Positioning machining device based on aerospace graphite fire blocking cover molded surface

The utility model provides a positioning machining device based on an aerospace graphite fire blocking cover molded surface. A first fastening screw hole, a second fastening screw hole and a third fastening screw hole are formed in a clamp body of the machining device in a penetrating mode. The first fastening screw hole, the second fastening screw hole and the third fastening screw hole are parallel to one another and are arranged in sequence; a protrusion is arranged on one side of the upper portion of the clamp body, an eccentric wheel is installed on the other side of the upper portion ofthe clamp body, a to-be-machined fire blocking cover is placed between the protrusion and the eccentric wheel and fixed to the first fastening screw hole and the second fastening screw hole, the eccentric wheel is fixed to the third fastening screw hole, and the handle is fixedly connected with the eccentric wheel. The positioning machining device based on the astronavigation graphite fire blocking cover profile solves th