(1) When the light spot of the focus laser is adjusted to the minimum, spot shooting is carried out to establish the initial effect, and the focal length position is judged by the size of the spot effect. As long as we recognize that the light spot of the laser is at the minimum, then this position is the best processing focal length, and then start the processing work. Fiber laser cutting machine
(2) In the first part of the debugging of the laser cutting machine, we can use some adjustment paper and workpiece waste to determine the accuracy of the focal length position. Move the position of the height of the upper and lower laser heads, and the size of the laser spot will change differently during the laser spot shooting. Adjust different positions for many times to find the smallest light spot position to determine the focal length and the best position of the laser head.
(3) After the installation of the fiber laser cutting machine, a scoring device will be installed on the cutting nozzle of the NC cutting machine, and a simulated cutting pattern will be drawn through the scoring device, which is a 1m square. A circle with a diameter of 1m is built in, and the four corners are diagonally marked. After drawing, use a measuring tool to measure whether the drawn circle is tangent to the four sides of the square. Whether the length of the diagonal of the square is √ 2 (the data obtained by the open root sign is about 1.41M), the central axis of the circle should bisect the sides of the square, and the distance from the intersection point of the central axis and the two sides of the square to the intersection point of both sides of the square should be 0.5m. The cutting accuracy of the equipment can be judged by testing the distance between the diagonal and the intersection. This is a real experience!