A welding positioning structure of a grid plate
By using limiting bosses and positioning grooves in the grid plate to achieve precise positioning and stable connection before welding, the problems of insufficient welding accuracy and strength are solved, and the service life of the grid structure is extended.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING ZHICHUANG UNITED TECH CO LTD
- Filing Date
- 2025-08-29
- Publication Date
- 2026-07-24
AI Technical Summary
The existing grid structure cannot be precisely positioned during welding, resulting in insufficient welding accuracy and strength, and a short service life.
The structure employs a limiting boss and positioning groove structure of the first plate and the second plate. Positioning is achieved by snap-fit connection of the limiting boss, and the boss is cut off after welding to improve stability and strength.
It achieves precise positioning and stability before and after welding, enhances welding strength, and extends the service life of the grid structure.
Smart Images

Figure CN224543625U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of welding technology, and in particular to a welding positioning structure for a grid plate. Background Technology
[0002] In industrial production, grid structures are frequently required, typically formed by welding multiple strip-shaped grid plates together. However, current grid structures suffer from inconsistent positioning between the two grid plates during manufacturing, leading to inconsistent precision after welding and frequent deviations in position and angle. Furthermore, current grid structures exhibit low strength after welding, resulting in a short lifespan.
[0003] Therefore, there is a need to provide an improved technical solution that addresses the shortcomings of the existing technology. Utility Model Content
[0004] The purpose of this utility model is to provide a welding positioning structure for grid plates, which can position two grid plates to be welded, thereby improving the accuracy and strength after welding.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A welding positioning structure for a grid plate includes a first plate and a second plate.
[0007] The first plate has corresponding first limiting protrusions on its two opposite sides, and a positioning groove is provided between the two corresponding first limiting protrusions.
[0008] The second plate is inserted into the positioning groove, and the two opposite sides of the second plate are provided with corresponding second limiting bosses, which are snapped together with the first limiting boss.
[0009] According to one embodiment of the present invention, one of the first limiting boss and the second limiting boss is provided with a limiting groove, and the other is provided with a limiting part corresponding to the limiting groove.
[0010] According to one embodiment of the present invention, the limiting groove includes a bottom plate and a side plate, the side plate being perpendicularly connected to the bottom plate; the limiting part is inverted U-shaped, including a top plate and two connecting plates perpendicularly connected to the top plate; the bottom plate is located between the two connecting plates and abuts against the inner side of the top plate, and the side plate abuts against the side of the top plate.
[0011] According to one embodiment of the present invention, the connection between the side plate and the bottom plate is provided with an inwardly recessed knife-avoiding groove.
[0012] According to one embodiment of the present invention, the width of the positioning groove is the same as the thickness of the second plate.
[0013] According to one embodiment of the present invention, the width of the first plate and the width of the second plate are the same, and the width of the first limiting boss is greater than the width of the positioning groove.
[0014] According to one embodiment of the present invention, the extension direction of the first limiting boss is parallel to the surface of the first plate, and the extension direction of the second limiting boss is parallel to the surface of the second plate.
[0015] According to one embodiment of the present invention, the first plate is perpendicular to the second plate.
[0016] According to one embodiment of the present invention, there are multiple positioning grooves and multiple second plates, and the number and position of the first limiting bosses correspond to the number and position of the positioning grooves.
[0017] Compared with the prior art, the advantages and beneficial effects of the embodiments of this utility model are as follows:
[0018] The welding positioning structure of the grid plate provided in this embodiment allows for positioning of the first and second plates before welding. The first and second limiting bosses provide positioning, and the positioning groove also limits the second plate, ensuring stability and accuracy during welding. Furthermore, the second plate passes through the positioning groove of the first plate before welding, creating four weld seams between them, significantly improving post-weld strength and extending the grid structure's service life. After welding, the first and second limiting bosses can be removed using a cutting tool. Attached Figure Description
[0019] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an undue limitation of this utility model. Wherein:
[0020] Figure 1 A schematic diagram of the welding positioning structure of the grid plate provided in an embodiment of this utility model;
[0021] Figure 2 An enlarged schematic diagram of the first and second limiting bosses of the welding positioning structure of the grid plate provided in this embodiment of the utility model;
[0022] Figure 3 A schematic diagram of the structure of the first plate of the welding positioning structure of the grid plate provided in this embodiment of the utility model;
[0023] Figure 4 An enlarged schematic diagram of the first limiting boss of the first plate of the welding positioning structure of the grid plate provided in this embodiment of the utility model;
[0024] Figure 5 A schematic diagram of the second plate body of the welding positioning structure of the grid plate provided in this embodiment of the utility model;
[0025] Figure 6 An enlarged schematic diagram of the second limiting boss of the second plate of the welding positioning structure of the grid plate provided in the embodiment of this utility model;
[0026] Figure 7 A schematic diagram illustrating the completed construction of the welding positioning structure for the grid plate provided in this embodiment of the utility model.
[0027] Explanation of reference numerals in the attached figures:
[0028] 1. First plate; 11. First limiting boss; 12. Positioning groove; 13. Limiting part; 131. Top plate; 132. Connecting plate; 2. Second plate; 21. Second limiting boss; 22. Limiting groove; 221. Bottom plate; 222. Side plate; 223. Tool avoidance groove. Detailed Implementation
[0029] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Various examples are provided by way of explanation of the present invention and not by way of limitation. In fact, those skilled in the art will recognize that modifications and variations can be made to the present invention without departing from the scope or spirit of the invention. For example, a feature shown or described as part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desirable that the present invention encompass such modifications and variations that fall within the scope of the appended claims and their equivalents.
[0030] In the description of this utility model, the terms "first," "second," and similar words do not indicate any order, quantity, or importance, but are only used to distinguish different components. Words such as "comprising" or "including" mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects. Terms such as "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. The terms "connected," "linked," and "set up" used in this utility model should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a direct connection or an indirect connection through intermediate components; a wired connection, a radio connection, or a wireless communication signal connection. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.
[0031] like Figure 1 , Figure 2 As shown, this embodiment of the utility model provides a welding positioning structure for a grid plate, including a first plate 1 and a second plate 2. The first plate 1 has corresponding first limiting protrusions 11 on its two opposite sides, and a positioning groove 12 is provided between the two corresponding first limiting protrusions 11. The second plate 2 passes through the positioning groove 12, and its two opposite sides have corresponding second limiting protrusions 21, which are snap-fitted to the first limiting protrusions 11.
[0032] The welding positioning structure of the grid plate provided in this embodiment of the utility model allows for positioning of the first plate 1 and the second plate 2 before welding, via the first limiting boss 11 and the second limiting boss 21. Simultaneously, the positioning groove 12 also limits the second plate 2, ensuring stability and accuracy during welding. Furthermore, the second plate 2 passes through the positioning groove 12 of the first plate 1 before welding, forming four weld seams between the first plate 1 and the second plate 2, significantly improving post-weld strength and extending the service life of the grid structure. Figure 7 As shown, after welding is completed, the first limiting boss 11 and the second limiting boss 21 can be cut off by a cutting tool.
[0033] Specifically, in order to achieve the snap-fit connection between the first plate 1 and the second plate 2, one of the first limiting boss 11 and the second limiting boss 21 is provided with a limiting groove, and the other is provided with a limiting part corresponding to the limiting groove. For example... Figures 3-6 As shown, in this embodiment, a limiting part 13 is provided on the first limiting boss 11, and a limiting groove 22 is provided on the second limiting boss 21. Specifically, the limiting groove 22 includes a bottom plate 221 and a side plate 222, which is perpendicularly connected to the bottom plate 221. The limiting part 13 is inverted U-shaped and includes a top plate 131 and two connecting plates 132 perpendicularly connected to the top plate 131. When the first limiting boss 11 and the second limiting boss 21 are snapped together, the bottom plate 221 is located between the two connecting plates 132 and abuts against the inner side of the top plate 131, limiting the second plate 2 in its width direction (the length direction of the positioning groove 12). The side plate 222 abuts against the side of the top plate 131, limiting the second plate 2 in its length direction (the direction in which the second plate 2 is inserted into the positioning groove 12). Preferably, the width of the positioning groove 12 is the same as the thickness of the second plate 2, so as to limit the swinging of the second plate 2 within the positioning groove 12, and further improve the stability and positioning accuracy between the first plate 1 and the second plate 2. Furthermore, in order to facilitate the insertion of the base plate 221 between the two connecting plates 132, the cross-section of the second limiting boss 21 is T-shaped.
[0034] like Figures 3-6 As shown, in one embodiment of the present invention, the first plate 1 and the second plate 2 are rectangular, having a long side and a short side, and the first limiting boss 11 and the second limiting boss 21 are respectively provided on the long side of the first plate 1 and the second plate 2.
[0035] like Figure 6 As shown, in one embodiment of the present invention, the connection between the side plate 222 and the bottom plate 221 is provided with an inwardly recessed tool avoidance groove 223, so that the tool can be more easily withdrawn during processing.
[0036] The width of the second plate 2 can be less than the width of the first plate 1, or it can be equal to the width of the first plate 1, such as... Figures 1-2 As shown, in one embodiment of this utility model, the width of the first plate 1 and the width of the second plate 2 are the same. In this case, the length of the positioning groove 12 needs to be greater than or equal to the width of the second plate 2 so that the second plate 2 can be inserted into the positioning groove 12. Therefore, as Figures 3-4 As shown, the width of the first limiting boss 11 is greater than the width of the positioning groove 12, and the portions of the first plate 1 located on both sides of the positioning groove 12 are connected only through the first limiting boss 11.
[0037] The extending direction of the first limiting boss 11 and the second limiting boss 21 can be perpendicular to the surfaces of the first plate 1 and the second plate 2, or parallel to the surfaces of the first plate 1 and the second plate 2. For example... Figures 3-6As shown, in one embodiment of the present invention, the extension direction of the first limiting boss 11 is parallel to the surface of the first plate 1, and the extension direction of the second limiting boss 21 is parallel to the surface of the second plate 2, so that the first limiting boss 11 and the second limiting boss 21 can be cut off after the first plate 1 and the second plate 2 are welded.
[0038] In one embodiment of this invention, the first plate 1 and the second plate 2 are perpendicular to each other, resulting in a grid structure with cross-shaped nodes. In other embodiments, the first plate 1 and the second plate 2 may intersect non-perpendicularly, resulting in a grid structure with X-shaped nodes.
[0039] In one embodiment of this utility model, there are multiple positioning grooves 12 and multiple second plates 2, and the number and position of the first limiting protrusions 11 correspond to the number and position of the positioning grooves 12. That is, the first plate 1 is provided with multiple positioning grooves 12 so that multiple second plates 2 can be simultaneously positioned and connected to the first plate 1.
[0040] This utility model also provides a welding method for a grid plate, which utilizes the above-mentioned welding positioning structure of the grid plate and includes the following steps:
[0041] A. Insert the second plate 2 into the positioning groove 12 of the first plate 1, and make the first limiting boss 11 and the second limiting boss 21 snap together;
[0042] B. Weld the first plate 1 and the second plate 2 together along the positioning groove 12;
[0043] C. Cut and remove the first limiting boss 11 and the second limiting boss 21, resulting in a grid structure product. Figure 7 As shown.
[0044] In one embodiment of this utility model, step B can be performed using manual welding, or methods such as electron beam, laser, or plasma welding. Furthermore, four seams are formed between the second plate 2 and the first plate 1, allowing the first plate 1 and the second plate 2 to be welded along the positioning groove 12 from four directions. During welding, line positioning is performed first, followed by welding, resulting in a smooth, rounded weld that meets quality requirements. This significantly improves post-weld stability and effectively ensures the weld position, preventing deformation of the first plate 1 and second plate 2 due to stress contraction during welding. This guarantees the positional accuracy of the grid-like product and effectively ensures verticality and flatness. The welding method for the grid plate provided by this utility model can solve problems such as inability to assemble and position grid-like products, post-weld product skewing, and weak strength.
[0045] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A welding positioning structure for a grid plate, characterized in that, It includes a first plate (1) and a second plate (2); The first plate (1) has corresponding first limiting bosses (11) on its two opposite sides, and a positioning groove (12) is provided between the two corresponding first limiting bosses (11). The second plate (2) is inserted into the positioning groove (12). The two opposite sides of the second plate (2) are provided with corresponding second limiting bosses (21). The second limiting bosses (21) are snapped together with the first limiting bosses (11).
2. The welding positioning structure of the grid plate according to claim 1, characterized in that, One of the first limiting boss (11) and the second limiting boss (21) is provided with a limiting groove (22), and the other is provided with a limiting part (13) corresponding to the limiting groove (22).
3. The welding positioning structure of the grid plate according to claim 2, characterized in that, The limiting groove (22) includes a bottom plate (221) and a side plate (222), the side plate (222) being perpendicularly connected to the bottom plate (221); the limiting part (13) is inverted U-shaped, including a top plate (131) and two connecting plates (132) perpendicularly connected to the top plate (131); the bottom plate (221) is located between the two connecting plates (132) and abuts against the inner side of the top plate (131), and the side plate (222) abuts against the side of the top plate (131).
4. The welding positioning structure of the grid plate according to claim 3, characterized in that, The connection between the side plate (222) and the bottom plate (221) is provided with an inwardly recessed knife-avoiding groove.
5. The welding positioning structure of the grid plate according to any one of claims 1 to 4, characterized in that, The width of the positioning groove (12) is the same as the thickness of the second plate (2).
6. The welding positioning structure of the grid plate according to any one of claims 1 to 4, characterized in that, The first plate (1) and the second plate (2) have the same width, and the width of the first limiting boss (11) is greater than the width of the positioning groove (12).
7. The welding positioning structure of the grid plate according to any one of claims 1 to 4, characterized in that, The extension direction of the first limiting boss (11) is parallel to the surface of the first plate (1), and the extension direction of the second limiting boss (21) is parallel to the surface of the second plate (2).
8. The welding positioning structure of the grid plate according to any one of claims 1 to 4, characterized in that, The first plate (1) is perpendicular to the second plate (2).
9. The welding positioning structure of the grid plate according to any one of claims 1 to 4, characterized in that, The number of the positioning grooves (12) and the second plate (2) are both multiple, and the number and position of the first limiting bosses (11) correspond to the number and position of the positioning grooves (12).