标准摘要
[中文适用范围]: ISO 14405的这一部分建立了角度尺寸的默认规范算子,并为角度尺寸的特征定义了许多特殊规范算子:圆锥体(截头,即平截头体,或不截头),楔形(截头或不截头),两条相对的直线(楔形/截头楔形与垂直于楔形/截头楔形两个平面的相交直线的平面的交线、圆锥体/平截头体与包含圆锥体/平截头体旋转轴的平面的交线)。 参见图 1 和图 2。 ISO 14405 的这一部分还定义了这些角度尺寸的规格修饰符和图纸指示。 ISO 14405 的这一部分涵盖以下角度尺寸: ——局部角度尺寸: ——两条线之间的角度尺寸; ——部分角尺寸; ——全局角尺寸: ——直接全局角尺寸: ——最小二乘角尺寸; ——极小极大角尺寸; ——排序角度尺寸/间接全局角度尺寸: ——最大角度尺寸; ——最小角度尺寸; ——平均角尺寸; ——角度尺寸范围; ——中等范围的角度尺寸; ——中位角尺寸; ——角度尺寸的标准偏差。 ISO 14405 的这一部分定义了角度尺寸公差的含义,表示为 — + 和/或 - 极限偏差,例如 0°/-0,5°,或 — 用尺寸上限 (ULS) 和/或下限表示尺寸 (LLS),例如最大 35°。 或最小 15°、34°/36°、 — 带或不带修饰符。 ISO 14405 的这一部分提供了一组工具来表达几种类型的角度尺寸特征。 它没有给出有关功能或用途与角度尺寸特性之间关系的任何信息。 [外文原描述]: This part of ISO 14405 establishes the default specification operator for angular size and defines a number of special specification operators for features of angular size: cone (truncated, i.e. frustum, or not), wedge (truncated or not), two opposite straight lines (intersection of a wedge/truncated wedge and a plane perpendicular to the intersection straight line of the two planes of the wedge/truncated wedge, intersection of a cone/frustum and a plane containing the axis of revolution of the cone/frustum). See Figure 1 and Figure 2. This part of ISO 14405 also defines the specification modifiers and the drawing indications for these angular sizes. This part of ISO 14405 covers the following angular sizes: — local angular size: — angular size between two lines; — portion angular size; — global angular size: — direct global angular size: — least squares angular size; — minimax angular size; — rank order angular size/indirect global angular size: — maximum angular size; — minimum angular size; — average angular size; — range of angular sizes; — mid-range angular size; — median angular size; — standard deviation of angular size. This part of ISO 14405 defines the meaning of tolerances of angular sizes indicated as — + and/or - limit deviations, e.g. 0°/-0,5°, or — indicated with upper limit of size (ULS) and/or lower limit of size (LLS), e.g. 35° max. or 15° min., 34°/36°, — with or without modifiers. This part of ISO 14405 provides a set of tools to express several types of angular size characteristics. It does not give any information on the relationship between a function or a use and an angular size characteristic.
英文名称Geometrical product specifications (GPS) — Dimensional tolerancing — Part 3: Angular sizes