Protective lens function of laser cutting head
Protective lens is a very important precision component in the optical path system of laser cutting machine. During processing, the laser cutting head will gather a lot of energy. In order to prevent dust and slag splashing, and protect the internal optical path and core components of the laser cutting head, so the laser cutting head needs to be installed with protective lens to effectively protect the laser cutting head from damage.
What are the reasons for the burnout of protective lenses
The protective lens of laser cutting machine is easy to burn out. In most cases, it is due to improper equipment maintenance, such as the lens is not stopped in time due to dust pollution, the protective lens temperature is high and there is moisture; The auxiliary gas blown out is not pure, the pressure does not meet the standard, the optical path of the emitted laser is offset, the aperture of the cutting nozzle is too large, the use of inferior protective lenses, the collision between the protective lenses and other items, etc., will affect the protective lenses. It is easy to cause the lens to burn out or break.
The protective lens of laser cutting machine is a consumable and vulnerable part, which generally needs to be replaced in time. When the power is increased to more than 10000 watts, once there is dust pollution on the lens, and the light is not stopped in time, the burning point deteriorates, and the instantly absorbed energy increases, it is easy to burst. When the protective lens is in a high temperature state, if there is water on the protective lens, it may burst.
How to protect the lens from damage
There are many reasons that affect the service life of protective lenses. When using the cutting machine, we can adopt the following ways to maintain the lenses from damage.
Reasonably set perforation times
The higher the output frequency of the laser cutting machine is, the easier it is to cause perforation and sputtering damage to the lens. Therefore, when using the laser cutting machine, we should set the perforation parameters as reasonably as possible to protect the lens.
Do a good job in cleaning and dedusting
Check the protective lens regularly and remove the stains and liquids on the lens in time. Pay attention not to use too much force during cleaning to prevent damage to the lens. Before using the new protective lens, the lens should be cleaned and dedusted before use.
Check the running state of the air compressor
In addition to checking the laser cutting head and protective lens, it is also necessary to regularly check whether the operation status of the air compressor and dryer is normal.
The bursting of the protective lens is easy to cause the failure and damage of the laser cutting head, so we must pay attention to the equipment maintenance during the use of the equipment. Protective lenses can be reused for a long time, prolong the service life and save costs.