Convenient machining device for slender pipe

The utility model relates to the technical field of machining devices, in particular to a long and thin pipe convenient machining device which comprises a machine tool body, one side of the interior of the machine tool body is rotationally connected with a first rotating chuck, one side of the first rotating chuck is provided with a threaded groove, and the interior of the threaded groove is in threaded connection with a stud. A plug is fixedly connected to one end of the stud, a moving groove is formed in the inner side of the machine tool body, the machine tool body is slidably connected with a moving seat through the moving groove formed in the inner side of the machine tool body, and a supporting ring is fixedly connected to one side of the moving seat. The utility model has the advantages that: as the inside of the slender pipe is supported by the plug, the end part of the slender pipe is not deformed by clamping, so that the device is suitable for processing the slender pipe, and in the rotating process