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1)  process and blank dimensions
工序及毛坯尺寸
2)  blank size
毛坯尺寸
1.
Accroding to the structure characteristics and using request of the hanger, analyzed the press process, through using hole deformation compensation method, determined an efficient process plan and component blank size, designed the practical die structure, satisfied the component using request, reduced the cost.
针对零件结构及使用要求,对其冲压工艺进行了分析,通过利用孔变形补偿法,确定了一种经济性加工工艺方案及零件的毛坯尺寸,设计了实用的模具结构,满足了零件的使用要求,降低了生产成本。
2.
According to the service conditions of petroleum devices at low temperature,the impact properties of 35CrMoA steel and cast steel ZG35CrMo applied commonly in petroleum industry and the effects of the processing conditions,blank sizes,and temperature were respectively studied.
针对石油钻采设备的低温服役条件,考察了石油工业常用35CrMoA钢及ZG35CrMo铸钢的冲击性能以及热处理工艺、毛坯尺寸和温度等因素的影响。
3.
The calculation of blank size and the method of technological calculation in drawing lamp box was briefly stated.
分析了盒形件在拉深过程中的变形特点,并以一个典型盒形件—金属灯盒为实例,重点介绍了盒形件拉深成形时毛坯尺寸的确定和工艺计算的方法和步骤。
3)  blank dimension
毛坯尺寸
1.
Solving the blank dimension of rotational drawing parts with CAD software;
用CAD软件辅助求解旋转体拉深件的毛坯尺寸
2.
The blank dimensions were calˉculated with the3D forming and searching functions provided by the CAD software.
介绍了膜盒工作原理和成形工艺,采用合件拉伸成形并结合CAD软件提供的三维成形和查询功能,进行落料毛坯尺寸计算,阐述了膜片合件成形模结构及模具主要零件的加工工艺。
4)  Process size and tolerances
工序尺寸及公差
5)  procedure size
工序尺寸
1.
Based on the influence factors of location error in clamping apparatus design this paper has established the relation function between the procedure sizes or angles and the location norm parameters in which the positioning error substituted by the approximate differential value of function.
从分析夹具设计中定位误差的影响因素入手,建立了工序尺寸或角度与定位基准有关量的函数表达式,进而由函数的微分近似代替定位误差。
2.
Based on the Influence factors of location error in clamping apparatus design, this paper has established the relation function between the procedure sizes or angles and the location norm parameters, in which the positioning error substituted by the approximate differential value of function.
分析夹具设计中定位误差的影响因素,建立了工序尺寸或角度与定位基准有关量的函数表达式,由函数的微分近似代替定位误差。
6)  working procedure dimension
工序尺寸
1.
According to the shortest route principle of dimension chains,this method should start from the two ends of designing dimension or processing margin and track from the surface of components till closing,then find its dimension chain and calculate its working procedure dimension and allowance.
通过实例介绍工序尺寸的换算方法:跟踪图解法。
补充资料:工程图标准尺寸及坐标尺寸

标准标注类型,是我们常用的标注类型。而坐标标注是便于数控加工采用的另一中标注形式。PRO/E可以将两种标注方式进行转换。


· 3.2 标准标注到坐标标注的转换


注意: 转化为坐标标注的尺寸必须是线性标注的,下列尺寸不能转化为坐标标注:


 



  • 被显示成线性尺寸的直径
  • 中心线尺寸

 



  1. 选择MODIFY DRAW > Dim Params > Dim Type > Ordinate Dim > Create Base.
  2. 选择作为参考基准线的尺寸
  3. 选择基准的引出线,该点为0点
  4. 选择 MOD DIM TYPE > Lin to Ord .
  5. 选择线性尺寸:注意:必须选择具有相同基准的尺寸

========>>>>

· 3.3 由坐标标注到标准标注的转化

1. 选择 DIM PARAMS > Diam Dim Type .


2.点击Ord to Lin


3.选择尺寸即可

说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条