Assembly type steel structure welding device

Abstract

The invention belongs to the technical field of steel structure welding devices, and particularly relates to an assembly type steel structure welding device which comprises a roller way conveying device and a welding device body. The roller way conveying device is used for welding the combined T-shaped steel through the welding device; a storage rack is further included; a steel plate positioning device is arranged among the plurality of carrier roller frames; the steel plate positioning device comprises a positioning trailer and a transfer trailer which are oppositely arranged, and the positioning trailer and the transfer trailer are correspondingly provided with fixed rails; a positioning arm is hinged to the positioning trailer, and a positioning cylinder is arranged between the positioning arm and the positioning trailer; a transfer arm is hinged to the transfer trailer, a supporting cylinder is arranged between the transfer arm and the transfer trailer, and an electromagnetic assembly is arranged on the transfer arm. Adsorption, transfer and erection of the web are realized by arranging the independent transfer trailer, and the lifting action of the wing plate and the erection action of the web are separated, so that the occupied time of a single lifting device is effectively shortened, the procedure rhythm is optimized, and the overall production efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the technical field of steel structure welding equipment, and specifically relates to an assembled steel structure welding equipment. Background Technology

[0002] In the field of prefabricated steel structure buildings, T-beams, as the basic unit of key load-bearing components such as steel beams and trusses, directly affect the safety and economy of the overall project through their welding quality and production efficiency. T-beams are formed by vertically welding a web plate to the middle of a flange. Traditionally, the pre-welding assembly process relies on a single hoisting device for step-by-step operations: first, the flange is hoisted to the welding station and preliminarily positioned; then, the web is hoisted and manually assisted to rotate from a horizontal to a vertical position; finally, the relative positions of the web and flange are adjusted to complete the assembly. This method has many technical limitations. On the one hand, the hoisting device needs to alternately move the flange and web, resulting in long equipment downtime, poor process coordination, and a bottleneck in production rhythm, making it difficult to meet the needs of continuous production. On the other hand, during the rotation from horizontal to vertical, the lower edge of the web plate is prone to sliding friction with the upper surface of the positioned flange, which can not only scratch the anti-rust layer or coating on the steel plate surface, affecting the corrosion resistance of the component, but also potentially cause surface defects such as scratches, posing a threat to the appearance quality and anti-corrosion treatment after welding.

[0003] While existing technologies include automated forming systems for building steel beams, such as the fully automated one-time forming system for prefabricated building steel beams described in patent application CN110340561A, which achieves the assembly and welding of the web plate and the first flange plate, and the flipping and docking of the T-beam and the second flange plate through the cooperation of a pre-assembly mechanism, an alignment and welding mechanism, and a flipping and docking assembly mechanism, significantly improving the overall automation level of production, this solution still uses a method of lifting the web plate from above the flange plate during the initial assembly stage of the web plate and the first flange plate. During this process, the bottom edge of the web plate slides relative to the upper surface of the flange plate, making it difficult to avoid the risk of surface scratches. Furthermore, the end alignment process relies on a clamping and dragging device to repeatedly adjust the web plate position, making the process complex. Additionally, the assembled T-beam lacks effective anti-deviation measures when transported to subsequent workstations. Therefore, the existing T-beam pre-welding assembly method still has room for improvement in terms of surface quality protection, assembly efficiency, and positioning accuracy. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a prefabricated steel structure welding device that can improve production efficiency and prevent sliding friction damage between the web and flange during assembly.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A prefabricated steel structure welding device includes a roller conveyor and a welding device; the roller conveyor welds the assembled T-shaped steel using the welding device; it also includes a storage rack; the roller conveyor consists of several idler frames; and a steel plate positioning device is provided between the several idler frames. The steel plate positioning device includes a positioning trailer and a transfer trailer arranged opposite to each other, and both the positioning trailer and the transfer trailer are equipped with fixed tracks; a positioning arm is hinged on the positioning trailer, and a positioning cylinder is provided between the positioning arm and the positioning trailer; a transfer arm is hinged on the transfer trailer, and a support cylinder is provided between the transfer arm and the transfer trailer, and an electromagnetic component is provided on the transfer arm. The web plate on the storage rack is attracted by an electromagnetic component and then transferred to the roller frame by a transfer trailer. The transfer arm is rotated by a support cylinder, so that the web plate is rotated from horizontal to vertical. The web plate is located between the positioning arm and the transfer arm. The roller frame is equipped with a first lifting mechanism, which lifts the wing plate on the roller frame to contact the web plate and combine them into a T-shaped steel. The electromagnetic component releases the adsorption of the web plate, and the first lifting mechanism drives the combined T-shaped steel to move down.

[0006] The steel plate positioning device also includes a moving track device, which is located between two fixed tracks; the moving track device can drive the transfer trailer to move toward or away from the welding device. The mobile track device includes a mobile track vehicle and a docking track, with the docking track fixedly mounted on the body of the mobile track vehicle; the transfer trailer can move along the fixed track to the docking track.

[0007] The electromagnetic assembly includes a movable frame and a telescopic cylinder. The movable frame is slidably connected to the transfer arm, and the two ends of the telescopic cylinder are fixedly connected to the movable frame and the transfer arm, respectively. A first electromagnet and a second electromagnet are fixedly connected to the movable frame. The first electromagnet is used to attract the web plate, and the second electromagnet is used to attract the wing plate. A positioning guide roller is rotatably connected to the positioning arm.

[0008] A drive cylinder is connected between the positioning trailer and the fixed track. The extension and retraction of the drive cylinder drives the positioning trailer to move along the fixed track. The transfer trailer is equipped with electric track wheels. The roller frame is equipped with a wing plate positioning assembly, and the positioning trailer is equipped with a positioning support arm that cooperates with the wing plate positioning assembly.

[0009] The wing plate positioning assembly includes a wing plate positioning arm and a positioning telescopic cylinder. The wing plate positioning arm is slidably connected to the frame of the roller frame, and the two ends of the positioning telescopic cylinder are fixedly connected to the frame of the roller frame and the wing plate positioning arm, respectively.

[0010] The first lifting mechanism includes a first lifting cylinder, a first support rod, and a third electromagnet; the first support rod is slidably connected to the frame of the roller frame, and the two ends of the first lifting cylinder are fixedly connected to the frame of the roller frame and the first support rod, respectively; the third electromagnet is fixed on the first support rod.

[0011] The storage rack is equipped with a second lifting mechanism, which includes a second lifting cylinder, a second support rod, and a fourth electromagnet. The second support rod is slidably connected to the storage rack, and the two ends of the second lifting cylinder are fixedly connected to the storage rack and the second support rod, respectively. The fourth electromagnet is fixed on the second support rod.

[0012] An alignment device is provided on the roller frame near the welding device among several roller frames. The alignment device includes an alignment plate, an alignment arm and an alignment telescopic cylinder. One end of the alignment arm is fixedly connected to the alignment plate, and the other end of the alignment arm is hinged to the frame of the roller frame. A sensor is provided on the alignment plate. A connecting shaft is provided in the middle of the alignment arm. The two ends of the alignment telescopic cylinder are respectively hinged to the frame of the roller frame and the connecting shaft.

[0013] It also includes an electromagnetic hoisting device, which hoists the steel plate onto a roller conveyor or storage rack; the electromagnetic hoisting device includes a hoisting frame, a moving crossbeam, a lifting rod, and a lifting plate; the moving crossbeam is slidably connected to the hoisting frame, the lifting rod is set on the moving crossbeam, and the lifting plate is fixedly connected to the telescopic part of the lifting rod; the lifting plate is connected to a fifth electromagnet via a sling.

[0014] The welding device includes a spot welding device and a continuous welding device, with a conveying roller frame between the spot welding device and the continuous welding device; the assembled T-shaped steel is spot welded by the spot welding device, and then continuously welded by the continuous welding device.

[0015] Compared with the prior art, the beneficial effects of this invention are: By setting up an independent transfer trailer to achieve the adsorption, transfer and erection of the web plate, and separating the hoisting of the wing plate from the erection of the web plate, the occupation time of a single hoisting device is effectively shortened, the process cycle is optimized, and the overall production efficiency is improved.

[0016] The first lifting mechanism lifts the wing plate, making it contact the already erected web plate in a suspended state. After the assembly is completed, the whole thing is lowered onto the rollers. This completely avoids sliding friction between the web plate and the wing plate surface during the erection process, solving the defects such as surface scratches and coating damage caused by relative sliding in the existing technology, and ensuring the surface integrity and corrosion resistance of the components.

[0017] Through the coordinated operation of the moving track device, alignment device, and wing plate positioning assembly, the precise adjustment of the end alignment of the web plate and wing plate in the length direction and the centering positioning of the wing plate in the width direction are achieved.

[0018] By synchronously attracting the first and second electromagnets in the electromagnetic assembly, the web and flanges are continuously clamped and fixed during the conveying of the assembled T-shaped steel to the welding device, effectively preventing relative displacement caused by conveying vibration or differences in driving force. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a structural schematic diagram of the steel plate positioning device and electromagnetic hoisting device of the present invention; Figure 3 This is a schematic diagram of the electromagnetic hoisting device of the present invention; Figure 4 yes Figure 2 A schematic diagram of the structure from another direction shown; Figure 5 yes Figure 4 A magnified view of a section at point A in the middle; Figure 6 yes Figure 2 A schematic diagram of the structure shown in another direction; Figure 7 yes Figure 6 A magnified view of a section at point B in the middle; Figure 8 This is a schematic diagram of the alignment device of the present invention; Figure 9 This is a schematic diagram of the structure of the first lifting mechanism of the present invention; Figure 10 This is a schematic diagram of the structure of the second lifting mechanism of the present invention; Figure 11 This is a schematic diagram of the structure of the mobile track device and the transfer trailer of the present invention; Figure 12 This is a schematic diagram of the structure of the transfer trailer of the present invention; Figure 13 This is a cross-sectional view of the transport trailer of the present invention; Wherein: 1 is a roller conveyor device, 10 is a roller frame, 2 is a welding device, 20 is a spot welding device, 21 is a continuous welding device, 22 is a conveyor roller frame, 3 is a storage rack, 4 is a steel plate positioning device, 40 is a positioning trailer, 400 is a positioning arm, 401 is a positioning cylinder, 402 is a positioning guide roller, 403 is a positioning support arm, 41 is a transfer trailer, 410 is a transfer arm, 411 is a support cylinder, 42 is a fixed track, 43 is an electromagnetic assembly, 430 is a moving frame, 431 is a telescopic cylinder, 432 is a first electromagnet, 433 is a second electromagnet, 44 is a moving track device, 440 is a moving track vehicle, 441 is a docking track, and 45 is a drive cylinder. 46 is an electric track wheel, 5 is the first lifting mechanism, 50 is the first lifting cylinder, 51 is the first support rod, 52 is the third electromagnet, 6 is the wing plate positioning assembly, 60 is the wing plate positioning arm, 61 is the positioning telescopic cylinder, 7 is the second lifting mechanism, 70 is the second lifting cylinder, 71 is the second support rod, 72 is the fourth electromagnet, 8 is the alignment device, 80 is the alignment plate, 81 is the alignment arm, 82 is the alignment telescopic cylinder, 83 is the sensor, 84 is the connecting shaft, 9 is the electromagnetic hoisting device, 90 is the hoisting frame, 91 is the moving crossbeam, 92 is the lifting rod, 93 is the lifting plate, 94 is the fifth electromagnet, 100 is the steel plate, 101 is the wing plate, and 102 is the web plate. Detailed Implementation

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] like Figure 1 As shown, a prefabricated steel structure welding device includes a roller conveyor device 1 and a welding device 2; the roller conveyor device 1 welds the assembled T-shaped steel through the welding device 2; the assembled T-shaped steel refers to the state after the web plate 102 is placed in the middle of the wing plate 101.

[0022] The aforementioned welding device 2 can adopt the structure of the existing technology, which mainly includes a spot welding device 20 and a continuous welding device 21. A conveying roller frame 22 is provided between the spot welding device 20 and the continuous welding device 21. The combined T-shaped steel is spot welded by the spot welding device 20, and after spot welding, it is continuously welded by the continuous welding device 21 to finally obtain the welded T-shaped steel.

[0023] The roller conveyor device 1 consists of several idler frames 10, each mainly composed of a frame and idler rollers. Several idler rollers are provided, and these rollers can be electrically operated, enabling the movement of the assembled T-shaped steel sections. Alternatively, the idler rollers can be connected by sprockets and chains, and their rotation can be driven by a single motor.

[0024] like Figure 2 , Figure 4, Figure 5 , Figures 11 to 13 As shown, a steel plate positioning device 4 is provided between several roller frames 10. The steel plate positioning device 4 includes a positioning trailer 40 and a transfer trailer 41 arranged opposite to each other. Both the positioning trailer 40 and the transfer trailer 41 are equipped with fixed rails 42, and both the positioning trailer 40 and the transfer trailer 41 can move along the fixed rails 42. The fixed rails 42 and the roller frames 10 are arranged in a cross shape.

[0025] A positioning arm 400 is hinged to the positioning trailer 40. A positioning cylinder 401 is provided between the positioning arm 400 and the positioning trailer 40. The two ends of the positioning cylinder 401 are hinged to the positioning arm 400 and the positioning trailer 40 respectively. The rotation of the positioning arm 400 is achieved by the extension and retraction of the piston rod of the positioning cylinder 401.

[0026] like Figure 13 As shown, a transfer arm 410 is hinged to the transfer trailer 41. A support cylinder 411 is provided between the transfer arm 410 and the transfer trailer 41. Both ends of the support cylinder 411 are hinged to the transfer arm 410 and the transfer trailer 41, respectively. The rotation of the transfer arm 410 is achieved by the extension and retraction of the piston rod of the support cylinder 411. For the specific connection method between the positioning cylinder 401 and the positioning arm 400 and the positioning trailer 40, please refer to [reference needed]. Figure 13 The structure shown is configured as follows.

[0027] like Figure 11 and Figure 12 As shown, an electromagnetic component 43 is provided on the transfer arm 410. The main function of the electromagnetic component 43 is to attract the steel plate 100, specifically the web plate 102 of the T-shaped steel. Specifically, a counterweight is provided at the end of the transfer trailer 41. The weight of the counterweight is set according to the weight of the steel plate 100 (web plate 102) to provide sufficient support and ensure that the transfer trailer 41 remains stable (balanced) during the process of the web plate 102 rotating from a horizontal to a vertical position.

[0028] During operation, the steel plate 100 (specifically, the wing plate 101 in the T-shaped steel) is hoisted onto the roller frame 10 using a hoisting device. While hoisting the wing plate 101, the transfer trailer 41 also moves synchronously to the transfer frame. At this time, the transfer arm 410 is in a horizontal position, and the electromagnetic component 43 is located below the web plate 102 on the storage rack 3. The electromagnetic component 43 attracts the web plate 102 on the storage rack 3, and then the transfer trailer 41 transfers it to the roller frame 10.

[0029] After the wing plate 101 is placed on the roller frame 10, the support cylinder 411 drives the transfer arm 410 to rotate into a vertical position, causing the web plate 102 to rotate from a horizontal to a vertical position. The web plate 102 is located between the positioning arm 400 (which is rotated into a vertical position by the positioning cylinder 401) and the transfer arm 410. At this time, there is a gap between the bottom of the web plate 102 and the upper surface of the wing plate 101.

[0030] A first lifting mechanism 5 is provided on the roller frame 10. The first lifting mechanism 5 lifts the wing plate 101 on the roller frame 10 to contact the web plate 102 and combine them into a T-shaped steel. The electromagnetic component 43 releases the attraction of the web plate 102, and the first lifting mechanism 5 drives the combined T-shaped steel to move downward. During the downward movement, the web plate 102 moves downward through the gap formed between the positioning arm 400 and the transfer arm 410, which plays a certain guiding role.

[0031] With the above-mentioned structural configuration, the wing plate 101 can be hoisted by the hoisting device, and the web plate 102 can be transferred and erected (from horizontal to vertical) by the transfer trailer 41. Compared with hoisting only the wing plate 101 and web plate 102, the time occupied in hoisting and assembling into T-shaped steel can be effectively shortened.

[0032] Simultaneously, the first lifting mechanism 5 first lifts the wing plate 101 to contact the web plate 102, and then lowers the assembled T-shaped steel to contact the rollers on the roller frame 10. This assembly method prevents sliding friction between the web plate 102 and the wing plate 101, avoiding the surface scratches and other defects that occur when the web plate 102 is erected, as is common in the prior art.

[0033] Furthermore, such as Figure 2 , Figure 4 , Figure 5 and Figure 11 As shown, the steel plate positioning device 4 also includes a moving track device 44, which is located between two fixed tracks 42. The moving track device 44 can drive the transfer trailer 41 to move closer to or further away from the welding device 2, thereby realizing the position adjustment of the web plate 102 and ensuring that the ends of the wing plate 101 and the web plate 102 are flush.

[0034] The mobile track device 44 includes a mobile track vehicle 440 and a docking track 441. The mobile track vehicle 440 is equipped with electric track wheels 46 or can be driven by hydraulic cylinders. A corresponding track is provided on the ground, which is set parallel to the roller frame 10. The mobile track vehicle 440 can move along the track. When hydraulic cylinders are used, both ends of the cylinders are hinged to the track and the body of the mobile track vehicle 440, respectively.

[0035] The docking track 441 is fixedly mounted on the body of the mobile railcar 440. The transfer trailer 41 can move along the fixed track 42 to the docking track 441; then, by moving the mobile railcar 440 along the track, the position of the web plate 102 can be adjusted so that it is flush with the end of the wing plate 101.

[0036] Furthermore, such as Figure 11 and Figure 12 As shown, the electromagnetic component 43 includes a movable frame 430 and a telescopic cylinder 431. The movable frame 430 is slidably connected to the transfer arm 410. The two ends of the telescopic cylinder 431 are fixedly connected to the movable frame 430 and the transfer arm 410 respectively. The movable frame 430 can be moved by extending and retracting the piston rod of the telescopic cylinder 431.

[0037] A first electromagnet 432 is fixedly connected to the mobile frame 430. The first electromagnet 432 is used to attract the web plate 102. After the first electromagnet 432 attracts the web plate 102, it is transferred to the roller frame 10 by the transfer trailer 41. Then, the transfer trailer 41 is moved by the mobile track device 44 so that the wing plate 101 is flush with the web plate 102.

[0038] Afterwards, the first electromagnet 432 releases its attraction to the web plate 102, and the first lifting mechanism 5 moves the assembled T-shaped steel downwards. After moving downwards, the piston rod of the telescopic cylinder 431 retracts, causing the moving frame 430 to move downwards, so that the second electromagnet 433 set at the lower part of the moving frame 430 contacts the wing plate 101; then the first electromagnet 432 and the second electromagnet 433 are energized, and the first electromagnet 432 and the second electromagnet 433 respectively attract the web plate 102 and the wing plate 101 of the assembled T-shaped steel, thereby fixing the positions of the web plate 102 and the wing plate 101; finally, the rollers on the roller frame 10 are started to rotate to move the assembled T-shaped steel. At the same time, the moving track device 44 also cooperates to drive the transfer trailer 41 to move towards the welding device.

[0039] With the above-mentioned structure, the first electromagnetic sticker and the second electromagnet 433 can prevent the combined T-shaped steel from shifting in position during the process of being transported to the spot welding device 20 by the roller frame 10, which would cause the ends of the two to be uneven.

[0040] Furthermore, such as Figure 5 As shown, in order to reduce the resistance of the wing plate 101 during the movement process (alignment and movement toward the welding device), a positioning guide roller 402 is rotatably connected to the positioning arm 400.

[0041] Furthermore, such as Figure 5As shown, a drive cylinder 45 connects the positioning trailer 40 to the fixed track 42. The extension and retraction of the drive cylinder 45 drives the positioning trailer 40 to move along the fixed track 42. That is, the movement of the positioning trailer 40 is achieved by the extension and retraction of the piston rod of the drive cylinder 45. The transfer trailer 41 is equipped with electric track wheels 46, meaning that the transfer trailer 41 moves via the electric track wheels 46.

[0042] The roller frame 10 is provided with a wing plate positioning assembly 6, and the positioning trailer 40 is provided with a positioning support arm 403 that cooperates with the wing plate positioning assembly 6.

[0043] After being placed on the roller frame 10 by the hoisting device, the positioning trailer 40 (which drives the positioning arm 400 to rotate to a horizontal state via the positioning cylinder 401, and its height is lower than the wing plate 101 on the roller frame 10) moves toward the wing plate positioning assembly 6. The positioning arm 403 on the positioning trailer 40 contacts the wing plate 101 on the roller frame 10, pushing the wing plate 101 toward the wing plate positioning assembly 6 until it contacts the wing plate positioning assembly 6, thus completing the positioning of the wing plate 101 (located in the middle of the roller frame 10).

[0044] Furthermore, such as Figure 5 and Figure 8 As shown, the wing plate positioning assembly 6 includes a wing plate positioning arm 60 and a positioning telescopic cylinder 61. The wing plate positioning arm 60 is slidably connected to the frame of the roller frame 10, and the two ends of the positioning telescopic cylinder 61 are fixedly connected to the frame of the roller frame 10 and the wing plate positioning arm 60, respectively. The position of the wing plate positioning arm 60 is adjusted by extending and retracting the piston rod of the positioning telescopic cylinder 61 according to the width of different wing plates 101.

[0045] The positioning trailer 40 moves towards the wing plate positioning arm 60 by extending the piston rod of the drive cylinder 45. During this movement, the positioning support arm contacts the wing plate 101 and pushes it towards the wing plate positioning arm 60 until the side of the wing plate 101 contacts the wing plate positioning arm 60, completing the positioning. Specifically, a sensor, such as a pressure sensor, is provided on the wing plate positioning arm 60. When the side of the wing plate 101 contacts the wing plate positioning arm 60, the pressure sensor sends a signal, causing the piston rod of the drive cylinder 45 to stop extending.

[0046] The above structure is used to position the wing plate 101 so that it is located in the middle of the roller frame 10; then the piston rod of the drive cylinder 45 retracts to reset the positioning trailer 40, and the positioning cylinder 401 drives the positioning arm 400 to rotate to a vertical position to position the upright web plate 102.

[0047] Furthermore, such as Figure 9As shown, the first lifting mechanism 5 includes a first lifting cylinder 50, a first support rod 51, and a third electromagnet 52; the first support rod 51 is slidably connected to the frame of the roller frame 10, and the two ends of the first lifting cylinder 50 are fixedly connected to the frame of the roller frame 10 and the first support rod 51, respectively. The first support rod 51 is moved up or down by the extension and retraction of the piston rod of the first lifting cylinder 50.

[0048] The third electromagnet 52 is fixed on the first support rod 51. After the first support rod 51 moves upward, the third electromagnet 52 comes into contact with the wing plate 101. At this time, the third electromagnet 52 is energized and attracts the wing plate 101, thereby preventing the wing plate 101 from moving during the lifting or lowering process.

[0049] Furthermore, such as Figure 10 As shown, to facilitate the transfer trailer 41 in retrieving the web plate 102 on the storage rack 3, a second lifting mechanism 7 is provided on the storage rack 3. The second lifting mechanism 7 includes a second lifting cylinder 70, a second support rod 71, and a fourth electromagnet 72. The second support rod 71 is slidably connected to the storage rack 3, and the two ends of the second lifting cylinder 70 are fixedly connected to the storage rack 3 and the second support rod 71, respectively. The second support rod 71 is moved up or down by extending or retracting the piston rod of the second lifting cylinder 70.

[0050] The fourth electromagnet 72 is fixed on the second support rod 71. After the second support rod 71 moves upward, the fourth electromagnet 72 comes into contact with the wing plate 101. At this time, the fourth electromagnet 72 is energized and attracts the wing plate 101, thereby preventing the web plate 102 from moving during the lifting or lowering process.

[0051] The specific operation process is as follows: The second lifting cylinder 70 lifts the second support rod 71, the fourth electromagnet 72, and the web plate 102; the transfer arm 410 on the transfer trailer 41 is in a horizontal state, and the transfer trailer 41 moves towards the storage rack 3, causing the transfer arm 410 to move below the lifted web plate 102. Then, the second lifting causes the second support rod 71, the fourth electromagnet 72, and the web plate 102 to move downwards, so that the web plate 102 contacts the first electromagnet 432. At this time, the fourth electromagnet 72 is de-energized, and the first electromagnet 432 is energized, attracting the web plate 102. Finally, the second lifting causes the second support rod 71 and the fourth electromagnet 72 to continue to move downwards and reset.

[0052] Furthermore, such as Figures 6 to 8As shown, an alignment device 8 is provided on the roller frame 10 near the welding device 2 among several roller frames 10. The alignment device 8 includes an alignment plate 80, an alignment arm 81 and an alignment telescopic cylinder 82. One end of the alignment arm 81 is fixedly connected to the alignment plate 80, and the other end of the alignment arm 81 is hinged to the frame of the roller frame 10. A sensor 83 is provided on the alignment plate 80. A connecting shaft 84 is provided in the middle of the alignment arm 81. The two ends of the alignment telescopic cylinder 82 are respectively hinged to the frame of the roller frame 10 and the connecting shaft 84. The rotation of the alignment arm 81 and the alignment plate 80 is realized by the extension and retraction of the piston rod of the alignment telescopic cylinder 82, so that the alignment plate 80 is in a vertical or horizontal state.

[0053] The alignment plate 80 is equipped with two sensors 83, which correspond to the wing plate 101 and the web plate 102 respectively.

[0054] The alignment process of the wing plate 101 is as follows: the alignment plate 80 is in a vertical state; after the wing plate 101 is placed on the roller frame 10, the rollers on the roller frame 10 drive the wing plate 101 to move toward the alignment plate 80. After the end of the wing plate 101 contacts the alignment plate 80, the sensor 83 sends a signal to stop the rollers on the roller frame 10 from rotating and no longer drive the wing plate 101 to move.

[0055] The alignment process of the web plate 102 is as follows: the alignment plate 80 is in a vertical state; the transfer trailer 41 is moved by the moving track device 44, so that the web plate 102 adsorbed by it moves towards the alignment plate 80. After the end of the web plate 102 contacts the alignment plate 80, the corresponding sensor 83 sends a signal and the moving track device 44 stops moving.

[0056] After the wing plate 101 and web plate 102 are aligned, the first lifting mechanism 5 first lifts the wing plate 101 to contact the web plate 102, and then moves the assembled T-shaped steel down to contact the rollers on the roller frame 10. Finally, the roller frame 10 and the moving track device 44 work together to move the assembled T-shaped steel toward the welding device. It should be noted that before the wing plate 101 is aligned, the wing plate positioning assembly 6 and the positioning support arm 403 have already positioned the wing plate 101 in the middle of the roller frame 10.

[0057] Furthermore, such as Figure 2 and Figure 3 As shown, it also includes an electromagnetic hoisting device 9, which can adopt the structure of existing technology. It can hoist the steel plate 100 onto the roller conveyor device 1 or the storage rack 3. Specifically, the electromagnetic hoisting device 9 includes a hoisting frame 90, a moving crossbeam 91, a lifting rod 92, and a lifting plate 93. The moving crossbeam 91 is slidably connected to the hoisting frame 90, and a drive mechanism is provided between the moving crossbeam 91 and the hoisting frame 90. The moving crossbeam 91 can be moved along the hoisting frame 90 through the drive mechanism.

[0058] The lifting rod 92 is mounted on the moving crossbeam 91, and the lifting plate 93 is fixedly connected to the telescopic part of the lifting rod 92; the lifting rod 92 drives the lifting rod to move up and down. A fifth electromagnet 94 is connected to the lifting plate 93 by a sling, and the steel plate 100 is attracted by the fifth electromagnet 94.

[0059] The process of hoisting the steel plate 100 onto the roller conveyor device 1 is as follows: the moving beam 91 moves to the location where the steel plate 100 is stored, so that the lifting plate 93 is positioned above the stored steel plate 100. Then, the lifting rod 92 moves the lifting plate 93 downward, and the fifth electromagnet 94 is energized to attract the steel plate 100. Finally, the moving beam 91 moves the steel plate 100 above the roller conveyor device 1, the lifting rod 92 moves the lifting plate 93 downward, and the fifth electromagnet 94 is de-energized, placing the steel plate 100 onto the roller conveyor device 1. The process of hoisting the steel plate 100 onto the storage rack 3 is similar, and therefore will not be repeated here.

[0060] The above description only illustrates preferred embodiments of the present invention, but the present invention is not limited to the above embodiments.

Claims

1. A prefabricated steel structure welding device, comprising a roller conveyor (1) and a welding device (2); the roller conveyor (1) welds the assembled T-shaped steel sections through the welding device (2); characterized in that: It also includes a storage rack (3); the roller conveyor device (1) consists of several roller frames (10); a steel plate positioning device (4) is provided between the several roller frames (10); The steel plate positioning device (4) includes a positioning trailer (40) and a transfer trailer (41) arranged opposite to each other. Both the positioning trailer (40) and the transfer trailer (41) are equipped with fixed tracks (42). A positioning arm (400) is hinged on the positioning trailer (40), and a positioning cylinder (401) is provided between the positioning arm (400) and the positioning trailer (40). A transfer arm (410) is hinged on the transfer trailer (41), and a support cylinder (411) is provided between the transfer arm (410) and the transfer trailer (41). An electromagnetic component (43) is provided on the transfer arm (410). The web plate (102) on the storage rack (3) is attracted by the electromagnetic component (43) and transferred to the roller frame (10) by the transfer trailer (41). The transfer arm (410) is rotated by the support cylinder (411) so that the web plate (102) is rotated from horizontal to vertical. The web plate (102) is located between the positioning arm (400) and the transfer arm (410). The roller frame (10) is provided with a first lifting mechanism (5). The first lifting mechanism (5) lifts the wing plate (101) on the roller frame (10) to contact the web plate (102) and combine them into a T-shaped steel. The electromagnetic component (43) releases the adsorption on the web plate (102), and the first lifting mechanism (5) drives the combined T-shaped steel to move down.

2. The prefabricated steel structure welding device according to claim 1, characterized in that: The steel plate positioning device (4) also includes a moving track device (44), which is located between two fixed tracks (42); the moving track device (44) can drive the transfer trailer (41) to move toward or away from the welding device (2); The mobile track device (44) includes a mobile track vehicle (440) and a docking track (441), the docking track (441) being fixedly mounted on the body of the mobile track vehicle (440); the transfer trailer (41) can move along the fixed track (42) to the docking track (441).

3. A prefabricated steel structure welding device according to claim 1 or 2, characterized in that: The electromagnetic component (43) includes a movable frame (430) and a telescopic cylinder (431). The movable frame (430) is slidably connected to the transfer arm (410), and the two ends of the telescopic cylinder (431) are fixedly connected to the movable frame (430) and the transfer arm (410) respectively. A first electromagnet (432) and a second electromagnet (433) are fixedly connected on the movable frame (430). The first electromagnet (432) is used to attract the web plate (102), and the second electromagnet (433) is used to attract the wing plate (101). A positioning guide roller (402) is rotatably connected on the positioning arm (400).

4. The prefabricated steel structure welding device according to claim 1, characterized in that: A drive cylinder (45) is connected between the positioning trailer (40) and the fixed track (42). The extension and retraction of the drive cylinder (45) drives the positioning trailer (40) to move along the fixed track (42). The transfer trailer (41) is equipped with electric track wheels (46). The roller frame (10) is provided with a wing plate positioning assembly (6), and the positioning trailer (40) is provided with a positioning arm (403) that cooperates with the wing plate positioning assembly (6).

5. The prefabricated steel structure welding device according to claim 4, characterized in that: The wing plate positioning assembly (6) includes a wing plate positioning arm (60) and a positioning telescopic cylinder (61). The wing plate positioning arm (60) is slidably connected to the frame of the roller frame (10), and the two ends of the positioning telescopic cylinder (61) are fixedly connected to the frame of the roller frame (10) and the wing plate positioning arm (60) respectively.

6. The prefabricated steel structure welding device according to claim 1, characterized in that: The first lifting mechanism (5) includes a first lifting cylinder (50), a first support rod (51) and a third electromagnet (52); the first support rod (51) is slidably connected to the frame of the roller frame (10), and the two ends of the first lifting cylinder (50) are fixedly connected to the frame of the roller frame (10) and the first support rod (51) respectively; the third electromagnet (52) is fixed on the first support rod (51).

7. The prefabricated steel structure welding device according to claim 1, characterized in that: The storage rack (3) is provided with a second lifting mechanism (7), which includes a second lifting cylinder (70), a second support rod (71) and a fourth electromagnet (72). The second support rod (71) is slidably connected to the storage rack (3), and the two ends of the second lifting cylinder (70) are fixedly connected to the storage rack (3) and the second support rod (71) respectively. The fourth electromagnet (72) is fixed on the second support rod (71).

8. The prefabricated steel structure welding device according to claim 1, characterized in that: An alignment device (8) is provided on the roller frame (10) near the welding device (2) among several roller frames (10). The alignment device (8) includes an alignment plate (80), an alignment arm (81) and an alignment telescopic cylinder (82). One end of the alignment arm (81) is fixedly connected to the alignment plate (80), and the other end of the alignment arm (81) is hinged to the frame of the roller frame (10). A sensor (83) is provided on the alignment plate (80). A connecting shaft (84) is provided in the middle of the alignment arm (81), and both ends of the alignment telescopic cylinder (82) are hinged to the frame of the roller frame (10) and the connecting shaft (84) respectively.

9. The prefabricated steel structure welding device according to claim 1, characterized in that: It also includes an electromagnetic hoisting device (9), which hoists the steel plate (100) onto the roller conveyor (1) or storage rack (3); the electromagnetic hoisting device (9) includes a hoisting frame (90), a moving crossbeam (91), a lifting rod (92) and a lifting plate (93); the moving crossbeam (91) is slidably connected to the hoisting frame (90), the lifting rod (92) is set on the moving crossbeam (91), and the lifting plate (93) is fixedly connected to the telescopic part of the lifting rod (92); the lifting plate (93) is connected to a fifth electromagnet (94) by a sling.

10. The prefabricated steel structure welding device according to claim 1, characterized in that: The welding device (2) includes a spot welding device (20) and a continuous welding device (21), with a conveying roller frame (22) between the spot welding device (20) and the continuous welding device (21); the combined T-shaped steel is spot welded by the spot welding device (20), and then continuously welded by the continuous welding device (21).

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