Method and device for producing gear plates for a continuously variable gearbox

The method of claim 21, comprising executing said coordinating so that a cross-grind of a predetermined roughness is produced on the transmission surface.

The method of claim 21 or 2, comprising coordinating rotational speed of the workpiece spindle with the pendulum-like motion.

The method of claim 21 or 2, comprising varying speed of the pendulum-like motion according to radial position of the grinding wheel on the transmission surface.

The method of claim 21 or 2, wherein said imparting of pendulum-like motion comprises imparting pendulum-like motion to the transmission plate.

The method of claim 21 or 2, wherein said imparting of pendulum-like motion comprises imparting pendulum-like motion to the grinding wheel.

The method of claim 21 or 2, wherein the apparatus comprises a second workpiece spindle and the method comprises grinding a transmission surface of each of two transmission plates in one set-up the relative pendulum-like motion being imparted for the grinding of both transmission plates in said one set-up.

Apparatus for manufacture of transmission plates for a continuously variable transmission, in which at least one pair of the transmission plates are in frictional contact at transmission surfaces thereof with a force transfer element during operation of the transmission, the apparatus comprising at least one workpiece spindle a grinding spindle, a grinding wheel rotationally drivable by the grinding spindle about an axis of symmetry of the grinding wheel for grinding the transmission surface of at least one of the transmission plates, and means for imparting relative pendulum-like motion, between the grinding wheel and the transmission plate.

Method for producing transmission plates for a continuously variable transmission in which at least one pair of transmission plates is arranged with transmission surfaces thereof opposite to one another and in frictional contact with a force-transferring element during the operation of the transmission, the method being executed on an apparatus having at least one workpiece spindle, a grinding wheel and a grinding spindle driving the grinding wheel in order to grind the transmission surface of at least one of the transmission plates, the method comprising, during the grinding of the transmission surface, imparting relative pendulum-like motion between the grinding wheel and the transmission plate so that an area of grinding migrates back and forth between an inside radius and an outside radius of the transmission surface while rotating the transmission plate by means of the workpiece spindle so that the entire transmission surface is ground, and coordinating movements of the grinding wheel and the transmission plate with one another, so that, a non-circular abrasion pattern is generated on the transmission surface whereby roughness of the transmission surface is adjusted to a predetermined extent.