接插片冷沖壓模具設(shè)計-落料沖孔倒裝復合模含15張CAD圖.zip
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模具零件加工工藝卡片
班級 XX 學號XX 姓名 XX
常州機電職業(yè)技術(shù)學院
零件號
材料
W18C
r4V2
編制
機械加工工藝過程
零件名稱
凸模
毛坯種類
型材
審核
生產(chǎn)類型
單件生產(chǎn)
毛坯尺寸
Φ12*45
批準
工序號
工 序 名 稱
工 序 內(nèi) 容
設(shè)備
工 序 簡 圖
1
備料
Φ12mm*45mm
2
熱處理
退火
3
車削
車削Φ6.135,Φ8,Φ10留0.1余量,控制長度在公差范圍內(nèi)
車床
4
熱處理
58-60HRC
5
磨削
磨削Φ8,Φ10至尺寸,Φ6.135留0.02余量
磨床
6
鉗工
研磨Φ6.135至尺寸,研磨Φ8,Φ10臺階面,在不破壞尺寸情況下將零件外形光出
7
檢驗
模具零件加工工藝卡片
班級 XX 學號XX 姓名 XX
常州機電職業(yè)技術(shù)學院
零件號
材料
W18C
r4V2
編制
機械加工工藝過程
零件名稱
凹模
毛坯種類
型材
審核
生產(chǎn)類型
多件生產(chǎn)
毛坯尺寸
Φ8*45
批準
工序號
工 序 名 稱
工 序 內(nèi) 容
設(shè)備
工 序 簡 圖
1
備料
Φ8*45
2
熱處理
退火
3
車削
車削Φ6,Φ4.5,Φ3.14留0.1余量,控制長度在公差范圍內(nèi)
4
熱處理
58-60HRC
5
磨削
磨削Φ6,Φ4.5至尺寸,Φ3.14留0.02余量
6
鉗工
研磨Φ3.14至尺寸,研磨Φ6,Φ4.5臺階面,在不破壞尺寸情況下將零件外形光出
7
檢驗
模具零件加工工藝卡片
班級 XX 學號XX 姓名 XX
常州機電職業(yè)技術(shù)學院
零件號
材料
Cr12MoV
編制
機械加工工藝過程
零件名稱
凸模
毛坯種類
審核
生產(chǎn)類型
毛坯尺寸
125*105*16
批準
工序號
工 序 名 稱
工 序 內(nèi) 容
設(shè)備
工 序 簡 圖
1
備料
125*105*18
2
熱處理
退火
3
銑削
銑削六面至120.1*100.1*16.1
用90度角尺找正
銑床
4
鉗工
按照圖紙加工4*m8螺紋,2*Φ8銷釘孔
5
熱處理
58-60HRC
6
磨削
磨削六面至尺寸,用90度角尺找正
磨床
7
線切割
按圖紙切割出內(nèi)形,留0.02余量
線切割機
8
鉗工
研磨內(nèi)形至尺寸,在不破壞尺寸情況下將零件外形光出
9
檢驗
模具零件加工工藝卡片
班級 XX 學號XX 姓名 XX
常州機電職業(yè)技術(shù)學院
零件號
材料
Cr12MoV
編制
機械加工工藝過程
零件名稱
凸凹模
毛坯種類
審核
生產(chǎn)類型
毛坯尺寸
40*35*41
批準
工序號
工 序 名 稱
工 序 內(nèi) 容
設(shè)備
工 序 簡 圖
1
備料
30*35*42
2
熱處理
退火
3
銑削
銑削六面,至25.5*30.5*40.5用90度角尺找正
銑床
4
銑削
按凸模與凹模實際尺寸,銑削六面單邊留有0.1余量,用90度角尺找正
銑床
5
鉗工
按凸模實際尺寸加工出Φ6,Φ3的通孔留有0.1余量,并加工出Φ4,Φ7臺階孔
6
熱處理
58-62HRC
7
磨削
按凹模實際尺寸磨削外形至尺寸
磨床
8
磨削
按凸模實際尺寸加工出Φ6,Φ3的通孔留有0.02余量
磨床
9
鉗工
研磨Φ6,Φ3孔至尺寸,
10
檢查
目錄
1 分析零件工藝性 1
1.1 沖裁造型 1
1.2 工藝分析 1
1.2.1分析材料的性能 1
1.2.2分析產(chǎn)品結(jié)構(gòu) 1
1.2.3尺寸精度 1
1.3 沖裁方案的確定 2
2 沖壓工藝參數(shù)計算 3
2.1 排樣的設(shè)計 3
2.2排樣方式的確定 3
2.3計算材料利用率 3
2.4沖裁力計算 4
2.5 其他沖壓力計算 4
2.6 沖壓力總和 4
3 選擇壓力設(shè)備和壓力中心的計算 6
3.1 沖壓設(shè)備的選用 6
3.2 壓力中心的計算 6
4 模具結(jié)構(gòu)設(shè)計 7
4.1 模具類型選擇 7
4.2 送料方式 7
4.3 定位方式選擇 7
4.4 卸料和出件方式 7
4.5 導向方式選擇 8
5 凸凹模刃口尺寸計算 9
5.1 沖裁間隙的選擇 9
5.2 計算凸、凹模刃口尺寸 10
6 模具零件結(jié)構(gòu) 12
6.1 凸凹模結(jié)構(gòu)設(shè)計 12
6.2凸模結(jié)構(gòu)設(shè)計 12
6.3 凹模設(shè)計 12
6.4卸料和頂件裝置設(shè)計 12
6.5 推件裝置設(shè)計 13
6.6推桿的設(shè)計 13
6.7推板的設(shè)計 14
6.8 模座的選用 14
6.9 模柄的選用 14
6.10卸料螺釘?shù)倪x用 15
6.11圓柱銷 螺釘?shù)脑O(shè)計 15
7 校核模具高度和壓力機 16
1分析零件工藝性
1.1 沖裁造型
零件圖
它的材質(zhì)為H62黃銅,制裁件的厚度是0.5mm。制件的公差要求IT13,制件是大量生產(chǎn),需考慮加工效率。
1.2 工藝分析
1.2.1分析材料的性能
沖壓材料的強度
材料名稱
抗剪強度(M pa)
抗拉強度(M pa)
伸長率(%)
H62
300
380
20
1.2.2分析產(chǎn)品結(jié)構(gòu)
外形直線構(gòu)成,中間需要沖裁出3個圓形孔,可以直接沖裁,加工難度一般,適合大批量生產(chǎn)。
1.2.3尺寸精度
未注公,差一般都,是選用IT13級,未注粗糙度,用Ra6.3來分析并考慮。
1.3 沖裁方案的確定?
? (1)單工序模:,,,模具制造,容易,且價,格低,但生產(chǎn)效,率低,不符合,大批量生,產(chǎn)要求???
(2)級進模:沖孔-落料連續(xù)沖壓。。
?? (3)復合模:落料-沖孔同時沖壓。
分析,采用倒裝復合模
17
2 沖壓工藝參數(shù)計算
2.1 排樣的設(shè)計
設(shè)計有這三種,方式:
有廢料,的方式
少廢料,的方式
無廢料,的方式
分析,選采用有廢料,的方式
2.搭邊值料厚為,0.5mm,,查手冊確定,搭邊值工作,間a1為,2.2mm,側(cè),面a為2.5,mm。
2.2排樣方式的確定
cad排樣設(shè)計,得圖方案為最佳:
圖3-1 排樣圖
材料利用率計算。
(1) 沖裁件的面積?A=777.67mm2。無法避免的結(jié)構(gòu)廢料Aa=542.53mm2
(2) 條料寬度B=41mm,步距S=32.2mm
2.3計算材料利用率
材料利用率定義為:
η=(A/BS)×100%
=777.67/(41×32.2)×100%
=58.9%
)
式中 η—材料利用率
A—制件的測量面積,測得:777.67 mm2
B—排樣板料的總寬度
S—排樣工件和工件的兩點的距離
2.4沖裁力計算
常用的沖壓力計算公式:
或 (3-3)
計算結(jié)果如下:
(1)查相關(guān)手冊得:H62鋼材的σb=380/MPa;??????
(2)材料厚度t=0.5mm; s?
(3)落料周邊長度L1=112.43mm沖孔周邊長度L2=37.32mm
(4)沖裁力F=KL1+L2tσb=36988.25N
2.5 其他沖壓力計算
板厚為0.5mm的黃銅,推件力系數(shù)卸料力系數(shù)?Kx=0.06;頂件力系數(shù)Kd=0.09.
F卸=KxF=2219.28N
F頂=KdF=3328.95N
2.6 沖壓力總和
本次制件總的沖壓力:
F總=F+F卸+F頂=40536.48N=40.6KN
3 選擇壓力設(shè)備和壓力中心的計算
3.1 沖壓設(shè)備的選用
查手冊,知,安全系,數(shù)為1.3。由,于P≥1.3F總=52.78kN,,所以所選壓力機的公稱壓力應(yīng)大于52.78kN.
考慮到開式可,傾壓力機機,身為可傾,式結(jié)構(gòu),傾斜,時便于沖,壓件或廢料,從模具上滑下,,可免去取件的步驟,有利于提高生產(chǎn)效率。并且開式的結(jié)構(gòu)便于工人進行手動送料等操作,故選擇可傾壓力機。
由手冊查得J23-6.3壓力機的公稱壓力63k/N,滿足使用要求。故選擇J23-6.3壓力計機,主要參數(shù)如下:?
公稱,壓力
63KN?;
滑塊行程
50mm;
立柱距離?
150mm
滑塊行程次數(shù)
160次/min?
最大閉合高度
150mm?
工作臺尺寸
前后200mm;左右310m
閉合高度調(diào)節(jié)量
35mm?
3.2 壓力中心的計算
公式
計算 得沖壓中心
4 模具結(jié)構(gòu)設(shè)計
4.1 模具類型選擇
選擇最優(yōu)的方案是使用倒裝復合模來生產(chǎn)該產(chǎn)品。
4.2 送料方式
一般沖壓模,具設(shè)計的,三種送料,方式為,:導料板,送料、導,向銷送料,、以及另一,種浮頂導,向銷送料,方式。
倒裝復合模采用導料銷送料。導料銷排列的外形一般如下圖5-1所示:
4.3 定位方式選擇
一般沖壓模,具設(shè)計的二,種定位方式,為:擋料銷,定位、以及,另一種側(cè),刃定位,方式。
本復合,模選用擋料,銷工序
擋料銷排,列的外形,一般如,下圖5-1所示
導料銷與擋料銷位置布置
4.4 卸料和出件方式
卸料裝,置主要可,以分為(,1)固定,卸料裝置,??(2),彈壓卸,料裝置?
其中固,定卸料,裝置的卸料,力大,卸料,可靠,適用于,沖裁板料,較厚(t>0.5m,m),平面度,要求不高,的場合,;彈壓卸料,裝置的卸,料力小,但它,既起卸料,作用,又起壓料,作用,所得沖,裁零件質(zhì),量較好,,平面度,較高,適用,于板料較,薄的場合(t<1.5mm)。
綜合考慮沖裁零件的要求,沖裁件尺寸較小,卸料力較小,彈壓卸料裝置完全能夠滿足卸料力的要求,并且由于選擇倒裝復合模進行生產(chǎn),提高生產(chǎn)效率的同時,導致沖裁件的平直度受影響,故應(yīng)選擇彈壓卸料裝置,彌補其平直度。?確定卸料裝置為彈壓卸料裝置。
???為了保證成型件的平整與推件可靠,建議采用剛性推出的方法,在推板上布置打桿,以確保推件的可靠,成型后打桿及時將沖裁件推出。
4.5 導向方式選擇
導柱模架
中間導柱,上、下模座,:節(jié)省材料,(省成本),,比較適,合對稱,的零件
后側(cè)導,柱上、下模,座 :常用,的一種模,架,設(shè)計時,候比較零,活多變,而且容易,送料和取,出工件。
對角導,柱上、下模座, :對中,性良好,有,利于導向。
四角導,柱上、下模座:使用的成本比較大,一般適用于外形較大的零件
根據(jù)國家標,準,導柱模模,架主要分,為中間導,柱模架、后側(cè),導柱模架、,對角導柱,模架、四導,柱模架,,考慮到復合模對剛性與工作平穩(wěn)度有較高要求,故后側(cè)導柱模架不符合要求;四導柱模架精度遠大于所要求的精度,并且成本較高,故也不符合要求。中間導柱模架與對角導柱模架都符合生產(chǎn)的要求,從中選擇中間導柱模架。
根據(jù)《冷沖模設(shè)計資料與指導》表4-11中GB/T?8070規(guī)定的中間導柱模架規(guī)格。由凹模外形尺寸為H×B×L=15×82.2×86mm,壓力機最大封閉高度150mm,封閉高度調(diào)節(jié)量35mm,選定凹模周界為125×100mm的中間導柱模架。
查得:?
????上模座規(guī)格125×100×30(GB/T2855.1)??????
下模座規(guī)格?125×100×35(GB/T2855.1)??????
導柱規(guī)格?22×120;25×12(GB/T4169.2-1984)??????
導套規(guī)格?22×65×23;?25×35×23(GB/T4169.2-1984)?
5 凸凹模刃口尺寸計算
5.1 沖裁間隙的選擇
。
如下表6-1所示:
材料間隙表
此次沖裁,模雙邊間隙,材料間,隙為0.025-0.035
5.2 計算凸、凹模刃口尺寸
刃口加工方式選擇
根據(jù)凸、凹模加工方式的不同,刃口尺寸的計算方法主要分為:分開加工法和配做法???紤]到分開加工法主要針對圓形或簡單規(guī)則形狀的沖裁件,并且模具的制造公差小,模具制造困難,成本高,而配做法工藝簡單,制造容易,模具的間隙由配制保證,可適當放大基準件的制造公差,目前應(yīng)用較為廣泛。綜上所述加工方法選用配做法。
刃口尺寸計算
落料以凹模尺寸為基準,沖孔以凸模尺寸為基準。因模具為復合模,要同時進行沖孔與落料。因此要分別進行落料凹模與沖孔凸模的尺寸計算。
由手冊可得,厚度為0.5mm的H62鋼材的初始雙面間隙取值范圍為
Zmin=0.025mm Zmax=0.035mm
落料凹模與凸凹模外輪廓計算
工件尺寸圖 凹模圖
因零件精度為IT13級,磨損系數(shù)見《典型冷沖模設(shè)計》表1-16?????由磨損圖可知,磨損后變大的尺寸代入公式
Ad=(Amax-x?)0+?4
磨損后變小的尺寸代入公式
Bd=(Bmin-x?)-?40
凸凹模外輪廓的尺寸,按照凹模與凸模的實際尺寸配制,保證雙面間隙為0.025mm~0.035mm
沖孔凸模與凸凹模內(nèi)輪廓計算
工件尺寸圖 磨損圖
由磨損圖可知,磨損后變小的尺寸:
aP1=(Bp1min-x?)-?40
aP2=(Bp2min-x?)-?40
6 模具零件結(jié)構(gòu)
6.1 凸凹模結(jié)構(gòu)設(shè)計
凸凹模根據(jù)凹模和凸模實際加工尺寸進行配做,保證雙面間隙值Zmin=0.025—Zmax=0.035,與凸凹模固定板進行臺階式配合固定。
6.2凸模結(jié)構(gòu)設(shè)計
凸模結(jié)構(gòu)形式
圓凸模的,結(jié)構(gòu)形式,主要分為,標準圓凸,模,凸緣,式圓凸,模,直通,式凸模,,由于沖裁件,內(nèi)孔為圓形,,形狀簡單,,沖裁力不大,,故凸緣式圓,凸模與直通,式凸模不符,合要求???,慮到標準,圓凸模的,配合段占,據(jù)整個凸,模長度的,一半,將,導致凸模,固定板過,厚,于是,決定不采用標,準件,自行,加工成臺階,式軸。凸模的,固定采用凸模,固定板配,合定位,凸模,固定板與墊,板壓緊的方,式。利于,拆裝與更換。
凸模長度計算
根據(jù)模具,結(jié)構(gòu),凸模,長度等于凸,模固定板、中,間板、凹模厚,度之和。由,于凸凹模將,會進入凹模,板一段距離,,再加上,一定的增加,長度(凸模,進入凹模的,深度0.5mm)。,即凸模長,度=h=38.5mm
6.3 凹模設(shè)計
凹模結(jié)構(gòu)形式與固定方式
凹模的結(jié)構(gòu)主要分為整體式和鑲拼式,由于沖裁件形狀簡單,尺寸較小,沖裁所用的凹模選定為整體式。?由于采用整體式的凹模版,凹模板與上模座之間采用螺釘鎖緊,銷釘定位。
凹模內(nèi)形的結(jié)構(gòu)形式
凹??卓诘慕Y(jié)構(gòu)形式主要分為:全直壁型、階梯形直刃壁型、斜刃壁凹模??紤]到采用倒裝復合模,凹模在上模,要從凹模內(nèi)進行推件,故斜刃壁凹模、階梯形直刃壁型孔不符合要求,凹模孔口的結(jié)構(gòu)形式選定為全直壁型。
6.4卸料和頂件裝置設(shè)計
(1) 卸料裝置設(shè)計
彈性元件的選用
1)初定橡膠數(shù)量n?。為確保卸料平穩(wěn),擬選n=2矩形橡膠
2)橡膠自由高度
H0=(3.5—4)H
H工 =t+1+(4—6)修
=0.5+1+4=5.5
H0=22mm
3)橡膠裝配高度
H裝=(0.85—0.9)H0
=0.9×22
=20mm
4)確定單個橡膠截面積A
A1=(FX/P)/2=(1315/1.1)/2=598mm2
6.5 推件裝置設(shè)計
推件塊的設(shè)計
推件塊的外輪廓與沖裁件的外輪廓一致,為了保證推件塊的推出可靠,推件塊與凹模配合的部分要比凹模略長1mm,即
L1=h+1=22mm
設(shè)計推件塊的凸緣部分時,要保證板料分離時,推件塊離凸模固定板仍有10mm的安全距離,已知限位板厚度為16mm,推件塊已比凹模厚度略長1mm,材料板厚1mm,因此凸緣的長度
L2=16-10-1-1=4mm
要完全包絡(luò)推件塊外輪廓,于是將凸緣的表面尺寸設(shè)計為55×72mm的矩形。同時,為保證推出平穩(wěn),無偏心載荷,矩形的幾何中心位于工件的壓力中心。
6.6推桿的設(shè)計
選用四根推桿。為了推出可靠,推桿的長度要略大于上模座孔深、中間板、墊板的厚度之和。再減去推板和推件塊的凸緣厚度。?????
即 L>28mm 。推桿的規(guī)格為6×28。
6.7推板的設(shè)計
直徑為50mm,厚度為6mm。
A50
6.8 模座的選用
選用中間,導柱模架。
?模板的規(guī)格尺寸與材料選用如下:
模架組合
模板
規(guī)格(L×B×H)
材料
上模座
125×100×30
HT200
墊板
125×100×6
45
中間板
125×100×6
45
凸模固定板
125×100×16
Q235
凹模
125×100×16
Cr12MoV
卸料板
125×100×4
45
墊板
125×100×4
45
下模座
125×100×35
HT200
推板
A50
45
6.9 模柄的選用
模柄主要分為旋入式、壓入式、凸緣式。選定模柄為凸緣式模柄。?
根據(jù)《冷沖模設(shè)計與指導》表4-31選定模柄孔尺寸(直徑為25mm深度為63mm)壓入上模座的厚度18mm,選定規(guī)格為25×63的凸緣式模柄。?
由于需要設(shè)置打桿,故選擇B型模柄。其模柄孔尺寸為直徑25mm,模柄高度為63mm,所以選定打桿直徑為10mm,長度為70mm的打桿。
6.10卸料螺釘?shù)倪x用
根據(jù)GB/T65-2000,,螺釘?shù)某叽?,?guī)格為M8x50
6.11圓柱銷 螺釘?shù)脑O(shè)計
上模:內(nèi)六角,螺,釘M8×60
下,模:內(nèi),六角,螺釘M8×40。
上模:選擇圓柱,銷Φ8×60
下,模:選擇圓,柱銷Φ8×45。
7 校核模具高度和壓力機
設(shè)計的模具能正確地安裝到壓力機上,需對模具進行高度校核。模具高度等于各板的厚度加上留出的安全距離10mm與板厚0.5mm。
H總=148
?壓力機最大閉合高度150mm,閉合高度調(diào)節(jié)量35mm。????
?由于
(150-35)mm≤H總≤150mm
故模具高度滿足要求
According to the archaeological discovery, more than 2000 years ago, the Chinese already stamping mould was used to make the bronze ware, which proved the leading world in the world of stamping molding and stamping die. In 1953, changchun first car factory established the stamping workshop in China for the first time, and the factory began making car covers in 1958. China began to produce precision machines in the 1960s. After a long period of development, China has formed more than 3 billion yuan (not including the statistics of Hong Kong, Australia and Taiwan, and the same. Production capacity of all kinds of stamping die. service
First, stamping mould market situation
China's stamping mould has been very developed in terms of quantity, quality, technology and ability, but the gap is still large compared with the advanced level of the national economy, and some large, sophisticated, complex and long life models are still heavily imported each year, especially the covering parts of the high-end cars, which are still mainly dependent on imports. Some of the simple stamping models have been oversupplied and the market is competitive.
The introduction of stamping mould market in China in 2004 is as follows:
According to the statistics released by the China mould industry association, the stamping die in China in 2004 was about 22 billion yuan, including $75 billion, or about 620 million yuan. service
In 2004, China's total import stamping die was 561 million dollars, or 4.66 billion yuan, according to customs statistics. From these figures, the total stamping mould market in China is about 2666 billion yuan in 2004. The total demand for domestic markets is 26.40 billion yuan, and the total supply is about 213.8 billion yuan, and the market satisfaction rate is 82%. In the above supply and demand, most of the molds are high technical content, and the export mould is mostly a low level of the medium and low mold, so the high quality of the medium and high grade mould market satisfies the rate below the overall satisfaction rate of the stamping die, the development of these molds has been delayed by the production of the shock pressure parts, and the low level of the low-grade mould market satisfaction rate is higher than the overall satisfaction rate of the stamping die market. The second is that the price of the mould in our country is low and low, and it has a certain competitiveness, so its prospect in the international market is bullish, and the export of stamping die in 2005 is $146 million, which can be noted by 94.7% in 2004. In recent years, Hong Kong, Taiwan and foreign enterprises have developed rapidly in our country, and there is no specific statistical data on the self-produced stamping die of these enterprises, so they have not been included in the above figures.
Ii. Stamping die level condition
In recent years, the level of stamping die in China has been greatly improved. Large stamping molds have been able to produce a single set of 50 tons of molds. The cover of the medium gear car is also able to produce in the domestic mold. The precision reaches 1~ 2mmm, and the number of other enterprises in the country has been able to produce. The surface roughness reaches ra1.5m, large size ((300mm)), and the thickness plate in the medium is also high. service
The technology of the die cad/cam
The development of mould cad/cam technology has been developing for more than 20 years. The precision die cad/cam system, which was completed by the original Chinese college and wuhan 733 factory in 1984, is the first self-developed mould cad/cam system in our country. The cold punch and CAM system, which is the first punching die cad/cam system, is the first punching die cad/cam system in China. The cold punching die cad/cam system developed by Shanghai jiaotong university was also completed in the same year. Since the 1990s, cad/cam technology has been adopted in the design and manufacture of domestic auto industry. The national science and technology commission 863 plan to use dongfeng motor co., LTD as the model factory of cims, which is based on the technology of central China, and the development of the car body and the covering parts mould cad/capp/cam integration system was identified in early 1996. During this period, the auto mould center introduced the workstations and the cad/cam software system, and the application of the mould design in the mould design was made. In 1997, steam introduced the process computer simulation cae software and began to be used for production. service
In the 21st century, cad/cam technology has become more and more popular, and the stamping die enterprises with certain production capacity have the cad/cam technology. Some of the key enterprises also have the ability of each cae. service
Mould cad/cam technology can significantly shorten the design and manufacturing cycle of die, reduce production cost, improve product quality, and become the consensus of people. During the "nine five" of "eight five", a large number of mould enterprises have been popularized by computer graphics, and the utilization of nc processing has been increasing, and a considerable number of cad/cam systems have been introduced. American parametric technology company's pro/engineers. U.S. CV company's cads5, British delcam company doct5, Japan HZS crade and e, Israel company's cimatrona, also introduced autocad-catia software and French marta-daravision company for automotive and cover parts of the mould of the euclid-is and other specialized software. The domestic auto covering mould production enterprise is widely used in cad/cam technology. The design of the dl diagram and the design of the mould structure diagram have been implemented in two dimensions, and most enterprises have been transitioned to three dimensions, and the total drawing is gradually replaced by the production of parts. And the parameterized design of the mould is also moving to the field of technical development of a few mould factory. service
In addition to the introduction of the software, the Chinese science and technology university, jilin university and hunan university have developed the software of the high level of independent intellectual property, which has been successfully applied in the production practice, which has produced good benefits. service
The rapid manufacturing of the mold is low, the production precision is low, the sample is difficult to make difficult and so on, the 3d cad model is used as the fast die manufacturing of the molding, and the precision of the manufacturing parts, the development of the new car type in the car industry, the automatic body fast test system provides the guarantee of the cover, it is the sign that the RPM application to the car body large cover test mould has been successful. service
In recent years, there have been new rapid forming methods, such as the non-modular multipoint forming and laser impact and electromagnetic forming of the production. They all show the advantages of reducing costs and improving efficiency.
Mould design and manufacturing ability condition
Under the correct guidance of the national industrial policy, after decades of hard work, the design and manufacturing capacity of stamping die in China has reached a high level, including many modern design and manufacturing technologies, including information engineering and virtual technology, which have been applied in many mould enterprises.
However, China's stamping mould design manufacturing ability and market needs are still larger than the international advanced level. These are mainly expressed in the design of high-end cars and large and medium-sized car covers, and high precision stamping, there is a large gap in design and processing technology and ability. The car covers the mould, has the design and the manufacturing difficulty, the quality and the precision requirement high characteristic, can represent the level of the mold. Although the design manufacturing method and means have basically reached the international level, the mould structure function is also close to the international level, in the car mould localization process in the first step, but in the manufacturing quality, precision, manufacturing cycle and so on, there is a certain gap between the foreign and foreign countries. service
It is the precision mould variety of China's key development. It is representative of the automatic valve disc multi-function mould, which is integrated with the electromechanical integration of the core, which has reached the international level. service
However, in general, there is still a certain difference between manufacturing accuracy, service life, die structure and function. service
The manufacturing technology of car covering parts mould is constantly improving and improving, and the use of high precision and high efficiency processing equipment is becoming more and more extensive. High - performance five-axis high speed milling machines and three - axis high speed milling machines are more and more applications. The application of ncu DNC technology is more and more mature, which can be processed and superrefined. All of these improve the precision of die type surface, improve the quality of the mould, and shorten the manufacturing cycle of the mould. service
Mould surface reinforcement is also widely used. The process of mature, non-polluting, and inexpensive ion nitmatrosis is becoming more and more recognized, and the application of carbide coating processing (td) and many plating (coating) layer technology on stamping die is increasing. The technology of vacuum processing, solid casting technology and edge fabrication technology are mature. Laser cutting and laser welding techniques have also been applied. service
Degree of specialization and distribution
In China, the industry is less specialized in the mould industry, and the proportion of the mould is too high. The foreign mould self-fertilization case is generally 300%, and the domestic proportion of stamping die in China is 600%. This has many adverse effects on specialization. Now, the technical requirement is high, the large mould, the degree of specialization is high, such as the cover parts die, the multi-station stage and the finishing die. And general mode of specialization is lower. Because of the high ratio of self-matching, the distribution of stamping die production ability is basically the distribution of the production capacity of stamping parts. However, the distribution of professional production enterprises is not subject to the distribution of the stamping parts, but often depends on the decision of the main investors. In sichuan, for example, there is a strong ability to cover the mould of the car, and jiangsu has the ability of precision punching, and the die users are mostly not local. service
The development focus and prospect of stamping die
The selection of development priorities should be determined according to market demand, development trend and current situation. It can be described in terms of product focus, technical focus and other key points. service
1, stamping die product development focus.
There are seven small classes in the stamping die, and some kinds of categories that are addressed by their service objects. It is urgently needed to develop a car cover mold, multi-function, multi-station stage and precision. These molds are now in conflict and promising. service
The main point of the auto cover mould is the high and medium premium car large and medium covered parts, especially the outer covering parts. High strength board and unequal thickness plate stamping die and large multi-station stage and continuous mode will be developed in the future. The multi-function and multi-station stage is focused on high precision, high efficiency and large, high-to-life. The focus of the show is that the thick plate is large in precision, and it does not break the precision. service
2. Focus on the development of stamping die technology.
The future development trend of mould technology is the development of the informationization, the high speed production and the high precision. Therefore, from the design technology, the development focus is to vigorously promote the application of cad/cae/cam technology, and to continuously improve the efficiency, especially the computer simulation analysis technology of the plate forming process. The technique of mould cade-cam technology should be developed, integrated, intelligent and networked, and the degree of specialization of the CAM system of the high mould. service
In order to improve the application level of caee-cam technology, it is very important to establish complete mould database and develop expert system and improve the practicality of software. From processing technology, development focuses on high speed processing and high precision processing. High speed processing is mainly the development of high-speed milling, high-speed research and casting and high-speed processing and rapid molding technology. High precision machining is mainly the precision processing of the precision 1m and surface roughness of the mould parts. To improve the standardization of molds, the production supply of die standard parts is one of the key points of stamping die technology. service
In order to improve the life span of stamping die, the various kinds of reinforced ultra-hard processing are also the main points of development. service
In the case of digital manufacturing, system integration, reverse engineering, rapid prototype/mould manufacturing and computer auxiliary application technology, the development and engineering service of mould is developed, and the quality of enterprise level and mould is greatly improved, which is the key to the development of stamping die technology. service
Other development priorities and prospects.
Other development points and prospects are very rich, and there are only three aspects of management, specialization and standardization and industry adjustment. service
Enterprise management is a system project, it is a learning, it is science and technology. In a sense, our management is far more backward than technology than industrial developed countries. Therefore, the management of the mould enterprise is very important, and the management of the mould enterprise has many forms, each has its adaptive object, but the construction of informationization, the gradual realization of informationization management has become the development direction, and the industry also has the consensus. service
Due to the historical and institutional reasons, the professional and standardized standards of mould in our country have been low, and the specialization of stamping die is lower than plastic die and die casting. This is in a way that interferes with the development of stamping die, according to the professional situation of mould in domestic and foreign, specialization can have multi-layer meaning: 1. 2) according to the type of mould, specialized in a certain type of mould (such as stamping mould) production; 3) in a type of mould, according to its service object or mould process and size, select some of the molds in this type of mold (such as car cover mould, multi-station grade into die, precision and so on) to specialize in production; 4) the production of certain parts of the mold (such as die frame, punch, elastic element, etc.) supply mould production enterprises; 5) professional collaboration in the process. For example, the company, which specializes in the design of mould design, specialized in the processing of cavity processing or electrical processing cooperation, specialized in the enterprise and professional business of the processing of the measurement or heat treatment, and so on, this multi-level specialization contributes to the development of the mould industry. But the path of specialization is still far away, and the process must be accelerated to accommodate the situation. So this is also the focus of development.
Industry adjustment is a very heavy task, especially in the mould industry. The adjustment task facing the die industry is mainly:
(1) the adjustment of the structure of the mould enterprise. To make the die factory (workshop) independent, becoming an independent legal person that is facing the society and conceit, is the direction of adjustment. The mould enterprise is developed in the direction of small and small and small and small and small and small, small and small, and the joint of enterprises in the mature situation, as well as the combination of development production, learning, research and science, industry and trade, is also the direction of adjustment. The scale effect also attracts attention. service
Adjustment of the structure of the mould product. With the development of automobile industry, electronic information industry and home appliance industry, stamping mould market structure is changing greatly. In this case, the construction of stamping mould must be adjusted accordingly. For example, the precision of the car parts, the high precision of the lead frame, the multi-station type of the plug-in, the various kinds of motor, the type and the production of the machine, the product type and the production of the product will have a lot of development, and the enterprises must adjust the structure of the product according to the demand of the market. In general, the proportion of large, sophisticated, complex and long life molds should be improved. service
(3) the adjustment of the mould technical structure. The 21st century has entered the information age, the information age has developed rapidly, the mould industry and the enterprise need to develop must grasp the pulse of The Times, self-consciously adjust the technical structure of oneself. Traditional mould design manufacturing technology must be transformed with advanced and high technology, the technology content of the mould will be gradually improved, and the technology of modern industrial enterprise management will also gradually replace the management mode of the side. The mould industry and the mould enterprise, only the adjustment of the technical structure continuously, can in the rapidly changing market economy neutral in the unfailing land. service
(4) the adjustment of the import and export structure of the mould. In 2005, China's stamping mould imported $726m, exporting $97 billion, and imports and exports to the net import of $529 million, compared with 3.7:1for import and export. China's stamping die exports only account for 5%of production. The structure is clearly unreasonable. In the developed world of mould industry, there are about 30 percent export of die output, and the export mould is much more than the import mould. Although we cannot achieve the import and export structure of the developed world in the short term, we will try to expand our exports and improve the structure gradually. After a few years of hard work, we should make the basic balance of import and export as possible as possible, and should be the goal of our adjustment. service
In the development of informationization, the stamping mould in China must improve as soon as economic globalization tends to accelerate. Through reform and development, various effective measures, in the joint efforts of all workers in stamping die industry, the stamping mould in China will also continuously improve the level, gradually reduce the gap with the world advanced level. Under the guidance of the scientific outlook on development, we will constantly improve the ability of self-development, emphasize innovation, reform and open up, and adopt a new type of industrial road, and gradually change the growth model of speed to the quality and horizontal model, and the level of stamping die in China will inevitably be more than one flo
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