Cnc machining center manufacturer's maintenance guide's servo motor disassembly and assembly skills:
Servo motors are undoubtedly one of the core power components of CNC machining centers. Generally, manufacturers will repair them for free during the warranty period. In addition to the warranty period, CNC machining center manufacturers are generally responsible for repairs. Due to the high cost (maintenance personnel’s Travel expenses, wages, etc.) Users generally have their own CNC machining center maintenance personnel. When the servo motor fails, the problem of disassembly and assembly of this kind of motor is often encountered. It is not difficult to say, but it is not easy to say This is really a little tricky, this article specifically talks about how to disassemble the servo motor.
1. How to disassemble the servo motor: Use a single-sided flat chisel (for woodworking), or a self-made sharp flat shovel, to grind a 30-degree knife edge on the grinding wheel: make the inner hole of the servo motor stator core face up, and cushion it firmly: It is better to insert a thin iron plate between the winding end and the casing to prevent the base from being damaged by excessive hammering:
2. Carefully use tools to take out the coils for easy inspection: cut off the coil end of the winding extension along the end face of the iron core. When cutting off the end of the coil, the chisel must be close to the iron core, so that the winding cut or section is as flush as possible with the end surface of the iron core slot.
3. Small method in the process of disassembly and assembly: the operation must be safe and not to damage the stator core. If necessary, cut off the ends of the coils on both sides of the winding for easy disassembly. You can also connect the three-phase windings of the servo motor into an open triangle before cutting off the ends of the coils, or connect the phase-by-phase windings to the AC power supply (220V or 380V). Anything). Heat the windings and burn the windings to smoke, that is, cut off the power supply, so that it is easier to disassemble. If the winding temperature is not enough to soften the insulation, the number of coils in the series winding can be appropriately reduced, that is, the connecting wire ends between the pole phase groups are removed to allow the power supply voltage to pass into the pole phase groups.
On the whole, there is not much mystery when the CNC machining center is repaired. The repair of this electronic and CNC product is mainly to be careful. It is important to understand the assembly drawings. Of course, if it can't be very good. To master this technique, contact professional maintenance personnel as soon as possible.
