Welding positioning device

The utility model provides a welding positioning device. The welding positioning device comprises an air inlet assembly and an air outlet assembly. The air inlet assembly is rotationally connected with the air outlet assembly; a sensor connector is arranged on the air outlet assembly; a positioning assembly is arranged in the sensor connector. The welding positioning device provided by the utilitymodel not only can detect the coaxiality requirement of the welding of the joint and the carrier assembly in the previous process, but also can identify the operation requirement of positioning the joint with a specific size and specification; the welding positioning device can detect whether the welding coaxiality of the sensor joint and the carrier assembly in the previous process meets the requirement or not; the welding positioning device can recognize the connectors of the specific specifications in the process for positioning, and accurate assembly is completed; a worker does not need to screen the positioning