For CNC vertical lathes, here are some common places that require regular cleaning:

1. The outer surface of the machine tool: Regularly clean the outer surface of the machine tool, including the bed, table, guardrail, etc. Can be wiped with a clean cloth or brush to remove dust and oil stains. Avoid using solvent-based cleaners as they may damage the surface finish of the machine tool.
2. Cutting area: Regularly clean the cutting area, including the spindle, feed shaft and guide rail, etc. Remove chips and oil stains generated during the cutting process to ensure the normal operation and cutting quality of the machine tool. Can be cleaned with a blow gun or brush.
3. Cooling system: Clean the cooling system regularly to ensure it works properly. Remove impurities and deposits in the coolant, change the coolant regularly, and check whether the pipes and filters are unblocked.
4. Lubrication system: Regularly check the condition of lubricating oil in the lubrication system, and replace it according to the machine tool manufacturer's suggestion. Clean and lubricate the rails to keep them in good motion.
5. Control panel: Carefully clean the control panel of the CNC vertical lathe to prevent dust and dirt from entering the interior of the machine tool.
6. Tool magazine and knives: Regularly clean the tool magazine and tools to remove chips and oil stains generated during the cutting process. Check and replace worn or damaged knives.

Please note that when cleaning the machine tool, you should always follow safe operating procedures and avoid using too much water or detergent to avoid adverse reactions with electrical or lubrication systems. Also, be sure to follow the cleaning and maintenance instructions provided by the machine tool builder.