怎么挣钱最快

专业视觉方案及设备制造商

视觉赋能工业升级
从制造走向智造

手机:13825262003

电话:0755-23594656

视觉检测设备搜索:

联系我们

未耒智能(深圳)有限公司

曾先生13825262003

公司电话0755-23594656

地址深圳市龙华区观湖街道环观南路茂源工业区B1栋5楼

企业资讯 网站怎么挣钱最快 >> 企业资讯 >> 未耒智能-铆钉缺陷的视觉检测

未耒智能-铆钉缺陷的视觉检测
发表时间:2018-11-29

铆接具有可连接不同材料、连接强度高和稳定性好等优点,在各行各业的应用十分广泛。铆接的性能直接关系到产品的性能,同时,铆钉的质量直接影响了铆接的性能。因此,保证铆钉的质量十分重要,使用有缺陷的铆钉铆接,会影响铆接性能。传统的铆钉检测是通过人工方式进行的,具有检测效率低下和检测的稳定性差等缺点。在大批量的铆钉生产中,人工检测的速度远远不能满足需求,只能对铆钉进行抽样检测。但是,在很多场合,抽样检测并不能保证铆钉的质量,因此,实现铆钉的自动化检测十分必要。本文设计了一种基于计算机视觉的铆钉缺陷检测系统,能够对铆钉进行自动化检测,以满足企业对铆钉检测的需求。


1 系统整体介绍

1.1 铆钉的检测项目

image.


MAODINGDEYIXIECHICUNRUTU1 SUOSHI。MAODINGDEQUEXIANFENWEIBIAOMIANQUEXIANHECHICUNQUEXIAN。DUIYUBIAOMIANQUEXIAN,ZHUYAODUISHANGBIAOMIANJINXINGJIANCE;DUIYUCHICUNQUEXIAN,XUYAOJIANCEZONGZHANGDU、GANZHANGDU、MAOZHIJINGHEGANZHIJING。BIAOMIANQUEXIANHUISHIMAOJIEDEQIANGDUJIANGDI,CHICUNGUODUANTONGYANGYEHUIJIANGDIMAOJIEDEQIANGDU,CHICUNGUOZHANGKENENGHUISUNSHANGBEILIANJIEJIAN。YINCI,BIXUYAOBAOZHENGMAODINGMEIYOUBIAOMIANQUEXIAN,CHICUNZAIYIDINGDEFANWEINEICAINENGJINXINGMAOJIE。


1.2 系统机械结构的组成

怎么挣钱最快GAIXITONGJIXIEJIEGOUYOUCHUANDONGJIGOUHETUXIANGCAIJIJIGOU2 DABUFENZUCHENG。CHUANDONGJIGOUZHUYAOFUZEDUIMAODINGJINXINGSHURUHEDINGWEI,RANGMAODINGNENGYIGUDINGDEWEIZIJINRUXIAYIGEGONGWEI。HOUMIANYOU2 GEJIANCEGONGWEI,YIGEGONGWEISHIBIAOMIANZHILIANGJIANCEGONGWEI,LINGYIGESHICHICUNJIANCEGONGWEI。XITONGJIXIEJIEGOUDEZUCHENGRUTU2 SUOSHI。

image.

2 图像处理

2.1 表面质量检测

怎么挣钱最快DUIYUBIAOMIANZHILIANGJIANCE,ZHEILICAIYONGZHENGMIANGAOJIAODUDEDAGUANGFANGSHI,RUTU3 SUOSHI。

image.

ZHEIZHONGDAGUANGFANGSHI,ZHENGCHANGDEBIAOMIANFANSHEDEGUANGNENGJINRUXIANGJI,QUEXIANBUWEIFANSHEDEGUANGBUNENGJINRUXIANGJI。YINCI,ZAIHUODEDETUXIANGZHONG,ZHENGCHANGBIAOMIANJIAOLIANG,QUEXIANBUFENJIAOAN。QUEXIANJIANCEJIUSHIZHAOCHUTUXIANGZHONGYUZHENGCHANGTUXIANGBUTONGDEDIFANG。GAIXITONGCAIYONGCHAYINGFADUIBIAOMIANQUEXIANJINXINGJIANCE。

SHOUXIAN,YAODEDAOBIAOZHUNMOBANS(i,j)。ZAISHIJIZHONG,BIAOZHUNDEMOBANTUXIANGNANYIHUODE,BUGUO,KEYITONGGUOTONGJIDEFANGFALAIHUODEMOBANTUXIANG。JIANGDUOFUHEGEMAODINGTUXIANGDEPINGJUNZHIZUOWEIBIAOZHUNMOBAN,NENGJIANXIAOYIXIESUIJIWUCHA。DUIYUTONGYIPIMAODING,TAMENDETUXIANGYINGGAIDAZHIXIANGTONG。YINCI,DANGBEIJIANCEDETUXIANGf(i,j)YUMOBANTUXIANGS(i,j)XIANGJIANSHI,XIANGTONGWEIZHIDEXIANGSUHUIDUHENJIEJIN,JIEGUOJIEJINYULING。ZHIYOUZAIQUEXIANBUWEI,XIANGJIANHOUDEJIEGUOCAIHUIJIAODA。TU4 SUOSHIWEIBIAOZHUNMOBAN。

YOUYUTUXIANGBIANYUANHEZAOSHENGDECUNZAI,ZAICHAYINGHOUDEJIEGUOZHONGHENKENENGYOUYIXIAXIZHANGDEWEILUNKUO。ZHEIHUIYINQIDUIQUEXIANDEWUPAN。YINCI,BIXUPAICHUCHAYINGHOUDEDAODEWEILUNKUODEYINGXIANG,XIANGBANFABAWEILUNKUOHEQUEXIANQUFENKAI。YIBANQINGKUANGXIA,CHAYINGZAOCHENGDEWEILUNKUOSHIXIZHANGDE,ERQUEXIANZAI2 GEFANGXIANGSHANGDOUJIAOZHANG。TONGGUOZHEIGETEZHENG,JIUNENGJIANGLIANGZHEQUFENKAI。

怎么挣钱最快GAIXITONGCAIYONGDEFANGFASHISHEZHIYIGEHUIDUYUZHIHEYIGEZHANGDUYUZHI。HUIDUYUZHISHIWEILEPAICHUZAOSHENGDUICHAYINGJIEGUODEGANRAO,YUNXUCHAYINGJIEGUOZAILINGFUJINHENXIAOFANWEINEIBODONG;ZHANGDUYUZHISHIWEILEPAICHUCHAYINGJIEGUOZHONGBIANYUANWEIZHIDEWEILUNKUODEYINGXIANG。ZHANGHEKUANBIXUTONGSHIDAYUZHANGDUYUZHI,CAINENGJIANGZHEIBUFENRENWEISHIQUEXIAN。ZAICHAYINGHOUDEJIEGUOZHONG,CUNZAIHUIDUZHIDAYUHUIDUYUZHIDEQUYUDE,QIEGAIQUYUDEZHANGHEKUANDOUDAYUZHANGDUYUZHI,JIURENWEIGAIMAODINGBIAOMIANYOUQUEXIAN。CHAYINGFADEXIAOGUORUXIATUSUOSHI。

image.


怎么挣钱最快TU6 WEICHAYINGHOUDETUXIANG。CONGTU6 KEYIKANCHU,QUEXIANDEZHANGHEKUANDOUJIAODA,CHAYINGHOUDEBIANYUANHENZHANG,DANSHI,KUANHENDUAN。YINCI,TONGGUOSHANGMIANDEBANFAKEYIHENRONGYIDIJIANCECHUQUEXIAN。


2.2 尺寸检测

对于尺寸检测怎么挣钱最快,首先必须对相机进行标定,求得相机每个像素的像素当量,即一个像素代表的实际物理尺寸。这里采用标定块标定,得到长为L 的标定块在尺寸检测工位的图像,求取图像中标定块的像素长度M,则像素当量k=L/M.采用背光投影的方式得到的图像具有高信噪比,而且边缘锐利。因此,在尺寸检测工位采用背光投影的方式。铆钉的背光图像如图7 所示。

MAODINGDECHICUNJIANCEXUYAODUI4 GECHICUNJINXINGJIANCE。YOUYUZHEI4 GECHICUNJIANCECAIYONGDESHIXIANGTONGDEFANGFA,ZHEILIZHIDUIMAODINGZONGZHANGDUDEJIANCEFANGFAJINXINGSHUOMING,QITADECHICUNJIANCELEISI,JIANGBUZAIZHUISHU。CHANGYONGDEBIANYUANJIANCEFANGFAYOURobert SUANZI、Sobel SUANZI、Prewitt

SUANZIHECanny SUANZIDENG。Robert SUANZIBIANYUANDINGWEIJINGDUGAO,DANWUFAYIZHIZAOSHENG;Sobel SUANZIHEPrewitt SUANZISHIYONGYUHUIDUJIANBIANHEZAOSHENGJIAODUODETUXIANG,DANJIANCECHUDEBIANYUANRONGYICHUXIANDUOXIANGSUKUANDU;CannySUANZIZAIKANGZAOSHENGGANRAOHEJINGZHUNDINGWEIJIANXUNQIUZUIJIAPINGHENGDIAN。BIJIAOSHANGSHUJIZHONGJIANCEFANGFA,Canny SUANZIGENGSHIHECICHUBIANYUANJIANCE。TONGGUOCannySUANZIFENBIEQIUQUMAODINGSHANG、XIABIAOMIANDEBIANYUANDIAN,RANHOUJIANGXIABIAOMIANDENGEBIANYUANDIANTONGGUOZUIXIAOERCHENGFANIHECHENGZHIXIANy=ax+b.QIZHONG,

image.

JISUANSHANGBIAOMIANSUOYOUBIANYUANDIANDAOGAIZHIXIANDEXIANGSUJULI,YONGXIANGSUZHANGDUCHENGYIXIANGSUDANGLIANGJIUDEDAOMAODINGZONGZHANGDUDESHIJIWULIZHANGDU。JIANGQIZHONGDEZUIDAZHIZUOWEIMAODINGDEZONGZHANGDU。


3 系统运行结果

怎么挣钱最快XITONGNENGJIANCECHUMAODINGSHANGBIAOMIANDEQUEXIAN,MAODINGDECHICUNJIANCEWUCHABUDAYU0.02 mm。DANGZAIBIAOMIANQUEXIANJIANCEGONGWEIHUOZHECHICUNJIANCEGONGWEIJIANCEDAOYOUQUEXIANDEMAODINGSHI,ZUIHOUDETICHUZHUANGZHIHUIBAYOUQUEXIANMAODINGTICHU。YINCI,GAIJIANCEXITONGZONGTISHANGNENGMANZUQIYEDUIMAODINGJIANCEDEXUQIU。


4 结束语

该铆钉检测系统从机械结构上保证能自动送料,并且能够对铆钉的位姿进行控制,确保进入检测工位时,铆钉的位姿是一致的。这样,不仅降低了图像处理的难度,还提高了检测的精度。在图像处理部分,采用了差影法来检测铆钉的表面缺陷,并通过设置面积阈值和灰度阈值来排除边缘和噪声的干扰。在尺寸检测时,在ROI 中进行图像处理,提高了处理速度,并通过最小二乘法来拟合铆钉的边缘,提高了系统的尺寸检测怎么挣钱最快精度。相比于传统的人工检测,该检测系统具有一定的应用价值。