从GB/T1182一2018辅助要素框格探究几何公差带的方向特征

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Exploring the Directional Characteristics of Geometric Tolerance Zones fromtheAuxiliary ToleranceFramein GB/T1182-2018

LIYuBIAN Pingyan*ZHAO MingliZHANG ChangjuanWEI Shaoliang （SchoolofMechanical andPowerEngineering，HenanPolytechnicUniversity）

Abstract：Thedirectionalcharacteristicsof geometric toleranceZones and thedirectionaltolerancezones have always benaconfusing issue for personnel in theindustrydue to their similar wording.This paper deeply explores the conceptual differencesbetweenthetwoandanalyzes theiractualroles ingeometric tolerancecontrol.Itfurtherclarifies thediferences interminologybetweenthetwobyexaminingthefunctionsofthedirectionalplaneanddirectionelement auxiliarygridinGB/T82-2ol8.Finalyitilustratesthesignificanceofdirectionalcharacteristicsandtheapplication oftheauxiliary frame through two examplesofconicalsealing.Thepaper helpsengineering and technical personnel to better understand the directionalcharacteristics of geometric tolerancesand accurately applyrelevant standards.

Keywords：gomettleaneediretioalaracterstic;ectioaltoleracoeuilaytoleracefre;G8

0 引言

在机械工程领域，几何公差是确保零件互换性和功能性的关键要素，其准确表达和理解对于设计、制造和检测环节均至关重要。（剩余3264字）