Copper aluminum pipe butt welding machine

The utility model provides a novel copper aluminum tube butt welding machine, which is mainly and technically characterized in that a welding coil is connected with a thyristor, the thyristor is connected with a triggering circuit board, and the triggering circuit board is connected with a current setting meter and a PLC programmable controller. The utility model introduces the programmable controller (PLC) to perform the program logic control in the control ling circuit of the machine, and the self-protection function and the control function through analyzing. The utility model has the advantages that the automation degree is high, the operation is simple; various movement control is accurate, the control precision is high, and the control precision of the welding time parameter reaches 0.01s; therefore, the timing precision and the operation reliability of the copper aluminum tube to the butt welding machine is greatly enhanced, and when the welding material specification is replaced, the former reliable w