CN215004674U - Adjustable axial loading test fixture for stiffened wall plate - Google Patents
Adjustable axial loading test fixture for stiffened wall plate Download PDFInfo
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- CN215004674U CN215004674U CN202120655128.7U CN202120655128U CN215004674U CN 215004674 U CN215004674 U CN 215004674U CN 202120655128 U CN202120655128 U CN 202120655128U CN 215004674 U CN215004674 U CN 215004674U
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Abstract
The utility model discloses an adjustable axial loading test fixture for a reinforced wall plate, which comprises a left fixture, a right fixture, an upper fixture, a lower fixture, a balancing backing plate, an upper backing plate and a middle backing plate, wherein the left fixture comprises a fixed plate and a vertical plate vertical to the fixed plate, and the vertical plate and the fixed plate are respectively provided with a first connecting hole and an adjusting hole; the upper clamp is provided with a gap, the width of the gap is not less than the thickness of the long truss web, and the upper clamp is provided with a second connecting hole; a third connecting hole is formed in the lower clamp; a fourth connecting hole is formed in the balancing base plate; the upper base plate and the middle base plate are respectively provided with a fifth connecting hole and a sixth connecting hole; loading holes are formed in the same positions of the upper base plate, the upper clamp, the middle base plate and the lower clamp; the vertical plate is connected to the web plate, and the fixing plate is connected to the upper clamp; the upper clamp is connected to the edge strip of the stringer and the web is inserted into the gap; the lower clamp is connected to the skin; the balancing base plate is connected to the upper clamp; the upper base plate is connected with the upper clamp; the middle base plate is connected between the upper clamp and the lower clamp.
Description
Technical Field
The utility model relates to an aircraft stringer structural test technical field, concretely relates to add muscle wallboard axial loading test anchor clamps with adjustable.
Background
Compared with the traditional metal material, the composite material has the advantages of high specific strength and specific rigidity, corrosion resistance, designability and the like, and is widely applied to airplane structures. For example, the dosage of Boeing B787 aircraft composite material is up to 50%, and the fuselage and wing structure of the aircraft are both made of composite material, thus establishing a new milestone for the development of aviation composite material industry. With the large application of the composite material pieces along with a large amount of tests and verification work, the macroscopic mechanical property of the composite material laminate can be verified through the tests, and the structural characteristics of the composite material can also be tested and researched. The wing skin and the fuselage panel are mostly in the form of skin-lengthened girders, and a gluing process is adopted, so that a gluing performance test between the girders and the skin is a very important content.
For the axial load (tensile and compression) test of the reinforced wall plate, multiple configurations (different skin thicknesses and stringer thicknesses) are generally tested, if the reinforced wall plate is made into an integral clamp, different clamps are required to be designed for different configurations, the test scale is large, the design of a clamping clamp of a test piece is complex, the design and production cost is high, and the period is long; the traditional integral clamp is designed to be disposable, different test clamps are required to be designed for test pieces with different thicknesses and heights, the test pieces cannot be reused, resource waste is caused, and the test cost is high. Therefore, a new clamp scheme is needed to overcome the defects of the prior art in the prior art, and the clamp is suitable for axial load test of the reinforced wall plates with different thicknesses.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a add muscle wallboard axial load test anchor clamps with adjustable for solve the tradition and add the shortcoming that muscle wallboard axial load test anchor clamps do not possess the commonality, can not used repeatedly.
The utility model discloses a realize through following technical scheme:
an adjustable axial loading test fixture for a reinforced wall plate comprises a left fixture, a right fixture, an upper fixture, a lower fixture, a balancing base plate, an upper base plate and a middle base plate; the left clamp comprises a fixed plate and a vertical plate which is formed on one side and perpendicular to the fixed plate, a first connecting hole is formed in the vertical plate, an adjusting hole is formed in the fixed plate, and the right clamp and the left clamp are arranged in the same way; the upper clamp is provided with a long gap, the width of the gap is not less than the thickness of the long truss web, and the upper clamp is also provided with a plurality of second connecting holes; the lower clamp is provided with a plurality of third connecting holes; the trim base plate is provided with a plurality of fourth connecting holes; the upper backing plate and the middle backing plate are respectively provided with a plurality of fifth connecting holes and a plurality of sixth connecting holes; loading holes are formed in the same positions of the upper base plate, the upper clamp, the middle base plate and the lower clamp; the vertical plate is connected to a web plate of the stringer, and the fixed plate is connected to the upper clamp; the upper clamp is connected to the edge strip of the stringer, and the web plate is inserted into the notch; the lower clamp is connected to the skin and is away from one side of the stringer; the trim backing plate is connected to the upper clamp and used for filling a gap between the upper clamp and the skin; the upper backing plate is connected to the end part of the upper clamp; the middle base plate is connected between the upper clamp and the lower clamp; the adjusting holes are used for adjusting the connecting positions of the left clamp and the right clamp on the upper clamp according to the thickness of the web. Specifically, the reinforced wallboard is glued joint combination form by stringer (rib, stringer have web and flange) and covering, the stringer is L shape, T shape and worker shape generally, in order to carry out axial tensile and compression test to reinforced wallboard, need carry out the centre gripping to the corresponding anchor clamps of test piece both ends design and fix, the anchor clamps at both ends are identical completely. Specifically, the adjustable axial loading test fixture for the reinforced wall plate comprises a left fixture, a right fixture, an upper fixture, a lower fixture, an upper backing plate, a trim backing plate and a middle backing plate, wherein the left fixture and the right fixture are arranged on two sides of a stringer web plate of a reinforced wall plate test piece; the upper clamp is arranged on the upper side of the lower edge strip of the reinforced wall plate test piece; the lower clamp is arranged on the outer side of the skin of the reinforced wall plate; the upper base plate is arranged on the upper side of the end part of the upper clamp; the trim backing plate is arranged on the upper side of the skin, and the thickness of the trim backing plate is consistent with that of the stringer edge strip; the middle cushion block is arranged between the upper clamp and the lower clamp, and the clamps at the two ends of the reinforced wall plate test piece are completely consistent. Specifically, the utility model provides a test fixture is formed by the equipment of above-mentioned several kinds of anchor clamps and backing plate, and its equipment is simple, convenient to use, and manufacturing cost is lower. And loading holes are formed in the same positions of the upper base plate, the upper clamp, the middle base plate and the lower clamp and used for applying axial test loads to the reinforced wall plate. Preferably, the utility model discloses a left and right anchor clamps have all set up the regulation hole on, will left anchor clamps with right anchor clamps are connected to during on the web of stringer, when the web anchor clamps installation of less stringer of thickness variation, can satisfy the installation requirement through regulation hole fine setting anchor clamps position. For the stringers and the skins with different heights and thicknesses, the installation requirements can be met by adding flat gaskets with corresponding thicknesses below the left clamp, the right clamp and the balancing base plate. Specifically, in order to prevent the test piece from bending and twisting in the axial loading test of the reinforced wall plate, the symmetrical middle plane of the test fixture and the equivalent centroid (pressing center or bending center) of the test piece (namely the reinforced wall plate) need to be positioned on the same height plane, and the position of the symmetrical middle plane of the test fixture can be adjusted by adjusting the position of the upper base plate in a manner of adding a flat base plate.
Furthermore, the adjusting hole is a kidney-shaped hole. The adjusting holes are arranged to be waist-shaped holes, so that the positions of the left clamp and the right clamp can be finely adjusted conveniently to meet the installation requirements.
Further, a bolt connecting piece penetrates through the first connecting hole, the web and the connecting hole which is arranged on the right clamp in the same way, and the left clamp, the web and the right clamp are fixedly connected. Namely, the left clamp, the stringer and the right clamp are fixedly connected.
Further, a bolt connecting piece penetrates through the adjusting hole, the second connecting hole, the flange strip, the skin and the third connecting hole, and the left clamp, the right clamp, the upper clamp, the stringer, the skin and the lower clamp are fixedly connected. Namely, the left clamp, the upper clamp, the reinforced wall plate and the lower clamp are fixedly connected by using bolt connecting pieces; the right clamp is connected in the same manner as the left clamp.
Further, a bolt connecting piece penetrates through the second connecting hole, the fourth connecting hole, the skin and the third connecting hole, and the upper clamp, the balancing base plate, the skin and the lower clamp are fixedly connected.
Further, a bolt connecting piece penetrates through the fifth connecting hole, the second connecting hole, the sixth connecting hole and the third connecting hole, and the upper base plate, the upper clamp, the middle base plate and the lower clamp are fixedly connected.
The utility model has the advantages that:
the utility model discloses an experimental anchor clamps are split type design, except left anchor clamps and right anchor clamps, other parts all are the dull and stereotyped piece, and processing is simple, easy dismounting, and the configuration is unanimous, simple, convenient, practice thrift the cost. The utility model discloses a left and right anchor clamps are provided with waist type hole, and fine setting can be controlled and the experimental demand of holder that satisfies different thickness is satisfied, can be applicable to the centre gripping that adds the muscle wallboard test piece of different height and thickness through increasing dull and stereotyped backing plate adjustment fixture position, also can be applicable to different stringer (rib) forms, if worker shape, L shape, T shape etc. make its application scope wider, just the utility model provides a test fixture can used repeatedly.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is an assembly view of the axial loading test fixture of the present invention;
FIG. 2 is an exploded view of the axial loading test fixture of the present invention;
fig. 3 is a front view of the axial loading test fixture of the present invention.
In the figure: 1 left clamp, 2 right clamps, 3 upper clamps, 4 lower clamps, 5 trim tie plates, 6 upper tie plates, 7 middle tie plates, 8 loading holes, 9 stringers, 10 skins, 11 fixing plates, 12 vertical plates, 31 gaps, 32 second connecting holes, 41 third connecting holes, 51 fourth connecting holes, 61 fifth connecting holes, 71 sixth connecting holes, 91 web plates, 92 edge strips, 111 adjusting holes and 121 first connecting holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1-3, an adjustable axial loading test fixture for a stiffened wall panel comprises a left fixture 1, a right fixture 2, an upper fixture 3, a lower fixture 4, a balancing shim plate 5, an upper shim plate 6 and a middle shim plate 7; the left clamp 1 comprises a fixing plate 11 and a vertical plate 12 which is formed on one side and is perpendicular to the fixing plate 11, a first connecting hole 121 is formed in the vertical plate 12, an adjusting hole 111 (namely a waist-shaped hole 111) is formed in the fixing plate 11, and the right clamp 2 is completely consistent with the left clamp 1; the upper clamp 3 is provided with a long notch 31, the width of the notch 31 is not less than the thickness of the long truss web, and the upper clamp 3 is also provided with a plurality of second connecting holes 32; the lower clamp 4 is provided with a plurality of third connecting holes 41; the trim backing plate 5 is provided with a plurality of fourth connecting holes 51; the upper backing plate 6 and the middle backing plate 7 are respectively provided with a plurality of fifth connecting holes 61 and a plurality of sixth connecting holes 71; loading holes 8 are formed in the same positions of the upper base plate 6, the upper clamp 3, the middle base plate 7 and the lower clamp 4; the vertical plate 12 is connected to a web plate 91 of the stringer 9, and the fixing plate 11 is connected to the upper clamp 3; the upper clamp 3 is connected to the edge strip 92 of the stringer, and the web 91 is inserted into the gap 31; the lower clamp 4 is connected to the skin 10 on the side away from the stringer; the trim backing plate 5 is connected to the upper clamp 3 and used for filling a gap between the upper clamp 3 and the skin 10; the upper backing plate 6 is connected with the end part of the upper clamp 3; the middle cushion plate 7 is connected between the upper clamp 3 and the lower clamp 4; the kidney-shaped hole 111 is used for adjusting the connection position of the left clamp 1 and the right clamp 2 on the upper clamp 3 according to the thickness of the web 91.
Preferably, the left clamp 1, the web 91 (i.e. the stringer 9) and the right clamp 2 can be fixedly connected by using a bolt connector to pass through the first connecting hole 121, the web 91 (provided with a corresponding hole on the web 91) and the connecting hole on the right clamp 2 which are arranged in the same way; then, bolt connecting pieces penetrate through the second connecting holes 32, the fourth connecting holes 51, the skin 10 and the third connecting holes 41 to fixedly connect the upper clamp 3, the trim liner plate 5, the skin 10 and the lower clamp 4; the upper clamp 3, the trim shim plate 5, the skin 10 and the lower clamp 4 are fixedly connected by using bolt connecting pieces to penetrate through the second connecting hole 32, the fourth connecting hole 51, the skin 10 and the third connecting hole 41; the upper mat 6, the upper jig 3, the middle mat 7 and the lower jig 4 are fixedly connected by passing bolt connectors through the fifth connection hole 61, the second connection hole 32, the sixth connection hole 71 and the third connection hole 41.
In actual use: according to the notch 31 arranged on the upper clamp 3, the web plate 91 is inserted into the notch 31, all parts are fixedly connected according to the connection mode, namely, the clamp of the reinforced wall plate test piece is fixedly connected, and then the axial test load is applied to the reinforced wall plate test piece through the loading hole.
The above is that the preferred embodiment of the present invention is only used for explaining the present invention, and is not used for limiting the present invention. All obvious changes or variations led by the technical proposal of the utility model are still within the protection scope of the utility model.
Claims (6)
1. An adjustable axial loading test fixture for a reinforced wall plate is characterized by comprising a left fixture (1), a right fixture (2), an upper fixture (3), a lower fixture (4), a balancing base plate (5), an upper base plate (6) and a middle base plate (7); the left clamp (1) comprises a fixing plate (11) and a vertical plate (12) which is formed on one side and perpendicular to the fixing plate (11), a first connecting hole (121) is formed in the vertical plate (12), an adjusting hole (111) is formed in the fixing plate (11), and the right clamp (2) and the left clamp (1) are arranged in the same manner; the upper clamp (3) is provided with a long notch (31), the width of the notch (31) is not less than the thickness of the long truss web, and the upper clamp (3) is also provided with a plurality of second connecting holes (32); a plurality of third connecting holes (41) are formed in the lower clamp (4); a plurality of fourth connecting holes (51) are formed in the balancing base plate (5); the upper backing plate (6) and the middle backing plate (7) are respectively provided with a plurality of fifth connecting holes (61) and a plurality of sixth connecting holes (71); loading holes (8) are formed in the same positions of the upper base plate (6), the upper clamp (3), the middle base plate (7) and the lower clamp (4); the vertical plate (12) is connected to a web plate (91) of the stringer (9), and the fixing plate (11) is connected to the upper clamp (3); the upper clamp (3) is connected to the edge strip (92) of the stringer, and the web (91) is inserted into the notch (31); the lower clamp (4) is connected to the skin (10) and faces away from one side of the stringer; the trim backing plate (5) is connected to the upper clamp (3) and used for filling a gap between the upper clamp (3) and the skin (10); the upper backing plate (6) is connected to the end part of the upper clamp (3); the middle cushion plate (7) is connected between the upper clamp (3) and the lower clamp (4); the adjusting hole (111) is used for adjusting the connecting position of the left clamp (1) and the right clamp (2) on the upper clamp (3) according to the thickness of the web (91).
2. The adjustable stiffened panel axial loading test fixture of claim 1, wherein the adjustment hole (111) is a kidney-shaped hole.
3. The adjustable axial loading test fixture for stiffened wall panels according to claim 1, wherein the left fixture (1), the web (91) and the right fixture (2) are fixedly connected by a bolt connector through the same connecting holes on the first connecting hole (121), the web (91) and the right fixture (2).
4. The adjustable axial loading test fixture for stiffened wall panels according to claim 1, wherein the left fixture (1), the right fixture (2), the upper fixture (3), the stringer, the skin (10) and the lower fixture (4) are fixedly connected by a bolt connection through the adjusting hole (111), the second connecting hole (32), the bead (92), the skin (10) and the third connecting hole (41).
5. The adjustable axial loading test fixture for stiffened wall panels according to claim 1, wherein the upper fixture (3), the trim shim plate (5), the skin (10) and the lower fixture (4) are fixedly connected by a bolt connection through the second connecting hole (32), the fourth connecting hole (51), the skin (10) and the third connecting hole (41).
6. The adjustable axial loading test fixture for stiffened wall panels according to claim 1, wherein the upper tie plate (6), the upper fixture (3), the middle tie plate (7) and the lower fixture (4) are fixedly connected by a bolt connector through the fifth connecting hole (61), the second connecting hole (32), the sixth connecting hole (71) and the third connecting hole (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120655128.7U CN215004674U (en) | 2021-03-31 | 2021-03-31 | Adjustable axial loading test fixture for stiffened wall plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120655128.7U CN215004674U (en) | 2021-03-31 | 2021-03-31 | Adjustable axial loading test fixture for stiffened wall plate |
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| CN215004674U true CN215004674U (en) | 2021-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120655128.7U Active CN215004674U (en) | 2021-03-31 | 2021-03-31 | Adjustable axial loading test fixture for stiffened wall plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114184465A (en) * | 2021-12-17 | 2022-03-15 | 中国飞机强度研究所 | Composite material laminated plate stiffened plate impact monitoring test fixture |
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2021
- 2021-03-31 CN CN202120655128.7U patent/CN215004674U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114184465A (en) * | 2021-12-17 | 2022-03-15 | 中国飞机强度研究所 | Composite material laminated plate stiffened plate impact monitoring test fixture |
| CN114184465B (en) * | 2021-12-17 | 2024-02-23 | 中国飞机强度研究所 | Composite material laminated plate stiffened plate impact monitoring test fixture |
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