Size inspection tool used after welding of multi-tab and laminated pole group
By designing a dimension inspection tool for welding multi-pole ear and laminated electrode assembly, the problem of difficulty in accurately measuring the position and glue height of the electrode is solved, and the accurate measurement of the position and glue height of the electrode is achieved, ensuring the position and packaging effect of the finished electrode ear.
Patent Information
- Application Number
- CN202422445017.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-10
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-10-10
AI Technical Summary
After welding of multi-pole ear and laminated electrode assembly, it is difficult to accurately measure key parameters such as the position of the ear and the high glue, resulting in poor performance of the finished ear.
A dimension inspection tool is designed including a pole group positioning block, an upper pressure plate and a lower pressure plate. The hollow area is matched with the pole group, and the steps are adapted to the bent pole ears so that they are placed horizontally. The transparent board is used for video measurement to ensure measurement accuracy.
The tooling is simple and easy to process, and can accurately measure the position and glue height of the pole ear, solving the problem of difficult to grasp the position of the pole ear, and is suitable for quality inspection and dimensional inspection of multi-pole ear and laminate models.
Smart Images
Figure CN223005495U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of lithium - ion batteries, and particularly relates to a dimensional inspection tooling for multi - tab and laminated pole groups after welding. Background Art
[0002] With the gradual popularization of the application scope of polymer soft - package lithium - ion batteries, the demand for fast charging of soft - package battery cells in the 3C and smart home markets is gradually increasing. Soft - package battery cells are currently used in various fields, and the demand for high - rate charge and discharge is gradually popularized. Battery cells with multi - tabs and gaskets have certain structural advantages and can meet market demands.
[0003] The manufacturing processes of both multi - tabs and laminations require procedures such as pre - welding of multi - layer foil tabs, final welding of hard tabs, and then bending the hard tabs. Since the root of the hard tab is aluminum foil or copper foil, the tab is prone to shaking after bending. If measured directly, there will be large measurement deviations in key parameters such as tab position and tab glue height, and these two directly affect the position of the finished tab and the encapsulation effect. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a dimensional inspection tooling for multi - tab and laminated pole groups after welding, so as to solve the technical problems existing in the prior art.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A dimensional inspection tooling for multi - tab and laminated pole groups after welding, including a pole - group positioning block, an upper pressing plate, and a lower pressing plate. A hollowed - out area for embedding the pole group is provided in the middle of the pole - group positioning block. A step is provided above the hollowed - out area, and the step is adapted to the bending height of the tab, so that the bent tab is placed horizontally. The upper pressing plate and the lower pressing plate are fixed on both sides of the pole - group positioning block by bolts.
[0006] Preferably, the upper pressing plate and the lower pressing plate are transparent plates.
[0007] Preferably, the thickness of the hollowed - out area is the same as the thickness of the pole group.
[0008] Preferably, the length of the hollowed - out area is the same as the length of the aluminum - plastic shell female die.
[0009] Preferably, threaded holes are respectively provided at the four angles of the pole - group positioning block.
[0010] The beneficial effect of the utility model is: This tooling is simple and easy to process, can be used for inspection requirements such as quality inspection and dimension comparison, solves the problem of difficult tab - position grasping, and can be applied to multi - tab and laminated models. Brief Description of the Drawings
[0011] Figure 1 It is a decomposition diagram of the utility model;
[0012] Figure 2 is the assembly drawing of the present utility model;
[0013] Figure 3 is the perspective view of the pole group positioning block in the present utility model;
[0014] Figure 4 is the side view of the present utility model. Specific embodiments
[0015] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.
[0016] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.
[0017] In the description of the present invention, it should be noted that, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixed connection", "fixed joint" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.
[0018] The specific embodiments of the present utility model will be described in detail below in conjunction with the drawings and preferred embodiments.
[0019] Such as Figures 1-4As shown, a dimensional inspection tooling for a multi-tab and laminated electrode group after welding includes an electrode group positioning block 1, an upper pressing plate 2, and a lower pressing plate 3. A hollow area 1-3 for embedding the electrode group is provided in the middle of the electrode group positioning block, aiming to embed the electrode group and cooperate with the upper pressing plate 2 and the lower pressing plate 3 to press the electrode group, ensuring the accuracy of taking points on the side of the electrode group during measurement. The dimension in the length direction of the hollow area is the designed length value of the aluminum-plastic shell female die, aiming to embed the bent tabs and simulate the actual situation of the electrode group entering the shell, ensuring the accuracy of measuring the tab position and the tab glue height.
[0020] A step 1-1 is provided above the hollow area, and the step is adapted to the bending height of the tab, so that the bent tab is placed horizontally, ensuring the accuracy of taking points on the tab position during measurement. The upper pressing plate and the lower pressing plate are fixed on both sides of the electrode group positioning block by bolts. The thickness of the side wall 1-2 of the hollow area is the same as the thickness of the electrode group.
[0021] The upper pressing plate and the lower pressing plate are transparent plates. The purpose is that when detected by a video measuring instrument, the backlight can pass through the lower pressing plate 3 and project onto the electrode group, and through the transparent upper pressing plate 2, accurate points can be taken.
[0022] The pressing degree of the electrode group directly affects the taking of points on the side of the electrode group and affects the measurement accuracy. Therefore, threaded holes 1-4 are respectively provided at the four angles of the electrode group positioning block. The upper pressing plate and the lower pressing plate are clamped and fixed to the electrode group by cooperating with fixing screws.
[0023] It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.
Claims
1. A tool for dimensional inspection of multiple tabs and laminated pole groups after welding, characterized in that: It includes a pole group positioning block, an upper pressure plate and a lower pressure plate. A hollow area for embedding the pole group is provided in the middle of the pole group positioning block. A step is provided above the hollow area. The step is adapted to the bending height of the pole ear so that the bent pole ear can be placed horizontally. The upper pressure plate and the lower pressure plate are fixed to both sides of the pole group positioning block by bolts.
2. The dimensional inspection tool for multiple tabs and laminated electrode groups after welding according to claim 1 is characterized in that: The upper pressing plate and the lower pressing plate are transparent plates.
3. The dimensional inspection tool for multiple tabs and laminated electrode groups after welding according to claim 1 is characterized in that: The thickness of the hollow area is the same as the thickness of the electrode group.
4. The dimensional inspection tool for multiple tabs and laminated electrode groups after welding according to claim 1 is characterized in that: The length of the hollow area is the same as that of the aluminum-plastic shell.
5. The dimensional inspection tool for multiple tabs and laminated electrode groups after welding according to claim 1 is characterized in that: The four included corners of the pole group positioning block are respectively provided with threaded holes.