An automated welding apparatus and process for arc-shaped metal parts

Abstract

The present application relates to the field of metal welding equipment, in particular to an automatic welding equipment and process for arc-shaped metal parts, wherein the automatic welding equipment for arc-shaped metal parts comprises a track assembly. The track assembly comprises a plurality of track units arranged along a preset welding path. By splicing and combining a plurality of independent track units, an arc-shaped track for guiding the movement of a welding gun is formed, thereby improving the overall structural rigidity of the arc-shaped track, avoiding deformation of the arc-shaped track during welding, and improving the accuracy of the welding gun's travel trajectory.

Description

Technical Field

[0001] This invention relates to the field of metal welding equipment, and in particular to an automated welding equipment and process for arc-shaped metal parts. Background Technology

[0002] Automatic welding equipment for arc-shaped circumferential seams is an automated welding device for the industrial field designed for arc-shaped circumferential welds. It can replace manual labor to complete the precise welding of components such as arc-shaped reinforcing ribs and load-bearing ring plates, greatly improving welding efficiency and quality stability. It is suitable for various operating scenarios such as steel structure plants, shipyards, and long-distance pipelines.

[0003] The automatic arc-shaped circumferential weldment equipment uses a welding carriage as its core, equipped with a flexible track adapted to the arc-shaped weld seam. The flexible track is attached to the workpiece surface by a strong magnet. Some automatic arc-shaped circumferential weldment equipment also includes height and horizontal distance adjustment mechanisms to accommodate workpieces of different specifications. In use, the flexible track is first laid and fixed according to the weld seam curvature. Then, the welding carriage is installed on the flexible track, the welding torch is clamped onto the welding carriage, and the welding angle and parameters are adjusted. Finally, the welding equipment is started, and the welding carriage automatically moves at a uniform speed along the flexible track to complete the all-position welding operation. The entire process requires no manual control of the movement trajectory, reducing the labor intensity of welders while ensuring uniform weld formation and good fusion.

[0004] However, the flexible tracks used in traditional automatic arc-shaped circumferential welding equipment are prone to deformation under prolonged use. Deformation of the flexible track directly disrupts the preset travel trajectory of the welding carriage, causing the carriage to deviate from its intended path as it travels along the flexible track. This leads to welding torch positioning deviations and severely affects the stability and consistency of welding quality. Summary of the Invention

[0005] Therefore, it is necessary to provide an automated welding equipment and process for arc-shaped metal parts to address the problem that the flexible track of the current automatic welding equipment for arc-shaped circumferential seams is prone to deformation, which leads to a decline in weld quality.

[0006] The above objectives are achieved through the following technical solutions:

[0007] An automated welding device for arc-shaped metal parts, comprising:

[0008] A welding assembly for welding workpieces.

[0009] A track assembly comprising multiple track units arranged along a preset welding path to form an arc-shaped track for guiding the welding assembly to move along the welding path.

[0010] A fixing component for fixing the plurality of track units to the workpiece.

[0011] Furthermore, the track unit includes track plates, a plurality of track plates are arranged sequentially along the welding path, and adjacent track plates are rotatably connected to adaptively form the arc-shaped track that matches the contour of the workpiece.

[0012] Furthermore, the track unit also includes a mounting plate and a support wheel. The mounting plate is fixedly connected to the track plate, and the support wheel is rotatably connected to the mounting plate. The support wheel can abut against the surface of the workpiece.

[0013] Furthermore, the track unit also includes a rotating plate and abutting wheels. The rotating plate is rotatably connected to one end of the track plate. Two abutting wheels are provided, which are symmetrically arranged about the axis of the rotating plate. Each abutting wheel is rotatably connected to the rotating plate, and the two abutting wheels can abut against the surface of the workpiece.

[0014] Furthermore, the fixing component includes a first elastic band, a second elastic band, and a snap-fit ​​unit. One end of the first elastic band is connected to the track plate located on one side, and one end of the second elastic band is connected to the track plate located on the other side. The snap-fit ​​unit is used to detachably connect the first elastic band and the second elastic band, and uses the elasticity of the first elastic band and the second elastic band to abut the multiple track plates against the surface of the workpiece.

[0015] Furthermore, the buckle unit includes a first buckle and a second buckle, the first buckle being connected to the first elastic band; the second buckle being connected to the second elastic band, and the second buckle being able to be embedded in the first buckle.

[0016] Furthermore, the tension of the first elastic band and / or the second elastic band can be adjusted to adapt the plurality of track plates to the workpiece surface with different curvatures.

[0017] Furthermore, the first buckle is provided with a pressing block and a first elastic element. The pressing block is slidably connected to the first buckle, and the first elastic band passes between the pressing block and the first buckle. The elastic force of the first elastic element always makes the first buckle and the pressing block move closer to each other.

[0018] Furthermore, the latching unit also includes a second elastic element, which is used to reflect the curvature of the plurality of track plates according to its tensile state.

[0019] The present invention also provides an automated welding process for arc-shaped metal parts, and an automated welding device for performing any of the above-described arc-shaped metal parts, comprising the following steps:

[0020] S100, multiple track units are arranged sequentially along the preset welding path to form a continuous arc track.

[0021] S200, the multiple track units are fixed to the surface of the workpiece by the fixing component, so that the multiple track units are in contact with the surface of the workpiece.

[0022] S300, the welding assembly is started, causing it to move along the arc-shaped track formed by the plurality of track units to perform automated welding on the workpiece.

[0023] S400, after welding is completed, stop the welding assembly, release the fixing assembly, and remove the multiple track units from the surface of the workpiece.

[0024] The beneficial effects of this invention are:

[0025] This invention provides an automated welding equipment and process for arc-shaped metal parts. The automated welding equipment for arc-shaped metal parts includes a welding assembly, a track assembly, and a fixing assembly. The welding assembly is used to weld the workpiece. The track assembly includes multiple track units arranged sequentially along a preset welding path. These track units are spliced ​​and combined to form an arc-shaped track adapted to the arc-shaped weld, providing a precise guiding foundation for the movement of the welding torch. Disassembling the arc-shaped track into multiple independent modules improves the overall structural rigidity of the arc-shaped track, preventing track deformation and ensuring that the welding torch always moves smoothly along the preset welding path, significantly improving the accuracy of the welding torch's trajectory. The fixing assembly uses elasticity to quickly fix the multiple track units, ensuring that the track units fit tightly against the workpiece surface and are locked in place. This allows for rapid fixing and disassembly of multiple track units on the workpiece surface, reducing the material and processing / assembly costs required to fix multiple track units. Attached Figure Description

[0026] Figure 1 A schematic diagram of the structure of an automated welding equipment for arc-shaped metal parts provided in an embodiment of the present invention;

[0027] Figure 2 for Figure 1 Top view of the structure shown;

[0028] Figure 3 for Figure 2 A cross-sectional view along the AA direction;

[0029] Figure 4 An exploded view of a fixing component in an automated welding device for arc-shaped metal parts, provided in an embodiment of the present invention;

[0030] Figure 5A schematic diagram of the structure of a welding assembly in an automated welding device for arc-shaped metal parts provided in an embodiment of the present invention;

[0031] Figure 6 This is a schematic diagram of the welding assembly in an automated welding device for arc-shaped metal parts, provided as an embodiment of the present invention, from another perspective.

[0032] in:

[0033] 110. Workpiece;

[0034] 210. Bearing plate; 211. Clutch plate; 220. Traveling wheel; 221. Rotating shaft; 230. Transmission wheel; 240. Drive motor; 250. Rotating rod; 260. Adjusting rod; 261. Adjusting plate; 270. Adjusting bolt; 280. Actuating plate; 281. Angle bracket; 290. Welding torch;

[0035] 310. Track plate; 311. Through hole; 320. Mounting plate; 321. Support wheel; 330. Rotating plate; 331. Abutment wheel;

[0036] 411. First elastic band; 412. Second elastic band; 420. First buckle; 421. Pressing block; 422. First spring; 423. Second tension spring; 424. Conducting block; 430. Second buckle. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0038] The component designations used in this document, such as "first" and "second," are merely for distinguishing the described objects and do not have any sequential or technical meaning. The terms "connection" and "linkage" used in this invention, unless otherwise specified, include both direct and indirect connections (linkages). It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0039] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0040] The following reference Figures 1 to 6 This invention describes an automated welding device for arc-shaped metal parts, comprising a welding assembly, a track assembly, and a fixing assembly.

[0041] Specifically, the welding assembly includes a support plate 210, a walking unit, an adjustment unit, and a welding torch 290.

[0042] The support plate 210 is used to provide stable support for the assembly of the walking unit, the adjustment unit and the welding torch 290.

[0043] The walking unit includes multiple walking wheels 220, transmission wheels 230, drive motor 240, and rotating rod 250.

[0044] Multiple traveling wheels 220 are rotatably connected to the bottom of the support plate 210 and are evenly and symmetrically distributed along the moving direction of the support plate 210. Two symmetrically arranged traveling wheels 220 are fixedly connected by a rotating shaft 221. A drive wheel 230 is coaxially and fixedly installed in the middle of the rotating shaft 221. A drive motor 240 is fixed to the top surface of the support plate 210, and a friction head is provided at the end of its output shaft. The friction head abuts against the inclined surface of the drive wheel 230, and drives the drive wheel 230, the rotating shaft 221, and the traveling wheels 220 to rotate synchronously through friction.

[0045] The rotating shaft 221 can also slide relative to the support plate 210 along its own axial direction, and an extension plate extends from the end of the rotating shaft 221 toward the top surface of the support plate 210. A base for providing an installation position for the rotating rod 250 is fixedly provided on the top surface of the support plate 210. One end of the rotating rod 250 is rotatably connected to the base on the support plate 210, and the other end is threadedly connected to the extension plate extending from the end of the rotating shaft 221. Twisting the rotating rod 250 can drive the rotating shaft 221 to move axially, causing the transmission wheel 230 and the output shaft of the drive motor 240 to move away from or closer to each other, thereby allowing the traveling wheel 220 to rotate freely, facilitating manual adjustment of the position of the support plate 210.

[0046] The adjustment unit includes an adjustment plate 261, an adjustment rod 260, an adjustment bolt 270, and an actuator plate 280.

[0047] The adjusting plate 261 is slidably connected to the top surface of the support plate 210 and can move along the length of the support plate 210. A rack is provided on the side wall of the adjusting plate 261. The adjusting rod 260 is vertically arranged and rotatably connected to the support plate 210. The rod body of the adjusting rod 260 is configured as a gear structure, which meshes with the rack on the side wall of the adjusting plate 261. Turning the adjusting rod 260 can drive the adjusting plate 261 to move along the length of the support plate 210.

[0048] A connecting block is fixedly installed at the end of the adjusting plate 261. The adjusting bolt 270 is rotatably connected to the connecting block at the end of the adjusting plate 261. The actuator plate 280 is threadedly engaged with the rod of the adjusting bolt 270. When the adjusting bolt 270 is turned, the actuator plate 280 can be moved along the height direction of the bearing plate 210.

[0049] An angle bracket 281 is rotatably mounted on the side wall of the execution plate 280. The welding torch 290 is fixedly connected to the angle bracket 281. By adjusting the relative angle between the angle bracket 281 and the execution plate 280, the welding tilt angle of the welding torch 290 can be precisely adjusted, ensuring that the angle between the welding nozzle of the welding torch 290 and the circumferential welding area of ​​the workpiece 110 matches the welding process requirements. This enables multi-dimensional adjustment of the spatial position of the welding torch 290, ensuring that the welding nozzle of the welding torch 290 is precisely aligned with the circumferential welding area of ​​the workpiece 110. Consequently, the welding torch 290 can complete the filling welding and forming operation of the workpiece 110 along the preset weld path, guaranteeing the weld fusion quality and forming accuracy.

[0050] The track assembly includes multiple track units, each track unit including a track plate 310, a mounting plate 320, a support wheel 321, a rotating plate 330, and an abutment wheel 331.

[0051] The track plate 310 is a rigid plate structure. Multiple track plates 310 are arranged sequentially along a preset welding path, and adjacent track plates 310 are rotatably connected by hinge rods. Multiple track plates 310 are spliced ​​together to form an arc-shaped track for guiding the movement of the support plate 210, meeting the welding requirements of arc-shaped welds with different curvature specifications. Each track plate 310 has multiple through holes 311 evenly distributed on both sides. The size of the through holes 311 matches the teeth of the traveling wheels 220, and the teeth of the traveling wheels 220 can fit into the gaps between adjacent track plates 310. Multiple track plates 310 provide stable trajectory guidance for the support plate 210 and the welding torch 290. Therefore, by replacing the integrated flexible track with multiple track plates 310, the overall rigidity of the arc-shaped track can be significantly improved. During welding, the track plates 310 can maintain the stability of the preset welding path, thereby ensuring the accuracy of the movement of the support plate 210 along the multiple track plates 310, ensuring that the welding torch 290 is always accurately aligned with the weld area, and achieving stable weld formation quality. Furthermore, the number of track plates 310 can be freely increased or decreased according to the actual welding path length to adjust the overall length of the arc track, improving the adaptability of the welding equipment to workpieces 110 of different specifications. Moreover, individual damaged track plates 310 can be replaced separately, reducing the maintenance cost and downtime of the welding equipment.

[0052] A clutch plate 211 is also installed on the lower wall of the support plate 210. The clutch plate 211 has an end-face friction structure. Its upper end is fixedly connected to the lower wall of the support plate 210, and its lower end can be tightly fitted with the lower wall of the track plate 310. When the clutch plate 211 is in the engaged state, its end face is fitted with the lower wall of the track plate 310, thereby locking the support plate 210 and the track plate 310. This ensures that the support plate 210 drives the welding torch 290 to move smoothly along the preset welding path, ensuring the accuracy of the welding trajectory. When the clutch plate 211 is in the disengaged state, its end face is disengaged from the track plate 310. At this time, the connection between the support plate 210 and the track plate 310 is broken, so as to realize the quick disassembly, repositioning or maintenance of the support plate 210.

[0053] The mounting plate 320 has a rectangular frame structure and is fixedly installed at the middle position of the track plate 310 facing the workpiece 110. The support wheel 321 is rotatably connected to the mounting plate 320. The wheel surface of the support wheel 321 can fit tightly against the surface of the workpiece 110. The support wheel 321 is used to provide stable support for the track plate 310 during the welding process, preventing the track plate 310 from sinking or shifting, and further ensuring the overall stability of the arc track position.

[0054] The rotating plate 330 has a frame structure, with its upper end rotatably connected to a hinge rod between adjacent track plates 310, and its lower end extending towards the surface of the workpiece 110. Two abutment wheels 331 are provided, symmetrically distributed about the vertical centerline of the rotating plate 330, and both rotatably connected to the rotating plate 330. The wheel surfaces of the abutment wheels 331 can tightly abut against the surface of the workpiece 110 to prevent relative displacement of adjacent track plates 310 during welding, ensuring the angular stability of the connection position of adjacent track plates 310, preventing arc distortion of the curved track, and ensuring the overall fit of the curved track with the preset welding path.

[0055] The fixing assembly includes a first elastic band 411, a second elastic band 412, and a snap-fit ​​unit. Both the first elastic band 411 and the second elastic band 412 are highly elastic and wear-resistant rubber bands. One end of the first elastic band 411 is movably connected to the right end of the rightmost track plate 310, and one end of the second elastic band 412 is movably connected to the left end of the leftmost track plate 310. The snap-fit ​​unit includes a first snap-fit ​​420 and a second snap-fit ​​430. The first snap-fit ​​420 has a concave slot structure and is connected to the other end of the first elastic band 411; the second snap-fit ​​430 has a convex block structure and is connected to the other end of the second elastic band 412. The second snap-fit ​​430 can be embedded in the internal slot of the first snap-fit ​​420 and achieve a detachable fixed connection with the first snap-fit ​​420. This enables the rapid fixing and installation of multiple track plates 310 on the surface of the workpiece 110, reducing the material and processing / assembly costs required for fixing multiple track plates 310.

[0056] In particular, because the multiple track plates 310 can adaptively conform to the arcuate contour of the workpiece 110 surface, this structure can reduce the tension required by the first elastic band 411 and the second elastic band 412, reduce the tensile loss of the first elastic band 411 and the second elastic band 412, and extend their service life. At the same time, the fixing tension applied by the first elastic band 411 and the second elastic band 412 to the multiple track plates 310 is evenly transmitted to each track plate 310, so that the pressure exerted by each track plate 310 on the surface of the workpiece 110 is uniform and consistent, avoiding damage to the surface of the workpiece 110 caused by local pressure concentration.

[0057] Furthermore, in order to achieve precise adjustment of the overall curvature of the arc-shaped track formed by multiple track plates 310, the first buckle 420 is provided with a clamping block 421 and a first elastic element.

[0058] The clamping block 421 is a block-shaped structure with a sliding groove extending along its own axis on its side wall. The outer wall of the first buckle 420 is provided with a sliding block that mates with the sliding groove. The sliding block can be embedded in the sliding groove to achieve a sliding connection between the clamping block 421 and the first buckle 420. The first elastic band 411 passes through the gap between the clamping block 421 and the first buckle 420. A roller is rotatably mounted on the clamping block 421. The surface of the roller makes rolling contact with the surface of the first elastic band 411 to convert the sliding friction between the clamping block 421 and the first elastic band 411 into rolling friction, thereby reducing the wear caused by friction on the first elastic band 411.

[0059] The first elastic element is set as a first spring sheet 422, which is made of high-strength elastic metal material. One end of the first spring sheet 422 is fixedly connected to the groove wall of the sliding groove of the pressing block 421, and the other end is fixedly connected to the sliding block on the first buckle 420. The elastic force of the first spring sheet 422 always makes the first buckle 420 and the pressing block 421 tend to move closer to each other. Thus, the pressing block 421 and the first buckle 420 together form a stable pressing and positioning of the first elastic band 411, ensuring the stable tension of the first elastic band 411.

[0060] When the curvature of multiple track plates 310 needs to be adjusted, an external force is applied to the first latch 420 away from the clamping block 421. This external force overcomes the elasticity of the first spring piece 422, driving the first latch 420 and the clamping block 421 to move away from each other, releasing the clamping state of the first latch 420 and the clamping block 421 on the first elastic band 411. The first elastic band 411 can then move freely relative to the first latch 420 to adjust the effective tension length of the first elastic band 411, thereby making the curvature of the arc-shaped track formed by the multiple track plates 310 match the arc-shaped weld contour of the workpiece 110. When the arc-shaped weld curvature of the workpiece 110 is large, a good rigid support effect can be formed between the multiple track plates 310. At this time, excessive tension is not required to maintain the overall arc-shaped contour of the arc-shaped track. Therefore, the tension of the first elastic band 411 can be appropriately reduced based on actual support requirements to avoid excessive stretching deformation of the track plates 310 due to excessive tension, thus ensuring the overall structural stability of the arc-shaped track. When the curvature of the arc weld of workpiece 110 is small, the arc track as a whole requires a larger constraint force to conform to the small curvature arc contour of workpiece 110. At this time, the tension of the first elastic band 411 can be increased to make the multiple track plates 310 fit tightly against the contour of workpiece 110.

[0061] Once the adjustment is complete and the external force is removed, the first spring plate 422, under its own elastic restoring force, drives the pressing block 421 and the first buckle 420 to quickly approach each other, and re-establish a stable pressing and positioning of the first elastic band 411.

[0062] Furthermore, to facilitate observation of the curvature of the multiple track plates 310, the snap-fit ​​unit also includes a second elastic element, which is used to reflect the curvature of the multiple track plates 310 according to its tension state.

[0063] Specifically, a transmission block 424 is provided between the first buckle 420 and the pressing block 421. The pressing block 421 is slidably connected to the transmission block 424, and the first elastic band 411 passes through the gap between the pressing block 421 and the transmission block 424. One end of the first spring piece 422 is fixedly connected to the pressing block 421, and the other end is fixedly connected to the transmission block 424, thereby achieving stable pressing and positioning of the first elastic band 411 through the pressing block 421 and the transmission block 424.

[0064] The end of the conductive block 424 away from the pressing block 421 extends a sliding rod fixedly toward the end face of the first buckle 420. The end of the first buckle 420 toward the conductive block 424 is provided with a sliding hole, and the sliding rod can be inserted into the sliding hole of the first buckle 420 to realize the axial sliding connection between the conductive block 424 and the first buckle 420.

[0065] The second elastic element is a second tension spring 423, which is coaxially sleeved on the outside of the sliding rod. One end of the spring is fixedly connected to the end face of the transmission block 424, and the other end is fixedly connected to the end face of the first buckle 420. The elastic force of the second tension spring 423 always makes the transmission block 424 and the first buckle 420 approach each other.

[0066] When the curvature of the multiple track plates 310 increases, the tension of the first elastic band 411 is in a smaller range. Under the action of its own elastic force, the second tension spring 423 causes the transmission block 424 to move closer to the first buckle 420, and the extension and contraction of the second tension spring 423 decreases accordingly. When the curvature of the multiple track plates 310 decreases, the tension of the first elastic band 411 increases. The first elastic band 411 drives the transmission block 424 to overcome the elastic force of the second tension spring 423, causing the transmission block 424 to move away from the first buckle 420 along the sliding rod axis, and the extension and contraction of the second tension spring 423 increases accordingly.

[0067] Therefore, the change in curvature of the arc-shaped track formed by multiple track plates 310 will cause a change in the tension of the first elastic band 411, which in turn will drive the sliding rod to move axially along the first buckle 420 through the transmission block 424, changing the extension and contraction of the second tension spring 423. Workers can quickly determine the overall curvature of the arc-shaped track formed by multiple track plates 310 by directly observing the extension and contraction state of the second tension spring 423, without the need for additional measuring tools, thus improving the convenience and accuracy of adjusting the curvature of the arc-shaped track.

[0068] This invention also provides an automated welding process for arc-shaped metal parts, applied to the automated welding equipment for arc-shaped metal parts described in the above embodiments, comprising the following steps:

[0069] S100, Welding equipment preparation and preliminary installation of the curved track.

[0070] S110, based on the curvature and length of the arc weld of workpiece 110, select an appropriate number of track plates 310, and connect multiple track plates 310 in sequence through hinge rods to form a preliminary arc track structure.

[0071] S120, clean the welding area on the surface of workpiece 110 to ensure that there are no impurities such as oil stains and rust that may affect the welding quality and the fit of the curved track.

[0072] S130, the connected track plates 310 are attached to the arc-shaped surface of the workpiece 110, so that the support wheel 321 and the abutment wheel 331 are in contact with the surface of the workpiece 110, and the overall curvature of the arc-shaped track is initially adjusted by visual inspection so that it roughly matches the weld path.

[0073] S200, with fixed arc track and fine-tuning curvature.

[0074] S210, connect one end of the first elastic band 411 to the rightmost track plate 310, and connect one end of the second elastic band 412 to the leftmost track plate 310.

[0075] S220, the second buckle 430 is inserted into the first buckle 420, so that the first elastic band 411 and the second elastic band 412 form a closed tensioning ring, initially tightening the multiple track plates 310.

[0076] S230, observe the extension and contraction state of the second tension spring 423 to determine whether the curvature of the current arc track matches the actual curvature of the workpiece 110. If the second tension spring 423 is in a moderately stretched state, it indicates that the curvature is suitable, and S240 is executed; if the second tension spring 423 is overstretched or understretched, it indicates that the curvature is too large or too small, and S231 is executed.

[0077] S231, apply external force to the first buckle 420 to separate the pressing block 421 from the transmission block 424 and release the lock on the first elastic band 411.

[0078] S232, adjust the effective length of the first elastic band 411 according to the direction of curvature deviation. If the curvature is too large, loosen the first elastic band 411 appropriately; if the curvature is too small, tighten the first elastic band 411 appropriately.

[0079] S233, release the external force, so that the clamping block 421, under the action of the second tension spring 423, re-presses the first elastic band 411, and completes the curvature locking.

[0080] S234, return to S230, and re-evaluate the curvature state.

[0081] S240 completes the final fixation and curvature matching of the arc track on workpiece 110.

[0082] S300, Welding assembly installation and alignment.

[0083] S310, align the traveling wheel 220 with the through hole 311 on the track plate 310, ensuring that the teeth of the traveling wheel 220 mesh with the through hole 311, and place the bearing plate 210 stably on the arc track.

[0084] S320, operate the clutch plate 211 to put it in the engaged state, so that the lower end face of the clutch plate 211 is tightly attached to the lower wall surface of the track plate 310, thereby locking the bearing plate 210 and the track plate 310.

[0085] S330, rotate the adjusting rod 260 to move the adjusting plate 261 along the length of the bearing plate 210, and initially position the welding gun 290 on the weld.

[0086] S340, rotate the adjusting bolt 270 to move the actuator plate 280 along the height direction, so that the welding nozzle of the welding gun 290 is aligned with the root of the weld, thus completing the vertical alignment.

[0087] S350, Adjustment angle bracket 281, Set the appropriate tilt angle of welding torch 290 relative to the weld.

[0088] S360, start the drive motor 240, so that the friction head contacts the transmission wheel 230, and drive the walking wheel 220 to run a short distance along the arc track. Observe whether the welding torch 290 is always aligned with the weld. If there is a deviation, return to S330 or S340 for fine adjustment.

[0089] S400, Welding parameter settings and arc initiation.

[0090] S410 sets appropriate parameters such as current, voltage, and wire feed speed on the welding power source according to the material, thickness, and weld type of the workpiece 110.

[0091] S420: Load the welding wire into the external wire feeding mechanism, check the gas path for blockage, and ensure a normal supply of protective gas.

[0092] S430, perform a trial weld at the start of the weld to observe the formation of the molten pool and the weld formation. If necessary, fine-tune the welding parameters or the welding torch angle to 290 degrees.

[0093] S440, after confirming that everything is normal, reset the welding torch 290 to the weld start point and prepare for formal welding.

[0094] S500, automatic welding execution.

[0095] S510, start drive motor 240, the support plate 210 moves along multiple track plates 310 at a constant speed, and welding gun 290 begins fill welding.

[0096] During the welding process, the operator can observe the weld formation and the state of the molten pool, and if necessary, pause the equipment to fine-tune the position of the welding torch 290 or the welding parameters.

[0097] S530, when the support plate 210 moves to the end of multiple track plates 310, the drive motor 240 automatically stops, completing a single-pass welding.

[0098] S540, if it is a multi-pass welding, repeat S500-S530 until the weld reaches the specified thickness and forming requirements.

[0099] S600, welding completed and welding equipment disassembly.

[0100] S610, shut off the welding power supply and wire feeding mechanism, and stop the supply of protective gas.

[0101] S620, operate the clutch plate 211 to put it in the disengaged state, so that the lower end face of the clutch plate 211 is no longer in contact with the track plate 310, and the locking between the bearing plate 210 and the track plate 310 is released.

[0102] S630, rotate the rotating rod 250 to separate the transmission wheel 230 from the output shaft of the drive motor 240, so that the walking wheel 220 can rotate freely.

[0103] S640, push the support plate 210 back to the starting position along the multiple track plates 310, or lift and move it directly.

[0104] S650, release the connection between the first buckle 420 and the second buckle 430, loosen the first elastic band 411 and the second elastic band 412, and disassemble each track plate 310 in sequence.

[0105] S660: Clean the slag and spatter from the surface of workpiece 110, inspect the weld quality, and complete this welding operation.

[0106] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0107] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. An automated welding device for arc-shaped metal parts, characterized in that, include: A welding assembly for welding a workpiece; A track assembly comprising multiple track units arranged along a preset welding path to form an arc-shaped track for guiding the welding assembly to move along the welding path; A fixing component for fixing the plurality of track units to the workpiece.

2. The automated welding equipment for arc-shaped metal parts according to claim 1, characterized in that, The track unit includes track plates, and multiple track plates are arranged sequentially along the welding path. Adjacent track plates are rotatably connected to form an arc-shaped track that adapts to the contour of the workpiece.

3. The automated welding equipment for arc-shaped metal parts according to claim 2, characterized in that, The track unit also includes a mounting plate and a support wheel. The mounting plate is fixedly connected to the track plate, and the support wheel is rotatably connected to the mounting plate. The support wheel can abut against the surface of the workpiece.

4. The automated welding equipment for arc-shaped metal parts according to claim 2, characterized in that, The track unit further includes a rotating plate and abutting wheels. The rotating plate is rotatably connected to one end of the track plate. There are two abutting wheels, which are symmetrically arranged about the axis of the rotating plate. Each abutting wheel is rotatably connected to the rotating plate, and the two abutting wheels can abut against the surface of the workpiece.

5. The automated welding equipment for arc-shaped metal parts according to claim 2, characterized in that, The fixing component includes a first elastic band, a second elastic band, and a buckle unit. One end of the first elastic band is connected to the track plate located on one side, and one end of the second elastic band is connected to the track plate located on the other side. The buckle unit is used to detachably connect the first elastic band and the second elastic band, and uses the elasticity of the first elastic band and the second elastic band to abut the multiple track plates against the surface of the workpiece.

6. The automated welding equipment for arc-shaped metal parts according to claim 5, characterized in that, The buckle unit includes a first buckle and a second buckle. The first buckle is connected to the first elastic band, and the second buckle is connected to the second elastic band. The second buckle can be embedded in the first buckle.

7. The automated welding equipment for arc-shaped metal parts according to claim 6, characterized in that, The tension of the first elastic band and / or the second elastic band can be adjusted to adapt the plurality of track plates to the workpiece surface with different curvatures.

8. The automated welding equipment for arc-shaped metal parts according to claim 7, characterized in that, The first buckle is provided with a pressing block and a first elastic element. The pressing block is slidably connected to the first buckle, and the first elastic band passes between the pressing block and the first buckle. The elastic force of the first elastic element always makes the first buckle and the pressing block move closer to each other.

9. The automated welding equipment for arc-shaped metal parts according to claim 7, characterized in that, The latching unit further includes a second elastic element, which is used to reflect the curvature of the plurality of track plates according to its tension state.

10. An automated welding process for arc-shaped metal parts, used to perform the automated welding equipment for arc-shaped metal parts according to any one of claims 1-9, characterized in that, Includes the following steps: S100, multiple track units are arranged sequentially along the preset welding path to form a continuous arc track; S200, the multiple track units are fixed to the workpiece surface by the fixing component, so that the multiple track units are in contact with the workpiece surface; S300, the welding assembly is started, causing it to move along the arc-shaped track formed by the plurality of track units to perform automated welding on the workpiece; S400, after welding is completed, stop the welding assembly, release the fixing assembly, and remove the multiple track units from the surface of the workpiece.

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