How to adjust the accuracy of fiber laser cutting machine after a long time?
August 24, 2021
The fiber laser cutting machine has won the trust of many metal processing companies with its irreplaceable processing advantages. However, the efficiency of the fiber laser cutting machine is very high, but after a period of use, there will be a certain error in the cutting accuracy, and the processed product may not achieve the expected cutting effect. This error is often caused by the change of the focal length. . Therefore, mastering how to adjust the accuracy is the necessary knowledge to operate the laser cutting machine. The following editor will show you how to adjust the accuracy of the fiber laser cutting machine:
One: When the spot of the focus laser is adjusted to the minimum, perform spot shooting to establish the initial effect, and judge the focus position by the size of the spot effect. We only need to look for the laser spot when it is the smallest, then this position is the best Processing the focal length, and then start the processing work.
Two: In the first part of the debugging of the laser cutting machine, we can use some debugging paper and workpiece waste to spot the accuracy of the focal position, move the position of the height of the upper and lower laser heads, the laser spot size will have different size changes when the spot is fired. Make adjustments to different positions several times to find the smallest spot position to determine the focal length and the best position of the laser head.
Three: After the fiber laser cutting machine is installed, a scribing device will be installed on the cutting nozzle of the CNC cutting machine, and a simulated cutting pattern will be drawn through the scribing device, which is a 1m square. A circle with a diameter of 1m is built in, and the four corners are drawn diagonally. After drawing, use a measuring tool to measure whether the drawn circle is tangent to the four sides of the square. Whether the diagonal length of the square is √2, the central axis of the circle should bisect the sides of the square, and the distance from the point where the central axis intersects the two sides of the square to the intersection of the two sides of the square should be 0.5m. Test the distance between the diagonal and the intersection point to determine the cutting accuracy of the equipment.
The above is the experience we have summarized in the actual cutting process of the fiber laser cutting machine. The operator can carry out the practical operation according to the above method and verify it.