Cam Design Handbook by Harold Rothbart

By Harold Rothbart

The cam, used to translate rotary movement into linear movement, is an essential component of many sessions of machines, akin to printing presses, fabric equipment, gear-cutting machines, and screw machines. Emphasizing computer-aided layout and production concepts, in addition to refined numerical keep an eye on equipment, this guide permits engineers and technicians to make use of innovative layout instruments. it's going to reduce time spent at the strategy planning stage and bring up productiveness and laptop accuracy.

* Cam layout, manufacture, and dynamics of cams
* the most recent computer-aided layout and production suggestions
* New cam mechanisms together with robot and prosthetic functions

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Sample text

Acceleration values are related to the system inertia forces in which the maximum acceleration establishes the maximum inertia forces. • The shape of the follower acceleration curve is of critical concern for the design of moderate- to high-speed machines. From it, analysis can be made for cam-follower system shock, noise, wear, and vibration. • The acceleration curve shall have no discontinuities where it blends with the dwell action of the motion. • Acceleration values at each point are related to the radius of curvature of the cam profile, which in turn relates to the surface stresses and wear.

Sample Cam drawing with cam contour and tape check. 30. B-12345 Sample Cam with 3D Wire Frame representation of cam contour (Courtesy Commercial Cam Co. Inc. Wheeling, Illinois). • In troubleshooting cam system performance, the first step of investigation is to measure all the related action members of the machine before initiating elaborate theoretical studies and changes. • Cam-follower alignment and backlash (static and dynamic) should be controlled to keep surface stresses as small as possible.

However, we note that at the maximum rise point neither the parabolic nor the simple harmonic curve has any abrupt change. 16. DRRD cam application of basic curves.

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