Gear cutting – milling – or planing – Milling – Including means to infeed rotary cutter toward work
Patent
1991-08-15
1992-02-25
Howell, Daniel W.
Gear cutting, milling, or planing
Milling
Including means to infeed rotary cutter toward work
409201, 409211, B23C 112
Patent
active
050908510
ABSTRACT:
A milling machine cutter tool structured and oriented to perform complex three dimensional contour machining operations and provides for the cutting edges of the cutter to engage the workpiece in the same direction as the feed direction, thereby resulting in maximal cutting efficiency. The cutting tool is composed of a sleeve rotatably mounted to the milling machine, a quill axially movable in the sleeve, a position drive for selectively moving the quill relative to the sleeve, a drive shaft rotatably supported in the quill and connected at a rear end thereof to a cutter drive, a cutter head connected to the opposite forward end of the quill, a worm gear set mounted in the cutter head connecting gearably to the drive shaft, a cutter shaft mounted in the cutter head transversely in relation to the drive shaft and gearably connected to the worm gear set, and a side cutter connected to the cutter shaft, the side cutter supporting teeth extending forwardly of the cutting head. In one preferred embodiment, the drive shaft is powered by a self-contained drive motor connected to the quill. In a second preferred embodiment, the drive shaft is powered by the spindle drive system of the milling machine.
REFERENCES:
patent: 1029402 (1912-06-01), Ritter
patent: 1040954 (1912-10-01), Johnson
patent: 1879548 (1932-09-01), Sethman
patent: 2134210 (1938-10-01), Secor
patent: 2963944 (1960-12-01), Strauss
patent: 3335638 (1967-08-01), Brunn
patent: 4942657 (1990-07-01), Mihara et al.
patent: 4993138 (1991-02-01), Yang
Howell Daniel W.
Keefe Peter D.
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