A carbon fiber tensile strength testing device

Abstract

The present invention discloses a device for testing the tensile strength of carbon fiber, which relates to the technical field of tensile strength testing. Its technical key points include a testing machine base. Sliding platforms are symmetrically installed at the top of the testing machine base. A sliding seat is slidably arranged at the sliding platform. A lifting pull plate is installed between the two sliding seats. One side of one of the sliding platforms is connected to a controller through a wire. A tensile strength testing component is installed in the middle below the lifting pull plate. A torsion adjustment component is installed in the middle at the top of the testing machine base. The technical effect is that through the setting of the torsion adjustment component, when it is necessary to test the tensile strength of the carbon fiber material in a twisted state, by screwing in or out the angle control seat, the corresponding position of the adjustment matching surface and the angle control groove is changed, and the upward movement stroke that can be controlled is changed, so as to control the twist angle of the lower clamping component, and realize the tensile strength test of the carbon fiber material in a twisted state.

Description

Technical Field

[0001] The present invention relates to the technical field of tensile strength testing, and specifically to a carbon fiber tensile strength testing device. Background Art

[0002] As a high-performance new material, carbon fiber materials have shown great application potential in many fields. In the aerospace field, the lightweight and high-strength characteristics of carbon fiber materials make them an ideal choice for manufacturing key components such as aircraft and spacecraft, which can effectively reduce the weight of the aircraft, improve fuel efficiency and flight performance. In the automotive industry, the application of carbon fiber materials can reduce the overall weight of the vehicle, thereby reducing energy consumption and emissions. In the field of sports goods, in products such as golf clubs and bicycle frames, carbon fiber materials can provide excellent strength and rigidity, and at the same time have good shock absorption performance.

[0003] However, in order to ensure the safe and reliable application of carbon fiber materials in various fields, it is crucial to accurately measure their tensile strength. Currently, when the existing tensile strength testing devices conduct tensile tests on carbon fibers, they are often in a simple straight-pull form and cannot achieve the testing of the twisted state of carbon fiber materials. However, when carbon fibers are used in specific scenarios, they often are used in a twisted form. Obtaining the tensile strength test data under the twisted state can be an important parameter. Therefore, it is necessary to develop a tensile strength testing device that can achieve the tensile strength test of carbon fiber materials in a twisted state. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a carbon fiber tensile strength testing device, which can achieve the tensile force test of carbon fiber materials at different twisting angles.

[0005] To achieve the above object, the present invention provides the following technical solution: A carbon fiber tensile strength testing device includes a testing machine base. On the top of the testing machine base, sliding platforms are symmetrically installed. A sliding seat is slidably arranged at the sliding platform. An elevating pull plate is installed between the two sliding seats. One side of one of the sliding platforms is connected to a controller through a wire. In the middle below the elevating pull plate, a tensile strength testing component is installed. In the middle of the top of the testing machine base, a torsion adjustment component is installed. Clamping components are installed at the pulling end of the tensile strength testing component and the moving end of the torsion adjustment component;

[0006] The torsion adjustment component includes a fixed sleeve seat installed in the middle of the top of the testing machine base. A sliding platform is slidably arranged inside the fixed sleeve seat. A sliding rod is fixedly connected to the top of the sliding platform. The top of the fixed sleeve seat is covered with a sleeve seat cover plate;

[0007] On one side of the outer wall of the sliding table, an angle control seat is detachably arranged. One end of the angle control seat is fixedly connected with a support stress-bearing sliding seat. One end of the support stress-bearing sliding seat is fixedly connected with a tightening screw. An adjustment matching surface is provided on the outer wall of the angle control seat. The other end of the angle control seat is fixedly connected with an adjustment knob. An angle adjustment groove for cooperating with the angle control seat is provided on the outer wall of the fixed sleeve seat.

[0008] Preferably, the tensile strength testing component includes a load sensor installed in the middle of the bottom end of the lifting pull plate. The load sensor is used for tensile testing. The pulling end of the load sensor is connected with a connecting pull rod.

[0009] Preferably, one ends of the sliding rod and the connecting pull rod are both fixedly connected with clamping seats. A clamping plate is slidably arranged inside the clamping seats. An adjusting rod is rotatably installed on one side of the clamping plate. The adjusting rod is threadedly connected with the clamping seat. A rotating force arm is installed on one side of the outer wall of the adjusting rod.

[0010] Preferably, the inner diameter of the sleeve seat cover plate is smaller than the outer diameter of the sliding table for limiting the sliding table.

[0011] Preferably, a sliding stress-bearing hole for cooperating with the support stress-bearing sliding seat is provided on the outer wall of the sliding table. A threaded hole for cooperating with the tightening screw is provided at one end inside the sliding stress-bearing hole. The tightening screw is threadedly connected with the sliding table.

[0012] Preferably, the outer diameter of the adjustment matching surface gradually decreases from outside to inside, and the opening size of the angle adjustment groove gradually decreases from bottom to top.

[0013] Preferably, an angle scale line is provided on one end of the angle control seat and on the outer side of the outer ring of the adjustment knob. An alignment line for cooperating with the angle scale line is provided on the outer wall of the fixed sleeve seat. When the angle control seat is screwed in or out, by aligning the alignment line with the reading at the angle scale line, the adjusted rotation angle can be accurately read, so as to achieve the control of the twisted state of the carbon fiber material.

[0014] Compared with the prior art, the present invention provides a carbon fiber tensile strength testing device, which has the following beneficial effects: Through the setting of the torsion adjustment component, when it is necessary to test the tensile strength of the carbon fiber material in a twisted state, by screwing in or out the angle control seat, the corresponding position change between the adjustment matching surface and the angle adjustment groove is changed, and the upward movement stroke that can be controlled is changed, so as to control the twist angle of the lower clamping component, and realize the tensile strength test of the carbon fiber material in a twisted state. By aligning the alignment line with the reading at the angle scale line, the adjusted rotation angle can be accurately read, so as to achieve the control of the twisted state of the carbon fiber material, which is convenient for testing the tensile strength of the carbon fiber material in a twisted state. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the structural schematic diagram of the present invention;

[0016] Figure 2 is the structural schematic diagram of the fixed socket part in the present invention;

[0017] Figure 3 for the present invention Figure 2 is the enlarged schematic diagram at position A in;

[0018] Figure 4 is the partial disassembled structural schematic diagram of the present invention;

[0019] Figure 5 is the structural schematic diagram of the angle control seat in the present invention;

[0020] Figure 6 is the cross-sectional structural schematic diagram of the sliding rod and the sliding table in the present invention;

[0021] Figure 7 is the bottom structural schematic diagram of the lifting pull plate in the present invention.

[0022] In the figure: 1. Test machine base; 11. Slide table; 12. Sliding seat; 13. Lifting pull plate;

[0023] 2. Controller;

[0024] 3. Fixed socket; 31. Socket cover plate; 32. Sliding rod; 33. Sliding table;

[0025] 4. Clamping seat; 41. Adjusting rod; 42. Rotating force arm; 43. Clamping plate;

[0026] 5. Angle control seat; 51. Adjusting knob; 52. Angle scale line; 53. Alignment line; 54. Angle adjustment slot; 55. Support stress sliding seat; 551. Sliding stress hole; 56. Tightening screw; 561. Threaded hole; 57. Adjustment matching surface;

[0027] 6. Tensile strength test component; 61. Load sensor; 62. Connecting pull rod. Specific embodiments

[0028] In the present invention, unless otherwise stated, the directions such as "up, down" are usually in the directions shown in the drawings, or in the vertical, perpendicular or gravitational directions; similarly, for the convenience of understanding and description, "left, right" are usually left and right as shown in the drawings; "inside, outside" refer to the inside and outside relative to the contour of each component itself, but the above direction terms are not used to limit the present invention.

[0029] Please refer to Figure 1-7, the present invention provides a technical solution for a device for testing the tensile strength of carbon fiber:

[0030] Embodiment 1, a device for testing the tensile strength of carbon fiber, includes a testing machine base 1. On the top of the testing machine base 1, sliding platforms 11 are symmetrically installed. A sliding seat 12 is slidably arranged at the sliding platform 11. An elevating pull plate 13 is installed between the two sliding seats 12. One side of one of the sliding platforms 11 is connected to a controller 2 through a wire. In the middle of the lower part of the elevating pull plate 13, a tensile strength testing component 6 is installed. In the middle of the top of the testing machine base 1, a torsion adjustment component is installed. The pulling end of the tensile strength testing component 6 and the movable end of the torsion adjustment component are both installed with clamping components;

[0031] The torsion adjustment component includes a fixed sleeve seat 3 installed in the middle of the top of the testing machine base 1. A sliding platform 33 is slidably arranged inside the fixed sleeve seat 3. A sliding rod 32 is fixedly connected to the top of the sliding platform 33. The top of the fixed sleeve seat 3 is covered with a sleeve seat cover plate 31;

[0032] On one side of the outer wall of the sliding platform 33, an angle control seat 5 is detachably arranged. One end of the angle control seat 5 is fixedly connected to a support force receiving sliding seat 55. One end of the support force receiving sliding seat 55 is fixedly connected to a tightening screw 56. An adjustment matching surface 57 is provided on the outer wall of the angle control seat 5. The other end of the angle control seat 5 is fixedly connected to an adjustment knob 51. An angle adjustment groove 54 for cooperating with the angle control seat 5 is provided on the outer wall of the fixed sleeve seat 3;

[0033] The tensile strength testing component 6 includes a load sensor 61 installed in the middle of the bottom end of the elevating pull plate 13. The load sensor 61 is used for tensile testing. The pulling end of the load sensor 61 is connected to a connecting pull rod 62. One end of both the sliding rod 32 and the connecting pull rod 62 is fixedly connected to a clamping seat 4. A clamping plate 43 is slidably arranged inside the clamping seat 4. One side of the clamping plate 43 is rotatably installed with an adjusting rod 41. The adjusting rod 41 is threadedly connected to the clamping seat 4. A rotating force arm 42 is installed on one side of the outer wall of the adjusting rod 41. The clamping of the carbon fiber material is realized by the cooperation of the clamping plate 43 and the clamping seat 4. The inner diameter of the sleeve seat cover plate 31 is smaller than the outer diameter of the sliding platform 33, which is used for limiting the sliding platform 33.

[0034] Embodiment 2. A sliding force-receiving hole 551 for cooperating with the support force-receiving slide 55 is provided on the outer wall of the sliding table 33. A threaded hole 561 for cooperating with the tightening screw 56 is provided at one inner end of the sliding force-receiving hole 551. The tightening screw 56 is threadedly connected to the sliding table 33. The design of the threaded connection between the tightening screw 56 and the sliding table 33 can facilitate the quick adjustment of the screwing-in depth of the angle control seat 5. The design of the support force-receiving slide 55 can facilitate the adjustment of the screwing-in depth and provide a strong support for the angle control seat 5 at the same time. The adjusting mating surface 57 gradually decreases in outer diameter from outside to inside, and the opening size of the angle adjustment groove 54 gradually decreases from bottom to top. In use, by adjusting the screwing-in depth of the angle control seat 5, the torsional angle of the tested carbon fiber material can be adjusted;

[0035] At one end of the angle control seat 5 and on the outer side of the outer ring of the adjusting knob 51, an angle scale line 52 is provided. An alignment line 53 for cooperating with the angle scale line 52 is provided on the outer wall of the fixed socket 3. When screwing in or out the angle control seat 5, by aligning the alignment line 53 with the reading at the angle scale line 52, the adjusted rotation angle can be accurately read, so as to realize the control of the twisted state of the carbon fiber material and facilitate the acquisition of the tensile strength of the carbon fiber material in the twisted state. It should be noted that when the maximum outer diameter end of the angle control seat 5 is screwed into the angle adjustment groove 54, the angle control seat 5 cannot move upward at this time. At this time, the test state of the carbon fiber material is the non-twisted state, and the test data is transmitted to the computer terminal through the data transmission line for recording and statistics. This recording method is a common method in the art and will not be described in detail in this application.

[0036] During specific use, as a carbon fiber tensile strength testing device, when testing the tensile strength of a carbon fiber material, first, the two ends of the carbon fiber material are respectively clamped by the upper and lower clamping components. Then, by controlling the sliding of the sliding seat 12 of the sliding table 11, the carbon fiber material can be stretched, and the tensile strength is recorded by the load sensor 61. According to the test requirements, by turning the adjusting knob 51, the angle control seat 5 and the support force-receiving slide 55 can be rotated, and the tightening screw 56 can be screwed in or out, so that the outer diameter at the corresponding contact position between the adjusting mating surface 57 and the angle adjustment groove 54 changes with the screwing in and out. Thus, during the stretching process, the upward movement stroke of the angle control seat 5 can be changed. When the angle control seat 5 moves upward along the angle adjustment groove 54, it will drive the sliding table 33, the sliding rod 32 and the lower clamping component to rotate at a certain angle, so as to realize the tensile strength test of the carbon fiber material in the twisted state. At the same time, due to the setting of the angle scale line 52 and the alignment line 53, the twisted angle can be adjusted more accurately, so as to accurately obtain the tensile strength of the carbon fiber material in different twisted states.

[0037] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements, or modifications made based on the present invention to solve substantially the same technical problems and achieve substantially the same technical effects are all covered by the protection scope of the present invention.

Claims

1. A carbon fiber tensile strength testing device, comprising a testing machine base, a slide symmetrically mounted on the top of the testing machine base, a sliding seat slidably mounted on the slide, a lifting plate mounted between two sliding seats, and a controller connected to one side of one of the slides via a wire. The device is characterized by: A tensile strength testing component is installed in the middle of the lower part of the lifting plate, a torsion adjustment component is installed in the middle of the top of the testing machine base, and a clamping component is installed at the pulling end of the tensile strength testing component and the movable end of the torsion adjustment component; The torsion adjustment component includes a fixed sleeve installed in the middle of the top of the testing machine base, a sliding platform is slidably provided on the inner side of the fixed sleeve, a sliding rod is fixed to the top of the sliding platform, and the top cover of the fixed sleeve is connected to the sleeve cover plate; An angle control seat is detachably provided on one side of the outer wall of the sliding platform, one end of the angle control seat is fixedly connected to the supporting force sliding seat, one end of the supporting force sliding seat is fixedly connected to the tightening screw, the outer wall of the angle control seat is provided with an adjustment matching surface, the other end of the angle control seat is fixedly connected to the adjustment knob, and the outer wall of the fixed sleeve is provided with an angle control groove used in conjunction with the angle control seat; The diameter of the adjustment matching surface gradually decreases from the outside to the inside and outside, and the opening size of the angle adjustment groove gradually decreases from the bottom to the top; A sliding force-bearing hole for use with a supporting force-bearing slide seat is provided on the outer wall of the sliding platform, and a threaded hole for use with a tightening screw is provided at one end of the inner side of the sliding force-bearing hole, and the tightening screw is threadedly connected to the sliding platform.

2. A carbon fiber tensile strength testing device according to claim 1, characterized in that: The tensile strength testing component includes a load sensor installed in the middle of the bottom end of the lifting pull plate. The load sensor is used for tensile testing, and the pulling end of the load sensor is connected to a connecting rod.

3. A carbon fiber tensile strength testing device according to claim 2, characterized in that: One end of the sliding rod and the connecting pull rod are fixedly connected to a clamping seat, a clamping plate is slidingly provided on the inner side of the clamping seat, an adjusting rod is rotatably installed on one side of the clamping plate, the adjusting rod is threadedly connected to the clamping seat, and a rotating force arm is installed on one side of the outer wall of the adjusting rod.

4. A carbon fiber tensile strength testing device according to claim 1, characterized in that: The inner diameter of the sleeve cover plate is smaller than the outer diameter of the sliding table and is used to limit the sliding table.

5. The carbon fiber tensile strength testing device according to claim 1, characterized in that: An angle scale line is provided at one end of the angle control seat and located on one side of the outer ring of the adjusting knob, and an alignment line used in conjunction with the angle scale line is provided on the outer wall of the fixing sleeve.

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