The Design and Implementation of a High-Precision Positioner Fixture
In this paper, a novel positioner fixture with a high repeated positioning accuracy and a high stiffness is proposed and investigated. A high-precision end-toothed disc is used to achieve the high repeated positioning accuracy of the designed positioner fixture. The mathematical models of the cumula...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8540473/ https://www.ncbi.nlm.nih.gov/pubmed/34683278 http://dx.doi.org/10.3390/mi12101227 |
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author | Zhao, Xuesen Tan, Rongkai Wang, Zhe Zou, Xicong Hu, Zhenjiang Sun, Tao |
author_facet | Zhao, Xuesen Tan, Rongkai Wang, Zhe Zou, Xicong Hu, Zhenjiang Sun, Tao |
author_sort | Zhao, Xuesen |
collection | PubMed |
description | In this paper, a novel positioner fixture with a high repeated positioning accuracy and a high stiffness is proposed and investigated. A high-precision end-toothed disc is used to achieve the high repeated positioning accuracy of the designed positioner fixture. The mathematical models of the cumulative error of the tooth pitch, the tooth alignment error and the error of the tooth profile half-angle of the end-toothed disc are analyzed. The allowable tolerance values of the cumulative error of the tooth pitch, the tooth alignment error and the error of the tooth profile half-angle of the end-toothed disc are given. According to the theoretical calculation results, a prototype positioner fixture is fabricated and its repeated positioning accuracy and stiffness are tested. The test results indicate that the stiffness of the proposed positioner fixture is 1050.5 N/μm, which is larger than the previous positioner fixtures of the same type. The repeated positioning accuracy of the proposed positioner fixture in the x, y and z directions are ±0.48 μm, ±0.45 μm and ±0.49 μm, respectively, which is significantly higher than the previous positioner fixtures. |
format | Online Article Text |
id | pubmed-8540473 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-85404732021-10-24 The Design and Implementation of a High-Precision Positioner Fixture Zhao, Xuesen Tan, Rongkai Wang, Zhe Zou, Xicong Hu, Zhenjiang Sun, Tao Micromachines (Basel) Article In this paper, a novel positioner fixture with a high repeated positioning accuracy and a high stiffness is proposed and investigated. A high-precision end-toothed disc is used to achieve the high repeated positioning accuracy of the designed positioner fixture. The mathematical models of the cumulative error of the tooth pitch, the tooth alignment error and the error of the tooth profile half-angle of the end-toothed disc are analyzed. The allowable tolerance values of the cumulative error of the tooth pitch, the tooth alignment error and the error of the tooth profile half-angle of the end-toothed disc are given. According to the theoretical calculation results, a prototype positioner fixture is fabricated and its repeated positioning accuracy and stiffness are tested. The test results indicate that the stiffness of the proposed positioner fixture is 1050.5 N/μm, which is larger than the previous positioner fixtures of the same type. The repeated positioning accuracy of the proposed positioner fixture in the x, y and z directions are ±0.48 μm, ±0.45 μm and ±0.49 μm, respectively, which is significantly higher than the previous positioner fixtures. MDPI 2021-10-08 /pmc/articles/PMC8540473/ /pubmed/34683278 http://dx.doi.org/10.3390/mi12101227 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Zhao, Xuesen Tan, Rongkai Wang, Zhe Zou, Xicong Hu, Zhenjiang Sun, Tao The Design and Implementation of a High-Precision Positioner Fixture |
title | The Design and Implementation of a High-Precision Positioner Fixture |
title_full | The Design and Implementation of a High-Precision Positioner Fixture |
title_fullStr | The Design and Implementation of a High-Precision Positioner Fixture |
title_full_unstemmed | The Design and Implementation of a High-Precision Positioner Fixture |
title_short | The Design and Implementation of a High-Precision Positioner Fixture |
title_sort | design and implementation of a high-precision positioner fixture |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8540473/ https://www.ncbi.nlm.nih.gov/pubmed/34683278 http://dx.doi.org/10.3390/mi12101227 |
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