Patent ID: 6623015
Filing Date: 2003-09-23
Classification: B23B,Y10T

Abstract:
A clamping chuck having a housing with a central receptacle defining a central axis for receiving a draw bar, and a disk having a central bore which is arranged around the receptacle and movable from a clamping position, wherein a draw bar axially inserted into the receptacle is clamped, to a releasing position, wherein a draw bar is released from being clamped, said disk including a locking mechanism comprising a plurality of locking elements spaced equally apart in a circumferential direction and a brake for coupling with a draw bar such that the brake force of the brake is proportional to an axial pull on the draw bar, said brake being axially operable and including a radially extending braking surface provided at the disk frictionally abutting a surface of said housing, said braking surface movable axially against said surface when the draw bar is clamped.