Micro-needle buckling visual self-calibration system and calibration method thereof

The invention discloses a micro-needle buckling visual self-calibration system and a calibration method thereof. The calibration method comprises the following steps: moving a suction nozzle to a first shooting position; controlling the first camera to photograph the suction nozzle, and determining a feature point coordinate of the suction nozzle relative to the first camera; moving the suction nozzle and the second camera to a second shooting position; controlling the first camera and the second camera to shoot the correction film and fitting the feature points to obtain position coordinates of the correction film relative to the first camera and the second camera; calculating the compensation from the suction nozzle feature coordinate point to the second camera coordinate origin; moving the suction nozzle and the second camera to a micro-needle buckling position; controlling a second camera to acquire a microneedle seat image, fitting the feature position, and outputting the coordinate of each buckling poin