角盒类零件加工特征识别方法

Machining Feature Recognition Method of Corner Box Parts

为提高角盒类零件数控加工工艺规划速度,研究加工特征自动识别过程,提出基于识别方向单特征顺序图匹配的特征识别方法。结合角盒类零件加工工艺流程,将加工特征分为正面加工特征、反面加工特征、正反双面加工特征、侧面加工特征4种类型。介绍了加工特征识别过程,包括孔特征和过渡特征识别与抑制、单特征属性邻接图生成与分解、加工特征类型判别等关键步骤。建立了角盒类零件加工特征识别原型系统,并通过角盒类典型零件验证所提方法的有效性与正确性。

To improve the speed of NC machining process planning for corner box parts,the automatic recognition process of machining feature was researched,and a feature recognition method based on single feature sequence graph matching in recognition direction was proposed.According to the processing process of corner box parts,the machining feature was divided into four types of front machining feature,back machining feature,front and back machining feature,and side machining feature.The recognition process of machining feature was introduced,which included the key steps such as the recognition and suppression of hole and transition feature,the generation and decomposition of attributed adj acency graph,and the discrimination of machining feature types.The prototype system of the machining feature recognition of corner box parts was established.A corner box typical part was used to verify the validity and correctness of the proposed method.