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1、Choosing ViewsChoosing Views 零件图的视图选择零件图的视图选择Selecting the front view选择主视图Selecting other views 选择其他视图选择其他视图 请点击相应标题显示其内容请点击相应标题显示其内容Principle of Selection Principle of Selection ViewsViews视图选择原则视图选择原则 1. Selecting the front view 选择主视图选择主视图（1） Form features 形状特征 The front view should reflect the mai
2、n shapes and relative positions among parts, as much as possible.主视图要较多地反映出零件各部分的形状和它们之间的相 对位置。请点击鼠标左键显示后面内容请点击鼠标左键显示后面内容（2）Installation site 安放位置 It refers to machining or working position.安放位置即零件的加工位置或工作位置。2. Selecting other views 选择其他视图选择其他视图Sections not clearly conveyed in the front view should
3、be shown in other Sections not clearly conveyed in the front view should be shown in other views. Chosen views should convey key features and avoid repetition. views. Chosen views should convey key features and avoid repetition.主视图中没有表达清楚的部分，要用其他视图表示。所选择的视图应有其重点表达内容，并尽量避免重复。请点击鼠标左键显示后面内容请点击鼠标左键显示后面内
4、容Principle of Selection Principle of Selection ViewsViews视图选择原则视图选择原则 In short, views are selected according to their purposes. They should In short, views are selected according to their purposes. They should clearly depict the part, and provide as much information as possible. Use clearly depict t
5、he part, and provide as much information as possible. Use an adequate number of views to facilitate comprehension.an adequate number of views to facilitate comprehension.总之，选择视图要目的明确，重点突出，使所选视图表达方案 完整、清晰，数目恰当，做到看图方便，作图简便。本 小 节 结 束谢谢您的认真学习！谢谢您的认真学习！退出退出前一页前一页Choosing the front view of the bracket选择选择
6、支架支架主视图主视图Bracket 支架支架Projection A AA A向投影向投影Projection BB B向投影向投影请点击鼠标左键显示后面内容请点击鼠标左键显示后面内容A AB BThe front view The front view of the of the bracketbracket thoroughly thoroughly reflects the reflects the structures and structures and relative relative positions of positions of the various the vario
7、us holes.holes. 较好地表达了较好地表达了 各种不同结构各种不同结构 的孔及其相对的孔及其相对 位置关系位置关系Principle of Selection Principle of Selection ViewsViews视图选择原则视图选择原则 Machining position of a flangeMachining position of a flange 法兰盘在车床上用卡盘夹持加工法兰盘在车床上用卡盘夹持加工Machining position of a shaftMachining position of a shaft 轴在车床上用顶尖夹持加工轴在车床上用顶尖
8、夹持加工请请 点点 击击 鼠鼠 标标 左左 键键 显显 示示 后后 面面 内内 容容Principle of Selection Principle of Selection ViewsViews视图选择原则视图选择原则 Selecting the front viewSelecting the front view In order to facilitate comprehension when In order to facilitate comprehension when producing, the front view of the transmission shaft, han
9、d wheel and other producing, the front view of the transmission shaft, hand wheel and other parts should be placed in accordance with their machining positions.parts should be placed in accordance with their machining positions. 为使生产时便于看图，传动轴、手轮、盘状等零件的主视图按其在车床上为使生产时便于看图，传动轴、手轮、盘状等零件的主视图按其在车床上 加工时的位置
10、摆放。加工时的位置摆放。FinialFinial 顶尖顶尖Choosing other views of the bracket选择选择支架支架其他视图其他视图Bracket 支架支架请请 点点 击击 鼠鼠 标标 左左 键键 显显 示示 后后 面面 内内 容容Principle of Selection Principle of Selection ViewsViews视图选择原则视图选择原则 Project 1 Project 1 表达方案表达方案1 1Project 2Project 2 表达方案表达方案2 2This project use an adequate number of T
11、his project use an adequate number of views to facilitate comprehensionviews to facilitate comprehension. .此方案较佳此方案较佳，数目恰当数目恰当Principle of Selection Principle of Selection ViewsViews视图选择原则视图选择原则 请点击鼠标左键显示后面内容请点击鼠标左键显示后面内容C CS SB BBoxBox 箱体箱体Views for box of worm wheel Views for box of worm wheel ret
12、arderretarder蜗轮减速箱零件表达蜗轮减速箱零件表达Choosing the front view of box选择选择箱体箱体主视图主视图D DB BC C B B C CD DD D A A A A A A Valve bodyValve body 阀体阀体Project 1 Project 1 表达方案表达方案1 1Project 2Project 2 表达方案表达方案2 2 请点击鼠标左键显示后面内容请点击鼠标左键显示后面内容Principle of Selection Principle of Selection ViewsViews视图选择原则视图选择原则 This pr
13、oject use an adequate number of This project use an adequate number of views to facilitate comprehensionviews to facilitate comprehension. .此方案较佳此方案较佳，作图简便，易于理解作图简便，易于理解在图片上点击鼠标左键可以在图片上点击鼠标左键可以“暂停暂停”或再次或再次“播放播放”在图片上点击鼠标左键可以在图片上点击鼠标左键可以“暂停暂停”或再次或再次“播放播放”在图片上点击鼠标左键可以在图片上点击鼠标左键可以“暂停暂停”或再次或再次“播放播放”在图片上点击鼠标左键可以在图片上点击鼠标左键可以“暂停暂停”或再次或再次“播放播放”
