Method for grinding cams of internal combustion engine cam shafts involves machining root circle in one work step to ideal size through grinding disc

摘要

The cams have different adjoining lift contours on a common root circle (14) which is fine-ground in one work step over the entire cam width. The grinding of at least one of the two different lift contours (9,10) is carried out in a separate work step and during a machining step in which the grinding disc (18) does not reach over the entire width of the cam (2) the root circle is covered with an oversize through the grinding disc. The grinding disc first machines the first contour to the ideal size (s) and thereby covers the root circle with an oversize and after moving the disc laterally it reaches over the entire cam width whereby in a further step both the root circle and the second contour are brought to the ideal size.