Detachable ring groove rivet pull-off test device
By designing a detachable ring groove rivet pull-out test device, which utilizes threaded rod connection and square jaw structure, the problems of cumbersome loading and unloading, bulkiness and poor stability of existing devices are solved, and efficient and safe test operation is achieved.
Patent Information
- Application Number
- CN202423203617.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2034-12-24
AI Technical Summary
The existing ring groove rivet pull-out test device has an excessively long clamping stroke, is cumbersome to load and unload, is heavy and inconvenient, has poor stability, affects test accuracy, and is a serious waste of resources.
The device employs a detachable ring groove rivet pull-out test apparatus, which is directly connected to the testing machine via a threaded rod. The jaws are designed with a square cavity structure and a recessed step. The jaws are detachable and made of 40CrNiMoA material, making it suitable for different specifications of flat plates.
It simplifies fixture connections, reduces safety risks, improves test production efficiency, ensures test stability and accuracy, and avoids resource waste.
Smart Images
Figure CN223815278U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to aviation material detection and test technical field relates to a device of ring groove rivet pull-out test, concretely relates to a detachable ring groove rivet pull-out test device. BACKGROUND
[0002] According to HB5512-83 ring groove rivet technical condition, ring groove rivet needs to carry out pull-out test, and both ends of ring groove rivet are round head structure, because of its own structural characteristics, make the test machine clamp head unable to effectively clamp the end of ring groove rivet when carrying out pull-out force experiment, under general circumstances, ring groove rivet pull-out force test tool is a flat plate type pull-out tool combined with steel plate.The tool includes upper and lower flat plates, and the upper and lower flat plates are respectively provided with upper and lower clamping holes, and the middle part of the ring groove rivet is arranged in the upper and lower clamping holes, and the two ends are clamped on the upper and lower flat plates.In the test, the clamps of the test machine clamp the upper and lower clamping plates respectively and apply pulling force in opposite directions to carry out pull-out test.
[0003] Because the original clamp needs to be connected with the secondary clamp, the stroke of the upper and lower clamps is too long, and it is more troublesome to assemble and disassemble.Furthermore, the original test tool is relatively bulky, and it is relatively inconvenient to carry during the carrying process, and there is a risk of being injured by falling down.Because the size of the upper and lower flat plates has no size specification, the clamp also needs to be processed several sets according to the size specification of the flat plate, which is inconvenient to replace during the test process, causing some resource waste and being difficult to manage.Because the outer sides of the upper and lower flat plates are smooth planes without clamping points, there will be relative sliding between the clamping parts of the test machine and the upper and lower clamping plates during the pull-out test, and the stability is poor during the test process, the centering is not good, and the test precision is affected. UTILITY MODEL CONTENTS
[0004] In order to solve the above problems, the utility model provides a detachable ring groove rivet pull-out test device, which can be directly connected with the test machine, does not need to be connected with the secondary clamp, can randomly replace the size of the upper and lower flat plates, and the clamp is smaller and lighter, which reduces the safety risk, successfully solves the problem of resource waste, and improves the test production efficiency.
[0005] The technical scheme of the utility model is as follows:
[0006] A detachable ring groove rivet pull-out test device, which comprises an upper threaded rod, an upper jaw, an upper flat plate, a lower flat plate, a lower jaw, a lower threaded rod, the upper threaded rod is connected to the middle part of the upper cross beam of the equipment through threads, and the lower threaded rod is connected to the middle part of the lower cross beam of the equipment through threads;The structure of the upper jaw and the lower jaw is consistent, one end of the upper threaded rod is connected with the upper jaw, and one end of the lower threaded rod is connected with the lower jaw;The upper jaw provides lower limit position to the upper flat plate through the sunken step, the lower jaw provides upper limit position to the lower flat plate through the sunken step, and the upper flat plate and the lower flat plate are connected with each other.
[0007] Further, the ring groove rivets are riveted on the upper and lower flat plates to complete the connection of the upper and lower flat plates.
[0008] Further, the upper flat plate is perpendicular to the lower flat plate.
[0009] Further, the upper threaded rod and the lower threaded rod are of the same structure, and the upper and lower ends of the upper threaded rod are provided with the same threads.
[0010] Further, the upper and lower jaws are provided with different specifications of jaw openings, and the upper and lower flat plates are correspondingly provided with different specifications.
[0011] Further, the upper and lower jaws are both square frame structures with openings at the lower sides.
[0012] Further, the materials of the upper threaded rod, the lower threaded rod, the upper jaw and the lower jaw are all 40CrNiMoA.
[0013] The beneficial effects of the utility model are as follows:
[0014] 1. The threaded rod is directly connected with the equipment to overcome the problem of long stroke of the upper and lower clamps and the inconvenience of loading and unloading.
[0015] 2. The square cavity structure of the jaw is adopted to overcome the problem of heavy and inconvenient carrying of the test tool.
[0016] 3. The lower sinking step of the jaw is adopted to overcome the problem that the outer sides of the upper and lower flat plates are smooth planes without clamping points, and the clamping part of the testing machine and the upper and lower clamps will slide relative to each other during the pull-out test, which affects the stability and centering during the test, and affects the test precision.
[0017] 4. The device can be directly connected with the testing machine without the need of connecting a secondary clamp, the specifications of the upper and lower flat plates can be changed at will, the clamp is small and light, the safety risk is reduced, the problem of resource waste is solved, and the test production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to more clearly illustrate the technical scheme of the utility model patent implementation mode, the following will be briefly introduced the drawings needed to be used in the implementation mode, it should be understood, the following drawings only show some embodiments of the utility model patent, therefore should not be regarded as the limitation to the scope, for the ordinary skilled person in the art, under the premise of not paying the creative labor, can also obtain other related drawings according to these drawings.
[0019] Figure 1It is detachable ring groove rivet pull-out test device structural schematic view.
[0020] Figure 2 It is upper and lower plate riveting schematic view.
[0021] Figure 3 It is upper and lower threaded rod schematic view.
[0022] Figure 4 It is upper and lower jaw with groove schematic view.
[0023] Wherein: 1-upper threaded rod, 2-upper jaw, 3-ring groove rivet, 4-upper plate, 5-lower plate, 6-lower jaw, 7-lower threaded rod. DETAILED DESCRIPTION
[0024] This part is the embodiment of the utility model, for explaining and illustrating the technical scheme of the utility model. In the case of no conflict, the embodiments of the utility model and the features in the embodiments can be combined with each other.
[0025] In the description of the utility model, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the direction or positional relationship based on the position or location relationship of the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or the case must have a specific orientation, a specific orientation and operation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implying the number of the indicated technical features. Therefore, the features limited by "first", "second" and the like can be explicitly or implicitly included. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.
[0026] In the description of the utility model, it should be pointed out that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be interpreted broadly, for example, it can be fixedly connected, and can also be detachably connected or integrally connected, can be mechanically connected, can be point connected, can be directly connected, can be indirectly connected through an intermediate medium, and can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.
[0027] Embodiment 1:
[0028] A detachable ring groove rivet pull-out test device includes an upper threaded rod 1, an upper jaw 2, an upper plate 4, a lower plate 5, a lower jaw 6, and a lower threaded rod 7. The upper threaded rod 1 is threadedly connected to the middle of the crossbeam of the equipment, and the lower threaded rod 7 is threadedly connected to the middle of the lower crossbeam of the equipment. The upper jaw 2 and the lower jaw 6 have the same structure. One end of the upper threaded rod 1 is connected to the upper jaw 2, and one end of the lower threaded rod 7 is connected to the lower jaw 6. The upper jaw 2 provides a lower limit to the upper plate 4 through a recessed step, and the lower jaw 6 provides an upper limit to the lower plate 5 through a recessed step. The upper plate 4 and the lower plate 5 are interconnected.
[0029] The ring groove rivet 3 is riveted to the upper plate 4 and the lower plate 5, completing the connection between the upper plate 4 and the lower plate 5.
[0030] The upper plate 4 and the lower plate 5 are perpendicular to each other.
[0031] The upper threaded rod 1 and the lower threaded rod 7 have the same structure, and the upper and lower ends of the upper threaded rod 1 are provided with the same thread.
[0032] The jaws are provided with upper jaws 2 and lower jaws 6 of different specifications, and corresponding upper plate 4 and lower plate 5 of different specifications are provided.
[0033] Both the upper jaw 2 and the lower jaw 6 are rectangular structures with openings at the bottom.
[0034] The upper threaded rod 1, the lower threaded rod 7, the upper jaw 2, and the lower jaw 6 are all made of 40CrNiMoA.
[0035] Example 2:
[0036] like Figure 1 As shown, a detachable grooved rivet pull-out test device includes: an upper threaded rod 1, an upper jaw 2, a grooved rivet 3, an upper plate 4, a lower plate 5, a lower jaw 6, and a lower threaded rod 7. The upper threaded rod 1 is threadedly connected to the sensor on the upper beam at the middle, and the lower threaded rod 7 is threadedly connected to the sensor on the upper beam at the middle. The upper and lower jaws are selected to be the same width as the upper and lower plates. One end of the upper threaded rod 1 is threadedly connected to the upper jaw 2, and the other end of the lower threaded rod 7 is threadedly connected to the lower jaw 6. The upper jaw 2 clamps the upper plate 4 upward by a recessed step, and the lower jaw 6 clamps the lower plate 5 downward by a recessed step, thus realizing the grooved rivet pull-out test.
[0037] In terms of specific structural design, the annular groove rivet 3 is riveted to the upper and lower plates, and the upper plate 4 and the lower plate 5 are riveted together perpendicularly to each other, such as... Figure 2 As shown.
[0038] In the specific structural design, one end of the upper threaded rod 1 is connected with the upper jaw 2 through thread, the other end of the lower threaded rod 7 is connected with the lower jaw 6 through thread, and the upper and lower ends of the threaded rod are provided with corresponding threads.
[0039] In the specific structural design, as shown in the figure, Figure 3 The other end of the threaded rod 1 is provided with a thread, and is directly connected with the upper sensor of the equipment through thread in the middle of the beam, without using a secondary clamp connection, solving the problem of long travel of the upper and lower clamps and the inconvenience of loading and unloading.
[0040] In the specific structural design, the upper jaw 2 clamps the upper plate 4 to pull it up, and the lower jaw 6 clamps the lower plate 5 to pull it down, and the clamping openings of the upper and lower jaws are provided with sinking steps with the same size as the upper and lower plates, as shown in the figure, Figure 4 Solving the problem of relative sliding between the clamping part of the testing machine and the upper and lower clamps, and solving the problems of poor stability and poor centering during the test, affecting the test precision.
[0041] In the specific structural design, the upper and lower jaws are several specifications of separate jaws according to the size specifications of the upper and lower plates, solving the problem that the size of the upper and lower plates has no size specification, and the clamp also needs to be processed according to the size specifications of the plate, which is not convenient to replace during the test process, causing waste of resources and difficult management.
[0042] In the specific structural design, the jaw is a square opening cavity structure, which is more convenient to carry and store, and the clamp is smaller and lighter, reducing the safety risk, solving the problem of waste of resources, and improving the test production efficiency.
[0043] In the specific structural design, the jaw is detachable and connected to the threaded rod through thread, which is convenient to disassemble.
[0044] In the specific structural design, the upper and lower threaded rods and the upper and lower jaws are composed of 40CrNiMoA, improving the strength of the clamp.
[0045] After the test piece is clamped, the computer test program is opened, the corresponding test method and test parameters are reset, the test is started, the computer system of the testing machine controls the servo motor to rotate through the speed regulation system, and the moving cross beam is driven to rise through the precision screw pair, when the tensile load reaches the maximum value, the ring groove rivet is pulled out under the action of the load, the upper and lower plates are separated and dropped, the testing machine collects and records the maximum load data, and judges whether the riveting degree of the sample is qualified according to the application requirement standard.
[0046] It should be explained finally: above-mentioned example is only for illustrating the technical scheme of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the utility model, and these modifications or replacements should be covered in the protection scope of the utility model.
Claims
1. A detachable ring groove rivet pull-out test device, characterized in that, It includes an upper threaded rod (1), an upper jaw (2), an upper plate (4), a lower plate (5), a lower jaw (6), and a lower threaded rod (7). The upper threaded rod (1) is connected to the middle of the crossbeam of the equipment by a thread, and the lower threaded rod (7) is connected to the middle of the lower crossbeam of the equipment by a thread. The upper jaw (2) and the lower jaw (6) have the same structure. One end of the upper threaded rod (1) is connected to the upper jaw (2), and one end of the lower threaded rod (7) is connected to the lower jaw (6). The upper jaw (2) provides a lower limit to the upper plate (4) through a sinking step, and the lower jaw (6) provides an upper limit to the lower plate (5) through a sinking step. The upper plate (4) and the lower plate (5) are connected to each other.
2. The detachable ring groove rivet pull-out test device according to claim 1, characterized in that, The ring groove rivet (3) is riveted to the upper plate (4) and the lower plate (5) to complete the connection between the upper plate (4) and the lower plate (5).
3. The detachable ring groove rivet pull-out test device according to claim 2, characterized in that, The upper plate (4) and the lower plate (5) are perpendicular to each other.
4. The detachable ring groove rivet pull-out test device according to claim 1, characterized in that, The upper threaded rod (1) and the lower threaded rod (7) have the same structure, and the upper and lower ends of the upper threaded rod (1) are provided with the same thread.
5. The detachable ring groove rivet pull-out test device according to claim 1, characterized in that, The upper jaw (2) and lower jaw (6) with different specifications of jaws are provided, and the upper plate (4) and lower plate (5) with different specifications are provided accordingly.
6. The detachable ring groove rivet pull-out test device according to claim 1, characterized in that, Both the upper jaw (2) and the lower jaw (6) are rectangular structures with openings at the bottom.
7. The detachable ring groove rivet pull-out test device according to claim 1, characterized in that, The upper threaded rod (1), the lower threaded rod (7), the upper jaw (2), and the lower jaw (6) are all made of 40CrNiMoA.