CN109128652B - Clamp for welding inner ring of static blade ring and blade - Google Patents
Clamp for welding inner ring of static blade ring and blade Download PDFInfo
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- CN109128652B CN109128652B CN201811197031.5A CN201811197031A CN109128652B CN 109128652 B CN109128652 B CN 109128652B CN 201811197031 A CN201811197031 A CN 201811197031A CN 109128652 B CN109128652 B CN 109128652B
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- 230000003068 static effect Effects 0.000 title claims abstract description 55
- 238000003466 welding Methods 0.000 title claims abstract description 46
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000007789 gas Substances 0.000 claims abstract description 15
- 229910052786 argon Inorganic materials 0.000 claims abstract description 11
- 210000003437 trachea Anatomy 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims description 42
- 238000007789 sealing Methods 0.000 claims description 30
- 238000003780 insertion Methods 0.000 claims description 9
- 230000037431 insertion Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910001105 martensitic stainless steel Inorganic materials 0.000 description 1
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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
- B23K37/00—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass
- B23K37/04—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention relates to a clamp for welding an inner ring of a static blade ring and a blade, belonging to the field of manufacturing of gas turbine components, and comprising a base, a cover plate and an air pipe for introducing argon, wherein the base is provided with an arc-shaped groove, the cover plate is covered at the notch of the arc-shaped groove to form a shape maintaining cavity with the base, the arc-shaped groove is concavely provided with a first inner ring groove and a first outer ring groove, and the cover plate is concavely provided with a second inner ring groove and a second outer ring groove; a notch is arranged on the cavity wall of the shape keeping cavity; the trachea extends into the shape-retaining chamber. Adopt above-mentioned structure, the outer loop both sides of static blade ring joint respectively in first outer annular groove and second outer annular groove, the joint is distinguished in first inner annular groove and second inner annular groove to the inner ring both sides of static blade ring to utilize arc wall and apron simultaneously, just can fix a position and spacing static blade ring, each position of guaranteeing among the welding process static blade ring can not produce relative motion, with the deflection when reducing the welding, reduce the part rejection rate.
Description
Technical Field
The invention belongs to the field of manufacturing of gas turbine parts and components, and particularly relates to a clamp for welding an inner ring of a static blade ring and a blade.
Background
The welding structure of the static blade ring of the gas turbine is complex, the static blade ring component consists of a static blade outer ring (6 sections), blades (108 pieces) and a static blade inner ring (36 sections), the blades and the static blade inner ring need to be connected by adopting an argon arc welding method, and 108 parts need to be welded together. The welding difficulty is high, the effective welding thickness is 10mm, single-side welding and double-side forming are needed, and fillet welds of R0.8-R1.8 are needed to be formed on back welding seams. The size of the blade side of the stationary blade ring cannot be machined after welding, and deformation of parts needs to be controlled during welding.
However, there is no prior art fixture for clamping the inner ring of the stationary blade ring to reduce the amount of deformation when it is welded to the blades.
Disclosure of Invention
The invention provides a clamp for welding an inner ring of a static blade ring and a blade, which is used for solving the technical problem that no clamp for clamping the inner ring of the static blade ring and the blade to reduce the deformation amount is used in the prior art when the inner ring of the static blade ring and the blade are welded.
The invention is realized by the following technical scheme: a clamp for welding an inner ring of a static blade ring and blades comprises a base, a cover plate and an air pipe for introducing argon, wherein an arc-shaped groove matched with the curvature radius of the static blade ring is formed in the base, the cover plate covers a groove opening of the arc-shaped groove to form a shape maintaining cavity with the base, the cover plate is detachably and fixedly connected to the bottom of the arc-shaped groove through a fixing screw, a first inner ring groove and a first outer ring groove for respectively positioning the inner ring and the outer ring of the static blade ring are concavely arranged on the groove wall of the arc-shaped groove opposite to the cover plate, and a second inner ring groove and a second outer ring groove for respectively positioning the inner ring and the outer ring of the static blade ring are concavely arranged on one side wall of the cover plate opposite to the arc-shaped groove;
a notch for welding is arranged on the cavity wall of the shape maintaining cavity close to the inner ring of the static blade ring;
the trachea extends into the shape-retaining chamber.
Further, in order to better realize the invention, the base comprises an outer arc block, an inner arc block and a connecting block, the connecting block is connected between the outer arc block and the inner arc block, an arc groove is formed among the outer arc block, the inner arc block and the connecting block, the first outer ring groove is formed on the outer arc block, the first inner ring groove is formed on the inner arc block, the cover plate is detachably and fixedly connected on the connecting block through a screw, and the gap is formed between the cover plate and the inner arc block;
still include A shrouding, B shrouding and C shrouding, the A shrouding is connected arc wall tank bottom is located outside the arc wall just the B shrouding with the C shrouding is connected respectively the both ends opening part of arc wall, the trachea passes the B shrouding perhaps the C shrouding stretches into in the arc wall.
Furthermore, in order to better realize the invention, the number of the connecting blocks is a plurality of blocks, the plurality of connecting blocks are arranged between the outer arc-shaped block and the inner arc-shaped block at intervals, a socket communicated with the arc-shaped groove is also arranged at the position of the outer arc-shaped block between two adjacent connecting blocks, and a clamping flange used for finely adjusting the static blade ring is inserted in the socket in a sliding manner.
Furthermore, in order to better realize the invention, the clamping flange comprises an adjusting part, an inserting part and a propping part, wherein the adjusting part, the inserting part and the propping part are connected end to form an -shaped structure, the inserting part is inserted into the socket, the adjusting part is positioned outside the arc-shaped groove, and the propping part is positioned in the arc-shaped groove;
the adjusting part is in threaded connection with a first adjusting screw of which the end part is propped against the outer arc block;
and a jacking block which is jacked on the outer ring of the static blade ring is arranged at one end part of the jacking part, which deviates from the insertion part.
Further, in order to better implement the present invention, a second adjusting screw having an end portion abutting against the cover plate to adjust the positions of the second outer ring groove and the second inner ring groove is further screwed to the outer arc block.
Furthermore, in order to better implement the present invention, the outer arc-shaped block, the inner arc-shaped block, the connecting block, the a sealing plate, the B sealing plate, the C sealing plate, and the cover plate are made of the same material as that of the stationary blade ring, and further include a first heating plate and a second heating plate, wherein the first heating plate is installed on the a sealing plate, and the second heating plate is installed on the cover plate.
Further, in order to better implement the present invention, the present invention further includes a thermocouple and a temperature controller, the temperature controller is connected to the cover plate and the a sealing plate through the thermocouple to detect the temperatures of the cover plate and the a sealing plate, and the temperature controller is connected to both the first heating plate and the second heating plate to control the heating temperatures of the first heating plate and the second heating plate.
Further, in order to better implement the present invention, the first heating plate and the second heating plate are both ceramic heating plates.
Furthermore, in order to better implement the invention, the heating plate further comprises a binding piece, the first heating plate is detachably and fixedly arranged on the A closing plate through one binding piece, and the second heating plate is detachably and fixedly arranged on the cover plate through the other binding piece.
Further, in order to better implement the invention, the support leg for supporting is further included, and the support leg is connected to the outer arc-shaped block.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a clamp for welding an inner ring and blades of a static blade ring, which is characterized in that a cover plate is covered at the notch of an arc-shaped groove on a base, an inner ring and a first outer ring groove which are used for respectively positioning the inner ring and the outer ring of the static blade ring are concavely arranged on the wall of the arc-shaped groove, a second inner ring groove and a second outer ring groove which are used for respectively positioning the inner ring and the outer ring of the static blade ring are concavely arranged on the wall of the cover plate opposite to the arc-shaped groove, when in use, the two sides of the outer ring of the static blade ring are respectively clamped in the first outer ring groove and the second outer ring groove, the two sides of the inner ring of the static blade ring are respectively clamped in the first inner ring groove and the second inner ring groove, and the cover plate is detachably and fixedly arranged at the bottom of the arc-shaped groove through fixing screws, so that the positions of the inner ring and the outer ring of the static blade ring relative to the, the cavity wall of the inner ring of the static blade ring is provided with a notch, so that a welding gun can be extended into the cavity when the inner ring and the blades are welded, argon is introduced into the cavity through an air pipe, and during welding, the shape of the static blade ring can be kept due to the limiting and positioning functions of the cavity wall of the shape keeping cavity between the arc-shaped groove wall and the cover plate, and the deformation of the static blade ring in the welding process is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of a fixture for welding a stationary blade ring inner ring to a blade in accordance with the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a schematic view of the base of the present invention;
FIG. 4 is a schematic view of the cover plate when mounted on the base;
FIG. 5 is a cross-sectional view of the base shown in FIG. 3;
FIG. 6 is a cross-sectional view of a cover plate in the present invention;
FIG. 7 is a schematic view of the structure of the Kalan of the present invention.
FIG. 1-base; 101-an outer arc block; 1011-a first outer ring groove; 1012-socket; 102-an inner arc block; 1021-a first inner ring groove; 2-cover plate; 201-a second inner ring groove; 202-a second outer ring groove; 3-the trachea; 4-notch; 5-fixing screws; 6-A closing plate; 7-B closing plate; 8-C closing plate; 9-Kalan; 901-an adjusting part; 902-a plug-in part; 903-a tightening part; 10-a first adjustment screw; 11-a top block; 12-a second adjustment screw; 13-a first heating plate; 14-a second heating plate; 15-a thermocouple; 16-a temperature controller; 17-a binding; 18-a leg; 19-stationary blade ring.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Example 1:
in the embodiment, a be used for stationary blade ring inner ring and blade welded anchor clamps, including base 1, apron 2 and the trachea 3 that lets in argon gas, the arc wall has been seted up on the base 1, the shape of this arc wall and the radius of curvature looks adaptation of waiting welded stationary blade ring 19, above-mentioned apron 2 closing cap can dismantle fixed connection at the arc wall tank bottom at the notch department of this arc wall and through set screw 5, at this moment, form the shape between this apron 2 and the above-mentioned arc wall and keep the chamber, during the welding, at first place stationary blade ring 19 in the arc wall, cover apron 2 afterwards, utilize the limiting action of apron 2, make stationary blade ring 19 block in the shape keeps the chamber, guarantee that the inside and outside loop radial no relative motion of stationary blade ring 19 in the welding process.
In this embodiment, a first inner ring groove 1021 for positioning the inner ring of the stationary vane ring 19 and a first outer ring groove 1011 for positioning the outer ring of the stationary vane ring 19 are concavely provided on the wall of the arc-shaped groove opposite to the cover plate 2, when the stationary vane ring 19 is placed in the arc-shaped groove, one side of the outer ring is clamped in the first outer ring groove 1011, and one side of the inner ring is clamped in the first inner ring groove 1021, so as to position the stationary vane ring 19 in the arc-shaped groove and form a restriction. A second inner ring groove 201 and a second outer ring groove 202 are concavely arranged on one side wall of the cover plate 2 opposite to the arc-shaped groove, when the cover plate 2 is covered on the notch of the arc-shaped groove, the second inner ring groove 201 will be clamped at the other side of the inner ring of the static blade ring 19 to form a limit, the second outer ring groove 202 will be clamped at the other side of the outer ring of the static blade ring 19 to form a limit, and at the moment, the cavity formed among the first inner ring groove 1021, the first outer ring groove 1011, the second inner ring groove 201, the second outer ring groove 202, the arc-shaped groove and the cover plate 2 is the shape maintaining cavity. The inner ring of the stationary blade ring 19 is firmly caught by the first inner ring groove 1021 and the second inner ring groove 201, and the outer ring of the stationary blade ring 19 is firmly caught by the first outer ring groove 1011 and the second outer ring groove 202, so that the stationary blade ring 19 is completely positioned and firmly caught in the shape retaining cavity to reduce its deformation at the time of welding.
In order to facilitate the welding of the inner ring of the stationary blade ring 19 to its blades by the operator, in this embodiment, notches 4 are provided in the wall of the shape-retaining chamber adjacent to the inner ring of the stationary blade ring 19 for the purpose of extending into a welding gun for the welding action.
In addition, the gas pipe 3 is also inserted into the shape maintaining cavity, and the gas pipe 3 is communicated with an external argon gas source to introduce argon gas into the shape maintaining cavity so as to meet the process requirement of welding the static blade ring 19.
By adopting the structure, the static blade ring 19 is clamped by using a simple structure during welding, the operation is convenient, the time and the labor are saved, the deformation of the static blade ring 19 is reduced, the rejection rate of parts is reduced, the production cost is greatly reduced, and the company benefit is improved.
Example 2:
as a specific implementation manner of embodiment 1, in this embodiment, the base 1 includes an outer arc block 101, an inner arc block 102, and a connection block 103, where the outer arc block 101 and the inner arc block 102 are both arc-shaped and have the same radian as the arc-shaped groove described in embodiment 1, the connection block 103 is connected between the outer arc block 101 and the inner arc block 102, and specifically, the connection block 103 is connected between the front end of the outer arc block 101 and the front end of the inner arc block 102, at this time, a groove formed by enclosing the outer arc block 101, the inner arc block 102, and the connection block 103 is the arc-shaped groove, and at this time, a groove bottom of the arc-shaped groove includes the connection block 103, and a groove wall of the arc-shaped groove includes the outer arc block 101 and the inner arc block 102. The first outer ring groove 1011 is formed in the outer arc block 101, and the first inner ring groove 102 is formed in the inner arc block 102.
The cover plate 2 is detachably and fixedly connected to the connecting block 103 through a fixing screw 5. In addition, the width of the inner arc block 102 is smaller than that of the outer arc block 101, and the cap plate 2 has a substantially flat plate-like structure, so that the notch 4 for performing the welding operation is formed between the cap plate 2 and the inner arc block 102 when the cap plate 2 is coupled to the connection block 103 by the fixing screw 5. In this case, the cavity formed between the outer arc block 101, the inner arc block 102, the connecting block 103, and the cover plate 2 is the shape maintaining cavity.
In order to make the shape-maintaining chamber be able to be sealed and achieve the effect of filling argon gas therein, in this embodiment, the shape-maintaining chamber further includes an a sealing plate 6, a B sealing plate 7, and a C sealing plate 8, wherein the a sealing plate 6 is connected to the bottom of the arc-shaped groove by screws and is located outside the arc-shaped groove to seal the bottom of the arc-shaped groove. Because the radian of the arc-shaped groove is the same as the radians of the outer arc-shaped block 101 and the inner arc-shaped block 102, two ends of the arc-shaped groove are communicated, and the B sealing plate 7 and the C sealing plate 8 are respectively connected to openings at two ends of the arc-shaped groove so as to seal the arc-shaped groove. Thus, the arc-shaped groove can be completely sealed by using the sealing plates A3, B7, C8 and the cover plate 2 to form a shape maintaining cavity only provided with the notch 4, and when the static blade ring 19 is clamped in the shape maintaining cavity, namely when the two sides of the inner ring of the static blade ring 19 are respectively clamped in the first inner ring groove 1021 and the second inner ring groove 201, the notch 4 is also sealed by the inner ring of the static blade ring 19, so that the shape maintaining cavity is a closed cavity, the gas pipe 3 penetrates through the sealing plates B7 and C8 and extends into the arc-shaped groove (namely the shape maintaining cavity), and the filled argon is filled in the closed cavity formed by the inner ring of the static blade ring 19 and the wall of the shape maintaining cavity, so that leakage does not occur, and the welding process requirements are met.
It should be noted that the end of the gas tube 3 extending into the shape-retaining cavity is provided with gas holes with a diameter of 1mmd at an interval of 5mm, and the gas tube 3 is actually inserted from one of the two sealing plates B7 and C8 and then penetrates out from the other sealing plate to ensure that the back of the welding seam is protected by argon gas.
Example 3:
in this embodiment, as a modified embodiment of the above embodiment, the number of the connecting blocks 103 is limited to several, several connecting blocks 103 are connected between the inner arc-shaped block 102 and the outer arc-shaped block 101 and are arranged at intervals, a socket 1012 communicating with the arc groove is further provided on the outer arc block 101 at a position between two adjacent connection blocks 103, and, specifically, the insertion hole 1012 is provided at the front end of the outer arc block 101, a flange 9 is inserted into the insertion hole 1012, and the collar 9 can slide up and down in the socket 1012 and the collar 9 fills in the socket 1012 to block the socket 1012 from air leakage, when the flange 9 slides up and down in the insertion hole 1012, it can act on the outer ring of the stationary blade ring 19 engaged in the first outer ring groove 1011, the position of the stationary vane ring 19 in the first outer ring groove 1011 is finely adjusted to perform the function of finely adjusting the position of the stationary vane ring 19 in the arc-shaped groove (i.e., the shape retaining chamber).
Specifically, the flange 9 includes an adjusting portion 901, an inserting portion 902 and a tightening portion 903 connected end to form a "" shape, wherein the inserting portion 902 is inserted into the insertion opening 1012, the adjusting portion 901 is located outside the arc-shaped groove, and the tightening portion 903 is located inside the arc-shaped groove, the adjusting portion 901, the inserting portion 902 and the tightening portion 903 are all substantially long-strip block-shaped structures, and the size and width of the inserting portion 902 are adapted to the insertion opening 1012 on the outer arc-shaped block 101, that is, the inserting portion 902 can move up and down in the insertion opening 1012 and can seal the insertion opening 1012.
The adjusting part 901 is screwed with a first adjusting screw 10, the end of the first adjusting screw 10 is abutted against the outer surface of the outer arc block 101, the end of the tightening part 903 opposite to the inserting part 902 is provided with a top block 11, when the outer ring of the static blade ring 19 is inserted into the first outer ring groove 1011, the top block 11 is pulled on the outer ring side wall of the static blade ring 19 to position and limit the outer ring of the static blade ring 19 with the outer arc block 101 and the first outer ring groove 1011, when an operator twists the first adjusting screw 10, the tightening part 903 and the top block 11 are driven to change the position in the shape maintaining cavity, so that the outer ring of the static blade ring 19 is attached to the first outer ring groove 1011 on the outer arc block 101, and at this time, the effect of finely adjusting the static blade ring 19 is achieved.
Example 4:
this embodiment is further improved on the basis of the above-mentioned embodiment, in this embodiment, a second adjusting screw 12 is screwed on the outer arc block 101, and the end of the second adjusting screw 12 abuts on the cover plate 2 to finely adjust the position of the cover plate 2, that is, to adjust the positions of the second inner ring groove 201 and the second outer ring groove 202 on the cover plate 2, so as to better maintain the shape of the stationary blade ring 19 in the shape maintaining cavity.
Example 5:
the embodiment is further improved on the basis of the above embodiment, the stationary blade ring 19 needs to be preheated to 400-450 DEG F (204.4-232.2 ℃) before welding, and cracks and other defects are easy to occur after welding without preheating, so that the clamp provided by the invention also has the preheating function. In this embodiment, the first heating plate 13 is attached to the a sealing plate 6, the second heating plate 14 is attached to the cover plate 2, the a sealing plate 6 is heated by the first heating plate 13, and the cover plate 2 is heated by the second heating plate 14, so that the a sealing plate 6 and the cover plate 2 are directly or indirectly in contact with the stationary blade ring 19, and thus heat can be transferred to the stationary blade ring 19 to preheat the stationary blade ring 19. In order to achieve a better preheating effect, in this embodiment, the outer arc-shaped blocks 101, the inner arc-shaped blocks 102, the connecting block 103, the a sealing plate 6, the B sealing plate 7, the C sealing plate 8 and the cover plate 2 are made of the same material as that of the stationary blade ring 19, and are all made of martensitic stainless steel, so as to ensure uniformity of heat conduction. By adopting the structure, the welding device disclosed by the invention better meets the welding process requirement when in use.
As a specific implementation manner of this embodiment, the first heating plate 13 and the second heating plate 14 in this embodiment are both ceramic heating plates, and both heating plates are detachably and fixedly connected to the a sealing plate 6 and the cover plate 2 through a binding 17. Specifically, the binding 17 comprises an omega-shaped pressing plate and a pressing screw, the pressing plate is detachably attached to the a sealing plate 6 and the cover plate 2 by the pressing screw, and the first heating plate 13 and the second heating plate 14 are respectively disposed in the region formed between the cavity of the respective binding 17 and the a sealing plate 6 or the cover plate 2. The first heating plate 13 can be mounted on the a-plate 6 and the second heating plate 14 can be mounted on the cover plate 2 without dropping well and without affecting the heat conductivity by means of the binding 17. The installation is dismantled conveniently, connects firmly, and the practicality is strong.
Of course, the present embodiment implicitly includes a power supply for powering the first heating plate 13 and the second heating plate 14.
Example 6:
this embodiment is further improved on the basis of embodiment 5, in which a thermocouple 15 and a temperature controller 16 are further provided, the temperature controller 16 is connected to the cover plate 2 and the a sealing plate 6 through the thermocouple 15 to detect the temperatures of the cover plate 2 and the a sealing plate 6, and the temperature controller 16 is connected to both the first heating plate 13 and the second heating plate 14 to control the heating temperatures of the first heating plate 13 and the second heating plate 14.
With the above structure, the effect of preheating the stationary blade ring 19 by the fixture provided by the present invention can be further improved.
Example 7:
in this embodiment, a leg 18 for supporting is further connected to the outer arc end of the outer arc block 101, and specifically, the leg 18 is screwed on the outer arc block 101. With this configuration, the present invention can be supported by the legs 18 so that the notch 4 (i.e., the welding operation position) faces upward for easy operation when clamping the stationary blade ring 19 and welding.
In addition, a hook (not shown) is connected to the inner arc end of the inner arc block 102, so that the user can move the present invention as desired.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (7)
1. The utility model provides a be used for static blade ring inner ring and blade welded anchor clamps which characterized in that: the device comprises a base, a cover plate and a gas pipe for introducing argon, wherein an arc-shaped groove matched with the curvature radius of a static blade ring is formed in the base, a shape maintaining cavity is formed between the notch of the arc-shaped groove and the base by the cover plate, the cover plate is detachably and fixedly connected to the bottom of the arc-shaped groove through a fixing screw, a first inner ring groove and a first outer ring groove for respectively positioning an inner ring and an outer ring of the static blade ring are concavely arranged on the groove wall of the arc-shaped groove opposite to the cover plate, and a second inner ring groove and a second outer ring groove for respectively positioning the inner ring and the outer ring of the static blade ring are concavely arranged on one side wall of the cover plate opposite to the arc-shaped groove;
a notch for welding is arranged on the cavity wall of the shape maintaining cavity close to the inner ring of the static blade ring;
the trachea extends into the shape-retaining cavity;
the base comprises an outer arc-shaped block, an inner arc-shaped block and a connecting block, the connecting block is connected between the outer arc-shaped block and the inner arc-shaped block, arc-shaped grooves are formed among the outer arc-shaped block, the inner arc-shaped block and the connecting block, a first outer ring groove is formed in the outer arc-shaped block, a first inner ring groove is formed in the inner arc-shaped block, the cover plate is detachably and fixedly connected to the connecting block through screws, and a gap is formed between the cover plate and the inner arc-shaped block;
the air pipe penetrates through the B sealing plate and the C sealing plate and extends into the arc-shaped groove;
the number of the connecting blocks is a plurality of blocks, the plurality of connecting blocks are arranged between the outer arc-shaped block and the inner arc-shaped block at intervals, a socket communicated with the arc-shaped groove is further arranged at a position, between two adjacent connecting blocks, of the outer arc-shaped block, and a clamping flange used for finely adjusting the static blade ring is inserted into the socket in a sliding mode;
the clamping flange comprises an adjusting part, an inserting part and a propping part, the adjusting part, the inserting part and the propping part are connected end to form an -shaped structure, the inserting part is inserted into the socket, the adjusting part is positioned outside the arc-shaped groove, and the propping part is positioned in the arc-shaped groove;
the adjusting part is in threaded connection with a first adjusting screw of which the end part is propped against the outer arc block;
and a jacking block which is jacked on the outer ring of the static blade ring is arranged at one end part of the jacking part, which deviates from the insertion part.
2. The fixture for welding a ring inner ring of a stationary blade to a blade of claim 1, wherein: and the outer arc-shaped block is also in threaded connection with a second adjusting screw, the end part of the second adjusting screw is propped against the cover plate so as to adjust the positions of the second outer ring groove and the second inner ring groove.
3. A fixture for welding a stationary blade ring inner ring to a blade according to claim 1 or 2, wherein: the outer arc-shaped block, the inner arc-shaped block, the connecting block, the A closing plate, the B closing plate, the C closing plate and the cover plate are made of the same material as that of the static blade ring, and the outer arc-shaped block, the inner arc-shaped block, the connecting block, the A closing plate, the B closing plate, the C closing plate and the cover plate are made of the same material as that of the static blade ring.
4. The fixture for welding a ring inner ring of a stationary blade to a blade of claim 3, wherein: still include thermocouple and temperature controller, temperature controller passes through the thermocouple with the apron and the A shrouding is connected in order to detect the apron with the temperature of A shrouding, temperature controller with first hot plate with the second hot plate all is connected in order to control first hot plate with the heating temperature of second hot plate.
5. The fixture for welding a ring inner ring of a stationary blade to a blade of claim 4, wherein: the first heating plate and the second heating plate are both ceramic heating plates.
6. The fixture for welding a ring inner ring of a stationary blade to a blade of claim 5, wherein: the first heating plate is detachably and fixedly arranged on the A sealing plate through one binding piece, and the second heating plate is detachably and fixedly arranged on the cover plate through the other binding piece.
7. A fixture for welding a stationary blade ring inner ring to a blade according to claim 1 or 2, wherein: the support leg is connected to the outer arc block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811197031.5A CN109128652B (en) | 2018-10-15 | 2018-10-15 | Clamp for welding inner ring of static blade ring and blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811197031.5A CN109128652B (en) | 2018-10-15 | 2018-10-15 | Clamp for welding inner ring of static blade ring and blade |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109128652A CN109128652A (en) | 2019-01-04 |
| CN109128652B true CN109128652B (en) | 2020-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811197031.5A Active CN109128652B (en) | 2018-10-15 | 2018-10-15 | Clamp for welding inner ring of static blade ring and blade |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7025563B2 (en) * | 2003-12-19 | 2006-04-11 | United Technologies Corporation | Stator vane assembly for a gas turbine engine |
| EP2754855A1 (en) * | 2013-01-14 | 2014-07-16 | Siemens Aktiengesellschaft | Device for clamping a turbine blade |
| CN105290559B (en) * | 2015-11-12 | 2017-10-03 | 西安航空动力股份有限公司 | A kind of stator blade secter pat weld assembly percussion spot welding positioning clamping device |
| CN206010267U (en) * | 2016-09-27 | 2017-03-15 | 中航湖南通用航空发动机有限公司 | Blade ring module fixture and its pressing plate |
| CN206614276U (en) * | 2017-03-17 | 2017-11-07 | 四川大金不锈钢有限公司 | A kind of stator blade ring fixture |
| CN108031944B (en) * | 2017-12-05 | 2020-01-07 | 中国航发沈阳黎明航空发动机有限责任公司 | Fan-shaped clamp and method for reducing welding deformation of blade assembly |
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