CN110220773A - A kind of adjustable three, the universal testing machine fixture of four-point bending - Google Patents
A kind of adjustable three, the universal testing machine fixture of four-point bending Download PDFInfo
- Publication number
- CN110220773A CN110220773A CN201910449227.7A CN201910449227A CN110220773A CN 110220773 A CN110220773 A CN 110220773A CN 201910449227 A CN201910449227 A CN 201910449227A CN 110220773 A CN110220773 A CN 110220773A
- Authority
- CN
- China
- Prior art keywords
- testing machine
- point bending
- hole location
- adjustable
- hole
- 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
- 238000012360 testing method Methods 0.000 title claims abstract description 82
- 238000013001 point bending Methods 0.000 title claims abstract description 41
- 238000004826 seaming Methods 0.000 claims abstract description 27
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000004567 concrete Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000010998 test method Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
- G01N2203/0447—Holders for quick insertion/removal of test pieces
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A kind of adjustable three, the universal testing machine fixture of four-point bending, including loading unit, support column and supporting part, loading unit includes that hole location plate, top base, the test specimen equipped with two groups of threaded hole groups arranged along its length directly contact and the seaming chuck detachably installed and the load bar directly contacted with testing machine seaming chuck, the perforation hole that load bar passes through top base is connect with the top of hole location plate, and seaming chuck is installed in the bottom of hole location plate；Supporting part includes the lower base directly contacted with tester base, the pedestal and two push-down heads detachably installed that support and give push-down head sliding space, and is the test station for test specimen between push-down head and seaming chuck；Top base is connect with upper part of the supporting column, and lower base is connect with support column lower part.The present invention can accordingly be adjusted according to test specimen size, and can realize three, four-point bending test by replacement pressure head, and structure is simple, convenient for disassembly and assembly, save the cost.
Description
Technical field
The invention belongs to material mechanical performance the field of test technology, and in particular to a kind of adjustable three, four-point bending is logical
With type testing machine fixture.
Background technique
Concrete is most widely used, most commonly used engineering material in current architectural engineering, be widely used in industry and
In the structures such as civilian, hydraulic engineering, nuclear industry and modern chemical industry.With the propulsion and scientific skill of Chinese Urbanization
Art is constantly progressive, and various new concretes also continuously occur, what can such new concrete long-term as China
Architecture engineering material, key are that can its material mechanical performance meet corresponding codes and standards.Therefore, improve test toolss,
Make a kind of applied widely, easy to use, the test toolss that can be improved scientific research efficiency are particularly important.
Anti-bending strength, fracture resistance and fracture toughness performance of concrete etc. can be by the test method institutes of three-point bending
It measures, mechanical performance of concrete measured by four-point bending test method is also similar with three point bending test method.In practical behaviour
During work, generally require to carry out three, four-point bending test to test specimen with fixture by testing machine, but in existing fixture, deposit
In following problems: existing fixture cannot not only can be used for three point bending test but also can be used for four-point bending test, often need
Two specific fixtures are wanted to be tested respectively；Existing fixture cannot replace the upper and lower of corresponding size according to the size of test specimen
Pressure head, and the spacing between two push-down heads can not be adjusted, it can not be simultaneously toward the equidistant adjusting in both sides being adjustable.
Summary of the invention
In order to overcome the shortcomings of that existing bend test method can not carry out three, four-point bending test simultaneously, the present invention is provided
A kind of adjustable three, four-point bending universal testing machine fixture, can accordingly be adjusted according to test specimen size, and
The general testing machine fixture of three, four-point bending can be realized by replacement pressure head, section simple, convenient for disassembly and assembly with structure
About cost the features such as.
The present invention solves its technical problem and is adopted the following technical scheme that
A kind of adjustable three, the universal testing machine fixture of four-point bending, including loading unit, support column and supporting part,
The loading unit, which is located above test specimen, applies compressive load to test specimen, and the loading unit includes to be equipped with two groups to arrange along its length
Threaded hole group hole location plate, top base, test specimen directly contact and the seaming chuck detachably installed and with pressed on testing machine
The load bar that head directly contacts, the perforation hole that the load bar passes through the top base are connect with the top of hole location plate, institute
The bottom for stating hole location plate is installed by the seaming chuck；
For the supporting portion for supporting test specimen below test specimen, the supporting part includes directly to contact with tester base
Lower base, the pedestal and two push-down heads detachably installed that support and give push-down head sliding space, the pushing
It is the test station for test specimen between head and seaming chuck；
The top base of the loading unit is connect with the upper part of the supporting column, the lower base of the supporting part and the branch
The connection of dagger lower part.
Further, the seaming chuck includes pressure roller, the rectangular block that can be embedded the pressure roller and two symmetrical tops
Portion's stud, the pressure roller are installed on the lower end of rectangular block, and the top stud is installed on the upper end of rectangular block, the top stud
The hole location plate is removably mounted to by upper locking nut.
Further, hole location board width direction sets two hole locations, and length direction sets odd number hole location, and is in length
Symmetry axis on the symmetry axis of two hole location circle center line connectings and the base length align.
Further, the pedestal is equipped with inverted T shaped sliding slot, and the T that falls being fixedly connected with pedestal is equipped at the sliding slot both ends
Type screw thread rod bearing.
Be equipped with inverted T shaped sliding block in the inverted T shaped sliding slot of pedestal, the sliding block include inverted T shaped block, a top stud with
And the pulley that two sides are connected with sliding block, screw thread hole is provided among sliding block, and the screw thread hole is associated with the threaded rod.
Preferably, the threaded rod sets symmetrical screw thread to direction of both ends along center.Two push-down heads are adjusted by threaded rod
The distance between.
The push-down head includes pressure roller and the rest pad that can be embedded the pressure roller, is held wherein the rest pad is divided into
Weight portion and interconnecting piece, for load receiving part with interconnecting piece using being fixedly connected, the load receiving part supports the pressure roller and the test specimen, described
Interconnecting piece is equipped with hole, and the stud of the sliding block is passed through interconnecting piece, makes the push-down head and the cunning by lower locking nut
Block is connected, and the stud is removably mounted to the pedestal by the lower locking nut.
The load bar bottom is fixedly connected with the hole location plate, the hole location plate by two symmetrical springs and it is described on
Portion's pedestal is associated, and the both ends of the spring is fixedly connected with the hole location plate with the top base respectively.
The invention has the benefit that
1) by the distance between various sizes of upper push-down head replacement and two push-down heads of adjustment, can be adapted for not
With size test specimen three, four-point bending test.
2) by installing single seaming chuck in hole location plate or being symmetrically installed two identical size seaming chucks, three be may be implemented
The replacement of point bending fixture and four-point bending fixture.
3) by rotating threaded rod, two push-down heads may be implemented simultaneously toward the equidistant movement in pedestal both ends, and work as
When tightening the locking nut for fixing push-down head, push-down head will not be moved.
4) by the scale of pedestal, the distance between two push-down heads can be precisely controlled.
5) by the spring connection between hole location plate and top base, seaming chuck, hole location plate and load bar can be eliminated
The influence being self-possessed to test generation.
6) constraint that load bar horizontal direction is displaced by top base, it is ensured that seaming chuck begins during loading
It is straight down eventually.
Detailed description of the invention
Fig. 1 is the perspective view of adjustable three, the universal testing machine fixture of four-point bending；
Fig. 2 is the general structure schematic diagram of adjustable three, the universal testing machine fixture of four-point bending；
Fig. 3 is the A-A sectional view in Fig. 2；
Fig. 4 is the seaming chuck perspective view of adjustable three, the universal testing machine fixture of four-point bending；
Fig. 5 is the push-down head perspective view of adjustable three, the universal testing machine fixture of four-point bending；
Fig. 6 is the pedestal perspective view of adjustable three, the universal testing machine fixture of four-point bending；
Fig. 7 is the inverted T shaped sliding block perspective view of adjustable three, the universal testing machine fixture of four-point bending；
Fig. 8 is the threaded rod perspective view of adjustable three, the universal testing machine fixture of four-point bending；
Fig. 9 is the hole location plate perspective view of adjustable three, the universal testing machine fixture of four-point bending；
In figure: 1, load bar；2, top base；3, hole location plate；4, spring；51, upper locking nut；52, lower locking nut；
6, seaming chuck；7, support column；8, pedestal；9, push-down head；10, swinging handle；11, lower base；12, threaded rod；13, inverted T shaped
Sliding block.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing.
In the description of invention, it is to be understood that term " on ", "lower", "front", "rear", "left", "right", "top",
The orientation or positional relationship of the instructions such as "bottom" is orientation based on the figure or position, is merely for convenience of and simplifies description
This patent.
Referring to Fig.1~Fig. 9, a kind of adjustable three, the universal testing machine fixture of four-point bending, including loading unit, branch
Dagger 7 and supporting part, as shown in Figure 1, Figure 2 and Figure 3.The loading unit includes hole location plate 3, top base 2, seaming chuck 6, load
Bar 1, upper locking nut 51 and spring 4；The supporting part includes lower base 11, pedestal 8, push-down head 9, threaded rod 12, shakes
Handle 10, inverted T shaped sliding block 13 and lower locking nut 52.
As shown in Figure 1, Figure 2 and Figure 3, in the loading unit, the hole of the default perforation of the top base 2, the load
1 bottom of bar pass through from top to bottom the hole of the top base 2 and be fixedly connected at the top of the hole location plate 3, the seaming chuck 6
Top is equipped with two top studs, and the top stud may pass through the perforation hole reserved in the hole location plate 3, and by tightening
The upper locking nut 51 makes the seaming chuck 6 be fixed on the hole location plate 3,4 upper and lower ends of spring and the top base
Seat 2 is fixedly connected with the hole location plate 3.
In the supporting part, the pedestal 8 is equipped with inverted T shaped sliding slot, moves in sliding slot for two pieces of inverted T shaped sliding blocks 13,
Pulley is equipped at left and right sides of the inverted T shaped sliding block 13, top is equipped with a short thread bar, and a screw thread hole, institute are reserved in middle part
It states threaded rod 12 and passes through the perforation screw thread hole that the inverted T shaped sliding block 13 is reserved, and by left and right ends frame in fixing one with pedestal
In the bracket of body, and one end is stretched out pedestal and is fixedly connected with the swinging handle 10, and the push-down head 9 is reserved with the hole of perforation
Hole, the inverted T shaped 13 top short thread bar of sliding block may pass through backup land in the push-down head 9 and penetrate through hole, and by tightening
Stating lower locking nut 52 is fixed on the push-down head 9 on the pedestal 8,11 top of lower base and the pedestal 8
Bottom is fixedly connected.
The loading unit and the supporting part are fixedly connected with the support column 7, and fixture is made to form a compact entirety.
Of the invention a kind of adjustable three, the universal testing machine fixture of four-point bending working principle:
Before the test, it is selected to carry out three point bending test or four-point bending test, three-point bending according to the demand of test
Test may be selected only to install a seaming chuck on hole location plate, and four-point bending test may be selected to be symmetrically installed two on hole location plate
With the seaming chuck of size.According to the difference of test block size, various sizes of upper push-down head is selected, seaming chuck is first fixed on hole location
On plate, it is rotated further by the swinging handle of pedestal, the past pedestal both ends for keeping push-down head equidistant simultaneously are mobile, until between two push-down heads
Away from Pass Test requirement, tightening the locking nut at push-down head moves it no longer.Finally, fixture is put on testing machine,
The test block that need to carry out mechanical test is placed on fixture, a simply supported beam is made.After fixture and test block installation, adjust
The relevant parameter of whole testing machine can start to test.
In test, by the control of computer terminal, the seaming chuck of testing machine drives the load of fixture with certain speed
Bar, the load bar of fixture drive its seaming chuck to move from top to bottom, give test block downward active force, until its destruction, 3 points
Bend test or four-point bending test are finally completed.
Claims (8)
1. a kind of adjustable three, the universal testing machine fixture of four-point bending, including loading unit, support column and supporting part,
Be characterized in that: the loading unit, which is located above test specimen, applies compressive load to test specimen, and the loading unit includes to be equipped with two groups along long
Hole location plate, top base, the test specimen of the threaded hole group of degree direction arrangement directly contact and the seaming chuck detachably installed and with
The load bar that testing machine seaming chuck directly contacts, the load bar pass through the top of the perforation hole and hole location plate of the top base
The bottom of portion's connection, the hole location plate is installed by the seaming chuck；
For the supporting portion for supporting test specimen below test specimen, the supporting part includes directly to contact down with tester base
Portion's pedestal, the pedestal for supporting and giving push-down head sliding space and two push-down heads detachably installed, the push-down head with
It is the test station for test specimen between seaming chuck；
The top base of the loading unit is connect with the upper part of the supporting column, the lower base of the supporting part and the support column
Lower part connection.
2. one kind according to claim 1 is adjustable three, the universal testing machine fixture of four-point bending, feature exists
In: the seaming chuck includes pressure roller, the rectangular block that can be embedded the pressure roller and two symmetrical top studs, the pressure
Roller is installed on the lower end of rectangular block, and the top stud is installed on the upper end of rectangular block, and the top stud passes through upper locking screw
Mother is removably mounted to the hole location plate.
3. one kind according to claim 1 or 2 is adjustable three, the universal testing machine fixture of four-point bending, feature
Be: hole location board width direction sets two hole locations, and length direction sets odd number hole location, and on the symmetry axis in length
The symmetry axis of two hole location circle center line connectings and the base length aligns.
4. one kind according to claim 1 or 2 is adjustable three, the universal testing machine fixture of four-point bending, feature
Be: the pedestal is equipped with inverted T shaped sliding slot, and the inverted T shaped screw thread rod bearing being fixedly connected with pedestal is equipped at the sliding slot both ends.
5. one kind according to claim 4 is adjustable three, the universal testing machine fixture of four-point bending, feature exists
In: inverted T shaped sliding block is equipped in the inverted T shaped sliding slot of pedestal, the sliding block includes inverted T shaped block, a top stud and two
The pulley that side is connected with sliding block is provided with screw thread hole among sliding block, and screw thread hole is associated with the threaded rod.
6. one kind according to claim 5 is adjustable three, the universal testing machine fixture of four-point bending, feature exists
In: the threaded rod sets symmetrical screw thread to direction of both ends along center.
7. one kind according to claim 1 or 2 is adjustable three, the universal testing machine fixture of four-point bending, feature
Be: the push-down head includes pressure roller, the rest pad that can be embedded the pressure roller, wherein the rest pad is divided into load receiving part
With interconnecting piece, for load receiving part with interconnecting piece using being fixedly connected, the load receiving part supports the pressure roller and the test specimen, the connection
Portion is equipped with hole, and the stud of the sliding block is passed through interconnecting piece, makes the push-down head and the sliding block phase by lower locking nut
Connection, the stud are removably mounted to the pedestal by the lower locking nut.
8. one kind according to claim 1 or 2 is adjustable three, the universal testing machine fixture of four-point bending, feature
Be: the load bar bottom is fixedly connected with the hole location plate, and the hole location plate passes through two symmetrical springs and the top
Pedestal is associated, and the both ends of the spring is fixedly connected with the hole location plate with the top base respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910449227.7A CN110220773A (en) | 2019-05-28 | 2019-05-28 | A kind of adjustable three, the universal testing machine fixture of four-point bending |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910449227.7A CN110220773A (en) | 2019-05-28 | 2019-05-28 | A kind of adjustable three, the universal testing machine fixture of four-point bending |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110220773A true CN110220773A (en) | 2019-09-10 |
Family
ID=67818697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910449227.7A Pending CN110220773A (en) | 2019-05-28 | 2019-05-28 | A kind of adjustable three, the universal testing machine fixture of four-point bending |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110220773A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110686984A (en) * | 2019-09-23 | 2020-01-14 | 南京航空航天大学 | Bending load test loading device and loading method for self-sealing type release joint |
| CN111579361A (en) * | 2020-06-16 | 2020-08-25 | 天津大学 | Test fixture and method for three-point bending and four-point bending of rock |
| CN111595674A (en) * | 2020-05-22 | 2020-08-28 | 合肥工业大学 | Device capable of loading various stress fields in sample and loading method |
| CN112082855A (en) * | 2020-10-26 | 2020-12-15 | 江西亮弘光电科技有限公司 | Plastic package material bending strength test fixture |
| CN113340712A (en) * | 2021-06-18 | 2021-09-03 | 中国飞机强度研究所 | Four-point loading structure |
| CN113390783A (en) * | 2021-06-24 | 2021-09-14 | 深圳市市政工程总公司 | Contraction performance detection equipment for slag soil fluidized backfill material |
| CN113418773A (en) * | 2021-06-08 | 2021-09-21 | 北京航空航天大学 | Structure-load-transmission integrated composite material four-point bending clamp and use method |
| CN114034549A (en) * | 2021-10-08 | 2022-02-11 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Bending test fixture and reliability test system |
| CN115200986A (en) * | 2022-07-29 | 2022-10-18 | 华侨大学 | Three-point bending test fixture capable of automatically aligning |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07108336A (en) * | 1993-10-13 | 1995-04-25 | Daido Steel Co Ltd | Method and device for dividing wire coil |
| US5582097A (en) * | 1995-10-20 | 1996-12-10 | Daido Steel Co., Ltd. | Method for dividing, cutting and binding wire coils |
| CN203110325U (en) * | 2013-01-18 | 2013-08-07 | 王根乐 | Automatic and manual opening and closing control device of film blowing machine guide plate |
| CN104897481A (en) * | 2015-06-12 | 2015-09-09 | 攀钢集团攀枝花钢铁研究院有限公司 | Curve detection device and detection method |
| CN206043382U (en) * | 2016-07-11 | 2017-03-29 | 宜昌九鼎牧业有限公司 | A kind of reverse-flow feed cooler |
| CN107132129A (en) * | 2017-04-26 | 2017-09-05 | 南京航空航天大学 | A kind of adjustable many suitable type three point bending test devices |
| CN207634440U (en) * | 2017-11-10 | 2018-07-20 | 新昌县城关利业机械厂 | A kind of secure mounting arrangements of hydraulic cylinder |
| CN210665269U (en) * | 2019-05-28 | 2020-06-02 | 浙江工业大学 | Adjustable fixture for three-point and four-point bending universal testing machine |
-
2019
- 2019-05-28 CN CN201910449227.7A patent/CN110220773A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07108336A (en) * | 1993-10-13 | 1995-04-25 | Daido Steel Co Ltd | Method and device for dividing wire coil |
| US5582097A (en) * | 1995-10-20 | 1996-12-10 | Daido Steel Co., Ltd. | Method for dividing, cutting and binding wire coils |
| CN203110325U (en) * | 2013-01-18 | 2013-08-07 | 王根乐 | Automatic and manual opening and closing control device of film blowing machine guide plate |
| CN104897481A (en) * | 2015-06-12 | 2015-09-09 | 攀钢集团攀枝花钢铁研究院有限公司 | Curve detection device and detection method |
| CN206043382U (en) * | 2016-07-11 | 2017-03-29 | 宜昌九鼎牧业有限公司 | A kind of reverse-flow feed cooler |
| CN107132129A (en) * | 2017-04-26 | 2017-09-05 | 南京航空航天大学 | A kind of adjustable many suitable type three point bending test devices |
| CN207634440U (en) * | 2017-11-10 | 2018-07-20 | 新昌县城关利业机械厂 | A kind of secure mounting arrangements of hydraulic cylinder |
| CN210665269U (en) * | 2019-05-28 | 2020-06-02 | 浙江工业大学 | Adjustable fixture for three-point and four-point bending universal testing machine |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110686984A (en) * | 2019-09-23 | 2020-01-14 | 南京航空航天大学 | Bending load test loading device and loading method for self-sealing type release joint |
| CN110686984B (en) * | 2019-09-23 | 2021-11-05 | 南京航空航天大学 | Bending load test loading device and loading method for self-sealing type release joint |
| CN111595674A (en) * | 2020-05-22 | 2020-08-28 | 合肥工业大学 | Device capable of loading various stress fields in sample and loading method |
| CN111579361A (en) * | 2020-06-16 | 2020-08-25 | 天津大学 | Test fixture and method for three-point bending and four-point bending of rock |
| CN112082855A (en) * | 2020-10-26 | 2020-12-15 | 江西亮弘光电科技有限公司 | Plastic package material bending strength test fixture |
| CN112082855B (en) * | 2020-10-26 | 2024-01-30 | 佛山市金骏田塑料制品有限公司 | Plastic package material bending strength test fixture |
| CN113418773A (en) * | 2021-06-08 | 2021-09-21 | 北京航空航天大学 | Structure-load-transmission integrated composite material four-point bending clamp and use method |
| CN113340712A (en) * | 2021-06-18 | 2021-09-03 | 中国飞机强度研究所 | Four-point loading structure |
| CN113390783A (en) * | 2021-06-24 | 2021-09-14 | 深圳市市政工程总公司 | Contraction performance detection equipment for slag soil fluidized backfill material |
| CN114034549A (en) * | 2021-10-08 | 2022-02-11 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Bending test fixture and reliability test system |
| CN114034549B (en) * | 2021-10-08 | 2023-10-03 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Bending test fixture and reliability test system |
| CN115200986A (en) * | 2022-07-29 | 2022-10-18 | 华侨大学 | Three-point bending test fixture capable of automatically aligning |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110220773A (en) | A kind of adjustable three, the universal testing machine fixture of four-point bending | |
| CN210665269U (en) | Adjustable fixture for three-point and four-point bending universal testing machine | |
| CN215179191U (en) | Constant stress press | |
| CN209255692U (en) | A kind of reinforcing steel bar bending tester | |
| CN109290728B (en) | Plate welding fixture | |
| CN208458749U (en) | A kind of Surveying Engineering high accuracy gyroscope instrument adjusting bracket | |
| CN220542994U (en) | Fixed knot constructs for FCT test fixture | |
| CN103394943A (en) | Clamping device for fan-shaped balance block | |
| CN211602851U (en) | Aging test fixture | |
| CN109708554B (en) | Stroke measuring clamp for performance detection of aircraft hydraulic booster | |
| CN213003503U (en) | Clamp for welding and positioning steel plate | |
| CN209021683U (en) | A kind of novel turning attachment structure | |
| CN216159784U (en) | Clamp for detecting whether workpiece hole slot is qualified or not | |
| CN218212469U (en) | Rebound tester | |
| CN220063621U (en) | Building material hardness detection device | |
| CN220872244U (en) | Positioning tool for strength detection of construction steel bars | |
| CN114535967A (en) | Four-bar linkage positioning caliper with adjustable distance and angle | |
| CN213970770U (en) | Jig for gold plating test of low-density hardware | |
| CN211785870U (en) | Line loss monitoring and analyzing device | |
| CN108500929A (en) | A kind of levelness regulating device | |
| CN217585639U (en) | Detection mechanism of crossbeam support | |
| CN219910072U (en) | Keel anchoring piece positioning device | |
| CN215727343U (en) | Concrete core appearance compression test device with locate function | |
| CN204913680U (en) | A automatic central symmetry positioner for car solenoid test machine | |
| CN211518087U (en) | Three-axis linkage is anchor clamps for cutting machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |