CN210037415U - Tensile sample clamping and centering device - Google Patents
Tensile sample clamping and centering device Download PDFInfo
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- CN210037415U CN210037415U CN201920637767.3U CN201920637767U CN210037415U CN 210037415 U CN210037415 U CN 210037415U CN 201920637767 U CN201920637767 U CN 201920637767U CN 210037415 U CN210037415 U CN 210037415U
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Abstract
A tensile sample clamping and centering device comprises a ruler base, a horizontal push ruler and a reference sliding ruler, wherein two vertical reference main rulers are symmetrically arranged on the ruler base from top to bottom, one reference sliding ruler is sleeved on each reference main ruler, one side of each reference sliding ruler is in sliding fit with the corresponding reference main ruler, and the other side of each reference sliding ruler extends horizontally; the ruler base middle part is equipped with horizontal spout, and the flat push chi passes horizontal spout and extends to the both sides of horizontal spout, sets gradually first slider, second slider and third slider on the same extension side of flat push chi and benchmark slide rule, and the spring passes the second slider and is connected first slider and third slider. The utility model discloses the device is equipped with the benchmark slide rule that can the accurate determination sample upper and lower clamping position with the flat push ruler of accurate determination sample central line and clamp splice central line coincidence. Adopt the utility model discloses, can solve the experimental data error that artifical range estimation centre gripping sample caused, ensure the accuracy of testing data and reduce the probability of taking place of useless sample.
Description
Technical Field
The utility model relates to a material performance detects uses auxiliary device, especially tensile sample centre gripping centering device.
Background
When the material is subjected to a tensile test, a proper clamping block is selected according to the type of a sample and the size of a sample clamping part, and a proper baffle plate is arranged. During detection, the test sample is clamped by 3/4 with the length being equal to the length of the clamping block, detection is started, and the test state is entered until the test sample is broken. And taking down the sample, firstly observing the fracture position of the sample, if the fracture position is at the clamping position of the clamping block, determining that the sample is invalid, if the fracture position is not at the clamping position, measuring the maximum elongation Lu by using a vernier caliper, inputting parameters after fracture, and recording test data. The clamping position of the sample in the tensile test has certain influence on each index parameter of the mechanical property. At present, a mechanical property tensile testing machine is not provided with a special sample clamping device, and clamping samples are manually and visually clamped at clamping positions and sample verticality, so that clamping errors exist, and the accuracy of mechanical property indexes is influenced. The first method is that the center line of a sample is not coincident with the center line of a clamping block, so that the resolution of force is formed, the testing force value is increased, and the testing accuracy is influenced; the other type is that the clamping amount of the upper clamping block and the lower clamping block is different, especially the small clamping amount at one end easily causes the sample fracture position to deviate to the other end, which affects the accuracy of the measured value, even the sample can be fractured in the clamping blocks, which causes the sample to be wasted and delays the reporting time of the inspection data.
SUMMERY OF THE UTILITY MODEL
The utility model is used for solve prior art's drawback, provide a tensile sample centre gripping centering device of test data error, the accuracy of ensureing to detect data that solve artifical range estimation centre gripping and cause.
The problem of the utility model is realized with following technical scheme:
a tensile sample clamping and centering device comprises a ruler base, a horizontal push ruler and a reference sliding ruler, wherein two vertical reference main rulers are symmetrically arranged on the ruler base from top to bottom, one reference sliding ruler is sleeved on each reference main ruler, one side of each reference sliding ruler is in sliding fit with the corresponding reference main ruler, and the other side of each reference sliding ruler extends horizontally; the ruler base middle part is equipped with horizontal spout, and the flat push chi passes horizontal spout and extends to the both sides of horizontal spout, sets gradually first slider, second slider and third slider on the same extension side of flat push chi and benchmark slide rule, and the spring passes the second slider and is connected first slider and third slider.
According to the tensile sample clamping and centering device, the reference main ruler is provided with the size scale line, and the end plane of the extending end of the reference sliding ruler and the horizontal plane close to the horizontal push ruler form mutually vertical reference planes.
According to the tensile sample clamping and centering device, the horizontal pushing ruler is provided with the size scribed line, the ruler seat is provided with the horizontal pushing ruler fastening screw, and the end part of the horizontal pushing ruler fastening screw is in contact with and presses the horizontal pushing ruler.
In the tensile sample clamping and centering device, one end of each reference sliding ruler is respectively provided with a sliding ruler fastening screw.
According to the tensile sample clamping and centering device, the first sliding block is provided with the push button, and the second sliding block is provided with the sliding block fastening screw.
According to the tensile sample clamping and centering device, the number of the springs is two, and the two springs are symmetrically arranged on the upper side and the lower side of the horizontal push ruler.
The utility model discloses design a centering device to solving the unsafe problem of artifical range estimation of tensile sample centre gripping, the device is equipped with the benchmark slide bar that can the accurate determination sample upper and lower clamping position to and the horizontal sliding ruler of accurate determination sample central line and clamp splice central line coincidence. Adopt the utility model discloses, can solve the test data error that artifical range estimation centre gripping sample caused, ensure the accuracy of detected data, stop to cause the sample fracture in the clamp splice because of sample one end centre gripping volume is few, effectively reduce and reduce useless appearance and take place the probability.
Drawings
The present invention will be further explained with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic view of the usage state of the present invention.
The reference numbers in the figures are: 1. the device comprises a reference main ruler, 2, a sliding ruler fastening screw, 3, a reference sliding ruler, 4, a horizontal sliding ruler, 5, a ruler base, 6, a horizontal sliding ruler fastening screw, 7, a first sliding block, 8, a spring, 9, a second sliding block, 10, a third sliding block, 11, a transverse sliding chute, 12, a push button, 13, a sliding block fastening screw, 14, an upper clamping block, 15, a lower clamping block, 16 and a sample.
Detailed Description
Referring to fig. 1, the utility model comprises a ruler base 5, a horizontal sliding ruler 4 and a reference sliding ruler 3. Two reference main rulers 1 in the vertical direction are symmetrically arranged on the upper side and the lower side of the ruler base, and each reference main ruler is provided with a dimension scale line. The two reference sliding rulers are arranged, one side of each reference sliding ruler is respectively sleeved on one reference main ruler and is in sliding fit with the reference main ruler, the other side of each reference sliding ruler is perpendicular to the reference main ruler and extends towards the horizontal direction, and an end plane of an extending end of each reference sliding ruler and a horizontal plane close to the horizontal pushing ruler form mutually perpendicular reference planes. Namely: the vertical end surface of the reference sliding ruler positioned at the upper side and the lower side plane form a reference surface; the vertical end surface of the reference sliding ruler positioned on the lower side and the upper side plane form a reference surface, and the end planes of the two reference sliding rulers are positioned on the same vertical plane. And one end of each reference sliding ruler, which is close to the main reference ruler, is respectively provided with a sliding ruler fastening screw 2 capable of fixing the position of the reference sliding ruler. The middle part of the ruler seat is provided with a transverse sliding chute 11, the horizontal push ruler penetrates through the transverse sliding chute and horizontally extends towards two sides of the transverse sliding chute, and the horizontal push ruler can horizontally move relative to the transverse sliding chute. Set gradually first slider 7, second slider 9 and third slider 10 on the same extension side of flat push chi and benchmark slide rule, three slider all with flat push chi sliding fit, spring 8 passes the second slider, first slider and third slider are connected respectively at the spring both ends, the spring adopts two, two spring symmetries set up the upper and lower side at the flat push chi. The horizontal pushing ruler is provided with a size scale line. The ruler base is provided with a flat push ruler fastening screw 6 for fixing the position of the flat push ruler. The first sliding block is provided with a push button 12, and the second sliding block is provided with a sliding block fastening screw 13.
Referring to fig. 1 and 2, the utility model is used as follows: the right side surface of the second sliding block 9 and the vertical reference surfaces of the two reference sliding rulers are adjusted to be in a vertical plane, the initial position of the horizontal sliding ruler is determined, and then the position of the second sliding block is fixed through a sliding block fastening screw 13. The pushing button 12 is pressed to push the first slide block 7, the first slide block pushes the third slide block to be opened through the spring, the center position of the sample 16 is clamped between the second slide block and the third slide block, the pushing button is loosened, and the sample is clamped between the second slide block and the third slide block through the elastic force of the spring. The clamping amount is calculated according to 3/4 where the sample clamping length is the clamp block length (the lower surface of the upper reference slide is zero point, and the upper surface of the lower reference slide is zero point), and the positions of the two reference slides are adjusted according to the calculated clamping amount, so that the positions of the two reference slides are fixed. The vertical reference surfaces of the upper reference sliding ruler and the lower reference sliding ruler respectively abut against the upper clamping block 14 and the lower clamping block 15, and the horizontal reference surfaces of the upper reference sliding ruler and the lower reference sliding ruler are respectively aligned with the lower surface of the upper clamping block and the upper surface of the lower clamping block; and (3) pushing the horizontal push ruler to the right until the sample is pushed to the center position of the testing machine according to the scribed line of the horizontal push ruler, wherein the central position push amount is (the width of the clamping block-the width of the sample)/2, and then fixing the position of the horizontal push ruler. And adjusting the equipment beam to enable the upper and lower clamping positions to be consistent, and then clamping, so that the sample is accurately clamped by the equipment. And (5) pushing the push button to the right, taking down the device, and starting to perform a tensile test.
The samples with the same specification can be directly used without readjustment, and the samples with different specifications need to be newly adjusted according to the process.
Claims (6)
1. The utility model provides a tensile sample centre gripping centering device which characterized in that: the ruler comprises a ruler base (5), a horizontal sliding ruler (4) and a reference sliding ruler (3), wherein two vertical reference main rulers (1) are symmetrically arranged on the ruler base from top to bottom, one reference sliding ruler is sleeved on each reference main ruler, one side of each reference sliding ruler is in sliding fit with the corresponding reference main ruler, and the other side of each reference sliding ruler extends horizontally; the ruler seat middle part is equipped with horizontal spout (11), and the flat push chi passes horizontal spout and extends to the both sides of horizontal spout, sets gradually first slider (7), second slider (9) and third slider (10) on the same extension side of flat push chi and benchmark slide chi, and spring (8) pass the second slider and are connected first slider and third slider.
2. The tensile specimen holding and centering device of claim 1, wherein: the main reference ruler is provided with a size scale line, and an end plane of the extending end of the reference sliding ruler and a horizontal plane close to the horizontal push ruler form mutually vertical reference planes.
3. The tensile specimen holding and centering device of claim 2, wherein: the horizontal push ruler is provided with a size scale line, the ruler seat is provided with a horizontal push ruler fastening screw (6), and the end part of the horizontal push ruler fastening screw is contacted with the horizontal push ruler.
4. The tensile specimen holding and centering device of claim 3, wherein: one end of each reference sliding ruler is respectively provided with a sliding ruler fastening screw (2).
5. The tensile specimen holding and centering device of claim 4, wherein: the first sliding block is provided with a push button (12), and the second sliding block is provided with a sliding block fastening screw (13).
6. The tensile specimen holding and centering device of claim 5, wherein: the springs are arranged in two numbers, and the two springs are symmetrically arranged on the upper side and the lower side of the horizontal push ruler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920637767.3U CN210037415U (en) | 2019-05-07 | 2019-05-07 | Tensile sample clamping and centering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920637767.3U CN210037415U (en) | 2019-05-07 | 2019-05-07 | Tensile sample clamping and centering device |
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| Publication Number | Publication Date |
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| CN210037415U true CN210037415U (en) | 2020-02-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920637767.3U Active CN210037415U (en) | 2019-05-07 | 2019-05-07 | Tensile sample clamping and centering device |
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| CN (1) | CN210037415U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113702180A (en) * | 2021-08-13 | 2021-11-26 | 山东钢铁集团日照有限公司 | Initial accurate accuse position isolated plant of tensile properties test |
| CN117168968A (en) * | 2023-10-13 | 2023-12-05 | 江阴济化新材料有限公司 | Performance detection method and device for plastic particle production |
-
2019
- 2019-05-07 CN CN201920637767.3U patent/CN210037415U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113702180A (en) * | 2021-08-13 | 2021-11-26 | 山东钢铁集团日照有限公司 | Initial accurate accuse position isolated plant of tensile properties test |
| CN117168968A (en) * | 2023-10-13 | 2023-12-05 | 江阴济化新材料有限公司 | Performance detection method and device for plastic particle production |
| CN117168968B (en) * | 2023-10-13 | 2024-02-27 | 江阴济化新材料有限公司 | Performance detection method and device for plastic particle production |
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