Machine tool fixture

Details Machine tool fixture Machine tool fixture

1991-01-11

1991-08-13

Watson, Robert C.

Work holders

With fluid means

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

269234, 269268, B66C 102

Patent

active

050390740

ABSTRACT:
Machine tool fixture for clamping a workpiece characterized by jaw members nested in an overlapped relation with jaw closing cam surfaces in laterally spaced relation defining a slot in which is positioned a complemental cam section of a cam plunger moving on an axis normal to the axis of jaw movement. In one embodiment the plunger and jaws have a second set of complemental cam surfaces to open the jaws; in a second embodiment, springs are used to open the jaws at a corresponding limit position of the cam plunger.

REFERENCES:
patent: 2850926 (1958-09-01), Jobe
patent: 3170322 (1965-02-01), Cavanaugh
patent: 4362261 (1982-12-01), Cook
patent: 4537389 (1985-08-01), Kancnik et al.
patent: 4858901 (1989-08-01), Okugama et al.
patent: 4901991 (1990-02-01), Bonkowski

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