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ISSN: 2168-9695

Advances in Robotics & Automation
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  • Research Article   
  • Adv Robot Autom 2018, Vol 7(1): 183
  • DOI: 10.4172/2168-9695.1000183

Industrial Robot Trajectory Accuracy Evaluation Maps for Hybrid Manufacturing Process Based on Joint Angle Error Analysis

Zhiyuan Wang*, Renwei Liu, Todd Sparks, Xueyang Chen and Frank Liou
Department of Mechanical and Aerospace Engineering, Missouri University of Science and Technology, USA
*Corresponding Author : Zhiyuan Wang, Department of Mechanical and Aerospace Engineering, Missouri University of Science and Technology, Rolla, Missouri 65409, USA, Tel: 5736128669, Email: [email protected]

Received Date: Jan 09, 2018 / Accepted Date: Jan 24, 2018 / Published Date: Jan 28, 2018

Abstract

Industrial robots have been widely used in various fields. The joint angle error is the main factor that affects the accuracy performance of the robot. It is important to notice that these kinematic parameters error cannot be eliminated from the robot system completely. Even after calibration, these errors still exist and will be fluctuated during the robot system running. This paper proposed a new method of finding the best position and orientation to perform a specific working path based on the current accuracy capacity of the robot system. By analyzing the robot forward/inverse kinematic and the angle error sensitivity of different joint in the serial manipulator system, a new evaluation formulation is established for mapping the trajectory accuracy within the robot’s working volume. The influence of different position and orientation on the movement accuracy of the end effector has been verified by experiments and discussed thoroughly. Finally, a visualized evaluation map can be obtained to describe the accuracy difference of a robotic laser deposition working path at different positions and orientations. This method is helpful for making the maximum usage of the robot’s current accuracy ability rather than blindly pursuing the higher accuracy of the robot system.

Keywords: Industrial robot; Trajectory accuracy; Joint angle error; Hybrid manufacturing

Citation: Wang Z, Liu R, Sparks T, Chen X, Liou F (2018) Industrial Robot Trajectory Accuracy Evaluation Maps for Hybrid Manufacturing Process Based on Joint Angle Error Analysis. Adv Robot Autom 7: 183. Doi: 10.4172/2168-9695.1000183

Copyright: © 2018 Wang Z, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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