Bernoulli sucker capable of penetrating laser

Abstract

The utility model discloses a Bernoulli sucker capable of penetrating laser, which belongs to the technical field of laser processing and comprises an adsorption main body, an adsorption air knife, light-transmitting glass and an air distribution block. The light-transmitting glass is installed in the middle of the adsorption main body, the adsorption air knives are annularly installed on the adsorption main body at intervals and surround the outer side of the light-transmitting glass, and air gaps are formed between the adsorption air knives and the adsorption main body in a matched mode; an air inlet channel and a plurality of air distribution channels communicated in sequence are arranged in the air distribution block, a plurality of adsorption air channels are arranged in the adsorption body, and compressed air enters the air distribution channels and the adsorption air channels in sequence through the air inlet channel and is conveyed to the air gaps through the adsorption air channels. The compressed air is compressed again to form airflow which is horizontally diffused to the surface of the adsorption main body at a high speed along the air gap. A product can be remotely adsorbed through the Bernoulli principle, the light-transmitting glass is adopted as a supporting back plate, the flatness of the product can be guaranteed, and laser can penetrate through the light-transmitting glass to machine the product adsorbed on the light-transmitting glass.

Description

Technical Field

[0001] The utility model belongs to the technical field of laser processing, and particularly relates to a Bernoulli chuck capable of penetrating laser light. Background Art

[0002] In the panel MicroLED display processing industry, it is necessary to carry RGB products, and after the RGB and the substrate are aligned, laser processing needs to be performed on the RGB. The method of directly sucking the product by vacuum can carry the RGB product, but the adsorption distance using vacuum adsorption is short, and the product is prone to deformation after being adsorbed, resulting in insufficient flatness and inability to ensure the relative parallelism with the substrate plane.

[0003] A Bernoulli chuck is a chuck that uses compressed air to generate a high-speed jet through a small diameter (small hole), and the high-speed jet carries away the surrounding gas, thereby generating negative pressure to suck items. Adsorbing through the Bernoulli chuck can solve the problem of adsorbing products at a long distance.

[0004] However, a conventional Bernoulli chuck can only carry and process products directly above, and laser light cannot penetrate its interior for laser processing. Summary of the Utility Model

[0005] In view of one or more of the above defects or improvement requirements in the prior art, the present utility model provides a Bernoulli chuck capable of penetrating laser light, which can adsorb products at a long distance through the Bernoulli principle. A light-transmitting glass is used as a support backplane, which can ensure the flatness of the adsorbed product, and the laser light can pass through the light-transmitting glass to process the product adsorbed on the light-transmitting glass.

[0006] To achieve the above object, the present utility model provides a Bernoulli chuck capable of penetrating laser light, including an adsorption main body, an adsorption air knife, a light-transmitting glass, and an air distribution block;

[0007] The light-transmitting glass is installed in the middle of the adsorption main body. The adsorption air knives are installed at intervals circumferentially on the adsorption main body and surround the outside of the light-transmitting glass. There is a first height difference between the side of the adsorption air knife away from the light-transmitting glass and the adsorption main body, and an air gap is formed by the cooperation between the adsorption air knife and the adsorption main body;

[0008] The air distribution block is provided with an air inlet channel and a plurality of sequentially connected air distribution channels, and the air inlet channel is communicated with the air distribution channels; the adsorption main body is provided with a plurality of adsorption air channels, and each adsorption air channel is respectively communicated with the corresponding air distribution channel and the air gap; compressed air enters the air distribution channels, adsorption air channels in sequence through the air inlet channel, and is transmitted to the air gap through the adsorption air channels, so that the compressed air is compressed again to form an air flow that horizontally diverges at high speed along the air gap towards the surface of the adsorption main body.

[0009] As a further improvement of the utility model, the air gap is Z-shaped, and the side of the adsorption wind knife away from the light-transmitting glass is arc-shaped, so that the compressed air is dispersed horizontally at high speed in an arc shape toward the surface of the adsorption body.

[0010] As a further improvement of the present invention, the first height difference ranges from 0.1 to 2 mm.

[0011] As a further improvement of the present utility model, the air distributor block is installed on a side of the adsorption body away from the adsorption air knife.

[0012] As a further improvement of the present invention, there is a second height difference between the light-transmitting glass and the adsorption air knife, so that when the product is bonded to the light-transmitting glass, there is a gap between the product and the adsorption air knife.

[0013] As a further improvement of the utility model, the air dividing block is provided with a vacuum breaking air inlet, a first vacuum breaking air duct connected to the vacuum breaking air inlet is provided in the air dividing block, a second vacuum breaking air duct connected to the first vacuum breaking air duct is provided in the adsorption body, and the second vacuum breaking air duct is connected to the surface of the adsorption air knife.

[0014] As a further improvement of the utility model, two vacuum-breaking air inlets are provided and are distributed on two opposite sides of the light-transmitting glass; two first vacuum-breaking air ducts are provided in the air dividing block, and two second vacuum-breaking air ducts are provided in the adsorption body; the vacuum-breaking air inlets, the first vacuum-breaking air ducts and the second vacuum-breaking air ducts are arranged in one-to-one correspondence, and each vacuum-breaking air inlet is connected to the surface of the adsorption air knife through the corresponding first vacuum-breaking air duct and the second vacuum-breaking air duct in turn.

[0015] As a further improvement of the utility model, the air separation block is provided with an adsorption air inlet, and the air inlet duct is connected to the adsorption air inlet; the adsorption air inlet and the vacuum breaking air inlet are connected to the same compressed air supply device and are switched by a solenoid valve.

[0016] As a further improvement of the utility model, the air distribution block is provided with a vacuum detection airway opening, a vacuum detection airway connected to the vacuum detection airway opening is provided in the air distribution block, an airway connected to the vacuum detection airway is provided in the adsorption body, and the airway is connected to the surface of the adsorption air knife.

[0017] As a further improvement of the utility model, the vacuum detection airway opening is connected to a digital negative pressure gauge.

[0018] In general, the above technical solution conceived by the utility model has the following beneficial effects compared with the prior art:

[0019] (1)The Bernoulli chuck of the present utility model that can penetrate laser light has a transparent glass installed in the middle of the adsorption main body. The adsorption air knives are installed circumferentially and spaced apart on the adsorption main body and surround the outside of the transparent glass. Compressed air is transmitted through the adsorption air channels in the adsorption main body to the air gap and is compressed again, forming a high-speed horizontal divergent airflow along the air gap towards the surface of the adsorption main body, enabling the product to be adsorbed on the transparent glass, ensuring the flatness of the product, and allowing the laser to pass through the transparent glass to process the product adsorbed on the transparent glass.

[0020] (2)The Bernoulli chuck of the present utility model that can penetrate laser light can quickly break the adsorption force between the product and the transparent glass by introducing air through the vacuum-breaking air inlet, thereby enabling the product to quickly fall off and greatly reducing the release time. The symmetrically arranged vacuum-breaking air inlets can balance the force on the product and allow the product to separate from the transparent glass horizontally.

[0021] (3)The Bernoulli chuck of the present utility model that can penetrate laser light has a vacuum degree detection air channel port connected to the surface of the adsorption air knife through the detection vacuum degree air channel. The adsorption pressure of the product adsorbed on the transparent glass can be detected by a digital display negative pressure gauge. When the adsorption pressure reaches the set value, the control system then performs the next process (such as handling, laser processing, etc.).

[0022] (4)The Bernoulli chuck of the present utility model that can penetrate laser light has a reasonable structural design, is simple and compact in structure. Description of the Drawings

[0023] Figure 1 is a top view structural schematic diagram of the Bernoulli chuck of the present utility model according to an embodiment;

[0024] Figure 2 is a bottom view structural schematic diagram of the Bernoulli chuck of the present utility model according to an embodiment;

[0025] Figure 3 is a cross-sectional structural schematic diagram of the Bernoulli chuck of the present utility model according to an embodiment;

[0026] Figure 4 is an internal air channel structural schematic diagram of the air distribution block related to the embodiment of the present utility model;

[0027] Figure 5 is an air channel control schematic diagram related to the embodiment of the present utility model.

[0028] In all the attached drawings, the same reference numerals denote the same technical features, specifically: 1. Adsorption main body; 2. Adsorption air knife; 3. Transparent glass; 4. Adsorption air inlet; 5. Air gap; 6. Vacuum-breaking air inlet; 7. Vacuum degree detection airway opening; 8. Air distribution block; 81. Air inlet channel; 82. Air distribution channel; 83. First vacuum-breaking airway; 84 - Vacuum degree detection airway; 9. Adsorption airway; 10. Second vacuum-breaking airway. Detailed implementation mode

[0029] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the following further details the present utility model in conjunction with the attached drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model. In addition, the technical features involved in the various implementation modes of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0030] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the attached drawings. They are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model.

[0031] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0032] In the present utility model, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0034] As a preferred embodiment of the present invention, Figures 1 to 4 As shown, the laser-permeable Bernoulli suction cup of the utility model comprises an adsorption body 1, an adsorption air knife 2, a light-transmitting glass 3 and an air separator 8. The adsorption body 1 serves as a mounting base, and a light-transmitting glass 3 is mounted in the middle thereof. The light-transmitting glass 3 serves as a supporting back plate of the product, which can ensure the adsorption flatness of the product, provide a lateral sliding friction force for the product contact, and laser processing can be performed in the area covered by the light-transmitting glass 3. The adsorption air knife 2 is installed on the adsorption body 1 at an annular interval and surrounds the outside of the light-transmitting glass 3. There is a first height difference between the side of the adsorption air knife 2 away from the light-transmitting glass 3 and the adsorption body 1, and an air gap 5 is formed between the adsorption air knife 2 and the adsorption body 1.

[0035] The air distribution block 8 is provided with an adsorption air inlet 4, and an air inlet 81 and a plurality of sequentially connected air distribution channels 82 are provided inside the air distribution block 8, the air inlet 81 is connected with the air distribution channels 82, and the air inlet 81 is connected with the adsorption air inlet 4 at the same time; a plurality of adsorption air channels 9 are provided inside the adsorption body 1, and each adsorption air channel 9 is respectively connected with the corresponding air distribution channel 81 and the air gap 5. The compressed air introduced from the adsorption air inlet 4 enters the air distribution channel 82 and the adsorption air channel 9 sequentially through the air inlet 81, and is transmitted to the air gap 5 through the adsorption air channel 9, so that the compressed air is compressed again to form a high-speed airflow that diverges horizontally along the air gap 5 toward the surface of the adsorption body 1. By using the Bernoulli principle, the atmospheric pressure between the adsorption body 1 and the product is unbalanced, and the atmospheric pressure will bring the product closer to the light-transmitting glass 3 until it fits with the light-transmitting glass 3, thereby adsorbing the product on the light-transmitting glass 3.

[0036] In the specific embodiment shown in the drawings, the light-transmitting glass 3 is rectangular, four adsorption air knives 2 are provided, and the adsorption air knives 2 are circumferentially installed on the adsorption body 1 at intervals and surround the light-transmitting glass 3. However, the present invention is not limited to the above specific structure.

[0037] Preferably, the air distributor block 8 is installed on a side of the adsorption body 1 facing away from the adsorption air knife 2 .

[0038] Preferably, the air gap 5 is in a Z-like shape, and the side of the adsorption air knife 2 away from the light-transmitting glass 3 is arc-shaped, so that the compressed air diverges horizontally and at high speed in an arc shape towards the surface of the adsorption main body 1.

[0039] Preferably, the range of the first height difference is 0.1 - 2 mm.

[0040] Reference Figure 3 , the compressed air is transmitted to the air gap 5 through the adsorption air passage 9 and flows along the Z-like air gap 5. During this process, the compressed air is compressed again; due to the first height difference between the side of the adsorption air knife 2 away from the light-transmitting glass 3 and the adsorption main body 1, the compressed air compressed again exits from the air gap 5 between the side of the adsorption air knife 2 away from the light-transmitting glass 3 and the adsorption main body 1, forming an airflow that diverges horizontally and at high speed along the surface of the adsorption main body 1, thereby adsorbing the product on the light-transmitting glass 3. In this application, the range of the first height difference is set between 0.1 - 2 mm, which can ensure that the product can be adsorbed on the light-transmitting glass 3.

[0041] Preferably, there is a second height difference between the light-transmitting glass 3 and the adsorption air knife 2, so that when the product is in contact with the light-transmitting glass 3, there is a certain gap between the product and the adsorption air knife 2. The specific height difference is not limited as long as it does not affect the adsorption of the product on the light-transmitting glass 3.

[0042] Furthermore, in a preferred embodiment of the present utility model, the air distribution block 8 is provided with a vacuum-breaking air inlet 6, a first vacuum-breaking air passage 83 communicating with the vacuum-breaking air inlet 6 is provided in the air distribution block 8, a second vacuum-breaking air passage 10 communicating with the first vacuum-breaking air passage 83 is provided in the adsorption main body 1, and the second vacuum-breaking air passage 10 communicates with the surface of the adsorption air knife 2. During vacuum-breaking, the compressed air is sequentially transmitted to the first vacuum-breaking air passage 83 and the second vacuum-breaking air passage 10 through the vacuum-breaking air inlet 6 and exits from the surface of the adsorption air knife 2. During vacuum-breaking, the compressed air directly acts on the surface of the product, causing the product to be broken into a vacuum by the impact of the compressed air, so that the product is separated from the light-transmitting glass 3.

[0043] In the implementation of the present utility model, introducing air through the vacuum-breaking air inlet 6 can quickly break the adsorption force between the product and the light-transmitting glass 3, so that the product can quickly fall off. At least one vacuum-breaking air inlet 6 is provided. Preferably, two vacuum-breaking air inlets 6 are provided and are distributed on opposite sides of the light-transmitting glass 3; at the same time, two first vacuum-breaking air passages 83 are provided in the air distribution block 8, and two second vacuum-breaking air passages 10 are provided in the adsorption main body 1. The vacuum-breaking air inlets 6, the first vacuum-breaking air passages 83, and the second vacuum-breaking air passages 10 are arranged in one-to-one correspondence, and each vacuum-breaking air inlet 6 communicates with the surface of the adsorption air knife 2 through the corresponding first vacuum-breaking air passage 83 and second vacuum-breaking air passage 10 in sequence. By providing two opposite vacuum-breaking air inlets 6, the product can be balanced in force during vacuum-breaking, allowing the product to be separated from the light-transmitting glass 3 horizontally.

[0044] Further, in a preferred embodiment of the present utility model, the air distribution block 8 is provided with a vacuum degree detection airway port 7, and an air passage for detecting vacuum degree 84 communicating with the vacuum degree detection airway port 7 is provided inside the air distribution block 8. At the same time, an air passage (the structure of this air passage is the same as that of the second vacuum-breaking airway 10) communicating with the air passage for detecting vacuum degree 84 is provided inside the adsorption main body 1, and this air passage communicates with the surface of the adsorption air knife 2. The vacuum degree detection airway port 7 is connected to a digital display negative pressure gauge, and the adsorption pressure, that is, the vacuum degree, is detected through the digital display negative pressure gauge.

[0045] It should be noted that the sub-airways 82, the first vacuum-breaking airway 83, and the air passage for detecting vacuum degree 84 inside the air distribution block 8 do not interfere with each other.

[0046] It should be noted that the Bernoulli suction cup of the present utility model that can penetrate laser light can be installed upright or upside down, that is, it can not only adsorb the product from bottom to top, but also adsorb the product from top to bottom.

[0047] Further as Figure 5 shown, for the Bernoulli suction cup of the present utility model in the embodiment, the air passage control process and principle are as follows:

[0048] The adsorption air inlet 4 and the vacuum-breaking air inlet 6 of the present utility model are connected to the same compressed air supply device and are switched through an electromagnetic valve (such as a two-position five-way electromagnetic valve). When adsorbing, the electromagnetic valve is switched to connect the adsorption air inlet 4 with compressed air, and when breaking vacuum, the electromagnetic valve is switched to connect the vacuum-breaking air inlet 6 with compressed air.

[0049] Further, speed control valves are provided on both the adsorption air path and the vacuum-breaking air path to adjust the flow rate of compressed air. When adsorbing, the compressed air enters the adsorption air inlet 4 through the two-position five-way electromagnetic valve and the speed control valve on the adsorption air path, and then is transmitted to the air gap 5 along the air inlet passage 81, the sub-airway 82, and the adsorption air passage 9, and the product is adsorbed on the light-transmitting glass 3 by using the Bernoulli principle; the digital display negative pressure gauge connected to the vacuum degree detection airway port 7 starts to work to detect the adsorption pressure. When the adsorption pressure reaches the set value, the control system executes the next process (such as handling, laser processing, etc.); after the execution is completed and when breaking vacuum, the two-position five-way electromagnetic valve is switched to make the compressed air be transmitted to the surface of the adsorption air knife 2 through the speed control valve on the vacuum-breaking air path, so that the product 2 falls off from the light-transmitting glass 3.

[0050] This application uses the Bernoulli principle to adsorb the product on the light-transmitting glass 3. At this time, the area to be processed of the product faces the light-transmitting glass 3. When laser processing the product, the laser can pass through the light-transmitting glass 3 to perform laser processing on the area to be processed, and the product has good flatness during processing, so that the laser processing effect is good.

[0051] Those skilled in the art can easily understand that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A Bernoulli suction cup capable of penetrating a laser, characterized in that, It includes an adsorption body, an adsorption air knife, a light-transmitting glass and an air distribution block; The light-transmitting glass is installed in the middle of the adsorption body, the adsorption air knives are installed on the adsorption body at intervals in an annular direction and surround the outside of the light-transmitting glass, a first height difference exists between the side of the adsorption air knife away from the light-transmitting glass and the adsorption body, and an air gap is formed between the adsorption air knife and the adsorption body; An air inlet duct and a plurality of air inlet ducts connected in sequence are provided in the air distribution block, and the air inlet duct is connected to the air inlet duct; a plurality of adsorption air inlets are provided in the adsorption body, and each of the adsorption air inlets is connected to the corresponding air inlet duct and the air gap respectively; compressed air enters the air inlet duct and the adsorption air in sequence through the air inlet duct, and is transmitted to the air gap through the adsorption air inlet duct, so that the compressed air is compressed again to form an airflow that diverges horizontally at high speed along the air gap toward the surface of the adsorption body.

2. The Bernoulli suction cup capable of penetrating laser according to claim 1, wherein, The air gap is quasi-Z-shaped, and the side of the adsorption wind knife away from the light-transmitting glass is arc-shaped, so that the compressed air is horizontally dispersed at high speed in an arc shape toward the surface of the adsorption body.

3. The Bernoulli suction cup capable of penetrating laser according to claim 1, wherein The first height difference ranges from 0.1 to 2 mm.

4. The Bernoulli suction cup capable of penetrating laser according to claim 1, characterized in that, The air distribution block is installed on a side of the adsorption body away from the adsorption air knife.

5. The Bernoulli suction cup capable of penetrating a laser according to claim 1, wherein, There is a second height difference between the light-transmitting glass and the adsorption air knife, so that when the product is attached to the light-transmitting glass, there is a gap between the product and the adsorption air knife.

6. The Bernoulli suction cup capable of penetrating a laser according to any one of claims 1-5, characterized in that, The air separation block is provided with a vacuum breaking air inlet, a first vacuum breaking air duct connected to the vacuum breaking air inlet is provided in the air separation block, a second vacuum breaking air duct connected to the first vacuum breaking air duct is provided in the adsorption body, and the second vacuum breaking air duct is connected to the surface of the adsorption air knife.

7. The Bernoulli suction cup capable of penetrating laser according to claim 6, characterized in that, There are two vacuum-breaking air inlets, and they are distributed on two opposite sides of the light-transmitting glass; two first vacuum-breaking air ducts are arranged in the air dividing block, and two second vacuum-breaking air ducts are arranged in the adsorption body; the vacuum-breaking air inlets, the first vacuum-breaking air ducts and the second vacuum-breaking air ducts are arranged in one-to-one correspondence, and each vacuum-breaking air inlet is connected to the surface of the adsorption air knife through the corresponding first vacuum-breaking air duct and the second vacuum-breaking air duct in turn.

8. The Bernoulli suction cup capable of penetrating laser according to claim 6, characterized in that, The air separation block is provided with an adsorption air inlet, and the air inlet duct is connected with the adsorption air inlet; the adsorption air inlet and the vacuum breaking air inlet are connected with the same compressed air supply device and are switched by a solenoid valve.

9. The Bernoulli suction cup capable of penetrating laser according to any one of claims 1-5 or 7, 8, characterized in that The air separation block is provided with a vacuum detection airway opening, a vacuum detection airway connected to the vacuum detection airway opening is provided in the air separation block, an airway connected to the vacuum detection airway is provided in the adsorption body, and the airway is connected to the surface of the adsorption air knife.

10. The Bernoulli suction cup capable of penetrating laser according to claim 9, characterized in that, The vacuum degree detection airway opening is connected to a digital negative pressure gauge.

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