Cleaning the double-column CNC vertical lathe is an important step to ensure its normal operation and maintenance. Here are some common methods of cleaning double-column CNC vertical lathes:

1. First, disconnect the power and make sure the machine tool is in a stopped state. Make sure the safety switch is in the off position to avoid any accidents.
2. Use a soft cloth or brush to gently clean the surface of the machine to remove dust and dirt from the surface. Compressed air blowing can be used to clean hard-to-reach places such as feed rails, slide rails, etc.
3. Clean the guide rail: The guide rail is one of the important parts of the machine tool, and special attention should be paid to cleaning it. Use a dedicated rail cleaner or recommended cleaning solvent, apply it to a soft cloth, and then gently wipe the surface of the rail. Make sure to remove any oil, grease, and debris such as metal shavings.
4. Clean the cutting area: use a brush or an air gun to remove chips and waste from the processing area to ensure that the processing area remains clean.
5. Replacement of lubricating oil: Check whether the lubricating oil in the lubricating system meets the standard for replacement or replenishment. Follow the machine tool manufacturer's recommendations for oil changes and be sure to use the correct type and specification of oil.
6. Check the cooling system: Check the cleanliness and level of the coolant in the cooling system. If necessary, change the coolant and clean the cooling system to ensure good cooling.
7. Internal cleaning: If internal cleaning is recommended or required in the operation manual, it can be operated according to the instructions provided by the machine tool manufacturer. This may involve cleaning slide rails, gear drives, spindle areas, etc.

Please note that when cleaning the double column CNC vertical lathe, pay attention to safety and strictly follow the machine tool manufacturer's instructions and operation manual. If necessary, it is recommended to seek professional technical support or consult the machine tool supplier for more detailed cleaning instructions.