基于图像处理技术的刀具热变形测量研究

2020 3rd International Conference on Electron Device and Mechanical Engineering (ICEDME) Pub Date : 2020-05-01 DOI:10.1109/ICEDME50972.2020.00168

Kuo Wang, C. Zhao, Qiyin Lv, Xuxu Wang, Shihang Yao, Jun Liu

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引用次数: 2

摘要

针对机床预热过程中刀具变形的问题，设计了一种基于图像处理的刀具热变形测量方案，分析了热误差引起的刀具轴向位置变化与预热时间的关系。采用高速摄像机采集刀具图像，结合matlab软件，采用canny算法提取图像边缘的粗略定位。采用亚像素拟合边缘检测方法精确定位刀具边缘轮廓，即采用最小二乘法拟合刀尖曲线，计算刀具变形大小。刀具变形测量精度可达微米级。

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Tool thermal deformation measurement research based on image processing technology

Aiming at the problem of tool deformation during machine preheating, a tool thermal deformation measurement scheme based on image processing was designed to analyze the relationship between the position change of tool axial due to thermal error and the preheating time.High speed camera was used to collect tool images, and canny algorithm was used to extract rough positioning of the edges of the images combined with matlab software. Subpixel fitting edge detection method was used to precisely locate the tool edge contour, that is, the least square method was used to fit the tool tip curve and calculate the size of tool deformation. The accuracy of tool deformation measurement can reach micron level.

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来源期刊

2020 3rd International Conference on Electron Device and Mechanical Engineering (ICEDME)

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