High-strength bolt tensile strength detection tool

Abstract

The utility model discloses a high-strength bolt tensile strength detection tool, which comprises a bottom plate, a support, a tensile hydraulic cylinder and a tensile strength detection device, the top of the bottom plate is provided with a threaded groove, the bottom of the tensile strength detection device is fixedly connected with a mounting seat, the top of the mounting seat is fixedly connected with a threaded block, and the threaded block is fixedly connected with the support. A butt joint seat is movably connected to the bottom of the mounting seat, a limiting column is movably connected to the outer wall of the butt joint seat, a spring is fixedly connected to one end of the limiting column, an inserting column is fixedly connected to the top of the butt joint seat, and an inserting rod is movably connected to the inner wall of the inserting column. The stretching frame and the mounting frame can be respectively disassembled and assembled with the tensile strength detection device and the bottom plate, so that the proper stretching frame and mounting frame can be conveniently replaced according to the size of a bolt, convenience is also brought to overhaul and replacement, the practicability is effectively improved, different use requirements are met, and the practicability is high. The device solves the current problems of disassembly, maintenance and replacement.

Description

Technical Field

[0001] This utility model belongs to the technical field of bolt tensile strength testing fixtures, specifically relating to a high-strength bolt tensile strength testing fixture. Background Technology

[0002] Bolt tensile strength testing is a key step in ensuring bolt quality and performance. Through tensile strength testing, the maximum tensile force that a bolt can withstand under tension can be evaluated, thereby determining whether it meets the predetermined strength grade and usage requirements. During the tensile testing, the bolt is connected to the tooling to facilitate subsequent stable tensile testing.

[0003] Currently, bolt tensile strength testing fixtures are either welded to the testing device or directly fixed with bolts, which causes inconvenience during later disassembly and assembly, affecting the convenience of maintenance. This phenomenon has become a problem that urgently needs to be solved by those in the field. Summary of the Invention

[0004] The purpose of this invention is to provide a high-strength bolt tensile strength testing fixture for existing devices, in order to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a high-strength bolt tensile strength testing fixture, including a base plate, a bracket, a tensile hydraulic cylinder and a tensile strength testing device, wherein the top of the base plate is provided with a threaded groove, the bottom of the tensile strength testing device is fixedly connected to a mounting base, the top of the mounting base is fixedly connected to a threaded block, and the bottom of the mounting base is movably connected to a mating seat.

[0006] The outer wall of the docking seat is movably connected to a limiting post, one end of which is fixedly connected to a spring. A plug is fixedly connected to the top of the docking seat, and a plug rod is movably connected to the inner wall of the plug. A tension frame is fixedly connected to the bottom of the docking seat, and a gasket is fixedly connected to the inner bottom wall of the tension frame. A bolt is movably connected to the inner wall of the tension frame, and a mounting bracket is movably connected to the outer wall of the bolt. A mounting post is fixedly connected to the bottom of the mounting bracket. This allows for the disassembly and assembly of the tension frame and mounting bracket to the tensile strength testing device and the base plate, respectively. This facilitates the replacement of appropriate tension frames and mounting brackets according to the bolt size, and also provides convenience for maintenance and replacement, effectively improving practicality and meeting different usage requirements. Multiple sets of bolts can be installed with the tension frame and mounting bracket simultaneously, enabling simultaneous tensile strength testing of multiple sets of bolts. This meets different testing needs, improves the progress of testing work, and avoids the inconvenience of only being able to test one bolt at a time.

[0007] This utility model further explains that the outer wall of the mounting base and the outer wall of the docking base are both provided with connecting grooves that match the limiting post. The mounting base is movably connected to the limiting post through the connecting groove, and the docking base is fixedly connected to the spring through the connecting groove. It can be retracted into the docking base when the limiting post is pressed, which facilitates the installation and disassembly of the mounting base and the docking base. At the same time, after installation, the docking base and the mounting base can be connected and positioned, which improves the connection of the installation.

[0008] The present invention further explains that the outer wall of the insertion rod is provided with threads, and the insertion rod is threadedly connected to the threaded block through the threads, which facilitates the threaded installation of the insertion rod and the threaded block, thereby improving the convenience of disassembly and assembly.

[0009] This utility model further illustrates that the bottom of the tension frame and the top of the mounting frame are both provided with mounting grooves, and the tension frame and the mounting frame are movably connected to bolts through the mounting grooves, which facilitates the connection of both ends of the bolts to the tension frame and the mounting frame respectively, thereby facilitating the testing work.

[0010] The present invention further explains that the outer wall of the mounting column is provided with threads, and the mounting column is threadedly connected to the threaded groove, which facilitates the disassembly and assembly of the mounting bracket and the base plate.

[0011] This utility model further explains that the outer wall of the insertion post is provided with a through groove that matches the insertion rod, and the insertion post is engaged with the insertion rod through the through groove, which can connect and position the mounting base and the docking base, thereby improving the stability of use and facilitating disassembly later.

[0012] Compared with the prior art, the beneficial effects achieved by this utility model are: This utility model,

[0013] (1) By providing threaded grooves, mounting bases, threaded blocks, mating seats, limit posts, springs, insert posts, insert rods and mounting posts, the tension frame and mounting frame can be disassembled and assembled with the tensile strength testing device and the base plate respectively, so as to facilitate the replacement of the appropriate tension frame and mounting frame according to the size of the bolt, and also to facilitate maintenance and replacement, effectively improving practicality and meeting different usage needs.

[0014] (2) By setting up a tensile hydraulic cylinder, a tensile strength testing device, a tensile frame and a mounting frame, multiple sets of bolts can be installed with the tensile frame and the mounting frame at the same time, so that tensile strength testing can be performed on multiple sets of bolts at the same time, thereby meeting different testing needs, improving the progress of testing work, and avoiding the inconvenience caused by only being able to test one bolt at a time. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a front view structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the base plate structure of this utility model;

[0018] Figure 3 This is a utility model Figure 1 Enlarged view of point A in the middle;

[0019] Figure 4 This is a schematic diagram of the connection between the tensile strength testing device and the tensile frame structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the tensioning frame and mounting frame of this utility model;

[0021] Figure 6 This is a schematic diagram of the limiting column structure of this utility model.

[0022] In the diagram: 1. Base plate; 2. Threaded groove; 3. Bracket; 4. Tensile hydraulic cylinder; 5. Tensile strength testing device; 6. Mounting seat; 7. Threaded block; 8. Connecting seat; 9. Limiting post; 10. Spring; 11. Insert post; 12. Insert rod; 13. Tensile frame; 14. Gasket; 15. Bolt; 16. Mounting bracket; 17. Mounting post. Detailed Implementation

[0023] The following detailed, non-limiting description of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] Please see Figure 1-6 The present invention provides a technical solution: a high-strength bolt tensile strength testing fixture, including a base plate 1, a bracket 3, a tensile hydraulic cylinder 4 and a tensile strength testing device 5. The top of the base plate 1 is provided with a threaded groove 2, the bottom of the tensile strength testing device 5 is fixedly connected to a mounting base 6, the top of the mounting base 6 is fixedly connected to a threaded block 7, and the bottom of the mounting base 6 is movably connected to a mating seat 8.

[0025] A limiting post 9 is movably connected to the outer wall of the docking seat 8. A spring 10 is fixedly connected to one end of the limiting post 9. An insert post 11 is fixedly connected to the top of the docking seat 8. An insert rod 12 is movably connected to the inner wall of the insert post 11. A tension frame 13 is fixedly connected to the bottom of the docking seat 8. A gasket 14 is fixedly connected to the inner bottom wall of the tension frame 13. A bolt 15 is movably connected to the inner wall of the tension frame 13. A mounting frame 16 is movably connected to the outer wall of the bolt 15. A mounting post 17 is fixedly connected to the bottom of the mounting frame 16. This allows the tension frame 13 and the mounting frame 16 to be respectively connected to a tensile strength tester. The testing device 5 and the base plate 1 can be disassembled and assembled, which makes it easy to replace the appropriate tension frame 13 and mounting frame 16 according to the size of the bolt 15. It also brings convenience to maintenance and replacement, effectively improves practicality, and meets different usage needs. Multiple sets of bolts 15 can be installed with tension frame 13 and mounting frame 16 at the same time, so that multiple sets of bolts 15 can be tested for tensile strength at the same time. This can meet different testing needs, improve the progress of testing work, and avoid the inconvenience caused by only being able to test one bolt 15 at a time.

[0026] In this embodiment, the outer wall of the mounting base 6 and the outer wall of the docking base 8 are both provided with connecting grooves that match the limiting post 9. The mounting base 6 is movably connected to the limiting post 9 through the connecting grooves, and the docking base 8 is fixedly connected to the spring 10 through the connecting grooves. It can be retracted into the docking base 8 when the limiting post 9 is pressed, which facilitates the installation and disassembly of the mounting base 6 and the docking base 8. At the same time, after installation, the docking base 8 can be connected and positioned with the mounting base 6, which improves the connection of the installation. Example

[0027] Based on Example 1, a preferred embodiment of the high-strength bolt tensile strength testing fixture provided by this utility model is as follows: Figures 1 to 6 As shown: The outer wall of the insertion rod 12 is provided with threads, and the insertion rod 12 is threadedly connected to the threaded block 7 through the threads, which facilitates the threaded installation of the insertion rod 12 and the threaded block 7, thereby improving the convenience of disassembly and assembly.

[0028] In this embodiment, the bottom of the tension frame 13 and the top of the mounting frame 16 are both provided with mounting grooves, and the tension frame 13 and the mounting frame 16 are movably connected to the bolts 15 through the mounting grooves, so that the two ends of the bolts 15 can be connected to the tension frame 13 and the mounting frame 16 respectively, thereby facilitating the testing work.

[0029] Furthermore, the outer wall of the mounting column 17 is provided with threads, and the mounting column 17 is threadedly connected to the threaded groove 2, which facilitates the disassembly and assembly of the mounting bracket 16 and the base plate 1.

[0030] Furthermore, the outer wall of the insertion post 11 is provided with a through groove that matches the insertion rod 12, and the insertion post 11 is engaged with the insertion rod 12 through the through groove, which can connect and position the mounting base 6 and the docking base 8, thereby improving the stability of use and facilitating disassembly later.

[0031] In use, one end of the bolt 15 to be tested is first inserted into the tension frame 13 and then into the mounting bracket 16 for positioning with a nut. Then, the tension frame 13 is moved by the tension hydraulic cylinder 4 to perform tensile strength testing on the bolt 15. The multiple tension hydraulic cylinders 4 and the tensile strength testing device 5 facilitate the connection of multiple sets of bolts 15 with the tension frame 13 and the mounting bracket 16 for strength testing, which can improve the progress of the testing work. At the same time, when disassembly and maintenance are required, the mounting bracket 16 can be rotated to disengage the bottom mounting post 17 from the threaded groove 2 on the base plate 1, thereby facilitating the replacement and maintenance of the mounting bracket 16. The insertion rod 12 is separated from the threaded block 7 and pulled out into the insertion post 11. The spring 10 is squeezed by pressing the limiting post 9 to move it into the docking seat 8 and separate it from the mounting seat 6. The tension frame 13 is pulled down to separate the top docking seat 8 from the mounting seat 6, thereby facilitating the disassembly, maintenance and replacement of the tension frame 13.

[0032] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A high-strength bolt tensile strength testing fixture, comprising a base plate (1), a bracket (3), a tensile hydraulic cylinder (4), and a tensile strength testing device (5), characterized in that: The top of the base plate (1) is provided with a threaded groove (2), the bottom of the tensile strength testing device (5) is fixedly connected with a mounting base (6), the top of the mounting base (6) is fixedly connected with a threaded block (7), and the bottom of the mounting base (6) is movably connected with a mating seat (8). The outer wall of the docking seat (8) is movably connected to a limiting post (9), one end of the limiting post (9) is fixedly connected to a spring (10), the top of the docking seat (8) is fixedly connected to a plug post (11), the inner wall of the plug post (11) is movably connected to a plug rod (12), the bottom of the docking seat (8) is fixedly connected to a tension frame (13), the inner bottom wall of the tension frame (13) is fixedly connected to a gasket (14), the inner wall of the tension frame (13) is movably connected to a bolt (15), the outer wall of the bolt (15) is movably connected to a mounting frame (16), and the bottom of the mounting frame (16) is fixedly connected to a mounting post (17).

2. The high-strength bolt tensile strength testing fixture according to claim 1, characterized in that: The outer wall of the mounting base (6) and the outer wall of the docking base (8) are both provided with connecting grooves that match the limiting post (9). The mounting base (6) is movably connected to the limiting post (9) through the connecting groove, and the docking base (8) is fixedly connected to the spring (10) through the connecting groove.

3. The high-strength bolt tensile strength testing fixture according to claim 1, characterized in that: The outer wall of the insertion rod (12) is provided with threads, and the insertion rod (12) is threadedly connected to the threaded block (7) through the threads.

4. The high-strength bolt tensile strength testing fixture according to claim 1, characterized in that: The bottom of the tension frame (13) and the top of the mounting frame (16) are both provided with mounting grooves, and the tension frame (13) and the mounting frame (16) are movably connected to the bolts (15) through the mounting grooves.

5. The high-strength bolt tensile strength testing fixture according to claim 1, characterized in that: The outer wall of the mounting post (17) is provided with threads, and the mounting post (17) is threadedly connected to the threaded groove (2).

6. The high-strength bolt tensile strength testing fixture according to claim 1, characterized in that: The outer wall of the insert (11) is provided with a through groove that matches the insert rod (12), and the insert (11) is engaged with the insert rod (12) through the through groove.

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