Device for detecting cylindricity of threaded sleeve

The device comprises a bottom plate, a first rotating shaft is rotatably connected to the surface of the bottom plate, a rotating disc is fixedly connected to the top of the first rotating shaft, a mounting groove is formed in the surface of the rotating disc, a two-way screw is rotatably connected to the interior of the mounting groove, and a second rotating shaft is fixedly connected to the top of the two-way screw. Two moving blocks are connected to the outer portion of the two-way screw in a sleeving and threaded mode, and the outer surfaces of the two moving blocks are in sliding connection with the inner side wall of the mounting groove. According to the utility model, through the arrangement of the bidirectional screw, the electric motor, the clamping plate, the chutes and other structures, when a detected thread sleeve is fixed, the thread sleeve can be quickly fixed only by installing the thread sleeve between the chutes and driving the clamping plate to move through the rotation of the bidirectional