Gear cutting – milling – or planing – Milling – Cutter spindle or spindle support
Patent
1979-01-09
1980-04-08
Bilinsky, Z. R.
Gear cutting, milling, or planing
Milling
Cutter spindle or spindle support
279 52, 279 59, 279 82, 408239A, 409234, B23C 526, B23B 3104
Patent
active
041970446
ABSTRACT:
A chuck assembly and collet for retaining an end mill tool against axial pullout. The collet includes a radially compressible body having a tapered outer surface, a central bore and a radial aperture extending from the outer surface into the central bore. The radial aperture, which includes larger and smaller diameter portions, has a movable pin mounted therein and adapted to extend into the bore to retain the tool. The pin has an undercut portion, with a spring or snap ring mounted around the pin in the undercut portion, said spring having a free diameter slightly larger than the larger diameter to provide a pressure fit when mounted therein. The undercut has a length which is larger than the thickness of the snap ring to allow a limited radial movement of the pin to lock and to release the tool, whereby the pin is urged inwardly into the bore and engages a rear bevel end on a flat surface on the tool to secure the tool within the collet as the collet is tightened within the chuck assembly and whereby the pin can move outwardly to release the tool when the collet is removed from the chuck assembly.
REFERENCES:
patent: 3195909 (1965-07-01), Dinnen
patent: 3425705 (1969-02-01), Benjamin et al.
patent: 3556540 (1971-01-01), Benjamin et al.
patent: 3618962 (1971-11-01), Cox et al.
patent: 3830135 (1974-08-01), Sullivan
Bilinsky Z. R.
Eifler Raymond J.
Seaman Kenneth A.
The Bendix Corporation
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