• Infrared and Laser Engineering
  • Vol. 49, Issue 10, 20200216 (2020)
Bo Zhang, Wengjian Zhang, and Lihua Lei*
Author Affiliations
  • Shanghai Institute of Measurement and Testing Technology, Shanghai 201203, China
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    DOI: 10.3788/IRLA20200216 Cite this Article
    Bo Zhang, Wengjian Zhang, Lihua Lei. Development of coaxiality measurement system of turbine components and stud standard parts[J]. Infrared and Laser Engineering, 2020, 49(10): 20200216 Copy Citation Text show less

    Abstract

    Turbocharger and gearbox were widely used in the precision machinery manufacturing industry. The dimensional accuracy of turbine components and stud standard parts was an important guarantee for the assembly accuracy of turbine components and gearbox, among which coaxiality was a key parameter for the dimensional accuracy of turbine components and stud standard parts. According to the demands of coaxiality measurement for turbine components and stud standard parts, a set of checking fixture was developed, and a software based on LabVIEW was built for the measurement. The coaxiality of stud standard M12 was measured by experiment and the uncertainty of measurement was evaluated. The experimental results show that the coaxiality error obtained from the four measurements is 6.3–6.5 μm, and the extended uncertainty reaches 2.6 μm. The results show that the developed coaxiality measurement system is suitable for the high precision measurement of the coaxiality of turbine parts and stud standard parts.
    $t = \left| {{M_a} - {M_b}} \right|$()

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    $\begin{split} uc =& \displaystyle\sum\limits_{i = 1}^n {\sqrt u i} = \\ & \sqrt {{{0.2}^2} + {1^2} + {{0.71}^2} + {{002}^2}} = 1.26 \;\text{μ} {\rm{m}} \\ \end{split} $()

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    $U = k{u_c} = 2 \times 1.26 = 2.52 \approx 2.6\; \text{μ} {\rm{m}}$()

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    Bo Zhang, Wengjian Zhang, Lihua Lei. Development of coaxiality measurement system of turbine components and stud standard parts[J]. Infrared and Laser Engineering, 2020, 49(10): 20200216
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