电梯专业英语课件07---工程制图PPT格式课件下载.pptx

1、纵横比，宽高比爆炸图组装/拆卸术语标题栏投影,EngineerDrawing（工程制图）,orthographic projection正投影,three-view drawings三视图,Front view主视图,Side view侧视图,Top view俯视图,RIGHT VIEW 右视图,Basic/principle view 基本视图,EngineerDrawing（工程制图）,EngineerDrawing（工程制图）,EngineerDrawingThe following contents need to be included in a detail drawing（零件图

2、一般应包括下列内容）,（工程制图）A group of views（一组视图）,配配合合尺尺寸寸,Technical,requ配ir合e尺m寸ent,（技术要求）,Title block（标题栏）,Integrated dimensions（完整尺寸）,EngineerDrawing（工程制图）,Drawing Methods 绘制方式,EngineerDrawing（工程制图）,Drawing Methods 绘制方式,EngineerDrawing（工程制图）,Almost all mechanical drawings communicate not only geometry（shap

3、e and location）but also dimensions and tolerances for those characteristics.几乎所有的机械制图表达的不仅是几何体（形状和位置），还包括这些特征的尺寸和公差。What kind of information can we get from a mechanical drawing usually?,EngineerDrawing（工程制图）,Standards and conventions for layout,line thickness,text size,symbols,view projections,desc

4、riptive geometry,dimensioning,and notation are used to create drawings that are布in局te的rp标r准et和ed规i范n,o线n条ly宽o度ne,文w字a大y.小,符号,视图投影,画 法几何,尺寸标注和注释以一种唯一的说明方式来解释图 样。,EngineerDrawing（工程制图）,A common drawing can hold many purpose and meanings,while an engineer drawing is intended to concisely and clearly co

5、mmunicate all needed specifications to普tr通an绘s图fo可rm能包an含i多de重a的in目to的p和h意ys思ic,a但l 工fo程rm制.图的意图是精准而清晰地传达全部所需的技术参数,将想法转化成 物质形态。,Sentence explanation（句型讲解）,“Make this part in accordance with the information indicated and to the dimension specifiedany unauthorized deviations or errors are your respons

6、ibility”.根据指定的信息和规定的尺寸制作此零件，任何非授权 的偏差或错误是你们的责任。,Sentence explanation（句型讲解）,It is meant to convey the importance of the complete and proper dimensioning of engineering drawings.Careless dimensioning can lead to increase production costs or outright waste.这是为了表达工程图纸完整并合理标注尺寸的重要性。粗心的标注将增加产品成本或彻底报废。,Sen

7、tence explanation（句型讲解）,An exploded view drawing is technical drawing of an object that shows the relationship or order of assembly of the various parts.爆炸图是一个物体的工程图，用来展示不同零件之间的 关系和装配次序。,Sentence explanation（句型讲解）,Cutaway illustrations avoid ambiguities with respect to spatial ordering,provide a sha

8、rp contrast between foreground and background objects,and facilitate a good understanding of spatial ordering.透视图说明避免了空间顺序的不确定性，提供了前景和 背景物体的鲜明比对，有助于空间顺序的理解。,Sentence explanation（句型讲解）,Compasses are used for drawing simple arcs andcircles and triangular rule used for drawing straight lines.,圆规用于绘制简单的

9、圆弧和圆，三角尺用于绘制直线。,Q&A（问答）,A sketch is a quickly executed freehand drawing that is intended as a finished work.is used for drawing simple arcs and circles.The term“cutaway drawing”was in use from 1930s.can show the intended assembly of mechanical or other parts.Title block is necessary for each drawing.6.Paper size of A3 is times of A1 paper.7.By robot is one method of engineer drawing.,Exercise Analysis（习题分析）,1.参考第111页“绘制方式”。D2.参考第105页最后一段。B3.参考第110页图7-10。C4.参考第102-106页工程制图简介。C5.参考第111页最后一段。A,Exercise Analysis（习题分析）,6.参考第110页第三段。B7.参考第110页第一段。B8.参考第108页倒数第二段。A9.参考第107页倒数第二段。C,感谢您的关注,