Daily Maintenance Of CNC Machining Center

In order to better maintain various CNC machining center equipment, formulate appropriate inspection and maintenance specifications for different characteristics of each model, accurately implement daily maintenance, ensure the accuracy and stability of the equipment and extend the service life of the equipment, ensure safe production, avoid the occurrence of industrial accidents, and achieve the purpose of safety and efficiency. This document is specially formulated;

Scope: The daily inspection and maintenance operations of the CNC machining center equipment used are all specifications;

Daily maintenance: refers to the maintenance that CNC machine tool operators must perform every shift, mainly pre-shift and post-shift inspections to keep the equipment clean and check the condition of machine tool parts, lubrication conditions, and whether the screws are loose, etc.;

CNC Machine Daily Maintenance

1 The indicator lights on the operation panel are working properly and there are no abnormal alarms

2 Confirm that the air pressure gauge is within the range of (0.4-0.6MPa) and there is no air leakage in the air compression system

3 Confirm that there is no abnormal noise in the motor and moving parts

4 Wipe the operation panel with a dry cloth to keep the panel clean

5 Clean the cutting fluid filter and keep it clean, and confirm that there is no water leakage in the cutting fluid pipeline

6 Check whether the cutting fluid level is normal, and adjust it if it is not normal

7 At the end of each shift, rinse the debris and other debris in the machine to keep the inside of the machine clean

8 Confirm that the spindle cooling fan is working properly

9 Check the safety door function. It is normal for the machine to stop running when the protective door is opened during machine operation

10 Check the air pressure detection function. It is normal for the air pressure to be too low to alarm when the air source is turned off

11 Check the emergency stop function. It is normal for the machine to stop running immediately when the emergency stop button is pressed during machine operation

12 Check whether the auxiliary equipment of the machine is intact and clean

CNC Weekly Maintenance

1 Wipe the surface of the machine with a dry cloth to keep the appearance clean

2 Clean the cutting fluid tank and pipes to remove foreign matter and keep the pipes unobstructed

3 Clean the spindle end face, spindle taper hole and tool magazine and wipe them clean with a cloth

4 Remove moisture from the water collector of the three-point combination

CNC Monthly Maintenance

1 Add grease to the XYZ three-axis and tool change mechanism

2 Clean the cooling fan filter of the electric cabinet

3 Check whether there is water or oil in the electric control box, and clean it if there is

4 Use the manual function to make the XYZ three-axis move the entire distance and check for abnormal noise

5 Clean the spindle cooling fan

6 Check whether the anchor screws are firm, and adjust the level of loose and unstable equipment

7 Clean the appearance of the oil recovery device and the filter element, check whether it is working properly, the motor has no vibration noise, and the oil return pipe is unobstructed;

Equipment Regular Maintenance

Monthly: Check the three-axis motor and moving parts for abnormal noise; Check the machine tool parameters for abnormalities; Check whether the air pressure is within the range of (0.4-0.6MPa) for air leakage; Check whether the shield and exposed pipelines are damaged; Check whether the lubricating oil system is working properly and whether there is oil leakage; Check whether the safety device is damaged (door lock, emergency stop switch, etc.);

Quarterly: Clean and maintain the debris in the XY axis sheet metal; Clean the cutting fluid tank and foreign objects in the pipeline to keep the pipeline unobstructed; Clean and maintain the spindle cooling fan; Check whether there is water or oil in the electric control box, and clean it if there is; Check whether the exhaust fan of the electric control box is working properly; Clean the appearance of the oil recovery device and the filter element, and check whether it is working properly; Semi-annual : Check whether water or oil has entered the transformer, and whether the exhaust fan is working properly; check whether the anchor screws are firm; clean the spindle end face and taper hole, and wipe them clean with a cloth; clean the tool magazine and check whether the tool holder is damaged; check whether the fans of each driver are operating normally; whether the water pump and oil recovery machine motor have vibration noise;

Annual: Check whether the tool magazine spring and each screw bearing are worn; check whether the machine tool backup battery has power; back up the machine tool certification documents and parameters; check whether the spindle tension is within the normal range; check whether the main power terminal and each terminal in the electric control box are loose; check whether the machine tool geometric accuracy is within the normal range; perform annual equipment accuracy inspection according to the "CNC machining center accuracy inspection table";