Patent ID: 10583498

Abstract:
An expanding collet device can selectively clamp a workpiece to a workpiece support and can include an arbor, expandable collet and threaded screw actuator. The threaded screw actuator mechanism can include a support, drawbar, socket and a pair of thrust bearings. The drawbar can be connected to the collet and can extend into the support. An outer circumferential portion of the drawbar can oppose and be spaced away from an inner circumferential portion of the support. The socket can surround the drawbar and can include external threads engaging internal threads on the support such that rotation of the socket relative to the support displaces the socket in the axial direction. The socket, support, and drawbar can be configured such that rotation of the socket relative to the support displaces the drawbar in the axial direction such that the drawbar moves the collet between the released position the clamped position.