Patent ID: 6511364
Filing Date: 2003-01-28
Classification: G05B

Abstract:
A method of grinding an eccentric cylindrical portion of a workpiece on a grinding machine with a measuring device, said method comprising the steps of:rotating said workpiece around a work spindle axis of said grinding machine, said eccentric cylindrical portion being eccentric away from said work spindle axis for effecting a planetary motion when said workpiece is rotated around said work spindle axis; feeding said grinding wheel toward said work spindle axis while reciprocating said grinding wheel toward and away from said work spindle axis in synchronism with said planetary motion, for grinding said eccentric cylindrical portion into a cylindrical profile; indexing said eccentric cylindrical portion to a predetermined angular position upon completion of a part of the grinding operation; moving a diameter measuring device from a rest position to a measuring position to engage said eccentric cylindrical portion held at said predetermined angular position; measuring the diameter of said eccentric cylindrical portion; retracting said diameter measuring device to said rest position: and resuming the feeding of said grinding wheel toward said work spindle axis while reciprocating said grinding wheel toward and away from said work spindle axis in synchronism with said planetary motion, for performing the remaining part of said grinding operation.