Introduction to some conventional operations of CNC laser cutting machine during use

by:Caodahai     2021-09-05
CNC laser cutting machine has been used in my country's machining industry for a long time. With the development of my country's laser technology, my country's laser cutting machine industry has achieved rapid development, and it has made amazing breakthroughs in sheet metal cutting technology. . The applications of CNC laser cutting machines in large-scale machinery manufacturing, automobile manufacturing, shipbuilding and other industries have all entered industrialized batch processing. In order to ensure the maximum material utilization rate and the cutting effect, the operator must first set the laser cutting machine. Focus position selection, how to determine the focus position of CNC laser cutting machine? Let me share some experience with you; 1. Printing method: Make the cutting head move from top to bottom, and perform laser beam printing on the plastic plate, with the smallest printing diameter as the focus.  2. Inclined plate method: Use a plastic plate placed obliquely at an angle to the vertical axis to pull it horizontally to find the smallest point of the laser beam as the focus.  3. Blue spark method: remove the nozzle, blow air, hit the pulse laser on the stainless steel plate, make the cutting head move from top to bottom, until the largest blue spark is the focus. In special circumstances, for a laser cutting machine with a flying light path, the focal spot will change as the length of the proximal and distal ends of the cutting at the speed of light, and the diameter of the incident beam changes. In order to reduce this situation, Wuhan High Energy provides two There are two solutions for users to choose; 1. Collimator, this is a commonly used method, that is, add a collimator at the output end of the CO2 laser for beam expansion processing, the beam diameter after beam expansion becomes larger, and the divergence angle changes Small, making the beam size close to the same before focusing at the near end and the far end in the cutting working range.  2. Add an independent lower axis of the moving lens to the cutting head, which is two independent parts from the Z axis that controls the distance between the nozzle and the surface of the material (standoff). When the machine tool table moves or the optical axis moves, the beam moves from the proximal end to the distal F axis at the same time, so that the beam spot diameter remains the same in the entire processing area after the beam is focused. The above is the most routine test operation before the CNC laser cutting machine is used. In order to ensure higher efficiency and the loss of the plate, it is very necessary to make a good selection of the focus position of the CNC laser cutting machine. For more information about laser cutting machines, please follow http://www.gnlaser.com/
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