A welding machine for producing a side door anti-collision steel beam of an automobile

Abstract

This invention provides a welding machine for producing automotive side door anti-collision steel beams, belonging to the technical field of automotive welding machines. It includes a first mounting frame, with a welding machine body mounted on top of the first mounting frame. A second mounting frame is mounted on one side of the first mounting frame, and a base plate is mounted on top of the second mounting frame. A top plate is rotatably connected to the top of the base plate via a pivot. An anti-collision beam body is mounted on the top of the top plate. The anti-collision beam body consists of a crossbar, a first connecting piece, and a second connecting piece. This invention, by setting a positioning and limiting mechanism and a reinforcing limiting mechanism, not only enables rapid and precise positioning of the anti-collision beam body and completes initial limiting constraints, but also effectively avoids displacement, shaking, and misalignment of the anti-collision beam body during assembly, ensuring accurate initial assembly position.

Description

Technical Field

[0001] This invention relates to the field of automotive welding machine technology, and in particular to a welding machine for producing automotive side door anti-collision steel beams. Background Technology

[0002] A welding machine is a processing device that achieves a permanent connection by heating, pressurizing, or both, and with or without filler material, causing plastic deformation, interatomic diffusion, or fusion at the joint of workpieces.

[0003] In the assembly and welding of automotive side door anti-collision beams, clamping components are key parts for ensuring workpiece assembly accuracy, welding stability, and product consistency. Currently, traditional clamping components used in the industry generally suffer from single-function and simple structure, relying mostly on simple clamping force for fixation. They lack specialized positioning guidance and limiting constraint structures, making it impossible to quickly, accurately, and reliably pre-position the automotive side door anti-collision beam. This leads to workpiece misalignment, displacement, and wobbling during clamping, making it difficult to guarantee the relative positional accuracy between the anti-collision beam and the door body, directly affecting subsequent welding quality and product safety. Furthermore, during the welding process of the anti-collision beam… During the process, a large amount of metal spatter and welding slag are generated. These spatters easily adhere to the surfaces and mating gaps of the clamping parts and positioning structures. Over time, this accumulation can cause problems such as uneven positioning surfaces, increased mating gaps, and uneven clamping forces, significantly reducing the positioning accuracy and clamping stability of the device. Consequently, it affects the workpiece assembly accuracy and welding reliability. Traditional structures do not have self-cleaning functions, and spatter accumulation can only be cleaned manually by stopping the machine. This not only results in high labor intensity and low work efficiency but also increases equipment maintenance costs and production downtime, significantly impacting the continuous operation of the production line. Therefore, this application provides a welding machine for the production of automotive side door anti-collision steel beams to meet the requirements. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a welding machine for the production of automotive side door anti-collision steel beams. By setting a positioning and limiting mechanism and a reinforcing limiting mechanism, the anti-collision beam body can be quickly and accurately positioned and initially constrained through the positioning and limiting mechanism. This effectively avoids the anti-collision beam body from shifting, shaking and misaligning during the assembly process, and ensures the accuracy of the initial assembly position. The above settings can solve the problem of cumbersome positioning operations for various components of automotive side door anti-collision steel beams.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] A welding machine for producing anti-collision steel beams for automobile side doors includes a first mounting frame, a welding machine body mounted on the top of the first mounting frame, a second mounting frame mounted on one side of the first mounting frame, a base plate mounted on the top of the second mounting frame, a top plate rotatably connected to the top of the base plate via a pivot, an anti-collision beam body mounted on the top of the top plate, the anti-collision beam body consisting of a crossbar, a first connecting piece, and a second connecting piece; a positioning and limiting mechanism for positioning and limiting the anti-collision beam body, the positioning and limiting mechanism being connected to the top plate; and a reinforcing limiting mechanism for enhancing the limiting effect of the positioning and limiting mechanism, the reinforcing limiting mechanism being connected to the top plate.

[0007] Optionally, the positioning and limiting mechanism includes a first limiting block installed on the top of the top plate, a second limiting block installed on the top of the top plate, first supporting limiting blocks installed on both sides of the top of the top plate, a second supporting limiting block provided on the side of the top of the top plate near the first limiting block, a fourth supporting limiting block fixedly connected to the top of the side of the second supporting limiting block near the first limiting block, and a fifth supporting limiting block fixedly connected to the side of the top of the top plate near the second limiting block.

[0008] Optionally, the cross-sections of the first limiting block and the second limiting block are both close to L-shaped, the shape of the first limiting block is adapted to the side wall contour shape of the first connecting piece, and the shape of the second limiting block is adapted to the side wall contour shape of the second connecting piece.

[0009] Optionally, the shape of the first support limiting block is adapted to the shape of the crossbar, and the top of the fourth support limiting block is provided with a protrusion.

[0010] Optionally, the shapes of the fourth support limiting block and the second support limiting block are both adapted to the bottom contour shape of the first connecting piece, and the shape of the fifth support limiting block is adapted to the bottom contour shape of the second connecting piece.

[0011] Optionally, the first limiting block is provided with a first scraper that matches the shape of the first limiting block on one side near the center of the top plate, and a first spring is fixedly connected to the bottom of the first scraper. The second limiting block is provided with a second scraper that matches the shape of the second limiting block on one side near the center of the top plate, and a second spring is fixedly connected to the bottom of the second scraper.

[0012] Optionally, the reinforcing limiting mechanism includes a fixing block installed on the top of the top plate. A limiting groove is formed on the side of the fixing block away from the center of the top plate. A third limiting block is provided in the limiting groove. A threaded sleeve is fixedly connected to one side of the third limiting block. A screw is inserted into the threaded sleeve. A throttle is fixedly connected to the top of the screw. A connecting rod is fixedly connected to the side of the third limiting block away from the threaded sleeve. The fixing block, limiting groove, third limiting block, threaded sleeve, screw, throttle, and connecting rod together form an adjustment assembly. There are two adjustment assemblies. One adjustment assembly has a first top plate on both sides. The other adjustment assembly has a second top plate and two third top plates on both sides.

[0013] Optionally, the cross-sections of the limiting groove and the third limiting block are both square, the fixed block has a movable groove adapted to the shape of the screw sleeve, and the bottom of the screw is rotatably connected to the top plate.

[0014] Optionally, the shape of the first top piece is adapted to the top contour shape of the second connecting piece, the shape of the second top piece is adapted to the contour shape of the crossbar, and the shape of the third top piece is adapted to the top contour shape of the first connecting piece.

[0015] Optionally, a third mounting bracket is provided on one side of the bottom of the base plate, and a first motor is mounted on the third mounting bracket. The first motor is used to drive the top plate to rotate and flip. A collection box is mounted on the top of the second mounting bracket, and a fourth mounting bracket is mounted inside the collection box. A second motor is mounted on the top of the fourth mounting bracket. A rotating block is fixedly connected to the output end of the second motor. A third spring is provided in a ring at equal intervals on the rotating block. An end block is fixedly connected to the end of the third spring away from the rotating block.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] In the above solution, by setting up a positioning and limiting mechanism and a reinforcing limiting mechanism, the positioning and limiting mechanism can quickly and accurately position the anti-collision beam body and complete the initial limiting constraint, effectively preventing the anti-collision beam body from shifting, shaking, and misaligning during assembly, ensuring the accuracy of the initial assembly position. Then, the reinforcing limiting mechanism is used to further limit and fasten the anti-collision beam body, forming a double limiting and fixing effect, so that the anti-collision beam body can be stably and reliably set on the top of the roof plate, significantly improving the structural stability, positional accuracy, and overall firmness after assembly. At the same time, the positioning and limiting mechanism and the reinforcing limiting mechanism work together to complete the positioning, limiting, and fixing of two anti-collision beam bodies at one time, eliminating repeated disassembly and adjustment steps and greatly improving the installation and fixing efficiency.

[0018] By incorporating a first limiting block, a second limiting block, a second support limiting block, a fourth support limiting block, and a fifth support limiting block within the positioning and limiting mechanism, the anti-collision beam body can be quickly and accurately positioned and initially constrained, effectively preventing the anti-collision beam body from shifting, shaking, or misaligning during assembly and ensuring accurate initial assembly position.

[0019] By incorporating a first scraper and a second spring within the positioning and limiting mechanism, welding spatter can be automatically scraped off during assembly and welding processes, in conjunction with elastic movable components. Furthermore, after welding is completed, the top plate is rotated via a drive mechanism, and vibration is generated by a striking mechanism to thoroughly clean and collect the residue, ensuring the long-term accuracy and reliability of the positioning structure.

[0020] By incorporating a first, second, and third top plate within the reinforced limiting mechanism, the anti-collision beam body can be further limited and secured, forming a double-limiting and fixing effect. This ensures the anti-collision beam body can be stably and reliably mounted on the top plate, significantly improving the structural stability, positional accuracy, and overall robustness after assembly. Furthermore, the positioning and limiting mechanism, used in conjunction with the reinforced limiting mechanism, can complete the positioning, limiting, and fixing of two anti-collision beam bodies in one operation, eliminating repetitive disassembly and adjustment steps, greatly improving installation and fixing efficiency, simplifying the assembly process, and enhancing the overall ease of assembly and practicality of the device.

[0021] By employing a dual-station design in the device, the anti-collision beam body is positioned and clamped on one side, while welding is performed simultaneously on the other side. After welding is completed, the stations can be quickly switched, alternating between unloading, assembly, and welding, eliminating process waiting time and significantly improving overall work efficiency. The device has a simple overall structure and is easy and quick to operate, achieving efficient, stable, and highly automated continuous operation while ensuring assembly and welding quality.

[0022] In summary, this device not only allows for rapid and accurate positioning and double fastening of the anti-collision beam body through the cooperation of the positioning and limiting mechanisms and the reinforcement limiting mechanism, preventing assembly deviation and improving stability and accuracy, but also enables the clamping of two anti-collision beam bodies at one time, improving efficiency. Furthermore, the dual-station design allows for alternating operations without waiting. The device has a simple structure, is easy to operate, and ensures quality and efficient continuous operation. Attached Figure Description

[0023] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0024] Figure 1 A first-person perspective 3D structural diagram of a welding machine used for producing automotive side door anti-collision steel beams;

[0025] Figure 2 A second-view 3D structural diagram of a welding machine used for producing anti-collision steel beams for automobile side doors;

[0026] Figure 3 A first-view magnified three-dimensional structure diagram showing the assembly of the first and second limiting blocks;

[0027] Figure 4 A schematic diagram of a second-view magnified structure assembled with the first and second limiting blocks;

[0028] Figure 5 for Figure 4 Enlarged structural diagram at point A in the middle;

[0029] Figure 6 A three-dimensional enlarged structural diagram of the assembly of the second and fifth support limiting blocks;

[0030] Figure 7 for Figure 6 Enlarged structural diagram at point B;

[0031] Figure 8 for Figure 2 Enlarged structural diagram at point C;

[0032] Figure 9 for Figure 2 Enlarged structural diagram at point D;

[0033] Figure 10 A magnified three-dimensional structural diagram of the assembly of the second scraper and the second spring;

[0034] Figure 11 A magnified three-dimensional structural diagram of the assembly of the first scraper and the first spring;

[0035] Figure 12 An enlarged structural diagram of the first scraper blade and the first spring assembly;

[0036] Figure 13 for Figure 12 Enlarged structural diagram at point E;

[0037] Figure 14 This is a three-dimensional enlarged structural diagram of the anti-collision beam body;

[0038] Figure 15 Enlarged structural diagram of the connecting rod and the first top plate assembly;

[0039] Figure 16 An enlarged schematic diagram of the connecting rod and the second top plate assembly.

[0040] Figure label:

[0041] 1. First mounting bracket; 2. Welding machine body; 3. Second mounting bracket; 4. Base plate; 5. Top plate; 6. First limiting block; 7. Second limiting block; 8. First support limiting block; 9. Anti-collision beam body; 10. Third mounting bracket; 11. Second support limiting block; 12. Fourth support limiting block; 13. Protrusion; 14. First scraper; 15. First spring; 16. Fifth support limiting block; 17. Second scraper; 18. Second spring; 19. Fixing block; 20. Limiting groove; 21. Third limiting block; 22. Screw sleeve; 23. Screw; 24. Rotary handle; 25. Connecting rod; 26. First top plate; 27. Second top plate; 28. Third top plate; 29. ​​First motor; 30. Collection box; 31. Fourth mounting bracket; 32. Second motor; 33. Rotating block; 34. Third spring; 35. End block.

[0042] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0043] The welding machine for producing anti-collision steel beams for automobile side doors provided by the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should also be noted that, in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can also use other alternative methods to implement some known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0044] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when describing a specific feature, structure, or characteristic in conjunction with embodiments, the implementation of such feature, structure, or characteristic in conjunction with other embodiments, whether or not explicitly described, should be within the knowledge of those skilled in the art.

[0045] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0046] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0047] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0048] like Figure 1 , Figure 2 and Figure 14As shown, an embodiment of the present invention provides a welding machine for producing anti-collision steel beams for automobile side doors, including a first mounting frame 1, a welding machine body 2 mounted on the top of the first mounting frame 1, a second mounting frame 3 mounted on one side of the first mounting frame 1, a base plate 4 mounted on the top of the second mounting frame 3, a top plate 5 rotatably connected to the top of the base plate 4 via a rotating shaft, an anti-collision beam body 9 provided on the top of the top plate 5, the anti-collision beam body 9 being composed of a crossbar, a first connecting piece, and a second connecting piece; a positioning and limiting mechanism for positioning and limiting the anti-collision beam body 9, connected to the top plate 5; and a reinforcing limiting mechanism for enhancing the limiting effect of the positioning and limiting mechanism, connected to the top plate 5. The welding machine body 2 is a mature existing technology, and its working principle and specific structure will not be described in detail here. A driving mechanism is provided on the first mounting frame 1, which can drive the welding machine body 2. Moving on the first mounting frame 1, this device can quickly and accurately position the anti-collision beam body 9 through the positioning and limiting mechanism, and complete the initial limiting constraint, effectively preventing the anti-collision beam body 9 from shifting, shaking, and misaligning during the assembly process, ensuring the accuracy of the initial assembly position. Then, the reinforcing limiting mechanism is used to further limit and fasten the anti-collision beam body 9, forming a double limiting and fixing effect, so that the anti-collision beam body 9 can be stably and reliably set on the top of the top plate 5, significantly improving the structural stability, positional accuracy, and overall firmness after assembly. At the same time, the positioning and limiting mechanism and the reinforcing limiting mechanism work together to complete the positioning, limiting, and fixing of two anti-collision beam bodies 9 at one time, eliminating repeated disassembly and adjustment steps, greatly improving the installation and fixing efficiency, simplifying the assembly process, and improving the assembly convenience and practicality of the overall device. The specific working principle and structure of the above positioning and limiting mechanism and the reinforcing limiting mechanism are detailed below.

[0049] like Figures 2 to 7 and Figures 10 to 13As shown, the positioning and limiting mechanism includes a first limiting block 6 installed on the top of the top plate 5, a second limiting block 7 installed on the top of the top plate 5, first supporting limiting blocks 8 installed on both sides of the top of the top plate 5, a second supporting limiting block 11 provided on the side of the top of the top plate 5 near the first limiting block 6, a fourth supporting limiting block 12 fixedly connected to the top of the side of the second supporting limiting block 11 near the first limiting block 6, and a fifth supporting limiting block 16 fixedly connected to the side of the top of the top plate 5 near the second limiting block 7. The specific connection method between the components installed on the top of the top plate 5 and the top plate 5 is not limited here. Optionally, they can be integrally fixedly connected, screwed, or glued. The second supporting limiting block 11 and the fourth supporting limiting block 12 are integrally formed. The structure has good stability and is convenient to manufacture and use. The cross-sections of the first limiting block 6 and the second limiting block 7 are both close to L-shaped. The shape of the first limiting block 6 matches the side wall contour of the first connecting piece, the shape of the second limiting block 7 matches the side wall contour of the second connecting piece, the shape of the first support limiting block 8 matches the shape of the crossbar, the top of the fourth support limiting block 12 is provided with a protrusion 13, and the shapes of the fourth support limiting block 12 and the second support limiting block 11 both match the bottom contour of the first connecting piece. This allows each structure to provide a good limiting effect on the anti-collision beam body 9. The shape of the fifth support limiting block 16 matches the bottom contour of the second connecting piece. By utilizing the first limiting block... The first connecting piece is limited on both sides by the fourth support limiting block 12 and the protrusion 13, which simultaneously limit and support the bottom of the first connecting piece. Because the contours of the fourth support limiting block 12 and the protrusion 13 are uneven, they can cooperate with the lateral limiting of the first limiting block 6 to form a constraint, effectively preventing the first connecting piece from shifting or shaking. This allows the first limiting block 6 to be quickly and accurately placed at the welding position required on the top of the top plate 5. Subsequently, the second limiting block 7 limits both sides of the second connecting piece, and the fifth support limiting block 16 limits and supports the bottom of the second connecting piece. Similarly, the uneven contour of the fifth support limiting block 16 cooperates with the lateral limiting of the second limiting block 7, thus enabling... The second connecting piece is quickly and stably positioned at the welding point on the top of the top plate 5 to ensure assembly accuracy. Then, one side of the crossbar is placed in the groove on the first connecting piece, and the other side of the crossbar is placed in the groove on the second connecting piece. The entire crossbar is then placed on the first support limiting block 8. This quickly completes the positioning and initial limiting of each component of the anti-collision beam body 9. By repeating the above operation, the other anti-collision beam body 9 can be stably positioned on the top plate 5. The cooperation and synergy between the above structures significantly improve the positioning accuracy and assembly efficiency of the overall assembly, simplify the assembly process, reduce the difficulty of alignment, and ensure that each component remains stable and reliable in subsequent processes, providing a stable and reliable foundation for subsequent welding and overall assembly.

[0050] Furthermore, the first limiting block 6 has a first scraper 14 with a shape adapted to the first limiting block 6 on the side near the center of the top plate 5. A first spring 15 is fixedly connected to the bottom of the first scraper 14. The second limiting block 7 has a second scraper 17 with a shape adapted to the second limiting block 7 on the side near the center of the top plate 5. A second spring 18 is fixedly connected to the bottom of the second scraper 17. The first spring 15 is distributed in multiple intervals at the bottom of the first scraper 14, providing stable support for the first scraper 14. The first scraper 14 has a squeezing effect on the first spring 15, pushing it closer to the first limiting block 6, so that the first spring 15 always remains in contact with the second limiting block 7. The outer wall is precisely fitted; the second spring 18 is distributed in multiple intervals at the bottom of the second scraper 17, providing stable support for the second scraper 17. The second spring 18 has a squeezing effect on the second scraper 17, pushing it towards the second limiting block 7, so that the second scraper 17 can always maintain a tight fit with the outer wall of the second limiting block 7; when the first scraper 14 and the second scraper 17 are not subjected to external force, they are located near the top of the first limiting block 6 and the second limiting block 7. When the first connecting piece is placed at the first limiting block 6, the bottom of the first connecting piece will contact the first scraper 14. When the first connecting piece is moved towards the top plate 5, the first scraper 14 is subjected to The first connecting piece moves together with the second connecting piece, and the first spring 15 undergoes elastic deformation. Similarly, when the second connecting piece approaches the second limiting block 7, the bottom of the second connecting piece first contacts the second scraper 17. As the second connecting piece moves towards the top plate 5, the second scraper 17 moves together with the second connecting piece, during which the second spring 18 undergoes elastic deformation. Thus, the first scraper 14 and the second scraper 17 can provide simple limiting for the various components of the anti-collision beam body 9, facilitating quick alignment and assembly. After the various components of the anti-collision beam body 9 are assembled by welding, the anti-collision beam body 9 is removed from the top of the top plate 5, and the first scraper 14 and the second scraper 17 are released from their limiting positions. The first spring 15 and the second spring 18 deform and spring back, causing the first scraper 14 and the second scraper 17 to return to their initial state. During the two movements of the first scraper 14 and the second scraper 17, the outer walls of the first limiting block 6 and the second limiting block 7 can be scraped and cleaned, so that the spatter generated by welding can be dealt with in a timely manner, avoiding the accumulation of impurities that affect the positioning accuracy and bonding effect of subsequent structures. The above structures work together to achieve rapid positioning and reliable limiting of components, while also having an automatic slag removal function, effectively improving assembly efficiency and welding quality, extending the service life of the positioning structure, and ensuring the positioning accuracy and stability of repeated assembly operations.

[0051] like Figure 1 , Figure 3 , Figure 15 and Figure 16As shown, the reinforcing limiting mechanism includes a fixing block 19 installed on the top of the top plate 5. A limiting groove 20 is formed on the side of the fixing block 19 away from the center of the top plate 5. A third limiting block 21 is provided within the limiting groove 20. A threaded sleeve 22 is fixedly connected to one side of the third limiting block 21. A screw 23 is inserted into the threaded sleeve 22. A handle 24 is fixedly connected to the top of the screw 23. A connecting rod 25 is fixedly connected to the side of the third limiting block 21 away from the threaded sleeve 22. The fixing block 19, limiting groove 20, third limiting block 21, threaded sleeve 22, screw 23, handle 24, and connecting rod 25 together form an adjustment assembly. There are two adjustment assemblies, one of which... Each adjustment component has a first top plate 26 on both sides, and another adjustment component has a second top plate 27 and two third top plates 28 on both sides. The limiting groove 20 and the third limiting block 21 have square cross sections. The fixing block 19 has a movable groove that matches the shape of the screw sleeve 22. The bottom of the screw 23 is rotatably connected to the top plate 5. First, the first top plate 26, the second top plate 27, and the third top plate 28 are adjusted to be away from the top plate 5. After the two first connecting plates are placed in the positions of the two first limiting blocks 6 on one side of the top plate 5 and are pressed tightly against the first limiting blocks 6, the handle 24 is turned by hand to make the screw 23 rotate. Under the action of the threaded transmission, The screw sleeve 22 will drive the third limiting block 21 and the connecting rod 25 to move closer to the top plate 5 until the second top piece 27 on the connecting rod 25 is pressed against the crossbar and the third top piece 28 is pressed against the first connecting piece. At this time, a single action on one side can simultaneously complete the clamping and positioning of one side of the two anti-collision beam bodies 9, realizing single-station synchronous clamping and synchronous positioning. One side of the first connecting piece and the crossbar is stably fixed. Similarly, after placing the two second connecting pieces at the positions of the two second limiting blocks 7 on the other side of the top plate 5 and pressing them against the second limiting blocks 7, the handle 24 on that side is turned by hand to make the screw 23 rotate. Under the action of the threaded transmission, the screw sleeve 22 will... The third limiting block 21 and the connecting rod 25 are moved towards the top plate 5 until the first top piece 26 on the connecting rod 25 on this side is simultaneously pressed against the crossbar and the second connecting piece; at this time, the other side of the second connecting piece and the crossbar is stably fixed; the above structures work together to achieve rapid pressing, positioning and reliable clamping of the first connecting piece, the second connecting piece and the crossbar, and can simultaneously fix the two anti-collision beam bodies 9 on one side, greatly simplifying the clamping steps, improving assembly efficiency, effectively ensuring that the components do not shift or loosen during the welding process, significantly improving assembly accuracy and welding stability, and providing a solid and reliable clamping foundation for subsequent welding operations.

[0052] Furthermore, the shape of the first top piece 26 is adapted to the top contour of the second connecting piece and the top contour of the crossbar, so that the first top piece 26 can be stably positioned on one side of the top of the crossbar, the second top piece 27 is adapted to the contour shape of the crossbar, and the third top piece 28 is adapted to the top contour shape of the first connecting piece, so that the second top piece 27 can be stably positioned on the other side of the top of the crossbar, and the third top piece 28 can be stably positioned on the top of the first connecting piece.

[0053] like Figure 2 , Figure 8 and Figure 9As shown, a third mounting bracket 10 is provided on one side of the bottom of the base plate 4. A first motor 29 is mounted on the third mounting bracket 10. The first motor 29 is used to drive the top plate 5 to rotate and flip. A collection box 30 is mounted on the top of the second mounting bracket 3. A fourth mounting bracket 31 is installed inside the collection box 30. A second motor 32 is mounted on the top of the fourth mounting bracket 31. A rotating block 33 is fixedly connected to the output end of the second motor 32. A third spring 34 is provided in a ring at equal intervals on the rotating block 33. An end block 35 is fixedly connected to the end of the third spring 34 away from the rotating block 33. The third mounting bracket 10 is used to install and fix the first motor 29. The third mounting bracket 10 and its installation and fixing method with the first motor 29 are existing mature technologies. The working principle and specific structure of the first motor 29 and the second motor 32 are existing mature technologies, and their working principles and specific structures will not be elaborated here. Similarly, the fourth mounting bracket 31 is used to install the second motor 32. The fourth mounting bracket 31 and its installation and fixing method with the second motor 32 are existing mature technologies, and their working principles and specific structures will not be elaborated here. The first motor 29 is used to drive the top plate 5 to rotate, providing power support for the rotation of the top plate 5. The second motor 32 is used to drive the rotating block 33 to rotate, providing power for subsequent residue knocking and cleaning. By starting the first motor 29, the top plate 5 can be moved along the edge of the bottom plate 4. The rotating shaft rotates smoothly, causing the top plate 5 and its various structures to rotate synchronously. During the rotation, welding spatter and residue remaining on the top of the top plate 5 will fall into the collection box 30 under gravity. With the scraping action of the first scraper 14 and the second scraper 17, the spatter and residue can be thoroughly cleaned and collected, thus avoiding the accumulation of residue from affecting the positioning accuracy and assembly effect of each structure, maintaining the cleanliness of each component of the device, reducing the workload of subsequent manual cleaning, and lowering maintenance costs. When the top plate 5 rotates to 180 degrees, the second motor 32 is started, which drives the rotating block 33 to rotate, and the rotating block 33 further drives the third spring 3. 4 and end blocks 35 rotate synchronously, and multiple end blocks 35 will strike the surface of the top plate 5 in sequence and evenly. The vibration generated by the striking, combined with the effect of gravity, can completely knock off the stubborn residues that are difficult to fall off by simply flipping them off the surface of the top plate 5, so that they fall into the collection box 30 for collection, thereby further improving the thoroughness of residue cleaning. Furthermore, this device adopts a dual-station design. The top plate 5 and all its supporting components are set into two groups, which, together with the movable welding machine body 2, realize the alternating operation of the stations: when the positioning and fixing of the various components of the anti-collision beam body 9 are carried out at one station of the top plate 5, the welding operation can be carried out at the other station of the top plate 5 simultaneously, without waiting for the previous station to complete all processes.After welding at station 5 of the top plate on one side is completed, that station can immediately be unloaded and cleaned, and the positioning and fixing of the next set of anti-collision beams 9 can begin. Simultaneously, the welding machine body 2 can quickly move to station 5 of the top plate on the other side, where positioning and fixing have just been completed, to start a new round of welding operations. This dual-station alternating design completely breaks down the process barriers of single-station "positioning-welding-unloading," avoiding waiting time during process transitions. Therefore, it significantly improves overall work efficiency, shortens the assembly and welding cycle of individual products, and increases production capacity. Furthermore, the overall structure of the device is relatively simple, and the operation of each component is convenient, requiring no complex professional skills. It is relatively easy and quick to use, reducing the labor intensity of operators and the probability of operational errors.

[0054] The working principle of the technical solution provided by this invention is as follows:

[0055] In use, the first limiting block 6 first limits the two sides of the first connecting piece, and the fourth supporting limiting block 12 and the protrusion 13 limit the bottom of the first connecting piece. The concave and convex contours of the fourth supporting limiting block 12 and the protrusion 13 cooperate with the lateral limiting of the first limiting block 6, allowing the first connecting piece to be quickly placed at the welding position on the top of the top plate 5. Then, the second limiting block 7 first limits the two sides of the second connecting piece, and the fifth supporting limiting block 16 first limits the bottom of the second connecting piece. The concave and convex contours of the fifth supporting limiting block 16 cooperate with the limiting of the second limiting block 7, allowing the second connecting piece to be quickly placed on the top plate 5. The welding points at the top; then place one side of the crossbar in the groove of the first connecting piece, and the other side in the groove of the second connecting piece, and place the crossbar on the first support limiting block 8, quickly completing the positioning and simple limiting of each component of the anti-collision beam body 9. Repeat the above operation to position another anti-collision beam body 9 on the second mounting bracket 3; the first spring 15 is distributed at multiple intervals at the bottom of the first scraper 14, providing stable support for the first scraper 14. The first scraper 14 has a squeezing effect on the first spring 15 towards the first limiting block 6, so that the first spring 15 is always in precise contact with the outer wall of the second limiting block 7; the second spring Multiple springs 18 are spaced apart at the bottom of the second scraper 17, providing stable support for the second scraper 17. The second springs 18 exert a squeezing force on the second scraper 17 towards the second limiting block 7, ensuring that the second scraper 17 is always in close contact with the outer wall of the second limiting block 7. When the first scraper 14 and the second scraper 17 are not subjected to external force, they are located near the top of the first limiting block 6 and the second limiting block 7. When the first connecting piece is inserted into the first limiting block 6 and moves towards the top plate 5, it will cause the first scraper 14 to move together and cause the first spring 15 to undergo elastic deformation. The second connecting piece moves closer to the second limiting block 7 and towards the top plate. When moving in direction 5, the second scraper 17 will move together and the second spring 18 will undergo elastic deformation, thereby achieving simple limiting of the anti-collision beam body 9 component through the first scraper 14 and the second scraper 17; after welding is completed, the anti-collision beam body 9 is removed from the top of the top plate 5, the first scraper 14 and the second scraper 17 are released from the limiting, the first spring 15 and the second spring 18 deform and spring back to reset the first scraper 14 and the second scraper 17. During the movement of the first scraper 14 and the second scraper 17, the outer walls of the first limiting block 6 and the second limiting block 7 can be scraped and cleaned in time to remove welding spatter and ensure positioning accuracy.During the fastening operation, first adjust the first top plate 26, the second top plate 27, and the third top plate 28 to be away from the top plate 5. Place the two first connecting plates on the two first limiting blocks 6 on one side of the top plate 5 and tighten them. Then, turn the handle 24 to drive the screw 23 to rotate. Under the action of the thread, the threaded sleeve 22 drives the third limiting block 21 and the connecting rod 25 to move towards the top plate 5 until the second top plate 27 on the connecting rod 25 is tightly pressed against the crossbar and the third top plate 28 is tightly pressed against the first connecting plate. One action on one side can simultaneously complete the fastening of two anti-collision beams. Similarly, for the clamping and fixing on one side of the main body 9, the two second connecting pieces are placed at the positions of the two second limiting blocks 7 on the other side of the top plate 5 and pressed tightly. Rotating the handle 24 on this side causes the screw sleeve 22 to drive the third limiting block 21 and the connecting rod 25 towards the top plate 5 until the first top piece 26 on the connecting rod 25 on this side simultaneously presses against the crossbar and the second connecting piece, completing the stable fixing of the other side of the anti-collision beam main body 9; the third mounting bracket 10 is used to install and fix the first motor 29, and the fourth mounting bracket 31 is used to install the second motor 32. The first motor 29 is used to drive the top plate 5 to rotate, and the second motor 32 is used to drive the rotating block 33 to rotate. Starting the first motor 29 can make the top plate 5 rotate along the pivot of the bottom plate 4, causing the top plate 5 and its structures to rotate synchronously, so that the splashed residue on the top of the top plate 5 falls into the collection box 30, and the residue is collected in conjunction with the scraping component. When the top plate 5 is rotated to 180 degrees, the second motor 32 is started. The second motor 32 drives the rotating block 33 to rotate, and the rotating block 33 drives the third spring 34 and the end block 35 to rotate. Multiple end blocks 35 strike the surface of the top plate 5 in sequence. The device utilizes vibration combined with gravity to further dislodge and collect the residue. It features a dual-station design, with two sets of top plates 5 and their components. Working in conjunction with the movable welding machine body 2, while one station on top plate 5 is used for positioning and fixing the anti-collision beam body 9, welding is simultaneously performed on the other station. After welding on one side is completed, the material is unloaded and the next set of anti-collision beam bodies 9 is fixed. The welding machine body 2 then moves to the other station to continue welding, achieving continuous alternating operations and significantly improving overall work efficiency. The device has a simple structure and is convenient and quick to use.

[0056] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0057] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A welding machine for producing automotive side door anti-collision steel beams, comprising a first mounting frame, characterized in that, The welding machine body is mounted on the top of the first mounting frame, and a second mounting frame is mounted on one side of the first mounting frame. A base plate is mounted on the top of the second mounting frame, and a top plate is rotatably connected to the top of the base plate via a rotating shaft. A crash beam body is provided on the top of the top plate, and the crash beam body is composed of a crossbar, a first connecting piece, and a second connecting piece. A positioning and limiting mechanism is used to position and limit the anti-collision beam body, and the positioning and limiting mechanism is connected to the top plate; A reinforcing limiting mechanism is provided to enhance the limiting effect of the positioning limiting mechanism, and the reinforcing limiting mechanism is connected to the top plate.

2. The welding machine for producing automotive side door anti-collision steel beams according to claim 1, characterized in that, The positioning and limiting mechanism includes a first limiting block installed on the top of the top plate, a second limiting block installed on the top of the top plate, first supporting limiting blocks installed on both sides of the top of the top plate, a second supporting limiting block provided on the side of the top of the top plate near the first limiting block, a fourth supporting limiting block fixedly connected to the top of the side of the second supporting limiting block near the first limiting block, and a fifth supporting limiting block fixedly connected to the side of the top of the top plate near the second limiting block.

3. The welding machine for producing automotive side door anti-collision steel beams according to claim 2, characterized in that, The cross-sections of the first limiting block and the second limiting block are both close to L-shaped. The shape of the first limiting block is adapted to the side wall contour shape of the first connecting piece, and the shape of the second limiting block is adapted to the side wall contour shape of the second connecting piece.

4. The welding machine for producing automotive side door anti-collision steel beams according to claim 2, characterized in that, The shape of the first support limiting block is adapted to the shape of the crossbar, and the top of the fourth support limiting block is provided with a protrusion.

5. The welding machine for producing automotive side door anti-collision steel beams according to claim 2, characterized in that, The shapes of the fourth support limiting block and the second support limiting block are adapted to the bottom contour shape of the first connecting piece, and the shape of the fifth support limiting block is adapted to the bottom contour shape of the second connecting piece.

6. The welding machine for producing automotive side door anti-collision steel beams according to claim 2, characterized in that, The first limiting block has a first scraper that matches the shape of the first limiting block on one side near the center of the top plate. A first spring is fixedly connected to the bottom of the first scraper. The second limiting block has a second scraper that matches the shape of the second limiting block on one side near the center of the top plate. A second spring is fixedly connected to the bottom of the second scraper.

7. The welding machine for producing automotive side door anti-collision steel beams according to claim 1, characterized in that, The reinforced limiting mechanism includes a fixing block installed on the top of the top plate. A limiting groove is formed on the side of the fixing block away from the center of the top plate. A third limiting block is provided in the limiting groove. A threaded sleeve is fixedly connected to one side of the third limiting block. A screw is inserted into the threaded sleeve. A throttle is fixedly connected to the top of the screw. A connecting rod is fixedly connected to the side of the third limiting block away from the threaded sleeve. The fixing block, limiting groove, third limiting block, threaded sleeve, screw, throttle, and connecting rod together form an adjustment assembly. There are two adjustment assemblies. One adjustment assembly has a first top plate on both sides. The other adjustment assembly has a second top plate and two third top plates on both sides.

8. The welding machine for producing automotive side door anti-collision steel beams according to claim 7, characterized in that, The cross-sections of the limiting groove and the third limiting block are both square. The fixed block has a movable groove that matches the shape of the screw sleeve. The bottom of the screw is rotatably connected to the top plate.

9. The welding machine for producing automotive side door anti-collision steel beams according to claim 7, characterized in that, The shape of the first top piece is adapted to the top contour shape of the second connecting piece, the shape of the second top piece is adapted to the contour shape of the crossbar, and the shape of the third top piece is adapted to the top contour shape of the first connecting piece.

10. The welding machine for producing automotive side door anti-collision steel beams according to claim 7, characterized in that, A third mounting bracket is provided on one side of the bottom of the base plate. A first motor is mounted on the third mounting bracket. The first motor is used to drive the top plate to rotate and flip. A collection box is mounted on the top of the second mounting bracket. A fourth mounting bracket is mounted inside the collection box. A second motor is mounted on the top of the fourth mounting bracket. A rotating block is fixedly connected to the output end of the second motor. A third spring is provided in a ring at equal intervals on the rotating block. An end block is fixedly connected to the end of the third spring away from the rotating block.

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