喷锡钢网曲线偏置方法研究  

Research on the curve offset method of tin-sprayed steel mesh

作　　者：罗铭 李贵[1,2,3] LUO Ming;LI Gui(Key Laboratory of Metallurgical Equipment and Control Technology of Ministry of Education,Wuhan University of Science and Technology,Wuhan 430081,China;Hubei Key Laboratory of Mechanical Transmission and Manufacturing Engineering,Wuhan University of Science and Technology,Wuhan 430081,China;Institute of Precision Manufacturing,Wuhan University of Science and Technology,Wuhan 430081,China)

机构地区：[1]武汉科技大学冶金装备及其控制教育部重点实验室,武汉430081 [2]武汉科技大学机械传动与制造过程湖北省重点实验室,武汉430081 [3]武汉科技大学精密制造研究院,武汉430081

出　　处：《智能计算机与应用》2022年第9期100-104,共5页Intelligent Computer and Applications

基　　金：容桂科技计划项目(容桂经发(2017)27号-8)。

摘　　要：喷锡钢网设计在喷锡钢网生产中尤为重要,是保证喷锡钢网功能与质量的关键,曲线偏置在喷锡钢网设计过程中占有很大的比重,但是目前缺乏简单有效的偏置算法应对喷锡钢网特殊的几何结构。本文基于有向图理论以及曲线重构思想,提出一种喷锡钢网曲线偏置方法。首先,基于喷锡钢网结构特点,提出了一种复合多段线偏置方法,并基于有向图理论解决了偏置过程中曲线自相交问题;其次,基于曲线重构思想提出了偏置曲线孤岛绕行方法,解决了偏置曲线与孤岛体结构的干涉问题,并进行了尖角处理;最后,将算法应用于实例,得到的偏置曲线无尖角与自相交点,且与孤岛结构无干涉情况,完全满足偏置要求。The design of the tin-sprayed steel mesh is particularly important in the production of tin-sprayed stencils, and it is the key to ensuring the function and quality of the tin-sprayed stencils. Among them, the curve offset occupies a large proportion in the design process of the tin-sprayed steel mesh, but at present there is no simple and effective offset algorithm to deal with the special geometric structure of the tin-sprayed steel mesh. Therefore, based on the directed graph theory and the idea of curve reconstruction, this paper proposes a curve offset method for tin-sprayed steel mesh. Firstly, based on the structural characteristics of the tin-sprayed steel mesh, a composite polyline offset method is proposed, and based on the idea of directed graph theory, the problem of self-intersection of curves in the offset process is solved. Then based on the idea of curve reconstruction, an island detour method of offset curve is proposed which solves the problem of interference between offset curve and island structure, and sharp corners are also solved. Finally, by applying the algorithm to the example, the obtained bias curve has no sharp corners and self-intersection points, and no interference with the island structure, which fully meets the bias requirements.

关 键 词：喷锡钢网 曲线偏置 复合多段线 有向图 曲线重构 尖角处理 

分 类 号：TH164[机械工程—机械制造及自动化]