Welding device and process for a sunroof support

Abstract

The application provides a skylight support welding device and process, and relates to the technical field of skylight support processing. The device comprises a dust removal mechanism, a limiting mechanism, a welding mechanism, a spraying mechanism and a controller. The limiting mechanism is arranged at the top surface of the dust removal mechanism, the welding mechanism is arranged on the top surface of the dust removal mechanism, the spraying mechanism is arranged on the side surface of the welding mechanism, and the controller is electrically connected with each mechanism to realize linkage control. The dust removal mechanism can collect welding fume in real time, the limiting mechanism can self-adaptively clamp skylight supports of different specifications, the welding mechanism can realize accurate welding through multidirectional movement, and the spraying mechanism can quickly cool the workpiece after welding. The application solves the technical problems of existing skylight support welding equipment, such as large smoke pollution, unstable workpiece limiting, low welding precision and low cooling efficiency, improves the welding quality and processing efficiency, reduces the manual operation strength, is suitable for welding processing of skylight supports of various specifications, and has good practicality and universality.

Description

Technical Field

[0001] This invention belongs to the field of sunroof bracket processing technology, specifically, it relates to a welding device and process for a sunroof bracket. Background Technology

[0002] As the core load-bearing component of the sunroof system, the welding quality of the sunroof bracket directly determines the installation stability, structural strength, and service life of the sunroof. It must meet the requirements of being free of welding defects such as slag inclusions, lack of fusion, and porosity, while ensuring that the mechanical properties of the welded joint meet the design requirements.

[0003] The existing equipment has the following drawbacks: First, the large amount of fumes generated during welding are directly dispersed into the processing environment, polluting the work environment and endangering the health of operators. The existing simple dust removal structure has low dust removal efficiency and cannot achieve real-time and efficient collection of fumes. Second, the existing limiting mechanisms are mostly fixed structures, which can only be adapted to a single specification of sunroof bracket. For sunroof brackets of different sizes and thicknesses, the limiting accessories need to be replaced, which is cumbersome. Moreover, the limiting clamping is not firm, and the workpiece is prone to displacement during welding, resulting in reduced welding accuracy. Third, the welding mechanism has poor mobility and adjustment, mostly moving in one or two directions, which cannot achieve multi-directional precise movement of the welding torch. It is difficult to adapt to sunroof brackets with complex welding trajectories, resulting in high manual intervention and low welding efficiency. Fourth, after welding, the workpiece is mostly cooled naturally, which has low cooling efficiency. This not only prolongs the processing cycle but also easily causes stress deformation of the weld joint due to uneven cooling, affecting the welding quality. Summary of the Invention

[0004] The purpose of this invention is to provide a welding device for a sunroof bracket, which solves the technical problem that a large amount of fumes generated during the welding process are directly dispersed into the processing environment, which not only pollutes the working environment but also endangers the health of the operators. Existing simple dust removal structures have low dust removal efficiency and cannot achieve real-time and efficient collection of fumes.

[0005] At least one embodiment of the present invention provides a welding device for a sunroof bracket, comprising: a dust removal mechanism, a limiting mechanism, a welding mechanism, a spraying mechanism, and a controller. The limiting mechanism is located at the four corners of the top surface of the dust removal mechanism, the welding mechanism is located on the top surface of the dust removal mechanism, the spraying mechanism is located on the side of the welding mechanism, and the controller is located on the side of the welding mechanism. The dust removal mechanism includes a base, connectors, a conical hood, a dust collection trough, a vacuum cleaner, and a second connecting pipe. The top surface of the base has multiple openings evenly spaced in a linear fashion. Support legs are fixedly connected to the four corners of the bottom surface of the base, and supports are fixedly connected to the outer walls of the two support legs on one side. The bottom surface of the base is provided with a conical hood, and a dust collection trough is provided below the conical hood. The two sides of the conical hood are fixedly connected to the connectors. The vacuum cleaner is fixedly connected to the bottom end of the base by bolts. The vacuum cleaner is connected to the conical hood through the second connecting pipe, and the output end of the vacuum cleaner is fixedly connected to the first connecting pipe.

[0006] Preferably, the limiting mechanism includes a drive motor, a coupling shaft, a limiting chassis, an electric push rod, a movable slot, a movable rod, a limiting connector, and a limiting connector. The drive motor is fixedly connected to the support by bolts and is electrically connected to the controller. The output end of the drive motor is keyed to the coupling shaft. A bevel gear is fixedly connected to the outer wall of the coupling shaft, and a lead screw is fixedly connected to the top of the coupling shaft. The limiting chassis is located at the four corners of the top surface of the base. A connecting seat is fixedly connected to one end of the limiting chassis. The limiting chassis and the connecting seat are penetrated by the coupling shaft and are rotatably connected to each other through bearings. Guide rods are fixedly connected to the top surfaces of the front and rear ends of the connecting seat, and a connecting seat is fixedly connected to the top of the guide rod.

[0007] Preferably, the connecting seat two is rotatably connected to the top end of the lead screw via a bearing, the outer wall of the lead screw is threaded with a slider, the slider is slidably connected to the guide rod, the side of the slider is fixedly connected to a movable groove one, the movable groove one is movably connected to the end of the electric push rod, the output end of the electric push rod is movably connected to the movable groove two, the movable groove two is fixedly connected to the bottom side of the movable rod one via a rotating rod, the upper end of the movable rod one is movably connected to one end of the limiting connector one, the other end of the limiting connector one is movably connected to a support block, and the electric push rod is electrically connected to the controller.

[0008] Preferably, the inner side of the support block is fixedly connected to the slider by bolts, the middle part of the limiting connector one is movably connected to the top end of the limiting connector two, the bottom end of the limiting connector two is movably connected to a pressure rod, the inner side of the pressure rod is provided with a sliding groove, and the sliding groove is slidably connected to the slide rail on the surface of the slider, the bottom end of the pressure rod is provided with a limiting block, the outer wall of the bevel gear one is meshed with the bevel gear two, the shaft of the bevel gear two is fixedly connected to the axis, the end of the connecting shaft away from the bevel gear two is fixedly connected to the bevel gear three, the outer wall of the bevel gear three is meshed with the bevel gear four, the shaft of the bevel gear four is fixedly connected to the axis of the bevel gear two, and the connecting shaft two is fixedly connected to another lead screw.

[0009] Preferably, the welding mechanism includes a bracket, a front-to-back moving mechanism, a left-to-right moving mechanism, a rotating motor, a gear, a mounting bracket, a guide wheel, and a gear. The bracket is fixedly connected to the base by bolts, and one side of the bracket is connected to the controller via a bracket. The front-to-back moving mechanism is located at the top of the bracket.

[0010] Preferably, the forward and backward moving mechanism includes a rack, a rotating motor, and a connecting plate. The rack is located on the side of the top of the support, the rotating motor is located at the top of the support, and the connecting plate is located between the rotating motor and the top surface of the support. The connecting plate is fixedly connected to the rotating motor by bolts. The output end of the rotating motor is keyed to a gear, which meshes with the rack. Guide wheels are provided on the front and rear sides of the connecting plate, and the guide wheels are tumblingly connected to the side of the support. The connecting plate is fixedly connected to the inner side of the connecting plate, and a guide wheel is rotatably connected to the inner wall of the connecting plate, rollingly connected to the top surface of the support. A moving frame is fixedly connected to the inner side of the connecting plate by bolts, and the rotating motor is electrically connected to the controller.

[0011] Preferably, the top surface of the movable frame is provided with a welding frame, and a rack is fixedly connected to the inner side of the welding frame. The mounting frame is located on the top surface of the welding frame. The top surface of the mounting frame is connected to a rotating motor by bolts. The output shaft of the mounting frame is keyed to a gear. The gear meshes with the rack. The rotating motor is electrically connected to the controller. The bottom end of the mounting frame is rotatably connected to a guide wheel, and the guide wheel is rollingly connected to the inner side of the welding frame.

[0012] Preferably, the left and right moving mechanism includes a third rotating motor, a second moving frame, a lead screw, a moving block, and a welding torch. The second moving frame is fixedly connected to one side of the first mounting frame. The inner walls of the upper and lower ends of the second moving frame are fixedly connected to the two ends of the sliding rod. The top end of the second moving frame is fixedly connected to the third rotating motor by bolts. The third rotating motor is electrically connected to the controller. The output shaft of the third rotating motor is keyed to the lead screw. The outer wall of the lead screw is threaded to the moving block, and the two ends of the moving block are slidably connected to the sliding rod. A fixing block is fixedly connected to the outer wall of the moving block, and the fixing block engages with the outer wall of the welding torch.

[0013] Preferably, the spraying mechanism includes a trapezoidal frame, a pressure pump, a second pipe, and a nozzle. The trapezoidal frame is fixedly connected to the top surface of the first mounting frame by bolts. A water tank is provided above the trapezoidal frame. The water tank is connected to one end of the first pipe. The end of the first pipe away from the water tank is connected to the input end of the pressure pump. The pressure pump is connected to one end of the trapezoidal frame by bolts. The output end of the pressure pump is connected to the upper end of the second pipe. The bottom end of the second pipe is connected to the nozzle.

[0014] At least one embodiment of the present invention provides a welding process for a sunroof bracket, comprising the following steps: Equipment debugging: Start each mechanism through the controller, check whether the dust removal mechanism's vacuum cleaner is working properly, whether the limit mechanism's drive motor and electric push rod move smoothly, whether each moving mechanism of the welding mechanism moves accurately, and whether the spray mechanism's pressure pump and nozzle water output is uniform. After debugging, reset each mechanism to its initial position. Workpiece loading: Place the sunroof bracket to be welded on the top surface of the base of the dust removal mechanism, so that the four corners of the sunroof bracket correspond to the limit blocks of the limiting mechanism. Start the drive motor one through the controller. Drive motor one drives the connecting shaft one to rotate. Through the bevel gear set, the lead screws on both sides rotate synchronously, driving the slider to move up and down along the guide rod. Adjust the height of the limit block to match the sunroof bracket. Then start the electric push rod. The electric push rod pushes the movable rod one to rotate. Through the limit connector one and limit connector two, the pressure rod moves down along the slider, so that the rubber limit block presses the four corners of the sunroof bracket, completing the limiting and fixing of the workpiece. Welding preparation: According to the welding trajectory of the sunroof bracket, the welding parameters are preset in the controller, including the forward and backward and left and right movement speeds of the welding mechanism, the welding current and voltage of the welding torch, and the dust removal mechanism is started at the same time. The dust collector generates negative pressure through the connecting pipe and the cone cover through the opening of the base to prepare to collect welding fumes. Automatic welding: The welding mechanism is started by the controller. The rotating motor 2 drives the gear 2 to mesh with the rack 2 to realize the forward and backward movement of the welding torch. The rotating motor 1 drives the gear 1 to mesh with the rack 1 to realize the lateral movement of the welding torch. The rotating motor 3 drives the lead screw to rotate to realize the precise left and right movement of the welding torch. The three linkages make the welding torch weld the sunroof bracket along the preset trajectory. The fumes generated during the welding process are sucked into the conical hood through the opening and transported to the dust collection tank by the vacuum cleaner through the connecting pipe 1. Post-welding cooling: After the welding torch completes the welding along the preset trajectory, the controller controls the welding mechanism to move the welding torch to one side, and at the same time starts the pressure pump of the spray mechanism. The pressure pump delivers the cooling water in the water tank to the nozzle through pipe one and pipe two. The nozzle atomizes the cooling water and sprays it onto the welded joint of the sunroof bracket to achieve rapid cooling of the welded joint. The cooling time is set to the preset time of 30-120 seconds in the controller according to the material and thickness of the sunroof bracket. Workpiece unloading: After cooling is completed, the controller controls the electric push rod of the limit mechanism to reset, which drives the pressure rod to move up. The limit block releases the sunroof bracket. Then, the controller controls the drive motor to reset, adjusts the slider to the initial height, and the operator removes the welded sunroof bracket from the top surface of the base to complete one welding operation. Equipment cleaning: Regularly clean the welding fumes from the dust collection tank, replenish the cooling water in the water tank, check the wear and tear of the welding torch and replace it in time to ensure the equipment can be used normally next time.

[0015] The welding device for a sunroof bracket provided in this invention has the following advantages compared with the prior art: The dust removal mechanism of this invention achieves real-time and efficient collection of welding fumes through the combination of base openings, conical hood converging, and vacuum cleaner exhaust. It has a high dust collection rate, effectively purifies the working environment, and protects the health of operators. The limiting mechanism of this invention achieves height adjustment through a drive motor, clamping action through an electric push rod, and synchronous rotation of the lead screws on both sides through a bevel gear set transmission, ensuring the synchronicity of the four corner limits. It can adaptively clamp sunroof brackets of different sizes and thicknesses without the need to replace parts, has strong versatility, and clamps firmly without welding offset. The welding mechanism of this invention adopts a gantry structure. It uses three rotating motors in conjunction with gears, racks, and lead screws to achieve precise multi-directional movement of the welding torch in the front-back, lateral, and left-right directions. It has good linkage, high welding accuracy, can be adapted to sunroof brackets with complex welding trajectories, has a high degree of automation, and reduces the degree of manual intervention. The spraying mechanism of this invention uses atomizing nozzles to rapidly cool the welded joint, ensuring uniform cooling, avoiding stress deformation, shortening the cooling time, and improving processing efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art 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.

[0017] Figure 1 A schematic diagram of the structure of a welding device for a sunroof bracket provided in an embodiment of the present invention; Figure 2 This is an embodiment of the present invention. Figure 1 Schematic diagram of the dust removal mechanism; Figure 3 This is an embodiment of the present invention. Figure 1 Schematic diagram of the middle limit mechanism; Figure 4 This is an embodiment of the present invention. Figure 1 A schematic diagram of the structure on the back of the welding mechanism; Figure 5 This is an embodiment of the present invention. Figure 1 A schematic diagram of the front structure of the welding mechanism; Figure 6 This is an embodiment of the present invention. Figure 5 An enlarged structural diagram at position 34 in the middle; Figure 7This is an embodiment of the present invention. Figure 5 An enlarged structural diagram at position 35; Figure 8 This is an embodiment of the present invention. Figure 1 Schematic diagram of the central spray mechanism; In the diagram: 1. Dust removal mechanism; 11. Base; 12. Opening; 13. Support leg; 14. Support; 15. Connector; 16. Conical hood; 17. Dust collection trough; 18. Connecting pipe one; 19. Vacuum cleaner; 110. Connecting pipe two; 2. Limiting mechanism; 21. Connecting shaft; 22. Drive motor one; 23. Coupling one; 24. Bevel gear one; 25. Bevel gear two; 26. Bevel gear three; 27. Bevel gear four; 28. Coupling two; 29. ​​Limiting chassis; 210. Connecting seat one; 211. Guide rod; 212. Lead screw; 213. Connecting seat two; 214. Movable slot one; 215. Electric push rod; 216. Movable slot two; 217. Movable rod one; 218. Limiting connector one; 219. Support block; 2110. Limiting connector two; 2111. Pressure rod; 2112. Limiting block; 2113, slider; 3, welding mechanism; 31, bracket; 32, welding frame; 33, rack one; 34, forward and backward moving mechanism; 341, rack two; 342, rotating motor two; 343, connecting plate one; 344, gear two; 345, guide wheel two; 346, connecting plate two; 347, guide wheel three; 348, moving frame one; 35, left and right moving mechanism; 351, rotating motor three; 352, moving frame two; 353, sliding rod; 354, lead screw; 355, moving block; 356, fixing block; 357, welding torch; 36, rotating motor one; 37, gear one; 38, mounting frame one; 39, guide wheel one; 4, spraying mechanism; 41, trapezoidal frame; 42, water tank; 43, pipe one; 44, pressure pump; 45, pipe two; 46, nozzle; 5, controller. Detailed Implementation

[0018] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure. For ease of understanding, the English abbreviations and related technical terms involved in the embodiments of this disclosure will be explained and described below.

[0019] It should be understood that the described embodiments are merely some, not all, of the embodiments disclosed herein. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure.

[0020] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The singular forms “a,” “the,” and “the” as used in the embodiments of this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0021] It should be understood that the term "and / or" used in this article is merely a way of describing the logical relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0022] Depending on the context, the word "if" as used here can be interpreted as "when" or "when" or "in response to determination" or "in response to detection." Similarly, depending on the context, the phrase "if determination" or "if detection (of the stated condition or event)" can be interpreted as "when determination" or "in response to determination" or "when detection (of the stated condition or event)" or "in response to detection (of the stated condition or event)."

[0023] It should be understood that the terms "first," "second," etc., used in this disclosure are for distinguishing purposes only and should not be construed as indicating or implying relative importance or order.

[0024] In the description of this disclosure, the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and are not intended to 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 should not be construed as a limitation of this disclosure.

[0025] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "joining" should be interpreted broadly, for example, they can be fixed connections, detachable connections, mating connections or integral connections; those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0026] Example 1 like Figures 1 to 8The diagram illustrates a welding device for a sunroof bracket according to an embodiment of the present invention, comprising: a dust removal mechanism 1, a limiting mechanism 2, a welding mechanism 3, a spray mechanism 4, and a controller 5. The limiting mechanism 2 is located at the four corners of the top surface of the dust removal mechanism 1, the welding mechanism 3 is located on the top surface of the dust removal mechanism 1, the spray mechanism 4 is located on the side of the welding mechanism 3, and the controller 5 is located on the side of the welding mechanism 3. The dust removal mechanism 1 is used to remove welding fumes to avoid affecting the user's health; the limiting mechanism 2 is used to fix and limit the sunroof to be welded; the welding mechanism 3 is used to weld the sunroof; the spray mechanism 4 is used to cool the welding torch 357; and the controller 5 is used to control the overall operation of the equipment.

[0027] like Figures 1-2 As shown, a welding device for a sunroof bracket according to an embodiment of the present invention is illustrated. The dust removal mechanism 1 includes a base 11, a connector 15, a conical cover 16, a dust collection trough 17, a vacuum cleaner 19, and a connecting pipe 110. The top surface of the base 11 has a plurality of linearly and evenly distributed openings 12. Support legs 13 are fixedly connected to the four corners of the bottom surface of the base 11. Supports 14 are fixedly connected to the outer walls of the two support legs 13 on one side. The bottom surface of the base 11 is provided with a conical cover 16, and a dust collection trough 17 is provided below the conical cover 16. The two sides of the vacuum cleaner 16 are fixedly connected to the connector 15. The vacuum cleaner 19 is fixedly connected to the bottom end of the base 11 by bolts. The vacuum cleaner 19 is connected to the conical cover 16 through the second connecting pipe 110. The output end of the vacuum cleaner 19 is fixedly connected to the first connecting pipe 18, which is connected to the dust collection tank 17 and the two are in communication. The vacuum cleaner 19 is electrically connected to the controller 5. The base 11 is a rectangular metal plate with multiple openings 12 evenly and linearly opened on its top surface. Welding fumes are sucked in through the openings 12. The bottom surface of the base 11 Four corner supports 13 are welded and fixed, made of stainless steel to ensure stability. Supports 14 are welded and fixed to the outer walls of the two supports 13 on one side for mounting the drive motor 22 of the limit mechanism 2. A conical cover 16 is fixed to the bottom surface of the base 11 via a connector 15, which is a metal bracket. The top of the conical cover 16 fits against the bottom surface of the base 11, and the conical cover 16 is connected to the opening 12 to collect dust. A dust collection trough 17 is provided below the conical cover 16. The detachable structure facilitates the cleaning of fumes and dust. The vacuum cleaner 19 is fixedly connected to the bottom of the base 11 by bolts. The input end of the vacuum cleaner 19 is connected to the bottom of the conical cover 16 through the second connecting pipe 110. The output end of the vacuum cleaner 19 is fixedly connected to the first connecting pipe 18. The end of the first connecting pipe 18 away from the vacuum cleaner 19 is connected to the dust collection tank 17 and the two are in communication. When the vacuum cleaner 19 is working, it generates negative pressure, which collects the welding fumes and dust into the dust collection tank 17 through the opening 12, the conical cover 16, the second connecting pipe 110, and the first connecting pipe 18.

[0028] like Figure 3As shown, a welding device for a sunroof bracket according to an embodiment of the present invention is illustrated. The limiting mechanism 2 includes a drive motor 22, a connecting shaft 23, a limiting base 29, an electric push rod 215, a movable groove 216, a movable rod 217, a limiting connector 218, and a limiting connector 2110. The drive motor 22 is fixedly connected to the support 14 by bolts and is electrically connected to the controller 5. The output end of the drive motor 22 is keyed to the connecting shaft 23. A bevel gear 24 is fixedly connected to the outer wall of the connecting shaft 23, and a lead screw 212 is fixedly connected to the top of the connecting shaft 23. The limiting base 29 is located at the four corners of the top surface of the base 11, and a connecting rod is fixedly connected to one end of the limiting base 29. Connecting seat 210, limiting base 29, and connecting seat 210 are penetrated by connecting shaft 23 and rotatably connected to each other via bearings. Guide rods 211 are fixedly connected to the top surfaces of the front and rear ends of connecting seat 210. Connecting seat 213 is fixedly connected to the top of guide rod 211. Connecting seat 213 is rotatably connected to the top of lead screw 212 via bearings. Slider 2113 is threadedly connected to the outer wall of lead screw 212. Slider 2113 is slidably connected to guide rod 211. Movable groove 214 is fixedly connected to the side of slider 2113. Movable groove 214 is movably connected to the end of electric actuator 215. The output end of electric actuator 215 is movably connected to movable groove 216. Movable groove 216 is connected to movable rod 216 via a rotating rod. The bottom side of 17 is fixedly connected. The upper end of the movable rod 217 is movably connected to one end of the limiting connector 218. The other end of the limiting connector 218 is movably connected to the support block 219. The electric push rod 215 is electrically connected to the controller 5. The inner side of the support block 219 is fixedly connected to the slider 2113 by bolts. The middle part of the limiting connector 218 is movably connected to the top of the limiting connector 2110. The bottom end of the limiting connector 2110 is movably connected to the pressure rod 2111. The inner side of the pressure rod 2111 has a sliding groove, and the sliding groove is slidably connected to the slide rail on the surface of the slider 2113. The bottom end of the pressure rod 2111 has a limiting block 2112. The outer wall of the bevel gear 24 is meshed with the bevel gear 25. A connecting shaft 21 is fixedly connected to the shaft center of bevel gear 25. A bevel gear 26 is fixedly connected to the end of the connecting shaft 21 away from bevel gear 25. A bevel gear 27 is meshed with the outer wall of bevel gear 26. A connecting shaft 28 is fixedly connected to the shaft center of bevel gear 27. The connecting shaft 28 is fixedly connected to another lead screw 212. The drive motor 22 is a servo motor, which is fixedly connected to the support 14 by bolts. The drive motor 22 is also electrically connected to the controller 5, and the controller 5 controls the speed and direction. The output end of the drive motor 22 is keyed to the connecting shaft 23. A bevel gear 24 is welded and fixed to the outer wall of the connecting shaft 23. A lead screw 212 is welded and fixed to the top of the connecting shaft 23.The limiting base 29 is located at the four corners of the top surface of the base 11. A connecting seat 210 is welded to the end of the limiting base 29 facing the center of the base 11. A connecting shaft 23 passes through the limiting base 29 and the connecting seat 210. The connecting shaft 23 is rotatably connected to the limiting base 29 and the connecting seat 210 through bearings to ensure the smooth rotation of the connecting shaft 23. Guide rods 211 are welded to the top surfaces of the front and rear ends of the connecting seat 210. A connecting seat 213 is welded to the top of the guide rod 211. The connecting seat 213 is rotatably connected to the top of the lead screw 212 through bearings to ensure the stability of the lead screw 212 rotation. A slider 2113 is threadedly connected to the outer wall of the lead screw 212. The slider 2113 is slidably connected to the guide rod 211. The guide rod 211 guides and limits the slider 2113, preventing it from rotating synchronously with the lead screw 212. A movable groove 214 is welded and fixed to the outer wall of the slider 2113. The movable groove 214 is movably connected to the end of the electric push rod 215. The output end of the electric push rod 215 is movably connected to the movable groove 216. The movable groove 216 is welded and fixed to the bottom side of the movable rod 217 via a rotating rod. The electric push rod 215 is an electro-hydraulic push rod, which is electrically connected to the controller 5 and its extension and retraction are controlled by the controller 5. The upper end of the movable rod 217 is movably connected to one end of the limiting connector 218. The other end of the limiting connector 218 is movably connected to a support block 219. The support block 219 is an L-shaped metal structure, and its inner side is fixedly connected to the slider 2113 by bolts, providing support for the limiting connector 218. The middle part of the limiting connector 218 is movably connected to the top of the limiting connector 2110. The bottom end of the limiting connector 2110 is movably connected to a pressure rod 2111. The inner side of the pressure rod 2111 has a sliding groove, which is slidably connected to the slide rail on the surface of the slider 2113 to ensure the smooth up-and-down sliding of the pressure rod 2111. A rubber limiting block 2112 is bonded and fixed to the bottom end of the pressure rod 2111. The rubber material can increase the friction with the workpiece, improve the clamping firmness, and at the same time avoid scratching the surface of the workpiece. The outer wall of the bevel gear 24 is meshed with a bevel gear. A connecting shaft 21 is welded and fixed to the center of bevel gear 25. Connecting shaft 21 is rotatably connected to support 14 via bearings. A bevel gear 3 26 is welded and fixed to the end of connecting shaft 21 away from bevel gear 25. A bevel gear 4 27 meshes with the outer wall of bevel gear 3 26. A connecting shaft 28 is welded and fixed to the center of bevel gear 4 27. Connecting shaft 28 is welded and fixed to another lead screw 212. Through the transmission of the bevel gear set, drive motor 1 22 drives the lead screws 212 on both sides to rotate synchronously, ensuring the synchronous operation of the four corner limiting mechanisms 2.

[0029] like Figures 4-7As shown, a welding device for a sunroof bracket according to an embodiment of the present invention is illustrated. The welding mechanism 3 includes a bracket 31, a front-to-back moving mechanism 34, a left-to-right moving mechanism 35, a first rotating motor 36, a first gear 37, a first mounting bracket 38, a first guide wheel 39, and a second gear 344. The bracket 31 is fixedly connected to the base 11 by bolts. One side of the bracket 31 is connected to the controller 5 via a bracket. The front-to-back moving mechanism 34 is located at the top of the bracket 31 and includes a second rack 341, a second rotating motor 342, and a first connecting plate 343. The second rack 341 is located on the side of the top of the bracket 31, the second rotating motor 342 is located at the top of the bracket 31, and the first connecting plate 343 is located between the second rotating motor 342 and the bracket 31. Between the top surfaces, connecting plate 1 343 is fixedly connected to rotating motor 2 342 by bolts. The output end of rotating motor 2 342 is keyed to gear 2 344. Gear 2 344 meshes with rack 2 341. Guide wheels 2 345 are provided on the front and rear sides of connecting plate 1 343. Guide wheels 2 345 are rolledly connected to the side of bracket 31. Connecting plate 2 346 is fixedly connected to the inner side of connecting plate 1 343. Guide wheel 3 347 is rotatably connected to the inner wall of connecting plate 2 346. Guide wheel 3 347 is rolledly connected to the top surface of bracket 31. Moving frame 1 348 is fixedly connected to the inner side of connecting plate 2 346 by bolts. Rotating motor 2 342 is electrically connected to controller 5. Welding frame 3 is provided on the top surface of moving frame 1 348. 2. A rack 33 is fixedly connected to the inner side of the welding frame 32. A mounting frame 38 is located on the top surface of the welding frame 32. The top surface of the mounting frame 38 is connected to the rotating motor 36 by bolts. The output shaft of the mounting frame 38 is keyed to the gear 37. The gear 37 meshes with the rack 33. The rotating motor 36 is electrically connected to the controller 5. The bottom end of the mounting frame 38 is rotatably connected to the guide wheel 39, and the guide wheel 39 is rollingly connected to the inner side of the welding frame 32. The left and right moving mechanism 35 includes a rotating motor 351, a moving frame 352, a lead screw 354, a moving block 355, and a welding torch 357. The moving frame 352 is fixedly connected to one side of the mounting frame 38. The inner walls of the upper and lower ends of the moving frame 352 are connected to the... Both ends of the sliding rod 353 are fixedly connected. The top of the second movable frame 352 is fixedly connected to the third rotating motor 351 by bolts. The third rotating motor 351 is electrically connected to the controller 5. The output shaft of the third rotating motor 351 is keyed to the lead screw 354. The outer wall of the lead screw 354 is threadedly connected to the moving block 355. Both ends of the moving block 355 are slidably connected to the sliding rod 353. The outer wall of the moving block 355 is fixedly connected to the fixing block 356, which is engaged with the outer wall of the welding torch 357. The bracket 31 is a gantry-type metal structure, which is fixedly connected to the top surface of the base 11 by bolts to ensure the stability of the welding mechanism 3. One side of the bracket 31 is connected to the controller 5 through a fixing bracket for easy operation by the operator.A forward and backward moving mechanism 34 is mounted on the crossbeam at the top of the support 31, and a left and right moving mechanism 35 is mounted at the moving end of the forward and backward moving mechanism 34, enabling multi-directional movement of the welding torch 357. The forward and backward moving mechanism 34 includes a rack 341, a rotary motor 342, and a connecting plate 343. The rack 341 is welded and fixed to the side of the top of the support 31 along the length of the crossbeam. The rotary motor 342 is a servo motor, mounted at the top of the support 31. The connecting plate 343 is positioned between the rotary motor 342 and the top surface of the support 31, and is bolted to the housing of the rotary motor 342. The output end of the rotary motor 342 is keyed to a gear 344, which meshes with the rack 341. The rotary motor 342 is electrically connected to the controller 5, and the gear 344 engages with the rack 341. The meshing of rack 2 341 enables the overall forward and backward movement of the forward and backward moving mechanism 34; guide wheels 2 345 are rotatably connected to the front and rear sides of connecting plate 1 343, and guide wheels 2 345 are rollingly connected to the side of bracket 31; connecting plate 2 346 is welded and fixed to the inner side of connecting plate 1 343, and guide wheel 3 347 is rotatably connected to the inner wall of connecting plate 2 346, and guide wheel 3 347 is rollingly connected to the top surface of bracket 31; guide wheels 2 345 and guide wheels 3 347 play a guiding and supporting role, ensuring the smooth movement of the forward and backward moving mechanism 34; a moving frame 1 348 is fixedly connected to the inner side of connecting plate 2 346 by bolts, which is used to install welding frame 32. A welding frame 32 is welded and fixed to the top surface of the movable frame 348. The welding frame 32 is a U-shaped metal structure, and a rack 33 is welded and fixed to its inner side along the length direction. The mounting frame 38 is set on the top surface of the welding frame 32. The top surface of the mounting frame 38 is connected to the housing of the rotating motor 36 by bolts. The rotating motor 36 is a servo motor and is electrically connected to the controller 5. The output shaft of the rotating motor 36 passes through the mounting frame 38 and is keyed to the gear 37. The gear 37 meshes with the rack 33. Through the meshing of the gear 37 and the rack 33, the lateral movement of the mounting frame 38 is realized. A guide wheel 39 is rotatably connected to the bottom end of the mounting frame 38, and the guide wheel 39 is rolled to the inner side of the welding frame 32 to ensure the stability of the movement of the mounting frame 38. The left and right moving mechanism 35 includes a rotary motor 351, a moving frame 352, a lead screw 354, a moving block 355, and a welding torch 357. The moving frame 352 is welded and fixed to one side of the mounting frame 38. The inner walls of the upper and lower ends of the moving frame 352 are welded and fixed to the two ends of the sliding rod 353. The sliding rod 353 consists of two stainless steel round rods that are parallel to each other. The top end of the moving frame 352 is fixedly connected to the housing of the rotary motor 351 by bolts. The rotary motor 351 is a servo motor and is electrically connected to the controller 5.The output shaft of the rotating motor 351 passes through the movable frame 352 and is keyed to the lead screw 354. The outer wall of the lead screw 354 is threadedly connected to the movable block 355, and both ends of the movable block 355 are slidably connected to two sliding rods 353 respectively. The sliding rods 353 guide and limit the movable block 355. A fixing block 356 is welded and fixed to the outer wall of the movable block 355. The fixing block 356 is engaged with the outer wall of the welding torch 357 and fixed by locking bolts, which facilitates the installation, disassembly and replacement of the welding torch 357. The welding torch 357 is an arc welding torch, and its welding parameters are adjusted by the controller 5.

[0030] like Figure 8 As shown, a welding device for a sunroof bracket according to an embodiment of the present invention is illustrated. The spraying mechanism 4 includes a trapezoidal frame 41, a pressure pump 44, a second pipe 45, and a nozzle 46. The trapezoidal frame 41 is fixedly connected to the top surface of the mounting bracket 38 by bolts. A water tank 42 is provided above the trapezoidal frame 41. The water tank 42 is connected to one end of the first pipe 43. The end of the first pipe 43 away from the water tank 42 is connected to the input end of the pressure pump 44. The pressure pump 44 is connected to one end of the trapezoidal frame 41 by bolts. The output end of the pressure pump 44 is connected to the upper end of the second pipe 45. The bottom end of the second pipe 45 is connected to the nozzle 46. The trapezoidal frame 41 is fixedly connected to the top surface of the mounting bracket 38 by bolts to ensure that the spraying mechanism 4 moves synchronously with the welding mechanism 3. A water tank 42 is installed above the nozzle. The water tank 42 is a detachable plastic water storage structure, which facilitates the replenishment of cooling water. The outlet of the water tank 42 is connected to one end of the first pipe 43 via a flange. The end of the first pipe 43 away from the water tank 42 is connected to the input end of the pressure pump 44 via a flange. The pressure pump 44 is a miniature high-pressure water pump, which is fixedly connected to one end of the trapezoidal frame 41 by bolts. The pressure pump 44 is also electrically connected to the controller 5, which controls its start and stop. The output end of the pressure pump 44 is connected to the upper end of the second pipe 45 via a flange. The second pipe 45 is a flexible metal pipe, which facilitates the adjustment of the orientation of the nozzle 46. Its bottom end is connected to the nozzle 46 via a thread. The nozzle 46 is an atomizing nozzle, which is oriented towards the welding end of the welding gun 357 to achieve atomized spraying of cooling water and ensure uniform cooling.

[0031] Example 2 like Figures 1 to 8 As shown, it illustrates a welding process for a sunroof bracket according to an embodiment of the present invention, as follows: S1. Equipment Debugging: Start the dust removal mechanism 1, limit mechanism 2, welding mechanism 3, and spraying mechanism 4 via controller 5. Check if the vacuum cleaner 19 is working properly and if the dust collection tank 17 is sealed. Check if the drive motor 1 22 and electric push rod 215 move smoothly and if the limit block 2112 can lift and clamp normally. Check if the rotation motor 1 36, rotation motor 2 342, and rotation motor 3 351 drive the welding gun 357 accurately and without jamming. Check if the water output of the pressure pump 44 is normal and if the atomization effect of the nozzle 46 is good and without leakage. After debugging, reset each mechanism to its initial position via controller 5 and prepare for material loading.

[0032] S2. Workpiece Loading: The operator places the sunroof bracket to be welded on the top surface of the base 11 of the dust removal mechanism 1, ensuring that the four corners of the sunroof bracket correspond one-to-one with the limiting blocks 2112 of the limiting mechanism 2. The controller 5 starts the drive motor 22, which drives the connecting shaft 23 to rotate. The connecting shaft 23 drives the bevel gear 24 to rotate. Through the transmission of the bevel gear 25, connecting shaft 21, bevel gear 26, bevel gear 27, and connecting shaft 28, the lead screws 212 on both sides rotate synchronously. The lead screws 212 drive the slider 2113 to move up and down along the guide rod 211, adjusting the height of the limiting block 2112 to match the thickness of the sunroof bracket. Then, the controller 5 starts the electric push rod 215. The output end of the electric push rod 215 extends and pushes the movable groove 216 to move, which drives the movable rod 217 to rotate around the connection point with the support block 219. The movable rod 217 pushes the limit connector 218 to rotate. The limit connector 218 drives the limit connector 2110 to drive, which in turn drives the pressure rod 2111 to slide down along the slide rail of the slider 2113, so that the rubber limit block 2112 tightly presses the four corners of the sunroof bracket, completing the limit fixation of the workpiece and ensuring that the workpiece does not shift during the welding process.

[0033] S3. Welding Preparation: Based on the material, thickness, and welding trajectory of the sunroof bracket to be welded, the operator presets welding parameters in the controller 5, including the rotation speeds of the first rotating motor 36, the second rotating motor 342, and the third rotating motor 351 of the welding mechanism 3, to adjust the forward, backward, lateral, and left-right movement speed of the welding torch 357; and presets the welding current, voltage, and welding speed of the welding torch 357. Simultaneously, the dust collector 19 of the dust removal mechanism 1 is activated via the controller 5. The dust collector 19 generates negative pressure through the connecting pipe 110 and the conical cover 16 via the opening 12 of the base 11, preparing to collect the fumes generated during the welding process in real time.

[0034] S4. Automatic Welding: The welding torch 357 and various rotating motors of the welding mechanism 3 are activated by the controller 5. Rotating motor 2 342 drives gear 2 344 to mesh with rack 2 341, realizing the forward and backward movement of the welding torch 357; rotating motor 1 36 drives gear 1 37 to mesh with rack 1 33, realizing the lateral movement of the welding torch 357; rotating motor 351 drives lead screw 354 to rotate, and lead screw 354 drives moving block 355 to move left and right along sliding rod 353, realizing the precise left and right movement of the welding torch 357. The three motors are linked according to the preset trajectory in the controller 5, so that the welding torch 357 performs automated and precise welding along the welding trajectory of the sunroof bracket. The fumes generated during the welding process are sucked into the conical hood 16 through the opening 12 of the base 11. Under the negative pressure of the vacuum cleaner 19, the fumes are transported to the dust collection tank 17 through connecting pipe 2 110, vacuum cleaner 19, and connecting pipe 1 18, realizing real-time and efficient collection of fumes and preventing fumes from escaping.

[0035] S5. Post-weld cooling: After the welding torch 357 completes the welding along the preset trajectory, the controller 5 automatically controls the rotation of each motor of the welding mechanism 3, moving the welding torch 357 to one side to prevent the cooling water from contacting the welding torch 357 during spraying. Simultaneously, the controller 5 automatically starts the pressure pump 44 of the spraying mechanism 4. The pressure pump 44 draws cooling water from the water tank 42 through pipe 1 43, pressurizes it, and then delivers it to the nozzle 46 through pipe 2 45. The nozzle 46 atomizes the cooling water and sprays it evenly onto the welded joint of the sunroof bracket, achieving rapid cooling of the welded joint. The cooling time is set according to the material and thickness of the sunroof bracket. The cooling time for a standard carbon steel sunroof bracket is 30-60 seconds, and for an aluminum alloy sunroof bracket, it is 60-120 seconds. The specific time can be adjusted via the controller 5.

[0036] S6. Workpiece Unloading: After the welded joint has cooled, the controller 5 automatically controls the electric push rod 215 of the limit mechanism 2 to reset. The output end of the electric push rod 215 retracts, driving the movable rod 217, the limit connector 218, and the limit connector 2110 to move the pressure rod 2111 upward along the slide rail of the slider 2113, and the limit block 2112 releases the sunroof bracket. Subsequently, the controller 5 controls the drive motor 22 to reverse, driving the lead screw 212 to rotate, so that the slider 2113 resets to the initial height. The operator then removes the welded sunroof bracket from the top surface of the base 11, completing one welding operation.

[0037] S7. Equipment Cleaning: After welding operations are completed, the operator turns off the power to each mechanism, periodically removes the dust collection tank 17 from the dust removal mechanism 1, cleans the welding fumes collected inside, and puts it back in its original position after cleaning; checks the remaining cooling water in the water tank 42 and replenishes the cooling water in time to ensure the cooling effect next time; checks the wear of the welding torch 357 head. If the torch head is worn or deformed, replace the welding torch 357 in time to ensure welding quality; at the same time, cleans the welding residue on the top surface of the base 11, checks whether the bolts of each connection are loose, and tightens them in time to ensure the normal use of the equipment next time.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A welding device for a sunroof bracket, characterized in that, include: The dust removal mechanism (1), the limiting mechanism (2), the welding mechanism (3), the spraying mechanism (4), and the controller (5) are provided. The limiting mechanism (2) is located at the four corners of the top surface of the dust removal mechanism (1), the welding mechanism (3) is located on the top surface of the dust removal mechanism (1), the spraying mechanism (4) is located on the side of the welding mechanism (3), and the controller (5) is located on the side of the welding mechanism (3). The dust removal mechanism (1) includes a base (11), a connector (15), a conical hood (16), a dust collection tank (17), a vacuum cleaner (19), and a connecting pipe (110). The top surface of the base (11) has multiple evenly spaced openings (12). Support legs (13) are fixedly connected to the four corners of the bottom surface of the base (11). Supports (14) are fixedly connected to the outer walls of the two support legs (13) on one side. The bottom surface of the base (11) is provided with a conical hood (16). The bottom is provided with a dust collection tank (17), the two sides of the conical cover (16) are fixedly connected to the connector (15), the vacuum cleaner (19) is fixedly connected to the bottom end of the base (11) by bolts, the vacuum cleaner (19) is connected to the conical cover (16) through the second connecting pipe (110), the output end of the vacuum cleaner (19) is fixedly connected to the first connecting pipe (18), the first connecting pipe (18) is connected to the dust collection tank (17), and the two are connected in communication, the vacuum cleaner (19) is electrically connected to the controller (5).

2. The welding device for a sunroof bracket according to claim 1, characterized in that, The limiting mechanism (2) includes a drive motor (22), a coupling (23), a limiting chassis (29), an electric push rod (215), a movable slot (216), a movable rod (217), a limiting connector (218), and a limiting connector (2110). The drive motor (22) is fixedly connected to the support (14) by bolts. The drive motor (22) is electrically connected to the controller (5). The output end of the drive motor (22) is keyed to the coupling (23). A bevel gear is fixedly connected to the outer wall of the coupling (23). (24) A lead screw (212) is fixedly connected to the top of the first connecting shaft (23). The limiting base (29) is located at the four corners of the top surface of the base (11). A connecting seat (210) is fixedly connected to one end of the limiting base (29). The limiting base (29) and the connecting seat (210) are penetrated by the first connecting shaft (23) and are rotatably connected to each other through bearings. A guide rod (211) is fixedly connected to the top surface of the front and rear ends of the connecting seat (210). A connecting seat (213) is fixedly connected to the top of the guide rod (211).

3. The welding device for a sunroof bracket according to claim 2, characterized in that, The connecting seat 2 (213) is rotatably connected to the top of the lead screw (212) via a bearing. The outer wall of the lead screw (212) is threaded with a slider (2113). The slider (2113) is slidably connected to the guide rod (211). The side of the slider (2113) is fixedly connected with a movable groove 1 (214). The movable groove 1 (214) is movably connected to the end of the electric push rod (215). The output end of the electric push rod (215) is movably connected to the movable groove 2 (216). The movable groove 2 (216) is fixedly connected to the bottom side of the movable rod 1 (217) via a rotating rod. The upper end of the movable rod 1 (217) is movably connected to one end of the limiting connector 1 (218). The other end of the limiting connector 1 (218) is movably connected to a support block (219). The electric push rod (215) is electrically connected to the controller (5).

4. The welding device for a sunroof bracket according to claim 3, characterized in that, The inner side of the support block (219) is fixedly connected to the slider (2113) by bolts. The middle part of the limiting connector one (218) is movably connected to the top of the limiting connector two (2110). The bottom end of the limiting connector two (2110) is movably connected to a pressure rod (2111). The inner side of the pressure rod (2111) is provided with a sliding groove, and the sliding groove is slidably connected to the slide rail on the surface of the slider (2113). The bottom end of the pressure rod (2111) is provided with a limiting block (2112). The bevel gear one (24) has a bevel gear two (25) meshing with its outer wall. A connecting shaft (21) is fixedly connected to the center of the bevel gear two (25). A bevel gear three (26) is fixedly connected to the end of the connecting shaft (21) away from the bevel gear two (25). A bevel gear four (27) meshes with the outer wall of the bevel gear three (26). A connecting shaft two (28) is fixedly connected to the center of the bevel gear four (27). The connecting shaft two (28) is fixedly connected to another lead screw (212).

5. The welding device for a sunroof bracket according to claim 1, characterized in that, The welding mechanism (3) includes a bracket (31), a front-to-back moving mechanism (34), a left-to-right moving mechanism (35), a rotating motor (36), a gear (37), a mounting bracket (38), a guide wheel (39), and a gear (344). The bracket (31) is fixedly connected to the base (11) by bolts. One side of the bracket (31) is connected to the controller (5) through a bracket. The front-to-back moving mechanism (34) is located at the top of the bracket (31).

6. The welding device for a sunroof bracket according to claim 5, characterized in that, The forward and backward moving mechanism (34) includes a rack two (341), a rotating motor two (342), and a connecting plate one (343). The rack two (341) is located on the side of the top of the bracket (31), the rotating motor two (342) is located at the top of the bracket (31), and the connecting plate one (343) is located between the rotating motor two (342) and the top surface of the bracket (31). The connecting plate one (343) is fixedly connected to the rotating motor two (342) by bolts. The output end of the rotating motor two (342) is keyed to the gear two (344). The gear two (344) and the rack two (341) are keyed to each other. 41) Engaging connection, the front and rear sides of the connecting plate one (343) are provided with guide wheels two (345), the guide wheels two (345) are rolled to the side of the bracket (31), the inner side of the connecting plate one (343) is fixedly connected to the connecting plate two (346), the inner wall of the connecting plate two (346) is rotatably connected to the guide wheel three (347), the guide wheel three (347) is rolled to the top surface of the bracket (31), the inner side of the connecting plate two (346) is fixedly connected to the moving frame one (348) by bolts, and the rotating motor two (342) is electrically connected to the controller (5).

7. The welding device for a sunroof bracket according to claim 6, characterized in that, The top surface of the movable frame (348) is provided with a welding frame (32). The inner side of the welding frame (32) is fixedly connected with a rack (33). The mounting frame (38) is located on the top surface of the welding frame (32). The top surface of the mounting frame (38) is connected to the rotating motor (36) by bolts. The output shaft of the mounting frame (38) is keyed to the gear (37). The gear (37) meshes with the rack (33). The rotating motor (36) is electrically connected to the controller (5). The bottom end of the mounting frame (38) is rotatably connected to the guide wheel (39), and the guide wheel (39) is rollingly connected to the inner side of the welding frame (32).

8. The welding device for a sunroof bracket according to claim 5, characterized in that, The left and right moving mechanism (35) includes a rotating motor three (351), a moving frame two (352), a lead screw (354), a moving block (355), and a welding torch (357). The moving frame two (352) is fixedly connected to one side of the mounting frame one (38). The inner walls of the upper and lower ends of the moving frame two (352) are fixedly connected to the two ends of the sliding rod (353). The top end of the moving frame two (352) is fixedly connected to the rotating motor three (351) by bolts. The rotating motor three (351) is electrically connected to the controller (5). The output shaft of the rotating motor three (351) is keyed to the lead screw (354). The outer wall of the lead screw (354) is threaded to the moving block (355), and the two ends of the moving block (355) are slidably connected to the sliding rod (353) respectively. A fixing block (356) is fixedly connected to the outer wall of the moving block (355), and the fixing block (356) is engaged with the outer wall of the welding torch (357).

9. The welding device for a sunroof bracket according to claim 1, characterized in that, The spraying mechanism (4) includes a trapezoidal frame (41), a pressure pump (44), a second pipe (45), and a nozzle (46). The trapezoidal frame (41) is fixedly connected to the top surface of the first mounting frame (38) by bolts. A water tank (42) is provided above the trapezoidal frame (41). The water tank (42) is connected to one end of the first pipe (43). The end of the first pipe (43) away from the water tank (42) is connected to the input end of the pressure pump (44). The pressure pump (44) is connected to one end of the trapezoidal frame (41) by bolts. The output end of the pressure pump (44) is connected to the upper end of the second pipe (45). The bottom end of the second pipe (45) is connected to the nozzle (46).

10. A welding process for a sunroof bracket, employing the sunroof bracket welding device according to any one of claims 1-9, characterized in that, Includes the following steps: S1. Equipment debugging: Start each mechanism through the controller (5), check whether the vacuum cleaner (19) of the dust removal mechanism (1) is working properly, whether the drive motor (22) and electric push rod (215) of the limit mechanism (2) move smoothly, whether each moving mechanism of the welding mechanism (3) moves accurately, and whether the water output of the pressure pump (44) and nozzle (46) of the spray mechanism (4) is uniform. After debugging, reset each mechanism to its initial position. S2, workpiece loading: Place the sunroof bracket to be welded on the top surface of the base (11) of the dust removal mechanism (1), so that the four corners of the sunroof bracket correspond to the limiting blocks (2112) of the limiting mechanism (2). Start the drive motor (22) through the controller (5). The drive motor (22) drives the connecting shaft (23) to rotate. Through the bevel gear group, the screws (212) on both sides rotate synchronously, driving the slider (2113) to move up and down along the guide rod (211). Adjust the height of the limiting block (2112) to match the sunroof bracket. Then start the electric push rod (215). The electric push rod (215) pushes the movable rod (217) to rotate. Through the limiting connector (218) and the limiting connector (2110), the pressure rod (2111) slides down along the slider (2113), so that the rubber limiting block (2112) presses the four corners of the sunroof bracket, completing the workpiece limiting and fixing. S3, Welding preparation: According to the welding trajectory of the sunroof bracket, the welding parameters are preset in the controller (5), including the forward and backward and left and right movement speed of the welding mechanism (3), the welding current and voltage of the welding gun (357), and the vacuum cleaner (19) of the dust removal mechanism (1) is started at the same time. The vacuum cleaner (19) generates negative pressure through the connecting pipe (110) and the cone cover (16) through the opening (12) of the base (11) to prepare to collect welding fumes. S4. Automatic welding: The welding mechanism (3) is started by the controller (5). The rotating motor (342) drives the gear (344) to mesh with the rack (341) to realize the forward and backward movement of the welding gun (357). The rotating motor (36) drives the gear (37) to mesh with the rack (33) to realize the lateral movement of the welding gun (357). The rotating motor (351) drives the lead screw (354) to rotate to realize the precise left and right movement of the welding gun (357). The three linkages enable the welding gun (357) to weld the sunroof bracket along the preset trajectory. The fumes generated during the welding process are sucked into the conical hood (16) through the opening (12) and transported to the dust collection tank (17) by the vacuum cleaner (19) through the connecting pipe (18). S5. Cooling after welding: After the welding torch (357) completes the welding of the preset trajectory, the controller (5) controls the welding mechanism (3) to move the welding torch (357) to one side, and at the same time starts the pressure pump (44) of the spray mechanism (4). The pressure pump (44) delivers the cooling water in the water tank (42) to the nozzle (46) through the first pipe (43) and the second pipe (45). The nozzle (46) atomizes the cooling water and sprays it on the welding joint of the sunroof bracket to achieve rapid cooling of the welding joint. The cooling time is set to the preset time of 30-120s in the controller (5) according to the material and thickness of the sunroof bracket. S6. Workpiece unloading: After cooling is completed, the controller (5) controls the electric push rod (215) of the limit mechanism (2) to reset, driving the pressure rod (2111) to move up, the limit block (2112) to release the sunroof bracket, and then controls the drive motor (22) to reset, adjust the slider (2113) to the initial height, and the operator removes the welded sunroof bracket from the top surface of the base (11) to complete one welding operation; S7. Equipment cleaning: Regularly clean the welding fumes in the dust collection tank (17), replenish the cooling water in the water tank (42), check the wear and tear of the welding torch (357) and replace it in time to ensure that the equipment can be used normally next time.

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