Shaft rotation driving apparatus for machine tool

Details Shaft rotation driving apparatus for machine tool Shaft rotation driving apparatus for machine tool

1996-03-12

1998-06-09

Marmor, Charles A.

Machine element or mechanism

Gearing

Directly cooperating gears

310 80, 310156, F16H 120

Patent

active

057619620

ABSTRACT:
A shaft rotation driving apparatus for a machine tool having a main spindle for rotating a tool or a workpiece, comprises: a magnetic anisotropic rotor formed integral with the main spindle itself or with a rotary sleeve itself fitted to the main spindle; a stator disposed coaxially along an outer circumference of the magnetic anisotropic rotor; a field winding wound around the stator, for magnetizing the rotor in a predetermined direction; and an armature winding wound around the stator, for providing a rotative force to the rotor.

REFERENCES:
patent: 3278774 (1966-10-01), Roller et al.
patent: 3321652 (1967-05-01), Opel
patent: 4650056 (1987-03-01), Sevennec et al.
patent: 4765651 (1988-08-01), Unger
patent: 5013951 (1991-05-01), Stadnik et al.
patent: 5085094 (1992-02-01), Clawson et al.
patent: 5188052 (1993-02-01), Breuer
patent: 5193953 (1993-03-01), Jesinger
patent: 5223759 (1993-06-01), Shimoda et al.

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