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基于AutoCAD的形位公差代号标注系统的开发_洪友伦.pdf

发布:2017-06-27约字共4页下载文档
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基于 AutoCAD 的形位公差代号 标注系统的开发 洪友伦 (绵阳职业技术学院,四川绵阳 621000 ) 尽管 AutoCAD 为用户提供了标注形位公差的命令,但用该项命令所注出的代号,在框格尺寸、特征符号和附加 符号等方面,均与我国现行的形位公差标准存在较大的差距。用 Auto LISP 语言开发的形位公差代号标注系统,不但可 以快速注出符合标准规定的各种代号,而且利用系统设置的基准代号标注功能和循环运行模式,可以一次性完成图中所 有基准和公差代号的标注。 形位公差;基准;代号;Auto LISP 语言;开发;标注系统 TH124 A (2009) 06 0052 04 Development of a geometric tolerance code tagging system based on the AutoCAD HONG You-lun (Mianyang vocational and technical college,Mianyang 621000,China ) Abstract :Although AutoCAD provides users with a marked geometric tolerance of the order, but note that the order of the code, in the box size, the characteristics of symbols and additional symbols and so on, with our existing geometric tolerance standard there is a big gap. Code-named the function of the benchmark inconvenienced. Auto LISP language used to develop the geometric tolerance code tagging system, not only can quickly note that in line with the standards for a variety of code, and system settings to use the benchmark code tagging feature and recycling operation mode, you can complete a one-time map of all the benchmarks and tolerance code annotation. Key words :geometric tolerance ;benchmark ;code ;Auto LISP language ;development ;tagging system AutoCAD 1b a bAutoCAD 1 AutoCAD 标注形位公差存在的问题 图 1 形位公差框格 AutoCAD 2 1996 GB/T1182-1996 1.1 框格及公差特征符号不规范 75° 1 60°45° 30°
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