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Towards the deployment of industrial robots as measurement instruments - An extended forward kinematic model incorporating geometric and nongeometric effects

Radkhah, Kathayon and Hemker, Thomas and Friedmann, Martin and Stryk, Oskar von and Stryk, Oskar von (2009):
Towards the deployment of industrial robots as measurement instruments - An extended forward kinematic model incorporating geometric and nongeometric effects.
In: Proc. 2009 IEEE/ASME Conference on Advanced Intelligent Mechatronics (AIM), Singapore, [Online-Edition: https://ieeexplore.ieee.org/document/5230028],
[Conference or Workshop Item]

Abstract

In the area of mounting and spot-welding of body-in-white, absolutely accurate robots are installed as measuring instruments, replacing expensive coordinate and other external measuring machines. Measurement technologies based on industrial robots play an increasingly important role. Such applications require highly accurate robots. Prior to deployment of highly accurate robot, however, it needs to be ensured that the implemented robot model fits the real model. Robot calibration can offer a significant opportunity to improve the positioning accuracy and to cut production costs. Existing calibration approaches fail to capture geometric and elastic effects occurring in the robot forward kinematics. Therefore, in this work an extended forward kinematic model incorporating both geometric and elastic effects has been developed in which the positioning accuracy of a manipulator, with or without an accurate internal robot model in the robot controller, is improved.

Item Type: Conference or Workshop Item
Erschienen: 2009
Creators: Radkhah, Kathayon and Hemker, Thomas and Friedmann, Martin and Stryk, Oskar von and Stryk, Oskar von
Title: Towards the deployment of industrial robots as measurement instruments - An extended forward kinematic model incorporating geometric and nongeometric effects
Language: English
Abstract:

In the area of mounting and spot-welding of body-in-white, absolutely accurate robots are installed as measuring instruments, replacing expensive coordinate and other external measuring machines. Measurement technologies based on industrial robots play an increasingly important role. Such applications require highly accurate robots. Prior to deployment of highly accurate robot, however, it needs to be ensured that the implemented robot model fits the real model. Robot calibration can offer a significant opportunity to improve the positioning accuracy and to cut production costs. Existing calibration approaches fail to capture geometric and elastic effects occurring in the robot forward kinematics. Therefore, in this work an extended forward kinematic model incorporating both geometric and elastic effects has been developed in which the positioning accuracy of a manipulator, with or without an accurate internal robot model in the robot controller, is improved.

Title of Book: Proc. 2009 IEEE/ASME Conference on Advanced Intelligent Mechatronics (AIM)
Place of Publication: Singapore
Divisions: 20 Department of Computer Science
20 Department of Computer Science > Simulation, Systems Optimization and Robotics Group
Date Deposited: 20 Jun 2016 23:26
Official URL: https://ieeexplore.ieee.org/document/5230028
Identification Number: radkhah:2009
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