The protective laser cutter lens is located in the lower part of the centering module and is easily contaminated with soot. It is recommended to clean it once a day when you start working. First loosen the mirror case screws completely, pinch the sides of the mirror case drawer with your thumb and index finger, slowly pull out the mirror case drawer, taking care not to lose the seals on the top and bottom sides of the drawer, and then seal the drawer with tape. Prevent dust from contaminating the focusing lens. Protect the lens is a flat lens, press the lens to release the seal and protect the lens. When installing the lens, place the lens first, then press the seal. The collimating and focusing lenses are located inside the fiber optic cutting head. Record the disassembly sequence when disassembling to ensure the accuracy of reassembly.

1. Precautions for lens use

Do not touch the optical surfaces of the focusing mirror, protection mirror and QBH head directly with your hands to avoid scratching or corrosion of the mirror surface. If there is oil or dust on the mirror surface, it will seriously affect the use of the lens, and the lens should be cleaned in time. Please do not use water, detergent, etc. to clean the optical lens surface. The lens surface is coated with a special film, and if these are used to clean the lens, they will damage the surface of the lens. Do not place the lens in a dark and humid place, as this will deteriorate the surface of the lens. Do not use too much pressure when installing or replacing reflectors, focusing mirrors and protective mirrors, as this may lead to lens deformation and affect the quality of the light beam.

2、How to install or replace the optical lens

Before installing or replacing optical lenses, please pay attention to wear clean clothes, clean your hands with soap or detergent, and wear light and clean white gloves; it is strictly forbidden to touch the lenses with any part of your hands; when taking the lenses, please take them from the side of the lenses and do not touch the coated surface of the lenses directly. When assembling the lenses, do not blow into the lenses with your mouth; the lenses should be placed on a clean table with a few sheets of professional lens paper underneath. When taking out the lenses, pay attention to prevent bumping and dropping, and do not apply force to the lens coating surface; the lens mount should be cleaned and cleaned with a clean air gun to clean the dust and dirt inside the lens mount. dirty, and then gently put the lens into the lens holder. When installing the lens in the lens holder, do not apply too much force when fixing the lens, so as not to deform the lens, thus affecting the quality of the beam. 

3, the steps to clean the lens

Different lenses are cleaned in different ways. When the mirror surface is flat and no mirror frame, the mirror paper can be used to wipe; when the mirror surface is curved or the mirror surface has a mirror frame, should use cotton swabs to clean. Specific steps are as follows:

Steps to clean the lens with lens paper: blow off the dust on the surface of the lens with a clean air gun; clean the surface of the lens with alcohol or lens paper, the smooth side of the lens paper should be placed flat 2-3 drops of high purity alcohol or acetone on the surface of the lens, slowly pull out the lens to level the paper towards the operator, repeat the above action several times until the surface of the lens is clean. It is strictly forbidden to apply pressure to the lens paper. To prevent scratching, if the lens surface is dirty, fold the lens paper in half 2 to 3 times and repeat the above steps until the surface is clean. Prohibit the use of dry lens paper directly on the mirror dragging. Steps to clean the lens with cotton swab: first blow off the dust on the lens with a spray gun; then remove the dirt with a clean cotton swab; use a new cotton swab dipped in high purity alcohol or acetone, make a circular motion from the center of the lens, scrub the lens, change another clean swab after each week, repeat the above operation until the lens is clean; observe the cleaned lens until there is no dirt or spots on the surface of the lens; place the lens that has been cleaned Place the lenses on the frame as described above. Do not use used cotton swabs for this purpose. If there are debris on the surface of the lens that cannot be easily removed, blow the surface of the lens with rubber air. Clean both sides, and after cleaning, reconfirm that there are no residues of the following: cleaning agent, degreasing cotton, foreign matter, and impurities. After cleaning the lens should not be exposed to the air, as soon as possible to install or temporarily stored in a clean airtight container.

4, optical lens storage

Correct storage of optical lenses can ensure that the quality of the lenses intact. The storage environment temperature is 10-30°C, the lens should not be placed in the freezer or similar environment, otherwise the removal will be dew and frost, easy to damage the lens; storage environment temperature should not be higher than 30°C, otherwise it will affect the lens surface coating. . Store the lenses in the box, the lenses should be placed in an environment without vibration, otherwise it is easy to cause deformation of the lenses, thus affecting the performance of the lenses.

5、Replacement of wearable parts. When replacing the new ceramic body assembly, the two positioning stakes must be aligned with the positioning holes of the induction seat, and the ceramic body should be flattened and straightened by hand, and then the pressure ring should be tightened. After the ceramic body is pressed tightly, the nozzle should be tightened. Failure to meet the above installation requirements may damage the components of the sensor base module and cause the system to fail to operate properly.

Translated with www.DeepL.com/Translator (free version)