MIL-G-80048C
3.4.3 Regulating wheelhead assembly. The regulating wheelhead assembly
shall include a regulating wheel, spindle, wheel dresser, and driving
mechanism. The wheelhead shall be either fixed or adjustable, according to
machine design. When an adjustable regulating wheelhead is incorporated,
unless otherwise specified, (see 6.2.1), manual infeed shall be -provided.
Manual adjustment shall be controlled by a handwheel with graduated dial.
The tilting and swiveling action shall be adjustable, with positive
clamping. A scale, graduated in degrees, shall be provided for measuring
tilt. Means for correcting taper shall be provided in the wheelhead base.
The regulating wheel spindle drive
3.4.3.1 Regulating wheel spindle.
shall include a drive motor, belt and pulley arrangement, spindle speed
adjustment system, and a dial type speed indicating device, calibrated in
Means for
revolutions per minute over the applicable speed range.
adjusting belt tension shall be provided.
3.4.3.2 Regulating wheel dresser. The regulating wheel dresser shall be
attached to the wheelhead and unless otherwise specified (see 6.2.1), shall
be manually operated. A micrometer type indicator or dial, graduated in
0.001 inch increments, shall be provided for designating movement. Range
of dressing shall be not less than O to 1 inch bar movement for Size 1
machines, and not less than O to 1-3/4 inches bar movement for Size 2, 3
and 4. When specified (see 6.2.1), the dresser shall be capable of contour
dressing as well as straight dressing.
3.5 Workrests. Each workrest shall be machined, and shall be mounted on
One
the bed or on the lower slide of the regulating wheelhead base.
workrest shall be provided for thrufeed operation, and one for infeed
When the design of the machine includes only one workrest,
operation.
necessary interchangeable components for infeed grinding and thrufeed
grinding shall be furnished.
3.6 Sizes and capacities. The sizes and capacities of the machine shall
Options shall be furnished only when
meet the requirements of table I.
specified.
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