COIL SEGMENT POSITIONING METHOD, COIL SEGMENT POSITIONING TOOL, AND COIL SEGMENT POSITIONING DEVICE

A weld end positioning apparatus (2) that is an example of a positioning apparatus has a base member (10) configured to support a stator core (18), a positioning tool (4) disposed on its upper surface, and a driving mechanism (16) for driving it. The positioning tool (4) has a first plate (6) and a second plate (8). The first plate (6) has an inner side ring (32) and an annular plate body (36) fixed to the upper surface thereof, and the second plate (8) has an outer side ring (38) and a plate body (42) fixed to the upper surface thereof. Insertion holes (62, 62') each configured to accept insertion of one of distal end pairs (22) are formed on the plate body (36) and the plate body (42), respectively, and positioning is performed by rotating these plate bodies (36,42) in opposite directions. Positions of the distal end pairs (22) are aligned in the radial direction without the positioning tool (4), and then the positioning tool (4) is set.