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

Abstract

The invention discloses a device for twisting the end of the stator of a flat wire motor, which comprises a fixture positioning mechanism for positioning and transporting the stator; The mechanism is used for twisting the flared flat wire; and the base is used for installing the twisting mechanism and the flaring mechanism. The invention also proposes a method for turning the end of the stator of the flat wire motor, which includes the steps of: positioning, turning the head for the first time, and turning the head again. A method for layered flaring of a stator end of a flat wire motor, comprising the steps of positioning, primary flaring, secondary flaring, and the like. By setting the flaring mechanism, the contact surface between the flaring parts and the flat wire is small, ensuring that each wire can be inserted into the twisting die, ensuring the accuracy of the insertion and improving the pass rate of the twisting head, and realizing automatic flaring, both It saves manpower, improves the flaring efficiency, and can ensure the accuracy of wire insertion and improve the pass rate of twisting heads.

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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