Special-shaped supporting pipe welding tool

Abstract

The utility model discloses a special-shaped supporting pipe welding tool, which belongs to the field of special-shaped pipe welding devices and comprises a base, stand columns are arranged at four corners of the bottom end of the base, a mounting groove is formed in the base, two supporting blocks which are symmetrically distributed are fixedly mounted at the top end of the base, through grooves are formed in the two supporting blocks, and the through grooves are formed in the two supporting blocks. And mounting pipes are rotatably mounted in the two through grooves correspondingly, clamping assemblies are arranged in the mounting pipes correspondingly, supporting plates are fixedly mounted on the opposite sides of the two supporting blocks correspondingly, the cross sections of the two supporting plates are both in an L shape, and positioning assemblies are arranged on the transverse inner sides of the two supporting plates correspondingly. The clamping assembly is arranged to clamp and fix the special-shaped pipe, and the rotating assembly is arranged to drive the two mounting pipes to drive the special-shaped pipe to rotate, so that equipment can conveniently weld different surfaces of the special-shaped pipe, and the welding efficiency of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the field of special-shaped pipe welding devices, and more specifically, to a special-shaped support pipe welding tooling. Background Technique

[0002] Special-shaped pipes are seamless steel pipes of various special shapes made by cold drawing. Special-shaped pipes are generally distinguished according to the cross-section, and can be further divided into seamless steel pipe special-shaped pipes, aluminum alloy special-shaped pipes, and plastic special-shaped pipes according to the material. When using special-shaped pipes, they need to be welded through a welding device according to the actual situation to achieve the effect of increasing the length.

[0003] The patent with the application number 202323071851.9 discloses a special-shaped steel pipe welding device, including a workbench. On both sides of the top of the workbench, moving grooves are respectively opened. Moving blocks are slidably connected in the moving grooves. A support block is fixedly connected to the top of the moving block. A fixing ring is fixedly connected to the top of the support block. A clamping component for fixing the workpiece is arranged outside the fixing ring. An adjusting component for controlling the position of the fixing ring is arranged at the bottom of the workbench. By setting the workbench, the clamping component and the adjusting component, the utility model solves the problem that when the existing welding device is in use, although it can clamp and fix the special-shaped steel pipe, there are multiple clamping components, and when adjusting the position of a single clamping component, it is necessary to repeatedly turn the locking bolt, and the operation is relatively cumbersome, resulting in low practicability.

[0004] In view of the above related technologies, through the cooperation of the clamping component and the adjusting component, it is convenient to clamp and fix the special-shaped pipe, but the clamping component does not have a rotating function, which is not convenient for the equipment to fully weld the special-shaped pipe and reduces the welding efficiency of the equipment. Content of the Utility Model

[0005] In order to solve the above problems, the utility model provides a special-shaped support pipe welding tooling, adopting the following technical scheme:

[0006] A special-shaped support pipe welding tooling includes a base. Columns are arranged at the four corners of the bottom end of the base. An installation groove is opened in the base. Two symmetrically distributed support blocks are fixedly installed at the top end of the base. Through grooves are opened in both of the two support blocks. Installation pipes are rotatably installed in both of the two through grooves. Clamping components are arranged in the installation pipes. Support plates are fixedly installed on the opposite sides of the two support blocks. The cross-sections of the two support plates are both in the shape of "L". Positioning components are arranged on the inner sides of the two support plates in the horizontal direction. Two symmetrically distributed installation plates are fixedly installed at the bottom of the base. Pushing components are arranged at the top ends of the two installation plates. Rotating components are arranged on the side walls of the two installation pipes;

[0007] One side of the base is fixedly installed with an inverted "L"-shaped support plate. A storage groove is formed in the horizontal section of the support plate. A screw rod is rotatably installed in the storage groove. A moving block is sleeved on the side wall of the screw rod. The bottom end of the moving block penetrates through the support plate and is fixedly installed with a first telescopic rod. A connecting block is arranged at the bottom end of the first telescopic rod. A welding torch is arranged at the bottom end of the connecting block. An installation box is fixedly installed on the side of the horizontal section of the support plate away from the base. A reduction motor is arranged in the installation box. One end of the screw rod penetrates through the installation box and is fixedly connected with the end of the output shaft of the reduction motor.

[0008] By adopting the above technical solution, when the device is in use, the staff places two sections of special-shaped pipes into two installation pipes respectively. A clamping component is arranged in the installation pipes to play a role in clamping and stabilizing the special-shaped pipes. Subsequently, the same-side special-shaped pipes are positioned through the positioning component, facilitating the butt joint of the two special-shaped pipes to be located below the welding torch. When the special-shaped pipes are positioned, the special-shaped pipes are pushed to butt joint through the pushing component, and the pushing component can play a role in fixing the special-shaped pipes, which is beneficial to maintaining the stability of the special-shaped pipes during welding. When the butt joint and fixation of the special-shaped pipes are completed, the connecting block and the welding torch are driven to descend through the first telescopic rod, making the welding torch close to the special-shaped pipes, facilitating the subsequent welding of the special-shaped pipes. Moreover, the screw rod can be driven to rotate by the reduction motor, and the screw rod drives the moving block to slide in the storage groove. The moving block drives the first telescopic rod, the connecting block and the welding torch to move synchronously, facilitating the device to weld the special-shaped pipes. In addition, the two installation pipes can be driven to rotate with the same-side special-shaped pipes through the rotating component, facilitating the device to weld different surfaces of the special-shaped pipes, which is beneficial to improving the welding efficiency of the device.

[0009] Furthermore, the clamping component includes two groups of struts arranged on the inner wall of the installation pipe. Each group of struts consists of two struts and is symmetrically distributed in the same-side installation pipe. A movable groove is formed on the opposite side of each group of struts. A support rod is slidably installed in each movable groove. A spring is fixedly connected between the opposite side of each group of support rods and the inner wall of the opposite side of the same-side movable groove. Clamping blocks are fixedly installed at the opposite ends of each group of two support rods. "V"-shaped grooves are formed on the opposite sides of each group of two clamping blocks.

[0010] By adopting the above technical solution, the staff places the special-shaped pipe into the installation pipe. The special-shaped pipe enters between the two clamping blocks in the same group. The two clamping blocks can play a role in clamping and positioning the special-shaped pipe. Moreover, the "V"-shaped groove formed on the side wall of the clamping block is beneficial to maintaining the stability of the placement of the special-shaped pipe. The clamping block pushes the same-side support rod to slide in the movable groove, and the support rod pushes the same-side spring to contract. The spring gives a rebound force to the same-side support rod. Through the cooperation of the support rod and the spring, it is convenient for the device to clamp special-shaped pipes of different sizes. Moreover, rolling elements, such as balls in the prior art, can be arranged on the inner wall of the "V"-shaped groove, facilitating the movement and butt joint of the special-shaped pipes.

[0011] Furthermore, two symmetrically distributed sliding blocks are fixedly mounted on the side walls at opposite ends of the two support rods in the same group, and the inner wall of the movable groove is provided with a sliding groove matching the two sliding blocks on the same side.

[0012] By adopting the above technical solution, when the support rod slides in the movable groove, the support rod slides with the slider in the sliding groove on the same side. The cooperation between the slider and the sliding groove is conducive to maintaining the stability of the sliding of the support rod and helps to prevent the support rod from escaping from the movable groove on the same side.

[0013] Furthermore, the positioning assembly includes a second telescopic rod fixedly mounted on the transverse inner side of the support plate, and the ends of the second telescopic rod are fixedly mounted with positioning plates.

[0014] By adopting the above technical solution, the second telescopic rod drives the positioning plates of the same group to move, so that the positioning plates are moved to the center line position of the installation pipe, which is convenient for subsequent positioning of the special-shaped pipe.

[0015] Furthermore, the pushing assembly includes a first cylinder fixedly mounted on the top of the mounting plate, a connecting column fixedly mounted on the end of the piston shaft of the first cylinder, a mounting seat fixedly mounted on the top of the connecting column, a second cylinder fixedly mounted on the top of the mounting seat, and a splint rotatably mounted on the end of the piston shaft of the second cylinder.

[0016] By adopting the above technical solution, when the positioning of the two sections of special-shaped tubes is completed, the first cylinder drives the mounting seat, the second cylinder and the clamping plate on the same side to rise synchronously, and then the second cylinder drives the clamping plate on the same side to move, so that the clamping plate contacts the opposite side of the special-shaped tube on the same side, and then the two second cylinders drive the two special-shaped tubes at the same speed under the synchronous driving force, so that the joint of the two special-shaped tubes is located below the welding gun, which is convenient for subsequent welding.

[0017] Furthermore, the rotating assembly includes a driven pulley fixedly sleeved on the side walls of opposite ends of the two mounting tubes, a dual-axis motor is fixedly installed in the mounting groove, and the ends of the two output shafts of the dual-axis motor are fixedly installed with rotating columns, and the opposite ends of the two rotating columns are rotatably connected to the inner wall of the side opposite to the mounting groove, and the side walls of the two rotating columns are fixedly sleeved with a driving pulley, and a belt is provided between the two driving pulleys and the driven pulleys on the same side, and two symmetrically distributed grooves are provided at the top of the base, and the two grooves are connected to the mounting groove, and the side walls of the two mounting tubes are fixedly sleeved with two symmetrically distributed rotating rings, and the inner wall of the through groove is provided with an annular groove matching the rotating ring on the same side.

[0018] By adopting the above technical solution, when the device welds a special-shaped pipe, the rotating column is driven to rotate by the double-shaft motor, the rotating column drives the driving wheel disc on the same side to rotate, the driving wheel disc drives the driven wheel disc on the same side to rotate through the belt, the driven wheel disc drives the mounting pipe on the same side to rotate, and the mounting pipe drives the special-shaped pipe to rotate synchronously, which can play a role in driving the special-shaped pipe to rotate, facilitating the device to weld different surfaces of the special-shaped pipe, and being beneficial to improving the welding efficiency of the device. When the mounting pipe rotates in the through groove on the same side, the mounting pipe drives the rotating ring to rotate in the annular groove on the same side. Through the cooperation of the rotating ring and the annular groove, it is beneficial to maintain the stability of the rotation of the mounting pipe.

[0019] Furthermore, a connecting plate is fixedly installed on the side wall of the connecting block, an infrared distance measuring instrument is arranged at the bottom of the connecting plate, and the top end of the infrared distance measuring instrument penetrates through the connecting plate.

[0020] By adopting the above technical solution, the distance between the welding gun and the opposite side of the special-shaped pipe is detected by the infrared distance measuring instrument. By setting a constant value, when the special-shaped pipe rotates, the infrared distance measuring instrument detects in real time, and then the welding gun is driven to lift by the first telescopic rod, so that a constant distance is maintained between the welding gun and the special-shaped pipe, which can play a role in protecting the welding gun.

[0021] In summary, the present utility model has the following beneficial technical effects:

[0022] (1) In the present utility model, through the setting of the clamping assembly, the special-shaped pipe is clamped and fixed, and through the setting of the rotating assembly, the two mounting pipes are driven to drive the special-shaped pipe to rotate, which is convenient for the device to weld different surfaces of the special-shaped pipe and is beneficial to improving the welding efficiency of the device.

[0023] (2) In the present utility model, through the setting of the positioning assembly, the relative ends of the two special-shaped pipes are positioned, and then the two special-shaped pipes can be pushed to move relatively by the pushing assembly to achieve the effect of precise docking, which is convenient for the docking part of the two special-shaped pipes to be located directly below the welding gun for subsequent welding. Moreover, the pushing assembly can play a role in clamping and stabilizing the special-shaped pipe, which is beneficial to maintaining the stability of the welding of the special-shaped pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Schematic structural diagram of the present utility model;

[0025] Figure 2 For the present utility model Figure 1 Enlarged view of A in;

[0026] Figure 3 For the present utility model Figure 1 Enlarged view of B in;

[0027] Figure 4 Cross-sectional view of the present utility model;

[0028] Figure 5 is an enlarged view of C in the present utility model; Figure 4

[0029] Figure 6 is an exploded view of the rotating assembly in the present utility model.

[0030] Explanation of the reference numerals in the figure:

[0031] 1. Base; 2. Mounting plate; 3. First cylinder; 4. Connecting column; 5. Mounting seat; 6. Second cylinder; 7. Clamping plate; 8. Belt; 9. Mounting pipe; 10. Support block; 11. Support plate; 12. Mounting box; 13. Moving block; 14. First telescopic rod; 15. Pillar; 16. Support rod; 17. Clamping block; 18. Positioning plate; 19. Second telescopic rod; 20. Support plate; 21. Connecting block; 22. Welding torch; 23. Connecting plate; 24. Infrared rangefinder; 25. Reduction motor; 26. Screw; 27. Storage groove; 28. Driving wheel disc; 29. Rotating column; 30. Biaxial motor; 31. Mounting groove; 32. Rotating ring; 33. Activity groove; 34. Spring; 35. Through groove; 36. Driven wheel disc. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model; obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0033] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0034] ​In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "provided with", "sheathed / connected", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] The following will further elaborate on the present utility model in conjunction with the attached Figures 1-6 drawings.

[0036] Please refer to Figures 1-6 , a welding fixture for a special-shaped support pipe, including a base 1. Columns are provided at the four corners of the bottom end of the base 1. An installation groove 31 is opened inside the base 1. Two symmetrically distributed support blocks 10 are fixedly installed at the top end of the base 1. Through grooves 35 are opened inside both support blocks 10. Installation pipes 9 are rotatably installed inside both through grooves 35. Clamping components are provided inside the installation pipes 9. The clamping components include two groups of support columns 15 arranged on the inner wall of the installation pipe 9. There are two support columns 15 in the same group and they are symmetrically distributed inside the installation pipe 9 on the same side. Activity grooves 33 are opened on the opposite sides of the two support columns 15 in the same group. Support rods 16 are slidably installed inside the activity grooves 33. Spring 34 is fixedly connected between the opposite sides of the support rods 16 in the same group and the inner wall of the activity groove 33 on the same side. Clamping blocks 17 are fixedly installed at the opposite ends of the two support rods 16 in the same group. "V"-shaped grooves are opened on the opposite sides of the two clamping blocks 17 in the same group.

[0037] The staff places the special-shaped pipe inside the installation pipe 9. The special-shaped pipe enters between the two clamping blocks 17 in the same group. The two clamping blocks 17 can play a role in clamping and positioning the special-shaped pipe. Moreover, the "V"-shaped grooves opened on the side walls of the clamping blocks 17 are beneficial to maintaining the stability of the placement of the special-shaped pipe. The clamping blocks 17 push the support rods 16 on the same side to slide inside the activity grooves 33. The support rods 16 push the springs 34 on the same side to contract. The springs 34 give a rebounding force to the support rods 16 on the same side. Through the cooperation of the support rods 16 and the springs 34, it is convenient for the device to clamp special-shaped pipes of different sizes. Moreover, rolling elements, such as balls in the prior art, can be arranged on the inner walls of the "V"-shaped grooves, which is convenient for the movement and docking of the special-shaped pipes.

[0038] Two symmetrically distributed sliders are fixedly installed on the opposite end side walls of the two support rods 16 in the same group. Sliding grooves matching the two sliders on the same side are opened on the inner wall of the activity groove 33. When the support rods 16 slide inside the activity grooves 33, the support rods 16 drive the sliders to slide inside the sliding grooves on the same side. Through the cooperation of the sliders and the sliding grooves, it is beneficial to maintain the stability of the sliding of the support rods 16 and helps to prevent the support rods 16 from disengaging from the activity grooves 33 on the same side.

[0039] On one side of each of the two support blocks 10, a support plate 20 is fixedly installed. The cross-sections of the two support plates 20 are both in the shape of "L". Positioning components are arranged on the inner sides of the two support plates 20 in the transverse direction. The positioning component includes a second telescopic rod 19 fixedly installed on the inner side of the support plate 20 in the transverse direction. Positioning plates 18 are fixedly installed at the ends of the second telescopic rods 19. By driving the positioning plates 18 of the same group to move through the second telescopic rods 19, the positioning plates 18 are moved to the center line position of the installation pipe 9, which is convenient for subsequent positioning of the special-shaped pipe.

[0040] Two symmetrically distributed mounting plates 2 are fixedly installed at the bottom of the base 1. Pushing components are arranged at the tops of the two mounting plates 2. The pushing component includes a first cylinder 3 fixedly installed at the top of the mounting plate 2. A connecting column 4 is fixedly installed at the end of the piston rod of the first cylinder 3. A mounting seat 5 is fixedly installed at the top of the connecting column 4. A second cylinder 6 is fixedly installed at the top of the mounting seat 5. A clamping plate 7 is rotatably installed at the end of the piston rod of the second cylinder 6. After the positioning of the two sections of the special-shaped pipe is completed, the same-side mounting seat 5, the second cylinder 6, and the clamping plate 7 are driven to rise synchronously through the first cylinder 3. Subsequently, the same-side clamping plate 7 is driven to move through the second cylinder 6, so that the side of the clamping plate 7 opposite to the same-side special-shaped pipe comes into contact. Then, under the synchronous driving force of the two second cylinders 6, the two special-shaped pipes are moved at the same speed, which is convenient for the butt joint of the two special-shaped pipes to be located below the welding torch 22, and thus convenient for subsequent welding.

[0041] An inverted "L"-shaped support plate 11 is fixedly installed on one side of the base 1. A storage groove 27 is formed in the horizontal section of the support plate 11. A screw rod 26 is rotatably installed in the storage groove 27. A moving block 13 is sleeved on the side wall of the screw rod 26. The bottom end of the moving block 13 penetrates through the support plate 11 and is fixedly installed with a first telescopic rod 14. A connecting block 21 is arranged at the bottom end of the first telescopic rod 14. A welding torch 22 is arranged at the bottom end of the connecting block 21. An installation box 12 is fixedly installed on the side of the horizontal section of the support plate 11 away from the base 1. A reduction motor 25 is arranged in the installation box 12. One end of the screw rod 26 penetrates through the installation box 12 and is fixedly connected to the end of the output shaft of the reduction motor 25. After the butt joint and fixation of the special-shaped pipe are completed, the connecting block 21 and the welding torch 22 are driven to descend through the first telescopic rod 14, so that the welding torch 22 is close to the special-shaped pipe, which is convenient for subsequent welding of the special-shaped pipe. Moreover, the screw rod 26 can be driven to rotate through the reduction motor 25, and the screw rod 26 drives the moving block 13 to slide in the storage groove 27. The moving block 13 drives the first telescopic rod 14, the connecting block 21, and the welding torch 22 to move synchronously, which is convenient for the equipment to weld the special-shaped pipe. Moreover, the two installation pipes 9 can be driven to rotate with the same-side special-shaped pipe through the rotating component, which is convenient for the equipment to weld different surfaces of the special-shaped pipe and is beneficial to improving the welding efficiency of the equipment.

[0042] Rotating components are provided on the side walls of the two mounting pipes 9. The rotating components include driven wheel discs 36 fixedly sleeved on the opposite ends of the side walls of the two mounting pipes 9. A dual-axis motor 30 is fixedly installed in the mounting groove 31. Rotating columns 29 are fixedly installed at the ends of the two output shafts of the dual-axis motor 30. The opposite ends of the two rotating columns 29 are rotatably connected to the opposite inner walls of the mounting groove 31. Driving wheel discs 28 are fixedly sleeved on the side walls of the two rotating columns 29. Belts 8 are provided between the two driving wheel discs 28 and the driven wheel discs 36 on the same side. Two symmetrically distributed grooves are formed at the top end of the base 1, and both grooves communicate with the mounting groove 31. Two symmetrically distributed rotating rings 32 are fixedly sleeved on the side walls of the two mounting pipes 9. Annular grooves matching the rotating rings 32 on the same side are formed in the inner wall of the through groove 35.

[0043] When the device welds the special-shaped pipe, the dual-axis motor 30 drives the rotating column 29 to rotate. The rotating column 29 drives the driving wheel disc 28 on the same side to rotate. The driving wheel disc 28 drives the driven wheel disc 36 on the same side to rotate through the belt 8. The driven wheel disc 36 drives the mounting pipe 9 on the same side to rotate. The mounting pipe 9 drives the special-shaped pipe to rotate synchronously, which can drive the special-shaped pipe to rotate, facilitating the device to weld different surfaces of the special-shaped pipe and improving the welding efficiency of the device. When the mounting pipe 9 rotates in the through groove 35 on the same side, the mounting pipe 9 drives the rotating ring 32 to rotate in the annular groove on the same side. Through the cooperation of the rotating ring 32 and the annular groove, it is beneficial to maintain the stability of the rotation of the mounting pipe 9. A connecting plate 23 is fixedly installed on the side wall of the connecting block 21. An infrared distance measuring instrument 24 is provided at the bottom of the connecting plate 23. The top end of the infrared distance measuring instrument 24 penetrates through the connecting plate 23. The distance between the welding torch 22 and the opposite side of the special-shaped pipe is detected by the infrared distance measuring instrument 24. By setting a constant value, when the special-shaped pipe rotates, the infrared distance measuring instrument 24 detects in real time, and then the first telescopic rod 14 drives the welding torch 22 to move up and down, so that a constant distance is maintained between the welding torch 22 and the special-shaped pipe, which can protect the welding torch 22.

[0044] The implementation principle of the embodiment of the present utility model is as follows: When the device is in use, the staff place two sections of special-shaped pipes into two installation pipes 9 respectively. A clamping component is arranged in the installation pipe 9 to play a role in firmly clamping the special-shaped pipes. Subsequently, the positioning component is used to position the special-shaped pipes on the same side, facilitating the butt joint of the two special-shaped pipes to be located below the welding torch 22. When the positioning of the special-shaped pipes is completed, the pushing component is used to push the special-shaped pipes to be butted, and the pushing component can play a role in fixing the special-shaped pipes, which is beneficial to maintaining the stability of the special-shaped pipes during welding. When the butt joint and fixation of the special-shaped pipes are completed, the first telescopic rod 14 is used to drive the connection block 21 and the welding torch 22 to descend, so that the welding torch 22 approaches the special-shaped pipes, facilitating the subsequent welding of the special-shaped pipes. Moreover, the reduction motor 25 can be used to drive the screw rod 26 to rotate, and the screw rod 26 drives the moving block 13 to slide in the receiving groove 27. The moving block 13 drives the first telescopic rod 14, the connection block 21 and the welding torch 22 to move synchronously, facilitating the device to weld the special-shaped pipes. In addition, the rotation component can be used to drive the two installation pipes 9 to rotate with the special-shaped pipes on the same side, facilitating the device to weld different surfaces of the special-shaped pipes, which is beneficial to improving the welding efficiency of the device.

[0045] The above are all the preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited thereby. Therefore, all equivalent changes made according to the structure, shape and principle of the present utility model shall be covered within the protection scope of the present utility model.

Claims

1. A special-shaped support pipe welding tooling, comprising a base (1), characterized in that: Four columns are provided at the four corners of the bottom end of the base (1). An installation groove (31) is formed in the base (1). Two symmetrically distributed support blocks (10) are fixedly installed at the top end of the base (1). Through grooves (35) are formed in both of the two support blocks (10). Installation pipes (9) are rotatably installed in the two through grooves (35). Clamping assemblies are provided in the installation pipes (9). Support plates (20) are fixedly installed on the opposite sides of the two support blocks (10). The cross-sections of the two support plates (20) are both in an "L" shape. Positioning assemblies are provided on the inner sides of the two support plates (20) in the transverse direction. Two symmetrically distributed mounting plates (2) are fixedly installed at the bottom of the base (1). Pushing assemblies are provided at the top ends of the two mounting plates (2). Rotating assemblies are provided on the side walls of the two installation pipes (9). A support plate (11) in an inverted "L" shape is fixedly installed on one side of the base (1). A storage groove (27) is formed in the horizontal section of the support plate (11). A screw rod (26) is rotatably installed in the storage groove (27). A moving block (13) is sleeved on the side wall of the screw rod (26). The bottom end of the moving block (13) penetrates through the support plate (11) and is fixedly installed with a first telescopic rod (14). A connecting block (21) is provided at the bottom end of the first telescopic rod (14). A welding torch (22) is provided at the bottom end of the connecting block (21). An installation box (12) is fixedly installed on the side of the horizontal section of the support plate (11) away from the base (1). A reduction motor (25) is provided in the installation box (12). One end of the screw rod (26) penetrates through the installation box (12) and is fixedly connected to the end of the output shaft of the reduction motor (25).

2. The special-shaped support pipe welding tooling according to claim 1, characterized in that: The clamping assembly includes two groups of struts (15) arranged on the inner wall of the installation pipe (9). There are two struts (15) in the same group and they are symmetrically distributed in the installation pipe (9) on the same side. Moving grooves (33) are formed on the opposite sides of the two struts (15) in the same group. Support rods (16) are slidably installed in the moving grooves (33). Springs (34) are fixedly connected between the opposite sides of the two support rods (16) in the same group and the inner walls of the opposite sides of the moving grooves (33) on the same side. Clamping blocks (17) are fixedly installed at the opposite ends of the two support rods (16) in the same group. "V" shaped grooves are formed on the opposite sides of the two clamping blocks (17) in the same group.

3. The special-shaped support pipe welding tooling according to claim 2, characterized in that: Two symmetrically distributed sliders are fixedly installed on the side walls of the opposite ends of the two support rods (16) in the same group. Sliding grooves matching the two sliders on the same side are formed on the inner wall of the moving groove (33).

4. The special-shaped support pipe welding tooling according to claim 1, wherein: The positioning assembly includes second telescopic rods (19) fixedly installed on the inner sides of the support plates (20) in the transverse direction. Positioning plates (18) are fixedly installed at the ends of the second telescopic rods (19).

5. The special-shaped support pipe welding tooling according to claim 1, characterized in that: The pushing component includes a first air cylinder (3) fixedly installed at the top of the mounting plate (2). A connecting column (4) is fixedly installed at the end of the piston shaft of the first air cylinder (3). A mounting seat (5) is fixedly installed at the top of the connecting column (4). A second air cylinder (6) is fixedly installed at the top of the mounting seat (5). A clamping plate (7) is rotatably installed at the end of the piston shaft of the second air cylinder (6).

6. The special-shaped support pipe welding tooling according to claim 1, wherein: The rotating component includes driven wheel discs (36) fixedly sleeved on the opposite side walls of the two mounting tubes (9). A dual-shaft motor (30) is fixedly installed in the mounting groove (31). Rotating columns (29) are fixedly installed at the ends of the two output shafts of the dual-shaft motor (30). The opposite ends of the two rotating columns (29) are rotatably connected to the opposite inner walls of the mounting groove (31). Driving wheel discs (28) are fixedly sleeved on the side walls of the two rotating columns (29). Belts (8) are provided between the two driving wheel discs (28) and the driven wheel discs (36) on the same side. Two symmetrically distributed grooves are formed at the top of the base (1), and both of the two grooves communicate with the mounting groove (31). Two symmetrically distributed rotating rings (32) are fixedly sleeved on the side walls of the two mounting tubes (9). Annular grooves matching the rotating rings (32) on the same side are formed in the inner wall of the through groove (35).

7. An irregular support pipe welding tooling according to claim 1, characterized in that: A connecting plate (23) is fixedly installed on the side wall of the connecting block (21). An infrared distance measuring instrument (24) is provided at the bottom of the connecting plate (23). The top of the infrared distance measuring instrument (24) penetrates through the connecting plate (23).

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