An apparatus for high speed detection of cosmetic defects of a thin multi-faceted shell

Abstract

The utility model relates to a kind of equipment for high-speed detection appearance defect of thin multi-faceted shell, including two groups of appearance detection mechanism, the appearance detection mechanism includes first transfer mechanism, second transfer mechanism, external face line sweep detection mechanism, external face photographing detection mechanism, inner cavity face photographing detection mechanism and inner cavity face line sweep detection mechanism, and between two the external face line sweep detection mechanism is provided with feeding mechanism, and between two the inner cavity face line sweep detection mechanism is provided with turnover material taking mechanism, by two groups of appearance detection mechanism, so that the equipment integrated with two detection product appearance channel, let the equipment more efficient detection product appearance, simultaneously by external face line sweep detection mechanism, external face photographing detection mechanism, inner cavity face photographing detection mechanism and inner cavity face line sweep detection mechanism cooperation, to perform appearance detection to the external face and inner cavity face of the polyhedral structure of thin steel shell, realize more appearance defect type detection, reduce the risk of missed detection.

Description

Technical Field

[0001] This utility model relates to the field of shell appearance inspection, and more specifically, to a device for high-speed inspection of appearance defects in thin, multifaceted shells. Background Technology

[0002] With the improvement of the general public's consumption level, 3C consumer electronics products now not only have functional requirements, but also increasingly higher requirements for the appearance of the products and their components. Therefore, during the processing and assembly of products leaving the factory, there are corresponding quality inspection departments or personnel to inspect for appearance defects. However, manual inspection is inefficient, requires a large number of personnel, and has high requirements for personnel's ability and quality. The subjective factors of personnel also lead to the inability to effectively guarantee the consistency of the evaluation standards.

[0003] Therefore, manufacturers introduce equipment for inspecting appearance. Currently, there are many AOI inspection devices for appearance on the market. However, existing equipment is mainly used to inspect the external surfaces of products with relatively regular cuboid structures. For the external surfaces and internal cavities of polyhedral structures with thin steel shells, there is still no good solution for efficient and accurate appearance inspection. Utility Model Content

[0004] To address the aforementioned shortcomings of existing technologies, a device for high-speed detection of appearance defects in thin, multifaceted shells is provided.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a device for high-speed detection of appearance defects in thin, multifaceted shells, comprising two sets of appearance inspection mechanisms arranged alternately. Each appearance inspection mechanism includes a first transfer mechanism, a second transfer mechanism, an external surface line scanning inspection mechanism, an external surface photographic inspection mechanism for detecting multiple surfaces, an internal cavity surface photographic inspection mechanism for detecting multiple surfaces, and an internal cavity surface line scanning inspection mechanism. The external surface line scanning inspection mechanism, the external surface photographic inspection mechanism, the internal cavity surface photographic inspection mechanism, and the internal cavity surface line scanning inspection mechanism are arranged sequentially. The first transfer mechanism transfers the product from the external surface line scanning inspection mechanism to the external surface photography inspection mechanism. The first transfer mechanism also transfers the product from the external surface photography inspection mechanism to the internal cavity surface photography inspection mechanism and flips the product. The second transfer mechanism transfers the product on the internal cavity surface photography inspection mechanism to the internal cavity line scanning inspection mechanism. A feeding mechanism for feeding the two external surface line scanning inspection mechanisms is provided between the two external surface line scanning inspection mechanisms. A flipping and picking mechanism for removing and flipping the product on the two internal cavity surface line scanning inspection mechanisms is provided between the two internal cavity surface line scanning inspection mechanisms.

[0006] Preferably, a positioning bracket is provided between the two external surface scanning detection mechanisms. The top of the positioning bracket is provided with a plurality of equally spaced positioning mechanisms. Each positioning mechanism includes a support block that supports the product. The four sides of the support block are respectively provided with positioning blocks and three push blocks spaced apart from the corresponding support blocks. The positioning bracket is provided with three cylinders that push the three corresponding push blocks toward the support blocks. The feeding mechanism simultaneously feeds the products from the multiple positioning mechanisms onto any one of the external surface scanning detection mechanisms.

[0007] Preferably, the external surface line scan detection mechanism and the internal cavity surface line scan detection mechanism are line scan mechanisms with the same structure. The line scan mechanism includes a first linear moving platform, on which a variable pitch slide module is provided. The variable pitch slide module is provided with a plurality of first detection fixtures that carry the product and rotate the product horizontally. A line scan camera for detecting the product on the first detection fixture is provided above the first linear moving platform. The external surface line scan detection mechanism also includes a first support frame for supporting the line scan camera, and a line scan light source that cooperates with the line scan camera is also provided on the first support frame.

[0008] Preferably, the external surface photographing and inspection mechanism includes a second linear motion platform. A second inspection fixture is mounted on the second linear motion platform, carrying and simultaneously rotating multiple products. The second inspection fixture drives the multiple products to rotate simultaneously along four axes: X-axis, Y-axis, R-axis, and U-axis. Multiple first area array cameras are mounted above the second inspection fixture, each positioned directly above a corresponding product. Below each first area array camera are sequentially arranged a first high eight-segment ring light source, a first coaxial light source, a first low eight-segment ring light source, and a first arched light source. The external surface photographing and inspection mechanism also includes a second support frame. The first high eight-segment ring light source, the first coaxial light source, the first low eight-segment ring light source, and the first arched light source are all mounted on the second support frame. A first lifting mechanism is mounted on the second support frame, and the first area array cameras are mounted on the first lifting mechanism.

[0009] Preferably, the internal cavity surface imaging and inspection mechanism includes a third linear motion platform. The third linear motion platform is equipped with a third inspection fixture that carries and rotates multiple products simultaneously. The third inspection fixture drives the multiple products to rotate simultaneously along four axes: X-axis, Y-axis, R-axis, and U-axis. Multiple second area array cameras are arranged above the third inspection fixture, each located directly above a corresponding product. A second high eight-segment ring light source, a second coaxial light source, and a second low eight-segment ring light source are arranged sequentially below each second area array camera. The external surface imaging and inspection mechanism also includes a third support frame. The second high eight-segment ring light source, the second coaxial light source, and the second low eight-segment ring light source are all mounted on the third support frame. A second lifting mechanism is arranged on the third support frame, and the second area array cameras are mounted on the second lifting mechanism.

[0010] Preferably, the first transfer mechanism includes a fourth linear moving platform, on which a moving plate is provided. On the moving plate, two third lifting mechanisms are arranged at intervals along the moving direction of the moving plate. Each third lifting mechanism is provided with a plurality of first picking suction heads that pick up products. The plurality of first picking suction heads are arranged at equal intervals. Each of the third lifting mechanisms is provided with a rotating mechanism that drives the corresponding plurality of picking suction heads to rotate synchronously.

[0011] Preferably, the second transfer mechanism includes a fifth linear moving platform, on which a fourth lifting mechanism is provided, and on which a plurality of second picking suction heads for picking up products are provided, the plurality of second picking suction heads being arranged at equal intervals.

[0012] Preferably, the flipping and picking mechanism includes a fifth lifting mechanism, which is provided with a plurality of third picking suction heads for picking up products. The plurality of third picking suction heads are arranged at equal intervals, and the fifth lifting mechanism is provided with a flipping mechanism for simultaneously flipping the plurality of third picking suction heads.

[0013] Preferably, the device for high-speed detection of appearance defects in thin multifaceted shells further includes a base; the first transfer mechanism, the second transfer mechanism, the external surface line scan detection mechanism, the external surface photographic detection mechanism, the internal cavity surface photographic detection mechanism, and the internal cavity surface line scan detection mechanism are all mounted on the base.

[0014] The beneficial effects of this utility model are as follows: This equipment is equipped with two sets of appearance inspection mechanisms, and feeds materials to the two external surface line scanning inspection mechanisms through the feeding mechanism, so that this equipment integrates two channels for inspecting the appearance of products, allowing the equipment to inspect the appearance of products more efficiently and reduce manpower input. At the same time, the external surface line scanning inspection mechanism, the external surface photographic inspection mechanism, the internal cavity surface photographic inspection mechanism, and the internal cavity surface line scanning inspection mechanism work together to perform appearance inspection on the external surface and internal cavity surface of the polyhedral structure of the thin steel shell. Furthermore, the line scanning inspection mechanism and the photographic inspection mechanism work together to detect more types of appearance defects and reduce the risk of missed detection. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the first transfer mechanism according to an embodiment of the present utility model;

[0017] Figure 3 This is a schematic diagram of the second transfer mechanism according to an embodiment of the present utility model;

[0018] Figure 4 This is a schematic diagram of the external surface line scanning detection mechanism and the internal cavity surface line scanning detection mechanism according to an embodiment of the present utility model;

[0019] Figure 5 This is a schematic diagram of the external surface photographing and detection mechanism according to an embodiment of the present invention;

[0020] Figure 6 This is a schematic diagram of the internal cavity surface imaging and detection mechanism according to an embodiment of the present invention;

[0021] Figure 7 This is a schematic diagram of the positioning mechanism structure according to an embodiment of the present utility model;

[0022] Figure 8 This is a schematic diagram of the flipping material handling mechanism according to an embodiment of the present invention.

[0023] Reference numerals: 1 First transfer mechanism, 10 Fourth linear moving platform, 11 Moving plate, 12 Third lifting mechanism, 13 First material suction head, 14 Rotating mechanism, 2 Second transfer mechanism, 20 Fifth linear moving platform, 21 Fourth lifting mechanism, 22 Second material suction head, 3 External surface line scanning detection mechanism, 30 First linear moving platform, 31 Variable pitch slide module, 32 First detection fixture, 33 Line scanning camera, 34 First support frame, 35 Line scanning light source, 4 External surface imaging detection mechanism, 40 Second linear moving platform, 41 Second detection fixture, 42 First area array camera, 43 First high-resolution eight-segment ring light source, 44 First coaxial light source, 4 5 First low eight-zone ring light source, 46 First arch light source, 47 Second support frame, 48 First lifting mechanism, 5 Inner cavity surface imaging and detection mechanism, 50 Third linear moving platform, 51 Third detection fixture, 52 Second area array camera, 53 Second high eight-zone ring light source, 54 Second coaxial light source, 55 Second low eight-zone ring light source, 56 Third support frame, 57 Second lifting mechanism, 6 Inner cavity surface line scanning and detection mechanism, 7 Feeding mechanism, 70 Positioning mechanism, 71 Positioning bracket, 72 Support block, 73 Positioning block, 74 Push block, 75 Cylinder, 8 Tilting and picking mechanism, 80 Fifth lifting mechanism, 81 Third picking suction head, 82 Tilting mechanism, 9 Base. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. In addition, the directional terms mentioned in this utility model, such as "up," "down," "front," "back," "left," "right," "inner," and "outer," are only for reference to the directions in the accompanying drawings. The directional terms are used to better and more clearly explain and understand this utility model, and are not intended to indicate or imply the necessary orientation of this utility model. Therefore, they should not be construed as limitations on this utility model.

[0025] Examples of embodiments of this utility model Figures 1 to 8As shown, a device for high-speed detection of appearance defects in thin, multifaceted shells includes two sets of appearance inspection mechanisms. These mechanisms are arranged alternately and laterally. Each appearance inspection mechanism includes a first transfer mechanism 1, a second transfer mechanism 2, an external surface line scanning inspection mechanism 3, an external surface photographic inspection mechanism 4 (detecting multiple surfaces), an internal cavity surface photographic inspection mechanism 5 (detecting multiple surfaces), and an internal cavity surface line scanning inspection mechanism 6. These mechanisms are arranged sequentially from front to back. The first transfer mechanism 1... The product is transferred from the external surface line scanning inspection mechanism 3 to the external surface photographing inspection mechanism 4. The first transfer mechanism 1 also transfers the product from the external surface photographing inspection mechanism 4 to the internal cavity photographing inspection mechanism 5 and flips the product. That is, the first transfer mechanism 1 flips the product on the external surface photographing inspection mechanism 4 and then transfers it to the internal cavity photographing inspection mechanism 5. At this time, the product exposes the internal cavity surface, which facilitates the appearance inspection of the product's internal cavity surface. The second transfer mechanism 2 transfers the product on the internal cavity photographing inspection mechanism 5 to the internal cavity line scanning inspection mechanism 6. A feeding mechanism 7 is provided between the two external surface line scanning inspection mechanisms 3 to feed the products to the two external surface line scanning inspection mechanisms 3. A flipping and picking mechanism 8 is provided between the two internal cavity line scanning inspection mechanisms 6 to remove and flip the products on the two internal cavity line scanning inspection mechanisms 6.

[0026] This equipment is equipped with two sets of appearance inspection mechanisms, and feeds the two external surface line scanning inspection mechanisms through the feeding mechanism 7. This integrates two channels for inspecting product appearance, allowing the equipment to inspect product appearance more efficiently and reduce manpower input. At the same time, the external surface line scanning inspection mechanism 3, the external surface photographic inspection mechanism 4, the internal cavity surface photographic inspection mechanism 5, and the internal cavity surface line scanning inspection mechanism 6 work together to perform appearance inspection on the external and internal surfaces of the polyhedral structure of the thin steel shell. The line scanning inspection mechanism and the photographic inspection mechanism work together to detect more types of appearance defects and reduce the risk of missed detection.

[0027] Further improvements, such as Figure 1 and Figure 7As shown, a positioning bracket 71 is also provided between the two external surface scanning detection mechanisms 3. The top of the positioning bracket 71 is provided with a plurality of equally spaced positioning mechanisms 70. The positioning mechanism 70 includes a support block 72 supporting the product. The four sides of the support block 72 are respectively provided with positioning blocks 73 and three push blocks 74 spaced apart from the corresponding support block 72. The positioning bracket 71 is provided with three cylinders 75 that push the three corresponding push blocks 74 toward the support block. The product on the support block 72 is positioned by the positioning blocks 73 and the three moving push blocks 74, so as to facilitate the feeding mechanism 7 to pick up multiple products on the positioning mechanism 70. The feeding mechanism 7 feeds the products on multiple positioning mechanisms 70 simultaneously onto any one of the external surface scanning detection mechanisms 3.

[0028] Further improvements, such as Figure 1 and Figure 4 As shown, the external surface line scanning detection mechanism 3 and the internal cavity surface line scanning detection mechanism 6 are line scanning mechanisms with identical structures. Each line scanning mechanism includes a first linear motion platform 30, which extends in the front-to-back direction. The loading mechanism 7 is a robotic arm, preferably a three-axis motion platform. Multiple loading suction heads are provided on the three-axis motion platform, arranged at equal intervals. The three-axis motion platform drives the loading suction heads to move, thereby loading the products from the positioning mechanism 70 onto the two external surface line scanning detection mechanisms 3. The first linear motion platform 30 is equipped with a variable-pitch slide module 31, which is equipped with multiple first detection fixtures 32 that carry and horizontally rotate the products. The products from the multiple loading suction heads are loaded onto the... On the corresponding first inspection fixture 32, the spacing between multiple first inspection fixtures 32 is adjusted by the variable pitch slide module 31 to prevent interference when the first inspection fixture 32 rotates the product. A line scan camera 33 for detecting the product on the first inspection fixture 32 is set above the first linear motion platform 30. The external surface line scan detection mechanism 3 also includes a first support frame 34 for supporting the line scan camera 33. A line scan light source 35 that cooperates with the line scan camera 33 is also set on the first support frame 34. The first linear motion platform 30 drives multiple first inspection fixtures 32 to pass through the line scan camera 33 at a uniform speed in sequence, thereby detecting the top surface of the largest external surface of the product or the inner bottom surface of the inner cavity surface. The first inspection fixture 32 rotates the product, so that the line scan camera 33 can detect the top surface of the product from another direction, thereby avoiding missed detection of appearance defects.

[0029] Further improvements, such as Figure 1 and Figure 5As shown, the external surface imaging and inspection mechanism 4 includes a second linear motion platform 40 extending horizontally. A second inspection fixture 41, which carries and simultaneously rotates multiple products, is mounted on the second linear motion platform 40. The second inspection fixture 41 drives multiple products to rotate simultaneously along four axes: X-axis, Y-axis, R-axis, and U-axis. The U-axis is a custom rotation axis determined according to the product shape, thereby inspecting all surfaces of the product and avoiding blind spots. Multiple first area array cameras 42 are positioned above the second inspection fixture 41, each located directly above a corresponding product. Below each first area array camera 42 are sequentially arranged a first high eight-segment ring light source 43, a first coaxial light source 44, a first low eight-segment ring light source 45, and a first arched light source 46. The external surface imaging and inspection mechanism 4 also includes a second support frame 47. The first high eight-segment ring light source 43, the first coaxial light source 44, the first low eight-segment ring light source 45, and the first arched light source 46 are all mounted on the second support frame 47. The second support frame 47 is equipped with a first lifting mechanism 48. The first area array camera 42 is mounted on the first lifting mechanism 48. The second linear moving platform 40 drives the second inspection fixture 41 to move left and right, thereby allowing the second inspection fixture 41 to move between the area array camera 42 and the first transfer mechanism 1, which facilitates the transfer of products by the first transfer mechanism 1. The first area array camera 42 is raised and lowered by the first lifting mechanism 48 to adjust the focal length. Together with the first high eight-segment ring light source 43, the first coaxial light source 44, the first low eight-segment ring light source 45, and the first arched light source 46, the highly reflective surfaces of polyhedrons, such as metal shells, glass, and injection molded parts, which are prone to specular reflection during inspection, are eliminated. This enables the detection of more types of appearance defects on the external surface of the product and reduces the risk of missed detection.

[0030] Further improvements, such as Figure 1 and Figure 6As shown, the internal cavity surface imaging and inspection mechanism 5 includes a third linear motion platform 50. A third inspection fixture 51, which carries and rotates multiple products simultaneously, is mounted on the third linear motion platform 50. The third inspection fixture 51 drives multiple products to rotate simultaneously along four axes: X-axis, Y-axis, R-axis, and U-axis. The U-axis of the third inspection fixture 51 is also a custom rotation axis, determined according to the product shape, thereby inspecting all surfaces of the product. Multiple second area array cameras 52 are mounted above the third inspection fixture 51, each positioned directly above a corresponding product. Below each second area array camera 52 are sequentially arranged a second high eight-segment ring light source 53, a second coaxial light source 54, and a second low eight-segment ring light source 55. The internal cavity surface imaging and inspection mechanism 5 also includes... The third support frame 56 is on which the second high eight-segment ring light source 53, the second coaxial light source 54, and the second low eight-segment ring light source 55 are all mounted. The third support frame 56 is equipped with a second lifting mechanism 57, and the second area array camera 52 is mounted on the second lifting mechanism 57. The third linear moving platform 50 drives the third inspection fixture 51 to move left and right, thereby facilitating the transfer of products by the first transfer mechanism 1 and the second transfer structure 2. The second area array camera 52 is adjusted by raising and lowering it through the second lifting mechanism 57. Combined with the second high eight-segment ring light source 53, the second coaxial light source 54, and the second low eight-segment ring light source 55, the highly reflective surfaces of polyhedrons, such as metal shells, glass, and injection molded parts, which are prone to specular reflection during inspection, are eliminated. This enables the detection of more types of appearance defects on the inner surface of the product and reduces the risk of missed detection.

[0031] Further improvements, such as Figure 1 and Figure 2As shown, the first transfer mechanism 1 includes a fourth linear moving platform 10, on which a moving plate 11 is provided. Two third lifting mechanisms 12 are arranged at intervals along the moving direction of the moving plate 11, i.e., the two third lifting mechanisms 12 are arranged at intervals in the front-back direction. Multiple first picking suction heads 13 are provided on each third lifting mechanism 12 to pick up products. The multiple first picking suction heads 13 are arranged at equal intervals. Each of the third lifting mechanisms 12 is provided with a rotating mechanism 14 that drives the corresponding multiple picking suction heads to rotate synchronously. The rotating mechanism 14 is... In the existing multi-station synchronous rotation structure, preferably, the rotation mechanism 14 is set on the rear third lifting mechanism 12. At this time, the front third lifting mechanism 12 and multiple first picking suction heads 13 are used to transfer the product from the external surface line scanning detection mechanism 3 to the external surface photographing detection mechanism 4. The rear third lifting mechanism 12, rotation mechanism 14 and multiple first picking suction heads 13 are used to transfer the product from the external surface photographing detection mechanism 4 to the internal cavity photographing detection mechanism 5, so as to avoid the fourth linear moving platform 10 having to move a longer distance to transfer the product on the external surface photographing detection mechanism 4 to the internal cavity photographing detection mechanism 5.

[0032] Further improvements, such as Figure 1 and Figure 3 As shown, the second transfer mechanism 2 includes a fifth linear moving platform 20, on which a fourth lifting mechanism 21 is provided. The fourth lifting mechanism 21 is provided with a plurality of second picking suction heads 22 for picking up products. The plurality of second picking suction heads 22 are arranged at equal intervals. The products on the inner cavity surface imaging detection mechanism 5 are transferred to the inner cavity surface line scanning detection mechanism 6 through the fifth linear moving platform 20, the fourth lifting mechanism 21 and the plurality of second picking suction heads 22.

[0033] Further improvements, such as Figure 1 and Figure 7 As shown, the flipping and picking mechanism 8 includes a fifth lifting mechanism 80, on which a plurality of third picking suction heads 81 are provided to pick up the product. The plurality of third picking suction heads 81 are arranged at equal intervals. The fifth lifting mechanism 80 is provided with a flipping mechanism 82 that flips the plurality of third picking suction heads 81 simultaneously. The flipping mechanism 82 is a hollow rotating platform with a mounting plate. The plurality of third picking suction heads 81 are arranged at equal intervals on the mounting plate. The product is picked up and flipped by the fifth lifting mechanism 80, the flipping mechanism 82 and the plurality of third picking suction heads 81 so that the product can maintain the posture when it is received for discharge.

[0034] Further improvements, such as Figure 1As shown, the device for high-speed detection of appearance defects in thin, multifaceted shells also includes a base 9; the first transfer mechanism 1, the second transfer mechanism 2, the external surface line scan detection mechanism 3, the external surface photographic detection mechanism 4, the internal cavity surface photographic detection mechanism 5, and the internal cavity surface line scan detection mechanism 6 are all mounted on the base 1, and the base 1 facilitates the storage of various wires, air tubes, power supplies, and other related components associated with the first transfer mechanism 1, the second transfer mechanism 2, the external surface line scan detection mechanism 3, the external surface photographic detection mechanism 4, the internal cavity surface photographic detection mechanism 5, and the internal cavity surface line scan detection mechanism 6.

[0035] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A device for high-speed detection of appearance defects in thin, multifaceted shells, comprising two sets of appearance inspection mechanisms, characterized in that, Two sets of appearance inspection mechanisms are arranged at intervals; each appearance inspection mechanism includes a first transfer mechanism, a second transfer mechanism, an external surface line scanning inspection mechanism, an external surface photographic inspection mechanism for inspecting multiple surfaces, an internal cavity surface photographic inspection mechanism for inspecting multiple surfaces, and an internal cavity surface line scanning inspection mechanism; the external surface line scanning inspection mechanism, the external surface photographic inspection mechanism, the internal cavity surface photographic inspection mechanism, and the internal cavity surface line scanning inspection mechanism are arranged sequentially; the first transfer mechanism transfers the product from the external surface line scanning inspection mechanism to the external surface photographic inspection mechanism, and also transfers the product from the external surface photographic inspection mechanism to the internal cavity surface photographic inspection mechanism and flips the product; the second transfer mechanism transfers the product on the internal cavity surface photographic inspection mechanism to the internal cavity surface line scanning inspection mechanism; a feeding mechanism for feeding the two external surface line scanning inspection mechanisms is provided between the two external surface line scanning inspection mechanisms; a flipping and picking mechanism for removing and flipping the product from the two internal cavity surface line scanning inspection mechanisms is provided between the two internal cavity surface line scanning inspection mechanisms.

2. The device for high-speed detection of appearance defects in thin, multifaceted shells according to claim 1, characterized in that, A positioning bracket is also provided between the two external surface scanning detection mechanisms; the top of the positioning bracket is provided with a plurality of positioning mechanisms arranged at equal intervals; the positioning mechanism includes a support block for supporting the product; the four sides of the support block are respectively provided with positioning blocks and three push blocks spaced apart from the corresponding support blocks; the positioning bracket is provided with three cylinders that push the three corresponding push blocks toward the support blocks; the feeding mechanism simultaneously feeds the products from the multiple positioning mechanisms onto any one of the external surface scanning detection mechanisms.

3. The device for high-speed detection of appearance defects in thin, multifaceted shells according to claim 1, characterized in that, The external surface line scan detection mechanism and the internal cavity surface line scan detection mechanism are line scan mechanisms with identical structures; the line scan mechanism includes a first linear moving platform; a variable pitch slide module is provided on the first linear moving platform; multiple first detection fixtures are provided on the variable pitch slide module to carry the product and rotate the product horizontally; a line scan camera for detecting the product on the first detection fixture is provided above the first linear moving platform; the external surface line scan detection mechanism also includes a first support frame for supporting the line scan camera; a line scan light source that cooperates with the line scan camera is also provided on the first support frame.

4. The device for high-speed detection of appearance defects in thin, multifaceted shells according to claim 1, characterized in that, The external surface imaging and inspection mechanism includes a second linear motion platform; a second inspection fixture is provided on the second linear motion platform to carry multiple products and rotate them simultaneously, the second inspection fixture driving the multiple products to rotate simultaneously along four axes: X-axis, Y-axis, R-axis, and U-axis; multiple first area array cameras are provided above the second inspection fixture; the multiple first area array cameras are respectively located directly above the corresponding multiple products; a first high eight-segment ring light source, a first coaxial light source, a first low eight-segment ring light source, and a first arched light source are sequentially provided below each first area array camera; the external surface imaging and inspection mechanism also includes a second support frame; the first high eight-segment ring light source, the first coaxial light source, the first low eight-segment ring light source, and the first arched light source are all mounted on the second support frame; a first lifting mechanism is provided on the second support frame; the first area array cameras are mounted on the first lifting mechanism.

5. The device for high-speed detection of appearance defects in thin, multifaceted shells according to claim 1, characterized in that, The internal cavity surface imaging and inspection mechanism includes a third linear motion platform; the third linear motion platform is equipped with a third inspection fixture that carries and rotates multiple products simultaneously; the third inspection fixture drives multiple products to rotate simultaneously along four axes: X-axis, Y-axis, R-axis, and U-axis; multiple second area array cameras are arranged above the third inspection fixture; the multiple second area array cameras are respectively located directly above the corresponding multiple products; a second high eight-segment ring light source, a second coaxial light source, and a second low eight-segment ring light source are arranged sequentially below each second area array camera; the external surface imaging and inspection mechanism also includes a third support frame; the second high eight-segment ring light source, the second coaxial light source, and the second low eight-segment ring light source are all mounted on the third support frame; a second lifting mechanism is arranged on the third support frame; the second area array cameras are mounted on the second lifting mechanism.

6. The device for high-speed detection of appearance defects in thin, multifaceted shells according to claim 1, characterized in that, The first transfer mechanism includes a fourth linear moving platform; a moving plate is provided on the fourth linear moving platform; two third lifting mechanisms are provided on the moving plate at intervals along the moving direction of the moving plate; multiple first picking suction heads for picking up products are provided on the third lifting mechanisms; the multiple first picking suction heads are arranged at equal intervals; any one of the third lifting mechanisms is provided with a rotating mechanism that drives the corresponding multiple picking suction heads to rotate synchronously.

7. The device for high-speed detection of appearance defects in thin, multifaceted shells according to claim 1, characterized in that, The second transfer mechanism includes a fifth linear moving platform; a fourth lifting mechanism is provided on the fifth linear moving platform; a plurality of second picking suction heads for picking up products are provided on the fourth lifting mechanism; the plurality of second picking suction heads are arranged at equal intervals.

8. The device for high-speed detection of appearance defects in thin, multifaceted shells according to claim 1, characterized in that, The flipping and picking mechanism includes a fifth lifting mechanism; the fifth lifting mechanism is provided with multiple third picking suction heads for picking up products; the multiple third picking suction heads are arranged at equal intervals; the fifth lifting mechanism is provided with a flipping mechanism that flips multiple third picking suction heads simultaneously.

9. The device for high-speed detection of appearance defects in thin, multifaceted shells according to claim 1, characterized in that, The device for high-speed detection of appearance defects in thin, multifaceted shells also includes a base; the first transfer mechanism, the second transfer mechanism, the external surface line scan detection mechanism, the external surface photographic detection mechanism, the internal cavity surface photographic detection mechanism, and the internal cavity surface line scan detection mechanism are all mounted on the base.

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