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https://open.uns.ac.rs/handle/123456789/8655
Nаziv: | Locating and clamping of complex geometry workpieces with skewed holes in multiple-constraint conditions | Аutоri: | Tadic B. Bogdanovic B. Jeremić, Biljana Todorovic P. Lužanin, Ognjan Budak, Igor Vukelić, Đorđe |
Dаtum izdаvаnjа: | 26-сеп-2013 | Čаsоpis: | Assembly Automation | Sažetak: | Purpose - The purpose of this paper is to propose a general model for locating and clamping workpieces of complex geometry with two skewed holes under multiple constraints. Design/methodology/approach - Numerous constraints related to application of the proposed model are discussed as prerequisite to design of fixture solution. Based on theoretical model, a fixture was designed and successfully tested in experimental investigation. Experimental results were also verified using FEM simulations. Findings - This study showed that, opposed to conventional approach, novel solution results in significantly smaller fixture dimensions, while providing greater stability. Insertion of mandrels and supports element sub-assemblies into the workpiece holes significantly increases workpiece stiffness through an increased moment of inertia, while the internal support elements largely diminish the problem of thin wall deformation in the workpiece. Practical implications - The fixture designed in this case was actually used in industrial application to accommodate a thin-walled casting of gearbox housing, where it proved to be a very stable framework. It can be used in industry without any major readjustments. Originality/value - According to available literature, this work is the first successful implementation of a fixture solution in which the problem of multiple constraints is solved by attaching centering elements, support sub-assemblies, and other fixture elements to the internal workpiece walls, and then locating them in the second part of the fixture. © Emerald Group Publishing Limited. | URI: | https://open.uns.ac.rs/handle/123456789/8655 | ISSN: | 1445154 | DOI: | 10.1108/AA-09-2012-074 |
Nаlаzi sе u kоlеkciјаmа: | FTN Publikacije/Publications |
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