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Laser Cutting Machine Positioning Method
Jul 06, 2017

  Laser cutting machine positioning method:

  1, CNC positioning RBI method: with a smooth and clean white cardboard, tiled on the table above the laser cutting head set in its top, Laser cutting machine focusing lens from the height of the focus than the focal length of the focal length of the lens 10mm position, such as When the focal length of the focusing lens is 127 mm, the focusing lens is set at approximately 117 mm from the cardboard. CNC system set the cutting head along the x-axis or y-axis movement every 10mm, each time while moving z axis up 1mm, you can set the distance of 20 consecutive moves. Each time in place, with a laser to send a 200W pulse laser, in the cardboard to play a hole. Move 20 times a total of 20 holes, z axis height increased by 20mm. Observation of the 20 holes, you can find the diameter of the hole is from large to small, and then from small to large gradually change. Find the location of the smallest hole diameter is the focus of the location, Laser cutting machine this record. The measured distance in this position is the distance between the cardboard and the lens is the actual laser beam focal position.

  2, the slope of the focus of burning method: the straight board will be slant on the table above the slope of about 10 degrees. The cutting head set at point A, A point from the focus mirror height size than the focusing lens focal length of the small size of 20mm, Laser cutting machine CNC system set cutting head along the x-axis or y-axis continuous horizontal movement 230mm, the beginning of the movement of the laser output 200W Continuous laser, cutting head stops moving while the laser stops. This is the gram to see the wood has a slender narrow, but also narrow from the narrow laser beam burning traces. Take the trace at the narrowest point for the focus position, record this point, measuring the distance in the wood from this position is the actual focus of the laser beam position.

  3, direct burning method: holding a piece of wood straight wood, stand in the cutting table 85 degrees angle, the cutting head to the focusing lens from the table surface about 1.5 times the focal length of the position, open the laser shutter, Laser cutting machine continuous output 200W laser Beam, the level of rapid movement to the wood below the focusing lens, you can see the surface of the wood has a wide narrow, and narrow from the narrow laser beam before and after the burning traces of the traces of the laser beam focusing process is very close The Take the trail at the narrowest point for the focus position, record this point, measuring the distance from the lens in this position is the actual focus of the laser beam position, because this method requires manual operation, so in particular the need to pay attention to safety, so as not to cause the body hurt.


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