| 面向数控加工工时估算的模型特征识别 |
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| 引用本文： | 王宁,席平,张宝源.面向数控加工工时估算的模型特征识别[J].工程图学学报,2012(5):89-93. |
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| 作者姓名： | 王宁 席平 张宝源 |
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| 作者单位： | 北京航空航天大学机械工程及自动化学院,北京100191 |
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| 摘 要： | 利用数控加工结构件的特征具有层次分布式特点,提出了基于面邻接关系的特征识别方法,将零件的面先分成基础面和约束面,再根据凹凸邻接关系组合为相应的层集合,以层作为特征识别的基础,通过层的识别和组合获得数控加工结构件的特征,并提取相关特征参数信息,结合机床的加工参数,对零件加工工时进行了估算,并进行了实例验证。
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| 关 键 词： | 计算机应用 结构件 特征识别 加工工时 |
The feature recognition of 3D model for NC processing time forecasting |
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| Wang Ning,Xi Ping,Zhang Baoyuan.The feature recognition of 3D model for NC processing time forecasting[J].Journal of Engineering Graphics,2012(5):89-93. |
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| Authors: | Wang Ning Xi Ping Zhang Baoyuan |
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| Affiliation: | ( School of Mechanical Engineering and Automation, Beihang University, Beijing 100191, China ) |
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| Abstract: | Since features of NC machining structural part have obvious hierarchical distribution nature, a method based on the relationship of adjacent faces is provided. The faces of the part are combined into base faces and constraint faces. Then with the concave-convex relationship, these faces are combined into layers. The layer is used as the base of feature recognition. By recognition and combination of layers, machining features are recognized, and parameters of them are extracted. Finally the machining time is computed with the parameters of NC machining tool and the features. |
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| Keywords: | computer application structural part feature recognition processing time |
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