Manufacturing device of stator with skewed slots

Abstract

The invention provides a manufacturing device of a stator with skewed slots, by which the torsion degree can be freely adjusted and the thickness of the stator core is uniform in the laminating direction in engagement. The manufacturing device of the stator with the skewed slots comprises a base for carrying an end face of the stator core; a pin which is detachable from the base and is vertically arranged in a tilt moving manner, and is inserted through slots or slits which are communicated in the axial direction of the stator core; a plurality of columns which are vertically arranged on the base surrounding the stator core; a pressure component which is arranged at terminals of the plurality of columns and abuts against the other end face of the stator core such that the stator core is pressed; an operation component which is arranged on the other end face side of the stator core and stops the top end of the pin; an operation handle arranged on the operation component for rotating the operation component about a central shaft of the stator core; and preferably a plurality of annular plates preventing the pin from escaping from the slots.

Description

technical field [0001] The present invention relates to a manufacturing device of a stator with skewed slots, wherein a coil is attached to a stator core formed by laminating magnetic metal sheets, and the metal sheets are gradually shifted by being twisted. Background technique [0002] Conventionally, a stator of a rotating electric machine has a cylindrical stator core having a plurality of teeth (magnetic poles) arranged radially and protruding radially inward, and a plurality of slits opened between the teeth, and a stator coil. The stator coil is attached to the stator core by accommodating the coil edge portion in the slit. The stator core is formed by laminating a plurality of magnetic metal sheets, the stator coil is manufactured separately from the stator core, and then the annular stator coil is accommodated in each slit of the stator core. [0003] On the other hand, there is known a stator manufacturing method in which a rotor (rotator) is inserted into such a ...

AI Technical Summary

Problems solved by technology

However, even in a stator core formed by laminating a predetermined number of magnetic metal sheets, if a gap is formed between the magnetic metal sheets, the thickness in the stacking direction will vary.

Therefore, there is a problem that even if a desired twist is applied, when a plurality of magnetic metal pieces are joined to each other in a state where the thickness in the stacking direction varies, it is difficult to obtain a stator with a skewed slot of uniform quality.

Moreover, there is no description in Cited Documents 1 and 2 regarding the method of controlling the difference in thickness when the stator core 1 is joined.

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