浅析机加工工件定位基准的正确选择  

Analysis of Choice of Correct Locating Ddatum in the Machining

作　　者：董菊明[1] 余贵[1] 

机构地区：[1]鄂东职业技术学院,湖北黄冈438000

出　　处：《装备制造技术》2012年第3期54-55,66,共3页Equipment Manufacturing Technology

摘　　要：工件在机床上或者夹具中时,用作确定位置的基准称为定位基准,定位基准分粗基准和精基准。定位基准的合理选择直接影响着机械加工的质量与稳定性。When parts in the machine tool or fixture,used as a benchmark to determine the location known as the locating datum.Locating datum points crude benchmarks and refined benchmarks.A reasonable choice for locating datum has a direct impact on the quality and stability of the machining.

关 键 词：定位基准 粗基准 精基准 

分 类 号：TH161[机械工程—机械制造及自动化]