Considering that people can't get close to the gripper in radioactive environment,this paper puts forward a design of automatic gripper,which can lift and carry heavy objects by means of crane through periodic lifting and falling without the assistance of people.Based on the principle of cam mechanism and connecting rod mechanism,the gripper realizes the integration of opening and closing actions of rotating hook structure.The experimental results of the automatic gripper show that the automatic gripper can grasp and release heavy objects for many times,and the process is smooth and free from jamming,which verifies the correctness and feasibility of the design.The proposed structure and its design method can provide reference for other similar products.
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