Automatic welding method for supporting plate component in bogie of railway vehicle

The invention provides an automatic welding method for a supporting plate component in a bogie of a railway vehicle, and relates to automatic welding technology for the railway vehicle. According to the automatic welding method, first corner angles and second corner angles of rib plates are machined into circular angles, each rib plate with the machined circular angles is provided with an arc-starting straight section, a first corner section, a second corner section, an end-sealed straight section, a third corner section, a fourth corner section and an arc-ending straight section, the arc-starting straight sections, the first corner sections, the second corner sections, the end-sealed straight sections, the third corner sections, the fourth corner sections and the arc-ending straight sections of the rib plates are welded by a mechanical arm, and accordingly continuous and full-automatic welding of the rib plates is realized. The automatic welding method for the supporting plate component in the bogie of the r