摘要
针对几何公差检测自动快速的工业需求和现有基于接触式测量方法的缺陷,本文提出一种非接触式圆心快速提取方法.针对轴类零件,采用两个激光三角法位移传感器,建立了圆心提取数学模型.提出一种基于三坐标测量机的标定方法,并确定了最佳的标定数据选取方式.搭建了激光三角法位移传感器测量实验装置并进行了实验验证,经与三坐标测量机比对,采用测量精度10μm的传感器,可保证圆心要素提取精度在30μm以内.由于采用非接触式测量,整个测量系统更加安全,易于实现自动化操控,可提高检测效率.
To meet the industrial requirement for automatic measurement of geometric tolerance and to 〇 - vercome the weakness of existing contact measurement, this paper proposes a fast and non-contact extrac-tion technology of center coordinates. The mathematical model of central feature extraction is established by using two laser triangulation displacement sensors for the shaft and hole parts. A calibrating method based on three coordinate measuring machines is proposed, so is the best calibration data selection meth-od. The measuring device using laser triangulation displacement sensors was set up and verified experi-mentally. Comparing with the coordinate measuring machine, and by adopting the sensor with precision of 10 μm, the precision of the central feature extraction is ensured to be less than 30 ｜xm. As a result of non-contact measurement, the entire measurement system is more secure, easier to control automatically and the detection efficiency is improved.
出处
《纳米技术与精密工程》
CSCD
北大核心
2017年第5期406-411,共6页
Nanotechnology and Precision Engineering
基金
天津市应用基础与前沿技术研究计划资助项目(14JCZDJC39700
14JCYBJC18600)
科技重大专项资助项目(2016ZX04003001)
关键词
非接触测量
圆心坐标提取
激光位移传感器
non-contact measurement
center coordinates extraction
laser displacement sensor
