CNC vertical turning machining may encounter some common problems in practice, which may involve machine tools, workpieces, cutting tools, processing processes, etc. Here are some possible common questions:

1. Tool wear or damage: Tools may be damaged due to wear, collision or other reasons during CNC vertical lathe processing, resulting in a decline in CNC vertical lathe processing quality or processing stop.

2. Processing size deviation: CNC vertical lathe processing size deviation may be caused by factors such as tool wear, machine tool thermal deformation, tool sharpening error, etc., and needs to be adjusted and calibrated in a timely manner.

3. Poor surface quality: If the CNC vertical lathe cutting parameters are inappropriate, or the tool wear is severe, it may lead to poor surface quality of the workpiece and problems such as scratches and burrs.

4. Vibration problem: Insufficient rigidity of the CNC vertical lathe, too long workpiece, or improper selection of cutting parameters may cause vibration during the processing, affecting the processing quality and accuracy of the CNC vertical lathe.

5. Program errors: Errors in CNC vertical lathe programming may lead to processing deviations or processing interruptions, including trajectory planning errors, tool path errors, etc.

6. Clamping problem: If the clamp of the CNC vertical lathe clamping the workpiece is not firm or the clamp design is unreasonable, it may cause the CNC vertical lathe workpiece to shift or deform during the processing, affecting the processing quality.

7. Coolant problem: Insufficient supply of CNC vertical lathe coolant or poor coolant quality may lead to excessively high cutting temperatures, affecting CNC vertical lathe tool life and processing quality.

8. Improper machine tool parameter settings: If the CNC vertical lathe parameter settings are unreasonable, such as improper selection of feed speed, cutting speed, rotation speed and other parameters, it may affect the CNC vertical lathe processing efficiency and processing quality.

Solving these problems usually requires CNC vertical lathe operators to have extensive experience and skills. At the same time, they need to rely on appropriate equipment, tools and technical means for adjustment and optimization. Regular equipment maintenance and upkeep are also important measures to prevent problems from occurring.