注塑模具分型线自动搜索技术研究  

On Automatic Searching of the Parting Line in Injection Mold Design

作　　者：涂小文[1] 索庆栋[1] 娄臻亮[1] 

机构地区：[1]上海交通大学模具CAD国家研究中心,上海200030

出　　处：《机械科学与技术》2003年第6期865-868,共4页Mechanical Science and Technology for Aerospace Engineering

基　　金：上海市科学技术发展基金重点科技攻关项目( 0 15 1110 0 4)资助

摘　　要：提出了一种自动搜索模具分型线的方法。该方法首先依据脱模方向确定与之垂直的平面 ,并将塑料制件向该平面投影 ,得到模具分型线的主轮廓线 ,然后建立主轮廓线与制件表面上的边线和顶点投影映射关系 ,从中可以得到多种候选分型线 ,最后根据分型线的评价因子计算各分型线的优化目标函数值 ,确定最佳的分型线。实例测试表明 ,该方法具有较高的效率和实用性。In this paper, a new approach to automatically searching the parting line in injection mold design is introduced. Firstly, project the plastic part to the plane perpendicular to the parting direction of the mold and result in main contour line of the mold. Then, the projection mapping relations is set up between the main contour line and the edges and vertexes of the surfaces of the molded part and several candidate parting lines are determined. Finally, calculate the optimized objective functions of the candidate parting lines according to a set of evaluation criteria and decide the optimal parting line. The test results show that the proposed approach is effective and efficient in automatically searching the parting line of a molded part.

关 键 词：注塑模 分型线 投影映射 优化 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]