Patent ID: 9712024
Date: 2017-07-18
CPC Classifications: B21D,B21F,H02K

Claim:
1. A coil end shaping apparatus that shapes a plurality of edgewise bent portions that are bent in an edgewise direction in a lead wire portion extending from one end of a coil, the lead wire portion having a rectangular cross-sectional shape, the edgewise direction being a direction parallel to one side of the rectangular cross-sectional shape, a flatwise direction being a direction parallel to another side of the rectangular cross-sectional shape that is perpendicular to the edgewise direction, the apparatus comprising: first and second shaping dies capable of approaching each other to press the lead wire portion between the first and second shaping dies to shape at least some of the plurality of edgewise bent portions provided on a base end side of the lead wire portion with respect to one of the edgewise bent portions that is closest to a free end side of the lead wire portion; a third shaping die capable of cooperating with one of the first and second shaping dies to shape at least one of the plurality of edgewise bent portions that is closest to the free end side; and a pushing mechanism that: includes a pushing member configured to abut with the lead wire portion, and move the pushing member so as to abut with a free end portion of the lead wire portion when the edgewise bent portion that is closest to the free end side is shaped as one of the first and second shaping dies is moved toward the other; is configured to restrain movement of the pushing member when in abutment with the free end portion to restrain the free end portion until the one of the first and second shaping dies is moved away from the other by a predetermined amount after the edgewise bent portion that is closest to the free end side is shaped; and is configured to move the pushing member away from the free end portion of the lead wire portion as the one of the first and second shaping dies is further moved away from the other.