Patent attributes
A robotic hand includes a servo housing, a printed circuit board (PCB), a motor, a planetary gear transmission assembly and a plurality of claws rotatably connected to the servo housing. The motor is electrically connected to the PCB. An input end of the planetary gear transmission assembly is connected to an output shaft of the motor. An output end of the planetary gear transmission assembly includes a cam having a number of protruding portions in a circumferential direction thereof. Each two adjacent protruding portions are spaced apart from each other by a space, thereby forming a curved circumferential surface. One end of each of the claws stays in contact with the curved circumferential surface, enabling the claws to be rotatable toward or away from one another when driven by the cam.
