CN105158066A - Universal testing machine and tensile sample clamp thereof - Google Patents
Universal testing machine and tensile sample clamp thereof Download PDFInfo
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- CN105158066A CN105158066A CN201510728661.0A CN201510728661A CN105158066A CN 105158066 A CN105158066 A CN 105158066A CN 201510728661 A CN201510728661 A CN 201510728661A CN 105158066 A CN105158066 A CN 105158066A
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Abstract
The invention discloses a tensile sample clamp. The tensile sample clamp comprises a supporting clamp and clamp blocks installed on the supporting clamp, and the gap between the two clamp blocks is used for clamping a sample to be tensioned. The tensile sample clamp further comprises a clamping apparatus and baffles. The clamping apparatus is provided with a clamping hole, the sample to be tensioned can penetrate through the clamping hole in the use process, and the clamping hole is opposite to the upper end of the gap between the two clamp blocks. The baffles are installed on the clamping apparatus and can extend into the gap between the two clamp blocks to limit the sample to be tensioned from inclining along the side end of the gap, and the center lines of the two opposite baffles coincide with the center line of the upper end of the gap between the two clamp blocks. By additionally arranging the clamping apparatus and installing the baffles on the clamping apparatus, under the limiting effect of the baffles, the sample to be tensioned is prevented from inclining when placed, meanwhile, it is guaranteed that the center line of the sample to be tensioned coincides with the center line of the gap between the two clamp blocks, and the accuracy of detecting the sample to be tensioned is guaranteed.
Description
Technical field
The present invention relates to detection technique field, in particular, relate to a kind of universal testing machine, more relate to a kind of fixture of tensile sample.
Background technology
Usually universal testing machine is adopted at present for the test of plastic sample pulling strengrth, in tension test process, needs tensile sample to be fixedly clamped by upper fixture and lower clamp, wherein, cupping machine lower clamp is fixed, and upper fixture rises, until sample is broken along with tractive force.Particularly, upper fixture is two fixture blocks, and tensile sample is clipped between two fixture blocks, realizes the clamping to tensile sample.In the process, the placement clamping of sample is people person's operation, and the operation requirements sample longitudinal axis overlaps with upper and lower clamp central line.When experimenter operates unskilled, there is certain angle in usual tensile sample and center line, and namely tensile sample there will be to tilt in various degree, and sample inclination can cause the on the low side of pulling strengrth, and influence technique personnel judge the analysis of material property.
Therefore, how preventing tensile sample from tilting, to ensure the accuracy detected tensile sample, is the current technical issues that need to address of those skilled in the art.
Summary of the invention
In view of this, the invention provides a kind of fixture of tensile sample, prevent tensile sample from tilting, to ensure the accuracy detected tensile sample.Present invention also offers a kind of universal testing machine with above-mentioned fixture.
For achieving the above object, the invention provides following technical scheme:
A kind of fixture of tensile sample, comprise support fixture and be arranged on the clamp block on described support fixture, gap between two described clamp blocks is for clamping sample to be tensioned, it also comprises: jig, described jig has the hole clipping that baffle plate and described sample to be tensioned can pass, wherein, the upper end, gap between described hole clipping with two described clamp blocks is relative; Baffle plate limits described sample to be tensioned along the inclination of described gap side for stretching in the gap between two described clamp blocks, and the center line of two described baffle plates positioned opposite overlaps with the center line of the upper end, gap between two described clamp blocks.
Preferably, in above-mentioned fixture, described baffle plate is perpendicular to the relative opposite face of two described clamp blocks, and the distance between relative two described baffle plates equals the width of sample to be tensioned.
Preferably, in above-mentioned fixture, described baffle plate along equal perpendicular to the distance between two described clamp block opposite faces sample thickness to be tensioned 2/1 to three/3rds between.
Preferably, in above-mentioned fixture, one group of opposed end of described jig all has the flap for being fastened between two described clamp blocks.
Preferably, in above-mentioned fixture, described hole clipping and sample clearance fit to be tensioned, and the center line of upper end, gap between the central axis of described hole clipping with two described clamp blocks overlaps.
Preferably, in above-mentioned fixture, the thickness of described baffle plate is 3-5mm.
Preferably, in above-mentioned fixture, described baffle plate is the sheet metal component being welded on described hole clipping both sides on described jig.
A kind of universal testing machine, comprise fixture, wherein, described fixture is the fixture described in above-mentioned any one.
Known via above-mentioned technical scheme, the invention discloses a kind of fixture of tensile sample, comprise support fixture and be arranged on the clamp block on support fixture, gap between two clamp blocks is for clamping sample to be tensioned, it also comprises: jig and baffle plate, and wherein, jig has hole clipping, sample to be tensioned can pass this hole clipping in use, and upper end, gap between hole clipping with two clamp blocks is relative; And baffle plate is arranged on jig, can extend in the gap between two clamp blocks and limit sample to be tensioned and tilt along gap side, and the center line of upper end, gap between the center line of positioned opposite two baffle plates with two clamp blocks overlaps.By increasing jig and install baffle plate on jig in the application, preventing the run-off the straight when placing sample to be tensioned from ensureing that the center line of sample to be tensioned overlaps with the center line in the gap of two clamp blocks by the restriction of baffle plate simultaneously, ensure that sample detection accuracy to be tensioned.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
The structural representation of the jig of the tensile sample that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the AA direction view of Fig. 2;
The structural representation being provided with the fixture of jig that Fig. 4 provides for the embodiment of the present invention;
Fig. 5 is the vertical view of Fig. 4;
Fig. 6 is the BB direction view of Fig. 4.
Embodiment
Core of the present invention is to provide a kind of fixture of tensile sample, prevents tensile sample from tilting, to ensure the accuracy detected tensile sample.Another core of the present invention is to provide a kind of universal testing machine with above-mentioned fixture.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in figs 1 to 6, the invention discloses a kind of fixture of tensile sample, the clamp block 2 comprising support fixture 1 and be arranged on support fixture 1, gap between two clamp blocks 2 is for clamping sample to be tensioned, it also comprises jig 3, and jig 3 has hole clipping 31 and baffle plate 32, wherein, sample to be tensioned can pass this hole clipping 31 in use, and upper end, gap between hole clipping 31 with two clamp blocks 2 is relative; And baffle plate 32 is arranged on jig 3, can extend in the gap between two clamp blocks 2 and limit sample to be tensioned and tilt along gap side, and the center line of upper end, gap between the center line of positioned opposite two baffle plates 32 with two clamp blocks 2 overlaps.In the application by increase jig 3 and on jig 3 install baffle plates 32, preventing the run-off the straight when placing sample to be tensioned from ensureing that the center line of sample to be tensioned overlaps with the center line in the gap of two clamp blocks 2 by the restriction of baffle plate 32 simultaneously, ensure that sample detection accuracy to be tensioned.
Be set to by baffle plate 32 perpendicular to the relative opposite face of two clamp blocks 2 in the application, namely baffle plate 32 and clamp block 2 form the device of the circumferential degree of freedom of restriction sample to be tensioned.Baffle plate 32 and clamp block 2 are arranged vertically, the contact area of baffle plate 32 and clamp block 2 and sample to be tensioned can be increased.In practice, also baffle plate 32 can be in tilted layout relative to clamp block 2, as long as can realize preventing sample to be tensioned from tilting.
In specific embodiment, baffle plate 32 along equal perpendicular to the distance between two fixture opposite faces sample thickness to be tensioned 2/1 to three/3rds between, the preferably half of sample thickness to be tensioned, to ensure in use, fixing effect is played in the side that baffle plate 32 can treat tensile sample, prevent from clipping to baffle plate 32 with clamp block 2 in drawing process simultaneously in sample clamping process to be tensioned, damage baffle plate 32.In preferred embodiment, baffle plate 32 is the critical component ensureing that sample vertical centering control to be tensioned is positive, and material selects the sheet metal component after 3-5mm, is preferably 4mm thickness sheet metal component, by being welded to connect in hole clipping 31 both sides.
One group of opposed end of the jig 3 of fixture disclosed in the application all has the flap 33 for being fastened between two clamp blocks 2, can be fixed on the fixture of tensile sample by jig 3 by arranging flap 33, the jig 3 namely with flap 33 is integrally by blocking the mode location and installation of establishing on the fixture of original universal testing machine.The mode structure of being established by card is simple, convenient disassembly, and does not need to change original clamp structure, in practice, the mode of screw also can be adopted to realize the connection of jig 3 and fixture.Preferably, the distance between the flap 33 of the opposed end of jig 3 is set to equal the distance between two clamp blocks, 2 one groups of opposite faces.
In further enforcement, by hole clipping 31 and sample clearance fit to be tensioned, and ensure that the center line of the upper end, gap between the central axis of hole clipping 31 with two clamp blocks 2 overlaps, by the center line of the upper end, gap between the central axis of hole clipping 31 with clamp block 2 is overlapped, can can ensure that sample to be tensioned overlaps with the center line of clamp block 2 when sample to be tensioned being put into hole clipping 31, the accuracy of the position of further raising jig 3 disclosed in the present application, thus improve the accuracy detected.
In addition, disclosed herein as well is a kind of universal testing machine, it comprises fixture, and this fixture is such as fixture disclosed in any one of above-described embodiment, and therefore, the universal testing machine with this fixture also has above-mentioned all technique effects, and this is no longer going to repeat them.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (8)
1. the fixture of a tensile sample, comprise support fixture (1) and be arranged on the clamp block (2) on described support fixture (1), gap between two described clamp blocks (2) is for clamping sample to be tensioned, it is characterized in that, also comprise: jig (3), described jig (3) has the hole clipping (31) that baffle plate (32) and described sample to be tensioned can pass, wherein, the upper end, gap between described hole clipping (31) with two described clamp blocks (2) is relative; Baffle plate (32) limits described sample to be tensioned along the inclination of described gap side for stretching in the gap between two described clamp blocks (2), and the center line of two described baffle plates (32) positioned opposite overlaps with the center line of the upper end, gap between two described clamp blocks (2).
2. fixture according to claim 1, it is characterized in that, described baffle plate (32) is perpendicular to the relative opposite face of two described clamp blocks (2), and the distance between relative two described baffle plates (32) equals the width of sample to be tensioned.
3. fixture according to claim 2, is characterized in that, described baffle plate (32) along perpendicular to the distance between two described clamp block (2) opposite faces equal sample thickness to be tensioned 2/1 to three/3rds between.
4. the fixture according to any one of claim 1-3, is characterized in that, one group of opposed end of described jig (3) all has the flap (33) for being fastened between two described clamp blocks (2).
5. fixture according to claim 4, it is characterized in that, described hole clipping (31) and sample clearance fit to be tensioned, and the center line of upper end, gap between the central axis of described hole clipping (31) with two described clamp blocks (2) overlaps.
6. fixture according to claim 4, is characterized in that, the thickness of described baffle plate (32) is 3-5mm.
7. fixture according to claim 4, is characterized in that, described baffle plate (32) is for being welded on the sheet metal component of upper described hole clipping (31) both sides of described jig (3).
8. a universal testing machine, comprises fixture, it is characterized in that, described fixture is the fixture as described in any one of claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510728661.0A CN105158066A (en) | 2015-10-29 | 2015-10-29 | Universal testing machine and tensile sample clamp thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510728661.0A CN105158066A (en) | 2015-10-29 | 2015-10-29 | Universal testing machine and tensile sample clamp thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105158066A true CN105158066A (en) | 2015-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510728661.0A Pending CN105158066A (en) | 2015-10-29 | 2015-10-29 | Universal testing machine and tensile sample clamp thereof |
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| CN (1) | CN105158066A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201653798U (en) * | 2010-03-31 | 2010-11-24 | 河北理工大学 | Assistant clamp for tensile test of material mechanics tester |
| CN202188986U (en) * | 2011-09-08 | 2012-04-11 | 中国石油天然气集团公司管材研究所 | Positioning and centering clamping tool |
| JP2014048144A (en) * | 2012-08-31 | 2014-03-17 | Tokyo Gas Co Ltd | Unit for performing evaluation test on tabular test piece |
| CN104634654A (en) * | 2013-11-14 | 2015-05-20 | 珠海格力电器股份有限公司 | Auxiliary testing tooling |
| CN204422320U (en) * | 2015-02-03 | 2015-06-24 | 淮安市建筑工程检测中心有限公司 | A kind of steel stretching universal testing machine |
| CN204613021U (en) * | 2015-05-13 | 2015-09-02 | 中国飞机强度研究所 | A kind of centering assembly for testing machine |
| CN104897461A (en) * | 2015-06-16 | 2015-09-09 | 南京理工大学 | Dynamic tension experiment fixture |
| CN204694541U (en) * | 2015-05-27 | 2015-10-07 | 鞍钢股份有限公司 | A kind of high-speed stretch centralising device |
| CN205067223U (en) * | 2015-10-29 | 2016-03-02 | 珠海格力电器股份有限公司 | Universal tester and anchor clamps of tensile sample thereof |
-
2015
- 2015-10-29 CN CN201510728661.0A patent/CN105158066A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201653798U (en) * | 2010-03-31 | 2010-11-24 | 河北理工大学 | Assistant clamp for tensile test of material mechanics tester |
| CN202188986U (en) * | 2011-09-08 | 2012-04-11 | 中国石油天然气集团公司管材研究所 | Positioning and centering clamping tool |
| JP2014048144A (en) * | 2012-08-31 | 2014-03-17 | Tokyo Gas Co Ltd | Unit for performing evaluation test on tabular test piece |
| CN104634654A (en) * | 2013-11-14 | 2015-05-20 | 珠海格力电器股份有限公司 | Auxiliary testing tooling |
| CN204422320U (en) * | 2015-02-03 | 2015-06-24 | 淮安市建筑工程检测中心有限公司 | A kind of steel stretching universal testing machine |
| CN204613021U (en) * | 2015-05-13 | 2015-09-02 | 中国飞机强度研究所 | A kind of centering assembly for testing machine |
| CN204694541U (en) * | 2015-05-27 | 2015-10-07 | 鞍钢股份有限公司 | A kind of high-speed stretch centralising device |
| CN104897461A (en) * | 2015-06-16 | 2015-09-09 | 南京理工大学 | Dynamic tension experiment fixture |
| CN205067223U (en) * | 2015-10-29 | 2016-03-02 | 珠海格力电器股份有限公司 | Universal tester and anchor clamps of tensile sample thereof |
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Application publication date: 20151216 |
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| RJ01 | Rejection of invention patent application after publication |