机械加工检验标准及方法

机械加工检验标准及方法 TOC \o "1-3" \h \z \u HYPERLINK \l "_Toc334626152" 一. 目的： PAGEREF _Toc334626152 \h 3 H

机械加工检验标准及方法 ........................................................................................................................ 3 一.目的： . ......................................................................................................................... 3 二范围： ........................................................................................................ 3 三.规范性引用文件 ............................................................................................................ 3 四.尺寸检验原则 1 .................................................................................................................................. 3 ．基本原则： 2 .......................................................................................................................... 3 ．最小变形原则： 3 ...................................................................................................................... 4 ．最短尺寸链原则： 4 .................................................................................................................................. 4 ．封闭原则： 5 .......................................................................................................................... 4 ．基准统一原则： 6 ...................................................................................................................................... 4 ．其他规定 .................................................................................................... 4 五.检验对环境的要求 1 .............................................................................................................................................. 4 ．温度 2 .............................................................................................................................................. 4 ．湿度 3 .......................................................................................................................................... 4 ．清洁度 4 .............................................................................................................................................. 4 ．振动 5 .............................................................................................................................................. 5 ．电压 .................................................................................................................... 5 六.外观检验 1 ...................................................................................................................................... 5 ．检验方法 2 ...................................................................................................................................... 5 ．检验目距 3 ...................................................................................................................................... 5 ．检测光源 4 ...................................................................................................................................... 5 ．检测时间 5 .................................................................................................................................. 5 ．倒角、倒圆 6 .................................................................................................................................. 5 ．批锋、毛刺 7 .............................................................................................................................................. 5 ．伤痕 8 .................................................................................................................................. 5 ．刀纹、振纹 9 .............................................................................................. 6 ．凹坑、凸起、缺料、多料、台阶 10 ............................................................................................................................................ 6 ．污渍 11 .................................................................................................................... 6 ．砂孔、杂物、裂纹 12 .................................................................................................................................... 6 ．防护包装 .................................................................................................... 6 七.表面粗糙度的检验 1 ...................................................................................................................................... 6 ．基本要求 2 .................................................................................................................................. 6 ．检验方法： 3 ...................................................................................................................................... 6 ．测量方向 4. ......................................................................................................................................... 6 测量部位 5 ...................................................................................................................................... 7 ．取样长度 ................................................................................ 7 八.线性尺寸和角度尺寸公差要求 1 ...................................................................................................................................... 7 ．基本要求 2 ........................................................................................................................ 7 线性尺寸未注公差 ............................................................................................ 7 九．形状和位置公差的检验 1 ...................................................................................................................................... 7 ．基本要求 3 ...................................................................................................................................... 8 ．检测方法 .................................................................................................................. 8 十.螺纹的检验