CN203587434U - Flat-pressing test clamp for sandwich panels - Google Patents
Flat-pressing test clamp for sandwich panels Download PDFInfo
- Publication number
- CN203587434U CN203587434U CN201320693596.9U CN201320693596U CN203587434U CN 203587434 U CN203587434 U CN 203587434U CN 201320693596 U CN201320693596 U CN 201320693596U CN 203587434 U CN203587434 U CN 203587434U
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- Prior art keywords
- test
- flat
- pressing
- pressing block
- concora
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- Expired - Fee Related
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- 238000012360 testing method Methods 0.000 title claims abstract description 53
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 208000020442 loss of weight Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to a flat-pressing test clamp for sandwich panels and belongs to mechanical test clamps. The flat-pressing test clamp comprises an upper circular rod (1), an upper pressing block (2), a lower pressing block (4), a spherical support (5) and a lower circular rod (6), wherein flat-pressing test pieces (3) is placed between the upper pressing block (2) and the lower pressing block (4); an external thread is formed in the lower part of the upper circular rod (1); an inner thread hole is formed in the upper part of the upper pressing block (2); an external thread is formed in the upper part of the lower circular rod (6); an inner thread hole is formed in the lower part of the spherical support (5); a convex sphere is arranged on the lower part of the lower pressing block (4); a concave spherical surface corresponding to the convex sphere is formed in the upper part of the spherical support (5); semi-diameter of the convex sphere is 0.8-0.9 time of that of the concave spherical surface. The flat-pressing test clamp for sandwich panels is capable of performing flat-pressing test on current widely-used test machines, reducing test cost, self-adaptively adjusting loading angle and avoiding the condition that the load is uneven in the flat-pressing test.
Description
Technical field
The utility model is a kind of fixture for battenboard concora test, belongs to clamp for mechanics experiment technical field.
Background technology
Because compound substance has good specific strength, specific stiffness, the fields such as aviation, automobile and boats and ships adopt compound substance to carry out loss of weight to project organization in a large number.Battenboard is also a kind of compound substance, generally has two kinds of foam battenboard and honeycomb sandwich boards, gets more and more and uses in aircaft configuration.
Before carrying out structural design and stress analysis, first to carry out mechanical property test for material itself, wherein just comprise battenboard concora test.By this test, can obtain compression strenght and the modulus in compression of battenboard.American Society Testing and Materials (ASTM) has provided the concora test standard for battenboard: ASTM C365/C365M, and provided charger figure.This device adopts upper and lower two parallel loading platens, can realize axial compression and load.And allowing a platen fix, the self-adaptation that another platen adopts spherical bearing to realize compressive load regulates.Do is like this to consider that battenboard test specimen, in the process of manufacturing, can cause thickness of slab inhomogeneous.Now, if when battenboard is applied to the outer vertical load of face, probably make battenboard load inhomogeneous.Solution a: platen adopts spherical bearing, and guarantee that spherical bearing can rotational slide, can guarantee to be applied to load on battenboard even, reaches concora test object.
Charger figure in ASTM C365/C365M, although can meet concora test object, a whole set of charger cost is higher.In most of existing colleges and universities and institute of factory, most testing machines can complete the Mechanics Performance Testing test of bar and sheet material, cannot carry out the concora test of battenboard.So, design the utility model battenboard concora test fixture, can on existing most of testing machines, to battenboard, carry out concora crush mechanical property test, saved experimentation cost simultaneously.
summary of the inventionthe purpose of this utility model is to provide a kind of can carry out concora test on the testing machine of existing extensive employing, reduces experimentation cost, and self-adaptation regulates load angle simultaneously, solves the battenboard concora test fixture that loads inhomogeneous situation in concora test.
A fixture for battenboard concora test, is characterized in that comprising successively from top to down: upper pole, upper holder block, lower lock block, spherical bearing, lower pole; Wherein between upper holder block and lower lock block for placing concora crush test specimen;
The bottom of wherein going up pole has external thread, and the top of upper holder block has corresponding with it internal thread hole; Wherein descend the top of pole to have external thread, the bottom of spherical bearing has corresponding with it internal thread hole; Wherein the bottom of lower lock block is with protruding ball, and spherical bearing top has corresponding with it concave spherical surface, and the radius of its convexity ball is 0.8-0.9 times of concave spherical surface radius.
The radius of asking that is slightly less than spherical bearing with the radius of a ball of the lower lock block of protruding ball, contacts by the concave spherical surface of protruding sphere and spherical bearing.Pole is the part that conventional testing machine for mechanical properties loads clamping, and the compressive load that testing machine is applied is passed to upper lower lock block.Between lower lock block and spherical bearing, smear a little lubricating oil, can make the concave spherical surface of the protruding sphere of lower lock block and spherical bearing that relative sliding freely occurs, thereby self-adaptation is adjusted concora crush test specimen load angle, meets the test objective to concora crush test specimen uniform load.
The utility model battenboard concora test fixture can carry out concora test on the testing machine of existing extensive employing, meets the uniform testing requirements of concora crush test specimen face external compression load simultaneously.Assembly operation is simple, adds carried convenient, has controlled experimentation cost simultaneously, is easy to realize the batch testing of battenboard flat crush resistance.
Accompanying drawing explanation
Fig. 1 is that the utility model is implemented structural representation;
Number in the figure title: 1, upper pole, 2, upper holder block, 3, concora crush test specimen, 4, lower lock block, 5, spherical bearing, 6, lower pole.
Embodiment
With embodiment, the utility model is further illustrated by reference to the accompanying drawings:
As shown in Figure 1, battenboard concora test fixture comprises: threaded upper pole 1, upper holder block 2, the lower lock block 4 with protruding ball, spherical bearing 5, threaded lower pole 6.First by two screwed poles, respectively in the threaded hole of precession upper holder block and spherical bearing, more upper and lower two poles are sandwiched to testing machine carry in the bar-shaped fixture of standard, adjustment holding force.After the even coating lubricating oil of Internal Spherical Surface of spherical bearing, will be positioned on spherical bearing with the lower lock block of protruding ball, make, between surface of contact, relative sliding freely to occur so far battenboard concora test fixture installation.Between upper lower lock block, put into concora crush test specimen, make briquetting cover test specimen completely, can start test.
Claims (1)
1. a fixture for battenboard concora test, is characterized in that comprising successively from top to down: upper pole (1), upper holder block (2), lower lock block (4), spherical bearing (5), lower pole (6);
Wherein between upper holder block (2) and lower lock block (4) for placing concora crush test specimen (3);
The bottom of wherein going up pole (1) has external thread, and the top of upper holder block (2) has corresponding with it internal thread hole;
Wherein descend the top of pole (6) to have external thread, the bottom of spherical bearing (5) has corresponding with it internal thread hole;
Wherein the bottom of lower lock block (4) is with protruding ball, and spherical bearing (5) top has corresponding with it concave spherical surface, and the radius of its convexity ball is 0.8-0.9 times of concave spherical surface radius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320693596.9U CN203587434U (en) | 2013-11-05 | 2013-11-05 | Flat-pressing test clamp for sandwich panels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320693596.9U CN203587434U (en) | 2013-11-05 | 2013-11-05 | Flat-pressing test clamp for sandwich panels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203587434U true CN203587434U (en) | 2014-05-07 |
Family
ID=50585337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320693596.9U Expired - Fee Related CN203587434U (en) | 2013-11-05 | 2013-11-05 | Flat-pressing test clamp for sandwich panels |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203587434U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241751A (en) * | 2015-09-28 | 2016-01-13 | 哈尔滨工业大学 | Assembly clamper for sandwich structure board lateral compression test |
| CN106680076A (en) * | 2016-11-21 | 2017-05-17 | 江苏亨通光电股份有限公司 | Edgewise compressive testing device of loose tube for optical cable |
-
2013
- 2013-11-05 CN CN201320693596.9U patent/CN203587434U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241751A (en) * | 2015-09-28 | 2016-01-13 | 哈尔滨工业大学 | Assembly clamper for sandwich structure board lateral compression test |
| CN105241751B (en) * | 2015-09-28 | 2017-11-03 | 哈尔滨工业大学 | A kind of assembling fixture for sandwich structure plate lateral pressure test |
| CN106680076A (en) * | 2016-11-21 | 2017-05-17 | 江苏亨通光电股份有限公司 | Edgewise compressive testing device of loose tube for optical cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20151105 |
|
| EXPY | Termination of patent right or utility model |