CN113125050B - Torsion testing device - Google Patents
Torsion testing device Download PDFInfo
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- CN113125050B CN113125050B CN202110401696.9A CN202110401696A CN113125050B CN 113125050 B CN113125050 B CN 113125050B CN 202110401696 A CN202110401696 A CN 202110401696A CN 113125050 B CN113125050 B CN 113125050B
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- 238000012360 testing method Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 description 3
- 238000009864 tensile test Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
Abstract
The invention provides a torsion testing device, comprising: a base; a bracket disposed on the base; an upper seat arranged on the bracket; the fixing unit is detachably fixed on the upper seat, and is configured on a cover plate for fixing the power battery; the actuating unit is arranged on the base, an actuating part is detachably arranged at the end part of the actuating unit, and the actuating unit controls the reciprocating motion of the actuating part; the fixing unit comprises a third fixing unit, the third fixing unit comprises a first wall part and a second wall part, clamping grooves are formed in the first wall part and the second wall part, and two sides of the cover plate in the width direction are clamped into the clamping grooves; the actuating part is provided with a clamping unit which clamps the pole of the cover plate.
Description
Technical Field
The invention relates to a torsion testing device.
Background
As shown in fig. 1, a power battery in the prior art includes a cover plate 10 and a pole 20 disposed on the cover plate 10. In the prior art, a torsion test needs to be performed on the pole 20, specifically, as shown in fig. 1, tensile forces in X, Y and Z directions need to be tested.
There are several testing methods in the prior art for the torsion test described above. For example, a metal block (e.g., an aluminum or copper block) is welded to the post (either on the side or the forward surface of the post) to aid in the pull test. This approach has the following disadvantages: due to the continuous and uninterrupted dynamic test 16000, the test method has low efficiency and is easy to break the metal block during the test, thereby causing the test to be interrupted. For another example, the tensile force is directly tested at the pole or on the cover plate (the back of the pole) by a jacking method, but the tensile force in the Z-axis direction cannot be measured by the method, and the tensile force test in the Z-axis direction of the pole is always a difficult point in the industry.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a torsion testing device with a reasonable structural design.
The technical scheme adopted by the embodiment of the invention for solving the problems is as follows: a torsion testing apparatus, comprising:
a base;
a bracket disposed on the base;
an upper seat disposed on the bracket;
the fixing unit is detachably fixed on the upper seat, and is configured on a cover plate for fixing the power battery; and
the actuating unit is arranged on the base, an actuating part is detachably arranged at the end part of the actuating unit, and the actuating unit controls the reciprocating motion of the actuating part;
the fixing unit comprises a third fixing unit, the third fixing unit comprises a first wall part and a second wall part, clamping grooves are formed in the first wall part and the second wall part, and two sides of the cover plate in the width direction are clamped into the clamping grooves;
the actuating part is provided with a clamping unit which clamps the pole of the cover plate.
In an embodiment of the present invention, the third fixing unit further includes a locking unit, and the locking unit is disposed on the first wall portion and the second wall portion and configured to clamp the first wall portion and the second wall portion to lock the cover plate.
In an embodiment of the present invention, the clamping unit includes a third wall portion, a fourth wall portion, and a fastening unit, the pole of the cover plate is clamped between the third wall portion and the fourth wall portion, and the fastening unit is configured to clamp the third wall portion and the fourth wall portion to lock the pole.
The embodiment of the invention also comprises a pressure sensor which is arranged on the upper seat.
The embodiment of the invention also comprises a lifting unit, wherein the lifting unit is fixed on the bracket and is connected with the upper seat.
The upper seat comprises a first part, a first sliding block and a first locking unit, wherein the first part and the first sliding block are in slidable connection through a first sliding unit, and the first locking unit is used for fixing the first part and the first sliding block relatively.
In an embodiment of the present invention, the first sliding unit includes a first sliding groove and a first sliding rail engaged with the first sliding groove, wherein the first sliding groove is disposed on the first member, and the first sliding rail is disposed on the first sliding block.
The upper seat further comprises a second sliding block and a second locking unit, the first sliding block and the second sliding block are slidably connected through a second sliding unit, and the second locking unit is configured to relatively fix the first sliding block and the second sliding block.
In the embodiment of the present invention, the second sliding unit includes a second sliding slot and a second sliding rail matched with the second sliding slot, the second sliding slot is disposed on the second sliding block, and the second sliding rail is disposed on the first sliding block.
In the embodiment of the present invention, the first slider is slidably adjusted in a first direction with respect to the first member, the second slider is slidably adjusted in a second direction with respect to the first slider, and the second direction is perpendicular to the first direction.
Compared with the prior art, the invention has one or more of the following advantages or effects: the structure is simple, and the design is reasonable; the fixing units are detachably fixed to the upper seat, so that the fixing units can be selected according to actual conditions, for example, when the tensile forces of X, Y and Z axes are measured respectively, the corresponding fixing units can be replaced correspondingly, so that the fixing units can fix the cover plate in different states for testing; the actuating part is detachably fixed to the actuating unit, so that the actuating part of the adaptive pole can be selected according to the impact action; the first fixing unit, the second fixing unit and the third fixing unit are arranged, so that tensile force tests of the pole in X, Y and Z axis directions can be respectively completed, the structure is simple, and the reliability is better; due to the arrangement of the third fixing unit, the difficult problem of Z-direction tension test of the pole is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic perspective view of a cover plate and a terminal in an embodiment of the invention.
Fig. 2 is a schematic perspective view illustrating a torque testing apparatus without a fixing unit and an actuating portion according to an embodiment of the present invention.
Fig. 3 is a schematic perspective view of a torque testing apparatus without a fixing unit and an actuating portion according to an embodiment of the present invention.
Fig. 4 is a first schematic perspective view illustrating a torque testing device according to an embodiment of the present invention, the first fixing unit being disposed in the torque testing device.
Fig. 5 is a schematic perspective view illustrating a second perspective structure of the torsion testing apparatus according to the embodiment of the invention, when the first fixing unit is disposed.
Fig. 6 is an enlarged view at a in fig. 5.
Fig. 7 is a schematic perspective view illustrating a torsion testing apparatus according to an embodiment of the invention, the torsion testing apparatus being provided with a second fixing unit.
Fig. 8 is an enlarged view at B in fig. 7.
Fig. 9 is a schematic perspective view illustrating a third fixing unit of the torsion testing apparatus according to the embodiment of the invention.
Fig. 10 is an enlarged view at C in fig. 9.
Fig. 11 is a schematic front view illustrating a third fixing unit of the torsion testing apparatus according to the embodiment of the invention.
Fig. 12 is an enlarged view at D in fig. 11.
Fig. 13 is an exploded view of the upper seat.
Detailed Description
The present invention will be described in further detail below by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not to be construed as limiting the present invention.
Example 1.
Referring to fig. 1 to 12, the torsion testing apparatus of the present embodiment includes a base 1, a bracket 2, an upper seat 3, a fixing unit 4, and an actuating unit 5.
The base 1 in this embodiment provides a mounting platform.
The bracket 2 in this embodiment is disposed on the base 1. In one embodiment, the bracket 2 is fixed to the base 1. For example, the bracket 2 may be fixed to the base 1 by bolts, or the bracket 2 may be directly welded to the base 1.
The upper seat 3 in this embodiment is disposed on the bracket 2.
The fixing unit 4 in this embodiment is detachably fixed to the upper seat 3, and the fixing unit 4 is disposed on a cover plate for fixing the power battery. The fixing unit 4 is detachably fixed to the upper seat 3, and thus, can be selected according to actual conditions. For example, when measuring the tensile forces of the X, Y, Z axes, the corresponding fixing units 4 can be replaced correspondingly, so that the fixing units 4 can fix the cover plate in different states for testing.
In this embodiment, the upper seat 3 is provided with a plurality of mounting holes, and the fixing unit 4 can be matched with the mounting holes through bolts, so as to realize detachable connection. In other embodiments, other structures in the prior art may be used to achieve the detachable connection, such as clamping, buckling, etc.
The actuating unit 5 in this embodiment is disposed on the base 1, an end portion of the actuating unit 5 is detachably provided with an actuating portion 51, and the actuating unit 5 controls the reciprocating movement (reciprocating movement in the up-down direction) of the actuating portion 51. The actuating unit 5 reciprocates to repeatedly hit the pole 20 of the cover plate 10, thereby rapidly completing the test. The actuating unit 5 in one embodiment may be mainly configured by a servo motor to complete the reciprocating motion of the actuating portion 51. In one embodiment, the actuating unit 5 may be a cylinder or an oil cylinder as a main body to complete the reciprocating motion of the actuating portion 51. The above-mentioned technology of implementing the reciprocating motion of the actuating portion 51 by using a servo motor, a cylinder or an oil cylinder as a main body is the prior art, and is not described herein again. The actuating portion 51 in this embodiment is detachably fixed to the actuating unit 5, and therefore, the actuating portion 51 of the fitting post 20 can be selected according to the striking motion. The actuating unit 5 in this embodiment includes an end portion having a mounting hole, and the actuating portion 51 is detachably engaged with the mounting hole by a bolt.
The fixing unit 4 of this embodiment includes a first fixing unit 401, the first fixing unit 401 includes a first member 41 and a second member 42, the first member 41 is fixed to the upper seat 3 and is provided with a cavity 411 for accommodating the cover plate, the second member 42 is fixed to the first member 41 and at least partially covers the cavity 411, so that the first member 41 and the second member 42 clamp the cover plate 10 and the pole 20 of the cover plate 10 is exposed to the outside. The recess 411 in this embodiment is shaped to fit the contour of the cover plate 10. The second member 42 may be detachably connected to the first member 41 with a fastener.
In the embodiment, the cover plate 20 is extended along the axial direction of the actuating unit 5, the actuating portion 51 is provided with a hole 511, the shape of the hole 511 is matched with the pole 20 of the cover plate 10, and the pole 20 of the cover plate 10 is disposed in the hole 511 during testing. When the actuating portion 51 moves, the hole wall impacts the pole 20 in the X-axis direction of the pole 20, so as to complete the tensile test in the X-axis direction.
The fixing unit 4 of the present embodiment includes a second fixing unit 402, the second fixing unit 402 includes a third member 43 and a fourth member 44, the third member 43 is disposed on the upper seat 3 and has a groove portion 431, the cover plate 10 is disposed transversely, one side of the width direction is disposed on the groove portion 431, the fourth member 44 is fixed on the third member 43 and presses the other side of the cover plate 10 opposite to the groove portion 431 in the width direction, so as to fix the cover plate on the fixing unit 4.
The actuating portion 51 of the present embodiment includes a pushing portion 512 aligned with the terminal 20 of the cover plate 10. The pushing portion 512 impacts the sidewall of the Y-axis direction of the pole 20 to complete the tensile test of the Y-axis direction of the pole.
In this embodiment, the fixing unit 4 includes a third fixing unit 403, the third fixing unit 403 includes a first wall 4031 and a second wall 4032, a card slot 4033 is disposed on the first wall 4031 and the second wall 4032, and two sides of the cover plate 10 in the width direction are clipped in the card slot 4033. Specifically, first wall 4031 and second wall 4032 are each provided with a slot and are positioned opposite each other to form the illustrated card slot 4033.
In this embodiment, the third fixing unit 403 further includes a locking unit 4033, and the locking unit 4033 is disposed on the first wall 4031 and the second wall 4032 and configured to clamp the first wall 4031 and the second wall 4032 to lock the cover plate 10. Specifically, the locking unit 4033 may include a bolt and a nut, which are engaged to clamp the first wall 4031 and the second wall 4032, so that the first wall 4031 and the second wall 4032 clamp the cover plate 10 to prevent the cover plate from loosening and affecting the test.
The actuating portion 51 of the present embodiment has a clamping unit 513, and the clamping unit 513 clamps the pole 20 of the cover plate 10.
In this embodiment, the clamping unit 513 includes a third wall portion 5131, a fourth wall portion 5132 and a fastening unit 5133, the terminal post 20 of the cover plate 10 is clamped between the third wall portion 5131 and the fourth wall portion 5132, and the fastening unit 5133 is configured to clamp the third wall portion 5131 and the fourth wall portion 5132 to lock the terminal post 20. When the actuating part 51 reciprocates up and down, the Z-axis direction of the pole 20 is impacted to complete the tensile test of the Z-axis direction of the pole, and the problem of the Z-axis direction test of the pole 20 (the pole 20 cannot be effectively fixed) is solved.
The present embodiment further includes a pressure sensor 6, and the pressure sensor 6 is disposed on the upper seat 3. When the actuating unit 5 impacts the pole 20 mounted on the upper seat 3, the pressure sensor 6 uploads impact force and impact frequency data, so that dynamic monitoring in the testing process is realized. The working principle of the pressure sensor 6 is prior art and will not be described in detail here.
The lifting unit 7 is fixed on the support 2 and connected with the upper seat 3. The lifting unit 7 can adopt a screw rod structure, a cylinder structure and the like in the prior art to realize lifting, so that the height of the upper seat 3 can be adjusted to be matched with the actuating unit 5.
The upper housing 3 in this embodiment includes a first member 31, a first slider 32, and a second slider 33. The first member 31 and the first slider 32 are slidably connected by a first sliding unit 34. Specifically, the first sliding unit 34 includes a first sliding slot 341 and a first sliding rail 342 engaged with the first sliding slot 341. In this embodiment, the first sliding groove 341 is disposed on the first member 31, and the first sliding rail 342 is disposed on the first sliding block 32. Therefore, the sliding adjustment of the first slider 32 relative to the first member 31 in a first direction can be realized to adjust the position of the fixing unit 4, so that the pole 20 on the cover plate 10 fixed on the fixing unit 4 corresponds to the position of the actuating portion 51.
The embodiment may further include a first locking unit 35, and the first locking unit 35 is configured to fix the first component 31 and the first slider 32 relatively. Specifically, the first locking unit 35 is connected to the first member 31 through a rod portion by a screw thread, and abuts against the first slide rail 342, so as to relatively fix the first member 31 and the first slide block 32.
The first slider 32 and the second slider 33 in this embodiment are slidably connected by a second sliding unit 36. Specifically, the second sliding unit 36 includes a second sliding slot 361 and a second sliding rail 362 matching with the second sliding slot 361. In this embodiment, the second sliding groove 341 is disposed on the second sliding block 33, and the second sliding rail 362 is disposed on the first sliding block 32. Therefore, the sliding adjustment of the second slider 33 relative to the first slider 32 in a second direction can be realized to adjust the position of the fixing unit 4, so that the pole 20 on the cover plate 10 fixed on the fixing unit 4 corresponds to the position of the actuating portion 51. The second direction is perpendicular or substantially perpendicular to the first direction to increase the range of adjustment.
The present embodiment may further include a second locking unit 37, and the second locking unit 37 is configured to fix the first sliding block 32 and the second sliding block 33 relatively. Specifically, the second locking unit 37 is connected to the second sliding block 33 through a rod portion and abuts against the second sliding rail 362, so as to relatively fix the first sliding block 32 and the second sliding block 33.
The above description of the present invention is intended to be illustrative. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (7)
1. A torsion testing apparatus, comprising:
a base;
a bracket disposed on the base;
an upper seat disposed on the bracket;
the fixing unit is detachably fixed on the upper seat, and is configured on a cover plate for fixing the power battery;
the actuating unit is arranged on the base, an actuating part is detachably arranged at the end part of the actuating unit, and the actuating unit controls the reciprocating motion of the actuating part; and
the pressure sensor is arranged on the upper seat;
the fixing unit comprises a first fixing unit, the first fixing unit comprises a first member and a second member, the first member is fixed on the upper seat and is provided with a cavity for accommodating the cover plate, the second member is fixed on the first member and at least partially covers the cavity, so that the cover plate is clamped by the first member and the second member, and the pole of the cover plate is exposed to the outside; the length direction of the cover plate extends along the axial direction of the actuating unit, the actuating part is provided with a hole, the shape of the hole is matched with that of the pole of the cover plate, and the pole of the cover plate is arranged in the hole during testing; when the actuating part moves, the hole wall impacts the pole in the X-axis direction of the pole to complete the tensile force test in the X-axis direction;
the fixing unit comprises a second fixing unit, the second fixing unit comprises a third component and a fourth component, the third component is arranged on the upper seat and is provided with a groove part, the cover plate is transversely arranged, one side of the cover plate in the width direction is arranged on the groove part, and the fourth component is fixed on the third component and is pressed on the other side of the cover plate opposite to the groove part in the width direction, so that the cover plate is fixed on the fixing unit; the actuating part comprises a pushing part aligned with the pole of the cover plate, and the pushing part impacts the side wall of the pole in the Y-axis direction to complete the tension test of the pole in the Y-axis direction;
the fixing unit comprises a third fixing unit, the third fixing unit comprises a first wall part, a second wall part and a locking unit, clamping grooves are formed in the first wall part and the second wall part, two sides of the cover plate in the width direction are clamped into the clamping grooves, and the first wall part and the second wall part are provided with grooves and are arranged oppositely to form the clamping grooves; the locking unit is arranged on the first wall part and the second wall part and is configured to clamp the first wall part and the second wall part so as to lock the cover plate; the locking unit comprises a bolt and a nut, and when the bolt is matched with the nut, the first wall part and the second wall part are clamped, so that the first wall part and the second wall part clamp and fix the cover plate;
the actuating part is provided with a clamping unit which clamps the pole of the cover plate; the clamping unit comprises a third wall part, a fourth wall part and a fastening unit, wherein a pole of the cover plate is clamped between the third wall part and the fourth wall part, and the fastening unit is configured to clamp the third wall part and the fourth wall part so as to lock the pole.
2. A torsion testing device according to claim 1, wherein: the lifting unit is fixed on the support and connected with the upper seat.
3. A torsion testing device according to claim 1 or 2, wherein: the upper seat comprises a first part, a first sliding block and a first locking unit, the first part and the first sliding block are in slidable connection through a first sliding unit, and the first locking unit is used for fixing the first part and the first sliding block relatively.
4. A torsion testing device according to claim 3, wherein: the first sliding unit comprises a first sliding groove and a first sliding rail matched with the first sliding groove, wherein the first sliding groove is arranged on the first component, and the first sliding rail is arranged on the first sliding block.
5. A torsion testing device according to claim 4, wherein: the upper seat further comprises a second sliding block and a second locking unit, the first sliding block and the second sliding block are connected in a sliding mode through a second sliding unit, and the second locking unit is configured to be used for fixing the first sliding block and the second sliding block relatively.
6. A torsion testing device according to claim 5, wherein: the second sliding unit comprises a second sliding groove and a second sliding rail matched with the second sliding groove, the second sliding groove is arranged on the second sliding block, and the second sliding rail is arranged on the first sliding block.
7. A torsion testing device according to claim 5, wherein: and the sliding adjustment of the first sliding block relative to the first component in a first direction, and the sliding adjustment of the second sliding block relative to the first sliding block in a second direction, wherein the second direction is perpendicular to the first direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110401696.9A CN113125050B (en) | 2021-04-14 | 2021-04-14 | Torsion testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110401696.9A CN113125050B (en) | 2021-04-14 | 2021-04-14 | Torsion testing device |
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| Publication Number | Publication Date |
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| CN113125050A CN113125050A (en) | 2021-07-16 |
| CN113125050B true CN113125050B (en) | 2023-02-24 |
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| CN202110401696.9A Active CN113125050B (en) | 2021-04-14 | 2021-04-14 | Torsion testing device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203432841U (en) * | 2013-07-25 | 2014-02-12 | 天津力神电池股份有限公司 | Inspection tool for fixed tension of lithium ion battery cover plate |
| CN108387448A (en) * | 2018-02-11 | 2018-08-10 | 中航锂电（洛阳）有限公司 | Battery welding tensile force testing method and battery welding tensile force testing tooling |
| CN209356292U (en) * | 2018-12-06 | 2019-09-06 | 浙江中泽精密科技有限公司 | A kind of battery cover board connection sheet tensile test fixture |
| CN211626902U (en) * | 2020-03-31 | 2020-10-02 | 蜂巢能源科技有限公司 | Testing device for battery cover plate |
| CN214538946U (en) * | 2021-04-14 | 2021-10-29 | 浙江中泽精密科技有限公司 | Torsion testing device for cover plate electrode |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206146742U (en) * | 2016-11-04 | 2017-05-03 | 北方工业大学 | Tensile test fixture device |
| CN206430833U (en) * | 2017-01-13 | 2017-08-22 | 无锡泰科纳电子材料科技有限公司 | A kind of new device for testing tensile force |
-
2021
- 2021-04-14 CN CN202110401696.9A patent/CN113125050B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203432841U (en) * | 2013-07-25 | 2014-02-12 | 天津力神电池股份有限公司 | Inspection tool for fixed tension of lithium ion battery cover plate |
| CN108387448A (en) * | 2018-02-11 | 2018-08-10 | 中航锂电（洛阳）有限公司 | Battery welding tensile force testing method and battery welding tensile force testing tooling |
| CN209356292U (en) * | 2018-12-06 | 2019-09-06 | 浙江中泽精密科技有限公司 | A kind of battery cover board connection sheet tensile test fixture |
| CN211626902U (en) * | 2020-03-31 | 2020-10-02 | 蜂巢能源科技有限公司 | Testing device for battery cover plate |
| CN214538946U (en) * | 2021-04-14 | 2021-10-29 | 浙江中泽精密科技有限公司 | Torsion testing device for cover plate electrode |
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| CN113125050A (en) | 2021-07-16 |
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Address after: No. 86 Kechuang Road, Wuzhen Town, Tongxiang City, Jiaxing City, Zhejiang Province, 314501 Patentee after: Zhejiang Zhongze Precision Technology Co.,Ltd. Country or region after: China Address before: 314031 Building 9, hi tech equipment entrepreneurship center, Xiuzhou District, Jiaxing City, Zhejiang Province Patentee before: ZHEJIANG ZZ PRECISION TECHNOLOGY CO.,LTD. Country or region before: China |