Vehicle body front cabin frame assembly, vehicle and preparation method

Abstract

The invention relates to the technical field of vehicle manufacturing, in particular to a vehicle body front cabin frame assembly, a vehicle and a preparation method, and aims to solve the problems that the production takt is affected and the production efficiency is reduced due to the fact that an existing vehicle body front cabin frame structure is complex in component and multiple in lower vehicle body splicing procedures. The vehicle body front cabin frame assembly comprises a front longitudinal beam assembly, wherein the front longitudinal beam assembly mainly comprises a front longitudinal beam inner plate assembly, a front longitudinal beam outer plate assembly and a front damping tower assembly; the front longitudinal beam assembly further comprises a structural force transmission piece, the structural force transmission piece comprises a longitudinal beam rear upper connecting plate, and the front longitudinal beam inner plate assembly, the front longitudinal beam outer plate assembly and the front damping tower assembly are all connected with the longitudinal beam rear upper connecting plate to achieve pre-splicing. Through structural optimization of all the modules, the complexity of the frame structure of the front cabin of the vehicle body is reduced, the number of the modules in the modular installation process is reduced, and the existing problems are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle manufacturing, and specifically provides a vehicle body front cabin frame assembly, a vehicle and a preparation method. Background Art

[0002] In traditional design concepts and manufacturing strategies, as the core part of the lower body assembly, the front cabin area usually has complex parts and many welding processes due to the multiple structural, functional and performance requirements. Specifically, as the main components of the front cabin area, the front longitudinal beam, front wheel cover and front enclosure cross beam are usually used as independent supply-level assemblies for lower body assembly welding in the factory. However, due to the accessibility limitations of the connection process, the front longitudinal beam body usually needs to be divided into the front longitudinal beam inner plate and the front longitudinal beam outer plate, and the shock tower and the front longitudinal beam body are usually designed to be detachably installed in the existing manufacturing process. As a result, the front cabin frame structure is complex and there are many lower body assembly processes (usually 5 or 6 sequences), which to a certain extent affects the production rhythm and reduces production efficiency.

[0003] In view of this, the art needs a new vehicle body front cabin frame assembly, vehicle and preparation method to solve the existing problems. Summary of the invention

[0004] The present invention aims to solve the above technical problem, that is, to solve the problem that the existing vehicle body front cabin frame structure has complex parts and many lower body assembly processes, which affects the production rhythm and reduces production efficiency.

[0005] In a first aspect, the present invention provides a vehicle body front cabin frame assembly, the vehicle body front cabin frame assembly includes a front longitudinal beam assembly, the front longitudinal beam assembly includes a front longitudinal beam inner plate assembly, a front longitudinal beam outer plate assembly and a front shock tower assembly; the front longitudinal beam assembly also includes a structural force transmission member, the structural force transmission member includes a longitudinal beam rear upper connecting plate, the front longitudinal beam inner plate assembly, the front longitudinal beam outer plate assembly and the front shock tower assembly are all connected to the longitudinal beam rear upper connecting plate to achieve pre-splicing.

[0006] In a specific embodiment of the above-mentioned vehicle body front cabin frame assembly, the structural force transmission member also includes a rear lower connecting plate of the longitudinal beam, the rear upper connecting plate of the longitudinal beam is welded and connected to the rear lower connecting plate of the longitudinal beam or is integrally formed and makes the structural force transmission member U-shaped or V-shaped; the front longitudinal beam assembly also includes a front lower torsion box assembly, which is welded and connected to the rear lower connecting plate of the longitudinal beam; the vehicle body front cabin frame assembly also includes a front lower baffle assembly, which is welded and connected to the front lower torsion box assembly.

[0007] In a specific embodiment of the above-mentioned vehicle body front cabin frame assembly, the vehicle body front cabin frame assembly also includes a front anti-collision beam assembly, the front anti-collision beam assembly includes a main cross beam, an energy absorption box and a mounting plate, the energy absorption box is welded to the main cross beam, and the mounting plate is welded to the energy absorption box, the front longitudinal beam assembly also includes a radiator column assembly and a front side beam inner plate assembly, the radiator column assembly is respectively welded to the front side beam inner plate assembly, the front longitudinal beam inner plate assembly and the front longitudinal beam outer plate assembly, the front side beam inner plate assembly is welded to the front shock tower assembly, the radiator column assembly is integrated at the front end of the front longitudinal beam assembly, and the front end plate of the radiator column assembly is screwed and installed through the mounting plate to realize the installation connection between the front longitudinal beam assembly and the front anti-collision beam assembly.

[0008] In a specific embodiment of the above-mentioned vehicle body front cabin frame assembly, the vehicle body front cabin frame assembly also includes a front panel assembly, the front panel assembly is arranged above the front panel lower baffle assembly, the front panel assembly includes a front panel and a front panel inner cross beam, the front panel is welded to the front panel inner cross beam, the front panel inner cross beam is welded to the rear upper connecting plate of the longitudinal beam, and the front panel is welded to the front panel lower baffle assembly.

[0009] In a specific embodiment of the above-mentioned vehicle body front cabin frame assembly, the vehicle body front cabin frame assembly also includes a front dash upper cover plate assembly, which is arranged above the front dash upper cover plate assembly and is respectively welded to the front dash upper cover plate assembly and the front shock tower assembly, and the front dash upper cover plate assembly includes a windshield lower cross beam assembly and a front water gutter assembly, and the windshield lower cross beam assembly is welded to the front water gutter assembly and forms a first angle with the water gutter assembly.

[0010] In a specific embodiment of the above-mentioned vehicle body front cabin frame assembly, the vehicle body front cabin frame assembly also includes an A-pillar inner panel assembly, which is arranged on the side of the front panel assembly and is respectively welded to the front panel assembly, the front panel lower baffle assembly, the front panel upper cover assembly, the front shock tower assembly and the front side beam inner panel.

[0011] In a specific embodiment of the above-mentioned vehicle body front cabin frame assembly, a subframe mounting point, a battery pack mounting point and a vehicle body main positioning point are provided on the front lower torsion box assembly, and / or the front dash lower baffle assembly includes a front dash lower baffle, which is a through-type integrated structure, and a middle channel front reinforcement plate and a battery pack cooling water pipe joint bracket are provided on the front dash lower baffle.

[0012] In a specific embodiment of the above vehicle body front cabin frame assembly, the front enclosure inner cross beam includes a first sub-cross beam and a second sub-cross beam, and the first sub-cross beam is welded to the second sub-cross beam.

[0013] In a specific embodiment of the above-mentioned vehicle body front cabin frame assembly, the front cowl upper cover plate assembly also includes a front cowl upper connecting plate, a reinforcing support plate and a mounting bracket, and the front cowl upper connecting plate, the reinforcing support plate and the mounting bracket are respectively welded to the water trough assembly; the water trough assembly includes a water trough plate and a water trough cross beam reinforcement plate, the water trough plate and the water trough reinforcement plate are welded to each other, and an air inlet sealing plate is provided on the water trough plate.

[0014] In a specific embodiment of the above-mentioned vehicle body front cabin frame assembly, the A-pillar inner panel assembly includes an A-pillar inner panel, an A-pillar joint reinforcement plate, a front dash cross beam joint reinforcement plate and a threshold joint reinforcement plate, and the A-pillar inner panel is welded to the A-pillar joint reinforcement plate, the front dash cross beam joint reinforcement plate and the threshold joint reinforcement plate, respectively.

[0015] In a specific embodiment of the vehicle body front cabin frame assembly, the front wall panel assembly further includes a front wall outer cross beam, and the front wall outer cross beam is welded to the front wall inner cross beam.

[0016] In a second aspect, the present invention further provides a vehicle, comprising the vehicle body front cabin frame assembly according to any one of the above embodiments.

[0017] In a third aspect, the present invention further provides a method for preparing a vehicle body front cabin frame assembly, wherein the vehicle body front cabin frame assembly is the vehicle body front cabin frame assembly described in the above-mentioned embodiment, and the preparation method comprises: screwing the front anti-collision beam assembly to the front longitudinal beam assembly, and welding the front longitudinal beam assembly to the front lower baffle assembly, and using the front anti-collision beam assembly, the front longitudinal beam assembly and the front lower baffle assembly as the first-order parts for producing the vehicle body front cabin frame assembly; and welding the front baffle assembly to the front longitudinal beam assembly. The front dash lower baffle assembly and the front longitudinal beam assembly are respectively welded and connected, and serve as the second-order component produced by the vehicle body front engine room frame assembly; the front dash upper cover assembly is respectively welded and connected with the dash assembly and the front longitudinal beam assembly, and serves as the third-order component produced by the vehicle body front engine room frame assembly; the A-pillar inner panel assembly is respectively welded and connected with the dash assembly, the front dash lower baffle assembly, the dash upper cover assembly and the front longitudinal beam assembly, and serves as the fourth-order component produced by the vehicle body front engine room frame assembly.

[0018] In a specific embodiment of the above-mentioned preparation method for the front engine compartment frame assembly of the vehicle body, a front reinforcement plate of the middle channel and a battery pack cooling water pipe joint bracket are provided on the front lower fender, and the step of "screw-connecting the front anti-collision beam assembly with the front longitudinal beam assembly, and welding the front longitudinal beam assembly with the front lower fender assembly, and using the front anti-collision beam assembly, the front longitudinal beam assembly and the front lower fender assembly as the first-order parts for the production of the front engine compartment frame assembly of the vehicle body" further includes: welding the energy absorption box to the main cross beam, and welding the mounting plate to the energy absorption box to prepare the front anti-collision beam assembly; welding the front longitudinal beam inner plate assembly, the front longitudinal beam outer plate assembly and the front shock tower assembly to the longitudinal beam rear upper connecting plate Then, the water tank pillar assembly is welded to the front side beam inner plate assembly, the front longitudinal beam inner plate assembly and the front longitudinal beam outer plate assembly respectively, the front side beam inner plate assembly is welded to the front shock tower assembly, and the front lower torsion box assembly is welded to the longitudinal beam rear lower connecting plate to prepare the front longitudinal beam assembly; the front enclosure lower baffle is welded to the front reinforcement plate of the middle channel and the battery pack cooling water pipe joint bracket to obtain the front enclosure lower baffle assembly; the water tank pillar assembly is screwed to the mounting plate to achieve the screw connection between the front longitudinal beam assembly and the front anti-collision beam assembly; the front enclosure lower baffle assembly is welded to the front lower torsion box assembly to achieve the welding connection between the front enclosure lower baffle assembly and the front longitudinal beam assembly.

[0019] In a specific embodiment of the above-mentioned preparation method for the front engine compartment frame assembly of the vehicle body, the front inner cross beam includes a first sub-cross beam and a second sub-cross beam, and the step of "welding and connecting the front panel assembly to the front lower baffle assembly and the front longitudinal beam assembly respectively, and serving as the second-order component produced by the front engine compartment frame assembly of the vehicle body" further includes: welding and connecting the first sub-cross beam to the second sub-cross beam to obtain the front inner cross beam, welding and connecting the front inner cross beam to the front panel to obtain the front panel assembly; welding and connecting the front inner cross beam to the rear upper connecting plate of the longitudinal beam, and welding and connecting the front panel to the front lower baffle assembly.

[0020] In a specific embodiment of the above-mentioned preparation method for the front engine compartment frame assembly of the vehicle body, the front cowl upper cover assembly also includes a front cowl upper connecting plate, a reinforcing support plate and a mounting bracket, the water flow channel assembly includes a water flow channel plate and a water flow channel cross beam reinforcement plate, and the step of "welding and connecting the front cowl upper cover assembly to the front cowl assembly and the front longitudinal beam assembly, respectively, and serving as the third-order upper component produced by the front engine compartment frame assembly of the vehicle body" further includes: welding and connecting the front cowl upper connecting plate, the reinforcing support plate and the mounting bracket to the water flow channel assembly, respectively, and welding and connecting the water flow channel plate and the water flow channel reinforcement plate to obtain the front cowl upper cover assembly; welding and connecting the front cowl upper cover assembly to the front cowl assembly and the front shock tower assembly, respectively.

[0021] In a specific embodiment of the above-mentioned preparation method for the front engine compartment frame assembly of the vehicle body, the A-pillar inner panel assembly includes an A-pillar inner panel, an A-pillar joint reinforcement plate, a front dash cross beam joint reinforcement plate and a door sill joint reinforcement plate, and the step of "welding and connecting the A-pillar inner panel assembly to the front dash panel assembly, the front dash lower baffle assembly, the front dash upper cover assembly and the front longitudinal beam assembly, and using it as the fourth-order upper component produced by the front engine compartment frame assembly of the vehicle body" further includes: welding and connecting the A-pillar inner panel to the A-pillar joint reinforcement plate, the front dash cross beam joint reinforcement plate and the door sill joint reinforcement plate to obtain the A-pillar inner panel assembly; welding and connecting the A-pillar inner panel assembly to the front dash panel assembly, the front dash lower baffle assembly, the front dash upper cover assembly, the front shock tower assembly and the front side beam inner panel.

[0022] The technical effect of the present invention is as follows: compared with the prior art in which the front longitudinal beam inner plate and the front longitudinal beam outer plate are separately mounted and the front shock tower and the front longitudinal beam are detachably installed, the front longitudinal beam assembly of the vehicle body front cabin frame assembly of the present invention includes a structural force transmission member, and the front longitudinal beam inner plate assembly, the front longitudinal beam outer plate assembly and the front shock tower assembly are connected by the longitudinal beam rear upper connecting plate of the structural force transmission member to achieve pre-splicing, thereby optimizing the structural integration of the front longitudinal beam assembly, while reducing the manufacturing process of the front longitudinal beam assembly, improving the main line production efficiency and dimensional accuracy in the factory, thereby achieving a dual improvement in production capacity and quality.

[0023] Option 1, a vehicle body front cabin frame assembly, characterized in that the vehicle body front cabin frame assembly includes a front longitudinal beam assembly, the front longitudinal beam assembly includes a front longitudinal beam inner panel assembly, a front longitudinal beam outer panel assembly and a front shock tower assembly; the front longitudinal beam assembly also includes a structural force transmission member, the structural force transmission member includes a longitudinal beam rear upper connecting plate, the front longitudinal beam inner panel assembly, the front longitudinal beam outer panel assembly and the front shock tower assembly are all connected to the longitudinal beam rear upper connecting plate to achieve pre-splicing.

[0024] Option 2, the vehicle body front cabin frame assembly according to claim 1, is characterized in that the structural force transmission member also includes a rear lower connecting plate of the longitudinal beam, the rear upper connecting plate of the longitudinal beam is welded and connected to the rear lower connecting plate of the longitudinal beam or is integrally formed and makes the structural force transmission member U-shaped or V-shaped; the front longitudinal beam assembly also includes a front lower torsion box assembly, the front lower torsion box assembly is welded and connected to the rear lower connecting plate of the longitudinal beam; the vehicle body front cabin frame assembly also includes a front lower baffle assembly, the front lower baffle assembly is welded and connected to the front lower torsion box assembly.

[0025] Solution 3. The vehicle body front cabin frame assembly according to claim 2 is characterized in that the vehicle body front cabin frame assembly also includes a front anti-collision beam assembly, the front anti-collision beam assembly includes a main cross beam, an energy absorption box and a mounting plate, the energy absorption box is welded to the main cross beam, and the mounting plate is welded to the energy absorption box, the front longitudinal beam assembly also includes a radiator column assembly and a front side beam inner plate assembly, the radiator column assembly is respectively welded to the front side beam inner plate assembly, the front longitudinal beam inner plate assembly and the front longitudinal beam outer plate assembly, the front side beam inner plate assembly is welded to the front shock tower assembly, the radiator column assembly is integrated at the front end of the front longitudinal beam assembly, and the front end plate of the radiator column assembly is screwed and installed through the mounting plate to realize the installation connection between the front longitudinal beam assembly and the front anti-collision beam assembly.

[0026] Solution 4, the vehicle body front cabin frame assembly according to claim 3 is characterized in that the vehicle body front cabin frame assembly also includes a front panel assembly, the front panel assembly is arranged above the front panel lower baffle assembly, the front panel assembly includes a front panel and a front panel inner cross beam, the front panel is welded to the front panel inner cross beam, the front panel inner cross beam is welded to the rear upper connecting plate of the longitudinal beam, and the front panel is welded to the front panel lower baffle assembly.

[0027] Option 5. The vehicle body front cabin frame assembly according to claim 4 is characterized in that the vehicle body front cabin frame assembly also includes a front dash upper cover assembly, the front dash upper cover assembly is arranged above the front dash assembly and is welded to the front dash assembly and the front shock tower assembly, respectively, the front dash upper cover assembly includes a windshield lower cross beam assembly and a front water gutter assembly, the windshield lower cross beam assembly is welded to the front water gutter assembly and forms a first angle with the water gutter assembly.

[0028] Option 6. The vehicle body front cabin frame assembly according to claim 5 is characterized in that the vehicle body front cabin frame assembly also includes an A-pillar inner panel assembly, and the A-pillar inner panel assembly is arranged on the side of the front panel assembly, and is respectively welded to the front panel assembly, the front panel lower baffle assembly, the front panel upper cover assembly, the front shock tower assembly and the front side beam inner panel.

[0029] Option 7, the vehicle body front cabin frame assembly according to claim 2, is characterized in that the front lower torsion box assembly is provided with a subframe mounting point, a battery pack mounting point and a vehicle body main positioning point, and / or the front dash lower baffle assembly includes a front dash lower baffle, the front dash lower baffle is a through-type integrated structure, and the front dash lower baffle is provided with a middle channel front reinforcement plate and a battery pack cooling water pipe joint bracket.

[0030] Solution 8: The vehicle body front cabin frame assembly according to claim 4, characterized in that the front enclosure inner cross beam comprises a first sub-cross beam and a second sub-cross beam, and the first sub-cross beam is welded to the second sub-cross beam.

[0031] Solution 9. The vehicle body front cabin frame assembly according to claim 5 is characterized in that the front dash upper cover assembly also includes a front dash upper connecting plate, a reinforcing support plate and a mounting bracket, and the front dash upper connecting plate, the reinforcing support plate and the mounting bracket are respectively welded to the water trough assembly; the water trough assembly includes a water trough plate and a water trough crossbeam reinforcement plate, the water trough plate and the water trough reinforcement plate are welded to each other, and an air inlet sealing plate is provided on the water trough plate.

[0032] Solution 10. The vehicle body front cabin frame assembly according to claim 6 is characterized in that the A-pillar inner panel assembly includes an A-pillar inner panel, an A-pillar joint reinforcement plate, a dash cross beam joint reinforcement plate and a threshold joint reinforcement plate, and the A-pillar inner panel is welded to the A-pillar joint reinforcement plate, the dash cross beam joint reinforcement plate and the threshold joint reinforcement plate, respectively.

[0033] Solution 11: The vehicle body front cabin frame assembly according to claim 4 is characterized in that the front panel assembly also includes a front panel outer cross beam, and the front panel outer cross beam is welded to the front panel inner cross beam.

[0034] Option 12: A vehicle, characterized in that the vehicle comprises the vehicle body front cabin frame assembly according to any one of claims 1-11.

[0035] Solution 13, a method for preparing a front engine compartment frame assembly for a vehicle body, characterized in that the front engine compartment frame assembly for the vehicle body is the front engine compartment frame assembly for the vehicle body according to claim 6, and the preparation method comprises: screwing the front anti-collision beam assembly to the front longitudinal beam assembly, and welding the front longitudinal beam assembly to the front lower baffle assembly, and using the front anti-collision beam assembly, the front longitudinal beam assembly and the front lower baffle assembly as the first-order parts for producing the front engine compartment frame assembly of the vehicle body; respectively connecting the front baffle assembly to the front longitudinal beam assembly; and welding the front longitudinal beam assembly to the front lower baffle assembly. The front dash lower baffle assembly and the front longitudinal beam assembly are welded and connected, and serve as the second-order component produced by the vehicle body front engine room frame assembly; the front dash upper cover assembly is welded and connected to the front dash assembly and the front longitudinal beam assembly, respectively, and serves as the third-order component produced by the vehicle body front engine room frame assembly; the A-pillar inner panel assembly is welded and connected to the front dash assembly, the front dash lower baffle assembly, the front dash upper cover assembly and the front longitudinal beam assembly, respectively, and serves as the fourth-order component produced by the vehicle body front engine room frame assembly.

[0036] Solution 14. The preparation method for the front engine compartment frame assembly of the vehicle body according to claim 13 is characterized in that a front reinforcement plate of a middle channel and a battery pack cooling water pipe joint bracket are provided on the front lower baffle plate, and the step of "screwing the front anti-collision beam assembly with the front longitudinal beam assembly, and welding the front longitudinal beam assembly with the front lower baffle plate assembly, and using the front anti-collision beam assembly, the front longitudinal beam assembly and the front lower baffle plate assembly as the first-order upper parts of the production of the front engine compartment frame assembly of the vehicle body" further includes: welding the energy absorption box to the main cross beam, and welding the mounting plate to the energy absorption box to prepare the front anti-collision beam assembly; connecting the front longitudinal beam inner plate assembly, the front longitudinal beam outer plate assembly and the front shock tower assembly to the rear upper of the longitudinal beam The connecting plate is welded and connected, the water tank column assembly is respectively welded and connected to the front side beam inner plate assembly, the front longitudinal beam inner plate assembly and the front longitudinal beam outer plate assembly, the front side beam inner plate assembly is welded and connected to the front shock tower assembly, and the front lower torsion box assembly is welded and connected to the longitudinal beam rear lower connecting plate to prepare the front longitudinal beam assembly; the front enclosure lower baffle is welded and connected to the front reinforcement plate of the middle channel and the battery pack cooling water pipe joint bracket to obtain the front enclosure lower baffle assembly; the water tank column assembly is screwed and installed to the mounting plate to realize the screw connection between the front longitudinal beam assembly and the front anti-collision beam assembly; the front enclosure lower baffle assembly is welded and connected to the front lower torsion box assembly to realize the welding connection between the front enclosure lower baffle assembly and the front longitudinal beam assembly.

[0037] Solution 15. The preparation method for the front engine compartment frame assembly of the vehicle body according to claim 13 is characterized in that the front inner cross beam includes a first sub-cross beam and a second sub-cross beam, and the step of "welding and connecting the front panel assembly to the front lower baffle assembly and the front longitudinal beam assembly respectively, and serving as the second-order component produced by the front engine compartment frame assembly of the vehicle body" further includes: welding and connecting the first sub-cross beam to the second sub-cross beam to obtain the front inner cross beam, welding and connecting the front inner cross beam to the front panel to obtain the front panel assembly; welding and connecting the front inner cross beam to the rear upper connecting plate of the longitudinal beam, and welding and connecting the front panel to the front lower baffle assembly.

[0038] Option 16. The preparation method for the front engine compartment frame assembly of the vehicle body according to claim 13 is characterized in that the front cowl upper cover assembly also includes a front cowl upper connecting plate, a reinforcing support plate and a mounting bracket, the water trough assembly includes a water trough plate and a water trough cross beam reinforcement plate, and the step of "welding and connecting the front cowl upper cover assembly to the front cowl assembly and the front longitudinal beam assembly, respectively, and serving as the third-order upper component produced by the front engine compartment frame assembly of the vehicle body" further includes: welding and connecting the front cowl upper connecting plate, the reinforcing support plate and the mounting bracket to the water trough assembly, respectively, and welding and connecting the water trough plate and the water trough reinforcement plate to obtain the front cowl upper cover assembly; welding and connecting the front cowl upper cover assembly to the front cowl assembly and the front shock tower assembly, respectively.

[0039] Solution 17. The preparation method for the front engine compartment frame assembly of the vehicle body according to claim 13 is characterized in that the A-pillar inner panel assembly includes an A-pillar inner panel, an A-pillar joint reinforcement plate, a front dash cross beam joint reinforcement plate and a door sill joint reinforcement plate, and the step of "welding and connecting the A-pillar inner panel assembly to the dash panel assembly, the dash lower baffle assembly, the dash upper cover assembly and the front longitudinal beam assembly, and using it as the fourth-order upper component produced by the vehicle body front engine compartment frame assembly" further includes: welding and connecting the A-pillar inner panel to the A-pillar joint reinforcement plate, the dash cross beam joint reinforcement plate and the door sill joint reinforcement plate to obtain the A-pillar inner panel assembly; welding and connecting the A-pillar inner panel assembly to the dash panel assembly, the dash lower baffle assembly, the dash upper cover assembly, the front shock tower assembly and the front side beam inner panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0041] Figure 1 It is a schematic diagram of the five-sequence upper parts and structural sub-parts of a front cabin in the prior art;

[0042] Figure 2It is another schematic diagram of the five-sequence upper parts and structural sub-parts of the front cabin in the prior art;

[0043] Figure 3 It is a structural schematic diagram of the vehicle body front cabin frame assembly of the present invention;

[0044] Figure 4 It is a structural schematic diagram of the front longitudinal beam assembly of the present invention;

[0045] Figure 5 It is a structural schematic diagram of the front anti-collision beam assembly of the present invention;

[0046] Figure 6 1 is a front structural schematic diagram of a front lower baffle assembly of the present invention;

[0047] Figure 7 is a schematic diagram of the back structure of the front lower baffle assembly of the present invention;

[0048] Figure 8 is a schematic structural diagram of a front wall panel assembly of the present invention;

[0049] Fig. 9 It is a structural schematic diagram of the front wall inner cross beam and the front wall outer cross beam being butt-jointed and welded in the present invention;

[0050] Fig.10 It is a structural schematic diagram of the front cowl upper cover assembly of the present invention;

[0051] Fig.11 It is a structural schematic diagram of the A-pillar inner panel assembly of the present invention;

[0052] Fig.12 It is a schematic diagram of the four-sequence upper parts and structural sub-parts of the vehicle body front cabin frame assembly of the present invention;

[0053] Fig.13 It is a main flow chart of the method for preparing the front cabin frame assembly of the vehicle body of the present invention;

[0054] Fig.14 is a flow chart of step S1 of the method for preparing a vehicle body front cabin frame assembly of the present invention;

[0055] Fig.15 is a flow chart of step S2 of the method for preparing a vehicle body front cabin frame assembly of the present invention;

[0056] Fig.16 is a flow chart of step S3 of the method for preparing a vehicle body front cabin frame assembly of the present invention;

[0057] Fig.17 It is a flow chart of step S4 of the method for preparing the vehicle body front cabin frame assembly of the present invention.

[0058] List of reference numerals:

[0059] 1. Body front cabin frame assembly; 11. Front longitudinal beam assembly; 111. Front longitudinal beam inner plate assembly; 112. Front longitudinal beam outer plate assembly; 113. Front shock tower assembly; 114. Structural force transmission parts; 1141. Longitudinal beam rear upper connecting plate; 1142. Longitudinal beam rear lower connecting plate; 115. Front lower torque box assembly; 1151. Subframe mounting point; 1152. Battery pack mounting point; 1153. Body main positioning point; 116. Water tank column assembly; 117. Front side beam inner plate assembly; 12. Front enclosure lower baffle assembly; 121. Front enclosure lower baffle; 122. Middle channel front reinforcement plate; 123. Battery pack cooling water pipe joint bracket; 13. Front anti-collision beam assembly; 131. Main cross beam ; 132, energy absorption box; 133, mounting plate; 14, front panel assembly; 141, front panel; 142, front panel inner cross beam; 1421, first sub-cross beam; 1422, second sub-cross beam; 143, front panel outer cross beam; 15, front panel upper cover assembly; 151, windshield lower cross beam assembly; 152, front water trough assembly; 1521, water trough plate; 1522, water trough cross beam reinforcement plate; 1523, air inlet sealing plate; 153, front panel upper connecting plate; 154, reinforcement support plate; 155, mounting bracket; 16, A-pillar inner panel assembly; 161, A-pillar inner panel; 162, A-pillar joint reinforcement plate; 163, front panel cross beam joint reinforcement plate; 164, door sill joint reinforcement plate. DETAILED DESCRIPTION

[0060] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0061] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0062] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] Embodiment 1

[0064] like Figure 1-Figure 12 As shown, in order to solve the problem that the existing vehicle body front cabin frame structure is complex in parts and the lower body assembly process is more, which affects the production cycle and reduces the production efficiency, the vehicle body front cabin frame assembly 1 of the present invention includes:

[0065] The front longitudinal beam assembly 11 includes a front longitudinal beam inner plate assembly 111, a front longitudinal beam outer plate assembly 112 and a front shock tower assembly 113. The front longitudinal beam inner plate assembly 111, the front longitudinal beam outer plate assembly 112 and the front shock tower assembly 113 are arranged in sequence from the inside to the outside along the Y direction of the vehicle body. The front longitudinal beam assembly 11 also includes a structural force transmission member 114 and a front lower torque box assembly 115. The structural force transmission member 114 includes a longitudinal beam rear upper connecting plate 1141 and a longitudinal beam rear lower connecting plate 1142. The longitudinal beam rear upper connecting plate 1141 and the longitudinal beam rear lower connecting plate 1142 are welded or integrally formed to make the structural force transmission member 114 U-shaped or V-shaped. The front longitudinal beam inner plate assembly 111, the front longitudinal beam outer plate assembly 112 and the front shock tower assembly 113 are all connected to the longitudinal beam rear upper connecting plate 1141 to achieve pre-joining. The front lower torque box assembly 115 is welded to the longitudinal beam rear lower connecting plate 1142. The front lower torque box assembly 115 is provided with a subframe mounting point 1151, a battery pack mounting point 1152 and a main body positioning point 1153. The longitudinal beam rear lower connecting plate 1142 is welded to the door sill beam of the body (not shown in the figure). The front longitudinal beam assembly 11 also includes a water tank column assembly 116 and a front side beam inner plate assembly 117. The water tank column assembly 116 is welded to the front side beam inner plate assembly 117, the front longitudinal beam inner plate assembly 111 and the front longitudinal beam outer plate assembly 112 respectively. The front side beam inner plate assembly 117 is welded to the front shock tower assembly 113. The advantages of this embodiment are: the front longitudinal beam inner panel assembly 111, the front longitudinal beam outer panel assembly 112 and the front shock tower assembly 113 are connected by the longitudinal beam rear upper connecting plate 1141 of the structural force transmission member 114 to achieve pre-splicing, thereby optimizing the structural integration of the front longitudinal beam assembly 11, while reducing the manufacturing process of the front longitudinal beam assembly 11, improving the main line production efficiency and dimensional accuracy in the factory, thereby achieving a double increase in production capacity and quality, and ensuring structural stability through the frame-type structural connection, solving the problem that the existing vehicle body front cabin frame structure is complex in parts and has more lower body assembly processes, which affects the production rhythm and reduces production efficiency. In addition, the U-shaped or V-shaped structural force transmission member 114 can support and strengthen the front shock tower assembly 113, ensuring the structural stability of the front shock tower assembly 113 after pre-joining with the front longitudinal beam inner plate assembly 111 and the front longitudinal beam outer plate assembly 112. On the other hand, the upper part of the longitudinal beam rear lower connecting plate 1142 can be regarded as an extension of the front enclosure outer cross beam 143 and forms a partial buckle with the front enclosure inner cross beam 142, effectively improving the intrusion amount of the front enclosure in the collision condition. The lower part of the longitudinal beam rear lower connecting plate 1142 is regarded as the rear extension section of the front longitudinal beam connected to the threshold beam, ensuring the smoothness of the main force transmission path of the front longitudinal beam. In addition, by setting the subframe mounting point 1151, the battery pack mounting point 1152 and the body main positioning point 1153 and other key interfaces on the front lower torque box assembly 115, it is ensured that the dimensional accuracy is maximized while optimizing the structure and streamlining the process.

[0066] The front anti-collision beam assembly 13 includes a main cross beam 131, an energy absorption box 132 and a mounting plate 133. The energy absorption box 132 is welded to the main cross beam 131, the mounting plate 133 is welded to the energy absorption box 132, and the mounting plate 133 is screwed and installed with the water tank column assembly 116 to realize the installation connection between the front longitudinal beam assembly 11 and the front anti-collision beam assembly 13. The main cross beam 131 is formed by a roll forming process and is connected to the stamped energy absorption box 132, the mounting plate 133 and other parts by arc welding.

[0067] The front lower baffle assembly 12 includes a front lower baffle 121, which is a through-type integrated structure. The front lower baffle 121 is provided with a center channel front reinforcement plate 122 and a battery pack cooling water pipe joint bracket 123 which is unique to the battery swapping station. The front lower baffle assembly 12 is welded to the front lower torsion box assembly 115, and together with the front longitudinal beam assembly 11 and the front anti-collision beam assembly 13, it forms an initial closed frame of the front cabin structure, effectively ensuring structural stability and manufacturing accuracy.

[0068] The dash panel assembly 14 is arranged above the dash lower baffle assembly 12, and includes a dash panel 141 and a dash inner cross beam 142, the dash panel 141 is welded to the dash inner cross beam 142, the dash inner cross beam 142 is welded to the longitudinal beam rear upper connecting plate 1141, and the dash panel 141 is welded to the dash lower baffle assembly 12. The dash inner cross beam 142 includes a first sub-cross beam 1421 and a second sub-cross beam 1422, and the first sub-cross beam 1421 is welded to the second sub-cross beam 1422. The advantages of this embodiment are as follows: by pre-welding the front panel 141 and the front inner cross beam 142 to form an assembly, the welding of the front longitudinal beam and the front panel 141 enclosed in the front inner cross beam 142 is avoided in the structural design, and all are welded with the front inner cross beam 142 by flange welding, so as to simplify the process, and the front inner cross beam 142 is divided into a first sub-cross beam 1421 and a second sub-cross beam 1422, which is in the form of two parts, thereby improving the molding processability and facilitating the adjustment of the Y-shaped crotch opening size of the front inner cross beam 142, so as to facilitate the matching with the A-pillar.

[0069] The front cowl upper cover plate assembly 15 is arranged above the front cowl assembly 14 and is respectively welded to the front cowl assembly 14 and the front shock tower assembly 113. The front cowl upper cover plate assembly 15 includes a windshield lower crossbeam assembly 151 and a front water trough assembly 152. The windshield lower crossbeam assembly 151 and the front water trough assembly 152 are welded and form a first angle with the water trough assembly. The water trough assembly includes a water trough plate 1521 and a water trough crossbeam reinforcement plate 1522. The water trough plate 1521 and the water trough reinforcement plate are welded, and an air inlet sealing plate 1523 is provided on the water trough plate 1521. The front cowl upper cover plate assembly 15 also includes a front cowl upper connecting plate 153, a reinforcing support plate 154 and a mounting bracket 155, and the front cowl upper connecting plate 153, the reinforcing support plate 154 and the mounting bracket 155 are respectively welded and connected to the water gutter assembly. The advantage of this embodiment is that, different from the common form of separation of the windshield lower crossbeam assembly 151 and the front water gutter assembly 152, this embodiment optimizes the welding posture of the lower body splicing in the water gutter area, so that the windshield lower crossbeam assembly 151 and the front water gutter assembly 152 form a first angle, and on the premise of ensuring the feasibility of the welding connection, the two are effectively structurally synthesized, simplifying the assembly process. It is worth mentioning that with respect to the first angle mentioned above, technicians in this field can adjust it according to the actual assembly direction (X direction or Z direction) of the front cowl upper cover plate, and these changes are all within the protection scope of the present invention.

[0070] The A-pillar inner plate assembly 16 is arranged on the side of the front panel assembly 14, and is respectively welded to the front panel assembly 14, the front panel lower baffle assembly 12, the front panel upper cover assembly 15, the front shock tower assembly 113 and the front side beam inner plate to form a complete water flow channel structure and the front cabin lower body frame structure. The A-pillar inner plate assembly 16 includes an A-pillar inner plate 161, an A-pillar joint reinforcement plate 162, a front panel cross beam joint reinforcement plate 163 and a threshold joint reinforcement plate 164. The A-pillar inner plate 161 is respectively welded to the A-pillar joint reinforcement plate 162, the front panel cross beam joint reinforcement plate 163 and the threshold joint reinforcement plate 164.

[0071] Through the performance requirements and structural characteristics of each sub-assembly, reasonable design integration is carried out to achieve block optimization of the front cabin frame structure of the vehicle body, effectively shortening the main line length and production cycle in the factory, improving structural stability and dimensional accuracy, and realizing the four-sequence loading of the front cabin assembly on the lower body assembly line in the factory, which significantly improves production efficiency.

[0072] Further, such as Fig. 9 As shown, according to performance requirements and space allowed, the dash panel assembly 14 may further include a dash outer cross beam 143 , which is connected to the dash inner cross beam 142 by a butt-welding connection to enhance the structural strength of the dash panel assembly 14 .

[0073] In addition, the present invention also provides a vehicle, comprising the vehicle body front cabin frame assembly 1 in the above embodiment.

[0074] Embodiment 2

[0075] The present invention also provides a method for preparing a vehicle body front cabin frame assembly 1, wherein the vehicle body front cabin frame assembly 1 is the vehicle body front cabin frame assembly 1 in the aforementioned embodiment 1, such as Figure 12-17 As shown, the preparation method comprises:

[0076] S1. Screw the front anti-collision beam assembly 13 and the front longitudinal beam assembly 11, and weld the front longitudinal beam assembly 11 and the front lower baffle assembly 12, and use the front anti-collision beam assembly 13, the front longitudinal beam assembly 11 and the front lower baffle assembly 12 as the first-order parts of the vehicle body front cabin frame assembly 1;

[0077] S2, welding the front wall panel assembly 14 to the front wall lower baffle assembly 12 and the front longitudinal beam assembly 11 respectively, and use it as the second-order upper part of the vehicle body front cabin frame assembly 1;

[0078] S3, welding the front cowl upper cover plate assembly 15 to the front cowl plate assembly 14 and the front longitudinal beam assembly 11 respectively, and use it as the third-order upper component of the vehicle body front engine room frame assembly 1;

[0079] S4. The A-pillar inner panel assembly 16 is welded and connected to the front panel assembly 14, the front panel lower baffle assembly 12, the front panel upper cover assembly 15 and the front longitudinal beam assembly 11 respectively, and used as the fourth-order upper part of the vehicle body front cabin frame assembly 1.

[0080] In the above steps, step S1 further comprises:

[0081] S11, welding the energy absorption box 132 to the main cross beam 131, and welding the mounting plate 133 to the energy absorption box 132 to prepare the front anti-collision beam assembly 13;

[0082] S12, welding the front longitudinal beam inner plate assembly 111, the front longitudinal beam outer plate assembly 112 and the front shock tower assembly 113 to the longitudinal beam rear upper connecting plate 1141, welding the water tank pillar assembly 116 to the front side beam inner plate assembly 117, the front longitudinal beam inner plate assembly 111 and the front longitudinal beam outer plate assembly 112, welding the front side beam inner plate assembly 117 to the front shock tower assembly 113, welding the front lower torsion box assembly 115 to the longitudinal beam rear lower connecting plate 1142 to prepare the front longitudinal beam assembly 11;

[0083] S13, welding the front lower baffle 121, the middle channel front reinforcement plate 122, and the battery pack cooling water pipe joint bracket 123 to obtain the front lower baffle assembly 12;

[0084] S14, screwing the water tank column assembly 116 and the mounting plate 133 to achieve screw connection between the front longitudinal beam assembly 11 and the front anti-collision beam assembly 13;

[0085] S15, welding the front lower baffle assembly 12 to the front lower torque box assembly 115 to achieve welding connection between the front lower baffle assembly 12 and the front longitudinal beam assembly 11.

[0086] Step S2 further comprises:

[0087] S21, welding the first sub-crossbeam 1421 and the second sub-crossbeam 1422 to obtain the front wall inner crossbeam 142, and welding the front wall inner crossbeam 142 and the front wall panel 141 to obtain the front wall panel assembly 14;

[0088] S22, welding the inner cross beam 142 of the front wall to the rear upper connecting plate 1141 of the longitudinal beam, and welding the front wall panel 141 to the lower baffle assembly 12 of the front wall to connect them.

[0089] Step S3 further comprises:

[0090] S31, welding the upper connecting plate 153, the reinforcing support plate 154 and the mounting bracket 155 to the water trough assembly respectively, and welding the water trough plate 1521 to the water trough reinforcing plate to obtain the upper cover plate assembly 15;

[0091] S32, welding the front dash upper cover assembly 15 to the dash panel assembly 14 and the front shock tower assembly 113 respectively.

[0092] Step S4 further comprises:

[0093] S41, welding the A-pillar inner plate 161 to the A-pillar joint reinforcement plate 162, the dash cross beam joint reinforcement plate 163 and the door sill joint reinforcement plate 164 to obtain the A-pillar inner plate assembly 16;

[0094] S42, welding and connecting the A-pillar inner plate assembly 16 to the dash panel assembly 14, the dash lower baffle assembly 12, the dash upper cover assembly 15, the front shock tower assembly 113 and the front side beam inner plate respectively.

[0095] The advantages of the above embodiment are: different from the common five-sequence or even six-sequence loading of the front cabin in the lower body assembly, the present embodiment adopts the above-mentioned sub-assembly structural forms to achieve four-sequence loading, effectively reducing the main line length and production cycle in the factory, improving the structural stability and dimensional accuracy, and significantly improving production efficiency.

[0096] It is also worth mentioning that technicians in this field can also set a reserved process between step S1 and step S4 to improve production flexibility and adapt to mixed-line production of multiple models. These changes are within the scope of protection of the present invention.

[0097] It should be noted that the above-mentioned implementation mode is only used to illustrate the principle of the present invention and is not intended to limit the scope of protection of the present invention. Without departing from the principle of the present invention, those skilled in the art can adjust the above-mentioned structure so that the present invention can be applied to more specific application scenarios.

[0098] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A vehicle body front cabin frame assembly (1), characterized in that: The vehicle body front cabin frame assembly (1) comprises a front longitudinal beam assembly (11), and the front longitudinal beam assembly (11) comprises a front longitudinal beam inner plate assembly (111), a front longitudinal beam outer plate assembly (112) and a front shock tower assembly (113); The front longitudinal beam assembly (11) also includes a structural force transmission member (114), and the structural force transmission member (114) includes a longitudinal beam rear upper connecting plate (1141). The front longitudinal beam inner plate assembly (111), the front longitudinal beam outer plate assembly (112) and the front shock tower assembly (113) are all connected to the longitudinal beam rear upper connecting plate (1141) to achieve pre-assembly.

2. The vehicle body front cabin frame assembly (1) according to claim 1, characterized in that: The structural force transmission member (114) further comprises a longitudinal beam rear lower connecting plate (1142), wherein the longitudinal beam rear upper connecting plate (1141) and the longitudinal beam rear lower connecting plate (1142) are welded or integrally formed to make the structural force transmission member (114) U-shaped or V-shaped; The front longitudinal beam assembly (11) further comprises a front lower torque box assembly (115), wherein the front lower torque box assembly (115) is welded to the longitudinal beam rear lower connecting plate (1142); The vehicle body front cabin frame assembly (1) also includes a front lower baffle assembly (12), and the front lower baffle assembly (12) is welded to the front lower torque box assembly (115).

3. The vehicle body front cabin frame assembly (1) according to claim 2, characterized in that: The vehicle body front cabin frame assembly (1) further includes a front anti-collision beam assembly (13), the front anti-collision beam assembly (13) includes a main cross beam (131), an energy absorption box (132) and a mounting plate (133), the energy absorption box (132) is welded to the main cross beam (131), the mounting plate (133) is welded to the energy absorption box (132), the front longitudinal beam assembly (11) further includes a water tank column assembly (116) and a front side beam inner plate assembly (117), the water tank column assembly (116) is respectively connected to the main cross beam (131), and the mounting plate (133) is welded to the energy absorption box (132). The front side beam inner plate assembly (117), the front longitudinal beam inner plate assembly (111) and the front longitudinal beam outer plate assembly (112) are welded and connected, the front side beam inner plate assembly (117) is welded and connected to the front shock tower assembly (113), the water tank column assembly (116) is integrated at the front end of the front longitudinal beam assembly (13), and the front end plate of the water tank column assembly (116) is screwed and installed through the installation plate (133) to realize the installation connection between the front longitudinal beam assembly (11) and the front anti-collision beam assembly (13).

4. The vehicle body front cabin frame assembly (1) according to claim 3, characterized in that: The vehicle body front cabin frame assembly (1) also includes a front panel assembly (14), wherein the front panel assembly (14) is arranged above the front panel lower baffle assembly (12), and the front panel assembly (14) includes a front panel (141) and a front panel inner cross beam (142), wherein the front panel (141) is welded to the front panel inner cross beam (142), wherein the front panel inner cross beam (142) is welded to the longitudinal beam rear upper connecting plate (1141), and the front panel (141) is welded to the front panel lower baffle assembly (12).

5. The vehicle body front cabin frame assembly (1) according to claim 4, characterized in that: The vehicle body front cabin frame assembly (1) also includes a front dash panel assembly (15), the front dash panel assembly (15) being arranged above the front dash panel assembly (14) and being respectively welded to the front dash panel assembly (14) and the front shock tower assembly (113), the front dash panel assembly (15) including a windshield lower crossbeam assembly (151) and a front water trough assembly (152), the windshield lower crossbeam assembly (151) being welded to the front water trough assembly (152) and forming a first angle with the water trough assembly.

6. The vehicle body front cabin frame assembly (1) according to claim 5, characterized in that: The vehicle body front cabin frame assembly (1) also includes an A-pillar inner panel assembly (16), which is arranged on the side of the front panel assembly (14) and is respectively welded to the front panel assembly (14), the front panel lower baffle assembly (12), the front panel upper cover assembly (15), the front shock tower assembly (113) and the front side beam inner panel.

7. The vehicle body front cabin frame assembly (1) according to claim 2, characterized in that: The front lower torque box assembly (115) is provided with a subframe mounting point (1151), a battery pack mounting point (1152) and a vehicle body main positioning point (1153), and / or, The front enclosure lower baffle assembly (12) comprises a front enclosure lower baffle (121), the front enclosure lower baffle (121) being a through-type integrated structure, and a middle channel front reinforcement plate (122) and a battery pack cooling water pipe joint bracket (123) being provided on the front enclosure lower baffle (121).

8. The vehicle body front cabin frame assembly (1) according to claim 4, characterized in that: The front enclosure inner cross beam (142) comprises a first sub-cross beam (1421) and a second sub-cross beam (1422), and the first sub-cross beam (1421) and the second sub-cross beam (1422) are welded and connected.

9. The vehicle body front cabin frame assembly (1) according to claim 5, characterized in that: The front cowl upper cover plate assembly (15) further comprises a front cowl upper connecting plate (153), a reinforcing support plate (154) and a mounting bracket (155); the front cowl upper connecting plate (153), the reinforcing support plate (154) and the mounting bracket (155) are respectively welded to the water trough assembly; The water trough assembly comprises a water trough plate (1521) and a water trough crossbeam reinforcement plate (1522); the water trough plate (1521) and the water trough reinforcement plate are welded and connected; and an air inlet sealing plate (1523) is provided on the water trough plate (1521).

10. The vehicle body front cabin frame assembly (1) according to claim 6, characterized in that: The A-pillar inner panel assembly (16) comprises an A-pillar inner panel (161), an A-pillar joint reinforcement plate (162), a front wall cross beam joint reinforcement plate (163) and a door sill joint reinforcement plate (164); the A-pillar inner panel (161) is respectively welded to the A-pillar joint reinforcement plate (162), the front wall cross beam joint reinforcement plate (163) and the door sill joint reinforcement plate (164).

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