基于PSD的大构件双通孔同轴度测量装置设计  

Design of Coaxiality Measuring Device for Large Components with Double Through Holes Based on PSD

作　　者：彭晶晶 杨洪涛[1] Peng Jingjing;Yang Hongtao(School of Mechanical Engineering,Anhui University of Science and Technology,Huainan,Anhui 232001,China;Institute of Environmentally Friendly Materials and Occupational Health,Anhui University of Science and Technology,Wuhu,Anhui 241000,China)

机构地区：[1]安徽理工大学机械工程学院,安徽准南232001 [2]安徽理工大学环境友好材料与职业健康研究院,安徽芜湖241000

出　　处：《应用激光》2022年第8期101-108,共8页Applied Laser

基　　金：安徽理工大学环境友好材料与职业健康研究院研发专项基金资助项目(K2010106);安徽理工大学研究生创新基金资助项目(2021CX2048)。

摘　　要：针对大构件双通孔在测量多个孔截面时的安装误差问题,利用气胀芯轴及丝杠螺母滑台运动装置,提出一种应用位置敏感探测器(PSD)定位原理的同轴度测量装置。使用丝杠螺母滑台作为运动测量部件来采集被测光斑的参数信息,开展对夹具机构组成以及PSD安装与运动装置各个部件的详细结构设计,实现PSD平动和在孔截面内转动,同时构建出上位机软件实现系统登录、数据自动处理及保存。整体装置自动化运行,只需要简单装卸,最后的测量结果可以通过LABVIEW上位机软件可视化显现,并且可以实际显示被测孔在每个位置的中心线与标准中心点的偏差,对同轴度可以量化评价。In view of the installation error of double through holes in large components when measuring cross sections of multiple holes,a coaxial measuring device based on position sensitive detector(PSD)positioning principle is proposed,which uses pneumatic mandrel and sliding table motion device of lead screw and nut.The lead screw and nut slide table is used as the motion measurement part to collect the parameter information of the measured spot.The detailed structure design of the fixture mechanism and the parts of the PSD installation and motion device is carried out to realize the PSD translation and rotation in the hole section.At the same time,the upper computer software is constructed to realize the system login,and automatic data processing and storage.The automatic operation of the whole device requires only simple loading and unloading.The final measurement results can be visualized by LabVIEW host computer software,and the deviation between the center line of the measured hole in each location and the standard center point can be displayed in real terms,and the coaxiality can be quantified and evaluated.

关 键 词：大构件双通孔 位置敏感探测器 机械结构 同轴度 在线测量 

分 类 号：TH741[机械工程—光学工程]