CN219265899U - Clamping device for bolt real object tensile test - Google Patents
Clamping device for bolt real object tensile test Download PDFInfo
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- CN219265899U CN219265899U CN202222898824.8U CN202222898824U CN219265899U CN 219265899 U CN219265899 U CN 219265899U CN 202222898824 U CN202222898824 U CN 202222898824U CN 219265899 U CN219265899 U CN 219265899U
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Abstract
The utility model discloses a clamping device for bolt real object tensile test, which comprises: the upper testing machine connecting piece and the lower testing machine connecting piece are respectively connected with the upper stretching end and the lower stretching end of the testing machine in a matching way; the upper stretching clamp and the lower stretching clamp are respectively correspondingly and adaptively arranged on the upper testing machine connecting piece and the lower testing machine connecting piece; the head of the bolt is clamped on the upper stretching clamp, and the screw rod part of the bolt is clamped on the lower stretching clamp through the nut. The utility model can solve the problems that the abrasion of the V-shaped groove is easy to slip and the precision of the test result is affected when the self-contained clamping device of the conventional universal material testing machine is used for a long time, and the clamping of straight bar materials, bolts, screws and other sample pieces can not be realized.
Description
Technical Field
The utility model relates to the technical field of tensile test equipment, in particular to a clamping device for a bolt real object tensile test.
Background
At present, a clamping device of a universal material testing machine only has V-shaped groove jaws, and firstly, the V-shaped groove is easy to slip after being worn for a long time, so that the accuracy of a test result is affected; secondly, the straight bar is used as a main material, clamping of samples with special structures is not considered, and the samples such as bolts and screws cannot be clamped.
Disclosure of Invention
Aiming at the technical problems, the utility model provides a clamping device for a bolt real object tensile test.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
clamping device for bolt material object tensile test includes:
the upper testing machine connecting piece and the lower testing machine connecting piece are respectively connected with the upper stretching end and the lower stretching end of the testing machine in a matching way;
the upper stretching clamp and the lower stretching clamp are respectively correspondingly and adaptively arranged on the upper testing machine connecting piece and the lower testing machine connecting piece;
the head of the bolt is clamped on the upper stretching clamp, and the screw rod part of the bolt is clamped on the lower stretching clamp through the nut.
The head of the bolt is clamped on the upper stretching clamp through the adjusting gasket.
The nut is of a cylindrical structure with an outer contour capable of being matched with the inner wall of the lower stretching clamp.
The upper stretching clamp is identical with the lower stretching clamp in structure, one end of the upper stretching clamp is a fitting part, the fitting part is matched with and installed on an upper testing machine connecting piece, the other end of the upper stretching clamp is a connecting body, the inside of the connecting body is of a cavity structure, the cavity structure is used for accommodating the head of a bolt, the side wall and the bottom of the cavity structure are both provided with openings, the side wall openings are used for conveniently placing the head of the bolt, and the bottom openings are used for placing the screw rod of the bolt and are used for clamping the screw rod.
The upper testing machine connecting piece is an upper dovetail clamp body, the lower testing machine connecting piece is a lower dovetail clamp body, and the upper dovetail clamp body and the lower dovetail clamp body have the same structure;
the upper dovetail clamp body comprises: the inner wall is cavity structure after the left half body and the right half body are mutually combined, and the cavity structure is used for being clamped with the assembly part.
The upper testing machine connecting piece is an upper dovetail V-shaped toothed clamp body, the lower testing machine connecting piece is a lower dovetail V-shaped toothed clamp body, and the upper dovetail V-shaped toothed clamp body and the lower dovetail V-shaped toothed clamp body have the same structure;
the upper dovetail V-shaped toothed clamp body comprises: the left half V-shaped toothed body and the right half V-shaped toothed body are respectively provided with a dovetail-shaped bulge which can be mutually clamped with the tensile end of the testing machine, the inner walls of the left half V-shaped toothed body and the right half V-shaped toothed body are respectively provided with a long groove with a V-shaped section, the inner walls of the long grooves are provided with transverse teeth from top to bottom, and after the left half V-shaped toothed body and the right half V-shaped toothed body are mutually combined, a hole-shaped structure with a diamond-shaped section is formed, and the assembly part is of a columnar structure and is clamped in the hole-shaped structure of the diamond.
The upper testing machine connecting piece is an upper dovetail V-shaped clamp body, the lower testing machine connecting piece is a lower dovetail V-shaped clamp body, the upper dovetail V-shaped clamp body and the lower dovetail V-shaped clamp body are identical in structure, an upper locking piece is arranged at the top of the upper dovetail V-shaped clamp body, a lower locking piece is arranged at the bottom of the lower dovetail V-shaped clamp body, and the upper locking piece and the lower locking piece are identical in structure;
the upper dovetail V-shaped clamp body comprises: the left half V-shaped plate body and the right half V-shaped plate body are respectively provided with dovetail-shaped bulges which can be mutually clamped with the tensile end of the testing machine on the outer walls of the left half V-shaped plate body and the right half V-shaped plate body, long grooves with V-shaped sections are respectively arranged on the inner walls of the left half V-shaped plate body and the right half V-shaped plate body, a hole-shaped structure with a diamond-shaped section is formed after the left half V-shaped plate body and the right half V-shaped plate body are mutually combined, the assembly part is of a columnar structure with external threads at the top and is clamped in the hole-shaped structure with the diamond-shaped section, and the upper locking piece is matched and installed on the external threads of the assembly part.
The upper locking piece and the lower locking piece are both internally threaded cushion blocks.
The beneficial effects of the utility model are as follows: according to the utility model, the upper tensile fixture and the lower tensile fixture are respectively and correspondingly arranged on the upper tensile fixture and the lower tensile fixture through the upper tensile fixture connecting piece and the lower tensile fixture connecting piece which are respectively connected with the upper tensile end and the lower tensile end of the tester in a matched manner, the head part of the bolt is clamped on the upper tensile fixture, the screw rod part of the bolt is clamped on the lower tensile fixture through the nut, the universal material tester is started, the tensile test on a workpiece is realized, the problem that the workpiece is directly connected with the clamping device of the universal material tester, and the multi-tooth V-shaped groove in the jaw of the clamping device is worn to generate slipping is effectively avoided, meanwhile, through the utility model, samples such as bolts, screws and the like can be connected with the universal material tester, the application range is expanded, the problem of clamping of external threaded fasteners such as bolts, screws and the like is solved, and as a preferable technical scheme, the upper tensile fixture connecting piece and the lower tester connecting piece with three different structures are provided, so that the installation stability of the upper tensile fixture and the lower tensile fixture is improved, and the slipping problem in the tensile process is avoided. The utility model has the advantages of convenient card installation, long durability and high efficiency, and improves the precision of test results. The utility model has the advantages of simple structure, lower manufacturing cost, convenient inspection operation and higher card loading efficiency.
Drawings
Fig. 1 is a schematic structural view of embodiment 1 of the present utility model.
Fig. 2 is a schematic structural view of embodiment 2 of the present utility model.
Fig. 3 is a schematic structural view of embodiment 3 of the present utility model.
Fig. 4 is a schematic structural view of the upper dovetail clamp body of example 1.
Fig. 5 is a schematic structural view of the upper stretching clamp of example 1.
Fig. 6 is a perspective view of the left half V-shaped toothed body of the upper dovetail V-shaped toothed clamp body of example 2.
Fig. 7 is a front view of the left half V-shaped toothed body of the upper dovetail V-shaped toothed clamp body of example 2.
Fig. 8 is a perspective view of the left half V-plate of the upper dovetail V-clamp of example 3.
Fig. 9 is a front view of the left half V-plate of the upper dovetail V-clamp of example 3.
Detailed Description
The objects, technical solutions and advantages of the present utility model will become more apparent by the following detailed description of the present utility model with reference to the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the utility model. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present utility model.
Example 1
As shown in fig. 1, a clamping device for bolt real object tensile test includes: the upper testing machine connecting piece and the lower testing machine connecting piece are respectively connected with the upper stretching end and the lower stretching end of the testing machine in a matching way; the upper stretching clamp 3 and the lower stretching clamp 6 are respectively correspondingly and adaptively arranged on an upper testing machine connecting piece and a lower testing machine connecting piece; wherein the head of the bolt 2 is clamped on the upper stretching clamp 3, and the screw part of the bolt 2 is clamped on the lower stretching clamp 6 through the nut 5.
As shown in fig. 1, the head of the bolt 2 is clamped on the upper stretching clamp 3 through the adjusting washer 4.
As shown in fig. 1, the nut 5 has a cylindrical structure with an outer contour that can be fitted to the inner wall of the lower stretching clamp 6.
As shown in fig. 1 and 5, the structure of the upper stretching clamp 3 is the same as that of the lower stretching clamp 6, one end of the upper stretching clamp 3 is a fitting, the fitting is matched and installed on the upper testing machine connecting piece, the other end is a connecting body, the inside of the connecting body is of a cavity structure, the cavity structure is used for accommodating the head of the bolt 2, the side wall and the bottom of the cavity structure are both provided with openings, the side wall opening is used for conveniently placing the head of the bolt 2, and the bottom opening is used for placing the screw rod part of the bolt 2 and is in clamping connection with the screw rod part.
As shown in fig. 1, the upper testing machine connector is an upper dovetail clamp body 1, the lower testing machine connector is a lower dovetail clamp body 7, and the upper dovetail clamp body 1 and the lower dovetail clamp body 7 have the same structure.
As shown in fig. 1 and 4, the upper dovetail clamp body 1 includes: the outer walls of the left half body 1-1 and the right half body 1-2 are respectively provided with dovetail-shaped bulges which can be mutually clamped with the tensile end of the tester, and the inner wall of the left half body 1-1 and the right half body 1-2 is of a cavity structure after being mutually combined, and the cavity structure is used for being clamped with the assembly part.
When the device is used, the multi-tooth V-shaped groove in the jaw of the upper dovetail groove of the clamping device of the universal material testing machine is changed into a single square groove, the device is used for installing the upper dovetail clamp body 1 and the lower dovetail clamp body 7 of the device, the left half body 1-1 and the right half body 1-2 of the upper dovetail clamp body 1 are combined to clamp the head assembly part of the upper stretching clamp 3, the left half body and the right half body of the lower dovetail clamp body 7 are combined to clamp the head assembly part of the lower stretching clamp 6, the adjusting gasket 4 is installed on the bolt 2, the head of the bolt 2 and the adjusting gasket 4 are clamped on the upper stretching clamp 3 through the side wall opening of the upper stretching clamp 3, the screw rod part of the bolt 2 is provided with the nut 5, the nut 5 is clamped on the lower stretching clamp 6 through the side wall opening of the lower stretching clamp 6, the upper dovetail clamp body 1 and the lower dovetail clamp body 7 are respectively arranged on the upper stretching end and the lower stretching end of the testing machine, and the testing machine is started for stretching test.
Example 2
As shown in fig. 2, the upper testing machine connecting piece is an upper dovetail V-shaped toothed clamp body 8, the lower testing machine connecting piece is a lower dovetail V-shaped toothed clamp body 9, and the upper dovetail V-shaped toothed clamp body 8 and the lower dovetail V-shaped toothed clamp body 9 have the same structure.
As shown in fig. 6 and 7, the upper dovetail V-shaped toothed clamp body 8 includes: the left half V-shaped toothed body and the right half V-shaped toothed body are respectively provided with a dovetail-shaped bulge which can be mutually clamped with the tensile end of the testing machine, the inner walls of the left half V-shaped toothed body and the right half V-shaped toothed body are respectively provided with a long groove with a V-shaped section, the inner walls of the long grooves are provided with transverse teeth from top to bottom, and after the left half V-shaped toothed body and the right half V-shaped toothed body are mutually combined, a hole-shaped structure with a diamond-shaped section is formed, and the assembly part is of a columnar structure and is clamped in the hole-shaped structure of the diamond.
When the upper dovetail V-shaped toothed clamp is used, the left half V-shaped toothed body and the right half V-shaped toothed body of the upper dovetail V-shaped toothed clamp body 8 are combined to clamp the head assembly of the upper stretching clamp 3, and the left half V-shaped toothed body and the right half V-shaped toothed body of the lower dovetail V-shaped toothed clamp body 9 are combined to clamp the head assembly of the lower stretching clamp 6.
Other structures are the same as the use method and embodiment 1.
Example 3
As shown in fig. 3, the upper testing machine connector is an upper dovetail V-shaped clamp body 11, the lower testing machine connector is a lower dovetail V-shaped clamp body 12, the upper dovetail V-shaped clamp body 11 and the lower dovetail V-shaped clamp body 12 have the same structure, the top of the upper dovetail V-shaped clamp body 11 is provided with an upper locking piece 10, the bottom of the lower dovetail V-shaped clamp body 12 is provided with a lower locking piece 13, and the upper locking piece 10 and the lower locking piece 13 have the same structure.
As shown in fig. 8 and 9, the upper dovetail V-clamp body 11 includes: the left half V-shaped plate body and the right half V-shaped plate body are respectively provided with dovetail-shaped bulges which can be mutually clamped with the tensile end of the testing machine on the outer walls of the left half V-shaped plate body and the right half V-shaped plate body, long grooves with V-shaped sections are respectively arranged on the inner walls of the left half V-shaped plate body and the right half V-shaped plate body, a hole-shaped structure with a diamond-shaped section is formed after the left half V-shaped plate body and the right half V-shaped plate body are mutually combined, the assembly part is of a columnar structure with external threads at the top and is clamped in the hole-shaped structure with the diamond-shaped section, and the upper locking piece 10 is matched and installed on the external threads of the assembly part.
As shown in fig. 3, the upper locking member 10 and the lower locking member 13 are both internally threaded spacers.
When the clamping fixture is used, the left half V-shaped plate body and the right half V-shaped plate body of the upper dovetail V-shaped clamp body 11 are combined to clamp the head assembly part of the upper stretching fixture 3, the left half V-shaped plate body and the right half V-shaped plate body of the lower dovetail V-shaped clamp body 12 are combined to clamp the head assembly part of the lower stretching fixture 6, then the upper locking piece 10 and the lower locking piece 13 are respectively arranged on the external threads at the top of the assembly part of the upper stretching fixture 3 and the external threads at the top of the assembly part of the lower stretching fixture 6, the left half V-shaped plate body and the right half V-shaped plate body are stably clamped, and the upper locking piece 10 and the lower locking piece 13 are locked, so that the clamping fixture can be stably clamped, and slipping does not occur when a tensile test is performed by a testing machine.
Other structures are the same as the use method and embodiment 1.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
Claims (8)
1. Clamping device for bolt material object tensile test, characterized by comprising:
the upper testing machine connecting piece and the lower testing machine connecting piece are respectively connected with the upper stretching end and the lower stretching end of the testing machine in a matching way;
the upper stretching clamp (3) and the lower stretching clamp (6) are respectively correspondingly and adaptively arranged on the upper testing machine connecting piece and the lower testing machine connecting piece;
the head of the bolt (2) is clamped on the upper stretching clamp (3), and the screw rod part of the bolt (2) is clamped on the lower stretching clamp (6) through the nut (5).
2. The clamping device for bolt physical tensile test of claim 1, wherein: the head of the bolt (2) is clamped on the upper stretching clamp (3) through the adjusting gasket (4).
3. The clamping device for bolt physical tensile test of claim 1, wherein: the nut (5) is of a cylindrical structure, and the outer contour of the cylindrical structure can be matched with the inner wall of the lower stretching clamp (6).
4. The clamping device for bolt physical tensile test of claim 1, wherein: the upper stretching clamp (3) and the lower stretching clamp (6) are identical in structure, one end of the upper stretching clamp (3) is a fitting part, the fitting part is matched and installed on an upper testing machine connecting piece, the other end of the upper stretching clamp is a connecting body, the inside of the connecting body is of a cavity structure, the cavity structure is used for accommodating the head of a bolt (2), the side wall and the bottom of the cavity structure are both provided with openings, the side wall openings are used for conveniently placing the head of the bolt (2), and the bottom openings are used for placing the screw rod part of the bolt (2) and are connected in a clamping mode.
5. The clamping device for bolt physical tensile test of claim 4, wherein: the upper testing machine connecting piece is an upper dovetail clamp body (1), the lower testing machine connecting piece is a lower dovetail clamp body (7), and the upper dovetail clamp body (1) and the lower dovetail clamp body (7) have the same structure;
the upper dovetail clamp body (1) comprises: the novel testing machine comprises a left half body (1-1) and a right half body (1-2), dovetail-shaped bulges which can be mutually clamped with the tensile end of the testing machine are arranged on the outer walls of the left half body (1-1) and the right half body (1-2), and after the left half body (1-1) and the right half body (1-2) are mutually combined, the inner wall is of a cavity structure which is used for being clamped with the assembly part.
6. The clamping device for bolt physical tensile test of claim 4, wherein: the upper testing machine connecting piece is an upper dovetail V-shaped toothed clamp body (8), the lower testing machine connecting piece is a lower dovetail V-shaped toothed clamp body (9), and the upper dovetail V-shaped toothed clamp body (8) and the lower dovetail V-shaped toothed clamp body (9) have the same structure;
the upper dovetail V-shaped toothed clamp body (8) comprises: the left half V-shaped toothed body and the right half V-shaped toothed body are respectively provided with a dovetail-shaped bulge which can be mutually clamped with the tensile end of the testing machine, the inner walls of the left half V-shaped toothed body and the right half V-shaped toothed body are respectively provided with a long groove with a V-shaped section, the inner walls of the long grooves are provided with transverse teeth from top to bottom, and after the left half V-shaped toothed body and the right half V-shaped toothed body are mutually combined, a hole-shaped structure with a diamond-shaped section is formed, and the assembly part is of a columnar structure and is clamped in the hole-shaped structure of the diamond.
7. The clamping device for bolt physical tensile test of claim 4, wherein: the upper testing machine connecting piece is an upper dovetail V-shaped clamp body (11), the lower testing machine connecting piece is a lower dovetail V-shaped clamp body (12), the upper dovetail V-shaped clamp body (11) and the lower dovetail V-shaped clamp body (12) are identical in structure, an upper locking piece (10) is arranged at the top of the upper dovetail V-shaped clamp body (11), a lower locking piece (13) is arranged at the bottom of the lower dovetail V-shaped clamp body (12), and the upper locking piece (10) and the lower locking piece (13) are identical in structure;
the upper dovetail V-shaped clamp body (11) comprises: the left half V-shaped plate body and the right half V-shaped plate body are respectively provided with dovetail-shaped bulges which can be mutually clamped with the tensile end of the testing machine on the outer walls of the left half V-shaped plate body and the right half V-shaped plate body, long grooves with V-shaped sections are respectively arranged on the inner walls of the left half V-shaped plate body and the right half V-shaped plate body, a hole-shaped structure with a diamond-shaped section is formed after the left half V-shaped plate body and the right half V-shaped plate body are mutually combined, the assembly part is of a columnar structure with external threads at the top and is clamped in the hole-shaped structure with the diamond-shaped section, and the upper locking part (10) is mounted on the external threads of the assembly part in a matched mode.
8. The clamping device for bolt physical tensile test of claim 7, wherein: the upper locking piece (10) and the lower locking piece (13) are both internally threaded cushion blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222898824.8U CN219265899U (en) | 2022-11-01 | 2022-11-01 | Clamping device for bolt real object tensile test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222898824.8U CN219265899U (en) | 2022-11-01 | 2022-11-01 | Clamping device for bolt real object tensile test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219265899U true CN219265899U (en) | 2023-06-27 |
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ID=86870692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222898824.8U Active CN219265899U (en) | 2022-11-01 | 2022-11-01 | Clamping device for bolt real object tensile test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219265899U (en) |
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2022
- 2022-11-01 CN CN202222898824.8U patent/CN219265899U/en active Active
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