Weldon Tool Model 200 End Mill Sharpening Fixture - Manual Accessories

Page 1

Page 2

Introduction

Weldon's Model 200 air bearing end mill sharpening fixture, designed and built to Metric standards, simplifies the resharpening of peripheral cutting edges and end teeth of end mills with Inch or Metric diameter straight shanks and tools with #1, 2, 3 and 4 Morse tapered shanks. Featuring heavy-duty construction of durable cast iron, with hardened and ground

precision parts where necessary, the Model 200 is built to provide long-lasting service and quality performance. Its simplicity of set-up and ease of operation is fully explained in this easy-to-understand Operator's Manual.

Table of Contents

Page

4, 5, 6

11,

6, 17

1 1

9 0

1 1

2 3

1 1

Basic Fixture Parts

Fixture Parts Identification Assembly Instructions Set-Up Instructions Operating Instructions

Grinding Primary Relief Grinding Secondary Clearance

Controlling Reground Tool Diameters

Initial Setting of Micrometer

Resharpening to Predetermined Diameter Resharpening End Teeth Resharpening Crest-Kut End Mills Resharpening Left-Hand End Mills Sharpening Data for Conventional End Mills Sharpening Data for Crest-Kut End Mills Replacement Parts List Periodic Inspection and Service

THE WELDON TOOL COMPANY WARRANTY AND LIMITATION OF LIABILITY

The Weldon Tool Company warrants each new product manufactured and sold by it or one of its authorized dealers only against defects in workmanship and/or materials under normal service, proper installation and use. This warranty is limited to repair or replacement of verified defective products and excludes any and all implied warranty of merchantability and all risk and liability whatsoever resulting from any use of said products, including

incidental and consequential damages. The provisions of this warranty and limitation of li

ability shall not be modified in any respect except by written document signed by an

officer of The Weldon Tool Company.

CAUTION—EYE PROTECTION AND PROPER GRINDING WHEEL GUARDS MUST BE

USED DURING ALL GRINDING OPERATIONS.

1981

The Weldon Tool Co.

Page 3

Parts Identification

Code Description

Finger Bracket Assembly

Al.

Finger Blade

A2.

Finger Post

A3.

Finger Block

A4.

Finger Block Set Screw

A5.

Finger Post Set Screw

C-10 Collet Nut

C1.

Air Spindle

C2.

Air Sleeve

Rocking Head

Knurled Knob

Fl. Stop Collar F2. Stop Collar Set Screw

G1.

Spindle Knurled Ring

G2.

Spindle Knurled Ring Set Screw

Rocking Handle

11.

Rocking Head Stop Pad Rocking Head Stop

12. Assembly

Air Filter Nipple

Fixture Base

Positive Finger Control

Assembly

Positive Finger Control

Locking Screw

Finger Bracket Arm Mounting Set Screw

Finger Bracket Arm

Retaining Ring

C-4 Step Down Collet Assembly (See Fig. 8)

Sleeve Retaining Set Screw Cam Follower

Positive Finger Control Mounting Screw

Angle Setting Cam

Rocking Head Torsion

Spring Rocking Arbor

W. Y.

Screw Center

Screw Center Locking Nut

Model 200 Fixture

STANDARD PARTS FURNISHED WITH FIXTURE

Positive Finger Control

Assembly

Spindle & Sleeve Assembly C-10 Collet Nut

Collets Not Included)

( C-10 Collet Extractor C-4 Step Down Chuck

Collets Not Included)

( C-4 Collet Extractor

Air Filter

Rocking Handle Finger Height Block Finger Bracket Assembly Finger Bracket Arm

For Collets and Other Accessories Parts List, Page 17

Metric Microscope (SPECIFY) Model 200 M

Metric Micrometer (SPECIFY) Model 200

Inch Microscope (SPECIFY) Model 200 I

Inch Micrometer (SPECIFY) Model 200 I

Microscope Mounting Block Micrometer Mounting Block Master Setting Bar

2.5 mm Metric Allen Wrench 5 mm Metric Allen Wrench

Metal Carrying Case

see Replacement

NOTE: See pages 16 and 17 for order numbers of all parts.

Page 4

STEP

I :

Bolt

Rocking Head and Base Assembly to Grinding Machine

Turn angle-setting cam to 0°.

STEP II :

STEP

STEP IV : Install Spindle (C-1) in Rocking

NOTE: Remove sleeve bore protectors and save for further use.

Be sure that surface

Carefully insert back (unthreaded) end of spindle (C-1) into sleeve from side of rocking head to which positive finger control is mounted.

STEP V :

STEP

STEP VII :

Connect hose from available air supply (dry air, 75 to 100 psi) to barbed hose fitting on filter. Coupling on filter acts as air shutoff valve. Do not install unit to fixture at this time.

STEP

A. finger control (L). Tighten set screw (N) securely on flat. Arm should be in hole farthest from finger control knob to sharpen end mills exceeding 1-1/4" in diameter. For smaller tools, arm should be in hole closest to finger control knob. B. blade to a slight, smooth radius not exceeding 1/64". C.

0). Set screw (A-4) locks bracket to arm.

(

Assembly Instructions

(Fig.

Install Positive Finger Control (L).

Two metric hex head cap screws with washers are provided. Use

wrench to tighten.

III :

Install Rocking Handle (H).

of spindle and bore of

(Fig. 3)

Install Stop Collar (F-1) on Unthreaded

of spindle. Do Not Tighten Set Screw (F-2).

VI :

Install Knurled Ring (G-1) on

Tighten Set Screw (G-2) on Flat.

Connect Air Hose to

VIII

Install Finger Bracket Arm (0)

Bracket Assembly (A).

Insert finger bracket arm (0) into hole on front of positive

Carefully hand-hone or stone sharp point from tip of finger

Install finger bracket assembly (A) onto finger bracket arm

(Fig. 2)

Filter.

Assembly

(Fig. 3)

Head (D).

sleeve are

Spindle.

(Fig. 3)

and Finger

Table.

10 mm

clean.

(

End

Page 5

Set-Up Instructions

NOTE: All setting-up should be done with air off and grinding wheel not operating.

STEP I : Setting Tip of Finger on Spindle Horizontal Centerline.

Withdraw spindle to minimum front overhang. Install knurled knob (E) to stud on top of rocking head. Attach master setting bar to top of rocking head (D) in contact with

shoulder and with undercut down and

extended over finger bracket arm. Snug down

knurled knob (E).

Install finger height block to undercut endof finger is gently making contact with bottom of master bar, as shown in Fig. securely.

Loosen master bar knurled knob (E). Slide

bar with height block until block overhangs

front of rocking head about 6". Tighten knob

(E).

Loosen finger block set screw (A-4).

Position bracket so that top of finger is

under height block. It may be necessary to

Tighten

loosen finger post screw (A-5) to lower finger, and loosen screw (M) to adjust positive finger control in order to bring finger into position under block.

E. Tighten screws (A-4) and (M). Be sure

screw (A-4) is properly seated on flat of

finger bracket arm. Raise finger post until tip

surface of height block. Lock finger post in this position by tightening screw (A-5).

F. Loosen knob (E). Slide bar so that block is away from finger. Remove height block from master bar. Remove master bar from rocking head. Store safely in carrying tray.

G. Loosen screw (A-4). Slide finger bracket assembly to far end of bracket arm so it is out of the way of succeeding set-up operations.

Page 6

STEP

II :

Holding The End Mill.

NOTE: Be sure that collets and collet nut assemblies are clean before using.

Two collet nuts are provided:

C-10 Collet Nut Assembly (Fig. 5)—for

use with following diameter collets: 16.0 mm,

20.0 mm, 25.0 mm, 31.5 mm, 32.0 mm and

B. C-4 Collet Nut Assembly (Step-Down

Collet) (Fig 6)

—for use with following diam-

eter collets: 4.0 mm, 5.0 mm, 6.0 mm, 6.3 mm,

8.0 mm, 10.0 mm, 12.0 mm, 12.5 mm, and

5/8", 3/4", 7/8", 1", 1-1/4". 1/8", 3/16", 1/4", 5/16", 3/8", 1/2".

Collet Extractors

C. Collet extractors are furnished for both C-10 and C-4 size collets. Simply pushing extractor over collet taper will collapse collet enough to allow head to slip easily into or out of nut.

Page 7

D. After properly inserting collet into nut, screw nut onto spindle or adapter far enough

hold assembly in place without fully seating collet. Insert about three-quarters of end mill

firmly

shank length into collet and

hand-tighten nut.

Before inserting collet into C-10 collet

positioned within nut as shown in Figure 5.

Flat thrust washer installed on nose end of each C-4 collet must also be in place whenever inserting

STEP III :

A. Axially position spindle so that distance

from stop ring on spindle to face of sleeve is about the same as total length of end mill extending from collet. With spindle held in this

position, slide stop collar forward until contact is made snugly, but not excessively. (Fig.

STEP IV Pnsitioninn Einger to End Mill.

tacts rear face of sleeve. Slide finger bracket assembly from front of bar toward shank of end mill. If finger interferes with end mill, loosen screw control until finger is radially clear of tool on grinding wheel side. DO NOT DISTURB

PREVIOUSLY ADJUSTED HEIGHT OF FINGER. Position bracket assembly so that finger point is adjacent to end of originally relieved cutting edge where flutes and shank meet. Tighten screw (A-4). Make sure it is properly and firmly seated on flat of finger bracket arm.

B. in end mill is adjacent to finger point. Turn positive finger control knob and radially position point of finger in flute opening so that when spindle with tool is rotated toward finger, face of end mill tooth makes contact with finger about 1/64" inside cutting edge. Tighten screw (M). (Fig. 11)

TANT:

MPOR

collet into C-4 nut. (Fig. 6)

Positioning Stop Collar.

with

sleeve. Tighten collar set screw

10)

Move

spindle forward until stop collar con-

(M)

and adjust positive finger

Rotate spindle slightly so a flute opening

nut, be sure 'thrust bearing and thrust washer are

Page 8

STEP V : Selecting Primary Relief Angle.

A. Withdraw spindle until tool is off and away from finger. Spindle front stop ring should be against sleeve. Position grinding machine table so fixture is amply clear of grinding wheel spindle. Rock head slightly to raise cam fol-

lower from angle setting cam and turn cam to correct primary relief angle for tool to be sharpened. See Pages 14 and 15. (Fig. 12)

STEP VI : Adjusting Rock Stop.

A. With cam follower in contact with cam set at proper angle, adjust rock stop so that screw end is about 1/8" away from stop pad to limit rocking distance. (Fig. 13)

STEP VII : Positioning Finger to Grinding

Wheel

Mount 5" or 6" diameter cup grinding

A. wheel of A60-J7-VBE designation (or equivalent). Wheel must rotate clock-wise. With

wheel guards and eye protection in place, dress OD and cup edge, as shown in Figure

4-A. Turn off power to wheel spindle motor.

Pivot wheel head or fixture base to establish approximate 5° angular relationship as shown

in Figure 14-B and lock in this position. Adjust wheel head vertically so axis of wheel spindle is approximately same height as axis of fixture spindle.

With fixture spindle still in withdrawn position, and rocking head pivoted to primary relief angle setting, adjust grinding machine table longitudinally and laterally until tip of finger and wheel relationship is as shown in Figure

4-C. Lock longitudinal table movement when

adjustment is completed.

Page 9

Operating Instructions

STEP

I :

Grinding Primary Relief.

IMPORTANT

Before starting grinding operation, be sure that grinding wheel is properly guarded and eye

protection is in use. All machine adjustments except table cross feed should be locked.

Activate fixture spindle by installing air filter unit. Activate wheel spindle by turning on power.

Rock fixture head away from wheel until rock stop makes contact. Hold head against stop. Slowly rotate spindle while moving it forward until finger enters a flute opening. Continue forward rotating movement to permit finger to follow flute helix until spindle stop collar contacts sleeve. Finger is now at initial set point in flute area near shank, and is at end of originally relieved cutting edge.

Turn spindle to bring tooth face into contact with tip of finger and then allow rocking head to return to primary angle position. First cutting edge to be resharpened will now be close to narrow cup edge of grinding wheel, ready for primary angle grind. (Fig. 15)

While holding rear spindle stop against

sleeve

keep tooth face on finger—carefully turn grinding table cross feed hand wheel until cutting edge contacts grinding wheel and sparks are observed. At this point, turn hand

wheel to feed edge into grinding wheel about

.002" and then start grinding operation by

drawing back spindle smoothly. Contact

between tip of finger and helical tooth face will automatically rotate spindle as it is drawn

back. Very slight hand pressure to resist spindle rotation, as well as downward grinding

direction, will assure tooth face and finger contact.

E. from OD of wheel, tool edge being ground will

be out of contact with wheel just before tooth face comes off tip of finger. This assures grind

of entire length of cutting edge.

exerting slight rotational pressure to

Since tip of finger was previously set 1/64"

After grinding first cutting edge, retract spindle until tool is away from finger. Rock head to stop. Repeat forward-rotating spindle motion with finger in flute adjacent to first ground edge until stop collar makes contact. Do not change machine table cross feed setting. With finger in contact with second tooth face, allow head to return to primary angle position.

Second cutting edge will contact grinding

F. wheel at same point as first edge. Repeat grinding operation, from rear to front, by drawing back spindle smoothly, as before. Continue same procedure with each tooth until all cutting edges of end mill have been ground. Then withdraw spindle until tool is away from finger. Visually inspect all edges. (Do not remove tool from fixture spindle. Simply rotate spindle slowly while inspecting.)

If all wear lands and/or damaged areas have not been removed by first grind, feed table cross slide in another .002". Repeat operations in proper sequence on all teeth. Repeat again, if necessary. When inspection reveals all edges ground to satisfactory condition, feed cross slide in .0002/.0004" and grind all edges to final finish using a smooth, slow spindle draw-back motion.

Page 10

Grinding Secondary Clearance.

II :

STEP

Use machine cross feed control only and

A. position tool about one inch from front face of grinding wheel. Do not change any other adjustments. Rock head to raise follower from cam and turn cam to correct secondary clearance angle for tool diameter being sharpened. (

See pages 14 and 15.) Allow head to return

follower to cam and adjust rock stop to limit

rock

1/8".

Proceed to grind secondary clearance on

B. all teeth in same manner as when grinding primary relief except grinding motion can be slightly faster since surface finish is not critical.

To measure critical width of primary lands

C. during secondary grind, withdraw spindle until tool is away from finger and front stop ring is against sleeve.

Attach microscope bracket (Fig. 16) to

D. master bar and install bar to rocking head with bracket bore over cutting edges of tool. Secure bar in this position.

Insert counterbored end of microscope tube into bracket bore and push tube in until end is about 3/4" from tool. Peer through microscope and turn spindle slowly until portion of one tooth can be seen. Stop turning spindle.

Adjust scope in-or-out for focus to obtain clear view and turn spindle slightly until cut-

ting edge appears central in field of vision.

Rotate microscope tube and read width of

primary land at approximately 90° to tooth

face. (See pages

Grind secondary clearance on all teeth

and 15 for proper widths.)

until primary lands are within specifications.

Remove microscope bracket with scope tube intact to simplify set-up at next use. Remove master bar.

Page 11

Controlling Reground Tool Diameters

STEP I : Initial Setting of Micrometer.

For convenience and safety, adjust fixture

angle-setting cam to 0°. Turn off fixture spindle air and power to grinding wheel spindle.

Select cylindrical gage or end mill shank

of known diameter to use as a setting gage

(inch or metric size, depending on mic to be set). Install in fixture spindle using proper collet. Allow approximately to extend out of collet.

Firmly tighten collet nut. Withdraw spindle

until front stop ring is against sleeve.

Attach master bar with under cut down and end of bar extended about 4" beyond front of spindle. (Fig. 17)

Install micrometer mounting bracket securely to undercut end of bar. Adjust bar so that mic mounting hole in bracket is directly over setting gage. Tighten knurled knob. (Fig. 17)

Adjust mic to read approximately one-half

of gage length

the diameter of gage. Then insert mic into hole of mounting block with 0-ring on mic mounting diameter between knurled ring and block. End of mic will contact gage. Turn mic assembly so that its graduations can be conveniently read from operator's side. (Fig. 17) Turn on air to activate spindle. Hold mic body to prevent turning and, with mic spindle end in contact with gage, adjust mic thimble to read EXACTLY ONE-HALF of gage diameter.

Snugly tighten set screw which holds mic in bracket. DO NOT TIGHTEN SCREW EXCESSIVELY as overtightening will cause mic spindle to bind.

Recheck mic setting several times after mounting to make sure reading is correct. To avoid excessive mic pressure when checking, rotate fixture spindle and gage with spindle

air on. As soon as end of mic spindle contacts

setting gage, free motion of spindle will be

affected and mic reading can be noted.

Page 12

STEP II : Resharpening to Predetermined Diameter.

NOTE: Examine all cutting edges before resharpening amount of return tool to satisfactory condition. Allow

additional .005" below this predetermining final size desired

Follow proper procedures to initially grind

primary relief on all teeth until edges are in satisfactory condition. Do not change machine table cross feed adjustment after completing grind.

Withdraw fixture spindle until front stop

ring is against sleeve. Install master bar and

bracket with micrometer. (See page 9 for

instructions on initial setting of micrometer.) Axially adjust bar so that mic spindle is over

end mill about central of its flute length. Tighten knurled knob holding master bar.

With spindle air on, slowly rotate spindle

C. and carefully turn mic thimble to advance mic

diameter reduction

to judge

of dull tool

the approximate

necessary to

estimate

when

spindle toward tool. When mic spindle end

touches tool cutting edge, contact will be felt

mmediately in spindle rotation due to sensi-

tivity of spindle air bearing. Note mic reading

when contact is made. Multiply reading by

2 to establish tool diameter.

Remove micrometer mounting bracket

from master bar. Compute difference between

resharpened tool diameter and required diameter. Feed machine table cross slide toward

grinding wheel in increments not exceeding

.002" Repeat proper grinding procedure to grind all edges at each increment until tool is within .0005" of required size. Remove last

.0005" as a final finish and size grind. Install

mic mounting bracket on master bar. Confirm final size of tool before proceeding.

Remove mic mounting bracket and master bar. Prepare to grind secondary clearance. (See Page 8)

Page 13

Resharpening End Teeth

GENERAL NOTES:

For efficient use of machine setups, segregate tools into groups having common shank diameters and the same numbers of teeth.

Further subdivide these groups into centercutting and non-center-cutting types with regular, long or extra long cutting lengths.

Examine all tool ends. Those with excessively

worn or damaged corners and ends should be carefully rough end ground by hand on a

conventional emery wheel or bench grinder to remove all damage. Use care when hand grinding to avoid personal injury as well as damage to tools by overheating. Grinding wheels should be properly guarded and eye protection worn by operators.

I Set-Up and Operating Instructions.

Disconnect air and turn off power to

grinding wheel spindle.

Adjust machine table so fixture is completely away from, and to the left of, grinding wheel. (Fig. 19)

Turn angle setting cam to 0° and adjust rock stop until cam follower is locked against cam.

Mount end grinding fixture to top of head

with spindle bore toward grinding spindle.

(Fig. 19)

Remove air spindle and insert sleeve bore

E. protectors. Install and dress grinding wheel. For center cutting two or three-fluted tools and four-fluted non-center-cutting tools, a cup or saucer style wheel of any diameter up to 6" may be used. For center-cutting four-fluted tools and six or eight fluted center or noncenter cutting types, a 3" diameter flaring cup

Page 14

wheel is most suitable. Wheel rotation must be counter-clockwise and proper guarding in place around wheel.

Clean fixture spindle bore and insert proper

collet to hold shank of tool to be sharpened.

Use same collets, collet nuts and/or adapters

as used in air spindle.

Select index for tool to be ground by turning spindle (1) of fixture so set screw (6) in knurled ring (5) is in top position. Loosen lock screw (3) on top of head casting (2) and push spindle unit (4) forward into index detent

for tools with 2, 3, and 6 teeth. Pull unit (4)

outward into detent for 2, 4 and 8 teeth. Tight-

en lock screw (3) after selection is made.

DO NOT OVER TIGHTEN.

Insert total length of tool shank into collet and with spindle knurled ring set screw (6) in "up" position, rotate tool shank in collet until, by simple sighting, end tooth adjacent to grinding wheel is in horizontal position. (Fig.

20) Tighten Collet nut firmly.

Loosen rock stop and turn cam to proper end primary relief angle. (Fig. 26) Turn rock stop to lock follower against cam.

Loosen bolt holding basic fixture to machine table and pivot fixture correct amount and in proper direction to provide concavity

(dish) in end teeth. (Fig. 27) Tighten bolt

securely.

Adjust machine components vertically and laterally to bring end teeth into position for grinding. For center-cutting two and threefluted tools and non-center-cutting four-fluted tools, center of tool end should be positioned on approximate center height of grinding wheel. (Fig. 20 and Fig. 21) For four-fluted

center cutting and six or eight-fluted center

or non-center-cutting types, tool end must be positioned sufficiently above wheel center to avoid damage to adjacent tooth. (Fig. 22)

Grind end primary relief using spindle

M. index from tooth-to-tooth. Use longitudinal table stops to avoid damage to ends by travel-

ng too far, especially on center-cutting tools.

Grind end secondary clearance following

N. same procedures but with cam set at proper secondary angle. (Fig. 23 and Fig. 26) End gashes and center notches can be ground by freehand methods using a bench grinder or other simple grinder with properly dressed wheel. (Fig. 24) If preferred, secondary clearance can also be ground freehand. See Figure 26 for approximate width of primary land remaining after secondary is ground.

Page 15

Resharpening

I. Grinding Primary Relief

A. IMPORTANT—Point of finger must be stoned smooth with a radius NO LARGER THAN 1/64 OF AN INCH! (0.4 mm)

II. Grinding Secondary Clearance

Follow normal procedure (Page 8, Para-

graph A) in preparation to grind secondary.

MPORTANT—After completing A, un-

lock longitudinal movement of machine table to which fixture is fastened and move table in direction to position finger point about 1/32"

(0.8mm) AWAY FROM OUTSIDE DIAMETER

OF GRINDING WHEEL! (Fig. 28) Lock table.

C. on one tooth allowing wider - than - normal primary land to remain. Inspect land by eye to determine if width is parallel to tooth face wave with no more than 20% total variation.

D. excessively by being too

esharpening Left-Hand End Mills

Crest-Kut

Grind secondary angle

parallelism varies

End Mills

B. Grind primary relief on all teeth following same procedures detailed on Pages 3, 4, 5, 6 and 7. (See Page 15)

narrow on side of wave toward front of tool,

unlock and move machine table in longitudinal direction to slightly INCREASE distance be-

ween finger and grinding wheel. If narrow

t area is on side of wave toward shank, move table to slightly DECREASE distance.

When trial adjustments and grinds pro-

E. duce statisfactory primary land parallelism,

lock longitudinal table movement and complete secondary clearance grind (Page 8) on all teeth. (See Page 15)

III. Grinding End Teeth

A. End tooth specifications are same as shown on Page 12 except that all Crest- Kut tools with non-center-cutting ends have 5° concavity.

I .

To change from right-hand

left-hand—(See Fig. 29)

Remove finger bracket assembly from

finger bracket arm.

Remove knurled ring and stop collar from spindle and carefully remove spindle from sleeve. C.

Remove positive finger control assembly

from rocking head.

mills to

Move fixture assembly to left hand side of machine table and to left of grinding wheel. E.

Mount positive finger control on right-hand

side of rocking head.

Carefully insert spindle into sleeve from

side of head to which positive finger control is

mounted and install stop collar and knurled ring.

Install finger bracket assembly to finger

bracket arm.

Remove finger blade from finger post and

re-mount with angular side away from grinding wheel. J.

Reposition wheel guards, reverse direction of wheel rotation to counter-clockwise and reposition 5° angle between wheel and spindle.

Follow all other instructions on pages 3, 4, 5, 6, 7 and 8 to complete set-up and opera-

tions to resharpen left-hand end mills.

II. Resharpening Left-Hand End Teeth

A. Position and mount fixture to the RIGHT of grinding wheel instead of to left as shown

in Figs. 19 thru 23. Wheel rotation clockwise.

Follow all other instructions on Pages 11 and

2 to complete end grind.

Page 16

Sharpening Data for Conventional Inch and Metric End Mills

Page 17

Crest-Kut

Inch and Metric End Mills

Sharpening Data for

Page 18

Model 200-Relacement Parts List

Identification

Code

Complete Fixture

A1.

A2. A3. A4.

A5.

C2 . D.

E. Fl.

F2. G2.

11.

12. J.

L. M. N.

0. P. Q.

R. S.

V. W. Y. Z.

Description

Model 200 I (Inch) Model 200 M (Metric)

Finger Bracket Assembly (Assembly includes the

following items)

Finger Blade Finger Blade Socket Head Screw Finger Blade Washer Finger Post

Finger Block

Finger Block Set Screw Locking Pin Finger Post Set Screw

C-10 Collet Nut Thrust Bearing Thrust Washer

Air Spindle Air Sleeve

(2) Rocking Head Knurled Knob Spindle Stop Collar

Collar Set Screw Spindle Knurled Ring

Ring Set Screw Rocking Handle Rocking Head Stop Pad

Rocking Head Stop Assembly (Sold only as a unit)

Air Filter Nipple 96-745 Air Filter Coupler Air Filter Barbed Hose Fitting

Fixture Base Positive Finger Control Assembly 96-230

(Sold only as a unit) (2) Positive Finger Control

Locking Screws (2) Finger Bracket Arm

Mounting Set Screws (M10 x

1.5 x 10 lg. Flat Point) Finger Bracket Arm Spirolox Retaining Ring C-4 Step Down Collet Assembly

(Sold only as a unit) M8 Sleeve Retaining Set

Screw Nylon-Slotted Cam Follower

Set Screw– M3 x 0.5 x 6 mm Brass Plug

(2) Positive Finger Control Mounting Screw (M6 x

Angle Setting Cam Socket Head Shoulder Screw

Metric Ball Plunger

Rocking Head Torsion Spring Rocking Arbor

(2) Screw Centers (2) Screw Center Locking Nuts

(Sold together only)

-0-

Ring

C1.

G1.

x 20 Ig.)96-785

Order

No.

96-159 96-159

96-780

96-308 96-762 96-763 96-761 96-760 96-765 96-799 96-764

96-752 96-753 96-754

96-700 96-750

96-710 96-728 96-755

96-756 96-793

96-764 96-713 96-712

96-719

96-744 96-520 96-746

96-718

96-781

96-758 96-733 96-751 96-766

96-723 96-711

96-720 96-721

96-724 96-725 96-726

96-717 96-716 96-714 96-715

Page 19

OTHER MODEL 200 REPLACEMENT PARTS AND ACCESSORIES

Identification

Code Description

END TOOTH ATTACHMENT ASSEMBLY

Spindle Housing 96-790 Lock Screw Sleeve Knurled Ring Knurled Ring Screw Mounting Screws Ball Plunger Retaining Ring

MEASURING EQUIPMENT

Master Setting Bar Finger Height Block and Stud Microscope Mounting Bracket and Stud Microscope Retaining Seal Micrometer Mounting Bracket and Seal Inch Microscope Metric Microscope Inch Micrometer Metric Micrometer

ACCESSORIES

Hex Wrench-2.5 mm Hex Wrench-5.0 mm C-10 Collet Extractor C-4 Collet Extractor Sleeve Bore Protectors

COLLETS—Inch—C-4 Description

1/8"

3/16"

1/4"

5/16"

3/8"

1/2"

COLLETS—Inch—C-10 Description

5/8"

3/4" 7/8"

1-1/4"

Order

Number

96-170 96-186 96-172 96-173 96-187 96-188

Order

Number

96-194 96-195 96-196 96-197 96-198

ADAPTERS Metric

Description

#1 Morse Taper Shank Adapter-32 mm Shank #2 Morse Taper Shank Adapter-32 mm Shank

Morse Taper Shank Adapter-32 mm Shank Morse Taper Shank Adapter–Assembly

Inch

Description

#1 Morse Taper Shank Adapter-5/8" Shank #2 Morse Taper Shank Adapter-1-1/4" Shank

Morse Taper Shank Adapter-1-1/4" Shank

#3 #4

Morse Taper Shank Adapter–Assembly

Order

No.

96-240 96-792

96-764 96-791 96-793 96-764 96-794 96-795 96-751

96-734 96-735 96-736 96-737 96-738 96-742 96-741 96-740 96-739

96-768 96-769 96-759 96-767 96-800

COLLETS—Metric—C-4 Description

4.0 mm

5.0 mm

6.0 mm

6.3 mm

8.0 mm 1

0.0 mm

2.0 mm

2.5 mm

COLLETS—Metric—C-10 Description

6.0 mm

20.0 mm

25.0 mm

31.5 mm

32.0 mm

Order

Number

96-931 96-932 96-933 96-934

Order

Number

96-919 96-920 96-921 96-934

Order

Number

96-179 96-180 96-199 96-181 96-182 96-183 96-184 96-185

Order

Number

96-189 96-190 96-191 96-192 96-193

Page 20

Periodic Inspection and Service

1. After approximately each 80 hours of use, remove spindle from sleeve. Loosen sleeve retaining screw and, with fingers firmly in-

serted into both ends of sleeve bore, rotate

sleeve in rocking head about 90° (1/4 turn) to evenly distribute possible long-term wear in sleeve bore. Always turn sleeve in same direction. Tighten retaining screw and install spindle.

2. Two "0" ring seals are located at ends of outside diameter of air sleeve to seal air between housing and sleeve and insure proper operation of air spindle. Should total removal of sleeve become necessary, "0" rings must be inspected and replaced if damaged.

PROPER PROCEDURE FOR REMOVING SLEEVE: A. Remove spindle.

B_ Remove sleeve retaining screw.

Push sleeve at either end with fingers or wood

block just far enough to fully expose "0" ring at

opposite end. D. Carefully remove exposed "0" ring from sleeve

groove. E Push sleeve from end where "0" ring was

removed until sleeve is extended sufficiently

at opposite end to permit removal by hand. E Inspect seals for possible nicks, cuts,

bruises or fold-overs and discard if

damaged.

PROPER PROCEDURE FOR REINSTAL-

LING SLEEVE: A. Apply very light film of oil to outside of

sleeve and insert sleeve without "0" rings into

bore almost full depth. Stop when one

"0" ring

groove is about 1/4" exposed

from side of

head casting. B_ Cover "0" ring with light film of oil and

install carefully in exposed groove. C Gently push sleeve and "0" ring into bore

just far enough to expose ring groove at

opposite end. D. Oil and install second ring in exposed

groove. E Push on end of exposed sleeve until "0"

ring enters bore and sleeve is centered in head casting.

F. Install and tighten sleeve retaining screw. G. Carefully insert spindle into sleeve bore

and

install stop collar and knurled ring.

3. Rocking head should pivot snugly and smoothly on screw centers with no looseness or "play." If play exists, loosen screw center locking nut on side opposite positive finger control and carefully adjust screw center until all play is eliminated. Do not adjust to excessive tightness as this will cause bind

rocking head motion. Hold screw center

to prevent loss of adjustment when retightening locking nut. Loose pivot bearings can result in tapered diameters on resharpened

end

mills.

4. To compensate for normal finger point wear during extended use of fixture, check finger height often and re-adjust to center when necessary. (See page 3)

5. Periodically remove finger blade from finger post and carefully regrind pointed end to

original shape. After regrinding, stone point

tip to

a smooth radius no larger than 1/64".

6. Uncouple air filter from fixture nipple peri- odically and, after moving away from machine area, drain accumulated moisture from filter bowl by depressing valve in bottom of bowl. Do this while air pressure to filter is on.

7. Dress grinding wheel often to compensate for wear and to maintain wheel shape "A" in Figure 14 on Page 6. All dressing should be

done on

front edge of cup wheel, not on

outside

diameter.

8. Fixture should always be covered when dressing or trueing grinding wheel to minimize damage from abrasive grit. ALWAYS WEAR EYE PROTECTION WHEN DRESSING GRINDING WHEELS AND WHEN GRINDING TOOLS.

9. Periodically check grinding machine wheel spindle for radial looseness and/or excessive end-play and correct if necessary. Properly operating, smooth running machine spindle assures quality end mill resharpening.