From Stator Wire To Rotor Automatic Line: Analysis Of The Production Process Of Industrial Water Pump Motors

As a key fluid conveying equipment, industrial water pumps are widely used in metallurgy, electricity, chemical industry, municipal engineering and other fields. Its core power component, the motor, directly determines the operating efficiency and reliability of the water pump. In order to ensure the quality and consistency of the motor, the production process of modern industrial water pump motors has been highly automated, especially the technological innovation on the stator wire and rotor automatic line, which has significantly improved the production efficiency and product performance.

1. Stator production line: Achieve high-precision coil assembly

The stator is the stationary part of the motor, which contains coil windings inside and is a key component for generating a magnetic field. Its automated production process mainly includes the following links:

Core lamination and pre-assembly: A fully automatic lamination machine is used to stack silicon steel sheets at high speed to form a stator core with high dimensional accuracy and dense stacking.

Slot insulation insertion: A slot insulation insertion machine is used to accurately insert the insulation material into each slot to prevent the winding from short-circuiting the core.

Automatic winding: The servo-controlled winding machine automatically winds the coil according to the set program, maintaining uniform tension and ensuring that the coil is neat and orderly.

Coil embedding (insertion): The wire insertion machine accurately presses the pre-wound coil into the stator slot to avoid damaging the insulating enameled wire.

End shaping and binding: The coil is shaped and fixed by the forming machine and the binding machine to improve the stability and vibration resistance of the winding.

Dipping and drying: Dipping improves the insulation performance, and after drying and curing, a solid protective layer is formed to improve the durability of the stator.

2. Rotor automatic line: ensure the smooth operation of the motor

As the rotating part of the motor, the rotor usually includes a shaft, an iron core and a cast aluminum (or winding) structure, which must have good dynamic balance and mechanical strength.

Iron core lamination and pressing: The rotor iron core is stacked by a high-speed stamping machine and pressed on the rotating shaft to form a basic structure.

Cast aluminum or winding process: Asynchronous motors mostly use aluminum rotors, and automatic casting equipment injects aluminum liquid into the iron core slot; for wound rotors, automatic winding and welding are required.

Finishing machining: After the aluminum casting is formed, both ends need to be machined by lathe to ensure the size accuracy and concentricity of the rotor.

Dynamic balancing detection and correction: Automatic dynamic balancing equipment detects and removes unbalanced parts to ensure that the rotor does not shake when running at high speed.

Shaft assembly and inspection: Bearings, keyways and other components are assembled at both ends of the shaft, and coaxiality and hardness tests are performed to ensure assembly quality.

3. Intelligent collaboration: Build an efficient and reliable production system

Modern stator lines and rotor lines are equipped with intelligent control systems, which can collect key parameters such as temperature, current, tension, speed, etc. in real time, and achieve full process traceability and quality control through the MES system. Data sharing between equipment and automatic loading and unloading systems form a flexible linkage, greatly shortening the changeover time and improving the production capacity of small batches of multiple varieties.