CN110860605A - Upper die assembly and continuous forming die comprising same - Google Patents
Upper die assembly and continuous forming die comprising same Download PDFInfo
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- CN110860605A CN110860605A CN201911172761.4A CN201911172761A CN110860605A CN 110860605 A CN110860605 A CN 110860605A CN 201911172761 A CN201911172761 A CN 201911172761A CN 110860605 A CN110860605 A CN 110860605A
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- Prior art keywords
- die
- bending
- forming
- plate
- elastic piece
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- 238000005452 bending Methods 0.000 claims abstract description 77
- 239000000463 material Substances 0.000 claims abstract description 47
- 238000010008 shearing Methods 0.000 claims abstract description 13
- 238000003825 pressing Methods 0.000 claims description 31
- 238000000034 method Methods 0.000 claims description 6
- 230000005489 elastic deformation Effects 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 2
- 230000002159 abnormal effect Effects 0.000 abstract description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 18
- 239000002184 metal Substances 0.000 description 11
- 229910052757 nitrogen Inorganic materials 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 7
- 230000000750 progressive effect Effects 0.000 description 6
- 238000007667 floating Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000007723 die pressing method Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000007493 shaping process Methods 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/08—Dies with different parts for several steps in a process
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention provides an upper die assembly and a continuous forming die comprising the same, relates to the technical field of forming equipment, and solves the technical problems of abnormal forming sound and unstable forming of the upper die assembly. The upper die assembly comprises an upper die base, an upper clamping plate, an upper stop baffle, an upper stripper plate, a first elastic piece and a bending female die, wherein one end of the first elastic piece is connected with the upper stop baffle, and the other end of the first elastic piece penetrates through the upper clamping plate and then is connected with the upper die base; the top of the bending female die sequentially penetrates through the upper stripper plate and the upper stop baffle and then is connected with the upper clamping plate; when the upper stripper plate is contacted and pressed with the material, the upper stop baffle and the upper stripper plate can lift in the vertical direction relative to the upper clamping plate through the first elastic piece, and the bending female die keeps still to continuously perform die forming on the material; the continuous forming die comprises an upper die assembly and a lower die assembly. The invention changes the fixing mode of the bending female die and the bearing position of the forming force, and solves the problem of unstable forming of the upward bending continuous shearing band bend in the last step of the continuous die.
Description
Technical Field
The invention relates to the technical field of forming equipment, in particular to an upper die assembly and a continuous forming die comprising the same.
Background
As shown in fig. 1 and fig. 2, the continuous metal plate forming mold comprises an upper mold assembly and a lower mold assembly, for some final steps, products which are bent upwards and are connected with a shear band are formed, the forming force borne by an upper stripper plate is large, and the forming position is close to the back, the stress of the upper mold base stress inclined mold is easy to be unbalanced, in order to ensure that the upper stripper plate is balanced, a large number of nitrogen springs are usually added for the final step to balance the forming force, namely, the upper stripper plate in the upper mold assembly is connected with the upper mold base through the nitrogen springs, or the upper stripper plate is connected with an upper base plate above the upper mold base through the nitrogen springs, the upper stripper plate is fixed on the upper mold base, the tail end of the nitrogen springs penetrates through the upper stripper plate to be connected with the upper mold base, the upper stripper plate is fixed on.
In practical situations, however, the problem of unbalanced stress of the upper stripping plate can be solved by adding a large number of nitrogen springs, but the forming force is still on the upper stripping plate, so that the problem that the stress of the upper stripping plate is unbalanced, the upper die is unstable in forming and has great abnormal sound in forming can exist, and the problems can affect the production yield of the progressive die and the problems of die cost, maintenance and preservation.
Disclosure of Invention
The invention aims to provide an upper die assembly and a continuous forming die comprising the same, and aims to solve the technical problems of abnormal forming sound and unstable forming of the upper die assembly in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides an upper die assembly which comprises an upper die base, an upper clamping plate, an upper stop baffle, an upper stripping plate, a first elastic part and a bending female die, wherein the upper clamping plate is arranged on the upper die base; one end of the first elastic piece is connected with the upper stop baffle, and the other end of the first elastic piece penetrates through the upper clamping plate and then is connected with the upper die base; the top of the bending female die penetrates through the upper stripper plate and the upper stop baffle in sequence and then is connected with the upper clamping plate; when the upper stripper plate is in contact with and pressed by a material, the upper stop baffle and the upper stripper plate can lift in the vertical direction relative to the upper clamping plate through the first elastic piece, and the bending female die keeps still and continuously carries out die forming on the material.
On the basis of the technical scheme, the invention can be further improved as follows.
As a further improvement of the present invention, the first elastic member is a first spring.
As a further improvement of the invention, the number of the bending female dies is at least one, and all the bending female dies are uniformly or non-uniformly arranged.
The invention provides a continuous forming die which comprises an upper die assembly and a lower die assembly arranged corresponding to the upper die assembly.
As a further improvement of the invention, the lower die assembly comprises a lower die base, a lower backing plate, a lower die plate, a second elastic element, a bending punch and a material pressing block, wherein a groove for accommodating the material pressing block and the bending punch is formed in the lower die plate, and the bending punch is positioned outside the material pressing block and used for forming a bending shear band region among the material pressing block, the bending female die and the bending punch; one end of the second elastic piece is fixedly connected with the material pressing block, the other end of the second elastic piece penetrates through the lower base plate and then is fixedly connected with the lower die holder, when the bending female die moves downwards and abuts against the material pressing block, the material pressing block can move relative to the bending punch in the vertical direction through the second elastic piece, and therefore continuous tape shearing and bending forming processes are conducted on materials.
As a further improvement of the present invention, the second elastic member is a second spring.
As a further improvement of the invention, the depth of the groove is the same as the height of the bending punch; when the swaging block is not pressed, the top of the swaging block is flush with the top of the bending punch.
As a further improvement of the invention, the lower die assembly further comprises an equal-height sleeve, and the equal-height sleeve is arranged between the material pressing block and the lower die base and used for limiting the floating height of the material pressing block.
As a further improvement of the invention, the elastic deformation amount of the second spring is not less than the material bending height.
As a further improvement of the present invention, the first spring and the second spring are both mechanical springs.
Compared with the prior art, the invention has the following beneficial effects:
according to the upper die assembly, on the basis that the continuous shearing strip is bent upwards in the last step of the traditional sheet metal progressive die, the fixing mode of the bending female die and the bearing position of the forming force are changed, so that the forming bearing force of the upper stripper plate is transferred to the upper clamping plate to bear, and by changing the stress main body of the forming bearing force, the problem of unstable forming of the continuous shearing strip bent upwards in the last step of the progressive die is solved, the production qualified rate is improved, and the die cost is reduced; the bearing force stress main body is changed, so that the upward bending continuous shearing strip in the production of the metal plate continuous die is stably bent and formed, a nitrogen spring is not required to be added, the cost of the metal plate die is reduced, and the stability efficiency of the die is improved; according to the continuous forming die provided by the invention, the lower die pressing block and the knife edge are as flat as each other, so that the cutting is realized firstly, the punch is continuously downward, the upward bending is realized, and the problem of unstable bending and forming of the continuous shearing strip which is bent upward by one step in the production of the metal plate continuous die is solved by improving the stress mode of the bending punch.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a mold opening state structure of a continuous forming mold in the prior art;
FIG. 2 is a schematic view of a closed state structure of a continuous forming mold in the prior art;
FIG. 3 is a schematic view of the mold opening state of the continuous forming mold according to the present invention;
FIG. 4 is a schematic structural view of the continuous forming mold in a closed state according to the present invention.
In the figure 1, an upper die base; 2. an upper splint; 3. an upper stop baffle; 4. an upper stripping plate; 5. a lower template; 6. a lower base plate; 7. a lower die holder; 8. a nitrogen spring; 9. bending the female die; 10. pressing blocks; 11. bending the punch; 12. a second spring; 13. a first spring; 14. a sleeve with equal height.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
As shown in fig. 3, the invention provides an upper die assembly, which comprises an upper die holder 1, an upper clamping plate 2, an upper stop baffle 3, an upper stripper plate 4, a first elastic part and a bending female die 9, wherein the upper clamping plate 2 is arranged on the upper die holder 1, and the upper stripper plate 4 is arranged on the upper stop plate 3; one end of the first elastic piece is connected with the upper stop baffle 3, and the other end of the first elastic piece penetrates through the upper clamping plate 2 and then is connected with the upper die base 1; the top of the bending female die 9 sequentially penetrates through the upper stripper plate 4 and the upper stop baffle 3 and then is connected with the upper clamping plate 2; because the die 9 of bending prolongs to the position with punch holder 2 fixed connection, because punch holder 2 can not remove at the mould closing in-process, so die 9 of bending also can not remove at the shaping in-process, when last stripper plate 4 and material contact pressurized, through first elastic component, go up end baffle 3 and last stripper plate 4 can go up and down in vertical direction for punch holder 2, and die 9 of bending keeps motionless continuously to carry out the compression molding to the material.
Further, the first elastic member is a first spring 13.
Further, the number of the bending female dies 9 is at least one, and all the bending female dies 9 are uniformly or non-uniformly arranged. Fig. 3 and 4 are views schematically showing the structure of the continuous molding die in the case where only one bending die 9 is provided.
As shown in fig. 4, the continuous forming mold provided by the present invention includes an upper mold assembly and a lower mold assembly disposed corresponding to the upper mold assembly.
The lower die assembly comprises a lower die base 7, a lower backing plate 6, a lower die plate 5, a second elastic part, a bending punch 11 and a material pressing block 10, wherein a groove which extends along the vertical lifting direction of the material pressing block 10 and has an upward opening is formed in the lower die plate 5, the groove can at least accommodate the whole material pressing block 10, the bending punch 11, a part of a second spring 12 and an equal-height sleeve 14, and the bending punch 11 is located on the outer side of the material pressing block 10 and is used for forming a bending shear band region among the material pressing block 10, the bending female die 9 and the bending punch 11; one end of a second elastic piece is fixedly connected with the material pressing block 10, the other end of the second elastic piece penetrates through the lower base plate 6 and then is fixedly connected with the lower die holder 7, the bending die 9 moves downwards and abuts against the material pressing block 10, the material pressing block 10 can move relative to the bending punch 11 in the vertical direction through the second elastic piece, the bending die 9 moves downwards along with the material pressing block, the upper stop baffle 3 and the upper stripper plate 4 move upwards after being pressed, and therefore continuous band shearing and bending forming processes are conducted on the material.
Further, the second elastic member is a second spring 12. The second spring 12 can provide a lifting force to the pad 10, and the height sleeve 14 can limit the floating height of the pad 10.
The depth of the groove is the same as the height of the bending punch 11; when the swaging block 10 is not compressed, the top of the swaging block 10 is flush with the top of the bending punch 11.
The lower die assembly further comprises an equal-height sleeve 14, and the equal-height sleeve 14 is arranged between the material pressing block 10 and the lower die base 7 and used for limiting the floating height of the material pressing block 10. The equal-height sleeves 14 are realized by products in the prior art and play a role in distance measurement.
Further, the elastic deformation amount of the second spring 12 is not less than the material bending height.
In the present invention, the first spring 13 and the second spring 12 are both mechanical springs.
According to the upper die assembly, on the basis that the continuous shearing strip is bent upwards in the last step of the traditional sheet metal progressive die, the fixing mode of the bending female die and the bearing position of the forming force are changed, so that the forming bearing force of the upper stripper plate is transferred to the upper clamping plate to bear, and by changing the stress main body of the forming bearing force, the problem of unstable forming of the continuous shearing strip bent upwards in the last step of the progressive die is solved, the production qualified rate is improved, and the die cost is reduced; the bearing force stress main body is changed, so that the upward bending continuous shearing strip in the production of the metal plate continuous die is stably bent and formed, a nitrogen spring is not required to be added, the cost of the metal plate die is reduced, and the stability efficiency of the die is improved; according to the continuous forming die provided by the invention, the lower die pressing block and the knife edge are as flat as each other, so that the cutting is realized firstly, the punch is continuously downward, the upward bending is realized, and the problem of unstable bending and forming of the continuous shearing strip which is bent upward by one step in the production of the metal plate continuous die is solved by improving the stress mode of the bending punch.
The forming process of the continuous forming die comprises the following steps:
as shown in fig. 4, the last step of the sheet metal stamping progressive die is to bend the continuous shearing strip upwards, when the die is opened, the material pressing block 10 is flush with the bending punch 11, the bending female die 9 in the upper die assembly is fixed on the upper clamping plate 2, and the first spring 13 is arranged nearby; with the closing of the die, the bending female die 9 is firstly contacted with the material pressing block 10, the material belt is cut off, the bending female die 9 continues to move downwards until the die is completely closed, the upward bending is realized, the die is opened, and the upward bent product can rise along with the floating of the material pressing block 10, so that the product meeting the requirements is obtained; the upper stop baffle 3 and the upper stripper plate 4 can not be stressed and inclined by changing the fixed position of the bending female die 9, so that the arrangement of a nitrogen spring 8 is cancelled, and a common mechanical spring is used, thereby not only reducing the cost of a sheet metal die, but also improving the stability and efficiency of the die.
It should be noted that "inward" is a direction toward the center of the accommodating space, and "outward" is a direction away from the center of the accommodating space.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in fig. 3 for convenience in describing the present invention and to simplify the description, but are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. An upper die assembly is characterized by comprising an upper die base, an upper clamping plate, an upper stop baffle, an upper stripping plate, a first elastic part and a bending female die, wherein the upper clamping plate is arranged on the upper die base; one end of the first elastic piece is connected with the upper stop baffle, and the other end of the first elastic piece penetrates through the upper clamping plate and then is connected with the upper die base; the top of the bending female die penetrates through the upper stripper plate and the upper stop baffle in sequence and then is connected with the upper clamping plate; when the upper stripper plate is in contact with and pressed by a material, the upper stop baffle and the upper stripper plate can lift in the vertical direction relative to the upper clamping plate through the first elastic piece, and the bending female die keeps still and continuously carries out die forming on the material.
2. The upper die assembly of claim 1, wherein the first resilient member is a first spring.
3. The upper die assembly according to claim 1, wherein the number of the bending dies is at least one, and all the bending dies are uniformly or non-uniformly arranged.
4. A continuous molding die comprising the upper die assembly according to any one of claims 1 to 3 and a lower die assembly provided in correspondence with the upper die assembly.
5. The continuous forming die of claim 4, wherein the lower die assembly comprises a lower die base, a lower backing plate, a lower die plate, a second elastic piece, a bending punch and a material pressing block, a groove for accommodating the material pressing block and the bending punch is formed in the lower die plate, and the bending punch is located on the outer side of the material pressing block and used for forming a bending shear band region among the material pressing block, the bending female die and the bending punch; one end of the second elastic piece is fixedly connected with the material pressing block, the other end of the second elastic piece penetrates through the lower base plate and then is fixedly connected with the lower die holder, when the bending female die moves downwards and abuts against the material pressing block, the material pressing block can move relative to the bending punch in the vertical direction through the second elastic piece, and therefore continuous tape shearing and bending forming processes are conducted on materials.
6. The continuous forming die of claim 5, wherein the second elastic member is a second spring.
7. The continuous forming die of claim 5, wherein the recess depth is the same as the buckle punch height; when the swaging block is not pressed, the top of the swaging block is flush with the top of the bending punch.
8. The continuous forming die of claim 5, wherein the lower die assembly further comprises an equal height sleeve disposed between the swage block and the lower die bed to limit the swage block float height.
9. The continuous forming die of claim 6, wherein the elastic deformation amount of the second spring is not less than the material bending height.
10. The continuous forming die of claim 6, wherein the first spring and the second spring are both mechanical springs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911172761.4A CN110860605A (en) | 2019-11-26 | 2019-11-26 | Upper die assembly and continuous forming die comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911172761.4A CN110860605A (en) | 2019-11-26 | 2019-11-26 | Upper die assembly and continuous forming die comprising same |
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| Publication Number | Publication Date |
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| CN110860605A true CN110860605A (en) | 2020-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911172761.4A Pending CN110860605A (en) | 2019-11-26 | 2019-11-26 | Upper die assembly and continuous forming die comprising same |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009072794A (en) * | 2007-09-18 | 2009-04-09 | Jfe Steel Kk | Method for manufacturing laminated core |
| CN102847795A (en) * | 2012-09-05 | 2013-01-02 | 昆山荣腾模具部品制造有限公司 | Continuous stamping bending die |
| CN205110551U (en) * | 2015-11-18 | 2016-03-30 | 深圳亿和模具制造有限公司 | Modulus of continuity cuts off shaping and takes off material mould |
| CN209550366U (en) * | 2018-11-26 | 2019-10-29 | 珠海格力精密模具有限公司 | Lower die pressing structure, blanking die and blanking machine |
| CN209550386U (en) * | 2019-01-10 | 2019-10-29 | 武汉日晗精密机械有限公司 | A kind of stamping continuous die |
| CN209577874U (en) * | 2018-12-19 | 2019-11-05 | 无锡艾赛特科技有限公司 | A kind of liquid crystal display frame progressive die |
| CN211539189U (en) * | 2019-11-26 | 2020-09-22 | 珠海格力精密模具有限公司 | Upper die assembly and continuous forming die comprising same |
-
2019
- 2019-11-26 CN CN201911172761.4A patent/CN110860605A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009072794A (en) * | 2007-09-18 | 2009-04-09 | Jfe Steel Kk | Method for manufacturing laminated core |
| CN102847795A (en) * | 2012-09-05 | 2013-01-02 | 昆山荣腾模具部品制造有限公司 | Continuous stamping bending die |
| CN205110551U (en) * | 2015-11-18 | 2016-03-30 | 深圳亿和模具制造有限公司 | Modulus of continuity cuts off shaping and takes off material mould |
| CN209550366U (en) * | 2018-11-26 | 2019-10-29 | 珠海格力精密模具有限公司 | Lower die pressing structure, blanking die and blanking machine |
| CN209577874U (en) * | 2018-12-19 | 2019-11-05 | 无锡艾赛特科技有限公司 | A kind of liquid crystal display frame progressive die |
| CN209550386U (en) * | 2019-01-10 | 2019-10-29 | 武汉日晗精密机械有限公司 | A kind of stamping continuous die |
| CN211539189U (en) * | 2019-11-26 | 2020-09-22 | 珠海格力精密模具有限公司 | Upper die assembly and continuous forming die comprising same |
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