CN111618519B - Efficient and precise repairing and assembling method for engine complex-structure ring pipe - Google Patents
Efficient and precise repairing and assembling method for engine complex-structure ring pipe Download PDFInfo
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- CN111618519B CN111618519B CN202010491190.7A CN202010491190A CN111618519B CN 111618519 B CN111618519 B CN 111618519B CN 202010491190 A CN202010491190 A CN 202010491190A CN 111618519 B CN111618519 B CN 111618519B
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- way joint
- joint
- way
- pipe
- tee
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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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
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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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention provides a high-efficiency precise repairing method for an engine ring pipe with a complex structure, which adopts series tools to simultaneously position a tee joint, a four-way joint and a five-way joint on two ring pipes; the tooling base is arranged on the cabin body through bolts, and a tee joint, a four-way joint or a five-way joint nozzle penetrates through a through hole in the tooling base and is connected with an outer nut with a guide section; when the tee joint, the four-way joint, the five-way joint and the titanium pipe are assembled and disassembled, only the outer sleeve nut is disassembled, the position of the tool base on the cabin body is always unchanged, and the tee joint, the four-way joint or the five-way joint is guaranteed to be consistent when the ring pipe is assembled and disassembled every time. The invention can reduce the filing, positioning and repairing difficulty of the titanium alloy annular pipe component with the complex structure, shorten the production period and ensure the positioning precision.
Description
Technical Field
The invention relates to a method for repairing a ring pipe, and belongs to the technical field of assembly of pipeline connecting pieces with complex structures.
Background
The main pipeline for conveying the propellant on the attitude control engine is generally an annular conduit assembly formed by welding various titanium alloy through parts and a titanium pipe. The circular pipe assembly has a complex pipeline shape structure, after the circular pipe is assembled, the clearance between the circular pipe assembly and surrounding components is small, and the precision requirement of the assembly position of each pipe is high. The structure and the span of the ring pipe have no compensation allowance, which requires that the ring pipe must be repaired and welded at one time, otherwise, the ring pipe assembly is interfered due to the repair of saw cutting.
The main pipeline of a certain attitude control engine is 2 pieces of parallel double-row ring pipes on the inner side and the outer side, each piece is 4.5m long and is provided with 15 bends. Each ring pipe is formed by welding six through pipes and six titanium pipes, and 24 welding seams are formed in total. The six titanium tubes are different in size and shape and are obtained by sampling, bending and filing on site; the six ways are respectively a five way, a four way, a three way with two upward connecting mouths and a three way with two downward connecting mouths. The inner and outer ring pipes, the tee joint, the four-way joint and the five-way joint are all suspended in the plane of 30mm on the upper end surface of the engine cabin body by using hoops.
Because of the structure is complicated, size accuracy is high, lead to ring canal filing, location, the assembly process degree of difficulty big, mainly reflect: 1) the circular pipe assembly has more spatial position sizes and high positioning precision requirement, and the requirements of clearance, verticality, angle and parallelism are met; 2) six titanium pipes on each ring pipe need to be sampled, bent, filed and welded section by section, and the welding of the whole pipe can be completed only by repeatedly dismounting and mounting 6 times, and the complete space position of each dismounting and mounting is not fixed, so that the repairing and mounting precision of the ring pipe is difficult to guarantee, and the whole assembly consistency of an engine is influenced; 3) the processing cycle of the ring pipe is long, and the production efficiency is low.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a method for efficiently and precisely repairing and matching an annular pipe by using a tool, which can reduce the filing, positioning and repairing difficulties of a titanium alloy annular pipe component with a complex structure, shorten the production period and ensure the positioning precision.
The technical scheme adopted by the invention for solving the technical problems is as follows: a high-efficiency precise repair method for an engine ring pipe with a complex structure adopts a series of tools to simultaneously position a tee joint, a four-way joint and a five-way joint on two ring pipes; the tooling base is arranged on the cabin body through bolts, and a tee joint, a four-way joint or a five-way joint nozzle penetrates through a through hole in the tooling base and is connected with an outer nut with a guide section; when the tee joint, the four-way joint, the five-way joint and the titanium pipe are assembled and disassembled, only the outer sleeve nut is disassembled, the position of the tool base on the cabin body is always unchanged, and the tee joint, the four-way joint or the five-way joint is guaranteed to be consistent when the ring pipe is assembled and disassembled every time.
The guide section of the outer sleeve nut penetrates through a hole in the upper end face of the cabin body, and the assembly requirement is met by adjusting the gap between the guide section and the hole in the cabin body.
And the mounting surface of the tee joint, the four-way joint or the five-way joint on the tool base is processed into an inclined surface.
And a limiting groove is processed on the tool base, and when the tee joint, the four-way joint or the five-way joint is arranged on the tool base, four sides of the tee joint, the four-way joint or the five-way joint are embedded into the limiting groove.
The guide hoop sheet is arranged on the tool base, the parallel guide pipes are positioned through the hoop sheet, and the parallelism between the inner side ring pipe and the outer side ring pipe is guaranteed in the guide pipe sampling and filing process.
The invention has the beneficial effects that:
(1) the position of each through hole on the ring pipe is accurately positioned by using a series of tools, so that the requirement of the space position for assembling the titanium alloy ring pipe assembly is met, and the assembling and positioning precision is improved;
(2) the complete set of tools is used for producing the circular pipes, so that 12 guide pipes in total can be sampled, filed, positioned and welded at one time for two circular pipes, and the production period of the circular pipes is shortened from 10 days to 4 days;
(3) for the same batch of engine ring pipes, batch production can be realized only by once sampling, the assembly period of the engine is greatly shortened, and the production efficiency is improved.
Drawings
FIG. 1 is a schematic view of an attitude control engine collar assembly;
FIG. 2 is a schematic view of the construction of the bustle pipe assembly;
fig. 3 is a schematic structural diagram of a five-way positioning tool provided in an embodiment of the present invention.
Detailed Description
The present invention will be further described with reference to the following drawings and examples, which include, but are not limited to, the following examples.
The invention provides a high-efficiency precise repair method for an engine ring pipe with a complex structure, wherein the ring pipe comprises an inner ring pipe and an outer ring pipe, a series of tools are adopted to simultaneously position each through hole on the two ring pipes, and the repair of the two ring pipes is completed once, and the process method comprises the following steps:
(1) the tool base is arranged on the cabin body through bolts, and meanwhile, the guide hoop sheets are arranged to be flush with the base and fastened with the bolts;
(2) the lower end of the tooling base is connected with an outer sleeve nut with a guide section, the outer sleeve nut is connected with a through connection nozzle on the positioning tooling, the guide section passes through a hole on the upper end surface of the cabin body, and the clearance between the guide section and the hole on the cabin body is measured and adjusted to meet the assembly requirement;
(3) the installation surface of the tool base upper through is processed into an inclined plane with a certain angle, so that the through positioning rear edge is inclined with a determined angle to meet the requirement of a design drawing;
(4) and processing a limiting groove on the tool base. Each through is arranged on the tool base, the four sides of each through are embedded into the limiting grooves, and the outer nuts on the tool base are fixedly connected with the through connection nozzles, so that the assembly positions of the through are uniquely determined;
(5) the guide hoop sheets are arranged on the tool base, the parallel catheters are positioned through the hoop sheets, and the parallelism between the inner side ring pipe and the outer side ring pipe is ensured in the process of catheter sampling and filing;
(6) when the through pipes and the titanium pipes are assembled and disassembled, only the outer sleeve nut is disassembled, the position of the tool base on the cabin body is always unchanged, and the through positions are kept consistent when the ring pipes are assembled and disassembled every time;
(7) and (4) simultaneously positioning the through holes on the two ring pipes according to the steps, and repairing each titanium pipe in the two ring pipes on the inner side and the outer side at one time.
In the step (2), the guide section penetrates through the hole on the upper end surface of the cabin body, and the gap between the guide section and the hole on the cabin body is measured and adjusted to be less than or equal to 5 mm.
In the step (3), the angle of the installation surface communicated with the tool is 10 degrees.
In the step (4), the tool limiting groove is matched with the square size of the corresponding through hole.
In the step (5), the inner diameter of the tool guide hoop sheet is consistent with the outer diameter of the adjacent titanium pipe, and the width of the hoop sheet is more than or equal to 20 mm.
In the step (7), the butt joint clearance is not more than 0.1mm after the titanium pipe is repaired, and the wall dislocation amount is not more than 0.1 mm.
The embodiment of the invention is shown in fig. 1, and relates to an engine ring pipe assembly which is composed of an inner side and an outer side 2 ring pipes, wherein as shown in fig. 2, 1 ring pipe is formed by welding six through pipes and six titanium pipes, the six through pipes are respectively a five-way pipe, a four-way pipe, two tee pipes with upward connecting mouths, and two tee pipes with downward connecting mouths.
As shown in fig. 2, the five-way positioning tool comprises a five-way 1, a tool base 2, a guide hoop sheet 3 and a guide outer sleeve nut 4. The five-way positioning tool is specifically realized in the following process:
(1) installing the tool base 2 on the cabin body through bolts, simultaneously installing the guide hoop sheets 3 to be flatly attached to the base 2, and fastening the connecting bolts;
(2) the five-way joint is placed on the positioning tool, the guide outer sleeve nut 4 is connected with a connecting nozzle of the five-way joint, the guide section penetrates through a hole in the upper end face of the cabin body, the circumferential direction of a gap between the guide section and the hole in the cabin body is adjusted to be uniform, the gap value is measured, and the gap is required to be larger than 5 mm;
(3) the upper surface of the tooling base 2 is an inclined plane of 10 degrees, so that the five-way joint is positioned and forms an included angle of 10 degrees with the end surface of the cabin body, and the assembly requirement is met. Meanwhile, a limiting groove is formed in the upper surface of the tool base 2, after the five-way connector is installed, four sides of the five-way connector are embedded into the limiting groove, and the guide outer sleeve nut 4 is tightly connected with the five-way connector, so that the assembly position of the five-way connector is uniquely determined;
(4) the tool base 2 is provided with a guide hoop sheet 3, the parallel catheters are positioned through the hoop sheet, and the parallelism between the inner and outer side circular tubes is ensured in the process of catheter sampling and filing;
(5) when the five-way pipe and the titanium pipe are assembled and disassembled, only the guide outer sleeve nut 4 needs to be disassembled, the position of the tool base 2 on the cabin body is always unchanged, and the five-way pipe can be kept consistent when the ring pipe is assembled and disassembled every time.
Claims (1)
1. A high-efficiency precise repair method for an engine ring pipe with a complex structure is characterized in that series tools are adopted to simultaneously position a tee joint, a four-way joint, a five-way joint and a titanium pipe on two ring pipes; the repairing method comprises the following steps: installing a tooling base on the cabin body through bolts, and installing guide hoop sheets on the tooling base at the same time, wherein the guide hoop sheets are flatly attached to the tooling base and are fastened with the connecting bolts; placing a tee joint, a four-way joint or a five-way joint on a tool base, enabling a connecting nozzle of the tee joint, the four-way joint or the five-way joint to penetrate through a through hole on the tool base and be connected with an outer nut with a guide section, enabling the guide section of the outer nut to penetrate through a hole on the upper end face of a cabin body, enabling the guide section and the hole on the cabin body to meet the assembly requirement by adjusting the gap between the guide section and the hole, machining an inclined plane with a certain angle on the installation surface of the tee joint, the four-way joint or the five-way joint on the tool base, machining a limiting groove on the tool base, and embedding the four directions of the tee joint, the four-way joint or the five-way joint into the limiting groove when the tee joint, the four-way joint or the five-way joint is installed on the tool base; the parallel titanium tubes are positioned by the guide hoop sheets, and the parallelism between the inner and outer side ring tubes is ensured in the sampling and filing processes of the titanium tubes; when the tee joint, the four-way joint, the five-way joint and the titanium pipe are assembled and disassembled, only the outer sleeve nut is disassembled, the position of the tool base on the cabin body is always unchanged, and the tee joint, the four-way joint or the five-way joint is guaranteed to be consistent when the ring pipe is assembled and disassembled every time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010491190.7A CN111618519B (en) | 2020-06-02 | 2020-06-02 | Efficient and precise repairing and assembling method for engine complex-structure ring pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010491190.7A CN111618519B (en) | 2020-06-02 | 2020-06-02 | Efficient and precise repairing and assembling method for engine complex-structure ring pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111618519A CN111618519A (en) | 2020-09-04 |
| CN111618519B true CN111618519B (en) | 2022-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010491190.7A Active CN111618519B (en) | 2020-06-02 | 2020-06-02 | Efficient and precise repairing and assembling method for engine complex-structure ring pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100543295B1 (en) * | 2004-12-27 | 2006-01-20 | 현대중공업 주식회사 | Manufacturing method of the economic valve spindle for two stroke diesel by flywheel friction welding |
| CN101704167B (en) * | 2009-11-20 | 2011-08-31 | 株洲南方燃气轮机成套制造安装有限公司 | Manufacturing method of gas assembly and positioning fixture thereof |
| CN105299342B (en) * | 2015-11-02 | 2017-08-25 | 成都发动机（集团）有限公司 | A kind of fuel feed house steward for large aerospace engine |
| CN205571991U (en) * | 2016-04-13 | 2016-09-14 | 成都亨通兆业精密机械有限公司 | Tee bend pipe fitting branch pipe facing (operation) anchor clamps |
| DE102017105821A1 (en) * | 2017-03-17 | 2018-09-20 | Faurecia Emissions Control Technologies, Germany Gmbh | Joining device and method for manufacturing an exhaust system |
| CN107159997A (en) * | 2017-05-16 | 2017-09-15 | 河南科隆制冷科技有限公司 | A kind of welded tube positioning tool in electromagnetism four-way reversing valve |
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| CN111618519A (en) | 2020-09-04 |
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