直動従動節Constant-Diameterカムの輪郭設計

概要

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This paper proposes a novel approach to profile design of constant-diameter cam with a translating follower. The approach has some favorable features such as simple design calculation and easy programming, no requirement to numerically solve nonlinear equations, and thus can determine the cam profile together with the detailed data of radius of curvature and pressure angle precisely and conveniently. Moreover, two constraints for the design are also clarified in the paper. The first is that an opposite offset layout is necessary for both rollers if the centers of the rollers do not move along the same straight line. As the second constraint, the follower only can perform the period of displacement motion odd number times while one revolution of the cam and the motion in each period must be the same as well as the period range. The effectiveness and efficiency of the approach are sufficiently illustrated through two design examples of constant-diameter cam.