Polishing machine for machining three-way connecting pipe

The utility model discloses a three-way connecting pipe machining polisher which comprises a polisher body, the output end of the polisher body is connected with a belt wheel, the surface of the belt wheel is connected with a polishing belt, and the surface of one side of the polisher body is connected with a fixing plate through a bolt. The end, away from the polishing machine body, of the fixing plate is movably connected with a connecting screw pipe, and the inner wall of the connecting screw pipe is in threaded connection with a connecting screw rod. By installing the fixing plate, the connecting pipe and the fixing pipe, three-way pipes with different hole diameters can be fixedly polished, the connecting screw rod is connected with the connecting pipe bearing, a rotating condition is provided for rotating and polishing of the three-way pipes, and the distance between the connecting plate and the fixing pipe can be adjusted through rotation of the adjusting screw rod; three-way pipes with different hole