CN202974764U - Stress test device of composite material profiled piece - Google Patents
Stress test device of composite material profiled piece Download PDFInfo
- Publication number
- CN202974764U CN202974764U CN 201220689809 CN201220689809U CN202974764U CN 202974764 U CN202974764 U CN 202974764U CN 201220689809 CN201220689809 CN 201220689809 CN 201220689809 U CN201220689809 U CN 201220689809U CN 202974764 U CN202974764 U CN 202974764U
- Authority
- CN
- China
- Prior art keywords
- composite material
- hole
- clamping block
- upper clamping
- material special
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a stress test device of a composite material profiled piece. The device comprises an upper clamping block, a lower clamping block, two lug plates and a tensile rod, wherein a first perforating groove is formed in the lower part of the upper clamping block which is provided with a threaded hole, a second perforating groove is formed in the upper part of the lower clamping block which is provided with a through hole, the upper and lower clamping blocks are connected by a bolt which orderly perforates through the through hole and the threaded hole from the bottom to up, the two lug plates are both arranged on the upper clamping block in parallel and are both provided with first connecting holes, one end of the tensile rod is provided with a second connecting hole and the other end of the tensile rod is provided with a positioning hole, and one end of the tensile rod is arranged between the two lug plates and is in hinged connection with the lug plates by pins which perforate through the first and second connecting holes. The stress test device of the composite profiled piece, disclosed by the utility model, is reasonable in structure and design, easy and convenient to operate and fast and convenient for testing, and is capable of well realizing a stress test for the composite material profiled piece and exactly reflecting the mechanical property of the profiled piece.
Description
Technical field
The utility model relates to a kind of forces testing device, especially relates to a kind of composite material special spare forces testing device.
Background technology
Compound substance has the advantages such as high-strength light, excellent in durability, can satisfy the specific (special) requirements of functional material, key structure material, a kind of high performance structures, functional composite material, obtain extensive application on critical component in space flight, aviation and national defence field, and become the critical support material of advanced space flight, aviation.Yet, Aero-Space are abominable with compound substance work environment, performance requirement is very strict, the connection load-carrying construction of material particularly, bear larger stretching, compression, shearing equal stress when work, in case failure will directly cause aircraft out of control, has influence on the success or failure of whole system work.Therefore, accurate for the stressing conditions of compound substance profiled piece, authentic testing is extremely important.
At present, the Mechanics Performance Testing of compound substance syndeton is adopted at the tabular sample sampling, carries out respectively the tests such as tensile property, compression performance, cutting performance on universal testing machine, the approximate mechanical property that characterizes composite material special spare.Profiled piece for compound substance similar " L " type, the precast body at position and the precursor structure of almost plane of turning round there are differences, plane plate specimen tensile property test result can not reflect material syndeton tensile property fully, therefore need to test " turning round " position mechanical property, satisfy the meaning that legitimate reading, checking analog result are grasped in actual measurement.Abnormally-structured for similar " L " type, common tensile test device clamping difficulty can not realize during stretching that centering loads, unrealized complete stretching action, the performance of surveying can not truly reflect the mechanical property of composite material special spare.
The utility model content
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, a kind of composite material special spare forces testing device is provided, it is simple in structure, reasonable in design and use easy and simple to handle, test quick, easy, can be good at realizing the forces testing to composite material special spare, accurately reflect the mechanical property of composite material special spare.
for achieving the above object, the technical solution adopted in the utility model is: a kind of composite material special spare forces testing device, it is characterized in that: comprise upper clamping block, lower clamp, otic placode and stretching bar, the bottom of described upper clamping block has first and connects groove, be provided with threaded hole on described upper clamping block, the top of described lower clamp has second and connects groove, be provided with through hole on described lower clamp, described first connects groove and second connects the clamping slot that groove is oppositely arranged and is formed for to clamp composite material special spare to be tested, the quantity of described threaded hole and through hole equates and is four, described threaded hole and through hole are located on the same line, described upper clamping block and lower clamp are bolted, described bolt passes through hole and threaded hole from the bottom to top successively, the quantity of described otic placode is two, two described otic placodes be arranged in parallel and all are fixedly mounted on upper clamping block, have the first connecting hole on described otic placode, one end of described stretching bar has the second connecting hole, the other end of described stretching bar has pilot hole, one end of described stretching bar is between two otic placodes and hinged by pin and otic placode, described pin passes the first connecting hole and the second connecting hole.
Above-mentioned a kind of composite material special spare forces testing device is characterized in that: the described first inside that connects groove and the second perforation groove is provided with sheet rubber, and the thickness of described sheet rubber is 0.5mm～1.0mm.
Above-mentioned a kind of composite material special spare forces testing device, it is characterized in that: described upper clamping block and lower clamp are square iron plate, four described threaded holes are symmetricly set on four angles of upper clamping block, and four described through holes are symmetricly set on four angles of lower clamp.
Above-mentioned a kind of composite material special spare forces testing device, it is characterized in that: described the first connecting hole is opened the middle part at otic placode.
Above-mentioned a kind of composite material special spare forces testing device is characterized in that: described otic placode be shaped as square.
The utility model compared with prior art has the following advantages:
1, the utility model is simple in structure, test is fast and convenient, can be good at realizing the forces testing to composite material special spare, accurately reflects the mechanical property of composite material special spare.
2, the utility model applicability is stronger, can be applicable to multiple profiled piece structure, only need the second perforation groove that first on upper clamping block connects on groove and lower clamp is changed, make the first clamping slot that connects groove and the second perforation groove formation match with composite material special spare to be tested, the stretching bar remains unchanged, connected mode, test process all need not to change, and can use; When using the utility model can guarantee fully that same composite material special spare structural adjustment to be tested (as profile, angle etc.) changes, the consistance of test findings, reliability.
3, the utility model can effectively solve available technology adopting in the approximate problem that composite material special spare mechanical property there are differences, can not reflect fully material syndeton tensile property, the reliable test result of characterizing of tabular sample sampling.
Below by drawings and Examples, the utility model is described in further detail.
Description of drawings
Fig. 1 is use constitutional diagram of the present utility model.
Fig. 2 is the right view of Fig. 1.
Fig. 3 is vertical view of the present utility model.
Fig. 4 is the annexation schematic diagram of the utility model upper clamping block and otic placode.
Fig. 5 is the left view of Fig. 4.
Fig. 6 is the structural representation of clamp under the utility model.
Fig. 7 is the structural representation of the utility model stretching bar.
Description of reference numerals:
1-stretching bar; 1-1-second connecting hole; 1-2-pilot hole;
2-bolt; 3-upper clamping block; 3-1-first connects groove;
The 3-2-threaded hole; Clamp under 4-; 4-1-second connects groove;
4-2-through hole; 5-composite material special spare to be tested; 6-otic placode;
6-1-the first connecting hole; The 7-sheet rubber; The 8-pin.
Embodiment
as extremely shown in Figure 7 in Fig. 1, the utility model comprises upper clamping block 3, lower clamp 4, otic placode 6 and stretching bar 1, the bottom of described upper clamping block 3 has first and connects groove 3-1, be provided with threaded hole 3-2 on described upper clamping block 3, the top of described lower clamp 4 has second and connects groove 4-1, be provided with through hole 4-2 on described lower clamp 4, described first connects groove 3-1 and second connects the clamping slot that groove 4-1 is oppositely arranged and is formed for to clamp composite material special spare 5 to be tested, the quantity of described threaded hole 3-2 and through hole 4-2 equates and is four, described threaded hole 3-2 and through hole 4-2 are located on the same line, described upper clamping block 3 connects by bolt 2 with lower clamp 4, described bolt 2 passes through hole 4-2 and threaded hole 3-2 from the bottom to top successively, the quantity of described otic placode 6 is two, two described otic placodes 6 be arranged in parallel and all are fixedly mounted on upper clamping block 3, have the first connecting hole 6-1 on described otic placode 6, one end of described stretching bar 1 has the second connecting hole 1-1, the other end of described stretching bar 1 has pilot hole 1-2, one end of described stretching bar 1 is between two otic placodes 6 and hinged by pin 8 and otic placode 6, described pin 8 passes the first connecting hole 6-1 and the second connecting hole 1-1.
As shown in Figure 5 and Figure 6, preferably, the described first inside that connects groove 3-1 and the second perforation groove 4-1 is provided with sheet rubber 7, prevent that upper clamping block 3 from contacting with composite material special spare 5 to be tested firmly with lower clamp 4, avoid composite material special spare 5 folders to be tested tightly or excessively not clamp and damage.During actual fabrication, the thickness of described sheet rubber 7 can be made as 0.5mm～1.0mm.
In the present embodiment, described upper clamping block 3 and lower clamp 4 are square iron plate, and four described threaded hole 3-2 are symmetricly set on four angles of upper clamping block 3, and four described through hole 4-2 are symmetricly set on four angles of lower clamp 4.
As shown in Figure 4, described the first connecting hole 6-1 opens the middle part at otic placode 6.
As shown in Figure 4, described otic placode 6 is shaped as square.
During actual fabrication, the first Machining of Curved Surface shape that connects groove 3-1 and the second perforation groove 4-1 should match with composite material special spare 5 to be tested, in order to composite material special spare 5 to be tested is clamped.
the course of work of the present utility model is: back out bolt 2, one end of composite material special spare to be tested (C/C composite material special spare, ceramic matric composite shaped piece or polymer matrix composites shaped piece) 5 is placed in the clamping slot that is formed by the first perforation groove 3-1 and the second perforation groove 4-1, then the bolt 2 of slowly screwing on, the stressed size of bolt 2 are unlikely to composite material special spare 5 to be tested that folder splits and not slippage of process of the test is as the criterion, then by the pin that is arranged in pilot hole 1-2, the crossbeam that the utility model and universal material add carrier aircraft is connected, the other end of composite material special spare 5 to be tested is put into testing machine dovetail grooved self-clamping fixture, keep the center line of the other end (stretch end) of composite material special spare 5 to be tested and the center line of stretching bar 1 to be located on the same line during clamping, before formal the stretching, first apply the approximately tensile load of 100N, guarantee between pin 8 and stretching bar 1, between composite material special spare 5 to be tested and upper clamping block 3 and lower clamp 4, closely cooperate between composite material special spare 5 to be tested and testing machine dovetail grooved self-clamping fixture, universal material adds carrier aircraft and loads tensile force with the loading speed of 2mm/s and carry out forces testing, obtain the stress-strain curve of composite material special spare 5 drawing process to be tested.Because stretching bar 1 is hinged by pin 8 and otic placode 6, the bar 1 that therefore stretches can 180 ° freely rotates, and the free rotation of stretching bar 1 can guarantee to adapt to the differently curved angle of composite material special spare 5 to be tested.
The above; it is only preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; every according to the utility model technical spirit to any simple modification, change and equivalent structure transformation that above embodiment does, all still belong in the protection domain of technical solutions of the utility model.
Claims (5)
1. composite material special spare forces testing device, it is characterized in that: comprise upper clamping block (3), lower clamp (4), otic placode (6) and stretching bar (1), the bottom of described upper clamping block (3) has first and connects groove (3-1), be provided with threaded hole (3-2) on described upper clamping block (3), the top of described lower clamp (4) has second and connects groove (4-1), be provided with through hole (4-2) on described lower clamp (4), described first connects groove (3-1) and second connects the clamping slot that groove (4-1) is oppositely arranged and is formed for to clamp composite material special spare to be tested (5), the quantity of described threaded hole (3-2) and through hole (4-2) equates and is four, described threaded hole (3-2) and through hole (4-2) are located on the same line, described upper clamping block (3) connects by bolt (2) with lower clamp (4), described bolt (2) passes through hole (4-2) and threaded hole (3-2) from the bottom to top successively, the quantity of described otic placode (6) is two, two described otic placodes (6) be arranged in parallel and all are fixedly mounted on upper clamping block (3), have the first connecting hole (6-1) on described otic placode (6), one end of described stretching bar (1) has the second connecting hole (1-1), the other end of described stretching bar (1) has pilot hole (1-2), one end of described stretching bar (1) is positioned between two otic placodes (6) and is hinged by pin (8) and otic placode (6), described pin (8) passes the first connecting hole (6-1) and the second connecting hole (1-1).
2. according to a kind of composite material special spare forces testing device claimed in claim 1, it is characterized in that: the described first inside that connects groove (3-1) and the second perforation groove (4-1) is provided with sheet rubber (7), and the thickness of described sheet rubber (7) is 0.5mm～1.0mm.
3. according to the described a kind of composite material special spare forces testing device of claim 1 or 2, it is characterized in that: described upper clamping block (3) and lower clamp (4) are square iron plate, four described threaded holes (3-2) are symmetricly set on four angles of upper clamping block (3), and four described through holes (4-2) are symmetricly set on four angles of lower clamp (4).
4. according to the described a kind of composite material special spare forces testing device of claim 1 or 2, it is characterized in that: described the first connecting hole (6-1) is opened the middle part in otic placode (6).
5. according to the described a kind of composite material special spare forces testing device of claim 1 or 2, it is characterized in that: described otic placode (6) be shaped as square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220689809 CN202974764U (en) | 2012-12-13 | 2012-12-13 | Stress test device of composite material profiled piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220689809 CN202974764U (en) | 2012-12-13 | 2012-12-13 | Stress test device of composite material profiled piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202974764U true CN202974764U (en) | 2013-06-05 |
Family
ID=48515822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220689809 Expired - Lifetime CN202974764U (en) | 2012-12-13 | 2012-12-13 | Stress test device of composite material profiled piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202974764U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698208A (en) * | 2013-12-25 | 2014-04-02 | 天津大学 | Combination fixture for testing six-degree of freedom rigidity of special component |
| CN105004609A (en) * | 2015-08-25 | 2015-10-28 | 吉林大学 | Composite material car body embedded part strength test fixture |
| CN106680118A (en) * | 2017-01-13 | 2017-05-17 | 辽宁忠旺铝合金精深加工有限公司 | Fatigue testing method for rail transportation vehicle body welding structure |
| CN106840859A (en) * | 2015-12-07 | 2017-06-13 | 中国科学院宁波材料技术与工程研究所 | Antarafacial stretching clamp |
| CN107389461A (en) * | 2017-07-21 | 2017-11-24 | 中联精工（天津）有限公司 | A kind of shaped piece pull force calculation machine |
| CN107421804A (en) * | 2016-05-24 | 2017-12-01 | 北京航空航天大学 | Sweep body test fixture and sweep body test fixture |
| CN109870300A (en) * | 2019-04-04 | 2019-06-11 | 广东电网有限责任公司 | It is a kind of for detecting the test piece and test method of closed fixture |
-
2012
- 2012-12-13 CN CN 201220689809 patent/CN202974764U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698208A (en) * | 2013-12-25 | 2014-04-02 | 天津大学 | Combination fixture for testing six-degree of freedom rigidity of special component |
| CN103698208B (en) * | 2013-12-25 | 2015-08-19 | 天津大学 | A kind of built-up jig for special-shaped component six degree of freedom rigidity test |
| CN105004609A (en) * | 2015-08-25 | 2015-10-28 | 吉林大学 | Composite material car body embedded part strength test fixture |
| CN105004609B (en) * | 2015-08-25 | 2017-11-14 | 吉林大学 | A kind of composite-material body built-in fitting strength test fixture |
| CN106840859A (en) * | 2015-12-07 | 2017-06-13 | 中国科学院宁波材料技术与工程研究所 | Antarafacial stretching clamp |
| CN107421804A (en) * | 2016-05-24 | 2017-12-01 | 北京航空航天大学 | Sweep body test fixture and sweep body test fixture |
| CN106680118A (en) * | 2017-01-13 | 2017-05-17 | 辽宁忠旺铝合金精深加工有限公司 | Fatigue testing method for rail transportation vehicle body welding structure |
| CN106680118B (en) * | 2017-01-13 | 2019-05-24 | 辽宁忠旺铝合金精深加工有限公司 | Rail transit vehicle body welding structure method for testing fatigue |
| CN107389461A (en) * | 2017-07-21 | 2017-11-24 | 中联精工（天津）有限公司 | A kind of shaped piece pull force calculation machine |
| CN107389461B (en) * | 2017-07-21 | 2023-10-24 | 大川精工(朝阳)有限公司 | Pulling force detects machine for dysmorphism piece |
| CN109870300A (en) * | 2019-04-04 | 2019-06-11 | 广东电网有限责任公司 | It is a kind of for detecting the test piece and test method of closed fixture |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202974764U (en) | Stress test device of composite material profiled piece | |
| CN201477012U (en) | Clamping apparatus for variable-angle shear test | |
| CN202177546U (en) | Stretching clamp | |
| CN207268691U (en) | A kind of thin plate test specimen tensile test fixture | |
| CN102156069B (en) | Clamp for mixed fracture test of dual-phase material interface | |
| CN203241295U (en) | Self-centering four-point bending fatigue test fixture for small samples | |
| CN212180452U (en) | Clamp for testing compression stability of honeycomb wallboard | |
| CN201615858U (en) | Novel clamp for tensile testing machine | |
| CN204439350U (en) | Gearshift endurance testing device | |
| CN204536101U (en) | A kind of for the plate type tensile specimen of Metal Materials At High Temperature tensile property test and the syndeton of fixture | |
| CN105021450A (en) | Multi-sample parallel experiment clamp for providing continuous clamp force | |
| CN102901667B (en) | A kind of biphase interface tension test fixture and method of testing | |
| CN106168472B (en) | Cuboid sample lateral displacement measuring device | |
| CN107677541B (en) | Clamp for improving centering precision of carbon fiber composite material compression test piece | |
| CN104764663A (en) | Blade stretching testing machine | |
| CN204165831U (en) | A kind of for testing V-type open beam sample testing shear performance fixture | |
| CN203908870U (en) | Fatigue test clamp for thick aluminum alloy board | |
| CN216747116U (en) | Viscoelastic material bonding interface multi-angle fixed load test fixture | |
| CN201811893U (en) | Sample mould mechanism of shear strength of silicone sealant | |
| CN203587434U (en) | Flat-pressing test clamp for sandwich panels | |
| CN201697835U (en) | Connecting structure of round sample stretching test device | |
| CN204255632U (en) | Test unit on a kind of testing machine | |
| CN209014383U (en) | Deck paving interlayer shear strength test code test fixture | |
| CN102252812A (en) | Device for testing strength and distortion of thin-wall part | |
| CN207300729U (en) | Improve carbon fibre composite compression test test specimen accuracy of alignment fixture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |