Thread Content
Most stator winding machines available on the market use electromagnetic brakes to control the stopping position of the winding spindle. Generally, manufacturers adjust the brakes to the proper position at the time of production. However, after some time of operation, due to frequent use and wear of the brakes, issues such as abnormal noises from the brakes and deviations in their stopping position can occur. If it is necessary to wind the coils at specific positions or across slots, such deviations can lead to the enamel-coated wire not being able to fit properly into the slots. Therefore, it is important for users to know the appropriate troubleshooting methods in order to make the most of the performance of the stator winding machine. Let’s first analyze the reasons behind inaccurate parking positions. The primary issue is improper setting of the parameters of the stator winding machine. Under normal operation, the spindle of this machine rotates at high speeds; moreover, due to the load on the frame, the spindle has considerable rotational inertia. If it is necessary to switch from operating mode to stop mode, a buffering process is required. In the settings of the stator winding machine, this corresponds to a slow-stop function. Many users do not pay enough attention to this parameter, resulting in insufficient number of buffering cycles, which prevents the spindle from stopping at the desired position. This also increases the stress on the brakes, and prolonged use can affect their proper functioning and shorten their lifespan. Next is the issue of the brake coil not functioning properly. There are various reasons for this malfunction; for instance, unstable input voltage to the stator winding machine can cause various electrical components to fail to operate correctly. Therefore, stator winding machines typically have a specified operating voltage, and both values below and above this specified voltage can affect the proper operation of the machine. Brake pads also play a role in ensuring proper braking of the stator winding machine. The working principle of an electromagnetic brake is that when the coil is energized, it causes the fixed friction plate to protrude and come into contact with the rotating friction plate, thereby generating braking force. Brakes are wear-prone components, as long-term use leads to varying degrees of wear on the friction plates, which results in a decrease in braking torque. The fixed position of the rotating friction plate also changes over time due to repeated impacts, which in turn affects braking performance. There are many reasons behind the occurrence of parking orientation restrictions, and only through careful analysis can these issues be addressed more effectively. When setting the parameters of the stator winding machine, users should adjust them based on the spindle’s operating speed and the load applied. Generally, the slow-speed stop value should be set between 3 and 5; if the spindle speed is high and the load is heavy, the number of turns should be increased accordingly. It is important to check the voltage of the stator winding machine before starting it up and during operation, to ensure that it operates within the normal voltage range. Both too low and too high voltages can have an adverse effect on the machine. If the voltage in the factory is unstable, it may be necessary to install a voltage stabilizer ； The brakes of the stator winding machine are considered wear-prone components that require regular inspection; they should be replaced after 2 years of normal operation. The distance between the brake plates needs to be adjusted every 3 months, with the adjustment range being 2–3 millimeters.