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Recently, many manufacturers have been shutting down for holidays. As a sharp tool for sheet metal processing, laser cutting machines must have brought a lot of convenience to our customers. In order to make the laser cutting machine run better after the year and avoid unexpected failures during the holiday, it is necessary to do a maintenance at this time.
The normal operation of many mechanical equipment requires corresponding regular maintenance and maintenance, and the fiber laser cutting machine is no exception. Regular maintenance and maintenance can effectively delay the reduction of the cutting efficiency of the laser cutting machine and avoid the appearance of sudden failures. So how should the laser cutting machine be maintained and maintained?
1. Maintenance of cooling system
The water inside the water cooler needs to be replaced regularly, usually every 3-6 months. If the water is not changed for a long time, scale will be formed and the waterway will be blocked. The quality and temperature of the cooling water will directly affect the service life of the laser tube. It is recommended that the water temperature be within 35°, and deionized water or distilled water should be used. When the temperature is below zero, it is recommended to add antifreeze to prevent the liquid from freezing and cracking the pipeline.
Keep the water flowing at all times. The cooling water is responsible for taking away the heat generated by the laser tube. The higher the water temperature, the lower the optical output power. The best water temperature is 15-20°C; when the water is cut off, the tube end will burst due to the heat accumulation in the laser cavity, or even damage the laser power supply. . Therefore, it is necessary to check whether the cooling water is smooth at any time. When the water pipe has a hard bend (dead bend) or falls off, and the water pump fails, it must be repaired in time to avoid power drop or even damage to the equipment.
2. Maintenance of dust removal system
When the fan is used for a long time, a lot of dust will accumulate in it, which will affect the exhaust and deodorization effect, and will also generate noise. When it is found that the suction power of the fan is insufficient and the smoke exhaust is not smooth, first turn off the power, remove the air inlet duct and the air outlet duct on the fan, remove the dust inside, then turn the fan upside down, and move the fan blades inside until it is clean. Then install the fan. Fan maintenance cycle: about a month.
After the machine works for a period of time, the surface of the lens will be covered with a layer of ash due to the working environment, thereby reducing the reflectivity of the reflective lens and the transmittance of the lens, and ultimately affecting the working power of the laser. At this time, use absorbent cotton dipped in ethanol to carefully rotate along the center of the lens to the edge. The lens should be wiped gently so as not to damage the surface coating; the wiping process should be handled with care to prevent it from falling; please keep the concave side down when installing the focusing lens. In addition, the use of ultra-high-speed perforation should be minimized at ordinary times, and the use of conventional perforation can prolong the service life of the focusing mirror.
3. Transmission system maintenance
During the long-term cutting process of the equipment, smoke and dust will be generated, and the fine dust will enter the equipment through the dust cover, and thus adhere to the rail rack, and the long-term accumulation will increase the wear of the rail rack. Rack guides are relatively precise accessories, and a large amount of dust is deposited on the surfaces of the guides and linear shafts for a long time, which has a great impact on the machining accuracy of the equipment, and will form corrosion spots on the surfaces of the linear shafts of the guides, shortening the service life of the equipment. Therefore, in order to make the equipment work normally and stably and ensure the processing quality of the products, it is necessary to do a good job in the daily maintenance of the guide rails and linear axes, and do regular dust removal and cleaning. After cleaning the dust, grease the rack and lubricate the rail with lubricating oil. Each bearing should also be filled with oil regularly, so as to maintain flexible driving, accurate processing and prolong the service life of the machine tool.
The equipment should be kept away from electrical equipment sensitive to electromagnetic interference to prevent the equipment from being subjected to electromagnetic interference for a long time. Keep away from the sudden high-power interference of high-power and strong-vibrating equipment. Large-power interference may sometimes cause the machine to malfunction. Although it is rare, it should be avoided as much as possible. Therefore, such as large electric welding machines, giant electric mixers and large power transmission and transformation equipment should be kept away. It goes without saying that strong vibration equipment, such as forging presses, vibrations caused by the walking of motor vehicles at close range, etc., the obvious shaking of the ground is very unfavorable for precise engraving.
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