To improve the work efficiency of CNC vertical lathe, the following methods can be adopted:

1. Optimizing process planning: Carry out reasonable process planning and analysis to determine the best tool path, cutting parameters and processing sequence. Optimize the machining process and improve machining efficiency by reducing unnecessary tool change times and reducing idle travel time.
2. Improve cutting parameters: According to the characteristics of different materials and workpieces, reasonably select cutting parameters such as cutting speed, feed speed and cutting depth. At the same time, it is optimized in combination with tool performance and workpiece characteristics to achieve higher cutting efficiency and processing quality.
3. Automated operation: use the automation functions of CNC vertical lathe, such as automatic tool change, automatic measurement, etc., to reduce operator intervention and waiting time, and improve work efficiency. Reasonably set up automatic procedures and workflows to achieve continuous processing and efficient production.
4. Optimize tool selection and management: choose the right tool, including cutting tools, fixtures and tool holders, etc. Ensure the quality and reasonable maintenance of the cutting tools, and replace worn cutting tools in time to avoid damage to the cutting tools and decrease in processing quality.
5. Reduce the idle time of the machine tool: In order to avoid the idle time of the machine tool being too long, a reasonable production plan can be formulated to reduce the waiting time of the workpiece to be processed. At the same time, reasonably arrange tool change and clamping process to minimize machine downtime.
6. Continuous monitoring and optimization: Through real-time monitoring of machine tool running status, cutting process and workpiece quality, problems can be found in time and room for improvement can be optimized. Use the data acquisition and analysis functions of CNC machine tools to continuously optimize and improve work efficiency and production quality.
7. Training operators: Provide operator training and skill improvement, so that they are familiar with the operation and programming of CNC vertical lathes, and can efficiently operate and manage machine tools. Operator skill and experience are critical to increasing productivity.

In summary, by optimizing process planning, setting cutting parameters reasonably, automating operations, optimizing tool management, reducing idle time, continuous monitoring and optimization, training operators, etc., the work efficiency of CNC vertical lathe can be effectively improved and more efficient processing and production.