CN113029785A - Clamping mechanism and tensile force testing device for battery cover plate - Google Patents
Clamping mechanism and tensile force testing device for battery cover plate Download PDFInfo
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- CN113029785A CN113029785A CN202110271862.8A CN202110271862A CN113029785A CN 113029785 A CN113029785 A CN 113029785A CN 202110271862 A CN202110271862 A CN 202110271862A CN 113029785 A CN113029785 A CN 113029785A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0278—Thin specimens
- G01N2203/028—One dimensional, e.g. filaments, wires, ropes or cables
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Abstract
The invention relates to the technical field of batteries, and provides a clamping mechanism and a tensile force testing device for a battery cover plate. The fixture includes: a base; a first positioning member; the first positioning piece and the second positioning piece can form a clamping space for clamping a workpiece; the driving assembly comprises a pull rod piece, a first connecting rod piece and a limiting piece, the pull rod piece penetrates through the base, and one end of the pull rod piece is hinged with one end of the first connecting rod piece; the pull rod piece is movably arranged so as to drive the first positioning piece to move along the direction close to or away from the second positioning piece through the first connecting rod piece, and the limiting piece can be in limiting contact with the base when the first positioning piece and the second positioning piece clamp the workpiece, so that the pull rod piece is prevented from moving. When the first positioning piece and the second positioning piece clamp the workpiece, the limiting piece is in limiting contact with the base, so that the problem that the workpiece is separated from the first positioning piece and the second positioning piece is solved.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a clamping mechanism and a tensile force testing device for a battery cover plate.
Background
The cover plate is one of the components of the battery monomer structure assembly, and the pole of the cover plate is welded with the pin. In order to evaluate the tensile strength of the soldered pins, a tensile test machine was used to perform a tensile test experiment (fixing the cover plate, lifting the pins).
Among the correlation technique, through being provided with a fixed slot on a frock, fix the apron through the fixed slot, nevertheless because the size restriction of fixed slot to the apron of different battery models, need change the frock according to the width of difference, the process time is long, and the cost is higher, and the centre gripping stability is not high, at the tensile test process, causes the small removal of apron easily, influences the experimental data accuracy.
Disclosure of Invention
The invention provides a clamping mechanism and a tension testing device for a battery cover plate, which are used for reliably clamping a workpiece.
According to a first aspect of the present invention, there is provided a clamping mechanism comprising:
a base;
the first positioning piece is movably arranged on the base;
the first positioning piece and the second positioning piece can form a clamping space for clamping a workpiece;
the driving assembly comprises a pull rod piece, a first connecting rod piece and a limiting piece, the pull rod piece penetrates through the base, so that two ends of the pull rod piece are respectively positioned on two sides of the base, one end of the pull rod piece is hinged with one end of the first connecting rod piece, the other end of the pull rod piece is connected with the limiting piece, and the other end of the first connecting rod piece is connected with the first positioning piece;
the pull rod piece is movably arranged relative to the base, so that the first connecting rod piece drives the first positioning piece to move in the direction close to or away from the second positioning piece, and when the first positioning piece and the second positioning piece clamp a workpiece, the limiting piece can be in limiting contact with the base, and the pull rod piece is prevented from moving.
The clamping mechanism comprises a base, a first positioning piece, a second positioning piece and a driving assembly, wherein the first positioning piece and the second positioning piece are arranged on the base and used for clamping a workpiece. Through making drive assembly's pull rod piece remove to can remove through first locating part of first connecting rod piece drive, thereby change the distance between first locating part and the second locating part, with this fixed or release work piece, and when first locating part and second locating part pressed from both sides tight work piece, locating part and the spacing contact of base, thereby can avoid pull rod piece to remove, with this problem of avoiding the work piece to break away from first locating part and second locating part.
According to a second aspect of the present invention, there is provided a tension testing device for a battery cover plate, comprising the above clamping mechanism.
The tensile test device for the battery cover plate comprises a base, a first positioning piece, a second positioning piece and a driving assembly, wherein the first positioning piece and the second positioning piece are arranged on the base and used for clamping the battery cover plate. Through making drive assembly's pull rod piece remove to can remove through first locating part of first connecting rod piece drive, thereby change the distance between first locating part and the second locating part, with this fixed or release battery apron, and when first locating part and second locating part press from both sides tight battery apron, locating part and the spacing contact of base, thereby can avoid pull rod piece to remove, with this problem of avoiding battery apron to break away from first locating part and second locating part.
Drawings
For a better understanding of the present disclosure, reference may be made to the embodiments illustrated in the following drawings. The components in the drawings are not necessarily to scale, and related elements may be omitted in order to emphasize and clearly illustrate the technical features of the present disclosure. In addition, the relevant elements or components may be arranged differently as is known in the art. Further, in the drawings, like reference characters designate the same or similar parts throughout the several views. Wherein:
FIG. 1 is a schematic diagram illustrating an application of a clamping mechanism according to an exemplary embodiment;
FIG. 2 is a schematic diagram illustrating a first perspective of a clamping mechanism according to an exemplary embodiment;
FIG. 3 is a schematic diagram illustrating a second perspective of a clamping mechanism according to an exemplary embodiment;
FIG. 4 is a schematic illustration of a partial structure of a clamping mechanism according to an exemplary embodiment;
FIG. 5 is a schematic diagram illustrating a first positioning member of a clamping mechanism according to an exemplary embodiment;
FIG. 6 is a schematic diagram illustrating a drive assembly of a clamping mechanism according to an exemplary embodiment.
The reference numerals are explained below:
1. a workpiece; 2. a clamping space; 10. a base; 11. a first connection portion; 12. an accommodating space; 20. a first positioning member; 21. a second connecting portion; 22. a first limiting part; 23. connecting grooves; 30. a second positioning member; 31. a second limiting part; 40. a drive assembly; 41. a pull rod member; 411. an external thread; 42. a first link member; 43. a limiting member; 431. a first segment; 432. embossing; 433. a second segment; 44. a second link member; 45. positioning pins; 46. a pull rod positioning pin; 47. a gasket; 50. a connecting rod.
Detailed Description
The technical solutions in the exemplary embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the exemplary embodiments of the present disclosure. The example embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present disclosure, and it is, therefore, to be understood that various modifications and changes may be made to the example embodiments without departing from the scope of the present disclosure.
In the description of the present disclosure, unless otherwise explicitly specified or limited, the terms "first", "second", and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more; the term "and/or" includes any and all combinations of one or more of the associated listed items. In particular, reference to "the" object or "an" object is also intended to mean one of many such objects possible.
The terms "connected," "secured," and the like are to be construed broadly and unless otherwise stated or indicated, and for example, "connected" may be a fixed connection, a removable connection, an integral connection, an electrical connection, or a signal connection; "connected" may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present disclosure can be understood by those skilled in the art as the case may be.
Further, in the description of the present disclosure, it is to be understood that the directional words "upper", "lower", "inner", "outer", etc., which are described in the exemplary embodiments of the present disclosure, are described at the angles shown in the drawings, and should not be construed as limiting the exemplary embodiments of the present disclosure. It will also be understood that, in this context, when an element or feature is referred to as being "on", "under", or "inner", "outer" with respect to another element(s), it can be directly on "," under ", or" inner "," outer "with respect to the other element(s), or indirectly on", "under", or "inner", "outer" with respect to the other element(s) via intervening elements.
An embodiment of the present invention provides a clamping mechanism, please refer to fig. 1 and fig. 2, the clamping mechanism includes: a base 10; a first positioning member 20, the first positioning member 20 being movably disposed on the base 10; a second positioning member 30, the second positioning member 30 being disposed on the base 10, the first positioning member 20 and the second positioning member 30 being capable of forming a clamping space 2 for clamping the workpiece 1; the driving assembly 40 includes a pull rod 41, a first link 42 and a limiting member 43, the pull rod 41 is disposed on the base 10, so that two ends of the pull rod 41 are respectively located at two sides of the base 10, one end of the pull rod 41 is hinged to one end of the first link 42, the other end of the pull rod 41 is connected to the limiting member 43, and the other end of the first link 42 is connected to the first positioning member 20; the pull rod 41 is movably disposed relative to the base 10, so that the first connecting rod 42 drives the first positioning element 20 to move in a direction approaching or separating from the second positioning element 30, and when the first positioning element 20 and the second positioning element 30 clamp the workpiece 1, the limiting element 43 can be in limiting contact with the base 10, so as to prevent the pull rod 41 from moving.
The clamping mechanism of one embodiment of the invention comprises a base 10, a first positioning member 20, a second positioning member 30 and a driving assembly 40, wherein the first positioning member 20 and the second positioning member 30 arranged on the base 10 are used for clamping a workpiece 1. The pull rod 41 of the driving assembly 40 is moved, so that the first positioning element 20 can be driven to move through the first connecting rod 42, the distance between the first positioning element 20 and the second positioning element 30 is changed, the workpiece 1 is fixed or released, and when the first positioning element 20 and the second positioning element 30 clamp the workpiece 1, the limiting element 43 is in limiting contact with the base 10, so that the pull rod 41 can be prevented from moving, and the problem that the workpiece 1 is separated from the first positioning element 20 and the second positioning element 30 is avoided.
It should be noted that, when the workpiece 1 is placed between the first positioning element 20 and the second positioning element 30, the distance formed by the clamping space 2 may be larger than the size of the workpiece 1, and after the workpiece 1 is placed between the first positioning element 20 and the second positioning element 30, the pull rod element 41 is moved, so that the first link element 42 drives the first positioning element 20 to move, at this time, the first link element 42 rotates relative to the pull rod element 41, and the first positioning element 20 moves close to the second positioning element 30, so as to reduce the distance between the first positioning element 20 and the second positioning element 30, thereby achieving reliable clamping of the workpiece 1.
When the workpiece 1 is released, the pull rod 41 moves in the opposite direction, so that the first link 42 drives the first positioning element 20 to move away from the second positioning element 30, thereby increasing the distance between the first positioning element 20 and the second positioning element 30, and thus releasing the workpiece 1 is achieved.
It should be noted that when the first positioning element 20 and the second positioning element 30 clamp the workpiece 1, the limiting element 43 can be in limiting contact with the base 10, and not particularly limited to that when the first positioning element 20 and the second positioning element 30 clamp the workpiece 1, the limiting element 43 can also be in limiting contact with the base 10, and the limiting contact between the limiting element 43 and the base 10 can be achieved by subsequently adjusting the position of the limiting element 43.
In some embodiments, when the pull rod 41 moves, the limiting member 43 may not move along with the pull rod 41, and when the pull rod 41 moves to the right position, that is, when the first positioning member 20 and the second positioning member 30 clamp the workpiece 1, the limiting member 43 moves relative to the pull rod 41, the limiting member 43 is fixedly connected to the pull rod 41, and the limiting member 43 is in limiting contact with the base 10, at this time, due to the limiting contact between the limiting member 43 and the base 10, the workpiece 1 may provide an urging force for the first positioning member 20, but cannot urge the pull rod 41 to move, so that the self-locking of the driving assembly 40 and the base 10 is achieved. When releasing the workpiece 1, the limiting contact between the limiting member 43 and the base 10 may be released first.
In some embodiments, when the pull rod 41 moves, the limiting member 43 can also move along with the pull rod 41, and when the pull rod 41 moves to the right position, that is, when the first positioning member 20 and the second positioning member 30 clamp the workpiece 1, the limiting member 43 and the pull rod 41 are fixedly connected, and the limiting member 43 and the base 10 are in limiting contact.
It should be noted that the fixed connection between the limiting member 43 and the pulling rod 41 may be a threaded connection, or a clamping connection, as long as the relative movement between the limiting member 43 and the pulling rod 41 can be ensured, and the fixed connection can be realized. The limiting contact between the limiting member 43 and the base 10 may be only surface-to-surface direct contact, or may be limited contact by means of clamping or the like. For example, the pull rod 41 may be provided with a plurality of first engaging portions, and the limiting member 43 is provided with a second engaging portion, when the pull rod 41 moves, the distance between the first positioning member 20 and the second positioning member 30 is controlled according to the length of the pull rod 41 passing through the base 10, so that the second engaging portion can be selectively engaged with one of the first engaging portions, thereby achieving the fixed connection between the limiting member 43 and the pull rod 41, and the limiting member 43 is in limiting contact with the base 10.
In one embodiment, the second positioning member 30 is fixedly disposed on the base 10, that is, the distance between the first positioning member 20 and the second positioning member 30 can be adjusted only by adjusting the position of the first positioning member 20.
In one embodiment, the second positioning member 30 is movably disposed on the base 10, thereby efficiently controlling the distance between the first positioning member 20 and the second positioning member 30.
In some embodiments, the clamping mechanism may further include a driving portion, which is drivingly connected to the second positioning member 30 to drive the second positioning member 30 to move in a direction approaching or moving away from the first positioning member 20. The driving part may include a driving structure in related art, such as an air cylinder, an oil cylinder, and a motor, as long as it can ensure that the second positioning member 30 can be driven to move.
In one embodiment, as shown in fig. 3, the driving assembly 40 further includes: the second link 44, one end of the second link 44 is hinged to the pull rod 41, and the other end of the second link 44 is connected to the second positioning element 30, so that when the pull rod 41 moves, the pull rod 41 drives the first positioning element 20 and the second positioning element 30 to move through the first link 42 and the second link 44, respectively, thereby ensuring the first positioning element 20 and the second positioning element 30 to move synchronously and relatively or move away from each other synchronously, and on the basis of reducing the driving structure, the driving efficiency can be improved, and the synchronous movement can realize the centered clamping of the workpiece 1.
Specifically, as shown in fig. 3 and 4, when the pull rod 41 moves from left to right, the first link 42 and the second link 44 are pushed by the pull rod 41, an included angle between the first link 42 and the second link 44 increases, that is, the first positioning element 20 and the second positioning element 30 move away from each other synchronously, and a distance between the first positioning element 20 and the second positioning element 30 increases. When the pull rod 41 moves from right to left, the first link 42 and the second link 44 are pushed by the pull rod 41, and the included angle between the first link 42 and the second link 44 is reduced, that is, the first positioning element 20 and the second positioning element 30 synchronously move relatively, and the distance between the first positioning element 20 and the second positioning element 30 is reduced.
It should be noted that, the moving directions of the first positioning element 20 and the second positioning element 30 are perpendicular to the moving direction of the pull rod 41, that is, the first positioning element 20 and the second positioning element 30 realize the limitation of the moving direction of the pull rod 41 through the first link 42 and the second link 44, and ensure that each component moves according to a predetermined direction.
In one embodiment, as shown in fig. 6, the driving assembly 40 further includes: the positioning pin 45, the first link member 42 and the second link member 44 are connected with the pull rod member 41 through the positioning pin 45; the first link 42 and the second link 44 are overlapped, so that the first link 42 and the second link 44 are reasonably arranged, and the connection with the pull rod 41 can be realized through one positioning pin 45.
Further, the first link member 42 and the second link member 44 are hinged to the positioning pin 45, and the positioning pin 45 can be fixedly connected to the pull rod member 41, so as to ensure that the first link member 42 and the second link member 44 can rotate relative to the pull rod member 41.
In one embodiment, as shown in fig. 6, the driving assembly 40 further includes a pull rod positioning pin 46 and a washer 47, the first link member 42 is connected with the first positioning member 20 through the pull rod positioning pin 46, and the washer 47 is located between the first link member 42 and the first positioning member 20.
Accordingly, the second link member 44 is connected to the second positioning member 30 through the pull rod positioning pin 46, and the washer 47 is located between the second link member 44 and the second positioning member 30.
Considering that the first link member 42 and the second link member 44 are overlapped, for example, when the second link member 44 is positioned above the first link member 42, the upper surface of the washer 47 on the first link member 42 may be made flush with the upper surface of the washer 47 on the second link member 44 by adjusting the thickness of the members. It is of course possible to make the upper surface of the washer 47 on the first link member 42 not level with the upper surface of the washer 47 on the second link member 44, which is not limited herein.
In some embodiments, the first positioning member 20 may be provided with a coupling groove 23, and the gasket 47 may be positioned in the coupling groove 23. Accordingly, a similar structure may be provided on the second positioning member 30.
It should be noted that the first positioning member 20 and the second positioning member 30 may have identical structures, or the first positioning member 20 and the second positioning member 30 may have different structures.
In one embodiment, as shown in fig. 4 and 5, the base 10 is provided with a first connecting portion 11, the first positioning member 20 is provided with a second connecting portion 21, and the first connecting portion 11 is adapted to the second connecting portion 21, that is, the base 10 and the first positioning member 20 are connected and positioned by the first connecting portion 11 and the second connecting portion 21, and it is ensured that the first positioning member 20 moves along the base 10 along a predetermined installation track.
Further, one of the first connecting portion 11 and the second connecting portion 21 is a protrusion, and the other is a groove. The first connecting portion 11 may be a slide rail, and the second connecting portion 21 may be a slider, and a groove adapted to the slide rail is disposed on the slider. Alternatively, the first connecting portion 11 may be a slide rail, and the second connecting portion 21 may be a groove.
In some embodiments, the first connection portion 11 and the second connection portion 21 may be provided in pairs, so that the base 10 achieves the limit of the first positioning member 20.
It should be noted that, the matching manner of the second positioning element 30 and the base 10 can also refer to the matching manner of the first positioning element 20 and the base 10, which is not described herein again. The first positioning member 20 and the second positioning member 30 may share the first connection portion 11 of the base 10, that is, the first connection portion 11 may be a whole, and different first connection portions 11 may be used.
In some embodiments, the base 10 may include a plurality of independent structures, for example, the base 10 may include a first body and a second body that are independently disposed, the first body may be disposed with the first positioning element 20 and the second positioning element 30, the second body is used for connecting the driving assembly 40, that is, the pull rod 41 may be disposed on the second body, two ends of the pull rod 41 are respectively located at two opposite sides of the second body, and the limiting element 43 can be in limiting contact with the second body. Or, the pulling rod 41 may pass through the second body and the first body, that is, two ends of the pulling rod 41 are respectively located at two sides of the second body and the first body, at this time, two ends of the pulling rod 41 are still respectively located at two sides of the base 10, and the limiting member 43 can be in limiting contact with the second body.
In some embodiments, the base 10 is a unitary structure, i.e., the base 10 is a unitary structure, which is relatively simple and has relatively high stability.
It should be noted that the base 10 is an integrated structure, and the integrated structure may be formed by molding a plurality of independent components and then fixedly connecting the independent components. The unitary structure may also be an integrally formed structure.
Further, as shown in fig. 4, the base 10 has an accommodating space 12, at least a portion of the first positioning element 20 and the second positioning element 30 is located in the accommodating space 12, the first link 42 is located in the accommodating space 12, that is, the first positioning element 20 and the second positioning element 30 are limited on the base 10, and the first link 42 drives the first positioning element 20 in the accommodating space 12. In the present embodiment, the second link member 44 is also located in the accommodating space 12, and the second link member 44 drives the second positioning member 30 in the accommodating space 12.
In some embodiments, as shown in fig. 2 and 3, the base 10 includes a U-shaped structure and two connecting blocks at two ends of the U-shaped structure, and the two connecting blocks form a first connecting portion 11 for cooperating with the first positioning member 20 and the second positioning member 30.
In some embodiments, as shown in fig. 5, the first positioning element 20 is provided with a first limiting portion 22, the second positioning element 30 is provided with a second limiting portion 31, and the first limiting portion 22 and the second limiting portion 31 are disposed opposite to each other for clamping the workpiece 1, that is, the first limiting portion 22 and the second limiting portion 31 can reliably clamp the workpiece 1, so as to prevent the workpiece 1 from falling off.
Further, the first position-limiting portion 22 and the second position-limiting portion 31 may be grooves or protrusions, and the grooves or the protrusions may be selected according to the specific structural form of the workpiece 1, for example, when the workpiece 1 is a battery cover plate, the first position-limiting portion 22 and the second position-limiting portion 31 may be grooves, and the battery cover plate is inserted into the grooves. When the battery cover plate is used specifically, the distance between the first limiting portion 22 and the second limiting portion 31 may be greater than the width of the battery cover plate, and after the battery cover plate is inserted into the groove, the first positioning member 20 and the second positioning member 30 may move relatively, so as to clamp the battery cover plate.
In some embodiments, the first positioning member 20 and the second positioning member 30 may both be jaw structures.
In one embodiment, as shown in fig. 6, the pulling rod 41 includes an external thread 411, and the limiting member 43 includes an internal thread adapted to the external thread 411, so that when the limiting member 43 is rotated, the pulling rod 41 can move, that is, the limiting member 43 can also be used as a driving structure, when the limiting member 43 is rotated, since the pulling rod 41 is radially limited by the first connecting rod 42 and the first positioning member 20, the pulling rod 41 can move, and at this time, the pulling rod 41 drives the first positioning member 20 to move through the first connecting rod 42.
Further, the first link 42 and the second link 44 are both hinged to the pull rod 41, so that when the limiting member 43 is rotated, the pull rod 41 can drive the first positioning member 20 and the second positioning member 30 to move through the first link 42 and the second link 44, and when the first positioning member 20 and the second positioning member 30 clamp the workpiece 1, if the limiting member 43 is not yet in contact with the base 10, the limiting member 43 can be rotated again, and since the axial movement of the pull rod 41 is also limited, the limiting member 43 can rotate as the pull rod 41, and thus the limiting contact with the base 10 can be achieved. When the first positioning element 20 and the second positioning element 30 release the workpiece 1, the limiting element 43 can be rotated reversely.
Alternatively, the pulling member 41 may be a screw.
In one embodiment, as shown in fig. 6, the limiting member 43 includes: a first block 431, the circumferential outer surface of which is provided with embossings 432; the second section 433 is connected with the first section 431, and the second section 433 can be in limited contact with the base 10; at least one of the first segment 431 and the second segment 433 is provided with an internal thread. The embossings 432 on the circumferential outer surface of the first segment 431 can be conveniently operated, so that the rotation of the limiting member 43 can be realized, namely, the contact friction force can be increased, and the rotation of the limiting member 43 can be ensured, while the circumferential outer surface of the second segment 433 can be not specially treated due to the limited contact with the base 10, and can be only a smooth surface, and certainly, the embossings 432 are not excluded.
In some embodiments, the diameter of the first segment 431 may be greater than that of the second segment 433, and the length of the first segment 431 may be greater than that of the second segment 433, which is not limited herein and may be selected according to actual requirements.
The embodiment of the invention also provides a tensile testing device for the battery cover plate, which comprises the clamping mechanism.
The tensile testing device for the battery cover plate according to one embodiment of the invention comprises a base 10, a first positioning member 20, a second positioning member 30 and a driving assembly 40, wherein the first positioning member 20 and the second positioning member 30 arranged on the base 10 are used for clamping the battery cover plate. The first positioning element 20 can be driven to move by the first connecting rod element 42 by moving the pull rod element 41 of the driving assembly 40, so that the distance between the first positioning element 20 and the second positioning element 30 is changed, the battery cover plate is fixed or released, and when the battery cover plate is clamped by the first positioning element 20 and the second positioning element 30, the limiting element 43 is in limiting contact with the base 10, so that the pull rod element 41 can be prevented from moving, and the problem that the battery cover plate is separated from the first positioning element 20 and the second positioning element 30 is avoided.
In one embodiment, the device for testing the tension of the battery cover plate further comprises a tension tester, the base 10 is provided with a connecting rod 50, and the clamping mechanism is arranged on the table top of the tension tester through the connecting rod 50.
As shown in fig. 1, after the battery cover plate is clamped between the first positioning member 20 and the second positioning member 30, the position of the battery cover plate to be tested is located right above the connecting rod 50, and the pulled pin end of the battery cover plate is clamped on the tensile testing machine, so as to pull the pin end upward, and test the tensile force when the pin is broken.
The clamping mechanism realizes the width adjustability of the first positioning piece and the second positioning piece through a set of driving components, and can be adapted to cover plates of various battery models. And the cooperation of locating part, pull rod spare and base realizes the self-locking function, can firmly press from both sides tight battery apron, guarantees the reliability of tensile force experiment data. The clamping mechanism is simple and exquisite in structure and low in cost; the clamping is firm, and the reliability of the welding tension test process of the pins of the cover plate is ensured; the battery cover plate can be suitable for cover plates of various battery models, and has strong compatibility.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and example embodiments be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (10)
1. A clamping mechanism, comprising:
a base (10);
a first positioning member (20), the first positioning member (20) being movably disposed on the base (10);
a second positioning member (30), wherein the second positioning member (30) is arranged on the base (10), and the first positioning member (20) and the second positioning member (30) can form a clamping space (2) for clamping a workpiece (1);
the driving assembly (40) comprises a pull rod piece (41), a first connecting rod piece (42) and a limiting piece (43), the pull rod piece (41) penetrates through the base (10) so that two ends of the pull rod piece (41) are located on two sides of the base (10) respectively, one end of the pull rod piece (41) is hinged to one end of the first connecting rod piece (42), the other end of the pull rod piece (41) is connected with the limiting piece (43), and the other end of the first connecting rod piece (42) is connected with the first positioning piece (20);
the pull rod piece (41) is movably arranged relative to the base (10) so as to drive the first positioning piece (20) to move along a direction close to or far away from the second positioning piece (30) through the first connecting rod piece (42), and when the workpiece (1) is clamped by the first positioning piece (20) and the second positioning piece (30), the limiting piece (43) can be in limiting contact with the base (10) so as to prevent the pull rod piece (41) from moving.
2. Clamping mechanism according to claim 1, wherein the second positioning element (30) is movably arranged on the base (10).
3. The clamping mechanism of claim 2, wherein the drive assembly (40) further comprises:
one end of the second connecting rod piece (44) is hinged to the pull rod piece (41), and the other end of the second connecting rod piece (44) is connected with the second positioning piece (30), so that when the pull rod piece (41) moves, the pull rod piece (41) drives the first positioning piece (20) and the second positioning piece (30) to move through the first connecting rod piece (42) and the second connecting rod piece (44) respectively;
the moving directions of the first positioning piece (20) and the second positioning piece (30) are perpendicular to the moving direction of the pull rod piece (41).
4. The clamping mechanism of claim 3, wherein the drive assembly (40) further comprises:
a positioning pin (45), wherein the first connecting rod piece (42) and the second connecting rod piece (44) are connected with the pull rod piece (41) through the positioning pin (45);
wherein the first link member (42) and the second link member (44) are overlapped.
5. Clamping mechanism according to claim 1, characterized in that a first connecting part (11) is arranged on the base (10), a second connecting part (21) is arranged on the first positioning element (20), and the first connecting part (11) is adapted to the second connecting part (21);
wherein one of the first connecting part (11) and the second connecting part (21) is a protrusion, and the other one is a groove.
6. Clamping mechanism according to claim 1, characterized in that the base (10) is a one-piece structure, the base (10) having a receiving space (12), at least part of the first positioning element (20) and the second positioning element (30) being located in the receiving space (12), the first link member (42) being located in the receiving space (12).
7. The clamping mechanism according to claim 1, wherein the first positioning member (20) is provided with a first limiting portion (22), the second positioning member (30) is provided with a second limiting portion (31), and the first limiting portion (22) and the second limiting portion (31) are arranged oppositely to clamp the workpiece (1).
8. The clamping mechanism according to any one of claims 1 to 7, wherein the pull rod member (41) comprises an external thread (411), and the limiting member (43) comprises an internal thread adapted to the external thread (411), such that the pull rod member (41) is movable when the limiting member (43) is rotated.
9. The clamping mechanism according to claim 8, wherein the stop (43) comprises:
a first segment (431), the circumferential outer surface of the first segment (431) being provided with embossings (432);
the second section (433) is connected with the first section (431), and the second section (433) can be in limit contact with the base (10);
wherein at least one of the first segment (431) and the second segment (433) is provided with the internal thread.
10. A tensile testing apparatus for a battery cover plate, comprising the clamping mechanism of any one of claims 1 to 9.
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| CN202110271862.8A CN113029785B (en) | 2021-03-12 | 2021-03-12 | Clamping mechanism and tensile force testing device for battery cover plate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110271862.8A CN113029785B (en) | 2021-03-12 | 2021-03-12 | Clamping mechanism and tensile force testing device for battery cover plate |
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| CN113029785A true CN113029785A (en) | 2021-06-25 |
| CN113029785B CN113029785B (en) | 2022-03-04 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203287255U (en) * | 2013-06-24 | 2013-11-13 | 深圳市倍特力电池有限公司 | Tension testing device |
| KR20180037886A (en) * | 2016-10-05 | 2018-04-13 | 주식회사 엘지화학 | Safety test apparatus of battery cell |
| 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 |
| CN211262967U (en) * | 2019-10-25 | 2020-08-14 | 合肥国轩高科动力能源有限公司 | Experiment frock for battery welding utmost point ear tensile test |
| CN111912707A (en) * | 2020-08-08 | 2020-11-10 | 杨秋燕 | Battery cover plate pressure test fixture |
-
2021
- 2021-03-12 CN CN202110271862.8A patent/CN113029785B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203287255U (en) * | 2013-06-24 | 2013-11-13 | 深圳市倍特力电池有限公司 | Tension testing device |
| KR20180037886A (en) * | 2016-10-05 | 2018-04-13 | 주식회사 엘지화학 | Safety test apparatus of battery cell |
| 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 |
| CN211262967U (en) * | 2019-10-25 | 2020-08-14 | 合肥国轩高科动力能源有限公司 | Experiment frock for battery welding utmost point ear tensile test |
| CN111912707A (en) * | 2020-08-08 | 2020-11-10 | 杨秋燕 | Battery cover plate pressure test fixture |
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| CN113029785B (en) | 2022-03-04 |
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Address after: No.1 Jiangdong Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee after: Zhongchuangxin Aviation Technology Co.,Ltd. Patentee after: AVIC lithium (Xiamen) Technology Co.,Ltd. Address before: No.1 Jiangdong Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee before: AVIC lithium Technology Co.,Ltd. Patentee before: AVIC lithium (Xiamen) Technology Co.,Ltd. Address after: No.1 Jiangdong Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee after: AVIC lithium Technology Co.,Ltd. Patentee after: AVIC lithium (Xiamen) Technology Co.,Ltd. Address before: No.1 Jiangdong Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee before: AVIC lithium Technology Co.,Ltd. Patentee before: AVIC lithium (Xiamen) Technology Co.,Ltd. |
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Address after: No.1 Jiangdong Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee after: Zhongchuangxin Aviation Technology Co.,Ltd. Patentee after: Zhongchuangxin aviation new energy (Xiamen) Co.,Ltd. Address before: No.1 Jiangdong Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee before: Zhongchuangxin Aviation Technology Co.,Ltd. Patentee before: AVIC lithium (Xiamen) Technology Co.,Ltd. |