Pipeline internal welding machine placing device

The pipeline internal welding machine placing device comprises a base and two pairs of supporting parts fixed to the base, each pair of supporting parts is used for supporting a pair of walking wheels of an internal welding machine, in each pair of supporting parts, the two supporting parts are arranged in the first direction, the first direction is perpendicular to the axis of the internal welding machine, and the two supporting parts are arranged in the second direction. A containing gap used for containing the internal welding machine is formed between the two supporting parts, and the two supporting parts are matched to conduct circumferential limiting on the internal welding machine. The four supporting parts correspond to the four walking wheels of the internal welding machine, when the internal welding machine is placed, the walking wheels are all arranged in the supporting parts, movement of the four walking wheels in the circumferential direction of the internal welding machine is limited, the intern