How to maintain the common components of the vertical machining center at Dongguan CNC Precision Machining Factory?

The vertical machining center of Dongguan CNC Precision Machining Factory, as a highly automated processing equipment, can experience various malfunctions during prolonged use or improper handling. Therefore, it is necessary to carry out daily maintenance and upkeep.

1. Vertical machining center servo motor and spindle motor parts

The servo motor and control system are key components of the power source and precision control of machine tools, with a focus on inspecting noise and temperature rise. If the noise or temperature rise is too high, it should be found out whether it is a mechanical problem such as bearings or a matching amplifier parameter setting problem, and corresponding measures should be taken to solve it. If there is abnormal noise during the movement of the servo shaft, it may be caused by mechanical noise such as screw, coupling, and misalignment with the servo motor. The motor of the vertical machining center can be disconnected from the coupling and operated separately. If the motor still has noise, adjust the speed loop gain and position loop gain appropriately to silence the motor. If there is no noise, it is judged that there is a problem with the concentricity of the screw and coupling. Recalibrate the concentricity, and then connect the motor to generally eliminate the problem.

2. Vertical machining center measurement feedback element

The measurement feedback components include encoders, grating rulers, etc. It is necessary to regularly check and detect whether the connections of each component are loose and whether they are contaminated by oil or dust. Dust and fine iron filings may damage these components.

3. Electrical control part of vertical machining center

Regularly check whether the external three-phase power supply voltage connected to the machine tool is normal; Check if the electrical components are properly connected; Display the diagnostic screen using CRT and check whether various switches are effective; Check if the relay and contactor are working properly and if the contact is good; Whether the protective components such as thermal relays and arc suppressors are effective; Check if the temperature of the components inside the electric cabinet of the vertical machining center is too high. For poor contact of the contactor, the contactor can be disassembled, the high-temperature oxide on the surface of the contactor can be removed with a small file, and then the impurities can be wiped off with absorbent cotton and alcohol, reassembled, and the contacts checked with a multimeter. Continuity testing.

4. Vertical machining center CNC system control part

The control system includes CNC units, power modules, I/O interfaces, servo amplifiers, spindle amplifiers, operation panels, displays, etc. Maintenance mainly involves checking whether the relevant voltage values are within the range specified by Dongguan CNC Precision Processing Plant CNC; Whether the connection of electrical components is loose; Check if the fans of each functional module are functioning properly and remove dust from the fans and dust screens.