基于虚拟控制面约束的机匣类零件工序模型建立方法

doi:10.7527/S1000-6893.2015.0218

Abstract

Abstract:

In numerical control (NC) machining of a multi-island casing part, establishing accurate machining process model is a key technology to realize intelligent processing of such parts. In order to obtain accurate machining process model of a multi-island casing parts, a method based on virtual control surface constraints to structure process models of a casing part is proposed. Firstly, the introduction of virtual control surface constraints in modeling process is analyzed according to machining characteristics of the multi-island casing parts, and the Lagrange transfinite interpolation modeling theory is given by combining the idea of virtual control surface constraints. Then according to geometrical characteristics of the casing parts, the algorithm for calculating the distribution position and geometric shape of the virtual control surfaces is determined; on this basis, according to the modeling theory of virtual control surface to structure the middle surface, the process model according to cutting depth constraint and plan the tool path for it is determined. Finally, a validation is conducted on a multi-island casing part. The result shows that the proposed method is able to control the geometry of process model effectively according to the distribution of machining characteristics, avoid the geometry of process surface prematurely tending to be complicated caused by handling multiple processing characteristics simultaneously and provide some effective process models for multi-island casing parts in NC machining; to some extent, the difficulty of the process planning for a multi-island casing parts is reduced.

Key words: casing parts, transfinite interpolation, virtual control surface, process model, process planning

CLC Number:

V261

HAN Feiyan, ZHANG Dinghua, ZHANG Ying, WU Baohai. A method of generate intermediate process models for casing parts based on virtual control surface constraints[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2015, 36(10): 3465-3474.

References

[1] Duncan J P, Mair S G. Sculptured surfaces in engineering and medicine[M]. Cambridge: Cambridge University Press, 1983: 126-130.
[2] Cao L X, Gong H, Liu J. Research on contact problem of surfaces and contact characteristics of offset surfaces[J]. Journal of Dalian University of Technology, 2007, 47(1): 39-44 (in Chinese). 曹利新, 宫虎, 刘健. 曲面接触问题及其等距面接触特性研究[J]. 大连理工大学学报, 2007, 47(1): 39-44.
[3] Yue Y, Jia J. Computing offsets of NURBS curve and surface[J]. Advanced Materials Research, 2012, 542: 537-540.
[4] Satoh N, Matsuyama K, Konno K, et al. High-quality approximation technique for two G¹-continuous offset surfaces[J]. Computer-Aided Design and Applications, 2014, 11(1): 78-89.
[5] Saito T, Takahashi T. NC machining with G-buffer method[J]. Computer Graphics, 1991, 25(4): 207-216.
[6] Choi B K, Kim D H, Jerard R B. C-space approach to tool-path generation for die and mould machining[J]. Computer-Aided Design, 1997, 29(9): 657-669.
[7] Yan G R. Numerical control machining based on a stock-remaining model[D]. Beijing: Beihang University, 2001 (in Chinese). 闫光荣. 基于留量模型的数控加工[D]. 北京: 北京航空航天大学, 2001.
[8] Chen S, Yan G R. The intelligent machining based on stock-remaining model[J]. Computer Aided Engineering, 2000, 9(3): 25-32 (in Chinese). 陈杉, 闫光荣. 基于留量模型的智能加工[J]. 计算机辅助工程, 2000, 9(3): 25-32.
[9] Liu Y F, Ke Y L, Wang Q C, et al. Research on reverse engineering technology based on features[J]. Computer Integrated Manufacturing Systems, 2006, 12(1): 32-37 (in Chinese). 刘云峰, 柯映林, 王秋成, 等. 基于特征的反求工程技术研究[J]. 计算机集成制造系统, 2006, 12(1): 32-37.
[10] Zhang Y. Research for key techniques of adaptive numerical control machining for aero-engine blades[D]. Xi'an: Northwestern Polytechnical University, 2011 (in Chinese). 张莹. 叶片类零件自适应数控加工系统关键技术研究[D]. 西安: 西北工业大学, 2011.
[11] Lin X J, Chen Y, Wang Z W, et al. Model restructuring about leading edge and tailing edge of precision forging blade for adaptive machining[J]. Acta Aeronautica et Astronautica Sinica, 2015, 36(5): 1695-1703 (in Chinese). 蔺小军, 陈悦, 王志伟, 等. 面向自适应加工的精锻叶片前后缘模型重构[J]. 航空学报, 2015, 36(5): 1695-1703.
[12] Zhang H, Liu H C, Zhang S W, et al. Reverse generation technology 3D intermediate procedure model for complex parts[J]. Computer Integrated Manufacturing Systems, 2015, 21(5): 1216-1221 (in Chinese). 张辉, 刘华昌, 张胜文, 等. 复杂零件三维中间工序模型逆向生成技术[J]. 计算机集成制造系统, 2015, 21(5): 1216-1221.
[13] DeCarlo D, Gallier J. Topological evolution of surfaces[J]. Graphics Interface, 1996, 96: 194-203.
[14] Lazarus F, Verroust A. Three-dimensional metamorphosis: A survey[J]. The Visual Computer, 1998, 14(8-9): 373-389.
[15] Lefebvre P, Lauwers B. 3D morphing for generating intermediate roughing levels in multi-axis machining[J]. Computer-Aided Design and Applications, 2005, 2(1-4): 115-123.
[16] Behera A K, Lauwers B, Duflou J R. Tool path generation for single point incremental forming using intelligent sequencing and multi-step mesh morphing techniques[J]. Key Engineering Materials, 2013, 554-557: 1408-1418.
[17] Han S R. New unified machining process planning using morphing technology[D]. California: University of California Los Angeles, 2011.
[18] Han S R, Yang D C H. Volume interior parameterization for automated unified machining process of freeform surfaces[M]. Berlin: Springer Berlin Heidelberg, 2012: 577-584.
[19] Huang B. A unified approach for integrated computer-aided design and manufacturing[D]. California: University of California Los Angeles, 2013.
[20] Zhang Z, Lin S L, Zhu Q D, et al. Genetic collision avoidance planning algorithm for irregular shaped object with kinematics constraint[J]. Acta Aeronautica et Astronautica Sinica, 2015, 36(4): 1348-1358 (in Chinese). 张智, 林圣琳, 朱齐丹, 等. 考虑运动学约束的不规则目标遗传避碰规划算法[J]. 航空学报, 2015, 36(4): 1348-1358.

A method of generate intermediate process models for casing parts based on virtual control surface constraints

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