After reading the maintenance content of the laser cutting machine, don’t tell me no.
1. Daily inspection and maintenance of machine tools
A. daily before starting, carefully check the pressure of the laser working gas and cutting gas, if the gas pressure is not enough, should be replaced in time.
B. Check whether the X-axis zero point, Y-axis zero point, Z-axis zero point, laser preparation status and other buttons are damaged (check the indicator light).
c. Check whether the zero point of the X-axis, Y-axis and Z-axis, the limit switch and the mounting screw of the collision block are loose, and whether the limit switch of each axis is sensitive.
D. check whether the circulating water level in the cold water machine is sufficient, if insufficient, it must be added in time.
e. Check whether there is leakage in the external light path circulation waterway, and the leakage must be handled in time, otherwise the life of the optical lens will be affected.
f. After the cutting is completed every day, check the focusing lens for damage.
g. Check whether the telescopic skin cavity of the external light path is burned or damaged.
h. After the daily work is completed, clean up the cutting waste in time, clean the work site, and keep the work site neat and clean. At the same time, clean the equipment to ensure that all parts of the equipment are clean and free of stains, and no sundries can be placed in all parts of the equipment.
j. After the daily work is completed, open the drain valve of the air reservoir at the bottom of the air compressor for drainage. After the waste water is drained, close the drain valve.
k. After the daily work is completed, shut down according to the shutdown steps, and then turn off the total power supply of the whole machine tool.
2. Weekly and irregular maintenance of machine tools
A. regularly clean up the sundries in the air outlet to ensure the ventilation effect.
B. Regularly check the filter in the gas path and remove the water and sundries in the filter in time.
c. Regularly check whether the screws of the travel switch bracket and the striker bracket are loose.
D. to timely clean up the dust on the electric control cabinet ventilation fan filter, to ensure good ventilation, in order to facilitate the internal electrical components heat dissipation.
E. clean the bed in time to protect the debris in the skin cavity of the guide rail, so as not to damage the guide rail, thus prolonging the service life of the guide rail.
f. After the machine tool is installed and used for a period of time, the level of the machine tool should be readjusted to ensure the cutting accuracy of the machine tool.
g. Check the lubricating oil filling of X-axis guide rail and screw, Y-axis guide rail and screw, Z-axis guide rail and screw every other week to keep the lubrication of all moving parts and prolong the service life of X, Y and Z-axis guide rail and screw.
H. according to the workshop environment conditions from time to time (at least once a month) to check the mirror and focusing mirror surface pollution, timely clean the optical lens, in order to ensure its service life.
3. Maintenance of optical lens outside the machine tool
A. optical lens (mirror, focusing mirror, etc.) surface, do not touch directly with the hand, so easy to cause mirror scratch. If there is oil or dust on the mirror, it will seriously affect the use of the lens, and the lens should be cleaned in time.
B. optical lens is strictly prohibited to use water, detergent and other cleaning. 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.
c. Do not place the lens in a dark and humid place, which will cause the lens surface to age.
D. The surface of the lens is stained with dust, dirt, or water vapor, which is easy to absorb laser and cause damage to the lens coating; the quality of the laser beam is affected, and the laser beam is not generated.
E when the lens is damaged, contact the big family laser after-sales service department for repair in time, try not to use the damaged lens, otherwise it will accelerate the damage to the repairable lens.
Do not use too much pressure when installing or replacing the reflector or focusing lens, otherwise it will cause deformation of the lens, which will affect the quality of the beam.
4. Method of installing or replacing optical lenses
A. Before installing optical lenses, pay attention to: wear clean, clean hands with soap or detergent, and wear white, clean and light gloves; It is strictly forbidden to contact the lens with any part of the hand; When taking the lens, wear gloves and take it from the side of the lens, and do not directly touch the coated surface of the lens.
B. When assembling the lens, do not use the mouth to blow on the lens; the lens should be placed on a clean desktop with a few sheets of lens paper under it. Take the lens should be as careful as possible to prevent bruises and falls, and in the coating surface of the lens, are not allowed to apply any force; install the lens base should be clean, with a clean air spray gun to clean up the dust and dirt in the mirror base, and then take out the lens, gently into the mirror base. c. When installing the lens on the lens base, do not use too much force to fix the lens, so as not to deform the lens and affect the quality of the beam.
D. precautions when replacing optical lenses: be very careful when taking out the lenses from the packaging box to prevent the lenses from being damaged; Do not apply any pressure to the lenses before the wrapping paper is opened; When taking out the reflector and focusing lens from the packaging box, wear clean gloves and take them from the side of the lens. When removing the wrapping paper on the lens, avoid dust and other objects falling on the lens. After taking out the lens, remove the dust on the mirror surface with a spray gun, and then put the lens on the special paper for optical lens; Remove the dust and dirt on the lens support frame and fixing frame, and avoid other foreign objects falling on the lens during assembly; When installing the lens on the lens base, do not use excessive force to avoid lens deformation; After the lens is assembled, use a clean air spray gun to remove the dust and foreign objects on the lens again.
5. Steps to clean the lens
Different lenses, cleaning methods are different. When the mirror surface is flat and there is no mirror seat, use lens paper to clean, such as cleaning the mirror; when the mirror surface is curved or the mirror surface has a mirror seat, use a cotton swab to clean, such as cleaning the focusing mirror.
A. the steps of cleaning the lens with lens paper: blow off the dust on the surface of the lens with a blowing balloon; Clean the surface of the lens with alcohol or lens paper. Do not drag the lens paper directly on the mirror with dry lens paper. Instead, place the lens paper flat on the surface of the lens, drop 2-3 drops of high-purity alcohol or high-purity acetone, slowly pull out the lens paper horizontally towards the operator, and repeat the above actions for several times, until the mirror surface is clean; if the mirror surface is very dirty, fold the lens paper in half 2 to 3 times and repeat the above steps until the mirror surface is clean.
B the steps of cleaning the lens with cotton swabs: first blow off the dust on the mirror surface with a spray gun; Then use a clean cotton swab to remove the dirt. Use a new cotton swab stained with high purity alcohol or acetone to move in a circle from the center of the lens to scrub the lens. After wiping for one week, replace it with another clean cotton swab and repeat the above operation until the lens is clean. Never use the used cotton swab; clean the lens with a clean cloth to remove the residual marks on the mirror surface. Be careful not to scratch the mirror surface. Take the cleaned lens to a place with sufficient light for observation. If the reflection of the lens is good, it indicates that the lens has been cleaned. If the reflection of the lens is not good, continue to clean the lens. Place the cleaned lens on the lens holder according to the method described above.
6. Daily maintenance of laser
The laser should be maintained daily before starting up.
1) Inspection of laser working gas and cutting gas: Check the cylinder of laser working gas
2) Check that the cooling water pressure is kept between 3.5 and 5Bar.
3) Check the temperature of the cooling water, the temperature of the water required by the selected laser is preferred.
4) Check the height of the oil level in the laser vacuum pump. If it is not enough, it needs to be added.
5) Check whether there is any leakage in the oil circuit, water circuit and gas circuit of the laser, and whether there is any leakage in the pneumatic components and pipe joints of the vacuum pump and resonant cavity.
7. Weekly maintenance of laser
1) Check whether the gas mixing unit of the laser has oil and water, and if so, clean it in time.
Li; Check the laser gas drying filter. If more than 1/4 of the color turns red or white, it needs to be replaced. Its normal color is blue.
2) Check the oil level of the vacuum pump and Luozi pump. If it is not enough, add it.
3) Check the filter of the chiller for impurities.
4) Check whether there are impurities in the cooling water circuit of the laser.
5) Check the condensate level in the compressed air separator (located in the air supply unit). Check the oil level of the vacuum pump (under the air supply unit). When the pump is in a cold state, the oil level should be between 5mm-0mm in the middle line of the oil window, and then add oil when necessary.
Check the oil level of Roots pump
The oil level in the gearbox of the Roots pump can be seen through the oil window on the end face of the gearbox. When the pump is turned off and in a cold state, the oil level should be between 5mm-0mm of the glass middle line. If necessary, the type of HTCL2100 oil should be added.
Semi-annual maintenance of the laser (or after 2000 hours of operation)
1) check the laser head cooling water pipe for corrosion, if there is to deal with or replace the pipeline.
2) Check whether the excitation power supply tank leaks.
3) Check whether the high-voltage cable is damaged.
4) Check and clean the inside of the laser resonator and all the lenses, including the front window mirror, tail mirror, reflector, etc.
5) After the internal lens of the laser is cleaned, the light mode of the laser should be readjusted until the correct mode is reached.
6) Replace the vacuum pump oil.
7) Replace the Roots pump oil.
8) Tighten all plugs carefully to ensure the air tightness of Roots pump.
9) There is a white plastic plug on the gas diverter at the outlet of Roots pump. Clean the plug and coat its inner surface with silicone grease. The purpose of this silicone grease is to adsorb and trap physical impurities in the circulating gas of the laser. (Only silicon-free high vacuum grease can be used, and the coating should be very thin).
10. Maintenance and maintenance of chillers
The chiller should be regularly maintained to ensure that the machine is in good condition.
If you work in the state, if you encounter a failure, you should ask professional and technical personnel to repair it, and you must not disassemble the machine by yourself.
Daily maintenance of chillers should pay attention to the following aspects:
1) Regularly clean the heat sink. The cleaning method is: use a brush to carefully brush the heat sink, then blow it clean with compressed air, and if necessary, use water to clean and rinse the special air conditioning fin cleaning agent (common name dust).
2) Dust the condenser regularly (the method is the same as above).
3) Regularly check the water level in the water tank of the chiller. If the water level is too low, add pure water or deionized water in time.
4) Regularly check the terminals of electrical appliances and remove dust (after power failure).
5) Regularly check whether the joints in the waterway system are leaking and whether the pipelines are aging. If there is any leakage, replace the relevant components in time.
6) Regularly check the water quality in the water tank of the chiller. If the water quality of the cooling water deteriorates, turbidity, and transparency decreases, all the deteriorated cooling water should be discharged in time and replaced with new cooling water.
7) Regularly clean the impurities on the filter element. If the filter element is damaged, it should be replaced in time. The replaced filter element must adopt the standard filter element required by the manufacturer.
11. Maintenance and maintenance of air compressor
1) Before all maintenance operations, the air compressor must be closed and the compressed air in the air storage tank must be drained;
2) Drain 3 to 8 times a day (depending on the air humidity), and drain the air and water in the air storage tank after work;
3) Clean the air filter every half month (the cleaning cycle should be shortened if the working environment is bad);
4) Replace the filter element every 1200 hours of work, check and clean all parts, and replace the valve plate if necessary.
5) The oil-free air compressor shall be filled with grease to the crankshaft bearing in the compressor head every 1000 hours of operation;
6) Clean the air filter every half month (the cleaning cycle should be shortened if the working environment is bad);
7) Refer to the air compressor manual.
12, cold and dry machine maintenance and maintenance
1) Drain 3 to 8 times a day (depending on the air humidity), and drain the air and water in the machine after work;
2) Clean the air filter element once a month;
3) Dust and clean the condenser cooling fins once a month; 4) Replace the air filter element every six months.
13. Maintenance and maintenance of regulated power supply
1) After the new regulated power supply runs for one month, it is necessary to cut off the main power supply and re-tighten all the connection terminals in the regulator, especially the main circuit;
2) Check the elasticity of the sliding carbon brush every three months, and use dry compressed air to blow out the toner and dust adhered to the components in the regulator.