Rotary joint drive module of robot

The utility model belongs to the technical field of the robot, concretely relates to rotary joint drive module of robot mainly comprises screw mechanism, three link mechanism, specifically includes direct current motor, shaft coupling, ball screw fixing base, slider, lead screw, ball screw supporting seat, connecting piece, connecting rod, support rod assembly a, support rod assembly b, support rod assembly c, location connecting plate a, location connecting plate b. Rotary joint drive module of robot combines three link mechanism characteristics based on the ball screw principle, by three link mechanism of screw mechanism drive, realizes the high -efficient transmission of variable -speed drive(VSD) and moment, has improved rotary joint's drive efficiency, has reduced the joint and has rotated the power requirement to driving motor. Rotary joint drive module of robot's upper and lower end pipe fitting is processed respectively to inside and outside helicitic texture, is convenient for realize the interconnec