The speed of CNC vertical lathe will have an important impact on the processing process. The following are several main effects of CNC vertical lathe speed on processing:

1. Cutting temperature: When the CNC vertical lathe speed exceeds the limit speed of the machine tool spindle, the cutting temperature may increase significantly. The excessively high cutting temperature of CNC vertical lathe not only affects the life of the tool and the processing quality of the workpiece, but may also cause thermal deformation of the workpiece, further affecting the processing accuracy.

2. Centrifugal force of the workpiece: As the speed of the CNC vertical lathe increases, the centrifugal force generated by the workpiece will also increase. The high centrifugal force of CNC vertical lathes may cause the workpiece to vibrate or fly out during processing, which not only affects the processing accuracy, but may also cause safety hazards to operators and machine tools.

3. Processing accuracy and surface quality: The choice of CNC vertical lathe spindle speed has a direct impact on the processing accuracy and surface quality of the workpiece. Within a reasonable speed range, CNC vertical lathes can improve the cutting efficiency of the tool and reduce the cutting force, thereby obtaining better machining accuracy and surface quality. However, the excessively high rotational speed of CNC vertical lathe may lead to increased tool wear, thereby affecting the processing quality.

4. Machine tool vibration: The excessively high speed of the CNC vertical lathe may also cause vibration of the machine tool. The vibration of CNC vertical lathe not only affects the machining accuracy, but may also cause damage to the structure and components of CNC vertical lathe.

5. Tool life: The choice of CNC vertical lathe speed has an important impact on tool life. Excessively high rotation speed of CNC vertical lathe may cause the tool to bear excessive cutting force and thermal load, thus shortening the service life of the tool.

Therefore, when selecting the speed of a CNC vertical lathe, factors such as cutting temperature, workpiece centrifugal force, machining accuracy, surface quality, machine tool vibration, and tool life need to be comprehensively considered. Usually, during the actual processing of CNC vertical lathes, experiments and experience are needed to determine the optimal speed range to obtain the best processing results.