CN204679341U - Dynamic tensile experiment fixture - Google Patents
Dynamic tensile experiment fixture Download PDFInfo
- Publication number
- CN204679341U CN204679341U CN201520417815.XU CN201520417815U CN204679341U CN 204679341 U CN204679341 U CN 204679341U CN 201520417815 U CN201520417815 U CN 201520417815U CN 204679341 U CN204679341 U CN 204679341U
- Authority
- CN
- China
- Prior art keywords
- main clamp
- screw thread
- stationary fixture
- test specimen
- 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.)
- Expired - Fee Related
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a kind of dynamic tensile experiment fixture, comprise main clamp, intermediate plate and screw thread stationary fixture, wherein, one end perforate of main clamp, the inwall in hole is disposed with internal thread and inner conical surface from outside to inside, the periphery, one end of screw thread stationary fixture is provided with the external thread matched with main clamp internal thread, screw thread stationary fixture has the center pit passed for lath-shaped test specimen along axle center, and have the taper hole that and minimum-value aperture coaxial with center pit be greater than center pit stretching into the one end in main clamp, the intermediate plate of two panels symmetry is arranged to clamping plate strip test specimen, the profile at intermediate plate two ends respectively with the inner conical surface of main clamp and the taper hole form fit of screw thread stationary fixture, the processing of the utility model test specimen is simple, and clamping is easy to operate, and conventional efficient is high, and can be applicable to the test specimen of different-thickness.
Description
Technical field
The utility model belongs to material mechanics experiment studying technological domain, particularly a kind of dynamic tensile experiment fixture.
Background technology
In recent years, along with separate type Hopkinson pull bar (Split Hopkinson Torsion Bar, SHTB) improvement of technology, separate type hopkinson test device has become a kind of important means of current research material dynamic mechanical performance, it is based on the theory of one-dimension stress wane, carry out testing the dynamic mechanical behavior obtaining material under different strain rate, cause the extensive concern of engineering circles.
The dynamic tensile experiment that usual separate type Hopkinson pull rod device completes, substantially be prepare double thread test specimen to carry out high strain-rate experiment again, as document " Fransplass H, Langseth M, Hopperstad O S.Tensile behaviourof threaded steel fasteners at elevated rates of strain [J] .International Journal of ImpactEngineering, 2011, 53 (11): 946 – 957. " and " Feng F, Huang S, Meng Z, et al.Experimentalstudy on tensile property of AZ31B magnesium alloy at different high strain rates andtemperatures [J] .Materials & Design, 2014, 57 (5): 10 – 20. " described in, screw thread process makes the preparation process complexity of test specimen consuming time again, or be the mode that the perforate on test specimen that adopts of document " Xu Z, Li Y.A novel method in determination ofdynamic fracture toughness under mixed mode I/II impact loading [J] .International Journal ofSolids & Structures, 2012, 49:366 – 376. " and pin fix, though required experimental sample easily processing compared with the former, the stress that perforate causes is concentrated and the problem such as micro-crack generation and expansion cannot be avoided.
Utility model content
It is simple that the purpose of this utility model is to provide a kind of test specimen to process, and clamping is easy to operate, and conventional efficient is high, and can be applicable to the dynamic tensile experiment fixture of the test specimen of different-thickness.
The technical solution realizing the utility model object is:
A kind of dynamic tensile experiment fixture, comprise main clamp, intermediate plate and screw thread stationary fixture, wherein, one end perforate of main clamp, the inwall in hole is disposed with internal thread and inner conical surface from outside to inside, the periphery, one end of screw thread stationary fixture is provided with the external thread matched with main clamp internal thread, screw thread stationary fixture has the center pit passed for lath-shaped test specimen along axle center, and have the taper hole that and minimum-value aperture coaxial with center pit be greater than center pit stretching into the one end in main clamp, the intermediate plate of two panels symmetry is arranged to clamping plate strip test specimen, the profile at intermediate plate two ends respectively with the inner conical surface of main clamp and the taper hole form fit of screw thread stationary fixture.
The utility model compared with prior art, its remarkable advantage:
(1) the experiment test specimen that the utility model dynamic tensile experiment fixture adopts is lath-shaped, and processing technology is simple, convenient mounting and clamping, can avoid concentrating of stress.
(2) the utility model dynamic tensile experiment fixture main clamp, fitted by the conical surface between intermediate plate and screw thread stationary fixture, it is high to agree with degree.
(3) main clamp of the utility model dynamic tensile experiment fixture and the Hopkinson pull rod be configured and and screw thread stationary fixture between all select threaded engagement, effectively fixing, processing ease.
(4) the utility model dynamic tensile experiment fixture is applicable to the test specimen of different-thickness, can be reached in the fixing object of diverse location by the length of threaded engagement between main clamp and screw thread stationary fixture.
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the general structure schematic diagram of the utility model dynamic tensile experiment fixture.
Fig. 2 is the perspective view of the main clamp of the utility model dynamic tensile experiment fixture.
Fig. 3 is the perspective view of the intermediate plate of the utility model dynamic tensile experiment fixture.
Fig. 4 is the perspective view of the screw thread stationary fixture of the utility model dynamic tensile experiment fixture.
Embodiment
Composition graphs 1 ~ Fig. 4:
A kind of dynamic tensile experiment fixture of the utility model, comprise main clamp 1, intermediate plate 2 and screw thread stationary fixture 3, wherein, one end of main clamp 1 is provided with the external thread being configured in and being connected with Hopkinson pull rod, other end perforate, the inwall in hole is disposed with internal thread and inner conical surface from outside to inside, the periphery, one end of screw thread stationary fixture 3 is provided with the external thread matched with main clamp 1 internal thread, screw thread stationary fixture 3 has the center pit passed for lath-shaped test specimen 4 along axle center, and have the taper hole that and minimum-value aperture coaxial with center pit be greater than center pit stretching into the one end in main clamp 1, the intermediate plate 2 of two panels symmetry is arranged to clamping plate strip test specimen 4, the profile at intermediate plate 2 two ends respectively with the inner conical surface of main clamp 1 and the taper hole form fit of screw thread stationary fixture 3.
Standard:
Main clamp 1 is threaded connection with the Hopkinson pull rod configured, and lath-shaped test specimen 4 clamps by two pieces of symmetrical intermediate plates 2, fits with the main clamp 1 endoporus conical surface; Screw thread stationary fixture 3 conical surface and intermediate plate 2 are fitted, and its external thread is by reaching fixing object with main clamp 1 screw-internal thread fit.
Experimental implementation:
Before experiment, detected materials is cut into the lath-shaped test specimen 4 of one fixed width, its size must be less than the size of screw thread stationary fixture 3 center pit, put into main clamp 1 after two pieces of symmetrical intermediate plates 2 are clamped test specimen, by cone match, then main clamp 1 is assemblied on pull bar, screw thread stationary fixture 3 is screwed in main clamp 1, the conical surface of screw thread stationary fixture 3 internal taper hole and the conical surface of intermediate plate 2 are agreed with, makes it fix and ensure that test specimen slippage can not occur, complete high strain-rate experiment by dynamic tensile.
Claims (2)
1. a dynamic tensile experiment fixture, it is characterized in that: comprise main clamp (1), intermediate plate (2) and screw thread stationary fixture (3), wherein, one end perforate of main clamp (1), the inwall in hole is disposed with internal thread and inner conical surface from outside to inside, the periphery, one end of screw thread stationary fixture (3) is provided with the external thread matched with main clamp (1) internal thread, screw thread stationary fixture (3) has the center pit passed for lath-shaped test specimen (4) along axle center, and have the taper hole that and minimum-value aperture coaxial with center pit be greater than center pit stretching into the one end in main clamp (1), the intermediate plate (2) of two panels symmetry is arranged to clamping plate strip test specimen (4), the profile at intermediate plate (2) two ends respectively with the inner conical surface of main clamp (1) and the taper hole form fit of screw thread stationary fixture (3).
2. dynamic tensile experiment fixture according to claim 1, is characterized in that: one end of described main clamp (1) is provided with the external thread being configured in and being connected with Hopkinson pull rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520417815.XU CN204679341U (en) | 2015-06-16 | 2015-06-16 | Dynamic tensile experiment fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520417815.XU CN204679341U (en) | 2015-06-16 | 2015-06-16 | Dynamic tensile experiment fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204679341U true CN204679341U (en) | 2015-09-30 |
Family
ID=54179024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520417815.XU Expired - Fee Related CN204679341U (en) | 2015-06-16 | 2015-06-16 | Dynamic tensile experiment fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204679341U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897461A (en) * | 2015-06-16 | 2015-09-09 | 南京理工大学 | Dynamic tension experiment fixture |
| CN107121332A (en) * | 2017-06-07 | 2017-09-01 | 南京理工大学 | Servicing unit for split hopkinson press bar testing equipment |
| CN109030194A (en) * | 2018-08-01 | 2018-12-18 | 长沙理工大学 | A assembled anchor clamps for fatigue crack growth rate test |
-
2015
- 2015-06-16 CN CN201520417815.XU patent/CN204679341U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897461A (en) * | 2015-06-16 | 2015-09-09 | 南京理工大学 | Dynamic tension experiment fixture |
| CN107121332A (en) * | 2017-06-07 | 2017-09-01 | 南京理工大学 | Servicing unit for split hopkinson press bar testing equipment |
| CN107121332B (en) * | 2017-06-07 | 2023-08-08 | 南京理工大学 | Auxiliary device for separated Hopkinson pressure bar test equipment |
| CN109030194A (en) * | 2018-08-01 | 2018-12-18 | 长沙理工大学 | A assembled anchor clamps for fatigue crack growth rate test |
| CN109030194B (en) * | 2018-08-01 | 2023-12-15 | 长沙理工大学 | Assembled fixture for fatigue crack growth rate test |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104897461A (en) | Dynamic tension experiment fixture | |
| CN204679341U (en) | Dynamic tensile experiment fixture | |
| CN202735159U (en) | Detecting clamp for high strength bolt fastener load-guarantee | |
| CN203858156U (en) | Clamp device for measuring shear strength of lapped joint | |
| CN102507343B (en) | Test piece for shape memory alloy pulling and twisting experiment, fixture and device therefor | |
| CN202522475U (en) | Steel wire rope breaking force test fixture | |
| CN201281681Y (en) | Non-metal compression performance test jig | |
| CN103175733B (en) | Direct tensile test jag of incompressible material | |
| CN103471938A (en) | T-shaped Hopkinson torsion bar device | |
| CN202735158U (en) | Tensile strength detecting clamp of double thread screw | |
| CN202928879U (en) | Small experiment clamping device characterizing mechanical properties of metal materials by pressure lever method | |
| CN210037417U (en) | Disconnect-type hopkinson pull rod anchor clamps | |
| CN104142203B (en) | Tight locking nut loose moment testing method and this test frock of unloading axial force | |
| CN201716232U (en) | Water-cooled clamp for high-temperature fatigue test of metal plate-shaped sample | |
| CN203350115U (en) | Clamp for cyclic stretching, compression and torsion integrated test of advanced material under hygrothermal environment | |
| CN204882223U (en) | But loosening wedge load test anchor clamps | |
| CN203941060U (en) | Frock clamp is used in test of fibre reinforced composite low temperature mechanical tensile properties | |
| CN218330941U (en) | Clamp for electromagnetic loading dynamic tensile test | |
| CN204177664U (en) | A kind of aligning device for sheet coupon tension test | |
| CN107121332B (en) | Auxiliary device for separated Hopkinson pressure bar test equipment | |
| CN102909688A (en) | Special tool for assembling and disassembling connecting pin of turn table and suspension arm | |
| CN202735160U (en) | Tensile strength detecting clamp of high strength bolt | |
| CN203414338U (en) | Auxiliary device of rare earth magnesium alloy tensile sample | |
| CN201188078Y (en) | Special fixture for tensile test of high intensity steels | |
| CN202548002U (en) | Auxiliary drawing tool for standard thread tension test piece |
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: 20150930 Termination date: 20170616 |