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The tool holder cannot be changed normally for 1 yuan, the device is damaged 2 lines, and the cable connection is poor. The tool holder does not have a signal detection system in place that fails. The knife frame rotates continuously. 1 The signal line of a certain tool position falls off. 2 Hall element burnout: Axis (diameter 1. Workpiece x,: Axis machining ruler 1 machine tool working accuracy exceeds the standard direction, axial direction) Feed inch is not allowed 2 zero , parts loose system. x or: axis alarm element, device damage. The x or z axis returns to zero and the main moving parts are not allowed to return to zero. x or: axis overtravel indexing, shift overtravel. Second or: The feed is not normal and the parts are damaged. The power supply has no power supply 1 fuse disconnected, the air switch jumps 2 yuan, the device is damaged 3 lines, the cable connection is bad 4 lines, and the cable is open W. CNC parameter error, alarm CNC memory function is disordered. The CNC hardware function is abnormal and the cNC hardware is damaged. The machine tool cannot return to zero. The main moving parts are not returned to zero. cNC system can not work or 1 CNC system without power supply is not working properly 2 connection line broken 3 connector has fallen off V. Electrical department
The machine tool can't work normally. 1 The fuse is broken, the air switch jumps 2 yuan, the device is damaged. 3 The operation panel is damaged. 4 lines, cable connection is bad. The machine tool can't start the line, the cable open circuit is eager to replace the "hard" piece, but should be from the "soft" piece. (3) Fault caused by external hardware damage One Siemens 810T CNC vertical lathe is used. When the tool holder moves up and down, the oil inlet pipe at the top of the tool holder is abnormally continuously oiled, and the system alarm oil pressure is too low. Check that the hydraulic system piping is not damaged and the FLC control system is normal. Further inspection of the hydraulic system control components, found that a two-position three-way solenoid valve coil in the tool holder lubricating oil circuit burned out, the valve core could not be returned, so that the tool holder lubrication oil supply was always in the normally open state. After replacing the solenoid valve, the fault is eliminated.
The phenomenon and cause of CNC lathe failure. From the fault statistics, the failure rate of the tool holder is the highest. The following are the electrical system: the z-axis (radial, axial) feed system, the power supply, the cooling system, and the hydraulic system. Although the CNC system has frequent failures, However, the fatality is very small. The faults of this system are mostly caused by human factors. After the fault occurs, it does not cause a big harm (the fault is mostly the CNC parameter error). If the quality of maintenance personnel and operators is improved, the CNC system will Has a high reliability. Although the economical CNC machine tool failure is more frequent than the full-function CNC machine tool, the maintenance difficulty is relatively small. Therefore, as long as we learn more and practice more, accumulate experience and master the maintenance skills, we will be able to repair the CNC equipment by our own strength. Use well and manage well.
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