Chucks or sockets – Expanding – Collet type
Patent
1990-08-15
1991-03-12
Briggs, William
Chucks or sockets
Expanding
Collet type
92106, 279 4, B23B 1302, F15B 1304
Patent
active
049990020
ABSTRACT:
A chuck assembly for high speed operations is provided. The workpiece gripping and releasing functions of the chuck are carried out pneumatically by a nonrotating air tube assembly extending through a bore in a machine tool to which the rotating chuck is mounted. The chuck is mounted to a portion of a machine tool for rotation therewith and is rotatably disposed over an air journal rigidly mounted to the nonrotating air tube assembly. Selective direction of compressed air causes relative movement between a piston mounted in a cylindrical work chamber of a chuck body. Relative movement between the piston and chuck body causes movement of an actuator having a wedge which is engages a generally annular clamping assembly.
REFERENCES:
patent: 3926446 (1975-12-01), Rohm
patent: 3954275 (1976-05-01), Pickles
patent: 4214766 (1980-07-01), Rall et al.
patent: 4249459 (1981-02-01), Pruden
patent: 4349207 (1982-09-01), Fink
patent: 4447180 (1984-05-01), Pesch
patent: 4537410 (1985-08-01), Hiestand
patent: 4558876 (1985-12-01), Call et al.
patent: 4676516 (1987-06-01), Fink
Briggs William
Casella Anthony J.
Hespos Gerald E.
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