Ultrasonic riveting system for motor carbon brush sleeve

Abstract

The invention discloses an ultrasonic riveting system for carbon brush sleeves of motors, which comprises a support base, on which a transfer mechanism capable of rotating is arranged, and four positioning mechanisms for carbon brushes are uniformly distributed in sequence on the transfer mechanism, each positioning The mechanism distribution corresponds to one station, and the four stations are the loading and unloading station, the preparation station, the riveting station and the inspection station, among which the on-site identification mechanism for detecting the carbon brush holder and the carbon brush cover is set beside the loading and unloading station , a riveting mechanism is set beside the riveting station, and a carbon brush cover height automatic detection mechanism is set beside the detection station, wherein the riveting mechanism, the carbon brush cover height automatic detection mechanism and the in-position identification mechanism are all fixed on the upper surface of the support seat. The invention adopts a multi-point synchronous ultrasonic riveting method for the combination of the motor carbon brush holder and the carbon brush cover, and an automatic detection and determination method for the height of the carbon brush cover, so as to achieve the goals of accurate riveting point position, improved detection accuracy, enhanced process capability, and improved production efficiency.

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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