Auxiliary tool for assembling copper pipe bus of power distribution cabinet

The utility model relates to a power distribution cabinet copper pipe bus assembly auxiliary tool which comprises a mounting plate, a first positioning rod and two second positioning rods, the first positioning rod and the second positioning rods are arranged in a spaced mode, the second positioning rods are located on the same horizontal plane, and the first positioning rod is located on one side of a plane formed by the two second positioning rods. The first positioning rod comprises a mounting rod, an auxiliary ring and a first backing ring, the mounting rod is perpendicular to the mounting plate, the auxiliary ring and the second backing ring are arranged on the outer side of the mounting rod in a sleeving mode, the auxiliary ring and the first backing ring are coaxial, and the first backing ring is located on the inner side of the auxiliary ring; one end of the mounting rod is connected with the mounting plate, and the other end extends out of the auxiliary ring; the auxiliary ring is used for being matc