U-rib welding device

Abstract

The utility model provides a U-rib welding device, which relates to the technical field of welding and comprises a frame, a guide component and a welding component. The vehicle frame is composed of a vehicle body and at least two pairs of symmetrically-arranged moving guide wheels and suitable for moving on a bottom plate on the outer side of the U rib in the longitudinal axial direction. The guide assembly comprises at least one pair of guide wheels and first connecting mechanisms matched with the guide wheels, and the guide wheels are adjustably connected with the frame through the first connecting mechanisms and symmetrically arranged on the two sides of the vehicle body. The welding assembly is composed of a second connecting mechanism and a welding gun component, and the welding gun component is installed on one side of the vehicle body and adjustably connected with the vehicle body. When the vehicle body longitudinally moves along the U-rib bottom plate, at least one pair of guide wheels abut against the side wall of the U-rib so as to assist the vehicle body to stably move on the U-rib bottom plate in the longitudinal axial direction. The moving stability and the welding applicability of the U rib welding device can be effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, and more specifically, to a U-rib welding device. Background Technology

[0002] In bridge manufacturing, the large-scale welding of U-ribs has traditionally relied on manual labor. However, manual welding is not only inefficient but also limited by the welder's skill level, making it difficult to guarantee consistent weld quality. To improve welding efficiency and quality, some manufacturers have gradually introduced U-rib welding devices, such as robotic welding arms. These devices can achieve standardized production to a certain extent, improve production efficiency and welding consistency, and reduce defects caused by human operation.

[0003] However, with the application of U-rib welding devices in U-rib welding, new challenges have emerged. On the one hand, due to the complex working conditions or structural deviations that may exist during the welding process, U-rib welding devices may suffer from poor movement stability. On the other hand, the specifications and dimensions of U-ribs are complex and diverse, making traditional U-rib welding devices less applicable. Utility Model Content

[0004] The problem this invention addresses is how to improve the moving stability and welding applicability of the U-rib welding device.

[0005] To address the aforementioned problems, this utility model provides a U-rib welding device for U-rib welding, comprising a frame, a guide assembly, and a welding assembly.

[0006] The frame includes a vehicle body and at least two pairs of movable guide wheels. Each pair of movable guide wheels is symmetrically arranged at the bottom of the vehicle body along the central axis of the vehicle body, and is adapted to drive the vehicle body to move along the longitudinal axis of the U-rib on the outer bottom plate of the U-rib.

[0007] The guide assembly includes at least one pair of guide wheels and a first connecting mechanism that corresponds to each pair of guide wheels. The guide wheels are tunably connected to the vehicle frame through the corresponding first connecting mechanism. Two of the guide wheels in each pair are symmetrically arranged on both sides of the vehicle body and are respectively used to abut against the two outer side plates of the U-rib (1).

[0008] The welding assembly includes a second connecting mechanism and a welding torch component. The welding torch component is located on one side of the vehicle body and is adjustablely connected to the vehicle body via the second connecting mechanism.

[0009] Optionally, the first connecting mechanism includes a guide wheel connecting arm, one end of which is hinged to the guide wheel via a first threaded connector, and the other end of which is hinged to the vehicle body via a second threaded connector.

[0010] Optionally, the guide wheel includes a support rod and a wheel body, the support rod and the wheel body are fixedly connected, and one end of the guide wheel connecting arm is hinged to the support rod through the first threaded connector.

[0011] Optionally, the frame further includes an adjustable connecting mechanism, which is mounted on the vehicle body and its mounting position is adjustable. The other end of the guide wheel connecting arm is hinged to the adjustable connecting mechanism via a second threaded connector, and the guide wheel connecting arm is fixed to the vehicle body via the adjustable connecting mechanism.

[0012] Optionally, the adjustable connection mechanism is a long strip-shaped rod with a strip-shaped opening extending along its length. The long strip-shaped rod is configured to be fixed to the vehicle body by a pair of third threaded connectors, each of which passes through the strip-shaped opening. During installation, the third threaded connector can be adjusted to a predetermined position along the opening.

[0013] Optionally, the second connecting mechanism includes a first welding gun connecting seat and a second welding gun connecting seat that are hinged to each other. One end of the first welding gun connecting seat is fixedly connected to the vehicle body, the other end of the first welding gun connecting seat is adjustablely connected to the second welding gun connecting seat, and the other end of the second welding gun connecting seat is fixedly connected to the welding gun component.

[0014] Optionally, the first welding torch connector and the second welding torch connector are rotatably connected about a hinge point. The first welding torch connector and the second welding torch connector are provided with a C-shaped opening around the hinge point. The first welding torch connector and the second welding torch connector are used for fixed connection by a fourth threaded connector passing through the C-shaped opening.

[0015] Optionally, the first welding torch connector is straight, the second welding torch connector is curved, and the first welding torch connector and the second welding torch connector are fixedly connected by at least two of the fourth threaded connectors.

[0016] Optionally, the welding torch component includes a swing arm motor, a welding torch holder, and a welding torch. One end of the second connecting mechanism is fixedly connected to the swing arm motor, and the swing arm motor is configured to drive the welding torch holder and the welding torch to swing within a set arc range.

[0017] Optionally, the welding torch holder is fixed to the swing arm motor, and the welding torch holder is fixedly connected to the welding torch through an adjustable component, the adjustable component including an adjusting bolt or a tightening mechanism, for adjusting the installation position of the welding torch.

[0018] Compared to existing technologies, the advantages of this invention are as follows: the vehicle body of the U-rib welding device moves on the outer bottom plate of the U-rib; at least one pair of guide wheels in the guide assembly are connected to the vehicle body through a first connecting mechanism and are symmetrically arranged along the vertical central axis of the U-rib, respectively abutting against the side walls on both sides of the U-rib, thereby providing lateral stability and precise guidance for the movement of the U-rib welding device, thus ensuring the stable movement of the vehicle body of the U-rib welding device along the longitudinal axis of the U-rib bottom plate; moreover, the design of the guide wheels being adjustablely connected to the frame through the first connecting mechanism allows the guide assembly to adjust according to different specifications (shape and size) of the U-rib. Position adjustment ensures good contact with the U-rib sidewall, improving the applicability of the U-rib welding device. Finally, the welding assembly is adjustable to the vehicle body via a second connecting structure, allowing the welding position and angle of the welding torch component to be flexibly adjusted according to the U-rib welding requirements. This ensures the welding torch is always in a precise welding position, meeting the needs of different welding angles and working conditions, thus improving the applicability of the U-rib welding device. Furthermore, in this invention, the U-rib welding device provides guidance and support through direct contact with the U-rib sidewall, reducing reliance on additional guiding equipment and resulting in a simple, compact overall structure that is easy to operate and maintain. This invention effectively improves the movement stability and welding applicability of the U-rib welding device. Attached Figure Description

[0019] Figure 1 A front view of the structure of a U-rib welding device provided in an embodiment of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of a U-rib welding device provided in an embodiment of the present invention from another perspective.

[0021] Explanation of reference numerals in the attached drawings: 1-U-rib, 21-car body, 22-moving guide wheel, 23-adjustable connecting mechanism, 24-third threaded connector, 31-guide wheel, 311-support rod, 312-wheel body, 32-first connecting mechanism, 33-first threaded connector, 34-second threaded connector, 41-second connecting mechanism, 411-first welding torch connector, 412-second welding torch connector, 413-fourth threaded connector, 42-welding torch component, 421-swing arm motor, 422-welding torch holder, 423-welding torch. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0023] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0024] In modern bridge manufacturing, U-rib welding is a crucial step in bridge fabrication, widely used for the reinforcement and stress optimization of steel bridge structures. U-ribs typically have complex shapes and diverse dimensions, thus requiring high-precision welding operations to ensure weld quality and consistency.

[0025] Traditional U-rib welding relies primarily on manual operation, which suffers from low efficiency, inconsistent quality, and high labor intensity. To overcome these issues, many manufacturers have begun introducing U-rib welding equipment, such as robotic welding arms. Through mechanized and intelligent control, the welding process is standardized, significantly improving production efficiency and welding consistency. However, it still faces technological bottlenecks. On the one hand, during bridge construction, working conditions may change due to steel deformation, complex construction environments, and other factors, leading to deviations in the welding trajectory and reduced welding accuracy. On the other hand, the complex and diverse specifications and dimensions of U-ribs necessitate that U-rib welding equipment possess strong adaptability to handle variations in width, sidewall height, and weld position.

[0026] To solve the above problems, refer to Figure 1 and Figure 2 This utility model provides a U-rib welding device for U-rib welding, which includes a frame, a guide assembly, and a welding assembly.

[0027] The frame includes a vehicle body 21 and at least two pairs of movable guide wheels 22. Each pair of movable guide wheels 22 is symmetrically arranged at the bottom of the vehicle body 21 along the central axis of the vehicle body 21, and is adapted to drive the vehicle body 21 to move along the longitudinal axis of the U-rib 1 on the outer bottom plate of the U-rib 1.

[0028] Specifically, by symmetrically arranging the guide wheels 22, when the frame moves along the longitudinal axis on the outer bottom plate of the U-rib, the weight can be effectively distributed and the movement stability can be improved, thus preventing the vehicle body 21 from swaying and deviating.

[0029] The guide assembly includes at least one pair of guide wheels 31 and at least two first connecting mechanisms 32 that correspond one-to-one with the guide wheels 31. The guide wheels 31 are tunably connected to the vehicle frame through the corresponding first connecting mechanism 32. The two guide wheels 31 in each pair are symmetrically arranged on both sides of the vehicle body 21 and are used to abut against the two outer side plates of the U-rib 1 respectively.

[0030] The welding assembly includes a second connecting mechanism 41 and a welding torch component 42. The welding torch component 42 is located on one side of the vehicle body 21 and is tunably connected to the vehicle body 21 via the second connecting mechanism 41.

[0031] When the vehicle body 21 moves along the longitudinal axis on the bottom plate of the U-rib 1, at least two pairs of guide wheels 31 abut against the side walls on both sides of the U-rib 1 to assist the vehicle body 21 in moving along the longitudinal axis on the bottom plate of the U-rib 1.

[0032] In this embodiment, "adjustable connection" means that the position and / or angle between two interconnected structures can be adjusted, and the relative position of the two structures is fixed after adjustment.

[0033] Compared to existing technologies, the advantages of this invention are as follows: the vehicle body 21 of the U-rib welding device moves on the outer bottom plate of the U-rib 1; at least one pair of guide wheels 31 in the guide assembly are connected to the vehicle body 21 through the first connecting mechanism 32 and are symmetrically arranged along the vertical central axis of the U-rib 1, respectively abutting against the side walls on both sides of the U-rib 1, thereby providing lateral stability and precise guidance for the movement of the U-rib welding device, and thus ensuring the stable movement of the vehicle body 21 of the U-rib welding device along the longitudinal axis of the bottom plate of the U-rib 1; moreover, the design of the guide wheels 31 being adjustablely connected to the frame through the first connecting mechanism 32 allows the guide assembly to be adjusted according to the different specifications (shape and...) of the U-rib 1. The dimensions are adjusted to ensure good contact with the sidewall of U-rib 1, improving the applicability of the U-rib welding device. Finally, the welding assembly is adjustablely connected to the vehicle body 21 through a second connecting structure, allowing the welding position and angle of the welding torch component 42 to be flexibly adjusted according to the U-rib welding requirements. This ensures that the welding torch 423 is always in a precise welding position, meeting the needs of different welding angles and working conditions, thus improving the applicability of the U-rib welding device. Furthermore, in this invention, the U-rib welding device provides guidance and support through direct contact with the sidewall of U-rib 1, reducing reliance on additional guiding equipment and making the overall structure simple, compact, and easy to operate and maintain. This invention can effectively improve the movement stability and welding applicability of the U-rib welding device.

[0034] In one embodiment, the first connecting mechanism 32 includes a guide wheel connecting arm, one end of which is hinged to the guide wheel 31 via a first threaded connector 33, and the other end of which is hinged to the vehicle body 21 via a second threaded connector 34.

[0035] Specifically, the guide wheel connecting arm can be a rod-shaped component, with its two ends hinged to the guide wheel 31 and the vehicle body 21 via a first threaded connector 33 and a second threaded connector 34, respectively. The threaded connector can consist of bolts, nuts, and washers.

[0036] The first threaded connector 33 is used to connect one end of the guide wheel connecting arm to the support rod 311 of the guide wheel 31. By loosening the first threaded connector 33, the angle of the guide wheel 31 relative to the guide wheel connecting arm can be changed. Then, the first threaded connector 33 is tightened to fix the guide wheel 31 relative to the guide wheel connecting arm, thereby adjusting the optimal contact angle of the guide wheel 31 with the side wall of the U rib 1, thus ensuring the stability of the U rib welding device. The second threaded connector 34 is used to connect the other end of the guide wheel connecting arm to the vehicle body 21. By adjusting the second threaded connector 34, the position and angle of the guide wheel 31 relative to the vehicle body 21 can be changed, so that the guide wheel 31 can abut against the side wall of the U rib 1, thereby providing lateral stability and precise guidance for the movement of the U rib welding device, thus ensuring the stable movement of the vehicle body 21 of the U rib welding device along the longitudinal axis of the U rib 1 bottom plate.

[0037] On the one hand, this embodiment enables the guide wheels 31 on both sides of the U-rib 1 to clamp the U-rib 1 during the U-rib welding process, providing lateral support and guidance for the vehicle body 21, thereby effectively preventing the vehicle body 21 from deviating from the predetermined trajectory and improving welding accuracy. On the other hand, this embodiment can adapt to the width and side wall height of different specifications of U-rib 1 by adjusting the double-threaded connector of the first connection structure, enhancing the versatility of the U-rib welding device.

[0038] Furthermore, the guide wheel 31 includes a support rod 311 and a wheel body 312, the support rod 311 and the wheel body 312 are fixedly connected, and one end of the guide wheel connecting arm is hinged to the support rod 311 through the first threaded connector 33.

[0039] It should be explained that the guide wheel 31 is hinged to the guide wheel connecting arm via the first threaded connector 33, thereby allowing adjustment of the angle between the guide wheel 31 and the connecting arm. Based on the shape and inclination of the sidewall of the U-rib 1, the contact angle of the guide wheel 31 can be rationally designed to accommodate U-rib welding of different specifications, thus improving the applicability of the U-rib welding device.

[0040] In one embodiment, the frame further includes an adjustable connection mechanism 23, which is mounted on the vehicle body 21 and its mounting position is adjustable. The other end of the guide wheel connecting arm is hinged to the adjustable connection mechanism 23 via a second threaded connector 34.

[0041] Specifically, the adjustable connecting mechanism 23 is installed on the vehicle body 21 to provide adjustable space for the position and angle of the guide wheel connecting arm. In this embodiment, the coordinated use of the adjustable connecting mechanism 23 and the guide wheel connecting arm not only realizes the flexible setting of the position and angle of the guide wheel 31, but also ensures the adaptability of the welding device under complex working conditions, effectively improving the quality and efficiency of welding operations.

[0042] Furthermore, the adjustable connection mechanism 23 is a long strip-shaped rod with a strip-shaped opening extending along its length. The long strip-shaped rod is configured to be mounted on the vehicle body 21 via a pair of third threaded connectors 24. Each third threaded connector 24 passes through the opening, and during installation, the third threaded connector 24 can be adjusted to a predetermined position along the opening.

[0043] In this embodiment, the opening design allows the third threaded connector 24 to slide freely along the opening and lock. The installation position of the guide wheel connecting arm can be flexibly adjusted according to the requirements of different specifications of U-ribs 1, which enhances the applicability of the U-rib welding device.

[0044] In one embodiment, the second connecting mechanism 41 includes a first welding gun connecting seat 411 and a second welding gun connecting seat 412 that are hinged to each other. One end of the first welding gun connecting seat 411 is fixedly connected to the vehicle body 21, the other end of the first welding gun connecting seat 411 is tunably connected to the second welding gun connecting seat 412, and the other end of the second welding gun connecting seat 412 is fixedly connected to the welding gun component 42.

[0045] This embodiment enables the adjustment of the angle of the welding torch 423 through the hinged first welding torch connecting seat 411 and the second welding torch connecting seat 412, which is suitable for various U-rib welding scenarios, especially for the adjustment of the position and angle of complex welding seams involved in bridge manufacturing, and has high flexibility.

[0046] Furthermore, the first welding torch connector 411 and the second welding torch connector 412 are also fixedly connected by one or more fourth threaded connectors 413 to fix the angle after adjustment.

[0047] In one embodiment, the first welding torch connector 411 is straight, the second welding torch connector 412 is curved, and the first welding torch connector 411 and the second welding torch connector 412 are fixedly connected by at least two of the fourth threaded connectors 413.

[0048] It should be explained that the straight first welding gun connector 411 is easy to connect and fix to the vehicle body 21, and can ensure the stability between the second connecting mechanism 41 and the vehicle body 21. The curved second welding gun connector 412 can better adapt to complex welding environments. The design of at least two fourth threaded connectors 413 allows users to easily adjust the posture of the welding gun connector, thereby achieving precise control of the welding angle.

[0049] Furthermore, the first welding torch connector 411 and the second welding torch connector 412 are rotatably connected about a hinge point. The first welding torch connector 411 and / or the second welding torch connector 412 are provided with a C-shaped opening around the hinge point. The first welding torch connector 411 and the second welding torch connector 412 are used for fixed connection by a fourth threaded connector 413 passing through the C-shaped opening.

[0050] In another embodiment, the first welding torch connector 411 and the second welding torch connector 412 are provided with heads for matching the through holes of the fourth threaded connector 413. The fourth threaded connector 413 fixes the relative positions of the first welding torch connector 411 and the second welding torch connector 412 through the through holes, which can effectively increase the stability of the second connecting mechanism 41.

[0051] Preferably, the welding torch component 42 includes a swing arm motor 421, a welding torch holder 422, and a welding torch 423. One end of the second connecting mechanism 41 is fixedly connected to the swing arm motor 421. The swing arm motor 421 is configured to drive the welding torch holder 422 and the welding torch 423 to swing within a set arc range.

[0052] This embodiment improves the overall welding efficiency by designing the swing arm motor 421, the welding torch holder 422, and the welding torch 423, making the welding torch 423 process more efficient and precise.

[0053] In one embodiment, the welding torch holder 422 is fixed to the swing arm motor 421, and the welding torch holder 422 is fixedly connected to the welding torch 423 through an adjustable component. The adjustable component includes an adjusting bolt or a tightening mechanism for adjusting the installation position of the welding torch 423.

[0054] Specifically, the welding torch holder 422 is fixed to the output shaft of the swing arm motor 421 via a bracket or base to ensure the stability of the welding torch holder 422 during swinging. The adjustable component ensures precise and controllable installation of the welding torch 423. This embodiment, through its flexible adjustable mechanism design, significantly improves the welding torch 423 and its installation accuracy, thereby enhancing the efficiency of U-rib welding.

[0055] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. A U-rib welding device, characterized by The application is applied to U rib welding, and the U rib welding device comprises a frame, a guide assembly and a welding assembly; The frame comprises a vehicle body (21) and at least two pairs of moving guide wheels (22), each pair of the moving guide wheels (22) is symmetrically arranged at the bottom of the vehicle body (21) along the central axis of the vehicle body (21), and is suitable for driving the vehicle body (21) to move along the longitudinal axis of the U rib (1) on the outer side bottom plate of the U rib (1). The guide assembly comprises at least one pair of guide wheels (31) and a first connecting mechanism (32) matched with the guide wheels (31) one by one, the guide wheels (31) are adjustably connected with the frame through the corresponding first connecting mechanism (32), and two guide wheels (31) in each pair of the guide wheels (31) are symmetrically arranged on the two sides of the vehicle body (21) and are respectively used for abutting against two outer side plates of the U rib (1). The welding assembly comprises a second connecting mechanism (41) and a welding gun component (42), the welding gun component (42) is located on one side of the vehicle body (21) and is adjustably connected with the vehicle body (21) through the second connecting mechanism (41).

2. The U-rib welding apparatus of claim 1, wherein, The first connecting mechanism (32) comprises a guide wheel connecting arm, one end of the guide wheel connecting arm is hinged with the guide wheel (31) through a first threaded connecting piece (33), and the other end of the guide wheel connecting arm is hinged with the vehicle body (21) through a second threaded connecting piece (34).

3. The U-rib welding apparatus of claim 2, wherein, The guide wheel (31) comprises a supporting rod (311) and a wheel body (312), the supporting rod (311) and the wheel body (312) are fixedly connected, and one end of the guide wheel connecting arm is hinged with the supporting rod (311) through the first threaded connecting piece (33).

4. The U-rib welding apparatus of claim 2, wherein, The frame further comprises an adjustable connecting mechanism (23), the adjustable connecting mechanism (23) is installed on the vehicle body (21) and the installation position is adjustable, the other end of the guide wheel connecting arm is hinged with the adjustable connecting mechanism (23) through the second threaded connecting piece (34), and the guide wheel connecting arm is fixed on the vehicle body (21) through the adjustable connecting mechanism (23).

5. The U-rib welding device of claim 4, wherein, The adjustable connecting mechanism (23) is a long strip-shaped rod, a strip-shaped opening extending along the length direction of the long strip-shaped rod is arranged on the long strip-shaped rod, and the long strip-shaped rod is configured to be fixed on the vehicle body (21) through a pair of third threaded connecting pieces (24), each third threaded connecting piece (24) passes through the strip-shaped opening, and the third threaded connecting piece (24) can be adjusted to a predetermined position along the opening during installation.

6. The U-rib welding apparatus of claim 1, wherein, The second connecting mechanism (41) comprises a first welding gun connecting seat (411) and a second welding gun connecting seat (412) hinged with each other, one end of the first welding gun connecting seat (411) is fixedly connected with the vehicle body (21), the other end of the first welding gun connecting seat (411) is adjustably connected with the second welding gun connecting seat (412), and the other end of the second welding gun connecting seat (412) is fixedly connected with the welding gun component (42).

7. The U-rib welding device of claim 6, wherein, The first welding gun connecting seat (411) and the second welding gun connecting seat (412) are rotationally connected around a hinge point, the first welding gun connecting seat (411) and / or the second welding gun connecting seat (412) is provided with a C-shaped opening arranged around the hinge point, and the first welding gun connecting seat (411) and the second welding gun connecting seat (412) are fixedly connected through a fourth threaded connecting piece (413) penetrating through the C-shaped opening.

8. The U-rib welding apparatus of claim 7, wherein, The first welding gun connecting seat (411) is linear, the second welding gun connecting seat (412) is curved, and the first welding gun connecting seat (411) and the second welding gun connecting seat (412) are fixedly connected through at least two fourth threaded connecting pieces (413).

9. The U-rib welding apparatus of claim 1, wherein, The welding gun component (42) comprises a swing arm motor (421), a welding gun holder (422) and a welding gun (423), one end of the second connecting mechanism (41) is fixedly connected with the swing arm motor (421), and the swing arm motor (421) is configured to drive the welding gun holder (422) and the welding gun (423) to swing within a set range of arc.

10. The U-rib welding device of claim 9, wherein, The welding gun holder (422) is fixed on the swing arm motor (421), the welding gun holder (422) is fixedly connected with the welding gun (423) through an adjustable component, and the adjustable component comprises an adjusting bolt or a clamping mechanism for adjusting the mounting position of the welding gun (423).

Images