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鑄造造型機錯箱的問題及解決方法

返回列表來源:廣東中鑄智能裝備有限公司 發布日期:2017-07-26 瀏覽:4803

鑄造(zao)造(zao)型機錯(cuo)箱的問題及解(jie)決方法,以下(xia)是中鑄機械技術工程師給(gei)您(nin)的專業解(jie)答:

1、鑄造造型機型(xing)(xing)(xing)(xing)(xing)(xing)(xing)板錯位(wei):在(zai)鑄(zhu)造(zao)(zao)工藝設(she)計過程(cheng)中,出(chu)(chu)于(yu)鑄(zhu)件本身結構的(de)問(wen)題(ti),不(bu)能夠(gou)保證分(fen)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)面(mian)的(de)確定(ding)原則第1條:盡可能將鑄(zhu)件的(de)全(quan)部或(huo)大部分(fen)放在(zai)同一箱(xiang)(xiang)內以減少錯型(xing)(xing)(xing)(xing)(xing)(xing)(xing);從(cong)而在(zai)設(she)計時(shi)需(xu)要分(fen)模,上箱(xiang)(xiang)箱(xiang)(xiang)都(dou)有;甚至三箱(xiang)(xiang)造(zao)(zao)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)或(huo)多箱(xiang)(xiang)造(zao)(zao)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)都(dou)有。在(zai)模具(ju)制作(zuo)過程(cheng)中,如果制作(zuo)水(shui)平(ping)不(bu)高,或(huo)者(zhe)模具(ju)裝配水(shui)平(ping)不(bu)高,那么很容易會造(zao)(zao)成(cheng)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)板錯位(wei)。全(quan)自動水(shui)平(ping)造(zao)(zao)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)機所需(xu)要型(xing)(xing)(xing)(xing)(xing)(xing)(xing)板都(dou)是雙面(mian)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)板,型(xing)(xing)(xing)(xing)(xing)(xing)(xing)板一塊兩面(mian)把(ba)模型(xing)(xing)(xing)(xing)(xing)(xing)(xing)上下箱(xiang)(xiang)分(fen)開(kai),在(zai)設(she)計時(shi)并不(bu)是真正把(ba)模型(xing)(xing)(xing)(xing)(xing)(xing)(xing)分(fen)開(kai),只是從(cong)分(fen)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)面(mian)上分(fen)開(kai)上下模型(xing)(xing)(xing)(xing)(xing)(xing)(xing),制作(zuo)完(wan)成(cheng)以后整體鑲(xiang)嵌在(zai)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)板上,模型(xing)(xing)(xing)(xing)(xing)(xing)(xing)就不(bu)會出(chu)(chu)現(xian)錯位(wei),從(cong)而就能夠(gou)避(bi)免型(xing)(xing)(xing)(xing)(xing)(xing)(xing)板錯位(wei)的(de)問(wen)題(ti)。但(dan)這種做法相對(dui)(dui)于(yu)尺寸較(jiao)小(xiao)的(de)模型(xing)(xing)(xing)(xing)(xing)(xing)(xing)比較(jiao)容易實(shi)現(xian),但(dan)對(dui)(dui)于(yu)尺寸較(jiao)大的(de)模型(xing)(xing)(xing)(xing)(xing)(xing)(xing),還(huan)得考慮(lv)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)板與模具(ju)組裝時(shi)要靠(kao)定(ding)位(wei)銷優化設(she)計。


2、鑄造造型機錐(zhui)型(xing)(xing)定(ding)(ding)(ding)(ding)位(wei)(wei)銷(xiao)(xiao)粘(zhan)有(you)(you)砂(sha)(sha)塊:自動(dong)水平造(zao)(zao)型(xing)(xing)機有(you)(you)一(yi)個(ge)(ge)特(te)殊的設(she)(she)計,就是錐(zhui)型(xing)(xing)定(ding)(ding)(ding)(ding)位(wei)(wei)銷(xiao)(xiao)定(ding)(ding)(ding)(ding)位(wei)(wei),這種(zhong)方式方便更(geng)換(huan)(huan)(huan)模(mo)(mo)(mo)板(ban)。模(mo)(mo)(mo)板(ban)不(bu)需要(yao)固定(ding)(ding)(ding)(ding),更(geng)換(huan)(huan)(huan)模(mo)(mo)(mo)板(ban)只需要(yao)抬下(xia)使用完的模(mo)(mo)(mo)板(ban),換(huan)(huan)(huan)上(shang)新的模(mo)(mo)(mo)板(ban)放大托模(mo)(mo)(mo)架上(shang)即可(ke),更(geng)換(huan)(huan)(huan)模(mo)(mo)(mo)板(ban)非(fei)常快。但是,這種(zhong)錐(zhui)型(xing)(xing)定(ding)(ding)(ding)(ding)位(wei)(wei)銷(xiao)(xiao)面(mian)如果清理不(bu)及時(shi)容易(yi)粘(zhan)砂(sha)(sha),造(zao)(zao)型(xing)(xing)時(shi),上(shang)下(xia)箱合模(mo)(mo)(mo)時(shi)由于吹(chui)砂(sha)(sha)不(bu)干凈,定(ding)(ding)(ding)(ding)位(wei)(wei)銷(xiao)(xiao)銷(xiao)(xiao)面(mian)上(shang)存有(you)(you)浮砂(sha)(sha),上(shang)箱和下(xia)箱合箱不(bu)嚴,留有(you)(you)縫(feng)隙,型(xing)(xing)板(ban)與(yu)上(shang)下(xia)砂(sha)(sha)箱之間(jian)不(bu)平行(xing),造(zao)(zao)成(cheng)錯位(wei)(wei)。全自動(dong)水平造(zao)(zao)型(xing)(xing)機型(xing)(xing)板(ban)上(shang)粘(zhan)有(you)(you)砂(sha)(sha)塊,合箱時(shi)模(mo)(mo)(mo)板(ban)與(yu)砂(sha)(sha)箱合上(shang)不(bu),也容易(yi)造(zao)(zao)成(cheng)錯位(wei)(wei)。為了防止錐(zhui)型(xing)(xing)定(ding)(ding)(ding)(ding)位(wei)(wei)銷(xiao)(xiao)錐(zhui)面(mian)粘(zhan)砂(sha)(sha),造(zao)(zao)型(xing)(xing)機上(shang)專門設(she)(she)有(you)(you)吹(chui)砂(sha)(sha)裝(zhuang)置,每完成(cheng)一(yi)個(ge)(ge)循環,使用風槍吹(chui)走浮砂(sha)(sha)。


3、鑄造造型機推型(xing)過(guo)(guo)快(kuai),上下(xia)錯位(wei):一般(ban)情況下(xia),液(ye)壓動力單元(yuan)性能穩定,使(shi)用壽命,動力消(xiao)耗(hao)降低,但是在實際(ji)生(sheng)產(chan)過(guo)(guo)程中(zhong),由(you)于長(chang)期使(shi)用,油缸(gang)密(mi)封圈容(rong)易老化,造成(cheng)密(mi)封不嚴,甚至(zhi)有時由(you)于液(ye)壓泵(beng)站(zhan)冷卻效(xiao)果(guo)差(cha),油溫(wen)過(guo)(guo)高等,還是容(rong)易出現問題(ti)。全自(zi)動水平造型(xing)機在造型(xing)過(guo)(guo)程中(zhong),合(he)(he)箱(xiang)(xiang)(xiang)造型(xing)完成(cheng)以后(hou),首先是脫箱(xiang)(xiang)(xiang)油缸(gang)帶動脫箱(xiang)(xiang)(xiang)板把合(he)(he)箱(xiang)(xiang)(xiang)造型(xing)完成(cheng)砂(sha)胎脫離輔助砂(sha)箱(xiang)(xiang)(xiang),接砂(sha)型(xing)板回落原(yuan)位(wei),此時合(he)(he)箱(xiang)(xiang)(xiang)造型(xing)完成(cheng)以后(hou)的砂(sha)胎需要(yao)從造型(xing)工位(wei)轉移至(zhi)澆(jiao)(jiao)注工位(wei)輸送到澆(jiao)(jiao)注段,如(ru)果(guo)推箱(xiang)(xiang)(xiang)缸(gang)速度過(guo)(guo)快(kuai),推箱(xiang)(xiang)(xiang)板推動下(xia)箱(xiang)(xiang)(xiang)砂(sha)胎就會與(yu)上箱(xiang)(xiang)(xiang)砂(sha)胎晃(huang)動而錯移。


4、鑄造造型機套(tao)箱(xiang)內(nei)(nei)壁(bi)清(qing)掃(sao)(sao)不干凈,粘有砂(sha)塊:搬運套(tao)箱(xiang)放(fang)到(dao)待澆(jiao)注的(de)砂(sha)胎上(shang),套(tao)箱(xiang)內(nei)(nei)壁(bi)殘余砂(sha)塊推(tui)動(dong)(dong)砂(sha)型(xing)(xing)移(yi)動(dong)(dong),套(tao)箱(xiang)內(nei)(nei)壁(bi)與砂(sha)型(xing)(xing)直接(jie)(jie)接(jie)(jie)觸;在(zai)(zai)澆(jiao)注時(shi)(shi)由于砂(sha)型(xing)(xing)內(nei)(nei)腔在(zai)(zai)高溫(wen)時(shi)(shi)水分遷移(yi),在(zai)(zai)砂(sha)型(xing)(xing)外表(biao)面遇到(dao)套(tao)箱(xiang)冷凝成(cheng)(cheng)水珠,粘成(cheng)(cheng)砂(sha)團直接(jie)(jie)吸附在(zai)(zai)套(tao)箱(xiang)內(nei)(nei)壁(bi)上(shang)。正常情況下,在(zai)(zai)從澆(jiao)注完成(cheng)(cheng)的(de)砂(sha)胎上(shang)取下以后(hou),需(xu)用清(qing)掃(sao)(sao)器清(qing)掃(sao)(sao);但是(shi)長期使用后(hou),清(qing)掃(sao)(sao)器把刷(shua)老化(hua)會(hui)造(zao)成(cheng)(cheng)清(qing)掃(sao)(sao)不干凈,致使套(tao)箱(xiang)內(nei)(nei)壁(bi)仍存有砂(sha)團,在(zai)(zai)套(tao)箱(xiang)放(fang)在(zai)(zai)砂(sha)胎上(shang)時(shi)(shi),這些多(duo)余的(de)砂(sha)團會(hui)造(zao)成(cheng)(cheng)砂(sha)胎移(yi)動(dong)(dong),從而使用砂(sha)型(xing)(xing)錯(cuo)位。


5、鑄造造型機起模不平,上箱砂胎傾斜:全自動水平造型機模板放在起模架上,造型完成后,模板脫離時,起模架上的起模支點不在一條水平線上,起模時快慢不一至導致起模高度不一致,起模完成下芯合箱后,下箱砂胎平放在轉移臺車上,上砂胎傾斜;在放套箱時,套箱就會推動上箱砂胎移動。其實這種情況和上面套箱清掃不干凈粘有砂塊一樣,更終結果都是上下箱砂胎位置錯位。
總之,全自動(dong)水平造(zao)型機(ji)在(zai)實際生(sheng)產(chan)中,有(you)的(de)錯箱并(bing)未造(zao)成鑄件(jian)報廢,通過機(ji)械加工(gong)修(xiu)整,或者說在(zai)一(yi)定的(de)錯型值允許范(fan)圍內;但(dan)對于精準生(sheng)產(chan)來說,錯型值越(yue)小越(yue)好,要想達到(dao)這一(yi)目標(biao),還要在(zai)生(sheng)產(chan)過程中不(bu)(bu)斷檢(jian)查這些產(chan)生(sheng)錯型的(de)因(yin)素,不(bu)(bu)要等到(dao)生(sheng)產(chan)出鑄件(jian)后才發現錯型,因(yin)此應該在(zai)生(sheng)產(chan)過程中控(kong)制(zhi)好各個環(huan)節。

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