A preliminary processing and welding equipment for triangular bracket steel for highway bridges

Abstract

This invention discloses a preliminary processing welding equipment for triangular bracket steel for highway bridges, relating to the field of welding technology. It includes a fixed frame with an mounting frame fixedly connected to its top. The fixed frame contains a conveying device for transporting materials. It also includes a movable frame slidably connected to the top of the mounting frame, with a first lead screw rotatably connected to the top of the mounting frame. The first lead screw passes through the movable frame and is connected to it via a ball nut pair. Welding robots are fixedly connected to both ends of the movable frame. By adjusting the locking mechanisms on both sides of the movable frame, the distribution of multiple locking components is adjusted, ensuring that the locking components are evenly distributed on the outer side of the plate. The locking components then fix the plate to the I-beam steel, ensuring stability during welding and preventing movement of the plate, which could lead to incomplete welds. The precise clamping and locking functions prevent incomplete welds or displacement of the plate, ensuring stable and reliable welding quality.

Description

Technical Field

[0001] This invention relates to the field of welding technology, and in particular to a preliminary welding equipment for triangular bracket steel for highway bridges. Background Technology

[0002] In highway bridge construction, triangular bracket steel is mainly used to support the key nodes of block 0 and block 1, ensuring the stability and accuracy of the cantilever casting process. In the initial processing of triangular bracket steel, three steel sections are spliced ​​together. During the initial processing, reinforcements need to be welded onto individual steel sections.

[0003] Referring to patent application CN119658233A, a welding equipment for H-beams in steel structure workshops is disclosed. It includes a welding device body and an operating table. The operating table is provided with a first support portion and a second support portion. The first support portion supports the H-beam body, and the second support portion is used to fix and install a liner plate. The first support portion includes a lifting support assembly and a support bed disposed on the lifting support assembly. The support bed can support the front end of the H-beam body to tilt towards the second support portion. The second support portion can drive the installation liner plate and the H-beam body to move and rotate. This application uses the first and second support portions to support the H-beam body and the installation liner plate respectively, enabling rapid docking. Adjusting the first support portion allows the H-beam body to be kept in an inclined state for welding, facilitating the operation of the welding wire and the welding device body, and ensuring welding results.

[0004] The following defects exist in the welding process between plates and steel profiles: 1. Insufficient manual positioning accuracy leads to poor fit between plates and steel profiles, resulting in high welding deformation rate; 2. Existing clamping devices lack dynamic pressure feedback, causing plate displacement during welding and resulting in incomplete welding defects; 3. Post-weld processing is separated, requiring secondary handling to a dedicated grinding station, which is inefficient.

[0005] Therefore, it is necessary to provide a preliminary processing and welding equipment for triangular bracket steel for highway bridges to solve the above-mentioned technical problems. Summary of the Invention

[0006] The purpose of this invention is to provide a preliminary processing and welding equipment for triangular bracket steel for highway bridges, so as to solve the problems of the prior art mentioned in the background.

[0007] Based on the above ideas, the present invention provides the following technical solution: a preliminary processing and welding equipment for triangular bracket steel for highway bridges, comprising a fixed frame, an installation frame fixedly connected to the top of the fixed frame, a conveying device for conveying inside the fixed frame, and further comprising:

[0008] A movable frame is slidably connected to the top of a mounting frame, and a first lead screw is rotatably connected to the top of the mounting frame. The first lead screw passes through the movable frame and is connected to the movable frame through a ball nut pair. Welding robots are fixedly connected to both ends of the movable frame.

[0009] A clamping frame is provided at the bottom of the mounting frame, and a movable part is provided between the clamping frame and the mounting frame. Side frames are fixedly connected to both ends of the clamping frame, and clamping parts for fixing plates are provided on the outside of the clamping frame.

[0010] A movable block is slidably connected inside the side frame, and a second lead screw is rotatably connected inside the side frame. The second lead screw passes through the movable block and is connected to the movable block through a ball nut pair. Locking mechanisms are fixedly connected to both sides of the movable block. The locking mechanisms include multiple locking parts for reinforcing between the plates and adjusting parts for adjusting the spacing.

[0011] As a further aspect of the present invention: the adjusting component includes a fourth hydraulic rod, which is fixedly connected to the outside of the moving block, and a connecting block is fixedly connected to the telescopic end of the fourth hydraulic rod. Two first support plates are rotatably connected to the bottom of the moving block and the outside of the connecting block, and multiple sets of second support plates are arranged between the two opposing first support plates. Each set of second support plates consists of two plates, which are arranged crosswise and rotatably connected by a connecting shaft. The two outermost sets of second support plates are rotatably connected to the first plates respectively, and the other second support plates are rotatably connected end to end in sequence.

[0012] As a further embodiment of the present invention: the adjusting component further includes a fixing plate, which is fixedly connected to the outside of the connecting block, and a fifth hydraulic rod is fixedly connected to the outside of the fixing plate. The telescopic end of the fifth hydraulic rod is fixedly connected to a guide shaft, and a guide plate is fixedly connected to the top of the fifth hydraulic rod. The guide plate passes through the moving block and is slidably connected to the moving block.

[0013] As a further aspect of the present invention: the locking component includes multiple fixing discs, which are respectively fixedly connected to the outside of multiple connecting shafts, and a first connecting cylinder is fixedly connected to one side of the fixing disc. A first sliding rod is provided inside the first connecting cylinder, which passes through the first connecting cylinder and is slidably connected to the first connecting cylinder. A first spring is sleeved on the outside of the first sliding rod, and a first electromagnet is fixedly connected to one end of the first sliding rod. When the first electromagnet is energized, it magnetically attracts the plate.

[0014] As a further embodiment of the present invention: the locking component further includes a fixing rod, which is fixedly connected to the outside of the fixing plate. One end of the fixing rod is fixedly connected to a second connecting frame. A sliding plate is slidably connected inside the first support plate. A second sliding rod is fixedly connected to one side of the sliding plate. The second sliding rod passes through the second connecting frame and is slidably connected to the second connecting frame. One end of the second sliding rod is fixedly connected to a second electromagnet. When the second electromagnet is energized, it magnetically attracts the steel. A pressure sensor is provided on the outside of the second electromagnet for real-time monitoring of the displacement changes of the plate during the welding process. A second spring is sleeved on the outside of the second sliding rod. A limit plate is slidably connected to the outside of the second connecting frame. The limit plate is slidably connected to the outside of the guide plate.

[0015] As a further embodiment of the present invention: a storage cylinder is fixedly connected to the top of the moving block, the storage cylinder is filled with liquid, a main pipe is fixedly connected to the outside of the storage cylinder, a plurality of branch pipes are fixedly connected to the outside of the main pipe, the branch pipes are connected to one end of the second connecting frame, and a control valve is provided on the outside of the main pipe.

[0016] As a further aspect of the present invention: Mounting plates are fixedly connected to the outer sides of both movable blocks. A rotating rod is rotatably connected inside the mounting plate. A sliding groove is provided on the outer side of the rotating rod. Two movable side plates are slidably connected to the outer side of the rotating rod. A take-up roller is rotatably connected to one side of each movable side plate. The take-up roller is sleeved on the outer side of the rotating rod, and a protrusion is fixedly connected inside the take-up roller. A grinding belt is tensioned and circumferentially connected between the take-up roller and the take-up roller on the other rotating rod. A first bidirectional lead screw is rotatably connected inside the mounting plate. The first bidirectional lead screw passes through the two movable side plates and is connected to the movable side plates via a ball bearing nut pair. When the first bidirectional lead screw rotates, the two movable side plates move relative to each other.

[0017] As a further embodiment of the present invention: a mounting side plate is fixedly connected to one side of the movable side plate, a rubber sleeve is provided at the bottom of the mounting side plate, the rubber sleeve is located outside the grinding belt, and a grinding block is fixedly connected to the outside of the rubber sleeve. A third electromagnet is fixedly connected to one side of the rubber sleeve, and a flexible metal sheet is provided on one side of the rubber sleeve. When the third electromagnet is energized, it attracts the flexible metal sheet, clamping it to the outside of the grinding belt. A second bidirectional lead screw is rotatably connected to one side of the movable side plate. Two baffles are connected to the outside of the second bidirectional lead screw through a ball nut pair. When the second bidirectional lead screw rotates, the baffles move relative to each other.

[0018] As a further aspect of the present invention: the clamping member includes two second clamping plates disposed on the inner side of the clamping frame, two second hydraulic rods are fixedly connected to the outer side of the clamping frame, the telescopic ends of the second hydraulic rods are fixedly connected to the second clamping plates, a third hydraulic rod is fixedly connected to the bottom of the side frame, and the telescopic ends of the third hydraulic rods are fixedly connected to the third clamping plate.

[0019] As a further aspect of the present invention: the movable component includes a third lead screw, which is rotatably connected to the bottom of the mounting frame, and a movable slider is connected to the outside of the mounting frame via a ball nut pair. The movable slider is slidably connected to the mounting frame, and a sixth hydraulic rod is fixedly connected to the bottom of the movable slider. The telescopic end of the sixth hydraulic rod is fixedly connected to the clamping frame.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. The plate is clamped by the clamping components inside the clamping frame, and the moving component moves the plate into the interior of the I-beam, where it fits snugly against the interior of the I-beam. By activating the adjusting components in the locking mechanism on both sides of the moving block, the distribution of multiple locking components is adjusted so that the locking components are evenly distributed on the outside of the plate. The locking components then fix the plate to the I-beam, ensuring stability during welding and preventing the plate from moving during welding, which could result in incomplete welding. The precise clamping and locking functions prevent incomplete welding or displacement of the plate, ensuring stable and reliable welding quality.

[0022] 2. When the second sliding rod moves, it pulls the sliding plate to move inside the second connecting frame. At this time, the control valve on the outside of the main pipe is opened, and the liquid inside the storage cylinder flows into the second connecting frame through the main pipe and branch pipe, filling the space between the sliding plate and the second connecting frame. After closing the control valve, the second sliding rod remains stable after moving. It is attracted to the plate and I-beam by the first and second electromagnets, achieving multi-point connection and ensuring that the plate does not shift during the welding process. At the same time, a pressure sensor is set on the outside of the second electromagnet to monitor pressure changes in real time. When a large change occurs, the current is increased to improve the magnetic attraction effect of the second and first electromagnets.

[0023] 3. After welding is completed, the third electromagnet on the outside of the rubber sleeve is energized, causing the third electromagnet to attract the flexible metal sheet. At this time, the grinding belt is clamped, and the two baffles are moved away from each other by the second bidirectional screw, so that the rubber sleeve can move together with the grinding belt, and the grinding block grinds the weld marks, thereby achieving pretreatment before welding and weld mark treatment after welding. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the clamping component structure of the present invention;

[0027] Figure 3 This is a schematic diagram of the clamping frame structure of the present invention;

[0028] Figure 4 This is a schematic diagram of the adjusting component structure of the present invention;

[0029] Figure 5 This is the present invention. Figure 4 A magnified structural diagram of part A;

[0030] Figure 6 This is a schematic diagram of the locking mechanism structure of the present invention;

[0031] Figure 7 This is a schematic diagram of the moving block structure of the present invention;

[0032] Figure 8 This is a schematic diagram of the mounting plate structure of the present invention;

[0033] Figure 9 This is a schematic diagram of the rotating rod structure of the present invention;

[0034] Figure 10 This is a schematic diagram of the mounting side plate structure of the present invention.

[0035] In the diagram: 1. Fixed frame; 101. Conveying device; 102. First hydraulic rod; 103. First clamping plate; 2. Mounting frame; 3. Moving frame; 301. Welding robot; 302. First lead screw; 4. Clamping frame; 401. Side frame; 402. Second hydraulic rod; 403. Second clamping plate; 404. Third clamping plate; 405. Third hydraulic rod; 406. Third lead screw; 407. Moving slider; 408. Sixth hydraulic rod; 5. Moving block; 501. Second lead screw; 502. Fourth hydraulic rod; 503. Connecting block; 504. Fixed plate; 505. Fifth hydraulic rod; 506. Guide shaft; 601. First support plate; 602. Second support plate; 603. Connecting shaft; 604. Fixed plate; 6 05. First connecting cylinder; 606. First sliding rod; 607. First electromagnet; 608. First spring; 609. Fixed rod; 610. Second connecting frame; 611. Second sliding rod; 612. Second electromagnet; 613. Sliding plate; 614. Second spring; 615. Limiting plate; 616. Guide plate; 701. Storage cylinder; 702. Main pipe; 703. Branch pipe; 8. Mounting plate; 800. Grinding belt; 801. Rotating rod; 802. Take-up roller; 8021. Protrusion; 803. Moving side plate; 804. First bidirectional lead screw; 805. Rubber sleeve; 8051. Third electromagnet; 8052. Grinding block; 806. Second bidirectional lead screw; 8061. Baffle; 808. Mounting side plate. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0037] In the description of this invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0038] like Figures 1 to 10 As shown, a preliminary processing and welding equipment for triangular bracket steel for highway bridges includes the following embodiments:

[0039] The system includes a fixed frame 1, with a mounting frame 2 fixedly connected to the top of the fixed frame 1. A conveying device 101 for transporting the steel is installed inside the fixed frame 1. First hydraulic rods 102 are installed on both sides of the fixed frame 1, and first clamping plates 103 are fixedly connected to the telescopic ends of the first hydraulic rods 102. When the steel section is transported to the designated position by the conveying device 101, the first hydraulic rods 102 push the first clamping plates 103 to clamp the steel section in a centered position. The system also includes:

[0040] The movable frame 3 is slidably connected to the top of the mounting frame 2, and the top of the mounting frame 2 is rotatably connected to the first lead screw 302. The first lead screw 302 passes through the movable frame 3 and is connected to the movable frame 3 through a ball nut pair. Welding robots 301 are fixedly connected to both ends of the movable frame 3.

[0041] The clamping frame 4 is located at the bottom of the mounting frame 2, and a movable part is provided between the clamping frame 4 and the mounting frame 2. Both ends of the clamping frame 4 are fixedly connected to the side frame 401, and a clamping part for fixing the plate is provided on the outside of the clamping frame 4.

[0042] The side frame 401 has a sliding block 5 inside, and a second lead screw 501 is rotatably connected inside the side frame 401. The second lead screw 501 passes through the moving block 5 and is connected to the moving block 5 through a ball nut pair. Both sides of the moving block 5 are fixedly connected to a locking mechanism, which includes multiple locking parts for reinforcing between the plates and an adjusting part for adjusting the spacing.

[0043] In practical implementation, during the initial processing of triangular bracket steel for highway bridges, I-beams are often used for individual steel profiles. To enhance overall strength, multiple plates are welded to the inside of the I-beams. However, during welding, incomplete bonding between the plates can lead to incomplete welds. Therefore, in this solution, when the I-beams are transported to the designated position, the plates to be welded are placed inside the clamping frame 4. The plates are clamped by the clamping components inside the clamping frame 4, and the moving component moves the plates into the interior of the I-beams, where they are bonded. The adjusting components in the locking mechanisms on both sides of the moving block 5 are activated to adjust the distribution of multiple locking components, ensuring that the locking components are evenly distributed on the outside of the plates. The locking components then fix the plates to the I-beams, ensuring stability during welding and preventing movement of the plates, which could result in incomplete welds. The precise clamping and locking functions prevent incomplete welds or displacement of the plates, ensuring stable and reliable welding quality.

[0044] In this embodiment, the clamping member includes two second clamping plates 403 disposed on the inner side of the clamping frame 4, and two second hydraulic rods 402 fixedly connected to the outer side of the clamping frame 4. The telescopic ends of the second hydraulic rods 402 are fixedly connected to the second clamping plates 403. A third hydraulic rod 405 is fixedly connected to the bottom of the side frame 401, and a third clamping plate 404 is fixedly connected to the telescopic end of the third hydraulic rod 405.

[0045] The movable component includes a third lead screw 406, which is rotatably connected to the bottom of the mounting frame 2. A movable slider 407 is connected to the outside of the mounting frame 2 via a ball nut pair. The movable slider 407 is slidably connected to the mounting frame 2. A sixth hydraulic rod 408 is fixedly connected to the bottom of the movable slider 407. The telescopic end of the sixth hydraulic rod 408 is fixedly connected to the clamping frame 4.

[0046] In practice, when clamping the plate, the third hydraulic rod 405 at the bottom of the side frame 401 drives the third clamping plate 404 to move through the telescopic end of the third hydraulic rod 405, thereby enabling the two third clamping plates 404 to clamp the plate in the center, ensuring that the plate can be accurately aligned with the I-beam.

[0047] Example 2: The adjusting component includes a fourth hydraulic rod 502, which is fixedly connected to the outside of the moving block 5. The telescopic end of the fourth hydraulic rod 502 is fixedly connected to a connecting block 503. The bottom of the moving block 5 and the outside of the connecting block 503 are rotatably connected to two first support plates 601. Multiple sets of second support plates 602 are arranged between the two opposing first support plates 601. Each set of second support plates 602 consists of two plates, which are arranged crosswise and rotatably connected by a connecting shaft 603. The two outermost sets of second support plates 602 are rotatably connected to the first support plates 601 respectively, and the other second support plates 602 are rotatably connected end to end in sequence.

[0048] The adjusting component also includes a fixing plate 504, which is fixedly connected to the outside of the connecting block 503. A fifth hydraulic rod 505 is fixedly connected to the outside of the fixing plate 504. A guide shaft 506 is fixedly connected to the telescopic end of the fifth hydraulic rod 505. A guide plate 616 is fixedly connected to the top of the fifth hydraulic rod 505. The guide plate 616 passes through the moving block 5 and is slidably connected to the moving block 5.

[0049] The locking component includes multiple fixing discs 604, which are respectively fixedly connected to the outside of multiple connecting shafts 603. A first connecting cylinder 605 is fixedly connected to one side of the fixing disc 604. A first sliding rod 606 is provided inside the first connecting cylinder 605. The first sliding rod 606 passes through the first connecting cylinder 605 and is slidably connected to the first connecting cylinder 605. A first spring 608 is sleeved on the outside of the first sliding rod 606. A first electromagnet 607 is fixedly connected to one end of the first sliding rod 606. When the first electromagnet 607 is energized, it magnetically attracts the plate.

[0050] In specific implementation, when the clamping frame 4 drives the plate to be inserted into the I-shaped steel through the clamping parts, the fourth hydraulic rod 502 is activated. The telescopic end of the fourth hydraulic rod 502 drives the connecting block 503 to descend, causing the second support plate 602 between the two first support plates 601 of the connecting block 503 and the moving block 5 to rotate crosswise around the connecting shaft 603. Then, the distribution of the connecting shaft 603 on the plate is adjusted according to the size of different plates. The connecting shaft 603 drives the fixed plate 604 to move on the plate. When it moves to the designated position, the first electromagnet 607 is energized. The first electromagnet 607 moves by magnetic force and compresses the first spring 608. At this time, the first electromagnet 607 is magnetically attracted to the plate, which can attract plates of different thicknesses.

[0051] The locking mechanism also includes a fixing rod 609, which is fixedly connected to the outside of the fixing plate 604. One end of the fixing rod 609 is fixedly connected to a second connecting frame 610. A sliding plate 613 is slidably connected inside the first support plate 601. A second sliding rod 611 is fixedly connected to one side of the sliding plate 613. The second sliding rod 611 passes through the second connecting frame 610 and is slidably connected to the second connecting frame 610. A second electromagnet 612 is fixedly connected to one end of the second sliding rod 611. When the second electromagnet 612 is energized, it magnetically attracts the steel. A pressure sensor is provided on the outside of the second electromagnet 612 to monitor the displacement changes of the plate during the welding process in real time. A second spring 614 is sleeved on the outside of the second sliding rod 611. A limit plate 615 is slidably connected to the outside of the second connecting frame 610. The limit plate 615 is slidably connected to the outside of the guide plate 616.

[0052] A storage cylinder 701 is fixedly connected to the top of the movable block 5. The storage cylinder 701 is filled with liquid. A main pipe 702 is fixedly connected to the outside of the storage cylinder 701. Multiple branch pipes 703 are fixedly connected to the outside of the main pipe 702. One end of the branch pipes 703 is connected to the second connecting frame 610. A control valve is provided on the outside of the main pipe 702.

[0053] In specific implementation, the second electromagnet 612 on the second connecting frame 610 at one end of the fixed rod 609 is also energized. At this time, the second electromagnet 612 pulls the second sliding rod 611 to move inside the second connecting frame 610 and compresses the second spring 614. Simultaneously, the second electromagnet 612 adheres to the inner wall of the I-beam. When the second sliding rod 611 moves, it pulls the sliding plate 613 to move inside the second connecting frame 610. At this time, the control valve outside the main pipe 702 is opened, and the liquid inside the storage cylinder 701 flows into the second connecting frame 701 through the main pipe 702 and the branch pipe 703. The material is filled inside the second connecting frame 610 and between the sliding plate 613 and the second connecting frame 610. After the control valve is closed, the second sliding rod 611 moves and remains stable. It is attracted to the plate and I-beam by the first electromagnet 607 and the second electromagnet 612 to achieve multi-point connection and ensure that the plate does not shift during the welding process. At the same time, a pressure sensor is set on the outside of the second electromagnet 612 to monitor the pressure change in real time. When a large value change occurs, the current is increased to improve the magnetic attraction effect of the second electromagnet 612 and the first electromagnet 607.

[0054] Its overall plan can be divided into:

[0055] Linked adsorption mechanism

[0056] When the second electromagnet 612 at the end of the fixed rod 609 is energized, a bidirectional force is generated:

[0057] Lateral adsorption force: directly attracts the inner wall of the I-shaped steel, forming a rigid contact;

[0058] Longitudinal traction force: The second spring 614 is compressed by the second slide rod 611, which causes the sliding plate 613 to move within the second connecting frame 610;

[0059] At this time, the first electromagnet 607 is simultaneously energized to attract the plate, forming a three-point positioning system: the inner wall of the I-shaped steel and the double sides of the plate.

[0060] Hydraulic damping stabilization system

[0061] After the control valve is opened, the coolant in the storage cylinder 701 is injected into the cavity between the sliding plate 613 and the second connecting frame 610 through the main pipe 702 and the branch pipe 703;

[0062] The liquid filling generates a hydraulic damping effect, suppressing the micro-displacement error caused by welding vibration and controlling it within ±0.05mm;

[0063] Dynamic adjustment module

[0064] The pressure sensor monitors the adsorption pressure of the second electromagnet 612 in real time. When it detects:

[0065] Pressure fluctuation > 15% of the set value: Automatically increase current intensity by 20% to 30%.

[0066] Continuous abnormal vibration: Triggers welding robot 301 to pause and trigger an alarm.

[0067] Example 3: Mounting plates 8 are fixedly connected to the outer sides of both moving blocks 5. A rotating rod 801 is rotatably connected inside the mounting plate 8. A sliding groove is provided on the outer side of the rotating rod 801. Two moving side plates 803 are slidably connected to the outer side of the rotating rod 801. A take-up roller 802 is rotatably connected to one side of the moving side plate 803. The take-up roller 802 is sleeved on the outer side of the rotating rod 801, and a protrusion 8021 is fixedly connected inside the take-up roller 802. A grinding belt 800 is tensioned and connected to the take-up roller 802 on the other rotating rod 801. A first bidirectional screw 804 is rotatably connected inside the mounting plate 8. The first bidirectional screw 804 passes through the two moving side plates 803 and is connected to the moving side plates 803 through a ball nut pair. When the first bidirectional screw 804 rotates, the two moving side plates 803 move relative to each other.

[0068] In practical implementation, splicing is required before welding the plate and I-beam. If there are burrs or weld slag at the joint between the plate and the I-beam, it will inevitably affect the splicing and easily cause gaps during welding, leading to incomplete welds. Therefore, this solution fixes mounting plates 8 to both moving blocks 5. Inside the mounting plates 8 are two winding rollers 802, and a grinding belt 800 is wound between the two winding rollers 802. When the clamping parts on the clamping frame 4 clamp the plate, the grinding belt 800 is placed on the outside of the plate. By moving the plate closer to the I-beam, the grinding belt 800 is made to fit between the plate and the I-beam. A micro motor is set on the outside of the mounting plate 8 to drive the rotation. Rotating rod 801 drives the take-up roller 802 to rotate via a slide groove, causing the grinding belt 800 between the two take-up rollers 802 to grind the joint between the plate and the I-beam. After grinding, an external motor is started to drive the first bidirectional lead screw 804 to rotate. The first bidirectional lead screw 804 drives the two moving side plates 803 to move relative to each other, causing the two take-up rollers 802 to move the grinding belt 800 to both sides of the plate. Then, the welding robot 301 on the moving frame 3 performs welding on the plate and the I-beam. The bidirectional take-up grinding belt design can accurately remove burrs, oxide layers and welding slag at the joint between the plate and the I-beam, ensuring that the cleanliness of the spliced ​​surface meets the welding requirements.

[0069] In this embodiment: a mounting side plate 808 is fixedly connected to one side of the movable side plate 803. A rubber sleeve 805 is provided at the bottom of the mounting side plate 808. The rubber sleeve 805 is located outside the grinding belt 800, and a grinding block 8052 is fixedly connected to the outside of the rubber sleeve 805. A third electromagnet 8051 is fixedly connected to one side of the rubber sleeve 805. A flexible metal sheet is provided on one side of the rubber sleeve 805. When the third electromagnet 8051 is energized, it attracts the flexible metal sheet, clamping it to the outside of the grinding belt 800. A second bidirectional lead screw 806 is rotatably connected to one side of the movable side plate 803. Two baffles 8061 are connected to the outside of the second bidirectional lead screw 806 through a ball nut pair. When the second bidirectional lead screw 806 rotates, the baffles 8061 move relative to each other.

[0070] In specific implementation, as the grinding belt 800 moves with the take-up roller 802, the telescopic end of the fifth hydraulic rod 505 drives the guide shaft 506 to move to the outside of the plate. At this time, the grinding belt 800 is sleeved on the outside of the guide shaft 506, so that the grinding belt 800 forms a path consistent with the welding trajectory. After welding is completed, the third electromagnet 8051 on the outside of the rubber sleeve 805 is energized, so that the third electromagnet 8051 is attracted to the flexible metal sheet, thus clamping the grinding belt 800. At the same time, the second bidirectional screw 806 drives the two baffles 8061 to move away from each other, so that the rubber sleeve 805 can move together with the grinding belt 800, so that the grinding block 8052 can grind the weld marks, thereby achieving pretreatment before welding and weld mark treatment after welding.

[0071] It is worth noting that this device can also be used for welded plates inside the frame.

[0072] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0073] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, 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.

[0074] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A preliminary processing and welding equipment for triangular bracket steel for highway bridges, comprising a fixed frame (1), a mounting frame (2) fixedly connected to the top of the fixed frame (1), and a conveying device (101) for conveying is provided inside the fixed frame (1), characterized in that, Also includes: The movable frame (3) is slidably connected to the top of the mounting frame (2), and the top of the mounting frame (2) is rotatably connected to a first lead screw (302). The first lead screw (302) passes through the movable frame (3) and is connected to the movable frame (3) through a ball nut pair. Welding robots (301) are fixedly connected to both ends of the movable frame (3). A clamping frame (4) is provided at the bottom of the mounting frame (2), and a movable part is provided between the clamping frame (4) and the mounting frame (2). Both ends of the clamping frame (4) are fixedly connected to a side frame (401), and a clamping part for fixing the plate is provided on the outside of the clamping frame (4). A movable block (5) is slidably connected inside the side frame (401), and a second lead screw (501) is rotatably connected inside the side frame (401). The second lead screw (501) passes through the movable block (5) and is connected to the movable block (5) through a ball nut pair. Locking mechanisms are fixedly connected to both sides of the movable block (5). The locking mechanisms include multiple locking parts for reinforcing between the plates and adjusting parts for adjusting the spacing. The adjusting component includes a fourth hydraulic rod (502), which is fixedly connected to the outside of the moving block (5). The telescopic end of the fourth hydraulic rod (502) is fixedly connected to a connecting block (503). The bottom of the moving block (5) and the outside of the connecting block (503) are rotatably connected to two first support plates (601). Multiple sets of second support plates (602) are arranged between the two opposite first support plates (601). Each set of second support plates (602) consists of two plates. The two second support plates (602) are arranged crosswise and rotatably connected by a connecting shaft (603). The two outermost sets of second support plates (602) are rotatably connected to the first support plates (601) respectively. The other second support plates (602) are rotatably connected end to end in sequence. Mounting plates (8) are fixedly connected to the outer sides of both movable blocks (5). A rotating rod (801) is rotatably connected inside the mounting plate (8). A sliding groove is provided on the outer side of the rotating rod (801). Two movable side plates (803) are slidably connected to the outer side of the rotating rod (801). A take-up roller (802) is rotatably connected to one side of the movable side plate (803). The take-up roller (802) is sleeved on the outer side of the rotating rod (801), and a protrusion is fixedly connected inside the take-up roller (802). (8021), a grinding belt (800) is tensioned and connected to the winding roller (802) on another rotating rod (801). A first bidirectional screw (804) is rotatably connected inside the mounting plate (8). The first bidirectional screw (804) passes through two movable side plates (803) and is connected to the movable side plates (803) through a ball nut pair. When the first bidirectional screw (804) rotates, the two movable side plates (803) move relative to each other. A mounting side plate (808) is fixedly connected to one side of the movable side plate (803). A rubber sleeve (805) is provided at the bottom of the mounting side plate (808). The rubber sleeve (805) is located outside the grinding belt (800), and a grinding block (8052) is fixedly connected to the outside of the rubber sleeve (805). A third electromagnet (8051) is fixedly connected to one side of the rubber sleeve (805). A flexible metal sheet is provided on one side of the rubber sleeve (805). When the third electromagnet (8051) is energized, it attracts the flexible metal sheet and clamps it to the outside of the grinding belt (800). A second bidirectional lead screw (806) is rotatably connected to one side of the movable side plate (803). Two baffles (8061) are connected to the outside of the second bidirectional lead screw (806) through a ball nut pair. When the second bidirectional lead screw (806) rotates, the baffles (8061) move relative to each other.

2. The preliminary processing and welding equipment for triangular bracket steel for highway bridges according to claim 1, characterized in that: The adjusting component also includes a fixing plate (504), which is fixedly connected to the outside of the connecting block (503). A fifth hydraulic rod (505) is fixedly connected to the outside of the fixing plate (504). A guide shaft (506) is fixedly connected to the telescopic end of the fifth hydraulic rod (505). A guide plate (616) is fixedly connected to the top of the fifth hydraulic rod (505). The guide plate (616) passes through the moving block (5) and is slidably connected to the moving block (5).

3. The preliminary processing and welding equipment for triangular bracket steel for highway bridges according to claim 2, characterized in that: The locking component includes multiple fixing discs (604), which are respectively fixedly connected to the outside of multiple connecting shafts (603). A first connecting cylinder (605) is fixedly connected to one side of the fixing disc (604). A first sliding rod (606) is provided inside the first connecting cylinder (605). The first sliding rod (606) passes through the first connecting cylinder (605) and is slidably connected to the first connecting cylinder (605). A first spring (608) is sleeved on the outside of the first sliding rod (606). A first electromagnet (607) is fixedly connected to one end of the first sliding rod (606). When the first electromagnet (607) is energized, it magnetically attracts the plate.

4. The preliminary processing and welding equipment for triangular bracket steel for highway bridges according to claim 3, characterized in that: The locking component also includes a fixing rod (609), which is fixedly connected to the outside of the fixing plate (604). One end of the fixing rod (609) is fixedly connected to a second connecting frame (610). A sliding plate (613) is slidably connected inside the first support plate (601). A second sliding rod (611) is fixedly connected to one side of the sliding plate (613). The second sliding rod (611) passes through the second connecting frame (610) and is slidably connected to the second connecting frame (610). One end of the second sliding rod (611) is fixedly connected to a second electromagnet (612). When the second electromagnet (612) is energized, it magnetically attracts the steel. A pressure sensor is provided on the outside of the second electromagnet (612) for real-time monitoring of the displacement change of the plate during the welding process. A second spring (614) is sleeved on the outside of the second sliding rod (611). A limit plate (615) is slidably connected to the outside of the second connecting frame (610). The limit plate (615) is slidably connected to the outside of the guide plate (616).

5. The preliminary processing and welding equipment for triangular bracket steel for highway bridges according to claim 4, characterized in that: The top of the movable block (5) is fixedly connected to a storage cylinder (701), which is filled with liquid. The outside of the storage cylinder (701) is fixedly connected to a main pipe (702), and the outside of the main pipe (702) is fixedly connected to multiple branch pipes (703). The branch pipes (703) are connected to one end of the second connecting frame (610), and a control valve is provided on the outside of the main pipe (702).

6. The preliminary processing and welding equipment for triangular bracket steel for highway bridges according to claim 1, characterized in that: The clamping component includes two second clamping plates (403) disposed on the inner side of the clamping frame (4). Two second hydraulic rods (402) are fixedly connected to the outer side of the clamping frame (4). The telescopic ends of the second hydraulic rods (402) are fixedly connected to the second clamping plates (403). A third hydraulic rod (405) is fixedly connected to the bottom of the side frame (401). The telescopic end of the third hydraulic rod (405) is fixedly connected to the third clamping plate (404).

7. The preliminary processing and welding equipment for triangular bracket steel for highway bridges according to claim 1, characterized in that: The movable component includes a third lead screw (406), which is rotatably connected to the bottom of the mounting frame (2). A movable slider (407) is connected to the outside of the mounting frame (2) via a ball nut pair. The movable slider (407) is slidably connected to the mounting frame (2). A sixth hydraulic rod (408) is fixedly connected to the bottom of the movable slider (407). The telescopic end of the sixth hydraulic rod (408) is fixedly connected to the clamping frame (4).

Images