Device for drilling glass substrate and drilling method

Abstract

The invention provides a device for glass substrate drilling and a drilling method, and relates to the technical field of glass substrates. The drilling method of the glass substrate comprises the following steps: positioning the glass substrate, and fixing the glass substrate in a container; fixing the container and enabling the glass substrate to be in a horizontal state; drilling the glass substrate through a drilling machine; wherein in the drilling process, the glass substrate is always located below the liquid level of the liquid in the container. The drilling method has the advantages that the drilling method is suitable for various glass substrates with different thicknesses and is high in universality; in the drilling process, the glass substrate does not need to be turned over, the drilling efficiency is high, and the machining precision is easy to control.

Description

Technical Field

[0001] The present application relates to the technical field of glass substrates, and in particular to a device and a method for drilling holes in a glass substrate. Background Art

[0002] Glass substrates are widely used in circuit boards, electronic devices, optical instruments, and other fields. Due to requirements such as electrical connections, fluid transmission, optical pathways, mechanical fixation, sensor interfaces, or other specific manufacturing processes, glass substrates are often required to be opened.

[0003] Currently, laser drilling is a common method for creating holes in glass substrates. Laser drilling involves first laser processing one side of the glass substrate, then flipping it over and laser processing the other side to create the desired through-hole. However, this method has the following drawbacks: It is less suitable for thicker glass substrates; the substrate must be flipped during the drilling process, making it difficult to control machining accuracy. Summary of the Invention

[0004] The purpose of this application is to overcome the defects of the prior art and provide a device and a drilling method for drilling holes in a glass substrate to solve the problems in the prior art.

[0005] To solve the above problems, a first aspect of an embodiment of the present application provides a method for drilling a hole in a glass substrate, comprising:

[0006] Positioning a glass substrate and fixing the glass substrate in a container;

[0007] Fixing the container so that the glass substrate is in a horizontal state;

[0008] The glass substrate is drilled by a drilling machine; wherein, during the drilling process, the glass substrate is always below the liquid level in the container.

[0009] In one possible embodiment, before positioning the glass substrate, a protective member is provided on the glass substrate; the protective member is used to protect the glass substrate and improve drilling performance of the glass substrate; during the drilling process, the protective member and the glass substrate remain relatively fixed, and the protective member is always below the liquid level in the container;

[0010] The glass substrate comprises a first surface and a second surface, wherein the first surface and the second surface are respectively arranged on two sides in a thickness direction of the glass substrate;

[0011] The protective member is attached to the first surface and / or the second surface.

[0012] In a possible implementation, a protective coating is provided on the first surface and / or the second surface; wherein the protective coating is used to protect the glass substrate and improve drilling processing performance of the glass substrate.

[0013] In a possible implementation, during the drilling process, the spindle pressure foot of the drilling machine is always immersed in the liquid in the container.

[0014] In one possible embodiment, during the drilling process:

[0015] Discharging the liquid in the container in real time to remove debris generated during the drilling process;

[0016] Clean liquid is injected into the container in real time to keep the liquid level in the container at a preset height.

[0017] A second aspect of an embodiment of the present application provides an apparatus for drilling a hole in a glass substrate, which is applied to the above-mentioned method for drilling a hole in a glass substrate, and comprises a container and a mounting assembly; wherein a receiving cavity in the container is used to store liquid and a glass substrate, and the mounting assembly is used to mount the glass substrate and fix the glass substrate in the receiving cavity;

[0018] The top of the container is an opening, which is communicated with the accommodating cavity; wherein the opening is used for a drill bit of a drilling rig to extend into the container to drill a hole in the glass substrate.

[0019] In a possible implementation, the mounting assembly includes a first placement portion and a second placement portion; along the first direction, the first placement portion and the second placement portion are arranged opposite to each other;

[0020] The glass substrate is clamped between the first placement portion and the second placement portion;

[0021] The first placement portion is fixedly connected to the container; the second placement portion is movable along the first direction to approach or move away from the first placement portion;

[0022] A positioning portion is provided on the first placement portion, and the positioning portion is used to position the glass substrate.

[0023] In one possible embodiment, the mounting assembly further includes a first connecting portion and a second connecting portion; the first connecting portion and the second connecting portion are arranged opposite to each other along the second direction; wherein the first direction and the second direction are perpendicular to each other and are both parallel to the bottom surface of the accommodating cavity;

[0024] The glass substrate is clamped between the first connecting portion and the second connecting portion;

[0025] The first connection portion is fixedly connected to the container; the second connection portion is movable along the second direction to move closer to or away from the first connection portion.

[0026] In a possible embodiment, the container is provided with a liquid inlet portion and a liquid discharge portion, the liquid inlet portion is used to allow liquid to flow into the container, and the liquid discharge portion is used to discharge the liquid in the container.

[0027] In a possible implementation manner, the bottom surface of the container and the bottom surface of the accommodating cavity are both planes and parallel to each other.

[0028] The beneficial effects of this application include:

[0029] The glass substrate drilling method provided in this application utilizes mechanical drilling to drill holes in the glass substrate. During drilling, the glass substrate remains below the liquid surface. The buffering tension of the liquid reduces the stress of the high-speed rotating drill bit during drilling, thereby ensuring smooth drilling and preventing cracking of the glass substrate. This drilling method has the following advantages: it is applicable to glass substrates of various thicknesses and is highly versatile. It eliminates the need to flip the glass substrate during drilling, resulting in high drilling efficiency and easier-to-control processing precision. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 A cross-sectional view of a glass substrate processed by a laser hole forming method is shown;

[0032] Figure 2 A flow chart of a method for drilling a glass substrate is shown;

[0033] Figure 3 shows a cross-sectional view of a glass substrate processed by the drilling method proposed in this embodiment;

[0034] Figure 4 A side view of a glass substrate with protective members attached to both the first and second surfaces is shown;

[0035] Figure 5A side view of a glass substrate with a protective member attached to the second surface is shown;

[0036] Figure 6 A schematic diagram of a container is shown;

[0037] Figure 7 Shown Figure 6 A top view of the middle container;

[0038] Figure 8 A schematic diagram of an installation assembly is shown;

[0039] Figure 9 shows a schematic diagram of a first placement portion;

[0040] Figure 10 shows a schematic diagram of a second placement portion;

[0041] Figure 11 A schematic diagram of a mounting rail is shown.

[0042] Description of main component symbols:

[0043] 100-glass substrate; 101-through hole; 110-first surface; 120-second surface; 200-protective member; 300-container; 310-accommodating chamber; 320-liquid inlet; 330-liquid discharge; 340-positioning hole; 400-mounting assembly; 411-first placement portion; 412-second placement portion; 413-card slot; 421-first connecting portion; 422-second connecting portion; 430-mounting rail; 431-plug hole. DETAILED DESCRIPTION

[0044] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0045] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0046] During laser drilling, the temperature generated by the laser is too high, which can easily lead to the generation of micro cracks. Micro cracks will reduce the mechanical strength and reliability of the glass substrate 100, and there will be a certain heat-affected zone problem. In addition, if Figure 1 As shown, when a laser drilling method is used to form holes in a glass substrate 100, the holes obtained by laser processing on each side are all tapered holes. As a result, the through-holes 101 formed ultimately have uneven inner walls, which can affect signal transmission. The drilling method proposed in this application can effectively solve the above problem.

[0047] Example

[0048] See Figure 2 In this embodiment, a method for drilling a hole in a glass substrate is proposed, comprising:

[0049] S1, positioning the glass substrate 100 and fixing the glass substrate 100 in the container 300;

[0050] S2, fixing the container 300 and making the glass substrate 100 in a horizontal state;

[0051] S3, drilling the glass substrate 100 by a drilling machine. During the drilling process, the glass substrate 100 is always below the liquid level in the container 300.

[0052] Positioning and mounting the glass substrate 100 allows the drill bit to accurately locate the hole to be drilled before drilling, ensuring machining accuracy and precision. By securing the container 300, the position of the container 300 and the glass substrate 100 can be prevented from shifting due to vibrations during drilling, thereby ensuring the accuracy of the drilled hole position and the precision of the drilled hole.

[0053] By fixing the container 300, the glass substrate 100 is in a horizontal state. When drilling, the drill bit is perpendicular to the glass substrate 100, thereby ensuring the accuracy of the drilling and the roundness of the hole cross section. Figure 3 By using the drilling method proposed in this embodiment, a through hole 101 with a flat and smooth inner wall can be obtained.

[0054] During drilling, the glass substrate 100 remains below the liquid surface. The buffering tension of the liquid reduces the stress of the high-speed rotating drill bit during drilling, thereby ensuring smooth drilling and preventing breakage and microcracks in the glass substrate 100. The drilling process is carried out in liquid, which acts as a cooling agent, thereby protecting the glass substrate 100 and the drill bit, further preventing breakage and microcracks in the glass substrate 100. Liquids are not easily compressed or expanded, thus providing greater stability during the drilling process, ensuring the stability of the machining process and resulting in more stable and accurate shapes and sizes of the drilled holes.

[0055] In this embodiment, before positioning the glass substrate 100, a protective member 200 is placed on the glass substrate 100. The protective member 200 protects the glass substrate 100 and improves the drilling performance of the glass substrate 100, thereby reducing the risk of breakage and microcracks in the glass substrate 100 during the drilling process. The protective member 200 can be made of a polymer material, such as silicone, rubber, etc.

[0056] During the drilling process, the protective member 200 and the glass substrate 100 remain relatively fixed, and the protective member 200 is always below the liquid level in the container 300 .

[0057] like Figure 4 As shown, the glass substrate 100 includes a first surface 110 and a second surface 120, which are respectively disposed on both sides of the thickness direction of the glass substrate 100. A protective member 200 is attached to the first surface 110 and / or the second surface 120.

[0058] like Figure 4 As shown, in one embodiment, a protective member 200 is attached to both the first surface 110 and the second surface 120 of the glass substrate 100 .

[0059] like Figure 5 As shown, in one embodiment, a protective member 200 is attached to the second surface 120 of the glass substrate 100. When the glass substrate 100 is installed in the container 300, the first surface 110 is located above the second surface 120. At this time, the protective member 200 is used to cushion the second surface 120 to provide support and prevent the glass substrate 100 from directly contacting the container 300.

[0060] The protective member 200 can be a plate-like structure with uniform thickness. The size of the protective member 200 corresponds to the size of the glass substrate 100. Specifically, the protective member 200 can completely cover the corresponding surface of the glass substrate 100. When two protective members 200 are provided, the thickness of the two protective members 200 can be the same or different.

[0061] Furthermore, a protective coating is provided on the first surface 110 and / or the second surface 120. The protective coating is used to protect the glass substrate 100 and improve the drilling performance of the glass substrate 100, thereby reducing the risk of breakage and microcracks in the glass substrate 100 during the drilling process. Furthermore, when a protective coating is provided between the protective member 200 and the glass substrate 100, the protective coating can fill the gap between the protective member 200 and the glass substrate 100, thereby ensuring a tighter bond between the protective member 200 and the glass substrate 100 and improving the protective effect.

[0062] The protective coating can be a nano coating or the like.

[0063] During the drilling process, the spindle pressure foot of the drilling rig is always immersed in the liquid in the container 300, so that the cavity in the spindle pressure foot is filled with liquid, thereby forming a closed working chamber filled with water that is balanced with the external water pressure, thereby ensuring that the drill bit can perform drilling work in a stable and liquid-filled environment.

[0064] In this embodiment, during the drilling process:

[0065] Discharge the liquid in the container 300 in real time to remove debris generated during the drilling process;

[0066] Clean liquid is injected into the container 300 in real time so that the liquid level in the container 300 is maintained at a preset height.

[0067] In addition, by discharging and injecting liquid in real time, the temperature of the liquid in the container 300 can be reduced to ensure the cooling effect. The liquid can be purified water or the like.

[0068] The discharge and injection of the liquid can be driven by a water pump. The discharged liquid can be re-injected into the container 300 after filtering, thereby realizing the recycling of the liquid.

[0069] In this embodiment, a device for drilling a hole in a glass substrate is also proposed, which is applied to the above-mentioned method for drilling a hole in a glass substrate.

[0070] The apparatus for drilling a hole in a glass substrate includes a container 300 and a mounting assembly 400 .

[0071] like Figure 6 and Figure 7 As shown, a receiving cavity 310 is provided inside the container 300. The receiving cavity 310 is used to store liquid and the glass substrate 100.

[0072] The outline shape of the container 300 and the receiving cavity 310 can be set as needed, and is not limited to a rectangular parallelepiped, a cylindrical shape, etc. Any other regular or irregular shape is acceptable. The size of the receiving cavity 310 is determined according to the size of the glass substrate 100 to be drilled.

[0073] The top of the container 300 is an opening, which is communicated with the accommodating cavity 310. The opening is used for a drill bit of a drilling machine to extend into the container 300 to drill a hole in the glass substrate 100.

[0074] The mounting assembly 400 is used to mount the glass substrate 100 and fix the glass substrate 100 in the receiving cavity 310 .

[0075] like Figure 8 As shown, the mounting assembly 400 includes a first seating portion 411 and a second seating portion 412 . The first seating portion 411 and the second seating portion 412 are disposed opposite to each other along a first direction, wherein the glass substrate 100 is clamped between the first seating portion 411 and the second seating portion 412 .

[0076] like Figure 9 and Figure 10 As shown, both the first placement portion 411 and the second placement portion 412 are provided with a latching groove 413 , thereby ensuring the stability of the connection with the glass substrate 100 .

[0077] Because the protective member 200 is attached to the glass substrate 100, the protective member 200 is also clamped between the first seating portion 411 and the second seating portion 412 when the glass substrate 100 is installed, thereby achieving relative fixation between the glass substrate 100 and the protective member 200. The contact areas of the first seating portion 411 and the second seating portion 412 with the glass substrate 100 are elastic, thereby avoiding rigid contact and thus protecting the glass substrate 100.

[0078] The first placement portion 411 is fixedly connected to the container 300 , wherein the first placement portion 411 and the container 300 can be fixed by screw connection, welding, integral molding, etc. and / or can be detachably connected by screw connection, plugging, etc.

[0079] The second placement portion 412 can move along the first direction to move closer to or farther from the first placement portion 411. In this way, the position of the second placement portion 412 can be adjusted according to the size of the glass substrate 100 to adjust the distance between the first placement portion 411 and the second placement portion 412 to adapt to the size of the glass substrate 100. Figure 8 As shown, arrow a is parallel to the first direction. The second placement portion 412 and the container 300 can be detachably connected by screw connection, plug-in connection, etc. and / or can be fixed by screw connection, welding, integral molding, etc.

[0080] like Figure 8 As shown, a plurality of mutually parallel mounting rails 430 may be provided between the first mounting portion 411 and the second mounting portion 412, and the mounting rails 430 are fixed in the container 300. All mounting rails 430 are arranged in sequence along the first direction at equal intervals, wherein the interval between adjacent mounting rails 430 can be set as needed, for example, 30 mm, 50 mm, etc.

[0081] like Figure 11 As shown, the mounting rail 430 is provided with a plug hole 431. Accordingly, the second mounting portion 412 may be provided with a plug connector that can be plugged into and connected to the plug hole 431. When securing the glass substrate 100, the second mounting portion 412 is adjusted to an appropriate position based on the size of the glass substrate 100 and connected to the mounting rail 430 at the corresponding position.

[0082] In this embodiment, a positioning portion is provided on the first seating portion 411, and the positioning portion is used to position the glass substrate 100. The positioning portion can be a protrusion or a groove. When the glass substrate 100 is installed, a predetermined portion on the glass substrate 100 abuts against the positioning portion, thereby achieving positioning of the glass substrate 100.

[0083] like Figure 8 As shown, the mounting assembly 400 further includes a first connecting portion 421 and a second connecting portion 422. The first connecting portion 421 and the second connecting portion 422 are disposed opposite each other along the second direction. The first direction and the second direction are perpendicular to each other and are both parallel to the bottom surface of the accommodating cavity 310.

[0084] The glass substrate 100 is clamped between the first connecting portion 421 and the second connecting portion 422. Since the protective member 200 is attached to the glass substrate 100, the protective member 200 is also clamped between the first connecting portion 421 and the second connecting portion 422 during installation, thereby securing the glass substrate 100 and the protective member 200 relative to each other. The areas where the first connecting portion 421 and the second connecting portion 422 contact the glass substrate 100 are elastic, preventing rigid contact and thereby protecting the glass substrate 100.

[0085] The first connection portion 421 is fixedly connected to the container 300. The first connection portion 421 and the container 300 can be fixed by screw connection, welding, integral molding, etc.

[0086] The second connecting portion 422 can move along the second direction to move closer to or farther from the first connecting portion 421. In this way, the position of the second connecting portion 422 can be adjusted according to the size of the glass substrate 100 to adjust the distance between the first connecting portion 421 and the second connecting portion 422, thereby adapting to the size of the glass substrate 100. The length of the second connecting portion 422 can also be adjusted according to the size of the glass substrate 100. Figure 8 As shown, arrow b is parallel to the second direction. The second connecting portion 422 and the container 300 can be detachably connected by screw connection, plug connection, etc.

[0087] In addition to the above-mentioned forms, the mounting assembly 400 may also adopt other structures. For example, the mounting assembly 400 includes a plurality of columns. When installing the glass substrate 100, the glass substrate 100 can be first placed in the receiving cavity 310. Subsequently, the columns are arranged along the circumference of the glass substrate 100. Each column abuts against the glass substrate 100 and the protective member 200, thereby securing the glass substrate 100 and the protective member 200. The outer surface of the column can be provided with an elastic layer to prevent the column from rigidly contacting the glass substrate 100, thereby protecting the glass substrate 100.

[0088] like Figure 6 and Figure 7 As shown, the container 300 is provided with a liquid inlet 320 and a liquid drain 330. The liquid inlet 320 is used to allow liquid to flow into the container 300, and the liquid drain 330 is used to drain the liquid in the container 300. The liquid inlet 320 and the liquid drain 330 are both connected to the accommodating cavity 310, wherein the liquid inlet 320 and the liquid drain 330 are connected to corresponding pipes, thereby realizing the injection and discharge of liquid.

[0089] In this embodiment, the bottom surface of the container 300 and the bottom surface of the accommodating cavity 310 are both flat and parallel to each other. When the container 300 is fixed before drilling, the levelness of the bottom surface of the accommodating cavity 310 should be less than 0.5 mm, thereby ensuring that the depth of the liquid in the accommodating cavity 310 remains consistent at all locations.

[0090] Reference Figure 7 The container 300 may be provided with at least four positioning holes 340, none of which communicate with the accommodating cavity 310. Screws are installed in the positioning holes 340 to secure the container 300 to the drilling rig's table. The central axes of at least three of the positioning holes 340 lie on the same pre-set plane, while the central axes of the remaining positioning holes 340 do not. This arrangement provides a foolproof method for ensuring the correct installation and positioning of the container 300.

[0091] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0092] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A method for drilling a glass substrate, characterized in that: include: Positioning a glass substrate and fixing the glass substrate in a container; Fixing the container so that the glass substrate is in a horizontal state; The glass substrate is drilled by a drilling machine; wherein, during the drilling process, the glass substrate is always below the liquid level in the container.

2. The method for drilling a glass substrate according to claim 1, wherein: Before positioning the glass substrate, a protective member is provided on the glass substrate; the protective member is used to protect the glass substrate and improve the drilling performance of the glass substrate; wherein, during the drilling process, the protective member and the glass substrate remain relatively fixed and the protective member is always below the liquid level in the container; The glass substrate comprises a first surface and a second surface, wherein the first surface and the second surface are respectively arranged on two sides in a thickness direction of the glass substrate; The protective member is attached to the first surface and / or the second surface.

3. The method for drilling a glass substrate according to claim 2, wherein: A protective coating is provided on the first surface and / or the second surface; wherein the protective coating is used to protect the glass substrate and improve the drilling processing performance of the glass substrate.

4. The method for drilling a glass substrate according to claim 1, wherein: During the drilling process, the spindle pressure foot of the drilling rig is always immersed in the liquid in the container.

5. The method for drilling a glass substrate according to claim 1, wherein: During the drilling process: Discharging the liquid in the container in real time to remove debris generated during the drilling process; Clean liquid is injected into the container in real time to keep the liquid level in the container at a preset height.

6. A device for drilling a hole in a glass substrate, applied to the method for drilling a hole in a glass substrate according to any one of claims 1 to 5, characterized in that: It comprises a container and a mounting assembly; wherein the accommodating cavity in the container is used to store liquid and a glass substrate, and the mounting assembly is used to install the glass substrate and fix the glass substrate in the accommodating cavity; The top of the container is an opening, which is communicated with the accommodating cavity; wherein the opening is used for a drill bit of a drilling rig to extend into the container to drill a hole in the glass substrate.

7. The device for drilling a hole in a glass substrate according to claim 6, wherein: The mounting assembly includes a first placement portion and a second placement portion; along the first direction, the first placement portion and the second placement portion are arranged opposite to each other; The glass substrate is clamped between the first placement portion and the second placement portion; The first placement portion is fixedly connected to the container; the second placement portion is movable along the first direction to approach or move away from the first placement portion; A positioning portion is provided on the first placement portion, and the positioning portion is used to position the glass substrate.

8. The device for drilling a hole in a glass substrate according to claim 7, wherein: The mounting assembly further includes a first connecting portion and a second connecting portion; the first connecting portion and the second connecting portion are arranged opposite to each other along the second direction; wherein the first direction and the second direction are perpendicular to each other and are both parallel to the bottom surface of the accommodating cavity; The glass substrate is clamped between the first connecting portion and the second connecting portion; The first connection portion is fixedly connected to the container; the second connection portion is movable along the second direction to move closer to or away from the first connection portion.

9. The device for drilling a hole in a glass substrate according to claim 6, wherein: The container is provided with a liquid inlet portion and a liquid discharge portion. The liquid inlet portion is used for allowing liquid to flow into the container, and the liquid discharge portion is used for discharging the liquid in the container.

10. The device for drilling a hole in a glass substrate according to claim 6, wherein: The bottom surface of the container and the bottom surface of the accommodating cavity are both planes and parallel to each other.

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