CN220063656U - Compression test device for laminated board - Google Patents
Compression test device for laminated board Download PDFInfo
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- CN220063656U CN220063656U CN202320964685.6U CN202320964685U CN220063656U CN 220063656 U CN220063656 U CN 220063656U CN 202320964685 U CN202320964685 U CN 202320964685U CN 220063656 U CN220063656 U CN 220063656U
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- 238000012669 compression test Methods 0.000 title claims abstract description 31
- 238000003825 pressing Methods 0.000 claims abstract description 62
- 230000000712 assembly Effects 0.000 claims abstract description 22
- 238000000429 assembly Methods 0.000 claims abstract description 22
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 10
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 238000012360 testing method Methods 0.000 abstract description 73
- 239000002131 composite material Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000032798 delamination Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000011151 fibre-reinforced plastic Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000275 quality assurance Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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Abstract
The utility model relates to a compression test device for laminated boards, which comprises: first and second pressure members, first and second clamping assemblies, and first and second height adjustment assemblies; wherein the first pressing piece and the second pressing piece are coaxial and are arranged at a certain distance; the laminated board is arranged between the first pressing piece and the second pressing piece, and the front surface and the rear surface of the laminated board are symmetrically provided with a first clamping component and a second clamping component; a first height adjustment assembly and/or the second height adjustment assembly is provided between the first and second clamping assemblies and the first pressing member. The device provided by the utility model can be matched with laminated boards with various size and configuration by adding the cushion blocks, so that the applicability of the device is improved, and the test cost is reduced; the reinforcing ribs are adopted to lighten the weight of the device while ensuring the strength of the device, the test pieces are simple to install, the test pieces of laminated boards with various sizes are rapidly installed, the test period is shortened, and the test efficiency is improved.
Description
Technical Field
The utility model relates to the technical field of aircraft compression tests, in particular to a compression test device for a laminated board.
Background
In the prior art, compression tests provide basic data for material specification, material development and research, quality assurance, structural design and analysis. Existing compression test methods provide for the determination of the compression properties of high modulus fiber reinforced polymer matrix composite laminates by supporting the sample surface with multiple bolted support fixtures. Due to the actual requirements of aircraft strength design, the influence of different damage parameters on the strength performance of the composite material laminated plate structure, such as damage size, width-to-diameter ratio, hole spacing and the like, needs to be studied, so that the test piece has various size configurations. The existing clamp is only suitable for one test piece size, and for large-size test pieces, the existing clamp is large in weight and large in installation difficulty; secondly, the length of the clamp and the width of the surface supporting the test piece are fixed, so that the clamp is only suitable for the test piece with fixed length and width, for the test piece with larger size or different size types, the whole quality of the existing clamp can be quite large, the clamp is separated from the pressure driving of the clamp, the clamp is required to be placed on a testing machine after being integrally assembled before the test, and the installation difficulty is quite high.
Disclosure of Invention
The utility model aims to solve the defects in the prior art and provides a compression test device for a laminated board, which is used for solving the problems in the prior art.
The above technical object of the present utility model is achieved by the following technical means.
A compression test apparatus for a laminate, the apparatus comprising: first and second pressure members, first and second clamping assemblies, and first and second height adjustment assemblies; wherein,
the first pressing piece and the second pressing piece are coaxial and are arranged at a certain distance, and are used for providing pressure in the vertical direction for the laminated board during a compression test;
the laminated board is arranged between the first pressing piece and the second pressing piece, the front surface and the rear surface of the laminated board are symmetrically provided with the first clamping component and the second clamping component, and the first clamping component and the second clamping component are used for clamping the laminated board;
a first said adjustment assembly is provided between said first and second clamping assemblies and the first pressing member, and/or a second said height adjustment assembly is provided between said first and second clamping assemblies and the second pressing member.
In aspects and any possible implementation manner as described above, there is further provided an implementation manner, where the first pressing member is an upper pressing plate, and the second pressing member is a lower pressing plate.
In accordance with aspects and any of the possible implementations described above, there is further provided an implementation in which the first and second height adjustment assemblies each include at least one and more spacers.
In the aspect and any possible implementation manner described above, there is further provided an implementation manner, where the first clamping assembly includes, from top to bottom, a short clamping plate, a supporting plate, and a long clamping plate, and the supporting plate is connected with the short clamping plate and is attached to a surface of the long clamping plate, so that the long clamping plate and the surface of the short clamping plate are in the same vertical plane.
In the aspect and any possible implementation manner described above, there is further provided an implementation manner, the second clamping assembly includes, from top to bottom, a long clamping plate, a supporting plate, and a short clamping plate, where the supporting plate is connected to the short clamping plate and is attached to a surface of the long clamping plate, so that the short clamping plate and the surface of the long clamping plate are in the same plane.
In the aspect and any possible implementation manner described above, there is further provided an implementation manner, where the short clamping plate and the long clamping plate each include a transverse plate and a vertical plate that are vertically connected, and the first height adjustment assembly is disposed between the plate surface of the transverse plate of the short clamping plate and the first pressing member; the second height adjusting assembly is arranged between the plate surface of the transverse plate and the second pressing piece of the long clamping plate, and the vertical plates of the short clamping plate and the long clamping plate are arranged in the same vertical plane and are attached to the rear surface of the laminated plate.
In the aspect and any possible implementation manner described above, there is further provided an implementation manner, where the long clamping plate and the short clamping plate each include a transverse plate and a vertical plate that are vertically connected, and the first height adjustment assembly is disposed between the plate surface of the transverse plate of the long clamping plate and the first pressing member; the second height adjusting assembly is arranged between the plate surface of the transverse plate and the second pressing piece of the short clamping plate, and the vertical plates of the long clamping plate and the short clamping plate are arranged in the same vertical plane and are attached to the rear surface of the laminated plate.
In aspects and any one of the possible implementations described above, there is further provided an implementation in which the long clamping plate is provided with a visible window opening corresponding to a damaged position on the laminate.
In the aspect and any possible implementation manner described above, there is further provided an implementation manner, wherein a plate surface of the transverse plate is identical to a shape of the cushion block.
In aspects and any one of the possible implementations described above, there is further provided an implementation in which the reinforcing ribs are disposed between the transverse plates and the vertical plates.
The beneficial technical effects of the utility model
The utility model provides an embodiment, a compression test device for a laminated board, the device comprising: first and second pressure members, first and second clamping assemblies, and first and second height adjustment assemblies; the first pressing piece and the second pressing piece are coaxial and are arranged at a certain distance, and are used for providing pressure in the vertical direction for the laminated board during a compression test; the laminated board is arranged between the first pressing piece and the second pressing piece, the front surface and the rear surface of the laminated board are symmetrically provided with the first clamping component and the second clamping component, and the first clamping component and the second clamping component are used for clamping the laminated board; a first said adjustment assembly is provided between said first and second clamping assemblies and the first pressing member, and/or a second said height adjustment assembly is provided between said first and second clamping assemblies and the second pressing member. The device provided by the utility model can be matched with laminated boards with various size and configuration by adding the cushion blocks, so that the applicability of the device is improved, and the test cost is reduced; the reinforcing ribs are adopted to lighten the weight of the device while ensuring the strength of the device, the test pieces are simple to install, the test pieces of laminated boards with various sizes are rapidly installed, the test period is shortened, and the test efficiency is improved.
Drawings
Embodiments of the present utility model are described in detail below with reference to the attached drawing figures, wherein:
FIG. 1 is a schematic diagram of a test device according to an embodiment of the present utility model;
FIG. 2 is a schematic view of a long clamping plate according to an embodiment of the present utility model;
FIG. 3 is a schematic view of a short clamping plate according to an embodiment of the present utility model;
FIG. 4 is a schematic view showing the structure of a support plate according to an embodiment of the present utility model;
FIG. 5 is a schematic diagram of a platen according to an embodiment of the present utility model;
fig. 6 is a schematic structural diagram of a pad according to an embodiment of the present utility model.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present utility model more apparent, the following detailed description will be given with reference to the accompanying drawings and specific examples, but the embodiments of the present utility model are not limited thereto.
As shown in fig. 1, the present utility model provides a compression test apparatus for a laminate for an aircraft, the apparatus comprising: first and second pressure members, first and second clamping assemblies, and first and second height adjustment assemblies; wherein,
the first pressing piece and the second pressing piece are coaxial and are arranged at a certain distance, and are used for providing pressure in the vertical direction for the laminated board 6 during a compression test;
the laminated board 6 is arranged between the first pressing piece and the second pressing piece, the front surface and the rear surface of the laminated board are symmetrically provided with the first clamping component and the second clamping component, and the first clamping component and the second clamping component are used for clamping the laminated board 6;
the first height adjustment assembly is disposed between the first and second clamping assemblies and the first compression member and/or the second height adjustment assembly is disposed between the first and second clamping assemblies and the second compression member, wherein the laminate 6 is a damaged large-sized composite laminate test piece. The composite laminate 6 is subject to delamination, perforation, scoring, etc. during manufacture and use, and in order to study the impact of different damage parameters (e.g., delamination area, perforation size, hole spacing, aspect ratio, etc.) on the strength properties of the composite laminate 6, the test pieces are provided with a plurality of dimensional configurations, and the test device of the present utility model can be used to test pieces of the plurality of dimensional configurations by employing a height adjustment assembly. The height adjusting assembly is realized by adopting a cushion block.
The existing clamp in ASTM D6484 is only suitable for test pieces with the length of 300mm and the width of 36mm, and the clamp is separated from an upper pressing plate and a lower pressing plate, so that the clamp cannot be suitable for test pieces with other sizes by adding cushion blocks. For test pieces with larger sizes, if the clamp is designed in the form of the clamp according to ASTM D6484, the overall mass of the clamp will be large, and since the clamp is separated from the upper and lower platens, the clamp needs to be integrally assembled and then placed on a testing machine, so that the installation difficulty is high. The test piece in the present utility model may be of a large size, i.e. a test piece longer than 300mm and up to 1000 mm. Because the test pieces have a plurality of sizes, such as 400mm, 410mm and 420mm, if each size has a set of test equipment with high cost, the test equipment has the specification of being suitable for the length of 400mm, and for the length of a laminated board of 410mm, a cushion block with the thickness of 5mm is respectively padded on an upper pressing plate and a lower pressing plate; for a laminate length of 420mm, a 10mm thick pad was placed on each of the upper and lower platens. But the pad should not be too thick, otherwise the test results are poor, typically not exceeding 30mm. For pad thicknesses exceeding 30mm, i.e. if too much difference is present, such as 500mm, a pad of 50mm thickness is required for each of the upper and lower pads with a 400mm test apparatus, and a test set suitable for 500mm is required for the test set, which is adapted to a test piece of 510mm or 520mm in length by adding pads.
According to the utility model, the long and short clamping plates are designed into L shapes, so that the long and short clamping plates can be connected with the upper pressing plate and the lower pressing plate through bolts, and therefore, test pieces with various sizes can be adapted in a mode of adding cushion blocks with different thicknesses. In addition, the L-shaped long and short clamping plates are connected with the upper pressure plate and the lower pressure plate, so that the test piece is conveniently installed by loosening the connecting bolts of the long and short clamping plates on one side and the upper pressure plate and the lower pressure plate and drawing out the test piece and fastening the bolts again.
Preferably, the first pressing member is an upper pressing plate 1, the second pressing member is a lower pressing plate 7, and the upper pressing plate 1 and the lower pressing plate 7 are used for connecting an external testing machine in compression loading when the laminated plate 6 is subjected to compression test to provide pressure in the vertical direction.
Preferably, the first and second height adjustment assemblies each comprise at least one and more spacers 2, all of which spacers 2 have the same or different thickness, selected according to the height of the laminate 6 of different or large dimensions. The maximum thickness of the cushion block is not more than 30mm, and cushion blocks with the same thickness are preferably arranged at the upper pressure plate and the lower pressure plate when the cushion blocks with the thickness of 5mm,10mm and the like are used, so that the damage position on the test piece is consistent with the position of an observation port formed in the long clamping plate, the cushion block is positioned in the height center of the whole device, and the structure of the long clamping plate is described in detail below.
Preferably, the first clamping assembly disposed at the front side of the front surface of the laminated board 6 sequentially includes a first short clamping plate 5, a first supporting plate 4 and a first long clamping plate 3 from top to bottom, and the first supporting plate 4 is connected with the first short clamping plate 5 and is attached to the surface of the first long clamping plate 3, so that the first long clamping plate 3 and the surface of the first short clamping plate 5 are in the same vertical plane. The first support plate 4 is such that during the whole test, the surfaces of the first long clamping plate 3 and the first short clamping plate 5 are in the same vertical plane, so that good fit is provided with the surface of the test piece, lateral constraint is provided for the test piece, and the test piece is prevented from bending during the compression test.
Preferably, the second clamping assembly disposed at the rear side of the rear surface of the laminated board 6 sequentially includes a second long clamping plate 3, a second supporting plate 4 and a second short clamping plate 5 from top to bottom, and the second supporting plate 4 is connected with the second short clamping plate 5 and is attached to the surface of the second long clamping plate 3, such that the second short clamping plate 5 and the surface of the second long clamping plate 3 are in the same vertical plane. The arrangement is such that the gap between the second long clamping plate 3 and the second short clamping plate 5 is located at a different level of the test piece, thereby providing better lateral restraint to the laminate 6 test piece against bending.
Preferably, the first short clamping plate 5 and the first long clamping plate 3 of the first clamping assembly comprise a transverse plate and a vertical plate which are vertically connected, a first height adjusting assembly is arranged between the plate surface of the transverse plate of the first short clamping plate 5 and the upper pressing plate 1, the assembly can comprise one or more cushion blocks 2, the thickness of each cushion block 2 is the same or different, the shape is the same as the plate surface of the transverse plate, and the cushion blocks are fixed with the plate surface of the transverse plate through bolts; the second height adjusting assembly is arranged between the plate surface of the transverse plate and the lower pressing plate 7 of the second long clamping plate 3, the assembly can comprise one or more cushion blocks 2, the thickness of each cushion block 2 is the same or different, the shape is the same as that of the plate surface of the transverse plate, the transverse plate is fixed with the plate surface of the transverse plate through bolts, and the vertical plates of the first short clamping plate 5 and the first long clamping plate 3 are in the same vertical plane and are attached to the front surface of the laminated plate 6.
Preferably, the second long clamping plate 3 and the second short clamping plate 5 of the second clamping assembly comprise a transverse plate and a vertical plate which are vertically connected, the first height adjusting assembly is arranged between the plate surface of the transverse plate of the second long clamping plate 3 and the upper pressing plate 1, the assembly can comprise one or more cushion blocks 2, the thickness of each cushion block 2 is the same or different, the shape is the same as the plate surface of the transverse plate, and the cushion blocks 2 are fixed with the plate surface of the transverse plate through bolts; the second height adjusting assembly is arranged between the plate surface of the transverse plate and the lower pressing plate 7 of the second short clamping plate 5, the assembly can comprise one or more cushion blocks 2, the thickness of each cushion block 2 is the same or different, the shape of each cushion block 2 is the same as that of the plate surface of the transverse plate, each cushion block 2 is fixed with the plate surface of the transverse plate through bolts, and meanwhile, the vertical plates of the long clamping plate and the short clamping plate are in the same vertical plane and are attached to the rear surface of the laminated plate 6.
Preferably, as shown in fig. 2 and 3, a reinforcing rib is provided between the lateral plates and the vertical plates of the long and short clamping plates, so that the quality of the test device is reduced while the strength is ensured, to improve the installation efficiency.
Preferably, the plate surface of the transverse plate is the same as the shape of the cushion block. The long clamping plate, the short clamping plate and the cushion block can be better connected and fixed with the upper pressure plate and the lower pressure plate through bolts due to the fact that the long clamping plate, the short clamping plate and the cushion block are identical in shape, and are prevented from sliding relatively in the test process.
As shown in fig. 2, the first long clamping plate and the second long clamping plate are identical in structure, and the long clamping plates 3 comprise L-shaped transverse plates, L-shaped vertical plates and reinforcing ribs. The transverse plate is provided with grooves, the sizes and positions of which correspond to the positions and sizes of threaded holes on the upper pressure plate and the lower pressure plate, and the long clamping plate is connected with the upper pressure plate and the lower pressure plate through bolts. The vertical plate is provided with a rectangular visual window opening, the size and the position of which correspond to the damage size and the position of the laminated plate 6 serving as a test piece, and damage on the test piece is observed and monitored in the test process. The vertical plate is additionally provided with a triangular notch or a notch, the shape and the size of the triangular notch or the notch are matched with those of the triangular bulge on the short clamping plate 5, and the triangular bulge and the notch are arranged at the connecting gap between the long clamping plate and the short clamping plate, so that the test piece can be laterally supported and prevented from being bent. The long clamping plate 3 is provided with bolt holes on two side edges, and the size and the position of the long clamping plate correspond to the bolt holes on two side edges of the short clamping plate 5 so as to connect the long clamping plate and the short clamping plate through bolts. The section shape of the reinforcing rib is trapezoid, and is used for increasing the rigidity and strength of the test device.
The test apparatus of the present utility model is an improvement over the existing ASTM D6484 jig by providing a visual window opening in the long clamping plate 3 at a position corresponding to the damage position of the laminate 6 as a viewing port for viewing and monitoring the damage condition of the laminate 6 during the test through the opening.
As shown in fig. 3, the first and second short clamping plates 5 are identical in structure and each include L-shaped transverse and vertical plates and reinforcing ribs. The transverse plate is provided with grooves, the sizes and positions of which correspond to the positions and sizes of threaded holes on the upper and lower pressure plates, so that the short clamping plates 5 are connected with the upper and lower pressure plates through bolts. The vertical plate is provided with triangular protrusions, and the shape and the size of the triangular protrusions are matched with those of triangular notches or notches on the long clamping plate 3. The short clamping plates 5 are provided with bolt holes at the positions of the two sides, and the sizes and the positions of the short clamping plates correspond to the bolt holes arranged on the two sides of the long clamping plates 3 so as to connect the long clamping plates and the short clamping plates through bolts. Meanwhile, a threaded hole is formed in the middle of the short clamping plate 5, and the size and the position of the threaded hole correspond to those of the middle bolt hole of the supporting plate 4, so that the supporting plate 4 and the short clamping plate 5 are connected through bolts. The section shape of the reinforcing rib is trapezoid, and is used for increasing the rigidity and strength of the test device.
As shown in fig. 4, the first and second support plates 4 are all rectangular in structure, and have the same width as the long and short clamping plates and a height which is a triangular notch capable of covering the long clamping plate 3 after the device is assembled. The holes on the supporting plate 4 are consistent with the holes on the upper part of the short clamping plate 5, and can be connected with the short clamping plate 5 through bolts.
As shown in fig. 5, the upper platen and the lower platen are identical in structure, and the platens include a circular disk surface, a vertical rod, and a transition section. The round disc surface is provided with a threaded hole, the size and the position of which correspond to the slotting positions of the long clamping plate and the short clamping plate on two sides of the test piece, so that the pressure plate is connected with the long clamping plate and the short clamping plate through bolts. The testing machine used for the vertical rod structure adaptation is used for being connected with the testing machine. The transition section is the transition of circular quotation to vertical pole, is the cylinder that the diameter continuously reduces to reduce the stress concentration of pressure disk.
As shown in fig. 6, the cushion block 2 is rectangular, and its length and width are matched with the transverse plate dimensions of the long and short clamping plates. The cushion block 2 is provided with a slot, and the size and the position of the slot are consistent with those of the long clamping plate and the short clamping plate.
In the device, all parts are connected through bolts, a cushion block 2 is placed between an upper pressing plate 1 and a second long clamping plate 3 on one side of a test piece and between a first short clamping plate 5 and the upper pressing plate 1 on the other side of the test piece, and the cushion block is fixed through bolts, a supporting plate 4 is connected with the first short clamping plate 5 through bolts and is attached to the surface of the first long clamping plate 3, so that the first long clamping plate 3 and the first short clamping plate 5 are in the same plane, the first long clamping plate 3 and the second long clamping plate 3 on two sides of a laminated plate 6 are connected with the first short clamping plate 5 and the second short clamping plate 5 through bolts, and the upper pressing plate 1 is connected with test loading equipment, and the loading function is realized.
The first long clamping plate 3, the second short clamping plate 5 and the first supporting plate 4 are matched for use. Gaps are provided between the long and short clamping plates 3, 5 and the laminate 6 in order to minimize friction effects. For laminate test pieces of different sizes, the overall length of the device is matched with the length dimension of the test piece of the laminate 6 by adding a cushion block 2 between the upper pressure plate 1 and the first long clamping plate 3 and the second short clamping plate 5. Further, the reinforcing ribs are designed on the first long clamping plate 3 and the second short clamping plate 5, the strength is ensured, the weight or the weight is reduced, and as the first long clamping plate 3 and the second short clamping plate 5 are connected with the upper pressing plate 1, the laminated plate 6 is simply installed by loosening the connecting bolts between the first long clamping plate 3 and the second short clamping plate 5 and the connecting bolts with the upper pressing plate 1, and the laminated plate 6 is simply installed.
The utility model also provides a test method of the compression test device for the laminated board, which is realized by adopting the compression test device for the laminated board and comprises the following steps of:
s1, selecting a cushion block with corresponding thickness according to the height of a laminated board, and fixedly connecting a short clamping plate, a supporting plate and a long clamping plate of a first clamping assembly;
s2, installing the laminated board;
s3, fixedly connecting a long clamping plate, a supporting plate and a short clamping plate of the second clamping assembly;
s4, fixedly connecting a long clamping plate and a short clamping plate of the first clamping assembly and the second clamping assembly on two sides of the laminated board, and clamping the laminated board between the first clamping assembly and the second clamping assembly;
s5, carrying out compression test on the laminated board, and recording corresponding test results.
The specific test steps are as follows:
1) Selecting cushion blocks 2 with different thicknesses according to the length dimension of a test piece of the laminated board 6, connecting a second short clamping plate 5 and the cushion blocks 2 on one side (front side) with an upper pressing disc 1, connecting a second long clamping plate 3 and the cushion blocks 2 with a lower pressing disc 7, connecting a second supporting plate 4 with the second short clamping plate 5 and the second long clamping plate 3 through bolts, and ensuring that the side surfaces of the second long clamping plate 3, the second short clamping plate 5 and the cushion blocks 2 are on the same plane;
2) Mounting the laminated board 6 as a test piece;
3) The first long clamping plate 3, the first short clamping plate 5, the first supporting plate 4 and the cushion block 2 are arranged on the other side (rear side), wherein the first long clamping plate 3 and the cushion block 2 are connected with the upper pressure plate 1, and the first short clamping plate 5 and the cushion block 2 are connected with the lower pressure plate 7;
4) The first short clamping plates on two sides are connected with the second long clamping plates, and bolt holes on the first long clamping plates and the second short clamping plates through bolts;
5) The laminate 6 was subjected to a compression test.
In addition, after the test of the laminated board 6 is finished, if the laminated board 6 with other lengths is required to be tested, the bolts of the long clamping board 3 and the short clamping board 5 on one side (such as the rear side) are detached and fixed when the test piece is replaced, the bolts of the long clamping board on the rear side and the bolts of the upper pressing plate and the lower pressing plate are loosened, the tested laminated board 6 is extracted, a new laminated board 6 test piece is inserted, and the steps 3) to 5) are repeated.
While the foregoing description illustrates and describes the preferred embodiments of the present utility model, it is to be understood that the utility model is not limited to the forms disclosed herein, but is not to be construed as limited to other embodiments, and is capable of numerous other combinations, modifications and environments and is capable of changes or modifications within the scope of the claimed utility model, either as a result of the foregoing teachings or as a result of knowledge in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the utility model are intended to be within the scope of the appended claims.
Claims (10)
1. A compression test apparatus for a laminate, the apparatus comprising: first and second pressure members, first and second clamping assemblies, and first and second height adjustment assemblies; wherein,
the first pressing piece and the second pressing piece are coaxial and are arranged at a certain distance, and are used for providing pressure in the vertical direction for the laminated board during a compression test;
the laminated board is arranged between the first pressing piece and the second pressing piece, the front surface and the rear surface of the laminated board are symmetrically provided with the first clamping component and the second clamping component, and the first clamping component and the second clamping component are used for clamping the laminated board;
the first height adjustment assembly is disposed between the first and second clamping assemblies and the first compression member, and/or the second height adjustment assembly is disposed between the first and second clamping assemblies and the second compression member.
2. The compression test apparatus for a laminate of claim 1, wherein the first pressure applying member is an upper platen and the second pressure applying member is a lower platen.
3. The compression test apparatus for a laminate of claim 1, wherein the first and second height adjustment assemblies each comprise at least one and more spacer blocks.
4. A compression test apparatus for a laminate according to claim 3, wherein the first clamping assembly comprises, in order from top to bottom, a short clamping plate, a support plate and a long clamping plate, the support plate being connected to the short clamping plate and conforming to a surface of the long clamping plate such that the long clamping plate and the surface of the short clamping plate are in the same vertical plane.
5. A compression test apparatus for a laminate according to claim 3, wherein the second clamping assembly comprises, in order from top to bottom, a long clamping plate, a support plate and a short clamping plate, the support plate being connected to the short clamping plate and conforming to the surface of the long clamping plate such that the short clamping plate is in the same plane as the surface of the long clamping plate.
6. The compression test apparatus for laminated boards according to claim 4, wherein the short clamping plate and the long clamping plate each comprise a transverse plate and a vertical plate which are vertically connected, and the first height adjusting assembly is provided between the plate surface of the transverse plate of the short clamping plate and the first pressing member; the second height adjusting assembly is arranged between the plate surface of the transverse plate and the second pressing piece of the long clamping plate, and the vertical plates of the short clamping plate and the long clamping plate are arranged in the same vertical plane and are attached to the rear surface of the laminated plate.
7. The compression test apparatus for laminated boards according to claim 5, wherein the long clamping plate and the short clamping plate each comprise a transverse plate and a vertical plate which are vertically connected, and the first height adjusting assembly is provided between the plate surface of the transverse plate of the long clamping plate and the first pressing member; the second height adjusting assembly is arranged between the plate surface of the transverse plate and the second pressing piece of the short clamping plate, and the vertical plates of the long clamping plate and the short clamping plate are arranged in the same vertical plane and are attached to the rear surface of the laminated plate.
8. The compression test apparatus for laminated boards according to claim 4, wherein the long clamping plate is provided with a visible window opening corresponding to a damaged position on the laminated board.
9. The compression test apparatus for a laminated board according to claim 6 or 7, wherein the plate surface of the lateral plate is the same shape as the pad.
10. The compression test apparatus for laminated boards according to claim 6 or 7, wherein a reinforcing rib is provided between the lateral plate and the vertical plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320964685.6U CN220063656U (en) | 2023-04-25 | 2023-04-25 | Compression test device for laminated board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320964685.6U CN220063656U (en) | 2023-04-25 | 2023-04-25 | Compression test device for laminated board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220063656U true CN220063656U (en) | 2023-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320964685.6U Active CN220063656U (en) | 2023-04-25 | 2023-04-25 | Compression test device for laminated board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220063656U (en) |
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2023
- 2023-04-25 CN CN202320964685.6U patent/CN220063656U/en active Active
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