Title: Design optimisation of cutting parameters for a class of radially-compliant spindles via virtual prototyping tools

Authors: Giovanni Berselli; Marcello Pellicciari; Gabriele Bigi; Roberto P. Razzoli

Addresses: University of Genova, Via all'Opera Pia 15/A – 16145 Genova, Italy ' University of Modena and Reggio Emilia, Via Vignolese 905/B, 41125 Modena, Italy ' University of Modena and Reggio Emilia, Via Vignolese 905/B, 41125 Modena, Italy ' University of Genova, Via all'Opera Pia 15/A – 16145 Genova, Italy

Abstract: Robotic deburring (RD) still requires long and delicate physical tests to tune the process-parameters, thus drastically reducing the robotic cell productivity. Henceforth, engineering methods and tools are needed to optimise the RD application within a virtual environment, replicating the real behaviour of the robot tooling under different process conditions, namely unpredictable variety of burr size/shape and limited accuracy of the robot motions. To this purpose, the spindle compliance, which plays a fundamental role, is unfortunately not evaluated by state-of-the-art simulation tools. The present paper proposes a virtual prototype (VP) of a radially-compliant spindle, suitable to assess and optimise the deburring efficiency in different case scenarios. A multi-body model of the spindle, integrated with the process behavioural model, predicts process forces and optimal deburring parameters, delivering the contour maps of the envisaged deburring error as function of feed rate and tool compliance. An industrial case-study is provided.

Keywords: virtual prototyping; parameter design; robotic deburring; passively compliant spindle.

DOI: 10.1504/IJCAET.2019.098138

International Journal of Computer Aided Engineering and Technology, 2019 Vol.11 No.2, pp.232 - 252

Received: 15 Jul 2016
Accepted: 01 Jan 2017
Published online: 05 Mar 2019 *

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