Through hole and bar feed support

Details Through hole and bar feed support Through hole and bar feed support

1992-04-02

1994-09-06

Terrell, William E.

Turning

Lathe

Work rest

82127, 414 17, B23B 1308

Patent

active

053437896

ABSTRACT:
A machine tool having a stock holding and supporting grip which is spaced from the stock clamping chuck and which provides an equally applied gripping pressure at circumferentially spaced locations about the stock, preferably applied by hydraulic gripping elements. The grip accommodates eccentricities and deviations in the stock, and prevents increase in such eccentricities during rotation of the stock during machining which would otherwise arise due to centrified forces acting on the protruding tail of the stock, thus preventing bowing and whipping of the unworked tail and of the stock while machining.

REFERENCES:
patent: 3557971 (1971-01-01), Tomiyama
patent: 3596545 (1971-08-01), Eisenhardt
patent: 4034632 (1977-07-01), Lohner
patent: 4149437 (1979-04-01), Winberg et al.
patent: 4163403 (1979-08-01), Argereu
patent: 4187748 (1980-02-01), Evans
patent: 4631995 (1986-12-01), Vroenen
patent: 4634323 (1987-01-01), Wagner et al.
patent: 4672869 (1987-06-01), Hasslauer et al.

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