Vacuum adsorption device

Abstract

The embodiment of the utility model discloses a vacuum adsorption device which comprises an air guide part, a vacuum adsorption part and a control part, the air guide part comprises a first air guide channel, and one end of the air guide part is used for being connected with a vacuum generation device; the adsorption part is used for adsorbing a to-be-detected part, the to-be-detected part is adsorbed to the adsorption part in the first direction, the adsorption part is connected with the other end of the air guide part, the adsorption part comprises an adsorption cavity formed in the adsorption part, the adsorption cavity comprises an adsorption opening, and the adsorption opening is communicated with the outside; the at least one air vent is formed in the cavity side wall of the adsorption cavity; and at least one second air guide channel, each second air guide channel is communicated with one air vent, and each second air guide channel is communicated with the first air guide channel. The vacuum adsorption device further comprises a light blocking part which is arranged on the adsorption part and located in the adsorption cavity, the light blocking part is arranged on the side, away from the adsorption opening, of the ventilation opening in the first direction, and the projection of the first air guide channel in the first direction is located in the light blocking part.

Description

Technical Field

[0001] The present application relates to the field of vacuum adsorption technology, and in particular to a vacuum adsorption device. Background Art

[0002] With the continuous innovation of mobile phone camera technology, the difficulty of camera manufacturing process has increased. In order to adapt to the development of the market, it is necessary to continuously develop high-end camera production technology. Among them, the glass bonding process is a key process, which requires the installation of glass with infrared cut-off filter without attached particles in a dust-free environment.

[0003] In industrial inspection, white nozzles are often used to manipulate transparent glass. The large circular hole in the center of the nozzle allows light projected onto the glass to penetrate the circular hole, causing the camera to mistakenly detect the circular hole in the center of the nozzle when detecting particles, affecting the accuracy of the camera's inspection results. Misdetection may cause qualified glass to be judged as defective, affecting the efficiency of camera production. Utility Model Content

[0004] The embodiment of the present application discloses a vacuum adsorption device, which can ensure that no unnecessary light source will affect the detection result when the test piece is tested, solves the influence of light transmittance of the air guide channel on the detection result in the related technology, and ensures the accuracy of the detection result.

[0005] In order to achieve the above-mentioned purpose, an embodiment of the present application provides a vacuum adsorption device, including: an air guide member, the air guide member includes a first air guide channel, one end of the air guide member is used to connect a vacuum generating device; an adsorption member, used to adsorb the part to be detected, the part to be detected is adsorbed on the adsorption member along a first direction, the adsorption member is connected to the other end of the air guide member, the adsorption member includes: an adsorption cavity, formed on the adsorption member, the adsorption cavity includes an adsorption port, and the adsorption port is connected to the outside; at least one air vent is formed on the side wall of the adsorption cavity; at least one second air guide channel, each second air guide channel is connected to an air vent, and each second air guide channel is connected to the first air guide channel; the vacuum adsorption device also includes a light blocking member, which is arranged on the adsorption member and located in the adsorption cavity, along the first direction, the light blocking member is arranged on the side of the air vent away from the adsorption port, and the projection of the first air guide channel along the first direction is located in the light blocking member.

[0006] As an optional embodiment, the adsorption member also includes: a mounting portion, the mounting portion is connected to the air guide member; a third air guide channel, the third air guide channel is at least partially formed in the mounting portion, the third air guide channel is connected to the first air guide channel and at least one second air guide channel, and the light blocking member covers the third air guide channel.

[0007] As an optional embodiment, the second air guide channel includes: a first air guide groove formed on the bottom wall of the adsorption chamber, the first air guide groove extends toward the side wall of the adsorption chamber, the first air guide groove is connected to the third air guide channel, and the light blocking member covers the first air guide groove; a second air guide groove formed on the side wall of the adsorption chamber, the second air guide groove extends along the first direction, and the second air guide groove is connected to the first air guide groove and the air vent.

[0008] As an optional embodiment, the second air guide groove penetrates the adsorption member along the first direction toward the surface of the air guide member, and the vacuum adsorption device also includes: a sealing member, which is arranged in the second air guide groove, and the free end of the sealing member has a preset distance from the bottom wall of the adsorption chamber along the first direction.

[0009] As an optional embodiment, the adsorbent also includes: at least one reflective groove formed on the side wall of the adsorption cavity, the reflective groove extending along a second direction, and the second direction intersecting with the first direction; along the first direction, the reflective groove is located on the side of the light blocking member away from the bottom wall of the adsorption cavity.

[0010] As an optional implementation, each reflective groove is connected to a vent.

[0011] As an optional embodiment, the vacuum adsorption device includes: a first limiting portion, the first limiting portion is formed on the side of the air guide member facing the adsorption member; a second limiting portion is formed on the side of the adsorption member facing the air guide member, and the second limiting portion cooperates with the first limiting portion.

[0012] As an optional implementation, the first limiting portion is constructed as a limiting groove, which is connected to the first air guide channel; the second limiting portion is constructed as a limiting protrusion, which is connected to the mounting portion.

[0013] As an optional embodiment, the vacuum adsorption device further includes: a first adhesive layer, arranged between the mounting portion and the first air guide channel; and / or a second adhesive layer, arranged between the light blocking member and the side wall or bottom wall of the adsorption cavity.

[0014] As an optional implementation, the adsorption component further includes: a suction nozzle, which is arranged at the adsorption port, and the suction nozzle extends along the first direction, and the suction nozzle is used to abut against the detection component.

[0015] As an optional embodiment, the cavity side wall also includes: a first cavity wall, a second cavity wall, a third cavity wall and a fourth cavity wall, and the first cavity wall, the second cavity wall, the third cavity wall and the fourth cavity wall enclose an adsorption cavity; at least one vent is respectively located in the first cavity wall, the second cavity wall, the third cavity wall and the fourth cavity wall.

[0016] As an optional implementation, at least one reflective groove is respectively located on the first cavity wall, the second cavity wall, the third cavity wall and the fourth cavity wall.

[0017] As an alternative embodiment, the light-blocking member is a non-transmissive member.

[0018] Compared with the prior art, the beneficial effects of the present application are as follows:

[0019] The vacuum adsorption device can stably adsorb the workpiece to be detected. When detecting the workpiece to be detected, the air vents on the side wall of the adsorption cavity will not appear in the detection image, preventing the influence of the light from the air vents on the detection image. At the same time, the light transmitted through the first air guide channel can be blocked by the light-blocking member, and the light-blocking member can provide a stable background for the detection image, making the difference between the detection image background and impurities and particles more obvious and clear, improving the reliability of the detection result of the workpiece to be detected, and thus improving the production efficiency and yield. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 Exploded structural schematic diagram of the vacuum adsorption device provided by the embodiment of the present application;

[0022] Figure 2 One of the structural schematic diagrams of the vacuum adsorption device provided by the embodiment of the present application;

[0023] Figure 3 For Figure 2 Cross-sectional schematic diagram along the A-A direction in

[0024] Figure 4 One of the structural schematic diagrams of the adsorbing member provided by the embodiment of the present application;

[0025] Figure 5 Another structural schematic diagram of the vacuum adsorption device provided by the embodiment of the present application;

[0026] Figure 6 Another structural schematic diagram of the adsorbing member provided by the embodiment of the present application.

[0027] Explanation of the reference numerals:

[0028] 100 - Vacuum adsorption device; 1 - Air guiding member; 101 - First air guiding channel; 102 - First limiting portion; 2 - Adsorbing member; 2a - Adsorption cavity; 21a - Cavity side wall; 21b - Cavity bottom wall; 201a - Venting port; 201 - Second air guiding channel; 202 - Mounting portion; 203 - Third air guiding channel; 204 - First air guiding groove; 205 - Second air guiding groove; 206 - Reflective groove; 207 - Second limiting portion; 3 - Light blocking member; 4 - Sealing member; 5 - Nozzle; X - First direction. Detailed implementation manner

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0030] In the present application, the orientation or positional relationship indicated by terms such as "upper", "lower", "top", "bottom", "inner", etc. is based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit that the indicated device, element or component must have a specific orientation, or be constructed and operated in a specific orientation.

[0031] Moreover, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present application can be understood according to the specific situation.

[0032] In addition, the terms "mount", "set", "provided with", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific situation.

[0033] In addition, terms such as "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated device, element or component. Unless otherwise specified, the meaning of "a plurality" is two or more.

[0034] With the continuous progress of mobile phone camera technology, cameras have evolved from single cameras to multi-cameras, from low-pixel to high-pixel, and to periscope lenses with high magnification optical zoom. The process difficulty in the camera manufacturing process is also gradually increasing. To meet market demands, manufacturers need to continuously research and develop more advanced camera production technologies. Glass with an infrared dielectric filter is an important component of the camera. During the camera production process, the glass bonding process is a very important link. The glass bonding needs to be carried out in a clean environment to ensure that there are no particles on the glass, and the glass also has an infrared cut-off filter to reduce the interference of infrared light on the image sensor and make the imaging closer to natural colors.

[0035] During the industrial inspection process, a white suction nozzle is generally used to manipulate the transparent glass. There is a round hole designed in the center of the suction nozzle. This round hole will cause some interference under light irradiation, making it easy for the detection device to misjudge when detecting particles on the glass. Specifically, the detection device may mistake the round hole in the center of the suction nozzle for a particle on the glass, thus affecting the accuracy of the detection result of the defects on the glass. This misjudgment may lead to some qualified glasses being wrongly judged as defective products, thereby affecting the production efficiency of the camera.

[0036] To solve the above problems, the inventor studied the limitations of the existing vacuum adsorption devices used for glass detection, improved the existing vacuum adsorption devices, and designed a vacuum adsorption device with small holes on the side walls around and no hole at the bottom in the middle, thereby preventing the hole at the bottom of the suction nozzle from affecting the accuracy of the detection result and achieving the purpose of improving the production quality and yield.

[0037] Based on this, the embodiments of the present application disclose a vacuum adsorption device, which can solve the problem that the hole at the bottom of the traditional vacuum adsorption device affects the accuracy of the detection result.

[0038] Next, the technical solutions of the present application will be further described in conjunction with the embodiments and the drawings.

[0039] Please refer to Figures 1 to 3 , Figure 1 which is the exploded structural schematic diagram of the vacuum adsorption device 100 provided by the embodiments of the present application, Figure 2 which is one of the structural schematic diagrams of the vacuum adsorption device 100 provided by the embodiments of the present application, Figure 3 is Figure 2The cross-sectional schematic diagram along the AA direction in the middle. The embodiment of the present application discloses a vacuum adsorption device 100, comprising: an air guide 1, the air guide 1 comprising a first air guide channel 101, one end of the air guide 1 is used to connect a vacuum generating device; an adsorbent 2, used to adsorb a to-be-detected part, the to-be-detected part is adsorbed on the adsorbent 2 along a first direction X, the adsorbent 2 is connected to the other end of the air guide 1, the adsorbent 2 comprises: an adsorption cavity 2a, formed in the adsorbent 2, the adsorption cavity 2a comprises an adsorption port, the adsorption port is connected to the outside; at least one vent 201a, formed in the cavity side wall 21a of the adsorption cavity 2a; at least one second air guide channel 201, each second air guide channel 201 is connected to a vent 201a, and each second air guide channel 201 is connected to the first air guide channel 101. The vacuum adsorption device 100 also includes a light blocking member 3, which is arranged on the adsorption member 2 and located in the adsorption chamber 2a. Along the first direction X, the light blocking member 3 is arranged on the side of the vent 201a away from the adsorption port, and the projection of the first air guide channel 101 along the first direction X is located in the light blocking member 3.

[0040] It can be understood that the vacuum adsorption device 100 generally has a length direction, a width direction and a height direction, the length direction is the extension direction of the long side of the adsorption member 2, and the width direction is the extension direction of the short side of the adsorption member 2. For the convenience of description, the embodiment of the present application refers to the height direction of the vacuum adsorption device 100 as the first direction X, and the length direction or width direction of the adsorption member 2 as the second direction.

[0041] For example, the second direction may intersect the first direction X. In some examples, the second direction may be perpendicular or approximately perpendicular to the first direction X. It is understandable that the second direction may be "approximately perpendicular" to the first direction X, that is, the angle between the second direction and the first direction X may be approximately equal to 90°, such as 88°, 89°, 91°, or 92°.

[0042] The air guide 1 can be configured as a tubular structure extending along the first direction X, one end of the air guide 1 is connected to the vacuum generating device, a first air guide channel 101 is provided inside the air guide 1, the first air guide channel 101 is connected to the vacuum generating device, and the first air guide channel 101 is used to transmit the negative pressure or positive pressure formed by the vacuum generating device to the adsorbent 2, so that the adsorbent 2 can adsorb or release the part to be detected. The part to be detected is a light-transmitting part, specifically, the part to be detected can be glass.

[0043] Optionally, the vacuum generating device may be a device such as a vacuum pump that can form a negative pressure or a positive pressure in the first air guiding channel 101 , and this embodiment of the present application does not limit this.

[0044] The adsorbing member 2 is used to adsorb the workpiece to be detected. The adsorbing member 2 is connected to the other end of the air guiding member 1. An adsorption cavity 2a is further formed in the adsorbing member 2. At least one air vent 201a is formed on the cavity side wall 21a of the adsorption cavity 2a. Each air vent 201a communicates with a second air guiding channel 201. A plurality of second air guiding channels 201 all communicate with a first air guiding channel 101 in the air guiding member 1. The first air guiding channel 101 transmits the positive pressure air flow or negative pressure air flow generated by the vacuum generating device to the second air guiding channels 201. The second air guiding channels 201 transmit the positive pressure air flow or negative pressure air flow to the adsorption cavity 2a, so that a positive pressure environment or a negative pressure environment can be formed in the adsorption cavity 2a.

[0045] When detecting the workpiece to be detected, the detecting device detects whether there are impurities, particles, etc. on the workpiece to be detected by taking pictures of the workpiece to be detected on the vacuum adsorption device 100. The detecting device captures the image at the bottom of the workpiece to be detected through the lens and the sensor, and the collected image is transmitted to the image processing system for image analysis. In this process, the image detection system needs to identify the impurities or particles in the image that are different from the background color, so as to identify whether the workpiece to be detected is qualified.

[0046] The air vent 201a is arranged on the side wall of the adsorbing member 2. It can be understood that when detecting the workpiece to be detected, the detecting device takes pictures of the workpiece to be detected. At this time, the air vent 201a arranged on the side wall will not be collected by the detecting device. The collected image does not include the air vent 201a. In this way, the light in the air vent 201a will not affect the detection result of the workpiece to be detected, ensuring the accuracy of the detection result of the workpiece to be detected.

[0047] The number of the second air guiding channels 201 can be determined according to the actual production situation. Optionally, each side wall of the adsorption cavity 2a can be provided with the second air guiding channels 201, so that the positive pressure air flow and negative pressure air flow generated by the second air guiding channels 201 can be transmitted to the adsorption cavity 2a more evenly, making the positive pressure environment or negative pressure environment inside the adsorption cavity 2a more stable, and improving the stability of the vacuum adsorption device 100 for adsorbing the workpiece to be detected.

[0048] The adsorption cavity 2a includes an adsorption port, and the adsorption port communicates with the external environment. The adsorption port can be in contact with the workpiece to be detected. When the vacuum adsorption device 100 needs to adsorb the workpiece to be detected, the vacuum generating device generates a negative pressure air flow, so that a negative pressure environment is formed inside the adsorption cavity 2a. The atmospheric pressure can generate an air pressure difference with the inside of the adsorption cavity 2a, so as to press the workpiece to be detected against the adsorption port, thus forming the "suction force" of the vacuum adsorption device 100 on the workpiece to be detected. When it is necessary to release the workpiece to be detected, the vacuum generating device generates a positive pressure air flow, so that the air pressure difference between the inside of the adsorption cavity 2a and the atmospheric pressure disappears, thus releasing the workpiece to be detected.

[0049] Specifically, when the vacuum adsorption device 100 needs to adsorb the workpiece to be detected, the vacuum generating device generates a negative pressure air flow and transmits it to the first air guiding channel 101. The first air guiding channel 101 transmits the negative pressure air flow to a plurality of second air guiding channels 201 on the cavity side wall 21a of the adsorption cavity 2a, so as to create a negative pressure environment in the adsorption cavity 2a communicated with the plurality of second air guiding channels 201. At this time, the workpiece to be detected located at the adsorption port will be adsorbed to the adsorbing member 2 due to the air pressure difference, thus completing the adsorption process of the vacuum adsorption device 100.

[0050] It can be understood that when the vacuum adsorption device 100 needs to release the workpiece to be detected, the flow direction of the gas is opposite to that during adsorption, which will not be elaborated here.

[0051] The vacuum adsorption device 100 further includes a light blocking member 3. The light blocking member 3 is located in the adsorption cavity 2a and is connected to the adsorbing member 2. Along the first direction X, the light blocking member 3 is arranged on the side of the air vent 201a away from the adsorption port, and the projection of the first air guiding channel 101 along the first direction X is located within the light blocking member 3, that is, when observing from the adsorption port towards the air vent 201a, the first air guiding channel 101 is blocked by the light blocking member 3.

[0052] It can be understood that when detecting the workpiece to be detected, the detection device takes a photo from the adsorption port towards the air vent 201a. Since the workpiece to be detected is a light transmissive member, the detection device can capture the interior of the adsorption cavity 2a. The light blocking member 3 can provide a stable shooting background for the detection device. At the same time, the light blocking member 3 blocks the light transmitted from the first air guiding channel 101 from being reflected into the adsorption cavity 2a, preventing the light in the first air guiding channel 101 from affecting the result of the light source detection, thereby ensuring the reliability of the detection result and improving the production efficiency.

[0053] Optionally, a sealed connection can be provided between the light blocking member 3 and the adsorbing member 2 to prevent air flow from leaking from the contact portion between the light blocking member 3 and the adsorbing member 2, which may affect the stability of the light blocking member 3 in the adsorbing member 2 and also affect the adsorption effect of the vacuum adsorption device 100.

[0054] Optionally, the adsorbing member 2 and the light blocking member 3 can be made of non-reflective materials to prevent the adsorbing member 2 and the light blocking member 3 from reflecting light and affecting the detection result of the workpiece to be detected. For example, the adsorbing member 2 can be made of undyed polyamide-imide 4203 material, and the undyed polyamide-imide 4203 generally presents a yellowish-brown color, and the light blocking member 3 can be made of black polyamide-imide material.

[0055] In this way, the vacuum adsorption device 100 can stably adsorb the workpiece to be detected. When detecting the workpiece to be detected, the air vent 201a on the cavity side wall 21a of the adsorption cavity 2a will not appear in the detection image, preventing the light from the air vent 201a from affecting the detection image. At the same time, the light transmitted through the first air guide channel 101 can be blocked by the light blocking member 3, and the light blocking member 3 can provide a stable detection image background, making the difference between the detection image background and impurities and particles more obvious and clear, improving the reliability of the detection result of the workpiece to be detected, thereby improving the production efficiency and yield.

[0056] Please refer to Figure 3 , in some embodiments, the adsorbing member 2 further includes a mounting portion 202. The mounting portion 202 is connected to the air guiding member 1, and at least a part of the mounting portion 202 can extend into the first air guide channel 101, so that the adsorbing member 2 is connected to the air guiding member 1. At least a part of the mounting portion 202 extending into the first air guide channel 101 can make the connection between the adsorbing member 2 and the air guiding member 1 more stable, preventing the adsorbing member 2 from shaking due to the influence of external force or air flow, and ensuring the stability of the adsorbing member 2 during the use of the vacuum adsorption device 100.

[0057] The adsorbing member 2 further includes a third air guide channel 203. At least a part of the third air guide channel 203 is formed in the mounting portion 202, and the third air guide channel 203 is communicated with the first air guide channel 101 and at least one second air guide channel 201. The third air guide channel 203 can transfer the positive pressure air flow or negative pressure air flow in the first air guide channel 101 to the second air guide channel 201. Since at least a part of the mounting portion 202 extends into the first air guide channel 101, the connection between the first air guide channel 101 and the third air guide channel 203 is located inside the first air guide channel 101, preventing air leakage from the connection between the first air guide channel 101 and the third air guide channel 203.

[0058] Optionally, a sealing member can be provided between the mounting portion 202 and the air guiding member 1. The sealing member can be an O-ring, a sealing adhesive, etc. The sealing member can prevent air leakage from between the mounting portion 202 and the air guiding member 1 from affecting the adsorption effect of the vacuum adsorption device 100.

[0059] The light blocking member 3 is arranged between the adsorption port and the third air guide channel 203. When detecting the workpiece to be detected, the detection device takes a picture along the first direction X from the adsorption port to the third air guide channel 203. At this time, the light blocking member 3 covers the third air guide channel 203, thereby blocking the light inside the third air guide channel 203 from being reflected into the adsorption cavity 2a and affecting the accuracy of the detection result of the workpiece to be detected.

[0060] Please refer to Figure 4 , Figure 4FIG. 0 is one of the schematic structural diagrams of the adsorbing member 2 provided in the embodiments of the present application. In some embodiments, the second air guide channel 201 includes a first air guide groove 204 formed on the bottom wall 21b of the adsorption cavity 2a. The first air guide groove 204 extends along the second direction towards the side wall 21a of the adsorption cavity 2a. The first air guide groove 204 communicates with the third air guide channel 203, so that the positive pressure air flow or negative pressure air flow inside the third air guide channel 203 can be transmitted into the first air guide groove 204.

[0061] The light-blocking member 3 covers the first air guide groove 204, thereby preventing the light inside the first air guide groove 204 from being reflected into the adsorption cavity 2a and affecting the accuracy of the detection result of the workpiece to be detected.

[0062] The second air guide channel 201 further includes a second air guide groove 205 formed on the side wall 21a of the adsorption cavity 2a. The second air guide groove 205 extends along the first direction X. One end of the second air guide groove 205 communicates with the first air guide groove 204, so that the positive pressure air flow or negative pressure air flow inside the first air guide groove 204 can be transmitted into the second air guide groove 205. The other end of the second air guide groove 205 communicates with the ventilation port 201a, so that the positive pressure air flow or negative pressure air flow inside the second air guide groove 205 can be transmitted into the adsorption cavity 2a through the ventilation port 201a, so as to form a positive pressure environment or a negative pressure environment inside the adsorption cavity 2a, thereby achieving the effect of adsorbing or releasing the workpiece to be detected.

[0063] Please refer to Figure 4 , in some embodiments, the second air guide groove 205 penetrates the surface of the adsorbing member 2 facing the air guide member 1 along the first direction X. The second air guide groove 205 penetrating the adsorbing member 2 along the first direction X can reduce the processing difficulty during the processing of the adsorbing member 2, thereby reducing the production cost of the adsorbing member 2.

[0064] It can be understood that when processing the second air guide groove 205 in the adsorbing member 2, it can be directly processed through from the surface of the adsorbing member 2 facing the air guide member 1 into the adsorption cavity 2a, such as stamping, milling, etc. In this way, the second air guide groove 205 penetrating the surface of the adsorbing member 2 facing the air guide member 1 can reduce the processing difficulty of the second air guide groove 205.

[0065] The vacuum adsorption device 100 further includes: a blocking member 4. The blocking member 4 is disposed in the second air guide groove 205. The free end of the blocking member 4 has a preset distance from the bottom wall 21b of the adsorption cavity 2a along the first direction X.

[0066] During the use of the vacuum adsorption device 100, the part of the second air guide groove 205 that is lower than the first air guide groove 204 does not play a role in transmitting positive or negative pressure airflows during the adsorption process of the vacuum adsorption device 100. The blocking member 4 is arranged at the part of the second air guide groove 205 that is lower than the first air guide groove 204 along the first direction X, which avoids the ineffective second air guide groove 205 from affecting the adsorption effect of the vacuum adsorption device 100. At the same time, it prevents air leakage from the second air guide groove 205, which may affect the adsorption effect of the vacuum adsorption device 100.

[0067] Please refer to Figure 4 , in some embodiments, the adsorbing member 2 further includes: at least one light reflecting groove 206 formed on the cavity side wall 21a of the adsorption cavity 2a. The light reflecting groove 206 extends along the second direction, and the second direction intersects with the first direction X; along the first direction X, the light reflecting groove 206 is located on the side of the light blocking member 3 away from the cavity bottom wall 21b of the adsorption cavity 2a.

[0068] The light reflecting groove 206 can evenly reflect the light inside the adsorption cavity 2a to the workpiece to be detected, improving the utilization rate of light and the brightness of the image, and reducing the influence of light on the detection result of the workpiece to be detected. Specifically, the groove wall of the light reflecting groove 206 can be designed into a surface with a specific angle and roughness to control the reflection direction and intensity of light.

[0069] In some embodiments, each light reflecting groove 206 communicates with an air vent 201a. Thus, while reflecting light, the light reflecting groove 206 can also transmit the positive or negative pressure airflow inside the second air guide channel 201 into the adsorption cavity 2a, improving the adsorption efficiency of the vacuum adsorption device 100.

[0070] Please refer back to Figure 3 , in some embodiments, the vacuum adsorption device 100 includes: a first limiting portion 102 formed on the side of the air guiding member 1 facing the adsorbing member 2; a second limiting portion 207 formed on the side of the adsorbing member 2 facing the air guiding member 1, and the second limiting portion 207 is in limiting cooperation with the first limiting portion 102.

[0071] The limiting cooperation between the second limiting portion 207 and the first limiting portion 102 can ensure that the adsorbing member 2 and the air guiding member 1 always maintain the correct positional relationship during the use of the vacuum adsorption device 100. The limiting cooperation between the first limiting portion 102 and the second limiting portion 207 helps to enhance the stability and reliability of the vacuum adsorption device 100, prevent air leakage caused by the misalignment of the adsorbing member 2 and the air guiding member 1, and prevent the adsorption failure of the workpiece to be detected or damage to the workpiece to be detected.

[0072] Optionally, the first limiting portion 102 and the second limiting portion 207 can be set as a limiting block cooperating with a limiting groove, or the first limiting portion 102 and the second limiting portion 207 can be set as a limiting pin cooperating with a limiting hole, or the first limiting portion 102 and the second limiting portion 207 can also be set as a magnetic member for magnetic adsorption and limiting cooperation. This embodiment does not make any limitation thereto.

[0073] Please refer to Figure 3 , in some embodiments, the first limiting portion 102 is configured as a limiting groove, and the limiting groove communicates with the first air guiding channel 101; the second limiting portion 207 is configured as a limiting protrusion, and the limiting protrusion is connected to the mounting portion 202.

[0074] It can be understood that the limiting groove is provided on the air guiding member 1, and the limiting protrusion is provided on the adsorption member 2. When the air guiding member 1 is combined with the adsorption member 2, the limiting protrusion will slide into the limiting groove to ensure the accurate relative position of the air guiding member 1 and the adsorption member 2. A stable connection can be formed between the limiting protrusion and the limiting groove to effectively resist external vibration or impact, prevent the adsorption member 2 and the air guiding member 1 from being misaligned or loosened during use, and prevent damage to the component to be detected due to adsorption failure or misalignment.

[0075] In addition, the cooperation between the limiting protrusion and the limiting groove enables the operator to easily align and install the air guiding member 1 and the adsorption member 2 in place. At the same time, when it is necessary to maintain or replace the air guiding member 1 or the adsorption member 2, the cooperation between the limiting protrusion and the limiting groove also facilitates quick disassembly and reinstallation.

[0076] Optionally, a sealing member can be provided between the limiting protrusion and the limiting groove to prevent gas from leaking between the limiting protrusion and the limiting groove and affecting the adsorption effect of the vacuum adsorption device 100. Among them, the sealing member can be a sealing ring, a sealing adhesive or a lubricating oil seal, etc.

[0077] In some embodiments, the second limiting portion 207 is configured as a limiting groove, and the limiting groove communicates with the first air guiding channel 101; the first limiting portion 102 is configured as a limiting protrusion, and the limiting protrusion is connected to the mounting portion 202, that is, the air guiding member 1 is provided with a limiting protrusion, and the adsorption member 2 is provided with a limiting groove.

[0078] In some embodiments, the vacuum adsorption device 100 further includes: a first bonding layer provided between the mounting portion 202 and the first air guiding channel 101; and / or a second bonding layer provided between the light blocking member 3 and the cavity side wall 21a or the cavity bottom wall 21b of the adsorption cavity 2a.

[0079] The setting of the first bonding layer can fix the mounting portion 202 inside the first air guiding channel 101, so as to fix the relative position of the air guiding member 1 and the adsorption member 2, and prevent the air guiding member 1 and the adsorption member 2 from being loosened or detached during the use of the vacuum adsorption device 100, which affects the adsorption effect of the vacuum adsorption device 100.

[0080] The first adhesive layer can also ensure a good seal at the connection between the installation part 202 and the first air guide channel 101, preventing gas from leaking at the abutting part between the installation part 202 and the first air guide channel 101, so as to ensure that an effective vacuum environment can be formed inside the adsorption cavity 2a, achieving the purpose of adsorbing the workpiece to be detected.

[0081] In addition, the first adhesive layer can also play a role in buffering and shock absorption, reducing damage to the air guide part 1 or the adsorption part 2 caused by the vibration of the vacuum adsorption device 100 or the flow of air.

[0082] The setting of the second adhesive layer can fix the light-blocking part 3 inside the adsorption cavity 2a, so that the relative position between the light-blocking part 3 and the adsorption part 2 is fixed, preventing the light-blocking part 3 from loosening or falling off due to the influence of air flow during the use of the vacuum adsorption device 100, which affects the detection result of the workpiece to be detected.

[0083] The second adhesive layer can also ensure a good seal at the connection between the light-blocking part 3 and the adsorption cavity 2a, preventing gas from leaking at the abutting part between the light-blocking part 3 and the adsorption cavity 2a, so as to ensure that a uniform vacuum environment can be formed inside the adsorption cavity 2a, achieving the purpose of stably adsorbing the workpiece to be detected.

[0084] In addition, the second adhesive layer can also play a role in buffering and shock absorption, reducing damage to the light-blocking part 3 or the adsorption part 2 caused by the vibration of the vacuum adsorption device 100 or the flow of air.

[0085] Please refer to Figure 5 and Figure 6 , Figure 5 FIG. 2 is a second schematic structural diagram of the vacuum adsorption device 100 provided by the embodiment of the present application, Figure 6 FIG. 3 is a second schematic structural diagram of the adsorption part 2 provided by the embodiment of the present application. In some embodiments, the adsorption part 2 further includes: a suction nozzle 5, which is arranged at the adsorption port, and the suction nozzle 5 extends along the first direction X, and the suction nozzle 5 is used to abut against the workpiece to be detected.

[0086] The suction nozzle 5 is arranged at the adsorption port and extends along the first direction X. The suction nozzle 5 can directly abut against the surface of the workpiece to be detected, so as to ensure that the adsorption force provided by the vacuum adsorption device 100 can directly act on the workpiece to be detected, ensuring the adsorption effect of the vacuum adsorption device 100.

[0087] Optionally, the shape and size of the suction nozzle 5 match the shape and size of the workpiece to be detected, so as to reduce the air leakage phenomenon between the suction nozzle 5 and the workpiece to be detected during the adsorption process, thereby further enhancing the adsorption effect of the vacuum adsorption device 100. Optionally, the material of the suction nozzle 5 can be polyamide resin, rubber, etc., to ensure that the suction nozzle 5 will not scratch or damage the workpiece to be detected during the adsorption process.

[0088] Please refer back to Figure 4 In some embodiments, the cavity sidewall 21a further includes: a first cavity wall, a second cavity wall, a third cavity wall, and a fourth cavity wall. The first cavity wall, the second cavity wall, the third cavity wall, and the fourth cavity wall enclose an adsorption cavity 2a; a vent 201a is respectively located on the first cavity wall, the second cavity wall, the third cavity wall, and the fourth cavity wall.

[0089] Specifically, each cavity sidewall 21a of the adsorption cavity 2a is provided with a vent 201a, and each vent 201a is connected to a second air guide channel 201, so that the positive pressure air flow or negative pressure air flow transmitted to the inside of the adsorption cavity 2a is more uniform, making the positive pressure environment or negative pressure environment inside the adsorption cavity 2a more stable, and also making the suction force exerted by the adsorption cavity 2a on the workpiece to be detected more uniform, ensuring that the workpiece to be detected will not be damaged due to uneven force, and improving the adsorption effect of the vacuum adsorption device 100.

[0090] In some embodiments, at least one light reflecting groove 206 is respectively located on the first cavity wall, the second cavity wall, the third cavity wall, and the fourth cavity wall. Specifically, each cavity sidewall 21a of the adsorption cavity 2a has at least one light reflecting groove 206, so as to ensure that the light that can be reflected by each cavity sidewall 21a passes through the reflection of the light reflecting groove 206, making the light on the workpiece to be detected more uniform and ensuring the reliability of the detection result of the workpiece to be detected.

[0091] In some embodiments, the light blocking member 3 is a non-transparent member, such as black polyamide resin. The adsorbing member 2 can also be made of a material that does not appear white in the detection image to ensure the accuracy and reliability of the detection result of the workpiece to be detected.

[0092] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A vacuum adsorption device (100), characterized in that, include: An air guide member (1), the air guide member (1) comprising a first air guide channel (101), one end of the air guide member (1) being used for connecting to a vacuum generating device; The adsorbent (2) is used to adsorb the object to be detected, the object to be detected is adsorbed on the adsorbent (2) along a first direction (X), the adsorbent (2) is connected to the other end of the air guide (1), and the adsorbent (2) comprises: An adsorption chamber (2a) is formed in the adsorption member (2), the adsorption chamber (2a) comprising an adsorption port, the adsorption port being in communication with the outside; at least one vent (201a) formed on a side wall (21a) of the adsorption chamber (2a); at least one second air guiding channel (201), each of the second air guiding channels (201) being connected to one of the air vents (201a), and each of the second air guiding channels (201) being connected to the first air guiding channel (101); A light blocking member (3) is arranged on the adsorption member (2) and is located in the adsorption chamber (2a); along the first direction (X), the light blocking member (3) is arranged on a side of the vent (201a) away from the adsorption port; and a projection of the first air guide channel (101) along the first direction (X) is located in the light blocking member (3).

2. The vacuum adsorption device (100) according to claim 1, characterized in that, The adsorption member (2) further comprises: A mounting portion (202), the mounting portion (202) being connected to the air guide member (1); A third air guiding channel (203), wherein the third air guiding channel (203) is at least partially formed on the mounting portion (202), the third air guiding channel (203) is connected to the first air guiding channel (101) and at least one of the second air guiding channels (201), and the light blocking member (3) covers the third air guiding channel (203).

3. The vacuum adsorption device (100) according to claim 2, characterized in that, The second air guiding channel (201) comprises: a first air guide groove (204) formed on the cavity bottom wall (21b) of the adsorption cavity (2a), the first air guide groove (204) extending toward the cavity side wall (21a) of the adsorption cavity (2a), the first air guide groove (204) being connected to the third air guide channel (203), and the light blocking member (3) covering the first air guide groove (204); A second air guide groove (205) is formed on the cavity side wall (21a) of the adsorption cavity (2a), the second air guide groove (205) extends along the first direction (X), and the second air guide groove (205) is connected to the first air guide groove (204) and the vent (201a).

4. The vacuum adsorption device (100) according to claim 3, characterized in that, The second air guide groove (205) penetrates the surface of the adsorbent (2) toward the air guide (1) along the first direction (X), and the vacuum adsorption device (100) further comprises: A blocking member (4), the blocking member (4) being arranged in the second air guide groove (205), the free end of the blocking member (4) having a preset distance from the bottom wall (21b) of the adsorption chamber (2a) along the first direction (X).

5. The vacuum adsorption device (100) according to claim 1, characterized in that, The adsorption member (2) further comprises: At least one light-reflecting groove (206) is formed on the cavity side wall (21a) of the adsorption cavity (2a), the light-reflecting groove (206) extends along a second direction, and the second direction intersects with the first direction (X); Along the first direction (X), the light-reflecting groove (206) is located on a side of the light-blocking member (3) away from the cavity bottom wall (21b) of the adsorption cavity (2a).

6. The vacuum adsorption device (100) according to claim 5, wherein Each of the light-reflecting grooves (206) communicates with one of the air vents (201a).

7. The vacuum adsorption device (100) according to claim 2, characterized in that, The vacuum adsorption device (100) comprises: A first limiting portion (102) formed on a side of the air guiding member (1) facing the adsorbing member (2); A second limiting portion (207) formed on a side of the adsorbing member (2) facing the air guiding member (1), and the second limiting portion (207) is in limiting cooperation with the first limiting portion (102).

8. The vacuum adsorption device (100) according to claim 7, wherein The first limiting portion (102) is configured as a limiting groove, and the limiting groove communicates with the first air guiding channel (101); The second limiting portion (207) is configured as a limiting protrusion, and the limiting protrusion is connected to the mounting portion (202).

9. The vacuum adsorption device (100) according to claim 2, characterized in that, The vacuum adsorption device (100) further comprises: A first bonding layer disposed between the mounting portion (202) and the first air guiding channel (101); and / or A second bonding layer disposed between the light-blocking member (3) and the cavity side wall (21a) or the cavity bottom wall (21b) of the adsorption cavity (2a).

10. The vacuum adsorption device (100) according to any one of claims 1 to 9, characterized in that, The adsorbing member (2) further comprises: A suction nozzle (5) disposed at the adsorption port, the suction nozzle (5) extends along the first direction (X), and the suction nozzle (5) is used for abutting against the workpiece to be detected.

11. The vacuum adsorption device (100) according to claim 5, characterized in that, The cavity side wall (21a) further comprises: A first cavity wall, a second cavity wall, a third cavity wall and a fourth cavity wall, and the first cavity wall, the second cavity wall, the third cavity wall and the fourth cavity wall enclose the adsorption cavity (2a); At least one of the air vents (201a) is respectively located on the first cavity wall, the second cavity wall, the third cavity wall and the fourth cavity wall.

12. The vacuum adsorption device (100) according to claim 11, wherein At least one of the light-reflecting grooves (206) is respectively located on the first cavity wall, the second cavity wall, the third cavity wall and the fourth cavity wall.

13. The vacuum adsorption device (100) according to any one of claims 1 to 9, characterized in that, The light-blocking member (3) is a non-light-transmitting member.

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