Automobile rear auxiliary frame assembly

Abstract

The utility model discloses an automobile rear auxiliary frame assembly which comprises a front cross beam assembly and a rear cross beam assembly which are arranged in the length direction of an automobile, the front cross beam assembly and the rear cross beam assembly are arranged in parallel in a spaced mode, and side beam assemblies are symmetrically arranged between the front cross beam assembly and the rear cross beam assembly which are arranged in parallel in a spaced mode. End plates are fixedly connected to the two ends of the symmetrically-arranged side beam assemblies, mounting holes are symmetrically formed in the inner side surfaces of the front cross beam assembly and the rear cross beam assembly, the mounting holes are aligned to one ends of the side beam assemblies, mounting grooves are symmetrically formed in the mounting holes, and the mounting grooves are aligned to the end plates. Mounting components are arranged on the upper surfaces of the front cross beam assembly and the rear cross beam assembly, and mounting heads are symmetrically arranged at the two ends of the front cross beam assembly and the rear cross beam assembly. The problem that the front beam, the rear beam, the left beam and the right beam of a traditional frame are not welded in place is solved, the situation that cracks are prone to occurring at the welding positions of the frame in the later use process is avoided, the overall strength of the frame is improved, and meanwhile the safety of a vehicle is improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle frame assembly technology, specifically to a rear subframe assembly for automobiles. Background Technology

[0002] The subframe can be seen as the skeleton of the front and rear axles, and is a component of the front and rear axles. The subframe is not a complete frame, but rather a support structure that holds the front and rear axles and suspension together, connecting them to the main frame. Its function is to isolate vibrations and noise, reducing their direct entry into the passenger compartment. Therefore, it is mostly found in luxury sedans and SUVs, and some cars even have subframes for their engines. In traditional monocoque chassis without a subframe, the suspension is directly connected to the body panels. Therefore, the suspension rocker arm mechanisms of the front and rear axles are separate components, not assemblies. With the advent of the subframe, the front and rear suspensions can be assembled onto the subframe to form an axle assembly, which is then installed onto the vehicle body.

[0003] Currently, most automotive rear subframes are welded. During the welding process, welding is usually done along the edges of the frame joints, making it difficult to ensure that the front and rear crossbeams and left and right longitudinal beams are welded properly. As a result, cracks are prone to appear at the welded locations during later use, and the strength of the frame cannot be guaranteed, reducing the safety of the vehicle. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a rear subframe assembly for automobiles, which solves the problem of inadequate welding between the front and rear beams and the left and right beams of the traditional frame, and avoids the possibility of cracks appearing at the welding points of the frame during later use. Therefore, it improves the overall strength of the frame and also improves the safety of the vehicle.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rear subframe assembly for automobiles, comprising a front crossbeam assembly and a rear crossbeam assembly arranged along the length of the vehicle, wherein the front crossbeam assembly and the rear crossbeam assembly are arranged in parallel and spaced apart. Side beam assemblies are symmetrically arranged between the parallel and spaced front crossbeam assemblies and the symmetrically arranged side beam assemblies, and end plates are fixedly connected to both ends of the side beam assemblies. Mounting holes are symmetrically opened on the inner surfaces of the front crossbeam assembly and the mounting holes are aligned with one end of the side beam assembly. Mounting grooves are symmetrically opened inside the mounting holes, and the mounting grooves are aligned with the end plates. Mounting components are provided on the upper surfaces of the front crossbeam assembly and the rear crossbeam assembly, and mounting heads are symmetrically provided at both ends of the front crossbeam assembly and the rear crossbeam assembly.

[0006] Preferably, the mounting assembly includes symmetrically arranged mounting side plates, and a reinforcing plate is fixedly connected to the inner surface of the mounting side plates. A top block is fixedly connected to the inner surface of the reinforcing plate, and the mounting side plates, the top block, and the reinforcing plate are all fixedly connected to the upper surfaces of the front crossbeam assembly and the rear crossbeam assembly.

[0007] Preferably, both ends of the front crossbeam assembly and the rear crossbeam assembly are symmetrically provided with base plates, and one side surface of the base plate is fixedly connected with a plug block, and the side surface of the base plate is welded to the inner wall of the front crossbeam assembly and the rear crossbeam assembly.

[0008] Preferably, a positioning block is fixedly connected to the inner surface of one end of the mounting head, and a circular hole is opened inside the positioning block, the circular hole being aligned with the insertion block.

[0009] Preferably, the mounting head has mounting holes inside, and reinforcing ribs are fixedly connected to the inner surface of the mounting holes. Reinforcing plates are symmetrically provided on one side of the reinforcing ribs, and the reinforcing plates are fixedly connected to the inner wall of the mounting head.

[0010] Preferably, a mounting component is fixedly connected to the outer surface of one end of the side beam assembly, and the mounting component has a circular hole inside.

[0011] This utility model provides a rear subframe assembly for automobiles. Compared with the prior art, it has the following advantages:

[0012] 1. By using the mounting holes and mounting grooves inside the front and rear crossbeam assemblies to cooperate with the end plates fixedly connected to both ends of the side beam assembly, the problem of inadequate welding between the front and rear beams and the left and right beams of the traditional frame is solved. This also avoids cracks in the welded positions of the frame during later use, thus improving the overall strength of the frame and the safety of the vehicle.

[0013] 2. The mounting head's installation stability is improved by the cooperation between the base plates installed inside both ends of the front and rear crossbeam assemblies and the plug-in blocks fixedly connected to one side of the base plates, and the positioning blocks fixedly connected to one end of the mounting head and the round holes inside the positioning blocks. This further enhances the overall robustness of the frame assembly. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a structural schematic diagram of the side beam assembly in this utility model;

[0016] Figure 3 This is a schematic diagram of the front crossbeam assembly in this utility model;

[0017] Figure 4This is a schematic diagram of the mounting head in this utility model.

[0018] In the diagram: 1. Front crossbeam assembly; 101. Mounting hole I; 102. Mounting groove; 2. Mounting head; 201. Mounting hole II; 202. Reinforcing plate I; 203. Reinforcing rib; 204. Positioning block; 205. Round hole; 3. Base plate; 301. Insertion block; 4. Side beam assembly; 401. Mounting component; 402. End plate; 5. Rear crossbeam assembly; 6. Mounting side plate; 601. Top block; 602. Reinforcing plate II. Detailed Implementation

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

[0020] Please see Figure 1-4 This utility model provides a technical solution: a rear subframe assembly for an automobile, including a front crossbeam assembly 1 and a rear crossbeam assembly 5 arranged along the length of the vehicle. The front crossbeam assembly 1 and the rear crossbeam assembly 5 are arranged in parallel and spaced apart. Side beam assemblies 4 are symmetrically arranged between the parallel and spaced front crossbeam assembly 1 and the rear crossbeam assembly 5. End plates 402 are fixedly connected to both ends of the symmetrically arranged side beam assemblies 4. Mounting holes I101 are symmetrically opened on the inner surface of the front crossbeam assembly 1 and the rear crossbeam assembly 5. The mounting holes I101 are aligned with one end of the side beam assembly 4. Mounting grooves 102 are symmetrically opened inside the mounting holes I101. The mounting grooves 102 are aligned with the end plates 402. Mounting components are provided on the upper surface of the front crossbeam assembly 1 and the rear crossbeam assembly 5. Mounting heads 2 are symmetrically provided at both ends of the front crossbeam assembly 1 and the rear crossbeam assembly 5.

[0021] As a technical optimization of this utility model, the mounting assembly includes symmetrically arranged mounting side plates 6. A reinforcing plate II 602 is fixedly connected to the inner surface of the mounting side plate 6. A top block 601 is fixedly connected to the inner surface of the reinforcing plate II 602. The mounting side plate 6, the top block 601 and the reinforcing plate II 602 are all fixedly connected to the upper surfaces of the front crossbeam assembly 1 and the rear crossbeam assembly 5. The mounting side plate 6 facilitates the installation of the front crossbeam assembly 1 and the rear crossbeam assembly 5 to the bottom of the car.

[0022] As a technical optimization of this utility model, both ends of the front crossbeam assembly 1 and the rear crossbeam assembly 5 are symmetrically provided with base plates 3. A plug-in block 301 is fixedly connected to one side surface of the base plate 3. The side surface of the base plate 3 is welded to the inner wall of the front crossbeam assembly 1 and the rear crossbeam assembly 5. A positioning block 204 is fixedly connected to the inner surface of one end of the mounting head 2. A round hole 205 is opened inside the positioning block 204. The round hole 205 is aligned with the plug-in block 301. The positioning block 204 and the round hole 205 cooperate with the plug-in block 301 fixedly connected to one side surface of the base plate 3, thereby improving the installation stability of the mounting head 2.

[0023] As a technical optimization of this utility model, the mounting head 2 has a mounting hole II 201 inside. The inner surface of the mounting hole II 201 is fixedly connected with a reinforcing rib 203. A reinforcing plate I 202 is symmetrically provided on one side of the reinforcing rib 203. The reinforcing plate I 202 is fixedly connected to the inner wall of the mounting head 2. The stability of the mounting head 2 can be enhanced by the reinforcing plate I 202 and the reinforcing rib 203.

[0024] As a technical optimization of this utility model, a mounting component 401 is fixedly connected to the outer surface of one end of the side beam assembly 4, and a round hole is opened inside the mounting component 401.

[0025] In use, the end plates 402 at both ends of the side beam assembly 4 are first inserted into the mounting groove 102. Then, the connection between the end plates 402 and the mounting groove 102 is welded using a welding machine. Next, the connection between the side beam assembly 4 and the front crossbeam assembly 1 and the rear crossbeam assembly 5 is welded. This improves the rigidity of the frame assembly. Then, the bottom plate 3 is inserted into the inner walls of both ends of the front crossbeam assembly 1 and the rear crossbeam assembly 5. The sides of the bottom plate 3 are then welded. Next, the mounting head 2 is inserted into the interior of both ends of the front crossbeam assembly 1 and the rear crossbeam assembly 5 through the positioning block 204 and the round hole 205. Then, the mounting head 2 is welded. At this point, the frame assembly is assembled.

[0026] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rear subframe assembly for an automobile, comprising a front crossbeam assembly (1) and a rear crossbeam assembly (5) arranged along the length of the vehicle, characterized in that: The front crossbeam assembly (1) and the rear crossbeam assembly (5) are arranged in parallel intervals. Side beam assemblies (4) are symmetrically arranged between the parallel-interval front crossbeam assembly (1) and the rear crossbeam assembly (5). Both ends of the symmetrically arranged side beam assemblies (4) are fixedly connected to end plates (402). The inner surfaces of the front crossbeam assembly (1) and the rear crossbeam assembly (5) are symmetrically provided with mounting holes I (101). The mounting holes I (101) are aligned with one end of the side beam assembly (4). The interior of the mounting holes I (101) is symmetrically provided with mounting grooves (102). The mounting grooves (102) are aligned with the end plates (402). The upper surfaces of the front crossbeam assembly (1) and the rear crossbeam assembly (5) are provided with mounting components. Both ends of the front crossbeam assembly (1) and the rear crossbeam assembly (5) are symmetrically provided with mounting heads (2).

2. The automotive rear subframe assembly according to claim 1, characterized in that: The mounting assembly includes symmetrically arranged mounting side plates (6), and a reinforcing plate II (602) is fixedly connected to the inner surface of the mounting side plates (6). A top block (601) is fixedly connected to the inner surface of the reinforcing plate II (602), and the mounting side plates (6), the top block (601) and the reinforcing plate II (602) are all fixedly connected to the upper surfaces of the front crossbeam assembly (1) and the rear crossbeam assembly (5).

3. The automotive rear subframe assembly according to claim 1, characterized in that: Both ends of the front crossbeam assembly (1) and the rear crossbeam assembly (5) are symmetrically provided with base plates (3), and one side surface of the base plate (3) is fixedly connected with a plug block (301). The side surface of the base plate (3) is welded to the inner wall of the front crossbeam assembly (1) and the rear crossbeam assembly (5).

4. The automotive rear subframe assembly according to claim 1, characterized in that: A positioning block (204) is fixedly connected to the inner surface of one end of the mounting head (2), and a round hole (205) is opened inside the positioning block (204). The round hole (205) is aligned with the plug-in block (301) and plugged in for pre-positioning of the mounting head (2). After the mounting head (2) is pre-positioned, it is welded and fixed to the front crossbeam assembly (1) and the rear crossbeam assembly (5).

5. The automotive rear subframe assembly according to claim 1, characterized in that: The mounting head (2) has a mounting hole II (201) inside, and a reinforcing rib (203) is fixedly connected to the inner surface of the mounting hole II (201). A reinforcing plate I (202) is symmetrically provided on one side of the reinforcing rib (203), and the reinforcing plate I (202) is fixedly connected to the inner wall of the mounting head (2).

6. The automotive rear subframe assembly according to claim 1, characterized in that: The side beam assembly (4) has a mounting component (401) fixedly connected to the outer surface of one end, and the mounting component (401) has a round hole inside.

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