Patent ID: 8398455

Claim:
A method of grinding of cams of a camshaft in a clamp with two grinders, wherein the camshaft has at least two cams or pairs of cams, the cams or cam pairs each have a basic circular shape and a cam lobe, the cams or cam pairs are located diametrally oppositely to each other relative to the workpiece rotation axis, the camshaft is clamped into a workpiece holder and is rotated around its longitudinal axis, the method comprising the following steps: a) automatic clamping of the camshaft into the workpiece holder; b) simultaneously machining two diametrally opposite cams or cam pairs by grinders; c) moving the grinders relative to the camshaft parallel to the workpiece rotation axis to alignment with unmachined cams or pairs of cams; d) repeating step b); e) if needed repeating steps c) and b) until all cams or pairs of cams are machined; f) automatically unloading the camshaft; and g) determining a desired feed speed from a speed profile associated with the basic circular shape and the cam lobes for the rotation of the camshaft, and, for grinding, rotating diametrally opposite cams of the camshaft in accordance with their speed profile.