Surface Contact Analysis for a Spatial Cam Mechanism

[+] Author and Article Information
W. H. Wang, C. H. Tseng, C. B. Tsay

Department of Mechanical Engineering, National Chiao Tung University, Hsinchu, Taiwan 30050, R.O.C.

J. Mech. Des 119(2), 169-177 (Jun 01, 1997) (9 pages) doi:10.1115/1.2826232 History: Received December 01, 1995; Revised September 01, 1996; Online December 11, 2007


This paper proposes and analyzes a new meshing condition between a modified hyperboloidal roller follower and a spatial cam surface. This new geometrical model can be utilized to avoid the edge contact phenomenon between a cylindrical roller follower and its mating cam surface. In the new model a modified hyperboloidal roller follower is selected to replace the original cylindrical roller follower. Once the new spatial cam mechanism is modeled by means of surface contact analysis (SCA), the contact condition between the modified hyperboloidal roller follower and the cam surface is clearly derived. Errors in the displacement function and the contact path arising from assembly errors are also analyzed. This study assists the manufacture and assembly of more accurate and higher quality spatial cam mechanisms.

Copyright © 1997 by The American Society of Mechanical Engineers
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