數控能大大降低人(ren)工(gong)(gong)及時間成(cheng)(cheng)本，具有(you)生產效率高、產品(pin)精度(du)高、適應新(xin)強、靈活(huo)性好的(de)(de)(de)特點。究其原因(yin)，是(shi)因(yin)為能一次夾裝(zhuang)(zhuang)后自動完成(cheng)(cheng)加(jia)(jia)(jia)工(gong)(gong)動作。其中工(gong)(gong)件(jian)裝(zhuang)(zhuang)夾的(de)(de)(de)不(bu)合理會引起機床的(de)(de)(de)振動或加(jia)(jia)(jia)工(gong)(gong)尺寸出(chu)現偏差，如(ru)果(guo)是(shi)剛(gang)性不(bu)好的(de)(de)(de)工(gong)(gong)件(jian)可(ke)能在加(jia)(jia)(jia)工(gong)(gong)過程中發(fa)生變形，造成(cheng)(cheng)加(jia)(jia)(jia)工(gong)(gong)事故。可(ke)見正確的(de)(de)(de)安裝(zhuang)(zhuang)和如(ru)何夾緊是(shi)很重要的(de)(de)(de)。下面就給大家(jia)講(jiang)解下工(gong)(gong)件(jian)夾裝(zhuang)(zhuang)的(de)(de)(de)一些技巧知識。
加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)中心(xin)加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)的(de)(de)工(gong)(gong)(gong)件(jian)一般較為復(fu)雜，工(gong)(gong)(gong)件(jian)在(zai)一次夾裝(zhuang)后既需要(yao)(yao)(yao)粗加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)又需要(yao)(yao)(yao)精加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)，定位(wei)精度(du)和(he)切削力(li)兩方(fang)(fang)面(mian)(mian)不能被(bei)忽視。加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)中心(xin)與(yu)夾具的(de)(de)作(zuo)用不僅是(shi)夾緊(jin)工(gong)(gong)(gong)件(jian),而且還(huan)要(yao)(yao)(yao)以(yi)(yi)各(ge)個方(fang)(fang)向(xiang)的(de)(de)定位(wei)面(mian)(mian)作(zuo)為參考基準(zhun),確(que)定工(gong)(gong)(gong)件(jian)的(de)(de)加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)編程零點。在(zai)設計中加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)程序時要(yao)(yao)(yao)考慮到夾緊(jin)力(li)靠近主(zhu)要(yao)(yao)(yao)的(de)(de)支撐點或(huo)靠近切削部(bu)位(wei)，盡量不要(yao)(yao)(yao)在(zai)被(bei)加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)孔的(de)(de)上(shang)方(fang)(fang)，不要(yao)(yao)(yao)與(yu)工(gong)(gong)(gong)件(jian)的(de)(de)加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)部(bu)位(wei)和(he)刀(dao)具發生干(gan)涉，安(an)裝(zhuang)夾具的(de)(de)時候，要(yao)(yao)(yao)求工(gong)(gong)(gong)件(jian)對加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)中心(xin)坐標(biao)軸線上(shang)的(de)(de)角度(du)進行準(zhun)確(que)的(de)(de)調(diao)整;夾具中任何的(de)(de)磨損或(huo)污漬都會影響加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)(gong)的(de)(de)精度(du)，所以(yi)(yi)操作(zuo)人員在(zai)裝(zhuang)夾工(gong)(gong)(gong)件(jian)時一定要(yao)(yao)(yao)保持清(qing)潔，并按要(yao)(yao)(yao)求找正(zheng)定位(wei)面(mian)(mian)。
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