Modelling thermomechanical behaviour of multi-axis machine tools

Autor:	Flm Frank Delbressine, Ghj Guido Florussen, LA Schijvenaars, Phj Piet Schellekens
Přispěvatelé:	Mechanical Engineering
Rok vydání:	2006
Předmět:	Engineering business.product_category Precision engineering business.industry General Engineering Mechanical engineering Kinematics Rigid body Machine tool Length measurement Machining Control theory business Reduction (mathematics) Error detection and correction
Zdroj:	Precision Engineering, 30(1), 47-53. Elsevier
ISSN:	0141-6359
DOI:	10.1016/j.precisioneng.2005.05.005
Popis:	A new measurement technique is proposed for the assessment of thermally induced errors of machine tools. The basic idea is to measure changes of length by a telescopic double ball bar (TDBB) at multiple locations in the machine's workspace while the machine tool is thermally excited with various duty cycles. In addition to the measurement method, a thermal machine error model is proposed for software error compensation purposes to enhance the machine's positioning accuracy significantly. This model describes the relative positioning error of the tool with respect to the workpiece table as a function of axis position and temperature. Numerous validation measurements reveal that about 60\% of the thermally induced errors can be described by the thermal machine error model proposed
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e4f8930073422fa9703b4e8378be1ed3 https://doi.org/10.1016/j.precisioneng.2005.05.005 Zobrazit plný text záznamu Full Text from ScienceDirect