The key to controlling the quality of CNC lathe processing lies in systematic management and operation. The following are some methods and practices for controlling the quality of CNC lathes:

1. Good program design: Writing high-quality processing programs for CNC lathes is the key to ensuring processing quality. Program design should consider factors such as the workpiece's geometry, material properties, cutting parameters, etc. to ensure that the machining process is stable and efficient.

2. Precise tool selection: Select appropriate tools according to CNC lathe processing requirements, including tool type, tool material, tool size, etc. Ensure that the cutting tool has sufficient rigidity and wear resistance to ensure processing quality and efficiency.

3. Strict process control: Strictly control the CNC lathe processing technology, including the setting and adjustment of cutting speed, feed speed, cutting depth, coolant usage and other parameters. According to the different materials and shapes of the workpiece, the process parameters are adjusted in time to achieve the best processing effect.

4. Regular inspection and maintenance: Regular inspection and maintenance of CNC lathes, including inspection and maintenance of lubrication system, tool system, CNC system, etc. Ensure that all parts of the machine tool operate well to reduce the possibility of failure.

5. Quality control inspection: CNC lathes perform quality control inspections during processing, including workpiece size measurement, surface quality inspection, etc. Use measuring tools and testing equipment to inspect processed parts to promptly discover and correct processing problems.

6. Operator training and management: CNC lathes provide systematic training to operators to improve their operating skills and quality awareness. Establish a sound management system, clarify responsibilities and rights, and ensure that operators operate CNC lathes in accordance with specifications.

7. Continuous improvement and optimization: CNC lathes continuously collect and analyze data and experience during the processing process, summarize experiences and lessons in a timely manner, and optimize and improve the processing technology. Use advanced processing technology and equipment to improve processing quality and efficiency.

8. Supplier management: Establish good cooperative relationships with suppliers of cutting tools, coolants, etc. CNC lathes ensure stable and reliable quality of supplied cutting tools and materials, continuously optimize supply chain management, and reduce quality risks.

Through the effective implementation of the above measures, the quality stability and reliability of CNC lathe processing can be improved, ensuring that processed parts meet design requirements, meet customer needs, and enhance corporate competitiveness.