CN105171260A - Method for processing engine stator component - Google Patents
Method for processing engine stator component Download PDFInfo
- Publication number
- CN105171260A CN105171260A CN201510556086.0A CN201510556086A CN105171260A CN 105171260 A CN105171260 A CN 105171260A CN 201510556086 A CN201510556086 A CN 201510556086A CN 105171260 A CN105171260 A CN 105171260A
- Authority
- CN
- China
- Prior art keywords
- stator
- boss
- blade
- ring
- stator blade
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- 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
- B23K28/00—Welding or cutting not covered by any of the preceding groups, e.g. electrolytic welding
- B23K28/02—Combined welding or cutting procedures or apparatus
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Manufacture Of Motors, Generators (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a method for processing an engine stator component. The method comprises the following steps: a boss extending along the blade shape of a stator blade is arranged at the head end of each stator blade; a plurality of positioning grooves matched with the bosses are formed in a supporting seat and uniformly distributed circumferentially; the lower edge of a stator ring sleeves the supporting seat, the tail ends of a plurality of stator blades are connected with the wall body of the stator ring, the bosses are buckled into the positioning grooves, a pressing piece covers the upper edge of the stator ring, and the stator ring is clamped by the connection of a connecting piece and the supporting seat; the stator blades and the stator ring are welded and positioned; the stator blades and the stator ring are brazed in vacuum, the bosses are moved by mechanical processing, and a positioning clamp is removed. The processing of the bosses and the positioning grooves is irrelevant to the contour degree and the chord width of the stator blades, so that the dimensional accuracy and the consistency of processing are easily ensured, the requirement of the engine stator component on uniform distribution, the setting angle and the height can be met.
Description
Technical field
The present invention relates to engine art, especially, relate to a kind of processing method of engine stator assembly.
Background technology
Stator assembly adopts vacuum brazing to process by stator ring and stator blade, needs to carry out pre-determined bit to ensure the positional precision of stator blade before vacuum brazing, then doses solder and carry out vacuum brazing.Stator assembly carries out pre-determined bit by positioning fixture.
Existing positioning fixture is provided with multiple equally distributed V-type groove, processes on the right side of V-type groove according to stator blade blade back profile, is controlled uniform, established angle, the height equidimension of stator blade by V-type groove and stator blade admission edge.But because the profile tolerance of blade itself, string be wide etc., tolerance is larger, processing uniformity is poor, and the uniformity that V-type groove is processed according to blade profile is also poor, causes overall locating effect undesirable, uniform, the established angle of stator blade after soldering, highly seriously overproof, cannot Production requirement be met.
Summary of the invention
The invention provides a kind of processing method of engine stator assembly, stator blade after soldering be uniform to solve in prior art, established angle, highly overproof technical problem.
The technical solution used in the present invention is as follows:
A processing method for engine stator assembly, for positioning fixture auxiliary under stator blade is welded in stator ring, positioning fixture comprises supporting seat, compressing tablet and connector, comprises the following steps:
At the head end of stator blade, the boss that the blade profile along stator blade extends is set.
Supporting seat arranges multiple locating slot for coordinating with boss, and multiple locating slot is circularly and evenly distributed.
By under stator ring along being sheathed on supporting seat, and the tail end of multiple stator blade be connected with the wall body of stator ring and boss snapped in locating slot, compressing tablet being covered edge on stator ring, and being connected with supporting seat by connector and clamping stator ring.
Stator blade and stator boxing are connect location.
Stator blade and stator ring are carried out vacuum brazing, adopts machining to remove boss, and remove positioning fixture.
Further, stator blade and stator ring are located by laser spot welding.
Further, boss is square boss, and the axis of boss overlaps with the long-pending folded axle of stator blade.
Further, the axial length of boss is 1.75 ~ 1.85 millimeters, and the longitudinal direction of boss is highly 0.94 ~ 1.06 millimeter.
Further, the quantity of locating slot is consistent with the quantity of stator blade, and locating slot is square groove, and the groove depth of locating slot is 0.94 ~ 1.06 millimeter, and groove width is the projection width that stator blade loads immediately below stator ring rear boss.
Further, supporting seat embeds in the lower edge of stator ring, and compressing tablet embeds in the upper edge of stator ring, and connector is bolt.
Further, supporting seat is provided with the support portion supporting stator blade bottom.
The present invention has following beneficial effect: boss is arranged at the head end of stator blade, and stator blade one end is connected to stator ring wall body, and the other end to be coordinated with locating slot by boss locates.Wide irrelevant of boss and locating slot processing and the profile tolerance of stator blade, string, thus dimensional accuracy and processing uniformity easily ensure, can meet the requirement of engine stator assembly to uniform, established angle and height.
Except object described above, feature and advantage, the present invention also has other object, feature and advantage.Below with reference to figure, the present invention is further detailed explanation.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the positioning fixture clamping engine stator assembly of the preferred embodiment of the present invention;
Fig. 2 is the clamping support schematic diagram of the preferred embodiment of the present invention;
Fig. 3 is the stator blade structural representation of the preferred embodiment of the present invention;
Fig. 4 is the part-structure schematic diagram that the stator ring of the preferred embodiment of the present invention installs two stator blades;
Fig. 5 is the structural representation after the engine stator assembly removal boss of the preferred embodiment of the present invention.
Description of reference numerals: 100, stator blade; 200, stator ring; 310, supporting seat; 320, compressing tablet; 330, connector; 340, support portion; 110, boss; 311, locating slot.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
With reference to Fig. 1 ~ Fig. 5, the preferred embodiments of the present invention provide a kind of processing method of engine stator assembly, for positioning fixture auxiliary under stator blade 100 is welded in stator ring 200, positioning fixture comprises supporting seat 310, compressing tablet 320 and connector 330, comprises the following steps:
At the head end of stator blade 100, the boss 110 that the blade profile along stator blade 100 extends is set.
Supporting seat 310 arranges multiple locating slot 311 for coordinating with boss 110, and multiple locating slot 311 is circularly and evenly distributed.
Stator ring 200 times edges are sheathed on supporting seat 310, and the tail end of multiple stator blade 100 is connected with the wall body of stator ring 200 and boss 110 is snapped in locating slot 311, compressing tablet 320 is covered edge on stator ring 200, and is connected with supporting seat 310 clamps stator ring 200 by connector 330.
Stator blade 100 is welded location with stator ring 200.
Stator blade 100 and stator ring 200 are carried out vacuum brazing, adopts machining to remove boss 110, and remove positioning fixture.
Boss 110 projection is at the head end of stator blade 100, and the size of boss 110 is less than the head end end face of mirror blade.Because boss 110 is arranged at the head end of stator blade 100, thus wide irrelevant of the profile tolerance of its size and stator blade 100, string, thus dimensional accuracy and processing uniformity easily ensure.Locating slot 311 and boss 110 snap fit, its size is corresponding with boss 110 size, and its dimensional accuracy and processing uniformity also easily ensure.
Stator assembly needs multiple stator blade 100 is installed, for ensureing that stator blade 100 is uniformly distributed, locating slot 311 is uniformly distributed along a circumference, and when stator ring 200 times edges are sheathed on supporting seat 310, the circumference center of circle that the center of circle of stator ring 200 and locating slot 311 distribute overlaps.Stator blade 100 one end is connected with stator ring 200, and the other end snaps in locating slot 311.Multiple stator blade 100 is arranged on piecewise on stator ring 200 and then welds, and by the location of boss 110 and locating slot 311, for fixed blade when spot welding and soldering, meets the requirement of stator blade 100 to uniform, established angle and height.Can also comprise before positioning fixture at stator clamp and stator blade 100 and positioning fixture are cleaned.
Stator ring 200 is clamped in after on positioning fixture and is positioned by welding, then stator assembly is dosed solder by positioning fixture and enters stove and carry out soldering.By machining removing boss 110 after soldering completes.The processing method of engine stator assembly completes.
The present invention has following beneficial effect: boss 110 is arranged at the head end of stator blade 100, and stator blade 100 one end is connected to stator ring 200 wall body, and the other end is coordinated with locating slot 311 by boss 110 locates.Boss 110 and locating slot 311 are processed wide irrelevant with the profile tolerance of stator blade 100, string, and thus dimensional accuracy and processing uniformity easily ensure, can meet the requirement of engine stator assembly to uniform, established angle and height.
The present invention has following beneficial effect: boss 110 is arranged at the head end of stator blade 100, and stator blade 100 one end is connected to stator ring 200 wall body, and the other end is coordinated with locating slot 311 by boss 110 locates.Boss 110 and locating slot 311 are processed wide irrelevant with the profile tolerance of stator blade 100, string, and thus dimensional accuracy and processing uniformity easily ensure, can meet the requirement of engine stator assembly to uniform, established angle and height.
Further, stator blade 100 and stator ring 200 are located by laser spot welding.Stator blade 100 welds with stator ring 200 to locate and generally adopts argon arc welding to weld to locate, argon arc welding tack weld is large, oxidation is serious, postwelding very easily produces the weld defects such as the discontinuous and seepage of weld seam, and argon arc welding spot welding residual stress is large, and postwelding part is very easily out of shape.Change argon arc welding location into laser spot welding location, Laser Welding solder joint is little, and oxidation is slight, and welding stress is little, solves welding seam leakage, problem that discontinuous and stator ring 200 is out of shape.
Further, with reference to Fig. 3, boss 110 is square boss, and the axis of boss 110 overlaps with the long-pending folded axle of stator blade 100.Square boss, is placed on locating slot 311 and axial rotation is less likely to occur, thus more stable, and square boss compound with regular structure, and be convenient to processing, thus machining accuracy is high, can better meet that stator blade 100 is uniform, the requirement of established angle and height.Long-pending folded axle is the benchmark of stator blade 100, and a lot of parameters of stator blade 100 are all that benchmark defines by long-pending folded axle, and the axis of boss 110, through long-pending folded axle, can make stator blade 100 locate more convenient more accurate.
Further, with reference to Fig. 3, the axial length of boss 110 is 1.75 ~ 1.85 millimeters, and the height of boss 110 in long-pending folded axle vertical direction is 0.94 ~ 1.06 millimeter.Boss 110 is the axial length of boss 110 along the direction of stator blade 100 blade profile.The boss 110 of this length range is of convenient length, and both can ensure the effect of locating, convenient removal again after soldering completes simultaneously.The boss 110 of this height can be 0.94 ~ 1.06 millimeter, both can ensure the effect of locating, convenient removal again after soldering completes simultaneously.
Further, with reference to Fig. 2, the quantity of locating slot 311 is consistent with the quantity of stator blade 100, and locating slot 311 is square groove, the groove depth of locating slot 311 is 0.94 ~ 1.06 millimeter, and groove width is the projection width that stator blade 100 loads immediately below stator ring 200 rear boss 110.2013 so far, and adopt the method for the present embodiment to process this stator assembly 89 altogether, qualification rate reaches 97%, effectively reduces the loss due to spoiled work of this part.The stator assembly processed by the program has been examined for installing and has been achieved the first-fly of engine.
In general engine stator assembly, the quantity of stator blade 100 is 40, can the locating slot 311 of this quantity of relative set on supporting seat 310.The longitudinally height of the corresponding boss 110 of groove depth of locating slot 311, the width of the axial cross section of the corresponding boss 110 of groove width of locating slot 311.Locating slot 311 can ensure to be combined firmly with boss 110 for square groove.
Further, with reference to Fig. 1, supporting seat 310 embeds in the lower edge of stator ring 200, and compressing tablet 320 embeds in the upper edge of stator ring 200, and connector 330 is bolt.Supporting seat 310 and compressing tablet 320 are compressed by the traction of bolt, be tightly clamped in positioning fixture by stator ring 200, be convenient to welding location, prevent in moving process, stator blade 100 is separated with stator ring 200 simultaneously.Bolt makes positioning fixture clamp and dismantles all very convenient.
Further, with reference to Fig. 1, supporting seat 310 is provided with the support portion 340 supporting stator blade 100 bottom.The pressure of a part of stator blade 100 can be born in support portion 340, and when stator blade 100 is located, fixing better of mirror blade, is convenient to welding.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. the processing method of an engine stator assembly, for positioning fixture auxiliary under stator blade (100) is welded in stator ring (200), described positioning fixture comprises supporting seat (310), compressing tablet (320) and connector (330), it is characterized in that, comprise the following steps:
At the head end of described stator blade (100), the boss (110) that the blade profile along described stator blade (100) extends is set;
Described supporting seat (310) arranges multiple locating slot (311) for coordinating with described boss (110), and described multiple locating slot (311) is circularly and evenly distributed;
Edge under described stator ring (200) is sheathed on described supporting seat (310), and the tail end of multiple described stator blade (100) is connected with the wall body of described stator ring (200) and described boss (110) is snapped in described locating slot (311), described compressing tablet (320) is covered the upper edge of stator ring (200), and be connected with described supporting seat (310) by described connector (330) and clamp described stator ring (200);
Described stator blade (100) is welded with described stator ring (200) and locates;
Described stator blade (100) and described stator ring (200) are carried out vacuum brazing, adopts machining to remove described boss (110), and remove described positioning fixture.
2. the processing method of engine stator assembly according to claim 1, is characterized in that, described stator blade (100) and described stator ring (200) are located by laser spot welding.
3. the processing method of engine stator assembly according to claim 1, it is characterized in that, described boss (110) is square boss, and the axis of described boss (110) overlaps with the long-pending folded axle of described stator blade (100).
4. the processing method of engine stator assembly according to claim 3, is characterized in that, the axial length of described boss (110) is 1.75 ~ 1.85 millimeters, and the longitudinal direction of described boss (110) is highly 0.94 ~ 1.06 millimeter.
5. the processing method of engine stator assembly according to claim 3, it is characterized in that, the quantity of described locating slot (311) is consistent with the quantity of described stator blade (100), described locating slot (311) is square groove, the groove depth of described locating slot (311) is 0.94 ~ 1.06 millimeter, and groove width is that described stator blade (100) loads the projection width of described stator ring (200) afterwards immediately below described boss (110).
6. the processing method of the engine stator assembly according to any one of Claims 1 to 5, it is characterized in that, described supporting seat (310) embeds in the lower edge of described stator ring (200), described compressing tablet (320) embeds in the upper edge of described stator ring (200), and described connector (330) is bolt.
7. the processing method of the engine stator assembly according to any one of Claims 1 to 5, is characterized in that, described supporting seat (310) is provided with the support portion (340) supporting described stator blade (100) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510556086.0A CN105171260A (en) | 2015-09-02 | 2015-09-02 | Method for processing engine stator component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510556086.0A CN105171260A (en) | 2015-09-02 | 2015-09-02 | Method for processing engine stator component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105171260A true CN105171260A (en) | 2015-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510556086.0A Pending CN105171260A (en) | 2015-09-02 | 2015-09-02 | Method for processing engine stator component |
Country Status (1)
| Country | Link |
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| CN (1) | CN105171260A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109365947A (en) * | 2018-12-06 | 2019-02-22 | 中国航发贵州黎阳航空动力有限公司 | The vacuum brazing clamp and method of flame tube head component |
| CN113878287A (en) * | 2021-11-10 | 2022-01-04 | 中国航发南方工业有限公司 | Positioning device and method for stator assembly welding |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3346889A1 (en) * | 1982-12-24 | 1984-06-28 | Rolls-Royce Ltd., London | METHOD FOR THE PRODUCTION OF A WELDED VAN WASHER FOR TURBO MACHINES |
| CN2675867Y (en) * | 2003-09-29 | 2005-02-02 | 上海汽轮机有限公司 | Stationary integral blade separator of impulse steam turbine |
| US20060104810A1 (en) * | 2004-11-16 | 2006-05-18 | Hagle Michael P | Method for making a repaired turbine engine stationary vane assembly and repaired assembly |
| CN201448125U (en) * | 2009-06-26 | 2010-05-05 | 常州市长昊机械有限公司 | Fixed blade of steam turbine diaphragm |
| CN101934453A (en) * | 2010-09-16 | 2011-01-05 | 青岛捷能汽轮机集团股份有限公司 | Three-dimensional direct-welding blade assembly welding system of steam turbine |
| CN102837160A (en) * | 2012-08-23 | 2012-12-26 | 沈阳黎明航空发动机(集团)有限责任公司 | Assembling precision control method of single-body blades in blisk of electron beam welding structure |
| CN203566152U (en) * | 2013-11-29 | 2014-04-30 | 沈阳黎明航空发动机(集团)有限责任公司 | Assembly welding device of stator assembly |
-
2015
- 2015-09-02 CN CN201510556086.0A patent/CN105171260A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3346889A1 (en) * | 1982-12-24 | 1984-06-28 | Rolls-Royce Ltd., London | METHOD FOR THE PRODUCTION OF A WELDED VAN WASHER FOR TURBO MACHINES |
| CN2675867Y (en) * | 2003-09-29 | 2005-02-02 | 上海汽轮机有限公司 | Stationary integral blade separator of impulse steam turbine |
| US20060104810A1 (en) * | 2004-11-16 | 2006-05-18 | Hagle Michael P | Method for making a repaired turbine engine stationary vane assembly and repaired assembly |
| CN201448125U (en) * | 2009-06-26 | 2010-05-05 | 常州市长昊机械有限公司 | Fixed blade of steam turbine diaphragm |
| CN101934453A (en) * | 2010-09-16 | 2011-01-05 | 青岛捷能汽轮机集团股份有限公司 | Three-dimensional direct-welding blade assembly welding system of steam turbine |
| CN102837160A (en) * | 2012-08-23 | 2012-12-26 | 沈阳黎明航空发动机(集团)有限责任公司 | Assembling precision control method of single-body blades in blisk of electron beam welding structure |
| CN203566152U (en) * | 2013-11-29 | 2014-04-30 | 沈阳黎明航空发动机(集团)有限责任公司 | Assembly welding device of stator assembly |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109365947A (en) * | 2018-12-06 | 2019-02-22 | 中国航发贵州黎阳航空动力有限公司 | The vacuum brazing clamp and method of flame tube head component |
| CN113878287A (en) * | 2021-11-10 | 2022-01-04 | 中国航发南方工业有限公司 | Positioning device and method for stator assembly welding |
| CN113878287B (en) * | 2021-11-10 | 2023-11-03 | 中国航发南方工业有限公司 | Positioning device and method for stator assembly welding |
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Application publication date: 20151223 |
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| RJ01 | Rejection of invention patent application after publication |