Fiber laser cutting machine with its irreplaceable processing advantages, has been the trust of many metal processing enterprises. However, the efficiency of the fiber laser cutting machine is certainly very high but after a period of time, the cutting accuracy will be more or less a certain error, the processed product may not reach the expected cutting effect, this error is often caused by the change of focal length. Therefore, to master how to debug the accuracy is the necessary knowledge to operate the laser cutting machine, the following small make-up to take you to understand the fiber laser cutting machine precision debugging methods:

How to debug the precision of fiber laser cutting machine over time?

　　First: the focus of the laser's point of light is tuned to the smallest possible time, the spot shooting to establish the initial effect, through the size of the spot effect to determine the focal length bit, we just need to recognize the laser's point of light to the smallest possible time, then this position is the best processing focal length, and then start processing work.

　　Second: in the laser cutting machine debugging before the part, we can use some debugging paper, workpiece waste to shoot to determine the accuracy of the focal length position, move up and down the height of the laser head position, the laser spot size when shooting will have different size changes. Repeatedly for different positions of the adjustment, to find the smallest one spot position to determine the focal length and the best position of the laser head.

　　Third: fiber laser cutting machine in the installation is completed, will be installed in the CNC cutting machine cutting nozzle on a scribing device, through the scribing device to draw a simulation of the cutting graphics, simulation of the graphics for the 1m square. Built-in a circle with a diameter of 1m, the corners of the diagonal lines were drawn, after drawing, using measuring tools to measure the circle drawn is not tangent to the four sides of the square. Diagonal length of the square is √2, the central axis of the circle should be equally divided by the sides of the square, and the central axis and the intersection of the two sides of the square to the intersection of the two sides of the square should be 0.5 m. Test the distance between the diagonal and the intersection point, you can judge the cutting accuracy of the equipment.　　

The above is our experience summed up in the actual cutting process of fiber laser cutting machine, the operator can follow the above method of practical operation to verify.