Adjustable clamp for glass scratch resistance test

Abstract

The utility model discloses an adjustable clamp for a glass scratch resistance test, and relates to the technical field of glass tests.The adjustable clamp comprises a base, a clamp plate and a test assembly, and the base is slidably provided with an objective table used for placing to-be-tested glass; the clamp plate comprises a clamp bottom plate, a fixed plate and a movable plate, the clamp bottom plate is fixedly arranged on the objective table, the fixed plate is fixed to the clamp bottom plate, the movable plate is arranged on the clamp bottom plate in a sliding mode, and the movable plate can adjust a clamping space defined by the movable plate and the fixed plate so as to clamp glass to be detected of different sizes; the testing assembly comprises a diamond attached to the surface of the to-be-tested glass and is used for scribing the to-be-tested glass moving along with the objective table. The mobile phone cover plate glass scratch test device is simple in structure, convenient to operate and generally suitable for scratch tests of existing mobile phone cover plate glass of various sizes and specifications.

Description

Technical Field

[0001] The present application relates to the technical field of glass testing, and in particular to an adjustable fixture for glass scratch resistance testing. Background Art

[0002] As smartphones become thinner and lighter, improving the drop resistance of phone cover glass has become a key technology. However, with increased drop resistance, internal stress in the glass can more easily succumb to surface stress, making it more susceptible to scratches and damage. This reduces the surface roughness and smoothness of the glass, seriously affecting the surface quality. Therefore, evaluating the scratch resistance of glass has become a key step in controlling the surface quality of glass.

[0003] Existing glass scratch resistance testing equipment, such as the Chinese utility model patent with authorization announcement number CN219302110U, discloses a fixture for constant-force testing of glass scratch resistance. The glass fixture unit has a complex structure, and the bolt fixing assembly within the fixture is unstable. This results in unstable force on the glass sample during the scratch test and uneven scratches, affecting test accuracy. In addition, the fixture assembly is not compatible with the clamping of glass of different sizes and specifications. Utility Model Content

[0004] The main purpose of this application is to provide an adjustable fixture for glass scratch resistance testing, aiming to solve the above technical problems.

[0005] The technical solutions adopted in this application are as follows:

[0006] An adjustable fixture for glass scratch resistance testing, comprising:

[0007] A base, on which a stage for placing the glass to be tested is slidably provided;

[0008] A fixture plate, comprising a fixture base plate, a fixed plate, and a movable plate, wherein the fixture base plate is fixedly disposed on the stage, the fixed plate is fixed to the fixture base plate, and the movable plate is slidably disposed on the fixture base plate, and the movable plate can adjust the clamping space enclosed by the fixed plate to clamp glasses of different sizes to be tested;

[0009] The testing component includes a diamond attached to the surface of the glass to be tested, and is used to scratch the glass to be tested that moves with the stage.

[0010] Optionally, the loading platform includes a bottom plate and a carrier plate, the bottom plate is slidably arranged on the surface of the base, and the carrier plate is fixedly mounted on the surface of the bottom plate by bolts.

[0011] Optionally, the surface of the base is provided with at least one set of parallel slide rail grooves, and the bottom surface of the bottom plate is provided with guide sliders that are fitted into the slide rail grooves.

[0012] Optionally, a plurality of elongated holes are provided between the surface of the clamp base plate and the fixed plate and the movable plate, the movable plate is placed above the elongated holes, and the movable plate is provided with adjusting bolts inserted into the elongated holes to adjust the tightness between the movable plate and the clamp base plate.

[0013] Optionally, the elongated hole is provided with a small hole section and a large hole section from top to bottom along the depth direction, and the adjusting bolt includes a bolt rod inserted into the small hole section and the large hole section and a nut threadedly connected to the bolt rod at the large hole section.

[0014] Optionally, the test assembly further includes a mounting bracket for mounting the diamond.

[0015] Optionally, the stage is magnetically connected to the fixture base.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] An adjustable fixture for glass scratch resistance testing proposed in an embodiment of the present application has a simple structure and is easy to use. By providing an adjustable fixture plate on a stage that moves with a base, it can meet the clamping requirements of glass samples of different sizes and specifications. The position of the clamped glass sample to be tested can be adjusted by movement, thereby evaluating the scratch resistance of the glass sample, providing a powerful reference for the surface quality assessment of mobile phone cover glass. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of an adjustable fixture for glass scratch resistance testing provided in an embodiment of the present application at one viewing angle;

[0019] Figure 2 Schematic diagram of the structure of the fixture plate at one perspective.

[0020] Description of the reference numerals in the accompanying drawings:

[0021] 1-base, 2-test assembly, 3-slide rail, 4-carrying platform, 401-bottom plate, 402-carrying plate, 5-fixture plate, 501-fixture bottom plate, 502-fixed plate, 503-movable plate, 504-long hole, 505-adjusting bolt, 506-guide rod, 6-fixing block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0023] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0024] In this application, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0025] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0026] Refer to the attached Figure 1 The embodiment of the present application provides an adjustable fixture for glass scratch resistance testing, including a base 1, a test component 2, a stage 4 and a fixture plate 5. The test component 2 and the stage 4 are both arranged on the base 1, the test component 2 is fixedly arranged on the base 1, and the stage 4 is slidably arranged along the base 1. During the sliding process of the stage 4, the glass piece to be tested clamped on the stage 4 is driven to pass through the test component 2 to complete the scratch test. The fixture plate 5 is an adjustable structure arranged on the stage 4, which can clamp glass to be tested of different sizes.

[0027] Specifically:

[0028] See also Figure 1 As shown, the base 1 is provided with at least one set of slide rails 3 along its surface. The slide rails 3 extend along the length of the base 1. The loading platform 4 is mounted and slides within the slide rails 3 to prevent the loading platform 4 from shifting during movement. The loading platform 4 comprises a base plate 401 and a carrier plate 402. The bottom surface of the base plate 401 is integrally formed with guide sliders that slide and fit within the slide rails 3. The carrier plate 402 is bolted to the surface of the base plate 401, allowing the loading platform 4 to slide along the slide rails 3.

[0029] like Figure 1 and Figure 2 As shown, the fixture plate 5 includes a fixture base plate 501401, a fixed plate 502 and a movable plate 503. Magnetic fixing blocks 6 are fixedly provided on both sides of the fixture base plate 501401. The carrier plate 402 is magnetically conductive. The fixture base plate 501401 is adsorbed and installed on the surface of the carrier plate 402 by the fixing blocks 6, and the installation position of the furniture board can be adjusted at will. The outer frame size of the fixture base plate 501401 is 195mm*125mm*16mm, which meets the installation requirements of most mobile phone cover glasses. The fixture base plate 501401 is provided with a plurality of elongated holes 504 in the same direction as the slide rail groove 3. The elongated holes 504 are provided with small hole sections and large hole sections from top to bottom along the depth direction. The diameter of the large hole section is 10.2mm, and the diameter of the small hole is 6.2mm. The fixed plate 502 and the movable plate 503 are located on both symmetrical sides of the clamp base plate 501401, wherein the fixed plate 502 is an L-shaped plate body, and the movable plate 503 is an elongated plate body. The fixed plate 502 is fixedly connected to the clamp base plate 501401 to form a retaining edge, and the movable plate 503 is placed on the elongated hole 504 in a direction perpendicular to the elongated hole 504. A threaded hole is provided in the middle of the movable plate 503 in a direction perpendicular to the base 1, and an adjusting bolt 505 is provided in the threaded hole. The adjusting bolt 505 includes a bolt rod and a nut. The bolt rod is inserted downward into the small hole section and the large hole section of the elongated hole 504 in the middle, and the nut is sleeved on the bolt rod and located in the large hole section. The movable plate 503 is provided with guide rods 506 inserted into the interior corresponding to the remaining elongated holes 504. As you can imagine, when you need to adjust the movable plate 503 to move along the elongated hole 504, you press the movable plate 503 with your hand and screw down the adjusting bolt 505, so that the nut separates from the clamp base plate 501401, and you can then move the movable plate 503. After the position of the movable plate 503 is adjusted, you screw up the adjusting bolt 505, so that the nut fits tightly against the bottom surface of the clamp base plate 501401, and then tighten the movable plate 503 with the bolt rod to complete the fixation.

[0030] The above Figure 1As shown, the test assembly 2 includes a mounting bracket and diamonds. One end of the mounting bracket is fixedly mounted on one side of the base 1, and the other end of the mounting bracket extends above the fixture bottom plate 501401. A plurality of diamonds are embedded on the surface of the mounting bracket facing the fixture bottom plate 501401. The fixing plate 502 is closer to one side of the mounting bracket, and the top surface of the fixing plate 502 is lower than the lowest height of the diamonds. At the same time, after the glass to be tested is mounted on the fixture plate 5, the top surface of the glass to be tested is higher than the top surface of the fixing plate 502, and the top surface of the glass to be tested maintains contact with the diamonds. In this way, when the stage 4 is pushed along Figure 1 As shown, when moving from right to left, the diamond can successfully complete the scratching of the glass surface to be tested. Of course, in this embodiment, the mounting bracket can also be designed as a height-adjustable structure as a conventional telescopic mounting bracket structure, which will not be described in detail here.

[0031] In summary, the embodiment of the present application provides an adjustable clamp for glass scratch resistance testing. When in use, after the clamp plate 5 is magnetically mounted on the stage 4, the glass to be tested is placed on the clamp bottom plate 501401, and the L-shaped fixed plate 502 is used to position and limit the glass to be tested. Then, the movable plate 503 is loosened by screwing the adjusting bolt 505 downward, and then the movable plate 503 is moved to press the end of the glass to be tested away from the fixed plate 502, and the adjusting bolt 505 is screwed upward to tighten and fix the movable plate 503, thereby completing the clamping of the glass to be tested. Finally, the stage 4 is moved closer to the test assembly 2, and the glass to be tested is scratched with a diamond, thereby completing the scratch test of the glass to be tested. It can be seen that the adjustable clamp for glass scratch resistance testing provided by the embodiment of the present application is simple to operate and is generally applicable to existing mobile phone cover glasses of various sizes.

[0032] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. An adjustable fixture for glass scratch resistance testing, characterized in that: include: A base, on which a stage for placing the glass to be tested is slidably provided; A fixture plate, comprising a fixture base plate, a fixed plate, and a movable plate, wherein the fixture base plate is fixedly disposed on the stage, the fixed plate is fixed to the fixture base plate, and the movable plate is slidably disposed on the fixture base plate, and the movable plate can adjust the clamping space enclosed by the fixed plate to clamp glasses of different sizes to be tested; The testing component includes a diamond attached to the surface of the glass to be tested, and is used to scratch the glass to be tested that moves with the stage.

2. The adjustable fixture for glass scratch resistance testing according to claim 1, characterized in that: The loading platform includes a bottom plate and a carrier plate. The bottom plate is slidably arranged on the surface of the base, and the carrier plate is fixedly installed on the surface of the bottom plate by bolts.

3. The adjustable fixture for glass scratch resistance testing according to claim 2, characterized in that: The surface of the base is provided with at least one set of parallel slide rail grooves, and the bottom surface of the bottom plate is provided with guide sliding blocks which are matched and installed in the slide rail grooves.

4. The adjustable fixture for glass scratch resistance testing according to claim 1, characterized in that: A plurality of elongated holes are provided between the surface of the clamp base plate and the fixed plate and the movable plate. The movable plate is placed above the elongated holes, and the movable plate is provided with adjusting bolts inserted into the elongated holes to adjust the tightness between the movable plate and the clamp base plate.

5. The adjustable fixture for glass scratch resistance testing according to claim 4, characterized in that: The long hole is provided with a small hole section and a large hole section from top to bottom along the depth direction, and the adjusting bolt includes a bolt rod inserted into the small hole section and the large hole section and a nut located in the large hole section and threadedly connected to the bolt rod.

6. The adjustable fixture for glass scratch resistance testing according to claim 1, characterized in that: The test assembly further includes a mounting bracket for mounting the diamond.

7. The adjustable fixture for glass scratch resistance testing according to claim 1, characterized in that: The loading platform is magnetically connected to the fixture base plate.

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