The fully automatic flange welding light door cutting all-in-one machine produced by Tewei adopts Japanese FANUC welding robot, or domestic robot and Megmeet welding power supply.The lamp door is cut using the Shanghai Jiao Tong University intersecting line CNC system and the American Hypertherm plasma power supply.It can realize welding from the inside and outside of the flange, automatic assembly and welding of reinforced ribs, cutting of light doors, etc., all at once, reducing the secondary transfer process of rods and making the operation simple and convenient.