JPS54113802A - Constructing roatary machine stator coil and apparatus - Google Patents

Abstract

PURPOSE: To prevent a coil end from damage at the time of forming work, with said forming work facilitated as well, by such manner of effecting a construction of the coil end part that, with an elastic unit touching to the stator coil end at its inside diameter side, a pressure be applied to the above making an expansion.

CONSTITUTION: After a stator 1 has been set onto a core holding fixture 13, a forming mechanism unit 15, comprising a bullet-shape guide 16, an elastic unit 19 and a guide plate 18, is pressed into the inside diameter side of a coil end 1a by a cylinder 14 from both ends of the stator 1. Because a bolt 20 for adjustment is provided in the point end of the bullet-shape guide 16 of one of the forming mechanism units 15, a movement of said bullet-shape guide 16 stops at a prescribed position, and the pressing force, thereafter, is applied by the cylinder 14 through the guide plate 18 toward the direction of axis of the elastic unit 19, causing the elastic unit 19 to expand toward the direction of outside diameter, capable of forming the coil end 1a. In such manner of forming, a use of the elastic unit 19 can eliminate a damage of the coil with the forming mechanism 15 simplified as well.

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