特征分解模式下的系列化零件模型重构方法*

doi:10.16731/j.cnki.1671-3133.2024.11.016

现代制造工程 ›› 2024, Vol. 530 ›› Issue (11): 115-123.doi: 10.16731/j.cnki.1671-3133.2024.11.016

特征分解模式下的系列化零件模型重构方法^*

李贵^1,2,3, 彭钦銮¹, 丁子舾¹, 谭志杰¹

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

收稿日期:2023-10-19 出版日期:2024-11-18 发布日期:2024-11-29
通讯作者: 李贵,博士,副教授,硕士研究生导师,主要研究方向为机械产品设计开发。E-mail:leegui2030@wust.edu.cn
作者简介:彭钦銮,硕士研究生,主要研究方向为机械产品设计开发。E-mail:pengqinluan@163.com
基金资助:
^*容桂科技计划项目(容桂经发(2017)27号-8)

Reconstruction method of serial part model in feature-decomposition mode

LI Gui^1,2,3, PENG Qinluan¹, DING Zixi¹, TAN Zhijie¹

1 Key Laboratory of Metallurgical Equipment and Control Technology of Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081, China;
2 Hubei Key Laboratory of Mechanical Transmission and Manufacturing Engineering, Wuhan University of Science and Technology, Wuhan 430081, China;
3 Precision Manufacturing Institute, Wuhan University of Science and Technology, Wuhan 430081, China

Received:2023-10-19 Online:2024-11-18 Published:2024-11-29

摘要/Abstract

摘要： 具有相似结构特征的系列化零件模型,为进行高效地零件变更以适应不断变化的设计要求,提出基于特征分解的思想实现模型重构。通过完善布尔分割环组成实现模型分解,将模型解析为特征体的布尔组合;建立模型加权属性邻接图,分割出特征子图,获得分割块与模型整体的几何拓扑关系,以此表征模型分割元素之间的联系;通过判断分割环分割的优先级,从分解过程逆向推导,将分割得到的面壳恢复成特征体,构建基于模型设计历史的有向图表征建模过程;基于几何约束和定位约束实现模型参数化重构。经实例验证,当在满足几何和定位约束前提下对零件模型进行重构时,该方法能够实现系列化零件模型的快速变更。

关键词: 系列化模型, 特征分解, 布尔分割环, 模型重构

Abstract: In order to carry out efficient part changes to adapt to the changing design requirements for serialized part models with similar structural features, the idea based on feature decomposition is proposed to realize its reconstruction. The model decomposition is realized by refining the composition of Boolean segmentation ring, which resolves the model into a Boolean combination of feature bodies; establishing the model weighted attribute adjacency graph, segmenting out the feature subgraphs, and obtaining the geometric topological relationship between the segmentation block and the model as a whole, so as to characterize the connection between the segmented elements of the model; by judging the priority of the segmentation ring segmentation and by deducing from the decomposition process in reverse direction, the face-shell obtained by segmentation is restored into a feature body, and the model is established. The directed graph of design history characterizes the modeling process; the parametric reconstruction of the model is realized based on geometric constraints and positioning constraints. It is verified that the method can realize the rapid change of serialized part models when the part models are reconstructed under the premise of geometric and positioning constraints.

Key words: seriation model, feature decomposition, Boolean partition ring, model reconstruction

中图分类号:

TG156

李贵, 彭钦銮, 丁子舾, 谭志杰. 特征分解模式下的系列化零件模型重构方法^*[J]. 现代制造工程, 2024, 530(11): 115-123.

LI Gui, PENG Qinluan, DING Zixi, TAN Zhijie. Reconstruction method of serial part model in feature-decomposition mode[J]. Modern Manufacturing Engineering, 2024, 530(11): 115-123.

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特征分解模式下的系列化零件模型重构方法^*

Reconstruction method of serial part model in feature-decomposition mode

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