A Hole-Plate Artifact Design for the Volumetric Error Calibration of CMM |
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| Authors: | ES Lee M Burdekin |
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| Affiliation: | (1) Department of Mechanical Engineering, Chungbuk National University, Choungju, South Korea, KR;(2) Department of Mechanical Engineering, UMIST, Manchester, UK, GB |
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| Abstract: | To measure the volumetric error of coordinate measuring machines (CMMs), a hole-plate artifact method was studied. Example
designs of the hole-plate are shown using titanium and ceramic materials. The deflection by its own weight of the designed
hole-plate is analysed using the finite element method. The hole distances moved by the deflection are shown in different
hole-plate set-up cases, for vertical and horizontal positions. The influence of inside hole roundness as a measuring standard
is also studied. Eccentric errors for different hole roundness are simulated. The hole-plate set-up errors are also discussed.
A method for obtaining the parametric errors of a CMM is shown using the hole-plate as a measuring artifact for CMM positioning
error. In addition, a method for measuring 2D and 3D length errors using the hole-plate data is introduced. |
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| Keywords: | ,Coordinate measuring machine (CMM), FEM (finite element method), Hole plate, Hole roundness, Parametric error, Three-dimensional,,,,,length error, Volumetric error |
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