|本期目录/Table of Contents|

数控刀具线结构光在位测量方法(PDF)

《纳米技术与精密工程》[ISSN:1672-6030/CN:12-1351/O3]

期数:
2017年2期
页码:
106-113
栏目:
精密测量
出版日期:
2017-03-15

文章信息/Info

Title:
NC Tool In-situ Measuring Method Based on Line Structured Light
文章编号:
1672-6030(2017)02-0106-08
作者:
王鹏1 钟小峰1 孙长库1 王中任2 刘海生2
1. 精密测试技术及仪器国家重点实验室(天津大学), 天津300072; 2. 湖北文理学院机械与汽车工程学院, 襄阳441053
Author(s):
Wang Peng1 Zhong Xiaofeng1 Sun Changku1 Wang Zhongren2 Liu Haisheng2
1. State Key Laboratory of Precision Measuring Technology and Instruments (Tianjin University),Tianjin 300072,China; 2. School of Mechanical and Automotive Engineering, Hubei University of Arts and Sciences, Xiangyang 441053, China
关键词:
数控刀具 径向尺寸 在位测量 轴线拟合 偏心修正
Keywords:
NC tool radial dimension in-situ measurement rotary axis fitting eccentricity correction
分类号:
TH744
DOI:
10.13494/j.npe.20160085
文献标识码:
A
摘要:
掌握不同时刻刀具径向尺寸对评估刀具径向磨损量具有极大意义.基于线结构光视觉测量原理,设计了一套可以实现刀具在位测量的系统,可利用系统测得不同时刻的刀具径向尺寸.根据实际测量情况提出了一种基于半径和轴线约束的最小二乘圆柱轴线拟合方法,利用该方法能够实现刀具轴线的快速测量,并利用测得的轴线计算出刀具整体的三维坐标.研究了刀具安装偏心对测量结果造成的影响,并对测量结果进行了修正.实验结果表明,系统能够实现刀具在位测量,测量精度达到0.02 mm,且能很好地获取刀具的形貌特征.
Abstract:
It is significant for evaluating tool radial wear if the radial dimension of the tool can be obtained at different time. An NC tool in-situ measurement system based on line structured light is developed, by which the tool radial dimension can be measured at different time. According to the actual measurement, a least square cylinder axis fitting method based on radius and rotary axis constraint is proposed, which can measure the tool axis rapidly. And the 3D coordinates of the tool can be obtained based on the tool axis equation. The measurement results are corrected on account of the impact caused by eccentric clamp. The experiment results show that NC tool in-situ measurement can be realized with the measurement system proposed, and the system can measure the 3D shape of tool well, with the accuracy better than 0.02 mm.

参考文献/References

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备注/Memo

备注/Memo:
收稿日期: 2017-01-19. 基金项目: 湖北省自然科学基金资助项目(2014CFB637). 作者简介: 王鹏(1982—),男,博士,副教授. 通讯作者: 钟小峰,zhongxiaofeng@tju.edu.cn.
更新日期/Last Update: 2017-12-20