When using a CNC vertical lathe, there are some precautions and details that require special attention, including the following:

1. Position and clamp the workpiece: Ensure that the workpiece is correctly and firmly clamped on the clamping device, and that the position and positioning of the workpiece are accurate. Check whether the fixture and positioning device are firm and installed and adjusted correctly according to the CNC vertical lathe processing requirements.
2. Tool selection and installation: Select the appropriate tool according to the CNC vertical lathe processing requirements, and install it correctly on the tool holder or tool holder. Make sure that the cutting edge of the tool is in good contact with the workpiece, and that the cutting direction and machining parameters are set correctly.
3. Rotation speed and feed rate: Set appropriate rotation speed and feed rate according to material, tool and processing requirements. Adjust according to the processing manual or experience to ensure the balance between CNC vertical lathe cutting efficiency and processing quality.
4. Cutting fluid and cooling system: Properly configure and use cutting fluid, and ensure that the cooling system is working properly. Cutting fluid can reduce cutting temperature and extend tool life, while the CNC vertical lathe cooling system can prevent overheating of the workpiece and machine tool.
5. CNC program and parameter setting: Accurately set the CNC program and related parameters according to the processing requirements, including the cutting speed, feed speed, cutting depth, etc. of the CNC vertical lathe. Confirm that the procedure is correct and perform a test cut to verify the accuracy of the parameters.
6. Safe operation: Strictly abide by the safe operating procedures of machine tools and wear corresponding protective equipment to ensure personnel safety. Avoid any adjustments or maintenance operations on the machine tool while the CNC vertical lathe is running to avoid accidental injury or machine tool failure.
7. Monitor the processing process: Keep monitoring the processing process, observe the shape of the chips, listen to the sound of the machine tool running, etc. If an abnormality is discovered on the CNC vertical lathe, it should be stopped immediately for inspection, and adjustments or repairs should be made as necessary.
8. Regular maintenance and upkeep: Perform regular maintenance and upkeep according to the requirements and recommendations of the CNC vertical lathe manufacturer, including cleaning, lubrication, fastener inspection, etc. Establish maintenance records and develop reasonable maintenance plans based on the records.

The above are some details that need to be paid attention to when using CNC vertical lathes to ensure safety, improve processing quality and extend the life of the machine tool. At the same time, for each specific machine tool and processing task, specific operating procedures and details need to be understood and followed according to the machine tool manufacturer's operating manual and relevant guidance.