| 摘要 |
PURPOSE:To simplify the tightening and fixing work and to facilitate the automation of the manufacture in the die casting process by inserting a temporary mandrel in the center hole of a laminated core, performing the skewing work, compressing a split ring to the mandrel, tightening and fixing the laminated core, and sending the material to the die casting process. CONSTITUTION:The temporary mandrel 2D is inserted into the outer hole 3 of the laminated core 1 of the rotor, and the skewing work is performed. With said laminated core 1 being compressed in the axial direction, the aplit ring 6D is compressed to the mandrel 2D from its end, and the laminated core 1 is tightened and fixed. Said laminated core 1 is enclosed in the die cast metal molds 11, 12, and 13, fused aluminum is cast, and rotor bars 14 and an end ring 15 are formed as one body. In this constitution, the tightening and fixing work of the core 1 becomes easy, and the removal of the mandrel 2D becomes easy after the die casting process. Therefore, manufacturing can be automated. |
