Evaluation and Representation of Machine tool Deformations
2011 (English)In: Journal of Machine Engineering, ISSN 1895-7595, Vol. 11, no 4, 118-129 p.Article in journal (Refereed) Published
This paper presents a novel test concept for the evaluation of the accuracy of NC machine tools. The evaluation of machine tools deformations is performed by help of a device similar to the double ball bar (DBB) with the difference that an adjustable load generated by the device can be applied between spindle nose and machine tool table. This load eliminates the play existing in machine tool joints, thus reproducing the testing conditions that exist during machining. Collected data are used to plot diagrams displaying characteristic aspects of achine tool performance and a number of key figures such as static stiffness may be etermined. The data can also be used for trend analysis; to predict any accuracy deviations, and further to conduct preventive maintenance instead of emergency calls. The determined static behaviour could also be used to improve digital models for process simulations and compensation of errors that are caused by deflection.
Place, publisher, year, edition, pages
Wroclaw: Editorial Institution of the Wroclaw Board of Scientific Technical Societies Federation NOT , 2011. Vol. 11, no 4, 118-129 p.
machine tool, testing, deformation, static stiffness, circular test, loaded double ball bar
Production Engineering, Human Work Science and Ergonomics
Research subject SRA - Production
IdentifiersURN: urn:nbn:se:kth:diva-105190OAI: oai:DiVA.org:kth-105190DiVA: diva2:570258
FunderXPRES - Initiative for excellence in production research
QC 201301232012-11-182012-11-182013-05-13Bibliographically approved