CN102221500B - Clamp for testing tension and compression performance of laminated plate of composite - Google Patents
Clamp for testing tension and compression performance of laminated plate of composite Download PDFInfo
- Publication number
- CN102221500B CN102221500B CN201110107373A CN201110107373A CN102221500B CN 102221500 B CN102221500 B CN 102221500B CN 201110107373 A CN201110107373 A CN 201110107373A CN 201110107373 A CN201110107373 A CN 201110107373A CN 102221500 B CN102221500 B CN 102221500B
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- positioning table
- slide block
- bond pad
- bonding
- blind hole
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Abstract
The invention provides a clamp for testing a tension and compression performance of a laminated plate of a composite. The clamp is characterized in that: the clamp comprises a positioning bench, a slide block, a bonding block and a loading rod; the positioning bench has an L-shaped structure, a supporting surface of the positioning bench is provided with two paralleled through grooves, and the two through grooves symmetrically distribute relative to a central surface of the positioning bench in a thickness direction; the slide block has the L-shaped structure, and a side surface of the slide block contacting with the positioning bench is provided with two through holes; the bonding block has a cuboid structure, and the center of a side surface opposite to a bonding surface is provided with a threaded blind hole; and one end of the loading rod has outside thread for connecting with the threaded blind hole of the bonding block. In the invention, the bonding block and the loading rod are respectively designed and the positioning bench and the slide block are designed, so bonding of sample members is completely finished on the clamp without the interference of manpower, thereby the accuracy of bonding is improved, the centring requirement of the sample members, the bonding block and the loading rod are satisfied, and the test precision is improved.
Description
Technical field
The present invention relates to the composite property field tests, be specially a kind of anchor clamps that are used for composite laminated slab tensile and compressive property test.
Background technology
At present both at home and abroad when carrying out the test of composite laminated slab thickness direction tensile and compressive property; Adopt high-intensity epoxy glue that layer is closed slab sample coupon end often and the load bar end bonds together; In order to guarantee the accuracy of tensile and compressive property test; Avoid the unrelieved stress of bonding place, in existing technique for sticking, all will the shape the same with the sample coupon end be processed in the load bar end; But at present the time with load bar end and the bonding of sample coupon end; Often only be with range estimation or with ruler in the end than reciprocity method with definite to neutrality, will inevitably cause alignment deviation thus, and small alignment deviation also can influence the degree of accuracy of test result data.In addition, binding solidification process needs 24 hours set time at least, in this process, need load bar and sample coupon be kept fixing under certain pressure.In the existing technology; Often be fixed as the master with manual work or weight; And because the shape that the cross section is cohered in the shape of load bar own and load bar end is different, so build-up of pressure is inhomogeneous or mishap causes cohering not firm or the accuracy of alignment reduction easily in fixation procedure.
Summary of the invention
The technical matters that solves
Directly bind the variety of problems that causes for solving available technology adopting load bar and sample coupon, the present invention proposes a kind of anchor clamps that are used for composite laminated slab tensile and compressive property test.
Technical scheme
Technical scheme of the present invention is:
Said a kind of anchor clamps that are used for composite laminated slab tensile and compressive property test is characterized in that: comprise positioning table, slide block, two bond pads and two load bars; Positioning table is " L " type structure, on the positioning table supporting surface, has two parallel through slots, is used for being connected with slide block fixing, and two through slots are symmetrically distributed with respect to positioning table thickness direction central plane; Slide block also is " L " type structure, has two through holes on slide block and the side that positioning table contacts, and bolt passes through hole and through slot is fixed slide block and positioning table; Bond pad is a rectangular structure, and the bonding plane of bond pad is identical with composite laminated slab end surface shape to be measured, and the side side center relative with bonding plane has tapped blind hole; There is external thread load bar one end end, is used for being connected with the bond pad tapped blind hole.
A preferred version of the present invention is characterized in that: have two pressurization through holes on the slide block opposite side side, and two pressurization through holes are symmetrically distributed with respect to slide block thickness direction central plane.
A preferred version of the present invention; It is characterized in that: a groove is arranged on the positioning table supporting surface; Groove is positioned at positioning table thickness direction center; The side centre bit that bond pad contacts with positioning table is equipped with strip projected parts, the groove fit of strip projected parts and positioning table, and strip projected parts is parallel with the tapped blind hole central axis of bond pad.
Beneficial effect
The present invention is through designing bond pad and load bar respectively; And positioning table and slide block have been designed; Make the bonding process of sample coupon on anchor clamps, accomplish fully, do not need manual work to go again to intervene, improved the accuracy of the process of binding; Satisfied sample coupon, bond pad and load bar to neutral requirement, improved measuring accuracy.
Description of drawings
Fig. 1: structural representation of the present invention;
Fig. 2: the vertical view of positioning table;
Fig. 3: the side view of slide block;
Fig. 4: the vertical view of slide block;
Fig. 5: the side view of bond pad;
Wherein: 1, load bar; 2, positioning table; 3, slide block; 4, bond pad; 5, composite laminated slab to be measured
Embodiment
Below in conjunction with specific embodiment the present invention is described.
Embodiment:
Present embodiment is for carrying out the tensile and compressive property test to the composite laminated slab sample coupon of a kind of waist shape.Sample coupon is of a size of: it is 30mm that the sample coupon layer closes direction thickness, and end cross-sectional is a square, and the square length of side is 30mm.
With reference to accompanying drawing 1, described anchor clamps comprise positioning table 2, slide block 3, two bond pads 4 and two load bars 1.
With reference to accompanying drawing 1 and accompanying drawing 2, positioning table be " L " type structure, on the positioning table supporting surface, has two parallel through slots, is used for being connected with slide block fixing, and two through slots are with respect to the central plane symmetrical distribution of positioning table thickness direction; On the positioning table supporting surface, also have a groove, groove is positioned at the center of positioning table thickness direction, and parallel with two through slots, and groove is used for positioning bonding piece 4.
With reference to accompanying drawing 1, accompanying drawing 3 and accompanying drawing 4; Slide block 3 also is " L " type structure, and the thickness of slide block 3 is identical with the thickness of positioning table 2, has two through holes on slide block 3 and the side that positioning table 2 contacts; Be two through holes in the accompanying drawing 4; These two through holes are symmetrically distributed with respect to the central plane of slide block 3 thickness directions, and its effect is to cooperate with two through slots of positioning table 2, pass through hole through bolt and with through slot slide block 3 and positioning table 2 are fixed.On slide block 3 and side that bond pad contacts, also have two pressurization through holes; Be two pressurization through holes in the accompanying drawing 3; These two pressurization through holes also are symmetrically distributed with respect to the central plane of slide block 3 thickness directions, and its effect is through in the pressurization through hole, screwing in fastening bolt bond pad to be exerted pressure.
With reference to accompanying drawing 1 and accompanying drawing 5; Bond pad 4 is a rectangular structure; The bonding plane of bond pad 4 is identical with composite laminated slab 5 end face shape of cross sections to be measured, and center, a side side relative with bonding plane on the bond pad 4 has tapped blind hole, is used for being connected with the thread head of load bar 1 end.The side centre bit that bond pad 4 contacts with positioning table 2 is equipped with strip projected parts; Strip projected parts is parallel to the tapped blind hole central axis of bond pad 4; And the groove fit of strip projected parts and positioning table 2; Its effect is when bond pad 4 places on positioning table 2 supporting surfaces, and bond pad 4 is spacing, makes bond pad 4 be in the centre position of positioning table 2 thickness directions all the time.
In the present embodiment, the bonding plane of bond pad 4 is identical with sample coupon 5 end cross-sectional shapes, so the bond pad of selecting for use in the present embodiment 4 is rectangular structure, wherein bonding plane is a square, and the square length of side is 30mm.
After adopting high strength bonding glue that bond pad 4 and sample coupon 5 are sticked together, need carry out the bonding solidification process of 24h, this process is accomplished on positioning table 2.At first, sample coupon 5 two ends end faces place sample coupon 5 and bond pad 4 on the supporting surface of positioning table 2 after all getting well with the bonding plane bonding of bond pad 4.The groove fit of the strip projected parts of bond pad 4 and positioning table 2 makes bond pad 4 and sample coupon 5 all be in the centre position of positioning table 2 thickness directions.At this moment, the bond pad of sample coupon 5 one sides closely contacts with the short side of positioning table 2.Secondly, the bond pad of slide block 3 with sample coupon 5 opposite sides closely contacted, and with bolt that slide block 3 is fixing with positioning table 2, in the pressurization through hole of slide block 3, screw in fastening bolt again bond pad is exerted pressure.So, through behind the bonding solidification process of 24h, just on anchor clamps, accomplished bonding process to bond pad 4 and sample coupon 5.In this course; Guarantee that bond pad 4 and sample coupon 5 are in positioning table 2 thickness direction centre positions on carrying plane; And guarantee slide block 3 pressurization through holes along slide block 3 thickness direction central planes be symmetrically distributed and two pressurization through holes in fastening bolt bond pad is applied uniform pressure, be in the bonding process, to satisfy 5 pairs of neutral essential condition that require of bond pad 4 and sample coupon.
After the bonding process; Unclamp the set bolt of slide block 3 and positioning table 2; Take out bonding good bond pad 4 and screw in the tapped blind hole of bond pad 4 through the thread head of end respectively, be fixedly connected with bond pad 4 with 5, two load bars 1 of sample coupon; The other end of two load bars 1 is connected with external load equipment, and then the beginning performance test.Here key is that the center of the tapped blind hole of bond pad 4 will overlap with the geometric center that tapped blind hole belongs to face, thus satisfy load bar 1 and bond pad to neutral requirement.
Claims (2)
1. anchor clamps that are used for composite laminated slab tensile and compressive property test is characterized in that: comprise positioning table, slide block, two bond pads and two load bars; Positioning table is " L " type structure, on the positioning table supporting surface, has two parallel through slots, is used for being connected with slide block fixing, and two through slots are symmetrically distributed with respect to positioning table thickness direction central plane; Slide block also is " L " type structure, has two through holes on slide block and the side that positioning table contacts, and bolt passes through hole and through slot is fixed slide block and positioning table; Bond pad is a rectangular structure, and the bonding plane of bond pad is identical with composite laminated slab end surface shape to be measured, and the side side center relative with bonding plane has tapped blind hole; There is external thread load bar one end end, is used for being connected with the bond pad tapped blind hole; A groove is arranged on the positioning table supporting surface; Groove is positioned at positioning table thickness direction center; The side centre bit that bond pad contacts with positioning table is equipped with strip projected parts, the groove fit of strip projected parts and positioning table, and strip projected parts is parallel with the tapped blind hole central axis of bond pad.
2. a kind of anchor clamps that are used for composite laminated slab tensile and compressive property test according to claim 1 is characterized in that: have two pressurization through holes on the slide block opposite side side, and two pressurization through holes are symmetrically distributed with respect to slide block thickness direction central plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110107373A CN102221500B (en) | 2011-04-28 | 2011-04-28 | Clamp for testing tension and compression performance of laminated plate of composite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110107373A CN102221500B (en) | 2011-04-28 | 2011-04-28 | Clamp for testing tension and compression performance of laminated plate of composite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102221500A CN102221500A (en) | 2011-10-19 |
| CN102221500B true CN102221500B (en) | 2012-10-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110107373A Expired - Fee Related CN102221500B (en) | 2011-04-28 | 2011-04-28 | Clamp for testing tension and compression performance of laminated plate of composite |
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| CN (1) | CN102221500B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636387A (en) * | 2012-04-23 | 2012-08-15 | 西北工业大学 | Splicing assistant fixture used for pressure resistance performance test of composite material laminating thick plate |
| CN102944470B (en) * | 2012-11-07 | 2015-02-11 | 上海飞机制造有限公司 | Bending test jig assembly, bending test jig and compression test jig |
| CN110530718B (en) * | 2019-08-29 | 2021-12-17 | 江苏大学 | Double-shaft residual stress introducing device based on white light interferometry surface morphology |
| CN112798442B (en) * | 2020-12-11 | 2022-10-04 | 合肥维信诺科技有限公司 | Device and method for testing normal fatigue of rubber material |
| CN113155570B (en) * | 2021-04-23 | 2023-08-08 | 南京玻璃纤维研究设计院有限公司 | Device and method for preparing interlayer tensile test sample |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6330830B1 (en) * | 1999-08-03 | 2001-12-18 | David Lynn Sandoval | Tension/compression fatigue cracking grips |
| JP4700546B2 (en) * | 2006-04-12 | 2011-06-15 | 新日本製鐵株式会社 | High temperature tensile test jig |
| CN201269844Y (en) * | 2008-09-25 | 2009-07-08 | 中国科学院理化技术研究所 | Test fixture for testing tensile mechanical property of large-size material |
| CN201289448Y (en) * | 2008-09-27 | 2009-08-12 | 北京六建集团公司 | Special fixture for tensile test of aluminum alloy heat insulation section bar |
| CN101776550B (en) * | 2010-02-04 | 2011-04-27 | 西北工业大学 | Tensile test fixture used for tubular product sample |
| CN202075175U (en) * | 2011-04-28 | 2011-12-14 | 西北工业大学 | Clamp for testing pulling and pressing performance of composite-material laminating thick plate |
-
2011
- 2011-04-28 CN CN201110107373A patent/CN102221500B/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| 郑锡涛等.液体成形复合材料力学性能测试方法研究进展.《航空工程进展》.2010,第1卷(第1期),62-70. * |
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| CN102221500A (en) | 2011-10-19 |
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