Glass cutting objective table and glass cutting machine

Abstract

The utility model relates to a glass cutting objective table and a glass cutting machine. The glass cutting objective table comprises a carrying table assembly and an auxiliary tool assembly. The carrying table assembly comprises a plane carrying table, and a plurality of vacuum adsorption holes are formed in the plane carrying table; the auxiliary tool assembly comprises a curved surface cushion layer, the curved surface cushion layer is arranged on the plane carrying table, the top face of the curved surface cushion layer is a bearing face for bearing glass to be cut, the bearing face is in a curved surface shape matched with the glass to be cut, and a plurality of adsorption hole channels are formed in the bearing face and communicate with the vacuum adsorption holes in a one-to-one correspondence mode. The curved surface cushion layer is additionally arranged on the plane carrying table, and the adsorption hole channels in one-to-one correspondence are formed in the curved surface cushion layer, so that the UTG glass can be completely attached to the curved surface cushion layer, the stability of the carrying table for supporting the glass is improved, the situation of adsorption air leakage is avoided, the problem that the glass is broken due to stress release after being cut can be solved, and the service life of the UTG glass is prolonged. Therefore, the cutting problem caused by glass warping is solved, and the glass cutting precision, speed and yield are improved.

Description

Technical Field

[0001] This application relates to the field of glass laser cutting technology, and more specifically, to a glass cutting stage and a glass cutting machine. Background Technology

[0002] Ultra-thin flexible glass (UTG) requires shape cutting during processing to match the display size of the equipment. Proper placement of the glass during cutting is crucial for its safety and cutting accuracy. Compared to traditional clamping methods that easily scratch the glass, some more advanced manufacturing processes have begun to employ adsorption fixing techniques. For example, Chinese patent 202211315016.2 discloses an integrated screen glass cutting and fixing platform that uses adsorption ports on the platform to fix the glass. However, when transferring the glass to the cutting process for fixed-size cutting, UTG glass is prone to air leakage during laser cutting due to factors such as excessive warping of the incoming material. This can render vacuum adsorption positioning ineffective, affecting cutting accuracy and stability. Furthermore, due to the warping of the glass, stress release after cutting can easily cause the cut product to break, impacting processing efficiency and product yield. Utility Model Content

[0003] This application provides a glass cutting stage and a glass cutting machine to solve the problem in existing laser cutting technology where UTG glass is prone to ineffective vacuum adsorption and fixation of the platform during the cutting process due to excessive glass warping, which affects the cutting accuracy and stability of the product, reduces processing efficiency and product yield.

[0004] A glass cutting stage according to this application includes:

[0005] A stage assembly, comprising a planar stage with multiple vacuum adsorption holes provided on the planar stage;

[0006] The auxiliary tooling assembly includes a curved pad layer, which is set on a flat platform. Its top surface is a support surface for supporting the glass to be cut. The support surface matches the curved shape of the glass to be cut and is provided with multiple adsorption channels. The adsorption channels are connected to the vacuum adsorption holes one by one.

[0007] In some embodiments, a heat-resistant coating is also provided on the support surface of the curved pad, and the hardness of both the heat-resistant coating and the curved pad is less than the hardness of the glass to be cut.

[0008] In some embodiments, the curved pad is made of acrylic and the heat-resistant coating is made of Teflon.

[0009] In some embodiments, a positioning mechanism is provided between the planar platform and the curved pad, the positioning mechanism including a positioning hole and a positioning block that cooperate with each other, or including a threaded hole and a positioning bolt that cooperate with each other.

[0010] In some embodiments, a sealing groove is provided around each vacuum adsorption hole on the planar stage, and a sealing gasket is provided in the sealing groove, the thickness of the sealing gasket being greater than the depth of the sealing groove.

[0011] In some embodiments, multiple sets of curved pads are provided, with different shapes for each set of curved pads, and each set of curved pads is engraved with a batch code block of the glass that matches it.

[0012] In some embodiments, a positioning edge is also provided on the curved pad, which is a raised structure that matches and abuts against the positioning edge or positioning angle of the glass to be cut.

[0013] In some embodiments, the curved pad is an assembled structure, formed by splicing together multiple independent blocks.

[0014] In some embodiments, the horizontal projection surface of the curved pad is rectangular, and the adsorption channels are uniformly distributed within the horizontal projection range of the curved pad.

[0015] According to another aspect of this application, a glass cutting machine is disclosed, which includes the glass cutting stage as described above.

[0016] The glass cutting stage according to this application includes a stage assembly and an auxiliary tooling assembly. The stage assembly includes a flat stage with multiple vacuum adsorption holes. The auxiliary tooling assembly includes a curved pad layer disposed on the flat stage. The top surface of the curved pad layer serves as a support surface for the glass to be cut, matching the curved shape of the glass and having multiple adsorption channels that correspond one-to-one with the vacuum adsorption holes. By adding a curved pad layer to the flat stage and providing corresponding adsorption channels, this application ensures complete adhesion between the UTG glass and the curved pad layer. This improves the stability of the stage supporting the glass and prevents air leakage during vacuum adsorption, thereby enhancing the glass positioning and adsorption effect. Furthermore, the curved pad layer adhesion support method reduces the risk of glass breakage due to stress release after cutting, effectively overcoming cutting problems caused by glass warping and improving the cutting accuracy, cutting speed, and product yield of UTG glass. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0018] To more clearly illustrate the technical solutions in the embodiments of this application 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.

[0019] Figure 1 This paper shows an isometric structural schematic diagram of a glass cutting stage according to an embodiment of the present application;

[0020] Figure 2 A top view of the glass cutting stage according to an embodiment of this application is shown.

[0021] Figure 3 This paper shows a schematic diagram of the main structure of the glass cutting stage according to an embodiment of the present application;

[0022] Figure 4 A schematic diagram of the left side of the glass cutting stage according to an embodiment of this application is shown;

[0023] The above figures include the following reference numerals:

[0024] 1. Stage assembly; 11. Planar stage; 12. Vacuum adsorption hole; 13. Sealing groove; 14. Sealing gasket; 2. Auxiliary tooling assembly; 21. Curved pad; 22. Adsorption channel; 23. Heat-resistant coating. Detailed Implementation

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0027] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, rotated 90 degrees, or in other orientations, and the spatial relative descriptions used herein will be interpreted accordingly.

[0028] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0029] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0030] Figures 1 to 4 An embodiment of the glass cutting stage of this application is illustrated schematically.

[0031] like Figures 1 to 4As shown, this application discloses a glass cutting stage, which includes: a stage assembly 1, which includes a planar stage 11 with a plurality of vacuum adsorption holes 12; and an auxiliary tooling assembly 2, which includes a curved pad 21 disposed on the planar stage 11. The curved pad 21 has a top surface that supports the glass to be cut, and the surface shape matches the curved shape of the glass to be cut. The auxiliary tooling assembly 2 also has a plurality of adsorption channels 22, which are connected to the vacuum adsorption holes 12 one-to-one.

[0032] Through the above structural design, this embodiment of the application adds a curved pad 21 to the planar stage 11 and sets corresponding adsorption channels 22 on the curved pad 21, thereby enabling it to reliably adhere to the UTG glass to be cut, improving the stability of the glass support, avoiding air leakage during adsorption, and ensuring the accuracy of the stage's vacuum adsorption and fixation of the glass. Furthermore, the curved pad support method used in this application also avoids the problem of glass cracking due to stress release after cutting, effectively improving the cutting accuracy, cutting speed, and product yield of UTG glass.

[0033] In some embodiments of this application, such as Figure 1 and Figure 2 As shown, a heat-resistant coating 23 is also provided on the supporting surface of the curved pad 21. Since laser cutting technology uses a high-energy laser beam for focused irradiation and cutting, it generates a large amount of heat. In this embodiment, a heat-resistant coating 23 is provided on the surface of the curved pad 21 to protect it from damage caused by the high temperature of the laser, improving the durability of the stage and extending its service life. Furthermore, in this embodiment, the hardness of both the heat-resistant coating 23 and the curved pad 21 is less than the hardness of the glass to be cut, effectively protecting the glass and preventing scratches during the bonding and support of the UTG glass, thereby improving the product quality of the cut glass.

[0034] In some embodiments of this application, the curved pad 21 is made of acrylic, and the heat-resistant coating 23 is made of Teflon. Acrylic is an early-developed malleable polymer material with good chemical stability and weather resistance. It is easy to process and produce, and is inexpensive. Its hardness fully meets the requirements of this application for supporting the glass and preventing glass scratches. Teflon is a high-performance coating with good heat resistance, wear resistance, and chemical stability, and a low coefficient of friction. It can effectively achieve heat insulation, protecting the curved acrylic pad 21 from high-temperature corrosion, and also effectively protect the glass surface, preventing scratches and improving product quality. In actual production, the Teflon heat-resistant coating 23 can be formed on the surface of the curved acrylic pad 21 by coating or tape application.

[0035] In some embodiments of this application, a positioning mechanism (not shown) is also provided between the planar platform 11 and the curved pad 21. The positioning mechanism is used to connect and position the curved pad 21 to the planar platform 11, ensuring that the curved pad 21 does not slide or move during the cutting process. The positioning mechanism may include, for example, mutually cooperating positioning holes and positioning blocks, with the positioning holes respectively provided on the planar platform 11 and the curved pad 21, allowing the curved pad 21 to be quickly and easily installed onto the planar platform 11 via a vertical insertion method; alternatively, the positioning mechanism may include mutually cooperating threaded holes and positioning bolts, with threaded holes provided on the planar platform 11 and positioning bolts passing through the curved pad 21, achieving a more secure bolted connection. When using threaded holes and positioning bolts, the curved pad 21 is provided with countersunk through holes, allowing the positioning bolts to be recessed below the surface support, thus avoiding interference with the adsorption of the UTG glass.

[0036] In some embodiments of this application, such as Figure 1 , Figure 2 and Figure 4 As shown, a sealing groove 13 is provided around each vacuum adsorption hole 12 on the planar stage 11. A sealing gasket 14 is provided within the sealing groove 13, and the thickness of the sealing gasket 14 is greater than the depth of the sealing groove 13. The sealing gasket 14 is used to improve the airtightness between the vacuum adsorption hole 12 and the adsorption channel 22. The sealing gasket 14 is made of a rubber material, and its thickness is greater than the depth of the sealing groove 13, so that the curved pad layer 21 can press it tightly and maintain the reliability of the seal. In some embodiments of this application, the sealing gasket 14 is usually used in conjunction with the positioning mechanism of the threaded hole and the positioning bolt to meet the clamping force requirements between the planar stage 11 and the curved pad layer 21.

[0037] In some embodiments of this application, the glass cutting stage is provided with multiple sets of different curved surface pads 21, each with a different shape to accommodate different batches of UTG glass. In practical applications, each set of curved surface pads 21 is engraved with a batch code block matching the glass for easy identification. Understandably, the adsorption channels 22 of each curved surface pad 21 are uniformly positioned to cooperate with the flat stage 11 at the bottom, achieving curved surface fit support and vacuum adsorption fixation.

[0038] In some embodiments of this application, the curved pad 21 of the glass cutting stage is further provided with a positioning edge. The positioning edge is a raised structure that matches and abuts against the positioning edge or positioning angle of the glass to be cut, so as to facilitate the uniform positioning of the glass to be cut, ensure the consistency of its cutting position, improve positioning accuracy and positioning speed, and improve cutting processing efficiency and product quality.

[0039] In some embodiments of this application, the curved pad 21 of the glass cutting stage is an assembled structure, formed by splicing together multiple independent blocks. For large UTG glass, the mold and manufacturing costs of the curved pad 21 used for cutting are high, and the shapes of UTG glass in adjacent batches are similar, with only minor adjustments such as at the edges. Therefore, this application sets the curved pad 21 of the stage as an assembled structure to meet the cutting needs of glass with similar shapes, thereby reducing mold and manufacturing costs and facilitating replacement and maintenance.

[0040] In some embodiments of this application, such as Figures 1 to 4 As shown, the horizontal projection surface of the curved pad 21 is rectangular, and the adsorption channels 22 are evenly distributed within the horizontal projection range of the curved pad 21 to achieve stable and reliable adsorption of the rectangular UTG glass.

[0041] This application also discloses a glass cutting machine, which includes a glass cutting stage as described in the above embodiment. The glass cutting stage with auxiliary tooling assembly 2 solves the problem that excessive warping of UTG glass leads to weak support and vacuum adsorption, affecting cutting accuracy, reducing product yield, and easily causing product breakage.

[0042] In some embodiments of this application, the thickness of the auxiliary tooling assembly 2 is subject to an overall upper limit constraint, meaning it must not be too close to the laser cutting head of the glass cutting machine to avoid affecting the cutting action due to excessive glass lifting distance. Typically, in actual production, the distance between the laser cutting head and the flat stage 11 is 2.5-3.5 cm, and the height of the curved pad 21 does not exceed 1.5 cm to ensure a cutting gap of at least 1 cm. In some preferred embodiments of this application, the laser cutting head of the glass cutting machine is also equipped with a distance measuring mechanism and a lifting mechanism. By detecting the distance to the cutting head and lifting the laser cutting head, the cutting distance can be re-set, ensuring smooth cutting operation.

[0043] In summary, the glass cutting stage of this application includes: a stage assembly and an auxiliary tooling assembly; the stage assembly includes a planar stage with multiple vacuum adsorption holes; the auxiliary tooling assembly includes a curved pad layer disposed on the planar stage, the top surface of which serves as a support surface for the glass to be cut, the support surface matching the curved shape of the glass to be cut, and is provided with multiple adsorption channels, each corresponding to and connected to a vacuum adsorption hole. By adding a curved pad layer to the planar stage and providing corresponding adsorption channels on the curved pad layer, this application ensures complete adhesion between the UTG glass and the curved pad layer, improving the stability of the stage supporting the glass and preventing air leakage during vacuum adsorption, thereby improving the positioning and adsorption effect of the glass; furthermore, the curved pad layer adhesion support method used in this application reduces the problem of glass breakage due to stress release after cutting, effectively overcoming the cutting problems caused by glass warping and improving the cutting accuracy, cutting speed, and product yield of UTG glass.

[0044] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A glass cutting stage, characterized in that, include: A stage assembly (1) includes a planar stage (11) on which a plurality of vacuum adsorption holes (12) are provided; The auxiliary tooling assembly (2) includes a curved pad (21), which is disposed on the planar stage (11). Its top surface is a support surface for supporting the glass to be cut. The support surface is a curved surface that matches the shape of the glass to be cut and is provided with a plurality of adsorption channels (22). The adsorption channels (22) are connected to the vacuum adsorption holes (12) one by one.

2. The glass cutting stage according to claim 1, characterized in that, A heat-resistant coating (23) is also provided on the supporting surface of the curved pad (21), and the hardness of the heat-resistant coating (23) and the curved pad (21) is less than the hardness of the glass to be cut.

3. The glass cutting stage according to claim 2, characterized in that, The curved pad (21) is made of acrylic material, and the heat-resistant coating (23) is made of Teflon material.

4. The glass cutting stage according to claim 1, characterized in that, A positioning mechanism is provided between the planar platform (11) and the curved pad (21). The positioning mechanism includes a positioning hole and a positioning block that cooperate with each other, or a threaded hole and a positioning bolt that cooperate with each other.

5. The glass cutting stage according to claim 4, characterized in that, On the planar stage (11), a sealing groove (13) is provided around each of the vacuum adsorption holes (12), and a sealing gasket (14) is provided in the sealing groove (13), the thickness of the sealing gasket (14) being greater than the depth of the sealing groove (13).

6. The glass cutting stage according to claim 1, characterized in that, The curved pad (21) is provided in multiple groups, and the shapes of the curved pads (21) in different groups are different. Each group of curved pads (21) is engraved with a batch code block of the glass that matches it.

7. The glass cutting stage according to claim 1, characterized in that, The curved pad (21) is also provided with a positioning edge, which is a raised structure that matches and abuts against the positioning edge or positioning angle of the glass to be cut.

8. The glass cutting stage according to claim 1, characterized in that, The curved pad (21) is an assembled structure, formed by splicing together multiple independent blocks.

9. The glass cutting stage according to claim 1, characterized in that, The horizontal projection surface of the curved pad (21) is rectangular, and the adsorption channels (22) are evenly distributed within the horizontal projection range of the curved pad (21).

10. A glass cutting machine, characterized in that, The glass cutting machine includes a glass cutting stage as described in any one of claims 1 to 9.

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