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太倉鈑金加工廠家

太倉鈑金加工廠家

  • 所屬分類:鈑金(jin)加工
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  • 發布時間:2021-11-11 07:55:53
  • 產品概述

鈑金加工工藝過程。

工件落料(liao)

圖(tu)(tu)紙到(dao)手后,根(gen)據(ju)展(zhan)開(kai)圖(tu)(tu)及批量的(de)不(bu)同(tong)選(xuan)擇(ze)不(bu)同(tong)落(luo)料方式(shi),其中有激光,數控(kong)(kong)沖床,剪板(ban)(ban),模具等方式(shi),然(ran)后根(gen)據(ju)圖(tu)(tu)紙做出相應(ying)的(de)展(zhan)開(kai)。數控(kong)(kong)沖床受刀具方面(mian)的(de)影(ying)響,對(dui)于(yu)一(yi)(yi)些(xie)(xie)異形工(gong)(gong)(gong)(gong)件和不(bu)規則孔的(de)加工(gong)(gong)(gong)(gong),在邊緣會出現較(jiao)大的(de)毛(mao)刺,要進(jin)行后期去(qu)毛(mao)刺的(de)處(chu)理,同(tong)時(shi)對(dui)工(gong)(gong)(gong)(gong)件的(de)精(jing)度有一(yi)(yi)定的(de)影(ying)響;激光加工(gong)(gong)(gong)(gong)無(wu)刀具限制,斷面(mian)平整,適合異形工(gong)(gong)(gong)(gong)件的(de)加工(gong)(gong)(gong)(gong),但對(dui)于(yu)小工(gong)(gong)(gong)(gong)件加工(gong)(gong)(gong)(gong)耗時(shi)較(jiao)長。在數控(kong)(kong)和激光旁放置(zhi)工(gong)(gong)(gong)(gong)作臺,利于(yu)板(ban)(ban)料放置(zhi)在機器(qi)上進(jin)行加工(gong)(gong)(gong)(gong),減少抬板(ban)(ban)的(de)工(gong)(gong)(gong)(gong)作量。一(yi)(yi)些(xie)(xie)可以利用(yong)的(de)邊料放置(zhi)在指定的(de)地方,為折(zhe)彎時(shi)試模提(ti)供(gong)材料。

在工件(jian)(jian)落料后,邊(bian)角、毛刺、接(jie)點要進行(xing)必要的(de)(de)修整(打(da)磨處(chu)理),在刀(dao)具接(jie)點處(chu),用平銼(cuo)刀(dao)進行(xing)修整,對于毛刺較大的(de)(de)工件(jian)(jian)用打(da)磨機進行(xing)修整,小內孔接(jie)點處(chu)用相對應的(de)(de)小銼(cuo)刀(dao)修整,以保(bao)證外觀的(de)(de)美觀,同時(shi)外形(xing)的(de)(de)修整也為折彎時(shi)定位(wei)作出了保(bao)證,使折彎時(shi)工件(jian)(jian)靠在折彎機上位(wei)置一致,保(bao)障(zhang)同批(pi)產品尺(chi)寸的(de)(de)一致。

下(xia)道工序

在(zai)落料完(wan)成后(hou),進(jin)入下(xia)道(dao)工(gong)(gong)(gong)序,不同的(de)工(gong)(gong)(gong)件根(gen)據加(jia)工(gong)(gong)(gong)的(de)要求進(jin)入相應的(de)工(gong)(gong)(gong)序。有(you)(you)折(zhe)彎,壓鉚,翻邊(bian)攻絲(si),點焊(han)(han),打凸包,段差,有(you)(you)時(shi)在(zai)折(zhe)彎一兩道(dao)后(hou)要將螺母或(huo)螺柱壓好,其(qi)中(zhong)有(you)(you)模具打凸包和(he)段差的(de)地(di)方要考慮先加(jia)工(gong)(gong)(gong),以免(mian)其(qi)它(ta)工(gong)(gong)(gong)序先加(jia)工(gong)(gong)(gong)后(hou)會發(fa)生(sheng)干涉,不能完(wan)成需要的(de)加(jia)工(gong)(gong)(gong)。在(zai)上蓋或(huo)下(xia)殼上有(you)(you)卡勾(gou)時(shi),如(ru)折(zhe)彎后(hou)不能碰(peng)焊(han)(han)要在(zai)折(zhe)彎之前加(jia)工(gong)(gong)(gong)好。

折(zhe)(zhe)彎(wan)時(shi)要首(shou)先(xian)要根(gen)據圖紙上的(de)(de)尺寸(cun),材(cai)料厚(hou)度確定(ding)折(zhe)(zhe)彎(wan)時(shi)用(yong)的(de)(de)刀具和刀槽(cao),避免產(chan)品與刀具相碰(peng)撞引(yin)起變形是上模選用(yong)的(de)(de)關鍵(在同一(yi)個產(chan)品中,可能會用(yong)到不同型(xing)號(hao)的(de)(de)上模),下模的(de)(de)選用(yong)根(gen)據板材(cai)的(de)(de)厚(hou)度來確定(ding)。其(qi)次是確定(ding)折(zhe)(zhe)彎(wan)的(de)(de)先(xian)后(hou)順序,折(zhe)(zhe)彎(wan)一(yi)般規律是先(xian)內后(hou)外(wai),先(xian)小后(hou)大,先(xian)特(te)殊(shu)后(hou)普通(tong)。有要壓死邊的(de)(de)工件首(shou)先(xian)將工件折(zhe)(zhe)彎(wan)到30°—40°,然后(hou)用(yong)整平模將工件壓死。

壓(ya)(ya)鉚(liu)時,要(yao)考慮(lv)螺柱(zhu)(zhu)的高度選擇相同(tong)不同(tong)的模具(ju),然后對壓(ya)(ya)力機的壓(ya)(ya)力進行調整,以保證螺柱(zhu)(zhu)和工(gong)件(jian)表面平齊(qi),避免螺柱(zhu)(zhu)沒壓(ya)(ya)牢或壓(ya)(ya)出(chu)超(chao)過工(gong)件(jian)面,造(zao)成工(gong)件(jian)報廢。

焊(han)(han)接(jie)有氬弧(hu)焊(han)(han),點(dian)(dian)焊(han)(han),二氧化碳保(bao)護焊(han)(han),手工電弧(hu)焊(han)(han)等(deng),點(dian)(dian)焊(han)(han)首先(xian)要考(kao)慮工件焊(han)(han)接(jie)的位置,在批量生產時考(kao)慮做(zuo)定(ding)位工裝保(bao)證點(dian)(dian)焊(han)(han)位置準確(que)。

為了焊(han)接(jie)牢固(gu),在要焊(han)接(jie)的工件上打(da)凸點(dian),可以使凸點(dian)在通(tong)電焊(han)接(jie)前與(yu)平板(ban)均勻接(jie)觸(chu),以保(bao)證(zheng)(zheng)各點(dian)加熱的一致,同時也可以確定焊(han)接(jie)位(wei)置, 同樣的,要進行焊(han)接(jie),要調好預壓時間(jian)(jian),保(bao)壓時間(jian)(jian),維持時間(jian)(jian),休止時間(jian)(jian),保(bao)證(zheng)(zheng)工件可以點(dian)焊(han)牢固(gu)。

點(dian)焊(han)(han)后在工(gong)(gong)(gong)件(jian)(jian)表(biao)(biao)面會出現焊(han)(han)疤(ba),要用平磨(mo)機進(jin)行(xing)處理,亞弧焊(han)(han)主(zhu)要用于兩工(gong)(gong)(gong)件(jian)(jian)較大(da),又要連接在一(yi)起時,或者一(yi)個(ge)工(gong)(gong)(gong)件(jian)(jian)的邊角處理,達到工(gong)(gong)(gong)件(jian)(jian)表(biao)(biao)面的平整,光滑。氬弧焊(han)(han)時產生的熱量易使工(gong)(gong)(gong)件(jian)(jian)變形,焊(han)(han)接后要用打磨(mo)機和平磨(mo)機進(jin)行(xing)處理,特別是邊角方面較多。

表面處理

工件在折彎,壓鉚(liu)等工序完成后(hou)要(yao)進(jin)(jin)行(xing)(xing)表(biao)(biao)面(mian)處(chu)(chu)(chu)(chu)理(li),不(bu)同(tong)板(ban)(ban)(ban)材表(biao)(biao)面(mian)的處(chu)(chu)(chu)(chu)理(li)方式不(bu)同(tong),冷板(ban)(ban)(ban)加工后(hou)一(yi)般進(jin)(jin)行(xing)(xing)表(biao)(biao)面(mian)電(dian)鍍,電(dian)鍍完后(hou)不(bu)進(jin)(jin)行(xing)(xing)噴(pen)涂(tu)處(chu)(chu)(chu)(chu)理(li),采(cai)用(yong)(yong)的是(shi)進(jin)(jin)行(xing)(xing)磷化(hua)處(chu)(chu)(chu)(chu)理(li),磷化(hua)處(chu)(chu)(chu)(chu)理(li)后(hou)要(yao)進(jin)(jin)行(xing)(xing)噴(pen)涂(tu)處(chu)(chu)(chu)(chu)理(li)。電(dian)鍍板(ban)(ban)(ban)類表(biao)(biao)面(mian)清洗(xi),脫脂(zhi),然(ran)后(hou)進(jin)(jin)行(xing)(xing)噴(pen)涂(tu)。不(bu)銹鋼板(ban)(ban)(ban)(有鏡面(mian)板(ban)(ban)(ban),霧面(mian)板(ban)(ban)(ban),拉(la)絲板(ban)(ban)(ban))是(shi)在折彎前進(jin)(jin)行(xing)(xing)可以(yi)進(jin)(jin)行(xing)(xing)拉(la)絲處(chu)(chu)(chu)(chu)理(li),不(bu)用(yong)(yong)噴(pen)涂(tu),如需噴(pen)涂(tu)要(yao)進(jin)(jin)行(xing)(xing)打毛(mao)處(chu)(chu)(chu)(chu)理(li);鋁板(ban)(ban)(ban)一(yi)般采(cai)用(yong)(yong)氧(yang)化(hua)處(chu)(chu)(chu)(chu)理(li),根據噴(pen)涂(tu)不(bu)同(tong)的顏色選擇不(bu)同(tong)的氧(yang)化(hua)底色,

常(chang)用(yong)的有黑色(se)和本色(se)氧化;鋁板(ban)需噴涂的進行鉻酸鹽(yan)氧化處理后噴涂。表面前處理這樣做可以(yi)使清潔表面,顯著提高(gao)涂膜(mo)附著力,能成倍提高(gao)涂膜(mo)的耐蝕力。清洗的流程先清洗工件,先將工件掛在(zai)流水(shui)線上(shang)(shang),首先經(jing)過(guo)清洗溶(rong)液中(zhong)(合金去油粉(fen)),然后進入清水(shui)中(zhong),其次經(jing)過(guo)噴淋區,再(zai)經(jing)過(guo)烘干區,然后將工件從流水(shui)線上(shang)(shang)取下。

噴(pen)涂處(chu)理

表面(mian)前處(chu)理后(hou),進(jin)入噴(pen)涂工(gong)序,在工(gong)件(jian)要求(qiu)裝配后(hou)噴(pen)涂時,牙或部分導電孔需保(bao)護處(chu)理。

保(bao)護處(chu)理

牙孔(kong)可(ke)查入軟膠棒或擰入螺(luo)釘(ding),需(xu)導電保(bao)(bao)護的(de)要用(yong)高溫膠帶貼(tie)上,大(da)批量的(de)做(zuo)定位(wei)工裝來定位(wei)保(bao)(bao)護,這樣噴(pen)涂(tu)時不會噴(pen)到工件內部,在工件外(wai)表(biao)面(mian)能看到的(de)螺(luo)母(翻邊)孔(kong)處用(yong)螺(luo)釘(ding)保(bao)(bao)護,以免噴(pen)涂(tu)后工件螺(luo)母(翻邊)孔(kong)處需(xu)要回牙。

一些批量大的工件還用(yong)到工裝保護;

工(gong)(gong)(gong)件(jian)不(bu)(bu)裝配(pei)噴(pen)(pen)涂(tu)時,不(bu)(bu)需要噴(pen)(pen)涂(tu)的區域(yu)用(yong)(yong)耐(nai)(nai)(nai)高(gao)(gao)溫(wen)膠(jiao)帶和紙(zhi)片擋(dang)住一些露(lu)在外面(mian)的螺(luo)(luo)母(mu)孔(kong)(kong)用(yong)(yong)螺(luo)(luo)釘或(huo)(huo)耐(nai)(nai)(nai)高(gao)(gao)溫(wen)橡膠(jiao)保(bao)護(hu)。如工(gong)(gong)(gong)件(jian)雙(shuang)面(mian)噴(pen)(pen)涂(tu),用(yong)(yong)同樣方法(fa)保(bao)護(hu)螺(luo)(luo)母(mu)(螺(luo)(luo)柱(zhu))孔(kong)(kong);小(xiao)工(gong)(gong)(gong)件(jian)用(yong)(yong)鉛絲或(huo)(huo)曲別針等物品竄(cuan)在一起后(hou)噴(pen)(pen)涂(tu);一些工(gong)(gong)(gong)件(jian)表面(mian)要求高(gao)(gao),在噴(pen)(pen)涂(tu)前(qian)要進行刮(gua)灰處理;一些工(gong)(gong)(gong)件(jian)在接地符處用(yong)(yong)專用(yong)(yong)耐(nai)(nai)(nai)高(gao)(gao)溫(wen)貼紙(zhi)保(bao)護(hu)。

在進(jin)行噴涂(tu)時(shi),首先工(gong)件掛在流(liu)水線(xian)上,用氣管吹去(qu)表面的粘上的灰塵。進(jin)入(ru)噴涂(tu)區噴涂(tu),噴完(wan)后順著流(liu)水線(xian)進(jin)入(ru)到烘干區,然后從流(liu)水線(xian)上取下噴涂(tu)好的工(gong)件。

還有手工(gong)(gong)噴涂和自動噴涂兩類,這(zhe)樣采(cai)用的工(gong)(gong)裝就不(bu)同(tong)了。

裝(zhuang)配工序(xu)

在噴(pen)涂之(zhi)后(hou)進(jin)(jin)入裝配工(gong)序,裝配前,要(yao)將原(yuan)來噴(pen)涂中(zhong)用的保護(hu)貼(tie)紙撕(si)去,確定零件(jian)內螺紋孔(kong)沒有(you)被(bei)撒(sa)進(jin)(jin)漆或粉,在整個過程中(zhong),要(yao)戴上(shang)手套,避免手上(shang)灰塵附在工(gong)件(jian)上(shang),有(you)些工(gong)件(jian)還要(yao)用氣槍吹干凈。

包裝環節(jie)

裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)配好(hao)之后(hou)就進(jin)(jin)入包裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)環節了,工件檢查后(hou)裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)入專(zhuan)用(yong)(yong)的包裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)袋中進(jin)(jin)行(xing)保(bao)護,一些沒(mei)有專(zhuan)用(yong)(yong)包裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)的工件用(yong)(yong)氣泡(pao)膜等進(jin)(jin)行(xing)包裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)。在包裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)前先將氣泡(pao)膜裁成(cheng)可以包裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)工件的大小(xiao),以免一面(mian)包裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)一面(mian)裁,影響加工速度;批量(liang)大的可定做專(zhuan)用(yong)(yong)紙箱(xiang)或(huo)(huo)氣泡(pao)袋、膠墊、托盤、木箱(xiang)等。包裝(zhuang)(zhuang)(zhuang)(zhuang)(zhuang)好(hao)后(hou)放入紙箱(xiang),然后(hou)在紙箱(xiang)上貼上相應(ying)成(cheng)品或(huo)(huo)半成(cheng)品標簽。


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