CN103240339A - Variable-blank-holding-force beam type drawing die - Google Patents
Variable-blank-holding-force beam type drawing die Download PDFInfo
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- 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
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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
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.
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 |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101812416A CN103240339A (en) | 2013-05-16 | 2013-05-16 | Variable-blank-holding-force beam type drawing die |
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| CN103240339A true CN103240339A (en) | 2013-08-14 |
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| CN2013101812416A Pending CN103240339A (en) | 2013-05-16 | 2013-05-16 | Variable-blank-holding-force beam type drawing die |
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Cited By (7)
| 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 |
| CN109692915A (en) * | 2018-12-26 | 2019-04-30 | 河北金环模具有限公司 | The effectively drawing die and forming method of control beam class product drawing rebound distortion |
| CN111421060A (en) * | 2020-03-16 | 2020-07-17 | 李学海 | Punching compound die and punching machine |
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| US5168738A (en) * | 1990-10-05 | 1992-12-08 | Maschinenfabrik J. Dieffenbacher Gmbh & Co. | Control system for a hydroelastic deep-drawing device |
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| 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 |
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2013
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| 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 |
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Cited By (10)
| 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 |
| CN108195670B (en) * | 2017-11-22 | 2021-06-04 | 安徽家骎建设工程有限公司 | Building rope tensile strength testing arrangement |
| CN109692915A (en) * | 2018-12-26 | 2019-04-30 | 河北金环模具有限公司 | The effectively drawing die and forming method of control beam class product drawing rebound distortion |
| CN109692915B (en) * | 2018-12-26 | 2024-01-19 | 河北金环模具有限公司 | Drawing die capable of effectively controlling drawing rebound distortion of beam parts and forming method |
| CN111421060A (en) * | 2020-03-16 | 2020-07-17 | 李学海 | Punching compound die and punching machine |
| CN111421060B (en) * | 2020-03-16 | 2022-02-15 | 重庆庆铃模具有限公司 | Punching compound die and punching machine |
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Application publication date: 20130814 |