There are some precautions that need to be followed when starting up the CNC vertical lathe and processing workpieces. Here are some suggestions:
Notes on startup and debugging:

1. Check machine tools and tools: Before starting the machine, make sure the machine tools and tools are in good condition. Check whether the lubrication system, cooling system, etc. of the machine tool are operating normally, and check the wear of the tool.
2. Familiar with the operation manual: carefully read the operation manual of the CNC vertical lathe, and be familiar with the control panel, buttons and functions of the machine tool. Make sure you understand the basics of setting up the workpiece coordinate system, selecting tools and speeds, etc.
3. Safe operation: Before turning on the machine, make sure there are no sundries and obstacles around. Wear personal protective equipment such as safety glasses and gloves. Follow the correct operating procedures and safety regulations to ensure the safety of personnel and equipment.
4. Step-by-step debugging: When starting up for the first time, it is best to use a small cutting amount and a slower speed for trial operation and debugging. Observe the operation of the machine tool to ensure that the movement of each axis is smooth and unimpeded.

Precautions when processing workpieces:

1. Reasonably plan the processing sequence: When performing CNC vertical lathe processing, reasonably plan the process and processing sequence to avoid damage to the workpiece caused by cutting impact and posture changes.
2. Select the appropriate tool and parameters: Select the appropriate tool, cutting speed and feed speed according to the workpiece characteristics and requirements. Set reasonable cutting parameters according to the hardness of the material and processing requirements.
3. Regular inspection and measurement: In the process of processing, regularly check the workpiece size and surface quality. Use measuring tools, such as calipers, vernier calipers, etc., to ensure that the processing results meet the requirements.
4. Coolant and lubrication: During the machining process, timely use coolant and lubricant to reduce cutting temperature and reduce friction. This helps improve machining quality and tool life.
5. Safety measures: During processing, stay alert and follow safety regulations. Keep fingers and other objects away from cutting tools and rotating parts to ensure safe operation.

The above are some precautions when starting up, debugging and processing workpieces for CNC vertical lathes. However, please note that before specific operations, it is still recommended to refer to the operating manual of the specific machine tool and equipment for more accurate and detailed guidance.