Patent ID: 6145850
Filing Date: 2000-11-14
Classification: B23B,Y10T

Abstract:
A diaphragm chuck (1) with clamping jaws (3) inserted in a chuck body (2) adapted to act on a workpiece (10), and in drivable connection with a diaphragm (4) attached to an outer area of an end (11) of the chuck body (2), to deform the diaphragm (4) by means of a centrally arranged, axially movable actuator (5) via jaw carriers (6) supported on the diaphragm (4);wherein said diaphragm chuck (1) is provided with counterweights (8) attached to the clamping jaws (3) and engaging in recesses (7) in the chuck body (2), each of the clamping jaws (3) having a joining piece (23) offset in a direction of the chuck body (2) in axial alignment with and axially parallel to the chuck body (2), with the joining pieces (23) being held in openings (27) in the counterweights (8), and wherein the clamping jaws (3) are adapted to be clamped together with the jaw carriers (6), the diaphragm (4) and the counterweights (8) by means of quick clamping devices (31) which engage in the joining pieces (23) and which act in the axial direction of the joining pieces (23).