English Author: Site Editor Publish Time: 2026-03-12 Origin: Site
Ⅰ.Establish a complete maintenance file
Record the phenomenon of each fault, the troubleshooting path, the solution, as well as the time and content of maintenance and upkeep, to form an internal knowledge base of the enterprise. By analyzing historical data, the patterns of equipment failures are identified, and the maintenance process is optimized in a targeted manner to reduce the failure rate of the equipment. For instance, a certain factory, by analyzing historical data, found that 80% of the alarms caused by the grating ruler were due to loose interfaces. After optimizing the maintenance process specifically, the downtime was reduced by 40%.
Ⅱ.Regularly carry out preventive maintenance
Maintenance of mechanical parts
Geometric accuracy inspection: Regularly inspect the geometric accuracy of each axis according to the geometric accuracy table of the CNC machining center. For cases with small errors, adopt parameter compensation methods. When the errors are large, make adjustments from the mechanical aspect to ensure the processing accuracy of the equipment.
Maintenance of the main shaft components: Regularly check the axial play and radial runout of the main shaft. If they exceed the precision requirements, disassemble the main shaft in time, replace the worn bearings and reassemble and debug to restore the accuracy of the main shaft. At the same time, regularly change the lubricating oil of the spindle box and clean the taper holes of the spindle to prevent chips and debris from entering.
Maintenance of guide rails and lead screws: Regularly clean the guide rails and lead screws, add lubricating oil that meets the requirements, check the wear of the guide rails, and replace the wear-resistant plates of the guide rails if necessary. Check the preload of the lead screw to ensure its transmission accuracy.
2.Maintenance of the electrical part
Grid voltage detection: Regularly detect the grid voltage to ensure it is within the allowable connection range of the numerical control system, avoiding damage to electrical components due to voltage fluctuations.
Electrical component inspection: Regularly inspect the temperature and vibration conditions of electrical components such as servo motors, drivers, PLCS, and CNC devices. Check if the connecting wires are loose or aged, and replace damaged electrical components and connecting wires in a timely manner.
System parameter backup: Regularly back up the parameters and processing programs of the numerical control system to prevent equipment failure caused by parameter loss or program errors.
Ⅲ. Optimize the operating environment of equipment.
Control the temperature and humidity in the workshop. The recommended range is a temperature of 20±2℃ and a humidity of no more than 70%. This is to prevent electrical components from getting damp and damaged due to excessive environmental humidity and poor heat dissipation of equipment due to excessively high temperatures. Clean the filter screen of the controller's heat dissipation holes every month to ensure that the air flow rate is ≥0.5m³/min, guaranteeing the heat dissipation effect of the equipment. At the same time, prevent the equipment from being contaminated by dust, oil stains, etc., and regularly clean and maintain the equipment.
