Processing method for curved glass measuring jig

Abstract

The application provides a processing method for a curved glass measuring jig, comprising the following steps: according to processing parameters of the curved glass measuring jig to be processed, performing numerical control programming on a numerical control machine tool to obtain a processing program; according to the processing program, controlling operation parameters of the numerical control machine tool, forming an outer peripheral frame and a curved glass placement curve of the curved glass measuring tool on a front surface of a blank by rough machining, simultaneously conveying cooling liquid to an inner side of the outer peripheral frame, and then processing the measuring hole on the blank; controlling the operation parameters of the numerical control machine tool, forming a positioning reference of the curved glass on the front surface of the blank by machining, and performing finish machining on the curved glass placement curve; and milling off the outer peripheral frame by using the numerical control machine tool to obtain the curved glass measuring jig. The method can solve the problems that the material is easily fused and wrapped around the tool due to heat, the material is deformed during processing, and the precision of the curved glass measuring jig cannot be guaranteed.

Description

Technical Field

[0001] This application relates to the field of measuring tool processing technology, and in particular to a processing method for a measuring fixture for curved glass. Background Technology

[0002] As the application of automotive displays develops, the demand for curved display products has become increasingly common, with increasingly diverse requirements for product design forms due to their aesthetic appeal and uniqueness.

[0003] In the production of curved glass, specialized fixtures are required to hold the curved glass during measurement to accurately measure its dimensions, curvature, and other characteristics. Therefore, the machining precision of the fixture greatly affects the accuracy of the measurement.

[0004] Currently, the jig is manufactured using a frameless processing method, which is cumbersome and prone to problems such as material melting and entanglement with the tool, material deformation, and inability to guarantee accuracy. These issues severely affect the processing effect and measurement accuracy of curved glass measuring jigs. Summary of the Invention

[0005] One of the technical problems this application aims to solve is that the existing processing methods for curved glass measuring fixtures are prone to problems such as material melting and entanglement during heating, material deformation during processing, and inability to guarantee the accuracy of the curved glass measuring fixture.

[0006] To address the aforementioned technical problems, embodiments of this application provide a processing method for a measuring fixture for curved glass, comprising:

[0007] Preprocessing steps: Based on the machining parameters of the measuring fixture for the curved glass to be processed, CNC programming is performed on the CNC machine tool to obtain the machining program;

[0008] Rough machining steps: According to the machining program, the operating parameters of the CNC machine tool are controlled. The outer frame and the curved glass placement surface of the curved glass measuring tool are formed on the front side of the blank. At the same time, coolant is delivered to the inner side of the outer frame. Then, measuring holes are machined on the blank. The outer frame surrounds the outer perimeter of the curved glass measuring tool.

[0009] Finishing steps: Control the operating parameters of the CNC machine tool to form a positioning reference for the curved glass on the front side of the blank, and then finish the curved surface on which the curved glass is placed; and

[0010] Border removal step: Use a CNC machine tool to mill away the outer border to obtain a curved glass measuring fixture.

[0011] In some embodiments, during the preprocessing step, when the processing program is programmed, a peripheral border of predetermined thickness is reserved on the outer contour of the curved glass fixture.

[0012] In some embodiments, the thickness of the outer frame is 2mm to 5mm.

[0013] In some embodiments, the minimum distance from the upper surface of the outer frame to the curved surface where the curved glass is placed is not less than 2 mm.

[0014] In some embodiments, a bottom surface machining step is included after the roughing step and before the finishing step: the bottom surface of the blank is milled flat using a CNC machine tool.

[0015] In some embodiments, the bottom surface processing step includes:

[0016] Flip the blank over, using the outer frame as support, so that the bottom surface of the blank faces the CNC machine tool's cutting tool;

[0017] According to the processing requirements, the bottom surface of the blank is milled flat.

[0018] In some embodiments, the step of forming a positioning reference for curved glass on the front side of the blank includes:

[0019] Flip the billet so that the front side is facing up and fix the billet in place;

[0020] According to the processing requirements, a curved glass mounting surface and a measurement coordinate reference plane are formed on the blank.

[0021] In some embodiments, the operating parameters include the tool's rotational speed, feed rate, depth of cut, and machining step distance.

[0022] In some embodiments, during the roughing step, coolant is delivered toward the inside of the outer frame using a delivery pipe or nozzle.

[0023] Through the above technical solution, the processing method for curved glass measuring fixtures provided by the present invention allows for the accumulation of a large amount of coolant within a groove structure inside the outer frame of the curved glass measuring fixture by pre-reserving an outer frame. The coolant accumulated in the groove neutralizes the heat generated during processing, thereby preventing deformation of the blank and avoiding material melting and tool entanglement. This not only improves the processing efficiency of the curved glass measuring fixture but also increases the yield and accuracy of the finished product, ensuring the processing and measurement precision of the curved glass measuring fixture. Attached Figure Description

[0024] 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, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a flowchart of a processing method for a curved glass measuring fixture disclosed in an embodiment of this application;

[0026] Figure 2 This is a schematic diagram of the structure of the curved glass measuring fixture disclosed in the embodiments of this application;

[0027] Figure 3 This is a schematic diagram of the curved glass measuring fixture disclosed in the embodiments of this application when it has an outer frame;

[0028] Figure 4 yes Figure 3 Top view;

[0029] Figure 5 This is a schematic diagram of the blank and cutting tool structure when processing the bottom surface of the curved glass measuring fixture disclosed in the embodiments of this application;

[0030] Figure 6 This is a schematic diagram of the structure of the blank and the cutting tool when processing the front side of the curved glass measuring fixture disclosed in the embodiments of this application.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Curved glass placement surface; 2. Outer frame; 3. Measurement coordinate reference plane; 4. Measurement hole; 5. Glass mounting surface; 6. Cutting tool. Detailed Implementation

[0033] The embodiments of this application will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to illustrate the principles of this application by way of example, but should not be used to limit the scope of this application. This application can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0034] These embodiments are provided to make the application thorough and complete, and to fully express the scope of the application to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​illustrated in these embodiments should be interpreted as merely exemplary and not as limiting.

[0035] It should be noted that, in the description of this application, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0036] Furthermore, the terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well.

[0037] It should also be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device.

[0038] All terms used in this application have the same meaning as understood by one of ordinary skill in the art to which this application pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0039] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0040] According to embodiments of this application, a processing method for a curved glass measuring fixture is provided. This processing method is particularly suitable for processing curved measuring fixtures, and can improve the processing efficiency of curved glass measuring fixtures, and alleviate the problems of material melting and entanglement with the cutting tool and easy material deformation during processing.

[0041] See Figures 1 to 6As shown, the curved glass measuring fixture in this embodiment includes a curved glass placement surface 1, a measuring coordinate reference plane 3, a measuring hole 4, and a glass positioning surface 5. In actual manufacturing, this curved glass measuring fixture can be made of PC, PEEK, or other metal materials.

[0042] Specifically, the processing method for the curved glass measuring fixture in this embodiment includes a pretreatment step, a roughing step, a bottom surface processing step, a finishing step, and a frame removal step. The pretreatment step, roughing step, bottom surface processing step, finishing step, and frame removal step will be described in detail below.

[0043] Step S1: Pre-processing step: Based on the machining parameters of the measuring fixture for the curved glass to be processed, CNC programming is performed on the CNC machine tool to obtain the machining program.

[0044] In this step, the parameters of the curved glass fixture to be processed are first determined based on the drawings, and then the blank and cutting tools (6, etc.) to be used to process the curved glass fixture are determined. Afterwards, CNC programming is performed on the CNC machine tool to obtain the processing program for the curved glass fixture.

[0045] It should be noted that since the machining program settings are related to the model of the CNC machine tool, the material type of the blank, the parameters of the curved glass fixture to be machined, and the model of the cutting tool 6, this application does not impose specific limitations on the machining program. As long as the machining program can be obtained by programming according to the drawing of the curved glass fixture to be machined, it is within the protection scope of this application.

[0046] During the programming process to obtain the above-mentioned machining program, a predetermined thickness of outer frame 2 needs to be reserved on the outer contour of the curved glass fixture. In this way, when the machining program is executed, the outer frame 2 can be machined to form the outer perimeter of the curved glass fixture, and the outer frame 2 can form a groove structure on the blank that can accumulate coolant.

[0047] Step S2: Rough machining step: According to the machining program, the operating parameters of the CNC machine tool are controlled. The outer frame 2 and the curved glass placement surface 1 of the curved glass measuring tool are formed on the front side of the blank. At the same time, coolant is delivered to the inner side of the outer frame 2. Then, the measuring hole 4 is machined on the blank. The outer frame 2 surrounds the outer periphery of the curved glass measuring tool.

[0048] In this process, according to the processing procedure, the curved glass placement surface 1 and the outer frame 2 for placing the curved glass can be roughly machined on the blank first, and then the measuring hole 4 can be machined on the blank. After the curved glass placement surface 1 and the outer frame 2 are roughly machined, the outer frame 2 can be formed into a groove structure on the blank. This groove structure can accumulate coolant. Thus, when the curved glass placement surface 1 and the measuring hole 4 are formed, the coolant accumulated in the groove can neutralize the heat generated during the processing, thereby avoiding deformation of the blank and preventing the material from melting and causing tool entanglement. This not only improves the processing efficiency of the curved glass measuring fixture, but also improves the yield and processing accuracy of the curved glass measuring fixture, ensuring the processing and measurement accuracy of the curved glass measuring fixture.

[0049] In this embodiment, the minimum distance from the upper surface of the outer frame 2 to the curved glass placement surface 1 is not less than 2mm, which facilitates the formation of a groove on the blank that can accumulate coolant.

[0050] In the roughing process, coolant can be delivered to the inside of the outer frame 2 via a delivery pipe or via a nozzle. Any other variations of the concept of this application are within the scope of protection of this application.

[0051] In this step, the operating parameters of the CNC machine tool include the tool's rotational speed, feed rate, depth of cut, and machining step distance. Since different types of blanks and tools have different machining parameters, this application does not limit the tool's rotational speed, feed rate, depth of cut, and machining step distance; the specific values ​​can be set by those skilled in the art based on practical experience and experiments.

[0052] Step S3: Bottom surface machining step: Use a CNC machine tool to mill the bottom surface of the blank flat.

[0053] In this step, the blank is first flipped over and supported by the outer frame 2 so that the bottom surface of the blank faces the CNC machine tool; then, the bottom surface of the blank is milled flat according to the processing requirements.

[0054] To facilitate support of the blank, the thickness of the outer frame 2 is set to 2mm to 5mm in this embodiment, for example, 2mm, 3mm, 4mm, or 5mm. When the thickness of the outer frame 2 is less than 2mm, it is too thin to support the blank for milling its bottom surface. When the thickness of the outer frame 2 is greater than 5mm, the machining path of the entire blank is relatively large, resulting in higher energy consumption of the CNC milling machine.

[0055] This step removes the deformation caused by the previous milling process by flipping the milling surface to obtain a flat bottom surface of the fixture, which can ensure the accuracy of the fixture.

[0056] Step S4: Finishing step: Control the operating parameters of the CNC machine tool, process the front side of the blank to form the positioning reference of the curved glass, and perform finishing on the curved surface 1 where the curved glass is placed.

[0057] In this step, the positioning reference for forming the curved glass on the front side of the blank includes: flipping the blank so that the front side faces upward and fixing the blank; and machining the curved glass positioning surface 5 and the measurement coordinate reference surface 3 on the blank according to the processing requirements. In the actual machining room, the machining step distance of the CNC machine tool should be small and the speed should be appropriate to ensure the accuracy of the reference position and the contour of the curved surface where the glass is placed. In some embodiments, the machining step distance of the CNC machine tool can be set to 0.1mm to 0.2mm, and the machining speed of the CNC machine tool can be set to 7000 rpm to 10000 rpm.

[0058] Step S5: Removing the outer frame: Using a CNC machine tool, the outer frame 2 is milled away to obtain the curved glass measuring fixture. In this step, removing the outer frame 2 accurately yields the external dimensions of the curved glass measuring fixture that match the dimensions on the drawing.

[0059] As can be seen from the above steps, this invention solves the problems of material melting and entanglement due to heat and insufficient cooling during processing by pre-reserving an outer frame 2 on the outside of the curved glass measuring fixture, allowing a large amount of coolant to accumulate within the outer frame 2. This improves the processing efficiency of the fixture and effectively ensures its measurement accuracy. Since the structure of the curved glass measuring fixture changes depending on the glass structure, the outer frame 2, as a fixed component, greatly reduces the influence of the glass structure on the processing. Because the outer frame 2 forms a closed area, the coolant accumulates and does not disperse, ensuring sufficient cooling during roughing, drilling, benchmarking, and finishing processes, thus preventing tool entanglement and significantly reducing fixture deformation. The supporting function of the outer frame 2 ensures that the flipping and fixing process is unaffected by the curved glass measuring fixture structure, simplifying the operation.

[0060] The processing method for curved glass measuring fixtures provided by this invention achieves high efficiency, high precision, and standardized operation procedures. This simplifies the process, making the operation straightforward and requiring only familiarity with the procedures by technicians. It is widely applicable to the processing of various curved surface measuring fixtures. During processing, an outer frame 2 is reserved on the outside of the fixture. After subsequent processing, the outer frame 2 is removed to match the dimensions in the drawing. The outer portion, defined by the reserved outer frame 2, allows coolant to accumulate during processing. As coolant is continuously injected and overflows, it achieves better cooling, significantly reducing tool wrapping and processing deformation. It also serves as a support for flipping operations, simplifying the process.

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

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

Claims

1. A method for processing a measuring fixture for curved glass, characterized in that, include: Preprocessing steps: Based on the machining parameters of the measuring fixture for the curved glass to be processed, CNC programming is performed on the CNC machine tool to obtain the machining program; Rough machining steps: According to the machining program, the operating parameters of the CNC machine tool are controlled, and the outer frame (2) and the curved glass placement surface (1) of the curved glass measuring tool are formed on the front side of the blank. At the same time, coolant is delivered to the inner side of the outer frame (2), and then a measuring hole (4) is formed on the blank. The outer frame (2) surrounds the outer periphery of the curved glass measuring tool. Finishing steps: Controlling the operating parameters of the CNC machine tool, machining a positioning reference for the curved glass on the front side of the blank, and finishing the curved glass placement surface (1); and The outer frame (2) is removed using a CNC machine tool to obtain the curved glass measuring fixture; The thickness of the outer frame (2) is 2mm to 5mm; The minimum distance from the upper surface of the outer frame (2) to the curved glass placement surface (1) is not less than 2mm.

2. The processing method for a measuring fixture for curved glass according to claim 1, characterized in that, In the preprocessing step, when the processing program is programmed, a predetermined thickness of the outer frame (2) is reserved on the outer contour of the curved glass fixture.

3. The processing method for a measuring fixture for curved glass according to claim 1, characterized in that, After the roughing step and before the finishing step, a bottom surface machining step is also included: the bottom surface of the blank is milled flat using the CNC machine tool.

4. The processing method for a measuring fixture for curved glass according to claim 3, characterized in that, The bottom surface processing steps include: The blank is flipped over and supported by the outer frame (2) so that the bottom surface of the blank faces the cutting tool (6) of the CNC machine tool. According to the processing requirements, the bottom surface of the blank is milled flat.

5. The processing method for a measuring fixture for curved glass according to claim 1, characterized in that, The step of forming a positioning reference for curved glass by machining the front side of the blank includes: Flip the billet so that its front side is facing up and fix the billet in place; According to the processing requirements, a curved glass support surface (5) and a measurement coordinate reference plane (3) are formed on the blank.

6. The processing method for a measuring fixture for curved glass according to any one of claims 1 to 5, characterized in that, The operating parameters include the tool's rotational speed, feed rate, depth of cut, and machining step distance.

7. The processing method for a measuring fixture for curved glass according to any one of claims 1 to 5, characterized in that, In the roughing step, coolant is delivered toward the inside of the outer frame (2) using a delivery pipe or nozzle.

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