Daily maintenance and precautions of laser cutting machine

Daily maintenance and precautions of laser cutting machine

The stable and normal operation of the machine is inseparable from the usual correct operation and daily maintenance. The following will introduce the daily maintenance of the laser cutting machine:

Water replacement and water tank cleaning    
The water quality and temperature of the circulating water directly affect the service life of the laser tube. It is recommended to use pure water and keep the water temperature below 35°C. If it exceeds 35℃, the circulating water needs to be replaced, or ice cubes are added to the water to reduce the water temperature (it is recommended that the user choose a cooler or use two water tanks).  
Clean the water tank: first turn off the power, unplug the water inlet pipe, let the water in the laser tube automatically flow into the water tank, open the water tank, take out the water pump, and remove the dirt on the water pump. Clean the water tank, replace the circulating water, restore the water pump back to the water tank, insert the water pipe connected to the water pump into the water inlet, and arrange all joints. Power on the water pump alone and run it for 2-3 minutes (make the laser tube full of circulating water).
Note: Make sure that the laser tube is filled with circulating water before the machine works.    

Cleaning the fan   
Long-term use of the fan will accumulate a lot of solid dust in the fan, make the fan generate a lot of noise, and it is not conducive to exhaust and deodorization. When the fan suction is insufficient and the smoke is not smooth, first turn off the power, remove the air inlet and outlet pipes on the fan, remove the dust inside, then turn the fan upside down, and pull the inner blades until they are clean , And then install the fan.

Cleaning the lens   
In the previous machine introduction, it has been mentioned that there are 3 mirrors and 1 focusing mirror on the engraving machine (the mirror No. 1 is located at the emission exit of the laser tube, which is the upper left corner of the machine, and the mirror No. 2 is located at the left end of the beam. The No. 3 reflector is located on the top of the fixed part of the laser head, and the focusing mirror is located in the adjustable lens barrel at the lower part of the laser head. The laser is reflected and focused by these lenses and emitted from the laser head. The lens is easily stained with dust or other contaminants, which can cause laser loss or damage to the lens. Do not remove the lens when cleaning the No. 1 and No. 2 lenses. Just place the lens wiping paper dipped in the cleaning solution carefully along the center of the lens. Rotating edge wipe. The No. 3 lens and focusing lens need to be taken out of the frame and wiped in the same way. After wiping, they can be replaced as they are.  
Note: ①The lens should be wiped gently, and the surface coating should not be damaged; ②The wiping process should be handled gently to prevent it from falling; ③When installing the focusing lens, be sure to keep the concave surface down.  

Cleaning of the guide rail   
Guide rails and linear shafts are one of the core components of the equipment, and their function is to play a guiding and supporting role. In order to ensure the high processing accuracy of the machine, the guide rails and straight lines are required to have high guiding accuracy and good movement stability. During the operation of the laser cutting machine, a large amount of corrosive dust and smoke will be generated during the processing of the processed parts. These smoke and dust will be deposited on the surface of the guide rail and linear shaft for a long time, which has a great impact on the processing accuracy of the equipment. And it will form corrosion spots on the surface of the linear axis of the guide rail, shortening the service life of the equipment. In order to make the machine work normally and stably and ensure the processing quality of the products, the daily maintenance of the guide rail and linear axis must be done carefully. (It is recommended to clean once every half a month and shut down the operation) (It is recommended to clean before work every day, and the equipment must be turned off) (It is recommended to clean the water tank and replace the circulating water once a week)   

Fastening of screws and couplings   
After the motion system has been working for a period of time, the screws and couplings at the motion connection will loosen, which will affect the smoothness of the mechanical motion. Therefore, during the operation of the machine, observe whether there are abnormal noises or abnormal phenomena in the transmission components, and find problems in time. Sturdy and maintained. At the same time, the machine should use tools to tighten the screws one by one after a while. The first firming should be about one month after the equipment is used.  

Inspection of light path

The optical path system of the laser engraving machine is completed by the reflection of the mirror and the focusing of the focusing mirror. In the optical path, the focusing mirror does not have an offset problem, but the three mirrors are fixed by the mechanical part, and the possibility of offset is relatively high. Large, although there will be no deviation under normal circumstances, it is recommended that the user check whether the optical path is normal before each work.

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