CN113118307B - One-step negative angle structure bending forming die - Google Patents
One-step negative angle structure bending forming die Download PDFInfo
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- CN113118307B CN113118307B CN202110317011.2A CN202110317011A CN113118307B CN 113118307 B CN113118307 B CN 113118307B CN 202110317011 A CN202110317011 A CN 202110317011A CN 113118307 B CN113118307 B CN 113118307B
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- 238000005452 bending Methods 0.000 title claims abstract description 28
- 230000007246 mechanism Effects 0.000 claims abstract description 28
- 230000007704 transition Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract description 29
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 8
- 238000007493 shaping process Methods 0.000 description 8
- 230000009471 action Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000004080 punching Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Classifications
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- 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
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/002—Positioning devices
-
- 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
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses a one-step negative angle structure bending forming die, which comprises: the upper die mechanism comprises an upper die base and an upper stripper plate, the upper stripper plate is elastically connected to the upper die base, a right-angle forming assembly and a negative-angle forming assembly are further arranged at the bottom of the upper die base, and the right-angle forming assembly and the negative-angle forming assembly are symmetrically arranged on two sides of the upper stripper plate; the lower die mechanism comprises a lower die base and a lower backing plate, the lower backing plate is fixedly mounted on the lower die base, a lower die forming assembly of which the position corresponds to the upper stripper plate is arranged on the lower backing plate, a workpiece is placed on the lower die forming assembly, a lower ejector rod is arranged below the lower die forming assembly, the lower ejector rod is elastically connected onto the lower die base, a wedge slotting tool is further arranged on one side of the lower die forming assembly, and the wedge slotting tool is fixedly mounted on the lower backing plate. The one-step negative angle structure bending forming die disclosed by the invention has the advantages that the bend angle and the right angle are formed in one step, the processing quality is improved, and the material and die cost are saved.
Description
Technical Field
The invention belongs to the field of metal stamping dies, and particularly relates to a one-step negative angle structure bending forming die.
Background
The punching process is a metal processing method, which is based on the plastic deformation of metal, and applies pressure to the plate by using a die and punching equipment to make the plate generate plastic deformation or separation, thereby obtaining parts with certain shape, size and performance.
The traditional negative angle folding process generally needs to be divided into two procedures, wherein the first procedure is to bend the material to form a right angle, and the second procedure is to bend the material which is bent into the right angle again to form a negative angle. The negative angle folding process has low material forming efficiency, needs to repeatedly position materials and influences the processing precision.
Disclosure of Invention
The invention aims to: the utility model provides a one-step negative angle structure forming die that bends, not only reduce a process, bent angle and one-step shaping of right angle improve processingquality to save material and mould cost.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a one-step negative angle structure forming die that bends, includes:
the upper die mechanism comprises an upper die base and an upper stripper plate, the upper stripper plate is elastically connected to the upper die base, the bottom of the upper die base is also provided with a right-angle forming assembly and a negative-angle forming assembly, and the right-angle forming assembly and the negative-angle forming assembly are symmetrically arranged on two sides of the upper stripper plate;
the lower die mechanism comprises a lower die base and a lower backing plate, the lower backing plate is fixedly mounted on the lower die base, a lower die forming assembly of which the position corresponds to that of an upper stripper plate is arranged on the lower backing plate, a workpiece is placed on the lower die forming assembly, a lower ejector rod is arranged below the lower die forming assembly and elastically connected onto the lower die base, and a wedge slotting tool is further arranged on one side of the lower die forming assembly and fixedly mounted on the lower backing plate.
As a further description of the above technical solution:
the upper die mechanism further comprises an upper pad foot, an upper locking plate and an upper striking plate, the upper die base is fixedly installed on the upper pad foot, the upper pad foot is fixedly installed on the upper locking plate, the upper striking plate is elastically connected onto the upper locking plate through a high-strength rubber, an upper ejector rod is further arranged on the upper striking plate, the upper ejector rod penetrates through the upper die base, and the upper stripper plate is fixedly installed on the upper ejector rod.
As a further description of the above technical solution:
the right angle forming assembly comprises a first stop block and a bending splicing strip, the first stop block is fixedly installed on the upper die base, and the bending splicing strip is fixedly installed on the first stop block.
As a further description of the above technical solution:
negative angle shaping subassembly includes the second dog, the sliding seat, the connecting block, the screw is beaten to slide wedge pendulum piece and stopper, second dog fixed mounting is on the upper die base, the sliding seat sets up in second dog one side, connecting block sliding connection is on the sliding seat, slide wedge pendulum piece fixed mounting is on the connecting block, slide wedge pendulum piece one side is provided with negative angle profiled surface, relative opposite side is provided with first inclined plane, the stopper is beated the screw and is passed second dog and fixed mounting on the slide wedge pendulum piece, the cover is equipped with the spring on the screw is beated to the stopper, the stopper is beated the screw and is passed through spring elastic connection on the second dog.
As a further description of the above technical solution:
the upper negative angle forming surface and the bottom surface of the inclined wedge swinging block are in arc transition.
As a further description of the above technical solution:
the second stop block is also provided with a cutter insert block, and the position of the cutter insert block corresponds to the wedge slotting cutter.
As a further description of the above technical solution:
the lower die mechanism further comprises a lower pad foot and a lower supporting plate, the lower pad foot is fixedly installed on the lower supporting plate, and the lower die base is fixedly installed on the lower pad foot.
As a further description of the above technical solution:
the lower die forming assembly comprises a lower forming seat and a lower die forming male slider, the lower forming seat is fixedly mounted on a lower base plate, a right-angle forming surface is arranged on one side of the lower forming seat, the lower die forming male slider is connected to the lower forming seat in a sliding mode, the contact surface of the lower die forming male slider and the lower forming seat is an inclined surface, and the lower ejector rod abuts against the bottom of the lower die forming male slider.
As a further description of the above technical solution:
the bottom of the lower die forming male sliding block is provided with a sliding groove, and the top of the lower ejector rod is connected in the sliding groove in a sliding mode.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. in the invention, in the stamping process, when the die is in a die opening state, the wedge swinging block and the lower die forming male sliding block are in a free recovery state under the action of spring force (namely, an upper spring of a plug screw and an elastic part below a lower ejector rod are in a free state and are not compressed or stretched); when the upper die mechanism descends and the upper die mechanism just contacts the surface of the material, the upper stripper plate firstly presses the material on the lower die forming male slide block, and the lower die forming male slide block slides to the lower right direction (until the bottom of the upper stripper plate abuts against the lower base plate) along with the descending of the upper stripper plate; the upper die mechanism continues to move downwards, the upper stripper plate is compressed, the bending splicing strips of the right-angle forming assembly are matched with the right-angle forming surface of the lower forming seat, one side (left side) of a material is bent for 90 degrees, the bending process of the wedge swinging block is divided into two parts, the wedge swinging block in the first part is not in contact with the inclined surface of the wedge slotting tool due to the arrangement of the first inclined surface, the wedge swinging block bends one side (right side) of the material for 90 degrees, the vertical side surface of the wedge swinging block in the second part is in contact with the inclined surface of the wedge slotting tool, the wedge slotting tool is pushed leftwards, and the material (right side) on the side which is bent for 90 degrees is bent for a negative angle; after the punching is completed, the upper die mechanism moves upwards, the upper stripper plate prevents materials from being stuck on the upper die mechanism, the wedge swinging block returns under the driving of the plug screw, and the lower die forming male sliding block returns to the upper left under the action of the ejector rod, so that the materials forming a negative angle can be taken down conveniently. The bend angle and the right angle are formed in one step, so that the processing quality is improved, and the material and the die cost are saved.
2. In the invention, during stamping, the inclined wedge swinging block is connected on the sliding seat in a sliding manner through the connecting block, so that smooth sliding is ensured, and the precision of processing is ensured; the negative angle forming assembly ensures the matching precision of the wedge slotting tool and improves the processing quality by arranging the position close to the tool insert on the second stop block; the lower ejector rod is connected in the sliding groove in a sliding mode, the position change interval of the lower die forming male sliding block in the horizontal direction is limited, the lower die forming male sliding block is matched with the wedge swinging block precisely, and the negative angle forming quality of materials is guaranteed.
3. In the invention, the upper negative angle forming surface and the bottom surface of the wedge swinging block are in arc transition, so that the surface of a material is prevented from being damaged when the negative angle is folded when the negative angle is moved leftwards.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic view of a mold opening state structure of a one-step negative-angle structure bending forming mold.
Fig. 2 is a schematic structural diagram of a one-step negative angle structure bending forming die with a state that an upper die mechanism and a lower die mechanism are just in contact with each other.
Fig. 3 is a schematic structural diagram of a mold closing state of a one-step negative-angle structure bending forming mold.
Fig. 4 is a schematic structural diagram of a negative angle forming assembly in a one-step negative angle structure bending forming die.
Fig. 5 is a schematic structural diagram of a lower die forming assembly in the one-step negative angle structure bending forming die.
Fig. 6 is a schematic view of a bottom view angle structure of a male slider formed by a lower die in a one-step negative angle structure bending forming die.
Illustration of the drawings:
1. an upper die mechanism; 11. an upper die holder; 12. an upper stripper plate; 13. a foot pad is arranged; 14. an upper lock plate; 15. an upper striking plate; 151. an ejector rod is arranged; 2. a lower die mechanism; 21. a lower die holder; 22. a lower base plate; 23. a lower foot pad; 24. a lower supporting plate; 3. a right angle forming assembly; 31. a first stopper; 32. bending the splicing strips; 4. a negative angle forming assembly; 41. a second stopper; 42. a sliding seat; 43. connecting blocks; 44. a wedge pendulum block; 441. an upper negative angle molding surface; 442. a first inclined plane; 45. plugging and screwing screws; 5. a lower die forming assembly; 51. a lower forming base; 52. forming a male sliding block by a lower die; 521. a chute; 6. a lower ejector rod; 7. a tapered wedge slotting tool; 8. 4, high-strength rubber; 9. and (5) a workpiece.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: the utility model provides a one-step negative angle structure forming die that bends, includes:
the upper die mechanism 1 comprises an upper die base 11 and an upper stripper plate 12, wherein the upper stripper plate 12 is elastically connected to the upper die base 11, the bottom of the upper die base 11 is also provided with a right-angle forming assembly 3 and a negative-angle forming assembly 4, and the right-angle forming assembly 3 and the negative-angle forming assembly 4 are symmetrically arranged on two sides of the upper stripper plate 12;
The upper die mechanism 1 further comprises an upper pad 13, an upper locking plate 14 and an upper knockout plate 15, the upper die base 11 is fixedly installed on the upper pad 13, the upper pad 13 is fixedly installed on the upper locking plate 14, the upper knockout plate 15 is elastically connected to the upper locking plate 14 through a high-strength rubber 8, an upper ejector rod 151 is further arranged on the upper knockout plate 15, the upper ejector rod 151 penetrates through the upper die base 11, and the upper stripper plate 12 is fixedly installed on the upper ejector rod 151.
The right angle forming assembly 3 comprises a first stop block 31 and a bending splicing strip 32, wherein the first stop block 31 is fixedly arranged on the upper die base 11, and the bending splicing strip 32 is fixedly arranged on the first stop block 31.
Negative angle shaping subassembly 4 includes second dog 41, the sliding seat 42, connecting block 43, slide wedge pendulum piece 44 and stopper are beaten screw 45, second dog 41 fixed mounting is on upper die base 11, sliding seat 42 sets up in second dog 41 one side, connecting block 43 sliding connection is on sliding seat 42, slide wedge pendulum piece 44 fixed mounting is on connecting block 43, slide wedge pendulum piece 44 one side is provided with negative angle shaping face 441, relative opposite side is provided with first inclined plane 442, stopper is beaten screw 45 and passes second dog 41 and fixed mounting on slide wedge pendulum piece 44, the cover is equipped with the spring on the stopper is beated screw 45, stopper is beaten screw 45 and passes through spring elastic connection on second dog 41.
The upper negative angle forming surface 441 and the bottom surface of the wedge swing block 44 are in arc transition, so that the surface of the material is prevented from being damaged when the negative angle is folded when the material is moved leftwards.
The second stop block 41 is further provided with a cutter insert 46, the position of the cutter insert 46 corresponds to the wedge slotting tool 7, the negative angle forming assembly is positioned, and the machining precision is improved.
The lower die mechanism 2 further comprises a lower pad 23 and a lower support plate 24, the lower pad 23 is fixedly mounted on the lower support plate 24, and the lower die base 21 is fixedly mounted on the lower pad 23. The lower die forming assembly 5 comprises a lower forming base 51 and a lower die forming male slider 52, the lower forming base 51 is fixedly mounted on the lower backing plate 22, a right-angle forming surface is arranged on one side of the lower forming base 51, the lower die forming male slider 52 is slidably connected on the lower forming base 51, the contact surface of the lower die forming male slider 52 and the lower forming base 51 is an inclined surface, and the lower ejector rod 6 abuts against the bottom of the lower die forming male slider 52.
The bottom of the lower die forming male sliding block 52 is provided with a sliding groove 521, the top of the lower ejector rod 6 is slidably connected in the sliding groove 521, and the position change interval of the lower die forming male sliding block in the horizontal direction is limited, so that the lower die forming male sliding block and the wedge swinging block are precisely matched, and the negative angle forming quality of materials is ensured.
The working principle is as follows: in the stamping process, when the die is in a die opening state, the inclined wedge swinging block and the lower die forming male sliding block are in a free recovery state under the action of spring force (namely, an upper spring of a plug screw and an elastic part below a lower ejector rod are in a free state and are not compressed or stretched); when the upper die mechanism descends and the upper die mechanism just contacts the surface of the material, the upper stripper plate firstly presses the material on the lower die forming male slider, and the lower die forming male slider slides to the lower right side along with the descending of the upper stripper plate (until the bottom abuts against the lower base plate); the upper die mechanism continues to move downwards, the upper stripper plate is compressed, the bending splicing strips of the right-angle forming assembly are matched with the right-angle forming surface of the lower forming seat, one side (left side) of a material is bent for 90 degrees, the bending process of the wedge swinging block is divided into two parts, the wedge swinging block in the first part is not in contact with the inclined surface of the wedge slotting tool due to the arrangement of the first inclined surface, the wedge swinging block bends one side (right side) of the material for 90 degrees, the vertical side surface of the wedge swinging block in the second part is in contact with the inclined surface of the wedge slotting tool, the wedge slotting tool is pushed leftwards, and the material (right side) on the side which is bent for 90 degrees is bent for a negative angle; after the punching is completed, the upper die mechanism moves upwards, the upper stripper plate prevents materials from being stuck on the upper die mechanism, the wedge swinging block returns under the driving of the plug screw, and the lower die forming male sliding block returns to the upper left under the action of the ejector rod, so that the materials forming a negative angle can be taken down conveniently. The bend angle and the right angle are formed in one step, so that the processing quality is improved, and the material and the die cost are saved. During stamping, the wedge swinging block is connected to the sliding seat in a sliding manner through the connecting block, so that smooth sliding is guaranteed, and precision machining is guaranteed; the negative angle forming assembly ensures the matching precision of the wedge slotting tool and improves the processing quality by arranging the position close to the tool insert on the second stop block; the lower ejector rod is connected in the sliding groove in a sliding mode, the position change interval of the lower die forming male sliding block in the horizontal direction is limited, the lower die forming male sliding block is matched with the wedge swinging block precisely, and the negative angle forming quality of materials is guaranteed. The upper negative angle forming surface and the bottom surface of the wedge swinging block are in arc transition, so that the surface of the material is prevented from being damaged when the negative angle is folded when the negative angle is moved leftwards.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The utility model provides a one-step negative angle structure forming die that bends which characterized in that includes:
the upper die mechanism (1) comprises an upper die base (11) and an upper stripper plate (12), the upper stripper plate (12) is elastically connected to the upper die base (11), a right-angle forming assembly (3) and a negative-angle forming assembly (4) are further arranged at the bottom of the upper die base (11), and the right-angle forming assembly (3) and the negative-angle forming assembly (4) are symmetrically arranged on two sides of the upper stripper plate (12);
the lower die mechanism (2) comprises a lower die base (21) and a lower backing plate (22), the lower backing plate (22) is fixedly installed on the lower die base (21), a lower die forming assembly (5) corresponding to the upper stripper plate (12) in position is arranged on the lower backing plate (22), a workpiece (9) is placed on the lower die forming assembly (5), a lower ejector rod (6) is arranged below the lower die forming assembly (5), the lower ejector rod (6) is elastically connected to the lower die base (21), a wedge slotting tool (7) is further arranged on one side of the lower die forming assembly (5), and the wedge slotting tool (7) is fixedly installed on the lower backing plate (22);
the lower die forming assembly (5) comprises a lower forming seat (51) and a lower die forming male slider (52), the lower forming seat (51) is fixedly mounted on the lower base plate (22), a right-angle forming surface is arranged on one side of the lower forming seat (51), the lower die forming male slider (52) is connected to the lower forming seat (51) in a sliding mode, the contact surface of the lower die forming male slider (52) and the lower forming seat (51) is an inclined surface, and the lower ejector rod (6) abuts against the bottom of the lower die forming male slider (52);
the bottom of the lower die forming male sliding block (52) is provided with a sliding groove (521), and the top of the lower ejector rod (6) is connected in the sliding groove (521) in a sliding mode.
2. The one-step negative angle structure bending forming die according to claim 1, wherein the upper die mechanism (1) further comprises an upper pad (13), an upper locking plate (14) and an upper knockout plate (15), the upper die base (11) is fixedly mounted on the upper pad (13), the upper pad (13) is fixedly mounted on the upper locking plate (14), the upper knockout plate (15) is elastically connected to the upper locking plate (14) through a high-strength rubber (8), an upper ejector rod (151) is further arranged on the upper knockout plate (15), the upper ejector rod (151) penetrates through the upper die base (11), and the upper knockout plate (12) is fixedly mounted on the upper ejector rod (151).
3. The one-step negative angle structure bending forming die according to claim 1 or 2, wherein the right angle forming assembly (3) comprises a first stop block (31) and a bending splicing strip (32), the first stop block (31) is fixedly installed on the upper die base (11), and the bending splicing strip (32) is fixedly installed on the first stop block (31).
4. The one-step negative angle structure bending forming die according to claim 1 or 2, wherein the negative angle forming assembly (4) comprises a second stop block (41), a sliding seat (42), a connecting block (43), a wedge swinging block (44) and a stop screw (45), the second stop block (41) is fixedly installed on the upper die seat (11), the sliding seat (42) is arranged on one side of the second stop block (41), the connecting block (43) is slidably connected on the sliding seat (42), the wedge swinging block (44) is fixedly installed on the connecting block (43), one side of the wedge swinging block (44) is provided with an upper negative angle forming surface (441), the other opposite side is provided with a first inclined surface (442), the stop screw (45) penetrates through the second stop block (41) and is fixedly installed on the wedge swinging block (44), a spring is sleeved on the stop screw (45), and the stop screw (45) is elastically connected on the second stop block (41) through the spring.
5. The mold for forming and bending a one-step negative angle structure according to claim 4, wherein the upper negative angle forming surface (441) is in arc transition with the bottom surface of the wedge pendulum block (44).
6. The one-step negative angle structure bending forming die according to claim 4, wherein a cutter rest block (46) is further arranged on the second stop block (41), and the position of the cutter rest block (46) corresponds to the wedge slotting cutter (7).
7. The one-step negative angle structure bending forming die according to claim 1, wherein the lower die mechanism (2) further comprises a lower pad (23) and a lower supporting plate (24), the lower pad (23) is fixedly installed on the lower supporting plate (24), and the lower die holder (21) is fixedly installed on the lower pad (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110317011.2A CN113118307B (en) | 2021-03-24 | 2021-03-24 | One-step negative angle structure bending forming die |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110317011.2A CN113118307B (en) | 2021-03-24 | 2021-03-24 | One-step negative angle structure bending forming die |
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| CN113118307A CN113118307A (en) | 2021-07-16 |
| CN113118307B true CN113118307B (en) | 2023-03-21 |
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| CN202110317011.2A Active CN113118307B (en) | 2021-03-24 | 2021-03-24 | One-step negative angle structure bending forming die |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114226521A (en) * | 2021-12-14 | 2022-03-25 | 上海龙旗科技股份有限公司 | Device and method for machining right-angle structure of battery cover of electronic equipment |
| CN115055586B (en) * | 2022-04-11 | 2025-05-30 | 贵州振华华联电子有限公司 | A forming die for multiple bending parts |
| CN116766565B (en) * | 2023-06-26 | 2025-01-17 | 昆山六淳智能科技有限公司 | Disposable negative angle folding device for PET |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES8305606A1 (en) * | 1980-12-29 | 1983-04-16 | Ford Motor Co | Method of reducing curling in pressed sheet materials. |
| CN102335694B (en) * | 2011-11-10 | 2013-06-12 | 珀尔曼机电(昆山)有限公司 | Bending molding structure for stamping mould |
| ITMI20120751A1 (en) * | 2012-05-04 | 2013-11-05 | Salvagnini Italia Spa | APPARATUS AND METHOD FOR MEASURING THE FOLDING ANGLE OF A SHEET. |
| CN104056964A (en) * | 2014-05-28 | 2014-09-24 | 合肥金海康五金机械制造有限公司 | Stamping progressive die swinging block rotary circling negative angle springback prevention forming structure |
| CN205309114U (en) * | 2016-01-17 | 2016-06-15 | 亿和精密金属制品(深圳)有限公司 | Negative angle mould is rolled over to one step of formula |
| CN208592305U (en) * | 2018-06-29 | 2019-03-12 | 美德乐五金电子(深圳)有限公司 | A kind of buoyant structure |
| CN111468573B (en) * | 2020-05-22 | 2024-09-17 | 莱克福斯弹簧科技(常州)有限公司 | Small-spacing double-side swing type resetting bending structure |
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