K. O. LEE B2000, Инструкция по эксплуатации

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Instruction Manual Section Five
B. If the cutter helix is not too steep or the radius too large, mount the Universal
Toothrest on the fixture in the manner described in l-D, except that the base
of the BA940 toothrest will be placed on top of the B985H Housing and
Spindle Assembly or on the Table of the fixture similar to the set-up in Photo 46.
The teeth cutting edges will be faced up at the point of contact with the
wheel, as in Photo 47, and the spindle lock (C) tightened with one tooth
against the blade. If the cutter has a very steep helix and the radius to be
ground is rather large, it may be necessary for the toothrest to be attached
to the Wheelhead, because in this position the flute end will be in a position
to follow the toothrest blade (BY ROTATION OF THE SPINDLE ASSEMBLY)
when the fixture is rotated about the Pivot Point Vertical Axis. In either
case, if equal clearance is to be taken on both the periphery and the face of
the cutter, set the toothrest by means of the Height Gauge so that the tooth
face edge is on center with that of the Spindle Assembly. .
1. For equal clearance on the periphery and the face, set the clearance for
the tooth indexed by turning the Table Adjusting Screw (4) in a right-
hand direction, reading the degrees on the dial of the fixture base.
2. If less clearance is desired for the end or face of the cutter than for the
periphery, the cutter may be rotated by adjusting the micrometer tooth­
rest enough to equal the
ADDITIONAL amount of clearance desired over
that already taken on t h e fixture itself. (See l-D). If the toothrest is
on the Wheelhead, the cutter may also be rotated up by simply raising
the Wheelhead the required amount.
3. On tilthead grinders it is possible to create the necessary clearance on the
radius by tilting the Wheelhead. If the toothrest is mounted on this type
of head (see Photo 47), then all the clearance must be of a common
angle, and the blade end should be on center with the cutter center.
C. Continue the set-up by positioning the cutter edges against the Center Gauge,
as in l-E, so that the lines drawn along the face and the peripheral edges of
the cutter intersect the Pivot Point Vertical Axis of the Gauge.
D. Remove the Gauge and move the machine Crossfeed handwheel as described
in l-F in order to relocate the Pivot Point Vertical Axis relative to the cutter
to produce the desired convex or concave radius. Grind the cutter as described
in the same section.
E If the toothrest has been placed on the Wheelhead, read l-G.
F. Always sharpen the periphery of a milling cutter, if necessary, prior to creat­
ing the radius. This may be done as described in Part III
III. USE OF THE RADIAL GRINDING FIXTURE FOR SHARPENING
THE PERIPHERY OF A HELICAL CUTTER
A. When using the BA986 fixture, holding a cutter with a helix as in Photo 47,
position the B985H Spindle perpendicular to the axis of the grinding wheel
spindle (PARALLEL W I T H THE MOVEMENT OF THE MACHINE TABLE).
This is done by putting its swivel base on the 90 degree setting, locking the
swivel, and then swinging the fixture counterclockwise to a point that will
align the Upper Slide of the fixture with the grinding machine table. Stops
(E) are then set to hold the fixture rigidly in this position. It will be neces-
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