Chucks or sockets – With fluid-pressure actuator – Socket type
Patent
1982-06-09
1985-03-12
Briggs, William R.
Chucks or sockets
With fluid-pressure actuator
Socket type
279121, B23B 3116
Patent
active
045040702
ABSTRACT:
An anti-centrifugal power chuck of the type having a plurality of radially-movable jaws and respective wedge-like actuators associated therewith for the purpose of displacing the jaws into engagement with a workpiece for holding same as the chuck is rotated at high speeds is designed to resist the centrifugal forces which are applied at high rotational speeds to a significantly greater degree than has been previously obtainable and which will reduce problems of binding and wear associated with the use of wedge-type actuators, without compromising strength. In accordance with a preferred embodiment, a single, massive, unitary body member is utilized for both radially-movably supporting and guiding a plurality of gripping jaws and for receiving, within complementarily-shaped bores, the respective wedge-like actuators, which actuators and the actuation system therefor have been modified to operate under compression instead of tension for external gripping of workpieces. Additionally, the wedge members and their respective bores are formed of a substantially circular cylindrical shape for radially and circumferentially distributing circumferential forces imposed on the jaws to the unitary body member.
REFERENCES:
patent: 3424467 (1969-01-01), Buck
patent: 3494627 (1970-02-01), Pirman
patent: 3658353 (1972-04-01), Parsons
patent: 3814451 (1974-06-01), Rohm
patent: 4078814 (1978-03-01), Rohm
patent: 4123075 (1978-10-01), Rosewarne et al.
patent: 4288085 (1981-09-01), Antoni
Briggs William R.
Speedgrip Chuck, Inc.
Webb Glenn L.
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