Device to press the shaft of a rotor into a stator housing

Details Device to press the shaft of a rotor into a stator housing Device to press the shaft of a rotor into a stator housing

2004-09-08

2008-08-26

Trinh, Minh (Department: 3729)

Metal working

Means to assemble or disassemble

Means to assemble electrical device

C029S732000, C029S734000, C029S596000, C029S598000, C100S291000

Reexamination Certificate

active

07415758

ABSTRACT:
A device to press a rotatably supported shaft of a rotor of a spindle motor for a hard disk drive into a shaft receiving portion of an associated stator housing by means of a first pressing tool acting on the rotor and a second pressing tool acting on the stator housing. A first aligning apparatus for the rotor and a second aligning apparatus for the stator housing are provided. The first and second aligning apparatuses are formed in such a way that they guide the rotor by means of a rotor carrier and the stator housing by means of a stator carrier. The rotor carrier and the stator carrier are exactly aligned with respect to each other during the pressfitting process. The first pressing tool has a first pressing element acting on the shaft of the rotor that is independent of the first aligning apparatus and the second pressing tool has a second pressing element acting on the stator housing that is independent of the second aligning apparatus. The first and second pressing elements abut against the shaft or the stator housing respectively, at the latest at the start of the pressfitting process.

REFERENCES:
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patent: 42 11 276 (1993-10-01), None
patent: 100 26 467 (2001-12-01), None
patent: 09009591 (1997-01-01), None

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