K. O. LEE B2000, Инструкция по эксплуатации

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Instruction Manual
Section Five
sary to use a dial indicator on the mounted cutter or on a test arbor mounted
in the B985H in order to determine parallelism with the table travel
B. Locate the toothrest on the right edge of the cup wheel (OPPOSITE TO THE
POSITION AS SHOWN IN PHOTO 47) and attach to the Wheelhead.
1. On non-tilthead grinders, put the toothrest blade end on center with the
B985H spindle center or cutter center. Consult table II, page 12, for
amount to raise the Wheelhead.
2. On tilthead grinders, tilt the Wheelhead to the desired clearance angle and
then place the toothrest on the Wheelhead, blade end on center with the
cutter center.
C. Proceed to sharpen the periphery as described in the chapter on end mills.
IV. SHARPENING OR CREATING BALL END MILLS*
(EXPLANATION IS FOR RIGHT-HAND END MILLS)
A. Mount the cutter as described in ll-A and shown in Photo 48.
B. Position the cutter relative to the fixture Pivot Point Vertical Axis as described
in l-E through l-C.
C. A ball end mill will necessitate mounting the toothrest on the Wheelhead as
shown in Photo 47, thus allowing the helical flutes to follow the fixed blade.
The blade must be shaped to allow it into the narrow ends of the flutes In
order to clear other teeth than the one being ground, the use of a straight
wheel will usually be necessary. Place the blade at the middle of the wheel
width With a straight wheel, ail clearance will be generated by the periphery
of the wheel when a micrometer toothrest blade is placed over the wheel and
on center with it. Determine the amount to raise the blade (BY MICROMETER)
from Table I, page 11. Finally, raise or lower the Wheelhead to position the
toothrest blade at the cutter center. When a straight wheel is used, no addi­
tional clearance need be taken on the fixture or its Spindle Assembly Place
the end of the mill in relation to the toothrest so that one flute catches the
blade but does not touch the wheel. Experimentally rotate the fixture through
an arc of 90 degrees counterclockwise while holding the fixture spindle hand­
wheel (C) with clockwise pressure. The ball end mill flute should follow
around the toothrest blade without binding or bending the blade. Set fix­
ture stops (E) for a swing of slightly less than 90 degrees counterclockwise
from center. Center the cutter on the toothrest and set the machine table
stops to keep it from moving right or left.
*Fixture may be difficult or impossible to use with end mills smaller than ½" diameter and/or those
with very steep helix.
D. Sharpening Process:
NOTE: This infeed process can be used for any cutter whose radii are already
formed and whose radius can be centered on either one of the fixture slides; this
one slide becomes the only infeed moving the work relative to the wheel.
1. With the center axis line of the cutter directly in line with the high point
of the toothrest blade, move the Crossfeed in slowly until the cutter end
just avoids the wheel.
2. Start the Wheelhead motor, and with the cutter axis perpendicular to the
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