Welding auxiliary device and stand column machining tool comprising same

The utility model provides a welding auxiliary device and a stand column machining tool comprising the same, and belongs to the technical field of stand column machining, a tool base is connected with a plurality of transverse rods used for placing stand columns, the transverse rods are fixedly connected with fixing blocks and pressing devices, the transverse rods are further fixedly connected with positioning devices, and the positioning devices are fixedly connected with the tool base. The stand column is fixed and positioned on the transverse rod, so that displacement of the stand column in the machining process is prevented, the welding auxiliary device is arranged in a pipe cavity of the stand column in a penetrating mode, the welding auxiliary device comprises a strong magnetic sheet, fixing and positioning work of the threading separation blade can be achieved, and welding work between the threading separation blade and the stand column is conveniently completed. The device is easy to operate, reasonab