The cam design method developed by the Japanese
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It is common to find that cam mechanisms are widely used in equipment from Japan and Germany, while domestic equipment seems to avoid using them; they use them wherever it is possible, whereas in China, efforts are made to avoid their use whenever possible. By chance, I had the opportunity to examine cam mechanisms designed by Japanese engineers, and the first step they take is to create timing diagrams to verify the time and acceleration, as well as the maximum pressure angle and minimum radius of curvature； The timing diagram is then converted into a cam diagram, which includes information such as division angle allocation, return stroke data, and the origin ； Then, the final cam profile trajectory is designed based on the cam diagram.
Please don’t take it personally, OP, hehe! I’m really a complete novice when it comes to cam mechanisms, but I think such mechanisms must have many uses. I don’t know why it is avoided domestically; maybe it’s because the capability isn’t there. It seems that the process used by Japan to design this structure was quite meticulous, as you mentioned.