For users who have purchased laser cutting machines, the maintenance of laser cutting machines is also a matter of concern. Since the price of a laser cutting machine can range from hundreds of thousands to millions, which is really valuable, a good use of a laser cutting machine can achieve twice the result with half the effort, and a good maintenance of a laser cutting machine can greatly extend the service life of the equipment and save the use cost of users.
How to maintain the laser cutting machine cover? Today, Xiao Bian brought another piece of dry goods to help us understand the maintenance secrets of the laser cutting machine with full sincerity, so that it is no longer difficult to extend its life:
Admittedly, although high-quality after-sales service can provide some basic guarantees, regular and comprehensive maintenance is the most important thing to really extend the service life of the laser cutting machine, so as to achieve a real sense of “low investment, high return.”
When using metal laser cutting machine for processing, in order to achieve the ideal cutting speed and cutting effect, we need to learn the use and maintenance skills of metal laser cutting machine, so as to better play the role of the equipment and improve the working efficiency of the equipment.
1、 Be sure to check the light path before work to see if it is normal
The optical path system of the machine is completed by the reflection of the reflector and the focusing of the focusing mirror. Although the focusing mirror will not shift in the optical path under normal circumstances, it is recommended that the user must check whether the optical path is normal before each operation. Check the lubrication of X axis guide rail and lead screw, Y axis guide rail and lead screw, Z axis guide rail and lead screw every other week, maintain the lubrication of all moving parts, and extend the service life of X, Y, Z axis guide rail and lead screw.
The equipment operator can also often check the laser output spot with black image paper. Once the laser spot is uneven or the energy drops, the resonator of the laser should be adjusted in time to ensure the beam quality of the laser output.
2、 Clean the components regularly
The metal laser cutting machine often produces a lot of dust inside and outside when cutting. In order to ensure that the laser is always in a normal working state, after two weeks of continuous operation or when it is not used for a period of time, the components in the optical path such as the laser lens should be checked before starting up to ensure that each optical component is free of dust pollution, mildew and other abnormal phenomena. In case of the above abnormal phenomena, it should be cleaned and cleaned in a timely manner, To ensure that all optical components will not be damaged under strong laser irradiation. We should use a vacuum cleaner to remove the dust and dirt in the machine every week to ensure the operation accuracy of the machine. (If the equipment is used in a clean environment, the above inspection can be extended to one month or even longer)
3、 Fastening and lubrication of screws and couplings
The steel belt is made of steel. If the equipment is not tensioned during operation, it will easily cause the cut objects to be thrown out of the track, posing potential safety hazards to the equipment and operators. Therefore, the steel belt should be checked frequently to avoid foreign matters or looseness.
After the movement system works for a period of time, the screws and couplings at the movement joints will become loose, which will affect the stability of the mechanical movement. During the operation of the machine, always observe whether the transmission parts have abnormal noise or abnormal phenomena, and use tools to tighten the screws one by one at intervals. The first fastening shall be about one month after the equipment is used.
Since the cutting machine is particularly sensitive to vibration, its working environment should be far away from the places with vibration sources such as punch press and heavy object handling. Anti vibration pads can be installed to avoid the impact of the environment on the machine. In addition, there are several synchronous belts in the drive system of the laser cutting machine. If the synchronous belt is too loose, the engraved characters will be ghosted. If the synchronous belt is too tight, the synchronous belt will be worn. After a period of use, the tensioning screw of the timing belt should be properly adjusted until the engraved text does not appear ghosting.
During the use of metal laser cutting machine, the angle of cutting head shall be adjusted in time when cutting different materials to ensure that there is no deviation in the cutting head, thus affecting the qualified rate of cutting samples and increasing production costs.
In addition to tightening the adjusting screws, it is also necessary to regularly oil some bearings of the laser cutting machine. Wipe off the soil on the bearing with a clean soft cloth, suck the oil into the needle tube with a needle tube, then slowly inject the bearing with a needle, and slowly rotate the bearing during oil injection. Except for oil bearing, guide rail, rack and other cutting machine parts need to be lubricated frequently to ensure flexible operation between parts.
4、 Heat protection and heat removal
The increase of temperature will reduce the insulation performance of equipment and the parameters of components. It is generally stipulated that the working environment of the cutting machine shall not exceed 40 ℃, and 20~25 ℃ is the most appropriate.
5、 Precautions during daily maintenance
1. The installation fulcrum of the laser tube of the laser cutting machine should be reasonable, and the fulcrum should be at a quarter of the total length of the laser tube, otherwise, the laser spot mode of the laser tube will deteriorate, resulting in the decline of the laser power unable to meet the requirements;
2. The air suction device shall be checked and cleaned on schedule, and the air duct of the fan shall be cleaned, otherwise the dust will quickly pollute the lens and laser tube, which will easily oxidize all mechanical and electronic components, resulting in poor contact;
3. The power of power grid shall match the equipment itself;
4. The working current of the laser tube should be reasonable, and it can not work at full power for a long time. The power of the laser equipment should be adjusted to 50% – 60% of the total power when working. The laser should be used reasonably and the laser energy should be saved. The optical system should also be cleaned regularly, otherwise it will cause premature aging and cracking of the laser tube;
5. The dirt and dust on the machine body, cutting head, sensor and other parts shall be removed in time to keep the machine appearance clean;
6. Combustibles (such as gloves and rags) in the machine tool shall be cleaned in time to prevent fire during cutting;
7. The iron slag on the hopper waste truck shall be cleaned in time to ensure that the cutting waste can fall down smoothly;
8. Before the machine is jammed every day, carefully check whether the pressure of the working gas and the pressure reducing valve work normally to avoid insufficient air pressure, which will affect the quality of the cutting section;
9. Before use, check the connection of each gas pipe of the cutting head to determine whether the cooling water leaks, so as to ensure the normal supply of gas and cooling water;
10. During commissioning, a piece of ferrous metal material with good absorption performance shall be placed on the laser output optical path as the beam terminator to prevent fire accidents.
Only by correctly mastering the skills of these five ways to maintain the laser cutting machine, can the laser cutting machine have a longer life, so as to truly achieve low cost and high return.