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

1. Reasonable selection of cutting tools: The selection of CNC lathe cutting tools has a direct impact on the thread processing accuracy. The tool type should be determined according to the specific material and processing technology to ensure the tool life and processing accuracy. At the same time, the position of the CNC lathe tool tip should be correct, usually 0.1mm~0.3mm higher than the center of the workpiece, and the tool should be kept sharp to reduce the friction between the tool and the workpiece, reduce cutting force, and improve the surface finish of the part.

2. Optimize processing parameters: The selection of CNC lathe processing parameters, such as pitch, feed speed, etc., directly affects the efficiency and accuracy of processing. CNC lathes should be gradually adjusted according to the actual situation to achieve the best results.

3. Use two thread turning tools: In order to improve the thread processing accuracy of the CNC lathe, you can prepare two thread turning tools and use the two instructions G76 and G92 for programming. First use the G76 editing program to rough machine the threads, leaving a margin of 0.05mm~0.10mm, and then use the G92 editing program to finish the threads. This can not only improve processing efficiency, but also improve the finish of the thread.

4. Pay attention to workpiece clamping: CNC lathe workpieces must be clamped to prevent accidents from loosening during the turning process. Whether it is an ordinary lathe or a CNC lathe, the workpiece to be processed must be firmly clamped.

5. Reasonable selection of cutting fluid: The selection of cutting fluid for CNC lathes is also very important for improving thread machining accuracy. When the thread accuracy requirements are not very high, water-based cutting fluid can be used; when the accuracy requirements are high, it is best to use oil-based cutting fluid.

6. Processing debugging and optimization: Before actual processing of CNC lathes, simulation processing software can be used to simulate processing in order to optimize the processing program. At the same time, CNC lathes also need to adjust processing conditions, such as feed speed, cutting depth, etc., according to the actual situation during the processing process, to improve processing quality.

In summary, CNC lathes can effectively improve the thread processing of CNC lathes by rationally selecting tools, optimizing processing parameters, using two thread turning tools, paying attention to workpiece clamping, rationally selecting cutting fluids, and performing processing debugging and optimization. Accuracy. In practical applications, CNC lathes need to be selected and adjusted according to specific conditions to achieve the best processing results.