QC五检验标准.doc

QC技能手册目录第一章、识图技能第一节、工程识图··························································2第二节、形状和位置公差····················································5第二章、部分量规仪器的使用第一节、要求精度与量规仪器················································10第二节、游标卡尺的使用····················································11第三节、高度规的使用······················································12第四节、分厘卡的使用······················································13第五节、百分表的使用······················································16第六节、平台的使用························································18第七节、万能角度尺的使用··················································18第八节、直角尺的使用······················································22第九节、V型块的使用·······················································23第十节、牙规的使用························································23第十一节、扭力计的使用····················································24第十二节、投影仪的使用····················································24检验标准第一节、检验方法··························································26第二节、金属件及其加工品质标准············································27第三节、包装材料品质标准··················································28第四章、检验方法第一节、披锋的检验方法····················································29第二节、直线度的检验方法··················································30第三节、平面度的检验方法··················································31第四节、平行度的检验方法··················································33第五节、垂直度的检验方法··················································35第六节、同轴度的检验方法··················································36第七节、倾斜度的检验方法··················································38QC技能手册识图技能第一节、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。投影面上的投影与视图,在本质上是相同的。工件在三个基本投影面上所得的三视图分别称为:主视图:由前向后投影,在V面上所得的视图。如图1-1所示俯视图:由上向下投影,在H面上所得的视图。如图1-1所示左视图:由左向右投影,在W面上所得的视图