文档介绍：目 录
第一章、识图技能
第一节、工程识图···························································· 2
第二节、尺寸基本公差··················································6
第三节、形状和位置公差··················································7
第二章、某些量规仪器使用
第一节、规定精度与量规仪器···········································11
第二节、游标卡尺使用··················································12
第三节、高度规使用······················································13
第四节、分厘卡使用······················································14
第五节、百分表使用······················································17
第六节、平台使用··························································19
第七节、万能角度尺使用················································19
第八节、直角尺使用······················································ 24
第九节、V型块使用························································24
第十节、牙规使用·························································· 24
第十一节、扭力计使用····················································25
第十二节、投影仪使用····················································25
检查原则
第一节、检查办法································································27
第二节、金属件及其加工品质原则·······································27
第三节、喷油品质原则······················································ 31
第四节、包装材料品质原则··················································34
第四章、检查办法
第一节、披锋检查办法···················································· 35
第二节、直线度检查办法··················································37
第三节、平面度检查办法··················································38
第四节、平行度检查办法··················································39
第五节、垂直度检查办法··················································41
第六节、同轴度检查办法··················································42
识图技能
第一节、工程识图
1、体投影
体投影，实质上构成该体所有面投影总和。运用点、线、面投影规律，就可以分析体投影（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。先后两个平面BFGC和AEHD分别为侧垂面和正平面，其正面投影重叠线框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具备类似性，aehd则积聚为始终线。
图1-1：体三面投影 图1-2：体三视图
2、投影与三视图
视