Welding structure for solving plate thickness difference
By setting a liner on the outer curved surface of the bearing sleeve and welding it to the gap of the rear arm body, the problem of insufficient welding caused by the difference in plate thickness was solved, thereby improving the welding quality and enhancing the material strength, ensuring safe use and extended service life.
Patent Information
- Application Number
- CN202423136181.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-18
AI Technical Summary
In the existing technology, the thickness difference between the bearing sleeve and the rear arm leads to insufficient penetration during welding, which causes the product to easily break at the weld, affecting its service life and safety.
A liner is placed on the outer curved surface of the bearing sleeve. A gap is formed between the liner and the rear arm body and it is welded and fixed. By increasing the liner structure, the weld penetration depth is improved, ensuring that the electric arc can reach the root of the base material.
It improves welding quality, enhances material strength, extends service life, and improves safety in use, all at a lower cost.
Smart Images

Figure CN223544321U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of welding forming technology, specifically to a welding structure for solving the problem of plate thickness differences. Background Technology
[0002] Currently, for the welding of bearing sleeves and rear arms, the two are directly welded together. Due to the thickness difference between the two, the welding requirement in this case is to achieve a penetration depth of 50%-75% of the thickness of the thinner plate. However, this welding method greatly reduces the frequency of use of the product components, and the product is prone to breakage at the weld during use, affecting the product's service life and safety. Utility Model Content
[0003] This invention aims to overcome the shortcomings of existing technologies by providing a welding structure that addresses differences in plate thickness.
[0004] The present invention solves the technical problem by adopting the following technical solution: a welding structure for solving plate thickness differences, comprising a bearing sleeve and a rear arm body, wherein a liner is provided on the outer curved surface of the bearing sleeve, the liner protrudes to the outer curved surface of the bearing sleeve, one end of the rear arm body abuts against the liner, and there is a gap between the rear arm body and the bearing sleeve, the gap being for welding and fixing between the rear arm body and the bearing sleeve.
[0005] In several embodiments, an installation groove is provided on the outer curved surface of the bearing sleeve, the installation groove being rectangular and surrounding the bearing sleeve to form an installation block.
[0006] In several embodiments, the pad includes a base plate and two side plates, the side plates being bent, the pad being inserted into a mounting groove and fitting against the bottom surface of the mounting groove, and the mounting block being partially surrounded by the pad.
[0007] In several embodiments, one end of the rear arm body is provided with an opening, and the padding portion is embedded in the opening.
[0008] In several embodiments, the gasket is welded to the bearing sleeve.
[0009] The beneficial effects of this utility model are as follows:
[0010] This invention employs an added gasket structure to increase the weld penetration, ensure material strength, extend service life, and guarantee safe use.
[0011] This invention has a simple structure and can significantly improve welding performance at a lower cost. Attached Figure Description
[0012] The accompanying drawings described herein are for illustrative purposes only and do not represent all possible implementations, nor should they be considered as limiting the scope of this invention.
[0013] Figure 1 The overall structure of the welded structure for resolving plate thickness differences in Embodiment 1 is illustrated schematically;
[0014] Figure 2 Schematic illustration Figure 1 The explosive structure;
[0015] Figure 3 Schematic illustration Figure 1 A structure from another perspective. Detailed Implementation
[0016] The embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of the present utility model, but not all embodiments.
[0017] Therefore, the following detailed description of the embodiments of the present invention provided in conjunction with the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0018] Example 1
[0019] like Figures 1-3 As shown, the welding structure for resolving plate thickness differences in this embodiment mainly includes a bearing sleeve 10, a rear arm body 20, and a gasket 30. The gasket 30 is disposed on the outer curved surface of the bearing sleeve 10 and protrudes to the outer curved surface of the bearing sleeve 10. One end of the rear arm body 20 abuts against the gasket 30. There is a gap between the rear arm body 20 and the bearing sleeve 10, which allows for welding and fixing between the rear arm body 20 and the bearing sleeve 10.
[0020] The bearing sleeve 10 has an installation groove 11 on its outer curved surface. The installation groove 11 is rectangular and surrounds the bearing sleeve 10 to form an installation block 12. The installation block 12 is surrounded by the installation groove 11. The curvature of the bottom surface of the installation groove 11 is consistent with the curvature of the outer curved surface of the bearing sleeve 10, forming a fan-shaped structure.
[0021] The pad 30 includes a base plate 31 and two side plates 32, which generally form a U-shaped structure. The side plates 32 are bent. The pad 30 is inserted into the mounting groove 11 and fits against the bottom surface of the mounting groove 11. The mounting block 12 is partially surrounded by the pad 30. The base plate 31 and the side plates 32 both protrude to the outside of the mounting groove 11.
[0022] Furthermore, an opening 21 is provided at one end of the rear arm body 20, and the pad 30 can be partially embedded in the opening 21 to form a positioning.
[0023] Furthermore, the gasket 30 is welded and fixed to the bearing sleeve 10.
[0024] In the processing of this utility model, the bearing sleeve 10 is first slotted to form an installation groove 11. After the gasket 30 is inserted into the installation groove 11, it is spot welded and fixed. Then, it is placed into the welding fixture and welded and fixed to the rear arm body 20. It should be noted that at least 0.8mm gap will be formed between the bearing sleeve 10 and the rear arm body 20 to ensure that the welding arc can reach the root of the base material. By setting the gasket 30, the arc can be prevented from penetrating the base material, thus ensuring the welding quality.
[0025] All descriptions herein may be presented in any suitable order. Any and all instances used, or exemplary language provided herein (such as "for example"), are merely for the purpose of better illustrating the invention and are not intended to limit the scope of the invention, except as provided in the claims. The language used in the detailed description should not be construed as indicating any essential elements for practicing the invention beyond the claims.
[0026] This utility model describes preferred embodiments, including the best mode known to the inventors for carrying out the utility model. Of course, variations of these preferred embodiments will be readily apparent to those skilled in the art. The inventors intend that those skilled in the art may use these variations as appropriate, and the inventors indicate that the utility model can be implemented in other ways than those specifically described herein. Therefore, this utility model includes all improvements encompassed by the spirit and scope of the utility model as defined by the claims. Moreover, unless otherwise stated or there is a clear contradiction in the content, this utility model includes any of the foregoing elements and all possible variations thereof.
Claims
1. A welded structure for resolving plate thickness differences, comprising a bearing sleeve (10) and a rear arm body (20), characterized in that, A liner (30) is provided on the outer curved surface of the bearing sleeve (10). The liner (30) protrudes to the outer curved surface of the bearing sleeve (10). One end of the rear arm body (20) abuts against the liner (30). There is a gap between the rear arm body (20) and the bearing sleeve (10). The gap allows for welding and fixing between the rear arm body (20) and the bearing sleeve (10).
2. The welding structure for resolving plate thickness differences according to claim 1, characterized in that, The bearing sleeve (10) has an installation groove (11) on its outer curved surface. The installation groove (11) is rectangular and surrounds the bearing sleeve (10), forming an installation block (12) on the bearing sleeve (10).
3. The welding structure for resolving plate thickness differences according to claim 2, characterized in that, The pad (30) includes a base plate (31) and two side plates (32), the side plates (32) being bent, the pad (30) being inserted into the mounting groove (11) and fitting against the bottom surface of the mounting groove (11), and the mounting block (12) being partially surrounded by the pad (30).
4. A welding structure for resolving plate thickness differences according to claim 3, characterized in that, The rear arm body (20) has an opening (21) at one end, and the pad (30) is partially embedded in the opening (21).
5. A welding structure for resolving plate thickness differences according to claim 1, characterized in that, The gasket (30) is welded and fixed to the bearing sleeve (10).