QC技能手册 - 必威体育精装版完整版.doc

目录

第一章、识图技能

第一节、工程识图··························································2

第二节、尺寸的基本公差····················································6

第三节、形状和位置公差····················································7

第二章、部分量规仪器的使用

第一节、要求精度与量规仪器················································11

第二节、游标卡尺的使用····················································12

第三节、高度规的使用······················································13

第四节、分厘卡的使用······················································14

第五节、百分表的使用······················································17

第六节、平台的使用························································19

第七节、万能角度尺的使用··················································19

第八节、直角尺的使用······················································24

第九节、V型块的使用·······················································24

第十节、牙规的使用························································24

第十一节、扭力计的使用····················································25

第十二节、投影仪的使用····················································25

检验标准

第一节、检验方法··························································27

第二节、金属件及其加工品质标准············································27

第三节、喷油品质标准······················································31

第四节、包装材料品质标准··················································34

第四章、检验方法

第一节、披锋的检验方法····················································35

第二节、直线度的检验方法··················································37

第三节、平面度的检验方法··················································38

第四节、平行度的检验方法··················································39

第五节、垂直度的检验方法··················································41

第六节、同轴度的检验方法··················································42

识图技能

第一节、工程识图

1、体的投影

体的投影，实质上构成该体的所有面的投影总和。运用点、线、面投影规律，就可以分析体的投影（如下图1-1）。

平面ABCD和平面EFGH都是水平面，平面AEFB和DHGC都是正垂面，这四个正面投影都积聚成直线。前后两个平面BFGC和AEHD分别为侧垂面和正平面，其正面投影重合线框b’f’g’c’(a’e’h’d’)。在水平投影中abcd和efgh反映实形，abfe,dcgh和bfgc具有类似性，aehd则积聚为一直线。

图1-1：体的三面投影图1-2：体的三视图

2、投影与三视图

视图：就是将产品向投影面投影所得的图形。