Water turbine runner welding device

Abstract

The invention discloses a water turbine runner welding device which comprises a transfer positioning assembly and a welding assembly. The transfer positioning assembly is composed of an indexing rotary disc A and an indexing rotary disc B. Two sets of evenly-distributed positioning chucks A are arranged on the indexing rotary disc A and used for fixing a positioning ring. And the indexing turntable B is provided with three groups of uniformly distributed positioning chucks B for fixing the runner main body or the positioning table, and the positioning chucks B are used for uniformly arranging and positioning the blades. The welding assembly is matched with the indexing rotary table A and the indexing rotary table B and comprises a rotating ring A and a rotating ring B which are provided with a laser welding gun A and a laser welding gun B correspondingly. The laser welding gun A is responsible for welding the connecting position of the positioning ring and the blade, and the laser welding gun B is responsible for welding the connecting position of the rotating wheel body and the blade. The welding precision and efficiency are remarkably improved, risks caused by manual operation are reduced, meanwhile, the production environment is improved, and the requirement for modern water turbine manufacturing is fully met. High-quality welding can be achieved, the production process is optimized, and the overall production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of water turbine runner production, in particular to a water turbine runner welding device. Background Art

[0002] In the manufacturing and maintenance of modern water turbines, the runner is a key component, and its welding quality directly affects the operating efficiency and life of the turbine. However, the welding of water turbine runners on the market currently mainly relies on manual operation and lacks dedicated welding equipment. This situation not only makes the welding process extremely dependent on the experience and skills of the workers, but also leads to a series of problems such as insufficient welding accuracy and low welding efficiency.

[0003] Traditional welding methods have obvious defects in welding accuracy. Workers often fail to maintain consistent welding parameters during welding, which leads to unstable strength and quality of the weld, which may affect the overall performance and safety of the turbine. In addition, the high temperature and deformation during welding will also affect the geometry of the runner, increasing the difficulty of subsequent repairs and adjustments.

[0004] Although there are some welding devices on the market, their automation level is generally low, and workers are still required to load and unload materials. This not only increases labor costs, but also increases the complexity and safety risks of production. During the welding process, workers need to intervene frequently to position, adjust and monitor, which greatly limits the efficiency and flexibility of welding equipment. An ideal welding device should be able to load and unload materials without manual assistance, maximizing production efficiency.

[0005] In addition, the welds between the blades and the main body and the positioning ring in the turbine runner are usually irregular tracks, and due to the close arrangement of the blades, it is difficult for traditional welding equipment to perform accurate welding. Existing welding equipment can usually only perform preliminary welding fixation, and then still rely on manual welding to enhance the stability of the connection. This not only prolongs the production cycle, but also increases the possibility of human error.

[0006] Therefore, there is an urgent need for a dedicated turbine runner welding device that can automate the welding process and efficiently and accurately handle the complex welding requirements inside the runner. Such a device will greatly improve welding efficiency and accuracy, reduce dependence on manual labor, reduce production costs, and improve the overall performance and reliability of the turbine. Summary of the invention

[0007] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a turbine runner welding device, which not only significantly improves the welding accuracy and efficiency, but also effectively reduces the operating risks, improves the production environment, and fully meets the needs of modern turbine manufacturing.

[0008] The technical solution adopted by the present invention to achieve the above-mentioned purpose is: a turbine runner welding device, the turbine runner includes a runner body, a positioning ring, and blades, the blades are evenly distributed in an annular array and fixedly connected to the runner body and the positioning ring, the runner body and the positioning ring are coaxially arranged and are respectively arranged on the inner and outer sides of the blades.

[0009] include: The transfer positioning component includes a dividing turntable A and a dividing turntable B. The dividing turntable A is equipped with two groups of evenly distributed positioning chucks A, and the positioning chucks A are used to fix the positioning ring. The dividing turntable B is equipped with three groups of evenly distributed positioning chucks B, and the positioning chucks B are used to fix the wheel body or the positioning platform. The positioning platform is used to evenly arrange and position the blades.

[0010] A welding assembly is arranged in conjunction with a dividing turntable A and a dividing turntable B. The welding assembly includes a rotating ring A and a rotating ring B. The rotating ring A and the rotating ring B are respectively equipped with a laser welding gun A and a laser welding gun B. The laser welding gun A is used to weld the connection position between the positioning ring and the blade, and the laser welding gun B is used to weld the connection position between the impeller body and the blade.

[0011] In some of the implementations, in order to ensure that the transfer positioning components and welding components involved can be stably installed and coordinated, and to ensure that the welding work of the turbine runner is not disturbed by the external environment, the following technical solutions are provided.

[0012] It also includes a base and a hood, wherein the hood is fixedly mounted on the base, the transfer positioning assembly is assembled on the base and arranged in the hood, and the welding assembly is assembled on the inner wall of the hood.

[0013] The machine cover is provided with a feeding port and an inlet and outlet port. The feeding port is provided with a group and arranged above the indexing turntable A, and the inlet and outlet port is provided with three groups and evenly distributed below the indexing turntable B.

[0014] In some of the implementations, in order to ensure that the transfer positioning assembly can be stably assembled on the machine and that the indexing turntable A and the indexing turntable B can operate independently, the following technical solutions are provided.

[0015] The transfer positioning assembly also includes an assembly column and a drive motor A and a drive motor B fixedly mounted on the assembly column. The dividing turntable A and the dividing turntable B are both rotatably mounted on the assembly column. The dividing turntable A is arranged directly above the dividing turntable B. The drive motor A and the drive motor B are respectively connected to the dividing turntable A and the dividing turntable B in terms of power.

[0016] In some of the implementations, in order to ensure that the positioning chuck A can be stably installed on the dividing turntable A, and to ensure that the positioning chuck A can realize the designed operating function, so that the positioning chuck A can drive the fixed components to operate or limit the operation, the following technical solutions are provided.

[0017] The indexing turntable A is provided with two groups of assembly openings A distributed in a ring array, the positioning chuck A is installed in the assembly openings A in a relatively rotatable manner, the outer edge of the positioning chuck A is evenly provided with card slots, the indexing turntable A is fixedly provided with an electric telescopic cylinder arranged radially along the positioning chuck A, and the movable end of the electric telescopic cylinder is fixedly connected with a card key that is nested and engaged with the card slot.

[0018] In some of the implementations, in order to ensure that the positioning chuck B can be stably installed on the dividing turntable B, and to ensure that the positioning chuck B can realize the designed operating function, so that the positioning chuck B can drive the fixed components to move up and down along the axial direction, the following technical solutions are provided.

[0019] The indexing turntable B is provided with three groups of assembly openings B distributed in a circular row. The positioning chuck B is arranged above the assembly openings B. The bottom of the positioning chuck B is fixedly connected with multiple groups of guide rods and adjustment screws. The guide rods and the indexing turntable B are kept in sliding connection.

[0020] An inner gear ring and a rotating gear are rotatably installed in the indexing turntable B. The rotating gear is rotationally connected to the adjusting screw, and the rotating gear is meshed with the inner gear ring. A driving motor C is also fixedly installed at the bottom of the indexing turntable, and the driving motor C is dynamically connected to the inner gear ring.

[0021] In some of the implementations, in order to ensure that the runner body, the positioning platform and the assembled and welded turbine runner can enter and exit the hood through the inlet and outlet openings, and to enable the runner body, the positioning platform and the turbine runner to be disassembled and assembled onto the positioning chuck B, the following technical solutions are provided.

[0022] It also includes a transfer component installed in the inlet and outlet, and the transfer component includes an assembly bracket, a transmission roller, a drive motor D, a hydraulic telescopic cylinder, and a positioning cushion seat. The assembly bracket is fixedly installed at the inlet and outlet, and multiple groups of transmission rollers arranged side by side are rotatably installed on the assembly bracket. The drive motor is power-connected to the transmission roller, the hydraulic telescopic cylinder is fixedly installed on the base and arranged in the vertical direction, and the positioning cushion seat is fixedly installed on the movable end of the hydraulic telescopic cylinder and arranged in the gap between the transmission rollers.

[0023] In some of the implementations, in order to ensure that the parts transported by the transfer assembly can be nested and plugged into the positioning pad below to achieve cooperation between the two, and then the positioning pad can effectively carry the transferred parts, an arc-shaped positioning seat is fixedly connected to the inner end of the assembly bracket.

[0024] In some of the implementations, in order to ensure that the rotating ring A and the rotating ring B in the welding assembly can be stably installed in a relatively rotating manner, to ensure the stable operation of the rotating ring A and the rotating ring B, and to use the laser welding guns A and B thereon to stably weld the various components of the turbine runner, the following technical solutions are provided.

[0025] The inner wall of the hood is fixedly connected with a mounting bracket, the rotating ring A and the rotating ring B are rotatably mounted on the mounting bracket and are respectively arranged on the upper and lower sides of the indexing turntable A, and the peripheries of the rotating ring A and the rotating ring B are fixedly connected with transmission spur gears.

[0026] The welding assembly also includes a driving motor E, a driving shaft and two sets of oppositely arranged ratchet mechanisms. The driving motor E is fixedly mounted on the mounting bracket, the driving shaft is rotatably mounted on the mounting bracket and maintains a power connection with the driving motor E, the driving shaft is power-connected to the two sets of the ratchet mechanisms, and the two sets of ratchet mechanisms are respectively power-connected to the two sets of the transmission spur gears.

[0027] In some of the implementations, in order to ensure that the recording mechanism can achieve the purpose of power split transmission so as to drive the rotating ring A or the rotating ring B to operate independently, the following technical solutions are provided.

[0028] The ratchet mechanism includes a driving spur gear, an inner ratchet, a pawl, and a leaf spring. The driving spur gear is rotatably mounted on the mounting bracket and is meshed with the corresponding transmission spur gear. The inner ratchet is coaxially fixedly connected with the driving spur gear. The driving shaft passes through the axial arrangement of the driving spur gear. The pawl is rotatably mounted on the periphery of the driving shaft and is meshed with the inner ratchet. The leaf spring is arranged between the pawl and the driving shaft.

[0029] Since the welding trajectory between the blade, the positioning ring and the rotor body is a relatively complex curve and there is a height difference, in order to ensure that the laser welding gun A and the laser welding gun B can accurately weld the blade, the following technical solution is provided.

[0030] A robot arm A is fixedly mounted on the rotating ring A, and the laser welding gun A is fixedly mounted on the robot arm A; a robot arm B is fixedly mounted on the rotating ring B, and the laser welding gun B is fixedly mounted on the robot arm B.

[0031] Beneficial effects of the present invention: 1. Improve welding accuracy. This device can ensure the stability of parameters during the welding process without relying on manual experience, significantly improve welding accuracy, ensure the consistency of weld strength and quality, and thus improve the overall performance and safety of the turbine.

[0032] 2. Improve welding efficiency. Through the fully automated welding process, the device reduces manual intervention and significantly shortens the production cycle. The welding efficiency is greatly improved, the labor cost is reduced, and higher economic benefits are brought to the enterprise.

[0033] 3. Flexible response to irregular welds. This device is specially designed for the irregular welds between the blades and the runner body and the positioning ring in the turbine runner. It can flexibly adjust the welding path to ensure the accuracy of welding and reduce the reliance on manual welding in traditional methods.

[0034] 4. Reduce operational risks. Automated operation reduces the working time of workers in high-temperature welding environments, reduces safety risks, and improves operational safety. In addition, the equipment's efficient welding capacity reduces subsequent repairs and adjustments caused by welding quality problems, thereby reducing overall maintenance costs.

[0035] 5. Improve the production environment. After using the welding device, the environment of the production site will be improved, workers can stay away from high temperature and harmful gases, and improve the comfort and safety of the working environment.

[0036] In summary, the turbine runner welding device of this scheme not only significantly improves the welding accuracy and efficiency, but also effectively reduces the operation risk, improves the production environment, and fully meets the needs of modern turbine manufacturing. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the structure of a water turbine runner; Figure 3 This is a schematic diagram of the structure of the present invention after the hood is removed; Figure 4 It is a schematic diagram of the structure of the transfer positioning component; Figure 5 It is a schematic diagram of the cutaway and disassembled indexing turntable A; Figure 6 It is a structural schematic diagram of the positioning chuck A and related components; Figure 7 It is a structural schematic diagram of the indexing turntable B; Figure 8 It is a structural schematic diagram of the positioning chuck B and related components; Fig. 9 It is a schematic diagram of the structure of the transfer component; Fig.10 It is a structural diagram of the combination of the transmission roller, hydraulic telescopic cylinder and positioning cushion seat; Fig.11 It is a structural schematic diagram of a welding assembly; Fig.12 It is a schematic diagram of the structure of the ratchet mechanism and related components; Fig.13 for Fig.12 Detailed diagram after cutting and disassembly.

[0038] In the figure: 11 a rotating wheel body, 12 a positioning ring, 13 a blade, 14 a positioning platform, 2 a transfer positioning assembly, 21 a dividing turntable A, 211 a positioning chuck A, 2111 a card slot, 212 a transmission bevel gear A, 213 an assembly port A, 214 an electric telescopic cylinder, 215 a card key, 22 a dividing turntable B, 221 a positioning chuck B, 2211 a guide rod, 2212 an adjusting screw, 222 a transmission bevel gear B, 223 an assembly port B, 224 an inner gear ring, 2241 a transmission bevel gear C, 225 a rotating gear, 226 a driving motor C, 2261 a driving bevel gear C, 23 an assembly column, 231 a mounting pad, 24 a driving motor A, 241 a driving bevel gear A, 25 a driving motor B, 251 a driving bevel gear Gear B, 3 welding assembly, 31 rotating ring A, 311 laser welding gun A, 312 mechanical arm A, 32 rotating ring B, 321 laser welding gun B, 322 mechanical arm B, 33 transmission spur gear, 34 driving motor E, 341 driving bevel gear D, 35 driving shaft, 351 transmission bevel gear D, 361 driving spur gear, 362 inner ratchet, 363 pawl, 364 reed, 4 transfer assembly, 41 assembly bracket, 411 assembly pad, 412 arc positioning seat, 42 transmission roller, 421 transmission sprocket, 422 yield ring groove, 43 driving motor D, 44 hydraulic telescopic cylinder, 45 positioning pad, 51 base, 52 machine cover, 521 feeding port, 522 inlet and outlet port, 523 mounting bracket. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Example 1 See also Figure 1-3A turbine runner welding device, the turbine runner includes a runner body 11, a positioning ring 12, and blades 13. The blades 13 are evenly distributed in a ring array and fixed to the runner body 11 and the positioning ring 12. The runner body 11 and the positioning ring 12 are coaxially arranged and are respectively arranged on the inner and outer sides of the blades 13.

[0041] include: The transfer positioning component 2 includes a dividing turntable A21 and a dividing turntable B22. The dividing turntable A21 is equipped with two groups of evenly distributed positioning chucks A211, and the positioning chucks A211 are used to fix the positioning ring 12. The dividing turntable B22 is equipped with three groups of evenly distributed positioning chucks B221, and the positioning chucks B221 are used to fix the wheel body 11 or the positioning platform 14. The positioning platform 14 is used to evenly arrange and position the blades 13.

[0042] Welding assembly 3, welding assembly 3 is arranged in conjunction with dividing turntable A21 and dividing turntable B22, welding assembly 3 includes rotating ring A31 and rotating ring B32, rotating ring A31 and rotating ring B32 are respectively equipped with laser welding gun A311 and laser welding gun B321, laser welding gun A311 is used to weld the connection position between the positioning ring 12 and the blade 13, and laser welding gun B321 is used to weld the connection position between the impeller body 11 and the blade 13.

[0043] The runner body 11 is used for installation on the main shaft of the turbine. The blades 13 are fixed to the periphery of the runner body 11 to bear the force of the water flow impact and convert it into kinetic energy for the rotation of the main shaft. The positioning ring 12 can enhance the stability of the installation of the blades 13 and enable the turbine runner to operate stably in a relative rotation manner in the chamber.

[0044] The indexing turntable A21 is used to receive the conveyed positioning ring 12 and fix it through the positioning chuck A211. When the indexing turntable A21 rotates as a whole, the fixed positioning chuck A211 is transferred to the other side.

[0045] The indexing turntable B22 is used to receive the conveyed positioning table 14 and fix it through the positioning chuck B221, and evenly arrange and position the blades 13 to be assembled and welded on the positioning table 14, and when the indexing turntable rotates as a whole, the positioning table 14 equipped with the blades 13 is kept vertically opposite to the positioning ring 12 on the indexing turntable A21, and the blades 13 and the positioning ring 12 are accurately docked, and then the welding combination of each blade 13 and the positioning ring 12 is realized through the coordinated operation of the rotating ring A31 and the laser welding gun A311, and then the positioning chuck B221 drives the positioning table 14 to move to separate the positioning table 14 from the welded and fixed blades 13, and when the indexing turntable B22 is in the reverse operation state, the positioning table 14 is reset to replace the positioning table 14 loaded with new blades 13, or reload the blades 13 onto the positioning table 14.

[0046] The dividing turntable B22 is also used to receive the conveyed impeller body 11 and fix it through the positioning chuck. When the dividing turntable rotates as a whole, the impeller body 11 and the positioning ring 12 and blade 13 combination on the dividing turntable A are kept vertically opposite to each other, and the impeller body 11 and the blades 13 are accurately docked. Then, through the coordinated operation of the rotating ring B32 and the laser welding gun B321, the welding combination of the impeller body 11 and each blade 13 is realized to form a complete turbine runner. Then, the positioning chuck A211 is released and the turbine runner formed by the positioning chuck B221 at the corresponding position is received. After the dividing turntable B22 is reset, the welded turbine runner is output.

[0047] In order to ensure that the transfer positioning assembly 2 and the welding assembly 3 involved can be stably installed and coordinated for operation, and to ensure that the welding work of the turbine runner is not disturbed by the external environment, the following technical solution is provided.

[0048] It also includes a base 51 and a hood 52 . The hood 52 is fixedly mounted on the base 51 . The transfer positioning component 2 is assembled on the base 51 and arranged in the hood 52 . The welding component 3 is assembled on the inner wall of the hood 52 .

[0049] The machine cover 52 is provided with a feeding port 521 and an inlet and outlet port 522. A group of feeding ports 521 is provided and arranged above the indexing turntable A21, and three groups of inlet and outlet ports 522 are provided and evenly distributed below the indexing turntable B22.

[0050] The arrangement of the base 51 and the hood 52 can ensure the stable installation of the transfer positioning assembly 2 and the welding assembly 3, and at the same time can ensure that the welding work of the turbine runner is carried out inside the hood 52 to avoid direct contact with the external environment, thereby ensuring the stable progress of the welding work.

[0051] The feeding port 521 can ensure that the positioning ring 12 can enter the inner side of the hood 52 and be assembled into the positioning chuck A211. In a specific implementation scheme, the positioning ring 12 can be fed to the dividing turntable A21 through a robotic arm or other feeding equipment.

[0052] The inlet and outlet openings 522 can ensure that the positioning platform 14, the runner body 11 and the welded turbine runner can perform corresponding loading and unloading operations, so as to feed or unload the dividing turntable B22.

[0053] Example 2 See also Figure 3-8 In order to ensure that the transfer positioning component 2 can be stably assembled on the machine and that the indexing turntable A21 and the indexing turntable B22 can operate independently, the following technical solutions are provided.

[0054] The transfer positioning component 2 also includes an assembly column 23 and a drive motor A24 and a drive motor B25 fixedly mounted on the assembly column 23. The dividing turntable A21 and the dividing turntable B22 are both rotatably mounted on the assembly column 23. The dividing turntable A21 is arranged directly above the dividing turntable B22. The drive motor A24 and the drive motor B25 are respectively connected to the dividing turntable A21 and the dividing turntable B22 for power.

[0055] Two sets of mounting pads 231 arranged at different heights are fixedly connected to the assembly column 23, and the drive motor A24 and the drive motor B25 are fixedly installed on the corresponding mounting pads 231, and the output shafts of the drive motor A24 and the drive motor B25 are fixedly connected with the drive bevel gear A241 and the drive bevel gear B251 respectively.

[0056] A transmission bevel gear A212 is fixedly connected to the axis of the indexing turntable A21, and the transmission bevel gear A212 is meshed with the driving bevel gear A241. When the driving motor A24 is working, the indexing turntable A21 can be driven to rotate through the combination of the driving bevel gear A241 and the driving bevel gear B251. The indexing turntable A21 rotates 180° each time to achieve the exchange of positions of the two sets of positioning chucks A211 thereon.

[0057] A transmission bevel gear B222 is fixedly connected to the axis of the dividing turntable B22. The transmission bevel gear B222 is meshed with the driving bevel gear B251. When the driving motor B25 is working, the dividing turntable B22 can be driven to rotate through the combination of the driving bevel gear A241 and the driving bevel gear B251. The dividing turntable B22 rotates 120° each time to realize the position change of the three sets of positioning chucks B221 thereon.

[0058] By adjusting the rotation direction of the driving motor A24 and the driving motor B25, the rotation direction of the indexing turntable A21 and the indexing turntable B22 can be controlled.

[0059] In order to ensure that the positioning chuck A211 can be stably installed on the dividing turntable A21, and to ensure that the positioning chuck A211 can realize the designed operating function, so that the positioning chuck A211 can drive the fixed components to operate or limit the operation, the following technical solution is provided.

[0060] Two groups of assembly openings A213 distributed in a circular array are provided on the dividing turntable A21. The positioning chuck A211 is installed in the assembly opening A213 in a relatively rotatable manner. The outer edge of the positioning chuck A211 is evenly provided with card grooves 2111. An electric telescopic cylinder 214 arranged radially along the positioning chuck A211 is fixedly installed on the dividing turntable A21. The movable end of the electric telescopic cylinder 214 is fixedly connected with a card key 215 which is nested and engaged with the card groove 2111.

[0061] The positioning chuck A211 is installed in the assembly opening A213 in a relatively rotatable manner. When the electric telescopic cylinder 214 is in a retracted state, it can drive the key 215 to move to the outside of the positioning chuck A211, so that the key 215 is separated from the slot 2111, thereby canceling the locking fixation of the positioning chuck A211, and allowing the positioning chuck A211 to rotate freely on the dividing turntable A21.

[0062] Normally, the positioning chuck A211 is in a locked state. After the blade 13 and the positioning ring 12 are welded together and the positioning platform 14 is separated from the blade 13, the positioning chuck A211 is in an unlocked state. Since the structure of the blade 13 has a certain curvature, when it is positioned on the positioning platform 14, the blade 13 is loaded into place by screwing in. Therefore, during the separation process of the positioning platform 14 and the blade 13, the two still need to have axial lifting and rotational movement. Specifically, the positioning platform 14 realizes lifting and lowering movement through the positioning chuck B221, and the positioning ring 12, the blade 13 and the positioning chuck A211 welded as a whole can rotate together to realize the effective separation of the blade 13 and the positioning platform 14.

[0063] In order to ensure that the positioning chuck B221 can be stably installed on the dividing turntable B22, and to ensure that the positioning chuck B221 can realize the designed operating function, so that the positioning chuck B221 can drive the fixed components to move up and down along the axial direction, the following technical solution is provided.

[0064] The indexing turntable B22 is provided with three groups of assembly openings B223 distributed in a ring shape, the positioning chuck B221 is arranged above the assembly openings B223, and the bottom of the positioning chuck B221 is fixedly connected with multiple groups of guide rods 2211 and adjusting screws 2212, and the guide rods 2211 are slidably connected with the indexing turntable B22.

[0065] An inner gear ring 224 and a rotating gear 225 are rotatably installed in the dividing turntable B22. The rotating gear 225 is rotationally connected to the adjusting screw 2212, and the rotating gear 225 is meshed with the inner gear ring 224. A driving motor C226 is also fixedly installed at the bottom of the dividing turntable, and the driving motor C226 is poweredly connected to the inner gear ring 224.

[0066] At the assembly and welding position, the assembly opening A213 on the dividing turntable A21 and the assembly opening B223 on the dividing turntable B22 are coaxially arranged, and the positioning chucks A211 and B221 are annular in structure, which can ensure that the wheel body 11, the positioning ring 12, and the blades 13 can freely pass through the positioning chucks A211, B221 and the assembly openings A213 and B223, thereby facilitating the installation and disassembly of various components.

[0067] The guide rod 2211 provided on the positioning chuck B221 can ensure that the positioning chuck and the components fixed thereon can be stably lifted and lowered in the vertical direction.

[0068] A driving bevel gear C2261 is fixedly connected to the output shaft of the driving motor C226, and a transmission bevel gear C2241 that meshes with the driving bevel gear C2261 is fixedly connected to the outer edge of the inner gear ring 224. The driving motor C226 can drive the inner gear ring 224 to operate stably through the combination of the driving bevel gear C2261 and the transmission bevel gear C2241, and the inner gear ring 224 can drive each group of rotating gears 225 to operate synchronously, thereby realizing stable control of the lifting and lowering movement of the positioning chuck B221 in cooperation with the adjusting screw 2212.

[0069] When the positioning chuck is raised, the positioning platform 14 with blades 13 can be driven to rise and dock with the positioning ring 12, and the runner body 11 can be driven to rise and dock with the welded blades 13. When the positioning chuck is lowered, the vacant positioning platform 14 can be driven to descend to the indexing turntable B22, and the assembled and welded turbine runner can be driven to descend to the indexing turntable B22.

[0070] Example 3 See also Figure 1 , 9 , 10, in order to ensure that the runner body 11, the positioning platform 14 and the assembled and welded turbine runner can enter and exit the hood 52 through the inlet and outlet opening 522, and to realize the disassembly and assembly of the runner body 11, the positioning platform 14 and the turbine runner onto the positioning chuck B221, the following technical solution is provided.

[0071] It also includes a transfer assembly 4 assembled in the inlet and outlet opening 522, the transfer assembly 4 includes an assembly bracket 41, a transmission roller 42, a drive motor D43, a hydraulic telescopic cylinder 44, and a positioning cushion seat 45. The assembly bracket 41 is fixedly installed at the inlet and outlet opening 522, and multiple groups of transmission rollers 42 arranged side by side are rotatably installed on the assembly bracket 41. The drive motor is power-connected to the transmission rollers 42. The hydraulic telescopic cylinder 44 is fixedly installed on the base and arranged in the vertical direction. The positioning cushion seat 45 is fixedly installed on the movable end of the hydraulic telescopic cylinder 44 and arranged in the gap between the transmission rollers 42.

[0072] The setting of the assembly bracket 41 can ensure that the transmission roller 42 is stably installed thereon in a relatively rotating manner. An assembly pad 411 is fixedly connected to the outer side of the assembly bracket 41, and the drive motor D43 is fixedly installed on the assembly pad 411. The output shaft of the drive motor D43 is directly connected to one group of transmission rollers 42. The end of each group of transmission rollers 42 is fixedly connected to a transmission sprocket 421. The transmission sprockets 421 on two adjacent groups of transmission rollers 42 realize chain transmission through chains. When the drive motor D43 is running, it can drive the groups of transmission rollers 42 to maintain synchronous operation, thereby realizing stable transportation of the transfer parts at both ends of the assembly bracket 41.

[0073] The positioning pad 45 can be plugged into the impeller body 11 or the positioning platform 14, and cooperate with the hydraulic telescopic cylinder 44 to drive the positioning pad 45 to move up and down, so that the positioning pad 45 can stably support the impeller body 11, the positioning platform 14 or the welded turbine impeller and move up and down, so as to realize the stable transfer of components between the transmission roller 42 and the positioning chuck B221.

[0074] In order to avoid spatial interference between the positioning seat 45 and the transmission roller 42, the transmission rollers 42 arranged on both sides of the positioning seat 45 are provided with clearance ring grooves 422, so that the positioning seat 45 can be normally lifted and lowered through the clearance ring grooves 422 when it moves up and down.

[0075] In order to ensure that the parts transported by the transfer assembly 4 can be nested and plugged into the positioning pad 45 below to achieve cooperation between the two, and then the positioning pad 45 can effectively carry the transferred parts, an arc-shaped positioning seat 412 is fixed to the inner end of the assembly bracket 41.

[0076] When the wheel body 11 and the positioning platform 14 transmitted from the outside of the hood 52 reach the inner end of the assembly bracket 41, they are limited by the arc-shaped positioning seat 412 and no longer move. At this time, the positioning pad 45 is just vertically opposite to the wheel body 11 and the positioning platform 14. When the positioning pad 45 is driven to rise by the hydraulic telescopic cylinder 44, it can effectively support the wheel body 11 and the positioning platform 14 and move upward.

[0077] Example 4 See also Figure 3 , 10 -13, in order to ensure that the rotating ring A31 and the rotating ring B32 in the welding assembly 3 can be stably installed in a relatively rotating manner, to ensure the stable operation of the rotating ring A31 and the rotating ring B32, and to stably weld the various components of the turbine runner with the help of the laser welding guns A311 and B321 thereon, the following technical solution is provided.

[0078] A mounting bracket 523 is fixedly connected to the inner wall of the hood 52. The rotating ring A31 and the rotating ring B32 are rotatably mounted on the mounting bracket 523 and are respectively arranged on the upper and lower sides of the dividing turntable A21. The outer peripheries of the rotating ring A31 and the rotating ring B32 are fixedly connected to the transmission spur gears 33.

[0079] The welding assembly 3 also includes a driving motor E34, a driving shaft 35 and two sets of oppositely arranged ratchet mechanisms. The driving motor E34 is fixedly mounted on the mounting bracket 523, the driving shaft 35 is rotatably mounted on the mounting bracket 523 and maintains a power connection with the driving motor E34, the driving shaft 35 is power-connected to the two sets of ratchet mechanisms, and the two sets of ratchet mechanisms are respectively power-connected to the two sets of transmission spur gears 33.

[0080] The setting of the mounting bracket 523 can ensure the stable installation of the components in the welding assembly 3. The drive shaft 35 is arranged in the vertical direction, and a transmission bevel gear D351 is fixedly connected to it, and a drive bevel gear D341 that is meshed with the transmission bevel gear D351 is fixedly connected to the output shaft of the drive motor E34.

[0081] The rotating ring A31 and the rotating ring B32 are arranged concentrically with the positioning chucks A211 and the positioning chucks B221 for assembling the turbine runner.

[0082] When the driving motor E34 drives the driving shaft 35 to rotate, according to the different rotation directions, different powers can be used through the corresponding ratchet mechanism to drive the rotating ring A31 or the rotating ring B32 to operate stably, thereby driving the laser welding gun A311 and the laser welding gun B321 installed thereon to rotate around the axis of the rotating wheel body 11 and the positioning ring 12, thereby realizing the welding work.

[0083] In order to ensure that the recording mechanism can achieve the purpose of power diversion transmission, so as to drive the rotating ring A31 or the rotating ring B32 to operate independently, the following technical solution is provided.

[0084] The ratchet mechanism includes a driving spur gear 361, an inner ratchet 362, a pawl 363, and a spring leaf 364. The driving spur gear 361 is rotatably mounted on the mounting bracket 523 and is meshed with the corresponding transmission spur gear 33. The inner ratchet 362 is coaxially fixedly connected with the driving spur gear 361. The driving shaft 35 passes through the axial arrangement of the driving spur gear 361. The pawl 363 is rotatably mounted on the periphery of the driving shaft 35 and is meshed with the inner ratchet 362. The spring leaf 364 is arranged between the pawl 363 and the driving shaft 35.

[0085] When the driving shaft 35 rotates, it can drive the pawl 363 thereon to rotate. Since the pawls 363 in the two sets of ratchet mechanisms are arranged in opposite directions, the driving shaft 35 rotating in a specific direction can only drive the corresponding inner ratchet 362 to rotate through the corresponding pawl 363, and then drive the rotating ring A31 or the rotating ring B32 to operate stably through the combination of the driving spur gear 361 and the transmission spur gear 33, thereby driving the laser welding gun A311 or the laser welding gun B321 to rotate around the axis of the turbine runner.

[0086] Since the welding trajectory of the blade 13, the positioning ring 12 and the rotor body 11 is a relatively complex curve and there is a height difference, in order to ensure that the laser welding gun A311 and the laser welding gun B321 can accurately weld the blade 13, the following technical solution is provided.

[0087] A robot arm A312 is fixedly mounted on the rotating ring A31, and a laser welding gun A311 is fixedly mounted on the robot arm A312. A robot arm B322 is fixedly mounted on the rotating ring B32, and a laser welding gun B321 is fixedly mounted on the robot arm B322.

[0088] The provision of the robot arms A312 and B322 can increase the degrees of freedom of the laser welding guns A311 and B321, thereby ensuring that the blades 13 can be accurately welded.

[0089] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0090] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A turbine runner welding device, the turbine runner comprising a runner body (11), a positioning ring (12), and blades (13), the blades (13) being evenly distributed in an annular array and fixedly connected to the runner body (11) and the positioning ring (12), the runner body (11) and the positioning ring (12) being coaxially arranged and respectively arranged on inner and outer sides of the blades (13); It is characterized in that include: A transfer positioning assembly (2), the transfer positioning assembly (2) comprising a graduated turntable A (21) and a graduated turntable B (22), the graduated turntable A (21) being equipped with two groups of evenly distributed positioning chucks A (211), the positioning chucks A (211) being used to fix the positioning ring (12), the graduated turntable B (22) being equipped with three groups of evenly distributed positioning chucks B (221), the positioning chucks B (221) being used to fix the wheel body (11) or the positioning platform (14), the positioning platform (14) being used to evenly arrange and position the blades (13); A welding assembly (3), the welding assembly (3) being arranged in conjunction with a graduated turntable A (21) and a graduated turntable B (22), the welding assembly (3) comprising a rotating ring A (31) and a rotating ring B (32), the rotating ring A (31) and the rotating ring B (32) being respectively equipped with a laser welding gun A (311) and a laser welding gun B (321), the laser welding gun A (311) being used to weld a connection position between a positioning ring (12) and a blade (13), and the laser welding gun B (321) being used to weld a connection position between a rotor body (11) and a blade (13).

2. A turbine runner welding device according to claim 1, characterized in that: It also includes a base (51) and a hood (52), wherein the hood (52) is fixedly mounted on the base (51), the transfer positioning assembly (2) is mounted on the base (51) and arranged in the hood (52), and the welding assembly (3) is mounted on the inner wall of the hood (52); The machine cover (52) is provided with a loading port (521) and an inlet and outlet port (522); the loading port (521) is provided in a group and is arranged above the indexing turntable A (21); the inlet and outlet port (522) is provided in three groups and is evenly distributed below the indexing turntable B (22).

3. A turbine runner welding device according to claim 2, characterized in that: The transfer positioning assembly (2) further comprises an assembly column (23) and a drive motor A (24) and a drive motor B (25) fixedly mounted on the assembly column (23); the indexing turntable A (21) and the indexing turntable B (22) are both rotatably mounted on the assembly column (23); the indexing turntable A (21) is arranged directly above the indexing turntable B (22); and the drive motor A (24) and the drive motor B (25) are respectively connected to the indexing turntable A (21) and the indexing turntable B (22) in power.

4. A turbine runner welding device according to claim 3, characterized in that: The indexing turntable A (21) is provided with two groups of assembly openings A (213) distributed in a ring array, the positioning chuck A (211) is installed in the assembly openings A (213) in a relatively rotatable manner, the outer edge of the positioning chuck A (211) is evenly provided with card slots (2111), the indexing turntable A (21) is fixedly provided with an electric telescopic cylinder (214) arranged radially along the positioning chuck A (211), and the movable end of the electric telescopic cylinder (214) is fixedly connected with a card key (215) nested and carded with the card slot (2111).

5. A turbine runner welding device according to claim 3, characterized in that: The indexing turntable B (22) is provided with three groups of assembly openings B (223) arranged in a circular row, the positioning chuck B (221) is arranged above the assembly openings B (223), the bottom of the positioning chuck B (221) is fixedly connected with multiple groups of guide rods (2211) and adjustment screws (2212), and the guide rods (2211) are slidably plugged with the indexing turntable B (22); An inner gear ring (224) and a rotating gear (225) are rotatably mounted in the indexing turntable B (22); the rotating gear (225) is rotationally connected to the adjusting screw (2212); and the rotating gear (225) is meshed with the inner gear ring (224); a driving motor C (226) is also fixedly mounted at the bottom of the indexing turntable; the driving motor C (226) is power-connected to the inner gear ring (224).

6. A turbine runner welding device according to claim 5, characterized in that: The invention also comprises a transfer assembly (4) assembled in the inlet and outlet opening (522), wherein the transfer assembly (4) comprises an assembly bracket (41), a transmission roller (42), a drive motor D (43), a hydraulic telescopic cylinder (44), and a positioning cushion seat (45). The assembly bracket (41) is fixedly mounted at the inlet and outlet opening (522), a plurality of groups of transmission rollers (42) arranged side by side are rotatably mounted on the assembly bracket (41), the drive motor is power-connected to the transmission rollers (42), the hydraulic telescopic cylinder (44) is fixedly mounted on the base and arranged in the vertical direction, and the positioning cushion seat (45) is fixedly mounted on the movable end of the hydraulic telescopic cylinder (44) and arranged at the gap between the transmission rollers (42).

7. A turbine runner welding device according to claim 6, characterized in that: An arc-shaped positioning seat (412) is fixedly connected to the inner end of the assembly bracket (41).

8. A turbine runner welding device according to claim 2, characterized in that: The inner wall of the hood (52) is fixedly connected with a mounting bracket (523); the rotating ring A (31) and the rotating ring B (32) are rotatably mounted on the mounting bracket (523) and are respectively arranged on the upper and lower sides of the indexing turntable A (21); and the outer peripheries of the rotating ring A (31) and the rotating ring B (32) are fixedly connected with transmission spur gears (33); The welding assembly (3) further comprises a driving motor E (34), a driving shaft (35), and two sets of ratchet mechanisms arranged oppositely, wherein the driving motor E (34) is fixedly mounted on the mounting bracket (523), the driving shaft (35) is rotatably mounted on the mounting bracket (523) and maintains a power connection with the driving motor E (34), the driving shaft (35) is power-connected to the two sets of ratchet mechanisms, and the two sets of ratchet mechanisms are respectively power-connected to the two sets of transmission spur gears (33).

9. A turbine runner welding device according to claim 8, characterized in that: The ratchet mechanism comprises a driving spur gear (361), an inner ratchet (362), a pawl (363), and a leaf spring (364); the driving spur gear (361) is rotatably mounted on the mounting bracket (523) and is kept in mesh with the corresponding transmission spur gear (33); the inner ratchet (362) and the driving spur gear (361) are kept coaxially fixed; the driving shaft (35) passes through the axis of the driving spur gear (361); the pawl (363) is rotatably mounted on the periphery of the driving shaft (35) and is kept in mesh with the inner ratchet (362); and the leaf spring (364) is arranged between the pawl (363) and the driving shaft (35).

10. A turbine runner welding device according to claim 9, characterized in that: A mechanical arm A (312) is fixedly mounted on the rotating ring A (31), and the laser welding gun A (311) is fixedly mounted on the mechanical arm A (312). A mechanical arm B (322) is fixedly mounted on the rotating ring B (32), and the laser welding gun B (321) is fixedly mounted on the mechanical arm B (322).

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