Maintenance of metal fiber laser cutting machine lenses

The lens of the protective laser cutting machine is located at the lower part of the centering module, which is susceptible to smoke and dust. It is recommended to clean it once a day at the beginning of work. First, completely loosen the screws of the protective mirror drawer, pinch the two sides of the protective mirror box drawer with your thumb and index finger, slowly pull out the protective mirror box drawer, taking care not to lose the sealing rings on the upper and lower sides of the drawer, and then seal the drawer opening with adhesive paper. Prevent dust from contaminating the focusing lens. The protective lens is a flat lens, and the sealing ring and the protective lens are released by pressing the lens. When installing the lens, place the lens first, and then press the sealing ring. The collimating lens and the focusing lens are located inside the fiber cutting head, and the sequence of disassembly is recorded when disassembling, and the accuracy of reinstallation must be ensured.

1. Precautions for the use of lenses

Do not touch the focusing lens, protective lens, QBH head and other optical surfaces directly with your hands to prevent scratches or corrosion of the mirror surface. If there is oil or dust on the lens surface, it will seriously affect the use of the lens, and the lens should be cleaned in time. The surface of the optical lens is strictly prohibited to use water, detergent, etc. to clean. The surface of the lens is coated with a special film. If you use these to clean the lens, it will damage the surface of the lens. Do not place the lens in a dark and humid place, as this will cause the surface of the lens to age. When installing or replacing the reflector, focusing lens and protective lens, do not use too much pressure, otherwise it may cause the deformation of the lens and affect the quality of the beam.

2. How to install or replace the optical lens

Be careful before installing or replacing optical lenses, wear clean clothes, clean your hands with soap or detergent, and wear

Wear light and clean white gloves; it is strictly forbidden to touch the lens with any part of the hand; when taking the lens, take it from the side of the lens, do not

Touch directly on the coated surface of the lens.

When assembling the lens, do not blow into the lens with your mouth; the lens should be placed steadily on a clean table with a few pads underneath

Lens professional paper. Take care of the lens as much as possible to prevent bruises and falls, and it is not allowed to apply anything on the coating surface of the lens.

Power; the lens holder where the lens is installed should be clean, use a clean air spray gun to clean the dust and dirt in the lens holder, and then, the lens

The piece is gently placed in the lens holder.

When the lens is installed on the lens holder, do not use too much force to fix the lens, so as not to deform the lens and affect the quality of the beam.

the amount.

3. Steps to clean the lens

Different lens cleaning methods are different. When the mirror surface is flat and there is no lens holder, use lens paper to clean; when the mirror surface

When it is a curved or mirrored surface with a lens holder, clean it with a cotton swab. Specific steps are as follows:

Steps to clean the lens with lens paper: Use a clean air spray gun to blow off the dust on the surface of the lens; use alcohol or lens paper

To clean the surface of the lens, place the clean side of the lens paper flat on the surface of the lens, add 2 to 3 drops of high-purity alcohol or acetone, and slowly pull out the lens paper horizontally toward the operator. Repeat the above actions several times Until the lens surface is clean, it is forbidden to apply pressure on the lens paper to prevent scratches. If the lens surface is very dirty, fold the lens paper in half 2 to 3 times and repeat the above steps until the lens surface is clean. It is forbidden to drag dry lens paper directly on the mirror surface.

Steps to clean the lens with a cotton swab: first use a spray gun to blow off the dust on the mirror; then use a clean cotton swab to remove the dirt; use a new

A cotton swab dipped in high-purity alcohol or acetone is moved in a circular motion from the center of the lens to scrub the lens. After each week, replace it with another

A clean cotton swab, repeat the above operation until the lens is clean; observe the cleaned lens until there is no dirt on the surface of the lens

Or spots; place the cleaned lens on the lens holder according to the method described above. Prohibited to use used

The cotton swab to operate.

If there are debris that is not easy to remove on the surface of the lens, rubber air can be used to blow the surface of the lens. Clean both sides, clean

After cleaning, reconfirm that there are no residues of the following: detergent, absorbent cotton, foreign matter, and impurities. The cleaned lens cannot be exposed to

In the air, install as soon as possible or use a clean sealed container for temporary storage.

4. Storage of optical lenses

The optical lens is properly stored to keep the quality of the lens intact. The storage environment temperature is 10～30℃. Do not put the lens in a freezer or similar environment, otherwise the lens will be easily damaged by condensation and frost when taken out; the temperature of the storage environment should not be higher than

30℃, otherwise it will affect the coating on the lens surface. Keep the lens in a box, and the lens should be placed in a non-vibrating environment, otherwise it will easily cause the lens to deform, which will affect the performance of the lens.

5. Replacement of vulnerable parts

The nozzle at the lower end of the cutting head is under the worst conditions and is easily damaged. You can turn it counterclockwise to unscrew and replace it with a new nozzle. After replacement, you must first

Unscrew the nozzle and do a capacitor calibration again. When replacing the new ceramic body assembling, the two positioning posts must be aligned with the positioning of the induction seat.

Position the hole, place the ceramic body flat and straighten it by hand, then tighten the pressure ring, and then tighten the nozzle after the ceramic body is compressed. If not satisfied

The installation requirements mentioned above may damage the sensor base module parts and cause the system to fail to work normally.