NDLI: An auto-alignment vision system with three-axis motion control mechanism

Content Provider	Springer Nature Link
Author	Nian, C.Y. Tarng, Y.S.
Copyright Year	2005
Abstract	In this study a specially designed three-axis motion control mechanism was applied to an auto-alignment vision system. During the automated production process, the fed-in position of the object usually involves a small, but non-negligible rotational (θ-directional) error in addition to x- and y-directional errors. An analytic algorithm is employed to calculate the relationship between the rotational center (original position) of the motion control mechanism and the relative coordinates obtained by two CCD cameras. With the Δx, Δy and Δθ determined, the automatic motion control mechanism can make rotational and translational movements along the three axes (X, Y1, and Y2) accordingly to compensate for the difference in position and orientation, thus achieving accurate alignment. Results from over hundreds of experimental runs are deemed reproducible within ±5 μm, proving that this design is feasible. Moreover, with the proposed design, the height of the three-axis motion control platform can be reduced from 300–400 mm to less than 120 mm, making it more compact.
Starting Page	1121
Ending Page	1131
Page Count	11
File Format	PDF
ISSN	02683768
Journal	The International Journal of Advanced Manufacturing Technology
Volume Number	26
Issue Number	9-10
e-ISSN	14333015
Language	English
Publisher	Springer-Verlag
Publisher Date	2005-05-04
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Auto-alignment Charge coupled device Fiducial mark Computer-Aided Engineering (CAD, CAE) and Design Mechanical Engineering Production/Logistics Industrial and Production Engineering
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Mechanical Engineering Computer Science Applications Software

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