Types and analysis of external faults of CNC cutting machines

The external faults of the CNC cutting machine are divided into soft faults and hard faults. Soft faults are caused by improper operation and debugging, and usually occur in the early use of the CNC cutting machine or the adjustment cycle of the equipment user. For the CNC cutting machine, another place that is prone to failure is the servo device. The movement of each axis is realized by a servo unit that controls a servo motor to drive the gear. Speed u200bu200bfeedback and rotary encoder, position feedback and motor positioning. In general, the drive modules of rotary encoders and servo units are prone to failures. There are also some power outages. Especially for systems that use computer hard drives to save data.

There are some faults that do not generate fault alarm information, but the operation cannot be completed. On this basis, analysis and judgment are made based on maintenance experience, the working principle of the CNC cutting machine and the operating status of the programmable controller.

For the maintenance of the CNC cutting machine, the key to finding the problem is the key. Especially the external failure of the CNC cutting machine. Sometimes the diagnosis process is more complicated, but once a problem is discovered, it is easier to solve. External fault diagnosis should follow the following two principles. First of all, master the working principle and action sequence of the CNC cutting machine. Secondly, use PLC ladder diagram for diagnosis. The status display function of the CNC system or external programmer can monitor the running status of the PLC. Under normal circumstances, as long as you follow the above principles and be cautious, you can eliminate and eliminate the failure of ordinary CNC cutting machines in time.

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