CN112893678A - Manufacturing method of W-shaped multi-stack ring - Google Patents
Manufacturing method of W-shaped multi-stack ring Download PDFInfo
- Publication number
- CN112893678A CN112893678A CN202110135387.1A CN202110135387A CN112893678A CN 112893678 A CN112893678 A CN 112893678A CN 202110135387 A CN202110135387 A CN 202110135387A CN 112893678 A CN112893678 A CN 112893678A
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- China
- Prior art keywords
- ring
- shaped
- stack
- cutting die
- wave
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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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 31
- 238000003466 welding Methods 0.000 claims abstract description 6
- 238000005520 cutting process Methods 0.000 claims description 44
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 13
- 238000007789 sealing Methods 0.000 abstract description 12
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002699 waste material Substances 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
- B21D53/00—Making other particular articles
- B21D53/16—Making other particular articles rings, e.g. barrel hoops
- B21D53/20—Making other particular articles rings, e.g. barrel hoops washers, e.g. for sealing
-
- 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
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
- B21D28/14—Dies
Abstract
The invention discloses a manufacturing method of a W-shaped multi-stack ring, which comprises the following steps: (1) the method comprises the following steps that a W-shaped multi-stack ring to be manufactured is radially decomposed into a plurality of wave-shaped rings, and the wave-shaped rings are sequentially connected to form the W-shaped multi-stack ring; two ends of the wave-shaped ring are respectively provided with a straight surface, and the inner ring and the outer ring of the wave-shaped ring have height difference; (2) utilizing a corresponding wavy ring stamping forming die to stamp and form corresponding wavy rings until all the wavy rings are formed; (3) and welding the formed wave-shaped rings in sequence to form the W-shaped multi-stack ring. The W-shaped multi-stack ring manufactured by the manufacturing method of the W-shaped multi-stack ring is formed by welding a plurality of wave-shaped rings in sequence, has good flexibility, good elasticity and high strength, and can completely meet the design standard of the sealing ring required on the aircraft engine; the manufacturing method of the W-shaped multi-stack ring has simple process and low cost.
Description
Technical Field
The invention relates to the technical field of sealing devices, in particular to a manufacturing method of a W-shaped multi-stack ring.
Background
An aircraft engine is a highly complex and precise thermal machine, and is an engine for providing power required by flying of an aircraft. As the heart of an aircraft, it directly affects the performance, reliability and economy of the aircraft. Aircraft engines operate under extremely harsh conditions of high temperature, high pressure, high rotational speed, high load, and the like. In order to ensure reliable operation of the engine and its system, its sealing position must be reliable. The performance of the sealing ring of the aircraft engine directly relates to various problems such as flight safety, service life of components, maintenance frequency and the like. A good sealing ring is therefore critical to its overall engine impact.
The single wave-shaped ring or the multi-stack ring is mainly installed in a hole corresponding to the specification of the single wave-shaped ring or the multi-stack ring, the installation space is very small, and the single wave-shaped ring or the multi-stack ring has the functions of reducing noise and vibration. A high-temperature alloy W-shaped section thin-wall annular part, namely a W-shaped multi-stack ring, is a key part for mechanical sealing, and multi-pass rolling forming is one of the most effective methods for manufacturing the part. Due to the characteristics of complex section, large diameter and small section size of the thin-wall ring piece, the local plastic deformation of the thin-wall ring piece in the rolling forming process is uneven, if the uneven deformation is controlled improperly, the ring piece has the defects of cracking, out of round, wrinkling and the like, and the forming quality and the use characteristics of the ring piece are seriously influenced.
Disclosure of Invention
The invention aims to provide a method for manufacturing a W-shaped multi-stack ring, which solves the problems in the prior art, improves the mechanical performance of the W-shaped multi-stack ring and reduces the manufacturing cost.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a manufacturing method of a W-shaped multi-stack ring, which comprises the following steps:
(1) decomposing a W-shaped multi-stack ring to be manufactured into a plurality of wave-shaped rings along the radial direction, wherein the wave-shaped rings are sequentially connected to form the W-shaped multi-stack ring; two ends of the wave-shaped ring are respectively provided with a straight surface, and the inner ring and the outer ring of the wave-shaped ring have a height difference;
(2) utilizing a corresponding wavy ring stamping forming die to stamp and form the corresponding wavy rings until each wavy ring is formed; the corrugated ring stamping forming die comprises an upper die base and a lower die base, wherein a rubber fixing plate is fixedly arranged at the bottom end of the upper die base, a cutting die and a cutting die fixing plate are fixedly arranged at the top end of the lower die base, the cutting die is arranged in the cutting die fixing plate in a penetrating manner, an ejector rod is arranged in the cutting die in a penetrating manner, the ejector rod can extend out of the top surface of the cutting die, a forming ring is arranged at the top end of the cutting die, the top surface of the forming ring is a corrugated curved surface matched with the corresponding section shape of the corrugated ring, and a rubber layer facing the forming ring is embedded in the bottom surface of the rubber fixing plate;
(3) and welding the formed wave-shaped rings in sequence to form the W-shaped multi-stack ring.
Preferably, the cutting die is coaxial with the ejector rod.
Preferably, one end of the forming ring close to the cutter die fixing plate is lower than the top end of the cutter die fixing plate.
Preferably, the top end of the cutting die fixing plate is close to the edge of the cutting die and is provided with a first annular groove, and the top end of the ejector rod is close to the edge of the cutting die and is provided with a second annular groove.
Preferably, the die further comprises a driving device capable of driving the upper die holder to ascend and descend.
Preferably, the device further comprises a hydraulic cylinder capable of driving the top rod to move in the vertical direction.
Compared with the prior art, the invention has the following technical effects:
the manufacturing method of the W-shaped multi-stack ring improves the mechanical property of the W-shaped multi-stack ring and reduces the manufacturing cost. The cross section of the W-shaped multi-stack ring manufactured by the manufacturing method of the W-shaped multi-stack ring is W-shaped, the W-shaped structure not only effectively increases the elasticity of the sealing ring, but also fully ensures the reliable work of the system work because the sealing effect of the W-shaped multi-stack ring is increased due to the high-temperature and high-pressure state of the aircraft engine in normal operation; the W-shaped multi-stack ring manufactured by the manufacturing method of the W-shaped multi-stack ring is formed by welding a plurality of wave-shaped rings in sequence, has good flexibility, good elasticity and high strength, and can completely meet the design standard of the sealing ring required on the aircraft engine; the manufacturing method of the W-shaped multi-stack ring has simple process and low cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a corrugated ring stamping and forming die in the W-shaped multi-stack ring manufacturing method of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic structural view of another embodiment of a cutting die in a stamping die for forming a corrugated ring in the method for manufacturing a W-shaped multi-stack ring according to the present invention;
FIG. 4 is a schematic structural diagram of a W-shaped multi-ring formed by the method for manufacturing the W-shaped multi-ring according to the present invention;
FIG. 5 is a schematic cross-sectional view of the W-shaped multi-stack ring of FIG. 4;
FIG. 6 is a schematic structural diagram of a single waveform ring in the W-shaped multi-stack ring shown in FIG. 4;
FIG. 7 is a schematic diagram of a first multi-waveform ring in the W-shaped multi-stack shown in FIG. 5;
FIG. 8 is a schematic diagram of a second multi-waveform ring in the W-shaped multi-stack shown in FIG. 5;
wherein: 100. a wave-shaped ring stamping forming die; 200. a W-shaped multi-stack ring; 1. a lower die holder; 2. a cutting die fixing plate; 3. cutting the die; 4. a top rod; 5. a rubber layer; 6. a rubber fixing plate; 7. an upper die holder; 8. a wave-shaped ring; 9. a wave-shaped curved surface; 10. a first ring groove; 11. a second ring groove; 201. a single waveform ring; 202. a first multi-waveform ring; 203. a second multi-waveform ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
The invention aims to provide a method for manufacturing a W-shaped multi-stack ring, which solves the problems in the prior art, improves the mechanical performance of the W-shaped multi-stack ring and reduces the manufacturing cost.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1 to 8: the embodiment provides a manufacturing method of a W-shaped multi-stack ring, which comprises the following steps:
(1) the W-shaped multi-stack ring 200 to be manufactured is radially decomposed into a plurality of wave-shaped rings 8, and the wave-shaped rings 8 are sequentially connected to form the W-shaped multi-stack ring 200; two ends of the wave-shaped ring 8 are respectively provided with a straight surface, and the inner ring and the outer ring of the wave-shaped ring 8 have a height difference; referring to fig. 4 to 8, the W-shaped multi-stack ring 200 manufactured in the present embodiment can be decomposed into 20 waveform rings 8, and among the 20 waveform rings 8, three waveform rings 8, 2 single waveform rings 201, 9 first multi-waveform rings 202, and 9 second multi-waveform rings 203, respectively;
(2) utilizing a corresponding wave-shaped ring stamping forming die 100 to stamp and form corresponding wave-shaped rings 8 until each wave-shaped ring 8 is formed;
(3) the formed wave rings 8 are welded in sequence, wherein the flat faces of the end portions of the adjacent two wave rings 8 are welded and connected, thus making a W-shaped multi-stack ring 200.
The waveform ring stamping and forming die 100 in the embodiment comprises an upper die base 7 and a lower die base 1, wherein a rubber fixing plate 6 is fixedly arranged at the bottom end of the upper die base 7, a cutting die 3 and a cutting die fixing plate 2 are fixedly arranged at the top end of the lower die base 1, the cutting die 3 is arranged in the cutting die fixing plate 2 in a penetrating mode, an ejector rod 4 is arranged in the cutting die 3 in a penetrating mode, and the cutting die 3, the ejector rod 4 and the cutting die fixing plate 2 are coaxial.
The die 100 for stamping and forming the corrugated ring of the present embodiment further includes a driving device capable of driving the upper die holder 7 to ascend and descend, and a hydraulic cylinder capable of driving the ejector rod 4 to move in the vertical direction. The ejector rod 4 can move in the vertical direction under the driving of the hydraulic cylinder, the ejector rod 4 can extend out of the top surface of the cutting die 3, the top end of the cutting die 3 is a forming ring, the top surface of the forming ring is a waveform curved surface 9 matched with the cross section shape of the waveform ring 8, and a rubber layer 5 facing the forming ring is embedded in the bottom surface of the rubber fixing plate 66. One end of the forming ring close to the cutting die fixing plate 2 is lower than the top end of the cutting die fixing plate 2. The highest point of the multi-waveform curved surface 9 is equal to the height of the ejector rod 4, and the highest point of the multi-waveform curved surface 9 is 0.1mm lower than the upper surface of the cutter die fixing plate 2; the radius of the rubber layer 5 is slightly larger than that of the top surface of the cutter die fixing plate 2.
It should be noted that the top end of the cutting die fixing plate 2 is provided with a first ring groove 10 close to the edge of the cutting die 3, and the top end of the ejector rod 4 is provided with a second ring groove 11 close to the edge of the cutting die 3; and the edges of the inner side and the outer side of the forming ring at the top end of the cutting die 3 are very sharp, so that no burrs exist on the edges of the formed parts of the multi-waveform ring 8, and the processing procedures are reduced.
The process of manufacturing the wave ring 8 using the wave ring press forming die 100 in the present embodiment is as follows:
the thin plate is flatly placed on the top surface of the cutting die fixing plate 2 and is formed by one-time stamping through driving the upper die base 7 to move downwards; the first ring groove 10 and the second ring groove 11 are used for cutting off the inner ring and the outer ring of the multi-wave-shaped ring 8; the middle waste material is ejected after the ejector rod 4 cuts off the inner ring.
The cross section of the W-shaped multi-stack ring 200 manufactured by the manufacturing method of the W-shaped multi-stack ring is W-shaped, the W-shaped structure not only effectively increases the elasticity of the sealing ring, but also fully ensures the reliable work of the system work because the sealing effect of the W-shaped multi-stack ring 200 is increased due to the high-temperature and high-pressure state of the aircraft engine in normal operation; the W-shaped multi-stack ring 200 manufactured by the manufacturing method of the W-shaped multi-stack ring is formed by welding a plurality of wave-shaped rings 8 in sequence, has good flexibility, good elasticity and high strength, and can completely meet the design standard of the sealing ring required on the aircraft engine; the manufacturing method of the W-shaped multi-stack ring has simple process and low cost.
In the description of the present invention, it should be noted that the terms "top", "bottom", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (6)
1. A method of manufacturing a W-shaped multi-stack ring, comprising the steps of:
(1) decomposing a W-shaped multi-stack ring to be manufactured into a plurality of wave-shaped rings along the radial direction, wherein the wave-shaped rings are sequentially connected to form the W-shaped multi-stack ring; two ends of the wave-shaped ring are respectively provided with a straight surface, and the inner ring and the outer ring of the wave-shaped ring have a height difference;
(2) utilizing a corresponding wavy ring stamping forming die to stamp and form the corresponding wavy rings until each wavy ring is formed; the corrugated ring stamping forming die comprises an upper die base and a lower die base, wherein a rubber fixing plate is fixedly arranged at the bottom end of the upper die base, a cutting die and a cutting die fixing plate are fixedly arranged at the top end of the lower die base, the cutting die is arranged in the cutting die fixing plate in a penetrating manner, an ejector rod is arranged in the cutting die in a penetrating manner, the ejector rod can extend out of the top surface of the cutting die, a forming ring is arranged at the top end of the cutting die, the top surface of the forming ring is a corrugated curved surface matched with the corresponding section shape of the corrugated ring, and a rubber layer facing the forming ring is embedded in the bottom surface of the rubber fixing plate;
(3) and welding the formed wave-shaped rings in sequence to form the W-shaped multi-stack ring.
2. The method of manufacturing a W-shaped multi-stack ring according to claim 1, wherein: the cutting die is coaxial with the ejector rod.
3. The method of manufacturing a W-shaped multi-stack ring according to claim 1, wherein: one end of the forming ring close to the cutting die fixing plate is lower than the top end of the cutting die fixing plate.
4. The method of manufacturing a W-shaped multi-stack ring according to claim 1, wherein: the top of cutting die fixed plate is close to the edge of cutting die is provided with first annular, the top of ejector pin is close to the edge of cutting die is provided with the second annular.
5. The method of manufacturing a W-shaped multi-stack ring according to claim 1, wherein: the die further comprises a driving device capable of driving the upper die holder to lift.
6. The method of manufacturing a W-shaped multi-stack ring according to claim 1, wherein: the device also comprises a hydraulic cylinder which can drive the ejector rod to move in the vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110135387.1A CN112893678A (en) | 2021-02-01 | 2021-02-01 | Manufacturing method of W-shaped multi-stack ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110135387.1A CN112893678A (en) | 2021-02-01 | 2021-02-01 | Manufacturing method of W-shaped multi-stack ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112893678A true CN112893678A (en) | 2021-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110135387.1A Pending CN112893678A (en) | 2021-02-01 | 2021-02-01 | Manufacturing method of W-shaped multi-stack ring |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1073105A (en) * | 1965-02-20 | 1967-06-21 | Danfoss As | Corrugated tubes and methods for forming the same |
| US5639097A (en) * | 1994-12-09 | 1997-06-17 | Eg&G Sealol, Inc. | Gas seal "O" ring holder |
| JPH1019001A (en) * | 1996-07-04 | 1998-01-20 | Nhk Spring Co Ltd | Metal bellows accumulator |
| CN2324364Y (en) * | 1998-01-14 | 1999-06-16 | 中国航天工业总公司第十一研究所 | High fatigue life welding corrugated pipe |
| TW587966B (en) * | 2003-02-27 | 2004-05-21 | Metal Ind Res & Dev Ct | Method of making corrugated tubes and device for connecting and forming film assembly of the same |
| US20090188897A1 (en) * | 2005-10-31 | 2009-07-30 | Philippe Margairaz | Method of Making a Metal Bellows Assembly Having an Intermediate Plate |
| CN102962317A (en) * | 2012-12-05 | 2013-03-13 | 东莞市华汇精密机械有限公司 | Wave plate falling device of welded metal corrugated pipe |
| CN103753038A (en) * | 2013-12-26 | 2014-04-30 | 东莞市华汇精密机械有限公司 | Welding process and application device of corrugated pipe assembly |
| CN104001802A (en) * | 2014-05-19 | 2014-08-27 | 新乡豫新精密装备有限公司 | Forming die of annular corrugated sheet of oil and mist separator |
| CN111842524A (en) * | 2020-08-05 | 2020-10-30 | 南昌航空大学 | Extrusion forming die and method for parts with grooves |
-
2021
- 2021-02-01 CN CN202110135387.1A patent/CN112893678A/en active Pending
Patent Citations (10)
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|---|---|---|---|---|
| GB1073105A (en) * | 1965-02-20 | 1967-06-21 | Danfoss As | Corrugated tubes and methods for forming the same |
| US5639097A (en) * | 1994-12-09 | 1997-06-17 | Eg&G Sealol, Inc. | Gas seal "O" ring holder |
| JPH1019001A (en) * | 1996-07-04 | 1998-01-20 | Nhk Spring Co Ltd | Metal bellows accumulator |
| CN2324364Y (en) * | 1998-01-14 | 1999-06-16 | 中国航天工业总公司第十一研究所 | High fatigue life welding corrugated pipe |
| TW587966B (en) * | 2003-02-27 | 2004-05-21 | Metal Ind Res & Dev Ct | Method of making corrugated tubes and device for connecting and forming film assembly of the same |
| US20090188897A1 (en) * | 2005-10-31 | 2009-07-30 | Philippe Margairaz | Method of Making a Metal Bellows Assembly Having an Intermediate Plate |
| CN102962317A (en) * | 2012-12-05 | 2013-03-13 | 东莞市华汇精密机械有限公司 | Wave plate falling device of welded metal corrugated pipe |
| CN103753038A (en) * | 2013-12-26 | 2014-04-30 | 东莞市华汇精密机械有限公司 | Welding process and application device of corrugated pipe assembly |
| CN104001802A (en) * | 2014-05-19 | 2014-08-27 | 新乡豫新精密装备有限公司 | Forming die of annular corrugated sheet of oil and mist separator |
| CN111842524A (en) * | 2020-08-05 | 2020-10-30 | 南昌航空大学 | Extrusion forming die and method for parts with grooves |
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| Title |
|---|
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Application publication date: 20210604 |
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