飞机自动制孔离线编程数据准确提取技术

针对目前飞机组部件自动制孔离线编程人工参与程度高、效率低,质量问题无法预防的现状,提出了基于数据库及标签定义的准确离线编程技术。根据飞机自动制孔的工艺特点,制定了离线编程流程。根据离线编程数据需求,建立了编程数据库。结合数据库以及MBD模型,制定了自动制孔标准件、叠层、厚度、工艺参数等信息提取规则,利用DELMIA中标签具备属性特征、方向特征、点位特征的特点,实现了基于标签的工艺信息表达及设备姿态控制。最后对标签在产品坐标系和设备坐标系的转换进行了分析,实现了加工程序坐标值的正确输出。

Accurate Data Extraction Technology for Off-Line Programming of Aircraft Automatic Drilling

The current aircraft automatic drill off-line programming has the disadvantage of high degree of manual participation,low efficiency and unable to prevent quality problems.To solve this problem,an offline programming method based on database and defined label is proposed.According to the process characteristics of aircraft automatic drilling,the off-line programming process is established.According to the requirement of offline programming data,the programming database is established.Combined with the database and MBD model,the information extraction rules of fastener,lamination,thickness and process parameters are formulated.The tag based process information expression and equipment attitude control are realized in DELMIA by using the characteristics of attribute feature,direction feature and point feature of label.Finally,the transformation of label in product coordinate system and equipment coordinate system is analyzed,and the correct output of processing program coordinate value is realized.