CN215727278U - Clamp assembly and tensile test device - Google Patents
Clamp assembly and tensile test device Download PDFInfo
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- CN215727278U CN215727278U CN202121342486.9U CN202121342486U CN215727278U CN 215727278 U CN215727278 U CN 215727278U CN 202121342486 U CN202121342486 U CN 202121342486U CN 215727278 U CN215727278 U CN 215727278U
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Abstract
The application provides a fixture assembly, including first holder, second holder and locating component, first holder with the second holder sets up relatively, locating component can dismantle the connection first holder with the second holder. First holder orientation one side of second holder is equipped with first recess, second holder orientation one side of first holder is equipped with the correspondence the convex part of first recess, first recess with form the mounting groove between the convex part. The side wall of the first groove is provided with first friction grains, the side wall of the convex part is provided with second friction grains, and the first friction grains and the second friction grains are arranged oppositely to increase the friction force between the clamping piece and the workpiece, so that the workpiece is fully clamped, the accuracy of a tension test result is improved, and the problems of uneven stress, stress concentration and the like of the workpiece during the test are solved. The application also provides a tensile test device with the clamp assembly.
Description
Technical Field
The application relates to the technical field of clamping devices, in particular to a clamp assembly and a tensile test device with the clamp assembly.
Background
With the rapid development of offshore energy such as ocean development and offshore wind power generation, the application of submarine cables becomes more and more extensive, and in order to ensure the roundness of cable cores in the cabling process of submarine cables, workpieces such as forming filler strips are generally required to be adopted to fill gaps so as to ensure the roundness of cables after filling.
The filling strip for the submarine cable and other workpieces have the characteristics of large size, irregular shape and the like, and the tension force of the filling strip needs to be detected before the filling strip is used for ensuring the quality of the filling strip. However, due to the characteristics of the filler strip, the conventional flat or circular fixture used for fixing the filler strip cannot meet the test requirements, and is prone to problems of uneven stress, slippage and the like, thereby causing test failure or inaccurate test data, and failing to accurately judge whether the filler strip reaches the specified breaking force.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned situation, the application provides a clamp assembly and tensile test device who has this anchor clamps, through set up first recess and the convex part that matches with the work piece appearance between first holder and second holder, still further set up friction line on the lateral wall of first recess and convex part, increase frictional force between holder and the work piece, make the work piece by abundant centre gripping, improve the accuracy to the tensile test result, the work piece atress that appears when solving the experiment is inhomogeneous, stress concentration scheduling problem.
The embodiment of the application provides a clamp assembly, including first holder, second holder and locating component, first holder with the second holder sets up relatively, locating component can dismantle the connection first holder with the second holder. First holder orientation one side of second holder is equipped with first recess, second holder orientation one side of first holder is equipped with the correspondence the convex part of first recess, first recess with form the mounting groove between the convex part. The side wall of the first groove is provided with first friction grains, the side wall of the convex part is provided with second friction grains, and the first friction grains and the second friction grains are arranged oppositely.
In some embodiments, two protrusions are symmetrically arranged on one side of the second clamping piece facing the first clamping piece, a second groove is arranged between the two protrusions, and the side wall of the second groove is provided with the second friction line.
In some embodiments, in the first direction, a projection of the first groove on the first holder end face covers a projection of the protrusion and the second groove on the first holder end face.
In some embodiments, along the second direction, a plurality of first recesses are spaced apart from each other on the side wall of the first groove, a first protrusion is disposed between adjacent first recesses, and the plurality of first recesses and the plurality of first protrusions are alternately spaced apart from each other to form the first friction texture.
In some embodiments, the positioning assembly includes a connecting rod and an adjusting member, the connecting rod connects the first clamping member and the second clamping member, the adjusting member is detachably disposed at two ends of the connecting rod, and the adjusting member abuts against the first clamping member or the second clamping member, and the adjusting member is configured to limit movement of the first clamping member or the second clamping member along the connecting rod.
In some embodiments, the length of the connecting rod in the first direction is greater than or equal to 1.5 times the sum of the heights of the first and second clamps.
In some embodiments, the clamp assembly further includes a suspension rod, the first groove is further provided with a supporting portion therein, the supporting portion corresponds to the second groove, the suspension rod is connected to one end of the supporting portion facing the second clamping member along a second direction, and the second direction is perpendicular to the first direction.
In some embodiments, the end of the suspension rod is provided with a through hole for connecting an external device.
In some embodiments, the clamp assembly further comprises a suspension rod, a first end of the suspension rod is connected to a side of the second groove away from the first clamping piece, and a second end of the suspension rod protrudes out of a surface of the second clamping piece along the second direction.
The embodiment of the application further provides a tension test device, the tension test device comprises a force application assembly and the clamp assembly in the embodiment, and the force application assembly is in transmission connection with the clamp assembly.
The application provides a fixture assembly is through setting up first recess and the convex part that matches with the work piece appearance between first holder and second holder, still further sets up friction line on the lateral wall of first recess and convex part, increases frictional force between holder and the work piece, makes the work piece by abundant centre gripping, improves the accuracy to the tensile test result, and the work piece atress that appears when solving the experiment is inhomogeneous, stress concentration, the scheduling problem that slides.
Drawings
FIG. 1 is a schematic diagram of a clamp assembly in one embodiment.
Fig. 2 is a schematic view of the jig assembly shown in fig. 1 in another orientation.
FIG. 3 is a schematic diagram of a clamp assembly in one embodiment.
FIG. 4 is a schematic view of the clamp assembly of FIG. 3 in another orientation.
FIG. 5 is a schematic view of a tensile testing apparatus in one embodiment.
Description of the main element symbols:
| |
100 |
| |
10 |
| The |
11 |
| First friction line | 12 |
| A |
13 |
| Abutting part | 14 |
| A first concave part | 121 |
| First projecting part | 122 |
| |
20 |
| Convex |
21 |
| |
22 |
| |
23 |
| |
24 |
| Second |
231 |
| Second projecting |
232 |
| |
30 |
| Connecting |
31 |
| Adjusting |
32 |
| |
101 |
| |
40 |
| First end | 41 |
| Second end | 42 |
| Through |
43 |
| |
200 |
| |
201 |
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.
The application provides a fixture assembly, including first holder, second holder and locating component, first holder with the second holder sets up relatively, locating component can dismantle the connection first holder with the second holder. First holder orientation one side of second holder is equipped with first recess, second holder orientation one side of first holder is equipped with the correspondence the convex part of first recess, first recess with form the mounting groove between the convex part. The side wall of the first groove is provided with first friction grains, the side wall of the convex part is provided with second friction grains, and the first friction grains and the second friction grains are arranged oppositely.
Above-mentioned anchor clamps subassembly still further sets up friction line through setting up first recess and convex part that matches with the work piece appearance between first holder and second holder, increases frictional force between holder and the work piece, makes the work piece by abundant centre gripping, improves the accuracy to the tensile test result, and the work piece atress that appears when solving the experiment is inhomogeneous, stress concentration, the scheduling problem that slides.
Some embodiments of the present application are described in detail. In the following embodiments, features of the embodiments may be combined with each other without conflict.
Referring to fig. 1 and 2, in the first embodiment, a clamping assembly 100 includes a first clamping member 10, a second clamping member 20, and a positioning assembly 30. The first clamping piece 10 and the second clamping piece 20 are arranged oppositely, and the positioning assembly 30 is detachably connected with the first clamping piece 10 and the second clamping piece 20.
Specifically, a first groove 11 is provided on a side of the first clamping member 10 facing the second clamping member 20. In the embodiment of the present application, the side wall of the first groove 11 is a substantially arc surface, and in other embodiments, the side wall of the first groove 11 may have other shapes to meet design requirements, and the present application is not limited thereto. The second clamping member 20 is provided with a protrusion 21 corresponding to the first groove 11 on the side facing the first clamping member 10. In the embodiment of the present application, two of the protrusions 21 are symmetrically disposed on one side of the second clamping member 20 facing the first clamping member 10, and a second groove 22 is disposed between the two protrusions 21. In a first direction, which is indicated by arrow a in fig. 2, the projection of the first groove 11 on the end face of the first clamping member 10 covers the projection 21 and the projection of the second groove 22 on the end face of the first clamping member 10.
When the first clamping piece 10 and the second clamping piece 20 are arranged oppositely, a mounting groove 101 is formed among the first groove 11, the convex part 21 and the second groove 22, a workpiece to be tested (not shown) is arranged in the mounting groove 101, and the first clamping piece 10 and the second clamping piece 20 jointly extrude the workpiece, so that the side wall of the first groove 11, the surface of the convex part 21 and the side wall of the second groove 22 are abutted against the surface of the workpiece, and the clamping and positioning of the workpiece are realized. The shape of the workpiece matches the shape of the mounting groove 101.
Further, a first friction grain 12 is arranged on the side wall of the first groove 11, a second friction grain 23 is arranged on the side wall of the convex portion 21 and/or the second groove 22, and the first friction grain 12 and the second friction grain 23 are arranged oppositely and used for increasing the friction force between the workpiece and the first clamping piece 10 and the second clamping piece 20 and preventing the workpiece from accidentally falling off or slipping. Specifically, in the second direction, i.e., the direction indicated by arrow B in fig. 1, a plurality of first recesses 121 are spaced apart from each other on the side wall of the first groove 11, a first protrusion 122 is disposed between adjacent first recesses 121, and a plurality of first recesses 121 and a plurality of first protrusions 122 are alternately spaced apart from each other to form the first friction texture 12. The second direction is perpendicular to the first direction. A plurality of second concave parts 231 are arranged on the side wall of the convex part 21 and/or the second groove 22 at intervals, and a second convex part 232 is arranged between the adjacent second concave parts 231. The second concave parts 231 and the second convex parts 232 are alternately arranged to form the second friction lines 23.
Further, the first clamping member 10 further includes a first limiting surface 13. In a third direction, which is the direction indicated by an arrow C in fig. 1, the first limiting surfaces 13 are distributed on two sides of the first groove 11. The first direction, the second direction and the third direction are perpendicular to each other. The second clamping member 20 further includes a second limiting surface 24, and the first limiting surface 13 corresponds to and is opposite to the second limiting surface 24 along the first direction. When the first limiting surface 13 abuts against the second limiting surface 24, the first clamping member 10 and the second clamping member 20 are attached to each other, and the distance between the first clamping member and the second clamping member reaches the minimum value.
The positioning assembly 30 includes a connecting rod 31 and an adjusting member 32, wherein the connecting rod 31 connects the first clamping member 10 and the second clamping member 20. Specifically, two sides of the first clamping member 10 are provided with first through holes extending along a first direction, two sides of the second clamping member 20 are provided with second through holes corresponding to the first through holes, and the two connecting rods 31 penetrate through the first through holes and the second through holes respectively to connect the first clamping member 10 and the second clamping member 20. The adjusting members 32 are detachably disposed at two ends of the connecting rod 31, and the adjusting members 32 abut against the first clamping member 10 or the second clamping member 20 to limit the first clamping member 10 or the second clamping member 20 to move along the connecting rod 31, so as to position the first clamping member 10 or the second clamping member 20 in the first direction.
The adjusting piece 32 is in threaded connection with the connecting rod 31, so that the adjusting piece 32 moves relative to the connecting rod 31, the distance between the first clamping piece 10 and the second clamping piece 20 is adjusted, the first clamping piece 10 and the second clamping piece 20 are fully attached to a workpiece, the clamping force applied to the workpiece is changed, and the workpiece is clamped and loosened in the clamp assembly 100. In the embodiment of the present application, the adjusting member 32 includes, but is not limited to, a nut or the like. In the first direction, the length of the connecting rod 31 is greater than or equal to 1.5 times the sum of the heights of the first clamping member 10 and the second clamping member 20.
Further, referring to fig. 1 and 2 again, the clamp assembly 100 further includes a hanging rod 40, the hanging rod 40 is connected to the first clamping member 10 along the second direction, and the hanging rod 40 is located at the middle of the first clamping member 10. Specifically, a holding portion 14 is further disposed in the first groove 11, and the holding portion 14 is approximately located in the middle of the first clamping member 10 and corresponds to the second groove 22. The shape of the abutting part 14 is matched with the shape of a corresponding groove on the workpiece. The first end 41 of the suspension rod 40 is connected with one end of the abutting portion 14 facing the second clamping member 20, the second end 42 of the suspension rod 40 is provided with a through hole 43 along the radial direction, and the through hole 43 is used for connecting the suspension rod 40 with external equipment, so that the installation and the positioning of the clamp assembly 100 are realized.
Referring to fig. 3 and 4, in the second embodiment, the structure of the fixture assembly 100 is substantially the same as that of the previous embodiment, except that the mounting groove 101 of the second embodiment is shaped differently from that of the first embodiment to accommodate workpieces of different shapes and sizes. In the second embodiment, the side wall of the first groove 11 is substantially fan-shaped, and the abutting portion 14 is not disposed in the first groove 11. A hanger bar 40 is attached to the second clamping member 20. Specifically, the suspension rod 40 is located approximately in the middle of the second clamping member 20, a first end 41 of the suspension rod 40 is connected to a side of the second groove 22 away from the first clamping member 10, a second end 42 of the suspension rod 40 protrudes out of the surface of the second clamping member 20 in the second direction, and the second end 42 is provided with a through hole 43 for connecting an external device.
Referring to fig. 5, an embodiment of the present application further provides a tensile testing apparatus 200, where the tensile testing apparatus 200 includes a force application assembly 201 and the fixture assembly 100 described in the foregoing embodiment, and the force application assembly 201 is in transmission connection with the fixture assembly 100.
The clamp assembly 100 of the application enables a workpiece to be sufficiently clamped by arranging the first groove 11, the convex part 21 and the second groove 22 which are matched with the appearance of the workpiece between the first clamping piece 10 and the second clamping piece 20, improves the accuracy of a tension test result, and solves the problems that the stress of the workpiece is uneven and stress is concentrated when the test is carried out. The first groove 11, the convex part 21 and the second groove 22 are further provided with friction lines, so that the friction force between the clamping piece and the workpiece is improved, and the problem that the workpiece falls off is reduced.
Although the present application has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the present application.
Claims (10)
1. A clamp assembly comprises a first clamping piece, a second clamping piece and a positioning assembly, wherein the first clamping piece and the second clamping piece are arranged oppositely, and the positioning assembly is detachably connected with the first clamping piece and the second clamping piece;
the clamping device is characterized in that a first groove is formed in one side, facing the second clamping piece, of the first clamping piece, a convex part corresponding to the first groove is formed in one side, facing the first clamping piece, of the second clamping piece, and a mounting groove is formed between the first groove and the convex part;
the side wall of the first groove is provided with first friction grains, the side wall of the convex part is provided with second friction grains, and the first friction grains and the second friction grains are arranged oppositely.
2. The clamp assembly of claim 1, wherein two of said protrusions are symmetrically disposed on a side of said second clamping member facing said first clamping member, and a second groove is disposed between said two protrusions, and a sidewall of said second groove is provided with said second friction texture.
3. The gripper assembly of claim 2 wherein, in a first orientation, a projection of said first recess onto said first gripper end surface overlaps a projection of said protrusion and said second recess onto said first gripper end surface.
4. The holder assembly of claim 1, wherein along the second direction, a plurality of first recesses are spaced apart from each other along a sidewall of the first recess, a first protrusion is disposed between adjacent first recesses, and the plurality of first recesses and the plurality of first protrusions are alternately spaced apart to form the first friction texture.
5. The clamp assembly of claim 1, wherein the positioning assembly comprises a connecting rod and an adjusting member, the connecting rod connects the first clamping member and the second clamping member, the adjusting member is detachably disposed at two ends of the connecting rod, the adjusting member abuts against the first clamping member or the second clamping member, and the adjusting member is used for limiting the movement of the first clamping member or the second clamping member along the connecting rod.
6. The clamp assembly of claim 5, wherein the length of the connecting rod in the first direction is greater than or equal to 1.5 times the sum of the heights of the first and second clamping members.
7. The clamp assembly of claim 3, further comprising a hanging rod, wherein the first groove further has a supporting portion therein, the supporting portion corresponds to the second groove, the hanging rod is connected to an end of the supporting portion facing the second clamping member along a second direction, and the second direction is perpendicular to the first direction.
8. The clamp assembly of claim 7, wherein the end of the hanger bar is provided with a through hole for connection to an external device.
9. The gripper assembly of claim 2 further comprising a hanger bar, a first end of said hanger bar being connected to a side of said second recess remote from said first gripping member, a second end of said hanger bar projecting out of a surface of said second gripping member in a second direction.
10. A tensile testing apparatus comprising a force applying assembly and a clamp assembly as claimed in any one of claims 1 to 9, said force applying assembly being drivingly connected to said clamp assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121342486.9U CN215727278U (en) | 2021-06-17 | 2021-06-17 | Clamp assembly and tensile test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121342486.9U CN215727278U (en) | 2021-06-17 | 2021-06-17 | Clamp assembly and tensile test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215727278U true CN215727278U (en) | 2022-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121342486.9U Active CN215727278U (en) | 2021-06-17 | 2021-06-17 | Clamp assembly and tensile test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215727278U (en) |
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2021
- 2021-06-17 CN CN202121342486.9U patent/CN215727278U/en active Active
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