Finishing method for stepping motor stator stack and rotor...

Details Finishing method for stepping motor stator stack and rotor... Finishing method for stepping motor stator stack and rotor...

2006-10-10

2006-10-10

Shakeri, Hadi (Department: 3723)

Abrading

Abrading process

Gear or worm abrading

C451S049000, C029S421100

Reexamination Certificate

active

07118460

ABSTRACT:
A stepping motor stator stack and rotor stack finishing method whereby the burrs remaining on the small tooth surfaces of the stacks can be eliminated and prevented from lodging in the spaces between laminations of a plurality of stacked steel plates, without causing dulling of these small teeth. After abrasive finishing is carried out, a high pressure liquid jet spray nozzle is introduced into the central cylindrical cavity of a stator stack, and while the nozzle is moved along the central axis of the central cylindrical cavity and rotated relatively centered on the central axis of the central cylindrical cavity, the high pressure liquid jet is sprayed from the jet orifices striking the small tooth surfaces of the stator stack facing the central cylindrical cavity so as to remove the burrs remaining on the small tooth surfaces.

REFERENCES:
patent: 4771659 (1988-09-01), Schmolke
patent: 5964644 (1999-10-01), Rhoades
patent: 6099391 (2000-08-01), Suzuki et al.
patent: 6244934 (2001-06-01), Miyai et al.
patent: 6622685 (2003-09-01), Takahashi et al.
patent: 6920683 (2005-07-01), Tanaka
patent: 2003/0032369 (2003-02-01), Carpenter

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