面向STEP模型装配特征自动提取的装配信息模型构建

doi:10.3969/j.issn.1004-132X.2025.01.013

中国机械工程 ›› 2025, Vol. 36 ›› Issue (01): 123-132.DOI: 10.3969/j.issn.1004-132X.2025.01.013

面向STEP模型装配特征自动提取的装配信息模型构建

贾康^1,2;唐竟^1,2;任东旭^1,2;王浩^1,2;赵强强^1,2;洪军^1,2*

1.西安交通大学现代设计与轴承转子教育部重点实验室，西安，710049
2.西安交通大学机械工程学院，西安，710049

出版日期:2025-01-25 发布日期:2025-03-06
作者简介:贾康，男，1987年生，副研究员、硕士研究生导师。研究方向为复杂机械装备精密装配的技术与软件系统开发。发表论文26篇。E-mail:jiakang@xjtu.edu.cn。
基金资助:
特种车辆及其传动系统智能制造国家重点实验室开放基金（GZ2022KF013）

Construction of Assembly Information Model Based on Assembly Feature Automatic Extraction for STEP Models

JIA Kang^1,2;TANG Jing^1,2;REN Dongxu^1,2;WANG Hao^1,2;ZHAO Qiangqiang^1,2;HONG Jun^1,2*

1.Key Laboratory of Education Ministry for Modern Design & Rotor-Bearing System,
Xian Jiaotong University,Xian，710049
2.School of Mechanical Engineering,Xian Jiaotong University,Xian，710049

Online:2025-01-25 Published:2025-03-06

摘要/Abstract

摘要： 装配信息建模是数字化装配、智能化装配的基础，然而人工交互建模效率低下且易发生装配特征识别和装配特征配合的错误，难以满足复杂机械系统的精确建模。基于三维装配体模型隐含的装配工艺信息，以STEP模型文件为输入，研究了面向几何信息的装配特征自动提取与配合关系识别算法。进而针对装配集成信息模型的构建，从装配精度模型和装配序列规划角度提出了信息推理算法。最后基于开发的系统，通过装配实例信息模型构建证明了所提算法的有效性。

关键词: 装配信息建模, 装配特征自动提取, 配合关系识别, 装配层次对象坐标系

Abstract: Assembly information modeling was the foundation of digital assembly and intelligent assembly. However, the manual interactive modeling was inefficient and prone to errors in assembly feature recognition and assembly feature fitting, which was difficult to meet the precise modeling needs of complex mechanical systems. Based on the assembly process information implied by a 3D assembly model, this paper used STEP model files as inputs to study the algorithms for automatic extraction of assembly features and recognition of fitting relationships focused on geometric information. Furthermore, an information reasoning algorithm was proposed for constructing an integrated assembly information model from the perspectives of assembly accuracy modeling and assembly sequence planning. Finally, the effectiveness of the proposed algorithms was demonstrated through the construction of assembly instance information models based on the developed system.

Key words: assembly information modelling, assembly feature automatic extraction, pairing relationship distinguish, assembly hierarchical coordinate system

中图分类号:

TP391

贾康1, 2, 唐竟1, 2, 任东旭1, 2, 王浩1, 2, 赵强强1, 2, 洪军1, 2. 面向STEP模型装配特征自动提取的装配信息模型构建[J]. 中国机械工程, 2025, 36(01): 123-132.

JIA Kang1, 2, TANG Jing1, 2, REN Dongxu1, 2, WANG Hao1, 2, ZHAO Qiangqiang1, 2, HONG Jun1, 2. Construction of Assembly Information Model Based on Assembly Feature Automatic Extraction for STEP Models[J]. China Mechanical Engineering, 2025, 36(01): 123-132.

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链接本文: https://www.cmemo.org.cn/CN/10.3969/j.issn.1004-132X.2025.01.013

https://www.cmemo.org.cn/CN/Y2025/V36/I01/123

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面向STEP模型装配特征自动提取的装配信息模型构建

Construction of Assembly Information Model Based on Assembly Feature Automatic Extraction for STEP Models

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