Finishing method for stepping motor stator stack and rotor stack
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United States of America Patent
Stats
-
Sep 13, 2005
Grant Date -
Jun 17, 2004
app pub date -
Aug 26, 2003
filing date -
Aug 26, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
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 a 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 this is moved relatively 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 sprayed from the jet orifices strikes 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.
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