CN114472641A - Three-nitrogen-cylinder double-material-plate die for shortening die process number and machining method thereof - Google Patents
Three-nitrogen-cylinder double-material-plate die for shortening die process number and machining method thereof Download PDFInfo
- Publication number
- CN114472641A CN114472641A CN202210097875.2A CN202210097875A CN114472641A CN 114472641 A CN114472641 A CN 114472641A CN 202210097875 A CN202210097875 A CN 202210097875A CN 114472641 A CN114472641 A CN 114472641A
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- China
- Prior art keywords
- nitrogen
- die
- nitrogen cylinder
- cylinder
- cylinders
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 58
- 238000004904 shortening Methods 0.000 title claims abstract description 19
- 238000003754 machining Methods 0.000 title description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 205
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 105
- 239000000463 material Substances 0.000 claims abstract description 21
- 238000003825 pressing Methods 0.000 claims abstract description 18
- 238000009966 trimming Methods 0.000 claims abstract description 17
- 238000004080 punching Methods 0.000 claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000003672 processing method Methods 0.000 abstract description 8
- 238000007493 shaping process Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram 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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/28—Associations of cutting devices therewith
-
- 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
- B21D19/00—Flanging or other edge treatment, e.g. of tubes
- B21D19/12—Edge-curling
-
- 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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/34—Perforating tools; Die holders
-
- 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
- B21D37/10—Die sets; Pillar guides
-
- 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
- B21D53/00—Making other particular articles
- B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/32—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure
- B30B1/38—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure wherein the plungers are operated by pressure of a gas, e.g. steam, air
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention relates to the technical field of dies and discloses a three-nitrogen-cylinder double-material-plate die for shortening the number of die processes, which comprises an upper die and a lower die, wherein an upper material pressing plate is arranged below the upper die, a lower material pressing plate is arranged above the lower die, a first nitrogen cylinder and a second nitrogen cylinder are arranged in the upper die, a third nitrogen cylinder is arranged in the lower die, telescopic rods of the first nitrogen cylinder and the second nitrogen cylinder face downwards, a telescopic rod of the third nitrogen cylinder faces upwards, the sum of the pressures of the third nitrogen cylinder is larger than the sum of the pressures of the first nitrogen cylinder and the second nitrogen cylinder and smaller than the sum of the pressures of the first nitrogen cylinder and the second nitrogen cylinder, and the strokes of the first nitrogen cylinder and the third nitrogen cylinder are the same and are larger than the stroke of the second nitrogen cylinder. The invention also discloses a processing method of the three-nitrogen-cylinder double-material-plate die for shortening the number of die processes. The three-nitrogen-cylinder double-material-pressing-plate die for shortening the number of die processes and the processing method thereof shorten the stamping production of parts to 2 processes of drawing, trimming, punching, flanging and shaping, and reduce the development cost and the production cost of the die.
Description
Technical Field
The invention relates to the technical field of dies, in particular to a three-nitrogen-cylinder double-material-plate die for shortening the number of die processes and a processing method thereof.
Background
Through technical updating and continuous accumulation for many years, a complete die CAD/CAM/CAPP development system is established, a refined 3D entity design technology is developed and applied on the basis, new structures are continuously provided, new functions are successfully applied to structural design and manufacturing of dies of covering parts of various cars, and the technologies can effectively ensure the stamping quality of parts and reduce the material cost of the parts.
However, the stamping of the stamped parts usually needs 3 to 5 working procedures and corresponding dies through the working procedures of drawing, trimming, punching, flanging and shaping, and the like, which results in high cost, and the most direct method for reducing the stamping cost is to reduce the number of the working procedures and the number of the correspondingly developed dies, so that the working procedure contents realized by different dies need to be integrated into one set of dies, but the compounding degree of the working procedure contents of the dies and the complexity of the die structure are increased.
The traditional mould double-material-plate 2-nitrogen-cylinder mould structure can only provide 2 groups of nitrogen-cylinder strokes, can only realize the stamping process content of a process for the next time and the previous time, and the part needs to realize 1 time of downward trimming process and 1 time of upward flanging process and 1 time of downward punching process in one process, and needs 3 times of material pressing strokes of the material pressing plates, and the traditional mould structure double-material-plate 2-nitrogen-cylinder strokes can not meet the requirement.
Disclosure of Invention
The invention aims to provide a three-nitrogen-cylinder double-material-plate die for shortening the number of die processes and a processing method thereof, aiming at overcoming the defects of the prior art, and shortening the part stamping production to 2 processes of drawing, trimming, punching, flanging and shaping, thereby reducing the die development cost and the production cost.
In order to achieve the above purpose, the three-nitrogen-cylinder double-material-plate die for shortening the number of die processes comprises an upper die and a lower die, wherein an upper material pressing plate is arranged below the upper die, a lower material pressing plate is arranged above the lower die, a plurality of first nitrogen cylinders and a plurality of second nitrogen cylinders are arranged in the upper die, a plurality of third nitrogen cylinders are arranged in the lower die, telescopic rods of the first nitrogen cylinders and the second nitrogen cylinders face downwards, telescopic rods of the third nitrogen cylinders face upwards, the sum of the pressures of the first nitrogen cylinders is smaller than the sum of the pressures of the third nitrogen cylinders, the sum of the pressures of the first nitrogen cylinders and the second nitrogen cylinders is larger than the sum of the pressures of the third nitrogen cylinders, and the strokes of the first nitrogen cylinders and the third nitrogen cylinders are the same and are larger than the stroke of the second nitrogen cylinder.
Preferably, the upper die is provided with a plurality of trimming knife edges.
Preferably, a plurality of downward punches are arranged in the upper die.
The processing method of the three-nitrogen-cylinder double-material-plate die for shortening the number of die processes comprises the following steps of:
A) the die starts to work, and the upper material pressing plate and the lower material pressing plate start to press materials and contact;
B) closing the die, pressing the upper die downwards, wherein at the moment, the telescopic rod of the first nitrogen cylinder is in contact with the upper pressure plate, the telescopic rod of the third nitrogen cylinder is in contact with the lower pressure plate, the telescopic rod of the second nitrogen cylinder is not in contact with the upper pressure plate, the sum of the pressures of the first nitrogen cylinder is smaller than the sum of the pressures of the third nitrogen cylinder, the telescopic rod of the first nitrogen cylinder is compressed, the upper pressure plate and the lower pressure plate are not moved, and the upper die continues to be pressed downwards to drive the trimming knife edge to move downwards to complete a downward trimming process;
C) the upper die is pressed downwards to the telescopic rod of the second nitrogen cylinder to be in contact with the upper pressure plate, at the moment, the sum of the pressures of the first nitrogen cylinder and the second nitrogen cylinder is larger than the sum of the pressures of the third nitrogen cylinder, and the upper pressure plate drives the lower pressure plate to move downwards together to complete an upper flanging process;
D) and the upper die continues to be pressed downwards, after the telescopic rod of the third nitrogen cylinder is compressed to the maximum stroke, the upper pressure plate and the lower pressure plate are not moved, and the punch moves downwards under the driving of the upper die to complete the punching process.
Compared with the prior art, the invention has the following advantages:
1. the part stamping production is shortened to 2 working procedures of drawing, trimming, flanging and punching, so that the development cost and the production cost of the die are reduced;
2. according to the action time of 3 process contents to be realized by the die, the pressure and stroke design of 3 groups of nitrogen cylinders is carried out again, and 3 process contents of trimming, flanging and punching which can be realized only by 2 processes are integrated into 1 process.
Drawings
FIG. 1 is a longitudinal sectional view of a three-nitrogen cylinder double-material-plate die for shortening the number of die processes according to the present invention;
FIG. 2 is a schematic view of a trimming process in accordance with the present invention;
FIG. 3 is a schematic view of a flanging process in accordance with the present invention;
FIG. 4 is a schematic view of a punching process in the present invention;
FIG. 5 is a schematic structural view of the lower mold of FIG. 1;
fig. 6 is a schematic structural view of the upper mold in fig. 1.
FIG. 7 is a stroke diagram of the three-nitrogen cylinder two-material plate die for shortening the number of die processes according to the present invention.
The components in the figures are numbered as follows:
the device comprises an upper die 1, a lower die 2, an upper pressure plate 3, a lower pressure plate 4, a first nitrogen cylinder 5, a second nitrogen cylinder 6, a third nitrogen cylinder 7, a trimming knife edge 8 and a punch 9.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments.
As shown in fig. 1, 5 and 6, the three-nitrogen-cylinder double-material-plate die for shortening the number of die processes comprises an upper die 1 and a lower die 2, wherein an upper material pressing plate 3 is arranged below the upper die 1, a lower material pressing plate 4 is arranged above the lower die 2, 10 first nitrogen cylinders 5 and 10 second nitrogen cylinders 6 are arranged in the upper die 1, 12 third nitrogen cylinders 7 are arranged in the lower die 2, telescopic rods of the first nitrogen cylinders 5 and the second nitrogen cylinders 6 face downwards, a telescopic rod of the third nitrogen cylinder 7 faces upwards, the sum of the pressures of the first nitrogen cylinders 5 is smaller than that of the third nitrogen cylinders 7, the sum of the pressures of the first nitrogen cylinders 5 and the second nitrogen cylinders 6 is larger than that of the third nitrogen cylinders 7, and the strokes of the first nitrogen cylinders 5 and the third nitrogen cylinders 7 are the same and are larger than that of the second nitrogen cylinders 6.
In addition, in the present embodiment, the upper die 1 is provided with 2 trimming edges 8, and the upper die 1 is provided with 1 downward punch 9.
The processing method of the three-nitrogen-cylinder double-material-plate die for shortening the number of die processes in the embodiment comprises the following steps:
A) as shown in fig. 1, the mold starts to work, and the upper material pressing plate 3 and the lower material pressing plate 4 start to press and contact;
B) as shown in fig. 2, closing the mold, pressing the upper mold 1 downwards, wherein at this time, the telescopic rod of the first nitrogen cylinder 5 is in contact with the upper pressure plate 3, the telescopic rod of the third nitrogen cylinder 7 is in contact with the lower pressure plate 4, the telescopic rod of the second nitrogen cylinder 6 is not in contact with the upper pressure plate 3, the sum 7.5T of the pressures of the first nitrogen cylinder 5 is smaller than the sum 12T of the pressures of the third nitrogen cylinder 7, the telescopic rod of the first nitrogen cylinder 5 is compressed, the upper pressure plate 3 and the lower pressure plate 4 are not moved, the upper mold 1 continues to be pressed downwards, and the knife edge 8 is driven to move downwards to complete the downward trimming process;
C) as shown in fig. 3, the telescopic rod of the upper die 1 which is pushed down to the second nitrogen cylinder 6 is in contact with the upper pressure plate 4, at this time, the telescopic rod of the first nitrogen cylinder 5 is compressed by 12mm, the sum 31.5T of the pressures of the first nitrogen cylinder 5 and the second nitrogen cylinder 6 is greater than the sum 12T of the pressures of the third nitrogen cylinder 7, the upper pressure plate 3 drives the lower pressure plate 4 to move downwards together, and the upper flanging process is completed;
D) as shown in fig. 4, the upper die 1 continues to be pressed downwards, after the telescopic rod of the third nitrogen cylinder 7 is compressed to the maximum stroke of 25mm, the upper pressure plate 3 and the lower pressure plate 4 are not moved, the telescopic rods of the first nitrogen cylinder 5 and the second nitrogen cylinder 6 continue to be compressed by 15mm, the punch 9 is driven by the upper die 1 to move downwards, the punching process is completed, at this time, the telescopic rod of the first nitrogen cylinder 5 is compressed by 27mm, and the telescopic rod of the second nitrogen cylinder 6 is compressed by 15 mm.
The stroke of the die in the above processing method is shown in fig. 7.
The three-nitrogen-cylinder double-material-plate die for shortening the number of die processes and the processing method thereof shorten the part stamping production to 2 processes of drawing, trimming, flanging and punching, thereby reducing the die development cost and the production cost; according to the action time of 3 process contents to be realized by the die, the pressure and stroke design of 3 groups of nitrogen cylinders is carried out again, and 3 process contents of trimming, flanging and punching which can be realized only by 2 processes are integrated into 1 process.
Claims (4)
1. The utility model provides a two flitch moulds of three nitrogen jar for shortening mould process number, includes mould (1) and lower mould (2), its characterized in that: the die is characterized in that a material pressing plate (3) is arranged below the upper die (1), a lower material pressing plate (4) is arranged above the lower die (2), a plurality of first nitrogen cylinders (5) and a plurality of second nitrogen cylinders (6) are arranged in the upper die (1), a plurality of third nitrogen cylinders (7) are arranged in the lower die (2), telescopic rods of the first nitrogen cylinders (5) and the second nitrogen cylinders (6) face downwards, telescopic rods of the third nitrogen cylinders (7) face upwards, the sum of pressures of the first nitrogen cylinders (5) is smaller than the sum of pressures of the third nitrogen cylinders (7), the sum of pressures of the first nitrogen cylinders (5) and the second nitrogen cylinders (6) is larger than the sum of pressures of the third nitrogen cylinders (7), the strokes of the first nitrogen cylinders (5) and the third nitrogen cylinders (7) are the same, and the stroke of the second nitrogen cylinders (6) is larger than.
2. The three-nitrogen cylinder double-material-plate die for shortening the number of die processes as claimed in claim 1, wherein: the upper die (1) is provided with a plurality of trimming knife edges (8).
3. The three-nitrogen cylinder double-material-plate die for shortening the number of die processes as claimed in claim 2, wherein: a plurality of punches (9) with downward directions are arranged in the upper die (1).
4. A method for processing a three-nitrogen cylinder two-material plate die for shortening the number of die processes as claimed in claim 3, wherein: the method comprises the following steps:
A) the die starts to work, and the upper material pressing plate (3) and the lower material pressing plate (4) start to press materials to be contacted;
B) closing the die, wherein the upper die (1) is pressed downwards, at the moment, the telescopic rod of the first nitrogen cylinder (5) is in contact with the upper pressure plate (3), the telescopic rod of the third nitrogen cylinder (7) is in contact with the lower pressure plate (4), the telescopic rod of the second nitrogen cylinder (6) is not in contact with the upper pressure plate (3), the sum of the pressures of the first nitrogen cylinder (5) is smaller than the sum of the pressures of the third nitrogen cylinder (7), the telescopic rod of the first nitrogen cylinder (5) is compressed, the upper pressure plate (3) and the lower pressure plate (4) are not moved, the upper die (1) is continuously pressed downwards, and the knife edge (8) is driven to move downwards to complete a downward trimming process;
C) the upper die (1) is pressed downwards until the telescopic rod of the second nitrogen cylinder (6) is contacted with the upper pressure plate (4), at the moment, the sum of the pressures of the first nitrogen cylinder (5) and the second nitrogen cylinder (6) is larger than the sum of the pressures of the third nitrogen cylinder (7), and the upper pressure plate (3) drives the lower pressure plate (4) to move downwards together, so that the upper flanging process is completed;
D) the upper die (1) continues to be pressed downwards, after the telescopic rod of the third nitrogen cylinder (7) is compressed to the maximum stroke, the upper pressure plate (3) and the lower pressure plate (4) are not moved, and the punch (9) is driven by the upper die (1) to move downwards to complete the punching process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210097875.2A CN114472641B (en) | 2022-01-27 | 2022-01-27 | Three-nitrogen cylinder double-pressing plate die for shortening die step number and processing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210097875.2A CN114472641B (en) | 2022-01-27 | 2022-01-27 | Three-nitrogen cylinder double-pressing plate die for shortening die step number and processing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114472641A true CN114472641A (en) | 2022-05-13 |
| CN114472641B CN114472641B (en) | 2024-05-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210097875.2A Active CN114472641B (en) | 2022-01-27 | 2022-01-27 | Three-nitrogen cylinder double-pressing plate die for shortening die step number and processing method thereof |
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| Country | Link |
|---|---|
| CN (1) | CN114472641B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09122783A (en) * | 1995-11-01 | 1997-05-13 | Watanabe Kosakusho:Kk | Multi stage working press die and pressing method therefor |
| KR20020058789A (en) * | 2000-12-30 | 2002-07-12 | 이계안 | Piercing press system |
| CN102513445A (en) * | 2011-11-30 | 2012-06-27 | 长城汽车股份有限公司 | Trimming and flanging composite stamping die |
| CN206139721U (en) * | 2016-09-26 | 2017-05-03 | 常熟市创新模具有限公司 | Shaping cut -out press |
| CN108326148A (en) * | 2018-02-06 | 2018-07-27 | 安徽江淮汽车集团股份有限公司 | A kind of flange punching die |
| CN207787464U (en) * | 2017-12-26 | 2018-08-31 | 浙江吉润汽车有限公司 | A kind of shaping punching die structure |
-
2022
- 2022-01-27 CN CN202210097875.2A patent/CN114472641B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09122783A (en) * | 1995-11-01 | 1997-05-13 | Watanabe Kosakusho:Kk | Multi stage working press die and pressing method therefor |
| KR20020058789A (en) * | 2000-12-30 | 2002-07-12 | 이계안 | Piercing press system |
| CN102513445A (en) * | 2011-11-30 | 2012-06-27 | 长城汽车股份有限公司 | Trimming and flanging composite stamping die |
| CN206139721U (en) * | 2016-09-26 | 2017-05-03 | 常熟市创新模具有限公司 | Shaping cut -out press |
| CN207787464U (en) * | 2017-12-26 | 2018-08-31 | 浙江吉润汽车有限公司 | A kind of shaping punching die structure |
| CN108326148A (en) * | 2018-02-06 | 2018-07-27 | 安徽江淮汽车集团股份有限公司 | A kind of flange punching die |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114472641B (en) | 2024-05-28 |
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