Lightweight suspension arm with snap-in weld

Abstract

The utility model relates to a kind of lightweight suspension arm of buckling welding, belong to automobile parts technical field.A kind of lightweight suspension arm of buckling welding, including arm shell A, arm shell B, ball head assembly, rubber sleeve assembly and mounting sleeve;The arm shell A and arm shell B are welded into whole and form herringbone arm body after welding;The lower end of arm body is symmetrically connected with mounting sleeve welding;The inside of mounting sleeve is equipped with rubber sleeve assembly;The upper end of arm body is welded with assembly seat;Ball head assembly is press-fitted in assembly seat.The lightweight suspension arm of buckling welding, compact structure, ingenious, by utilizing the characteristics of arm shell A and arm shell B light weight, reduce the overall weight of the suspension arm, and the installation of ball head assembly is completed by press-fitting, solve the inconvenient problem of installing ball head assembly by spin riveting, meet the use requirement of people.

Description

Technical Field

[0001] This utility model relates to a lightweight suspension arm with snap-fit ​​welding, belonging to the field of automotive parts technology. Background Technology

[0002] The suspension arm is a crucial connecting component between the car wheel and the body. Existing suspension arms, such as the suspension arm assembly disclosed in utility model patent CN220594569U, while meeting certain usage requirements to some extent, have the following problems; 1. The existing suspension arm is made of die-cast metal material, which has the characteristic of being heavy and cannot meet the requirements of lightweight vehicle parts.

[0003] 2. The ball joint assembly on the existing suspension arm is installed by riveting; however, the suspension arm body has an irregular structure, and there are assembly inconveniences when installing the ball joint assembly by riveting.

[0004] Therefore, it is necessary to develop a compact and ingenious design to solve the above-mentioned problems of existing automotive suspension arms. Summary of the Invention

[0005] The purpose of this utility model is to provide a lightweight suspension arm with a compact structure and ingenious design, which solves the problems of large weight and inconvenient assembly of existing automotive suspension arms through snap-fit ​​welding.

[0006] The technical solution of this utility model is: A lightweight suspension arm with snap-fit ​​welding includes an arm housing A, an arm housing B, a ball joint assembly, a rubber sleeve assembly, and a mounting sleeve; characterized in that: the arm housing A and arm housing B are welded together to form a V-shaped arm body; mounting sleeves are symmetrically welded to the lower end of the arm body; the rubber sleeve assembly is installed inside the mounting sleeve; a mounting base is welded to the upper end of the arm body; and the ball joint assembly is press-fitted into the mounting base.

[0007] Multiple connecting cylinders are assembled inside the arm shell A and arm shell B; through holes are provided on both sides of the connecting cylinders on arm shell A and arm shell B.

[0008] The assembly base is provided with an assembly hole; the outer surface of the ball head assembly is provided with a knurled toothed ring; the ball head assembly is connected to the assembly hole by an interference fit through the knurled toothed ring.

[0009] The ball joint assembly includes a ball joint seat, a ball joint pin, an inner bushing, a limiting ring, and a dust cover; the upper end of the ball joint seat is fixed with the limiting ring by riveting; the ball joint pin is movably installed inside the ball joint seat through the inner bushing; the ball joint pin passes through the limiting ring and extends to its upper end; a dust cover is installed between the ball joint pin and the ball joint seat; the dust cover is connected to the ball joint pin and the ball joint seat respectively by locking rings.

[0010] The outer surface of the ball head is provided with a limiting protrusion; a knurled toothed ring is provided on the ball head below the limiting protrusion.

[0011] The limiting ring has an avoidance cone hole inside.

[0012] The upper end of the ball head pin is threaded with a nut.

[0013] The advantages of this utility model are: This lightweight suspension arm, which is welded together, has a compact structure and ingenious design. By utilizing the light weight of arm housing A and arm housing B, the overall weight of the suspension arm is reduced. Furthermore, the ball joint assembly is installed by press fitting, which solves the problem of inconvenient installation of ball joint assemblies by riveting and meets people's usage needs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the right-side structure of this utility model; Figure 3 This is a schematic diagram of the main structure of this utility model; Figure 4 for Figure 3 Schematic diagram of the structure in the AA direction; Figure 5 for Figure 2 Enlarged structural diagram at point B; Figure 6 This is a schematic diagram of the structure of the ball head assembly of this utility model; Figure 7 for Figure 6 A magnified structural diagram at point C.

[0015] In the diagram: 1. Arm housing A; 2. Arm housing B; 3. Mounting sleeve; 4. Rubber sleeve assembly; 5. Assembly seat; 6. Ball head assembly; 7. Connecting sleeve; 8. Through hole; 9. Assembly hole; 10. Knurled toothed ring; 11. Ball head seat; 12. Limiting ring; 13. Inner bushing; 14. Ball head pin; 15. Dust cover; 16. Locking ring; 17. Limiting ridge; 18. Clearance cone hole; 19. Nut. Detailed Implementation

[0016] The lightweight suspension arm, which is welded together, includes arm housing A1, arm housing B2, ball joint assembly 6, rubber sleeve assembly 4, and mounting sleeve 3 (see the attached instruction manual). Figure 1 and 2 ).

[0017] Arm housing A1 and arm housing B2 are welded together to form a V-shaped arm body (see instruction manual appendix). Figure 1 The purpose of arranging arm housings A1 and B2 in this way is to reduce the overall weight of the suspension arm by utilizing the lightweight characteristics of arm housings A1 and B2 themselves, thereby achieving the goal of weight reduction.

[0018] The lower end of the arm is symmetrically welded with mounting sleeves 3; the mounting sleeves 3 contain rubber sleeve components 4 (see the instruction manual appendix). Figure 1 , 2 (and 3). The structure of the rubber sleeve assembly 4 is consistent with the existing structure.

[0019] Multiple connecting cylinders 7 are assembled inside the arm housing A1 and arm housing B2; through holes 8 are provided on both sides of the connecting cylinders 7 on arm housing A1 and arm housing B2 (see the instruction manual appendix). Figure 3 and 4 The purpose of setting the connecting sleeve 7 is that, during assembly, the suspension arm is installed on the vehicle body through the connecting sleeve 7 and the through hole 8; setting the connecting sleeve 7 can increase the overall strength of the arm housing A1 and arm housing B2 and avoid the problem of deformation.

[0020] The upper end of the arm is welded with a mounting base 5; a ball joint assembly 6 is press-fitted into the mounting base 5 (see the instruction manual appendix). Figure 2 and 5 The mounting base 5 is provided with mounting holes 9 (see the instruction manual appendix). Figure 5 ).

[0021] Ball joint assembly 6 includes ball joint seat 11, ball joint pin 14, inner bushing 13, limit ring 12 and dust cover 15 (see instruction manual appendix). Figure 6 and 7 ).

[0022] The outer surface of the ball head 11 is provided with a limiting protrusion 17; a knurled toothed ring 10 is provided on the ball head 11 below the limiting protrusion 17 (see the instruction manual). Figure 6 and 7 ).

[0023] The upper end of the ball joint 11 is fixed with a limit ring 12 by riveting (see the instruction manual). Figure 6 The limiting ring 12 has the function of confining the ball head of the ball head pin 14 inside the ball head seat 11, preventing the ball head pin 14 from separating from the ball head seat 11.

[0024] The limiting ring 12 has an internal clearance cone hole 18 (see instruction manual). Figure 7 The purpose of setting the clearance cone hole 18 is to provide the ball head pin 14 with a wider rotation space through the clearance cone hole 18.

[0025] A ball head pin 14 is movably mounted inside the ball head seat 11 via an inner bushing 13; a nut 19 is threadedly connected to the upper end of the ball head pin 14. The ball head pin 14 extends to its upper end after passing through the limiting ring 12; a dust cover 15 is installed between the ball head pin 14 and the ball head seat 11; the dust cover 15 is connected to the ball head pin 14 and the ball head seat 11 respectively via a locking ring 16.

[0026] The ball joint assembly 6 is connected to the mounting base 5 with the mounting hole 9 via a knurled gear ring 10 through an interference fit. The purpose of this ball joint base 11 is to allow the ball joint assembly 6 to be installed by pressing the ball joint base 11 onto the mounting base 5 during assembly. This utilizes the fact that press fitting is more convenient than riveting, thus enhancing the ease of installation of the ball joint assembly 6.

[0027] The knurled toothed ring 10 on the ball head seat 11 enables the ball head seat 11 to connect more tightly with the mounting base 5, avoiding the problem of easy separation between the ball head seat 11 and the mounting base 5.

[0028] This lightweight suspension arm, which is welded together, has a compact structure and ingenious design. By utilizing the light weight of the arm housing A1 and arm housing B2, the overall weight of the suspension arm is reduced. Furthermore, the ball joint assembly 6 is installed by press fitting, which solves the problem of inconvenient installation of the ball joint assembly 6 by riveting and meets people's usage needs.

Claims

1. A lightweight suspension arm with snap-fit ​​welding, comprising arm housing A (1), arm housing B (2), ball joint assembly (6), rubber sleeve assembly (4), and mounting sleeve (3); characterized in that: The arm shell A (1) and arm shell B (2) are welded together to form a herringbone-shaped arm body; the lower end of the arm body is symmetrically welded with an installation sleeve (3); the installation sleeve (3) contains a rubber sleeve assembly (4); the upper end of the arm body is welded with an assembly seat (5); the assembly seat (5) contains a ball head assembly (6).

2. The lightweight suspension arm with snap-fit ​​welding according to claim 1, characterized in that: Multiple connecting cylinders (7) are assembled inside the arm shell A (1) and arm shell B (2); through holes (8) are provided on both sides of the connecting cylinder (7) on the arm shell A (1) and arm shell B (2).

3. The lightweight suspension arm with snap-fit ​​welding according to claim 1, characterized in that: The assembly base (5) is provided with an assembly hole (9); the outer surface of the ball head assembly (6) is provided with a knurled toothed ring (10); the ball head assembly (6) is connected to the assembly hole (9) by an interference fit through the knurled toothed ring (10).

4. A lightweight suspension arm with snap-fit ​​welding according to claim 1, characterized in that: The ball joint assembly (6) includes a ball joint seat (11), a ball joint pin (14), an inner bushing (13), a limiting ring (12), and a dust cover (15). The upper end of the ball joint seat (11) is fixedly fitted with the limiting ring (12) by riveting. The ball joint pin (14) is movably installed inside the ball joint seat (11) through the inner bushing (13). The ball joint pin (14) extends to its upper end after passing through the limiting ring (12). A dust cover (15) is installed between the ball joint pin (14) and the ball joint seat (11). The dust cover (15) is connected to the ball joint pin (14) and the ball joint seat (11) respectively by a locking ring (16).

5. A lightweight suspension arm with snap-fit ​​welding according to claim 4, characterized in that: The outer surface of the ball head seat (11) is provided with a limiting protrusion (17); a knurled tooth ring (10) is provided on the ball head seat (11) below the limiting protrusion (17).

6. A lightweight suspension arm with snap-fit ​​welding according to claim 4, characterized in that: The limiting ring (12) is provided with an avoidance cone hole (18) inside.

7. A lightweight suspension arm with snap-fit ​​welding according to claim 4, characterized in that: The upper end of the ball head pin (14) is threaded with a nut (19).

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