Author(s)

C. Pislaru, D.G. Ford & J.M. Freeman

Abstract

Improving CNC machine tools performance by using modular approach C. Pislaru, D.G. Ford & J.M. Freeman Precision Engineering Centre, School of Engineering, Queensgate, HuddersfieldHDl 3DH, University of Huddersfield, UK Abstract The paper presents a comparison of single axis simulation results for various stimuli conditions against measurements for the same stimuli conditions on the machine. The results compare well and further comparison can be demonstrated against previously derived lumped parameter models for the same machine. Sinusoidal and co-sinusoidal inputs are introduced into a complex 2D model including geometric error components measured directly from the machine by laser interferometer. The simulated circular position error traces could then be directly compared with machine measured error traces obtained from using ball bar plots. Measured Bode plots based on the swept sine measurement technique show how the machine is operating across a broad frequency range and pro

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