A Robotic Deburring System of Foundry Castings based on Flexible Workobject Localization

摘要

This paper presents methods to improve flexibility and accuracy of deburring of castings. We apply several methods including off-line programming of thedeburring paths, accurate localization of the workobject, surface measuring of the workobject and a force guided motion control during the deburring task. The eye-in-hand calibration as well as the localization of the workobject we carry out using the Bayesian -form estimation method with recursive sensor fusion. As a result from the workobject localization we obtain a 3 DOF location increment (position difference between the simulation model and actual workcell) and actual deburring paths are corrected using that increment. The simulation phase includes octree-based collision check and the faceting uses octree principle too. The paper includes results from actual tests which are promising. The methods are designed to be easy-to-implement in any industrial robot.