Gear cutting – milling – or planing – Milling – Cutter spindle or spindle support
Patent
1996-04-03
1997-09-02
Howell, Daniel W.
Gear cutting, milling, or planing
Milling
Cutter spindle or spindle support
408239R, B23Q 312
Patent
active
056624425
ABSTRACT:
A tool clamping mechanism for clamping a tool using a thrust applied by a hydraulic/pneumatic cylinder as an actuator. This thrust is weaker than that of coned disc springs withstanding a force applied during a cutting operation or the like of the tool. Compression of the coned disc springs is reduced so as to assure reliable and stable rotation of the spindle. The clamping mechanism further includes a force increasing mechanism constituted by sloped portions between a first draw bar and a second draw bar which is concentric to the first draw bar, a tapered surface of an annular piece, and a plurality of balls. When the second draw bar retreats, the balls are raised from the groove to a larger diameter portion of the second draw bar, so that an urging force of the coned disc springs acts on the first draw bar, and clamps the tool to the spindle. In order to unclamp the tool, the second draw bar is moved forward so as to put the balls into the groove on the first sleeve, and to interrupt the transmission of the urging force of the coned disc springs to the first draw bar, and to release the tool from the clamping mechanism.
REFERENCES:
patent: 3684303 (1972-08-01), Serra
patent: 4068559 (1978-01-01), Schmid, Jr. et al.
patent: 4122755 (1978-10-01), Johnson et al.
patent: 4290720 (1981-09-01), Ferreira
patent: 4347753 (1982-09-01), Claussen et al.
patent: 4411568 (1983-10-01), Rohm
patent: 4680999 (1987-07-01), Kojima et al.
patent: 5011346 (1991-04-01), Pfalzgraf
patent: 5018916 (1991-05-01), Bauch et al.
patent: 5022278 (1991-06-01), DeCaussin
patent: 5052866 (1991-10-01), Bauch et al.
Suzuki Hiroyuki
Taki Yukio
Howell Daniel W.
Kirkman Christopher
Okuma Corporation
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