Integrated control arm with closed section
Through the sheet metal stamping technology of the one-piece closed-section control arm, the problems of weld deformation and precision deviation caused by welding are solved, and high-precision and low-cost control arm manufacturing is achieved.
Patent Information
- Application Number
- CN202422930649.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-11-28
AI Technical Summary
The existing control arm is welded with multiple parts, which causes weld deformation and overall dimensional accuracy deviation. The welding process is costly and inefficient.
An integrated closed-section control arm is adopted, which is formed by integrally stamping the plate to form a closed-section cavity structure, eliminating welds, ensuring forming accuracy and improving structural strength.
It effectively avoids the problem of plate deformation caused by welding, ensures the forming accuracy and structural strength of the control arm, and reduces manufacturing difficulty and cost.
Smart Images
Figure CN223456764U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of automobile chassis parts, and specifically relates to an integrated closed cross section control arm. BACKGROUND
[0002] Suspension system is the connecting system between wheel, body and frame, including elastic element, guiding mechanism and shock absorber, and the control arm is one of the guiding mechanism elements. In the process of automobile driving, the wheel will certainly jump up and down and swing left and right due to the vibration caused by the change of road surface and the need of steering, and the force generated by the wheel movement will be transmitted to the body through the control arm, so the performance of the control arm will directly affect the safety, comfort and control stability of the automobile, so the control arm must have certain rigidity and reliability.
[0003] The existing control arm is formed by welding multiple parts, including two sleeves and at least two plates, the end of the two plates is welded on the surface of the sleeve, and the two plates are connected by welding, so that the total size precision deviation is caused by the welding seam deformation in the process of machining and manufacturing, and the welding process cost of the upper and lower plate buckling seam of the control arm is high and the efficiency is low. SUMMARY
[0004] The utility model intends to provide integrated closed cross section control arm, to solve the problem that the control arm of prior art adopts multiple parts assembly welding, and the total size precision deviation is caused by the welding seam deformation.
[0005] To achieve the above purpose, the utility model adopts the following technical scheme: the integrated closed cross section control arm includes an integrally formed control arm body, the control arm body includes arc-shaped first and second plate bodies with the same shape structure, the first and second plate bodies are arranged in parallel and opposite, a third plate body is connected between the inner arc edges of the first and second plate bodies, the first and second plate bodies are perpendicular to the third plate body, the outer arc edges of the first and second plate bodies are inwardly folded by 90 DEG to form baffles, and a gap is formed between the two baffles; the two ends of the first and second plate bodies are provided with mounting holes, the mounting holes of the first and second plate bodies are coaxial and equal in diameter, and the first and second plate bodies are inwardly folded by 90 DEG along the edge of the mounting hole to form a sleeve between the first and second plate bodies.
[0006] Preferably, as an improvement, the end of the first and second plate bodies is a circular arc edge with the same outer diameter, and the third plate body and the baffle are tangent to the circular arc edge.
[0007] Preferably, as an improvement, the third plate body is circularly arc transitioned between the first and second plate bodies.
[0008] Preferably, as an improvement, the baffle is circularly arc transitioned with the first plate body and the second plate body.
[0009] Preferably, as an improvement, the sleeve is circularly arc transitioned with the first plate body and the second plate body.
[0010] Preferably, as an improvement, the sleeve on the first plate body is left a gap with the sleeve on the second plate body.
[0011] Preferably, as an improvement, the first plate body and the second plate body are both planar plate bodies, and the third plate body and the baffle are both curved plate bodies.
[0012] The advantages of the present scheme include:
[0013] 1. The control arm body is integrally formed by stamping a plate material, thereby eliminating welds, avoiding plate deformation caused by welding processing, effectively ensuring the forming precision of the control arm, ensuring the structural strength of the control arm body, and effectively solving the problem of difficulty in controlling the size precision of the existing welded control arm.
[0014] 2. The first plate body and the second plate body are folded to form the baffle by stamping, and the third plate body is formed by bending stamping, so that a cavity structure close to a closed section is formed in the middle of the control arm body, the structural strength of the control arm body is improved, the overall forming process is better, the forming difficulty is reduced, and manufacturing is facilitated.
[0015] 3. The sleeve is integrally formed in the mounting hole by stamping, so that the sleeve does not need to be separately installed during use, thereby saving the cost of separately manufacturing and installing the traditional sleeve on the control arm body. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is an inner arc side axonometric view of the embodiment of the present application.
[0017] Figure 2 It is an outer arc side axonometric view of the embodiment of the present application. DETAILED DESCRIPTION
[0018] The following will be further described in detail through specific embodiments:
[0019] The reference signs in the drawings of the specification include: the first plate body 1, the second plate body 2, the third plate body 3, the baffle 4, the mounting hole 5, the sleeve 6, and the circular arc edge 7.
[0020] The embodiment is basically as shown in the accompanying drawings Figure 1 , Figure 2As shown: the integral closed cross-section control arm, including integrally formed control arm body, control arm body includes the same shape structure arc-shaped first plate body 1 and second plate body 2, first plate body 1, second plate body 2 are both plane plate body, first plate body 1 and second plate body 2 are arranged in parallel, the inner arc edge of first plate body 1, second plate body 2 is connected with third plate body 3, third plate body 3 is curved surface plate body. First plate body 1, second plate body 2 are perpendicular to third plate body 3, and the circular arc transition between third plate body 3 and first plate body 1, second plate body 2. The outer arc edge of first plate body 1, second plate body 2 is folded inward by 90 ° to form a baffle 4, a gap is formed between the two baffles 4, and the baffle 4 is a curved surface plate body. The baffle 4 and first plate body 1, second plate body 2 are circularly arc transition. The two ends of first plate body 1, second plate body 2 are provided with mounting holes 5, and the mounting holes 5 of first plate body 1, second plate body 2 are coaxial and equal in diameter. The sleeve 6 between first plate body 1 and second plate body 2 is formed by folding first plate body 1 and second plate body 2 along the edge of mounting hole 5 by 90 °, and the sleeve 6 and first plate body 1, second plate body 2 are circularly arc transition. The sleeve 6 on the first plate body 1 and the sleeve 6 on the second plate body 2 leave a gap.
[0021] The end of first plate body 1, second plate body 2 is the same diameter circular arc edge 7, and the third plate body 3 and the baffle 4 are tangent to the circular arc edge 7.
[0022] The specific implementation process is as follows: through stamping processing of the plate, the baffle 4 is formed by bending at the outer arc edge of first plate body 1 and second plate body 2, the third plate body 3 is formed between the inner arc edge of first plate body 1 and second plate body 2, and the sleeve 6 is formed at the mounting hole 5 on first plate body 1 and second plate body 2. The stamping control arm is integrally formed, and the middle part of the control arm is a cavity structure close to the closed cross section, which has high structural strength. Avoid the adverse effects of plate deformation caused by welding on the forming precision, the forming process is better, and the forming cost is lower. The sleeve 6 is integrally formed inside the mounting hole 5 at both ends of the control arm, without separately manufacturing and installing the sleeve 6, thereby saving the corresponding cost, avoiding the precision control in the installation process of the sleeve 6, and being more conducive to improving the precision of the control arm.
[0023] The above is only an embodiment of the present application, and the specific technical solutions and / or common knowledge of the scheme are not described in detail. It should be noted that for those skilled in the art, without departing from the technical scheme of the present application, a number of modifications and improvements can be made, which should be regarded as the protection scope of the present application. The protection scope of the present application should be subject to the content of its claims, and the specific implementation mode and the like in the specification can be used to explain the content of the claims.
Claims
1. A unitary closed cross-section control arm characterized by: The control arm body comprises a first plate body and a second plate body which are parallel and opposite to each other, and a third plate body which is connected between the inner arc edges of the first plate body and the second plate body, and the first plate body and the second plate body are perpendicular to the third plate body, the outer arc edges of the first plate body and the second plate body are folded inward by 90° to form baffles, and a gap is formed between the two baffles; the first plate body and the second plate body are both provided with mounting holes, the mounting holes of the first plate body and the second plate body are coaxial and have the same diameter, and the first plate body and the second plate body are folded inward by 90° along the edges of the mounting holes to form sleeves which are located between the first plate body and the second plate body.
2. The one-piece closed section control arm of claim 1, wherein: The end portions of the first plate body and the second plate body are circular arc edges with the same outer diameter, and the third plate body and the baffles are tangent to the circular arc edges.
3. The unitized closed section control arm of claim 2, wherein: The third plate body is circularly arcuate between the first plate body and the second plate body.
4. The unitized closed section control arm of claim 3, wherein: The baffles are circularly arcuate between the first plate body and the second plate body.
5. The unitized closed section control arm of claim 4, wherein: The sleeves are circularly arcuate between the first plate body and the second plate body.
6. The unitized closed section control arm of claim 5, wherein: The sleeves on the first plate body and the sleeves on the second plate body are left with a gap therebetween.
7. The one-piece closed section control arm of claim 1, wherein: The first plate body and the second plate body are both planar plate bodies, and the third plate body and the baffles are both curved plate bodies.