Water turbine runner welding device

Abstract

The invention discloses a water turbine runner welding device which comprises a lifting set, a welding set and a welding set, the lifting set is provided with an outer clamping claw capable of being used for grabbing a runner body, and the lifting set can conduct swing lifting action; the rotating set and the lifting set are oppositely arranged, the rotating set is provided with an inner clamping jaw used for clamping and fixing the rotating wheel body, and the inner clamping jaw can rotate; the grabbing and positioning set is arranged above the lifting set and the rotating set, the grabbing and positioning set is provided with a grabbing block capable of horizontally sliding, a first electromagnetic attraction block used for attracting the runner blades is arranged in the grabbing block, and a welding set is integrated on the grabbing block; and the transferring set is arranged below the grabbing and positioning set, the transferring set is provided with a rotatable conveying belt, and the conveying belt is provided with a plurality of positioning blocks used for transferring the runner blades. The automatic welding device has the beneficial effects that the automation degree is high, welding operation is convenient and simple, the welding quality is improved, and the product quality is guaranteed.

Description

Technical Field

[0001] This invention relates to the technical field of water turbine processing, and in particular to a water turbine runner welding device. Background Technology

[0002] The turbine runner, as the heart of a hydroelectric generator, is a key component that converts the potential energy of water into kinetic energy. Typically, a hydroelectric turbine runner consists of a set of blades twisted into a specific shape and arranged in a certain pattern on the runner shaft. Water flows over the surface of the blades, impacting the runner and causing it to rotate, thereby achieving the purpose of energy conversion.

[0003] Currently, when welding turbine runners, the runner body and runner blades are often welded on a fixture that holds the runner body and runner blades in place. This method has a low degree of automation and is complex to operate, which affects operational efficiency.

[0004] To improve the automation of rotary welding and reduce the complexity of operation, existing welding equipment needs to be improved. Summary of the Invention

[0005] The present invention aims to overcome the shortcomings of existing technologies, such as inconvenient operation and poor welding results, and provides a turbine runner welding device that is simple and convenient to operate, highly automated, and produces excellent welding results.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a turbine runner welding device, comprising: The lifting assembly is equipped with external claws for gripping the main body of the rotating wheel, and the lifting assembly can perform a swing lifting action; The rotating assembly is arranged opposite to the lifting assembly. The rotating assembly is provided with an inner clevis for mounting and fixing the main body of the rotating wheel. The inner clevis is capable of rotating. A gripping and positioning assembly is positioned above the lifting assembly and the rotating assembly. The gripping and positioning assembly is equipped with a horizontally sliding gripping block. Inside the gripping block is an electromagnetic suction block for attracting the rotor blades. The gripping block is integrated with a welding assembly. The transfer group is located below the gripping and positioning group. The transfer group is equipped with a rotatable conveyor belt, and the conveyor belt is equipped with a number of positioning blocks for rotating the wheel blades.

[0007] The turbine runner consists of an annular runner body and blade-shaped runner blades. The lifting assembly in this welding device is equipped with external grippers that can grasp and lift the runner body. Opposite the lifting assembly is a rotating assembly with internal grippers that extend into the runner body. These internal grippers support the inner wall of the runner body, securing it in place. The rotation of these internal grippers allows for adjustment of the turbine runner's angle after each weld between the runner blades and the runner body, thus facilitating the subsequent welding of the runner blades. The gripping and positioning group in this welding device is positioned above the lifting and rotating groups. This group includes a gripping block for the rotor blade to be welded. The gripping block can slide horizontally and contains an electromagnetic suction block to hold the blade in place after gripping it, ensuring stable gripping. A welding assembly is integrated onto the gripping block. The gripping block moves the blade to the rotor body, and its movement is controlled for welding positioning, coordinating with the welding assembly to weld the blade to the rotor body. A transfer group is positioned below the gripping and positioning group. This transfer group includes a rotating conveyor belt with several positioning blocks to hold the rotor blade in place. This allows the transfer group to transport the blade below the gripping and positioning group for easy gripping. This device is easy to operate and highly automated when manufacturing the main body and blades of the rotor. At the same time, it can ensure good welding results and high product processing quality.

[0008] Preferably, the lifting assembly includes a rotating base, with a lifting cylinder connected to its upper end. A retractable hydraulic cylinder is mounted on the lifting end of the lifting cylinder. A fixed plate is provided on the outer claw, with its rear end connected to the retractable end of the hydraulic cylinder. A mounting groove is provided on the front end of the fixed plate, and a second hydraulic cylinder and an outer claw are disposed within the mounting groove. The second hydraulic cylinder is fixedly installed within the mounting groove, and its end is connected to the outer claw. The lifting assembly includes a rotating base containing a rotary motor, allowing the base to rotate. A lifting cylinder is connected to the upper end of the rotating base, enabling positioning and lifting. A lifting limit can be set at the extended end of the lifting cylinder, stopping it after reaching a certain height to ensure accurate lifting height. Simultaneously, a first hydraulic cylinder is mounted on the top of the retractable end of the lifting cylinder, and an outer claw is mounted on the first hydraulic cylinder. The lifting cylinder can drive the first hydraulic cylinder to perform vertical lifting. The outer gripper is equipped with a fixed plate, which is installed at the telescopic end of the hydraulic cylinder one. Several mounting slots are provided on the front face of the fixed plate, and the mounting slots are arranged radially at equal intervals. A hydraulic cylinder two is installed inside the mounting slot, and the hydraulic cylinder two is arranged horizontally with the mounting slot. At the same time, an outer claw head is connected to the telescopic end of the hydraulic cylinder two, and the outer claw head is arranged perpendicularly with the mounting slot. The telescopic movement of the hydraulic cylinder two can drive the outer claw head to grip the main body of the rotating wheel and realize lifting and transfer, which makes the operation convenient and highly automated.

[0009] Preferably, the inner wall of the outer claw head has a toothed clamping area in the middle, and the front end of the inner wall of the outer claw head has a relief groove in which a clamping rubber block is installed. Specifically, the clamping area, which has a toothed structure, is located in the middle of the inner wall of the outer claw head, while the relief groove, in which the clamping rubber block is connected, ensures increased friction and gripping force when gripping the wheel body, thus guaranteeing effective clamping of the wheel body during gripping, lifting, and transport, and ensuring reliable transport.

[0010] Preferably, the rotating assembly includes a mounting frame, the upper end of which is connected to a stepper motor. The inner chuck is provided with a rotating block and the rotating block is connected to the rotating shaft of the stepper motor. Several hydraulic cylinders are arranged at intervals on the side wall of the rotating block. The telescopic end of the hydraulic cylinder is connected to an inner top block. The inner top block contacts the inner wall of the rotating wheel body. An electromagnetic suction block is installed inside the inner top block. The rotating assembly includes a mounting frame, which is a column-shaped structure. A stepper motor is connected to the upper end of the mounting frame, and the end of the stepper motor is connected to a rotating block set in the inner claw structure. The rotation of the stepper motor can drive the rotating block to rotate at a specified angle. Several hydraulic cylinders are connected to the side wall of the rotating block at equal intervals. The telescopic end of the hydraulic cylinders is connected to an inner top block, which has an arc-shaped surface. An electromagnetic suction block is installed inside the inner top block. The electromagnetic suction block can be used to improve the adsorption and support capacity between the inner top block and the inner wall of the rotating wheel body, thereby improving the clamping of the rotating assembly on the rotating wheel body and ensuring that the rotating wheel body can stably follow the rotation of the stepper motor. This structure makes the operation simple and convenient, thereby ensuring good welding quality in the subsequent process.

[0011] Preferably, the gripping and positioning assembly includes an upper top plate, a telescopic rod installed at the bottom of the upper top plate, a U-shaped gripping frame for the gripping block, a telescopic cylinder connected to the top of the gripping frame, the telescopic cylinder being connected to the telescopic end of the telescopic rod, and an electromagnetic suction block installed inside the gripping frame, the end face of the electromagnetic suction block being an arc-shaped surface and the electromagnetic suction block being connected to the rotating wheel blade. The gripping and positioning assembly includes an upper top plate fixed to the equipment frame. A telescopic rod is installed at the bottom of the upper top plate, and a telescopic cylinder is connected to the telescopic end of the rod. The telescopic rod is horizontally arranged, while the telescopic cylinder is vertically arranged. The gripping frame within the gripping block has a U-shaped structure that can hold the rotating blades. An electromagnetic suction block with an arc-shaped end is located at the top inner part of the gripping frame. When the gripping frame grips the rotating blades, the electromagnetic suction block attracts them. The arc-shaped surface of the electromagnetic suction block matches the curvature of the rotating blade's sidewall, ensuring a close fit and improving the attraction effect. This ensures stable transfer of the rotating blades. Furthermore, the coordinated extension lengths of the telescopic rod and the telescopic cylinder ensure the rotating blades are transferred to the accurate position, facilitating accurate subsequent welding. This structure improves automation, is easy and simple to operate, and guarantees high welding quality.

[0012] Preferably, the welding assembly is equipped with a fixed base, which is installed on the outer wall of the gripping frame. A robotic arm is mounted on the fixed base, and a welding head is connected to the end of the robotic arm. The welding head can be used to weld the rotor body and rotor blades. The welding assembly includes a fixed base and a robotic arm. The fixed base is fixedly installed on the outer wall of the gripping frame, and the robotic arm is mounted on the fixed base. The robotic arm can move the welding head installed at its end by a preset distance. The welding head can be a welding torch head for MIG welding or TIG welding, and it has welding functions. Through a programmed procedure, the welding head welds the joint between the rotor body and rotor blades, achieving automated welding. This structure makes operation simple and convenient.

[0013] Preferably, the transfer assembly is equipped with a fixed frame, and the conveyor belt is connected to the fixed frame via a matching mounting shaft. A rotating motor is connected to the mounting shaft at one end of the conveyor belt and is mounted on the fixed frame. The fixed frame consists of four columns, and mounting shafts are installed inside both ends of the conveyor belt. These mounting shafts tension the conveyor belt and are mounted on the fixed frame. Rotation of the mounting shafts allows the conveyor belt to rotate. The rotating motor is connected to the mounting shaft at one end of the conveyor belt and is mounted on the fixed frame. This arrangement allows the rotating motor to drive the transfer of the impeller blades via the conveyor belt, resulting in a high degree of automation and simple, convenient operation.

[0014] Preferably, the positioning block includes a main support block with an arc-shaped top. A rubber ring is installed around the top surface of the main support block, and a strong magnetic block is installed in the center of the top of the main support block. The main support block has an arc-shaped top and a rubber ring around its circumference, which protects the impeller blades. The strong magnetic block in the center of the top of the main support block allows the impeller blades to be stably attached to the main support block when placed on it, facilitating conveyor belt transport and simplifying operation.

[0015] Preferably, the sidewalls of the main support block are respectively provided with limiting blocks, the limiting blocks being L-shaped, and the sidewalls of the limiting blocks being provided with stabilizing inclined surfaces. Specifically, the limiting blocks, which are L-shaped and have stabilizing inclined surfaces on their inner walls, can limit and hold the rotor blades placed on the positioning blocks, ensuring the stability of the rotor blades during transport.

[0016] Preferably, the inner wall of the stabilizing inclined surface is provided with an anti-collision rubber layer. This anti-collision rubber layer on the inner wall of the stabilizing inclined surface provides protection, ensuring that the impeller blades are not damaged during transport and guaranteeing welding quality.

[0017] The beneficial effects of this invention are: high degree of automation, convenient and simple welding operation, improved welding quality, and guaranteed product quality. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention; Figure 2 This is a front view of the end face of the outer claw of the present invention; Figure 3 This is a partial view of the outer claw head in this invention; Figure 4 This is a partial view of the rotating assembly and gripping positioning assembly of the present invention; Figure 5 This is a cross-sectional view of the inner top block in this invention; Figure 6 This is a three-dimensional view of the positioning block in this invention.

[0019] In the attached diagram, 1. Lifting assembly, 2. Rotating assembly, 3. Gripping and positioning assembly, 4. Transfer assembly, 5. Rotating base, 10. External gripper, 11. Fixed plate, 12. Mounting slot, 13. Hydraulic cylinder II, 14. External gripper head, 15. Clamping area, 16. Clearance slot, 17. Clamping block, 20. Internal gripper, 21. Mounting frame, 22. Stepper motor, 23. Rotating block, 24. Hydraulic cylinder III, 25. Internal top block, 26. Electromagnetic suction block II, 30. Gripping block, 31. Electromagnetic suction block I, 32. Top plate, 33. Telescopic rod, 34. Gripping frame, 35. Telescopic cylinder, 36. Fixed base, 37. Robotic arm, 38. Welding head, 40. Conveyor belt, 41. Positioning block, 42. Fixed frame, 43. 44. Rotating motor, 45. Main support block, 46. Rubber ring, 47. Strong magnetic block, 48. Limiting block, 49. Stabilizing inclined plane, 50. Anti-collision rubber layer, 51. Lifting cylinder, 52. Hydraulic cylinder one. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0021] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0022] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components illustrated in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0023] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0024] Example 1, such as Figure 1-6 As shown, a turbine runner welding device includes: a lifting group 1, which is equipped with an outer claw 10 for gripping the runner body and is capable of swinging lifting action; a rotating group 2, which is arranged opposite to the lifting group 1 and is equipped with an inner claw 20 for clamping and fixing the runner body and is capable of rotating action; a gripping and positioning group 3, which is placed above the lifting group 1 and the rotating group 2 and is equipped with a horizontally sliding gripping block 30, which has an electromagnetic suction block 31 for attracting the runner blades inside and a welding assembly integrated on the gripping block 30; and a transfer group 4, which is placed below the gripping and positioning group 3 and is equipped with a rotatable conveyor belt 40, on which are a plurality of positioning blocks 41 for rotating the runner blades.

[0025] The lifting assembly 1 includes a rotating base 5, with a lifting cylinder 50 connected to the upper end of the rotating base 5. A retractable hydraulic cylinder 51 is installed at the lifting end of the lifting cylinder 50. The outer claw 10 is provided with a fixing plate 11. The rear end face of the fixing plate 11 is connected to the retractable end of the hydraulic cylinder 51. The front end face of the fixing plate 11 is provided with a mounting groove 12. A second hydraulic cylinder 13 and an outer claw head 14 are provided in the mounting groove 12. The second hydraulic cylinder 13 is fixedly installed in the mounting groove 12, and the end of the second hydraulic cylinder 13 is connected to the outer claw head 14.

[0026] The inner wall of the outer claw head 14 is provided with a toothed clamping area 15 in the middle, and the front end of the inner wall of the outer claw head 14 is provided with a relief groove 16, in which a clamping rubber block 17 is installed.

[0027] The rotating assembly 2 includes a mounting frame 21, with a stepper motor 22 connected to the upper end of the mounting frame 21. The inner chuck 20 is provided with a rotating block 23, and the rotating block 23 is connected to the rotating shaft of the stepper motor 22. Several hydraulic cylinders 24 are arranged at intervals on the side wall of the rotating block 23. The telescopic end of the hydraulic cylinders 24 is connected to an inner top block 25. The inner top block 25 contacts the inner wall of the rotating wheel body. An electromagnetic suction block 26 is installed inside the inner top block 25.

[0028] The gripping and positioning assembly 3 includes an upper top plate 32, a telescopic rod 33 installed at the bottom of the upper top plate 32, a gripping block 30 with a U-shaped gripping frame 34, a telescopic cylinder 35 connected to the top of the gripping frame 34, the telescopic cylinder 35 being connected to the telescopic end of the telescopic rod 33, and an electromagnetic suction block 31 installed inside the gripping frame 34, the end face of the electromagnetic suction block 31 being an arc-shaped surface and the electromagnetic suction block 31 being connected to the rotating wheel blades.

[0029] The welding assembly is equipped with a fixed base 36, which is installed on the outer side wall of the gripper 34. The fixed base 36 is equipped with a robot arm 37, and the end of the robot arm 37 is connected to a welding head 38. The welding head 38 can be used to weld the main body of the rotor and the rotor blades.

[0030] The transfer group 4 is provided with a fixed frame 42. The conveyor belt 40 is connected to the fixed frame 42 through its matching mounting shaft. A rotating motor 43 is connected to the mounting shaft at one end of the conveyor belt 40. The rotating motor 43 is mounted on the fixed frame 42.

[0031] The positioning block 41 is provided with a main support block 44. The top of the main support block 44 is an arc-shaped surface. A rubber ring 45 is installed around the top surface of the main support block 44. A strong magnetic block 46 is installed in the middle of the top of the main support block 44.

[0032] Limiting blocks 47 are respectively provided on the side walls of the main support block 44. The limiting blocks 47 are L-shaped and the side walls of the limiting blocks 47 are provided with stabilizing inclined surfaces 48.

[0033] The inner wall of the stabilizing slope 48 is provided with an anti-collision rubber layer 49.

[0034] The working principle of this invention is as follows: Figure 1-6 As shown, the turbine runner has an annular runner body and blade-shaped runner blades. The lifting assembly 1 in this welding device is equipped with an outer clamping claw 10, which can grip and lift the runner body. Opposite to the lifting assembly 1 is a rotating assembly 2, which contains an inner clamping claw 20. The inner clamping claw 20 extends into the runner body, supporting the inner wall of the runner body and fixing it in place. Furthermore, the rotation of the inner clamping claw 20 allows for adjustment of the turbine runner angle after each welding of the runner blades to the runner body, thus completing the subsequent welding of the runner blades. In this welding device, the gripping and positioning group 3 is positioned above the lifting group 1 and the rotating group 2. The gripping and positioning group 3 is equipped with a gripping block 30, which is used for the rotor blade to be welded. The gripping block 30 can slide horizontally. At the same time, an electromagnetic suction block 31 is provided inside the gripping block 30. The electromagnetic suction block 31 can be used to attract the rotor blade after the gripping block 30 grips it, ensuring that the rotor blade is gripped stably. Meanwhile, a welding group is integrated on the gripping block 30. The gripping block 30 grips the rotor blade and moves it to the rotor body. The welding positioning is controlled by the movement position of the gripping block 30, and the welding group works together to weld the rotor blade and the rotor body. The transfer group 4 is positioned below the gripping and positioning group 3. A conveyor belt 40 is installed within the transfer group 4; this conveyor belt 40 is rotatable, and several positioning blocks 41 are installed on the conveyor belt 40. These positioning blocks 41 can be used to fix the rotor blades, allowing the transfer group 4 to transfer and transport the rotor blades to the gripping and positioning group 3 for easy gripping. This device is convenient to operate and highly automated when manufacturing the rotor body and rotor blades, while ensuring good welding results and high product processing quality.

[0035] The lifting assembly 1 includes a rotating base 5 housing a rotary motor, enabling the base to rotate. A lifting cylinder 50 is connected to the upper end of the rotating base 5, allowing for precise positioning and lifting. A lifting limit is set at the extended end of the cylinder 50 to stop the lifting at a certain height, ensuring accurate lifting height. A hydraulic cylinder 51 and an outer clamping claw 10 are mounted on the top of the extension end of the lifting cylinder 50. The lifting cylinder 50 drives the hydraulic cylinder 51 for vertical lifting. A fixed plate 11 is provided, which is installed at the telescopic end of the hydraulic cylinder 51. Several mounting slots 12 are provided on the front end face of the fixed plate 11. The mounting slots 12 are arranged radially at equal intervals. A hydraulic cylinder 13 is installed inside the mounting slot 12. The hydraulic cylinder 13 is arranged horizontally with the mounting slot 12. At the same time, an external claw head 14 is connected to the telescopic end of the hydraulic cylinder 13. The external claw head 14 is arranged perpendicularly with the mounting slot 12. The telescopic movement of the hydraulic cylinder 13 can drive the external claw head 14 to grasp the main body of the wheel and realize lifting and transfer, which is convenient to operate and has a high degree of automation.

[0036] The outer claw head 14 has a clamping area 15 in the middle of its inner sidewall. The clamping area 15 has a toothed structure. At the same time, a relief groove 16 is provided at the front end of the inner sidewall of the outer claw head 14. A clamping rubber block 17 is connected in the relief groove 16. This structure can improve the friction when gripping the main body of the wheel, ensure its gripping force, and ensure the clamping effect on the main body of the wheel during the gripping, lifting and transfer process, thus ensuring reliable transfer.

[0037] The rotating assembly 2 includes a mounting frame 21, which is a column-shaped structure. A stepper motor 22 is connected to the upper end of the mounting frame 21. The end of the stepper motor 22 is connected to a rotating block 23 in the inner claw 20 structure. The rotation of the stepper motor 22 can drive the rotating block 23 to rotate at a specified angle. Several hydraulic cylinders 24 are connected to the side wall of the rotating block 23 at equal intervals. The telescopic end of the hydraulic cylinders 24 is connected to an inner top block 25, which is an arc-shaped surface. An electromagnetic suction block 26 is installed inside the inner top block 25. The electromagnetic suction block 26 can be used to improve the adsorption and support capacity between the inner top block 25 and the inner wall of the rotating wheel body, thereby improving the clamping of the rotating assembly 2 on the rotating wheel body. This ensures that the rotating wheel body can stably follow the rotation of the stepper motor 22. This structure makes the operation simple and convenient, thereby ensuring good welding quality in the subsequent process.

[0038] The gripping and positioning assembly 3 includes an upper top plate 32, which is fixed to the equipment frame. A telescopic rod 33 is installed at the bottom of the upper top plate 32, and a telescopic cylinder 35 is connected to the telescopic end of the telescopic rod 33. The telescopic rod 33 is arranged horizontally, and the telescopic cylinder 35 is arranged vertically. Meanwhile, the gripping frame 34 in the gripping block 30 has a U-shaped structure, which can hold the rotating wheel blades. An electromagnetic suction block 31 is installed at the inner top of the gripping frame 34, and the end of the electromagnetic suction block 31 has an arc-shaped structure. When the gripper 34 grips the rotary blade, the electromagnetic suction block 31 attracts the rotary blade. At the same time, the arc-shaped surface structure of the electromagnetic suction block 31 matches the curvature of the side wall of the rotary blade, ensuring a close fit and thus improving the attraction effect. This ensures a stable transfer process for the rotary blade. Furthermore, the coordination of the telescopic rod 33 and the telescopic cylinder 35 ensures that the rotary blade is transferred to the accurate position, facilitating the accuracy of subsequent welding. This structure improves the degree of automation, is easy and simple to operate, and ensures good welding quality.

[0039] The welding assembly includes a fixed base 36 and a robotic arm 37. The fixed base 36 is fixedly installed on the outer wall of the gripper 34, and the robotic arm 37 is installed on the fixed base 36. The robotic arm 37 can move the welding head 38 installed at its end by setting a certain degree. The welding head 38 can be a welding torch head for MIG welding or TIG welding. It has the function of welding. Through a programmed program, the welding head 38 welds the joint between the wheel body and the wheel blades, realizing automated welding. This structure makes the operation simple and convenient.

[0040] The transfer unit 4 includes a fixed frame 42 consisting of four columns. Mounting shafts are installed at both ends of the conveyor belt 40, which tension the conveyor belt 40 and are mounted on the fixed frame 42. Rotation of the mounting shafts allows the conveyor belt 40 to rotate. A rotating motor 43 is connected to one end of the mounting shaft on the conveyor belt 40 and is mounted on the fixed frame 42. This arrangement allows the rotating motor 43 to drive the transfer of the impeller blades via the conveyor belt 40. This operation is highly automated and simple to operate.

[0041] The positioning block 41 is equipped with a main support block 44. The top of the main support block 44 has an arc-shaped surface structure. A rubber ring 45 is installed around the top surface of the main support block 44. The rubber ring 45 can protect the impeller blades. At the same time, a strong magnet 46 is installed in the middle of the top of the main support block 44. When the impeller blades are placed on the main support block 44 of the positioning block 41, the strong magnet 46 can make the impeller blades stably adhere to the main support block 44, which facilitates the transfer of the conveyor belt 40 and makes the operation simple and convenient.

[0042] A limiting block 47 is provided on the side wall of the main support block 44. The limiting block 47 is L-shaped and a stabilizing inclined surface 48 is provided on the inner wall of the limiting block 47. The stabilizing inclined surface 48 can limit and lock the rotor blades placed on the positioning block 41 to ensure the stability of the rotor blades during the transfer process.

[0043] The anti-collision rubber layer 49 set on the inner wall of the stabilizing inclined surface 48 can play a protective role. This structure can ensure that the rotor blades will not be damaged during transportation and ensure welding quality.

[0044] The working steps of this welding device are as follows: the lifting group grabs the main body of the rotating wheel, rotates and lifts it until it reaches the correct position, and then transfers the main body of the rotating wheel to the rotating group. The rotating wheel blades are placed on the positioning blocks of the transfer group, and the rotating wheel blades are transferred to the designated position by the conveyor belt. The gripping and positioning group then grabs the rotating wheel blades from the positioning blocks and transfers them to the correct position, ensuring that the rotating wheel blades contact the main body. Finally, the welding group integrated on the gripping block welds the rotating wheel blades and the main body together. The stepper motor in the rotating group can achieve fixed-angle rotation, allowing the welding of one rotating wheel blade to be completed by rotating a certain angle before welding the next rotating wheel blade. This makes the welding device highly automated, simple to operate, and convenient.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hydraulic turbine runner welding device, characterized in that it comprises: a lifting group (1) provided with an outer claw (10) for grabbing the runner body, which can perform a swinging lifting action; a rotating group (2) arranged opposite to the lifting group (1), provided with an inner claw (20) for clamping and fixing the runner body, which can perform a rotating action; a grabbing and positioning group (3) arranged above the lifting group (1) and the rotating group (2), provided with a horizontally slidable grabbing block (30), which is internally provided with an electromagnetic suction block (31) for attracting the runner blades, and which is integrated with a welding group; a transfer group (4) arranged below the grabbing and positioning group (3), provided with a rotatable conveying belt (40) provided with a plurality of positioning blocks (41) for transferring the runner blades.

2. A welding device for a water turbine runner as claimed in claim 1, characterized in that The lifting group (1) comprises a rotating base (5), the upper end of which is connected with a lifting cylinder (50), the lifting end of which is provided with a retractable hydraulic cylinder (51), the outer claw (10) is provided with a fixed disc (11), the rear end face of which is connected with the retractable end of the hydraulic cylinder (51), the front end face of which is provided with a mounting groove (12), the inner wall of which is provided with a hydraulic cylinder (13) and an outer claw head (14), the hydraulic cylinder (13) is fixedly installed in the mounting groove (12), and the end of the hydraulic cylinder (13) is connected with the outer claw head (14).

3. A welding device for a water turbine runner as claimed in claim 2, characterized in that The inner wall of the outer claw head (14) is provided with a toothed clamping area (15) in the middle, and the front end of the inner wall of the outer claw head (14) is provided with a clearance groove (16), in which a clamping rubber block (17) is installed.

4. A welding device for a water turbine runner as defined in claim 1, characterized in that The rotating group (2) comprises a mounting frame (21), the upper end of which is connected with a stepping motor (22), the inner claw (20) is provided with a rotating block (23) connected with the rotating shaft of the stepping motor (22), the side wall of the rotating block (23) is provided with a plurality of hydraulic cylinders (24) arranged at intervals, the retractable end of the hydraulic cylinder (24) is connected with an inner top block (25), the inner top block (25) is in contact with the inner wall of the runner body, and the inner top block (25) is internally provided with an electromagnetic suction block (26).

5. A welding device for a water turbine runner as defined in claim 1, characterized in that The grabbing and positioning group (3) comprises an upper top plate (32), the bottom of which is provided with a telescopic rod (33), the grabbing block (30) is provided with a U-shaped grabbing frame (34), the top of which is connected with a telescopic cylinder (35), the telescopic cylinder (35) is connected with the retractable end of the telescopic rod (33), the electromagnetic suction block (31) is installed on the inner side of the grabbing frame (34), the end face of the electromagnetic suction block (31) is arc-shaped, and the electromagnetic suction block (31) is connected with the runner blades.

6. A welding device for a water turbine runner as defined in claim 5, characterized in that The welding group is provided with a fixing seat (36) mounted on the outer side wall of the grabbing frame (34), a mechanical hand (37) is mounted on the fixing seat (36), and a welding head (38) is connected to the end of the mechanical hand (37), which can be used for welding the runner body and the runner blade.

7. A welding device for a water turbine runner as defined in claim 1, characterized in that The transfer group (4) is provided with a fixing frame (42), the conveying belt (40) is connected to the fixing frame (42) through a matched mounting shaft, a rotating motor (43) is connected to the mounting shaft at one end of the conveying belt (40), and the rotating motor (43) is mounted on the fixing frame (42).

8. A welding device for a water turbine runner as defined in claim 1, characterized in that The positioning block (41) is provided with a main supporting block (44), the top of the main supporting block (44) is an arc surface, a rubber ring (45) is mounted on the top of the main supporting block (44), and a strong magnetic block (46) is mounted on the top of the main supporting block (44).

9. A welding apparatus for a water turbine runner as defined in claim 8, wherein Limiting blocks (47) are arranged on the side walls of the main supporting block (44), the limiting blocks (47) are L-shaped, and stable inclined surfaces (48) are arranged on the side walls of the limiting blocks (47).

10. A welding device for a water turbine runner as defined in claim 9, characterized in that The stable inclined surfaces (48) are provided with anti-collision rubber layers (49) on the inner walls.

Images