CN210221750U - Experimental impact specimen V type breach centering measuring device of using - Google Patents
Experimental impact specimen V type breach centering measuring device of using Download PDFInfo
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- CN210221750U CN210221750U CN201920689974.3U CN201920689974U CN210221750U CN 210221750 U CN210221750 U CN 210221750U CN 201920689974 U CN201920689974 U CN 201920689974U CN 210221750 U CN210221750 U CN 210221750U
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- 238000012360 testing method Methods 0.000 claims description 15
- 238000005259 measurement Methods 0.000 abstract description 16
- 238000000034 method Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 3
- 238000009863 impact test Methods 0.000 description 8
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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Abstract
The utility model discloses an it is experimental with impact specimen V type breach centering measuring device, including blade, locator card foot, V type breach locating piece and about the blade central line set up brake screw, vernier, chi frame, main scale, activity card foot, fine motion nut and the micro-motion device of symmetry in pairs, directly over the blade central line position is located to the locator card foot, under the blade central line position is located to V type breach locating piece, locator card foot and V type breach locating piece central line and blade central line coincidence, the scale mark of two sets of main scales and vernier sets up about blade central line symmetry, and zero scale mark is close to blade central line one side, centering measuring device forms about the blade central line be the symmetrical structure of axle. The utility model discloses have easy and simple to handle, the plane of symmetry that can the accurate location breach is zero point promptly for measuring distance's starting point, can record the distance of breach plane of symmetry and sample terminal surface simultaneously, has reduced the irrelevant variable in the conventional measurement process, saves time, laborsaving.
Description
Technical Field
The utility model relates to a material impact property tests the field, provides an it is experimental with impact specimen V type breach centering measuring device very much.
Background
The ability of a material to impact a load is referred to as the impact performance of the material. Impact load refers to the load applied to a part at a relatively high speed. When the part is subjected to an impact load, the stresses and deformations caused by the instantaneous impact are much greater than in the case of static loads. Therefore, the impact properties of the material must be taken into account when manufacturing such parts.
The impact test is a test method which utilizes the energy conservation principle to break a test sample with a V-shaped or U-shaped notch with certain shape and size under the action of impact load so as to measure the energy absorption of the test sample. The impact test is a dynamic mechanical property test of a sample under the action of an impact test force. The impact test is sensitive to material defects, which can sensitively reflect macroscopic defects of the material, minute changes of the microstructure and the quality of the material. Therefore, the impact test is an effective method for testing the quality of smelting, hot working and heat treatment processes in production.
In the testing process, the centering state of the V-shaped notch seriously affects the mechanical property of the material, so the centering state of the V-shaped notch of the test sample needs to be controlled before the impact test is carried out. Especially, for an automatic positioning testing machine, the requirement for the distance deviation between the notch symmetrical plane and the end part is stricter, so that whether the distance between the notch symmetrical plane and the end part can be accurately measured is very important for an impact test result.
Due to the particularity of the V-shaped notch sample, no measuring tool for directly measuring the distance between the symmetrical plane and the end part of the notch of the sample is available at home and abroad at present. When the distance between the two edges of the notch and the end part and the length of the sample are measured by adopting a conventional vernier caliper to calculate or estimate the distance between the symmetrical plane of the notch and the end part, the movable clamping foot is often difficult to clamp the center of the notch, so that the symmetrical plane of the notch is difficult to be taken as a measurement starting point. This process is loaded down with trivial details, and has great artificial measuring error, because V type breach side and sample terminal surface nonparallel, during the measurement, the activity card foot can be crooked, can't guarantee vertical position to lead to the measuring result to be bigger than normal, the indirect impact test result that influences.
In the existing method for centering the notch, a projector with notch size tolerance is also adopted to compare the distance between the symmetrical plane of the notch of the sample and the end part and determine whether the distance is within the standard tolerance range. The projector cannot measure the specific numerical values of the notch symmetry plane and the end part of the notch sample, and can only show whether the specific numerical values are within the standard error range. In practical application, the processed sample has various sizes, and the comparison by using the projector is labor-consuming and time-consuming. In addition, in the comparison process, the artificial measurement error is large.
SUMMERY OF THE UTILITY MODEL
In order to obtain the distance of breach plane of symmetry and tip, survey the centering state of breach sample, the utility model provides an it is experimental with impact specimen V type breach centering measuring device can realize the distance of direct measurement breach plane of symmetry and sample both ends.
The technical scheme of the utility model is that: a centering measuring device for a V-shaped notch of an impact sample for a test comprises a ruler body 1, a brake screw 2, a vernier 3, a ruler frame 4, a main ruler 5, a movable clamping foot 6, a micro-motion nut 9 and a micro-motion device 10, wherein the brake screw 2, the vernier 3, the ruler frame 4, the main ruler 5, the movable clamping foot 6, the micro-motion nut 9 and the micro-motion device 10 are symmetrically arranged in pairs about the central line of the ruler body 1; centering measuring device still includes locator card foot 7 and V type breach locating piece 8, locator card foot 7 is located directly over 1 center line position of blade, V type breach locating piece 8 is located directly under 1 center line position of blade, locator card foot 7 and 8 center lines of V type breach locating piece coincide with 1 center line of blade, and two sets of main rulers 5 and vernier 3's scale mark sets up about 1 center line symmetry of blade, and zero scale mark is close to 1 center line one side of blade, centering measuring device forms about 1 center line of blade as the symmetrical structure of axle.
Preferably, the positioning clamping foot 7 and the V-shaped notch positioning block 8 are integrally formed with the ruler body 1.
Preferably, the movable clamping leg 6 and the cursor 3 are integrally formed.
The utility model discloses following profitable effect has:
the utility model discloses a be suitable for the measurement of V type breach sample breach centering state, have easy and simple to handle, the plane of symmetry that can the accurate location breach is zero point promptly for measuring distance's starting point, can record the distance of breach plane of symmetry and sample terminal surface simultaneously, has reduced the irrelevant variable among the conventional measurement process, saves time, laborsaving.
Drawings
Fig. 1 is a schematic view of a V-notch sample according to the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic view of the measurement of the centering of a V-notch sample according to the present invention;
fig. 4 is a schematic size diagram of the V-shaped notch positioning block 8 in the embodiment of the present invention;
in the figure: 1. a ruler body; 2. a brake screw; 3. a cursor; 4. a ruler frame; 5. a main scale; 6. a movable clamping pin; 7. positioning clamp feet; 8. a V-shaped notch positioning block; 9. a micro nut; 10. a micro-motion device; 11. v-notch test specimen.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1-4, a test impact sample V-shaped notch centering measuring device comprises a ruler body 1, a brake screw 2, a vernier 3, a ruler frame 4, a main ruler 5, a movable clamping foot 6, a positioning clamping foot 7, a V-shaped notch positioning block 8, a jogging nut 9 and a jogging device 10; the brake screw 2, the vernier 3, the ruler frame 4, the main ruler 5, the movable clamping foot 6, the inching nut 9 and the inching device 10 are symmetrically arranged in pairs about the central line of the ruler body 1; the positioning clamp foot 7 is arranged right above the central line position of the ruler body 1, the V-shaped notch positioning block 8 is arranged right below the central line position of the ruler body 1, the central lines of the positioning clamp foot 7 and the V-shaped notch positioning block 8 are overlapped with the central line of the ruler body 1, the scale marks of the two sets of main rulers 5 and the vernier 3 are symmetrically arranged about the central line of the ruler body 1, the zero scale mark is close to one side of the central line of the ruler body 1, and the centering measuring device forms a symmetrical structure taking the central line of the ruler body 1 as an axis. The positioning clamping foot 7, the V-shaped notch positioning block 8 and the ruler body 1 are integrally formed, so that the return-to-zero of double-zero scale marks can be realized, the V-shaped notch positioning block 8 can be inserted into a notch of the V-shaped notch sample 11, and the notch symmetrical plane of the V-shaped notch sample 11 can be positioned. Because the stress is uneven in the process of sliding the two cursors 3, the force is even in the measurement process by utilizing the micro-motion device 10, the measurement pressure is convenient to adjust, and the measurement error is reduced. One side of the two movable clamping feet 6 close to the symmetrical center is a measuring surface. The utility model discloses the schematic diagram of measuring V type breach sample centering condition is shown in figure 3.
It can be seen that two zero scale lines can return to zero at the same time, when the positions of the two zero scale lines are displayed, the two movable clamping feet 6 are attached correspondingly, the two ruler frames 4 are attached to the positioning clamping feet 7 at the same time, and meanwhile, the center lines of the V-shaped notch positioning block 8 and the positioning clamping feet 7 are overlapped with the attachment line of the two movable clamping feet 6. The design enables the V-shaped notch positioning block 8 to be rapidly and accurately inserted into the notch of the V-shaped notch sample 11, and the symmetrical center line of the notch can be automatically positioned. When the distance between the notch symmetry plane and the end face is measured, the V-shaped notch sample 11 is clamped at the V-shaped notch positioning block 8, and the distances from the notch symmetry plane to the left end face and the right end face are all zero points which are the starting points of the test by taking the center line of automatic positioning as the starting point. Under the condition, the ruler frames 4 on two sides can be slid simultaneously to move the movable clamping pins 6, when the two movable clamping pins 6 are clamped on two end faces of the V-shaped notch sample 11 respectively, the micro-motion device 10 is properly adjusted, namely, the distance between the symmetrical plane of the V-shaped notch and the two end faces of the sample is measured simultaneously, and the measurement result is more accurate; the movable clamping foot 6 is a measuring surface on one side close to the central line of the ruler body 1, so that the movable clamping foot 6 can be accurately close to the end surface of the V-shaped notch sample 11 during measurement, the measurement result can be ensured to be more accurate, and the centering state of the V-shaped notch sample 11 notch is determined. Additionally, the utility model discloses a simultaneous measurement breach plane of symmetry and the distance of both ends face, it is easy and simple to handle, reduced the irrelevant variable in the conventional measurement process, save time, laborsaving.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (3)
1. A V-shaped notch centering measuring device for an impact sample for a test comprises a ruler body (1), a brake screw (2), a vernier (3), a ruler frame (4), a main ruler (5), a movable clamping foot (6), a micro-motion nut (9) and a micro-motion device (10), and is characterized in that the brake screw (2), the vernier (3), the ruler frame (4), the main ruler (5), the movable clamping foot (6), the micro-motion nut (9) and the micro-motion device (10) are symmetrically arranged in pairs about the central line of the ruler body (1); centering measuring device still includes locator card foot (7) and V type breach locating piece (8), directly over blade (1) center line position is located in locator card foot (7), blade (1) center line position is located in V type breach locating piece (8) directly under, locator card foot (7) and V type breach locating piece (8) center line and blade (1) center line coincidence, the scale mark of two sets of main rulers (5) and vernier (3) sets up about blade (1) center line symmetry, and zero scale mark is close to blade (1) center line one side, centering measuring device forms about blade (1) center line be the symmetrical structure of axle.
2. The V-shaped notch centering measuring device for the test impact specimen is characterized in that the positioning clamping foot (7) and the V-shaped notch positioning block (8) are integrally formed with the ruler body (1).
3. A test impact specimen V-notch centering measuring device according to claim 2, characterized in that said movable catch (6) is formed integrally with the cursor (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920689974.3U CN210221750U (en) | 2019-05-15 | 2019-05-15 | Experimental impact specimen V type breach centering measuring device of using |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920689974.3U CN210221750U (en) | 2019-05-15 | 2019-05-15 | Experimental impact specimen V type breach centering measuring device of using |
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| Publication Number | Publication Date |
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| CN210221750U true CN210221750U (en) | 2020-03-31 |
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| CN201920689974.3U Active CN210221750U (en) | 2019-05-15 | 2019-05-15 | Experimental impact specimen V type breach centering measuring device of using |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110082244A (en) * | 2019-05-15 | 2019-08-02 | 中国科学院金属研究所 | A kind of test impact specimen v-notch Alignment measuring device |
| CN113532223A (en) * | 2021-07-21 | 2021-10-22 | 上海外高桥造船有限公司 | Cabin tail-end air pipe positioning device |
-
2019
- 2019-05-15 CN CN201920689974.3U patent/CN210221750U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110082244A (en) * | 2019-05-15 | 2019-08-02 | 中国科学院金属研究所 | A kind of test impact specimen v-notch Alignment measuring device |
| CN113532223A (en) * | 2021-07-21 | 2021-10-22 | 上海外高桥造船有限公司 | Cabin tail-end air pipe positioning device |
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