| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and apparatus for manufacturing a split laminated core which has a holding part of winding formed in projection in an axial direction in a conventional laminated core and moreover has a yoke and pole teeth formed on the occasion of assembly and extended in the axial direction to improve magnetic efficiency. SOLUTION: The split laminated core 10 is manufactured by laminating by caulking a split core piece 18 which has a split yoke piece part 18b having a circular-arc outside, a pole axis piece part 11a connected to the inside of the split yoke piece part 18b and a pole tooth piece part 13a connected to the inside of the pole axis piece part 11a. In this manufacturing process, the pole axis piece part 11a of the split core piece 18 is removed by a plurality of cutting tools 33 and 34 at least one of which moves in the radial direction, so as to form first and second yoke projection pieces 20 and 21 which form first and second yoke projection parts 14 and 15 and to form first and second pole tooth projection pieces 22 and 23 which form first and second pole tooth projection parts 16 and 17 of which the lengths in the radial direction differ gradually from each other and which have slant parts 25 and 26 on the outside in the radial direction. COPYRIGHT: (C)2009,JPO&INPIT
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