Positioning device for petroleum drill rod

The utility model relates to a positioning device for a petroleum drill pipe, which comprises a transportation base, a bracket is fixedly mounted at the top of the transportation base, a control assembly is arranged in the bracket, two control screws are arranged in the control assembly, one end of each control screw penetrates through and extends into the bracket, and the other end of each control screw penetrates through and extends into the transportation base. Adjusting blocks are movably mounted on the outer surfaces of the two control screw rods correspondingly, connecting plates are fixedly connected to the opposite sides of the two adjusting blocks correspondingly, moving grooves are formed in the tops and the bottoms of the two connecting plates correspondingly, and mounting parts are movably mounted on the outer surfaces of the two connecting plates correspondingly; and moving blocks are fixedly mounted on the opposite side walls of the inner cavities of the two mounting pieces. According to the pos