Headstock assembly for a chucker and bar machine

Details Headstock assembly for a chucker and bar machine Headstock assembly for a chucker and bar machine

1987-11-10

1989-05-16

LaRoche, Eugene R.

Turning

Lathe

Headstock

82147, 82153, 82900, 82901, B23B 1902, B23B 336

Patent

active

048298611

ABSTRACT:
This invention pertains to a head stock assembly for a chucker and bar machine which includes a special bearing system comprising three forward bearings and two rearward bearings for providing five point contacts to the spindle for maintaining stiffness and rigidity and improved accuracy in machining. It also includes cooling fin means for dissipating the heat about the bearings which would normally build up in a headstock after long periods of operation. The heat dissipation reduces growth of the headstock and therefore improves accuracy. In addition, the headstock assembly has mounted directly thereon a spindle encoder, a brake disc, a collet closer mechanism, a balancing disc, as well as a low pressure means for preventing cutting fluids and dust and dirt from entering into the bearing mechanism.

REFERENCES:
patent: 2861471 (1956-08-01), Kronenberg
patent: 3317258 (1967-05-01), Hermann
patent: 3916582 (1975-11-01), Costil
patent: 4068545 (1978-01-01), Scheler
patent: 4106376 (1978-08-01), Freer
patent: 4158319 (1979-06-01), Blockley et al.
patent: 4194798 (1980-05-01), Schonwald et al.
patent: 4547082 (1985-10-01), Gerretz et al.
patent: 4580471 (1986-04-01), Oyama et al.

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