Robot mechanical gripper

The invention relates to the technical field of robots, in particular to a robot mechanical gripper. The robot mechanical gripper comprises a plurality of gripper bodies hinged to a small arm of a robot, wherein each gripper body comprises an outer gripper and an inner gripper movably arranged in the outer gripper, and a movable groove matched with the corresponding inner gripper is formed in each outer gripper; a permanent magnet is fixedly arranged at one end of each inner gripper, and a first electromagnet for driving the corresponding permanent magnet to move front and back is arranged on the inner side wall of the end, close to the small arm of the robot, of each movable groove; a limiting sliding block is arranged on the outer side wall of each inner gripper, and a limiting sliding groove matched with the corresponding limiting sliding block is formed in the inner side wall of each movable groove; and a positioning mechanism matched with the corresponding inner gripper is arranged in each outer gripper.