Precision parts machining is mainly high-precision parts for the processing object, the use of systematic, integrated theory and technology, according to the structure and requirements of the workpiece to achieve feeding, processing, testing, etc., then in the machining of parts, lathe failure how Diagnosis? Lathe maintenance personnel to master the first external internal principle, that is, when the mechanical failure, maintenance personnel should be used to look, smell, listen, ask and other methods, one by one from outside to check:
First, the static after the move: Maintenance personnel to be static before moving, not blindly hands-on, should first ask the process of mechanical parts processing operations and status of the fault occurred, check the manual, data before you can find the cause of the malfunction, and then troubleshooting ,

Second, the first simple and complex: a variety of machine faults appear to be intertwined with each other, sometimes unable to start, should be easy to solve the problem, solve the larger problem. Often in the process of solving simple problems, the difficulty of the problem may become easier to sort out ideas, the more difficult to become easier.

Third, the first electrical machinery after the mechanical: Lathe machining is a high degree of automation, technical complexity of the advanced mechanical processing equipment. Mechanical failure easier to find, and the system fault diagnosis is more difficult.

Fourth, the first public after the special: public issues will affect the overall situation, and special problems only affect the local.

Fifth, the first general after the special: in the exclusion of a failure, we must first consider the most common possible causes, and then analyze the rare occurrence of special reasons.