CN103240339A - Variable-blank-holding-force beam type drawing die - Google Patents

Variable-blank-holding-force beam type drawing die Download PDF

Info

Publication number
CN103240339A
CN103240339A CN2013101812416A CN201310181241A CN103240339A CN 103240339 A CN103240339 A CN 103240339A CN 2013101812416 A CN2013101812416 A CN 2013101812416A CN 201310181241 A CN201310181241 A CN 201310181241A CN 103240339 A CN103240339 A CN 103240339A
Authority
CN
China
Prior art keywords
blank holder
die
punch
class
sides
Prior art date
Application number
CN2013101812416A
Other languages
Chinese (zh)
Inventor
陈伊娜
乔晓勇
阳学
Original Assignee
上汽通用五菱汽车股份有限公司
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 上汽通用五菱汽车股份有限公司 filed Critical 上汽通用五菱汽车股份有限公司
Priority to CN2013101812416A priority Critical patent/CN103240339A/en
Publication of CN103240339A publication Critical patent/CN103240339A/en

Links

Abstract

The invention discloses a variable-blank-holding-force beam type drawing die. The variable-blank-holding-force beam type drawing die comprises a concave die base, a protruding die base and a blank holder assembly, wherein the concave die base and the protruding die base are arranged in an up-and-down mode, the blank holder assembly is located between the concave die base and the protruding die base, a protruding die is arranged on the protruding die base, at least two groups of nitrogen spring assemblies are arranged on the front side and the rear side of the protruding die on the protruding die base respectively, tops of nitrogen spring assemblies contact with the lower surface of the blank holder assembly, the protruding die contacts with the blank holder assembly, and the lower surface of the concave die base contacts with the upper surface of the blank holder assembly. By the aid of the variable-blank-holding-force beam type drawing die, arc-shaped springback of cross beam side walls is reduced, the problem of beam distortions is well solved, and the wrinkling phenomena of pressing face materials are reduced, so that a cross beam is shaped and deformed fully, internal stresses of parts are reduced, and the overall springback of parts is reduced.

Description

A kind of pressure variable edge force beam class drawing die
Technical field
The present invention relates to a kind of drawing die, particularly relate to a kind of pressure variable edge force beam class drawing die.
Background technology
In the mould design of body of a motor car high-strength steel sheet beam-like part, the power of air-cushion eject-rod that generally adopts drawing die realizes the power source of mould structure motion, pressure-plate-force all is the same with drawing pressure all the time, it is the downforce source that drawing die generally adopts the masterpiece of air-cushion eject-rod, pressure-pad-force is constant in forming process, the problem that the drawing die of this kind structure exists is, part needed plastic force in drawing process is to increase gradually, constant pressure-pad-force can not satisfy actual demand, the plastic deformation of part is insufficient, along with the increase of degree of drawing, material formed stress in the process that flows into increases, and therefore can form the resilience defective of arcuation at the sidewall of crossbeam, cause the out-of-flatness of sidewall, binder surface appearance simultaneously is wrinkling, and distortion appears in one-piece parts easily, and follow-up shaping also is difficult to address this problem fully.
Summary of the invention
The present invention finishes in order to solve deficiency of the prior art, the purpose of this invention is to provide a kind of arcuation resilience that reduces the crossbeam sidewall, control the problem of beam class distortion well, and reduced wrinkling on the pressure surface material, make crossbeam realize sufficient moulding distortion, reduce the internal stress of part, reduce the pressure variable edge force beam class drawing die of the whole resilience of part.
A kind of pressure variable edge force beam class drawing die of the present invention, comprise the die socket of upper and lower settings and convex mould base and the blank holder assembly that between described die socket and described convex mould base, arranges, the punch of projection is set on the described convex mould base, the both sides, front and back of punch arrange two groups of nitrogen spring assemblies respectively at least on described convex mould base, the top of described nitrogen spring assembly contacts with the lower surface of described blank holder assembly, described punch contacts with described blank holder assembly, and described die socket lower surface contacts with described blank holder upper surface.
A kind of pressure variable edge force beam class drawing die of the present invention can also be:
Be symmetrical arranged six groups of nitrogen spring assemblies respectively in both sides, described punch front and back on the described convex mould base.
Described six groups of nitrogen spring assemblies uniformly-spaced arrange on convex mould base.
Both sides, punch front and back arrange at least three limited blocks on earth on the described convex mould base, and described limited block on earth is in the left and right sides and front side or the rearward position setting triangular in shape of described every group of nitrogen spring assembly.
Two ends, the described die socket left and right sides are provided with the die spigot surface, and two ends, the described blank holder assembly left and right sides are respectively arranged with the outer guide plate of blank holder, and described die spigot surface contacts with the outer guide plate of described blank holder.
Described die socket lower surface is the die profile, and described blank holder assembly upper surface is the blank holder binder surface, and described die profile contacts with described blank holder binder surface.
Described punch is provided with the punch guide plate, described blank holder assembly arranges spigot surface in the blank holder at blank holder pressure surface material, the spigot surface position is corresponding with described punch guide plate position in the described blank holder, spigot surface sliding-contact in described punch guide plate and the described blank holder.
Both sides arrange three punch guide plates respectively before and after on the described punch, and the two ends, the left and right sides of described punch are respectively arranged with the punch guide plate, and correspondence arranges spigot surface in eight blank holders on the described blank holder pressure surface material.
Described blank holder assembly comprises two row's push rod legs, the push rod leg is set on the described convex mould base dodges the hole, and described push rod leg is dodged hole and the corresponding grafting in described push rod leg position.
A kind of pressure variable edge force beam class drawing die of the present invention, it comprises the die socket of upper and lower settings and convex mould base and the blank holder assembly that arranges between described die socket and described convex mould base, the punch of projection is set on the described convex mould base, the both sides, front and back of punch arrange two groups of nitrogen spring assemblies respectively at least on described convex mould base, the top of described nitrogen spring assembly contacts with the lower surface of described blank holder assembly, described punch contacts with described blank holder assembly, and described die socket lower surface contacts with described blank holder upper surface.Like this, mould moves at press, die is with after the binder surface of blank holder assembly contacts, provide pressure-pad-force at the push rod leg of lathe by the blank holder assembly this moment, begin to draw, nitrogen spring begins effect at the end when being drawn into 15-20mm, pressure-pad-force increases by 1 times, the multiple that pressure-pad-force increases can certainly be set according to demand, thereby satisfy high-strength beam-like part needed forming force in drawing process, the increase of pressure-pad-force, the inflow that has slowed down material, make sidewall obtain sufficient pull and stretch, thereby solved the arcuation resilience problem of sidewall effectively; According to the feature shaping needs of part, can realize the function of pressure variable edge force by the model of adjusting the zones of different nitrogen spring, can control the distortion problem of beam class preferably; Because material has obtained sufficient stretching in drawing process, make part carry out sufficient material sclerosis and plastic deformation simultaneously, reduced the internal stress of material significantly, thereby reduced the whole resilience behind the part drawing.Therefore, the advantage that has in terms of existing technologies is the arcuation resilience that reduces the crossbeam sidewall, control the problem of beam class distortion well, and reduced wrinkling on the pressure surface material, make crossbeam realize sufficient moulding distortion, reduce the internal stress of part, reduce the whole resilience of part, reduced the time that mould lapping-in or finishing or quality promote.
Description of drawings
A kind of pressure variable edge force beam of Fig. 1 the present invention class drawing die embodiment schematic diagram.
The figure number explanation
The specific embodiment
Fig. 1 below in conjunction with accompanying drawing is described in further detail a kind of pressure variable edge force beam class drawing die of the present invention.
A kind of pressure variable edge force beam class drawing die of the present invention, please refer to Fig. 1, comprise the die socket 4 of upper and lower settings and the blank holder assembly 3 of convex mould base 2 and setting between described die socket 4 and described convex mould base 2, the punch 1 of projection is set on the described convex mould base 2, the both sides, front and back of punch 1 arrange two groups of nitrogen spring assemblies 5 respectively at least on described convex mould base 2, the top of described nitrogen spring assembly 5 contacts with the lower surface of described blank holder assembly 3, described punch 1 contacts with described blank holder assembly 3, and described die socket 4 lower surfaces contact with described blank holder upper surface.Like this, mould moves at press, die is with after the binder surface 10 of blank holder assembly 3 contacts, provide pressure-pad-force at the push rod leg 13 of lathe by blank holder assembly 3 this moment, begin to draw, nitrogen spring begins effect at the end when being drawn into 15-20mm, pressure-pad-force increases by 1 times, the multiple that pressure-pad-force increases can certainly be set according to demand, thereby satisfy high-strength beam-like part needed forming force in drawing process, the increase of pressure-pad-force, the inflow that has slowed down material, make sidewall obtain sufficient pull and stretch, thereby solved the arcuation resilience problem of sidewall effectively; According to the feature shaping needs of part, can realize the function of pressure variable edge force by the model of adjusting the zones of different nitrogen spring, can control the distortion problem of beam class preferably; Because material has obtained sufficient stretching in drawing process, make part carry out sufficient material sclerosis and plastic deformation simultaneously, reduced the internal stress of material significantly, thereby reduced the whole resilience behind the part drawing.Therefore, the advantage that has in terms of existing technologies is the arcuation resilience that reduces the crossbeam sidewall, control the problem of beam class distortion well, and reduced wrinkling on the pressure surface material, make crossbeam realize sufficient moulding distortion, reduce the internal stress of part, reduce the whole resilience of part, reduced the time that mould lapping-in or finishing or quality promote.
A kind of pressure variable edge force beam class drawing die of the present invention please refer to Fig. 1, can also be to be symmetrical arranged six groups of nitrogen spring assemblies 5 respectively in both sides, described punch 1 front and back on the described convex mould base 2 in front on the basis of described technical scheme.Certainly more or less nitrogen spring assembly 5 can also be set according to actual needs, but also can be according to the actual needs that draw, and the nitrogen spring assembly 5 of different model is set, and then make pressure-pad-force everywhere increase different multiples, and then guarantee high-strength beam-like part zones of different needed forming force in drawing process, can control distortion problem and the resilience of beam class better, the increase of pressure-pad-force, slowed down the inflow of material, made sidewall obtain sufficient stretching.Further optimized technical scheme is that described six groups of nitrogen spring assemblies 5 uniformly-spaced arrange on convex mould base 2.Like this, guarantee stressed stability in the drawing process.Further optimized technical scheme is that both sides, punch 1 front and back arrange at least three limited blocks 6 on earth on the described convex mould base 2, and described limited block on earth 6 is in the left and right sides and front side or the rearward position setting triangular in shape of described every group of nitrogen spring assembly 5.Arrange like this and guarantee mould after being stretched to the end, the stability in nitrogen spring assembly 5 zones.
A kind of pressure variable edge force beam class drawing die of the present invention, please refer to Fig. 1, in front on the basis of described technical scheme, can also be that two ends, described die socket 4 left and right sides are provided with die spigot surface 7, two ends, described blank holder assembly 3 left and right sides are respectively arranged with the outer guide plate 8 of blank holder, and described die spigot surface 7 contacts with the outer guide plate 8 of described blank holder.In the process that die socket 4 moves downward, the outer guide plate 8 of die spigot surface 7 and blank holder contacts, and both offset, and die socket 4 moves downward more stable, can not rock back and forth, and then guarantee the stability of mould in drawing process.Embodiment's is technical in front, specifically can be that described die socket 4 lower surfaces are die profile 9, and described blank holder assembly 3 upper surfaces are blank holder binder surface 10, described die profile 9 and described blank holder binder surface 10 sliding-contacts.Contacting and drive binder surface 10 with binder surface 10 when die socket 4 moves downward like this moves downward.
A kind of pressure variable edge force beam class drawing die of the present invention, please refer to Fig. 1, in front on the basis of described technical scheme, can also be that described punch 1 is provided with punch guide plate 11, described blank holder assembly 3 arranges spigot surface 12 in the blank holder at blank holder pressure surface material, spigot surface 12 positions are corresponding with described punch guide plate 11 positions in the described blank holder, described punch guide plate 11 and interior spigot surface 12 sliding-contacts of described blank holder.Like this, blank holder assembly 3 moves downward under the effect of the downforce that lathe provides, thus in the blank holder spigot surface 12 when moving downward, contact with punch guide plate 11 and against thereon to lower slider, can guarantee the stability of drawing process like this.Further optimized technical scheme is that the both sides, front and back arrange three punch guide plates 11 respectively on the described punch 1, and the two ends, the left and right sides of described punch 1 are respectively arranged with punch guide plate 11, and correspondence arranges spigot surface 12 in eight blank holders on the described blank holder pressure surface material.Because front and back arrange six, about respectively arrange one, spigot surface 12 is in contact with one another and mutual sliding motion in the punch guide plate 11 of such eight groups of correspondences and the blank holder, guarantee the stability of the whole blank holder assembly 3 that presses down and 1 effect of the punch between the convex mould base 2, and then guaranteed the stability of integrally stretching process.
A kind of pressure variable edge force beam class drawing die of the present invention, please refer to Fig. 1, in front on the basis of described technical scheme, can also be that described blank holder assembly 3 comprises two row's push rod legs 13, on the described convex mould base 2 the push rod leg is set and dodges hole 14, described push rod leg is dodged hole 14 and the corresponding grafting in described push rod leg 13 positions.The effect of push rod leg 13 provides downforce, and when it moved to the bottom certain altitude, nitrogen spring assembly 5 began contact, and extra pressure-pad-force is provided.
Above-mentionedly only several specific embodiments among the present invention are illustrated; but can not be as protection scope of the present invention; every equivalence variation of having done according to the design spirit among the present invention or modification or equal proportion are amplified or are dwindled etc., all should think to fall into protection scope of the present invention.

Claims (9)

1. pressure variable edge force beam class drawing die, it is characterized in that: comprise the die socket of upper and lower settings and convex mould base and the blank holder assembly that between described die socket and described convex mould base, arranges, the punch of projection is set on the described convex mould base, the both sides, front and back of punch arrange two groups of nitrogen spring assemblies respectively at least on described convex mould base, the top of described nitrogen spring assembly contacts with the lower surface of described blank holder assembly, described punch contacts with described blank holder assembly, and described die socket lower surface contacts with described blank holder upper surface.
2. a kind of pressure variable edge force beam class drawing die according to claim 1 is characterized in that: be symmetrical arranged six groups of nitrogen spring assemblies respectively in both sides, described punch front and back on the described convex mould base.
3. a kind of pressure variable edge force beam class drawing die according to claim 2 is characterized in that: described six groups of nitrogen spring assemblies uniformly-spaced arrange on convex mould base.
4. a kind of pressure variable edge force beam class drawing die according to claim 3, it is characterized in that: both sides, punch front and back arrange at least three limited blocks on earth on the described convex mould base, and described limited block on earth is in the left and right sides and front side or the rearward position setting triangular in shape of described every group of nitrogen spring assembly.
5. according to claim 1 or 2 or 3 or 4 described a kind of pressure variable edge force beam class drawing dies, it is characterized in that: two ends, the described die socket left and right sides are provided with the die spigot surface, two ends, the described blank holder assembly left and right sides are respectively arranged with the outer guide plate of blank holder, and described die spigot surface contacts with the outer guide plate of described blank holder.
6. according to claim 1 or 2 or 3 or 4 described a kind of pressure variable edge force beam class drawing dies, it is characterized in that: described die socket lower surface is the die profile, described blank holder assembly upper surface is the blank holder binder surface, and described die profile contacts with described blank holder binder surface.
7. according to claim 1 or 2 or 3 or 4 described a kind of pressure variable edge force beam class drawing dies, it is characterized in that: described punch is provided with the punch guide plate, described blank holder assembly arranges spigot surface in the blank holder at blank holder pressure surface material, the spigot surface position is corresponding with described punch guide plate position in the described blank holder, spigot surface sliding-contact in described punch guide plate and the described blank holder.
8. a kind of pressure variable edge force beam class drawing die according to claim 7, it is characterized in that: both sides arrange three punch guide plates respectively before and after on the described punch, the two ends, the left and right sides of described punch are respectively arranged with the punch guide plate, and correspondence arranges spigot surface in eight blank holders on the described blank holder pressure surface material.
9. according to claim 1 or 2 or 3 or 4 described a kind of pressure variable edge force beam class drawing dies, it is characterized in that: described blank holder assembly comprises two row's push rod legs, the push rod leg is set on the described convex mould base dodges the hole, described push rod leg is dodged hole and the corresponding grafting in described push rod leg position.
CN2013101812416A 2013-05-16 2013-05-16 Variable-blank-holding-force beam type drawing die CN103240339A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013101812416A CN103240339A (en) 2013-05-16 2013-05-16 Variable-blank-holding-force beam type drawing die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013101812416A CN103240339A (en) 2013-05-16 2013-05-16 Variable-blank-holding-force beam type drawing die

Publications (1)

Publication Number Publication Date
CN103240339A true CN103240339A (en) 2013-08-14

Family

ID=48920409

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2013101812416A CN103240339A (en) 2013-05-16 2013-05-16 Variable-blank-holding-force beam type drawing die

Country Status (1)

Country Link
CN (1) CN103240339A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103785754A (en) * 2014-02-26 2014-05-14 安徽江淮汽车股份有限公司 Cold stamping drawing die
CN104722654A (en) * 2015-04-16 2015-06-24 安徽江淮汽车股份有限公司 Drawing die
CN104722653A (en) * 2015-04-13 2015-06-24 安徽江淮汽车股份有限公司 Stamping drawing mould
CN106862394A (en) * 2017-04-25 2017-06-20 安徽江淮汽车集团股份有限公司 A kind of drawing die
CN108195670A (en) * 2017-11-22 2018-06-22 长沙双合盛企业管理有限公司 A kind of building tubing sections strength testing device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02207927A (en) * 1989-02-06 1990-08-17 Honda Motor Co Ltd Drawing die
US5168738A (en) * 1990-10-05 1992-12-08 Maschinenfabrik J. Dieffenbacher Gmbh & Co. Control system for a hydroelastic deep-drawing device
JP2004017156A (en) * 2002-06-19 2004-01-22 R Kogyo:Kk Drawing and coining die in press work process for product using undulated aluminum material
CN201482869U (en) * 2009-06-30 2010-05-26 奇瑞汽车股份有限公司 Novel drawing mold structure
CN202316782U (en) * 2011-11-23 2012-07-11 重庆市华青汽车配件有限公司 Sedan trunk inner plate drawing die
CN202725806U (en) * 2012-06-29 2013-02-13 长城汽车股份有限公司 Blanking-drawing die for coiled material charging
CN203356352U (en) * 2013-05-16 2013-12-25 上汽通用五菱汽车股份有限公司 Blank holder force changing beam drawing die

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02207927A (en) * 1989-02-06 1990-08-17 Honda Motor Co Ltd Drawing die
US5168738A (en) * 1990-10-05 1992-12-08 Maschinenfabrik J. Dieffenbacher Gmbh & Co. Control system for a hydroelastic deep-drawing device
JP2004017156A (en) * 2002-06-19 2004-01-22 R Kogyo:Kk Drawing and coining die in press work process for product using undulated aluminum material
CN201482869U (en) * 2009-06-30 2010-05-26 奇瑞汽车股份有限公司 Novel drawing mold structure
CN202316782U (en) * 2011-11-23 2012-07-11 重庆市华青汽车配件有限公司 Sedan trunk inner plate drawing die
CN202725806U (en) * 2012-06-29 2013-02-13 长城汽车股份有限公司 Blanking-drawing die for coiled material charging
CN203356352U (en) * 2013-05-16 2013-12-25 上汽通用五菱汽车股份有限公司 Blank holder force changing beam drawing die

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103785754A (en) * 2014-02-26 2014-05-14 安徽江淮汽车股份有限公司 Cold stamping drawing die
CN104722653A (en) * 2015-04-13 2015-06-24 安徽江淮汽车股份有限公司 Stamping drawing mould
CN104722654A (en) * 2015-04-16 2015-06-24 安徽江淮汽车股份有限公司 Drawing die
CN106862394A (en) * 2017-04-25 2017-06-20 安徽江淮汽车集团股份有限公司 A kind of drawing die
CN108195670A (en) * 2017-11-22 2018-06-22 长沙双合盛企业管理有限公司 A kind of building tubing sections strength testing device

Similar Documents

Publication Publication Date Title
CN202278096U (en) Module-type flexible drawing die
CN102962309A (en) Forming method and device for thin-wall T-pipe
KR20130109583A (en) Bending press system
CN201760499U (en) Backward deep drawing die with outer edge subject to back pressure of forward pressure belt
CN103600006B (en) Automobile volume circle part forming methods
CN201889361U (en) Forward-drawing/reverse-drawing one-step deep-drawing die for large plastic deformation of thick plate
CN102974694B (en) A kind of diel of single action press
CN203679000U (en) Bidirectional bottle cap punching mold
CN104550378A (en) Bending mould and bending method for refrigerator invisible door
CN104028652B (en) For the Wedge mechanism of side flanging die
CN103878228A (en) Flexible multi-point forming device for plates
CN203955895U (en) Metal sheet slide block type apparatus for bending
CN203944678U (en) A kind of U-shaped groove Bending Processing structure of mylar film
CN101700548A (en) Punching die based on uneven resistance of deep-drawing rib
CN203831540U (en) Bidirectional pressing forming mould used for unidirectional press
CN202490885U (en) U-shaped bender mold
CN201279550Y (en) Back stretching die for producing sedan channel inner-plate
CN207271931U (en) A kind of automobile sealing plate mould
CN105689534A (en) Trimming and side punching mold
CN203184447U (en) Rotating stretching stamping die
CN105537360A (en) Forward-backward drawing and forming method for metal plate soft mould
CN204220751U (en) Automobile chassis diel
CN204294740U (en) A kind of Bending Mould
CN202963201U (en) Blank drawing die
CN204052632U (en) The shaped device of railway freight-car sleeper beam lower cover

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20130814

C12 Rejection of a patent application after its publication