A pretensioning device for stamping and lamination processing of electric motor stator

Abstract

The present invention relates to a pre-tensioning device for stamping and stacking processing of motor stators, which includes a workbench, a lifting support mechanism, a limit clamping mechanism, a lifting support mechanism and a pre-tensioning mechanism. The pre-tensioning mechanism includes a The pre-tightening cylinder on the lifting beam plate, the support plate connected to the output end of the pre-tightening cylinder, four guide rod assemblies vertically arranged on the support plate, horizontally connected at the bottom of the four guide rod assemblies The pre-compression plate at the end and the four top ball assemblies arranged on the pre-compression plate. The pre-tensioning device provided by the present invention can perform pre-compression pressing after the motor stator is punched and laminated. The axial pre-tension force makes the motor stator The punches are tightly attached to each other, which can avoid misalignment after stacking, reduce the probability of re-alignment, and reduce the trouble caused to the subsequent assembly process.

Description

technical field [0001] The invention relates to the technical field of assembly and processing of motor parts, and specifically proposes a pretensioning device for stamping and stacking processing of motor stators. Background technique [0002] Motor stators are an important part of motors such as generators and starters. The stator is composed of three parts: stator core, stator winding and frame. The main function of the stator is to generate a rotating magnetic field, while the main function of the rotor is to be cut by the magnetic force lines in the rotating magnetic field to generate current. The stator core can be a monolithic structure, or it can be made by stacking stator core materials; the stator core materials can be formed by die-casting or stamping; After the assembly is completed, there is often no pre-tightening treatment, so that the laminated stator core materials cannot be tightly bonded. In addition, it is easy to misalign again after lamination. After ...

AI Technical Summary

Problems solved by technology

The stator core can be a monolithic structure, or it can be made by stacking stator core materials; the stator core materials can be formed by die-casting or stamping; After the assembly is completed, there is often no pre-tightening treatment, so that the laminated stator core materials cannot be tightly bonded. In addition, it is easy to misalign again after lamination. After the misalignment occurs, it needs to be rearranged and aligned, which will cause Inconvenient trouble for the subsequent assembly process

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