Instruction Manual Section Five
PHOTO 71 PHOTO 72
A. Set-up for sharpening the periphery:
1. Position the cup wheel as shown in Photo 71. Mount a wheel guard and
dress the wheel (SEE CHAPTER 3).
2. Mount the fixture at the right end of the table as shown. Fixture swivels
(horizontal and vertical) should be set at '0'.
NOTE:
Precise measure
ment of the fixture swivels is not necessary. It is not possible to grind a
taper since the spindle remains at a constant distance relative to the wheel
at any machine Crossfeed setting.
3. Mount the end mill in the fixture spindle using the appropriate size of
bushing
(B982B1; B⅞; B¾; B⅝; B½; B⅜; and B
3
/
16
). Photo 72 shows the
standard equipment. A 3/16 inch hex wrench is provided to tighten the
socket screw in the spindle onto flat of 1 " ,
⅞", ¾"
end mills through the
bushing holes. Use the 1/16 inch hex wrench to tighten the socket screws
in the
⅝, ½, ⅜",
3
/
16
" bushings to the end mill shank. Then tighten the
bushings into the spindle end by turning down the
3
/
16
" socket screw in
the spindle onto the recessed bushing shank In a similar manner, lock
a 1
¼"
shank into the spindle by set screw when no bushing is used. DO
NOT TIGHTEN THE SET SCREW TOO MUCH — DISTORTION OF
THE TUBE END MAY RESULT. The spindle for the bushing model
(B982-33)
has a bore of 1
¼
inches, and can accommodate end mills with
this size of shank.
When mounting cutters with the 5C collet unit, insert the collet first
in the adapter sleeve so that the sleeve key finds the slot in the collet.
Turn
the collet draw tube sufficiently to catch the threads on the collet,
so that the collet is being drawn into the adapter sleeve. Mount the cutter
shank into the collet and continue to draw the collet into the fixture
until it firmly holds the cutter shank. Now check the 0 D, of the cutter
for run-out with a dial indicator. Excess run-out can be corrected by
loosening the collet sufficiently to rotate the cutter, or by tapping it
lightly on the back of a tooth.
4. Position the toothrest relative to the wheel by first setting the Toothrest
Adjustment Collar
(B982CC)
at '0' degrees opposite the casting housing
mark. Using the machine Crossfeed, head elevation, and cross movement
of the Toothrest Arm, position the micrometer blade at the right edge of
the cup wheel and the blade end at the approximate center height of the
—93—
