CN115815958A - Tool and method for integrally repairing nozzle of thin-wall multi-channel fuel nozzle - Google Patents
Tool and method for integrally repairing nozzle of thin-wall multi-channel fuel nozzle Download PDFInfo
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- CN115815958A CN115815958A CN202310160502.XA CN202310160502A CN115815958A CN 115815958 A CN115815958 A CN 115815958A CN 202310160502 A CN202310160502 A CN 202310160502A CN 115815958 A CN115815958 A CN 115815958A
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- nozzle pipe
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
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Abstract
The tool comprises a substrate, a fixture body and an alignment block, and the method sequentially comprises the steps of clamping and fixing a nozzle pipe, removing the original nozzle through linear cutting, aligning light spots, measuring the alignment center distance, preheating the top surface of the nozzle pipe through laser, and printing a new nozzle through 3D. Compared with the existing welding processing and manufacturing mode, the processing difficulty is effectively reduced, the processing period is greatly shortened, and the processing qualified rate is effectively improved; compared with the existing 3D printing integral processing mode, the processing period is greatly shortened, and the processing cost is effectively reduced; in the development process of the dual-fuel nozzle of the gas turbine, when the structure and the size of the nozzle are required to be improved and adjusted according to actual needs, only the original nozzle on the nozzle is required to be removed, and a new nozzle is printed on the original nozzle pipe in a 3D mode, so that the development cycle and the cost of the dual-fuel nozzle of the gas turbine are effectively reduced.
Description
Technical Field
The invention belongs to the technical field of gas turbines, and particularly relates to a tool and a method for integrally repairing a nozzle of a thin-wall multi-channel fuel nozzle.
Background
The dual-fuel nozzle of the gas turbine usually consists of an oil-gas double-layer pipeline and a spray head, and the processing process routes of the existing nozzle mainly include two routes: (1) the welding processing and manufacturing mode is adopted, the seam allowance is processed at the joint surface of the pipeline and the spray head for positioning, then the pipeline and the spray head are fixedly connected through argon arc welding, however, the welding processing difficulty is large due to the fact that the oil-gas double-layer pipeline (nozzle pipe) belongs to a thin-wall part, and meanwhile, the problems of long processing period and low processing qualified rate exist. (2) The overall processing mode adopting 3D printing can reduce the processing difficulty, but still has the problem of long processing period and also has the defect of high processing cost.
In the process of developing a dual-fuel nozzle of a gas turbine, the structure and the size of a nozzle head of the nozzle are frequently required to be improved and adjusted according to actual needs; in the process of testing the nozzle of the combustion chamber of the gas turbine, the nozzle head of the nozzle is easy to damage; in the face of the above situation, the nozzle head of the original nozzle obviously cannot meet the actual requirement continuously, so that the nozzle can only be remade, and the remade nozzle can only continue to use the existing nozzle processing process route, thereby seriously affecting the development cycle and cost of the dual-fuel nozzle of the gas turbine.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the tool and the method for integrally repairing the nozzle of the thin-wall multi-channel fuel nozzle, compared with the existing welding manufacturing mode, the tool and the method effectively reduce the processing difficulty, greatly shorten the processing period and effectively improve the processing qualified rate; compared with the existing 3D printing integral processing mode, the processing period is greatly shortened, and the processing cost is effectively reduced; in the development process of the dual-fuel nozzle of the gas turbine, when the structure and the size of the nozzle are required to be improved and adjusted according to actual needs, only the original nozzle on the nozzle is required to be removed, and a new nozzle is printed on an original nozzle pipe in a 3D mode, so that the development cycle and the cost of the dual-fuel nozzle of the gas turbine are effectively reduced.
In order to achieve the purpose, the invention adopts the following technical scheme: the tool for integrally repairing the nozzle of the thin-wall multi-channel fuel nozzle comprises a base plate, a main clamping block, an auxiliary clamping block and an alignment block; the main clamping block is fixedly connected and matched with the base plate through a bolt and a positioning pin; the auxiliary clamping block is fixedly connected and matched with the main clamping block through a bolt and a positioning pin; the main clamping block and the auxiliary clamping block are buckled together to form a clamp body, and the nozzle pipe is fixedly clamped between the main clamping block and the auxiliary clamping block; the alignment piece sets up on anchor clamps body top, is equipped with the cross scale line at the top surface center of alignment piece, and the alignment piece passes through bolt and anchor clamps body fixed connection cooperation.
The integral repair method of the nozzle of the thin-wall multi-channel fuel nozzle adopts the integral repair tool of the nozzle of the thin-wall multi-channel fuel nozzle, and comprises the following steps:
the method comprises the following steps: clamping and fixing a nozzle pipe of a nozzle to be repaired in a fixture body;
step two: moving a clamp body for clamping a nozzle to be repaired into a linear cutting machine, taking the bottom surface of the clamp body as a front surface, and cutting off an original spray head of the nozzle by using the linear cutting machine, wherein a cutting surface is the top surface of a nozzle pipe, and the top surface of the nozzle pipe is required to be parallel to the bottom surface of the clamp body;
step three: fixedly mounting the substrate on a printing table of a 3D printer, then transferring the clamp body clamped with the nozzle pipe from the wire cutting machine to the 3D printer, and fixedly mounting the clamp body on the substrate;
step four: placing the alignment block on the fixture body, then adjusting the position of the alignment block to enable the center of the laser spot to coincide with the center of the cross staff line on the top surface of the alignment block, and then fixing the alignment block and the fixture body together;
step five: the clamp body clamped with the nozzle pipe is detached from the substrate and then transferred to a three-coordinate measuring instrument, and the center distance between the center of the nozzle pipe and the center of the cross ruler line on the top surface of the alignment block is measured through the three-coordinate measuring instrument;
step six: the clamp body clamped with the nozzle pipe is transferred back to the 3D printer from the three-coordinate measuring instrument, and the clamp body is fixedly installed on the substrate again;
step seven: moving the original point position of the printing program of the 3D printer from the center of the cross scale line on the top surface of the alignment block to the center of the nozzle pipe according to the central distance value measured in the step five;
step eight: under the powdery state, scanning and preheating the top surface of the nozzle pipe by using laser of a 3D printer;
step nine: and executing a 3D printing program, finishing 3D printing of the new spray head on the top surface of the nozzle pipe according to the program, and finally finishing the repair of the nozzle.
The invention has the beneficial effects that:
compared with the existing welding processing and manufacturing mode, the tool and the method for integrally repairing the nozzle of the thin-wall multi-channel fuel nozzle effectively reduce the processing difficulty, greatly shorten the processing period and effectively improve the processing qualified rate; compared with the existing 3D printing integral processing mode, the processing period is greatly shortened, and the processing cost is effectively reduced; in the development process of the dual-fuel nozzle of the gas turbine, when the structure and the size of the nozzle are required to be improved and adjusted according to actual needs, only the original nozzle on the nozzle is required to be removed, and a new nozzle is printed on an original nozzle pipe in a 3D mode, so that the development cycle and the cost of the dual-fuel nozzle of the gas turbine are effectively reduced.
Drawings
FIG. 1 is a schematic structural view of a nozzle overall repair fixture of a thin-wall multi-channel fuel nozzle according to the present invention;
in the figure, 1 is a base plate, 2 is a main clamping block, 3 is an auxiliary clamping block, 4 is an alignment block, and 5 is a nozzle pipe.
Detailed description of the preferred embodiments
The invention is described in further detail below with reference to the figures and the specific embodiments.
As shown in fig. 1, the tool for integrally repairing the nozzle of the thin-wall multi-channel fuel nozzle comprises a base plate 1, a main clamping block 2, an auxiliary clamping block 3 and an alignment block 4; the main clamping block 2 is fixedly connected and matched with the base plate 1 through a bolt and a positioning pin; the auxiliary clamping block 3 is fixedly connected and matched with the main clamping block 2 through a bolt and a positioning pin; the main clamping block 2 and the auxiliary clamping block 3 are buckled together to form a clamp body, and the nozzle pipe 5 is fixedly clamped between the main clamping block 2 and the auxiliary clamping block 3; the alignment block 4 is arranged at the top end of the fixture body, a cross-shaped scale line is arranged at the center of the top surface of the alignment block 4, and the alignment block 4 is matched with the fixture body through a bolt in a fixed connection mode.
The integral repair method of the nozzle of the thin-wall multi-channel fuel nozzle adopts the integral repair tool of the nozzle of the thin-wall multi-channel fuel nozzle, and comprises the following steps:
the method comprises the following steps: clamping and fixing a nozzle pipe 5 of a nozzle to be repaired in a fixture body;
step two: moving the clamp body for clamping the nozzle to be repaired into a linear cutting machine, taking the bottom surface of the clamp body as a front surface, and cutting off an original spray head of the nozzle by using the linear cutting machine, wherein a cutting surface is the top surface of the nozzle pipe 5, and the top surface of the nozzle pipe 5 needs to be parallel to the bottom surface of the clamp body;
step three: fixedly mounting the substrate 1 on a printing table of a 3D printer, then transferring the clamp body clamped with the nozzle pipe 5 from the wire cutting machine to the 3D printer, and fixedly mounting the clamp body on the substrate 1;
step four: placing the alignment block 4 on the fixture body, then adjusting the position of the alignment block 4 to enable the center of the laser spot to coincide with the center of the cross-shaped scale line on the top surface of the alignment block 4, and then fixing the alignment block 4 and the fixture body together;
step five: the fixture body clamped with the nozzle pipe 5 is detached from the substrate 1, then the fixture body is transferred to a three-coordinate measuring instrument, and the center distance between the center of the nozzle pipe 5 and the center of the cross ruler line on the top surface of the alignment block 4 is measured through the three-coordinate measuring instrument;
step six: the clamp body clamped with the nozzle pipe 5 is transferred back to the 3D printer from the three-coordinate measuring instrument, and the clamp body is fixedly arranged on the substrate 1 again;
step seven: moving the original point position of the printing program of the 3D printer from the center of the cross scale line on the top surface of the alignment block 4 to the center of the nozzle pipe 5 according to the central distance value measured in the step five;
step eight: in a powder-free state, scanning and preheating the top surface of the nozzle pipe 5 by using laser of a 3D printer;
step nine: and executing a 3D printing program, finishing 3D printing of the new spray head on the top surface of the nozzle pipe 5 according to the program, and finally finishing the repair of the nozzle.
The embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications without departing from the scope of the present invention are intended to be included in the scope of the present invention.
Claims (2)
1. The utility model provides a frock is restoreed to thin wall multichannel fuel nozzle's shower nozzle is whole which characterized in that: comprises a base plate, a main clamping block, an auxiliary clamping block and an alignment block; the main clamping block is fixedly connected and matched with the base plate through a bolt and a positioning pin; the auxiliary clamping block is fixedly connected and matched with the main clamping block through a bolt and a positioning pin; the main clamping block and the auxiliary clamping block are buckled together to form a clamp body, and the nozzle pipe is fixedly clamped between the main clamping block and the auxiliary clamping block; the alignment piece sets up on anchor clamps body top, is equipped with the cross scale line at the top surface center of alignment piece, and the alignment piece passes through bolt and anchor clamps body fixed connection cooperation.
2. The integral repair method of the nozzle of the thin-wall multi-channel fuel nozzle adopts the integral repair tool of the nozzle of the thin-wall multi-channel fuel nozzle in claim 1, and is characterized by comprising the following steps:
the method comprises the following steps: clamping and fixing a nozzle pipe of a nozzle to be repaired in a fixture body;
step two: moving a clamp body for clamping a nozzle to be repaired into a linear cutting machine, taking the bottom surface of the clamp body as a front surface, and cutting off an original spray head of the nozzle by using the linear cutting machine, wherein a cutting surface is the top surface of a nozzle pipe, and the top surface of the nozzle pipe is required to be parallel to the bottom surface of the clamp body;
step three: fixedly mounting the substrate on a printing table of a 3D printer, then transferring the clamp body clamped with the nozzle pipe from the wire cutting machine to the 3D printer, and fixedly mounting the clamp body on the substrate;
step four: placing the alignment block on the fixture body, then adjusting the position of the alignment block to enable the center of the laser spot to coincide with the center of the cross-shaped scale line on the top surface of the alignment block, and then fixing the alignment block and the fixture body together;
step five: the clamp body clamped with the nozzle pipe is detached from the substrate and then transferred to a three-coordinate measuring instrument, and the center distance between the center of the nozzle pipe and the center of the cross ruler line on the top surface of the alignment block is measured through the three-coordinate measuring instrument;
step six: the clamp body clamped with the nozzle pipe is transferred back to the 3D printer from the three-coordinate measuring instrument, and the clamp body is fixedly arranged on the substrate again;
step seven: moving the original point position of the printing program of the 3D printer from the center of the cross ruler line on the top surface of the alignment block to the center of the nozzle pipe according to the central distance value measured in the step five;
step eight: under the powdery state, scanning and preheating the top surface of the nozzle pipe by using laser of a 3D printer;
step nine: and executing a 3D printing program, finishing 3D printing of the new spray head on the top surface of the nozzle pipe according to the program, and finally finishing the repair of the nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310160502.XA CN115815958B (en) | 2023-02-24 | 2023-02-24 | Integral repairing tool and method for spray head of thin-wall multi-channel fuel nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310160502.XA CN115815958B (en) | 2023-02-24 | 2023-02-24 | Integral repairing tool and method for spray head of thin-wall multi-channel fuel nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115815958A true CN115815958A (en) | 2023-03-21 |
| CN115815958B CN115815958B (en) | 2023-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310160502.XA Active CN115815958B (en) | 2023-02-24 | 2023-02-24 | Integral repairing tool and method for spray head of thin-wall multi-channel fuel nozzle |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007136567A (en) * | 2005-11-15 | 2007-06-07 | Tec Yasuda:Kk | Fixing tool for small work |
| CN208034565U (en) * | 2018-02-02 | 2018-11-02 | 重庆鑫源动力制造有限公司 | A kind of oil injection nozzle mounting tool |
| CN108723715A (en) * | 2018-05-30 | 2018-11-02 | 中国航发动力股份有限公司 | A method of with bar working nozzle shell |
| JP2019051566A (en) * | 2017-09-14 | 2019-04-04 | 株式会社サン機工 | Vice device |
| CN110666452A (en) * | 2019-09-19 | 2020-01-10 | 西安成立航空制造有限公司 | Machining method for replacing casting fuel nozzle shell through 3D printing |
| CN210335157U (en) * | 2019-04-03 | 2020-04-17 | 苏州迅拓自动化科技有限公司 | Tool jig for machining and drilling nozzle |
-
2023
- 2023-02-24 CN CN202310160502.XA patent/CN115815958B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007136567A (en) * | 2005-11-15 | 2007-06-07 | Tec Yasuda:Kk | Fixing tool for small work |
| JP2019051566A (en) * | 2017-09-14 | 2019-04-04 | 株式会社サン機工 | Vice device |
| CN208034565U (en) * | 2018-02-02 | 2018-11-02 | 重庆鑫源动力制造有限公司 | A kind of oil injection nozzle mounting tool |
| CN108723715A (en) * | 2018-05-30 | 2018-11-02 | 中国航发动力股份有限公司 | A method of with bar working nozzle shell |
| CN210335157U (en) * | 2019-04-03 | 2020-04-17 | 苏州迅拓自动化科技有限公司 | Tool jig for machining and drilling nozzle |
| CN110666452A (en) * | 2019-09-19 | 2020-01-10 | 西安成立航空制造有限公司 | Machining method for replacing casting fuel nozzle shell through 3D printing |
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| Publication number | Publication date |
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| CN115815958B (en) | 2023-05-12 |
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