Aiming at the shortcomings of most of the current upper limb rehabilitation robots
this paper first designed a 4-DOF rigid⁃flexible coupled series⁃parallel rehabilitation robot arm with the advantages of rope drive and parallel structure.Secondly
under the condition of mapping relationship with joint space
the kinematic model of the rehabilitation manipulator was established by using the D⁃H coordinate method.Finally
in the Matlab environment
the relation between each joint angle
rope length and speed with time was simulated and analyzed.The analysis results show that the rationality of the structural design of the rigid⁃flexible coupling series⁃parallel rehabilitation manipulator is presented
and it also provides a theoretical basis for analyzing the trajectory planning of the rehabilitation manipulator.
关键词
刚柔耦合康复机械臂结构设计正逆运动学仿真分析
Keywords
Rigid-flexible couplingRehabilitation robotic armStructural designForward and inverse kinematicsSimulation analysis