CN219084520U - Sample preparation device for adhesive tensile shear strength test - Google Patents

Abstract

The utility model relates to a sample preparation device for testing tensile shear strength of an adhesive, which comprises two test pieces, wherein the two test pieces are respectively provided with an adhesive area for coating the adhesive, the sample preparation device comprises a base, an alignment unit and a compression unit, a left supporting surface and a right supporting surface are formed on the base, the left supporting surface and the right supporting surface are staggered in the vertical direction, and the height difference between the left supporting surface and the right supporting surface is equal to the thickness of the adhesive on the sample; the alignment unit comprises a leaning gate and a pushing component which are respectively arranged at the front side and the rear side of the base; the compressing unit comprises a compressing module which is vertically movably arranged above the base, and two test pieces are respectively horizontally arranged on the left supporting surface and the right supporting surface during sample preparation. According to the utility model, through the cooperation of the leaning gate and the pushing component, the alignment precision of the two test pieces is improved, and the deviation of the bonding area between the two test pieces is effectively reduced; meanwhile, uniformity of bonding thickness is effectively guaranteed, and therefore testing accuracy is improved.

Description

Sample preparation device for adhesive tensile shear strength test

Technical Field

The utility model belongs to the field of sample preparation equipment, and particularly relates to a sample preparation device for testing tensile shear strength of an adhesive.

Background

At present, in a sample manufacturing method adopted in an adhesive tensile shear strength test (metal-to-metal), generally, two rigid test pieces are prepared, an adhesive is coated on a bonding area of each test piece according to a bonding area to be detected, and then the two test pieces are laminated and bonded from the bonding area, so that the manufacturing of one sample can be completed.

However, in the actual sample preparation process, the operations of gluing, bonding and the like are generally completed manually by a tester, and the alignment precision between two test pieces is poor, so that the error between the actual bonding area and the set bonding area is large; and the adhesive at the bonding position between two test pieces is unevenly distributed, so that the bonding thickness is uneven, and the test result deviation is large, so that a sample preparation device capable of ensuring accurate alignment between the two test pieces and guaranteeing even adhesive distribution at the bonding position needs to be designed.

Disclosure of Invention

The utility model aims to solve the technical problem of overcoming the defects of the prior art and providing a brand-new sample preparation device for testing the tensile shear strength of an adhesive.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the sample preparation device for testing tensile shear strength of the adhesive comprises two test pieces, wherein the two test pieces are respectively provided with a bonding area for coating the adhesive, the sample preparation device is used for laminating and bonding the two test pieces up and down from the bonding area, the sample preparation device comprises a base, an alignment unit and a compression unit, a left supporting surface and a right supporting surface which are arranged left and right are formed on the base, the left supporting surface and the right supporting surface are staggered in the vertical direction, and the height difference between the left supporting surface and the right supporting surface is equal to the thickness of the adhesive on the sample; the alignment unit comprises a leaning gate and a pushing component which are respectively arranged at the front side and the rear side of the base; the compaction unit comprises a compaction module which is movably arranged above the base up and down, when a sample is prepared, two test pieces are respectively flatly placed on the left supporting surface and the right supporting surface, the pushing component is used for correspondingly leaning the two test pieces against the leaning grid from the side edge, and the compaction module is used for flatly pressing down the test piece positioned on the upper layer in the two test pieces.

Preferably, the left supporting surface and the right supporting surface are arranged at intervals in the left-right direction, a reserved groove is formed in the base and located between the left supporting surface and the right supporting surface, and when two test pieces are respectively laid on the left supporting surface and the right supporting surface, the bonding area is aligned with the reserved groove up and down. When the device is arranged in such a way, redundant adhesive in the bonding area overflows and can flow into the reserved groove during compaction, so that the sample preparation is convenient to clean after completion.

Specifically, the base includes left pedestal and right pedestal that side by side interval set up about, wherein forms left holding surface and right holding surface from the top surface respectively on left pedestal and the right pedestal, forms the reservation groove between left pedestal and the right pedestal.

Further, the inner surface of the pre-groove is coated with vaseline or automotive wax. The arrangement prevents the adhesive from adhering to the inner wall of the reserved groove, so that the cleaning is easier.

Preferably, the base further comprises a guide rail extending leftwards and rightwards, and the left base and/or the right base are/is connected to the guide rail in a sliding manner. The size of the reserved groove can be adjusted through the movement of the left seat body or the right seat body, so that the device can be suitable for manufacturing test pieces with different bonding areas, and is simple and convenient to operate.

Preferably, the right seat body comprises a first split body and a second split body detachably arranged at the top of the first split body, wherein the top surface of the first split body is flush with the top surface of the left seat body, and the top surface of the second split body is a right supporting surface. The second split can adopt gaskets with different thickness, so that the manufacturing of test pieces with different bonding thicknesses can be applicable only by replacing gaskets with different thicknesses, and the operation is simple and convenient.

Preferably, the pushing components are in two groups and are in one-to-one correspondence with the left supporting surface and the right supporting surface. In this way, two test pieces are sequentially abutted against the abutting grid, and alignment accuracy is improved.

Preferably, the pushing component comprises a first fixing seat fixedly connected with the front side of the base, a pushing module movably connected on the first fixing seat in the front-back direction, and a first operating piece arranged on the first fixing seat and used for driving the pushing module; and/or the leaning gate is fixedly connected to the rear side of the base.

Preferably, the compression unit further comprises a second fixing seat fixed on the top of the backrest, and a second operating member arranged on the second fixing seat and used for driving the compression module.

In addition, during sample preparation, the center of the compaction module is aligned with the center of the upper test piece. When the adhesive is pressed, the final thickness is not affected by micro-expansion generated in the curing process of the adhesive.

Due to the implementation of the technical scheme, compared with the prior art, the utility model has the following advantages:

according to the utility model, through the cooperation of the leaning gate and the pushing component, the two test pieces are aligned in the left-right direction, so that the alignment precision of the two test pieces is improved, and the deviation of the bonding area between the two test pieces is effectively reduced; meanwhile, the upper test piece is driven to be pressed down smoothly through the pressing module, so that the adhesive between the two test pieces is uniformly distributed, the uniformity of the bonding thickness is effectively ensured, and the testing precision is improved.

Drawings

The utility model will now be described in further detail with reference to the drawings and to specific examples.

FIG. 1 is a schematic view of a test piece according to the present utility model;

FIG. 2 is a schematic perspective view of a sample preparation device for testing tensile shear strength of an adhesive according to the present utility model;

FIG. 3 is a schematic front view of FIG. 2;

wherein Y, sample; y0 and test piece; q, bonding area;

1. a base; 11. a left seat body; 12. a right seat body; 121. a first split; 122. a second split; m1, a left supporting surface; m2, right support surface; c. a reserved groove; 13. a guide rail;

2. an alignment unit; 20. a leaning gate; 21. a pushing component; 211. a first fixing seat; 212. pushing the module; 213. a first operating member;

3. a compressing unit; 31. a compaction module; 32. the second fixing seat; 33. and a second operating member.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature. It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

As shown in fig. 1, the sample Y includes two rigid test pieces Y0, wherein the two test pieces Y0 are each formed with an adhesion region q for applying an adhesive, and wherein the thickness of the adhesive on the sample Y is h1.

As shown in fig. 2 and 3, the sample preparation device for testing tensile shear strength of an adhesive in this embodiment includes a base 1, an alignment unit 2, and a compression unit 3.

Specifically, the base 1 includes a left base 11 and a right base 12 that are arranged side by side at intervals, where the left base 11 and the right base 12 form a left supporting surface m1 and a right supporting surface m2 from top surfaces respectively. The left supporting surface m1 and the right supporting surface m2 are arranged at intervals in the left-right direction, the left supporting surface m1 and the right supporting surface m2 are arranged in a staggered mode in the vertical direction, and the height difference between the left supporting surface m1 and the right supporting surface m2 is h2, and h1=h2. In the sample preparation, two test pieces Y0 are respectively laid on the left support surface m1 and the right support surface m2, and in this embodiment, the height of the right support surface m2 is higher than that of the left support surface m1.

Meanwhile, a reserved groove c is formed between the left seat body 11 and the right seat body 12 and is positioned between the left supporting surface m1 and the right supporting surface m2, and when two test pieces Y are respectively horizontally placed on the left supporting surface m1 and the right supporting surface m2, the bonding area q is aligned with the reserved groove c up and down. When the device is arranged in such a way, redundant adhesive in the bonding area overflows and can flow into the reserved groove during compaction, so that the sample preparation is convenient to clean after completion.

In order to further facilitate the cleaning of overflowed adhesive, the inner surface of the reserved groove c is also coated with grease paint such as vaseline or automotive wax. The arrangement prevents the adhesive from adhering to the inner wall of the reserved groove, so that the cleaning is easier.

In this example, the right seat 12 includes a first split 121 and a second split 122 detachably disposed on top of the first split 121, where a top surface of the first split 121 is flush with a top surface of the left seat 11, and a top surface of the second split 122 is a right supporting surface m2. The second split can adopt gaskets with different thickness, so that the manufacturing of test pieces with different bonding thicknesses can be applicable only by replacing gaskets with different thicknesses, and the operation is simple and convenient.

Further, the first split 121 and the left base 11 are both rectangular sliding boards, the base 1 further includes a guide rail 13 extending horizontally along the left-right direction, and the first split 121 and the left base 11 are slidably connected to the guide rail 13, where the connection structure between the guide rail 13 and the first split 121 and the left base 11 can be various common connection structures, such as a sprocket connection structure (not shown, but not easily thinkable). The size of the reserved groove can be adjusted through the movement of the left seat body or the right seat body, so that the device can be suitable for manufacturing test pieces with different bonding areas, and is simple and convenient to operate.

In this example, the alignment unit 2 includes a back plate 20 fixedly connected to the rear side of the base 1, and a pushing component 21 fixedly connected to the front side of the base 1.

Specifically, the grids 20 extend in the vertical direction, and the grids 20 are two and are arranged in one-to-one correspondence with the left seat 11 and the right seat 12.

Specifically, the pushing components 21 have two groups and are in one-to-one correspondence with the left supporting surface m1 and the right supporting surface m2, where each group of pushing components 21 is used to support the corresponding test piece Y0 against the leaning grid 20 from the side. In this way, two test pieces are sequentially abutted against the abutting grid, and alignment accuracy is improved.

Each group of pushing components 21 comprises a first fixing seat 211 fixedly connected with the front side of the base 1, a pushing module 212 movably connected on the first fixing seat 211 in the front-back direction, and a first operating piece 213 arranged on the first fixing seat 211 and used for driving the pushing module 212. The first operating member 213 may be a bolt member, and a matching bolt hole is formed in the first fixing base 211, and the bolt member passes through the bolt hole and is connected to the pushing module 212.

In this example, the pressing unit 3 includes a pressing module 31 movably disposed above the right seat 12, a second fixing base 32 fixed on the top of the corresponding backrest 20, and a second operating member 33 disposed on the second fixing base 32 and used for driving the pressing module 31. The second operating member 33 may be a bolt member, and the second fixing base 32 is provided with a matching bolt hole, and the bolt member passes through the bolt hole from top to bottom and is connected to the compression module 31.

That is, in preparing the sample, the pressing module 31 is used for pressing the upper test piece Y0 of the two test pieces Y0 flat, and the center of the pressing module 31 is aligned with the center of the upper test piece Y0. When the adhesive is pressed, the final thickness is not affected by micro-expansion generated in the curing process of the adhesive.

In order to further secure the stability of the test piece Y0 located on the left side, a set of pressing units 3 is added above the left seat 11, and the structure and embodiment thereof are the same as those of the pressing units 3 located on the right side.

In summary, the implementation procedure of this embodiment is as follows:

s1, coating an adhesive on an adhesion area of two test pieces Y0;

s2, one test piece Y0 is horizontally placed on the left seat body 11, so that the bonding area of the test piece Y0 is aligned with the reserved groove c up and down, and the test piece Y0 is positioned in the horizontal direction and the up and down direction through the corresponding pushing module 212 and the compaction module 31;

s3, selecting a corresponding gasket according to the thickness of the test adhesive, placing the gasket on the first split 121, and placing the other test piece Y0 on the first split 121 horizontally so that the bonding area of the test piece Y0 is aligned with the reserved groove c vertically;

s4, driving the right pressing module 31 to press the test piece Y0 positioned on the upper layer, giving a certain pressure to overflow the redundant adhesive, and simultaneously driving the right pushing module 212 to accurately align the two test pieces and make the thickness of the adhesive uniform.

Therefore, the present embodiment has the following advantages:

1. by matching the leaning gate and the pushing component, the two test pieces are aligned in the left-right direction, the alignment precision of the two test pieces is improved, and the deviation of the bonding area between the two test pieces is effectively reduced; meanwhile, the upper test piece is driven to be pressed down flatly through the pressing module, so that the adhesive between the two test pieces is uniformly distributed, the uniformity of the bonding thickness is effectively ensured, and the testing precision is improved;

2. when in compaction, the redundant adhesive in the bonding area overflows and can flow into the reserved groove, so that the sample preparation is convenient to clean after the completion of the sample preparation;

3. through the removal of left pedestal or right pedestal in order to change the size of reservation groove, only need change the gasket of different thickness simultaneously, can realize the preparation of the test piece of different bonding thickness, different bonding area, easy operation, convenience.

The present utility model has been described in detail with the purpose of enabling those skilled in the art to understand the contents of the present utility model and to implement the same, but not to limit the scope of the present utility model, and all equivalent changes or modifications made according to the spirit of the present utility model should be included in the scope of the present utility model.

Claims (10)

1. The utility model provides a sample preparation device that adhesive tensile shear strength test was used, the sample includes two test pieces, wherein two test pieces are formed with the bonding area that is used for coating the adhesive respectively, sample preparation device is used for with two test pieces follow the bonding area stacks up and down and bonds, its characterized in that:

the sample preparation device comprises a base, an alignment unit and a compression unit, wherein a left supporting surface and a right supporting surface which are arranged left and right are formed on the base, the left supporting surface and the right supporting surface are staggered in the vertical direction, and the height difference between the left supporting surface and the right supporting surface is equal to the thickness of the adhesive on the sample; the alignment unit comprises a leaning gate and a pushing component which are respectively arranged at the front side and the rear side of the base; the pressing unit comprises a pressing module which is arranged above the base in an up-down movable mode, when a sample is prepared, the two test pieces are respectively flatly placed on the left supporting surface and the right supporting surface, the pushing component is used for correspondingly propping the two test pieces against the leaning grid from the side edges, and the pressing module is used for flatly pressing the test pieces positioned on the upper layer of the two test pieces.

2. The sample preparation device for adhesive tensile shear strength testing according to claim 1, wherein: the left support surface and the right support surface are arranged at intervals in the left-right direction, a reserved groove is formed in the base and located between the left support surface and the right support surface, and when the two test pieces are respectively flatly placed on the left support surface and the right support surface, the bonding area is vertically aligned with the reserved groove.

3. The sample preparation device for adhesive tensile shear strength testing according to claim 2, wherein: the base comprises a left base body and a right base body which are arranged at intervals side by side left and right, wherein the left base body and the right base body are respectively provided with a left supporting surface and a right supporting surface from top surfaces, and a reserved groove is formed between the left base body and the right base body.

4. A sample preparation device for adhesive tensile shear strength testing according to claim 2 or 3, wherein: the inner surface of the reserved groove is coated with vaseline or automotive wax.

5. A sample preparation device for adhesive tensile shear strength testing according to claim 3, wherein: the base also comprises a guide rail extending leftwards and rightwards, and the left base and/or the right base are/is connected to the guide rail in a sliding way.

6. A sample preparation device for adhesive tensile shear strength testing according to claim 3, wherein: the right seat body comprises a first split body and a second split body which is detachably arranged at the top of the first split body, wherein the top surface of the first split body is flush with the top surface of the left seat body, and the top surface of the second split body is the right supporting surface.

7. The sample preparation device for adhesive tensile shear strength testing according to claim 1, wherein: the pushing parts are in two groups and are in one-to-one correspondence with the left supporting surface and the right supporting surface.

8. The sample preparation device for adhesive tensile shear strength testing according to claim 1, wherein: the pushing component comprises a first fixing seat fixedly connected with the front side of the base, a pushing module movably connected on the first fixing seat in the front-back direction, and a first operating piece arranged on the first fixing seat and used for driving the pushing module; and/or the leaning gate is fixedly connected to the rear side of the base.

9. The sample preparation device for adhesive tensile shear strength testing according to claim 1, wherein: the compression unit further comprises a second fixing seat fixed at the top of the leaning gate and a second operating piece arranged on the second fixing seat and used for driving the compression module.

10. The sample preparation device for adhesive tensile shear strength testing according to claim 1, wherein: when in sample preparation, the center of the compaction module is aligned with the center of the test piece positioned on the upper layer.

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