Clamping device for work pieces of irregular shape

Details Clamping device for work pieces of irregular shape Clamping device for work pieces of irregular shape

1976-09-20

1977-09-13

Watson, Robert C.

Work holders

With fluid means

With movable diaphragm

269228, 269254CS, 269266, B23Q 308

Patent

active

040477096

ABSTRACT:
The invention relates to apparatus for supporting or clamping bodies of irregular shape, (particularly large workpieces) comprising a clamping jaw, in the form of a box with axially moveable plungers extending from its work face, said plungers being supported in different axial positions, determined by contact with the surface of the workpiece, by a solid medium within the box. Known apparatus do not have positive means for locking the plungers in their positions. The invention provides a simple and effective locking arrangement in which the solid medium is a multiplicity of hard balls, each plunger is formed with ball-receiving cavities, and application of a pressure to the balls is transmitted via the ball-receiving cavities to lock said plungers.

REFERENCES:
patent: 2658415 (1953-11-01), Barowsky
patent: 2754708 (1956-07-01), Peterson
patent: 3604700 (1971-09-01), Gault
patent: 3858468 (1975-01-01), Pasbrig

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