Bonding strength sample preparation tool

Abstract

The utility model discloses a sample preparation tool for an adhesive strength sample, relates to the technical field of adhesive strength performance testing of adhesives, and can ensure the consistency of the sample after compression molding and improve the test accuracy and the sample preparation efficiency. The bonding strength sample preparation tool comprises an upper base, a lower base, a plurality of metal test blocks, a retainer and a plurality of rubber test pieces. A butt joint groove is formed in the upper base. And the lower base is detachably inserted into the butt joint groove. And a plurality of metal test blocks are uniformly arranged in the upper base and the lower base. And the retainer is arranged between the upper base and the lower base. Handles are arranged at two ends of the retainer. A plurality of test piece holes are uniformly formed in the retainer. And a plurality of rubber test pieces are arranged in the test piece holes one by one. The rubber test blocks are moved and bonded through the handle, so that the rubber test blocks can be accurately bonded with the metal test blocks in the upper base and the lower base, one-by-one manual operation of sample preparation personnel is avoided, and the probability of introducing dust, moisture and other impurities is reduced.

Description

Technical Field

[0001] This utility model relates to the field of adhesive strength performance testing technology, and in particular to a sample preparation tool for adhesive strength test specimens. Background Technology

[0002] When testing the adhesive strength between rubber and metal using methods such as GB / T11211-2009, it is necessary to prepare a rubber sample by bonding. This method requires bonding the upper and lower surfaces of a circular rubber specimen to a metal specimen. Traditional sample preparation methods require manual preparation of the adhesive, coating the rubber specimen and metal specimen, and then bonding them together. The thickness, flatness, parallelism, coaxiality, and bonding quality of the adhesive layer are highly dependent on the skill level of the preparer. Some adhesives also require curing under specific temperature and pressure conditions.

[0003] Currently, there is no universal tooling for testing the bonding strength of adhesives. Sample preparation personnel often coat both surfaces of the rubber disc manually. This process easily introduces dust, moisture, and other impurities. Furthermore, due to the lack of molds, the rubber disc is prone to deformation and misalignment under pressure, which alters the thickness of the bonding surface and affects the test results.

[0004] Taking GPS-2 adhesive as an example, the bonding strength test requires coating the rubber disc and metal specimen surfaces with surface treatment agents before bonding. The adhesive formed by mixing the two components (A and B) has a short activation period and low viscosity during this period. Without tooling or molds, the rubber disc is difficult to fix in place at the bonding position with the metal specimen, thus compromising the coaxiality of the specimens and the parallelism of the bonding surfaces. This results in inconsistent specimen shapes after preparation, affecting the consistency of the test results. Utility Model Content

[0005] The purpose of this invention is to solve at least one of the technical problems existing in the prior art, and to provide a sample preparation tool for adhesive strength test specimens, which can ensure the consistency of the specimens after molding and improve the accuracy of the test and the efficiency of sample preparation.

[0006] This utility model provides a sample preparation fixture for bonding strength test specimens, including an upper base with a mating groove; a lower base detachably inserted into the mating groove; a plurality of metal test blocks evenly arranged in the upper and lower bases, with each metal test block in the upper and lower bases corresponding to one another; a retainer disposed between the upper and lower bases, with handles at both ends of the retainer, and a plurality of test piece holes evenly arranged on the retainer, each test piece hole corresponding to one of the metal test blocks; and a plurality of rubber test pieces arranged one by one in the test piece holes, each rubber test piece having one side bondable to a metal test block in the upper base and the other side bondable to a metal test block in the lower base, and moving the retainer causing the plurality of rubber test pieces to move together.

[0007] According to an embodiment of this utility model, a sample preparation fixture for bonding strength test specimens has at least the following beneficial effects: the upper and lower bases can accurately position the metal test blocks; the mating groove of the upper base allows the lower base to accurately align with the upper base, thereby ensuring the coaxiality of the metal test blocks in the upper and lower bases. By positioning the rubber test piece with a retainer and then moving and bonding it with a handle, the rubber test piece can be accurately bonded to the metal test blocks in the upper and lower bases, avoiding manual operation by sample preparation personnel, reducing the probability of introducing dust, moisture, and other impurities, and improving efficiency.

[0008] According to the present invention, an adhesive strength test specimen preparation fixture is provided on the upper base, an upper guide plate is provided on the upper guide plate, a plurality of upper guide holes are uniformly opened on the upper guide plate, a plurality of metal test blocks are inserted in the plurality of upper guide holes, and a lower guide plate is provided on the lower base, a plurality of lower guide holes are uniformly opened on the lower guide plate.

[0009] According to the present invention, a sample preparation tool for bonding strength test specimens is provided, wherein the metal test block includes a bonding end and a guiding end, and the diameter of the bonding end is larger than that of the guiding end.

[0010] According to the present invention, a sample preparation tool for bonding strength test specimens is provided, wherein the guide end is provided with a pin hole and the guide end is inserted into the upper guide hole and / or the lower guide hole.

[0011] According to the present invention, in a sample preparation tool for bonding strength test specimens, the diameters of the upper guide hole and the lower guide hole are equal to the outer diameter of the guide end.

[0012] According to the present invention, a sample preparation tool for bonding strength test specimens is provided, wherein the test specimen hole and the rubber test specimen are interference-fitted.

[0013] According to the present invention, a sample preparation tool for bonding strength test specimens is provided on both sides of the upper base, and the handle can move in the retainer clearance groove. The lower base is provided on both sides of the lower base, and the handle can be embedded in the retainer positioning groove.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is an exploded structural diagram of a preferred embodiment of the present invention;

[0017] Figure 2 Cross-sectional view of a preferred embodiment of the present utility model Figure 1 (Decomposition state);

[0018] Figure 3 Cross-sectional view of a preferred embodiment of the present utility model Figure 2 (Combined states);

[0019] Figure 4 This is a schematic diagram of the exploded structure of the sample of the preferred embodiment of this utility model. Detailed Implementation

[0020] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0021] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0023] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0024] Reference Figures 1 to 4 A sample preparation fixture for bonding strength test specimens includes an upper base 10, a lower base 20, several metal test blocks 30, a retainer 40, and several rubber test pieces 50.

[0025] The upper base 10 has a mating groove 11. The lower base 20 is detachably inserted into the mating groove 11. Several metal test blocks 30 are evenly arranged in the upper base 10 and the lower base 20. The metal test blocks 30 in the upper base 10 correspond one-to-one with the metal test blocks 30 in the lower base 20. A retainer 40 is arranged between the upper base 10 and the lower base 20. The retainer 40 has handles 41 at both ends. Several test piece holes 42 are evenly arranged on the retainer 40. The test piece holes 42 correspond one-to-one with the metal test blocks 30. Several rubber test pieces 50 are arranged one-to-one in the test piece holes 42. One side of the rubber test piece 50 can be bonded to the metal test block 30 in the upper base 10, and the other side can be bonded to the metal test block 30 in the lower base 20. Moving the retainer 40 can move the rubber test pieces 50 together.

[0026] The application scenarios of the adhesive strength test sample preparation tool of this utility model are as follows:

[0027] First, several metal test blocks 30 are placed neatly into the upper base 10 and the lower base 20. At the same time, rubber test pieces 50 are placed one by one into the test piece holes 42. Then, the holder 40 and several rubber test pieces 50 are moved by holding the handle 41 to move the holder 40 and the rubber test pieces 50 onto the lower base 20. Then, the upper base 10 is aligned with the lower base 20. Then, the metal test blocks 30 in the upper base 10 are pushed vertically towards the lower base 20. The metal test blocks 30 in the upper base 10 push the rubber test pieces 50 to adhere to the metal test blocks 30 in the lower base 20. At this time, both sides of the rubber test pieces 50 are bonded to the metal test blocks 30, and the sample preparation is completed.

[0028] Understandably, the upper base 10 and lower base 20 can accurately position the metal test block 30. The mating groove 11 of the upper base 10 allows the lower base 20 to accurately align with it, thus ensuring the coaxiality of the metal test block 30 within the upper and lower bases 10. The rubber test piece 50 is positioned by the retainer 40, and then moved and bonded by the handle 41. This allows the rubber test piece 50 to accurately bond with the metal test block 30 within the upper and lower bases 10 and 20, avoiding manual operation by sample preparation personnel, reducing the probability of introducing dust, moisture, and other impurities, and improving efficiency.

[0029] Reference Figures 1 to 4 The upper base 10 is provided with an upper guide plate 12, and a plurality of upper guide holes 121 are evenly opened on the upper guide plate 12. A plurality of metal test blocks 30 are inserted into the plurality of upper guide holes 121. The lower base 20 is provided with a lower guide plate 21, and a plurality of lower guide holes 211 are evenly opened on the lower guide plate 21.

[0030] It is understandable that the metal test block 30 is guided and limited by a number of upper guide holes 121 and a number of lower guide holes 211 to ensure the coaxiality of the corresponding metal test block 30 during bonding.

[0031] Reference Figures 1 to 4 The metal test block 30 includes an adhesive end 31 and a guide end 32, with the diameter of the adhesive end 31 being larger than that of the guide end 32.

[0032] Reference Figures 1 to 4 The guide end 32 has a pin hole 321 and is inserted into the upper guide hole 121 and / or the lower guide hole 211.

[0033] Understandably, the pin hole 321 facilitates the connection of the tensioning device during subsequent experiments on the sample.

[0034] It should be noted that, in the embodiments of this utility model, the diameters of the upper guide hole 121 and the lower guide hole 211 are equal to the outer diameter of the guide end 32.

[0035] It is understandable that the outer circumference of the guide end 32 is in contact with the hole walls of the upper guide hole 121 and the lower guide hole 211, which can ensure the coaxiality of the metal specimen 30 and improve the stability of the specimen.

[0036] It should be noted that in the embodiments of this utility model, the test piece hole 42 and the rubber test piece 50 are interference-fitted.

[0037] It is understandable that the rubber test piece 50 has elastic deformation capability and can be fixed in the test piece hole 42 through interference fit.

[0038] Reference Figures 1 to 4The upper base 10 has retainer clearance grooves 13 on both sides, and the handle 41 can move in the retainer clearance grooves 13. The lower base 20 has retainer positioning grooves 22 on both sides, and the handle 41 can be embedded in the retainer positioning grooves 22.

[0039] Understandably, when the retainer 40 is placed into the upper base 10, the retainer clearance groove 13 can avoid the handle 41, allowing the rubber test piece 50 on the retainer 40 to contact the metal test block 30 and complete the bonding. The retainer positioning groove 22 can avoid the handle 41 when the lower base 20 is connected to the upper base 10, and also serve to position the lower base 20.

[0040] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A tooling for preparing adhesive strength test specimens, characterized in that, include: The upper base (10) has a docking groove (11); The lower base (20) is detachably inserted into the docking groove (11); Several metal test blocks (30) are evenly arranged in the upper base (10) and the lower base (20), and the several metal test blocks (30) in the upper base (10) and the several metal test blocks (30) in the lower base (20) correspond one-to-one; A retainer (40) is disposed between the upper base (10) and the lower base (20). The retainer (40) has handles (41) at both ends. A plurality of test piece holes (42) are evenly opened on the retainer (40), and the plurality of test piece holes (42) correspond one-to-one with the plurality of metal test blocks (30). Several rubber test pieces (50) are placed one by one in the test piece hole (42). One side of the rubber test piece (50) can be bonded to the metal test block (30) in the upper base (10), and the other side can be bonded to the metal test block (30) in the lower base (20). Moving the retainer (40) can drive several rubber test pieces (50) to move together.

2. The adhesive strength sample preparation fixture according to claim 1, characterized in that, The upper base (10) is provided with an upper guide plate (12), and a plurality of upper guide holes (121) are evenly opened on the upper guide plate (12). A plurality of metal test blocks (30) are inserted in the plurality of upper guide holes (121). The lower base (20) is provided with a lower guide plate (21), and a plurality of lower guide holes (211) are evenly opened on the lower guide plate (21).

3. The adhesive strength sample preparation fixture according to claim 2, characterized in that, The metal test block (30) includes an adhesive end (31) and a guide end (32), wherein the diameter of the adhesive end (31) is larger than that of the guide end (32).

4. The adhesive strength sample preparation fixture according to claim 3, characterized in that, The guide end (32) has a pin hole (321) and is inserted into the upper guide hole (121) and / or the lower guide hole (211).

5. The adhesive strength sample preparation fixture according to claim 3, characterized in that, The diameters of the upper guide hole (121) and the lower guide hole (211) are equal to the outer diameter of the guide end (32).

6. The adhesive strength sample preparation fixture according to claim 1, characterized in that, The test piece hole (42) and the rubber test piece (50) are interference-fitted.

7. The adhesive strength sample preparation fixture according to claim 1, characterized in that, The upper base (10) has retainer clearance grooves (13) on both sides, and the handle (41) can move in the retainer clearance grooves (13). The lower base (20) has retainer positioning grooves (22) on both sides, and the handle (41) can be embedded in the retainer positioning grooves (22).

Images