Battery cover plate pole welding ring welding tool
By combining positioning plates and tooling, the problems of rivet connection accuracy and welding misalignment were solved, achieving high-precision welding and efficient production, thus improving the quality and production efficiency of battery cover plates.
Patent Information
- Application Number
- CN202520541835.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-26
AI Technical Summary
In the traditional assembly process of square aluminum battery cover plates, the rivet connection requires high precision, the mold making cycle is long, and the weld line misalignment during welding leads to a high scrap rate, which affects production efficiency and product quality.
A combination of positioning plates, dotted pressure plates, and full-welding pressure plates is used to ensure accurate welding trajectory and reduce weld line deviation through pre-fixation and full-welding.
It improved welding precision and production efficiency, ensured product quality, and reduced scrap rate.
Smart Images
Figure CN223932963U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of square aluminum shell battery cover assembly and welding technology, and in particular to a welding fixture for battery cover electrode welding ring. Background Technology
[0002] In the assembly of square aluminum-cased battery covers, the traditional method involves riveting the terminals to the cover. This method requires high precision, has a long mold-making cycle, and increases production and time costs; moreover, it is difficult to control the deformation and compression after riveting within an ideal range, which can easily affect product quality.
[0003] Therefore, in order to solve the above problems, welding is usually adopted. The welding of the cover plate pole welding ring is a key step. At present, the welding is carried out directly with full welding, which is very easy to cause the welding line to deviate, resulting in a high welding scrap rate and making it difficult to guarantee production efficiency and product quality. Utility Model Content
[0004] To address the technical problems existing in the background art, this utility model proposes a welding fixture for welding the electrode post of a battery cover.
[0005] This utility model proposes a welding fixture for welding the electrode post of a battery cover, comprising:
[0006] Positioning plate, used to secure the battery cover;
[0007] The dotting pressure plate is detachably connected to the positioning plate and is used to dot weld the welding ring sleeved on the pole post of the cover plate for pre-fixation;
[0008] A full-welding pressure plate, detachably connected to the positioning plate, is used to perform full-welding on the welding ring.
[0009] Preferably, the positioning plate is provided with a positioning groove and a positioning pin that match the cover plate.
[0010] Preferably, the lower end of the dotting pressure plate is provided with a plurality of dotting welding heads, and the spacing between the dotting welding heads matches the welding ring.
[0011] Preferably, the lower end of the full-welding pressure plate is provided with a welding groove that matches the welding ring.
[0012] Preferably, the width of the welding groove is 0.1-0.2 mm larger than the diameter of the welding ring.
[0013] Preferably, the dotting pressure plate and the full welding pressure plate are connected to the positioning plate through a snap-fit structure.
[0014] Preferably, the device further includes a controller that is communicatively connected to the dotting plate and the full-welding plate. Both the dotting plate and the full-welding plate are provided with pressure sensors for monitoring pressure, and the pressure sensors are communicatively connected to the controller.
[0015] In summary, this utility model has the following beneficial effects: First, the cover plate is placed on the positioning plate, then a welding ring is fitted onto the cover plate pole, a dotting pressure plate is assembled, and the welding ring is pre-fixed. Then, the full welding pressure plate is replaced, and the welding ring is fully welded through. Thus, through the pre-fixation with the dotting pressure plate and the full welding with the full welding pressure plate, the welding trajectory is ensured to be accurate, weld line deviation is reduced, welding precision is improved, production efficiency is increased, and product quality is guaranteed.
[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0017] Figure 1 An exploded view of the battery cover plate electrode welding ring welding fixture during the installation of the pressure plate in an embodiment of this utility model.
[0018] Figure 2 This is an exploded view of the battery cover plate electrode welding ring welding fixture installed with the full welding pressure plate according to an embodiment of this utility model.
[0019] In the picture:
[0020] 1. Positioning plate; 2. Positioning groove; 3. Positioning pin; 4. Dotting pressure plate; 5. Full welding pressure plate; 6. Cover plate; 7. Pole post; 8. Welding ring; 9. Welding groove. Detailed Implementation
[0021] The embodiments of this utility model are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0022] like Figure 1-2 As shown in this embodiment, a welding fixture for welding the electrode post of a battery cover plate includes:
[0023] Positioning plate 1 is used to fix battery cover 6;
[0024] The dotting pressure plate 4 is detachably connected to the positioning plate 1 and is used to dot weld the welding ring 8 on the pole post 7 sleeved on the cover plate 6 for pre-fixation;
[0025] The full-welding pressure plate 5 is detachably connected to the positioning plate 1 and is used to perform full-welding on the welding ring 8.
[0026] Specifically, the dotted pressure plate 4 and the fully welded pressure plate 5 are connected to the positioning plate 1 via a snap-fit structure. This facilitates quick replacement and improves production efficiency.
[0027] Thus, the cover plate 6 is first placed on the positioning plate 1, and the welding ring 8 is fitted onto the pole post 7 of the cover plate 6. The dotting pressure plate 4 is then installed to pre-fix the welding ring 8. Next, the dotting pressure plate 4 is removed, and the full welding pressure plate 5 is installed to fully weld the welding ring 8. Both the dotting pressure plate 4 and the full welding pressure plate 5 are detachably connected to the positioning plate 1 for easy and quick replacement. In this way, the pre-fixation by the dotting pressure plate 4 and the full welding by the full welding pressure plate 5 ensure accurate welding trajectory, reduce weld line deviation, improve welding precision, increase production efficiency, and guarantee product quality.
[0028] Furthermore, the positioning plate 1 is provided with a positioning groove 2 and a positioning pin 3 that match the cover plate 6. The battery cover plate 6 is placed into the positioning groove 2 of the positioning plate 1 and fixed by the positioning pin 3 to ensure the accurate positioning of the cover plate 6 and avoid displacement problems during welding. The positioning plate 1 can be made of high-strength aluminum alloy to reduce weight, improve durability, and extend service life.
[0029] Furthermore, the lower end of the spotting pressure plate 4 is provided with multiple spotting welding heads, the spacing between which matches the welding ring 8. Specifically, the spotting welding heads can be made of high-temperature resistant alloy material with a hard chrome plating to improve wear resistance. Specifically, each welding ring 8 can be equipped with 4-6 spotting welding heads to ensure firm pre-fixation, the specific number of spotting welding heads depending on the actual situation.
[0030] In this embodiment, the lower end of the full-welding pressure plate 5 is provided with a welding groove 9 that matches the welding ring 8.
[0031] Furthermore, the width of the welding groove 9 is slightly larger than the diameter of the welding ring 8 to ensure accurate welding trajectory and reduce weld line deviation. Specifically, the width of the welding groove 9 is 0.1-0.2 mm larger than the diameter of the welding ring 8.
[0032] Preferably, for ease of control, a controller communicatively connected to the dotting plate 4 and the full welding plate 5 is also included. Both the dotting plate 4 and the full welding plate 5 are equipped with pressure sensors for monitoring pressure, and the pressure sensors are communicatively connected to the controller. The pressure sensors can transmit the detected pressure signals to the controller, which ensures uniform welding pressure by controlling the downward pressure of the dotting plate 4 and the full welding plate 5.
[0033] In summary, firstly, the cover plate 6 is placed in the positioning groove 2 of the positioning plate 1 and fixed by the positioning pin 3. Then, the welding ring 8 is fitted onto the pole post 7 of the cover plate 6, the dotting pressure plate 4 is assembled, and the welding equipment is started. The welding ring 8 is pre-fixed by the dotting welding head. Then, the dotting pressure plate 4 is removed and replaced with the full welding pressure plate 5. The welding equipment is started, and the welding ring 8 is fully welded through the welding groove 9 to ensure that the weld depth of the welding ring 8 is ≥0.8mm, which meets the technical standard and improves the product qualification rate.
[0034] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0037] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A welding fixture for welding rings on battery cover electrode posts, characterized in that, include: Positioning plate, used to secure the battery cover; The dotting pressure plate is detachably connected to the positioning plate and is used to dot weld the welding ring sleeved on the pole post of the cover plate for pre-fixation; A full-welding pressure plate, detachably connected to the positioning plate, is used to perform full-welding on the welding ring.
2. The welding fixture for the battery cover plate electrode post welding ring according to claim 1, characterized in that, The positioning plate is provided with a positioning groove and a positioning pin that match the cover plate.
3. The welding fixture for the battery cover plate electrode post welding ring according to claim 2, characterized in that, The lower end of the dotting pressure plate is provided with multiple dotting welding heads, and the spacing between the dotting welding heads matches the welding ring.
4. The welding fixture for the battery cover plate electrode post welding ring according to claim 1, characterized in that, The lower end of the full-welding pressure plate is provided with a welding groove that matches the welding ring.
5. The welding fixture for the battery cover plate electrode post welding ring according to claim 4, characterized in that, The width of the welding groove is 0.1-0.2 mm larger than the diameter of the welding ring.
6. The welding fixture for the battery cover plate electrode post welding ring according to claim 1, characterized in that, The dotting pressure plate and the full welding pressure plate are connected to the positioning plate through a snap-fit structure.
7. The welding fixture for the battery cover plate electrode post welding ring according to claim 6, characterized in that, It also includes a controller that can be communicatively connected to the dotting plate and the full welding plate. Both the dotting plate and the full welding plate are provided with pressure sensors for monitoring pressure. The pressure sensors are communicatively connected to the controller.