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公差與互換性在三維軟件中的應用

信息編號:63933566 發布時間:2025/8/13 18:11:43

SolidWorks 的公差標注直接影響零件互換性。線性尺寸公差按精度等級設置:IT10 級用于一般配合(如支架安裝孔),IT7 級適用于軸承配合(如軸頸 φ50h7),通過 “公差 / 精度” 下拉菜單可快速調用 GB/T 1800.2 標準值。?
形位公差標注需結合功能需求:導軌的直線度公差設為 0.02mm/1000mm,齒輪軸的圓跳動公差控制在 0.01mm 內。在 “形位公差” 對話框中,基準符號需與零件的定位面關聯,如箱體的底面設為基準 A,側面設為基準 B。?
表面粗糙度標注通過 “注解” 工具欄插入,Ra 值選擇需匹配加工工藝:銑削表面取 Ra3.2,磨削表面用 Ra0.8。將常用公差組合保存為 “注解庫”,如 “φ30H7(+0.021/0)”,拖放即可快速標注,確保同批零件的互換性誤差小于 0.03mm。
以下是“公差與互換性在三維軟件中的應用”信息發布人聯系方式:

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