Glass laser cutting internal cracking device and method

Abstract

The invention relates to the technical field of glass processing, and particularly discloses a glass laser cutting internal cracking device and method.The glass laser cutting internal cracking device comprises a base, and an internal cracking tool on the base is mainly composed of a pressing mechanism, an internal cracking mechanism and a stripping mechanism; glass is placed on the internal cracking jig, the internal cracking jig is heated and heats the glass to the required cracking temperature through heat conduction, the lower pressing mold of the stripping mechanism supports the lower surface of waste, the upper pressing mold of the lower pressing mechanism slowly pressurizes the upper surface of the glass waste, and meanwhile the stripping mechanism slowly descends; cooling the lower pressing mold and the upper pressing mold by using a cooling liquid, and refrigerating and cooling the glass waste through heat conduction, so that the glass finished product expands after being heated, the waste is contracted after being cooled, and the glass waste is separated from the peripheral finished product to complete splitting; the problems that the glass inner hole cracking efficiency is low and the edge breakage yield is low are solved, drilling separation treatment does not need to be carried out on the glass, dust is not generated in the whole glass machining process, and dust pollution to the glass and equipment is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of glass processing, and in particular to a device and method for cutting inner cracks of glass by laser. Background Art

[0002] Glass cannot be cut directly after the inner hole is cut by laser, so other process methods are needed to separate the glass (referred to as glass inner hole splitting). Currently, laser drilling process is commonly used. The laser drilling process takes a long time, has low production capacity, and is prone to dust pollution of equipment and glass.

[0003] A Chinese patent document CN108529865A discloses an automobile glass cutting machine, comprising a workbench, a glass fixing assembly arranged at the bottom of the workbench, a supporting assembly arranged at the top of the workbench, a cutting assembly arranged on the supporting assembly and slidably connected to the supporting assembly, and a knocking assembly arranged at the bottom of the supporting assembly and slidably connected to the supporting assembly. The present invention places the automobile glass to be processed on the workbench, fixes the glass by adsorbing it through a pneumatic suction cup, slides the sliding block on the supporting assembly, and drives the second cylinder and the cutting knife to move, and the cutting knife cuts the glass. Because the cut glass will not fall off the original glass immediately, the cut glass is knocked by a knocker until the cut part falls off. The whole process is mechanical operation, which solves both the glass cutting problem and the knocking problem of the cut glass falling off.

[0004] This technical content utilizes a cutting knife to cut and uses knocking to separate the waste, which can easily cause the finished glass to break and be damaged. The method of cutting the glass to separate the waste needs to be further optimized.

[0005] Therefore, we provide a glass laser cutting internal crack device and method to solve the above problems. Summary of the invention

[0006] The problem to be solved by the present invention is to provide a glass laser cutting internal crack device and method to overcome the defects in the prior art.

[0007] In order to solve the technical problem, the present invention provides a glass laser cutting inner crack device, comprising a base, wherein the base is provided with a pressing mechanism, an inner crack mechanism, and a stripping mechanism in sequence from top to bottom, and a plurality of first connecting columns are detachably connected to the base; The stripping mechanism includes a lower die guide plate connected to the first connecting column, and the lower die guide plate is slidably connected to the lower die; a plurality of second connecting columns are detachably connected to the lower die guide plate, and a fixed plate is detachably connected to the second connecting column, and the inner crack mechanism includes an inner crack jig connected to the fixed plate; a plurality of third connecting columns are detachably connected to the fixed plate, and the lower pressing mechanism includes an upper die guide plate detachably connected to the third connecting column, and the upper die guide plate is slidably connected to the upper die, and the inner crack jig is provided with a through hole that cooperates with the upper die and the lower die.

[0008] Furthermore, the upper pressing mechanism also includes a plurality of second guide sleeves arranged on the upper die guide plate, the second guide sleeves are slidably connected to a second slide rod, one end of the second slide rod is connected to the upper die cooling base plate, and the other end of the second slide rod is connected to the upper die limit plate.

[0009] Furthermore, the stripping mechanism also includes a plurality of first guide sleeves arranged on the lower die guide plate, the first guide sleeves are slidably connected to a first slide rod, one end of the first slide rod is connected to the lower die cooling base plate, and the other end of the first slide rod is connected to the lower die limit plate.

[0010] Furthermore, a limit bolt for limiting the position of the internal crack jig is arranged on the fixing plate, an embedding groove is opened on the internal crack jig, glass is placed in the embedding groove of the internal crack jig, and a plurality of heating tubes are arranged in the internal crack jig.

[0011] Furthermore, a cylinder is fixedly connected to the upper die guide plate, the upper die limit plate is provided with a second avoidance hole for avoiding the cylinder, the telescopic end of the cylinder is connected to the upper die cooling base plate, and the upper die is detachably connected to the upper die cooling base plate.

[0012] Furthermore, a servo electric cylinder is fixedly connected to the lower die guide plate, the lower die limit plate is provided with a first avoidance hole for avoiding the servo electric cylinder, the telescopic end of the servo electric cylinder is connected to the lower die cooling base plate, and the lower die is detachably connected to the lower die cooling base plate.

[0013] Furthermore, the internal crack jig is located above the fixed plate, the distance between the lower die guide plate and the fixed plate is A value, the distance between the fixed plate and the upper die guide plate is B value, and the distance between the lower die guide plate and the base is C value.

[0014] Furthermore, the A value < B value < C value.

[0015] A method for cutting an internal crack device of glass by laser, comprising the following steps: S1. Use an external laser cutting machine to cut the glass on the inner crack fixture with laser. Glass with a diameter greater than 20 mm is cut by straight cutting laser, and glass with a diameter less than 20 mm is cut by bevel cutting laser. Bevel cutting laser cutting uses an external five-axis linkage laser cutting machine, and straight cutting laser cutting uses an external two-axis linkage laser cutting machine. S2. After the external laser cutting machine completes the glass laser cutting, it is transported to the inner crack jig. The controller controls the heating tube to heat the inner crack jig. The inner crack jig is heated and heats the glass through heat conduction. When the glass is heated to the required cracking temperature, the telescopic end of the servo electric cylinder in the stripping mechanism drives the lower pressing mold cooling bottom plate to move toward the fixed plate, so that the lower pressing mold supports the lower surface of the glass cutting waste; S3, the telescopic end of the cylinder in the lower pressing mechanism drives the upper pressing mold cooling bottom plate to move toward the direction of the glass, so that the upper pressing mold slowly presses the upper surface of the glass waste, while the lower pressing mold in the stripping mechanism slowly descends, and the lower pressing mold and the upper pressing mold are cooled by coolant, and the glass waste is cooled by heat conduction, so that the glass product expands due to heat and the waste contracts due to cold, so that the glass waste is separated from the glass along the through hole to complete the splitting; S4, the upper pressure mold and the lower pressure mold are cooled by coolant. When switching to glass processing of different sizes, the upper pressure mold, the lower pressure mold and the inner crack fixture need to be replaced.

[0016] Compared with the prior art, the glass laser cutting internal crack device and method provided by the present invention have the following beneficial effects: 1. The inner cracking tool of the present invention is mainly composed of a downward pressing mechanism, an inner cracking mechanism and a stripping mechanism. The inner cracking process is to cut an inner hole in the glass, and the internal material falls off as waste; the glass is placed on the inner cracking jig, a heating tube is installed in the cavity of the inner cracking jig, the inner cracking jig is heated and the glass is heated to the required cracking temperature through heat conduction, the downward pressing mold of the stripping mechanism supports the lower surface of the waste, the upper pressing mold of the downward pressing mechanism slowly pressurizes the upper surface of the glass waste, and the stripping mechanism slowly descends, the downward pressing mold and the upper pressing mold are cooled by coolant, and the waste glass is cooled by heat conduction, resulting in the expansion of the finished glass product due to heat and the contraction of the waste due to cold, so that the waste glass is separated from the surrounding finished products to complete the cracking; the present invention solves the problems of low efficiency of cracking the inner hole of the glass and low yield of edge collapse, and can meet the requirements of cutting the inner holes of the glass of different sizes and specifications, without drilling and stripping the glass, and the entire glass processing process does not generate dust, and the glass and equipment are also free of dust pollution.

[0017] 2. Three groups of support columns are arranged on the base of the present invention, and the three groups of support columns cooperate with the supporting pressing mechanism, the internal cracking mechanism and the stripping mechanism respectively. The heights of the three groups of support columns are adjustable, so that the internal cracking device can be flexibly adjusted according to actual working conditions to cope with different work requirements. The glass waste is clamped by the upper pressing mold in the pressing mechanism cooperating with the lower pressing mold in the stripping mechanism, and the waste is made to descend along the through hole well, so that the waste is stably separated from the finished product around the glass, reducing the possibility of glass collapse due to stripping, and improving the yield rate of the glass internal cracking process.

[0018] 3. The overall structural design of the present invention is simple and ingenious, without complicated design and low cost of parts, which is convenient for operators to disassemble, assemble and maintain. The working principle of the whole device is simple and clear, without complicated processing technology, which is convenient for long-term and stable operation of the device and also brings convenience to operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A stereoscopic diagram of a glass laser cutting inner crack device according to the present invention; Figure 2 This is a front view of a glass laser cutting inner crack device of the present invention; Figure 3 This is a schematic diagram of the base structure of a glass laser cutting inner crack device of the present invention; Figure 4 This is a schematic diagram of the structure of the upper pressing mechanism of a glass laser cutting inner crack device of the present invention; Figure 5 This is a schematic diagram of the structure of a pressing mechanism of a glass laser cutting inner crack device of the present invention; Figure 6 A schematic diagram of the structure of an internal crack jig of a glass laser cutting internal crack device according to the present invention; The corresponding component names of the various reference numerals in the figure are: 1. Base; 2. A first connecting column; 3. Lower die guide plate; 301. Lower die limit plate; 302. First slide bar; 303. Servo electric cylinder; 304. First guide sleeve; 305. Lower die cooling bottom plate; 306. Lower die; 4. A second connecting column; 5. Fixed plate; 6. The third connecting column; 7. Upper die guide plate; 701. Upper die limit plate; 702. Second slide bar; 703. Cylinder; 704. Second guide sleeve; 705. Upper die cooling bottom plate; 706. Upper die; 8. Internal crack fixture; 801. Through hole; 802. Heating tube; 9. Glass. DETAILED DESCRIPTION

[0021] The present application is described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0023] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0024] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0025] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the examples can be practiced without these specific details.

[0026] The technical solutions provided by various embodiments of the present application are described below in conjunction with the accompanying drawings.

[0027] See also Figures 1 to 6 The present invention provides a glass laser cutting inner crack device, comprising a base 1, the base 1 is provided with a pressing mechanism, an inner crack mechanism, and a stripping mechanism in sequence from top to bottom, and a plurality of first connecting columns 2 are detachably connected to the base 1; The stripping mechanism includes a lower die guide plate 3 connected to the first connecting column 2, and the lower die guide plate 3 is slidably connected to the lower die 306; a plurality of second connecting columns 4 are detachably connected to the lower die guide plate 3, and a fixed plate 5 is detachably connected to the second connecting column 4, and the inner crack mechanism includes an inner crack jig 8 connected to the fixed plate 5; a plurality of third connecting columns 6 are detachably connected to the fixed plate 5, and the lower pressing mechanism includes an upper die guide plate 7 detachably connected to the third connecting column 6, and the upper die guide plate 7 is slidably connected to the upper die 706, and a through hole 801 is provided on the inner crack jig 8 for cooperating with the upper die 706 and the lower die 306.

[0028] See also Figure 4 The upper pressing mechanism also includes a plurality of second guide sleeves 704 arranged on the upper die guide plate 7, the second guide sleeves 704 are slidably connected to the second slide bar 702, one end of the second slide bar 702 is connected to the upper die cooling base plate 705, and the other end of the second slide bar 702 is connected to the upper die limit plate 701.

[0029] See also Figure 5 The stripping mechanism also includes a plurality of first guide sleeves 304 arranged on the lower die guide plate 3, the first guide sleeves 304 are slidably connected to the first slide bar 302, one end of the first slide bar 302 is connected to the lower die cooling bottom plate 305, and the other end of the first slide bar 302 is connected to the lower die limit plate 301.

[0030] See also Figures 1 to 3 and Figure 6 A limiting bolt of a limited internal crack fixture 8 is arranged on the fixed plate 5, an embedding groove is opened on the internal crack fixture 8, a glass 9 is placed in the embedding groove of the internal crack fixture 8, and a plurality of heating tubes 802 are arranged in the internal crack fixture 8.

[0031] See also Figures 4 to 6 A cylinder 703 is fixedly connected to the upper die guide plate 7, and a second avoidance hole for avoiding the cylinder 703 is opened on the upper die limit plate 701. The telescopic end of the cylinder 703 is connected to the upper die cooling bottom plate 705, and the upper die 706 is detachably connected to the upper die cooling bottom plate 705.

[0032] See also Figures 2 to 6A servo electric cylinder 303 is fixedly connected to the lower die guide plate 3, and a first avoidance hole for avoiding the servo electric cylinder 303 is opened on the lower die limit plate 301. The telescopic end of the servo electric cylinder 303 is connected to the lower die cooling base plate 305, and the lower die 306 is detachably connected to the lower die cooling base plate 305. The inner crack jig 8 is located above the fixed plate 5, and the distance from the lower die guide plate 3 to the fixed plate 5 is A value, the distance from the fixed plate 5 to the upper die guide plate 7 is B value, and the distance from the lower die guide plate 3 to the base 1 is C value, and A value < B value < C value.

[0033] See also Figures 1 to 6 , a method for laser cutting an internal crack device of glass, comprising the following steps: S1. Use an external laser cutting machine to cut the glass 9 on the inner crack fixture 8 with a laser. Glass 9 with a diameter greater than 20 mm is cut by straight cutting laser, and glass 9 with a diameter less than 20 mm is cut by bevel cutting laser. Bevel cutting laser cutting uses an external five-axis linkage laser cutting machine, and straight cutting laser cutting uses an external two-axis linkage laser cutting machine. S2. After the external laser cutting machine completes the laser cutting of the glass 9, it is transported to the inner crack jig 8. The controller controls the heating tube 802 to heat the inner crack jig 8. The inner crack jig 8 is heated and heats the glass 9 through heat conduction. When the glass 9 is heated to the required cracking temperature, the telescopic end of the servo electric cylinder 303 in the stripping mechanism drives the lower pressing mold cooling bottom plate 305 to move toward the fixed plate 5, so that the lower pressing mold 306 supports the lower surface of the cut waste of the glass 9. S3, the telescopic end of the cylinder 703 in the downward pressing mechanism drives the upper pressing mold cooling bottom plate 705 to move toward the direction of the glass 9, so that the upper pressing mold 706 slowly presses the upper surface of the waste glass 9, while the downward pressing mold 306 in the stripping mechanism slowly descends, so that the waste glass 9 is separated from the glass 9 along the through hole 801 to complete the splitting; S4, the upper pressing mold 706 and the lower pressing mold 306 are cooled by the cooling liquid, and the glass 9 of different sizes is switched for processing. The upper pressing mold 706, the lower pressing mold 306 and the inner cracking jig 8 need to be replaced.

[0034] The inner crack tooling of the present invention is mainly composed of a downward pressing mechanism, an inner cracking mechanism, and a stripping mechanism. The inner cracking process is to cut an inner hole in the glass 9, and the internal material falls off as waste; the glass 9 is placed on the inner cracking fixture 8, and a heating tube 802 is installed in the cavity of the inner cracking fixture 8. The inner cracking fixture 8 is heated and the glass 9 is heated to the required cracking temperature through heat conduction. The downward pressing mold 306 of the stripping mechanism supports the lower surface of the waste, and the upper pressing mold 706 of the downward pressing mechanism slowly presses the upper surface of the waste glass 9. At the same time, the stripping mechanism slowly moves downward. The lower pressing mold 306 and the upper pressing mold 706 are cooled by a coolant, and the waste glass 9 is cooled by heat conduction, so that the finished glass expands when heated and the waste shrinks when cooled, so that the waste glass 9 is separated from the surrounding finished products and the fragments are completed. The present invention solves the problems of low efficiency of fragmentation of inner holes in glass and low yield of edge collapse, and can meet the requirements of cutting inner holes in glass of different sizes and specifications. There is no need to drill and separate the glass, and the entire glass processing process does not generate dust, and the glass and equipment are also free of dust pollution.

[0035] The same and similar parts between the various embodiments in this specification can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0036] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A glass laser cutting internal crack device, characterized in that: It comprises a base (1), the base (1) being provided with a pressing mechanism, an inner cracking mechanism and a material stripping mechanism in order from top to bottom, and a plurality of first connecting columns (2) being detachably connected to the base (1); The stripping mechanism comprises a lower die guide plate (3) connected to the first connecting column (2), the lower die guide plate (3) being slidably connected to a lower die (306); a plurality of second connecting columns (4) being detachably connected to the lower die guide plate (3), a fixing plate (5) being detachably connected to the second connecting column (4), the inner cracking mechanism comprises an inner cracking jig (8) connected to the fixing plate (5); a plurality of third connecting columns (6) being detachably connected to the fixing plate (5), the lower pressing mechanism comprises an upper die guide plate (7) being detachably connected to the third connecting columns (6), the upper die guide plate (7) being slidably connected to an upper die (706), and the inner cracking jig (8) being provided with a through hole (801) cooperating with the upper die (706) and the lower die (306); The pressing mechanism further comprises a plurality of second guide sleeves (704) arranged on the upper die guide plate (7), the second guide sleeves (704) being slidably connected to a second slide bar (702), one end of the second slide bar (702) being connected to an upper die cooling bottom plate (705), and the other end of the second slide bar (702) being connected to an upper die limiting plate (701); The stripping mechanism further comprises a plurality of first guide sleeves (304) arranged on the lower die guide plate (3), the first guide sleeves (304) being slidably connected to a first slide bar (302), one end of the first slide bar (302) being connected to a lower die cooling bottom plate (305), and the other end of the first slide bar (302) being connected to a lower die limiting plate (301); The fixing plate (5) is provided with a limit bolt for limiting the internal crack jig (8), the internal crack jig (8) is provided with an embedding groove, a glass (9) is placed in the embedding groove of the internal crack jig (8), and a plurality of heating tubes (802) are arranged in the internal crack jig (8).

2. The glass laser cutting internal crack device according to claim 1, characterized in that: The upper die guide plate (7) is fixedly connected to a cylinder (703); the upper die limit plate (701) is provided with a second avoidance hole for avoiding the cylinder (703); the telescopic end of the cylinder (703) is connected to the upper die cooling bottom plate (705); and the upper die (706) is detachably connected to the upper die cooling bottom plate (705).

3. The glass laser cutting inner crack device according to claim 1, characterized in that: A servo electric cylinder (303) is fixedly connected to the lower die guide plate (3); a first avoidance hole for avoiding the servo electric cylinder (303) is provided on the lower die limit plate (301); a telescopic end of the servo electric cylinder (303) is connected to the lower die cooling bottom plate (305); and the lower die (306) is detachably connected to the lower die cooling bottom plate (305).

4. The glass laser cutting internal crack device according to claim 1, characterized in that: The internal crack jig (8) is located above the fixed plate (5), the distance between the lower die guide plate (3) and the fixed plate (5) is A, the distance between the fixed plate (5) and the upper die guide plate (7) is B, and the distance between the lower die guide plate (3) and the base (1) is C.

5. The glass laser cutting inner crack device as claimed in claim 4, characterized in that: The A value < B value < C value.

6. A method for cutting an inner crack of a glass by laser, applied to the inner crack of a glass by laser cutting as claimed in any one of claims 1 to 5, characterized in that: The steps include: S1. Using an external laser cutting machine to perform laser cutting on the glass (9) on the internal crack jig (8), the glass (9) with a diameter greater than 20 mm is cut by straight cutting laser, and the glass (9) with a diameter less than 20 mm is cut by bevel cutting laser. The bevel cutting laser cutting uses an external five-axis linkage laser cutting machine, and the straight cutting laser cutting uses an external two-axis linkage laser cutting machine; S2, after the external laser cutting machine completes laser cutting of the glass (9), it is transported to the inner crack jig (8), and the controller controls the heating tube (802) to heat the inner crack jig (8). The inner crack jig (8) is heated and heats the glass (9) through heat conduction. When the glass (9) is heated to the required cracking temperature, the telescopic end of the servo electric cylinder (303) in the stripping mechanism drives the lower pressing mold cooling bottom plate (305) to move in the direction of the fixed plate (5), so that the lower pressing mold (306) supports the lower surface of the cut waste of the glass (9); S3, the telescopic end of the cylinder (703) in the downward pressing mechanism drives the upper pressing mold cooling bottom plate (705) to move in the direction of the glass (9), so that the upper pressing mold (706) slowly applies pressure to the upper surface of the waste glass (9), while the downward pressing mold (306) in the stripping mechanism slowly descends, and a coolant is used to cool the lower pressing mold (306) and the upper pressing mold (706), and the waste glass is cooled and cooled by heat conduction, so that the finished glass expands due to heat and the waste shrinks due to cold, so that the waste glass (9) is separated from the glass (9) along the through hole (801) to complete the splitting; S4, the upper pressing mold (706) and the lower pressing mold (306) are cooled by a cooling liquid, and when switching to process glass (9) of different sizes, the upper pressing mold (706), the lower pressing mold (306) and the inner cracking jig (8) need to be replaced.

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