Machine tool fixture

Details Machine tool fixture Machine tool fixture

1983-12-27

1985-08-27

Watson, Robert C.

Work holders

With fluid means

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

269234, 269238, 269254R, B23Q 308

Patent

active

045373892

ABSTRACT:
A fixture for holding and presenting a work piece to a tool. The fixture includes a pair of pivotally mounted arms each of which has a jaw for closing on and engaging the work piece. The arms are disposed between a pair of opposed plates. Rollers are mounted on the plates adjacent the opposite ends thereof. A tapered rod extends between the rollers with a narrow part thereof engaging the rollers when the jaws are in their open position. A spring biases the tapered rod to dispose a wider portion of the rod in the space between the rollers to cause the jaws to close. A fluid actuated piston is attached to the tapered rod and is movable by the fluid alternately to assist or oppose the bias of the spring in moving the tapered rod.

REFERENCES:
patent: 492931 (1893-03-01), Baird
patent: 2424090 (1947-07-01), Gordinier
patent: 2790361 (1957-04-01), Swanson et al.
patent: 2850926 (1958-09-01), Jobe
patent: 3170322 (1965-02-01), Cavanaugh
patent: 4076227 (1978-02-01), Rameson

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