2023年第2期仪表技术与传感器InstrumentTechniqueandSensor2023No.2收稿日期:2022-10-14大工件高精度内孔圆柱度的自动测量方法研究郝健1,2,封善斋1,2,李醒飞1(1.天津大学,天津300072;2.海克斯康制造智能技术(青岛)有限公司,山东青岛266114)摘要:针对非回转体类大尺寸工件的高精度内孔圆柱度测量难题,提出一种新的测量方法。通过对圆柱度误差的评定方法和采点方式的分析对比,确定比对式接触测量方式。以卫星观测跟踪支架为例,确定测量点提取方案采用鸟笼法,评价方法采用最大内接圆柱法,圆柱度测头采用高精度传感器3个截面布置,每个截面圆周均布8个传感器方式,高精度驱动机构带动测头进入内孔自动完成测量,通过圆柱度的软件算法自动计算出圆柱度,并分析测量结果,其测量误差符合测量仪器的最大允许误差为工件公差的1/10原则,测量结果完全符合工件的精度要求。整体测量方案集成三坐标测量机和圆柱度测量专机,实现整个工件的自动化智能检测。关键词:大尺寸工件;高精度内孔;圆柱度;自动测量;三坐标测量机中图分类号:TB92文献标识码:A文章编号:1002-1841(2023)02-0078-06ResearchonAutomaticMeasurementMethodofHighPrecisionCylindricityofInnerHoleforLargeWorkpieceHAOJian1,2,FENGShan-zhai1,2,LIXing-fei1(1.TianjinUniversity,Tianjin300072,China;2.HexagonManufacturingIntelligence(Qingdao)Co.,Ltd.,Qingdao266114,China)Abstract:Anewmeasurementmethodwasproposedthatsolvetheproblemofhighprecisioncylindricitymeasurementofin-nerholefornon-rotatinglargesizeworkpieces.Throughtheanalysisandcomparisonofcylindricityerrorevaluationmethodandsamplingmethod,thecomparativecontactmeasurementmethodwasdetermined.Takingthesatelliteobservationandtrackingsup-portasanexample,thebird-cagemethodwasusedformeasurementpointextractionscheme,themaximuminscribedcylindermethodwasusedastheevaluationmethod,thecylindricitymeasuringheadwasarrangedinthreesectionswithhigh-precisionsen-sors,andthecircumferenceofeachsectionwasevenlydistributedwitheightsensors.Thehigh-precisiondrivingmechanismdrovetheprobeintotheinnerholetoautomaticallycompletethemeasurement,thecylindricitywasautomaticallycalculatedthroughthecylindricitysoftwarealgorithm,andthemeasurem...