CN216594418U - Device capable of preparing test samples for testing tensile shear strength of multiple groups of adhesives - Google Patents
Device capable of preparing test samples for testing tensile shear strength of multiple groups of adhesives Download PDFInfo
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- CN216594418U CN216594418U CN202122902256.XU CN202122902256U CN216594418U CN 216594418 U CN216594418 U CN 216594418U CN 202122902256 U CN202122902256 U CN 202122902256U CN 216594418 U CN216594418 U CN 216594418U
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- supporting plates
- shear strength
- tensile shear
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- 238000012360 testing method Methods 0.000 title claims abstract description 28
- 239000000853 adhesive Substances 0.000 title claims abstract description 22
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 22
- 238000003825 pressing Methods 0.000 claims abstract description 25
- 239000003292 glue Substances 0.000 claims abstract description 17
- 230000005484 gravity Effects 0.000 claims abstract description 4
- 238000004026 adhesive bonding Methods 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000002360 preparation method Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000012790 adhesive layer Substances 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000004005 microsphere Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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Abstract
The utility model discloses a device capable of preparing a plurality of groups of adhesive tensile shear strength test samples, which comprises a bottom plate, wherein two parallel supporting plates are fixedly arranged on the bottom plate, and a sample glue joint placing area is arranged between the supporting plates; a pressure groove is formed in each supporting plate, a threaded rod is arranged at a position opposite to the pressure groove, the bottom of the threaded rod is fixedly installed on the bottom plate, an adjusting unit is arranged at the upper part of the threaded rod, and the outer part of the adjusting unit is hinged with one end of the pressure rod; the adjusting unit is used for adjusting the height of a pressure rod, and the pressure rod is opposite to the pressure groove; a pressing plate is arranged in the pressing groove, and the pressing rod pushes the pressing plate to move freely along the pressing groove under the action of gravity; the pressure is applied uniformly to the sample in the glue area.
Description
Technical Field
The utility model belongs to the technical field of adhesive tensile shear strength tests, and particularly relates to a device capable of preparing a plurality of groups of adhesive tensile shear strength test samples.
Background
The adhesive tensile shear strength test is to apply a tensile force in the direction parallel to the bonding surface and along the main axis of a sample to measure the shear stress at the joint of the materials. The lap joint glue joint piece is economical and practical, and the test is the development, evaluation and comparative research on the glue and the bonding products, including the most extensive application form in the aspect of manufacturing quality control.
The samples can be prepared either as flat plates or as individual pieces. When different preparation modes are selected, considering that a sample can be damaged mechanically (including overheating) in machining, the conventional method for preparing the sample one by one is low in efficiency, time and labor are wasted, and the parallelism of the sample is difficult to ensure. Meanwhile, in order to control the uniform and consistent thickness of the adhesive layer, the standard generally recommends inserting an interval wire or a small glass microsphere into the thickness of the adhesive layer, but the standard does not consider that the sample is generally difficult to control the substrate to be tightly attached to the spacer under the condition that the glued joint is not stressed, so that the adhesive layer is often too thick, the quality of the sample depends on the operation level of a tester, and the accuracy of the test result is difficult to ensure.
Similar adhesive testing methods such as GB/T7124-2008 adhesive tensile shear strength measurement (rigid material to rigid material) and GB/T33334-2016 adhesive single lap tensile shear strength test method (composite material to composite material) strongly recommend that a clamp be used for accurately positioning an adhesive joint in the bonding process, but effective tool models are not provided by all standards. For guaranteeing the quality of the sample through analysis, the tool needs to control key parameters such as the thickness of a sample glue layer, the glue joint length and the parallelism of a base material, and can adjust the lap joint length of the glue layer so as to be suitable for different standard requirements. And also takes the space for the bonding operation in sample preparation into consideration.
SUMMERY OF THE UTILITY MODEL
In order to solve the not enough of existence among the prior art, this application has provided a device that can prepare the tensile shear strength test sample of multiunit adhesive, can evenly exert pressure to the district that splices to realize purposes such as control glue film thickness.
The technical scheme adopted by the utility model is as follows:
a device capable of preparing a plurality of groups of adhesive tensile shear strength test samples comprises a bottom plate, wherein two parallel supporting plates are fixedly arranged on the bottom plate, and a sample gluing and placing area is arranged between the supporting plates; a pressure groove is formed in each supporting plate, a threaded rod is arranged at a position opposite to the pressure groove, the bottom of the threaded rod is fixedly installed on the bottom plate, an adjusting unit is arranged at the upper part of the threaded rod, and the outer part of the adjusting unit is hinged with one end of the pressure rod; the adjusting unit is used for adjusting the height of the pressure rod, and the pressure rod is opposite to the pressure groove; a pressing plate is arranged in the pressing groove, and the pressing rod pushes the pressing plate to move freely along the pressing groove under the action of gravity; pressure is applied evenly to the sample in the glue area.
Furthermore, a C-shaped sliding block and an L-shaped baffle are respectively arranged at two ends between the supporting plates; the C-shaped sliding block is arranged between the supporting plates and freely moves along the inner walls of the supporting plates; the L-shaped baffles are fixedly arranged at the two ends of the two supporting plates and used for limiting the position of the C-shaped slide block; the L-shaped baffle plate is in threaded connection with a horizontally arranged limiting bolt, and the limiting bolt is adjusted to stretch into the two supporting plates to adjust the distance between the two C-shaped sliding blocks.
Furthermore, the adjusting unit is in a sleeve shape, is sleeved outside the threaded rod and is in threaded connection with the threaded rod
Furthermore, two main planes of the C-shaped sliding block are opposite, and two side edges of the C-shaped sliding block are respectively contacted with the inner walls of the two supporting plates.
Furthermore, the L-shaped baffle consists of a horizontal plate and a vertical plate and is in an L shape, the horizontal plate of the L-shaped baffle is fixedly connected with the bottom plate through fasteners such as screws, and the vertical plate of the L-shaped baffle abuts against the edges of the two supporting plates and is used for limiting the position of the C-shaped sliding block; the vertical plate of the L-shaped baffle is provided with a threaded hole, and a limit bolt is arranged in the threaded hole.
Furthermore, an observation groove is arranged on each supporting plate, and the observation groove is arranged beside the pressure groove, so that the condition of the sample can be conveniently observed.
Further, the pressing plate is a flat plate, and a spherical bulge is arranged on the upper surface of the pressing plate; the pressure is applied to the sample between the support plates by the pressure rod contacting with the spherical bulge of the pressure plate downwards along the pressure groove.
Furthermore, a plurality of scale grooves are formed in the pressure rod and used for hanging the weight.
The utility model has the beneficial effects that:
1. the device designed by the utility model can reduce the risk of human factors, and if the requirement on the operation proficiency of a tester is higher according to the traditional method, the sample is easy to slide in the gluing and curing process, so that the parallelism and the gluing area of the sample are influenced, the device has no requirement on the operation experience of the human, and the problems are avoided. The device designed by the utility model can prepare one or more groups of samples, improves the preparation efficiency, reduces the artificial instability factor, improves the sample preparation efficiency and reduces the cost.
2. The device designed by the utility model solves the problem that the glue joint area can not apply uniform pressure, realizes the purpose of controlling the thickness of the glue layer by adopting wires and the like in the standard, can ensure that the glue joint area is uniformly stressed, and can adjust the stress; meanwhile, multistage adjustability is achieved by matching with weights according to the lever principle, research requirements of applying different pressures are met, and the requirement of researchers for investigating the influence of the glue joint pressure on the glue joint performance is further met.
3. The device designed by the utility model has small volume under the condition of ensuring that a plurality of groups of samples are prepared, and is convenient to move for heating and curing. And meanwhile, the test bed is prevented from being polluted by residual glue.
4. The device designed by the utility model can ensure the size of a standard gluing area, and can also properly adjust the size of the gluing area according to the needs of testers; the sample can not slide in the curing process, and the sample parallelism is good. The device has the advantages of simple structure, portability, convenience in moving of the tool and the like.
Drawings
FIG. 1 is a schematic view of the overall structure of the device;
FIG. 2 is a front view of the apparatus;
FIG. 3 is a side view of the apparatus;
FIG. 4 is a partial structure diagram of the pressing rod and pressing plate of the device;
in the figure, the device comprises a base plate 1, a base plate 2, an L-shaped baffle plate 3, a C-shaped sliding block 4, a pressing plate 5, a pressing rod 6, a threaded rod 7, a supporting plate 8 and a limiting bolt.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
The device that can prepare tensile shear strength test sample of multiunit adhesive that this application designed is shown in fig. 1 and 2, including bottom plate 1, two backup pads 7 of fixed mounting on bottom plate 1, two backup pads 7 are parallel to each other, for the sample splice area of placing between the backup pad 7. In the preparation of the test specimens, a multilayer test specimen is placed between the two support plates 7. A pressure groove and an observation groove are arranged on each support plate 7, the pressure groove is arranged in the middle of each support plate 7, and the observation groove is arranged beside the pressure groove to facilitate observation of the condition of a sample; the observation groove may be provided in plurality. In the present embodiment, the bottom of the supporting plate 7 is welded to the upper surface of the bottom plate 1, but not limited to the above-mentioned connection manner, for example, a horizontal plate is welded to the bottom of the supporting plate 7, and the horizontal plate is fixedly connected to the bottom plate 1 by a fastener such as a screw.
A threaded rod 6 is arranged at the position opposite to the pressure groove, the bottom of the threaded rod 6 is fixedly arranged on the bottom plate 1, and an adjusting unit is arranged at the upper part of the threaded rod 6, is sleeve-shaped as shown in the figure and is in threaded connection with the threaded rod 6; the outer part of the adjusting unit is hinged with one end of a pressure lever 5, and the pressure lever 5 can freely rotate around the connecting part; the adjusting unit can adjust the height of the tool according to the number of the samples to be prepared, and the height of the height pressing rod 5 is controlled to match the total height of the samples. A plurality of scale grooves are formed in the pressure rod 5 and used for hanging weights; the pressure rod 5 falls into the pressure groove under the action of gravity of the weight; the cooperation of depression bar 5 and weight can provide suitable pressure for the region that splices, guarantees under the cooperation such as auxiliary conductor, and the substrate pastes tight accuse thick wire to realize the accurate control of glue film thickness.
As shown in fig. 4, a pressure plate 4 is further arranged in the pressure groove, and the pressure plate 4 can enable the sample to be stressed uniformly; the pressing plate 4 is arranged in the pressing groove and can move up and down along the pressing groove, the pressing plate 4 is a flat plate, and the upper surface of the pressing plate 4 is provided with a spherical bulge; the pressure bar 5 is contacted with the pressure plate 4 downwards along the pressure groove to apply certain pressure to the sample between the support plates 7.
In order to realize the adjustment of the position of the sample between the support plates 7, the C-shaped slide block 3 and the L-shaped baffle 2 are respectively arranged at two ends between the support plates 7, two main planes of the C-shaped slide block 3 are opposite, and two side edges of the C-shaped slide block 3 are respectively contacted with the inner walls of the two support plates 7; the two C-shaped slides 3 can be moved along the inner wall of the support plate 7. The L-shaped baffle 2 consists of a horizontal plate and a vertical plate and is in an L shape, the horizontal plate of the L-shaped baffle 2 is fixedly connected with the bottom plate 1 through fasteners such as screws, and the vertical plate of the L-shaped baffle 2 is abutted against the edges of the two supporting plates 7 and used for limiting the position of the C-shaped sliding block 3; open threaded hole on the vertical board of L type baffle 2, be equipped with stop bolt 8 in this threaded hole, stretch into the distance between two C type sliders 3 of regulation between two backup pads 7 through adjusting stop bolt 8, and then realize adjusting the position of sample between backup pad 7.
When in work: place the multiunit sample between two backup pads 7, adjust the C type slider 3 at both ends, guarantee that the sample can not slide and splice regional size. The height of the pressure lever 5 is adjusted according to the number of the samples, and a certain weight of weight or weight is hung on the pressure lever 5 to apply pressure to the gluing area. And (3) curing according to the curing requirement of the adhesive, removing the L-shaped baffle 2 after curing, and drawing out the sample from the side.
The above embodiments are only used for illustrating the design idea and features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the content of the present invention and implement the present invention accordingly, and the protection scope of the present invention is not limited to the above embodiments. Therefore, all equivalent changes and modifications made in accordance with the principles and concepts disclosed herein are intended to be included within the scope of the present invention.
Claims (8)
1. The device capable of preparing a plurality of groups of adhesive tensile shear strength test samples is characterized by comprising a bottom plate (1), wherein two parallel supporting plates (7) are fixedly arranged on the bottom plate (1), and a sample gluing and placing area is arranged between the supporting plates (7); a pressure groove is formed in each supporting plate (7), a threaded rod (6) is arranged at a position opposite to the pressure groove, the bottom of the threaded rod (6) is fixedly installed on the bottom plate (1), an adjusting unit is arranged on the upper portion of the threaded rod (6), and the outer portion of the adjusting unit is hinged to one end of the pressure rod (5); the adjusting unit is used for adjusting the height of the pressure lever (5), and the pressure lever (5) is opposite to the pressure groove; a pressure plate (4) is arranged in the pressure groove, and the pressure rod (5) pushes the pressure plate (4) to move freely along the pressure groove under the action of gravity; pressure is applied evenly to the sample in the glue area.
2. The device for preparing the test samples for the tensile shear strength of the multiple groups of adhesives according to claim 1, wherein a C-shaped sliding block (3) and an L-shaped baffle (2) are respectively arranged at two ends between the supporting plates (7); the C-shaped sliding block (3) is arranged between the supporting plates (7) and freely moves along the inner walls of the supporting plates (7); the L-shaped baffles (2) are fixedly arranged at two ends of the two supporting plates (7) and used for limiting the position of the C-shaped sliding block (3); the L-shaped baffle (2) is connected with a limit bolt (8) horizontally in a threaded manner, and the limit bolt (8) is adjusted to stretch into the space between the two supporting plates (7) to adjust the distance between the two C-shaped sliding blocks (3).
3. The device for preparing test samples for testing the tensile shear strength of multiple groups of adhesives as claimed in claim 1, wherein the adjusting unit is in the shape of a sleeve which is sleeved outside the threaded rod (6) and is in threaded connection with the threaded rod (6).
4. The device for preparing a plurality of groups of samples for testing the tensile shear strength of the adhesive according to claim 2, wherein two main planes of the C-shaped slide block (3) are opposite, and two side edges of the C-shaped slide block (3) are respectively contacted with the inner walls of the two supporting plates (7).
5. The device for preparing the test samples for the tensile shear strength of the multiple groups of adhesives is characterized in that the L-shaped baffle (2) consists of a horizontal plate and a vertical plate and is in an L shape, the horizontal plate of the L-shaped baffle (2) is fixedly connected with the bottom plate (1) through a fastener, and the vertical plate of the L-shaped baffle (2) abuts against the edges of the two supporting plates (7) and is used for limiting the position of the C-shaped sliding block (3); a threaded hole is formed in the vertical plate of the L-shaped baffle (2), and a limiting bolt (8) is arranged in the threaded hole.
6. The apparatus for preparing test samples for testing the tensile shear strength of adhesives according to any one of claims 1 to 5, wherein an observation groove is further provided on each supporting plate (7), and the observation groove is provided beside the pressing groove to facilitate observation of the test samples.
7. The device for preparing the test samples for the tensile shear strength of the multiple groups of adhesives according to claim 6, wherein the pressing plate (4) is a flat plate and the upper surface of the pressing plate (4) is provided with a spherical bulge; the pressure is applied to the sample between the supporting plates (7) by the pressure rod (5) which is contacted with the spherical bulge of the pressure plate (4) downwards along the pressure groove.
8. The device for preparing the test samples for the tensile shear strength of the multiple groups of adhesives as claimed in claim 6, wherein a plurality of scale grooves are formed on the compression bar (5) for suspending weights.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122902256.XU CN216594418U (en) | 2021-11-24 | 2021-11-24 | Device capable of preparing test samples for testing tensile shear strength of multiple groups of adhesives |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122902256.XU CN216594418U (en) | 2021-11-24 | 2021-11-24 | Device capable of preparing test samples for testing tensile shear strength of multiple groups of adhesives |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216594418U true CN216594418U (en) | 2022-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122902256.XU Active CN216594418U (en) | 2021-11-24 | 2021-11-24 | Device capable of preparing test samples for testing tensile shear strength of multiple groups of adhesives |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216594418U (en) |
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2021
- 2021-11-24 CN CN202122902256.XU patent/CN216594418U/en active Active
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Effective date of registration: 20231026 Address after: Room 45, Room 2104, Building 1, Xinyi Square, No. 68 South Tiancheng Road, High Speed Rail New City, Xiangcheng District, Suzhou City, Jiangsu Province, 215000 (cluster registration) Patentee after: Zhihang Composite Materials Technology (Jiangsu) Co.,Ltd. Address before: 215132 Building 1, No. 286, qinglonggang Road, Xiangcheng District, Suzhou City, Jiangsu Province Patentee before: Yangtze River Delta Advanced Materials Research Institute |