Spindle head unit

Details Spindle head unit Spindle head unit

1983-01-06

1985-08-13

Briggs, William R.

Gear cutting, milling, or planing

Milling

With means to control temperature or lubricate

82 28R, 82DIG1, 310 59, 310 90, 409231, B23B 1902

Patent

active

045346860

ABSTRACT:
A motor-incorporated spindle head unit is provided with a rotatable spindle on which a rotor assembly of the motor is fixedly mounted. A stator assembly is arranged around the rotor assembly and is fixed to an outer framework of the spindle head unit in a cantilever fashion. A cooling system for cooling the stator assembly is formed by providing an annular gap between the outer framework and the periphery of the stator assembly and is adapted to permit cooling air introduced into the annular gap through air ports formed in an end of the outer framework to flow through at least a throughbore formed in the stator assembly.

REFERENCES:
patent: 2251442 (1941-08-01), Emmons
patent: 2343875 (1944-03-01), Schwartz
patent: 3590292 (1971-06-01), Poliakoff
patent: 3717779 (1973-02-01), Hallerback
patent: 3916231 (1975-10-01), Cathey
patent: 4085344 (1978-04-01), Eddens
patent: 4110643 (1978-08-01), Muller
patent: 4133230 (1979-01-01), Inaba et al.
patent: 4237393 (1980-12-01), Landgtaf
patent: 4246503 (1981-01-01), Fujioka et al.
patent: 4352034 (1982-09-01), Karhan et al.
patent: 4406959 (1983-09-01), Harano et al.

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