基于夹具实例信息的定位元件方案自动匹配算法  

Automatic Matching Approach of Locator Scheme Based on Fixture Case

作　　者：秦国华[1] 侯源君 路冬[1] 

机构地区：[1]南昌航空大学航空与机械工程学院,南昌330063

出　　处：《农业机械学报》2014年第2期308-313,共6页Transactions of the Chinese Society for Agricultural Machinery

基　　金：国家自然科学基金资助项目(51165039);航空科学基金资助项目(2010ZE56014);江西省科技支撑计划重点资助项目(2010BGB00300)

摘　　要：提出了一种基于夹具实例库的定位元件方案设计方法。首先,根据定位基准表面上的定位点数目,构建了定位元件方案的工艺信息匹配度。其次,根据工件自身的几何拓扑关系,提出了工件的面、线、点3个层次的几何信息匹配矩阵,构造了工件的适应度及其相应的权重。再次,结合定位元件方案的工艺信息,建立了定位元件方案的决策匹配函数。最后,利用典型实例说明定位元件方案自动匹配算法的详细应用过程。An automatic matching approach of locator scheme was suggested on the basis of fixture cases. Firstly, in light of the number of locating points, the processing information matching index of locating reference was proposed. Secondly, according of the geometrical and topological relation, the geometrical information matching matrix of workpiece was proposed from three levels of point, line and surface. And then, the fitness index of workpiece and corresponding weight were constructed. Thirdly, the decision function of locator scheme was formulated with combination of the processing information matching index. Finally, some typical examples were used to illustrate the proposed automatic matching approach of locator scheme in detail.

关 键 词：计算机辅助夹具设计 定位点方案 定位元件方案 节点深度 匹配 

分 类 号：TG75[金属学及工艺—刀具与模具]