Device and method for twisting end part of stator of flat-wire motor

Abstract

The invention discloses a device for twisting the end part of a stator of a flat-wire motor. The device comprises: a clamp positioning mechanism used for positioning and transporting the stator; a flaring mechanism used for enabling the end part of a stator coil to move along the radial direction of a stator iron core; an end twisting mechanism used for twisting a flared flat wire; and a base usedfor mounting the end twisting mechanism and the flaring mechanism. The invention further provides a method for twisting the end part of the stator of the flat-wire motor. The method comprises the steps of positioning, primary twisting and secondary twisting. The invention also discloses a method for layered flaring of the end part of the stator of the flat-wire motor. The method comprises the steps of positioning, primary flaring, secondary flaring and the like. By arranging the flaring mechanism, a contact surface of a flaring part and a flat wire is small, so it is guaranteed that each wirecan be inserted into an end twisting die, the accuracy of wire insertion is guaranteed, and the percent of pass of twisted ends is increased; and full-automatic flaring is achieved, so manpower is saved, flaring efficiency is improved, the accuracy of wire insertion can be guaranteed, and the percent of pass of twisting ends is increased.

Description

technical field [0001] The invention relates to the technical field of motor assembly equipment, in particular to a device and method for twisting the stator end of a flat wire motor. Background technique [0002] As the country vigorously promotes energy conservation and environmental protection, new energy vehicles have developed rapidly. As the core component of new energy vehicles, the drive motor plays a vital role. Wherein, during the assembly process of the driving motor, it is necessary to perform layered twisting on the stator of the driving motor. [0003] As the new energy vehicle drive motor stator requires more and more layers of flat wires (currently up to 8 layers), the mold slots corresponding to the stator flat wires have also doubled, and if a wire cannot be inserted into the mold, it will cause The failure of twisting the head, more layers of stator flat wires greatly increases the difficulty of turning the head, and it is required to ensure the accuracy...

AI Technical Summary

Problems solved by technology

[0003] As the new energy vehicle drive motor stator requires more and more layers of flat wires (currently up to 8 layers), the mold slots corresponding to the stator flat wires have also doubled, and if a wire cannot be inserted into the mold, it will cause The failure of twisting the head, more layers of stator flat wires greatly increases the difficulty of turning the head, and it is required to ensure the accuracy of the insertion line during production

[0004] The existing technical solutions are aimed at a small number of stator flat wire layers, generally 4 layers, and most of them are semi-automatic equipment. Manual tooling is required for the expansion, and manual assistance and confirmation are required when the flat wire is inserted into the mold.

[0005] However, manual tooling is used for flaring, which is inefficient and less stable. During the flaring process, it is easy to damage the paint film of the flat wire. Because the flaring consistency is not good, it is necessary to manually insert the wire and confirm it before turning the head. , which greatly affects the tempo of the production

[0006] For example, U.S. Patent No. 11 / 728258 discloses a method and device for removing wires from a twister and placing them in a rotor or stator group, which realizes the functions of wire insertion and twisting, but the device and method are difficult to handle the ends of multilayer coils the twist

[0007] For another example, Chinese patent CN201810909022.8 discloses a generator HP flat wire stator automatic wire insertion and head twisting equipment, which is used to realize the insertion and up and down twisting of copper wires in the HP flat wire stator, but the equipment does not have the ability to handle multi-layer coils Function of end twist

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