CN217212303U - Appearance detection device - Google Patents

Abstract

The embodiment of the utility model discloses outward appearance detection device, include: the conveying table is used for conveying the object to be detected; the CCD detection cameras are arranged adjacent to the conveying table and used for shooting the object to be detected, the CCD detection cameras comprise a first CCD detection camera and a second CCD detection camera, the second CCD detection camera is located at the downstream of the first CCD detection camera along the conveying direction of the conveying table, and the shooting direction of the second CCD detection camera is different from that of the first CCD detection camera; a light source disposed adjacent to the transfer table for providing illumination conditions; and the controller is electrically connected with the first CCD detection camera and the second CCD detection camera and used for controlling the first CCD detection camera and the second CCD detection camera to shoot the object to be detected from different angles and receiving the shot images. By the aid of the mode, automatic detection of the appearance of the object to be detected is achieved, and appearance detection efficiency is effectively improved.

Description

Appearance detection device

[ technical field ] A method for producing a semiconductor device

The embodiment of the utility model provides a relate to technology technical field, especially relate to an outward appearance detection device.

[ background of the invention ]

In the process production, the products on the production line are usually required to be subjected to appearance inspection so as to prevent the products with poor appearance from flowing into the market and being bought by consumers to be complained, thereby influencing the market share of the product production manufacturers.

At present, most of appearance inspection of products on a production line adopts manual visual inspection, and the detection mode has low efficiency and wastes time and labor.

[ Utility model ] A method for manufacturing a semiconductor device

To solve the above technical problem, some embodiments of the present application provide an appearance detection apparatus, which aims to realize automatic detection of product appearance and improve the appearance detection efficiency of products.

An appearance inspection device comprising:

the conveying table is used for conveying the object to be detected;

a plurality of CCD detection cameras installed adjacent to the transfer table, the CCD detection cameras being used to photograph the object to be inspected, the plurality of CCD detection cameras including a first CCD detection camera and a second CCD detection camera, the second CCD detection camera being located downstream of the first CCD detection camera in a transfer direction of the transfer table, and a photographing direction of the second CCD detection camera being different from a photographing direction of the first CCD detection camera;

a light source disposed adjacent to the transfer table for providing illumination conditions; and

and the controller is electrically connected with the first CCD detection camera and the second CCD detection camera and used for controlling the first CCD detection camera and the second CCD detection camera to shoot the object to be detected from different angles and receiving shot images.

In one of them embodiment, still include the lamp house, a part of conveying platform is located in the lamp house, the lamp house is provided with first conveying opening and second conveying opening along the direction of transfer of conveying platform to make the article of waiting to examine can pass through the lamp house through first conveying opening and the second conveying opening.

In one embodiment, the shooting directions of the first CCD detection camera and the second CCD detection camera are opposite to different surfaces of the object to be detected.

In one embodiment, the shooting direction of at least one CCD detection camera is perpendicular to the conveying direction of the conveying table.

In one embodiment, at least one of the CCD detection cameras is positioned above the transfer table so that its lens is directed toward the transfer table.

In one embodiment, the plurality of CCD detection cameras are configured such that an angle between a shooting direction of each CCD detection camera and a conveying direction of the conveying table is the same, and a product of the number of the CCD detection cameras and the angle is equal to 360 degrees.

In one embodiment, the number of CCD detection cameras includes six, and the included angle includes 60 degrees.

In one embodiment, the sections of the transfer table in the light box are arranged in a straight line or an arc, and the CCD detection cameras are arranged on two sides of the sections.

In one embodiment, the CCD detection cameras have the same installation height.

In one embodiment, the light source is mounted to the roof of the light box.

The outward appearance detection device that this application embodiment provided through set up a plurality of CCD detection cameras near conveying platform, and a plurality of CCD detection cameras set up in different positions and have different shooting directions along conveying platform's direction of transfer to the different angles of waiting to examine the thing are examined in the shooting. The CCD detection cameras are respectively electrically connected with the controller to send respective shot images to the controller, and the controller processes the shot images according to a preset algorithm and judges whether the appearance of the object to be detected meets the requirements or not so as to identify the object to be detected with poor appearance. Therefore, compare in present artifical visual outward appearance detection mode, the outward appearance detection device that this application embodiment provided can realize automated inspection, effectively improves detection efficiency.

[ description of the drawings ]

One or more embodiments are illustrated in drawings corresponding to, and not limiting to, the embodiments, in which elements having the same reference number designation may be represented as similar elements, unless specifically noted, the drawings in the figures are not to scale.

Fig. 1 is a schematic perspective view of an appearance inspection apparatus according to an embodiment of the present invention in one direction;

FIG. 2 is a perspective view of the appearance inspection apparatus of FIG. 1 in another orientation;

FIG. 3 is a schematic perspective view of the visual inspection device of FIG. 1 in one direction after hiding the light box;

fig. 4 is a schematic perspective view of the lamp box hidden in the appearance inspection according to the second embodiment of the present invention in one direction;

fig. 5 is a schematic perspective view of an appearance detecting device according to another embodiment of the present invention in one direction.

[ detailed description ] A

In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is referred to as being "fixed to" or "affixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "upper", "lower", "left", "right", "inner", "outer" and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

In the embodiment of the present invention, the "mounting" includes welding, screwing, clamping, bonding, etc. to fix or limit a certain element or device to a specific position or place, the element or device can be kept still or can move within a limited range at the specific position or place, and the element or device can be detached or not detached after being fixed or limited to the specific position or place, which is not limited in the embodiment of the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Referring to fig. 1 and 2, fig. 1 and 2 respectively show a perspective view of an appearance inspection apparatus 100 according to an embodiment of the present invention in two directions. The appearance inspection apparatus includes a support 10, a light box 20, a transfer table 30 and a controller (not shown), wherein the transfer table 30 is supported on the support 10, has a proximal end 31 and a distal end 32 opposite to each other, and can transfer the object 40 to be inspected from the proximal end 31 to the distal end 32; the light box 20 is provided with a first conveying opening 21 and a second conveying opening 22 along the conveying direction of the conveying table 30, a part of the conveying table 30 is disposed in the light box 20, and the object 40 to be detected can enter the light box 20 from the first conveying opening 21 and pass out of the light box 20 from the second conveying opening 22 under the conveying action of the conveying table 30.

Referring to fig. 3, fig. 3 is a perspective view of the appearance detecting device after hiding the light box 20. The light box 20 is provided with a CCD detection camera 23 which is electrically connected with a controller, and the controller can control the shooting time of the CCD detection camera. Specifically, the controller presets and stores the distance from the initial conveying position of the conveying table to the CCD detection camera 23, and the conveying speed of the conveying table 30 is fixed, so that the controller can calculate the time for the object 40 to be inspected to be conveyed to the position of the CCD detection camera 23 according to the distance and the conveying speed of the conveying table 30, thereby controlling the shooting time of the CCD detection camera 23.

When the object 40 to be detected is placed on the conveying table 30, the conveying table 30 conveys the object 40 to be detected into the lamp box 20 through the first conveying opening 21 of the lamp box 20, and when the object 40 to be detected moves to the position of the CCD detection camera 23, the CCD detection camera 23 shoots the object 40 to be detected, and sends the shot image to the controller, the controller processes the shot image according to a preset algorithm, judges whether the appearance of the object 40 to be detected meets the requirement, so as to identify the object 40 to be detected with poor appearance, and screens the object 40 to be detected with poor appearance when the object 40 to be detected is conveyed out of the lamp box 20 through the second conveying opening 22 of the lamp box 20. Therefore, compare and carry out the outward appearance in present artifical visual to waiting to examine thing 40 and detect, the embodiment of the utility model provides an outward appearance detection device 100 can realize automatic detection, effectively improves detection efficiency.

Further, since the light box 20 only has the first transmitting opening 21 and the second transmitting opening 22, and the other parts in the light box 20 are closed, external light can only enter the light box 20 through the first transmitting opening 21 and the second transmitting opening 22, which causes insufficient light in the light box 20 to affect the shooting quality of the CCD detection camera. Therefore, a light source (not shown) for providing uniform illumination in the light box 20 is further disposed in the light box 20, and preferably, the light source is disposed at the top of the light box 20. It is easy to understand that, when the light source is disposed on the top of the light box 20, the light source can emit light from top to bottom, which is beneficial to uniform illumination inside the light box 20. In other embodiments of the present invention, the light source may be directly provided near the CCD detection camera 23 or the transfer stage 30 without providing the light box 20. The light box 20 is arranged in the embodiment, and then the light source is arranged in the light box 20, so that the light of the light source is concentrated, and the light is more uniform.

It should be noted that, in the appearance inspection apparatus 100 provided in the first embodiment, only one CCD inspection camera 23 is disposed in the light box 20, so that the appearance inspection apparatus can only inspect one specific appearance position of the sample 40, but cannot inspect the whole appearance of the sample 40.

Referring to fig. 4, fig. 4 is a schematic perspective view of the appearance detecting device according to the second embodiment of the present invention after hiding the light box 20a in one direction. Similar to the first embodiment, the appearance inspection apparatus 200 of the second embodiment also includes a light box 20a, a support table 10a, a conveying table 30a and a controller, a portion of the conveying table 30a is disposed in the light box 20a, the light box 20a is provided with a first conveying opening 21a and a second conveying opening 22a along a conveying direction of the conveying table 30a, and the object 40a can enter the light box 20a from the first conveying opening 21a and pass out of the light box 20a from the second conveying opening 22a under the conveying action of the conveying table 30 a. Unlike the first embodiment, the second embodiment includes a plurality of CCD detection cameras 23 a.

The plurality of CCD detection cameras 23a are disposed at different positions near the conveying table 30a, so that the plurality of CCD detection cameras 23a have different photographing directions, and specifically, the plurality of CCD detection cameras 23a are disposed along the conveying direction of the conveying table 30a, and the plurality of CCD detection cameras 23a are respectively electrically connected to the controller, and according to the description of the first embodiment, the controller can control the photographing time of the CCD detection cameras 23a, so that the plurality of CCD detection cameras 23a are disposed along the conveying direction of the conveying table 30a, so that the controller can control the different CCD detection cameras 23a to photograph according to the object to be inspected at different positions of the conveying table 30. The placement position of each CCD detection camera 23a is arranged to be capable of correspondingly photographing one of the angles of the object 40a, for example, the number of the CCD detection cameras 23a in this embodiment is 6, and the 6 CCD detection cameras 23a respectively correspond to one of the angles of the object 40a, so that the 6 CCD detection cameras 23a can photograph 6 angles of the object 40a in total, compared with the appearance detection apparatus 100 in the first embodiment, the appearance detection apparatus 200 in this embodiment can photograph a plurality of angles of the object 40a, thereby expanding the detection range.

Further, in order to enable the CCD detection cameras 23a to photograph the overall side appearance of the specimen 40a, the 6 CCD detection cameras 23a are respectively arranged such that an angle 231a between a photographing direction of each CCD detection camera 23a and a conveying direction of the conveying table 30a is the same, as shown in fig. 4, the photographing direction is S1, and the conveying direction is R1. In this embodiment, the included angle is 60 degrees (as shown in fig. 2), so that the 6 cameras can shoot a 360-degree shooting range in total, and then the 6 CCD detection cameras 23a can shoot the whole side surface appearance of the object to be detected 40 a.

When the object 40a is placed on the transferring table 30a, the transferring table 30a transfers the object 40a into the lamp box 20a through the first transferring opening 21, and the controller controls the 6 CCD detecting cameras 23a to sequentially photograph the object 40, for example, a first angle at which the first CCD detecting camera 23a photographs the object 40a, a second angle at which the second CCD detecting camera 23a photographs the object 40a, and so on, when the object 40a passes through the last CCD detecting camera 23a, the entire side surface appearance of the object 40a is photographed. Each CCD detection camera 23a sends the photographed image to the controller, and the controller processes the photographed image according to a preset algorithm, determines whether the appearance of the object 40a meets the requirements, so as to identify the object 40a with poor appearance, and screens the object 40a with poor appearance when it is conveyed out of the light box 20a through the second conveying opening 22a of the light box 20 a.

As a specific application scenario, the object to be detected 40a may be a cartridge for an electronic cigarette, an atomizable liquid (not shown) is generally stored in the cartridge, an electrode elastic piece (not shown) for electrically connecting with a power unit of the electronic cigarette and a heating assembly (not shown) for heating the liquid are installed in the cartridge, and the power unit provides electric energy for the heating assembly in the cartridge through the electrode elastic piece, so that the heating assembly heats and atomizes the liquid to generate aerosol. The CCD detection camera 23a can detect the appearance indexes such as damage and the presence of stains on the entire side surface of the cartridge, but it is necessary to detect whether the indexes of specific dimensions such as the liquid level and the elastic electrode meet the requirements for the cartridge.

Therefore, in another embodiment of the present invention, as shown in fig. 5, CCD detecting cameras 24a and 25a are further disposed outside the light box 20a, wherein the CCD detecting camera 24a is located above the transferring table 30a and its lens faces the transferring table 30a, and the CCD detecting camera 25a is configured to shoot at a direction perpendicular to the transferring direction of the transferring table 30 a. CCD detects camera 24a and is used for shooing the tip of cigarette bullet, and the electrode shell fragment of cigarette bullet is installed in the tip of cigarette bullet usually, consequently detects camera 24a through CCD and can detect whether the electrode shell fragment of cigarette bullet has the installation or whether there is the clearance of electrode shell fragment installation, if there is the clearance to lead to the electrode shell fragment not hard up easily, detects camera 24a through CCD and can sieve out the cigarette bullet that the electrode shell fragment installation is not conform to the requirements.

The CCD detection camera 25a is used to photograph the liquid level of the cartridge, and the shell of the cartridge is usually transparent, so that the user can observe the height of the tobacco juice inside through the transparent shell, thereby determining the remaining amount of the tobacco juice. The height of the tobacco liquid is generally set to a specific height by a manufacturer when the tobacco liquid leaves a factory, so that whether the height of the tobacco liquid in the cartridge meets the requirement needs to be checked. Because the shooting direction of the CCD detection camera 25a is perpendicular to the conveying direction of the conveying table 30a, the front of the cigarette cartridge can be shot, the shooting from the front is beneficial to judging the accurate height of the cigarette liquid, and the shooting from the side has errors due to the problem of the visual angle. Simultaneously, CCD detects the camera still can be used to openly shoot the radium carving information of cigarette bullet to judge whether radium carving information is complete, whether have the information of leaking the carving.

It is understood that in other embodiments of the present invention, the number of the CCD detection cameras 23a may be set to other numbers, for example, 8, or 4. Correspondingly, an included angle between the shooting direction of each CCD detection camera 23a and the conveying direction of the conveying table 30a needs to be adjusted, and when the number of the CCD detection cameras 23a is 8, the included angle is set to 45 degrees correspondingly; and when the number of CCD detections is set to 4, the included angle is correspondingly set to 90 degrees. It is only necessary that the product of the number of CCD detection cameras 23ad and the angle be 360 degrees. However, setting 8 increases the number of CCD detection sums 23a, resulting in an increase in detection cost; on the other hand, if 4 CCD detection cameras 23a are provided, the range of each CCD detection camera 23a to be photographed is enlarged due to the too small number of CCD detection cameras 23a, which results in poor photographing effect, and therefore, it is preferable to provide 6 CCD detection cameras 23 a.

Further, in the present embodiment, the section of the conveying table 30a located on the light box 20a is linear, and in order to ensure that the 6 CCD detection cameras 23a can capture the appearance of the whole side surface of the object to be inspected 40a, it is preferable to arrange the 6 CCD detection cameras 23a on both sides of the conveying table 30a, and the number of the CCD detection cameras 23a on each side is the same, for example, in the present embodiment, 3 CCD detection cameras 23a are respectively arranged on both sides of the conveying table 30 a. It is worth mentioning that, in other embodiments of the present invention, the number of the CCD detection cameras 23a on both sides of the conveying platform 30a may be inconsistent, for example, when the section of the conveying platform 30a located on the light box 20a is arc-shaped, because the arc has a certain radian, when the object to be inspected 40a is conveyed on the arc-shaped conveying platform 30a, the direction of the same appearance surface of the object to be inspected 40a may also be changed at any time along with the conveyance of the arc-shaped conveying platform 30a, and thus the number of the CCD detection cameras 23a arranged on both sides of the arc-shaped conveying platform 30a may be inconsistent.

Further, in order to facilitate the controller to analyze the image captured by each CCD detection camera 23a according to a preset algorithm, the inspection object 40a with a bad appearance is identified. The mounting height of each CCD detection camera 23a is the same. The installation heights are the same, and when each CCD detection camera 23a shoots the object to be detected 40a, although the angles of the object to be detected shot by each CCD detection camera 23a are different, the sizes of the images of the object to be detected 40a shot by the CCD detection cameras 40a at the respective angles are the same, which is convenient for the controller to recognize according to the preset algorithm.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; within the idea of the invention, also technical features in the above embodiments or in different embodiments can be combined, steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. An appearance inspection device, comprising:

the conveying table is used for conveying the object to be detected;

a plurality of CCD detection cameras installed adjacent to the transfer table, the CCD detection cameras being used to photograph the object to be inspected, the plurality of CCD detection cameras including a first CCD detection camera and a second CCD detection camera, the second CCD detection camera being located downstream of the first CCD detection camera in a transfer direction of the transfer table, and a photographing direction of the second CCD detection camera being different from a photographing direction of the first CCD detection camera;

a light source disposed adjacent to the transfer table for providing illumination conditions; and

and the controller is electrically connected with the first CCD detection camera and the second CCD detection camera and used for controlling the first CCD detection camera and the second CCD detection camera to shoot the object to be detected from different angles and receiving shot images.

2. The appearance inspection device of claim 1, further comprising a light box, a portion of the transfer table being positioned in the light box, the light box being provided with a first transfer opening and a second transfer opening along a transfer direction of the transfer table so that the object to be inspected can pass through the light box through the first transfer opening and the second transfer opening.

3. The appearance inspection device according to claim 1, wherein the first and second CCD detection cameras are directed to face different surfaces of the object to be inspected.

4. The appearance inspection device according to claim 1, wherein a photographing direction of at least one of the CCD detection cameras is perpendicular to a conveying direction of the conveying table.

5. The appearance inspection device according to claim 1, wherein at least one of the CCD inspection cameras is located above the transfer stage so that a lens thereof faces the transfer stage.

6. The appearance inspection device according to claim 1, wherein a plurality of the CCD detection cameras are configured such that an angle between a photographing direction of each of the CCD detection cameras and a conveying direction of the conveying table is the same, and a product of the number of the CCD detection cameras and the angle is equal to 360 degrees.

7. The visual inspection device of claim 6, wherein the number of CCD detection cameras comprises six and the included angle comprises 60 degrees.

8. The appearance inspection device according to claim 2, wherein the sections of the transfer table located in the light box are arranged in a straight line or an arc, and the plurality of CCD detection cameras are arranged on both sides of the sections.

9. The appearance inspection device according to claim 1, wherein the plurality of CCD inspection cameras have the same installation height.

10. The appearance inspection device according to claim 2, wherein the light source is mounted on a roof of the light box.

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