Cover glass measuring jig, jig assembly, and method of manufacturing and use thereof

Abstract

The present disclosure provides a cover plate glass measuring jig, a jig assembly, a manufacturing method and application thereof, and relates to the technical field of glass measurement. The cover plate glass measuring jig comprises a cover plate glass and a cushion block, and further comprises a gypsum layer, wherein the cushion block, the gypsum layer and the cover plate glass are sequentially stacked from bottom to top. The gypsum is coated on the upper surface of the measuring jig, and the hardened gypsum will not deform after the glass is placed thereon, so as to ensure the accuracy of measurement and not affect the measurement result. The surface of the gypsum product is smooth and delicate, so that the surface will not scratch the surface of the cover plate glass. The gypsum has a large porosity, so that the mass of the gypsum is lighter under the same thickness, and more labor can be saved during transportation.

Description

Technical Field

[0001] This disclosure relates to the field of cover glass measurement technology, and in particular to a cover glass measuring fixture, fixture assembly, manufacturing method and application thereof. Background Technology

[0002] Three-dimensional and two-dimensional measurement is an indispensable part of the cover glass manufacturing process. It directly affects the quality of the cover glass and indirectly improves customer satisfaction with the protective products. A measuring fixture is used during measurement. Currently, two measuring fixtures are commonly used on the market, both of which have unavoidable drawbacks.

[0003] The first method involves milling the required structure directly from an aluminum block. However, because the surface of the aluminum block easily scratches the cover glass, Teflon or a protective film is applied to the contact surface of the cover glass on a fixture during use. But when measuring the contour, Teflon or protective film can cause wrinkles at the through-holes, leading to inaccurate measurements. The second method involves attaching an acrylic block to the aluminum block using AB glue. This method solves the problem of the first method, but the acrylic block is prone to deformation after a period of use, increasing costs and affecting the schedule. Summary of the Invention

[0004] One of the technical problems that this disclosure aims to solve is the technical problem that existing measuring fixtures for cover glass cause the surface of the pad to scratch the surface of the cover glass during use.

[0005] To solve the technical problem, this application provides a measuring fixture for cover glass, including cover glass and pad. The measuring fixture also includes a plaster layer, and the pad, plaster layer and cover glass are stacked in sequence from bottom to top.

[0006] In some embodiments, the upper surface of the gypsum layer is smooth and flat, and the thickness of the gypsum layer is uniform.

[0007] And / or, the plaster layer is fixed to the upper surface of the pad.

[0008] In some embodiments, the measuring fixture is divided into a probe motion trajectory area, a positioning area, and a placement area according to its operational function; wherein, the probe motion trajectory area is the outermost ring of the top surface of the measuring fixture and is elongated; the positioning area is immediately adjacent to the probe motion trajectory area and is located at the highest point of the outer side of the measuring fixture; the placement area is located in the middle of the measuring fixture.

[0009] In some embodiments, the corner apex of the positioning area is the positioning point of the probe;

[0010] And / or, the shape and structure of the placement area are similar to the shape and structure of the cover glass;

[0011] And / or, a wall cavity groove is provided in the middle of the placement area, the positioning area and the probe movement trajectory area, and a wall cavity hole is provided at the corner of the wall cavity groove.

[0012] To address the technical problem, this application also provides a method for manufacturing a measuring fixture for cover glass, comprising the following steps:

[0013] 1) Place the gypsum powder in a container and add water to make a solution with uniform powder particle distribution;

[0014] 2) Pour the plaster liquid to a uniform thickness onto the upper surface of the pad;

[0015] 3) After the gypsum liquid cools and solidifies, process the gypsum layer to a uniform thickness.

[0016] In some embodiments, the step prior to step 2) is: 1A) shaping the pad block;

[0017] Step 3) is followed by step 4) placing the pad with the plaster layer fixed into the measuring fixture and placing the cover glass on the surface of the plaster layer.

[0018] After step 4), the following step is also included: 5) If scratches appear on the gypsum layer after use, the gypsum layer is processed again to remove the surface scratches.

[0019] In some embodiments, before step 2), the method further includes step 2A) surrounding the pad with the surrounding material without gaps between the surrounding material and the pad, and with the plaster liquid solidifying to a thickness of 2mm-5mm.

[0020] To address the technical problem, this application also provides a fixture assembly for protecting the cover glass during measurement, comprising: a plaster layer and a pad, wherein the pad and the plaster layer are stacked sequentially from bottom to top.

[0021] To solve the technical problem, this application also provides a method for manufacturing a fixture assembly for protecting the cover glass during measurement, including the following steps: 1) Take gypsum powder and place it in a container, add water to make a solution with uniform powder particle distribution;

[0022] 2) Pour the plaster liquid onto the upper surface of the pad;

[0023] 3) After the gypsum liquid cools and solidifies, process the gypsum layer to a uniform thickness.

[0024] To address the technical issues, this application also provides the application of the measuring fixture described above in two-dimensional and three-dimensional testing of cover glass.

[0025] The technical effects achieved by this invention through the technical solution are as follows:

[0026] 1. The measuring fixture for the cover glass provided in this disclosure has plaster applied to its upper surface, which reduces the possibility of scratches and does not affect the measurement results.

[0027] 2. The upper surface of the gypsum layer of the present invention is smooth and flat, and the thickness of the gypsum layer is consistent, so there will be no deformation, which can ensure the accuracy of the measurement.

[0028] 3. In this invention, the gypsum layer is fixed to the upper surface of the pad, thus fixing the glass and facilitating measurement.

[0029] 4. This measuring fixture is divided into three areas according to its function: probe movement trajectory area, positioning area, and placement area, which can complete the measurement of the fixture.

[0030] 5. The corner apex of the positioning area of ​​this invention is the positioning point of the probe, which can effectively provide positioning for the origin of the measurement, which is convenient and quick.

[0031] 6. The shape and structure of the placement area of ​​this invention are similar to those of the cover glass, which facilitates the placement of the cover glass.

[0032] 7. The present invention provides a wall groove in the middle of the placement area, the positioning area and the probe movement trajectory area, and a wall hole at the corner of the wall groove. The wall groove and the hole can prevent the corners of the cover glass from being bumped when the cover glass is placed in the placement area.

[0033] 8. The present invention surrounds the pad on all four sides, and ensures that there are no gaps between the surrounding material and the pad, so that the plaster liquid solidifies and is entirely on the upper surface of the measuring fixture pad. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a three-dimensional rendering of the measuring fixture for the cover glass disclosed in this embodiment;

[0036] Figure 2 This is a top view of the measuring fixture for the cover glass disclosed in this embodiment;

[0037] Figure 3 This is a cross-sectional view (AA) of the measuring fixture for the cover glass disclosed in this embodiment;

[0038] Figure 4 This is a partial enlarged view (B) of the measuring fixture for the cover glass disclosed in this embodiment;

[0039] Figure 5 This is a three-dimensional rendering of the measuring fixture without the cover glass disclosed in this embodiment;

[0040] Figure 6 This is a top view of the measuring fixture without the cover glass disclosed in this embodiment.

[0041] Explanation of reference numerals in the attached figures:

[0042] 1. Probe movement trajectory area; 2. Positioning area; 21. Positioning point; 3. Placement area; 31. Light transmission hole; 4. Wall groove; 41. Wall hole; 5. Pad; 6. Plaster layer; 7. Cover glass. Detailed Implementation

[0043] The embodiments of this disclosure will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of this disclosure by way of example, but should not be used to limit the scope of this disclosure. This disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0044] These embodiments are provided in this disclosure to make the disclosure thorough and complete, and to fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, the composition of materials, numerical expressions and values ​​set forth in these embodiments should be interpreted as exemplary only and not as limiting.

[0045] It should be noted that, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this disclosure 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, and therefore should not be construed as a limitation of this disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0046] Furthermore, the terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after the word, and do not exclude the possibility of encompassing other elements as well.

[0047] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this disclosure depending on the specific circumstances. When a particular device is described as being located between a first device and a second device, an intermediary device may or may not be present between the particular device and the first or second device.

[0048] All terms used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0049] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0050] Example 1

[0051] like Figures 1 to 6As shown, the measuring fixture for the cover glass 7 includes the cover glass 7, a plaster layer 6, and a pad 5. The pad 5 can be made of aluminum. The aluminum block, plaster layer 6, and cover glass 7 are stacked sequentially from bottom to top. The plaster layer 6 is fixed to the upper surface of the aluminum block. To ensure measurement accuracy, the upper surface of the plaster layer 6 is ground and polished to a smooth and flat surface, and the thickness of the plaster layer 6 is uniform. The upper surface of the plaster layer 6 is parallel to the upper surface of the aluminum block, perfectly fitting the cover glass 7. The plaster layer 6 has a loose texture and a smooth surface, so it will not scratch the glass after placement, and it will not affect the accuracy of the measurement due to external factors, i.e., it will not produce wrinkles at the through-holes, thus preventing inaccurate measurement results. The measuring fixture is divided into three areas based on its function: a probe movement trajectory area 1, a positioning area 2, and a placement area 3. The probe movement trajectory area 1 is the outermost ring on the top surface of the measuring fixture, and is elongated. The positioning area 2 is immediately adjacent to the probe movement trajectory area 1, located at the highest point of the outer edge of the measuring fixture. The placement area 3 is located in the middle of the measuring fixture. The probe movement trajectory area 1 is the outermost ring on the upper surface of the fixture, and is elongated. Due to the accuracy requirements of cover glass measurement, the diameter of the selected probe is usually no more than 5mm. To ensure a certain gap between the probe and the probe movement trajectory area 1 on the fixture, the depth of this area needs to be greater than 5mm to avoid insufficient depth, which would prevent the center of the coordinate axis from overlapping with the center of the probe's sphere during measurement, leading to inaccurate measurement data. The definition of the probe movement trajectory area applies to the initial probe movement to determine the measurement baseline (i.e., the coordinate axis). After the baseline is determined, the actual probe will determine the size of the glass being measured and the contour of each position. The positioning area 2 is higher than the other functional areas and is also located at the highest point of the fixture. The positioning area 2 is immediately adjacent to the probe movement trajectory area 1. The corner vertex of positioning area 2 is the positioning point 21 of the probe, and the aforementioned measuring fixture is equipped with positioning point 21. The presence of positioning point 21 can effectively provide positioning for the origin of the measurement. Positioning point 21 can position the probe, facilitating the measurement of the distance to the light-transmitting hole 31. Then, the dimensions and contours of the glass can be calculated. This measurement method is existing technology and therefore will not be described in detail. The shape and structure of placement area 3 are similar to those of cover glass 7. The corner vertex of positioning area 2 is the positioning point 21 of the probe. Placement area 3 occupies the largest area on the upper surface of the fixture and is used to place cover glass 7. The shape and structure of placement area 3 are similar to those of cover glass 7.

[0052] In some embodiments, a wall groove 4 is provided in the middle of the placement area 3, the positioning area 2, and the probe movement trajectory area 1, and a wall hole 41 is provided at the corner of the wall groove 4. The measuring fixture described above is provided with a wall groove 4 and a wall hole 41, which can protect the edges and corners of the glass and prevent it from colliding with the lines and corners of the positioning point 21, thereby preventing damage. The wall groove 4 and the wall hole are to prevent the edges and corners of the cover glass 7 from being bumped when it is placed in the placement area 3, and also facilitate the processing of the placement area 3 of the grinding head processing fixture. The measuring fixture described above can be fixed by magnetic attraction, bolts, or other methods.

[0053] Example 2

[0054] The method for manufacturing the measuring fixture for the cover glass 7 includes the following steps: 1A) Processing the pad 5 into a suitable structural size; 1) Taking an appropriate amount of gypsum powder and placing it in a container, adding water to prepare a solution with uniform particle distribution, wherein the mass ratio of water to gypsum powder is 0.6 to 0.65:1; 2A) Enclosing the pad 5 on all four sides, ensuring that there are no gaps between the enclosing material and the pad 5; 2) Pouring gypsum liquid onto the upper surface of the pad 5; 3) After the gypsum liquid cools and solidifies, processing the gypsum layer 6 to a uniform thickness and a smooth and flat surface; 4) Placing the pad 5 with the gypsum layer 6 fixed inside the measuring fixture, and placing the cover glass 7 on the surface of the gypsum layer 6; 5) If scratches appear on the gypsum layer 6 after use, performing secondary processing on the gypsum layer 6 to remove the surface scratches.

[0055] In some embodiments, to prevent the plaster liquid from spreading everywhere after being poured onto the aluminum block due to its fluidity, the fixture can be surrounded by a material with no gaps between it and the fixture. This ensures that the plaster liquid, after solidification, remains entirely on the upper surface of the aluminum block and has a certain thickness. The thickness can be set to 2–5 mm. Coating the upper surface of the fixture with plaster increases the softness of the contact surface, reduces scratches, and does not affect the measurement results.

[0056] In some embodiments, if the surface of the plaster layer 6 is accidentally scratched, it can be reprocessed into a smooth and flat surface by grinding and polishing, removing the surface scratches, reusing it, reducing costs, and saving a lot of processing time and processing costs.

[0057] Example 3

[0058] The fixture assembly protecting the cover glass 7 during measurement includes a plaster layer 6 and a pad 5, which are stacked sequentially from bottom to top. Existing methods place the cover glass directly on the pad, but the surface of the pad can easily scratch the cover glass. Therefore, Teflon or a protective film is applied to the contact surface where the cover glass is placed. However, Teflon and protective films can cause wrinkles at the through-holes when measuring contours, leading to inaccurate measurement results. This solution coats the upper surface of the fixture with plaster. The plaster layer is porous and has a smooth surface, increasing the softness of the contact surface. Therefore, it will not scratch the glass after placement, nor will it cause wrinkles at the through-holes, thus preventing inaccurate measurement results.

[0059] Example 4

[0060] The method for manufacturing the fixture assembly for protecting the cover glass 7 during measurement includes the following steps: 1) Take an appropriate amount of gypsum powder and place it in a container, add water to make a solution with uniform powder particle distribution; 2) Pour the gypsum liquid onto the upper surface of the pad block 5; 3) After the gypsum liquid cools and solidifies, process the gypsum layer 6 to a uniform thickness.

[0061] The embodiments of this disclosure have now been described in detail. To avoid obscuring the concept of this disclosure, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0062] While specific embodiments of this disclosure have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this disclosure. In particular, as long as there is no structural conflict, the technical features mentioned in the various embodiments can be combined in any manner.

Claims

1. A method for manufacturing a measuring fixture for cover glass, characterized in that, Includes the following steps: 1) Place the gypsum powder in a container and add water to make a solution with uniform powder particle distribution; 2) Pour the plaster liquid onto the upper surface of the pad (5); 3) After the gypsum liquid cools and solidifies, process the gypsum layer (6) to a uniform thickness; The measuring fixture for the cover glass includes the cover glass (7) and the pad (5). The measuring fixture also includes a plaster layer (6). The pad (5), the plaster layer (6) and the cover glass (7) are stacked from bottom to top. Before step 2), the process includes step 1A) shaping the pad (5); After step 3), the following step is also included: 4) placing the pad (5) with the plaster layer (6) fixed inside the measuring fixture and placing the cover glass (7) on the surface of the plaster layer (6); After step 4), the following step is also included: 5) If scratches appear on the gypsum layer (6) after use, the gypsum layer (6) is processed again to remove the surface scratches.

2. The manufacturing method according to claim 1, characterized in that, Before step 2), there is also step 2A) surrounding the pad (5) with no gap between the surrounding material and the pad (5) and the plaster liquid solidifies to a thickness of 2mm-5mm.

3. The manufacturing method according to claim 1, characterized in that, The upper surface of the gypsum layer (6) is smooth and flat, and the thickness of the gypsum layer (6) is uniform. And / or, the plaster layer (6) is fixed to the upper surface of the pad (5).

4. The manufacturing method according to claim 1, characterized in that, The measuring fixture is divided into the following areas according to its function: probe motion trajectory area (1), positioning area (2), and placement area (3); wherein, the probe motion trajectory area (1) is the outermost ring on the top surface of the measuring fixture and is long and narrow; the positioning area (2) is adjacent to the probe motion trajectory area (1) and is located at the highest point of the outer side of the measuring fixture; the placement area (3) is located in the middle of the measuring fixture.

5. The manufacturing method according to claim 4, characterized in that, The corner vertex of the positioning area (2) is the positioning point (21) of the probe. And / or, the shape and structure of the placement area (3) are similar to the shape and structure of the cover glass (7); And / or, a wall groove (4) is provided in the middle of the placement area (3), the positioning area (2) and the probe movement trajectory area (1), and a wall hole (41) is provided at the corner of the wall groove (4).

6. The application of the measuring fixture manufactured by the method described in any one of claims 1 to 5 in two-dimensional and three-dimensional testing of cover glass.

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