Graphene material detection equipment

Abstract

The invention discloses graphene material detection equipment, and belongs to the technical field of material detection, and the graphene material detection equipment is characterized by comprising a base, a first bracket, a second bracket, a clamping device, a horizontal moving device, a pulling device, a calibration device and a positioning device. The clamping device is used for clamping the two ends of a film, the horizontal moving device achieves horizontal movement of the first clamping assembly, the pulling device pulls the first clamping assembly and detects the tensile force of the film, the calibration device can calibrate equipment, and the positioning device assists in positioning, so that the graphene material can be effectively detected, and the tensile force borne by the film can be accurately detected; and the equipment can be calibrated, so that the accuracy of a detection result is ensured.

Description

Technical Field

[0001] This application relates to the field of materials testing technology, and in particular to a testing device for graphene materials. Background Technology

[0002] In the field of materials science, the research and application of novel materials has always been a crucial driving force for technological progress. Graphene, as a promising new material that has garnered significant attention in recent years, demonstrates immense application potential in numerous fields such as electronics, energy, and composite materials due to its unique physical and chemical properties, including high electrical conductivity and high mechanical strength. Accurate testing of graphene material properties can provide crucial data for its research, development, production, and application, helping to improve product quality, optimize production processes, and thus promote the rapid development of related industries. Simultaneously, accurate testing results can lay the foundation for the application of graphene materials in more fields, promoting interdisciplinary technological integration and innovation.

[0003] There are various conventional methods for testing the properties of graphene materials. For testing the mechanical properties of materials, a common approach is to use clamps to fix both ends of the material and apply tension using a motor-driven screw or hydraulic system to test the tensile strength and elongation at break. Some testing equipment uses strain gauge sensors to measure the tensile force, which can be converted into an electrical signal for recording and analysis. Other testing equipment utilizes complex mechanical transmission mechanisms, such as gears and chains, to achieve uniform tensile testing of the material, thereby obtaining more stable test data.

[0004] However, existing graphene material testing equipment lacks effective calibration methods, resulting in low accuracy in tensile testing and difficulty in accurately reflecting the true mechanical properties of graphene materials. Summary of the Invention

[0005] To improve the accuracy of tensile strength testing of graphene films, this invention provides a testing device for graphene materials.

[0006] The graphene material detection device provided by this invention adopts the following technical solution: A graphene material detection device includes a base, wherein the base is connected to a first support and a second support. The clamping device includes a first clamping assembly and a second clamping assembly. The first clamping assembly is connected to the first bracket and is used to clamp one end of the film. The second clamping assembly is connected to the second bracket and is used to clamp the other end of the film. A horizontal moving device is disposed between the first bracket and the first clamping assembly, and is connected to both the first bracket and the first clamping assembly, for realizing the horizontal movement of the first clamping assembly; A pulling device includes a pulling cylinder, a fixed plate, and a tension detector. The pulling cylinder is connected to the base, the fixed plate is connected to the drive shaft of the pulling cylinder, one end of the tension detector is connected to the fixed plate, and the other end is connected to the first clamping assembly. The device is used to pull the first clamping assembly to move while detecting the tension force on the film. The calibration device includes a lifting cylinder, a fixed frame, a first force measuring element, a first slider, a second force measuring element, a second slider, and a calibration plate. The lifting cylinder is connected to the base, and the fixed frame is connected to the lifting cylinder. One end of the first force measuring element is connected to the fixed frame, and the other end is fixedly connected to the first slider. One end of the second force measuring element is connected to the fixed frame, and the other end is fixedly connected to the second slider. Both the first and second sliders are slidably connected to the fixed frame. The calibration plate is fixedly connected to the first clamping assembly. The first and second sliders can selectively abut against the calibration plate. When both the first and second sliders abut against the calibration plate, the first and second sliders are located on opposite sides of the calibration plate. If the readings of the first force measuring element, the second force measuring element, and the tensile detector are all within a preset range, then the tensile detector is accurate.

[0007] By adopting the above technical solution, when using the graphene material testing equipment, both ends of the film are clamped by the first clamping assembly and the second clamping assembly, respectively. When the tensile tester needs to be calibrated, the first clamping assembly is moved horizontally using a horizontal moving device, keeping the portion of the film between the first and second clamping assemblies horizontally straight. The lifting cylinder drives the fixed frame to rise and fall, causing the first and second sliders to abut against the calibration plate. When the first and second sliders are respectively located on both sides of the calibration plate, and when the readings of the first force measuring element, the second force measuring element, and the tensile tester are all within the preset range, the accuracy of the tensile test is ensured. The pulling cylinder of the pulling device drives the fixed plate, which in turn pulls the first clamping assembly to move through the tensile tester, simultaneously detecting the tensile force on the film, thus realizing the tensile test of the film.

[0008] Preferably, the first support includes a first vertical plate and a second vertical plate, both of which are connected to the base and are parallel to each other. The horizontal moving device includes a first movable groove, a first roller, a second movable groove, and a second roller. The first movable groove is formed on the first vertical plate, and the first roller is disposed in the first movable groove and rolls against the first vertical plate. The second movable groove is formed on the second vertical plate, and the second roller is disposed in the second movable groove and rolls against the second vertical plate. The first roller and the second roller are respectively disposed on both sides of the first clamping assembly and connected to the first clamping assembly.

[0009] By adopting the above technical solution, the first vertical plate and the second vertical plate are connected to the base and are parallel to each other, providing stable support for the horizontal moving device and the first clamping assembly; the first roller rolls and abuts in the first movable groove and the second roller rolls and abuts in the second movable groove, which allows the first clamping assembly to move smoothly in the horizontal direction, making it easier to adjust the position to better clamp the film.

[0010] Preferably, it further includes a positioning device, which includes a positioning component and a driving component. The positioning component includes a base plate, a positioning cylinder, and a positioning rod. The base plate is slidably connected to the base. The driving component is connected to the base and is used to drive the base plate to slide. The pulling device is connected to the base plate. The positioning cylinder is connected to the base plate. The bottom end of the positioning rod is connected to the drive shaft of the positioning cylinder, and the top end can selectively abut against the side of the horizontal moving device away from the tension detector. When the horizontal moving device abuts against the corresponding positioning rod, it is used to align the calibration plate with the gap between the first slider and the second slider.

[0011] By adopting the above technical solution, when the calibration device calibrates the tensile detector, it is first necessary to position the initial position of the first clamping assembly to facilitate the cooperation of the first slider, the second slider, and the calibration plate. The pulling device is located on the base plate, so the positioning rod and the pulling device move synchronously with the base plate. The positioning device is adjusted to the preset position, that is, the positioning rod is in contact with the side of the horizontal moving device away from the tensile detector. Then, the lifting cylinder is activated to make the first slider and the second slider contact the two sides of the calibration plate. Subsequently, the positioning cylinder is activated to move the positioning rod away from the horizontal moving device. If the readings of the first force measuring component, the second force measuring component, and the tensile detector are within the preset range, then the tensile detector is accurate.

[0012] Preferably, the positioning rod extends into the first movable groove, the positioning rod is slidably connected to the first vertical plate, and the positioning rod may optionally abut against the first roller.

[0013] By adopting the above technical solution, in the graphene material testing equipment, the first roller can abut against the positioning rod, which can position the first clamping component, facilitate the calibration of the tensile detector reading, and improve the accuracy and stability of the testing equipment for graphene materials.

[0014] Preferably, the drive assembly includes a motor, a lead screw, and a guide rod. The motor is connected to the base, the lead screw and the guide rod are arranged in parallel, both ends of the lead screw are rotatably connected to the base, the motor is connected to one end of the lead screw, both ends of the guide rod are connected to the base, and a base plate is sleeved on the lead screw and the guide rod. The base plate is threadedly connected to the lead screw and slidably connected to the guide rod.

[0015] By adopting the above technical solution, the rotation of the lead screw is driven by a motor. The base plate, which is threaded to the lead screw and sleeved on the guide rod, can be converted into linear sliding of the base plate. This drives the base plate of the positioning device to slide, thereby adjusting the position of the positioning rod and the pulling device. It also makes the horizontal moving device abut against the positioning rod, which helps to calibrate the reading of the tension detector and ensures the accuracy of the detection equipment for graphene materials. The equipment adopts a lead screw and guide rod structure, which ensures smooth movement and high precision.

[0016] Preferably, the first slider has a first inclined surface at its top, and the second slider has a second inclined surface at its top. The first inclined surface and the second inclined surface have opposite inclination directions, and both are inclined towards each other from top to bottom.

[0017] By adopting the above technical solution, the top of the first slider and the second slider are provided with inclined surfaces in opposite directions and inclined towards each other from top to bottom. This makes it easier for the first slider and the second slider to fit and calibrate when they come into contact with the calibration plate, improving the convenience and accuracy of calibration. This helps to accurately calibrate the tensile detector reading to zero and ensures the accuracy of the tensile data of graphene materials detected by the testing equipment.

[0018] Preferably, both the first force measuring element and the second force measuring element are bidirectional elastic force gauges.

[0019] By adopting the above technical solution and using a bidirectional elastic force gauge as the first and second force measuring components, the forward and reverse elastic forces can be accurately measured, providing more accurate readings for calibrating the tensile tester and improving the detection accuracy of graphene material detection equipment.

[0020] Preferably, the first clamping assembly includes a mounting frame, a first clamping plate, a second clamping plate, and an adjusting rod. One end of the mounting frame is connected to the first roller, and the other end is connected to the second roller. The first clamping plate is connected to the mounting frame, the second clamping plate is slidably connected to the mounting frame, the adjusting rod passes through the mounting frame and is threadedly connected to the mounting frame, and the second clamping plate is rotatably connected to the adjusting rod.

[0021] By adopting the above technical solution, during use, the adjustable rod can be rotated. Since the adjustable rod is threadedly connected to the mounting frame and the second clamping plate is rotatably connected to the adjustable rod, the rotation of the adjustable rod causes the second clamping plate to slide on the mounting frame, thereby achieving clamping of one end of the film by the first and second clamping plates. Simultaneously, the mounting frame can move horizontally via the first and second rollers, facilitating subsequent testing operations. Furthermore, the calibration plate is connected to the bottom of the mounting frame, allowing for calibration of the testing equipment in conjunction with a calibration device, ensuring the accuracy of the testing.

[0022] Preferably, the mounting bracket is connected with a first protrusion and a second protrusion, the first protrusion being slidably connected to the first vertical plate, and the second protrusion being slidably connected to the second vertical plate.

[0023] By adopting the above technical solution, the mounting frame is slidably connected to the first vertical plate via the first protrusion and to the second vertical plate via the second protrusion, which makes the first clamping component more stable and smooth when moving horizontally, avoiding shaking or displacement, ensuring the stability of the clamping and pulling process of the film, and improving the reliability of the testing equipment and the accuracy of the testing results.

[0024] Preferably, the second clamping assembly includes a fixed clamping plate, a movable clamping plate, and a screw. The fixed clamping plate is fixedly connected to the second bracket, the movable clamping plate is slidably connected to the second bracket, the screw passes through the second bracket and is rotatably connected to the movable clamping plate, the screw is threadedly connected to the second bracket, and a handle is connected to the end of the screw away from the movable clamping plate.

[0025] By adopting the above technical solution, the screw can be rotated by turning the handle, thereby causing the moving clamp to slide on the second support, thus achieving stable clamping of the other end of the film.

[0026] In summary, the present invention has the following beneficial effects: 1. When using this graphene material testing equipment, the two ends of the film are clamped by the first clamping assembly and the second clamping assembly, respectively. When the tensile tester needs to be calibrated, the first clamping assembly is moved horizontally using a horizontal moving device, keeping the portion of the film between the first and second clamping assemblies horizontally straight. The lifting cylinder drives the fixed frame to rise and fall, causing the first and second sliders to abut against the calibration plate. When the first and second sliders are respectively located on both sides of the calibration plate, and when the readings of the first force measuring element, the second force measuring element, and the tensile tester are all within the preset range, the accuracy of the tensile test is ensured. The pulling cylinder of the pulling device drives the fixed plate, which in turn pulls the first clamping assembly to move through the tensile tester, while simultaneously detecting the tensile force on the film, thus realizing the tensile test of the film. 2. The positioning device can assist in calibration, facilitate the coordination of the first slider, the second slider and the calibration plate, and further ensure the accuracy of the test. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of a graphene material detection device.

[0028] Figure 2 This is a schematic diagram of the horizontal moving device.

[0029] Figure 3 This is a schematic diagram of the pulling device.

[0030] Figure 4 This is a schematic diagram of the calibration device.

[0031] Figure 5 It refers to the positional relationship between the positioning rod and the roller.

[0032] Explanation of reference numerals in the attached figures: 1. Base; 2. First support; 21. First vertical plate; 22. Second vertical plate; 3. Second support; 4. Clamping device; 41. First clamping assembly; 411. Mounting bracket; 4111. First protrusion; 4112. Second protrusion; 412. First clamping plate; 413. Second clamping plate; 414. Adjusting rod; 42. Second clamping assembly; 421. Fixed clamping plate; 422. Moving clamping plate; 423. Screw; 5. Horizontal moving device; 51. First movable groove; 52. First roller; 53. Second movable groove; 54. Second roller 6. Wheel; 7. Pulling device; 61. Pulling cylinder; 62. Fixing plate; 63. Tension detector; 7. Calibration device; 71. Lifting cylinder; 72. Fixing frame; 73. First force measuring component; 74. First slider; 741. First inclined plane; 75. Second force measuring component; 76. Second slider; 761. Second inclined plane; 77. Calibration plate; 8. Positioning device; 81. Positioning assembly; 811. Base plate; 812. Positioning cylinder; 813. Positioning rod; 82. Drive assembly; 821. Motor; 822. Lead screw; 823. Guide rod. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0034] In the description of the embodiments of this application, the words "for example" or "for instance" are used to indicate examples, illustrations, or explanations. Any embodiment or design that is described as "for example" or "for instance" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design options. Rather, the use of the words "for example" or "for instance" is intended to present the relevant concepts in a specific manner.

[0035] In the description of the embodiments of this application, the term "multiple" means two or more. For example, multiple systems means two or more systems, and multiple screen terminals means two or more screen terminals. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. The terms "comprising," "including," "having," and variations thereof all mean "including but not limited to," unless otherwise specifically emphasized.

[0036] A detection device for graphene materials, referring to Figure 1 and Figure 2 The system includes a base 1, a first support 2, a second support 3, a clamping device 4, a horizontal moving device 5, a pulling device 6, and a calibration device 7. Both the first support 2 and the second support 3 are connected to the base 1. Let the length direction of the base 1 be a first direction a, and the first support 2 and the second support 3 be spaced apart along the first direction a. The clamping device 4 includes a first clamping assembly 41 and a second clamping assembly 42. The first clamping assembly 41 is connected to the first support 2, and the second clamping assembly 42 is connected to the second support 3. Together, they clamp both ends of the film to ensure the stability of the film during the testing process. The horizontal moving device 5 is located between the first support 2 and the first clamping assembly 41, and is connected to both, enabling the first clamping assembly 41 to move horizontally.

[0037] Reference Figure 1 and Figure 3 The pulling device 6 includes a pulling cylinder 61, a fixing plate 62, and a tension detector 63. The pulling cylinder 61 is connected to the base 1, and the fixing plate 62 is connected to the drive shaft of the pulling cylinder 61. One end of the tension detector 63 is connected to the second clamping plate 413, and the other end is connected to the first clamping assembly 41. When the pulling cylinder 61 drives the fixing plate 62 to move, the tension detector 63 can detect the tension on the film in real time. The calibration device 7 is connected to the base 1 and also to the first clamping assembly 41, and is used to calibrate the tension detector 63.

[0038] When the tensile detector 63 needs to be calibrated, the first clamping assembly 41 is moved horizontally using the horizontal moving device 5, so that the portion between the first clamping assembly 41 and the second clamping assembly 42 of the film is kept horizontally straight. The calibration device 7 is used to calibrate and ensure the accuracy of the tensile detection.

[0039] Reference Figure 1The first support 2 includes a first vertical plate 21 and a second vertical plate 22. The first vertical plate 21 and the second vertical plate 22 are arranged in parallel and spaced apart. The first vertical plate 21 and the second vertical plate 22 are respectively located on both sides of the first direction a. The first clamping assembly 41 is located between the first vertical plate 21 and the second vertical plate 22.

[0040] Reference Figure 2 and Figure 3 The first clamping assembly 41 includes a mounting frame 411, a first clamping plate 412, a second clamping plate 413, and an adjusting rod 414. The mounting frame 411 is U-shaped with its opening facing downwards. The middle part of the mounting frame 411 is fixedly connected to the tension detector 63. The first clamping plate 412 and the second clamping plate 413 are both horizontally arranged. The first clamping plate 412 is fixedly connected to the bottom end of the mounting frame 411. The second clamping plate 413 is located in the hollow part of the mounting frame 411 and slides against the inner wall of the mounting frame 411. One end of the adjusting rod 414 passes through the mounting frame 411 and is rotatably connected to the second clamping plate 413. The adjusting rod 414 is threadedly connected to the mounting frame 411.

[0041] By rotating the adjusting rod 414, the second clamping plate 413 can be moved relative to the first clamping plate 412, thereby achieving the clamping and releasing operation of the film. In some cases, the adjusting rod 414 can also be driven by an electric push rod or other means to improve the convenience of operation. The sidewalls of the first clamping plate 412 and the second clamping plate 413 that are close to each other can be made of corrugated surface to increase the friction on the film.

[0042] Reference Figure 2 The horizontal moving device 5 includes a first movable groove 51, a first roller 52, a second movable groove 53, and a second roller 54. The first movable groove 51 is formed on the side wall of the first vertical plate 21 near the second vertical plate 22, and the second movable groove 53 is formed on the side wall of the second vertical plate 22 near the first vertical plate 21. The length directions of both the first movable groove 51 and the second movable groove 53 are parallel to the first direction a. The first roller 52 and the second roller 54 are both rotatably connected to the mounting frame 411. The first roller 52 is located in the first movable groove 51 and rolls against the first vertical plate 21. The second roller 54 is located in the second movable groove 53 and rolls against the second vertical plate 22. This enables the first clamping assembly 41 to move horizontally.

[0043] The first movable groove 51 and the second movable groove 53 can be rectangular grooves formed on the vertical plate, with a width slightly larger than the diameter of the roller to ensure that the roller can roll freely within the groove. The first roller 52 and the second roller 54 can be bearing rollers, which have low rolling resistance and enable smooth movement of the first clamping assembly 41.

[0044] Reference Figure 2The mounting bracket 411 has a first protrusion 4111 and a second protrusion 4112 fixedly connected to both sides. The first protrusion 4111 is slidably connected to the first vertical plate 21, and the second protrusion 4112 is slidably connected to the second vertical plate 22. This can ensure the stability and accuracy of the first clamping assembly 41 when it moves horizontally.

[0045] Reference Figure 1 and Figure 4 The calibration device 7 includes a lifting cylinder 71, a fixed frame 72, a first force measuring element 73, a first slider 74, a second force measuring element 75, a second slider 76, and a calibration plate 77. The lifting cylinder 71 is connected to the base 1, and the fixed frame 72 is U-shaped with its opening facing upward. The bottom of the fixed frame 72 is fixedly connected to the drive shaft of the lifting cylinder 71.

[0046] Reference Figure 4 The first force measuring element 73 and the second force measuring element 75 are both located in the hollow portion of the fixed frame 72. One end of the first force measuring element 73 is fixedly connected to the first end of the fixed frame 72, and the other end is fixedly connected to the first slider 74. One end of the second force measuring element 75 is fixedly connected to the second end of the fixed frame 72, and the other end is fixedly connected to the second slider 76. Both the first force measuring element 73 and the second force measuring element 75 are bidirectional force gauges, which can measure forces in two directions and have high accuracy and sensitivity. The length direction of both the first force measuring element 73 and the second force measuring element 75 is parallel to the first direction a.

[0047] Reference Figure 2 and Figure 4 The calibration plate 77 is fixedly connected to the bottom of the first clamping plate 412, and the bottom of the calibration plate 77 is curved. The first slider 74 and the second slider 76 are both slidably connected to the fixing frame 72. The first slider 74 and the second slider 76 can selectively abut against the calibration plate 77. When the first slider 74 and the second slider 76 are away from the calibration plate 77, the distance between the first slider 74 and the second slider 76 is less than the thickness of the calibration plate 77. When the first slider 74 and the second slider 76 are both abutting against the calibration plate 77, the first slider 74 and the second slider 76 abut against the two sides of the calibration plate 77 respectively.

[0048] When the lifting cylinder 71 drives the fixed frame 72 to rise, the first slider 74 and the second slider 76 can abut against the calibration plate 77. The calibration force is measured by the first force measuring element 73 and the second force measuring element 75, thereby calibrating the tensile detector 63. When the values ​​of the first force measuring element 73, the second force measuring element 75, and the tensile detector 63 are the same or within the error range, the tensile detector 63 is calibrated, improving the accuracy of tensile force detection.

[0049] Reference Figure 4The top of the first slider 74 is provided with a first inclined surface 741, and the top of the second slider 76 is provided with a second inclined surface 761. The first inclined surface 741 and the second inclined surface 761 are inclined in opposite directions, and they are inclined towards each other from top to bottom.

[0050] Reference Figure 3 and Figure 4 The system also includes a positioning device 8, which comprises a positioning assembly 81 and a drive assembly 82. The positioning assembly 81 includes a base plate 811, positioning cylinders 812, and positioning rods 813. The base plate 811 is connected to the drive assembly 82, which is connected to the base 1. The drive assembly 82 drives the base plate 811 to move. Two positioning cylinders 812 are provided, both fixedly connected to the base plate 811, and are respectively located at both ends of the base plate 811 perpendicular to the first direction a. Two positioning rods 813 are provided, each corresponding to one of the positioning cylinders 812.

[0051] Reference Figure 3 and Figure 5 The positioning rod 813 includes a vertical part and a horizontal part, which are integrally formed with the vertical part. The vertical part is fixedly connected to the corresponding positioning cylinder 812. The two positioning rods 813 correspond one-to-one with the first movable groove 51 and the second movable groove 53, respectively, and the horizontal part of the positioning rod 813 extends into the corresponding movable groove. The roller can selectively abut against the corresponding positioning rod 813.

[0052] The positioning rod 813 and the pulling device 6 move synchronously with the base plate 811. The positioning device 8 is adjusted to reach the preset position, that is, the positioning rod 813 is in contact with the side of the horizontal moving device 5 away from the tension detector 63. Then the lifting cylinder 71 is activated so that the first slider 74 and the second slider 76 are in contact with the two sides of the calibration plate 77. Then the positioning cylinder 812 is activated so that the positioning rod 813 is away from the horizontal moving device 5. If the readings of the first force measuring element 73, the second force measuring element 75 and the tension detector 63 are within the preset range, then the tension detector 63 is accurate.

[0053] Reference Figure 2 and Figure 4 The base plate 811 is located between the calibration device 7 and the base 1, and the lifting cylinder 71 is fixedly connected to the base plate 811. The pulling cylinder 61 is fixedly connected to the top of the base plate 811.

[0054] Reference Figure 4 The drive assembly 82 includes a motor 821, a lead screw 822, and a guide rod 823. The motor 821 is fixedly connected to the base 1. The lead screw 822 and the guide rod 823 are both horizontally arranged and parallel to the first direction a. A base plate 811 is sleeved on the lead screw 822 and the guide rod. The base plate 811 is threadedly connected to the lead screw 822 and slidably connected to the guide rod 823.

[0055] Reference Figure 1 The second support 3 is U-shaped with its opening facing downwards, and the second clamping assembly 42 is disposed in the hollow part of the second support 3. The second clamping assembly 42 and the first clamping assembly 41 are arranged along the first direction a.

[0056] Reference Figure 1 The second clamping assembly 42 includes a fixed clamping plate 421, a movable clamping plate 422, and a screw 423. Both the fixed clamping plate 421 and the movable clamping plate 422 are horizontally arranged. The fixed clamping plate 421 is fixedly connected to the second bracket 3, and the movable clamping plate 422 is slidably connected to the second bracket 3. The screw 423 passes through the second bracket 3 and is rotatably connected to the movable clamping plate 422. The screw 423 is threadedly connected to the second bracket 3, and a handle is connected to the end of the screw 423 away from the movable clamping plate 422.

[0057] By rotating the handle, the screw 423 can be rotated, thereby moving the movable clamping plate 422 relative to the fixed clamping plate 421, thus clamping and releasing the other end of the film. The sidewalls of the fixed clamping plate 421 and the movable clamping plate 422 that are close to each other can be corrugated to increase the friction on the film.

[0058] The operating principle of this application is as follows: The testing equipment provides a stable support structure through the base 1, the first bracket 2, and the second bracket 3. The clamping device 4 can firmly clamp both ends of the graphene film. The horizontal moving device 5 can adjust the horizontal position of the first clamping component 41 for better alignment of the film. The pulling device 6 provides pulling force through the pulling cylinder 61, and the tensile force detector 63 detects the tensile force on the film in real time. The calibration device 7 can calibrate the tensile force detection system before testing. The lifting cylinder 71 drives the fixing frame 72 to rise, so that the first slider 74 and the second slider 76 abut against the calibration plate 77. The calibration force is measured by the first force measuring element 73 and the second force measuring element 75 to ensure the accuracy of the tensile force detector 63. In this way, the equipment can effectively improve the accuracy of tensile force testing of graphene materials, accurately reflect the true mechanical properties of graphene materials, overcome the problem of the lack of effective calibration methods in existing testing equipment, and provide a more reliable testing basis for the research, development, production, and application of graphene materials.

[0059] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A detection device for graphene materials, characterized in that: Includes a base (1), the base (1) being connected to a first bracket (2) and a second bracket (3); The clamping device (4) includes a first clamping component (41) and a second clamping component (42). The first clamping component (41) is connected to the first bracket (2) and is used to clamp one end of the film. The second clamping component (42) is connected to the second bracket (3) and is used to clamp the other end of the film. A horizontal moving device (5) is disposed between the first support (2) and the first clamping assembly (41), and is connected to both the first support (2) and the first clamping assembly (41) to realize the horizontal movement of the first clamping assembly (41); The pulling device (6) includes a pulling cylinder (61), a fixing plate (62), and a tension detector (63). The pulling cylinder (61) is connected to the base (1), the fixing plate (62) is connected to the drive shaft of the pulling cylinder (61), one end of the tension detector (63) is connected to the fixing plate (62), and the other end is connected to the first clamping assembly (41). It is used to pull the first clamping assembly (41) to move and detect the tension force on the film. The calibration device (7) includes a lifting cylinder (71), a fixed frame (72), a first force measuring element (73), a first slider (74), a second force measuring element (75), a second slider (76), and a calibration plate (77). The lifting cylinder (71) is connected to the base (1), and the fixed frame (72) is connected to the lifting cylinder (71). One end of the first force measuring element (73) is connected to the fixed frame (72), and the other end is fixedly connected to the first slider (74). One end of the second force measuring element (75) is connected to the fixed frame (72), and the other end is fixedly connected to the second slider (76). The first slider (74) and the first force measuring element (75) are connected to the base (1). Both sliders (76) are slidably connected to the fixed frame (72), the calibration plate (77) is fixedly connected to the first clamping assembly (41), the first slider (74) and the second slider (76) can selectively abut against the calibration plate (77), when the first slider (74) and the second slider (76) abut against the calibration plate (77), the first slider (74) and the second slider (76) are respectively located on both sides of the calibration plate (77), if the readings of the first force measuring element (73), the second force measuring element (75) and the tensile detector (63) are all within the preset range, then the tensile detector (63) is accurate.

2. The detection device for graphene materials according to claim 1, characterized in that: The first support (2) includes a first vertical plate (21) and a second vertical plate (22). Both the first vertical plate (21) and the second vertical plate (22) are connected to the base (1), and the first vertical plate (21) and the second vertical plate (22) are parallel. The horizontal moving device (5) includes a first movable groove (51), a first roller (52), a second movable groove (53), and a second roller (54). The first movable groove (51) is opened on the first vertical plate (21), the first roller (52) is located in the first movable groove (51) and rolls against the first vertical plate (21), the second movable groove (53) is opened on the second vertical plate (22), the second roller (54) is located in the second movable groove (53) and rolls against the second vertical plate (22), the first roller (52) and the second roller (54) are respectively located on both sides of the first clamping assembly (41) and connected to the first clamping assembly (41).

3. The detection device for graphene materials according to claim 2, characterized in that: It also includes a positioning device (8), which includes a positioning component (81) and a driving component (82). The positioning component (81) includes a base plate (811), a positioning cylinder (812), and a positioning rod (813). The base plate (811) is slidably connected to the base (1). The driving component (82) is connected to the base (1) and is used to drive the base plate (811) to slide. The pulling device (6) is connected to the base plate (811). The positioning cylinder (812) is connected to the base plate (811). The bottom end of the positioning rod (813) is connected to the driving shaft of the positioning cylinder (812), and the top end is selectively abutted against the side of the horizontal moving device (5) away from the tension detector (63). When the horizontal moving device (5) abuts against the corresponding positioning rod (813), it is used to align the calibration plate (77) with the gap between the first slider (74) and the second slider (76).

4. The detection device for graphene materials according to claim 3, characterized in that: The positioning rod (813) extends into the first movable groove (51), the positioning rod (813) is slidably connected to the first vertical plate (21), and the positioning rod (813) can selectively abut against the first roller (52).

5. The detection device for graphene materials according to claim 3, characterized in that: The drive assembly (82) includes a motor (821), a lead screw (822), and a guide rod (823). The motor (821) is connected to the base (1). The lead screw (822) and the guide rod (823) are arranged in parallel. Both ends of the lead screw (822) are rotatably connected to the base (1). The motor (821) is connected to one end of the lead screw (822). Both ends of the guide rod (823) are connected to the base (1). The base plate (811) is sleeved on the lead screw (822) and the guide rod (823). The base plate (811) is threadedly connected to the lead screw (822) and slidably connected to the guide rod (823).

6. The detection device for graphene materials according to claim 1, characterized in that: The first slider (74) has a first inclined surface (741) at the top, and the second slider (76) has a second inclined surface (761) at the top. The first inclined surface (741) and the second inclined surface (761) have opposite inclination directions and are inclined towards each other from top to bottom.

7. The detection device for graphene materials according to claim 1, characterized in that: Both the first force measuring element (73) and the second force measuring element (75) are bidirectional elastic force gauges.

8. The detection device for graphene materials according to claim 2, characterized in that: The first clamping assembly (41) includes a mounting frame (411), a first clamping plate (412), a second clamping plate (413), and an adjusting rod (414). One end of the mounting frame (411) is connected to the first roller (52), and the other end is connected to the second roller (54). The first clamping plate (412) is connected to the mounting frame (411), and the second clamping plate (413) is slidably connected to the mounting frame (411). The adjusting rod (414) passes through the mounting frame (411) and is threadedly connected to the mounting frame (411). The second clamping plate (413) is rotatably connected to the adjusting rod (414).

9. The detection device for graphene materials according to claim 8, characterized in that: The mounting bracket (411) is connected to a first protrusion (4111) and a second protrusion (4112). The first protrusion (4111) is slidably connected to the first vertical plate (21), and the second protrusion (4112) is slidably connected to the second vertical plate (22).

10. The detection device for graphene materials according to claim 1, characterized in that: The second clamping assembly (42) includes a fixed clamping plate (421), a movable clamping plate (422), and a screw (423). The fixed clamping plate (421) is fixedly connected to the second bracket (3), the movable clamping plate (422) is slidably connected to the second bracket (3), the screw (423) passes through the second bracket (3) and is rotatably connected to the movable clamping plate (422), the screw (423) is threadedly connected to the second bracket (3), and a handle is connected to one end of the screw (423) away from the movable clamping plate (422).

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