Boiler membrane wall edge flat steel welding tooling

Abstract

The utility model relates to welding frock technical field discloses a kind of boiler membrane type wall edge flat steel welding frock, including bottom plate, flat steel and welding wire box, the top left and right sides of bottom plate are fixedly connected with vertical plate, slidingly connected with mounting plate between the adjacent of two vertical plate, the top of bottom plate is fixedly connected with push rod, the top of push rod is fixedly connected with the mounting plate, the top rear side of mounting plate is rotatably connected with adjusting plate one, the top left and right sides of push rod are rotatably connected with telescopic link one, the top of two telescopic link one is rotatably connected with the adjusting plate one. In the utility model, by vertical plate, mounting plate and push rod constitute lifting adjusting structure, cooperate telescopic link one, two and can accurately adjust flat steel position and angle, then by telescopic link three secondary compression, welding head, welding box automatic sliding welding, cooperate welding wire box continuous supply silk, completely get rid of artificial handheld welding gun operation, to guarantee welding quality.

Description

Technical Field

[0001] This utility model relates to the field of welding fixture technology, and in particular to a welding fixture for the edge flat steel of a boiler membrane wall. Background Technology

[0002] As a key component of boilers, the boiler membrane wall is used in industrial boilers and power plant boilers, playing an important role in sealing the furnace, bearing the pressure inside the furnace, and protecting the furnace wall. Its edge flat steel refers to the long strip-shaped metal parts attached to the edge of the membrane wall tube screen, which has a certain strength and toughness. Since the flat steel is welded later, a welding fixture for the edge flat steel of the boiler membrane wall is required.

[0003] Traditional welding of flat steel edges for boiler membrane walls relies on relatively simple tooling combinations. The basic structure includes a base support for placing and fixing the membrane wall tubes to be welded, a screw-nut structure where manual rotation of the screw clamps presses the flat steel against the tubes to ensure their relative position is fixed during welding, and a standard positioning support to assist operators in initially aligning the flat steel to the tube edges. This process is cumbersome. Current technology has introduced liftable work platforms to improve worker posture and reduce labor intensity. Hydraulic or pneumatic clamping devices replace some manual operation, increasing clamping speed and improving clamping force uniformity. However, workers still need to hold the welding torch, making it impossible to completely eliminate manual operation. This makes it difficult to guarantee stability and consistency under long-term, high-intensity welding operations. Especially for welding membrane wall edge flat steel with complex shapes or high precision requirements, manual operation makes it difficult to accurately control the torch's trajectory, welding speed, and heat input, resulting in significant fluctuations in welding quality, a high scrap rate, and negatively impacting overall weld quality. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a welding fixture for the edge flat steel of a boiler membrane wall, which aims to improve the problem that in the existing technology, even with the addition of a lifting platform, workers still need to hold a welding gun to weld, making it impossible to completely eliminate manual operation and making it difficult to guarantee the stability and consistency of long-term, high-intensity welding operations.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a welding fixture for flat steel edge bars of a boiler membrane wall, comprising a base plate, flat steel bars, and a welding wire box. Vertical plates are fixedly connected to the top left and right sides of the base plate. An mounting plate is slidably connected between adjacent vertical plates. A push rod is fixedly connected to the top of the base plate, and the top end of the push rod is fixedly connected to the mounting plate. An adjusting plate is rotatably connected to the top rear side of the mounting plate. Telescopic rods are rotatably connected to the top left and right sides of the push rod, and the top ends of both telescopic rods are rotatably connected to the adjusting plate. The top rear side of the adjusting plate... A support plate is movably connected, and telescopic rods two are rotatably connected to the left and right sides of the bottom of the support plate. The bottom ends of the two telescopic rods two are rotatably connected to the adjusting plate one. A groove is opened on the rear side of the outer wall of the support plate, and a clamping assembly is provided on the inner wall of the groove. Telescopic rods three are fixedly connected to the left and right sides of the inner wall of the support plate. A welding box is slidably connected to the top of the support plate, and a welding head is rotatably connected to the rear side of the push rod. A motor is fixedly connected to the right side of the outer wall of the welding box, and the output end of the motor is fixedly connected to the welding head. A moving mechanism is provided at the bottom of the base plate, and the moving mechanism is used to move the device.

[0006] As a further description of the above technical solution:

[0007] The moving mechanism includes multiple moving wheels, which are fixedly connected to the four corners of the bottom of the base plate. Brake pads are provided on the outer sides of the multiple moving wheels. Threaded rods are threadedly connected to the four corners of the bottom of the base plate. Foot seats are rotatably connected to the bottom of the multiple threaded rods. Limiting rods are fixedly connected to the outer walls of the multiple foot seats. The multiple limiting rods are slidably connected to the base plate. Rotating handles are fixedly connected to the tops of the multiple threaded rods through the base plate. Wear-resistant pads are fixedly connected to the noses of the foot seats.

[0008] As a further description of the above technical solution:

[0009] The clamping assembly includes multiple springs, which are respectively fixedly connected to the left and right sides of the inner wall of the groove, and a clamping plate is fixedly connected to one adjacent end of each spring.

[0010] As a further description of the above technical solution:

[0011] The support plate has multiple scale grooves on its top left and right sides, and the spacing between the multiple scale grooves is equal.

[0012] As a further description of the above technical solution:

[0013] Each of the two upright plates has a sliding groove on one of its adjacent sides, and a slider is fixedly connected to the left and right sides of the outer wall of the mounting plate. The two sliders are slidably connected to the corresponding sliding grooves.

[0014] As a further description of the above technical solution:

[0015] An installation box is fixedly connected to the top right side of the installation plate, and an alarm light is fixedly connected to the top of the installation box.

[0016] As a further description of the above technical solution:

[0017] A controller is fixedly connected to the right side of the outer wall of the right-side upright plate. The controller is electrically connected to the first telescopic rod, the second telescopic rod, the third telescopic rod, and the motor.

[0018] As a further description of the above technical solution:

[0019] An information board is provided on the top of the base plate, and screws are threaded to the four corners of the information board. The bottom ends of the screws are threaded to the base plate.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the lifting and adjusting structure composed of the upright plate, the mounting plate and the push rod, together with the first and second telescopic rods, can accurately adjust the position and angle of the flat steel so that it fits tightly against the boiler membrane wall. At the same time, the spring in the groove and the clamping plate self-adaptively fix the flat steel, and then the telescopic rods press it twice to ensure the welding accuracy. The motor drives the welding head and welding box to automatically slide and weld, and the welding wire box continuously supplies wire, completely eliminating the need for manual hand-held welding gun operation, thereby ensuring the welding quality.

[0022] 2. In this utility model, the design of the movable wheel and brake pad allows the operator to easily control the brake pad to fit tightly with the movable wheel, effectively preventing the tooling from shifting due to accidental collision after initial positioning. Furthermore, rotating the handle allows the foot to move down via threaded transmission, the limiting rod ensures the foot moves in a directional manner, and the wear-resistant pad applies pressure to the ground. This double fixation ensures that the tooling remains stable and without displacement throughout the welding process, creating a stable foundation for precise welding. Attached Figure Description

[0023] Figure 1 This is a perspective view of a welding fixture for the edge flat steel of a boiler membrane wall proposed in this utility model.

[0024] Figure 2 This is a partial structural schematic diagram of a welding fixture for the edge flat steel of a boiler membrane wall proposed in this utility model;

[0025] Figure 3 This is a partial structural exploded view of a welding fixture for the edge flat steel of a boiler membrane wall proposed in this utility model;

[0026] Figure 4A schematic diagram of a motor for welding flat steel edge bars of a boiler membrane wall proposed in this utility model;

[0027] Figure 5 This is a schematic diagram of the moving mechanism of a welding fixture for the edge flat steel of a boiler membrane wall proposed in this utility model.

[0028] Figure 6 This is a schematic diagram of the moving wheels of a welding fixture for the edge flat steel of a boiler membrane wall proposed in this utility model.

[0029] Legend:

[0030] 1. Base plate; 2. Moving mechanism; 201. Casters; 202. Brake pads; 203. Threaded rod; 204. Foot; 205. Limit rod; 206. Rotary handle; 207. Wear-resistant pad; 3. Vertical plate; 4. Mounting plate; 5. Push rod; 6. Adjusting plate one; 7. Telescopic rod one; 8. Support plate; 9. Telescopic rod two; 10. Groove; 11. Spring; 12. Clamping plate; 13. Flat steel; 14. Telescopic rod three; 15. Welding box; 16. Welding head; 17. Motor; 18. Welding wire box; 19. Scale groove; 20. Slide groove; 21. Slider; 22. Mounting box; 23. Warning light; 24. Controller; 25. Information board; 26. Screw. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 , Figure 2 and Figure 3This utility model provides an embodiment of a welding fixture for the edge flat steel of a boiler membrane wall, comprising a base plate 1, flat steel 13, and a welding wire box 18. The base plate 1 serves as the basic support component of the entire fixture, providing an installation platform for other components. Vertical plates 3 are fixedly connected to the top left and right sides of the base plate 1, providing vertical support and positioning for installing and connecting other components. Mounting plates 4 are slidably connected between adjacent vertical plates 3, allowing for easy adjustment of their position to accommodate different welding requirements. A push rod 5 is fixedly connected to the top of the base plate 1, used to push the mounting plates 4, enabling the mounting plates 4 to slide between the vertical plates 3, thereby adjusting the position of the mounting plates 4 and their connected components. The top end of the push rod 5 is fixedly connected to the mounting plate 4, ensuring the push rod... Push rod 5 can stably drive the mounting plate 4 to move. An adjusting plate 6 is rotatably connected to the top rear side of the mounting plate 4, and can rotate around its connection point with the mounting plate 4 to adjust the angle of the support plate 8 to meet welding work at different angles. Telescopic rods 7 are rotatably connected to the top left and right sides of push rod 5. The top ends of both telescopic rods 7 are rotatably connected to the adjusting plate 6. The telescopic rods 7, through extension, retraction, and rotation, assist the adjusting plate 6 in changing its angle, making the angle adjustment of the adjusting plate 6 more flexible and precise. A support plate 8 is rotatably connected to the top rear side of the adjusting plate 6. The support plate 8 provides a support platform for the clamping assembly and welding box 15, ensuring their stability during operation. Telescopic rods 9 are rotatably connected to the bottom left and right sides of the support plate 8. The bottom ends of both telescopic rods 9 are rotatably connected to the adjusting plate 6. 6. A rotating connection is made, and the second telescopic rod 9, through extension and rotation, further assists the support plate 8 in adjusting its angle. Working in conjunction with the first telescopic rod 7, it makes the angle adjustment of the support plate 8 more reliable. A groove 10 is provided on the rear side of the outer wall of the support plate 8 for installing a clamping assembly, providing space for clamping the flat steel 13. The inner wall of the groove 10 is provided with a clamping assembly, which is used to clamp the flat steel 13 to ensure that the flat steel 13 is fixed in position during welding. The left and right sides of the inner wall of the support plate 8 are fixedly connected to the third telescopic rod 14. A welding box 15 is slidably connected to the top of the support plate 8. The welding box 15 is used to store some of the equipment and materials required for welding and can slide automatically on the support plate 8 to facilitate the adjustment of the welding position. A welding head 16 is rotatably connected to the rear side of the push rod 5. The welding head 16 is used for welding. The key component of the welding operation can rotate around the connection point with the push rod 5 to adjust the welding angle. A motor 17 is fixedly connected to the right side of the outer wall of the welding box 15. The motor 17 provides power to the welding head 16, driving the welding head 16 to perform welding actions. The output end of the motor 17 is fixedly connected to the welding head 16 to ensure that the power of the motor 17 can be effectively transmitted to the welding head 16. A moving mechanism 2 is provided at the bottom of the base plate 1. The moving mechanism 2 is used to move the device, so that the entire fixture can be flexibly moved to different working locations, improving the mobility of the fixture. The clamping assembly includes multiple springs 11, which are fixedly connected to the left and right sides of the inner wall of the groove 10 respectively. The springs 11 play the role of elastic buffering and providing clamping force. A clamping plate 12 is fixedly connected to one adjacent end of the multiple springs 11.Under the action of spring 11, clamping plate 12 can clamp flat steel 13;

[0033] Specifically, the flat steel 13 is placed in the groove 10 on the rear side of the outer wall of the support plate 8. Multiple springs 11 on the left and right sides of the inner wall of the groove 10 push the clamping plate 12 connected to them due to their own elastic force. These springs 11 can adapt to the thickness of the flat steel 13, ensuring that the clamping plate 12 tightly clamps the flat steel 13, preventing displacement of the flat steel 13 during subsequent welding. When adjusting the height, the push rod 5 is activated. Since the top of the push rod 5 is fixedly connected to the mounting plate 4, the mounting plate 4 slides between the two vertical plates 3. The extension and retraction of the push rod 5 causes the mounting plate 4 to move up and down, thereby adjusting the height of the entire welding device so that the flat steel 13 is at a suitable height relative to the boiler membrane wall. The extension and retraction of the telescopic rod 7 is controlled. The two ends of the telescopic rod 7 are rotatably connected to the push rod 5 and the adjusting plate 6, respectively. The telescopic mechanism allows the adjusting plate 16 to rotate around its connection with the mounting plate 4, adjusting the horizontal angle. The telescopic rod 29 extends and retracts, causing the support plate 8 to rotate around its connection with the adjusting plate 16, adjusting the vertical angle. Through these operations, the distance and angle between the flat steel 13 and the boiler membrane wall are precisely adjusted, ensuring the flat steel 13 is accurately close to the furnace wall. The telescopic rods 314 on the left and right sides of the inner wall of the support plate 8 extend, further pushing the flat steel 13 out and pressing it firmly against the boiler membrane wall. The motor 17 is started, and its output drives the welding head 16 to rotate to a suitable welding angle. Simultaneously, the welding box 15 slides on top of the support plate 8, moving and welding simultaneously. The welding wire box 18 continuously provides welding wire, completing the welding work between the flat steel 13 and the edge of the boiler membrane wall.

[0034] Reference Figure 1 , Figure 5 and Figure 6The moving mechanism 2 includes multiple moving wheels 201, which are fixedly connected to the four corners of the bottom of the base plate 1. The moving wheels 201 enable the tooling to move, facilitating its transport to different work locations. Brake pads 202 are provided on the outer sides of each moving wheel 201, controlling its rotation and stopping to ensure the tooling stops stably at the designated position and prevents it from moving arbitrarily. Threaded rods 203 are threadedly connected to the four corners of the bottom of the base plate 1. The height of the feet 204 can be adjusted by rotating the threaded rods 203. The bottoms of the threaded rods 203 are rotatably connected to the feet 204, providing stable support points for the tooling and simultaneously... The rod 203 is used to fine-tune the height of the tooling. The outer walls of multiple feet 204 are fixedly connected to limit rods 205. The multiple limit rods 205 are slidably connected to the base plate 1 to restrict the movement direction of the feet 204, ensuring that the feet 204 can only move in the vertical direction, making the tooling height adjustment more stable and precise. The tops of multiple threaded rods 203 penetrate the base plate 1 and are fixedly connected to a rotating handle 206. The rotating handle 206 allows the operator to manually rotate the threaded rods 203 to adjust the height of the feet 204. The bottom of the feet 204 is fixedly connected to a wear-resistant pad 207. The wear-resistant pad 207 can increase the friction between the feet 204 and the ground, improve the stability of the tooling, and reduce the wear between the feet 204 and the ground.

[0035] Specifically, four casters 201 are distributed at the four corners of the base plate 1 to ensure smooth movement of the equipment and suitability for flat ground. Each caster 201 has a brake pad 202 on its outer side, which can be locked individually or simultaneously to prevent accidental slippage of the equipment and improve safety. By rotating the handle 206, the threaded rod 203 is moved up and down, thereby adjusting the height of the foot 204. The bottom of the foot 204 is equipped with a wear-resistant pad 207 to increase friction, prevent slippage, and reduce wear on the ground. The limit rod 205 is slidably connected to the base plate 1 to prevent the foot 204 from rotating with the threaded rod 203, ensuring vertical lifting and improving adjustment accuracy.

[0036] Reference Figure 1 , Figure 2 and Figure 3The support plate 8 has multiple scale grooves 19 on its top left and right sides, with equal spacing between them. The scale grooves 19 on the top of the support plate 8 provide a spacing reference for precise adjustment of the welding box 15. Each of the two vertical plates 3 has a sliding groove 20 on an adjacent side. The outer walls of the mounting plate 4 are fixedly connected to sliders 21 on both the left and right sides. The two sliders 21 are slidably connected to the corresponding sliding grooves 20. The sliding grooves 20 on the inner side of the vertical plate 3 are slidably engaged with the sliders 21 on the mounting plate 4, allowing the mounting plate 4 to be vertically raised and lowered and locked at the required height. The mounting box 22 is fixedly connected to the top right side of the mounting plate 4. An alarm light 23 is fixedly connected to the top of the mounting box 22. The alarm light 23 on the top of the mounting box 22 is triggered when the equipment malfunctions, alerting the user through sound and light signals.

[0037] Specifically, the scale groove 19 on the top of the support plate 8 provides a spacing reference, which facilitates precise adjustment of the position of the welding box 15. The sliding groove 20 on the inner side of the upright plate 3 slides and engages with the slider 21 of the mounting plate 4, so that the mounting plate 4 can be vertically raised and lowered and locked at the required height. The alarm light 23 on the top of the mounting box 22 is triggered when the equipment is abnormal, and alerts the user through sound and light signals.

[0038] Reference Figure 1 , Figure 2 and Figure 4 A controller 24 is fixedly connected to the right side of the outer wall of the right upright plate 3. The controller 24 is electrically connected to the telescopic rod 7, telescopic rod 9, telescopic rod 14 and motor 17 respectively. The controller 24 is the core control unit. The operator sends commands to the telescopic rod 7, telescopic rod 9, telescopic rod 14 and motor 17 through it to precisely control the action of each component and realize the automated operation of welding angle, position, clamping and welding of flat steel 13. An information board 25 is set on the top of the base plate 1. Screws 26 are threaded to the four corners of the information board 25. The bottom ends of the screws 26 are threaded to the base plate 1. The information board 25 is fixed to the base plate 1 by the screws 26 and is used to display equipment parameters and operation guide information to assist in the operation.

[0039] Specifically, the controller 24 serves as the core control unit. Operators use it to send commands to the telescopic rod 1 7, telescopic rod 2 9, telescopic rod 3 14, and motor 17 to precisely control the actions of each component, thereby automating the welding angle, position, clamping, and welding of the flat steel 13. The information board 25 is fixed to the base plate 1 with screws 26 to display equipment parameters and operation guide information to assist in the operation.

[0040] Working principle: First, the flat steel 13 is placed in the groove 10 on the rear side of the outer wall of the support plate 8. Multiple springs 11 on the left and right sides of the inner wall of the groove 10 push the clamping plate 12 connected to it. The elastic force of the multiple springs 11 can adapt to the thickness of the flat steel 13, so that the clamping plate 12 tightly clamps the flat steel 13, achieving a stable fixation of the flat steel 13 and preventing displacement of the flat steel 13 during subsequent welding, thus ensuring the accuracy of the welding position. Next, the push rod 5 is activated. Since the top of the push rod 5 is fixedly connected to the mounting plate 4, and the mounting plate 4 slides between the two vertical plates 3, the extension and retraction of the push rod 5 can drive the mounting plate 4 to move up and down, thereby adjusting the height of the entire welding device so that the flat steel 13 is at a suitable height position with the boiler membrane wall. At the same time, by controlling the extension and retraction of the telescopic rod 7, since its two ends are rotatably connected to the push rod 5 and the adjusting plate 6 respectively, the adjusting plate 6 can rotate around The horizontal angle is adjusted by rotating the connection between the mounting plate 4 and the installation plate 4. The extension and retraction of the telescopic rod 2 9 allows the support plate 8 to rotate around the connection between the adjustment plate 1 6 and the installation plate 4, thus adjusting the vertical angle. In this way, the distance and angle between the flat steel 13 and the boiler membrane wall can be precisely adjusted, allowing the flat steel 13 to accurately fit close to the furnace wall. Subsequently, the telescopic rods 3 14 on the left and right sides of the inner wall of the support plate 8 extend, pushing the flat steel 13 further out and pressing it against the boiler membrane wall. Then, the motor 17 is started, and the output end of the motor 17 drives the welding head 16 to rotate to the appropriate welding angle. At the same time, the welding box 15 slides on the top of the support plate 8, moving and welding at the same time. The welding wire box 18 continuously provides welding wire to the welding machine. The entire welding process is automatically completed by the mechanical structure of the tooling and the drive of the motor 17, without the need for workers to operate the welding gun by hand, which greatly improves the stability and consistency of the welding.

[0041] After the tooling is moved to the predetermined position, to prevent accidental movement during subsequent operations, the moving wheels 201 need to be fixed. Each moving wheel 201 has a brake pad 202 on its outer side. The operator simply operates the brake pad 202 to make it tightly engage with the moving wheel 201, increasing friction and thus limiting the rotation of the moving wheel 201, achieving initial fixation of the tooling. Then, the operator rotates the handle 206, which is fixedly connected to the threaded rod 203. Therefore, rotating the handle 206 will drive the threaded rod 203 to rotate. Since the threaded rod 203 is threadedly connected to the four corners of the bottom of the base plate 1, according to the threaded transmission... In principle, the threaded rod 203 moves downwards while rotating. During this downward movement, the foot 204 is rotatably connected to the bottom of the threaded rod 203, and a limit rod 205 is fixedly connected to the outer wall of the foot 204. The function of the limit rod 205 is to restrict the rotation of the foot 204, so that it can only move downwards with the rotation of the threaded rod 203. As the threaded rod 203 continues to move downwards, the wear-resistant pad 207 at the bottom of the foot 204 will gradually contact the ground and exert a certain pressure on the ground, thereby firmly fixing the tooling to the ground and ensuring that the tooling will not shift during the welding process, thus ensuring the smooth progress of the welding work.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A boiler membrane wall edge flat bar welding fixture comprising a base plate (1), a flat bar (13) and a welding wire box (18), characterized in that: The top left and right sides of the base plate (1) are fixedly connected to the upright plates (3). The two adjacent upright plates (3) are slidably connected to the mounting plates (4). The top of the base plate (1) is fixedly connected to the push rod (5). The top end of the push rod (5) is fixedly connected to the mounting plate (4). The top rear side of the mounting plate (4) is rotatably connected to the adjustment plate (6). The top left and right sides of the push rod (5) are rotatably connected to the telescopic rod (7). The top ends of the two telescopic rods (7) are rotatably connected to the adjustment plate (6). The top rear side of the adjustment plate (6) is rotatably connected to the support plate (8). The bottom left and right sides of the support plate (8) are rotatably connected to the telescopic rod (9). The bottom ends of the two telescopic rods (9) are rotatably connected to the adjusting plate (6). The outer wall of the support plate (8) has a groove (10) on the rear side. The inner wall of the groove (10) is provided with a clamping assembly. The left and right sides of the inner wall of the support plate (8) are fixedly connected to the telescopic rods (14). The top of the support plate (8) is slidably connected to the welding box (15). The rear side of the push rod (5) is rotatably connected to the welding head (16). The right side of the outer wall of the welding box (15) is fixedly connected to the motor (17). The output end of the motor (17) is fixedly connected to the welding head (16). The bottom of the base plate (1) is provided with a moving mechanism (2). The moving mechanism (2) is used to move the device.

2. The boiler membrane wall edge flat steel welding tooling according to claim 1, characterized in that: The moving mechanism (2) includes multiple moving wheels (201), which are fixedly connected to the four corners of the bottom of the base plate (1). Brake pads (202) are provided on the outer side of each of the multiple moving wheels (201). Threaded rods (203) are threadedly connected to the four corners of the bottom of the base plate (1). Foot seats (204) are rotatably connected to the bottom of each of the multiple threaded rods (203). Limiting rods (205) are fixedly connected to the outer wall of each of the multiple foot seats (204). The multiple limiting rods (205) are slidably connected to the base plate (1). The top of each of the multiple threaded rods (203) passes through the base plate (1) and is fixedly connected to a rotating handle (206). Wear-resistant pads (207) are fixedly connected to the nose of each foot seat (204).

3. The boiler membrane wall edge flat bar welding tooling of claim 1, wherein: The clamping assembly includes multiple springs (11), which are respectively fixedly connected to the left and right sides of the inner wall of the groove (10), and a clamping plate (12) is fixedly connected to one adjacent end of each spring (11).

4. The boiler membrane wall edge slab welding tooling of claim 1, wherein: The support plate (8) has multiple scale grooves (19) on its top left and right sides, and the spacing between the multiple scale grooves (19) is equal.

5. The boiler membrane wall edge slab welding tooling of claim 1, wherein: Each of the two upright plates (3) has a sliding groove (20) on one of its adjacent sides. The outer walls of the mounting plate (4) are fixedly connected to sliders (21) on both the left and right sides. The two sliders (21) are slidably connected to the corresponding sliding grooves (20).

6. The boiler membrane wall edge slab welding tooling of claim 1, wherein: An installation box (22) is fixedly connected to the top right side of the installation plate (4), and an alarm light (23) is fixedly connected to the top of the installation box (22).

7. The boiler membrane wall edge slab welding tooling of claim 1, wherein: A controller (24) is fixedly connected to the right side of the outer wall of the right-side upright plate (3). The controller (24) is electrically connected to the first telescopic rod (7), the second telescopic rod (9), the third telescopic rod (14), and the motor (17).

8. The boiler membrane wall edge slab welding tooling of claim 1, wherein: An information board (25) is provided on the top of the base plate (1). Screws (26) are threaded to the four corners of the information board (25), and the bottom ends of the screws (26) are threaded to the base plate (1).

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