复杂曲面的逆向造型设计及多轴联动加工
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摘要
基于逆向工程技术及CAD/CAM技术的平台,针对某一工艺品的点云模型文件,利用逆向工程软件Geomagic完成复杂曲面的NURBS曲面三维造型并进行误差分析。根据该复杂曲面零件的结构特点,合理制定加工工艺,运用UG软件生成多轴加工刀具轨迹及数控加工代码。最终经Vericut软件构建的双摆台五轴机床验证了数控程序的正确性。研究表明,利用逆向造型软件对复杂曲面产品进行NURBS曲面重构,结合CAD/CAM技术,不仅能高效地对复杂曲面产品进行二次设计,从而大大缩短产品开发周期,而且也能为复杂曲面零件的仿制加工提供依据。
Based on the platform of reverse engineering technology and CAD/CAM technology, the reverse modeling Geomagic software is used to complete the three-dimensional modeling of NURBS surface of complex surface and analyze the error for the point cloud model file of arts and crafts. According to the structural characteristics of the complex curved surface parts, the machining process is rationally formulated, and the UG software is used to generate the multi-axis machining tool path and the NC machining code. Finally, the dual-swing five-axis machine tool constructed by Vericut software is used to verify the correctness of the NC program. The above research shows that the use of reverse modeling software for NURBS surface reconstruction of complex curved products, combined with CAD/CAM technology, can not only effectively redesign the complex surface products, thus greatly shortening the product development cycle,but also provides a basis for the imitation processing of complex curved parts.
Based on the platform of reverse engineering technology and CAD/CAM technology, the reverse modeling Geomagic software is used to complete the three-dimensional modeling of NURBS surface of complex surface and analyze the error for the point cloud model file of arts and crafts. According to the structural characteristics of the complex curved surface parts, the machining process is rationally formulated, and the UG software is used to generate the multi-axis machining tool path and the NC machining code. Finally, the dual-swing five-axis machine tool constructed by Vericut software is used to verify the correctness of the NC program. The above research shows that the use of reverse modeling software for NURBS surface reconstruction of complex curved products, combined with CAD/CAM technology, can not only effectively redesign the complex surface products, thus greatly shortening the product development cycle,but also provides a basis for the imitation processing of complex curved parts.
引文
[1] 高长银.UG NX8.5多轴数控加工典型实例[M].北京:机械工业出版社,2014.
[2] 李朝光,谢龙汉.UG NX5多轴加工及应用实例[M].北京:清华大学出版社,2007.
[3] 贺建群,徐宝林.UG NX7.0多轴加工实例教程[M].北京:清华大学出版社,2011.
[4] 杨胜群.Vericut数控加工仿真技术[M].北京:清华大学出版社,2010.
[5] 吴永强.精通UG NX 5+Imageware逆向工程设计[M].北京:电子工业出版社,2008.
[6] 北京兆迪科技有限公司.UG NX 8.5数控加工教程[M].北京:机械工业出版社,2013.
[7] 成思源,杨雪荣.Geomagic Design Direct逆向设计技术及应用[M].北京:清华大学出版社,2015.
[8] 寇文化.UG NX8.0数控铣多轴加工工艺与编程[M].北京:化学工业出版社,2015.
[2] 李朝光,谢龙汉.UG NX5多轴加工及应用实例[M].北京:清华大学出版社,2007.
[3] 贺建群,徐宝林.UG NX7.0多轴加工实例教程[M].北京:清华大学出版社,2011.
[4] 杨胜群.Vericut数控加工仿真技术[M].北京:清华大学出版社,2010.
[5] 吴永强.精通UG NX 5+Imageware逆向工程设计[M].北京:电子工业出版社,2008.
[6] 北京兆迪科技有限公司.UG NX 8.5数控加工教程[M].北京:机械工业出版社,2013.
[7] 成思源,杨雪荣.Geomagic Design Direct逆向设计技术及应用[M].北京:清华大学出版社,2015.
[8] 寇文化.UG NX8.0数控铣多轴加工工艺与编程[M].北京:化学工业出版社,2015.