Special-shaped glass positioning device

Abstract

The utility model discloses a special-shaped glass positioning device which is characterized in that glass comprises a positioning surface, the outer edge of the positioning surface is separated from the edge of the glass so as to reserve a circle of avoiding surface, and the special-shaped glass positioning device comprises a main body positioning jig (1) and a positioning auxiliary block (2), the top of the main body positioning jig (1) comprises a first profiling curved surface which is matched with the positioning surface in a profiling manner and avoids the avoiding surface, the top of the positioning auxiliary block (2) comprises a second profiling curved surface which is matched with the avoiding surface in a profiling manner, and the outer edge of the second profiling curved surface is consistent with the edge contour of the glass. The inner edge of the second profiling curved surface is matched with the outer edge of the first profiling curved surface in outline; according to the utility model, the glass can be accurately positioned on the main body positioning jig (1), so that the positioning accuracy is improved, the problem that the positioning cannot be accurate in the existing scheme is solved, defective products caused by the positioning problem in production and processing are greatly reduced, and the production yield is improved.

Description

Technical Field

[0001] The utility model relates to the field of special-shaped glass processing, in particular to a special-shaped glass positioning device. Background Art

[0002] In the production process of special-shaped curved glass covers, many processing procedures require the glass to be fixed before processing. For example, Figure 1 , the inner surface of the special-shaped curved glass 3 is a concave arc surface. Currently, most positioning fixtures 1' for special-shaped curved glass 3 use the arc surface of the glass 3 itself to cooperate with the positioning fixture 1' to position the position accuracy. The positioning fixture 1' can only be in profile fit with the central area of the inner surface of the glass 3, and a circular area at the edge needs to be reserved for processing, observation, or testing, etc. In the current solution, due to the lack of a positioning reference, professional employees need to be trained to operate. The production personnel can only judge the position accuracy between the glass cover and the positioning fixture by feeling. Since the special-shaped curved glass 3 has a large curved arc and an irregular outer shape, there is no reference surface as a positioning reference during positioning, so it is very difficult to position it accurately. The repeat positioning position tolerance reaches 0.5 - 1 mm, resulting in a large number of defective products during the production and processing process, greatly affecting the production yield and increasing the production cost. Moreover, when the special-shaped curved glass 3 is positioned in cooperation with the positioning fixture 1', it needs to be pushed back and forth several times to determine the position accuracy. Such an operation is very likely to scratch the glass 3, resulting in poor appearance of the glass 3. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a special-shaped glass positioning device in view of the above-mentioned defects of high labor cost and low product yield caused by the lack of a positioning reference in the prior art.

[0004] The technical solution adopted by the utility model to solve its technical problem is to construct a special-shaped glass positioning device. The glass includes a positioning surface, and the outer edge of the positioning surface surrounds the center of the glass and is spaced apart from the edge of the glass to reserve a circular avoidance surface. The device includes a main body positioning fixture for fixing with a machine table and a positioning auxiliary block for assisting in positioning and placing the glass on the main body positioning fixture.

[0005] The top of the main body positioning jig includes a first profiling curved surface that is in profiling fit with the positioning surface and avoids the avoidance surface. The top of the positioning auxiliary block includes a second profiling curved surface that is in profiling fit with the avoidance surface. The outer edge of the second profiling curved surface is consistent with the edge contour of the glass, and the inner edge of the second profiling curved surface matches the outer edge contour of the first profiling curved surface. The positioning auxiliary block is detachably assembled with the side of the main body positioning jig, and when the positioning auxiliary block is assembled to the side of the main body positioning jig, the inner edge of the second profiling curved surface is flush with the outer edge of the first profiling curved surface.

[0006] Further, in the special-shaped glass positioning device of the present invention, the number of the positioning auxiliary blocks is two, and the two positioning auxiliary blocks are symmetrically installed on both sides of the main body positioning jig.

[0007] Further, in the special-shaped glass positioning device of the present invention, the avoidance surface includes two archings located on both sides of the center of the glass, and the second profiling curved surfaces of the two positioning auxiliary blocks are respectively in profiling fit with the two archings of the avoidance surface.

[0008] Further, in the special-shaped glass positioning device of the present invention, a hollow window is provided at the center of the top of the main body positioning jig, and the first profiling curved surface is a curved surface surrounding the hollow window.

[0009] Further, in the special-shaped glass positioning device of the present invention, a groove is formed by recessing the side of the main body positioning jig, and a boss is formed by protruding the side of the positioning auxiliary block to cooperate with the groove. The positioning auxiliary block and the main body positioning jig are in positioning fit through the boss and the groove.

[0010] Further, in the special-shaped glass positioning device of the present invention, the boss is inserted into the groove and can slide along the groove, and the included angle between the sliding direction and the vertical direction is less than ninety degrees; when the boss slides to the highest position, the positioning auxiliary block and the main body positioning jig are fixed by a magnetic attraction method and the inner edge of the second profiling curved surface is flush with the outer edge of the first profiling curved surface.

[0011] Further, in the special-shaped glass positioning device of the present invention, a first magnetic attraction hole for installing a first magnetic attraction member is provided on the groove wall at the top of the groove, and a second magnetic attraction hole for installing a second magnetic attraction member is provided on the groove wall at the top of the boss. The positioning auxiliary block and the main body positioning jig are magnetically fixed through the first magnetic attraction member and the second magnetic attraction member.

[0012] Further, in the special-shaped glass positioning device of the present utility model, the main body positioning fixture and the positioning auxiliary block are made of non-metallic materials with a hardness lower than that of the glass.

[0013] Further, in the special-shaped glass positioning device of the present utility model, a vacuum connection hole for installing a vacuum suction pipe joint is opened at the bottom of the main body positioning fixture, and the vacuum connection hole is communicated with a vacuum airway that penetrates the main body positioning fixture and extends to the first profiling surface.

[0014] Further, in the special-shaped glass positioning device of the present utility model, a plurality of positioning pin holes are also opened at the bottom of the main body positioning fixture for cooperating with a plurality of positioning pins on the machine table to achieve positioning; a plurality of screw holes are also opened at the bottom of the main body positioning fixture for being fixed on the machine table by screws after being positioned and cooperating with the machine table.

[0015] The special-shaped glass positioning device of the present utility model has the following beneficial effects: The positioning device of the present utility model includes a main body positioning fixture and a positioning auxiliary block that can be detachably assembled therewith. Since the inner edge of the positioning auxiliary block is flush with the outer edge of the first profiling surface at the top of the main body positioning fixture and its outer edge is consistent with the edge contour of the avoidance surface when the positioning auxiliary block is assembled to the side of the main body positioning fixture, when placing the glass, the outer edge of the positioning auxiliary block can be used as a reference, and the edge of the glass can be aligned with the outer edge of the positioning auxiliary block as the target to place the glass. After positioning, the positioning auxiliary block can be disassembled. The operation is simple, and it can help accurately position the glass on the main body positioning fixture, improving the positioning accuracy, solving the problem that the existing solutions cannot accurately position, greatly reducing the defective products caused by positioning problems in production and processing, and improving the production yield. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only the embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to the provided drawings:

[0017] Figure 1 is a schematic diagram of the existing special-shaped glass positioning principle;

[0018] Figure 2 is a structural schematic diagram of the special-shaped glass positioning device of the present utility model;

[0019] Figure 3 is a structural schematic diagram of the main body positioning fixture;

[0020] Figure 4 is a structural schematic diagram of the positioning auxiliary block;

[0021] Figure 5 This is a schematic process diagram of the special-shaped glass positioning device of the present utility model for glass processing. Specific embodiments

[0022] For the convenience of understanding the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. Typical embodiments of the present utility model are shown in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present utility model more thorough and comprehensive. It should be understood that the embodiments of the present utility model and the specific features in the embodiments are detailed descriptions of the technical solutions of the present application, rather than limitations on the technical solutions of the present application. Without conflict, the embodiments of the present utility model and the technical features in the embodiments can be combined with each other.

[0023] Reference Figure 2 , the special-shaped glass positioning device of this embodiment includes a main body positioning jig 1 for fixing to the machine table and a positioning auxiliary block 2 for assisting in positioning and placing the special-shaped glass 3 on the main body positioning jig 1. The special-shaped glass 3 can be understood as 3D glass, and the glass 3 in this embodiment is the glass of a VR glasses.

[0024] Wherein, the glass is divided into upper and lower surfaces with the entire circumferential edge as the boundary. The lower surface is an arched surface with a middle arch, and the corresponding upper surface is also an arched surface with a middle arch. The arched surface of the lower surface is a concave surface, and the arched surface of the upper surface is a convex surface. Of course, in addition to the arched surface, it can also be other curved surfaces.

[0025] Wherein, the area near the center of the lower surface of the glass is defined as the positioning surface, and the outer edge of the positioning surface surrounds the center of the glass. The outer edge of the positioning surface is also spaced apart from the edge of the glass (the specific spacing size is designed according to requirements) to reserve a circle of avoidance surface. The reason for defining the positioning surface and the avoidance surface here is to explain the cooperation relationship between the main body positioning jig 1, the positioning auxiliary block 2 and the glass.

[0026] Reference Figure 3, the top of the main body positioning jig 1 includes a first profiling curved surface for profiling and mating with the positioning surface and avoiding the avoidance surface. The top of the positioning auxiliary block 2 includes a second profiling curved surface for profiling and mating with the avoidance surface. The outer edge of the second profiling curved surface is consistent with the edge contour of the glass, and the inner edge of the second profiling curved surface matches the outer edge contour of the first profiling curved surface. The positioning auxiliary block 2 is detachably assembled with the side of the main body positioning jig 1, and when the positioning auxiliary block 2 is assembled to the side of the main body positioning jig 1, the inner edge of the second profiling curved surface is flush with the outer edge of the first profiling curved surface. Since the outer edge of the second profiling curved surface is consistent with the edge contour of the glass, the outer edge of the second profiling curved surface can be used as the reference for glass positioning. Place the glass with the goal of aligning the edge of the glass with the outer edge of the positioning auxiliary block up and down. After positioning, remove the positioning auxiliary block. The operation is simple; moreover, it can help accurately position the glass on the main body positioning jig, improving the positioning accuracy, solving the problem that the existing solutions cannot accurately position, greatly reducing the defective products caused by positioning problems in production and processing, and improving the production yield.

[0027] Specifically, in this embodiment, the number of the positioning auxiliary blocks 2 is two, and the two positioning auxiliary blocks 2 are symmetrically installed on the left and right sides of the main body positioning jig 1. In this embodiment, the lower surface of the glass is an arched surface that arches at the middle position between the front and back. The avoidance surface includes two arches located on the left and right sides of the center of the glass, and the second profiling curved surfaces of the two positioning auxiliary blocks 2 are respectively profiled and mated with the two arches of the avoidance surface.

[0028] Theoretically, the first profiling curved surface can be a curved surface with only an outer edge, that is, the first profiling curved surface covers the center of the top of the main body positioning jig 1. However, in this case, the contact area between the main body positioning jig 1 and the glass is relatively large. In this embodiment, in order to minimize the contact area between the main body positioning jig 1 and the glass as much as possible, preferably, a hollow window 10 is provided at the center of the top of the main body positioning jig 1, and the first profiling curved surface is a curved surface surrounding the hollow window 10. That is, the first profiling curved surface does not need to be completely profiled and mated with the entire positioning surface, but only with a circular area near the outer edge of the positioning surface. In this way, the contact area between the main body positioning jig 1 and the glass can be minimized as much as possible to reduce the probability of scratching the glass.

[0029] Continue to refer to Figure 3 、 4, recesses 11 are formed on the left and right sides of the main body positioning jig 1. Specifically, each side includes two front and rear recesses 11. A boss 21 that cooperates with the recess 11 is formed on the side of the positioning auxiliary block 2. Similarly, the side of each positioning auxiliary block 2 includes two front and rear bosses 21. The positioning auxiliary block 2 and the main body positioning jig 1 are positioned and matched through the boss 21 and the recess 11. It can be understood that the number of bosses 21 on the side of each positioning auxiliary block 2 can be adjusted, and can also be one, three or more.

[0030] Among them, the boss 21 is inserted into the recess 11 and can slide along the recess 11, and the included angle between the sliding direction and the vertical direction is less than ninety degrees. For example, in this embodiment, the sliding direction is close to the vertical direction, that is, the included angle with the vertical direction is 0. Theoretically, as long as when the positioning auxiliary block 2 needs to be disassembled, ensuring that the positioning auxiliary block 2 slides downward can not affect the glass, so it is also possible to design the recess 11 to be inclined downward.

[0031] When the boss 21 slides to the highest position, the inner edge of the second profiling surface is flush with the outer edge of the first profiling surface. In order to position here and facilitate the subsequent disassembly of the positioning auxiliary block 2, when the boss 21 slides to the highest position, the positioning auxiliary block 2 and the main body positioning jig 1 are fixed by magnetic attraction.

[0032] Specifically, a first magnetic attraction hole 111 for installing a first magnetic attraction member is opened on the top wall of the top of the recess 11, and a second magnetic attraction hole 211 for installing a second magnetic attraction member is opened on the top wall of the top of the boss 21. When the boss 21 slides to the highest position, the first magnetic attraction hole 111 and the second magnetic attraction hole 211 are aligned up and down, and the positioning auxiliary block 2 and the main body positioning jig 1 are magnetically fixed through the first magnetic attraction member and the second magnetic attraction member. The first magnetic attraction member and the second magnetic attraction member only need to be able to attract each other by magnetic force. For example, they can both be magnets, or one can be a ferromagnetic metal and the other can be a magnet.

[0033] After positioning the glass on the main body positioning jig 1, it is preferably to fix the glass. For this purpose, preferably, a vacuum connection hole 12 for installing a vacuum suction pipe joint is opened at the bottom of the main body positioning jig 1. The vacuum connection hole 12 can specifically be a throat thread hole. The vacuum connection hole 12 is communicated with a vacuum airway that penetrates the main body positioning jig 1 and extends to the first profiling surface. In this way, a vacuum suction pipe joint connected to a vacuum device at the bottom can be used to evacuate the vacuum airway, thereby forming a negative pressure to suck the glass positioned on the first profiling surface.

[0034] More specifically, two positioning pin holes 13 are further formed at the bottom of the main body positioning jig 1 for cooperating with two positioning pins on the machine table to achieve positioning. Four screw holes 14 are further formed at the bottom of the main body positioning jig 1 for being fixed on the machine table through four screws after being positioned and cooperated with the machine table.

[0035] Further preferably, in this embodiment, the main body positioning jig 1 and the positioning auxiliary block 2 are made of non-metallic materials with a hardness lower than that of glass, which can effectively prevent the abnormal-shaped curved glass from being scratched when coming into positioning contact with the main body positioning jig 1.

[0036] Reference Figure 5 , the process of using the abnormal-shaped glass positioning device in this embodiment for glass processing is generally as follows:

[0037] (1) Fix the main body positioning jig 1 on the working table of the machine table through the positioning pin holes 13, lock it tightly with four screws, and connect the vacuum connection hole 12 with a vacuum suction pipe joint;

[0038] (2) Position the positioning auxiliary block 2 on the main body positioning jig 1 by using the two bosses 21 of the positioning auxiliary block 2 and the two grooves 11 of the main body positioning jig 1, and realize magnetic attraction fixation through the first magnetic attraction member and the second magnetic attraction member;

[0039] (3) Aiming at aligning the edge of the positioning auxiliary block 2 with the edge of the arched part of the glass, place the abnormal-shaped curved glass on the main body positioning jig 1 by using a glass suction pen;

[0040] (4) Turn on the vacuum switch. When the glass is adsorbed on the main body positioning jig 1, pull down the positioning auxiliary block 2;

[0041] (5) Start the machine to start processing or detecting the glass product;

[0042] (6) After the processing or detection is completed, remove the glass product with a glass suction pen.

[0043] In summary, the device of this embodiment uses the curved radian of the special-shaped curved glass for profiling and positioning. By designing a positioning auxiliary block 2 to determine the position of the curved glass on the main positioning fixture 1, the central position can be determined as long as the curved glass is gently leaned against the positioning auxiliary block 2, without pushing the glass back and forth, avoiding the risk of scratching the glass and solving the problem of poor appearance caused by clamping. After the position is determined, the glass is fixed on the main positioning fixture 1 by vacuum pumping. When the curved glass is fixed on the main positioning fixture 1, the positioning auxiliary block 2 is removed, and then the corresponding outer edge processing or outer edge data measurement can be carried out. Through the auxiliary positioning of the positioning auxiliary block 2, the repeat positioning positional tolerance can reach within 0.05 mm, solving the problem of inaccurate positioning. Using this method, the defective products caused by positioning problems in production and processing are completely solved, greatly improving the production yield. Through the auxiliary positioning of the positioning auxiliary block 2, there is no need to train professional employees to operate the production. Just simply explain it to new employees and they can start working, saving the labor training cost and increasing the production efficiency.

[0044] Referred to as "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be intermediate elements at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this utility model belongs. The terms used in the description of this utility model herein are only for the purpose of describing specific embodiments and are not intended to limit this utility model.

[0046] The ordinal terms such as "first" and "second" used in this specification can be used to describe various components, but these components are not limited by these terms. The purpose of using these terms is only to distinguish one component from other components. For example, without departing from the scope of the claims of the present invention, the first component can be named the second component, and similarly, the second component can also be named the first component.

[0047] The embodiments of the present utility model have been described above with reference to the accompanying drawings. However, the present utility model is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present utility model, those of ordinary skill in the art can also make many forms without departing from the spirit and scope protected by the claims of the present utility model, and these all belong to the protection scope of the present utility model.

Claims

1. A positioning device for special-shaped glass, wherein the glass comprises a positioning surface, the outer edge of which surrounds the center of the glass and is spaced from the edge of the glass so as to reserve a circle of avoidance surface, characterized in that: The device comprises a main body positioning jig (1) for fixing to a machine platform and a positioning auxiliary block (2) for assisting in positioning the glass and placed on the main body positioning jig (1); The top of the main body positioning jig (1) includes a first contoured curved surface for contouring with the positioning surface and avoiding the avoidance surface, and the top of the positioning auxiliary block (2) includes a second contoured curved surface for contouring with the avoidance surface, the outer edge of the second contoured curved surface is consistent with the edge profile of the glass, and the inner edge of the second contoured curved surface matches the outer edge profile of the first contoured curved surface. The positioning auxiliary block (2) and the side of the main body positioning jig (1) can be detachably assembled, and when the positioning auxiliary block (2) is assembled to the side of the main body positioning jig (1), the inner edge of the second contoured curved surface is flush with the outer edge of the first contoured curved surface.

2. The special-shaped glass positioning device according to claim 1, characterized in that: The number of the positioning auxiliary blocks (2) is two, and the two positioning auxiliary blocks (2) are symmetrically mounted on both sides of the main body positioning fixture (1).

3. The special-shaped glass positioning device according to claim 2, characterized in that: The avoidance surface comprises two arches located on both sides of the center of the glass, and the second contoured curved surfaces of the two positioning auxiliary blocks (2) are respectively contoured with the two arches of the avoidance surface.

4. The special-shaped glass positioning device according to claim 1, characterized in that: A hollow window (10) is arranged at the top center of the main body positioning fixture (1), and the first contoured curved surface is a circle of curved surface surrounding the hollow window (10).

5. The special-shaped glass positioning device according to claim 1, characterized in that: The side of the main body positioning jig (1) is recessed to form a groove (11), and the side of the positioning auxiliary block (2) is protruding to form a boss (21) that cooperates with the groove (11). The positioning auxiliary block (2) and the main body positioning jig (1) are positioned and cooperated with the groove (11) through the boss (21) and the groove (11).

6. The special-shaped glass positioning device according to claim 5, characterized in that: The boss (21) is inserted into the groove (11) and can slide along the groove (11), and the angle between the sliding direction and the vertical direction is less than ninety degrees; when the boss (21) slides to the highest point, the positioning auxiliary block (2) and the main body positioning fixture (1) are fixed by magnetic attraction, and the inner edge of the second contoured surface is flush with the outer edge of the first contoured surface.

7. The special-shaped glass positioning device according to claim 6, characterized in that: The groove wall at the top of the groove (11) is provided with a first magnetic hole (111) for installing a first magnetic component, and the groove wall at the top of the boss (21) is provided with a second magnetic hole (211) for installing a second magnetic component. The positioning auxiliary block (2) and the main body positioning fixture (1) are magnetically fixed by the first magnetic component and the second magnetic component.

8. The special-shaped glass positioning device according to claim 1, characterized in that: The main body positioning jig (1) and the positioning auxiliary block (2) are made of non-metallic material with a hardness lower than that of glass.

9. The special-shaped glass positioning device according to claim 1, characterized in that: A vacuum connection hole (12) for installing a vacuum suction pipe joint is provided at the bottom of the main body positioning jig (1), and the vacuum connection hole (12) is connected to a vacuum air passage that passes through the main body positioning jig (1) and extends to the first contoured curved surface.

10. The special-shaped glass positioning device according to claim 1, characterized in that: The bottom of the main body positioning fixture (1) is also provided with a plurality of positioning pin holes (13) for cooperating with a plurality of positioning pins on the machine platform to achieve positioning; the bottom of the main body positioning fixture (1) is also provided with a plurality of screw holes (14) for fixing to the machine platform by screws after being positioned with the machine platform.

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