CN212932152U - Be used for horizontal tensile test extensometer installation device of sandwich structure - Google Patents
Be used for horizontal tensile test extensometer installation device of sandwich structure Download PDFInfo
- Publication number
- CN212932152U CN212932152U CN202021504074.6U CN202021504074U CN212932152U CN 212932152 U CN212932152 U CN 212932152U CN 202021504074 U CN202021504074 U CN 202021504074U CN 212932152 U CN212932152 U CN 212932152U
- Authority
- CN
- China
- Prior art keywords
- mouth
- mounting block
- loading
- block
- extensometer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000009434 installation Methods 0.000 title claims abstract description 48
- 238000009864 tensile test Methods 0.000 title claims description 7
- 238000012360 testing method Methods 0.000 claims abstract description 23
- 238000006073 displacement reaction Methods 0.000 abstract description 29
- 238000005259 measurement Methods 0.000 abstract description 6
- 238000013519 translation Methods 0.000 description 9
- 238000002474 experimental method Methods 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A extensometer mounting device for sandwich structure level-pull tests, comprising: the mouth shape is main installs the piece, the vice installation piece of mouth shape, first loading piece, the second loading piece, two long locating pins, two short locating pins, the combination installation in locating the through-hole is inserted through two long locating pins to mouth shape main installation piece and the vice installation piece of mouth shape, first loading piece is installed in mouth shape main installation piece inner wall through hexagon socket head cap screw, the second loading piece is through hexagon socket head cap screw installation mouth shape vice installation piece inner wall, take out two long locating pins, short locating pin is inserted respectively to middle through-hole, accomplish extensometer installation device's location installation promptly, the bayonet socket of extensometer is fixed on two short fixing pins. The coaxiality precision of the two long positioning pins and the two short fixing pins in the mounting device is high, the error between the axis direction of the two short fixing pins and the translational displacement direction of the loading block is small after the two short fixing pins are mounted, the consistency of the displacement direction measured by the extensometer and the translational displacement direction between the loading blocks is ensured, and the accurate measurement of the horizontal tensile deformation of the sandwich structure is realized.
Description
[ technical field ] A method for producing a semiconductor device
The utility model belongs to the technical field of experiment mechanics and measurement, a be used for sandwich structure level to draw experimental extensometer installation device is related to.
[ background of the invention ]
In the test of the horizontal tensile property of the sandwich structure, a panel of a test piece of the sandwich structure is fixed between two loading blocks by welding or bonding, a tensile load is applied to the loading blocks by using a testing machine, so that the test piece generates tensile deformation in the direction vertical to the panel, and the horizontal tensile modulus of the sandwich structure is calculated according to the load and the horizontal displacement between the loading blocks at corresponding moments.
In order to ensure the accuracy of displacement measurement, an extensometer needs to be selected as a measuring tool. However, the conventional extensometer measures the displacement between two bayonets of the extensometer, and cannot directly measure the translational displacement between two loading blocks. The method for realizing the measurement of the translation displacement between the two loading blocks by the extensometer comprises the following steps: the translational displacement of the two loading blocks is converted into linear displacement by an extensometer mounting device, and then the linear displacement is measured by an extensometer. In order to ensure that the linear displacement really represents the translational displacement between the two loading blocks, the direction of the linear displacement is theoretically required to be completely consistent with the translational displacement directions of the two loading blocks. However, in practical tests, it is difficult to ensure that the two directions are completely consistent, so that technical means are required to control errors in the installation process, and consistency of the two directions is realized.
In the prior publication, "X-cor sandwich structure and performance research by glass fiber" (formerly Yonghu. X-cor sandwich structure and performance research by glass fiber [ D ]. Nanjing aerospace university, 2009.) the flat tensile modulus is calculated by a load displacement curve. However, since there is a gap between the test fixture and the test machine in this document, the displacement of the test machine obtained by the test does not truly reflect the actual deformation of the sandwich structure.
[ Utility model ] content
To the above problem, the utility model provides a be used for horizontal tensile test extensometer installation device of sandwich structure, wherein the axiality precision of two root length locating pins and two short fixed pins is high, and the axis direction after two short fixed pin installations is little with the error of the translation displacement direction of loading piece to ensure the unanimity of translation displacement direction between extensometer measuring displacement direction and the loading piece, realized the accurate measurement of the horizontal tensile deformation of sandwich structure.
The utility model discloses a realize through following technical scheme, provide a be used for sandwich structure level to draw experimental extensometer installation device, include: the mouth-shaped main mounting block and the mouth-shaped auxiliary mounting block are respectively and correspondingly provided with two through holes, one through hole is positioned in the middle of the mouth-shaped main mounting block and the mouth-shaped auxiliary mounting block, the mouth-shaped main mounting block and the mouth-shaped auxiliary mounting block are inserted into the through holes through the two long positioning pins to be assembled, the first loading block and the second loading block are respectively in a T shape, the transverse end of the first loading block is mounted on the inner wall of the mouth-shaped main mounting block through an inner hexagonal bolt, the transverse end of the second loading block is mounted on the inner wall of the mouth-shaped auxiliary mounting block through an inner hexagonal bolt, the first loading block and the second loading block are mounted in a face-to-face manner, the two long positioning pins are taken out, the short positioning pins are respectively inserted into the through holes positioned in the middle of the two long positioning pins, and then the positioning and mounting of the extensometer are completed, the bayonet of the extensometer is fixed on two short fixed pins.
In particular, the two long positioning pins and the two short positioning pins are in clearance fit with the through holes.
Particularly, the top of the middle through hole of the mouth-shaped main mounting block and the top of the mouth-shaped auxiliary mounting block are respectively provided with a threaded hole for fixing a long positioning pin or a short positioning pin through an inner hexagon bolt, the axis of the threaded hole is perpendicular to and intersected with the axis of the middle through hole, and the distance between the two through holes on the mouth-shaped main mounting block and the mouth-shaped auxiliary mounting block is 30 mm.
Particularly, the mouth-shaped main mounting block and the mouth-shaped auxiliary mounting block are provided with threaded holes except for one side provided with the through hole.
Particularly, a clamping groove matched with the top end of the first loading block is formed at one end side of the inner wall of the main mounting block, which is close to the through hole.
The utility model provides a be used for tensile test extensometer installation device of sandwich structure tie, adopt two long locating pins to fix a position two installation pieces (mouthful shape owner installation piece promptly and mouthful vice installation piece of shape) between, lift two long locating pins off, insert the short locating pin in the through-hole of intermediate position respectively, the axiality between two short locating pins has been guaranteed, adopt two face contacts to realize the location installation in addition, the uniformity of two short fixed pin axial and loading piece translation displacement direction has been guaranteed, the unanimity of translation displacement direction between extensometer measuring displacement direction and the loading piece has been realized. The utility model provides an extensometer installation device's two short fixed pins's axiality precision is high, and the axis direction of two short fixed pins is less with the error of the translation displacement direction of loading piece, ensures the unanimity of translation displacement direction between extensometer measuring displacement direction and the loading piece, has realized the accurate measurement of the flat tensile deformation of sandwich structure.
[ description of the drawings ]
Fig. 1 is a schematic view of the installation and positioning of a test piece, a first loading block and a second loading block before an experiment of the extensometer installation device for a sandwich structure horizontal tension test of the present invention, wherein the test piece is not labeled and is positioned between the first loading block and the second loading block;
fig. 2 is a schematic structural view of the tensiometer mounting device for the sandwich structure horizontal tension test of the present invention after the test piece is mounted;
FIG. 3 is a schematic structural view of a mouth-shaped main mounting block in an extensometer mounting device for a sandwich structure horizontal tension test of the present invention;
fig. 4 is the utility model discloses a structural schematic diagram that is arranged in experimental extensometer installation device of sandwich structure horizontal drawing mouth shape auxiliary installation piece.
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings.
Referring to fig. 1-4, the present invention provides an extensometer installation device for a sandwich structure horizontal tension test, comprising: the mouth-shaped main mounting block 1, the mouth-shaped auxiliary mounting block 2, the first loading block 3, the second loading block 4, the two long positioning pins 5 and the two short positioning pins 6 are respectively and correspondingly arranged on the mouth-shaped main mounting block 1 and the mouth-shaped auxiliary mounting block 2, wherein one through hole 7 is positioned in the middle of the mouth-shaped main mounting block 1 and the mouth-shaped auxiliary mounting block 2, the mouth-shaped main mounting block 1 and the mouth-shaped auxiliary mounting block 2 are inserted into the through hole 7 through the two long positioning pins 5 for combined mounting, the first loading block 3 and the second loading block 4 are respectively in a T shape, the transverse end of the first loading block 3 is mounted on the inner wall of the mouth-shaped main mounting block 1 through an inner hexagonal bolt, the transverse end of the second loading block 4 is mounted on the inner wall of the mouth-shaped auxiliary mounting block 2 through an inner hexagonal bolt, the first loading block 3 and the second loading block 4 are mounted face to face, the two long positioning pins 5 are taken out, the through holes 7 positioned in the middle are respectively inserted into the short positioning, the positioning and installation of the extensometer installation device are completed, and the bayonets of the extensometer are fixed on the two short fixed pins.
In particular, in order to facilitate the installation of the two long positioning pins 5 and the two short positioning pins 6, the two long positioning pins 5 and the two short positioning pins 6 are in clearance fit with the through holes 7.
In particular, in order to fix two long positioning pins 5 or two short positioning pins 6 during installation, threaded holes (not marked in the figures) for fixing the long positioning pins 5 or the short positioning pins 6 through hexagon socket head cap screws are respectively formed in the top parts, located at the middle through holes 7, of the mouth-shaped main installation block 1 and the mouth-shaped auxiliary installation block 2, the axes of the threaded holes are perpendicular to and intersected with the axis of the through hole 7 at the middle position, and the distance between the two through holes 7 in the mouth-shaped main installation block 1 and the mouth-shaped auxiliary installation block 2 is 30 mm.
In particular, in order to better fix the first loading block 3 and the second loading block 4 and ensure the stable installation of the test piece, the main mounting block 1 and the auxiliary mounting block 2 are provided with threaded holes except for the side provided with the through hole 7.
Particularly, a clamping groove 8 which is matched with the top end of the first loading block 3 is formed in one side, close to the through hole 7, of the inner wall of the main mounting block, and the clamping groove 8 is used for positioning the first loading block to ensure that a combined body formed by the first loading block, the test piece and the second loading block is accurately mounted in the mouth-shaped main mounting block and the mouth-shaped auxiliary mounting block and prevent the combined body from shaking in the left-right direction in the mouth-shaped main mounting block and the mouth-shaped auxiliary mounting block (the direction of the combined body is described as shown in the figure), so that a good positioning effect is achieved on the combined body under the condition that the combined body is convenient to mount.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail by an embodiment.
The utility model provides a scale distance is 50mm, measuring range is 10 mm's conventional axial extensometer. The assembly process is as follows:
firstly, penetrating two long positioning pins into through holes of a mouth-shaped frame of two mounting blocks (namely a mouth-shaped main mounting block and a mouth-shaped auxiliary mounting block) respectively, and determining the distance between the mouth-shaped main mounting block and the mouth-shaped auxiliary mounting block according to the distance between a left loading block and a right loading block (namely a first loading block and a second loading block) of a test piece; then inserting a combination of the test piece, the first loading block and the second loading block into the inner frames of the mouth-shaped main mounting block and the mouth-shaped auxiliary mounting block of the device, and enabling the first loading block to be located in the clamping groove of the mouth-shaped main mounting block; the mouth-shaped main mounting block and the first loading block are relatively fixed by rotating the hexagon socket head cap bolts on the other three sides of the mouth-shaped main mounting block except the through hole 7 side; the inner hexagon bolts on the other three sides of the mouth-shaped auxiliary mounting block except the through hole 7 are finely adjusted, so that the mouth-shaped auxiliary mounting block and the second loading block are relatively fixed, and the two long positioning pins can rotate in the through hole 7; then, taking down the long positioning pin, respectively inserting short fixing pins into the middle through holes of the two mounting blocks, and fixing by using the inner hexagonal fixing bolt, namely completing the assembly of the extensometer mounting device; during the test, the bayonets of the conventional axial extensometer are fixed on two short fixing pins 5.
In the utility model discloses in, the inside casing length and the width of mouthful shape main installation piece are than the length and the width big 4mm of first loading piece, and thickness is little than first loading piece, has two through-holes on a direction of mouthful shape main installation piece, and the axial of through-hole is along the thickness direction of mouthful shape main installation piece, and the distance between two through-holes is 30mm, and one of them through-hole is in the main intermediate position of installing a width direction of mouthful shape. Two threaded holes are formed in the top of the side of the through hole of the mouth-shaped main mounting block, the axial axes of the threaded holes are perpendicular to and intersected with the axis of the through hole respectively, and the threaded holes are deep until the through hole. Three threaded holes are formed in the middle of the other three directions of the mouth-shaped main mounting block, the axial direction of each threaded hole is along the width direction and the length direction of the mouth-shaped frame mounting block, and each threaded hole is a through hole. The mouth-shaped auxiliary mounting block and the second loading block are identical to the mouth-shaped main mounting block and the first loading block.
The nominal diameter of all screw holes on two installation pieces that this embodiment provided is M6, and long locating pin and short fixed pin external diameter are 10mm, and the internal diameter of the through-hole on two installation pieces is 10mm, and long locating pin 13, short fixed pin 5 are clearance fit with the cooperation of through-hole 8. The length of the long positioning pin is 120mm, and the length of the short fixing pin is 60 mm.
The utility model discloses a two long locating pins come fixed mouthful shape owner installation piece, unload down long locating pin behind the position between the vice installation piece of mouth shape, later at mouthful shape owner installation piece, insert short fixed pin in the vice installation piece middle part through-hole of mouth shape, the axiality between two short fixed pins has been guaranteed, adopt two face contacts to realize the location installation in addition, the uniformity of two short fixed pin axial and loading piece translation displacement direction has been guaranteed, the uniformity of translation displacement direction between extensometer measuring displacement direction and the loading piece has been realized.
Claims (5)
1. A be used for sandwich structure level to draw experimental extensometer installation device which characterized in that includes: the mouth-shaped main mounting block (1), the mouth-shaped auxiliary mounting block (2), a first loading block (3), a second loading block (4), two long positioning pins (5) and two short positioning pins (6), wherein the mouth-shaped main mounting block (1) and the mouth-shaped auxiliary mounting block (2) are respectively and correspondingly provided with two through holes (7), one through hole (7) is positioned in the middle position of the mouth-shaped main mounting block (1) and the mouth-shaped auxiliary mounting block (2), the mouth-shaped main mounting block (1) and the mouth-shaped auxiliary mounting block (2) are inserted into the through holes (7) through the two long positioning pins (5) for combined mounting, the first loading block (3) and the second loading block (4) are respectively T-shaped, the transverse end of the first loading block (3) is mounted on the inner wall of the mouth-shaped main mounting block (1) through an inner hexagon bolt, the transverse end of the second loading block (4) is mounted on the inner wall of the mouth-shaped auxiliary mounting block (2) through an inner hexagon bolt, the first loading block (3) and the second loading block (4) are installed face to face, two long positioning pins (5) are taken out, the through holes (7) in the middle are respectively inserted into the short positioning pins (6), positioning and installation of the extensometer installation device are completed, and bayonets of the extensometer are fixed on the two short positioning pins.
2. The extensometer mounting device for sandwich structure horizontal tensile test is characterized in that the two long positioning pins (5) and the two short positioning pins (6) are in clearance fit with the through holes (7).
3. The extensometer mounting device for the sandwich structure horizontal tensile test is characterized in that the mouth-shaped main mounting block (1) and the mouth-shaped auxiliary mounting block (2) are respectively provided with a threaded hole for fixing a long positioning pin (5) or a short positioning pin (6) through an inner hexagonal bolt at the top of a middle through hole (7), the axis of the threaded hole is perpendicular to and intersected with the axis of the through hole (7) at the middle position, and the distance between the two through holes (7) on the mouth-shaped main mounting block (1) and the mouth-shaped auxiliary mounting block (2) is 30 mm.
4. The extensometer mounting device for the sandwich structure horizontal tensile test is characterized in that the main mounting block (1) and the auxiliary mounting block (2) are provided with threaded holes except the side provided with the through hole (7).
5. The extensometer mounting device for the sandwich structure horizontal tension test is characterized in that one side of the inner wall of the main mounting block, which is close to the through hole (7), is provided with a clamping groove (8) which is matched with the top end of the first loading block (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021504074.6U CN212932152U (en) | 2020-07-27 | 2020-07-27 | Be used for horizontal tensile test extensometer installation device of sandwich structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021504074.6U CN212932152U (en) | 2020-07-27 | 2020-07-27 | Be used for horizontal tensile test extensometer installation device of sandwich structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212932152U true CN212932152U (en) | 2021-04-09 |
Family
ID=75332362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021504074.6U Active CN212932152U (en) | 2020-07-27 | 2020-07-27 | Be used for horizontal tensile test extensometer installation device of sandwich structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212932152U (en) |
-
2020
- 2020-07-27 CN CN202021504074.6U patent/CN212932152U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103267642B (en) | A kind of motor power frame being applicable to measurement 1N to 300N thrust | |
| CN103196748A (en) | Comprehensive test experiment platform for orthodontic parodontium mechanical property | |
| CN212932152U (en) | Be used for horizontal tensile test extensometer installation device of sandwich structure | |
| CN203249614U (en) | Compression deformation measuring device | |
| CN202361962U (en) | Total run-out measuring instrument for rotor | |
| CN102175522B (en) | Displacement transmitting device for clamping extensometer | |
| CN210413223U (en) | Combined tool for welding fixture and measuring support | |
| CN109387430A (en) | A kind of anti-flexion device and its operating method for steel plate load test | |
| CN201917492U (en) | Displacement transfer device used for clamping extensometer | |
| CN111981941B (en) | Device and method for detecting space precision of radiator fixing support | |
| CN211653339U (en) | Liquid crystal display test fixture | |
| CN108871161B (en) | Detection tool assembly for detecting angle of small plane and use method thereof | |
| CN203053808U (en) | Labeled block fixing frame for calibrating test sample measuring mechanism of tensile testing machine | |
| CN212963225U (en) | Outer diameter measuring clamp | |
| CN217097514U (en) | Torque wrench calibration device | |
| CN216847241U (en) | Self-positioning auxiliary device for bending strength measurement | |
| CN216718156U (en) | Testing arrangement is used in adhesive production | |
| CN221088720U (en) | PCF examines a positioner | |
| CN215004789U (en) | Fixed position frock | |
| CN212539632U (en) | Tool for judging in-place assembly of gas turbine rotor and static axial loading tool | |
| CN216634090U (en) | Multi-rib-strip wallboard appearance inspection tool | |
| CN217604846U (en) | Detection tool for full detection of outer surface and inner hole of shifting block | |
| CN211840480U (en) | Electrode device for die machining | |
| CN220145732U (en) | Tool clamp | |
| CN219495070U (en) | Tool for measuring diameter of long-nose cone inner hole of planet carrier of wind power gear box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240117 Address after: 210012 First Floor, South Building, Chuangzhi Building, No.1 Xichun Road, Yuhuatai District, Nanjing City, Jiangsu Province, China -046 Patentee after: Nanjing Vigila Intelligent Technology Co.,Ltd. Address before: 215505 Building 1, No.2, Jianye Road, high tech Industrial Park, Changshu Economic and Technological Development Zone, Suzhou City, Jiangsu Province Patentee before: CHANGSHU ZHENGHAO ELECTRONIC TECHNOLOGY CO.,LTD. |