Clamp device drive apparatus

Details Clamp device drive apparatus Clamp device drive apparatus

1991-03-22

1993-04-06

Swann, J. J.

Work holders

Holder mounted for movement

269 58, 269 61, 269 35, B23G 120

Patent

active

051996928

ABSTRACT:
A clamp device drive apparatus for driving a clamp device engaged with a T-shaped groove slidably between a clamping position and an unclamping position, comprises a push-pull chain connected to a clamp device, a vertical housing for containing the chain, guide members for turning a running course of the chain, a sprocket engaged with the chain, and a cylinder drive type motor for driving the sprocket to rotate, and the motor is constituted to drive the sprocket with a double acting fluid cylinder or a pair of single acting fluid cylinder, through ball screw mechanism for converting driving force into driving torque.

REFERENCES:
patent: Re17473 (1929-10-01), Helmholtz et al.
patent: 679421 (1901-07-01), Halsey
patent: 2932206 (1960-04-01), Tootle
patent: 3162098 (1964-12-01), Lindberg
patent: 3192783 (1965-07-01), Cruzan
patent: 3377711 (1968-04-01), Wempe
patent: 3850420 (1974-11-01), Marceau et al.
patent: 4202231 (1980-05-01), Striebis
patent: 4890655 (1990-01-01), Zweig

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