CN209656437U - A kind of test fixture - Google Patents
A kind of test fixture Download PDFInfo
- Publication number
- CN209656437U CN209656437U CN201920483332.8U CN201920483332U CN209656437U CN 209656437 U CN209656437 U CN 209656437U CN 201920483332 U CN201920483332 U CN 201920483332U CN 209656437 U CN209656437 U CN 209656437U
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- CN
- China
- Prior art keywords
- hole
- axis
- convex
- cuboid
- doorframe
- 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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- 238000012360 testing method Methods 0.000 title claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000009661 fatigue test Methods 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000005452 bending Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 240000002853 Nelumbo nucifera Species 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 2
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 2
- 238000009666 routine test Methods 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- 241001484259 Lacuna Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000017260 vegetative to reproductive phase transition of meristem Effects 0.000 description 1
Abstract
The utility model provides a kind of test fixture, belongs to fatigue test technology field.Including chuck body, the lower part of the upper connector is the cuboid of separate structure, and the upper component front of the cuboid is " door " character form structure, and side is inverted L shape structure；The lower member of the cuboid is to be horizontally arranged three-dimensional "convex" shaped structure, and the head of the "convex" shaped structure is located in the doorframe and clearance fit, shoulder are aligned with the front of the doorframe, is equipped with adjusting gasket between the two；It is horizontal bellmouth that the center of the "convex" shaped structural base plane, which is equipped with axis, and two sides are equipped with the threaded hole parallel with horizontal taper axially bored line；The center of the "convex" shaped constitution water plane is equipped with the vertical specimen holder hole of axis；The center of adjusting gasket is equipped with shim through bore, opens tail cone pin and the bellmouth cooperates, and stay bolt passes through the doorframe through-hole of the threaded hole, shim through bore and cuboid top, and is consolidated by nut.
Description
Technical field
The utility model relates to a kind of fatigue test technology fields.
Background technique
The common test specimen of one of Metal Material Fatigue test is pole shape, and existing testing machine mainly collects pole test specimen
In Fatigue Test Research under uniaxial tension and compression, pure torsion, the compound these types of loading of rotoflector, tension-torsion, and consider additional
Fatigue Test Research under Moment Influence is less.China's number of applying for a patent 201620256301.5 proposes a kind of " pole sample
Stretch shoulder fixture ", this application patent is used to solve the disadvantage that clamp weight to be big, can not install extensometer, including identical
Two sub- clamp structures up and down, each sub-folder tool includes connector, outer collet, interior collet, spill spin block, bolt.Pole examination
Sample stretches shoulder fixture, is simply possible to use in the tension test of pole sample, and there are gaps with collet for pole sample end, are carrying out
During tension test, pole sample will receive the effect of additional bending moment, influence test result.China's number of applying for a patent
" 201620237703.0 " propose metal material pole test specimen tensile test at room temperature fixture, and this application patent is for solving wedge shape
The problem of specimen holder debug time is long during the test for hydraulically operated fixture, and it is not firm enough to clamp, clamp wear, including shell,
Connector, holding tank, snap ring, test specimen fixing groove, test specimen top fixing seat.Metal material pole test specimen tensile test at room temperature folder
Tool is only applicable to the tension test of pole sample, and sample is preferable to neutrality, but there is opposite turn between pole sample and snap ring
It is dynamic, it will affect stretch test result.
Engineering structure is typically under complicated multi-axis stress state during being actually on active service, and be mostly because bear with
Airborne lotus acts on and fails.Therefore, when carrying out Analysis on Fatigue Reliability or safety evaluatio to test specimen under multiaxial loading, if
Ignore the effect of additional bending moment, is then likely to be obtained relatively dangerous or overly conservative conclusion.Based on this, in order to rationally assess multiaxis
The fatigue behaviour of fatigue state flowering structure part, it is necessary to design a kind of pole test specimen and turn round folder under loading in stretch bending or stretch bending
Lamps structure.
Utility model content
The purpose of the utility model is to provide a kind of test fixture, it can efficiently solve routine test machine realize stretch bending or
Stretch bending turns round the technical issues of load fatigue test.
The purpose of this utility model is achieved through the following technical solutions:
A kind of test fixture, including the chuck body being made of the upper connector of upper and lower symmetrical configuration and lower connector, institute
The top for stating upper connector is cylindrical body, and lower part is clamping device, and the lower part of the upper connector is the cuboid of separate structure,
The upper component front of the cuboid is " door " character form structure, and side is inverted L shape structure, " door " character form structure
The center of two sides doorframe column is equipped with axis horizontal and threaded doorframe through-hole；The lower member of the cuboid is level
Place three-dimensional "convex" shaped structure, the head of the "convex" shaped structure is located in the doorframe and clearance fit, shoulder and
The front alignment of the doorframe, is equipped with adjusting gasket between the two；The center of the "convex" shaped structural base plane is equipped with axis
Line is horizontal bellmouth, and two sides are equipped with the threaded hole parallel with horizontal taper axially bored line；The "convex" shaped constitution water plane
Center be equipped with the vertical specimen holder hole of axis；The center of adjusting gasket is equipped with shim through bore, opens tail cone pin and the taper
Hole cooperation, stay bolt passes through the doorframe through-hole of the threaded hole, shim through bore and cuboid top, and is consolidated by nut；
The both ends of pole test specimen are equipped with the through-hole of axis horizontal, the diameter of the through-hole and the major diameter fit for opening tail cone pin.
The axis in the specimen holder hole of the "convex" shaped constitution water planar central and the axis cross of the bellmouth are handed over
Fork.
The diameter at the both ends of the pole test specimen and the specimen holder interporal lacuna at lower member center cooperate.
The cuboid structure of the lower connector is identical as the structure of upper connector, contrary.
The axis of the both ends horizontal through-hole of the pole test specimen is overlapped with the axis of the bellmouth.
The outer diameter of the pole test specimen upper/lower terminal and the specimen holder hole cooperate, and tail cone pin is fixed to be connected by opening
It connects；Institute
Adjusting gasket is stated for adjusting the eccentricity of pole test specimen.
Load is turned round in stretch bending or stretch bending the utility model has the beneficial effects that solving routine test machine and cannot carry out pole test specimen
Associated fatigue test under the effect of lotus form.It can be curved by adding accordingly by using different-thickness adjusting gasket pole sample
Square.
Detailed description of the invention
Fig. 1 is the axis side explosive view of the utility model；
Fig. 2 is the main view of the utility model；
Fig. 3 is the side view of the utility model；
Fig. 4 is the rectangular lower structure body full sectional view of the utility model；
Specific embodiment
The specific embodiment of the utility model patent is described further with reference to the accompanying drawing.
In embodiment shown in Fig. 1-3,
The test fixture under loading is turned round in stretch bending or stretch bending for pole test specimen,
A kind of test fixture, including the chuck body being made of the upper connector 2 of upper and lower symmetrical configuration and lower connector 8,
The top of the upper connector 2 is cylindrical body, and lower part is clamping device, and the lower part of the upper connector 2 is the square of separate structure
Body, the upper component front of the cuboid are " door " character form structure, and side is inverted L shape structure, " door " word
The center of shape structure two sides doorframe column is equipped with axis horizontal and threaded doorframe through-hole 9, the lower part structure of the cuboid
Part 4 is to be horizontally arranged three-dimensional "convex" shaped structure, and the head of the "convex" shaped structure is located in the doorframe and gap is matched
It closes, shoulder is aligned with the front of the doorframe, is equipped with adjusting gasket 3 between the two；The "convex" shaped structural base plane
It is horizontal bellmouth 11 that center, which is equipped with axis, and two sides are equipped with the threaded hole 12 parallel with horizontal taper axially bored line；It is described " convex "
The center of character form structure horizontal plane is equipped with the vertical specimen holder hole 13 of axis；The center of adjusting gasket 3 is equipped with shim through bore 10,
It opens tail cone pin 5 and the bellmouth 11 cooperates, stay bolt 6 passes through the threaded hole 12, shim through bore 10 and cuboid top
Doorframe through-hole 9, and consolidated by nut 1；The both ends of pole test specimen 7 be equipped with axis horizontal through-hole 14, the through-hole 14 it is straight
Diameter and the major diameter fit for opening tail cone pin 5.
The axis ten of the axis in the specimen holder hole 13 of the "convex" shaped constitution water planar central and the bellmouth 11
Word intersects.
The diameter at the both ends of the pole test specimen 7 and 13 clearance fit of specimen holder hole at 4 center of lower member.
The cuboid structure of the lower connector 8 is identical as the structure of upper connector 2, contrary.
The axis of the both ends horizontal through-hole 14 of the pole test specimen 7 is overlapped with the axis of the bellmouth 11.The adjusting
Gasket 3 is used to adjust the eccentricity of pole test specimen 7.
Claims (5)
1. a kind of test fixture, including the fixture sheet being made of the upper connector (2) of upper and lower symmetrical configuration and lower connector (8)
The top of body, the upper connector (2) is cylindrical body, and lower part is clamping device, it is characterised in that: the upper connector (2)
Lower part is the cuboid of separate structure, and the upper component front of the cuboid is " door " character form structure, and side is inverted " L "
Shape structure, the center of " door " character form structure two sides doorframe column are equipped with axis horizontal and threaded doorframe through-hole (9),
The lower member (4) of the cuboid is to be horizontally arranged three-dimensional "convex" shaped structure, the head position of the "convex" shaped structure
In in the doorframe and clearance fit, shoulder are aligned with the front of the doorframe, it is equipped with adjusting gasket (3) between the two；It is described
It is horizontal bellmouth (11) that the center of "convex" shaped structural base plane, which is equipped with axis, and two sides are equipped with and horizontal taper axially bored line
Parallel threaded hole (12)；The center of the "convex" shaped constitution water plane is equipped with the vertical specimen holder hole (13) of axis；It adjusts
The center for saving gasket (3) is equipped with shim through bore (10), opens tail cone pin (5) and the bellmouth (11) and cooperates, stay bolt (6) passes through
Threaded hole (12), shim through bore (10) and the doorframe through-hole (9) on cuboid top, and consolidated by nut (1)；Pole
The both ends of test specimen (7) are equipped with the through-hole (14) of axis horizontal, and the diameter of the through-hole (14) is matched with the outer diameter for opening tail cone pin (5)
It closes.
2. a kind of test fixture according to claim 1, it is characterised in that: the "convex" shaped constitution water planar central
The axis in specimen holder hole (13) and the axis right-angled intersection of the bellmouth (11).
3. a kind of test fixture according to claim 1, it is characterised in that: the diameter at the both ends of the pole test specimen (7)
With specimen holder hole (13) clearance fit at lower member (4) center.
4. a kind of test fixture according to claim 1, it is characterised in that: the cuboid structure of the lower connector (8)
It is identical as the structure of upper connector (2), it is contrary.
5. a kind of test fixture according to claim 1, it is characterised in that: the both ends horizontal of the pole test specimen (7) is logical
The axis in hole (14) is overlapped with the axis of the bellmouth (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920483332.8U CN209656437U (en) | 2019-04-11 | 2019-04-11 | A kind of test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920483332.8U CN209656437U (en) | 2019-04-11 | 2019-04-11 | A kind of test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209656437U true CN209656437U (en) | 2019-11-19 |
Family
ID=68529138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920483332.8U Expired - Fee Related CN209656437U (en) | 2019-04-11 | 2019-04-11 | A kind of test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209656437U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109916715A (en) * | 2019-04-11 | 2019-06-21 | 西南交通大学 | A kind of test fixture |
| CN111693371A (en) * | 2020-07-06 | 2020-09-22 | 上海大学绍兴研究院 | Test fixture for testing tensile property of ceramic matrix composite |
-
2019
- 2019-04-11 CN CN201920483332.8U patent/CN209656437U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109916715A (en) * | 2019-04-11 | 2019-06-21 | 西南交通大学 | A kind of test fixture |
| CN111693371A (en) * | 2020-07-06 | 2020-09-22 | 上海大学绍兴研究院 | Test fixture for testing tensile property of ceramic matrix composite |
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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: 20191119 |