The key to preventing the CNC milling machine from breaking the tool is correct operation and maintenance. Here are some suggestions to prevent the CNC milling machine from breaking the tool:

1. Make sure the machine table is flat: The work surface of the CNC milling machine needs to be kept flat to provide stable support for the workpiece and tool during the processing.

2. Firmly fix the plate: Before carving or processing, the CNC milling machine must ensure that the plate is firmly fixed on the machine, especially when using vacuum adsorption, to ensure that the plate is firmly adsorbed. If there is no vacuum adsorption, it is more important to fix the plate horizontally and stably.

3. Correct tool installation: The tool of the CNC milling machine needs to be installed correctly to ensure that the tool is perpendicular to the spindle. Improper installation of the tool will lead to uneven cutting force and increase the risk of tool breakage.

4. Check the stability of the spindle: Before the CNC milling machine is operated, check whether the spindle is firm and there is no looseness. The looseness of the spindle will cause vibration during the cutting process, which will increase the risk of tool breakage.

5. Control the carving speed: The carving speed of the CNC milling machine is one of the important factors affecting tool breakage. Too slow speed will cause the tool temperature to rise and increase the risk of tool breakage; too fast speed will increase resistance and also easily cause tool breakage. Therefore, during the processing, it is necessary to reasonably control the carving speed according to factors such as the thickness and material of the plate.

6. Regular maintenance and inspection: Regularly maintain and inspect the CNC milling machine, such as replacing worn tools, cleaning the inside of the machine tool, checking the lubrication of the transmission parts, etc., to ensure that the machine tool is in good working condition.

7. Training and operating specifications: Provide professional training and guidance to CNC milling machine operators to ensure that they understand the operating procedures and safety precautions of CNC milling machines. At the same time, formulate and comply with corresponding operating specifications to avoid problems such as tool breakage caused by improper operation.

Following the above suggestions can effectively reduce the risk of tool breakage on CNC milling machines and improve processing efficiency and workpiece quality.