CN220419009U - High-precision steel bar shearing force test fixture - Google Patents
High-precision steel bar shearing force test fixture Download PDFInfo
- Publication number
- CN220419009U CN220419009U CN202321761876.9U CN202321761876U CN220419009U CN 220419009 U CN220419009 U CN 220419009U CN 202321761876 U CN202321761876 U CN 202321761876U CN 220419009 U CN220419009 U CN 220419009U
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- Prior art keywords
- pressing
- steel bar
- cutting plate
- support plates
- plate
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 57
- 239000010959 steel Substances 0.000 title claims abstract description 57
- 238000012360 testing method Methods 0.000 title claims abstract description 26
- 238000010008 shearing Methods 0.000 title abstract description 23
- 238000003825 pressing Methods 0.000 claims abstract description 50
- 238000005520 cutting process Methods 0.000 claims abstract description 45
- 230000000149 penetrating effect Effects 0.000 claims abstract description 12
- 229910000746 Structural steel Inorganic materials 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 abstract description 7
- 239000002184 metal Substances 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 3
- 238000009864 tensile test Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to the technical field of metal strength test tools, in particular to a high-precision steel bar shear force test fixture which comprises a support plate fixing seat, a support plate, a pressing and cutting plate and a pressing and cutting plate connector, wherein the support plate is in a pair of angle iron shapes, the bottom surface parts of the two support plates are fixed on the support plate fixing seat through bolts, the vertical surface parts of the two support plates are parallel and similar, and a space is formed in the middle; the pressing and cutting plate is in a flat plate shape and is in clearance fit with the vertical face parts of the two supporting plates when being positioned between the vertical face parts of the two supporting plates; steel bar penetrating through holes are correspondingly formed in the vertical face parts of the two support plates and the pressing and cutting plate; the pressing and cutting plate connector is fixed at the upper end of the pressing and cutting plate. When the high-precision steel bar shear force testing clamp is used for conducting shear force testing on the steel bar, the clamp can well simulate the shearing force condition of the steel bar in the actual use process, and the testing machine is more scientifically and accurately assisted to test the shearing force resistance data of the steel bar.
Description
Technical Field
The utility model relates to the technical field of metal strength testing tools, in particular to a high-precision steel bar shearing force testing clamp.
Background
The steel bar product is widely applied to various industries and fields. The steel bar product can be put into use through a plurality of performance detection methods, wherein the shear resistance test is one of the performance detection methods. The shearing force resistance test of the steel bar is to fix the steel bar by a clamping tool, then to transversely (perpendicular to the bar axis direction) press-cut the fixed root of the steel bar by a pressing cutter, and the pressing cutter is matched with the clamping tool to form shearing force on the steel bar, so as to obtain the pressure value when the steel bar is cut off, and to perform corresponding conversion. The tool for clamping and fixing the steel rod for detection is generally called a steel rod clamp. The existing steel bar shearing force testing clamp has a very simple structure, as shown in fig. 3, namely a fixing seat 7, wherein a horizontal steel bar penetrating through hole is formed in the fixing seat 7, and the side of one side orifice of the steel bar penetrating through hole is where a pressing cutter 8 is located. However, when such a steel bar clamp is used for the shear resistance test of the steel bar, the measured data often do not accord with the shearing force value of the steel bar in the actual use process, because the shearing force condition of the steel bar in the actual use process is often not the single flat-blade shearing mode formed by the cooperation of the existing steel bar clamp and the pressing cutter.
Disclosure of Invention
The utility model aims to solve the technical problems that: the high-precision steel bar shearing force testing clamp can well simulate the shearing force condition of the steel bar in the actual use process, so that accurate steel bar shearing force resistance data meeting the actual conditions can be measured by matching with a testing machine, and the requirement of the current production application can be met.
The technical scheme adopted for solving the technical problems is as follows: the high-precision steel bar shearing force testing fixture comprises a supporting plate fixing seat, a supporting plate, a pressing and cutting plate and a pressing and cutting plate connector, wherein the pair of supporting plates are in angle iron shapes, the bottom surface parts of the two supporting plates are fixed on the supporting plate fixing seat through bolts, the vertical surface parts of the two supporting plates are parallel and similar, and a space is formed between the vertical surface parts of the two supporting plates; the pressing and cutting plate is in a flat plate shape, the thickness of the pressing and cutting plate is equal to the interval between the vertical face parts of the two support plates, and the pressing and cutting plate is in clearance fit with the vertical face parts of the two support plates when the pressing and cutting plate is positioned between the vertical face parts of the two support plates; steel bar penetrating through holes are correspondingly formed in the vertical face parts of the two support plates and the pressing and cutting plate; the pressing and cutting plate connector is positioned at the upper end of the pressing and cutting plate and is fixedly connected with the pressing and cutting plate.
Further, a right angle positioning edge is formed in the center of the support plate fixing seat, the lower parts of the two support plate vertical face parts are respectively abutted against two opposite vertical faces of the right angle positioning edge, and the width of the right angle positioning edge is the distance between the two support plate vertical face parts.
The beneficial effects of the utility model are as follows: when the high-precision steel bar shear force testing clamp is used for conducting shear force testing on the steel bar, the clamp can well simulate the shearing force condition of the steel bar in the actual use process, and the shearing force data of the steel bar can be measured by being matched with a testing machine more scientifically, accurately and reliably.
Drawings
The utility model is further described below with reference to the drawings and examples.
FIG. 1 is a schematic view of the structure of the present utility model (front view, broken lines show perspective);
fig. 2 is a schematic structural view (perspective view) of the present utility model;
fig. 3 is a schematic structural view (front view) of a conventional steel bar shear force test fixture.
In the figure: 1. the device comprises a support plate fixing seat 1-1, a right-angle positioning edge 2, a support plate 3, a pressing and cutting plate 4, a pressing and cutting plate connector 5, a steel rod penetrating through hole 6, a steel rod to be tested 7, a fixing seat 8 and a pressing and cutting knife.
Detailed Description
The high-precision steel bar shearing force testing fixture comprises a supporting plate fixing seat 1, a supporting plate 2, a pressing and cutting plate 3 and a pressing and cutting plate connector 4, wherein the pair of the supporting plates 2 is in an angle iron shape, the bottom surface parts of the two supporting plates 2 are fixed on the supporting plate fixing seat 1 through bolts, the vertical surface parts of the two supporting plates 2 are parallel and similar, and a space is formed in the middle; the pressing and cutting plate 3 is in a flat plate shape, the thickness of the pressing and cutting plate 3 is equal to the interval between the vertical face parts of the two support plates 2, and when the pressing and cutting plate 3 is positioned between the vertical face parts of the two support plates 2, the pressing and cutting plate 3 is in clearance fit with the vertical face parts of the two support plates 2; steel bar penetrating through holes 5 are correspondingly formed in the vertical face parts of the two support plates 2 and the pressing and cutting plate 3; the pressing and cutting plate connector 4 is positioned at the upper end of the pressing and cutting plate 3 and is fixedly connected with the pressing and cutting plate 3.
When the high-precision steel bar shearing force testing clamp is used, the support plate fixing seat 1 and the pressing and cutting plate connector 4 of the high-precision steel bar shearing force testing clamp are installed to a tensile testing machine, after the positions of the support plate fixing seat 1 and the pressing and cutting plate 3 are adjusted, a steel bar 6 to be tested is penetrated through the steel bar penetrating through holes 5 of the support plate 2 on one side, penetrates through the support plate 2 into the steel bar penetrating through holes 5 on the pressing and cutting plate 3 (without entering the steel bar penetrating through holes 5 of the support plate 2 on the other side), and meanwhile, the steel bar 6 to be tested is ensured not to be subjected to any extrusion force of the clamp (namely, the steel bar 6 to be tested can easily rotate in the steel bar penetrating through holes 5); after the steel bar 6 to be tested is placed on the clamp, starting the tensile testing machine, and pressing the cutting plate 3 under the drive of the tensile testing machine until the steel bar 6 to be tested breaks. In the pressing process of the pressing and cutting plate 3, the pressing and cutting plate 3 is close to and staggered with the orifice of the steel rod penetrating through hole 5 of the supporting plate 2 to form a toroidal shearing force of the steel rod 6 to be tested, so that the shearing force condition of the steel rod in the actual use process is completely met, and the accuracy of the measured shearing force data is ensured.
A right-angle positioning edge 1-1 is formed in the center of the support plate fixing seat 1, when the support plate 2 is installed on the support plate fixing seat 1, the lower parts of the vertical face parts of the two support plates 2 are respectively abutted against two opposite vertical faces of the right-angle positioning edge 1-1 of the support plate fixing seat 1, so that the support plate 2 can be quickly positioned, and then bolts are tightened, so that the quick installation of the support plate 2 is realized; thus, the width of the right-angle positioning rib 1-1 also becomes the interval between the vertical surface parts of the two support plates 2.
The above embodiments are only for illustrating the present utility model, not for limiting the protection of the claims, and any insubstantial modifications made on the basis of the essential aspects of the present utility model should fall within the scope of the protection of the present utility model.
Claims (2)
1. A high accuracy steel bar shear force test fixture which characterized in that: the device comprises a support plate fixing seat (1), a support plate (2), a pressing and cutting plate (3) and a pressing and cutting plate connector (4), wherein the support plates (2) are in a pair and are in angle iron shapes, the bottom surface parts of the two support plates (2) are fixed on the support plate fixing seat (1) through bolts, the vertical surface parts of the two support plates (2) are parallel and similar, and a space is formed in the middle; the pressing and cutting plate (3) is in a flat plate shape, the thickness of the pressing and cutting plate (3) is equal to the interval between the vertical face parts of the two support plates (2), and when the pressing and cutting plate (3) is positioned between the vertical face parts of the two support plates (2), the pressing and cutting plate is in clearance fit with the vertical face parts of the two support plates (2); steel bar penetrating through holes (5) are correspondingly formed in the vertical face parts of the two support plates (2) and the pressing and cutting plate (3); the pressing and cutting plate connector (4) is positioned at the upper end of the pressing and cutting plate (3) and is fixedly connected with the pressing and cutting plate (3).
2. The high accuracy steel bar shear force test fixture of claim 1, wherein: a right-angle positioning edge (1-1) is formed in the center of the support plate fixing seat (1), the lower parts of the vertical face parts of the two support plates (2) are respectively attached to two opposite vertical faces of the right-angle positioning edge (1-1), and the width of the right-angle positioning edge (1-1) is the distance between the vertical face parts of the two support plates (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321761876.9U CN220419009U (en) | 2023-07-06 | 2023-07-06 | High-precision steel bar shearing force test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321761876.9U CN220419009U (en) | 2023-07-06 | 2023-07-06 | High-precision steel bar shearing force test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220419009U true CN220419009U (en) | 2024-01-30 |
Family
ID=89648816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321761876.9U Active CN220419009U (en) | 2023-07-06 | 2023-07-06 | High-precision steel bar shearing force test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220419009U (en) |
-
2023
- 2023-07-06 CN CN202321761876.9U patent/CN220419009U/en active Active
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