Workpiece gripping apparatus

Details Workpiece gripping apparatus Workpiece gripping apparatus

1991-09-23

1993-06-29

Cherry, Johnny D.

Handling: hand and hoist-line implements

Grapple

Load shifting

294907, 901 34, B25J 1502, B25J 1902

Patent

active

052227782

ABSTRACT:
Apparatus for gripping a workpiece such as a rotor is provided which includes gripper arms, a pressure-sensitive sensing member on one of the arms for continuously measuring the gripping force applied by the arms, and a piezoelectric actuator on the outer arm which is actuated to provide fine adjustment of the gripping force in dependence on the output of the sensing member.

REFERENCES:
patent: 4579380 (1986-04-01), Zaremsky et al.
patent: 4605354 (1986-08-01), Daly
patent: 4611377 (1986-09-01), McCormick et al.
patent: 4621331 (1986-11-01), Iwata
patent: 4667997 (1987-05-01), Udagawa et al.
patent: 4715773 (1987-12-01), Parker et al.
patent: 4792715 (1988-12-01), Barsky

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