基于虚拟光笔的坐标测量系统探针结构的设计

中国机械工程

基于虚拟光笔的坐标测量系统探针结构的设计

张瑞1;刘书桂1;张新2;王有富2

1.天津大学精密测试技术与仪器国家重点实验室，天津，300072
2.九江精密测试技术研究所，九江，332000

出版日期:2016-12-25 发布日期:2016-12-28
基金资助:
国防科工局技术基础渠道科研项目（JSJL2014206B001）

Design of Probe Structure in CMM System Based on Virtual Light-pen

Zhang Rui1;Liu Shugui1;Zhang Xin2;Wang Youfu2

1.State Key Laboratory of Precision Measuring Technology and Instruments,Tianjin University,Tianjin,300072
2.Jiujiang Precision Measuring Technology Research Institute,Jiujiang,Jiangxi,332000

Online:2016-12-25 Published:2016-12-28

摘要/Abstract

摘要： 针对光笔式测量系统模型的特征，基于虚拟光笔，建立了一种新的光笔结构。系统中采用的光笔共有10个控制点，设光笔前面6个控制点所在的平面与后面4个控制点所在的平面之间的距离为DFB。利用三坐标测量机主轴运动的高精度、高稳定性，构造了不同DFB的虚拟光笔。详细说明了虚拟光笔的构造模型，并通过实验证明了DFB参数对系统测量稳定性有着显著的影响，且DFB的最优值为80mm，通过精度对比实验进一步证明了该结论。

关键词: 光笔式坐标测量系统, 探针结构, 测量精度, 虚拟光笔

Abstract: Based on the virtual light-pen, a new type of light-pen structure was built by analyses of the system model's feature. The light-pen adopted in the system had ten control points, and supposed the distance between the front plane where six control points laid and the back plane where other four ones did as DFB. The CMM's main axis could move with high accuracy and stability, then virtual light-pens with different values of DFB were built. The structure model for the virtual light-pen was given in detail. And several experimental results prove that the parameter DFB remarkably affects the stability of the whole system with that DFB's optimal value is as 80mm.

Key words: light-pen coordinate measuring machine(CMM), design of probe structure, measuring accuracy, virtual light-pen

中图分类号:

TH122

张瑞, 刘书桂, 张新, 王有富. 基于虚拟光笔的坐标测量系统探针结构的设计[J]. 中国机械工程.

Zhang Rui, Liu Shugui, Zhang Xin, Wang Youfu. Design of Probe Structure in CMM System Based on Virtual Light-pen[J]. China Mechanical Engineering.

参考文献

[1]黄风山.光笔式单摄像机三维坐标视觉测量系统关键技术的研究[D].天津：天津大学，2005.

[2]Liu Shugui, Peng Kai, Huang Fengshan, et al. A Portable 3D Vision Coordinate Measurement System Using a Light Pen[J]. Key Engineering Materials, 2005, 295/296(1):331-336.

[3]Zhang Xiaofang, Jiang Chengzhi, Xue Tongze, et al. The Light Pen of a No Guide 3D-coordinate Measuring System[J]. Proceedings of SPIE-The International Society for Optical Engineering, 2006, 635742:1-9.

[4]Zhang Fengshou, Jin Jianli, Li Xikai. Research on Light Pen Measuring System[J]. Key Engineering Materials, 2012, 522:490-494.

[5]张晓芳，俞信，蒋诚志，等.无导轨空间坐标测量系统的光笔优化设计[J].北京理工大学学报，2003，23（6）：744-748.

Zhang Xiaofang, Yu Xin, Jiang Chengzhi, et al. Optimization Design of Light Pen for Use in Space Coordinate Measuring Systems without Guideway[J]. Transactions of Beijing Institute of Technology, 2003, 23(6):744-748.

[6]秦大辉，毛婷，刘建军.基于双目立体视觉的手持式光笔三坐标测量系统[J].制造技术与机床，2011（8）：133-136.

Qin Dahui, Mao Ting, Liu Jianjun. Study on 3D-coordinate Measurement Technology Using Handhold Light-pen Based on Binocular Stereoscopic Vision System[J]. Manufacturing Technology & Machine Tool, 2011(8):133-136.

[7]刘书桂, 姜珍珠, 董英华，等.采用移动光靶标的分区域相机标定[J].光学精密工程, 2014, 22（2）：259-265.

Liu Shugui, Jiang Zhenzhu, Dong Yinghua, et al. Sub-regional Camera Calibration Based on Moving Light Target[J]. Optics and Precision Engineering, 2014, 22(2): 259-265.

[8]徐士良，马尔妮.常用算法程序集（C/C++描述）[M].5版.北京：清华大学出版社，2013.

[9]Liu Shugui, Zhang Hongling, Dong Yinghua, et al. Portable Light Pen 3D Vision Coordinate Measuring System-probe Tip Center Calibration[J]. Measurement Science Review, 2013, 13(4):194-199.