Hairpin type stator coil forming method

A method for forming a hairpin type of stator coil, the method comprising:

• cutting a material coil to a predetermined length;
• forming a vertex and inclined portions on the material coil;
• loading the vertex and the inclined portions so as to be interposed between an upper mold and a lower mold;
• forming the inclined portions into a front/rear bent portion so that the inclined portions are positioned on different lines based on the vertex by combining the upper and lower molds;
• loading ends of the inclined portions into first and second clamping parts so as to be interposed between first and second clamping pins;
• and
• rounding the inclined portions by rotating the first and second clamping parts relative to each other,
• wherein cutting the material coil and forming the vertex and the inclined portions comprise:
• entering the material coil into an upper portion of a lower central die;
• cutting the material coil using a cutting part disposed at a rear side of an entry direction of the material coil;
• forming the vertex and the inclined portions on the material coil along a forming surface by moving a moving bracket downward such that a spring part press-fits the material coil to the forming surface of the lower central die;
• and
• moving the moving bracket further downward so that an upper roller part press-fits the material coil along lower left and right dies.