Patent ID: 6053676
Filing Date: 2000-04-25
Classification: B23F,B23Q,Y10T

Abstract:
Machine tool for machining of a rotating workpiece, comprisinga tool drive,a workpiece drive for rotatably driving the workpiece,a tool rotationally driven by said tool drive in synchronization with the workpiece, for producing a toothing on the workpiece,rotation transmitters for determining rotational condition of said tool and said workpiece, respectively,electronic control means for keeping said workpiece drive and said tool drive in synchronization by respectively associated of said rotation transmitters,a positioning motor associated with one of the two drives for influencing position of phases of the two drives, anda sensor element provided in association with one of the two rotation transmitters, and means providing said sensor element to be rotatably adjustable with respect to a stator of a corresponding one of the drives.