CN208313664U - A kind of fixture for the protection of fatigue testing specimen fracture - Google Patents
A kind of fixture for the protection of fatigue testing specimen fracture Download PDFInfo
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- CN208313664U CN208313664U CN201820730555.5U CN201820730555U CN208313664U CN 208313664 U CN208313664 U CN 208313664U CN 201820730555 U CN201820730555 U CN 201820730555U CN 208313664 U CN208313664 U CN 208313664U
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Abstract
A kind of fixture for the protection of fatigue testing specimen fracture, belongs to the technical field of processing equipment of plate-shaped metal material fracture sample.Fixture includes casing, baffle, screw and marine glue；There is baffle above casing, away from threaded hole is provided at 8~15mm of casing lower edge, has screw in threaded hole, there is marine glue between casing and baffle.The advantage is that efficiently avoiding in sample process, fracture surface pattern is destroyed by Hquids such as emulsion, while with not influencing sample cutting processing.
Description
Technical field
The utility model belongs to the technical field of processing equipment of plate-shaped metal material fracture sample, in particular to one kind is used for
The fixture of fatigue testing specimen fracture protection.
Background technique
The fracture apperance observation test of Metal Material Fatigue test sample is usually analysis sample fracture type, damage failure
The common method of mode.Currently, the conventional means of appearance analysis is to be carried out using scanning electron microscope to fracture apperance
Observation.Due to being limited by scanning electron microscope sample chamber size, large-sized mechanical test sample is difficult to realize directly
Fracture observation.Usual large scale sample of having no progeny needs to cut the surplus of certain size, such as clamping end is cut, to reach scanning
Electron microscope sample cabin allows size.Currently, common cutting mode has wire cutting, grinding wheel cutting etc..Wherein, it cuts online
Cut the liquid such as the emulsion for needing to be added cooling in cutting process with grinding wheel.Since the liquid of addition is easy to be attached by pollutant
In sample fracture surface, destroy fresh fracture apperance, to observation result cause a degree of distortion.It is therefore necessary to
The fixture for designing a kind of utility model protects fracture apperance, and prevent liquid soaks pollution.
Summary of the invention
The purpose of this utility model is to provide a kind of fixtures for the protection of fatigue testing specimen fracture, solve and add in sample
During work, fracture surface pattern by the liquid such as emulsion destroy the problem of.
A kind of fixture for the protection of fatigue testing specimen fracture, including casing 1, baffle 2, screw 3 and marine glue 4；Casing 1
There is baffle 2 in top, away from threaded hole is provided at 1 8~15mm of lower edge of casing, has screw 3 in threaded hole, between casing 1 and baffle 2
There is marine glue 4, for being bonded and sealing.
The shape and size of 1 Internal periphery of described sleeve pipe and the shape of sample outer profile are suitable with size；1 wall thickness of casing is 4-
6mm。
The spiro rod length of the screw 3 is 1mm at least more than the wall thickness of casing 1.
The shape of the cross section outer profile of the shape and size and casing 1 of the baffle 2 is suitable with size, and thickness is at least
For 1mm.
Described sleeve pipe 1 and the material of baffle 2 are stainless steel.
The marine glue 4 is easy to machinery and dispels.
The operation of above-mentioned fixture is as follows: sample section 5 being packed into from the threaded hole side of casing 1, it is adjustable to be packed into depth；It is to be installed
Enter depth it is suitable after, tighten screw 3, hold out against sample with screw 3；After the surrounding of baffle 2 sprays marine glue 4, baffle 2 is bonded
To 3 side of separate screw of casing 1；Marine glue 4 is sprayed into the gap between sample and casing 1, seals fracture surface；To sample
After wire cuttings or grinding wheel cutting, fixture and specimen surface are cleaned, abolishes marine glue 4 using machine tools such as blades,
Screw 3 is loosened, sample is removed.Thus obtain the fracture surface for not being processed liquid pollution.
The utility model has the advantage of efficiently avoid in sample process, fracture surface pattern is by milkiness
The Hquids such as liquid destroy, while with not influencing sample cutting processing.
Detailed description of the invention
The main view that FIG. 1 is a schematic structural view of the utility model.Wherein, casing 1, baffle 2, screw 3, marine glue 4.
Fig. 2 is the top view of the utility model structure diagram.Wherein, marine glue 4.
Specific embodiment
A kind of specific embodiment of fixture for the protection of fatigue testing specimen fracture includes casing 1, baffle 2, screw 3 and waterproof
Glue 4；There is baffle 2 in the top of casing 1, away from threaded hole is provided at 1 lower edge 10mm of casing, there is screw 3,1 He of casing in threaded hole
There is marine glue 4 between baffle 2, for being bonded and sealing.The shape and size of 1 Internal periphery of casing and the shape of sample outer profile with
Size is suitable；1 wall thickness of casing about 5mm.The spiro rod length of screw 3 is 7mm.Outside the shape and size of baffle 2 and casing cross section
The shape of profile is suitable with size, with a thickness of 3mm.The material of casing 1 and baffle 2 is stainless steel.Marine glue 4 is easy to machinery and dispels
It removes.
The operation of above-mentioned fixture is as follows: sample section 5 being packed into from the threaded hole side of casing 1, is packed into depth 18mm；Then
Screw 3 is tightened, sample is held out against；After the surrounding of baffle 2 sprays marine glue 4, baffle 2 is adhered to the separate screw 3 of casing 1
Side；Marine glue 4 is sprayed into the gap between sample and casing 1, seals fracture surface；Pass through wire cutting or grinding wheel to sample
After piece cutting, fixture and specimen surface are cleaned, marine glue 4 is abolished using machine tools such as blades, loosens screw 3, remove sample.
Thus obtain the fracture surface for not being processed liquid pollution.
Claims (5)
1. it is a kind of for fatigue testing specimen fracture protection fixture, which is characterized in that including casing (1), baffle (2), screw (3) and
Marine glue (4)；There are baffle (2) above casing (1), away from being provided with threaded hole at casing (1) 8~15mm of lower edge, in threaded hole
Have screw (3), there are marine glue (4) between casing (1) and baffle (2).
2. fixture according to claim 1, which is characterized in that the shape and size and sample of described sleeve pipe (1) Internal periphery
The shape of outer profile is suitable with size；Casing (1) wall thickness is 4-6mm.
3. fixture according to claim 1, which is characterized in that wall thickness of the spiro rod length of the screw (3) than casing (1)
At least more 1mm.
4. fixture according to claim 1, which is characterized in that the shape of the baffle (2) and the cross of size and casing (1)
The shape of section outer profile is suitable with size, and thickness is at least 1mm.
5. fixture according to claim 1, which is characterized in that described sleeve pipe (1) and the material of baffle (2) are stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820730555.5U CN208313664U (en) | 2018-05-11 | 2018-05-11 | A kind of fixture for the protection of fatigue testing specimen fracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820730555.5U CN208313664U (en) | 2018-05-11 | 2018-05-11 | A kind of fixture for the protection of fatigue testing specimen fracture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208313664U true CN208313664U (en) | 2019-01-01 |
Family
ID=64712009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820730555.5U Active CN208313664U (en) | 2018-05-11 | 2018-05-11 | A kind of fixture for the protection of fatigue testing specimen fracture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208313664U (en) |
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2018
- 2018-05-11 CN CN201820730555.5U patent/CN208313664U/en active Active
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