In the paper numerical methods are developed to enable a cam copy grinding machine to be analysed. A method for computing the former profile necessary to produce a cam specified by a required valve motion is described.
The effects of grinding wheel wear and of machine setting errors on the profile of a production cam are investigated. Use is made of the dynamic analysis of Barkan in predicting the influence of these profile errors on the dynamics of a valve train.
Finally, the possibility of changing the diameter of the former roller to compensate for grinding wheel wear is considered.
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References
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‘Producing high accuracy cams’, Machinery89, 13th July 1956, 100, and 20th July 1956, 156.
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WrightJ. P.‘Non-cylindrical contours: How you can grind them’, American Machinist Special Report, 17th Sept. 1954, 1672–77.
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WrightJ. P.‘Non-cylindrical contours: How you can grind them’, American Machinist Special Report, 17th Sept. 1954, 1666–69.
