special type milling machine often has hydraulic, mechanical and electrical failures in the process of use, and the failure of the electrical system is the most frequent of these three failures. How to solve the fault of the electrical system has become an urgent problem to be solved.

Fault analysis of electrical system of inclined bed machine tool:

First, visual observation method

The visual observation method is to use the senses for fault inspection. That is, ask the on-site personnel about the process, phenomenon, and consequences of the fault. Check whether each part is in normal state, and whether the corresponding electronic control device has an alarm signal. After these rules are eliminated, check whether the resistance wire is burned, whether the components are burnt, and whether the wire and cable are dropped.

Second, instrument inspection method

Instrument inspection method is to use the corresponding electrical instrument to check the AC and DC voltage and the corresponding pulse signal in the line to find out the possible fault point.

Third, alarm indication and signal analysis

This method is to make full use of the alarm light and signal on the monitoring system to troubleshoot the fault. For the hardware system, the specific location of the fault is determined according to the alarm indicator light on each electronic component and electrical device. The software system has no specific alarm instructions, but the possible fault points can be found according to the alarm instructions in the hardware system and the combined use of signals.

Fourth, interface status check method

Today's CNC machine tools will include PLC. They are mainly connected by interface signals. Many of the symptoms of the special type milling machine are related to interface signal errors. In order to check whether the interface signal exists correctly, as long as the PLC program can be called out.

5. Parameter adjustment method

CNC machine tools, PLC, servo system contain a lot of parameters to adapt to the processing needs of different machine tools, but because the time used is too long, these parameters often can not meet the needs of the machine tool or their matching degree is reduced. Therefore, in order to continue to meet the production needs of the machine tool, these parameters are sometimes changed accordingly.

Six, spare parts replacement method

When a fault is identified on a circuit board, but it is difficult to find the faulty component, in order not to delay the production of the special type milling machine, the spare parts can be replaced first, and then the specific fault is checked and then repaired.

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