CN111745342A - Clamping device and clamping method for energy storage spot welding repair of rotor blade boss - Google Patents
Clamping device and clamping method for energy storage spot welding repair of rotor blade boss Download PDFInfo
- Publication number
- CN111745342A CN111745342A CN202010652468.4A CN202010652468A CN111745342A CN 111745342 A CN111745342 A CN 111745342A CN 202010652468 A CN202010652468 A CN 202010652468A CN 111745342 A CN111745342 A CN 111745342A
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- Prior art keywords
- clamping plate
- spot welding
- plate
- clamping
- blade
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Classifications
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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
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
Abstract
The invention relates to the field of maintenance equipment of aero-engines, in particular to a clamping force maintaining function capable of being quickly clamped and disassembled, and a clamping method and a clamping device for repairing energy storage spot welding of a rotor blade boss, which can ensure that a protective belt of a rotor blade boss of a low-pressure compressor is well contacted with a workbench during spot welding and form a stable current loop. The invention has the functions of quick clamping and dismounting, ensures the production efficiency and shortens the production period. The invention is particularly suitable for the rotor blade boss energy storage spot welding repair process.
Description
Technical Field
The invention relates to the field of maintenance equipment of aero-engines, in particular to a clamping device and a clamping method for energy storage spot welding repair of a boss of a rotor blade.
Background
The rotor blade of the low-pressure compressor is a key part of an engine, after the engine is used for a life cycle, the boss of the rotor blade of the low-pressure compressor is worn, the use requirement cannot be met, and the lean wear-resistant layer needs to be restored by induction brazing on the worn part of the boss. And in the recovery process, the protective belt needs to be wound around the boss by using energy storage spot welding. The energy storage spot welding needs to form a current loop, the blade body of the blade is not allowed to be in contact discharge, and only the blade tenon is in contact with the workbench. The blade tenon is characterized by an acute angle, so that large-area contact with a workbench is difficult to form, and the blade is easy to damage by point discharge. A special tenon clamping device needs to be designed to ensure that the protective belt of the rotor blade boss of the low-pressure compressor is in good contact with a workbench during energy storage spot welding to form a stable current loop.
Disclosure of Invention
The invention aims to solve the technical problem of providing a clamping device and a clamping method for repairing and repairing boss energy storage spot welding of a rotor blade, which can quickly clamp and disassemble a boss with a clamping force and ensure that the boss energy storage spot welding of the rotor blade of a low-pressure compressor has good contact with a workbench and forms a stable current loop.
The technical scheme adopted by the invention for solving the technical problems is as follows: clamping device is restoreed in spot welding of rotor blade boss energy storage, including punch holder and lower plate, through setting up the installation round pin rotatable coupling in punch holder mounting hole and lower plate mounting hole between punch holder and the lower plate, installation round pin cup joint is provided with the torsional spring, punch holder and lower plate pass through the torsional spring drive and press from both sides tightly, the material that punch holder and lower plate are is red copper.
Furthermore, the shape of the upper clamping plate clamping opening of the upper clamping plate and the shape of the lower clamping plate clamping opening of the lower clamping plate are matched with the blade tenon of the rotor blade.
Further, the lower clamping plate is in interference fit with the mounting pin.
Further, the clamping method of the clamping device for repairing the rotor blade boss by energy storage spot welding comprises the following steps: a. firstly, opening an upper clamping plate and a lower clamping plate, placing a blade tenon of a rotor blade to be repaired between the upper clamping plate and the lower clamping plate, then loosening the upper clamping plate and the lower clamping plate to enable the upper clamping plate and the lower clamping plate to clamp the blade tenon, ensuring that the blade tenon is well attached to an attaching surface between the blade tenon and the upper clamping plate and between the blade tenon and the lower clamping plate, and providing a clamping force by a torsion spring to ensure that the upper clamping plate and the lower clamping plate are closely attached to the blade tenon, thereby forming a current channel; b. placing the clamping device on a working table and tightly contacting the working table; c. winding the protective belt around the boss of the blade, and spot-welding the protective belt by using a welding gun; d. and after spot welding is finished, opening the upper clamping plate and the lower clamping plate, taking out the blade, and completing the whole spot welding protective belt process.
The invention has the beneficial effects that: the upper clamping plate and the lower clamping plate are matched with the three-dimensional structure of the blade, so that the clamping part can be tightly attached to the molded surface of the blade tenon, a current channel with a larger area is formed, and point discharge is avoided. And secondly, because the upper clamping plate and the lower clamping plate use red copper, the electric conduction performance is good, the stability of discharge current is ensured, the hardness of the red copper is low, and the blade cannot be damaged in the clamping process. In addition, the device has the function of quick clamping and dismounting, ensures the production efficiency and shortens the production period. The invention is particularly suitable for the rotor blade boss energy storage spot welding repair process.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of the upper splint of the present invention.
Fig. 3 is a schematic structural view of the lower splint of the present invention.
Fig. 4 is a structural schematic view of the torsion spring of the present invention.
Labeled as: the clamp comprises a lower clamp plate 1, a lower clamp plate mounting hole 11, a lower clamp plate clamping opening 12, an upper clamp plate 2, an upper clamp plate mounting hole 21, an upper clamp plate clamping opening 22, a torsion spring 3 and a mounting pin 4.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Clamping device is restoreed in rotor blade boss energy storage spot welding as shown in fig. 1, fig. 2, fig. 3, fig. 4, including punch holder 2 and lower plate 1, through setting up 4 rotatable coupling of mounting pin in punch holder mounting hole 21 and lower plate mounting hole 11 between punch holder 2 and the lower plate 1, 4 overcoat joints of mounting pin are provided with torsional spring 3, punch holder 2 and lower plate 1 are pressed from both sides tightly through the drive of torsional spring 3, the material that punch holder 2 and lower plate 1 are is red copper.
The clamping method in actual use is such that it comprises the steps of: a. firstly, opening an upper clamping plate 2 and a lower clamping plate 1, placing a blade tenon of a rotor blade to be repaired between the upper clamping plate 2 and the lower clamping plate 1, then loosening the upper clamping plate 2 and the lower clamping plate 1 to enable the upper clamping plate 2 and the lower clamping plate 1 to clamp the blade tenon, ensuring that the blade tenon is well jointed with a joint surface between the blade tenon and the upper clamping plate 2 and the lower clamping plate 1, and providing a clamping force by a torsion spring 3 to ensure that the upper clamping plate 2 and the lower clamping plate 1 are tightly jointed with the blade tenon, thereby forming a current channel; b. placing the clamping device on a working table and tightly contacting the working table; c. winding the protective belt around the boss of the blade, and spot-welding the protective belt by using a welding gun; d. and after spot welding is finished, opening the upper clamping plate 2 and the lower clamping plate 1, and taking out the blade to complete the whole spot welding protecting band process. The clamping plate is designed according to the three-dimensional structure of the blade, so that the clamping part can be tightly attached to the profile of the blade tenon, a current channel with a large area is formed, and point discharge is avoided. And upper and lower splint use red copper, have good electric conductivity, have guaranteed discharge current's stability, and red copper hardness is less, can not cause the damage to the blade in the clamping process.
In order to obtain a more ideal clamping and fastening effect, the shape of the upper clamping plate jaw 22 of the upper clamping plate 2 and the shape of the lower clamping plate jaw 12 of the lower clamping plate 1 are preferably matched to the blade tenon of the rotor blade. In addition, in order to ensure the stable operation of the mounting pin 4, the lower clamping plate 1 and the mounting pin 4 are preferably in interference fit.
The invention effectively ensures the rapidity and the safety of the energy storage spot welding of the lug boss of the blade, effectively avoids the blade damage caused by point discharge, ensures the repair quality of the lug boss of the blade and reduces the fracture risk of the blade in the working process. The invention has obvious technical advantages and wide market promotion prospect.
Claims (4)
1. Clamping device is restoreed in rotor blade boss energy storage spot welding, its characterized in that: including punch holder (2) and lower plate (1), through setting up installation round pin (4) rotatable coupling in punch holder mounting hole (21) and lower plate mounting hole (11) between punch holder (2) and lower plate (1), installation round pin (4) cup joint is provided with torsional spring (3), punch holder (2) and lower plate (1) are tight through torsional spring (3) drive and clamp, the material that punch holder (2) and lower plate (1) are is red copper.
2. The rotor blade boss energy storage spot welding repair clamping device of claim 1, wherein: the shape of the upper clamping plate clamping opening (22) of the upper clamping plate (2) and the shape of the lower clamping plate clamping opening (12) of the lower clamping plate (1) are matched with the blade tenon of the rotor blade.
3. The rotor blade boss energy storage spot welding repair clamping device as claimed in claim 1 or 2, wherein: the lower clamping plate (1) and the mounting pin (4) are in interference fit.
4. A clamping method using the rotor blade boss stored energy spot welding repair clamping device of claim 1, comprising the steps of:
a. firstly, opening an upper clamping plate (2) and a lower clamping plate (1), placing a blade tenon of a rotor blade to be repaired between the upper clamping plate (2) and the lower clamping plate (1), then loosening the upper clamping plate (2) and the lower clamping plate (1), clamping the blade tenon by the upper clamping plate (2) and the lower clamping plate (1), ensuring that the blade tenon is well attached to an attaching surface between the upper clamping plate (2) and the lower clamping plate (1), and providing a clamping force by a torsion spring (3) to ensure that the upper clamping plate (2) and the lower clamping plate (1) are closely attached to the blade tenon, thereby forming a current channel;
b. placing the clamping device on a working table and tightly contacting the working table;
c. winding the protective belt around the boss of the blade, and spot-welding the protective belt by using a welding gun;
d. and after spot welding is finished, opening the upper clamping plate (2) and the lower clamping plate (1), and taking out the blade to complete the whole spot welding protecting band process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010652468.4A CN111745342A (en) | 2020-07-08 | 2020-07-08 | Clamping device and clamping method for energy storage spot welding repair of rotor blade boss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010652468.4A CN111745342A (en) | 2020-07-08 | 2020-07-08 | Clamping device and clamping method for energy storage spot welding repair of rotor blade boss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111745342A true CN111745342A (en) | 2020-10-09 |
Family
ID=72711052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010652468.4A Pending CN111745342A (en) | 2020-07-08 | 2020-07-08 | Clamping device and clamping method for energy storage spot welding repair of rotor blade boss |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111745342A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362559A (en) * | 2012-04-05 | 2013-10-23 | 通用电气公司 | CMC blade with pressurized internal cavity for erosion control |
| CN203526810U (en) * | 2013-09-22 | 2014-04-09 | 中国东方电气集团有限公司 | Heat dissipation device for hollow blade air intake edge rib welding |
| CN104128810A (en) * | 2014-07-23 | 2014-11-05 | 中国人民解放军第五七一九工厂 | Turbine blade molded surface repairing clamp |
| CN204167496U (en) * | 2014-10-31 | 2015-02-18 | 常州靓宇焊割有限公司 | Electric welding clamp-type ground clamp |
| CN204741085U (en) * | 2015-06-29 | 2015-11-04 | 常州凯斯装饰材料有限公司 | Argon arc welding machine land used fastener |
| CN105269277A (en) * | 2014-07-02 | 2016-01-27 | 西安航空动力股份有限公司 | Method for machining arc-tooth tenon blade of aircraft engine gas compressor |
| CN205324938U (en) * | 2016-01-29 | 2016-06-22 | 郑州华威焊业有限公司 | Practice thrift gouging cut anchor clamps of carbon -point |
| CN106768755A (en) * | 2016-11-28 | 2017-05-31 | 中航动力股份有限公司 | A kind of fixture integrated and test method for swallow-tail form tenon turbine blade vibration fatigue test |
| CN207303387U (en) * | 2017-10-21 | 2018-05-01 | 南京聚联输变电安装有限责任公司 | A kind of argon arc welding machine land used wire clamp |
| EP3396109A1 (en) * | 2017-04-28 | 2018-10-31 | Doosan Heavy Industries & Construction Co., Ltd. | Rotatable body, method of manufacturing the same, and steam turbine including the same |
-
2020
- 2020-07-08 CN CN202010652468.4A patent/CN111745342A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362559A (en) * | 2012-04-05 | 2013-10-23 | 通用电气公司 | CMC blade with pressurized internal cavity for erosion control |
| CN203526810U (en) * | 2013-09-22 | 2014-04-09 | 中国东方电气集团有限公司 | Heat dissipation device for hollow blade air intake edge rib welding |
| CN105269277A (en) * | 2014-07-02 | 2016-01-27 | 西安航空动力股份有限公司 | Method for machining arc-tooth tenon blade of aircraft engine gas compressor |
| CN104128810A (en) * | 2014-07-23 | 2014-11-05 | 中国人民解放军第五七一九工厂 | Turbine blade molded surface repairing clamp |
| CN204167496U (en) * | 2014-10-31 | 2015-02-18 | 常州靓宇焊割有限公司 | Electric welding clamp-type ground clamp |
| CN204741085U (en) * | 2015-06-29 | 2015-11-04 | 常州凯斯装饰材料有限公司 | Argon arc welding machine land used fastener |
| CN205324938U (en) * | 2016-01-29 | 2016-06-22 | 郑州华威焊业有限公司 | Practice thrift gouging cut anchor clamps of carbon -point |
| CN106768755A (en) * | 2016-11-28 | 2017-05-31 | 中航动力股份有限公司 | A kind of fixture integrated and test method for swallow-tail form tenon turbine blade vibration fatigue test |
| EP3396109A1 (en) * | 2017-04-28 | 2018-10-31 | Doosan Heavy Industries & Construction Co., Ltd. | Rotatable body, method of manufacturing the same, and steam turbine including the same |
| CN207303387U (en) * | 2017-10-21 | 2018-05-01 | 南京聚联输变电安装有限责任公司 | A kind of argon arc welding machine land used wire clamp |
Non-Patent Citations (2)
| Title |
|---|
| 宋涛等: "航空发动机叶片焊接轨迹规划研究", 《机械设计与制造》 * |
| 黄文哲等: "《焊工手册 手工焊接与切割 修订版》", 31 August 1991 * |
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Application publication date: 20201009 |
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| RJ01 | Rejection of invention patent application after publication |