CN219541450U - Blanking die for cutting thick materials - Google Patents
Blanking die for cutting thick materials Download PDFInfo
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- CN219541450U CN219541450U CN202320364360.4U CN202320364360U CN219541450U CN 219541450 U CN219541450 U CN 219541450U CN 202320364360 U CN202320364360 U CN 202320364360U CN 219541450 U CN219541450 U CN 219541450U
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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
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Punching Or Piercing (AREA)
Abstract
The utility model provides a blanking die for cutting thick materials, which comprises a blanking upper die and a blanking lower die, wherein the blanking upper die is provided with a blanking male die, and the blanking lower die is provided with a blanking female die at a position corresponding to the blanking male die; and a cutting bevel is formed at the cutting edge of the blanking male die. The utility model has the advantages that: the cutting bevel is formed at the cutting edge of the blanking male die, so that the situation that a thread-pulling cutter grain is not left at the section of a product can be ensured, and the full brightness of the section of the product can be ensured; and the broken part can be ensured to be more thorough when finally torn, and the problem of burrs can not occur, so that the quality of the product is effectively improved.
Description
[ field of technology ]
The utility model relates to the technical field of blanking dies, in particular to a blanking die for cutting thick materials.
[ background Art ]
A blanking die is a device for processing a material into a part or a semi-finished product, such as various metal electronic components, and most of them are required to be used. The electronic product has extremely high precision requirement, so that the punched section is required to be fully bright and not to have burrs for thick materials, for example, the assembly part of the armature and the early-warning iron in the relay needs to be fully and tightly attached, and the hardware assembly position is required to be fully bright and not to have burrs for design; however, the blanking full brightness and burrs are mutually present in the metal stamping part, i.e. the larger the bright surface is, the higher the risk of burrs being generated.
At present, for blanking of thick materials, pre-cutting and then fine cutting are generally adopted for the thick materials so as to reduce blanking force and further reduce fracture layers at the last cutting position. The fine cutting is a key for ensuring the quality of the product, as shown in fig. 1 and 2, a conventional blanking die 100 'for fine cutting of a thick material 200' includes an upper blanking die 1 'and a lower blanking die 2', wherein the upper blanking die 1 'is provided with a male blanking die 3', and the lower blanking die 2 'is provided with a female blanking die at a position corresponding to the male blanking die 3'. However, after the blanking male die 3 'of the existing blanking die 100' is used for a period of time, the knife edge of the blanking male die 3 'is slightly worn, burrs can be immediately generated at the product fracture position, and the blanking male die 3' needs to be replaced when 2-3 ten thousand dies are produced, so that the service life is low; meanwhile, the grinding lines on the blanking male die 3' also easily leave the thread-pulling knife lines on the section of the product, so that the full brightness of the section of the product is difficult to ensure. In view of the above problems, the present inventors have conducted intensive studies on the problems, and have produced the present utility model.
[ utility model ]
The utility model aims to solve the technical problems of low service life and easiness in leaving a thread-pulling cutter grain at the section of a product, and provides a blanking die for cutting thick materials, which solves the problems that the existing blanking die is easy to cause burrs of the product due to abrasion of a cutter edge after being used for a period of time.
The utility model is realized in the following way: the blanking die for cutting the thick material comprises a blanking upper die and a blanking lower die, wherein the blanking upper die is provided with a blanking male die, and the blanking lower die is provided with a blanking female die at a position corresponding to the blanking male die; and a cutting bevel is formed at the cutting edge of the blanking male die.
Further, the inclination angle of the cutting bevel is 60-70 degrees.
Further, the inclination angle of the cutting bevel is 65 degrees.
Further, the cutting bevel has a width greater than 0mm and less than 0.5mm.
Further, the width of the cutting bevel is 0.2mm.
Further, an extending part is arranged at the bottom of the blanking male die in a downward extending mode on one side far away from the cutting edge, and a cavity for receiving the extending part is formed in the blanking female die at a position corresponding to the extending part.
Furthermore, the two sides of the middle upper part of the blanking male die are provided with assembling clamping grooves, and the blanking male die is detachably assembled with the blanking upper die through the assembling clamping grooves.
Further, the blanking upper die comprises an upper die seat, an upper base plate, a fixed plate, a stop plate and an upper stripper plate; the upper die holder, the upper base plate and the fixed plate are connected together from bottom to top to form a first main body, and the stop plate and the upper release plate are connected together from bottom to top to form a second main body; the first main body is connected with the second main body through a spring assembly; the upper stripper plate, the stop plate and the fixing plate are formed with an assembly space from bottom to top, and the blanking male die is arranged in the assembly space.
Further, the blanking lower die comprises a lower die seat, a lower base plate and a concave die plate which are connected together through a lower-to-upper locking pair; the blanking die is fixed in the die plate.
By adopting the technical scheme of the utility model, the utility model has at least the following beneficial effects: the cutting bevel is formed at the cutting edge of the blanking male die, so that the situation that a thread-pulling cutter grain is not left at the section of a product can be ensured, and the full brightness of the section of the product can be ensured; the method can ensure that the breakage is more thorough when the product is torn off finally, and the problem of burrs can not occur, so that the quality of the product is effectively improved; meanwhile, the design of the cutting bevel angle can also improve the service life of the blanking male die, so that the production cost is reduced.
[ description of the drawings ]
The utility model will be further described with reference to examples of embodiments with reference to the accompanying drawings.
Fig. 1 is a structural view of a conventional blanking die;
FIG. 2 is an enlarged view of the portion A of FIG. 1;
FIG. 3 is an overall construction view of the blanking die of the present utility model;
fig. 4 is an enlarged partial view of the cutting bevel at the cutting edge of the blanking punch of the present utility model;
fig. 5 is a side view of the blanking punch of the present utility model;
fig. 6 is a front view of the blanking punch of the present utility model;
fig. 7 is a top view of the blanking punch of the present utility model;
fig. 8 is a block diagram of a cutting die according to the present utility model.
Reference numerals illustrate:
100' -blanking die, 200' -thick material, 1' -blanking upper die, 2' -blanking lower die and 3' -blanking male die;
100-blanking die, 1-blanking upper die, 11-upper die holder, 12-upper base plate, 13-fixed plate, 14-stop plate, 15-upper stripper plate, 2-blanking lower die, 21-lower die holder, 22-lower base plate, 23-concave die plate, 3-blanking male die, 31-extension part, 32-assembly clamping groove, 33-working surface, 4-blanking female die, 41-die cavity and 5-cutting bevel angle.
[ detailed description ] of the utility model
In order to better understand the technical scheme of the present utility model, the following detailed description will refer to the accompanying drawings and specific embodiments.
It should be noted herein that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. refer to an orientation or positional relationship based on that shown in the drawings, merely for convenience in describing these embodiments and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operate in a specific orientation. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature.
Example 1
Referring to fig. 3 to 8, in a preferred embodiment of a blanking die 100 for cutting thick materials, the blanking die 100 includes a blanking upper die 1 and a blanking lower die 2, wherein the blanking upper die 1 can move towards the direction of the blanking lower die 2 or move away from the blanking lower die 2 under the driving of a driving mechanism (not shown), so as to realize a blanking function; the driving mechanism is a mechanism which needs to be arranged in the existing stamping die, the specific structure of the driving mechanism is well known to those skilled in the art, and the driving mechanism is not described in detail herein.
A blanking male die 3 is arranged on the blanking upper die 1, and a blanking female die 4 is arranged on the blanking lower die 2 at a position corresponding to the blanking male die 3 so as to realize blanking of the metal material by matching of the blanking male die 3 and the blanking female die 4; a cutting bevel 5 is formed at the cutting edge of the blanking male die 3.
The overall working principle of the blanking die 100 of the present utility model is as follows:
after the metal material to be blanked is placed on the blanking die 4, when the blanking upper die 1 descends to drive the blanking punch 3 to move downwards, a low point (i.e. a point b in fig. 4) on a cutting bevel 5 of the blanking punch 3 is firstly contacted with the metal material, a certain included angle is formed between the point b on the cutting bevel 5 of the blanking punch 3 and the blanking die 4, and at the moment, the blanking punch 3 does not start to perform specific slitting operation on the metal material, but extrudes scraps on the edge of the metal material in a narrow space of the included angle. The blanking upper die 1 drives the blanking male die 3 to continuously move downwards, when a high point (namely a point a in fig. 4) on a cutting bevel 5 of the blanking male die 3 is in contact with a metal material, the blanking male die 3 starts to cut the metal material, meanwhile, due to the existence of an included angle, the resistance of the blanking male die 3 in the descending process is increased, so that waste in the included angle is frustrated, and due to mutual frustrated extrusion among raw materials, a thread-pulling cutter grain is not left at the section of a product in the cutting process, and the full brightness of the section of the product can be ensured. After the blanking male die 3 continues to move downwards and extrudes the waste material into the formed included angle to a certain extent, the point a on the cutting bevel 5 of the blanking male die 3 and the blanking female die 4 need to be torn off finally, and the waste material in the included angle is hardened just by the extrusion effect of the blanking male die 3, so that the waste material can be broken more thoroughly finally, and the problem of burrs cannot occur. Therefore, the blanking die 100 of the present utility model can satisfactorily achieve fine cutting of a thick material and ensure the quality of a cross section at a cut-off portion.
From the above, the cutting bevel 5 is formed at the cutting edge of the blanking male die 3, so that the cutting edge can ensure that the thread-pulling cutter grains are not left at the section of the product, and the full brightness of the section of the product can be ensured; the method can ensure that the breakage is more thorough when the product is torn off finally, and the problem of burrs can not occur, so that the quality of the product is effectively improved; meanwhile, the design of the cutting bevel 5 can also improve the service life of the blanking male die 3, so that the production cost is reduced.
In the preferred embodiment of the utility model, in order to better realize cutting of the metal material and ensure that the cut section is full bright and no burrs appear, the inclined angle of the cutting bevel 5 is designed to be 60-70 degrees, namely, the inclined angle between the inclined plane of the cutting bevel 5 and the horizontal direction is 60-70 degrees.
As a preferred embodiment of the present utility model, the inclination angle of the cutting bevel 5 is 65 °.
In the preferred embodiment of the present utility model, in order to ensure the cutting effect, the width of the cutting bevel 5 is greater than 0mm and less than 0.5mm, and the width of the cutting bevel 5 refers to the horizontal distance between the points a and b in the figure.
As a preferred embodiment of the present utility model, the cutting bevel 5 has a width of 0.2mm.
In the preferred embodiment of the present utility model, please refer to fig. 5-7, the bottom of the punching punch 3 is provided with an extension 31 extending downward at a side far from the cutting edge, the punching die 4 is provided with a cavity 41 for receiving the extension 31 at a position corresponding to the extension 31, and the extension 31 can be inserted into the cavity 41 during the process of cutting the metal material by the punching punch 3. Meanwhile, in order to avoid the extending part 31 from scratching the die or the product, the corner positions at the bottom of the extending part 31 are designed as round corners, the positions between the upper end of the extending part 31 and the cutting edge are also designed as round corners, and the radius of the circular arc of the round corners is 1mm; the height of the extension part 31 is 4.50mm, namely the distance between the bottom surface of the extension part 31 and the point b on the cutting bevel 5; the width of the extension 31 is 7.00mm, i.e. the distance between the left side wall surface and the right side wall surface of the extension 31 in fig. 5.
In the preferred embodiment of the present utility model, the working surface 33 is machined by a photo bending method on the upper position of the cutting bevel 5 of the punching male die 3, and a plating (not shown) is plated on the working surface 33. Because the working surface 33 of the blanking punch 3 contacts with the blanking section of the metal material in the descending process, the working surface 33 is processed above the cutting bevel 5 in a photobending grinding mode, and a plating layer is electroplated on the working surface 33, so that the situation that the grinding grains of the blanking punch 3 leave the cutting grains on the blanking section of the product can be effectively avoided. The overall height of the punching punch 3 is 69.5mm and the height of the working face 33 is 25.0mm.
In the preferred embodiment of the present utility model, the two sides of the middle upper part of the punching male die 3 are formed with the assembly clamping grooves 32, and the punching male die 3 is detachably assembled with the punching upper die 1 through the assembly clamping grooves 32. In a specific implementation, an assembly fixture block (not shown) matched with the assembly fixture groove 32 is arranged in the upper blanking die 1, and the blanking male die 3 is mounted on the upper blanking die 1 through the cooperation of the assembly fixture block and the assembly fixture groove 32, so that the blanking male die 3 can be conveniently detached and replaced.
In the preferred embodiment of the present utility model, the upper blanking die 1 comprises an upper die holder 11, an upper backing plate 12, a fixing plate 13, a stop plate 14 and an upper stripper plate 15; the upper die holder 11, the upper base plate 12 and the fixed plate 13 are connected together from bottom to top to form a first main body, and can be fixed together through a bolt lock; the stop plate 14 and the upper release plate 15 are connected together from bottom to top to form a second main body, and can be fixed together through a bolt lock; the first body and the second body are connected through a spring assembly (not shown); the upper stripper plate 15, the stop plate 14 and the fixing plate 13 form an assembly space from bottom to top, and the blanking punch 3 is installed in the assembly space. The spring assembly is a mechanism which needs to be arranged in the existing blanking die, the specific structure of the spring assembly is well known to the person skilled in the art, and the spring assembly is not described in detail here.
In the preferred embodiment of the present utility model, the lower blanking die 2 comprises a lower die holder 21, a lower backing plate 22 and a die plate 23 which are connected together by a bottom-to-top lock; the cutting die 4 is fixed in a die plate 23. When the metal cutting device works, in the process that the upper blanking die 1 drives the lower blanking die 3 to move downwards, the lower blanking die 4 on the lower blanking die 2 can be matched with the lower blanking die 3 to cut off the metal material.
While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that the specific embodiments described are illustrative only and not intended to limit the scope of the utility model, and that equivalent modifications and variations of the utility model in light of the spirit of the utility model will be covered by the claims of the present utility model.
Claims (9)
1. The blanking die for cutting the thick material comprises a blanking upper die and a blanking lower die, wherein the blanking upper die is provided with a blanking male die, and the blanking lower die is provided with a blanking female die at a position corresponding to the blanking male die; the method is characterized in that: and a cutting bevel is formed at the cutting edge of the blanking male die.
2. A blanking die for cutting thick stock as set forth in claim 1, wherein: the inclination angle of the cutting bevel is 60-70 degrees.
3. A blanking die for cutting thick stock as set forth in claim 2, wherein: the inclination angle of the cutting bevel is 65 degrees.
4. A blanking die for cutting thick stock as set forth in claim 1, wherein: the cutting bevel has a width greater than 0mm and less than 0.5mm.
5. A blanking die for cutting thick stock as set forth in claim 1, wherein: the width of the cutting bevel is 0.2mm.
6. A blanking die for cutting thick stock as set forth in claim 1, wherein: the bottom of the blanking male die is provided with an extension part in a downward extending mode at one side far away from the cutting edge, and a cavity for receiving the extension part is formed in the position, corresponding to the extension part, of the blanking female die.
7. A blanking die for cutting thick stock as set forth in claim 1, wherein: the two sides of the middle upper part of the blanking male die are provided with assembling clamping grooves, and the blanking male die is detachably assembled with the blanking upper die through the assembling clamping grooves.
8. A blanking die for cutting thick stock as set forth in claim 1, wherein: the blanking upper die comprises an upper die seat, an upper base plate, a fixed plate, a stop plate and an upper stripper plate; the upper die holder, the upper base plate and the fixed plate are connected together from bottom to top to form a first main body, and the stop plate and the upper release plate are connected together from bottom to top to form a second main body; the first main body is connected with the second main body through a spring assembly; the upper stripper plate, the stop plate and the fixing plate are formed with an assembly space from bottom to top, and the blanking male die is arranged in the assembly space.
9. A blanking die for cutting thick stock as set forth in claim 1, wherein: the blanking lower die comprises a lower die seat, a lower base plate and a concave die plate which are connected together through a lower-to-upper locking pair; the blanking die is fixed in the die plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320364360.4U CN219541450U (en) | 2023-03-02 | 2023-03-02 | Blanking die for cutting thick materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320364360.4U CN219541450U (en) | 2023-03-02 | 2023-03-02 | Blanking die for cutting thick materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219541450U true CN219541450U (en) | 2023-08-18 |
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ID=87700648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320364360.4U Active CN219541450U (en) | 2023-03-02 | 2023-03-02 | Blanking die for cutting thick materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219541450U (en) |
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2023
- 2023-03-02 CN CN202320364360.4U patent/CN219541450U/en active Active
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