CN114472641B - Three-nitrogen cylinder double-pressing plate die for shortening die step number and processing method thereof - Google Patents
Three-nitrogen cylinder double-pressing plate die for shortening die step number and processing method thereof Download PDFInfo
- Publication number
- CN114472641B CN114472641B CN202210097875.2A CN202210097875A CN114472641B CN 114472641 B CN114472641 B CN 114472641B CN 202210097875 A CN202210097875 A CN 202210097875A CN 114472641 B CN114472641 B CN 114472641B
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- Prior art keywords
- pressing plate
- nitrogen
- nitrogen cylinder
- die
- sum
- Prior art date
- 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.)
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 239
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 124
- 238000003825 pressing Methods 0.000 title claims abstract description 63
- 238000004904 shortening Methods 0.000 title claims abstract description 14
- 238000003672 processing method Methods 0.000 title abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 40
- 238000009966 trimming Methods 0.000 claims abstract description 20
- 238000004080 punching Methods 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims description 8
- 230000009977 dual effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000007493 shaping process Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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
Landscapes
- 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-pressure-plate die for shortening the die procedure, which comprises an upper die and a lower die, wherein an upper pressure plate is arranged below the upper die, a lower pressure 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, a telescopic rod of the first nitrogen cylinder and a telescopic rod of the second nitrogen cylinder face downwards, the 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 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 larger than the stroke of the second nitrogen cylinder. The invention also discloses a processing method of the three-nitrogen cylinder double-pressing plate die for shortening the number of die steps. The three-nitrogen cylinder double-pressing plate die for shortening the number of die steps and the processing method thereof shorten the stamping production of parts to 2 steps 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-pressing plate die for shortening the number of die steps and a processing method thereof.
Background
After years of technology update and continuous accumulation, a complete mold CAD/CAM/CAPP development system is established, and a 'refined 3D entity design' technology is developed and applied on the basis, so that new structures are continuously provided, the 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.
However, the stamping of the stamping part usually requires 3 to 5 working procedures and corresponding dies through drawing, trimming, punching, flanging, shaping and other working procedures, so that the cost is high, 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, and the working procedure content compounding degree of the dies and the complexity of the die structure are increased.
The traditional die structure with 2 nitrogen cylinders of the double-pressure plate can only provide 2 nitrogen cylinder strokes, can only realize the stamping procedure content of the next and the last procedures, and the part needs to realize 1 downward trimming procedure, 1 upward flanging procedure and 1 downward punching procedure in one procedure, and needs 3 material pressing strokes of the pressure plate, and the traditional die structure with 2 nitrogen cylinders of the double-pressure plate can not meet the requirement.
Disclosure of Invention
The invention aims to overcome the defects of the technology, and provides a three-nitrogen-cylinder double-pressing plate die for shortening the number of die steps and a processing method thereof, wherein the stamping production of parts is shortened to 2 steps of drawing, trimming, punching, flanging and shaping, and the development cost and the production cost of the die are reduced.
In order to achieve the above purpose, the three-nitrogen-cylinder double-pressure-plate die for shortening the number of die steps comprises an upper die and a lower die, wherein an upper pressure plate is arranged below the upper die, a lower pressure 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 larger than the strokes of the second nitrogen cylinders.
Preferably, the upper die is provided with a plurality of trimming edges.
Preferably, a plurality of punches facing downwards are arranged in the upper die.
The processing method of the three-nitrogen cylinder double-pressing plate die for shortening the number of die steps comprises the following steps:
a) The die starts to work, and the upper pressing plate and the lower pressing plate start to press and contact;
B) The upper die is pressed down, at the moment, the telescopic rod of the first nitrogen cylinder is contacted with the upper pressing plate, the telescopic rod of the third nitrogen cylinder is contacted with the lower pressing plate, the telescopic rod of the second nitrogen cylinder is not contacted with the upper pressing plate, the sum of the pressures of the first nitrogen cylinders is smaller than the sum of the pressures of the third nitrogen cylinders, the telescopic rod of the first nitrogen cylinder is compressed, the upper pressing plate and the lower pressing plate are not moved, the upper die is continuously pressed down, and the trimming knife edge is driven to move downwards to finish a downward trimming process;
c) The upper die is pressed down until the telescopic rod of the second nitrogen cylinder is contacted with the upper pressing 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 pressing plate drives the lower pressing plate to move downwards together, so that an upper flanging process is completed;
D) The upper die continues to be pressed down, after the telescopic rod of the third nitrogen cylinder is compressed to the maximum stroke, the upper material pressing plate and the lower material pressing plate are fixed, and the punch moves downwards under the drive of the upper die, so that the punching process is completed.
Compared with the prior art, the invention has the following advantages:
1. the stamping production of the parts 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. and (3) according to the action time of 3 working procedure contents to be realized by the die, the design of the pressure and the stroke of the 3 groups of nitrogen cylinders is carried out again, and the 3 working procedure contents of trimming, flanging and punching which can be realized only by 2 working procedures are integrated into 1 working procedure.
Drawings
FIG. 1 is a longitudinal cross-sectional view of a triple nitrogen cylinder dual platen die for reducing the number of die steps according to the present invention;
FIG. 2 is a schematic diagram of an edge trimming process according to the present invention;
FIG. 3 is a schematic diagram of a flanging process according to the present invention;
FIG. 4 is a schematic diagram of a punching process according to the present invention;
FIG. 5 is a schematic view of the lower die of FIG. 1;
fig. 6 is a schematic structural view of the upper die in fig. 1.
Fig. 7 is a diagram showing the process of working a three nitrogen cylinder double-platen die for shortening the number of die steps according to the present invention.
The reference numerals of the components in the drawings are as follows:
the upper die 1, the lower die 2, the upper pressing plate 3, the lower pressing plate 4, the first nitrogen cylinder 5, the second nitrogen cylinder 6, the third nitrogen cylinder 7, the trimming knife edge 8 and the punch 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, 5 and 6, the three-nitrogen-cylinder double-pressing plate die for shortening the number of die steps comprises an upper die 1 and a lower die 2, wherein an upper pressing plate 3 is arranged below the upper die 1, a lower 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, telescopic rods of the third nitrogen cylinders 7 face upwards, the sum of the pressures of the first nitrogen cylinders 5 is smaller than the sum of the pressures 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 the sum of the pressures 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 larger than the strokes of the second nitrogen cylinders 6.
In addition, in this embodiment, 2 trimming edges 8 are provided on the upper die 1, and 1 punch 9 is provided in the upper die 1 in a downward direction.
The processing method of the three-nitrogen cylinder double-pressing plate die for shortening the die step number comprises the following steps of:
a) As shown in fig. 1, the die starts to work, and the upper pressing plate 3 and the lower pressing plate 4 start to press and contact;
B) As shown in fig. 2, the upper die 1 is closed and pressed down, at this time, the telescopic rod of the first nitrogen cylinder 5 is in contact with the upper pressing plate 3, the telescopic rod of the third nitrogen cylinder 7 is in contact with the lower pressing plate 4, the telescopic rod of the second nitrogen cylinder 6 is not in contact with the upper pressing 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 pressing plate 3 and the lower pressing plate 4 are not moved, the upper die 1 continues to be pressed down, and the trimming knife edge 8 is driven to move downwards to finish the downward trimming process;
c) As shown in fig. 3, the upper die 1 is pressed down until the telescopic rod of the second nitrogen cylinder 6 contacts with the upper pressing 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 larger than the sum 12T of the pressures of the third nitrogen cylinder 7, and the upper pressing plate 3 drives the lower pressing plate 4 to move downwards together, so as to complete the upper flanging process;
D) As shown in fig. 4, the upper die 1 continues to be pressed down, after the telescopic rod of the third nitrogen cylinder 7 is compressed to the maximum stroke of 25mm, the upper pressing plate 3 and the lower pressing plate 4 are not moved, the telescopic rods of the first nitrogen cylinder 5 and the second nitrogen cylinder 6 continue to be compressed for 15mm, the punch 9 moves downwards under the driving of the upper die 1, the punching process is completed, at this time, the telescopic rod of the first nitrogen cylinder 5 is compressed for 27mm, and the telescopic rod of the second nitrogen cylinder 6 is compressed for 15mm.
The travel of the die in the above processing method is shown in fig. 7.
The three-nitrogen cylinder double-pressing plate die for shortening the number of die steps and the processing method thereof shorten the stamping production of parts to 2 steps of drawing, trimming, flanging and punching, and reduce the development cost and the production cost of the die; and (3) according to the action time of 3 working procedure contents to be realized by the die, the design of the pressure and the stroke of the 3 groups of nitrogen cylinders is carried out again, and the 3 working procedure contents of trimming, flanging and punching which can be realized only by 2 working procedures are integrated into 1 working procedure.
Claims (2)
1. A three nitrogen jar double pressure flitch moulds for shortening mould step number, includes mould (1) and lower mould (2), its characterized in that: the lower part of going up mould (1) is equipped with and presses flitch (3), the top of lower mould (2) is equipped with down and presses flitch (4), be equipped with a plurality of first nitrogen jar (5) and a plurality of second nitrogen jar (6) in going up mould (1), be equipped with a plurality of third nitrogen jar (7) in lower mould (2), the telescopic link of first nitrogen jar (5) and second nitrogen jar (6) is down, the telescopic link of third nitrogen jar (7) is up, the sum of the pressure of first nitrogen jar (5) is less than the sum of the pressure of third nitrogen jar (7), the sum of the pressure of first nitrogen jar (5) and second nitrogen jar (6) is greater than the sum of the pressure of third nitrogen jar (7), the stroke of first nitrogen jar (5) and third nitrogen jar (7) is the same, and is greater than the stroke of second nitrogen jar (6), be equipped with on mould (1) and be equipped with on the deburring that a plurality of is down cut (8), when mould (9) are down cut (1), include in a plurality of steps (9) down in the mould:
a) The die starts to work, and the upper pressing plate (3) and the lower pressing plate (4) start to press and contact;
B) The die assembly is carried out, the upper die (1) is pressed down, at the moment, the telescopic rod of the first nitrogen cylinder (5) is contacted with the upper pressing plate (3), the telescopic rod of the third nitrogen cylinder (7) is contacted with the lower pressing plate (4), the telescopic rod of the second nitrogen cylinder (6) is not contacted with the upper pressing 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 pressing plate (3) and the lower pressing plate (4) are not moved, and the upper die (1) is continuously pressed down to drive the trimming knife edge (8) to move downwards to finish a downward trimming process;
C) The upper die (1) is pressed down until a telescopic rod of the second nitrogen cylinder (6) is in contact with the upper pressing 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 pressing plate (3) drives the lower pressing plate (4) to move downwards together to finish an upper flanging process;
d) The upper die (1) continues to be pressed down, after the telescopic rod of the third nitrogen cylinder (7) is compressed to the maximum stroke, the upper material pressing plate (3) and the lower material pressing plate (4) are fixed, and the punch (9) moves downwards under the driving of the upper die (1) to finish the punching process.
2. A method of working a tri-nitrogen cylinder dual platen die for reducing the number of die steps as claimed in claim 1, wherein: the method comprises the following steps:
a) The die starts to work, and the upper pressing plate (3) and the lower pressing plate (4) start to press and contact;
B) The die assembly is carried out, the upper die (1) is pressed down, at the moment, the telescopic rod of the first nitrogen cylinder (5) is contacted with the upper pressing plate (3), the telescopic rod of the third nitrogen cylinder (7) is contacted with the lower pressing plate (4), the telescopic rod of the second nitrogen cylinder (6) is not contacted with the upper pressing 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 pressing plate (3) and the lower pressing plate (4) are not moved, and the upper die (1) is continuously pressed down to drive the trimming knife edge (8) to move downwards to finish a downward trimming process;
C) The upper die (1) is pressed down until a telescopic rod of the second nitrogen cylinder (6) is in contact with the upper pressing 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 pressing plate (3) drives the lower pressing plate (4) to move downwards together to finish an upper flanging process;
d) The upper die (1) continues to be pressed down, after the telescopic rod of the third nitrogen cylinder (7) is compressed to the maximum stroke, the upper material pressing plate (3) and the lower material pressing plate (4) are fixed, and the punch (9) moves downwards under the driving of the upper die (1) to finish 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 CN114472641A (en) | 2022-05-13 |
| CN114472641B true CN114472641B (en) | 2024-05-28 |
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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 |
Country Status (1)
| 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 |
|---|---|
| CN114472641A (en) | 2022-05-13 |
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