Gear cutting – milling – or planing – Milling – Cutter spindle or spindle support
Patent
1997-02-03
1998-12-08
Briggs, William R.
Gear cutting, milling, or planing
Milling
Cutter spindle or spindle support
408239A, B23Q 312, B23C 526, B23B 3110
Patent
active
058460373
ABSTRACT:
The invention comprises a vertical milling machine having a J-head and a manually adjustable spindle for the rapid change of a tool held in said spindle, including a milling machine head having a motor means for rotatively moving the spindle about its longitudinal axis. An elongated draw bar is rotatively supported within the spindle. A compressive spring is arranged between the top end of the draw bar and the top end of the spindle. An enclosure cap is attached to the head, so as to limit vertical advance of the draw bar, a coupling arranged at the lower end of the draw bar, and a collet with a pull stud thereon, is arranged in mating engagement with the coupling, wherein the collet and a tool therein are released as the spindle is moved longitudinally upwardly with respect to the collet.
REFERENCES:
patent: 2135861 (1938-11-01), Thompson
patent: 3674281 (1972-07-01), Hedrick
patent: 4171821 (1979-10-01), Miller
patent: 4172683 (1979-10-01), Shimajiri et al.
patent: 4322190 (1982-03-01), Anderson
patent: 4398326 (1983-08-01), Joerger
patent: 4480366 (1984-11-01), Takahashi et al.
patent: 4743145 (1988-05-01), Hendricks et al.
patent: 4768282 (1988-09-01), Rieck et al.
Briggs William R.
Halgren Don
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