Novel stamping and welding front auxiliary frame
By adopting new stamping welding technology in the front subframe, the design of structures including longitudinal beams, cross beams, reinforcement plates and swing arm front brackets is solved, and the problem of insufficient rigidity of the traditional front subframe is achieved, which significantly improves dynamic stiffness and improves NVH performance.
Patent Information
- Application Number
- CN202421689718.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-07-17
AI Technical Summary
Due to the support structure, the stiffness of the swing arm front point of the traditional front subframe is difficult to meet the market requirements, especially in terms of the dynamic stiffness performance of NVH, which needs to meet the market requirements in each frequency range.
Using new stamping welding technology, a structure including longitudinal beams, transverse beams, reinforcement plates and swing arm front support is designed. The reinforcement plates are welded below the swing arm front support and fixed on the longitudinal beam to form a "U" shape structure to enhance local stiffness.
Through the new overlap combination method, the local structure is strengthened and the dynamic stiffness is significantly improved, which greatly improves the dynamic stiffness in front of the swing arm, which is better in the dynamic stiffness performance of NVH and the dynamic stiffness curve is improved.
Smart Images
Figure CN222742773U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobiles, in particular to a novel stamping and welding front auxiliary frame. Background Art
[0002] With the development of economy, automobiles have gradually become an important means of transportation for the public. The structure of automobiles is complex, including multiple parts such as front subframes. The front subframe in an automobile is the skeleton of the front and rear axles, used to support the front and rear axles, and can block the vibration or noise generated when the car is running. There are many kinds of front subframes on the market;
[0003] However, in the traditional front subframe, the front point of the swing arm may not meet the market requirements due to the support structure, especially in terms of NVH dynamic stiffness performance. The dynamic stiffness curve needs to meet the market requirements in each frequency range.
[0004] Therefore, we propose a novel stamping and welding front subframe to solve the above problems. Utility Model Content
[0005] The purpose of the utility model is to provide a novel stamped and welded front subframe to solve the problem raised in the above background technology that the front point of the swing arm in the current front subframe may not meet the market requirements in stiffness due to the support structure, especially in terms of NVH dynamic stiffness performance, and the dynamic stiffness curve needs to meet the market requirements in each frequency range.
[0006] To achieve the above purpose, the utility model provides the following technical solutions: a new stamping and welding front subframe, comprising:
[0007] A longitudinal beam, a cross beam being installed at the right end of the longitudinal beam;
[0008] Also includes:
[0009] The reinforcing plate is fixed on the front bracket of the swing arm, and the longitudinal section of the front bracket of the swing arm is a "U"-shaped structure.
[0010] Preferably, the longitudinal beams are symmetrically distributed front and back on the transverse beam.
[0011] Preferably, a swing arm front bracket is integrally provided on the outer side of the longitudinal beam, and the swing arm front bracket is symmetrically distributed on the left and right.
[0012] Preferably, the reinforcement plate is welded below the front bracket of the swing arm, and the inner end of the reinforcement plate is fixed on the longitudinal beam.
[0013] Compared with the prior art, the utility model has the following beneficial effects: the new stamped and welded front subframe adopts a new overlap combination method, the local structure is strengthened, the dynamic stiffness is improved, the dynamic stiffness of the front point of the swing arm is greatly improved, the dynamic stiffness performance of NVH is better, and the dynamic stiffness curve is improved;
[0014] 1. A swing arm front bracket and a reinforcement plate are provided. The swing arm front brackets are fixed symmetrically on the longitudinal beam, and a reinforcement plate is fixed below the swing arm front bracket. A new overlap combination method is adopted, the local structure is strengthened, and the dynamic stiffness is improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0016] Figure 2 This is a schematic diagram of the top view structure of the utility model;
[0017] Figure 3 This is a schematic diagram of the structure of the utility model when viewed from above;
[0018] Figure 4 This is a schematic diagram of the overall structure of the front bracket and the reinforcing plate of the swing arm of the utility model;
[0019] Figure 5 This is a schematic diagram of the rear structure of the swing arm front bracket and the reinforcement plate connected to the utility model;
[0020] Figure 6 It is a front view structural schematic diagram of the utility model.
[0021] In the figure: 1. longitudinal beam; 2. front bracket of swing arm; 3. reinforcement plate; 4. cross beam. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] See also Figure 1-6 , the utility model provides a technical solution:
[0024] Specific embodiment 1, in order to solve the problems existing in the prior art, this embodiment adopts the following technical scheme, a new type of stamped and welded front subframe, including: a longitudinal beam 1, a cross beam 4 is installed on the right end of the longitudinal beam 1; and also includes: a reinforcing plate 3, the reinforcing plate 3 is fixed on the swing arm front bracket 2, and the longitudinal section of the swing arm front bracket 2 is a "U"-shaped structure, the longitudinal beam 1 is symmetrically distributed front and back on the cross beam 4, the outer side of the longitudinal beam 1 is integrated with the swing arm front bracket 2, and the swing arm front bracket 2 is symmetrically distributed left and right, the reinforcing plate 3 is welded below the swing arm front bracket 2, and the inner end of the reinforcing plate 3 is fixed on the longitudinal beam 1.
[0025] Specific embodiment 2, in the existing automobile front subframe, the front point of the swing arm may not meet the market requirements in stiffness due to the bracket structure. A longitudinal beam 1 is installed on the left side of the crossbeam 4, and then the front swing arm bracket 2 is welded to the longitudinal beam 1, so that the upper and lower flanges of the front swing arm bracket 2 are welded to the longitudinal beam 1, and then a reinforcement plate 3 is welded under the front swing arm bracket 2, and the inner end of the reinforcement plate 3 is welded to the longitudinal beam 1, so as to strengthen the local structure and improve the dynamic stiffness. The dynamic stiffness of the front point of the swing arm is greatly improved, the dynamic stiffness performance of NVH is better, and the dynamic stiffness curve is improved. The swing arm is installed on the front swing arm bracket 2 to ensure the stability of the vehicle during driving and avoid looseness.
[0026] This is the entire working process of the novel stamping and welding front subframe. The contents not described in detail in this specification belong to the prior art known to professionals in this field.
[0027] The standard parts used in the utility model can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt the conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.
[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
Claims
1. A new stamping and welding front subframe, comprising: A longitudinal beam (1), wherein a cross beam (4) is mounted on the right end of the longitudinal beam (1); It is characterized by further comprising: A reinforcing plate (3), wherein the reinforcing plate (3) is fixed on the swing arm front bracket (2), and the longitudinal section of the swing arm front bracket (2) is a "U"-shaped structure.
2. According to claim 1, the novel stamping and welding front subframe is characterized in that: The longitudinal beams (1) are symmetrically distributed front and back on the cross beam (4).
3. The novel stamping and welding front subframe according to claim 1 is characterized in that: A swing arm front bracket (2) is integrally provided on the outer side of the longitudinal beam (1), and the swing arm front bracket (2) is symmetrically distributed on the left and right.
4. The novel stamping and welding front subframe according to claim 1 is characterized in that: The reinforcing plate (3) is welded below the swing arm front bracket (2), and the inner end of the reinforcing plate (3) is fixed on the longitudinal beam (1).