Patent ID: 9561533
Date: 2017-02-07
CPC Classifications: B21D,B30B,Y10T

Claim:
1. A machine tool for processing workpieces comprising: a stroke drive device configured to move a pressing tool along a stroke axis towards a workpiece and being positionable along a positioning axis which extends perpendicular to the stroke axis; a motorized drive including two motorized drive units which are controlled independently of each other; and wedge gear elements between the motorized drive and the pressing tool, the wedge gear elements comprising: wherein the drive-side wedge gear element and the output-side wedge gear element of each of the two gear element pairs are opposite each other at wedge faces inclined at a wedge angle with respect to the positioning axis, wherein the wedge faces of the two gear element pairs are inclined in opposing directions with respect to the positioning axis, and wherein the motorized drive units are configured to a) move the drive-side wedge gear element of at least one of the two gear element pairs relative to its associated output-side wedge gear element along the positioning axis in order to move the pressing tool along the stroke axis, and b) position the stroke drive device including the two gear element pairs along the positioning axis by moving both gear element pairs including the drive-side wedge gear elements and the associated respective output-side wedge gear elements simultaneously in the same direction along the positioning axis of the stroke drive device.