CNC lathe methods to improve thread processing accuracy mainly include the following aspects:

1. Select appropriate thread processing tools: CNC lathes select appropriate cutting materials and coatings according to the properties of the work material, as well as appropriate tool types and sizes to ensure the accuracy and quality of thread processing. At the same time, CNC lathes need to select appropriate tool feed rates and rotational speeds according to the needs of thread processing to ensure the rationality of cutting parameters.

2. Reasonable use of two thread turning tools: In order to improve the processing accuracy of threads, CNC lathes can prepare two thread turning tools. First use one tool for rough machining, leaving a certain margin, and then use the other tool for rough machining. finishing. This method does not affect the processing efficiency, but also improves the finish of the thread.

3. Reasonable use of the compensation function of the lathe: The accuracy of the servo system used by general CNC lathes will be affected by reverse deviation. At this time, the compensation function of the CNC lathe can be used when processing the workpiece, and the CNC lathe can adopt it. Corresponding compensation measures are taken to reduce the impact of this reverse deviation, so that its accuracy can be compensated and corrected in a timely manner to a certain extent.

4. Adjust cutting parameters: Adjustment of CNC lathe cutting parameters is a key step to improve thread processing accuracy. During the cutting process, it is necessary to pay attention to the control of feed speed and cutting depth to give full play to the cutting performance of the thread cutter. At the same time, the CNC lathe reasonably selects the tool feed angle and clearance angle to ensure smooth cutting in and out of the thread cutter and prevent tool chatter during the cutting process.

5. Take preventive measures beforehand: Eliminate error sources for CNC lathes, impose strict requirements on the production, processing and assembly accuracy of lathes, increase the rigidity of CNC lathes and the appropriateness of the production environment temperature to prevent thermal deformation.

To sum up, CNC lathes can effectively improve the thread processing accuracy of CNC lathes by selecting appropriate tools, rationally using two cutting tools, utilizing the lathe's compensation function, adjusting cutting parameters, and taking preventive measures beforehand. These methods need to be selected and adjusted according to specific conditions in the actual application of CNC lathes to achieve the best processing results.