Composite material tensile shear sample curing auxiliary tool

Abstract

The invention discloses a composite material tensile shear sample curing auxiliary tool, and belongs to the technical field of curing auxiliary equipment.The composite material tensile shear sample curing auxiliary tool comprises a heating platform, the top of the heating platform is connected with a cover plate through a first screw, and a temperature control system is installed on the inner side of the heating platform and comprises a heating rod and a temperature sensor; two clamp assemblies distributed in parallel are arranged at the top of the heating platform, each clamp assembly comprises a sliding rail connected to the top of the heating platform and a plurality of clamping blocks slidably connected with the sliding rail, a baffle is arranged between the two clamp assemblies, and the baffle is installed on the heating platform in a liftable mode. Through the arrangement of the clamp assemblies and the baffle, the two clamp assemblies clamp sample plates needing to be cured respectively, one end of the lower sample plate abuts against the baffle, the upper sample plate is placed on the baffle, the overlapping position of the two sample plates is coated with an adhesive, and through the arrangement of the sliding rail and the multiple clamping blocks, samples with different widths can be clamped; and curing.

Description

Technical Field

[0001] The invention relates to a curing auxiliary device, in particular to a composite material tensile shearing specimen curing auxiliary tool, belonging to the technical field of curing auxiliary equipment. Background Art

[0002] In the field of materials science and engineering, fiber composites are widely used in aerospace, automobile manufacturing, construction engineering and other fields due to their excellent strength, stiffness and light weight. However, in the manufacturing process of fiber composites, the curing deformation of adhesive tensile shear specimens has always been a difficult problem. The curing process in the field of mechanical engineering is a key step to ensure the performance of fiber composites. Traditional curing methods mainly include autoclave curing. However, these methods often require high equipment costs and long curing time, and are prone to specimen deformation, affecting the final mechanical properties. The field of chemical engineering focuses on the research and development and optimization of adhesives. The selection and use of adhesives are crucial to the curing and performance of fiber composites. However, the curing performance of existing adhesives in tensile shear tests is not ideal, and problems such as curing deformation often occur, which affects the accuracy and reliability of the test results. Solutions of the prior art: In order to solve the problem of curing deformation of fiber composite tensile shear specimens, researchers have developed some auxiliary tools and methods. For example, some studies have used prestressed fixtures to fix the specimens to prevent them from deforming during the curing process. In addition, some people have proposed using temperature control equipment to accurately control the curing temperature to reduce the thermal stress deformation of the specimens.

[0003] Existing auxiliary tools and methods can alleviate the problem of curing deformation of fiber composite tensile shear specimens to a certain extent, but there are still some limitations. First, the application and adjustment process of the prestressed fixture is relatively complicated, and it is easy to generate additional stress on the specimen, affecting the accuracy of the test results. Secondly, the lack of precision and stability of heating equipment such as ovens may lead to uneven curing temperature, thus affecting the curing effect. The use of high-energy-consuming heating equipment such as autoclaves is not conducive to energy conservation and emission reduction, and the cost of the equipment is relatively high. Finally, the curing performance of existing adhesives in tensile shear tests still needs to be improved, which requires further research and optimization.

[0004] Therefore, the present invention proposes a new solution. Summary of the invention

[0005] The main purpose of the present invention is to solve the deficiencies of the prior art and provide a composite material tensile shear specimen curing auxiliary tool.

[0006] The purpose of the present invention can be achieved by adopting the following technical solutions:

[0007] A composite material tensile shear specimen curing auxiliary tool comprises a heating platform, the top of the heating platform is connected to a cover plate by a first screw, a temperature control system is installed on the inner side of the heating platform, the temperature control system comprises a heating rod and a temperature sensor, two parallelly distributed clamp assemblies are arranged on the top of the heating platform, the clamp assemblies comprise a slide rail connected to the top of the heating platform, and a plurality of clamp blocks slidably connected to the slide rail, a baffle is arranged between the two clamp assemblies, and the baffle can be lifted and lowered on the heating platform.

[0008] Preferably, the slide rail is a trapezoidal slide rail, a slide groove slidably connected to the slide rail is provided at the bottom of the clamping block, a second screw located at the top of the slide rail is threadedly connected to the clamping block, and a first screw hole threadedly connected to the second screw is provided at the top of the slide groove.

[0009] Preferably, the slide rail is connected to the top of the heating platform via a third screw, a second screw hole cooperating with the third screw is provided on the top of the heating platform, and a countersunk hole is provided on the slide rail.

[0010] Preferably, a mounting groove is provided on the top of the heating platform, and the baffle is installed on the inner side of the mounting groove.

[0011] Preferably, both ends of the inner side of the installation groove are fixedly connected to limit rods, and both ends of the baffle are provided with limit holes that cooperate with the limit rods.

[0012] Preferably, a first adjusting screw is threadedly connected to the middle portion of the baffle, and an adjusting screw hole cooperating with the first adjusting screw is opened in the middle portion of the baffle.

[0013] Preferably, scale lines are provided on the outer wall of the baffle.

[0014] Preferably, the four top corners of the heating platform are fixedly connected with threaded sleeves that cooperate with the first screws.

[0015] Preferably, an auxiliary plate located on the heating platform is liftably mounted on one side of the baffle, and an auxiliary groove cooperating with the auxiliary plate is formed on the clamping block.

[0016] Preferably, a placement groove cooperating with the auxiliary plate is provided on the heating platform, and both ends of the auxiliary plate are threadedly connected with a second adjusting screw.

[0017] Beneficial technical effects of the present invention: According to the composite material tensile shear specimen curing auxiliary tool of the present invention, through the setting of the clamp assembly and the baffle, the two clamp assemblies respectively clamp the specimen plates to be cured, wherein one end of the lower specimen plate abuts the baffle, the upper specimen plate is placed on the baffle, and adhesive is applied to the overlapping part of the two specimen plates. Through the setting of the slide rail and multiple clamps, specimens of different widths can be clamped for curing, and multiple groups of specimens can be cured at the same time, which can meet the use requirements; through the setting of the baffle being able to be lifted and installed on the heating platform, the height between the two specimen plates can be conveniently adjusted, so as to facilitate the application of adhesives of different thicknesses. Through the setting of the temperature control system, the curing temperature can be accurately controlled to fully cure the adhesive. Through the above setting, the curing deformation problem of the adhesive tensile shear specimen can be effectively solved, and the accuracy and reliability of the test results can be improved. At the same time, the tool is simple to operate, easy to implement, and suitable for various types of adhesives. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A diagram showing the overall structure of a preferred embodiment of the present invention;

[0019] Figure 2 A diagram showing the overall structure of a preferred embodiment of the present invention;

[0020] Figure 3 A cross-sectional view of the overall structure of a preferred embodiment provided according to the present invention;

[0021] Figure 4 A structural connection diagram of a heating platform according to a preferred embodiment of the present invention;

[0022] Figure 5 A schematic diagram of a clamping block structure according to a preferred embodiment of the present invention;

[0023] Figure 6 The figure is a schematic diagram of a baffle structure according to a preferred embodiment of the present invention.

[0024] In the figure: 1. heating platform; 2. first screw; 3. cover plate; 4. heating rod; 5. temperature sensor; 6. slide rail; 7. clamp block; 8. baffle; 9. slide groove; 10. second screw; 11. first screw hole; 12. third screw; 13. second screw hole; 14. countersunk hole; 15. mounting groove; 16. limit rod; 17. limit hole; 18. first adjusting screw; 19. adjusting screw hole; 20. threaded sleeve; 21. auxiliary plate; 22. auxiliary groove; 23. placement groove; 24. second adjusting screw; 25. sample plate. DETAILED DESCRIPTION

[0025] In order to make the technical solution of the present invention more clear and specific to those skilled in the art, the present invention is further described in detail below in conjunction with embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0026] like Figure 1-Figure 6 As shown, the composite material tensile shear specimen curing auxiliary tool provided in this embodiment includes a heating platform 1, the top of the heating platform 1 is connected to a cover plate 3 by a first screw 2, a temperature control system is installed on the inner side of the heating platform 1, the temperature control system includes a heating rod 4 and a temperature sensor 5, and two parallel-distributed clamp assemblies are arranged on the top of the heating platform 1. The clamp assembly includes a slide rail 6 connected to the top of the heating platform 1, and a plurality of clamp blocks 7 slidably connected to the slide rail 6. A baffle 8 is arranged between the two clamp assemblies, and the baffle 8 can be lifted and lowered on the heating platform 1. Through the setting of the clamp assembly and the baffle 8, the two clamp assemblies respectively clamp the sample plates 25 to be cured, wherein one end of the lower sample plate 25 abuts against the baffle 8, and the upper sample plate 25 is placed on the baffle 8, and the adhesive is applied to the overlap of the two sample plates 25. Through the setting of the slide rail 6 and multiple clamps 7, samples of different widths can be clamped for curing, and multiple groups of samples can be cured at the same time, which can meet the use requirements; through the setting of the baffle 8 being able to be lifted and installed on the heating platform 1, the height between the two sample plates 25 can be conveniently adjusted, so as to facilitate the application of adhesives of different thicknesses. Through the setting of the temperature control system, the curing temperature can be accurately controlled to fully cure the adhesive. Through the above setting, the curing deformation problem of the adhesive tensile shear sample can be effectively solved, and the accuracy and reliability of the test results can be improved. At the same time, the tool is simple to operate, easy to implement, and suitable for various types of adhesives.

[0027] In this embodiment, if Figure 1 , Figure 2 and Figure 3 As shown, the slide rail 6 is a trapezoidal slide rail, the bottom of the clamp block 7 is provided with a slide groove 9 slidably connected to the slide rail 6, the clamp block 7 is threadedly connected with a second screw 10 located at the top of the slide rail 6, the top of the slide groove 9 is provided with a first screw hole 11 threadedly connected to the second screw 10, the slide rail 6 is connected to the top of the heating platform 1 through a third screw 12, the top of the heating platform 1 is provided with a second screw hole 13 matched with the third screw 12, and the slide rail 6 is provided with a countersunk hole 14. Through the arrangement of the slide rail 6, the slide groove 9, the second screw 10 and the first screw hole 11, tightening the second screw 10 can fix the clamp block 7 to the slide rail 6, and loosening it can be adjusted to suit different samples, which is convenient to adjust and easy to operate.

[0028] In this embodiment, if Figure 1 , Figure 2 and Figure 3As shown, a mounting groove 15 is provided on the top of the heating platform 1, and the baffle 8 is installed on the inner side of the mounting groove 15. The two ends of the inner side of the mounting groove 15 are fixedly connected to the limit rod 16. The two ends of the baffle 8 are provided with a limit hole 17 that cooperates with the limit rod 16. The middle part of the baffle 8 is threadedly connected with a first adjustment screw 18. The middle part of the baffle 8 is provided with an adjustment screw hole 19 that cooperates with the first adjustment screw 18. The outer wall of the baffle 8 is provided with a scale line. The setting of the limit rod 16 and the limit hole 17 ensures that the baffle 8 will not deviate during the up and down movement process, so as to accurately control the thickness of the adhesive. When in use, the first adjustment screw 18 is turned, the scale line is observed, and the baffle 8 is raised and lowered.

[0029] In this embodiment, if Figure 1 , Figure 4 and Figure 5 As shown, the four corners of the top of the heating platform 1 are fixedly connected with threaded sleeves 20 that match the first screw 2, and one side of the baffle 8 is equipped with an auxiliary plate 21 on the heating platform 1, which can be lifted and lowered. The clamping block 7 is provided with an auxiliary groove 22 that matches the auxiliary plate 21, and the heating platform 1 is provided with a placement groove 23 that matches the auxiliary plate 21. The two ends of the auxiliary plate 21 are threadedly connected with the second adjustment screw 24. The auxiliary plate 21 can play an auxiliary support role by setting it, and the second adjustment screw 24 can be adjusted synchronously with the baffle 8 to make the baffle 8 and the top of the auxiliary plate 21 flush, so as to prevent the sample plate 25 on it from tilting up due to uneven force during auxiliary curing, which affects the curing effect.

[0030] In this embodiment, if Figure 1-Figure 6 As shown, the working process of a composite material tensile shear specimen curing auxiliary tool provided in this embodiment is as follows:

[0031] Step 1: First, place the adhesive tensile shear specimen in the fixture assembly. Move the clamp blocks 7 on the two fixture assemblies to clamp the specimen plate 25 to be cured. According to the required thickness of the adhesive, adjust the height of the baffle 8, and simultaneously adjust the auxiliary plate 21 to be flush with the baffle 8. Then, make one end of the lower specimen plate 25 butt against the baffle 8, place the upper specimen plate 25 on the baffle 8 and the auxiliary plate 21, and apply adhesive at the overlap of the two specimen plates 25.

[0032] Step 2: Adjust the curing temperature to a set value through the temperature control system. In this embodiment, the curing temperature is set to 80° C.

[0033] Step 3: Maintain the curing temperature for a period of time to allow the adhesive to fully cure. In this embodiment, the curing temperature is maintained for 2 hours.

[0034] The above are only further embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and concepts of the present invention within the scope disclosed by the present invention, which belong to the protection scope of the present invention.

Claims

1. A composite material tensile shear specimen curing auxiliary tool, comprising a heating platform (1), the top of the heating platform (1) being connected to a cover plate (3) via a first screw (2), characterized in that: A temperature control system is installed on the inner side of the heating platform (1), and the temperature control system includes a heating rod (4) and a temperature sensor (5). Two parallel clamp assemblies are arranged on the top of the heating platform (1), and the clamp assemblies include a slide rail (6) connected to the top of the heating platform (1), and a plurality of clamp blocks (7) slidably connected to the slide rail (6). A baffle (8) is arranged between the two clamp assemblies, and the baffle (8) is installed on the heating platform (1) in a liftable manner.

2. A composite material tensile shear specimen curing auxiliary tool according to claim 1, characterized in that: The slide rail (6) is a trapezoidal slide rail, a slide groove (9) is provided at the bottom of the clamping block (7) and is slidably connected to the slide rail (6), a second screw (10) located at the top of the slide rail (6) is threadedly connected to the clamping block (7), and a first screw hole (11) is provided at the top of the slide groove (9) and is threadedly connected to the second screw (10).

3. A composite material tensile shear specimen curing auxiliary tool according to claim 1, characterized in that: The slide rail (6) is connected to the top of the heating platform (1) via a third screw (12); a second screw hole (13) cooperating with the third screw (12) is provided on the top of the heating platform (1); and a countersunk hole (14) is provided on the slide rail (6).

4. The composite material tensile shear specimen curing auxiliary tool according to claim 1, characterized in that: The top of the heating platform (1) is provided with a mounting groove (15), and the baffle (8) is mounted on the inner side of the mounting groove (15).

5. A composite material tensile shear specimen curing auxiliary tool according to claim 4, characterized in that: Both ends of the inner side of the installation groove (15) are fixedly connected to a limiting rod (16), and both ends of the baffle plate (8) are provided with a limiting hole (17) that cooperates with the limiting rod (16).

6. A composite material tensile shear specimen curing auxiliary tool according to claim 5, characterized in that: A first adjusting screw (18) is threadedly connected to the middle of the baffle (8), and an adjusting screw hole (19) matching with the first adjusting screw (18) is opened in the middle of the baffle (8).

7. A composite material tensile shear specimen curing auxiliary tool according to claim 6, characterized in that: The outer wall of the baffle (8) is provided with scale lines.

8. The composite material tensile shear specimen curing auxiliary tool according to claim 1, characterized in that: The four corners on the top of the heating platform (1) are all fixedly connected with threaded sleeves (20) that cooperate with the first screws (2).

9. The composite material tensile shear specimen curing auxiliary tool according to claim 1, characterized in that: An auxiliary plate (21) located on the heating platform (1) is installed on one side of the baffle plate (8) in a liftable manner, and an auxiliary groove (22) cooperating with the auxiliary plate (21) is provided on the clamping block (7).

10. A composite material tensile shear specimen curing auxiliary tool according to claim 9, characterized in that: The heating platform (1) is provided with a placement groove (23) that matches the auxiliary plate (21), and both ends of the auxiliary plate (21) are threadedly connected with a second adjusting screw (24).

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