The key points of operation of CNC vertical lathe are as follows:

1. Processing preparation: According to the requirements of CNC vertical lathe processing tasks, select appropriate tools and fixtures, and perform correct tool clamping and workpiece clamping. Check the status of machine tools, hydraulics and cooling systems to make sure everything is ready.
2. CNC program loading: Load the correct CNC program and related parameters into the CNC system. Ensure the accuracy and completeness of the program, and make necessary adjustments and settings in accordance with CNC vertical lathe processing requirements.
3. Start the machine tool: Follow the machine tool manufacturer's instructions to correctly start the power supply and control system of the CNC vertical lathe. Wait for the machine tool to perform self-test and initialization, and ensure that the connection and interface of the CNC system are normal.
4. Manual operation: In the manual mode of the machine tool, manual operation is performed through the panel or handwheel to ensure that functions such as normal movement of each axis of the CNC vertical lathe, cutting position, and tool changes work normally.
5. Automatic operation: In the CNC vertical lathe automatic mode, load and verify the correct CNC program. Press the start button to let the machine tool automatically process according to the program. Closely observe the operating status and processing conditions of the CNC vertical lathe during the processing.
6. Monitor the processing process: During CNC vertical lathe processing, pay attention to the cutting process, the clamping state of the workpiece, the supply of cutting fluid and coolant, and the wear of the tool. If there is any abnormality, take timely measures.
7. Regular quality inspection: Regular quality inspection of processed workpieces, including size, surface quality and processing accuracy, etc. Use measuring tools to measure to ensure that the processing quality meets the requirements.
8. Shut down the machine tool: After the processing is completed, shut down the machine tool correctly according to the CNC vertical lathe operating procedures. Turn off the power supply and hydraulic system, and perform cleaning and maintenance work on the machine tool.
9. Safe operation: During CNC vertical lathe operation, always pay attention to safe operating procedures. Wear personal protective equipment and avoid contact of fingers or clothing with moving tools or rotating spindles. Comply with the safety operating procedures of CNC vertical lathes to ensure the safety of operators and equipment.

The above are the general points of CNC vertical lathe operation. Please note that specific operating procedures and requirements may vary depending on the machine model, control system and machining task. Therefore, before operating a CNC vertical lathe, it is recommended to be familiar with the machine tool's operation manual and relevant training to ensure the correctness and safety of the operation.