CN220104662U - Tension test fixture for battery - Google Patents
Tension test fixture for battery Download PDFInfo
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- CN220104662U CN220104662U CN202321514887.7U CN202321514887U CN220104662U CN 220104662 U CN220104662 U CN 220104662U CN 202321514887 U CN202321514887 U CN 202321514887U CN 220104662 U CN220104662 U CN 220104662U
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- 238000012360 testing method Methods 0.000 title abstract description 13
- 210000005056 cell body Anatomy 0.000 claims abstract description 46
- 238000009864 tensile test Methods 0.000 claims abstract description 16
- 238000004891 communication Methods 0.000 claims description 5
- 238000005259 measurement Methods 0.000 abstract description 6
- 238000001514 detection method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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 discloses a tensile test fixture for a battery, which comprises a first base, a second base, a guide plate, a first clamping mechanism and a second clamping mechanism, wherein the first base is provided with a first clamping mechanism and a second clamping mechanism; the battery comprises a battery core body and a tab connected to the battery core body; either one of the first base and the second base is used for being connected to a fixed part of a tension machine; the other of the first base and the second base is used for being connected to a lifting part of the tension machine; the guide plate is connected to the first base and is used for propping against the edge of the battery core body in the battery so as to guide the battery core body to be aligned; the first clamping mechanism is connected to the first base and used for clamping the battery cell body. According to the utility model, the electric core body can be guided to be aligned when the electric core body is clamped, so that the electric core body can be prevented from being clamped askew, the even stress of the lug during tension test is ensured, and the tension measurement can be accurately and reliably performed on the lug.
Description
Technical Field
The utility model relates to a tensile testing clamp for a battery.
Background
At present, in a soft package battery, a tab is welded on a battery core body, and in order to check whether the tab is firmly welded, whether the tab is subjected to cold welding or not and the like, a tensile force machine is required to be used for carrying out tensile force test on the tab. For example, chinese patent publication No. CN214503165U discloses a multi-functional pulling machine with double columns, which includes an upper clamp and a lower clamp, so that the upper clamp clamps the tab, and the lower clamp clamps the battery cell body, so that the tab on the battery cell body can be tested in tension, so as to detect the tensile strength and firmness of the welded tab. However, the lower clamp cannot guide the electric core body to be righted when clamping the electric core body, the electric core body is clamped on the lower clamp, a certain degree of inclination occurs at a great risk, the electric core body is clamped to be inclined, tension testing is conducted on the tab under the condition that the electric core body is clamped to be inclined, the tab is uneven in stress, the tab is peeled off from one corner of a welding and printing area, the measured tension value is much smaller than the actual value, and tension measurement cannot be conducted accurately and reliably.
In addition, chinese patent publication No. CN209043705U discloses a novel interlocking universal tensile machine wedge-shaped clamp, which cannot lead the core body to be aligned when clamping the battery core, and further can lead the core body to have a great risk of being clamped askew.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides a tension test fixture for a battery, which can guide the cell body to be aligned when clamping the cell body, further can prevent the cell body from being clamped askew, further can ensure that the lugs are uniformly stressed when in tension test, and can accurately and reliably carry out tension measurement on the lugs.
In order to solve the technical problems, the technical scheme of the utility model is as follows: a tensile test fixture for a battery comprises a first base, a second base, a guide plate, a first clamping mechanism and a second clamping mechanism; wherein,
the battery comprises a battery core body and a tab connected to the battery core body;
either one of the first base and the second base is used for being connected to a fixed part of a tension machine;
the other of the first base and the second base is used for being connected to a lifting part of the tension machine;
the guide plate is connected to the first base and is used for propping against the edge of the battery core body in the battery so as to guide the battery core body to be aligned;
the first clamping mechanism is connected to the first base and used for clamping the battery cell body which is abutted against the guide plate;
the second clamping mechanism is connected to the second base and is used for clamping the tab in the battery.
Further, when the first base is installed on the tension machine, the guide plate is horizontally arranged.
The first clamping mechanism comprises two first clamping blocks and first driving screws which are in one-to-one correspondence with the first clamping blocks; wherein,
the two first clamping blocks are respectively connected to the first base in a sliding manner, and the battery cell body is arranged between the two first clamping blocks;
the first driving screw is connected with the corresponding first clamping block and is in threaded connection with the first base, and the first driving screw is used for driving the first clamping block to move towards the battery cell body when rotating so as to clamp the battery cell body;
the second clamping mechanism comprises two second clamping blocks and second driving screws which are in one-to-one correspondence with the second clamping blocks; wherein,
the two second clamping blocks are respectively connected to the second base in a sliding manner, and the lug in the battery is arranged between the two second clamping blocks;
the second driving screw is connected with the corresponding second clamping block and is in threaded connection with the second base, and the second driving screw is used for driving the second clamping block to move towards the tab to clamp the tab when rotating.
Further, a first handle is connected to the first driving screw, and a second handle is connected to the second driving screw.
Further provided is a specific structure of the first clamping block and the second clamping block, wherein the first clamping block comprises a first pressing plate part and a first sliding rod part;
the first base is provided with first sliding holes corresponding to the first sliding rod parts one by one, and the first sliding rod parts are in sliding fit in the corresponding first sliding holes;
a first connecting shaft part is connected to one end part of the first driving screw rod, a first step part is connected to the first connecting shaft part, and the diameter of the first step part is larger than that of the first connecting shaft part;
the first sliding rod part is provided with a first matching groove matched with the first step part and a first communication groove matched with the first connecting shaft part;
the first step part is matched in the first matching groove, the first connecting shaft part is matched in the first connecting groove, and the first driving screw rod is connected with the first sliding rod part;
the second clamping block comprises a second pressing plate part and a second sliding rod part;
the second base is provided with second sliding holes corresponding to the second sliding rod parts one by one, and the second sliding rod parts are in sliding fit in the corresponding second sliding holes;
a second connecting shaft part is connected to one end part of the second driving screw rod, a second step part is connected to the second connecting shaft part, and the diameter of the second step part is larger than that of the second connecting shaft part;
a second matching groove matched with the second step part and a second communication groove matched with the second connecting shaft part are arranged in the second sliding rod part;
the second step portion is fitted in the second fitting groove and the second connecting shaft portion is fitted in the second communicating groove, so that the second drive screw and the second slide bar portion are connected.
Further, anti-slip teeth are respectively arranged on one end part of the first pressing plate part facing the battery cell body and one end part of the second pressing plate part facing the tab.
Further, a positioning member for abutting against the tab to position the tab is connected to the second pressing plate portion.
Further, the positioning member is connected to the second pressing plate portion through a connecting mechanism, and the connecting mechanism comprises a sliding sheet portion, a bolt portion and a lock nut;
the second pressing plate part is provided with a mounting groove, the mounting groove comprises a first groove part matched with the sliding sheet part and a second groove part matched with the bolt part, and the width of the first groove part is larger than that of the second groove part;
the sliding sheet part is in sliding fit in the first groove part, the bolt part is connected to the sliding sheet part, and the bolt part sequentially passes through the second groove part and the positioning member and then is connected with the locking nut;
the lock nut is threadedly coupled to the bolt portion and is configured to abut against the positioning member to lock the positioning member to the second platen portion.
Further, the first base is used for being connected to a fixed part of the tension machine;
the second base is used for being connected to the lifting part of the tension machine and is positioned above the first base;
the guide plate is used for propping against the bottom edge part of the battery cell body to guide the battery cell body to be aligned.
Further, the first base is connected with the fixed part of the tension machine through a first connecting rod, the lower end part of the first connecting rod is used for being connected to the fixed part of the tension machine, and the first base is connected to the upper end part of the first connecting rod;
the second base is connected with the lifting part of the tension machine through a second connecting rod, the upper end part of the second connecting rod is used for being connected to the lifting part of the tension machine, and the second base is connected to the lower end part of the second connecting rod.
After the technical scheme is adopted, one of the first base and the second base is connected to the fixed part of the tension machine, the other is connected to the lifting part of the tension machine, and then the battery core body is placed in place, the first clamping mechanism clamps the battery core body, and the second clamping mechanism clamps the electrode lugs. Then the lifting part of the tension machine can enable the first base and the second base to be mutually far away in the lifting process, and then the first clamping mechanism and the second clamping mechanism can be driven to be mutually far away so as to carry out tension test on the connection strength between the electrode lugs and the battery cell body. When the battery cell body is installed, one edge of the battery cell body is propped against the guide plate, so that the battery cell body can be guided to be righted, the battery cell body is prevented from being inclined due to the fact that the battery cell body is clamped, the even stress of the lug during tension test can be guaranteed, the tension measurement can be accurately and reliably carried out on the lug, deviation caused by the inclination of the battery cell body is eliminated, and the reproducibility of detection is improved.
Drawings
Fig. 1 is a schematic view showing a structure in which a tensile testing jig for a battery of the present utility model is mounted on a tensile machine;
fig. 2 is a schematic structural view of a tensile testing jig for a battery according to the present utility model;
FIG. 3 is a schematic view of the first base and the first clamping mechanism of the present utility model;
fig. 4 is a schematic structural view of the second base and the second clamping mechanism of the present utility model.
Detailed Description
In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
As shown in fig. 1 to 4, a tensile testing jig for a battery includes a first base 1, a second base 2, a guide plate 3, a first clamping mechanism 100, and a second clamping mechanism 200; wherein,
the battery comprises a battery core body 4 and a tab 5 connected to the battery core body 4;
either one of the first base 1 and the second base 2 is used for being connected to a fixed part 300 of a tensile machine;
the other of the first base 1 and the second base 2 is used for being connected to a lifting part 400 of a pulling machine;
the guide plate 3 is connected to the first base 1, and the guide plate 3 is used for propping against the edge of the battery cell body 4 in the battery so as to guide the battery cell body 4 to be aligned;
the first clamping mechanism 100 is connected to the first base 1 and is used for clamping the battery cell body 4 abutted against the guide plate 3;
the second clamping mechanism 200 is connected to the second base 2 and is used for clamping the tab 5 in the battery; specifically, one of the first base 1 and the second base 2 is connected to the fixing portion 300 of the tensile machine and the other is connected to the lifting portion 400 of the tensile machine, and then the battery cell body 4 is put in place and the first clamping mechanism 100 is made to clamp the battery cell body 4, and the second clamping mechanism 200 is made to clamp the tab 5. Then, the lifting part 400 of the tension machine can make the first base 1 and the second base 2 far away from each other in the lifting process, so that the first clamping mechanism 100 and the second clamping mechanism 200 can be driven to be far away from each other, so as to perform tension test on the connection strength between the tab 5 and the cell body 4. Further specifically, when the electric core body 4 is installed, one edge of the electric core body 4 is propped against the guide plate 3, so that the electric core body 4 can be guided to be righted, the electric core body 4 is prevented from being inclined due to clamping, the stress of the lug 5 is even during tension test, the tension measurement can be accurately and reliably carried out on the lug 5, deviation caused by the inclination of the electric core body 4 is eliminated, and the reproducibility of detection is improved.
In this embodiment, the fixing portion 300 may be a fixing base of a tensile machine, and the lifting portion 400 may include a lifting beam in the tensile machine and a force sensor connected to the lifting beam; the guide plate 3 may be integrally formed with the first base 1, may be welded to the first base 1, or may be fastened to the first base 1 by a fastener.
As shown in fig. 1 to 3, the guide plate 3 is horizontally arranged when the first base 1 is mounted on the tension machine; specifically, the first base 1 is mounted on the tensile machine, which means that the first base 1 is connected to the fixed part 300 of the tensile machine or to the lifting part 400 of the tensile machine.
As shown in fig. 1 to 4, the first clamping mechanism 100 is, for example and without limitation, of a structure including two first clamping blocks 6 and first driving screws 7 in one-to-one correspondence with the first clamping blocks 6; wherein,
the two first clamping blocks 6 are respectively connected to the first base 1 in a sliding manner, and the battery cell body 4 is arranged between the two first clamping blocks 6;
the first driving screw 7 is connected with the corresponding first clamping block 6 and is in threaded connection with the first base 1, and the first driving screw 7 is used for driving the first clamping block 6 to move towards the battery cell body 4 so as to clamp the battery cell body 4 when rotating;
the second clamping mechanism 200 includes, for example, but not limited to, two second clamping blocks 8 and second driving screws 9 corresponding to the second clamping blocks 8 one by one; wherein,
the two second clamping blocks 8 are respectively connected to the second base 2 in a sliding manner, and the lugs 5 in the battery are arranged between the two second clamping blocks 8;
the second driving screw 9 is connected with the corresponding second clamping block 8 and is in threaded connection with the second base 2, and the second driving screw 9 is used for driving the second clamping block 8 to move towards the tab 5 so as to clamp the tab 5 when rotating; specifically, the two first clamping blocks 6 can slide to freely adjust the position of the battery core body 4 when being clamped, and the two second clamping blocks 8 can slide to freely adjust the position of the tab 5 when being clamped. Further specifically, the battery core body 4 is placed between the two first clamping blocks 6, the tab 5 is placed between the two second clamping blocks 8, the edge of the battery core body 4 is abutted against the guide plate 3, then the first driving screw 7 is rotated to drive the first clamping blocks 6 to move towards the battery core body 4 so as to clamp the battery core body 4, and then the second driving screw 9 is rotated to drive the second clamping blocks 8 to move towards the tab 5 so as to clamp the tab 5.
As shown in fig. 1 to 4, the first driving screw 7 is connected with a first handle 10, so that the first handle 10 is rotated to drive the first driving screw 7 to rotate, and further drive the first clamping block 6 to move towards or away from the battery cell body 4, so as to clamp or unclamp the battery cell body 4;
the second driving screw 9 is connected with a second handle 11, so that the second handle 11 is rotated to drive the second driving screw 9 to rotate, and then drive the second clamping block 8 to move towards or away from the tab 5, and further clamp or unclamp the tab 5.
As shown in fig. 1 to 4, the first clamping block 6 may include a first pressing plate portion 12 and a first sliding rod portion 13;
the first base 1 is provided with first sliding holes 14 corresponding to the first sliding rod parts 13 one by one, and the first sliding rod parts 13 are in sliding fit in the corresponding first sliding holes 14 so that the whole first clamping block 6 is in sliding connection with the first base 1;
a first connecting shaft portion 15 is connected to one end portion of the first driving screw 7, a first step portion 16 is connected to the first connecting shaft portion 15, and a diameter of the first step portion 16 is larger than a diameter of the first connecting shaft portion 15;
the first sliding rod part 13 is provided with a first matching groove 17 matched with the first step part 16 and a first communicating groove 18 matched with the first connecting shaft part 15;
the first step part 16 is fitted in the first fitting groove 17 and the first connecting shaft part 15 is fitted in the first communicating groove 18, so that the first driving screw 7 and the first sliding rod part 13 are connected, and when the first driving screw 7 rotates, the first sliding rod part 13 can be driven to slide, so that the first pressing plate part 12 is driven to move towards the cell body 4 to clamp the cell body 4;
the second clamp block 8 may comprise a second press plate portion 19 and a second slide bar portion 20;
the second base 2 is provided with second sliding holes corresponding to the second sliding rod parts 20 one by one, and the second sliding rod parts 20 are in sliding fit in the corresponding second sliding holes so that the whole second clamping block 8 is in sliding connection with the second base 2;
a second shaft connecting part 21 is connected to one end part of the second driving screw 9, a second step part 22 is connected to the second shaft connecting part 21, and the diameter of the second step part 22 is larger than that of the second shaft connecting part 21;
the second sliding rod portion 20 is provided with a second matching groove 23 matched with the second step portion 22 and a second communication groove 24 matched with the second connecting shaft portion 21;
the second step portion 22 is fitted in the second fitting groove 23 and the second connecting shaft portion 21 is fitted in the second communicating groove 24, so that the second driving screw 9 and the second slide bar portion 20 are connected, so that the second driving screw 9 can drive the second slide bar portion 20 to slide when rotating, and the second pressing plate portion 19 is driven to move toward the tab 5 to clamp the tab 5.
As shown in fig. 1 to 4, the first pressing plate 12 has anti-slip teeth on its end facing the battery cell body 4 and the second pressing plate 19 has anti-slip teeth on its end facing the tab 5.
As shown in fig. 1, 2 and 4, the second pressing plate 19 is connected with a positioning member 25 for abutting against the tab 5 to position the tab 5, and after the positioning member 25 is disposed, the position of the tab 5 in each battery after being clamped can be kept substantially consistent, so as to ensure the accuracy of the tension detection result.
As shown in fig. 4, the positioning member 25 may be connected to the second pressing plate portion 19 by a connection mechanism, which may include a slide piece portion 26, a bolt portion 27, and a lock nut 29;
the second pressing plate 19 is provided with a mounting groove, the mounting groove comprises a first groove part 30 matched with the sliding sheet part 26 and a second groove part 31 matched with the bolt part 27, and the width of the first groove part 30 is larger than that of the second groove part 31;
the sliding sheet part 26 is slidably matched in the first groove part 30, the bolt part 27 is connected to the sliding sheet part 26, and the bolt part 27 sequentially passes through the second groove part 31 and the positioning member 25 and then is connected with the locking nut 29;
the lock nut 29 is screwed on the bolt portion 27 and is used for abutting against the positioning member 25 to lock the positioning member 25 on the second pressing plate portion 19; specifically, when the size and shape of the tab 5 in the battery are different, the lock nut 29 may be loosened and the position of the positioning member 25 may be adjusted to accommodate the size and shape of the tab 5.
In this embodiment, the first base 1 is used to connect to the fixed part 300 of the tensile machine;
the second base 2 is used for being connected to the lifting part 400 of the tension machine and is positioned above the first base 1;
the guide plate 3 is used for propping against the bottom edge part of the battery cell body 4 to guide the battery cell body 4 to be aligned.
Specifically, the first base 1 is connected to the fixed portion 300 of the tensile machine through a first connecting rod 32, the lower end portion of the first connecting rod 32 is used for being connected to the fixed portion 300 of the tensile machine, and the first base 1 is connected to the upper end portion of the first connecting rod 32;
the second base 2 is connected with the lifting part 400 of the tensile machine through a second connecting rod 33, the upper end part of the second connecting rod 33 is used for being connected with the lifting part 400 of the tensile machine, and the second base 2 is connected with the lower end part of the second connecting rod 33; in this embodiment, the second connecting rod 33 is used to connect to the force sensor in the lifting portion 400, and both the first connecting rod 32 and the second connecting rod 33 may be threaded rods.
In summary, one of the first base 1 and the second base 2 is connected to the fixing portion 300 of the tensile machine and the other is connected to the lifting portion 400 of the tensile machine, and then the battery cell body 4 is put in place and the first clamping mechanism 100 clamps the battery cell body 4, and the second clamping mechanism 200 clamps the tab 5. Then, the lifting part 400 of the tension machine can make the first base 1 and the second base 2 far away from each other in the lifting process, so that the first clamping mechanism 100 and the second clamping mechanism 200 can be driven to be far away from each other, so as to perform tension test on the connection strength between the tab 5 and the cell body 4. When the battery core body 4 is installed, one edge of the battery core body 4 is propped against the guide plate 3, so that the battery core body 4 can be guided to be righted, the battery core body 4 is prevented from being inclined due to the fact that the battery core body is clamped, the even stress of the tab 5 during tension test can be guaranteed, tension measurement can be accurately and reliably carried out on the tab 5, deviation caused by the inclination of the battery core body 4 is eliminated, and the reproducibility of detection is improved.
The technical problems, technical solutions and advantageous effects solved by the present utility model have been further described in detail in the above-described embodiments, and it should be understood that the above-described embodiments are only illustrative of the present utility model and are not intended to limit the present utility model, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present utility model should be included in the scope of protection of the present utility model.
Claims (10)
1. A tensile test fixture for a battery, which is characterized by comprising a first base (1), a second base (2), a guide plate (3), a first clamping mechanism (100) and a second clamping mechanism (200); wherein,
the battery comprises a battery core body (4) and a tab (5) connected to the battery core body (4);
either one of the first base (1) and the second base (2) is used for being connected to a fixed part (300) of a tension machine;
the other of the first base (1) and the second base (2) is used for being connected to a lifting part (400) of the tension machine;
the guide plate (3) is connected to the first base (1), and the guide plate (3) is used for propping against the edge of the battery core body (4) in the battery so as to guide the battery core body (4) to be aligned;
the first clamping mechanism (100) is connected to the first base (1) and is used for clamping the battery cell body (4) abutted against the guide plate (3);
the second clamping mechanism (200) is connected to the second base (2) and is used for clamping the tab (5) in the battery.
2. The tensile testing fixture for a battery according to claim 1, wherein the guide plate (3) is horizontally arranged when the first base (1) is mounted on the tensile machine.
3. The tensile testing fixture for a battery according to claim 1, wherein,
the first clamping mechanism (100) comprises two first clamping blocks (6) and first driving screws (7) which are in one-to-one correspondence with the first clamping blocks (6); wherein,
the two first clamping blocks (6) are respectively connected to the first base (1) in a sliding manner, and the battery cell body (4) is arranged between the two first clamping blocks (6);
the first driving screw (7) is connected with the corresponding first clamping block (6) and is in threaded connection with the first base (1), and the first driving screw (7) is used for driving the first clamping block (6) to move towards the battery cell body (4) so as to clamp the battery cell body (4) when rotating;
the second clamping mechanism (200) comprises two second clamping blocks (8) and second driving screws (9) which are in one-to-one correspondence with the second clamping blocks (8); wherein,
the two second clamping blocks (8) are respectively connected to the second base (2) in a sliding manner, and the lugs (5) in the battery are arranged between the two second clamping blocks (8);
the second driving screw (9) is connected with the corresponding second clamping block (8) and is in threaded connection with the second base (2), and the second driving screw (9) is used for driving the second clamping block (8) to move towards the tab (5) to clamp the tab (5) when rotating.
4. A tensile testing fixture for a battery according to claim 3, wherein,
the first driving screw (7) is connected with a first handle (10);
the second driving screw (9) is connected with a second handle (11).
5. A tensile testing fixture for a battery according to claim 3, wherein,
the first clamping block (6) comprises a first pressing plate part (12) and a first sliding rod part (13);
the first base (1) is provided with first sliding holes (14) which are in one-to-one correspondence with the first sliding rod parts (13), and the first sliding rod parts (13) are in sliding fit in the corresponding first sliding holes (14);
a first connecting shaft part (15) is connected to one end part of the first driving screw (7), a first step part (16) is connected to the first connecting shaft part (15), and the diameter of the first step part (16) is larger than that of the first connecting shaft part (15);
a first matching groove (17) matched with the first step part (16) and a first communication groove (18) matched with the first connecting shaft part (15) are arranged in the first sliding rod part (13);
the first step part (16) is fitted in the first fitting groove (17) and the first connecting shaft part (15) is fitted in the first communicating groove (18), thereby connecting the first drive screw (7) and the first slide bar part (13);
the second clamping block (8) comprises a second pressing plate part (19) and a second sliding rod part (20);
the second base (2) is provided with second sliding holes corresponding to the second sliding rod parts (20) one by one, and the second sliding rod parts (20) are in sliding fit in the corresponding second sliding holes;
a second connecting shaft part (21) is connected to one end part of the second driving screw (9), a second step part (22) is connected to the second connecting shaft part (21), and the diameter of the second step part (22) is larger than that of the second connecting shaft part (21);
a second matching groove (23) matched with the second step part (22) and a second communication groove (24) matched with the second connecting shaft part (21) are arranged in the second sliding rod part (20);
the second step portion (22) is fitted in the second fitting groove (23) and the second connecting shaft portion (21) is fitted in the second communicating groove (24), thereby connecting the second drive screw (9) and the second slide bar portion (20).
6. The tensile testing fixture for a battery according to claim 5, wherein,
anti-slip teeth are respectively arranged on one end part of the first pressing plate part (12) facing the battery cell body (4) and one end part of the second pressing plate part (19) facing the tab (5).
7. The tensile testing fixture for a battery according to claim 5, wherein a positioning member (25) for abutting against the tab (5) to position the tab (5) is connected to the second pressing plate portion (19).
8. The tensile testing fixture for a battery according to claim 7, wherein,
the positioning member (25) is connected to the second pressing plate part (19) through a connecting mechanism, and the connecting mechanism comprises a sliding sheet part (26), a bolt part (27) and a locking nut (29);
the second pressing plate part (19) is provided with a mounting groove, the mounting groove comprises a first groove part (30) matched with the sliding sheet part (26) and a second groove part (31) matched with the bolt part (27), and the width of the first groove part (30) is larger than that of the second groove part (31);
the sliding sheet part (26) is in sliding fit in the first groove part (30), the bolt part (27) is connected to the sliding sheet part (26), and the bolt part (27) sequentially passes through the second groove part (31) and the positioning member (25) and then is connected with the locking nut (29);
the lock nut (29) is screwed on the bolt portion (27) and is used for abutting against the positioning member (25) to lock the positioning member (25) on the second pressing plate portion (19).
9. The tensile testing fixture for a battery according to claim 1, wherein,
the first base (1) is used for being connected to a fixed part (300) of the tension machine;
the second base (2) is used for being connected to the lifting part (400) of the tension machine and is positioned above the first base (1);
the guide plate (3) is used for propping against the bottom edge part of the battery cell body (4) to guide the battery cell body (4) to be aligned.
10. The tensile testing fixture for a battery according to claim 9, wherein,
the first base (1) is connected with a fixed part (300) of the tension machine through a first connecting rod (32), the lower end part of the first connecting rod (32) is used for being connected to the fixed part (300) of the tension machine, and the first base (1) is connected to the upper end part of the first connecting rod (32);
the second base (2) is connected with the lifting part (400) of the tension machine through a second connecting rod (33), the upper end part of the second connecting rod (33) is used for being connected to the lifting part (400) of the tension machine, and the second base (2) is connected to the lower end part of the second connecting rod (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321514887.7U CN220104662U (en) | 2023-06-14 | 2023-06-14 | Tension test fixture for battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321514887.7U CN220104662U (en) | 2023-06-14 | 2023-06-14 | Tension test fixture for battery |
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| Publication Number | Publication Date |
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| CN220104662U true CN220104662U (en) | 2023-11-28 |
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| CN202321514887.7U Active CN220104662U (en) | 2023-06-14 | 2023-06-14 | Tension test fixture for battery |
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2023
- 2023-06-14 CN CN202321514887.7U patent/CN220104662U/en active Active
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