A heavy-duty gas turbine motor blade tip welding device

Abstract

This invention discloses a welding device for the blade tips of a heavy-duty gas turbine, relating to the field of heavy-duty gas turbine technology. It includes a base and a clamping assembly. A welding assembly is mounted on one top end of the base, and a protective assembly is provided on one side of the welding assembly. A support column is fixed to the outer top end of the base, and a top shell is mounted on the top of the support column. The clamping assembly is located inside the top shell and includes a servo motor. The servo motor is fixed to one top end of the top shell, and its output end is connected to a gear column. This invention, by setting multiple clamping seats and utilizing a linkage structure composed of a gear ring, threaded sleeve, ball bearing, pull rod, and connecting rod driven by a servo motor, can synchronously drive the clamping blocks on all clamping seats to clamp or release multiple blades. This "one-button" centralized control transforms the traditional individual clamping operation into a batch synchronous operation, greatly shortening the overall clamping time for multiple blades, making it particularly suitable for batch operations.

Description

Technical Field

[0001] This invention relates to the field of heavy-duty gas turbine technology, specifically to a welding device for the blade tip of a heavy-duty gas turbine. Background Technology

[0002] A gas turbine is an internal combustion power machine that uses a continuously flowing gas as a working fluid to drive a high-speed rotating impeller, converting the energy of fuel into useful work. It is a type of rotating impeller thermal engine. When a gas turbine is running, the moving blades rotate at high speed, and there are tiny gaps between the blade tips and the stator components. They are subjected to high temperature, high pressure gas scouring and slight friction conditions for a long time. By overlaying a wear-resistant coating, the dimensional failure of the blade tip substrate due to wear and corrosion can be avoided. At the same time, it reduces gas leakage caused by excessive gaps and ensures the thermal cycle efficiency of the unit.

[0003] Existing heavy-duty gas turbine blade tip welding equipment typically uses a clamp to hold a single blade during the surfacing welding of both sides of the blade tip. Each welding operation requires driving the blade to rotate to change the welding position. Furthermore, to maintain the welding effect, the angle of the laser cladding head needs to be frequently adjusted according to the changes in the blade's rotation arc. This results in increased operating costs due to the numerous overall operation steps, thereby reducing welding efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a welding device for the blade tip of a heavy-duty gas turbine motor blade to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a heavy-duty gas turbine blade tip welding device, comprising a base and a clamping assembly. A welding assembly is mounted on one top end of the base, and a protective assembly is provided on one side of the welding assembly. A support column is fixed to the outer top end of the base, and a top shell is mounted on the top of the support column. The clamping assembly is disposed inside the top shell, and the clamping assembly includes a servo motor. A servo motor is fixed to the top of one end of the top shell, and a gear column is connected to the output end of the servo motor. A gear ring meshes with the outer side of the gear column, and a threaded sleeve is fixed to the outer side of the gear ring. A ball bearing plate abuts against the lower top surface of the threaded sleeve, and a pull rod is mounted at the bottom of the ball bearing plate. A connecting rod is rotatably connected to the lower end of the pull rod, and a clamping block is rotatably connected to the lower end of the connecting rod. A clamping seat is slidably connected to the outer side of the clamping block.

[0006] Furthermore, the threaded sleeve is threadedly connected to the top shell, and the cross-section of the threaded sleeve is L-shaped.

[0007] Furthermore, the welding assembly includes a guide seat, a slide block is slidably connected to one side of the guide seat, and a reduction motor is mounted on one side of the slide block. The output end of the reduction motor is connected to a drive gear, and a rack meshes on one side of the drive gear. A connecting column is mounted on one side of the slide block, and a laser cladding head is provided at one end of the connecting column.

[0008] Furthermore, the rack is fixedly connected to the guide seat, and the upper part of the guide seat is U-shaped.

[0009] Furthermore, the protective component includes a pressure plate, one end of the connecting column is rotatably connected to the pressure plate, and the lower end of the pressure plate is slidably connected to a light rod. The two ends of the light rod are fixedly connected to a lifting seat, and one end of the lifting seat is fixedly connected to a waste bin. The lifting seat is slidably connected to a column, and the column is fixedly connected to the base.

[0010] Furthermore, a slide bar is slidably connected to the lower end of one side of the waste bin, and a guide plate is fixed to the top of one end of the slide bar. A pulley plate is abutted on one side of the guide plate, and a baffle is installed at the upper end of the pulley plate. Both the baffle and the pulley plate are slidably connected to the waste bin.

[0011] Furthermore, the number of sliders is set to two, and the sliders are L-shaped.

[0012] Furthermore, a pulley seat is installed at the top of the column, and a connecting rope is provided at the top of the pulley seat. One end of the connecting rope is connected to a counterweight, and the other end of the connecting rope is fixedly connected to the lifting seat.

[0013] Furthermore, a shifting assembly is connected to the center of the top of the top shell, and the shifting assembly includes a shifting motor. The shifting motor is installed at the center of the top of the top shell, and a main shaft is fixed to the output end of the shifting motor. A rotating seat is installed at the lower end of the main shaft, and the rotating seat is rotatably connected to the top shell.

[0014] Furthermore, an adjustment assembly is installed on the top of the rotating seat, and the adjustment assembly includes an electric cylinder. The electric cylinder is hinged to the top of the rotating seat, and one end of the electric cylinder is rotatably connected to a drive plate. One end of the drive plate is fixed with a gear ring, and the gear ring is rotatably connected to the rotating seat. A driven gear meshes with the outer side of the gear ring, and the driven gear is fixedly connected to a clamp, and the clamp is rotatably connected to the rotating seat.

[0015] This invention provides a welding device for the blade tip of a heavy-duty gas turbine, which has the following advantages: 1. This invention, by setting up multiple clamping seats and utilizing a linkage structure composed of a servo motor driving a gear ring, screw sleeve, ball bearing, pull rod, and connecting rod, can synchronously drive the clamping blocks on all clamping seats to clamp or release multiple moving blades. This "one-button" centralized control transforms the traditional individual clamping operation into a batch synchronous operation, greatly shortening the overall clamping time of multiple moving blades. It is particularly suitable for batch operations, significantly improving efficiency. In addition, by adjusting the components, all clamping stations can be driven to rotate simultaneously, allowing operators to load the moving blades from the most comfortable and easy-to-operate angle, reducing operator fatigue.

[0016] 2. This invention utilizes the arc-shaped feature of the blade tip of the moving blade. Through the reasonable layout of the clamping assembly, the blade tips of multiple moving blades are naturally arranged into an approximately complete circular outline. This allows the laser cladding head to ensure that the beam axis is perpendicular to the tangent direction of this common circular outline during welding, thus guaranteeing the optimal vertical incident angle for the arc surface of the blade tip of each moving blade. When the shift motor drives the spindle and the rotary table to rotate the entire clamping assembly, there is no need to adjust the complex spatial posture of the laser head for each moving blade individually. This greatly simplifies the motion trajectory programming of the robot or CNC system, reduces auxiliary time, and ensures the consistency of the weld layer thickness and cladding quality of all moving blades.

[0017] 3. This invention utilizes a linkage mechanism composed of connecting columns, pressure plates, lifting seats, and uprights. The movement of the laser cladding head automatically triggers the lifting and lowering of the waste bin. During repositioning, the waste bin automatically descends to avoid obstacles, and rises to receive the waste when it is in place. This proactive obstacle avoidance mechanism of "movement means avoidance, and placement means protection" completely eliminates manual intervention, ensuring unobstructed adjustment paths and guaranteeing the continuity of the automated welding process. Furthermore, when the laser cladding head moves to another side, the linkage of the pressure plate, sliding bar, guide plate, and pulley plate causes the baffle on the new working side to automatically retract, while the baffle on the original working side automatically rises and unfolds. This eliminates the need for manual adjustment or replacement, achieving intelligent following between the protection area and the welding area, and significantly improving the efficiency of multi-station welding. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a heavy-duty gas turbine motor blade tip welding device according to the present invention; Figure 2 This is a schematic diagram of the welding assembly structure of a heavy-duty gas turbine motor blade tip welding device according to the present invention; Figure 3 This is a schematic diagram of the protective component structure of a heavy-duty gas turbine blade tip welding device according to the present invention; Figure 4 This is a bottom view of the top shell structure of a heavy-duty gas turbine motor blade top welding device according to the present invention; Figure 5This is a three-dimensional structural diagram of the adjustment component of a heavy-duty gas turbine motor blade tip welding device according to the present invention; Figure 6 This is a three-dimensional structural diagram of the clamping seat of the heavy-duty gas turbine motor blade tip welding device of the present invention; Figure 7 This is a three-dimensional structural diagram of the tie rod of the welding device for the tip of a heavy-duty gas turbine blade according to the present invention.

[0019] In the diagram: 1. Base; 2. Welding assembly; 201. Guide seat; 202. Slide seat; 203. Gear motor; 204. Drive gear; 205. Rack; 206. Connecting column; 207. Laser cladding head; 3. Protective assembly; 301. Pressure plate; 302. Stainless steel rod; 303. Lifting seat; 304. Scrap bin; 305. Column; 306. Slide bar; 307. Guide plate; 308. Pulley plate; 309. Baffle frame; 4. Pulley seat; 5. Connecting rope; 6. Counterweight 7. Block; 8. Support column; 9. Top shell; 10. Clamping assembly; 11. Servo motor; 12. Gear column; 13. Gear ring; 14. Screw sleeve; 15. Ball bearing plate; 16. Tie rod; 17. Connecting rod; 18. Clamping block; 19. Clamping seat; 10. Shifting assembly; 1001. Shifting motor; 1002. Main shaft; 1003. Rotating seat; 11. Adjusting assembly; 12. Electric cylinder; 13. Drive plate; 14. Gear ring; 15. Driven gear. Detailed Implementation

[0020] Please see Figures 1 to 3This invention provides a technical solution: a heavy-duty gas turbine blade tip welding device, comprising a base 1 and a clamping assembly 9. A welding assembly 2 is mounted on one top end of the base 1, and a protective assembly 3 is provided on one side of the welding assembly 2. The welding assembly 2 includes a guide seat 201, a slide seat 202 slidably connected to one side of the guide seat 201, and a reduction motor 203 mounted on one side of the slide seat 202. A drive gear 204 is connected to the output end of the reduction motor 203, and a rack 205 meshes with one side of the drive gear 204. A connecting post 206 is mounted on one side of the slide seat 202, and a laser cladding head 207 is provided at one end of the connecting post 206. The rack 205 is fixedly connected to the guide seat 201, and the upper part of the guide seat 201 is U-shaped. The protective assembly 3 includes a pressure plate 301, and the pressure plate 301 is rotatably connected to the outer side of one end of the connecting post 206, and the lower end of the pressure plate 301... An internal sliding rod 302 is connected, and a lifting seat 303 is fixedly connected to both ends of the rod 302. A waste bin 304 is fixed to one end of the lifting seat 303. A column 305 is slidably connected inside the lifting seat 303, and the column 305 is fixedly connected to the base 1. A slide bar 306 is slidably connected to the lower end of one side of the waste bin 304, and a guide plate 307 is fixed to the top of one end of the slide bar 306. A pulley plate 308 is abutted on one side of the guide plate 307, and a baffle 309 is installed on the upper end of the pulley plate 308. Both the baffle 309 and the pulley plate 308 are slidably connected to the waste bin 304. There are two slide bars 306, and the slide bars 306 are L-shaped. A pulley seat 4 is installed on the top of the column 305, and a connecting rope 5 is installed on the top of the pulley seat 4. A counterweight 6 is connected to one end of the connecting rope 5, and the other end of the connecting rope 5 is fixedly connected to the lifting seat 303. The specific operation is as follows: During the welding process on the tip of the moving blade, inert gas in the laser cladding head 207 carries the solder towards the tip of the moving blade. At this time, the falling solder can be collected by the waste bin 304, while the baffle 309 can block the solder passing through the edge of the moving blade, thereby preventing excess solder from splashing. In addition, filter plates are installed on both the waste bin 304 and the baffle 309 to facilitate airflow and prevent the airflow from blowing out the powdery solder inside. When welding the other side of the tip of the moving blade, the geared motor 203 drives the drive gear 204 to roll on the rack 205, which allows the slide 202 to move on the guide seat. Guided by column 201, the laser cladding head 207 slides to the other end, automatically changing its position and angle. During this process, the connecting column 206 pushes the pressure plate 301, causing the lifting seat 303 to move the waste box 304 downwards along the axis of the column 305, automatically avoiding interference with the movement path of the laser cladding head 207. Simultaneously, the pressure plate 301 slides on the optical rod 302 and separates from the slide bar 306. At this point, the higher-positioned baffle 309, under the influence of gravity, pushes the guide plate 307 through the pulley plate 308, thereby pulling the slide bar 306 to center it. The two baffles 309 also... The laser cladding head 207 retracts into the waste bin 304. When the laser cladding head 207 moves to the other side of the moving blade, the connecting column 206 pulls the light rod 302 via the pressure plate 301, causing the waste bin 304 to move upwards to the receiving area below the moving blade. This active obstacle avoidance mechanism, where "movement is avoidance and positioning is protection," completely eliminates manual intervention, ensuring an unobstructed welding path and the continuity of the automated welding process. Subsequently, the pressure plate 301 pushes another slide bar 306, causing it to pull the guide plate 307 and squeeze the pulley plate 308, thereby causing the baffle 309 on the other side to move upwards, thus changing the laser... When the welding head 207 is in position, the baffle 309 can be automatically switched, eliminating the need for manual adjustment or replacement of the protective device. This achieves intelligent following between the protective area and the welding area, greatly improving the efficiency of multi-station welding. In addition, the balancing system consisting of pulley seat 4, connecting rope 5 and counterweight 6 uses the gravity of counterweight 6 to provide an upward balancing force for the waste bin 304 and the welding material collected inside, significantly reducing the load that the drive pressure plate 301 needs to overcome, thereby reducing the specification requirements and energy consumption of the drive unit, and effectively improving the reliability and service life of the entire lifting system.

[0021] Please see Figures 4 to 7A support column 7 is fixed to the top outer end of the base 1, and a top shell 8 is mounted on the top of the support column 7. A clamping assembly 9 is disposed inside the top shell 8, and the clamping assembly 9 includes a servo motor 901. The servo motor 901 is fixed to the top of one end of the top shell 8, and a gear column 902 is connected to the output end of the servo motor 901. A gear ring 903 meshes with the outer side of the gear column 902, and a threaded sleeve 904 is fixed to the outer side of the gear ring 903. The lower top surface of the threaded sleeve 904 abuts against a ball bearing 905, and a pull rod 906 is mounted at the bottom of the ball bearing 905. The lower end of the pull rod 906 is rotatably connected to a... A connecting rod 907 is rotatably connected to a clamping block 908 at its lower end. A clamping seat 909 is slidably connected to the outer side of the clamping block 908. A threaded sleeve 904 is threadedly connected to the top shell 8. The cross-section of the threaded sleeve 904 is L-shaped. A shifting assembly 10 is connected to the center of the top of the top shell 8. The shifting assembly 10 includes a shifting motor 1001. The shifting motor 1001 is placed at the center of the top of the top shell 8. A main shaft 1002 is fixed to the output end of the shifting motor 1001. A rotating seat 1003 is placed at the lower end of the main shaft 1002. The rotating seat 1003 is rotatably connected to the top shell 8. The specific operation is as follows: By setting multiple clamping seats 909, during clamping, simply place multiple moving blades at the bottom of the clamping seats 909 respectively. At this time, a dovetail groove will be formed between the two clamping blocks 908, which can initially limit the position of the moving blade connecting seat. The operation method during placement is similar to installing the moving blade into the dovetail groove of the wheel. Simply insert it to complete the initial positioning. Subsequently, start the servo motor 901, so that the gear column 902 drives the gear ring 903 to rotate, thereby driving the screw sleeve 904 in the top shell 8. When the screw sleeve 904 rotates internally, the threaded groove between the screw sleeve 904 and the top shell 8 drives the screw sleeve 904 to move upwards. This, in turn, pulls the connecting rod 906 via the ball bearing disc 905, causing the connecting rod 907 to move the two clamping blocks 908 towards the center, clamping and fixing the connecting seat of the moving blade. When releasing, simply control the output shaft of the servo motor 901 to rotate in the opposite direction. As the screw sleeve 904 moves downwards, the connecting rod 906 will press the connecting rod 907 under the action of gravity, causing the two clamping blocks 908 to open, thus releasing the screw sleeve. The connecting seat for the moving blades allows for the simultaneous clamping and positioning of multiple moving blades during operation, significantly reducing the time required for disassembling and assembling multiple moving blades. Furthermore, since the tip of a single moving blade is arc-shaped, and multiple moving blades are mounted at the bottom of the clamping assembly 9, their tips form a circle. Therefore, during the welding process on the tips of the moving blades, the angle of the laser cladding head 207 remains constant. When the shifting motor 1001 drives the rotating seat 1003 to rotate via the main shaft 1002, the laser cladding head 207 remains perpendicular to the arc surface of the moving blade tip. This eliminates the need to individually adjust the complex spatial posture of the laser cladding head 207 for each moving blade, greatly simplifying the motion trajectory programming of the robot or CNC system, reducing auxiliary time, and ensuring the consistency of the weld layer thickness and cladding quality for all moving blades. Subsequent adjustments only require one welding of the inner side of the moving blade tip, thus significantly reducing the number of angle adjustments and steps required when welding multiple moving blades, thereby improving the efficiency of welding multiple moving blades.

[0022] Please see Figure 5 An adjustment assembly 11 is mounted on the top of the rotating seat 1003, and the adjustment assembly 11 includes an electric cylinder 1101. The electric cylinder 1101 is hinged to the top of the rotating seat 1003, and a drive plate 1102 is rotatably connected to one end of the electric cylinder 1101. A gear ring 1103 is fixed to one end of the drive plate 1102, and the gear ring 1103 is rotatably connected to the rotating seat 1003. A driven gear 1104 meshes with the outer side of the gear ring 1103, and the driven gear 1104 is fixedly connected to the clamp 909, and the clamp 909 is rotatably connected to the rotating seat 1003. The specific operation is as follows: When the moving blade is installed at the lower part of the clamping assembly 9, the electric cylinder 1101 can be driven to retract, so that it pulls the gear ring 1103 through the drive plate 1102, and then drives the clamping seat 909 to rotate through the driven gear 1104. This changes the orientation of the clamping block 908, so that the opening of the dovetail groove formed by the two clamping blocks 908 turns outward. This "station flipping" design allows the operator to load the moving blade from the most comfortable and easy-to-operate angle, without having to operate in a narrow space. It also avoids the difficulty of alignment caused by obstructed vision, greatly reducing labor intensity and improving the efficiency and accuracy of assembly and disassembly. During this process, the ball disk 905 will also rotate. At this time, the ball at the bottom of the ball disk 905 can reduce the friction loss between it and the threaded sleeve 904, ensuring that the mechanism rotates smoothly and flexibly, and has a longer service life. After the moving blade is placed, the electric cylinder 1101 is driven to reset it, so that all the moving blades can be controlled to rotate at the same time, so that the lower end is close to a circle, which facilitates the subsequent welding operation.

[0023] In summary, this heavy-duty gas turbine blade tip welding device is used as follows: First, the electric cylinder 1101 is driven to retract, which pulls the gear ring 1103 through the drive plate 1102. Then, the driven gear 1104 drives the clamp 909 to rotate, thereby changing the orientation of the clamp 908. This causes the opening of the dovetail groove formed by the two clamps 908 to turn outward, allowing the operator to load the moving blade from the most comfortable and easy-to-operate angle. During this process, the ball disc 905 also rotates. At this time, the balls at the bottom of the ball disc 905 can reduce the friction loss between it and the threaded sleeve 904, ensuring that the mechanism rotates smoothly and flexibly, and has a longer service life. Secondly, multiple moving blades are placed at the bottom of the clamp 909. At this time, a dovetail groove is formed between the two clamping blocks 908, which can initially limit the position of the moving blade connecting seat. The operation method during placement is similar to installing the moving blade into the dovetail groove of the wheel; simply insert it to complete the initial positioning. Subsequently, the servo motor 901 is started, causing the gear column 902 to drive the gear ring 903 to rotate, which in turn drives the threaded sleeve 904 to rotate inside the top shell 8. At this time, the threaded groove between the threaded sleeve 904 and the top shell 8 can drive the threaded sleeve 904 to move upward, which in turn pulls the pull rod 906 through the ball disc 905, causing the connecting rod 907 to drive the two clamping blocks 908 to move towards the center, thus connecting the moving blade. The mounting bracket is clamped and fixed. Since the tip of a single moving blade is arc-shaped, and multiple moving blades are installed at the bottom of the clamping assembly 9, their tips will form a circle. Therefore, during the welding process on the tip of the moving blade, the angle of the laser cladding head 207 remains unchanged. When the shift motor 1001 drives the rotating seat 1003 to rotate through the main shaft 1002, the laser cladding head 207 can always be perpendicular to the arc surface of the tip of the moving blade. There is no need to adjust the complex spatial posture of the laser cladding head 207 for each moving blade individually. This greatly simplifies the motion trajectory programming of the robot or CNC system, reduces auxiliary time, and ensures the consistency of the thickness and cladding quality of the welding layer of all moving blades. Next, during the welding process on the tip of the moving blade, inert gas in the laser cladding head 207 will carry the solder towards the tip of the moving blade. At this time, the falling solder can be collected by the waste bin 304, while the baffle 309 can block the solder passing through the edge of the moving blade, thereby avoiding excess solder splashing. In addition, filter plates are installed on both the waste bin 304 and the baffle 309 to facilitate the airflow and prevent the airflow from blowing out the powdery solder inside. Then, during welding on the other side of the blade tip, the reduction motor 203 drives the drive gear 204 to roll on the rack 205, which allows the slide block 202 to slide to the other end under the guidance of the guide seat 201, automatically changing the position and angle of the laser cladding head 207. During this process, the connecting column 206 pushes the pressure plate 301, causing the lifting seat 303 to move the waste box 304 downward along the axis of the column 305, automatically avoiding interference with the movement path of the laser cladding head 207. At the same time, the pressure plate 301 slides on the light rod 302 and separates from the slide bar 306. At this time, the higher baffle 309 will push the guide plate 307 through the pulley plate 308 under the action of gravity, thereby pulling the slide bar 306 to center it. The two baffles 309 will also automatically retract into the waste box 304. When the laser cladding head 207... After moving to the other side of the moving blade, the connecting column 206 will also pull the light rod 302 through the pressure plate 301, causing the waste bin 304 to move up to the receiving area below the moving blade. Then the pressure plate 301 will also push another slide bar 306, which will pull the guide plate 307 to squeeze the pulley plate 308, thereby driving the baffle 309 on the other side to move up. Thus, when the position of the laser cladding head 207 is changed, the baffle 309 can be automatically switched, eliminating the need for manual adjustment or replacement of the protective device. This achieves intelligent following between the protective area and the welding area, greatly improving the efficiency of multi-station welding. In addition, the balance system composed of the pulley seat 4, the connecting rope 5 and the counterweight 6 uses the gravity of the counterweight 6 to provide an upward balancing force for the waste bin 304 and the welding material collected inside, significantly reducing the load that the driving pressure plate 301 needs to overcome. Finally, after welding, the output shaft of the servo motor 901 is controlled to rotate in the opposite direction. As the screw sleeve 904 moves down, the pull rod 906 will press the connecting rod 907 under the action of gravity, causing the two clamping blocks 908 to open, thereby loosening the connecting seat of the moving blade. Then, the angle of the clamping block 908 is adjusted by the adjusting component 11 to facilitate the removal of the moving blade.

[0024] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A welding device for the tip of a heavy-duty gas turbine blade, characterized in that, The system includes a base (1) and a clamping assembly (9). A welding assembly (2) is mounted on one top end of the base (1), and a protective assembly (3) is provided on one side of the welding assembly (2). A support column (7) is fixed to the outer top end of the base (1), and a top shell (8) is mounted on the top of the support column (7). The clamping assembly (9) is located inside the top shell (8), and the clamping assembly (9) includes a servo motor (901). The servo motor (901) is fixed to the top of one end of the top shell (8), and the output of the servo motor (901) is... A toothed column (902) is connected to the end of the toothed column (902), a toothed ring (903) is engaged on the outside of the toothed column (902), and a threaded sleeve (904) is fixed on the outside of the toothed ring (903). The lower top surface of the threaded sleeve (904) abuts against a ball bearing disc (905), and a pull rod (906) is installed at the bottom of the ball bearing disc (905). The lower end of the pull rod (906) is rotatably connected to a connecting rod (907), and the lower end of the connecting rod (907) is rotatably connected to a clamping block (908). A clamping seat (909) is slidably connected to the outside of the clamping block (908).

2. The heavy-duty gas turbine blade tip welding device according to claim 1, characterized in that, The threaded sleeve (904) is threadedly connected to the top shell (8), and the cross-section of the threaded sleeve (904) is L-shaped.

3. The heavy-duty gas turbine blade tip welding device according to claim 1, characterized in that, The welding assembly (2) includes a guide seat (201), a slide seat (202) is slidably connected to one side of the guide seat (201), and a geared motor (203) is arranged on one side of the slide seat (202). The output end of the geared motor (203) is connected to a drive gear (204), and a rack (205) meshes with one side of the drive gear (204). A connecting column (206) is arranged on one side of the slide seat (202), and a laser cladding head (207) is provided at one end of the connecting column (206).

4. The heavy-duty gas turbine blade tip welding device according to claim 3, characterized in that, The rack (205) is fixedly connected to the guide seat (201), and the upper part of the guide seat (201) is U-shaped.

5. The heavy-duty gas turbine blade tip welding device according to claim 3, characterized in that, The protective component (3) includes a pressure plate (301), one end of the connecting column (206) is rotatably connected to the pressure plate (301), and the lower end of the pressure plate (301) is slidably connected to a light rod (302). The two ends of the light rod (302) are fixedly connected to a lifting seat (303), and one end of the lifting seat (303) is fixedly connected to a waste bin (304). The lifting seat (303) is slidably connected to a column (305), and the column (305) is fixedly connected to the base (1).

6. The heavy-duty gas turbine blade tip welding device according to claim 5, characterized in that, A slide bar (306) is slidably connected to the lower end of one side of the waste bin (304), and a guide plate (307) is fixed to the top of one end of the slide bar (306). A pulley plate (308) is abutted on one side of the guide plate (307), and a baffle (309) is installed on the upper end of the pulley plate (308). Both the baffle (309) and the pulley plate (308) are slidably connected to the waste bin (304).

7. The heavy-duty gas turbine blade tip welding device according to claim 6, characterized in that, The number of sliders (306) is set to two, and the sliders (306) are L-shaped.

8. The heavy-duty gas turbine blade tip welding device according to claim 6, characterized in that, The top of the column (305) is provided with a pulley seat (4), and the top of the pulley seat (4) is provided with a connecting rope (5). One end of the connecting rope (5) is connected to a counterweight (6), and the other end of the connecting rope (5) is fixedly connected to the lifting seat (303).

9. The heavy-duty gas turbine blade tip welding device according to claim 1, characterized in that, A shifting assembly (10) is connected to the center of the top of the top shell (8), and the shifting assembly (10) includes a shifting motor (1001). The shifting motor (1001) is placed in the center of the top of the top shell (8), and a main shaft (1002) is fixed at the output end of the shifting motor (1001). A rotating seat (1003) is placed at the lower end of the main shaft (1002), and the rotating seat (1003) is rotatably connected to the top shell (8).

10. A heavy-duty gas turbine blade tip welding device according to claim 9, characterized in that, An adjustment assembly (11) is mounted on the top of the rotating seat (1003), and the adjustment assembly (11) includes an electric cylinder (1101). The electric cylinder (1101) is hinged to the top of the rotating seat (1003), and a drive plate (1102) is rotatably connected to one end of the electric cylinder (1101). A gear ring (1103) is fixed to one end of the drive plate (1102), and the gear ring (1103) is rotatably connected to the rotating seat (1003). A driven gear (1104) meshes with the outer side of the gear ring (1103), and the driven gear (1104) is fixedly connected to the clamp (909), and the clamp (909) is rotatably connected to the rotating seat (1003).

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