To ensure the processing accuracy of CNC lathes, the following measures can be taken:

1. Purchase and maintenance of machine tools: Choose CNC lathes with reliable quality, and perform regular machine tool maintenance to ensure the accuracy and stability of each component of the machine tool.

2. Workpiece clamping: CNC lathes use appropriate clamping methods and fixtures to ensure that the workpiece is stably fixed during processing and avoid errors caused by weak clamping.

3. Tool selection and grinding: Select appropriate tools for CNC lathes, and check and grind the tools regularly to ensure that the cutting edges of the tools are sharp, reduce the processing force and cutting heat of the CNC lathe, and improve processing accuracy.

4. Processing parameter settings: CNC lathes should reasonably set processing parameters, including cutting speed, feed speed, cutting depth, etc., to ensure stability and accuracy during CNC lathe processing.

5. Process route optimization: Optimize the CNC lathe processing process route, reasonably arrange the sequence and processing sequence of each process, reduce the deformation of the CNC lathe workpiece and processing residual stress, and improve the processing accuracy.

6. CNC system debugging: Accurately debug and calibrate the CNC lathe CNC system to ensure the stable operation of the CNC system and reduce errors and deviations.

7. Quality inspection and adjustment: Regular quality inspection and measurement are carried out during the CNC lathe processing process, and problems are promptly adjusted to ensure that the CNC lathe processing accuracy meets the requirements.

8. Technical training for operators: Provide professional technical training to CNC lathe operators to improve their processing skills and operating level, reduce operating errors, and ensure processing accuracy.

Through the comprehensive application of the above measures, CNC lathes can effectively ensure the processing accuracy of CNC lathes and meet the accuracy standards of different processing requirements.