基于多对称特征的零件装配效率预测模型
发布时间：2018-07-16 18:26
【摘要】：为研究零件对称结构对装配效率的影响,分析抓取和定向两种零件装配操作过程,逐一考虑零件上的多对称特征并分类为轮廓型对称特征和定向型对称特征。以三种不同装配要求下,六边形棱柱零件可能转动的最大角度为例,在总对称角概念基础上提出零件总修正角概念。结合现有试验数据,在满足"零件越对称,装配效率越高"和四个基本条件下,建立多对称特征下的零件"对称度-装配时间"预测模型。用五种模型预测四种不同多对称零件的装配效率,对比结果表明:零件"对称度-装配时间"预测模型与试验结果更接近,具有更好的区分度与可信性。
[Abstract]:In order to study the effect of the symmetrical structure of parts on the assembly efficiency, this paper analyzes the assembly operation process of two kinds of parts, grasping and orientation, and considers the multi-symmetry features one by one and classifies them into contour symmetric features and directional symmetric features. Taking the maximum angle of hexagonal prism as an example, the concept of total correction angle is proposed on the basis of the concept of total symmetric angle. Based on the existing experimental data, the "symmetry degree-assembly time" prediction model is established under the conditions of "the more symmetrical parts, the higher assembly efficiency" and the four basic conditions. Five kinds of models are used to predict the assembly efficiency of four different kinds of multi-symmetric parts. The comparison results show that the "symmetry degree-assembly time" prediction model is closer to the experimental results, and has better distinction and credibility.
【作者单位】： 浙江大学CAD&CG国家重点实验室;
【基金】：国家自然科学基金资助项目(51175455)
【分类号】：TG95
本文编号：2127258
[Abstract]:In order to study the effect of the symmetrical structure of parts on the assembly efficiency, this paper analyzes the assembly operation process of two kinds of parts, grasping and orientation, and considers the multi-symmetry features one by one and classifies them into contour symmetric features and directional symmetric features. Taking the maximum angle of hexagonal prism as an example, the concept of total correction angle is proposed on the basis of the concept of total symmetric angle. Based on the existing experimental data, the "symmetry degree-assembly time" prediction model is established under the conditions of "the more symmetrical parts, the higher assembly efficiency" and the four basic conditions. Five kinds of models are used to predict the assembly efficiency of four different kinds of multi-symmetric parts. The comparison results show that the "symmetry degree-assembly time" prediction model is closer to the experimental results, and has better distinction and credibility.
【作者单位】： 浙江大学CAD&CG国家重点实验室;
【基金】：国家自然科学基金资助项目(51175455)
【分类号】：TG95
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