Title: Hybrid kinematics machine tool for drilling applications: precision prediction using advanced software tools

Authors: Yair Shneor, Vladimir Chapsky, Vladimir Portman

Addresses: Department of Mechanical Engineering, Ben-Gurion University of the Negev, P.O. Box 653, 84105, Beer-Sheva, Israel. ' Department of Mechanical Engineering, Ben-Gurion University of the Negev, P.O. Box 653, 84105, Beer-Sheva, Israel. ' Department of Mechanical Engineering, Ben-Gurion University of the Negev, P.O. Box 653, 84105, Beer-Sheva, Israel

Abstract: We present a new approach for precision prediction of parallel kinematics machine tools by virtual prototyping (VP) using advanced software tools. VP modelling and kinematics simulation using MSC/ADAMS was carried out for the proposed parallel drilling module mounted on a serial milling machine base, to perform a 3-PRS-PP hybrid-mechanism-based machine tool. The related kinematic analysis, such as the displacement and velocity analysis of the drilling tool end, the rotation angle analysis of the ball joints, the linear movements of the prismatic joints, is obtained. Kinematics analyses and simulations were carried out with and without manufacturing and assembly deviations. The effects of deviations on machine performances were analysed using two-dimensional probability distribution analysis. We present the application of a virtual prototype simulation approach in the parametric design process, structural design and error budget determination for new types of machine tools.

Keywords: design engineering; parallel kinematics machines; PKM; machine tool simulation; virtual prototyping; error budget; drilling; precision prediction; precision accuracy; machine tool design; kinematic analysis; displacement; velocity analysis; drilling tool end; rotation angle analysis; ball joints; linear movements; prismatic joints.

DOI: 10.1504/IJDE.2010.034861

International Journal of Design Engineering, 2010 Vol.3 No.2, pp.133 - 150

Published online: 25 Aug 2010 *

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