CN117718392A - Perimeter compensation structure and method for annular forging high-pressure leather bag bulging device - Google Patents
Perimeter compensation structure and method for annular forging high-pressure leather bag bulging device Download PDFInfo
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- CN117718392A CN117718392A CN202410174196.XA CN202410174196A CN117718392A CN 117718392 A CN117718392 A CN 117718392A CN 202410174196 A CN202410174196 A CN 202410174196A CN 117718392 A CN117718392 A CN 117718392A
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- leather bag
- pressure
- pressure leather
- annular forging
- bulging
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- 239000010985 leather Substances 0.000 title claims abstract description 72
- 238000005242 forging Methods 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 239000007788 liquid Substances 0.000 claims description 9
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 8
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 8
- 241001330002 Bambuseae Species 0.000 claims description 8
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 8
- 239000011425 bamboo Substances 0.000 claims description 8
- 239000004033 plastic Substances 0.000 claims description 4
- 238000005299 abrasion Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000009750 centrifugal casting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The invention belongs to the technical field of metallurgical equipment, and particularly relates to a perimeter compensation structure and a perimeter compensation method of a high-pressure leather bag bulging device of an annular forging. The circumference compensation structure of the annular forging high-pressure leather bag bulging device comprises a middle core barrel, wherein a sealing ring is sleeved on the outer side of the middle core barrel, a high-pressure leather bag is arranged on the outer side of the sealing ring, a high-pressure pipe is inserted into the side wall of the middle core barrel, and the outer end of the high-pressure pipe penetrates through the middle core barrel. According to the invention, the high-pressure leather bag pushes the sliding blocks outwards in the radial direction under the action of hydraulic pressure, the triangular wedge blocks with double inclined planes are arranged between the two sliding blocks, and when gaps appear between the sliding blocks, the triangular wedge blocks can completely fill the gaps, so that the high-pressure leather bag is protected; the outside of the high-pressure leather bag is provided with a layer of rubber, in the process of the outward movement diameter of the high-pressure leather bag becoming larger, the circumference is increased to enable the high-pressure leather bag, the sliding block and the triangular wedge block to generate friction, and the abrasion of the high-pressure leather bag is reduced due to the protection of the rubber layer, so that the service life of the high-pressure leather bag is prolonged.
Description
Technical Field
The invention belongs to the technical field of metallurgical equipment, and particularly relates to a perimeter compensation structure and a perimeter compensation method of a high-pressure leather bag bulging device of an annular forging.
Background
The annular forging is an annular object with external force applied to a metal blank (without a plate), and the annular object is formed by plastic deformation, so that the requirement of the annular forging is changed into a proper compressive force, the annular object is widely applied to industries such as aerospace, weapon ships, thermal power nuclear power, wind power generation and the like, with the rapid development of national economy, the requirements and the quality requirements of the annular forging are increased day by day, no matter what mode is adopted to produce the annular forging, such as a horse reaming, radial numerical control rolling, sectional welding, centrifugal casting, radial forging, additive manufacturing and the like, and the problem of residual stress or ellipse exists after the annular forging is produced.
The existing bulging method adopting the mode of high-pressure leather bags and dies is an innovative method, the high-pressure leather bags are driven by hydraulic pressure to push sliding blocks which are uniformly distributed along the axial direction outwards, the sliding blocks push the dies to bulge the annular forgings, the outer diameter of the leather bags can grow in the outward movement process of the high-pressure leather bags, the abrasion of the high-pressure leather bags can be increased, the sliding blocks move outwards in the radial direction, gaps are formed between the sliding blocks, and the production quality of the annular forgings is influenced.
Disclosure of Invention
Aiming at the problems, the invention aims to provide a perimeter compensation structure and a perimeter compensation method of a high-pressure leather bag bulging device of an annular forging piece, when the high-pressure leather bag pushes sliding blocks outwards in the radial direction under the action of hydraulic pressure, triangular wedge blocks with double inclined planes are arranged between the two sliding blocks, and when gaps appear between the sliding blocks, the triangular wedge blocks can completely fill the appearing gaps, so that the high-pressure leather bag is prevented from entering the gaps between the sliding blocks to be damaged, the high-pressure leather bag is further ensured to push the sliding blocks to bulge the annular forging piece, and the production quality is improved.
The technical scheme of the invention is as follows: the utility model provides a ring forging high pressure leather bag bulging device girth compensation structure, includes well core section of thick bamboo, the outside cover of well core section of thick bamboo is equipped with the sealing ring, the outside of sealing ring is equipped with high pressure leather bag, well core section of thick bamboo's lateral wall is pegged graft and is had the high pressure pipe, the outer end of high pressure pipe passes well core section of thick bamboo, and with sealing ring fixed connection, the outside parcel round cylindric rubber protection board of high pressure leather bag, the outside evenly distributed of rubber protection board has the slider, two place a triangle-shaped voussoir between the slider.
Preferably, the high-pressure leather bag and the sealing ring are combined into a closed annular inner cavity through lip-shaped matching.
Preferably, the sliding block is in a fan-shaped structure.
Preferably, the peripheries of the sliding blocks are provided with sector bulging die groups with the same number, and cylindrical annular forgings needing bulging are arranged on the peripheries of the bulging die groups.
The perimeter compensation method of the annular forging high-pressure leather bag bulging device uses the perimeter compensation structure of the annular forging high-pressure leather bag bulging device, and comprises the following steps:
s1: when the cylindrical annular forging is subjected to bulging, high-pressure liquid is filled into an inner hole P of a high-pressure pipe connected with a sealing ring, the high-pressure leather bag begins to bulge in the diameter direction under the action of the high-pressure liquid, the sliding block is pushed to move outwards, the sliding block also pushes the bulging die set to move outwards, the bulging die set applies acting force to the cylindrical annular forging, so that the cylindrical annular forging is bulged, the oval shape of the cylindrical annular forging is eliminated, and the residual stress of the cylindrical annular forging is eliminated by controlling the liquid pressure and the plastic deformation of the cylindrical annular forging;
s2: when the cylindrical annular forging is subjected to bulging, the high-pressure leather bag is expanded along the radial direction under the driving of hydraulic pressure, the perimeter of the high-pressure leather bag is increased to drive the sliding blocks to move outwards, gaps are formed between the sliding blocks, and the triangular wedge blocks synchronously move outwards to seal the gaps between the sliding blocks, so that the high-pressure leather bag is prevented from entering the gaps between the sliding blocks to be damaged.
The invention has the technical effects that: 1. according to the perimeter compensation structure of the annular forging high-pressure leather bag bulging device, the high-pressure leather bag pushes the sliding blocks outwards along the radial direction under the action of hydraulic pressure, the triangular wedge blocks with double inclined planes are arranged between the two sliding blocks, and when gaps appear between the sliding blocks, the triangular wedge blocks can completely fill the appearing gaps, so that the high-pressure leather bag is protected; 2. according to the invention, a layer of rubber is placed outside the high-pressure leather bag, in the process that the diameter of the high-pressure leather bag in the outward movement is increased, the circumference is increased to enable the high-pressure leather bag, the sliding block and the triangular wedge block to generate friction, and the abrasion of the high-pressure leather bag is reduced due to the protection of the rubber layer, so that the service life of the high-pressure leather bag is prolonged.
Further description will be made below with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of a perimeter compensation structure of a high-pressure bladder bulging device for an annular forging according to an embodiment of the invention.
Reference numerals: 1. a central core barrel; 2. a seal ring; 3. a high pressure bladder; 4. a high pressure pipe; 5. a rubber protective plate; 6. triangular wedge blocks; 7. a slide block; 8. bulging die set; 9. a cylindrical annular forging.
Detailed Description
Example 1
As shown in fig. 1, the circumference compensation structure of the annular forging high-pressure leather bag bulging device comprises a middle core barrel 1, wherein a sealing ring 2 is sleeved on the outer side of the middle core barrel 1, a high-pressure leather bag 3 is arranged on the outer side of the sealing ring 2, a high-pressure pipe 4 is inserted into the side wall of the middle core barrel 1, the outer end of the high-pressure pipe 4 penetrates through the middle core barrel 1 and is fixedly connected with the sealing ring 2, a circle of cylindrical rubber protection board 5 is wrapped outside the high-pressure leather bag 3, sliding blocks 7 are uniformly distributed on the outer side of the rubber protection board 5, and a triangular wedge block 6 is placed between the two sliding blocks 7.
In the actual use process, according to the perimeter compensation structure of the annular forging piece high-pressure leather bag bulging device, the high-pressure leather bag pushes the sliding blocks outwards along the radial direction under the action of hydraulic pressure, the triangular wedge blocks with double inclined planes are arranged between the two sliding blocks, and when gaps appear between the sliding blocks, the triangular wedge blocks can completely fill the appearing gaps, so that the high-pressure leather bag is protected; the outside of the high-pressure leather bag is provided with a layer of rubber, in the process of the outward movement diameter of the high-pressure leather bag becoming larger, the circumference is increased to enable the high-pressure leather bag, the sliding block and the triangular wedge block to generate friction, and the abrasion of the high-pressure leather bag is reduced due to the protection of the rubber layer, so that the service life of the high-pressure leather bag is prolonged.
Example 2
Preferably, on the basis of the embodiment 1, in this embodiment, preferably, a closed annular inner cavity is formed between the high-pressure leather bag 3 and the sealing ring 2 through lip-shaped matching.
In the actual use process, the high-pressure leather bag 3 and the sealing ring 2 are combined into a closed annular inner cavity through lip-shaped matching, so that a good buffering effect can be achieved, the cylindrical annular forging 9 can be inflated conveniently, the ellipticity of the cylindrical annular forging 9 is eliminated, and the residual stress is eliminated.
Example 3
Preferably, on the basis of embodiment 2, in this embodiment, the slider 7 is preferably in a fan-shaped structure.
In the actual use process, the sliding block 7 has a fan-shaped structure, so that the cylindrical annular forging 9 can be conveniently expanded, the ellipticity of the cylindrical annular forging 9 is eliminated, and the residual stress is eliminated.
Example 4
Preferably, on the basis of embodiment 1 or embodiment 3, in this embodiment, the same number of sector-shaped bulging die sets 8 are preferably arranged on the periphery of the slider 7, and a cylindrical annular forging 9 to be bulged is preferably placed on the periphery of the bulging die set 8.
In the practical use process, the periphery of the sliding block 7 is provided with the sector bulging die groups 8 with the same quantity, the periphery of the bulging die groups 8 is provided with the cylindrical annular forging 9 needing bulging, and the sliding block 7 pushes the bulging die groups 8 to finish bulging operation on the cylindrical annular forging 9.
Example 5
The perimeter compensation method of the annular forging high-pressure leather bag bulging device uses the perimeter compensation structure of the annular forging high-pressure leather bag bulging device, and comprises the following steps:
s1: when the cylindrical annular forging 9 is subjected to bulging, high-pressure liquid is filled into an inner hole P of the high-pressure pipe 4 connected with the sealing ring 2, the high-pressure leather bag 3 begins to bulge in the diameter direction under the action of the high-pressure liquid, the sliding block 7 is pushed to move outwards, the sliding block 7 pushes the bulging die set 8 to move outwards, the bulging die set 8 applies acting force to the cylindrical annular forging 9 again, so that the cylindrical annular forging 9 is bulged, the ellipse shape of the cylindrical annular forging 9 is eliminated, and the residual stress of the cylindrical annular forging 9 is eliminated by controlling the liquid pressure and the plastic deformation of the cylindrical annular forging 9;
s2: when the cylindrical annular forging 9 is subjected to bulging, the high-pressure leather bag 3 is expanded along the radial direction under the driving of hydraulic pressure, the perimeter of the high-pressure leather bag is increased to drive the sliding blocks 7 to move outwards, gaps are formed between the sliding blocks 7, and the triangular wedge blocks 6 synchronously move outwards to seal the gaps between the sliding blocks 7, so that the high-pressure leather bag 3 does not enter the gaps between the sliding blocks 7 to be damaged.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention.
Claims (5)
1. The utility model provides a ring forging high pressure leather bag bulging device girth compensation structure which characterized in that: including well core section of thick bamboo (1), the outside cover of well core section of thick bamboo (1) is equipped with sealing ring (2), the outside of sealing ring (2) is equipped with high-pressure leather bag (3), the lateral wall of well core section of thick bamboo (1) is pegged graft and is had high-pressure pipe (4), the outer end of high-pressure pipe (4) passes well core section of thick bamboo (1), and sealing ring (2) fixed connection, the outside parcel round cylindric rubber protection board (5) of high-pressure leather bag (3), the outside evenly distributed of rubber protection board (5) has slider (7), adjacent place a triangle-shaped voussoir (6) between slider (7).
2. The circumference compensation structure of the annular forging high-pressure leather bag bulging device according to claim 1, wherein: the high-pressure leather bag (3) and the sealing ring (2) are combined into a closed annular inner cavity through lip-shaped matching.
3. The circumference compensation structure of the annular forging high-pressure leather bag bulging device according to claim 1, wherein: the sliding block (7) is of a fan-shaped structure.
4. The circumference compensation structure of the annular forging high-pressure leather bag bulging device according to claim 1, wherein: the peripheries of the sliding blocks (7) are provided with sector bulging die groups (8) with the same number, and cylindrical annular forgings (9) needing bulging are arranged on the peripheries of the bulging die groups (8).
5. A circumferential length compensation method of a high-pressure leather bag bulging device for an annular forging, which is characterized in that the circumferential length compensation structure of the high-pressure leather bag bulging device for the annular forging is used, according to claim 1, and is characterized in that: the method comprises the following steps:
s1: when the cylindrical annular forging (9) is subjected to bulging, high-pressure liquid is filled into an inner hole P of a high-pressure pipe (4) connected with a sealing ring (2), a high-pressure leather bag (3) begins to bulge in the diameter direction under the action of the high-pressure liquid, a sliding block (7) is pushed to move outwards, the sliding block (7) also pushes a bulging die set (8) to move outwards, the bulging die set (8) applies acting force to the cylindrical annular forging (9) to enable the cylindrical annular forging (9) to bulge, so that the oval shape of the cylindrical annular forging (9) is eliminated, and the residual stress of the cylindrical annular forging (9) is eliminated by controlling the liquid pressure and the plastic deformation of the cylindrical annular forging (9);
s2: when the cylindrical annular forging (9) is subjected to bulging, the high-pressure leather bag (3) is expanded along the radial direction under the driving of hydraulic pressure, the perimeter of the high-pressure leather bag is increased, the sliding blocks (7) are driven to move outwards, gaps are formed between the sliding blocks (7), and the triangular wedge blocks (6) synchronously move outwards to seal the gaps between the sliding blocks (7), so that the high-pressure leather bag (3) does not enter the gaps between the sliding blocks (7) to be damaged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410174196.XA CN117718392A (en) | 2024-02-07 | 2024-02-07 | Perimeter compensation structure and method for annular forging high-pressure leather bag bulging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410174196.XA CN117718392A (en) | 2024-02-07 | 2024-02-07 | Perimeter compensation structure and method for annular forging high-pressure leather bag bulging device |
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| Publication Number | Publication Date |
|---|---|
| CN117718392A true CN117718392A (en) | 2024-03-19 |
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|---|---|---|---|
| CN202410174196.XA Pending CN117718392A (en) | 2024-02-07 | 2024-02-07 | Perimeter compensation structure and method for annular forging high-pressure leather bag bulging device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2999757B1 (en) * | 1998-09-09 | 2000-01-17 | 株式会社オプトン | Bulge processing method |
| JP2005000951A (en) * | 2003-06-11 | 2005-01-06 | Sumitomo Metal Ind Ltd | Hydraulic bulging method and device, and bulge article |
| CN207756680U (en) * | 2018-01-05 | 2018-08-24 | 彭莽 | A kind of large ring bulging mechanism |
| CN115921649A (en) * | 2022-09-07 | 2023-04-07 | 中国重型机械研究院股份公司 | Hydraulic bulging device for annular forging |
| CN116274588A (en) * | 2023-05-17 | 2023-06-23 | 中国重型机械研究院股份公司 | Device and method for eliminating residual stress of special-shaped die forging by high-pressure liquid |
| CN117340103A (en) * | 2023-10-30 | 2024-01-05 | 中国重型机械研究院股份公司 | Annular forging bulging device and bulging method for high-pressure leather bag driving die |
-
2024
- 2024-02-07 CN CN202410174196.XA patent/CN117718392A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2999757B1 (en) * | 1998-09-09 | 2000-01-17 | 株式会社オプトン | Bulge processing method |
| JP2005000951A (en) * | 2003-06-11 | 2005-01-06 | Sumitomo Metal Ind Ltd | Hydraulic bulging method and device, and bulge article |
| CN207756680U (en) * | 2018-01-05 | 2018-08-24 | 彭莽 | A kind of large ring bulging mechanism |
| CN115921649A (en) * | 2022-09-07 | 2023-04-07 | 中国重型机械研究院股份公司 | Hydraulic bulging device for annular forging |
| CN116274588A (en) * | 2023-05-17 | 2023-06-23 | 中国重型机械研究院股份公司 | Device and method for eliminating residual stress of special-shaped die forging by high-pressure liquid |
| CN117340103A (en) * | 2023-10-30 | 2024-01-05 | 中国重型机械研究院股份公司 | Annular forging bulging device and bulging method for high-pressure leather bag driving die |
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