Welding system for welding track frame

Abstract

The invention belongs to the technical field of engineering machinery welding equipment, and particularly relates to a welding system for welding a track frame, the welding system comprises an inner welding seam welding device, a driving wheel welding device and an outer welding seam welding device, and all welding seams of the track frame are divided into driving wheel welding seams, inner welding seams and outer welding seams; in other words, according to the track frame welding system, the track frame is welded in a working procedure mode, and each welding device only needs to repeatedly conduct welding of the same type of welding seams, so that the welding efficiency is improved, and the welding efficiency is improved. Due to the fact that different welding postures need to be adopted for welding of different types of welding seams, the welding system does not need to carry out large-amplitude posture adjustment, and therefore the welding efficiency of the track frame is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of welding equipment for engineering machinery, and particularly relates to a welding system for welding a track frame. BACKGROUND

[0002] The track frame is widely used in engineering machinery such as a crawler crane, and each engineering machinery generally includes left and right track frames. The track frame is formed by welding a box girder main body and a driving wheel set, and the box girder main body is formed by welding a plurality of structural members. Therefore, the welding work of the track frame is large and includes a plurality of forms of welds, resulting in low welding efficiency of manual welding operation. SUMMARY

[0003] The purpose of the present application is to provide a welding system for welding a track frame, aiming to improve the welding efficiency of the track frame.

[0004] In order to achieve the above-mentioned purpose, the present application provides a welding system for welding a track frame, comprising: an inner weld welding device for welding an inner weld of a box girder main body; a driving wheel welding device for welding a weld of a driving wheel and comprising a first driving wheel clamp, the first driving wheel clamp being formed with a pressing portion for pressing a curved structure of the driving wheel; an outer weld welding device for welding an outer weld of the box girder main body and a weld between the box girder main body and the driving wheel, the outer weld device comprising a second driving wheel clamp for clamping the driving wheel.

[0005] In some embodiments, the first driving wheel clamp comprises a movable pressing assembly, the movable pressing assembly comprising: a first moving track extending in a first direction; a first lifting track extending in a second direction, the first lifting track being movably matched with the first moving track; a first pressing block as the pressing portion and movably installed on one of the first moving track and the first lifting track.

[0006] In some embodiments, the first driving wheel clamp comprises a fixed limiting assembly spaced apart from the movable pressing assembly in the first direction, the fixed limiting assembly comprising a plurality of fixed blocks spaced apart in a third direction.

[0007] In some embodiments, a first clamping block is arranged in a third direction, and the first clamping block is movable in the third direction. Wherein, the first direction, the second direction and the third direction are perpendicular to each other.

[0008] In some embodiments, the first pressing block is formed with a wedge surface capable of tangential contact with the curved structure of the driving wheel; And / or, the fixing block is formed with a limiting socket for clamping the flat plate structure of the driving wheel; And / or, the first clamping block is formed with a limiting socket for clamping the flat plate structure of the driving wheel.

[0009] In some embodiments, the driving wheel welding device further comprises: A double-rotation L-shaped positioner comprising a rotating platform for mounting the first driving wheel clamp; A driving wheel welding robot capable of welding the driving wheel according to the welding seam direction of the driving wheel.

[0010] In some embodiments, the second driving wheel clamp comprises: A second moving track extending in a first direction; A vertical mounting base movably mounted on the second moving track and provided with a second lifting track extending in a second direction; A second pressing block movably mounted on the second lifting track and capable of abutting against the flat plate structure of the driving wheel; A transverse mounting base arranged in alignment with the second pressing block in the second direction, the transverse mounting base movably mounted with second clamping blocks arranged in alignment in a third direction, the second clamping blocks capable of moving in the third direction; Wherein, the first direction, the second direction and the third direction are perpendicular to each other.

[0011] In some embodiments, the second driving wheel clamp further comprises a longitudinal mounting base fixedly mounted on the vertical mounting base, the longitudinal mounting base formed with a roller mounting base at an end portion thereof away from the vertical mounting base in the first direction, a plurality of rollers extending in the third direction mounted on the roller mounting base, and the transverse mounting base located between the roller mounting base and the vertical mounting base.

[0012] In some embodiments, the welding system for welding the track frame further comprises a reverse deformation device: A traveling tool, an axial length of the traveling tool being greater than an axial length of the box girder body; End abutting assemblies arranged in alignment on the traveling tool and respectively used for abutting the two end portions of the box girder body; A middle clamping assembly mounted on the traveling tool and used for clamping the middle portion of the box girder body; A reverse deformation assembly mounted on the traveling tool and used for applying a reverse deformation amount to the box girder body.

[0013] In some embodiments, the internal weld welding device includes a traveling fixture for clamping the end of the traveling fixture.

[0014] In some embodiments, the internal weld welding apparatus includes: The inner weld seam head and tail positioner has two accompanying tooling fixtures installed on the head and tail of the inner weld seam head and tail positioner, respectively. An internal weld welding robot is movably mounted on a gantry frame on the side of the internal weld and can perform welding according to the direction of the internal weld of the box girder body; An inner weld preheating assembly is installed on the inner weld welding robot.

[0015] In some embodiments, the external weld welding apparatus further includes: The box girder clamp is positioned at an interval from the second drive wheel clamp; The external weld seam head and tail positioner, wherein the box girder clamp and the second drive wheel clamp are respectively installed on the head and tail of the external weld seam head and tail positioner; An external weld seam welding robot is installed on the gantry frame on the external weld seam side and can perform welding according to the direction of the external weld seam of the box girder body and the direction of the weld seam between the box girder body and the drive wheel. An external weld preheating assembly is installed on the external weld welding robot.

[0016] Through the above technical solution, the welding system for welding track frames provided in this application has the following beneficial effects: The welding system of this application divides all welds of the track frame into drive wheel welds, inner welds, and outer welds, and sets up drive wheel welding devices, inner weld welding devices, and outer weld welding devices respectively to perform welding. In other words, the welding system of this application performs track frame welding in stages. Each welding device only needs to repeat the welding of the same type of weld. Since different types of welds require different welding postures, the welding system of this application does not require large-scale posture adjustments, thereby improving the welding efficiency of the track frame.

[0017] Other features and advantages of the embodiments of this application will be described in detail in the following detailed description section. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the following detailed description to explain the embodiments of this application, but do not constitute a limitation on the embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings: Figure 1 This is a schematic diagram of the drive wheel welding device according to a specific embodiment of this application; Figure 2 This is a structural schematic diagram of the internal weld seam welding device according to a specific embodiment of this application; Figure 3 This is a schematic diagram of the external weld seam welding device according to a specific embodiment of this application; Figure 4 This is a schematic diagram of the structure of the first drive wheel clamp according to a specific embodiment of this application; Figure 5 This is a schematic diagram of the anti-deformation device according to a specific embodiment of this application; Figure 6 This is a schematic diagram of the accompanying tooling fixture according to a specific embodiment of this application; Figure 7 This is a schematic diagram of the structure of the second drive wheel clamp according to a specific embodiment of this application.

[0019] Explanation of reference numerals in the attached figures 100. Drive wheel welding device; 110. Double rotary L-shaped positioner; 120. Drive wheel welding robot; 130. First drive wheel fixture; 131. First clamping block; 132. Movable column; 133. Fixing block; 134. First clamping block; 200. Internal weld welding device; 210. Internal weld head and tail positioner; 220. Internal weld welding robot; 230. Internal weld preheating assembly; 240. Accompanying tooling fixture; 250. Internal weld side gantry; 241. Positioning block; 242. Third clamping block; 243. Cylindrical top block; 300. External weld welding device; 310. Second drive wheel clamp; 320. Box girder clamp; 330. External weld head and tail positioner; 340. External weld welding robot; 350. External weld preheating assembly; 360. External weld side gantry; 311. Vertical mounting base; 312. Second clamping block; 313. Horizontal mounting base; 314. Second clamping block; 315. Longitudinal mounting base; 316. Roller mounting base; 317. Roller; 400. Anti-deformation device; 410. Accompanying tooling; 420. End clamping assembly; 430. Middle clamping assembly; 440. Anti-deformation assembly; 500. Track frame; 510. Drive wheel; 520. Box girder main body. Detailed Implementation

[0020] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0021] The terminology of the welding system for welding track frames according to this application is described below with reference to the accompanying drawings.

[0022] like Figures 1 to 3 As shown, a specific embodiment of this application provides a welding system for welding a track frame 500, including an inner weld welding device 200, a drive wheel welding device 100, and an outer weld welding device 300. The inner weld welding device 200 is used to weld the inner weld of the box girder body 520; the drive wheel welding device 100 is used to weld the weld of the drive wheel 510 and includes a first drive wheel clamp 130, on which a clamping part with a curved structure for clamping the drive wheel 510 is formed; the outer weld welding device 300 is used to weld the outer weld of the box girder body 520 and the weld between the box girder body 520 and the drive wheel 510, and the outer weld device includes a second drive wheel clamp 310 for clamping the drive wheel 510.

[0023] The track frame 500 is welded from the box girder body 520 and the drive wheel 510. Both the box girder body 520 and the drive wheel 510 are welded from multiple structural components, forming welds between adjacent components. Even with automated welding equipment, different welding postures are required when welding different types of welds, and different movement directions need to be set for different weld directions. Adjusting the welding posture and movement direction takes a lot of time, resulting in a decrease in welding efficiency. In this application, all welds in the track frame 500 welding process are divided into drive wheel welds, inner welds, and outer welds, and drive wheel welding device 100, inner weld welding device 200, and outer weld welding device 300 are respectively set up to perform welding operations accordingly, so as to reduce the number of welding posture and movement direction adjustments for each welding device, thereby improving the welding efficiency of the track frame 500.

[0024] In this application, a first drive wheel fixture 130 is provided for the structural features of the drive wheel 510 to assist in the welding of the drive wheel weld, so as to ensure the welding stability of the drive wheel weld process and thereby improve the welding quality of the drive wheel weld.

[0025] Furthermore, a second drive wheel fixture 310 is provided to assist in the welding of the outer weld seam, taking into account the structural features of the drive wheel 510, so as to ensure the stability of the welding process of the outer weld seam and thus improve the welding quality of the outer weld seam.

[0026] In a specific embodiment of this application, the welding of the drive wheel weld is performed by the drive wheel welding device 100 to complete the manufacturing of the drive wheel 510.

[0027] like Figure 1 As shown, in some embodiments, the drive wheel welding device 100 includes a double-rotor L-shaped positioner 110 and a drive wheel welding robot 120. The double-rotor L-shaped positioner 110 includes a rotary platform for mounting the first drive wheel fixture 130. The drive wheel welding robot 120 is capable of welding the drive wheel 510 according to the weld seam orientation. The coordinated operation of the double-rotor L-shaped positioner 110 and the drive wheel welding robot 120 achieves automated welding of the drive wheel weld seam, replacing manual welding and thus improving welding efficiency and quality.

[0028] Specifically, the double-rotary L-shaped positioner 110 also includes a mounting base and an L-shaped mounting component. The mounting base can move along a first direction. The vertical part of the L-shaped mounting component is pivotally connected to the mounting base to realize the rotation of the L-shaped mounting component in a plane perpendicular to the straight line extending along the first direction. The rotary platform is pivotally connected to the horizontal part of the L-shaped mounting component to realize the rotation of the rotary platform in a plane perpendicular to the straight line extending along the second direction. The rotation of the first drive wheel clamp 130 is realized by the rotation of the L-shaped mounting component in the vertical plane and the rotation of the rotary platform in the horizontal plane, thereby realizing the attitude adjustment of the drive wheel 510 so that the weld of each drive wheel is welded in the flat welding position, thereby improving welding efficiency and welding quality.

[0029] Furthermore, the double-rotating L-shaped positioner 110 and the drive wheel welding robot 120 are arranged at intervals along the first direction, and the rotating platform and the drive wheel 510 have sufficient movement space, thereby avoiding interference of the drive wheel welding robot 120 with the attitude adjustment of the drive wheel 510.

[0030] In specific embodiments of this application, the first direction, second direction, and third direction are specified for ease of description and simplification, and are not intended to 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 this application. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. Specifically, the first direction, second direction, and third direction are three mutually perpendicular directions.

[0031] like Figure 4As shown, in some embodiments, the first drive wheel clamp 130 includes a movable clamping assembly, which includes a first clamping block 131 along a first direction, a first moving track extending in a first direction, and a first lifting track extending in a second direction. The first lifting track and the first moving track are movablely engaged with each other, and the first clamping block 131 is movably mounted on one of the first moving track and the first lifting track. The first clamping block 131, which can move in the second direction, cooperates with the rotary platform to clamp the drive wheel 510 in the second direction, and the first clamping block 131, which can move in both the second and first directions, is suitable for drive wheels 510 of different sizes.

[0032] In some embodiments, the drive wheel 510 includes a curved structure and a flat structure. The flat structure of the drive wheel 510 is in contact with the rotating platform. The first clamping block 131 will contact the curved structure of the drive wheel 510. In order for the first clamping block 131 to fully clamp the drive wheel 510, a wedge-shaped surface as a clamping part is formed on the first clamping block 131.

[0033] In some embodiments, the first drive wheel clamp 130 includes a fixed limiting component spaced apart from the movable clamping component along a first direction, the fixed limiting component including a plurality of fixing blocks 133 spaced apart along a third direction.

[0034] Specifically, the movable clamping assembly also includes a movable column 132, which is movable along a first moving track, and a first lifting track is mounted on the movable column 132. The movable column 132, which is movable along a first direction, cooperates with the fixed block 133 to clamp the drive wheel 510 along the first direction, and is suitable for drive wheels 510 of different sizes.

[0035] In some embodiments, the first drive wheel clamp 130 includes a first clamping block 134 arranged at a third-party alignment interval, the first clamping block 134 being movable in the third-party direction.

[0036] Specifically, there are at least two first clamping blocks 134, which are arranged at intervals along a third direction. The first clamping blocks 134, which can move relative to or away from each other along the third direction, are used to clamp the drive wheel 510 along the third direction and are suitable for drive wheels 510 of different sizes.

[0037] The working process of the first drive wheel clamp 130 is as follows: after the drive wheel 510 is hoisted onto the rotating platform, the first clamping block 134 automatically clamps the drive wheel 510 along the third direction. Then, the movable column 132 pushes the drive wheel 510 to abut against the fixed block 133 to complete the clamping along the first direction. Finally, the first pressing block 131 on the movable column 132 moves along the second direction to press the drive wheel 510 to complete the clamping along the second direction.

[0038] In some embodiments, the fixing block 133 has a limiting slot for engaging the flat plate structure of the drive wheel 510, so that the fixing block 133 can not only fix the drive wheel 510 in the first direction, but also limit the drive wheel 510 in the second direction.

[0039] In some embodiments, the first clamping block 134 has a limiting slot for engaging the flat structure of the drive wheel 510, so that the first clamping block 134 can not only fix the drive wheel 510 in a third direction, but also limit the drive wheel 510 in a second direction.

[0040] In a specific embodiment of this application, the welding of the inner weld is carried out by the inner weld welding device 200, which completes the internal connection of all structural components of the box girder body 520. The welding of the drive wheel weld and the welding of the inner weld can be carried out simultaneously.

[0041] like Figure 5 As shown, in some embodiments, the welding system further includes an anti-deformation device 400, which includes a traveling fixture 410, an end clamping assembly 420, a middle clamping assembly 430, and an anti-deformation assembly 440. The axial length of the traveling fixture 410 is greater than the axial length of the box girder body 520. The end clamping assemblies 420 are aligned and spaced on the traveling fixture 410 and are used to clamp the two ends of the box girder body 520 respectively. The middle clamping assembly is installed on the traveling fixture 410 and is used to clamp the middle of the box girder body 520. The anti-deformation assembly 440 is installed on the traveling fixture 410 and is used to apply an anti-deformation amount to the box girder body 520.

[0042] Specifically, there are two end clamping components 420, which are arranged at intervals along the first direction on the traveling fixture 410 and can clamp the box girder body 520 placed on the traveling fixture 410 along the first direction; there can be multiple middle clamping components, which are arranged at intervals along the first direction on the traveling fixture and can clamp the box girder body 520 placed on the traveling fixture 410 along the third direction.

[0043] In reality, the structural components of the box girder body 520 include a bottom plate, a cover plate, side plates, and multiple transverse diaphragms. During the internal weld welding of the box girder body 520, the cover plate is not welded to the side plates, forming an open box structure. In this case, performing internal weld welding would cause significant deformation of the structural components. In this application, an anti-deformation component 440 is used to apply anti-deformation to the box girder body 520 placed on the accompanying tooling 410 to prevent significant deformation of the structural components during internal weld welding, thereby improving welding quality.

[0044] like Figure 2As shown, in some embodiments, the inner weld welding device 200 includes an inner weld head and tail positioner 210, an inner weld welding robot 220, an inner weld preheating assembly 230, and a traveling fixture 240. The traveling fixture 240 is used to clamp the ends of the traveling fixture 410. Two traveling fixtures 240 are respectively mounted on the head and tail of the inner weld head and tail positioner 210. The inner weld welding robot 220 is movably mounted on the inner weld side gantry 250 and can perform welding according to the inner weld direction of the box girder body 520. The inner weld preheating assembly 230 is mounted on the inner weld welding robot 220. By using the two traveling fixtures 240 to clamp the two ends of the box girder body 520 respectively, and then cooperating with the inner weld head and tail positioner 210 and the inner weld welding robot 220, the automatic welding of the outer weld is achieved, replacing manual welding, thereby improving welding efficiency and welding quality.

[0045] It should be noted that the structure and working principle of the inner weld head and tail positioner 210, the inner weld preheating component 230 and the inner weld welding robot 220 are well known to those skilled in the art and are not part of the core inventive points of this application, so they will not be described in detail here.

[0046] like Figure 6 As shown, in some embodiments, the accompanying tooling fixture 240 includes two positioning blocks 241 arranged at intervals along a third direction. Both positioning blocks 241 have wedge-shaped surfaces to support the box girder body 520 and perform preliminary positioning of the box girder body 520. The accompanying tooling fixture 240 also includes a cylindrical top block 243 located at the middle position between the two positioning blocks 241. The cylindrical top block 243 is aligned with the center line of the box girder body 520 to achieve precise positioning of the box girder body 520. The accompanying tooling fixture 240 also includes two third clamping blocks 242 respectively installed on the two positioning blocks 241. Both third clamping blocks 242 can move along a third direction to clamp the box girder body 520 along the third direction.

[0047] After completing the inner welds of the box girder body 520, the cover plate is welded to the side plates and transverse diaphragms, completing the basic assembly of the box girder body 520. After completing the welding of the drive wheel welds and the basic assembly of the box girder body 520, the drive wheel 510 is butt-welded to the box girder body 520, completing the basic assembly of the track frame 500. The end of the track frame 500 with the drive wheel 510 is the drive wheel end, and the end of the track frame 500 without the drive wheel 510 is the box girder end. After completing the basic assembly of the track frame 500, the outer welds are welded. The welding of the outer welds is performed by the outer weld welding device 300, completing the manufacturing of the track frame 500.

[0048] like Figure 3As shown, in some embodiments, the external weld welding device 300 includes a second drive wheel clamp 310, a box girder clamp 320, an external weld head and tail positioner 330, an external weld welding robot 340, and an external weld preheating assembly 350. The box girder clamp 320 and the second drive wheel clamp 310 are arranged in alignment and spaced apart. The box girder clamp 320 and the second drive wheel clamp 310 are respectively installed on the head and tail of the external weld head and tail positioner 330. The external weld welding robot 340 is installed on the external weld side gantry 360 and can perform welding according to the external weld direction of the box girder body 520 and the weld direction between the box girder body 520 and the drive wheel 510. The external weld preheating assembly 350 is installed on the external weld welding robot 340 and is used for weld preheating. The box girder clamp 320 and the second drive wheel clamp 310 respectively clamp the two ends of the track frame 500. Then, the external weld seam head and tail positioner 330 and the external weld seam welding robot 340 work together to realize the automatic welding of the external weld seam, so as to replace manual welding and improve welding efficiency and welding quality.

[0049] It should be noted that the structure and working principle of the external weld head and tail positioner 330, the external weld preheating component 350 and the external weld welding robot 340 are well known to those skilled in the art and are not part of the core inventive points of this application, so they will not be described in detail here.

[0050] like Figure 7 As shown, in some embodiments, the second drive wheel clamp 310 includes a second moving track, a vertical mounting base 311, a second clamping block 312, and a horizontal mounting base 313. The second moving track extends along a first direction. The vertical mounting base 311 is movably mounted on the second moving track and is provided with a second lifting track extending along a second direction. The second clamping block 312 is movably mounted on the second lifting track and can abut against the flat plate structure of the drive wheel 510. The horizontal mounting base 313 and the second clamping block 312 are aligned and spaced apart along the second direction. A second clamping block 314 is movably mounted on the horizontal mounting base 313 and aligned and spaced apart along a third direction. The second clamping block 314 can move along the third direction.

[0051] Specifically, the vertical mounting base 311 is pivotally connected to the external weld head and tail positioner 330. The external weld head and tail positioner 330 is movably mounted on the second moving track so that the vertical mounting base 311 can move along the first direction to cooperate with the box girder clamp 320 to clamp the track frame 500 along the first direction and can adapt to welding track frames 500 of different sizes. The second clamping block 312 can move along the second direction and cooperate with the transverse mounting base 313 to clamp the drive wheel end of the track frame 500 along the second direction. The number of second clamping blocks 314 is at least two. The two second clamping blocks 314 are arranged at intervals along the third direction and can move along the third direction to cooperate with each other to clamp the drive wheel end of the track frame 500 along the third direction.

[0052] In some embodiments, the second drive wheel clamp 310 further includes a longitudinal mounting seat 315 fixedly mounted on a vertical mounting seat 311. A roller mounting seat 316 is formed at the end of the longitudinal mounting seat 315 away from the vertical mounting seat 311 along a first direction. A plurality of rollers 317 extending along a third third direction are mounted on the roller mounting seat 316. A transverse mounting seat 313 is located between the roller mounting seat 316 and the vertical mounting seat 311.

[0053] Specifically, after the track frame 500 is hoisted to the second drive wheel clamp 310, the drive wheel end of the track frame 500 can approach the vertical mounting seat 311 along the first direction via the roller 317 until it abuts against the vertical mounting seat 311. The roller 317 reduces the friction between the track frame 500 and the transverse mounting seat 313 during the process of the track frame 500 approaching the vertical mounting seat 311 along the first direction.

[0054] The working process of the second drive wheel clamp 310 is as follows: After the track frame 500 is hoisted onto the transverse mounting seat 313, the transverse mounting seat 313 moves along the first direction until the drive wheel end of the track frame 500 abuts against the vertical mounting seat 311. Then, the second clamping block 314 automatically clamps the drive wheel end of the track frame 500 along the third direction. At the same time, the second pressing block 312 moves downward until it abuts against the drive wheel end of the track frame 500 to complete the clamping along the second direction.

[0055] The working process of the external weld welding device 300 is as follows: while the second drive wheel clamp 310 moves toward the drive wheel end of the track frame 500 and clamps it, the box girder clamp 320 moves toward the box girder end of the track frame 500 and clamps it to complete the clamping along the first direction. Then, the external weld welding is performed to complete the manufacturing of the track frame 500.

[0056] It should be noted that all structural components installed on the moving track can continue to move after reaching the preset position, so as to exert a force on the workpiece they are acting on.

[0057] It should also be noted that all the movable structural components mentioned above are driven by motors, and all motors are controlled by a control unit.

[0058] In some embodiments, the drive wheel welding robot 120 adopts a single-wire welding method to adapt to the characteristics of small batches and complex drive wheel welds; the inner weld welding robot 220 adopts a single-wire welding method to adapt to the characteristics of small batches and complex drive wheel welds, and there are two inner weld welding robots 220 to perform symmetrical welding of the inner welds, thereby reducing deformation; the outer weld welding robot 340 adopts a double-wire welding method to adapt to the characteristics of large batches and many straight lines of drive wheel welds, and there are two outer weld welding robots 340 to perform symmetrical welding of the outer welds, thereby reducing deformation.

[0059] It should be noted that single-wire welding and double-wire welding processes are well known to those skilled in the art and are not part of the core inventive points of this application, so they will not be elaborated here.

[0060] In this application, firstly, the open box girder body 520 is clamped onto the anti-deformation device 400 and hoisted to the inner weld welding device 200 for inner weld welding. After the inner weld welding is completed, the cover plate is welded to the open box girder body 520 and the anti-deformation device 400 is removed. Simultaneously, the drive wheel 510 is hoisted to the drive wheel welding device 100 for drive wheel weld welding. Then, the drive wheel 510 is butt-welded to the box girder body 520. Finally, the track frame 500 is hoisted to the outer weld welding device 300 for outer weld welding. The entire welding process is divided into drive wheel weld welding, inner weld welding, and outer weld welding, which are respectively performed by the drive wheel welding device 100, the inner weld welding device 200, and the outer weld welding device 300 to reduce the number of welding posture adjustments and movement direction adjustments for each welding device, thereby improving the welding efficiency of the track frame 500.

[0061] In the description of this application, it should be understood that 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. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0062] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0063] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0064] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A welding system for welding track frames, characterized in that, include: An internal weld welding device (200) is used to weld the internal welds of the box girder body (520); A drive wheel welding device (100) for welding the weld seam of a drive wheel (510) and including a first drive wheel clamp (130) having a clamping portion formed on the first drive wheel clamp (130) for clamping the drive wheel (510); and, An external weld welding device (300) is used to weld the external weld of the box girder body (520) and the weld between the box girder body (520) and the drive wheel (510). The external weld welding device includes a second drive wheel clamp (310) for clamping the drive wheel (510).

2. The welding system for welding track frames according to claim 1, characterized in that, The first drive wheel clamp (130) includes a movable clamping assembly, the movable clamping assembly comprising: The first moving track extends along the first direction; A first lifting track extends along a second direction, and the first lifting track moves and cooperates with the first moving track. The first clamping block (131) is movably mounted on one of the first moving track and the first lifting track, serving as the clamping part.

3. The welding system for welding track frames according to claim 2, characterized in that, The first drive wheel clamp (130) includes a fixed limiting component arranged at intervals along the first direction with respect to the movable clamping component, the fixed limiting component including a plurality of fixing blocks (133) arranged at intervals along the third direction.

4. The welding system for welding track frames according to claim 3, characterized in that, A first clamping block (134) is arranged at an alignment interval along a third direction, and the first clamping block (134) is movable along the third direction; Wherein, the first direction, the second direction, and the third direction are perpendicular to each other.

5. The welding system for welding track frames according to claim 4, characterized in that, The first clamping block (131) has a wedge-shaped surface that is tangent to the curved structure of the drive wheel (510); And / or, the fixing block (133) has a limiting slot for engaging the flat structure of the drive wheel (510); And / or, the first clamping block (134) has a limiting slot for engaging the flat structure of the drive wheel (510).

6. The welding system for welding track frames according to any one of claims 1 to 5, characterized in that, The drive wheel welding device (100) further includes: A double-rotor L-type positioner (110) includes a rotary platform for mounting the first drive wheel clamp (130); and, The drive wheel welding robot (120) is capable of welding the drive wheel (510) according to the weld seam direction of the drive wheel (510).

7. The welding system for welding track frames according to claim 1, characterized in that, The second drive wheel clamp (310) includes: The second moving track extends along the first direction; A vertical mounting base (311) is movably mounted on the second moving rail and is provided with a second lifting rail extending in the second direction; The second clamping block (312) is movably mounted on the second lifting rail and can abut against the flat plate structure of the drive wheel (510); A transverse mounting base (313) is arranged at an interval with the second clamping block (312) along the second direction. A second clamping block (314) is movably mounted on the transverse mounting base (313) and arranged at an interval along the third direction. The second clamping block (314) is movable along the third direction. Wherein, the first direction, the second direction, and the third direction are perpendicular to each other.

8. The welding system for welding track frames according to claim 7, characterized in that, The second drive wheel clamp (310) further includes a longitudinal mounting seat (315) fixedly mounted on the vertical mounting seat (311). The longitudinal mounting seat (315) has a roller mounting seat (316) formed at the end away from the vertical mounting seat (311) along the first direction. A plurality of rollers (317) extending along the third direction are mounted on the roller mounting seat (316). The transverse mounting seat (313) is located between the roller mounting seat (316) and the vertical mounting seat (311).

9. The welding system for welding track frames according to claim 1, characterized in that, The welding system for welding the track frame (500) also includes an anti-deformation device (400): Accompanying tool (410), the axial length of which is greater than the axial length of the box girder body (520); The end clamping assembly (420) is arranged at intervals on the accompanying tooling (410) and is used to clamp the two ends of the box girder body (520); A central clamping assembly is installed on the accompanying tooling (410) and used to clamp the central part of the box girder body (520); An anti-deformation component (440) is mounted on the accompanying tooling (410) and used to apply an anti-deformation amount to the box girder body (520).

10. The welding system for welding track frames according to claim 9, characterized in that, The internal weld welding device (200) includes a traveling tooling fixture (240) for clamping the end of the traveling tooling (410).

11. The welding system for welding track frames according to claim 10, characterized in that, The internal weld seam welding device (200) includes: The inner weld head and tail positioner (210) has two accompanying tooling fixtures (240) installed on the head and tail of the inner weld head and tail positioner (210) respectively. An internal weld welding robot (220) is movably mounted on an internal weld side gantry (250) and is capable of welding according to the internal weld direction of the box girder body (520); An inner weld preheating assembly (230) is mounted on the inner weld welding robot (220).

12. The welding system for welding track frames according to claim 1, characterized in that, The external weld seam welding device (300) also includes: The box girder clamp (320) is positioned at an interval with the second drive wheel clamp (310); External weld head and tail positioner (330), the box girder clamp (320) and the second drive wheel clamp (310) are respectively installed on the head and tail of the external weld head and tail positioner (330); An external weld welding robot (340) is installed on an external weld side gantry (360) and can perform welding according to the external weld direction of the box girder body (520) and the weld direction between the box girder body (520) and the drive wheel (510); An external weld preheating assembly (350) is mounted on the external weld welding robot (340).

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