All-aluminum alloy welded integrated electric self-propelled vehicle frame

The utility model relates to an all-aluminum alloy welding integrated electric self-propelled vehicle frame. The bottom frame comprises two bottom side pipes, the two bottom side pipes are converged into a whole on one side of the head to be welded with a main beam pipe, the middle interval is welded with the bottom of the battery aluminum barrel through a transverse supporting piece, the tail parts are respectively connected with one end of a tail pipe through a hook claw piece structural piece, and the other end of the tail pipe is welded with the side wall of the battery aluminum barrel; the device further comprises a longitudinal supporting pipe, one end of the longitudinal supporting pipe is connected with a first bottom plate arranged at the interval of the two bottom edge pipes, theother end of the longitudinal supporting pipe is connected with a transverse supporting piece arranged on the rear side of the battery aluminum barrel, a bias supporting installation base is transversely arranged between the