CN217180307U - Composite material high-temperature tensile test tool - Google Patents
Composite material high-temperature tensile test tool Download PDFInfo
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- CN217180307U CN217180307U CN202220054310.1U CN202220054310U CN217180307U CN 217180307 U CN217180307 U CN 217180307U CN 202220054310 U CN202220054310 U CN 202220054310U CN 217180307 U CN217180307 U CN 217180307U
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- locking sleeve
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Abstract
The utility model discloses a combined material high temperature tensile test frock belongs to combined material tensile test technical field, and it can be partial at least when solving clamping test piece among the prior art axiality and the problem that the centering degree is not good, the utility model discloses a combined material high temperature tensile test frock, including the anchor clamps body that is used for the clamping test piece, the anchor clamps body includes columniform anchor clamps that go up, goes up the anchor clamps bottom and is equipped with the double-layered groove that is used for centre gripping test piece tip A, still including the assistance-localization real-time component that is used for adjusting test piece centering degree and axiality, the bottom of anchor clamps is located to the assistance-localization real-time component, and the assistance-localization real-time component includes: the limiting cushion blocks are positioned in the clamping grooves, and the two sides of the end part A are provided with the limiting cushion blocks; the locking sleeve is sleeved at the bottom of the upper clamp, the limiting cushion blocks are all located in the locking sleeve, and the locking sleeve locks the test piece through the end part A of the test piece locked by the limiting cushion blocks.
Description
Technical Field
The utility model relates to a combined material tensile test technical field, concretely relates to combined material high temperature tensile test frock.
Background
The mechanical property tests of the existing composite material comprise a fatigue test, a tensile test, a compression test, a bending/short beam shearing test and an environmental test.
For a high-temperature tensile test, standard high-temperature performance equipment is used, and a precise test tool is matched to complete the high-temperature tensile strength test of the composite material, according to technical supports provided by QAVIC06185.1-2015, GB/T12160, GB/T23805, JJG141, GB/T16825.1 and the like, the test tool has relatively limited requirements on manufacturing (length, width, angle and the like) of a test piece, the test is a destructive test, and the cost is relatively high for the composite material.
The coaxiality and the alignment degree of the existing composite material high-temperature tensile tester are poor when a test piece is clamped, so that the test data has high discreteness and low accuracy.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a combined material high temperature tensile test frock for it is not good with the centering degree to solve among the prior art combined material high temperature tensile test frock axiality when the clamping test piece, the data discreteness that leads to the test is great, the not high problem of the degree of accuracy.
In order to solve the technical problem, the utility model discloses a following scheme:
the utility model provides a combined material high temperature tensile test frock, includes the anchor clamps body that is used for the centre gripping test piece, and the anchor clamps body includes columniform anchor clamps that go up, goes up the anchor clamps bottom and is equipped with the double-layered groove that is used for centre gripping test piece tip A, still including the assistance-localization real-time component that is used for adjusting test piece centering degree and axiality, and the bottom of anchor clamps is located to the assistance-localization real-time component, and the assistance-localization real-time component includes:
the limiting cushion blocks are positioned in the clamping grooves, and the two sides of the end part A are provided with the limiting cushion blocks;
the locking sleeve is sleeved at the bottom of the upper clamp, the limiting cushion blocks are all located in the locking sleeve, and the locking sleeve locks the test piece through the end part A of the test piece locked by the limiting cushion blocks.
Optionally, the shape of the clamping groove is a dovetail groove, the end portion a of the test piece is clamped in the dovetail groove, and the shape of the limiting cushion block is matched with the shape of the clamping groove.
Optionally, the longitudinal section of the limiting cushion block perpendicular to the dovetail groove is trapezoidal, one side of the limiting cushion block is matched with the side face of the test piece, and the other side of the limiting cushion block is matched with the inner peripheral wall of the locking sleeve.
Optionally, the bottom of the upper clamp is provided with a boss matched with the locking sleeve, the bottom of the boss is provided with a convex limiting structure, the boss is sleeved with the locking sleeve, and the locking sleeve is arranged on the limiting structure.
Optionally, the limiting structure is a limiting ring structure or a limiting point structure, when the limiting structure is the limiting point structure, the limiting points are uniformly distributed along the circumferential direction of the upper fixture, and the limiting points are located at the bottom of the boss.
Optionally, the limiting structure is a limiting ring structure, and the limiting ring is located at the bottom of the boss.
Optionally, an external thread is arranged on the boss, an internal thread matched with the external thread is arranged in the locking sleeve, and the locking sleeve is in threaded connection with the boss.
Optionally, the fixture body further includes a lower fixture identical to the upper fixture, the lower fixture and the upper fixture are coaxially arranged, a clamping groove of the lower fixture is located at the top of the lower fixture, and the end portion B of the test piece is clamped in the clamping groove of the lower fixture.
Optionally, the top of the upper clamp and the bottom of the lower clamp are respectively provided with a through hole for fixing the upper clamp and the lower clamp.
Optionally, the fixture body and the auxiliary positioning member are made of ceramic materials capable of withstanding high temperatures of 800 ℃ to 1200 ℃.
The utility model discloses beneficial effect who has:
the utility model discloses in the scheme, combined material high temperature tensile test frock, including the anchor clamps body that is used for the centre gripping test piece, the anchor clamps body includes columniform anchor clamps that go up, goes up the anchor clamps bottom and is equipped with the double-layered groove that is used for centre gripping test piece tip A, still including the assistance-localization real-time component that is used for adjusting test piece centering degree and axiality, the bottom of anchor clamps is located to the assistance-localization real-time component, and the assistance-localization real-time component includes:
the limiting cushion blocks are positioned in the clamping grooves, and the two sides of the end part A are provided with the limiting cushion blocks;
the locking sleeve is sleeved at the bottom of the upper clamp, the limiting cushion blocks are all located in the locking sleeve, and the locking sleeve locks the test piece through the end part A of the test piece locked by the limiting cushion blocks.
The function is as follows: set up spacing cushion through the both sides at test piece tip A, simultaneously through locking sleeve with spacing cushion and test piece locking, thereby make the test piece by spacing cushion locking in the middle part position of pressing from both sides the groove, because all of the both sides of test piece are equipped with spacing cushion, therefore, locking sleeve locking test piece back, the test piece is the vertical state of nature, only need the distance of anchor clamps about the adjustment afterwards, accomplish the clamping of test piece tip B, centering degree and axiality requirement when can making the test piece accord with the test.
Therefore, through the mode of adding the auxiliary positioning component, the accuracy of test data can be ensured, the adjusting difficulty of coaxiality and centering degree when an experimenter clamps a test piece is reduced, the use of the experimenter is facilitated, and the test efficiency is improved.
Drawings
Fig. 1 is a schematic perspective view of the prior art of the present invention;
fig. 2 is a schematic perspective view of a first embodiment of the present invention;
fig. 3 is a left side view schematically illustrating a first embodiment of the present invention;
FIG. 4 is a schematic perspective view of the cushion block of the present invention;
FIG. 5 is a schematic view of the three-dimensional structure of the test piece of the present invention;
fig. 6 is a left side view schematically illustrating an embodiment of the present invention.
Reference numerals:
1-upper clamp, 101-boss, 102-spacing ring, 103-clamping groove, 104-through hole, 105-external thread, 2-lower clamp, 3-test piece, 301-end A, 302-end B, 4-auxiliary positioning component, 401-spacing cushion block, and 402-locking sleeve.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and the terms are only for convenience of description of the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be further noted that, unless otherwise explicitly specified or limited, the terms "disposed," "opened," "mounted," "connected," and "connected" are to be construed broadly, e.g., as either a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention is explained in detail below with reference to the figures and with reference to exemplary embodiments:
the first embodiment is as follows:
as shown in fig. 2 to 5, a combined material high temperature tensile test frock, including the anchor clamps body that is used for centre gripping test piece 3, the anchor clamps body includes columniform anchor clamps 1 that goes up, goes up anchor clamps 1 bottom and is equipped with the double-layered groove 103 that is used for 3 tip a301 of centre gripping test piece, still includes the auxiliary positioning component 4 that is used for adjusting test piece 3 to neutrality and axiality, and the bottom of anchor clamps 1 is located to auxiliary positioning component 4, and auxiliary positioning component 4 includes:
the limiting cushion blocks 401 are positioned in the clamping grooves 103, and the limiting cushion blocks 401 are arranged on two sides of the end part A301;
the locking sleeve 402 is sleeved at the bottom of the upper clamp 1, the limiting cushion blocks 401 are located in the locking sleeve 402, and the locking sleeve 402 locks the end portion A301 of the test piece 3 through the limiting cushion blocks 401 so as to lock the test piece 3.
Specifically, as shown in fig. 2 and 4, the shape of the clip groove 103 is a dovetail groove, the end portion a301 of the test piece 3 is clamped in the dovetail groove, and the shape of the limiting cushion block 401 is matched with the shape of the clip groove 103.
Specifically, as shown in fig. 4 and 5, a longitudinal section of the limiting cushion block 401 perpendicular to the dovetail groove is trapezoidal, one side of the limiting cushion block 401 is adapted to the side surface of the test piece 3, and the other side of the limiting cushion block 401 is adapted to the inner peripheral wall of the locking sleeve 402.
Specifically, as shown in fig. 2 and fig. 3, a boss 101 adapted to the locking sleeve 402 is disposed at the bottom of the upper fixture 1, a protruding limiting structure is disposed at the bottom of the boss 101, the boss 101 is sleeved with the locking sleeve 402, and the locking sleeve 402 is disposed on the limiting structure.
Specifically, the limiting structure is in a limiting ring 102 structure or a limiting point structure, and when the limiting structure is in the limiting point structure, the limiting points are uniformly distributed along the circumferential direction of the upper fixture 1, and the limiting points are located at the bottom of the boss 101.
Specifically, the limiting structure is a limiting ring 102 structure, and the limiting ring 102 is located at the bottom of the boss 101.
Specifically, the fixture body further comprises a lower fixture 2 which is the same as the upper fixture 1, the lower fixture 2 and the upper fixture 1 are coaxially arranged, a clamping groove 103 of the lower fixture 2 is located at the top of the lower fixture 2, and an end portion B302 of the test piece 3 is clamped in the clamping groove 103 of the lower fixture 2.
Specifically, the top of the upper clamp 1 and the bottom of the lower clamp 2 are respectively provided with a through hole 104 for fixing the upper clamp 1 and the lower clamp 2.
Specifically, the clamp body and the auxiliary positioning member 4 are made of ceramic materials capable of withstanding high temperatures of 800 ℃ to 1200 ℃.
The working flow and working principle in this embodiment are as follows:
the workflow of this embodiment:
firstly, sleeving a locking sleeve 402 on an upper clamp 1, and then fixing the upper clamp 1 at the upper end of the test equipment by matching a through hole 104 at the top of the upper clamp 1 with a positioning pin;
secondly, then, clamping the test piece 3, clamping the end part A301 of the test piece 3 in the clamping groove 103 of the upper clamp 1, then embedding a limiting cushion block 401 at two sides of the end part A301 of the test piece 3, then enabling the locking sleeve 402 to slide downwards, enabling the bottom of the limiting sleeve to be in contact with the top of the limiting ring 102, at the moment, enabling the limiting cushion blocks 401 to be located in the locking sleeve 402, enabling the test piece 3 to be located in the middle of the clamping groove 103 and to be in a vertical state;
and thirdly, fixing the lower clamp 2 at the lower end of the testing equipment by matching the through hole 104 at the bottom of the lower clamp 2 with the positioning pin, then adjusting the distance between the upper clamp 1 and the lower clamp 2 and completing clamping of the end part B302 of the testing piece 3, so that the testing piece 3 is in a natural vertical state and the test coaxiality and the alignment degree are met.
The working principle of the embodiment is as follows:
set up spacing cushion 401 through the both sides at 3 tip A301 of test piece, simultaneously through locking sleeve 402 with spacing cushion 401 and test piece 3 locking, thereby make test piece 3 by spacing cushion 401 locking at the middle part position of double-layered groove 103, because all be equipped with spacing cushion 401 of the both sides of test piece 3, therefore, locking sleeve 402 locks behind the test piece 3, test piece 3 is the vertical state of nature, only need adjust the distance of anchor clamps 2 from top to bottom afterwards, accomplish the clamping of 3 tip B302 of test piece, centering degree and axiality requirement when can making test piece 3 accord with the test.
Therefore, through the mode of additionally arranging the auxiliary positioning component 4, the accuracy of test data can be ensured, and the adjusting difficulty of coaxiality and centering degree when the experimenter clamps the test piece 3 is reduced, so that the experimenter can conveniently use the test piece, and the test efficiency is improved.
Example two:
specifically, as shown in fig. 6, an external thread 105 is provided on the boss 101, an internal thread adapted to the external thread 105 is provided in the locking sleeve 402, and the locking sleeve 402 is spirally connected to the boss 101.
In this embodiment, the rest of the structure in this embodiment is the same as that in the first embodiment.
The locking sleeve 402 of this embodiment is located on the boss 101 of the upper clamp 1 through the mode cover of threaded connection, can be so that more firm after the clamping of test piece 3, avoid among the experimentation, lead to test piece 3 to remove the back because of uncontrollable factor, influence the centering degree and the axiality problem of test piece 3.
It is to be understood that the above embodiments are merely exemplary embodiments that have been employed to illustrate the principles of the present invention, and that the present invention is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (10)
1. The utility model provides a combined material high temperature tensile test frock, includes the anchor clamps body that is used for centre gripping test piece (3), the anchor clamps body includes columniform anchor clamps (1) of going up, it is equipped with clamp groove (103) that are used for centre gripping test piece (3) tip A (301) to go up anchor clamps (1) bottom, a serial communication port, still including being used for adjusting auxiliary positioning component (4) of test piece (3) centering degree and axiality, the bottom of anchor clamps (1) is located in auxiliary positioning component (4), auxiliary positioning component (4) include:
the limiting cushion blocks (401) are positioned in the clamping grooves (103), and the limiting cushion blocks (401) are arranged on two sides of the end part A (301);
the locking sleeve (402) is sleeved at the bottom of the upper clamp (1), the limiting cushion blocks (401) are located in the locking sleeve (402), and the locking sleeve (402) locks the end part A (301) of the test piece (3) through the limiting cushion blocks (401) and then locks the test piece (3).
2. The composite material high-temperature tensile test tool according to claim 1, wherein the clamp groove (103) is in a dovetail groove shape, the end part A (301) of the test piece (3) is clamped in the dovetail groove, and the shape of the limiting cushion block (401) is matched with the shape of the clamp groove (103).
3. The composite material high-temperature tensile test tool according to claim 2, wherein a longitudinal section of the limiting cushion block (401) perpendicular to the dovetail groove is trapezoidal, one side of the limiting cushion block (401) is matched with the side face of the test piece (3), and the other side of the limiting cushion block (401) is matched with the inner peripheral wall of the locking sleeve (402).
4. The composite material high-temperature tensile test tool according to claim 1, wherein a boss (101) matched with the locking sleeve (402) is arranged at the bottom of the upper clamp (1), a convex limiting structure is arranged at the bottom of the boss (101), the locking sleeve (402) is sleeved on the boss (101), and the locking sleeve (402) is arranged on the limiting structure.
5. The composite material high-temperature tensile test tool according to claim 4, wherein the limiting structure is in a limiting ring (102) structure or a limiting point structure, when the limiting structure is in the limiting point structure, the limiting points are uniformly distributed along the circumferential direction of the upper clamp (1), and the limiting points are located at the bottom of the boss (101).
6. The composite material high-temperature tensile test tool according to claim 5, wherein the limiting structure is a limiting ring (102) structure, and the limiting ring (102) is located at the bottom of the boss (101).
7. The composite material high-temperature tensile test tool according to claim 4, wherein an external thread (105) is arranged on the boss (101), an internal thread matched with the external thread (105) is arranged in the locking sleeve (402), and the locking sleeve (402) is in threaded connection with the boss (101).
8. The composite material high-temperature tensile test tool according to claim 1, wherein the clamp body further comprises a lower clamp (2) which is the same as the upper clamp (1), the lower clamp (2) and the upper clamp (1) are coaxially arranged, a clamping groove (103) of the lower clamp (2) is located at the top of the lower clamp (2), and an end portion B (302) of the test piece (3) is clamped in the clamping groove (103) of the lower clamp (2).
9. The composite material high-temperature tensile test tool according to claim 8, wherein through holes (104) for fixing the upper clamp (1) and the lower clamp (2) are respectively formed in the top of the upper clamp (1) and the bottom of the lower clamp (2).
10. The composite material high-temperature tensile test tool according to any one of claims 1 to 9, wherein the clamp body and the auxiliary positioning member (4) are made of ceramic materials capable of withstanding high temperatures of 800 ℃ to 1200 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220054310.1U CN217180307U (en) | 2022-01-11 | 2022-01-11 | Composite material high-temperature tensile test tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220054310.1U CN217180307U (en) | 2022-01-11 | 2022-01-11 | Composite material high-temperature tensile test tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217180307U true CN217180307U (en) | 2022-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220054310.1U Active CN217180307U (en) | 2022-01-11 | 2022-01-11 | Composite material high-temperature tensile test tool |
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| Country | Link |
|---|---|
| CN (1) | CN217180307U (en) |
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- 2022-01-11 CN CN202220054310.1U patent/CN217180307U/en active Active
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