A shaft nut assembly device for the rotor core of a new energy motor

By designing an automated rotor core assembly device, the problems of low efficiency and low precision in traditional manual assembly have been solved. It has achieved efficient and precise assembly of rotor cores and shaft nuts, improving production efficiency and quality, adapting to products of different specifications, and promoting the intelligent development of new energy motor production.

CN224459594UActive Publication Date: 2026-07-03HIRATA AUTOMATED MACHINERY (SHANGHAI) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HIRATA AUTOMATED MACHINERY (SHANGHAI) CO LTD
Filing Date
2025-07-09
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Traditional manual assembly of the rotor core and shaft nut of new energy motors is inefficient, inaccurate, and labor-intensive. Automated equipment is complex in structure and has poor adaptability, making it difficult to meet different specifications and lacking real-time detection, which affects the stability of motor operation and production yield.

Method used

Design an automated device that includes a turntable feeding mechanism, a rotor placement and positioning component, a lifting and clamping mechanism, a shaft nut feeding mechanism, a tightening and locking mechanism, and a height measuring mechanism. The entire process is automated through a PLC control system. Combined with a multi-axis robot and an intelligent electric tightening tool, it ensures accurate positioning, digital tightening, and real-time detection.

Benefits of technology

It has improved the production efficiency and precision of new energy motor rotor core assembly, reduced labor costs, enhanced the versatility of equipment and the stability of assembly quality, and promoted the development of new energy motor production towards intelligence and high quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

A device for assembling shaft nuts on the rotor core of a new energy motor includes a floor frame. A turntable feeding mechanism is located at the center of the upper side of the floor frame. Several sets of rotor placement and positioning components and shaft nut placement components are mounted on the turntable feeding mechanism. These components rotate circumferentially with the turntable feeding mechanism, and are arranged in a circular array with staggered arrangement. The floor frame also includes a shaft nut loading mechanism and a tightening and locking mechanism. The loading mechanism places the external shaft nuts onto the shaft nut placement components. After the turntable feeding mechanism rotates to a designated position, the tightening and locking mechanism attracts the shaft nuts from the placement components, and then tightens the nuts onto the shaft of the semi-finished rotor on the corresponding rotor placement and positioning component. This invention has the advantage of improving the processing efficiency of motor rotors.
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