Flange fixing tool for optical device with tail fiber type single receiving and transmitting end

The utility model relates to the technical field of optical device production, and provides a fixing flange tool for a tail fiber type single receiving and transmitting end optical device, the tail fiber type single receiving and transmitting end optical device comprises a receiving and transmitting end, a tail fiber and an optical fiber connector which are connected in sequence, and the fixing flange tool comprises a tool body, a plurality of installation positions are arranged on the top face of the tool body in the transverse direction and the longitudinal direction. The installation position comprises a fixing groove and a stepped hole, the fixing groove is used for containing and limiting the flange, the stepped hole is used for containing and limiting the receiving and transmitting end, the flange and the single receiving and transmitting end optical device with the tail fiber can be assembled in batches, and the assembling efficiency can be improved easily, and during use, the single receiving and tran