General methods of troubleshooting for CNC machine tools From SGSK Equipment

This is the first stage of troubleshooting. It is a very critical stage. The following tasks should be done:

1, Inquiry and investigation 　 When receiving the information that the machine tool is on-site for troubleshooting, the operator should first be required to maintain the on-site fault status as much as possible without any treatment, which will help to quickly and accurately analyze the cause of the fault. At the same time, carefully inquire about the fault indication, the fault appearance and the background of the fault, and make a preliminary judgment based on this, so as to determine the tools, meters, drawings, spare parts, etc. that should be carried on site for troubleshooting, and reduce the round-trip time. 

2, On-site inspection After arriving at the scene, first verify the accuracy and completeness of the various conditions provided by the operator, so as to verify the accuracy of the preliminary judgment. Due to the level of the operator, there are many cases of unclear or completely inaccurate descriptions of the fault condition. Therefore, do not rush to deal with the fault after you arrive at the scene. Re-investigate various situations carefully to avoid damage to the scene and increase the difficulty of troubleshooting. To 　　

3, Fault analysis　 According to the known fault conditions, analyze the fault type according to the fault classification method described in the previous section to determine the troubleshooting principle. Since most of the faults are indicated, in general, according to the CNC system diagnostic manual and instruction manual of the machine tool, a variety of possible causes can be listed. To 　　

4, Determine the cause　 Investigate a variety of possible causes to find out the true cause of this failure. At this time, it is a comprehensive test of the familiarity, knowledge level, practical experience, and analytical judgment of the machine tool for the maintenance personnel. To 　　

5, Preparation for trouble shooting　 Some troubleshooting methods may be very simple, and some faults are often more complicated, requiring a series of preparations, such as the preparation of tools and meters, partial disassembly, repair of parts and components, purchase of components and even troubleshooting planning steps Formulation and so on.