Sample preparation device for adhesive compression sample

Abstract

The utility model belongs to the technical field of adhesive sample preparation, and discloses a sample preparation device for an adhesive compression sample. The sample preparation device for the adhesive compression sample comprises a base and at least two groove blocks, wherein a plurality of bulges are arranged on the base; the groove blocks are detachably connected with the base, and the at least two groove blocks are adjacently arranged on the base; in every two adjacent groove blocks, a plurality of through grooves are correspondingly formed in the two adjacent side walls respectively, the inner walls of every two correspondingly-arranged through grooves abut against the outsides of the protrusions, and the inner walls of every two correspondingly-arranged through grooves and the protrusions define a containing cavity which is used for containing an adhesive to form an adhesive compression sample. During installation, at least two groove blocks are adjacently arranged on the base according to the positions of the protrusions, and the protrusions play a role in positioning, so that installation is convenient. In the process of injecting glue into the containing cavity, the inner walls of the two correspondingly-arranged through grooves abut against the outsides of the protrusions, and the glue can be prevented from leaking. After the adhesive is cured to form the compression sample, the groove block is disassembled, so that the disassembly is convenient, and the compression sample is convenient to take out.

Description

Technical Field

[0001] The utility model relates to the technical field of adhesive sample preparation, in particular to a sample preparation device for adhesive compression test specimens. Background Art

[0002] Adhesives are widely used in the aviation industry, such as electronic components, honeycomb sandwich structures, luggage compartments, passenger cabins, etc. Adhesives are used for bonding. Especially in the application of aviation honeycomb cores, adhesives are often used as potting materials to improve the overall strength and sealing of aircraft structures. Compared with welding and mechanical connection methods, the use of adhesives for bonding has the advantages of reducing structural weight, uniform stress distribution at the joints, improving connection strength, connecting various materials, flexible adjustability, simple process, good sealing, corrosion resistance, electrical insulation, water resistance and other good comprehensive properties.

[0003] The compression performance of adhesives is one of the important indicators to measure the pressure resistance of adhesives. According to the requirements of technical specifications, each OEM must test the compression performance of adhesives according to the purchasing specifications or technical requirements after purchasing adhesives into the factory. The existing sample preparation device for testing adhesive compression specimens includes a mounting frame and a sample mold for placing adhesives. The upper end of the sample mold is provided with a glue injection opening, the lower end is provided with an exhaust hole, and a ejector pin is provided below the exhaust hole. The bottom of the ejector pin is installed on a movable plate. Glue is injected into the sample mold through the glue injection opening. After the sample in the sample mold is cured, the ejector pin is driven to move toward the exhaust hole through the movable plate to eject the sample out of the glue injection opening. It is inconvenient to remove the sample only by applying force from the bottom of the sample, and adhesive leakage is likely to occur during the process of injecting glue into the sample mold. Utility Model Content

[0004] The utility model aims to provide a sample preparation device for adhesive compression samples, which is easy to install, can prevent adhesive leakage during the process of injecting glue into the accommodating cavity, and is convenient for taking out the sample.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A sample preparation device for an adhesive compression sample, comprising:

[0007] A base, wherein a plurality of protrusions are provided on the base;

[0008] At least two slot blocks are detachably connected to the base, and at least two slot blocks are adjacently arranged on the base; in two adjacent slot blocks, two adjacent side walls are respectively provided with a plurality of through slots, and the inner walls of the two corresponding through slots are pressed against the outside of the protrusion and enclosed with the protrusion to form a receiving cavity for receiving adhesive to form an adhesive compression sample.

[0009] Preferably, the sample preparation device for the adhesive compression specimen further comprises a connecting assembly, the slot block is provided with a first connecting hole, the base is provided with a second connecting hole, and the connecting assembly connects the base and the slot block through the first connecting hole and the second connecting hole.

[0010] Preferably, the connecting assembly includes a bolt and a nut, the first connecting hole and the second connecting hole are both through holes, the bolt passes through the first connecting hole and the second connecting hole and is threadedly connected to the nut; or, the connecting assembly includes a clamping rod and a buckle, the first connecting hole and the second connecting hole are both through holes, the clamping rod passes through the first connecting hole and the second connecting hole and is buckled with the buckle.

[0011] Preferably, a groove is provided on the base, and the plurality of protrusions are arranged in the groove, and at least two groove blocks can be inserted into the groove and pressed against each other.

[0012] Preferably, at least two of the slot blocks are arranged adjacent to each other in sequence along the same direction on the base.

[0013] Preferably, in two adjacent slot blocks, two adjacent side walls are both planes.

[0014] Preferably, the structure of the slot block is a rectangular parallelepiped structure, and a plurality of the through slots are arranged on the slot block at equal intervals.

[0015] Preferably, the cavity structure of the accommodating cavity follows the shape of the adhesive compression specimen.

[0016] Preferably, the base and the slot block are both made of polytetrafluoroethylene.

[0017] Preferably, a hand-held portion is provided on the periphery of the base.

[0018] Beneficial effects of the utility model:

[0019] The sample preparation device for adhesive compression specimen provided by the utility model includes a base and at least two slot blocks, and a plurality of protrusions are provided on the base; the slot blocks are detachably connected to the base, and at least two slot blocks are adjacently arranged on the base; in two adjacent slot blocks, a plurality of through grooves are respectively correspondingly provided on two adjacent side walls, and the inner walls of the two corresponding through grooves are pressed against the outside of the protrusions, and are surrounded by the protrusions to form a receiving cavity for receiving the adhesive to form the adhesive compression specimen. During installation, at least two slot blocks are adjacently arranged on the base according to the position of the protrusions, and the plurality of protrusions play a positioning role, making the installation convenient. In the process of injecting glue into the receiving cavity, the inner walls of the two corresponding through grooves are pressed against the outside of the protrusions to prevent the adhesive from leaking. After the adhesive is solidified to form the compression specimen, the slot blocks are disassembled, and the disassembly is convenient, so that the compression specimen can be taken out. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a sample preparation device for adhesive compression samples provided by the utility model;

[0021] Figure 2 It is a partial structural schematic diagram of a sample preparation device for adhesive compression samples provided by the utility model;

[0022] Figure 3 It is an exploded view of a sample preparation device for an adhesive compression sample provided by the utility model;

[0023] Figure 4 It is a structural schematic diagram of a base involved in the utility model.

[0024] In the figure:

[0025] 1. base; 11. protrusion; 12. second connection hole;

[0026] 2. slot block; 21. through slot; 22. first connecting hole;

[0027] 3. Accommodating cavity. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0029] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0032] like Figures 1 to 4 As shown, the utility model provides a sample preparation device for adhesive compression specimens, which has a simple structure, is easy to process, and is easy to operate, ensuring smooth injection of adhesive and removal of adhesive compression specimens. The sample preparation device for adhesive compression specimens includes a base 1 and at least two slot blocks 2, and the base 1 is provided with a plurality of protrusions 11; the slot blocks 2 are detachably connected to the base 1, and at least two slot blocks 2 are adjacently arranged on the base 1; in two adjacent slot blocks 2, a plurality of through grooves 21 are respectively correspondingly arranged on two adjacent side walls, and the inner walls of the two corresponding through grooves 21 are pressed against the outside of the protrusion 11, and are surrounded by the protrusion 11 to form a receiving chamber 3 for accommodating adhesive to form an adhesive compression specimen. During installation, at least two slot blocks 2 are adjacently arranged on the base 1 according to the position of the protrusion 11, so that installation is convenient. In the process of injecting glue into the receiving chamber 3, the inner walls of the two corresponding through grooves 21 are pressed against the outside of the protrusion 11 to prevent leakage of the adhesive. After the adhesive is cured to form a compression sample, the slot block 2 is disassembled, which is convenient for taking out the compression sample. The accommodating cavity 3 is formed by two corresponding through grooves 21 and the protrusion 11. Compared with the prior art of directly processing annular grooves on a plate of a certain thickness, the processing is simple, and only the through groove 21 needs to be processed on the slot block 2.

[0033] Optionally, the sample preparation device for the adhesive compression specimen also includes a connecting component, a first connecting hole 22 is provided on the slot block 2, and a second connecting hole 12 is provided on the base 1. The connecting component connects the base 1 and the slot block 2 through the first connecting hole 22 and the second connecting hole 12. The structure is simple and easy to disassemble.

[0034] Optionally, in this embodiment, the connection assembly includes a bolt and a nut, the first connection hole 22 and the second connection hole 12 are both through holes, the bolt passes through the first connection hole 22 and the second connection hole 12 and is threadedly connected to the nut, so that the processing is simple and the installation is convenient. Optionally, in other embodiments, the connection assembly includes a clamping rod and a buckle, the first connection hole 22 and the second connection hole 12 are both through holes, the clamping rod passes through the first connection hole 22 and the second connection hole 12 and is buckled with the buckle, and the structure is relatively simple; or the connection assembly includes a screw, the first connection hole 22 is a through hole, the second connection hole 12 is an internal threaded hole, the screw passes through the first connection hole 22 and is threadedly connected to the second connection hole 12, as long as the base 1 and the slot block 2 can be connected, it is not limited to this embodiment.

[0035] Optionally, in other embodiments, a groove is provided on the base 1, and the plurality of protrusions 11 are arranged in the groove, and at least two groove blocks 2 can be inserted into the groove and pressed against each other. During installation, at least two groove blocks 2 are inserted into the groove and pressed against each other according to the position of the protrusions 11, which has a simple structure and is easy to install.

[0036] Optionally, at least two slot blocks 2 are arranged adjacent to each other in the same direction on the base 1. When processing the protrusion 11 of the base 1, the processing is simple, and when installing the slot blocks 2, the installation is also convenient. Specifically, in this embodiment, if Figure 1 As shown, there are three slot blocks 2, and the three slot blocks 2 are arranged adjacently in the same direction on the base 1 in sequence to save costs. Optionally, in other embodiments, at least two slot blocks 2 are arranged adjacently in different directions on the base 1. For example, one of the slot blocks 2 is provided with a plurality of through slots 21 along the circumferential direction, and the other slot blocks 2 are arranged around the slot block 2 provided with a plurality of through slots 21 along the circumferential direction.

[0037] Optionally, in this embodiment, in two adjacent slot blocks 2, the two adjacent side walls are both planes for easy processing. Optionally, in other embodiments, in two adjacent slot blocks 2, the two adjacent side walls may be curved or irregularly shaped, and the shape of one side wall matches the shape of the other side wall to achieve the fit between the two adjacent slot blocks 2. For the convenience of processing, optionally, in this embodiment, the structure of the slot block 2 is a rectangular parallelepiped structure, and a plurality of through slots 21 are arranged on the slot block 2 at equal intervals.

[0038] Optionally, the cavity structure of the accommodating cavity 3 is shaped like the adhesive compression sample. Optionally, in the present embodiment, the cavity structure of the accommodating cavity 3 is a rectangular parallelepiped structure, and the size of the cavity structure of the accommodating cavity 3 is the standard size of the sample. After the sample is cured, it only needs to be lightly polished and can be directly used for testing, which can achieve the effect of saving material usage. Furthermore, in the present embodiment, in two adjacent slot blocks 2, the groove depth of the through groove 21 on one side wall is the same as the groove depth of the through groove 21 on the other side wall, that is, the two through grooves 21 have the same shape, which is convenient for processing. In other embodiments, the groove depth of the through groove 21 on one side wall may be different from the groove depth of the through groove 21 on the other side wall.

[0039] Optionally, in this embodiment, the base 1 and the slot block 2 are both made of polytetrafluoroethylene, which facilitates demoulding after the adhesive is cured.

[0040] Optionally, a hand-held part is provided on the periphery of the base 1. After injecting the adhesive into the accommodating cavity 3, the operator vibrates the entire adhesive compression sample preparation device through the hand-held part to facilitate the discharge of the gas inside the adhesive.

[0041] like Figures 1 to 3 As shown, when using a sample preparation device for compressing the sample with adhesive:

[0042] Step 1: According to the position of the protrusion 11, three slot blocks 2 are positioned and placed on the base 1 in sequence along the width direction of the bottom plate;

[0043] Step 2: Pass the bolt through the first connection hole 22 and the second connection hole 12 and thread the bolt into the nut;

[0044] Step 3: After assembly, place it on the test bench, inject the mixed adhesive into the accommodating chamber 3 with a syringe or directly, fill the cavity of the accommodating chamber 3, and exhaust it by vibration or extrusion.

[0045] Step 4: placing the sample preparation device of the adhesive compression sample injected with glue under a specific environment to cure the adhesive;

[0046] Step 5: After curing is completed, remove the bolts, separate each slot block 2 from the base 1, take out the adhesive compression sample, and lightly polish it with sandpaper to keep all surfaces of the adhesive compression sample smooth. The sample preparation is completed.

[0047] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A sample preparation device for adhesive compression specimens, characterized in that: include: A base (1), wherein a plurality of protrusions (11) are provided on the base (1); At least two slot blocks (2) are provided, wherein the slot blocks (2) are detachably connected to the base (1), and at least two slot blocks (2) are adjacently arranged on the base (1); in two adjacent slot blocks (2), two adjacent side walls are respectively provided with a plurality of through slots (21), and the inner walls of the two correspondingly arranged through slots (21) are pressed against the outside of the protrusion (11), and are enclosed with the protrusion (11) to form a receiving cavity (3) for receiving an adhesive to form an adhesive compression sample.

2. The adhesive compression specimen preparation device according to claim 1, characterized in that: The adhesive compression specimen preparation device further comprises a connecting assembly, wherein the slot block (2) is provided with a first connecting hole (22), the base (1) is provided with a second connecting hole (12), and the connecting assembly passes through the first connecting hole (22) and the second connecting hole (12) to connect the base (1) and the slot block (2).

3. The adhesive compression specimen preparation device according to claim 2, characterized in that: The connecting assembly comprises a bolt and a nut, the first connecting hole (22) and the second connecting hole (12) are both through holes, the bolt passes through the first connecting hole (22) and the second connecting hole (12) and is threadedly connected to the nut; or, the connecting assembly comprises a clamping rod and a buckle, the first connecting hole (22) and the second connecting hole (12) are both through holes, the clamping rod passes through the first connecting hole (22) and the second connecting hole (12) and is buckled with the buckle.

4. The adhesive compression specimen preparation device according to claim 1, characterized in that: The base (1) is provided with a groove, and the plurality of protrusions (11) are arranged in the groove. At least two groove blocks (2) can be inserted into the groove and pressed against each other.

5. The adhesive compression specimen preparation device according to claim 1, characterized in that: At least two of the slot blocks (2) are arranged adjacent to each other in sequence on the base (1) along the same direction.

6. The adhesive compression specimen preparation device according to claim 1, characterized in that: In two adjacent slot blocks (2), two adjacent side walls are both planes.

7. The adhesive compression specimen preparation device according to claim 6, characterized in that: The structure of the slot block (2) is a rectangular parallelepiped structure, and a plurality of through slots (21) are arranged at equal intervals on the slot block (2).

8. The adhesive compression specimen preparation device according to any one of claims 1 to 7, characterized in that: The cavity structure of the accommodating cavity (3) follows the shape of the adhesive compression sample.

9. The adhesive compression specimen preparation device according to any one of claims 1 to 7, characterized in that: The base (1) and the slot block (2) are both made of polytetrafluoroethylene.

10. The adhesive compression specimen preparation device according to any one of claims 1 to 7, characterized in that: A hand-held portion is provided on the periphery of the base (1).

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