CN220289292U - Hardness testing tool - Google Patents
Hardness testing tool Download PDFInfo
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- CN220289292U CN220289292U CN202322200062.4U CN202322200062U CN220289292U CN 220289292 U CN220289292 U CN 220289292U CN 202322200062 U CN202322200062 U CN 202322200062U CN 220289292 U CN220289292 U CN 220289292U
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- longitudinal movement
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- sliding block
- assembly
- testing tool
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- 238000007542 hardness measurement Methods 0.000 title claims abstract description 21
- 238000012360 testing method Methods 0.000 claims abstract description 21
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 238000007545 Vickers hardness test Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a hardness testing tool, which comprises: the device comprises a base, a moving assembly, a pressing plate assembly and a height adjusting assembly, wherein the moving assembly is movably connected to the base and is suitable for horizontal movement relative to the base; the pressing plate assembly is arranged on the base and is provided with a horizontal constant-height surface; the height adjusting component is installed on the moving component, a tested sample is placed between the height adjusting component and the pressing plate component, and the height adjusting component is suitable for being acted to support the tested sample from the lower side of the tested sample when the upper surface of the tested sample is propped between the horizontal equal-height surfaces. The utility model can keep the test surface of the tested sample in a horizontal state, thereby being beneficial to the test of the Vickers hardness.
Description
Technical Field
The utility model relates to a hardness testing tool, and belongs to the technical field of tools.
Background
At present, the hardness of a material is an important performance index for measuring the hardness degree of the material, according to GB/T9711-2017 and API 5L-2018, a vickers hardness test is required to be carried out on a pipeline pipe before delivery, a common scale is HV10, when the test is carried out, a pressure head presses a sample with a preset test force, the test force is removed after the test force is maintained for a certain time, an optical microscope equipped with equipment is used for measuring the lengths of two diagonals of the pressure head, the average diagonal length is calculated, and the plane of the surface of the sample is preferably perpendicular to the axis (namely the direction of the applied force) of the pressure head.
For a pipe with the outer diameter larger than 80mm, the pipe is generally required to be processed through a grinding machine when subjected to Vickers hardness test, then sawed into a 30mm wide sample, the surface is polished to achieve a mirror surface effect, and then the Vickers hardness test is performed, if the heights of the samples are inconsistent, only a single sample can be tested, and multiple samples cannot be tested simultaneously.
According to the search, the Chinese patent with publication number of CN109357933A discloses a hardness testing fixture based on a hardness tester, which uses the hardness tester to test the hardness of a tested sample, and cannot ensure that the testing surface of the tested sample is in a vertical state with a pressing head.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide a hardness testing tool which can keep the testing surface of a tested sample in a horizontal state, thereby being beneficial to the testing of Vickers hardness.
In order to solve the technical problems, the technical scheme of the utility model is as follows: a hardness testing tool, comprising:
a base;
the moving assembly is movably connected to the base and is suitable for horizontally moving relative to the base;
the pressing plate assembly is arranged on the base and is provided with a horizontal constant-height surface;
the height adjusting assembly is installed on the moving assembly, a tested sample is placed between the height adjusting assembly and the pressing plate assembly, and the height adjusting assembly is suitable for being acted to support the tested sample from the lower side of the tested sample when the upper surface of the tested sample is propped against the horizontal contour surface.
Further, in order to support the sample to be tested more stably, a support plate is placed on the height adjusting assembly, and the support plate supports the sample to be tested.
Further, there is provided a specific structure of a moving assembly, the moving assembly comprising:
a longitudinally movable slider adapted to be longitudinally movably slidably fitted to the base;
and the transverse moving sliding block is suitable for being slidingly matched on the longitudinal moving sliding block in a transverse moving way, and the height adjusting component is arranged on the transverse moving sliding block.
Further, in order to limit the movement of the longitudinally moving slide block, at least one longitudinally moving limiting component for limiting the sliding position of the longitudinally moving slide block relative to the base is arranged between the longitudinally moving slide block and the base.
Further, the sliding position of the longitudinally moving sliding block relative to the base is limited by screwing the longitudinally moving limiting screw to abut against the base.
Further, in order to limit the movement of the lateral movement slider, at least one lateral movement limiting component for limiting the sliding position of the lateral movement slider relative to the longitudinal movement slider is arranged between the lateral movement slider and the longitudinal movement slider.
Further, the lateral movement limiting assembly comprises a lateral movement limiting screw which is connected to the longitudinal movement sliding block through threads, and the lateral movement limiting screw is abutted to the longitudinal movement sliding block through screwing so as to limit the sliding position of the lateral movement sliding block relative to the longitudinal movement sliding block.
Further, the height adjusting component comprises a height adjusting screw rod which is connected to the moving component through threads.
Further, in order to well support the test specimen, the test specimen is fully contacted with the pressing plate assembly to reduce errors, the height adjusting screws are provided with three, and the three height adjusting screws are not positioned on the same straight line.
Further, in order to ensure that the tested sample keeps the same height under the pressing plate assembly, the pressing plate assembly comprises two pressing plates, the lower sides of the two pressing plates are correspondingly provided with a step groove, and the horizontal wall surface of the step groove is a horizontal constant-height surface.
By adopting the technical scheme, the utility model has the following beneficial effects:
according to the utility model, the movable assembly capable of horizontally moving is arranged on the base, so that the positions of different tested samples can be conveniently adjusted. Then, install the height-adjusting subassembly on moving the subassembly, use three not in the height-adjusting screw of same straight line for hardness test fixture can stably support the test sample of different height. In addition, the pressing plate component is arranged on the base, so that the height of the tested sample is kept consistent in the testing process, the testing surface of the tested sample is kept perpendicular to the pressing head, the detection of the Vickers hardness of the tested sample is facilitated, and multiple samples can be tested for the samples with different heights.
Drawings
FIG. 1 is a schematic diagram of a three-dimensional structure of a hardness testing tool according to the present utility model;
FIG. 2 is a schematic perspective view of a cutting platen assembly and a height adjustment assembly of the hardness testing tool of the present utility model;
FIG. 3 is a schematic perspective view of a resected platen assembly of the hardness testing tool of the present utility model;
fig. 4 is a schematic diagram of a three-dimensional structure of the hardness testing tool according to the present utility model.
Detailed Description
In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
As shown in fig. 1-4, a hardness testing tool includes:
a base 1;
the moving assembly 2 is movably connected to the base 1 and is suitable for horizontally moving relative to the base 1;
the pressing plate assembly 3, the pressing plate assembly 3 is mounted on the base 1, and the pressing plate assembly 3 is provided with a horizontal constant-height surface 31;
the height adjusting component 4, the height adjusting component 4 is installed on the moving component 2, the height adjusting component 4 and the pressing plate component 3 are suitable for placing the tested sample, and the height adjusting component 4 is suitable for being acted to support the tested sample from the lower side of the tested sample when the upper surface of the tested sample is propped against the horizontal contour surface 31.
Specifically, as shown in fig. 1, a support plate is disposed on the height adjusting assembly 4, and supports a sample to be tested.
In this embodiment, as shown in fig. 1, the support plate is provided to ensure that the sample to be tested remains stable during the test.
In particular, as shown in fig. 1-2, the specific structure of the mobile assembly 2 may include:
a longitudinally movable slider 21, the longitudinally movable slider 21 being adapted to be longitudinally slidably fitted on the base 1;
a lateral movement slider 22, the lateral movement slider 22 being adapted to be slidingly fitted to the longitudinal movement slider 21, the raising assembly 4 being mounted on the lateral movement slider 22.
In this embodiment, as shown in fig. 1-2, the longitudinal direction refers to the extending direction of the guide rail provided on the base 1, and the lateral direction refers to the extending direction of the guide rail on the longitudinal movement slider 21; the base 1 is provided with a longitudinal guide rail, and the longitudinal moving slide block 21 can slide on the base 1 along the longitudinal guide rail; the longitudinal moving slide 21 is provided with a transverse guide rail, and the transverse moving slide 22 can slide on the longitudinal moving slide 21 along the transverse guide rail.
Specifically, as shown in fig. 1-2, four longitudinal movement limiting assemblies 210 for defining the sliding position of the longitudinal movement slider 21 relative to the base 1 are disposed between the longitudinal movement slider 21 and the base 1, and of course, in some embodiments, the number of the longitudinal movement limiting assemblies 210 is not limited to four, and may be set according to specific requirements.
Specifically, as shown in fig. 1 to 3, the longitudinal movement limiting assembly 210 includes a longitudinal movement limiting screw 211 screwed on the longitudinal movement slider 21, and the longitudinal movement limiting screw 211 is screwed against the base 1 to define a sliding position of the longitudinal movement slider 21 relative to the base 1.
Specifically, as shown in fig. 1-2, two lateral movement limiting assemblies 220 are disposed between the lateral movement slider 22 and the longitudinal movement slider 21 for defining the sliding position of the lateral movement slider 22 relative to the longitudinal movement slider 211, and of course, in some embodiments, the number of lateral movement limiting assemblies 220 is not limited to two, and may be set according to specific requirements.
Specifically, as shown in fig. 1-3, the lateral movement limiting assembly 220 includes a lateral movement limiting screw 221 screwed to the longitudinal movement slider 21, and the lateral movement limiting screw 221 is screwed against the longitudinal movement slider 21 to define a sliding position of the lateral movement slider 22 relative to the longitudinal movement slider 21.
In this embodiment, as shown in fig. 2, the lateral movement limiting assembly 220 further includes a handle adapted for manual screwing.
In particular, as shown in fig. 1 and 3, the heightening assembly 4 includes a heightening screw 41 screwed to the moving assembly 2.
Specifically, as shown in fig. 3, the height-adjusting screws 41 are provided in three, and the three height-adjusting screws 41 are not located on the same straight line; the upper surface of the tested sample can be firstly abutted against the horizontal constant-height surface, and the supporting plate on the top of the heightening screw 41 is abutted against the tested sample by screwing the heightening screw 41; of course, the following operations are also possible: the supporting plate is placed on the heightening screw 41, then the tested sample is placed on the supporting plate, the heightening screw 41 is screwed, the upper surface of the tested sample is abutted against the horizontal ascending surface, and then the heightening screw 41 is finely adjusted.
In this embodiment, as shown in fig. 1 and 3, three height adjusting screws 41 which are not positioned in the same straight line realize stable support of the tested sample, and ensure that the tested sample is in full contact with the pressing plate assembly 3 in the testing process.
Specifically, as shown in fig. 1 and 4, the platen assembly 3 includes two platens 31, and a stepped groove 311 is correspondingly disposed at a position where the undersides of the two platens 31 abut against each other, and a horizontal wall surface of the stepped groove 311 is a horizontal contour surface 31.
In this embodiment, as shown in fig. 1 and 4, the horizontal contour surface 31 keeps the same height of the sample to be tested, so that it is convenient for a plurality of samples to be tested simultaneously by a durometer having an automatic platform, and the horizontal contour surface 31 is perpendicular to the axis of the indenter for testing hardness.
In this embodiment, the test sample may be a pipeline tube sample.
The technical problems, technical solutions and advantageous effects solved by the present utility model have been further described in detail in the above-described embodiments, and it should be understood that the above-described embodiments are only illustrative of the present utility model and are not intended to limit the present utility model, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present utility model should be included in the scope of protection of the present utility model.
Claims (10)
1. Hardness test fixture, its characterized in that includes:
a base (1);
the moving assembly (2) is movably connected to the base (1) and is suitable for horizontally moving relative to the base (1);
the pressing plate assembly (3), the pressing plate assembly (3) is arranged on the base (1), and the pressing plate assembly (3) is provided with a horizontal constant-height surface (31);
the height adjusting component (4), the height adjusting component (4) is installed on the moving component (2), the height adjusting component (4) and the pressing plate component (3) are suitable for placing a tested sample, and the height adjusting component (4) is suitable for being acted to support the tested sample from the lower side of the tested sample when the upper surface of the tested sample is propped against the horizontal constant-height surface (31).
2. The hardness testing tool according to claim 1, wherein,
and a supporting plate is arranged on the height adjusting component (4) and supports the tested sample.
3. The hardness testing tool according to claim 1, wherein,
the moving assembly (2) comprises:
a longitudinally movable slider (21), said longitudinally movable slider (21) being adapted to be longitudinally movably slidingly fitted on the base (1);
-a transversal movement slide (22), said transversal movement slide (22) being adapted to be slidingly fitted on said longitudinal movement slide (21), said elevation assembly (4) being mounted on said transversal movement slide (22).
4. The hardness testing tool according to claim 3, wherein,
at least one longitudinal movement limiting component (210) for limiting the sliding position of the longitudinal movement sliding block (21) relative to the base (1) is arranged between the longitudinal movement sliding block (21) and the base (1).
5. The hardness testing tool according to claim 4, wherein,
the longitudinal movement limiting assembly (210) comprises a longitudinal movement limiting screw (211) which is connected to the longitudinal movement sliding block (21) through threads, and the longitudinal movement limiting screw (211) is abutted to the base (1) through screwing so as to limit the sliding position of the longitudinal movement sliding block (21) relative to the base (1).
6. The hardness testing tool according to claim 3, wherein,
at least one transverse movement limiting assembly (220) for limiting the sliding position of the transverse movement sliding block (22) relative to the longitudinal movement sliding block (21) is arranged between the transverse movement sliding block (22) and the longitudinal movement sliding block (21).
7. The hardness testing tool according to claim 6, wherein,
the lateral movement limiting assembly (220) comprises a lateral movement limiting screw (221) which is connected to the longitudinal movement sliding block (21) through threads, and the lateral movement limiting screw is abutted to the longitudinal movement sliding block (21) through screwing so as to limit the sliding position of the lateral movement sliding block (22) relative to the longitudinal movement sliding block (21).
8. The hardness testing tool according to claim 1, wherein,
the height adjusting component (4) comprises a height adjusting screw (41) connected to the moving component (2) through threads.
9. The hardness testing tool according to claim 8, wherein,
the height-adjusting screws (41) are three, and the three height-adjusting screws (41) are not located on the same straight line.
10. The hardness testing tool according to claim 1, wherein,
the pressing plate assembly (3) comprises two pressing plates (32), wherein stepped grooves (311) are correspondingly formed in the positions, which are abutted to the lower sides of the two pressing plates (32), of the pressing plates, and the horizontal wall surface of each stepped groove (311) is a horizontal constant-height surface (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322200062.4U CN220289292U (en) | 2023-08-16 | 2023-08-16 | Hardness testing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322200062.4U CN220289292U (en) | 2023-08-16 | 2023-08-16 | Hardness testing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220289292U true CN220289292U (en) | 2024-01-02 |
Family
ID=89326271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322200062.4U Active CN220289292U (en) | 2023-08-16 | 2023-08-16 | Hardness testing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220289292U (en) |
-
2023
- 2023-08-16 CN CN202322200062.4U patent/CN220289292U/en active Active
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