CN212904248U - Clamp for testing compression performance of composite material - Google Patents
Clamp for testing compression performance of composite material Download PDFInfo
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- CN212904248U CN212904248U CN202021732464.9U CN202021732464U CN212904248U CN 212904248 U CN212904248 U CN 212904248U CN 202021732464 U CN202021732464 U CN 202021732464U CN 212904248 U CN212904248 U CN 212904248U
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Abstract
The utility model relates to a combined material mechanical test technical field especially relates to a combined material is anchor clamps for compression performance test, include: the four compression blocks, the compression bolts, the bolt sleeve blocks and the mounting plate are arranged; the compression piece is the axial symmetric distribution, two of vertical homonymy the through hole of perpendicular to sample contact surface is seted up to the compression piece, has seted up the edge on two offside compression pieces through hole axis extension direction's round hole, the cell body of perpendicular to round hole is seted up to the compression piece side, and during the cell body was put into to the bolt cover piece, mounting panel fixed connection was used for fixing the bolt cover piece on the cell body, was provided with the screw hole that uses with the clamp bolt cooperation in the bolt cover piece, the utility model discloses a set up detachable bolt cover piece in the compression piece, reduced use cost, avoided because clamp bolt twists the interior slide wire that causes of compression piece many times to need the very high compression piece of replacement cost.
Description
Technical Field
The utility model relates to a combined material mechanical test technical field especially relates to a combined material is anchor clamps for compression performance test.
Background
With the development of science and technology, high-strength composite materials are widely applied to various fields, such as aerospace, aircraft manufacturing, sports and entertainment products, related technical fields of automobiles, ships, buildings, medical apparatuses, radars and the like, due to the superior performances of light dead weight, large bearing capacity, fatigue resistance, corrosion resistance and the like, common composite materials such as carbon fiber reinforced plastics, ultra-high molecular weight polyethylene fiber reinforced plastics and the like are more and more concerned about the compression performance test of the composite materials due to the wide application of the composite materials.
The composite material needs to be accurately installed in the clamp before compression, namely, good centering of the sample in the clamp is ensured, otherwise, the sample is stressed unevenly, stress concentration occurs, and the accuracy of the test is seriously influenced. The anchor clamps need make anchor clamps keep the tight state with the bolt when the use, however a large amount of experiments, and the operation to the bolt many times makes the bolt cover in the compression piece take place smooth silk very easily to make anchor clamps can not normal use, the compression piece of whole set of anchor clamps is bulky moreover, and is with higher costs, changes inconveniently.
In view of the above problems, the designer is based on the practical experience and professional knowledge that are abundant for many years in engineering application of such products, and is actively researched and innovated in cooperation with the application of theory, so as to create a clamp for testing the compression performance of the composite material, and the clamp is more practical.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the clamp for testing the compression performance of the composite material is provided, so that the problems in the background art are solved.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
a clamp for testing the compression performance of a composite material comprises: the four compression blocks, the compression bolts, the bolt sleeve blocks and the mounting plate are arranged; the compression blocks are distributed in an axial symmetry manner, through holes perpendicular to a sample contact surface are formed in the two compression blocks on the same side, round holes along the extension direction of the axis of the through holes are formed in the two compression blocks on the opposite side, groove bodies perpendicular to the round holes are formed in the side faces of the compression blocks, the bolt sleeve block is placed in the groove bodies, the mounting plate is fixedly connected to the groove bodies and used for fixing the bolt sleeve block, threaded holes matched with the compression bolts are formed in the bolt sleeve block, the compression bolts penetrate through the through holes and enter the round holes, and the compression bolts are screwed into the threaded holes to enable the left compression block and the right compression block to clamp samples transversely.
Further, the bolt sleeve block and the mounting plate are of an integrated structure.
Furthermore, the compression blocks which are opposite up and down are connected together through a guide post, the guide post is perpendicular to the contact surface of the compression blocks, and the compression blocks move relatively along the axial direction of the guide post.
Furthermore, the number of the guide posts is 4, and the number of the guide posts arranged between each pair of the upper and lower compression blocks is 2.
Furthermore, a positioning pin is arranged between the two compression blocks which are opposite to each other at the left and the right.
Furthermore, the number of the positioning pins is two, and the positioning pins are distributed on the compression block in a diagonal manner.
Furthermore, a circular arc-shaped groove for installing an extensometer is formed in the position, where the sample is clamped, of the compression block.
Compared with the prior art, the utility model provides a combined material compression performance test is with anchor clamps through set up detachable bolt cover piece in the compression piece, has reduced use cost, has avoided leading to the fact smooth silk in the compression piece because clamp bolt twists many times to need the very high compression piece of replacement cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Reference numerals: the device comprises a compression block 1, a compression bolt 2, a bolt sleeve block 3, a mounting plate 4, a guide post 5, a positioning pin 6, a through hole 11, a round hole 12 and a groove body 13.
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 clamp for testing the compression performance of the composite material shown in fig. 1 comprises: the device comprises four compression blocks 1, compression bolts 2, bolt sleeve blocks 3 and a mounting plate 4; the compression blocks 1 are distributed in axial symmetry, the two compression blocks 1 at the upper part and the lower part of the same side are provided with through holes 11 vertical to the contact surface of a sample, the two compression blocks 1 at the opposite side are provided with round holes 12 along the axial extension direction of the through holes 11, the side surface of the compression block 1 is provided with a groove body 13 vertical to the round holes 12, a bolt sleeve block 3 is arranged in the groove body 13, a mounting plate 4 is fixedly connected on the groove body 13 and is used for fixing the bolt sleeve block 3, a threaded hole matched with a compression bolt 2 is arranged in the bolt sleeve block 3, the compression bolt 2 passes through the through holes 11 and enters the round holes 12, the compression bolt 2 is screwed into the threaded hole to enable the left compression block 1 and the right compression block 1 opposite to transversely clamp the sample, compared with the prior art that the threaded hole matched with the compression bolt is directly arranged on the compression blocks, even if the thread slipping phenomenon occurs, the cost can be reduced by replacing the bolt sleeve block 3.
Preferably, the bolt sleeve block 3 and the mounting plate 4 are of an integral structure.
In order to ensure that the upper compression block 1 and the lower compression block 1 do not move vertically and do not deviate, the measured compression strength is more accurate, the upper compression block 1 and the lower compression block 1 are connected together through the guide post 5, the guide post 5 is perpendicular to the contact surfaces of the upper compression block 1 and the lower compression block 1, and the upper compression block 1 and the lower compression block 1 move relatively along the axis direction of the guide post 5.
As a preference of the above embodiment, the number of the guide posts 5 is 4, and the number of the guide posts 5 provided between each pair of the upper and lower two compression blocks 1 is 2.
In order to ensure that the left and right compression blocks 1 do not deviate when being clamped transversely, a positioning pin 6 is arranged between the left and right opposite compression blocks 1.
As a preference of the above embodiment, the number of the positioning pins 6 is 4, and the positioning pins 6 are diagonally distributed on the compression block 1.
In order to install the extensometer in the clamp, the part of the compression block 1, which clamps the sample, is provided with a circular arc-shaped groove for installing the extensometer.
It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a clamp for testing compression performance of composite materials, which is characterized in that includes: the device comprises four compression blocks (1), compression bolts (2), bolt sleeve blocks (3) and a mounting plate (4); the compression blocks (1) are distributed in axial symmetry, the two compression blocks (1) which are arranged up and down on the same side are provided with through holes (11) vertical to the contact surface of the sample, round holes (12) along the axial extension direction of the through hole (11) are formed on the two opposite compression blocks (1), a groove body (13) vertical to the round hole (12) is arranged on the side surface of the compression block (1), the bolt sleeve block (3) is arranged in the groove body (13), the mounting plate (4) is fixedly connected on the groove body (13) and is used for fixing the bolt sleeve block (3), a threaded hole matched with the compression bolt (2) is arranged in the bolt sleeve block (3), the compression bolt (2) passes through the through hole (11) and enters the round hole (12), the compression bolt (2) is screwed into the threaded hole, so that the left compression block (1) and the right compression block (1) which are opposite transversely clamp a sample.
2. The clamp for testing the compression performance of the composite material as claimed in claim 1, wherein the bolt sleeve block (3) and the mounting plate (4) are of an integral structure.
3. The clamp for testing the compression performance of the composite material as claimed in claim 1, wherein the compression blocks (1) which are opposite up and down are connected together through a guide column (5), the guide column (5) is perpendicular to the contact surface of the two compression blocks (1), and the two compression blocks (1) are relatively moved along the axial direction of the guide column (5).
4. The clamp for testing the compression performance of the composite material as claimed in claim 3, wherein the number of the guide posts (5) is 4, and the number of the guide posts (5) arranged between each pair of the upper and lower compression blocks (1) is 2.
5. The clamp for testing the compression performance of the composite material as claimed in claim 1, wherein a positioning pin (6) is arranged between two compression blocks (1) which are opposite to each other at left and right.
6. The clamp for testing the compression performance of the composite material as claimed in claim 5, wherein the number of the positioning pins (6) is 4, and the positioning pins (6) are distributed on the compression block (1) in a diagonal manner.
7. The clamp for testing the compression performance of the composite material as claimed in claim 1, wherein a circular arc-shaped groove for installing an extensometer is formed at a position where the compression block (1) clamps the sample.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021732464.9U CN212904248U (en) | 2020-08-18 | 2020-08-18 | Clamp for testing compression performance of composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021732464.9U CN212904248U (en) | 2020-08-18 | 2020-08-18 | Clamp for testing compression performance of composite material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212904248U true CN212904248U (en) | 2021-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021732464.9U Active CN212904248U (en) | 2020-08-18 | 2020-08-18 | Clamp for testing compression performance of composite material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212904248U (en) |
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2020
- 2020-08-18 CN CN202021732464.9U patent/CN212904248U/en active Active
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