A profile steel welding device with anti-deformation positioning mechanism

Abstract

The present application relates to the field of welding processing, in particular to a type steel welding equipment with anti-deformation positioning mechanism, comprising a transfer module and a welding module; the welding module comprises a welding mechanism and a plurality of support units, the plurality of support units are used for supporting and conveying a plurality of axially abutting H-shaped steels, two adjacent H-shaped steels abut axially and the welds are collinear during welding, the support units move when conveying the plurality of axially abutting H-shaped steels, the welding mechanism can continuously weld the welds, and the axial ends of the H-shaped steels do not need to be provided with an arc striking plate, so that the subsequent process of cutting the arc striking plate can be optimized, and the welding efficiency is improved. The transfer module is located between two adjacent welding modules and is used for conveying the welded H-shaped steels to the next welding module; the transfer module twists and breaks the connection between the two adjacent H-shaped steels, the shaking of the two adjacent H-shaped steels is minimally affected during breaking, and an external cutting device does not need to be provided, so that the process and structure are simplified.

Description

Technical Field

[0001] This invention relates to the field of welding processing, and specifically to a steel section welding equipment with an anti-deformation positioning mechanism. Background Technology

[0002] As a high-efficiency and economical structural material, structural steel is widely used in load-bearing structures in buildings, bridges, and ships. A typical H-beam is welded from an upper flange, a lower flange, and a web, and the quality of this welding directly affects the safety and service life of the overall structure. Currently, the welding production of H-beams typically involves first assembling the flanges and web into an H-shape, fixing them with spot welding, and then continuously welding the four longitudinal seams using methods such as submerged arc welding.

[0003] In actual production, to ensure the quality of arc initiation and termination of the weld and avoid defects such as arc craters and cracks, traditional processes often require the installation of arc-starting plates and arc-extinguishing plates at both ends of the weld. After welding, the arc-starting plates are then removed by flame cutting or mechanical means. This not only increases material consumption and process steps but also reduces production efficiency. Furthermore, the cutting process may cause heat-affected or mechanical damage to the base material. This is especially true for long H-beams requiring multi-segment splicing (such as extra-long columns in construction or main beams of bridges), which are often formed by butt-welding multiple standard-length H-beams end-to-end. However, existing welding equipment typically requires stopping the machine to weld each segment sequentially when continuously processing multiple H-beams, and reinstalling the arc-starting plates before each re-arrival, making true continuous operation difficult. Even if a few machines can achieve continuous multi-segment welding, the use of arc-starting plates cannot be avoided, requiring the provision of cutting allowances at the ends, increasing material waste and subsequent processing costs.

[0004] Furthermore, H-beams are prone to angular and wavy deformation during welding, especially when placed at an angle with the weld seam at the bottom for "ship-shaped welding," requiring even higher standards for workpiece positioning and stable transport. Existing welding production lines often use a single conveyor roller, lacking an effective anti-deformation positioning mechanism. This makes it difficult to ensure that the weld seams of multiple axially abutting H-beams are collinear during movement, and misalignment can easily occur at the connection points between adjacent sections, affecting the tracking accuracy and welding consistency of the weld joint. When an H-beam is welded and needs to be transferred to the next station or flipped to weld the other side, traditional transfer methods often use overhead cranes or independent conveyor trolleys. This is not only complex and time-consuming, but also requires additional power and control systems for detachment, attitude adjustment, and re-connection, leading to increased equipment costs and greater control difficulty.

[0005] Therefore, how to simplify the arc-starting plate process in the continuous welding of multi-segment H-beams, improve welding efficiency, and at the same time achieve efficient and stable separation and transfer between adjacent segments, while reducing the complexity of redundant equipment drives and controls, has become a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0006] This invention provides a steel section welding equipment with an anti-deformation positioning mechanism to solve the problems of discontinuous welding and low efficiency of existing H-beam welding.

[0007] The steel section welding equipment with an anti-deformation positioning mechanism of the present invention adopts the following technical solution: A steel section welding device with an anti-deformation positioning mechanism is used for welding the joints of H-beams. It includes a transfer module and a welding module. There are two welding modules, each used for welding two welds on the same side of the web of the H-beam. A moving track is fixed between the two welding modules. Each welding module includes a welding mechanism and multiple support units. The support units support and axially transport multiple axially abutting H-beams. The support units tilt the H-beams so that the weld is located at the lowest point between its adjacent flange and web, and the welds of adjacent H-beams are collinear. The welding mechanism is fixed in position and used for welding the welds as the H-beams move. The transfer module is located between the two adjacent welding modules. Between, it is used to transport the welded H-beams to the next welding module; the transfer module includes multiple transfer units distributed at intervals along the moving track, each transfer unit includes a support frame, a clamping frame and a power mechanism; the clamping frame is rotatably mounted on the support frame for clamping and transporting the welded H-beams, the power mechanism is used to drive the clamping frame to rotate and then move the support frame along the axial direction of the H-beams until the H-beams abut against the H-beams of the next welding module, and the angle of rotation of the clamping frame relative to the support frame is limited; at least one transfer unit has a power component on the clamping frame to drive the H-beams to move relative to the clamping frame; wherein, the rotation center of the clamping frame is at the weld joint of two adjacent H-beams.

[0008] Optionally, the clamping frame has multiple telescopic cylinders, each telescopic cylinder has a top block at its output end, and the power component is a drive wheel mounted on the top block; the multiple telescopic cylinders are divided into two groups, and the two groups are located on both sides of the profile steel, so that when extended, the profile steel is clamped by the drive wheel on the top block, and the drive wheel rotates to drive the profile steel to move relative to the clamping frame.

[0009] Optionally, the power mechanism includes a drive motor, a central gear, planetary gears, a planetary carrier, an external gear ring, a first transmission unit, and a second transmission unit. The drive motor is fixed to the support frame, the central gear is mounted on the output shaft of the drive motor, the external gear ring is coaxial with the central gear and located outside the central gear, and there are multiple planetary gears, all located between the central gear and the external gear ring, and simultaneously meshing with both the central gear and the external gear ring. The multiple planetary gears are all mounted on the planetary carrier and rotate around their own axes. The external gear ring is driven by the clamping frame through the first transmission unit, thereby driving the clamping frame to rotate when rotating. The planetary carrier is driven by the moving track through the second transmission unit, thereby causing the support frame to move along the moving track when rotating.

[0010] Optionally, the clamping frame has an arc groove around its rotation center, the arc groove contacts and slides with the support frame surface; the clamping frame is also provided with an arc-shaped rack coaxial with the arc groove; the first transmission unit includes a first gear, a second gear, a first bevel gear, a second bevel gear, a support rod, and a third gear; the support rod is parallel to the weld seam of two adjacent H-beams and is rotatably mounted on the support frame; the external gear ring axis is vertical, the first gear is coaxial with the external gear ring and connected for transmission, the second gear is rotatably mounted on the support frame and meshes with the first gear; the first bevel gear is coaxial with the second gear and fixedly connected, the second bevel gear is fixedly mounted on the support rod and meshes with the first bevel gear, and the third gear is mounted on the support rod and rotates synchronously with the support rod and meshes with the arc-shaped rack.

[0011] Optionally, multiple horizontally mounted and perpendicular to the moving track are rotatably installed on the support frame. The moving rollers and the moving track are driven by abutting wheels mounted on the moving rollers. The second transmission unit includes a first transmission wheel, a second transmission wheel, a transmission rod, a third bevel gear, and a fourth bevel gear. The fourth bevel gear is mounted on one of the moving rollers. The first transmission wheel is coaxial with the central wheel and connected to the planetary carrier. The second transmission wheel meshes with the first transmission wheel and is connected to the third bevel gear through the transmission rod. The third bevel gear meshes with the fourth bevel gear to transmit the rotation of the first transmission wheel to the fourth bevel gear, thereby causing one of the moving rollers to rotate and drive the support frame to move along the moving track.

[0012] Optionally, a stop block is slidably installed in the arc groove. The stop block is connected to one end of the arc groove by an elastic element, which causes the stop block to be in a preset position. An arc block is provided on the support frame for contacting and sliding with the surface of the arc groove. The arc block rotates 90° relative to the clamping frame from the other end of the arc groove to the preset position.

[0013] Optionally, there are multiple second gears, first bevel gears, second bevel gears, third gears, and arc-shaped racks, and the second gears, first bevel gears, and second bevel gears correspond one-to-one, and the third gear and arc-shaped rack correspond one-to-one.

[0014] Optionally, the welding mechanism includes a truss and a welding head, the truss being fixed to the ground, and the welding head being installed on the truss and welding the H-beams on the support unit from top to bottom.

[0015] Optionally, the truss is also equipped with a brush, which is located above the weld of the H-beam for cleaning the weld.

[0016] Optionally, the support unit has an inclined support surface and a support plate. The support plate is used to support the flanges of the H-beam, and the support plate is provided with a power wheel for driving the H-beam to move. The support surface is perpendicular to the support plate and is used to support one end face of the two flanges of the H-beam.

[0017] The beneficial effects of the present invention are: When the steel section welding equipment of the present invention with anti-deformation positioning mechanism is welding, two adjacent H-beams are axially abutted and the weld seam is collinear. When the support unit is conveying multiple axially abutting H-beams, the welding mechanism can weld the weld seam without stopping. Moreover, there is no need to set arc-starting plates at both ends of the H-beams, which can optimize the subsequent process of cutting arc-starting plates and improve welding efficiency.

[0018] Furthermore, the clamping frame causes the H-beams it holds to rotate around the weld joint of two adjacent H-beams. That is, the two adjacent H-beams twist and break around their joint. When they break, the vibration of the two adjacent H-beams is minimized, and no external cutting device is required, which simplifies the process and structure.

[0019] Furthermore, when transferring H-beams, the transfer module only needs to limit the rotation angle of the clamping frame, the moving position of the support frame, and the rotation time of the center wheel to ensure that the transfer module can complete the detachment, flipping, and movement of the H-beams. Moreover, the entire transfer process only requires one power output, reducing control complexity and energy consumption.

[0020] Furthermore, the elastic element can buffer the movement of the arc block and increase its rotation angle within the arc groove, ensuring that the connection between two adjacent H-beams is broken. When the drive motor stops rotating, the arc block will return to its preset position under the push of the elastic element. This design eliminates the need for large rotations each time the clamping frame rotates; the slider is only triggered to press against the elastic element when two adjacent H-beams are difficult to break, reducing the ineffective rotation stroke of the clamping frame and improving transfer efficiency. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, 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.

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the steel welding equipment with an anti-deformation positioning mechanism of the present invention; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 This is a partial structural schematic diagram of an embodiment of the steel welding equipment with an anti-deformation positioning mechanism of the present invention; Figure 4 for Figure 3 Enlarged view of point B in the middle; Figure 5 This is a partial rear view of an embodiment of the steel section welding equipment with an anti-deformation positioning mechanism according to the present invention; Figure 6 for Figure 5 Enlarged view of point C in the middle; Figure 7 for Figure 5 Schematic diagram of cross section in the DD direction; Figure 8 for Figure 7 Enlarged view of point E in the middle; Figure 9 This is a schematic diagram showing the state of two adjacent H-beams after torsion in an embodiment of the steel welding equipment with anti-deformation positioning mechanism of the present invention; Figure 10 This is a schematic diagram of the transfer unit in an embodiment of the steel welding equipment with anti-deformation positioning mechanism of the present invention; Figure 11 for Figure 10 Enlarged schematic diagram at point F in the middle.

[0023] In the diagram: 100, H-beam; 200, welding module; 210, welding head; 220, support unit; 300, transfer module; 310, support frame; 311, moving roller; 312, traveling wheel; 313, arc block; 320, clamping frame; 321, arc groove; 322, arc rack; 323, stop block; 324, elastic element; 325, telescopic cylinder; 326, top block; 330, power mechanism; 331, drive motor; 332, middle... 333. Heart wheel; 334. Planetary gear; 335. Planetary carrier; 351. External gear ring; 352. First gear; 353. First bevel gear; 354. Second bevel gear; 355. Support rod; 356. Third gear; 361. First transmission wheel; 362. Second transmission wheel; 363. Transmission rod; 364. Third bevel gear; 365. Fourth bevel gear; 400. Moving track; 500. Spot welding chamber; 600. Feeding mechanism. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] An embodiment of the steel section welding equipment with an anti-deformation positioning mechanism according to the present invention is used for welding the splice of H-beams 100, such as... Figures 1 to 11 As shown, it includes a transfer module 300 and a welding module 200.

[0026] There are two welding modules 200, each used for welding two welds on the same side of the web of the H-beam 100; a moving track 400 is fixed between two adjacent welding modules 200. Preferably, the moving track 400 is straight and has limiters at both ends.

[0027] The welding module 200 includes a welding mechanism and multiple support units 220. The support units 220 support and axially transport multiple axially abutting H-beams 100. The support units 220 tilt the H-beams 100 so that the weld is located at the lowest point between its adjacent flanges and webs, and the welds of adjacent H-beams 100 are collinear. The welding mechanism is fixed in position and is used to weld the seams as the H-beams 100 move.

[0028] The transfer module 300 is located between two adjacent welding modules 200 and is used to transfer the welded H-beams 100 to the next welding module 200. The transfer module 300 includes multiple transfer units spaced apart along the moving track 400. Each transfer unit includes a support frame 310, a clamping frame 320, and a power mechanism 330. The clamping frame 320 is rotatably mounted on the support frame 310 and is used to clamp and transport the welded H-beams 100. The power mechanism 330 is used to drive the clamping frame 320 to rotate, thereby moving the support frame 310 along the axial direction of the H-beams 100 until the H-beams 100 abuts against the H-beams 100 of the next welding module 200. The angle of rotation of the clamping frame 320 relative to the support frame 310 is limited. At least one transfer unit's clamping frame 320 is provided with a power component that drives the H-beams 100 to move relative to the clamping frame 320. The rotation center of the clamping frame 320 is at the weld joint of two adjacent H-beams 100.

[0029] The steel section welding equipment of the present invention with an anti-deformation positioning mechanism further includes a spot welding chamber 500 and a feeding mechanism 600. Before spot welding, the flanges and webs of the H-beam 100 are spliced ​​into an H-shape and then fed into the spot welding chamber 500. The welding device in the spot welding chamber 500 performs spot welding on the weld seam, thus initially fixing the flanges and webs of the H-beam 100, facilitating subsequent full welding. After spot welding, the H-beam 100 is clamped by the feeding mechanism 600 and fed in an inclined state to the support unit 220 of the welding module 200. By adjusting the feeding speed of the feeding mechanism 600, the spot-welded H-beam 100 is continuously welded to the welding module 200, and sequentially abuts against the support unit 220 of the welding module 200. Both the spot welding chamber 500 and the feeding mechanism 600 are existing technologies, and their specific structures and working principles will not be elaborated upon.

[0030] Since two adjacent H-beams 100 are axially abutting and their weld seams are collinear, the welding mechanism can weld the seams without stopping when the support unit 220 is transporting multiple axially abutting H-beams 100. Furthermore, no arc-starting plates are needed at either end of the H-beams 100, optimizing the subsequent arc-starting plate cutting process and improving welding efficiency. After the transfer module 300 receives an H-beam 100 welded by the first welding module 200, its power mechanism 330 first drives the clamping frame 320 to rotate the H-beam 100, breaking the weld seam connection between two adjacent H-beams 100. Then, it drives the support frame 310 to move and deliver the rotated H-beam 100 to dock with the H-beam 100 on the next welding module 200. The ends of the H-beams 100 on the next welding module 200 also do not require arc-starting plates for continuous welding.

[0031] Furthermore, the clamping frame 320 causes the H-beam 100 it holds to rotate around the weld joint of two adjacent H-beams 100, that is, the two adjacent H-beams 100 are twisted and broken around their joint. When they are broken, the vibration of the two adjacent H-beams 100 is minimized, and no external cutting device is required, which simplifies the process and structure.

[0032] In this embodiment, the clamping frame 320 has multiple telescopic cylinders 325, and each telescopic cylinder 325 has a top block 326 at its output end. The power component is a drive wheel mounted on the top block 326. The multiple telescopic cylinders 325 are divided into two groups, and the two groups are located on both sides of the H-beam 100, so that when extended, the H-beam 100 is clamped by the drive wheel on the top block 326. The rotation of the drive wheel causes the H-beam 100 to move relative to the clamping frame 320. Among them, each transfer unit has at least two drive wheels on the clamping frame 320 corresponding to one side of the H-beam 100. Each drive wheel is driven to rotate by a motor, or multiple drive wheels on the same side of the H-beam 100 are engaged with the same transmission belt for transmission. This part of the structure is prior art and is not shown in detail in the figure. The extension and retraction of the telescopic cylinder 325 can be controlled by a program. After the welded H-beam 100 moves to the rotating unit, it extends to make the drive wheel abut against and clamp the H-beam 100 and drive the H-beam 100 to move. The moving speed is consistent with the speed at which the support unit 220 of the welding module 200 conveys the H-beam 100.

[0033] In this embodiment, the power mechanism 330 includes a drive motor 331, a central gear 332, planetary gears 333, a planetary carrier 334, an external gear ring 335, a first transmission unit, and a second transmission unit. The drive motor 331 is fixed to the support frame 310. The central gear 332 is mounted on the output shaft of the drive motor 331. The external gear ring 335 is coaxial with the central gear 332 and located outside the central gear 332. There are multiple planetary gears 333, all located between the central gear 332 and the external gear ring 335, and simultaneously meshing with both the central gear 332 and the external gear ring 335. The multiple planetary gears 333 are all mounted on the planetary carrier 334 and rotate around their own axes. The external gear ring 335 is driven by the clamping frame 320 through the first transmission unit, thereby driving the clamping frame 320 to rotate when rotating. The planetary carrier 334 is driven by the moving track 400 through the second transmission unit, thereby causing the support frame 310 to move along the moving track 400 when rotating. After the welded H-beam 100 has completely moved onto the transfer module 300 and its weld seam connection with the adjacent H-beam 100 is completely disengaged from the support unit 220 of the previous welding module 200, the drive motor 331 starts, driving the center wheel 332 to rotate. Since the two adjacent H-beams 100 are not disconnected at this time, the movement of the support frame 310 is hindered, the planetary carrier 334 is restricted from rotating, and the external gear ring 335 rotates under the transmission of the planetary gear 333's rotation. This, in turn, drives the clamping frame 320 to rotate through the first transmission unit, causing the welded H-beam 100 to twist and disengage from the adjacent H-beam 100. The entire twisting process is relatively fast, and the clamping frame 320 rotates. After a limited angle, the support frame 310 restricts rotation, thus restricting the rotation of the external gear ring 335. Simultaneously, the two H-beams 100 disconnect, allowing the support frame 310 to move freely. Multiple planetary gears 333, driven by the central gear 332, rotate and revolve around the central gear 332, thereby driving the planetary carrier 334 to rotate. The planetary carrier 334, through the second transmission unit, drives the support frame 310 to move along the moving track 400. By configuring the speed of the drive motor 331 and the transmission ratio of each component, when the support frame 310 moves to one end of the moving track 400, the H-beams 100 on it should just be in contact with the H-beams 100 on the next welding module 200. Normally, due to the inertia of the clamping frame 320's rotation, the support frame 310 will only be triggered to move after the clamping frame 320 has rotated to its position. If the H-beam 100 disconnects from the previous H-beam 100 before the clamping frame 320 rotates, the support frame 310 can move. When the center wheel 332 rotates, it either drives the clamping frame 320 to continue rotating or drives the support frame 310 to move. If the support frame 310 moves to the end of the moving track 400 and is restricted from moving by the moving track 400, the center wheel 332 continues to rotate so that the clamping frame 320 rotates into place.In summary, by simply limiting the rotation angle of the clamping frame 320, the moving position of the support frame 310, and the rotation time of the center wheel 332, the transfer module 300 can be guaranteed to complete the detachment, flipping, and movement of the H-beam 100. Moreover, the entire transfer process requires only one power output, reducing control complexity and energy consumption.

[0034] In this embodiment, the clamping frame 320 has an arc groove 321 around its rotation center, which contacts and slides with the support frame 310. The clamping frame 320 also has an arc-shaped rack 322 coaxial with the arc groove 321. The first transmission unit includes a first gear 351, a second gear 352, a first bevel gear 353, a second bevel gear 354, a support rod 355, and a third gear 356. The support rod 355 is parallel to and rotatably mounted on the support frame 310 with the weld seams of two adjacent H-beams 100, supporting... The rod 355 and the arc groove 321 are not coaxial; the axis of the external gear ring 335 is vertical; the first gear 351 is coaxial with the external gear ring 335 and is connected for transmission; the second gear 352 is rotatably mounted on the support frame 310 and meshes with the first gear 351; the first bevel gear 353 is coaxial with the second gear 352 and is fixedly connected; the second bevel gear 354 is fixedly mounted on the support rod 355 and meshes with the first bevel gear 353; the third gear 356 is mounted on the support rod 355 and rotates synchronously with the support rod 355, and meshes with the arc rack 322. When the external gear ring 335 rotates, it drives the arc-shaped rack 322 to rotate through the first gear 351, the second gear 352, the first bevel gear 353, the second bevel gear 354, the support rod 355, and the third gear 356, thereby causing the clamping frame 320 to rotate around the axis of the arc groove 321. When the external gear ring 335 stops rotating, the support frame 310 supports the clamping frame 320 by contacting and engaging with the surface of the arc groove 321, and the third gear 356 stops rotating, restricting the rotation of the clamping frame 320.

[0035] In this embodiment, a plurality of horizontal and perpendicular moving rollers 311 are rotatably mounted on the support frame 310. The moving rollers 311 and the moving track 400 are driven by abutting and transmission through the traveling wheels 312 mounted on the moving rollers 311. Specifically, the traveling wheels 312 can be gears or friction wheels, which mesh with or are driven by friction with the moving track 400. The second transmission unit includes a first transmission wheel 361, a second transmission wheel 362, a transmission rod 363, a third bevel gear 364, and a fourth bevel gear 365. The fourth bevel gear 365 is mounted on one of the moving rollers 311. The first transmission wheel 361 is coaxial with the central wheel 332 and connected to the planetary carrier 334. The second transmission wheel 362 meshes with the first transmission wheel 361 and is connected to the third bevel gear 364 via the transmission rod 363. The third bevel gear 364 meshes with the fourth bevel gear 365 to transmit the rotation of the first transmission wheel 361 to the fourth bevel gear 365, thereby causing one of the moving rollers 311 to rotate and drive the support frame 310 to move along the moving track 400. The support frames 310 of multiple transfer units can be connected to achieve synchronous movement.

[0036] In this embodiment, a stop block 323 is slidably installed in the arc groove 321. The stop block 323 is connected to one end of the arc groove 321 through an elastic element 324, which causes the stop block 323 to be in a preset position. The support frame 310 is provided with an arc block 313 for contacting and sliding with the surface of the arc groove 321. The arc block 313 rotates 90° relative to the clamping frame 320 from the other end of the arc groove 321 to the preset position. The elastic element 324 can buffer the movement of the arc block 313 and increase the rotation angle of the arc block 313 in the arc groove 321, ensuring that the connection between two adjacent H-beams 100 is broken. When the drive motor 331 stops rotating, the arc block 313 will return to the preset position under the push of the elastic element 324. Specifically, if the clamping frame 320 rotates until the arc block 313 abuts against the stop block 323 but the two H-beams 100 are not completely separated, the clamping frame 320 can overcome the elastic force of the elastic element 324 and continue to rotate until the two H-beams 100 are separated. After that, the support frame 310 moves, and the arc block 313 returns to the preset position under the rebound action of the elastic element 324. With this setting, when the clamping frame 320 rotates, it does not need to rotate a large angle each time. The arc block 313 is only triggered to squeeze the elastic element 324 when the two adjacent H-beams 100 are difficult to separate, reducing the ineffective rotation stroke of the clamping frame 320 and improving the transfer efficiency. In some other embodiments, the clamping frame 320 and the rotation and the movement of the support frame 310 can also be driven by separate power elements. However, in order to ensure that the two adjacent H-beams 100 are separated, the clamping frame 320 needs to rotate a sufficiently large angle each time. When the two adjacent H-beams 100 can be separated in advance, it will increase the ineffective stroke and affect the transfer efficiency.

[0037] In this embodiment, there are multiple second gears 352, first bevel gears 353, second bevel gears 354, third gears 356, and arc-shaped racks 322. The second gears 352, first bevel gears 353, and second bevel gears 354 correspond one-to-one, and the third gears 356 and arc-shaped racks 322 correspond one-to-one.

[0038] In this embodiment, the welding mechanism includes a truss 211 and a welding head 210. The truss 211 is fixed to the ground, and the welding head 210 is installed on the truss 211 and welds the H-beam 100 on the support unit 220 from top to bottom. The welding head 210 can be a welding head of a submerged arc welding machine in the prior art, or a welding head of other welding equipment.

[0039] In this embodiment, a brush is also provided on the truss 211. The brush is located above the weld of the H-beam 100 and is used to clean the weld. When the H-beam 100 moves, the brush comes into contact with the weld to clean up the excess weld slag that falls to the weld. When two adjacent H-beams 100 do not come into contact, the brush pushes the accumulated weld slag off.

[0040] In this embodiment, the support unit 220 has an inclined support surface and a support plate. The support plate is used to support the wing plates of the H-beam 100, and the support plate is provided with a power wheel for driving the H-beam 100 to move. The support surface is perpendicular to the support plate and is used to support one end face of the two wing plates of the H-beam 100.

[0041] In use, the H-beam 100, after spot welding, is clamped by the feeding mechanism 600 and fed at an incline to the support unit 220 of the welding module 200. The support unit 220 supports and transports the H-beam 100, and the feeding mechanism 600 continuously feeds the H-beam 100 to the welding module 200, so that adjacent H-beams 100 abut axially. During movement, the welding head 210 can continuously weld multiple H-beams 100 without stopping. For ease of description, the two welding modules 200 are respectively named the first module and the second module. The first module is the welding module 200 located near the spot welding chamber 500. After the H-beam 100 welded in the first module is completely moved onto the transfer module 300 and its weld seam connection with the adjacent H-beam 100 is completely separated from the support unit 220 of the previous welding module 200, the drive motor 331 starts, driving the center wheel 332 to rotate. Since the two adjacent H-beams 100 are not disconnected at this time, the movement of the support frame 310 is hindered, the planetary carrier 334 is restricted from rotating, and the external gear ring 335 rotates under the transmission of the planetary gear 333's rotation. This, in turn, drives the clamping frame 320 to rotate through the first transmission unit, causing the welded H-beam 100 to twist and separate from the adjacent H-beam 100. The entire twisting process is relatively fast. After the clamping frame 320 rotates a limited angle, the arc block 313 and the stop block in the arc groove 321... 323 abuts against the support frame 310, and is then restricted from further rotation by the elastic element 324. That is, the clamping frame 320 is restricted from rotating by the support frame 310, and consequently the external gear ring 335 is restricted from rotating. At the same time, the two H-beams 100 are disconnected, and the movement of the support frame 310 is unrestricted. Multiple planetary gears 333 rotate on their own axis and revolve around the central gear 332 under the drive of the central gear 332, thereby driving the planetary carrier 334 to rotate. The planetary carrier 334 drives the support frame 310 to move along the moving track 400 through the second transmission unit. By configuring the speed of the drive motor 331 and the transmission ratio of each component, when the support frame 310 moves to one end of the moving track 400, the H-beams 100 on it will just move to abut against the H-beams 100 on the next welding module 200. Normally, due to the inertia of the clamping frame 320's rotation, the support frame 310 will be triggered to move again after the clamping frame 320 has rotated to its position. If the H-beam 100 disconnects from the previous H-beam 100 before the clamping frame 320 rotates, the support frame 310 can move. When the center wheel 332 rotates, it either drives the clamping frame 320 to continue rotating or drives the support frame 310 to move. If the support frame 310 moves to the end of the moving track 400 and is restricted from moving by the moving track 400, the center wheel 332 continues to rotate so that the clamping frame 320 rotates into place.If the two H-beams 100 are not completely separated when the clamping frame 320 rotates to the point where the arc block 313 abuts against the stop block 323, the clamping frame 320 can overcome the elastic force of the elastic element 324 and continue to rotate until the two H-beams 100 are separated. After that, the support frame 310 moves, and the arc block 313 returns to the preset position under the rebound action of the elastic element 324. In short, by limiting the rotation angle of the clamping frame 320, the moving position of the support frame 310, and the rotation time of the center wheel 332, it is possible to ensure that the transfer module 300 completes the detachment, flipping, and movement of the H-beams 100. Moreover, the entire transfer process requires only one power output, reducing control complexity and energy consumption. When the transfer module 300 moves to the end of the moving track 400 near the second module, its movement is restricted. At this time, the center wheel 332 rotates until the angle between the H-beam 100 on the clamping frame 320 and the H-beam 100 on the second module is consistent, and then the drive motor 331 stops rotating. The drive wheel on the clamping frame 320 continues to drive the H-beam 100 on it to move, conveying it to the support unit 220 of the second module. Afterward, the drive motor 331 rotates in the opposite direction, causing the support frame 310 to move in the opposite direction, and the clamping frame 320 rotates in the opposite direction back to the end of the moving track 400 near the first module, so as to receive and convey the next H-beam 100.

[0042] After the welding of the second module is completed, the H-beam 100 can be received by an external robotic arm or a transport trolley, and separated from the adjacent H-beam 100 by cutting or twisting. Then, it is flipped over so that the other side of the web is facing up and sent back to the first module. The above work and transportation process is repeated to weld the two welds on the other side of the H-beam 100.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A steel section welding equipment with an anti-deformation positioning mechanism, used for welding the joints of H-beams, characterized in that, Includes a transfer module and a welding module; There are two welding modules, which are used to weld two welds on the same side of the web of the H-beam, and a moving track is fixed between the two welding modules. The welding module includes a welding mechanism and multiple support units. The support units are used to support and axially transport multiple axially abutting H-beams. The support units tilt the H-beams so that the weld is located at the lowest point between its adjacent flanges and webs, and the welds of two adjacent H-beams are collinear. The welding mechanism is fixed in position and is used to weld the welds as the H-beams move. The transfer module is located between two adjacent welding modules and is used to transport the welded H-beams to the next welding module. The transfer module includes multiple transfer units distributed at intervals along the moving track. Each transfer unit includes a support frame, a clamping frame, and a power mechanism. The clamping frame is rotatably mounted on the support frame and is used to clamp and transport the welded H-beams. The power mechanism is used to drive the clamping frame to rotate, thereby moving the support frame along the axial direction of the H-beams until the H-beams abut against the H-beams of the next welding module. The angle of rotation of the clamping frame relative to the support frame is limited. At least one transfer unit has a power component on its clamping frame that drives the H-beams to move relative to the clamping frame. The rotation center of the clamping frame is at the weld joint of two adjacent H-beams.

2. The steel welding equipment with an anti-deformation positioning mechanism according to claim 1, characterized in that, The clamping frame has multiple telescopic cylinders, and each telescopic cylinder has a top block at its output end. The power component is a drive wheel mounted on the top block. The multiple telescopic cylinders are divided into two groups, and the two groups are located on both sides of the steel profile, so that when extended, the steel profile is clamped by the drive wheel on the top block. The drive wheel rotates and drives the steel profile to move relative to the clamping frame.

3. The steel welding equipment with an anti-deformation positioning mechanism according to claim 1, characterized in that, The power mechanism includes a drive motor, a central gear, planetary gears, a planetary carrier, an external gear ring, a first transmission unit, and a second transmission unit. The drive motor is fixed to the support frame. The central gear is mounted on the output shaft of the drive motor. The external gear ring is coaxial with the central gear and located outside the central gear. There are multiple planetary gears, all located between the central gear and the external gear ring, and simultaneously meshing with both the central gear and the external gear ring. All planetary gears are mounted on the planetary carrier and rotate around their own axes. The external gear ring is driven by the clamping frame through the first transmission unit, thereby driving the clamping frame to rotate when it rotates. The planetary carrier is driven by the moving track through the second transmission unit, thereby causing the support frame to move along the moving track when it rotates.

4. The steel welding equipment with an anti-deformation positioning mechanism according to claim 3, characterized in that, The clamping frame has an arc groove around its rotation center, which contacts and slides with the support frame surface; the clamping frame also has an arc-shaped rack coaxial with the arc groove; the first transmission unit includes a first gear, a second gear, a first bevel gear, a second bevel gear, a support rod, and a third gear; the support rod is parallel to the weld seam of two adjacent H-beams and is rotatably mounted on the support frame; the external gear ring axis is vertical, the first gear is coaxial with the external gear ring and connected for transmission, the second gear is rotatably mounted on the support frame and meshes with the first gear; the first bevel gear is coaxial with the second gear and fixedly connected, the second bevel gear is fixedly mounted on the support rod and meshes with the first bevel gear, and the third gear is mounted on the support rod and rotates synchronously with the support rod and meshes with the arc-shaped rack.

5. The steel section welding equipment with anti-deformation positioning mechanism according to claim 4, characterized in that, Multiple horizontally mounted, perpendicular to the moving track, are rotatably installed on the support frame. The moving rollers and the moving track are driven by abutting wheels mounted on the moving rollers. The second transmission unit includes a first transmission wheel, a second transmission wheel, a transmission rod, a third bevel gear, and a fourth bevel gear. The fourth bevel gear is mounted on one of the moving rollers. The first transmission wheel is coaxial with the central wheel and connected to the planetary carrier. The second transmission wheel meshes with the first transmission wheel and is connected to the third bevel gear through the transmission rod. The third bevel gear meshes with the fourth bevel gear to transmit the rotation of the first transmission wheel to the fourth bevel gear, thereby causing one of the moving rollers to rotate and driving the support frame to move along the moving track.

6. The steel section welding equipment with anti-deformation positioning mechanism according to claim 4, characterized in that, A stop block is slidably installed inside the arc groove. The stop block is connected to one end of the arc groove through an elastic element, which causes the stop block to be in a preset position. An arc block is provided on the support frame for contacting and sliding with the surface of the arc groove. The arc block rotates 90° relative to the clamping frame from the other end of the arc groove to the preset position.

7. The steel section welding equipment with anti-deformation positioning mechanism according to claim 5, characterized in that, There are multiple second gears, first bevel gears, second bevel gears, third gears, and arc-shaped racks, and the second gears, first bevel gears, and second bevel gears correspond one-to-one, and the third gear and arc-shaped rack correspond one-to-one.

8. The steel section welding equipment with anti-deformation positioning mechanism according to claim 1, characterized in that, The welding mechanism includes a truss and a welding head. The truss is fixed to the ground, and the welding head is installed on the truss and welds the H-beams on the support unit from top to bottom.

9. The steel section welding equipment with anti-deformation positioning mechanism according to claim 8, characterized in that, The truss is also equipped with brushes, which are located above the welds of the H-beams and are used to clean the welds.

10. The steel section welding equipment with anti-deformation positioning mechanism according to claim 1, characterized in that, The support unit has an inclined support surface and a support plate. The support plate is used to support the flanges of the H-beam, and the support plate is equipped with a power wheel for driving the H-beam to move. The support surface is perpendicular to the support plate and is used to support one end face of the two flanges of the H-beam.

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