Method of manufacturing an iron core of a multi-phase linear mot

Details Method of manufacturing an iron core of a multi-phase linear mot Method of manufacturing an iron core of a multi-phase linear mot

1994-10-19

1997-02-18

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

29596, 29609, 29732, 29738, H02K 1502

Patent

active

056031556

ABSTRACT:
An iron core of a multi-phase linear motor which is not restricted by the shape of the motor is manufactured. A stator 1 and a mover 2 are disposed opposite to each other and are separated by an air gap. In manufacturing of the iron core of the multi-phase linear motor having a multiplicity of teeth 16 formed on surfaces of a plurality of salient poles P1, P2, . . . disposed in the stator 1 or the motor 2, the stator iron core 10 or mover iron cores 22a and 22b are formed by punching iron plates 30a, 30b, . . . forming the iron core by a punching mold 31 while selectively controlling actuation and withdrawal of movable punches 33 included in the punching mold 31 and disposed so as to be actuable and withdrawable toward and away from the salient poles so that the tips of the salient poles P1, P2, . . . form tooth tops 16a or tooth bottoms 16b of the teeth 16 at a predetermined period for each punching of the iron plates and by laminating the punched iron plates successively.

REFERENCES:
patent: 2192244 (1940-03-01), Schlesinger
patent: 4635351 (1987-01-01), Koch et al.
patent: 5349741 (1994-09-01), Neuenschwander
patent: 5406243 (1995-04-01), Jenkins et al.
Patent Abstracts of Japan, vol. 6, No. 6 (E-89) (884), Jan. 14, 1982 & JP-A-56 129 556 (Tokyo Shibaura).

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