To inspect cam profile errors, a coordinate measuring machine (CMM) is frequently employed. The coordinate data of discrete points at the cam surface are measured by a CMM in order to further evaluate the actual cam profile with complicated interpolation algorithms, and then the cam contour approximated by these algorithms may be compared with the theoretical one. In this paper, a direct and simple analytical method, instead of a numerical interpolation algorithm, is proposed for inspecting the profile deviations of conjugate disk cams with coordinate measurement data. The method is based on the derived correlation between the radial-dimension errors and the normal-direction errors of conjugate cam profiles. To verify the proposed method, an experiment of inspecting a pair of conjugate disk cam profiles was conducted. The experimental results obtained from the proposed method were compared with those obtained by using the Hermite interpolation method. It shows that this method is accurate and more efficient for inspecting the profile errors of conjugate disk cams.
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e-mail: wtchang@webmail.pme.nthu.edu.tw
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February 2008
Research Papers
Inspecting Profile Errors of Conjugate Disk Cams With Coordinate Measurement
Wen-Tung Chang,
Wen-Tung Chang
Department of Power Mechanical Engineering,
e-mail: wtchang@webmail.pme.nthu.edu.tw
National Tsing Hua University
, Hsinchu 30013, Taiwan
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Long-Iong Wu,
Long-Iong Wu
Department of Power Mechanical Engineering,
National Tsing Hua University
, Hsinchu 30013, Taiwan
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Kuang-Hua Fuh,
Kuang-Hua Fuh
Department of Mechanical and Mechatronic Engineering,
National Taiwan Ocean University
, Keelung 20224, Taiwan
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Chen-Chou Lin
Chen-Chou Lin
Department of Mechanical and Mechatronic Engineering,
National Taiwan Ocean University
, Keelung 20224, Taiwan
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Wen-Tung Chang
Department of Power Mechanical Engineering,
National Tsing Hua University
, Hsinchu 30013, Taiwane-mail: wtchang@webmail.pme.nthu.edu.tw
Long-Iong Wu
Department of Power Mechanical Engineering,
National Tsing Hua University
, Hsinchu 30013, Taiwan
Kuang-Hua Fuh
Department of Mechanical and Mechatronic Engineering,
National Taiwan Ocean University
, Keelung 20224, Taiwan
Chen-Chou Lin
Department of Mechanical and Mechatronic Engineering,
National Taiwan Ocean University
, Keelung 20224, TaiwanJ. Manuf. Sci. Eng. Feb 2008, 130(1): 011009 (9 pages)
Published Online: February 6, 2008
Article history
Received:
April 6, 2007
Revised:
September 19, 2007
Published:
February 6, 2008
Citation
Chang, W., Wu, L., Fuh, K., and Lin, C. (February 6, 2008). "Inspecting Profile Errors of Conjugate Disk Cams With Coordinate Measurement." ASME. J. Manuf. Sci. Eng. February 2008; 130(1): 011009. https://doi.org/10.1115/1.2815348
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