Motor stator coil reshaping method and device

Abstract

The invention relates to a motor stator coil reshaping device which comprises a reshaping clamp, a driving mechanism, a transverse motion mechanism and a longitudinal motion mechanism, wherein the reshaping clamp comprises a left flange, a rolling wheel, a right flange, a fixed mandrel and a roller assembly; the right flange is fixed to the moving member of the transverse motion mechanism; the fixed mandrel is fixed on one side of the axial line of the right flange; the left flange is connected with the driving shaft of the driving mechanism; the rolling wheel is fixed on one side of the axial line of the left flange; the rolling wheel and the fixed mandrel are arranged on the same axial line; the left flange is over against the right flange; the roller assembly is fixed on the moving member of the longitudinal motion mechanism; and the roller is over against a position between the left flange and the right hand flange. Conductors in the reshaped coil are compact, can not easily loosen, and have the advantages of favorable dimensional uniformity and small degree of roundness. The invention increases the percent of pass of stator reshaping, and maximally reduces the slippage between the roller and the coil, thereby reducing the damage of the roller on the insulating layer of the coil. The invention has the advantages of simple reshaping operation, high reshaping efficiency and good product quality.

Description

technical field [0001] The invention relates to a shaping method and a shaping tool for a motor stator coil. Background technique [0002] Such as figure 1 As shown, the motor stator is composed of an iron core 17 and a coil 171 wound on the inner teeth of the iron core. When the coil 171 is wound on the inner teeth of the iron core, the shape of the inner, outer and exposed ends of the coil 171 is very important. If the shape is not suitable, it will affect the stator into the rotor, that is, the rotor cannot be installed or the rotor will be damaged after the rotor is installed. operation has an impact. In addition, when the stator is installed on the casing, the outer diameter and ends of the coil are likely to interact with the casing, which may even cause short circuit or failure of the stator. Therefore, the stator needs to be reshaped every time the coil is wound. [0003] There are two existing methods and equipment for shaping the stator coil of a motor. One is t...

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Problems solved by technology

[0005] The above two methods and equipment have common disadvantages: because the stator is stationary, when the periphery of the stator coil is squeezed by tooling, the wires in the stator coil cannot continuously slip in the circumferential direction, so the coil is not easy to be regular, and the coil arrangement is not dense and easy to spring back , the size tolerance is large, the inner and outer diameters of the coil are round, and at the same time, due to this rigid extrusion, the wires in the coil are hindered from slipping in the circumferential direction, and the wires in the coil are easily crushed and folded, resulting in easy damage to the insulation layer of the wires , affecting the qualified rate of stator shaping and the installation and use of subsequent processes

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