Portable thick wire submerged arc horizontal welding machine

Abstract

The invention relates to a portable thick wire submerged arc horizontal welding machine which comprises a walking vehicle body mechanism, a guide mechanism, a sand supporting mechanism, a sand supporting adjusting mechanism, a welding gun adjusting mechanism, a welding flux circulating mechanism, a wire feeding mechanism and a control box mechanism. By means of the guide mechanism, the device can be vertically attached to the surface of a workpiece needing to be welded and accurately move along the surface of the workpiece needing to be welded, meanwhile, submerged-arc welding is conducted on a transverse weld joint, the problem that gas protection fails in manual welding is effectively avoided, and the welding quality and the construction efficiency are greatly improved.

Description

Technical Field

[0001] This invention belongs to the field of welding equipment, specifically a portable coarse wire submerged arc horizontal welding machine. Background Technology

[0002] In the construction of large steel structures such as large oil storage tanks, natural gas storage tanks, and ship hull plates, transverse welds are a core process for ensuring structural safety. These construction projects are often carried out in outdoor or open-air environments, where environmental factors such as wind and humidity fluctuate significantly. Therefore, stringent requirements are placed on the environmental adaptability of welding equipment, ease of on-site operation, and the stability of weld quality. From the current industry application status, transverse weld welding mainly relies on two technical solutions, but both have significant shortcomings and are difficult to meet actual construction needs: The first is the manual welding solution, which generally uses carbon dioxide gas shielded welding for transverse butt welding. This solution is extremely sensitive to the outdoor environment; wind and humidity can easily cause the gas shielding to fail, leading to quality defects such as weld porosity, slag inclusions, and incomplete penetration. Not only is the weld qualification rate low, but the manual labor intensity is high and the work efficiency is low, making it unable to meet the requirements of large-scale construction schedules. The second is the dedicated welding equipment solution. Existing dedicated transverse submerged arc welding equipment is generally bulky and heavy, resulting in cumbersome transportation and on-site installation and commissioning processes. It also has strong specialization in power supply and welding wire, requiring specific specifications of power supply and welding wire, resulting in extremely poor versatility. This situation not only significantly increases construction costs but also severely limits the flexible application of equipment in different construction scenarios. Therefore, a portable coarse wire submerged arc transverse welding machine is proposed. Summary of the Invention

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0004] Given the following technical problems in the existing technology: 1. Existing manual welding solutions have weak resistance to environmental interference, unstable welding quality, low pass rate, low work efficiency, and high manual labor intensity; 2. Existing special welding equipment is large in size and heavy in weight, has poor portability, and is cumbersome to transport, install and debug; 3. Existing special welding equipment has poor versatility, has special requirements for power supply and welding wire, increases construction costs and limits the adaptability of scenarios.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a portable coarse wire submerged arc horizontal welding machine, comprising a walking vehicle mechanism, a guiding mechanism, a sand-supporting mechanism, a sand-supporting adjustment mechanism, a welding torch adjustment mechanism, a flux circulation mechanism, a wire feeding mechanism, and a control box mechanism; The traveling vehicle mechanism includes a traveling vehicle body, four wheels, two drive mechanisms, two magnetic adsorption mechanisms, and two clutch mechanisms. The traveling vehicle body has two drive mechanisms, each with a clutch mechanism at one end. Each drive mechanism contains a magnetic adsorption mechanism that magnetically attracts the welding workpiece to the wheel. Each drive mechanism has a wheel at one end. The clutch mechanisms separate the internal gears of the drive mechanisms by rotating an eccentric seat. The magnetic adsorption mechanisms ensure stable attachment of the equipment to the workpiece surface, preventing detachment or displacement during lateral welding. The clutch mechanisms facilitate equipment start-stop switching, improving operational safety and convenience.

[0006] The guiding mechanism includes a track assembly and a rail-hanging assembly. The track assembly includes a switch magnet, a magnet mounting base, and a track plate. The switch magnet is connected to the track plate via the magnet mounting base. The track assembly is attached to the welding workpiece by seven switch magnets and mates with the weld. A hook wheel is rotatably connected to the rail-hanging assembly. The hook wheel is hooked onto the track plate and can roll along it. The top of the traveling vehicle is fixedly connected to the rail-hanging connecting plate. The cooperation between the track assembly and the rail-hanging assembly enables the equipment to move precisely along the weld. The adsorption design of the switch magnets ensures that the track is firmly positioned, effectively improving the accuracy of the welding trajectory and avoiding the trajectory deviation problem during manual welding.

[0007] As a preferred technical solution for a portable coarse wire submerged arc welding machine, the sand-supporting adjustment mechanism includes two vertical adjustment components and two slide rail components; The vertical adjustment component is fixed to the traveling vehicle body via side support fixing plates and side support upright plates. The slide rail component is connected to the sand-supporting mechanism via a slider. One end of the slide rail component is equipped with a spring, and a slide rail rod is installed on the slide rail component. A slider is slidably connected to the slide rail rod, and the slider is connected to one end of the spring. This allows adjustment of the vertical and horizontal positions of the sand-supporting mechanism and compression of the sand-supporting mechanism. The traveling vehicle body is fixedly connected to the side support fixing plate via a slide rail connecting plate. The multi-directional adjustment function can adapt to the welding requirements of welds of different thicknesses and positions. The spring compression design ensures that the sand-supporting mechanism remains stable during equipment movement, avoids flux load displacement, and ensures welding continuity.

[0008] As a preferred technical solution for a portable coarse wire submerged arc horizontal welding machine, the sand-supporting mechanism includes a sand-supporting fixing plate, a panel, a synchronous belt, two synchronous pulleys, a pulley slider seat, a sand-supporting adjusting rod, a limiting slide groove, and a top wheel screw. One end of the sand-supporting fixing plate has a limiting groove, and the middle section of the limiting groove has a long groove. A pulley slider seat is movably connected in the long groove. Both sides of the pulley slider seat are threadedly connected to a pulley slider seat pressure plate by threaded pins. Each pulley slider seat pressure plate has a movable long groove. A locking screw is movably inserted in the movable long groove. The locking screw is threadedly connected to the threaded hole on the sand-supporting fixing plate. The sand-supporting adjusting rod is slidably connected to the pulley slider seat. The pulley slider seat pressure plate is slidably connected in the limiting groove. A pulley fixing seat is set on the pulley slider seat. A synchronous pulley is set on the outer side of the pulley fixing seat. A running groove is also set on the pulley slider seat pressure plate. The synchronous pulley is located inside the running groove. A synchronous belt is connected between the two synchronous pulleys. The inner side of the synchronous belt is movably connected to the outer side of the synchronous pulley. Rotating the sand-supporting adjusting rod can move the pulley slider seat to tension the synchronous belt. A side plate is provided on the sand-supporting fixing plate. One end of the sand-supporting adjusting rod passes through the side plate and is threaded to a nut. The sand-supporting fixing plate is located at the top of the slider. The position of the synchronous pulley is adjusted by the pulley slider seat pressure plate and the pulley slider seat. The position of the pulley slider seat pressure plate is locked by the locking screw to keep the synchronous belt taut and prevent it from shrinking and loosening. The dual fixing design of the circular magnet assembly adsorption and the top wheel pressing further improves the fit between the sand-supporting mechanism and the workpiece, ensuring that the flux accurately covers the weld seam, while avoiding flux spillage and improving flux utilization. As a preferred technical solution for a portable coarse wire submerged arc horizontal welding machine, the welding torch adjustment mechanism includes a horizontal adjustment component, a vertical adjustment component, and a welding torch clamping component. A horizontal adjustment seat is provided on the rail connecting plate. The horizontal adjustment seat is fixedly connected to one end of the horizontal adjustment rod. A horizontal adjustment component is sleeved on the horizontal adjustment rod. A vertical adjustment component is provided on one side of the horizontal adjustment component. A vertical adjustment rod is movably inserted into the vertical adjustment component. An adjustment knob is rotatably connected to the top of the vertical adjustment component. A connecting screw is provided at the bottom of the adjustment knob. The connecting screw is threadedly connected to the vertical adjustment rod. A welding torch clamping component is provided at the bottom of the vertical adjustment rod. A fixed clamping seat is provided on the welding torch clamping component. A movable clamping arm is hinged on the fixed clamping seat. A locking bolt is rotatably connected to the end of the fixed clamping seat away from the hinge point. A notch is opened on the movable clamping arm. The locking bolt is inserted into the notch of the movable clamping arm. A locking nut is rotatably connected to one end of the locking bolt. The locking nut abuts against the movable clamping arm. The fixed clamping seat and the movable clamping arm cooperate to clamp the welding torch. The locking structure design ensures that the welding torch is firmly clamped, preventing the welding torch from shaking or falling off during welding, ensuring stable welding current, and reducing weld defects.

[0009] The welding posture of the welding torch can be adjusted in three dimensions by using the horizontal and vertical adjustment components. The three-dimensional adjustment function greatly improves the adaptability of the equipment, and can accurately match the welding requirements of horizontal welds of different angles and widths, eliminating the need to frequently change equipment or adjust the position of the workpiece, thus improving construction efficiency.

[0010] As a preferred technical solution for a portable coarse wire submerged arc horizontal welding machine, the flux circulation mechanism includes a flux tank, a sand-feeding device, and a flux recovery component. Support frames are installed on both sides of the flux tank, and these frames are fixedly connected to the rail assembly. The upper end of the sand-feeding device is connected to the flux tank, and the lower end corresponds to the sand-supporting mechanism, achieving flux circulation and recovery through compressed air. This circulation and recovery design effectively reduces flux waste and lowers construction material costs, while also preventing flux from scattering and polluting the construction environment, thus meeting green construction requirements. The support frames ensure stable installation of the flux tank and prevent shaking or displacement during equipment operation.

[0011] As a preferred technical solution for a portable submerged arc welding machine, the wire feeding mechanism includes a wire feeder frame, a wire feeder, a wire feed tube, and a wire feed tube fixing component. The wire feeding mechanism is connected to the traveling vehicle mechanism via a control box mechanism and a guide mechanism. The wire feeder is mounted on the upper side of the wire feeder frame, and is covered by a wire feeder protective cover. The wire feeder frame is attached to a track plate via a rail assembly and hook wheels and is synchronously moved by the traveling vehicle mechanism. The wire feed tube fixing component restricts the swaying of the wire feed tube. The wire feeder feeds the welding wire to the welding torch through the wire feed tube. The synchronous movement design ensures precise matching between the wire feeding speed and the welding speed, avoiding weld defects caused by excessively fast or slow wire feeding. The wire feed tube fixing component effectively prevents the wire feed tube from swaying, ensuring a stable wire feeding trajectory. The protective cover protects the wire feeder from external dust and debris, extending the equipment's service life. The welding torch model is: MZ-1000 submerged arc welding torch.

[0012] As a preferred technical solution for a portable coarse wire submerged arc horizontal welding machine, the control box mechanism includes a control box, a circuit board, and wing screws. The control box is fixed to the rail assembly via an adapter square tube. Loosening the wing screws allows for rotational adjustment of the control box's operating direction. The wing screws connect the control box and the adapter square tube. The circuit board is electrically connected to the motor and wire feeder of the drive mechanism. The rotatable and adjustable control box design adapts to different operator needs, improving operational convenience. The centralized control design of the circuit board enables coordinated operation of the drive and wire feed, ensuring equipment synchronization and improving welding quality stability.

[0013] As a preferred technical solution for a portable coarse wire submerged arc horizontal welding machine, a top wheel assembly is provided on the sand support fixing plate. The top wheel assembly includes a top wheel screw. The top wheel screw is threadedly connected to the sand support fixing plate. A tensioning element is rotatably connected to one end of the top wheel screw that extends into the sand support fixing plate. The tensioning element includes a top wheel slider and a top wheel. The top wheel slider is movably inserted into the sand support fixing plate, and the top wheel presses against the timing belt.

[0014] As a preferred technical solution for a portable coarse wire submerged arc horizontal welding machine, the sand-supporting mechanism also includes a dust baffle and a pressure strip. The dust baffle is pressed tightly onto the panel surface of the sand-supporting mechanism by the pressure strip to prevent flux from leaking into the interior of the sand-supporting mechanism. The dust baffle can effectively prevent flux from entering the interior of the mechanism and causing component jamming or wear, thus extending the service life of the sand-supporting mechanism and reducing the frequency and cost of equipment maintenance. The pressing design of the pressure strip ensures that the baffle is firmly installed and prevents it from falling off during equipment operation.

[0015] As a preferred technical solution for a portable coarse wire submerged arc horizontal welding machine, the sand-supporting mechanism also includes two circular magnet assemblies. Each circular magnet assembly comprises a circular magnet and a synchronous gear. A circular magnet is located at one end of the synchronous belt pulley, and the synchronous gear is fitted around the outer ring of the circular magnet. A stepped portion is provided on one side of the inner side of the synchronous belt, forming a continuous annular belt structure. This stepped portion meshes with the synchronous gear, whose diameter is smaller than that of the synchronous belt pulley. The synchronous gear is connected to the circular magnet via a synchronous gear adapter block. The circular magnet magnetically attracts the workpiece. The magnetic attraction of the circular magnet keeps the synchronous belt pressed tightly against the surface of the workpiece, generating sufficient friction to lock the synchronous belt and workpiece relatively, thus ensuring the relative stillness of the synchronous belt and the weld seam. This ensures precise alignment of the flux and the weld seam. This design further guarantees welding accuracy, avoids welding defects caused by flux deviation from the weld seam, and improves the weld pass rate. Simultaneously, the relative stillness of the synchronous belt and the workpiece reduces frictional damage to the workpiece surface, protecting the workpiece's appearance quality.

[0016] The advantages of this portable coarse wire submerged arc horizontal welding machine are as follows: Through the use of a guiding mechanism, the device can be vertically attached to the surface of the workpiece to be welded and move precisely along the surface of the workpiece while simultaneously performing submerged arc welding on the transverse weld seam. This effectively avoids the problem of gas shielding failure in manual welding, greatly improving welding quality and construction efficiency. The overall device is composed of a frame structure, designed to fit closely to the workpiece surface, making the device small in size and light in weight, facilitating transportation, installation, and debugging. No dedicated power supply is required, making it highly versatile, reducing construction costs, and facilitating market promotion. The sand-supporting mechanism uses a magnet assembly and a top wheel screw to ensure that one edge of the synchronous belt is pressed tightly against the surface of the workpiece. When the equipment moves, the synchronous belt and the workpiece remain relatively stationary, ensuring that the supported flux precisely corresponds to the weld seam position, further guaranteeing welding quality. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1This is a schematic front view of the overall structure of the present invention; Figure 2 This is a front view schematic diagram of the traveling vehicle body mechanism; Figure 3 for Figure 2 BB cross-sectional diagram; Figure 4 This is a schematic diagram of the main view of the guiding mechanism; Figure 5 for Figure 4 BB cross-sectional diagram; Figure 6 This is a schematic diagram of the main view of the sand-supporting mechanism; Figure 7 Schematic diagram of sand-lifting mechanism Figure 2 ; Figure 8 for Figure 6 BB cross-sectional diagram; Figure 9 This is a schematic diagram of the main view of the sand-lifting adjustment mechanism; Figure 10 for Figure 9 A top-down view; Figure 11 This is a front view schematic diagram of the welding torch adjustment mechanism; Figure 12 for Figure 11 A cross-sectional view; Figure 13 This is a front view schematic diagram of the flux circulation mechanism; Figure 14 This is a front view schematic diagram of the wire feeding mechanism; Figure 15 This is a front view schematic diagram of the control box mechanism; Figure 16 for Figure 15 A diagram showing the view from the right. Figure 17 This is a schematic diagram of the drive mechanism and the clutch mechanism; Figure 18 This is a schematic diagram of the drive mechanism; Figure 19 Schematic diagram of the gun adjustment mechanism Figure 2 ; Figure 20 Schematic diagram of sand-lifting mechanism Figure 3 .

[0018] Reference numerals: 1. Walking vehicle body mechanism; 2. Guiding mechanism; 3. Sand-collecting mechanism; 4. Sand-collecting adjustment mechanism; 5. Welding torch adjustment mechanism; 6. Flux circulation mechanism; 7. Wire feeding mechanism; 8. Control box mechanism; 1-1. Walking vehicle body; 1-2. Wheel; 1-3. Drive mechanism; 1-31. Motor; 1-32. Drive gear; 1-33. Driven gear; 1-34. Transmission gear; 1-35. Transmission shaft; 1-4. Magnetic adsorption mechanism; 1-5. Clutch mechanism; 1-6. 1. Eccentric seat; 1-52. Fixed seat; 1-53. Spring compression cylinder; 1-54. Connecting square plate; 1-55. Movable seat; 2-1. Switch magnet; 2-2. Magnet mounting seat; 2-3. Track plate; 2-4. Rail mounting assembly; 2-5. Rail mounting connecting plate; 2-6. Hook wheel; 3-1. Sand-supporting fixing plate; 3-2. Top wheel screw; 3-3. Panel; 3-4. Pulley slider seat pressure plate; 3-5. Synchronous belt; 3-6. Dustproof baffle; 3-7. Pressure strip; 3-8. Belt 3-9. Pulley fixing seat; 3-10. Synchronous belt pulley; 3-11. Synchronous gear; 3-12. Synchronous gear adapter block; 3-13. Circular magnet; 3-14. Pulley slider seat; 3-15. Sand-supporting adjusting rod; 3-16. Side plate; 3-17. Locking screw; 3-18. Tensioning component; 4-1. Limiting slide groove; 4-1. Vertical adjustment assembly; 4-2. Side support fixing plate; 4-3. Side support upright plate; 4-4. Slide rail connecting plate; 4-5. Slide rail component; 4-6. Spring; 4-7. 5-1. Slider; 5-2. Vertical adjustment assembly; 5-3. Horizontal adjustment assembly; 5-4. Welding torch clamping assembly; 6-5. Flux box; 6-6. Sand discharge device; 6-7. Flux recovery component; 6-8. Support frame; 7-9. Wire feed tube; 7-1. Wire feed tube fixing assembly; 7-2. Welding torch; 7-3. Wire feeder protective cover; 7-4. Wire feeder; 7-5. Wire feeder; 7-6. Wire feeder frame; 8-1. Control box; 8-2. Circuit board; 8-3. Wing screw; 8-4. Adapter square tube. Detailed Implementation

[0019] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0020] like Figures 1-20 As shown, the present invention proposes a portable coarse wire submerged arc horizontal welding machine, including a walking vehicle body mechanism 1, a guiding mechanism 2, a sand-supporting mechanism 3, a sand-supporting adjustment mechanism 4, a welding torch adjustment mechanism 5, a flux circulation mechanism 6, a wire feeding mechanism 7, and a control box mechanism 8. The traveling vehicle mechanism 1 includes a traveling vehicle body 1-1, four wheels 1-2, two drive mechanisms 1-3, two magnetic adsorption mechanisms 1-4, and two clutch mechanisms 1-5. The traveling vehicle body 1-1 is equipped with two drive mechanisms 1-3, and a clutch mechanism 1-5 is provided at one end of each drive mechanism 1-3. Each drive mechanism 1-3 is equipped with a magnetic adsorption mechanism 1-4. The magnetic adsorption mechanism 1-4 magnetically attracts the welding workpiece in contact with the wheel 1-2. A wheel 1-2 is provided at each end of the drive mechanism 1-3. The clutch mechanism 1-5 achieves the separation of the internal gears of the drive mechanism 1-3 by rotating the eccentric seat 1-51. The magnetic adsorption mechanism can ensure that the equipment is stably attached to the surface of the workpiece and avoid detachment and displacement during transverse welding. The clutch mechanism facilitates the start and stop of the equipment and improves the safety and convenience of operation.

[0021] The guiding mechanism 2 includes a track assembly and a rail-hanging assembly 2-4. The track assembly includes a switch magnet 2-1, a magnet mounting base 2-2, and a track plate 2-3. The switch magnet 2-1 is connected to the track plate 2-3 via the magnet mounting base 2-2. The track assembly is attached to the welding workpiece by seven switch magnets 2-1 and engages with the weld. A hook wheel 2-6 is rotatably connected to the rail-hanging assembly 2-4. The hook wheel 2-6 is hooked onto the track plate 2-3 and can roll along it. The top of the traveling vehicle body 1-1 is fixedly connected to the rail-hanging connecting plate 2-5. The cooperation between the track assembly and the rail-hanging assembly enables the equipment to move precisely along the weld. The adsorption design of the switch magnets ensures that the track is firmly positioned, effectively improving the accuracy of the welding trajectory and avoiding the trajectory deviation problem during manual welding.

[0022] The sand-lifting adjustment mechanism 4 includes two vertical adjustment components 4-1 and two slide rail components 4-5; The vertical adjustment component 4-1 is fixed to the traveling vehicle body 1-1 via the side support fixing plate 4-2 and the side support upright plate 4-3. The slide rail component 4-5 is connected to the sand-supporting mechanism 3 via the slider 4-7. A spring 4-6 is provided at one end of the slide rail component 4-5. A slide rail rod is provided on the slide rail component 4-5. The slider 4-7 is slidably connected to the slide rail rod. The slider 4-7 is connected to one end of the spring 4-6, which can adjust the up-down and left-right positions of the sand-supporting mechanism 3 and press the sand-supporting mechanism 3. The traveling vehicle body 1-1 is fixedly connected to the side support fixing plate 4-2 via the slide rail connecting plate 4-4. The multi-directional adjustment function can adapt to the welding requirements of welds of different thicknesses and positions. The spring pressing design ensures that the sand-supporting mechanism remains stable during the movement of the equipment, avoids flux load displacement, and ensures welding continuity.

[0023] The sand-supporting mechanism 3 also includes two circular magnet assemblies, each comprising a circular magnet 3-12 and a synchronous gear 3-5. A circular magnet 3-12 is mounted on one end of the synchronous pulley 3-9, and a synchronous gear 3-10 is fitted around the outer ring of the circular magnet 3-12. A stepped portion is provided on one side of the inner side of the synchronous belt 3-5, forming a continuous annular belt structure. The stepped portion of the synchronous belt 3-5 meshes with the synchronous gear 3-5. The diameter of the synchronous gear 3-5 is smaller than the diameter of the synchronous pulley 3-9. The synchronous gear 3-5 is connected to the circular magnet 3-12 via a synchronous gear adapter block 3-11. The circular magnet 3-12 magnetically attracts the welding workpiece. The magnetic attraction of the circular magnet 3-12 causes the synchronous belt 3-5 to adhere tightly to the surface of the welding workpiece, generating sufficient friction to lock the synchronous belt 3-5 relative to the welding workpiece, thereby maintaining relative stillness between the synchronous belt 3-5 and the weld seam. A top wheel assembly is provided on the sand-supporting fixing plate 3-1. The top wheel assembly includes a top wheel screw 3-2. The top wheel screw 3-2 is threadedly connected to the sand-supporting fixing plate 3-1. A tensioning element 3-17 is rotatably connected to one end of the top wheel screw 3-2 that extends into the sand-supporting fixing plate 3-1. The tensioning element 3-17 includes a top wheel slider and a top wheel. The top wheel slider is movably inserted into the sand-supporting fixing plate 3-1. The top wheel presses against the timing belt 3-5.

[0024] The sand-supporting mechanism 3 includes a sand-supporting fixing plate 3-1, a panel 3-3, a synchronous belt 3-5, two synchronous pulleys 3-9, a pulley slider seat 3-13, a sand-supporting adjusting rod 3-14, a limiting slide groove 3-18, and a top wheel screw 3-2; One end of the sand-supporting fixing plate 3-1 has a limiting groove 3-18. A long groove is formed in the middle section of the limiting groove 3-18, within which a pulley slider seat 3-13 is movably connected. Both sides of the pulley slider seat 3-13 are threadedly connected to a pulley slider seat pressure plate 3-4 via threaded pins. Each pulley slider seat pressure plate 3-4 has a movable long groove, within which a locking screw 3-16 is movably inserted. The locking screw 3-16 is threadedly connected to a threaded hole on the sand-supporting fixing plate 3-1. The sand-supporting adjusting rod 3-14 is slidably connected to the pulley slider seat 3-13. The limit slide groove 3-18 is slidably connected to the pulley slider seat pressure plate 3-4. The pulley slider seat 3-13 is provided with a pulley fixing seat 3-8. The pulley fixing seat 3-8 is provided with a synchronous pulley 3-9 on its outer side. The pulley slider seat pressure plate 3-4 is also provided with a running groove. The synchronous pulley 3-9 is located inside the running groove. The two synchronous pulleys 3-9 are connected by a synchronous belt 3-5. The inner side of the synchronous belt 3-5 is movably connected to the outer side of the synchronous pulley 3-9. Rotating the sand-supporting adjustment rod 3-14 can drive the pulley slider seat 3-13 to move to tension the synchronous belt 3-5. A side plate 3-15 is provided on the sand-supporting fixing plate 3-1. One end of the sand-supporting adjusting rod 3-14 passes through the side plate 3-15 and is threaded with a nut. The sand-supporting fixing plate 3-1 is located at the top of the slider 4-7. The position of the synchronous pulley 3-9 is adjusted by the pulley slider seat pressure plate 3-4 and the pulley slider seat 3-13. The position of the pulley slider seat pressure plate 3-4 is locked by the locking screw 3-16 to keep the synchronous belt 3-5 taut and prevent it from retracting and loosening. The sand-supporting fixing plate 3-1 is located at the top of the slider 4-7. The dual fixing design of the circular magnet assembly adsorption and the top wheel pressing further improves the fit between the sand-supporting mechanism and the workpiece, ensuring that the flux accurately covers the weld, while avoiding flux spillage and improving flux utilization.

[0025] The welding torch adjustment mechanism 5 includes a horizontal adjustment component 5-2, a vertical adjustment component 5-1, and a welding torch clamping component 5-3; A horizontal adjustment seat 5-11 is provided on the rail connecting plate 2-5. The horizontal adjustment seat 5-11 is fixedly connected to one end of the horizontal adjustment rod 5-5. A horizontal adjustment assembly 5-2 is sleeved on the horizontal adjustment rod 5-5. A vertical adjustment assembly 5-1 is provided on one side of the horizontal adjustment assembly 5-2. A vertical adjustment rod 5-10 is movably inserted into the vertical adjustment assembly 5-1. An adjustment knob 5-4 is rotatably connected to the top of the vertical adjustment assembly 5-1. A connecting screw is provided at the bottom of the adjustment knob 5-4. The connecting screw is threadedly connected to the vertical adjustment rod 5-10. A welding torch clamping assembly 5-3 is provided at the bottom of the vertical adjustment rod 5-10. The holding assembly 5-3 is equipped with a fixed clamp 5-6, and a movable clamping arm 5-7 is hinged to the fixed clamp 5-6. A locking bolt 5-8 is rotatably connected to the end of the fixed clamp 5-6 away from the hinge point. A notch is opened on the movable clamping arm 5-7, and the locking bolt 5-8 is inserted into the notch of the movable clamping arm 5-7. A locking nut 5-9 is rotatably connected to one end of the locking bolt 5-8. The locking nut 5-9 abuts against the movable clamping arm 5-7. The fixed clamp 5-6 and the movable clamping arm 5-7 cooperate to clamp the welding torch 7-3. The locking structure design ensures that the welding torch is firmly clamped, avoids the welding torch shaking or falling off during the welding process, ensures stable welding current, and reduces weld defects.

[0026] The welding posture of the welding torch 7-3 can be adjusted in three dimensions by using the horizontal adjustment component 5-2 and the vertical adjustment component 5-1. The three-dimensional adjustment function greatly improves the adaptability of the equipment and can accurately match the welding requirements of horizontal welds of different angles and widths, eliminating the need for frequent equipment changes or workpiece position adjustments and improving construction efficiency.

[0027] The flux circulation mechanism 6 includes a flux tank 6-1, a sand-feeding device 6-2, and a flux recovery component 6-3. Supporting frames 6-4 are installed on both sides of the flux tank 6-1, and are fixedly connected to the rail assembly 2-4. The upper end of the sand-feeding device 6-2 is connected to the flux tank 6-1, and the lower end corresponds to the sand-feeding mechanism 3. The flux recovery component 6-3 includes a recovery hose, a recovery shovel, and a suspended welding machine recovery unit. The suspended welding machine is installed on top of the flux tank 6-1 and connected to the recovery shovel via the recovery hose. The model of the suspended welding machine recovery unit is YS-GFHS. The opening of the recovery shovel is close to the surface of the workpiece to be welded. This recovery design effectively reduces flux waste and lowers construction material costs, while preventing flux from scattering and polluting the construction environment, meeting green construction requirements. The supporting frames ensure stable installation of the flux tank and prevent shaking or displacement during equipment operation.

[0028] The wire feeding mechanism 7 includes a wire feeder frame 7-6, a wire feeder 7-5, a wire feeder tube 7-1, and a wire feeder tube fixing component 7-2. The wire feeding mechanism 7 is connected to the traveling vehicle body mechanism 1 through a control box mechanism 8 and a guide mechanism 2. The wire feeder 7-5 is installed on the upper side of the wire feeder frame 7-6. The wire feeder 7-5 is covered by a wire feeder protective cover 7-4. The wire feeder frame 7-6 is attached to the track plate 2-3 through a rail assembly 2-4 and a hook wheel 2-6 and is pulled synchronously by the traveling vehicle body mechanism 1. The wire feeder tube fixing component 7-2 restricts the shaking of the wire feeder tube 7-1. The wire feeder 7-5 feeds welding wire to the welding torch 7-3 through the wire feeder tube 7-1. The synchronous movement design ensures that the wire feeding speed and the welding speed are precisely matched, avoiding weld defects caused by excessively fast or slow wire feeding. The wire feeder tube fixing component effectively prevents the wire feeder tube from shaking and ensures the stability of the wire feeding trajectory. The protective cover can protect the wire feeder from external dust and debris, extending the service life of the equipment. The top of the wire feeding tube fixing component 7-2 is provided with a Y-shaped fork, and the wire feeding tube 7-1 is locked inside the Y-shaped fork.

[0029] The control box mechanism 8 includes a control box 8-1, a circuit board 8-2, and a wing screw 8-3. The control box 8-1 is fixed to the rail assembly 2-4 via an adapter square tube 8-4. Loosening the wing screw 8-3 allows for rotational adjustment of the control box 8-1's operating direction. The wing screw 8-3 connects the control box 8-1 and the adapter square tube 8-4. The circuit board 8-2 is electrically connected to the motor 1-31 of the drive mechanism 1-3 and the wire feeder 7-5. The circuit board 8-2 is model HCD500-2M. The rotatable and adjustable control box design adapts to different operator needs, improving operational convenience. The centralized control design of the circuit board enables coordinated operation of the drive and wire feeding, ensuring equipment synchronization and improving welding quality stability.

[0030] The universal adaptability design greatly improves the equipment's versatility, reduces the equipment procurement and supporting costs for construction units, eliminates the need to equip the equipment with a dedicated power supply and welding wire, facilitates the flexible application of the equipment in different construction scenarios, and is conducive to market promotion.

[0031] The sand-collecting mechanism 3 also includes a dust baffle 3-6 and a pressure strip 3-7. The dust baffle 3-6 is pressed against the surface of the panel 3-3 of the sand-collecting mechanism 3 by the pressure strip 3-7 to prevent flux from leaking into the interior of the sand-collecting mechanism 3. The dust baffle can effectively prevent flux from entering the interior of the mechanism and causing parts to jam or wear, thus extending the service life of the sand-collecting mechanism and reducing the frequency and cost of equipment maintenance. The pressing design of the pressure strip ensures that the baffle is installed firmly and prevents it from falling off during equipment operation.

[0032] The sand-supporting mechanism 3 uses a circular magnet 3-12 and a top wheel screw 3-2 to keep one edge of the synchronous belt 3-5 close to the surface of the workpiece. When the equipment moves, the synchronous belt 3-5 and the workpiece remain relatively stationary, ensuring that the flux and the weld are precisely aligned. This design further ensures welding accuracy, avoids welding defects caused by flux deviating from the weld, and improves the weld pass rate. At the same time, the relatively stationary state between the synchronous belt and the workpiece reduces frictional damage to the workpiece surface and protects the appearance quality of the workpiece.

[0033] The wire feeder 7-5 is connected to a wire feed tube 7-1. A wire feed tube fixing component 7-2 is provided on one side of the wire feeder frame 7-6. A fork is provided at the top of the wire feed tube fixing component 7-2, and the fork supports the wire feed tube 7-1. One end of the wire feed tube 7-1 is connected to the welding torch 7-3. The model of the wire feeder 7-5 is MZ-1-1000.

[0034] The specific implementation method is as follows: 1. Equipment preparation and installation: S1.1 Track assembly installation: Based on the position of the transverse weld of the storage tank, the track plate is fixed to the surface of the welded workpiece by seven switch magnets to ensure that the adsorption position of the track plate is precisely matched with the weld. Then, the switch magnets are fixed to the track plate firmly by the magnet mounting base.

[0035] S1.2 Main body mechanism connection: The rail components on both sides of the traveling vehicle body mechanism are connected to the fixed track plate by hook wheels, ensuring that the hook wheels fit tightly with the track plate and can roll smoothly; the magnetic adsorption mechanism in the traveling vehicle body mechanism allows the wheels to be adsorbed onto the surface of the welding workpiece, enhancing the adhesion stability of the device.

[0036] S1.3 Flux Filling and Piping Connection: Fill the flux tank of the flux circulation mechanism with a suitable solid submerged arc welding wire, check and ensure the connectivity between the sand feeding device and the flux tank and sand support mechanism, and ensure good connectivity between the flux recovery component and the flux tank and sand support mechanism; connect one end of the wire feeding tube of the wire feeding mechanism to the welding gun, and fix the other end to the fork of the wire feeding tube fixing assembly to limit the shaking of the wire feeding tube.

[0037] S1.4 Welding torch posture adjustment: Adjust the horizontal position of the welding torch by using the horizontal adjustment component of the welding torch adjustment mechanism, rotate the adjustment knob of the vertical adjustment component, drive the vertical adjustment rod to move up and down through the connecting screw, thereby adjusting the vertical height of the welding torch so that the welding torch is aligned with the welding start position of the weld seam; after the adjustment is completed, lock the movable clamping arm by locking the locking bolt and locking nut to ensure that the welding torch is firmly clamped by the fixed clamp and the movable clamping arm.

[0038] S1.5 Adjustment of the sand-supporting mechanism: Rotate the sand-supporting adjustment rod to drive the pulley slider seat to move along the groove of the sand-supporting fixing plate through the trapezoidal thread, thereby adjusting the distance between the two synchronous pulleys and making the synchronous belt taut; rotate the top wheel screw through the top wheel handle to drive the top wheel slider to move and make the top wheel press the synchronous belt; ensure that the circular magnet assembly of the sand-supporting mechanism is attached to the welding workpiece and one edge of the synchronous belt is close to the surface of the workpiece.

[0039] S1.6 Control box debugging: Loosen the wing screws, rotate the control box to a position that is easy for the operator to operate, and then tighten the wing screws to fix it; check the electrical connection between the circuit board inside the control box and the drive mechanism motor and wire feeder to ensure that the signal transmission is normal.

[0040] 2. Welding operation: S2.1 Flux Delivery and Welding: The flux circulation mechanism is activated, and the flux in the flux tank is delivered to the synchronous belt of the sand-supporting mechanism through the sand-dropping device. The synchronous belt and the workpiece remain relatively stationary to ensure that the flux completely covers the weld position corresponding to the welding gun.

[0041] S2.2 Starting the equipment: Start the wire feeder and drive mechanism through the control box. The wire feeder starts to feed the welding wire to the welding torch through the wire feeding tube. The drive mechanism drives the wheels to move along the surface of the workpiece to be welded. At the same time, the hook wheel of the rail assembly rolls along the track plate to achieve precise guidance of the device along the weld direction. The welding torch generates an electric arc to perform submerged arc welding on the weld. During the welding process, the dust baffle prevents the flux from leaking into the sand support mechanism.

[0042] S2.3 Flux Recovery: Excess flux generated during welding is drawn back into the flux tank by compressed air through the flux recovery unit, thus realizing the recycling of flux.

[0043] 3. Welding completed: S3.1 Stop operation: When welding reaches the end of the weld, the wire feeder, drive mechanism and flux circulation mechanism are stopped in sequence through the control box, and the welding power is turned off.

[0044] S3.2 Equipment disassembly: Rotate the clutch handle to disengage the gears inside the clutch mechanism and release the drive mechanism from the wheels; remove the connection between the rail assembly and the track plate in sequence, remove the switch magnet of the track assembly from the workpiece, disassemble and organize each mechanism in sequence, and complete the welding operation.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A portable coarse wire submerged arc horizontal welding machine, characterized in that: The system includes a traveling body mechanism (1), a guiding mechanism (2), a sand-collecting mechanism (3), a sand-collecting adjustment mechanism (4), a welding torch adjustment mechanism (5), a flux circulation mechanism (6), a wire feeding mechanism (7), and a control box mechanism (8). The traveling body mechanism (1) includes a traveling body (1-1), four wheels (1-2), two drive mechanisms (1-3), two magnetic adsorption mechanisms (1-4), and two clutch mechanisms (1-5). Two drive mechanisms (1-3) are provided on the traveling body (1-1), and a clutch mechanism (1-5) is provided at one end of each drive mechanism (1-3). Each drive mechanism (1-3) has a clutch mechanism (1-5). The magnetic adsorption mechanism (1-4) magnetically attracts the welded workpieces that are in contact with the wheel (1-2). The two ends of the drive mechanism (1-3) are respectively provided with a wheel (1-2). The guide mechanism (2) includes a track assembly and a rail assembly (2-4). The track assembly includes a switch magnet (2-1), a magnet mounting seat (2-2), and a track plate (2-3). The switch magnet (2-1) is connected to the track plate (2-3) through the magnet mounting seat (2-2). The hook wheel (2-6) is rotatably connected to the rail assembly (2-4). The top of the traveling vehicle body (1-1) is fixedly connected to the rail connecting plate (2-5).

2. The portable coarse wire submerged arc horizontal welding machine according to claim 1, characterized in that: The sand-lifting adjustment mechanism (4) includes two vertical adjustment components (4-1) and two slide rail components (4-5). The vertical adjustment component (4-1) is fixed to the traveling vehicle body (1-1) through the side support fixing plate (4-2) and the side support upright plate (4-3). The slide rail component (4-5) is connected to the sand-supporting mechanism (3) through the slider (4-7). A spring (4-6) is provided at one end of the slide rail component (4-5). A slide rail rod is provided on the slide rail component (4-5). A slider (4-7) is slidably connected on the slide rail rod. The slider (4-7) is connected to one end of the spring (4-6). The traveling vehicle body (1-1) is fixedly connected to the side support fixing plate (4-2) through the slide rail connecting plate (4-4).

3. The portable coarse wire submerged arc welding machine according to claim 1, characterized in that: The sand-supporting mechanism (3) includes a sand-supporting fixing plate (3-1), a panel (3-3), a timing belt (3-5), two timing pulleys (3-9), a pulley slider seat (3-13), a sand-supporting adjusting rod (3-14), a limiting slide groove (3-18), and a top wheel screw (3-2). A limiting groove (3-18) is provided at one end of the sand-supporting fixing plate (3-1). A long groove is provided in the middle section of the limiting groove (3-18). A pulley slider seat (3-13) is movably connected in the long groove. A pulley slider seat pressure plate (3-4) is threadedly connected to both sides of the pulley slider seat (3-13) by threaded pins. Each pulley slider seat pressure plate (3-4) is provided with a movable long groove. A locking screw (3-16) is movably inserted into the movable long groove. The locking screw (3-16) is threadedly connected to the threaded hole on the sand-supporting fixing plate (3-1). The sand-supporting adjusting rod (3-1) 4) The pulley slider seat (3-13) is slidably connected to the pulley slider seat (3-13). The pulley slider seat pressure plate (3-4) is slidably connected in the limiting groove (3-18). The pulley slider seat (3-13) is provided with a pulley fixing seat (3-8). The pulley fixing seat (3-8) is provided with a synchronous pulley (3-9) on the outside. The pulley slider seat pressure plate (3-4) is also provided with a running groove. The synchronous pulley (3-9) is located inside the running groove. The two synchronous pulleys (3-9) are connected by a synchronous belt (3-5). The inner side of the synchronous belt (3-5) is movably connected to the outer side of the synchronous pulley (3-9).

4. The portable coarse wire submerged arc welding machine according to claim 1, characterized in that: The welding torch adjustment mechanism (5) includes a horizontal adjustment component (5-2), a vertical adjustment component (5-1), and a welding torch clamping component (5-3). A horizontal adjustment seat (5-11) is provided on the rail connecting plate (2-5). The horizontal adjustment seat (5-11) is fixedly connected to one end of the horizontal adjustment rod (5-5). A horizontal adjustment assembly (5-2) is sleeved on the horizontal adjustment rod (5-5). A vertical adjustment assembly (5-1) is provided on one side of the horizontal adjustment assembly (5-2). A vertical adjustment rod (5-10) is movably inserted into the vertical adjustment assembly (5-1). An adjustment knob (5-4) is rotatably connected to the top of the vertical adjustment assembly (5-1). A connecting screw is provided at the bottom of the adjustment knob (5-4). The connecting screw is threadedly connected to the vertical adjustment rod (5-10). The bottom end of 0) is provided with a welding torch clamping assembly (5-3). The welding torch clamping assembly (5-3) is provided with a fixed clamping seat (5-6). A movable clamping arm (5-7) is hinged on the fixed clamping seat (5-6). A locking bolt (5-8) is rotatably connected to the end of the fixed clamping seat (5-6) away from the hinge point. A notch is opened on the movable clamping arm (5-7). The locking bolt (5-8) is inserted into the notch of the movable clamping arm (5-7). A locking nut (5-9) is rotatably connected to one end of the locking bolt (5-8). The locking nut (5-9) abuts against the movable clamping arm (5-7). The fixed clamping seat (5-6) and the movable clamping arm (5-7) cooperate to clamp the welding torch (7-3).

5. The portable coarse wire submerged arc welding machine according to claim 1, characterized in that: The flux circulation mechanism (6) includes a flux tank (6-1), a sand-feeding device (6-2), and a flux recovery component (6-3). Both sides of the flux tank (6-1) are provided with support frames (6-4), which are fixedly connected to the rail assembly (2-4). The upper end of the sand-feeding device (6-2) is connected to the flux tank (6-1), and the lower end corresponds to the sand-feeding mechanism (3).

6. The portable coarse wire submerged arc welding machine according to claim 1, characterized in that: The wire feeding mechanism (7) includes a wire feeder frame (7-6), a wire feeder (7-5), a wire feeding tube (7-1), and a wire feeding tube fixing component (7-2); the wire feeding mechanism (7) is connected to the traveling vehicle body mechanism (1) through a control box mechanism (8) and a guide mechanism (2); A wire feeder (7-5) is installed on the upper side of the wire feeder frame (7-6). The wire feeder (7-5) is covered by a wire feeder protective cover (7-4). The wire feeder frame (7-6) is connected to the track plate (2-3) through the rail assembly (2-4) and the hook wheel (2-6) and is pulled synchronously by the traveling vehicle mechanism (1). The wire feeder tube fixing component (7-2) restricts the shaking of the wire feeder tube (7-1). The wire feeder (7-5) feeds the welding wire to the welding gun (7-3) through the wire feeder tube (7-1).

7. The portable coarse wire submerged arc welding machine according to claim 1, characterized in that: The control box mechanism (8) includes a control box (8-1), a circuit board (8-2), and a wing screw (8-3). The control box (8-1) is fixed on the rail assembly (2-4) via an adapter square tube (8-4). The wing screw (8-3) connects the control box (8-1) and the adapter square tube (8-4). The circuit board (8-2) is electrically connected to the motor (1-31) and the wire feeder (7-5) of the drive mechanism (1-3).

8. The portable coarse wire submerged arc welding machine according to claim 1, characterized in that: A top wheel assembly is provided on the sand-supporting fixing plate (3-1). The top wheel assembly includes a top wheel screw (3-2). The top wheel screw (3-2) is threadedly connected to the sand-supporting fixing plate (3-1). A tensioning element (3-17) is rotatably connected to one end of the top wheel screw (3-2) that extends into the sand-supporting fixing plate (3-1). The tensioning element (3-17) includes a top wheel slider and a top wheel. The top wheel slider is movably inserted into the sand-supporting fixing plate (3-1). The top wheel presses against the timing belt (3-5).

9. The portable coarse wire submerged arc welding machine according to claim 3, characterized in that: The sand-collecting mechanism (3) also includes a dust baffle (3-6) and a pressure strip (3-7), with the dust baffle (3-6) pressed against the surface of the panel (3-3) of the sand-collecting mechanism (3) by the pressure strip (3-7).

10. The portable coarse wire submerged arc welding machine according to claim 1, characterized in that: The sand-supporting mechanism (3) also includes two circular magnet assemblies. The circular magnet assembly includes a circular magnet (3-12) and a synchronous gear (3-5). One end of the synchronous pulley (3-9) is provided with a circular magnet (3-12). The synchronous gear (3-5) is connected to the circular magnet (3-12) through a synchronous gear adapter block (3-11). One side of the inner side of the synchronous belt (3-5) is provided with a stepped part. The stepped part of the synchronous belt (3-5) is continuous and forms an annular belt structure. The stepped part of the synchronous belt (3-5) meshes with the synchronous gear (3-5). The diameter of the synchronous gear (3-5) is smaller than the diameter of the synchronous pulley (3-9). The circular magnet (3-12) magnetically attracts the welding workpiece.

Images