Automatic forming device for longitudinal beam inner reinforcing plate assembly

Abstract

The present application relates to the technical field of longitudinal beam inner reinforcing plate manufacturing, and discloses an automatic forming device for longitudinal beam inner reinforcing plate assembly, which comprises a welding frame, a handheld laser welding machine is slidably connected to the welding frame along the length direction of the welding frame, a movable welding seat is placed in the welding frame, a welding combined positioning mechanism for positioning the longitudinal beam reinforcing plate is detachably connected to the welding seat, the position of the welding combined positioning mechanism is opposite to the position of the handheld laser welding machine, and the handheld laser welding machine can weld the longitudinal beam reinforcing plate on the welding combined positioning mechanism along the direction of the welding frame. The present application can reduce the production efficiency of the longitudinal beam inner plate reinforcing assembly.

Description

Technical Field

[0001] This invention relates to the technical field of manufacturing inner reinforcing plates for longitudinal beams, and specifically to an automated forming device for an inner reinforcing plate assembly for longitudinal beams. Background Technology

[0002] Vehicle safety performance is a crucial indicator of modern automotive quality. Maximizing occupant safety and minimizing vehicle damage in the event of a collision is a primary goal for automakers. During a collision, the longitudinal beams of the vehicle act as the most important energy-absorbing components, and their energy absorption effect directly impacts the safety of the passenger compartment.

[0003] The design principle of longitudinal beams is to absorb as much energy as possible at the front and minimize deformation at the rear. Therefore, the stiffness at the front should be lower than that at the rear. This is to ensure that the peak acceleration of the vehicle during a collision is as small as possible while also ensuring the integrity of the passenger compartment.

[0004] Existing longitudinal beams are generally divided into two types: laser-welded longitudinal beam structures and non-laser-welded longitudinal beam structures. Our company produces non-laser-welded longitudinal beam structures because they are less expensive and meet our production specifications. This type of non-laser-welded longitudinal beam structure includes an outer longitudinal beam reinforcement assembly and an inner longitudinal beam reinforcement assembly. The inner longitudinal beam reinforcement assembly consists of an inner longitudinal beam plate and a reinforcing plate. During the production of the inner longitudinal beam reinforcement assembly, the inner longitudinal beam plate and the reinforcing plate are spot-welded manually to form a single structure. However, this method greatly reduces the production efficiency of the inner longitudinal beam reinforcement assembly and also increases the risk of worker injury during the welding process. Summary of the Invention

[0005] The present invention aims to provide an automated forming device for the inner reinforcing plate assembly of longitudinal beams, which can reduce the production efficiency of the inner reinforcing plate assembly of longitudinal beams.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: 1) An automated forming device for an inner reinforcing plate assembly of a longitudinal beam includes a welding frame, on which a handheld laser welding machine is slidably connected along its length. A movable welding seat is placed inside the welding frame, and a welding assembly positioning mechanism for positioning the longitudinal beam reinforcing plate is detachably connected to the welding seat. The position of the welding assembly positioning mechanism is directly opposite the position of the handheld laser welding machine, and the handheld laser welding machine is capable of welding the longitudinal beam reinforcing plate on the welding assembly positioning mechanism along the direction of the welding frame.

[0007] The welding frame designed in this invention forms the area for welding the inner plate of the longitudinal beam and the reinforcing plate. A handheld laser welding machine that is slidably connected to the welding frame along its length enables mobile welding of the inner plate of the longitudinal beam and the reinforcing plate. The designed welding seat is movable into the welding frame. The movement can be carried out by means of transport or by rollers. Before the welding seat is moved into the welding frame, the welding assembly positioning mechanism is first installed on the welding seat, and then the welding seat is moved into the welding frame so that the position of the welding seat corresponds to the position of the handheld laser welding machine.

[0008] The inner plate of the longitudinal beam and the reinforcing plate are placed in the welding assembly positioning mechanism. The welding assembly positioning mechanism fixes the position of the inner plate of the longitudinal beam and the reinforcing plate and exposes the welding points of the inner plate of the longitudinal beam and the reinforcing plate. The handheld laser welding machine is moved so that its position corresponds to the welding points of the inner plate of the longitudinal beam and the reinforcing plate. The handheld laser welding machine is used to weld the welding points on the inner plate of the longitudinal beam and the reinforcing plate to form the inner reinforcing plate assembly of the longitudinal beam.

[0009] 2) An automated forming device for an inner reinforcing plate assembly of a longitudinal beam as described in 1), wherein: The welded frame includes four supporting steel pipes extending in the vertical direction. The tops of each adjacent supporting steel pipe are connected by a vertical steel pipe, and the bottoms of each adjacent supporting steel pipe are connected by a connecting steel pipe. The axis of the connecting steel pipe is the same as the axis of the vertical steel pipe. There are two horizontal steel pipes between the ends of the two vertical steel pipes. The axis of the horizontal steel pipes is perpendicular to the axis of the vertical steel pipes. Each horizontal steel pipe is welded to the adjacent supporting steel pipe.

[0010] This invention uses four supporting steel pipes, two vertical steel pipes, and two connecting steel pipes to form a stable frame on both sides of the welded frame, and then uses four supporting steel pipes, two vertical steel pipes, and two horizontal steel pipes to form a stable frame on the top surface of the welded frame. Therefore, the welded frame formed by the supporting steel pipes, vertical steel pipes, connecting steel pipes, and horizontal steel pipes can support the handheld laser welding machine.

[0011] 3) An automated forming device for an inner reinforcing plate assembly of a longitudinal beam as described in 2), wherein: Connecting steel grooves are respectively opened on the inner sides of adjacent supporting steel pipes. The two ends of the vertical steel pipe are respectively embedded into the connecting steel grooves of the corresponding supporting steel pipes and welded. The two ends of the connecting steel pipe are respectively embedded into the connecting steel grooves of the corresponding supporting steel pipes and welded.

[0012] In this invention, connecting steel grooves are provided on the inner sides of the supporting steel pipes, penetrating through the supporting steel pipes. This allows the two ends of the vertical steel pipes to be embedded into the corresponding connecting steel grooves of the supporting steel pipes and welded together to form an integral structure. Simultaneously, the two ends of the connecting steel pipes are embedded into the corresponding connecting steel grooves of the supporting steel pipes and welded together to form an integral structure. Therefore, in this invention, the welded frame is stably connected to the vertical steel pipes and connecting steel pipes through the connecting steel grooves on the supporting steel pipes, thus improving the stability of the welded frame.

[0013] 4) An automated forming device for an inner reinforcing plate assembly of a longitudinal beam as described in 2), wherein: The inner sides of the two transverse steel pipes facing each other are respectively provided with slide rail grooves. Between the two transverse steel pipes is a movable rod that moves back and forth along the length of the welding frame. The axis of the movable rod is perpendicular to the axis of the transverse steel pipes. The two ends of the movable rod are respectively slidably connected in the slide rail grooves. A telescopic rod extending toward the welding assembly positioning mechanism is fixedly connected to the movable rod. The top of the telescopic rod is fixedly connected to the movable rod by a return spring. A handheld laser welding machine is connected to the bottom of the telescopic rod.

[0014] The slide rail groove designed in this invention is opened on the transverse steel pipe, so that the movable rod slidably connected to the slide rail groove can move back and forth along the length of the welding frame. In use, the operator can pull the handheld laser welding machine back and forth along the length of the welding frame, and make the two ends of the movable rod move along the length of the slide rail groove respectively, so that the handheld laser welding machine moves to the position of the welding assembly positioning mechanism. Then, the telescopic rod is pulled so that the handheld laser welding machine can extend or retract along the height direction, thereby facilitating the operator to weld the welding points of the inner plate of the longitudinal beam and the reinforcing plate by using the handheld laser welding machine.

[0015] 5) An automated forming device for an inner reinforcing plate assembly of a longitudinal beam as described in 1), wherein: The welding base includes a base plate set on the ground, on which two symmetrically arranged support plates are evenly distributed. A welding plate is welded to the top of all the support plates. The welding plate is detachably connected to the welding assembly positioning mechanism by bolts and nuts.

[0016] The present invention uses a welding seat formed by a base plate, two support plates and a welding plate. The two support plates are symmetrically arranged between the base plate and the welding plate to support the welding plate. At the same time, it is convenient for the operator to lift and move the welding seat through the space formed between the two support plates.

[0017] 6) An automated forming device for an inner reinforcing plate assembly of a longitudinal beam as described in 5), wherein: The welding assembly positioning mechanism includes a placement plate that is detachably connected to the welding plate via bolts and nuts. The placement plate is located in the middle of the welding plate and has two sets of symmetrically arranged flip-plate structures on both sides of the welding plate. The upper surface of the placement plate has two symmetrically arranged fixing platforms. The lower surface of the fixing platforms is welded to the placement plate. On the upper surface of each fixing platform, near the flip-plate structure, there are two symmetrically arranged top columns. The two top columns together support the position of the welding point of the longitudinal beam reinforcing plate and, together with the flip-plate structure, clamp and position the welding point of the longitudinal beam reinforcing plate.

[0018] This invention increases the height of the welding plate by placing the placement plate in the middle of the welding plate. At the same time, the detachable connection between the placement plate and the welding plate makes it easy for the operator to change the position of the fixing platform and the top column of the placement plate, so as to adapt to the support and fixation of the welding points of different types of longitudinal beam reinforcing plates.

[0019] The symmetrically arranged flap structures on both sides of the welding plate cooperate with the top columns on the fixed platform. The two top columns together support the position of the welding point of the longitudinal beam reinforcing plate, and the flap structures clamp and position the welding point of the longitudinal beam reinforcing plate.

[0020] 7) An automated forming device for an inner reinforcing plate assembly of a longitudinal beam as described in 6), wherein: The flip-plate structure includes a telescopic pump mounted on a welding plate. The telescopic pump has an upwardly extending telescopic rod. A flipping arm is rotatably connected to the end of the telescopic rod. The end of the flipping arm is rotatably connected to the top column. The flipping arm has a limiting member for positioning the longitudinal beam reinforcing plate. The limiting member cooperates with the top column to position the longitudinal beam reinforcing plate.

[0021] The telescopic pump designed in this invention drives the tilting arm to move up and down. During the up and down movement of the tilting arm, the position where the tilting arm is rotated and connected to the top column causes the tilting arm to tilt. The limiting component on the tilting arm cooperates with the top pearl to position the longitudinal beam reinforcing plate, ensuring the stability of the welding.

[0022] 8) An automated forming device for an inner reinforcing plate assembly of a longitudinal beam as described in 7), wherein: The limiting component includes a limiting block fixed to the lower surface of the flipping arm. The limiting block is located close to the telescopic pump and is hinged to an inclined strip on the side of the top column. The end of the flipping arm away from the telescopic pump is provided with a downwardly extending flip cover plate. After flipping, the flip cover plate can fit against the side of the longitudinal beam reinforcing plate.

[0023] The limiting block designed in this invention is located close to the telescopic pump and is hinged to the inclined strip set on the side of the top column. This allows the limiting block to guide the flipping action, making it easy for the flipping arm to flip up and down under the drive of the telescopic pump. After flipping, the flipping arm uses a flip cover plate to fit the side of the longitudinal beam reinforcing plate, maintaining the stability of the inner plate or reinforcing plate of the longitudinal beam. This allows the handheld laser welding machine to weld the welding points on the inner plate and reinforcing plate of the longitudinal beam.

[0024] 9) An automated forming device for an inner reinforcing plate assembly of a longitudinal beam as described in 8), wherein: A limiting protrusion is provided between the flip cover and the limiting block. The limiting protrusion is used to position and fit against the longitudinal beam reinforcing plate. The limiting protrusion is fixed to the lower surface of the flip arm. A reinforcing block is provided on the upper surface of the flip arm. The position of the reinforcing block corresponds to the position of the limiting protrusion.

[0025] This invention uses limiting protrusions to fix the positions of the inner plate of the longitudinal beam and the reinforcing plate, thus ensuring the stability of their positioning. At the same time, the designed reinforcing block strengthens the entire flipping arm and applies a certain downward pressure to maintain the stability of the positioning of the inner plate of the longitudinal beam and the reinforcing plate. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of an automated forming device for an inner reinforcing plate assembly of a longitudinal beam according to the present invention; Figure 2 This is a schematic diagram of the welding assembly positioning mechanism in an automated forming device for an inner reinforcing plate assembly of a longitudinal beam according to the present invention. Detailed Implementation

[0027] The following detailed description illustrates the specific implementation method: The reference numerals in the accompanying drawings include: 1. Supporting steel pipe; 2. Vertical steel pipe; 3. Horizontal steel pipe; 4. Slide rail; 5. Moving rod; 6. Telescopic rod; 7. Welding end; 8. Support plate; 9. Welding plate; 10. Base plate; 11. Connecting steel pipe; 12. Connecting steel channel; 13. Placement plate; 14. Fixed platform; 15. Telescopic pump; 16. Telescopic rod; 17. Rotating sleeve; 18. Limiting block; 19. Top column; 20. Limiting protrusion; 21. Flip cover plate; 22. Welding area; 23. Flipping arm; 24. Reinforcing block.

[0028] See the example. Figure 1 and Figure 2As shown, this embodiment of an automated forming device for an inner reinforcing plate assembly of a longitudinal beam includes a welding frame, a handheld laser welding machine slidably connected to the welding frame along its length, a movable welding seat placed inside the welding frame, and a welding assembly positioning mechanism for positioning the longitudinal beam reinforcing plate detachably connected to the welding seat. The position of the welding assembly positioning mechanism is directly opposite the position of the handheld laser welding machine, and the handheld laser welding machine can weld the longitudinal beam reinforcing plate on the welding assembly positioning mechanism along the direction of the welding frame.

[0029] See Figure 1 In this embodiment, the welded frame includes four supporting steel pipes 1 extending in the height direction. The tops of each adjacent supporting steel pipe 1 are connected by vertical steel pipes 2, and the bottoms of each adjacent supporting steel pipe 1 are connected by connecting steel pipes 11. The axis of the connecting steel pipe 11 is the same as the axis of the vertical steel pipe 2. There are two transverse steel pipes 3 between the ends of the two vertical steel pipes 2. The axis of the transverse steel pipes 3 is perpendicular to the axis of the vertical steel pipes 2. Each transverse steel pipe 3 is welded to the adjacent supporting steel pipe 1.

[0030] In this embodiment, four supporting steel pipes 1, two vertical steel pipes 2, and two connecting steel pipes 11 are used to form a stable frame on both sides of the welded frame. Then, four supporting steel pipes 1, two vertical steel pipes 2, and two horizontal steel pipes 3 are used to form a stable frame on the top surface of the welded frame. Therefore, the welded frame formed by the supporting steel pipes 1, vertical steel pipes 2, connecting steel pipes 11, and horizontal steel pipes 3 can support the handheld laser welding machine.

[0031] More specifically, in this embodiment, the inner sides of adjacent supporting steel pipes 1 are respectively provided with connecting steel grooves 12, the two ends of the vertical steel pipe 2 are respectively embedded into the connecting steel grooves 12 of the corresponding supporting steel pipe 1 and welded, and the two ends of the connecting steel pipe 11 are respectively embedded into the connecting steel grooves 12 of the corresponding supporting steel pipe 1 and welded.

[0032] In this embodiment, a connecting steel groove 12 is provided on the inner side of the supporting steel pipe 1, which passes through the supporting steel pipe 1. The two ends of the vertical steel pipe 2 are respectively embedded into the connecting steel groove 12 of the corresponding supporting steel pipe 1 and welded to form an integral structure. At the same time, the two ends of the connecting steel pipe 11 are respectively embedded into the connecting steel groove 12 of the corresponding supporting steel pipe 1 and welded to form an integral structure. Therefore, in this embodiment, the welding frame is stably connected to the vertical steel pipe 2 and the connecting steel pipe 11 through the connecting steel groove 12 on the supporting steel pipe 1, thereby improving the stability of the welding frame.

[0033] Meanwhile, in this embodiment, slide rail grooves are respectively provided on the inner sides of the two transverse steel pipes 3 facing each other. There is a moving rod 5 between the two transverse steel pipes 3 that moves back and forth along the length of the welding frame. The axis of the moving rod 5 is perpendicular to the axis of the transverse steel pipe 3. The two ends of the moving rod 5 are slidably connected in the slide rail groove. A telescopic rod 6 extending toward the welding assembly positioning mechanism is fixedly connected to the moving rod 5. The top of the telescopic rod 6 is fixedly connected to the moving rod 5 by a return spring. A handheld laser welding machine is connected to the bottom of the telescopic rod 6.

[0034] In this embodiment, the slide rail groove is designed to be opened on the transverse steel pipe 3 so that the movable rod 5, which is slidably connected to the slide rail groove, can move back and forth along the length of the welding frame. In use, the operator can pull the handheld laser welding machine back and forth along the length of the welding frame, and make the two ends of the movable rod 5 move along the length of the slide rail groove respectively, so that the handheld laser welding machine moves to the position of the welding assembly positioning mechanism. Then, the telescopic rod 6 is pulled so that the handheld laser welding machine can extend or retract along the height direction, thereby facilitating the operator to weld the welding points of the inner plate of the longitudinal beam and the reinforcing plate by using the handheld laser welding machine.

[0035] See Figure 2 As shown, in this embodiment, the welding base includes a base plate 10 set on the ground. Two symmetrically arranged support plates 8 are evenly distributed on the base plate 10. A welding plate 9 is welded to the top of all the support plates 8. The welding plate 9 is detachably connected to the welding assembly positioning mechanism by bolts and nuts.

[0036] This embodiment uses a welding seat formed by a base plate 10, two support plates 8 and a welding plate 9. The two support plates 8 are symmetrically arranged between the base plate 10 and the welding plate 9 to support the welding plate 9. At the same time, it is convenient for the operator to lift and move the welding seat through the space formed between the two support plates 8.

[0037] In this embodiment, the welding assembly positioning mechanism includes a placement plate 13 that is detachably connected to the welding plate 9 via bolts and nuts. The placement plate 13 is located in the middle of the welding plate 9 and has two sets of symmetrically arranged flip-plate structures on both sides of the welding plate 9. The upper surface of the placement plate 13 has two symmetrically arranged fixing platforms 14. The lower surface of the fixing platforms 14 is welded to the placement plate 13. On the upper surface of each fixing platform 14, near the flip-plate structure, there are two symmetrically arranged top columns 19. The two top columns 19 together support the position of the welding point of the longitudinal beam reinforcing plate and, together with the flip-plate structure, clamp and position the position of the welding point of the longitudinal beam reinforcing plate.

[0038] In this embodiment, the height of the welding plate 9 is increased by placing the placement plate 13 in the middle position of the welding plate 9. At the same time, the detachable connection between the placement plate 13 and the welding plate 9 makes it easy for the operator to change the position of the fixing platform 14 and the top column 19 of the placement plate 13, so as to adapt to the support and fixation of the welding points of different types of longitudinal beam reinforcing plates.

[0039] The symmetrically arranged flap structures on both sides of the welding plate 9 cooperate with the top columns 19 on the fixed platform 14. The two top columns 19 together support the position of the welding point of the longitudinal beam reinforcing plate, and cooperate with the flap structures to clamp and position the welding point of the longitudinal beam reinforcing plate.

[0040] In addition, in this embodiment, the flip-plate structure includes a telescopic pump 15 disposed on the welding plate 9. The telescopic pump 15 has an upwardly extending telescopic rod 6. The end of the telescopic rod 6 has a rotating sleeve 17 and is rotatably connected to the flipping arm 23. The end of the flipping arm 23 is rotatably connected to the top column 19. The flipping arm 23 has a limiting member for positioning the longitudinal beam reinforcing plate. The limiting member cooperates with the top column 19 to position the longitudinal beam reinforcing plate.

[0041] In this embodiment, the telescopic pump 15 drives the flipping arm 23 to move up and down. During the up and down movement of the flipping arm 23, the position where the flipping arm 23 is rotatably connected to the top column 19 causes the flipping arm 23 to flip. The limiting part on the flipping arm 23 cooperates with the top pearl to position the longitudinal beam reinforcing plate, ensuring the stability of the welding.

[0042] Meanwhile, the limiting component includes a limiting block 18 fixed to the lower surface of the flipping arm 23. The limiting block 18 is located close to the telescopic pump 15 and is hinged to the inclined strip provided on the side of the top column 19. The end of the flipping arm 23 away from the telescopic pump 15 is provided with a downwardly extending flip cover plate 21. After flipping, the flip cover plate 21 can fit against the side of the longitudinal beam reinforcing plate.

[0043] In this embodiment, the limiting block 18 is positioned close to the telescopic pump 15 and is hinged to the inclined strip on the side of the top column 19. This allows the limiting block 18 to guide the flipping action, enabling the flipping arm 23 to flip up and down under the drive of the telescopic pump 15. After flipping, the flipping arm 23 uses the flip cover plate 21 to fit against the side of the longitudinal beam reinforcing plate, maintaining the stability of the inner plate or reinforcing plate of the longitudinal beam. This allows the handheld laser welding machine to weld the welding points on the inner plate and reinforcing plate of the longitudinal beam.

[0044] In addition, in this embodiment, a limiting protrusion 20 is provided between the flip cover plate 21 and the limiting block 18. The limiting protrusion 20 is used to position and fit against the longitudinal beam reinforcing plate. The limiting protrusion 20 is fixed on the lower surface of the flip arm 23. A reinforcing block 24 is provided on the upper surface of the flip arm 23. The position of the reinforcing block 24 corresponds to the position of the limiting protrusion 20.

[0045] In this embodiment, the position of the inner plate of the longitudinal beam and the reinforcing plate is fixed by the limiting protrusion 20, which can ensure the stability of the positioning of the inner plate of the longitudinal beam and the reinforcing plate. At the same time, the designed reinforcing block 24 strengthens the overall strength of the flipping arm 23 and applies a certain downward pressure to maintain the stability of the positioning of the inner plate of the longitudinal beam and the reinforcing plate.

[0046] The welding frame designed in this embodiment forms the area for welding the inner plate of the longitudinal beam and the reinforcing plate. A handheld laser welding machine that slides along the length of the welding frame enables mobile welding of the inner plate of the longitudinal beam and the reinforcing plate. The designed welding seat is movable into the welding frame. The movement can be carried out by means of transport or by rollers. Before the welding seat is moved into the welding frame, the welding assembly positioning mechanism is first installed on the welding seat, and then the welding seat is moved into the welding frame so that the position of the welding seat corresponds to the position of the handheld laser welding machine.

[0047] The inner plate of the longitudinal beam and the reinforcing plate are placed in the welding assembly positioning mechanism. The welding assembly positioning mechanism fixes the position of the inner plate of the longitudinal beam and the reinforcing plate and exposes the welding points of the inner plate of the longitudinal beam and the reinforcing plate. The handheld laser welding machine is moved so that its position corresponds to the welding points of the inner plate of the longitudinal beam and the reinforcing plate. The handheld laser welding machine is used to weld the welding points on the inner plate of the longitudinal beam and the reinforcing plate to form the inner reinforcing plate assembly of the longitudinal beam.

[0048] The above are merely embodiments of this solution. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this solution. These modifications and improvements should also be considered within the scope of protection of this solution, and will not affect the effectiveness of the implementation of this solution or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An automated forming device for an inner reinforcing plate assembly of a longitudinal beam, characterized in that, The device includes a welding frame, on which a handheld laser welding machine is slidably connected along its length. A movable welding seat is placed inside the welding frame, and a welding assembly positioning mechanism for positioning the longitudinal beam reinforcing plate is detachably connected to the welding seat. The welding assembly positioning mechanism is positioned directly opposite the handheld laser welding machine, and the handheld laser welding machine can weld the longitudinal beam reinforcing plate on the welding assembly positioning mechanism along the direction of the welding frame.

2. The automated forming device for the inner reinforcing plate assembly of a longitudinal beam according to claim 1, characterized in that: The welded frame includes four supporting steel pipes extending in the vertical direction. The tops of each adjacent supporting steel pipe are connected by a vertical steel pipe, and the bottoms of each adjacent supporting steel pipe are connected by a connecting steel pipe. The axis of the connecting steel pipe is the same as the axis of the vertical steel pipe. There are two horizontal steel pipes between the ends of the two vertical steel pipes. The axis of the horizontal steel pipes is perpendicular to the axis of the vertical steel pipes. Each horizontal steel pipe is welded to the adjacent supporting steel pipe.

3. The automated forming device for the inner reinforcing plate assembly of a longitudinal beam according to claim 2, characterized in that: Connecting steel grooves are respectively opened on the inner sides of adjacent supporting steel pipes. The two ends of the vertical steel pipe are respectively embedded into the connecting steel grooves of the corresponding supporting steel pipes and welded. The two ends of the connecting steel pipe are respectively embedded into the connecting steel grooves of the corresponding supporting steel pipes and welded.

4. The automated forming device for the inner reinforcing plate assembly of a longitudinal beam according to claim 2, characterized in that: The inner sides of the two transverse steel pipes facing each other are respectively provided with slide rail grooves. Between the two transverse steel pipes is a movable rod that moves back and forth along the length of the welding frame. The axis of the movable rod is perpendicular to the axis of the transverse steel pipes. The two ends of the movable rod are respectively slidably connected in the slide rail grooves. A telescopic rod extending toward the welding assembly positioning mechanism is fixedly connected to the movable rod. The top of the telescopic rod is fixedly connected to the movable rod by a return spring. A handheld laser welding machine is connected to the bottom of the telescopic rod.

5. The automated forming device for the inner reinforcing plate assembly of a longitudinal beam according to claim 1, characterized in that: The welding base includes a base plate set on the ground, on which two symmetrically arranged support plates are evenly distributed. A welding plate is welded to the top of all the support plates. The welding plate is detachably connected to the welding assembly positioning mechanism by bolts and nuts.

6. The automated forming device for the inner reinforcing plate assembly of a longitudinal beam according to claim 5, characterized in that: The welding assembly positioning mechanism includes a placement plate that is detachably connected to the welding plate via bolts and nuts. The placement plate is located in the middle of the welding plate and has two sets of symmetrically arranged flip-plate structures on both sides of the welding plate. The upper surface of the placement plate has two symmetrically arranged fixing platforms. The lower surface of the fixing platforms is welded to the placement plate. On the upper surface of each fixing platform, near the flip-plate structure, there are two symmetrically arranged top columns. The two top columns together support the position of the welding point of the longitudinal beam reinforcing plate and, together with the flip-plate structure, clamp and position the welding point of the longitudinal beam reinforcing plate.

7. The automated forming device for the inner reinforcing plate assembly of a longitudinal beam according to claim 6, characterized in that: The flip-plate structure includes a telescopic pump mounted on a welding plate. The telescopic pump has an upwardly extending telescopic rod. A flipping arm is rotatably connected to the end of the telescopic rod. The end of the flipping arm is rotatably connected to the top column. The flipping arm has a limiting member for positioning the longitudinal beam reinforcing plate. The limiting member cooperates with the top column to position the longitudinal beam reinforcing plate.

8. The automated forming device for the inner reinforcing plate assembly of a longitudinal beam according to claim 7, characterized in that: The limiting component includes a limiting block fixed to the lower surface of the flipping arm. The limiting block is located close to the telescopic pump and is hinged to an inclined strip on the side of the top column. The end of the flipping arm away from the telescopic pump is provided with a downwardly extending flip cover plate. After flipping, the flip cover plate can fit against the side of the longitudinal beam reinforcing plate.

9. The automated forming device for the inner reinforcing plate assembly of a longitudinal beam according to claim 8, characterized in that: A limiting protrusion is provided between the flip cover and the limiting block. The limiting protrusion is used to position and fit against the longitudinal beam reinforcing plate. The limiting protrusion is fixed to the lower surface of the flip arm. A reinforcing block is provided on the upper surface of the flip arm. The position of the reinforcing block corresponds to the position of the limiting protrusion.

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