Solution
Position Method of Laser Cutting Machine
Laser cutting machine positioning method:
Pico Laser Cutting Machine JG32
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, focusing lens from the height of the focus than the focal length of the focal length of the lens 10mm position. 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 the movement is in place, a 200W pulse laser is used to emit a hole in the cardboard. Move 20 times a total of 20 holes, z axis height increased by 20mm. Observe 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, this record. The distance measured 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 is set at point A, point A is closer to the height of the focusing lens than the focal length of the focusing lens. The CNC system sets the cutting head to move continuously 230mm along the x-axis or y-axis, and 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 from the lens in this position is the actual focus of the laser beam position.
3, Direct burning method: holding a piece of wood straight board, 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, continuous output 200W laser Beam, the level of rapid movement to the wood to the focus lens below, you can see the surface of the wood has a wide narrow, and narrow from the narrow laser beam before and after the burning of the 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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