Patent ID: 6834539
Filing Date: 2004-12-28
Classification: B23Q,Y10T

Abstract:
A rotary machine element for chucking workpieces or tools, the rotary machine element comprising:at least one functional part adapted to perform at least one of clamping, aligning and centering of a workpiece or a tool and to perform movements into stop positions correlated with at least one of clamping, aligning and centering of a workpiece, which stop positions are nominal stop positions or mechanical terminal stop positions and are functionally correlated; at least one position sensor configured to detect individual actual position values of the stop positions independently from one another; wherein the at least one position sensor is located in a control path between the at least one functional part and a numerical control-based control; wherein the control path is active in positions between the nominal stop positions; the mechanical terminal stop positions; or the nominal stop positions and the mechanical terminal stop positions.