Machine models and tool motions for simulating five-axis machining

Authors:
Stephen Mann;Sanjeev Bedi;Gilad Israeli;Xiaoran (Linda) Zhou
Affiliations:
University of Waterloo, David R.Cheriton School of Computer Science, Waterloo, Ontario, Canada N2L 3G1;University of Waterloo, Department of Mechanical Engineering, Waterloo, Ontario, Canada N2L 3G1;University of Waterloo, David R.Cheriton School of Computer Science, Waterloo, Ontario, Canada N2L 3G1;University of Waterloo, David R.Cheriton School of Computer Science, Waterloo, Ontario, Canada N2L 3G1
Venue:
Computer-Aided Design
Year:
2010

Citing 1
Cited 1

Computer Graphics: Theory Into Practice

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Comparing the kinematic efficiency of five-axis machine tool configurations through nonlinearity errors

Computer-Aided Design

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Abstract

This paper presents a method of determining the tool motion of a five-axis machine. The method is motivated by the imprint point method, where points on the machined surface are computed based on the tool position and tool motion. While simple linear motion can be used as a coarse approximation to this motion, this paper looks at more accurate models of tool motion based on machine kinematics that can be generalized and applied to any CNC machine with one tool head. A kinematic chain is created by decomposing the linear motion of a machine's translational and rotational axes into parameterized affine transformations, and a hierarchical model of the machine combines the transformations to provide an accurate model of machine motion.