Comprehensive Maintenance Guide for CNC Milling Machine Systems
As an important equipment in the field of modern mechanical processing, the CNC milling machine can machine various complex surfaces on workpieces with milling cutters and is widely used in departments such as mechanical manufacturing and maintenance. To ensure the stable operation of the CNC milling machine, extend its service life and guarantee the processing accuracy, scientific and reasonable maintenance is crucial. Next, let’s delve into the key points of CNC milling machine maintenance together with the CNC milling machine manufacturer.
I. Functions and Application Scope of CNC Milling Machines
The CNC milling machine mainly uses milling cutters to process various surfaces of the workpieces. The milling cutter usually rotates around its own axis, while the workpiece and the milling cutter perform a relative feed movement. It can not only machine planes, grooves, but also process various complex shapes such as curved surfaces, gears, and spline shafts. Compared to planing machines, CNC milling machines have higher processing efficiency and can meet the processing requirements of various high-precision and complex-shaped parts, playing a key role in many industries such as aerospace, automotive manufacturing, and mold processing.
The CNC milling machine mainly uses milling cutters to process various surfaces of the workpieces. The milling cutter usually rotates around its own axis, while the workpiece and the milling cutter perform a relative feed movement. It can not only machine planes, grooves, but also process various complex shapes such as curved surfaces, gears, and spline shafts. Compared to planing machines, CNC milling machines have higher processing efficiency and can meet the processing requirements of various high-precision and complex-shaped parts, playing a key role in many industries such as aerospace, automotive manufacturing, and mold processing.
II. Daily Operating Maintenance Scope of CNC Milling Machines
(A) Cleaning Work
After the daily work is completed, thoroughly clean the iron filings and debris on the machine tool and the parts. Use dedicated cleaning tools, such as brushes and air guns, to ensure the cleanliness of the machine tool surface, workbench, fixture, and the surrounding environment.
For example, for the iron filings on the workbench surface, first sweep them with a brush, and then blow away the residual debris in the corners and gaps with compressed air.
Clean the clamping and measuring tools, wipe them clean and place them neatly for the next use.
(A) Cleaning Work
After the daily work is completed, thoroughly clean the iron filings and debris on the machine tool and the parts. Use dedicated cleaning tools, such as brushes and air guns, to ensure the cleanliness of the machine tool surface, workbench, fixture, and the surrounding environment.
For example, for the iron filings on the workbench surface, first sweep them with a brush, and then blow away the residual debris in the corners and gaps with compressed air.
Clean the clamping and measuring tools, wipe them clean and place them neatly for the next use.
(B) Lubrication Maintenance
Check the oil levels of all parts to ensure they are not lower than the oil marks. For parts that are below the standard, add the corresponding lubricating oil in a timely manner.
For example, check the lubricating oil level in the spindle box. If it is insufficient, add the appropriate type of lubricating oil.
Add lubricating oil to each moving part of the machine tool, such as guide rails, lead screws, and racks, to reduce wear and friction.
Check the oil levels of all parts to ensure they are not lower than the oil marks. For parts that are below the standard, add the corresponding lubricating oil in a timely manner.
For example, check the lubricating oil level in the spindle box. If it is insufficient, add the appropriate type of lubricating oil.
Add lubricating oil to each moving part of the machine tool, such as guide rails, lead screws, and racks, to reduce wear and friction.
(C) Fastening Inspection
Check and fasten the clamping devices of the fixture and the workpiece to ensure there is no loosening during the processing.
For instance, check whether the clamping screws of the vise are fastened to prevent the workpiece from shifting.
Check the screws and bolts of each connection part, such as the connection screws between the motor and the lead screw, and the fixing screws of the guide rail slider, to ensure they are in a fastened state.
Check and fasten the clamping devices of the fixture and the workpiece to ensure there is no loosening during the processing.
For instance, check whether the clamping screws of the vise are fastened to prevent the workpiece from shifting.
Check the screws and bolts of each connection part, such as the connection screws between the motor and the lead screw, and the fixing screws of the guide rail slider, to ensure they are in a fastened state.
(D) Equipment Inspection
Before starting the machine, check whether the electrical system of the machine tool is normal, including the power supply, switches, controllers, etc.
Check whether the display screen and buttons of the CNC system are sensitive and whether the various parameter settings are correct.
Before starting the machine, check whether the electrical system of the machine tool is normal, including the power supply, switches, controllers, etc.
Check whether the display screen and buttons of the CNC system are sensitive and whether the various parameter settings are correct.
III. Weekend Maintenance Scope of CNC Milling Machines
(A) Deep Cleaning
Remove the felt pads and conduct thorough cleaning to remove the accumulated oil stains and impurities.
Carefully wipe the sliding surfaces and guide rail surfaces, remove the oil stains and rust on the surfaces to ensure smooth sliding. For the workbench and the transverse and longitudinal lead screws, also perform a comprehensive wipe to keep them clean.
Perform detailed cleaning of the drive mechanism and the tool holder, remove dust and oil stains, and check whether the connections of each component are loose.
Leave no corner untouched, including the corners inside the machine tool, the wire troughs, etc., to ensure that the entire machine tool is free of dirt and debris accumulation.
(A) Deep Cleaning
Remove the felt pads and conduct thorough cleaning to remove the accumulated oil stains and impurities.
Carefully wipe the sliding surfaces and guide rail surfaces, remove the oil stains and rust on the surfaces to ensure smooth sliding. For the workbench and the transverse and longitudinal lead screws, also perform a comprehensive wipe to keep them clean.
Perform detailed cleaning of the drive mechanism and the tool holder, remove dust and oil stains, and check whether the connections of each component are loose.
Leave no corner untouched, including the corners inside the machine tool, the wire troughs, etc., to ensure that the entire machine tool is free of dirt and debris accumulation.
(B) Comprehensive Lubrication
Clean each oil hole to ensure the oil passage is unobstructed, and then add an appropriate amount of lubricating oil.
For example, for the oil hole of the lead screw, first rinse it with a cleaning agent and then inject new lubricating oil.
Evenly apply lubricating oil to each guide rail surface, sliding surface and each lead screw to ensure sufficient lubrication.
Check the oil level height of the oil tank body and the transmission mechanism, and add lubricating oil to the specified elevation position as needed.
Clean each oil hole to ensure the oil passage is unobstructed, and then add an appropriate amount of lubricating oil.
For example, for the oil hole of the lead screw, first rinse it with a cleaning agent and then inject new lubricating oil.
Evenly apply lubricating oil to each guide rail surface, sliding surface and each lead screw to ensure sufficient lubrication.
Check the oil level height of the oil tank body and the transmission mechanism, and add lubricating oil to the specified elevation position as needed.
(C) Fastening and Adjustment
Check and tighten the screws of the fixtures and plugs to ensure a firm connection.
Carefully check and tighten the fixing screws of the slider, the drive mechanism, the handwheel, the workbench support screws and the fork top wire, etc., to prevent loosening.
Comprehensively check whether the screws of other components are loose. If they are loose, tighten them in time.
Check and adjust the tightness of the belt to ensure smooth transmission. Adjust the gap between the lead screw and the nut to ensure good fit.
Check and adjust the connection accuracy of the slider and the lead screw to ensure the accuracy and stability of the movement.
Check and tighten the screws of the fixtures and plugs to ensure a firm connection.
Carefully check and tighten the fixing screws of the slider, the drive mechanism, the handwheel, the workbench support screws and the fork top wire, etc., to prevent loosening.
Comprehensively check whether the screws of other components are loose. If they are loose, tighten them in time.
Check and adjust the tightness of the belt to ensure smooth transmission. Adjust the gap between the lead screw and the nut to ensure good fit.
Check and adjust the connection accuracy of the slider and the lead screw to ensure the accuracy and stability of the movement.
(D) Anti-corrosion Treatment
Conduct rust removal treatment on the surface of the machine tool. If there are rusty parts, promptly remove the rust using a rust remover and apply anti-rust oil.
Protect the paint surface of the machine tool to avoid bumps and scratches. For equipment that is long-term out of use or in standby, anti-rust treatment should be carried out on the exposed and rust-prone parts such as the guide rail surface, the lead screw, and the handwheel.
Conduct rust removal treatment on the surface of the machine tool. If there are rusty parts, promptly remove the rust using a rust remover and apply anti-rust oil.
Protect the paint surface of the machine tool to avoid bumps and scratches. For equipment that is long-term out of use or in standby, anti-rust treatment should be carried out on the exposed and rust-prone parts such as the guide rail surface, the lead screw, and the handwheel.
IV. Precautions for CNC Milling Machine Maintenance
(A) Maintenance Personnel Need Professional Knowledge
Maintenance personnel should be familiar with the structure and working principle of the CNC milling machine and master the basic skills and methods of maintenance. Before conducting maintenance operations, they should undergo professional training and guidance.
(A) Maintenance Personnel Need Professional Knowledge
Maintenance personnel should be familiar with the structure and working principle of the CNC milling machine and master the basic skills and methods of maintenance. Before conducting maintenance operations, they should undergo professional training and guidance.
(B) Use Appropriate Tools and Materials
During the maintenance process, dedicated tools and qualified materials such as lubricating oil and cleaning agents should be used. Avoid using inferior or inappropriate products that may cause damage to the machine tool.
During the maintenance process, dedicated tools and qualified materials such as lubricating oil and cleaning agents should be used. Avoid using inferior or inappropriate products that may cause damage to the machine tool.
(C) Follow Operating Procedures
Carry out maintenance operations strictly in accordance with the maintenance manual and operating procedures of the machine tool. Do not arbitrarily change the maintenance process and methods.
Carry out maintenance operations strictly in accordance with the maintenance manual and operating procedures of the machine tool. Do not arbitrarily change the maintenance process and methods.
(D) Pay Attention to Safety
During the maintenance process, ensure that the machine tool is in a power-off state and take necessary safety protection measures, such as wearing gloves and goggles, to prevent accidents.
During the maintenance process, ensure that the machine tool is in a power-off state and take necessary safety protection measures, such as wearing gloves and goggles, to prevent accidents.
(E) Regular Maintenance
Formulate a scientific and reasonable maintenance plan and carry out regular maintenance at the prescribed time intervals to ensure that the machine tool is always in a good operating condition.
Formulate a scientific and reasonable maintenance plan and carry out regular maintenance at the prescribed time intervals to ensure that the machine tool is always in a good operating condition.
In conclusion, the maintenance of the CNC milling machine is a meticulous and important task that requires the joint efforts of the operators and maintenance personnel. Through scientific and reasonable maintenance, the service life of the CNC milling machine can be effectively extended, the processing accuracy and production efficiency can be improved, creating greater value for the enterprise.