How to Maintain the CNC Fiber Laser Machine?

by FORSUN CNC mechanic

How to use and maintain a fiber laser cutting machine? Fiber laser cutting machine is a high-tech large-scale machinery in the classification of machinery. This kind of machinery is relatively expensive when purchased, and the professional level of technical personnel is also very high in the process of use, so we are using equipment It is necessary to process and maintain the equipment frequently, so as to prolong the service life of the machine. Familiar with the maintenance skills of fiber laser cutting machines can better exert the efficiency of the equipment and maximize the efficiency of the equipment. The following FORSUN briefly introduces the maintenance steps of the fiber laser cutting machine.

How to Maintain the CNC Fiber Laser Machine?

Maintenance of the lens

Before starting the fiber laser cutting machine, check mirrors to check whether there is dust on the mirror surface or whether the mirror surface is damaged. The maintenance of the lens of the laser cutting machine is very important, and it is very important to ensure the quality of the beam.

The lens of the laser cutting machine is easily contaminated by smoke and dust. It is recommended to clean it once a day before starting work. Generally, anhydrous industrial alcohol acetone is used to clean the lenses. Different lens cleaning methods are different. When the mirror surface is flat and there is no lens holder, use lens paper to clean; and when the mirror surface is curved or the mirror surface has a lens holder, please clean it with a cotton swab.

When using the lens, pay attention to focusing on the lens, protecting the lens, QBH head, and other optical surfaces, and do not touch it directly with your hands to prevent scratches or corrosion of the lens.

Maintenance of the cutting head

Before using every day, check whether the laser is emitted from the center of the nozzle, if not, please readjust the calibration.

Before cutting, adjust the height of the cutting head to a suitable drilling position.

When cutting, always observe whether it is cutting. If you do not cut, first raise the cutting head by hand to stop cutting, check whether the cutting parameters are correct, whether the nozzle and the protective mirror are damaged, adjust them, and then return to the uncut state, and then continue cutting.

When cutting, observe whether the cutting piece is turned over or up. If so, take over when the cutting head collides with the workpiece. If the plate is not flat, adjust it to the appropriate drilling height (3-5mm) at any time.

When cutting, observe whether the cutting head catches fire. If it catches fire, stop cutting, check whether the nozzle is worn, and judge whether the focus is changing. If so, increase or decrease the pad according to the situation.

Laser water temperature adjustment

In order to prevent condensation on the laser, the cooling water temperature of the water cooler and the temperature and humidity of the laser protection room should be adjusted in time according to the seasonal temperature and air humidity; antifreeze must be added to the water tank in winter to prevent freezing and freezing of water pipes.

The chiller is used as the cooling equipment of the fiber laser cutting machine. The chiller guarantees the normal operation of the fiber laser cutting machine at a constant temperature. Pay attention to the water temperature when working for a long time. It is recommended that the water temperature is below 35 degrees; in winter, the circulating water should be prevented from freezing and the laser tube from freezing and cracking (antifreeze can be added).

The water inside the chiller needs to be replaced regularly because long-term use is prone to scaling and reduces the cooling effect. Generally, clean the chiller 1-2 times a month, replace the internal circulating water, and use distilled water without impurities, such as pure water or mineral water. But be careful not to use tap water.

Maintenance of the guide rail frame

Each rail rack needs to be cleaned regularly to remove dust and other debris to ensure the normal operation of the equipment. The frame should be wiped and lubricated frequently to ensure that the lubrication is free of debris.

In addition, always check the steel belt to ensure that the steel belt is tight. Regularly check the straightness of the track and the verticality of the machine. If abnormalities are found, maintenance and adjustments will be carried out in time, usually at an interval of 6 months.

Attention to the working environment

The environment where the machine is located must be pollution-free, free from interference and influence from strong electricity, strong magnetism, etc. Pay attention to anti-vibration and anti-loose: the cutting machine is particularly sensitive to vibration. The working environment should be far away from places with vibration sources such as punches and heavy objects. If the connection is loose, it is recommended to install anti-vibration pads and re-reinforce.

In addition, pay attention to anti-interference and anti-leakage: the electromagnetic environment of the cutting machine mainly includes the surrounding electromagnetic field, the quality of the power supply, and the interference of signal electrical noise.

Daily maintenance requirements

A. Check and clean the workbench every day to keep the laser and laser cutting machine clean and tidy.

B. Check whether the X, Y, and Z axes can return to the origin every day, and check whether the position of the striker of the origin switch is offset.

C. Check whether the connecting wire is tight and disconnected every day, and check whether the fan of the control box is normal.

D. Clean the X-axis screws and Y-axis screws every week and then add oil.

E. Check whether the fixing screw of the screw nut is damaged and whether the joint between the water pipe and the air pipe is damaged or blocked.