Tool for manufacturing adhesive shear strength sample

Abstract

The utility model provides a tool for manufacturing an adhesive shear strength sample, which comprises a first base station and a first test piece arranged on the first base station, guide blocks fixedly connected with the first base station are arranged on the two sides of the first test piece, a movable scraping plate is connected between the two guide blocks in a sliding mode, the movable scraping plate can move left and right relative to the guide blocks, and the maximum moving distance of the movable scraping plate is matched with the coating length of the adhesive on the surface of the first test piece; a certain distance is formed between the bottom surface of the movable scraping plate and the surface of the first test piece, and the distance is matched with the coating thickness of an adhesive on the surface of the first test piece. The problems that in the prior art, due to the fact that the coating range of the adhesive on the surface of the test piece needs to be manually measured, the sample preparation efficiency is low, measurement errors are easily caused, and consequently the test result is inaccurate are effectively solved. And the problem that the thickness of a glue layer is not uniform easily due to the fact that the control difficulty of the using force of the scraper is large in the glue scraping process is also solved.

Description

Technical Field

[0001] The utility model relates to the technical field of sample preparation equipment, in particular to a tool for preparing adhesive shear strength samples. Background Art

[0002] The tensile shear strength of adhesives is an important indicator to measure the bonding performance of adhesives. Therefore, newly developed adhesives often need to be tested for parameters such as their shear strength performance. At present, the sample preparation method used in the tensile shear strength test of adhesives is generally to prepare two rigid test pieces (taking aluminum sheets as an example). First, two standard-sized aluminum sheets are wiped clean with alcohol or other solvents; then a ruler is used to draw a line with a length of 12.5 mm on the surface of one end of one of the aluminum sheets, and glue is applied on the surface of the end of the aluminum sheet according to the length of the line, and then the excess glue is scraped off with a scraper, leaving a certain thickness of glue layer, and a copper wire with a diameter of 0.2 mm is placed on the glue layer; then one end of the other aluminum sheet is overlapped on the top of the glue layer, and after pressing the overlapping part of the two aluminum sheets with fingers, it is clamped with a clamp to complete the sample preparation.

[0003] However, since the range of adhesive coating on the surface of the test piece needs to be manually controlled, there are problems such as low sample preparation efficiency, easy measurement errors, and inaccurate test results. Moreover, in the process of scraping glue, the tester needs to stably and accurately control the force of the scraper, which is not only difficult to operate, but also requires a lot of manpower. If the force of the scraper is unstable, the thickness of the glue layer will be uneven. For example, if the force of the scraper is too great, the thickness of the glue layer will be too thin, resulting in the thickness not meeting the test standard; if the force of the scraper is too light, the thickness of the glue layer will be too thick, and at the same time, during the pressing process, too much glue will be squeezed out, which will not only affect the test results, but also cause material waste. Summary of the invention

[0004] The utility model aims to provide a tool for making adhesive shear strength test specimens, which not only effectively solves the problem in the prior art that the range of adhesive coating on the surface of the test piece needs to be manually measured, resulting in low sample preparation efficiency and easy measurement errors, thus leading to inaccurate test results. It also solves the technical problem that in the process of scraping glue, the control of the force of the scraper is difficult, which easily leads to uneven thickness of the glue layer.

[0005] In order to solve the above technical problems, the utility model provides a tooling for making adhesive shear strength test specimens, including a first base and a first test piece whose surface needs to be coated with adhesive, the first test piece is arranged on the first base; guide blocks fixedly connected to the first base are arranged on both sides of the first test piece, and a movable scraper is slidably connected between the two guide blocks, the movable scraper can move left and right relative to the guide blocks, and the maximum moving distance of the movable scraper is adapted to the coating length of the adhesive on the surface of the first test piece, a certain distance is arranged between the bottom surface of the movable scraper and the surface of the first test piece, and the distance is adapted to the coating thickness of the adhesive on the surface of the first test piece.

[0006] Furthermore, the movable scraper includes a rubber scraping part and sliding parts fixed at both ends of the rubber scraping part, and a guide groove matched with the sliding part is opened on the guide block. The movable scraper is slidably connected to the guide groove of the guide block through the sliding part.

[0007] Furthermore, the guide groove includes a longitudinal slide and a transverse slide, which are interconnected to form an L-shaped guide groove; a rubber layer is coated on the surface of the end of the first test piece opposite to the transverse slide along the length direction of the transverse slide, and the length of the rubber layer is consistent with the length of the transverse slide.

[0008] Furthermore, a positioning block fixedly connected to the first base is provided at one end of the guide block, a limiting slide is slidably connected between the positioning blocks, and the limiting slide contacts the first test piece at one end relative to the first test piece.

[0009] Furthermore, the limiting slide includes a limiting plate and sliders fixed at both ends of the limiting plate. The positioning block is provided with a sliding groove adapted to the slider, and the limiting slide is movably connected to the sliding groove of the positioning block through the slider; when the slider is located at the left end of the sliding groove, the end of the first test piece away from the limiting plate is flush with the first base; when the slider slides from the left end of the sliding groove to the right end of the sliding groove, the limiting plate pushes the first test piece to move to the right and drives the rubber layer to move outside the first base.

[0010] Furthermore, the length of the slide groove is consistent with the length of the transverse slideway.

[0011] Furthermore, a first fixing member for pressing the first test piece is provided between the guide block and the positioning block, and the first fixing member is detachably fixed on the first base.

[0012] Furthermore, it also includes a second base and a second test piece arranged on the second base; the second base and the first base are arranged at a distance from each other and close to one end of the positioning block; the second test piece and the first test piece are arranged in an up-down offset manner and overlapped on the surface of the adhesive layer; the spacing between the first base and the second base is consistent with the length of the slide groove.

[0013] Furthermore, the second base includes a flip plate, a base and a hinge, and the flip plate is rotatably connected to the base by the hinge; the second test piece is arranged on the flip plate, and one end of the second test piece abuts against the end of the flip plate, and the other end extends outward along the side away from the flip plate; a second fixing member for pressing the second test piece is provided at the upper end of the second test piece, and the second fixing member is detachably fixed to the flip plate.

[0014] Furthermore, let the length of the second test piece extending outward along the side away from the flip plate be A, let the distance between the first base and the second base be B; A and B satisfy the following relationship: A=B.

[0015] Compared with the prior art, the technical solution provided by the utility model has the following advantages:

[0016] (1) The tooling provided by the utility model for making adhesive shear strength specimens is provided with a first base, a guide block, a movable scraper and a first test piece. Through the coordinated use of the guide block, the movable scraper and the first test piece, the range of adhesive coating on the surface of the first test piece can be quickly and accurately determined, which not only improves the efficiency of sample preparation, but also reduces manual measurement errors. Specifically, the movable scraper is slidably set between the guide blocks, and the movable scraper can be moved left and right relative to the guide blocks, so as to determine the coating range of the adhesive on the surface of the first test piece and to flatten the adhesive on the surface of the first test piece. When the movable scraper is located at the starting position on the left side of the guide block, the movable scraper is located above the first test piece. Thus, with the movable scraper as the limit, the end of the first test piece relative to the right side of the movable scraper is the coating area of ​​the adhesive, so there is no need for manual measurement, which effectively solves the problem in the prior art that the range of adhesive coating on the surface of the test piece needs to be manually measured, resulting in low sample preparation efficiency and easy measurement errors, thereby leading to inaccurate test results. In addition, since a certain distance is set between the movable scraper and the first test piece, and the distance is adapted to the coating thickness of the adhesive on the surface of the first test piece, after the movable scraper is used to scrape the coated area of ​​the adhesive on the surface of the first test piece, the coating thickness of the adhesive on the surface of the first test piece remains consistent, which effectively solves the technical problems such as uneven thickness of the adhesive layer caused by the difficulty in controlling the force of the scraper during the scraping process.

[0017] (2) The tooling provided by the utility model for making adhesive shear strength test specimens has sliding parts at both ends of the scraping part, and guide grooves are provided on the guide block. Through the cooperation of the sliding parts and the guide grooves, the movable scraper can slide along the horizontal direction of the guide groove, ensuring that the distance between the bottom surface of the movable scraper and the surface of the first test piece remains consistent, thereby making the thickness of the adhesive layer consistent after scraping.

[0018] (3) The tooling provided by the utility model for making adhesive shear strength test specimens, by connecting the longitudinal slide with the transverse slide to form an L-shaped guide groove, can not only facilitate the placement of the movable scraper at the starting end of the transverse slide, that is, placing the movable scraper at the corner between the longitudinal slide and the transverse slide to serve as the boundary of the adhesive coating area, but also ensure that the movable scraper can slide in the horizontal direction, thereby ensuring that the thickness of the adhesive layer remains consistent after scraping the glue.

[0019] (4) The tooling provided by the utility model for making adhesive shear strength test specimens has sliders at both ends of the limit plate and a slide groove on the positioning block. The limit plate can slide left and right relative to the slide groove through the cooperation between the slider and the slide groove. In addition, when the slider is located at the left end of the slide groove, the end of the first test piece away from the limit plate is flush with the first base, which is used to facilitate the scraping of the adhesive coating area on the surface of the end of the first test piece away from the limit plate; when the slider slides from the left end of the slide groove to the right end of the slide groove, the limit plate pushes the first test piece to move to the right and drives the adhesive layer to move outside the first base, which is used to facilitate the overlap of the first test piece and the second test piece.

[0020] (5) The tooling provided by the utility model for making adhesive shear strength test specimens sets the length of the slide groove and the length of the lateral slideway to be consistent in size, so that when the slider slides from the left end of the slide groove to the right end of the slide groove, the length of the first test piece pushed out of the first base by the limiting plate is exactly the length of the adhesive layer. This not only facilitates the overlapping of the first test piece and the second test piece, but also improves the alignment accuracy between the first test piece and the second test piece, thereby improving the accuracy of the test results.

[0021] (6) The tooling for making adhesive shear strength test specimens provided by the utility model has a first fixing member disposed between the guide block and the positioning block. When the first test piece is scraped with glue, the first fixing member is tightened to press the first test piece, thereby preventing the first test piece from shifting and affecting the scraping effect. When the first test piece and the second test piece are overlapped, the first fixing member is tightened to press the first test piece, thereby preventing the first test piece from shifting and affecting the alignment accuracy with the second test piece.

[0022] (7) The tooling for making adhesive shear strength test specimens provided by the utility model sets the distance between the first base and the second base to the same length as the slide groove, so that the first test piece is pushed out of the first base by the length, that is, the length of the adhesive layer is exactly the distance between the first base and the second base. This can not only be used to check whether the adhesive coating area meets the standard, but also improve the alignment accuracy between the first test piece and the second test piece.

[0023] (8) The tooling for making adhesive shear strength test specimens provided by the utility model has a second base provided with a flip plate, a base and a hinge. Through the coordinated use of the flip plate, the base and the hinge, the flip plate can be rotated around the rotating shaft of the hinge, thereby facilitating the overlap of the second test piece on the first test piece, which not only reduces the overlap difficulty, but also improves the alignment accuracy between the first test piece and the second test piece. In addition, by providing a second fixing member at the upper end of the second test piece, which is used to fix the second test piece on the flip plate, the stability of the second test piece is ensured when the flip plate is flipped, and the displacement of the second test piece is prevented from affecting the overlap effect.

[0024] (9) The tooling provided by the utility model for making adhesive shear strength test specimens has a length of the second test piece extending outward along the side away from the flip plate that is equal to the distance between the first base and the second base. When the flip plate drives the second test piece to rotate downward in a counterclockwise direction, the second test piece can be accurately overlapped on the adhesive layer on the first test piece, thereby greatly improving the alignment accuracy between the first test piece and the second test piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the prior art and the embodiments of the present application, the drawings required for use in the description of the prior art and the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 The utility model is a structural schematic diagram of a tooling overlap process for preparing an adhesive shear strength test specimen.

[0027] Figure 2 The utility model is a structural schematic diagram of a tooling for making adhesive shear strength test specimens after sample preparation.

[0028] Figure 3 The utility model is a structural schematic diagram of a tooling for making adhesive shear strength test specimens before scraping glue.

[0029] Figure 4 for Figure 3 Cross-sectional view of .

[0030] Explanation of the accompanying drawings: first base 100, guide block 110, guide groove 111, longitudinal slide 111A, transverse slide 111B, movable scraper 120, glue scraping part 121, sliding part 122, positioning block 130, slide groove 131, limiting slide plate 140, limiting plate 141, slider 142, first fixing member 150, first test piece 200, glue layer 210, second base 300, flip plate 310, second fixing member 311, handle 312, base 320, hinge 330, second test piece 400, limiting clamp 500. DETAILED DESCRIPTION

[0031] In order to better understand the purpose, structure and function of the utility model, the following is a further detailed description of a tool for making an adhesive shear strength specimen provided by the utility model in conjunction with the accompanying drawings, so that technical personnel in the field can better understand the utility model and implement it. However, the examples given are not intended to limit the utility model. In this embodiment, it should be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the utility model.

[0032] In addition, if the connection or fixing method between components is not particularly described in this specific embodiment, the connection or fixing method can be through bolt fixing or pin fixing, or pin shaft connection and the like commonly used in the prior art, and therefore, it will not be described in detail in this embodiment.

[0033] See also Figures 1 to 4 As shown, a tool for making an adhesive shear strength specimen comprises a first base 100 and a first test piece 200 whose surface needs to be coated with an adhesive, wherein the first test piece 200 is arranged on the first base 100; guide blocks 110 fixedly connected to the first base 100 are arranged on both sides of the first test piece 200, and a movable scraper 120 is slidably connected between the two guide blocks 110, the movable scraper 120 can move left and right relative to the guide blocks 110, and the maximum moving distance of the movable scraper 120 is adapted to the coating length of the adhesive on the surface of the first test piece 200, and a certain distance is arranged between the bottom surface of the movable scraper 120 and the surface of the first test piece 200, and the distance is adapted to the coating thickness of the adhesive on the surface of the first test piece 200.

[0034] The tooling provided by the utility model for making adhesive shear strength test specimens is provided with a first base 100, a guide block 110, a movable scraper 120 and a first test piece 200. Through the coordinated use of the guide block 110, the movable scraper 120 and the first test piece 200, the range of adhesive coating on the surface of the first test piece 200 can be quickly and accurately determined, which not only improves the efficiency of sample preparation, but also reduces manual measurement errors. Specifically, the movable scraper 120 is slidably set between the guide blocks 110, and the movable scraper 120 can be moved left and right relative to the guide blocks 110, so as to determine the coating range of the adhesive on the surface of the first test piece 200, and to flatten the adhesive on the surface of the first test piece 200. When the movable scraper 120 is located at the starting position on the left side of the guide block 110, the movable scraper 120 is located above the first test piece 200. Therefore, the end of the first test piece 200 relative to the right side of the movable scraper 120 is the adhesive coating area, so there is no need for manual measurement, which effectively solves the problem that the existing technology needs to manually measure the range of adhesive coating on the test piece surface, which makes the sample preparation efficiency low and easily causes measurement errors, thereby causing inaccurate test results. In addition, since a certain distance is set between the movable scraper 120 and the first test piece 200, and the distance is adapted to the coating thickness of the adhesive on the surface of the first test piece 200, after the adhesive coating area on the surface of the first test piece 200 is scraped by the movable scraper 120, the coating thickness of the adhesive on the surface of the first test piece 200 is kept consistent, which effectively solves the technical problems such as the difficulty in controlling the use force of the scraper during the scraping process, which easily leads to uneven thickness of the adhesive layer 210.

[0035] In a preferred embodiment, the movable scraper 120 includes a scraping part 121 and sliding parts 122 fixed at both ends of the scraping part 121. The guide block 110 is provided with a guide groove 111 adapted to the sliding part 122. The movable scraper 120 is slidably connected to the guide groove 111 of the guide block 110 through the sliding part 122. When applying adhesive, the movable scraper 120 slides into the guide groove 111 from one end and is placed at the starting end on the left side of the guide groove 111. After the adhesive application operation is completed, the movable scraper 120 moves to the end of the guide groove 111 until it slides out of the guide groove 111 to complete the scraping operation.

[0036] Since sliding parts 122 are provided at both ends of the scraping part 121, a guide groove 111 begins to be provided on the guide block 110. Through the cooperation of the sliding part 122 and the guide groove 111, the movable scraper 120 can slide along the horizontal direction of the guide groove 111, ensuring that the distance between the bottom surface of the movable scraper 120 and the surface of the first test piece 200 is consistent, so that the thickness of the glue layer 210 after scraping is consistent.

[0037] In a preferred embodiment, the guide groove 111 includes a longitudinal slide 111A and a transverse slide 111B, the longitudinal slide 111A and the transverse slide 111B are connected to each other to form an L-shaped guide groove 111; an end of the first test piece 200 opposite to the transverse slide 111B is coated with a glue layer 210 on the surface along the length direction of the transverse slide 111B, and the length of the glue layer 210 is consistent with the length of the transverse slide 111B. The opening of the longitudinal slide 111A is located at the upper end of the guide block 110, and the opening of the transverse slide 111B is located on the right side wall of the guide block 110, which is used to facilitate the sliding in and out of the movable scraper 120. In addition, by connecting the longitudinal slide 111A with the transverse slide 111B and forming an L-shaped guide groove 111, it is not only convenient to place the movable scraper 120 at the starting end of the transverse slide 111B, that is, to place the movable scraper 120 at the corner between the longitudinal slide 111A and the transverse slide 111B to serve as the boundary of the adhesive coating area, but also to ensure that the movable scraper 120 can slide in the horizontal direction, thereby ensuring that the thickness of the glue layer 210 remains consistent after scraping the glue.

[0038] In a preferred embodiment, a positioning block 130 fixedly connected to the first base 100 is further provided at one end of the guide block 110, a limiting slide 140 is slidably connected between the positioning blocks 130, and the limiting slide 140 is in contact with the first test piece 200 relative to one end thereof.

[0039] Specifically, a positioning block 130 is provided at one end of the guide block 110, and a limiting slide 140 is slidably connected between the positioning blocks 130. The limiting slide 140 pushes the first test piece 200 to move to the right end to facilitate the overlap of the first test piece 200 and the second test piece 400.

[0040] In a preferred embodiment, the limiting slide 140 includes a limiting plate 141 and a slider 142 fixed at both ends of the limiting plate 141. A slide groove 131 adapted to the slider 142 is provided on the positioning block 130, and the limiting slide 140 is movably connected to the slide groove 131 of the positioning block 130 through the slider 142; when the slider 142 is located at the left end of the slide groove 131, the end of the first test piece 200 away from the limiting plate 141 is flush with the first base 100; when the slider 142 slides from the left end of the slide groove 131 to the right end of the slide groove 131, the limiting plate 141 pushes the first test piece 200 to move to the right, and drives the adhesive layer 210 to move outside the first base 100.

[0041] Since the two ends of the limiting plate 141 are provided with sliders 142 and the positioning block 130 is provided with a slide groove 131, the limiting plate 141 can slide left and right relative to the slide groove 131 through the cooperation between the slider 142 and the slide groove 131. In addition, when the slider 142 is located at the left end of the slide groove 131, the end of the first test piece 200 away from the limiting plate 141 is flush with the first base 100, which is used to facilitate the scraping of the adhesive coating area on the surface of the end of the first test piece 200 away from the limiting plate 141; when the slider 142 slides from the left end of the slide groove 131 to the right end of the slide groove 131, the limiting plate 141 pushes the first test piece 200 to move rightward, and drives the adhesive layer 210 to move outside the first base 100, which is used to facilitate the overlap of the first test piece 200 and the second test piece 400.

[0042] In a preferred embodiment, the length of the slide groove 131 is consistent with the length of the transverse slideway 111B. By setting the length of the slide groove 131 and the length of the transverse slideway 111B to be consistent, when the slider 142 slides from the left end of the slide groove 131 to the right end of the slide groove 131, the length of the first test piece 200 pushed out of the first base 100 by the limiting plate 141 is just the length of the adhesive layer 210, which not only facilitates the overlap of the first test piece 200 and the second test piece 400, but also improves the alignment accuracy between the first test piece 200 and the second test piece 400, thereby improving the accuracy of the test results.

[0043] In a preferred embodiment, a first fixing member 150 for pressing the first test piece 200 is further provided between the guide block 110 and the positioning block 130, and the first fixing member 150 is detachably fixed to the first base 100. By providing the first fixing member 150 between the guide block 110 and the positioning block 130, when the first test piece 200 is scraped, the first fixing member 150 is tightened to press the first test piece 200, so as to prevent the first test piece 200 from shifting and affecting the scraping effect, wherein the first fixing member 150 needs to be loosened before the limiting plate 141 pushes the first test piece 200 to move. When the first test piece 200 and the second test piece 400 are overlapped, the first fixing member 150 is tightened to press the first test piece 200, so as to prevent the first test piece 200 from shifting and affecting the alignment accuracy with the second test piece 400.

[0044] In a preferred embodiment, a second base 300 and a second test piece 400 disposed on the second base 300 are also included; the second base 300 and the first base 100 are spaced apart from each other and close to one end of the positioning block 130; the second test piece 400 and the first test piece 200 are staggered up and down and overlapped on the surface of the adhesive layer 210; the spacing between the first base 100 and the second base 300 is consistent with the length of the slide groove 131. The second base 300 is disposed on one side of the first base 100 for placing the second test piece 400, so as to facilitate the overlap of the first test piece 200 and the second test piece 400. In addition, by setting the distance between the first base 100 and the second base 300 to the same length as the slide groove 131, the first test piece 200 is pushed out of the first base 100 by the length, that is, the length of the adhesive layer 210 is exactly the distance between the first base 100 and the second base 300. This can not only be used to check whether the adhesive coating area meets the standards, but also improve the alignment accuracy between the first test piece 200 and the second test piece 400.

[0045] In a preferred embodiment, the second base 300 includes a flip plate 310, a base 320 and a hinge 330, wherein the flip plate 310 is rotatably connected to the base 320 via the hinge 330; the second test piece 400 is disposed on the flip plate 310, and one end of the second test piece 400 abuts against the end of the flip plate 310, and the other end extends outward along a side away from the flip plate 310; the second test piece 400 is provided with a second fixing member 311 for pressing the second test piece 400 at the upper end, and the second fixing member 311 is detachably fixed to the flip plate 310. The second fixing member 311 is also provided with a handle 312 for conveniently rotating the flip plate 310.

[0046] Since the second base 300 is provided with a flip plate 310, a base 320 and a hinge 330, the flip plate 310 can be rotated around the rotation axis of the hinge 330 through the cooperation between the flip plate 310, the base 320 and the hinge 330, so that the second test piece 400 can be overlapped on the first test piece 200, which not only reduces the overlap difficulty, but also improves the alignment accuracy between the first test piece 200 and the second test piece 400. In addition, by providing a second fixing member 311 at the upper end of the second test piece 400, it is used to fix the second test piece 400 on the flip plate 310, so as to ensure the stability of the second test piece 400 when the flip plate 310 is flipped, and prevent the second test piece 400 from shifting and affecting the overlap effect.

[0047] In a preferred embodiment, let the length of the second test piece 400 extending outward along the side away from the flip plate 310 be A, let the distance between the first base 100 and the second base 300 be B; A and B satisfy the following relationship: A=B. Since the length of the second test piece 400 extending outward along the side away from the flip plate 310 is equal to the distance between the first base 100 and the second base 300, when the flip plate 310 drives the second test piece 400 to rotate downward in the counterclockwise direction, the second test piece 400 can be accurately overlapped on the adhesive layer 210 on the first test piece 200, which greatly improves the alignment accuracy between the first test piece 200 and the second test piece 400.

[0048] The utility model provides a tool for making an adhesive shear strength test specimen, and the use method is as follows:

[0049] First, take the first test piece 200 and the second test piece 400 of standard thickness respectively, and wipe them clean with alcohol or other solvents; then, place the limit plate 141 at the starting end of the slide groove 131, and place the first test piece 200 on the first base 100, so that the left end of the first test piece 200 abuts against the limit plate 141, and the right end of the first test piece 200 is flush with the right end of the first base 100, and the first test piece 200 is fixed by the first fixing member 150; then, the movable scraper 120 is stopped at the starting position of the transverse slide 111B, and the adhesive is applied to the surface of one end of the first test piece 200 relative to the right side of the movable scraper 120 with the movable scraper 120 as the boundary, and the movable scraper 120 is pushed The movable scraper 120 is slid to the right along the transverse slide 111B until it slides out of the first base 100, the scraping of glue is completed and a 0.2 mm copper wire is placed on the glue layer 210; then the first fixing member 150 is loosened and the limiting plate 141 is pushed to slide to the right side of the slide groove 131 until the slider 142 is located at the right end of the slide groove 131, so that the glue layer 210 on the first test piece 200 just extends out of the first base 100 and the first fixing member 150 is tightened; the second test piece 400 can be hand-held to align with the area of ​​the glue layer 210 and overlap the first test piece 200 and press it, and then the overlapping part of the first test piece 200 and the second test piece 400 is fixed by the limiting clamp 500, and the test piece is taken out to complete the sample preparation. Alternatively, the flip plate 310 is rotated upward in the clockwise direction through the handle 312, and the first fixing piece 150 is loosened and the second test piece 400 is inserted so that the first end of the second test piece 400 abuts against the end of the flip plate 310. Then, the first fixing piece 150 is tightened to fix the second test piece 400, and the flip plate 310 is rotated downward in the counterclockwise direction through the handle 312 until the flip plate 310 and the base 320 are closed to each other, so that the second end of the second test piece 400 overlaps and presses the first test piece 200; finally, the overlapping part of the first test piece 200 and the second test piece 400 is fixed by the limit clamp 500, and the test piece is taken out to complete the sample preparation.

[0050] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A tool for making adhesive shear strength test specimens, comprising a first base and a first test piece whose surface needs to be coated with adhesive, wherein the first test piece is arranged on the first base; characterized in that: Guide blocks fixedly connected to the first base are arranged on both sides of the first test piece, and a movable scraper is slidably connected between the two guide blocks. The movable scraper can move left and right relative to the guide blocks, and the maximum moving distance of the movable scraper is adapted to the coating length of the adhesive on the surface of the first test piece. A certain distance is arranged between the bottom surface of the movable scraper and the surface of the first test piece, and the distance is adapted to the coating thickness of the adhesive on the surface of the first test piece.

2. The tooling for making adhesive shear strength test specimens according to claim 1, characterized in that: The movable scraper includes a rubber scraping part and sliding parts fixed at both ends of the rubber scraping part. The guide block is provided with a guide groove matched with the sliding part. The movable scraper is slidably connected in the guide groove of the guide block through the sliding part.

3. The tooling for preparing adhesive shear strength test specimens according to claim 2, characterized in that: The guide groove comprises a longitudinal slideway and a transverse slideway, wherein the longitudinal slideway and the transverse slideway are connected to each other to form an L-shaped guide groove; An adhesive layer is coated on the surface of the end of the first test piece opposite to the transverse slide along the length direction of the transverse slide, and the length of the adhesive layer is consistent with the length of the transverse slide.

4. The tooling for preparing adhesive shear strength test specimens according to claim 3, characterized in that: A positioning block fixedly connected to the first base is further provided at one end of the guide block, a limiting slide is slidably connected between the positioning blocks, and one end of the limiting slide relative to the first test piece contacts the first test piece.

5. The tooling for preparing adhesive shear strength test specimens according to claim 4, characterized in that: The limiting slide plate includes a limiting plate and sliders fixed at both ends of the limiting plate, the positioning block is provided with a slide groove adapted to the slider, and the limiting slide plate is movably connected to the slide groove of the positioning block through the slider; When the slider is located at the left end of the slide groove, the end of the first test piece away from the limiting plate is flush with the first base; when the slider slides from the left end of the slide groove to the right end of the slide groove, the limiting plate pushes the first test piece to move to the right and drives the glue layer to move outside the first base.

6. The tooling for preparing adhesive shear strength test specimens according to claim 5, characterized in that: The length of the slide groove is consistent with the length of the transverse slideway.

7. The tooling for preparing adhesive shear strength test specimens according to claim 6, characterized in that: A first fixing member for pressing the first test piece is also arranged between the guide block and the positioning block, and the first fixing member is detachably fixed on the first base.

8. The tool for preparing adhesive shear strength test specimen according to any one of claims 5 to 7, characterized in that: It also includes a second base and a second test piece arranged on the second base; the second base is spaced apart from the first base and is close to one end of the positioning block; the second test piece is staggered up and down from the first test piece and overlaps the surface of the adhesive layer; The distance between the first base and the second base is consistent with the length of the slide groove.

9. The tooling for preparing adhesive shear strength test specimens according to claim 8, characterized in that: The second base comprises a flip plate, a base and a hinge, wherein the flip plate is rotatably connected to the base through the hinge; the second test piece is arranged on the flip plate, and one end of the second test piece abuts against the end of the flip plate, and the other end extends outward along a side away from the flip plate; A second fixing piece for pressing the second test piece is disposed at the upper end of the second test piece, and the second fixing piece is detachably fixed to the flip plate.

10. The tooling for preparing adhesive shear strength test specimens according to claim 9, characterized in that: Suppose the length of the second test piece extending outward along the side away from the flip plate is A, and the distance between the first base and the second base is B; the following relationship is satisfied between A and B: A=B.

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