Inspection jig for insulating cover
By designing an insulation cover inspection fixture, which utilizes positioning blocks and top blocks to arch up the inspection waste, the problem of low insulation cover inspection efficiency is solved, and the inspection accuracy and battery system safety are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-23
- Publication Date
- 2026-04-07
AI Technical Summary
In existing technologies, the detection efficiency of insulating covers is low and they are prone to being missed, which affects the safety protection performance of battery systems.
An insulation cover inspection fixture was designed, comprising a fixture body, a positioning block, and a top block. The positioning block quickly positions the insulation cover, and the top block is used to bulge and detect residual waste. Combined with the detection line and contour line, the detection accuracy and efficiency are improved.
It enables rapid and accurate detection of waste residue on the insulating cover, improving detection efficiency and ensuring the safety performance of the battery system.
Smart Images

Figure CN224096027U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of insulation cover inspection technology, and in particular to an inspection fixture for insulation covers. Background Technology
[0002] As the integration of electric vehicle batteries increases, the battery structure has evolved into a design where cells are directly connected to the casing, leading to an increase in the size of the insulating cover covering the cell surface. For example... Figure 1 As shown, the insulating cover needs to have clearance openings at the protruding parts of the corresponding positive and negative electrodes of the battery cell for clearance. However, the large number and dense distribution of clearance openings can easily lead to waste material residue during the cutting process. The current manual visual inspection method has problems such as low inspection efficiency and high missed detection rate, which in turn affects the safety protection performance of the battery system. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide an inspection fixture for insulating covers so that operators can quickly observe whether there is any waste residue on the insulating covers.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an inspection fixture for an insulating cover, comprising a fixture body, wherein the top surface of the fixture body is provided with a positioning block adapted to the process positioning hole of the insulating cover, and the top surface of the positioning block is higher than the top surface of the top block.
[0005] The top surface of the fixture body is provided with multiple top blocks corresponding to the clearance holes of the insulating cover.
[0006] Furthermore, the fixture body is provided with multiple mounting holes, and the top block is detachably connected to the mounting holes.
[0007] Furthermore, the shape of the mounting hole is geometrically similar to that of the clearance hole, the size of the mounting hole is 1mm to 2mm smaller than the size of the clearance hole, and the fixture body is provided with a detection line surrounding the mounting hole.
[0008] Furthermore, the top block is threadedly connected to or transitionally fitted with the mounting hole.
[0009] Furthermore, the top block is adhered to the mounting hole.
[0010] Furthermore, the top surface of the fixture body is provided with a contour line, which is used to detect the contour dimensions of the insulating cover.
[0011] Furthermore, the distance between the top surface of the top block and the top surface of the fixture body is 5mm to 7mm.
[0012] Furthermore, the top block is cylindrical.
[0013] Furthermore, the diameter of the top block is 6mm to 12mm.
[0014] The beneficial effects of this utility model are as follows: a positioning block and a top block are set on the fixture body. The positioning block helps the operator to quickly position the insulating cover. During the process of placing the insulating cover on the top surface of the fixture body, if there is waste material residue on the clearance hole, it will be arched by the corresponding top block, so that the operator can quickly observe whether there is waste material residue on the insulating cover. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the insulating cover.
[0016] Figure 2 This is a schematic diagram of the structure of an inspection fixture for an insulating cover proposed in this utility model;
[0017] Label Explanation:
[0018] 1. Fixture body; 11. Positioning block; 12. Top block; 13. Mounting hole; 14. Outline;
[0019] 2. Insulating cover; 21. Process positioning hole; 22. Clearance hole. Detailed Implementation
[0020] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.
[0021] Please refer to Figure 1 and Figure 2 As shown, the present invention provides an inspection fixture for an insulating cover, comprising a fixture body 1, wherein the top surface of the fixture body 1 is provided with a positioning block 11 adapted to the process positioning hole 21 of the insulating cover 2, and the top surface of the positioning block 11 is higher than the top surface of the top block 12; the top surface of the fixture body 1 is provided with a plurality of top blocks 12 corresponding to the positions of the clearance holes 22 of the insulating cover 2.
[0022] Working principle: The insulating cover 2 can be quickly positioned above the fixture body 1 through the process positioning hole 21 and the positioning block 11. Then, the operator can operate the insulating cover 2 to gradually approach the fixture body 1 along the positioning block 11. During the process of approaching the fixture body 1, if there is waste material residue on the clearance hole 22, it will be arched by the corresponding top block 12, so that the operator can quickly observe whether there is waste material residue on the insulating cover 2.
[0023] In some implementations, please refer to Figure 2As shown, the fixture body 1 is provided with multiple mounting holes 13, and the top block 12 is detachably connected to the mounting holes 13. By adopting the method of detachably connecting the top block 12 to the mounting holes 13, the position of the top block 12 on the fixture body 1 can be adapted to the insulating cover 2 to be tested, thereby improving the flexibility of the fixture body 1 in use.
[0024] In some embodiments, the shape of the mounting hole 13 is geometrically similar to that of the clearance hole 22, and the size of the mounting hole 13 is 1 mm to 2 mm smaller than that of the clearance hole 22. The fixture body 1 is provided with detection lines (not shown in the figure) surrounding the mounting hole 13. Since the insulating cover 2 is cut by a cutting roller to remove the clearance holes 22, if the position of one clearance hole 22 is offset, the other clearance holes 22 will also be offset. Therefore, after the insulating cover 2 is placed on the fixture body 1, by observing whether there is a gap between the detection lines surrounding one mounting hole 13 and the edge of the clearance hole 22, insulating cover 2 products with deviations in the cutting position of the clearance holes 22 can be preliminarily screened.
[0025] It is worth noting that the more detection lines surrounding the mounting hole 13, the higher the accuracy of detecting whether there is a deviation in the clearance hole 22. Preferably, four detection lines are evenly arranged around the mounting hole 13.
[0026] In some embodiments, the top block 12 is threadedly connected to or transitionally fitted with the mounting hole 13. Using a threaded connection or transitional fit to assemble the top block 12 with the mounting hole 13 ensures that the top block 12 will not tip over on the fixture body 1.
[0027] It is worth noting that when the mounting hole 13 is a round hole, and the connection between the top block 12 and the mounting hole 13 is cylindrical, the connection between the top block 12 and the mounting hole 13 can be a threaded connection or a transition fit. If the mounting hole 13 is a rectangular hole or an irregularly shaped hole, the connection between the top block 12 and the mounting hole 13 is a transition fit.
[0028] In some embodiments, the top block 12 is adhered to the mounting hole 13. Adhesion allows for assembly between the top block 12 and the mounting hole 13, ensuring that the top block 12 will not tip over on the fixture body 1.
[0029] It is worth noting that the adhesive can be applied using double-sided tape or by applying glue in dots.
[0030] In some implementations, please refer to Figure 2As shown, the top surface of the fixture body 1 is provided with a contour line 14, which is used to detect the contour dimensions of the insulating cover 2. Before placing the insulating cover 2, the operator can determine the placement direction of the insulating cover 2 based on the contour line 14, avoiding the need to inspect the insulating cover 2 backwards. Furthermore, after the insulating cover 2 is attached to the fixture body 1, the operator can observe whether the edge contour of the insulating cover 2 matches the contour line 14 to preliminarily screen out products with unqualified insulating cover 2 contour dimensions.
[0031] In some embodiments, the distance between the top surface of the top block 12 and the top surface of the fixture body 1 is 5 mm to 7 mm. The distance between the top surface of the top block 12 and the top surface of the fixture body 1 is limited so that the insulating cover 2 with waste residue in the clearance hole 22 can also be placed on the fixture body 1, and the waste residue can also be arched to a certain extent.
[0032] In some embodiments, the top block 12 is cylindrical. Preferably, the diameter of the top block 12 is 6 mm to 12 mm. The cylindrical top block 12 is easy to manufacture and has a larger area for holding up waste residue.
[0033] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A testing fixture for insulating covers, characterized in that: The fixture includes a fixture body, the top surface of which is provided with a positioning block that is adapted to the process positioning hole of the insulating cover, and the top surface of the positioning block is higher than the top surface of the top block. The top surface of the fixture body is provided with multiple top blocks corresponding to the clearance holes of the insulating cover.
2. The inspection fixture for the insulating cover according to claim 1, characterized in that: The fixture body is provided with multiple mounting holes, and the top block is detachably connected to the mounting holes.
3. The inspection fixture for the insulating cover according to claim 2, characterized in that: The shape of the mounting hole is geometrically similar to that of the clearance hole, and the size of the mounting hole is 1mm to 2mm smaller than that of the clearance hole. The fixture body is provided with a detection line surrounding the mounting hole.
4. The inspection fixture for the insulating cover according to claim 2, characterized in that: The top block is threaded or transitionally fitted with the mounting hole.
5. The inspection fixture for the insulating cover according to claim 2, characterized in that: The top block is attached inside the mounting hole.
6. The inspection fixture for the insulating cover according to claim 1, characterized in that: The top surface of the fixture body is provided with a contour line, which is used to detect the contour dimensions of the insulating cover.
7. The inspection fixture for the insulating cover according to claim 1, characterized in that: The distance between the top surface of the top block and the top surface of the fixture body is 5mm to 7mm.
8. The inspection fixture for the insulating cover according to claim 1, characterized in that: The top block is cylindrical.
9. The inspection fixture for the insulating cover according to claim 8, characterized in that: The diameter of the top block is 6 mm to 12 mm.