Lathe tool for pipeline valve box

The utility model relates to the technical field of pipeline valves, and discloses a pipeline valve box lathe tool which comprises a base, a supporting block is arranged at the top of the base, a pipeline valve is arranged at the top of the supporting block, and installation boxes are arranged at the positions, located on the front side and the rear side of the supporting block, of the top of the base. An adjusting assembly attached to the pipeline valve is arranged in the mounting box, one end of the adjusting assembly is fixedly connected with the top of the base, and the adjusting assembly comprises a servo motor. According to the pipeline valve box lathe tool, by arranging the adjusting assembly, firstly, a servo motor is started to rotate forwards to drive a two-way threaded rod to rotate forwards, threaded blocks on the left side and the right side move relatively under the limitation of a sliding block, and the distance between clamping blocks on the left side and the right side is reduced through a co