一、取斷絲錐機工作原理
以前常規處理絲(si)錐(zhui)、鉆頭等折(zhe)斷(duan)在(zai)工(gong)(gong)具里的方(fang)法無(wu)非是(shi)手工(gong)(gong)慢慢剔、砸碎(sui)、氣焊后擰出,甚(shen)至酸(suan)腐蝕、火焰切割燒等方(fang)法,不但很多時候處理不好(hao),即(ji)使處理完,也會損傷工(gong)(gong)件。因此有了電火花取斷(duan)絲(si)錐(zhui),很好(hao)的解決了這些問題。
電火花取斷絲錐是一種(zhong)利用(yong)脈(mo)沖放電的方式(shi),對各種(zhong)鋼、鐵及硬質(zhi)合(he)金等,進行(xing)高(gao)效加工的電火花設備。
通過電(dian)(dian)(dian)火花(hua)取斷(duan)絲錐在工(gong)具電(dian)(dian)(dian)極和(he)工(gong)件(jian)(jian)之(zhi)間施加脈沖電(dian)(dian)(dian)壓(ya)(達到(dao)間隙中介質的(de)(de)擊(ji)穿電(dian)(dian)(dian)壓(ya))時(shi)(shi),會擊(ji)穿介質,由于放電(dian)(dian)(dian)區(qu)域(yu)很小(xiao),放電(dian)(dian)(dian)時(shi)(shi)間極短,所以,能量高度集中,使(shi)放電(dian)(dian)(dian)區(qu)的(de)(de)溫(wen)度瞬時(shi)(shi)高達10000-12000℃,工(gong)件(jian)(jian)表(biao)面(mian)和(he)工(gong)具電(dian)(dian)(dian)極表(biao)面(mian)的(de)(de)金屬(shu)局部熔(rong)化(hua)(hua)、甚至汽化(hua)(hua)蒸發。局部熔(rong)化(hua)(hua)和(he)汽化(hua)(hua)的(de)(de)金屬(shu)在爆炸(zha)力與震動力的(de)(de)雙重作(zuo)用下拋入工(gong)作(zuo)液(ye)中,從而使(shi)工(gong)件(jian)(jian)表(biao)面(mian)形成一(yi)個微(wei)小(xiao)的(de)(de)凹坑。每次(ci)放電(dian)(dian)(dian)后,介質的(de)(de)絕緣強度自動恢復(fu),等待下一(yi)次(ci)的(de)(de)被擊(ji)穿放電(dian)(dian)(dian)。如(ru)此(ci)反復(fu)使(shi)工(gong)件(jian)(jian)表(biao)面(mian)不斷(duan)被蝕除,并在工(gong)件(jian)(jian)上復(fu)制出工(gong)具電(dian)(dian)(dian)極的(de)(de)形狀,從而達到(dao)成型加工(gong)的(de)(de)目的(de)(de)。
二、取斷絲錐機的使用方法是什么
準備工具:220V電壓的電源、取斷絲錐機(包括主機、磁力吸盤的機頭、連接線、電源線)、電極一根、帶有折斷絲錐或(huo)鉆頭(tou)等硬質合金物的(de)工件(jian)一個、工作夜(水(shui)(shui)或(huo)者(zhe)煤(mei)油)、?8水(shui)(shui)管一根(稍長一點)。準備好工具后(hou),可以按照(zhao)以下步驟進行:
1、將取斷絲錐機機頭與(yu)主機連接并鎖(suo)緊(jin)。
2、將(jiang)工(gong)(gong)件(jian)固(gu)定(如(ru)果工(gong)(gong)件(jian)比較小,可(ke)以將(jiang)工(gong)(gong)件(jian)放(fang)在(zai)(zai)注入適當水(shui)的(de)盆中,以水(shui)完全蓋住(zhu)工(gong)(gong)件(jian)為宜;如(ru)果比較大,且(qie)在(zai)(zai)一(yi)個穩固(gu)的(de)位(wei)置(zhi),可(ke)以將(jiang)機(ji)頭(tou)吸附在(zai)(zai)工(gong)(gong)件(jian)上(shang)),將(jiang)準(zhun)備(bei)好(hao)的(de)電極(ji)(ji)(ji)安裝在(zai)(zai)機(ji)頭(tou)夾鉗中固(gu)定好(hao),然(ran)后(hou)將(jiang)電極(ji)(ji)(ji)對準(zhun)待(dai)加工(gong)(gong)位(wei)置(zhi)。松動(dong)(dong)機(ji)頭(tou)后(hou)面(mian)花螺母,上(shang)下調整機(ji)頭(tou)行程(cheng),以達到最(zui)合適加工(gong)(gong)位(wei)置(zhi)(電極(ji)(ji)(ji)距離折(zhe)斷物(wu)稍有點(dian)距離即可(ke),為的(de)是不讓設備(bei)一(yi)啟動(dong)(dong),電極(ji)(ji)(ji)就(jiu)打(da)在(zai)(zai)折(zhe)斷物(wu)上(shang))。
3、將主(zhu)機與(yu)220V電源連接,并啟(qi)動(dong)(dong)主(zhu)機后面(mian)板(ban)上(shang)的開關按鈕,在(zai)主(zhu)機前面(mian)板(ban)上(shang)啟(qi)動(dong)(dong)電磁吸盤(pan)(如果工件較小(xiao),機頭放在(zai)地面(mian)上(shang)則不需要啟(qi)動(dong)(dong),反之則必須要啟(qi)動(dong)(dong))吸盤(pan)啟(qi)動(dong)(dong),指示燈會亮起。
4、依(yi)次開啟主(zhu)機(ji)面板上的工作按(an)鈕、運作按(an)鈕、進程按(an)鈕,此時設備開始(shi)工作。取(qu)斷(duan)絲錐(zhui)機(ji)取(qu)出斷(duan)絲錐(zhui)的速度(du)較快,一分(fen)鐘(zhong)取(qu)出一毫米。取(qu)出后關閉可(ke)以從后往前依(yi)次按(an)下去。