Abstract: A docking structure includes a first base and a second base connected to the first base; a first electrode group arranged in parallel and combined on an insulating block; and a second electrode group arranged in parallel with the first electrode group, wherein the second electrode group is used for bonding the first electrode group, the second electrode group is combined with the first base and has freedom in a first direction, moves in the first direction by a first elastic structure; the first base is combined with the second base and has freedom in a second direction different from the first direction. A second elastic structure is connected between the first and second bases. A first plane of the first electrode group and a second plane of the second electrode group are kept in parallel surface contact during docking the first and second electrode groups.

Abstract: A finger device including a finger segment, a finger base, a first steering control mechanism, a first actuator, a second steering control mechanism, a universal joint and a second actuator is provided. The finger base is connected to one end of the finger segment, and the first steering control mechanism is disposed on the finger base. The first actuator is configured to provide a first moment to the first steering control mechanism, so that the finger segment and the finger base have a degree of freedom in a first moving direction. The second steering control mechanism is disposed on the finger base. The second actuator is configured to provide a second moment to the universal joint. The universal joint is rotatably connected between the second actuator and the second steering control mechanism, so that the finger segment has a degree of freedom in a second moving direction.

Abstract: A finger device including a finger segment, a finger base, a first steering control mechanism, a first actuator, a second steering control mechanism, a universal joint and a second actuator is provided. The finger base is connected to one end of the finger segment, and the first steering control mechanism is disposed on the finger base. The first actuator is configured to provide a first moment to the first steering control mechanism, so that the finger segment and the finger base have a degree of freedom in a first moving direction. The second steering control mechanism is disposed on the finger base. The second actuator is configured to provide a second moment to the universal joint. The universal joint is rotatably connected between the second actuator and the second steering control mechanism, so that the finger segment has a degree of freedom in a second moving direction.