The invention discloses a carrying
robot at seven
degrees of freedom with symmetrically arranged driven arms and belongs to the technical field of the
robot. The
robot comprises a frame, moveable platforms, a synchronous belt mechanism, a
ball screw, a
rack and pinion mechanism and three
branch chains, wherein each of the
branch chains comprises a big driving arm, a small driving arm, a driving arm connecting rod, a lining rack and a driven arm; the upper end of the driven arm is connected with the lower end part of the linking rack; the lower end of the driven arm is connected with an upper moveable platform. The moveable platform is remolded and upgraded and a degree of freedom is added on the basis of a six-axis
delta robot, so that the robot disclosed by the invention has two platforms. A lower moveable platform is deflected for a certain degree on the basis of the upper moveable platform, so that the
deflection angle of a
tail end executing mechanism is increased. The problems, such as, smaller
deflection angle of the
tail end executing mechanism, caused by the problems, such as, limitation to a parallel robot at
six degrees of freedom in a practical motion process, can be solved by the carrying robot disclosed by the invention; the application scope of the carrying robot disclosed by the invention is wider; the carrying robot can more effectively meet the practical requirement.