Measurement jig for included angle of roll core tab
By designing a fixture for measuring the angle of the core-elbow, the problem of complex measurement, low accuracy and easy-to-damage products in the prior art is solved, efficient and accurate measurement is achieved, product integrity is protected, and production efficiency is improved.
Patent Information
- Application Number
- CN202421098916.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-05-20
AI Technical Summary
The existing method of measuring angles between positive and negative cores of the coil core is complex in operation, has low accuracy, is easy to damage products, and is inefficient, making it difficult to meet the needs of large-scale production.
A core-rolling ear angle measurement fixture is designed, including abutment, standard block and test bench. By placing the core body on the abutment and using the standard design of the standard block and test bench, the angle between the pole ear is accurately measured to determine whether the core is qualified.
The fixture protects the integrity of the extreme ears, improves the consistency of angles, avoids the scrapping of the core, simplifies the inspection process, and improves the inspection efficiency and production efficiency.
Smart Images
Figure CN222824980U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of battery testing, in particular to a measuring tool for measuring the angle of a winding core tab. Background Art
[0002] With the continuous advancement of battery technology, the consistency requirements of battery processes are also increasing. In the preparation process of battery cores, the relative position of the positive and negative tabs, especially the angle between them, has become an important indicator for evaluating battery quality.
[0003] In the traditional production process, in order to measure this angle, the commonly used method includes disassembling the core and using CCD to measure the distance between the two tabs, and then converting the angle. Another method is to manually fold the tab flat and then use CCD to measure. However, the existing measurement methods have the following disadvantages:
[0004] First, the diversity of measurement methods leads to inconsistent operating procedures. In addition, the differences in manual point selection and the cumbersomeness of conversion methods not only reduce the effectiveness of detection, but also increase operational difficulty and error rate.
[0005] Second, the effect of manually folding the tabs varies greatly, which can easily damage the tabs and affect the quality and service life of the battery.
[0006] Third, disassembling the core for measurement is not only time-consuming and labor-intensive, but once disassembled, the core often cannot be restored to its original state, which directly leads to product scrapping, resulting in waste of resources and increased costs.
[0007] Fourth, the CCD measurement method requires manual operation and complex conversion steps during the measurement process, which is inefficient and difficult to meet the needs of large-scale production.
[0008] Therefore, the existing method for measuring the angle between the positive and negative ears of the winding core is not only complicated to operate, has low accuracy, and is easy to damage the product, but also has low efficiency and urgently needs to be improved. Summary of the invention
[0009] The utility model aims to overcome the shortcomings of the prior art and provide a measuring tool for the angle of a winding core tab.
[0010] The purpose of this utility model is achieved through the following technical solutions:
[0011] A measuring tool for measuring the angle of a winding core tab, the winding core comprising a winding core body, a first tab and a second tab, the winding core body being provided with a first end face and a second end face opposite to each other, the first tab being led out from the first end face, and the second tab being led out from the second end face, the tool comprising:
[0012] A base, the base being used to support and position the winding core body;
[0013] A standard block, the standard block is arranged on the base, and the standard block is provided with a supporting surface and a standard surface;
[0014] A test bench, the test bench is arranged on the base, and a test surface is arranged on the test bench;
[0015] When performing the pole ear angle measurement operation, the first end face is fitted with the abutting surface, and the first pole ear is fitted with the standard surface. In this state, if the second pole ear can completely fall on the test surface, the core is judged as a good product. If the second pole ear cannot completely fall on the test surface, the core is judged as a defective product.
[0016] In one embodiment, the base is provided with a horizontal surface, the abutting surface is perpendicular to the horizontal surface, and when the tab angle measurement operation is performed, the side edge of the first tab abuts against the horizontal surface.
[0017] In one embodiment, the base is provided with an arc groove matching the side wall of the winding core body.
[0018] In one embodiment, the base, the standard block and the test bench are integrally formed and prepared.
[0019] In one embodiment, the width of the arc-shaped groove is consistent with the height of the winding core body.
[0020] In one embodiment, the test bench is arranged along the edge of the arc-shaped groove, and the test surface is connected to the arc-shaped groove.
[0021] In one embodiment, the test bench is centrally arranged at the edge of the arc-shaped groove, and the test bench is connected to the arc-shaped groove to form a symmetrical structure.
[0022] In one embodiment, the width of the test surface is greater than the width of the second electrode tab.
[0023] In one embodiment, the test surface is an arc-shaped concave surface, and the curvature of the arc-shaped concave surface is consistent with that of the second electrode tab.
[0024] In one embodiment, a slot is provided on the test bench, the slot is used to limit the second pole ear, the standard surface is an arcuate convex surface, the arcuate convex surface matches the curvature of the side wall of the winding core, and a scale is provided on the arcuate convex surface.
[0025] Compared with the prior art, the utility model has at least the following advantages:
[0026] 1. No damage to the tabs: The unique design of the fixture makes it unnecessary to shape or flatten the tabs of the wound core during the measurement process. In traditional measurement methods, manual shaping or flattening of the tabs often causes damage to the tabs, but this fixture completely avoids this problem, protects the integrity of the tabs, and thus ensures the safety and performance of the battery.
[0027] 2. Good angle consistency: The angle of the core lugs can be accurately measured and determined through the standard block and test bench of the jig. This standardized measurement method is not only accurate, but also has good reproducibility, which significantly improves the consistency of the angle of the core lugs after the jig test. This is crucial to ensure quality control during the battery production process.
[0028] 3. No core scrapping: Compared with traditional disassembly or damaging measurement methods, this jig will not cause any destructive effects on the core during the measurement process. Therefore, even if the core does not meet the standards after measurement, it can be readjusted or used for other purposes instead of being directly scrapped like traditional methods, which greatly reduces production costs and resource waste.
[0029] 4. Optimize detection efficiency and improve production capacity: Using this fixture for measurement, there is no need to rely on manual CCD measurement, which greatly simplifies the measurement steps, shortens the measurement time, and significantly improves the detection efficiency of the first inspection. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0031] Figure 1 It is a structural schematic diagram of a winding core tab angle measuring fixture according to one embodiment of the utility model;
[0032] Figure 2 for Figure 1 A schematic diagram of the structure of the winding core tab angle measurement fixture when in use.
[0033] The numbers in the figure are: 10, measuring fixture for the angle of the winding core lug; 100, base; 110, horizontal table surface; 120, arc groove; 200, standard block; 210, supporting surface; 220, standard surface; 300, test bench; 310, test surface; 400, winding core body; 410, first end surface; 420, second end surface; 500, first lug; 600, second lug. DETAILED DESCRIPTION
[0034] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the relevant drawings. The drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.
[0035] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.
[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific implementations and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.
[0037] See also Figure 1 and Figure 2 A measuring fixture (10) for measuring the angle of a winding core and a pole lug, wherein the winding core comprises a winding core body (400), a first pole lug (500) and a second pole lug (600), the winding core body (400) is provided with a first end face (410) and a second end face (420) opposite to each other, the first pole lug (500) is led out from the first end face (410), and the second pole lug (600) is led out from the second end face (420), and the fixture comprises:
[0038] A base (100), the base (100) is used to support and position the winding core body (400);
[0039] A standard block (200), the standard block (200) is arranged on the base (100), and the standard block (200) is provided with a supporting surface (210) and a standard surface (220);
[0040] A test bench (300), the test bench (300) is arranged on the base (100), and a test surface (310) is arranged on the test bench (300);
[0041] When performing the operation of measuring the angle of the pole lug, the first end face (410) is fitted with the abutting face (210), and the first pole lug (500) is fitted with the standard face (220). In this state, if the second pole lug (600) can completely fall on the test face (310), the winding core is judged to be a good product; if the second pole lug (600) cannot completely fall on the test face (310), the winding core is judged to be a defective product.
[0042] It should be noted that the jig provided by the utility model is easy to operate. It only needs to place the winding core body (400) on the base (100), align the first pole lug (500) and the second pole lug (600) with the standard block (200) and the test bench (300) respectively, and the measurement can be completed quickly. It can quickly and accurately measure the pole lug angle of the winding core, so as to judge whether the product is qualified. The winding core pole lug angle measurement jig (10) not only protects the integrity of the pole lug through its unique design and function, but also can detect defective products in time, improve the consistency of the winding core pole lug angle, and optimize the detection process, improve production efficiency, and these technical effects together bring significant economic benefits and quality improvement to battery manufacturers.
[0043] See also Figure 1 and Figure 2 Furthermore, the base (100) is provided with a horizontal surface (110), the abutting surface (210) is perpendicular to the horizontal surface (110), and when performing the operation of measuring the angle of the pole lug, the side edge of the first pole lug (500) abuts against the horizontal surface (110).
[0044] It should be noted that, during measurement, the first end face (410) of the winding core body (400) is fitted against the abutting face (210), and then the side edge of the first pole ear (500) is abutted against the horizontal surface (110) and the first pole ear (500) is fitted against the standard surface (220). In this way, the first pole ear (500) and the standard surface (220) can be quickly aligned through the horizontal surface (110), thereby greatly improving the efficiency and accuracy of the measurement.
[0045] See also Figure 1 and Figure 2 Furthermore, an arc-shaped groove (120) matching the side wall of the winding core body (400) is formed on the base (100).
[0046] It should be noted that the operator only needs to place the side wall of the core body (400) upright in the arc groove (120) to complete the basic positioning of the core body (400) on the base (100), and then rotate the core in the arc groove (120) until the first pole ear (500) abuts against the horizontal surface (110), thereby adjusting the core to the standard position in the fixture, which greatly simplifies the positioning steps and improves work efficiency.
[0047] See also Figure 1 and Figure 2 Furthermore, the width of the arc groove (120) is consistent with the height of the core body (400).
[0048] It should be noted that, since the width of the arc groove (120) matches the height of the core body (400), the core will not protrude or block the test bench (300) after being placed in the arc groove (120). This provides a clear field of vision for the operator, making it easy to observe the comparison between the second pole ear (600) and the test bench (300). The clear field of vision and smooth operation process reduce the possibility of misoperation, and the operator can compare and measure more accurately, thereby improving the accuracy and reliability of the measurement.
[0049] See also Figure 1 and Figure 2 Furthermore, the test bench (300) is arranged along the edge of the arc-shaped groove (120), and the test surface (310) is connected to the arc-shaped groove (120).
[0050] It should be noted that the position of the test bench (300) at the edge of the arc groove (120) is set according to a preset angle so that the angle between the test surface (310) and the standard surface (220) reaches a preset winding core tab angle range, so that the second tab (600) of the standard winding core can fall smoothly on the test surface (310).
[0051] In one embodiment, the test bench (300) is centrally arranged at the edge of the arc-shaped groove (120), and the test bench (300) and the arc-shaped groove (120) are connected to form a symmetrical structure.
[0052] That is, when the standard angle between the first pole tab (500) and the second pole tab (600) is about 90°, the test bench (300) is centrally arranged at the edge of the arc groove (120), so that the jig can quickly complete the measurement of the winding core.
[0053] See also Figure 1 and Figure 2 Furthermore, the width of the test surface (310) is greater than the width of the second electrode tab (600).
[0054] It should be noted that due to various factors in the manufacturing process, such as material properties, processing accuracy, etc., the angle of the pole lug of the winding core may not be completely accurate. This design takes into account the errors and imperfections that may exist in actual operation, and allows a certain error range for the angle between the first pole lug (500) and the second pole lug (600). Although the width of the test surface (310) is slightly larger than the width of the second pole lug (600), this design does not mean that any error can be tolerated. The tolerance range (such as ±10%) is set based on product quality requirements and production practice, aiming to balance manufacturing accuracy and product qualification rate.
[0055] See also Figure 1 and Figure 2 Furthermore, the test surface (310) is an arc-shaped concave surface, and the curvature of the arc-shaped concave surface is consistent with the second electrode tab (600).
[0056] It should be noted that this special design fully considers the characteristics of the winding core, and the second pole ear (600) also has a certain curvature along the width direction. Designing the test surface (310) as the same arc-shaped concave surface can ensure better fit between the two. This improved fit helps to ensure the accuracy and reliability of the measurement.
[0057] See also Figure 1 and Figure 2 Furthermore, the base (100), the standard block (200) and the test bench (300) are integrally formed and prepared.
[0058] It should be noted that, since the base (100), the standard block (200) and the test bench (300) are integrally formed, the connection between them is more secure and less likely to become loose or deformed. At the same time, since they are integrally formed, the base (100), the standard block (200) and the test bench (300) can be made of the same material, ensuring the consistency of material properties. This consistency helps to reduce measurement errors caused by material differences.
[0059] In another embodiment, a slot is provided on the test bench (300) for limiting the second pole ear (600), the standard surface (220) is an arcuate convex surface, the arcuate convex surface matches the curvature of the side wall of the winding core, and a scale is provided on the arcuate convex surface.
[0060] It should be noted that, in this embodiment, after the winding core body (400) is placed on the base (100), the operator will first limit and fix the second pole ear (600) in the slot. The advantage of doing so is that it ensures that the second pole ear (600) will not move or misalign during the measurement process, thereby greatly improving the accuracy of the measurement. Subsequently, the operator will observe the position of the first pole ear (500) on the standard surface (220), and accurately determine the angle between the first pole ear (500) and the second pole ear (600) based on the scale on the arc convex surface, so that the fixture can be used for testing winding cores with different pole ear angles, thereby increasing the trial range of the fixture.
[0061] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. A measuring tool for measuring the angle of a winding core tab, wherein the winding core comprises a winding core body, a first tab and a second tab, wherein the winding core body is provided with a first end face and a second end face opposite to each other, wherein the first tab is led out from the first end face, and the second tab is led out from the second end face, wherein: The fixtures include: A base, the base is used to support and position the winding core body; A standard block, the standard block is arranged on the base, and the standard block is provided with a supporting surface and a standard surface; A test bench, the test bench is arranged on the base, and a test surface is arranged on the test bench; When performing the pole ear angle measurement operation, the first end face is fitted with the abutting surface, and the first pole ear is fitted with the standard surface. In this state, if the second pole ear can completely fall on the test surface, the core is judged as a good product. If the second pole ear cannot completely fall on the test surface, the core is judged as a defective product.
2. The winding core lug angle measuring jig according to claim 1, characterized in that: The base is provided with a horizontal surface, the abutting surface is perpendicular to the horizontal surface, and when the tab angle measurement operation is performed, the side edge of the first tab abuts against the horizontal surface.
3. The winding core lug angle measuring jig according to claim 1, characterized in that: The base is provided with an arc groove matching the side wall of the winding core body.
4. The winding core lug angle measuring jig according to claim 3, characterized in that: The base, the standard block and the test bench are manufactured by integrated molding.
5. The winding core lug angle measuring jig according to claim 3, characterized in that: The width of the arc groove is consistent with the height of the winding core body.
6. The winding core lug angle measuring jig according to claim 3, characterized in that: The test bench is arranged along the edge of the arc-shaped groove, and the test surface is connected to the arc-shaped groove.
7. The winding core tab angle measuring jig according to claim 6, characterized in that: The test bench is centrally arranged at the edge of the arc-shaped groove, and the test bench is connected with the arc-shaped groove to form a symmetrical structure.
8. The winding core tab angle measuring jig according to claim 3, characterized in that: The width of the test surface is greater than the width of the second electrode tab.
9. The winding core tab angle measuring jig according to claim 5, characterized in that: The test surface is an arc-shaped concave surface, and the curvature of the arc-shaped concave surface is consistent with that of the second electrode tab.
10. The winding core tab angle measuring jig according to claim 1, characterized in that: The test bench is provided with a slot for limiting the second pole ear. The standard surface is an arcuate convex surface, which matches the curvature of the side wall of the winding core, and a scale is provided on the arcuate convex surface.