Please wait a minute...
浙江大学学报(工学版)
能源与机械工程     
基于NURBS曲面敏感点的曲面检测测点优化
赖金涛, 傅建中, 沈洪垚, 甘文峰
浙江大学 机械工程学院,浙江 杭州 310027
Measuring points optimization in machining error inspection based on reconstruction of NURBS control points driven by sensitive points
LAI Jin-tao, FU Jian-zhong, SHEN Hong-yao, GAN Wen-feng
College of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China
 全文: PDF(1923 KB)   HTML
摘要:
基于NURBS曲面控制点重构的加工误差在机测量方法,提出测点优化选择方法.通过对NURBS曲面进行分析,将曲面上控制点影响最强点和曲面极值点定义为曲面的敏感点,利用曲面敏感点的在机测量数据对NURBS曲面控制点进行重构,得到拟合加工曲面.比较加工曲面和设计曲面可以得到曲面的加工误差,对曲面的加工精度进行评估,指导曲面的误差补偿.实验过程对一自由曲面进行实际加工,通过在机测量和三坐标测量得到曲面的加工误差,分别利用均布法、等参数法和敏感点法对测点进行选择,得到相应的拟合加工曲面.分析结果表明,采用提出的测点优化选择方法获得的加工曲面具有更好的拟合精度.
Abstract:

A new method to optimize the sampling points of free-form surface was proposed in the surface error inspection based on reconstruction of NURBS control points. The NURBS surface was analyzed, and the points mostly affected by the control points and the extreme points were defined as the sensitive points of the surface. The machined surface was obtained by reconstruction of NURBS control points using the measurement data at the sensitive points. The machining error of the surface can be achieved by calculating the difference between the machined surface and designed surface. Then the accuracy of the surface can be further evaluated and compensated. The experiment was conducted on a NURBS surface and the machining error of the part was achieved both through the on-machine method and the coordinate measurement method. The uniformly distribution method, the equi-parameter method and the proposed method for measuring points selecting were applied to the NURBS surface. Results showed that the machined surface with the sensitive point method had a better fitting accuracy.

出版日期: 2015-09-10
:  TH 161  
基金资助:

国家自然科学基金资助项目(51175461);高等学校博士学科点专项科研基金资助项目(20120101110055)

通讯作者: 傅建中,男,教授,博导     E-mail: fiz@zju.edu.cn
作者简介: 赖金涛(1988-),男,博士生,从事自由曲面加工误差在机测量的研究. E-mail:ljt88@zju.edu.cn
服务  
把本文推荐给朋友
加入引用管理器
E-mail Alert
RSS
作者相关文章  

引用本文:

赖金涛, 傅建中, 沈洪垚, 甘文峰. 基于NURBS曲面敏感点的曲面检测测点优化[J]. 浙江大学学报(工学版), 10.3785/j.issn.1008-973X.2015.07.001.

LAI Jin-tao, FU Jian-zhong, SHEN Hong-yao, GAN Wen-feng. Measuring points optimization in machining error inspection based on reconstruction of NURBS control points driven by sensitive points. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 10.3785/j.issn.1008-973X.2015.07.001.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2015.07.001        http://www.zjujournals.com/eng/CN/Y2015/V49/I7/1201

1]张学昌, 习俊通, 严隽琪. 基于点云数据的复杂型面数字化检测技术研究[J]. 计算机集成制造系统, 2005(5): 770-774.
ZHANG Xue-chang, XI Jun-tong, YAN Juan-qi. Research on digital measurement technology based on point cloud data of complex surfaces [J]. Computer Integrated Manufacturing Systems, 2005(5): 770-774.
[2]LI Y, GU P. Free-form surface inspection techniques state of the art review [J]. Computer-Aided Design, 2004, 36(13): 1395-1417.
[3]郑惠江. 在机检测中曲面拓扑特征重建和检测点分布关键技术研究[D]. 天津:天津大学,2010: 57-86.
ZHENG Hui-jiang. Research on the key technology of the topological feature reconstruction and sampling point distribution in OMV [D]. Tianjin: Tianjin University, 2010: 57-86.
[4]AINSWORTH I, RISTIC M, BRUJIC D. CAD-based measurement path planning for free-form shapes using contact probes [J]. The International Journal of Advanced Manufacturing Technology, 2000, 16(1): 23-31.
[5]ELKOTT D F, ELMARAGHY H A,ELMARAGHY W H. Automatic sampling for CMM inspection planning of free-form surfaces [J]. International Journal of Production Research, 2002, 40(11): 2653-2676.
[6]LI Y F, LIU Z G. Method for determining the probing points for efficient measurement and reconstruction of freeform surfaces [J]. Measurement Science and Technology, 2003, 14(8): 1280-1288.
[7]WOO T C, LIANG R, HSIEH C C, et al. Efficient sampling for surface measurements [J]. Journal of Manufacturing Systems, 1995, 14(5): 345-354.
[8]OBEIDAT S, RAMAN S. An intelligent sampling method for inspecting free-form surfaces [J]. The International Journal of Advanced Manufacturing Technology, 2009, 40(11/12): 1125-1136.
[9]陈浪,秦大同,谢勇. 基于坐标测量机的曲面自适应采样的网格生成[J]. 重庆大学学报:自然科学版,2001, 24(4): 22-25.
CHEN Lang, QIN Da-tong, XIE Yong. Study on adaptive sampling and mesh generation of free-form surfaces based on coordinate measuring machine [J]. Journal of Chongqing University: Natural Science Edition, 2001, 24(4): 22-25.
[10]罗琦. 基于复合式测头的在机检测数据融合技术研究[D]. 大连:大连海事大学,2012:25-40.
LUO Qi. The study on 3D data registration for surface inspection based on compound probe [D]. Dalian: Dalian Maritime University, 2012: 25-40.
[11]CHEN Y, GAO J, DENG H, et al. Spatial statistical analysis and compensation of machining errors for complex surfaces [J]. Precision Engineering, 2013, 37(1): 203-212.
[12]CHO M W, SEO T I. Inspection planning strategy for the on-machine measurement process based on CAD/CAM/CAI integration [J]. International Journal of Advanced Manufacturing Technology, 2002, 19(8): 607-617.
[13]王益,赖金涛, 傅建中, 等. 基于NURBS 曲面控制点重构的加工误差在机测量方法研究[J]. 浙江大学学报:工学版,2014, 48(10): 1781-1787.
WANG Yi, LAI Jin-tao, FU Jian-zhong, et al. Research on on-machine measurement of machining error based on reconstruction of NURBS control points [J]. Journal of Zhejiang University: Engineering Science, 2014, 48(10): 1781-1787.

[1] 冯刚,付国强,孙磊,傅建中. 多轴数控机床转台几何误差辨识新方法[J]. 浙江大学学报(工学版), 2015, 49(11): 2083-2091.
[2] 付国强,傅建中,沈洪垚. 五轴数控机床旋转轴几何误差辨识新方法[J]. 浙江大学学报(工学版), 2015, 49(5): 848-857.
[3] 何振亚,傅建中,徐月同. 数控机床旋转轴转角定位误差测量方法[J]. 浙江大学学报(工学版), 2015, 49(5): 835-840.
[4] 王益, 赖金涛, 傅建中, 沈洪垚. 基于NURBS控制点重构的加工误差在机测量方法[J]. 浙江大学学报(工学版), 2014, 48(10): 1781-1787.
[5] 邓小雷,傅建中,沈洪垚,陈子辰. 精密数控机床多主轴系统热平衡试验[J]. 浙江大学学报(工学版), 2014, 48(9): 1646-1653.
[6] 金育安, 贺永, 傅建中. NURBS及Hermite混合高速加工插补算法[J]. J4, 2014, 48(4): 641-648.
[7] 计时鸣, 曾晰, 金明生, 谭大鹏. 基于修正Preston方程的气压砂轮加工特性[J]. J4, 2013, 47(7): 1299-1306.
[8] 李晟,姚鑫骅,傅建中. 基于通信质量约束的主轴热监测无线传感器布点优化[J]. J4, 2013, 47(7): 1281-1286.
[9] 郭志敏,蒋君侠,柯映林. 基于定位器的飞机大部件调姿系统静刚度[J]. J4, 2010, 44(11): 2077-2082.
[10] 郭志敏, 蒋君侠, 柯映林. 一种精密三坐标POGO柱设计与精度研究[J]. J4, 2009, 43(09): 1649-1654.