CN118123201A - Device for automatic welding and assembling of special-shaped pipeline of aeroengine - Google Patents
Device for automatic welding and assembling of special-shaped pipeline of aeroengine Download PDFInfo
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- CN118123201A CN118123201A CN202410456490.XA CN202410456490A CN118123201A CN 118123201 A CN118123201 A CN 118123201A CN 202410456490 A CN202410456490 A CN 202410456490A CN 118123201 A CN118123201 A CN 118123201A
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- 238000003466 welding Methods 0.000 title claims abstract description 35
- 238000003825 pressing Methods 0.000 claims abstract description 10
- 230000001681 protective effect Effects 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 7
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 6
- 229910052721 tungsten Inorganic materials 0.000 claims description 6
- 239000010937 tungsten Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 4
- 210000001503 joint Anatomy 0.000 claims 2
- 238000013022 venting Methods 0.000 claims 2
- NGONBPOYDYSZDR-UHFFFAOYSA-N [Ar].[W] Chemical compound [Ar].[W] NGONBPOYDYSZDR-UHFFFAOYSA-N 0.000 claims 1
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 229910052786 argon Inorganic materials 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000005056 compaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The device for automatically welding and assembling the special-shaped pipeline of the aeroengine is suitable for welding a conduit and a pipe joint outside the aeroengine, the pipe joint is of a special-shaped structure and comprises a flexible pressing piece and a conical surface automatic centering component which are arranged on a pipe welding machine, wherein the conduit and the pipe joint are initially fixed, and then the pipe joints of different sizes are centered and fixed through the conical surface automatic centering component; the flexible pressing piece is used for fixing the pipe which has dimensional deviation and is matched with the shape of the pipe joint. The assembly of the pipe joints with different diameters is realized, the pipe joints and the pipelines are ensured to be coaxial, the assembly efficiency is improved, the cost is low, the processing efficiency is high, the development requirement of an engine is met, and the device has a high practical value.
Description
Technical Field
The invention relates to the technical field of aero-engine component manufacturing equipment, in particular to a device for automatic welding and assembling of an aero-engine special-shaped pipeline.
Background
The external pipeline parts of a certain engine are more, the pipeline structure is complex, most of pipelines are of a space curve type, and the pipelines are formed by connecting a conduit and a pipe joint through argon arc welding. The diameter of the guide pipe is inconsistent with the diameter of the pipe joint, the pipe joint and the pipe are not clamped in the welding process, the pipe joint and the pipe are easy to be concentric, parts are scrapped, the clampable part of the pipe joint is a conical surface, the types of the parts are various and the specifications are inconsistent, special clamping blocks are needed, the cost is high, and the processing efficiency of a pipeline is reduced.
Disclosure of Invention
In view of the above, the device for automatic welding and assembling of the aeroengine special-shaped pipeline solves the technical problem that the existing processing mode causes lower pipeline processing efficiency.
The device for automatically welding and assembling the special-shaped pipeline of the aeroengine is suitable for welding a conduit and a pipe joint outside the aeroengine, the pipe joint is of a special-shaped structure and comprises a flexible pressing piece and a conical surface automatic centering assembly which are arranged on a pipe welding machine, wherein the pipe joints of different sizes are centered and fixed through the conical surface automatic centering assembly after the conduit and the pipe joint are initially fixed; the flexible pressing piece is used for fixing the pipe which has dimensional deviation and is matched with the shape of the pipe joint.
Advantageous effects
Through the device of design abnormal shape pipeline automatic weld assembly, can realize the assembly of the coupling of different diameters, guarantee coupling and pipeline coaxial, promote assembly efficiency, with low costs, machining efficiency is high, satisfies the development demand of engine.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings that are 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 disclosure, and other drawings may be obtained according to these drawings without inventive effort to a person of ordinary skill in the art.
FIG. 1 is a front cross-sectional view of a method apparatus of the present invention;
Fig. 2 is a schematic view of the upper half ring provided with an arc-shaped section, wherein,
1. A screw; 2. a nut; 3. a protective cover; 4. conical centering blocks; 5. an upper half ring; 6. a tungsten electrode; 7. a machine head; 8. a conduit; 9. a pipe joint; 10. a lower half ring; 11. a lug; 12. an arc section.
Detailed Description
Embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.
Other advantages and effects of the present disclosure will become readily apparent to those skilled in the art from the following disclosure, which describes embodiments of the present disclosure by way of specific examples. It will be apparent that the described embodiments are merely some, but not all embodiments of the present disclosure. The disclosure may be embodied or practiced in other different specific embodiments, and details within the subject specification may be modified or changed from various points of view and applications without departing from the spirit of the disclosure. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict. All other embodiments, which can be made by one of ordinary skill in the art without inventive effort, based on the embodiments in this disclosure are intended to be within the scope of this disclosure.
It is noted that various aspects of the embodiments are described below within the scope of the following claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the present disclosure, one skilled in the art will appreciate that one aspect described herein may be implemented independently of any other aspect, and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number of the aspects set forth herein. In addition, such apparatus may be implemented and/or such methods practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.
It should also be noted that the illustrations provided in the following embodiments merely illustrate the basic concepts of the disclosure by way of illustration, and only the components related to the disclosure are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.
In addition, in the following description, specific details are provided in order to provide a thorough understanding of the examples. However, it will be understood by those skilled in the art that aspects may be practiced without these specific details.
Referring to the device for automatic welding and assembling of the special-shaped pipeline of the aero-engine shown in fig. 1, the device is suitable for welding a conduit 8 and a pipe joint 9 outside the aero-engine, and the pipe joint 9 is of a special-shaped structure. The pipe joint device comprises a flexible pressing piece and a conical surface automatic centering component which are arranged on a pipe welding machine, wherein after a guide pipe 8 and a pipe joint 9 are initially fixed, the pipe joint 9 with different sizes is centered and fixed through the conical surface automatic centering component;
The flexible pressing piece is used for fixing the pipe joint 9 with the shape of the pipe joint 9 in a shape adapting way 8 in a size deviation way, so that automatic welding assembly of the pipe joint 9 and pipes with different diameters of special-shaped pipelines of an aeroengine is realized, the number of the special clamping blocks is changed into a universal clamping mechanism, the assembly efficiency is improved, and the production cost is reduced, for example, the special clamping blocks are phi 5 caliber, however, the condition that the pipe 8 is large in size or small in size can occur in the production process deviation of the pipe 8, and therefore, the clamping force of the special clamping blocks is insufficient or cannot be clamped, so that the processing efficiency of the pipeline is reduced. The invention adopts flexible compaction, and adopts a conical surface automatic centering and spacing structure for the special-shaped pipe joint 9, thereby improving the assembly efficiency of parts, ensuring reliable compaction and strong universality, and being capable of automatically welding the pipe joints 9 with different diameters of special-shaped pipelines with pipes to realize rapid high-quality assembly.
As the embodiment provided by the scheme, the conical surface automatic centering component comprises a conical centering block 4, a screw 1, a nut 2 and a protective cover 3, wherein the conical centering block 4 is arranged towards one end of a pipe joint 9 in a tapered conical structure, and is partially embedded into a guide pipe 8 to ensure concentricity of a pipe of the pipe joint 9, the other end of the pipe joint is arranged in a cylindrical structure, and an exhaust groove is arranged on the surface of the conical structure, or the conical structure is arranged in a hollow structure and is provided with an exhaust hole, so that circulation of protective gas inside the pipe is promoted.
The protection cover 3 is hollow and one end opening structure is arranged, the opening end of the protection cover 3 is arranged on one side far away from the head 7 of the pipe welding machine in a sealing mode (the purpose of sealing is to ensure that the outer surface of a welding process is in argon inert gas protection atmosphere, an argon protection gas cabin is provided), a nut 2 is arranged on the screw 1, one end of the nut passes through the protection cover 3 and the conical centering block 4 to be fixedly connected with the side surface far away from the head 7 of the pipe welding machine, the screw 1 is arranged on the protection cover 3, supporting force and pressing force are provided for the conical centering block 4, wherein the central surfaces of the guide pipe 8 and the pipe joint 9 are adjusted through the screw 1 and the axis of the tungsten electrode 6 are on the same surface, the nut 2 is rotated to fix, namely, the tungsten electrode 6 is needed to be arranged at the center of a welding joint of a joint and a pipe during welding, in order to improve the assembly efficiency, the nut 2 is arranged on the screw 1, the assembly of parts is adjusted before each batch welding, the nut 2 is tightly pressed after the inner surface of the joint is aligned with the conical surface during the next batch assembly, the welding is directly carried out, the flexible compression is reliable, the special-shaped joint assembly is simple, the joint and the concentricity of the pipe is easy, and the machining efficiency is high.
Further, the nut 2 is installed on the screw 1 and is attached to the outer surface of the protective cover 3, and the length of each joint is inconsistent, so that the position of the screw 1 can be locked, the position of the conical surface is fixed, and the consistency of each assembly is achieved. The conical centering block 4 is arranged on the screw 1 and is contacted with the inner surface of the special-shaped joint, so that the joint and the pipe are ensured to be concentric in the assembly process, and the conical centering block is suitable for the assembly of special-shaped pipe joints 9 with different diameters and angles; a through groove with the diameter of 2mm multiplied by 2mm is processed on the conical surface of the conical centering block 4 and is used for the circulation of argon gas on the back surface of the welding line.
As a specific embodiment provided in the present case, the head 7 of the existing pipe welding machine includes a lower head set in a fixed manner and an upper head set in a rotating manner, so as to improve the clamping force on the pipe 8. The flexible pressing member comprises an upper half ring 5 and a lower half ring 10, the lower half ring 10 is detachably arranged on the lower machine head, the upper half ring 5 is detachably arranged on the upper machine head, the lower half ring 10 and the upper half ring 5 can fasten the guide pipe 8 after being butted, preferably, the upper half ring 5 and the lower half ring 10 are both made of copper or aluminum alloy materials and have certain deformability, or the inner diameters of the upper half ring 5 and the lower half ring 10 are smaller than the outer diameter of the guide pipe 8, the upper half ring 5 and the lower half ring 10 are equidirectional eccentric half rings, as shown in figure 2, the inner ring surfaces of the upper half ring 5 and the lower half ring 10 are respectively provided with a bulge at the corresponding position, the two sides of the protruding end head are respectively provided with an arc section 12, gaps are reserved between the arc section 12 and the inner annular surfaces of the upper semi-ring 5 and the lower semi-ring 10, the arc section 12 extends to the opening end of the upper semi-ring 5 or the lower semi-ring 10, a processing technology is that, for example, the upper semi-ring 5 is used, two symmetrical through grooves are processed at the position of 0.3mm in the direction of the inner annular surface of the upper semi-ring 5 towards the outer ring, namely, the processing of the through grooves can form a protruding part on the inner annular surface of the upper semi-ring 5, the connecting section of the protruding end head forms the arc section 12, one end of the arc section 12 is a free end and has certain elastic deformation, and when the catheter 8 is clamped, the clamping force on the catheter 8 is increased through the deformation of the arc section 12 on the two sides. In general, the inner diameters of the upper half ring 5 and the lower half ring 10 are equal to-0.3 mm of the theoretical dimension of the outer diameter of the pipe, in order to ensure the stability of clamping, the upper half ring 5 and the lower half ring 10 are equidirectional smaller half rings, the circle centers are offset by 3mm, the concentric rings realize the function of compensating the pipe 8 during clamping through the deformation clamping of the arc-shaped sections 12, and the unstable clamping phenomenon caused by the manufacturing tolerance of the outer diameter of the pipe can be eliminated, and/or the width of the arc-shaped sections 12 is larger than the thickness of the upper half ring 5 or the lower half ring 10, so that the contact area between the upper half ring 5 and the lower half ring 10 is increased, and the larger clamping force is provided.
As a specific embodiment provided in the present case, the corresponding positions of the outer circumferences of the upper half ring 5 and the lower half ring 10 are respectively provided with a lug 11, the corresponding positions of the upper machine head and the lower machine head are respectively provided with a groove, and the lug 11 is installed in the groove to respectively fix the upper half ring 5 and the lower half ring 10. When the pipelines of different types are processed, the upper half ring 5 and the lower half ring 10 which are matched with the conduit 8 in size can be replaced.
As the concrete implementation mode that the present case provided, the circumference of safety cover 3 corresponds is provided with inlet tube and wet return to keep away from the one end of aircraft nose 7 on conical centering piece 4 and set up the cooling groove, cooling groove one end and inlet tube intercommunication, the other end and wet return intercommunication are used for when using tungsten level argon arc welding to weld, cool down conical centering piece 4, avoid the heat of conical centering piece 4 to pile up, take away the heat of coupling, reduce the joint conical surface and warp, promote the integrality of conical surface.
The assembling device has the advantages of simple product structure, convenient operation, labor and time saving, higher reliability, solves the problems of concentricity and protection of automatic welding and assembling of special-shaped pipelines, realizes the assembling of the pipe joints 9 with different diameters on the device, ensures that the pipe joints 9 are coaxial with the pipelines, improves the assembling efficiency, has low cost and high processing efficiency, meets the development requirement of an engine, and has higher practical value.
The foregoing is merely specific embodiments of the disclosure, but the protection scope of the disclosure is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the disclosure are intended to be covered by the protection scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.
Claims (9)
1. The device for automatic welding and assembling of the special-shaped pipeline of the aeroengine is suitable for welding of a conduit and a pipe joint outside the aeroengine, and the pipe joint is of a special-shaped structure and is characterized by comprising a flexible pressing piece and a conical surface automatic centering component which are arranged on a pipe welding machine,
After the guide pipe and the pipe joint are initially fixed, the pipe joints with different sizes and models are centered and fixed through the conical surface automatic centering assembly;
the flexible pressing piece is used for fixing the pipe which has dimensional deviation and is matched with the shape of the pipe joint.
2. The apparatus of claim 1, wherein the cone self-centering assembly comprises cone-shaped centering blocks disposed in a tapered cone-shaped configuration toward one end of the pipe fitting and partially embedded within the conduit to ensure concentricity of the pipe fitting pipe and a cylindrical configuration at the other end.
3. The device according to claim 2, wherein the conical structure surface is provided with venting grooves or the conical structure is provided with venting holes for hollow structures.
4. The apparatus of claim 2, wherein the tube welder comprises a tungsten electrode, the cone self-centering assembly further comprises a screw, a nut, and a protective cover, the protective cover being hollow and configured with an open-ended structure, wherein,
The opening end of the protective cover is arranged on one side far away from the head of the pipe welding machine in a sealing way, the screw is provided with the nut, one end of the screw penetrates through the protective cover and is fixedly connected with the side of the conical centering block far away from the head of the pipe welding machine,
The central surfaces of the guide pipe and the pipe joint are adjusted by the screw rod and the axis of the tungsten electrode is on the same surface, and the nut is rotated to fix the guide pipe and the pipe joint.
5. The apparatus of claim 4 wherein the tube welder comprises a fixedly disposed lower head and a rotatably disposed upper head, the flexible hold down comprises an upper half ring and a lower half ring,
The lower semi-ring is detachably mounted on the lower machine head, the upper semi-ring is detachably mounted on the upper machine head, and the guide pipe can be fastened after the lower semi-ring and the upper semi-ring are in butt joint.
6. The device according to claim 5, wherein the outer circumferences of the upper half ring and the lower half ring are respectively provided with lugs, the upper machine head and the lower machine head are respectively provided with grooves at the corresponding positions, and the lugs are arranged in the grooves to fix the upper half ring and the lower half ring respectively.
7. The device of claim 5, wherein the upper half ring and the lower half ring are made of copper or aluminum alloy, or the inner diameter of the upper half ring and the lower half ring is smaller than the outer diameter of the guide pipe, and the upper half ring and the lower half ring are equidirectional eccentric half rings.
8. The device according to claim 7, wherein protrusions are respectively arranged on the inner annular surfaces of the upper semi-ring and the lower semi-ring and at corresponding positions, arc sections are respectively arranged on two sides of the protruding ends, gaps are reserved between the arc sections and the inner annular surfaces of the upper semi-ring and the lower semi-ring, the arc sections extend to the opening ends of the upper semi-ring or the lower semi-ring, and/or the width of the arc sections is larger than the thickness of the upper semi-ring or the lower semi-ring.
9. The device according to claim 5, wherein a water inlet pipe and a water return pipe are correspondingly arranged in the circumferential direction of the protective cover, a cooling groove is formed in one end, far away from the machine head, of the conical centering block, one end of the cooling groove is communicated with the water inlet pipe, the other end of the cooling groove is communicated with the water return pipe, and the cooling groove is used for cooling the conical centering block and preventing the conical surface of the conical centering block from being deformed by heat when welding by tungsten argon arc welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410456490.XA CN118123201A (en) | 2024-04-16 | 2024-04-16 | Device for automatic welding and assembling of special-shaped pipeline of aeroengine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410456490.XA CN118123201A (en) | 2024-04-16 | 2024-04-16 | Device for automatic welding and assembling of special-shaped pipeline of aeroengine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118123201A true CN118123201A (en) | 2024-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410456490.XA Pending CN118123201A (en) | 2024-04-16 | 2024-04-16 | Device for automatic welding and assembling of special-shaped pipeline of aeroengine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118123201A (en) |
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2024
- 2024-04-16 CN CN202410456490.XA patent/CN118123201A/en active Pending
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