US 6,145,850 A · Diaphragm chuck

Abstract

In a diaphragm chuck (3) with clamping jaws (3) which are in a drivable connection with a deformable diaphragm (4) by means of jaw carriers (6) and in which counterweights (8) allocated to the clamping jaws (3) are inserted in the chuck body (2), the clamping jaws (3) are provided with axially aligned joining pieces (23) which are held in the counterweights (8). The clamping jaws (3) can be clamped together with the jaw carriers (4) and the diaphragm as well as with the counterweights (8) by means of quick clamping devices (31) which engage in the joining pieces (23). This embodiment achieves a situation in which the clamping jaws (3) can be changed rapidly and in a straightforward procedure by releasing the quick clamping devices (31) by means of a tool which can be inserted radially from the outside into the chuck body (2). Furthermore, the clamping jaws (3), the jaw carriers (6) and the counterweights (8) form a unit which is chucked in itself, which possesses a high degree of rigidity and also no impurities can achieve ingress between these components.

Claims16

Dependent claims

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).

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

a joining piece (23') is formed onto each jaw carrier (6') protruding in the direction of the clamping jaw (3'), with said joining piece (23') engaging in an opening (27') in the clamping jaw (3'), and wherein the clamping jaws (3') are adapted to be clamped onto the jaw carrier (6') and the joining pieces (23') by quick clamping devices (31) arranged in the clamping jaws (3') and on the joining pieces (23') and which act in the axial direction of the clamping jaws (3') and the joining pieces (23'), and wherein each of the clamping jaws (3, 3') is provided with a spring detent (72, 72') which engages in a circumferential groove (73, 73') in each of the joining pieces (23').

Dependencies are inferred from the claim text.

Diaphragm chuck

Life of this patent

Diaphragm chuck

Life of this patent

Abstract

Claims16