共查询到19条相似文献,搜索用时 62 毫秒
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《机械制造与自动化》2016,(5)
阐述了一种基于SCARA结构的智能对弈机器人。利用基于SCARA结构的四自由度电机配合信息传感器进行图像识别,通过控制算法实现"手"、"脚"功能,运用高精度运动控制技术,能够模仿人类的思考,在棋盘上和人对弈走棋过程。并且以优异的算法、快速的响应运动、高稳定性、高智能程度通过实验生产,实现国内多个科技馆的游客互动展示。 相似文献
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实现机器人的精确控制需要将机器人动力学模型加入控制律中,但是动力学建模过程中引入的测量误差以及摩擦力、驱动器动力学特性等非线性因素会引起较大的建模误差,从而影响机器人的控制精度。针对这个问题,以SCARA机器人为研究对象,采用高斯过程回归方法,直接通过SCARA机器人的输入与输出量对其逆向动力学模型进行估计。并将估计模型用于机器人的计算力矩控制。通过ADAMS和Simulink联合仿真的方式,对基于回归预测模型的计算力矩控制与采用解析模型的计算力矩控制进行了仿真对比实验,结果表明基于高斯过程回归模型的计算力矩控制有更好的位置跟踪效果。 相似文献
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论述加装Renishaw OMP40测头在SCARA型工业机器人的应用原理及可行性,提出了将Renishaw测头在SCARA型工业机器人上用于测量的新方法.开发了SCARA机器人的测量功能,实现了测量自动化. 相似文献
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基于UML建模的喷涂机器人控制系统的设计 总被引:1,自引:0,他引:1
为了提高喷涂机器人控制系统的可靠性和可维护性,提出了一种针对喷涂机器人控制系统的分析与建模方法。建模过程分为三个步骤:首先应用UML用例图,对啧涂机器人控制系统进行描述;然后应用UML类图建立喷涂机器人控制系统各部分的静态模型;最后通过分析系统工作流程,得出喷涂机器人控制系统的动态模型,在喷涂机器人控制系统软件开发过程中验证了该建模方法的可行性。 相似文献
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Jang Myung Lee Min-Cheol Lee Kwon Son Man Hyung Lee Sung Hyun Han 《Journal of Mechanical Science and Technology》1998,12(6):1104-1115
A control system for SCARA robot is designed for implementing a robust dynamic control algorithm. This study focuses on the
use of DSPs in the design of joint controllers and interfaces in between the host controller and four joint controllers and
in between the joint controllers and four servo drives. The mechanical body of SCARA robot and the servo drives, are selected
from the commercially available products. The four joint controllers, assigned to each joint separately, are combined into
a common system through the mother board hardwarewise and through the global memory softwarewise. The mother board is designed
to connect joint controllers onto the board through the slots adopting PC/104 bus structures. The global memory stores the
common data which can be shared by joint controllers and used by the host computer directly, and it virtually combines the
whole system into one. To demonstrate the performance and efficiency of the system, a robust inverse dynamic algorithm is
proposed and implemented for a faster and more precise control. The robust inverse dynamic algorithm is basically derived
from an inverse dynamic algorithm and a PID compensator. Based upon the derived dynamic equations of SCARA robot, the inverse
dynamic algorithm is initially implemented with l msec of control cycle—0.3 msec is actually used for the control algorithm—in
this system. The algorithm is found to be inadequate for the high speed and precision tasks due to inherent modelling errors
and time-varying factors. Therefore a variable PID algorithm is combined with the inverse dynamic algorithm to reinforce robustness
of control. Experimental data using the proposed algorithm are presented and compared with the results obtained from the PID
and the inverse dynamic algorithms. 相似文献
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渗碳检测机器人测控系统设计 总被引:1,自引:0,他引:1
根据渗碳检测机器人的设计要求,开发出渗碳检测机器人测控系统,并完成系统的硬件配置.该系统包括机器人系统和控制台系统两大部分,机器人与控制台之间采用无线通信进行数据传输.根据系统总体测控思想和策略,提出了对机器人运动的控制方法和3种检测模式,使机器人能较好地适应现场工作环境. 相似文献
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Error Modeling and Sensitivity Analysis of a Parallel Robot with SCARA(Selective Compliance Assembly Robot Arm) Motions 总被引:1,自引:1,他引:1
Parallel robots with SCARA(selective compliance assembly robot arm) motions are utilized widely in the field of high speed pick-and-place manipulation. Error modeling for these robots generally simplifies the parallelogram structures included by the robots as a link. As the established error model fails to reflect the error feature of the parallelogram structures, the effect of accuracy design and kinematic calibration based on the error model come to be undermined. An error modeling methodology is proposed to establish an error model of parallel robots with parallelogram structures. The error model can embody the geometric errors of all joints, including the joints of parallelogram structures. Thus it can contain more exhaustively the factors that reduce the accuracy of the robot. Based on the error model and some sensitivity indices defined in the sense of statistics, sensitivity analysis is carried out. Accordingly, some atlases are depicted to express each geometric error’s influence on the moving platform’s pose errors. From these atlases, the geometric errors that have greater impact on the accuracy of the moving platform are identified, and some sensitive areas where the pose errors of the moving platform are extremely sensitive to the geometric errors are also figured out. By taking into account the error factors which are generally neglected in all existing modeling methods, the proposed modeling method can thoroughly disclose the process of error transmission and enhance the efficacy of accuracy design and calibration. 相似文献
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工业机械手运动学仿真 总被引:1,自引:0,他引:1
使用Pro/Engineer建立了工业水平多关节机械手3D模型,并使用Adams作为仿真工具,实际分析了机械手的运动学和动力学特征:介绍了机械手设计的过程与方法,取得了优化的3D设计参数,为3D建模与优化提供了一种实际方法. 相似文献