Adjustable positioning device for die machining

The utility model belongs to the technical field of die machining, and particularly relates to an adjustable positioning device for die machining, which comprises a workbench, two rotating holes are formed in the workbench, a rotating shaft is rotatably mounted in the rotating holes, two mounting blocks are mounted on the rotating shaft in a threaded manner, four through holes are formed in the top of the workbench, and the rotating shaft is rotatably mounted in the through holes. The tops of the mounting blocks penetrate through the corresponding through holes and are connected with the innerwalls of the corresponding through holes in a sliding mode, two clamping plates are mounted at the top of the workbench in a sliding mode and fixedly connected with the two corresponding mounting blocks, a cavity is formed in the workbench, and the two rotating holes are both communicated with the cavity; and one ends of the two rotating shafts extend into the cavity. The fixing device is reasonable in design, easy to op