Gear cutting – milling – or planing – Milling – Cutter spindle or spindle support
Patent
1982-09-20
1985-04-16
Weidenfeld, Gil
Gear cutting, milling, or planing
Milling
Cutter spindle or spindle support
81 574, 408239R, 173163, B23C 700
Patent
active
045112959
ABSTRACT:
A collet release device for rotating the draw bar on a milling machine is disclosed. The device includes a pneumatically-driven impact wrench which can be lowered to engage and drive the draw bar in the desired direction. The structure of the device includes a frame which is mounted at the top of the milling machine near the drive head of the draw bar. A carriage, which supports the impact wrench, is slidably mounted on the frame and may be lowered by a pneumatic piston. A single control switch actuates both the impact wrench and the piston. Depressing a first button on the control switch causes the impact wrench to engage the draw bar and rotate in a first direction, while depressing a second button causes the wrench to engage the draw bar and rotate in the opposite direction.
REFERENCES:
patent: 3481248 (1969-12-01), Engstrom
patent: 3680437 (1972-08-01), Cravens, Jr.
patent: 3753383 (1973-08-01), Schmidt
patent: 3797956 (1974-03-01), Bayer et al.
patent: 3823642 (1974-07-01), Jerue
patent: 3898911 (1975-08-01), De Caussin
patent: 4075927 (1978-02-01), Frazier
patent: 4382730 (1983-05-01), Reinisch
patent: 4411568 (1983-10-01), Rohm
Kline Thomas M.
Weidenfeld Gil
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