Kinematic parameter identification procedure of an articulated arm coordinate measuring machine based on a metrology platform
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A still current challenge of paramount importance for manufacturing metrology is the industry and laboratories’ increasing demand for faster inspection and verification measuring procedures to determine the conformance of products to dimensional or functional requirements. Within this context, a measuring system group that has gained great importance in the field of high precision dimensional verification are the portable coordinate measuring machines (PCMMs) such as articulated arm coordinate measuring machine (AACMM). Nevertheless, an important drawback of these type of instruments are the time-consuming, tedious, and expensive tasks inherent to their verification and kinematic parameter identification procedures. In this work, a kinematic parameter identification procedure of an AACMM by means of an indexed metrology platform is presented. Moreover, the kinematic modeling of the AACMM is developed, and the optimization of the arm kinematic parameters to minimize the measurement error is carried out in terms of eight objective functions. Finally, a comparison between the optimized parameters and the nominal parameters is discussed, showing the advantages of using the indexed metrology platform (IMP) in the optimization procedure.
KeywordsManufacturing metrology environment Portable coordinate measuring machine Indexed metrology platform Kinematic parameter identification Articulated arm coordinate measuring machine
This work is supported by Consejo Nacional de Ciencia y Tecnología (Concayt) of México. This work was supported by the DICON Innpacto Project (IPT-2011-1191-020000), Development of New Advanced Dimensional Control Systems in Manufacturing Processes of High-Impact Sectors, by the Ministerio de Economía y Competitividad of the Spain Government.
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