CN220196121U - Integral type prevents that fracture is taken out bud hole flanging drift and is taken out bud hole flanging device - Google Patents
Integral type prevents that fracture is taken out bud hole flanging drift and is taken out bud hole flanging device Download PDFInfo
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- CN220196121U CN220196121U CN202321524550.4U CN202321524550U CN220196121U CN 220196121 U CN220196121 U CN 220196121U CN 202321524550 U CN202321524550 U CN 202321524550U CN 220196121 U CN220196121 U CN 220196121U
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- Prior art keywords
- hole flanging
- hole
- flanging
- straight body
- bud
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- 230000007704 transition Effects 0.000 claims abstract description 25
- 239000007769 metal material Substances 0.000 claims abstract description 14
- 238000005336 cracking Methods 0.000 claims description 20
- 239000002184 metal Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 238000005282 brightening Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
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- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The utility model discloses an integrated cracking-proof bud-flanging punch and a bud-flanging device. The punch comprises a hanging table, a clamping rod, a hole flanging part, a hole flanging transition step, an interference straight body part and a conical guide part; the upper end of the clamping rod is connected with the hanging table, and the lower end of the clamping rod is connected with the upper end of the hole flanging part; the lower end of the hole flanging is connected with the upper end of the hole flanging transition step, the lower end of the hole flanging transition step is connected with the upper end of the interference straight body, and the lower end of the interference straight body is connected with the conical guide part; the height of the interference straight body part is the thickness T+0.2mm of the metal material, and the diameter of the interference straight body part is the diameter +0.04-0.1mm of the pre-punched hole on the metal material; the diameter of the hole flanging part is larger than that of the interference straight body part; the diameter of the hole flanging part is the diameter of the sprouting hole flanging. The utility model solves the technical problems that the prior punch is adopted, because the tearing belt and burrs exist on the pre-punched cutting surface, the perimeter of the tearing section is enlarged by the punch after hole flanging, and the tearing belt and the burrs are easy to crack, and the tearing belt and the burrs can be prevented from becoming cracks after the hole flanging is carried out.
Description
Technical Field
The utility model relates to a stamping die, in particular to an integral anti-cracking bud-flanging punch and a bud-flanging device.
Background
As shown in fig. 1, this is a metal material with pre-punched holes, and it is necessary to perform bud-punching and hole-flanging on the metal material to form a stamping part as shown in fig. 2, that is, the pre-punched holes (small holes) on the original metal material are extruded and expanded, and the extra volume of material is extruded and extruded to be higher than the flatness of the material, so that the product tapping or assembling and riveting functions are realized. The structure of the punch head for the existing sprouting and hole flanging operation is shown in fig. 3, and the punch head is adopted, because the tearing belt and burrs exist on the pre-punched cutting surface, the perimeter of the tearing section after hole flanging is enlarged by the punch head, and the punch head is easy to crack, so that the product quality is affected.
Disclosure of Invention
The utility model aims to provide an integrated anti-cracking sprouting hole flanging punch and a sprouting hole flanging device, which solve the technical problems that the circumference of a tearing section is enlarged by the punch after hole flanging and easy to crack because the tearing belt and burrs exist on a pre-punched cutting surface by adopting the existing punch, and can avoid the tearing belt and burrs from becoming cracks after sprouting hole flanging.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
integral type prevents that fracture shoots and turns over hole drift, its characterized in that: the device comprises a hanging table, a clamping rod, a hole flanging part, a hole flanging transition step, an interference straight body part and a conical guide part;
the upper end of the clamping rod is connected with the hanging table, and the lower end of the clamping rod is connected with the upper end of the hole flanging part;
the lower end of the hole flanging part is connected with the upper end of the hole flanging transition step, the lower end of the hole flanging transition step is connected with the upper end of the interference straight body part, and the lower end of the interference straight body part is connected with the conical guide part;
the height of the interference straight body part is the thickness T+0.2mm of the metal material, and the diameter of the interference straight body part is +0.04-0.1mm of the pre-punched hole on the metal material;
the diameter of the hole flanging part is larger than that of the interference straight body part, and the hole flanging transition step is an arc transition part positioned between the lower end of the hole flanging part and the upper end of the interference straight body part;
the diameter of the hole flanging part is the diameter of the sprouting hole flanging.
The integral type prevent ftracture and shoot hole flanging drift, its characterized in that: the height of the tapered guide is twice the thickness T of the metal piece.
The integral type prevent ftracture and shoot hole flanging drift, its characterized in that: the hole flanging transition step is an arc transition part of R1.0mm.
The integral type prevent ftracture and shoot hole flanging drift, its characterized in that: the lower end of the tapered guide portion adopts an arc portion of R5.0mm.
The utility model provides a device is bored in sprouting, it includes upper mould part and lower mould part, its characterized in that:
the upper die part comprises an upper die seat, an upper base plate, an upper clamping plate, a stripper plate, a spring and the integral anti-cracking bud-drawing hole-flanging punch; the integral anti-cracking bud-drawing hole flanging punch is connected to an upper clamping plate through a hanging table, and the upper clamping plate is fixed at the lower end of an upper die holder through an upper base plate; the lower end of the integral anti-cracking bud-pulling hole flanging punch penetrates out from the lower end of the upper clamping plate and further penetrates through a stripper plate positioned below the upper clamping plate; the spring is arranged between the upper die holder and the stripper plate;
the lower die part comprises a lower die base, a lower base plate and a sprouting female die; the bud picking female die is fixed above the lower die holder through a lower base plate.
Compared with the prior art, the punch provided by the utility model has the interference straight body part, and the interference straight body part has the function of extruding and removing the tear tape and the burrs of the pre-punched cut surface on the metal material part, so that the aim of extruding and brightening the punched cut surface in advance before the sprouting and hole flanging is achieved, and the tear tape and the burrs are prevented from becoming cracks after hole flanging. The punch head provided by the utility model is also provided with a hole flanging transition step, and the function of the punch head is to expand the pre-punched hole from small extrusion, so that the probability that a tearing belt and burrs become cracks after hole flanging is further reduced.
Drawings
Fig. 1 is a schematic structural view of a metal piece with pre-punched holes.
Fig. 2 is a stamping formed from the metal piece of fig. 1 after sprouting and hole flanging.
Fig. 3 is a schematic structural view of a conventional bud-flanging punch.
Fig. 4 is a schematic structural view of an integrated anti-cracking bud-turning punch.
Fig. 5 is a schematic structural view of the sprouting and hole flanging device of the present utility model.
Fig. 6 is a schematic view of the use state of the sprouting and hole flanging device of the present utility model.
Fig. 7 is a second schematic view of the use state of the sprouting and hole flanging device of the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 4, the utility model provides an integral anti-cracking bud-picking hole flanging punch, which is characterized in that: it comprises a hanging table 11, a clamping rod 12, a hole flanging part 13, a hole flanging transition step 14, an interference straight body part 15 and a conical guide part 16.
The hanging table 11 is used for hanging the punch on the upper die part and preventing the punch from being pulled off by the bud pulling force, and the diameter of the hanging table is generally 2-3mm larger than that of the clamping rod 12 (main rod).
The upper end of the clamping rod 12 is connected with the hanging table 11, and the lower end is connected with the upper end of the hole flanging part 13. The function of the clamping rod 12 is to secure the punch in the upper die part, typically using a standard round bar of 6mm diameter.
The lower end of the hole flanging part 13 is connected with the upper end of the hole flanging transition step 14, the lower end of the hole flanging transition step 14 is connected with the upper end of the interference straight body part 15, and the lower end of the interference straight body part 15 is connected with the conical guide part 16. The diameter of the hole flanging portion 13 is typically the diameter of the bud flanging hole, which is used to define the final forming size of the bud flanging hole.
The height of the interference straight body part 15 is the thickness T+0.2mm of the metal material, and the diameter of the interference straight body part 15 is +0.04-0.1mm of the pre-punched hole on the metal material. The interference straight body 15 is used for extruding and removing the tear tape and burrs of the pre-punched cut surface on the metal material.
The diameter of the hole flanging part 13 is larger than that of the interference straight body part 15, and the hole flanging transition step 14 is an arc transition part (such as an arc transition part of R1.0mm) between the lower end of the hole flanging part 13 and the upper end of the interference straight body part 15, and is used for expanding the pre-punched hole from small extrusion.
The diameter of the hole flanging part is the diameter of the sprouting hole flanging.
The height of the tapered guide portion 16 is twice the thickness T of the metal material, and the lower end of the tapered guide portion 16 is a circular arc portion of r5.0mm. The function is to guide in advance during the sprouting and hole flanging operation, so that the punch is convenient to insert into the pre-punched hole.
Referring again to fig. 5-7, a sprouting and hole flanging device of the present utility model comprises an upper die portion and a lower die portion. The upper die part comprises an upper die base 2, an upper base plate 3, an upper clamping plate 4, a stripper plate 5, a spring 6 and the integral anti-cracking, bud-drawing and hole-flanging punch 1; the integral anti-cracking bud-drawing hole flanging punch 1 is connected to an upper clamping plate 4 through a hanging table 11 thereof, and the upper clamping plate 4 is fixed at the lower end of an upper die holder 2 through an upper base plate 3; the lower end of the integral anti-cracking bud-picking hole flanging punch penetrates out from the lower end of the upper clamping plate 4 and further penetrates through a stripper plate 5 positioned below the upper clamping plate 4; the spring 6 is arranged between the upper die holder 2 and the stripper plate 5; the lower die part comprises a lower die base 7, a lower base plate 8 and a sprouting female die 9; the bud picking female die 9 is fixed above the lower die seat 7 through a lower base plate 8.
When the sprouting and hole flanging device is used, as shown in fig. 6, an upper die part descends, a stripper plate 5 starts to press a metal workpiece A, the upper die part carries an integrated anti-cracking sprouting and hole flanging punch 1 to continue to descend, the integrated anti-cracking sprouting and hole flanging punch 1 starts to contact a product, a conical guide part 16 of the integrated anti-cracking sprouting and hole flanging punch 1 firstly enters a pre-punched hole (small hole) in the metal workpiece A, then an interference straight body part 15 enters the side wall of the pre-punched hole (small hole), and a tearing belt and burrs are extruded into a bright belt. As shown in fig. 7, the upper die part continues to descend, and the hole flanging transition step 14 and the hole flanging part 13 on the integral anti-cracking bud-flanging punch 1 sequentially extrude the material to form buds, and the buds are smooth and have no cracks.
Claims (5)
1. Integral type prevents that fracture shoots and turns over hole drift, its characterized in that: the device comprises a hanging table (11), a clamping rod (12), a hole flanging part (13), a hole flanging transition step (14), an interference straight body part (15) and a conical guide part (16);
the upper end of the clamping rod (12) is connected with the hanging table (11), and the lower end is connected with the upper end of the hole flanging part (13);
the lower end of the hole flanging part (13) is connected with the upper end of a hole flanging transition step (14), the lower end of the hole flanging transition step (14) is connected with the upper end of an interference straight body part (15), and the lower end of the interference straight body part (15) is connected with a conical guide part (16);
the height of the interference straight body part (15) is the thickness T+0.2mm of the metal material, and the diameter of the interference straight body part (15) is +0.04-0.1mm of the pre-punched hole on the metal material;
the diameter of the hole flanging part (13) is larger than that of the interference straight body part (15), and the hole flanging transition step (14) is an arc transition part positioned between the lower end of the hole flanging part (13) and the upper end of the interference straight body part (15);
the diameter of the hole flanging part is the diameter of the sprouting hole flanging.
2. The integrated anti-cracking bud-flanging punch as claimed in claim 1, wherein: the height of the conical guide (16) is twice the thickness T of the metal piece.
3. The integrated anti-cracking bud-flanging punch as claimed in claim 1, wherein: the hole flanging transition step (14) is an arc transition part of R1.0mm.
4. The integrated anti-cracking bud-flanging punch as claimed in claim 1, wherein: the lower end of the tapered guide part (16) adopts an arc part of R5.0mm.
5. The utility model provides a device is bored in sprouting, it includes upper mould part and lower mould part, its characterized in that:
the upper die part comprises an upper die seat (2), an upper base plate (3), an upper clamping plate (4), a stripper plate (5), a spring (6) and the integrated anti-cracking, bud-drawing and hole-flanging punch as claimed in claim 1 or 2 or 3 or 4; the integral anti-cracking bud-drawing hole-flanging punch is connected to an upper clamping plate (4) through a hanging table (11), and the upper clamping plate (4) is fixed at the lower end of an upper die holder (2) through an upper base plate (3); the lower end of the integral anti-cracking bud-drawing hole flanging punch penetrates out of the lower end of the upper clamping plate (4) and further penetrates through a stripper plate (5) positioned below the upper clamping plate (4); the spring (6) is arranged between the upper die holder (2) and the stripper plate (5);
the lower die part comprises a lower die seat (7), a lower base plate (8) and a sprouting female die (9); the bud picking female die (9) is fixed above the lower die holder (7) through a lower base plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321524550.4U CN220196121U (en) | 2023-06-15 | 2023-06-15 | Integral type prevents that fracture is taken out bud hole flanging drift and is taken out bud hole flanging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321524550.4U CN220196121U (en) | 2023-06-15 | 2023-06-15 | Integral type prevents that fracture is taken out bud hole flanging drift and is taken out bud hole flanging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220196121U true CN220196121U (en) | 2023-12-19 |
Family
ID=89148153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321524550.4U Active CN220196121U (en) | 2023-06-15 | 2023-06-15 | Integral type prevents that fracture is taken out bud hole flanging drift and is taken out bud hole flanging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220196121U (en) |
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2023
- 2023-06-15 CN CN202321524550.4U patent/CN220196121U/en active Active
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