hitachi seiki VS50, VS 60 Specification Manual

VERTICAL MACHINING CENTER

VS50/60

INSTRUCTION MANUAL

SPECIFICATIONS

SEIKI-SEICOS Σ16M/18M

Version 1.01

BS-2782-1-0221-E-1-01

Introduction

Thank you for your having purchased the machine, favoring our product lines for your use. This manual contains fundamental information on the specification. Please read and fully understand the contents for your safe machine operation. In particular , the contents of the items concerning safety in this manual and the descriptions on the “caution plates” attached to the machine are important. Please follow the instructions contained and keep them always in mind to ensure safe operation. The reference record papers on adjusting setting values such as a parameter list are attached to the machine unit and enclosed in the packing. These are necessary for maintenance and adjustment of the machine later on. Please keep them safely not to be mislaid. The design and specifications of this machine may be changed to meet any future improvement. As the result, there may arise some cases where explanations in this manual could become partly inconsistent with the actual machine. Please note this point in advance. In this manual, items on the standard and optional specifications are handled indiscriminately. Please refer to the “delivery note” for the detailed specification of your machine confirmation.

1. INTRODUCTION .................................................................................. 1 - 1

1-1 General Precautions..........................................................................................................1 - 2

1-1-1 Precautions on Machine Operation ........................................................................... 1 - 2

1-1-2 Electric Equipment and NC Unit ................................................................................ 1 - 6

1-1-3 Weights and Measures Table .................................................................................... 1 - 7

2. OUTLINE AND FEATURES OF MACHINE ......................................... 2 - 1

2-1 Construction of Machine.................................................................................................... 2 - 1

2-1-1 Bed ............................................................................................................................ 2 - 1

2-1-2 Column ...................................................................................................................... 2 - 1

2-1-3 Spindle Head..............................................................................................................2 - 1

2-1-4 Table .......................................................................................................................... 2 - 1

2-1-5 Feed Box ................................................................................................................... 2 - 2

2-1-6 Slideway .................................................................................................................... 2 - 2

2-1-7 Automatic Tool Changer (ATC) .................................................................................. 2 - 2

2-1-8 Splash Cover ............................................................................................................. 2 - 2

2-2 Name of Component Units ................................................................................................ 2 - 3

2-3 Specifications of Machine.................................................................................................. 2 - 4

2-3-1 VS50 Machine Specifications..................................................................................... 2 - 4

2-3-2 VS60 Machine Specifications..................................................................................... 2 - 7

2-3-3 Main Accessories .................................................................................................... 2 - 10

2-4 NC Unit Specifications..................................................................................................... 2 - 12

2-5 Main Dimensions Diagram .............................................................................................. 2 - 19

3. SIZE NECESSARY FOR OPERATION................................................ 3 - 1

3-1 Strokes and Machine Reference Point ..............................................................................3 - 1

3-2 Table Dimensions and Working Area Diagram..................................................................3 - 3

3-3 Machining Area and ATC Interference Range ....................................................................3 - 5

3-4 Tool Shank ......................................................................................................................... 3 - 9

3-4-1 Tool Shank (BT-40) and Pull-stud Bolt (12000min-1)................................................. 3 - 9

3-4-2 Tool Shank (BT-50) and Pull-stud Bolt (4500/10000min-1)...................................... 3 - 10

3-4-3 Two-face Clamped Tooling (Spindle Speed: 19,000 min.-1 or More) ....................... 3 - 10

3-5 ATC Tool Limit (BT40)...................................................................................................... 3 - 11

3-6 Spindle Torque/Output Diagram ......................................................................................3 - 14

1. INTRODUCTION

We are obliged to you for using our machining center. This manual describes the installation, operation, daily maintenance and inspection, etc. of this

machine in order for you to be able to properly operate the machine and make full use of its performance. Prior to its installation and test run, read this manual thoroughly to understand the contents described for handling the machine.

To secure safe operation, follow the safety precautions described in this manual and the instructions given on the warning signs attached to the machine.

For your general understanding of this machine, the following documents are provided other than this instruction manual. Refer to them when necessary.

1. Programming Manual

2. Parts List

3. Instruction Manual for OPERATION

4. Instruction Manual for MAINTENANCE

5. Electric Circuit Diagrams

6. Instruction Manual for NC UNIT (PROGRAM, OPERATION, MAINTENANCE)

Such records of adjustment and setting values as “Parameter List” are included in the package of the machine. Be sure to keep these documents, which is necessary for maintenance and adjustment of the machine from now on.

Hitachi Seiki pursues a policy of a continuing improvement in design and performance of its product. The right is therefore reserved to vary specification, and as a result, the contents of these documents may partly differ from your machine.

1 - 1

1-1 General Precautions

These general precautions is quite useful for operators to create good working environment against accidents and to increase productivity.

1. Be sure to put safety goggles on.

2. Be sure to put safety shoes on.

3. Operate with proper dressing, such as putting a utility cap on, fixing the sleeves and the cuffs of working clothes.

4. Don’t operate the machine with gloves.

5. Make clean and neat environment by lighting up and keeping dry around the machine. Also don’t put any obstacles.

6. Remove dust and chips on the machine, high voltage control panel and NC unit. Also remove them on the floor. Avoid using compressed air as much as possible for these cleanings.

7. Use a strong enough table to be put around the machine, and take anti-sliding measures on the surface.

8. Don’t put tools, workpieces, and other items on the machine as well as on the moving parts of the machine.

9. Don’t give any remodeling to the machine without our permission.

10. About the Machine with Through Coolant <1> For the spindle core through specifications, be sure to use our specified through pull stud when discharging the coolant. If you use other pull stud, it could cause a trouble. <2> For the DIN through specifications, be sure to use our specified DIN through tool holder when discharging the coolant. If you use other pull stud, it could cause a trouble.

1-1-1 Precautions on Machine Operation

Before trial run, read this manual carefully and understand, the contents well. Witness of our operation instructors is most recommendable.

MAINTENANCE

1. An operator and maintenance personnel should read the precautions on the caution plate fitted to the machine and observe them.

Don’t stain, damage or remove the caution plate. If the caution plate becomes hard to read, contact Hitachi Seiki.

2. Close all the doors and covers except when adjusting work is made. As for the doors of the NC unit and the power control cabinet, be sure to close them with

special care.

3. Don’t remove or modify the limit switches for the stroke end, for the traveling axes and the mechanism, or the electric circuit employed for safety.

4. Use regular wrenches and spanners for adjusting or repairing work.

1 - 2

LUBRICATION

Since lubrication oil exerts a great influence on machine durability and accuracy, extreme care must be taken for maintenance of the whole lubricating system. Perform the following check and maintenance precautions.

1. Fill with the oil specified in the Maintenance manual to the specified amount.

2. Clear the oil port in advance and be careful that foreign substances such as dust, water and chips do not enter the tank.

3. Check the bottom of the oil jug to see if there is any debris, water or cutting chips, etc. insides Sufficient care is required to distinguish the oil jug by appropriate color coding and fixed stock location to avoid mixed use of different kinds of oil.

4. Check the oil periodically and if foreign substances are found, clean the inside of the tank promptly and replace it with new oil.

Don’t use all of the oil, even from a new can. This is necessary in order to remove water and sediment etc.

(with option device)

5. Although low levels in the lubrication oil tank are detected by a float switch that flashes an alarm signal, check to see if discharging is normal. There are two possible problems:

Oil in the tank decreases extraordinarily fast, or it is decreasing too slowly.

6. As for the suction filter fitted to the pump and the in-line filter in the piping circuit, replace them with new ones once a year as a rule.

7. Air in the main lubrication pipes has been bled when the machine is delivered, but when the piping is removed for maintenance, bleed air completely at the time of reassembly and operate the machine after checking the state of discharging at the end.

COOLANT

The soluble cutting fluid is decomposed due to factors such as mixture of lubrication oil and propagation of micro-organisms that lower cutting and rust prevention efficiency. This causes various troubles to occur.

When using-soluble cutting fluid, care must be taken of the following points.

1. When selecting soluble cutting fluid, carefully consider lubrication, infiltration, rust

prevention, bubble prevention, reparability against oil and safety needs.

2. Before operation starts and after operation ends, not only remove chips, but also wipe off

soluble cutting oil adhered to each slideway, the rotating parts, the saddle and cross-slide of the machine and then be sure to apply lubrication oil thinly to those parts.

3. Replace soluble cutting fluid immediately if it becomes vitiated.

1 - 3

4. Remove the covers every half year and clean each slideway, X, Y, Z axes ball-screws, each

limit Switch and feed motors etc.

5. As soluble cutting oil is considered for rust prevention, it may be no problem when the

workpiece is wet. However, when dry, it is apt to rust.

Therefore, it is recommendable to apply rust preventive oil before the workpiece dries after

finished machining.

6. Since soluble oil is alkalescent and has a strong degreasing action, the operator is apt to

develop dermatitis.

Therefore, the operator should take appropriate precautions.

7. As for the diluting method and soluble cutting fluid, diluting water they are different

depending on the type of soluble cutting oil, so use it in accordance with the recommendations of the cutting fluid manufacturer.

8. Since there are instances where extensive micro-organisms are detected in industrial

water, it is recommendable either to check it before use as water for dilution or to use service water.

9. Do not use a chemical solution type (synthetic type) in water-soluble cutting agents,

because it causes detachment of coating and affects sealing materials and resin materials adversely.

10.The influences of difference kinds of oil on coolant are as follows: Carefully monitor the

condition the coolant fluid.

Different kinds of oil

Lubrication oil

Rust preventive oil

Mixture (Emulsification)

Nutritive source of micro-organism

Seal due to surfacing

Instabilization of liquid

Adhesion to machine

Propagation of bacilli

Density abnormality

Propagation of bacilli

Lowering of density Lowering of pH

Formation of state of aversion

Petrifaction, rust & others

1 - 4

OPERATION

1. Be aware of the position of the push button for emergency stop so that the operator may be able to press it instantly.

2. As for the operation of the machine, proceed in accordance with the procedure described later.

3. During operation, keep hands away from the rotating sections and movable sections.

4. When disposing of chips that wound round tooling or fell onto the table, it is dangerous to grasp and pull them. Further, when disposing of chips, be sure to do it after stopping the machine.

5. When adjusting the position of the coolant nozzle, do it after stopping the machine.

TOOL SETTING

1. When setting up tools, stop a spindle as well as the feed in each axis.

2. Set the tools within the specified lengths and diameters.

3. When setting a tool to the holder, be sure to set outside the machine. If set in the machine, the spindle may rotate.

OPERATION FINISH

1. After operation of the machine is over, be sure to switch the power OFF in the prescribed order, clean the machine and apply rust preventive oil to each section of the machine such as the slide ways.

When soluble cutting fluid is used, perform these jobs with special care.

1 - 5

1-1-2 Electric Equipment and NC Unit

When operating the machine or carrying out maintenance checks, pay special attention to the following points, concerning the electric equipment and NC unit.

1. Do not give shocks to the NC unit, power control cabinet and other machine parts.

2. For the primary wiring of the machine, use the cable size specified in the operation manual. Do not use an excessively long cabtire cable.

When the primary wiring has to be put on the floor, protect it with a cover against damage by cutting chips and other sharp objects.

3. While test running the machine, be sure the setting parameter of the NC unit coincides with the parameter sheet attached to the machine.

4. Do not change the current set values of thermal relays in the power control cabinet, various control knobs or the parameter data.

5. Do not apply excessive force, e. g. bending force etc., to the connector portion of plugs, flexible conduits (tubes) or cabtire cables etc.

6. When carrying out maintenance checks on the electric equipment, turn off the EMERGENCY STOP button on the operation panel, the power of the NC unit, the main switch of the power control cabinet and the power switch installed in your factory, in this order.

Start maintenance work after making sure that these switches are turned off. Lock the power switches in the OFF state as much as possible or put up warning signs. In additions, place a “DO NOT TOUCH !” tag near the operation buttons of the machine to forbid other personnel from operating the machine.

7. Handle electric equipment of the machine with particular care and exercise extreme caution not to allow the machine to get wet.

8. For equipment inside the power control cabinet, use those specified by Hitachi Seiki. Use always specified fuses. Never use fuses with a higher capacity.

9. Never leave the control cabinet door open, because direct sunshine or camera’s strobe flash rays may enter the cabinet and damage internal equipment.

10. In case of turning on the power again, execute power on went by equal to or more than two seconds after power turned off. If the power is turned on during discharge from control devise by power off, pay attention to the alarm of the machine is displayed some time, due to normal process is not available.

1 - 6

1-1-3 Weights and Measures Table

(Metric and English Conversion)

1. Liner measure 1m (meter) = 39.37 inches = 3.2808 feet = 1.0936 yards 1cm (centimeter) = 0.3937 inch 1mm (millimeter) = 0.03937 inch

2. Square measure

(square meter) = 10.764 square feet = 1.196 square yards

1cm

(square centimeter) = 0.155 square inch

1mm

(square millimeter) = 0.00155 square inch

3. Cubic measure

(cubic meter) = 35.315 cubic feet = 1.308 cubic yards

= 264.2 U.S. gallons = 220.0 U.K. gallons

1• (liter, cubic decimeter) = 0.0353 cubic foot = 61.023 cubic inches

= 0.2642 U.S. gallon = 1.0567 U.S. quarts = 0.2200 U.K. gallon = 0.02745 bushel

1cm

(cubic centimeter) = 0.061 cubic inch

4. Weight 1 ton (metric ton) = 0.9842 U.S. (long) ton = 2204.6 pounds

= 1.1023 U.K. (short) ton

1 kg (kilogram) = 2.2046 pounds = 35.274 ounces avoirdupois

5. Others 1 kgf/cm

(kilogram force per square centimeter) = 14.223 pounds per square inch

= 0.098 Mpa (Mega Pascal)

1 kg-m (kilogram-meter) = 7.233 foot-pounds

1 - 7

2. OUTLINE AND FEATURES OF MACHINE

2-1 Construction of Machine

As shown in Fig. 2-1, the standard configuration of this machine consists of the bed, column, table, saddle, spindle head, feed boxes and automatic tool changer (ATC).

2-1-1 Bed

The bed has been shaped so as to facilitate disposal of cutting chips. It is provided with grooves of chip pan on both sides of table traverse. The two grooves are provided with flow jet coolant as standard specifications. Two oil conveyors also can be provided as option. Chips and coolant are transported from the machine left side to the right side outlet, and collected in the chip box on the coolant tank on the right side of the bed. The bed has two guides to ensure smooth movement of the table. Bed also has been designed to fit a splash guard on its circumference in order to protect the surroundings of the machine from being contaminated by cutting fluid and cutting chips. Proximity of an operator and the table is kept at close range.

2-1-2 Column

Column, taking the shape of a wall type double column, is fixed on the rear and both sides of the head by bolts, the column supports the saddles with two horizontal guides on the top, and the saddles supports the spindle head with two vertical guides. The saddles, as they traverse on the column, excellent in rigidity, stability of accuracy and high velocity.

2-1-3 Spindle Head

Spindle head takes a ram form to assure flexible movement, which shift up and down with two stripes on guides provided between the saddle and the head. As to the structure inside the head, the spindle and the tool locking cylinder are arranged in the body. AC built-in motor features low oscillation and high reliability of the spindle rotation.

2-1-4 Table

The table, which is put on the bed, is smoothly driven by a ball screw set in the center of the guides. Nothing is installed around the table except working surface, which enables coolant and cutting chips to drop without difficulty. Four T-grooves and a straight groove are designed so that they may be used as a reference for jig fixtures. Since a table base size is wide enough compared with a table size, an overhang amount is minimized when the table moves in a traverse direction.

2 - 1

2-1-5 Feed Box

Feed boxes are provided at three spots which are on the front part of the bed, at the left end of the column top and on the top of the saddle. Each driving section has an AC feed motor, which drives the ball screw directly by the precisely machined coupling. The ball screw is isolated from cutting chips and coolant, and maintains longtime accuracy free from maintenance by the self-lubrication system adopted.

2-1-6 Slideway

Each slideway for axial feed uses a precision ball guide having a special structure. Therefore, it is provided with superior dynamic performance which allows both low noises and power saving. Self-lubrication system is adopted to these guides in the same way as the ball screws, which attains maintenance free guides. Since an appropriate pre-load is given to the bearing of guideways in a radial direction, sufficient rigidity is secured even for heady duty cutting.

2-1-7 Automatic Tool Changer (ATC)

The ATC, which is mounted onto the column base, can change tools at the up end position of the head (reference point). High rigidity cams are adopted for the twin arms driving, and the spindle tool lock and the twin arm action are synchronized, which realizes top level high speed ATC. A tool magazine can store 20 tools as a standard. Due to employment of a fixed tool address call system, a secure tool change can be done by simple operations There occurs no interference to workpieces at the time of tool exchange.

2-1-8 Splash Cover

Cover structure which seals the machine until the ceiling is equipped as the standard specification so that coolant mist produced by high speed operation may not leak outside the machine. The front door also opens widely until the ceiling, which facilitate crane entering at the time of setting up.

2 - 2

2-2 Name of Component Units

2 - 3

11 Saddle 10 Column

9 Tool changing window 8 ATC operation panel 7 Coolant tank 6 Bed 5 Table 4 Main operation panel 3 Head 2 ATC 1 Main cooling device

No. Name

Fig.2-1 Name of component units

2-3 Specifications of Machine

2-3-1 VS50 Machine Specifications

Specifications Unit VS50-50 VS50-40

Stroke

*Optional specifications

1) X-axis stroke (Spindle head right & left)

2) Y-axis stroke (Table crosswise)

3) Z-axis stroke (Spindle head up & down)

4) Distance from the table surface to the spindle nose

5) Distance from the column front to the spindle center line Table

1) Table working surface

2) Max. table loading capacity

3) Shape of table surface Spindle

1) Spindle speed

Standard spec. /High power spec. *High speed spec.

min

mm mm mm

-1

{rpm}

-1

{rpm}

1000 (40”)

510 (20”)

450 (17.5”)

150 ~ 600

640

1120 × 510

750

18mm T-slot 4 lines

15~ 4500 35~ 12000

35~ 10000 35~ 20000

2) Spindle speed change

3) Spindle hole taper

4) Spindle bearing ID

5) Max. spindle torque

Feed rate

1) Rapid traverse

rate

2) Cutting feed rate

3) Jog feed rate

Standard spec. /High power spec. *High speed spec. Standard spec. *High speed spec. *High power spec.

(X,Y) (Z)

mm Nm {kgfm} Nm {kgfm} Nm {kgfm}

mm/min mm/min mm/min mm/min

Stepless

7/24 Taper 7/24 Taper

No.50 No.40

φ100 φ75

φ110 φ65

298 {30.4} 135 {13.8} 233 {23.8} 95.4 {9.7}

 166{16.9}

40000 24000

1 ~ 15000

0 ~ 5000 (21 steps)

2 - 4

Specifications Unit VS50-50 VS50-40

Automatic tool changer

1) Tool shank *

2) Pull-stud

3) Tool storage

capacity

4) Max. tool diameter

( ) : When no adjacent tool exists.

5) Max. tool length

6) Max. tool weight

7) Tool selection

system

Automatic pallet changer

1) No. of pallet

For 20 tools *For 30 tools

pcs

MAS 403-BT50 MAS BT40

DIN 50/CAT50 DIN 40/CAT50

MAS P50-0

MAS P50-45

° MAS P40T-1

(45

°)

° MAS P40T-1

(30

°)

20 30

φ110

(

φ180)

300

15 8 Unidirectional random call Bidirectional random call

2) Pallet change system

3) Pallet working surface

4) Max. pallet loading capacity Motor

1) Spindle driving motor

2) Feed motor

3) Coolant motor

Standard spec.

*High speed spec.

*High power spec.

X, Y Z Flood *Flow jet *Gun

AC kW

AC kW AC kW

AC W AC W AC W

Parallel & swing ARM

1000 × 450

400

11kW (10min)

18.5 (25%ED) 7.5kW (30min) 11 (CONT) 5.5kW (CONT)

25kW (30min) 18.5kW (30min)

22kW (CONT) 15kW (CONT)

22kW (25%ED)

 18.5kW (CONT)

3.8

180 - 2P

400 - 2P × 2