Automatic welding device for steel structure production

Abstract

This invention discloses an automated welding device for steel structure production, including a fixed frame with a moving unit at its top; and a welding unit mounted on the moving unit, including a support frame and a welding torch installed at the bottom of the support frame. This invention uses a flux output unit composed of a material bin, a separation mechanism, and a double-discharge component. It can classify recycled residual flux, retaining reusable flux, which is then further separated into fine and coarse materials for separate storage. The double-discharge component can sequentially output the flux in layers, forming a layered structure of fine material at the bottom and coarse material at the top. The fine material at the bottom fully fills the weld gap space, tightly wraps the welding wire end, and strictly prevents air intrusion. The coarse material at the top forms a stable protective slag shell, enhancing insulation and permeability, and smoothly expelling arc gases and water vapor. This effectively avoids defects such as incomplete penetration, incomplete fusion, open welds, and voids, greatly improving weld formation quality and welding reliability.

Description

Technical Field

[0001] This invention relates to the field of steel structure welding technology, and in particular to an automated welding device for steel structure production. Background Technology

[0002] Steel structures are one of the main types of building structures, primarily composed of steel beams, steel columns, steel trusses, and other components made of shaped steel and steel plates. In steel structures, the various components or parts are connected by welds, bolts, or rivets. Steel structures are characterized by high strength, light weight, strong deformation capacity, good toughness, and high reliability. Applying steel structures in construction projects can effectively improve building performance, save construction costs, and replace concrete structures with steel structures, reducing the use of sand, stone, and cement, thus mitigating the damage to non-renewable resources.

[0003] Currently, submerged arc welding is one of the most widely used welding methods in steel structure manufacturing, offering advantages such as stable welding quality, high welding productivity, and minimal arc light and fumes. During welding, flux is first laid on the joint to be welded. Then, the welding wire from the welding torch head extends below the flux layer to ignite the arc. The welding wire and the base material melt and cool to form a weld, thus achieving the welded connection of the steel structure components. Furthermore, since a large amount of unmelted flux remains at the weld after welding, it often needs to be cleaned promptly to reduce the possibility of waste caused by solid flux adhering to molten flux. However, in order to improve flux utilization, existing welding equipment often simply filters the recovered flux and reuses it. But after welding or during long-term recycling, the flux particles inevitably become uneven in size and mixed in particle size due to factors such as melting under heat and mutual friction and collision. This makes it easy for the flux to not fill the gaps tightly when it is recycled and laid on the weld, and it cannot tightly wrap the welding wire, which greatly affects the weld formation quality and welding reliability.

[0004] Therefore, this application proposes an automated welding device for steel structure production to address the above-mentioned shortcomings. Summary of the Invention

[0005] The purpose of this invention is to provide an automated welding device for steel structure production to address the aforementioned shortcomings in the technology.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automated welding device for steel structure production, comprising: A fixed frame with a movable unit at its top; A welding unit, which is mounted on a movable unit, includes a support frame and a welding torch mounted on the bottom of the support frame; The material suction unit, which is mounted on a support frame, is used to recover residual flux from the welding operation area; The flux output unit, located on one side of the support frame, includes a material bin, a separation mechanism, and a dual-discharge component. The top of the material bin is equipped with a feed pipe connected to the suction unit, and its bottom is equipped with a partition to divide the inside of the material bin into two independent storage chambers. The separation mechanism includes a pre-separation component and a fine separation component arranged vertically within the material bin. The pre-separation component is used to pre-separate the recycled flux, and the fine separation component is used to classify the qualified flux after pre-separation into coarse and fine grades, and can introduce the coarse and fine materials into the corresponding two storage chambers respectively. The dual-discharge component is connected to the two storage chambers respectively to control the sequential layering and output of fine and coarse materials.

[0007] As a further embodiment of the present invention, the dual-discharge component includes a fine material cylinder and a coarse material cylinder. The top ends of the fine material cylinder and the coarse material cylinder are respectively provided with discharge pipes that communicate with two storage chambers, and their bottom ends face the welding operation area. The ends of the discharge pipe and the inlet pipe are provided with control valves. Baffles are symmetrically arranged on both sides inside the fine material cylinder and the coarse material cylinder, and an adjustment mechanism is provided between them to adjust the distance between the baffles to control the spread range of the flux.

[0008] As a further embodiment of the present invention, the moving unit includes an X-axis moving guide rail, a Y-axis moving guide rail and a Z-axis moving guide rail, wherein the X-axis moving guide rail is disposed on the top of the fixed frame, the Y-axis moving guide rail is disposed on the top side of the X-axis moving guide rail via a slide block, and the Z-axis moving guide rail is disposed on the side wall of the Y-axis moving guide rail via a slide block. The moving unit can drive the welding unit to perform three-dimensional movement.

[0009] As a further embodiment of the present invention, the suction unit includes a negative pressure suction pipe and a gas separator. The bottom end of the negative pressure suction pipe corresponds to the welding operation area of ​​the welding gun and is used to recover the residual flux after welding. Its top end is connected to the inlet of the gas separator. The top end of the gas separator is connected to a negative pressure gas source through a pipeline, and its bottom end is provided with a flux outlet connected to the inlet pipe.

[0010] As a further embodiment of the present invention, the pre-separation component includes a conveying cylinder that extends through the top of the material box, a plurality of filter holes are provided on the bottom side of the conveying cylinder, and a spiral conveying component is provided on the conveying cylinder. The inlet of the conveying cylinder is connected to the feed pipe, and a slag collection component is provided at the outlet of the conveying cylinder. The screw conveyor assembly includes a fixed shaft rotatably connected inside the conveying cylinder, the outer wall of the fixed shaft is provided with screw blades, and a first drive motor is fixed at one end of the conveying cylinder, the output end of the first drive motor is connected to the fixed shaft; The slag collection assembly includes a waste bin located on the side wall of the material bin, and a discharge pipe is provided between the top of the waste bin and the discharge port of the conveying cylinder. The fine separation component includes a screen plate inclinedly arranged in the middle of the material box. The bottom end of the screen plate is fixedly connected to the top end of the partition plate, and the screen plate is located above the fine material cylinder. A guide component is provided between the screen plate and the conveying cylinder to receive the flux filtered out of the filter holes and guide the flux to the top end of the screen plate according to the cumulative amount of flux in batches.

[0011] As a further embodiment of the present invention, the material guide includes a material guide plate and a plurality of elastic reset members. The material guide plate is movably connected to one side of the material box relative to the screen plate, and the material guide plate is located between the screen plate and the conveying cylinder. The plurality of elastic reset members are disposed between the material guide plate and the inner wall of the material box. The top side of the guide plate is inclinedly provided with a spring plate facing the filter hole, and an arc-shaped spring piece is provided between the spring plate and the guide plate.

[0012] As a further embodiment of the present invention, the elastic reset member is a spring, and at least one limiting block is provided on the top of the screen plate to prevent the guide plate from contacting the screen plate.

[0013] As a further aspect of the present invention, the adjusting mechanism includes: A positioning frame is set between the tops of the fine material cylinder and the coarse material cylinder, and a slide is provided on the side of the top of the fine material cylinder and the coarse material cylinder near the discharge pipe. A slider is slidably connected to both ends of the two slides. Two support seats are symmetrically arranged between the tops of the fine material cylinder and the coarse material cylinder. The top of the slider is fixedly connected to the support seat, and the bottom of the slider is fixedly connected to the baffle. The top of the positioning frame is rotatably connected to a connecting shaft via a bearing. A curved arm is fixedly connected to the top of the connecting shaft. Connecting arms are symmetrically hinged at both ends of the curved arm. The ends of the two connecting arms are movably connected to two support seats respectively. The driving component includes a second driving motor, the output end of which is connected to a connecting shaft.

[0014] As a further embodiment of the present invention, the side wall of the material box is provided with an opening near the lower part of the screen plate, and a feed hopper is provided outside the opening.

[0015] As a further aspect of the present invention, the dual-discharge component is further provided with a cleanup mechanism, the cleanup mechanism comprising: The mounting frame is located on the outer side of the bottom end of the fine material cylinder. A support shaft is rotatably connected to the side wall of the mounting frame via a bearing. A brush handle is provided on the bottom side of the support shaft, and a guide frame is fixed to the top end of the support shaft. A third drive motor is provided on the side wall of the mounting frame. A rotating handle is provided on the output end of the third drive motor near the upper part of the support shaft. A guide post is fixed to one end of the rotating handle relative to the output shaft of the third drive motor. The guide post is slidably fitted inside the guide frame.

[0016] The technical effects and advantages provided by the present invention in the above technical solution are as follows: This invention comprises a flux output unit consisting of a material bin, a separation mechanism, and a dual-discharge component. Combined with a negative pressure suction pipe, residual flux is recovered. The recovered residual flux is classified, waste is removed, and reusable flux is retained. The reusable flux is further separated into fine and coarse materials for separate storage. The dual-discharge component outputs the flux in layers, forming a layered structure with a lower layer of fine material and an upper layer of coarse material. The lower layer of fine material fully fills the weld gap, tightly wraps the welding wire end, and strictly prevents air intrusion. The upper layer of coarse material forms a stable protective slag shell, enhancing insulation and permeability, and smoothly expelling arc gases and water vapor. This effectively avoids defects such as incomplete penetration, lack of fusion, open welds, and voids, greatly improving weld formation quality and welding reliability. By setting up a separation mechanism consisting of a pre-separation component and a fine separation component, the pre-separation component can quickly separate qualified flux from waste, while the fine separation component can classify qualified flux into coarse and fine grades. With the material guide on the fine separation component, it can not only accurately guide the qualified flux after pre-separation to ensure sufficient screening, but also automatically realize batch quantitative material guidance, avoiding the problem of excessive screen plate sorting load and incomplete coarse and fine separation caused by continuous and uninterrupted falling flux, effectively improving the flux grading accuracy and screening stability. By setting baffles and adjusting distance mechanisms on the double-discharge component, the spacing between the two sets of baffles in the fine and coarse flux cylinders can be adjusted synchronously, thereby controlling the discharge width range of the upper and lower flux layers. This ensures that the flux evenly covers the weld area, avoiding flux waste due to excessively wide distribution and insufficient weld protection due to excessively narrow distribution, effectively improving welding quality and flux utilization. Furthermore, by setting a cleaning mechanism on the fine flux cylinder, as the double-discharge component moves to distribute the flux, the brush at the bottom of the brush handle of the cleaning mechanism can extend vertically into the weld and swing left and right to clean and remove dust, iron filings, and other impurities from the weld bevel. This ensures that the weld area is clean and free of impurities before welding, preventing impurities from mixing into the molten pool and causing welding defects such as porosity and slag inclusions, thus providing a good welding foundation for subsequent welding processes. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is one of the overall structural schematic diagrams of the present invention; Figure 2 This is the second schematic diagram of the overall structure of the present invention; Figure 3 This is one of the structural schematic diagrams showing the connection between the support frame and the material box in this invention; Figure 4 This is the second schematic diagram of the connection between the support frame and the material box of the present invention; Figure 5 This is a schematic diagram of the internal structure of the material box of the present invention; Figure 6 This is a schematic diagram of the internal structure of the conveying cylinder and the hopper of the present invention; Figure 7 This is a schematic diagram of the structure of the guide plate of the present invention when it is deflected by force; Figure 8 This is a schematic diagram of the structure of the dual-discharge component of the present invention; Figure 9 This is a longitudinal sectional view of the dual-discharge component of the present invention; Figure 10 This is a schematic diagram of the internal structure of the fine material cylinder of the present invention; Figure 11 This is a schematic diagram of the structure of the support base during telescopic transformation of the present invention; Figure 12 This is a schematic diagram of the impurity removal mechanism of the present invention; Figure 13 This is a schematic diagram of the structure of the brush handle of the present invention when it swings.

[0018] In the diagram: 1. Fixed frame; 2. Moving unit; 3. Support frame; 4. Welding torch; 5. Suction unit; 501. Negative pressure suction pipe; 502. Gas-material separator; 6. Material box; 601. Discharge pipe; 602. Feed pipe; 603. Feed hopper; 7. Conveying cylinder; 701. Filter hole; 702. Discharge pipe; 703. Waste box; 704. Fixed shaft; 705. Spiral blade; 706. First drive motor; 8. Partition plate; 801. Screen plate; 802. Limiting block; 9. Guide plate; 901. Spring; 902. Spring Plate; 903, Arc-shaped spring; 10, Double-discharge component; 1001, Fine material cylinder; 1002, Coarse material cylinder; 1003, Baffle; 1004, Slide rail; 1005, Slider; 1006, Support base; 1007, Connecting shaft; 1008, Crank arm; 1009, Connecting arm; 1010, Positioning frame; 1011, Second drive motor; 11, Mounting frame; 1101, Support shaft; 1102, Brush handle; 1103, Guide frame; 1104, Guide post; 1105, Rotary handle; 1106, Third drive motor. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solutions of the present invention, 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.

[0020] like Figures 1-2 As shown, the present invention proposes an automated welding device for steel structure production, including a fixed frame 1, a moving unit 2, a welding unit, a material suction unit 5, and a flux output unit. The moving unit 2 is located at the top of the fixed frame 1, the welding unit is located on the moving unit 2, the material suction unit 5 is located on the support frame 3 for recovering residual flux in the welding operation area, and the flux output unit is located on one side of the support frame 3.

[0021] In one specific embodiment of the present invention, the welding unit includes a support frame 3 and a welding torch 4 installed at the bottom of the support frame 3; the moving unit 2 includes an X-axis moving guide rail, a Y-axis moving guide rail and a Z-axis moving guide rail, wherein the X-axis moving guide rail is located on the top of the fixed frame 1, the Y-axis moving guide rail is located on the top side of the X-axis moving guide rail via a slide, and the Z-axis moving guide rail is located on the side wall of the Y-axis moving guide rail via a slide. The moving unit 2 can drive the welding unit to perform three-dimensional movement. Based on this, the X-axis moving guide rail can drive the Y-axis moving guide rail to move laterally along a straight line, the Y-axis moving guide rail can drive the Z-axis moving guide rail to move longitudinally along a straight line, and the Z-axis moving guide rail can drive the support frame 3 to rise and fall vertically along a straight line. Thus, the position adjustment and movement operation of the welding unit in three-dimensional space can be realized, meeting the automated welding operation requirements of steel structures of different specifications.

[0022] It should be noted that the welding torch 4 is a submerged arc welding torch, which is also equipped with a wire feeding structure. This structure is existing technology, and its specific installation and connection methods are common knowledge in the field. The moving unit 2, including the X-axis moving guide rail, the Y-axis moving guide rail and the Z-axis moving guide rail, and its corresponding control system are all conventional technical means well known to those skilled in the art. They are not all shown in the figure and are not the focus of the improvement of this invention. Therefore, they will not be described in detail.

[0023] like Figure 3 and Figure 4As shown, the suction unit 5 includes a negative pressure suction pipe 501 and a gas separator 502. The bottom end of the negative pressure suction pipe 501 corresponds to the welding operation area of ​​the welding gun 4 and is used to recover the residual flux after welding. Its top end is connected to the inlet of the gas separator 502. The top end of the gas separator 502 is connected to a negative pressure air source through a pipeline, and its bottom is provided with a flux outlet connected to the inlet pipe 602. The negative pressure air source can be a negative pressure fan or a vacuum pump. Through the continuous suction of the negative pressure air source, a negative pressure environment can be formed in the gas separator 502, thereby enabling the negative pressure suction pipe 501 to generate suction. The gas separator 502 can be a cyclone separator or other conventional equipment in the field to achieve efficient separation of the suction flux and the airflow. The separated solid flux can be discharged from the flux outlet at the bottom, while the airflow is discharged from the negative pressure air source interface at the top.

[0024] like Figures 3-8 As shown, the flux output unit includes a material bin 6, a separation mechanism, and a double-discharge component 10. The top of the material bin 6 is equipped with a feed pipe 602 connected to the suction unit 5, and its bottom is equipped with a partition 8 to divide the interior of the material bin 6 into two independent storage chambers: a fine material chamber and a coarse material chamber. The partition 8 can have an irregular shape to adjust the internal space of the two storage chambers as needed. The separation mechanism includes a pre-separation component and a fine separation component arranged vertically within the material bin 6. The pre-separation component is used to pre-separate the recycled flux, and the fine separation component is used to separate the qualified flux after pre-separation. The flux is classified into coarse and fine grades, and the coarse and fine materials are introduced into two corresponding storage chambers respectively. The dual discharge component 10 is connected to the two storage chambers respectively to control the sequential output of fine and coarse materials. Specifically, the dual discharge component 10 includes a fine material cylinder 1001 and a coarse material cylinder 1002. The top of the fine material cylinder 1001 and the coarse material cylinder 1002 are respectively provided with discharge pipes 601 connected to the two storage chambers, and their bottom ends are facing the welding operation area. The ends of the discharge pipe 601 and the inlet pipe 602 are provided with control valves. The pipelines can be opened or closed by the control valves to control the feeding and discharging of materials.

[0025] In one specific embodiment of the present invention, the pre-separation component includes a conveying cylinder 7 that extends through the top of the material box 6. The bottom side of the conveying cylinder 7 is provided with a plurality of filter holes 701. The aperture size of the filter holes 701 is such that it allows qualified flux particles that meet the usage requirements to pass through, while intercepting large particles such as slag and clumps, ensuring thorough pre-separation. Those skilled in the art can design the aperture size of the filter holes 701 to meet the requirements based on the actual flux particle size specifications used. A spiral conveying component is provided on the conveying cylinder 7. In this embodiment, the spiral conveying component includes a fixed shaft 704 rotatably connected inside the conveying cylinder 7. The outer wall of the fixed shaft 704 is provided with spiral blades 705. A first drive motor is fixed to one end of the conveying cylinder 7. 706, the output end of the first drive motor 706 is connected to the fixed shaft 704. The first drive motor 706 drives the fixed shaft 704 to rotate, which in turn drives the spiral blade 705 to rotate, thereby enabling the spiral blade 705 to continuously advance the flux. The inlet of the conveying cylinder 7 is connected to the feed pipe 602, and the outlet of the conveying cylinder 7 is equipped with a slag collection assembly. Specifically, the slag collection assembly includes a waste bin 703 located on the side wall of the material bin 6. A discharge pipe 702 is provided between the top of the waste bin 703 and the outlet of the conveying cylinder 7. Large pieces of welding slag, clumps and other impurities are intercepted and transported to the outlet, and fall into the waste bin 703 through the discharge pipe 702, thereby realizing the separation and collection of qualified flux and waste.

[0026] After the suction unit 5 conveys the recycled flux into the conveying cylinder 7, the flux is driven to tumble and move forward in the conveying cylinder 7 by the screw conveyor assembly. When it passes through the filter hole 701 area, qualified flux particles that meet the usage requirements in the recycled flux can fall out through the filter hole 701, while larger slag, lumps and other large particle impurities are intercepted and continue to move forward under the drive of the screw conveyor assembly. Then, they fall into the waste bin 703 through the discharge pipe 702 to complete the collection. This can realize the separation of waste and usable flux in the recycled flux, and screen out qualified coarse and fine mixed flux to the next process.

[0027] The fine separation component includes a screen plate 801 inclinedly arranged in the middle of the inside of the material box 6. The bottom end of the screen plate 801 is fixedly connected to the top end of the partition plate 8, and the screen plate 801 is located above the fine material cylinder 1001. A guide is provided between the screen plate 801 and the conveying cylinder 7 to receive the flux filtered out by the filter hole 701 and guide the flux to the top end of the screen plate 801 according to the cumulative amount of flux in batches.

[0028] The material guide includes a material guide plate 9 and several elastic reset components. The material guide plate 9 is movably connected to the inside of the material box 6 on one side relative to the screen plate 801, and the material guide plate 9 is located between the screen plate 801 and the conveying cylinder 7. Several elastic reset components are arranged between the material guide plate 9 and the inner wall of the material box 6. The top side of the guide plate 9 is inclinedly provided with a spring plate 902 facing the filter hole 701, and an arc-shaped spring piece 903 is provided between the spring plate 902 and the guide plate 9.

[0029] Qualified coarse and fine mixed flux can continue to fall onto the guide plate 9. Under normal conditions, the guide plate 9 is supported by multiple sets of elastic reset members to maintain balance and can continuously receive the flux falling from the filter hole 701. When the accumulated weight of the flux exceeds the elastic force threshold of the elastic reset member, the guide plate 9 tilts downward, and the flux slides down the plate surface to the top area of ​​the sieve plate 801 below. As the flux is rapidly lost, the guide plate 9 is reset again under the action of the elastic reset member to continue to receive the flux. Through this structural design, batch quantitative feeding can be automatically realized, thereby avoiding the problem of excessive sorting load and incomplete separation of coarse and fine flux caused by continuous and uninterrupted falling flux. Meanwhile, a spring plate 902 is inclinedly arranged on the guide plate 9 and faces the filter hole 701. The spring plate 902 can concentrate and guide the falling flux to the front and middle sections of the guide plate 9, avoiding the flux from accumulating in the rear section and causing the center of gravity to shift. This prevents the guide plate 9 from failing to deflect the material downwards normally. At the same time, with the elastic support of the arc-shaped spring piece 903, the guide plate 9 is stable under force and moves smoothly, thus effectively ensuring reliable batch feeding based on the accumulated flux amount. The flux slides down from the top area of ​​the sieve plate 801, which can greatly extend the sorting path of the flux, so that the flux can be fully screened. Then, the smaller flux particles fall into the fine material storage chamber below through the sieve holes, while the larger flux particles fall directly into the coarse material storage chamber below from the end, so as to achieve fine and coarse classification of the flux. When laying the flux, the control valve is activated. As the flux output unit moves forward, the fine flux can be laid from the fine flux cylinder 1001 through the discharge pipe 601 onto the weld seam to be welded, while the coarse flux is laid from the coarse flux cylinder 1002 above the fine flux, thus forming a layered laying structure with a lower layer of fine flux and an upper layer of coarse flux. Because the fine flux particles are small, they can fully fill the gap space of the weld seam, tightly wrap the end of the welding wire, and strictly prevent air intrusion. The coarse flux forms a stable protective slag shell on top, which has a stronger heat preservation effect. Moreover, the particle gaps are relatively large and the air permeability is good, which can smoothly discharge the arc gas and water vapor generated during the welding process, thereby effectively avoiding defects such as incomplete penetration, incomplete fusion, open welds, and voids, and greatly improving the weld formation quality and welding reliability.

[0030] The elastic reset component is a spring 901, and at least one limiting block 802 is provided on the top of the screen plate 801 to prevent the guide plate 9 from contacting the screen plate 801.

[0031] The limiting block 802 can support and block the guide plate 9 when it is tilted downwards significantly, forming a feeding channel between the guide plate 9 and the sieve plate 801 to ensure the normal flow of flux and prevent the flux from being blocked. When the guide plate 9 repeatedly hits the limiting block 802 during frequent tilting and resetting, it can generate a vibration effect, which promotes the smooth flow of flux on the guide plate 9 and the sieve plate 801, greatly improving the screening effect.

[0032] It should be noted that the aperture size of the sieve plate 801 can be designed according to the actual flux particle size used; the initial position of the guide plate 9 is set horizontally or slightly upwardly to prevent it from slipping off prematurely before the flux accumulates to the trigger weight; the setting of the elastic threshold can be adaptively selected and adjusted according to the elastic coefficient of the elastic reset component, the weight of the guide plate 9 itself, and the amount of material that can be guided at one time to meet the actual use requirements.

[0033] In addition, an opening is provided on the side wall of the material box 6 near the lower part of the screen plate 801, and a feed hopper 603 is provided outside the opening. By providing the opening and the feed hopper 603, flux can be added into the material box 6.

[0034] like Figures 8-11 As shown, baffles 1003 are symmetrically arranged on both sides of the interior of the fine material cylinder 1001 and the coarse material cylinder 1002, and an adjustment mechanism is provided between them to adjust the spacing of the baffles 1003 to control the flux spreading range.

[0035] In one specific embodiment of the present invention, the adjusting mechanism includes: The positioning frame 1010 is located between the top ends of the fine material cylinder 1001 and the coarse material cylinder 1002. The top ends of the fine material cylinder 1001 and the coarse material cylinder 1002 are provided with slide rails 1004 on the side near the discharge pipe 601. The two slide rails 1004 are slidably connected to the two ends of the interior of each slide rail 1004. Two support seats 1006 are symmetrically arranged between the top ends of the fine material cylinder 1001 and the coarse material cylinder 1002. The top end of the slide rail 1005 is fixedly connected to the support seat 1006, and the bottom end of the slide rail 1005 is fixedly connected to the baffle 1003. The top of the positioning frame 1010 is rotatably connected to the connecting shaft 1007 via a bearing. The top end of the connecting shaft 1007 is fixedly connected to the crank arm 1008. The two ends of the crank arm 1008 are symmetrically hinged to the connecting arms 1009. The ends of the two connecting arms 1009 are respectively movably connected to the two support seats 1006. The driving component includes a second driving motor 1011. The output end of the second driving motor 1011 is connected to the connecting shaft 1007.

[0036] The drive component drives the crank arm 1008 to deflect, causing the crank arm 1008 to drive the connecting arms 1009 at both ends to rotate synchronously. The connecting arms 1009 can pull the support seat 1006 to move, causing the support seat 1006 to drive the slider 1005 to slide along the slide rail 1004. Then the slider 1005 drives the baffle 1003 to move, so that the two symmetrical baffles 1003 can move closer or further away synchronously. The baffles 1003 are inclined and attached to the cylinder wall, and the distance between them gradually decreases from top to bottom. Under the action of this distance adjustment mechanism, the distance between the two sets of baffles 1003 in the fine material cylinder 1001 and the coarse material cylinder 1002 can be adjusted synchronously, thereby controlling the discharge width range of the upper and lower layers of flux, ensuring that the flux evenly covers the weld area, avoiding flux waste due to excessively wide coverage, and preventing insufficient weld protection due to excessively narrow coverage, effectively improving welding quality and flux utilization.

[0037] like Figure 12 and Figure 13 As shown, the dual-discharge component 10 is also equipped with a waste removal mechanism, which includes: Mounting bracket 11 is located on the outer side of the bottom end of fine material cylinder 1001. A support shaft 1101 is rotatably connected to the side wall of mounting bracket 11 via bearings. A brush handle 1102 is located on the bottom side of support shaft 1101, and a guide frame 1103 is fixed to the top end of support shaft 1101. A third drive motor 1106 is located on the side wall of mounting bracket 11. A protective cover is provided for the third drive motor 1106. A handle 1105 is located near the top of support shaft 1101 at the output end of the third drive motor 1106. A guide post 1104 is fixed to one end of handle 1105 relative to the output shaft of the third drive motor 1106. The guide post 1104 slides... The rotating handle 1105 is driven to rotate by the third drive motor 1106 within the guide frame 1103. With the cooperation of the support shaft 1101, the rotating handle 1105 can drive the guide post 1104 to slide back and forth within the guide frame 1103. This causes the guide frame 1103 to drive the brush handle 1102 to swing back and forth via the support shaft 1101. Initially, the brush at the bottom of the brush handle 1102 extends vertically into the weld. As the brush handle 1102 swings left and right, it can clean and remove dust, iron filings, and other impurities from the weld bevel, thereby ensuring that the weld area is clean and free of impurities before welding. This prevents impurities from entering the molten pool and causing welding defects such as porosity and slag inclusions, providing a good welding foundation for subsequent welding processes.

[0038] Working principle and process: In use, the moving unit 2 can drive the welding unit to move left and right, forward and backward, and up and down, realizing position adjustment and walking operation. After the welding torch 4, the double discharge component 10, and the negative pressure suction pipe 501 are moved to the welding area, the distance between the two sets of baffles 1003 in the fine material cylinder 1001 and the coarse material cylinder 1002 is adjusted synchronously by the distance adjustment mechanism to control the discharge width range of the upper and lower layers of flux, ensuring that the flux evenly covers the weld area. When laying the flux, the control valve is activated. As the equipment moves forward, the impurity removal mechanism can clean and discharge dust, iron filings, and other impurities in the weld bevel. Then, the fine material can be laid from the fine material cylinder 1001 to the weld to be welded through the discharge pipe 601, and the coarse material is laid from the coarse material cylinder. 1002 is laid on top of the fine material, forming a layered structure of fine material at the bottom and coarse material at the top. The welding wire at the bottom of the welding gun 4 is inserted into the flux layer. During operation, the arc burns under the protection of the flux. The welding wire and the base material melt and fuse together. Finally, it cools to form a continuous and dense weld. The negative pressure suction pipe 501 recovers the residual flux in the welding area and transports it into the conveying cylinder 7. The separation mechanism leaves the qualified flux particles that meet the usage requirements in the recovered flux. Larger slag, lumps and other large particle impurities are collected separately. The remaining qualified flux particles are separated into fine and coarse materials and stored separately in the corresponding storage chambers. Finally, the double discharge component 10 outputs the material in layers.

[0039] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An automated welding device for steel structure production, characterized in that, include: A fixed frame (1) is provided with a movable unit (2) at its top. The welding unit is mounted on the moving unit (2) and includes a support frame (3) and a welding torch (4) mounted on the bottom of the support frame (3). The material suction unit (5), which is mounted on the support frame (3), is used to recover residual flux in the welding operation area; The flux output unit is located on one side of the support frame (3) and includes a material box (6), a separation mechanism and a double discharge component (10). The top of the material box (6) is provided with a feed pipe (602) connected to the suction unit (5), and the bottom of its interior is provided with a partition (8) to divide the interior of the material box (6) into two independent storage chambers. The separation mechanism includes a pre-separation component and a fine separation component arranged vertically in the material box (6). The pre-separation component is used to pre-separate the recycled flux, and the fine separation component is used to classify the qualified flux after pre-separation into coarse and fine grades, and can introduce the coarse and fine materials into the corresponding two storage chambers respectively. The double discharge component (10) is connected to the two storage chambers respectively and is used to control the fine and coarse materials to be output in layers sequentially.

2. The automatic welding device for steel structure production according to claim 1, characterized in that, The dual-discharge component (10) includes a fine material cylinder (1001) and a coarse material cylinder (1002). The top ends of the fine material cylinder (1001) and the coarse material cylinder (1002) are respectively provided with discharge pipes (601) that are connected to two storage chambers, and their bottom ends are facing the welding operation area. The ends of the discharge pipe (601) and the feed pipe (602) are provided with control valves. The fine material cylinder (1001) and the coarse material cylinder (1002) are symmetrically provided with baffles (1003) on both sides inside, and a distance adjustment mechanism is provided between them to adjust the distance between the baffles (1003) to control the spread range of the flux.

3. The automatic welding device for steel structure production according to claim 1, characterized in that, The moving unit (2) includes an X-axis moving guide rail, a Y-axis moving guide rail and a Z-axis moving guide rail. The X-axis moving guide rail is located on the top of the fixed frame (1). The Y-axis moving guide rail is located on the top side of the X-axis moving guide rail via a slide block. The Z-axis moving guide rail is located on the side wall of the Y-axis moving guide rail via a slide block. The moving unit (2) can drive the welding unit to perform three-dimensional motion.

4. The automated welding device for steel structure production according to claim 1, characterized in that, The suction unit (5) includes a negative pressure suction pipe (501) and a gas separator (502). The bottom end of the negative pressure suction pipe (501) corresponds to the welding operation area of ​​the welding gun (4) and is used to recover the residual flux after welding. Its top end is connected to the inlet of the gas separator (502). The top end of the gas separator (502) is connected to the negative pressure gas source through a pipeline, and its bottom end is provided with a flux outlet connected to the inlet pipe (602).

5. An automated welding device for steel structure production according to claim 2, characterized in that, The pre-separation component includes a conveying cylinder (7) that runs through the top of the material box (6). The bottom side of the conveying cylinder (7) is provided with a number of filter holes (701), and the conveying cylinder (7) is provided with a spiral conveying component. The inlet of the conveying cylinder (7) is connected to the feed pipe (602), and the outlet of the conveying cylinder (7) is provided with a slag collection component. The spiral conveying assembly includes a fixed shaft (704) rotatably connected inside the conveying cylinder (7), the outer wall of the fixed shaft (704) is provided with spiral blades (705), and a first drive motor (706) is fixed at one end of the conveying cylinder (7), the output end of the first drive motor (706) is connected to the fixed shaft (704); The slag collection assembly includes a waste bin (703) located on the side wall of the material bin (6), and a discharge pipe (702) is provided between the top of the waste bin (703) and the discharge port of the conveying cylinder (7). The fine separation component includes a screen plate (801) inclinedly arranged in the middle of the material box (6). The bottom end of the screen plate (801) is fixedly connected to the top end of the partition plate (8), and the screen plate (801) is located above the fine material cylinder (1001). A guide is provided between the screen plate (801) and the conveying cylinder (7) to receive the flux filtered out by the filter hole (701) and guide the flux to the top end of the screen plate (801) according to the cumulative amount of flux.

6. An automated welding device for steel structure production according to claim 5, characterized in that, The material guide includes a material guide plate (9) and several elastic reset members. The material guide plate (9) is movably connected to the inside of the material box (6) on one side relative to the screen plate (801), and the material guide plate (9) is located between the screen plate (801) and the conveying cylinder (7). The several elastic reset members are arranged between the material guide plate (9) and the inner wall of the material box (6). The top side of the guide plate (9) is inclinedly provided with a spring plate (902) facing the filter hole (701), and an arc-shaped spring piece (903) is provided between the spring plate (902) and the guide plate (9).

7. An automated welding device for steel structure production according to claim 6, characterized in that, The elastic reset component is a spring (901), and at least one limiting block (802) is provided on the top of the sieve plate (801) to prevent the guide plate (9) from contacting the sieve plate (801).

8. An automated welding device for steel structure production according to claim 2, characterized in that, The adjusting mechanism includes: A positioning frame (1010) is set between the top of the fine material cylinder (1001) and the coarse material cylinder (1002). The top of the fine material cylinder (1001) and the coarse material cylinder (1002) are provided with slide rails (1004) on the side near the discharge pipe (601). The two slide rails (1004) are slidably connected to the two ends of the interior of each slide rail (1004). Two support seats (1006) are symmetrically arranged between the top of the fine material cylinder (1001) and the coarse material cylinder (1002). The top of the slider (1005) is fixedly connected to the support seat (1006), and the bottom of the slider (1005) is fixedly connected to the baffle (1003). The top of the positioning frame (1010) is rotatably connected to a connecting shaft (1007) via a bearing. The top of the connecting shaft (1007) is fixedly connected to a crank arm (1008). The two ends of the crank arm (1008) are symmetrically hinged to connecting arms (1009). The ends of the two connecting arms (1009) are respectively movably connected to two support seats (1006). The driving component includes a second driving motor (1011), the output end of which is connected to the connecting shaft (1007).

9. An automated welding device for steel structure production according to claim 5, characterized in that, The side wall of the hopper (6) is provided with an opening near the bottom of the sieve plate (801), and a feed hopper (603) is provided outside the opening.

10. An automated welding device for steel structure production according to claim 2, characterized in that, The dual-discharge component (10) is also provided with a cleaning mechanism, which includes: The mounting bracket (11) is located on the outer side of the bottom end of the fine material cylinder (1001). The side wall of the mounting bracket (11) is rotatably connected to the support shaft (1101) via bearings. The bottom side of the support shaft (1101) is provided with a brush handle (1102), and the top end of the support shaft (1101) is fixed with a guide frame (1103). The side wall of the mounting bracket (11) is provided with a third drive motor (1106). The output end of the third drive motor (1106) is provided with a rotating handle (1105) near the support shaft (1101). One end of the rotating handle (1105) relative to the output shaft of the third drive motor (1106) is fixed with a guide post (1104), and the guide post (1104) is slidably fitted in the guide frame (1103).

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