Carrying clamp and system and workpiece carrying method

The invention relates to a carrying clamp and system and a workpiece carrying method. The carrying clamp drives a transmission connecting rod to move through stretching and retracting of a driving mechanism, and the transmission connecting rod drives a transmission shaft to rotate; when the transmission shaft rotates, the transmission disc is driven to rotate, then the connecting rods are driven to move at the same time, and when the connecting rods move, the clamping fingers on the connecting seats are driven to move on the guide rails through the sliding blocks, so that the clamping fingers can be controlled to move by controlling the driving mechanism and move towards the axis direction or the reverse direction of the transmission shaft at the same time; according to the workpiece carrying method, the visual module is adopted in the carrying system and matched with the distance measuring module for compensation positioning, the overall dimension of the workpiece can be accurately obtained, meanwhile, the p