Despite the intensive studies in tolerancing this

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Unformatted text preview: datum symmetrically with respect to the X-coordinate of the pattern barycentre and as far as possible, is suitable when the distance between the holes is lower than half of the distance between the 2-locators on the primary datum. The second, consisting in placing the 2-locators on the primary datum on the vertices of the plate along the X axis, is suitable when the distance of the holes is higher than half of the distance between the 2-locators on the primary datum placed according to the barycentre method. By combining these two rules we move from the optimal solution, but the differences are very small and the method is very simple. ACNOWLEDGEMENTS The work has funded partially by the Italian M.I.U.R. (Italian Ministry of University and Research). REFERENCES [Armillotta et al., 1996] Armillotta, A.; Moroni, G.; Negrini, L.; Semeraro, Q.; “Analysis of deterministic positioning on workholding fixtures”, In: Proceedings of International Conference on Flexible Automation and Intelligent Manufactu...
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This note was uploaded on 08/03/2010 for the course DD 1234 taught by Professor Zczxc during the Spring '10 term at Magnolia Bible.

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