Mechanical machining welding equipment for welding and positioning metal pipeline

The invention discloses mechanical machining welding equipment for metal pipeline welding positioning, and relates to the technical field of pipeline welding assistance. The welding equipment comprises a storage plate and further comprises a positioning device, a welding structure is fixedly mounted above the storage plate, and a metal pipeline body is fixedly mounted in a fixing device; wherein the positioning device comprises a mounting plate, a sliding rail and a sliding plate, the sliding plate is moved, the sliding plate slides on the surface of the sliding rail and is limited by the sliding rail at the same time, the positioning effect is achieved, the mounting plate is fixedly mounted above the storage plate, and the sliding rail is fixedly mounted above the storage plate; the sliding plate is installed on the surface of the sliding rail in a sliding mode, the sliding plate makes contact with the limiting block in a moving mode and extrudes the limiting block to move downwards, the limiting block reset