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中達電通股份有限公司 李 強
摘 要: 介紹自動研磨機的工作原理和控製方案。通過檢測V係xi列lie矢shi量liang型xing變bian頻pin器qi的de電dian流liu大da小xiao來lai判pan斷duan負fu載zai的de變bian化hua情qing況kuang,由you此ci自zi動dong記ji憶yi研yan磨mo的de凸tu點dian位wei置zhi,並bing且qie控kong製zhi伺si服fu在zai以yi凸tu點dian為wei中zhong心xin的de一yi個ge小xiao範fan圍wei內nei不bu斷duan研yan磨mo,到dao達da研yan磨mo設she定ding的de次ci數shu後hou繼ji續xu向xiang前qian自zi動dong尋xun找zhao下xia一yi個ge凸tu點dian。直zhi到dao將jiang整zheng個ge工gong件jian的de凸tu點dian全quan部bu研yan磨mo光guang滑hua為wei止zhi,如ru果guo在zai整zheng個ge研yan磨mo的de過guo程cheng中zhong沒mei有you找zhao到dao任ren何he凸tu點dian,那na麼me研yan磨mo的de行xing程cheng就jiu是shi整zheng個ge工gong件jian的de長chang度du。
關鍵字: 台達機電 研磨機 V係列變頻器 台達伺服、台達人機
1 引言
yanmojishiyongyuyanmogongjianpingmianhuoyuanzhuxingnei,waibiaomiandemochuang。mochuangxizhiyongmojuhuomoliaojiagonggongjiangezhongbiaomiandejichuang,yibanyongyuduilingjiancuiyingbiaomianzuomoxuejiagong。tongchang,mojuxuanzhuanweizhuyundong,gongjianhuomojudeyidongweijingeiyundong。
benwentaolundezidongyanmojishuyuneibiaomianjingjiagongzhuanyongmochuang,zhuyaoshiyonglaijiagonggezhongguanjiandeneibi,tongguobuduandeyanmo,shidegongjianneibiguanghuajunyun。yanmojiagonggongyiguochengrutu1所示。

圖1 研磨加工工藝過程
2 自動化係統設計
自(zi)動(dong)化(hua)係(xi)統(tong)設(she)計(ji)基(ji)於(yu)台(tai)達(da)係(xi)列(lie)機(ji)電(dian)自(zi)動(dong)化(hua)平(ping)台(tai)。研(yan)磨(mo)機(ji)的(de)主(zhu)要(yao)用(yong)途(tu)是(shi)用(yong)來(lai)加(jia)工(gong)管(guan)材(cai)的(de)內(nei)壁(bi),通(tong)過(guo)磨(mo)頭(tou)在(zai)管(guan)壁(bi)內(nei)不(bu)停(ting)的(de)旋(xuan)轉(zhuan)打(da)磨(mo),將(jiang)不(bu)平(ping)滑(hua)的(de)管(guan)壁(bi)打(da)磨(mo)光(guang)滑(hua)。磨(mo)頭(tou)的(de)旋(xuan)轉(zhuan)是(shi)通(tong)過(guo)普(pu)通(tong)三(san)相(xiang)異(yi)步(bu)電(dian)機(ji)加(jia)VFD-055V43A控製、磨台的左右移動是靠一台3KW的伺服電機來拖動。之所以要選用V係列變頻器,是因為控製工藝的要求。
2.1 凸點記憶研磨原理
weiletigaoyanmodexiaolv,yaoqiuzaizhenggedeyanmodeguochengzhong,xuyaoxitongzidongpanduanguancaineibitudiandeweizhi,ruguozhaodaotudian,zelikejiyitudiandeweizhibinggenjuzairenjishangshedingdeyanmodefuduheyanmodecishu,yidangqianjiyidetudianweizhongxin、以(yi)研(yan)磨(mo)幅(fu)度(du)為(wei)半(ban)徑(jing)反(fan)複(fu)研(yan)磨(mo),直(zhi)到(dao)凸(tu)點(dian)被(bei)完(wan)全(quan)磨(mo)平(ping)為(wei)止(zhi)。如(ru)何(he)判(pan)斷(duan)凸(tu)點(dian)的(de)位(wei)置(zhi),則(ze)成(cheng)了(le)控(kong)製(zhi)的(de)關(guan)鍵(jian)所(suo)在(zai)。可(ke)以(yi)想(xiang)象(xiang)一(yi)旦(dan)在(zai)研(yan)磨(mo)的(de)過(guo)程(cheng)中(zhong)遇(yu)到(dao)凸(tu)點(dian),勢(shi)必(bi)負(fu)載(zai)會(hui)加(jia)重(zhong),那(na)麼(me)電(dian)機(ji)的(de)運(yun)行(xing)電(dian)流(liu)會(hui)偏(pian)大(da),正(zheng)是(shi)依(yi)靠(kao)判(pan)斷(duan)電(dian)機(ji)運(yun)行(xing)電(dian)流(liu)的(de)大(da)小(xiao)來(lai)判(pan)斷(duan)凸(tu)點(dian)的(de)位(wei)置(zhi)。而(er)V係列變頻器控製的精度高、機內電流互感器的精度也比較高,因此能夠分辨負載有較小的變化時電流的波動,因此選用V係列變頻器,具體的實現如下:用DVP-32EH00M通過RS485通訊的方式實時讀取VFD-055V43A的運行電流,一旦當前電流超過正常運行電流一定的幅值時,則說明此時已經找到凸點。
2.2 伺服控製原理
伺服用PT模式,由PLC發脈衝+方向控製伺服。同時將伺服的分頻輸出接進PLC,PLCjinxinggaosujishu,yonglaijiyisifudangqiandeweizhi,zaiyanmoqian,sifushouxianwanchenghuilingdedongzuo,huilingwanbigaosujishuqingling。huilingdechufatongguorenjishangdehuilinganniucaozuo。huilingwanbihou,xitonghuizidongjinrudengdaihuidaochushiweizhidezhuangtai,suoweidechushiweizhijiushigongjianderukouweizhi,xuyaoyidongdexingchengjiushiconglingdianweizhidaogongjianderukouweizhizhijiandechangdu。tongguocaozuorenjishangdeqianjinanniukongzhisifudaodachushiweizhi。daodachushiweizhihou,gaosujishuzhizidongjiyixialaidangqiandemaichongshu,ranhouqidongyanmo。yidanfaxianyunxingdianliuchaoguozhengchangyunxingdedianliuyidingfuzhihou,lijijiangdangqiandegaosujishuzhijiyixialai,tongshiyidangqiandeweizhiweizhongxin,jiangfuzhihuansuanchengxiangyingdemaichongshu,ranhoujiangtudianweizhidemaichongjiashangfuzhizhuanhuanguodemaichongdangliang,zaijiangtudianweizhidemaichongjianqufuzhizhuanhuanguodemaichongdangliang,suodedelianggejieguojiushiyitudianweizhongxinqianhouyunxingdeweizhidian。dangjingguofanfudejiciyanmohou,dushanglaidedianliuhuifudaozhengchangdedianliubingqieyanmodecishudaodahou,sifujiangjixuyuanlaidefangxiangxunzhaotudian。ruguozaicizhaodaotudianzezhongfuqianmiansuoshudedongzuo,zhidaozaizhenggegongjiandechangduneizhaobudaotudianweizhi,shuomingguanjiandeyanmoyijingwancheng。sifuzidonghuidaolingdianweizhi,tingzhigongzuo。motoushangtongguoyouyazhuangzhikongzhimotoudepengzhangchengdu,gaicaozuoshiyinweiguancaibutong,guanbineijingchicunyebutong。tongguoguangzhachijiancepengzhangdechengdu,yidandaodashedingdeweizhizeduankaiyoulu,baozhengmotoujintieguancaineibi。
2.3 硬件係統設計
(1)硬件配置:

(2)控製框圖:

(3)設備圖片:

2.4 電氣原理設計
電氣原理如圖2所示。

圖2 電氣原理圖
接線說明:
CN1端子排:Pin11、Pin17、Pin35短接;Pin45、Pin47、Pin49短接引出一根線。公共端接PLC的C0、C1;Pin36、Pin37、Pin41、Pin43分別引出一根線;Pin37接Y1+、Pin36接Y1-;Pin41接Y0+、Pin43接Y0-;Pin21、Pin22、Pin23、Pin25分別引出一根線,接PLC:X0+、X0-、X1+、X1-;SON:通過驅動內將2-10設成:1,伺服始終處於ON的狀態。
CN2端子排:編碼器
3 結束語
自zi動dong研yan磨mo機ji在zai國guo內nei僅jin有you為wei數shu不bu多duo的de生sheng產chan廠chang家jia,因yin此ci該gai設she備bei開kai發fa成cheng功gong後hou,可ke以yi說shuo在zai該gai設she備bei上shang台tai達da的de機ji電dian產chan品pin占zhan得de了le先xian機ji。也ye正zheng因yin為wei成cheng功gong的de開kai發fa,使shi得de該gai設she備bei在zai自zi動dong化hua程cheng度du上shang大da大da縮suo小xiao了le與yu進jin口kou設she備bei的de差cha距ju,同tong時shi又you有you價jia格ge的de優you勢shi,能neng夠gou滿man足zu客ke戶hu要yao求qiu的de效xiao果guo。
中達電通主要為中國最具成長潛力的通信及自動化市場提供設備和服務。其主要產品和服務包括視訊設備、動力係統、寬帶數據和機電自動化四個方麵。中達電通的母公司為世界著名的電子製造跨國企業――台達電子集團,台達集團在江蘇吳江建有規模龐大的生產基地,是全球第一大電源管理係統供貨商和台達變頻器、編碼器、人機界麵、PLC、伺服、溫(wen)控(kong)器(qi)等(deng)機(ji)電(dian)產(chan)品(pin)的(de)製(zhi)造(zao)廠(chang)商(shang)。作(zuo)為(wei)工(gong)控(kong)行(xing)業(ye)內(nei)的(de)知(zhi)名(ming)廠(chang)商(shang),尤(you)其(qi)是(shi)在(zai)國(guo)內(nei)唯(wei)一(yi)一(yi)家(jia)能(neng)將(jiang)機(ji)電(dian)產(chan)品(pin)做(zuo)的(de)如(ru)此(ci)全(quan)麵(mian)的(de)製(zhi)造(zao)廠(chang)家(jia),我(wo)們(men)通(tong)過(guo)應(ying)用(yong)自(zi)己(ji)的(de)產(chan)品(pin)能(neng)夠(gou)為(wei)各(ge)行(xing)各(ge)業(ye)的(de)客(ke)戶(hu)提(ti)供(gong)全(quan)麵(mian)的(de)解(jie)決(jue)方(fang)案(an)。最(zui)佳(jia)的(de)產(chan)品(pin)性(xing)價(jia)比(bi)、周到完善的全國乃至全球聯保服務能夠保證客戶利益。中達電通的服務體係遍布全國。
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