CN212363886U - Positioning fixture for tensile shear test - Google Patents
Positioning fixture for tensile shear test Download PDFInfo
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- CN212363886U CN212363886U CN202021036361.9U CN202021036361U CN212363886U CN 212363886 U CN212363886 U CN 212363886U CN 202021036361 U CN202021036361 U CN 202021036361U CN 212363886 U CN212363886 U CN 212363886U
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Abstract
The utility model discloses a tensile shear test's positioning fixture relates to metal mechanics test technical field, has solved among the prior art because the test piece slides in anchor clamps easily and leads to the test piece to cut the technical problem that the position changes. The fixture comprises a first fixture body and a second fixture body, wherein the first fixture body is provided with a first mounting hole, the second fixture body is provided with a second mounting hole, the first fixture body is attached to the second fixture body, the first mounting hole is communicated with the second mounting hole to form a through hole for mounting a test piece, and a positioning assembly for fixing the test piece in the through hole is arranged on the first fixture body and/or the second fixture body. The utility model discloses a locating component who sets up on first anchor clamps body and/or second anchor clamps body makes the test piece along the axial positioning in the through-hole that first mounting hole and second mounting hole formed, has effectively avoided the endwise slip of test piece, has guaranteed that the shearing force is applyed the accuracy at test piece effect position to the accuracy of test result has been guaranteed.
Description
Technical Field
The utility model relates to a metal mechanics tests technical field, particularly, indicates a tensile shear test's positioning fixture.
Background
The shear strength of the metal material is an important mechanical index for evaluating the shear resistance of the metal material. The tensile shear test is an important test method for testing the shear strength of a metal material, and the method generally comprises the steps of respectively clamping two axial ends of a test piece through two clamps, and then stretching the two clamps to generate radial shear force on the test piece, so that the shear strength of the test piece is measured. However, the test piece is easy to slide in the axial direction in the clamp, and particularly, in the process of applying a shearing force to the test piece, the shearing part is changed due to the sliding of the test piece, and finally, the test result is distorted.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at overcoming the not enough of prior art, providing a tensile shear test's positioning fixture to solve among the prior art because the test piece slides in anchor clamps easily and lead to the test piece to cut the technical problem that the position changes.
The utility model provides a technical scheme that this technical problem adopted is:
the utility model provides a tensile shear test's positioning fixture, is including the first anchor clamps body of seting up first mounting hole and the second anchor clamps body of seting up the second mounting hole, first anchor clamps body and the laminating of second anchor clamps body make first mounting hole and second mounting hole intercommunication form the through-hole of installation test piece, the binding face of first anchor clamps body and second anchor clamps body is located the axis of tensile testing machine tensile force, be provided with on first anchor clamps body and/or the second anchor clamps body and be used for fixing the locating component of test piece in the through-hole.
On the basis of the technical scheme, the positioning clamp for the tensile shear test can be further improved as follows.
Optionally, the aperture of the first mounting hole is not smaller than that of the second mounting hole, the positioning assembly comprises a positioning body movably connected with the second fixture body, a positioning hole corresponding to the through hole is formed in the positioning body, a positioning piece is movably connected in the positioning hole, and the positioning piece stretches into the through hole to fix the test piece.
Optionally, the positioning element is of a T-shaped structure, an elastic element is arranged between the positioning body and the positioning element, the positioning element is slidably connected with the positioning hole, and the elastic element enables the test piece to be compressed between the positioning element and the second fixture body.
Optionally, the positioning body is provided with a connecting hole, the second fixture body is provided with a threaded hole, and the positioning body is movably connected to the second fixture body through threaded connection of a bolt and the threaded hole.
Optionally, a guide hole is formed in the second fixture body, a guide rod is arranged on the positioning body, and the positioning body slides relative to the second fixture body through sliding connection between the guide rod and the guide hole.
Optionally, the positioning body is connected with the second fixture body to form a concave integral structure, the first fixture body is identical to the concave integral structure, and the side wall with the second mounting hole on the second fixture body is inserted into the groove of the first fixture body, so that the first fixture body and the second fixture body are tightly attached to each other.
Optionally, a first connecting bolt for connecting the upper end of the tensile testing machine is arranged on the first clamp body, a second connecting bolt for connecting the lower end of the tensile testing machine is arranged on the second clamp body, and the first connecting bolt, the second connecting bolt, the binding surface of the first clamp body and the binding surface of the second clamp body are all located on the axis of tensile force of the tensile testing machine.
Optionally, the cross-sectional shapes of the first mounting hole and the second mounting hole are centrosymmetric.
Optionally, a plurality of groups of first mounting holes are formed in the first fixture body, and a plurality of groups of second mounting holes are formed in the second fixture body.
Optionally, the first fixture body, the second fixture body and the positioning assembly are made of die steel, heat-resistant steel or alloy steel.
Compared with the prior art, the utility model provides a tensile shear test's positioning fixture has beneficial effect is:
the utility model discloses a locating component who sets up on first anchor clamps body and/or second anchor clamps body makes the test piece along the axial positioning in the through-hole that first mounting hole and second mounting hole formed, has effectively avoided the endwise slip of test piece, has guaranteed that the shearing force is applyed the accuracy at test piece effect position to the accuracy of test result has been guaranteed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a positioning jig for a tensile shear test according to the present invention;
FIG. 2 is a schematic structural view of the second clamp body of FIG. 1;
fig. 3 is a schematic structural view of the positioning body in fig. 1.
In the figure:
1-a first clamp body; 2-a second clamp body; 3-a first mounting hole; 4-a second mounting hole; 5, positioning the body; 6, positioning holes; 7-a positioning element; 8, an elastic member; 9-bolt; 10-a first connecting bolt; 11-a second connecting bolt; 12-a tensile testing machine; 13-a threaded hole; 14-a pilot hole; 15-guide rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are merely exemplary of the invention and are not intended to be exhaustive. Based on the embodiments of 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.
Example (b):
the utility model provides a tensile shear test's positioning fixture, as shown in fig. 1 to fig. 3, including first anchor clamps body 1 and second anchor clamps body 2, seted up first mounting hole 3 on the first anchor clamps body 1, seted up second mounting hole 4 on the second anchor clamps body 2. The first clamp body 1 is attached to the second clamp body 2, the first mounting hole 3 is communicated with the second mounting hole 4 to form a through hole, and the test piece is mounted in the through hole. The first clamp body 1 is provided with a first connecting bolt 10, and the second clamp body 2 is provided with a second connecting bolt 11. The first clamp body 1 is connected to the upper end of a tensile testing machine 12 through a first connecting bolt 10, and the second clamp body 2 is connected to the lower end of the tensile testing machine 12 through a second connecting bolt 11. The first connecting bolt 10, the second connecting bolt 11 and the binding surfaces of the first clamp body 1 and the second clamp body 2 are all located on the axis of the tensile force of the tensile testing machine 12.
As shown in fig. 1 to 3, the second fixture body 2 is an L-shaped structure, and a positioning assembly for fixing the position of the test piece is disposed on the second fixture body 2. Specifically, the locating component includes the location body 5 of cuboid shape, and location body 5 is concave structure with second anchor clamps body 2 swing joint. The positioning body 5 is provided with a positioning hole 6, the positioning hole 6 corresponds to the through hole, and a positioning part 7 with a T-shaped structure is connected in the positioning hole 6 in a sliding manner. Be provided with elastic component 8 between location body 5 and setting element 7, when the aperture of first mounting hole 3 is greater than the aperture of second mounting hole 4, when carrying out tensile shear test to trapezoidal test piece promptly, the test piece compresses tightly between setting element 7 and second anchor clamps body 2 under elastic component 8's elastic action to the realization is to the positioning action of test piece. The elastic member 8 includes, but is not limited to, a spring, a leaf spring, or an elastic rubber.
It is understood that the first mounting hole 3 has the same diameter as the second mounting hole 4 when a tensile shear test is performed on a specimen having a constant diameter. At this moment, the positioning bodies 5 with the same structure can be movably connected to the first clamp body 1, so that the test piece is pressed between the positioning pieces 7 at the two ends under the elastic action of the elastic pieces 8 at the two ends, and the positioning effect on the test piece can be realized. Of course, the positioning hole 6 can also be designed as a threaded hole, the positioning element 7 is set in the form of a threaded rod, and the positioning element 7 is connected with the positioning hole 6 through threads to realize the positioning effect on the test piece. In this case, the elastic member 8 may be omitted.
In particular, the cross-sectional shapes of the first mounting hole 3 and the second mounting hole 4 are each set to a centrosymmetric shape, such as a circular, rectangular, or triangular shape, depending on the shape of the test piece. A plurality of groups have been seted up on first anchor clamps body 1 to first mounting hole 3, and a plurality of groups have been seted up on second anchor clamps body 2 to second mounting hole 4. The apertures of the first mounting holes 3 are different, the apertures of the second mounting holes 4 are different, and the same group of first clamp bodies 1 and the same group of second clamp bodies 2 can be used for carrying out tensile shear tests on stepped test pieces and equal-diameter test pieces with different sizes. The first clamp body 1, the second clamp body 2 and the positioning assembly are made of die steel, heat-resistant steel or alloy steel. For example, the alloy is made of high temperature alloy K403, heat-resistant stainless steel and other steel materials.
As shown in fig. 1 to 3, a connecting hole is provided on the positioning body 5, a threaded hole 13 is provided on the second fixture body 2, and a bolt 9 is used to penetrate through the connecting hole and be in threaded connection with the threaded hole 13, so that the positioning body 5 is movably connected to the second fixture body 2, and the positioning body 5 and the second fixture body 2 are integrally in a concave structure. In particular, the second fixture body 2 is provided with guide holes 14 located at two sides of the threaded hole 13, the positioning body 5 is provided with a guide rod 15 opposite to the guide hole 14, and the positioning body 5 slides on the second fixture body 2 through the sliding connection of the guide rod 15 and the guide hole 14, so that the installation of the positioning body 5 can be facilitated.
It can be understood that the connection mode of the positioning body 5 and the second clamp body 2 is not limited to the above threaded connection mode, and various connection modes such as snap connection, mortise and tenon connection or insertion connection can also be adopted. Likewise, the first jig body 1 can also adopt the same structural manner.
As shown in fig. 1, when a tensile shear test is performed on a stepped test piece, since the first mounting hole 3 and the second mounting hole 4 have a difference in hole diameter, movement of one side of the test piece can be restricted, and therefore, a positioning component only needs to be provided on the other side of the stepped test piece. At this moment, the first clamp body 1 is of an inverted concave structure, and the side wall with the second mounting hole 4 on the second clamp body 2 is inserted into the groove of the first clamp body 1, so that the first clamp body 1 and the second clamp body 2 can be tightly attached to each other. When a tensile shear test is carried out on a test piece with the same diameter, because both sides of the test piece are not constrained, positioning assemblies are required to be arranged on both sides of the test piece with the same diameter respectively.
The utility model discloses a set up locating component on second anchor clamps body 2, make setting element 7 pass through the elastic action of elastic component 8 with the test piece along the axial positioning in the through-hole that first mounting hole 3 and second mounting hole 4 formed, effectively avoided the endwise slip of test piece, guaranteed that the shearing force is applyed the accuracy at test piece effect position to the accuracy of test result has been guaranteed. Of course, the positioning assembly is not limited to the structure of connecting the positioning body 5 to the second fixture body 2, and the positioning body 5 may be disposed on the first fixture body 1. The positioning component can also adopt a structural form of a buckle cover which is respectively and movably connected to the first mounting hole 3 and the second mounting hole 4, and a corresponding positioning part 7 and an elastic part 8 are arranged in the buckle cover, so that the axial positioning effect on the test piece can be realized.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention.
Claims (10)
1. The utility model provides a tensile shear test's positioning fixture, its characterized in that, including first anchor clamps body (1) of seting up first mounting hole (3) and second anchor clamps body (2) of seting up second mounting hole (4), first anchor clamps body (1) and the laminating of second anchor clamps body (2), make first mounting hole (3) and second mounting hole (4) intercommunication form the through-hole of installation test piece, the binding face of first anchor clamps body (1) and second anchor clamps body (2) is located tensile testing machine (12) tensile force's axis, be provided with on first anchor clamps body (1) and/or second anchor clamps body (2) and be used for fixing the locating component of test piece in the through-hole.
2. The positioning fixture for the tensile shear test according to claim 1, wherein the aperture of the first mounting hole (3) is not smaller than that of the second mounting hole (4), the positioning assembly comprises a positioning body (5) movably connected with the second fixture body (2), a positioning hole (6) corresponding to the position of the through hole is formed in the positioning body (5), a positioning piece (7) is movably connected in the positioning hole (6), and the positioning piece (7) extends into the through hole to fix the test piece.
3. The positioning fixture for the tensile shear test according to claim 2, wherein the positioning member (7) is a T-shaped structure, an elastic member (8) is disposed between the positioning body (5) and the positioning member (7), the positioning member (7) is slidably connected with the positioning hole (6), and the elastic member (8) enables the test piece to be pressed between the positioning member (7) and the second fixture body (2).
4. The positioning fixture for the tensile shear test according to claim 2, wherein the positioning body (5) is provided with a connecting hole, the second fixture body (2) is provided with a threaded hole (13), and the positioning body (5) is movably connected to the second fixture body (2) through the threaded connection between the bolt (9) and the threaded hole (13).
5. The positioning fixture for the tensile shear test according to claim 4, wherein a guide hole (14) is formed in the second fixture body (2), a guide rod (15) is formed in the positioning body (5), and the positioning body (5) slides relative to the second fixture body (2) through the sliding connection between the guide rod (15) and the guide hole (14).
6. The positioning fixture for the tensile shear test according to claim 2, wherein the positioning body (5) is connected with the second fixture body (2) to form a concave integral structure, the first fixture body (1) is identical to the concave integral structure, and the side wall of the second fixture body (2) with the second mounting hole (4) is inserted into the groove of the first fixture body (1) to enable the first fixture body (1) and the second fixture body (2) to be tightly attached to each other.
7. The positioning fixture for the tensile shear test according to any one of claims 1 to 6, wherein a first connecting bolt (10) for connecting to the upper end of the tensile testing machine (12) is arranged on the first fixture body (1), a second connecting bolt (11) for connecting to the lower end of the tensile testing machine (12) is arranged on the second fixture body (2), and the first connecting bolt (10), the second connecting bolt (11) and abutting surfaces of the first fixture body (1) and the second fixture body (2) are all located on the axis of the tensile force of the tensile testing machine (12).
8. The tensile shear test positioning jig of any one of claims 1 to 6, wherein the cross-sectional shapes of the first mounting hole (3) and the second mounting hole (4) are centrosymmetric shapes.
9. The positioning fixture for the tensile shear test according to any one of claims 1 to 6, wherein the first fixture body (1) is provided with a plurality of groups of first mounting holes (3), and the second fixture body (2) is provided with a plurality of groups of second mounting holes (4).
10. The positioning fixture for the tensile shear test according to any one of claims 1 to 6, wherein the first fixture body (1), the second fixture body (2) and the positioning assembly are made of die steel, heat-resistant steel or alloy steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021036361.9U CN212363886U (en) | 2020-06-08 | 2020-06-08 | Positioning fixture for tensile shear test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021036361.9U CN212363886U (en) | 2020-06-08 | 2020-06-08 | Positioning fixture for tensile shear test |
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| Publication Number | Publication Date |
|---|---|
| CN212363886U true CN212363886U (en) | 2021-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021036361.9U Active CN212363886U (en) | 2020-06-08 | 2020-06-08 | Positioning fixture for tensile shear test |
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| CN (1) | CN212363886U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116223248A (en) * | 2022-12-09 | 2023-06-06 | 中材科技风电叶片股份有限公司 | Tool and method for testing interfacial shear of blade root embedded metal sleeve and composite material |
-
2020
- 2020-06-08 CN CN202021036361.9U patent/CN212363886U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116223248A (en) * | 2022-12-09 | 2023-06-06 | 中材科技风电叶片股份有限公司 | Tool and method for testing interfacial shear of blade root embedded metal sleeve and composite material |
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