Clamping auxiliary tool for tensile test

By improving the design of the clamping assembly and using a combination of threaded rods and limiting rods, stable clamping of the aluminum foil is achieved, solving the problem that traditional clamping equipment cannot stably clamp thin aluminum foil and ensuring the accuracy of the tensile test.

CN223389554UActive Publication Date: 2025-09-26JIANGSU SHICHUANG INTELLIGENT EQUIP TECH CO LTD
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Patent Information

Application Number
CN202422342139.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-25
Publication Date
2025-09-26
Estimated Expiration
2034-09-25

AI Technical Summary

Technical Problem

Traditional clamping equipment cannot stably clamp thin aluminum foil, resulting in inaccurate tensile test data.

Method used

The clamping assembly design uses a combination of threaded rods and limiting rods to achieve the winding, clamping and straightening functions of the aluminum foil, combined with a hydraulic system for stable clamping.

Benefits of technology

It effectively prevents the aluminum foil from escaping from the clamp during the tensile test, ensuring the accuracy and stability of the experimental data.

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Abstract

The clamping auxiliary tool for the tensile test comprises a clamping assembly, an inlet groove is formed in the upper portion of the clamping assembly, a first threaded rod is in threaded connection with the interior of one side of the clamping assembly, and the tail end of the first threaded rod is inserted into the inlet groove and rotationally connected with a clamping plate. Two sets of first sliding rods are fixedly connected to one side of the clamping plate, the other ends of the first sliding rods penetrate through the clamping assembly to be fixedly connected with limiting pieces, a control groove communicating with the inlet groove is formed in the lower portion of the clamping assembly, and a first limiting rod is arranged on the side, close to the inlet groove, in the control groove; a second limiting rod and a third limiting rod which are vertically distributed are arranged on the side, away from the inlet groove, of the interior of the control groove, the upper portion of the third limiting rod is flush with the upper portion of the first limiting rod, and the two ends of the third limiting rod are fixedly connected with the control groove. And unstable clamping caused by thin aluminum-foil paper is prevented.
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Description

Technical Field

[0001] The utility model relates to the field of aluminum foil processing, in particular to a clamping auxiliary tool for tensile testing. Background Art

[0002] Aluminum foil refers to thin strips made of aluminum and aluminum alloys, generally no thicker than 0.2mm. Due to its soft texture, good ductility, and silvery-white luster, aluminum foil is widely used in various fields. The production process mainly includes raw material preparation, smelting, rolling, annealing, and surface treatment. Smelting involves heating pure aluminum blocks to a high temperature to facilitate rolling; rolling involves repeatedly rolling and stretching the molten aluminum into thin sheets; annealing eliminates residual stress and improves the toughness and ductility of the aluminum foil; and surface treatment removes defects and burrs caused by the rolling process.

[0003] When conducting a tensile test on aluminum foil, a clamping device is used to fix the two ends of the aluminum foil to achieve fixation of the aluminum foil. However, due to the thinness of the aluminum foil, the traditional clamping device cannot clamp it stably, causing the aluminum foil to detach from the clamping device during the tensile test, resulting in inaccurate experimental data. Utility Model Content

[0004] The purpose of the present utility model is to provide a clamping auxiliary tool for tensile testing to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a clamping auxiliary tool for tensile testing, comprising a clamping assembly, an inlet groove starting from the upper part of the clamping assembly, a first threaded rod connected to the internal thread of one side of the clamping assembly, the tail end of the first threaded rod is inserted into the inlet groove and rotatably connected to the clamping plate, two groups of first sliding rods are fixedly connected to one side of the clamping plate, the other end of the first sliding rod penetrates the clamping assembly and is fixedly connected to a limiting plate, a control groove communicating with the inlet groove is opened at the lower part of the clamping assembly, a first limiting rod is arranged on the side of the control groove close to the inlet groove, a vertically distributed second limiting rod and a third limiting rod are arranged on the side of the control groove away from the inlet groove, the upper part of the third limiting rod is flush with the upper part of the first limiting rod, and both ends of the third limiting rod are fixedly connected to the control groove.

[0006] Preferably, the two ends of the first limiting rod are fixedly connected to the first connecting rod, and sliding grooves are opened on both sides of the clamping assembly. On one side, the first connecting rod is slidingly connected to the inside of the second sliding rod, and the second sliding rod is fixedly connected to the inside of the sliding groove. On the other side, the first connecting rod is threadedly connected to the inside of the second threaded rod, and one end of the second threaded rod is rotatably connected to the sliding groove.

[0007] Preferably, the two ends of the second limiting rod are fixedly connected to the second connecting rod, lifting grooves are opened on both sides of the clamping assembly, the two sides of the clamping assembly are fixedly connected to the first mounting bracket, the inside of the first mounting bracket is fixedly connected to the third sliding rod, the third sliding rod is slidably connected to the inside of the second connecting rod, and a spring is fixedly connected between the lower part of the second connecting rod and the first mounting bracket, and the spring is sleeved on the outside of the third sliding rod.

[0008] Preferably, a communication groove facing the second limiting rod and the third limiting rod is opened at the lower part of one side of the clamping assembly.

[0009] Preferably, a rubber pad is fixedly connected to the side of the clamping plate facing the inlet groove.

[0010] Preferably, the lower side of the lower clamping assembly is fixedly connected to a processing table, the upper part of the processing table is fixedly connected to a second mounting bracket, the upper part of the second mounting bracket is fixedly connected to a hydraulic cylinder, the upper side of the upper clamping assembly is fixedly connected to two groups of connecting plates, the upper part of the connecting plate is fixedly connected to a lifting plate, the lifting plate is fixedly connected to the power end of the hydraulic cylinder, connecting grooves are opened on both sides of the second mounting bracket, the inside of the connecting grooves is fixedly connected to a lifting rod, and the lifting rod is slidably connected to the outside of the lifting plate.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The utility model wraps the aluminum foil inserted into the inlet slot around one side of the first limiting rod and then inserts it between the second limiting rod and the third limiting rod, and then extends out of the connecting slot. By rotating the first threaded rod, the clamping plate moves to cooperate with the inner wall of the inlet slot to clamp the aluminum foil. The spring pulls the second connecting rod to move the second limiting rod downward, cooperating with the third limiting rod to clamp the aluminum foil. The aluminum foil undergoing the tensile test can be further clamped by the winding and clamping method to prevent unstable clamping due to the thin aluminum foil.

[0013] 2. The utility model also straightens the aluminum foil by rotating the second threaded rod, and the first connecting rod drives the first limiting rod to move, thereby preventing the aluminum foil from being loosened and causing unstable clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from the first perspective;

[0015] Figure 2 This is a schematic diagram of the structure of the clamping assembly of the utility model from the second viewing angle;

[0016] Figure 3 This is a cross-sectional view of the clamping assembly structure from the third perspective of the present invention;

[0017] Figure 4This is a schematic diagram of the structure of the clamping assembly of the utility model from the fourth perspective;

[0018] Figure 5 This is a schematic diagram of the sliding groove structure from the fourth perspective of the utility model.

[0019] In the figure: 1. Processing table; 2. Clamping assembly; 3. First threaded rod; 4. Clamping plate; 5. First sliding rod; 6. Limiting plate; 7. Second mounting bracket; 8. Hydraulic cylinder; 9. Inlet groove; 10. Control groove; 11. First limiting rod; 12. Second limiting rod; 13. Third limiting rod; 14. Connecting groove; 15. Sliding groove; 16. First connecting rod; 17. Second threaded rod; 18. Second sliding rod; 19. First mounting bracket; 20. Lifting groove; 21. Second connecting rod; 22. Third sliding rod; 23. Spring; 24. Rubber pad; 25. Connecting plate; 26. Lifting plate; 27. Connecting groove; 28. Lifting rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-5 The utility model provides a technical solution: a clamping auxiliary tool for tensile testing, including a clamping component 2, an inlet groove 9 is provided at the top of the clamping component 2, which is used to insert the aluminum foil into the clamping component 2, a first threaded rod 3 is installed on the internal thread of one side of the clamping component 2, the tail end of the first threaded rod 3 is inserted into the inlet groove 9 and a clamping plate 4 is rotatably installed thereon, and by rotating the first threaded rod 3, the clamping plate 4 moves to match the inner wall of the inlet groove 9 to clamp the aluminum foil, and two groups of first sliding rods 5 are fixedly welded on one side of the clamping plate 4, and the other end of the first sliding rod 5 penetrates the clamping component 2 and is fixedly welded to a limiting plate 6 for To ensure that the clamping plate 4 cannot rotate, a control groove 10 communicating with the inlet groove 9 is opened at the lower part of the clamping assembly 2. A first limiting rod 11 is provided on the side of the control groove 10 close to the inlet groove 9. A second limiting rod 12 and a third limiting rod 13 are vertically distributed on the side of the control groove 10 away from the inlet groove 9. The upper part of the third limiting rod 13 is flush with the upper part of the first limiting rod 11. Both ends of the third limiting rod 13 are fixedly welded to the control groove 10. The aluminum foil inserted into the inlet groove 9 is further clamped by wrapping it around one side of the first limiting rod 11 and then inserting it between the second limiting rod 12 and the third limiting rod 13.

[0022] The first limiting rod 11 is fixedly welded with a first connecting rod 16 at both ends, and a sliding groove 15 is opened on both sides of the clamping assembly 2. A second sliding rod 18 is slidably connected to the interior of the first connecting rod 16 on one side, and the second sliding rod 18 is fixedly welded to the interior of the sliding groove 15. A second threaded rod 17 is threadedly connected to the interior of the first connecting rod 16 on the other side. One end of the second threaded rod 17 is rotatably connected to the sliding groove 15. By rotating the second threaded rod 17, the first connecting rod 16 drives the first limiting rod 11 to move, thereby straightening the aluminum foil to prevent the aluminum foil from being loose and causing unstable clamping; the second limiting rod 11 is fixedly welded to the interior of the sliding groove 15, and the second threaded rod 17 is fixedly welded to the interior of the sliding groove 15. The two ends of the control rod 12 are fixedly welded with a second connecting rod 21, and lifting grooves 20 are opened on both sides of the clamping assembly 2. The first mounting bracket 19 is fixedly welded on both sides of the clamping assembly 2. The third sliding rod 22 is fixedly welded inside the first mounting bracket 19. The third sliding rod 22 is slidably installed inside the second connecting rod 21. A spring 23 is fixedly welded between the lower part of the second connecting rod 21 and the first mounting bracket 19. The spring 23 is sleeved on the outside of the third sliding rod 22. The spring 23 pulls the second connecting rod 21 to make the second limiting rod 12 move downward, and cooperates with the third limiting rod 13 to clamp the aluminum Foil; A connecting groove 14 is provided on the lower part of one side of the clamping assembly 2, facing the second limiting rod 12 and the third limiting rod 13. By passing the tail end of the aluminum foil through the connecting groove 14, it is possible to observe whether the aluminum foil is out of the clamping assembly 2; A rubber pad 24 is fixedly welded on the side of the clamping plate 4 facing the inlet groove 9, which can protect the aluminum foil and increase the friction between the clamping plate 4 and the inlet groove 9. A processing table 1 is fixedly welded on the lower side of the lower clamping assembly 2, and a second mounting bracket 7 is fixedly welded on the upper part of the processing table 1. A hydraulic cylinder 8 is installed on the upper flange of the second mounting bracket 7. Two sets of connecting plates 25 are fixedly welded to prevent the lifting assembly from affecting the fixation of the aluminum foil. A lifting plate 26 is fixedly welded on the upper part of the connecting plate 25. The lifting plate 26 is threadedly installed with the power end of the hydraulic cylinder 8 to fix the two sides of the aluminum foil inside the clamping components 2 on the upper and lower sides. The hydraulic cylinder 8 drives the upper clamping component 2 to move through the lifting plate 26 and the connecting plate 25 to perform a tensile test. Connecting grooves 27 are opened on both sides of the second mounting frame 7. A lifting rod 28 is fixedly welded inside the connecting groove 27. The lifting rod 28 is slidably installed on the outside of the lifting plate 26 to ensure that the lifting plate 26 can be lifted and lowered smoothly.

[0023] Working principle: When the utility model is in use, the two sides of the aluminum foil are fixed inside the clamping components 2 on the upper and lower sides. The hydraulic cylinder 8 drives the upper clamping component 2 to move through the lifting plate 26 and the connecting plate 25 to perform a tensile test. The aluminum foil inserted into the inlet slot 9 is wrapped around one side of the first limiting rod 11 and then inserted between the second limiting rod 12 and the third limiting rod 13, and then extends out from the connecting groove 14. By rotating the first threaded rod 3, the clamping plate 4 moves to cooperate with the inner wall of the inlet slot 9 to clamp the aluminum foil. The spring 23 pulls the second connecting rod 21 to make the second limiting rod 12 move downward and cooperate with the third limiting rod 13 to clamp the aluminum foil. By rotating the second threaded rod 17, the first connecting rod 16 drives the first limiting rod 11 to move, thereby straightening the aluminum foil to prevent the aluminum foil from loosening and causing unstable clamping.

[0024] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A clamping auxiliary tool for tensile testing, comprising a clamping assembly (2), characterized in that: The upper part of the clamping assembly (2) begins with an inlet groove (9), and the first threaded rod (3) is internally threadedly connected to one side of the clamping assembly (2). The tail end of the first threaded rod (3) is inserted into the inlet groove (9) and is rotatably connected to the clamping plate (4). Two groups of first sliding rods (5) are fixedly connected to one side of the clamping plate (4). The other end of the first sliding rod (5) penetrates the clamping assembly (2) and is fixedly connected to the limiting plate (6). The lower part of the clamping assembly (2) is provided with a control groove (10) that communicates with the inlet groove (9). A first limiting rod (11) is provided inside the control groove (10) on a side close to the inlet groove (9). A second limiting rod (12) and a third limiting rod (13) are vertically distributed inside the control groove (10) on a side away from the inlet groove (9). The upper part of the third limiting rod (13) is flush with the upper part of the first limiting rod (11), and both ends of the third limiting rod (13) are fixedly connected to the control groove (10).

2. A clamping auxiliary tool for tensile testing according to claim 1, characterized in that: The first limiting rod (11) is fixedly connected to the first connecting rod (16) at both ends, and the clamping assembly (2) is provided with sliding grooves (15) on both sides. The first connecting rod (16) is slidably connected to the second sliding rod (18) on one side, and the second sliding rod (18) is fixedly connected to the inside of the sliding groove (15). The first connecting rod (16) is threadedly connected to the second threaded rod (17) on the other side, and one end of the second threaded rod (17) is rotatably connected to the sliding groove (15).

3. The clamping auxiliary tool for tensile testing according to claim 1, characterized in that: The second limiting rod (12) is fixedly connected to the second connecting rod (21) at both ends, and the clamping assembly (2) is provided with a lifting groove (20) on both sides. The clamping assembly (2) is fixedly connected to the first mounting frame (19) on both sides, and the first mounting frame (19) is fixedly connected to the inside of the third sliding rod (22). The third sliding rod (22) is slidably connected to the inside of the second connecting rod (21). A spring (23) is fixedly connected between the lower part of the second connecting rod (21) and the first mounting frame (19), and the spring (23) is sleeved on the outside of the third sliding rod (22).

4. The clamping auxiliary tool for tensile testing according to claim 1, characterized in that: A communication groove (14) facing the second limiting rod (12) and the third limiting rod (13) is provided at the lower part of one side of the clamping assembly (2).

5. The clamping auxiliary tool for tensile testing according to claim 1, characterized in that: A rubber pad (24) is fixedly connected to one side of the clamping plate (4) facing the inlet groove (9).

6. The clamping auxiliary tool for tensile testing according to claim 1, characterized in that: The lower side of the lower clamping assembly (2) is fixedly connected to a processing table (1), the upper part of the processing table (1) is fixedly connected to a second mounting frame (7), the upper part of the second mounting frame (7) is fixedly connected to a hydraulic cylinder (8), the upper side of the upper clamping assembly (2) is fixedly connected to two groups of connecting plates (25), the upper part of the connecting plate (25) is fixedly connected to a lifting plate (26), the lifting plate (26) is fixedly connected to the power end of the hydraulic cylinder (8), connecting grooves (27) are provided on both sides of the second mounting frame (7), the interior of the connecting groove (27) is fixedly connected to a lifting rod (28), and the lifting rod (28) is slidably connected to the outer side of the lifting plate (26).