Ultrasonic riveting system for motor carbon brush sleeve

Abstract

The invention discloses an ultrasonic riveting system for a motor carbon brush sleeve. The ultrasonic riveting system comprises a supporting base, wherein a transfer mechanism which can perform rotarymotion is arranged on the supporting base; four carbon brush positioning mechanisms are uniformly distributed on the transfer mechanism in sequence, and each positioning mechanism corresponds to onestation in distribution; the four stations are separately a loading and unloading station, a preparing station, a riveting station and a detecting station; an in-place identifying mechanism for detecting a carbon brush rack and the carbon brush sleeve is arranged at one side of the loading and unloading station; a riveting mechanism is arranged at one side of the riveting station; a carbon brush height automatic detecting mechanism is arranged at one side of the detecting station; and the riveting mechanism, the carbon brush height automatic detecting mechanism and the in-place identifying mechanism are fixedly arranged on the upper surface of the supporting base. Targets of being precise in riveting point positions, improving detecting precision, improving process capability, improving production efficiency and the like are realized by adopting a multi-point synchronous ultrasonic riveting mode for an assembly of the motor carbon brush rack and the carbon brush sleeve and adopting anautomatic detecting and judging method for height of the carbon brush sleeve.

Description

technical field [0001] The invention relates to the technical field of motor processing, in particular to an ultrasonic riveting system for a carbon brush cover of a motor. Background technique [0002] Currently, different types of motors have been widely used in many fields. Among them, the assembly position and connection method of the carbon brush holder and carbon brush cover in the motor assembly have an important impact on the working state of the motor. Therefore, the assembly and connection state of the carbon brush holder and carbon brush cover is a key factor for the quality of the motor product. The general assembly and connection method is not easy to guarantee its assembly accuracy and connection firmness. [0003] At present, the assembly and connection methods of motor carbon brush holder and carbon brush cover mainly include hot-melt riveting method and ultrasonic riveting method. It directly affects the assembly accuracy and overall performance of motor c...

AI Technical Summary

Problems solved by technology

First of all, due to the center position deviation of each rivet post during the melting process, the accumulated position deviation of the four rivet posts on the carbon brush holder is relatively large and difficult to eliminate, which makes it difficult to ensure the riveting accuracy of the carbon brush holder and carbon brush cover

Secondly, due to the difficulty in controlling the temperature of each riveting head and riveting point by the hot-melt method, it is difficult to control the firmness of the multi-point riveting of the carbon brush cover and the carbon brush holder, which in turn affects the quality and overall performance of the motor product

In addition, the heat energy (electrical energy converted into heat energy) loss ratio in the hot riveting method is relatively large, which is not conducive to energy saving and consumption reduction

[0005] In the detection of the height of the carbon brush cover after riveting, it is detected manually through special tooling and mechanical measuring tools, so there are problems such as low detection accuracy and low detection efficiency

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