無(wu)(wu)心磨也叫無(wu)(wu)心磨削,是磨削生(sheng)產加工的一種。有(you)導輪和磨削輪兩個(ge)砂(sha)輪,導輪促(cu)進圓柱(zhu)狀(zhuang)工件在保護(hu)層墊塊上轉動,磨削輪對工件起磨削作用。無(wu)(wu)心磨屬于周磨法。
基本概念
無心研(yan)(yan)削(xue)(xue)法它是(shi)由磨削(xue)(xue)砂(sha)輪(lun),調(diao)整輪(lun)和工(gong)件固(gu)定(ding)支(zhi)架(jia)(固(gu)定(ding)支(zhi)架(jia))三個機構構成(cheng),在(zai)這(zhe)其中磨削(xue)(xue)砂(sha)輪(lun)實(shi)際擔任磨削(xue)(xue)的工(gong)作上,調(diao)整輪(lun)控制工(gong)件的旋(xuan)轉(zhuan),并使工(gong)件造(zao)成(cheng)下(xia)刀速度,針對工(gong)件固(gu)定(ding)支(zhi)架(jia)乃在(zai)磨削(xue)(xue)時支(zhi)點工(gong)件,這(zhe)三種零件可有多種多樣互相配合的方法,但停(ting)止研(yan)(yan)磨之(zhi)外,基(ji)本概(gai)念(nian)上邊一樣。
無(wu)(wu)(wu)心磨(mo)(mo)(mo)(mo)砂(sha)(sha)(sha)輪(lun)(lun)(lun)要(yao)安裝(zhuang)在(zai)無(wu)(wu)(wu)心數控磨(mo)(mo)(mo)(mo)床邊運(yun)用的(de)(de)(de)(de)一(yi)款砂(sha)(sha)(sha)輪(lun)(lun)(lun),它與導輪(lun)(lun)(lun)、墊塊(kuai)互相影響,組成的(de)(de)(de)(de)一(yi)種(zhong)磨(mo)(mo)(mo)(mo)削(xue)(xue)方式,被生(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)加(jia)工(gong)(gong)的(de)(de)(de)(de)工(gong)(gong)件(jian)經墊塊(kuai)托著,由(you)(you)導輪(lun)(lun)(lun)向墊塊(kuai)方向勻速(su)圓周健身運(yun)動而促(cu)進(jin)(jin)工(gong)(gong)件(jian)旋轉時(shi)(shi)由(you)(you)無(wu)(wu)(wu)心砂(sha)(sha)(sha)輪(lun)(lun)(lun)磨(mo)(mo)(mo)(mo)削(xue)(xue),在(zai)磨(mo)(mo)(mo)(mo)削(xue)(xue)工(gong)(gong)件(jian)時(shi)(shi)使用性能(neng)較高(gao),精度(du)(du)相對(dui)也很(hen)高(gao),磨(mo)(mo)(mo)(mo)削(xue)(xue)中(zhong),選擇砂(sha)(sha)(sha)輪(lun)(lun)(lun)粒(li)度(du)(du)分(fen)析也十分(fen)重要(yao),粗粒(li)度(du)(du)的(de)(de)(de)(de)無(wu)(wu)(wu)心磨(mo)(mo)(mo)(mo)砂(sha)(sha)(sha)輪(lun)(lun)(lun)一(yi)般用于(yu)精拋生(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)加(jia)工(gong)(gong),僅有(you)生(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)加(jia)工(gong)(gong)要(yao)求(qiu)談不(bu)(bu)上高(gao)的(de)(de)(de)(de)工(gong)(gong)件(jian),一(yi)般在(zai)生(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)加(jia)工(gong)(gong)時(shi)(shi)為了更好(hao)地能(neng)夠更好(hao)地加(jia)快磨(mo)(mo)(mo)(mo)削(xue)(xue)速(su)度(du)(du),對(dui)生(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)量非常(chang)大的(de)(de)(de)(de)工(gong)(gong)件(jian)一(yi)道生(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)加(jia)工(gong)(gong)全是(shi)會采(cai)用這類方法,它是(shi)由(you)(you)于(yu)它生(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)加(jia)工(gong)(gong)速(su)度(du)(du)比(bi)較快的(de)(de)(de)(de)特點(dian),但工(gong)(gong)件(jian)的(de)(de)(de)(de)光澤(ze)度(du)(du)較低。而細粒(li)度(du)(du)的(de)(de)(de)(de)無(wu)(wu)(wu)心磨(mo)(mo)(mo)(mo)砂(sha)(sha)(sha)輪(lun)(lun)(lun)生(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)加(jia)工(gong)(gong)的(de)(de)(de)(de)工(gong)(gong)件(jian)質(zhi)量精度(du)(du)則(ze)相反(fan),其生(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)加(jia)工(gong)(gong)速(su)度(du)(du)過慢,但被生(sheng)(sheng)(sheng)(sheng)(sheng)產(chan)(chan)加(jia)工(gong)(gong)的(de)(de)(de)(de)工(gong)(gong)件(jian)光澤(ze)度(du)(du)高(gao),如選擇的(de)(de)(de)(de)粒(li)度(du)(du)分(fen)析適(shi)當可確保(bao)鏡面玻璃夾層玻璃預期效果,因此,選擇無(wu)(wu)(wu)心磨(mo)(mo)(mo)(mo)砂(sha)(sha)(sha)輪(lun)(lun)(lun)是(shi)要(yao)根(gen)據工(gong)(gong)件(jian)的(de)(de)(de)(de)專業性制作工(gong)(gong)藝要(yao)求(qiu)具體進(jin)(jin)行選擇。在(zai)這其中(zhong)也包(bao)括砂(sha)(sha)(sha)輪(lun)(lun)(lun)的(de)(de)(de)(de)抗壓強度(du)(du)、組織密(mi)度(du)(du),粒(li)度(du)(du)分(fen)析的(de)(de)(de)(de)選擇。磨(mo)(mo)(mo)(mo)削(xue)(xue)不(bu)(bu)一(yi)樣的(de)(de)(de)(de)工(gong)(gong)件(jian),選擇的(de)(de)(de)(de)切削(xue)(xue)液也各有(you)不(bu)(bu)同(tong)。一(yi)般的(de)(de)(de)(de)鐵質(zhi),大伙兒(er)只(zhi)需用一(yi)般的(de)(de)(de)(de)切削(xue)(xue)液,而磨(mo)(mo)(mo)(mo)鋁類軟質(zhi)零(ling)件(jian)時(shi)(shi)務(wu)必(bi)用車用汽油來(lai)冷切。
方法
1、砂輪(lun)架移(yi)動(dong)無心(xin)數控(kong)磨床(chuang)(chuang),這類方法的(de)(de)無心(xin)數控(kong)磨床(chuang)(chuang)的(de)(de)砂輪(lun)架固定(ding)不變(bian)在床(chuang)(chuang)的(de)(de)的(de)(de)身上,導輪(lun)和(he)固定(ding)支架正中間(jian)可作相對調整移(yi)動(dong),在通磨或進(jin)到(dao)磨削時,導輪(lun)、固定(ding)支架和(he)工件一同作走刀和(he)賠付運(yun)動(dong)健身。
2、砂輪架(jia)攜(xie)帶(dai)式無心數(shu)控(kong)(kong)磨床(chuang),這類(lei)(lei)方法的無心數(shu)控(kong)(kong)磨床(chuang)的固定(ding)(ding)支(zhi)架(jia)固定(ding)(ding)不變(bian)在(zai)床(chuang)的的身上,砂輪架(jia)和導輪架(jia)相對固定(ding)(ding)支(zhi)架(jia)可作調整運動健身,特殊情(qing)況(kuang)下可做走刀(dao)運動健身。這類(lei)(lei)無心數(shu)控(kong)(kong)磨床(chuang)的砂輪、導輪機床(chuang)主軸軸承絕大(da)多數(shu)采用雙支(zhi)撐點結(jie)構(gou)形式。
3、傾斜式無心數控磨床(chuang),這類方法的砂輪、導輪管理處連線與平面(mian)圖傾斜α角。固(gu)定(ding)支架固(gu)定(ding)不變(bian)在床(chuang)的的身(shen)上,砂輪、導輪機床(chuang)主(zhu)軸軸承為雙支撐點結構。導輪架相對固(gu)定(ding)支架可做調整運動(dong)健身(shen),砂輪架作(zuo)走(zou)刀(dao)賠付運動(dong)健身(shen)