In CNC lathes, rigidity refers to the stability and stiffness of the machine tool structure. It directly affects the degree of deformation and processing accuracy of the machine tool under stress during turning. The higher the rigidity, the smaller the deformation of the machine tool during processing, and the higher the processing accuracy.

Specifically, the rigidity of CNC lathes includes the following aspects:

1. Machine tool structural rigidity: The main structure of the machine tool must be rigid enough to resist various forces and vibrations generated during processing to maintain a stable processing state.

2. Spindle rigidity: The spindle is one of the core components of CNC lathes, and its rigidity directly affects the processing quality and processing efficiency. The high rigidity of the spindle can ensure the stability of the tool and workpiece during the cutting process, reduce vibration, and improve machining accuracy.

3. Rigidity of guide rails and sliders: Guide rails and sliders are key components of the moving parts of CNC lathes, and their rigidity affects the stability and accuracy of the machine tool in each axis. Highly rigid guide rails and sliders can reduce deformation and swing during movement and improve positioning accuracy and repeatable positioning accuracy.

4. Tool holder rigidity: The tool holder is the component where the tool is installed, and its rigidity directly affects the stability and cutting quality of the tool. The high-rigidity tool holder can effectively resist cutting forces and vibrations, maintain the stability of the tool, and ensure machining accuracy.

To sum up, the rigidity of CNC lathes is an important factor in ensuring processing accuracy and stability, and plays a vital role in improving processing quality and reducing processing costs. When choosing a CNC lathe, you need to fully consider the rigidity level of the machine tool to ensure that it can meet actual processing needs.