Abstract: Aiming at the problem of assembly efficiency caused by the demand for intelligent enhancement and human-computer interaction in the product assembly process,an intelligent assembly method of typical parts guided by Assembly Main Thread (AMT) was proposed.According to the assembly structure,feature matching and other attributes of parts,by extracting the matching association information of Assembly Feature Pairs (AFP) and assembly feature serialization,the matching relationship of Assembly Features (AF) was simplified equivalently,and the matching relationship graph of AFs was constructed.The concept of AMT was introduced to complete the classification of AMT and the intelligent assembly of various AMTs within the AMT by the main route of component assembly and associated assembly matching.Guided by the matching locating among the AMTs,the degree of freedom protocol of features matching and the assembly sequence planning,the assembly matching sequence and relation among the AMTs at all levels were constructed by matching the AMT ports.Based on feature matching constraint mapping,AFP matching reasoning algorithm and assembly modeling intelligent algorithm,the dynamic intelligent assembly of typical components was realized.The feasibility and effectiveness of the proposed method were verified by an example.

Key words: intelligent assembly, typical components, assembly feature, assembly main thread, matching reasoning

摘要： 针对产品装配智能化提升需求及人机交互操作引起的装配效率问题,提出一种装配主线引导的典型部件智能化装配方法。依据部件装配结构和特征配合等属性,通过提取装配特征对及装配特征序列化配合关联信息,对装配特征匹配关系进行等效简化,构建装配特征配合关系图。引入装配主线概念,以部件装配主路线及关联装配配合等完成装配主线的分类及装配主线内各级主线的智能装配;以装配主线间配合寻位、特征配合自由度规约及装配序列规划等为引导,通过主线端口匹配,完成各级装配主线间的装配配合序列和关系构建。基于特征配合约束映射、装配特征对匹配推理算法及装配建模智能算法等环节,实现典型部件的动态智能装配。以典型部件为实例验证了所提方法的可行性和有效性。

关键词: 智能装配, 典型部件, 装配特征, 装配主线, 匹配推理