Apparatus for Molding Hairpin and Method of Inserting Hairpin Using the Same
AssigneesHyundai Motor Company, Kia Corporation
InventorSeung Min Choi
Life of this patent
Estimating the term…
Abstract
A method can be used for inserting a hairpin in a stator core. The method includes unwinding a coil spiral-wound on an uncoiler, forming a decoated portion by decoating a predetermined portion on the coil, bending the coil in multiple stages to two-dimensionally form a leg portion and a head portion of a hairpin, cutting the coil formed with the leg portion and the head portion by a predetermined length, and moving the hairpin to be inserted into a stator core while three-dimensionally forming the head portion.
Claims20
A method comprising:
- unwinding a coil spiral-wound on an uncoiler;
- forming a decoated portion by decoating a predetermined portion on the coil;
- bending the coil in multiple stages to two-dimensionally form a leg portion and a head portion of a hairpin;
- cutting the coil formed with the leg portion and the head portion by a predetermined length;
- and
- moving the hairpin to be inserted into a stator core while three-dimensionally forming the head portion.
A method for molding a hairpin inserted into a stator core using a clamping unit that includes a connection bracket mounted on a front end of a robot arm and at least one clamper mounted on the connection bracket, the method comprising:
- reciprocally driving the clamping unit in opposite directions in a straight line, the;
- and
- press molding a head portion of the hairpin using a molding jig driven by the at least one clamper.
A method comprising:
- unwinding a coil spiral-wound on an uncoiler;
- heating the coil;
- peeling off an insulating film of an enamel material from a portion of the coil;
- bending the coil in multiple stages to two-dimensionally form a leg portion and a head portion of a hairpin;
- cutting the coil formed with the leg portion and the head portion by a predetermined length;
- moving the hairpin to be inserted into a stator core while three-dimensionally forming the head portion;
- inserting the hairpin into the stator core;
- and
- press molding the head portion of the hairpin.
Dependencies are inferred from the claim text.