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US 2003/0192980 A1Published application
Machine for winding dynamo-electric stators
AssigneeGlobe Motors, Inc.
InventorJerry C. Burch
Life of this patent
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AssigneeGlobe Motors, Inc.
InventorJerry C. Burch
Estimating the term…
An apparatus for forming wire coils on a stator including a winding tool movable in reciprocating and rotating movement and including wire apertures for feeding wire into slots of a stator. A drifting tool is provided adjacent an end of the winding tool and includes drifting blades extending radially outwardly for positioning within the slots of the stator. The drifting tool is movable with the winding tool during the winding operation such that the drifting tool follows the winding tool in its reciprocating movement to provide for displacement of wire in the slots and improve the slot fill during the winding operation. Wire retaining structures are provided above and below the stator to intermittently engage and retain wire located at the ends of the stator. A wire feed mechanism is also provided including a wire feed pulley and a belt cooperating with the pulley to push wire toward the winding tool. The wire feed pulley includes a groove, and a wire exit member is provided cooperating with the groove to engage with ends of wire located in the groove and direct the wire into a passage extending to the winding tool.
A method of forming field coils on a stator for a dynamo-electric machine, said stator including a plurality of slots defined by stator teeth, the method including the steps of:
A method of forming field coils on a stator for a dynamo-electric machine, said stator including a plurality of slots defined by stator teeth, the method including the steps of:
An apparatus for forming field coils on a stator for a dynamo-electric machine, said stator including a plurality of slots defined by stator teeth, said apparatus comprising:
Dependencies are inferred from the claim text.
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Forming windings by laying conductors into or around core parts: by laying conductors into slotted stators
Electromagnet, transformer or inductor: by winding or coiling
Dynamo-electric machines
Technical subjects covered by former us classification
Term end not estimated
1. Field of the Invention
The present invention relates generally to stator winding and, more particularly, to an apparatus and method for forming wound coils on stators for dynamo-electric machines, including an improved drifting tool for displacing wire located in stator slots during the winding operation.
2. Description of the Prior Art
FIG. 1 is a front elevational view of the winding machine of the present invention;
FIG. 2 is a perspective view of the winding machine of the present invention;
FIG. 3 is a cross-sectional view through the center of a drifting tool used in the winding machine;
Referring to FIGS. 1 and 2, a winding machine 10 for performing the method of the present invention is illustrated. The winding machine 10 includes a table top 12 supporting a stator nest 14 and a drifting tool assembly 16. The stator nest 14 includes a clamp 18 for supporting a stator 20, and the stator nest 14 is supported for rotatable movement on a turntable 5 and actuated in rotation by a motor (not shown).
A winding spindle or winding tool 22 extends upwardly through the stator nest 14. The winding tool 22 is driven in reciprocating and oscillating or rotating movement by a drive mechanism located below the table 12. In addition, a programmable controller 24 is provided for controlling the winding operation.
The winding tool 22 is supported on a tool shaft 32 wherein the tool shaft 32 is formed as a hollow tubular member including a wire guide tube 74 (FIG. 15) therein for guiding insulated wire upwardly from a wire feed mechanism into the cylindrical portion of the winding tool 22 passing through the stator nest 14. The structure and operation of the winding machine 10 of the present invention is generally similar to that disclosed in U.S. Pat. No. 5,964,429, which patent is incorporated herein by reference, and it being understood that the present apparatus is an improvement over the apparatus disclosed in U.S. Pat. No. 5,964,429.