Modularized neck of humanoid robot

The invention provides a modularized neck of a humanoid robot, which belongs to the technical field of robots and comprises a rope, a movable platform, a two-degree-of-freedom parallel mechanism, a rope pre-tightening mechanism, a rotating platform, a first rope winding drum, a second rope winding drum, a shell and a driving mechanism, according to the neck device, three-degree-of-freedom neck movement can be achieved by combining the rope with the rotary drum and the kinematic chain set, the neck device of the robot can be modularized, and different robot heads can be connected through the movable platform; the kinematic chain group is arranged, the movable pulley principle is adopted, tension and rigidity are amplified in the two-degree-of-freedom motion direction, and the tension and rigidity are not lost while it is ensured that the mechanism is light in weight, compact and small; by arranging the rope pre-tightening mechanism, the problem that the rope is lengthened due to the characteristics of the rope