CN113927126A - Tool for plugging blade fabrication hole and plugging method thereof - Google Patents
Tool for plugging blade fabrication hole and plugging method thereof Download PDFInfo
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- CN113927126A CN113927126A CN202111550627.0A CN202111550627A CN113927126A CN 113927126 A CN113927126 A CN 113927126A CN 202111550627 A CN202111550627 A CN 202111550627A CN 113927126 A CN113927126 A CN 113927126A
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- inner rod
- plugging
- chuck
- blade
- outer barrel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/008—Soldering within a furnace
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention discloses a tool for plugging a blade fabrication hole, which comprises an outer barrel and an inner rod arranged in the outer barrel in a sliding manner, wherein the upper end of the inner rod is provided with an elastic pressing structure, and the elastic pressing structure acts on the inner rod and the outer barrel to enable the inner rod and the outer barrel to elastically stretch in the axial direction; the lower end of the inner rod is provided with a chuck for sleeving and clamping the plugging block, the diameter of the end surface of the upper end of the chuck is smaller than that of the end surface of the lower end of the chuck, and the diameter of the end surface of the lower end of the chuck is larger than that of the end surface of the lower end of the outer barrel; when the inner rod moves downwards to the upper end of the chuck and extends out of the outer cylinder, the lower end of the chuck expands outwards in the circumferential direction to loosen the plugging block; when the inner rod moves upwards to the upper end of the chuck and enters the outer barrel, the lower end of the chuck is extruded by the barrel wall of the outer barrel to contract inwards in the circumferential direction so as to clamp the plugging block. According to the invention, the picking, placing and clamping of the blocking block at the lower end of the inner rod can be controlled by pressing and loosening the upper end of the inner rod downwards, the clamping is stable and is not easy to fall off, the operation is convenient and fast, and the mounting accuracy and the mounting efficiency of the blocking block at the process hole can be obviously improved.
Description
Technical Field
The invention relates to the technical field of machining of turbine engine workpieces, in particular to a tool for plugging a blade process hole and a plugging method thereof.
Background
Turbine blades are important components of the turbine section of a gas turbine engine. The blades rotating at high speed are responsible for drawing high-temperature and high-pressure airflow into the combustor to maintain the operation of the engine. In order to ensure stable and long-term operation in extreme environments of high temperature and high pressure, turbine blades are often forged from high temperature alloys and are cooled in different ways, such as internal air flow cooling, boundary layer cooling, or thermal barrier coatings protecting the blades, to ensure operational reliability. The air film cooling is an internal airflow cooling technology applied to turbine blades, and is mainly characterized in that a large number of air film holes are designed at the front edge of the turbine blade, the profile of a blade body and other parts, the hole diameter is generally 0.2-0.8mm, the space angle is complex, high-pressure cold air is extracted from the last stage of a compressor and conveyed to an internal channel of the blade, the cold air strengthens convection heat exchange in the channel to take away part of heat, meanwhile, part of cold air is sprayed out from the air film holes on the wall of the blade, the cold air is bent downstream under the action of the main flow and the fluid coanda effect and is adhered to the vicinity of the wall surface of the blade to form a cold air film with lower temperature, the wall surface is isolated from high-temperature gas, and part of radiation heat of the high-temperature gas or bright flame to the wall surface is taken away, so that a good protection effect is achieved, and the aim of preventing the blade from being burnt by the high-temperature gas is fulfilled.
In order to ensure the air flow circulation, a hollow inner cavity with a complex structure is formed inside the turbine blade to be used as an air channel, but a process hole is designed in the hollow inner cavity of the blade when the hollow inner cavity of the blade is cast, so that the rigidity of a core in the casting process is improved, and the core is prevented from being deformed when high-temperature metal is cast. However, the process holes are only formed for casting conveniently, and the process holes need to be sealed after the turbine blade is cast, so that the air flow can be ensured to flow in the inner cavity of the blade according to the designed channel.
In the prior art, a sealing block is usually smeared with brazing materials, tweezers with the size smaller than the conventional size in the market are used for clamping the sealing block, the sealing block is placed in a process hole through a vent hole at the bottom of a turbine blade, and then the sealing block enters a furnace for welding, so that the sealing block is completely fixed in the process hole. But because the diameter of plugging piece is too little, drops when pressing from both sides and getting easily, and turbine blade's air vent size is very little and the inner space is complicated moreover, and tweezers are very difficult to go deep into inside accurately, can only rely on assembler's experience operation very many times to place the plugging piece successfully, and the position of placing often is not very accurate moreover, and not only inefficiency, and the shutoff quality is not high moreover.
Disclosure of Invention
In view of the above, there is a need to provide a tool for plugging a fabrication hole of a blade and a plugging method thereof, so as to quickly and accurately complete the installation of a plugging block at the fabrication hole.
The invention is realized by the following technical scheme:
a tool for plugging a blade fabrication hole comprises an outer barrel and an inner rod arranged in the outer barrel in a sliding mode, wherein an elastic pressing structure is arranged at the upper end of the inner rod and acts on the inner rod and the outer barrel to enable the inner rod and the outer barrel to elastically stretch in the axial direction; the lower end of the inner rod is provided with a chuck for sleeving and clamping the plugging block, the diameter of the end surface of the upper end of the chuck is smaller than that of the end surface of the lower end of the chuck, and the diameter of the end surface of the lower end of the chuck is larger than that of the end surface of the lower end of the outer barrel; when the inner rod moves downwards to the upper end of the chuck and extends out of the outer cylinder, the lower end of the chuck expands outwards in the circumferential direction to loosen the plugging block; when the inner rod moves upwards to the upper end of the chuck and enters the outer barrel, the lower end of the chuck is extruded by the barrel wall of the outer barrel to contract inwards in the circumferential direction so as to clamp the plugging block.
In one embodiment, the chuck is an annular sleeve made of elastic material, and the annular sleeve is in a circular truncated cone shape or a truncated pyramid shape.
In one embodiment, the chuck comprises at least two clamping pieces which are equally divided in the circumferential direction, the upper ends of the clamping pieces are fixedly connected with the inner rod, and the lower ends of the adjacent clamping pieces are mutually separated in the circumferential direction.
In one embodiment, the elastic pressing structure comprises a pressing head and a spring, the pressing head is fixedly arranged at the upper end of the inner rod, the spring is sleeved on the inner rod, the upper end of the spring abuts against the lower end face of the pressing head, and the lower end of the spring abuts against the upper end face of the outer cylinder.
In one embodiment, the inner rod is a hollow tubular structure, and the upper end of the inner rod is provided with a through hole for injecting the brazing flux.
In one embodiment, the inner wall of the outer barrel is provided with a plurality of guide blocks, the guide blocks are annularly arranged along the circumferential direction of the inner wall of the outer barrel and are distributed at intervals along the axial direction of the outer barrel, and the guide inner rod is coaxial with the outer barrel when moving up and down in the outer barrel.
In one embodiment, the outer cylinder is a hard structure made of a polymer material, and the hardness of the hard structure is less than that of the turbine blade.
A blade fabrication hole plugging method adopts the blade fabrication hole plugging tool clamping plugging block of any embodiment, and comprises the following steps:
s1, pressing the inner rod downwards to make the inner rod move downwards to the upper end of the chuck to extend out of the outer cylinder, and placing a plugging block at the chuck; stopping pressing the inner rod to enable the inner rod to move upwards to the upper end of the chuck to enter the outer barrel, and enabling the lower end of the chuck to be extruded by the wall of the outer barrel to contract inwards in the circumferential direction so as to clamp the plugging block;
s2, inserting a blade fabrication hole plugging tool into the turbine blade, aligning the lower end of the inner cylinder with the fabrication hole, pressing the inner rod downwards to enable the inner rod to move downwards to the upper end of the chuck to extend out of the outer cylinder so as to loosen the plugging block, and correspondingly placing the plugging block in the fabrication hole;
s3, continuously pressing the inner rod downwards, and pressing the blocking block downwards against the process hole through the inner rod to enable the blocking block and the process hole to generate relative pre-tightening force;
s4, taking out the tool for plugging the blade fabrication hole, injecting brazing flux into the fabrication hole and coating the brazing flux on the plugging block and around the fabrication hole;
and S5, feeding the turbine blade with the plugging block into a brazing furnace for sintering, and completing plugging of the blade process hole.
Compared with the prior art, the technical scheme of the invention at least has the following advantages and beneficial effects:
the clamping device is reasonable in design and simple in structure, the picking and placing clamping of the blocking block at the lower end of the inner rod can be controlled by pressing and loosening the upper end of the inner rod downwards, the clamping is stable and is not easy to drop, the operation is convenient and fast, and the mounting accuracy and the mounting efficiency of the blocking block at the process hole are improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural diagram of a tool for plugging a fabrication hole of a blade according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a tool for plugging a blade process hole with an annular sleeve as a chuck according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a blade tooling hole plugging tool with a clip as a collet according to an embodiment of the present invention;
FIG. 4 is a schematic view of the internal structure of a turbine blade according to an embodiment of the present invention.
Icon: 1-outer cylinder, 11-guide block, 2-inner rod, 21-through hole, 3-elastic pressing structure, 31-pressing head, 32-spring, 4-clamping head, 41-annular sleeve, 42-clamping piece, 5-blocking block, 6-turbine blade, and 61-fabrication hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, a tool for plugging a blade fabrication hole and a plugging method thereof will be described more clearly and completely with reference to the accompanying drawings in the embodiments of the present invention. The preferred embodiments of the blade process hole plugging tool and method are shown in the drawings, however, the blade process hole plugging tool and method may be embodied in many different forms and are not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure of the blade process hole plugging tool and method is more thorough and complete.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like, when used in reference to an orientation or positional relationship indicated in the drawings, or as otherwise customary for use in the practice of the invention, are used merely for convenience in describing and simplifying the invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the invention.
In the description of the present invention, it should be further noted that the terms "disposed," "mounted," "connected," and "connected" used herein should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 and 4, an embodiment of the invention provides a tool for plugging a blade fabrication hole, which comprises an outer cylinder 1 and an inner rod 2 arranged inside the outer cylinder 1 in a sliding manner, wherein an elastic pressing structure 3 is arranged at the upper end of the inner rod 2, and the elastic pressing structure 3 acts on the inner rod 2 and the outer cylinder 1 to enable the inner rod 2 and the outer cylinder 1 to elastically stretch in the axial direction; the lower end of the inner rod 2 is provided with a chuck 4 for sleeving and clamping a plugging block 5, the diameter of the end surface of the upper end of the chuck 4 is smaller than that of the end surface of the lower end of the chuck 4, and the diameter of the end surface of the upper end of the chuck 4 is smaller than that of the end surface of the lower end of the outer barrel 1, so that the upper end of the chuck 4 can enter the lower end of the outer barrel 1; the diameter of the end face of the lower end of the chuck 4 is larger than that of the end face of the lower end of the outer cylinder 1; when the inner rod 2 moves upwards to the upper end of the chuck 4 and enters the outer cylinder 1, the diameter of the end surface of the lower end of the chuck 4 is larger than that of the end surface of the lower end of the outer cylinder 1, and the lower end of the chuck 4 is extruded by the inner cylinder wall of the outer cylinder 1, so that the inner rod contracts inwards from the circumferential direction; when the inner rod 2 moves downwards until the upper end of the chuck 4 extends out of the outer cylinder 1, the lower end of the chuck 4 is not extruded by the inner cylinder wall of the outer cylinder 1 any more, so that the chuck is expanded and loosened outwards in the circumferential direction; the stable clamping of the plugging block 5 can be realized by utilizing the characteristic that the lower end of the chuck 4 contracts inwards in the circumferential direction, and the plugging block 5 can be aligned to the technical hole 61 and then loosened to accurately place the plugging block 5 in the technical hole 61 by utilizing the characteristic that the lower end of the chuck 4 expands outwards in the circumferential direction.
Specifically, as shown in fig. 1 and 2, the chuck 4 may be an annular sleeve 41 made of an elastic material, the elastic material may be a rubber material, and the annular sleeve 41 is in a circular truncated cone shape or a truncated pyramid shape, when the inner rod 2 moves upward to the upper end of the annular sleeve 41 and enters the outer cylinder 1, along with the continuous movement of the inner rod 2, the lower end of the annular sleeve 41 is extruded by the inner cylinder wall of the outer cylinder 1, thereby clamping the plugging block 5; when the inner rod 2 moves downwards to the upper end of the chuck 4 and extends out of the outer cylinder 1, the lower end of the annular sleeve 41 is restored to the original state based on elastic deformation, so that the clamping of the blocking block 5 is released.
In other embodiments, as shown in fig. 3, the collet 4 may also be at least two, preferably three, clamping pieces 42 equally divided in the circumferential direction, the upper ends of the clamping pieces 42 are fixedly connected with the inner rod 2, the lower ends of the adjacent clamping pieces 42 are separated from each other in the circumferential direction, and the above-mentioned effects of stably clamping and releasing the clamping of the plugging block 5 can also be achieved by the action of the cylindrical wall of the outer cylinder 1 on the clamping pieces 42.
More specifically, as shown in fig. 1 to 3, the elastic pressing structure 3 includes a pressing head 31 and a spring 32, the pressing head 31 is fixedly disposed at the upper end of the inner rod 2, the spring 32 is sleeved on the inner rod 2, the upper end of the spring 32 abuts against the lower end surface of the pressing head 31, the lower end of the spring 32 abuts against the upper end surface of the outer cylinder 1, at this time, the spring 32 is in a compressed state, applies elastic stress to the pressing head 31 and the outer cylinder 1, and the elastic telescopic movement of the inner rod 2 and the outer cylinder 1 in the axial direction can be realized by pressing the pressing head 31. It is understood that the pressing head 31 for clamping the upper end of the spring 32 can be disposed on the upper portion of the inner rod 2 instead of the end portion, as long as the spring 32 can be clamped on the upper end surface of the outer cylinder 1, so that the axial elastic stress applied by the spring 32 acts on the outer cylinder 1 and the inner rod 2.
Furthermore, as shown in fig. 2, the inner rod 2 may also be a hollow tubular structure, the upper end of the inner rod 2 is provided with a through hole 21 for injecting a brazing flux, and the brazing flux is injected into the inner rod 2 from the through hole 21, so that the brazing flux can be accurately injected to the surface of the plugging block 5 from the inside of the turbine blade 6.
Further, as shown in fig. 2, the inner wall of the outer cylinder 1 is further provided with a plurality of guide blocks 11, the guide blocks 11 are annularly arranged along the circumferential direction of the inner wall of the outer cylinder 1 and are axially distributed along the outer cylinder 1 at intervals, and the horizontal position of the inner rod 2 inside the outer cylinder 1 can be limited through the guide blocks 11, so that the inner rod 2 is coaxial with the outer cylinder 1 when moving up and down inside the outer cylinder 1.
Further, as shown in fig. 1, the outer cylinder 1 is a hard structure made of a polymer material, and the hardness of the hard structure is less than that of the turbine blade 6, so that the inner surface structure of the turbine blade 6 is prevented from being scratched when the outer cylinder 1 extends into the turbine blade 6.
Based on the tool for plugging the blade fabrication hole provided by the above embodiment, the present invention further provides a method for plugging the blade fabrication hole 61, which can clamp the plugging block 5 by using the tool for plugging the blade fabrication hole of any one of the above embodiments to complete the plugging of the blade fabrication hole 61, and specifically includes the following steps:
s1, pressing the inner rod 2 downwards to enable the inner rod 2 to move downwards until the upper end of the chuck 4 extends out of the outer cylinder 1, and placing the plugging block 5 at the chuck 4; stopping pressing the inner rod 2 to enable the inner rod 2 to move upwards to the upper end of the chuck 4 to enter the outer barrel 1, and enabling the lower end of the chuck 4 to be extruded by the barrel wall of the outer barrel 1 to contract inwards in the circumferential direction so as to clamp the plugging block 5;
s2, extending the blade fabrication hole plugging tool into the turbine blade 6, aligning the lower end of the inner cylinder with the fabrication hole 61, pressing the inner rod 2 downwards to enable the inner rod 2 to move downwards to the upper end of the chuck 4 to extend out of the outer cylinder 1 so as to loosen the plugging block 5, and enabling the plugging block 5 to be correspondingly placed in the fabrication hole 61;
s3, continuously pressing the inner rod 2 downwards, pressing the blocking block 5 downwards to block the technical hole 61 through the inner rod 2, and enabling the blocking block 5 and the technical hole 61 to generate relative pre-tightening force;
s4, taking out the blade process hole plugging tool, injecting brazing flux into the process hole 61 and coating the brazing flux on the plugging block 5 and around the process hole 61;
and S5, feeding the turbine blade 6 with the blocking block 5 into a brazing furnace for sintering, and completing the blocking of the blade process hole 61.
It will be appreciated that in the operation of "injecting flux into the tooling holes 61" in step S4, flux may be injected and applied by loading the flux through an injector and extending the end of the injector into the interior of the turbine blade 6 in alignment with the tooling holes 61. When the inner rod 2 is in a hollow tubular structure, the brazing flux can be directly injected into the hollow part of the inner rod 2, so that the brazing flux can be injected, and the brazing flux can be coated by the inner rod 2, so that the welding rod is more convenient and faster.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A tool for plugging a blade fabrication hole is characterized by comprising an outer barrel and an inner rod arranged in the outer barrel in a sliding mode, wherein the upper end of the inner rod is provided with an elastic pressing structure, and the elastic pressing structure acts on the inner rod and the outer barrel to enable the inner rod and the outer barrel to elastically stretch in the axial direction; the lower end of the inner rod is provided with a chuck for sleeving and clamping a plugging block, the diameter of the end surface of the upper end of the chuck is smaller than that of the end surface of the lower end of the chuck, and the diameter of the end surface of the lower end of the chuck is larger than that of the end surface of the lower end of the outer barrel;
when the inner rod moves downwards to the upper end of the chuck and extends out of the outer cylinder, the lower end of the chuck expands outwards in the circumferential direction to loosen the plugging block;
when the inner rod moves upwards to the upper end of the chuck and enters the outer barrel, the lower end of the chuck is extruded by the barrel wall of the outer barrel to contract inwards in the circumferential direction so as to clamp the plugging block.
2. The tool for plugging a blade process hole according to claim 1, wherein the collet is an annular sleeve made of an elastic material, and the annular sleeve is in a truncated cone shape or a truncated pyramid shape.
3. The tool for plugging a blade fabrication hole of claim 1, wherein said collet comprises at least two clamping pieces equally divided in a circumferential direction, an upper end of said clamping piece is fixedly connected to said inner rod, and lower ends of adjacent clamping pieces are separated from each other in a circumferential direction.
4. The tool for plugging the blade process hole according to any one of claims 1 to 3, wherein the elastic pressing structure comprises a pressing head and a spring, the pressing head is fixedly arranged at the upper end of the inner rod, the spring is sleeved on the inner rod, the upper end of the spring abuts against the lower end surface of the pressing head, and the lower end of the spring abuts against the upper end surface of the outer cylinder.
5. The tool for plugging the blade fabrication hole as claimed in any one of claims 1 to 3, wherein the inner rod has a hollow tubular structure, and the upper end of the inner rod is provided with a through hole for injecting a brazing flux.
6. The tool for plugging the blade technical hole as claimed in claim 1, wherein the inner wall of the outer cylinder is provided with a plurality of guide blocks, the guide blocks are annularly arranged along the circumferential direction of the inner wall of the outer cylinder and are distributed at intervals along the axial direction of the outer cylinder, and the guide inner rod is coaxial with the outer cylinder when moving up and down in the outer cylinder.
7. The tool for plugging a blade working hole according to claim 1, wherein the outer cylinder is a hard structure made of a polymer material, and the hardness of the hard structure is less than that of the turbine blade.
8. A blade process hole plugging method, characterized in that the method adopts the blade process hole plugging tool clamping block according to any one of claims 1 to 7, and comprises the following steps:
s1, pressing the inner rod downwards to make the inner rod move downwards to the upper end of the chuck to extend out of the outer cylinder, and placing a plugging block at the chuck; stopping pressing the inner rod to enable the inner rod to move upwards to the upper end of the chuck to enter the outer barrel, and enabling the lower end of the chuck to be extruded by the wall of the outer barrel to contract inwards in the circumferential direction so as to clamp the plugging block;
s2, inserting a blade fabrication hole plugging tool into the turbine blade, aligning the lower end of the inner cylinder with the fabrication hole, pressing the inner rod downwards to enable the inner rod to move downwards to the upper end of the chuck to extend out of the outer cylinder so as to loosen the plugging block, and correspondingly placing the plugging block in the fabrication hole;
s3, continuously pressing the inner rod downwards, and pressing the blocking block downwards against the process hole through the inner rod to enable the blocking block and the process hole to generate relative pre-tightening force;
s4, taking out the tool for plugging the blade fabrication hole, injecting brazing flux into the fabrication hole and coating the brazing flux on the plugging block and around the fabrication hole;
and S5, feeding the turbine blade with the plugging block into a brazing furnace for sintering, and completing plugging of the blade process hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111550627.0A CN113927126B (en) | 2021-12-17 | 2021-12-17 | Tool for plugging blade fabrication hole and plugging method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111550627.0A CN113927126B (en) | 2021-12-17 | 2021-12-17 | Tool for plugging blade fabrication hole and plugging method thereof |
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| CN113927126A true CN113927126A (en) | 2022-01-14 |
| CN113927126B CN113927126B (en) | 2022-05-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114888387A (en) * | 2022-06-29 | 2022-08-12 | 中国航发动力股份有限公司 | Vacuum brazing device and method for turbine working blade process hole |
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| CN210121742U (en) * | 2019-03-28 | 2020-03-03 | 深圳市万志宇科技有限公司 | Soldering anchor clamps of production inductance processing usefulness |
| CN210587276U (en) * | 2019-09-18 | 2020-05-22 | 浙江灿根智能科技有限公司 | Self-lubricating bearing drilling equipment with supplementary unloading |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114888387A (en) * | 2022-06-29 | 2022-08-12 | 中国航发动力股份有限公司 | Vacuum brazing device and method for turbine working blade process hole |
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Address after: No. 2899, Nanwu Road, Chengdu Economic and Technological Development Zone (Longquanyi District), Sichuan 610100 Applicant after: Chengdu Hehong Technology Co.,Ltd. Applicant after: China United heavy duty gas turbine technology Co., Ltd Address before: No. 458, East air route, Chengdu Economic and Technological Development Zone, Sichuan 610199 Applicant before: CHENGDU HONF TECHNOLOGY Co.,Ltd. Applicant before: China United heavy duty gas turbine technology Co., Ltd |
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