Laser optical lenses play a crucial role in laser welding systems by guiding, focusing, and reflecting laser beams, enabling control and adjustment of the laser system's optical path. Here are several common types of lenses found in laser welding equipment:

Protective Lens: Positioned at the front of the laser welding equipment's optical path, the protective lens shields the focusing lens. During laser welding, the process releases a significant amount of gas and splatter, which could potentially damage the focusing lens. The protective lens serves as a safeguard, extending the lifespan of the lens.

Focusing Lens: The focusing lens concentrates the laser beam onto a specific point on the work surface, creating a high-temperature zone for cutting or welding operations. Its design allows for the concentration of laser energy, increasing energy density and achieving precise processing.

Reflective Lens: This optical component reflects light and is commonly used in fiber laser systems as an end mirror, fold mirror, or turning mirror in external optical path systems. The selection and adjustment of reflective lenses are crucial for laser transmission and control.

Collimating Lens: Typically used in collimating optical paths, the collimating lens transforms a divergent light path into a parallel light path. When combined with different optical elements, it optimizes the collimation of light beams for various measurement processes, ensuring stable laser beam transmission and precise positioning.

The selection and arrangement of these laser optical lenses significantly impact the performance, accuracy, and stability of laser systems. Different laser applications may require specifically designed optical elements to meet unique requirements.

In the laser welding machine's optical path system, optical lenses are consumables. To minimize operating costs, it is essential to strictly adhere to cleaning procedures according to specifications. During the cleaning and replacement process, precautions should be taken to avoid contaminating or damaging the lenses. After installing new lenses, regular inspections of protective lenses should be conducted, and timely cleaning is necessary.

For daily lens replacement, the following measures should be taken:

Ensure the cleanliness around the cutting head protective window before removing the lens. Avoid blowing air towards the cutting head to prevent introducing dust into the interior during lens removal.

Do not touch lenses with bare fingers during installation. Carefully peel off the protective layer without touching the lens surface.

When handling lenses, grasp the edges and place them on lens cleaning paper or a dust-free cloth.

Avoid speaking over the lenses and keep all contaminants away from the working environment.

For daily maintenance and identification of lenses, the following steps can be :

For Mild Contamination (Dust, Fiber Particles): Gently blow off loose contaminants from the lens surface using an air blower. If this step doesn't remove the contamination, proceed to step 2.

For Mild Contamination (Stains, Fingerprints): Dampen a clean, unused cotton swab paper with alcohol or another lens cleaner. Gently wipe the lens surface without applying excessive force. Drag the wet cotton swab slowly across the lens surface, allowing the liquid left behind to evaporate immediately. This process should leave no traces. Use an air blower for cleanliness.

For Severe Contamination (Splatter): Immediately replace the lens with a new one to prevent further contamination of other lenses.

Please note that the translation provided is a general interpretation, and some technical terms may vary based on specific industry jargon or standards.