Pipeline all-position automatic welding device and using method thereof

The invention relates to the technical field of welding devices, in particular to a pipeline all-position automatic welding device which comprises a bottom plate, two symmetrical mounting frames are fixedly arranged on the upper surface of the bottom plate, and placing pipes used for placing a pipeline body are rotationally arranged at the top ends of the two mounting frames. A positioning assembly used for positioning the pipeline body is arranged in the containing pipe. A mounting rod is arranged on the upper surface of the bottom plate, and a welding gun used for welding the joint of the two pipeline bodies is arranged at the top end of the mounting rod. The side faces of the two mounting frames are each provided with a driving assembly used for driving the two containing pipes to rotate at the same time. According to the pipeline welding device, by arranging the positioning assembly and the driving assembly, when the pipeline welding device is used for welding a pipeline, the welding gun can automatically