The plasma cutting machine frame adopts the all-welded structure, and the internal vibration is eliminated by the effective vibration processor, so that the stability of the frame is improved and the amount of denaturation is small. The X-axis adopts a high-precision linear circular guide, and the Y-axis adopts a high-precision linear guide. The running resistance is small. The X-axis and the ý-axis are installed with the multi-function instrument for detection and installation. The straightness error of the X-axis and the two tracks is less than ±0.05 mm, and the vertical error of the X-axis and the ý-axis is not more than ±0.05 mm. The car has a lightweight structure that is easy to guarantee the quality of plasma cutting. The industrial computer operating system is operated in a stable DOS system with a good man-machine dialogue interface. The Chinese and English languages can be arbitrarily converted. The X-axis and Y-axis can run at a speed of up to 8 m/min. The industrial control computer can interface. The ISO standard CNC language can display cutting graphics, simulate cutting, and has manual programming. Characteristics of the main control system of the plasma cutting machine The drive transmission system adopts the digital AC servo system of Mitsubishi Corporation of Japan. The motor adopts high magnetic rare earth material, and the magnetic conduction heat dissipation type is good, and its encoding has high resolution, which is an ordinary 4 times function, thereby ensuring higher control precision. The cutting software introduces European special wind control chart software, which has a large library, easy to learn, flexible operation and high cutting precision.