Do you know the common faults of lathe processing

2023-12-13 10:00:51

(1) Power

The power supply is the energy source for the normal operation of the maintenance system and even the whole machine tool. If it fails or fails lightly, it will lose data and cause downtime. Heavy ones can destroy parts or even all of the system. Western countries due to sufficient power, high quality power grid, so the power supply design of its electrical system to consider less, which for our country has a larger fluctuations and high harmonics of the power supply network is slightly insufficient, coupled with some human factors, inevitably caused by the power failure.

(2) CNC system position ring failure

(3) the machine coordinates can not find the zero point. It may be that the zero direction is away from the zero point; the encoder is damaged or the wiring is open; the grating zero point mark is shifted; the return to zero deceleration switch fails.

(4) The dynamic characteristics of the machine tool become worse, the processing quality of the workpiece decreases, and even the machine tool vibrates at a certain speed. A large 1 of these may be caused by excessive clearance or even severe wear of the mechanical transmission system or insufficient lubrication or even wear of the guide rail. For the electrical control system, it may be that the speed ring, position ring and related parameters are no longer in the best matching state, and should be optimized again after the mechanical failure is basically eliminated.

(5) Occasional shutdown failure. There are two possible cases: the 1 case is that the problems in the design of the relevant software as mentioned above cause the shutdown failure under certain combination of operation and function operation, and the machine tool will disappear after power failure. The other 1 is caused by environmental conditions, such as strong interference (power grid or peripheral equipment), excessive temperature, excessive humidity, etc. This environmental factor is often overlooked by people, such as the southern region will be placed in the ordinary plant or even near the open door near the electric cabinet open for a long time to run, near a large number of dust, metal chips or water mist equipment and so on. These factors will not only cause failure, serious damage to the system and machine tools, be sure to pay attention to improve.

Summary and Improvement Work after Fault Maintenance and Troubleshooting

The summary and improvement work after the maintenance and analysis of the electrical fault of the CNC lathe processing is the third stage of the troubleshooting, and it is also a very important stage, which should be paid enough attention.