Although both adopt the numerical control system, the working principle of the two is different, and the mechanical structure is also different. In comparison, the structure of the CNC engraving machine is relatively simple. Through the control of the computer numerical control system, the engraving machine can automatically select the appropriate engraving tool to engrave on the X, Y, and Z axes of the machine tool.
The laser engraving machine is divided into different special machines according to the specific purpose. The structure of the special machines is roughly the same. The laser source emits the laser, and the numerical control system controls the Lexer stepper motor to make the laser head, mirror, lens and other optical components. , Make the focus move on the X, Y, Z axis of the machine tool, thereby ablating the material to engrave.
Laser machine
Computers and Raiser stepper motors are similar in the numerical control system, but the specific size, power, etc. are different. The biggest difference in structure between laser engraving machine and CNC engraving machine is that the cutting tool of laser engraving machine is a complete set of optical components, while the cutting tool of CNC engraving machine is a variety of solid engraving knives. In addition, the two are also different from the external light. .
Double-head laser engraving machine
1: Laser engraving and polishing are completed in one time; CNC is completed in two times.
2: The narrow and delicate parts are like the tail turning of a mouse's eyes (1mm in diameter). The laser beam can be carved and cut smoothly and brightly; however, CNC knives are helpless.
3: The diameter of the laser beam is only 0.01mm, which is 20 times larger than that of the CNC tool, which wastes materials.
4: The laser speed is fast, the laser is 2.5 times the speed of the CNC engraving machine.
5: Laser energy consumption is less than that of CNC engraving machine;
6: The laser is noise-free, pollution-free, and high-efficiency; CNC machines are noisy and pollute the environment.
7: Laser is non-contact processing and does not need to fix the workpiece; CNC is contact processing, and the workpiece must be fixed.
8: Laser can process soft materials, such as cloth, leather, film, etc.; CNC can't process because the workpiece cannot be fixed.
Therefore, the advantages of laser engraving machines are more and more widely used in industries such as advertising signs, organic glass products, clothing processing, leather processing, and product marking.