A roof with a double skylight reinforcing ring structure and its manufacturing method

Abstract

This invention discloses a roof with a double sunroof reinforcing ring structure and its construction method, relating to the field of automotive roof manufacturing. The roof includes an outer roof panel, characterized in that: the inner side of the outer roof panel is provided with a front roof crossbeam assembly, a front sunroof reinforcing plate assembly, a rear sunroof reinforcing plate assembly, a middle roof crossbeam assembly, and a rear roof crossbeam assembly. This double sunroof reinforcing ring structure allows both front and rear passengers to enjoy a sunroof experience, and in emergencies, front and rear passengers can escape through the front and rear sunroofs respectively; the double sunroof reinforcing ring structure is directly connected to the side panel assembly through a reinforcing structure, improving the vehicle's load-bearing transmission function, thereby enhancing the overall stability of the vehicle; simultaneously, the several crossbeams provided on the outer roof panel improve the vehicle's torsional resistance.

Description

Technical Field

[0001] This invention relates to the field of automobile roof manufacturing, and in particular to a roof with a double sunroof reinforcing ring structure and its manufacturing method. Background Technology

[0002] As people's living standards improve, their demands for car comfort are also increasing. To alleviate the oppressive feeling caused by the hardtop of traditional cars, sunroofs are usually installed on the roof of cars, allowing sunlight to enter the car and improve the interior environment. At night, people can open the sunroof and look up at the stars. Of course, it can also serve as an escape route in emergencies.

[0003] Currently, existing car sunroof structures mainly include large sunroof structures, small sunroof structures, and panoramic sunroof glass roofs (which use roller blinds to block sunlight and have no sunroof structure). However, existing structures have certain problems:

[0004] 1. Large sunroof structure: The sunroof in this structure is mounted on a reinforcing plate. This technology uses a one-piece reinforcing plate, which increases the overall weight of the vehicle. In the event of a side impact, the sunroof reinforcing plate cannot effectively transmit force, resulting in more severe damage to the vehicle body.

[0005] 2. Small sunroof structure: In this structure, the sunroof is mounted on a reinforcing plate. Rear passengers have insufficient headroom and cannot fully appreciate the sunroof's effect. Furthermore, the sunroof reinforcing plate and roof are joined by welding and expanding adhesive, resulting in lower overall vehicle stability and poor torsional resistance.

[0006] 3. Panoramic Sunroof Glass Roof. This technology features a panoramic sunroof with a large glass roof. In an emergency, the roof cannot be opened, which may hinder passenger rescue or escape. Summary of the Invention

[0007] In view of the deficiencies in the existing technology, the technical problem solved by the present invention is: how to provide a sunroof experience for front and rear passengers while improving the overall stability and torsional resistance of the vehicle.

[0008] To achieve the above objectives, the present invention provides a method for manufacturing a roof with a double sunroof reinforcing ring structure, the method comprising the following steps:

[0009] Fabricate the front sunroof reinforcement plate assembly and the rear sunroof reinforcement plate assembly; connect the front roof crossbeam assembly, the front sunroof reinforcement plate assembly, the rear sunroof reinforcement plate assembly, the roof middle crossbeam assembly, and the roof rear crossbeam assembly to the roof outer panel to form the roof assembly; connect the front sunroof reinforcement plate assembly and the rear sunroof reinforcement plate assembly to the side panel assembly through a reinforcement structure; connect the roof assembly and the side panel assembly to form a welded body assembly.

[0010] Based on the above technical solution, the process of forming the roof assembly specifically includes the following steps: placing the front roof crossbeam assembly, the front sunroof reinforcement plate assembly, the rear sunroof reinforcement plate assembly, the middle roof crossbeam assembly, and the rear roof crossbeam assembly on the outer panel of the roof; and fixing them by welding and expanding adhesive to form the roof assembly.

[0011] The advantage of this design is that individual components are fixed to the outer panel of the roof by spot welding and expanding adhesive, so that the outer panel of the roof and the required components are integrated as a whole, which facilitates subsequent assembly work and improves the manufacturing efficiency of the car roof.

[0012] Based on the above technical solution, the process of connecting by strengthening the structure specifically includes the following steps: installing several bolts at the overlapping structure position of the front sunroof reinforcing ring; fixing the front sunroof reinforcing ring connecting plate assembly to the welded body assembly with several bolts; and fixing the rear sunroof reinforcing ring connecting plate assembly to the welded body assembly with several bolts.

[0013] The benefits of this design are that it strengthens the bond between the sunroof reinforcement ring and the side assembly, and allows the sunroof reinforcement ring to be directly connected to the side assembly, thereby improving the transmission of loads on the vehicle body and enhancing the overall stability of the car.

[0014] Based on the above technical solution, the process of forming the welded body assembly specifically includes the following steps: lifting the roof assembly and lowering it in a basically vertical direction, with the left and right sides of the roof assembly overlapping the left and right sides of the side panel assembly, and fixing it by welding to form the welded body assembly.

[0015] The advantage of this design is that the assembly method allows the cover assembly to be dropped from its designed position, with the side panel assembly placed underneath it in advance, facilitating alignment between the two and reducing assembly operation errors.

[0016] The present invention provides a structure with a double sunroof reinforcing ring, including an outer top cover panel, on the inner side of which are laid a front top crossbeam assembly, a front sunroof reinforcing plate assembly, a rear sunroof reinforcing plate assembly, a middle top cover crossbeam assembly, and a rear top cover crossbeam assembly.

[0017] The advantages of this design are: by laying front and rear sunroof reinforcement plates on the outer panel of the roof, the effect of installing two sunroofs on the car roof can be achieved; and by installing several crossbeams at the designed positions on the outer panel of the roof, the stability and torsional resistance of the car body can be improved.

[0018] Based on the above technical solution, both the front sunroof reinforcement plate assembly and the rear sunroof reinforcement plate assembly are made of high-strength steel structure. The front sunroof reinforcement plate assembly is fixed to the roof shell by welding, and the rear sunroof reinforcement plate assembly is fixed to the roof shell by welding with an expansion agent.

[0019] The advantage of this design is that, in order to meet the requirements of having a dual sunroof while ensuring the overall weight of the car, the sunroof reinforcing rings are made of high-strength steel with high rigidity and strength, and a connection method with high strength is used to connect the sunroof reinforcing rings to the roof.

[0020] Based on the above technical solution, a side panel assembly is fixed to the outer side of the top cover outer panel.

[0021] The advantage of this design is that, in order to enable the car to have a dual sunroof structure, the outer panel of the roof with a dual sunroof reinforcing ring structure is connected to the side panel assembly.

[0022] Based on the above technical solution, the front top crossbeam assembly is made of high-strength steel and is fixed to the outer panel of the top cover by welding. The two ends of the front top crossbeam assembly are fixed to the side panel assembly by welding. The middle crossbeam assembly of the top cover is made of high-strength steel and is fixed to the outer panel of the top cover by welding and expanding adhesive. The rear crossbeam assembly of the top cover is made of high-strength steel and is fixed to the outer panel of the top cover by welding and expanding adhesive. The two ends of the rear crossbeam assembly of the top cover are fixed to the side panel assembly by welding.

[0023] The advantage of this design is that, in order to enhance the torsional rigidity of the vehicle body, a crossbeam reinforcement plate made of the aforementioned materials is installed on the outer panel of the roof through design and research. It is connected to the outer panel of the roof and the side assembly respectively through a designed connection method.

[0024] Based on the above technical solution, the front sunroof reinforcement plate assembly and the side wall assembly are fixed by the front sunroof reinforcement ring overlapping structure.

[0025] The benefits of this design are that it enhances the stability between the sunroof reinforcement plate and the side assembly, and allows the sunroof reinforcement plate to be directly connected to the side assembly, improving the transmission of the body's load-bearing capacity and thus improving the overall stability of the vehicle body.

[0026] Based on the above technical solution, the left and right sides of the front sunroof reinforcement plate assembly and the side wall assembly are fixed by the front sunroof reinforcement ring connecting plate assembly; the left and right sides of the rear sunroof reinforcement plate assembly and the side wall assembly are fixed by the rear sunroof reinforcement ring connecting plate assembly.

[0027] The advantage of this design is that it further enhances the stability between the sunroof reinforcement plate and the side assembly. This fixing method avoids the problem of incomplete welding caused by the large number of parts in this area during the welding process.

[0028] Compared with the prior art, the advantages of the present invention are as follows:

[0029] This invention designs and manufactures a front sunroof reinforcement plate assembly and a rear sunroof reinforcement plate assembly. Through a design method, the double sunroof reinforcement ring structure is connected to the outer roof panel, and multiple crossbeams are also connected to the outer roof panel. The resulting roof assembly and side panel assembly are combined to form a welded body assembly.

[0030] Compared with existing technologies, this dual sunroof reinforcing ring structure can provide both front and rear passengers with a sunroof experience, and in case of an emergency, front and rear passengers can escape from the front and rear sunroofs respectively.

[0031] Furthermore, the dual sunroof reinforcing ring structure is directly connected to the side assembly through the reinforcing structure, which improves the transmission function of the vehicle body's load-bearing capacity, thereby enhancing the overall stability of the vehicle; at the same time, the several crossbeams set on the outer panel of the roof can improve the vehicle's torsional resistance. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the top cover structure with a double skylight reinforcing ring structure in an embodiment of the present invention;

[0033] Figure 2 for Figure 1 Partial structural diagram;

[0034] Figure 3 This is a flowchart of a method for manufacturing a top cover with a double skylight reinforcing ring structure, as described in an embodiment of the present invention.

[0035] In the diagram: 1-Front roof crossbeam assembly, 2-Front sunroof reinforcement plate assembly, 3-Rear sunroof reinforcement plate assembly, 4-Front sunroof reinforcement ring overlap structure, 5-Front sunroof reinforcement ring connecting plate assembly, 6-Rear sunroof reinforcement ring connecting plate assembly, 7-Roof center crossbeam assembly, 8-Roof rear crossbeam assembly, 9-Roof outer plate. Detailed Implementation

[0036] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0037] Example 1

[0038] The top cover with a double skylight reinforcing ring structure in this embodiment of the invention is shown in the image. Figure 1 As shown, the roof includes an outer panel 9, and the inner side of the outer panel 9 is sequentially covered with a front roof crossbeam assembly 1, a front sunroof reinforcement plate assembly 2, a rear sunroof reinforcement plate assembly 3, a roof middle crossbeam assembly 7, and a roof rear crossbeam assembly 8.

[0039] Therefore, it can be seen that the present invention achieves the effect of installing two sunroofs on the car roof by laying two sunroof reinforcement plates, one in the front and one in the rear, on the outer panel 9 of the roof; and then installing several crossbeams at the designed positions on the outer panel 9 of the roof to improve the stability and torsional resistance of the car body.

[0040] Preferably, the outer side of the top cover outer panel 9 is fixed to the side panel assembly by welding.

[0041] The advantage of this design is that, in order to enable the car to have a dual sunroof structure, the outer roof panel 9 with a dual sunroof reinforcing ring structure is connected to the side panel assembly.

[0042] Preferably, both the front sunroof reinforcement plate assembly 2 and the rear sunroof reinforcement plate assembly 3 are made of high-strength steel with a material thickness of 1.2mm. The front sunroof reinforcement plate assembly 2 is fixed to the roof shell by a combination of spot welding and hot welding, while the rear sunroof reinforcement plate assembly 3 is fixed to the roof shell by spot welding and expansion adhesive.

[0043] The advantage of this design is that, in order to meet the requirements of having a dual sunroof while ensuring the overall weight of the car, the sunroof reinforcing rings are made of high-strength steel with high rigidity and strength, and a connection method with high strength is used to connect the sunroof reinforcing rings to the roof.

[0044] Preferably, the front top crossbeam assembly 1 is made of high-strength steel with a material thickness of 0.8mm, and it is fixed to the outer plate of the top cover 9 by spot welding. The two ends of the front top crossbeam assembly 1 are overlapped with the side wall assembly by spot welding. The middle crossbeam assembly 7 of the top cover is made of high-strength steel with a material thickness of 0.6mm, and it is fixed to the outer plate of the top cover 9 by spot welding and expanding adhesive. The rear crossbeam assembly 8 of the top cover is made of high-strength steel with a material thickness of 0.8mm, and it is fixed to the outer plate of the top cover 9 by spot welding and expanding adhesive. The two ends of the rear crossbeam assembly 8 of the top cover are overlapped with the side wall assembly by spot welding.

[0045] The advantage of this design is that, in order to enhance the torsional rigidity of the vehicle body, a crossbeam reinforcement plate made of the aforementioned material is installed on the outer roof panel 9 through design and research. It is connected to the outer roof panel 9 and the side panel assembly respectively through a designed connection method.

[0046] Preferably, the front sunroof reinforcement plate assembly 2 and the side wall assembly are fixed together by the front sunroof reinforcement ring overlapping structure 4 and bolts.

[0047] The benefits of this design are that it enhances the stability between the sunroof reinforcement plate and the side assembly, and allows the sunroof reinforcement plate to be directly connected to the side assembly, improving the transmission of the body's load-bearing capacity and thus improving the overall stability of the vehicle body.

[0048] Preferred, see Figure 2 As shown, the left and right sides of the front sunroof reinforcement plate assembly 2 are fixed to the side wall assembly through the front sunroof reinforcement ring connecting plate assembly 5 and bolts; the left and right sides of the rear sunroof reinforcement plate assembly 3 are fixed to the side wall assembly through the rear sunroof reinforcement ring connecting plate assembly 6 and bolts.

[0049] The advantage of this design is that it further enhances the stability between the sunroof reinforcement plate and the side assembly. This fixing method avoids the problem of incomplete welding caused by the large number of parts in this area during the welding process.

[0050] See Figure 3 As shown, the manufacturing method of the top cover with a double skylight reinforcing ring structure in this embodiment of the invention includes the following steps:

[0051] S1: Fabricate the front sunroof reinforcement plate assembly 2 and the rear sunroof reinforcement plate assembly 3;

[0052] S2: Connect the front top crossbeam assembly 1, the front sunroof reinforcement plate assembly 2, the rear sunroof reinforcement plate assembly 3, the roof middle crossbeam assembly 7, and the roof rear crossbeam assembly 8 to the roof outer plate 9 respectively to form the roof assembly;

[0053] S3: Connect the front sunroof reinforcement plate assembly 2 and the rear sunroof reinforcement plate assembly 3 to the side wall assembly through a reinforcement structure;

[0054] S4: Connect the roof assembly and the side panel assembly to form a welded body assembly.

[0055] Therefore, it can be seen that the present invention, through the design and manufacture of the front sunroof reinforcement plate assembly 2 and the rear sunroof reinforcement plate assembly 3, utilizes a dual sunroof reinforcement ring structure that is not existing technology. Installing this structure on a vehicle allows both front and rear passengers to use the sunroof and improves the vehicle's body performance. Achieving this effect requires significant manpower, effort, and expense in research; therefore, this structure is difficult to conceive of and cannot be directly obtained through the knowledge of those skilled in the art. The dual sunroof reinforcement ring structure is connected to the roof outer panel 9 using a design method, and multiple crossbeams are also connected to the roof outer panel 9, forming a roof assembly and side panel assembly that together form a welded body assembly.

[0056] Compared with existing technologies, this dual sunroof reinforcing ring structure can provide both front and rear passengers with a sunroof experience, and in case of an emergency, front and rear passengers can escape from the front and rear sunroofs respectively.

[0057] Furthermore, the dual sunroof reinforcing ring structure is directly connected to the side assembly through the reinforcing structure, which improves the transmission function of the vehicle body's load-bearing capacity, thereby improving the overall stability of the vehicle; at the same time, the several crossbeams set on the outer panel 9 of the roof can improve the vehicle's torsional resistance.

[0058] Preferably, the process of forming the roof assembly in S2 specifically includes the following steps: fixing the outer roof panel 9 to the tooling structure; placing the front roof crossbeam assembly 1, the front sunroof reinforcement plate assembly 2, the rear sunroof reinforcement plate assembly 3, the middle roof crossbeam assembly 7, and the rear roof crossbeam assembly 8 on it; and fixing them by spot welding and expanding adhesive to form the roof assembly.

[0059] The advantage of this design is that individual components are fixed to the outer panel 9 of the roof by spot welding and expansion adhesive, so that the outer panel 9 of the roof and the required components are integrated as a whole, which facilitates subsequent assembly work and improves the manufacturing efficiency of the car roof.

[0060] Preferably, the connection process in S3 through the reinforcement structure specifically includes the following steps: two M6 bolts (symmetrical left and right) are installed at the position of the front sunroof reinforcement ring overlapping structure 4; the front sunroof reinforcement ring connecting plate assembly 5 is fixed to the welded body assembly with four M6 bolts; the rear sunroof reinforcement ring connecting plate assembly 6 is fixed to the welded body assembly with four M6 bolts.

[0061] The benefits of this design are that it strengthens the bond between the sunroof reinforcement ring and the side assembly, and allows the sunroof reinforcement ring to be directly connected to the side assembly, thereby improving the transmission of loads on the vehicle body and enhancing the overall stability of the car.

[0062] Preferably, the process of forming the welded body assembly in S4 specifically includes the following steps: at the main welding point station, the roof assembly is lifted up and lowered in a basically vertical direction. The left and right sides of the roof assembly overlap with the left and right sides of the side panel assembly and are fixed by spot welding to form the welded body assembly.

[0063] The advantage of this design is that the assembly method allows the cover assembly to be dropped from its designed position, with the side panel assembly placed underneath it in advance, facilitating alignment between the two and reducing assembly operation errors.

[0064] Example 2

[0065] The top cover with a double skylight reinforcing ring structure in this embodiment of the invention is shown in the image. Figure 1 As shown, the roof includes an outer panel 9, and the inner side of the outer panel 9 is sequentially covered with a front roof crossbeam assembly 1, a front sunroof reinforcement plate assembly 2, a rear sunroof reinforcement plate assembly 3, a roof middle crossbeam assembly 7, and a roof rear crossbeam assembly 8.

[0066] Preferably, the outer side of the top cover outer panel 9 is fixed to the side panel assembly by welding.

[0067] Preferably, both the front sunroof reinforcement plate assembly 2 and the rear sunroof reinforcement plate assembly 3 are made of high-strength steel with a material thickness of 1.3mm. The front sunroof reinforcement plate assembly 2 is fixed to the roof shell by a combination of spot welding and hot welding, while the rear sunroof reinforcement plate assembly 3 is fixed to the roof shell by spot welding and expansion adhesive.

[0068] Preferably, the front top crossbeam assembly 1 is made of high-strength steel with a material thickness of 0.9mm, and it is fixed to the outer plate of the top cover 9 by spot welding. The two ends of the front top crossbeam assembly 1 are overlapped with the side wall assembly by spot welding. The middle crossbeam assembly 7 of the top cover is made of high-strength steel with a material thickness of 0.7mm, and it is fixed to the outer plate of the top cover 9 by spot welding and expanding adhesive. The rear crossbeam assembly 8 of the top cover is made of high-strength steel with a material thickness of 0.9mm, and it is fixed to the outer plate of the top cover 9 by spot welding and expanding adhesive. The two ends of the rear crossbeam assembly 8 of the top cover are overlapped with the side wall assembly by spot welding.

[0069] Preferably, the front sunroof reinforcement plate assembly 2 and the side wall assembly are fixed together by the front sunroof reinforcement ring overlapping structure 4 and bolts.

[0070] Preferred, see Figure 2 As shown, the left and right sides of the front sunroof reinforcement plate assembly 2 are fixed to the side wall assembly through the front sunroof reinforcement ring connecting plate assembly 5 and bolts; the left and right sides of the rear sunroof reinforcement plate assembly 3 are fixed to the side wall assembly through the rear sunroof reinforcement ring connecting plate assembly 6 and bolts.

[0071] See Figure 3 As shown, the manufacturing method of the top cover with a double skylight reinforcing ring structure in this embodiment of the invention includes the following steps:

[0072] S1: Fabricate the front sunroof reinforcement plate assembly 2 and the rear sunroof reinforcement plate assembly 3;

[0073] S2: Connect the front top crossbeam assembly 1, the front sunroof reinforcement plate assembly 2, the rear sunroof reinforcement plate assembly 3, the roof middle crossbeam assembly 7, and the roof rear crossbeam assembly 8 to the roof outer plate 9 respectively to form the roof assembly;

[0074] S3: Connect the front sunroof reinforcement plate assembly 2 and the rear sunroof reinforcement plate assembly 3 to the side wall assembly through a reinforcement structure;

[0075] S4: Connect the roof assembly and the side panel assembly to form a welded body assembly.

[0076] Preferably, the process of forming the roof assembly in S2 specifically includes the following steps: fixing the outer roof panel 9 to the tooling structure; placing the front roof crossbeam assembly 1, the front sunroof reinforcement plate assembly 2, the rear sunroof reinforcement plate assembly 3, the middle roof crossbeam assembly 7, and the rear roof crossbeam assembly 8 on it; and fixing them by spot welding and expanding adhesive to form the roof assembly.

[0077] Preferably, the connection process in S3 through the reinforcement structure specifically includes the following steps: four M6 bolts (symmetrical left and right) are installed at the position of the front sunroof reinforcement ring overlapping structure 4; the front sunroof reinforcement ring connecting plate assembly 5 is fixed to the welded body assembly with five M6 bolts; the rear sunroof reinforcement ring connecting plate assembly 6 is fixed to the welded body assembly with five M6 bolts.

[0078] Preferably, the process of forming the welded body assembly in S4 specifically includes the following steps: at the main welding point station, the roof assembly is lifted up and lowered in a basically vertical direction. The left and right sides of the roof assembly overlap with the left and right sides of the side panel assembly and are fixed by spot welding to form the welded body assembly.

[0079] Example 3

[0080] The top cover with a double skylight reinforcing ring structure in this embodiment of the invention is shown in the image. Figure 1 As shown, the roof includes an outer panel 9, and the inner side of the outer panel 9 is sequentially covered with a front roof crossbeam assembly 1, a front sunroof reinforcement plate assembly 2, a rear sunroof reinforcement plate assembly 3, a roof middle crossbeam assembly 7, and a roof rear crossbeam assembly 8.

[0081] Preferably, the outer side of the top cover outer panel 9 is fixed to the side panel assembly by welding.

[0082] Preferably, both the front sunroof reinforcement plate assembly 2 and the rear sunroof reinforcement plate assembly 3 are made of high-strength steel with a material thickness of 1.1mm. The front sunroof reinforcement plate assembly 2 is fixed to the roof shell by a combination of spot welding and hot welding, while the rear sunroof reinforcement plate assembly 3 is fixed to the roof shell by spot welding and expansion adhesive.

[0083] Preferably, the front top crossbeam assembly 1 is made of high-strength steel with a material thickness of 0.7mm, and it is fixed to the outer plate of the top cover 9 by spot welding. The two ends of the front top crossbeam assembly 1 are overlapped with the side wall assembly by spot welding. The middle crossbeam assembly 7 of the top cover is made of high-strength steel with a material thickness of 0.5mm, and it is fixed to the outer plate of the top cover 9 by spot welding and expanding adhesive. The rear crossbeam assembly 8 of the top cover is made of high-strength steel with a material thickness of 0.7mm, and it is fixed to the outer plate of the top cover 9 by spot welding and expanding adhesive. The two ends of the rear crossbeam assembly 8 of the top cover are overlapped with the side wall assembly by spot welding.

[0084] Preferably, the front sunroof reinforcement plate assembly 2 and the side wall assembly are fixed together by the front sunroof reinforcement ring overlapping structure 4 and bolts.

[0085] Preferred, see Figure 2As shown, the left and right sides of the front sunroof reinforcement plate assembly 2 are fixed to the side wall assembly through the front sunroof reinforcement ring connecting plate assembly 5 and bolts; the left and right sides of the rear sunroof reinforcement plate assembly 3 are fixed to the side wall assembly through the rear sunroof reinforcement ring connecting plate assembly 6 and bolts.

[0086] See Figure 3 As shown, the manufacturing method of the top cover with a double skylight reinforcing ring structure in this embodiment of the invention includes the following steps:

[0087] S1: Fabricate the front sunroof reinforcement plate assembly 2 and the rear sunroof reinforcement plate assembly 3;

[0088] S2: Connect the front top crossbeam assembly 1, the front sunroof reinforcement plate assembly 2, the rear sunroof reinforcement plate assembly 3, the roof middle crossbeam assembly 7, and the roof rear crossbeam assembly 8 to the roof outer plate 9 respectively to form the roof assembly;

[0089] S3: Connect the front sunroof reinforcement plate assembly 2 and the rear sunroof reinforcement plate assembly 3 to the side wall assembly through a reinforcement structure;

[0090] S4: Connect the roof assembly and the side panel assembly to form a welded body assembly.

[0091] Preferably, the process of forming the roof assembly in S2 specifically includes the following steps: fixing the outer roof panel 9 to the tooling structure; placing the front roof crossbeam assembly 1, the front sunroof reinforcement plate assembly 2, the rear sunroof reinforcement plate assembly 3, the middle roof crossbeam assembly 7, and the rear roof crossbeam assembly 8 on it; and fixing them by spot welding and expanding adhesive to form the roof assembly.

[0092] Preferably, the connection process in S3 through the reinforcement structure specifically includes the following steps: six M6 bolts (symmetrical left and right) are installed at the position of the front sunroof reinforcement ring overlapping structure 4; the front sunroof reinforcement ring connecting plate assembly 5 is fixed to the welded body assembly with six M6 bolts; the rear sunroof reinforcement ring connecting plate assembly 6 is fixed to the welded body assembly with six M6 bolts.

[0093] Preferably, the process of forming the welded body assembly in S4 specifically includes the following steps: at the main welding point station, the roof assembly is lifted up and lowered in a basically vertical direction. The left and right sides of the roof assembly overlap with the left and right sides of the side panel assembly and are fixed by spot welding to form the welded body assembly.

[0094] This invention is not limited to the embodiments described above. Those skilled in the art can make various improvements and modifications without departing from the principles of this invention, and these improvements and modifications are also considered within the scope of protection of this invention. Contents not described in detail in this specification are prior art known to those skilled in the art.

Claims

1. A method for manufacturing a roof with a double skylight reinforcing ring structure, characterized in that, The top cover includes: The roof includes an outer panel (9), and the inner side of the outer panel (9) is covered with a front roof crossbeam assembly (1), a front sunroof reinforcement plate assembly (2), a rear sunroof reinforcement plate assembly (3), a roof middle crossbeam assembly (7), and a roof rear crossbeam assembly (8). Both the front sunroof reinforcement plate assembly (2) and the rear sunroof reinforcement plate assembly (3) are made of high-strength steel structure; The manufacturing method includes the following steps: Fabricate the front sunroof reinforcement plate assembly (2) and the rear sunroof reinforcement plate assembly (3); connect the front roof crossbeam assembly (1), the front sunroof reinforcement plate assembly (2), the rear sunroof reinforcement plate assembly (3), the roof middle crossbeam assembly (7), and the roof rear crossbeam assembly (8) to the roof outer panel (9) respectively to form the roof assembly; connect the front sunroof reinforcement plate assembly (2) and the rear sunroof reinforcement plate assembly (3) to the side panel assembly respectively through a reinforcement structure; connect the roof assembly and the side panel assembly to form a welded body assembly; The process of forming the welded body assembly specifically includes the following steps: lifting the roof assembly and lowering it in a basically vertical direction, with the left and right sides of the roof assembly overlapping the left and right sides of the side panel assembly, and fixing it by welding to form the welded body assembly; The process of connecting by strengthening the structure specifically includes the following steps: installing several bolts at the position of the front sunroof reinforcing ring overlapping structure (4); fixing the front sunroof reinforcing ring connecting plate assembly (5) to the welded body assembly with several bolts; fixing the rear sunroof reinforcing ring connecting plate assembly (6) to the welded body assembly with several bolts; The front sunroof reinforcement plate assembly (2) and the side wall assembly are fixed together by the front sunroof reinforcement ring overlapping structure (4).

2. The manufacturing method of the top cover with a double skylight reinforcing ring structure as described in claim 1, characterized in that, The process of forming the roof assembly specifically includes the following steps: placing the front roof crossbeam assembly (1), the front sunroof reinforcement plate assembly (2), the rear sunroof reinforcement plate assembly (3), the roof middle crossbeam assembly (7), and the roof rear crossbeam assembly (8) on the roof outer plate (9); and fixing them by welding and expanding glue to form the roof assembly.

3. The manufacturing method of the top cover with a double skylight reinforcing ring structure as described in claim 1, characterized in that: The front sunroof reinforcement plate assembly (2) is fixed to the roof shell by welding, and the rear sunroof reinforcement plate assembly (3) is fixed to the roof shell by welding with an expansion agent.

4. The manufacturing method of the top cover with a double skylight reinforcing ring structure as described in claim 1, characterized in that: The outer side of the top cover (9) is fixed with a side panel assembly.

5. The manufacturing method of the top cover with a double skylight reinforcing ring structure as described in claim 4, characterized in that: The front top crossbeam assembly (1) is made of high-strength steel and is fixed to the outer plate of the top cover (9) by welding. The two ends of the front top crossbeam assembly (1) are fixed to the side wall assembly by welding. The middle crossbeam assembly (7) of the top cover is made of high-strength steel and is fixed to the outer plate of the top cover (9) by welding and expanding adhesive. The rear crossbeam assembly (8) of the top cover is made of high-strength steel and is fixed to the outer plate of the top cover (9) by welding and expanding adhesive. The two ends of the rear crossbeam assembly (8) of the top cover are fixed to the side wall assembly by welding.

6. The manufacturing method of the top cover with a double skylight reinforcing ring structure as described in claim 4, characterized in that: The left and right sides of the front sunroof reinforcement plate assembly (2) and the side wall assembly are fixed by the front sunroof reinforcement ring connecting plate assembly (5); the left and right sides of the rear sunroof reinforcement plate assembly (3) and the side wall assembly are fixed by the rear sunroof reinforcement ring connecting plate assembly (6).

Images