With the increasing application of robot in various industrial fields, it is requested that robot has the ability to control power. According to the contact task of rotary hull, a 3-DOF robot manipulator is designed in order to accomplish sticking of the colloid. The robot manipulator consists of a transfer joint and two revolute joints and robot end-effector. The robot manipulator could realize the contacting task combining with the driving system of rotary hull. The concrete processing comprising of driving screw transmission with the servo motor. In this way, robot manipulator could complete movement in horizontal direction, the revolute joint could be able to accomplish revolute motion of two dimension-space through a chain driving, the revolute joint of end-effector completes directly revolute motion with the servo motor.
Firstly, this design has been carried on the kinematics’ analysis in order to the manipulator, which consists of including the establishment of kinematics equation, the positive solutions of the kinematics equation, the corresponding inverse solutions. Secondly, the transfer joint, revolute joint and the transmission part are designed. The important part is the design of servo feeding system, which consists of the design of the platform and the screw, the selection of linear guide way, servo motor and reducer, etc. Finally, the corresponding calculations are done considering the system's main guide line such as components stiffness, strength and other performance parameters.
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