An adhesive temperature resistance test clamping frame

Abstract

This utility model relates to a clamping frame for testing the temperature resistance of adhesives, comprising: a base, with a crossbeam connected to the top of the base via a support column; and two sliding tables, each slidably mounted on either side of the crossbeam, each table having a pressure chamber. Each sliding table has a clamping plate connected to an opposite side for holding the test product. A sliding rod is fixedly connected to the side of the clamping plate closest to the sliding table, passing through the sliding table and extending into the pressure chamber. This utility model relates to the technical field of adhesive production. This clamping frame for testing the temperature resistance of adhesives can effectively improve the installation stability of the test product, allowing for stable installation regardless of whether the test product is in a high or low temperature environment, thereby effectively improving the practicality of the clamping frame.

Description

Technical Field

[0001] This utility model relates to the technical field of adhesive production, and in particular to an adhesive temperature resistance test clamp. Background Technology

[0002] Temperature resistance is one of the key performance indicators of adhesives, directly affecting their reliability, safety, and service life in specific application environments. Cured adhesive samples (usually lap shear tests, peel tests, or other standard samples) need to be placed in an oven or environmental chamber at a set temperature and exposed for a certain period of time (hours, days, weeks, or even months). After the test, the samples are removed, cooled to room temperature (or according to standard requirements), and then mechanical property tests (such as tensile shear strength, peel strength, etc.) are immediately performed. Finally, the performance retention rate before and after aging is compared to obtain the temperature resistance data of the adhesive.

[0003] In existing technologies, in adhesive temperature resistance testing (especially high / low temperature strength testing and post-heat aging strength testing), the clamp is the core equipment to ensure the accuracy and safety of the test, and it needs to meet the stability requirements under extreme temperatures. However, in high or low temperature environments, materials inevitably undergo thermal expansion and contraction, which can cause the originally stable clamp to loosen due to slight deformation of the clamping joints, resulting in the product falling off and affecting the product's temperature resistance test. Utility Model Content

[0004] This application provides a clamping frame for testing the temperature resistance of adhesives, which can effectively improve the installation stability of the test products, enabling the test products to be stably installed regardless of whether they are in high or low temperature environments, thereby effectively improving the practicality of the clamping frame.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] An adhesive temperature resistance test fixture, comprising:

[0007] The base has a crossbeam connected to its top via a support column;

[0008] There are two slides, which are slidably mounted on both sides of the crossbeam. Each slide has a pressure chamber. Each slide has a clamping plate for holding the test product connected to one side of the opposite side. A slide rod is fixedly connected to the side of the clamping plate near the slide. The slide rod passes through the slide and extends into the pressure chamber.

[0009] A support assembly, which is set inside the slide, is used to improve the stability of the experimental product clamping. The support assembly includes a piston and a pressure valve. Two pistons are set in the pressure chamber. The pressure valve, which communicates with the pressure chamber, is fixedly connected to the side wall of the slide between the two pistons. One of the pistons, which is away from the crossbeam, is connected to an adjusting component for adjusting the position. The other piston, which is away from the pressure valve, is fixedly connected to the pressure chamber with a support spring.

[0010] Furthermore, the side wall of the crossbeam is provided with a track groove, and a positive and negative threaded screw is rotatably connected in the track groove. Two sliders are threadedly connected to the positive and negative threaded screws, and the two sliders are fixedly connected to two slides respectively.

[0011] Furthermore, guide plates are connected to the top and bottom of the side wall of the clamping plate, and guide grooves connected to the guide plates are opened at the top and bottom of the slide table.

[0012] Furthermore, the adjusting component includes a sleeve, an adjusting screw, and an adjusting disc. The end of the slide away from the crossbeam is rotatably connected to the adjusting screw. The end of the adjusting screw that extends into the pressure chamber is threadedly connected to the sleeve. The end of the sleeve away from the adjusting screw is fixedly connected to the piston. The end of the adjusting screw located outside the slide is fixedly connected to the adjusting disc.

[0013] Furthermore, the side wall of the slide has two through slots that communicate with the pressure chamber, and the two through slots are respectively located on both sides of the pressure chamber.

[0014] Furthermore, the side wall of the slide table near the pressure valve has an installation groove, and a cover plate for blocking the pressure valve is rotatably connected in the installation groove.

[0015] In summary, this utility model has at least one of the following beneficial technical effects:

[0016] This adhesive temperature resistance test clamp, through its support components, allows for increased air pressure between two pistons after the test product is clamped on the slide table. This increased air pressure pushes a slide rod to apply pressure to the clamping plate, ensuring the clamping stability of the test product. When the product cools down, the support spring pushes the piston to move and compress the air between the two pistons, maintaining a positive pressure between them. When the temperature rises, the air is discharged through a pressure valve, ensuring the pressure in the pressure chamber remains at a suitable level. This allows the test product to be stably installed regardless of whether it is in a high-temperature or low-temperature environment, effectively improving the practicality of the clamp. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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 these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of an adhesive temperature resistance test clamp according to the present invention.

[0019] Figure 2 This is a schematic diagram showing the state of the adhesive temperature resistance test clamp when holding the test product.

[0020] Figure 3 This is a schematic diagram of the structure inside the slide table of an adhesive temperature resistance test fixture according to the present invention.

[0021] Figure 4 This is a schematic diagram illustrating the use of the cover plate in a temperature resistance testing fixture for adhesives according to this utility model.

[0022] In the diagram, 1. Base; 2. Slide table; 3. Support assembly; 31. Piston; 32. Pressure valve; 4. Support column; 5. Crossbeam; 6. Pressure chamber; 7. Clamping plate; 8. Slide rod; 9. Adjusting component; 91. Sleeve; 92. Adjusting screw; 93. Adjusting disc; 10. Support spring; 11. Track groove; 12. Positive and negative thread screw; 13. Slider; 14. Guide plate; 15. Guide groove; 16. Through groove; 17. Mounting groove; 18. Cover plate. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings.

[0024] Example:

[0025] Reference Figure 1 - Figure 4 This utility model discloses an adhesive temperature resistance test clamp, comprising:

[0026] The base 1 has a crossbeam 5 connected to its top via a support column 4;

[0027] There are two slides 2, which are slidably mounted on both sides of the crossbeam 5. A pressure chamber 6 is opened in the slide 2. Each of the two slides 2 has a clamping plate 7 for holding the test product connected to one side of the opposite side. A slide rod 8 is fixedly connected to the side of the clamping plate 7 near the slide 2. The slide rod 8 passes through the slide 2 and extends into the pressure chamber 6.

[0028] The support assembly 3 is installed inside the slide table 2 to improve the stability of the experimental product clamping. The support assembly 3 includes a piston 31 and a pressure valve 32. Two pistons 31 are installed in the pressure chamber 6. The pressure valve 32, which communicates with the pressure chamber 6, is fixedly connected to the side wall of the slide table 2 between the two pistons 31. One of the pistons 31 away from the crossbeam 5 is connected to an adjusting member 9 for adjusting the position. The other piston 31 is fixedly connected to the pressure chamber 6 on the side away from the pressure valve 32.

[0029] In this embodiment, observation Figure 1 and Figure 2 It can be seen that by setting a base 1, the top of the base 1 is connected to a crossbeam 5 via a support column 4, and two slides 2 are slidably connected to the side walls of the crossbeam 5. A clamping plate 7 is connected to the opposite side of the two slides 2. The experimental product can be clamped and released by controlling the two slides 2 to move closer to each other or further away.

[0030] In high or low temperature environments, materials inevitably expand and contract with temperature changes, which can cause the originally stable clamping to loosen due to slight deformation of the clamping joints, resulting in the product falling off and affecting the product's temperature resistance test.

[0031] Therefore, observe Figure 3 It can be seen that a pressure chamber 6 is provided inside the slide table 2. A slide rod 8 is fixedly connected to the side of the clamping plate 7 near the slide table 2. The slide rod 8 passes through the slide table 2 and extends into the pressure chamber 6. A support assembly 3 is provided inside the slide table 2. The support assembly 3 includes a piston 31 and a pressure valve 32. Two pistons 31 are provided inside the pressure chamber 6. A pressure valve 32 communicating with the pressure chamber 6 is fixedly connected to the side wall of the slide table 2 between the two pistons 31. One of the pistons 31 away from the crossbeam 5 is connected to an adjusting member 9 for adjusting the position. A support spring 10 is fixedly connected between the side of the other piston 31 away from the pressure valve 32 and the pressure chamber 6.

[0032] When the two slides 2 approach each other to clamp the experimental product, the piston 31 can be moved in the pressure chamber 6 by adjusting the adjustment component 9, thereby compressing the air between the two pistons 31 and increasing the pressure between the two pistons 31.

[0033] As piston 31 continues to move, when the air pressure exceeds the supporting force provided by the support spring 10, the other piston 31 will move back. At this time, the support spring 10 deforms and provides a stronger supporting force to piston 31, thereby further increasing the air pressure between the two pistons 31. This causes the air pressure to push the slide rod 8 out of the pressure chamber 6, thereby causing the slide rod 8 to apply pressure to the clamping plate 7, which then clamps the test product.

[0034] After the clamping plate 7 clamps the test product, as the adjusting component 9 continues to operate, the piston 31 will continue to compress the air until the air pressure between the two pistons 31 exceeds the threshold of the pressure valve 32. Then the air is discharged through the pressure valve 32, which can avoid damaging the test product.

[0035] Once the test product is fixed, the test can begin. Whether it is a heating test or a cooling test, the air in the pressure chamber 6 will naturally increase or decrease in pressure as it is heated or cooled. When the air pressure increases, the gas will be discharged through the pressure valve 32 to maintain the air pressure in the pressure chamber 6 and ensure the clamping stability of the test workpiece. When the pressure decreases, the support spring 10 will rebound and compress the air, which can ensure that the pressure chamber 6 is always in a positive pressure state, and can ensure that the clamping plate 7 provides stable clamping for the test workpiece. Therefore, the clamping frame can stably clamp the test workpiece regardless of whether it is in a low temperature or high temperature state, ensuring that the adhesive temperature resistance test can be carried out stably.

[0036] In a further preferred embodiment of this utility model, such as Figure 1 As shown, the side wall of the crossbeam 5 is provided with a track groove 11, and a positive and negative threaded screw 12 is rotatably connected in the track groove 11. Two sliders 13 are threadedly connected to the positive and negative threaded screw 12. The two sliders 13 are fixedly connected to two slides 2 respectively. The rotation of the positive and negative threaded screw 12 can be controlled by the turntable on the outside of the crossbeam 5, so that the two slides 2 move closer or further away from each other, ensuring the stability of the clamping frame in holding the test product.

[0037] In a further preferred embodiment of this utility model, such as Figure 2 As shown, the top and bottom of the side wall of the clamping plate 7 are connected to guide plates 14, and the top and bottom of the slide table 2 are provided with guide grooves 15 connected to the guide plates 14, which can make the movement of the clamping plate 7 more stable and avoid the clamping of the test workpiece from tilting.

[0038] In a further preferred embodiment of this utility model, such as Figure 3 As shown, the adjusting component 9 includes a sleeve 91, an adjusting screw 92, and an adjusting disc 93. The end of the slide table 2 away from the crossbeam 5 is rotatably connected to the adjusting screw 92. The end of the adjusting screw 92 that extends into the pressure chamber 6 is threadedly connected to the sleeve 91. The end of the sleeve 91 away from the adjusting screw 92 is fixedly connected to the piston 31. The end of the adjusting screw 92 located outside the slide table 2 is fixedly connected to the adjusting disc 93. The adjusting screw 92 can be rotated by rotating the adjusting disc 93, thereby allowing the sleeve 91 to move on the adjusting screw 92, which is used to control the movement of the piston 31 in the pressure chamber 6 and ensure the stability of the support assembly 3.

[0039] In a further preferred embodiment of this utility model, such as Figure 3As shown, the side wall of the slide 2 has two through slots 16 that communicate with the pressure chamber 6. The two through slots 16 are respectively located on both sides of the pressure chamber 6, so that the two pistons 31 will not be disturbed by air compression when they move in the pressure chamber 6, so as to ensure that the two pistons 31 can move stably in the pressure chamber 6.

[0040] In a further preferred embodiment of this utility model, such as Figure 4 As shown, the side wall of the slide table 2 near the pressure valve 32 is provided with an installation groove 17. A cover plate 18 for blocking the pressure valve 32 is rotatably connected in the installation groove 17. When the pressure valve 32 is depressurized, the cover plate 18 can be opened by air. After the depressurization is completed, the cover plate 18 falls back and will collide with the installation groove 17 to produce a sound, which can be used to indicate to the operator that the piston 31 has been adjusted to the appropriate position, and can reduce the difficulty of using the clamping frame.

[0041] The implementation principle of the above embodiment is as follows: the test product is placed between two slides 2, and then the two slides 2 can clamp the test product to complete the initial installation of the test product.

[0042] Once the experimental product is initially installed, the adjusting disc 93 can be rotated to move the piston 31 within the pressure chamber 6, thereby increasing the air pressure between the two pistons 31. This air pressure is then used to push the slide rod 8 to apply pressure to the clamping plate 7, ensuring that the clamping plate 7 can stably clamp the experimental product.

[0043] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A clamping device for testing the temperature resistance of adhesives, characterized in that, include: The base (1) has a crossbeam (5) connected to its top via a support column (4); There are two slides (2), which are slidably mounted on both sides of the crossbeam (5). A pressure chamber (6) is opened in the slide (2). A clamping plate (7) for holding the test product is connected to the opposite side of the two slides (2). A sliding rod (8) is fixedly connected to the side of the clamping plate (7) near the slide (2). The sliding rod (8) passes through the slide (2) and extends into the pressure chamber (6). The support assembly (3) is set inside the slide (2) to improve the stability of the experimental product clamping. The support assembly (3) includes a piston (31) and a pressure valve (32). Two pistons (31) are set inside the pressure chamber (6). The side wall of the slide (2) is fixedly connected to the pressure valve (32) which communicates with the pressure chamber (6) at the position between the two pistons (31). One of the pistons (31) away from the crossbeam (5) is connected to an adjusting member (9) for adjusting the position. The other piston (31) is fixedly connected to the pressure chamber (6) on the side away from the pressure valve (32). A support spring (10) is fixedly connected between the side of the other piston (31) away from the pressure valve (32) and the pressure chamber (6).

2. The adhesive temperature resistance testing clamp according to claim 1, characterized in that, The side wall of the crossbeam (5) is provided with a track groove (11), and a positive and negative thread screw (12) is rotatably connected in the track groove (11). Two sliders (13) are threadedly connected to the positive and negative thread screw (12), and the two sliders (13) are fixedly connected to the two slides (2) respectively.

3. The adhesive temperature resistance testing clamp according to claim 2, characterized in that, The top and bottom of the side wall of the clamp (7) are connected to guide plates (14), and the top and bottom of the slide (2) are provided with guide grooves (15) that are connected to the guide plates (14).

4. The adhesive temperature resistance testing clamp according to claim 3, characterized in that, The adjusting component (9) includes a sleeve (91), an adjusting screw (92), and an adjusting disc (93). The end of the slide (2) away from the crossbeam (5) is rotatably connected to the adjusting screw (92). The end of the adjusting screw (92) that extends into the pressure chamber (6) is threadedly connected to the sleeve (91). The end of the sleeve (91) away from the adjusting screw (92) is fixedly connected to the piston (31). The end of the adjusting screw (92) located outside the slide (2) is fixedly connected to the adjusting disc (93).

5. The adhesive temperature resistance testing clamp according to claim 4, characterized in that, The slide (2) has two through slots (16) on its side wall that communicate with the pressure chamber (6), and the two through slots (16) are respectively located on both sides of the pressure chamber (6).

6. The adhesive temperature resistance test clamp according to claim 5, characterized in that, The side wall of the slide (2) near the pressure valve (32) is provided with an installation groove (17), and a cover plate (18) for blocking the pressure valve (32) is rotatably connected in the installation groove (17).

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