Intelligent fruit and vegetable unmanned picking mechanical arm

The invention discloses an intelligent fruit and vegetable unmanned picking mechanical arm, and belongs to the technical field of agricultural picking robots. The intelligent fruit and vegetable unmanned picking mechanical arm comprises a fixing seat and an outer positioning assembly, the fixing seat is connected to an unmanned aerial vehicle, a sliding rod arranged in the vertical direction is fixedly connected to the fixing seat, and the outer positioning assembly comprises a first circular ring arranged in the middle of the sliding rod in a sliding and sleeving mode, a second circular ring fixedly arranged in the middle of the sliding rod in a sleeving mode and a plurality of three-connecting-rod grabbing arms; the first circular ring is connected with a first driving assembly, and the three-connecting-rod grabbing arms are evenly distributed around the circumference of the sliding rod, so that fruit picking is achieved in the opening and closing process of the three-connecting-rod grabbing arms. According