When cleaning CNC vertical lathes (also known as CNC lathes), there are several important issues to pay attention to:

1. Safe operation: Before cleaning the CNC vertical lathe, make sure that the machine tool is turned off and disconnected from the power supply. Follow relevant safety operating procedures, wear appropriate protective gloves and eyes, and take necessary measures to prevent accidents.
2. Remove cutting oil residue and debris: cutting oil residue and debris will be generated during the machining of CNC vertical lathe, and they need to be completely removed during cleaning. Tools such as small brushes, air guns, or vacuum cleaners can be used to remove oil residue and debris from all parts of the machine tool, including the bed, spindle, feed system, guide rails, etc.
3. Cleaning and lubrication system: The lubrication system of CNC vertical lathe plays an important role in ensuring the normal operation and life of machine tool components. Regularly check the oil cleanliness of the lubrication system and replace the oil as needed. When cleaning the lubrication system, it is necessary to pay attention to prevent contamination and impurities, use a suitable cleaning agent for cleaning, and ensure that the cleaning is complete, and fill the lubricating oil according to the machine tool manufacturer's recommendations.
4. Clean guide rails and ball screws: guide rails and ball screws are key components of CNC vertical lathes, and their cleaning and lubrication are crucial to the accuracy and stability of machine tools. Regularly clean the guide rails and ball screws from dust and dirt and lubricate them with an appropriate lubricant.
5. Check the electrical connection: During the cleaning process, the electrical connection of the CNC vertical lathe can be checked and cleaned. Make sure that the cable connection is firm and reliable, there are no loose or poor contact problems, and remove dust and corrosion on the electrical components.
6. Regular maintenance: The maintenance of CNC vertical lathe is very important, you can follow the maintenance manual provided by the manufacturer for regular lubrication, cleaning and inspection. Regular maintenance helps to prolong the service life of the CNC vertical lathe and reduce the number of failures and repairs.

It should be noted that when cleaning and maintaining the CNC vertical lathe, the operation manual and safety regulations provided by the machine tool manufacturer should be strictly followed to ensure correct and safe operation. If necessary, you can also consult the opinions and suggestions of professional CNC machine tool repair and maintenance personnel.