All-aluminum lightweight and integrated frame structure

Abstract

The invention relates to the technical field of automobile frames, in particular to an all-aluminum lightweight and integrated frame structure. The front anti-collision beam assembly is arranged at the front end, the front cross beam assembly is connected with the front anti-collision beam assembly, the right longitudinal beam assembly and the left longitudinal beam assembly are arranged on the two sides of the front cross beam assembly respectively, and the two sides of the middle floor cross beam assembly are connected with the right longitudinal beam assembly and the left longitudinal beam assembly respectively. The rear cross beam assembly is connected with the middle floor cross beam assembly; and the functional connecting part assemblies are respectively arranged at different parts. The novel steel frame has the beneficial effects that the novel steel frame is manufactured and combined by adopting a novel process and materials, the weight of the novel steel frame can be reduced by 30% compared with that of a traditional steel frame, and the sustainable development of light weight of a new energy logistics vehicle is further promoted.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile frames, and in particular to an all-aluminum lightweight and integrated frame structure. Background Art

[0002] With the rapid development of the logistics industry and the increase in the penetration rate of new energy vehicles, lightweight, integrated, modular and platform technologies are the general trend of the development of the automotive industry. It is not only the common choice of domestic and foreign automobile companies to cope with energy and environmental challenges, but also the main path for the sustainable development of the automotive industry.

[0003] As an important branch of new energy vehicles, new energy logistics vehicles have rapidly emerged and become a new growth point in the industry, but they still face many pain points and challenges, such as lack of technological innovation, low cruising range, high cost, the need to improve the safety and reliability of the vehicle body, and the need to optimize the convenience of cargo space.

[0004] Therefore, it is necessary to design an all-aluminum lightweight and integrated frame structure to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide an all-aluminum lightweight and integrated frame structure to overcome the above-mentioned deficiencies in the current prior art.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A fully aluminum lightweight and integrated vehicle frame structure, comprising a front anti-collision beam assembly disposed at a front end, a front cross beam assembly interconnected with the front anti-collision beam assembly, a right longitudinal beam assembly and a left longitudinal beam assembly disposed on both sides of the front cross beam assembly, respectively, a middle floor cross beam assembly connected to the right longitudinal beam assembly and the left longitudinal beam assembly on both sides, a rear cross beam assembly connected to the middle floor cross beam assembly, and functional connection parts assemblies disposed at different locations, wherein the front anti-collision beam assembly, the front cross beam assembly, the right longitudinal beam assembly, the left longitudinal beam assembly, the middle floor cross beam assembly, and the rear cross beam assembly are assembled into a vehicle frame main body frame by means of screwing or riveting.

[0008] Preferably, the front anti-collision beam assembly includes an anti-collision beam, energy absorption boxes arranged on both sides of the anti-collision beam, connecting plates respectively connected to the energy absorption boxes on both sides, and longitudinal beams respectively connected to the connecting plates; the interior of the longitudinal beam has a profile with a Japanese-shaped cross-section, the energy absorption box is installed with both ends of the anti-collision beam through a threaded connection, and the connecting plate is fixed to the end of the energy absorption box by bolts for matching the longitudinal beam connection.

[0009] Preferably, a front middle section connection structure is provided between the longitudinal beam and the front cross beam assembly, and the front middle section connection structure is composed of connection plates which are connected by multiple groups of blind rivets.

[0010] Preferably, an integrated three-way multi-cavity thin-wall high-pressure casting connection structure for strengthening the connection is respectively provided between the middle floor crossbeam assembly and the right longitudinal beam assembly and the left longitudinal beam assembly.

[0011] Preferably, the rear cross beam assembly includes a side body profile, L-shaped connectors respectively arranged at both ends of the side body profile, and two groups of L-shaped connectors are respectively arranged at one end, and the two groups are arranged opposite to each other, and the L-shape is arranged outward, the side body profile adopts a special-shaped cross-section, and the overall structure of the profile cross-section is L-shaped.

[0012] Preferably, the functional connecting parts assembly includes shock absorber supports placed on both sides of the front middle section connecting structure, cab connecting brackets respectively arranged on the sides of the left longitudinal beam assembly, the right longitudinal beam assembly and the front cross beam assembly, the middle connecting castings of the cargo box respectively arranged on the sides of the left longitudinal beam assembly 1 and the right longitudinal beam assembly, and the rear connecting castings of the cargo box arranged on both sides of the rear cross beam assembly.

[0013] Preferably, a functional crossbeam assembly is also installed on the main frame of the frame, including a front cabin crossbeam assembly installed on the front anti-collision beam assembly of the main frame of the frame for cooperating with the engine and other parts installation group, a seat installation crossbeam assembly placed on both sides of the front crossbeam assembly for cooperating with the installation of car seats, etc., a four-in-one control installation crossbeam assembly for installation in cooperation with electrical components, and a spare tire installation crossbeam assembly for storing parts inside the spare tire.

[0014] The beneficial effects of the present invention are as follows: the technical solution is manufactured and combined using new processes and materials, which can achieve a 30% weight reduction compared to traditional steel frames, increase the vehicle's endurance by 10%, increase the vehicle's bending stiffness by 20%, and increase the torsional stiffness by 10%, further promoting the sustainable development of lightweight new energy logistics vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an all-aluminum lightweight and integrated frame structure of the present invention;

[0016] Figure 2 A partial schematic diagram of a vehicle frame of an all-aluminum lightweight and integrated vehicle frame structure according to the present invention;

[0017] Figure 3 A schematic diagram of a rear crossbeam assembly of an all-aluminum lightweight and integrated vehicle frame structure according to the present invention;

[0018] Figure 4This is the frame functional crossbeam assembly of an all-aluminum lightweight and integrated frame structure of the present invention;

[0019] Figure 5 This is the frame functional connecting loose part assembly of an all-aluminum lightweight and integrated frame structure of the present invention;

[0020] In the figure: 1 - left longitudinal beam assembly; 2 - right longitudinal beam assembly; 3 - front anti-collision beam assembly; 4 - front crossbeam assembly; 5 - middle floor crossbeam assembly; 6 - rear crossbeam assembly; 7 - front middle section connecting structure; 8 - integrated three-way multi-chamber thin-walled high-pressure casting connecting structure; 9 - anti-collision beam body; 10 - energy-absorbing box; 11 - connecting plate; 12 - side body profile; 13 - L-shaped connecting piece; 14 - shock absorber support; 15 - cab connecting bracket; 16 - cargo box middle connecting casting; 17 - cargo box tail connecting casting. Specific embodiments

[0021] Refer to Figures 1 to 5 , an all-aluminum lightweight and integrated frame structure, which includes a front anti-collision beam assembly 3 placed at the front end, a front crossbeam assembly 4 connected to the front anti-collision beam assembly 3, a right longitudinal beam assembly 2 and a left longitudinal beam assembly 1 respectively placed on both sides of the front crossbeam assembly 4, a middle floor crossbeam assembly 5 connected to the right longitudinal beam assembly 2 and the left longitudinal beam assembly 1 on both sides respectively, a rear crossbeam assembly 6 connected to the middle floor crossbeam assembly 5, and the functional connecting loose part assemblies respectively arranged at different positions. The front anti-collision beam assembly 3, the front crossbeam assembly 4, the right longitudinal beam assembly 2, the left longitudinal beam assembly 1, the middle floor crossbeam assembly 5, and the rear crossbeam assembly 6 are spliced and assembled into a frame main body frame through screwing or riveting. The frame main body frame uses a new type of high-strength and tough aluminum alloy material, and its performance has a significant improvement of more than 30% compared with traditional aluminum alloy materials, and the application ratio exceeds 80%, realizing a weight reduction of 30% compared with traditional steel frames.

[0022] The front anti-collision beam assembly 3 includes an anti-collision beam 9, energy-absorbing boxes 10 arranged on both sides of the anti-collision beam 9, connecting plates 11 respectively cooperating with the energy-absorbing boxes 10 on both sides for connection, and longitudinal beams respectively connected to the connecting plates 11; the longitudinal beam is a profile with a daily-shaped cross-section inside. The energy-absorbing box 10 is installed at both ends of the anti-collision beam 9 through threaded connection, and the connecting plate 11 is fixedly installed at the end of the energy-absorbing box 10 by bolts for cooperating with the longitudinal beam for connection;

[0023] In order to improve stability and ensure the strength of installation, a front middle section connection structure 7 is provided between the longitudinal beam and the front cross beam assembly 4. The front middle section connection mechanism is composed of a connection plate connected by multiple sets of blind rivets. The three sections of the frame longitudinal beam assembly are integrated by multiple sets of bolts. Since the front section needs to be installed with other accessories such as the engine, it is necessary to adopt a splicing mechanism to strengthen the connection, facilitate installation with other brackets and components, and reserve the installation position in advance to facilitate later installation. Extrusion and rolling processes are adopted to meet the requirements of crash resistance and lightweight of the anti-collision beam.

[0024] The main structures of the frame longitudinal beam assembly, cross beam assembly and anti-collision beam assembly are all formed by aluminum alloy extrusion molding technology, which is processed and formed in one go, reducing the processing steps and improving the efficiency. The segmented processing facilitates the later assembly.

[0025] In order to further improve the strength and stability, an integrated three-way multi-cavity thin-wall high-pressure casting connection structure 8 for strengthening the connection is respectively provided between the middle floor crossbeam assembly 5 and the right longitudinal beam assembly 2 and the left longitudinal beam assembly 1;

[0026] The rear cross beam assembly 6 includes a side body profile 12, L-shaped connectors 13 respectively arranged at both ends of the side body profile 12, and two groups of L-shaped connectors 13 are respectively arranged at one end, and the two groups are arranged opposite to each other, and the L-shape is arranged outward, and the L-shaped connector 13 is fixed to the side body profile 12 by rivets, and the side body profile 12 adopts a special-shaped cross section, and the overall structure of the profile cross section is L-shaped, and internal threaded aluminum sleeves are respectively integrated on both sides of the profile, and are riveted and integrated with the rear end of the frame longitudinal beam assembly through the L-shaped connector;

[0027] The functional connection parts assembly includes shock absorber supports 14 placed on both sides of the front middle section connection structure, cab connection brackets 15 respectively arranged on the sides of the left longitudinal beam assembly 1, the right longitudinal beam assembly 2 and the front cross beam assembly, cargo box middle connection castings 16 respectively arranged on the sides of the left longitudinal beam assembly 1 and the right longitudinal beam assembly 2, and cargo box tail connection castings 17 arranged on both sides of the rear cross beam assembly. The shock absorber support is made of CHP30 and adopts an aluminum alloy high-pressure casting process. It is integrated and installed on the outer side of the front section of the frame longitudinal beam assembly through FDS. Specifically, the bracket casting and the connection casting are made of CHS270 and adopt an aluminum alloy extrusion casting process. They are vertically installed with the cab and the cargo box through bolts, and are integrated and installed on the outer side of the middle and rear sections of the frame longitudinal beam assembly through screw connection;

[0028] In order to facilitate the installation of different automobile accessories, a functional crossbeam assembly is also installed on the main frame of the frame, including a front cabin crossbeam assembly for installation on the front anti-collision beam assembly 3 of the main frame of the frame to cooperate with the engine and other parts installation group, a seat installation crossbeam assembly placed on both sides of the front crossbeam assembly for installation with automobile seats, a four-in-one control installation crossbeam assembly for installation with electrical components, and a spare tire installation crossbeam assembly for storing parts in the spare tire; the above profiles used in combination are of a Japanese shape and a rectangular cross-section, and are integrated with U-shaped nut plates, rivet nuts, and internally threaded aluminum sleeves, specifically providing installation positions for front cabin crossbeams, seats, electrical components, spare tires and other parts, and are integrated with the frame longitudinal beam assembly through MIG welding.

[0029] The present invention is all modular materials. First, the left longitudinal beam assembly, the right longitudinal beam assembly, the front anti-collision beam assembly, the front cross beam assembly, the middle floor cross beam assembly, and the rear cross beam assembly are screwed or riveted into a single group to form their own module units.

[0030] The left longitudinal beam assembly, the right longitudinal beam assembly, the front anti-collision beam assembly, the front cross beam assembly, the middle floor cross beam assembly, and the rear cross beam assembly, which constitute the respective module units, are screwed and riveted to form a vehicle frame main frame;

[0031] Then, as needed, the functional crossbeam assembly and functional connecting parts assembly of the frame are connected to the main frame of the frame through welding, screwing, and FDS to form an integrated assembly structure of the all-aluminum alloy frame, thereby quickly completing the assembly.

[0032] The benefits of the present invention are that the technical solution is manufactured and combined using new processes and materials, which can achieve a 30% weight reduction compared to traditional steel frames, increase the vehicle's endurance by 10%, increase the vehicle's bending stiffness by 20%, and increase the torsional stiffness by 10%, further promoting the sustainable development of lightweight new energy logistics vehicles.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An all-aluminum lightweight and integrated frame structure, characterized by: It includes a front anti-collision beam assembly arranged at the front end, a front cross beam assembly interconnected with the front anti-collision beam assembly, a right longitudinal beam assembly and a left longitudinal beam assembly respectively arranged on both sides of the front cross beam assembly, a middle floor cross beam assembly respectively connected to the right longitudinal beam assembly and the left longitudinal beam assembly on both sides, a rear cross beam assembly connected to the middle floor cross beam assembly and the functional connection parts assemblies respectively arranged at different positions. The front anti-collision beam assembly, the front cross beam assembly, the right longitudinal beam assembly, the left longitudinal beam assembly, the middle floor cross beam assembly and the rear cross beam assembly are spliced ​​and assembled into a vehicle frame main body frame by screwing or riveting.

2. The all-aluminum lightweight and integrated frame structure according to claim 1, characterized in that: The front anti-collision beam assembly includes an anti-collision beam, energy absorption boxes arranged on both sides of the anti-collision beam, connecting plates respectively connected to the energy absorption boxes on both sides, and longitudinal beams respectively connected to the connecting plates; the interior of the longitudinal beam has a profile with a Japanese-shaped cross-section, the energy absorption boxes are installed at both ends of the anti-collision beam through threaded connection, and the connecting plates are fixedly installed on the ends of the energy absorption boxes by bolts for matching the longitudinal beam connection.

3. The all-aluminum lightweight and integrated frame structure according to claim 1, characterized in that: A front middle section connection structure is provided between the longitudinal beam and the front cross beam assembly. The front middle section connection structure is composed of connection plates which are connected by multiple groups of blind rivets.

4. The all-aluminum lightweight and integrated frame structure according to claim 1, characterized in that: An integrated three-way multi-cavity thin-wall high-pressure casting connection structure for strengthening the connection is respectively arranged between the middle floor crossbeam assembly and the right longitudinal beam assembly and the left longitudinal beam assembly.

5. The all-aluminum lightweight and integrated frame structure according to claim 1, characterized in that: The rear cross beam assembly includes a side body profile, L-shaped connectors respectively arranged at both ends of the side body profile, and two groups of L-shaped connectors are respectively arranged at one end, and the two groups are arranged opposite to each other, and the L shape is arranged outward. The side body profile adopts a special-shaped cross-section, and the overall structure of the profile cross-section is L-shaped.

6. The all-aluminum lightweight and integrated frame structure according to claim 1, characterized in that: The functional connection parts assembly includes shock absorber supports placed on both sides of the front middle section connection structure, cab connection brackets respectively arranged on the sides of the left longitudinal beam assembly, the right longitudinal beam assembly and the front cross beam assembly, the middle connection castings of the cargo box respectively arranged on the sides of the left longitudinal beam assembly 1 and the right longitudinal beam assembly, and the rear connection castings of the cargo box arranged on both sides of the rear cross beam assembly.

7. The all-aluminum lightweight and integrated frame structure according to claim 1, characterized in that: A functional crossbeam assembly is also installed on the main frame of the frame, including a front cabin crossbeam assembly installed on the front anti-collision beam assembly of the main frame of the frame for cooperating with the engine and other parts installation group, a seat installation crossbeam assembly placed on both sides of the front crossbeam assembly for cooperating with the installation of car seats, etc., a four-in-one control installation crossbeam assembly for installation in cooperation with electrical components, and a spare tire installation crossbeam assembly for storing parts inside the spare tire.

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