ABSTRACT
This copper aluminum tube welding process process and the characteristic, the welding process process decomposition will be 6 movements, contains the movement is the translation, according to the copper aluminum tube welding machine's practical work demand, analyzes electric circuit's principle of work, designs the PLC peripheral circuit, based on this, designs the complete control procedure, and carries on the simulation debugging. Through the PLC shaping, the PLC peripheral circuit's design, develops a copper aluminum tube welding machine's control circuit, increased the copper aluminum tube butt welding machine's timing precision, thus realizes the copper pipe and the aluminum tube high grade welding.
Key Words: Copper aluminum tube, welding, PLC control