High precision CNC vertical lathe is a branch series of CNC machine tools that applies digital computing skills to the operation of machine tools. It can complete four functions: turning, milling, drilling, and grinding, and can be used without excessive disassembly and assembly.

In order to extend the service life of high-precision CNC vertical lathes and confirm the normal operation of machine tool performance, it is necessary to carry out daily maintenance work on the machine tool, confirm and inspect it on schedule. Below are the methods for machine tool maintenance:

1. Daily inspection: The main items include hydraulic system, spindle lubrication system, guide rail lubrication system, cooling system, and pneumatic system. Daily inspection is based on the normal condition of the system. For example, during the process inspection of the spindle lubrication system, if the power light is on, the oil pressure pump should be running normally. If the power light is not on, the spindle should be kept in a resting state, and communication with the mechanic should be carried out for maintenance.

2. Weekly inspection: Its main items include machine tool parts and spindle lubrication system, which should be accurately inspected every week, especially for removing iron filings and cleaning external debris from machine tool parts.

3. Monthly inspection: mainly to check the power supply and air dryer. The rated voltage of the power supply is 180v~220V and the frequency is 50Hz under normal conditions. If there is any abnormality, it should be measured and adjusted. The air dryer should be disassembled once a month and then cleaned and assembled.

The gearbox and valve shaft seal of high-precision CNC vertical lathe cannot be connected as a leak free whole, otherwise reliable anti leakage measures should be taken. There are no impurities inside the box, and the gear meshing area should be protected with lubricating grease. The opening and closing direction of the actuator valve of the CNC vertical lathe should be closed clockwise.

Because valves in the pipeline network are often manually opened and closed, the opening and closing speed of CNC vertical lathes should not be too high, even large diameter valves should be within 200-600 revolutions. For the convenience of one person's opening and closing operation, the opening and closing torque should be 240N-m under pipeline pressure conditions. The valve opening and closing control end should be square tenon, with standardized dimensions and facing the ground, so that people can directly operate it from the ground. Valves with discs are not suitable for underground pipelines.