Fluid-operated collet chuck with centering fingers

Details Fluid-operated collet chuck with centering fingers Fluid-operated collet chuck with centering fingers

1994-03-01

1995-07-04

Bishop, Steven C.

Chucks or sockets

With fluid-pressure actuator

Socket type

279 403, 279132, 279133, B23B 3120

Patent

active

054293766

ABSTRACT:
A chuck for gripping workpieces to be machined has a chuck body with a workpiece support surface for supporting a workpiece to be machined. Generally radially movable centering and gripping collet fingers are concentrically supported by the chuck body. An inflatable bladder is further mounted on the chuck body in generally concentric relationship with the fingers. Control mechanism is provided for initially radially moving the centering fingers to cause them to move radially and center said workpiece, and then supplies a fluid under pressure to inflate the bladder and move the gripping fingers generally radially to fully grip the centered workpiece.

REFERENCES:
patent: 2460577 (1949-02-01), Hohwart et al.
patent: 2509673 (1950-05-01), Church
patent: 2565430 (1951-08-01), Hohwart et al.
patent: 2873121 (1959-02-01), Hahn
patent: 3542354 (1970-11-01), Fitzpatrick
patent: 3770287 (1973-11-01), Weber et al.
patent: 4139207 (1979-02-01), Grimes
patent: 4300780 (1981-11-01), Urbanic
patent: 4482162 (1984-11-01), Anegawa
patent: 4953877 (1990-09-01), Slachta et al.

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