Gripping arrangement

Details Gripping arrangement Gripping arrangement

1979-03-19

1980-12-23

Watson, Robert C.

Work holders

With fluid means

Plural positioning means sequentially operated

269 32, 269 94, 91399, 91400, 91401, B23Q 302

Patent

active

042406200

ABSTRACT:
A gripping arrangement includes a gripping member operatively connected with a differential both-side acted piston movable in a pneumatic or hydraulic cylinder. The piston stroke includes a first step and a second step. The pressure acted upon the piston to move the same into the respective gripping position is partially counteracted at the first step so as to eliminate an undesirably fast movement of the gripping member during at least initial portion of the stroke. The remaining portion of the stroke the piston moves under full pressure exerted by the pressure medium supplied in the cylinder without any counteracting effect.

REFERENCES:
patent: 3735632 (1973-05-01), Hilton

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