Chucks or sockets – With fluid-pressure actuator – Socket type
Patent
1983-04-22
1985-08-20
Briggs, William R.
Chucks or sockets
With fluid-pressure actuator
Socket type
279110, 279123, B23B 3128
Patent
active
045360006
ABSTRACT:
A chuck has a chuck body rotatable about an axis, a plurality of jaws radially displaceable on the body and each having a radially inwardly directed workpiece-engaging face, and an axially displaceable operator linked to the jaws to radially displace same relative to the chuck body. Respective transducers on the chuck body are connected to the jaws for generating a signal proportional to a parameter of the respective jaw. These signals are transmitted from the chuck body to a stationary signal receiver adjacent the chuck body wholly without physical contact with the signal transmitter. Similarly, a stationary energy transmitter adjacent the chuck body transmits energy and a receiver on the chuck body receives the transmitted energy wholly without physical contact with the energy transmitter and powers the signal transmitter therewith. The transducers can be position or force transducers, for instance constituted by strain gauges or linear potentiometers. The signal and energy transmitters and receivers are formed by coaxial coils carried on a fixed support and on the chuck.
REFERENCES:
patent: 3562477 (1971-02-01), Macmanus
patent: 3711106 (1973-01-01), Hogan et al.
patent: 3879045 (1975-04-01), Benjamin et al.
patent: 4090802 (1978-05-01), Bilz
patent: 4254676 (1981-03-01), Wilson
patent: 4387907 (1983-06-01), Hiestand
patent: 4414871 (1983-11-01), Trout
patent: 4425060 (1984-01-01), Bilz et al.
patent: 4443021 (1984-04-01), Buchholz et al.
Briggs William R.
Dubno Herbert
Ross Karl F.
Webb Glenn L.
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