“Daily Maintenance Regulations for CNC System of Machining Centers”
In modern manufacturing, machining centers have become key equipment due to their high-precision and high-efficiency processing capabilities. As the core of a machining center, the stable operation of the CNC system is crucial for ensuring processing quality and production efficiency. To ensure the normal operation of the CNC system and extend its service life, the following are the regulations that need to be followed for the daily maintenance of the CNC system as popularized by machining center manufacturers.
I. Personnel Training and Operating Specifications
Professional training requirements
Programmers, operators, and maintenance personnel of the CNC system must undergo specialized technical training and be fully familiar with the principles and structures of the CNC system, strong electrical configuration, mechanical, hydraulic, and pneumatic parts of the machining center they are using. Only with solid professional knowledge and skills can the CNC system be operated and maintained correctly and efficiently.
Reasonable operation and use
Operate and use the CNC system and machining center correctly and reasonably in strict accordance with the requirements of the machining center and system operation manual. Avoid faults caused by improper use, such as incorrect programming instructions and unreasonable processing parameter settings, which may cause damage to the CNC system.
Professional training requirements
Programmers, operators, and maintenance personnel of the CNC system must undergo specialized technical training and be fully familiar with the principles and structures of the CNC system, strong electrical configuration, mechanical, hydraulic, and pneumatic parts of the machining center they are using. Only with solid professional knowledge and skills can the CNC system be operated and maintained correctly and efficiently.
Reasonable operation and use
Operate and use the CNC system and machining center correctly and reasonably in strict accordance with the requirements of the machining center and system operation manual. Avoid faults caused by improper use, such as incorrect programming instructions and unreasonable processing parameter settings, which may cause damage to the CNC system.
II. Maintenance of Input Devices
Maintenance of paper tape reader
(1) The paper tape reader is one of the important input devices of the CNC system. The tape reading part is prone to problems, leading to incorrect information read from the paper tape. Therefore, the operator should check the reading head, paper tape platen, and paper tape channel surface every day, and wipe off the dirt with gauze dipped in alcohol to ensure the accuracy of tape reading.
(2) For the moving parts of the paper tape reader, such as the driving wheel shaft, guide roller, and compression roller, they should be cleaned regularly every week to keep their surfaces clean and reduce friction and wear. At the same time, lubricating oil should be added to the guide roller, tension arm roller, etc. once every six months to ensure smooth operation.
Maintenance of disk reader
The magnetic head in the disk drive of the disk reader should be cleaned regularly with a special cleaning disk to ensure the correct reading of disk data. As another important input method, the data stored on the disk is crucial for the operation of the machining center, so the disk reader should be kept in good condition.
Maintenance of paper tape reader
(1) The paper tape reader is one of the important input devices of the CNC system. The tape reading part is prone to problems, leading to incorrect information read from the paper tape. Therefore, the operator should check the reading head, paper tape platen, and paper tape channel surface every day, and wipe off the dirt with gauze dipped in alcohol to ensure the accuracy of tape reading.
(2) For the moving parts of the paper tape reader, such as the driving wheel shaft, guide roller, and compression roller, they should be cleaned regularly every week to keep their surfaces clean and reduce friction and wear. At the same time, lubricating oil should be added to the guide roller, tension arm roller, etc. once every six months to ensure smooth operation.
Maintenance of disk reader
The magnetic head in the disk drive of the disk reader should be cleaned regularly with a special cleaning disk to ensure the correct reading of disk data. As another important input method, the data stored on the disk is crucial for the operation of the machining center, so the disk reader should be kept in good condition.
III. Preventing Overheating of the CNC Device
Cleaning of ventilation and heat dissipation system
The machining center needs to regularly clean the ventilation and heat dissipation system of the CNC device. Good ventilation and heat dissipation is the key to ensuring the stable operation of the CNC system. Because the CNC device generates a large amount of heat during operation, if the heat dissipation is poor, it will lead to excessive temperature of the CNC system and affect its performance and service life.
(1) The specific cleaning method is as follows: First, unscrew the screws and remove the air filter. Then, while gently vibrating the filter, use compressed air to blow off the dust inside the air filter from the inside to the outside. If the filter is dirty, it can be rinsed with neutral detergent (the ratio of detergent to water is 5:95), but do not rub it. After rinsing, place it in a cool place to dry.
(2) The cleaning frequency should be determined according to the workshop environment. Generally, it should be inspected and cleaned once every six months or a quarter. If the workshop environment is poor and there is a lot of dust, the cleaning frequency should be appropriately increased.
Improving environmental temperature
Excessive environmental temperature will have an adverse effect on the CNC system. When the temperature inside the CNC device exceeds 40 degrees, it is not conducive to the normal operation of the CNC system. Therefore, if the environmental temperature of the CNC machine tool is high, the ventilation and heat dissipation conditions should be improved. If possible, air conditioning devices should be installed. The environmental temperature can be reduced by installing ventilation equipment, adding cooling fans, etc. to provide a suitable working environment for the CNC system.
Cleaning of ventilation and heat dissipation system
The machining center needs to regularly clean the ventilation and heat dissipation system of the CNC device. Good ventilation and heat dissipation is the key to ensuring the stable operation of the CNC system. Because the CNC device generates a large amount of heat during operation, if the heat dissipation is poor, it will lead to excessive temperature of the CNC system and affect its performance and service life.
(1) The specific cleaning method is as follows: First, unscrew the screws and remove the air filter. Then, while gently vibrating the filter, use compressed air to blow off the dust inside the air filter from the inside to the outside. If the filter is dirty, it can be rinsed with neutral detergent (the ratio of detergent to water is 5:95), but do not rub it. After rinsing, place it in a cool place to dry.
(2) The cleaning frequency should be determined according to the workshop environment. Generally, it should be inspected and cleaned once every six months or a quarter. If the workshop environment is poor and there is a lot of dust, the cleaning frequency should be appropriately increased.
Improving environmental temperature
Excessive environmental temperature will have an adverse effect on the CNC system. When the temperature inside the CNC device exceeds 40 degrees, it is not conducive to the normal operation of the CNC system. Therefore, if the environmental temperature of the CNC machine tool is high, the ventilation and heat dissipation conditions should be improved. If possible, air conditioning devices should be installed. The environmental temperature can be reduced by installing ventilation equipment, adding cooling fans, etc. to provide a suitable working environment for the CNC system.
IV. Other Maintenance Points
Regular inspection and maintenance
In addition to the above key maintenance contents, the CNC system should also be comprehensively inspected and maintained regularly. Check whether the various connection lines of the CNC system are loose and whether the contact is good; check whether the display screen of the CNC system is clear and whether the display is normal; check whether the control panel buttons of the CNC system are sensitive. At the same time, according to the usage of the CNC system, software upgrades and data backups should be performed regularly to ensure the stability and security of the system.
Preventing electromagnetic interference
The CNC system is easily affected by electromagnetic interference. Therefore, measures should be taken to prevent electromagnetic interference. For example, keep the machining center away from strong magnetic field sources, use shielded cables, install filters, etc. At the same time, keep the grounding of the CNC system good to reduce the influence of electromagnetic interference.
Do a good job in daily cleaning
Keeping the machining center and the CNC system clean is also an important part of daily maintenance. Regularly clean the oil stains and chips on the worktable, guide rails, lead screws and other parts of the machining center to prevent them from entering the inside of the CNC system and affecting the normal operation of the system. At the same time, pay attention to keeping the control panel of the CNC system clean and avoid liquids such as water and oil from entering the inside of the control panel.
Regular inspection and maintenance
In addition to the above key maintenance contents, the CNC system should also be comprehensively inspected and maintained regularly. Check whether the various connection lines of the CNC system are loose and whether the contact is good; check whether the display screen of the CNC system is clear and whether the display is normal; check whether the control panel buttons of the CNC system are sensitive. At the same time, according to the usage of the CNC system, software upgrades and data backups should be performed regularly to ensure the stability and security of the system.
Preventing electromagnetic interference
The CNC system is easily affected by electromagnetic interference. Therefore, measures should be taken to prevent electromagnetic interference. For example, keep the machining center away from strong magnetic field sources, use shielded cables, install filters, etc. At the same time, keep the grounding of the CNC system good to reduce the influence of electromagnetic interference.
Do a good job in daily cleaning
Keeping the machining center and the CNC system clean is also an important part of daily maintenance. Regularly clean the oil stains and chips on the worktable, guide rails, lead screws and other parts of the machining center to prevent them from entering the inside of the CNC system and affecting the normal operation of the system. At the same time, pay attention to keeping the control panel of the CNC system clean and avoid liquids such as water and oil from entering the inside of the control panel.
In conclusion, the daily maintenance of the CNC system of a machining center is an important and meticulous work. Operators and maintenance personnel need to have professional knowledge and skills and operate in strict accordance with the maintenance regulations. Only by doing a good job in the daily maintenance of the CNC system can the stable operation of the machining center be ensured, production efficiency be improved, and the service life of the equipment be extended. In actual work, a reasonable maintenance plan should be formulated according to the specific situation and usage environment of the machining center and implemented seriously to provide strong support for the production and operation of enterprises.