A hairpin coil forming apparatus configured to 3D-form a head portion of a 2D-formed I-shaped coil material, the hairpin coil forming apparatus includes a frame, a first mold disposed on a first side of the frame to form the head portion of the coil material into a predetermined shape, a second mold disposed on a second side of the frame to secondarily form the head portion of the pre-formed coil firstly formed by the first mold, a first coil transfer unit disposed in a process work area to transfer the coil material to the first mold, and a second coil transfer unit disposed on the frame to transfer the pre-formed coil from the first mold to the second mold.

A hairpin coil forming apparatus configured to 3D-form a head portion of a 2D-formed I-shaped coil material, the hairpin coil forming apparatus includes a frame, a first mold disposed on a first side of the frame to form the head portion of the coil material into a predetermined shape, a second mold disposed on a second side of the frame to secondarily form the head portion of the pre-formed coil firstly formed by the first mold, a first coil transfer unit disposed in a process work area to transfer the coil material to the first mold, and a second coil transfer unit disposed on the frame to transfer the pre-formed coil from the first mold to the second mold.

There are provided first guide members inserted into the insides of the insulating members in the slots, second guide members inserted into the insides of the insulating members and onto outer sides relative to the first guide members in a radial direction in the slots, and a controller controlling movement of each of the first guide members and the second guide members. After the first guide member moves outward in the radial direction in the slot until coming into contact with or close to a second guide member, the plurality of second guide members are caused to sequentially move to an outer side of the stator core in the central axis direction in order with the second guide member closest to the first guide members first and retreat from the slot as the coil is moved outward in the radial direction by the pressers.

There are provided first guide members inserted into the insides of the insulating members in the slots, second guide members inserted into the insides of the insulating members and onto outer sides relative to the first guide members in a radial direction in the slots, and a controller controlling movement of each of the first guide members and the second guide members. After the first guide member moves outward in the radial direction in the slot until coming into contact with or close to a second guide member, the plurality of second guide members are caused to sequentially move to an outer side of the stator core in the central axis direction in order with the second guide member closest to the first guide members first and retreat from the slot as the coil is moved outward in the radial direction by the pressers.