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Numerical control lathe common fault case no alarm processing method

by:SNK     2020-08-26
Numerical control lathe common fault case no alarm processing methods to analyze release date: 2018 - 10 - 08 clicks: 3410 CNC lathe control system intelligent degree is very high, generally has a fault self-diagnosis function. In general, a failure occurs there is alarm message, according to the description of troubleshooting method checks, most of the failure to find a solution. Of course, there are some faults in the numerical control lathe in use, no alarm, the phenomenon is not obvious. In this case, the handle can be as simple as the well-documented. To this kind of fault handling, when maintenance personnel lack of work experience, processing will make wrong judgment, often cause unnecessary economic loss or extended maintenance time. To the cause of such failure was found, first must be from the crisscrossed each kind of surface phenomenon, find out its true phenomenon, in confirm the failure phenomenon, find out the cause of the happen. Below summarizes some common CNC lathe without fault alarm processing analysis method: a failure case, in the numerical control lathe in use, a manual movement is normal, movement of automatic back to zero after a distance still, move to restart manually and normal use economic CNC CNC lathe, stepper motor, manual mobile, due to the slower moving normal automatic back to zero, fast moving distance is longer, a mechanical jam phenomenon. According to the fault analysis, mainly mechanical reasons. This kind of failure, often without notice in the repair, so we should pay attention to in the work, to avoid the occurrence of this phenomenon. Failure case 2, the boot after CNC lathe screen no display ruled out for this kind of failure, the first is to make the normal work of the screen. Sometimes just shows part of the reason. But in many times, may exist various faults. A FANUC SERIESO - TD system power switch on the operation panel has pressed, red and green light is bright, check the electrical cabinet switch and the main part without exception, all control circuit without problem, restart after shutdown, fault. After check, due to poor working conditions, machine tool field ground loosening, lead to static electricity and the failure. After connecting the ground wire to the MODE1 launch system in normal way. Failure case three, in the numerical control equipment, no alarm at most no such as CNC lathe is a machine tool error or size in diameter direction occurs when small phenomenon more. Of the cause of the malfunction, is generally screw and motor coupling structure of the frequency and the possibility of failure is different, after the failure phenomenon is also different, some size will only increase in negative directions, but the possibility of some of the positive and negative direction changes occur, according to the experience, the coupling between the elastic coupling, is basically a negative increase, and use the linkage between two fault happens. Failure case 4, numerical control lathe in the process of thread cutting, new thread disorderly buckle thought is the system software has a problem. Delete after the original software, reinstall the system, the system fault has not been eliminated. After analysis may be a mechanical failure, open the lid after the inspection found that the mechanical connection between the spindle and the spindle encoder is loose, after realigns fixed, fault elimination.
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