CN207650011U - Sheet metal high temperature tensile clamp - Google Patents
Sheet metal high temperature tensile clamp Download PDFInfo
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- CN207650011U CN207650011U CN201721649321.XU CN201721649321U CN207650011U CN 207650011 U CN207650011 U CN 207650011U CN 201721649321 U CN201721649321 U CN 201721649321U CN 207650011 U CN207650011 U CN 207650011U
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- briquetting
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- left semicircle
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Abstract
The utility model discloses a kind of sheet metal high temperature tensile clamps of metal material mechanics technical field of performance test, and when being tested with solving current thin plate high temperature tensile properties, sample easily leads to the problem of additional deformation in end and test result is caused to be not allowed.It is made of two clamp bodies of upper and lower mirror symmetry, each clamp body is connected through a screw thread with upper and lower pull rod respectively, the clamp body is mainly made of left semicircle briquetting, right semi-circle briquetting and step pin, left semicircle briquetting open there are one with sample end pin hole size be adapted threaded hole, right semi-circle briquetting opens a through-hole for being more than sample end pin hole, step pin sequentially passes through right semi-circle briquetting through-hole, sample end pin hole and left semicircle briquetting threaded hole, and sheet metal sample end is pressed between left semicircle briquetting and right semi-circle briquetting.The utility model can be tightly fixed by sample holder end, does not give sample end pins bore deformation to provide space, improves test accuracy.
Description
Technical field
The utility model is related to a kind of sheet metal high temperature tensile clamps of metal material mechanics technical field of performance test.
Background technology
For high intensity light sheet material due to the use of the hot properties of environment, high temperature tensile properties have become the emphasis of concern.
Drawing by high temperature refers to connecting tensile sample to be measured with tensile test equipment, is waited after being warming up to test temperature, under axial loading
Measure a kind of test method of material at high temperature performance.Standard GB/T/T 228.2-2015 at present《Metal material stretching test
2 parts：Hot test method》Middle regulation, tensile sample to be measured use hanging lock type connection type with tensile test equipment.But works as and wait for
When surveying thin plate sample very thin thickness, due to having stress concentration, sample that can generate additional deformation at this at pin hole in drawing process
Or directly tear, it causes test result accuracy to reduce or in vain, therefore, it is high which has not been suitable for high intensity thin plate
Warm tension test.
The test difficult point of thin plate high temperature tensile properties is：1) stress concentration at the pin hole of sample end makes to generate around hole
Additional deformation certainly will influence the reliability and accuracy of test result, torn at hole when deforming serious, cause result invalid；
If 2) test temperature is higher, the intensity of material is very low, can be torn directly from hole in drawing process, test result is invalid.3)
Sample is clamped by frictional force using traditional Wedge gripping and horizontal sliding fixture, under the conditions of high temperature (temperature is more than 250 DEG C) very
Difficult firm grip, experiment are difficult to smoothly complete.
Utility model content
The purpose of the utility model is to overcome prior art defects, provide a kind of sheet metal high temperature tensile clamp.
What the technical solution of the utility model was realized in：Sheet metal high temperature tensile clamp, by upper and lower mirror symmetry
Two clamp bodies composition, each clamp body is connected through a screw thread with upper and lower pull rod respectively, and the clamp body is mainly by left semicircle
Briquetting, right semi-circle briquetting and step pin composition, left semicircle briquetting open there are one with sample end pin hole size be adapted
Threaded hole, right semi-circle briquetting open a through-hole for being more than sample end pin hole, and it is logical that step pin sequentially passes through right semi-circle briquetting
Sheet metal sample end is pressed on left semicircle briquetting and right semi-circle by hole, sample end pin hole and left semicircle briquetting threaded hole
Between briquetting.
Preferably, correspondence is provided with longitudinal fluting on left semicircle briquetting and right semi-circle briquetting, is convenient for sheet metal sample end
Portion is inserted into and centering.
Preferably, the depth of groove is 1mm.
The utility model can be tightly fixed by sample holder end, is not deformed to pin hole and provides space, avoids sample end pins
Additional deformation is generated at hole, is solved in thin plate high temperature tensile properties test of the thickness less than or equal to 1mm because sample pin hole deforms
And lead to test failure or the invalid technical barrier of result, improve success of the test rate and result accuracy.
Description of the drawings
Fig. 1 is the utility model structure diagram.
Fig. 2 is left semicircle briquette structure schematic diagram.
Fig. 3 is right semi-circle briquette structure schematic diagram.
Fig. 4 is pin feature schematic diagram.
Fig. 5 is thin plate sample schematic diagram.
In figure：1- upper fixture bodies；Clamp body under 2-；3- left semicircle briquettings；4- right semi-circle briquettings；5- threaded holes；6- through-holes；
7- step pins；8- samples end pin hole；9- samples.
Specific implementation mode
It is further described below in conjunction with the accompanying drawings：
As Figure 1-Figure 5, sheet metal high temperature tensile clamp, the upper fixture body 1 by upper and lower mirror symmetry and lower fixture
Body 2 forms, and each clamp body is connected through a screw thread with upper and lower pull rod respectively, and the upper fixture body 1 and lower clamp body 2 are mainly by a left side
Semicircle briquetting 3, right semi-circle briquetting 4 and step pin 7 form, left semicircle briquetting 3 open there are one with 8 size of sample end pin hole
Adaptable threaded hole 5, right semi-circle briquetting 4 open a through-hole 6 for being more than sample end pin hole 8, and step pin 7 sequentially passes through
3 threaded hole 5 of 4 through-hole 6 of right semi-circle briquetting, sample end pin hole 8 and left semicircle briquetting, 9 end of sheet metal sample is pressed on
Between left semicircle briquetting 3 and right semi-circle briquetting 4, correspondence is provided with longitudinal fluting on left semicircle briquetting 3 and right semi-circle briquetting 4, just
It is inserted into 9 end of sheet metal sample and centering, the depth of groove is 1mm.
When work, 9 end of sample is clamped in centre, and passes through step pin 7 by left semicircle briquetting 3, right semi-circle briquetting 4
Connection, 7 wide face step of step pin tightly withstand on right semi-circle briquetting 4 and 9 end of sample on left semicircle briquetting 3, pin end
Portion's screw thread is inserted into 3 threaded hole 5 of left semicircle briquetting.Coupling mechanism force relaxes under high temperature in order to prevent, under the certain pulling force of pre-add, by platform
Stepwise pin 7 is tightened.This connection method can be tightly fixed by sample holder end, avoids stress at the pin hole of sample end, does not give
Pin hole deformation provides space.
The intensity for increasing bare terminal end in order to ensure sample 9 to neutralizing, is less than thickness the thin plate of 1mm, utilizes spot welding
Method, by the thin plate end spot welding of two pieces of same thickness, sample 9 is end-thickened to 1mm or more, and spot welding is uniform, avoids
Sample parallel portion bears additional twisting resistance in pinpoint welding procedure.9 end spot welding of sample opens sample end pin hole again after thickening to 1mm
8, the center line of sample end pin hole 8 should be overlapped with the axis of sample, then be clamped sample end with fixture, intermediate or single
Block sample carries out tension test.
Claims (3)
1. sheet metal high temperature tensile clamp, it is characterised in that：It is made of two clamp bodies of upper and lower mirror symmetry, each to press from both sides
It is specifically connected through a screw thread respectively with upper and lower pull rod, the clamp body is mainly by left semicircle briquetting, right semi-circle briquetting and step
Pin forms, and left semicircle briquetting is opened there are one the threaded hole being adapted with sample end pin hole size, and right semi-circle briquetting opens one
More than the through-hole of sample end pin hole, step pin sequentially passes through right semi-circle briquetting through-hole, sample end pin hole and left semicircle
Sheet metal sample end is pressed between left semicircle briquetting and right semi-circle briquetting by briquetting threaded hole.
2. sheet metal high temperature tensile clamp according to claim 1, it is characterised in that：In left semicircle briquetting and right semi-circle
Correspondence is provided with longitudinal fluting on briquetting, convenient for the insertion of sheet metal sample end and centering.
3. sheet metal high temperature tensile clamp according to claim 2, it is characterised in that：The depth of groove is 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721649321.XU CN207650011U (en) | 2017-12-01 | 2017-12-01 | Sheet metal high temperature tensile clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721649321.XU CN207650011U (en) | 2017-12-01 | 2017-12-01 | Sheet metal high temperature tensile clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207650011U true CN207650011U (en) | 2018-07-24 |
Family
ID=62882761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721649321.XU Active CN207650011U (en) | 2017-12-01 | 2017-12-01 | Sheet metal high temperature tensile clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207650011U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109781516A (en) * | 2018-12-28 | 2019-05-21 | 东北大学 | A kind of material strain original position EBSD observation test fixture and the test method |
| CN110618026A (en) * | 2019-08-23 | 2019-12-27 | 北京星航机电装备有限公司 | Sample clamping method for testing high-temperature tensile property of metal sheet |
| CN112414837A (en) * | 2020-11-06 | 2021-02-26 | 上海电气核电设备有限公司 | Clamping method of high-temperature sheet tensile sample |
| CN114018688A (en) * | 2021-10-09 | 2022-02-08 | 唐山钢铁集团有限责任公司 | Test sample, clamp and method for testing thermal simulation tensile property of laser tailor-welded blank |
-
2017
- 2017-12-01 CN CN201721649321.XU patent/CN207650011U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109781516A (en) * | 2018-12-28 | 2019-05-21 | 东北大学 | A kind of material strain original position EBSD observation test fixture and the test method |
| CN109781516B (en) * | 2018-12-28 | 2024-02-02 | 东北大学 | Clamp for material strain in-situ EBSD observation test and test method |
| CN110618026A (en) * | 2019-08-23 | 2019-12-27 | 北京星航机电装备有限公司 | Sample clamping method for testing high-temperature tensile property of metal sheet |
| CN112414837A (en) * | 2020-11-06 | 2021-02-26 | 上海电气核电设备有限公司 | Clamping method of high-temperature sheet tensile sample |
| CN114018688A (en) * | 2021-10-09 | 2022-02-08 | 唐山钢铁集团有限责任公司 | Test sample, clamp and method for testing thermal simulation tensile property of laser tailor-welded blank |
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