Means for holding workpiece for machining

Details Means for holding workpiece for machining Means for holding workpiece for machining

1992-02-18

1993-06-29

Watson, Robert C.

Work holders

With fluid means

Vacuum-type holding means

B25B 1100

Patent

active

052227197

ABSTRACT:
A workpiece support and means for holding the workpiece on a machine tool to support it in an elevated position above the flat surface of a hollow workpiece supporting bed of the machine tool is disclosed. The bed has a plurality of openings arranged in a pattern over each of which an individual pod may be placed. Each pod is hollow and through it air is withdrawn into the machine to cause the workpiece, due to air pressure differential, to seat firmly against it. When the machine is inactive each pod may be inverted and then inserted to seal the opening into which it is seated. Each opening is surrounded by a circumferential recess to receive the lip at the pod's larger end. This lip is received in this recess both when the pod is upright to support and hold a workpiece and when it is inverted to seat into and to close the opening in the supporting bed. As many of the pods are placed in upright position as are needed to engage, hold and support a particular workpiece.

REFERENCES:
patent: 3307819 (1967-03-01), Cocito
patent: 3694894 (1972-10-01), Jelinek et al.
patent: 4088312 (1978-05-01), Frosch et al.
patent: 4357006 (1982-11-01), Hayes
patent: 4527783 (1985-07-01), Collora et al.
patent: 4684113 (1987-08-01), Douglas et al.
patent: 4723766 (1988-02-01), Beeding
patent: 4805887 (1989-02-01), Ray
patent: 5028182 (1991-07-01), Park et al.

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