Patent ID: 8516919

Claim:
A robot comprising: a base; a movable platform; a plurality of control arms rotatably connected to the base and the movable platform, respectively; a first actuator; a plurality of second actuators to respectively drive the control arms to swing; and a rotation mechanism, comprising: a flange rotated by the first actuator; the flange mounted on the base; a shaft extending along a first axis, one end of the shaft rotatably connected to the movable platform; a first swing member rotatably connected to and received in the flange around a second axis substantially perpendicular to the first axis; and a second swing member rotatably connected to and received in the first swing member around a third axis substantially perpendicular to the first axis and the second axis; wherein the shaft extends through the flange, the first swing member, and the second swing member; and the shaft is non-rotatably and slidably received in the second swing member.