A friction stir welding device with a cooling channel for the end face of a motor shell

Abstract

The invention relates to the technical field of friction welding, in particular to a friction stir welding device for the end face of a motor shell with a cooling flow channel. It includes No. 1 base, rotating mechanism, clamping mechanism and push rod mechanism. The rotating mechanism is located at the top of No. 1 base. One end of the No. 1 base is provided with No. 2 base. The clamping mechanism is located at the top of No. 2 base At the top, the push rod mechanism is located at the top of the No. 2 base and at one end of the clamping mechanism: wherein, the rotating mechanism includes a mounting frame connected with the No. 1 base. In the present invention, by setting the push rod mechanism, after the two sections of pipelines are welded, after the clamping mechanism releases a section of pipeline, the push rod mechanism can effectively squeeze the section of pipeline, and during the extrusion and fixing process, the section The pipe will rotate with the rotating disk, so that this section of pipeline and the other section of pipeline remain relatively stationary, thereby avoiding the relative rotation of the two sections of pipeline, thereby reducing the requirements for the performance of the driving motor.

Description

technical field [0001] The invention relates to the technical field of friction welding, in particular to a friction stir welding device for the end face of a motor shell with a cooling flow channel. Background technique [0002] Friction welding refers to the method of using the heat generated by the friction of the contact surface of the workpiece as the heat source to cause the workpiece to undergo plastic deformation under pressure. Under the action of pressure, it is under the action of constant or increasing pressure and torque. The relative movement between the contact end surfaces generates frictional heat and plastic deformation heat on the friction surface and its surrounding area, so that the temperature of the nearby area rises to a temperature range close to but generally lower than the melting point, and the deformation resistance of the material decreases and the plasticity improves. The oxide film on the interface is broken, and under the action of the upsett...

AI Technical Summary

Problems solved by technology

[0004] At present, when the cooling pipes in the motor shell and the cooling pipes outside the motor are connected by friction welding, the requirements for the emergency stop performance of the driving motor are very high, resulting in very high cost of friction welding, which is not easy to popularize; at the same time, the existing devices When clamping the two sections of pipelines, the process is cumbersome and time-consuming, resulting in the inability to further improve work efficiency

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