A battery terminal torque testing fixture
By designing a universal vise and a mounting base, the problems of unstable fixing and complex operation of the battery terminal torque testing device were solved, achieving efficient and accurate torque testing and simplifying the operation process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIYUAN WANYANG GREEN ENERGY CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-05-26
AI Technical Summary
Existing battery terminal torque testing devices are unstable, resulting in inaccurate measurements and an inability to effectively detect deformation and breakage of conductive copper sheets. Furthermore, they are complex to operate and have low work efficiency.
The system employs a universal bench vise and a fixed base structure, including a base plate, a base, rotating pressure plate A, and rotating pressure plate B. Through the design of protruding columns and concave holes, it achieves a stable fixation of the battery terminals and uses the rotating pressure plate to limit the conductive copper sheet. A torque wrench is used for torque detection.
It improves the accuracy and efficiency of testing, simplifies the operation process, can quickly identify unqualified products, has a simple and compact structure, and provides good fixation.
Smart Images
Figure CN224286203U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery processing, and in particular to a tooling for testing the torque of battery terminals. Background Technology
[0002] As is well known, battery terminals are key components connecting batteries to external conductors. Their main function is to transmit electrical signals and conduct electricity. They are generally composed of conductive copper sheets and internally threaded posts. The conductive copper sheets are firmly connected to the battery cells or battery modules by welding, bolting, or plugging, while the internally threaded posts are connected to the conductive wires by screws. Therefore, when the screw is tightened into the internally threaded post, a force is generated at the connection between the conductive copper sheet and the internally threaded post. In order to ensure that the quality of the terminals meets the usage requirements, a torque test is performed on the terminals to ensure that when the screw is tightened into the internally threaded post, there will be no breakage or deformation at the connection between the conductive copper sheet and the internally threaded post, and no stripping of the internal threads of the post due to insufficient torque.
[0003] Existing detection devices are as follows: Figure 1 As shown, the testing fixture body 1 is fixed to the table surface using screws in screw holes A3 on its upper side. Multiple grooves 4 are formed on the upper part of the testing fixture body 1, and two screw holes B5 are formed in the front and rear of each groove. Multiple studs 2 are inserted into the front screw holes B5 and tightened with washers and nuts. In use, multiple annular conductive copper sheets of battery terminals are fitted onto the studs 2, while the internally threaded studs are placed in the rear screw holes B5. Washers and nuts are used again to fix the conductive copper sheets onto the studs 2, and finally, bolts are screwed into the internally threaded studs. Only by using an external torque wrench can the test be performed. During the test, a torque wrench is needed to test the torque of the bolt screwed into the internal thread column. Because the above-mentioned testing device is not fixed stably, it is easy to cause inaccurate measurement. Moreover, if there is a crack in the bead of the conductive copper sheet during measurement, the stress point is different because the pad is pressing on the conductive copper sheet, so it is not possible to effectively detect whether the conductive copper sheet is deformed or broken. After testing the battery terminal, it is also necessary to disassemble it to remove the tested battery terminal. The work efficiency is low and the operation is complicated. Summary of the Invention
[0004] In order to overcome the shortcomings of the prior art, this utility model discloses a battery terminal torque testing fixture.
[0005] To achieve the aforementioned objective, this utility model adopts the following technical solution:
[0006] A battery terminal torque testing fixture includes a universal table vise and a fixed base. The universal table vise is fixed to the edge of the table, and the fixed base is set inside the jaws of the universal table vise. The fixed base consists of a base plate, a base, a rotating pressure plate A, and a rotating pressure plate B. The base plate is fixed to the lower middle part of the base. The middle part of the base plate has upwardly extending platform surfaces on both sides. The middle part of the base plate has a convex surface that is higher than the platform surface. The rotating pressure plate A and the rotating pressure plate B are rotatably connected to the platform surface, and their tops are flush with the convex surface.
[0007] Multiple square protrusions are spaced apart along the length of the two platform surfaces. On each side of the square protrusion, there are two recessed holes A and B spaced apart. A protruding post is provided in the outer recessed hole A. The top of the protruding post is on the same horizontal plane as the top of the square protrusion.
[0008] Multiple concave semi-rings B are provided at intervals along the length of the inner edge of rotating pressure plate A and rotating pressure plate B, and concave semi-rings A corresponding to the concave semi-rings B are provided on both sides of the convex surface.
[0009] The aforementioned battery terminal torque testing fixture has at least two screw holes A on the base. The bolts in the screw holes A pass through the corresponding screw holes B under the base plate to fix the base and the base plate together.
[0010] The aforementioned battery terminal torque testing fixture has recessed surfaces on both sides of the platform surface, and a rotating shaft is inserted inside the platform surface along its length. The lower sides of the rotating pressure plate A and the rotating pressure plate B are provided with downwardly extending connecting ears. Both ends of the rotating shaft are rotatably connected to the rotating holes of the connecting ears, and the connecting ears are respectively located on the recessed surfaces.
[0011] The aforementioned battery terminal torque testing fixture has recesses formed between the two sides of the convex surface and the two sides of the two side platform surfaces.
[0012] The aforementioned battery terminal torque testing fixture has rotating pressure plate A and rotating pressure plate B fastened to both sides of the convex surface, and the concave semi-ring B and concave semi-ring A form a complete circle structure.
[0013] The aforementioned battery terminal torque testing fixture has a recessed hole B located at the lower part of the concave semi-ring A, and is concentrically positioned with the concave semi-ring A vertically.
[0014] Due to the adoption of the above technical solution, this utility model has the following beneficial effects:
[0015] The battery terminal torque testing fixture of this utility model involves placing the conductive copper sheet of the battery terminal onto the protruding post, inserting the internally threaded post into the concave semi-ring A, flipping the rotating pressure plate onto the platform surface, and tightening the bolt into the internally threaded post. Finally, a torque wrench is used for torque testing. During this testing process, the rotating pressure plate only limits the movement of the conductive copper sheet. If a crack appears at the opening of the conductive copper sheet, the battery terminal can be identified as unqualified by observing the torque value. This utility model has a simple and compact structure and is easy to use. The use of a universal vise to fix the fixing base provides good stability and effectively improves the testing effect. Testing can be performed simply by screwing the bolt into the internally threaded post, avoiding the frequent tightening of nuts in the prior art and improving work efficiency. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the existing technology.
[0017] Figure 2 This is a schematic diagram of the structure of this utility model.
[0018] Figure 3 This is a structural schematic diagram of the fixing base of this utility model.
[0019] Figure 4 This is a schematic diagram of the structure of this utility model without the rotating pressure plate on the fixed base.
[0020] In the diagram: 1. Inspection fixture body; 2. Stud; 3. Screw hole A; 4. Groove; 5. Screw hole B;
[0021] 6. Rotating pressure plate A; 7. Rotating pressure plate B; 8. Rotating shaft; 9. Seat plate; 10. Base; 11. Universal table vise; 12. Convex surface; 13. Concave semi-ring A; 14. Concave semi-ring B; 15. Platform surface; 16. Recessed surface; 17. Rotating shaft; 18. Concave hole A; 19. Concave hole B; 20. Protruding column; 21. Concave platform; 22. Square boss. Detailed Implementation
[0022] The present invention will be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.
[0023] Combined with appendix Figure 2-4The aforementioned battery terminal torque testing fixture includes a universal table vise 11 and a fixed base. The universal table vise 11 is fixed to the edge of a table, and the fixed base is disposed within the jaws of the universal table vise 11. The fixed base consists of a base plate 9, a base 10, a rotating pressure plate A6, and a rotating pressure plate B7. The base plate 9 is fixed to the lower center of the base 10. The center of the base plate 9 has upwardly extending platform surfaces 15 on both sides. The center of the base plate 9 has an upwardly extending convex surface 12 that is higher than the platform surface 15. The rotating pressure plates A6 and B7 are rotatably connected to the platform surface 15, and their surfaces are aligned with the convex surface 12. The platform is flush with the sides; multiple square protrusions 22 are spaced apart along the length of the two side platform surfaces 15. Two recessed holes A18 and B19 are spaced apart on both sides of the square protrusions 22. A protruding post 20 is provided in the outer recessed hole A18. The top of the protruding post 20 is on the same horizontal plane as the top of the square protrusion 22. Multiple concave semi-rings B14 are spaced apart along the length of the inner edge of the rotating pressure plate A6 and the rotating pressure plate B7. Concave semi-rings A13 corresponding to the concave semi-rings B14 are opened on both sides of the convex surface 12.
[0024] Specifically, at least two screw holes A are provided on the base 10, and the bolts in the screw holes A pass through the corresponding screw holes B under the base plate 9 to fix the base 10 and the base plate 9 together.
[0025] Specifically, both sides of the platform surface 15 are provided with recessed surfaces 16, and a rotating shaft 17 is inserted inside it along the length direction of the platform surface 15. The lower sides of the rotating pressure plate A6 and the rotating pressure plate B7 are provided with downwardly extending connecting ears. Both ends of the rotating shaft 17 are rotatably connected in the rotating holes of the connecting ears, and the connecting ears are respectively located on the recessed surfaces 16.
[0026] Specifically, recessed platforms 21 are formed between the two sides of the convex surface 12 and the two sides of the two platform surfaces 15.
[0027] Specifically, after the rotating pressure plate A6 and rotating pressure plate B7 are fastened to both sides of the convex surface 12, the concave semi-ring B14 and the concave semi-ring A13 form a complete circle structure.
[0028] Specifically, the concave hole B19 is located at the lower part of the concave semi-ring A13 and is concentrically positioned with the concave semi-ring A13.
[0029] When using the battery terminal torque testing fixture described in this utility model, the universal vise 11 is fastened to the edge of the table. The universal vise 11 is an externally purchased component, and its specific structure will not be detailed here. The base 10 of the fixing seat is placed into the jaws of the universal vise 11, and the wrench of the universal vise 11 is turned to drive the clamps to fix the base 10. The rotating pressure plates A6 and B7 are flipped outward, and the conductive copper sheet of the battery terminal is fitted onto the protrusion 20. The internal thread is inserted into the corresponding concave hole B19. The size of the concave hole B19 and the diameter of the protrusion 20 are determined by the model of the battery terminal. The multiple concave holes B19 and protrusions 20 on the platform surface 15 are of different sizes to accommodate various battery terminal models. The rotating pressure plates are then... A6 and rotating pressure plate B7 cover the platform surface 15, making the concave semi-ring A13 and concave semi-ring B14 form a complete circular structure. The top surfaces of rotating pressure plates A6 and B7 are flush with the top surface of convex surface 12. The bolt is screwed into the internal threaded column, and the bolt head is pressed on rotating pressure plates A6 and B7. The rotating pressure plates A6 and B7 limit the conductive copper sheet. A torque wrench is used to test the torque of the bolt screwed into the internal threaded column. The measured torque value is qualified if it meets the set range, and unqualified if it does not meet the set range. Due to the structural design of this utility model, it is not only firmly fixed, but also easy to install and disassemble, which greatly improves work efficiency compared with the prior art.
[0030] The parts of this utility model not described in detail are existing technologies.
[0031] The embodiments selected herein for the purpose of disclosing the inventive objectives of this utility model are currently considered appropriate; however, it should be understood that this utility model is intended to include all variations and modifications of the embodiments that fall within the scope of this concept and utility model.
Claims
1. A battery terminal torque testing fixture, comprising a universal vise and a fixed base, characterized in that: The universal table vise is fixed to the edge of the table, and the fixing seat is set inside the jaws of the universal table vise. The fixing seat consists of a base plate, a base, rotating pressure plate A, and rotating pressure plate B. The base plate is fixed to the lower center of the base. The center of the base plate has upward-extending platform surfaces on both sides. The center of the base plate has a convex surface that extends upward above the platform surfaces. Rotating pressure plates A and B are rotatably connected to the platform surfaces, and their tops are flush with the convex surfaces. Multiple square bosses are spaced along the length of the two platform surfaces. On each side of the square bosses, there are two recessed holes A and B spaced apart. A protruding post is provided in the outer recessed hole A. The top of the protruding post is on the same horizontal plane as the top of the square boss. Multiple concave semi-rings B are spaced along the length of the inner edges of rotating pressure plates A and B. Concave semi-rings A corresponding to the concave semi-rings B are opened on the two sides of the convex surfaces.
2. The battery terminal torque testing fixture according to claim 1, characterized in that: At least two screw holes A are provided on the base. The bolts in screw holes A pass through the corresponding screw holes B under the base plate to fix the base and the base plate together.
3. The battery terminal torque testing fixture according to claim 1, characterized in that: Both sides of the platform surface are provided with recessed surfaces, and a rotating shaft is inserted inside the platform surface along its length. The lower sides of the rotating pressure plate A and rotating pressure plate B are provided with downwardly extending connecting ears. Both ends of the rotating shaft are rotatably connected to the rotating holes of the connecting ears, and the connecting ears are located on the recessed surfaces.
4. The battery terminal torque testing fixture according to claim 1, characterized in that: Concave platforms are formed between the two sides of the convex surface and the two sides of the two platform surfaces.
5. The battery terminal torque testing fixture according to claim 1, characterized in that: After the rotating pressure plate A and rotating pressure plate B are fastened to the two sides of the convex surface, the concave semi-ring B and the concave semi-ring A form a complete circle structure.
6. The battery terminal torque testing fixture according to claim 1, characterized in that: The concave hole B is located at the lower part of the concave semi-ring A and is concentrically positioned with the concave semi-ring A.