Product appearance detection equipment

Abstract

The utility model relates to product appearance detection equipment which comprises a first detection unit and a second detection unit, the first detection unit comprises a rotary table capable of rotating around the central axis of the first detection unit, and the rotary table is sequentially provided with a feeding station, a first detection station and a first transfer station in the circumferential direction of the rotary table; each first detection station is correspondingly provided with a first detection mechanism; the second detection unit comprises a linear module and a carrying table movably arranged on the linear module, the linear module is sequentially provided with a second transfer station, a plurality of second detection stations and a discharging station in the extending direction of the linear module, and the second transfer station is adjacent to the first transfer station; and each second detection station is correspondingly provided with a second detection mechanism. Only one device can replace a plurality of devices to detect all different surfaces of a product, so that the occupied area of the device is small, and the detection cost is saved; and the automation degree of the equipment is high, manual product contact is not needed, and the detection efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of electronic product testing, and in particular to a product appearance testing device. Background Art

[0002] In recent years, with the rapid popularization of electronic products, consumers have increasingly higher requirements for the appearance of electronic products. However, during the production process of electronic products, due to factors such as process or materials, many process defects in appearance will occur.

[0003] Traditional inspection methods rely on manual visual inspection of defective items using a magnifying glass, resulting in low inspection efficiency and a high false positive rate, leading to ineffective control of product quality. Of course, AOI inspection equipment (also known as optical inspection equipment) can also be used to detect product appearance defects. This means using optical characteristics to extract product images and perform image analysis to detect whether there are defects in the product's appearance. However, most AOI inspection equipment currently on the market is a single-station, single-site structure. If all surfaces of a product need to be inspected, multiple AOI inspection equipment must be configured for inspection, which not only takes up a large amount of space but also increases inspection costs. Utility Model Content

[0004] Based on this, the purpose of this application is to provide a product appearance inspection device to solve the problem of low inspection efficiency and high false detection rate caused by relying on manual inspection in the existing technology, as well as the problem that when using existing AOI inspection equipment, the equipment occupies a large space and the inspection cost is high.

[0005] According to one aspect of the present application, there is provided a product appearance inspection device, comprising a first inspection unit and a second inspection unit;

[0006] The first detection unit includes a turntable that can rotate around its central axis, and the first detection unit is sequentially provided with a loading station, a plurality of first detection stations and a first transfer station along the circumferential direction of the turntable, and each of the first detection stations is respectively provided with a first detection mechanism;

[0007] The second detection unit includes a linear module and a carrier movably arranged on the linear module, and the second detection unit is sequentially provided with a second transfer station, several second detection stations and a blanking station along the direction of extension of the linear module. The second transfer station is arranged adjacent to the first transfer station, and each second detection station is respectively provided with a second detection mechanism.

[0008] In one embodiment, each of the first detection mechanisms and each of the second detection mechanisms respectively has a detection camera, which can be controllably translated in the horizontal direction, and / or can be controllably raised and lowered in the vertical direction, and / or can be controllably rotated around an axis extending in the horizontal direction.

[0009] In one embodiment, each of the first detection mechanisms and each of the second detection mechanisms further comprises a light source, and the light source can be controllably moved independently relative to the detection camera and / or can be moved together with the detection camera.

[0010] In one embodiment, the light source is a ring-shaped light source.

[0011] In one embodiment, at least one of the light sources includes a plurality of light bars, and the plurality of light bars are arranged around a central axis of the detection camera, and each of the light bars can be controllably rotated around an axis extending along its own length direction.

[0012] In one embodiment, there are two second detection units, and the two second detection units are symmetrically arranged in the horizontal direction. At least one second detection mechanism of each second detection unit can be controllably moved closer to or farther away from the corresponding second detection mechanism of another second detection unit.

[0013] In one embodiment, the appearance inspection equipment also includes a first transfer mechanism, which includes a first transfer module and a first grabbing member arranged on the first transfer module. The first grabbing member can transfer the product from the first transfer station to the second transfer station under the drive of the first transfer module.

[0014] In one embodiment, the loading station is provided with a loading unit, and the loading unit includes a feeding mechanism and a robot arranged adjacent to each other, and the robot is used to transfer the product from the feeding mechanism to the turntable.

[0015] In one embodiment, the unloading station is provided with a unloading unit, and the unloading unit includes a second transfer mechanism and an unloading mechanism arranged adjacent to each other, and the second transfer mechanism includes a second transfer module and a second grabbing member arranged on the second transfer module, and the second grabbing member is used to transfer the qualified product from the carrier to the unloading mechanism.

[0016] In one embodiment, an NG discharge unit is further provided next to the second detection unit, and the NG discharge unit includes a third transfer mechanism and an NG discharge mechanism, and the third transfer mechanism is used to transfer the products that fail the inspection from the carrier to the NG discharge mechanism.

[0017] The above-mentioned product appearance inspection equipment is provided with a turntable that can rotate around its own central axis in the first inspection unit, and the turntable is sequentially provided with a loading station, several inspection stations and a first transfer station along its own circumferential direction, and each first inspection station is respectively provided with a corresponding first inspection mechanism; and the linear module of the second inspection unit is sequentially provided with a second transfer station adjacent to the first transfer station along its own extension direction, and each second inspection station is respectively provided with a second inspection mechanism, so that the turntable can carry the product around its own central axis and pass through the loading station and all the first inspection stations in sequence to reach the first transfer station, and then the linear module can drive the carrier to carry the product through the second transfer station and all the second inspection mechanisms in sequence to reach the unloading station, thereby realizing that only one device is needed to replace multiple devices to inspect all different surfaces of the product, so that the equipment site occupies less space and saves inspection costs; and realizes the functions of automatic loading and unloading and simultaneous online inspection of multiple products at multiple stations, so the equipment has a high degree of automation, no manual contact with the product is required, and the inspection efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a top view of a product appearance inspection device provided in one embodiment of the present application.

[0019] Figure 2 This is a top view of the first detection unit in the product appearance inspection device provided in one embodiment of the present application.

[0020] Figure 3 This is an isometric view of the second inspection unit in the product appearance inspection device provided in one embodiment of the present application.

[0021] Figure 4 This is an axial side view of the first detection mechanism A in the product appearance inspection equipment provided in one embodiment of the present application.

[0022] Figure 5 This is an axial side view of the first detection mechanism B in the product appearance inspection equipment provided in one embodiment of the present application.

[0023] Figure 6 This is an axial side view of the first detection mechanism C in the product appearance inspection equipment provided in one embodiment of the present application.

[0024] Figure 7 This is an axial side view of a light source in one of the first detection mechanisms provided in one embodiment of the present application.

[0025] Description of reference numerals:

[0026] 10. Product appearance inspection equipment; 100. First inspection unit; 101. Loading station; 102. First inspection station; 103. First transfer station; 110. Turntable; 120. First inspection mechanism; 121. First inspection mechanism A; 122. First inspection mechanism B; 123. First inspection mechanism C; 124. First inspection mechanism D; 125. Inspection camera; 126. Light source; 1261. Light bar; 127. Camera moving axis; 128. Auxiliary rail; 200. Second inspection unit; 201. The second transfer station; 202, the second inspection station; 203, the unloading station; 210, the linear module; 220, the carrier; 230, the second inspection mechanism; 231, the second inspection mechanism A; 232, the second inspection mechanism B; 300, the first transfer mechanism; 400, the loading unit; 410, the feeding mechanism; 420, the robot; 500, the unloading unit; 510, the second transfer mechanism; 520, the unloading mechanism; 600, the NG discharge unit; 610, the third transfer mechanism; 620, the NG discharge mechanism. DETAILED DESCRIPTION

[0027] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0028] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0029] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0030] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0031] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0032] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0033] The present application provides a product appearance inspection device, which is used to perform optical inspection on products to determine whether there are defects on the surface of the products, so that products with surface defects can be promptly removed when leaving the factory to prevent products with surface defects from entering the market.

[0034] The following describes the structure of the product appearance inspection device in this application, taking the AOI inspection device as an example. This embodiment is merely an example and does not limit the technical scope of this application. It is understood that in other embodiments, the product appearance inspection device of this application can be any product appearance inspection device other than the AOI inspection device, and the product appearance inspection device of this application can also be used to detect whether any product has defects on its surface, without limitation here.

[0035] See Figure 1, Figure 1 FIG1 shows a top view of a product appearance inspection device 10 provided in an embodiment of the present application. The product appearance inspection device 10 provided in an embodiment of the present application includes a first inspection unit 100 and a second inspection unit 200. Figure 2 As shown, the first detection unit 100 includes a turntable 110 that can rotate around its own central axis, and the first detection unit 100 is provided with a loading station 101, a plurality of first detection stations 102 and a first transfer station 103 in sequence along the circumferential direction of the turntable 111, and each first detection station 102 is respectively provided with a first detection mechanism 120; Figure 3 As shown, the second detection unit 200 includes a linear module 210 and a carrier 220 movably arranged on the linear module 210, and the second detection unit 200 is sequentially provided with a second transfer station 201, a plurality of second detection stations 202 and a blanking station 203 along the direction extending along the linear module 210. The second transfer station 201 is adjacent to the first transfer station 103, and each second detection station 202 is respectively provided with a second detection mechanism 230.

[0036] The turntable 110 can be controlled (for example, driven by a motor) to carry the product around its own central axis and pass through the loading station 101 and all the first inspection stations 102 in sequence to reach the first transfer station 103. The linear module 210 can drive the carrier 220 to carry the product and pass through the second transfer station 201 and all the second inspection mechanisms 230 in sequence to reach the unloading station 203, so that all the first inspection mechanisms 120 and all the second inspection mechanisms 230 can perform appearance inspection on different parts of the product respectively.

[0037] Specifically, if Figure 1 and Figure 2 As shown, in the embodiment shown in the figure, the first detection unit 100 is provided with four first detection stations 102, and therefore also correspondingly provided with four first detection mechanisms 120, the four first detection mechanisms 120 are defined herein as a first detection mechanism A121, a first detection mechanism B122, a first detection mechanism C123 and a first detection mechanism D124; Figure 1 and Figure 3 As shown, the second inspection unit 200 is provided with two second inspection stations 202 , and thus is also provided with two second inspection mechanisms 230 , which are respectively defined as a second inspection mechanism A 231 and a second inspection mechanism B 232 .

[0038] from Figure 2 As can be seen from the figure, the structures of the first detection mechanism A121 and the first detection mechanism D124 are substantially the same, so Figures 4 to 6 Only the schematic diagrams of the first detection mechanism A121 to the first detection mechanism C123 are shown. Figures 4 to 6 It can be seen that each of the first detection mechanism 120 and the second detection mechanism 230 has a detection camera 125, which is used to take pictures of the product, so that it can detect whether the product has defects based on the results of the picture, and the detection camera 125 can be controllably (for example, by electrical control) translated horizontally, and / or can be controllably raised and lowered vertically, and / or can be controllably rotated around an axis extending in the horizontal direction, so that it can be adjusted according to the size and position of the product to obtain clear picture results.

[0039] Preferably, if Figures 4 to 6 As shown, each first detection mechanism 120 and each second detection mechanism 230 also has a light source 126, which is used to illuminate the detection camera 125 when taking pictures, so as to obtain clearer picture results; optionally, the light source 126 can be controlled to move independently relative to the detection camera 125, and / or move together with the detection camera 125, so as to change the lighting angle, thereby creating different lighting environments, in order to obtain a higher detection rate.

[0040] The following are respectively Figure 1 and Figure 2 The structures of the first detection mechanism 120 and the second detection mechanism 230 in the embodiment of FIG. 1 are introduced in sequence. For example, Figure 4 As shown, in this embodiment, the detection camera 125 of the first detection mechanism A121 is movably arranged on a camera moving axis 127 extending in the horizontal direction. There are two detection cameras 125, which are connected to each other. Through electronic control adjustment, the two detection cameras 125 can be controlled to move horizontally together to approach the central axis of the turntable 110 or away from the central axis of the turntable 110; and a light source 126 is provided below each detection camera 125, which can move horizontally together with the detection camera 125. In terms of the specific structure of the light source 126, as shown in FIG. Figure 7 As shown, the light source 126 under each detection camera 125 includes a plurality of light strips 1261, which are arranged around the central axis of the detection camera 125 to form a ring-shaped light source 126. Each light strip 1261 can be individually controlled (for example, also through electrical adjustment) to rotate around an axis extending in its own length direction without manual adjustment.

[0041] See Figure 5The first detection mechanism B122 also includes two detection cameras 125. The two detection cameras 125 are also movably arranged on a camera movement axis 127 extending in the horizontal direction. Through electronic adjustment, the two detection cameras 125 can be controlled to translate horizontally to approach or move away from the central axis of the turntable 110. A light source 126 is also provided below each detection camera 125. The structure of the light source 126 is the same as that of the first detection mechanism A121 and will not be described in detail here. Unlike the first detection mechanism A121, the second detection mechanism B232 also includes auxiliary rails 128 arranged parallel to the camera movement axis 127 and spaced apart. The provision of the auxiliary rails 128 can enhance the smooth movement of the detection cameras 125.

[0042] See Figure 6 The first inspection mechanism C123 also includes two inspection cameras 125, which are movably mounted on a vertically extending camera movement axis 127. Electronically controlled, these cameras 125 can be moved vertically and raised and lowered, and each can also be rotated about a horizontally extending axis. A light source 126 is located below each inspection camera 125. This light source 126 is an annular ring-shaped light source that moves or rotates with the camera 125.

[0043] Further, see Figure 3 In the structure of the second detection mechanism A231, the lens of the detection camera 125 in the second detection mechanism A231 is facing horizontally, so that it can shoot the side of the product; the detection camera 125 in the second detection mechanism B232 can also rotate along an axis extending in the horizontal direction to adjust the angle of shooting.

[0044] Furthermore, in order to make full use of the space of the entire equipment and to improve the detection efficiency, more products can be detected at the same time. Figure 1 and Figure 3 As shown, there are two second detection units 200, and the two second detection units 200 are symmetrically arranged in the horizontal direction. The second detection mechanism B232 of each second detection unit 200 can be controllably moved closer to or away from the second detection mechanism B232 of another second detection unit 200.

[0045] It should be noted that Figure 1The embodiment shown in is only a structure for performing appearance inspection on a specific product. It is understandable that in other embodiments, in the product appearance inspection device 10 provided by the present application, any first inspection mechanism 120 and the second inspection mechanism 230 can be provided with only one inspection camera 125 or multiple inspection cameras 125, and correspondingly, only one light source 126 or multiple light sources 126 can be provided, and the structure of the light source 126 is not limited. It can be a circular ring light source 126, or a ring light source 126 surrounded by multiple light strips 1261; and the structures of each first inspection mechanism 120 and each second inspection mechanism 230 can be interchangeable or replace each other, for example, the structure of the first inspection mechanism A121 can be interchangeable with the structure of the first inspection mechanism B122 or the first inspection mechanism C123, or the structure of the second inspection mechanism A231 can be interchangeable with the structure of the second inspection mechanism B232, and even the structure of the first inspection mechanism 120 can be interchangeable with the structure of the second inspection mechanism 230. There is no limitation here, and it can be adjusted according to the different products to be inspected.

[0046] As an improvement to the above embodiment, see Figure 1 The appearance inspection equipment also includes a first transfer mechanism 300, which includes a first transfer module and a first grabbing member arranged on the first transfer module. The first transfer module can be a two-axis module or a three-axis module. Driven by the first transfer module, the first grabbing member can transfer the product from the first transfer station 103 to the second transfer station 104, thereby realizing the automatic flow of products between the first inspection unit 100 and the second inspection unit 200, without the need to manually transfer the products from the first inspection unit 100 to the second inspection unit 200.

[0047] Furthermore, in order to realize automatic loading, as Figure 1 As shown, the loading station 101 is provided with a loading unit 400, which includes a feeding mechanism 410 and a manipulator 420 arranged adjacent to each other. The feeding mechanism 410 is used to convey the product to the turntable 110, and the manipulator 420 is used to transfer the product from the feeding mechanism 410 to the turntable 110. The structure of the feeding mechanism 410 can be a structure with a tray mounted on a linear motor, etc., and the manipulator 420 can also be replaced by a two-axis module or a three-axis module, which is not limited here.

[0048] Similarly, in order to realize automatic unloading, the unloading station 203 is provided with an unloading unit 500, which includes a second transfer mechanism 510 and an unloading mechanism 520 arranged adjacent to each other. The second transfer mechanism 510 includes a second transfer module and a second gripping member arranged on the second transfer module. Under the drive of the second transfer module, the second gripping member can transfer the qualified products from the carrier 220 of the second inspection unit 200 to the unloading mechanism 520. The structure of the second transfer mechanism 510 in the figure is the same as that of the first transfer mechanism 300, and the structure of the unloading mechanism 520 is the same as that of the feeding mechanism 410, and the details will not be repeated. Of course, the first transfer mechanism 300 and the second transfer mechanism 510 can also be robots, and there is no special limitation here.

[0049] In addition, after the products are tested by the first testing unit 100 and the second testing unit, there will inevitably be unqualified products. Therefore, preferably, Figure 1 As shown, an NG discharge unit 600 is also provided next to the second inspection unit 200. The NG discharge unit 600 includes a third transfer mechanism 610 and an NG discharge mechanism 620. The third transfer mechanism 610 is used to transfer unqualified products from the carrier 220 of the second inspection unit 200 to the NG discharge mechanism 620. The NG discharge mechanism 620 is used to discharge unqualified products from the product appearance inspection device 10. Similarly, the third transfer mechanism 610 in the figure has the same structure as the first transfer mechanism 300 and the second transfer mechanism 510. The NG discharge mechanism 620 also has the same structure as the feeding mechanism 410 and the unloading mechanism 520, and their descriptions are omitted here.

[0050] In this way, after the products are inspected by each first inspection mechanism 120 and each second inspection mechanism 230 in turn, the qualified products are directly transferred from the carrier 220 of the second inspection unit 200 to the unloading mechanism 520 by the second transfer mechanism 510, and the qualified products are unloaded by the unloading mechanism 520, while the unqualified products are transferred from the carrier 220 to the NG discharge unit 600, and the unqualified products are transferred from the carrier 220 to the NG discharge mechanism 620 by the third transfer mechanism 610 of the NG discharge unit 600, and finally the unqualified products are discharged by the NG discharge.

[0051] Please continue to combine Figures 1 to 3 As shown, the first transfer station 103 and one of the first detection stations 102 are arranged along the first direction ( Figure 1 The first transfer station 103 is arranged opposite to the first detection station 102 provided with the first detection mechanism B122 (X direction shown in FIG). Preferably, the linear module 210 in the second detection unit 200 is arranged along the second direction ( Figure 1The first transfer mechanism 300 and the second transfer mechanism 510 are extended in the Y direction as shown in the figure, so that the first transfer mechanism 300 and the second transfer mechanism 510 are both arranged adjacent to the first detection unit 100, thereby saving space for the entire equipment and realizing the integration of the first detection unit 100 and the second detection unit 200 in a limited space.

[0052] It can be seen that the product appearance inspection equipment 10 provided by the present application integrates multiple inspection mechanisms into one device, and only one device is needed to replace multiple devices to inspect all different surfaces of the product, so that the equipment site occupies less space and saves inspection costs; and it realizes the functions of automatic loading and unloading and simultaneous online inspection of multiple products at multiple stations, so the equipment has a high degree of automation, and no manual contact with the product is required, which improves the inspection efficiency; furthermore, the inspection camera 125 and the light source 126 of each inspection mechanism can be moved independently by electric control, so that the debugging personnel can control the position or angle of the inspection camera 125 and the light source 126 outside the equipment, so as to adjust it to the optimal inspection position. There is no need for the debugging personnel to enter the narrow space in the equipment to debug the position or angle of the inspection camera 125 and the light source 126, which simplifies the difficulty of debugging.

[0053] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A product appearance inspection device, characterized in that: It includes a first detection unit (100) and a second detection unit (200); The first detection unit (100) includes a turntable (110) that can rotate around its own central axis, and the first detection unit is sequentially provided with a loading station (101), a plurality of first detection stations (102) and a first transfer station (103) along the circumferential direction of the turntable (110), and each first detection station (102) is respectively provided with a first detection mechanism (120); The second detection unit (200) includes a linear module (210) and a carrier (220) movably arranged on the linear module (210), and the second detection unit (200) is provided with a second transfer station (201), a plurality of second detection stations (202) and a blanking station (203) in sequence in the direction in which the linear module (210) extends, the second transfer station (201) is arranged adjacent to the first transfer station (103), and each second detection station (202) is respectively provided with a second detection mechanism (230).

2. The product appearance inspection device according to claim 1, characterized in that: Each of the first detection mechanisms (120) and each of the second detection mechanisms (230) respectively has a detection camera (125), and the detection camera (125) can be controllably translated in the horizontal direction, and / or can be controllably raised and lowered in the vertical direction, and / or can be controllably rotated around an axis extending in the horizontal direction.

3. The product appearance inspection device according to claim 2, characterized in that: Each of the first detection mechanisms (120) and each of the second detection mechanisms (230) also has a light source (126), and the light source (126) can be controlled to move independently relative to the detection camera (125) and / or can move together with the detection camera (125).

4. The product appearance inspection device according to claim 3, characterized in that: At least one of the light sources (126) includes a plurality of light bars (1261), which are arranged around the central axis of the detection camera (125), and each of the light bars (1261) can be controlled to rotate around an axis extending along its own length direction.

5. The product appearance inspection device according to claim 1, characterized in that: There are two second detection units (200), and the two second detection units (200) are symmetrically arranged at intervals along the horizontal direction. At least one second detection mechanism (230) of each second detection unit (200) can be controllably moved closer to or farther away from the corresponding second detection mechanism (230) of another second detection unit (200).

6. The product appearance inspection device according to claim 1, characterized in that: The appearance inspection device (10) further includes a first transfer mechanism (300), the first transfer mechanism (300) including a first transfer module and a first gripping member arranged on the first transfer module, the first gripping member being capable of transferring the product from the first transfer station (103) to the second transfer station (201) under the drive of the first transfer module.

7. The product appearance inspection device according to claim 1, characterized in that: The loading station (101) is provided with a loading unit (400), and the loading unit (400) includes a feeding mechanism (410) and a manipulator (420) arranged adjacent to each other, and the manipulator (420) is used to transfer the product from the feeding mechanism (410) to the turntable (110).

8. The product appearance inspection device according to claim 1, characterized in that: The unloading station (203) is provided with an unloading unit (500), and the unloading unit (500) includes a second transfer mechanism (510) and an unloading mechanism (520) arranged adjacent to each other, and the second transfer mechanism (510) includes a second transfer module and a second grabbing member arranged on the second transfer module, and the second grabbing member is used to transfer the qualified product from the carrier (220) to the unloading mechanism (520).

9. The product appearance inspection device according to claim 1, characterized in that: The first transfer station (103) and one of the first detection stations (102) are arranged opposite to each other along a first direction, and the linear module (210) is extended along a second direction perpendicular to the first direction.

10. The product appearance inspection device according to claim 1, characterized in that: An NG discharge unit (600) is also provided next to the second detection unit (200). The NG discharge unit (600) includes a third transfer mechanism (610) and an NG discharge mechanism (620). The third transfer mechanism (610) is used to transfer the unqualified products from the carrier (220) to the NG discharge mechanism (620).

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