Curvature detection machine convenient to fix

The utility model discloses a bending degree detection machine convenient to fix. Comprising a bottom plate, supporting legs, an electric control box, a servo motor, a workbench, a mounting frame, a guide rack, a lifting plate, a mounting block, a hydraulic cylinder, a displayer, a pressure sensor, a movable clamping block, a fixed clamping block, a guide groove, a longitudinal guide groove, a movable sliding block, a threaded moving block, a threaded guide rod, a T-shaped guide groove, a motor, a driving gear, a meshing gear and a rotary guide screw rod. The end of an output shaft of a servo motor is fixedly connected with the end of a rotary guide screw rod, the tooth surface of the rotary guide screw rod is connected with the tooth surface of a guide rack in a meshed mode, the top surface of the guide rack is fixedly connected with the bottom surface of a movable clamping block, and when the servo motor is started, the movable clamping block moves on the top surface of the workbench; the base of the fixed