Maintenance Method and Practice of Electrical Equipment of CNC Machine Tools
1 Introduction
CNC machine tools refer to the equipment that uses computer to control the movement track of cutting tools and cutting parameters to obtain the required parts. The automatic control of CNC machine tools greatly improves the machining accuracy and product quality of workpieces. However, due to the complexity and variety of components and systems, the maintenance of electrical devices of CNC machine tools is very important. Since maintenance is an important part of production, the timely and effective maintenance of CNC machine tools has a great impact on the production of enterprises.
2. Failure Causes of Electrical Equipment of CNC Machine Tools
The failure of electrical equipment of CNC machine tools is caused by factors such as overload and overvoltage, or because the seal of the internal parts is not tight, resulting in water entering the elecrical equipment and the parts getting wet. It can also be caused by power supply interruption or power supply problems, as well as improper installation of operating elements. Therefore, preventive measures must be taken to reduce the occurrence of electrical equipment failures.
3. Maintenance Practices of Electrical Equipment for CNC Machine Tools
3.1 Daily Maintenance
Daily maintenance is the most basic and most important maintenance work to prevent failures and reduce failures of electrical equipment of CNC machine tools. Regularly clean, check and maintain electrical equipment. Pay attention to external environmental hygiene. During daily inspection, check the connection status and fastening condition of electrical components and conducting parts, control console keyboard and installation of protective cover, and check whether the electrical parts of machine tools are normal.
3.2 Overload Protection
Overload protection refers to preventing machine tools from abnormal operation caused by overload and overvoltage. Therefore, when the internal protection of the machine tool device fails, manual protection should be taken in time to avoid overload and overvoltage.
3.3 Waterproof Treatment
Usually, waterproof treatment should be done in time before and after the rainy season, or when the power supply and the control box of electrical equipment need to be moved or opened. When carrying out waterproof treatment, the case should be opened first and inspected for leakage. If there is any leakage, the seal ring should be tightened or replaced immediately.
3.4 Power Line Inspection
A special person should be responsible for the inspection and maintenance of power lines. Pay attention to the insulation level of input and output wires, the tightness of wires, and the insulation of machine tools. The copper core wires and connectors should be regularly inspected and replaced in time to ensure safety.
3.5 Periodic Maintenance
Periodic maintenance is an important part of maintenance of CNC machine tools, which mainly includes hardware maintenance, software maintenance, mechanical parts wear and fatigue testing, etc. If necessary, the machine tools electrical system should be debugged and calibrated to ensure the accuracy of machine tools movement track and cutting parameters.
4 Conclusion
CNC machine tools are the basic tools for modern production. Regular maintenance of electrical equipment of CNC machine tools is necessary in order to maintain the normal operation of machine tools and extend its service life. Only by doing a good job in daily maintenance and regular maintenance can we better reduce the failure rate of CNC machine tools.
