Universal rotary drilling device

The utility model relates to the technical field of machines, in particular to a universal rotary drilling device. The universal rotary drilling device is composed of a drilling jig size plate, a positioning threaded rod, a nut and a hexagon socket screw and is characterized in that the positioning threaded rod is arranged on the drilling jig size plate, the hexagon socket screw is arranged on one side of the drill jig size plate, the drill jig size plate can be fixed to a workpiece through the positioning threaded rod, and the center distance of the positioning threaded rod can be adjusted through a long groove hole in the drill jig size plate. When the universal rotary drilling device needs to be used, after a 45-degree angle line of a pin hole and an oil groove is drawn on the workpiece, the positioning threaded rod is screwed onto the workpiece, the drilling jig size plate is well put, the hexagon socket screw is used for adjusting sizes well, the nut is used for screwing and fixing the drilling jig size