Device for gripping a workpiece

Details Device for gripping a workpiece Device for gripping a workpiece

1995-10-10

1997-08-19

Watson, Robert C.

Work holders

With fluid means

Cylinder-piston means in series with additional positioning...

B23Q 308

Patent

active

056579730

ABSTRACT:
A device for moving gripping jaws into engagement with a workpiece comprises a housing defining a chamber and first and second ends for closing opposite ends of the chamber. First and second pistons are located in the chamber and are movable toward and away from each other. The first and second pistons are connected to the gripping jaws. Fluid pressure is applied to opposite sides of the first and second pistons to move the first and second pistons toward and away from each other. A rod extending along a longitudinal axis of the housing ensures synchronous movement of the first and second pistons. The rod and the first and second pistons have a driving interconnection which effects rotation of the rod in one direction when the first and second pistons move toward each other and in an opposite direction when the first and second pistons move away from each other. Axial end surfaces of the rod engage the first and second housing ends.

REFERENCES:
patent: 4362261 (1982-12-01), Cook
patent: 4591199 (1986-05-01), Zajac
patent: 4865301 (1989-09-01), Ise
patent: 5242159 (1993-09-01), Bernsteing

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