CN113426892A - Hole drawing process and die structure meeting requirement that hole drawing height is larger than twice material thickness - Google Patents
Hole drawing process and die structure meeting requirement that hole drawing height is larger than twice material thickness Download PDFInfo
- Publication number
- CN113426892A CN113426892A CN202110703236.1A CN202110703236A CN113426892A CN 113426892 A CN113426892 A CN 113426892A CN 202110703236 A CN202110703236 A CN 202110703236A CN 113426892 A CN113426892 A CN 113426892A
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- die
- punching
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- 239000000463 material Substances 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 26
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 62
- 238000004080 punching Methods 0.000 claims abstract description 33
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 30
- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 238000007599 discharging Methods 0.000 claims description 13
- 238000007493 shaping process Methods 0.000 claims description 13
- 238000004049 embossing Methods 0.000 claims description 10
- 238000005520 cutting process Methods 0.000 claims description 9
- 238000009966 trimming Methods 0.000 claims description 7
- 239000002699 waste material Substances 0.000 claims description 6
- 229910001873 dinitrogen Inorganic materials 0.000 claims 2
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005336 cracking Methods 0.000 description 3
- 238000010009 beating Methods 0.000 description 2
- 238000007730 finishing process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Images
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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/001—Shaping combined with punching, e.g. stamping and perforating
-
- 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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
-
- 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
- B21D37/08—Dies with different parts for several steps in a process
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention relates to the technical field of stamping dies, in particular to a hole drawing process and a die structure meeting the requirement that the hole drawing height is more than twice of material thickness, which comprises an upper die plate and a lower die plate, wherein a convex working position and a convex finishing working position are arranged between the upper die plate and the lower die plate, the convex working position comprises a first nitrogen spring arranged in the upper die plate, the convex working position also comprises a first lower base plate arranged on the lower die plate, a first lower ejector rod is arranged on the first lower base plate in a penetrating way, the first upper ejector rod corresponds to the first upper ejector rod, and a lower convex punching head is arranged on the first lower base plate. On the basis, the pre-punching and hole drawing processes are carried out, so that the hole drawing height meeting the requirements is further achieved.
Description
Technical Field
The invention relates to the technical field of stamping dies, in particular to a hole drawing process and a die structure which meet the requirement that the hole drawing height is more than twice the material thickness.
Background
In the technical field of the existing stamping die, the normal hole drawing process is to pre-punch a hole and then draw the hole, but because the material used for drawing the hole is insufficient, the extension limit of the material cannot reach the height more than twice the material thickness in the hole drawing process, the phenomena of hole drawing cracking and the like are easy to occur, and the product quality and the production efficiency are influenced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a hole drawing process and a die structure which can meet the requirement that the hole drawing height is more than twice the material thickness, and the technical problem to be solved is how to meet the technical requirement that the hole drawing height is more than twice the material thickness by improving the die structure and the production process.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: a hole drawing process meeting the requirement that the hole drawing height is more than twice the material thickness sequentially comprises the following steps: punching, cutting waste, trimming, chamfering, lettering, embossing, primary flanging, secondary flanging, upward embossing, convex shaping, punching, waste cutting, hole drawing, frame integral hole drawing, shaping, primary side punching, secondary side punching and cutting.
The utility model provides a satisfy and take out hole height and be greater than thick mould structure of twice material, including cope match-plate pattern and lower bolster, be provided with between cope match-plate pattern and the lower bolster and beat protruding station and put in order protruding station, beat protruding station including setting up the first nitrogen spring in the cope match-plate pattern, be provided with first last ejector pin on the first nitrogen spring, the bottom of first last ejector pin is provided with first spring, beat protruding station still including setting up the first backing plate on the lower bolster, wear to be equipped with first ejector pin on the first backing plate, first ejector pin is corresponding with first last ejector pin, still be provided with down on the first backing plate and beat protruding drift.
Further, the convex station is including setting up the second air spring on the cope match-plate pattern, be provided with ejector pin on the second air spring, be provided with ejector pin and second on the ejector pin on the second and go up the cushion, the bottom of going up the cushion is provided with the second upper padding plate, and convex station is still including setting up the second lower bolster on the lower bolster, is provided with the bottom plate on the second lower bolster, is provided with down the ejector plate down on the bottom plate, wears to be equipped with down the convex drift of whole on bottom plate and the lower ejector plate jointly.
Furthermore, a punching station is arranged between the upper template and the lower template and comprises a third upper padding plate arranged on the upper template, an upper fixing plate is arranged on the third upper padding plate, an upper discharging plate is arranged on the upper fixing plate, punches are arranged on the upper discharging plate and the upper fixing plate in a penetrating mode, a third lower ejector rod arranged on the lower template is arranged on the punching station, and a plug screw is arranged on the third lower ejector rod.
Further, be provided with between cope match-plate pattern and the lower bolster and take out the hole station, it includes the fourth nitrogen spring that sets up on the cope match-plate pattern to find time the station, is provided with the fourth ejector pin on the fourth nitrogen spring, still is provided with the fourth upper padding plate on the fourth nitrogen spring, takes out the hole station still including setting up the fourth bottom plate on the lower bolster, is provided with on the fourth bottom plate and takes out the hole drift, takes out the hole drift and goes up the ejector pin with the fourth and correspond.
Furthermore, a frame whole-hole-drawing station is arranged between the upper template and the lower template, the frame whole-hole-drawing station comprises a fifth nitrogen spring arranged on the upper template, a fifth upper ejector rod is arranged on the fifth nitrogen spring, a fifth upper base plate is arranged on the fifth upper ejector rod, a fifth upper discharging plate is arranged on the fifth upper base plate, a whole-hole punch is arranged on the fifth upper discharging plate and the fifth upper base plate in a penetrating mode, the frame whole-hole-drawing station further comprises a fifth lower fixing plate arranged on the lower template, and a lower ejecting plate is arranged on the fifth lower fixing plate.
The beneficial effect that this technical scheme brought is: the invention relates to a hole drawing process and a die structure meeting the requirement that the height of a drawn hole is more than twice the thickness of a material, wherein a protruding process and a convex finishing process are added before a pre-punching step, the protruding process can pre-pull the surrounding material in the height direction of the drawn hole, the convex finishing process can extrude and extend the pre-pulled material to the position of the drawn hole, so that the pre-pulled material is provided with a hole drawing prototype and reaches partial height, and the pre-punching and hole drawing processes are carried out on the basis, so that the required height of the drawn hole is met, and meanwhile, the situation of cracking and the like cannot occur in the drawn hole.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of a bulging station in an embodiment of a die structure satisfying a requirement that a hole drawing height is more than twice a material thickness according to the present invention;
FIG. 2 is a schematic structural diagram of a convex shaping station of a die structure satisfying a requirement that a hole drawing height is more than twice a material thickness in an embodiment of the invention;
FIG. 3 is a schematic structural diagram of a punching station in an embodiment of a die structure satisfying a requirement that a drawing hole height is more than twice a material thickness according to the present invention;
FIG. 4 is a schematic structural diagram of a hole drawing station in an embodiment of a die structure according to the present invention, wherein the hole drawing height is greater than twice the material thickness;
FIG. 5 is a schematic structural view of a frame-integrated hole-drawing station of a die structure satisfying a hole-drawing height greater than twice a material thickness according to an embodiment of the present invention;
in the figure: 1-upper template, 2-lower template, 3-raising station, 4-raising station, 31-first nitrogen spring, 32-first upper ejector rod, 33-first spring, 34-first lower cushion plate, 35-first lower ejector rod, 36-lower raising punch, 41-second nitrogen spring, 42-second upper ejector rod, 43-upper ejector pin, 44-second upper cushion block, 45-second upper cushion plate, 46-second lower cushion plate, 47-lower fixing plate, 48-lower ejector plate, 49-lower raising punch, 5-punching station, 51-third upper cushion plate, 52-upper fixing plate, 53-upper discharging plate, 54-punch, 55-third lower ejector rod, 56-screw plug, 6-hole-drawing station, 61-fourth nitrogen spring, 62-fourth upper ejector rod, 63-fourth upper backing plate, 64-fourth lower fixing plate, 65-hole drawing punch, 7-frame whole hole drawing station, 71-fifth nitrogen spring, 72-fifth upper ejector rod, 73-fifth upper backing plate, 74-fifth upper stripper plate, 75-whole hole punch, 76-fifth lower fixing plate and 77-lower ejector plate.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, and it should be understood that the preferred embodiments described herein are merely for purposes of illustration and explanation, and are not intended to limit the present invention.
The hole drawing process which meets the requirement that the hole drawing height is more than twice the material thickness sequentially comprises the following steps of: punching, cutting waste, trimming, chamfering, lettering, embossing, primary flanging, secondary flanging, upward embossing, convex shaping, punching, waste cutting, hole drawing, frame shaping and hole drawing, shaping, primary side punching, secondary side punching and cutting. Therefore, before the pre-punching step, the processes of embossing and convex trimming are added, the embossing process can pre-stretch the surrounding materials in the height direction of the drawing hole, the convex trimming process can extrude and extend the pre-stretched materials to the drawing hole position, so that the pre-punched materials are provided with the drawing hole rudiment and reach partial height, and on the basis, the pre-punching and hole-drawing processes are carried out, so that the required drawing hole height is met, and meanwhile, the situations of cracking and the like cannot occur in the drawing hole.
As shown in fig. 1 to 5, this kind of die structure satisfying that draw hole height is greater than twice material thickness, including cope match-plate pattern 1 and lower bolster 2, be provided with between cope match-plate pattern 1 and the lower bolster 2 and beat protruding station 3 and whole protruding station 4, beat protruding station 3 including setting up first nitrogen spring 31 in cope match-plate pattern 1, be provided with first upper ejector pin 32 on the first nitrogen spring 31, the bottom of first upper ejector pin 32 is provided with first spring 33, beat protruding station 3 still including setting up first backing plate 34 on lower bolster 2, wear to be equipped with first lower ejector pin 35 on the first backing plate 34, first lower ejector pin 35 is corresponding with first upper ejector pin 32, still be provided with down protruding drift 36 on the first backing plate 34, can make and beat protruding through lower protruding drift 36 pair of beating like this, first nitrogen spring 31 can play the anti-apical effect simultaneously, improve the stability of beating protruding in-process. And a reinforcing stop block and a wear-resistant block can be arranged around the bearing and are respectively used for improving the effect of resisting and limiting and the wear-resistant performance.
In this embodiment, the convex shaping station 4 includes a second nitrogen spring 41 disposed on the upper die plate 1, a second upper ejector rod 42 is disposed on the second nitrogen spring 41, an upper ejector pin 43 and a second upper cushion block 44 are disposed on the second upper ejector rod 42, a second upper cushion plate 45 is disposed at the bottom of the upper cushion block 44, the convex shaping station 4 further includes a second lower cushion plate 46 disposed on the lower die plate 2, a lower fixing plate 47 is disposed on the second lower cushion plate 46, a lower ejector plate 48 is disposed on the lower fixing plate 47, a lower convex shaping punch 49 is disposed on the lower fixing plate 47 and the lower ejector plate 48 in a penetrating manner, so that the second upper ejector rod 42 is driven by the second nitrogen spring 41 to drive the second upper cushion plate 45 to move, and then the workpiece is lifted to the convex shaping purpose through the lower convex shaping punch 49.
In this embodiment, a punching station 5 is arranged between the upper die plate 1 and the lower die plate 2, the punching station 5 includes a third upper pad 51 arranged on the upper die plate 1, an upper fixing plate 52 is arranged on the third upper pad 51, an upper discharging plate 53 is arranged on the upper fixing plate 52, a punch 54 is arranged on the upper discharging plate 53 and the upper fixing plate 52 in a penetrating manner, the punching station 5 further includes a third lower ejector rod 55 arranged on the lower die plate 2, and a plug screw 56 is arranged on the third lower ejector rod 55, so that a punching effect is realized by the punch 54, and a function of matching punching is achieved by the plug screw 56.
In this embodiment, a hole drawing station 6 is arranged between the upper die plate 1 and the lower die plate 2, the hole drawing station 6 includes a fourth nitrogen spring 61 arranged on the upper die plate 1, a fourth upper ejector rod 62 is arranged on the fourth nitrogen spring 61, a fourth upper backing plate 63 is further arranged on the fourth nitrogen spring 61, the hole drawing station 6 further includes a fourth lower fixing plate 64 arranged on the lower die plate 2, a hole drawing punch 65 is arranged on the fourth lower fixing plate 64, the hole drawing punch 65 corresponds to the fourth upper ejector rod 62, and therefore the hole drawing punch 65 is used for achieving a hole drawing effect.
In this embodiment, a frame complete hole-drawing station 7 is disposed between the upper die plate 1 and the lower die plate 2, the frame complete hole-drawing station 7 includes a fifth nitrogen spring 71 disposed on the upper die plate 1, a fifth upper ejector rod 72 is disposed on the fifth nitrogen spring 71, a fifth upper cushion plate 73 is disposed on the fifth upper ejector rod 72, a fifth upper discharging plate 74 is disposed on the fifth upper cushion plate 73, a hole-drawing punch 75 jointly penetrates through the fifth upper discharging plate 74 and the fifth upper cushion plate 73, the frame complete hole-drawing station 7 further includes a fifth lower fixing plate 76 disposed on the lower die plate 2, and a lower ejecting plate 77 is disposed on the fifth lower fixing plate 76, so that a hole-drawing effect of the frame is achieved through the hole-drawing punch 75.
In summary, the hole drawing process and the die structure for meeting the requirement that the height of the hole drawing is more than two times of the material thickness are provided, the steps of embossing and convex trimming are added before the step of pre-punching, surrounding materials can be pre-tensioned in the height direction of the hole drawing firstly through the embossing process, the pre-tensioned materials can be extruded and extended to the position of the hole drawing through the convex trimming process, the pre-punched hole drawing process and the hole drawing process are carried out on the basis, the height of the hole drawing meeting the requirement is achieved, and meanwhile, the hole drawing cannot crack and the like.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A hole drawing process meeting the requirement that the hole drawing height is greater than twice the material thickness is characterized in that: the method sequentially comprises the following steps: punching, cutting waste, trimming, chamfering, lettering, embossing, primary flanging, secondary flanging, upward embossing, convex shaping, punching, waste cutting, hole drawing, frame integral hole drawing, shaping, primary side punching, secondary side punching and cutting.
2. The utility model provides a satisfy and take out hole height and be greater than twice mould structure that the material is thick which characterized in that: including cope match-plate pattern (1) and lower bolster (2), cope match-plate pattern (1) with be provided with between lower bolster (2) and beat protruding station (3) and put protruding station (4) in order, beat protruding station (3) including setting up first nitrogen spring (31) in cope match-plate pattern (1), be provided with first ejector pin (32) on first nitrogen spring (31), the bottom of first ejector pin (32) is provided with first spring (33), it is still including setting up to beat protruding station (3) first lower bolster (34) on lower bolster (2), wear to be equipped with first ejector pin (35) on first lower bolster (34), first ejector pin (35) with first ejector pin (32) are corresponding, still be provided with down on first lower bolster (34) and beat protruding drift (36).
3. The die structure of claim 2, wherein the height of the drawing hole is greater than twice the thickness of the material, and the die structure comprises: whole protruding station (4) is including setting up second nitrogen gas spring (41) on cope match-plate pattern (1), be provided with ejector pin (42) on second nitrogen gas spring (41), be provided with ejector pin (43) and second on ejector pin (42) on the second and go up cushion (44), the bottom of going up cushion (44) is provided with second upper padding plate (45), whole protruding station (4) are still including setting up second lower padding plate (46) on lower bolster (2), be provided with bottom plate (47) on second lower padding plate (46), be provided with down ejector plate (48) on bottom plate (47), bottom plate (47) with lower ejector plate (48) are gone up and are worn to be equipped with down and put protruding drift (49) jointly.
4. The die structure of claim 2, wherein the height of the drawing hole is greater than twice the thickness of the material, and the die structure comprises: the punching die is characterized in that a punching station (5) is arranged between the upper die plate (1) and the lower die plate (2), the punching station (5) comprises a third upper padding plate (51) arranged on the upper die plate (1), an upper fixing plate (52) is arranged on the third upper padding plate (51), an upper discharging plate (53) is arranged on the upper fixing plate (52), a punch (54) is jointly penetrated and arranged on the upper discharging plate (53) and the upper fixing plate (52), the punching station (5) further comprises a third lower ejector rod (55) arranged on the lower die plate (2), and a plug screw (56) is arranged on the third lower ejector rod (55).
5. The die structure of claim 2, wherein the height of the drawing hole is greater than twice the thickness of the material, and the die structure comprises: the hole drawing device is characterized in that a hole drawing station (6) is arranged between the upper template (1) and the lower template (2), the hole drawing station (6) comprises a fourth nitrogen spring (61) arranged on the upper template (1), a fourth upper ejector rod (62) is arranged on the fourth nitrogen spring (61), a fourth upper padding plate (63) is further arranged on the fourth nitrogen spring (61), the hole drawing station (6) further comprises a fourth lower fixing plate (64) arranged on the lower template (2), a hole drawing punch head (65) is arranged on the fourth lower fixing plate (64), and the hole drawing punch head (65) corresponds to the fourth upper ejector rod (62).
6. The die structure of claim 2, wherein the height of the drawing hole is greater than twice the thickness of the material, and the die structure comprises: the hole punching die is characterized in that a frame whole hole-drawing station (7) is arranged between the upper die plate (1) and the lower die plate (2), the frame whole hole-drawing station (7) comprises a fifth nitrogen spring (71) arranged on the upper die plate (1), a fifth upper ejector rod (72) is arranged on the fifth nitrogen spring (71), a fifth upper cushion plate (73) is arranged on the fifth upper ejector rod (72), a fifth upper discharging plate (74) is arranged on the fifth upper cushion plate (73), a whole hole punch (75) is arranged on the fifth upper discharging plate (74) and the fifth upper cushion plate (73) in a penetrating mode, the frame whole hole-drawing station (7) further comprises a fifth lower fixing plate (76) arranged on the lower die plate (2), and a lower ejecting plate (77) is arranged on the fifth lower fixing plate (76).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110703236.1A CN113426892A (en) | 2021-06-24 | 2021-06-24 | Hole drawing process and die structure meeting requirement that hole drawing height is larger than twice material thickness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110703236.1A CN113426892A (en) | 2021-06-24 | 2021-06-24 | Hole drawing process and die structure meeting requirement that hole drawing height is larger than twice material thickness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113426892A true CN113426892A (en) | 2021-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110703236.1A Pending CN113426892A (en) | 2021-06-24 | 2021-06-24 | Hole drawing process and die structure meeting requirement that hole drawing height is larger than twice material thickness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113426892A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114273516A (en) * | 2021-12-28 | 2022-04-05 | 祥鑫科技(广州)有限公司 | Hole flanging process for thick high-strength plate |
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|---|---|---|---|---|
| CN102500670A (en) * | 2011-10-17 | 2012-06-20 | 东莞市祥鑫汽车模具制品有限公司 | Flanged hole processing method for hole flanging structure of special specifications |
| CN203991968U (en) * | 2014-02-18 | 2014-12-10 | 上海日晗精密机械有限公司 | A kind of packing and backhand bag mould structure of realizing excessive height hole flanging |
| US20150336155A1 (en) * | 2013-01-11 | 2015-11-26 | Kabushiki Kaisha F.C.C. | Method for forming a pressed component, method for manufacturing a pressed component, and die apparatus for forming a pressed component |
| CN205463928U (en) * | 2016-03-03 | 2016-08-17 | 武汉日晗精密机械有限公司 | Prevent mould of high hole flanging fracture |
| CN105945138A (en) * | 2016-06-28 | 2016-09-21 | 无锡诺飞高新技术有限公司 | Continuous stamping method for car seat foot |
| CN206009545U (en) * | 2016-08-11 | 2017-03-15 | 上海新朋金属制品有限公司 | A kind of hole flanging mold of slab raising bag backward extrusion |
| CN207533799U (en) * | 2017-11-12 | 2018-06-26 | 无锡有为精密模具有限公司 | A kind of mold for increasing flanging bore height |
| CN212264292U (en) * | 2020-03-23 | 2021-01-01 | 苏州平山精密部件有限公司 | Thick material sprouting mold structure |
-
2021
- 2021-06-24 CN CN202110703236.1A patent/CN113426892A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102500670A (en) * | 2011-10-17 | 2012-06-20 | 东莞市祥鑫汽车模具制品有限公司 | Flanged hole processing method for hole flanging structure of special specifications |
| US20150336155A1 (en) * | 2013-01-11 | 2015-11-26 | Kabushiki Kaisha F.C.C. | Method for forming a pressed component, method for manufacturing a pressed component, and die apparatus for forming a pressed component |
| CN203991968U (en) * | 2014-02-18 | 2014-12-10 | 上海日晗精密机械有限公司 | A kind of packing and backhand bag mould structure of realizing excessive height hole flanging |
| CN205463928U (en) * | 2016-03-03 | 2016-08-17 | 武汉日晗精密机械有限公司 | Prevent mould of high hole flanging fracture |
| CN105945138A (en) * | 2016-06-28 | 2016-09-21 | 无锡诺飞高新技术有限公司 | Continuous stamping method for car seat foot |
| CN206009545U (en) * | 2016-08-11 | 2017-03-15 | 上海新朋金属制品有限公司 | A kind of hole flanging mold of slab raising bag backward extrusion |
| CN207533799U (en) * | 2017-11-12 | 2018-06-26 | 无锡有为精密模具有限公司 | A kind of mold for increasing flanging bore height |
| CN212264292U (en) * | 2020-03-23 | 2021-01-01 | 苏州平山精密部件有限公司 | Thick material sprouting mold structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114273516A (en) * | 2021-12-28 | 2022-04-05 | 祥鑫科技(广州)有限公司 | Hole flanging process for thick high-strength plate |
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