装配图的标注.ppt

1、Dimensioning and Specifications for Assembly Drawings 装配图的标注,Dimensioning 尺寸标注 Numbering 序号标注 Item block 明细栏 Technical requirements 技术要求,请点击相应标题显示其内容,Dimensioning 尺寸标注,2. External dimensions 外形尺寸,1. Characteristic and specification dimensions 特性尺寸,请点击鼠标左键显示后面内容,The dimensions that represent machine

2、specifications or service behaviors are the foundation on which users choose the right products, such as travel distances, calibers and threads. 表示机器规格或工作性能的尺寸,是用户选用产品的依据。如:行程、口径及螺纹等。,The dimensions that represent the general length, width, and height are useful for packing, distribution and transpo

3、rtation. 表示机器长、宽、高的总体尺寸，供装箱、存储和运输时参考。,Dimensioning 尺寸标注,1) The distance from the main axial cord to the datum clamp face. 主要轴线到安装基准面的距离。 2) The distance between the main parallel shafts. 主要平行轴之间的距离。 3) The fitting relationship that must be kept after mounting. 装配后两零件之间必须保证的配合关系等。,3. Fitting dimensio

4、ns 装配尺寸,请点击鼠标左键显示后面内容,That represent the tolerance between parts or subassemblies that have the following characteristics. 表示零、部件间有配合性能要求的配合尺寸及公差等。,Dimensioning 尺寸标注,4. Mounting dimensions 安装尺寸,5. Other dimensions 其他尺寸,请点击鼠标左键显示后面内容,That represent the dimensions required to mount the machine or suba

5、ssembly to its base or to another machine. 表示机器或部件安装在基底或其他机器上所需的尺寸。,That include important dimensions of major parts and limited dimensions of moving parts. 主体零件的重要尺寸及运动零件的极限尺寸等。,1) All parts and subassemblies in the assembly drawing must be numbered. 装配图中的所有零、部件都必须编写序号。 2) The same part in the same

6、 assembly drawing shall use the same number and be marked only once. 同一装配图中相同的零件应编写同一个序号，只注一次。 3) The part number in the assembly drawing shall coincide with that in the item block. One should first mark the number on the drawing to ensure the number sequence is in order and then fill in the item bl

7、ock. 装配图中的零件序号应与明细栏中的序号一致。为确保零件序号顺序排列，应先在图上编写序号，然后再填写明细栏。 4) The number shall be arranged clockwise or counterclockwise in the front view along the horizontal or vertical directions. If the number can not be sequenced continually on the drawing, one can arrange them in order along the horizontal or

8、vertical directions. 序号应按顺时针或逆时针方向排列整齐,若在整个图上无法连续时可只在水平或垂直方向顺次排列。,1. General specification 一般规定,Numbering 序号标注,1) Part numbers shall be marked on the horizontal line or inside or near the circle of the leader. The font size shall be one or two grades larger than the dimension number on the drawing.

9、零件序号应注写在指引线的水平线上或圆圈内,字号比图中的尺寸数字高大一号或二号。 2) A leader shall be drawn from the visible contour of the part or subassembly with a thin solid line. The end of the leader shall have a small dot. If it is not easy to draw a dot, one can point to the contour with an arrow. 指引线应从零、部件的可见轮廓线内用细实线引出，端部画一小圆点，也可用

10、箭头指向其轮廓线。 3) The leader cannot be intercrossed or parallel to the section lines. When necessary, a leader line may be formed by at most two pieces of line segments. 指引线不可相互交叉或与图中的剖面线平行，必要时可画成折线，但只可折一次。 4) A group of fasteners or parts with a clear fitting relationship can be labeled with a shared le

11、ader. 一组紧固件或装配关系清楚的零件组,可采用公共指引线。,Numbering 序号标注,2. Marking methods 标注方法,Item block is a table used to indicate the part number, code, name, specification, quantity, and material. 明细栏是说明零件序号、代号、名称、规格、数量、材料等内容的表格。,Item block 明细栏,The item block is generally drawn on top of the title block. Fill in the

12、number from the bottom to the top. If the top space is not enough, other portions can be moved to the left of the title block to fill in number continually from the bottom to the top. 明细栏一般画在标题栏的上方，序号应自下而上填写。当位置不够时可将其余部分画在标题栏的左方继续填写。,Use text or symbols to indicate the requirements of the performanc

13、e, fitting, mounting, inspection, debugging, use of the machine or subassembly and transportation. 用文字或符号说明机器或部件的性能、装配、安装、检验、调试和使用等方面的要求。,Technical requirements 技术要求,Technical requirements are very briefly written at the bottom right hand corner. 技术要求应注写在装配图的右下方空白处,力求文字简练。,本 小 节 结 束,谢谢您的认真学习！,退出,前一页

14、,特性尺寸,特性尺寸,总高尺寸,总宽尺寸,总长尺寸,Characteristic and specification and external dimensions 特性尺寸和外形尺寸,请 点 击 鼠 标 左 键 显 示 后 面 内 容,Fitting dimensions 装配尺寸,主、从动轴的中心距,主动轴的中心高度,请 点 击 鼠 标 左 键 显 示 后 面 内 容,Mounting and other dimensions 安装尺寸和其它尺寸,安装孔的中心距,安装孔的尺寸,螺孔定位尺寸,沿水平方向顺时针排序,相同的零件应编写同一个序号，只注一次,所有零、部件都必须编写序号,序号字高比该装配图中所注尺寸数字高度大一号或大两号,在指引线的水平线（细实线）上或圆圈（细实线）内注写序号,Numbering 序号标注,在指引线的水平线（细实线）上或圆圈（细实线）内注写序号,Numbering 序号标注,若所指部分不便画圆点时，可在指引线末端画出箭头指向该部分的轮廓,在轮廓线内画圆点，再引出指引