How to Inspect and Accept Motor Stator Winding Machine Equipment

The quality of an electric motor is largely determined by the winding of its stator coils. Currently, the most commonly used winding equipment is the fully automatic motor stator winding machine. So how do you evaluate the quality of such equipment? What are the key inspection items?

1. Visual Inspection Method

During unboxing and assembly of the motor stator winding machine, inspect the overall appearance, material quality, and configuration of all components to ensure they match the contract specifications. Pay particular attention to the drive motor, indexing motor, wire-laying mechanism, electrical control system, and display screen.

2. Installation and No-Load Operation Test

After installing the machine and molds, test stability with approximately 30 minutes of no-load operation. Monitor component performance and temperature changes. Run at both high and low speeds to ensure all parts operate smoothly. Verify slot-crossing accuracy, forward/reverse positioning precision, and check tensioners/guide wheels for smooth operation. Conduct multiple trials and produce several stator samples for comparison.

3. Wire-in Inspection of Motor Stator Winding Machine Operation

Verify the winding program accuracy, winding method correctness, turn count precision, and counting reliability. Monitor the accuracy of the wire-laying and winding mechanisms. Compare against the configured process parameters to assess whether the wound stator samples exhibit neatness and compactness.

4. Stator Sample Testing

Produce multiple samples using the newly installed motor stator winding machine. Conduct saltwater testing to verify leakage current values meet product requirements (typically below 20mA, though some specifications may be stricter). Additionally, perform tests for interturn leakage, inductance, rotation direction, and withstand voltage to ensure all parameters comply with standards.

The above outlines common acceptance criteria for motor stator winding machines. Understanding these methods ensures the machine's stability and usability, preventing post-installation issues.