HEIDENHAIN SW 54843x-02 User Manual

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User’s Manual

MANUALplus 620 CNC PILOT 640

smart.Turn and DIN Programming

NC Software 548430-02 548431-02 688946-02 688947-02

HEIDENHAIN MANUALplus 620, CNC PILOT 620/640 1

English (en) 1/2014

smart.Turn and DIN PLUS programming

This manual describes functions and features provided by lathe controls as of the following NC software numbers.

Control NC software number

MANUALplus 620 (HEROS 5) 548430-02

MANUALplus 620E (HEROS 5) 548431-02

CNC PILOT 640 (HEROS 5) 688946-02

CNC PILOT 640E (HEROS 5) 688947-02

The suffix E indicates the export version of the control. The export version of the control has the following limitations:

 Simultaneous linear movement in up to 4 axes

HEROS 5 identifies the new operating system of HSCI-based controls. Machine operation and cycle programming are described in the

MANUALplus 620 (ID 634864-xx) and CNC PILOT 640 (ID 730870-xx) User's Manuals. Please contact HEIDENHAIN if you require a copy of one of these manuals.

The machine manufacturer adapts the features offered by the control to the capabilities of the specific machine tool by setting machine parameters. Therefore, some of the functions described in this manual may not be among the features provided by the Control on your machine tool.

Some of the Control functions which are not available on every machine are:

 Positioning of spindle (M19) and driven tool  Operations with the C or Y axis

Please contact your machine manufacturer for detailed information on the features that are supported by your machine tool.

Many machine manufacturers and HEIDENHAIN offer programming courses. We recommend these courses as an effective way of improving your programming skill and sharing information and ideas with other Control users.

HEIDENHAIN also offers the DataPilot programming station for PCs, which is designed for use with the respective control. The DataPilot is excellently suited for both shop-floor programming as well as offlocation program creation and production planning. It is also ideal for training purposes. The DataPilot can be run on PCs with WINDOWS operating systems.

Control Programming station NC software

MANUALplus 620 DataPilot MP620 634132-06

CNC PILOT 640 DataPilot CP640 729666-02

Intended place of operation

The MANUALplus 620, CNC PILOT 640 complies with the limits for Class A devices in accordance with the specifications in EN 55022, and is intended for use primarily in industrially-zoned areas.

Legal information

This product uses open source software. Further information is available on the control under

 Organization mode of operation  Second soft-key row  LICENSE INFO soft key

HEIDENHAIN MANUALplus 620, CNC PILOT 640 3

New functions of software 54843x-01 and 688946-01

 On machines with a B axis it is now also possible to drill, bore, and

mill in oblique planes. In addition to this, the B axis enables you to use tools even more flexibly during turning (see "Tilted working plane" on page 562).

 The control now provides numerous touch probe cycles for various

applications (see "General information on touch probe cycles (software option)" on page 428):

 Calibrating a touch trigger probe  Measuring circles, circle segments, angle and position of the C

axis

 Misalignment compensation  Single-point and double-point measurements  Finding a hole or stud  Zero point setting in the Z or C axis  Automatic tool measurement

 The new TURN PLUS function automatically generates NC

programs for turning and milling operations based on a fixed machining sequence (see "TURN PLUS mode of operation" on page

528).

 G940 now provides a way to calculate the tool lengths in the basic

(definition) position of the B axis (see "Calculate variables automatically G940" on page 373)

 For machining operations that require rechucking, you can define a

separation point on the contour description with G44 (see "Separation point G44" on page 213).

 G927 enables you to convert tool lengths to the reference position

of the tool (B axis = 0) (see "Convert lengths G927" on page 373).

 Recesses that were defined with G22 can now be machined with

the new Cycle 870 ICP Recessing (see ""ICP recessing" unit" on page

75).

New functions of software 68894x-02 and 54843x-02

 The miscellaneous function "Shift zero point" was introduced in ICP

(see User's Manual)

 In ICP contours, you can now calculate fit sizes and internal threads

using an input form (see User's Manual)

 The miscellaneous function "Duplicate in linear/circular series, and

by mirroring" was introduced in ICP (see User's Manual)

 The system time can now be set using an input form (see User's

Manual)

 The parameters K, SD and U have been added to parting cycle G859

(see User's Manual)

 The angle of approach and departure can now be defined for ICP

recess turning (see User's Manual)

 With TURN PLUS you can now also create programs for machining

on the opposing spindle and for multipoint tools (see "Full-surface machining with TURN PLUS" on page 556)

 It is now also possible to select a milling contour in G797 "Area

milling" (see "Area milling, face G797" on page 343)

 The parameter Y was added to G720 (see "Spindle synchronization

G720" on page 378)

 The parameters O and U were added to G860 (see "Recessing

G860" on page 273)

HEIDENHAIN MANUALplus 620, CNC PILOT 640 5

About this manual

The symbols used in this manual are described below.

This symbol indicates that important information about the function described must be considered.

This symbol indicates that there is one or more of the following risks when using the described function:

 Danger to workpiece  Danger to fixtures  Danger to tool  Danger to machine  Danger to operator

This symbol indicates that the described function must be adapted by the machine tool builder. The function described may therefore vary depending on the machine.

This symbol indicates that you can find detailed information about a function in another manual.

About this manual

Do you want any changes, or have you found any errors?

We are continuously striving to improve our documentation for you. Please help us by sending your requests to the following e-mail address: tnc-userdoc@heidenhain.de.

HEIDENHAIN MANUALplus 620, CNC PILOT 640 7

About this manual

Contents

„NC programming”

„smart.Turn units”

„smart.Turn units for the Yaxis”

„DIN programming”

„Touch probe cycles”

„DIN programming for the Y axis”

„TURN PLUS”

„B axis”

„Overview of units”

„Overview of G codes”

1 NC programming ..... 31

1.1 smart.Turn and DIN (ISO) programming ..... 32

Contour follow-up ..... 32

Structured NC program ..... 33

Linear and rotary axes ..... 34

Units of measure ..... 34

Elements of an NC program ..... 35

1.2 The smart.Turn editor ..... 36

Menu structure ..... 36

Parallel editing ..... 37

Screen layout ..... 37

Selecting the editor functions ..... 37

Shared menu items ..... 38

1.3 Program section code ..... 44

HEADER section ..... 45

CHUCKING EQUIPMENT section ..... 46

TURRET section ..... 46

BLANK section ..... 47

AUXIL_BLANK section ..... 47

FINISHED section ..... 47

AUXIL_CONTOUR section ..... 47

FACE, REAR sections ..... 47

LATERAL section ..... 47

FRONT_Y, REAR_Y sections ..... 47

LATERAL_Y section ..... 48

MACHINING section ..... 49

END code ..... 49

SUBPROGRAM section ..... 49

RETURN code ..... 49

CONST code ..... 50

VAR code ..... 50

1.4 Tool programming ..... 51

Setting up a tool list ..... 51

Editing tool entries ..... 52

Multipoint tools ..... 52

Replacement tools ..... 53

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2 smart.Turn units ..... 55

2.1 smart.Turn units ..... 56

"Units" menu ..... 56

The smart.Turn unit ..... 56

2.2 Units—Roughing ..... 63

"Longitudinal roughing in ICP" unit ..... 63

"Transverse roughing in ICP" unit ..... 64

"Contour-parallel roughing in ICP" unit ..... 65

"Bidirectional roughing in ICP" unit ..... 66

"Longitudinal roughing with direct contour input" unit ..... 67

"Transverse roughing with direct contour input" unit ..... 68

2.3 Units—Recessing ..... 69

"ICP contour recessing" unit ..... 69

"ICP recess turning" unit ..... 70

"Contour recessing with direct contour input" unit ..... 71

"Recess turning with direct contour input" unit ..... 72

"Parting" unit ..... 73

"Undercutting (H, K, U)" unit ..... 74

"ICP recessing" unit ..... 75

2.4 Units—Centric drilling ..... 76

"Centric drilling" unit ..... 76

"Centric tapping" unit ..... 78

"Boring, centric countersinking" unit ..... 79

2.5 Units—Drilling in C axis ..... 80

"Single hole, face" unit ..... 80

"Linear pattern drilling, face" unit ..... 82

"Circular pattern drilling, face" unit ..... 84

"Tapping, face" unit ..... 86

"Linear tapping pattern, face" unit ..... 87

"Circular tapping pattern, face" unit ..... 88

"Single hole, lateral surface" unit ..... 89

"Linear pattern drilling, lateral surface" unit ..... 91

"Circular pattern drilling, lateral surface" unit ..... 93

"Tap hole, lateral surface" unit ..... 95

"Linear tapping pattern, lateral surface" unit ..... 96

"Circular tapping pattern, lateral surface" unit ..... 97

"ICP drilling, C axis" unit ..... 98

"ICP tapping, C axis" unit ..... 99

"ICP boring/countersinking, C axis" unit ..... 100

2.6 Units—Predrilling in C axis ..... 101

"Predrill, contour mill, figures on face" unit ..... 101

"Predrill, contour mill, ICP on face" unit ..... 103

"Predrill, pocket mill, figures on face" unit ..... 104

"Predrill, pocket mill, ICP on face" unit ..... 106

"Predrill, contour mill, figures on lateral surface" unit ..... 107

"Predrill, contour mill, ICP on lateral surface" unit ..... 109

"Predrill, pocket mill, figures on lateral surface" unit ..... 110

"Predrill, pocket mill, ICP on lateral surface" unit ..... 112

2.7 Units—Finishing ..... 113

"ICP contour finishing" unit ..... 113

"Longitudinal finishing with direct contour input" unit ..... 115

"Transverse finishing with direct contour input" unit ..... 116

"Relief turns (undercut) type E, F, DIN76" unit ..... 117

"Measuring cut" unit ..... 119

2.8 Units—Threads ..... 120

Overview of thread units ..... 120

Handwheel superimposition ..... 120

"Thread, direct" unit ..... 121

"ICP thread" unit ..... 122

"API thread" unit ..... 124

"Tapered thread" unit ..... 125

2.9 Units—Milling, face ..... 127

"Slot, face" unit ..... 127

"Linear slot pattern, face" unit ..... 128

"Circular slot pattern, face" unit ..... 129

"Face milling" unit ..... 130

"Thread milling" unit ..... 131

"Contour milling, figures, face" unit ..... 132

"ICP contour milling, face" unit ..... 134

"Pocket milling, figures, face" unit ..... 135

"ICP pocket milling, face" unit ..... 137

"Engraving, face" unit ..... 138

"Deburring, face" unit ..... 139

2.10 Units—Milling, lateral surface ..... 140

"Slot, lateral surface" unit ..... 140

"Linear slot pattern, lateral surface" unit ..... 141

"Circular slot pattern, lateral surface" unit ..... 142

"Helical slot milling" unit ..... 143

"Contour milling, figures, lateral surface" unit ..... 144

"ICP contour milling, lateral surface" unit ..... 146

"Pocket milling, figures, lateral surface" unit ..... 147

"ICP pocket milling, lateral surface" unit ..... 149

"Engraving, lateral surface" unit ..... 150

"Deburring, lateral surface" unit ..... 151

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2.11 Units—Special operations ..... 152

"Program beginning (START)" unit ..... 152

"C axis ON" unit ..... 154

"C axis OFF" unit ..... 154

"Subprogram call" unit ..... 155

"Program section repeat" unit ..... 156

"Program end" unit ..... 157

3 smart.Turn units for the Y axis ..... 159

3.1 Units—Drilling in the Y axis ..... 160

"ICP drilling, Y axis" unit ..... 160

"ICP tapping, Y axis" unit ..... 161

"ICP boring/countersinking, Y axis" unit ..... 162

3.2 Units—Predrilling in Y axis ..... 163

"Predrill, contour mill, ICP in XY plane" unit ..... 163

"Predrill, pocket mill, ICP in XY plane" unit ..... 164

"Predrill, contour mill, ICP in YZ plane" unit ..... 165

"Predrill, pocket mill, ICP in YZ plane" unit ..... 166

3.3 Units—Milling in Y axis ..... 167

"ICP contour milling in XY plane" unit ..... 167

"ICP pocket milling in XY plane" unit ..... 168

"Single-surface milling, XY plane" unit ..... 169

"Centric polygon milling, XY plane" unit ..... 170

"Engraving in XY plane" unit ..... 171

"Deburring in XY plane" unit ..... 172

"Thread milling in XY plane" unit ..... 173

"ICP contour milling in YZ plane" unit ..... 174

"ICP pocket milling in YZ plane" unit ..... 175

"Single-surface milling, YZ plane" unit ..... 176

"Centric polygon milling, YZ plane" unit ..... 177

"Engraving in YZ plane" unit ..... 178

"Deburring in YZ plane" unit ..... 179

"Thread milling in YZ plane" unit ..... 180

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4 DIN programming ..... 181

4.1 Programming in DIN/ISO mode ..... 182

Geometry and machining commands ..... 182

Contour programming ..... 183

NC blocks of the DIN program ..... 184

Creating, editing and deleting NC blocks ..... 185

Address parameters ..... 186

Fixed cycles ..... 187

Subprograms, expert programs ..... 188

NC program conversion ..... 188

DIN/ISO programs of predecessor controls ..... 189

"Geometry" pull-down menus ..... 191

"Machining" pull-down menus ..... 191

4.2 Definition of workpiece blank ..... 192

Chuck part bar/tube G20-Geo ..... 192

Cast part G21-Geo ..... 192

4.3 Basic contour elements ..... 193

Starting point of turning contour G0-Geo ..... 193

Machining attributes for form elements ..... 193

Line segment in a contour G1-Geo ..... 194

Circular arc of turning contour G2/G3-Geo ..... 196

Circular arc of turning contour G12/G13-Geo ..... 197

4.4 Contour form elements ..... 198

Recess (standard) G22-Geo ..... 198

Recess (general) G23-Geo ..... 200

Thread with undercut G24-Geo ..... 202

Undercut contour G25-Geo ..... 203

Thread (standard) G34-Geo ..... 207

Thread (general) G37-Geo ..... 208

Bore hole (centric) G49-Geo ..... 210

4.5 Attributes for contour description ..... 211

Feed rate reduction factor G38-Geo ..... 211

Attributes for superimposed elements G39-Geo ..... 212

Separation point G44 ..... 213

Oversize G52-Geo ..... 213

Feed per revolution G95-Geo ..... 214

Additive compensation G149-Geo ..... 214

4.6 C-axis contours—Fundamentals ..... 215

Milling contour position ..... 215

Circular pattern with circular slots ..... 218

4.7 Front and rear face contours ..... 221

Starting point of front/rear face contour G100-Geo ..... 221

Line segment in front/rear face contour G101-Geo ..... 222

Circular arc in front/rear face contour G102/G103-Geo ..... 223

Bore hole on front/rear face G300-Geo ..... 224

Linear slot on front/rear face G301-Geo ..... 225

Circular slot on front/rear face G302/G303-Geo ..... 225

Full circle on front/rear face G304-Geo ..... 226

Rectangle on front/rear face G305-Geo ..... 226

Eccentric polygon on front/rear face G307-Geo ..... 227

Linear pattern on front/rear face G401-Geo ..... 228

Circular pattern on front/rear face G402-Geo ..... 229

4.8 Lateral surface contours ..... 230

Starting point of lateral surface contour G110-Geo ..... 230

Line segment in a lateral surface contour G111-Geo ..... 231

Circular arc in lateral surface contour G112-/G113-Geo ..... 232

Hole on lateral surface G310-Geo ..... 233

Linear slot on lateral surface G311-Geo ..... 234

Circular slot on lateral surface G312/G313-Geo ..... 234

Full circle on lateral surface G314-Geo ..... 235

Rectangle on lateral surface G315-Geo ..... 235

Eccentric polygon on lateral surface G317-Geo ..... 236

Linear pattern on lateral surface G411-Geo ..... 237

Circular pattern on lateral surface G412-Geo ..... 238

4.9 Tool positioning ..... 239

Rapid traverse G0 ..... 239

Rapid traverse to machine coordinates G701 ..... 239

Setting the tool change position G14 ..... 240

Definition of tool-change point G140 ..... 240

4.10 Linear and circular movements ..... 241

Linear movement G1 ..... 241

Circular path G2/G3 ..... 242

Circular path G12/G13 ..... 243

4.11 Feed rate, shaft speed ..... 244

Speed limitation G26 ..... 244

Interrupted feed G64 ..... 244

Feed per tooth Gx93 ..... 245

Constant feed rate G94 (feed per minute) ..... 245

Feed per revolution Gx95 ..... 245

Constant surface speed Gx96 ..... 246

Speed Gx97 ..... 246

4.12 Tool-tip and cutter radius compensation ..... 247

G40: Switch off TRC/MCRC ..... 247

G41/G42: Switch on TRC/MCRC ..... 248

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4.13 Zero point shifts ..... 249

Zero point shift G51 ..... 250

Additive zero point shift G56 ..... 251

Absolute zero point shift G59 ..... 252

4.14 Oversizes ..... 253

Switch off oversize G50 ..... 253

Axis-parallel oversize G57 ..... 253

Contour-parallel oversize (equidistant) G58 ..... 254

4.15 Safety clearances ..... 255

Safety clearance G47 ..... 255

Safety clearance G147 ..... 255

4.16 Tools, compensations ..... 256

Tool call T ..... 256

Correction of cut (switching the tool edge compensation) G148 ..... 257

Additive compensation G149 ..... 258

Compensation of right-hand tool tip G150

Compensation of left-hand tool tip G151 ..... 259

4.17 Contour-based turning cycles ..... 260

Working with contour-based cycles ..... 260

Longitudinal roughing G810 ..... 262

Face roughing G820 ..... 265

Contour-parallel roughing G830 ..... 268

Contour cycle, bidirectional (contour-parallel with neutral tool) G835 ..... 271

Recessing G860 ..... 273

Repeat recessing cycle G740/G741 ..... 275

Recess turning cycle G869 ..... 276

Recessing cycle G870 ..... 279

Finish contour G890 ..... 280

Measuring cut G809 ..... 283

4.18 Contour definitions in the machining section ..... 284

Cycle end / Simple contour G80 ..... 284

Linear slot on front/rear face G301 ..... 285

Circular slot on front/rear face G302/G303 ..... 285

Full circle on front/rear face G304 ..... 286

Rectangle on front/rear face G305 ..... 286

Eccentric polygon on front/rear face G307 ..... 287

Linear slot on lateral surface G311 ..... 287

Circular slot on lateral surface G312/G313 ..... 288

Full circle, lateral surface G314 ..... 288

Rectangle, lateral surface G315 ..... 289

Eccentric polygon, lateral surface G317 ..... 289

4.19 Thread cycles ..... 290

Overview of threading cycles ..... 290

Handwheel superimposition ..... 290

Thread cycle G31 ..... 291

Simple thread cycle G32 ..... 295

Thread single path G33 ..... 297

Metric ISO thread G35 ..... 299

Tapered API thread G352 ..... 300

Metric ISO thread G38 ..... 302

4.20 Parting cycle ..... 303

Cut-off cycle G859 ..... 303

4.21 Undercut cycles ..... 304

Undercut cycle G85 ..... 304

Undercut according to DIN 509 E with cylinder machining G851 ..... 306

Undercut according to DIN 509 F with cylinder machining G852 ..... 307

Undercut according to DIN 76 with cylinder machining G853 ..... 308

Undercut type U G856 ..... 309

Undercut type H G857 ..... 310

Undercut type K G858 ..... 311

4.22 Drilling cycles ..... 312

Overview of drilling and boring cycles and contour reference ..... 312

Drilling cycle G71 ..... 313

Boring, countersinking G72 ..... 315

Tapping G73 ..... 316

Tapping G36—Single path ..... 318

Deep-hole drilling G74 ..... 319

Linear pattern, face G743 ..... 322

Circular pattern, face G745 ..... 323

Linear pattern, lateral surface G744 ..... 324

Circular pattern, lateral surface G746 ..... 325

Thread milling, axial G799 ..... 326

4.23 C-axis commands ..... 327

Reference diameter G120 ..... 327

Zero point shift, C axis G152 ..... 327

Standardize C axis G153 ..... 328

4.24 Front/rear-face machining ..... 329

Rapid traverse on front/rear face G100 ..... 329

Linear segment on front/rear face G101 ..... 330

Circular arc on front/rear face G102/G103 ..... 331

4.25 Lateral surface machining ..... 333

Rapid traverse, lateral surface G110 ..... 333

Line segment on lateral surface G111 ..... 334

Circular arc on lateral surface G112/G113 ..... 335

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4.26 Milling cycles ..... 336

Overview of milling cycles ..... 336

Linear slot on face G791 ..... 337

Linear slot on lateral surface G792 ..... 338

Contour and figure milling cycle, face G793 ..... 339

Contour and figure milling cycle, lateral surface G794 ..... 341

Area milling, face G797 ..... 343

Helical-slot milling G798 ..... 345

Contour milling G840 ..... 346

Pocket milling, roughing G845 ..... 356

Pocket milling, finishing G846 ..... 362

4.27 Engraving cycles ..... 364

Character set ..... 364

Engraving on front face G801 ..... 366

Engraving on lateral surface G802 ..... 367

4.28 Contour follow-up ..... 368

Saving/loading contour follow-up G702 ..... 368

Contour follow-up on/off G703 ..... 368

4.29 Other G codes ..... 369

Chucking equipment in simulation G65 ..... 369

Workpiece blank contour G67 (for graphics) ..... 369

Period of dwell G4 ..... 369

Precision stop G7 ..... 369

Precision stop off G8 ..... 370

Precision stop G9 ..... 370

Switch off protection zone G60 ..... 370

Actual values in variables G901 ..... 370

Zero-point shift in variables G902 ..... 370

Lag error in variables G903 ..... 370

Read interpolation information G904 ..... 371

Feed rate override 100 % G908 ..... 371

Interpreter stop G909 ..... 371

Spindle override 100 % G919 ..... 371

Deactivate zero-point shifts G920 ..... 372

Deactivate zero-point shifts, tool lengths G921 ..... 372

End position of tool G922 ..... 372

Fluctuating spindle speed G924 ..... 372

Convert lengths G927 ..... 373

Calculate variables automatically G940 ..... 373

Misalignment compensation G976 ..... 375

Activate zero-point shifts G980 ..... 375

Activate zero-point shifts, tool lengths G981 ..... 375

Activate direct program-run continuation G999 ..... 376

Converting and mirroring G30 ..... 376

Transformations of contours G99 ..... 377

Spindle synchronization G720 ..... 378

C-angle offset G905 ..... 379

Traversing to a fixed stop G916 ..... 380

Controlled parting using lag error monitoring G917 ..... 382

Force reduction G925 ..... 383

Sleeve monitoring G930 ..... 384

4.30 Data input and data output ..... 385

"WINDOW"—Output window for variables ..... 385

"WINDOW"—Output file for variables ..... 385

"INPUT"—Input of variables ..... 385

Output of # variables PRINT ..... 386

HEIDENHAIN MANUALplus 620, CNC PILOT 640 21

4.31 Programming variables ..... 387

Variable types ..... 388

Reading tool data ..... 390

Reading the current NC information ..... 392

Reading general NC information ..... 393

Reading configuration data—PARA ..... 394

Determining the index of a parameter element—PARA ..... 395

Expanded variable syntax CONST – VAR ..... 396

4.32 Conditional block run ..... 398

Program branching IF..THEN..ELSE..ENDIF ..... 398

Requesting variables and constants ..... 399

WHILE..ENDWHILE program repeat ..... 400

SWITCH..CASE—program branching ..... 401

4.33 Subroutines ..... 402

Subprogram call: L"xx" V1 ..... 402

Dialog texts in subprogram call ..... 403

Help graphics for subprogram calls ..... 404

4.34 M commands ..... 405

M commands for program-run control ..... 405

Machine commands ..... 406

4.35 G codes from previous controls ..... 407

Contour definitions in the machining section ..... 407

Simple turning cycles ..... 409

Thread cycles (4110) ..... 414

4.36 DINplus program example ..... 416

Example of a subprogram with contour repetitions ..... 416

4.37 Connection between geometry and machining commands ..... 419

Turning ..... 419

C-axis machining—front/rear face ..... 420

C-axis machining—lateral surface ..... 420

4.38 Full-surface machining ..... 421

Fundamentals of full-surface machining ..... 421

Programming of full-surface machining ..... 422

Full-surface machining with opposing spindle ..... 423

Full-surface machining with single spindle ..... 425

5 Touch probe cycles ..... 427

5.1 General information on touch probe cycles (software option) ..... 428

Principle of function of touch probe cycles ..... 428

Touch probe cycles for automatic operation ..... 429

5.2 Touch probe cycles for single-point measurement ..... 431

Single-point measurement for tool compensation G770 ..... 431

Single-point measurement for zero point G771 ..... 433

Zero point C axis, single-point measurement G772 ..... 435

Zero point C-axis object center G773 ..... 437

5.3 Touch probe cycles for two-point measurement ..... 439

Two-point measurement G18 transverse G775 ..... 439

Two-point measurement G18 longitudinal G776 ..... 441

Two-point measurement G17 longitudinal G777 ..... 443

Two-point measurement G19 longitudinal G778 ..... 445

5.4 Calibrating touch probes ..... 447

Calibrate touch probe standard G747 ..... 447

Calibrate touch probe via two points G748 ..... 449

5.5 Measuring with touch probe cycles ..... 451

Paraxial probing G764 ..... 451

Probing in C axis G765 ..... 452

Probing in two axes G766 ..... 453

Probing in two axes G768 ..... 454

Probing in two axes G769 ..... 455

5.6 Search cycles ..... 456

Find hole in C face G780 ..... 456

Find hole in C lateral surface G781 ..... 458

Find stud in C face G782 ..... 460

Find stud in C lateral surface G783 ..... 462

5.7 Circular measurement ..... 464

Circular measurement G785 ..... 464

Determine pitch circle G786 ..... 466

5.8 Angular measurement ..... 468

Angular measurement G787 ..... 468

Misalignment compensation after angle measurement G788 ..... 470

5.9 In-process measurement ..... 471

Measure workpieces (option) ..... 471

Switch on measurement G910 ..... 471

Measuring path monitoring G911 ..... 472

Measured value capture G912 ..... 472

End in-process measuring G913 ..... 472

Switch off measuring-path monitoring G914 ..... 472

In-process measurement example: Measuring and compensating workpieces ..... 473

In-process measurement example: Measuring and compensating workpieces (measure_pos_move.ncs) ..... 474

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6 DIN programming for the Y axis ..... 475

6.1 Y-axis contours—Fundamentals ..... 476

Position of milling contours ..... 476

Cutting limit ..... 477

6.2 Contours in the XY plane ..... 478

Starting point of contour in XY plane G170 Geo ..... 478

Line segment in XY plane G171 Geo ..... 478

Circular arc in XY plane G172-Geo/G173-Geo ..... 479

Hole in XY plane G370-Geo ..... 480

Linear slot in XY plane, G371-Geo ..... 481

Circular slot in XY plane G372-Geo/G373-Geo ..... 482

Full circle in XY plane G374-Geo ..... 482

Rectangle in XY plane G375-Geo ..... 483

Eccentric polygon in XY plane G377-Geo ..... 483

Linear pattern in XY plane, G471-Geo ..... 484

Circular pattern in XY plane, G472 Geo ..... 485

Single surface in XY plane G376-Geo ..... 486

Centric polygon in XY plane G477-Geo ..... 486

6.3 Contours in the YZ plane ..... 487

Starting point of contour in YZ plane G180-Geo ..... 487

Line segment in YZ plane G181-Geo ..... 487

Circular arc in YZ plane G182-Geo/G183-Geo ..... 488

Hole in YZ plane G380-Geo ..... 489

Linear slot in YZ plane, G381-Geo ..... 489

Circular slot in YZ plane G382-Geo/G383-Geo ..... 490

Full circle in YZ plane G384-Geo ..... 490

Rectangle in YZ plane G385-Geo ..... 491

Eccentric polygon in YZ plane G387-Geo ..... 491

Linear pattern in YZ plane, G481-Geo ..... 492

Circular pattern in YZ plane, G482-Geo ..... 493

Single surface in YZ plane G386-Geo ..... 494

Centric polygon in YZ plane G487-Geo ..... 494

6.4 Working planes ..... 495

Y-axis machining ..... 495

G17 XY plane (front or rear face) ..... 495

G18 XZ plane (turning) ..... 495

G19 YZ plane (lateral view / lateral surface) ..... 495

Tilting the working plane G16 ..... 496

6.5 Tool positioning in the Y axis ..... 497

Rapid traverse G0 ..... 497

Approach tool change point G14 ..... 497

Rapid traverse to machine coordinates G701 ..... 498

6.6 Linear and circular movements in the Y axis ..... 499

Milling: Linear movement G1 ..... 499

Milling: Circular movement G2, G3—incremental center coordinates ..... 500

Milling: Circular movement G12, G13—absolute center coordinates ..... 501

6.7 Milling cycles for the Y axis ..... 502

Area milling—roughing G841 ..... 502

Area milling—finishing G842 ..... 503

Centric polygon milling—roughing G843 ..... 504

Centric polygon milling—finishing G844 ..... 505

Pocket milling—roughing G845 (Y axis) ..... 506

Pocket milling—finishing G846 (Y axis) ..... 512

Engraving in XY plane G803 ..... 514

Engraving in the YZ plane G804 ..... 515

Thread milling in XY plane G800 ..... 516

Thread milling in YZ plane G806 ..... 517

Hobbing G808 ..... 518

6.8 Example program ..... 519

Machining with the Y axis ..... 519

HEIDENHAIN MANUALplus 620, CNC PILOT 640 25

7 TURN PLUS ..... 527

7.1 TURN PLUS mode of operation ..... 528

TURN PLUS concept ..... 528

7.2 Automatic working plan generation (AWG) ..... 529

Generating a working plan ..... 530

Machining sequence—Fundamentals ..... 531

Editing and managing machining sequences ..... 533

Overview of machining sequences ..... 534

7.3 AWG control graphic ..... 544

Setting the AWG control graphic ..... 544

7.4 Machining information ..... 545

Tool selection, turret assignment ..... 545

Contour recessing, recess turning ..... 546

Drilling ..... 546

Cutting data, coolant ..... 547

Inside contours ..... 547

Shaft machining ..... 550

7.5 Example ..... 552

Creating a program ..... 552

Defining the workpiece blank ..... 552

Defining the basic contour ..... 553

Defining form elements ..... 553

Preparing the machining process, chucking ..... 554

Generating and saving a working plan ..... 555

7.6 Full-surface machining with TURN PLUS ..... 556

Rechucking the workpiece ..... 556

Defining the chucking equipment for full-surface machining ..... 557

Automatic program creation for full-surface machining ..... 558

Rechucking the workpiece in the main spindle ..... 558

Transferring the workpiece from the main spindle to the opposing spindle ..... 559

Parting and picking-off the workpiece with the opposing spindle ..... 559

8 B axis ..... 561

8.1 Fundamentals ..... 562

Tilted working plane ..... 562

8.2 Compensation with the B axis ..... 565

Compensation during program run ..... 565

8.3 Simulation ..... 566

Simulation of the tilted plane ..... 566

Displaying the coordinate system ..... 566

Position display with the B and Y axes ..... 567

HEIDENHAIN MANUALplus 620, CNC PILOT 640 27

9 Overview of units ..... 569

9.1 Units—"Turning" group ..... 570

"Roughing" group ..... 570

"Finishing" group ..... 570

"Recessing" group ..... 571

"Thread" group ..... 571

9.2 Units—"Drilling" group ..... 572

"Centric drilling" group ..... 572

"ICP drilling, C axis" group ..... 572

"C-axis face drilling" group ..... 572

"C-axis lateral surface drilling" group ..... 573

9.3 Units—"Predrilling in C axis" group ..... 574

"Predrilling in C-axis, face" group ..... 574

"Predrilling in C-axis, lateral surface" group ..... 574

9.4 Units—"Milling in C axis" group ..... 575

"Milling in C-axis, face" group ..... 575

"ICP milling in C axis, face" group ..... 575

"C-axis lateral surface milling" group ..... 576

"ICP milling in C axis, lateral surface" group ..... 576

9.5 Units—"Drilling, predrilling in Y axis" group ..... 577

"ICP drilling, Y axis" group ..... 577

"Predrilling in Y axis" group ..... 577

9.6 Units—"Milling in Y axis" group ..... 578

"Milling in front face" group (XY plane) ..... 578

"Milling in lateral surface" group (YZ plane) ..... 579

9.7 Units—"Special units" group ..... 580

10 Overview of G codes ..... 581

10.1 Section codes ..... 582

10.2 Overview of G commands in the CONTOUR section ..... 583

G commands for turning contours ..... 583

G commands for C-axis contours ..... 584

G commands for Y-axis contours ..... 584

10.3 Overview of G commands in the MACHINING section ..... 585

G commands for turning ..... 585

Cycles for turning ..... 586

C-axis machining ..... 587

Y-axis machining ..... 588

Variable programming, program branches ..... 588

Other G codes ..... 589

HEIDENHAIN MANUALplus 620, CNC PILOT 640 29

NC programming

HEIDENHAIN MANUALplus 620, CNC PILOT 640 31

1.1 smart.Turn and DIN (ISO) programming

The control supports the following types of NC programming:

 Conventional DIN/ISO programming: You program the basic

contour with line segments, circular arcs and simple turning cycles. Use the smart.Turn editor in ISO mode.

 "DIN PLUS" (ISO) programming: The geometrical description of

the workpiece and the machining process are separated. You first program the geometry of the blank and finished part. Then you machine the workpiece, using contour-related turning cycles. Use the smart.Turn editor in ISO mode.

 smart.Turn programming: The geometrical description of the

workpiece and the machining process are separated. You program the geometry of the blank and finished part, and you program the machining blocks as units. Use the smart.Turn editor in unit mode.

Depending on the type and complexity of your machining task, you can use either simple DIN/ISO programming, "DIN PLUS" (ISO) programming or smart.Turn programming. All three named programming modes can be combined in one NC program.

In DIN PLUS and smart.Turn programming, contours can be described with ICP interactive graphics. ICP saves the contour descriptions as G codes in the NC program.

Parallel operation: While you are editing and testing programs, your machine can run another NC program.

Contour follow-up

1.1 smart.Turn and DIN (ISO) programming

The control uses the contour follow-up function in DIN PLUS and smart.Turn programs. The control takes the blank part as a basis and accounts for each cut and each cycle when regenerating the contour. Thus you can inspect the current contour of the workpiece during each machining stage. With the "contour follow-up" function, the control optimizes the paths for approach and departure and avoids air cuts.

Contour regeneration is only available for turning operations when a blank part has been programmed. It also works with auxiliary contours.

32 NC programming

Structured NC program

smart.Turn and DIN PLUS programs are structured in fixed sections. The following program sections are created automatically in a new NC program:

 Program head: Contains information on the material of the

workpiece, the unit of measure as well as further organizational data and setup information as a comment.

 Chucking equipment: Description of the workpiece clamping

situation.

 Blank: The workpiece blank is stored. Programming a blank

activates the contour follow-up.

 Finished part: The finished part is stored. It is advisable to describe

the complete workpiece as a finished part. The units or fixed cycles use NS and NE to indicate the workpiece section to be machined.

 Machining: Use units or cycles to program the individual machining

steps. In a smart.Turn program, the START unit is located at the beginning of the machining process, and the END unit at the end.

 End: Indicates the end of the NC program.

If required, for example for machining with the C axis or when programming with variables, you add further program sections.

Use ICP (Interactive Contour Programming) for describing blank and finished parts.

Example: "Structured smart.Turn program"

HEADER #UNIT METRIC #MATERIAL Steel #MACHINE Automatic lathe #DRAWING 356_787.9 #CLAMP. PRESS. 20 #COMPANY Turn & Co

TURRET T1 ID"038_111_01" T2 ID"006_151_A"

CHUCKING EQUIPMENT 1 H0 D0 Z200 B20 O-100 X120 K12 Q4

BLANK N1 G20 X120 Z120 K2

FINISHED PART N2 G0 X0 Z0 N3 G1 X20 BR3 N4 G1 Z-24 . . . MACHINING N50 UNIT ID"START" [Program beginning] N52 G26 S4000 N53 G59 Z320 N54 G14 Q0 N25 END_OF_UNIT . . . [Machining commands] . . . N9900 UNIT ID"END" [End of program] N9902 M30 N9903 END_OF_UNIT END

1.1 smart.Turn and DIN (ISO) programming

HEIDENHAIN MANUALplus 620, CNC PILOT 640 33

Linear and rotary axes

Principal axes: Coordinates of the X, Y and Z axes refer to the

workpiece datum.

C axis as reference axis:

 Angle data are with given respect to the zero point of the C axis.  C-axis contours and C-axis operations:

 Positions on the front/rear face are entered in Cartesian

coordinates (XK, YK), or polar coordinates (X, C)

 Positions on the lateral surface are entered in polar coordinates (Z,

C). Instead of C, the linear value CY is used ("unrolled" reference diameter).

 The smart.Turn editor respects only address letters of

the configured axes.

Units of measure

You write NC programs in metric or inch values. The unit of measure is defined in the "Unit" box (See "HEADER section" on page 45.).

Once the unit of measure has been defined, it cannot be edited any longer.

1.1 smart.Turn and DIN (ISO) programming

34 NC programming

Elements of an NC program

An NC program consists of the following elements:

 Program name  Program section codes  Units  NC blocks  Commands for program structuring  Comment blocks

The program name begins with "%" followed by up to 40 characters (numbers, uppercase letters or underscore; no diacritical marks) and the extension "nc" for main programs or "ncs" for subprograms. The first character must be a number or a letter.

Program section codes: When you create a new NC program, certain program section codes are already entered. You can add new codes or delete existing ones, depending on your program requirements. An NC program must contain at least the MACHINING and END section codes.

The unit begins with this keyword followed by the identification of the unit (ID"G..."). The following lines contain the G, M and T functions of this machining block. The unit ends with END_OF_UNIT followed by a check digit.

NC blocks begin with an N followed by a block number (with up to five digits). The block numbers do not affect the sequence in which the program blocks are executed. They are only intended for identifying the individual NC blocks.

The NC blocks of the HEADER and TURRET sections are not included in the block number organization of the editor.

Program branches, program repeats and subprograms can be used to structure the program (example: machining the front/back of a bar, etc.).

Input and output: With "input" you can influence the flow of the NC program. Using "output," you can communicate with the machinist. Example: The machinist is required to check measuring points and update compensation values.

Comments are enclosed in brackets "[...]." They are located at the end of an NC block or in a separate NC block. Press the key combination CTRL+K to convert an existing block into a comment (and vice versa).

You can also enclose more than one program line in square brackets to mark them as a comment. To do this, enter a comment containing the character "[" and conclude the section by entering another comment containing the character "]".

1.1 smart.Turn and DIN (ISO) programming

HEIDENHAIN MANUALplus 620, CNC PILOT 640 35

1.2 The smart.Turn editor

Menu structure

You can select the following editor modes in the smart.Turn editor:

 Unit programming (standard)  DIN/ISO mode (DIN PLUS and DIN 66025)

The menu structure of the smart.Turn editor is shown in the illustration at right. Many menu items are used in both modes. The menus differ in the area of geometry and part programming. In DIN/ISO mode the menu items "Geo(metry)" and "Mach(ining)" are displayed instead of the menu items "ICP" and "Units" (see illustrations at lower right). You can switch between the editor modes by soft key.

 Switches between the Unit mode and DIN/ISO mode

1.2 The smart.Turn editor

For special cases you can change to the text-editor mode in order to edit character-by-character without syntax checking. The setting is made in the Configuration / Input mode menu item.

For a description of the functions, please refer to the following chapters:

 Shared menu items: See "Menu structure" on page 36.  ICP functions: Chapter 5 in the User's Manual  Units for turning and C-axis machining: See "smart.Turn units" on

page 55.

 Units for Y-axis machining: See "smart.Turn units for the Y axis" on

page 159.

 G codes for turning and C-axis machining (geometry and machining):

See "DIN programming" on page 181.

 G codes for Y-axis machining (geometry and machining): See "DIN

programming for the Y axis" on page 475.

36 NC programming

Parallel editing

Up to 6 NC programs can be opened simultaneously in the smart.Turn editor. The editor shows the names of the open programs in the tab bar. If you have changed the NC program, the editor displays the name in red.

You can program in the smart.Turn editor while the machine is running a program in the automatic mode.

 The smart.Turn editor saves all open programs with

every mode change.

 The program running in the automatic mode cannot be

edited.

Screen layout

1 Menu bar 2 NC program bar with the name of the loaded NC programs. The

selected program is marked.

3 Program window 4 Contour display or large program window 5 Soft keys 6 Status bar

Selecting the editor functions

The functions of the smart.Turn editor are contained in the main menu and various submenus.

The submenus can be called by:

 selecting the desired menu item  positioning the cursor in the respective program section

You can access the higher-level menu:

 by pressing the ESC key

 by using the menu item

Soft keys: Soft keys are available for fast switching to "neighboring operating modes," for changing the editing window and for activating the graphics.

1.2 The smart.Turn editor

Soft keys with active program window

Starts the current program in the simulation.

Opens the contour, in which the cursor is located, in ICP.

Activates the zoom function in the contour display.

Switches between the Unit mode and DIN/ISO mode.

Activates the contour display and starts redrawing the contour.

HEIDENHAIN MANUALplus 620, CNC PILOT 640 37

Shared menu items

The menu items described below are used both in smart.Turn mode and in DIN/ISO mode.

"Program management" pull-down menu

The "Prog" pull-down menu (program management) contains the following functions for NC main and subprograms:

 Open: Load existing programs  New: Create new programs  Close: The selected program is closed  Close All: All open programs are closed  Save: The selected program is saved  Save As: The selected program is saved under a new name  Direct opening of the last four programs

1.2 The smart.Turn editor

When an NC program is opened or when a new NC program is created, the soft-key row is switched to the sorting and organization

functions. See "Sorting, file organization" on page 43..

"Head" pull-down menu (program head)

The "Head" pull-down menu (program head) contains functions for editing the program head and the tool list.

 Program head: Edit the program head  Go to chucking equipment: Positions the cursor in the "chucking

equipment" section

 Insert chucking equipment: Describe how the workpiece is

clamped

 Go to tool list: Positions the cursor in the TURRET section  Set up the tool list: Activates the "Set up tool list" function (see

page 51)

"ICP" pull-down menu

The "ICP" pull-down menu (Interactive Contour Programming) contains the following functions:

 Contour editing: Change the current contour (cursor position)  Workpiece blank: Edit the description of the workpiece blank  Finished part: Edit the description of the finished part  New auxiliary blank: Create a new auxiliary workpiece blank  New aux. contour: Create a new auxiliary contour  C axis ...: Create patterns and milling contours on the front face and

lateral surface

 Y axis ...: Create patterns and milling contours in the XY and YZ

planes

38 NC programming

"Goto" pull-down menu

The "Goto" pull-down menu contains the following jump and search functions:

 Jump targets—The editor positions the cursor to the selected jump

target:

 To beginning  To tool table  To finished part  To machining  To end

 Search functions

 Find block number: You specify a certain block number. The

editor jumps to this block number if it exists.

 Find unit: The editor opens the list of units available in the

program. Select the desired unit.

 Find NC word: The editor opens the dialog for entering the

desired NC word. You can use the soft keys to search forward or backward.

 Search for contour: The editor opens the list of contours

available in the program. Select the desired contour.

"Configuration" pull-down menu

The "Config" pull-down menu (Configuration) contains the following functions:

 Input mode ...: Define the input mode

 ... NC editor (word-by-word): The editor works in the NC mode

(word by word)

 ... Text editor (character): The editor works character by

character (no syntax checking)

 Settings ...

 ... Save: The editor memorizes the open NC programs and the

respective cursor positions.

 ... Load last saved setting: Restores the last saved condition of

the editor.

 Technology data: Starts the technology editor

1.2 The smart.Turn editor

HEIDENHAIN MANUALplus 620, CNC PILOT 640 39

"Miscellaneous" pull-down menu

The "Misc" pull-down menu (Miscellaneous) contains the following functions:

 Insert block ...

 ... W/o block no.: The editor inserts an empty line at the cursor

position (without block number).

 ... With block no.: The editor inserts an empty line at the cursor

position (with block number). Alternative: When you press the INS key, the editor inserts a block with block number.

 ... Comment at line end: The editor inserts a comment at the end

of the line in which the cursor is located.

 Edit word: You can edit the NC word at which the cursor is located.  Delete word: The editor deletes the NC parameter at the cursor

position.

 Dissolve unit: Position the cursor to the first line of a unit before

selecting this menu item. The editor cancels the brackets around

1.2 The smart.Turn editor

the unit. The unit dialog can no longer be used for this machining block, but you can edit the machining block as desired.

 Block numbering: The block numbering settings are the starting

block number and the block-number increment. The first NC block receives the starting block number and the block-number increment is added for each further NC block. The settings for starting block number and block number increment are tied with the NC program.

40 NC programming

"Extras" pull-down menu The "Extras" pull-down menu contains the following functions:

 DIN PLUS word: The editor opens the selection list with all DIN

PLUS words in alphabetical order. Select the desired instruction for program structuring or the input/output command. The editor inserts the DIN PLUS word at the cursor position.

 Comment line: The comment is inserted above the position of the

cursor.

 Constant definition: The expression is inserted above the position

of the cursor. If the DIN PLUS word "CONST" is not present yet, it is also inserted.

 Assignment of variables: Inserts a variable instruction.  L call external (the subprogram is in a separate file): The editor

opens the file selection window for subprograms. Select the subprogram and fill out the subprogram dialog. The control searches for subprograms in the sequence: current project, standard directory and then machine manufacturer directory.

 L call internal (the subprogram is contained in the main program):

The editor opens the subprogram dialog.

 Block functions. This pull-down menu contains functions for

marking, copying and deleting sections.

 Marking On/Off: Activates/Deactivates the marking mode during

cursor movement.

 Cancel marking: After calling the menu item, no part of the

program is marked.

 Cut: Deletes the marked part of the program and copies it to the

clipboard.

 Copy: Copies the marked part of the program into the clipboard.  Insert: Inserts the contents of the clipboard at the cursor position.

Any parts of the program that are marked are replaced by the contents of the clipboard.

1.2 The smart.Turn editor

HEIDENHAIN MANUALplus 620, CNC PILOT 640 41

"Graphics" pull-down menu

The "Graph." pull-down menu contains the following functions (see figure at right):

 Graphic On: Activates the graphic window or updates the displayed

contour. As an alternative, you can use the soft key (see table at right).

 Graphic Off: Closes the graphic window.  Graphic for Automatic: The graphic window is activated when the

cursor is located in the contour description.

 Window: Sets the graphic window. During editing, the control

displays programmed contours in up to four graphic windows. Set the desired windows.

 Magnifier on: Activates the zoom function. As an alternative, you

can use the soft key (see table at right).

The graphic window:

1.2 The smart.Turn editor

 Colors in contour graphics:

 White: workpiece blank and auxiliary blank  Yellow: finished part  Blue: auxiliary contours  Red: contour element at the current cursor position. The arrow

point indicates the direction of machining.

 When programming fixed cycles, you can use the displayed contour

for establishing block references.

 Using the zoom functions, you can magnify, reduce or shift details.

Soft keys with active program window

Activates the contour display and starts redrawing the contour.

Opens the soft-key menu for the zoom functions and displays the zoom frame.

 Additions/changes to the contour will not be considered

until the GRAPHICS soft key is pressed again.

 Unambiguous NC block numbers are a prerequisite for

the contour display!

42 NC programming

Sorting, file organization

When an NC program is opened or when a new NC program is created, the soft-key row is switched to the sorting and organization functions. Use the soft keys to select the order in which the programs are to be displayed, or use the functions for copying, deleting, etc.

Soft keys file manager

Deletes the selected program after confirmation prompt

Makes it possible to change the program name

Copies the selected program

Switches the write protection attribute on or off for the selected program

Activates the alphabetic keyboard

Soft keys for sorting

Displays the file attributes: size, date, time

Sorts by file name

Sorts by file size

Sorts by creation date or change date

Reverses the sorting direction

Opens the selected program

1.2 The smart.Turn editor

HEIDENHAIN MANUALplus 620, CNC PILOT 640 43

1.3 Program section code

A new NC program is already provided with section codes. You can add new codes or delete existing ones, depending on your program requirements. An NC program must contain at least the MACHINING and END section codes.

Further program section codes are available in the "Insert DIN PLUS word" selection list ("Extras > DIN PLUS word" menu item). The control enters the program section code at the correct position or at the current position.

German program section codes are used when German is set as the conversational language. All other languages use English program section codes.

Overview of program section codes

1.3 Program section code

German English

Program head

PROGRAMMKOPF HEADER Page 45

SPANNMITTEL CHUCKING EQUIPMENT

(CLAMPS)

REVOLVER TURRET Page 46

Page 46

Example: Program section codes

. . . [Sections of the contour description] BLANK N1 G20 X100 Z220 K1

Contour definition

ROHTEIL BLANK Page 47

FERTIGTEIL FINISHED Page 47

HILFSKONTUR AUXIL_CONTOUR Page 47

HILFSROHTEIL AUXIL_BLANK Page 47

C-axis contours

STIRN FACE_C Page 47

RUECKSEITE REAR_C Page 47

MANTEL LATERAL_C Page 47

Y-axis contours

STIRN_Y FACE_Y Page 47

RUECKSEITE_Y REAR_Y Page 47

MANTEL_Y LATERAL_Y Page 48

Workpiece machining

BEARBEITUNG MACHINING Page 49

ENDE END Page 49

FINISHED PART N2 G0 X60 Z0 N3 G1 Z-70 . . . FRONT Z-25 N31 G308 ID"01" P-10 N32 G402 Q5 K110 A0 Wi72 V2 XK0 YK0 N33 G300 B5 P10 W118 A0 N34 G309

FRONT Z0 N35 G308 ID"02" P-6 N36 G307 XK0 YK0 Q6 A0 K34.641 N37 G309 . . .

44 NC programming

Overview of program section codes

German English

Subprograms

UNTERPROGRAMM SUBPROGRAM Page 49

RETURN RETURN Page 49

Others

CONST CONST Page 50

VAR VAR Page 50

For more than one independent contour definition for drilling/milling, use the program section codes (FRONT, SURFACE, etc.) each time.

HEADER section

Instructions and information in the program head (HEADER):

 Unit:

 Select dimensional system in millimeters or inches  No entry: The unit set in the user parameter is used.

 The other fields contain organizational information and set-up

information, which do not influence the machining process.

Information contained in the program head is preceded by "#" in the NC program.

1.3 Program section code

You can only select a unit when creating a new NC program. It is not possible to post-edit this entry.

HEIDENHAIN MANUALplus 620, CNC PILOT 640 45

CHUCKING EQUIPMENT section

In the CHUCKING EQUIPMENT program section you describe how the workpiece is clamped. This makes it possible to display the chucking equipment during simulation. In TURN PLUS the chucking equipment information is used to calculate the zero points and cutting limits during automatic program generation.

Parameters

H Chuck number D Spindle number for AWG RClamp type

 0: Parameter J defines the free length  1: Parameter J defines the clamping length

Z Position of the chuck edge B Chuck jaw reference J Clamping length or free length of the workpiece (depending

1.3 Program section code

O Cutting limit for outside machining I Cutting limit for inside machining K Overlap jaw/workpiece (pay attention to sign) X Clamping diameter of workpiece blank Q Chuck form

V Shaft machining AWG

on the clamp type R)

 4: Outside chucking  5: Inside chucking

 0: Chuck: Automatic separation points at largest and

smallest diameter

 1: Shaft/chuck: Machining also starting from the chuck  2: Shaft/face driver: Outside contour can be machined

completely

If you do not define the parameters Z and B, TURN PLUS will use the following process parameters during AWG (automatic working plan generation):

 Front chuck edge on spindle / counterspindle  Jaw width on spindle / counterspindle

TURRET section

The TURRET program section defines the assignment of the tool carrier. For every assigned turret pocket, the tool ID number is entered. For multipoint tools, every cutting edge is entered in the turret list.

 If you do not program the TURRET, the tools entered

in the tool list of the Machine operating mode will be used.

46 NC programming

Example: Turret table

. . . TURRET T1 ID"342-300.1" T2 ID"C44003" . . .

BLANK section

In this program section, you describe the contour of the workpiece blank.

AUXIL_BLANK section

In the AUXIL_ BLANK section, you define additional workpiece blanks, which can be activated with G702 when required.

FINISHED section

In this program section, you describe the contour of the finished part. After the FINISHED section you use additional section codes such as FACE, LATERAL, etc.

AUXIL_CONTOUR section

In this program section, you describe the auxiliary turning contours.

FACE, REAR sections

In this program section you describe the front and rear side contours to be machined with the C axis. The program section defines the position of the contour in Z direction.

Parameter

Z Position of the front/rear-face contour

LATERAL section

In this program section you describe the lateral surface contours to be machined with the C axis. The program section defines the position of the contour in X direction.

Parameter

X Reference diameter of lateral-surface contours.

FRONT_Y, REAR_Y sections

For lathes with Y axis, these program section codes define the XY plane (G17) and the position of the contour in Z direction. The spindle angle (C) defines the spindle position.

Parameter

X Area diameter (as cutting limit) Z Position of the reference plane—default: 0 C Spindle angle—default: 0

1.3 Program section code

HEIDENHAIN MANUALplus 620, CNC PILOT 640 47

LATERAL_Y section

H=0

B, I, K

K

H=1

I

The section code identifies the YZ plane (G19). For machines equipped with a B axis, it defines the tilted plane.

Without tilted plane: The reference diameter defines the contour position in the X direction; the C axis angle defines the position on the workpiece.

Parameter

X Reference diameter C C axis angle—Defines the spindle position

With tilted plane (see figures): SURFACE_Y additionally performs the following transformations and rotations for the tilted plane:

 Shifts the coordinate system to the position I, K  Rotates the coordinate system by the angle B; reference point: I, K

1.3 Program section code

 H=0: Shifts the rotated coordinate system by –I. The coordinate

system is moved "back."

Parameter

X Reference diameter C C axis angle—Defines the spindle position B Plane angle: Positive Z axis I Plane reference in X direction (radius) K Plane reference in Z direction H Automatic shift of the coordinate system (default: 0)

 0: The rotated coordinate system is shifted by –I  1: The coordinate system is not shifted

Shifting "back" coordinate system: The control evaluates the reference diameter for the cutting limit. This value is also used as the reference value for the depth that you program for drilling operations and milling contours.

Since the reference diameter is referenced to the current zero point, it is recommended when working in a tilted plane, to shift the rotated coordinate system "back" by the distance –I. If the cutting limits are not needed, for example for drilling holes, you can disable the shift of the coordinate system (H=1) and set the reference diameter to 0.

Please note:

 X is the infeed axis in a tilted coordinate system. X

coordinates are entered as diameter coordinates.

 Mirroring the coordinate system has no effect on the

reference axis of the tilt angle ("B axis angle" of the tool call).

48 NC programming

Example: "SURFACE_Y"

HEADER ... CONTOUR Q1 X0 Z600 BLANK ... FINISHED PART ... SURFACE_Y X118 C0 B130 I59 K0 ... MACHINING ...

MACHINING section

In the MACHINING program section you program the machining operations. This code must be included.

END code

The END code concludes the NC program. This code must be included.

SUBPROGRAM section

If you define a subprogram within your NC program (within the same file), it is designated with SUBPROGRAM, followed by the name of the subprogram (max. 40 characters).

RETURN code

The RETURN code concludes the subprogram.

1.3 Program section code

HEIDENHAIN MANUALplus 620, CNC PILOT 640 49

CONST code

In the CONST section of the program you define constants. You use constants for the definition of a value.

You enter the value directly or you calculate it. If you use constants in the calculation you must first define them.

The length of the constant name must not exceed 20 characters. Lower case letters and numbers are allowed. Constants always begin with an underscore: See "Expanded variable syntax CONST – VAR" on page 396.

1.3 Program section code

VAR code

In the VAR program section, you assign names (descriptive text) to variables: See "Expanded variable syntax CONST – VAR" on page 396..

The length of the variable name must not exceed 20 characters. Lower case letters and numbers are allowed. Variables always begin with "#".

Example: CONST

CONST _nvr = 0 _sd=PARA("","CfgGlobalTechPara","safetyDis

tWorkpOut") _nws = _sd-_nvr . . . BLANK N 1 G20 X120 Z_nws K2 . . . MACHINING N 6 G0 X100+_sd . . .

Example: VAR

VAR #_inside_dm = #l2 #_length = #g3 . . . BLANK N 1 #_length=120 N 2 #_inside_dm=25 N 3 G20 X120 Z#_length+2 K2 I#_inside_dm . . . MACHINING . . .

50 NC programming

1.4 Tool programming

The designations of the tool pockets are fixed by the machine tool builder. Each tool holder has a unique T number.

In the T command (MACHINING section) you program the T number, and therefore the position to which the tool carrier rotates. The control retrieves the assignment of the tools to the turret position from the turret list of the TURRET section.

You can edit the tool entries individually, or you can call the tool list via the Set up the turret list menu item and then edit it.

Setting up a tool list

In the "Set up the turret list" function, the control provides the turret assignment as a tool list for editing.

You have the following options:

 Editing the turret assignment: Transfer tools from the database,

delete entries or move them to other positions (for soft keys see table).

 Loading the turret list of the Machine mode of operation.  Deleting the current turret assignment of the NC program.

Loading the turret list of the Machine mode of operation:

 Select "Head > Set up the turret list".

 Switch to "Special functions."

 Load the tool list of the Machine mode of operation

into the NC program.

Deleting a tool list:

 Select "Head > Set up the turret list".

 Switch to "Special functions."

 Delete all entries of the turret list.

1.4 Tool programming

Soft keys in turret list

Delete entry

Paste entry from clipboard

Cut out entry and save it in the clipboard

Show entries in the tool database

Save the turret assignment

Close the tool list. You decide whether the changes made remain in effect

The input window of the selected tool is opened for editing

HEIDENHAIN MANUALplus 620, CNC PILOT 640 51

Editing tool entries

For each entry of the TURRET section you call the Tool dialog box, enter the identification number or use the identification number from the tool database.

New tool entry

Position the cursor and press the INS (insert) key. The editor opens the Tool dialog box.

Enter the identification number of the tool.

1.4 Tool programming

Place the cursor on the tool to be loaded.

Editing the tool data

Position the cursor on the entry to be edited and press RETURN.

Edit the Tool dialog box.

Open the tool database.

Transfer the identification number of the tool.

Multipoint tools

A multipoint tool is a tool with multiple reference points or multiple cutting edges. During T call, the T number is followed by an S to identify the cutting edge.

T number.S (S=0 to 9) S=0 identifies the main cutting edge, which does not need to be

programmed.

Examples:

 T3 or T3.0: Tilted position 3; main cutting edge  T12.2: Tilted position 12; cutting edge 2

Parameters of the "Tool" dialog box

T number Position on tool carrier

ID number ID number (reference to

database)

Replacement tool Identification number of the

Replacement strategy

tool to be used when the previous tool is worn out.

 0: Complete tool  1: Secondary cutting edge or

any

52 NC programming

Replacement tools

During "simple" tool life monitoring the MANUALplus stops program run when a tool is worn out. However, the program run is then resumed and concluded.

If you use the tool life monitoring with replacement tools function, the control automatically inserts the "sister tool" as soon as the tool is worn out. The control does not stop the program run until the last tool of the tool sequence of exchange is worn out.

You can define replacement tools when setting up the turret. The "interchange chain" can contain more than one replacement tool. The interchange chain is a part of the NC program.

In the T commands, you program the first tool to be changed.

Defining replacement tools

Place the cursor on the previous tool and press RETURN.

Enter the identification number of the replacement tool (Tool dialog box) and define the replacement strategy.

When using multipoint tools, you define in the replacement strategy whether the complete multipoint tool or only the worn-out cutting edge of the tool is to be replaced by a replacement tool:

 0: Complete tool (default): If a cutting edge of the multipoint tool is

worn out, the tool will no longer be used.

 1: Secondary cutting edge or any: Only the worn-out cutting edge of

the multipoint tool is replaced by another tool or another cutting edge. Any other cutting edges of the multipoint tool that are not worn out will continue to be used.

1.4 Tool programming

HEIDENHAIN MANUALplus 620, CNC PILOT 640 53

1.4 Tool programming

54 NC programming

smart.Turn units

2.1 smart.Turn units

"Units" menu

The "Units" menu contains the unit calls grouped by the type of machining operation: Select the Units menu to call the following pulldown menus:

 Roughing  Recessing  Drilling and predrilling (C axis and Y axis)  Finishing  Thread

2.1 smart.Turn units

 Milling (C axis and Y axis)  Special operations

The smart.Turn unit

A unit describes a complete working block. This means that the unit includes the tool call, the technology data, the cycle call, the approach and departure strategies as well as global data, such as safety clearance, etc. All of these parameters are collected in one, clearly structured dialog box.

Unit forms

The unit dialog is divided into fillable forms and the forms are divided again into groups. You can navigate between the forms and groups with the smart keys.

Forms in unit dialogs

Overview Overview form with all necessary settings.

Tool Tool form with tool selection, technological settings and

Contour Description or selection of the contour to be machined

Cycle Description of the machining operation

Global View and settings of globally set values

AppDep Definition of approach and departure behavior

ToolExt Extended tool settings

56 smart.Turn units

M functions.

The Overview form

The overview form summarizes the most important settings of the unit. These parameters are repeated in the other forms.

The Tool form

You program the technological information in this form.

Tool form Tool

T Tool number (number of turret pocket). TID The identification number (tool name) is entered

automatically.

F Feed rate: Feed rate in revolutions for machining (mm/rev).

The tool is moved at the programmed value for each spindle revolution.

S (Constant) cutting speed (m/min) or constant shaft speed

(rev/min). Switchable with Type of turning GS.

Spindle

GS Type of turning

 G96: Constant surface speed The rotational speed

changes with the turning diameter.

 G97: Constant shaft speed. Rotational speed is

independent of the turning diameter.

MD Direction of rotation

 M03: Clockwise (CW)  M04: Counterclockwise (CCW)

SPI Workpiece spindle number (0 to 3). Spindle that is holding

the workpiece (only on machines with more than one spindle).

SPT Tool spindle number (0 to 3). Spindle of the driven tool.

M functions

MT M after T: M function that is executed after the tool call T. MFS M at beginning: M function that is executed at the beginning

of the machining step.

MFE M at end: M function that is executed at the end of the

machining step.

2.1 smart.Turn units

Soft keys in the tool form

Selects the tool number

Loads the feed rate, cutting speed and infeed from the technology database.

A machining operation is assigned to each unit for access to the technology database. The following description shows the assigned machining mode and the unit parameters that were changed by the technology proposal.

HEIDENHAIN MANUALplus 620, CNC PILOT 640 57

The Contour form

In the contour form you define the contours to be machined. A difference is made between the direct contour definition (G80) and the reference to an external contour definition (FINISHED part or AUXIL_CONTOUR sections).

ICP contour definition parameters

FK Auxiliary contour: Name of the contour to be machined.

You can select an existing contour or describe a new contour

with ICP. NS Contour start block number: Beginning of contour section. NE Contour end block number: End of contour section.

 NE not programmed: The contour element NS is machined

2.1 smart.Turn units

V Machine form elements (default: 0).

XA, ZA Starting point of blank (only effective if no blank was

BP Break duration: Time span for interruption of the feed. The

BF Feed duration: Time interval until the next break. The chip is

in the direction of contour definition.

 NS=NE programmed: The contour element NS is

machined opposite to the direction of contour definition.

A chamfer/rounding arc is machined:

 0: At start and end of the contour

 1: At start of the contour

 2: At end of the contour

 3: No machining

 4: Only chamfer/rounding is machined—not the base

element. (requirement: the contour section consists of a single element)

programmed):

 XA, ZA not programmed: The workpiece blank contour is

calculated from the tool position and the ICP contour.

 XA, ZA programmed: Definition of the corner point of the

workpiece blank.

chip is broken by the (intermittent) interruption of the feed.

broken by the (intermittent) interruption of the feed.

The listed soft keys are only selectable if the input cursor is in the FK field, or on NS or NE.

Soft keys in the ICP contour form

Opens the selection list of the contours defined in the program.

Shows all contours in the graphics window. Use the arrow keys for selection.

Starts the ICP editor. First, enter the desired contour name in FK.

Starts the ICP editor with the currently selected contour.

Opens the graphics window for selection of a part of a contour for NS and NE.

58 smart.Turn units

Direct contour definition parameters for turning operations

EC Type of contour

 0: Normal contour  1: Plunging contour

X1, Z1 Contour starting point X2, Z2 Contour end point RC Rounding: Radius of contour corner AC Start angle: Angle of the first contour element

(range: 0° < 90°)

WC End angle: Angle of the last contour element

(range: 0° < 90°)

BS –Chamfer/+radius at start:

 BS>0: Radius of rounding arc  BS<0: Section length of chamfer

BE –Chamfer/+radius at end:

 BE>0: Radius of rounding arc  BS<0: Section length of chamfer

BP Break duration: Time span for interruption of the feed. The

chip is broken by the (intermittent) interruption of the feed.

BF Feed duration: Time interval until the next break. The chip is

broken by the (intermittent) interruption of the feed.

2.1 smart.Turn units

Direct contour definition parameters for recessing operations

X1, Z1 Contour starting point X2, Z2 Contour end point RC Rounding: Radii in the recess base AC Start angle: Angle of the first contour element

(range: 0° < 90°)

WC End angle: Angle of the last contour element

BS –Chamfer/+radius at start:

BE –Chamfer/+radius at end:

HEIDENHAIN MANUALplus 620, CNC PILOT 640 59

(range: 0° < 90°)

 BS>0: Radius of rounding arc  BS<0: Section length of chamfer

 BE>0: Radius of rounding arc  BS<0: Section length of chamfer

The Global form

This form contains parameters that were defined as default values in the start unit. You can edit these parameters in the machining units.

Parameters on the Global form

G14 Tool change point

 No axis

 0: Simultaneously

 1: First X, then Z

 2: First Z, then X

 3: Only X

 4: Only Z

2.1 smart.Turn units

CLT Coolant

G47 Safety clearance: Indicates the distance to the current blank

SCK Safety clearance in infeed direction: Safety clearance in

SCI Safety clearance in plane: Safety clearance in the working

G60 Protection zone. During drilling and boring the protection

 5: Y direction only

 6: Simultaneous with Y (X, Y and Z axes move on a

diagonal path)

 0: Without

 1: Circuit 1 on

 2: Circuit 2 on

material at which the tool is not moved at rapid traverse.

infeed direction during drilling and milling operations.

plane during drilling and milling operations.

zone monitoring is

 0: Active

 1: Inactive

60 smart.Turn units

The AppDep form

Positions and variants of the approach and departure movements are defined in this form.

Approach: Influence the approach strategy. "Approach" parameters

APP Type of approach:

 No axis (switch off the approach function)  0: Simultaneous (X and Z axes approach diagonally)  1: First X, then Z  2: First Z, then X  3: Only X  4: Only Z

XS, ZS Approach position: Position of the tool point before cycle

call

Additionally with C-axis operations:

CS Approach position: C-axis position that is approached

before cycle call with G110.

"Approach with Y axis" parameters

APP Type of approach:

 No axis (switch off the approach function)  0: Simultaneous (X and Z axes approach diagonally)  1: First X, then Z  2: First Z, then X  3: Only X  4: Only Z  5: Y direction only  6: Simultaneous with Y (X, Y and Z axes approach

diagonally)

XS, YS, ZSApproach position: Position of the tool point before cycle

call

CS Approach position: C-axis position that is approached

before cycle call with G110.

2.1 smart.Turn units

Departure: Influence the departure strategy (also applies for Y-axis

functions).

"Departure" parameters

DEP Type of departure:

 No axis (switch off the departure function)  0: Simultaneous (X and Z axes depart diagonally)  1: First X, then Z  2: First Z, then X  3: Only X  4: Only Z

XE, ZE Departure position: Position of the tool point before the

movement to the tool change point.

HEIDENHAIN MANUALplus 620, CNC PILOT 640 61

The Tool Ext form

In this form you can program additional tool settings.

Tool Ext form Tool

T Tool number (number of turret pocket). TID The identification number (tool name) is entered

automatically.

B axis

B Angle in the B axis (machine-dependent function) CW C tilting plane angle: Position of the C axis to determine the

work position of the tool (machine-dependent function)

Miscellaneous functions

HC Shoe brake (machine-dependent function)

2.1 smart.Turn units

 0: Automatic

 1: Tighten

 2: Don't tighten

DF Additional function: Can be evaluated by the machine

XL, ZL, YLValues can be evaluated by the machine manufacturer in a

manufacturer in a subprogram (machine-dependent

function)

subprogram (machine-dependent function)

With the Advanced T change soft key you can switch quickly and easily between the Tool and Tool Ext forms.

62 smart.Turn units

2.2 Units—Roughing

"Longitudinal roughing in ICP" unit

The unit machines the contour described in the FINISHED program section from "NS to NE". Any auxiliary contour defined in FK will be used.

Unit name: G810_ICP / Cycle: G810 (see page 262)

Contour form: see page 58 Cycle form

I, K Oversize in X, Z direction (I: diameter value) P Maximum infeed E Plunging behavior

 E=0: Descending contours are not machined  E>0: Plunging feed rate for declining contour elements.

Descending contour elements are machined.

 No input: The plunging feed rate is reduced during

machining of declining contour elements by up to 50 %.

Descending contour elements are machined. SX, SZ Cutting limit (SX: diameter value)—(default: no cutting limit) A Approach angle (reference: Z axis)—(default: parallel

to Z axis)

W Departure angle (reference: Z axis)—(default: orthogonal

to Z axis)

Q Type of retraction at end of cycle

 0: Returns to starting point, first X, then Z direction  1: Positions in front of the finished contour  2: Retracts to safety clearance and stops

H Contour smoothing

 0: With each cut along the contour (within the infeed

range)

 1: Contour smoothing with the last cut (entire contour);

retracts at 45 %

 2: No smoothing; retracts at 45°

D Omit elements (see figure) O Hide undercutting:

 0: Undercuts are machined  1: Undercuts are not machined

Further forms: see page 56

2.2 Units—Roughing

Access to the technology database:

 Machining operation: Roughing  Affected parameters: F, S, E, P

HEIDENHAIN MANUALplus 620, CNC PILOT 640 63

"Transverse roughing in ICP" unit

The unit machines the contour described in the FINISHED program section from "NS to NE". Any auxiliary contour defined in FK will be used.

Unit name: G820_ICP / Cycle: G820 (see page 265)

Contour form: see page 58 Cycle form

I, K Allowance in X and Z direction (I = diameter) P Maximum infeed E Plunging behavior

 E=0: Descending contours are not machined

2.2 Units—Roughing

SX, SZ Cutting limit (SX: diameter value)—(default: no cutting limit) A Departure angle (reference: Z axis)—(default: orthogonal

W Departure angle (reference: Z axis)—(default: parallel

Q Type of retraction at end of cycle

H Contour smoothing

D Hide elements; do not machine form elements (see figure) O Hide undercutting:

Further forms: see page 56

 E>0: Plunging feed rate for declining contour elements.

Descending contour elements are machined.

 No input: The plunging feed rate is reduced during

machining of declining contour elements by up to 50 %. Descending contour elements are machined.

to Z axis)

 0: Returns to starting point, first X, then Z direction

 1: Positions in front of the finished contour

 2: Retracts to safety clearance and stops

 0: With each cut along the contour (within the infeed

range)

 1: Contour smoothing with the last cut (entire contour);

retracts at 45 %

 2: No smoothing; retracts at 45°

 0: Undercuts are machined

 1: Undercuts are not machined

Access to the technology database:

 Machining operation: Roughing  Affected parameters: F, S, E, P

64 smart.Turn units

"Contour-parallel roughing in ICP" unit

The unit machines the contour described in the FINISHED program section from "NS to NE" parallel to the contour. Any auxiliary contour defined in FK will be used.

Unit name: G830_ICP / Cycle: G830 (see page 268)

Contour form J Workpiece blank oversize (radius value)—active only if no

blank has been defined.

B Contour calculation

 0: Automatic  1: Tool to the left (G41)  2: Tool to the right (G42)

Further parameters of the contour form: see page 58.

Cycle form

P Maximum infeed I, K Oversize in X, Z direction (I: diameter value) SX, SZ Cutting limit (SX: diameter value)—(default: no cutting limit) A Approach angle (reference: Z axis)—(default: parallel to Z

axis)

W Departure angle (reference: Z axis)—(default: orthogonal to

Z axis)

Q Type of retraction at end of cycle

 0: Returns to starting point, first X, then Z direction  1: Positions in front of the finished contour  2: Retracts to safety clearance and stops

H Type of cut lines (cutting paths)

 0: Constant cutting depth: Contour is shifted by a

constant infeed value (paraxial)

 1: Equidistant cutting lines: Cutting lines run at a constant

distant from the contour (contour parallel). The contour is

scaled. HR Main machining direction

 0: Automatic  1: +Z  2: +X  3: –Z  4: –X

D Hide elements; do not machine form elements (see figure)

Further forms: see page 56

2.2 Units—Roughing

Access to the technology database:

 Machining operation: Roughing  Affected parameters: F, S, E, P

HEIDENHAIN MANUALplus 620, CNC PILOT 640 65

"Bidirectional roughing in ICP" unit

The unit machines the contour described in the FINISHED program section from "NS to NE" parallel to the contour and bidirectionally. Any auxiliary contour defined in FK will be used.

Unit name: G835_ICP / Cycle: G835 (see page 271)

Contour form

J Workpiece blank oversize (radius value)—active only if no

B Contour calculation

2.2 Units—Roughing

Further parameters of the contour form: see page 58.

Cycle form

P Maximum infeed I, K Allowance in X and Z direction (I = diameter) SX, SZ Cutting limit (SX: diameter value)—(default: no cutting limit) A Approach angle (reference: Z axis)—(default: parallel to Z

W Departure angle (reference: Z axis)—(default: orthogonal to

Q Type of retraction at end of cycle

H Type of cut lines (cutting paths)

D Hide elements; do not machine form elements (see figure)

Further forms: see page 56

blank has been defined.

 0: Automatic

 1: Tool to the left (G41)

 2: Tool to the right (G42)

axis)

Z axis)

 0: Returns to starting point, first X, then Z direction

 1: Positions in front of the finished contour

 2: Retracts to safety clearance and stops

 0: Constant cutting depth: Contour is shifted by a

constant infeed value (paraxial)

 1: Equidistant cutting lines: Cutting lines run at a constant

distant from the contour (contour parallel). The contour is scaled.

Access to the technology database:

 Machining operation: Roughing  Affected parameters: F, S, E, P

66 smart.Turn units

"Longitudinal roughing with direct contour input" unit

The unit machines the contour defined by the parameters. In EC you define whether you want to machine a normal or a plunging contour.

Unit name: G810_G80 / Cycle: G810 (see page 262)

Contour form

EC Type of contour

 0: Normal contour  1: Plunging contour

X1, Z1 Contour starting point X2, Z2 Contour end point RC Rounding: Radius of contour corner AC Start angle: Angle of the first contour element

(range: 0° < 90°)

WC End angle: Angle of the last contour element

(range: 0° < 90°)

BS –Chamfer/+radius at start:

 BS>0: Radius of rounding arc  BS<0: Section length of chamfer

BE –Chamfer/+radius at end

 BE>0: Radius of rounding arc  BS<0: Section length of chamfer

BP Break duration: Time span for interruption of the feed for

chip breaking.

BF Feed duration: Time interval until the next break. The

interruption of the feed rate breaks the chip.

Cycle form

P Maximum infeed I, K Oversize in X, Z direction (I: diameter value) E Plunging behavior

 E>0: Plunging feed rate for declining contour elements.

Descending contour elements are machined.

 No input: The plunging feed rate is reduced during

machining of declining contour elements by up to 50 %.

Descending contour elements are machined. H Contour smoothing

 0: With each cut along the contour (within the infeed

range)

 1: Contour smoothing with the last cut (entire contour);

retracts at 45 %

 2: No smoothing; retracts at 45°

Further forms: see page 56

2.2 Units—Roughing

Access to the technology database:

 Machining operation: Roughing  Affected parameters: F, S, E, P

HEIDENHAIN MANUALplus 620, CNC PILOT 640 67

"Transverse roughing with direct contour input" unit

The unit machines the contour defined by the parameters. In EC you define whether you want to machine a normal or a plunging contour.

Unit name: G820_G80 / Cycle: G820 (see page 265)

Contour form

EC Type of contour

 0: Normal contour

 1: Plunging contour

X1, Z1 Contour starting point X2, Z2 Contour end point

2.2 Units—Roughing

RC Rounding: Radius of contour corner AC Start angle: Angle of the first contour element

WC End angle: Angle of the last contour element

BS Chamfer/radius at start

BE Chamfer/radius at end

BP Break duration: Time span for interruption of the feed. The

BF Feed duration: Time interval until the next break. The chip

Cycle form

P Maximum infeed I, K Oversize in X, Z direction (I: diameter value) E Plunging behavior

H Contour smoothing

Further forms: see page 56

(range: 0° < AC < 90°)

(range: 0° < WC < 90°)

 BS>0: Radius of rounding arc

 BS<0: Section length of chamfer

 BE>0: Radius of rounding arc

 BS<0: Section length of chamfer

chip is broken by the (intermittent) interruption of the feed.

is broken by the (intermittent) interruption of the feed.

 E>0: Plunging feed rate for declining contour elements.

Descending contour elements are machined.

 No input: The plunging feed rate is reduced during

machining of declining contour elements by up to 50 %. Descending contour elements are machined.

 0: With each cut along the contour (within the infeed

range)

 1: Contour smoothing with the last cut (entire contour);

retracts at 45 %

 2: No smoothing; retracts at 45°

Access to the technology database:

 Machining operation: Roughing  Affected parameters: F, S, E, P

68 smart.Turn units

2.3 Units—Recessing

"ICP contour recessing" unit

The unit machines the contour described in the FINISHED program section axially/radially from "NS to NE". Any auxiliary contour defined in FK will be used.

Unit name: G860_ICP / Cycle: G860 (see page 273)

Contour form

DQ Number of recessing cycles DX, DZ Distance to subsequent recess in X, Z direction (DX: radius

value)

Further parameters of the contour form: see page 58.

Cycle form

I, K Oversize in X, Z direction (I: diameter value) SX, SZ Cutting limit (SX: diameter value)—(default: no cutting limit) ET Recessing depth by which one cut is fed. P Cutting width (recessing width): (default: 0.8 x tool width) E Finishing feed rate. Differing feed rate used only for the

finishing process.

EZ Period of dwell after recessing path (default: time for one

spindle revolution)

Q Roughing/finishing (process variants)

 0 (SS): Roughing and finishing  1 (SP): Only roughing  2 (SL): Only finishing

H Type of retraction at end of cycle

 0: Return to starting point

 Axial recess: First Z, then X direction

 Radial recess: First X, then Z direction

 1: Positions in front of the finished contour  2: Retracts to safety clearance and stops

Further forms: see page 56

2.3 Units—Recessing

Access to the technology database:

 Machining operation: Contour recessing  Affected parameters: F, S, E

HEIDENHAIN MANUALplus 620, CNC PILOT 640 69

"ICP recess turning" unit

The unit machines the contour described by ICP axially/radially from "NS to NE". The workpiece is machined by alternate recessing and roughing movements.

The unit machines the contour described in the FINISHED program section axially/radially from "NS to NE". Any auxiliary contour defined in FK will be used.

Unit name: G869_ICP / Cycle: G869 (see page 276)

Contour form

X1, Z1 Starting point of blank. Evaluation only if no blank has been

RI, RK Workpiece blank oversize in X and Z direction

2.3 Units—Recessing

SX, SZ Cutting limit (SX: diameter value)—(default: no cutting limit) Further parameters of the contour form: see page 58.

Cycle form

P Maximum infeed during rough turning I, K Oversize in X, Z direction (I: diameter value) RB Turning depth compensation for finishing B Offset width U Cutting direction

Q Sequence (roughing/finishing)

A Approach angle (default: opposite to recessing direction) W Departure angle (default: opposite to recessing direction) O Recessing feed rate (default: active feed rate) E Finishing feed rate (default: active feed rate) H Type of retraction at end of cycle

Further forms: see page 56

The control uses the tool definition to distinguish between radial and axial recessing.

Turning depth compensation RB: Depending on factors such as workpiece material or feed rate, the tool tip is displaced during a turning operation. You can correct the resulting infeed error with the turning depth compensation factor. The value is usually determined empirically.

defined.

 0 (Bi): Bidirectional (in both directions)

 1 (Uni): Unidirectional (in direction of contour)

 0: Roughing and finishing

 1: Only roughing

 2: Only finishing

 0: Return to starting point

 Axial recess: First Z, then X direction  Radial recess: First X, then Z direction

 1: Positions in front of the finished contour

 2: Retracts to safety clearance and stops

Access to the technology database:

 Machining operation: Recess turning  Affected parameters: F, S, O, P

70 smart.Turn units

Offset width B: After the second infeed movement, during the

transition from turning to recessing, the path to be machined is reduced by the offset width B. Each time the system switches on this side, the path is reduced by B—in addition to the previous offset. The total offset is limited to 80 % of the effective cutting width (effective cutting width = cutting width –2*cutting radius). If required, the control reduces the programmed offset width. After clearance roughing, the remaining material is removed with a single cut.

"Contour recessing with direct contour input" unit

The unit machines the contour defined by the parameters axially/ radially.

Unit name: G860_G80 / Cycle: G860 (see page 273) Contour form:

RI, RK Workpiece blank oversize in X and Z direction Further parameters of the contour form: see page 58.

Cycle form

Q Roughing/finishing (process variants)

 0: Roughing and finishing  1: Only roughing  2: Only finishing

I, K Oversize in X, Z direction (I: diameter value) P Cutting width (recessing width): (default: 0.8 x tool width) E Finishing feed rate: Differing feed rate used only for the

finishing process

EZ Period of dwell after recessing path (default: time for one

spindle revolution) DQ Number of recessing cycles DX, DZ Distance to subsequent recess in X, Z direction

Further forms: see page 56

2.3 Units—Recessing

The control uses the tool definition to distinguish between radial and axial recessing.

Access to the technology database:

 Machining operation: Contour recessing  Affected parameters: F, S, E

HEIDENHAIN MANUALplus 620, CNC PILOT 640 71

"Recess turning with direct contour input" unit

The unit machines the contour defined by the parameters axially/ radially. The workpiece is machined by alternate recessing and roughing movements. The machining process requires a minimum of retraction and infeed movements.

Unit name: G869_G80 / Cycle: G869 (see page 276) Contour form:

RI, RK Workpiece blank oversize in X and Z direction Further parameters of the contour form: see page 58.

Cycle form

P Maximum infeed during rough turning I, K Oversize in X, Z direction (I: diameter value)

2.3 Units—Recessing

RB Turning depth compensation for finishing B Offset width U Cutting direction

 0 (Bi): Bidirectional (in both directions)  1 (Uni): Unidirectional (in direction of contour)

Q Sequence (roughing/finishing)

 0: Roughing and finishing  1: Only roughing  2: Only finishing

Further forms: see page 56

The control uses the tool definition to distinguish between radial and axial recessing.

Offset width B: After the second infeed movement, during the transition from turning to recessing, the path to be machined is reduced by the offset width B. Each time the system switches on this side, the path is reduced by B—in addition to the previous offset. The total offset is limited to 80 % of the effective cutting width (effective cutting width = cutting width –2*cutting radius). If required, the control reduces the programmed offset width. After clearance roughing, the remaining material is removed with a single cut.

Access to the technology database:

 Machining operation: Recess turning  Affected parameters: F, S, O, P

72 smart.Turn units

"Parting" unit

The unit parts the workpiece. If programmed, a chamfer or rounding arc is machined on the outside diameter. At the end of cycle, the tool returns to the starting point. You can define a feed rate reduction, which becomes effective as soon as the position I is reached.

Unit name: G859_CUT_OFF / Cycle: G859 (see page 303)

Cycle form

X1, Z1 Starting point of contour in X, Z (X: diameter value) B Chamfer/rounding

 B>0: Radius of rounding

 B<0: Section length of chamfer

XE Inside diameter (pipe) I Diameter for feed-rate reduction. Limit diameter over

which traverse is at reduced feed rate. E Reduced feed rate D Maximum speed K Retraction distance after parting: Lift off the tool laterally

from the workpiece surface before retraction SD Speed limitation from diameter I up U Starting with this diameter the part catcher is activated

(machine-dependent function) Further forms: see page 56

The limit to the maximum speed "D" is only effective in the cycle. After the cycle ends, the speed limit before the cycle becomes effective.

2.3 Units—Recessing

Access to the technology database:

 Machining operation: Contour recessing  Affected parameters: F, S, E

HEIDENHAIN MANUALplus 620, CNC PILOT 640 73

"Undercutting (H, K, U)" unit

Depending on KG, the unit machines one of the following undercuts:

 Form U: The unit machines an undercut and finishes the adjoining

plane surface. Either a chamfer or a rounding arc can be machined.

 Form H: The end point of the undercut is determined from the

plunging angle.

 Form K. Only one linear cut at an angle of 45° is performed. The

resulting contour geometry therefore depends on the tool that is used.

 First, you select the Type of undercut KG, and then you

enter the values for the selected type of undercut.

2.3 Units—Recessing

Unit name: G85x_H_K_U / Cycle: G85 (see page 304)

Contour form

KG Type of undercut

X1, Z1 Contour corner point (X: diameter value)

Undercut type U

X2 End point, face (diameter value) I Undercut diameter K Undercut length B Chamfer/rounding

Undercut type H

K Undercut length R Radius in the undercut corner W Plunging angle

Undercut type K

I Undercut depth (radius) Further forms: see page 56

 The control changes parameters with the same address

letters for the other undercuts as well. Do not change these values.

 Form U: Cycle G856 (see page 309)  Form H: Cycle G857 (see page 310)  Form K: Cycle G858 (see page 311)

 B>0: Radius of rounding  B<0: Section length of chamfer

Access to the technology database:

 Machining operation: Finishing  Affected parameters: F, S

74 smart.Turn units

"ICP recessing" unit

G870 generates a recess defined by G22-Geo. The control uses the tool definition to distinguish between external and internal machining, or between radial and axial recesses.

Unit name: G870_ICP / Cycle: G870 (see page 279)

Contour form

I Oversize in X and Z direction EZ Period of dwell after recessing path (default: time for one

spindle revolution) Further parameters of the contour form: see page 58.

Further forms: see page 56

2.3 Units—Recessing

Access to the technology database:

 Machining operation: Recessing  Affected parameters: F, S

HEIDENHAIN MANUALplus 620, CNC PILOT 640 75

2.4 Units—Centric drilling

"Centric drilling" unit

The unit uses stationary tools to drill axial holes in several passes. Suitable tools can be positioned up to +/– 2 mm outside the turning center.

Unit name: G74_ZENTR / Cycle: G74 (see page 319)

Cycle form

Z1 Start point drill (starting point of hole) Z2 End point drill (end point of hole) NS Starting block no. of contour X Start point drill (starting point of hole; diameter value)—

(range: –2 mm < X < 2 mm; default: 0) E Delay (dwell time at end of hole) (default: 0) D Retraction at

2.4 Units—Centric drilling

 0: Rapid traverse

 1: Feed rate

V Feed rate reduction

 0: Without reduction

 1: At end of the hole

 2: At start of the hole

 3: At start and end of the hole

AB Spot drilling / through drilling length (distance for feed rate

reduction) P Hole depth IB Hole depth reduction value: Value by which the feed depth

JB Minimum hole depth: If you have entered a hole depth

B Retraction distance: Value by which the tool is retracted

RI Internal safety clearance: Distance for reapproach inside

decreases after every advance.

reduction value, the hole depth is reduced only to the value

entered in JB.

after reaching the respective hole depth.

the hole (default: safety clearance SCK).

"Global" form

G14 Tool change point

 No axis

 0: Simultaneously

 1: First X, then Z

 2: First Z, then X

 3: Only X

 4: Only Z

 5: Y direction only

 6: Simultaneous with Y (X, Y and Z axes move on a

diagonal path)

76 smart.Turn units

Access to the technology database:

 Machining operation: Drilling  Affected parameters: F, S

CLT Coolant

 0: Without  1: Circuit 1 on  2: Circuit 2 on

SCK Safety clearance in infeed direction: Safety clearance in

infeed direction during drilling and milling operations.

G60 Protection zone. During drilling and boring the protection

zone monitoring is

 0: Active  1: Inactive

BP Break duration: Time span for interruption of the feed for

chip breaking.

BF Feed duration: Time interval until the next break. The

interruption of the feed rate breaks the chip.

Further forms: see page 56

If X is not programmed or XS is in the range of –2 mm < XS < 2 mm, then the control drills at XS.

2.4 Units—Centric drilling

HEIDENHAIN MANUALplus 620, CNC PILOT 640 77

"Centric tapping" unit

The unit cuts axial threads using stationary tools. Unit name: G73_CENTR / Cycle: G73 (see page 316)

Cycle form

Z1 Start point drill (starting point of hole) Z2 End point drill (end point of hole) NS Starting block no. of contour X Start point drill (starting point of hole; diameter value)—

(range: –2 mm < X < 2 mm; default: 0) F1 Thread pitch B Run-in length L Retraction length when using floating tap holders (default:

SR Retraction speed (default: Shaft speed for tapping)

Further forms: see page 56

2.4 Units—Centric drilling

Retraction length L: Use this parameter for floating tap holders. The

cycle calculates a new nominal pitch on the basis of the thread depth, the programmed pitch, and the "retraction length." The nominal pitch is somewhat smaller than the pitch of the tap. During tapping, the tap is pulled away from the chuck by the retraction length. With this method you can achieve higher service life from the taps.

Access to the technology database:

 Machining operation: Tapping  Affected parameter: S

78 smart.Turn units

"Boring, centric countersinking" unit

The unit uses stationary tools to drill axial holes in several passes. Unit name: G72_CENTR / Cycle: G72 (see page 315)

Cycle form

NS Starting block no. of contour E Delay (dwell time at end of hole) (default: 0) D Retraction at

 0: Rapid traverse  1: Feed rate

RB Return plane

"Global" form

G14 Tool change point

 No axis  0: Simultaneously  1: First X, then Z  2: First Z, then X  3: Only X  4: Only Z  5: Y direction only  6: Simultaneous with Y (X, Y and Z axes move on a

diagonal path)

CLT Coolant

 0: Without  1: Circuit 1 on  2: Circuit 2 on

SCK Safety clearance in infeed direction: Safety clearance in

infeed direction during drilling and milling operations.

G60 Protection zone. During drilling and boring the protection

zone monitoring is

 0: Active  1: Inactive

Further forms: see page 56

2.4 Units—Centric drilling

HEIDENHAIN MANUALplus 620, CNC PILOT 640 79

2.5 Units—Drilling in C axis

"Single hole, face" unit

This unit machines a hole on the face of the workpiece. Unit name: G74_Bohr_Stirn_C / Cycle: G74 (see page 319)

Cycle form

Z1 Start point drill (starting point of hole) Z2 End point drill (end point of hole) CS Spindle angle E Delay (dwell time at end of hole) (default: 0) D Retraction at

 0: Rapid traverse

 1: Feed rate

V Feed rate reduction

2.5 Units—Drilling in C axis

AB Spot drilling / through drilling length – distance for feed rate

P Hole depth IB Hole depth reduction value: Value by which the feed depth

JB Minimum hole depth: If you have entered a hole depth

B Retraction distance: Value by which the tool is retracted

RI Internal safety clearance: Distance for reapproach inside

 0: Without reduction

 1: At end of the hole

 2: At start of the hole

 3: At start and end of the hole

reduction

decreases after every advance.

reduction value, the hole depth is reduced only to the value

entered in JB.

after reaching the respective hole depth.

the hole (default: safety clearance SCK).

Access to the technology database:

 Machining operation: Drilling  Affected parameters: F, S

"Global" form

G14 Tool change point

 No axis

 0: Simultaneously

 1: First X, then Z

 2: First Z, then X

 3: Only X

 4: Only Z

 5: Y direction only

 6: Simultaneous with Y (X, Y and Z axes move on a

diagonal path)

80 smart.Turn units

CLT Coolant

 0: Without  1: Circuit 1 on  2: Circuit 2 on

SCK Safety clearance in infeed direction: Safety clearance in

infeed direction during drilling and milling operations.

G60 Protection zone. During drilling and boring the protection

zone monitoring is

 0: Active  1: Inactive

BP Break duration: Time span for interruption of the feed for

chip breaking.

BF Feed duration: Time interval until the next break. The

interruption of the feed rate breaks the chip.

Further forms: see page 56

2.5 Units—Drilling in C axis

HEIDENHAIN MANUALplus 620, CNC PILOT 640 81

"Linear pattern drilling, face" unit

The unit machines a linear drilling pattern in which the individual features are arranged at a regular spacing on the face.

Unit name: G74_Lin_Stirn_C / Cycle: G74 (see page 319)

Pattern form

Q Number of holes X1, C1 Polar starting point XK, YK Cartesian starting point I, J End point (XK, YK) Ii, Ji: Distance (XKi, YKi) R Distance to first/last hole Ri Incremental distance A Pattern angle (reference is XK axis)

Cycle form

Z1 Start point drill (starting point of hole) Z2 End point drill (end point of hole)

2.5 Units—Drilling in C axis

E Delay (dwell time at end of hole) (default: 0) D Retraction at

 0: Rapid traverse

 1: Feed rate

V Feed rate reduction

 0: Without reduction

 1: At end of the hole

 2: At start of the hole

 3: At start and end of the hole

AB Spot drilling / through drilling length (distance for feed rate

reduction) P Hole depth IB Hole depth reduction value: Value by which the feed depth

decreases after every advance. JB Minimum hole depth: If you have entered a hole depth

B Retraction distance: Value by which the tool is retracted

RI Internal safety clearance: Distance for reapproach inside

RB Return plane (default: return to the starting position or to

reduction value, the hole depth is reduced only to the value

entered in JB.

after reaching the respective hole depth.

the hole (default: safety clearance SCK).

the safety clearance)

Access to the technology database:

 Machining operation: Drilling  Affected parameters: F, S

82 smart.Turn units

"Global" form

G14 Tool change point

 No axis  0: Simultaneously  1: First X, then Z  2: First Z, then X  3: Only X  4: Only Z  5: Y direction only  6: Simultaneous with Y (X, Y and Z axes move on a

diagonal path)

CLT Coolant

 0: Without  1: Circuit 1 on  2: Circuit 2 on

SCK Safety clearance in infeed direction: Safety clearance in

infeed direction during drilling and milling operations.

G60 Protection zone. During drilling and boring the protection

zone monitoring is

 0: Active  1: Inactive

BP Break duration: Time span for interruption of the feed for

chip breaking.

BF Feed duration: Time interval until the next break. The

interruption of the feed rate breaks the chip.

Further forms: see page 56

2.5 Units—Drilling in C axis

HEIDENHAIN MANUALplus 620, CNC PILOT 640 83

"Circular pattern drilling, face" unit

This unit machines a circular drilling pattern on the face of the workpiece.

Unit name: G74_Cir_Stirn_C / Cycle: G74 (see page 319)

Pattern form

Q Number of holes XM, CM Polar center point XK, YK Cartesian center point A Starting angle Wi Angle increment K Pattern diameter W End angle VD Rotation direction (default: 0)

 VD=0, without W: Figures are arranged on a full circle  VD=0, with W: Figures are arranged on the longer

2.5 Units—Drilling in C axis

Cycle form

Z1 Start point drill (starting point of hole) Z2 End point drill (end point of hole) E Delay (dwell time at end of hole) (default: 0) D Retraction at

V Feed rate reduction

AB Spot drilling / through drilling length (distance for feed rate

P First hole depth IB Hole depth reduction value: Value by which the feed depth

JB Minimum hole depth: If you have entered a hole depth

B Retraction distance: Value by which the tool is retracted

circular arc

 VD=0, with Wi: The algebraic sign of Wi defines the

direction (Wi<0: clockwise)

 VD=1, with W: Clockwise  VD=1, with Wi: Clockwise (algebraic sign of Wi has no

effect)

 VD=2, with W: Counterclockwise  VD=2, with Wi: Counterclockwise (algebraic sign of Wi

has no effect)

 0: Rapid traverse  1: Feed rate

 0: Without reduction  1: At end of the hole  2: At start of the hole  3: At start and end of the hole

reduction)

decreases after every advance.

reduction value, the hole depth is reduced only to the value entered in JB.

after reaching the respective hole depth.

Access to the technology database:

 Machining operation: Drilling  Affected parameters: F, S

84 smart.Turn units

RI Internal safety clearance: Distance for reapproach inside

the hole (default: safety clearance SCK).

RB Return plane (default: return to the starting position or to

the safety clearance)

Further forms: see page 56

"Global" form

G14 Tool change point

 No axis  0: Simultaneously  1: First X, then Z  2: First Z, then X  3: Only X  4: Only Z  5: Y direction only  6: Simultaneous with Y (X, Y and Z axes move on a

diagonal path)

CLT Coolant

 0: Without  1: Circuit 1 on  2: Circuit 2 on

SCK Safety clearance in infeed direction: Safety clearance in

infeed direction during drilling and milling operations.

G60 Protection zone. During drilling and boring the protection

zone monitoring is

 0: Active  1: Inactive

BP Break duration: Time span for interruption of the feed for

chip breaking.

BF Feed duration: Time interval until the next break. The

interruption of the feed rate breaks the chip.

Further forms: see page 56

2.5 Units—Drilling in C axis

HEIDENHAIN MANUALplus 620, CNC PILOT 640 85

"Tapping, face" unit

This unit machines a single tap hole on the face of the workpiece. Unit name: G73_Gew_Stirn_C / Cycle: G73 (see page 316)

Cycle form

Z1 Start point drill (starting point of hole) Z2 End point drill (end point of hole) CS Spindle angle F1 Thread pitch B Run-in length L Retraction length when using floating tap holders

(default: 0) SR Retraction speed (default: Shaft speed for tapping) Further forms: see page 56

Use the retraction length for floating tap holders. The cycle calculates a new nominal pitch on the basis of the thread depth, the

2.5 Units—Drilling in C axis

programmed pitch, and the retraction length. The nominal pitch is somewhat smaller than the pitch of the tap. During tapping, the tap is pulled away from the chuck by the retraction length. With this method you can achieve higher service life from taps.

Access to the technology database:

 Machining operation: Tapping  Affected parameter: S

86 smart.Turn units

"Linear tapping pattern, face" unit

The unit machines a linear tapping pattern in which the individual features are arranged at a regular spacing on the face.

Unit name: G73_Lin_Stirn_C / Cycle: G73 (see page 316)

Pattern form

Cycle form

Z1 Start point drill (starting point of hole) Z2 End point drill (end point of hole) F1 Thread pitch B Run-in length L Retraction length when using floating tap holders

(default: 0) SR Retraction speed (default: Shaft speed for tapping) RB Return plane (default: return to the starting position or to

the safety clearance)

Further forms: see page 56

2.5 Units—Drilling in C axis

Use the retraction length for floating tap holders. The cycle calculates a new nominal pitch on the basis of the thread depth, the programmed pitch, and the retraction length. The nominal pitch is somewhat smaller than the pitch of the tap. During tapping, the tap is pulled away from the chuck by the retraction length. With this method you can achieve higher service life from taps.

Access to the technology database:

 Machining operation: Tapping  Affected parameter: S

HEIDENHAIN MANUALplus 620, CNC PILOT 640 87

"Circular tapping pattern, face" unit

This unit machines a circular tapping pattern on the face of the workpiece.

Unit name: G73_Cir_Stirn_C / Cycle: G73 (see page 316)

Pattern form

Q Number of holes XM, CM Polar center point XK, YK Cartesian center point A Starting angle Wi Angle increment K Pattern diameter W End angle VD Rotation direction (default: 0)

 VD=0, without W: Figures are arranged on a full circle  VD=0, with W: Figures are arranged on the longer

2.5 Units—Drilling in C axis

Cycle form

Z1 Start point drill (starting point of hole) Z2 End point drill (end point of hole) F1 Thread pitch B Run-in length L Retraction length when using floating tap holders

SR Retraction speed (default: Shaft speed for tapping) RB Return plane (default: return to the starting position or to

Further forms: see page 56

circular arc

 VD=0, with Wi: The algebraic sign of Wi defines the

direction (Wi<0: clockwise)

 VD=1, with W: Clockwise  VD=1, with Wi: Clockwise (algebraic sign of Wi has no

effect)

 VD=2, with W: Counterclockwise  VD=2, with Wi: Counterclockwise (algebraic sign of Wi

has no effect)

(default: 0)

the safety clearance)

Access to the technology database:

 Machining operation: Tapping  Affected parameter: S

88 smart.Turn units

"Single hole, lateral surface" unit

This unit machines a hole on the lateral surface of the workpiece. Unit name: G74_Bohr_Mant_C / Cycle: G74 (see page 319)

Cycle form

X1 Start point drill (starting point of hole; diameter value) X2 End point drill (end point of hole; diameter value) CS Spindle angle E Delay (dwell time at end of hole) (default: 0) D Retraction at

 0: Rapid traverse

 1: Feed rate

V Feed rate reduction

 0: Without reduction

 1: At end of the hole

 2: At start of the hole

 3: At start and end of the hole

AB Spot drilling / through drilling length (distance for feed rate

reduction) P Hole depth IB Hole depth reduction value: Value by which the feed depth

decreases after every advance. JB Minimum hole depth: If you have entered a hole depth

reduction value, the hole depth is reduced only to the value

entered in JB. B Retraction distance: Value by which the tool is retracted

after reaching the respective hole depth. RI Internal safety clearance: Distance for reapproach inside

the hole (default: safety clearance SCK).

2.5 Units—Drilling in C axis

"Global" form

G14 Tool change point

 No axis

 0: Simultaneously

 1: First X, then Z

 2: First Z, then X

 3: Only X

 4: Only Z

 5: Y direction only

 6: Simultaneous with Y (X, Y and Z axes move on a

diagonal path)

CLT Coolant

 0: Without

 1: Circuit 1 on

 2: Circuit 2 on

HEIDENHAIN MANUALplus 620, CNC PILOT 640 89

Access to the technology database:

 Machining operation: Drilling  Affected parameters: F, S

SCK Safety clearance in infeed direction: Safety clearance in

BP Break duration: Time span for interruption of the feed for

BF Feed duration: Time interval until the next break. The

Further forms: see page 56

infeed direction during drilling and milling operations.

chip breaking.

interruption of the feed rate breaks the chip.

2.5 Units—Drilling in C axis

90 smart.Turn units

"Linear pattern drilling, lateral surface" unit

The unit machines a linear drilling pattern in which the individual features are arranged at a regular spacing on the lateral surface.

Unit name: G74_Lin_Mant_C / Cycle: G74 (see page 319)

Pattern form

Q Number of holes Z1, C1 Starting point of pattern Wi Angle increment W End angle Z2 End point of pattern

Cycle form

X1 Start point drill (starting point of hole; diameter value) X2 End point drill (end point of hole; diameter value) E Delay (dwell time at end of hole) (default: 0) D Retraction at

 0: Rapid traverse

 1: Feed rate

V Feed rate reduction

 0: Without reduction

 1: At end of the hole

 2: At start of the hole

 3: At start and end of the hole

AB Spot drilling / through drilling length (distance for feed rate

reduction) P Hole depth IB Hole depth reduction value: Value by which the feed depth

decreases after every advance. JB Minimum hole depth: If you have entered a hole depth

reduction value, the hole depth is reduced only to the value

entered in JB. B Retraction distance: Value by which the tool is retracted

after reaching the respective hole depth. RI Internal safety clearance: Distance for reapproach inside

the hole (default: safety clearance SCK). RB Return plane (default: return to the starting position or to

the safety clearance)

2.5 Units—Drilling in C axis

Access to the technology database:

 Machining operation: Drilling  Affected parameters: F, S

HEIDENHAIN MANUALplus 620, CNC PILOT 640 91

"Global" form

G14 Tool change point

 No axis  0: Simultaneously  1: First X, then Z  2: First Z, then X  3: Only X  4: Only Z  5: Y direction only  6: Simultaneous with Y (X, Y and Z axes move on a

diagonal path)

CLT Coolant

 0: Without  1: Circuit 1 on  2: Circuit 2 on

SCK Safety clearance in infeed direction: Safety clearance in

2.5 Units—Drilling in C axis

BP Break duration: Time span for interruption of the feed for

BF Feed duration: Time interval until the next break. The

Further forms: see page 56

infeed direction during drilling and milling operations.

chip breaking.

interruption of the feed rate breaks the chip.

92 smart.Turn units

"Circular pattern drilling, lateral surface" unit

This unit machines a circular hole pattern on the lateral surface of the workpiece.

Unit name: G74_Cir_Mant_C / Cycle: G74 (see page 319)

Pattern form

Q Number of holes ZM, CM Center point of pattern A Starting angle Wi Angle increment K Pattern diameter W End angle VD Rotation direction (default: 0)

 VD=0, without W: Figures are arranged on a full circle  VD=0, with W: Figures are arranged on the longer

circular arc

 VD=0, with Wi: The algebraic sign of Wi defines the

direction (Wi<0: clockwise)

 VD=1, with W: Clockwise  VD=1, with Wi: Clockwise (algebraic sign of Wi has no

effect)

 VD=2, with W: Counterclockwise  VD=2, with Wi: Counterclockwise (algebraic sign of Wi

has no effect)

Cycle form

X1 Start point drill (starting point of hole; diameter value) X2 End point drill (end point of hole; diameter value) E Delay (dwell time at end of hole) (default: 0) D Retraction at:

 0: Rapid traverse  1: Feed rate

V Feed rate reduction:

 0: Without reduction  1: At end of the hole  2: At start of the hole  3: At start and end of the hole

AB Spot drilling / through drilling length (distance for feed rate

reduction) P Hole depth IB Hole depth reduction value: Value by which the feed depth

decreases after every advance. JB Minimum hole depth: If you have entered a hole depth

reduction value, the hole depth is reduced only to the

value entered in JB. B Retraction distance: Value by which the tool is retracted

after reaching the respective hole depth.

2.5 Units—Drilling in C axis

Access to the technology database:

 Machining operation: Drilling  Affected parameters: F, S

HEIDENHAIN MANUALplus 620, CNC PILOT 640 93

RI Internal safety clearance: Distance for reapproach inside

RB Return plane (default: return to the starting position or to

"Global" form

G14 Tool change point

CLT Coolant

2.5 Units—Drilling in C axis

SCK Safety clearance in infeed direction: Safety clearance in

BP Break duration: Time span for interruption of the feed for

BF Feed duration: Time interval until the next break. The

Further forms: see page 56

the hole (default: safety clearance SCK).

the safety clearance)

 No axis  0: Simultaneously  1: First X, then Z  2: First Z, then X  3: Only X  4: Only Z  5: Y direction only  6: Simultaneous with Y (X, Y and Z axes move on a

diagonal path)

 0: Without  1: Circuit 1 on  2: Circuit 2 on

infeed direction during drilling and milling operations.

chip breaking.

interruption of the feed rate breaks the chip.

94 smart.Turn units

"Tap hole, lateral surface" unit

This unit machines a tap hole on the lateral surface of the workpiece. Unit name: G73_Gew_Mant_C / Cycle: G73 (see page 316)

Cycle form

X1 Start point drill (starting point of hole; diameter value) X2 End point drill (end point of hole; diameter value) CS Spindle angle F1 Thread pitch B Run-in length L Retraction length when using floating tap holders

(default: 0) SR Retraction speed (default: Shaft speed for tapping) Further forms: see page 56

2.5 Units—Drilling in C axis

Access to the technology database:

 Machining operation: Tapping  Affected parameter: S

HEIDENHAIN MANUALplus 620, CNC PILOT 640 95

"Linear tapping pattern, lateral surface" unit

The unit machines a linear tapping pattern in which the individual features are arranged at a regular spacing on the lateral surface.

Unit name: G73_Lin_Mant_C / Cycle: G73 (see page 316)

Pattern form

Q Number of holes Z1, C1 Starting point of pattern Wi Angle increment W End angle Z2 End point of pattern

Cycle form

X1 Start point drill (starting point of hole; diameter value) X2 End point drill (end point of hole; diameter value) F1 Thread pitch B Run-in length L Retraction length when using floating tap holders

2.5 Units—Drilling in C axis

SR Retraction speed (default: Shaft speed for tapping) RB Return plane Further forms: see page 56

(default: 0)

Access to the technology database:

 Machining operation: Tapping  Affected parameter: S

96 smart.Turn units

"Circular tapping pattern, lateral surface" unit

This unit machines a circular tapping pattern on the lateral surface of the workpiece.

Unit name: G73_Cir_Mant_C / Cycle: G73 (see page 316)

Pattern form

Q Number of holes ZM, CM Center point of pattern A Starting angle Wi Angle increment K Pattern diameter W End angle VD Rotation direction (default: 0)

 VD=0, without W: Figures are arranged on a full circle  VD=0, with W: Figures are arranged on the longer

circular arc

 VD=0, with Wi: The algebraic sign of Wi defines the

direction (Wi<0: clockwise)

 VD=1, with W: Clockwise  VD=1, with Wi: Clockwise (algebraic sign of Wi has no

effect)

 VD=2, with W: Counterclockwise  VD=2, with Wi: Counterclockwise (algebraic sign of Wi

has no effect)

Cycle form

(default: 0) SR Retraction speed (default: Shaft speed for tapping) RB Return plane

Further forms: see page 56

2.5 Units—Drilling in C axis

Access to the technology database:

 Machining operation: Tapping  Affected parameter: S

HEIDENHAIN MANUALplus 620, CNC PILOT 640 97

"ICP drilling, C axis" unit

The unit machines a single hole or a hole pattern on the face or lateral surface. Using ICP, you define the holes as well as further details.

Unit name: G74_ICP_C / Cycle: G74 (see page 319)

Pattern form

FK Finished part contour NS Starting block no. of contour

Cycle form

E Delay (dwell time at end of hole) (default: 0) D Retraction at

 0: Rapid traverse  1: Feed rate

V Feed rate reduction

 0: Without reduction

2.5 Units—Drilling in C axis

AB Spot drilling / through drilling length (distance for feed rate

P Hole depth IB Hole depth reduction value: Value by which the feed depth

JB Minimum hole depth: If you have entered a hole depth

B Retraction distance: Value by which the tool is retracted

RI Internal safety clearance: Distance for reapproach inside

RB Return plane (default: return to the starting position or to

 1: At end of the hole  2: At start of the hole  3: At start and end of the hole

reduction)

decreases after every advance.

reduction value, the hole depth is reduced only to the value entered in JB.

after reaching the respective hole depth.

the hole (default: safety clearance SCK).

the safety clearance)

Access to the technology database:

 Machining operation: Drilling  Affected parameters: F, S

98 smart.Turn units

"Global" form

G14 Tool change point

 No axis  0: Simultaneously  1: First X, then Z  2: First Z, then X  3: Only X  4: Only Z  5: Y direction only  6: Simultaneous with Y (X, Y and Z axes move on a

diagonal path)

CLT Coolant

 0: Without  1: Circuit 1 on  2: Circuit 2 on

SCK Safety clearance in infeed direction: Safety clearance in

infeed direction during drilling and milling operations.

BP Break duration: Time span for interruption of the feed for

chip breaking.

BF Feed duration: Time interval until the next break. The

interruption of the feed rate breaks the chip.

Further forms: see page 56

2.5 Units—Drilling in C axis

"ICP tapping, C axis" unit

The unit machines a single tap hole or a tapping pattern on the face or lateral surface. Using ICP, you define the tap holes as well as further details.

Unit name: G73_ICP_C / Cycle: G73 (see page 316)

Pattern form

FK see page 58 NS Starting block no. of contour

Cycle form

F1 Thread pitch B Run-in length L Retraction length when using floating tap holders (default:

0) SR Retraction speed (default: Shaft speed for tapping) RB Return plane Further forms: see page 56

Access to the technology database:

 Machining operation: Tapping  Affected parameter: S

HEIDENHAIN MANUALplus 620, CNC PILOT 640 99

"ICP boring/countersinking, C axis" unit

The unit machines a single hole or a hole pattern on the face or lateral surface. Using ICP, you define the hole positions as well as further details for boring or countersinking.

Unit name: G72_ICP_C / Cycle: G72 (see page 315)

Pattern form

FK see page 58 NS Starting block no. of contour

Cycle form

E Delay (dwell time at end of hole) (default: 0) D Retraction at

 0: Rapid traverse  1: Feed rate

RB Return plane (default: return to the starting position or to

the safety clearance)

Further forms: see page 56

2.5 Units—Drilling in C axis

Access to the technology database:

 Machining operation: Drilling  Affected parameters: F, S

100 smart.Turn units

HEIDENHAIN SW 54843x-02 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

smart.Turn and DIN PLUS programming

Intended place of operation

Legal information

New functions of software 54843x-01 and 688946-01

New functions of software 68894x-02 and 54843x-02

About this manual

Do you want any changes, or have you found any errors?

1 NC programming ..... 31

2 smart.Turn units ..... 55

3 smart.Turn units for the Y axis ..... 159

4 DIN programming ..... 181

5 Touch probe cycles ..... 427

6 DIN programming for the Y axis ..... 475

7 TURN PLUS ..... 527

8 B axis ..... 561

9 Overview of units ..... 569

10 Overview of G codes ..... 581

NC programming

Contour follow-up

1.1 smart.Turn and DIN (ISO) programming

Structured NC program

Linear and rotary axes

Units of measure

Elements of an NC program

Menu structure

1.2 The smart.Turn editor

Parallel editing

Screen layout

Selecting the editor functions

Shared menu items

1.3 Program section code

HEADER section

CHUCKING EQUIPMENT section

TURRET section

BLANK section

AUXIL_BLANK section

FINISHED section

AUXIL_CONTOUR section

FACE, REAR sections

LATERAL section

FRONT_Y, REAR_Y sections

LATERAL_Y section

MACHINING section

END code

SUBPROGRAM section

RETURN code

CONST code

VAR code

Setting up a tool list

1.4 Tool programming

Editing tool entries

Multipoint tools

Replacement tools

smart.Turn units

"Units" menu

2.1 smart.Turn units

The smart.Turn unit

"Longitudinal roughing in ICP" unit

2.2 Units—Roughing

"Transverse roughing in ICP" unit

"Contour-parallel roughing in ICP" unit

"Bidirectional roughing in ICP" unit

"Longitudinal roughing with direct contour input" unit

"Transverse roughing with direct contour input" unit

"ICP contour recessing" unit

2.3 Units—Recessing

"ICP recess turning" unit

"Contour recessing with direct contour input" unit

"Recess turning with direct contour input" unit

"Parting" unit

"Undercutting (H, K, U)" unit

"ICP recessing" unit

"Centric drilling" unit

2.4 Units—Centric drilling

"Centric tapping" unit

"Boring, centric countersinking" unit