Four Cases of Unalarmed Breakdowns in CNC Machine Tools
A CNC machine tool, also known as a computer numerical control machine tool, is a machine tool with a programmable control system integrated into the machine. With this system and the corresponding software, the operator can program the CNC machine and let it complete various machining operations independently, without additional intervention and control.
CNC machine tools are widely used in the metal processing industry. Due to the complexity of the CNC control system, it is necessary to carry out maintenance and corresponding fault diagnosis and exclusion operations to maintain the normal and safe operation of the machine. This article focuses on four cases of unalarmed breakdowns of automatic CNC machine tools, the causes and elimination methods of these failures, and the preventive measures that can be taken to reduce the frequency of similar failures in the future.
Case 1: CNC Tool Stops Working During Machining
This is a common fault of CNC machine tools. In this case, the CNC machine tool stops working during machining. Possible causes of this fault may include improper spindle speed settings, inaccurate machine settings, insufficient lubrication of spindle or guide rails, etc. To eliminate this fault, first check the settings of the CNC machine and ensure that they are correct, then check the lubrication system of the guide rail and spindle and add lubricant if necessary, finally make sure the spindle speed is set correctly, and check if the cutting tool is damaged.
Case 2: CNC Tool Making Unexpected Movements
This fault is also common in CNC machine tools. When this fault occurs, the CNC machine tool will make unexpected movements which may cause it to stop working. The main causes of this fault include incorrect programming, incorrect motor control settings, worn guide rails or other mechanical problems, etc. To eliminate this fault, first check the programming of the CNC machine and make sure it is correct, then check the settings of the motor control, and finally make sure the guide rail is in good condition and not worn. If needed, it should be replaced.
Case 3: Poor Quality of Machined Component
This fault occurs when the quality of the machined component does not meet the required standards. Possible causes of this fault include incorrect CNC machine settings, incorrect programming, improper cutting tool selection, etc. To eliminate this fault, first check the settings of the CNC machine and confirm they are correct, then check the programming of the machine and make sure it is correct, and finally check the cutting tool and make sure it is suitable for the material of the machined component.
Case 4: Low Machining Efficiency
This fault occurs when the CNC machine has a low machining efficiency. Possible causes of this fault include insufficient lubrication of guide rail, incorrect motor control settings, incorrect machining parameters, etc. To eliminate this fault, first check the lubrication system of the guide rail and add lubricant if necessary, then check the settings of the motor control and make sure they are correct, and finally check the machining parameters and make sure they are suitable for the job.
Conclusion
The above discussion has introduced four common cases of unalarmed breakdowns in CNC machine tools, the causes and elimination methods of these faults, as well as preventive measures that can be taken to reduce the frequency of similar faults in the future. In order to ensure the reliable operation of the CNC machine, it is necessary to regularly check the machine and carry out maintenance and repair operations to ensure that no faults develop.
