Patent ID: 6726221
Filing Date: 2004-04-27
Classification: B23B,Y10T

Abstract:
A collet chuck assembly for holding a tool or workpiece on a spindle of a turning machine, the collet chuck assembly comprising:a mount having a front portion and a rear portion adapted to be connected to the spindle, the mount having an axial opening extending therethrough; an axially-extendable collet closing sleeve disposed within the axial opening of the mount, the collet closing sleeve having a first cam surface; a radially-expandable collet head comprising a second cam surface engaging the first cam surface, and at least one lip having a third surface; and a cap mounted to the front portion of the mount and engaging the collet head to prevent the collet head from moving axially-forwardly, the cap having at least one tab having a fourth surface that engages the third surface of the lip of the collet head to prevent the collet head from moving axially-rearwardly, wherein the fourth surface of the at least one tab and the third surface of the at least one lip are disposed axially forward from a forward portion of the sleeve.