期刊文献+

基于环分析的飞机结构件槽特征腹板精加工区域自动创建方法 被引量:7

Loop-Analysis-Based Automatic Creation Method for Bottom Finish Machining Region of Pocket Feature in Aircraft Structural Parts
下载PDF
导出
摘要 针对飞机结构件腹板精加工区域创建中曲线裁剪的分类情况多、裁剪后线段取舍判断复杂且易出错的问题,提出了基于环分析的腹板精加工区域自动创建方法。将各种飞机结构件槽特征的广义侧面与广义底面外环边界投影至腹板面,将投影曲线段离散成一系列直线段并对其求交分割,采用直线段旋转法进行环分析,进而创建最优化的腹板精加工区域。对闭角、开闭角并存及共侧面等类型的槽特征腹板加工区域创建进行统一计算,算法通用性好,有效地提高了腹板精加工编程的效率。基于以上研究开发的基于特征的腹板精加工数控编程系统已在某大型航空制造企业中得到良好的应用。 A loop--analysis--based method was proposed to address the problem concerning the variety of curve--clipping types, the complexity of accepting or deserting the clipped curves and the error--prone characteristics of creating bottom finishing region of pocket feature in aircraft structural parts. In this method, the boundary of exterior loop of the generalized sides and generalized bottoms of the part were projected to the bottom. Then these curves were discretized to a set of lines. After that, the lines were tailored with the calculation of all the intersections. Ultimately, using the line-- rotating method to analyze the loop and the optimized bottom finish machining region was obtained. This method can improve the efficiency of NC programming for bottom finish machining effectively, and bottom finish machining region of all kinds of pocket feature can be created using this method. Based on the above research, a feature--based bottom NC programming system was developed, which is applied in a large aviation manufacturing enterprise successfully.
出处 《中国机械工程》 EI CAS CSCD 北大核心 2013年第13期1728-1733,共6页 China Mechanical Engineering
基金 国家科技重大专项(2012ZX04010041)
关键词 飞机结构件 槽特征 腹板 加工区域 loop aircraft structural part pocket feature bottom machining region
  • 相关文献

参考文献14

  • 1张振明;许建新;贾晓亮.现代CAPP技术与应用[M]西安:西北工业大学出版社,2003.
  • 2Li Y G,Ding Y F,Mou W P. Feature Recognition Technology for Aircraft Structural Parts Based on a Holistic Attribute Adjacency Graph[J].Journal of Engineering Manufacture,2010,(02):271-278.
  • 3韩雄,汤立民.大型航空结构件数控加工装备与先进加工技术[J].航空制造技术,2009,52(1):42-47. 被引量:23
  • 4王伟.飞机结构件快速数控编程技术研究与实现[D]南京:南京航空航天大学,2009.
  • 5徐啸峰,周儒荣,安鲁陵,周来水.一种复杂平面型腔加工区域自动识别的算法[J].机械设计与制造工程,2001,30(2):42-43. 被引量:1
  • 6张鸣,刘伟军,杨红涛.复杂型腔加工区域的自动识别[J].中国机械工程,2010,21(18):2224-2228. 被引量:3
  • 7Park S C,Choi B K. Boundary Extraction Algorithm for Cutting Area Detection[J].Computer-Aided Design,2001,(08):571-579.doi:10.1016/S0010-4485(00)00101-9.
  • 8Park S C,Chung Y C. Tool-path Generation from Measured Data[J].Computer-Aided Design,2003,(05):467-475.doi:10.1016/S0010-4485(02)00070-2.
  • 9周刚,邬义杰,潘晓弘.基于Z-map模型的加工区域边界抽取算法研究[J].中国图象图形学报,2008,13(1):151-157. 被引量:3
  • 10Li Weishi,Martin R R,Langbein F C. Merging and Smoothing Machining Boundaries on Cutter Location Surfaces[A].Haifa,2010.165-170.

二级参考文献8

  • 1严蔚敏 吴伟民.数据结构(第2版)[M].北京:清华大学出版社,1995.119-193.
  • 2谢叻.基于Trimmed NURBS曲面造型的数控编程技术的研究与实现[M].南京:南京航空航天大学,1999..
  • 3Park S C,Choi B K. Boundary Extraction Algorithm for Cutting Area Detection[J]. Computer-- aided Design,2001,33(8) :571-579.
  • 4Held M, Lucacs G, Andor L. Pocket Machining Based on Contour--Parallel Tool Paths Generated by Means of Proximity Maps[J]. Computer-aided Design, 1994,26 (3) : 189-203.
  • 5Choi B K,Park S C. A Pair--wise Offset Algorithm for 213 Point--sequence Curve[J]. Computer-aided Design, 1999, 31 (12) : 735-745.
  • 6闫光荣,朱心雄,涂侯杰.基于点阵投影的粗加工新方法[J].工程图学学报,2000,21(1):28-35. 被引量:9
  • 7陈杉,闫光荣,陈言秋,朱心雄.基于留量模型的智能加工[J].计算机辅助工程,2000,9(3):25-32. 被引量:6
  • 8钱晓峰,安鲁陵,陈辰.二维图形的集合运算算法研究[J].南京航空航天大学学报,2001,33(1):37-40. 被引量:5

共引文献25

同被引文献73

引证文献7

二级引证文献10

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部