Claims
- 1. A method for manufacturing a stator of a rotary electric machine including a cylindrical stator core with a plurality of slots and a plurality of conductor segments respectively disposed in said slots in a plurality of radially aligned layers, said method comprising:
forming a plurality of conductor segments each having at least a straight leg; inserting said plurality of conductor segments into each of said slots in a plurality of radially aligned layers so that said straight legs can extend outside an end of said stator core; stratifying said straight legs in radially aligned layers to correspond to said layers in said slots; holding each of said stratified straight legs at grip portions; circumferentially shifting each of said grip portions in a prescribed circumferential direction of said stator core; and axially shifting each of said grip portions separately from another in an axial direction of said stator core to locate those of said grip portions to be connected adjacent to each other.
- 2. The method of manufacturing a stator of a rotary electric machine as claimed in claim 1, wherein
said straight legs are formed so that those of said legs disposed in radially more outside layer are higher.
- 3. The method as claimed in claim 2, wherein
said circumferentially shifting step comprises a step of shifting each of said grip portions the same angle in said circumferential direction, and said axially shifting step comprises a step of shifting each of said grip portions in said axial direction until all said heights become equal.
- 4. The method as claimed in claim 2, wherein
said grip portions are held so that distances thereof from said end of said stator core can be equal to each other.
- 5. The method as claimed in claim 4, wherein
said grip portions are shifted the same angle in said circumferential direction, and said grip portions are separately shifted in said axial direction so that lengths of those of said grip portions disposed in a layer that is radially more outside are shorter.
- 6. The method as claimed in claim 1, wherein
said grip portions is held so that the length of one of said grip portions disposed in a radially more outside layer from said end of said stator core is longer.
- 7. The method as claimed in claim 6, wherein
said grip portions are shifted the same angle in said circumferential direction and separately shifted in said axial direction so that said grip portions disposed in all said layers of said slots become equal in distance from said end of said stator core.
- 8. The method as claimed in claim 1, characterized in that
said grip portions are held at circumferential sides thereof.
- 9. The method as claimed in claim 1, wherein
said grip portions are shifted by a holding member having a plurality of cavities while ends of said grip portions abut bottoms of said cavities.
- 10. The method as claimed in claim 9, wherein
said grip portions are shifted in said axial direction in response to shifting of said holding member.
- 11. The method as claimed in claim 9, wherein
said holding members moves in said axial direction in response to shifting of said grip ends of said grip portions.
- 12. The method as claimed in claim 9, wherein
each of said cavities of said holding members has a rectangular cross-section for holding one of said grip portions and twists said extended legs.
- 13. The method as claimed in claim 1, further comprising:
machining said grip portions so that heights of said grip portions from said end of said stator core disposed in all said layers can be equal to each other.
- 14. An apparatus for manufacturing a stator of a rotary electric machine including a cylindrical stator core with a plurality of slots and a plurality of conductor segments respectively disposed in said slots in a plurality of radially aligned layers, said method comprising:
means for holding each of stratified portions of said conductor segments at grip portions; means for circumferentially shifting each of said grip portions in a prescribed circumferential direction of said stator core; and means for axially shifting each of said grip portions separately from another in an axial direction of said stator core to locate those of said grip portions to be connected adjacent to each other.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2000-6362 |
Jan 2000 |
JP |
|
CROSS REFERENCE TO RELATED APPLICATION
[0001] The present application is based on and claims priority from Japanese Patent Application 2000-6362 filed on Jan. 12, 2000, the contents of which are incorporated herein by reference.