Original scientific paper

Circular interpolation and positioning accuracy deviation measurement on five axis machine tools with different structures

Matúš Beňo ; Slovak University of Technology, Faculty of Materials Science and Technology, Paulinska 16, 91724 Trnava, Slovak Republic
Marek Zvončan ; Slovak University of Technology, Faculty of Materials Science and Technology, Paulinska 16, 91724 Trnava, Slovak Republic
Martin Kováč ; Slovak University of Technology, Faculty of Materials Science and Technology, Paulinska 16, 91724 Trnava, Slovak Republic
Jozef Peterka ; Slovak University of Technology, Faculty of Materials Science and Technology, Paulinska 16, 91724 Trnava, Slovak Republic

Abstract

The article is focused on the issue of circular interpolation and positioning accuracy measurement on five axis CNC machine tools. Measurement of circular interpolation accuracy was realized in one plane (XZ) and more planes (XY, YZ, XZ), positioning accuracy was measured in one axis direction. NC program modifications for each measurement on machine tools were carried out. The main characteristic of the paper is measuring system and principle of measurement of positioning by laser interferometer and circular interpolation measurement by ballbar. Experiment setup and conditions are described as well as results. Evaluation is based upon results gained from charts generated from Renishaw software. The results of circular interpolation deviations were compared with nominal values guaranteed by machine tool producer. The results showed that there are not significant differences in machine positioning accuracy in accordance with kinematics structure and drive’s type. Visible effect was observed on the machine with two rulers on linear drives.

Keywords

accuracy; circular interpolation; laser interferometer; machine tool; measurement; positioning

Hrčak ID:

104075

URI

https://hrcak.srce.hr/104075

Publication date:

15.6.2013.

Article data in other languages: croatian

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