CN201803899U - Clamp for high-temperature tensile test of thin plate - Google Patents
Clamp for high-temperature tensile test of thin plate Download PDFInfo
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- CN201803899U CN201803899U CN2010205223766U CN201020522376U CN201803899U CN 201803899 U CN201803899 U CN 201803899U CN 2010205223766 U CN2010205223766 U CN 2010205223766U CN 201020522376 U CN201020522376 U CN 201020522376U CN 201803899 U CN201803899 U CN 201803899U
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- 238000009864 tensile test Methods 0.000 title abstract description 5
- 238000012360 testing method Methods 0.000 claims abstract description 40
- 230000008878 coupling Effects 0.000 claims description 13
- 238000010168 coupling process Methods 0.000 claims description 13
- 238000005859 coupling reaction Methods 0.000 claims description 13
- 230000007704 transition Effects 0.000 claims description 13
- 239000007787 solid Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 10
- 239000002184 metal Substances 0.000 abstract 1
- 238000012545 processing Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Abstract
The utility model provides a clamp for a sheet high-temperature tensile test, which mainly comprises an automatic aligning connecting nut (1), a connecting shaft (3) and a clamp main body (5), wherein one end of the connecting shaft (3) is sleeved with an automatic aligning shaft sleeve (2) and is connected with the automatic aligning connecting nut (1), and the other end is connected with the clamp main body (5); the clamp body (5) is provided with a recessed area extending backwards from the front surface, the shape and the size of the recessed area are basically the same as the end of a standard sample, sliding grooves (51) are arranged on two sides of the clamp body (5), and a cover plate (6) capable of moving up and down is arranged in front of the clamp body through the sliding grooves (51); a thickness centering screw (9) is arranged behind the clamp main body (5), and a fixing screw (7) is arranged on the cover plate (6). The utility model provides an additional deformation problem that the sheet metal sample produced in high temperature tensile test process, guarantee sample and tensile test machine axiality, sample thickness to the accuracy of neutrality, test result, the security of testing process.
Description
Technical field
The utility model relates to the mechanical test equipment of metal material, relates to a kind of thin plate high temperature tension test anchor clamps specifically.
Background technology
High temperature tension test mainly is performance index such as the tensile strength of evaluation metal material when being higher than room temperature, yield strength, elongation after fracture, reduction of area, and the instrument etc. that installs electric tube furnace and measurement and control temperature on the ordinary test machine additional is carried out this type of test.Implement high temperature tension test for the sheet material of thickness 〉=6mm, the circular cross section sample that serial screw threads such as M16, M12, M8, M6 are processed at the bar two ends.Then be processed into and respectively have one in two ends for the thin plate of thickness≤3mm
The rectangular cross section sample 80 of 8 pin-and-hole (being called for short old sample) is implemented high temperature tension test, as shown in Figure 6.Adopt sample shown in Figure 6 80 to implement test following shortcoming arranged:
Must guarantee two pin-and-holes when 1, processing this sample on the sample center line, the processing sample difficulty is very big.
When 2, doing experiment, two pins are inserted respectively in the upper and lower pin-and-hole of sample.Because the pin distortion makes very trouble of sample loading and unloading under the high temperature.
3, sample pin-and-hole place unavoidably is out of shape in the high temperature tension test process, and particularly thin plate so just is incorporated into additional deformation in the stress strain curve, certainly will be influential to stretch test result, influence the reliability and the accuracy of test figure.
The utility model content
The purpose of this utility model is to provide a kind of thin plate high temperature tension test anchor clamps, solve the additional deformation problem that the thin plate sample produces in the high temperature tension test process, guarantee the security of sample and cupping machine right alignment, sample thickness neutrality, accuracy of experimental results, process of the test.
The utility model adopts high temperature rectangular cross section sample (being called for short new sample) shown in Figure 7, this sample and room temperature rectangular cross section sample are just the same, be convenient to processing, and can additional deformation be incorporated in the stress strain curve, thereby the accuracy of warranty test data and reliability because of the distortion of sample pin-and-hole place.Based on simple, the easy to operate thin plate high temperature tension test anchor clamps of this project organization.
A kind of thin plate high temperature tension test mainly comprises automatic aligning attaching nut, coupling shaft, jig main body with anchor clamps, and an end of coupling shaft is with the automatic aligning axle sleeve and is connected with the automatic aligning attaching nut, and the other end is connected with jig main body; Jig main body is provided with a sunk area that extends back from front surface, this regional shape and size are basic identical with the end of standard sample, the jig main body both sides are provided with sliding tray, in the front of jig main body a cover plate moving up and down are installed by sliding tray; A thickness centering screw is installed in back at jig main body, and a gib screw is installed on the cover plate.Front end at thickness centering screw and gib screw passes through respectively centre bearer and solid bearing are installed thickness to cover plate and securing cover plate.
The right alignment of anchor clamps and sample and cupping machine when guaranteeing to test, the automatic aligning axle sleeve adopts spherical the connection with the automatic aligning attaching nut.The degree of depth of jig main body sunk area is 2/3～4/5 of a jig main body thickness.
The transition arcs place produces stress and concentrates to break and cause test failure in the transition arcs place when avoiding testing, and the outlet size of jig main body sunk area and sample transition arcs size fit like a glove.
The utility model adopts the rectangular cross section tensile sample of tensile test at room temperature standard, avoids the pin-and-hole place distortion and cause the complexity and the processing difficulties of trial curve distortion, sample loading and unloading in the high temperature tension test process of traditional sample.Adopt the spherical right alignment that connects anchor clamps, sample and cupping machine when having guaranteed test.The outlet size of jig main body sunk area and sample transition arcs size fit like a glove, and the transition arcs place produces stress and concentrates and break and cause test failure in the transition arcs place when having avoided test.Adopt the thickness centralising device to guarantee that sample sample axis in drawing process overlaps with line of action of force, maximum error reaches 0.1mm.Adopt transition fit to make scattered part become parts, and convert the circular motion of screw thread to rectilinear motion, convenient location, clamping sample.Cover plate can move up and down in the sliding tray of jig main body, thereby has guaranteed the facility of loading and unloading.Solve the additional deformation problem that the thin plate sample produces in the high temperature tension test process, guarantee the security of sample and cupping machine right alignment, sample thickness neutrality, accuracy of experimental results, process of the test.
Description of drawings
Fig. 1 is a front view of the present utility model;
Fig. 2 is that the A of jig main body 5 among Fig. 1 is to vertical view;
Fig. 3 is the B-B cut-open view of Fig. 2;
Fig. 4 is the vertical view of automatic aligning axle sleeve 2;
Fig. 5 is the vertical view of jig main body 5;
Fig. 6 is traditional rectangular cross section drawing by high temperature sample front view;
Fig. 7 is a rectangular cross section drawing by high temperature sample front view of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
As shown in Figure 1, a kind of thin plate high temperature tension test anchor clamps, mainly comprise automatic aligning attaching nut 1, coupling shaft 3, jig main body 5, an end of coupling shaft 3 is with automatic aligning axle sleeve 2 and adopts sphere to be connected and fixed with automatic aligning attaching nut 1, and the other end is connected with jig main body 5.Connected mode between jig main body 5 and the coupling shaft 3 mainly contains two kinds, and a kind of is at jig main body 5 tops and hole respectively in the center of coupling shaft 3 ends and hitch, links to each other (as shown in Figure 1) with coupling shaft 3 by attachment screw 4.Another kind is at boring of the center at jig main body 5 tops and hitch, in coupling shaft 3 ends around hitch, by screw thread jig main body 5 is connected (not drawing among the figure) with coupling shaft 3.The utility model cooperates location (referring to Fig. 4) by the V-type groove 21 of automatic aligning axle sleeve 2 with the thimble of cupping machine.
Shown in Fig. 1,2,5, jig main body 5 is provided with a sunk area that extends back from front surface, this regional shape and size are basic identical with the end of standard sample, the degree of depth of sunk area is 2/3～4/5 of a jig main body thickness, and the outlet size of sunk area and sample 8 transition arcs 81 sizes fit like a glove.Be the conveniently assemble and disassemble sample, jig main body 5 both sides are provided with sliding tray 51, in the front of jig main body a cover plate 6 moving up and down are installed by sliding tray 51.
High temperature tension test requires sample sample axis in drawing process to overlap with line of action of force, must guarantee that based on the anchor clamps of this design the sample axis of different-thickness overlaps with line of action of force, has designed thickness centering screw for this reason.As shown in Figure 3, a thickness centering screw 9 is installed, a gib screw 7 is installed on the cover plate 6 in the back of jig main body 5.Front end at thickness centering screw 9 and gib screw 7 passes through respectively centre bearer 12 and solid bearing 13 are installed thickness to cover plate 10 and securing cover plate 11.Be threaded engagement between thickness centering screw 9 and the jig main body 5, thickness centering screw 9, thickness to centre bearer 12, thickness to all adopting transition fit between the cover plate 10; Be threaded engagement between gib screw 7 and the cover plate 6, all adopt transition fit between gib screw 7, solid bearing 13, the securing cover plate 11.Be that cover plate 6, gib screw 7, solid bearing 13 and securing cover plate 11 are one, thickness centering screw 9, thickness are one to centre bearer 12, thickness to cover plate 10.Rotation thickness centering screw 9 and gib screw 7 like this transfers the circular motion of screw thread the rectilinear motion of thickness to cover plate 10 and securing cover plate 11 to, by thickness cover plate 10 and securing cover plate 11 moved forward and backward, and locatees, the clamping sample.
As shown in Figure 3, thickness centering screw 9 break into portions on circumference, by screw thread rotation one circle, the distance that moves axially of screw thread is the principle of pitch, can guarantee that sample axis and line of action of force repeatability maximum error reach 0.1mm.Regulate thickness centering screw 9 according to sample thickness during test, after thickness centering screw 9 is adjusted, only need rotation gib screw 7 can finish the clamping of sample.And for the sample of same thickness, first install after, all the other samples only need rotate gib screw 7 and get final product later on, and are easy to setup.
When unloading sample, only need rotation gib screw 7, the sliding tray 51 of cover plate 6 at jig main body 5 moved up, can finish the sample work of unloading.
For guaranteeing the sunk area dimensional tolerence of jig main body 5, the processing of jig main body 5 is all finished by the line cutting.The part that jig main body 5 sunk area lines scale off is used to do thickness to cover plate 10 and securing cover plate 11, can guarantee that like this jig main body 5 and thickness are to cover plate 10 and securing cover plate 11 no-floats.
Because the high temperature tension test temperature up to 800 ℃, for avoiding bearing failure, is selected the high temperature sliding bearing.Anchor clamps require to have very high elevated temperature strength, select exotic material based on these anchor clamps.
Claims (7)
1. thin plate high temperature tension test anchor clamps, it is characterized in that: mainly comprise automatic aligning attaching nut (1), coupling shaft (3), jig main body (5), one end of coupling shaft (3) is with automatic aligning axle sleeve (2) and is connected with automatic aligning attaching nut (1), and the other end is connected with jig main body (5); Jig main body (5) is provided with a sunk area that extends back from front surface, this regional shape and size are basic identical with the end of standard sample, jig main body (5) both sides are provided with sliding tray (51), in the front of jig main body a cover plate moving up and down (6) are installed by sliding tray (51); A thickness centering screw (9) is installed in back at jig main body (5), and cover plate (6) is gone up a gib screw (7) is installed.
2. a kind of thin plate high temperature tension test anchor clamps according to claim 1 is characterized in that: the front end at thickness centering screw (9) and gib screw (7) passes through respectively centre bearer (12) and solid bearing (13) are installed thickness to cover plate (10) and securing cover plate (11).
3. a kind of thin plate high temperature tension test anchor clamps according to claim 2, it is characterized in that: between thickness centering screw (9) and the jig main body (5) for threaded engagement, thickness centering screw (9), thickness to centre bearer (12), thickness to all adopting transition fit between the cover plate (10); Between gib screw (7) and the cover plate (6) is threaded engagement, and gib screw (7), solid bearing (13), securing cover plate all adopt transition fit between (11).
4. a kind of thin plate high temperature tension test anchor clamps according to claim 1 is characterized in that: automatic aligning axle sleeve (2) adopts spherical the connection with automatic aligning attaching nut (1).
5. a kind of thin plate high temperature tension test anchor clamps according to claim 1 is characterized in that: be connected by attachment screw (4) between coupling shaft (3) and the jig main body (5).
6. a kind of thin plate high temperature tension test anchor clamps according to claim 1 is characterized in that: adopt between coupling shaft (3) and the jig main body (5) to be threaded.
7. a kind of thin plate high temperature tension test anchor clamps according to claim 1 is characterized in that: the outlet size of jig main body (5) sunk area and sample (8) transition arcs (81) size fit like a glove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205223766U CN201803899U (en) | 2010-09-07 | 2010-09-07 | Clamp for high-temperature tensile test of thin plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205223766U CN201803899U (en) | 2010-09-07 | 2010-09-07 | Clamp for high-temperature tensile test of thin plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201803899U true CN201803899U (en) | 2011-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205223766U Expired - Fee Related CN201803899U (en) | 2010-09-07 | 2010-09-07 | Clamp for high-temperature tensile test of thin plate |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102607944A (en) * | 2012-04-17 | 2012-07-25 | 西安近代化学研究所 | Gripper for tension test |
| CN102735557A (en) * | 2012-05-22 | 2012-10-17 | 奇瑞汽车股份有限公司 | Fatigue test device for vehicle body thin plate, and test method thereof |
| CN103364268A (en) * | 2012-04-09 | 2013-10-23 | 中电电气(上海)太阳能科技有限公司 | Tension machine clamp |
| CN103674693A (en) * | 2013-12-08 | 2014-03-26 | 上海华龙测试仪器股份有限公司 | Clamping die for thin-plate high-temperature tensile test |
| CN104440652A (en) * | 2014-10-22 | 2015-03-25 | 上海飞机制造有限公司 | Thin-wall structural part tensile fixture device |
| CN105716942A (en) * | 2016-01-27 | 2016-06-29 | 北京航空航天大学 | Mechanical performance test clamp for polymer material in high-low-temperature environmental box |
| CN106769423A (en) * | 2016-11-24 | 2017-05-31 | 中国航空工业集团公司北京航空材料研究院 | One kind is applied to plate tensile sample high-temperature and durable creeping test fixture |
| CN107063885A (en) * | 2017-06-16 | 2017-08-18 | 中国人民解放军第五七九工厂 | High temperature tension test spherical centering method |
| CN107677546A (en) * | 2017-08-31 | 2018-02-09 | 江苏省沙钢钢铁研究院有限公司 | Method for measuring tensile strength of Gleeble high-temperature compression sample |
| CN110389073A (en) * | 2019-08-30 | 2019-10-29 | 贵州航天精工制造有限公司 | It is a kind of for measuring the test tool of O-ring seal tensile property |
| CN111398053A (en) * | 2020-04-17 | 2020-07-10 | 中国航发北京航空材料研究院 | High-temperature test device with wedge-shaped sample self-centering and multi-degree-of-freedom adjustable |
| CN117491128A (en) * | 2023-10-24 | 2024-02-02 | 天津大学 | I & II composite fatigue fracture test device and method suitable for various samples |
-
2010
- 2010-09-07 CN CN2010205223766U patent/CN201803899U/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103364268A (en) * | 2012-04-09 | 2013-10-23 | 中电电气(上海)太阳能科技有限公司 | Tension machine clamp |
| CN103364268B (en) * | 2012-04-09 | 2015-05-20 | 中电电气(上海)太阳能科技有限公司 | Tension machine clamp |
| CN102607944A (en) * | 2012-04-17 | 2012-07-25 | 西安近代化学研究所 | Gripper for tension test |
| CN102735557B (en) * | 2012-05-22 | 2015-03-25 | 奇瑞汽车股份有限公司 | Fatigue test device for vehicle body thin plate, and test method thereof |
| CN102735557A (en) * | 2012-05-22 | 2012-10-17 | 奇瑞汽车股份有限公司 | Fatigue test device for vehicle body thin plate, and test method thereof |
| CN103674693A (en) * | 2013-12-08 | 2014-03-26 | 上海华龙测试仪器股份有限公司 | Clamping die for thin-plate high-temperature tensile test |
| CN104440652A (en) * | 2014-10-22 | 2015-03-25 | 上海飞机制造有限公司 | Thin-wall structural part tensile fixture device |
| CN105716942A (en) * | 2016-01-27 | 2016-06-29 | 北京航空航天大学 | Mechanical performance test clamp for polymer material in high-low-temperature environmental box |
| CN106769423A (en) * | 2016-11-24 | 2017-05-31 | 中国航空工业集团公司北京航空材料研究院 | One kind is applied to plate tensile sample high-temperature and durable creeping test fixture |
| CN106769423B (en) * | 2016-11-24 | 2019-05-21 | 中国航空工业集团公司北京航空材料研究院 | One kind being suitable for plate tensile sample high-temperature and durable creeping test fixture |
| CN107063885A (en) * | 2017-06-16 | 2017-08-18 | 中国人民解放军第五七九工厂 | High temperature tension test spherical centering method |
| CN107677546A (en) * | 2017-08-31 | 2018-02-09 | 江苏省沙钢钢铁研究院有限公司 | Method for measuring tensile strength of Gleeble high-temperature compression sample |
| CN110389073A (en) * | 2019-08-30 | 2019-10-29 | 贵州航天精工制造有限公司 | It is a kind of for measuring the test tool of O-ring seal tensile property |
| CN111398053A (en) * | 2020-04-17 | 2020-07-10 | 中国航发北京航空材料研究院 | High-temperature test device with wedge-shaped sample self-centering and multi-degree-of-freedom adjustable |
| CN117491128A (en) * | 2023-10-24 | 2024-02-02 | 天津大学 | I & II composite fatigue fracture test device and method suitable for various samples |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20160907 |