Patent ID: 9698658
Date: 2017-07-04
CPC Classifications: H02K,Y10T

Claim:
1. A manufacturing device for a stator of a rotating electrical machine, wherein the stator includes an annular stator core, which includes a plurality of slots, and a coil attached to the stator core, each of the slots includes an opening, which opens in an inner circumference of the stator core, and a bottom portion, the slots are arranged at a slot pitch from an adjacent one of the slots, the slot pitch increases from the opening toward the bottom portion, and the coil includes a plurality of straight portions, which are respectively inserted into the slots, and a plurality of coil ends, which are continuous with the straight portions, the manufacturing device comprising: a jig including a plurality of holding grooves into which the straight portions of the coil are insertable, wherein each of the holding grooves includes a bottom portion and an opening, adjacent ones of the holding grooves are arranged at a pitch that is the same as the openings of the adjacent ones of the slots in the stator core, and the jig is arrangeable at an inner side of the stator core when the holding grooves respectively face the openings of the slots; a support unit that supports the stator core and the jig, which is arranged at the inner side of the stator core, in a concentric state; a plurality of link mechanisms provided in the jig, wherein each of the link mechanisms includes a pushing member and a link, the pushing member is arrangeable closer to the bottom portion of each holding groove than the straight portion inserted into the holding groove, the link is arranged at an outer side of an end face of the stator core in an axial direction and at an inner side in a radial direction of the stator core from the pushing member, and the link moves the corresponding pushing member in a direction from the bottom portion of the holding groove toward the corresponding slot and from the slot toward the bottom portion; a plurality of pushing units that simultaneously applies a pushing force from the axial direction of the stator core to all of the coil ends of the coil in synchronism with the link mechanism when the straight portions are respectively inserted into the holding grooves of the jig supported by the support unit and the coil ends respectively project outside in the axial direction of the stator core from an end face of a portion including the holding grooves of the jig; an upper drive member; a lower drive member; an upper support member fixed to an upper end of the jig; and a lower support member fixed to a lower end of the jig, wherein the link includes: