CN117798256A - Large-shaping-amount continuous trimming belt trimming die and processing method thereof - Google Patents
Large-shaping-amount continuous trimming belt trimming die and processing method thereof Download PDFInfo
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- CN117798256A CN117798256A CN202311852186.9A CN202311852186A CN117798256A CN 117798256 A CN117798256 A CN 117798256A CN 202311852186 A CN202311852186 A CN 202311852186A CN 117798256 A CN117798256 A CN 117798256A
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- trimming
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- upper die
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- 238000009966 trimming Methods 0.000 title claims abstract description 121
- 238000003672 processing method Methods 0.000 title abstract description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 56
- 238000007493 shaping process Methods 0.000 claims abstract description 45
- 238000007667 floating Methods 0.000 claims abstract description 41
- 230000007246 mechanism Effects 0.000 claims abstract description 39
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 13
- 238000003825 pressing Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 19
- 230000008569 process Effects 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
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- Punching Or Piercing (AREA)
Abstract
The invention relates to the technical field of dies and discloses a large-shaping-amount continuous trimming and trimming die which comprises an upper die and a lower die, wherein the upper die is provided with a pressing plate for pressing a plate material, a shaping male die is arranged at the position of the upper die facing the lower die, a shaping insert corresponding to the shaping male die is arranged on the lower die, a floating trimming mechanism for trimming the plate material is further arranged on the upper die, the floating trimming mechanism can move up and down on the upper die, a nitrogen cylinder for propping against the floating trimming mechanism is arranged on the upper die, a vertical guide pillar is arranged on the lower die, the floating trimming mechanism can be sleeved on the guide pillar, and a limiting block for limiting the downward stroke of the floating trimming mechanism is arranged on the lower die. The invention also discloses a processing method of the large-shaping-amount continuous trimming belt trimming die. The invention uses the large-shaping quantity continuous trimming strip trimming die and the processing method thereof, and can limit the trimming travel under the large-shaping quantity, thereby ensuring the strength of the shaping insert and realizing the continuous trimming of the large-shaping quantity.
Description
Technical Field
The invention relates to the technical field of dies, in particular to a large-shaping-amount continuous trimming die and a processing method thereof.
Background
In recent years, the technology of each mold company is updated and continuously accumulated for many years, a complete mold CAD/CAM/CAPP development system is established, and a 'fine 3D entity design' technology is developed and applied on the basis, so that new structures are continuously provided, new functions are successfully applied to the structural design and manufacturing of molds of covering parts of various cars, the technologies can effectively ensure the stamping quality of parts, and the material cost of the parts is reduced.
The stamping of the stamping part usually requires 3 to 5 working procedures and corresponding dies through working procedures such as drawing, trimming, punching, flanging and shaping, the most direct method for reducing the stamping cost is to reduce the number of working procedures and the number of dies correspondingly developed, the working procedure contents realized by different dies are integrated into one set of dies, but the working procedure content compounding degree of the dies and the complexity of the die structure are increased. Trimming and shaping are often integrated into one procedure in the die structure, so that the problem is not solved for realizing the part structure with smaller shaping amount, but the strength of the die structure is adversely affected when the shaping amount is larger, and the conventional structure cannot be solved.
The traditional stamping part process of the continuous trimming strip trimming die structure is to trim and then reshape, the trimming stroke is trimming stroke and reshaping stroke, and generally under the condition of smaller trimming quantity, the whole trimming stroke can not be very large, and the strength of the die cutting edge can be ensured. The trimming stroke is larger than the trimming stroke to enable the part to be reshaped after trimming, so that the dimensional accuracy of the part is guaranteed, the part with smaller trimming amount is not problematic in the traditional method, but when the trimming amount is larger, the trimming stroke is correspondingly enlarged to exceed the trimming stroke in order to meet the dimensional requirement of the part, the trimming stroke is large, the cutting-in amount of the trimming female die is large, the structural strength of the die is often deteriorated due to the excessive trimming stroke, and the traditional continuous trimming structure cannot meet the continuous trimming stamping process requirement of large trimming amount.
Disclosure of Invention
The invention aims to overcome the defects of the technology, and provides a large-shaping-amount continuous trimming and trimming die and a processing method thereof, which can limit the trimming stroke under the condition of large shaping amount, thereby ensuring the strength of a shaping insert block and realizing continuous trimming and trimming of large shaping amount.
In order to achieve the purpose, the large-shaping-amount continuous trimming and trimming die comprises an upper die and a lower die, wherein the upper die is provided with a pressing plate for pressing a plate material, a shaping male die is arranged at the position, facing the lower die, of the upper die, a shaping insert corresponding to the shaping male die is arranged on the lower die, a floating trimming mechanism for trimming the plate material is further arranged on the upper die, the floating trimming mechanism can move up and down on the upper die, a nitrogen cylinder for propping against the floating trimming mechanism is arranged on the upper die, a vertical guide pillar is arranged on the lower die, the floating trimming mechanism can be sleeved on the guide pillar, and a limiting block for limiting the downward stroke of the floating trimming mechanism is arranged on the lower die.
Preferably, when the floating trimming mechanism trims, the trimming force is smaller than the maintenance force of the nitrogen cylinder.
Preferably, after trimming is completed, the upper die continues to descend, and the pressure generated by the upper die on the nitrogen cylinder is greater than the maintaining force of the nitrogen cylinder.
A processing method of a large-shaping-amount continuous trimming belt trimming die comprises the following steps:
a) After the plate material is placed, the die starts to work, the upper die descends, and when the pressing plate presses the plate material, the floating trimming mechanism is sleeved on the guide post and moves downwards along the guide post;
b) The upper die continues to descend, the floating trimming mechanism starts to trim, the trimming force is smaller than the maintaining force of the nitrogen cylinder, and the nitrogen cylinder is not compressed;
c) The upper die continues to descend, the floating trimming mechanism finishes trimming, the nitrogen cylinder cannot be compressed until the floating trimming mechanism is limited by the limiting block, and the floating trimming mechanism does not continue to descend;
d) And the upper die continues to descend, shaping is completed under the action of the shaping male die and the shaping insert, and in the process, the nitrogen cylinder is compressed.
Compared with the prior art, the invention has the following advantages:
1. the trimming structure in the traditional trimming structure is changed from a fixed mode to a floating mode to limit the trimming stroke, so that the requirement of large-stroke trimming amount is effectively met, and the strength of the die is ensured;
2. the trimming stroke can be limited under the condition of large shaping quantity, so that the strength of the shaping insert is ensured, and continuous trimming with large shaping quantity is realized;
3. the problem of the process of increasing the mould due to the problem of mould strength is avoided, and the mould development cost is reduced.
Drawings
FIG. 1 is a schematic diagram of a large-shaping-amount continuous trimming belt trimming die;
FIG. 2 is a schematic view of the structure of the present invention at the beginning of trimming;
FIG. 3 is a schematic view of the structure of the trimming device of the present invention;
fig. 4 is a schematic structural diagram of the shaping device of the present invention after shaping.
The reference numerals of the components in the drawings are as follows:
the device comprises an upper die 1, a lower die 2, a pressing plate 3, a shaping male die 4, a shaping trimming insert 5, a floating trimming mechanism 6, a nitrogen cylinder 7, a guide post 8 and a limiting block 9.
Detailed Description
The invention will now be described in further detail with reference to the drawings and to specific examples.
As shown in fig. 1, the large-shaping-amount continuous trimming belt trimming die comprises an upper die 1 and a lower die 2, wherein the upper die 1 is provided with a pressing plate 3 for pressing a plate material, a shaping male die 4 is arranged at the position of the upper die 1 facing the lower die 2, a shaping insert 5 corresponding to the shaping male die 4 is arranged on the lower die 2, a floating trimming mechanism 6 for trimming the plate material is further arranged on the upper die 1, the floating trimming mechanism 6 can move up and down on the upper die 1, a nitrogen cylinder 7 for propping against the floating trimming mechanism 6 is arranged on the upper die 1, a vertical guide pillar 8 is arranged on the lower die 2, the floating trimming mechanism 6 can be sleeved on the guide pillar 8, and a limiting block 9 for limiting the downward travel of the floating trimming mechanism 6 is arranged on the lower die 2.
When the floating trimming mechanism 6 trims, the trimming force is smaller than the holding force of the nitrogen cylinder 7, and in this embodiment, the holding weight of the nitrogen cylinder 7 is 17 tons.
After trimming is completed, the upper die continues to move downwards, and the pressure generated by the upper die on the nitrogen cylinder 7 is larger than the maintaining force of the nitrogen cylinder 7.
When the embodiment is used, the method comprises the following steps:
a) Referring to fig. 1, after a plate is placed, the die starts to work, the upper die 1 descends, and when the pressing plate 3 presses the plate, the floating trimming mechanism 6 is sleeved on the guide post 8 and moves downwards along the guide post 8;
b) With reference to fig. 2, the upper die 1 continues to move down, the floating trimming mechanism 6 starts to trim, the trimming force is 12 tons, which is smaller than the maintaining force of 17 tons of the nitrogen cylinder 7, and the nitrogen cylinder 7 is not compressed;
c) With reference to fig. 3, the upper die 1 continues to move downwards, the floating trimming mechanism 6 completes trimming, the nitrogen cylinder 7 is not compressed until the floating trimming mechanism 6 is limited by the limiting block 9, and the floating trimming mechanism 6 does not continue to move downwards any more;
d) With reference to fig. 4, the upper die 1 continues to move down, and the shaping is completed under the action of the shaping punch 4 and the shaping insert 5, and in this process, the nitrogen cylinder 7 is compressed, in this embodiment, the shaping amount is 20mm, and the nitrogen cylinder 7 is compressed by 30mm.
According to the large-shaping-amount continuous trimming strip trimming die and the processing method thereof, the trimming stroke limiting is carried out in a manner that the trimming structure in the traditional shaping trimming structure is changed from a fixed manner to a floating manner, so that the requirement of large-stroke shaping amount is effectively met, and the strength of the die is ensured; the trimming stroke can be limited under the condition of large shaping quantity, so that the strength of the shaping insert 5 is ensured, and continuous trimming with large shaping quantity is realized; the problem of the process of increasing the mould due to the problem of mould strength is avoided, and the mould development cost is reduced.
Claims (4)
1. The utility model provides a take integer mould is even repaiied to big plastic volume, includes mould (1) and lower mould (2), go up mould (1) and be equipped with pressure flitch (3) of pushing down the sheet material, its characterized in that: the upper die (1) is provided with a shaping male die (4) towards the position of the lower die (2), the lower die (2) is provided with a shaping insert (5) corresponding to the shaping male die (4), the upper die (1) is further provided with a floating trimming mechanism (6) for trimming a plate material, the floating trimming mechanism (6) can move up and down on the upper die (1), the upper die (1) is provided with a nitrogen cylinder (7) for propping against the floating trimming mechanism (6), the lower die (2) is provided with a vertical guide pillar (8), the floating trimming mechanism (6) can be sleeved on the guide pillar (8), and the lower die (2) is provided with a limiting block (9) for limiting the downward stroke of the floating trimming mechanism (6).
2. The high-shaping-amount continuous-repair strip finishing die as set forth in claim 1, wherein: when the floating trimming mechanism (6) trims, the trimming force is smaller than the maintaining force of the nitrogen cylinder (7).
3. The high-shaping-amount continuous-repair strip finishing die as set forth in claim 1, wherein: after trimming is completed, the upper die continues to move downwards, and the pressure generated by the upper die on the nitrogen cylinder (7) is larger than the maintaining force of the nitrogen cylinder (7).
4. A method for processing the large-shaping-amount continuous trimming belt trimming die as claimed in claim 1, wherein the method comprises the following steps: the method comprises the following steps:
a) After the plate material is placed, the die starts to work, the upper die (1) descends, and when the pressing plate (3) presses the plate material, the floating trimming mechanism (6) is sleeved on the guide post (8) and moves downwards along the guide post (8);
b) The upper die (1) continues to descend, the floating trimming mechanism (6) starts trimming, the trimming force is smaller than the maintaining force of the nitrogen cylinder (7), and the nitrogen cylinder (7) cannot be compressed;
c) The upper die (1) continues to move downwards, the floating trimming mechanism (6) finishes trimming, the nitrogen cylinder (7) cannot be compressed until the floating trimming mechanism (6) is limited by the limiting block (9), and the floating trimming mechanism (6) does not continue to move downwards any more;
d) The upper die (1) continues to descend, and shaping is completed under the action of the shaping male die (4) and the shaping insert (5), and in the process, the nitrogen cylinder (7) can be compressed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311852186.9A CN117798256A (en) | 2023-12-29 | 2023-12-29 | Large-shaping-amount continuous trimming belt trimming die and processing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311852186.9A CN117798256A (en) | 2023-12-29 | 2023-12-29 | Large-shaping-amount continuous trimming belt trimming die and processing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117798256A true CN117798256A (en) | 2024-04-02 |
Family
ID=90423370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311852186.9A Pending CN117798256A (en) | 2023-12-29 | 2023-12-29 | Large-shaping-amount continuous trimming belt trimming die and processing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117798256A (en) |
-
2023
- 2023-12-29 CN CN202311852186.9A patent/CN117798256A/en active Pending
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