CN207231893U - A kind of metal stretching detection device - Google Patents
A kind of metal stretching detection device Download PDFInfo
- Publication number
- CN207231893U CN207231893U CN201721203506.8U CN201721203506U CN207231893U CN 207231893 U CN207231893 U CN 207231893U CN 201721203506 U CN201721203506 U CN 201721203506U CN 207231893 U CN207231893 U CN 207231893U
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- cavity
- fixture
- wedge
- wall
- detection device
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Abstract
The utility model discloses a kind of metal stretching detection device, including body, heating unit, extensometer, upper fixture and lower fixture；The heating unit is arranged on rack left side wall, bocca is provided with heating unit, extensometer is installed on the sliding support of the body opposite side, the upper fixture is fixed on the crossbeam of body by upper connecting rod, lower fixture is fixed on the chassis of body by lower connecting rod, the bare terminal end of two fixtures is provided with cavity, circular mounting hole is provided with cavity end, circular mounting hole is communicated with cavity, multiple wedge-shaped fixture blocks placed vertically are equipped with cavity, screw is equipped between wedge-shaped fixture block and chamber outer wall, chamber outer wall is equipped with bolt hole, one end of screw passes through bolt hole.The utility model dismounting is convenient, avoids the slip of sample and cracking during high temperature tension test, service life length, test result accurately and reliably, shortens the test period, reduces testing cost, versatile.
Description
Technical field
Metal stretching detection technique field is the utility model is related to, is specifically a kind of metal stretching detection device.
Background technology
During the use of tubing, generally require to carry out extension test to it, it is existing right to check its performance index
The test of thin-wall pipes tensile property is that clamp body and tubular product sample are all placed in furnace chamber high-temperature area, completes drawing by high temperature examination
Test, this mode is to the more demanding of fixture.Existing fixture is mainly made of mandril, sleeve and fixture block etc., this fixture by
In mandril as an entirety during fixture block is pushed, fixture block easily makes tubular product sample inclined in the case of discontinuity
It is not easy to adjust from the center line of fixture, tubing is born certain shear stress, simultaneously because the pressure of mandril is unable to control,
The landing of tubular product sample is easy to cause, folder is split or draws phenomenon of slitting, makes test failure.
The content of the invention
The purpose of this utility model is to provide a kind of metal stretching detection device, to solve to propose in above-mentioned background technology
The problem of.
To achieve the above object, the utility model provides following technical solution：
A kind of metal stretching detection device, including body, heating unit, extensometer, upper fixture and lower fixture；The heating
Device is arranged on rack left side wall, and bocca is provided with heating unit, is installed on the sliding support of the body opposite side
There is extensometer, the upper fixture is fixed on the crossbeam of body by upper connecting rod, and lower fixture is fixed on machine by lower connecting rod
On the chassis of body, the bare terminal end of two fixtures is provided with cavity, and circular mounting hole, circular mounting hole and cavity are provided with cavity end
Communicate, be equipped with multiple wedge-shaped fixture blocks placed vertically in cavity, wedge-shaped fixture block can be by rectangle stopple that cavity wall is issued
Enter in cavity, cavity inner wall is provided with the sliding slot to match with wedge-shaped fixture block, and wedge-shaped fixture block is located in sliding slot, outside wedge-shaped fixture block and cavity
Screw is equipped between wall, chamber outer wall is equipped with bolt hole, and one end of screw passes through bolt hole, and wedge-shaped fixture block is three, corresponding
Screw is three.
As further program of the utility model：The upper fixture and lower fixture are pipe material clamp, and pipe material clamp includes
Inner support tube and the outer locking pipe being sheathed in inner support tube；The tube wall of the outer locking pipe passes through gradual increasing
One end of thickness, the relatively thin one end of the tube wall of the outer locking pipe and inner support tube connects；The outer locking pipe is equipped with multiple open
Mouth groove, the open slot is arranged on the thicker one end of the tube wall of outer locking pipe, and the open slot prolongs the axle center setting of outer locking pipe,
Locking nut is arranged with the outer locking pipe.
As the utility model further scheme：The cavity is conical cavity.
As the utility model further scheme：It is carved with scale line in the outer surface of the wedge shape fixture block.
As the utility model further scheme：The clamping face of the wedge shape fixture block is dentalation.
As the utility model further scheme：The material of the fixture is high temperature resistant material.
Compared with prior art, the beneficial effects of the utility model are：The utility model dismounting is convenient, it can be achieved that to difference
The clamping of pipe diameter, avoids the slip of sample and cracking during high temperature tension test, service life length, ensure that height
The homogeneous deformation of the lower tubing of temperature, test result accurately and reliably, shortens the test period, reduces testing cost, and works as tubing
After special fixture is used for multiple times, during the clamping face wear out failure of wedge-shaped fixture block, new wedge-shaped fixture block, versatility are only needed to change
By force.
Brief description of the drawings
Fig. 1 is the structure diagram of metal stretching detection device.
Fig. 2 is the structure diagram of special fixture in metal stretching detection device.
Fig. 3 be in metal stretching detection device A-A to profile.
Fig. 4 is the profile of a pair of wedge-shaped fixture block in metal stretching detection device.
Fig. 5 is another pipe material clamp structure diagram in metal stretching detection device.
In figure：1- bodies, 2- crossbeams, 3- chassis, fixture, 8- under 4- upper connecting rods, 5- upper fixtures, 6- lower connecting rods, 7-
Heating unit, 9- boccas, 10- extensometers, 11- slide limb, 12- stopper rods, 13- cavitys, 14- wedges fixture block, 15- rectangles
Hole, 16- screws, 17- clamping faces, 18- pipe material clamps, 19- open slots, 20- inner support tubes, 21- outer locking pipes, 22- locking screws
It is female.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained, shall fall within the protection scope of the present invention.
Please refer to Fig.1~5, a kind of metal stretching detection device, including body 1, heating unit 8, extensometer 10, upper fixture
5 and lower fixture 7；The heating unit 8 is arranged on 1 left side wall of rack, and bocca 9, the flame are provided with heating unit 8
The opposite test tubing of mouth 9；Extensometer 10 is installed, the upper fixture 5 is by upper on the sliding support 11 of 1 opposite side of body
Connecting rod 4 is fixed on the crossbeam 2 of body 1, and lower fixture 7 is fixed on the chassis 3 of body 1 by lower connecting rod 6, the upper folder
Tool 5 and lower fixture 7 are oppositely arranged, and two fixtures are used cooperatively；The bare terminal end of two fixtures is provided with cavity 13, is opened in 13 end of cavity
There is circular mounting hole, circular mounting hole is communicated with cavity 13, and multiple wedge-shaped fixture blocks 14 placed vertically are equipped with cavity 13, wedge shape
The rectangular opening 15 that fixture block 14 can be issued by 13 side wall of cavity is filled in cavity 13, and 13 inner wall of cavity is provided with and wedge-shaped fixture block 14
The sliding slot of matching, wedge-shaped fixture block 14 are located in sliding slot, are equipped with screw 16 between 13 outer wall of wedge-shaped fixture block 14 and cavity, outside cavity 13
Wall is equipped with bolt hole, and one end of screw 16 passes through bolt hole, is acted on by the feeding of screw 16 and bolt hole so that under screw 16
End and the upper surface pretension reinforcing of wedge-shaped fixture block 14, force wedge-shaped fixture block 14 to be moved down along sliding slot, so as to improve wedge-shaped fixture block 14
Clamping face 17 and the normal pressure and clamping force of tubular product sample tensile surface, realize the locking of tubular product sample.Wedge-shaped fixture block 14 is three
A, corresponding screw 16 is three, when being detected to tubular product sample, is inserted into using this fixture, and at the both ends of tubing
Stopper rod 12, stopper rod 12 and tubular product sample clearance fit, size are 1-5, and the bare terminal end of fixture is coated with high-temperature lubricant, is easy to
Follow-up dismounting and assemble again.
Further, upper fixture 5 described in the utility model and lower fixture 7 can be pipe material clamp 18, and pipe material clamp 18 includes
Inner support tube 20 and the outer locking pipe 21 being sheathed in inner support tube 20；The tube wall of the outer locking pipe 21 passes through
Progressive additive, one end that the tube wall of the outer locking pipe 21 is relatively thin are connected with one end of inner support tube 20；The outer locking pipe 21
It is equipped with multiple open slots 19, the open slot 19 is arranged on thicker one end of tube wall of outer locking pipe 21, and the open slot 19
The axle center for prolonging outer locking pipe 21 is set, and locking nut 22 is arranged with the outer locking pipe 21.
Further, cavity 13 described in the utility model is conical cavity.
Further, scale line is carved with the outer surface of wedge-shaped fixture block 14 described in the utility model, is weighed by scale line
Fixture clamps the size of sample dynamics, avoids because chucking power is much or too small, crosses the rupture of ambassador's sample end face, is drawn during experiment
Slit tubing, and too small chucking power is inadequate, and tubing comes off from fixture in drawing process, causes test crash.
Further, the clamping face 17 of wedge-shaped fixture block 14 described in the utility model is dentalation, reduces wedge grip
The contact area of block and specimen surface, improves the normal pressure of clamping, solves the problems, such as that clamp is hypodynamic.
Further, the material of fixture described in the utility model is high temperature resistant material, improves the service life of fixture.
The operation principle of the utility model is：The upper fixture 5 and lower fixture 7 are oppositely arranged, and two fixtures are used cooperatively；Two
The bare terminal end of fixture is provided with cavity 13, is equipped with multiple wedge-shaped fixture blocks 14 placed vertically in cavity 13, and wedge-shaped fixture block 14 can be with
The rectangular opening 15 issued by 13 side wall of cavity is filled in cavity 13, and 13 inner wall of cavity is provided with the cunning to match with wedge-shaped fixture block 14
Groove, wedge-shaped fixture block 14 are located in sliding slot, and screw 16 is equipped between 13 outer wall of wedge-shaped fixture block 14 and cavity, and 13 outer wall of cavity is equipped with spiral shell
Keyhole, one end of screw 16 pass through bolt hole, are acted on by the feeding of screw 16 and bolt hole so that 16 lower end of screw and wedge shape
The upper surface pretension reinforcing of fixture block 14, forces wedge-shaped fixture block 14 to be moved down along sliding slot, so as to improve the clamping face 17 of wedge-shaped fixture block 14
With the normal pressure and clamping force of tubular product sample tensile surface, the locking of tubular product sample is realized；When being detected to tubular product sample,
Using this fixture, and stopper rod 12, stopper rod 12 and tubular product sample clearance fit are inserted at the both ends of tubing, size is 1-5, folder
The bare terminal end of tool is coated with high-temperature lubricant, assembles easy to follow-up dismounting and again.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of the spirit or essential attributes without departing substantially from the utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new
The scope of type is indicated by the appended claims rather than the foregoing description, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are embraced therein.Any reference numeral in claim should not be considered as limitation
Involved claim.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical solution, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (6)
1. a kind of metal stretching detection device, including body, heating unit, extensometer, upper fixture and lower fixture, its feature exist
In：The heating unit is arranged on rack left side wall, and bocca, the slip of the body opposite side are provided with heating unit
Extensometer is installed, the upper fixture is fixed on the crossbeam of body by upper connecting rod, and lower fixture passes through lower connection on stent
Bar is fixed on the chassis of body, and the bare terminal end of two fixtures is provided with cavity, and circular mounting hole, circle peace are provided with cavity end
Dress hole is communicated with cavity, is equipped with multiple wedge-shaped fixture blocks placed vertically in cavity, wedge-shaped fixture block can be issued by cavity wall
Rectangular opening fill in cavity, cavity inner wall is provided with the sliding slot to match with wedge-shaped fixture block, and wedge-shaped fixture block is located in sliding slot, wedge grip
Screw is equipped between block and chamber outer wall, chamber outer wall is equipped with bolt hole, and one end of screw passes through bolt hole, and wedge-shaped fixture block is three
A, corresponding screw is three.
2. metal stretching detection device according to claim 1, it is characterised in that：The upper fixture and lower fixture are tubing
Fixture, pipe material clamp include inner support tube and the outer locking pipe being sheathed in inner support tube；The tube wall of the outer locking pipe is from one
Hold other end progressive additive, one end of the relatively thin one end of the tube wall of the outer locking pipe and inner support tube connects；The external lock
Tight pipe is equipped with multiple open slots, and the open slot is arranged on the thicker one end of the tube wall of outer locking pipe, and the open slot prolongs outside
The axle center of locking tube is set, and locking nut is arranged with the outer locking pipe.
3. metal stretching detection device according to claim 1, it is characterised in that：The cavity is conical cavity.
4. metal stretching detection device according to claim 1, it is characterised in that：It is carved with the outer surface of the wedge shape fixture block
Scale line.
5. metal stretching detection device according to claim 1, it is characterised in that：The clamping face of the wedge shape fixture block is
Dentalation.
6. metal stretching detection device according to claim 1 or 2, it is characterised in that：The material of the fixture is resistance to height
Warm material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721203506.8U CN207231893U (en) | 2017-09-20 | 2017-09-20 | A kind of metal stretching detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721203506.8U CN207231893U (en) | 2017-09-20 | 2017-09-20 | A kind of metal stretching detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207231893U true CN207231893U (en) | 2018-04-13 |
Family
ID=61862948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721203506.8U Expired - Fee Related CN207231893U (en) | 2017-09-20 | 2017-09-20 | A kind of metal stretching detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207231893U (en) |
-
2017
- 2017-09-20 CN CN201721203506.8U patent/CN207231893U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180413 Termination date: 20180920 |