目前市場上的自動繞線機大多采用電磁剎車的方式來控制繞線主軸的停車位置,一般在出廠時自動繞線機廠家都(dou)會將剎(cha)車(che)器調(diao)整到(dao)位,但是(shi)在經過(guo)一段時(shi)間(jian)的(de)運行后,由于(yu)剎(cha)車(che)器的(de)頻繁使(shi)用(yong)和磨損(sun),就(jiu)會出現剎(cha)車(che)器有異響、停車(che)位置出現偏差(cha)等(deng)問題,如果需(xu)要繞制定點纏腳或者需(xu)要跨槽(cao)的(de)線圈(quan)就(jiu)會出現偏差(cha),造成漆包線不(bu)能正常的(de)嵌入槽(cao)內等(deng),所以作為用(yong)戶(hu)掌握一定的(de)處理方法(fa)將更有效的(de)發揮設備(bei)的(de)效率。
首先來分析一下(xia)造成(cheng)停(ting)(ting)車位置不(bu)精確(que)的(de)(de)(de)(de)(de)原因:首先是設(she)備的(de)(de)(de)(de)(de)參數(shu)(shu)設(she)定(ding)(ding)(ding)不(bu)當,繞(rao)線機(ji)在(zai)(zai)正(zheng)常(chang)(chang)運(yun)行狀態下(xia)主(zhu)軸的(de)(de)(de)(de)(de)轉速(su)都很(hen)高,加上(shang)骨架(jia)負載在(zai)(zai)這(zhe)種(zhong)狀態下(xia)主(zhu)軸存在(zai)(zai)很(hen)大的(de)(de)(de)(de)(de)旋轉慣(guan)性,如果(guo)需要從運(yun)轉變(bian)成(cheng)停(ting)(ting)止(zhi),那(nei)么(me)就需要一個緩沖的(de)(de)(de)(de)(de)過程(cheng),這(zhe)個過程(cheng)在(zai)(zai)繞(rao)線機(ji)的(de)(de)(de)(de)(de)設(she)定(ding)(ding)(ding)參數(shu)(shu)中對(dui)應(ying)的(de)(de)(de)(de)(de)是停(ting)(ting)止(zhi)慢車,有(you)(you)許(xu)多(duo)的(de)(de)(de)(de)(de)用戶在(zai)(zai)使用中對(dui)該參數(shu)(shu)不(bu)夠重視,造成(cheng)緩沖的(de)(de)(de)(de)(de)圈數(shu)(shu)不(bu)夠,主(zhu)軸無(wu)法在(zai)(zai)指(zhi)定(ding)(ding)(ding)位置停(ting)(ting)止(zhi),同時也(ye)(ye)加大了(le)對(dui)剎(cha)車器(qi)的(de)(de)(de)(de)(de)沖擊,如果(guo)長時間(jian)的(de)(de)(de)(de)(de)運(yun)行將影(ying)(ying)(ying)響剎(cha)車器(qi)的(de)(de)(de)(de)(de)正(zheng)常(chang)(chang)工(gong)(gong)作(zuo),使其(qi)壽命大大的(de)(de)(de)(de)(de)縮短;其(qi)次是剎(cha)車器(qi)工(gong)(gong)作(zuo)線圈的(de)(de)(de)(de)(de)不(bu)能正(zheng)常(chang)(chang)工(gong)(gong)作(zuo),線圈不(bu)正(zheng)常(chang)(chang)工(gong)(gong)作(zuo)原因也(ye)(ye)是多(duo)方面(mian)的(de)(de)(de)(de)(de)設(she)備輸入電(dian)壓不(bu)穩定(ding)(ding)(ding)會引起各電(dian)氣部件不(bu)能正(zheng)常(chang)(chang)工(gong)(gong)作(zuo),所以一般繞(rao)線機(ji)都有(you)(you)規定(ding)(ding)(ding)的(de)(de)(de)(de)(de)額(e)定(ding)(ding)(ding)工(gong)(gong)作(zuo)電(dian)壓,低(di)于(yu)和(he)高于(yu)額(e)定(ding)(ding)(ding)電(dian)壓都會影(ying)(ying)(ying)響繞(rao)線機(ji)的(de)(de)(de)(de)(de)正(zheng)常(chang)(chang)工(gong)(gong)作(zuo),還有(you)(you)剎(cha)車片也(ye)(ye)會影(ying)(ying)(ying)響繞(rao)線機(ji)的(de)(de)(de)(de)(de)正(zheng)常(chang)(chang)停(ting)(ting)車,電(dian)磁剎(cha)車器(qi)的(de)(de)(de)(de)(de)工(gong)(gong)作(zuo)原理是線圈通(tong)電(dian)后使固(gu)定(ding)(ding)(ding)摩擦(ca)板凸(tu)起與旋轉摩擦(ca)板摩擦(ca)產(chan)生制動(dong)(dong)力,剎(cha)車器(qi)屬于(yu)損耗件由于(yu)長時間(jian)的(de)(de)(de)(de)(de)使用會使摩擦(ca)板有(you)(you)不(bu)同程(cheng)度的(de)(de)(de)(de)(de)磨損,造成(cheng)制動(dong)(dong)力矩減小(xiao),旋轉摩擦(ca)板由于(yu)長時間(jian)受到沖擊其(qi)固(gu)定(ding)(ding)(ding)位置也(ye)(ye)會發(fa)生相應(ying)的(de)(de)(de)(de)(de)改(gai)變(bian)同樣(yang)會影(ying)(ying)(ying)響制動(dong)(dong)。
主軸系統(tong)中加(jia)裝(zhuang)制(zhi)(zhi)(zhi)動(dong)(dong)(dong)器(qi)(qi),常見的(de)制(zhi)(zhi)(zhi)動(dong)(dong)(dong)器(qi)(qi)類型有電磁式(shi)、氣動(dong)(dong)(dong)式(shi)、摩擦式(shi)等幾種類別,其中電磁式(shi)制(zhi)(zhi)(zhi)動(dong)(dong)(dong)器(qi)(qi)是應(ying)用(yong)(yong)(yong)最為廣泛的(de),它具有制(zhi)(zhi)(zhi)動(dong)(dong)(dong)力矩大(da)、響(xiang)應(ying)時間快、安裝(zhuang)便捷等特點,由(you)控(kong)制(zhi)(zhi)(zhi)器(qi)(qi)系統(tong)發生控(kong)制(zhi)(zhi)(zhi)信(xin)號(hao),制(zhi)(zhi)(zhi)動(dong)(dong)(dong)器(qi)(qi)得到信(xin)號(hao)后鎖(suo)制(zhi)(zhi)(zhi)主軸,實(shi)(shi)(shi)現(xian)(xian)精確(que)停(ting)車。利(li)用(yong)(yong)(yong)主軸慣(guan)性(xing)預(yu)控(kong)和變(bian)(bian)頻(pin)器(qi)(qi)直流制(zhi)(zhi)(zhi)動(dong)(dong)(dong)實(shi)(shi)(shi)現(xian)(xian)主軸的(de)精確(que)停(ting)車,這種實(shi)(shi)(shi)現(xian)(xian)原理需要控(kong)制(zhi)(zhi)(zhi)系統(tong)對(dui)設備主軸作慣(guan)性(xing)預(yu)控(kong),提前將(jiang)主軸動(dong)(dong)(dong)力切斷,利(li)用(yong)(yong)(yong)慣(guan)性(xing)加(jia)上變(bian)(bian)頻(pin)器(qi)(qi)直流制(zhi)(zhi)(zhi)動(dong)(dong)(dong)使主軸實(shi)(shi)(shi)現(xian)(xian)精確(que)停(ting)車。
自動(dong)繞(rao)(rao)(rao)線機(ji)一(yi)(yi)般(ban)常(chang)見(jian)的(de)功(gong)能有(you)圈(quan)數(shu)預設(she)、自動(dong)停車(che)、正反向(xiang)繞(rao)(rao)(rao)線、自動(dong)跨(kua)槽(cao)等,在實際使(shi)用(yong)中(zhong),應(ying)注意(yi)幾點首先是(shi)(shi)(shi)(shi)(shi)啟(qi)繞(rao)(rao)(rao)慢(man)車(che)和(he)停止慢(man)車(che),啟(qi)繞(rao)(rao)(rao)慢(man)車(che)這項功(gong)能是(shi)(shi)(shi)(shi)(shi)設(she)備(bei)啟(qi)動(dong)后慢(man)速運轉,目的(de)是(shi)(shi)(shi)(shi)(shi)為了減少對張力(li)結(jie)構和(he)漆包線的(de)沖擊,可以根據實際需要(yao)(yao)設(she)定(ding)一(yi)(yi)般(ban)情(qing)況為1至(zhi)3圈(quan),停車(che)慢(man)車(che)功(gong)能是(shi)(shi)(shi)(shi)(shi)設(she)備(bei)在結(jie)束繞(rao)(rao)(rao)線步序前(qian)慢(man)車(che)運轉,該功(gong)能可以減輕對剎車(che)器的(de)沖擊使(shi)設(she)備(bei)平穩的(de)結(jie)束繞(rao)(rao)(rao)線,特別是(shi)(shi)(shi)(shi)(shi)需要(yao)(yao)精確定(ding)位的(de)繞(rao)(rao)(rao)線工藝(yi),該項參數(shu)必須設(she)定(ding),根據設(she)備(bei)的(de)運行(xing)轉速不(bu)同,參數(shu)也(ye)應(ying)相(xiang)應(ying)調整(zheng)一(yi)(yi)般(ban)情(qing)況為 2至(zhi)5圈(quan),再(zai)次是(shi)(shi)(shi)(shi)(shi)排(pai)線方(fang)向(xiang)和(he)繞(rao)(rao)(rao)線方(fang)向(xiang),這兩項參數(shu)分別是(shi)(shi)(shi)(shi)(shi)對排(pai)線位移方(fang)向(xiang)和(he)主軸(zhou)轉動(dong)方(fang)向(xiang)的(de)設(she)定(ding)。
調試人員熟悉(xi)了(le)設(she)備功能(neng)和(he)參(can)數后,還需(xu)(xu)要對(dui)繞(rao)線(xian)(xian)(xian)(xian)(xian)機的(de)(de)(de)(de)(de)張(zhang)(zhang)(zhang)力(li)(li)(li)調節(jie)和(he)繞(rao)線(xian)(xian)(xian)(xian)(xian)模(mo)具(ju)(ju)(ju)的(de)(de)(de)(de)(de)數據進(jin)行測定,一般情況下(xia)繞(rao)線(xian)(xian)(xian)(xian)(xian)使用(yong)的(de)(de)(de)(de)(de)線(xian)(xian)(xian)(xian)(xian)徑(jing)(jing)越(yue)大(da)張(zhang)(zhang)(zhang)力(li)(li)(li)也就需(xu)(xu)要越(yue)大(da),不同(tong)廠家的(de)(de)(de)(de)(de)設(she)備張(zhang)(zhang)(zhang)力(li)(li)(li)調節(jie)范圍都有(you)所(suo)(suo)差異(yi),使用(yong)鋁線(xian)(xian)(xian)(xian)(xian)和(he)銅線(xian)(xian)(xian)(xian)(xian)所(suo)(suo)需(xu)(xu)要的(de)(de)(de)(de)(de)張(zhang)(zhang)(zhang)力(li)(li)(li)也是(shi)(shi)不同(tong)的(de)(de)(de)(de)(de),同(tong)樣線(xian)(xian)(xian)(xian)(xian)徑(jing)(jing)的(de)(de)(de)(de)(de)鋁線(xian)(xian)(xian)(xian)(xian)所(suo)(suo)需(xu)(xu)要的(de)(de)(de)(de)(de)張(zhang)(zhang)(zhang)力(li)(li)(li)比(bi)銅線(xian)(xian)(xian)(xian)(xian)要小(xiao),張(zhang)(zhang)(zhang)力(li)(li)(li)調節(jie)過大(da)會(hui)(hui)(hui)導致實際(ji)繞(rao)在模(mo)具(ju)(ju)(ju)上的(de)(de)(de)(de)(de)線(xian)(xian)(xian)(xian)(xian)徑(jing)(jing)變小(xiao),如(ru)果是(shi)(shi)細線(xian)(xian)(xian)(xian)(xian)的(de)(de)(de)(de)(de)話,會(hui)(hui)(hui)發生拉斷,打結等現象(xiang),張(zhang)(zhang)(zhang)力(li)(li)(li)過小(xiao)會(hui)(hui)(hui)出現線(xian)(xian)(xian)(xian)(xian)圈浮腫、排線(xian)(xian)(xian)(xian)(xian)凌亂等現象(xiang),所(suo)(suo)以張(zhang)(zhang)(zhang)力(li)(li)(li)調節(jie)是(shi)(shi)很關鍵的(de)(de)(de)(de)(de)設(she)定,不同(tong)的(de)(de)(de)(de)(de)線(xian)(xian)(xian)(xian)(xian)徑(jing)(jing)都有(you)安全張(zhang)(zhang)(zhang)力(li)(li)(li)范圍,調試人員應認真對(dui)照,繞(rao)線(xian)(xian)(xian)(xian)(xian)模(mo)具(ju)(ju)(ju)的(de)(de)(de)(de)(de)測定,需(xu)(xu)要注(zhu)意(yi)的(de)(de)(de)(de)(de)是(shi)(shi)模(mo)具(ju)(ju)(ju)的(de)(de)(de)(de)(de)幅寬和(he)高(gao)度,與繞(rao)線(xian)(xian)(xian)(xian)(xian)棒是(shi)(shi)否匹配,過緊會(hui)(hui)(hui)影(ying)響(xiang)模(mo)具(ju)(ju)(ju)裝卸、過松會(hui)(hui)(hui)導致模(mo)具(ju)(ju)(ju)晃動影(ying)響(xiang)排線(xian)(xian)(xian)(xian)(xian)效(xiao)果。
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