CN219369383U - Lug and connection piece tensile force testing tool - Google Patents
Lug and connection piece tensile force testing tool Download PDFInfo
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- CN219369383U CN219369383U CN202320131090.2U CN202320131090U CN219369383U CN 219369383 U CN219369383 U CN 219369383U CN 202320131090 U CN202320131090 U CN 202320131090U CN 219369383 U CN219369383 U CN 219369383U
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- tab
- clamping
- bottom plate
- connecting sheet
- lug
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model provides a tension testing tool for a tab and a connecting sheet, which comprises pressing blocks, a bottom plate and a clamping mechanism, wherein at least two pressing blocks are arranged on the bottom plate, the two pressing blocks are detachably connected with the bottom plate, and the relative distance between the two pressing blocks is adjustable; the pressing blocks are used for clamping and fixing the connecting sheet in a matched mode, the lug is welded on the connecting sheet, and the welding part of the lug and the connecting sheet is located between the two pressing blocks; the clamping mechanism is used for clamping the lug and is connected with the traction mechanism to apply tension to the lug. According to the structure, the distance between the two pressing blocks is adjustable, so that when the connecting sheet is clamped and fixed, the welding area between the connecting sheet and the lug can be avoided, and the accuracy of a test result is prevented from being influenced; meanwhile, the pressing block and the bottom plate are detachable and matched to clamp the connecting sheet, compared with the elastic piece, the clamping force is provided, the pressing block has the advantage of stable clamping, and the pressing block is of a detachable structure, so that the connecting sheet is convenient to install.
Description
Technical Field
The utility model relates to the technical field of battery production, in particular to a tab and connecting sheet tensile force testing tool.
Background
In the battery structure, be provided with the utmost point ear on the battery core, the utmost point ear needs welding connection piece to connect through the utmost point post of connection piece and battery, the welding stability of connection piece and utmost point ear can directly relate to the security performance of battery, consequently, in battery production, need test the welding strength of utmost point ear and connection piece, in order to ensure that the welding strength of utmost point ear and connection piece is qualified.
The present patent of the utility model with the publication number of CN217111791U discloses a tab welding tension test fixture, which comprises: the first clamp block is provided with a through groove penetrating through the first clamp in the horizontal direction and comprises a top surface, and the top surface is provided with an opening penetrating through the through groove in the vertical direction; the second fixture block is arranged in the through groove, the top end of the second fixture block is adjustably abutted to the first fixture block along the vertical direction, the top end of the second fixture block covers the opening, and the top end of the second fixture block is a horizontal plane.
In the above technical scheme, it is through first anchor clamps piece cooperation second anchor clamps piece to the connection piece centre gripping, is provided with the opening on the first anchor clamps piece and is used for drawing forth the utmost point ear, and this clamping structure has two points not enoughly:
the method comprises the following steps: the lug is bent into an L shape and welded on the connecting sheet, the clamping structure is easy to clamp to a welding area in the lug and the connecting sheet, and the lug and the connecting sheet are affected by clamping force in the process of pulling the lug for testing, so that the connection strength of the lug and the connecting sheet can be improved, and the welding strength of the lug and the connecting sheet cannot be accurately measured in the process of testing;
and two,: above-mentioned test fixture, second anchor clamps piece rely on the spring to provide clamping force, so, when placing the connection piece to first anchor clamps piece and second anchor clamps piece in the middle of, need press first second anchor clamps piece compression spring, if the elasticity of spring is little, can lead to the connection piece to deviate from between first anchor clamps piece and the second anchor clamps piece in the test process, lead to unable normal detection, if the elasticity of spring is big, then easily lead to producing the second anchor clamps piece and press hard, inconvenient with the connection piece install the problem between first anchor clamps piece and the second anchor clamps piece.
Disclosure of Invention
In view of the above, the utility model provides a tab and connecting piece tensile force testing tool which has the advantages that the welding area of the tab and the connecting piece is not interfered during clamping, and the connecting piece is convenient to install, so that the problems that the welding strength of the tab cannot be accurately measured and the connecting piece is inconvenient to install in the prior art are solved.
The technical scheme of the utility model is realized as follows: the utility model provides a tension testing tool for a tab and a connecting sheet, which comprises a pressing block, a bottom plate and a clamping mechanism, wherein,
the pressing blocks are arranged on the bottom plate, the two pressing blocks are detachably connected with the bottom plate, and the relative distance between the two pressing blocks is adjustable;
the pressing blocks are used for clamping and fixing the connecting sheet in a matched mode, the lug is welded on the connecting sheet, and the welding part of the lug and the connecting sheet is located between the two pressing blocks;
the clamping mechanism is used for clamping the lug and is connected with the traction mechanism to apply tension to the lug.
On the basis of the technical scheme, the device preferably further comprises a guide block, wherein the guide block is arranged on one surface of the pressing block, which faces the bottom plate; the bottom plate is provided with a guide groove, the guide block is inserted in the guide groove, and the guide block is connected with the guide groove in a sliding way.
On the basis of the technical scheme, preferably, the guide block is of a rectangular structure, the guide groove is of a rectangular groove, and the surface of the guide block facing the connecting sheet is a plane.
On the basis of the technical scheme, the pressing block is preferably further provided with a positioning bolt, and the pressing block is provided with a waist-shaped groove which penetrates through the positioning bolt and is in threaded connection with the bottom plate.
On the basis of the technical scheme, the anti-skid device is preferable, the anti-skid device further comprises a grab handle, the grab handle is arranged at one end, far away from the bottom plate, of the positioning bolt, and an anti-skid groove is formed in the periphery of the grab handle.
On the basis of the above technical solution, it is preferable that the two compacts differ in volume.
On the basis of the above solution, it is preferred that the clamping mechanism comprises a draw-off part, a clamping jaw and a drive member, wherein,
the traction part is used for connecting a traction mechanism; two clamping jaws are arranged on the traction part;
the driving piece is used for driving the two clamping jaws to be closed so as to clamp the lug.
On the basis of the technical scheme, preferably, the driving piece is a bolt, the small-diameter end of the bolt penetrates through one clamping jaw, and the small-diameter end of the bolt is in threaded connection with the other clamping jaw.
On the basis of the technical scheme, the anti-slip teeth are preferably arranged on the surfaces of the two clamping jaws facing each other.
On the basis of the technical scheme, preferably, the traction part is provided with a through hole, and the through hole is used for the traction part to be hung on the traction mechanism.
Compared with the prior art, the tab and connecting piece tensile force testing tool has the following beneficial effects:
(1) The two pressing blocks are matched with the bottom plate for fixing the connecting sheet, and the distance between the two pressing blocks is adjustable, so that when the connecting sheet is clamped and fixed, the two pressing blocks can be adjusted to avoid the welding area of the connecting sheet and the lug, and the welding area of the connecting sheet and the lug is prevented from being clamped, thereby preventing the accuracy of a test result from being influenced; meanwhile, the pressing block is detachably connected with the bottom plate, the pressing block and the bottom plate are matched to clamp the connecting sheet, when the connecting sheet is clamped, the pressing block is fixed on the bottom plate and provides clamping force compared with an elastic piece, the pressing block has the advantage of stable clamping, and the pressing block is of a detachable structure, so that the connecting sheet is convenient to install;
(2) The guide block is arranged on the pressing block, and not only can be matched with the guide groove on the bottom plate to guide the displacement of the pressing block, but also can be used for propping against the connecting sheet to realize the positioning of the connecting sheet, so that the convenience of the installation of the connecting sheet is further improved;
(3) The clamping mechanism comprises a traction part, clamping jaws and a driving piece, wherein a through hole is formed in the traction part, the traction part is convenient for the clamping mechanism to be hung with the traction mechanism for applying tension, so that the clamping mechanism can be used for clamping the lug before the lug is connected with the traction mechanism, and the clamping position of the clamping mechanism to the lug can be conveniently adjusted through the structure.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a perspective view of a tab and tab tensile testing tool of the present utility model;
FIG. 2 is a front view of the tab and tab tensile testing tool of the present utility model;
FIG. 3 is an exploded view of the tab and tab tensile testing tool of the present utility model;
FIG. 4 is a block diagram of a clamping mechanism of the tab and tab tensile testing tool of the present utility model;
FIG. 5 is a diagram of a welding structure of a connecting sheet and a tab;
in the figure: the clamping device comprises a pressing block 1, a waist-shaped groove 101, a bottom plate 2, a guide groove 201, a clamping mechanism 3, a traction part 31, clamping jaws 32, a driving piece 33, anti-slip teeth 301, a through hole 302, a guide block 4, a positioning bolt 5, a grab handle 6, an anti-slip groove 601, a connecting sheet S1 and a lug S2.
Detailed Description
The following description of the embodiments of the present utility model will clearly and fully describe the technical aspects of the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, are intended to fall within the scope of the present utility model.
As shown in fig. 1 to 5, the tab and tab tension test fixture of the present utility model comprises a pressing block 1, a bottom plate 2, a clamping mechanism 3, a guide block 4 and a grab handle 6, and is used for testing the welding strength between a tab S1 and a tab S2 in a battery.
In the battery, a tab S2 on a battery winding core is welded with a connecting piece S1, and is connected with a post of the battery through the connecting piece S1. In order to ensure the connection strength of the tab S2 and the connecting sheet S1, the tab S2 is bent to be L-shaped and then welded with the connecting sheet S1, so that a larger welding area is formed between the tab S2 and the connecting sheet S1, and the connection strength after welding is higher. After welding is finished, a tensile test is required to be carried out on the two to detect whether welding is qualified or not.
In the test tool, at least two pressing blocks 1 are arranged on a bottom plate 2, the two pressing blocks 1 are detachably connected with the bottom plate 2, and the relative distance between the two pressing blocks 1 is adjustable; the pressing block 1 is used for clamping and fixing the connecting sheet S1 by matching with the bottom plate 2. In the above structure, when testing, the bottom plate 2 is connected with the testing platform, and then the pressing block 1 is fixed on the bottom plate 2, and the two are matched to clamp and fix the connecting sheet S1. In the fixing process, the relative distance between the two pressing blocks 1 needs to be adjusted, so that when the connecting piece S1 is clamped by the test fixture, the welding area of the connecting piece S1 and the electrode lug S2 is avoided, the electrode lug S2 is welded on the connecting piece S1, and the welding part of the electrode lug S2 and the connecting piece S1 is positioned between the two pressing blocks 1; therefore, the pressing block 1 and the bottom plate 2 are prevented from being clamped to a welding area, the problem that the connection strength of the connecting piece S1 and the lug S2 is improved due to clamping force is avoided, and the connection strength of the connecting piece S1 and the lug S2 can be accurately measured when the test fixture is used.
The connection piece S1 of battery, the structure is different at both ends usually, and after welding utmost point ear S2, the connection piece S1 area that utmost point ear S2 both sides left is also different, in order to guarantee the centre gripping area of two briquetting 1 pair utmost point ear connection piece S1, in this test fixture, the volume of two briquetting 1 is different. According to the structure, when the connecting sheet S1 is installed, the size of the pressing blocks 1 can be judged, and the position of the two pressing blocks 1 on which end of the connecting sheet S1 should be pressed is resolved, so that the accurate positioning of the connecting sheet S1 is ensured, and the stable clamping of the connecting sheet S1 is realized. Of course, the two compacts 1 may also be provided in different shapes to distinguish between the two compacts 1.
In the test tool, a guide block 4 is arranged, and the guide block 4 is arranged on one surface of a pressing block 1 facing a bottom plate 2; the bottom plate 2 is provided with a guide groove 201, the guide block 4 is inserted into the guide groove 201, and the guide block 4 is connected with the guide groove 201 in a sliding way. With the above structure, the guide block 4 is matched with the guide groove 201 for moving and guiding the pressing block 1, so that the guide block 4 can be prevented from shifting in the moving process, and the pressing block 1 can be fixed after the pressing block 1 is adjusted.
Specifically, the fixing of the pressing block 1 is realized by means of the positioning bolt 5, the pressing block 1 is provided with the waist-shaped groove 101, and the positioning bolt 5 penetrates through the waist-shaped groove 101 and is in threaded connection with the bottom plate 2. According to the structure, when the pressing block 1 needs to be adjusted and the connecting sheet S1 needs to be installed, the positioning bolt 5 needs to be loosened firstly, and then the pressing block 1 and the connecting sheet S1 can be conveniently moved, so that the use is very convenient.
Further, this test fixture is provided with grab handle 6, and grab handle 6 sets up on the one end that locating bolt 5 kept away from bottom plate 2, and the week portion of grab handle 6 is provided with anti-skidding groove 601. In this way, during the test, the operator can hold the handle 6, rotate the positioning bolt 5 through the handle 6, and then adjust the pressing block 1, thereby improving the convenience of operation.
In the device, the positioning bolt 5 can also be replaced by a connecting rod elbow clamping mechanism, so that the pressing block 1 is fixed, and the pressing block 1 is pressed on the bottom plate 2.
Further, the guide block 4 has a rectangular structure, the guide groove 201 is a rectangular groove, and a surface of the guide block 4 facing the connecting piece S1 is a plane. The arrangement of the structure is to enable the connecting sheet S1 to be stably abutted against the plane of the guide block 4, so that the connecting sheet S1 is conveniently positioned, and the convenience of the installation of the connecting sheet S1 is improved. The connecting piece S1 has one end for positioning, and under the condition that the volumes of the two pressing blocks 1 are different, preferably, the small pressing block 1 is used for positioning, and when the connecting piece S1 is positioned and installed, the connecting piece S1 is abutted to the guide block 4 of the small pressing block 1.
In this test fixture, be provided with fixture 3, fixture 3 is used for centre gripping utmost point ear S2 to connect traction mechanism and exert pulling force to utmost point ear S2. After the lug S2 is clamped by the clamping mechanism 3, the clamping mechanism 3 is connected with the traction mechanism, and the tension of the traction mechanism is transmitted to the lug S2 through the clamping mechanism 3, so that tension testing work can be performed. The traction mechanism can adopt a tension tester.
Specifically, the clamping mechanism 3 includes a traction portion 31, a clamping jaw 32, and a driving member 33, wherein the traction portion 31 is used for connecting the traction mechanism; two clamping jaws 32 are arranged on the traction part 31; the driving piece 33 is used for driving the two clamping jaws 32 to be closed so as to clamp the tab S2. With the above structure, when the clamping jaw 32 clamps the tab S2, the tab S2 is placed between the two clamping jaws 32, and then the two clamping jaws 32 are driven to move by the driving member 33, so that the two clamping jaws 32 are gathered to clamp the tab S2, and then the traction portion 31 is connected with the traction mechanism to perform tension measurement.
In the clamping mechanism 3, the driving member 33 is a bolt, a small diameter end of the bolt penetrates one clamping jaw 32, and the small diameter end of the bolt is in threaded connection with the other clamping jaw 32. With the above structure, when the relative distance between the two clamping jaws 32 needs to be adjusted, the relative approaching or the relative separating of the two clamping jaws 32 can be realized by rotating the bolt, and the operation is convenient.
In order to improve the clamping force of the two clamping jaws 32 on the tab S2, the surfaces of the two clamping jaws 32 facing each other are provided with anti-slip teeth 301. In this way, the arrangement of the anti-slip teeth 301 can improve the friction force, so that the two clamping jaws 32 can stably clamp the tab S2.
The clamping mechanism 3 is arranged in a way of separating from the traction mechanism, the clamping mechanism 3 is independently arranged and can be held and moved, so that the clamping position of the clamping mechanism 3 to the lug S2 can be conveniently adjusted, and the clamping mechanism 3 is connected with the traction mechanism after the clamping connection of the clamping mechanism 3 and the lug S2 is completed.
Specifically, the traction portion 31 is provided with a through hole 302, and the through hole 302 is used for the traction portion 31 to be connected with a traction mechanism in a hanging manner. In this way, the traction part 31 can be conveniently connected with the traction mechanism, and the hanging structure is arranged, so that the clamping mechanism 3 can be conveniently separated from the traction mechanism after the test is finished.
The specific implementation steps are as follows:
when tensile test work is performed, firstly, the bottom plate 2 is fixed on a test platform, then the relative distance between the two pressing blocks 1 is adjusted, the welded connecting pieces S1 and the electrode lugs S2 are placed on the bottom plate 2, the two pressing blocks 1 are pressed on the connecting pieces S1, the distance between the two pressing blocks 1 is adjusted according to the welding areas of the connecting pieces S1 and the electrode lugs S2, the welding areas of the connecting pieces S1 and the electrode lugs S2 are required to be located between the two pressing blocks 1, the two pressing blocks 1 are prevented from being pressed on the welding areas of the connecting pieces S1 and the electrode lugs S2, then the grab handle 6 is rotated, the grab handle 6 drives the positioning bolts 5 to rotate, the pressing blocks 1 are fixed on the bottom plate 2, and clamping work of the connecting pieces S1 is completed. After the clamping of the connecting sheet S1 is completed, the lug S2 is required to be clamped through the clamping mechanism 3, the lug S2 is arranged between the two clamping jaws 32, then the two clamping jaws 32 are gathered together through the driving piece 33 to clamp the lug S2, finally the clamping mechanism 3 is connected with a traction mechanism for tension detection such as a tension tester through the through hole 302, and the traction mechanism transmits tension to the lug S2 through the clamping mechanism 3, so that welding strength tension detection of the connecting sheet S1 and the lug S2 can be performed.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (10)
1. A tab and connection piece tensile test frock, its characterized in that: comprises a pressing block (1), a bottom plate (2) and a clamping mechanism (3), wherein,
the pressing blocks (1) are at least two arranged on the bottom plate (2), the two pressing blocks (1) are detachably connected with the bottom plate (2), and the relative distance between the two pressing blocks (1) is adjustable;
the pressing blocks (1) are used for being matched with the bottom plate (2) to clamp and fix the connecting sheet (S1), the lug (S2) is welded on the connecting sheet (S1), and the welding part of the lug (S2) and the connecting sheet (S1) is positioned between the two pressing blocks (1);
the clamping mechanism (3) is used for clamping the tab (S2) and is connected with the traction mechanism to apply tension to the tab (S2).
2. The tab and tab pull test fixture of claim 1, wherein: the device also comprises a guide block (4), wherein the guide block (4) is arranged on one surface of the pressing block (1) facing the bottom plate (2);
the bottom plate (2) is provided with a guide groove (201), the guide block (4) is inserted into the guide groove (201), and the guide block (4) is connected with the guide groove (201) in a sliding mode.
3. The tab and tab pull test fixture of claim 2, wherein: the guide block (4) is of a rectangular structure, the guide groove (201) is of a rectangular groove, and the surface of the guide block (4) facing the connecting sheet (S1) is a plane.
4. The tab and tab pull test fixture of claim 1, wherein: still include positioning bolt (5), waist type groove (101) have been seted up to briquetting (1), positioning bolt (5) pass waist type groove (101) and with bottom plate (2) threaded connection.
5. The tab and tab pull test fixture of claim 4, wherein: still include grab handle (6), grab handle (6) set up positioning bolt (5) keep away from on the one end of bottom plate (2), just the week portion of grab handle (6) is provided with anti-skidding groove (601).
6. The tab and tab pull test fixture of claim 1, wherein: the volumes of the two pressing blocks (1) are different.
7. The tab and tab pull test fixture of claim 1, wherein: the clamping mechanism (3) comprises a traction part (31), clamping jaws (32) and a driving piece (33), wherein,
the traction part (31) is used for connecting a traction mechanism;
the clamping jaw (32) is provided with two clamping jaws on the traction part (31);
the driving piece (33) is used for driving the two clamping jaws (32) to be closed so as to clamp the tab (S2).
8. The tab and tab pull test fixture of claim 7, wherein: the driving piece (33) is a bolt, the small-diameter end of the bolt penetrates through one clamping jaw (32), and the small-diameter end of the bolt is in threaded connection with the other clamping jaw (32).
9. The tab and tab pull test fixture of claim 7, wherein: the surfaces of the two clamping jaws (32) facing each other are provided with anti-slip teeth (301).
10. The tab and tab pull test fixture of claim 7, wherein: the traction part (31) is provided with a through hole (302), and the through hole (302) is used for the traction part (31) to be connected with a traction mechanism in a hanging mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320131090.2U CN219369383U (en) | 2023-01-13 | 2023-01-13 | Lug and connection piece tensile force testing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320131090.2U CN219369383U (en) | 2023-01-13 | 2023-01-13 | Lug and connection piece tensile force testing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219369383U true CN219369383U (en) | 2023-07-18 |
Family
ID=87115080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320131090.2U Active CN219369383U (en) | 2023-01-13 | 2023-01-13 | Lug and connection piece tensile force testing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219369383U (en) |
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2023
- 2023-01-13 CN CN202320131090.2U patent/CN219369383U/en active Active
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