CN115647212A - Stretching die - Google Patents
Stretching die Download PDFInfo
- Publication number
- CN115647212A CN115647212A CN202211568605.1A CN202211568605A CN115647212A CN 115647212 A CN115647212 A CN 115647212A CN 202211568605 A CN202211568605 A CN 202211568605A CN 115647212 A CN115647212 A CN 115647212A
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- Prior art keywords
- block
- material sheet
- limiting
- die assembly
- concave
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- 239000000463 material Substances 0.000 claims abstract description 97
- 238000003825 pressing Methods 0.000 claims abstract description 41
- 238000000034 method Methods 0.000 abstract description 7
- 239000002699 waste material Substances 0.000 abstract description 6
- 239000011324 bead Substances 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000009966 trimming Methods 0.000 abstract description 5
- 238000007652 sheet-forming process Methods 0.000 description 3
- 238000007792 addition Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention relates to the technical field of stretching dies, and discloses a stretching die for stretch forming of a material sheet, which comprises the following components: the lower die assembly comprises a concave block and a clamping block, the clamping block is arranged on the concave block in a lifting manner, and a limiting block is arranged on one side of the concave block; the upper die assembly is arranged above the lower die assembly in a lifting manner and comprises a convex block and a pressing block, and the convex block can be inserted into the concave block; the lug can be abutted against the upper end face of the material sheet, and the clamping block can be abutted against the lower end face of the material sheet so as to clamp the material sheet; the pressing block is arranged on one side of the bump in a lifting manner and can be abutted against the limiting block; when the pressing block is abutted to the limiting block, a limiting gap is formed between the pressing block and the concave block, and one side of the feeding piece is inserted into the limiting gap. The invention has the advantages that no draw bead is required to be arranged on the material sheet, the waste of materials can be avoided, the production cost is reduced, meanwhile, when the material sheet is stretched and formed, the subsequent trimming process is not required to be added, and the working efficiency is improved.
Description
Technical Field
The invention relates to the technical field of stretching dies, in particular to a stretching die.
Background
At present, sheet materials such as sheet metal parts are usually subjected to stretch forming, but no matter the sheet materials are integrally stretched or partially stretched, draw beads are usually required to be arranged at the stretching position, and a pressing block of a die presses the draw beads to ensure the stretching quality; however, the method can generate redundant waste materials, and an edge cutting process is required to be added subsequently to cut off the draw beads; on one hand, the material waste is caused, the production cost is increased, on the other hand, the production time is prolonged by the subsequent trimming process, and the working efficiency is reduced.
Disclosure of Invention
The invention has been made in view of the above problems, and an object of the invention is to provide a drawing die which can avoid material waste without providing a draw bead on a material sheet, and at the same time, in the process of drawing and forming the material sheet, the subsequent trimming process is not required to be added, thereby improving the working efficiency.
In order to achieve the above object, the present invention provides a stretching mold for stretch forming of a web, comprising:
the lower die assembly comprises a concave block and a clamping block, the clamping block is arranged on the concave block in a lifting manner, and a limiting block is arranged on one side of the concave block;
the upper die assembly is arranged above the lower die assembly in a lifting manner and comprises a convex block and a material pressing block, and the convex block can be inserted into the concave block; the lug can be abutted against the upper end face of the material sheet, and the clamping block can be abutted against the lower end face of the material sheet so as to clamp the material sheet; the pressing block is arranged on one side of the bump in a lifting manner and can be abutted against the limiting block;
when the material pressing block abuts against the limiting block, a limiting gap for inserting one side of the material sheet is formed between the material pressing block and the concave block.
According to the stretching die, the upper die assembly further comprises an upper die plate, a first guide rod is arranged on the upper die plate, a first guide hole is formed in the material pressing block, and the first guide rod penetrates through the first guide hole.
According to the stretching die, a first spring is arranged between the upper die plate and the material pressing block.
According to the stretching die, the lower die assembly further comprises a lower die plate, a second guide rod is arranged on the lower die plate, a second guide hole is formed in the clamping block, and the second guide rod penetrates through the second guide hole.
According to the stretching die, a second spring is arranged between the lower template and the clamping block.
According to the stretching die, the material pressing block is provided with the material pressing plate, and the material pressing plate can be abutted against the material sheet.
According to the stretching die, the two sides of the concave block are provided with the positioning pieces, and the positioning pieces comprise a base and a positioning block which are arranged on the concave block; the positioning block is slidably arranged on the base and can be abutted against the side edge of the material sheet.
According to the stretching die, the base is provided with the movable adjusting bolt, and one end of the adjusting bolt can be abutted to the positioning block.
According to the stretching die, the lower die assembly is provided with the guide pillar, the upper die assembly is provided with the third guide hole, and the guide pillar penetrates through the third guide hole.
According to the stretching die, the upper die assembly is provided with the first limiting column, the lower die assembly is provided with the second limiting column, and the first limiting column can be abutted to the second limiting column.
The invention has the following beneficial effects:
1. the material sheet is clamped by the convex block and the clamping block, the limit gap for inserting the material feeding sheet is arranged between the material pressing block and the concave block, when the upper die assembly moves downwards, one side of the material sheet inserted into the limit gap can be pulled out, so that the material sheet enters the space between the convex block and the concave block to become a part of a product, the material waste can be avoided, the production cost is reduced, meanwhile, when the material sheet is stretched and formed, the subsequent trimming process is not required to be added, and the working efficiency is improved;
2. the first guide rod penetrates through the first guide hole, so that the guide can be provided for the vertical lifting motion of the material pressing block; the second guide rod penetrates through the second guide hole, so that the guide can be provided for the vertical lifting motion of the clamping block;
3. the first spring is arranged between the upper template and the material pressing block, so that the material pressing block can be driven to be always abutted against the limiting block in the material sheet forming process, and the forming quality of the material sheet is ensured;
4. the second spring is arranged between the lower template and the clamping block, so that the material sheet can be ensured to be always clamped during stretch forming;
5. through setting up the locating piece that can with the butt of tablet side, the position of restriction tablet can prevent the position skew of taking place when stretch forming of tablet.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is another schematic view of FIG. 1;
FIG. 3 is a cross-sectional view of FIG. 1;
FIG. 4 is a schematic structural view of an upper die assembly of the present invention;
FIG. 5 is a schematic view of the construction of the lower die assembly of the present invention;
FIG. 6 is a schematic view of the lower template of FIG. 5 removed;
fig. 7 is a schematic structural diagram of the positioning member of the present invention.
In the figure: 100. a lower die assembly; 110. a concave block; 111. a limiting block; 112. limiting the gap; 120. a clamping block; 121. a second guide hole; 130. a lower template; 131. a second guide bar; 132. a second spring; 140. a positioning member; 141. a base; 142. positioning blocks; 143. adjusting the bolt; 150. a guide post; 160. a second limit post; 200. an upper die assembly; 210. a bump; 220. pressing blocks; 221. a first guide hole; 222. a material pressing plate; 230. mounting a template; 231. a first guide bar; 232. a first spring; 240. a third guide hole; 250. a first limit post.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1 to 7, a drawing die, which is mainly used for drawing and forming a web, includes a lower die assembly 100 and an upper die assembly 200.
The lower die assembly 100 comprises a concave block 110 and a clamping block 120, the clamping block 120 is arranged on the concave block 110 in a lifting manner, and a limiting block 111 is arranged on one side of the concave block 110; the upper die assembly 200 is arranged above the lower die assembly 100 in a lifting manner and comprises a convex block 210 and a material pressing block 220, and the convex block 210 can be inserted into the concave block 110; the convex block 210 can be abutted against the upper end face of the material sheet, and the clamping block 120 can be abutted against the lower end face of the material sheet so as to clamp the material sheet; the pressing block 220 is arranged at one side of the bump 210 in a lifting manner and can be abutted against the limiting block 111; when the pressing block 220 abuts against the limiting block 111, a limiting gap 112 is formed between the pressing block 220 and the concave block 110, and the side of the feeding piece is inserted into the limiting gap.
Specifically, during stretch forming, the material sheet is clamped between the protrusion 210 and the clamping block 120, and one side of the material sheet is inserted into the limiting gap 112, is not compressed, and still has certain fluidity, and when the protrusion 210 of the upper mold assembly 200 pushes the clamping block 120 to descend, the side of the material sheet inserted into the limiting gap 112 can be pulled out, so that the material sheet enters between the protrusion 210 and the concave block 110, and finally becomes a part of a product. The limiting gap 112 is used for limiting the position of the material sheet, and can play a role in pulling the material, so that the forming quality of the material sheet is ensured; the projections 210 and the clamping blocks 120 are used to hold the material sheet to ensure that the material sheet can be pulled out when the upper die assembly 200 descends. According to the scheme, the material sheet is clamped by the convex block 210 and the clamping block 120, the material sheet inserting limiting gap 112 is formed between the material pressing block 220 and the concave block 110, when the upper die assembly 200 descends, one side of the material sheet inserted into the limiting gap 112 can be pulled out, the material sheet enters the space between the convex block 210 and the concave block 110, and the material sheet becomes a part of a product.
As shown in fig. 4 and 5, the upper mold assembly 200 further includes an upper mold plate 230, a first guide rod 231 is disposed on the upper mold plate 230, a first guide hole 221 is disposed on the pressing block 220, and the first guide rod 231 penetrates through the first guide hole 221. The first guide rod 231 is inserted into the first guide hole 221, so that the guide can be provided for the vertical movement of the pressing block 220.
A first spring 232 is disposed between the upper die plate 230 and the swaging block 220. Specifically, the first spring 232 may provide a downward pushing force to drive the material pressing block 220 to be always abutted to the limiting block 111 in the material sheet forming process, so that it can be ensured that the width of the limiting gap 112 between the material pressing block 220 and the concave block 110 is always consistent in the material sheet forming process, and the material sheet forming quality is ensured.
The material pressing block 220 is provided with a material pressing plate 222, the material pressing plate 222 can be abutted against the material sheet, the resilience of the material sheet can be adjusted by changing the area of the material pressing plate 222, and the forming quality of the material sheet is ensured; the arrangement of the material pressing plate 222 is such that when the springback amount of the material sheet needs to be adjusted, only the material pressing plate 222 needs to be replaced.
As shown in fig. 5 and 6, the lower mold assembly 100 further includes a lower mold plate 130, a second guide rod 131 is disposed on the lower mold plate 130, a second guide hole 121 is disposed on the clamping block 120, and the second guide rod 131 is inserted into the second guide hole 121. By inserting the second guide rod 131 into the second guide hole 121, it can provide a guide for the up-and-down movement of the clamping block 120.
A second spring 132 is disposed between the lower plate 130 and the clamping block 120. In particular, the second spring 132 may provide an upward urging force to ensure that the web is always clamped during stretch forming.
As shown in fig. 5 and 7, the positioning members 140 are disposed on both sides of the concave block 110, and each positioning member 140 includes a base 141 and a positioning block 142 disposed on the concave block 110; the positioning block 142 is slidably disposed on the base 141 and can abut against a side edge of the material sheet. The positioning block 142 can be abutted against the side edge of the material sheet to limit the position of the material sheet and prevent the material sheet from being displaced during stretch forming.
The base 141 is provided with a movable adjusting bolt 143, and one end of the adjusting bolt 143 can abut against the positioning block 142. During positioning, the position of the positioning block 142 and the position of the material sheet can be limited by rotating the adjusting bolt 143, so that the material sheet is prevented from being displaced during stretching forming.
As shown in fig. 1, the lower mold assembly 100 is provided with a guide post 150, the upper mold assembly 200 is provided with a third guide hole 240, and the guide post 150 is inserted into the third guide hole 240. By inserting the guide post 150 into the third guide hole 240, it can provide a guide for the up-and-down movement of the upper mold assembly 200.
As shown in fig. 2, the upper mold assembly 200 is provided with a first position-limiting pillar 250, the lower mold assembly 100 is provided with a second position-limiting pillar 160, and the first position-limiting pillar 250 can abut against the second position-limiting pillar 160. When the upper mold assembly 200 and the lower mold assembly 100 are completely closed, the first limiting column 250 abuts against the second limiting column 160, which can prevent the upper mold assembly 200 from continuing to move downwards after the closing is completed, and avoid the damage of the stretching mold.
The scheme provides a stretching die which is mainly used for stretching and forming a material sheet and comprises a lower die assembly 100 and an upper die assembly 200. The material sheet is clamped by the convex block 210 and the clamping block 120, the limit gap 112 for inserting the material sheet is arranged between the material pressing block 220 and the concave block 110, when the upper die assembly 200 moves downwards, one side of the material sheet inserted into the limit gap 112 can be pulled out to enter the space between the convex block 210 and the concave block 110, the material sheet becomes a part of a product, the waste of materials can be avoided, the production cost is reduced, meanwhile, when the material sheet is subjected to stretch forming, the subsequent trimming process does not need to be added, and the working efficiency is improved.
The technical solutions of the present invention are explained in detail above with reference to the accompanying drawings, and the described embodiments are used to help understanding the idea of the present invention. The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
It should be noted that all directional indicators (such as up, down, left, right, front, and back \8230;) in the embodiments of the present invention are only used to explain the relative positional relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicators are changed accordingly.
Moreover, descriptions of the present invention as relating to "first," "second," "a," etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating a 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 explicitly specified otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; 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 addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments, or alternatives may be employed, by those skilled in the art, without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (10)
1. A drawing die for stretch forming a web, comprising:
the lower die assembly comprises a concave block and a clamping block, the clamping block is arranged on the concave block in a lifting manner, and a limiting block is arranged on one side of the concave block;
the upper die assembly is arranged above the lower die assembly in a lifting manner and comprises a convex block and a material pressing block, and the convex block can be inserted into the concave block; the lug can be abutted against the upper end face of the material sheet, and the clamping block can be abutted against the lower end face of the material sheet so as to clamp the material sheet; the pressing block is arranged on one side of the bump in a lifting manner and can be abutted against the limiting block;
when the pressing block is abutted to the limiting block, a limiting gap for inserting one side of the material sheet is formed between the pressing block and the concave block.
2. The drawing die as claimed in claim 1, wherein the upper die assembly further comprises an upper die plate, a first guide rod is arranged on the upper die plate, a first guide hole is formed in the material pressing block, and the first guide rod penetrates through the first guide hole.
3. The drawing die of claim 2, wherein a first spring is disposed between the upper die plate and the swaging block.
4. The stretching die of claim 1, wherein the lower die assembly further comprises a lower die plate, a second guide rod is arranged on the lower die plate, a second guide hole is formed in the clamping block, and the second guide rod penetrates through the second guide hole.
5. The stretching die of claim 4, wherein a second spring is arranged between the lower template and the clamping block.
6. The drawing die as claimed in claim 1, wherein a pressure pad is provided on the pressure block, and the pressure pad is capable of abutting against the material sheet.
7. The drawing die of claim 1, wherein positioning members are arranged on both sides of the concave block, and each positioning member comprises a base and a positioning block which are arranged on the concave block; the positioning block is slidably arranged on the base and can be abutted against the side edge of the material sheet.
8. The drawing die as claimed in claim 7, wherein the base is provided with a movable adjusting bolt, and one end of the adjusting bolt can abut against the positioning block.
9. The drawing die of claim 1, wherein the lower die assembly is provided with guide posts, and the upper die assembly is provided with third guide holes, the guide posts being inserted into the third guide holes.
10. The drawing die of claim 1, wherein the upper die assembly is provided with a first limiting post, the lower die assembly is provided with a second limiting post, and the first limiting post can abut against the second limiting post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211568605.1A CN115647212A (en) | 2022-12-08 | 2022-12-08 | Stretching die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211568605.1A CN115647212A (en) | 2022-12-08 | 2022-12-08 | Stretching die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115647212A true CN115647212A (en) | 2023-01-31 |
Family
ID=85017399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211568605.1A Pending CN115647212A (en) | 2022-12-08 | 2022-12-08 | Stretching die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115647212A (en) |
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| CN211100998U (en) * | 2019-11-18 | 2020-07-28 | 青岛联旺模具制造有限公司 | Go up mould blank pressing forming die |
| CN211360322U (en) * | 2019-11-20 | 2020-08-28 | 青岛联旺模具制造有限公司 | Anti-wrinkling forming die |
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| CN214263541U (en) * | 2020-08-18 | 2021-09-24 | 广州金娄山机械设备有限公司 | Drawing die for complex automobile reinforcing part |
| CN113617917A (en) * | 2021-07-20 | 2021-11-09 | 东风汽车集团股份有限公司 | Forming die and forming method for aluminum hood inner plate |
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| CN115151354A (en) * | 2021-04-09 | 2022-10-04 | 日本技术管理株式会社 | Apparatus and method for manufacturing drawn product |
-
2022
- 2022-12-08 CN CN202211568605.1A patent/CN115647212A/en active Pending
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Application publication date: 20230131 |
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| RJ01 | Rejection of invention patent application after publication |