Servo type cement screw pull-out testing machine

The utility model relates to the technical field of testing, and provides a servo type cement screw pull-out testing machine which comprises a testing machine main body, a working table is fixedly arranged above the testing machine main body, a lifting frame, a fixed table and a control box are fixedly connected above the working table, a clamping block is movably arranged above the fixed table, and the clamping block is fixedly connected with the working table. The inner side of the clamping block is provided with a fixing thread groove, the inner side of the lifting frame is provided with a lifting groove, a lifting device is arranged above the lifting frame, the lower portion of the lifting device is connected with a lifting rod, the lower portion of the lifting rod is connected with a dynamometer, and the two sides of the dynamometer are fixedly connected with lifting rods. A telescopic connecting rod is arranged below the dynamometer, a fixed clamping device is fixedly connected below the telescopic conn