Commonly used CNC machine tool maintenance methods: CNC equipment maintenance is a very complicated, high-tech work, CNC equipment and general equipment are quite different. 1, using the self-diagnosis function of the CNC system The general CNC system has a relatively complete self-diagnosis system. Whether it is a FANUC system or a Siemens system, the CNC system can make a certain range of self-diagnosis for itself or the interface during power-on initialization or operation. Maintenance personnel should be familiar with the system self-diagnosis of various alarm information. According to the specification, the fault range is determined to locate the faulty components. For the imported CNC system, the board level can only be positioned to the board level. The chip level maintenance can generally rely on the after-sales maintenance department of each CNC system. 2. Use the logical lookup of the PLC program. Now the general CNC control system has a PLC controller, mostly built-in PLC control. The maintenance personnel should analyze the machine control electric appliance according to the ladder diagram, and visually see the state of the CNC system I/O on the CRT. Through the logic analysis of the PLC program, the imported pump conveniently checks the location of the problem, such as the self-diagnosis page in the FANUC-OT system. According to the drawing PLC ladder diagram, the interface between the machine tool and the CNC system is faulty to determine whether the fault location is mechanical, electrical, hydraulic or pneumatic. 3. Communicate fully with the operators on the spot The field operator is the closest partner of CNC machine tools, and the operator is also the first discoverer of various faults. Therefore, after the fault occurs, the maintenance personnel should generally not rush to start, fully communicate with the operator first, and carefully inquire about the working state, the form of the machine, the consequences, whether it is a misoperation, the fault can be caused when the fault occurs. No reproduction, etc., which helps maintenance personnel to quickly analyze and determine the cause of the failure. DONGYAN INTERNATIONAL CO LTD , https://www.topcutools.com