Experiment clamp used in thermal fatigue experiment

The utility model relates to an experiment clamp used in thermal fatigue experiment; one end of a supporting rod is fixedly connected with a supporting seat; a lower clamping plate is arranged on the upper end surface of the supporting seat; the lower clamping plate is fixed on the supporting seat through two supporting posts symmetrical to each other; a spring, an upper clamping plate and a fixed plate are sheathed on the two supporting posts in sequence; the top ends of the two supporting posts are in threaded connection with nuts; a screw through hole is formed at the central position of the fixed plate; a tightening bolt is arranged inside the screw through hole; and a force sensor is arranged at the lower end of the tightening bolt. The experiment clamp has the following beneficial effects: compared with the traditional experiment clamp used in thermal fatigue experiment, the structure and performance of the clamp are greatly improved so as to realize the structure and size requirements of the clamp in t