Universal ring spot drilling machine

The universal ring spot drilling machine comprises a base, an inlaying table and a mechanical arm, the inlaying table and the mechanical arm are fixedly installed on the base, the inlaying table is provided with a bottom plate and a first support, the first support is fixedly installed on the bottom plate, and the second support is fixedly installed on the base. The first support is provided with a first rotating disc, a second rotating disc, a rotating shaft, a mounting seat, a mounting shaft and a ring bracket, the first rotating disc is fixedly connected with the rotating shaft, the second rotating disc is fixedly connected with the rotating shaft, the mounting seat is fixedly mounted on the second rotating disc, and the mounting seat is movably connected with the ring bracket through the mounting shaft; the ring bracket can rotate along the mounting shaft, the first rotary table can rotate at a pitch angle, the second rotary table can rotate at a course angle, the ring bracket can rotate at a roll angle,