High-strength low-cost swing arm structure

Abstract

The utility model discloses a high intensity low cost swing arm structure relates to automobile spare part field, including swing arm upper plate, casing pipe and swing arm lower plate, swing arm upper plate and swing arm lower plate both structure symmetry, welding and fix to form swing arm body, swing arm body both with the casing pipe welding and fix, the swing arm upper plate and swing arm lower plate are welded and fixed to form swing arm body, the casing pipe is welded and fixed to the swing arm upper plate, the casing pipe is welded and fixed to the swing arm lower plate. Liquid leakage grooves are formed in the positions where the swing arm upper plate and the swing arm lower plate are in contact with the sleeve, so that liquid leakage after welding is achieved; a ball pin support is arranged on the side, away from the two ends, of the swing arm body and used for installing a ball pin assembly, and the swing arm upper plate and the swing arm lower plate are welded and fixed to the ball pin support. According to the utility model, the problems of insufficient product strength and durability are solved; the processing property of a product is improved, and production and assembly are convenient; the product structure is optimized, and the product punch forming qualification rate is improved.

Description

Technical Field

[0001] The utility model relates to the field of automobile parts, in particular to a high-strength and low-cost swing arm structure. Background Art

[0002] The swing arm is the connecting mechanism between the frame and the wheel. It plays a guiding and supporting role in the suspension. It can effectively improve the stability of the car's steering wheel, allowing the driver to easily control the direction of the car.

[0003] In the prior art, the swing arm adopts a structure of two bushings and a ball head, the bushing is welded to the swing arm body, the ball head is riveted to the swing arm body, and the upper plate of the body is welded to the lower plate.

[0004] However, due to the influence of the swing arm body structure, the existing technology has insufficient connection strength between the sleeve and the swing arm body welding part, and the welding contact position is small; in addition, the existing solution is welded by 3-4 parts, the size of the finished product is difficult to control, and the manufacturing process is complicated. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a high-strength and low-cost swing arm structure to solve the problems of insufficient product strength and durability; to improve the process performance of the product and facilitate production and assembly; to optimize the product structure and improve the product stamping qualification rate.

[0006] The purpose of the utility model is achieved through the following technical solutions: this high-strength and low-cost swing arm structure includes a swing arm upper plate, a sleeve and a swing arm lower plate, the swing arm upper plate and the swing arm lower plate are symmetrical in structure and are welded and fixed to form a swing arm body, the two ends of the swing arm body are welded and fixed to the sleeve, and leakage grooves are provided at the contact positions of the swing arm upper plate and the swing arm lower plate and the sleeve to achieve leakage after welding; a ball pin bracket is arranged on one side of the swing arm body away from the two ends for installing a ball pin assembly, and the swing arm upper plate and the swing arm lower plate are respectively welded and fixed to the ball pin bracket.

[0007] As a further technical solution, the leakage groove is "U"-shaped, and a weld is added to each leakage groove to ensure that the upper plate and the lower plate of the swing arm and the sleeve are firmly welded.

[0008] As a further technical solution, it also includes a buffer block arranged on the upper plate of the swing arm and a locking nut arranged on the lower plate of the swing arm. The locking nut passes through the swing arm body and is connected and fixed to the buffer block.

[0009] The beneficial effects of the utility model are:

[0010] 1. The product structure with symmetrical upper and lower swing arm plates effectively reduces the number of molds, fixtures, and inspection tools, reduces production costs, and reduces the difficulty of inventory management;

[0011] 2. A leakage groove is added at the welding position of the swing arm upper plate, swing arm lower plate (swing arm body) and the sleeve, which can realize leakage after the product is welded, making it easier to carry out welding operations;

[0012] 3. Add a weld at the location of the leakage groove to improve the product structure, increase the welding strength, and improve the product performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model (top view).

[0014] Figure 2 It is a schematic diagram of the structure of the utility model (looking up).

[0015] Explanation of the reference numerals: swing arm upper plate 1, ball pin assembly 2, sleeve 3, bushing 4, buffer block 5, locking nut 6, ball pin bracket 7, swing arm lower plate 8, leakage groove 9, weld 10. DETAILED DESCRIPTION

[0016] The utility model will be described in detail below with reference to the accompanying drawings:

[0017] Example: As attached Figure 1 , 2 As shown, this high-strength and low-cost swing arm structure includes a swing arm upper plate 1, a ball pin assembly 2, a sleeve 3, a bushing 4, a buffer block 5, a locking nut 6, a ball pin bracket 7, a swing arm lower plate 8, a leakage groove 9 and a weld 10.

[0018] The upper plate 1 and the lower plate 8 of the swing arm adopt a symmetrical structure (which can effectively reduce the number of molds, fixtures, and inspection tools, reduce costs, and reduce the difficulty of inventory management), and are welded to form the swing arm body. A sleeve 3 is welded and fixed at the upper and lower ends of the swing arm body. At the same time, a leakage groove 9 (such as the contact position between the upper plate 1 and the lower plate 8 of the swing arm and the sleeve 3) is provided. Figure 2 The side of the swing arm body away from the two ends ( Figure 2 A ball pin bracket 7 is provided on the middle left side for installing the ball pin assembly 2, and the swing arm upper plate 1 and the swing arm lower plate 8 are respectively welded and fixed to the connecting parts of the ball pin bracket 7.

[0019] Preferably, refer to the attached Figure 2 The leakage groove 9 is in a "U" shape, and a weld 10 is added to each leakage groove 9, so that the welding between the swing arm upper plate 1 and the swing arm lower plate 8 and the sleeve 3 is more firmly, thereby improving the performance of the product.

[0020] Furthermore, a buffer block 5 is provided on the upper plate 1 of the swing arm, and a locking nut 6 is provided on the lower plate 8 of the swing arm. The locking nut 6 penetrates through the swing arm body and is connected and fixed to the buffer block 5 .

[0021] The utility model has grooves for liquid leakage at the contact position between the upper and lower plates of the swing arm and the sleeve 3, and adds a weld 10 at the groove, so that the welding between the upper and lower plates and the sleeve is more stable, thereby increasing the performance of the product. The swing arm upper plate 1 and the swing arm lower plate 8 adopt a symmetrical structural design, which reduces the cost of molds and welding fixtures. The upper and lower plates are welded at the connection position with the ball pin bracket 7, and the leakage groove 9 is opened at the connection part between the swing arm upper plate 1, the swing arm lower plate 8 and the sleeve 3, so that the product can leak liquid after welding.

[0022] It is understandable that, for those skilled in the art, any equivalent replacement or change to the technical solution and the concept of the utility model should fall within the protection scope of the claims attached to the utility model.

Claims

1. A high-strength and low-cost swing arm structure, characterized in that: The invention comprises an upper swing arm plate (1), a sleeve (3) and a lower swing arm plate (8). The upper swing arm plate (1) and the lower swing arm plate (8) are symmetrical in structure and are welded to form a swing arm body. Both ends of the swing arm body are welded to the sleeve (3), and leakage grooves (9) are provided at the contact positions between the upper swing arm plate (1) and the lower swing arm plate (8) and the sleeve (3) to achieve leakage after welding. A ball pin bracket (7) is provided on one side of the swing arm body away from the two ends for mounting a ball pin assembly (2). The upper swing arm plate (1) and the lower swing arm plate (8) are respectively welded to the ball pin bracket (7).

2. The high-strength and low-cost swing arm structure according to claim 1, characterized in that: The leakage groove (9) is in a "U" shape, and a welding seam (10) is added on each leakage groove (9) so that the swing arm upper plate (1) and the swing arm lower plate (8) are firmly welded to the sleeve (3).

3. The high-strength and low-cost swing arm structure according to claim 1, characterized in that: It also comprises a buffer block (5) arranged on the upper plate (1) of the swing arm and a locking nut (6) arranged on the lower plate (8) of the swing arm. The locking nut (6) penetrates the swing arm body and is connected and fixed to the buffer block (5).

Images