Machining and positioning tool for aluminum alloy fan blade

The utility model discloses an aluminum alloy fan blade machining and positioning tool, which belongs to the technical field of machining and positioning tools and comprises an L-shaped positioning plate, the L-shaped positioning plate consists of a vertical plate and a transverse plate, the transverse plate is fixedly connected to the lower end of the front surface of the vertical plate, and a blade profile positioning groove is formed in the end, far away from the vertical plate, of the transverse plate. A positioning block is arranged on the upper portion of the front face of the vertical plate, a blade root positioning groove is formed in the end, away from the vertical plate, of the positioning block, a drill bit positioning plate is arranged above the vertical plate, and a drill bit positioning hole is formed in the drill bit positioning plate. A rectangular groove is formed in the front face of the vertical plate, a fixing rod is installed in the rectangular groove, and one end of the fixing rod is con