CN207964467U - Auxiliary clamp suitable for short and small sample torsion test - Google Patents
Auxiliary clamp suitable for short and small sample torsion test Download PDFInfo
- Publication number
- CN207964467U CN207964467U CN201820402496.9U CN201820402496U CN207964467U CN 207964467 U CN207964467 U CN 207964467U CN 201820402496 U CN201820402496 U CN 201820402496U CN 207964467 U CN207964467 U CN 207964467U
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- CN
- China
- Prior art keywords
- hole
- shank
- clamping opening
- taper
- torsion test
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- Expired - Fee Related
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model is related to a kind of auxiliary clamps suitable for short and small sample torsion test,The single branch fixture used is matched including two,Single branch fixture includes shank,Taper sheath,Shank front end opens up clamping opening,Clamping opening inner surface is machined with striped,To ensure enough frictional force,Make sample that circumference and axial skidding not occur in twist process,Shank front end is provided with external screw thread on rear side of clamping opening,Through-hole is provided in taper sheath,Through-hole front is pre-small post-large taper hole,Through-hole rear portion is cylindrical hole,Cylinder bore diameter is identical as taper hole maximum gauge,Internal thread is arranged in cylinder internal surface of hole,Taper sheath be set in shank front end and be screwed,For fixing sample,After sample is placed in shank front end clamping opening,Screw taper sheath,The taper surface of its taper sheath inner wall makes clamping opening radially tighten,Achieve the purpose that fixed sample,The utility model solves the problems, such as that difficulty is clamped in small size sample torsion test in twist machine,It is simple in structure,Simple operation can repeatedly use.
Description
Technical field
The utility model is related to a kind of auxiliary clamps suitable for short and small sample torsion test, belong to test button torsion examination
Test field.
Background technology
With the continuous development of colleges and universities' subject and perfect, the research of each zone material is more and more important, different application occasion,
Different shape, size material gradually cause the interest of researcher, also gradually come into classroom practice teaching.Torsion test
The intensity and plasticity that material can be measured, are one of fundamental test methods of the mechanical property of materials, are a weights of the mechanics of materials
The experiment wanted has important practice significance in Practical Project machinery.Common torsion testing machine can only reliable retention there is spy
The standard sample being sized, and it is smaller to have the size of quite a few material or sample in practical application, such as common is short
Bar parts can not process torsional specimen size because its length is smaller according to national standard, thus can not be on torsion testing machine
Direct clamp assay.And the application of the parts such as the axis of short and small size, spring is often referred in practical engineering application.These
Parts can not just carry out the experiment consistent with actual working conditions, to estimating there are certain vacancy for its plasticity and toughness, cause
Later stage, there are security risks using process.
Invention content
The utility model proposes a kind of auxiliary clamps suitable for short and small sample torsion test.
Scheme is a kind of auxiliary suitable for short and small sample torsion test used by the utility model solves technical problem
Fixture, including two matched single branch fixture for using, single branch fixture includes shank, taper sheath, and shank front end opens up clamping opening, clamping opening
Inner surface is machined with striped, and shank front end is provided with external screw thread on rear side of clamping opening, through-hole is provided in taper sheath, through-hole front is
Pre-small post-large taper hole, through-hole rear portion are cylindrical hole, and cylinder bore diameter is identical as taper hole maximum gauge, the setting of cylinder internal surface of hole
Internal thread, taper sheath be set in shank front end and be screwed.
Further, the rear end size of the front end size ratio shank of shank is small, size and the torsion test mark of shank rear end
Quasi- sample size is consistent.
Further, the front end of shank is machined with rounded corner.
Further, two strip gabs of axially symmetric setting of clamping opening outer periphery clamping opening.
Further, clamping opening diameter is not less than taper hole minimum diameter no more than taper hole maximum gauge.
Further, taper sheath rear portion periphery setting striped portion.
Compared with prior art, the utility model has the advantages that：It solves in small size sample torsion test
Difficult problem is clamped in twist machine, simple in structure, reasonable design, simple operation is cheap, easy to make, applicability
Extensively, it is hardly damaged, can repeatedly use.
Description of the drawings
The utility model patent is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is the structural schematic diagram of single branch fixture.
Fig. 2 is the structural schematic diagram that two single branch fixtures adjust fixed sample.
In figure：
1- taper sheaths；2- taper holes；3- cylindrical holes；4- clamping opening；5- stripeds；6- strip gabs；7- external screw threads；8- shanks；9-
Sample.
Specific implementation mode
The utility model is further illustrated with reference to the accompanying drawings and detailed description.
As shown in Figs. 1-2, a kind of auxiliary clamp suitable for short and small sample torsion test, including two matched the list that uses
Branch fixture, single branch fixture include shank, taper sheath, and shank front end opens up clamping opening, and clamping opening inner surface is machined with striped, to ensure foot
Enough frictional force, makes sample that circumference and axial skidding not occur in twist process, and shank front end is provided with outer in clamping opening rear side
Screw thread is provided with through-hole in taper sheath, and through-hole front is pre-small post-large taper hole, and through-hole rear portion is cylindrical hole, cylinder bore diameter
It is identical as taper hole maximum gauge, cylinder internal surface of hole be arranged internal thread, taper sheath be set in shank front end and be screwed,
For fixing sample, after sample is placed in shank front end clamping opening, taper sheath is screwed, the taper surface of taper sheath inner wall makes clamping opening diameter
To tightening, achieve the purpose that fixed sample.
In the present embodiment, the rear end size of the front end size ratio shank of shank is small, and size and the torsion of shank rear end try
The quasi- sample size of standard inspection is consistent, convenient to be clamped and ensure in axis pair in twist machine.
In the present embodiment, taper sheath rear portion periphery setting striped portion, is convenient for turn taper sheath.
In the present embodiment, the front end of shank is machined with rounded corner, and clamping opening diameter is not less than no more than taper hole maximum gauge
Taper hole minimum diameter, two strip gabs of axially symmetric setting of clamping opening outer periphery clamping opening so that taper sheath passes through screw-thread fit
Shi Yuqi inner wall taper surfaces contact, and generate radial contraction under the pressure effect of taper surface, compress sample, reach fixed sample
Purpose.
In the present embodiment, clamping opening is a sleeve part, and sleeve part rear end connects shank, the axial direction of sleeve part outer periphery clamping opening
Two strip gabs are symmetrical arranged, sleeve part is divided into two curved portions, is formed between two curved portions by two strip gabs
The section of sample is accommodated, two strip gabs make sleeve be generated radial contraction by the pressure energy of taper sheath taper surface.
Before experiment, ensures that the shank of each single branch fixture coordinates with taper sheath, ensure that the clamping opening of shank front end is reserved certain
First single branch fixture, is clamped in the fixation holder of torsion testing machine by gap, and second single branch fixture is clamped in torsion test
Machine activity holder screws first single branch folder by one end of sample in the clamping opening of the shank front end of first single branch fixture
Taper sheath on tool completes end clamping, and slowly mobile torsion testing machine activity holder, makes the sample other end enter second list
In the clamping opening of the shank front end of branch fixture, the taper sheath on second single branch fixture is screwed, completes other end clamping, then
Carry out torsion test.
Above-listed preferred embodiment has been further described the purpose of this utility model, technical solution and advantage,
It should be understood that the above is only the preferred embodiment of the utility model only, it is not intended to limit the utility model, it is all
Within the spirit and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this practicality
Within novel protection domain.
Claims (6)
1. a kind of auxiliary clamp suitable for short and small sample torsion test, it is characterised in that：The single branch used is matched including two
Fixture, single branch fixture include shank, taper sheath, and shank front end opens up clamping opening, and clamping opening inner surface is machined with striped, shank front end in
It is provided with external screw thread on rear side of clamping opening, through-hole is provided in taper sheath, through-hole front is pre-small post-large taper hole, and through-hole rear portion is circle
Post holes, cylinder bore diameter is identical as taper hole maximum gauge, and internal thread is arranged in cylinder internal surface of hole, and taper sheath is set in shank front end
And be screwed.
2. the auxiliary clamp according to claim 1 suitable for short and small sample torsion test, it is characterised in that：Before shank
Hold the rear end size of size ratio shank small, the size of shank rear end is consistent with torsion test standard sample size.
3. the auxiliary clamp according to claim 1 suitable for short and small sample torsion test, it is characterised in that：Before shank
End is machined with rounded corner.
4. the auxiliary clamp according to claim 1 suitable for short and small sample torsion test, it is characterised in that：Clamping opening periphery
Along two strip gabs of axially symmetric setting of clamping opening.
5. the auxiliary clamp according to claim 4 suitable for short and small sample torsion test, it is characterised in that：Clamping opening diameter
It is not less than taper hole minimum diameter no more than taper hole maximum gauge.
6. the auxiliary clamp according to claim 1 suitable for short and small sample torsion test, it is characterised in that：After taper sheath
Striped portion is arranged in portion periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820402496.9U CN207964467U (en) | 2018-03-23 | 2018-03-23 | Auxiliary clamp suitable for short and small sample torsion test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820402496.9U CN207964467U (en) | 2018-03-23 | 2018-03-23 | Auxiliary clamp suitable for short and small sample torsion test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207964467U true CN207964467U (en) | 2018-10-12 |
Family
ID=63726038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820402496.9U Expired - Fee Related CN207964467U (en) | 2018-03-23 | 2018-03-23 | Auxiliary clamp suitable for short and small sample torsion test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207964467U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114284063A (en) * | 2021-12-14 | 2022-04-05 | 通友智能装备(江苏)有限公司 | Ultra-miniature high-power inductance winding device |
-
2018
- 2018-03-23 CN CN201820402496.9U patent/CN207964467U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114284063A (en) * | 2021-12-14 | 2022-04-05 | 通友智能装备(江苏)有限公司 | Ultra-miniature high-power inductance winding device |
| CN114284063B (en) * | 2021-12-14 | 2024-04-12 | 通友智能装备(江苏)有限公司 | Ultra-miniature high-power inductance winding device |
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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: 20181012 Termination date: 20210323 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |