Gear cutting – milling – or planing – Milling – Including means to infeed rotary cutter toward work
Patent
1978-02-23
1980-12-30
Culver, Horace M.
Gear cutting, milling, or planing
Milling
Including means to infeed rotary cutter toward work
308 6C, 409233, 409235, 409145, B23C 526, B23C 106
Patent
active
042420199
ABSTRACT:
A milling machine includes a C-shaped frame, tool support member movable in a vertical direction, a saddle member movable in a transverse direction, a work table movable in a longitudinal direction, a tool drive unit and two oppositely positioned and removable bearing ways associated with each direction of travel. For the vertical axis the bearing ways are between the C-shaped frame and the tool support member. The tool drive unit includes a hollow tool spindle and a drive motor with a vertically extending hollow output shaft which is rigidly and coaxially connected to the hollow tool spindle. Each vertical axis bearing way longitudinally extends in a vertical direction and includes an outer race portion attached to the C-shaped frame and a ball circulating track portion attached to the tool support member. Reciprocating relative motion between the tool support member and the C-shaped frame occurs at the two bearing way locations and the drive motor for the tool moves with the hollow tool spindle in a vertical direction.
REFERENCES:
patent: 2033749 (1936-03-01), Walter
patent: 2988965 (1961-06-01), Armitage et al.
patent: 3044835 (1962-07-01), Hurd
patent: 3220313 (1965-11-01), Schroeder
patent: 3311426 (1967-03-01), Binns
patent: 3459069 (1969-08-01), Grover
patent: 3511545 (1970-05-01), Brettrager
patent: 3520228 (1970-07-01), Wohlfeil
patent: 3552264 (1971-01-01), Meinke
patent: 3564970 (1969-04-01), Larsen
patent: 3673918 (1972-07-01), Zankl
patent: 3757637 (1973-09-01), Eich et al.
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