CN104764661A - Test device and test method for measuring mechanical properties of lap joint samples - Google Patents
Test device and test method for measuring mechanical properties of lap joint samples Download PDFInfo
- Publication number
- CN104764661A CN104764661A CN201510154237.XA CN201510154237A CN104764661A CN 104764661 A CN104764661 A CN 104764661A CN 201510154237 A CN201510154237 A CN 201510154237A CN 104764661 A CN104764661 A CN 104764661A
- Authority
- CN
- China
- Prior art keywords
- sample
- test
- overlap joint
- type
- fixture
- 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.)
- Pending
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a test device and a test method for measuring mechanical properties of lap joint samples. The test device comprises two clamps used for clamping the lap joint samples, two cover plates used for fixing the lap joint samples on the clamps, two loading heads used for connecting the test device and experimental equipment, four kinds of lap joint samples and a set of connecting bolt and pin. The test method comprises the following steps: clamping to-be-measured lap joint samples by virtue of the two clamps in a matching manner, connecting the clamps with the test equipment by virtue of the loading heads, loading, and testing the shear resistance, bending resistance, torsion resistance or tensile mechanical properties of the samples. With the adoption of the general design idea, the tensile properties, shear resistance, bending resistance and four-angle KSII of the lap joint samples can be tested, the device is applied to the lap joint samples of three different connection types and has extremely high universality, and the cost of the clamps is reduced.
Description
Technical field
The present invention relates to test unit, especially relating to the test unit for measuring overlap joint sample mechanical property and test method, can be used for measuring solder joint, structure glue and glue and be welded in failure stress in stretchings, bending, torsion and shear test.
Background technology
Spot welding, splicing and glue weld as three kinds of conventional overlapping modes, and have the feature such as low cost, high-level efficiency, bridging arrangement has inferior quality, high strength, stability advantages of higher, is widely used in industrial automation, especially the connection of body of a motor car.Bridging arrangement mainly bears the loads typical such as pulling force, shearing force, moment of flexure and moment of torsion, and under the effect of single load and multiple load, bridging arrangement can be scrapped because of premature failure, even causes major accident.Along with day by day harsh to improving constantly of requiring of product quality and product work situation of people, the mechanical performance index of bridging arrangement is the important evaluation index of its safety and stability, overlap joint sample is drawn, is cut, important channel that curved and torsional test is the mechanical property parameters obtaining bridging arrangement, and the test unit formulating rational test method and design specialized to be warranty test result crucial accurately, the integrated test unit that therefore project organization is simple, applied widely, measuring accuracy is high is extremely urgent.
Publication number is CN 102645382A patent of invention (for measuring the test method of spot welding shear resistance and special test unit thereof), disclose a kind of right-angled intersection spot-welding sample by the assay method of maximum antitorque moment when turning round and special test unit, and the structure of this device is relatively complicated, not easily realize.Prior art is only suitable for a certain type carriers to the welding performance parametric measurement method of spot-welding sample and device, and method of operating is relatively complicated, not easily realizes, and measuring accuracy receives certain restriction.
Summary of the invention
Object of the present invention, exactly in order to overcome the defect that above-mentioned prior art exists, provides a kind of for measuring the test unit and test method that overlap sample mechanical property.Following functions can be realized: the cutting performance of (1) overlap joint sample measures by the installation site changing two ends loading head and sample; (2) bending property overlapping sample measures; (3) twisting property overlapping sample measures; (4) stretching and the KSII multi-angle mechanics performance determining of sample is overlapped.
Technical scheme of the present invention is as follows:
For measuring a test unit for overlap joint sample mechanical property, for being connected on experimental facilities, the mechanical property of overlap joint sample being measured, comprising:
For clamping two fixtures of overlap joint sample, two fixture combinations use;
For overlap joint sample being fixed on two cover plates on fixture;
For two loading heads of joint test device and experimental facilities;
Four kinds of overlap joint samples, are respectively I type sample, II type sample, type III sample and IV type sample;
A set of coupling bolt and pin.
Two described clamp structure symmetries are identical, main body is fan-shaped, sector is provided with a rectangle sipes, circular arc regulating tank is provided with near circular arc side, five semicircle connecting holes are communicated with outside circular arc regulating tank, be followed successively by 90 ° of connecting holes, 60 ° of connecting holes, 45 ° of connecting holes, 30 ° of connecting holes and 0 ° of connecting hole, central angle place is provided with square breach, the sector of breach side is provided with two pin-and-holes, the sector of breach opposite side is provided with through slot, and a pin-and-hole passes perpendicularly through this through slot from a side of sector.
Described loading head main body is square groove shape, and its trench bottom is provided with the connector for being connected with experimental facilities, and two trough rims are provided with through pin-and-hole.
Described I type sample connects into straight shape by two blocks of straight plates, and II type sample connects into dihedral by two blocks of straight plates, type III sample connects into H-shaped by two pieces of trough plates, and IV type sample connects into ┴ type by two blocks of square plates; Its connected mode comprises spot welding and connects, glueds joint or glue weldering.
The test method of the above-mentioned test unit for measuring overlap joint sample mechanical property is, overlap joint sample to be measured is coordinated clamping by two fixtures, to be connected with testing equipment by loading head and to load, carrying out that sample is anti-shearing, counter-bending, the test of anti-torsion or stretch-proof mechanical property.
The stretch-proof performance measurement of sample is carried out overlapping in 0 ° of position loading head being connected to fixture, loading head is connected to stretch-proof, anti-shear performance test that sample is carried out overlapping in 30 ° of fixture or 60 ° of positions, anti-shearing, the anti-torsion performance test of sample is carried out overlapping in 90 ° of positions loading head being connected to fixture, and anti-shearing, the bending resistance test of sample is carried out overlapping in 45 ° of positions loading head being connected to fixture.
Compared with prior art, the present invention adopts General design theory, can not only realize overlapping the stretching of sample, shearing, bending, twisting test and four angle KSII to test, and be applicable to the overlap joint sample of three kinds of different connection types (spot welding, splicing and glue weldering), there is very strong versatility, be conducive to the reduction of fixture cost.Chuck body structurally mainly adopts pin-and-hole to connect, and is conducive to the simplification operated; Sipes can make sample firmly be fixed in chuck body, and position change can not occur in process of the test; Circular arc regulating tank can simplify the position adjustment programme of loading head greatly, improves test efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of the fixture in the present invention;
Fig. 2 a, Fig. 2 b are the structural representations of the loading head in the present invention;
Fig. 3 a, Fig. 3 b, Fig. 3 c, Fig. 3 d are the structural representations of the sample in the present invention, and wherein Fig. 3 a is I type sample, and Fig. 3 b is II type sample, and Fig. 3 c is type III sample, and Fig. 3 d is IV type sample;
Fig. 4 is that I type sample is installed schematic diagram;
Fig. 5 is that II type sample is installed schematic diagram;
Fig. 6 is that type III sample is installed schematic diagram;
Fig. 7 is that IV type sample is installed schematic diagram.
Embodiment
Below in conjunction with example, device of the present invention is further described: the present embodiment is implemented under premised on technical solution of the present invention, give detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As shown in Fig. 1 ~ 5, the present invention is for measuring the test unit of overlap joint sample mechanical property, measure the mechanical property of overlap joint sample for being connected on experimental facilities, it comprises two fixtures, 1, two cover plates, 2, two loading heads 3 and four kind of overlap joint sample 4,5,6,7.
Two fixtures 1 combinationally use, for clamping overlap joint sample.Two clamp structure symmetries are identical, main body is fan-shaped, sector is provided with a rectangle sipes 11, circular arc regulating tank 12 is provided with near circular arc side, five semicircle connecting holes are communicated with outside circular arc regulating tank, be followed successively by 90 ° of connecting holes, 60 ° of connecting holes, 45 ° of connecting holes, 30 ° of connecting holes and 0 ° of connecting hole, central angle place is provided with square breach, the sector of breach side is provided with two pin-and-holes 13, the sector of breach opposite side is provided with through slot 14, and a pin-and-hole 15 passes perpendicularly through this through slot from a side of sector.
Two cover plate 2 structures are identical, for overlap joint sample is fixed on fixture.
Two loading head 3 structures are identical, for joint test device and experimental facilities; This loading head main body is square groove shape, and connector 31, two trough rim that its trench bottom is provided with for being connected with experimental facilities is provided with through pin-and-hole 32.
Four kinds of overlap joint samples, are respectively I type sample 4, II type sample 5, type III sample 6 and IV type sample 7.
A set of coupling bolt and pin, for being connected with fixture by overlap joint sample, be connected cover plate 2 with overlap joint sample, fixture, or for loading head is connected with fixture.
See Fig. 3, the I type sample 4 in the present invention connects into straight shape by two blocks of straight plates, and II type sample 5 connects into dihedral by two blocks of straight plates, type III sample 6 connects into H-shaped by two pieces of trough plates, and IV sample 7 connects into ┴ type by two blocks of square plates; Its connected mode comprises spot welding and connects, glueds joint or glue weldering.
The test method of the above-mentioned test unit for measuring overlap joint sample mechanical property is, overlap joint sample to be measured is coordinated clamping by two fixtures, to be connected with testing equipment by loading head and to load, carrying out that sample is anti-shearing, counter-bending, the test of anti-torsion or stretch-proof mechanical property.Specific practice is the stretch-proof performance measurement that sample is carried out overlapping in 0 ° of position loading head being connected to fixture, loading head is connected to stretch-proof, anti-shear performance test that sample is carried out overlapping in 30 ° of fixture or 60 ° of positions, anti-shearing, the anti-torsion performance test of sample is carried out overlapping in 90 ° of positions loading head being connected to fixture, and anti-shearing, the bending resistance test of sample is carried out overlapping in 45 ° of positions loading head being connected to fixture.
The specific implementation method that I type sample 4 in the present invention is installed coordinates Fig. 4 to be described as follows:
Two bare terminal ends of I type sample 4 are placed in respectively in the sipes 11 of two fixtures 1, two cover plates 2 are positioned over two bare terminal ends of I type sample 4, by fastening bolt 8, I type sample 4 is fixed on fixture 1, two loading heads 3 are positioned over respectively 45 ° of connection holes of two fixtures, by connecting pin 9, loading head is fixedly connected with fixture, then loading head 3 is arranged on experimental facilities, namely completes being installed of I type sample 4.
The specific implementation method that II type sample 5 in the present invention is installed coordinates Fig. 5 to be described as follows:
The two ends of II type sample 5 are placed in the through slot 14 of two fixtures 1 respectively, in the pin-and-hole 15 being inserted through slot 14 place by pin 10, II type sample 5 is fixed on two fixtures 1, two loading heads 3 are positioned over respectively 90 ° of connection holes of two fixtures 1, by connecting pin 9, loading head 3 is fixedly connected with fixture 1, then loading head 3 is arranged on experimental facilities, namely completes being installed of II type sample 5.
The specific implementation method that type III sample 6 in the present invention is installed coordinates Fig. 6 to be described as follows:
The two ends of type III sample 6 are placed in respectively on two fixtures 1, by pin 11, type III sample 6 is fixed on fixture 1, two loading heads 3 are positioned over respectively 0 ° of connection hole of two fixtures, by connecting pin 9, loading head is fixedly connected with fixture, then be arranged on experimental facilities by loading head 3, the KSII 0 ° namely completing type III sample 6 is installed.The position of above-mentioned loading head 3 can be adjusted by the circular arc regulating tank 12 on fixture, moves to 30 ° on fixture, 60 ° or 90 ° of connection holes, realizes KSII 30 °, KSII60 ° or KSII 90 ° test of type III sample 6 respectively.
The specific implementation method that IV type sample 7 in the present invention is installed coordinates Fig. 7 to be described as follows:
Two bare terminal ends of IV type sample 7 are placed in the sipes 11 of two fixtures 1 respectively, two cover plates 2 are positioned over respectively two bare terminal ends of IV type sample 7, by fastening bolt 8, IV type sample 7 is fixed on fixture 1, two loading heads 3 are positioned over respectively 45 ° of connection holes of two fixtures, by connecting pin 9, loading head is fixedly connected with fixture, then be arranged on experimental facilities by loading head 3, the KSII 0 ° namely completing IV type sample 7 is installed.
In the above-described embodiments, when needing the position adjusting loading head 3, without the need to unloading loading head, only needing to hold up loading head and making it enter in circular arc regulating tank, by rotary clamp 1, loading head being adjusted to desired position.Be adjusted to KSII 0 ° of pure extension test that 0 °, 30 °, 60 ° or 90 ° of connecting holes can carry out type III sample, KSII 30 ° of stretching+shear tests, KSII 60 ° of stretching+shear tests, KSII 90 ° of pure shear tests, be adjusted to 90 ° of connecting holes and can carry out II type sample twisting test, be adjusted to shear test and bending test that 45 ° of connecting holes can realize I type sample and IV type sample respectively.
Claims (6)
1., for measuring a test unit for overlap joint sample mechanical property, for being connected on experimental facilities, the mechanical property of overlap joint sample being measured, it is characterized in that comprising:
For clamping two fixtures of overlap joint sample, two fixture combinations use;
For overlap joint sample being fixed on two cover plates on fixture;
For two loading heads of joint test device and experimental facilities;
Four kinds of overlap joint samples, are respectively I type sample, II type sample, type III sample and IV type sample;
A set of coupling bolt and pin.
2. the test unit for measuring overlap joint sample mechanical property according to claim 1, it is characterized in that, two described clamp structure symmetries are identical, main body is fan-shaped, sector is provided with a rectangle sipes, circular arc regulating tank is provided with near circular arc side, five semicircle connecting holes are communicated with outside circular arc regulating tank, be followed successively by 90 ° of connecting holes, 60 ° of connecting holes, 45 ° of connecting holes, 30 ° of connecting holes and 0 ° of connecting hole, central angle place is provided with square breach, the sector of breach side is provided with two pin-and-holes, the sector of breach opposite side is provided with through slot, one pin-and-hole passes perpendicularly through this through slot from a side of sector.
3. the test unit for measuring overlap joint sample mechanical property according to claim 1, it is characterized in that, described loading head main body is square groove shape, and its trench bottom is provided with the connector for being connected with experimental facilities, and two trough rims are provided with through pin-and-hole.
4. the test unit for measuring overlap joint sample mechanical property according to claim 1, it is characterized in that, described I type sample connects into straight shape by two blocks of straight plates, II type sample connects into dihedral by two blocks of straight plates, type III sample connects into H-shaped by two pieces of trough plates, and IV type sample connects into ┴ type by two blocks of square plates; Its connected mode comprises spot welding and connects, glueds joint or glue weldering.
5. the test method of the test unit for measuring overlap joint sample mechanical property according to claim 1, it is characterized in that: overlap joint sample to be measured is coordinated clamping by two fixtures, to be connected with testing equipment by loading head and to load, carrying out that sample is anti-shearing, counter-bending, the test of anti-torsion or stretch-proof mechanical property.
6. test method according to claim 5, it is characterized in that: the stretch-proof performance measurement of sample is carried out overlapping in 0 ° of position loading head being connected to fixture, loading head is connected to stretch-proof, anti-shear performance test that sample is carried out overlapping in 30 ° of fixture or 60 ° of positions, anti-shearing, the anti-torsion performance test of sample is carried out overlapping in 90 ° of positions loading head being connected to fixture, and anti-shearing, the bending resistance test of sample is carried out overlapping in 45 ° of positions loading head being connected to fixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510154237.XA CN104764661A (en) | 2015-04-02 | 2015-04-02 | Test device and test method for measuring mechanical properties of lap joint samples |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510154237.XA CN104764661A (en) | 2015-04-02 | 2015-04-02 | Test device and test method for measuring mechanical properties of lap joint samples |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104764661A true CN104764661A (en) | 2015-07-08 |
Family
ID=53646627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510154237.XA Pending CN104764661A (en) | 2015-04-02 | 2015-04-02 | Test device and test method for measuring mechanical properties of lap joint samples |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104764661A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105486583A (en) * | 2016-01-25 | 2016-04-13 | 重庆交通大学 | Soil body two-dimensional fracture testing method and device |
| CN105510154A (en) * | 2016-01-01 | 2016-04-20 | 三峡大学 | Device for measuring shearing strength index of rock-soil specimen and measuring method |
| CN105628496A (en) * | 2016-03-22 | 2016-06-01 | 北京航空航天大学 | Multifunctional shearing test fixture used for composite material parameter identification |
| CN105699186A (en) * | 2016-03-04 | 2016-06-22 | 中国汽车工程研究院股份有限公司 | Method for testing and evaluating angle-variable kinetic performance of metal resistance spot welding point |
| CN106404557A (en) * | 2016-11-14 | 2017-02-15 | 中国科学院武汉岩土力学研究所 | Hollow cylinder torsional shear apparatus for rock |
| CN106644726A (en) * | 2017-01-11 | 2017-05-10 | 广东工业大学 | Annular specimen tensile testing device and realizing method thereof |
| CN106932267A (en) * | 2017-02-20 | 2017-07-07 | 广东工业大学 | A kind of material Micro Mechanical Properties rests clamping device of multiple computation model |
| CN106952563A (en) * | 2017-05-16 | 2017-07-14 | 重庆科技学院 | A kind of antitorque teaching demonstration device of steel member |
| CN108169016A (en) * | 2017-12-12 | 2018-06-15 | 清华大学 | A kind of adjustable sample of multi-angle bears the experimental rig of pulling force and shearing simultaneously |
| CN109520831A (en) * | 2018-11-28 | 2019-03-26 | 山东中车风电有限公司 | One kind being bolted slow test tooling, pilot system and application method |
| CN110031288A (en) * | 2019-05-17 | 2019-07-19 | 王渡初 | A kind of plate pure shear experiment loading device |
| CN110346221A (en) * | 2019-08-20 | 2019-10-18 | 山东建筑大学 | A kind of experimental rig and method for simulating the compound cracking model of mixture |
| CN111238925A (en) * | 2020-03-18 | 2020-06-05 | 吉林大学 | Multi-angle shearing clamp for thin plate test piece |
| CN111982682A (en) * | 2020-08-14 | 2020-11-24 | 清华大学 | Friction type multi-angle pull-shear test device capable of adapting to multi-type fasteners |
| CN114544490A (en) * | 2022-02-18 | 2022-05-27 | 福耀玻璃工业集团股份有限公司 | Simulation atress frock and ageing behavior detection device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201477012U (en) * | 2009-08-14 | 2010-05-19 | 阳建红 | Clamping apparatus for variable-angle shear test |
| CN102645382A (en) * | 2012-04-01 | 2012-08-22 | 郑州宇通客车股份有限公司 | Test method for measuring shear strength of welding spots and dedicated tester thereof |
| CN203011766U (en) * | 2012-12-25 | 2013-06-19 | 上海大学 | Assistant locating and clamping device for tensile test of spot welding test sample |
| US20140157862A1 (en) * | 2012-08-03 | 2014-06-12 | Embraer S.A. | Device and methods for testing quality of welding joints |
| CN104181052A (en) * | 2014-07-23 | 2014-12-03 | 华东理工大学 | Method for testing mechanical property of braze welding connector |
| CN104237009A (en) * | 2014-04-21 | 2014-12-24 | 浙江师范大学 | Point joint tensile-shear strength testing device capable of applying multi-directional loads |
-
2015
- 2015-04-02 CN CN201510154237.XA patent/CN104764661A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201477012U (en) * | 2009-08-14 | 2010-05-19 | 阳建红 | Clamping apparatus for variable-angle shear test |
| CN102645382A (en) * | 2012-04-01 | 2012-08-22 | 郑州宇通客车股份有限公司 | Test method for measuring shear strength of welding spots and dedicated tester thereof |
| US20140157862A1 (en) * | 2012-08-03 | 2014-06-12 | Embraer S.A. | Device and methods for testing quality of welding joints |
| CN203011766U (en) * | 2012-12-25 | 2013-06-19 | 上海大学 | Assistant locating and clamping device for tensile test of spot welding test sample |
| CN104237009A (en) * | 2014-04-21 | 2014-12-24 | 浙江师范大学 | Point joint tensile-shear strength testing device capable of applying multi-directional loads |
| CN104181052A (en) * | 2014-07-23 | 2014-12-03 | 华东理工大学 | Method for testing mechanical property of braze welding connector |
Non-Patent Citations (2)
| Title |
|---|
| 李龙，胡平，刘立忠: "不同胶层厚度单搭接接头剪切试验与强度预测", 《农业机械学报 》 * |
| 花福安，李建平，马鸣图，冯毅: "点焊冲击性能测试技术研究现状", 《汽车工艺与材料》 * |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105510154A (en) * | 2016-01-01 | 2016-04-20 | 三峡大学 | Device for measuring shearing strength index of rock-soil specimen and measuring method |
| CN105486583A (en) * | 2016-01-25 | 2016-04-13 | 重庆交通大学 | Soil body two-dimensional fracture testing method and device |
| CN105699186A (en) * | 2016-03-04 | 2016-06-22 | 中国汽车工程研究院股份有限公司 | Method for testing and evaluating angle-variable kinetic performance of metal resistance spot welding point |
| CN105628496A (en) * | 2016-03-22 | 2016-06-01 | 北京航空航天大学 | Multifunctional shearing test fixture used for composite material parameter identification |
| CN106404557A (en) * | 2016-11-14 | 2017-02-15 | 中国科学院武汉岩土力学研究所 | Hollow cylinder torsional shear apparatus for rock |
| CN106404557B (en) * | 2016-11-14 | 2023-09-01 | 中国科学院武汉岩土力学研究所 | Rock hollow cylinder torsion shear instrument |
| CN106644726B (en) * | 2017-01-11 | 2023-04-11 | 广东工业大学 | Annular sample tensile test device and implementation method thereof |
| CN106644726A (en) * | 2017-01-11 | 2017-05-10 | 广东工业大学 | Annular specimen tensile testing device and realizing method thereof |
| CN106932267A (en) * | 2017-02-20 | 2017-07-07 | 广东工业大学 | A kind of material Micro Mechanical Properties rests clamping device of multiple computation model |
| CN106952563A (en) * | 2017-05-16 | 2017-07-14 | 重庆科技学院 | A kind of antitorque teaching demonstration device of steel member |
| CN108169016A (en) * | 2017-12-12 | 2018-06-15 | 清华大学 | A kind of adjustable sample of multi-angle bears the experimental rig of pulling force and shearing simultaneously |
| CN109520831B (en) * | 2018-11-28 | 2021-06-18 | 山东中车风电有限公司 | Bolt connection static test tool, test system and use method |
| CN109520831A (en) * | 2018-11-28 | 2019-03-26 | 山东中车风电有限公司 | One kind being bolted slow test tooling, pilot system and application method |
| CN110031288B (en) * | 2019-05-17 | 2021-09-21 | 王渡初 | Pure shearing experiment loading device for plates |
| CN110031288A (en) * | 2019-05-17 | 2019-07-19 | 王渡初 | A kind of plate pure shear experiment loading device |
| CN110346221A (en) * | 2019-08-20 | 2019-10-18 | 山东建筑大学 | A kind of experimental rig and method for simulating the compound cracking model of mixture |
| CN111238925A (en) * | 2020-03-18 | 2020-06-05 | 吉林大学 | Multi-angle shearing clamp for thin plate test piece |
| CN111982682A (en) * | 2020-08-14 | 2020-11-24 | 清华大学 | Friction type multi-angle pull-shear test device capable of adapting to multi-type fasteners |
| CN114544490A (en) * | 2022-02-18 | 2022-05-27 | 福耀玻璃工业集团股份有限公司 | Simulation atress frock and ageing behavior detection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104764661A (en) | Test device and test method for measuring mechanical properties of lap joint samples | |
| CN211602685U (en) | Clamp for cross stretching of welding spots | |
| CN203011766U (en) | Assistant locating and clamping device for tensile test of spot welding test sample | |
| CN110031313B (en) | Test device and method for evaluating mechanical property of T-shaped structure | |
| CN203606214U (en) | Clamping device for welded stud tensile test | |
| KR20120110532A (en) | Jig apparatus for tensile test of spot welding sample | |
| KR100940654B1 (en) | Apparatus for measuring welding property of specimen | |
| CN102645382B (en) | For measuring the test method of solder joint shear resistance and special test unit thereof | |
| CN211262949U (en) | Connecting device for T-shaped joint tensile test | |
| CN204630807U (en) | For measuring the test unit of overlap joint sample mechanical property | |
| CN102003940A (en) | Sample automatic centering size measurement device | |
| CN205300466U (en) | Universal joint angle clearance detection device | |
| CN216051086U (en) | Hole-containing thin plate structure compression fatigue clamp | |
| CN210863496U (en) | Centering device for testing positive tensile bonding strength of adhesive | |
| CN205352833U (en) | Bolt tensile test universal fixturing | |
| CN103675039B (en) | The lossless detection method of friction welding joint quality under large electric current | |
| CN103411827A (en) | Tensile fixture of round bar tensile sample | |
| CN203791920U (en) | Stud jig and stud | |
| CN110906839A (en) | Detection tool for detecting automobile top cover front cross beam welding piece | |
| CN109269881A (en) | A kind of drawing fixture of rectangular tubular workpiece | |
| CN209894617U (en) | Part torsion performance testing device | |
| CN214096890U (en) | Bolt tension-torsion testing machine | |
| CN209416819U (en) | A kind of drawing fixture of rectangular tubular workpiece | |
| CN220104654U (en) | Asphalt mixture drawing test fixture matched with UTM universal testing machine | |
| CN210834619U (en) | Measure bonding interface tensile strength's testing arrangement and tensile testing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150708 |
|
| RJ01 | Rejection of invention patent application after publication |