CN216830431U - Anti-torsion tool for tension-shear test - Google Patents
Anti-torsion tool for tension-shear test Download PDFInfo
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- CN216830431U CN216830431U CN202122777003.4U CN202122777003U CN216830431U CN 216830431 U CN216830431 U CN 216830431U CN 202122777003 U CN202122777003 U CN 202122777003U CN 216830431 U CN216830431 U CN 216830431U
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Abstract
The utility model relates to a tension-shear test anti-torsion tool, which relates to the field of test devices, is arranged on two sides of a base material and comprises a first fixing plate, a second fixing plate, a positioning rod and a fixing bolt; the first fixing plate and the second fixing plate are respectively arranged on two sides of the base material, the first fixing plate is provided with a first positioning hole and a fixing round hole, and the second fixing plate is provided with a second positioning hole and a fixing threaded hole; the positioning rods penetrate through the first positioning holes and the second positioning holes, and the number of the positioning rods is at least three; the fixing bolts penetrate through the fixing round holes and are in threaded connection with the fixing threaded holes, and the number of the fixing bolts is at least three. The utility model completely wraps the middle lapping area of the tension-shear test sample strip, greatly reduces the torsion stripping effect of the sample under the premise of not influencing the main stress direction of the test sample strip, ensures that the damage mode of the sample tends to be normal, the test result is more accurate, and the test is more stable.
Description
Technical Field
The utility model relates to the field of testing devices, in particular to a tension-shear test anti-torsion tool.
Background
For the lap-joint pulling-shearing test of the composite material, because the adhesive strength of the adhesive structure is high and the adhesive force is large, when the lap-joint shearing test is carried out, the lap-joint base material can cause the torsion bending phenomenon (referring to the area in the frame in the attached drawing 1) of the base material due to insufficient rigidity, so that the adhesive is peeled from the surface of the base material, the sample is damaged in advance, the damage mode is abnormal, and the test result is also abnormal; therefore, it is desirable to ensure that the substrates do not bend and twist during the testing process.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model is: the torsion-proof tool for the tension-shear test is provided, and the fact that the lap joint base materials are not bent and twisted in the test process is guaranteed.
In order to achieve the purpose, the technical scheme of the utility model provides a tension-shear test anti-torsion tool which is arranged on two sides of a base material and comprises a first fixing plate, a second fixing plate, a positioning rod and a fixing bolt; the first fixing plate and the second fixing plate are respectively arranged on two sides of the base material, the first fixing plate is provided with a first positioning hole and a fixing round hole, and the second fixing plate is provided with a second positioning hole and a fixing threaded hole; the positioning rods penetrate through the first positioning holes and the second positioning holes, and the number of the positioning rods is at least three; the fixing bolts penetrate through the fixing round holes and are in threaded connection with the fixing threaded holes, and the number of the fixing bolts is at least three.
Preferably, the first fixing plate and the second fixing plate are connected with the positioning rod in a sliding mode.
Preferably, the first positioning hole and the second positioning hole are round holes with the diameter of 4mm, and the positioning rod is a metal round rod with the length of 50mm and the diameter of 4 mm.
Preferably, the diameter of the fixing round hole is 5mm, and the diameter of the fixing threaded hole is 4 mm.
Preferably, the first fixing plate and the second fixing plate are both rectangular steel plates with the length of 50mm, the width of 45mm and the thickness of 8 mm.
In summary, the utility model has the following beneficial technical effects:
the utility model can wrap the middle lapping area of the tension-shear test sample strip, greatly reduces the torsion stripping effect of the sample on the premise of not influencing the main stress direction of the sample strip, ensures that the damage mode of the sample tends to be normal, the test result is more accurate, and the test is more stable.
Drawings
FIG. 1 is a schematic representation of a composite overlap pull shear test;
FIG. 2 is a dimensional diagram of a sample for which the present invention is applicable;
FIG. 3 is a schematic perspective view of the present invention in use;
fig. 4 is a schematic top view of the present invention in use.
Reference numerals: 1. a first fixing plate; 2. a second fixing plate; 3. a positioning rod; 4. fixing the bolt; 5. a substrate; 6. and (6) bonding the adhesive layer.
Detailed Description
The utility model is described in further detail below with reference to figures 1-4.
The embodiment of the utility model discloses a tension-shear test anti-torsion tool.
The utility model comprises a first fixing plate 1, a second fixing plate 2, four positioning rods 3 and four fixing bolts 4.
First fixed plate 1 and second fixed plate 2 are the cuboid steel sheet of length 50mm, wide 45mm and thick 8mm, and four first locating holes and four fixed round holes have been seted up to first fixed plate 1 near four end angle positions, and four second locating holes and four fixed screw holes have been seted up to second fixed plate 2 near four end angle positions, and four first locating holes and fourth second locating hole correspond respectively during the installation, and four fixed round holes and four fixed screw holes correspond the setting respectively. Wherein first locating hole and second locating hole are the round hole that the diameter is 4mm, and fixed round hole diameter is 5mm, and fixed screw hole diameter is 4mm, and the metal round rod that the length was 50mm, diameter was 4mm is adopted to location stick 3.
When the utility model is used, the fixing bolt 4 can be inserted into the fixing round hole in advance; wear to establish first locating hole and second locating hole with locating rod 3, make first fixed plate 1 and second fixed plate 2 can freely slide on locating rod 3. Then, after the base material 5 is disposed between the first fixing plate 1 and the second fixing plate 2, fixing is performed by screwing the fixing bolt 4 with the fixing screw hole.
The composite material tensile shear test sample is referred to an ISO4587 standard sample, and the sample size is shown in the attached figures 1 and 2.
The above are all preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present invention.
Claims (5)
1. The utility model provides a draw and cut test anti-twist frock locates substrate (5) both sides, its characterized in that: comprises a first fixing plate (1), a second fixing plate (2), a positioning rod (3) and a fixing bolt (4);
the first fixing plate (1) and the second fixing plate (2) are respectively arranged on two sides of the base material (5), a first positioning hole and a fixing round hole are formed in the first fixing plate (1), and a second positioning hole and a fixing threaded hole are formed in the second fixing plate (2);
The positioning rods (3) penetrate through the first positioning holes and the second positioning holes, and at least three positioning rods (3) are arranged;
the fixing bolts (4) penetrate through the fixing round holes and are in threaded connection with the fixing threaded holes, and the number of the fixing bolts (4) is at least three.
2. The tension-shear test anti-torsion tool according to claim 1, characterized in that: the first fixing plate (1) and the second fixing plate (2) are connected with the positioning rod (3) in a sliding mode.
3. The tension-shear test anti-torsion tool according to claim 1, characterized in that: the first positioning hole and the second positioning hole are round holes with the diameter of 4mm, and the positioning rod (3) is a metal round rod with the length of 50mm and the diameter of 4 mm.
4. The tension-shear test anti-torsion tool according to claim 1, characterized in that: the diameter of the fixed round hole is 5mm, and the diameter of the fixed threaded hole is 4 mm.
5. The tension-shear test anti-torsion tool according to claim 1, characterized in that: the first fixing plate (1) and the second fixing plate (2) are both rectangular steel plates with the length of 50mm, the width of 45mm and the thickness of 8 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122777003.4U CN216830431U (en) | 2021-11-12 | 2021-11-12 | Anti-torsion tool for tension-shear test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122777003.4U CN216830431U (en) | 2021-11-12 | 2021-11-12 | Anti-torsion tool for tension-shear test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216830431U true CN216830431U (en) | 2022-06-28 |
Family
ID=82102695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122777003.4U Active CN216830431U (en) | 2021-11-12 | 2021-11-12 | Anti-torsion tool for tension-shear test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216830431U (en) |
-
2021
- 2021-11-12 CN CN202122777003.4U patent/CN216830431U/en active Active
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