Flexible movable arm tailor-welding device

Abstract

The utility model belongs to the technical field of movable arm tailor-welding, and particularly relates to a flexible movable arm tailor-welding device which comprises a base. A first supporting seat is fixedly connected to the side wall of the top of the base; a driving track is fixedly connected to the side wall of the top of the first supporting seat; the pair of driving rails is symmetrically arranged at the top of the first supporting seat; a driving track, a movable arm support, a front supporting shaft, a driven track, a rear supporting shaft and a movable arm plate are arranged, the hole distance between a cross beam body hole position and a movable arm plate hole position in the X direction can be positioned, a third supporting seat, a cross beam base plate and a cross beam body are arranged, and the hole distance between the cross beam body hole position and the movable arm plate hole position in the Y direction can be positioned; the movable arm plate and the cross beam body are guaranteed to keep accurate relative positions in the tailor-welding process, meanwhile, the arrangement can be adjusted according to the actual size of the movable arm plate, the same tailor-welding device can be suitable for production of movable arm plates of various specifications, and the requirements for replacing the device and adjusting the arrangement are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of boom welding, and specifically relates to a flexible boom welding device. Background Art

[0002] A flexible boom refers to a boom component with flexible characteristics in terms of structural design and material use. Compared with traditional rigid booms, the flexible boom has lower rigidity and can absorb and disperse impact loads to a certain extent, reducing vibration and noise. At the same time, the flexible boom has a certain elasticity and can deform when subjected to external forces and return to its original state after the external forces disappear. This characteristic makes it have better adaptability and stability under certain specific working conditions.

[0003] In the prior art, installers first fix the boom plate and the boom crossbeam at the position where welding is required, and then use welding equipment to weld them. During long-term use and observation, it is found that during the welding process of the boom, different-sized booms need to replace different welding devices according to the actual size during processing, resulting in an increase in the workload of boom welding.

[0004] Therefore, the utility model provides a flexible boom welding device. Summary of the Utility Model

[0005] In order to make up for the deficiencies of the prior art and solve at least one problem proposed in the background art, a flexible boom welding device is proposed.

[0006] The technical solution adopted by the present utility model to solve its technical problems is as follows: A flexible boom welding and assembling device of the present utility model includes a base; a first support seat is fixedly connected to the side wall of the top of the base; a driving track is fixedly connected to the side wall of the top of the first support seat; the driving tracks are a pair and symmetrically arranged on the top of the first support seat; a boom support is slidably connected to the side wall of the top of the driving track; a front support shaft is installed on the side wall of the top of the boom support; a second support seat is fixedly connected to the side wall of the top of the base; a driven track is fixedly connected to the side wall of the top of the second support seat; the driven tracks are a pair and symmetrically arranged on the top of the second support seat; a rear support shaft is slidably connected to the side wall of the top of the driven track; a third support seat is fixedly connected to the side wall of the top of the base; the third support seat is arranged between the first support seat and the second support seat; a beam backing plate is installed on the side wall of the top of the third support seat; the beam backing plates are a pair and symmetrically arranged on the top of the third support seat; a beam body is provided on the side wall of the top of the pair of beam backing plates; a support assembly is installed in the middle of the side wall of the beam body; a boom plate is provided in the middle of the side wall of the front support shaft; the other end of the boom plate is installed on the side wall of the rear support shaft. By setting the driving track, boom support, front support shaft, driven track, rear support shaft and boom plate in this step, the hole distance in the X direction between the holes of the beam body and the boom plate can be positioned. By setting the third support seat, beam backing plate and beam body, the hole distance in the Y direction between the holes of the beam body and the boom plate can be positioned, ensuring that the boom plate and the beam body maintain an accurate relative position during the welding and assembling process, reducing dimensional deviations caused by machining errors, assembly errors, etc. At the same time, this setting can be adjusted according to the actual size of the boom plate, enabling the same set of welding and assembling equipment to be applicable to the production of boom plates of various specifications, reducing the need to replace equipment and adjust settings.

[0007] Preferably, a plurality of fourth support seats are fixedly connected to the side wall of the top of the base; a boom seat is fixedly connected to the side wall of the top of the fourth support seat; a plurality of slot holes are formed in the middle of the side wall of the boom seat; a first clamping bolt is slidably fitted to the middle of the inner side wall of the slot hole; a first clamping nut is provided in the middle of the side wall of the first clamping bolt. By setting the boom seat, slot holes, first clamping bolt and first clamping nut in this step, the boom plate during the welding and assembling process can be fixed, ensuring that each component of the boom plate is in the correct relative position before welding, reducing the decrease in structural strength caused by position deviation. At the same time, the fixed boom plate can form a more stable structure after welding, improving the overall stiffness and load-bearing capacity of the boom plate. Moreover, this setting can change the position where the first clamping bolt is inserted into the slot hole according to the size of the boom plate, enabling the first clamping bolt and the first clamping nut to fix boom plates of different sizes, improving the flexibility of the welding and assembling equipment.

[0008] Preferably, a fixing seat is fixedly connected to the top side wall of the third support seat; a pressing seat is fixedly connected to the middle of the side wall of the fixing seat; a second clamping bolt is slidably fitted to the middle of the side wall of the pressing seat; a second clamping nut is provided in the middle of the side wall of the second clamping bolt. By setting the fixing seat, the pressing seat, the second clamping bolt and the second clamping nut in this step, the cross beam body during the butt welding process can be fixed, ensuring its position accuracy during the welding process, reducing welding defects caused by position deviation or movement. At the same time, the cross beam body is a key load-bearing component in the structure, and its stability directly affects the stiffness and load-bearing capacity of the entire structure. By fixing the cross beam body, a stable structure can be ensured after welding, improving the overall stability.

[0009] Preferably, the support assembly includes a cross beam support; the cross beam support is fixedly connected to the top of the third support seat; a cross beam support shaft is installed in the middle of the side wall of the cross beam support; the cross beam body is slidably fitted with the cross beam support shaft. By setting the cross beam support and the cross beam support shaft in this step, the cross beam body during the butt welding process can be supported from the top, restricting its movement and deformation during the welding process, reducing weld defects such as cracks, slag inclusions and pores caused by the movement of the cross beam body during the welding process, thereby improving the strength and tightness of the weld. At the same time, the stable support for the cross beam body provides a basis for automatic or semi-automatic butt welding equipment, supporting continuous and efficient welding operations and improving production efficiency.

[0010] Preferably, a plurality of lubricating blocks are fixedly connected to the middle of the side wall of the boom support; the lubricating blocks are slidably connected to the active track. By setting a plurality of lubricating blocks in this step, the frictional resistance between the boom support and the active track can be reduced, making the movement of the boom plate on the active track smoother. At the same time, by applying a lubricant, the wear caused by the friction between the active track and the boom support can be reduced, extending the service life of the active track and the boom support.

[0011] Preferably, a first anti-slip pad is fixedly connected to the end of the first clamping bolt; the first anti-slip pad is made of an elastic material. By setting the first anti-slip pad in this step, when the end of the first clamping bolt clamps the side wall of the boom plate, the friction between the first clamping bolt and the boom plate can be increased, reducing the situation where the butt welding position is inaccurate due to the sliding of the boom plate.

[0012] Preferably, a second anti-slip pad is fixedly connected to the end of the second clamping bolt; the second anti-slip pad is made of an elastic material. By setting the second anti-slip pad in this step, when the second clamping bolt clamps the top of the cross beam body, the friction between the second clamping bolt and the cross beam body can be increased, reducing the situation where the butt welding position is inaccurate due to the sliding of the cross beam body.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. A flexible boom welding and assembly device according to the present utility model can position the hole pitch in the X direction between the hole positions of the crossbeam body and the boom plate by providing an active track, a boom support, a front support shaft, a driven track, a rear support shaft, and a boom plate. By providing a third support seat, a crossbeam backing plate, and a crossbeam body, the hole pitch in the Y direction between the hole positions of the crossbeam body and the boom plate can be positioned, ensuring that the boom plate and the crossbeam body maintain an accurate relative position during the welding and assembly process, reducing dimensional deviations caused by machining errors, assembly errors, etc. At the same time, this setting can be adjusted according to the actual size of the boom plate, enabling the same set of welding and assembly equipment to be applicable to the production of boom plates of multiple specifications, reducing the need to replace equipment and adjust settings.

[0015] 2. A flexible boom welding and assembly device according to the present utility model can fix the boom plate during the welding and assembly process by providing a boom seat, a slot hole, a first clamping bolt, and a first clamping nut, ensuring that all components of the boom plate are in the correct relative position before welding, reducing the decrease in structural strength caused by position deviation. At the same time, the fixed boom plate can form a more stable structure after welding, improving the overall stiffness and load-bearing capacity of the boom plate. Moreover, this setting can change the position where the first clamping bolt is inserted into the slot hole according to the size of the boom plate, enabling the first clamping bolt and the first clamping nut to fix boom plates of different sizes, improving the flexibility of the welding and assembly equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present utility model will be further described below with reference to the accompanying drawings.

[0017] Figure 1 is a three-dimensional view of the present utility model;

[0018] Figure 2 is a schematic structural view of the cooperation between the support shaft and the boom plate in the present utility model;

[0019] Figure 3 is a schematic structural view of the cooperation between the boom seat and the pressing seat in the present utility model;

[0020] Figure 4 is a schematic structural view of the cooperation between the boom plate and the pressing seat in the present utility model;

[0021] Figure 5 is a schematic structural view of the cooperation between the crossbeam support and the crossbeam body in the present utility model;

[0022] LEGEND DESCRIPTION:

[0023] 1. Base; 11. First support base; 12. Driving track; 13. Boom support; 14. Front support shaft; 15. Second support base; 16. Driven track; 17. Rear support shaft; 18. Third support base; 19. Cross beam backing plate; 110. Boom plate; 111. Cross beam body; 2. Fourth support base; 21. Boom seat; 22. Slot hole; 23. First clamping bolt; 24. First clamping nut; 3. Fixed base; 31. Pressing seat; 32. Second clamping bolt; 33. Second clamping nut; 4. Cross beam support; 41. Cross beam support shaft; 5. Lubricating block; 6. First anti-slip pad; 7. Second anti-slip pad. Detailed implementation mode

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] The following gives specific embodiments.

[0026] Such as Figures 1 to 5As shown in the figure, a flexible boom welding and assembly device according to an embodiment of the present utility model includes a base 1; a first support seat 11 is fixedly connected to the side wall of the top of the base 1; a driving track 12 is fixedly connected to the side wall of the top of the first support seat 11; the driving tracks 12 are a pair and are symmetrically arranged on the top of the first support seat 11; a boom support 13 is slidably connected to the side wall of the top of the driving track 12; a front support shaft 14 is installed on the side wall of the top of the boom support 13; a second support seat 15 is fixedly connected to the side wall of the top of the base 1; a driven track 16 is fixedly connected to the side wall of the top of the second support seat 15; the driven tracks 16 are a pair and are symmetrically arranged on the top of the second support seat 15; a rear support shaft 17 is slidably connected to the side wall of the top of the driven track 16; a third support seat 18 is fixedly connected to the side wall of the top of the base 1; the third support seat 18 is arranged between the first support seat 11 and the second support seat 15; a cross beam backing plate 19 is installed on the side wall of the top of the third support seat 18; the cross beam backing plates 19 are a pair and are symmetrically arranged on the top of the third support seat 18; a cross beam body 111 is arranged on the side wall of the top of a pair of the cross beam backing plates 19; a support assembly is installed in the middle of the side wall of the cross beam body 111; a boom plate 110 is arranged in the middle of the side wall of the front support shaft 14; the other end of the boom plate 110 is installed on the side wall of the rear support shaft 17.During operation, the installer installs both ends of a pair of swing arm plates 110 on the side walls of the front support shaft 14 and the side walls of the rear support shaft 17 respectively. Subsequently, the installer controls the swing arm support 13 to slide on the top of the active track 12. At this time, driven by the swing arm support 13, the front support shaft 14 and the swing arm plate 110 installed on the top of the swing arm support 13 will move along with the movement of the swing arm support 13. At the same time, when the swing arm plate 110 moves, the swing arm plate 110 will drive the rear support shaft 17 to move on the driven track 16. When the installer adjusts the position of the swing arm plate 110, the movement of the swing arm support 13 is stopped. At this time, the swing arm plate 110 is fixed between the front support shaft 14 and the rear support shaft 17. Subsequently, the installer installs a cross beam backing plate 19 with a suitable size on the top of the third support base 18 so that the cross beam backing plate 19 can support the cross beam body 111 from the bottom. The installer then uses the support assembly to support the cross beam body 111, and then welds the swing arm plate 110 and the cross beam body 111 together. Through the setting of the active track 12, the swing arm support 13, the front support shaft 14, the driven track 16, the rear support shaft 17 and the swing arm plate 110 in this step, the hole pitch in the X direction between the holes of the cross beam body 111 and the holes of the swing arm plate 110 can be positioned. By setting the third support base 18, the cross beam backing plate 19 and the cross beam body 111, the hole pitch in the Y direction between the holes of the cross beam body 111 and the holes of the swing arm plate 110 can be positioned, ensuring that the swing arm plate 110 and the cross beam body 111 maintain an accurate relative position during the welding process, reducing dimensional deviations caused by machining errors, assembly errors, etc. At the same time, this setting can be adjusted according to the actual size of the swing arm plate 110, enabling the same set of welding equipment to be applicable to the production of swing arm plates 110 of multiple specifications, reducing the need for equipment replacement and setting adjustment.;

[0027] Such as Figures 1 to 5As shown in the figure, a plurality of fourth support seats 2 are fixedly connected to the top side wall of the base 1; a boom seat 21 is fixedly connected to the top side wall of the fourth support seat 2; a plurality of slot holes 22 are formed in the middle of the side wall of the boom seat 21; a first clamping bolt 23 is slidably engaged with the middle of the inner side wall of the slot hole 22; a first clamping nut 24 is arranged in the middle of the side wall of the first clamping bolt 23; during operation, after adjusting the position of the boom plate 110, the installer immediately inserts the first clamping bolt 23 into the corresponding slot hole 22, so that the end of the first clamping bolt 23 clamps the side wall of the boom plate 110, and then installs the first clamping nut 24 on the side wall of the first clamping bolt 23 to fix the position of the first clamping nut 24. This step can fix the boom plate 110 during the welding process by setting the boom seat 21, slot holes 22, first clamping bolt 23 and first clamping nut 24, ensuring that all components of the boom plate 110 are in the correct relative positions before welding, reducing the decrease in structural strength caused by position deviation. At the same time, the fixed boom plate 110 can form a more stable structure after welding, improving the overall stiffness and load-bearing capacity of the boom plate 110. Moreover, this setting can change the position where the first clamping bolt 23 is inserted into the slot hole 22 according to the size of the boom plate 110, so that the first clamping bolt 23 and the first clamping nut 24 can fix boom plates 110 of different sizes, improving the flexibility of the welding equipment.

[0028] As Figure 1 , Figure 3 and Figure 5 As shown in the figure, a fixing seat 3 is fixedly connected to the top side wall of the third support seat 18; a pressing seat 31 is fixedly connected to the middle of the side wall of the fixing seat 3; a second clamping bolt 32 is slidably engaged with the middle of the side wall of the pressing seat 31; a second clamping nut 33 is arranged in the middle of the side wall of the second clamping bolt 32; during operation, after adjusting the position of the boom plate 110, the installer immediately passes the second clamping bolt 32 through the pressing seat 31 and presses the end of the second clamping bolt 32 against the top of the crossbeam body 111, so that the bottom of the crossbeam body 111 is in close contact with the crossbeam backing plate 19, and then installs the second clamping nut 33 on the side wall of the second clamping bolt 32 to fix the position of the second clamping nut 33. This step can fix the crossbeam body 111 during the welding process by setting the fixing seat 3, pressing seat 31, second clamping bolt 32 and second clamping nut 33, ensuring its position accuracy during welding and reducing welding defects caused by position deviation or movement. At the same time, the crossbeam body 111 is a key load-bearing component in the structure, and its stability directly affects the stiffness and load-bearing capacity of the entire structure. By fixing the crossbeam body 111, it can be ensured that a stable structure is formed after welding, improving the overall stability.

[0029] As Figure 1 and Figure 5As shown, the support assembly includes a crossbeam support 4; the crossbeam support 4 is fixedly connected to the top of the third support 18; a crossbeam support shaft 41 is installed in the middle of the side wall of the crossbeam support 4; the crossbeam body 111 is slidably engaged with the crossbeam support shaft 41; during operation, after the installer adjusts the position of the crossbeam body 111, the crossbeam support shaft 41 is used to support the crossbeam body 111. At this time, the crossbeam support shaft 41 is fixed on the side wall of the crossbeam support 4, and the top of the crossbeam body 111 is fixed on the side wall of the crossbeam support shaft 41. By setting the crossbeam support 4 and the crossbeam support shaft 41, this step can support the crossbeam body 111 during the butt welding process from the top, restrict its movement and deformation during welding, and reduce weld defects such as cracks, slag inclusions, and pores caused by the movement of the crossbeam body 111 during welding, thereby improving the strength and tightness of the weld. At the same time, the stable support for the crossbeam body 111 provides a basis for automated or semi-automated butt welding equipment, supports continuous and efficient welding operations, and improves production efficiency.

[0030] As Figures 1 to 4 shown, a plurality of lubricating blocks 5 are fixedly connected to the middle of the side wall of the boom support 13; the lubricating blocks 5 are slidably connected to the active track 12; during operation, when the boom support 13 slides on the top of the active track 12, the plurality of lubricating blocks 5 apply lubricant to the surface of the active track 12 during the sliding process. By setting the plurality of lubricating blocks 5, this step can reduce the frictional resistance between the boom support 13 and the active track 12, make the movement of the boom plate 110 on the active track 12 smoother, and at the same time, by applying lubricant, it can reduce the wear caused by friction between the active track 12 and the boom support 13, and extend the service life of the active track 12 and the boom support 13.

[0031] As Figure 1 , Figure 3 , Figure 4 and Figure 5 shown, a first anti-slip pad 6 is fixedly connected to the end of the first clamping bolt 23; the first anti-slip pad 6 is made of an elastic material; by setting the first anti-slip pad 6, this step can increase the frictional force between the first clamping bolt 23 and the side wall of the boom plate 110 when the end of the first clamping bolt 23 clamps the side wall of the boom plate 110, and reduce the situation where the butt welding position is inaccurate due to the sliding of the boom plate 110.

[0032] As Figures 1 to 4 shown, a second anti-slip pad 7 is fixedly connected to the end of the second clamping bolt 32; the second anti-slip pad 7 is made of an elastic material; by setting the second anti-slip pad 7, this step can increase the frictional force between the second clamping bolt 32 and the crossbeam body 111 when the second clamping bolt 32 clamps the top of the crossbeam body 111, and reduce the situation where the butt welding position is inaccurate due to the sliding of the crossbeam body 111.

[0033] Working principle: The installer installs both ends of a pair of swing arm plates 110 on the side walls of the front support shaft 14 and the rear support shaft 17 respectively. Subsequently, the installer controls the swing arm support 13 to slide on the top of the active track 12. At this time, driven by the swing arm support 13, the front support shaft 14 and the swing arm plate 110 installed on the top of the swing arm support 13 will move along with the movement of the swing arm support 13. At the same time, when the swing arm plate 110 moves, the swing arm plate 110 will drive the rear support shaft 17 to move on the driven track 16. When the installer adjusts the position of the swing arm plate 110, the movement of the swing arm support 13 is stopped. At this time, the swing arm plate 110 is fixed between the front support shaft 14 and the rear support shaft 17. Subsequently, the installer installs a crossbeam cushion plate 19 with a suitable size on the top of the third support 18 so that the crossbeam cushion plate 19 can support the crossbeam body 111 from the bottom. The installer then uses the support assembly to support the crossbeam body 111. Subsequently, the swing arm plate 110 and the crossbeam body 111 are welded together. After adjusting the position of the swing arm plate 110, the installer immediately inserts the first clamping bolt 23 into the corresponding slot 22 so that the end of the first clamping bolt 23 clamps the side wall of the swing arm plate 110. Subsequently, the first clamping nut 24 is installed on the side wall of the first clamping bolt 23 to fix the position of the first clamping nut 24. After adjusting the position of the swing arm plate 110, the installer immediately passes the second clamping bolt 32 through the pressing seat 31 and presses the end of the second clamping bolt 32 against the top of the crossbeam body 111 so that the bottom of the crossbeam body 111 is in close contact with the crossbeam cushion plate 19. Subsequently, the second clamping nut 33 is installed on the side wall of the second clamping bolt 32 to fix the position of the second clamping nut 33. After the installer adjusts the position of the crossbeam body 111, the crossbeam body 111 is supported by the crossbeam support shaft 41. At this time, the crossbeam support shaft 41 is fixed on the side wall of the crossbeam support 4, and the top of the crossbeam body 111 is fixed on the side wall of the crossbeam support shaft 41. When the swing arm support 13 slides on the top of the active track 12, multiple lubricating blocks 5 apply lubricant to the surface of the active track 12 during the sliding process. By setting the first anti-slip pad 6, when the end of the first clamping bolt 23 clamps the side wall of the swing arm plate 110, the friction between the first clamping bolt 23 and the swing arm plate 110 can be increased, reducing the situation where the welding position is inaccurate due to the sliding of the swing arm plate 110. By setting the second anti-slip pad 7, when the second clamping bolt 32 clamps the top of the crossbeam body 111, the friction between the second clamping bolt 32 and the crossbeam body 111 can be increased, reducing the situation where the welding position is inaccurate due to the sliding of the crossbeam body 111.

[0034] The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A flexible boom welding and assembling device, comprising a base (1); characterized in that: A first support base (11) is fixedly connected to the top side wall of the base (1); an active track (12) is fixedly connected to the top side wall of the first support base (11); the active tracks (12) are a pair and symmetrically arranged on the top of the first support base (11); a boom support (13) is slidably connected to the top side wall of the active track (12); a front support shaft (14) is installed on the top side wall of the boom support (13); a second support base (15) is fixedly connected to the top side wall of the base (1); a driven track (16) is fixedly connected to the top side wall of the second support base (15); the driven tracks (16) are a pair and symmetrically arranged on the top of the second support base (15); a rear support shaft (17) is slidably connected to the top side wall of the driven track (16); a third support base (18) is fixedly connected to the top side wall of the base (1); the third support base (18) is arranged between the first support base (11) and the second support base (15); a crossbeam backing plate (19) is installed on the top side wall of the third support base (18); the crossbeam backing plates (19) are a pair and symmetrically arranged on the top of the third support base (18); a crossbeam body (111) is provided on the top side wall of the pair of crossbeam backing plates (19); a support assembly is installed in the middle of the side wall of the crossbeam body (111); a boom plate (110) is provided in the middle of the side wall of the front support shaft (14); the other end of the boom plate (110) is installed on the side wall of the rear support shaft (17).

2. The flexible boom welding device according to claim 1, wherein: A plurality of fourth support bases (2) are fixedly connected to the top side wall of the base (1); a boom rest (21) is fixedly connected to the top side wall of the fourth support base (2); a plurality of slot holes (22) are formed in the middle of the side wall of the boom rest (21); a first clamping bolt (23) is slidably fitted in the middle of the inner side wall of the slot hole (22); a first clamping nut (24) is provided in the middle of the side wall of the first clamping bolt (23).

3. A flexible boom welding device according to claim 1, characterized in that: A fixing base (3) is fixedly connected to the top side wall of the third support base (18); a pressing base (31) is fixedly connected to the middle of the side wall of the fixing base (3); a second clamping bolt (32) is slidably fitted in the middle of the side wall of the pressing base (31); a second clamping nut (33) is provided in the middle of the side wall of the second clamping bolt (32).

4. A flexible boom welding device according to claim 1, characterized in that: The support assembly includes a crossbeam support (4); the crossbeam support (4) is fixedly connected to the top of the third support base (18); a crossbeam support shaft (41) is installed in the middle of the side wall of the crossbeam support (4); the crossbeam body (111) is slidably fitted with the crossbeam support shaft (41).

5. A flexible boom welding device according to claim 1, characterized in that: A plurality of lubricating blocks (5) are fixedly connected to the middle of the side wall of the boom support (13); the lubricating blocks (5) are slidably connected to the active track (12).

6. The flexible boom welding device according to claim 2, characterized in that: A first anti-slip pad (6) is fixedly connected to the end of the first clamping bolt (23); the first anti-slip pad (6) is made of an elastic material.

7. A flexible boom welding device according to claim 3, characterized in that: A second anti-slip pad (7) is fixedly connected to the end of the second clamping bolt (32); the second anti-slip pad (7) is made of an elastic material.

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