Tool for measuring size of opening part of battery cell shell

By designing a fixture for measuring the opening dimensions of the battery cell casing, and utilizing internal and external vernier calipers and a guide rail adjustment structure, simultaneous measurement of the inner and outer openings of the battery cell casing was achieved. This solved the problem of low efficiency in existing technologies, improved measurement efficiency, and saved time and costs.

CN223856341UActive Publication Date: 2026-01-30HEFEI LIXIANG BATTERY TECH CO LTD
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Patent Information

Application Number
CN202520537145.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-26
Publication Date
2026-01-30
Estimated Expiration
2035-03-26

AI Technical Summary

Technical Problem

Existing technologies cannot simultaneously and efficiently detect the inner and outer dimensions of the battery cell casing, resulting in high measurement time costs and low efficiency.

Method used

A fixture for measuring the opening size of a battery cell casing was designed. It uses an internal vernier caliper and an external vernier caliper installed in parallel to each other. The position is adjusted by a length-shifting guide rail and a width-shifting guide rail to adapt to different battery cell casing sizes and achieve simultaneous measurement of the internal and external openings.

Benefits of technology

This improves the efficiency of measuring the inner and outer dimensions of the battery cell casing, saving time and costs.

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Abstract

The utility model discloses a tool for measuring the size of an opening part of a battery cell shell, which relates to the technical field of new energy battery cell shells and comprises a bottom plate, at least two groups of clamping and measuring assemblies are mounted on the bottom plate, and the relative positions of the multiple groups of clamping and measuring assemblies can be adjusted. The clamping measurement assembly comprises inner measurement vernier calipers used for measuring inner openings and outer measurement vernier calipers used for measuring outer openings. The multiple sets of inner measurement vernier calipers and outer measurement vernier calipers are parallel to one another, and main scales are located at the same horizontal height. The measuring claws of the two groups of inner measuring vernier calipers are inserted into the cell shell to measure the width of the inner opening of the shell, and the measuring claws of the two groups of outer measuring vernier calipers clamp the cell shell and measure the width of the outer opening of the shell. The inner measurement vernier caliper and the outer measurement vernier caliper clamp and measure the sizes of the inner and outer openings of the cell shell at the same time, the efficiency is high, and the time cost is saved. And the two groups of clamping and measuring assemblies are close to or far away from each other in the left-right direction and the front-back direction through the lengthening guide rails and the width guide rails so as to adapt to battery cell shells with different lengths and widths.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to new energy electric core shell technical field, especially relate to a kind of electric core shell mouth size measurement tool. BACKGROUND

[0002] With the development of clean energy electric vehicles, power lithium battery is rapidly developed, and its battery structure is also continuously optimized, and the electric core shell is an important part of the electric core structure, wherein, the electric core shell mouth size is particularly important, which is related to whether the cover plate welding is excellent.

[0003] Therefore, the electric core shell needs to be strictly measured before assembly and production, and most of the current measurement devices can only detect the inner mouth or the outer mouth at a time, cannot detect simultaneously, increases time cost and is inefficient. UTILITY MODEL CONTENT

[0004] In view of the problems mentioned in the background art, the utility model aims to provide an electric core shell mouth size measurement tool to solve the problems mentioned in the above background art.

[0005] The above technical purpose of the utility model is realized by the following technical scheme:

[0006] An electric core shell mouth size measurement tool, comprising a bottom plate, at least two groups of clamping measurement assemblies are installed on the bottom plate, the relative positions between the multiple groups of clamping measurement assemblies are adjustable, the clamping measurement assembly comprises an inner measuring vernier caliper for measuring the inner mouth and an outer measuring vernier caliper for measuring the outer mouth, and the multiple groups of inner measuring vernier calipers and outer measuring vernier calipers are parallel to each other and the main scales are located at the same horizontal height.

[0007] Preferably, one of the clamping measurement assemblies is fixedly installed on the bottom plate.

[0008] Preferably, a length-moving guide rail is installed on the bottom plate, the length direction of the length-moving guide rail is towards the fixed clamping measurement assembly, the other clamping measurement assemblies are installed on the sliding blocks of the length-moving guide rail, and the multiple groups of clamping measurement assemblies are close to or away from each other through the length-moving guide rail.

[0009] Preferably, a plurality of length-moving guide rails are included, the same group of sliding plates are installed on the sliding blocks of the multiple groups of length-moving guide rails, a width-moving guide rail is installed on the sliding plate, the length direction of the width-moving guide rail is perpendicular to the length direction of the length-moving guide rail, and the clamping measurement assembly is installed on the sliding block of the width-moving guide rail.

[0010] Preferably, first and second limit blocks are respectively installed at the two ends of the length-moving guide rail and the width-moving guide rail.

[0011] Preferably, the clamping measurement assembly comprises a support, the inner measuring vernier caliper and the outer measuring vernier caliper are installed on the support, and a supporting plate is installed below the support, and the supporting plate is parallel to the main scale.

[0012] Preferably, the distance between the inner vernier caliper and the support plate is adjustable.

[0013] Preferably, the inner vernier caliper and the outer vernier caliper are mounted at the top end of the support, the support plate is provided with fasteners, and the support plate slides up and down along the support and is fixed on the support through the fasteners.

[0014] The utility model provides a kind of size measurement tool of electric core shell mouth part, by inserting the measuring claw of two groups of inner measuring vernier caliper into electric core shell, the distance between two inner measuring claws is adjusted to measure the width of mouth in shell, the measuring claw of two groups of outer measuring vernier caliper is clamped electric core shell, the distance between two outer measuring claws is adjusted to measure the width of mouth outside shell. Inner measuring vernier caliper and outer measuring vernier caliper are clamped and simultaneously measure the size of the mouth inside and outside electric core shell, high efficiency, save time cost. Two groups of clamping measurement components are mutually close or far apart in left and right directions by moving length guide rail to adapt to electric core shell of different lengths. Two groups of clamping measurement components are mutually close or far apart in front and back directions by moving width guide rail to adapt to electric core shell of different widths. The distance between inner measuring vernier caliper and support plate is adjustable to adapt to electric core shell of different heights.

[0015] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A three-dimensional structure of the size measurement tool of electric core shell mouth part is provided for the utility model Figure One ;

[0017] Figure 2 A three-dimensional structure of the size measurement tool of electric core shell mouth part is provided for the utility model Figure Two ;

[0018] Figure 3 A three-dimensional structure of the size measurement tool of electric core shell mouth part is provided for the utility model Figure Three .

[0019] Signs: 1, bottom plate;2, move width guide rail;21, first limit block;3, slide plate;4, move thickness guide rail;41, second limit block;5, mounting plate;6, support;7, support plate;71, fastener;8, inner measuring vernier caliper;9, outer measuring vernier caliper. DETAILED DESCRIPTION

[0020] Embodiments of the present application will be described in detail below, examples of which are represented in the drawings, wherein the same or similar symbols represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation on the present application.

[0021] Embodiment 1

[0022] Reference Figures 1 to 3 The inner measuring vernier caliper 8 and the outer measuring vernier caliper 9 of the two sets of clamping measurement assemblies are parallel to each other and the main scales are at the same horizontal height.

[0023] The outer measuring vernier caliper 9 is a normal vernier caliper, and the measuring claw is an outer measuring claw; the inner measuring vernier caliper 8 is an inverted vernier caliper, and the measuring claw is an inner measuring claw.

[0024] Preferably, one set of clamping measurement assemblies is fixedly installed on the bottom plate 1.

[0025] As shown in the figure, two sets of clamping measurement assemblies are included, the bottom plate 1 is installed with a mounting plate 5 and a length-moving guide rail 2, the length direction of the length-moving guide rail 2 is towards the mounting plate 5, one set of clamping measurement assemblies is installed on the mounting plate 5, and the other set of clamping measurement assemblies is installed on the sliding block of the length-moving guide rail 2, and the inner measuring vernier calipers 8 and the outer measuring vernier calipers 9 of the two sets of clamping measurement assemblies are parallel to each other and the main scales are at the same horizontal height.

[0026] When measuring, the measuring claws of the two sets of inner measuring vernier calipers 8 are inserted into the battery shell, the distance between the two inner measuring claws is adjusted to measure the inner opening width of the shell, the measuring claws of the two sets of outer measuring vernier calipers 9 are clamped on the battery shell, and the distance between the two outer measuring claws is adjusted to measure the outer opening width of the shell. The inner measuring vernier caliper 8 and the outer measuring vernier caliper 9 clamp and simultaneously measure the size of the inner and outer openings of the battery shell, which is efficient and saves time and cost. The two sets of clamping measurement assemblies are close to or away from each other in the left-right direction through the length-moving guide rail 2 to adapt to battery shells of different lengths.

[0027] Preferably, there is more than one set of length-moving guide rails 2, the same set of sliding plates 3 are installed on the sliding blocks of the multiple sets of length-moving guide rails 2, the width-moving guide rail 4 is installed on the sliding plate 3, the width-moving guide rail 4 is perpendicular to the length direction of the length-moving guide rail 2, and the clamping measurement assemblies are installed on the sliding block of the width-moving guide rail 4. The two sets of clamping measurement assemblies are close to or away from each other in the front-back direction through the width-moving guide rail 4 to adapt to battery shells of different widths.

[0028] The first limiting block 21 and the second limiting block 41 are respectively arranged at two ends of the length-moving guide rail 2 and the width-moving guide rail 4, so as to prevent the sliding block from falling off.

[0029] The clamping measuring assembly comprises a support 6, an inner measuring vernier caliper 8 and an outer measuring vernier caliper 9, the inner measuring vernier caliper 8 and the outer measuring vernier caliper 9 are arranged on the support 6, and a supporting plate 7 is arranged on the support 6 below the inner measuring vernier caliper 8 and the outer measuring vernier caliper 9, and the supporting plate 7 is parallel to the main ruler.

[0030] Preferably, the distance between the inner measuring vernier caliper 8 and the supporting plate 7 is adjustable to adapt to the battery shell of different heights.

[0031] Preferably, the inner measuring vernier caliper 8 and the outer measuring vernier caliper 9 are arranged at the top end of the support 6, the supporting plate 7 is provided with a fastener 71, the supporting plate 7 slides up and down along the support 6 and is fixed on the support 6 through the fastener 71.

[0032] It should be understood that the terms "length", "width", "upper", "lower", "front", "left", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0033] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0034] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication or interaction relationship of two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] In the utility model, unless another definite provision and limitation, first feature is on second feature "on" or "under" can be first and second feature direct contact, or first and second feature indirectly contact through intermediate medium. Moreover, first feature is on second feature "on", "above" and "on" can be first feature is on second feature directly or obliquely, or only indicate first feature horizontal height is higher than second feature. First feature is on second feature "under", "below" and "under" can be first feature is on second feature directly or obliquely, or only indicate first feature horizontal height is less than second feature.

[0036] The above is only the preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art in the utility model disclosed technical range, according to the utility model technical scheme and the utility model concept are equivalent to replace or change, all should be covered in the protection scope of the utility model.

Claims

1. An electrode casing mouth portion size measuring tool comprising a base plate (1), characterized in that: The bottom plate (1) is provided with at least two sets of clamping measuring assemblies, the relative positions of the multiple sets of clamping measuring assemblies are adjustable, the clamping measuring assembly comprises an inner measuring vernier caliper (8) for measuring the inner opening and an outer measuring vernier caliper (9) for measuring the outer opening, and the multiple sets of inner measuring vernier calipers (8) and outer measuring vernier calipers (9) are parallel to each other and the main scales are located at the same horizontal height.

2. The cell case mouth dimension measuring tool of claim 1, wherein: One of the sets of clamping measuring assemblies is fixedly installed on the bottom plate (1).

3. The cell case mouth dimension measuring tool of claim 2, wherein: The bottom plate (1) is provided with a length-moving guide rail (2) which is fixed in the length direction towards the clamping measuring assembly, and the other clamping measuring assemblies are installed on the sliding blocks of the length-moving guide rail (2), and the multiple sets of clamping measuring assemblies are close to or away from each other through the length-moving guide rail (2).

4. The cell case mouth dimension measuring tool of claim 3, wherein: The multiple sets of length-moving guide rails (2) are provided with the same set of sliding plates (3) on the sliding blocks, the sliding plates (3) are provided with width-moving guide rails (4) which are perpendicular to the length direction of the length-moving guide rails (2), and the clamping measuring assemblies are installed on the sliding blocks of the width-moving guide rails (4).

5. The cell case mouth dimension measuring tool of claim 4, wherein: The length-moving guide rail (2) and the width-moving guide rail (4) are respectively provided with first limiting blocks (21) and second limiting blocks (41) at both ends.

6. The cell case mouth dimension measuring tool according to any one of claims 1 to 5, characterized by: The clamping measuring assembly comprises a support (6), the inner measuring vernier caliper (8) and the outer measuring vernier caliper (9) are installed on the support (6), and a supporting plate (7) is installed on the support (6) below the inner measuring vernier caliper (8) and the outer measuring vernier caliper (9), and the supporting plate (7) is parallel to the main scale.

7. The cell case mouth dimension measuring tool of claim 6, wherein: The distance between the inner measuring vernier caliper (8) and the supporting plate (7) is adjustable.

8. The cell case mouth dimension measuring tool of claim 7, wherein: The inner measuring vernier caliper (8) and the outer measuring vernier caliper (9) are installed at the top end of the support (6), the supporting plate (7) is provided with a fastener (71), the supporting plate (7) slides up and down along the support (6) and is fixed on the support (6) through the fastener (71).