CAPP系统中工艺尺寸自动求解方法的研究
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摘要
计算机辅助工艺过程设计(CAPP)在其发展历程中,已经取得了一定的成果,
    少量系统已在生产中发挥了实际作用。
     本论文的研究内容—复杂工艺尺寸链自动求解问题,是本课题组所开发的齿轮
    轴类零件的CAPP系统中重要组成部分之一。对CAPP系统在发展过程中的这个瓶
    颈问题提出了一个较为实用的解决方案。作者通过对大量工艺尺寸链计算问题的反
    复分析,通过对单一尺寸形式的抽象,建立基于图论的数学模型,在中间的算法设
    计过程中借助于一些具体的方法和规则,最终设计出求解算法。并且,该模块的正
    确性与可行性己经得到了实例的验证。
     本算法的实现不但在理论上推动了CAPP技术的发展,而且在作者所在课题组
    开发的齿轮轴类零件的CAPP系统上已得到了成功的应用。
As the indispensable modular of a integral CAPP system and one of the necessaiy content in process
     card, the calculation of process dimension chain has become one of the choke point of the integration of
     CAD/CAPP/CAM system. It is discouraging to find there is no CAPP system which has been developed
     has solved this problem. This problem has become one of factors of hindering the perfect integration of
     CAD/CAPP/CAM system. So it is urgent to search the method to this problem. After years of the
     significant efforts pursued by author, great achievement has been obtained to date.
     A creative algorithm based on the theory of graphics was introduced in this paper in the course of
     author researching and developing CAPP system for rotational parts through analyzing numbers of this
     kind of question. In order to achieve our purpose of finding an intellectualized algorithm, this article takes
     the following procedures, seeking the intrinsic characteristic of single process dimension, establishing
     the mathematical model, abstracting the expression way based on the theory of graphics, instituting some
     regulation during the construction of algorithm, and finally procuring the algorithm. The competence of
     this algorithm has been verified in the CAPP system for rotational parts developed by author. The
     realization of this algorithm not only pushes forward theoretically the development of CAD/CAPP/CAM
     integration system, but also owns greatly practical value.
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