Adjusting type welding supporting device for welding

The utility model provides an adjustable welding support device for welding, which comprises a support table, a mounting cavity is arranged in the support table, a two-way screw rod is rotatably connected in the mounting cavity through the matching of a bearing and a shaft seat, and the two-way screw rod is arranged along the horizontal direction; threaded adjusting sleeves are sleeved on two threaded sections with different screwing directions of the bidirectional screw rod in a matched manner, and horizontal guide assemblies matched with the threaded adjusting sleeves are arranged in the mounting cavity. Vertical plates are arranged at the upper ends of the threaded adjusting sleeves, strip-shaped holes matched with the vertical plates are formed in the top of the supporting table in the horizontal direction, and the vertical plates movably penetrate through the strip-shaped holes in the vertical direction; rotating shafts are rotationally connected to the vertical plates through bearings, and clamping asse