Multi-angle operation fatigue test device

The invention relates to a multi-angle operation fatigue test device. Comprising a fixing frame (1), a servo actuator cylinder (2), an actuator cylinder fixing seat (3), a rotating single lug (4), a rotating device (5), a rotating device fixing seat (6) and an angle sensor assembly. The fixed frame (1) is of a frame type structure, the actuator cylinder fixing seat (3) is fixed to the top end of the interior of the fixed frame (1), the upper end of the servo actuator cylinder (2) is rotationally connected with the actuator cylinder fixing seat (3), and the stretching/retracting end of the lower end of the servo actuator cylinder (2) is connected with the rotating single lug (4). One end of the rotating device (5) is rotationally connected with the rotating single lug (4), the other end of the rotating device (5) is rotationally connected with the rotating device fixing seat (6), and the rotating device fixing seat (6) is fixed at the bottom end in the fixing frame (1); the angle sensor assembly is arranged on