Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1982-01-29
1984-04-24
Whitehead, Harold D.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51101R, B24B 500
Patent
active
044439768
ABSTRACT:
A cylindrical grinder for effecting stock removal from a cam surface on a workpiece, the cam surface including a base portion, a nose portion and flank portion joining the base and nose portions, the nose portion having a smaller radius of curvature than the base portion and being more distant from the axis of rotation of the cam than the base portion, comprising means for supporting the workpiece for rotation about a predetermined axis, means for defining a selected velocity profile for each revolution of the cam, the velocity profile having a plurality of acceleration/deceleration segments whereby the velocity of the surface of the cam at the grinding location is selectively varied, stock removal means including a grinding wheel and grinding wheel feed control means, the grinding wheel feed control means including rough feed control means having means for infeeding the grinding wheel at a plurality of sequentially operable feeds, finish control means having means for infeeding the grinding wheel at a plurality of sequentially operable feeds, means for sensing the presence of a selected point on the cam surface at a predetermined angular location, and means for actuating one of the rough and finish feed control means at the first of the plurality of feeds when the selected point is sensed and for sequentially actuating each of the remaining plurality of feeds when the selected point is sensed each of the next remander of the same plurality of revolutions.
REFERENCES:
patent: 4214309 (1980-07-01), Koide
patent: 4299061 (1981-11-01), Parnum
patent: 4343114 (1982-08-01), Tourasse
Litton Industrial Products Inc.
Smith Spencer T.
Whitehead Harold D.
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