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首页 ASME Y14.5M-1994 中文版 确定尺寸及规定公差

ASME Y14.5M-1994 中文版 确定尺寸及规定公差.pdf

ASME Y14.5M-1994 中文版 确定尺寸及规定公差

xiaoliu
2010-01-31 0人阅读 举报 0 0 暂无简介

简介:本文档为《ASME Y14.5M-1994 中文版 确定尺寸及规定公差pdf》,可适用于考试题库领域

ASME国家标准工程制图及相关文件操作规范确定尺寸及规定公差ASMEYMANSIASMEYM(R)修订版美国机械工程师协会免费标准下载网(wwwfreebznet)免费标准下载网(wwwfreebznet)无需注册即可下载II发布日期:年月日当本协会批准发布新版本时本标准将被修订。将没有发布本标准新版本要求的附录或书面说明。ASME是美国机械工程师协会的注册商标。本标准是在满足美国国家标准的合格程序下开发出来的。认证本标准的委员会经过平衡以确保有能力和有兴趣的个体有机会参加标准的制定。提出的标准向大众公开以对此进行评论这样就提供了一个得到工厂、学术机构、管理机构以及公众反馈的机会。ASME不“批准”、“评价”或“签署”任何条款、解释、所有权或行为。ASME对那些宣称在本文件中提到的任何条款相关的任何专利权的有效性的事项不采取任何立场也不保证任何人利用标准侵犯专利的责任也不假想这样的倾向。标准的使用者被明确告知对任何这样专利权的有效性的判断违反这样权力的风险完全是他们自己的责任。由于工业界相关的联邦机构代表(们)或人员(们)的参与不能理解为政府或工业界对本标准的认可。ASME仅对按照ASME程序和政策公布解释负责这样就排除了志愿者个人进行解释。未经出版商的书面授权不得以任何形式对本标准的任何部分进行复制无论以电子版或其他任何形式美国机械工程学会ThreeParkAvenue,NewYork,NY版权©美国机械工程学会版权所有印刷于USA免费标准下载网(wwwfreebznet)免费标准下载网(wwwfreebznet)无需注册即可下载III目录应用范围、定义以及通用确定尺寸·························································································概述····························································································································参考文献····················································································································定义····························································································································基本规则····················································································································测量单位·····················································································································尺寸标注类型·············································································································尺寸标注的应用··········································································································确定特征尺寸··············································································································特征的定位··················································································································一般的公差确定及相关规则·····································································································通则····························································································································直接标注公差的方法···································································································公差表达式··················································································································极限的解释··················································································································单一极限····················································································································公差累积····················································································································尺寸极限····················································································································RFS、MMC、LMC的适用性··························································································螺纹····························································································································齿轮和齿条··················································································································材料综合状态·············································································································角度表面····················································································································锥度····························································································································平锥····························································································································半径····························································································································统计公差····················································································································符号表示法······························································································································概述····························································································································用注解补充符号··········································································································符号结构····················································································································几何公差符号··············································································································特征控制框位置··········································································································公差带定义··················································································································列表公差····················································································································基准参考·································································································································概述····························································································································固定部分····················································································································基准特征····················································································································免费标准下载网(wwwfreebznet)免费标准下载网(wwwfreebznet)无需注册即可下载IV在次序上详细说明基准特征·······················································································确定基准····················································································································基准目标····················································································································位置公差·································································································································概述····························································································································位置公差····················································································································位置公差的基本解释···································································································特征模式位置··············································································································突出公差带··················································································································不平行孔····················································································································扩孔····························································································································特征一端的较近控制··································································································特征的双向位置公差··································································································非圆形特征··················································································································共轴控制·····················································································································同心····························································································································对称关系的位置公差··································································································对称标注公差以控制特征的相对或相关元素的中间点·················································球形特征····················································································································形状、外形、定位和跳动公差··································································································概述····························································································································形态及方位控制··········································································································指定形态和方位公差···································································································形态公差····················································································································外形控制····················································································································方位公差····················································································································跳动····························································································································单体状态变量·············································································································附录····················································································································································A主要改变和改进·······················································································································A概要····························································································································A图表····························································································································A第节范围定义一般尺寸标注·········································································A第节一般公差标注及相关原则···············································································A第节符号表示法······································································································A第节基准参考·········································································································A第节位置公差·········································································································A第节形状外形公差方向和跳动·········································································A附录A规则变动和改善······························································································A附录B位置公差的公式······························································································A附录C形式比例和符号比较··················································································免费标准下载网(wwwfreebznet)免费标准下载网(wwwfreebznet)无需注册即可下载VA附录D旧规则·············································································································A附录几何控制的决定图解························································································B位置公差的公式·······················································································································B综述····························································································································B公式符号·····················································································································B浮动紧固件的情况·····································································································B用突出公差带的固定紧固件························································································B不用突出公差带时非平面度条款·············································································B同轴特性·····················································································································B公差度与配合··············································································································C形式比例和符号的对比············································································································C概述····························································································································C形式和比例··················································································································C对比····························································································································D前规则·····································································································································D概述····························································································································D尺寸特征的定义··········································································································DRFS、MMC和LMC的应用························································································D切线半径·····················································································································D基准特征符号··············································································································D投影公差带··················································································································E几何控制的决定图表··············································································································E目的····························································································································E功能要求·····················································································································E参照标准·····················································································································E几何控制·····················································································································E选择其他控制··············································································································E修改器的使用··············································································································E基准····························································································································免费标准下载网(wwwfreebznet)免费标准下载网(wwwfreebznet)无需注册即可下载工程制图及相关文件操作规范确定尺寸及规定公差应用范围、定义以及通用确定尺寸概述本标准建立了用于工程制图及相关文件的陈述和解释尺寸确定、规定公差以及相关要求的统一的操作规范。关于本标准中许多原理的数学解释见ASMEYM。不包括建筑和市政工程以及焊接符号等特有的操作规范。第节概述。本节建立了用于坐标以及几何尺寸确定方法的通用尺寸确定的定义、基本规则和操作规范。确定公差的操作规范见第节至第节。单位。本标准给出了国际单位制(SI)因为国际单位制(SI)将取代工程图上规定的美国惯用单位(US)。惯用单位已同样使用与所建立的规则不矛盾。本标准的参考说明。基于本标准的工程图应在图上注明或在图上的参考说明文件中注明。本标准的参考说明应在ASMEYM中注明。图。本标准中的图旨在以图界的方式帮助使用者理解文字中描述的尺寸确定和公差确定的原理和方法。缺少图解既不可怀疑工程图的可用性也不可作为拒绝工程图的根据。在某些情况下图示给出了所强调部分额外的细节。在另外情况下图示故意不完整。只给出尺寸和公差的数值的图示。注释:为帮助本标准的使用者一列有关图示的图在每一张图的右下角给出。也可能不是总包括这些图。没有这些图不能作为假设不可用的理由。注释。这里以大写字母书写的注释出现在完工图纸上。小写的注释只用作解释不出现在图纸上。测量参考。本标准不准备作为测量标准。任何测量参考值作为解释的目的。符号。采用如附录C中图C所示的表明尺寸要求的符号不排除在符号不合适之处使用等效的术语或缩写。参考文献当与本标准有关的美国国家标准被美国国家标准局批准的修订版取代时应使用修订版。美国国家标准ANSIB首选公制极限与配合ANSIB机加工锥度自锁及大锥度系列ANSIASMEB表面纹理(表面粗糙度、波动度以及覆盖)ANSIB不圆度的测量ANSIB渐开线齿及其检验英寸版本ANSIBM米制模数渐开线齿ANSIASMEB滚花ANSIBM麻花钻ANSIY图纸纸张尺寸及格式ASMEYM直线法则及字体SAE标准可从美国汽车工程师协会获取地址:WarrendaleDrive,PAwwwbzfxwcom免费标准下载网(wwwfreebznet)免费标准下载网(wwwfreebznet)无需注册即可下载ASMEYM确定尺寸和公差规则的数学定义ANSIY螺纹的表示ANSIYaM螺纹的表示(米制补充)ANSIY齿轮的作图标准第部分:直齿齿轮、螺旋齿轮、双螺旋齿轮、齿条ANSIY齿轮及渐开线的作图标准第部分:斜齿齿轮、准双曲面齿轮ASMEYM铸件和锻件ASMEY表面纹理符号ANSIIEEE米制规范附加文献(没有引用)ANSIASMEB统一标准英制螺纹的量具及测量ANSIBM(R)工件的检验ASMEY缩写用于图和文本ASMEYM多视图和截面视图定义以下术语被定义用于本标准。此外本标准中斜体术语的定义在各章节中描述了它们的应用。在索引中标注了其在文中的位置。内边界(Boundary,Inner)。由最小特征(内部特征为MMC外部特征为LMC)减去规定的几何公差和偏离其指定材料条件的附加几何公差(如果应用)而形成的最差的边界(即位置)。见图至。外边界(Boundary,Outer)。由最大特征(内部特征为LMC外部特征为MMC)加上几何公差和偏离其指定材料条件的附加几何公差(如果应用)而形成的最差的边界(即位置)。见图至。IEEE标准可从电工电子工程师协会服务中心获取地址:HoesLane,Piscataway,NJ。基准(Datum)。源自指定的基准特征真实几何对称的理论精确点、轴或面。基准是建立零件特征位置或几何特征的基础。基准特征(DatumFeature)。零件的实际特征用于建立基准。基准特征模拟器(DatumFeatureSimulator)。接近基准特征的精确特征表面(例如平面表面、检验表面或芯轴)用于建立模拟基准。注释:在生产以及检验过程中模拟基准用来作为基准的实际体现。模拟基准(Datum,Simulated)。通过处理或检验设备建立的点、轴或平面例如以下的模拟器:平面表面、检验表面或芯轴见和。基准目标(DatumTarget)。在用于建立基准的零件上指定的点、线或区域。尺寸(Dimension)。用适当的测量单位表述的数值用来定义零件或零件特征的大小、位置、几何特征或表面构造。基本尺寸(DimensionBasic)。用来描述特征或基准目标的理论精确尺寸、轮廓、方位或位置的数值。见图。基本尺寸基于其它尺寸用公差确立的允许变化量用注释或特征控制框注明。见图、和。参考尺寸(DimensionReference)。通常没有公差的尺寸只用于信息目的。参考尺寸是尺寸的重复或来自图纸或相关图纸标注的其他值。它被看作附属信息不控制生产或检验操作。见图和。实际配合包络线面(Envelope,ActualMating)。这一术语按照特征类型免费标准下载网(wwwfreebznet)免费标准下载网(wwwfreebznet)无需注册即可下载定义如下:(a)外部特征。最小尺寸的类似完美特征相似物可将该特征包围恰好在其最高点与表面接触。例如完美特征的最小圆柱或者相距最近的完美特征的两个平行平面恰好在其最高点与表面接触。对于由位置公差控制的特征实际配合包络线面由相对于合适的基准定位例如垂直于主要基准面。(b)内部特征。最大尺寸的类似完美特征相似物可将该特征内切恰好在其最高点与表面接触。例如完美特征的最大圆柱或者相距最大的完美特征的两个平行平面恰好在其最高点与表面接触。对于由位置公差控制的特征实际配合包络线面由相对于合适的基准定位例如垂直于主要基准面。特征(Feature)。应用于零件物质部分的一般术语例如表面、销、接头、孔、槽。轴的特征(Feature,AxisOf)。与指定特征真实几何对称轴相一致的直线。中心面特征(Feature,CenterplaneOf)。与指定特征真实几何对称中心面相一致的面。源自中间面特征(Feature,DerivedMedianplaneOf)。穿过由特征限定界限的所有线段中心的不完整面(抽象的)。这些线段垂直于实际配合包络线面。源自中间线特征(Feature,DerivedMedianLineOf)。穿过特征横截面的中心点的不完整线(抽象的)。这些横截面的中心点垂直于实际配合包络线面的轴。横截面的中心点按照ANSIB确定。尺寸特征(FeatureOfSize)。与大小尺寸相关的一个圆柱面或球面或者一组个相反元素或相反平行平面。完全指示器运动(FullIndicatorMovementFIM)。恰当地用于测量表面变动时指示器的全部运动。最小材料状态(LeastMaterialConditionLMC)。在指定尺寸极限内包含最小材料量的尺寸特征状态例如最大孔直径最小轴直径。最大材料状态(MaximumMaterialConditionMMC)。在指定尺寸极限内包含最大材料量的尺寸特征状态例如最小孔直径最大轴直径。相切面(Plane,Tangent)。源自指定特征面的真实几何对称的理论精确面。不考虑特征尺寸(RegardlessOfFeatureSizeRFS)。该术语用于说明在尺寸公差范围内几何公差或基准参考是用于任何特征尺寸增量。总合状态(ResultantCondition)。由尺寸特征的指定MMC或LMC材料状态、该材料状态的几何公差、尺寸公差、以及源自特征偏离指定材料状态的附加几何公差等综合影响而产生的变化范围。见图至。实际尺寸(Size,Actual)。关于生产特征的一般术语。包括实际配合尺寸和实际局部尺寸。实际局部尺寸(Size,ActualLocal)。特征的任意横截面的任意单个距离的值。实际配合尺寸(Size,ActualMating)。实际配合包络面线的尺寸值。极限尺寸(Size,LimitsOf)。指定的最大和最小尺寸。见。wwwbzfxwcom免费标准下载网(wwwfreebznet)免费标准下载网(wwwfreebznet)无需注册即可下载名义尺寸(Size,NominalOf)。用于核对目的的名称。综合状态尺寸(Size,ResultantCondition)。综合状态限定的实际尺寸。实际状态尺寸(Size,LResultantCondition)。实际状态限定的实际尺寸。公差(Tolerance)。指定尺寸允许变化的总量。公差是最大极限与最小极限之差。双边公差(Tolerance,Bilateral)。允许在指定尺寸个方向变化的公差。几何公差(Tolerance,Geometric)。适用于控制形状、轮廓、定位、位置、振摆等类别的通用术语。

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ASME Y14.5M-1994 中文版 确定尺寸及规定公差

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