Patent ID: 8714903

Claim:
A robot, comprising: a base; a movable platform defining a first receiving portion; a shaft, the shaft rotatably connecting the movable platform and the base; three kinematic chains, the kinematic chains rotatably connecting the movable platform and the base; an end effector, the end effector defining an air orifice; and a rotary member, wherein the rotary member is rotatably connected to the movable platform, two opposite ends of the rotary member are connected to the shaft and the end effector, respectively, the movable platform defines an air hole, the rotary member comprises a first rotary portion received in the first receiving portion, the first rotary portion defines an airflow passage communicating between the air hole and the air orifice, the airflow passage comprises a conveying slot defined in an outer surface of the first rotary portion, a cavity defined in the center of the first rotary portion, and a through hole communicating between the cavity and the conveying slot, the conveying slot is substantially an annular slot extending around the outer surface of the first rotary portion, the air hole corresponds to the conveying slot, the end effector is fixed to the first rotary portion, and the air orifice communicates with the cavity.