六自由度上肢康复机器人机构设计及轨迹规划  

Mechanism design and trajectory planning of a 6-DOF upper limb rehabilitation robot

作　　者：张邦成[1] 兰旭腾 刘帅 庞在祥[1] ZHANG Bangcheng;LAN Xuteng;LIU Shuai;PANG Zaixiang(School of Mechatronical Engineering,Changchun University of Technology,Changchun 130012,China)

机构地区：[1]长春工业大学机电工程学院,吉林长春130012

出　　处：《机器人外科学杂志（中英文）》2024年第2期115-120,共6页Chinese Journal of Robotic Surgery

基　　金：国家自然科学基金面上项目(51875047)。

摘　　要：本研究设计一款六自由度上肢康复机器人,机器人采用绳索驱动、串并联相结合的关节结构形式,能够牵引偏瘫患者的上肢实现多个关节且活动范围较大的康复运动训练。针对上肢康复机器人机构适用性问题,基于运动学理论和D-H坐标系法建立上肢康复机器人本体D-H参数模型,根据空间坐标向量之间的平移、旋转关系,对运动序列建模分析,求解正运动学,通过封闭解法求解逆运动学。基于运动学分析结果,提出五次多项式函数关节空间轨迹规划方法,对上肢提拉抬肘运动进行轨迹规划仿真,验证了康复运动过程中的运动能力。A six-degree-of-freedom upper limb rehabilitation robot was designed in this study.The rope-driven robot was taken series-parallel circuit,which could pull the upper limbs of hemiplegic patients to achieve rehabilitation exercise training with multiple joints and a large range of motion.Aiming at the applicability of the upper limb rehabilitation robot mechanism,based on the kinematics theory,the Denavit-Hartenberg(DH)parameter model of the upper limb rehabilitation robot body was designed based on the DH coordinates.Then the motion sequence was modeled and analyzed to solve the forward kinematics by analyzing the relationship of translation and rotation between the space coordinate vectors,and the inverse kinematics was solved with the closed-form solution.Based on the results of kinematics analysis,a quintic polynomial function on joint space trajectory planning was proposed to simulate the trajectory planning of the upper limb lifting and elbow lifting,which could be used to verify the movement ability during the rehabilitation exercise.

关 键 词：上肢康复机器人 运动学分析 轨迹规划 

分 类 号：R615[医药卫生—外科学] R496[医药卫生—临床医学]