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Investigation of multi-axis system static and kinematic characteristics
KTH, School of Industrial Engineering and Management (ITM), Production Engineering. (Manufacturing and Metrology Systems)ORCID iD: 0000-0002-6989-2989
KTH, School of Industrial Engineering and Management (ITM), Production Engineering. (Manufacturing and Metrology Systems)ORCID iD: 0000-0001-9185-4607
2016 (English)Conference paper, Published paper (Refereed)
Abstract [en]

Multi-axis machine tools performance is essential in achieving high positioning accuracy at the desired feed rate and to withstand mechanical loads induced by the process-machine interaction. In this regard evaluation and characterization of multi-axis machine performance in terms of kinematic and static accuracy under variable load operating conditions poses a challenge.The paper aims to investigate and characterize the kinematic and static accuracy of a multi-axis milling centre under loaded conditions. Employing the concept of Elastically Linked System (ELS) for “off-operational” evaluation, the accuracy due to the interaction between the machine’s structure the machining process loads and the control system is assessed. Using the Loaded Double Ball Bar (LDBB) measurement system the cutting process is emulated by inserting an “elastic link” between the tool and the workpiece that closes the force-loop of the system.A set of workspace positions is selected to perform the LDBB measurements. The positions are selected so as to cover an adequate region of the effective machining workspace and at the same time utilizing a combination of linear and rotational axis positions and orientations to allow the investigation of their behavior and the effect of the machine structure. The captured deformations and their variation within the examined workspace region give a comprehensive view of the machine’s kinematic and static accuracy under the effect of the load induced errors and kinematic inaccuracies.

Place, publisher, year, edition, pages
2016.
Keywords [en]
Machine tool, Accuracy, Elastically Linked Systems
National Category
Other Mechanical Engineering
Research subject
SRA - Production
Identifiers
URN: urn:nbn:se:kth:diva-202397OAI: oai:DiVA.org:kth-202397DiVA, id: diva2:1076572
Conference
The 7th International Swedish Production Symposium
Funder
XPRES - Initiative for excellence in production researchVINNOVA
Note

QC 20170308

Available from: 2017-02-23 Created: 2017-02-23 Last updated: 2017-03-08Bibliographically approved

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Laspas, TheodorosArchenti, Andreas
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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf