An auxiliary device for preparing coating test samples of different gauges

Abstract

The utility model belongs to the technical field of coating test tool, specifically disclose a kind of for preparing the auxiliary device of different specification coating test sample, including bottom plate, its immediately above detachably connected with hole site board, different shapes and sizes of custom hole are spaced apart and are equipped on hole site board, and the forming assembly is equipped in each custom hole on bottom plate;The placement platform of the top of the forming assembly is matched with the corresponding custom hole and is contained in the hole, and the custom hole covers circular hole, rectangular hole, square hole, horse's hoof shape hole etc., and its size is preset according to test standard, to prepare the sample of different shape and size;Forming assembly is lifting assembly, and driving placement platform is axially lifted along custom hole, and the height difference of two is adjusted, to prepare the sample of different thickness.The auxiliary device provided by the utility model can synchronously prepare different specification samples, improve the consistency, integrity and preparation efficiency of sample, and guarantee the accuracy and reliability of test result.

Description

Technical Field

[0001] This utility model belongs to the technical field of coating testing equipment, specifically relating to an auxiliary device for preparing coating test samples of different specifications. Background Technology

[0002] When conducting performance tests on coatings, electromagnetic parameters serve as a crucial evaluation indicator of the coating's stealth performance, and accurate testing relies on standardized sample preparation. Currently, the preparation of samples for testing electromagnetic parameters of coatings often involves manual coating, curing, and then cutting: the coating material is first applied to a flat substrate, and after curing, it is manually cut according to the size specifications required by different testing standards (such as waveguide method, free space method, etc.) using scissors, blades, or molds.

[0003] However, this traditional preparation method has the following drawbacks: First, poor dimensional consistency: manual cutting is prone to sample size deviations due to operational errors, especially for rectangular, ring-shaped samples, making it difficult to guarantee edge straightness and angular accuracy, directly affecting the repeatability of electromagnetic parameter tests; second, insufficient sample integrity: harder coating materials are prone to damage such as cracks and edge peeling during cutting, and the success rate of preparing complex structures such as hollow rings is even lower, leading to distorted test data; third, low efficiency: different test standards (such as sample sizes corresponding to different frequency bands) need to be prepared separately, and multiple coating and cutting processes are time-consuming and labor-intensive, and it is difficult to achieve simultaneous preparation of multiple specifications of the same batch of samples; fourth, low thickness control accuracy: coating thickness depends on manual coating experience and lacks quantitative adjustment methods, and the thickness deviation of the same batch of samples may exceed the allowable range of testing, affecting the comparative analysis of electromagnetic parameters.

[0004] The aforementioned problems lead to a decrease in the reliability and accuracy of test results, which restricts the efficiency and precision of electromagnetic property research on coating materials. Therefore, there is an urgent need for an auxiliary device that can efficiently prepare multi-specification, high-precision coating test samples.

[0005] In view of this, this utility model is hereby proposed. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide an auxiliary device for preparing coating test samples of different specifications. It is mainly used to solve the problems of poor specification consistency, easy damage to samples, low preparation efficiency and insufficient thickness control accuracy in the existing coating test sample preparation process. It is used to realize the preparation of samples of different specifications, high precision and integration, and to provide a standardized sample basis for electromagnetic parameter testing.

[0007] The objective of this utility model is achieved through the following technical solution:

[0008] This utility model provides an auxiliary device for preparing coating test samples of different specifications, including a base plate, a hole plate detachably connected to the top of the base plate, customized holes of different shapes and sizes are spaced apart on the hole plate, and a forming component is provided on the base plate at each customized hole.

[0009] The molding assembly includes a placement platform located on top of it, the outer contour of each placement platform matching a corresponding custom hole, and the top working surface of the placement platform being accommodated within the custom hole for preparing coating test samples of different shapes and sizes.

[0010] Preferably, the placement platform of the orifice plate and the forming component is made of polytetrafluoroethylene with a smooth and non-stick surface, which facilitates the removal of the coating material, reduces damage caused by adhesion when the sample is handled, and ensures the flatness of the coating surface, thereby improving the sample quality.

[0011] Furthermore, the customized holes include circular holes, rectangular holes, square holes, and horseshoe-shaped holes, and the size of the customized holes is preset according to the test standard;

[0012] Accordingly, the placement platform is circular, rectangular, square, or horseshoe-shaped, and the outer contour of the placement platform is fitted with the inner wall of the customized hole to form circular, rectangular, square, or horseshoe-shaped coating test samples.

[0013] Furthermore, when it is necessary to prepare a hollow annular coating electromagnetic parameter test sample, a cylindrical boss is provided at the center of the circular placement platform.

[0014] Furthermore, the base plate and the hole plate are detachably connected via a concave-convex structure.

[0015] Furthermore, the cross-section of the convex-concave structure is designed to be non-rotationally symmetrical to prevent relative rotation between the base plate and the hole plate.

[0016] Furthermore, the base plate and the hole plate are detachably connected by positioning pins and fasteners. The positioning pins are used to define the relative position of the base plate and the hole plate, and the fasteners are bolts or snap-fit ​​structures.

[0017] Furthermore, the forming component is a lifting component, and the placement platform is vertically and vertically disposed within the customized hole along the axis of the customized hole. Adjusting the height difference of the placement platform within the corresponding customized hole is used to prepare coating test samples of different thicknesses.

[0018] Furthermore, the molding component also includes a screw that is rotatably connected to the bottom of the placement platform. The screw is threadedly connected to a threaded hole in the base plate, and the end of the screw away from the placement platform is provided with a slotted or cross-shaped groove.

[0019] Furthermore, a bearing is fixedly installed at the bottom of the placement platform, and the top end of the screw is rotatably connected to the bearing.

[0020] Furthermore, the aperture plate is provided with scale markings around the edge of each customized aperture, which are used to indicate the thickness reference of the coating test sample.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The auxiliary device provided by this utility model can simultaneously prepare coating test samples of various shapes and sizes, such as circles, rectangles, squares, horseshoes, and rings, by pre-setting customized holes of different shapes and sizes on the hole plate and matching the placement platform inside the hole plate. This eliminates the need for subsequent cutting, effectively avoiding specification deviations and sample damage caused by manual cutting, and significantly improving sample consistency and integrity. In addition, the height difference between the placement platform and the customized holes is adjusted by a lifting component, and combined with the indication of the scale markings, quantitative control of coating thickness is achieved, solving the problem of insufficient thickness accuracy in traditional manual coating. Furthermore, the detachable connection design between the hole plate and the base plate, combined with the non-stick surface of polytetrafluoroethylene, facilitates sample demolding and device cleaning, and can adapt to the rapid switching of different testing standards, greatly improving sample preparation efficiency and providing standardized sample assurance for accurate coating testing. Attached Figure Description

[0023] The accompanying drawings are incorporated in and form part of this specification, and together with the description, serve to explain the principles of this invention.

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall front structure of the auxiliary device for preparing coating test samples of different specifications according to this utility model;

[0026] Figure 2 This is a schematic diagram of the overall structure of the auxiliary device for preparing coating test samples of different specifications according to this utility model;

[0027] Figure 3 This is a schematic diagram of the working principle and structure of the auxiliary device of this utility model;

[0028] Figure 4 This is a schematic diagram of the base plate structure in the auxiliary device of this utility model;

[0029] Figure 5 This is a schematic diagram of the hole plate structure in the auxiliary device of this utility model;

[0030] Figure 6 This is a schematic diagram of the molding component (the molding platform is circular) in the auxiliary device of this utility model;

[0031] Figure 7 This is a schematic diagram of the molding component (the molding platform is circular, and a cylindrical boss is provided at the center) in the auxiliary device of this utility model.

[0032] in:

[0033] 1 is the base plate; 11 is the threaded hole; 12 is the raised structure;

[0034] 2 is a hole plate; 21 is a custom hole; 22 is a groove structure;

[0035] 3 is the molding component; 31 is the placement platform; 32 is the screw; 33 is the bearing; 34 is the cylindrical boss. Detailed Implementation

[0036] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this invention. Rather, they are merely examples of apparatuses consistent with some aspects of this invention as detailed in the appended claims.

[0037] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Example

[0038] Please see Figures 1-7The auxiliary device for preparing coating test samples of different specifications provided in this embodiment of the utility model mainly consists of a base plate 1, a hole plate 2, and a forming component 3. The base plate 1, as the basic support component of the entire device, can be made of metal and is fixed horizontally by a bracket or frame structure to ensure the overall stability of the device. The hole plate 2 is located directly above the base plate 1, and the two are detachably connected, facilitating subsequent disassembly, cleaning, and replacement of different hole plates 2 to meet the preparation needs of more sample specifications. The hole plate 2 has various customized holes 21 of different shapes and sizes spaced apart. A forming component 3 is detachably installed on the base plate 1 at the position corresponding to each customized hole 21. The top of the forming component 3 is a placement platform 31, the outer contour of each placement platform 31 matching the corresponding customized hole 21, and the top working surface of the placement platform 31 is accommodated within the customized hole 21. With the above settings, when preparing samples, the coating material is applied to the top working surface of the placement platform 31. Due to the limiting effect of the customized hole 21, the coating material will be formed according to the shape and size of the customized hole 21, thereby preparing coating test samples of different shapes and sizes.

[0039] Furthermore, in order to facilitate the demolding of the coating material, reduce the damage caused by adhesion during sample handling, and ensure the flatness of the coating surface to improve sample quality, the placement platform 31 of the hole plate 2 and the molding component 3 in this embodiment of the present invention is made of polytetrafluoroethylene material with a smooth surface and non-stick properties. The non-stick properties of polytetrafluoroethylene allow the coating to be easily removed after curing, avoiding the sample breakage problem that may occur during traditional manual sampling. Its smooth surface also ensures that the surface roughness of the coating after molding meets the test requirements.

[0040] In this embodiment of the utility model, the structure of the hole plate 2 is as follows: Figure 5 As shown, the customized holes 21 on the hole plate 2 can include different types such as circular holes, rectangular holes, square holes, and horseshoe-shaped holes, and their dimensions can be preset according to relevant test standards. For example, when testing the electromagnetic parameters of a circular ring, the outer diameter of the outer ring is set to 7mm and the inner diameter is 3mm; rectangular holes can be set to different sizes such as 22.86mm × 10.16mm (adapted to S-band waveguides), and can be customized according to actual needs. Correspondingly, the shape of each placement platform 31 is the same as the customized hole 21 (e.g., circular). Figure 6 As shown, the shapes are rectangular, square, and horseshoe-shaped, and the outer contour of the placement platform 31 is clearance-fitted with the inner wall of the customized hole 21. This design ensures that the placement platform 31 can move smoothly up and down within the customized hole 21, and also effectively constrains the coating material through the inner wall of the customized hole 21. This allows the coating material to be accurately shaped within the space formed by the customized hole 21 and the placement platform 31 during coating, resulting in well-formed and precisely sized circular, rectangular, square, and horseshoe-shaped coating test samples.

[0041] It should be noted that when preparing hollow, annular coated electromagnetic parameter test samples (e.g., for coaxial probe testing), a cylindrical boss 34 is vertically fixed at the center of the circular placement platform 31, as shown below. Figure 7 As shown, the diameter of the cylindrical boss 34 can be set according to actual testing requirements, and the cylindrical boss 34 is also made of non-stick polytetrafluoroethylene material. In this way, when the coating material is applied, the material will form around the cylindrical boss 34, and after curing, a ring-shaped sample can be obtained, without the need for subsequent manual processing, thus ensuring the concentricity and dimensional accuracy of the ring.

[0042] In this embodiment of the utility model, the base plate 1 and the hole plate 2 can be detachably connected in the following two ways: one is through a concave-convex structure to achieve a detachable connection, wherein a protruding structure 12 is provided on the edge 1 of the base plate, such as... Figure 4 As shown, the corresponding position on the hole plate 2 is provided with a groove structure 22 that matches the protrusion structure 12, such as... Figure 5 As shown, the cross-sectional design of this concave-convex structure should be a non-rotationally symmetric shape, such as a "greater than" shape or a trapezoid. This non-rotationally symmetric design effectively prevents relative rotation between the base plate 1 and the hole plate 2 under external force, ensuring their alignment and avoiding misalignment between the customized hole 21 and the placement platform 31 due to relative rotation, which would affect the sample forming accuracy. Another connection method is a detachable connection achieved through positioning pins and fasteners (not shown in the figure). The positioning pins define the relative position of the base plate 1 and the hole plate 2, and the fasteners can be bolts or snap-fit ​​structures. Bolt connections offer strong stability, while snap-fit ​​structures facilitate quick disassembly and installation. It should be noted that this invention only requires convenient detachable connection between the base plate 1 and the hole plate 2; the specific structure is not limited.

[0043] In the embodiments of this utility model, such as Figure 3 As shown, the molding component 3 is set as a lifting component, so that the placement platform 31 can be raised and lowered in the customized hole 21 along the axis of the customized hole 21. In this way, by adjusting the height difference of the placement platform 31 in the corresponding customized hole 21, the coating thickness of the coating material can be controlled, thereby preparing coating test samples with different thicknesses.

[0044] Specifically, the structure of molding component 3 is as follows: Figure 3 , 6As shown in Figure 7, it includes a screw 32 rotatably connected to the bottom of the placement platform 31. The screw 32 is threadedly connected to a threaded hole 11 on the base plate 1, with a thread precision of 6H / 6g to ensure the accuracy of lifting and adjusting. A slotted or cross-shaped groove is provided at the end of the screw 32 away from the placement platform 31, facilitating the rotation of the screw 32 with tools such as screwdrivers. To achieve smooth lifting and lowering of the placement platform 31 and prevent tilting during the process, a bearing 33 is fixedly installed at the bottom of the placement platform 31. The bearing 33 is a deep groove ball bearing, with the top of the screw 32 interference-fitted with the inner ring of the bearing 33, and the outer ring of the bearing 33 fixedly connected to the bottom of the placement platform 31. Thus, when the screw 32 is rotated, due to the threaded engagement between the screw 32 and the threaded hole 11, the screw 32 moves up and down, thereby driving the placement platform 31 to smoothly lift and lower along the axial direction of the custom hole 21 via the bearing 33, ensuring the levelness of the top working surface of the placement platform 31, thereby enabling adjustment of the coating thickness.

[0045] Furthermore, in this embodiment of the invention, a scale marking line is provided around the edge of each customized hole 21 on the hole plate 2. This scale marking line is used to indicate the thickness reference of the coating test sample. The operator can intuitively read the height difference between the top working surface of the placement platform 31 and the upper surface of the hole plate 2 according to the scale marking line, thereby accurately adjusting the height of the placement platform 31 to achieve the required sample thickness, realizing quantitative control of the coating thickness, and avoiding the estimation error of thickness in traditional manual coating. At the same time, since each molding component 3 is independently controlled, coating test samples of different shapes, sizes, and thicknesses can be prepared at one time.

[0046] The following example, using the preparation of samples of several common specifications, illustrates the usage process of this auxiliary device:

[0047] When preparing a circular coating sample, select a hole plate 2 with a custom circular hole 21 and connect and fix it to the base plate 1 using a concave-convex structure. First, use a screwdriver to turn the screw 32 below the corresponding circular placement platform 31, and adjust the placement platform 31 to the required height by referring to the scale markings on the edge of the custom circular hole 21 on the hole plate 2. For example, if a sample with a thickness of 1 mm is required, adjust the top working surface of the placement platform 31 to a height difference of 1 mm with the upper surface of the hole plate 2. Then, evenly apply the coating material to the circular placement platform 31. The material will be formed under the constraint of the custom circular hole 21. After curing, remove the hole plate 2 (a handle can be set on the outside of the hole plate for easy removal) to obtain a circular coating test sample of the required thickness.

[0048] When preparing a ring-shaped coating sample, a circular placement platform 31 with a cylindrical boss 34 fixed at the center is used. Following similar steps as described above, after adjusting the height of the placement platform 31, the coating material is evenly applied to the placement platform 31. The material will form a ring shape under the combined action of the circular custom hole 21 and the cylindrical boss 34. After curing, a ring-shaped coating electromagnetic parameter test sample can be obtained.

[0049] When preparing horseshoe-shaped coating samples, a hole plate 2 with horseshoe-shaped custom holes 21 is selected. After being connected and fixed, the height of the corresponding horseshoe-shaped placement platform 31 is adjusted, the material is coated and cured, and finally the horseshoe-shaped coating test sample is obtained.

[0050] In summary, the auxiliary device provided by this utility model, through its reasonable structural design, can efficiently and accurately prepare coating test samples of various shapes, sizes, and thicknesses. It effectively solves the problems of poor specification consistency, easy sample damage, low preparation efficiency, and insufficient thickness control accuracy in traditional preparation methods. Some shapes meet the stringent requirements of electromagnetic parameter testing, providing a strong guarantee for the accuracy and reliability of electromagnetic parameter test results. In addition, other shapes can be set to meet other testing needs of coatings.

[0051] The above description is merely a specific embodiment of this utility model, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this utility model.

[0052] It should be understood that this utility model is not limited to the content already described above, and various modifications and changes can be made without departing from its scope. The scope of this utility model is limited only by the appended claims.

Claims

1. An auxiliary device for preparing coating test samples of different specifications, characterized in that, Includes a base plate (1), and a hole plate (2) is detachably connected to the top of the base plate (1). The hole plate (2) is provided with customized holes (21) of different shapes and sizes at intervals. A molding component (3) is provided on the base plate (1) at each customized hole (21). The molding component (3) includes a placement platform (31) located on top of it, the outer contour of each placement platform (31) matching the corresponding custom hole (21), and the top working surface of the placement platform (31) being accommodated within the custom hole (21) for preparing coating test samples of different shapes and sizes.

2. The auxiliary device for preparing coating test samples of different specifications according to claim 1, characterized in that, The customized hole (21) includes a circular hole, a rectangular hole, a square hole and a horseshoe-shaped hole, and the size of the customized hole (21) is preset according to the test standard; Accordingly, the placement platform (31) is circular, rectangular, square and horseshoe-shaped, and the outer contour of the placement platform (31) is fitted with the inner wall of the custom hole (21) to form circular, rectangular, square and horseshoe-shaped coating test samples.

3. The auxiliary device for preparing coating test samples of different specifications according to claim 2, characterized in that, When it is necessary to prepare a hollow annular coating test sample, a cylindrical boss (34) is provided at the center of the circular placement platform (31).

4. The auxiliary device for preparing coating test samples of different specifications according to claim 1, characterized in that, The base plate (1) and the hole plate (2) are detachably connected by a concave-convex structure.

5. The auxiliary device for preparing coating test samples of different specifications according to claim 4, characterized in that, The cross-section of the convex-concave structure is designed to be non-rotationally symmetrical to prevent relative rotation between the base plate (1) and the hole plate (2).

6. The auxiliary device for preparing coating test samples of different specifications according to claim 1, characterized in that, The base plate (1) and the hole plate (2) are detachably connected by positioning pins and fasteners. The positioning pins are used to define the relative positions of the base plate (1) and the hole plate (2). The fasteners are bolts or snap-fit ​​structures.

7. The auxiliary device for preparing coating test samples of different specifications according to any one of claims 1 to 6, characterized in that, The molding component (3) is a lifting component. The placement platform (31) is axially raised and lowered within the customized hole (21). The height difference of the placement platform (31) within the corresponding customized hole (21) is adjusted to prepare coating test samples of different thicknesses.

8. The auxiliary device for preparing coating test samples of different specifications according to claim 7, characterized in that, The molding component (3) also includes a screw (32) rotatably connected to the bottom of the placement platform (31). The screw (32) is threadedly connected to a threaded hole (11) on the base plate (1), and a slot (straight or cross-shaped) is provided at the end of the screw (32) away from the placement platform (31).

9. The auxiliary device for preparing coating test samples of different specifications according to claim 8, characterized in that, The bottom of the placement platform (31) is fixedly provided with a bearing (33), and the top end of the screw (32) is rotatably connected to the bearing (33).

10. The auxiliary device for preparing coating test samples of different specifications according to claim 7, characterized in that, The hole plate (2) has scale markings around the edge of each custom hole (21), which are used to indicate the thickness reference of the coating test sample.

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