CN107589012B - Clamping device for tensile sample after-break measurement and use method thereof - Google Patents
Clamping device for tensile sample after-break measurement and use method thereof Download PDFInfo
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- CN107589012B CN107589012B CN201710963655.2A CN201710963655A CN107589012B CN 107589012 B CN107589012 B CN 107589012B CN 201710963655 A CN201710963655 A CN 201710963655A CN 107589012 B CN107589012 B CN 107589012B
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- butterfly nut
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The utility model discloses a clamping device for measuring a tensile sample after fracture and a use method thereof. The first stud and the second stud each have opposite top and bottom ends. The bottom ends of the first stud and the second stud are respectively arranged on the bottom plate. The first nut and the first spring are installed on the first stud, and the first spring is located on the upper side of the first nut. The second nut and the second spring are arranged on the second stud, and the second spring is positioned on the upper side of the second nut. The pressing plate is provided with a first through hole and a second through hole respectively. The top end of the first stud passes through the first through hole and then is matched with the first butterfly nut. The top end of the second stud passes through the second through hole and then is matched with the second butterfly nut. The clamping device is simple and convenient to operate, reduces labor intensity and improves working efficiency.
Description
[ field of technology ]
The utility model relates to the technical field of measurement, in particular to a clamping device for measuring a tensile sample after fracture and a use method thereof.
[ background Art ]
The Chinese patent publication No. CN203745301U discloses an auxiliary device for measuring the fracture of a tensile sample, which comprises a sliding frame, a sliding block, a spring, a positioning rod and a stop block, wherein one end of the sliding frame is fixedly provided with the stop block, the other end of the sliding frame is fixedly connected with the positioning rod, the sliding block is in sliding connection with the sliding frame, and the positioning rod is provided with the spring. The V-shaped sliding block is used for sliding and supporting the sample, the stud and the spring are adjusted, two ends of the sample are respectively abutted against the stop block and the baffle plate to be axially fixed, the V-shaped sliding block is used for supporting the breaking position of the sample, and then the measuring operation is completed. The V-shaped sliding block with a given angle supports samples with different diameter changing conditions and different breaking positions after breaking, so that the center lines of two sections of samples are difficult to be positioned at the horizontal position, the accuracy of horizontal matching is difficult to ensure, the accuracy of detection is influenced, and the operation is inconvenient. And the sample in the horizontal position is supported by the V-shaped sliding block at the fracture matching position, so that the measurement operation of the minimum necking diameter at the fracture matching position is limited, and the measurement quality is influenced. In addition, the V-shaped sliding block shields the sight line, and also influences the overall observation and adjustment of the sample matching and the central axis alignment quality, and also influences the accuracy of final measurement.
Therefore, it is necessary to provide a new auxiliary device for measuring after breaking of the tensile test specimen to overcome the above-mentioned drawbacks.
[ utility model ]
The utility model aims to provide a clamping device for measuring a tensile sample after fracture, which has better measurement accuracy.
The aim of the utility model is achieved by the following technical scheme: the utility model provides a tensile sample is clamping device for measurement after fracture, clamping device includes bottom plate, first double-screw bolt, second double-screw bolt, first nut, second nut, first spring, second spring, first butterfly nut, second butterfly nut and clamp plate, first double-screw bolt and second double-screw bolt all have relative top and bottom, the bottom of first double-screw bolt and second double-screw bolt is installed respectively in the bottom plate, first nut and first spring are installed on first double-screw bolt and first spring is located first nut upside, second nut and second spring are installed on second double-screw bolt and second spring is located second nut upside, the clamp plate is equipped with first through-hole and second through-hole respectively, the top of first double-screw bolt cooperates with first butterfly nut after passing first through-hole, the top of second double-screw bolt cooperates with second butterfly nut after passing the second through-hole.
Further, a rubber backing plate is arranged at the central position of the upper end of the bottom plate.
Further, a rubber pad is arranged at the central position of the lower end of the pressing plate.
Further, the first butterfly nut and the second butterfly nut respectively lean against the upper side of the pressing plate.
Further, the first spring and the second spring are respectively abutted against the lower side of the pressing plate.
Further, the first nut abuts against the first spring, and the second nut abuts against the second spring.
Further, the first stud and the second stud are arranged in parallel.
The purpose of the utility model is realized by the following technical scheme II: the application method of the clamping device for the tensile sample after-break measurement comprises the following steps: (1) Vertically placing the two sections of samples which are vertically connected after being broken on a rubber backing plate in the center of the bottom plate; (2) Alternately screwing a first butterfly nut with a first spring support and a second butterfly nut with a second spring support respectively according to the fracture matching and the central line alignment conditions of the two sections of broken samples; (3) Carefully observing the matching of the fracture of the two sections of broken samples and the alignment condition of the center line, and alternately adjusting the screwing degree of the first butterfly nut and the second butterfly nut according to the requirement; (4) And finally, screwing the first butterfly nut and the second butterfly nut to position the broken sample.
Compared with the prior art, the utility model has the following beneficial effects: according to the clamping device, the fracture joint and clamping of the two sections of broken samples are completed along the vertical direction, so that the centers of gravity of the two sections of broken samples are overlapped on a vertical line, the balance of the vertical overlapping of the centers of gravity is convenient to adjust the vertical joint of the fracture joint of the samples and the vertical alignment of the axial lead, and the accuracy of a final measurement result is guaranteed; and when the broken sample is adjusted, the whole process of the sample state is not shielded, so that the omnibearing observation is convenient, the measurement of the minimum necking diameter and the broken gauge length is not limited, and the accuracy of the measurement result is ensured.
[ description of the drawings ]
FIG. 1 is a front view of a clamping device for measuring a tensile specimen according to the present utility model after breaking.
Fig. 2 is a top view of the tensile specimen of fig. 1, shown broken away, showing a clamping device for measurement.
The utility model will be further described in the following detailed description in conjunction with the above-described figures.
[ detailed description ] of the utility model
Referring to fig. 1 to 2, the utility model discloses a clamping device for measuring a tensile sample after fracture, which comprises a bottom plate 1, a first stud 2, a second stud 11, a first nut 3, a second nut 10, a first spring 4, a second spring 9, a first butterfly nut 6, a second butterfly nut 8 and a pressing plate 5. A rubber backing plate 12 is arranged at the central position of the upper end of the bottom plate 1. A rubber pad 7 is also arranged at the central position of the lower end of the pressing plate 5. The first stud 2 and the second stud 11 are arranged in parallel and are provided with a top end and a bottom end, respectively. The bottom ends of the first stud 2 and the second stud 11 are respectively arranged on the bottom plate 1. The first nut 3 and the first spring 4 are mounted on the first stud 2 and the first spring 4 is located on the upper side of the first nut 3. The second nut 10 and the second spring 9 are mounted on the second stud 11 and the second spring 9 is located on the upper side of the second nut 10. The pressing plate 5 is provided with a first through hole and a second through hole respectively. The top end of the first stud 2 passes through the first through hole and then is matched with the first butterfly nut 6. The top end of the second stud 11 passes through the second through hole and then is matched with the second butterfly nut 8. The first butterfly nut 6 and the second butterfly nut 8 respectively lean against the upper side of the pressing plate 5. The first springs 4 and the second springs 9 respectively abut against the lower side of the pressing plate 5. The first nut 3 abuts against the first spring 4. Said second nut 10 abuts against the second spring 9.
The two sections of the vertical matched cylindrical samples after being broken are vertically placed on a rubber backing plate 12 in the center of the bottom plate 1, so that the lower end branch point for adjusting and clamping is established. According to the fracture matching and the central line alignment condition of the two broken samples, the first butterfly nut 6 with the first spring 4 and the second butterfly nut 8 with the second spring 9 are respectively and alternately screwed, so that the pressing plate 5 with the rubber pad 7 gradually presses the upper end surface of the sample to establish an upper end branch point for adjusting and clamping. And carefully observing the alignment conditions of the fracture joint and the center line of the two sections of broken samples, alternately adjusting the screwing degree of the first butterfly nut 6 and the second butterfly nut 8 according to needs, finally enabling the fracture joint position of the samples to be accurate, adjusting the center line of the broken two sections of samples on a vertical line, and finally screwing the first butterfly nut 6 and the second butterfly nut 8 to position the broken samples. The sample is clamped and positioned between the bottom plate 1 and the pressing plate 5 through the upper supporting point and the lower supporting point, and the accurate measurement of the data is finally completed.
The foregoing is only some, but not all, embodiments of the present utility model, and any equivalent modifications of the technical solution of the present utility model will be covered by the claims of the present utility model by a person of ordinary skill in the art from reading the present specification.
Claims (2)
1. Clamping device for tensile specimen after-break measurement, characterized in that: the clamping device comprises a bottom plate, a first stud, a second stud, a first nut, a second nut, a first spring, a second spring, a first butterfly nut, a second butterfly nut and a pressing plate, wherein the first stud and the second stud are respectively provided with a top end and a bottom end which are opposite, the bottom ends of the first stud and the second stud are respectively arranged on the bottom plate, the first nut and the first spring are arranged on the first stud and are positioned on the upper side of the first nut, the second nut and the second spring are arranged on the second stud and are positioned on the upper side of the second nut, the pressing plate is respectively provided with a first through hole and a second through hole, the top end of the first stud is matched with the first butterfly nut after passing through the first through hole, and the top end of the second stud is matched with the second butterfly nut after passing through the second through hole;
a rubber backing plate is arranged at the central position of the upper end of the bottom plate;
a rubber pad is arranged at the central position of the lower end of the pressing plate;
the first stud and the second stud are arranged in parallel;
the first butterfly nut and the second butterfly nut respectively lean against the upper side of the pressing plate;
the first spring and the second spring are respectively abutted against the lower side of the pressing plate;
the first nut abuts against the first spring, and the second nut abuts against the second spring.
2. A method of using the tensile specimen post-break measurement clamp device of claim 1, comprising the steps of:
(1) Vertically placing the two sections of samples which are vertically connected after being broken on a rubber backing plate in the center of the bottom plate;
(2) Alternately screwing a first butterfly nut with a first spring support and a second butterfly nut with a second spring support respectively according to the fracture matching and the central line alignment conditions of the two sections of broken samples;
(3) Carefully observing the matching of the fracture of the two sections of broken samples and the alignment condition of the center line, and alternately adjusting the screwing degree of the first butterfly nut and the second butterfly nut according to the requirement;
(4) And finally, screwing the first butterfly nut and the second butterfly nut to position the broken sample.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710963655.2A CN107589012B (en) | 2017-10-17 | 2017-10-17 | Clamping device for tensile sample after-break measurement and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710963655.2A CN107589012B (en) | 2017-10-17 | 2017-10-17 | Clamping device for tensile sample after-break measurement and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107589012A CN107589012A (en) | 2018-01-16 |
| CN107589012B true CN107589012B (en) | 2023-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710963655.2A Active CN107589012B (en) | 2017-10-17 | 2017-10-17 | Clamping device for tensile sample after-break measurement and use method thereof |
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| Country | Link |
|---|---|
| CN (1) | CN107589012B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB469302A (en) * | 1936-11-25 | 1937-07-22 | Hasse & Wrede Gmbh | Improvements in and relating to work-holding mandrels for lathes and like machine tools |
| DD155648A1 (en) * | 1980-12-22 | 1982-06-23 | Dieter Reinhold | TRANSMISSION CIRCUIT ARRANGEMENT FOR DAMAGED LOADING AND RESET PROCEDURE MOVEMENT |
| US5067696A (en) * | 1987-09-18 | 1991-11-26 | Morley Allen D | Device for clamping two metal objects which are to be welded together |
| CN200950106Y (en) * | 2006-09-05 | 2007-09-19 | 中国铝业股份有限公司 | Clamping device for measuring metallic material stretching gauge length |
| CN102230864A (en) * | 2011-04-01 | 2011-11-02 | 上海电气核电设备有限公司 | Clamping apparatus for measuring percentage elongation after fracture and shrinkage rate on cross section of columnar tensile sample |
| CN203101175U (en) * | 2013-02-27 | 2013-07-31 | 武汉钢铁(集团)公司 | Fastening device for measuring percentage elongation after fracture and percentage reduction of area of test sample to be measured |
| CN203286949U (en) * | 2013-05-13 | 2013-11-13 | 中国石油天然气集团公司 | Auxiliary measurement tool |
| CN106644772A (en) * | 2017-02-20 | 2017-05-10 | 中核(天津)科技发展有限公司 | Metal material elongation detection positioning device |
| CN207456938U (en) * | 2017-10-17 | 2018-06-05 | 中钢集团西安重机有限公司 | A kind of tensile sample is had no progeny measurement clamping device |
-
2017
- 2017-10-17 CN CN201710963655.2A patent/CN107589012B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB469302A (en) * | 1936-11-25 | 1937-07-22 | Hasse & Wrede Gmbh | Improvements in and relating to work-holding mandrels for lathes and like machine tools |
| DD155648A1 (en) * | 1980-12-22 | 1982-06-23 | Dieter Reinhold | TRANSMISSION CIRCUIT ARRANGEMENT FOR DAMAGED LOADING AND RESET PROCEDURE MOVEMENT |
| US5067696A (en) * | 1987-09-18 | 1991-11-26 | Morley Allen D | Device for clamping two metal objects which are to be welded together |
| CN200950106Y (en) * | 2006-09-05 | 2007-09-19 | 中国铝业股份有限公司 | Clamping device for measuring metallic material stretching gauge length |
| CN102230864A (en) * | 2011-04-01 | 2011-11-02 | 上海电气核电设备有限公司 | Clamping apparatus for measuring percentage elongation after fracture and shrinkage rate on cross section of columnar tensile sample |
| CN203101175U (en) * | 2013-02-27 | 2013-07-31 | 武汉钢铁(集团)公司 | Fastening device for measuring percentage elongation after fracture and percentage reduction of area of test sample to be measured |
| CN203286949U (en) * | 2013-05-13 | 2013-11-13 | 中国石油天然气集团公司 | Auxiliary measurement tool |
| CN106644772A (en) * | 2017-02-20 | 2017-05-10 | 中核(天津)科技发展有限公司 | Metal material elongation detection positioning device |
| CN207456938U (en) * | 2017-10-17 | 2018-06-05 | 中钢集团西安重机有限公司 | A kind of tensile sample is had no progeny measurement clamping device |
Non-Patent Citations (1)
| Title |
|---|
| 高精度数显试样标距划线与测量仪的研制;王建国;王连庆;王红缨;;理化检验(物理分册)(05);全文 * |
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| CN107589012A (en) | 2018-01-16 |
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