CN120461036B - Welding device and method for producing turbine blade - Google Patents
Welding device and method for producing turbine bladeInfo
- Publication number
- CN120461036B CN120461036B CN202510978250.0A CN202510978250A CN120461036B CN 120461036 B CN120461036 B CN 120461036B CN 202510978250 A CN202510978250 A CN 202510978250A CN 120461036 B CN120461036 B CN 120461036B
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- welding
- impeller
- blade
- rod
- rotating
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Abstract
The invention relates to the technical field of turbine blade welding devices, in particular to a welding device and a method for producing turbine blades, wherein the welding device comprises a base; the support rod is arranged at the top end of the base, one side of the support rod is provided with a mechanical arm, and the mechanical arm is provided with a welding head for welding operation; the welding auxiliary assembly is rotationally arranged on one side of the fixed disc and comprises a rotating disc, and a plurality of groups of impeller top contact assemblies are slidingly arranged on the rotating disc. In the practical use process, the invention can effectively adapt to impellers of different specifications for fixing, can effectively adapt to the impellers for carrying out auxiliary limiting on the corresponding number of blades, ensures that the blades are supported in an auxiliary manner in the welding process, reduces the phenomenon that the welding precision is affected due to uneven weight distribution on the impellers in the welding process, and ensures the effective use of finished products.
Description
Technical Field
The invention relates to the technical field of turbine blade welding devices, in particular to a welding device and method for producing turbine blades.
Background
The working principle of the steam turbine is a process of converting thermal energy based on steam into mechanical energy. After being accelerated by the fixed nozzle, the high-temperature and high-pressure steam is sprayed onto the blades to drive the rotor with the blade row to rotate, so that power is generated. This conversion process enables the turbine to efficiently convert the thermal energy of the steam into mechanical energy. The device is widely applied to the direction of power devices of ships in electric power, metallurgy and chemical industries.
In the production process of the steam turbine, the rotating part plays an extremely important role. In actual production, the root of the blade is usually inserted into the root slot of the impeller. However, when the blades are welded with the impeller, the problem that the whole weight of the impeller is unevenly distributed in the process of one-by-one welding by one inserting and arranging the blades on the impeller is easily caused, so that the welding precision is affected, and the effect of the whole rotating part is finally affected. Therefore, a welding device and a method for producing the turbine blade are provided.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a welding device and a method for producing turbine blades.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
A welding apparatus for use in the production of steam turbine blades, comprising:
A base;
the support rod is arranged at the top end of the base, one side of the support rod is provided with a mechanical arm, and the mechanical arm is provided with a welding head for welding operation;
the support frame is arranged on the other side of the top end of the base, and a fixed disc is arranged on the side surface of the top end of the support frame;
The welding auxiliary assembly is rotationally arranged on one side of the fixed disc and comprises a rotating disc, a plurality of groups of impeller propping assemblies are slidably arranged on the rotating disc and used for propping against the inner sides of impellers to realize the purpose of fixedly mounting the impellers with different pipe diameters, a rotating ring is rotationally arranged on the outer side of the rotating disc, an annular limiting groove is formed in the rotating ring, a blade auxiliary clamp is slidably arranged in the limiting groove and used for propping, limiting and fixing the turbine blades, the blades are stably clamped during welding, and the phenomenon that the welding precision is affected due to uneven weight distribution of the impellers caused by welding is reduced;
the driving motor is arranged on the other side of the fixed disc and used for driving the welding auxiliary assembly to integrally rotate, so that the angle adjustment of the blade during welding is convenient, and the replacement operation of the welded blade is facilitated.
As a preferable technical scheme of the application, a fixed shaft rod fixedly connected with a fixed disc is fixedly arranged at the center of one side of the rotating disc, a sliding ring is sleeved on the outer side of the fixed shaft rod in a sliding way, a hinge rod is hinged between the outer side of the sliding ring and a corresponding meshing tooth block, and the top end of the sliding ring is connected with a top contact spring sleeved on the outer side of the fixed shaft rod, so that under the action of the top contact spring, the sliding ring pushes the hinge rod to deflect, an impeller top contact assembly is enabled to collide against impellers on the inner side of the impellers, the purpose of collision and fixation of the impellers with different sizes is achieved, the impellers with different sizes are conveniently adapted in the actual welding process, and the stable operation of the welding process is facilitated;
The impeller top touches the subassembly and includes spacing thick pole, one side fixedly connected with of spacing thick pole is contradicted the pole, and the diameter of contradicting the pole is less than the diameter of spacing thick pole, evenly offered the step form direction through-hole in a plurality of directional centre of a circle of group on the rolling disc, and the impeller top touches the subassembly and slide and set up in step form direction through-hole, the equal fixedly connected with direction side pipe in both sides of spacing thick pole, and the rolling disc has offered the spacing spout with direction side pipe adaptation in step form direction through-hole's both sides inner wall department to effectively guarantee the stable slip direction of impeller top touch the subassembly.
As a preferable technical scheme of the application, the blade auxiliary clamp comprises a T-shaped sliding seat, two groups of rotating clamping seats are rotatably arranged at the top end of the T-shaped sliding seat, telescopic rods are respectively arranged on the rotating clamping seats in a penetrating manner, clamping springs are sleeved outside the telescopic rods, arc clamping plates are fixedly connected to one ends of the telescopic rods, which are close to each other, the arc clamping plates are arc-shaped, the arc clamping plates are matched with the arrangement of the clamping springs to effectively support and fix blade bodies, and the rotatable rotating clamping seats are matched with the arrangement of the rotatable rotating clamping seats to effectively support and limit blades at different angles, so that the telescopic clamping plates are convenient to adaptively clamp and fix, and auxiliary operation is performed for the subsequent blade welding process.
As a preferable technical scheme of the application, one side of the T-shaped sliding seat is fixedly provided with the fixed lug, the fixed lug is penetrated with the positioning spring, the outer side of one end of the positioning spring penetrating through the fixed lug is sleeved with the telescopic fixed rod, and the whole blade auxiliary clamp can stably abut against the surface of the rotating ring in the setting process through the arrangement of the telescopic fixed rod and the positioning spring, so that the position fixing of the blade auxiliary clamp is realized.
As a preferable technical scheme of the application, the rotating ring is provided with the notch which is communicated with the annular limiting chute and used for increasing or decreasing the auxiliary clamp of the blades according to the requirements, so that the welding requirements of the blades with different numbers can be met conveniently.
As a preferable technical scheme of the application, the side, far away from the blade auxiliary clamp, of the rotating ring is fixedly provided with the meshing toothed ring, the back surface of the rotating disc is fixedly provided with the pneumatic push rod, the output shaft of the pneumatic push rod is fixedly connected with the meshing toothed block, and the meshing toothed block is meshed with the pneumatic push rod, so that the meshing toothed ring is effectively clamped by means of the arrangement of the pneumatic push rod and the meshing toothed block, the relative relation between the rotating disc and the rotating ring is effectively locked and unlocked in the adjustment process, the position adjustment of the blade auxiliary clamp or the integral synchronous rotation of the rotating ring, the blade auxiliary clamp and the rotating disc in the welding process are conveniently carried out according to requirements, and convenience is provided for the welding preamble and the welding process.
As a preferable technical scheme of the application, the back of the rotating ring is fixedly provided with a plurality of groups of connecting rods, the connecting rods are fixedly connected with sliding seats, and the side surfaces of the fixed discs are provided with annular sliding rails matched with the sliding seats, so that the stability of the rotating ring in the rotating process is ensured.
A welding method of a welding device for producing turbine blades comprises the following steps:
Step S1, moving a sliding ring, compressing a top contact spring, realizing deflection of a hinge rod, driving an impeller top contact assembly to move, sleeving an impeller for welding blades on the outer side of the impeller top contact assembly, resetting the sliding ring under the action of the top contact spring, realizing position adjustment of the impeller top contact assembly, and abutting and fixing the impeller from the inner side of the impeller;
S2, selecting a proper number of blade auxiliary clamps according to the number of blades to be welded, installing the blade auxiliary clamps one by one at the notches on the rotating ring, and adjusting the distribution of the blade auxiliary clamps on the side surface of the rotating ring to correspond to the blade root grooves on the impeller;
S3, inserting blades for welding into the inner sides of corresponding blade root grooves on the impeller one by one, starting a pneumatic push rod in the process, enabling the meshing tooth blocks to retract, relieving the meshing relation between the meshing tooth blocks and the meshing tooth rings, conveniently and effectively realizing that the rotating rings drive the blade auxiliary clamps to rotate, conveniently realizing the matching of the blade auxiliary clamps and the blade root grooves on the impeller, stably clamping the blades under the action of arc clamping plates on the blade auxiliary clamps, ensuring that the blades are supported to a certain extent in the process before and after welding, and reducing the phenomenon that the welding precision is affected in the welding process due to uneven weight;
Step S4, start the arm for the soldered connection is close to the impeller of contradicting, carry out welding operation to inserting between blade and the impeller on establishing the impeller, at this in-process, start pneumatic push rod, make the meshing tooth piece stretch out, realize meshing tooth piece and meshing ring gear' S meshing, thereby ensure the synchronous revolution of swivel ring, blade auxiliary fixture and rolling disc, guarantee the relative static between blade and the impeller of centre gripping, make things convenient for the position conversion of waiting welded blade in the welding process, and cooperate the setting of blade root groove on the impeller with the help of blade auxiliary fixture, realize the effective support of blade, reduce the load to impeller itself, ensure actual welding accuracy.
The beneficial effects of the invention are as follows:
1. In the actual welding process, through the arrangement of the blade auxiliary clamps with adjustable quantity, the effective auxiliary clamping of different quantity of blades when being welded on the impeller is realized, and the auxiliary support of the blades in the process before and after the welding is realized by matching with the arrangement of blade root grooves on the impeller, in the process, the blades are firstly all inserted on the impeller and supported and fixed by the aid of the blade auxiliary clamps, so that the phenomenon that the welding precision is influenced due to uneven overall weight distribution of the impeller caused by blade welding is reduced;
2. Through the arrangement of the rotating clamping seat on the blade auxiliary clamp, the telescopic rod, the clamping spring and the arc clamping plate are assisted, so that the blades in different forms can be effectively and stably clamped, and the stable auxiliary effect is better achieved for the actual welding process;
3. through the arrangement of the pneumatic push rod, the meshing gear block and the sliding ring, the relative motion state between the rotating ring and the rotating disc is regulated and controlled, so that the regulation of the auxiliary clamp of the blade and the welding process are controlled.
In summary, the application can effectively adapt to impellers of different specifications for fixing in the actual use process, and can effectively adapt to the impellers for carrying out auxiliary limiting on the corresponding number of the blades, thereby ensuring that the blades are supported in an auxiliary manner in the welding process, reducing the phenomenon of influencing the welding precision due to uneven weight distribution on the impellers in the welding process, and ensuring the effective use of finished products.
Drawings
FIG. 1 is a schematic view of a welding device for producing turbine blades according to the present invention;
FIG. 2 is a schematic diagram showing a front view of a welding device for producing turbine blades according to the present invention;
FIG. 3 is a schematic view of a welding auxiliary assembly of a welding device for producing turbine blades according to the present invention;
FIG. 4 is a schematic view of another view angle of a welding auxiliary assembly of a welding device for producing turbine blades according to the present invention;
FIG. 5 is a schematic view of a blade auxiliary fixture of a welding device for producing turbine blades according to the present invention;
Fig. 6 is a schematic structural diagram of an impeller contact assembly for a welding device for producing a turbine blade according to the present invention.
1, A base, 2, a supporting rod, 3, a mechanical arm, 4, a welding auxiliary assembly, 41, a rotating disc, 42, a blade auxiliary clamp, 421, a T-shaped sliding seat, 422, a rotating clamp seat, 423, a telescopic rod, 424, a clamping spring, 425, an arc clamping plate, 426, a fixed lug, 427, a telescopic fixed rod, 428, a positioning spring, 43, an impeller contact assembly, 431, a limiting thick rod, 432, a contact rod, 433, a guiding square tube, 44, a connecting rod, 45, a sliding seat, 46, a rotating ring, 47, a pneumatic push rod, 48, a meshing tooth block, 49, a meshing tooth ring, 410, a hinging rod, 411, a sliding ring, 412, a fixed shaft rod, 413, a contact spring, 5, a fixed disc, 6, a supporting frame, 7 and a driving motor.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1 to 6, a welding apparatus for producing a turbine blade, comprising:
a base 1;
The support rod 2 is arranged at the top end of the base 1, one side of the support rod 2 is provided with a mechanical arm 3, and the mechanical arm 3 is provided with a welding head for welding operation;
The support frame 6 is arranged on the other side of the top end of the base 1, and a fixed disc 5 is arranged on the side surface of the top end of the support frame 6;
the welding auxiliary assembly 4 is rotationally arranged on one side of the fixed disc 5, the welding auxiliary assembly 4 comprises a rotating disc 41, a plurality of groups of impeller propping assemblies 43 are slidably arranged on the rotating disc 41 and used for propping against the inner sides of impellers to realize the purpose of fixedly mounting the impellers with different pipe diameters, a rotating ring 46 is rotationally arranged on the outer side of the rotating disc 41, an annular limiting groove is arranged on the rotating ring 46, a blade auxiliary clamp 42 is slidably arranged in the limiting groove and used for propping, limiting and fixing the turbine blades, the blades are stably clamped during welding, and the phenomenon that the welding precision is influenced due to uneven weight distribution of the impellers caused by welding is reduced;
the driving motor 7 is arranged on the other side of the fixed disc 5 and is used for driving the welding auxiliary assembly 4 to integrally rotate, so that the angle adjustment of the blade during welding is facilitated, and the replacement operation of the welded blade is facilitated;
The back of the rotating ring 46 is fixedly provided with a plurality of groups of connecting rods 44, the connecting rods 44 are fixedly connected with sliding seats 45, and the side surfaces of the fixed discs 5 are provided with annular sliding rails matched with the sliding seats 45, so that the stability of the rotating ring 46 in the rotating process is ensured.
Referring to fig. 3 to 4 and 6, a fixed shaft lever 412 fixedly connected with the fixed disk 5 is fixedly installed at the center of one side of the rotating disk 41, a sliding ring 411 is sleeved on the outer side of the fixed shaft lever 412 in a sliding manner, a hinge rod 410 is hinged between the outer side of the sliding ring 411 and a corresponding meshing tooth block 48, and the top end of the sliding ring 411 is connected with a top contact spring 413 sleeved on the outer side of the fixed shaft lever 412, so that under the action of the top contact spring 413, the sliding ring 411 pushes the hinge rod 410 to deflect, and the impeller top contact assembly 43 is enabled to collide against the impeller at the inner side of the impeller, so that the purpose of collision fixation of impellers of different sizes is achieved, impellers of different sizes are conveniently adapted in the actual welding process, and the stable welding process is facilitated;
The impeller top touches subassembly 43 includes spacing thick pole 431, one side fixedly connected with of spacing thick pole 431 is contradicted pole 432, and the diameter of contradicting pole 432 is less than the diameter of spacing thick pole 431, evenly set up the step form direction through-hole at a plurality of directional centre of a circle on the rolling disc 41, and impeller top touches subassembly 43 slip setting in step form direction through-hole, the equal fixedly connected with direction side pipe 433 in both sides of spacing thick pole 431, and rolling disc 41 has seted up the spacing spout with direction side pipe 433 adaptation in step form direction through-hole's both sides inner wall department, thereby effectively guarantee the stable slip direction of impeller top touch subassembly 43.
Referring to fig. 5, the auxiliary fixture 42 for the blade comprises a T-shaped slide 421, two sets of rotating clamping seats 422 are rotatably arranged at the top end of the T-shaped slide 421, telescopic rods 423 are respectively arranged on the rotating clamping seats 422 in a penetrating manner, clamping springs 424 are sleeved outside the telescopic rods 423, one ends of the telescopic rods 423, which are close to each other, are fixedly connected with arc clamping plates 425, the arc clamping plates 425 are arc-shaped, the setting of the arc clamping plates 425 is matched with the setting of the arc clamping plates 425, the setting of the springs 424 is used for effectively abutting and fixing blade bodies, and the setting of the rotatable rotating clamping seats 422 is matched, so that the blade bodies with different angles are effectively abutted and limited, the adaptive clamping and fixing are convenient, and the auxiliary operation is performed for the subsequent blade welding process.
One side fixed mounting of T shape slide 421 has fixed ear piece 426, runs through on the fixed ear piece 426 and is provided with positioning spring 428, and positioning spring 428 runs through the one end outside cover of fixed ear piece 426 and is equipped with flexible dead lever 427, through the setting of flexible dead lever 427 and positioning spring 428 for the whole in-process that sets up of blade auxiliary clamp 42 can be stabilized and contradicted on the rotor ring 46 surface, realizes the fixed position of blade auxiliary clamp 42.
Referring to fig. 3 to 4, the rotating ring 46 is provided with a notch, and the notch is communicated with the annular limiting chute, so as to increase or decrease the auxiliary fixture 42 of the blade according to the requirement, thereby facilitating the welding requirements of different numbers of blades.
The rotating ring 46 is kept away from one side of the auxiliary fixture 42 of blade and is fixedly provided with the meshing toothed ring 49, and the back of the rotating disc 41 is fixedly provided with the pneumatic push rod 47, the output shaft of the pneumatic push rod 47 is fixedly connected with the meshing toothed block 48, and the meshing toothed block 48 is meshed with the pneumatic push rod 47, so that the meshing toothed ring 49 is effectively clamped by means of the arrangement of the pneumatic push rod 47 and the meshing toothed block 48, thereby the relative relation between the rotating disc 41 and the rotating ring 46 is effectively locked and unlocked in the adjustment process, the position adjustment of the auxiliary fixture 42 of blade or the integral synchronous rotation of the rotating ring 46 and the auxiliary fixture 42 of blade and the rotating disc 41 in the welding process are conveniently carried out according to the requirements, and convenience is provided for the welding process and the front.
A welding method of a welding device for producing turbine blades comprises the following steps:
Step S1, firstly moving a sliding ring 411, further compressing a top contact spring 413, realizing deflection of a hinge rod 410, driving an impeller top contact assembly 43 to move, sleeving an impeller for welding blades on the outer side of the impeller top contact assembly 43, resetting the sliding ring 411 under the action of the top contact spring 413, realizing position adjustment of the impeller top contact assembly 43, and abutting and fixing the impeller from the inner side of the impeller;
step S2, selecting proper number of auxiliary blade clamps 42 according to the number of blades to be welded, installing the auxiliary blade clamps 42 one by one at the notches on the rotating ring 46, and adjusting the distribution of the auxiliary blade clamps 42 on the side surface of the rotating ring 46 to correspond to the blade root grooves on the impeller;
Step S3, inserting blades for welding into the inner sides of corresponding blade root grooves on the impeller one by one, starting a pneumatic push rod 47 in the process, enabling the meshing tooth blocks 48 to retract, relieving the meshing relation between the meshing tooth blocks 48 and the meshing tooth rings 49, conveniently and effectively realizing that the rotating ring 46 drives the blade auxiliary clamp 42 to rotate, conveniently realizing that the blade auxiliary clamp 42 is matched with the blade root grooves on the impeller, stably clamping the blades under the action of an arc clamping plate 425 on the blade auxiliary clamp 42, ensuring that the blades are supported to a certain extent in the process before and after welding, and reducing the phenomenon that the welding accuracy is influenced in the welding process due to uneven weight;
Step S4, start the arm 3, make the soldered connection close to the impeller of contradicting, carry out the welding operation to inserting between blade and the impeller on establishing the impeller, in this process, start the pneumatic push rod 47, make the meshing tooth piece 48 stretch out, realize meshing tooth piece 48 and meshing tooth ring 49' S meshing, thereby ensure the synchronous rotation of swivel 46, blade auxiliary fixture 42 and rolling disc 41, thereby guarantee the relative static between blade and the impeller of centre gripping, the convenient position conversion of the blade of waiting to weld in the welding process, and cooperate the setting of blade root groove on the impeller with the help of blade auxiliary fixture 42, realize the effective support of blade, reduce the load to impeller itself, ensure actual welding accuracy.
It should finally be noted that in the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediary, or in communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
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| Application Number | Priority Date | Filing Date | Title |
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| CN202510978250.0A CN120461036B (en) | 2025-07-16 | 2025-07-16 | Welding device and method for producing turbine blade |
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| CN202510978250.0A CN120461036B (en) | 2025-07-16 | 2025-07-16 | Welding device and method for producing turbine blade |
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| CN120461036A CN120461036A (en) | 2025-08-12 |
| CN120461036B true CN120461036B (en) | 2025-09-26 |
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| CN218836537U (en) * | 2022-09-06 | 2023-04-11 | 浙江当代风机有限公司 | Axial fan impeller blade fixed-position welding device |
| CN118305524A (en) * | 2024-06-07 | 2024-07-09 | 青州源博华机械有限公司 | Negative pressure type fan impeller welding device |
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| KR101644960B1 (en) * | 2015-05-26 | 2016-08-03 | (주) 대웅기계 | Automotive Parts welding equipment |
| CN112475743B (en) * | 2020-10-10 | 2022-04-12 | 浙江铭振电子股份有限公司 | Welding rotating platform of wind wheel and welding equipment applying welding rotating platform |
| CN214641369U (en) * | 2021-02-25 | 2021-11-09 | 苏州市峰驰精密机电有限公司 | Frock is used in impeller equipment |
| CN114799697A (en) * | 2022-05-25 | 2022-07-29 | 赣州中科拓又达智能装备科技有限公司 | Utilize intellectual detection system equipment of robot production |
| KR102466650B1 (en) * | 2022-05-31 | 2022-11-16 | 지엠기공 주식회사 | The automatic welding system for screw blade welding |
| CN117260153A (en) * | 2023-11-17 | 2023-12-22 | 英飞同仁(江苏)风机有限公司 | Welding device for processing fan impeller |
| CN221833698U (en) * | 2023-12-21 | 2024-10-15 | 临沂易云自动化科技有限公司 | Double-station overturning positioner of welding robot |
| CN118951554B (en) * | 2024-09-19 | 2025-09-09 | 抚州发那特机械科技有限公司 | Novel welding platform for nozzle ring production |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN218836537U (en) * | 2022-09-06 | 2023-04-11 | 浙江当代风机有限公司 | Axial fan impeller blade fixed-position welding device |
| CN118305524A (en) * | 2024-06-07 | 2024-07-09 | 青州源博华机械有限公司 | Negative pressure type fan impeller welding device |
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