CN102485371B - Stamping mould for forming work piece with local inner concave part - Google Patents

Stamping mould for forming work piece with local inner concave part Download PDF

Info

Publication number
CN102485371B
CN102485371B CN201010578801.8A CN201010578801A CN102485371B CN 102485371 B CN102485371 B CN 102485371B CN 201010578801 A CN201010578801 A CN 201010578801A CN 102485371 B CN102485371 B CN 102485371B
Authority
CN
China
Prior art keywords
block
pressing
local
concave
stamping die
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201010578801.8A
Other languages
Chinese (zh)
Other versions
CN102485371A (en
Inventor
马小喆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beiqi Foton Motor Co Ltd
Original Assignee
Beiqi Foton Motor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beiqi Foton Motor Co Ltd filed Critical Beiqi Foton Motor Co Ltd
Priority to CN201010578801.8A priority Critical patent/CN102485371B/en
Publication of CN102485371A publication Critical patent/CN102485371A/en
Application granted granted Critical
Publication of CN102485371B publication Critical patent/CN102485371B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention provides a stamping mould for forming a work piece with a local inner concave part; the stamping mould comprises an upper mould (1) and a lower mould (2); a convex hull (12) which is used for forming the local inner concave part is formed on the upper mould (1); a through hole (3) is formed at a position which corresponds to the convex hull (12) on the lower mould (2); the stamping mould also comprises a pressing device (4); the pressing device (4) comprises a pressing block (41) and an elastic element (45); and one end of the elastic element (45) is arranged on the lower mould (2) and the other end of the elastic element (45) elastically supports the pressing block (41), so that the pressing block (41) passes through the through hole (3) and can move up and down. After the stamping mould is adopted to form the work piece with the local inner concave part, when a drawing step is carried out, the pressing at the local inner concave part can be ensured to be stable, a material on the corner of the local inner concave part deforms fully, and wrinkling is prevented.

Description

There is the stamping die of the workpiece of local inner concave for moulding
Technical field
The present invention relates to punching press field.
Background technology
Car door assembly is completed by coating technique, wrapping process, partial points Welding by inner plate of car door assembly and door skin, and the rigid demand of car door assembly is mainly met by inner plate of car door assembly, and door skin mainly meets the outward appearance demand of car door.For the appurtenances on car door are installed, as door handle, lower visor etc., should there is local inner concave in door skin digital-to-analogue part.The stamping die of drawing door skin generally comprises upper die and lower die, conventionally on patrix, also has in order to form the convex closure of local inner concave.When drawing and moulding, the first contact material of the convex closure of moulding local inner concave on die face, but door skin is with respect to inner plate of car door material thickness, poor rigidity, and closure pressing speed is very fast, material flows uncontrolledly herein under without binder state, produces and flows inhomogeneously, flows than the material flow difficulties at straight line place at the material of the corner of local inner concave, after matched moulds completes, still have little time distortion, therefore can produce material stacking in the corner of local inner concave.After spraying paint, can significantly see in the corner of local inner concave having fold, be difficult to meet vehicle body appearance requirement.
Under normal circumstances, when drawing, adjust or the supplementary adjustment of technique wrinkling improvement by pressure.Alleviate around wrinkling of local inner concave such as reducing pressure or slow down closure pressing speed, but this will affect production efficiency greatly.Sometimes can supplement to improve local inner concave wrinkling phenomenon around by technique.As shown in Figure 1 be typical passenger door outside plate schematic diagram, door handle installation place in figure 01 is above described local inner concave with lower visor installation place 03.Because lower visor installation place 03 is through hole, follow-up flanging process technique as a supplement in addition, can fill and lead up local inner concave, and after deburring, shaping can cover wrinkling region around, can't affect the outward appearance of door skin.
But be not that each local inner concave place has technique to supplement, as in the time that drawing forms the handle installation place 01 in Fig. 1, at this moment just do not have follow-up technique to supplement.In the time of the door skin shown in drawing and moulding Fig. 1, the material at 01 place, handle installation place flows as shown in Figure 3, as can be seen from the figure, material at four fillet places is more easily piled up than straight flange place material, form fold, the wrinkling area 02 producing in its four corners is left over to finally, affects the outward appearance of whole door skin.
Although sometimes in the time of drawing, adjust by pressure or technique supplement adjustment can improve the wrinkling around local inner concave, but in the time that mold diversion or production programming adjustment need be changed production equipment, also need, according to the equipment of having changed, adjusted drawing is supplemented to technique and carry out accommodation, waste time and energy, and wrinkling problem finally can not thoroughly solve, can only leave over Painting Shop and play putty by hand, increase cost, reduce production efficiency.
Summary of the invention
The object of the present invention is to provide a kind of stamping die for moulding with the workpiece of local inner concave, the pressing speed at local inner concave place can control drawing time, flows evenly material, thereby it is wrinkling to avoid local inner concave to produce around.
In order to achieve the above object, a kind of stamping die for moulding with the workpiece of local inner concave of the present invention, described stamping die comprises upper die and lower die, on described patrix, be formed with to form the convex closure of described local inner concave, wherein, at described counterdie) the upper position corresponding with described convex closure be formed with through hole, described stamping die also comprises material pressing device, described material pressing device comprises binder block and flexible member, one end of described flexible member is arranged on described counterdie, binder block described in other end resiliency supported, make described binder block through described through hole and can move up and down.
Preferably, the end face shape of described binder block is mated with the end surface shape of described convex closure.
Preferably, before described upper die and lower die closure, the end face of described binder block is not less than the end face of described through hole.
Conventionally, described counterdie has the lightening core communicating with described through hole, and described material pressing device is arranged in described lightening core.
Preferably, described stamping die also comprises guide rail, and this guide rail is formed on the wall of described lightening core, for guiding described binder block to move up and down.
Conventionally, described material pressing device also comprises guide plate and guide plate frame, and described guide plate chord position is fixedly connected with between described binder block and described flexible member and with described binder block, and described guide plate is fixedly mounted on the side of described guide plate frame, is slidably matched with described guide rail.
Preferably, described material pressing device also comprises at least one limited block, and described limited block is fixed on the upper surface of described guide plate frame.
Conventionally, described material pressing device also comprises base plate, and described flexible member is arranged on described counterdie by described base plate.
Conventionally, described material pressing device also comprises cushion block, and this cushion block is arranged on described base plate, and described flexible member is arranged on described cushion block.
Preferably, described material pressing device also comprises at least two back-up blocks, and these at least two back-up blocks are arranged on described base plate or cushion block and are positioned at described flexible member around.
Preferably, described flexible member is nitrogen spring.
Preferably, the part more than convex closure of described patrix is not established lightening core, in the bottom of described patrix and the position corresponding with described convex closure be provided with counterbore, and be installed with adjustment block in described counterbore, the end face of described adjustment block exceeds the end face of counterbore.
By adopting stamping die of the present invention, can ensure drawing time, stable at local inner concave place binder, material flows evenly, and deal with the dynamic equilibrium problems of punching production by adjusting adjustment block, simple adjustment can complete mould mates with the adaptability of lathe, thereby has avoided generation wrinkling around local inner concave.
Brief description of the drawings
Shown in Fig. 1 is car door schematic diagram;
Shown in Fig. 2 is the A-A cutaway view of Fig. 1;
Shown in Fig. 3 is local inner concave material flow schematic diagram around in Fig. 1;
Shown in Fig. 4 is a kind of embodiment of adjustment structure of the present invention while being arranged in the car door stamping die shown in moulding Fig. 1, schematic diagram when upper and lower mould separates;
Schematic diagram when stamping die shown in Fig. 5 described in Fig. 4 is closed;
Shown in Fig. 6 is the top view of the material pressing device that adopts in Fig. 4;
Shown in Fig. 7 is the front view of the material pressing device shown in Fig. 4;
When the another kind of embodiment of the adjustment structure of the present invention shown in Fig. 8 is arranged in the car door stamping die shown in moulding Fig. 1, schematic diagram when upper and lower mould is closed;
Material pressing device stereogram in Fig. 8 shown in Fig. 9;
Shown in Figure 10 is the decomposition view of Fig. 9;
Reference numeral
01 handle installation place
02 wrinkling district
03 time visor installation place
1 patrix
1a counterbore
2 counterdies
21 guide rails
22 lightening cores
3 through holes
4 material pressing devices
5 adjustment blocks
41 binder blocks
42 guide plate framves
42a limited block
43 guide plates
44 back-up blocks
45 flexible members
46 cushion blocks
47 base plates
Detailed description of the invention
Below in conjunction with the drawings and the specific embodiments, adjusting device of the present invention is described in detail.
As shown in Figure 4, the invention provides a kind of stamping die for moulding with the workpiece of local inner concave, described stamping die comprises patrix 1 and counterdie 2, on described patrix 1, be formed with to form the convex closure 12 of described local inner concave, wherein, position corresponding with described convex closure 12 on described counterdie 2 is formed with through hole 3, described stamping die also comprises material pressing device 4, described material pressing device 4 comprises binder block 41 and flexible member 45, one end of described flexible member 45 is arranged on described counterdie 2, binder block 41 described in other end resiliency supported, make described binder block 41 through described through hole 3 and can move up and down.
When matched moulds, first the convex closure 12 on patrix 1 contacts plate to be formed.Because the binder block 41 of material pressing device 4 is through the through hole 3 on counterdie 2, after matched moulds proceeds to a certain degree, convex closure 12 can contact with binder block 41 by plate, because binder block 41 belows are flexible member 45, under the elastic force effect of flexible member 45, binder block 41 and convex closure 12 are jointly by sheet material clamping.After sheet material clamping, sheet metal deformation between binder block 41 and convex closure 12 is controlled, no longer in free state, plate flows than slow without binder state, and the material attenuate quantitative change at this place is little, if form the local inner concave of size constancy, the excess stock that is deposited in so local inner concave corner must be out of shape fully, just eliminate like this fold of material in these regions.
Because binder block 41 can move up and down under the promotion of flexible member 45, this has just ensured the continuous contact between plate, convex closure 12 and binder block 41 threes in drawing process, that is, plate flows in continuing controlled state, is out of shape also more even.
Certainly, the shape top of through hole 3 is consistent with the local inner concave shape on workpiece to be formed herein, and in order to ensure that binder block 41 can successfully move up and down, the bottom of through hole 3 should be straight wall through hole.After matched moulds completes, the upper surface of binder block 41 is concordant with the straight hole part upper surface of through hole 3.
Preferably, the end face shape of described binder block 41 should be mated with the end surface shape of described convex closure 12, as shown in Figure 6, is conducive to so tighter clamping plate and molds the accurate local inner concave shape of shape.
Generally, before described patrix 1 and counterdie 2 closures, the end face of described binder block 41 is not less than the end face of described through hole 3.Such advantage is: if the end face of binder block 41 is lower than the end face of described through hole 3, plate is placed on counterdie 2 with free state, and plate self has certain weight, make plate under Action of Gravity Field in through hole 3 place's indents, thereby form microdefect along through hole 3 peripheries, unfavorable to moulding.
If the end face of binder block 41 is not less than the end face of through hole 3, just play the effect of a support to being placed on plate on counterdie 2, eliminated plate along through hole 3 around surround and watch defect, improved the original state of plate, favourable to moulding.
In order to alleviate the overall weight of mould, on the upper and lower mould of mould, be always provided with lightening core, on counterdie 2, can there is in the present invention the lightening core 22 communicating with described through hole 3, pressure apparatus 4 is arranged in described lightening core 22, increase the installing space of material pressing device 4, thereby the installation process of material pressing device 4 is more prone to.
Preferably, described stamping die can also comprise guide rail 21, and this guide rail 21 is formed on the wall of described lightening core 22, for guiding described binder block 41 to move up and down, makes material pressing device 4 more stable.For example, guide rail 21 can be cast on the wall of lightening core 22 in the time of casting counterdie 2.
Can directly on binder block 41, form the guide plate matching with guide rail 21.
Easily there are wearing and tearing in the part being slidably matched with guide rail 21, in order to change conveniently, preferably, material pressing device 4 can also comprise guide plate 43 and guide plate frame 42, as shown in Figure 9 and Figure 10.Described guide plate frame 42 is fixedly connected with between described binder block 41 and described flexible member 45 and with described binder block 41, and described guide plate 43 is fixedly mounted on the side of described guide plate frame 42, is slidably matched, as shown in Figure 8 with described guide rail 21.Processing during with the mating surface of guide rail 21, only need to be processed guide plate 43, when replacing, also need to change guide plate 43.
Upper surface and the mould of guide plate frame 42 produce damaged in collision mould when preventing that the jack-up of flexible member 45 is out of control, and preferably material pressing device 4 can also comprise at least one limited block 42a, and described limited block 42a is fixed on the upper surface of described guide plate frame.
The shape of 42a can be arbitrary form, as long as have certain thickness, flexible member 45 jack-up, in the situation that out of control, limited block 42a contacts with the upper surface of lightening core 22, has prevented moving up further of material pressing device.
For easy for installation, preferably, described material pressing device 4 can also comprise base plate 47, and described flexible member 45 is arranged on described counterdie 2 by described base plate 47.
Most of flexible member is all standard component, there is relatively-stationary housing height, housing height for fear of selected flexible member 45 is too low, be not suitable for installing, preferably, described material pressing device 4 can also comprise cushion block 46, this cushion block 46 is arranged on base plate 47, described flexible member 45 is arranged on described cushion block 46, once the model of flexible member 45 selected after, the height of capable of regulating cushion block 46 carrys out elastic elements 45.
Binder block 41 is fixed together with guide plate frame 42, the two is supported by flexible member 45, in order to facilitate binder block 41, the assembling of guide plate frame 42 and flexible member 45, preferably, material pressing device 4 can also comprise at least two back-up blocks 44, can be around flexible member 45 after elastic elements 45 installation back-up block 44, while carrying out next step installation, can be by the binder block being fixed together 41, guide plate frame 42 and guide plate 43 are supported on back-up block 44 tops, so just avoided assembling when material pressing device 4 binder block 41 and guide plate frame 42 occur toppling over, the phenomenon such as unstable.
Introduce the assembling process of the material pressing device 4 shown in Fig. 9 below.
In the time of the described material pressing device 4 of assembling, first cushion block 46 is arranged on backing plate 47, for example, can cushion block 46 be connected with backing plate 47 by bolt, then flexible member 45 is fixed on cushion block 46, at least two back-up blocks 44 are installed subsequently around flexible member 45.After installing, back-up block 44 just the guide plate frame 43 linking together with binder block 41 can be supported on back-up block 44.Certainly, guide plate 43 can be installed before guide plate frame 42 is installed, and also can after guide plate frame 42 is installed, install.
The complete material pressing device 4 of assembling is put into the lightening core 22 of counterdie 2, and guide plate 43 and guide rail 21 are slidably matched, guiding binder block 41 is through the through hole 3 on counterdie 2.Then material pressing device 4 and counterdie are connected as a single entity.
Preferably, described flexible member 45 is nitrogen spring.The advantage of nitrogen spring has a lot, such as, the elastic force of nitrogen spring can regulate, and maximum can reach several tons.The own vol of nitrogen spring is less and service life is longer, is well suited for being used in mould.
Introduce the course of work of a kind of embodiment of the stamping die of the present invention shown in Fig. 8 below.
Before matched moulds, the binder block 41 of material pressing device 4 is supporting plate, and plate holder is flat.When matched moulds, patrix 1 moves towards counterdie 2, in the time that the convex closure 12 on patrix 1 touches plate, can be subject to the elastic force of the binder block 41 of plate below material pressing device 4.The end face shape of binder block 41 and the end surface shape of convex closure 12 match, and like this, material herein is closely clamped.In the process that continues to move towards counterdie 2 at patrix 1, binder block 41 is continuous decrease under the guiding function of guide rail 21, the material deformation being held is smaller, in order to form complete local inner concave, the material that is deposited in local inner concave corner starts abundant distortion, thereby after whole drawing process finishes, has eliminated the wrinkling district of local inner concave corner.
In the time of car door punching production, there is certain surface jitter degree as bottom surface in the patrix of mould, so also likely can cause local inner concave place pressure transient, can cause equally local inner concave to produce around wrinkling, so, preferably, as shown in Fig. 3, Fig. 4 and Fig. 7, on patrix 1, more than 12 part of convex closure can not established lightening core, in the bottom of described patrix 1 and the position corresponding with described convex closure 12 be provided with counterbore 1a, in described counterbore 1a, fixedly mount adjustment block 5, the end face of described adjustment block 5 exceeds the end face of counterbore 1a.
Adjustment block adjustment block increases the flatness that adjustment block 5 can reduce patrix 1 bottom above convex closure 12 beats, thereby makes the pressure at convex closure 12 places more stable, is conducive to alleviate wrinkling.
Same set of mould uses possibly on different lathes, and different platen surface accuracies and stamping-out speed all there are differences, therefore in patrix 1 bottom, the advantage of the place increase adjustment block 5 corresponding with convex closure 12 is also, in the time that replacing lathe is produced, only need the thickness that changes adjustment block 5 just can reach adaptability cooperation fast between stamping die and lathe.
The end face of adjustment block 5 generally will exceed the end face of counterbore 1a, and according to the situation of beating of patrix 1 base plane degree, the end face of adjustment block 5 is generally than the high 0.1~0.3mm of the end face of counterbore 1a.
Certainly, adjustment block 5 can also be set as to thickness constant, can in counterbore 1a, pad be set, so just can adjust by the mode of increase and decrease pad the height of adjustment block 5, thereby adjust the briquetting pressure at local inner concave place, more easily realize adaptability cooperation fast between mould and lathe.
By adopting stamping die of the present invention, can ensure drawing time, local inner concave place binder is stable, make local inner concave corner material deformation abundant, and deal with the dynamic equilibrium problems of punching production by adjusting adjustment block, simple adjustment can complete mould mates with the adaptability of lathe, thereby has avoided wrinkling generation.
Finally it should be noted that: above embodiment and accompanying drawing are only in order to technical scheme of the present invention to be described but not be limited, although the present invention is had been described in detail with reference to preferred embodiments, those of ordinary skill in the art is to be understood that: it still can be modified or be equal to replacement technical scheme of the present invention, and these amendments or be equal to replacement and also can not make amended technical scheme depart from the spirit and scope of technical solution of the present invention.

Claims (10)

1. one kind has the stamping die of the workpiece of local inner concave for moulding, described stamping die comprises patrix (1) and counterdie (2), on described patrix (1), be formed with to form the convex closure (12) of described local inner concave, it is characterized in that, be formed with through hole (3) in the upper position corresponding with described convex closure (12) of described counterdie (2), described stamping die also comprises material pressing device (4), described material pressing device (4) comprises binder block (41) and flexible member (45), one end of described flexible member (45) is arranged on described counterdie (2), binder block described in other end resiliency supported (41), make described binder block (41) through described through hole (3) and can move up and down, described counterdie (2) has the lightening core (22) communicating with described through hole (3), and described material pressing device (4) is arranged in described lightening core (22), described stamping die also comprises guide rail (21), and this guide rail (21) is formed on the wall of described lightening core (22), for guiding described binder block (41) to move up and down, described material pressing device (4) also comprises guide plate (43) and guide plate frame (42), described guide plate frame (42) is positioned between described binder block (41) and described flexible member (45) and with described binder block (41) and is fixedly connected with, described guide plate (43) is fixedly mounted on the side of described guide plate frame (42), be slidably matched with described guide rail (21), described material pressing device (4) also comprises at least two back-up blocks (44), these at least two back-up blocks (44) are positioned at the surrounding of described flexible member (45) to be supported and fixed on described guide plate frame (42) and described guide plate (43) together.
2. stamping die according to claim 1, is characterized in that, the end face shape of described binder block (41) is mated with the end surface shape of described convex closure (12).
3. stamping die according to claim 1, is characterized in that, before described patrix (1) and counterdie (2) closure, the end face of described binder block (41) is not less than the end face of described through hole (3).
4. stamping die according to claim 1, is characterized in that, described material pressing device (4) also comprises at least one limited block (42a), and described limited block (42a) is fixed on the upper surface of described guide plate frame.
5. stamping die according to claim 4, is characterized in that, described material pressing device (4) also comprises base plate (47), and described flexible member (45) is arranged on described counterdie (2) by described base plate (47).
6. stamping die according to claim 5, is characterized in that, described material pressing device (4) also comprises cushion block (46), and it is upper that this cushion block (46) is arranged on described base plate (47), and described flexible member (45) is arranged on described cushion block (46).
7. stamping die according to claim 6, is characterized in that, described at least two back-up blocks (44) are arranged on described base plate (47) or cushion block (46).
8. according to the stamping die described in any one in claim 1-7, it is characterized in that, described flexible member (45) is nitrogen spring.
9. stamping die according to claim 8, it is characterized in that, part more than the convex closure (12) of described patrix (1) is not established lightening core, in the bottom of described patrix (1) and the position corresponding with described convex closure (12) be provided with counterbore (1a), and in described counterbore (1a), be installed with adjustment block (5), the end face of described adjustment block (5) exceeds the end face of counterbore (1a).
10. stamping die according to claim 9, is characterized in that, the upper surface of described adjustment block (5) is than the high 0.1~0.3mm in upper surface of counterbore (1a).
CN201010578801.8A 2010-12-03 2010-12-03 Stamping mould for forming work piece with local inner concave part Active CN102485371B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201010578801.8A CN102485371B (en) 2010-12-03 2010-12-03 Stamping mould for forming work piece with local inner concave part

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201010578801.8A CN102485371B (en) 2010-12-03 2010-12-03 Stamping mould for forming work piece with local inner concave part

Publications (2)

Publication Number Publication Date
CN102485371A CN102485371A (en) 2012-06-06
CN102485371B true CN102485371B (en) 2014-09-17

Family

ID=46150964

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201010578801.8A Active CN102485371B (en) 2010-12-03 2010-12-03 Stamping mould for forming work piece with local inner concave part

Country Status (1)

Country Link
CN (1) CN102485371B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108817230B (en) * 2018-07-19 2019-12-03 安徽江淮汽车集团股份有限公司 A kind of mould structure

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101104184A (en) * 2007-08-16 2008-01-16 浙江科技学院 Drawing die based on variable blank holderforce control
CN201091897Y (en) * 2007-07-10 2008-07-30 亿和精密金属制品(深圳)有限公司 One-shot forming device for deep-drawing structure
CN201455116U (en) * 2009-06-30 2010-05-12 重庆电子工程职业学院 Deep-drawing shaping die
CN201516476U (en) * 2009-10-19 2010-06-30 天津市津兆机电开发有限公司 Apparatus for eliminating stretch formability stamping piece edge curling

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1076322A (en) * 1996-09-04 1998-03-24 Mitsubishi Heavy Ind Ltd Die for pressing work
KR20050034500A (en) * 2003-10-09 2005-04-14 주식회사 동양슬라이드 Plastic working apparatus for bending and forming
US7100417B2 (en) * 2003-11-13 2006-09-05 Kubota Iron Works Co., Ltd. Lower die assembly in pressing machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201091897Y (en) * 2007-07-10 2008-07-30 亿和精密金属制品(深圳)有限公司 One-shot forming device for deep-drawing structure
CN101104184A (en) * 2007-08-16 2008-01-16 浙江科技学院 Drawing die based on variable blank holderforce control
CN201455116U (en) * 2009-06-30 2010-05-12 重庆电子工程职业学院 Deep-drawing shaping die
CN201516476U (en) * 2009-10-19 2010-06-30 天津市津兆机电开发有限公司 Apparatus for eliminating stretch formability stamping piece edge curling

Also Published As

Publication number Publication date
CN102485371A (en) 2012-06-06

Similar Documents

Publication Publication Date Title
CN202006242U (en) Flanging molding die
CN101428323B (en) Stainless steel car body roof plate punching process
CN201455116U (en) Deep-drawing shaping die
CN201519719U (en) Stamping forming device capable of manufacturing frame parts of passenger cars of various types
CN201855876U (en) Die structure for compensating bending springback angle
CN203426270U (en) Mold for forming n-shaped automobile beam
CN102485371B (en) Stamping mould for forming work piece with local inner concave part
CN208787346U (en) A kind of automotive muffler blanking die mould composite die
CN103357754A (en) Forming mould and stamping technology for n-shaped automobile cross beam
CN201702267U (en) Composite drawing die used for punching plates
CN108127020B (en) A kind of first road punch-forming mold of magnesium alloy front case of vacuum booster
CN102615199A (en) Composite bending die and composite bending process for bracket
CN207952517U (en) A kind of anti-deformation mold that presses of rapid shaping
CN104209412A (en) Trial-manufacturing side reshaping die of vehicle body metal plate
CN203292339U (en) Pressure regulating cushion block in drawing die
CN202701156U (en) Upper cover forming die
CN204817731U (en) A quick -witted bimodulus car mould structure
CN205270518U (en) Motor stator dististyle finishing casement utensil
CN208483140U (en) Auto parts and components molding die backing-out punch
CN106925780B (en) Integrated mechanism of multilayer die carrier and press
CN203426281U (en) Multi-pin hardware stamping die
CN202377341U (en) Higher-lower die stamping system
CN206139732U (en) Shaping of car rear auxiliary frame reinforcing plate and turn -ups combination stamping die
CN212704107U (en) Flanging die demoulding mechanism
CN208408279U (en) A kind of punched workpiece forming mold

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
C14 Grant of patent or utility model