How to adjust the accuracy of laser cutting machine
Laser cutting machine is a laser emitted from the laser, through the optical circuit system, focusing into a high power density laser beam. The laser beam hits the surface of the work piece, allowing it to reach a melting or boiling point, while the high-pressure gas coaxial to the beam blows away the molten or vaporized metal. Accuracy is very important for laser cutters, so it is important that the operator is familiar with the accuracy adjustment method of the cutter. The specific method is as follows:
1. When the spot focusing on the laser is adjusted very small, the initial effect is determined by spot sampling, and the focal length is determined by the size of the spot effect. We just need to find a small laser point and then this position is better. The focal length is being processed to begin processing. > 2. In order to debug in front of the cutting machine, we can use some commissioning paper and work piece scrap points to determine the accuracy of the focal length position of the laser cutting machine, and move the height position of the upper and lower laser head. When shooting laser points, the dimensions will vary. Adjust the position multiple times to find the smaller spot position to determine the focal length and correct position of the laser head. >
3. After installing the laser cutter, install the dashing device on the cutting nozzle of the cutting machine. The dashing device draws a 1-meter square analog cutting pattern. A circle with a diameter of 1 meter is built in and four corners are drawn to the corners. After the stroke is complete, measure with a gaug. Whether the circle is cut to the four edges of the square, whether the verse length of the square is √2 (the data obtained by Kaigen is about 1.41 meters), and the center axis of the circle should be divided equally into the edges and center points of the square. The distance between the axis and the intersection on both sides of the square to the intersection on both sides of the square should be 0.5m. By testing the distance between the verse and the intersection, the cutting accuracy of the equipment can be judged. >
Therefore, it is necessary to do detailed inspection work and adjust the accuracy of the laser cutter after installation or before each start-up, which not only ensures that the next step of the cutting machine equipment is more stable and accurate, but also can effectively reduce the occurrence of equipment failure.
