Calibration method, calibration device and calibration tool

Abstract

The application provides a calibration method, a calibration device and a calibration tool. The calibration method is applied to the calibration tool. The calibration tool is provided with a calibration block. The calibration block is used for calibrating the edge of glass and is non-transparent. The calibration method comprises the following steps: aligning the edge of glass to be pasted with a film with the calibration block, and placing the glass on the calibration tool; and taking the calibration block as the calibration of the edge of glass, so that the edge of the target film can be pasted with the glass according to the calibration. Since the calibration block used for calibrating the edge of glass is no longer transparent, the visual image for calibration is no longer disturbed by redundant lines, the edge of glass can be accurately calibrated, and the precision of glass pasting is improved.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more particularly to a calibration method, calibration device, and calibration tool. Background Technology

[0002] In order to provide more comprehensive protection for vehicles, it is necessary to apply film to the vehicle windows. Anti-shattering film (ASF) is a specific type of film.

[0003] Currently, the main method for applying ASF (Anti-Frost Film) to vehicle glass is as follows: First, the glass to be coated is fixed in place. Then, the edges of the glass are marked. Next, the edges of the ASF are aligned with the marked glass edges, and then the ASF is gradually adhered to the glass. This completes the process of applying the ASF to the vehicle glass.

[0004] However, during the calibration process of the glass edge, when looking at the glass edge, four edges will be observed. This is because the light source, viewed from above, penetrates the glass ink. Combined with the inherent properties of the glass, this affects the visual image, resulting in the appearance of four edges: the top edge, the bottom edge, the top bevel, and the bottom bevel. This interferes with visual calibration, leading to errors in the glass edge calibration and consequently reducing the accuracy of ASF (Anti-Frost Surface Finish) application to the vehicle glass. Summary of the Invention

[0005] The purpose of this application is to provide a calibration method, calibration device, and calibration tool to improve the accuracy of glass film application.

[0006] To address the aforementioned technical problems, this application provides the following technical solutions:

[0007] The first aspect of this application provides a calibration method applied to a calibration tool, the calibration tool having a calibration block, the calibration block being used to calibrate the edge of glass and being non-transparent, the method comprising: aligning the edge of the glass to be coated with the calibration block and placing it on the calibration tool; using the calibration block as a calibration of the edge of the glass, so that the edge of the target film can be adhered to the glass according to the calibration.

[0008] A second aspect of this application provides a calibration device applied to a calibration tool. The calibration tool includes a calibration block, which is used to calibrate the edge of a glass and is non-transparent. The device includes: a placement module for aligning the edge of the glass to be coated with the calibration block and placing it on the calibration tool; and a calibration module for using the calibration block as a calibration of the edge of the glass, so that the edge of the target film can be adhered to the glass according to the calibration.

[0009] A third aspect of this application provides a calibration tool, which includes a calibration block for calibrating the edge of a glass and is non-transparent. When the calibration tool is in operation, it performs the method described in the first aspect.

[0010] Compared to existing technologies, the calibration method provided in the first aspect of this application includes a non-transparent calibration block in the calibration tool for calibrating the glass edge. The glass edge is then aligned with the calibration block and placed on the calibration tool, using the calibration block as the calibration point for the glass edge, allowing the target film edge to adhere to the glass according to the calibration. Because the calibration block used for calibrating the glass edge is no longer transparent, the visual image during calibration is free of extraneous lines, enabling accurate calibration of the glass edge and improving the precision of glass film application. Furthermore, it reduces the difficulty of calibrating, enabling rapid calibrating and improving the efficiency of glass film application. Additionally, the precise glass film application avoids the problem of unusable glass and film due to low application precision, thus saving on the cost of glass and film.

[0011] The calibration apparatus provided in the second aspect and the calibration tool provided in the third aspect of this application have the same or similar beneficial effects as the calibration method provided in the first aspect. Attached Figure Description

[0012] The above and other objects, features, and advantages of exemplary embodiments of this application will become readily understood by reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of this application are illustrated by way of example and not limitation, with the same or corresponding reference numerals denoteing the same or corresponding parts, wherein:

[0013] Figure 1 This is a schematic diagram of the glass structure in an embodiment of this application;

[0014] Figure 2 This diagram illustrates the process of calibrating glass in the prior art. Figure 1 ;

[0015] Figure 3 This diagram illustrates the process of calibrating glass in the prior art. Figure 2 ;

[0016] Figure 4 This is a schematic diagram of the calibration tool in the embodiments of this application. Figure 1 ;

[0017] Figure 5 This is a flowchart illustrating the calibration method in an embodiment of this application;

[0018] Figure 6 This is a schematic diagram of the calibration performed in the embodiments of this application. Figure 1 ;

[0019] Figure 7 This is a schematic diagram of the calibration performed in the embodiments of this application. Figure 2 ;

[0020] Figure 8 This is a schematic diagram of the calibration performed in the embodiments of this application. Figure 3 ;

[0021] Figure 9 This is a schematic diagram of the calibration performed in the embodiments of this application. Figure 4 ;

[0022] Figure 10 This is a schematic diagram of the calibration tool in the embodiments of this application. Figure 2 ;

[0023] Figure 11 This is a schematic diagram of the calibration tool in the embodiments of this application. Figure 3 ;

[0024] Figure 12 This is a schematic diagram of the calibration tool in the embodiments of this application. Figure 4 ;

[0025] Figure 13 This is a schematic diagram of the calibration performed in the embodiments of this application. Figure 5 ;

[0026] Figure 14 This is a schematic diagram of the calibration device in the embodiments of this application. Detailed Implementation

[0027] Exemplary embodiments of this application will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of this application and to fully convey the scope of this application to those skilled in the art.

[0028] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application pertains.

[0029] Currently, the process of applying window film to vehicle windows mainly involves calibrating the edges of the glass and then applying the film according to these calibrations. However, due to the characteristics of glass, the edges appear as four distinct lines when viewed visually: the top edge, the bottom edge, the upper chamfer, and the lower chamfer. This can interfere with visual alignment and lead to errors in calibrating, thereby reducing the accuracy of the window film application.

[0030] Figure 1This is a schematic diagram of the glass structure in an embodiment of this application. See also... Figure 1 As shown, sometimes, in order to adapt the glass 10 to the corresponding scene, the glass 10 is cut into various shapes. In 1a, the glass 10 is in the shape of a rectangular bend. 1b is an enlargement of the corner of the glass 10 in 1a. In order to make the glass 10 more rounded, the edge of the glass 10 is processed, and the edge of the glass 10 will show four sides, namely, the upper edge 101, the lower edge 102, the upper chamfer 103, and the lower chamfer 104.

[0031] Figure 2 This diagram illustrates the process of calibrating glass in the prior art. Figure 1 See Figure 2 As shown, glass 10 is placed on calibration apparatus 20, light source 301 illuminates glass 10, and camera 302 takes pictures of the edge of glass 10 to calibrate the edge of glass 10. Generally, light source 301 and camera 302 appear in pairs, and in order to ensure the accuracy of the calibration of the edge of glass 10, two pairs of light source 301 and camera 302 are used to calibrate the edge of glass 10.

[0032] Figure 3 This diagram illustrates the process of calibrating glass in the prior art. Figure 2 See Figure 3 As shown in 3a, the corner edge of the glass 10 is photographed using light source 301 and camera 302, and after calibration, the calibrated image is shown in 3b. In 3b, the upper edge, lower edge, upper chamfer, and lower chamfer of the glass 10 appear as four lines, namely line 105, line 106, line 107, and line 108. This can interfere with visual calibration, potentially capturing incorrect lines and thus reducing the accuracy of the glass film application.

[0033] The inventors discovered through research that if a method for calibrating the glass edge that is not affected by the properties of glass could be invented, replacing the direct gripping and marking of the glass edge, then visual interference could be avoided, accurate gripping could be achieved, and the accuracy of glass film application could be improved.

[0034] In view of this, embodiments of this application provide a calibration method, calibration device, and calibration tool. The calibration tool includes a non-transparent calibration block for calibrating the glass edge. The glass edge is then aligned with the calibration block and placed on the calibration tool, using the calibration block as the calibration point for the glass edge, allowing the target film edge to adhere to the glass according to the calibration. Because the calibration block used for calibrating the glass edge is no longer transparent, the visual image during calibration is free of extraneous lines, enabling accurate calibration of the glass edge and improving the precision of glass film application. Furthermore, it reduces the difficulty of calibrating, enabling rapid calibrating and improving the efficiency of glass film application. Additionally, the precise glass film application avoids the problem of unusable glass and film due to low application precision, thus saving on the cost of glass and film.

[0035] First, the calibration method provided in the embodiments of this application will be described in detail.

[0036] The calibration method provided in this application embodiment is applied to a calibration tool, which is provided with a calibration block. The calibration block is used to calibrate the edge of the glass and is non-transparent.

[0037] Figure 4 This is a schematic diagram of the calibration tool in the embodiments of this application. Figure 1 See Figure 4 As shown, the calibration tool 40 includes a calibration block 401. The calibration block 401 allows for the calibration of the glass edge; that is, by observing the position of the calibration block 401, the location of the glass edge can be determined. Furthermore, the calibration block 401 is opaque, reducing visual interference caused by clear light. This means that multiple interfering lines will not be generated in the visual image, enabling efficient and accurate calibration to locate the glass edge and achieve precise glass film application.

[0038] In practical applications, the calibration tool can use one or more calibration blocks, as long as they are sufficient to locate the edge of the glass. There is no specific limitation on the number of calibration blocks used. Preferably, two blocks are used, aligned in a straight line, which minimizes the number of calibration blocks required while maximizing the accuracy of the glass edge calibration.

[0039] Figure 5 This is a flowchart illustrating the calibration method in an embodiment of this application. See also... Figure 5 As shown, the method may include:

[0040] S501: Align the edge of the glass to be coated with the calibration block and place it on the calibration tool.

[0041] S502: Use the calibration block as the calibration of the glass edge so that the edge of the target film can be bonded to the glass according to the calibration.

[0042] Figure 6 This is a schematic diagram of the calibration performed in the embodiments of this application. Figure 1 See Figure 6 As shown, one side 101 of the glass 10 is aligned with one side 4011 of the calibration block 401. In this way, the side 4011 of the calibration block 401 can represent the side 101 of the glass 10. Furthermore, the calibration block 401 is opaque, so there will be no multiple sides during the labeling process, allowing for accurate labeling. The position of the side 101 of the glass 10 is determined by the position of the side 4011 of the calibration block 401, thus initiating the film application process.

[0043] As described above, the calibration method provided in this application includes a non-transparent calibration block in the calibration tool for calibrating the glass edge. The glass edge is then aligned with the calibration block and placed on the calibration tool, using the calibration block as the calibration point for the glass edge. This allows the target film edge to adhere to the glass according to the calibration. Because the calibration block used for calibrating the glass edge is no longer transparent, the visual image during calibration is free of extraneous lines, enabling accurate calibration of the glass edge and improving the precision of glass film application. Furthermore, it reduces the difficulty of calibrating, enabling rapid calibrating and improving the efficiency of glass film application. Additionally, the precise glass film application avoids the problem of unusable glass and film due to low application precision, thus saving on the cost of glass and film.

[0044] Furthermore, as an extension of step S502 above, calibration can be performed based on the differences between the glass and the film during the specific calibration process.

[0045] Specifically, step S502 above may include:

[0046] Step A1: Use the calibration block as a glass calibration.

[0047] In other words, the location of the calibration block is determined to be the location of the glass edge.

[0048] Step A2: Use the edge of the target membrane at the current position as the membrane calibration.

[0049] The target film here is the film that will be applied to the glass later. In practical applications, the target film can be ASF (Anti-Staining Film), a stained film, etc. The specific type of target film is not limited here.

[0050] Before the target film is bonded to the glass, it will move to the vicinity of the glass to wait for the bonding process to begin. At this time, the position of the target film is the current position, and the edge of the target film can be used as the film marker.

[0051] Step A3: Calculate the difference between the film calibration and the glass calibration so that the edge of the target film can be bonded to the glass based on the difference.

[0052] The membrane calibration indicates the current edge position of the target membrane, and the glass calibration indicates the current edge position of the glass. The difference between the membrane calibration and the glass calibration is the position difference between the current edge of the target membrane and the edge of the glass. The target membrane moves towards the glass according to this position difference, so that the edge of the target membrane can be precisely attached to the edge of the glass, thereby achieving precise bonding between the target membrane and the glass.

[0053] Generally speaking, the difference between membrane calibration and glass calibration can be ignored, and only the positional difference between the target membrane and the glass on the horizontal plane should be considered.

[0054] Figure 7 This is a schematic diagram of the calibration performed in the embodiments of this application. Figure 2 See Figure 7 As shown, calibration block 401 calibrates the edge of glass 10. The target film 50 is moved to the vicinity of glass 10, and its edge is also calibrated. The difference between the target film 50 and calibration block 401 is the difference in position between the edge of the target film 50 and the glass 10 on the horizontal plane. Moving the target film 50 based on this positional difference allows it to be positioned directly above the glass 10. As the target film 50 gradually falls, it can precisely adhere to the glass 10, starting from its edge.

[0055] As can be seen from the above, by calibrating the glass and the target film, and calculating the difference between the two calibrations, the target film is bonded to the glass based on this difference. This allows the target film to move precisely based on the actual difference between itself and the edge of the glass, further ensuring the precise bonding between the target film and the glass.

[0056] Furthermore, as a refinement of step A3 above, since both the target film and the glass edge have a certain length, calibrating from a single point on each side may result in significant calibration errors. Conversely, calibrating from more points would reduce calibration efficiency. To balance accuracy and efficiency, two points can be selected for calibration.

[0057] Accordingly, the calibration blocks include a first calibration block and a second calibration block, with the first calibration block corresponding to the first glass calibration and the second calibration block corresponding to the second glass calibration. Film calibration includes a first film calibration and a second film calibration.

[0058] Figure 8This is a schematic diagram of the calibration performed in the embodiments of this application. Figure 3 See Figure 8 As shown, the first calibration block 401 performs a first calibration on the edge of the glass 10, namely the first glass calibration 811, and the second calibration block 401 performs a second calibration on the edge of the glass 10, namely the second glass calibration 812. The edge of the target film 50 is also calibrated twice, namely the first film calibration 821 and the second film calibration 822.

[0059] Specifically, step A3 above may include:

[0060] Step A31: Calculate the difference between the first film calibration and the second film calibration, and the first glass calibration and the second glass calibration.

[0061] In other words, the difference between two points on the edge of the target film and two points on the edge of the glass calibrated by the two calibration blocks is calculated. The specific method for calculating this difference can be either to take the difference between one point on the film edge and one point on the glass edge, and the difference between another point on the film edge and another point on the glass edge, and then take the midpoint of these two differences. Alternatively, it can be to take the midpoint between two points on the film edge and the midpoint between two points on the glass edge, and then take the difference between these two midpoints. The specific calculation process for this difference is not limited here.

[0062] As can be seen from the above, performing two calibrations on the target film and the glass can reduce the error caused by a single calibration, making the calculation of the positional difference between the target film and the glass more accurate, thereby improving the accuracy of glass film application.

[0063] Furthermore, as a refinement of step A31 above, in the process of calculating the difference between the two calibrations of the target film and the two calibrations of the glass, the midpoint between the two calibrations of the target film and the glass can be used for calculation.

[0064] Specifically, step A31 above may include:

[0065] Step A311: Calculate the midpoint of the membrane calibration between the first membrane calibration and the second membrane calibration.

[0066] Step A312: Calculate the midpoint of the glass calibration between the first glass calibration and the second glass calibration.

[0067] Step A313: Calculate the difference between the membrane calibration midpoint and the glass calibration midpoint.

[0068] Figure 9 This is a schematic diagram of the calibration performed in the embodiments of this application. Figure 4 See Figure 9As shown, the calibration of glass 10 includes a first glass calibration 811 and a second glass calibration 812. The calibration of the target film includes a first film calibration 821 and a second film calibration 822. The midpoint 823 of the film calibration between the first film calibration 821 and the second film calibration 822, and the midpoint 813 of the glass calibration between the first glass calibration 811 and the second glass calibration 812 are determined, and then the difference between the film calibration midpoint 823 and the glass calibration midpoint 813 is calculated. Based on this difference, the target film 50 and the glass 10 can be precisely bonded.

[0069] As can be seen from the above, the glass can be calibrated by comparing the difference between the two midpoints of the target film edge and the two midpoints of the glass edge. This not only ensures more accurate calibration but also improves the calibration efficiency of the glass, thereby increasing the efficiency of glass film application.

[0070] Furthermore, as a refinement of the above step S501, the placement of the glass on the calibration tool can be fixed to facilitate subsequent calibration of the glass.

[0071] Specifically, the calibration tool is equipped with a positioning block, which is used to define the placement position of the glass in the calibration tool, and the edge of the positioning block is aligned with the calibration block.

[0072] Figure 10 This is a schematic diagram of the calibration tool in the embodiments of this application. Figure 2 See Figure 10 As shown, the calibration tool 40 includes a calibration block 401 and a positioning block 402. When the glass 10 needs to be placed in the calibration tool 40, it can be positioned according to the position of the positioning block 402. In practical applications, the thickness of the positioning block 402 is less than the thickness of the glass 10 to facilitate the placement and position confirmation of the glass 10.

[0073] In practical applications, the number of positioning blocks can be one or more. Preferably, three positioning blocks can be used, with two positioning blocks on the same straight line to restrict the lateral placement of the glass, and the third positioning block perpendicular to the aforementioned straight line to restrict the longitudinal placement of the glass. The specific number of positioning blocks in the calibration tool is not limited here, as long as it effectively restricts the placement of the glass within the calibration tool.

[0074] Step S501 above may include:

[0075] Step B: Place the glass on the calibration tool according to the positioning block, so that the edge of the glass is aligned with the calibration block.

[0076] In other words, by aligning one side of the glass with one side of the positioning block, the glass can be contained within the preset position of the calibration tool by the positioning block. The calibration block can then calibrate the glass using the positioning block.

[0077] Before the calibration block calibrates the glass based on the positioning block, the calibration block needs to be repeatedly moved according to the position of the positioning block so that the center point of the calibration block can be kept on the same horizontal line as the side of the positioning block away from the glass. Figure 10 As shown, the center of calibration block 401 is on the same horizontal line as the upper edge of positioning block 402.

[0078] As can be seen from the above, setting a positioning block in the calibration tool can restrict the placement of the glass in the calibration tool, making it easier for the calibration block to perform calibration. The calibration block does not need to be moved during each film application process. Finding the calibration block can lock the position of the edge of the glass to be filmed, quickly achieving glass calibration and improving film application efficiency.

[0079] Furthermore, as an extension of step S501 above, the calibration block on the calibration tool can be made replaceable so that when a calibration block wears out after long-term use, a new calibration block can be directly replaced.

[0080] Specifically, the calibration tool is equipped with a calibration positioner, which is used to place the calibration block.

[0081] Figure 11 This is a schematic diagram of the calibration tool in the embodiments of this application. Figure 3 See Figure 11 As shown, the calibration tool 40 includes a calibration point 403. When calibration is required, the calibration block 402 is placed on the calibration point 403 to perform the calibration. In practical applications, the center of the calibration point 403 is located on the extension line of the glass edge, which reduces alignment offset and improves alignment accuracy. Furthermore, the calibration point 403 must be parallel to the bottom surface of the calibration tool 40 to ensure a clearer visual image, more accurate calibration, and thus improved bonding stability.

[0082] See also Figure 12 As shown, in practical applications, the specific shape and texture of the calibration block 402 can be a square block with a cross-shaped pattern printed on its surface. The texture on the calibration block 402 needs to be clear and form a distinct contrast with the base plate. Furthermore, the calibration block 402 can be designed as a 20cm × 20cm square groove for easy adhesion to the calibration plate. The specific shape, texture, and size of the calibration block are not limited here.

[0083] Step S501 above may include:

[0084] Step C: Place the calibration block on the calibration position.

[0085] When calibration is required, the calibration block can be removed and placed in the calibration tool according to its calibrated position. When calibration is no longer needed, the calibration block can be removed from the tool and placed back in for subsequent marking. If the calibration block has unclear markings or other issues, a new calibration block can be used instead.

[0086] As can be seen from the above, by setting a calibration position in the calibration tool and separating the calibration block from the calibration tool, the calibration block can be placed according to the calibration position when the calibration tool is needed. This allows for flexible replacement of the calibration block, ensuring that the calibration tool can achieve accurate calibration in a long-term and stable manner, and reducing the maintenance cost of calibration.

[0087] Furthermore, as an extension of the above step S501, before calibrating and bonding the target film to the glass, the distance difference between the edge of the target film and the edge of the glass needs to be reduced to a certain range in order to make the calibration more accurate.

[0088] Specifically, prior to step S501 above, the method may further include:

[0089] Step D1: Determine whether the dimensional tolerance of the bonding between the target film and the glass is less than the first preset tolerance. If not, proceed to step D2; if yes, proceed to step S501.

[0090] When bonding the target film to glass, firstly, the glass is placed on a calibration tool. Then, the target film is removed and mounted on the calibration tool. Next, the edge of the target film is brought as close as possible to the edge of the glass. Then, the glass and the target film are calibrated. Finally, based on the calibration results, the target film is moved to bond it to the glass. Step D1 involves comparing the degree of closeness (bonding dimensional tolerance) with a first preset tolerance after the edge of the target film is close to the edge of the glass. This first preset tolerance can be the maximum acceptable distance between the film edge and the glass edge during calibration. In practical applications, the first preset tolerance can be 1.5mm, but it can also be other specific values; no specific limitation is made here.

[0091] Step D2: Adjust the calibration tool so that the dimensional tolerance of the bonding between the target film and the glass is less than the first preset tolerance.

[0092] If the dimensional tolerance of the bonding between the target film and the glass is greater than or equal to the first preset tolerance, it means that the distance between the edge of the target film and the edge of the glass is large, which is not conducive to accurate calibration. Therefore, it is necessary to adjust the position of the target film in the calibration tool so that the distance between the edge of the target film and the edge of the glass is less than the first preset tolerance.

[0093] Step S501: Align the edge of the glass to be coated with the calibration block and place it on the calibration tool.

[0094] If the dimensional tolerance of the target film and the glass is less than the first preset tolerance, it means that the distance between the edge of the target film and the edge of the glass is already close enough to be accurately calibrated. Therefore, the target film and the glass can be calibrated further to accurately bond the target film to the glass.

[0095] As can be seen from the above, calibration and bonding should only continue when the dimensional tolerance between the target film and the glass is less than a certain value. This can reduce calibration errors and improve the accuracy of the film-glass bonding.

[0096] Furthermore, as an extension of step S502 above, after the target film and glass are calibrated and then bonded, there will still be deviations in the bonding between the target film and glass. To improve the accuracy of subsequent film-glass bonding, these deviations can be compensated for in subsequent bonding processes.

[0097] Specifically, after step S502 above, the method may include:

[0098] Step E1: Obtain the actual bonding tolerance after the target film is bonded to the glass.

[0099] In other words, after the target film is bonded to the glass, the actual distance between the edge of the target film and the edge of the glass is measured, which is the actual bonding tolerance.

[0100] Step E2: Determine whether the actual fit tolerance is greater than the second preset tolerance. If yes, proceed to step E3; otherwise, proceed to step E4.

[0101] The second preset tolerance here can be the maximum acceptable error for the film application accuracy, such as 0.5mm. The specific value of the second preset tolerance is not limited here.

[0102] Step E3: Adjust the calibration tool according to the actual bonding tolerance so that the actual bonding tolerance of the new film and the new glass after bonding is less than the actual bonding tolerance of the target film and the glass after bonding.

[0103] When the actual bonding tolerance between the target film and the glass exceeds the second preset tolerance, it indicates that the bonding between the target film and the glass is not precise enough, possibly due to inaccurate calibration. Therefore, the calibration tool needs to be adjusted according to the actual bonding tolerance to ensure that the actual bonding tolerance between the new film and the new glass is less than the actual bonding tolerance between the target film and the glass. When the edge of the target film extends beyond the edge of the glass, the calibration tool should be moved less during subsequent bonding of the new film, or the calibration between the new film and the new glass should be reduced. When the edge of the target film is on the glass, the calibration tool should be moved more during subsequent bonding of the new film, or the calibration between the new film and the new glass should be increased.

[0104] By applying the film multiple times in this way, the actual adhesion tolerance between the film and the glass can gradually approach the second preset tolerance, and then become smaller than the second preset tolerance, and may even gradually approach zero tolerance.

[0105] Step E4: Use a calibration tool to bond the new mold to the new glass.

[0106] When the actual bonding tolerance between the target film and the glass is less than or equal to the second preset tolerance, it indicates that the bonding accuracy between the target film and the glass has reached the standard and the calibration is relatively accurate. Therefore, the new mold and the new glass can be bonded directly using calibration tools.

[0107] As can be seen from the above, by adjusting the adhesion tolerance between the film and the glass after the previous film application, the precision of the film application process can be gradually improved, resulting in increasingly accurate film application.

[0108] Finally, the calibration method provided in the embodiments of this application will be described again with a complete example.

[0109] Figure 12 This is a schematic diagram of the calibration tool in the embodiments of this application. Figure 4 See Figure 12 As shown, the calibration tool 40 includes a calibration block 401, a positioning block 402, and a positioning block 403.

[0110] Before formal calibration, some precise work needs to be done, namely, preparing the calibration tool. Specifically, the exact positions of the calibration points, calibration blocks, and positioning blocks need to be designed within the calibration tool. The center positions of the two calibration points should be on the extension line of the glass edge and parallel to the bottom surface of the calibration tool. The rear of the three positioning blocks needs to be less than the thickness of the glass. The calibration blocks need to be made into square grooves with high clarity and high contrast (i.e., high contrast between the cross mark and the background area), measuring 20mm × 20mm.

[0111] Next, we can begin the calibration process.

[0112] Figure 13 This is a schematic diagram of the calibration performed in the embodiments of this application. Figure 5 See Figure 13 As shown, first, the prepared calibration tool 40 is fixed on the machine base. Then, calibration blocks 401 are attached to the calibration positions 403 of the calibration tool 40. Next, using the positioning block 402 as a positioning reference, the glass 10 is placed on the calibration tool 40. Next, using the glass 10 as a reference, the placement position of the target film 50 is determined through repeated blind application, and positioning marks are made. Then, the target film 50 is placed according to the positioning marks. Next, the machine base is controlled to move the glass 10 into the field of view of the camera 302. Next, the characteristic edges of the target film 50 are calibrated, namely a1 and a2. Then, the two calibration blocks 401 on the calibration tool 40 are used as objects for calibration, namely b1 and b2. Next, the machine vision system is operated to take the midpoint a of a1 and a2, and the midpoint b of b1 and b2, thereby completing the calibration of the target film 50 and the glass 10. Next, after the offset is calculated by the algorithm in the machine's vision system, the UVW platform aligns a and b based on this offset. Then, the bonding mechanism begins bonding the target film 50 to the glass 10. Finally, based on the actual bonding effect between the target film 50 and the glass 10, compensation is applied to subsequent bonding processes, gradually adjusting the bonding error between the film and the glass to within the standard tolerance range.

[0113] Based on the same inventive concept, as an implementation of the above method, this application also provides a calibration device. This calibration device is applied to a calibration tool, which includes a calibration block used for calibrating the edge of glass and is non-transparent. Figure 14 This is a schematic diagram of the calibration device in an embodiment of this application. See also: Figure 14 As shown, the device may include:

[0114] The placement module 1401 is used to align the edge of the glass to be coated with the calibration block and place it on the calibration tool;

[0115] The calibration module 1402 is used to calibrate the calibration block as the edge of the glass so that the edge of the target film can be bonded to the glass according to the calibration.

[0116] Furthermore, the calibration module is specifically used to use the calibration block as glass calibration; to use the edge of the target film at the current position as film calibration; and to calculate the difference between the film calibration and the glass calibration, so that the edge of the target film can be bonded to the glass based on the difference.

[0117] Furthermore, the calibration block includes a first calibration block and a second calibration block, the first calibration block corresponding to the first glass calibration, and the second calibration block corresponding to the second glass calibration. The film calibration includes a first film calibration and a second film calibration.

[0118] The calibration module is specifically used to calculate the differences between the first film calibration and the second film calibration and the first glass calibration and the second glass calibration.

[0119] Furthermore, the calibration module is specifically used to calculate the midpoint of the membrane calibration between the first membrane calibration and the second membrane calibration; calculate the midpoint of the glass calibration between the first glass calibration and the second glass calibration; and calculate the difference between the midpoint of the membrane calibration and the midpoint of the glass calibration.

[0120] Furthermore, the calibration tool is provided with a positioning block, which is used to define the placement position of the glass in the calibration tool, and the edge of the positioning block is aligned with the calibration block.

[0121] The placement module is specifically used to place the glass on the calibration tool according to the positioning block, so that the edge of the glass is aligned with the calibration block.

[0122] Furthermore, the calibration tool is provided with a calibration point, which is used to place the calibration block.

[0123] The device further includes a preparation module for placing the calibration block on the calibration position.

[0124] Furthermore, the device further includes: a first adjustment module, used to determine whether the dimensional tolerance of the bonding between the target film and the glass is less than a first preset tolerance; if not, the calibration tool is adjusted so that the calibration tool controls the dimensional tolerance of the bonding between the target film and the glass to be less than the first preset tolerance; if yes, the device proceeds to the placement module.

[0125] Furthermore, the device further includes: a second adjustment module, used to obtain the actual bonding tolerance after the target film and the glass are bonded; determine whether the actual bonding tolerance is greater than a second preset tolerance; if so, adjust the calibration tool according to the actual bonding tolerance so that the calibration tool controls the actual bonding tolerance after the new film and the new glass are bonded to be less than the actual bonding tolerance after the target film and the glass are bonded; if not, bond the new mold and the new glass using the calibration tool.

[0126] It should be noted that the description of the above device embodiments is similar to the description of the above method embodiments, and has similar beneficial effects. For technical details not disclosed in the device embodiments of this application, please refer to the description of the method embodiments of this application for understanding.

[0127] Based on the same inventive concept, as an implementation of the above method, this application also provides a calibration tool. See still... Figure 12 As shown, the calibration tool 40 is provided with a calibration block 401, which is used to calibrate the edge of the glass and is not transparent. When the calibration tool 40 is running, it performs the calibration method in the aforementioned embodiment.

[0128] Furthermore, the calibration block includes a first calibration block and a second calibration block, the first calibration block corresponds to the first glass calibration, the second calibration block corresponds to the second glass calibration, and the film calibration includes the first film calibration and the second film calibration.

[0129] Furthermore, the calibration tool is provided with a positioning block, which is used to define the placement position of the glass in the calibration tool, and the edge of the positioning block is aligned with the calibration block.

[0130] Furthermore, the calibration tool is provided with a calibration positioner, which is used to place the calibration block.

[0131] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A calibration method, characterized in that, The method is applied to a calibration tool, which includes a calibration block for calibrating the edge of a non-transparent glass. The method includes: Align the edge of the glass to be coated with the calibration block and place it on the calibration tool; The calibration block is used as a calibration for the edge of the glass so that the edge of the target film can be aligned with the glass according to the calibration. The step of using the calibration block as a calibration point for the edge of the glass, so that the edge of the target film can be aligned with the glass according to the calibration, includes: The calibration block is used as a glass calibration block; The edge of the target membrane at the current position is used as the membrane calibration. The difference between the film calibration and the glass calibration is calculated so that the edge of the target film can be bonded to the glass based on the difference; The calibration block includes a first calibration block and a second calibration block, the first calibration block corresponding to a first glass calibration, and the second calibration block corresponding to a second glass calibration. The film calibration includes a first film calibration and a second film calibration. Calculating the difference between the film calibration and the glass calibration includes: Calculate the differences between the first membrane calibration and the second membrane calibration, and the first glass calibration and the second glass calibration; The calculation of the differences between the first film calibration and the second film calibration and the first glass calibration and the second glass calibration includes: Calculate the midpoint between the first membrane calibration and the second membrane calibration; Calculate the midpoint between the first glass calibration and the second glass calibration; Calculate the difference between the midpoint of the membrane calibration and the midpoint of the glass calibration.

2. The method according to claim 1, characterized in that, The calibration tool is provided with a positioning block, which is used to define the placement position of the glass in the calibration tool. The edge of the positioning block is aligned with the calibration block. The step of aligning the edge of the glass to be coated with the calibration block with the calibration block and placing it on the calibration tool includes: The glass is placed on the calibration tool according to the positioning block, so that the edge of the glass is aligned with the calibration block.

3. The method according to claim 1, characterized in that, The calibration tool is provided with a calibration point for placing the calibration block. Before aligning the edge of the glass to be coated with the calibration block with the calibration block and placing it on the calibration tool, the method further includes: Place the calibration block on the calibration position.

4. The method according to claim 1, characterized in that, Before aligning the edge of the glass to be coated with the calibration block and placing it on the calibration tool, the method further includes: Determine whether the dimensional tolerance of the bonding between the target film and the glass is less than a first preset tolerance; If not, adjust the calibration tool so that the calibration tool controls the bonding dimensional tolerance between the target film and the glass to be less than the first preset tolerance; If so, then perform the step of aligning the edge of the glass to be coated with the calibration block and placing it on the calibration tool.

5. The method according to claim 1, characterized in that, After using the calibration block as a calibration point for the edge of the glass, so that the edge of the target film can adhere to the glass according to the calibration, the method further includes: Obtain the actual bonding tolerance after the target film is bonded to the glass; Determine whether the actual fit tolerance is greater than the second preset tolerance; If so, the calibration tool is adjusted according to the actual bonding tolerance so that the calibration tool controls the actual bonding tolerance of the new film and the new glass to be less than the actual bonding tolerance of the target film and the glass. If not, the new mold and the new glass are bonded together using the calibration tool.

6. A calibration device, characterized in that, The device is applied to a calibration tool, the calibration tool having a calibration block, the calibration block being used to calibrate the edge of glass and being non-transparent, the device comprising: The placement module is used to align the edge of the glass to be coated with the calibration block and place it on the calibration tool; A calibration module is used to calibrate the calibration block as the edge of the glass, so that the edge of the target film can be bonded to the glass according to the calibration. Specifically, the calibration module is used to use the calibration block as glass calibration; to use the edge of the target film at the current position as film calibration; and to calculate the difference between the film calibration and the glass calibration so that the edge of the target film can be bonded to the glass based on the difference. The calibration block includes a first calibration block and a second calibration block. The first calibration block corresponds to the calibration of the first glass, and the second calibration block corresponds to the calibration of the second glass. The film calibration includes the calibration of the first film and the calibration of the second film. The calibration module is specifically used to calculate the differences between the first membrane calibration and the second membrane calibration, and the first glass calibration and the second glass calibration; The calibration module is specifically used to calculate the midpoint of the membrane calibration between the first membrane calibration and the second membrane calibration; calculate the midpoint of the glass calibration between the first glass calibration and the second glass calibration; and calculate the difference between the midpoint of the membrane calibration and the midpoint of the glass calibration.

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