Lecture_17 - Kinematics and Dynamics of Machines of ENGR...

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Kinematics and Dynamics Kinematics and Dynamics of Machines of Machines ENGR 3270U ENGR 3270U Lecture 17 Lecture 17 Yuping He University of Ontario Institute of Technology November 17, 2008

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1.2 8.7 Determining the Cam Profile Given , the cam surface can be determined either graphically or analytically. ) ( θ f y = For accurate cams, the analytical method and CNC milling machines should be used to design the cam profile. For low-speed cams, a graphical method and manual machining are adequate. For both graphical and analytical approaches, the inverted method is used to determine the cam geometry.
1.3 1) A Graphical Design Method disc cam with flat-faced follower (a). start at the minimum follower displacement (b). rotate follower about the cam in the opposite direction to the cam rotation (c). move the follower radially outward to the specified position (d). draw the cam tangent to the

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• Spring '10
• dinc
• Milling machine, Radius of curvature, cam profile

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