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1、摘要提出了电极圆锥内螺纹的图像处理及检测方法。原始灰度图像为CCD采集的经过工件轴线的截面图像,该截面为一个特殊加工的剖分式轴截面,其定位与加工方法同电极内螺纹一样,以此作为抽检来判别电极圆锥内螺纹的几何参数及刀具磨损状况,通过对直径的测量,获得了刀具磨损的相关信息。图像处理过程包括几何变换、灰度级变换、图像平滑、滤波降噪、阈值选取及二值化、边缘提取等,并对不同处理方法进行了比较。在测量尺寸时,使用自编程序计算测量内螺纹的螺距、牙型半角及锥角,测量精度分别达到±0.012mm、±0.17°和±0
2、.018°,满足产品的技术要求,并分析了误差产生的原因。[关键词]:圆锥内螺纹测量误差AbstractAmethod ofthe imageprocessing and measurementofthe internaltaperthread wasproposed.Originalgraylevelimage wasa sectionimagecollected byCCD throughworkpiece'saxes.The sectionwasa specialmachined apart
3、sectioncrossed axes,and itsorientationand processing method were the same asinternalthread ofelectrode.According to the sectionimage,the geometryparameters ofthe workpieceand cutter'sabrasionstatuswere judged, andrelevant informationofcutter'sabrasio
4、nbymeasuring the middle diameter ofthe workpiece wasobtained.Imageprocessing mainlydealtwithgrayscale transformation,imagesmoothing and filtering,noise reducing,threshold selecting,binaryimage,edgedetecting and itsextractingetal,differentprocessing m
5、ethodswere compared.Whenmeasuring,based onthe segmented contourline ofthread,we used the compiled measurement programtocalculate and measure the geometricalparametersofthe internaltaperthread aspitch,halfofthread angle and taperangle.Precisionsofpitc
6、h,halfofthread angle and taperangle reached±0.012 mm,±0.17°and±0.018°.The resultssatisfied withthe technique requirementofproduction.The reasonoferrorwasanalyzed.[Keywords]:Internaltaperthread Measurement Error目录第1章绪论…………………………………………………………………………..4 1
7、 检测的发展现状…………………………………………………………………...4 2 多楔带的简述…………………………………………………………………….13 3 多谢带检测技术………………………………………………………………….15 第2章机构总体设计方案………………………………………..….……………17 2.1测试系统的机构和方案设计…………………………………………………...17 第3章家电成型多谢带模具测量机各部分计算…………………………………21 3.1家电成型多谢带模具测量机设计计算………
8、………………………………...21 第4章轴的设计与计算……………………………………………………………25 4.1轴的种类与特点………………………………………………………………...25 4.2轴的常用材料…………………………………………………………………...25 4.3轴的结构设计…………………………………………………………………...25 4.4轴的强度校核计算……………………………………………………………...26 第5章轴承的计算…………………………………………………………………28
