CNC machine tool fault diagnosis and maintenance comprehensive analysis steps - Database & Sql Blog Articles

Single chip microcomputer STM32L151CCU6

SMD aluminum electrolytic capacitor

Photocoupler

The fault of the CNC machine tool is partly through the self-diagnosis function of the machine tool. The alarm shows the type of fault and prompts the possible cause of the fault. It provides the maintenance personnel with some clues to analyze and judge the real fault location and cause. Here, except for a few faults, which can be diagnosed by the self-diagnosis display function, most of the faults are caused by comprehensive faults, that is, a fault phenomenon may be caused by various reasons, mechanical and electrical. Or control system; or a defect may cause multiple faults, that is, the causal relationship of the fault is not a simple one-to-one correspondence. Therefore, the real cause of the failure cannot be quickly determined, and it is necessary to conduct a thorough investigation, testing, etc., and finally, a comprehensive analysis can confirm the diagnosis.

1. Fully investigate the fault on the faulty machine. After the machine tool fails, the maintenance personnel should investigate the operator at the fault site, under what circumstances the fault occurred, and what measures have been taken.

2, listed the possible causes of failure 3, the diagnosis of the cause of the failure according to the phenomenon of failure, combined with the site investigation, make full use of the technical file of the machine tool, refer to the many factors listed in the machine maintenance manual, if necessary, use the instrument to carry out some tests, Develop a process for analyzing and diagnosing, starting from the most likely factors, eliminating the false phenomenon one by one, and finally finding out the real cause of the failure.