How often are laser cutting machine accessories replaced? Laser cutting machine protective lenses
Common laser cutting machine accessories and replacement cycle
1. Focusing lens: As the core component of the laser system, the focusing lens is responsible for focusing the laser onto the material for cutting. Under normal usage, the service life of the focusing lens is approximately 2400 hours, and the actual replacement cycle is 3-6 months.
2. Protective lenses: The main function of protective lenses is to prevent debris generated during the cutting process from damaging the laser head and lenses. Generally speaking, each protective lens can work for about 200 hours, and it is usually replaced every 7 days in actual use.
3. Reflective lenses: Reflective lenses play a role in refracting and concentrating light beams in laser systems, and damaged reflective lenses may cause poor cutting performance. The service life of reflective lenses varies depending on the material and usage environment, and it is necessary to regularly inspect their surface for damage and replace them according to the actual situation.
4. Expanding lenses: Expanding lenses are mainly used to change the diameter and divergence angle of laser beams. The service life of beam expanding lenses is similar to that of reflective lenses, and they need to be replaced in a timely manner according to the actual usage of the equipment.
5. Copper nozzle: The copper nozzle is responsible for spraying auxiliary gas into the cutting area to blow away debris and improve the cutting effect. The replacement cycle of copper nozzles usually does not exceed two months, but due to differences in auxiliary gas pressure and nozzle aperture size, the specific replacement time needs to be determined based on the actual situation.
Laser cutting head protection lens function
Protective lenses are very important precision components in the optical path system of laser cutting machines. During processing, the laser cutting head will accumulate a large amount of energy. To prevent dust and slag splashing, and protect the internal optical path and core components of the laser cutting head, protective lenses need to be installed on the laser cutting head to effectively protect it from damage.
What are the reasons for the burnout of protective lenses
The protective lenses of laser cutting machines are prone to burn out in most cases due to improper equipment maintenance, such as dust pollution on the lenses and failure to stop the light in a timely manner, high temperature and moisture in the protective lenses; The auxiliary gas blown out is impure, the pressure does not meet the standard, the emission laser path is offset, the cutting nozzle aperture is too large, inferior protective lenses are used, and the protective lenses collide with other objects, all of which can have an impact on the protective lenses. It is easy to cause the lens to burn or break.
The protective lenses of laser cutting machines are consumable and vulnerable parts, which generally need to be replaced in a timely manner. When the power is increased to over ten thousand watts, once dust pollution occurs on the lens and the burning point is not stopped in time, the energy absorbed instantly increases, and it is easy to explode. When the protective lens is in a high temperature state, there is a possibility of cracking if there is moisture on the protective lens.
How to protect lenses from damage
There are many reasons that affect the service life of protective lenses. When using a cutting machine, we can use the following methods to maintain the lenses from being damaged.
Reasonably set the number of perforations
The higher the output frequency of the laser cutting machine, the more likely it is to cause perforation and sputtering damage to the lens. Therefore, when using the laser cutting machine, we should try to set the perforation parameters as reasonably as possible to protect the lens.
Do a good job in cleaning and dust removal
Regularly inspect the protective lenses and promptly remove any stains and liquids present on the lenses. When cleaning, be careful not to use excessive force to prevent damage to the lenses. Before using new protective lenses, they must be cleaned and dusted before use.
Check the operating status of the air compressor
In addition to checking the laser cutting head and protective lenses, it is also necessary to regularly check the operation status of the air compressor and dryer.
The bursting of protective lenses can easily cause malfunctions and damage to the laser cutting head, so it is important to pay attention to equipment maintenance during use. Protecting lenses is essential for long-lasting reuse, extending service life, and saving costs.
