A butt-welding forming auxiliary device for welded pipes

Abstract

The application provides a butt welding forming auxiliary device for welded pipes, and belongs to the technical field of welded pipe processing and manufacturing. The butt welding forming auxiliary device comprises a first carrier plate, a first bracket, clamping components and an alignment locking assembly. The first bracket is hingedly connected above the first carrier plate. The two clamping components are oppositely arranged on the first bracket. The first bracket comprises a first extender. The first extender is fixed with a first longitudinal plate at the extending end. The first longitudinal plate is provided with a first clamping plate on the side away from the first extender. The two opposite first clamping plates have a working space for clamping the welded pipe. The alignment locking assembly comprises a longitudinal alignment locking assembly arranged between the first bracket and the first carrier plate and a transverse alignment locking assembly arranged between the first clamping plate and the first longitudinal plate. The butt welding forming auxiliary device can adjust the inclination angle of the welded pipe port, can reduce the working difficulty of the workers, and can improve the working efficiency of the butt welding of the welded pipe.

Description

Technical Field

[0001] This invention belongs to the field of welded pipe processing and manufacturing technology, and more specifically, it relates to an auxiliary device for butt welding of welded pipes. Background Technology

[0002] Before pipeline laying, multiple welded pipes are usually butt-welded to form a combined pipe fitting of the required length. When butt-welding two welded pipes, auxiliary tools are usually used to ensure welding quality. Common butt-welding auxiliary tools have relatively simple structures and mostly serve to fix and support. However, in actual operation, welded pipes are subjected to external forces during storage and transportation, which often causes some welded pipes to bend and deform, resulting in a slight tilt of the butt joint of the welded pipe relative to its axis. When such welded pipes are placed on existing butt-welding auxiliary tools, the ends of the welded pipes have a certain angle of inclination with the vertical plane, making it difficult to align the two welded pipes. Summary of the Invention

[0003] The purpose of this invention is to provide an auxiliary device for butt welding of welded pipes, which aims to solve the problem of difficulty in adjusting the tilt angle of the welded pipe end.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is: to provide an auxiliary device for butt welding of welded pipes, comprising: First carrier plate; The first bracket is located above the first carrier plate and is used to support the welded pipe; The clamping components are arranged opposite each other on the first bracket. Each clamping component includes a first telescopic member connected to the first bracket. A first longitudinal plate is fixed to the telescopic end of the first telescopic member. A first clamping plate is provided on the side of the first longitudinal plate away from the first telescopic member. There is a working space for clamping the welded pipe between the two opposite first clamping plates. The alignment locking assembly includes a longitudinal alignment locking assembly disposed between the first bracket and the first carrier plate and a transverse alignment locking assembly disposed between the first clamping plate and the first longitudinal plate. The first bracket is hinged to the first carrier plate at its middle part. The first bracket can rotate vertically relative to the first carrier plate so that the tilt angle of the welded pipe port in the vertical direction is adjustable. The longitudinal alignment locking assembly is used to limit the rotation angle of the first bracket. The first clamping plate is hinged to the first longitudinal plate at its middle part. The first clamping plate can rotate horizontally relative to the first longitudinal plate so that the tilt angle of the welded pipe port in the horizontal direction is adjustable. The transverse alignment locking assembly is used to limit the rotation angle of the first clamping plate.

[0005] In one possible implementation, the alignment locking assembly includes two plug cylinders. The two plug cylinders in the longitudinal alignment locking assembly are fixedly connected to the first carrier plate and symmetrically arranged on both sides of the hinge point between the first bracket and the first carrier plate. The two plug cylinders in the transverse alignment locking assembly are fixedly connected to the first longitudinal plate and symmetrically arranged on both sides of the hinge point between the first clamping plate and the first longitudinal plate. A piston is slidably disposed inside each plug cylinder. An oil storage chamber is provided between the piston and the bottom of the plug cylinder. A connecting rod is provided on the piston. A support block is hinged to the other end of the connecting rod. The support block in the longitudinal alignment locking assembly is slidably connected to the first carrier plate. The support block in the transverse alignment locking assembly is slidably connected to the first clamping plate. The two plug cylinders in each alignment locking assembly are connected to the two oil storage chambers through an oil guide pipe, and a shut-off valve is connected in series on the oil guide pipe.

[0006] In one possible implementation, the support block is a T-shaped structural block, and both the first bracket and the first clamping plate are provided with T-shaped structural grooves adapted to the support block.

[0007] In one possible implementation, it further includes a first walking mechanism, a second walking mechanism, and a first lifting mechanism. The first walking mechanism is located on the ground and moves back and forth along the X direction. The second walking mechanism is located above the first walking mechanism and moves along the Y direction on the first walking mechanism. The first lifting mechanism is located on the second walking mechanism. The first carrier plate is fixed to the actuating end of the first lifting mechanism and is used to drive the first carrier plate to move up and down along the Z direction.

[0008] In one possible implementation, the first traveling mechanism is further provided with a third traveling mechanism, which is located on one side of the second traveling mechanism and moves along the Y direction. The third traveling mechanism is provided with a second lifting mechanism, and the actuating end of the second lifting mechanism is provided with a second bracket. The second bracket is provided with a slot for supporting the welded pipe.

[0009] In one possible implementation, the slot is a V-shaped through slot provided on the second bracket.

[0010] In one possible implementation, the end face of the first clamping plate used to clamp the welded pipe is an arc-shaped surface.

[0011] In one possible implementation, a support plate is rotatably mounted on the first bracket, the support plate being rotatably connected to the first bracket, and the support plate being used to support the welded pipe.

[0012] In one possible implementation, a mounting frame is also included, which is fixed to the ground and located on the extension of the travel path of the first traveling mechanism, and the mounting frame is used to load the welded pipes to be docked.

[0013] The beneficial effects of the auxiliary device for butt welding of welded pipes provided by this invention are as follows: Compared with the prior art, in application, after the end of the welded pipe to be welded is placed on the first bracket, the first clamping plate clamps and fixes the welded pipe through the first telescopic device. Then, the alignment locking component is opened, allowing both the first bracket and the first clamping plate to rotate freely. The operator can then adjust the tilt angle of the welded pipe end by swinging the welded pipe to align it with the end face of the welded pipe to be welded. After the welded pipe is adjusted, the alignment locking component can be locked, thus fixing the first bracket and the first clamping plate in a fixed state, restricting the movement of the welded pipe, and preventing the welded pipe from shifting during subsequent welding. The auxiliary device for butt welding of welded pipes provided by this invention can adjust the tilt angle of the welded pipe end, reducing the difficulty of operation for operators and improving the efficiency of butt welding of welded pipes. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a front view structural schematic diagram of an auxiliary device for butt welding of welded pipes provided in an embodiment of the present invention; Figure 2 This is a top view of an auxiliary device for butt welding of welded pipes provided in an embodiment of the present invention. Figure 3 This is a partial cross-sectional view of the connection structure of the alignment locking assembly provided in an embodiment of the present invention.

[0016] Explanation of reference numerals in the attached figures: 1. First carrier plate; 2. First bracket; 21. Mounting plate; 22. Bearing plate; 31. First expansion joint; 32. First longitudinal plate; 33. First clamping plate; 4. Plug cylinder; 41. Piston; 42. Connecting rod; 43. Support block; 44. T-shaped structure slide; 45. Oil storage chamber; 5. Oil guide pipe; 6. Shut-off valve; 7. First connecting block; 8. Second connecting block; 9. Second bracket; 10. First traveling mechanism; 20. Second traveling mechanism; 30. Third traveling mechanism; 40. First lifting mechanism; 50. Second lifting mechanism; 60. Fixed frame; 100. Fixed pipe; 200. Connecting pipe. Detailed Implementation

[0017] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0018] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0019] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] Please see Figures 1 to 3 The present invention will now describe an auxiliary device for butt welding of welded pipes. The auxiliary device for butt welding of welded pipes includes a first carrier plate 1, a first bracket 2, a clamping component, and an alignment locking assembly.

[0022] In this embodiment, the first bracket 2 is disposed above the first carrier plate 1 to support the welded pipe. The first bracket 2 and the first carrier plate 1 are provided with a first connecting block 7 in the middle of their opposite end faces. A first rotating shaft passes through the two first connecting blocks 7. The first connecting blocks 7 and the first rotating shaft enable the first bracket 2 and the first carrier plate 1 to form a hinge. An movable gap is also formed between the first bracket 2 and the first carrier plate 1 for the first bracket 2 to rotate. In use, the welded pipe is placed on the first bracket 2, and the first bracket 2 can rotate vertically relative to the first carrier plate 1, so that the tilt angle of the welded pipe end in the vertical direction can be adjusted.

[0023] In this embodiment, there are two clamping components, which are arranged opposite to each other on the first bracket 2. Each clamping component includes a first telescopic member 31 connected to the first bracket 2. The first telescopic member 31 can be any linear drive mechanism such as a cylinder, hydraulic cylinder, or electric telescopic rod. In specific applications, longitudinally arranged mounting plates 21 are fixed on both sides of the first bracket 2. The first telescopic members 31 are fixed to the mounting plates 21 by welding or bolting. The two first telescopic members 31 are arranged opposite to each other, and a first longitudinal plate 32 is fixed to the telescopic end of each of the two first telescopic members 31. A first clamping plate 33 is provided on the side of each first longitudinal plate 32 away from the first telescopic member 31 it is connected to. In this embodiment, the two... The opposing first clamping plates 33 provide a working space for clamping the welded pipe. A second connecting block 8 is provided at the center of the opposite end face of the first clamping plate 33 and the first longitudinal plate 32 on the same side. A second rotating shaft passes between the two second connecting blocks 8. Through the second connecting blocks 8 and the second rotating shaft, the first clamping plate 33 and the first longitudinal plate 32 are hinged together. Furthermore, an movable gap is formed between the first clamping plate 33 and the first longitudinal plate 32, allowing the first clamping plate 33 to rotate relative to the first longitudinal plate 32. In use, the two first clamping plates 33 are clamped onto the welded pipe under the action of the first telescopic device 31. The first clamping plate 33 can rotate horizontally relative to the first longitudinal plate 32, allowing the tilt angle of the welded pipe end to be adjusted in the horizontal direction. In this embodiment, to increase the contact area between the first clamping plate 33 and the welded pipe and improve the clamping effect, the end face of the first clamping plate 33 clamping the welded pipe can be set as an arc-shaped surface that fits against the outer wall of the welded pipe.

[0024] In this embodiment, the alignment locking assembly includes a longitudinal alignment locking assembly disposed between the first bracket 2 and the first carrier plate 1, and a transverse alignment locking assembly disposed between the first clamping plate 33 and the first longitudinal plate 32. The longitudinal alignment locking assembly is used to limit the rotation angle of the first bracket 2, and the transverse alignment locking assembly is used to limit the rotation angle of the first clamping plate 33. In application, when the alignment locking assembly is in the open state, both the first bracket 2 and the first clamping plate 33 can rotate freely, so that the operator can move the welding pipe to adjust the tilt angle of the welding pipe port, so that the welding pipe is aligned with the port of another welding pipe to be connected. After the tilt angle of the welding pipe port is adjusted, the alignment locking assembly is operated to enter the locked state, locking the first bracket 2 and the first clamping plate 33, thereby fixing the welding pipe and preventing the welding pipe from shifting or misaligning during welding.

[0025] In this embodiment, the alignment locking assembly includes two plug cylinders 4. The two plug cylinders 4 in the longitudinal alignment locking assembly are fixedly connected to the first carrier plate 1 by welding or bolting and are symmetrically arranged on both sides of the hinge point between the first bracket 2 and the first carrier plate 1. The two plug cylinders 4 in the transverse alignment locking assembly are fixedly connected to the first longitudinal plate 32 by welding or bolting and are symmetrically arranged on both sides of the hinge point between the first clamping plate 33 and the first longitudinal plate 32. A piston 41 is slidably arranged inside the plug cylinder 4. An oil storage chamber 45 is provided between the piston 41 and the bottom of the plug cylinder 4. A connecting rod 42 is provided on the piston 41. A support block 43 is hinged to the other end of the connecting rod 42. The support block 43 in the longitudinal alignment locking assembly is slidably connected to the first bracket 2. The support block 43 in the transverse alignment locking assembly is slidably connected to the first clamping plate 33. The two plug cylinders 4 in each alignment locking assembly are connected to the oil storage chamber 45 in the two plug cylinders 4 through an oil guide pipe 5, and a shut-off valve 6 is connected in series on the oil guide pipe 5. When the shut-off valve 6 on the oil guide pipe 5 is open, the alignment locking assembly is open, and the oil storage chambers 45 of the two plug cylinders 4 in the same alignment locking assembly are connected to each other. Hydraulic oil can flow between the two oil storage chambers 45, so that the two pistons 41 can slide in the plug cylinder 4 in a way that offsets each other. This allows the connecting rod 42 to form a soft connection with the first bracket 2 or the first clamping plate 33, which in turn allows the first bracket 2 and the first clamping plate 33 to rotate, so that the tilt angle of the welded pipe port can be adjusted. When the shut-off valve 6 on the oil guide pipe 5 is closed, the alignment locking assembly is locked, and the oil storage chambers 45 of the two plug cylinders 4 in the same alignment locking assembly are not connected to each other. The hydraulic oil loses its fluidity, and the piston 41 is difficult to move in the plug cylinder 4. This forms a hard connection between the connecting rod 42 and the first bracket 2 or the first clamping plate 33, restricting the rotation of the first bracket 2 and the first clamping plate 33, binding the welded pipe, and preventing the welded pipe from shifting or misaligning during welding.

[0026] This invention provides an auxiliary device for butt welding of welded pipes. Compared with existing technologies, in application, after the end of the welded pipe to be welded is placed on the first bracket 2, the first telescopic device 31 clamps and fixes the welded pipe with the first clamping plate 33. Then, the alignment locking component is opened, allowing both the first bracket 2 and the first clamping plate 33 to rotate freely. The operator can then adjust the tilt angle of the welded pipe end by swinging the welded pipe to align it with the end face of the welded pipe to be welded. After the welded pipe is adjusted, the alignment locking component can be locked, thus fixing both the first bracket 2 and the first clamping plate 33, restricting the movement of the welded pipe, and preventing the welded pipe from shifting during subsequent welding. The auxiliary device for butt welding of welded pipes provided by this invention can adjust the tilt angle of the welded pipe end, reducing the difficulty of operation for operators and improving the efficiency of butt welding of welded pipes.

[0027] In some embodiments, please refer to Figure 3The support block 43 used in the above-mentioned alignment locking assembly is a T-shaped structural block. Both the first bracket 2 and the first clamping plate 33 are provided with T-shaped structural grooves 44 that are adapted to the support block 43. In use, the small end of the support block 43 is hinged to the connecting rod 42, and the large end of the support block 43 is inserted into the T-shaped structural groove 44. Through the above-mentioned connection structure, the support block 43 can be prevented from separating from the T-shaped structural groove 44 during use, thereby improving the stability of the connection.

[0028] In some embodiments, please refer to Figure 2 A support plate 22 is rotatably mounted on the first bracket 2, and is rotatably connected to the first bracket 2. The support plate 22 supports the welded pipe. In specific applications, the lower end of the support plate 22 may be provided with a pin, and the first bracket 2 has an insertion hole that mates with the pin. The support plate 22 is inserted into the insertion hole of the first bracket 2 through the pin, and a bearing is fitted between the pin and the insertion hole, thereby realizing the rotatable connection between the support plate 22 and the first bracket 2. Through the above arrangement, the welded pipe is rotatably connected to the first bracket 2 by means of the support plate 22, making it easier to swing horizontally when adjusting the horizontal tilt angle of the welded pipe's port.

[0029] In some embodiments, please refer to Figures 1 to 2 The auxiliary device for butt welding of welded pipes provided by the present invention further includes a first traveling mechanism 10, a second traveling mechanism 20, and a first lifting mechanism 40. The first traveling mechanism 10 is located on the ground and moves back and forth along the X direction. In specific applications, a guide rail can be set on the ground. The first traveling mechanism 10 is an electric flatcar set on the guide rail. In this embodiment, the second traveling mechanism 20 is located above the first traveling mechanism 10 and moves along the Y direction on the first traveling mechanism 10. In specific applications, a guide rail is set on the first traveling mechanism 10 along the Y direction. The second traveling mechanism 20 is a flat plate component slidably set on the guide rail. The flat plate component can be driven by a linear drive mechanism such as an electric telescopic rod, a cylinder, a hydraulic cylinder, or a screw drive mechanism so that the flat plate component can move in the Y direction. The first lifting mechanism 40 is located on the second traveling mechanism 20. The first carrier plate 1 is fixed to the actuating end of the first lifting mechanism 40. The first lifting mechanism 40 includes, but is not limited to, using hydraulic lifting, screw lifting, etc., to drive the first carrier plate 1 to move up and down along the Z direction.

[0030] A third traveling mechanism 30 is also provided on the first traveling mechanism 10. The third traveling mechanism 30 is located on one side of the second traveling mechanism 20 and moves back and forth along the Y direction. In specific applications, the third traveling mechanism 30 and the second traveling mechanism 20 can adopt the same configuration. A second lifting mechanism 50 is provided on the third traveling mechanism 30. The actuating end of the second lifting mechanism 50 is provided with a second bracket 9. The second lifting mechanism 50 includes, but is not limited to, using hydraulic lifting, screw lifting, etc., to drive the second bracket 9 to lift. A slot for supporting the welded pipe is provided in the second bracket 9. In order to stably fix the welded pipe, the slot is set as a V-shaped through groove.

[0031] In application, the two pipes to be welded can be divided into a fixed pipe 100 and a butt joint pipe 200. When performing butt welding, the fixed pipe 100 is first placed on the fixed frame 60, and then the butt joint pipe 200 is placed on this device by the lifting device. The butt joint end of the butt joint pipe 200 is placed in the first bracket 2, and the other end is placed in the second bracket 9, so that the alignment locking component is locked. The first telescopic device 31 is operated to drive the first clamping plate 33 to clamp the butt joint pipe 200. Then, the first traveling mechanism 10 is controlled to bring the butt joint end of the butt joint pipe 200 closer to the fixed pipe 100. Then, the second traveling mechanism 20, the third traveling mechanism 30, the first lifting mechanism 40 and the second lifting mechanism 50 are controlled to align the butt joint end of the butt joint pipe 200 with the butt joint end of the fixed pipe 100 in the vertical, horizontal and vertical directions. If, at this point, the mating end of the connecting pipe 200 is found to have a certain tilt angle relative to the mating end of the fixed pipe 100, the alignment locking assembly can be opened. Then, by controlling the second lifting mechanism 50, fine adjustments are made to allow the connecting pipe 200 to rotate the first bracket 2 vertically, adjusting the tilt angle of the mating end of the connecting pipe 200 in the vertical direction. Similarly, by controlling the third traveling mechanism 30, fine adjustments are made to allow the connecting pipe 200 to rotate the first clamping plate 33 horizontally, adjusting the tilt angle of the mating end of the connecting pipe 200 in the horizontal direction. This continues until the mating end of the connecting pipe 200 is parallel and aligned with the mating end of the fixed pipe 100. The alignment locking assembly is then locked, and the first traveling mechanism 10 is operated to connect the connecting pipe 200 to the fixed pipe 100, awaiting welding.

[0032] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An auxiliary device for butt welding of welded pipes, characterized in that, include: First carrier plate (1); The first bracket (2) is located above the first carrier plate (1) and is used to support the welded pipe. The clamping components are in the form of two, which are arranged opposite to each other on the first bracket (2). Each clamping component includes a first telescopic device (31) connected to the first bracket (2). A first longitudinal plate (32) is fixed to the telescopic end of the first telescopic device (31). A first clamping plate (33) is provided on the side of the first longitudinal plate (32) away from the first telescopic device (31). There is a working space for clamping the welded pipe between the two opposite first clamping plates (33). The alignment locking assembly includes a longitudinal alignment locking assembly disposed between the first bracket (2) and the first carrier plate (1) and a transverse alignment locking assembly disposed between the first clamping plate (33) and the first longitudinal plate (32); The middle part of the first bracket (2) is hinged to the first carrier plate (1). The first bracket (2) can rotate in the vertical direction relative to the first carrier plate (1) so that the tilt angle of the welded pipe port in the vertical direction is adjustable. The longitudinal alignment locking assembly is used to limit the rotation angle of the first bracket (2). The middle part of the first clamping plate (33) is hinged to the first longitudinal plate (32). The first clamping plate (33) can rotate in the horizontal direction relative to the first longitudinal plate (32) so that the tilt angle of the welded pipe port in the horizontal direction is adjustable. The transverse alignment locking assembly is used to limit the rotation angle of the first clamping plate (33).

2. The auxiliary device for butt welding of welded pipes as described in claim 1, characterized in that, The alignment locking assembly includes two plug cylinders (4). The two plug cylinders (4) in the longitudinal alignment locking assembly are fixedly connected to the first carrier plate (1) and symmetrically arranged on both sides of the hinge point between the first bracket (2) and the first carrier plate (1). The two plug cylinders (4) in the transverse alignment locking assembly are fixedly connected to the first longitudinal plate (32) and symmetrically arranged on both sides of the hinge point between the first clamping plate (33) and the first longitudinal plate (32). A piston (41) is slidably arranged inside the plug cylinder (4). The piston (41) is connected to the bottom of the plug cylinder (4). There is an oil storage chamber (45) between them. The piston (41) is provided with a connecting rod (42). The other end of the connecting rod (42) is hinged to a support block (43). The support block (43) in the longitudinal alignment locking assembly is slidably connected to the first bracket (2). The support block (43) in the transverse alignment locking assembly is slidably connected to the first clamping plate (33). The two plug cylinders (4) in each alignment locking assembly are connected to the two oil storage chambers (45) through an oil guide pipe (5). A shut-off valve (6) is connected in series on the oil guide pipe (5).

3. The auxiliary device for butt welding of welded pipes as described in claim 2, characterized in that, The support block (43) is a T-shaped structure block, and the first bracket (2) and the first clamping plate (33) are both provided with T-shaped structure grooves (44) that are adapted to the support block (43).

4. The auxiliary device for butt welding of welded pipes as described in claim 3, characterized in that, It also includes a first walking mechanism (10), a second walking mechanism (20) and a first lifting mechanism (40). The first walking mechanism (10) is located on the ground and moves back and forth in the X direction. The second walking mechanism (20) is located above the first walking mechanism (10) and moves left and right in the Y direction on the first walking mechanism (10). The first lifting mechanism (40) is located on the second walking mechanism (20). The first carrier plate (1) is fixed to the moving end of the first lifting mechanism (40) and is used to drive the first carrier plate (1) to move up and down in the Z direction.

5. The auxiliary device for butt welding of welded pipes as described in claim 4, characterized in that, The first walking mechanism (10) is also provided with a third walking mechanism (30). The third walking mechanism (30) is located on one side of the second walking mechanism (20) and moves left and right along the Y direction. The third walking mechanism (30) is provided with a second lifting mechanism (50). The moving end of the second lifting mechanism (50) is provided with a second bracket (9). The second bracket (9) is provided with a slot for supporting the welded pipe.

6. The auxiliary device for butt welding of welded pipes as described in claim 5, characterized in that, The slot is a V-shaped through slot provided on the second bracket (9).

7. The auxiliary device for butt welding of welded pipes as described in claim 1, characterized in that, The first clamping plate (33) has an arc-shaped end face for clamping the welded pipe.

8. The auxiliary device for butt welding of welded pipes as described in claim 1, characterized in that, A support plate (22) is rotatably mounted on the first bracket (2). The support plate (22) is rotatably connected to the first bracket (2) and is used to support the welded pipe.

9. The auxiliary device for butt welding of welded pipes as described in claim 5, characterized in that, It also includes a fixing frame (60), which is fixed to the ground and located on the extension line of the walking path of the first walking mechanism (10), and the fixing frame (60) is used to load the welded pipe to be docked.

Images