B - Operations – Transporting – 24 – B
Patent
B - Operations, Transporting
24
B
342/4, 51/88
B24B 5/36 (2006.01) B24B 17/00 (2006.01) B24B 19/12 (2006.01)
Patent
CA 1181511
ABSTRACT OF THE DISCLOSURE 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 volocity 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.
414108
Litton Industrial Products Inc.
Swabey Ogilvy Renault
LandOfFree
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