1. Strictly abide by the operating procedures and daily maintenance system
2. The doors of numerical control cabinet and strong current cabinet should be opened as little as possible. Generally, there will be oil mist, dust and even metal powder in the air of machining workshop. Once they fall on the circuit board or electronic devices in the numerical control system, it is easy to cause the insulation resistance between components to drop, and even cause the components and circuit boards to be damaged. Some users open the door of the CNC cabinet to dissipate heat in order to make the CNC system work overload for a long time in summer. This is a highly undesirable method, which will eventually lead to accelerated damage to the CNC system.
3. Regularly clean the cooling and ventilation system of the digital control cabinet, and check whether each cooling fan on the digital control cabinet works normally. Check whether the air duct filter is blocked every half a year or every quarter. If the dust on the filter screen accumulates too much and is not cleaned in time, the temperature in the CNC cabinet will be too high.
4. For the regular maintenance of the input / output devices of the CNC system, most of the CNC machine tools produced before the 1980s are equipped with photoelectric paper tape readers. If the tape reading part is polluted, it will lead to the error of reading information. Therefore, the photoelectric reader must be maintained according to regulations. 5. Regular inspection and replacement of DC motor brushes. The excessive wear of DC motor brushes will affect the performance of the motor and even cause motor damage. For this reason, the motor brush should be checked and replaced regularly. CNC lathes, CNC milling machines, machining centers, etc. should be inspected once a year.
6. Regularly replace the storage battery. Generally, the CNC system has a rechargeable battery maintenance circuit for the CMOSRAM memory device to ensure that the content of its memory can be maintained during the period when the system is not powered on. In general, even if it has not expired, it should be replaced once a year to ensure the normal operation of the system. The battery shall be replaced under the power supply state of the CNC system to prevent the loss of information in RAM during replacement.
7. Maintenance of spare circuit board. When the spare printed circuit board is not used for a long time, it should be regularly installed in the CNC system and powered on for a period of time to prevent damage.
