CN107052162A - Punch stretching mould - Google Patents
Punch stretching mould Download PDFInfo
- Publication number
- CN107052162A CN107052162A CN201710514123.0A CN201710514123A CN107052162A CN 107052162 A CN107052162 A CN 107052162A CN 201710514123 A CN201710514123 A CN 201710514123A CN 107052162 A CN107052162 A CN 107052162A
- Authority
- CN
- China
- Prior art keywords
- material pressing
- pressing core
- die
- blank
- die cavity
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
- B21D22/22—Deep-drawing with devices for holding the edge of the blanks
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention discloses a kind of punch stretching mould, including：Upper bolster and the die plate insert for being located at upper bolster bottom；Die shoe and the blank holder and punch-pin being located on die shoe；The die cavity set along binder direction is offered in the upper bolster, material pressing core is slidably fitted with the die cavity, the bottom of the material pressing core is provided with the male-type face for being used for limiting blank flow velocity；Nitrogen spring is provided with the top of die cavity, when blank is unformed, the nitrogen spring, which is acted on, makes its male-type face protrude the die plate insert at the top of the material pressing core.The application that the present invention passes through drawing die in the present invention so that the effectively blank flowing of control plate intermediate region during drawing and moulding, so as to eliminate corrugated quality problems during blank drawing and moulding.Especially for the application of high-strength steel sheet drawing and moulding.
Description
Technical field
The present invention relates to mould applications, more particularly to a kind of punch stretching mould.
Background technology
With continuing to develop for auto industry, the application of high-strength steel, super-high strength steel on body of a motor car is more and more, and it is not
Body lightening is only realized, the effect of energy-saving and emission-reduction is reached, and also significantly increases the impact strength and security of vehicle
Energy.But, high-strength steel is increased relative to general steel plate punch forming difficulty, and it has easy to crack, corrugation in forming process, returned
Bullet etc. quality problems, so as to influence stamping parts quality and vehicle vehicle body precision.
Due to the characteristic of high-strength steel material, easily there is wrinkling, this hair in drawing and moulding in the high-strength steel part in part
It is bright that a kind of drawing die with material pressing core and side latch structure is mainly provided, it can effectively solve the corrugation in high-strength steel forming process
Problem.
Existing drawing die structure mainly includes upper bolster, blank holder and die shoe three parts, wherein, female mold part is upper
On die holder, convex portions are on die shoe.This kind of drawing mold forming relies primarily on punch-pin shaping, and main operational principle is as follows：Into
Before type, upper and lower mould is open mode, and then lathe push rod puts plate blank holder jack-up certain altitude (blank holder stroke)
In on blank holder, upper mould coordinates blank holding after being moved downwardly together with lathe with pressure plate loop.Then, upper mould is total to blank holder
With continuing to move downward, punch-pin, which is stretched into inside blank holder, starts shaping, until mould reaches closure state, drawing and moulding terminates.
When upper mould is compressed with blank holder during drawing and moulding, blank is locked in the male-type face relied primarily on blank holder
Tightly, so that material degree is flowed in border when realizing control shaping.Regulation stream can be reached by changing the shape and size in male-type face
The speed of material.When carrying out high-strength steel drawing and moulding using existing drawing mold structure, border stream situation can pass through blank holder
On the control of male-type face, but plate intermediate region stream is uncontrollable, and local many material are easily caused during shaping and cause corrugation existing
As stamping parts quality being had a strong impact on, so as to cause stamping parts unqualified, it is impossible to meet entrucking requirement.
The content of the invention
The present invention provides a kind of drawing die, when carrying out high-strength steel drawing and moulding to solve existing drawing die, plate
The intermediate region stream speed of part is uncontrollable, the problem of local many material are easily caused during shaping or are wrinkled.
The present invention provides a kind of punch stretching mould to achieve these goals, including：Upper bolster and it is located at upper bolster bottom
The die plate insert in portion；Die shoe and the blank holder and punch-pin being located on die shoe；Offered in the upper bolster along binder side
To the die cavity of setting, material pressing core is slidably fitted with the die cavity, the bottom of the material pressing core, which is provided with, to be used to limit blank stream
The male-type face of speed；Nitrogen spring is provided with the top of die cavity, when blank is unformed, the nitrogen spring acts on the binder
Its male-type face is set to protrude the die plate insert at the top of core.
Preferably, in addition to side pin, the side wall of the die cavity it is horizontal be provided with the positioning hole that is set through the die cavity,
Offered at the middle part of the material pressing core along the material pressing core direction of motion and extend transversely through the spacing hole that the material pressing core is set；The side
Pin is fixed on the upper bolster through its two ends after the positioning hole by fixing hole.
Preferably, the part that the material pressing core stretches out the die plate insert is the external part of material pressing core, when initial, the side
Pin engages with the upper end of the spacing hole；There is gap, the stretching between the bottom of the nitrogen spring and the material pressing core
The height at end is more than the gap.
Preferably, when initial, distance of the external part away from die plate insert bottom is 5mm, the bottom of the nitrogen spring
Gap between the top of binder 4 is 2mm.
Preferably, the glide direction in the inwall of the die cavity and the both sides of the material pressing core along the material pressing core is set respectively
Put slide plate.
Preferably, the male-type face along the forming direction projection perpendicular to blank in the bottom of the material pressing core.
Preferably, the top of the nitrogen spring is provided with fixed plate, and the nitrogen spring is fixed on described by fixed plate
The top of die cavity.
Preferably, the top of the material pressing core is just dead to being provided with multiple piers with preset thickness at the fixed plate
Block, when shaping is finished, the dead block of pier is contacted with fixed plate.
Effect of the invention is that：Pass through the application of drawing die in the present invention so that during drawing and moulding effectively
The blank flowing of plate intermediate region is controlled, so as to eliminate corrugated quality problems during blank drawing and moulding.Particularly pair
In the application of high-strength steel sheet drawing and moulding.
Brief description of the drawings
, below will be to institute in embodiment in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only one described in the present invention
A little embodiments, for those of ordinary skill in the art, can also obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the axonometric drawing of punch stretching mould in the embodiment of the present invention.
Fig. 2 is the sectional view of punch stretching mould in the embodiment of the present invention.
Fig. 3 is the structural representation of upper bolster.
Fig. 4 is the structural representation of material pressing core.
Fig. 5 is the structural representation of die shoe.
In figure of the present invention：1- upper bolster 11- die plate insert 12- fixed plate 13- nitrogen spring 14- die cavity 2- flanging
Enclose the material pressing core 41- male-types face dead block 43- sides of 42- piers of 21- blank holder insert 22- guide plate 3- die shoe 31- punch-pin 4
Sell 44- spacing holes
Embodiment
In order that those skilled in the art more fully understands technical scheme, below in conjunction with accompanying drawing to this hair
It is bright to be further detailed.
Referring to shown in Fig. 1 to Fig. 5, being a kind of punch stretching mould provided in an embodiment of the present invention, including upper bolster 1 and under
Die holder 3, the bottom of upper bolster 1 is provided with die plate insert, the die cavity 14 set along binder direction is offered in upper bolster 1, in type
Material pressing core 4 is slidably fitted with chamber 14, the bottom of material pressing core 4 is provided with the male-type face 41 of limited flow rate.It is provided with die shoe 3
Blank holder 2 and punch-pin 31.Material pressing core 4 not only plays binder effect in this programme, also acts as the effect of limitation intermediate region flow velocity.
Itself specifically, be provided with nitrogen spring 13 at the top of die cavity 14, when blank is unformed (blank holder insert and die plate insert not in contact with
Closure), the top that nitrogen spring 13 acts on material pressing core 4 makes its male-type face 41 protrude die plate insert 11, to cause in shaping
Before, material pressing core 4 is contacted prior to die plate insert 11 with blank, to be positioned to blank holding, during upper mould is moved downward, binder
Application active force of the core 4 to blank so that male-type face 41 acts on blank prior to die plate insert；In die plate insert 11 and punch-pin
31 match somebody with somebody synthesis type when, male-type face 41 effectively limits the flow velocity of middle blank.By the application of drawing die in the present invention,
So that the effectively blank flowing of control plate intermediate region during drawing and moulding, so that during eliminating blank drawing and moulding
Corrugated quality problems.Especially for the application of high-strength steel sheet drawing and moulding.
In a preferred embodiment, with reference to shown in Fig. 1 and Fig. 4, provided with the limitation working line of material pressing core 4 in die cavity 14
The side pin 43 of journey, it is specifically, in the horizontal positioning hole being provided with through die cavity setting of the side wall of die cavity 14, in material pressing core
Portion offers the spacing hole 44 for extending transversely through material pressing core setting along the material pressing core direction of motion；Sell through its two ends after positioning hole 44 side
It is fixed on by fixing hole on upper bolster.Side pin 43 plays a part of controlling the stroke of material pressing core 4, i.e. when initial (material pressing core not with
When blank is contacted), the upper-end contact of side pin 43 and spacing hole 44, now the effect end of nitrogen spring 13 act on material pressing core 4
Top surface, it is ensured that material pressing core 4 can extend downwardly from die plate insert 11.And in draw forming, as upper bolster 1 is descending, nitrogen spring
13 are continuingly acted on material pressing core 4, and now the bottom of material pressing core 4 is acted on blank, and top is stretched into relatively upward along die cavity 14
Inside die cavity, until mould closure, draw forming terminates.Wherein, nitrogen spring 13 is installed on die cavity 14 by fixed plate 12
Top；It is above-mentioned that the spacing of material pressing core 4 can also be realized by the way of the dead block 42 of pier certainly, i.e., set in the bottom of material pressing core 4
The dead block 42 of pier with preset thickness is equipped with, when shaping is finished, the dead block 42 of pier is contacted with upper bolster 1.Side pin 43 is not only played
Limit effect, also acts the fixation to material pressing core 4, therefore two ways can be combined and use, but function has difference.
In above-described embodiment, with reference to shown in Fig. 1 and Fig. 2, when initial, have between the bottom of nitrogen spring 13 and material pressing core 4
Have located at gap, now, material pressing core 4 is not affected by the downward pressure-plate-force of nitrogen spring 13, and the bottom of material pressing core 4 is stretching cavity plate
Insert 11, wherein, in this programme, the part that material pressing core 4 stretches out die plate insert 11 is the external part of material pressing core 4, now, is stretched
The height for going out end is more than above-mentioned gap.So that when initial, nitrogen spring 13 is not acted on, and material pressing core 4 is prior to die plate insert
11 are contacted with blank, with continuing to run with for upper bolster 1, and bottom of the material pressing core 4 just gradually with nitrogen spring 13 is contacted.Also
It is to say, the two has one section of free movement state for being material pressing core 4, i.e., material pressing core 4 is before binder, due to base before contact
The reaction force of material so that ability and nitrogen spring 13 after it can move up certain distance contacting forward position die cavity 14 with nitrogen spring 13
Contact, designs, first ensures that nitrogen spring 13 when not in use herein, and it can keep nature to stretch, it is to avoid damage, and improves device
Reliability；For in addition, the effect for the applicability for improving device is also acted as.More particularly, in this programme, when external part is initial
Distance of the external part away from die plate insert bottom is 5mm, and now, between the bottom and the top of material pressing core 4 of nitrogen spring 13 between
Gap is 2mm, that is, when having 2mm strokes therebetween for the motion of material pressing core 4, not by the elastic force of nitrogen spring 13, under this distance, really
Having protected material pressing core can contact prior to die plate insert with blank.
Certainly, in this programme, it can also divide in the glide direction of the inwall of die cavity 14 and the both sides of material pressing core 4 along material pressing core 4
Slide plate is not set, is contacted by slide plate and realizes being slidably matched for material pressing core and die cavity.For in addition, the projection of the present embodiment
Type face 41 is the forming direction projection perpendicular to blank in the bottom of material pressing core 4, it is ensured that during drawing and moulding, it can be effective
Limitation blank in the middle part of flow velocity.
Before press work, upper and lower mould is open mode, and lathe push rod is first by the jack-up certain altitude (blank holder of blank holder 2
Predetermined stroke), then place the blanks on blank holder 2, upper bolster 1 is moved downwardly together with material pressing core 4 with press.Due to binder
External part of the core 4 on the inside of upper bolster 1 and material pressing core 4 is less than the cavity plate type face about 5mm that die plate insert 11 is constituted, material pressing core 4
External part contacted prior to die plate insert with blank and by blank holding, now die plate insert 11 is not yet contacted with plate, nitrogen
Spring 13 still in complete elongation state and has 2mm gaps between the upper end of material pressing core 4.Plate border compress after, upper bolster 1 with
Blank holder 2 starts to move downward jointly, and punch-pin 31 is stretched into inside blank holder 2, is then molded with plate contact start.
Because the external part of material pressing core 4 is only below the cavity plate type face about 5mm of die plate insert 11, punch-pin 31 just starts after shaping
Material pressing core 4 can be contacted with punch-pin 31 and by the blank holding of part corresponding to material pressing core 4 quickly.Due to the corresponding region of material pressing core 4
Blank do not start to substantially shaping be just compacted, reduce the amount of flow of the blank of the part, and then avoid other parts
Expect during shaping more and cause corrugation problem.
Upper bolster 1 continues to move downward with blank holder 2, and punch-pin 31 is continued deeper into inside blank holder 2, and plate is gradually molded,
In the process, nitrogen spring 13 is constantly compressed.When mould reaches closure state, the dead block 42 of pier on material pressing core 4 with it is upper
Die holder 1 is contacted, and material pressing core pier is dead, and drawing and moulding terminates.By in die cavity between upper bolster 1 and material pressing core 4 in forming process
Slide plate carries out slide guide, upper bolster 1 and blank holder 2 move downward jointly during by the guide plate at blank holder corner and lower mould
The slide guide contact of seat is oriented to.
After the completion of drawing, upper and lower mould is initially separated：Upper bolster 1 is moved upwards, is separated with plate, now material pressing core 4 is still located
In binder state, nitrogen spring 13 gradually extends.After motion certain altitude (stroke of material pressing core 4) upwards of upper bolster 1, side pin 43
With the upper contact of spacing hole 44 on material pressing core 4, upper mould continues up and drives material pressing core 4 to move upwardly together, binder
Core 4 is separated with plate.It should be noted that blank holder insert 21 can be set on blank holder 2, guide plate can be set in lower mould side
22, it is that mould routinely terminates, and does not explain in detail its effect herein.
Some one exemplary embodiments of the present invention are only described by way of explanation above, undoubtedly, for ability
The those of ordinary skill in domain, without departing from the spirit and scope of the present invention, can be with a variety of modes to institute
The embodiment of description is modified.Therefore, above-mentioned accompanying drawing and description are inherently illustrative, should not be construed as to the present invention
The limitation of claims.
Claims (8)
1. a kind of punch stretching mould, including：Upper bolster and the die plate insert for being located at upper bolster bottom；Die shoe and it is located at lower mould
Blank holder and punch-pin on seat；Characterized in that,
The die cavity set along binder direction is offered in the upper bolster, material pressing core, institute are slidably fitted with the die cavity
The bottom for stating material pressing core is provided with the male-type face for being used for limiting blank flow velocity；Nitrogen spring is provided with the top of die cavity, blank is not
During shaping, the nitrogen spring, which is acted on, makes its male-type face protrude the die plate insert at the top of the material pressing core.
2. punch stretching mould as claimed in claim 1, it is characterised in that also sold including side, horizontal in the side wall of the die cavity
To be provided with through the die cavity set positioning hole, offer transverse direction along the material pressing core direction of motion at the middle part of the material pressing core
The spacing hole set through the material pressing core；The side pin is fixed on described through its two ends after the positioning hole by fixing hole
On upper bolster.
3. punch stretching mould as claimed in claim 1 or 2, it is characterised in that the material pressing core stretches out the die plate insert
Part be material pressing core external part, when initial, side pin engages with the upper end of the spacing hole；The bottom of the nitrogen spring
There is gap, the height of the external part is more than the gap between end and the material pressing core.
4. punch stretching mould as claimed in claim 3, it is characterised in that when initial, the external part is away from die plate insert bottom
The distance at end is 5mm, and the gap between the bottom and the top of binder 4 of the nitrogen spring is 2mm.
5. punch stretching mould as claimed in claim 4, it is characterised in that in the inwall and the material pressing core of the die cavity
Glide direction of the both sides along the material pressing core sets slide plate respectively.
6. punch stretching mould as claimed in claim 1, it is characterised in that shaping of the male-type face edge perpendicular to blank
Direction projection is in the bottom of the material pressing core.
7. punch stretching mould as claimed in claim 6, it is characterised in that the top of the nitrogen spring is provided with fixed plate,
The nitrogen spring is fixed on the top of the die cavity by fixed plate.
8. punch stretching mould as claimed in claim 7, it is characterised in that the top of the material pressing core is just to the fixed plate
Place is provided with multiple dead blocks of the pier with preset thickness, when shaping is finished, and the dead block of pier is contacted with fixed plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710514123.0A CN107052162B (en) | 2017-06-28 | 2017-06-28 | Punch stretching mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710514123.0A CN107052162B (en) | 2017-06-28 | 2017-06-28 | Punch stretching mould |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107052162A true CN107052162A (en) | 2017-08-18 |
| CN107052162B CN107052162B (en) | 2018-12-21 |
Family
ID=59613977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710514123.0A Expired - Fee Related CN107052162B (en) | 2017-06-28 | 2017-06-28 | Punch stretching mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107052162B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108817230A (en) * | 2018-07-19 | 2018-11-16 | 安徽江淮汽车集团股份有限公司 | A kind of mould structure |
| CN111167955A (en) * | 2020-02-29 | 2020-05-19 | 奥林汽车零部件（常熟）有限公司 | Forming die for inward-hooking curled edge part |
| CN112338063A (en) * | 2020-10-21 | 2021-02-09 | 株洲华信精密工业股份有限公司 | Stamping device is used in metal accessories production |
| WO2024017002A1 (en) * | 2022-07-22 | 2024-01-25 | 蔚来汽车科技(安徽)有限公司 | Drawing punching die |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101862797A (en) * | 2010-04-30 | 2010-10-20 | 天津志诚模具有限公司 | Unloading block stroke limit assembly for stamping die of narrow and long pieces and working method thereof |
| CN102554038A (en) * | 2011-12-29 | 2012-07-11 | 瑞鹄汽车模具有限公司 | Side-driving material pressing mechanism and stamping method thereof |
| CN204470432U (en) * | 2015-01-14 | 2015-07-15 | 瑞鹄汽车模具有限公司 | A kind of mould material pressing core position limiting structure |
| CN204603041U (en) * | 2015-04-08 | 2015-09-02 | 重庆新致汽车配件有限责任公司 | With the drawing die of patrix precompressed dnockout core |
| CN105013918A (en) * | 2015-07-02 | 2015-11-04 | 奇瑞汽车股份有限公司 | Complicated surface plate drawing mold and control method thereof |
| CN205085277U (en) * | 2015-10-30 | 2016-03-16 | 安徽江淮汽车股份有限公司 | Stamping die side round pin subassembly |
| CN205571188U (en) * | 2016-05-11 | 2016-09-14 | 安徽江淮汽车股份有限公司 | Implanted side round pin mechanism and mould |
| CN205833993U (en) * | 2016-07-14 | 2016-12-28 | 上海菲格瑞特汽车科技股份有限公司 | A kind of longeron drawing and moulding mould of upper binder |
-
2017
- 2017-06-28 CN CN201710514123.0A patent/CN107052162B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101862797A (en) * | 2010-04-30 | 2010-10-20 | 天津志诚模具有限公司 | Unloading block stroke limit assembly for stamping die of narrow and long pieces and working method thereof |
| CN102554038A (en) * | 2011-12-29 | 2012-07-11 | 瑞鹄汽车模具有限公司 | Side-driving material pressing mechanism and stamping method thereof |
| CN204470432U (en) * | 2015-01-14 | 2015-07-15 | 瑞鹄汽车模具有限公司 | A kind of mould material pressing core position limiting structure |
| CN204603041U (en) * | 2015-04-08 | 2015-09-02 | 重庆新致汽车配件有限责任公司 | With the drawing die of patrix precompressed dnockout core |
| CN105013918A (en) * | 2015-07-02 | 2015-11-04 | 奇瑞汽车股份有限公司 | Complicated surface plate drawing mold and control method thereof |
| CN205085277U (en) * | 2015-10-30 | 2016-03-16 | 安徽江淮汽车股份有限公司 | Stamping die side round pin subassembly |
| CN205571188U (en) * | 2016-05-11 | 2016-09-14 | 安徽江淮汽车股份有限公司 | Implanted side round pin mechanism and mould |
| CN205833993U (en) * | 2016-07-14 | 2016-12-28 | 上海菲格瑞特汽车科技股份有限公司 | A kind of longeron drawing and moulding mould of upper binder |
Non-Patent Citations (1)
| Title |
|---|
| 刘贵元: "氮气缸在纵梁类零件拉延模中的应用", 《2009年促进中部崛起专家论坛暨第五届湖北科技论坛——装备制造产业发展论坛论文集（上）》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108817230A (en) * | 2018-07-19 | 2018-11-16 | 安徽江淮汽车集团股份有限公司 | A kind of mould structure |
| CN111167955A (en) * | 2020-02-29 | 2020-05-19 | 奥林汽车零部件（常熟）有限公司 | Forming die for inward-hooking curled edge part |
| CN112338063A (en) * | 2020-10-21 | 2021-02-09 | 株洲华信精密工业股份有限公司 | Stamping device is used in metal accessories production |
| WO2024017002A1 (en) * | 2022-07-22 | 2024-01-25 | 蔚来汽车科技(安徽)有限公司 | Drawing punching die |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107052162B (en) | 2018-12-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107052162A (en) | Punch stretching mould | |
| CN102764807B (en) | Manufacturing method of press product and press forming apparatus | |
| JP6070913B1 (en) | Press molding apparatus and press molding method | |
| US8850864B2 (en) | Press-processing method, and press-processing apparatus | |
| JP5281519B2 (en) | Press forming method | |
| CN103521622B (en) | A kind of ultrahigh-strength steel plates hat section part punching manufacturing process | |
| CN103831335B (en) | A kind of high-tension plate forming device | |
| KR20160091995A (en) | Press molding device, production method for press molded article using said molding device, and press molded article | |
| TWI701091B (en) | Forming die with linked lateral auxiliary pressurization | |
| CN101811158A (en) | Trimming mould for automobile oil sump | |
| CN110064696A (en) | A kind of asynchronous binder drawing and moulding mold and its moulding process | |
| CN107186081B (en) | One kind being used for Rear cover inner molding die | |
| JPS6358651B2 (en) | ||
| CN107470467A (en) | A kind of multiple step format bulging punching composite die and its method of work | |
| CN214417454U (en) | Side flanging double-acting mechanism of automobile body-in-white progressive die | |
| JP5938074B2 (en) | Drawing method and apparatus | |
| JP3459004B2 (en) | Press molding method and apparatus | |
| CA3056357A1 (en) | Press form device and method for producing press-formed articles | |
| CN112845864A (en) | Continuous shallow drawing forming die and method for inner plate of trunk | |
| CN104785636B (en) | Stretching mold | |
| CN203018554U (en) | Drawing mould | |
| CN208290521U (en) | A kind of relay electric panel room combination head pressing tool | |
| JPS60190327A (en) | Draw molding method and device therefor | |
| CN107876616B (en) | A kind of drawing die and its drawing work of high-tension metal plate material | |
| CN111069430A (en) | Composite die structure with driving block on lower pressing core |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181221 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |