By January 24, 2025 Read More →

Geely turns to Comau for rotor production line

250124_ComauWhen the Geely Group needed to ramp-up production of its high-quality electric drive components, Comau was tasked with developing and deploying a new e-drive assembly line that would guarantee high-speed, end-to-end production of the electric motor, gearbox and inverter at its Geely Vremt plant.

Comau provided Geely with a powerful process solution using multiple robots to install the motor rotors. The automated line also features 3D vision positioning and guidance, automatic high-speed magnet installation, automatic injection of rotor cores and the automatic dual-position dynamic balance correction, magnetisation – all of which contributes to ensuring higher quality and better throughput in less time.

Comau’s electrification solutions are further strengthened by decades of expertise and successful delivery of turnkey rotor production lines. For example, the automated magnet insertion solution integrates vision systems and pressure monitoring to prevent misalignment or missing magnets. Real-time depth detection ensures precise positioning during the insertion process, meeting stringent quality standards. Additionally, a multi-gripper design supports simultaneous pick-and-place operations, reducing the cycle time per magnet to under three seconds while maintaining extremely high accuracy.

Furthermore, to accommodate diverse product requirements, Comau provides multiple rotor fixation methods, including adhesive dispensing, plastic injection, and potting. Its custom-designed dispensing nozzles surpass conventional designs by ensuring precise adhesive application, even in narrow magnet slots. This approach guarantees uniform sidewall coverage while preventing overflow, enhancing rotor durability and performance under high-speed operating conditions.

The production lines also feature automatic balancing technologies, utilising high-precision components for weight addition and removal calibration. This ensures seamless adaptability across various products while maintaining equipment accuracy. Another benefit of the solution is its full compliance with stringent NVH (Noise, Vibration, and Harshness) standards, which can contribute to improved bearing longevity.

Finally, the core shaft assembly process integrates advanced methods, combining liquid nitrogen cooling with rotor core heating to minimise assembly resistance. A pressure feedback system ensures consistent quality and dependable performance for every unit produced. These methods exemplify Comau’s commitment to integrating cutting-edge technologies that enhance both product quality and operational efficiency.

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