Manhart How to quickly determine the cause of a sudden malfunction in a CNC circular machine?

The methods for quickly determining the cause of a sudden malfunction in a CNC circular machine mainly include the following aspects:
###1、 Utilize the device’s self diagnostic function
Modern CNC systems usually have strong self diagnostic functions, which can monitor the working status of hardware and software in real time. When an abnormality is detected, the system will display an alarm message or indicate the approximate cause of the fault on the screen. Operators should first review this information to understand the types and locations of faults prompted by the system, in order to narrow down the scope of fault diagnosis.
###2、 Observe the fault phenomenon
**1. Abnormal noise and vibration * *:
-Pay attention to whether the equipment makes abnormal sounds or vibrations, which may be a sign of mechanical component damage or looseness.
-Analyze the sources of abnormal noise and vibration, and determine whether they are related to components such as the spindle, transmission system, or cutting tools.
**2. Processing accuracy variation * *:
-Check whether the accuracy of the processed workpiece has decreased, such as size deviation, poor roundness, etc.
-The reasons for changes in accuracy may be related to tool wear, decreased machine positioning accuracy, or improper adjustment of CNC system parameters.
**3. Display screen error message * *:
-Carefully read the error messages on the CNC system display screen, which often directly point to the specific location or type of fault.
###3、 Conduct preliminary inspection
**1. Check the power supply and electrical components:
-Confirm if the power supply is working properly, check if the fuse is blown, and if the electrical components are overheating or burnt.
**2. Check the transmission system * *:
-Check whether the transmission belt, gears, bearings and other components are worn or damaged, and whether the transmission is smooth.
**3. Check the hydraulic system (if applicable) * *:
-Check the oil level and quality of the hydraulic oil, and confirm whether the hydraulic pipeline is leaking or blocked.
###4、 Reasoning based on experience
Operators and maintenance personnel should infer and analyze faults based on their own experience, combined with equipment usage and historical fault records. For example, if the equipment is used for a long time without maintenance, there is a higher possibility of mechanical component wear and tear; If the equipment frequently experiences accuracy issues during the machining process, it may be related to improper parameter settings in the CNC system or tool wear.
###5、 Use professional tools for testing
When necessary, professional tools such as multimeters and oscilloscopes can be used to test the electrical components and signal transmission of the equipment to further determine the cause of the malfunction.
###6、 Comprehensive judgment and exclusion
Through the above steps of inspection and reasoning, comprehensively determine the cause of the fault and take corresponding measures to eliminate it. If the fault is complex or difficult to diagnose, professional maintenance personnel should be contacted in a timely manner for handling.
###Precautions
-When troubleshooting, attention should be paid to safety and avoid touching live or rotating parts.
-During the troubleshooting process, one should remain calm and not blindly disassemble or replace components to avoid expanding the scope of the fault or damaging the equipment.
-After the investigation is completed, it is necessary to promptly summarize the experience and lessons learned, improve the maintenance system of the equipment, and enhance the reliability and stability of the equipment.