The laser cutting machine focuses the laser light emitted from the laser into a high power density laser beam. The laser beam irradiates the surface of the workpiece, causing the workpiece to reach the melting point or boiling point, and at the same time, the high-pressure gas coaxial with the beam will melt or vaporize. As the relative position of the beam and the workpiece moves, the material will eventually form a slit, thereby achieving the purpose of cutting.
The laser cutting machine uses laser marking to accurately locate the boundary and determine the location of the material. The laser moves together with the cutting laser head and monitors the movement trajectory to ensure the accuracy and precision of the cutting process. Compared with other thermal cutting methods, laser cutting provides fast cutting speed and high quality. So, how to accurately position the laser cutting machine?
The positioning methods of laser cutting machines include ranging positioning, grating ruler positioning, visual positioning and manual positioning. Laser ranging and positioning uses equipment such as a laser rangefinder to emit a laser beam and receive the reflected signal. Based on the time difference principle, it calculates the distance between the workpiece and the equipment and determines the position of the workpiece in combination with other information; grating ruler positioning is Install a linear grating ruler on the cutting machine, and obtain the position of the cutting head relative to the workbench coordinate system by reading the encoded signal on the grating ruler; visual positioning is to obtain the image of the workpiece surface through a camera or sensor, and use image processing algorithms to identify the target object Characteristics to determine the position and attitude of the workpiece; manual positioning is achieved by the operator manually adjusting the position of the cutting head or workbench.
