Abstract
The surface geometry of the roller-follower cam mechanisms are derived as the cam makes contact with the roller on their instantaneous screw axis.These surfaces, such as cam surface, follower surface, surface of action, and pitch surface, are ruled surfaces.With the restrictions of the geometric characteristics of a hyperboloidal roller, the relative locations of the axes of these cam mechanisms have to satisfy certain relation and the kinds of roller-follower cam mechanisms synthesized in axode contact are verified.The angular velocity of the roller and the screw pitch of the cam pair are derived, and the types of the contact surfaces, the pressure angle, and the purerolling cam pait are also discussed.
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