CN220690656U - Tension test fixture for battery cover plate - Google Patents

Abstract

The utility model discloses a tensile force testing clamp for a battery cover plate, which comprises a clamp main body, a first limiting hook and a second limiting hook; the first limiting hook claw is fixedly arranged on the clamp main body, and a sliding rail for sliding the second limiting hook claw is arranged on the clamp main body in a penetrating manner; an opening for the battery cover plate to go in and out is arranged between the first limiting hook and the second limiting hook, and the second limiting hook slides back and forth relative to the first limiting hook, so that the opening has a clamping state and an opening state. By adopting the technical scheme of the utility model, when the connecting piece of the battery cover plate is clamped by the clamping head part to be pulled upwards for testing, the acting force applied to the battery cover plate can be always in the center of the connecting piece, so that the deformation of a product caused by the inclination and bending phenomena of the battery cover plate is prevented, the smooth performance of the tensile testing of the battery cover plate is ensured, the stability of the tensile testing device is firmer, the product quality is ensured, and the additional expenditure risk is reduced.

Description

Tension test fixture for battery cover plate

Technical Field

The utility model relates to the technical field of tensile testing fixtures, in particular to a tensile testing fixture for a battery cover plate.

Background

The tensile test is also called a tensile strength test, and is a test method for measuring the performance of a material under tensile load, and various test methods are usually stretching, compressing, bending, shearing, peeling, tearing and the like. The tensile property indexes such as the elastic limit, the elongation, the elastic modulus, the proportion limit, the area reduction, the tensile strength, the yield point, the tearing strength, the yield strength and the like of the material can be determined by using the data obtained by the tensile test, and the mechanical properties of various materials can be accurately judged by a factory, so that the quality, the safety, the durability and the like of the material can be better judged.

The clamp is used as a necessary mechanical part for a stretching experiment, and naturally has various models and styles, most of clamps and stretching chucks used for testing connecting sheets on a battery cover plate at present are mainly wedge-shaped, the clamp part and the chuck part are wedge-shaped grippers, and the clamp part and the chuck part both adopt a flat jaw type clamping mode when clamping the battery cover plate, so that the battery cover plate has the following results: when the clamping head part clamps the connecting sheet to dial upwards for tensile testing, the whole battery cover plate can incline and bend because the acting force is not at the center of the battery cover plate, the clamping object to be tested is very unstable, the phenomenon of slipping of the battery cover plate main body or the connecting sheet is very easy to occur, the experiment is failed, the tensile testing of the product performance is influenced to a certain extent, the product structure of the battery cover plate is possibly damaged, and the consumption is caused by aggravated loss.

Disclosure of Invention

The utility model provides a tensile test fixture for a battery cover plate, which overcomes the defects in the background art and adopts the following technical scheme:

a tensile force test clamp for a battery cover plate comprises a clamp main body, a first limiting hook claw and a second limiting hook claw; the first limiting hook claw is fixedly arranged on the clamp main body, and a sliding rail for sliding the second limiting hook claw is arranged on the clamp main body in a penetrating manner; an opening for the battery cover plate to go in and out is formed between the first limiting hook and the second limiting hook, and the second limiting hook slides back and forth relative to the first limiting hook, so that the opening has a clamping state and an opening state; the clamp body is concavely provided with an inclined groove, and when the opening is in an open state, the battery cover plate enters the opening and is placed in the inclined groove to be abutted with the bottom of the groove; when the opening is in a clamping state, the second limiting hook claw drives the battery cover plate to be obliquely abutted on the first limiting hook claw along the inclined groove so as to limit the movement of the battery cover plate in the up-down direction.

Preferably, the bottom of the inclined groove is obliquely upwards arranged from the opening to the first limit hook claw.

Preferably, the clamp body is provided with a guide opening, and the second limiting hook slides back and forth relative to the first limiting hook through the guide opening.

Preferably, the second limiting hook is provided with a sliding rod, and the second limiting hook is arranged on the sliding rail in a sliding way through the sliding rod.

Preferably, the sliding rod is provided with a limiting pin to limit the sliding travel of the second limiting hook relative to the first limiting hook.

Preferably, the clamp also comprises a clamp base, and the clamp main body is fixedly arranged on the clamp base.

Preferably, the clamp body is provided with an adjusting through hole, and when the clamp body is fixedly arranged on the clamp base, the relative position between the clamp body and the clamp base is adjusted through the adjusting through hole.

Preferably, the first limiting hook and the clamp main body are of a split type structure.

As can be seen from the above description of the present utility model, the present utility model has the following advantages over the prior art:

(1) According to the technical scheme, the problem that the existing clamp part and the clamping head part adopt a flat jaw type clamping mode, so that the slipping phenomenon occurs when the battery cover plate is subjected to tensile test, and the clamping is unstable is solved. Through being provided with first spacing knuckle and the spacing knuckle of second, have the opening that supplies battery apron to come in and go out between first spacing knuckle and the spacing knuckle of second, both relative movement enable the opening to have clamping state and open state, the switching of two states can the centre gripping not battery apron of equidimension, can also restrict the restriction about and upper and lower position of battery apron during the centre gripping for when the connection piece that chuck part centre gripping battery apron was gone on dialling upwards and is carried out tensile test, the effort that battery apron received all can all be in its center, in order to prevent that the battery apron from appearing the slope, crooked phenomenon leads to the product to warp, guarantee going on smoothly of battery apron tensile test, its steadiness is more firm, product quality can also be guaranteed, reduce extra expenditure risk.

(2) Through concavely arranging an inclined groove in the clamp main body, when the opening is in an open state, the battery cover plate is placed in the inclined groove to be abutted with the groove bottom for reservation and fixation, and the battery cover plate is prevented from moving left and right before clamping, so that the battery cover plate is positioned; when the opening is in a clamping state, the second limiting hook claw drives the battery cover plate to be in inclined butt joint with the first limiting hook claw along the inclined groove so as to limit the movement of the battery cover plate in the up-down direction. Therefore, through the clamping mode that the inclination upwards from low to high, the battery cover plate is deeply sunk in the inclined groove and then is clamped along the rising of the inclined groove, so that the battery cover plates with various sizes can be clamped in an adaptive mode, the first limiting hook and the second limiting hook are higher in practicability and wider in application range, and the clamp is prevented from being updated frequently.

(3) Through set up a guiding mouth on the anchor clamps main part to make things convenient for the second spacing knuckle to stably slide in the anchor clamps main part, guarantee that the second spacing knuckle can not appear the skew or slope when sliding.

(4) Through set up a spacer pin on the slide bar to the slip stroke of restriction second spacing claw relative first spacing claw prevents that the second spacing claw from directly coming off by the anchor clamps main part in the slip in-process.

(5) Through setting up the abrasive layer on the slide bar to guarantee that the relative first spacing claw of second spacing claw is by sliding, when making the opening keep holding state or open the state, the slide bar can not lead to the self-sliding because of touched by mistake, promptly, makes the slide bar have certain friction relative anchor clamps main part, prevents that the slide bar from appearing the displacement phenomenon by oneself.

(6) The clamp body is provided with the adjusting through hole, so that when the clamp body is fixedly arranged on the clamp base, the position of the clamp body relative to the clamp base can be adjusted, and the opening can correspond to the clamping head part conveniently.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of a battery cover clamped by a first limit hook and a second limit hook according to an embodiment of the present utility model;

FIG. 2 is an overall exploded view of an embodiment of the present utility model;

FIG. 3 is a schematic view illustrating a structure in which an opening is in a clamped state according to an embodiment of the present utility model;

FIG. 4 is a schematic view of an embodiment of an opening in an open state;

FIG. 5 is a schematic view of a battery cover plate with an access opening reserved to an inclined slot;

fig. 6 is a schematic structural diagram of a battery cover clamped by a first limiting hook and a second limiting hook according to an embodiment of the present utility model;

fig. 7 is a schematic structural view of the chuck portion according to the embodiment of the utility model.

The reference numerals are explained as follows: 1. a clamp body; 11. a slide rail; 12. an inclined groove; 13. a guide opening; 10. adjusting the through hole; 2. the first limit claw; 3. the second limiting hook claw; 31. a slide bar; 311. a limiting pin; 4. a clamp base; A. an opening; B. a collet section.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It is to be understood that the described embodiments are preferred embodiments of the utility model and should not be taken as excluding other embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without creative efforts, are within the protection scope of the present utility model.

In the claims, specification and drawings hereof, unless explicitly defined otherwise, the terms "first," "second," or "third," etc. are used for distinguishing between different objects and not for describing a particular sequential order.

In the claims, specification and drawings of the present utility model, unless explicitly defined otherwise, references to orientation or positional relationship such as the terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", "left", "right", "clockwise", "counterclockwise", etc. are based on the orientation and positional relationship shown in the drawings and are merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or element referred to must have a particular orientation or be constructed and operated in a particular orientation, nor should it be construed as limiting the particular scope of the utility model.

In the claims, specification and drawings of the present utility model, unless explicitly defined otherwise, the term "fixedly connected" or "fixedly connected" should be construed broadly, i.e. any connection between them without a displacement relationship or a relative rotation relationship, that is to say includes non-detachably fixedly connected, integrally connected and fixedly connected by other means or elements.

In the claims, specification and drawings of the present utility model, the terms "comprising," having, "and variations thereof as used herein, are intended to be" including but not limited to.

Please refer to fig. 1 to 7.

The utility model provides a tension test clamp for a battery cover plate, which solves the problems that the existing clamp part and a clamping head part B adopt a flat jaw type clamping mode, so that the battery cover plate has slipping phenomenon and unstable clamping when the tension test is performed.

In this embodiment, the method includes: the clamp comprises a clamp body 1, a first limiting hook 2 and a second limiting hook 3; the first limiting hook claw 2 is fixedly arranged on the clamp main body 1, the clamp main body 1 is provided with a sliding rail 11 for sliding the second limiting hook claw 3 in a penetrating way, and the second limiting hook claw 3 can slide back and forth in the sliding rail 11; an opening A for a battery cover plate to go in and out is arranged between the first limiting hook 2 and the second limiting hook 3, and the second limiting hook 3 slides back and forth relative to the first limiting hook 2, so that the opening A has a clamping state and an opening state. Therefore, when the opening A is in an opened state, the battery cover plate can be placed on the clamp main body 1 in advance to wait for clamping; when the opening A is in a clamping state, the first limiting hook claw 2 and the second limiting hook claw 3 can clamp the battery cover plate, namely, the battery cover plates with different sizes can be clamped through switching of the two states, and constraint and limitation can be carried out on the left and right directions and the upper and lower directions of the battery cover plate during clamping, so that the clamping head part B clamps the connecting piece of the battery cover plate to be upwards pulled for testing, and acting force applied to the battery cover plate can be always in the center of the clamping head part B.

In this embodiment, the first limiting hook 2 and the second limiting hook 3 are of an existing hook structure, the two hooks correspond to each other, and the opening a is formed between the hooks; when the battery cover plate is positioned in the opening A, and the first limiting hook claw 2 and the second limiting hook claw 3 clamp the battery cover plate, the two hooks are firstly abutted against the two sides of the battery cover plate to prevent the battery cover plate from moving left and right; when carrying out tensile test, two hooks can hook the battery apron, exert the restriction force to the battery apron promptly, prevent that the battery apron from moving upwards, simultaneously because the structural feature of crotch, when the battery apron was hooked by the crotch, produce opposite effort and can gather in the central point of battery apron. Therefore, if the existing flat-nose pliers type clamping mode is adopted, under the limiting action of no hooks, the battery cover plate can slide under the driving of the clamping head, so that the slipping phenomenon is caused.

In this embodiment, the clamp body 1 is concavely provided with an inclined groove 12, the inclined groove 12 is located on the opening a between the first limiting hook 2 and the second limiting hook 3, the groove bottom of the inclined groove 12 is obliquely upward from the opening a toward the first limiting hook 2, that is, from the second limiting hook 3 toward the first limiting hook 2, and the groove depth of the inclined groove 12 is obliquely upward from low to high.

In this embodiment, the inclined groove 12 is mainly used for reserving and positioning the battery cover plate, so as to prevent the battery cover plate from moving before being clamped. Therefore, through the arrangement of the inclined groove 12, when the opening A is in an open state, the battery cover plate is placed in the inclined groove 12 to be abutted with the groove bottom for reservation and fixation, and the battery cover plate is prevented from moving left and right before clamping, so that the battery cover plate is positioned; when the opening A is in a clamping state, the second limiting hook claw 3 drives the battery cover plate to be in inclined butt joint with the first limiting hook claw 2 along the inclined groove 12 from low to high so as to limit the movement of the battery cover plate in the up-down direction. Therefore, through the clamping mode that the inclination is upward from low to high, the battery cover plate is deeply sunk in the inclined groove 12 and then is clamped along the inclined groove 12, so that the battery cover plates with various sizes can be clamped in an adaptive mode, the first limiting hook claw 2 and the second limiting hook claw 3 are strong in practicability, the application range is wider, and frequent updating of the clamp is avoided.

In this embodiment, if the inclined groove 12 is not provided, various defects are brought about, firstly, it cannot be ensured that the clamping head part B can accurately clamp the battery cover plate in a descending manner after the battery cover plate is placed on the clamp main body 1, and the battery cover plate is easy to move when a false touch occurs, so that a tensile force test is affected; secondly, when the battery cover plate is horizontally placed on the clamp body 1, the height of the battery cover plate is higher than that of the first limiting hook 2 and the second limiting hook 3, so that the hooks of the two can not hook the battery cover plate, namely, the upward constraint of the battery cover plate can not be realized, and the application range is small.

In this embodiment, a guiding opening 13 is provided on the clamp body 1, and the second limiting hook 3 can realize the function of sliding back and forth relative to the first limiting hook 2 through the guiding opening 13, so as to ensure that the second limiting hook 3 does not deviate or incline when sliding.

In this embodiment, the second limiting hook 3 includes a sliding rod 31, and the second limiting hook 3 is slidably disposed on the sliding rail 11 through the sliding rod 31 to realize movement. The end of the sliding rod 31 is provided with a limiting pin 311 to limit the sliding travel of the second limiting hook 3 relative to the first limiting hook 2, so as to prevent the second limiting hook 3 from falling off directly from the clamp body 1 in the sliding process.

In this embodiment, the fixture further comprises a fixture base 4, and the fixture body 1 is fixedly arranged on the fixture base 4.

In this embodiment, the adjusting through hole 10 is provided on the clamp body 1, so that when the clamp body 1 is fixed on the clamp base 4, the relative position between the clamp body 1 and the clamp base 4 is adjusted by the adjusting through hole 10, the position of the clamp body 1 can be adjusted relative to the clamp base 4, and the opening a can correspond to the chuck portion B.

The working principle and the use flow of the embodiment of the utility model are as follows:

the mounting of the jig portion is performed:

firstly, the second limit hook 3 is arranged on the sliding rail 11 of the clamp body 1 in a sliding way through the sliding rod 31, and a limit pin 311 is inserted at the tail end of the sliding rail 11; then, placing the clamp body 1 on the clamp base 4, and adjusting the position of the clamp body 1 relative to the clamp base 4; after the position of the clamp main body 1 is determined, the clamp main body and the clamp main body are fixed through the bolts penetrating through the adjusting through holes 10, so that the opening A can correspond to the clamping head part B, and the clamping head part B can clamp the battery cover plate after descending.

When working, the following steps are carried out:

first, referring to fig. 4, the second limiting hook 3 is controlled to slide relative to the first limiting hook 2, so that the opening a is in an open state; then, referring to fig. 5, the battery cover plate is placed in the inclined groove 12 of the clamp body 1, and is positioned to prevent displacement; next, referring to fig. 6, the second limiting hook 3 is controlled to slide relative to the first limiting hook 2, so that the opening a is in a clamping state, that is, the second limiting hook 3 drives the battery cover plate to be in inclined contact with the first limiting hook 2 from low to high along the inclined groove 12, and the movement of the battery cover plate in the up-down direction is limited; finally, referring to fig. 6 and 7, the clamping head portion B is controlled to clamp the connecting sheet vertically tilted on the battery cover plate in a descending manner, and the clamping head portion B can clamp the connecting sheet on the battery cover plate to dial upwards for tensile testing. According to the utility model, the acting force applied to the battery cover plate can be always in the center of the battery cover plate during tensile test, so that the deformation of a product caused by the inclination and bending phenomena of the battery cover plate is prevented, the smooth performance of the tensile test of the battery cover plate is ensured, the stability of the tensile test is more firm, the quality of the product is ensured, and the additional expenditure risk is reduced.

In other embodiments, a sand polishing layer is disposed on the sliding rod 31 to ensure that the second limiting hook 3 slides relative to the first limiting hook 2, so that when the opening a is kept in a clamping state or an opening state, the sliding rod 31 will not slide by itself due to erroneous touch, i.e. the sliding rod 31 has a certain friction relative to the clamp body 1, and the sliding rod 31 is prevented from displacing by itself.

In other embodiments, the first limiting hook 2 and the clamp body 1 are of a split structure, so that the first limiting hook 2 with different specifications and sizes can be automatically replaced, more battery cover plates with different specifications and sizes can be adapted, and later disassembly and assembly are more convenient.

The foregoing description of the embodiments and description is presented to illustrate the scope of the utility model, but is not to be construed as limiting the scope of the utility model. Modifications, equivalents, and other improvements to the embodiments of the utility model or portions of the features disclosed herein, as may occur to persons skilled in the art upon use of the utility model or the teachings of the embodiments, are intended to be included within the scope of the utility model, as may be desired by persons skilled in the art from a logical analysis, reasoning, or limited testing, in combination with the common general knowledge and/or knowledge of the prior art.

Claims (9)

1. The tension test clamp for the battery cover plate is characterized by comprising a clamp main body, a first limiting hook and a second limiting hook;

the first limiting hook claw is fixedly arranged on the clamp main body, and a sliding rail for sliding the second limiting hook claw is arranged on the clamp main body in a penetrating manner; an opening for the battery cover plate to go in and out is formed between the first limiting hook and the second limiting hook, and the second limiting hook slides back and forth relative to the first limiting hook, so that the opening has a clamping state and an opening state;

the clamp body is concavely provided with an inclined groove, and when the opening is in an open state, the battery cover plate enters the opening and is placed in the inclined groove to be abutted with the bottom of the groove; when the opening is in a clamping state, the second limiting hook claw drives the battery cover plate to be obliquely abutted on the first limiting hook claw along the inclined groove so as to limit the movement of the battery cover plate in the up-down direction.

2. A tensile testing fixture for a battery cover plate as defined in claim 1, wherein: the bottom of the inclined groove is obliquely upwards arranged from the opening to the first limit hook claw.

3. A tensile testing fixture for a battery cover plate as defined in claim 1, wherein: the clamp body is provided with a guide opening, and the second limiting hook claw slides back and forth relative to the first limiting hook claw through the guide opening.

4. A tensile testing fixture for a battery cover plate as defined in claim 1, wherein: the second limiting hook claw is provided with a sliding rod, and the second limiting hook claw is arranged on the sliding rail in a sliding way through the sliding rod.

5. The tensile testing fixture for a battery cover plate as set forth in claim 4, wherein: the sliding rod is provided with a limiting pin so as to limit the sliding travel of the second limiting hook relative to the first limiting hook.

6. The tensile testing fixture for a battery cover plate as set forth in claim 4, wherein: the sliding rod is provided with a sand grinding layer.

7. A tensile testing fixture for a battery cover plate as defined in claim 1, wherein: the clamp comprises a clamp base, and is characterized by further comprising a clamp main body fixedly arranged on the clamp base.

8. The tensile testing fixture for a battery cover plate of claim 7, wherein: the clamp body is provided with an adjusting through hole, and when the clamp body is fixedly arranged on the clamp base, the relative position between the clamp body and the clamp base is adjusted through the adjusting through hole.

9. A tensile testing fixture for a battery cover plate as defined in any one of claims 1-8, wherein: the first limiting hook claw and the clamp main body are of a split type structure.