Flexible part mechanical detection clamp

Abstract

The utility model discloses a mechanical detection clamp for a flexible part. The mechanical detection clamp for the flexible part comprises a first clamping plate and a second clamping plate which are rotationally connected, a clamping area is formed between the first clamping plate and the second clamping plate, the clamping area is suitable for placing the flexible part, a first positioning part is arranged in the clamping area, and a second positioning part is arranged in the clamping area. The first clamping plate is provided with a first positioning part, the first positioning part is provided with a positioning surface arranged towards a first direction, the first clamping plate and the second clamping plate are positioned outside the clamping area and are provided with second positioning parts on two opposite sides along a second direction, and the first direction is perpendicular to the second direction. According to the technical scheme provided by the utility model, a sample can be better positioned in the middle of the upper and lower pneumatic chucks, so that the detection result is more accurate and reliable; when the sample is placed, the position of the sample does not need to be manually and repeatedly adjusted, and the detection efficiency is higher.

Description

Technical Field

[0001] This utility model relates to the technical field of flexible component processing machinery, specifically to a flexible component mechanical testing fixture. Background Technology

[0002] Tensile testing is a test method for determining the properties of materials under axial tensile load. Based on tensile testing, tensile performance indicators such as elastic limit, elongation, elastic modulus, proportional limit, reduction of area, tensile strength, yield point, and yield strength are obtained.

[0003] The current standard tensile testing procedure for flexible materials is as follows: a) Identify the sample to be tested; b) Place the sample vertically in the center of the two clamps of the tensile testing machine, visually ensuring verticality; c) Activate the upper pneumatic clamp to clamp the upper end of the sample; d) Allow the sample to naturally become vertical under gravity, then activate the lower pneumatic clamp to clamp the lower end of the sample; e) Start the tensile testing machine to perform the tensile test; f) Collect the tensile testing machine data. Steps b, c, and d require manual operation. This method is not only time-consuming and labor-intensive, but also often results in misaligned, non-vertically aligned, or improperly positioned samples, which are the main reasons for the current low testing efficiency and poor yield. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, the main purpose of this utility model is to provide a flexible component mechanical testing fixture, which aims to solve the problems of skewing, misalignment of the upper and lower ends, and the sample not being in the center of the clamp in traditional testing methods, resulting in low testing efficiency and poor yield.

[0005] To achieve the above objectives, this utility model proposes a flexible component mechanical testing fixture, comprising a first clamping plate and a second clamping plate rotatably connected, with a clamping area formed between the first clamping plate and the second clamping plate. The clamping area is suitable for placing a flexible component therein. A first positioning part is provided in the clamping area, the first positioning part having a positioning surface oriented towards a first direction. Second positioning parts are provided on opposite sides of the first clamping plate and the second clamping plate along a second direction outside the clamping area, wherein the first direction and the second direction are perpendicular to each other.

[0006] Optionally, the first positioning part includes a positioning protrusion disposed on the first clamping plate, the positioning protrusion extending along the second direction, the clamping area located on one side of the positioning protrusion, and the positioning surface formed on the positioning protrusion and facing the clamping area.

[0007] Optionally, the second positioning part includes two positioning bosses disposed on the first clamping plate. The two positioning bosses are disposed opposite to each other on both sides of the first clamping plate along the second direction, and the two positioning bosses are respectively disposed at both ends of the positioning protrusion.

[0008] Optionally, the first clamping plate includes a first rotating part, and a first clamping part and a first operating part respectively disposed on both sides of the first rotating part, and the first positioning part and the second positioning part are both disposed on the first clamping part;

[0009] The second clamping plate includes a second rotating part, and a second clamping part and a second operating part respectively disposed on both sides of the second rotating part, wherein the clamping area is formed between the second clamping part and the first clamping part;

[0010] The first rotating part and the second rotating part are rotatably connected, such that the first clamping part and the second clamping part have a clamping state that is close to each other and a decompression state that is far apart from each other.

[0011] Optionally, the flexible component mechanical testing fixture further includes a torsion spring, which is disposed at the connection between the first rotating part and the second rotating part;

[0012] When the first operating part and / or the second operating part are brought closer together by an external force, the torsion spring is in a torsional energy storage state, and the first clamping part and the second clamping part are in a decompression state; when the external force on the first operating part and / or the second operating part is removed, the first clamping part and the second clamping part can move closer together under the action of the torsional potential energy of the torsion spring to be in the clamping state.

[0013] Optionally, the second clamping part includes a clamping head and a transition section connecting the clamping head and the second rotating part. The clamping head and the first clamping part are disposed in close contact. At least a portion of the transition section is arc-shaped and spaced apart from the first clamping part.

[0014] Optionally, the clamping head is disposed in close contact with the positioning surface.

[0015] Optionally, a limiting boss is provided on the other side of the clamping head, and the limiting boss overlaps on the end face of the first clamping part opposite to the positioning surface.

[0016] Optionally, the first operating part is provided with a hanging part, and the second operating part is provided with a mating part. The hanging part and the mating part are engaged to keep the first clamping part and the second clamping part in the decompression state.

[0017] Optionally, the hanging part includes a hanging ring rotatably disposed on the first operating part, and the cooperating part includes a hook rotatably disposed on the second operating part, wherein the hook is hooked to the hanging ring such that the first clamping part and the second clamping part are arranged at a certain interval.

[0018] The technical solution provided by this utility model has the following beneficial effects:

[0019] The flexible component mechanical testing fixture provided by this utility model includes a first clamping plate and a second clamping plate, with a clamping area formed between the first clamping plate and the second clamping plate. A sample (such as a flexible component) can be placed in the clamping area and clamped and fixed by the first clamping plate and the second clamping plate. Furthermore, a first positioning part is provided in the clamping area, and the first positioning part has a positioning surface facing the first direction. When placing the sample, the axial side (one side in the length direction) of the sample can be placed against the positioning surface, thereby ensuring the position of the sample within the clamping area, thus ensuring the perpendicularity of the sample on the testing machine, and making the upper and lower ends of the sample more vertically aligned. Moreover, a second positioning part is provided outside the clamping area, located on both sides along the second direction outside the clamping area, i.e., at both ends of the sample's axial direction. This allows the upper and lower pneumatic chucks of the testing machine to be limited by the second positioning part, ensuring that the sample is better positioned in the middle of the upper and lower pneumatic chucks after clamping the sample, making the test results more accurate and reliable. Furthermore, when placing the sample, there is no need to manually and repeatedly adjust the sample position, resulting in higher testing efficiency. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 A schematic diagram of an embodiment of a flexible component mechanical testing fixture provided by this utility model;

[0022] Figure 2 for Figure 1 Another structural diagram of the flexible component mechanical testing fixture described above;

[0023] Figure 3 for Figure 1 An exploded view of the flexible component mechanical testing fixture described above;

[0024] Figure 4 for Figure 1A schematic diagram of the flexible component mechanical testing fixture (in the decompressed state) described above;

[0025] Figure 5 for Figure 1 The diagram shows the structure of the flexible component mechanical testing fixture (suitable for use on a testing machine) described in the article.

[0026] Explanation of icon numbers:

[0027] 100-Flexible component mechanical testing fixture; 1-First clamping plate; 11-First clamping part; 111-First positioning part; 1111-Positioning protrusion; 112-Second positioning part; 1121-Positioning boss; 12-First rotating part; 13-First operating part; 14-Hanging part; 141-Hanging ring; 2-Second clamping plate; 21-Second clamping part; 211-Clamping head; 2111-Limiting boss; 212-Transition section; 22-Second rotating part; 23-Second operating part; 24-Matching part; 241-Hook; 3-Torsion spring; 200-Upper pneumatic chuck; 300-Lower pneumatic chuck.

[0028] The realization of the purpose, functional characteristics and excellent effects of this utility model will be further explained below in conjunction with specific embodiments and accompanying drawings. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] It should be noted that if the embodiments of this utility model involve directional indication, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0031] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0032] This utility model provides a mechanical testing fixture 100 for flexible parts, which is suitable for clamping and fixing a sample (such as a flexible plate) so that the testing machine can perform a tensile test on the sample.

[0033] Specifically, please refer to Figure 1 and Figure 2 In this embodiment, the flexible component mechanical testing fixture 100 includes a first clamping plate 1 and a second clamping plate 2 rotatably connected. A clamping area is formed between the first clamping plate 1 and the second clamping plate 2. The clamping area is suitable for placing a flexible component therein. A first positioning part 111 is provided in the clamping area. The first positioning part 111 has a positioning surface facing a first direction. A second positioning part 112 is provided on both sides of the first clamping plate 1 and the second clamping plate 2 outside the clamping area along a second direction, which are perpendicular to the first direction and the second direction.

[0034] In this embodiment, a clamping area is formed between the first clamping plate 1 and the second clamping plate 2. A sample (such as a flexible component) can be placed within this clamping area and clamped and fixed by the first clamping plate 1 and the second clamping plate 2. Furthermore, a first positioning part 111 is provided within the clamping area, and the first positioning part 111 has a positioning surface facing the first direction. When placing the sample, the axial side (the side along the length direction) of the sample can be placed against the positioning surface, thereby ensuring the position of the sample within the clamping area, and thus ensuring the verticality of the sample on the testing machine. The straightness is improved, and the upper and lower ends of the sample are more vertically aligned. Furthermore, a second positioning part 112 is provided outside the clamping area. The second positioning part 112 is located on both sides of the clamping area along the second direction, that is, at both ends of the sample's axial direction. This allows the upper and lower pneumatic chucks 300 of the testing machine to be limited by the second positioning part 112, ensuring that the sample is better positioned in the middle of the upper and lower pneumatic chucks 300 after clamping the sample, making the test results more accurate and reliable. Moreover, when placing the sample, there is no need to manually adjust the position of the sample repeatedly, and the testing efficiency is also higher.

[0035] It should be noted that, in combination Figure 5 As shown, during tensile testing using the testing machine, the upper pneumatic chuck 200 and lower pneumatic chuck 300 of the testing machine are arranged opposite each other in the vertical direction. During testing, the specimen needs to be placed vertically between the upper pneumatic chuck 200 and lower pneumatic chuck 300 in the vertical direction, so that the upper pneumatic chuck 200 and lower pneumatic chuck 300 can better clamp the specimen at both ends of the axial direction (i.e., both ends of the specimen's length direction). It can be understood that the first positioning part 111 and the second positioning part 112 can be disposed on the first clamping plate 1 and / or the second clamping plate 2, wherein the first direction can refer to the horizontal direction of the testing machine, and the second direction refers to the vertical direction of the testing machine. The first positioning part 111 can form a horizontal position for the sample, which makes the alignment of the sample with the upper and lower pneumatic chucks 300 better. The second positioning part 112 can restrict the clamping position of the upper and lower pneumatic chucks 300, thereby making the clamping position of the upper pneumatic chuck 200 and lower pneumatic chuck 300 of the testing machine more accurate and the sample loading efficiency higher. As a result, the testing efficiency of the testing machine is higher and the test results are more accurate.

[0036] Preferably, such as Figure 3As shown, the first positioning part 111 includes a positioning protrusion 1111 disposed on the first clamping plate 1. The positioning protrusion 1111 extends along the second direction. The clamping area is located on one side of the positioning protrusion 1111. The positioning surface is formed on the positioning protrusion 1111 and faces the clamping area. The first clamping plate 1 is generally flat. The positioning protrusion 1111 protrudes from the side of the first clamping plate 1 facing the second clamping plate 2, so that when the sample is placed in the clamping area, by aligning the long side of the sample with the positioning surface of the positioning protrusion 1111, the position of the sample in the clamping area can be restricted, so that when the tensile test is performed, the sample is aligned with the upper pneumatic chuck 200 and the lower pneumatic chuck 300 in the vertical direction.

[0037] Furthermore, combined Figure 2 and Figure 4 As shown, the second positioning part 112 includes two positioning protrusions 1121 disposed on the first clamping plate 1. The two positioning protrusions 1121 are disposed opposite to each other on both sides of the first clamping plate 1 along the second direction, and the two positioning protrusions 1121 are respectively disposed at both ends of the positioning protrusion 1111. The two positioning protrusions 1121 are respectively provided on both sides of the first clamping plate 1 in the vertical direction. When the upper pneumatic chuck 200 and the lower pneumatic chuck 300 clamp the sample, the upper pneumatic chuck 200 can be moved to abut against the upper end of the first clamping plate 1 and fit against the positioning protrusion 1121 at the upper end, and the lower pneumatic chuck 300 can be moved to abut against the lower end of the first clamping plate 1 and fit against the positioning protrusion 1121 at the lower end. This ensures better alignment of the upper pneumatic chuck 200 and the lower pneumatic chuck 300, and the sample can be better clamped in the middle of the upper pneumatic chuck 200 and the lower pneumatic chuck 300, thus ensuring the accuracy of the sample position.

[0038] For the first clamping plate 1, combined Figure 2 and Figure 3 As shown, the first clamping plate 1 includes a first rotating part 12, and a first clamping part 11 and a first operating part 13 respectively disposed on both sides of the first rotating part 12. The first positioning part 111 and the second positioning part 112 are both disposed on the first clamping part 11. When an external force is applied to the first operating part 13, the first clamping part 11 can be driven to rotate.

[0039] Similarly, for the second clamping plate 2, in combination Figure 2 and Figure 3As shown, the second clamping plate 2 includes a second rotating part 22, and a second clamping part 21 and a second operating part 23 respectively disposed on both sides of the second rotating part 22. The clamping area is formed between the second clamping part 21 and the first clamping part 11. The first rotating part 12 and the second rotating part 22 are rotatably connected, such that the first clamping part 11 and the second clamping part 21 have a clamping state that is close to each other and a decompression state that is far apart from each other. Specifically, a first rotating hole is provided on the first rotating part 12, and a second rotating hole is provided on the second rotating part 22. The flexible component mechanical testing fixture 100 also includes a rotating shaft, which passes through the first rotating hole and the second rotating hole, so that the first clamping plate 1 can rotate relative to the second clamping plate 2. Furthermore, when an external force is applied to the first operating part 13 and the second operating part 23, when the first operating part 13 and the second operating part 23 approach each other, the first clamping part 11 and the second clamping part 21 move away from each other to release the sample; when the first operating part 13 and the second operating part 23 move away from each other, the first clamping part 11 and the second clamping part 21 can approach each other to clamp the sample.

[0040] Moreover, such as Figure 2 and Figure 3 As shown, the flexible component mechanical testing fixture 100 also includes a torsion spring 3, which is disposed at the connection between the first rotating part 12 and the second rotating part 22. When the first operating part 13 and / or the second operating part 23 are brought closer to each other by an external force, the torsion spring 3 is in a torsional energy storage state, and the first clamping part 11 and the second clamping part 21 are in a decompression state. When the external force on the first operating part 13 and / or the second operating part 23 is removed, the first clamping part 11 and the second clamping part 21 can move closer to each other under the action of the torsional potential energy of the torsion spring 3 to be in the clamping state. For example, the first operating part 13 and the second operating part 23 can be manually pressed simultaneously to bring them closer together, while the first clamping part 11 and the second clamping part 21 move away from each other, thus being in a decompressed state. After the sample is placed in, the operator can release the pressure, and under the action of the torsion spring 3, the first clamping part 11 and the second clamping part 21 can move closer together to be in a clamping state, automatically clamping and fixing the sample, making the operation more labor-saving and convenient.

[0041] Since the flexible component is relatively soft and easily deformable, the area of ​​the clamping region should be relatively large to ensure more stable clamping of the sample. Preferably, the second clamping part 21 includes a clamping head 211 and a transition section 212 connecting the clamping head 211 and the second rotating part 22. The clamping head 211 and the first clamping part 11 are fitted together, and at least a portion of the transition section 212 is arc-shaped and spaced apart from the first clamping part 11. This allows the clamping head 211 to better fit the first clamping part 11, resulting in better clamping of the sample.

[0042] Preferably, the clamping head 211 is fitted to the positioning surface to better define the position of the clamping head 211 pressing against the first clamping part 11.

[0043] Moreover, such as Figure 3 As shown, a limiting boss 2111 is provided on the other side of the clamping head 211. The limiting boss 2111 overlaps the end face of the first clamping part 11 opposite to the positioning surface to cover the first clamping part 11, so that the clamping head 211 can better fit with the first clamping part 11 while limiting the relative position of the clamping head 211 and the first clamping part 11.

[0044] In one embodiment, a hanging part 14 is provided on the first operating part 13, and a mating part 24 is provided on the second operating part 23. The hanging part 14 and the mating part 24 are hooked and mated together to keep the first clamping part 11 and the second clamping part 21 in the decompressed state, so that no force needs to be applied to the first operating part 13 and the second operating part 23, making it easier to place the sample.

[0045] Preferably, combined with Figures 2 to 4 As shown, the hanging part 14 includes a hanging ring 141 rotatably mounted on the first operating part 13, and the cooperating part 24 includes a hook 241 rotatably mounted on the second operating part 23. The hook 241 is hooked and engaged with the hanging ring 141, such that the first clamping part 11 and the second clamping part 21 are arranged at a certain interval. The hanging ring 141 is generally U-shaped, and the hook 241 includes a U-shaped connecting arm and a hook portion provided on the connecting arm. Since both the hanging ring 141 and the hook 241 can rotate, the hanging ring 141 can easily be engaged with and unlocked from the hook 241, thus making operation more convenient.

[0046] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structure made using the contents of the present utility model specification and drawings, or directly or indirectly applied to other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A mechanical testing fixture for flexible components, characterized in that, The device includes a first clamping plate and a second clamping plate that are rotatably connected, with a clamping area formed between the first clamping plate and the second clamping plate, the clamping area being suitable for placing a flexible component. The clamping area is provided with a first positioning part, the first positioning part having a positioning surface facing a first direction, and the first clamping plate and the second clamping plate are provided with second positioning parts on opposite sides of the clamping area along a second direction, wherein the first direction and the second direction are perpendicular to each other.

2. The flexible component mechanical testing fixture as described in claim 1, characterized in that, The first positioning part includes a positioning protrusion disposed on the first clamping plate. The positioning protrusion extends along the second direction. The clamping area is located on one side of the positioning protrusion. The positioning surface is formed on the positioning protrusion and is disposed towards the clamping area.

3. The flexible component mechanical testing fixture as described in claim 2, characterized in that, The second positioning part includes two positioning bosses disposed on the first clamping plate. The two positioning bosses are disposed opposite to each other on both sides of the first clamping plate along the second direction, and the two positioning bosses are respectively disposed at both ends of the positioning protrusion.

4. The flexible component mechanical testing fixture as described in claim 1, characterized in that, The first clamping plate includes a first rotating part, and a first clamping part and a first operating part respectively disposed on both sides of the first rotating part. The first positioning part and the second positioning part are both disposed on the first clamping part. The second clamping plate includes a second rotating part, and a second clamping part and a second operating part respectively disposed on both sides of the second rotating part, wherein the clamping area is formed between the second clamping part and the first clamping part; The first rotating part and the second rotating part are rotatably connected, such that the first clamping part and the second clamping part have a clamping state that is close to each other and a decompression state that is far apart from each other.

5. The flexible component mechanical testing fixture as described in claim 4, characterized in that, The flexible component mechanical testing fixture also includes a torsion spring, which is disposed at the connection between the first rotating part and the second rotating part; When the first operating part and / or the second operating part are brought closer together by an external force, the torsion spring is in a torsional energy storage state, and the first clamping part and the second clamping part are in a decompression state; when the external force on the first operating part and / or the second operating part is removed, the first clamping part and the second clamping part can move closer together under the action of the torsional potential energy of the torsion spring to be in the clamping state.

6. The flexible component mechanical testing fixture as described in claim 4, characterized in that, The second clamping part includes a clamping head and a transition section connecting the clamping head and the second rotating part. The clamping head and the first clamping part are disposed in close contact. At least a portion of the transition section is arc-shaped and spaced apart from the first clamping part.

7. The flexible component mechanical testing fixture as described in claim 6, characterized in that, The clamping head is fitted to the positioning surface.

8. The flexible component mechanical testing fixture as described in claim 6, characterized in that, A limiting boss is provided on the other side of the clamping head, and the limiting boss overlaps on the end face of the first clamping part opposite to the positioning surface.

9. The flexible component mechanical testing fixture as described in claim 4, characterized in that, The first operating part is provided with a hanging part, and the second operating part is provided with a cooperating part. The hanging part and the cooperating part are engaged to keep the first clamping part and the second clamping part in the decompression state.

10. The flexible component mechanical testing fixture as described in claim 9, characterized in that, The hanging part includes a hanging ring rotatably disposed on the first operating part, and the cooperating part includes a hook rotatably disposed on the second operating part. The hook and the hanging ring are hooked and cooperated with each other, so that the first clamping part and the second clamping part are arranged at a certain interval.

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