Fixture changeover and angular positioning tooling and method for the peripheral surface of stator iron core

Abstract

The invention provides a stator core peripheral face clamp die change and angular direction positioning tool. The upper end face and the lower end face of a positioning ring are provided with an upper positioning rabbet and a lower positioning rabbet respectively. The upper positioning rabbet is connected with a lower end face rabbet of a stator core. The lower positioning rabbet is connected with an upper end face rabbet of a stator core peripheral face clamp. The side face of the positioning ring is provided with two symmetrically-arranged angular direction flushed planes. Angular direction positioning blocks are installed on the angular direction flushed planes respectively. The upper ends of the angular direction positioning blocks fit the side plane of the lower end of the stator core. The lower ends of the angular direction positioning blocks fit the side plane of the stator core peripheral face machining clamp. The upper end and the lower end of each angular direction positioning block are provided with an upper puller bolt and a lower puller bolt respectively. The upper puller bolts abut against the side plane of the lower end of the stator core so that angular direction positioning of the stator core and the positioning ring can be achieved. The lower puller bolts abut against the side plane of the stator core peripheral face clamp so that angular direction positioning of the positioning ring and the stator core peripheral face can be achieved. The invention further provides a stator core peripheral face clamp die change and angular direction positioning method.

Description

technical field [0001] The invention relates to the technical field of stator core processing, in particular to tooling for mold change and angular positioning of fixtures on the peripheral surface of stator cores. The invention also relates to a mold changing and angular positioning method for the fixture on the peripheral surface of the stator iron core. Background technique [0002] At present, in order to improve the accuracy of AC traction motor products, both at home and abroad, its product development tends to be serialized and modularized, and the design of key components such as stator cores is similar, and its processing technology has not changed much. For stator cores of the same diameter, the stator core seam may vary in size due to the interface size and the size of the motor itself. During the processing, a special fixture corresponding to the stator core seam size must be used to connect the stator core seam. And the stator core is fixed angularly, so that t...

AI Technical Summary

Problems solved by technology

[0004] The invention aims at changing the size of the stator core to be processed in the prior art, that is, replacing the corresponding fixture for the outer surface of the stator core. The cost of making the fixture for the outer surface of the stator core is high and difficult, and the process is cumbersome. In order to solve the technical problem of low positioning accuracy, the peripheral surface fixture of the stator core is provided for mold change and angular positioning tooling. When the size of the stator core to be processed changes, there is no need to replace the fixture for the peripheral surface of the stator core, and the peripheral surface of the stator core can be realized. The rapid mold change of the fixture and the precise angular positioning of the fixture between the stator core and the outer surface of the stator core improve the working efficiency and machining accuracy of the machine tool to process the stator core

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