AC servomotor and a method of manufacturing the same

Details AC servomotor and a method of manufacturing the same AC servomotor and a method of manufacturing the same

1987-05-13

1989-01-10

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

310 42, 310 89, 310 90, 310254, H02K 1514

Patent

active

047963522

ABSTRACT:
In an AC servomotor constructed so that the outer circumference (21b) of a stator core (21) formed by laminating thin steel plates (22) is used as part of a motor housing, bearing mounting bores (25a, 26a) for receiving bearing members (27, 28) to be mounted on a pair of brackets (25, 26) attached to the front and rear ends of the stator core (21) and mounting surfaces (25b, 25c) of the motor are formed with accurate concentricity and squareness with reference to the center bore (21a) and the outer circumference (21b) of the stator core (21) after firmly joining the brackets (25, 26) to the stator core (21). Thus, a rotor (29) is supported with high accuracy in concentricity with the stator core (21) on the brackets (25, 26) and the squareness of the output shaft (29a) to the mounting surfaces (25b, 25c) is established.

REFERENCES:
patent: 2039456 (1936-05-01), Sammarone
patent: 2602098 (1952-07-01), Ross et al.
patent: 3031973 (1962-05-01), Kraemer
patent: 3200275 (1965-07-01), Lindgren
patent: 3209434 (1965-10-01), Anderson, Jr.
patent: 3493794 (1970-02-01), Hickle
patent: 3512024 (1970-05-01), Papa
patent: 3871069 (1975-03-01), Greib
patent: 4528490 (1985-07-01), Hansen
patent: 4562641 (1986-01-01), Mosher et al.
Kikai Kogaku Zensho, "Taretto Katsuyo Jiten", 1 Jul. 62, vol. 1, pp. 202-203, p. 301.

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