Turnplate platform and automatic welding system

Abstract

The application discloses a turnover plate platform and an automatic welding system, and relates to the technical field of automobile turnover plate unloading. The turnover plate platform comprises a first platform, a second platform and a third platform which are sequentially welded and connected, and the three platforms are respectively provided with beam group units, the beam group units are used for enabling the cross sections of the first platform, the second platform and the third platform to be respectively arranged in a U shape, the beam group units comprise a panel, a main beam and a plurality of auxiliary beams which are mutually welded and connected, the panel is provided with the main beams on opposite sides, the auxiliary beams are provided with a plurality of auxiliary beams, the main beams and the auxiliary beams are arranged on the same surface of the panel, and the plurality of auxiliary beams are located between the two main beams. The turnover plate platform can enhance the torsion resistance, bending resistance and deformation resistance of the whole platform.

Description

Technical Field

[0001] This invention relates to the field of automobile tipping unloading technology, and in particular to a tipping platform and an automatic welding system. Background Technology

[0002] Vehicle tipping platforms, generally speaking, need to withstand significant torque, bending moment, and deformation loads. Their overall torsional, bending, and deformation resistance directly affects the operational stability and structural safety of the equipment. Traditional tipping platform structures often employ integral welding or casting followed by integral machining. This places high demands on the stroke, precision, and clamping capabilities of the machining equipment. Furthermore, the finished product is heavy, requiring large lifting equipment for on-site installation. This is significantly limited by site space and transportation conditions, resulting in difficult, costly, and time-consuming on-site installation, leading to low production efficiency. Moreover, the platform's overall torsional, bending, and deformation resistance is insufficient, affecting structural stability and operational accuracy, making it difficult to balance production efficiency and structural strength. Summary of the Invention

[0003] The main objective of this invention is to provide a flip-up platform that addresses the technical problems of traditional flip-up platforms, such as high processing and installation difficulty, high cost, and difficulty in balancing the overall torsional and bending resistance with production efficiency.

[0004] To achieve the above objectives, the present invention proposes a flip-up platform, comprising: The first platform, the second platform, and the third platform are welded together in sequence. Each of the three platforms is provided with a beam unit, and the beam unit makes the cross-sections of the first platform, the second platform, and the third platform U-shaped. The beam unit includes a panel, main beams and secondary beams that are welded together. The main beams are respectively provided on opposite sides of the panel. Multiple secondary beams are provided. The main beams and secondary beams are located on the same side of the panel. The multiple secondary beams are located between two main beams.

[0005] In one embodiment, the beam unit further includes a crossbeam, which spans and connects multiple of the secondary beams, and each end of the crossbeam is respectively connected to two of the main beams.

[0006] In one embodiment, the crossbeams are provided in multiple forms, and the multiple crossbeams are spaced apart along the extension direction of the main beam; and / or, The cross-section of the beam is H-shaped.

[0007] In one embodiment, the main beam has a U-shaped cross-section; and / or, The cross-section of the secondary beam is U-shaped.

[0008] In one embodiment, the main beam includes stiffening plates and vertical plates. The stiffening plates form a U-shaped cavity, and the vertical plates are disposed in the U-shaped cavity and welded to the stiffening plates. A plurality of vertical plates are provided along the extension direction of the main beam. Alternatively, the main beam includes stiffening plates, side plates, and vertical plates. The stiffening plates and side plates form a U-shaped cavity. The vertical plates are disposed within the U-shaped cavity and welded to the stiffening plates. Multiple vertical plates are provided along the extension direction of the main beam.

[0009] In one embodiment, connecting guard plates are respectively provided between the first platform and the second platform, and between the second platform and the third platform; the connecting guard plates are disposed on the main beam and welded to the main beam; and / or, A connecting plate is provided between the first platform and the second platform, and between the second platform and the third platform. The connecting plate is located on the sub-beam, and multiple sub-beams are welded to the connecting plate.

[0010] In one embodiment, the second platform is provided with connecting boxes on both sides. Each connecting box includes two side plates and a bottom plate connecting the two side plates, which together form a U-shaped groove. One of the side plates is provided with a grid, which is located in the U-shaped groove. The two side plates are respectively located on the two side walls of the main beam, and the side plates are connected to a gantry frame.

[0011] In one embodiment, the third platform is provided with a wheel stop assembly, which includes a front wheel stop and a rear wheel stop, with two of each of the front and rear wheel stops provided along the width direction of the third platform.

[0012] In one embodiment, the third platform is provided with two coaxially arranged main shafts, which extend from the two side walls of the third platform respectively, and the main shafts are located at one end of the third platform near the wheel stop.

[0013] The present invention also proposes an automatic welding system for a flip-up platform, used for the flip-up platform as described above, wherein the welding system comprises: The bending machine is equipped with a mold assembly, a material storage platform and an electromagnetic chuck feeder. The material storage platform is used to place raw materials, and the mold assembly bends the raw materials to form the sub-beam of the flip-plate platform. A conveyor roller conveyor is located at the discharge end of the bending machine and is used to convey the bent secondary beam. The conveyor roller conveyor is also used to convey the main beam. A stacking device is located on one side of the conveyor roller conveyor and is used to flip the sub-beam so that the open side of the sub-beam faces downward, and to stack multiple sub-beams into a group and transport them through the conveyor roller conveyor. The welding production line includes a welding robot, a welding platform, and a three-axis truss device. The welding platform is used to place the panel of the flip-up platform. The three-axis truss device picks up the sub-beam from the conveyor roller conveyor and moves it to the panel. The welding robot is used for the welding process.

[0014] This invention employs a modular design, where a first, second, and third platform are sequentially welded together. This allows the tilting platform to be processed and transported in sections before being assembled by welding. This avoids the limitations of traditional modular platform manufacturing, which requires hoisting the entire device and necessitates large lifting equipment and ample space. Modular production of the tilting platform reduces manufacturing and installation difficulties and improves production efficiency. Furthermore, each of the first, second, and third platforms incorporates beam units, resulting in a U-shaped cross-section. This enhances the platform's overall resistance to torsion, bending, and deformation, ensuring structural stability and operational accuracy under high tonnage and high torque conditions. Simultaneously, the main beams are located on opposite sides of the panel, with multiple secondary beams positioned between the main beams, increasing the panel's local stiffness and overall load-bearing capacity while suppressing localized deformation under stress. Furthermore, both the main beam and the secondary beam of the platform adopt a U-shaped structure, which forms a unified U-shaped force system, improving the force coordination between the main beam and the secondary beam and the overall torsional, bending and deformation resistance of the platform. This adapts to the overall load-bearing requirements under heavy-load overturning conditions and solves the problems of poor force transmission and local stress concentration caused by the traditional combination of irregular steel with main and secondary beams. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, 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 the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the flip-up platform provided by the present invention; Figure 2 This is a schematic diagram of the structure of the first platform of the flip-up platform embodiment provided by the present invention; Figure 3 This is a schematic diagram of the structure of the second platform in an embodiment of the flip-up platform provided by the present invention; Figure 4 This is a schematic diagram of the structure of the third platform in the embodiment of the flip-up platform provided by the present invention; Figure 5 This is a schematic diagram of the main beam of an embodiment of the flip-up platform provided by the present invention; Figure 6 This is a schematic diagram of the structure of the connecting box in an embodiment of the flip-up platform provided by the present invention; Figure 7 This is a side view of an embodiment of the flip-up platform provided by the present invention. Figure 8 A schematic diagram of the bending machine in the automatic welding system for the flip-plate platform provided by the present invention; Figure 9 This is a schematic diagram of the overall structure of the automatic welding system for the flip-plate platform provided by the present invention.

[0017] Explanation of icon numbers: 1. First platform; 11. Main beam; 111. Stiffening plate; 112. Vertical plate; 113. Beam plate; 12. Secondary beam; 13. Horizontal beam; 14. Connecting guard plate; 15. Connecting composite plate; 2. Second platform; 21. Connecting box; 211. Side plate; 212. Bottom plate; 213. Grille; 3. Third platform; 31. Main shaft; 4. Gantry frame; 5. Wheel stop assembly; 6. Bending machine; 61. Storage platform; 62. Electromagnetic chuck feeder; 621. Magnetic chuck assembly; 63. Lower mold; 64. Upper mold; 65. Front X-axis pusher; 66. Front and rear material support racks; 67. Side discharge machine; 7. Conveying roller conveyor; 8. Stacking device; 9. Lifting equipment; 10. Welding production station; 101. Welding platform; 102. Three-axis truss device; 103. Welding robot.

[0018] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0020] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0021] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0022] In existing technologies, traditional flip-up platform structures are mostly constructed using integral welding or integral casting followed by integral machining. This requires high precision and clamping capacity from the machining equipment, and the finished product is heavy, necessitating large lifting equipment for on-site installation. It is significantly limited by site space and transportation conditions, resulting in difficult, costly, and time-consuming on-site installation, leading to low production efficiency. Furthermore, the platform's overall torsional, bending, and deformation resistance is insufficient, affecting structural stability and operational accuracy, making it difficult to balance production efficiency with structural strength.

[0023] This invention proposes a flip-up platform.

[0024] Please see Figures 1 to 7 As shown, in one embodiment of the present invention, the flip-up platform includes: a first platform 1, a second platform 2, and a third platform 3 connected by welding in sequence. Each of the three platforms is provided with a beam assembly unit, and the beam assembly unit makes the cross-sections of the first platform 1, the second platform 2, and the third platform 3 respectively U-shaped. The beam assembly unit includes a panel, a main beam 11, and a secondary beam 12 connected by welding to each other. The main beam 11 is provided on opposite sides of the panel, and multiple secondary beams 12 are provided. The main beam 11 and the secondary beams 12 are located on the same side of the panel, and the multiple secondary beams 12 are located between two main beams 11.

[0025] In the specific implementation process, the first platform 1, the second platform 2, and the third platform 3 are arranged sequentially along the transverse direction of the flip platform and are fixedly connected by welding to form an integral platform structure. The first platform 1, the second platform 2, and the third platform 3 are each equipped with beam units, which make the cross-sections of the first platform 1, the second platform 2, and the third platform 3 U-shaped. That is, from the transverse cross-section of the flip platform, it can be seen that the upper part of each platform is a panel, with main beams 11 extending downwards on both sides, and secondary beams 12 connecting the bottom or middle, resulting in an overall U-shaped cross-section with the opening facing downwards.

[0026] In the beam unit, the panel is the main load-bearing surface of the platform, typically a flat plate structure. Two main beams 11 are welded to the left and right edges of the panel on opposite sides. The main beams 11 primarily bear bending and torque. Multiple secondary beams 12 are provided, with both the main beams 11 and secondary beams 12 located on the same side of the panel, i.e., below the panel, and the secondary beams 12 positioned between the two main beams 11. Specifically, the multiple secondary beams 12 can be arranged at intervals along the longitudinal direction of the platform, and can be made of I-beams, channel steel, rectangular tubing, or welded steel plates. Welding between the panel and the main beams 11, and between the panel and the secondary beams 12, can use fillet welds or butt welds to ensure reliable connections and continuity of load-bearing capacity.

[0027] The welding connection between the first platform 1, the second platform 2, and the third platform 3 is as follows: the beam units of adjacent platforms are connected by butt welds. Specifically, the panel of the first platform 1 is butt-welded to the panel of the second platform 2, the main beam 11 of the first platform 1 is butt-welded to the main beam 11 of the second platform 2, and the secondary beam 12 of the first platform 1 is welded to the secondary beam 12 of the second platform 2, either correspondingly or through connecting plates. To ensure welding quality, beveling can be performed at the joints, and multiple layers and passes of welding can be applied. Reinforcing plates or connecting plates can also be added at the joints. After welding, the three platforms form a unified whole, allowing for continuous force transfer between segments and preventing stress concentration, thus ensuring overall resistance to torsion, bending, and deformation.

[0028] The technical solution of this invention employs a first platform 1, a second platform 2, and a third platform 3, which are sequentially welded together. This allows the tilting platform to be processed and transported in sections, and then assembled by welding. This avoids the requirements for hoisting the entire equipment and the need for large lifting equipment and space when processing a tilting platform as a whole, as is the case with traditional tilting platforms. Modular production of the tilting platform reduces manufacturing and installation difficulties and improves production efficiency. Furthermore, each of the first platform 1, second platform 2, and third platform 3 is equipped with beam units, making their cross-sections U-shaped. This enhances the overall torsional, bending, and deformation resistance of the platform, ensuring structural stability and operational accuracy under high tonnage and high torque conditions. Simultaneously, the main beams 11 are located on opposite sides of the panel, and multiple secondary beams 12 are located between the two main beams 11, improving the local stiffness and overall load-bearing capacity of the panel and suppressing local deformation under stress. Furthermore, both the main beam 11 and the secondary beam 12 of the platform adopt a U-shaped structure, which forms a unified U-shaped force system, improves the force coordination between the main beam 11 and the secondary beam 12 and the overall torsional, bending and deformation resistance of the platform, adapts to the overall load-bearing requirements under heavy load and overturning conditions, and solves the problems of poor force transmission and local stress concentration caused by the traditional combination of irregular steel with the main and secondary beams 12.

[0029] Furthermore, the beam unit also includes a crossbeam 13, which spans and connects multiple secondary beams 12, and the two ends of the crossbeam 13 are respectively connected to two main beams 11.

[0030] Specifically, crossbeams 13 are spaced apart along the longitudinal direction of the platform. The extension direction of the crossbeams 13 is perpendicular to or at a certain angle to the extension direction of the sub-beams 12, thus forming an intersecting arrangement with multiple sub-beams 12. The two ends of each crossbeam 13 are welded to two main beams 11, and the crossbeams 13 and sub-beams 12 are welded and fixed at the intersection, meaning the crossbeams 13 are supported and connected to the end of the sub-beams 12 away from the panel. In this way, the beam unit, consisting of the panel, main beams 11, sub-beams 12, and crossbeams 13, forms a more stable spatial frame structure. The crossbeams 13 further distribute the load transmitted from the panel to the main beams 11 and also suppress the deformation and torsion of the sub-beams 12 under stress, thereby improving the platform panel's resistance to torsion, bending, and deformation.

[0031] In one embodiment, there are multiple crossbeams 13, which are spaced apart along the extension direction of the main beam 11; and / or, the crossbeams 13 have an H-shaped cross section.

[0032] Specifically, multiple crossbeams 13 are arranged sequentially along the transverse direction of the platform (i.e., perpendicular to the extension direction of the main beams 11) between the two main beams 11, with a certain distance maintained between adjacent crossbeams 13. The multiple crossbeams 13 form a continuous and uniform support in the longitudinal direction, further improving the overall rigidity of the panel and the secondary beams 12, and avoiding panel denting or lateral instability of the secondary beams 12 caused by insufficient local rigidity.

[0033] As another optional implementation, the cross-section of the beam 13 is H-shaped. That is, the beam 13 is made of H-beams or H-section beams welded from steel plates. The H-section beam 13 has a certain bending section modulus and torsional stiffness, which can effectively improve the lateral stiffness of the beam unit and suppress the warping and torsional deformation of the platform section under torque.

[0034] In one embodiment, the main beam 11 has a U-shaped cross-section; and / or, the secondary beam 12 has a U-shaped cross-section.

[0035] Specifically, the main beam 11 adopts a U-shaped cross-section beam, such as channel steel or a U-shaped structure made of steel plate bent and welded, with its opening facing the panel side. The U-shaped cross-section main beam 11 has a certain moment of inertia and torsional stiffness, while its open side facilitates welding connection with the panel, increasing the welding operation space, improving connection reliability and construction convenience.

[0036] As an alternative implementation, the secondary beam 12 has a U-shaped cross-section. The secondary beam 12 can also be made of U-shaped profiles such as channel steel, and its opening direction can be consistent with the opening direction of the main beam 11, i.e., facing the panel. The U-shaped cross-section of the secondary beam 12 ensures its own bending stiffness while facilitating welding connections with the panel, main beam 11, and crossbeam 13, enhancing the integrity and load-bearing capacity of the beam unit and making load distribution more uniform.

[0037] In one embodiment, the main beam 11 includes stiffening plates 111 and upright plates 112. The stiffening plates 111 form a U-shaped cavity, and the upright plates 112 are disposed in the U-shaped cavity and welded to the stiffening plates 111. Multiple upright plates 112 are provided along the extension direction of the main beam 11.

[0038] Specifically, the stiffening ribs 111 form a U-shaped cavity, either by bending or by welding multiple steel plates together to create a hollow cavity structure with a U-shaped cross-section and one open end. The opening of the U-shaped cavity faces the panel. Vertical plates 112 are placed inside the U-shaped cavity and welded to the stiffening ribs 111. Multiple vertical plates 112 are arranged along the extension direction of the main beam 11, that is, multiple vertical plates 112 are arranged at intervals along the length of the main beam 11 and welded to the bottom and sides of the stiffening ribs 111. The vertical plates 112 can be perpendicular to the extension direction of the main beam 11 or at a certain angle to the extension direction to reinforce the U-shaped cavity of the stiffening ribs 111. The shape of the vertical plates 112 can be adapted to the cross-sectional shape of the U-shaped cavity to facilitate welding to the inner wall of the stiffening ribs 111. This effectively improves the cross-sectional stiffness and local stability of the main beam 11. The U-shaped cavity formed by the stiffening slab 111 itself has high bending and torsional resistance, while multiple vertical plates 112 are spaced apart along the extension direction of the main beam 11, which can support the sides and bottom of the stiffening slab 111, preventing the main beam 11 from undergoing local buckling deformation of the flanges or web when subjected to large bending moments, torques or local concentrated loads, thereby improving the overall load-bearing capacity and deformation resistance of the main beam 11.

[0039] In another embodiment, the main beam 11 includes stiffening slabs 111, beam plates 113, and vertical plates 112. The stiffening slabs 111 and beam plates 113 form a U-shaped cavity. The vertical plates 112 are disposed within the U-shaped cavity and welded to the stiffening slabs 111. Multiple vertical plates 112 are arranged along the extension direction of the main beam 11. Compared to the above embodiment, in this embodiment, the stiffening slabs 111 are bent to form an L-shaped structure, and the beam plates 113 are plate-shaped structures. The two are welded together to form a U-shaped cavity. The vertical plates 112 are disposed within the U-shaped cavity and welded to the stiffening slabs 111 and beam plates 113. The arrangement of the vertical plates 112 is described in the above embodiment.

[0040] In one embodiment, connecting guard plates are respectively provided between the first platform 1 and the second platform 2, and between the second platform 2 and the third platform 3. The connecting guard plates are provided on the main beam 11 and welded to the main beam 11; and / or, connecting composite plates are respectively provided between the first platform 1 and the second platform 2, and between the second platform 2 and the third platform 3. The connecting composite plates are provided on the secondary beams 12, and multiple secondary beams 12 are welded to the connecting composite plates.

[0041] Specifically, the connecting guard plate is a plate-like structure, which can be made of steel plate, and its shape is adapted to the outer contour of the main beam 11, such as a rectangular plate, a U-shaped plate, or an L-shaped plate. The connecting guard plate covers the butt weld area of ​​the main beams 11 of the two adjacent platforms, with its two ends overlapping the main beams 11 of the two adjacent platforms and welded to the main beams 11 on both sides. The connecting guard plate can be set on the outside of the main beams 11 to enhance the connection strength and rigidity of the main beams 11 at the butt joint, avoid stress concentration or cracking at the butt weld under bending moment and torque, and ensure reliable load transfer between adjacent platforms.

[0042] As an alternative implementation, a connecting plate is provided at the sub-beams 12, and multiple sub-beams 12 are welded to the connecting plate. Specifically, the connecting plate is a plate-like structure, spanning multiple sub-beams 12 in its width direction, extending laterally along the platform (i.e., the arrangement direction of the sub-beams 12), and located at the joint area of ​​the sub-beams 12 of adjacent platforms. Both sides of the connecting plate are welded to the sub-beams 12 of the two adjacent platforms, that is, welded and fixed to the end faces of the sub-beams 12, and welded and fixed to each sub-beam 12. By providing the connecting plate, multiple sub-beams 12 are connected into a whole at the joint, increasing the stress-bearing area at the joint of the sub-beams 12, improving the overall stiffness and load-bearing capacity of the joint of the sub-beams 12 of adjacent platforms, and preventing local deformation.

[0043] In one embodiment, the second platform 2 is provided with connecting boxes 21 on both sides. The connecting boxes 21 include two side plates 211 and a bottom plate 212 connecting the two side plates 211. The three form a U-shaped groove. One side plate 211 is provided with a grid 213, which is located in the U-shaped groove. The two side plates 211 are respectively located on the two side walls of the main beam 11. The side plates 211 are connected to the gantry frame 4.

[0044] The connecting box 21 is located on both sides of the second platform 2 and is arranged symmetrically. In the specific implementation process, the connecting box 21 is used to connect the gantry 4. It can be understood that each main beam 11 is provided with two connecting boxes 21.

[0045] Specifically, two side plates 211 are arranged opposite each other, and a bottom plate 212 is connected to the same end of the two side plates 211, thus forming a U-shaped groove structure with an opening facing the main beam 11 of the second platform 2. Both the side plates 211 and the bottom plate 212 can be made of steel plates and fixedly connected by welding. One of the side plates 211 is provided with a grid 213, which is located inside the U-shaped groove. The grid 213 can be made of multiple crisscrossing steel plates welded together, and its edges are welded to the side plate 211. The grid 213 is located inside the U-shaped groove, which can strengthen the side plate 211, improve the local stiffness of the side plate 211, prevent the side plate 211 from buckling under stress, and at the same time, the hollow structure of the grid 213 helps to reduce weight.

[0046] Two side plates 211 are respectively located on the two side walls of the main beam 11. That is, the connecting box 21 spans the main beam 11 of the second platform 2, and the two side plates 211 are respectively attached to the outer sides of the two side walls of the main beam 11 and are fixedly connected to the main beam 11 by welding or bolting. The bottom plate 212 is located below the main beam 11 and is in contact with and attached to the main beam 11.

[0047] The gantry frame 4 serves as a support or drive connection component for the tilting platform. The columns or connecting plates of the gantry frame 4 can be bolted to the side plate 211. The gantry frame 4 can be installed on both sides of the second platform 2 to install the tilting drive mechanism or serve as a support hinge point for the tilting platform, thereby enabling the platform to tilt.

[0048] In one embodiment, the third platform 3 is provided with a wheel stop assembly 5, which includes a front wheel stop and a rear wheel stop, with two front wheel stop and two rear wheel stop provided along the width direction of the third platform 3.

[0049] Specifically, the front row wheel chocks are provided in two units and are spaced apart along the width direction of the third platform 3. The rear row wheel chocks also include two individual wheel chocks, spaced apart along the width direction of the third platform 3. The front and rear wheel chocks are arranged spaced apart along the length direction of the third platform 3, thus forming two sets of wheel chock structures, two in each set.

[0050] The wheel stop can be made of welded steel plates into a block structure, or it can be made of shaped steel or cast steel parts, and is hinged to the third platform 3. When it flips open, it acts as a barrier, and when it is closed to the panel, it does not obstruct the vehicle from driving on the panel. The height, length, and overall dimensions of the wheel stop can be set according to the tire diameter, wheel track, and flipping angle of the vehicle or equipment to be flipped.

[0051] By setting the aforementioned wheel stop assembly 5, when the tilting platform carries a vehicle or equipment and is in the process of tilting, the front wheel stop and the rear wheel stop can effectively limit the wheels respectively, preventing the vehicle or equipment from sliding longitudinally or shifting laterally along the platform surface, avoiding the risk of overturning due to changes in the center of gravity, thereby significantly improving the safety and reliability of the tilting operation.

[0052] Furthermore, the third platform 3 is provided with two coaxially arranged main shafts 31, which extend out of the two side walls of the third platform 3 respectively, and the main shafts 31 are located at the end of the third platform 3 near the wheel stop.

[0053] Specifically, the main shaft 31 can be a solid or hollow shaft, and its extended end can be used to connect with an external bearing housing, drive unit, or support frame to form a rotational support and drive connection point for the tilting platform. The main shaft 31 is located at the end of the third platform 3 near the wheel stop. That is, the main shaft 31 is located at the end near the wheel stop assembly 5, and the specific position can be set according to the tilting fulcrum and center of gravity position. The main shaft 31 is fixedly connected to the main beam 11 of the third platform 3, but can be detachably connected by means of flanges, keys, etc., to ensure reliable connection between the main shaft 31 and the beam unit of the third platform 3, and to effectively transfer the torque and bending moment on the tilting platform to the external support.

[0054] refer to Figures 8 to 9 The present invention also proposes an automatic welding system for a flip-up platform. This automatic welding system is applied to a flip-up platform. The specific structure of the flip-up platform is as described in the above embodiments. Since this automatic welding system for a flip-up platform adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here. The welding system includes a bending machine 6, a conveyor roller conveyor 7, a stacking device 8, and a welding production line. Specifically, the bending machine 6 is equipped with a mold assembly, a storage platform 61, and an electromagnetic chuck feeder 62. The storage platform 61 is used to place raw materials, and the mold assembly bends the raw materials to form the secondary beams 12 of the flip-up platform. The conveyor roller conveyor 7 is located at the discharge end of the bending machine 6 and receives and conveys the bent secondary beams 12. The conveyor roller conveyor 7 is also used to convey the main beams 11. The stacking device 8 is located on one side of the conveyor roller conveyor 7 and is used to flip the secondary beams 12 so that the open side of the secondary beams 12 faces downwards, and stacks multiple secondary beams 12 into a group and conveys them through the conveyor roller conveyor 7. The welding production line includes a welding robot 103, a welding platform 101, and a three-axis truss device 102. The welding platform 101 is used to place the panel of the flip-up platform, the three-axis truss device 102 grabs the secondary beams 12 from the conveyor roller conveyor 7 to the panel, and the welding robot 103 is used for the welding process.

[0055] The bending machine 6 can be a CNC bending machine 6 or a hydraulic bending machine 6. In this embodiment, the die assembly includes an upper die 64 and a lower die 63, and the upper die 64 and the lower die 63 cooperate to extrude and bend the flat steel plate into a U-shaped secondary beam 12. The discharge end of the bending machine 6 is connected to the inlet end of the conveyor roller 7. After bending, the secondary beam 12 is directly slid from the discharge end of the bending machine 6 or transferred to the conveyor roller 7 through a pushing device. It should be noted that the main beam 11 can also be bent and formed by the bending machine 6, or it can be provided by other feeding equipment and placed on the conveyor roller 7. This embodiment does not limit this.

[0056] The conveyor roller conveyor 7 includes a frame, multiple rollers, and a drive motor. The rollers are rotatably mounted on the frame, and the drive motor drives the rollers to rotate via a chain or belt, thereby moving the secondary beam 12 or main beam 11 placed on the rollers along the conveying direction. The conveying direction of the conveyor roller conveyor 7 is consistent with the discharge direction of the bending machine 6, facilitating the smooth entry of the bent secondary beam 12 into the conveyor roller conveyor 7. The length of the conveyor roller conveyor 7 can be set according to the location and layout of the welding production line, with its discharge end close to the welding production line so that the three-axis truss device 102 can grab the secondary beam 12 or main beam 11 from the conveyor roller conveyor 7.

[0057] The stacking device 8 is located on one side of the conveyor roller conveyor 7, between the bending machine 6 and the welding production line. The stacking device 8 flips the sub-beam 12 so that its open side faces downward. Specifically, the stacking device 8 may include grippers, a rotary cylinder, or a rotary motor. The grippers hold the side walls or bottom wall of the sub-beam 12, and the rotary cylinder drives the grippers to rotate around a horizontal axis to flip the sub-beam 12. The stacking device 8 is also used to stack multiple flipped sub-beams 12 into a group. The stacked sub-beam group can continue to be conveyed by the conveyor roller conveyor 7 to a position close to the welding production line, waiting for the three-axis truss device 102 to grab it.

[0058] The welding platform 101 in the welding production line is used to place the panel of the flip-up platform. The welding platform 101 may include a support frame and a positioning component. The panel is placed horizontally on the welding platform 101 and positioned and fixed by the positioning component to ensure the positional accuracy of the panel. A three-axis truss device 102 is arranged across the welding platform 101 and above the discharge end of the conveyor roller 7. It includes an X-axis moving beam, a Y-axis moving beam, and a Z-axis lifting mechanism, as well as a gripping mechanism mounted on the Z-axis lifting mechanism. The gripping mechanism may be a pneumatic gripper, an electromagnetic chuck, or a vacuum chuck, etc., used to grip the secondary beam 12 or the main beam 11 on the conveyor roller 7. The three-axis truss device 102, through the movement of the X-axis, Y-axis, and Z-axis, transfers the gripped secondary beam 12 from the conveyor roller 7 to above the panel on the welding platform 101, and places the secondary beam 12 on the panel according to a predetermined position, so that the open side of the secondary beam 12 faces the panel. In this embodiment, the stacking device 8 has flipped the sub-beam 12 so that the opening side faces downward. Therefore, when the sub-beam 12 is placed on the panel, its opening side faces the panel and the end of the side wall contacts the panel surface, which facilitates the welding robot 103 to perform fillet weld welding.

[0059] The welding robot 103 is installed on one or both sides of the welding platform 101, and can be a six-axis articulated welding robot 103 or a gantry welding robot 103. The welding robot 103 is used to weld the connection parts between the panel, the main beam 11 and the secondary beam 12 placed on the welding platform 101.

[0060] In this embodiment, when the automatic welding system of the flip-plate platform is welding the sub-beam 12 to the panel, the raw material plate of the sub-beam 12 is placed on the storage platform 61 of the bending machine 6 by the lifting equipment 9. The electromagnetic chuck loading machine 62 of the lifting equipment 9 adopts an electro-permanent magnet structure, and its magnetic chuck assembly 621 conveys the raw material plate to the front of the bending machine 6 by magnetic force. The front X-axis pusher 65 pushes the raw material plate to the CNC bending machine 6 through the front and rear support frames 66. The CNC bending machine 6 uses a front positioning method to position the pushing position of the raw material plate. After the raw material plate is pushed to the first bending line, the CNC bending machine 6 starts working: the upper die 64 presses down on the raw material plate, and the raw material plate forms a semi-U-shaped plate under the downward pressure of the upper die 64 and the extrusion of the lower die 63; then, the front X-axis pusher 65 pushes the semi-U-shaped plate forward to the second bending line, and then the upper die 64 presses down again, and the raw material plate is finally formed into the sub-beam 12 under the downward pressure of the upper die 64 and the extrusion of the lower die 63.

[0061] After production is completed, the side discharge machine 67 transports the material to the robot flipping and stacking device 8 via roller conveyor; the sub-beam 12 after side discharge is grabbed and flipped by the stacking robot so that its opening faces down, and stacked in stacks of five in the height direction; after stacking is completed, it is transported to the welding production station 10 via roller conveyor.

[0062] At welding production station 10, the panel is manually hoisted and placed onto welding platform 101 using an automated hoisting system. Welding production station 10 then begins operation. The conveyor line automatically transports the sub-beam 12 to the gripping position of the three-axis truss device 102; the three-axis truss device 102 grips the sub-beam 12 and places it at the designated position; this gripping and placement process is repeated 5 times (a total of 6 sub-beams 12 are gripped); subsequently, the truss drives the spot welding robot to perform spot welding operations; after spot welding is completed, the 1st, 3rd, and 5th sub-beams 12 are automatically welded, as are the 2nd, 4th, and 6th sub-beams 12; welding is then complete.

[0063] The above description is merely an exemplary embodiment of the present invention and does not limit the scope of protection of the present invention. Any equivalent structural transformations made based on the inventive concept of the present invention and the contents of the specification and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present invention.

Claims

1. A flip-up platform, characterized in that, include: The first platform, the second platform, and the third platform are welded together in sequence. Each of the three platforms is provided with a beam unit, and the beam unit makes the cross-sections of the first platform, the second platform, and the third platform U-shaped. The beam unit includes a panel, main beams and secondary beams that are welded together. The main beams are respectively provided on opposite sides of the panel. Multiple secondary beams are provided. The main beams and secondary beams are located on the same side of the panel. The multiple secondary beams are located between two main beams.

2. The flip-up platform as described in claim 1, characterized in that, The beam unit also includes a crossbeam, which spans and connects multiple of the secondary beams, and each end of the crossbeam is connected to one of the two main beams.

3. The flip-up platform as described in claim 2, characterized in that, The main beam has multiple crossbeams, which are spaced apart along the extension direction of the main beam; and / or, The cross-section of the beam is H-shaped.

4. The flip-up platform as described in claim 1, characterized in that, The main beam has a U-shaped cross-section; and / or, The cross-section of the secondary beam is U-shaped.

5. The flip-up platform as described in claim 1, characterized in that, The main beam includes stiffening plates and vertical plates. The stiffening plates form a U-shaped cavity, and the vertical plates are disposed in the U-shaped cavity and welded to the stiffening plates. Multiple vertical plates are arranged along the extension direction of the main beam. Alternatively, the main beam includes stiffening plates, beam plates, and vertical plates. The stiffening plates and beam plates form a U-shaped cavity. The vertical plates are disposed within the U-shaped cavity and welded to the stiffening plates. Multiple vertical plates are provided along the extension direction of the main beam.

6. The flip-up platform as described in claim 1, characterized in that, Connecting guard plates are respectively provided between the first platform and the second platform, and between the second platform and the third platform. These connecting guard plates are located on the main beam and welded to it; and / or, A connecting plate is provided between the first platform and the second platform, and between the second platform and the third platform. The connecting plate is located on the sub-beam, and multiple sub-beams are welded to the connecting plate.

7. The flip-up platform as described in claim 1, characterized in that, The second platform has connecting boxes on both sides. Each connecting box includes two side plates and a bottom plate connecting the two side plates, which together form a U-shaped groove. One of the side plates is provided with a grid, which is located in the U-shaped groove. The two side plates are respectively located on the two side walls of the main beam, and the side plates are connected to a gantry frame.

8. The flip-up platform as described in claim 1, characterized in that, The third platform is provided with a wheel stop assembly, which includes a front wheel stop and a rear wheel stop, with two front wheel stop and two rear wheel stop respectively along the width direction of the third platform.

9. The flip-up platform as described in claim 8, characterized in that, The third platform is provided with two coaxially arranged main shafts, which extend from the two side walls of the third platform respectively. The main shafts are located at the end of the third platform near the wheel stop.

10. An automatic welding system for a flip-plate platform, characterized in that, For a flip-up platform as described in any one of claims 1-9, wherein the welding system comprises: The bending machine is equipped with a mold assembly, a material storage platform and an electromagnetic chuck feeder. The material storage platform is used to place raw materials, and the mold assembly bends the raw materials to form the sub-beam of the flip-plate platform. A conveyor roller conveyor is located at the discharge end of the bending machine and is used to convey the bent secondary beam. The conveyor roller conveyor is also used to convey the main beam. A stacking device is located on one side of the conveyor roller conveyor and is used to flip the sub-beam so that the open side of the sub-beam faces downward, and to stack multiple sub-beams into a group and transport them through the conveyor roller conveyor. The welding production line includes a welding robot, a welding platform, and a three-axis truss device. The welding platform is used to place the panel of the flip-up platform. The three-axis truss device picks up the sub-beam from the conveyor roller conveyor and moves it to the panel. The welding robot is used for the welding process.

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