Curved glass flatness measuring device and method

Abstract

The present application provides a curved glass flatness measuring device and a measuring method, wherein the curved glass flatness measuring device comprises: a measuring workbench assembly, the measuring workbench assembly comprises a measuring workbench structure, a positioning structure and a supporting structure, the positioning structure and the supporting structure can be movably arranged on the workbench structure, the measuring workbench structure comprises a workbench plate, and the workbench plate is provided with a measuring through hole; a measuring assembly, the measuring assembly comprises a measuring mounting frame structure and a measuring device structure, the measuring frame structure is movably arranged on the workbench structure and is located at the lower side of the workbench plate, the measuring device structure is installed on the measuring mounting frame structure, the measuring device structure is arranged below the workbench plate and is arranged corresponding to the measuring through hole. The technical solution of the present application effectively solves the problem of uncontrollable deformation of 3D glass during hot bending in the prior art.

Description

Technical Field

[0001] The present application relates to the technical field of curved glass flatness measuring devices, and in particular to a curved glass flatness measuring device and a measuring method. Background Art

[0002] 3D glass is widely used in smart devices such as smartphones, smart wearable products and smart watches.

[0003] During the hot bending process of 3D curved glass, the glass surface will deform as a whole due to heat, and the glass plane and four corners will warp due to uneven force. During the hot bending process, the warping and flatness of the product plane cannot be effectively monitored, resulting in batch defects after the problem occurs, and the product cannot be reworked, and the product is scrapped, increasing costs. There are also some testing equipment with poor detection results, such as a fixture for measuring the warpage of large-size glass dry plates with application number 202010718743.8. Summary of the invention

[0004] A technical problem to be solved by the present application is that the deformation of 3D glass during thermal bending is uncontrollable.

[0005] To solve the above technical problems, an embodiment of the present application provides a curved glass flatness measuring device, including: a measuring workbench assembly, the measuring workbench assembly includes a measuring workbench structure, a positioning structure and a supporting structure, the positioning structure and the supporting structure can be movably arranged on the workbench structure, the measuring workbench structure includes a workbench plate, and the workbench plate is provided with a measuring through hole; a measuring assembly, the measuring assembly includes a measuring mounting frame structure and a measuring instrument structure, the measuring frame structure can be movably arranged on the workbench structure and is located at the lower side of the workbench plate, the measuring instrument structure is installed on the measuring mounting frame structure, and the measuring instrument structure is arranged below the workbench plate and is arranged corresponding to the measuring through hole.

[0006] In some embodiments, the measurer structure includes a micrometer, and the micrometer is set on the measurement mounting frame structure by fasteners.

[0007] In some embodiments, the measuring workbench structure includes two vertical plates, the workbench plate is located on the two vertical plates, each vertical plate is provided with a vertical long hole, and the measuring mounting frame structure is movably mounted in the vertical long hole.

[0008] In some embodiments, the measuring mounting frame structure includes two horizontal bars, four vertical bars and four diagonal bars. Each vertical plate has two vertical long holes. The two ends of each horizontal bar are connected to the two vertical bars respectively. The micrometer is installed in the middle of the two horizontal bars. One horizontal bar corresponds to two diagonal bars. The first end of each diagonal bar is connected to the horizontal bar, and the second end of the diagonal bar is connected to the vertical bar.

[0009] In some embodiments, the positioning structure includes a first positioning block and a second positioning block, the first positioning block is movably connected to the workbench along a first direction, the first positioning block extends along a second direction, the second positioning block is movably connected to the workbench along the second direction, the second positioning block extends along the first direction, and the first direction is perpendicular to the second direction.

[0010] In some embodiments, the support structure includes four support tables, which are movably disposed on the work table.

[0011] In some embodiments, four inclined grooves are arranged on the workbench, and the four inclined grooves radiate from the center to the edge, and the adjacent inclined grooves are 90 degrees.

[0012] In some embodiments, each support platform includes a screw, a nut and a platform body. The upper end of the screw is connected to the lower surface of the platform body. The upper surface of the platform body has a silicone layer. The screw is inserted into the inclined groove. The nut cooperates with the screw and is located at the lower part of the workbench.

[0013] According to another aspect of the present application, a method for measuring the flatness of curved glass is further provided. The method for measuring the flatness of curved glass adopts the above-mentioned measuring device, and the measuring method comprises the following steps:

[0014] Pre-processing is done through the sample in the hot bending machine;

[0015] Detect the deformation of sample parts;

[0016] If the deformation of the sample part meets the requirements, the product can be produced;

[0017] If the deformation of the sample part does not meet the requirements, adjustments are made and pre-processing with the sample part continues until the deformation requirements are met and product production is carried out.

[0018] In some embodiments, the sample is made of leather or polyurethane.

[0019] Through the above technical solution, the curved glass flatness measuring device provided by the present application is positioned by the positioning structure, the supporting structure supports the glass to be tested, and the measuring structure measures the glass to be tested. The measuring structure detects the glass to be tested through the measuring through hole of the workbench. Such a structure is compact and easy to operate, and the deformation of the 3D glass can be easily controlled through detection. The technical solution of the present application effectively solves the problem of uncontrollable deformation of 3D glass during hot bending in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic structural diagram of a curved glass flatness measuring device according to a first embodiment of the present application is shown;

[0022] Figure 2 Shows Figure 1 A schematic top view of a curved glass flatness measuring device;

[0023] Figure 3 Shows Figure 1 A structural schematic diagram of a measurement mounting frame structure;

[0024] Figure 4 A schematic diagram showing the deformation of the glass to be tested in the present application is shown.

[0025] Description of reference numerals:

[0026] 10. Measuring workbench assembly; 11. Measuring workbench structure; 111. Workbench plate; 112. Vertical plate; 113. Measuring through hole; 12. Positioning structure; 121. First positioning block; 122. Second positioning block; 13. Support structure; 20. Measuring assembly; 21. Measuring mounting frame structure; 211. Crossbar; 212. Vertical bar; 213. Diagonal bar; 22. Measuring device structure. DETAILED DESCRIPTION

[0027] The following is a further detailed description of the implementation methods of the present application in conjunction with the accompanying drawings and examples. The detailed descriptions of the following examples and the accompanying drawings are used to exemplarily illustrate the principles of the present application, but cannot be used to limit the scope of the present application. The present application can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

[0028] The present application provides these embodiments to make the present application thorough and complete, and to fully express the scope of the present application to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary, and not as limiting.

[0029] It should be noted that, in the description of this application, unless otherwise specified, the meaning of "multiple" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the orientation or positional relationship, are only for the convenience of describing this 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 cannot be understood as a limitation on this application. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0030] In addition, the words "first", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" does not mean vertical in the strict sense, but is within the tolerance range. "Parallel" does not mean parallel in the strict sense, but is within the tolerance range. "Include" or "comprising" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements.

[0031] It should also be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0032] All terms used in this application have the same meaning as those understood by those of ordinary skill in the art to which this application belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, such as general dictionaries, should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0033] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0034] like Figures 1 to 4As shown, in the technical solution of the first embodiment, the curved glass flatness measuring device includes: a measuring workbench assembly 10 and a measuring assembly 20. The measuring workbench assembly 10 includes a measuring workbench structure 11, a positioning structure 12 and a supporting structure 13. Both the positioning structure 12 and the supporting structure 13 are movably arranged on the workbench structure. The measuring workbench structure 11 includes a workbench plate 111. The workbench plate 111 is provided with a measuring through hole 113. The measuring assembly 20 includes a measuring mounting frame structure 21 and a measuring device structure 22. The measuring frame structure is movably arranged on the workbench structure and is located at the lower side of the workbench plate 111. The measuring device structure 22 is installed on the measuring mounting frame structure 21. The measuring device structure 22 is arranged below the workbench plate 111 and is arranged corresponding to the measuring through hole 113.

[0035] Through the above technical solution, the curved glass flatness measuring device provided in the first embodiment is positioned by the positioning structure 12, the supporting structure 13 supports the glass to be tested, and the measuring device structure 22 measures the glass to be tested. The measuring device structure 22 detects the glass to be tested through the measuring through hole 113 of the workbench 111. Such a structure is compact and easy to operate, and the deformation of the 3D glass can be easily controlled through detection. The technical solution of the first embodiment effectively solves the problem of uncontrollable deformation of 3D glass during hot bending in the prior art.

[0036] like Figure 2 As shown, in the technical solution of the first embodiment, the measuring device structure 22 includes a micrometer, which is arranged on the measuring mounting frame structure 21 through a fastener. The micrometer is relatively accurate in measurement, and the adjustable size can meet the deformation requirements of the 3D glass. It should be noted that the measuring through hole 113 is circular, and the area of ​​the measuring through hole 113 is between 1 / 8 and 1 / 15 of the area of ​​the glass to be tested. The area of ​​the measuring through hole 113 of the first embodiment is 1 / 11 of the area of ​​the glass to be tested. Figure 4 As shown, the deformation amount of the middle part downward is larger. Through experiments, it is found that choosing a ratio of 1 / 11 can better meet the needs of deformation detection.

[0037] like Figure 1As shown, in the technical solution of the first embodiment, the measuring workbench structure 11 includes two vertical plates 112, the workbench plate 111 is located on the two vertical plates 112, each vertical plate 112 is provided with a vertical long hole, and the measuring mounting frame structure 21 is movably installed in the vertical long hole. By adjusting the upper and lower positions of the measuring mounting frame structure 21, the versatility of the curved glass flatness measuring device of the first embodiment is improved, that is, the curved glass flatness measuring device of the first embodiment can detect glass to be tested of different sizes. The stability of the measuring workbench structure 11 is improved by setting the vertical plates 112, and the setting of the vertical long holes facilitates operation. It should be noted that in the first embodiment, the vertical rods of the measuring mounting frame structure 21 are provided with bolts, and the bolts pass through the vertical long holes. When adjusted in place, the nuts are matched with the bolts, and the nuts are pressed against the vertical plates 112 to achieve the fixation of the measuring mounting frame structure 21.

[0038] like Figure 4 As shown, in the technical solution of the first embodiment, the measuring mounting frame structure 21 includes two horizontal bars 211, four vertical bars 212 and four oblique bars 213. Each vertical plate 112 has two vertical long holes. The two ends of each horizontal bar 211 are connected to the two vertical bars 212 respectively. The micrometer is installed in the middle of the two horizontal bars 211. One horizontal bar corresponds to two oblique bars 213. The first end of each oblique bar 213 is connected to the horizontal bar, and the second end of the oblique bar 213 is connected to the vertical bar 212. Figure 4 The force analysis in this way reduces the flexural deformation of the crossbar 211, making the measurement more accurate. It should be noted that the vertical bar 212 and the vertical plate 112 have mutually matching sliding grooves and sliding rails, which makes the movement more stable.

[0039] like Figure 1 and Figure 2 As shown, in the technical solution of the first embodiment, the positioning structure 12 includes a first positioning block 121 and a second positioning block 122, the first positioning block 121 is movably connected to the workbench 111 along the first direction, the first positioning block 121 extends along the second direction, the second positioning block 122 is movably connected to the workbench 111 along the second direction, the second positioning block 122 extends along the first direction, and the first direction is perpendicular to the second direction. The first positioning block 121 and the second positioning block 122 can be adjusted, so that different sizes of glass to be detected can be applied. The extension of the first positioning block 121 and the second positioning block 122 ensures that the positioning of the glass to be detected is more accurate.

[0040] like Figure 1 and Figure 2As shown, in the technical solution of the first embodiment, the support structure 13 includes four support platforms, and the four support platforms are movably arranged on the workbench 111. The structure of the four support platforms makes it more stable to support the glass to be tested. In addition, it should be noted that the wear of the glass to be tested can be reduced by the structure of the four support platforms.

[0041] like Figure 1 and Figure 2 As shown, in the technical solution of the first embodiment, four inclined grooves are arranged on the workbench, and the four inclined grooves radiate from the center to the edge, and the adjacent inclined grooves are 90°. The four inclined grooves of the above structure cooperate with the four support tables, so that the supporting force of the four support tables on the glass to be inspected is relatively balanced. It should be noted that the angle between the four inclined grooves and the first direction and the second direction is 45°, and there is a gap between the first positioning block 121 and the second positioning block 122, so that when one of the support tables moves, it will not interfere with the first positioning block 121 and the second positioning block 122. Figure 2 As shown, the first positioning block 121 is on the rear side of the workbench 111, and the second positioning block 122 is on the left side of the workbench 111. The structure of one first positioning block 121 and one second positioning block 122 facilitates the placement and picking of the glass to be inspected.

[0042] like Figure 1 and Figure 2 As shown, in the technical solution of the first embodiment, each support platform includes a screw, a nut and a platform body, the upper end of the screw is connected to the lower surface of the platform body, the upper surface of the platform body has a silicone layer, the screw is inserted into the inclined groove, and the nut cooperates with the screw and is located at the lower part of the workbench 111. The above structure is convenient for disassembly, assembly and movement. The platform body is disc-shaped, which is convenient for processing and makes the force on the glass to be tested more balanced. The setting of the silicone layer makes the glass to be tested not easy to be scratched.

[0043] From the above, we can know that the conventional production temperature of the hot bending machine is 700℃. When the equipment is cooled, the PU rubber material is attached to the surface of the graphite mold. Through the pressing station, the pressure rod / pressing plate will produce an imprint. After the mold is discharged, the surface flatness is confirmed to facilitate targeted adjustments.

[0044] The technical solution of the second embodiment differs from that of the first embodiment in that the measuring component 20 further includes an image collector structure, and the image collector structure is arranged corresponding to the scale of the micrometer.

[0045] The image collector includes a camera and a display. The camera is arranged on the measuring mounting frame structure 21 and corresponds to the micrometer, and is used to observe the micrometer, so that the operator does not need to repeatedly observe under the workbench 111. The display can be placed on one side of the measuring workbench structure 11 or on the measuring workbench 111, and the camera and the display are electrically connected.

[0046] The present application also provides a method for measuring the flatness of curved glass. The method for measuring the flatness of curved glass adopts the above-mentioned measuring device, and the measuring method includes the following steps: pre-processing through a template in a hot bending machine; detecting the deformation of the template piece; if the deformation of the template piece meets the requirements: the product can be produced; if the deformation of the template piece does not meet the requirements, adjustments are made, and the template piece is continued to be pre-processed until it meets the deformation requirements, and the product is produced. Pre-processing through the template greatly improves the qualified rate of product processing and inspection, and saves costs. According to practice, although the leveling meets the requirements, unqualified products may occur during hot bending. The phenomenon of unqualified products can be greatly reduced by pre-processing the template. It should be noted that the material of the template is made of leather or polyurethane. The deformation of the above-mentioned material can be maintained for a certain period of time, and the detection template can be detected by the naked eye or the curved glass flatness measuring device.

[0047] So far, various embodiments of the present application have been described in detail. In order to avoid obscuring the concept of the present application, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed herein.

[0048] Although some specific embodiments of the present application have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict.

Claims

1. A curved glass flatness measuring device, characterized in that: include: A measuring workbench assembly (10), the measuring workbench assembly (10) comprising a measuring workbench structure (11), a positioning structure (12) and a supporting structure (13), the positioning structure (12) and the supporting structure (13) both being movably arranged on the workbench structure, the measuring workbench structure (11) comprising a workbench plate (111), and the workbench plate (111) being provided with a measuring through hole (113); A measuring assembly (20), the measuring assembly (20) comprising a measuring mounting frame structure (21) and a measuring device structure (22), the measuring frame structure being movably arranged on the workbench structure and being located at the lower side of the workbench plate (111), the measuring device structure (22) being installed on the measuring mounting frame structure (21), the measuring device structure (22) being arranged below the workbench plate (111) and corresponding to the measuring through hole (113).

2. The curved glass flatness measuring device according to claim 1, characterized in that: The measuring device structure (22) comprises a micrometer, and the micrometer is arranged on the measuring mounting frame structure (21) through a fastener.

3. The curved glass flatness measuring device according to claim 2, characterized in that: The measuring workbench structure (11) comprises two vertical plates (112), the workbench plate (111) is located on the two vertical plates (112), each of the vertical plates (112) is provided with a vertical long hole, and the measuring mounting frame structure (21) is movably mounted in the vertical long hole.

4. The curved glass flatness measuring device according to claim 3, characterized in that: The measuring mounting frame structure (21) comprises two cross bars, four vertical bars and four diagonal bars, each of the vertical plates (112) has two vertical long holes, the two ends of each cross bar are respectively connected to the two vertical bars, the micrometer is installed in the middle of the two cross bars, one cross bar corresponds to two diagonal bars, the first end of each diagonal bar is connected to the cross bar, and the second end of each diagonal bar is connected to the vertical bar.

5. The curved glass flatness measuring device according to any one of claims 1 to 4, characterized in that: The positioning structure (12) comprises a first positioning block (121) and a second positioning block (122), wherein the first positioning block (121) is movably connected to the workbench (111) along a first direction, and the first positioning block (121) extends along a second direction, and the second positioning block (122) is movably connected to the workbench (111) along the second direction, and the second positioning block (122) extends along the first direction, and the first direction is perpendicular to the second direction.

6. The curved glass flatness measuring device according to claim 5, characterized in that: The support structure (13) comprises four support platforms, and the four support platforms are movably arranged on the workbench plate (111).

7. The curved glass flatness measuring device according to claim 6, characterized in that: The workbench is provided with four inclined grooves, which radiate from the center to the edge, and the adjacent inclined grooves are 90 degrees.

8. The curved glass flatness measuring device according to claim 7, characterized in that: Each support platform comprises a screw, a nut and a platform body, the upper end of the screw is connected to the lower surface of the platform body, the upper surface of the platform body has a silicone layer, the screw is inserted into the inclined groove, and the nut cooperates with the screw and is located at the lower part of the workbench (111).

9. A method for measuring the flatness of curved glass, characterized in that: The method for measuring the flatness of curved glass adopts the measuring device described in any one of claims 1 to 8, and the measuring method comprises the following steps: Pre-processing is done through the sample in the hot bending machine; Detect the deformation of sample parts; If the deformation of the sample part meets the requirements, the product can be produced; If the deformation of the sample part does not meet the requirements, adjustments are made and pre-processing with the sample part continues until the deformation requirements are met and product production is carried out.

10. The method for measuring the flatness of curved glass according to claim 9, characterized in that: The material of the sample is made of leather or polyurethane.

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