The price of Cnc 12kw fiber laser cutting is not low, at least hundreds of thousands of more than millions. So as far as possible to prolong the service life of 12kw fiber laser cutting to better save production costs, to win greater interests. It can be seen that the daily maintenance and maintenance of laser cutting machine is very important. The following are mainly explained from six aspects:
Circulating water replacement and water tank cleaning: the laser tube must be filled with circulating water before the machine works. The quality and temperature of circulating water directly affect the service life of the laser tube. Therefore, it is necessary to replace the circulating water and clean the water tank regularly. It's best to do this once a week.
Two. Fan cleaning: the use of the fan in the machine for a long time will make the fan accumulate a lot of solid dust, so that the fan produces a lot of noise, but also not conducive to exhaust and deodorization. When the fan suction is insufficient and smoke exhaust is not free, it is necessary to clean the fan.
Three. Lens cleaning: there will be some mirrors and focusing mirrors on the machine. Laser light is reflected through these lenses and then focused out of the laser head. The lens is easy to get dust or other pollutants, resulting in laser loss or lens damage. So clean your lenses every day. While cleaning, pay attention to: 1. The lens should be gently wiped, do not damage the surface coating; 2. The wiping process should be handled gently to prevent falling; 3. When installing the focusing mirror, ensure that the concave surface is downward.
Four. Guide rail cleaning: guide rail, linear axis as one of the core components of the equipment, its function is to play a guiding and supporting role. In order to ensure that the machine has a higher processing accuracy, it is required that the guide rail and straight line have a higher guiding accuracy and good movement stability. During the operation of the equipment, a large number of corrosive dust and smoke will be generated during the processing of the workpiece, and these smoke and dust will be deposited on the surface of the guide rail and linear axis for a long time, which has a great impact on the processing accuracy of the equipment, and will form corrosion spots on the surface of the guide linear axis, shortening the service life of the equipment. So clean the machine guide rail every two weeks. Turn off the machine before cleaning.
Five. Fastening of screws and couplings: the movement system in the work for a period of time, the screws and couplings at the joint of the movement will loosen, will affect the stability of the mechanical movement, so in the operation of the machine to observe the transmission parts have abnormal sound or abnormal phenomenon, found problems to timely firm and maintenance. At the same time, the machine should be hardened one screw at a time with tools. The first hardening should be about a month after the equipment is used.
Six. Light path check: machine light path system is made up of mirror reflection, together with the focus lens focusing focus lens in the optical path was not found deviation problem, but the three mirror is composed of mechanical part is fixed, the possibility of deviation is bigger, although usually does not happen, but suggest user before each work be sure to check the light path is normal.
X axis guide and lead screw, Y axis guide and lead screw, Z axis guide and lead screw lubricating oil filling must be checked every other week to maintain the lubrication of all moving parts and extend the service life of X, Y, Z axis guide and lead screw. B. Inspect the surface pollution of the mirror and focusing lens irregularly (at least once a month) according to the environment of the workshop, and clean the optical lens in time to ensure its service life (see maintenance of optical lens for details)
Clean up the sundries at the outlet regularly to ensure the effect of the exhaust.
Check the filter in the air path regularly, remove water and impurities in the filter in time.
Check regularly whether the screw of travel switch bracket and bump block bracket is loose.
The dust on the filter net of the electric control cabinet ventilator should be cleaned in time to ensure good ventilation and facilitate heat dissipation of the internal electrical components.
Clean the body guide rail in time to protect the impurities in the skin cavity, so as not to damage the guide rail, so as to prolong the service life of the guide rail.
After the machine is installed and used for a period of time, the level of the machine should be adjusted again to ensure the cutting accuracy of the machine
The lens cleaning
In the process of replacement, the placement, detection and installation of optical lenses should be paid attention to make the lenses free from damage and pollution. After a new lens is installed, it should be cleaned regularly.
When the laser cuts the material, the working surface releases a large amount of gas and splashes, which can cause damage to the lens. When contaminants land on the surface of the lens, they absorb energy from the laser beam, causing a thermal lensing effect. If the lens has not developed thermal stress, the operator can remove it and clean it.
In the process of lens installation and cleaning, any sticky matter, or even fingernail oil droplets, will improve the lens absorption rate, reduce the service life. Therefore, the following precautions must be taken:
1. Do not install lenses with bare fingers. Gloves or rubber gloves should be worn.
2. Do not use sharp instruments to avoid scratching the lens surface.
3. Do not touch the film when taking the lens, but hold the edge of the lens.
4, lenses should be placed in a dry, clean place to detect and clean. A good table surface should have several layers of cleaning paper towels, and several sheets of cleaning lens cotton paper.
5, users should avoid talking over the lens, and keep food, drink and other potential pollutants away from the working environment.
Cleaning lenses should be done using less risky methods. The following steps are designed for this purpose and should be used by users. First of all, it is necessary to blow off the floating object on the surface of the original with a balloon, especially the lens with tiny particles and floc on the surface. But do not use compressed air from the production line, because these air will contain oil mist and water droplets, which will deepen the pollution of the lens.
The second step is to clean the lens with acetone. Acetone at this level is almost anhydrous, which reduces the likelihood of lens contamination.
Cotton balls dipped in acetone must be cleaned under light and moved in circles. Once a q-tip is dirty, it must be replaced. Cleaning should be done at one time to avoid the generation of wave bars. If the lens has two coated surfaces, such as a lens, each surface needs to be cleaned in this way. The first side needs to be placed on a clean sheet of lens paper for protection.
If acetone does not remove all the dirt, then rinse with vinegar. Vinegar cleaning is used to dissolve dirt to remove dirt, but will not cause damage to the optical lens. This vinegar can be experimental grade (diluted to 50% strength) or household white vinegar with 6% acetic acid. The cleaning procedure is the same as acetone cleaning, then acetone is used to remove the vinegar and dry the lens, changing cotton balls frequently to completely absorb the acid and hydrate. Until it's clean.
When contaminants and lens damage cannot be removed by cleaning, especially when the film is burned out due to metal splashes and dirt, the only way to restore good performance is to replace the lens.
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