CN206161424U - Extensometer clamping device that can install and remove fast - Google Patents
Extensometer clamping device that can install and remove fast Download PDFInfo
- Publication number
- CN206161424U CN206161424U CN201621089942.2U CN201621089942U CN206161424U CN 206161424 U CN206161424 U CN 206161424U CN 201621089942 U CN201621089942 U CN 201621089942U CN 206161424 U CN206161424 U CN 206161424U
- Authority
- CN
- China
- Prior art keywords
- extensometer
- hole
- spring
- bonding jumper
- metal strip
- 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
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to an extensometer clamping device that can install and remove fast, it mainly comprises U type metal strip, card post, spring, countersunk screw. U type metal strip appearance is the U type, has two vertical card posts at its breach end band, the card cylinder is the cylinder curved surface to a side surface of U type metal strip breach, and card toe portion has a convex barb to hook the sheetmetal at extensometer cutting edge back, two circular through -holes of level that have the symmetry are bored at the parallel section middle part of U type metal strip, and it has the vertical screw thread through -hole rather than lining up to open simultaneously, fix the inboard at U type metal strip through circular through -hole of level and vertical screw thread through -hole with the spring level, pack the ring shape hook at spring both ends respectively into in the horizontal through -hole of U type metal strip both sides, and make ring shape hook just to vertical screw hole. The utility model discloses simple structure, the easily production, it is with low costs, can realize the installation and the dismantlement of extensometer fast safely, clamping -force is stable, can ensure that the extensometer edge of a knife and test piece are not quite smooth, connects reliably.
Description
Technical field
This utility model is related to a kind of quickly assembled and disassembled clamping extensometer device, for installing the fixture of extensometer, category
In mechanical clamp device.
Background technology
At present, the tension test of material is carried out in laboratory, when measuring the load-deformation curve of material, needs installation to draw
Stretch measurement amount test piece deformation amount.When extensometer is installed, on two displacement transfer bars of specimen equidistance line marking section two ends and extensometer
Blade is connected, and the deflection of specimen equidistance line marking section passes to the flexible member in extensometer, and resistance strain gage is by deformation element
Strain is converted into the variable quantity of resistance, and by circuit voltage signal is translated into.At present the Material Testing Machine of some brands is matched somebody with somebody
There are special extensometer and its clamping device, but the more common extensometer that substantial amounts of Material Testing Machine is equipped with, these draw
Stretch meter to be, without special clamping device, is fixed on test specimen by rubber band when using, and it has the disadvantage：Using not side
Just, handss are easily hindered, service life is short, and chucking power is unstable.
The content of the invention
The purpose of this utility model be in order to overcome the shortcomings of prior art exist, there is provided a kind of quickly assembled and disassembled extends
Meter clamping device, it is adaptable to which Measurement of Material Mechanical Performance is tested, and realizes being rapidly assembled and disassembled for extensometer, and with certain
Versatility.The clamping devices that safe and reliable, convenient assembly and disassembly are provided are used for existing general extensometer.
This utility model is employed the following technical solutions：
A kind of quickly assembled and disassembled clamping extensometer device of this utility model, mainly by U-shaped bonding jumper, card column, spring, heavy
Head screw composition.The U-shaped bonding jumper profile is U-shaped, and at its breach end two vertical card columns are carried；Card column is towards U-shaped gold
One side surface of category bar breach is Cylinder Surface, and the metal at the barbs hold extensometer blade back of a protrusion is arranged at card column bottom
Piece, makes to be integral with；U-shaped bonding jumper parallel-segment middle part is drilled with the horizontal manhole of symmetrical two, while being provided with and it
The vertical tapped through hole of insertion；Spring horizontal is fixed on by U-shaped bonding jumper by horizontal manhole and vertical tapped through hole
Inner side；The coefficient of elasticity of spring is larger, and its two ends carries sizeable annular hook, and the annular hook of both ends of the spring is distinguished
In being fitted into the horizontal through hole of U-shaped bonding jumper both sides, and annular hook is caused just to vertical screwed hole；In each vertical screwed hole
In, be screwed into a middle part and do not have threaded sunk screw so that the annular rhampotheca of spring sunk screw do not have it is threaded in
Portion.Middle part do not have threaded sunk screw will not restricted spring moving up and down and rotate.The bullet being fixed on the inside of U-shaped bonding jumper
Spring is already at elongation state, it is ensured that in clamping test pieces and extensometer, there is sufficiently large and suitable chucking power.It is solid so as to play
Effect that is fixed and preventing relative slip.
Advantages of the present utility model：1st, clamping extensometer apparatus structure is simple, it is easy to produce, low cost；2、
During the mechanical property of measurement material, the installation and removal of extensometer can be quickly and safely realized；3rd, chucking power is stable, can ensure that and draws
Stretch the meter edge of a knife not sliding very much with test specimen, connection is reliable；4th, restricted spring not moving up and down and rotating screw, do not affect test specimen from
Dynamic regulation of mental activities and extensometer certainty of measurement.
Description of the drawings
Fig. 1 is a kind of structural representation of quickly assembled and disassembled clamping extensometer device of this utility model；
Fig. 2 is U-shaped bonding jumper structural representation of the present utility model；
Fig. 3 be spring of the present utility model with U-shaped bonding jumper on sunk screw connection diagram；
Fig. 4 is the architecture figure of clamping extensometer of the present utility model and test specimen.
In figure：1.U type bonding jumpers；2. card column；3. Cylinder Surface；4. barb；5. spring；6. horizontal manhole；7. erect
Straight thread through hole；8. sunk screw；9. test specimen；10. extensometer；11. edges of a knife；12. sheet metals.
Specific embodiment
Below in conjunction with the accompanying drawings the utility model is described in further detail：
As shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of quickly assembled and disassembled clamping extensometer device of this utility model, mainly by
U-shaped bonding jumper 1, card column 2, spring 5, sunk screw 8 are constituted.The profile of U-shaped bonding jumper 1 is U-shaped, and at its breach end two are carried
Individual vertical card column 2；Card column 2 is Cylinder Surface towards a side surface of the breach of U-shaped bonding jumper 1, and a protrusion is arranged at card column bottom
Barb 4 hooks the sheet metal 12 at the blade back of extensometer 10, makes to be integral with；It is right that the parallel-segment of U-shaped bonding jumper 1 middle part is drilled with
The two horizontal manholes 6 for claiming, while being provided with the vertical tapped through hole 7 with its insertion；By horizontal manhole 6 and vertically
Spring 5 is horizontally fixed on tapped through hole 7 inner side of U-shaped bonding jumper 1；The coefficient of elasticity of spring 5 is larger, and its two ends carries size
Suitable annular hook, the annular hook at the two ends of spring 5 is respectively charged in the horizontal manhole 6 of the both sides of U-shaped bonding jumper 1,
And annular hook is caused just to vertical tapped through hole 7, in each vertical screwed hole, it is screwed into a middle part and does not have threaded sinking
Head screw 8 so that the annular rhampotheca of spring 5 does not have threaded middle part in sunk screw 8；Middle part does not have threaded sunk screw
8 will not restricted spring 5 moving up and down and rotate；The spring 5 of the inner side of U-shaped bonding jumper 1 is fixed on already at elongation state, really
Protect has sufficiently large and suitable chucking power in clamping test pieces 9 and extensometer 10.So as to playing fixed and preventing what is slided relatively
Effect.
The rectangular cross-section of U-shaped bonding jumper 1, the outside of card column 2 is plane, is the face of cylinder near test specimen side, can make card column 2 more
Fit well the sheet metal 12 at extensometer edge of a knife back；The low side of card column 2 has barb 4, with the reliability for ensureing to connect；Level is circular logical
Hole 6 and vertical tapped through hole 7 run through.
Installation process：With a hand-held firmly extensometer 10, the edge of a knife 11 is leaned against into respectively the two ends of the gauge length section of test specimen 9；It is another
Only it is hand-held live clamping extensometer device, U-shaped mouth just to one end of the gauge length section of test specimen 11, with the extensometer edge of a knife in same level
On, and push U-shaped bonding jumper 1 to test specimen 9 along opening direction, the sheet metal 12 for making the barb 4 of card column 2 clasp on the extensometer edge of a knife
Back, the now elastic deformation of spring 5 increases, and then completes the fixation of test specimen 9 and extensometer 10.
Uninstall process：After the completion of experiment, U-shaped bonding jumper 1 is continued to push to by a hand-held firmly extensometer 10 with another handss
Test specimen, the sheet metal 12 for making the barb 4 of card column 2 depart from the extensometer edge of a knife, you can clamping device is pulled down, from removing extensometer
10。
The preservation of clamping device：At ordinary times, when being tested, this device is placed in drying receptacle and is preserved, in order to avoid accumulation
Dust and moisture in air, produces corrosion.If after being relaxed using generation spring 5 because of long term frequent, replaceable spring 5.
Claims (3)
1. a kind of quickly assembled and disassembled clamping extensometer device, mainly by U-shaped bonding jumper (1), card column (2), spring (5), countersunk head
Screw (8) is constituted, it is characterised in that：U-shaped bonding jumper (1) profile is U-shaped, and at its breach end two vertical card columns are carried
(2)；Card column (2) is Cylinder Surface towards a side surface of U-shaped bonding jumper (1) breach, and the barb of a protrusion is arranged at card column (2) bottom
(4) sheet metal (12) at extensometer (10) blade back is hooked；U-shaped bonding jumper (1) parallel-segment middle part is drilled with symmetrical two water
Discoid through hole (6), while being provided with the vertical tapped through hole (7) with its insertion；By horizontal manhole (6) and vertical screw thread
Spring (5) is horizontally fixed on through hole (7) inner side of U-shaped bonding jumper (1)；The annular hook at spring (5) two ends is respectively charged into into U
In the horizontal manhole (6) of type bonding jumper (1) both sides, and annular hook is caused just to vertical tapped through hole (7)；It is fixed on U
Spring (5) on the inside of type bonding jumper (1) is already at elongation state, it is ensured that have foot in clamping test pieces (9) and extensometer (10)
Enough big and suitable chucking powers.
2. a kind of quickly assembled and disassembled clamping extensometer device according to claim 1, it is characterised in that：It is vertical at each
Screwed hole in, be screwed into a middle part and do not have threaded sunk screw (8) so that the annular rhampotheca of spring (5) is in countersunk head spiral shell
Nail (8) does not have threaded middle part.
3. a kind of quickly assembled and disassembled clamping extensometer device according to claim 1, it is characterised in that：U-shaped bonding jumper
(1) rectangular cross-section；Card column (2) outside is plane, is the face of cylinder near test specimen side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621089942.2U CN206161424U (en) | 2016-09-29 | 2016-09-29 | Extensometer clamping device that can install and remove fast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621089942.2U CN206161424U (en) | 2016-09-29 | 2016-09-29 | Extensometer clamping device that can install and remove fast |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206161424U true CN206161424U (en) | 2017-05-10 |
Family
ID=58652137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621089942.2U Expired - Fee Related CN206161424U (en) | 2016-09-29 | 2016-09-29 | Extensometer clamping device that can install and remove fast |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206161424U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109060518A (en) * | 2018-10-29 | 2018-12-21 | 常熟正昊电子科技有限公司 | A kind of tensile test fixture of long test specimen |
-
2016
- 2016-09-29 CN CN201621089942.2U patent/CN206161424U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109060518A (en) * | 2018-10-29 | 2018-12-21 | 常熟正昊电子科技有限公司 | A kind of tensile test fixture of long test specimen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170510 Termination date: 20170929 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |