关节机器人定位精度影响因素分析
黄松,胡晓兵,周飞,高雅楠,范启忠
(四川大学 制造科学与工程学院,四川 成都 610065)
摘要:通过调查研究找出机器人定位精度的影响因素,进行机器人运动学分析,建立以D-H模型为基础的MDH机器人运动学误差模型,结合已设计完成的机器人,利用SolidWorks软件的公差分析插件分析由零件制造误差、装配误差和关节间隙引起的运动学误差,得出机器人各关节精度偏差的极限值。分析结果得出在运动学因素的影响下,机器人名义位姿与实际位姿之间的误差较大,影响了机器人的定位精度,需进一步对其进行补偿。
关键词:动力学分析;参数;误差模型;定位精度
中图分类号:TP242              文献标志码:A             doi:10.3969/j.issn.1006-0316.2014.04.018文章编号:1006-0316 (2014) 04-0070-05
Analysis of the factors affecting the precision of robot localization
HUANG Song,HU Xiao-bing,ZHOU Fei,GAO Ya-nan,FAN Qi-zhong
( College of Manufacturing Science and Engineering, Sichuan University, Chengdu 610065, China )
Abstract:Through the investigation and study to find out the influence factors of robot localization accuracy, the robot kinematics is analyzed, The MDH kinematics error model of robot are established based on D-H model, combined with the design of robot which has been finished, robot kinematics errors caused by parts manufacture, assembly and joint clearance are analyzed by using the plug-in unit in SolidWorks to obtain the limit deviations. Results of robot accuracy deviation limit value of each joint, It is found that the error between the named position and the actual position influenced by robot kinematics factors is great, which need to be compensated.
Key words:kinematic analysis;parameter;error model;positioning accuracy
 
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收稿日期:2013-10-15
基金项目:国家“高档数控机床与基础制造装备”科技重大专项资助项目(2012ZX0411-031)
作者简介:黄松(1988-),男,安徽阜阳人,硕士研究生,主要研究方向为工业机器人;胡晓兵(1970-),男,湖北黄冈人,教授,研究生导师,主要研究方向为机器人、机器人视觉、企业信息管理。
 

 

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