This paper presents a method for designing stationary cams with constant speed roller followers. A stationary cam is immovable, but it guides its follower to produce a desired motion with the follower being driven by other links. In order to avoid infinite jerk of the follower motion, the pitch curve of a stationary cam should consist of pieces of transition curve, which provide gradual change in curvature and are interposed between straight lines and circular arcs. The general parametric equations of transition curves are derived and the cam design process is demonstrated. This method is applicable for designing the guideways of tool magazine in automatic tool-changing system of the machine center.

1.
Angeles, J., and Lopez-Cajun, C. S., 1991, Optimization of Cam Mechanisms, Kluwer Academic Publishers, Dordrecht, Netherlands.
2.
Chen, F. Y., 1982, Mechanics and Design of Cam Mechanisms, Pergamon Press, New York.
3.
Davis, R. E., Foote, F. S., Anderson, J. M., and Mikhail, E. M., 1981, Surveying Theory and Practice, 6th Ed., McGraw-Hill, New York.
4.
Jensen, P. W., 1987, Cam Design and Manufacture, 2nd Ed., Marcel Dekker, New York.
5.
Lawrence, J. D., 1972, A Catalog of Special Plane Curves, Dover Publications, New York.
6.
Norton, R. L., 1992, Design of Machinery, McGraw-Hill, New York.
7.
Reeve, J., 1995, Cams for Industry, Mechanical Engineering Publications, London.
8.
Rothbart, H. A., 1956, Cams, John Wiley & Sons, New York.
9.
Zwikker, C., 1963, The Advanced Geometry of Plane Curves and their Applications, Dover Publications, New York.
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