How to maintain CNC Router？

The maintenance of CNC routers is crucial to ensuring their long-term stable operation and maintaining high-precision machining. Here is a detailed CNC Router maintenance guide:

1、 Daily maintenance

Cleaning work:

After completing daily work, thoroughly clean the machine tool, including the control panel, spindle taper hole, tool holder, tool head and taper handle, tool magazine arm and magazine, as well as dust and iron filings inside and outside the machine tool.

Wipe the taper hole inside the spindle with a clean cotton cloth and spray it with light oil for maintenance.

Lubrication inspection:

Check the level of lubricating oil to ensure that the machine tool is fully lubricated.

Check the lubrication condition of the axle track, and ensure that the track surface is well lubricated.

Coolant inspection:

Monitor the coolant level in the coolant tank and add it promptly if it is insufficient.

Air pressure check:

Check if the air pressure is normal.

Signal light inspection:

Check if all signal lights and abnormal warning lights are working properly.

Oil pressure unit inspection:

Check if there is any leakage in the oil pressure unit pipe.

Machine preheating:

After starting up, preheat for about 10 minutes before starting processing. For machines that are not used for a long time, the preheating time should be extended.

2、 Regular maintenance

Weekly maintenance:

Clean the air filter of the heat exchanger, as well as the filter of the cooling pump and lubricating oil pump.

Check if the tool bolt is loose and if the handle is clean.

Check whether the movement of the tool changing arm or the rotation of the tool disc in the tool magazine is smooth.

Clean the impurities and moisture in the compressed gas, check the oil level in the oil mist separator, and inspect the sealing of the gas system and the working status of the solenoid valve.

Monthly maintenance:

Check and clean the limit switch and bumper.

Check if the oil level in the knife cylinder oil cup is sufficient, and add it promptly if it is insufficient.

Remove the anti debris cover of the shaft, clean the shaft oil pipe joint, ball guide screw, and three-axis limit switch, and check if they are working properly.

Check the effectiveness of the hard rail scraping blades on each axis.

Half year maintenance:

Replace the oil in the hydraulic unit and the oil in the tool magazine reducer.

Test the clearance between each axis and adjust and compensate as needed.

Clean the dust inside the electrical box (make sure the machine is turned off).

Conduct a comprehensive inspection to ensure that all contacts, connectors, sockets, and switches are functioning properly.

Check the sensitivity of all buttons.

Clean the cutting water tank and replace the cutting fluid.

Annual professional maintenance:

Professional engineers conduct continuity checks on the grounding protection system to ensure personal safety.

Regularly inspect components such as circuit breakers, contactors, single-phase or three-phase arc extinguishers, and eliminate potential hazards.

Ensure the normal operation of the cooling fan inside the electrical cabinet.

Check and address issues such as blown fuses or frequent tripping of air switches.

Check the vertical accuracy of each axis and adjust the geometric accuracy of the machine tool.

Check the wear and clearance of each axis motor and screw, as well as the damage of the supporting bearings, and replace them if necessary.

Check and replace the protective covers of each axis.

Straighten the screw to ensure it is in its natural state.

Check and adjust the belt drive system of the machine tool spindle.

Adjust the rotation of the tool magazine to ensure it is parallel to the table, and add lubricating grease to each moving part.

Regularly maintain the input/output devices of the CNC system.

Regular inspection and replacement of DC motor brushes.

Regularly inspect and replace storage batteries.

Clean the electrical components inside the control cabinet and check the fastening status of the wiring terminals.

3、 Environmental requirements for use

Temperature and humidity: The operating temperature of the equipment should be controlled between 15 degrees and 35 degrees to avoid environments with excessive humidity and dust.

Location selection: Avoid direct sunlight and other sources of thermal radiation, and stay away from equipment with high vibration.

Power supply quality: Adopting dedicated line power supply and adding voltage stabilizing devices to reduce the impact of power supply quality and electrical interference.

4、 Precautions

Before carrying out any maintenance work, make sure that the machine is turned off and the power is disconnected.

Use appropriate tools and cleaning agents for maintenance to avoid damaging machine components.

Maintenance work should be carried out by trained professionals or operators.

Following the above maintenance guidelines can ensure the long-term stable operation and high-precision machining capability of the CNC Router.