Gear cutting – milling – or planing – Milling – Means for internal milling
Patent
1991-12-04
1993-02-09
Howell, Daniel W.
Gear cutting, milling, or planing
Milling
Means for internal milling
409201, 409215, B23C 328
Patent
active
051849275
ABSTRACT:
A machine tool to machine a workpiece includes linear slide blocks supported one by the other on a pedestal to present a mounting surface for supporting a workpiece, a support head includes a rotary indexing table that in turn supports an elongated cutter bar the support head to define an outwardly projecting cantilever end portion that is in turn supported by an outboard support, a cutter tool is supported for rotary movement about an axis transverse to the extended length of the cutter bar, a drive means extends along the cutter bar for rotating a cutter tool. The drive to rotate the tool in one embodiment takes the form of a belt extending between pulleys one of which drives the tool and the other is coupled to the electric motor in the drive head. A hydraulic motor is mounted in the cutter bar to rotate a tool according to a second embodiment. A train of idler gears extending internally of the bar transmits torque from the drive motor within the drive head to the cutting tool according to a third embodiment.
REFERENCES:
patent: 548822 (1895-10-01), Stirling
patent: 1514907 (1924-11-01), Hopper
patent: 2372913 (1945-04-01), Schmidt
patent: 3289537 (1966-12-01), Adams
patent: 4400859 (1983-08-01), Woythal et al.
patent: 4557644 (1985-12-01), Scepanovic et al.
patent: 4557645 (1985-12-01), Marsland
patent: 4690596 (1987-09-01), Mortier et al.
Howell Daniel W.
Poff Clifford A.
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