導讀: 國(guo)內外冷鐓機(ji)技術(shu)發(fa)展(zhan)現狀及(ji)規模分(fen)析,1982 年,上海(hai)市標準件(jian)公司研究所和(he)上海(hai)標準件(jian)三廠聯合(he)設(she)計(ji),由(you)上海(hai)標準件(jian)機(ji)械廠制造(zao)(zao)成功 5Z41-24 型 5 工(gong)位(wei)大(da)(da)料(liao)小(xiao)變形多(duo)(duo)工(gong)位(wei)自動(dong)冷鐓機(ji),使材料(liao)開裂率從 15%以上下(xia)(xia)降到 5%以下(xia)(xia)。1988 年,上海(hai)標準件(jian)公司組織設(she)計(ji)、制造(zao)(zao)成功 ZM5-500 型新型大(da)(da)料(liao)小(xiao)變形多(duo)(duo)工(gong)位(wei)自動(dong)冷鐓機(ji),擴大(da)(da)了(le)高強(qiang)度螺母(mu)的(de)產品規格,促進了(le)異形螺母(mu)的(de)發(fa)展(zhan)。 一、中(zhong)國冷鐓機行(xing)業技術發(fa)展現狀
冷(leng)鐓(dui)技術(shu)(shu)是(shi)金(jin)屬加工(gong)(gong)(gong)中(zhong)(zhong)的冷(leng)塑(su)性約束變形(xing)(xing)工(gong)(gong)(gong)藝技術(shu)(shu),是(shi)一種高(gao)精、高(gao)效(xiao)、優良 、低耗、少無切削的先進(jin)生(sheng)產(chan)工(gong)(gong)(gong)藝技術(shu)(shu)。冷(leng)鐓(dui)機(ji)是(shi)應用(yong)冷(leng)鐓(dui)工(gong)(gong)(gong)藝生(sheng)產(chan)各(ge)類(lei)標準件、緊固(gu)件、異形(xing)(xing)件的工(gong)(gong)(gong)作母(mu)機(ji)。隨(sui)著現代工(gong)(gong)(gong)業(ye)的發展以(yi)及制造行(xing)業(ye)競(jing)爭的日益(yi)激烈,冷(leng)鐓(dui)技術(shu)(shu)以(yi)其(qi)經濟高(gao)效(xiao)的工(gong)(gong)(gong)藝特點,已(yi)在機(ji)械、儀(yi)表(biao)、電器、輕工(gong)(gong)(gong)、宇航(hang)、船舶、軍工(gong)(gong)(gong)等(deng)工(gong)(gong)(gong)業(ye)部門中(zhong)(zhong)得到廣泛的應用(yong),成為金(jin)屬塑(su)性體(ti)積成形(xing)(xing)技術(shu)(shu)中(zhong)(zhong)不可缺(que)少的重要加工(gong)(gong)(gong)手(shou)段之一。(一)國外(wai)冷鐓機行業技術(shu)發展現狀(zhuang)多工(gong)位自(zi)動冷(leng)鐓(dui)機(ji)作為一(yi)種自(zi)動化、精密、技術(shu)含量(liang)較高的(de)先(xian)進成形(xing)裝備(bei),在(zai)各(ge)個(ge)產業(ye)都有著廣泛的(de)應用。當前,俄國(guo)、德(de)國(guo)、瑞士、美國(guo)、日本等(deng)國(guo)的(de)企業(ye)生產的(de)冷(leng)鐓(dui)機(ji)處于世(shi)界領先(xian)水平。尤(you)其是德(de)國(guo)在(zai)二戰時(shi)期就應用冷(leng)鐓(dui)工(gong)藝制(zhi)作彈殼(ke)。俄國(guo)也(ye)是對冷(leng)鐓(dui)工(gong)藝研(yan)究、應用最早(zao)的(de)國(guo)家之一(yi)。 在(zai) 1935 年就研(yan)制(zhi)出第一(yi)臺聯合冷(leng)鐓(dui)機(ji) 螺(luo)釘(ding)的(de)成形(xing)-搓絲一(yi)體機(ji)。二十(shi)世(shi)紀四十(shi)年代(dai)前西德(de)就生產出多工(gong)位自(zi)動冷(leng)鐓(dui)機(ji)。多工位全自動冷鐓機發展到(dao)今天己(ji)經做(zuo)到(dao)信息化(hua)控制和冷鐓作業油(you)霧后置處理一體機。美國國民機器公司(National Machinery Company)是(shi)當今被(bei)公認為世界上冷(leng)(leng)成形設備(bei)的(de)設計、開發、制造方面的(de)創(chuang)造者。其(qi)最近(jin)研發的(de) FXP85XL 型號的(de)冷(leng)(leng)鐓(dui)機成形力達 550 噸(dun),切(qie)料直徑達 34mm。出料長度(du)達 360mm。日(ri)本高速(su)冷(leng)鐓(dui)(dui)機,伴隨(sui)著本國汽(qi)車工業的高速(su)發(fa)展,日(ri)本冷(leng)鐓(dui)(dui)機也在 20 世紀 60 年代后迅速(su)發(fa)展,阪(ban)村機械公司(si)新推出的世界大(da)的長桿冷(leng)鐓(dui)(dui)機型號為M1-120,切斷(duan)毛坯直徑 38mm,大(da)加工長度達 430mm,機器重(zhong)量 100 噸。瑞(rui)士哈特布(bu)(HATEBUR)金屬冷鐓成形機 BKA 系列的成形零件大(da)直(zhi)徑(jing)Φ28-Φ64mm,切斷直(zhi)徑(jing) Φ14-Φ36mm,高(gao)生產率為 150 件/分鐘。(二)國外冷鐓機行業技術發展現(xian)狀在(zai)上(shang)(shang)世紀六(liu)十(shi)年(nian)代后期,國(guo)內(nei)(nei)開(kai)始多(duo)(duo)(duo)(duo)工(gong)(gong)(gong)(gong)位(wei)(wei)(wei)自(zi)(zi)(zi)動(dong)(dong)(dong)(dong)冷(leng)鐓(dui)(dui)(dui)機(ji)(ji)(ji)的研(yan)究(jiu)開(kai)發。1968 年(nian),上(shang)(shang)海(hai)(hai)螺(luo)帽五廠自(zi)(zi)(zi)行設(she)計制(zhi)造(zao)(zao)(zao)了(le)(le)(le)國(guo)內(nei)(nei)第一臺(tai)立式(shi) M4 螺(luo)母多(duo)(duo)(duo)(duo)工(gong)(gong)(gong)(gong)位(wei)(wei)(wei)自(zi)(zi)(zi)動(dong)(dong)(dong)(dong)冷(leng)鐓(dui)(dui)(dui)機(ji)(ji)(ji)。1969年(nian),上(shang)(shang)海(hai)(hai)市標準(zhun)件(jian)公司(si)組織(zhi)設(she)計制(zhi)造(zao)(zao)(zao)成(cheng)功(gong)(gong)國(guo)內(nei)(nei)第一臺(tai) Z47—12 型螺(luo)栓(shuan)多(duo)(duo)(duo)(duo)工(gong)(gong)(gong)(gong)位(wei)(wei)(wei)自(zi)(zi)(zi)動(dong)(dong)(dong)(dong)冷(leng)鐓(dui)(dui)(dui)機(ji)(ji)(ji),生產效率提高 6 倍多(duo)(duo)(duo)(duo),材料(liao)(liao)利用(yong)率達到(dao) 90%左(zuo)右。1980 年(nian)起,多(duo)(duo)(duo)(duo)工(gong)(gong)(gong)(gong)位(wei)(wei)(wei)自(zi)(zi)(zi)動(dong)(dong)(dong)(dong)冷(leng)鐓(dui)(dui)(dui)機(ji)(ji)(ji)向節能、高效、高速方向發展(zhan),先后研(yan)制(zhi)成(cheng)功(gong)(gong) Z306 型、Z308 型、Z312型等(deng)多(duo)(duo)(duo)(duo)工(gong)(gong)(gong)(gong)位(wei)(wei)(wei)自(zi)(zi)(zi)動(dong)(dong)(dong)(dong)冷(leng)鐓(dui)(dui)(dui)機(ji)(ji)(ji),并實現了(le)(le)(le)系列化(hua)。同時,采有(you)切六(liu)角頭(tou)和冷(leng)鐓(dui)(dui)(dui)凹穴六(liu)角頭(tou)新工(gong)(gong)(gong)(gong)藝(yi),發展(zhan)了(le)(le)(le)高強度(du)螺(luo)栓(shuan)等(deng)產品(pin)。1982 年(nian),上(shang)(shang)海(hai)(hai)市標準(zhun)件(jian)公司(si)研(yan)究(jiu)所和上(shang)(shang)海(hai)(hai)標準(zhun)件(jian)三廠聯合設(she)計,由上(shang)(shang)海(hai)(hai)標準(zhun)件(jian)機(ji)(ji)(ji)械廠制(zhi)造(zao)(zao)(zao)成(cheng)功(gong)(gong) 5Z41-24 型 5 工(gong)(gong)(gong)(gong)位(wei)(wei)(wei)大料(liao)(liao)小(xiao)變形多(duo)(duo)(duo)(duo)工(gong)(gong)(gong)(gong)位(wei)(wei)(wei)自(zi)(zi)(zi)動(dong)(dong)(dong)(dong)冷(leng)鐓(dui)(dui)(dui)機(ji)(ji)(ji),使材料(liao)(liao)開(kai)裂率從 15%以上(shang)(shang)下降(jiang)到(dao) 5%以下。1988 年(nian),上(shang)(shang)海(hai)(hai)標準(zhun)件(jian)公司(si)組織(zhi)設(she)計、制(zhi)造(zao)(zao)(zao)成(cheng)功(gong)(gong) ZM5-500 型新型大料(liao)(liao)小(xiao)變形多(duo)(duo)(duo)(duo)工(gong)(gong)(gong)(gong)位(wei)(wei)(wei)自(zi)(zi)(zi)動(dong)(dong)(dong)(dong)冷(leng)鐓(dui)(dui)(dui)機(ji)(ji)(ji),擴大了(le)(le)(le)高強度(du)螺(luo)母的產品(pin)規格,促進了(le)(le)(le)異形螺(luo)母的發展(zhan)。國(guo)內有(you)很多廠(chang)商在制(zhi)作(zuo)該(gai)裝備但 90%以上以臺灣春(chun)日機械為母(mu)本“抄(chao)”為主,均無自(zi)主知識產(chan)權。目前比較具有(you)領先(xian)代表(biao)性(xing)的是(shi)(shi)處于行(xing)業重(zhong)要地位的齊(qi)齊(qi)哈爾第(di)二(er)機床廠(chang),特別是(shi)(shi) 2004 年通過與日本阪村機械的合作(zuo)交(jiao)流(liu),相繼開發(fa)出BP-440SS 型(xing)和(he) BP-430SS 型(xing)冷鐓機,其綜合性(xing)能(neng)達到國(guo)際中等水平。但沒有(you)將(jiang)綠色(se)制(zhi)造(zao)理(li)念和(he)方法融入(ru)設計及工(gong)藝中。就總體而言,近(jin)幾(ji)年雖然國(guo)內也采用了一些先(xian)進技術(shu),但相對國(guo)外而言,在自(zi)動化程度、制(zhi)造(zao)能(neng)力(li)、制(zhi)造(zao)精度、生(sheng)產(chan)率及成本控制(zhi)上都(dou)有(you)相當大的差距二(er)、 中國(guo)冷鐓(dui)機行業發展(zhan)狀況 博(bo)思數(shu)據發布的《》表明:近幾年,我國(guo)的(de)一些冷(leng)鐓機(ji)企業(ye)(ye)(ye)在技術上已(yi)有相當的(de)突破(po)。行業(ye)(ye)(ye)企業(ye)(ye)(ye)數量(liang)(liang)眾多,大多數企業(ye)(ye)(ye)生產(chan)規(gui)模較(jiao)小。2012年我國(guo)冷(leng)鐓機(ji)企業(ye)(ye)(ye)數量(liang)(liang)超(chao)過了100家,行業(ye)(ye)(ye)產(chan)量(liang)(liang)達到7.34萬(wan)臺,同比2011年的(de)6.22萬(wan)臺增長18.01%,近幾年我國(guo)冷(leng)鐓機(ji)行業(ye)(ye)(ye)產(chan)量(liang)(liang)情況如下圖(tu)所(suo)示:2007-2012年(nian)我國冷(leng)鐓機行(xing)業(ye)產量統計