Centering calibration device for high strain detection

The utility model relates to a centering calibration device for high strain detection, which comprises four upright posts, a fixing plate is arranged at the top of each upright post, an opening is arranged at the center of each fixing plate, the size of the opening of each fixing plate corresponds to the size of a counter weight, the distance between each upright post and the center of each fixing plate is the same, and the distance between each upright post and the center of each fixing plate is the same. A positioning rope is arranged between every two opposite stand columns, the positioning ropes move up and down along the stand columns, the two positioning ropes form a cross structure, the cross point of the two positioning ropes corresponds to the center of the heavy punch, the two positioning ropes form a cross structure, and the center of the positioning ropes is the center of the heavy punch, so that in the centering and calibrating process, the positioning ropes are not prone to falling off. The posi