proe中渐开线圆柱直齿轮的创建
\u57fa\u4e8eProe\u6e10\u5f00\u7ebf\u5706\u67f1\u9f7f\u8f6e\u96f6\u4ef6\u5e93\u7684\u5efa\u7acb \u8fd9\u4e2a\u8bba\u6587\u600e\u4e48\u5199\uff1fhttp://www.zmenghan.com/ruanji/pro/%E5%9F%BA%E4%BA%8EPro_E%E7%9A%84%E6%B8%90%E5%BC%80%E7%BA%BF%E9%BD%BF%E8%BD%AE%E7%9A%84%E5%8F%82%E6%95%B0%E5%8C%96%E8%AE%BE%E8%AE%A1%E5%8F%8A%E8%BF%90%E5%8A%A8%E4%BB%BF%E7%9C%9F.pdf?type=detail&id=141
\u73b0\u6709\u7684\u8bba\u6587\u770b\u4e0b\uff0c
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如图示
参数化设计，用方程绘出渐开线，最后用混合切口
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