Lower guide arm support welding device for public bus frame

The lower guide arm support welding device for the public bus frame comprises a platform and a round hole, a stand column is installed at the lower end of the platform, a guide arm block and a cushion block are sequentially arranged at the upper end of the platform from the middle to the front side and the rear side, the round hole is formed in the cushion block, a quick clamp is arranged at the upper end of the cushion block, and the quick clamp is connected with the stand column. A bolt is installed on one side of the quick clamp, and a first workpiece, a second workpiece, a third workpiece and a fourth workpiece are installed on the guide arm block. Compared with an existing common lower guide arm support welding device, the lower guide arm support welding device for the public bus frame has the advantages that all parts are finely machined through mechanical equipment, the size accuracy of all the parts is guaranteed, the lower guide arm support welding device is easy and convenient to operate and small i