Appearance detection equipment

Abstract

The invention relates to appearance detection equipment, which comprises a bearing table, a rotary table, a feeding hole, a discharging hole, a feeding hole, a discharging hole cover and a discharging hole, the feeding hole is arranged opposite to the bearing table and rotationally connected with the bearing table, and the discharging hole penetrates through the rotary table along the rotating axis of the rotary table which is parallel to the arrangement direction of the rotary table and the bearing table; the first detection assembly is arranged around at least part of the rotary table in the circumferential direction of the rotary table and comprises a first camera arranged on the side, away from the bearing table, of the rotary table, a first light source and a second light source, and the first light source and the second light source are arranged between the rotary table and the bearing table. The first camera is configured to shoot the side, away from the bearing table, of the to-be-detected workpiece, and the first light source and the second light source are configured to irradiate light to different areas on the side, close to the bearing table, of the to-be-detected workpiece. In conclusion, according to the appearance detection equipment in the embodiment, the area, irradiated by the light rays, of the workpiece to be detected is larger, and the accuracy of the detection result of the appearance detection equipment is high.

Description

Technical Field

[0001] The present application relates to the technical field of detection equipment, and in particular to an appearance detection equipment. Background Art

[0002] With the continuous advancement of science and technology, the quality requirements of various products in the production and life fields are getting higher and higher. The existing production technology will produce both qualified products and defective products in the process of producing products. Among them, the use of defective products will reduce the quality of the final product. The staff usually selects the defective products from the many products produced for recycling.

[0003] In the related art, a detection device is used to detect appearance defects of produced products in order to identify defective products. Appearance defects include pits, cracks, sand particles, etc. The products being inspected can also be transparent or opaque. However, the detection range of the detection device is small, and the detection device can only detect defects in a smaller area of ​​the product to be inspected, resulting in low accuracy of the detection results of the detection device. Summary of the invention

[0004] Based on this, it is necessary to provide an appearance inspection device to address the problem of low accuracy of inspection results of current inspection devices.

[0005] An appearance inspection device, comprising:

[0006] Loading platform;

[0007] A turntable is arranged opposite to the bearing platform and is rotatably connected to the bearing platform; a discharge hole is provided on the turntable, the discharge hole penetrates the turntable along the rotation axis of the turntable, the rotation axis of the turntable is parallel to the arrangement direction of the turntable and the bearing platform, and the discharge hole is used to assemble a light-transmissive workpiece to be inspected;

[0008] A first detection component is arranged along the circumference of the turntable and around at least a portion of the turntable. The first detection component includes a first camera arranged on a side of the turntable away from the supporting platform, and a first light source and a second light source are arranged between the turntable and the supporting platform. The first camera is configured to photograph the side of the workpiece to be inspected away from the supporting platform, and the first light source and the second light source are configured to irradiate light toward different areas on a side of the workpiece to be inspected close to the supporting platform.

[0009] In one embodiment, the first light source includes a first annular light source, the second light source includes a second annular light source, and the central axis of the first annular light source and the central axis of the second annular light source both coincide with the central axis of the discharge hole;

[0010] The inner diameter of the first annular light source is greater than zero, the outer diameter of the first annular light source is smaller than the aperture of the discharge hole, the inner diameter of the second annular light source is greater than or equal to the outer diameter of the first annular light source, and the inner diameter of the second annular light source is less than or equal to the inner diameter of the discharge hole.

[0011] In one embodiment, the first camera is spaced apart from the turntable;

[0012] The first detection component includes a first driving member, which is arranged on a side of the turntable away from the supporting platform. The movable end of the first driving member is connected to the first camera, and the first driving member is configured to drive the first camera to move toward or away from the turntable.

[0013] In one embodiment, the appearance inspection device includes a second inspection component, and the first inspection component and the second inspection component are arranged along the circumference of the turntable;

[0014] The second detection component includes a second camera arranged on the side of the turntable away from the supporting platform, and a third light source arranged on the side of the turntable close to the supporting platform. The second camera is configured to photograph the side of the workpiece to be inspected away from the supporting platform, and the third light source is configured to uniformly irradiate light toward the side of the workpiece to be inspected close to the supporting platform.

[0015] In one embodiment, a side of the third light source close to the turntable is a light-emitting surface, and the light-emitting surface is configured to emit light toward the workpiece to be inspected;

[0016] The second detection component includes a dimming element, which is arranged between the light-emitting surface and the turntable. The dimming element is slidably connected to the third light source along a direction perpendicular to the axial direction of the discharge hole. The dimming element is configured to adjust the light emitted by the light-emitting surface so that the light emitted by the light-emitting surface is uniformly irradiated onto the workpiece to be inspected in the discharge hole along a direction parallel to the axial direction of the discharge hole.

[0017] In one embodiment, the second detection assembly includes a second driving member, and the second driving member is disposed on a side of the third light source away from the turntable;

[0018] The movable end of the second driving member is connected to the dimming member, and the second driving member is configured to drive the dimming member to enter or exit the gap between the light-emitting surface and the turntable along a direction perpendicular to the axial direction of the discharge hole.

[0019] In one embodiment, the second detection assembly includes a third driving member disposed on a side of the third light source facing away from the turntable;

[0020] The fixed end of the second driving member and the third light source are both connected to the movable end of the third driving member, and the third driving member is configured to drive the second driving member and the third light source to move in a direction perpendicular to the movement direction of the dimming member and the axial direction of the discharge hole.

[0021] In one embodiment, the appearance inspection device includes a third inspection component, and the first inspection component and the third inspection component are arranged along the circumference of the turntable;

[0022] The third detection component includes a third camera arranged on the side of the turntable away from the supporting platform, a plurality of fourth light sources and a plurality of light blocking plates, the third camera is configured to photograph the side of the workpiece to be inspected away from the supporting platform, the plurality of fourth light sources are arranged around the outside of the third camera along a direction parallel to the rotation axis of the turntable, the plurality of fourth light sources are configured to irradiate light toward the side of the workpiece to be inspected away from the supporting platform along different directions, the plurality of light blocking plates are arranged corresponding to the plurality of fourth light sources, and each of the light blocking plates is configured to block the light reflected by the workpiece to be inspected from shining on the fourth light source corresponding to the light blocking plate.

[0023] In one embodiment, the third detection component includes a fifth light source, and the fifth light source is arranged on a side of the turntable close to the supporting platform. The side of the fifth light source close to the turntable is a light emitting surface, and the light emitting surface is configured to irradiate light toward a side of the workpiece to be inspected in the discharge hole close to the supporting platform.

[0024] In one embodiment, the appearance inspection device includes a fourth inspection component, and the first inspection component and the fourth inspection component are arranged along the circumference of the turntable;

[0025] The fourth detection component includes a fourth camera arranged between the turntable and the supporting platform, and a sixth light source arranged on the side of the turntable away from the supporting platform, the sixth light source is spaced apart from the turntable, the fourth camera is configured to photograph the side of the workpiece to be inspected close to the supporting platform, and the sixth light source is configured to irradiate light toward the side of the workpiece to be inspected away from the supporting platform.

[0026] In the appearance inspection equipment in this embodiment, the tester installs the light-transmissive workpiece to be inspected in the discharge hole, and then drives the turntable to rotate around its own rotation axis relative to the supporting platform, so that the workpiece to be inspected passes through the first inspection component. In the process of the workpiece to be inspected passing through the first inspection component, when the workpiece to be inspected in the discharge hole on the turntable moves to between the first camera and the first light source, the first light source irradiates light toward the side of the workpiece to be inspected close to the supporting platform, and the irradiated light penetrates the workpiece to be inspected. The tester uses the first camera to shoot the area of ​​the workpiece to be inspected that is irradiated by the light emitted by the first light source from the side of the workpiece to be inspected away from the supporting platform to identify defects.

[0027] Similarly, when the workpiece to be inspected in the discharge hole on the turntable moves between the first camera and the second light source, the second light source irradiates light toward the side of the workpiece to be inspected close to the carrier, and the irradiated light penetrates the workpiece to be inspected. The tester uses the first camera to shoot the area of ​​the workpiece to be inspected that is irradiated by the light emitted by the second light source from the side of the workpiece to be inspected away from the carrier to identify defects. Since the first light source and the second light source irradiate light toward different areas on the side of the workpiece to be inspected close to the carrier, the first camera can perform defect detection on different areas of the workpiece to be inspected from the side of the workpiece to be inspected away from the carrier.

[0028] In summary, in the appearance inspection equipment in this embodiment, the area of ​​the workpiece to be inspected that is illuminated by light is larger, the first camera can perform defect detection on a larger area of ​​the workpiece to be inspected, and the detection result of the appearance inspection equipment has a higher accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments or exemplary embodiments of the present application, the drawings required for use in the description of the embodiments or exemplary embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 Schematic diagram of the structure of an appearance inspection device in one embodiment of the present application.

[0031] Figure 2 for Figure 1 The A-direction view of the appearance inspection equipment shown.

[0032] Figure 3 for Figure 1 A schematic diagram of the partial structure of the appearance inspection equipment shown.

[0033] Figure 4 for Figure 1 A schematic structural diagram of the first detection component in the appearance detection equipment shown.

[0034] Figure 5 for Figure 4 A schematic diagram of the partial structure of the first detection component is shown.

[0035] Figure 6 for Figure 1 A schematic structural diagram of the second detection component in the appearance detection equipment shown.

[0036] Figure 7 for Figure 6 A schematic diagram of the partial structure of the second detection component is shown.

[0037] Figure 8 for Figure 1 A schematic structural diagram of the third detection component in the appearance detection equipment shown.

[0038] Fig. 9 for Figure 1 A schematic structural diagram of the fourth detection component in the appearance detection equipment shown.

[0039] Fig.10 for Figure 1 A schematic diagram of the structure of the fifth detection component in the appearance detection equipment shown.

[0040] Fig.11 for Figure 1 The assembly diagram of the transfer mechanism and the cleaning component in the appearance inspection equipment shown.

[0041] Fig.12 for Fig.11 Schematic diagram of the structure of the intermediate transfer mechanism.

[0042] Fig.13 for Fig.11 Schematic diagram of the structure of the cleaning component.

[0043] Reference numerals:

[0044] Appearance inspection equipment 10;

[0045] The supporting platform 100, the first light exit hole 110, the second light exit hole 120, the third light exit hole 130, and the fourth light exit hole 140;

[0046] Rotating disc 200, discharge hole 210;

[0047] A first detection assembly 300, a first camera 310, a first light source 320, a second light source 330, a first driving member 340, a first mounting seat 350, a first connecting frame 360, a first connecting arm 361, a second mounting seat 370, a second connecting frame 380, and a second connecting arm 381;

[0048] A second detection assembly 400, a second camera 410, a third light source 420, a dimming member 430, a sliding member 440, a second driving member 450, a third driving member 460, a fourth driving member 470, a third mounting seat 480, and a fourth mounting seat 490;

[0049] A third detection assembly 500, a third camera 510, a fourth light source 520, a fifth light source 530, a fifth driving member 540, a sixth driving member 550, a seventh driving member 560, a fifth mounting seat 570, and a sixth mounting seat 580;

[0050] A fourth detection assembly 600, a fourth camera 610, a sixth light source 620, a seventh mounting seat 630, a seventh light source 640, an eighth mounting seat 650, a third connecting frame 660, a third connecting arm 661, a fourth connecting frame 670, and a fourth connecting arm 671;

[0051] A fifth detection assembly 700, a fifth camera 710, an eighth light source 720, and a ninth mounting seat 730;

[0052] Feeding mechanism 800;

[0053] Feeding mechanism 900;

[0054] Transfer mechanism 1000, mounting frame 1010, transfer platform 1020, eighth driving member 1030, holding assembly 1040, clamping claw 1041;

[0055] Cleaning assembly 1100 , tenth mounting seat 1110 , first blowing member 1120 , second blowing member 1130 , base 1140 , ninth driving member 1150 , supporting frame 1160 , first frame 1161 , second frame 1162 , supporting member 1170 . DETAILED DESCRIPTION

[0056] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0057] In the description of the present 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 the present 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 the present application.

[0058] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0059] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0060] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it 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. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0061] 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 a central 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 a central element at the same time. 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 implementation method.

[0062] See also Figures 1 to 4 , Figure 1 The structure diagram of the appearance inspection device in one embodiment of the present application is shown. An appearance inspection device 10 provided in one embodiment of the present application includes: a carrier 100, a turntable 200 and a first inspection component 300. The turntable 200 is arranged opposite to the carrier 100 and is rotatably connected to the carrier 100. A discharge hole 210 is provided on the turntable 200. The discharge hole 210 passes through the turntable 200 along the rotation axis of the turntable 200. The rotation axis of the turntable 200 is parallel to the arrangement direction of the turntable 200 and the carrier 100. The discharge hole 210 is used to assemble a light-transmitting A workpiece to be inspected (not marked in the figure), a first detection component 300 is arranged along the circumference of the turntable 200, around at least a portion of the turntable 200, the first detection component 300 includes a first camera arranged on the side of the turntable 200 away from the supporting platform 100, a first light source 320 and a second light source 330 are arranged between the turntable 200 and the supporting platform 100, the first camera 310 is configured to photograph the side of the workpiece to be inspected away from the supporting platform 100, and the first light source 320 and the second light source 330 are configured to irradiate light toward different areas on the side of the workpiece to be inspected close to the supporting platform 100.

[0063] In the appearance inspection device 10 of the present embodiment, the tester installs the light-transmissive workpiece to be inspected in the discharge hole 210, and then drives the turntable 200 to rotate around its own rotation axis relative to the supporting platform 100, so that the workpiece to be inspected passes through the first inspection component 300. In the process of the workpiece to be inspected passing through the first inspection component 300, when the workpiece to be inspected in the discharge hole 210 on the turntable 200 moves to between the first camera 310 and the first light source 320, the first light source 320 irradiates light toward the side of the workpiece to be inspected close to the supporting platform 100, and the irradiated light penetrates the workpiece to be inspected. The tester uses the first camera 310 to shoot the area of ​​the workpiece to be inspected that is illuminated by the light emitted by the first light source 320 from the side of the workpiece to be inspected away from the supporting platform 100, so as to identify defects.

[0064] Similarly, when the workpiece to be inspected in the discharge hole 210 on the turntable 200 moves between the first camera 310 and the second light source 330, the second light source 330 irradiates light toward the side of the workpiece to be inspected close to the carrier 100, and the irradiated light penetrates the workpiece to be inspected. The tester uses the first camera 310 to shoot the area of ​​the workpiece to be inspected that is irradiated by the light emitted by the second light source 330 from the side of the workpiece to be inspected away from the carrier 100 to identify defects. Since the first light source 320 and the second light source 330 irradiate light toward different areas on the side of the workpiece to be inspected close to the carrier 100, the first camera 310 can perform defect detection on different areas of the workpiece to be inspected from the side of the workpiece to be inspected away from the carrier 100.

[0065] In summary, in the appearance inspection device 10 of this embodiment, the area of ​​the workpiece to be inspected that is illuminated by light is larger, the first camera 310 can perform defect detection on a larger area of ​​the workpiece to be inspected, and the detection result of the appearance inspection device 10 has a higher accuracy.

[0066] It should be noted that the positions of the first light source 320 and the second light source 330 can be set by the tester according to actual needs. For example, the first light source 320 is set between the first camera 310 and the turntable 200 , and the second light source 330 is set between the turntable 200 and the supporting platform 100 .

[0067] See also Figures 3 to 5 In some embodiments, the first light source 320 includes a first annular light source, and the second light source 330 includes a second annular light source. The central axis of the first annular light source and the central axis of the second annular light source both coincide with the central axis of the discharge hole 210. The inner diameter of the first annular light source is greater than zero, the outer diameter of the first annular light source is smaller than the aperture of the discharge hole 210, the inner diameter of the second annular light source is greater than or equal to the outer diameter of the first annular light source, and the inner diameter of the second annular light source is less than or equal to the inner diameter of the discharge hole 210.

[0068] In this embodiment, when the workpiece to be inspected passes through the first inspection component 300, the staff can turn on the first ring light source and the second ring light source respectively to illuminate different areas on the side of the workpiece to be inspected close to the support platform 100, thereby ensuring that the first camera 310 can perform defect detection on different areas of the workpiece to be inspected from the side of the workpiece to be inspected away from the support platform 100.

[0069] In some embodiments, a second light exit hole 120 is provided on a side of the support platform 100 close to the turntable 200. The second light exit hole 120 is arranged along the circumference of the turntable 200 and around at least a portion of the turntable 200. The second light exit hole 120 penetrates the support platform 100 along the arrangement direction of the turntable 200 and the support platform 100. The first light source 320 is located between the second light exit hole 120 and the turntable 200, and the second light source 330 is located in the second light exit hole 120.

[0070] In some embodiments, the appearance inspection device 10 includes a second mounting seat 370 and a second connecting frame 380. The second mounting seat 370 is slidably connected to the side of the support platform 100 away from the turntable 200 in a direction perpendicular to the axial direction of the second light output hole 120. The second connecting frame 380 is slidably connected to the second mounting seat 370 in a direction parallel to the axial direction of the second light output hole 120. A second connecting arm 381 is provided on the second connecting frame 380. The second light source 330 is slidably connected to the second connecting arm 381. The movement direction of the second mounting seat 370 and the axial direction of the second light output hole 120 are both arranged to intersect with the movement direction of the second light source 330.

[0071] In some embodiments, the appearance inspection device 10 includes a rotation drive module, a fixed end of the rotation drive module is arranged on the carrier 100, and a movable end of the rotation drive module is connected to the turntable 200, and the rotation drive module is configured to drive the turntable 200 to rotate around its own rotation axis.

[0072] In some embodiments, a plurality of discharge holes 210 are provided on the turntable 200 , and the plurality of discharge holes 210 are arranged around the rotation axis of the turntable 200 , and a light-transmissive workpiece to be inspected is installed in at least one of the discharge holes 210 .

[0073] Please continue reading Figures 3 to 5 In some embodiments, the first camera 310 is spaced apart from the turntable 200, and the first detection assembly 200 includes a first driving member 340, which is disposed on a side of the turntable 200 away from the supporting platform 100, and the movable end of the first driving member 340 is connected to the first camera 310, and the first driving member 340 is configured to drive the first camera 310 to move toward or away from the turntable 200.

[0074] In this embodiment, the first driving member 340 drives the first camera 310 to move toward or away from the turntable 200, so that the distance between the first camera 310 and the workpiece to be inspected is adjustable, thereby ensuring that the workpiece to be inspected is always in the focus of the first camera 310, thereby improving the clarity of the shooting results of the first camera 310.

[0075] In some embodiments, the first driving member 340 is configured to drive the first camera 310 to move closer to or farther from the turntable 200 along the axial direction of the discharge hole 210 .

[0076] In some embodiments, the first detection assembly 300 includes a first mounting seat 350, which extends axially along the discharge hole 210. The first mounting seat 350 is located on a side of the support platform 100 close to the turntable 200, and is arranged along the circumference of the turntable 200, around at least a portion of the turntable 200, and the fixed end of the first driving member 340 is connected to the first mounting seat 350.

[0077] In some embodiments, the first detection component 300 includes a first connecting frame 360, which is slidably connected to the first mounting seat 350 along the axial direction of the discharge hole 210, and a first connecting arm 361 is provided on the first connecting frame 360. The first light source 320 is close to the side of the first camera 310 and is slidably connected to the first connecting arm 361 along a direction perpendicular to the axial direction of the discharge hole 210.

[0078] See also Figure 3 , Figure 6 as well as Figure 7 In some embodiments, the appearance inspection device 10 includes a second inspection component 400, the first inspection component 300 and the second inspection component 400 are arranged along the circumference of the turntable 200, the second inspection component 400 includes a second camera 410 arranged on the side of the turntable 200 away from the carrier 100, and a third light source 420 arranged on the side of the turntable 200 close to the carrier 100. The second camera 410 is configured to photograph the side of the workpiece to be inspected away from the carrier 100, and the third light source 420 is configured to uniformly irradiate light toward the side of the workpiece to be inspected close to the carrier 100.

[0079] In this embodiment, the tester installs the light-transmissive workpiece to be inspected in the discharge hole 210, and then drives the turntable 200 to rotate around its own rotation axis relative to the supporting platform 100, so that the workpiece to be inspected passes through the second detection component 400. In the process of the workpiece to be inspected passing through the second detection component 400, when the workpiece to be inspected in the discharge hole 210 on the turntable 200 moves to between the second camera 410 and the third light source 420, the third light source 420 uniformly irradiates light toward the side of the workpiece to be inspected close to the supporting platform 100, and the irradiated light penetrates the workpiece to be inspected. The tester uses the second camera 410 to shoot the area of ​​the workpiece to be inspected that is illuminated by the light emitted by the third light source 420 from the side of the workpiece to be inspected away from the supporting platform 100, so as to identify defects.

[0080] In some embodiments, the third light source 420 includes a planar light source.

[0081] In some embodiments, a first light exit hole 110 is provided on a side of the support platform 100 close to the turntable 200, and the first light exit hole 110 and the second light exit hole 120 are arranged along the circumference of the turntable 200. The first light exit hole 110 penetrates the support platform 100 along the arrangement direction of the turntable 200 and the support platform 100, and the third light source 420 is located on a side of the first light exit hole 110 away from the turntable 200. The light emitted by the third light source 420 passes through the first light exit hole 110 and irradiates toward the side of the workpiece to be inspected close to the support platform 100.

[0082] Please continue reading Figure 3 , Figure 6 as well as Figure 7 In some embodiments, the side of the third light source 420 close to the turntable 200 is a light-emitting surface (not shown in the figure), and the light-emitting surface is configured to emit light toward the workpiece to be inspected. The second detection component 400 includes a dimming element 430, which is arranged between the light-emitting surface and the turntable 200. The dimming element 430 is slidably connected to the third light source 420 in a direction perpendicular to the axial direction of the discharge hole 210. The dimming element 430 is configured to adjust the light emitted by the light-emitting surface so that the light emitted by the light-emitting surface is uniformly irradiated toward the workpiece to be inspected in the discharge hole 210 in a direction parallel to the axial direction of the discharge hole 210.

[0083] In this embodiment, since the dimming element 430 is slidably connected to the third light source 420 in a direction perpendicular to the axial direction of the discharge hole 210, the contact area between the dimming element 430 and the light-emitting surface is variable, and the tester can increase or decrease the contact area between the dimming element 430 and the light-emitting surface by driving the dimming element 430 to move relative to the third light source 420 according to actual needs. When the dimming element 430 contacts different areas of the light-emitting surface, the light emitted from the contact area between the light-emitting surface and the dimming element 430 will penetrate the dimming element 430, and under the adjustment of the dimming element 430, along the direction parallel to the axial direction of the discharge hole 210, evenly illuminate different target detection areas on the workpiece to be inspected in the discharge hole 210, and finally penetrate the target detection area on the workpiece to be inspected, and the positive projection of the target detection area of ​​the workpiece to be inspected on the light-emitting surface overlaps with the contact area between the light-emitting surface and the dimming element 430.

[0084] It should be noted that, during the entire process described above, the tester will use the second camera 410 to photograph the target inspection area in the workpiece to be inspected from the side of the workpiece to be inspected away from the support platform 100 to identify defects.

[0085] In some embodiments, the light modulator 430 may be a polarizer or a diffuse reflector.

[0086] Please continue reading Figure 3 , Figure 6 as well as Figure 7In some embodiments, the second detection component 400 includes a second driving member 450, which is disposed on a side of the third light source 420 away from the turntable 200, and the movable end of the second driving member 450 is connected to the dimming member 430. The second driving member 450 is configured to drive the dimming member 430 to enter or exit the gap between the light-emitting surface and the turntable 200 in a direction perpendicular to the axial direction of the discharge hole 210.

[0087] In this embodiment, by setting the second driving member 450 to drive the dimming member 430 to enter or exit the gap between the light-emitting surface and the turntable 200 in a direction perpendicular to the axis of the discharge hole 210, the contact area between the dimming member 430 and the light-emitting surface can be changed, thereby ensuring that the light emitted from the contact area between the light-emitting surface and the dimming member 430 passes through the dimming member 430 and then, under the adjustment of the dimming member 430, is evenly irradiated to different target detection areas on the workpiece to be inspected in the discharge hole 210 in a direction parallel to the axis of the discharge hole 210, ultimately facilitating the second camera 410 to shoot different target detection areas in the workpiece to be inspected from the side of the workpiece to be inspected away from the supporting platform 100.

[0088] In some embodiments, the second detection component 400 includes a sliding member 440, which is slidably connected to the third light source 420 in a direction perpendicular to the axis of the discharge hole 210, and the movable end of the second driving member 450 is connected to the sliding member 440, and the dimming member 430 is connected to the sliding member 440. The second driving member 450 is configured to drive the sliding member 440 to move in a direction perpendicular to the axis of the discharge hole 210, so as to drive the dimming member 430 to enter or exit the gap between the light-emitting surface and the turntable 200 in a direction perpendicular to the axis of the discharge hole 210.

[0089] Please continue reading Figure 3 , Figure 6 as well as Figure 7 In some embodiments, the second detection component 400 includes a third driving member 460 disposed on the side of the third light source 420 away from the turntable 200, the fixed end of the second driving member 450 and the third light source 420 are both connected to the movable end of the third driving member 460, and the third driving member 460 is configured to drive the second driving member 450 and the third light source 420 to move in a direction perpendicular to the movement direction of the dimming member 430 and the axial direction of the discharge hole 210.

[0090] In this embodiment, the third driving member 460 drives the second driving member 450 and the third light source 420 to move relative to the workpiece to be inspected in the discharge hole 210 in a direction perpendicular to the moving direction of the dimming member 430 and the axial direction of the discharge hole 210 .

[0091] In some embodiments, the second detection component 400 includes a fourth driving member 470 disposed on the side of the third light source 420 away from the turntable 200, the movable end of the fourth driving member 470 is connected to the third driving member 460, and the fourth driving member 470 is configured to drive the third driving member 460 to move in a direction parallel to the movement direction of the dimming member 430.

[0092] In some embodiments, the second detection component 400 includes a third mounting seat 480, which extends along the arrangement direction of the turntable 200 and the supporting platform 100. The third mounting seat 480 is arranged on the side of the supporting platform 100 close to the turntable 200. The third mounting seat 480 and the first mounting seat 350 are arranged along the circumference of the turntable 200. The second camera 410 and the turntable 200 are arranged at an axial interval along the discharge hole 210, and the second camera 410 is slidably connected to the third mounting seat 480 along the axial direction of the discharge hole 210.

[0093] In some embodiments, the second detection component 400 includes a linear drive module (not shown in the figure), the fixed end of the linear drive module is arranged on the third mounting seat 480, the movable end of the linear drive module is connected to the second camera 410, and the linear drive module is configured to drive the second camera 410 to approach or move away from the turntable 200 in a direction parallel to the axis of the discharge hole 210.

[0094] In some embodiments, the second detection assembly 400 includes a fourth mounting seat 490 , which is disposed on a side of the support platform 100 away from the turntable 200 , and the fourth driving member 470 is slidably connected to the fourth mounting seat 490 along the axial direction of the discharge hole 210 .

[0095] See also Figure 3 and Figure 8 In some embodiments, the appearance inspection device 10 includes a third inspection component 500, the first inspection component 300 and the third inspection component 500 are arranged along the circumference of the turntable 200, the third inspection component 500 includes a third camera 510, a plurality of fourth light sources 520 and a plurality of light blocking plates (not shown) arranged on the side of the turntable 200 away from the carrier 100, the third camera 510 is configured to photograph the side of the workpiece to be inspected away from the carrier 100, the plurality of fourth light sources 520 are arranged around the outer side of the third camera 510 along a direction parallel to the rotation axis of the turntable 200, the plurality of fourth light sources 520 are configured to irradiate light toward the side of the workpiece to be inspected away from the carrier 100 in different directions, the plurality of light blocking plates are arranged corresponding to the plurality of fourth light sources 520, and each light blocking plate is configured to block the light reflected by the workpiece to be inspected from shining on the fourth light source 520 corresponding to the light blocking plate.

[0096] In this embodiment, multiple fourth light sources 520 are configured to irradiate light along different directions toward the side of the workpiece to be inspected that is away from the supporting platform 100, so that the third camera 510 can better photograph the side of the workpiece to be inspected that is away from the supporting platform 100. In this process, multiple light blocking plates are arranged corresponding to the multiple fourth light sources 520, and each light blocking plate blocks the light reflected by the workpiece to be inspected from shining on the fourth light source 520 corresponding to the light blocking plate.

[0097] In some embodiments, the fourth light source 520 includes a line light source.

[0098] In some embodiments, the third camera 510 and the turntable 200 are arranged at an axial interval along the discharge hole 210, and the third detection assembly 500 includes a fifth driving member 540, the movable end of the fifth driving member 540 is connected to the third camera 510, and the fifth driving member 540 is configured to drive the third camera 510 to approach or move away from the turntable 200 in a direction parallel to the axial direction of the discharge hole 210.

[0099] In some embodiments, the third detection component 500 includes a fifth mounting seat 570, which extends along the arrangement direction of the turntable 200 and the support platform 100. The fifth mounting seat 570 is arranged on the side of the support platform 100 close to the turntable 200. The fifth mounting seat 570 and the first mounting seat 350 are arranged along the circumference of the turntable 200, and the fixed end of the fifth driving member 540 is arranged on the fifth mounting seat 570.

[0100] In some embodiments, each fourth light source 520 is rotatably connected to the fifth mounting seat 570 and is configured to rotate around a direction parallel to the axial direction of the discharge hole 210 .

[0101] In some embodiments, the third detection component 500 includes multiple connecting parts (not marked in the figure), and the multiple connecting parts are arranged corresponding to the multiple fourth light sources 520. Each connecting part is rotatably connected to the fifth mounting seat 570 around an axis parallel to the axial direction of the discharge hole 210, and each fourth light source 520 is rotatably connected to the corresponding connecting part around an axis perpendicular to the axial direction of the discharge hole 210, and the rotation axes of each fourth light source 520 are arranged to intersect.

[0102] In some embodiments, the third detection component 500 includes a plurality of sixth driving members 550, and the plurality of sixth driving members 550 are arranged corresponding to the plurality of fourth light sources 520, the fixed end of each sixth driving member 550 is arranged on the corresponding fourth light source 520, the movable end of each sixth driving member 550 is connected to the corresponding light blocking plate, and the sixth driving member 550 is configured to drive the corresponding light blocking plate to rotate, and the rotation axis of each fourth light source 520 and the rotation axis of the corresponding connecting member are both arranged to intersect with the rotation axis of the corresponding light blocking plate.

[0103] See also Figure 3 and Fig. 9 In some embodiments, the third detection component 500 includes a fifth light source 530, which is disposed on a side of the turntable 200 close to the supporting platform 100. The side of the fifth light source 530 close to the turntable 200 is a light emitting surface (not marked in the figure), and the light emitting surface is configured to irradiate light toward a side of the workpiece to be inspected in the discharge hole 210 close to the supporting platform 100.

[0104] In this embodiment, the tester installs the light-transmissive workpiece to be inspected in the discharge hole 210, and then drives the turntable 200 to rotate around its own rotation axis relative to the supporting platform 100, so that the workpiece to be inspected passes through the third detection component 500. In the process of the workpiece to be inspected passing through the third detection component 500, when the workpiece to be inspected in the discharge hole 210 on the turntable 200 moves to between the third camera 510 and the fifth light source 530, the fifth light source 530 irradiates light toward the side of the workpiece to be inspected close to the supporting platform 100, and the irradiated light penetrates the workpiece to be inspected. The tester uses the third camera 510 to shoot the area of ​​the workpiece to be inspected that is illuminated by the light emitted by the fifth light source 530 from the side of the workpiece to be inspected away from the supporting platform 100, so as to identify defects.

[0105] In some embodiments, the fifth light source 530 includes a panel light source.

[0106] In some embodiments, a third light exit hole 130 is provided on a side of the support platform 100 close to the turntable 200, the third light exit hole 130 penetrates the support platform 100 along the arrangement direction of the turntable 200 and the support platform 100, the third light exit hole 130 and the second light exit hole 120 are arranged along the circumference of the turntable 200, and the fifth light source 530 is arranged on the side of the third light exit hole 130 away from the turntable 200.

[0107] In some embodiments, the third detection assembly 500 includes a seventh driving member 560 , the movable end of which is connected to the fifth light source 530 , and the seventh driving member 560 is configured to drive the fifth light source 530 to move in a direction perpendicular to the axial direction of the discharge hole 210 .

[0108] In some embodiments, the third detection assembly 500 includes a sixth mounting seat 580, which is located on the side of the support platform 100 away from the turntable 200, and the fixed end of the seventh driving member 560 is slidably connected to the sixth mounting seat 580 along a direction parallel to the axis of the discharge hole 210.

[0109] See also Figure 3 and Fig. 9In some embodiments, the appearance inspection device 10 includes a fourth inspection component 600, the first inspection component 300 and the fourth inspection component 600 are arranged along the circumference of the turntable 200, the fourth inspection component 600 includes a fourth camera 610 arranged between the turntable 200 and the carrier 100, and a sixth light source 620 arranged on the side of the turntable 200 away from the carrier 100, the sixth light source 620 is spaced apart from the turntable 200, the fourth camera 610 is configured to photograph the side of the workpiece to be inspected close to the carrier 100, and the sixth light source 620 is configured to irradiate light toward the side of the workpiece to be inspected away from the carrier 100.

[0110] In this embodiment, the tester installs the light-transmissive workpiece to be inspected in the discharge hole 210, and then drives the turntable 200 to rotate around its own rotation axis relative to the supporting platform 100, so that the workpiece to be inspected passes through the fourth detection component 600. In the process of the workpiece to be inspected passing through the fourth detection component 600, when the workpiece to be inspected in the discharge hole 210 on the turntable 200 moves to between the fourth camera 610 and the sixth light source 620, the sixth light source 620 irradiates light toward the side of the workpiece to be inspected away from the supporting platform 100, and the irradiated light penetrates the workpiece to be inspected. The tester uses the fourth camera 610 to shoot the area of ​​the workpiece to be inspected that is illuminated by the light emitted by the sixth light source 620 from the side of the workpiece to be inspected close to the supporting platform 100 to identify defects.

[0111] In some embodiments, a fourth light exit hole 140 is provided on a side of the support platform 100 close to the turntable 200, and the fourth light exit hole 140 penetrates the support platform 100 along the arrangement direction of the turntable 200 and the support platform 100. The first light exit hole 110, the second light exit hole 120, the third light exit hole 130 and the fourth light exit hole 140 are arranged along the circumference of the turntable 200. The light emitted by the sixth light source 620 toward the side of the workpiece to be inspected away from the support platform 100 penetrates the workpiece to be inspected and enters the fourth light exit hole 140. The fourth camera 610 is arranged on the side of the fourth light exit hole 140 away from the turntable 200.

[0112] In some embodiments, the fourth camera 610 is slidably connected to the support platform 100 along a direction parallel to the axial direction of the discharge hole 210 .

[0113] In some embodiments, the fourth detection assembly 600 includes a seventh mounting seat 630 , which is disposed on a side of the support platform 100 away from the turntable 200 , and the fourth camera 610 is slidably connected to the seventh mounting seat 630 along a direction parallel to the axis of the discharge hole 210 .

[0114] In some embodiments, the fourth detection component 600 includes a linear drive, a fixed end of which is disposed on a seventh mounting seat 630, a movable end of which is connected to the fourth camera 610, and the linear drive is configured to drive the fourth camera 610 to move in a direction parallel to the axis of the discharge hole 210.

[0115] In some embodiments, the sixth light source 620 includes a third annular light source, the central axis of the third annular light source coincides with the central axis of the discharge hole 210 , the inner diameter of the third annular light source is greater than or equal to 0, and the outer diameter of the third annular light source is smaller than the aperture of the discharge hole 210 .

[0116] In some embodiments, the fourth detection assembly 600 includes an eighth mounting seat 650, which extends along the arrangement direction of the turntable 200 and the supporting platform 100, and the eighth mounting seat 650 is arranged on the side of the supporting platform 100 close to the turntable 200. The eighth mounting seat 650 and the fifth mounting seat 570 are arranged along the circumference of the turntable 200, and the third annular light source and the turntable 200 are axially spaced apart from each other along the discharge hole 210, and the third annular light source is slidably connected to the eighth mounting seat 650 along a direction parallel to the axial direction of the discharge hole 210.

[0117] In some embodiments, the fourth detection component 600 includes a third connecting frame 660, which is located on the side of the turntable 200 away from the supporting platform 100, and the third connecting frame 660 is slidably connected to the eighth mounting seat 650 along a direction parallel to the axis of the discharge hole 210, and the sixth light source 620 is connected to the third connecting frame 660.

[0118] In some embodiments, the third connecting frame 660 includes a third connecting arm 661 , and the sixth light source 620 is slidably connected to the third connecting arm 661 along a direction perpendicular to the axial direction of the discharge hole 210 .

[0119] In some embodiments, the third connecting arm 661 includes a seventh light source 640 , and the sixth light source 620 and the seventh light source 640 are respectively configured to irradiate light toward different areas on a side of the workpiece to be inspected away from the supporting platform 100 .

[0120] In some embodiments, the seventh light source 640 includes a fourth ring light source, the central axis of the fourth ring light source coincides with the central axis of the third ring light source, the inner diameter of the fourth ring light source is greater than or equal to the outer diameter of the third ring light source, and the outer diameter of the fourth ring light source is less than or equal to the aperture of the discharge hole 210.

[0121] In some embodiments, the fourth detection component 600 includes a fourth connecting frame 670, which is located on the side of the turntable 200 away from the supporting platform 100, and the fourth connecting frame 670 is slidably connected to the eighth mounting seat 650 along a direction parallel to the axis of the discharge hole 210, and the seventh light source 640 is connected to the fourth connecting frame 670.

[0122] In some embodiments, a fourth connecting arm 671 is disposed on the fourth connecting frame 670 , and the seventh light source 640 is slidably connected to the fourth connecting arm 671 along a direction perpendicular to the axial direction of the discharge hole 210 .

[0123] In other embodiments, the second detection assembly 400 , the first detection assembly 300 , the third detection assembly 500 , and the fourth detection assembly 600 are sequentially disposed around a portion of the turntable 200 along the circumference of the turntable 200 .

[0124] In some embodiments, the appearance inspection device 10 includes a fifth inspection component 700 , and the fifth inspection component 700 and the fourth inspection component 600 are arranged in a direction perpendicular to the axial direction of the discharge hole 210 .

[0125] In other embodiments, the fifth detection component 700 and the supporting platform 100 are arranged at intervals, and the arrangement direction of the fifth detection component 700 and the supporting platform 100 is parallel to the arrangement direction of the fifth detection component 700 and the fourth detection component 600. The fifth detection component 700 includes an eighth light source 720 and a fifth camera 710 arranged in sequence along the axial direction of the discharge hole 210, and the eighth light source 720 is configured to emit light in a direction away from the fifth camera 710.

[0126] In some embodiments, the fifth detection assembly 700 includes a ninth mounting seat 730, the ninth mounting seat 730 and the support platform 100 are arranged in a direction perpendicular to the axis of the discharge hole 210, and the eighth light source 720 and the fifth camera 710 are both slidably connected to the ninth mounting seat 730 in a direction parallel to the axis of the discharge hole 210.

[0127] In some embodiments, the appearance inspection device 10 includes a loading mechanism 800 and a unloading mechanism 900. The unloading mechanism 900 is located on the side of the fifth inspection component 700 away from the fourth inspection component 600. The unloading mechanism 900 is used to receive the inspected workpiece. The loading mechanism 800 and the unloading mechanism 900 are arranged at intervals. The loading mechanism 800 is used to provide the workpiece to be inspected. The axial direction of the discharge hole 210 and the arrangement direction of the fifth inspection component 700 and the fourth inspection component 600 are both arranged to intersect with the arrangement direction of the loading mechanism 800 and the unloading mechanism 900.

[0128] See also Figure 1 and Figure 2 ,as well as Figures 11 to 13In some embodiments, the appearance inspection device 10 includes a transfer mechanism 1000, which is located between the loading mechanism 800 and the unloading mechanism 900. The transfer mechanism 1000 is configured to transport the workpiece to be inspected in the loading mechanism 800 to the discharge hole 210 of the turntable 200, and after the workpiece to be inspected passes through the fourth inspection component 600, remove the workpiece to be inspected in the discharge hole 210, transport the workpiece to be inspected through the fifth inspection component 700, and place the workpiece to be inspected into the unloading mechanism 900.

[0129] In some embodiments, the transfer mechanism 1000 includes a mounting frame 1010 and two holding components 1040. The mounting frame 1010 is located between the feeding mechanism 800 and the unloading mechanism 900. Among the two holding components 1040, one holding component 1040 is located on the side of the mounting frame 1010 close to the feeding mechanism 800 and is slidably connected to the mounting frame 1010 in a direction parallel to the arrangement direction of the fifth detection component 700 and the fourth detection component 600, so as to hold the loading mechanism 800 in the loading mechanism 800. The workpiece to be inspected is transported to the discharge hole 210 of the turntable 200; among the two holding components 1040, the other holding component 1040 is located on the side of the mounting frame 1010 close to the unloading mechanism 900, and is slidably connected to the mounting frame 1010 along a direction parallel to the arrangement direction of the fifth detection component 700 and the fourth detection component 600, so as to remove the workpiece to be inspected in the discharge hole 210 after the workpiece to be inspected passes through the fourth detection component 600, transport the workpiece to be inspected through the fifth detection component 700, and place the workpiece to be inspected into the unloading mechanism 900.

[0130] In some embodiments, the transfer mechanism 1000 includes two transfer platforms 1020 , and the two transfer platforms 1020 are arranged in one-to-one correspondence with two holding components 1040 . Each holding component 1040 is connected to the corresponding transfer platform and is slidably connected to the mounting frame 1010 through the corresponding transfer platform 1020 .

[0131] In some embodiments, each supporting component 1040 includes two clamps 1041, and the two clamps 1041 are spaced apart in a direction parallel to the arrangement direction of the fifth detection component 700 and the fourth detection component 600, and each clamp 1041 is configured to be slidably connected to the corresponding transfer platform 1020 in a direction parallel to the arrangement direction of the fifth detection component 700 and the fourth detection component 600.

[0132] In some embodiments, an eighth driving member 1030 is provided on each transfer platform 1020, the fixed end of the eighth driving member 1030 is connected to the corresponding transfer platform 1020, the movable end of the eighth driving member 1030 is connected to the corresponding holding component 1040, and the eighth driving member 1030 is configured to drive the two clamping jaws 1041 in the corresponding holding component 1040 to move closer to or away from each other.

[0133] In some embodiments, the appearance inspection equipment 10 includes a cleaning component 1100, which is located between the loading mechanism 800 and the supporting platform 100. The cleaning component 1100 is configured to: during the process of the transfer mechanism 1000 transporting the workpiece to be inspected in the loading mechanism 800 to the discharge hole 210 of the turntable 200, the cleaning component 1100 is configured to remove dust from the outer surface of the workpiece to be inspected.

[0134] In some embodiments, the cleaning assembly 1100 includes a tenth mounting seat 1110, a first blowing member 1120 and a second blowing member 1130, the tenth mounting seat 1110 is located between the loading mechanism 800 and the supporting platform 100, the first blowing member 1120 and the second blowing member 1130 are arranged on the tenth mounting seat 1110 at intervals along a direction parallel to the axial direction of the discharge hole 210, the first blowing member 1120 is configured to blow air toward one side of the workpiece to be inspected along the axial direction of the discharge hole 210, and the second blowing member 1130 is configured to blow air toward the other side of the workpiece to be inspected along the axial direction of the discharge hole 210.

[0135] In some embodiments, the first blowing member 1120 is configured to be slidably connected to the tenth mounting seat 1110 along a direction parallel to the axial direction of the discharge hole 210, and the first blowing member 1120 blows air in a direction away from the second blowing member 1130; the second blowing member 1130 is configured to be slidably connected to the tenth mounting seat 1110 along a direction parallel to the axial direction of the discharge hole 210, and the second blowing member 1130 blows air in a direction away from the first blowing member 1120.

[0136] In some embodiments, the cleaning component 1100 includes a base 1140 and a supporting frame 1160, the base 1140 is connected to the tenth mounting seat 1110, the supporting frame 1160 is slidably connected to the base 1140 along the arrangement direction of the loading mechanism 800 and the unloading mechanism 900, and the transfer mechanism 1000 is configured to transport the workpiece to be inspected in the loading mechanism 800 to the supporting frame 1160, and after the dust on the surface of the workpiece to be inspected is cleaned, the workpiece to be inspected is moved to the discharge hole 210 of the turntable 200.

[0137] In some embodiments, the cleaning component 1100 includes a ninth driving member 1150, the fixed end of the ninth driving member 1150 is disposed on the base 1140, the movable end of the ninth driving member 1150 is connected to the supporting frame 1160, and the ninth driving member 1150 is configured to drive the supporting frame 1160 to move along the arrangement direction of the loading mechanism 800 and the unloading mechanism 900.

[0138] In some embodiments, the supporting frame 1160 includes two first frames 1161 and two second frames 1162, the first frames 1161 extend along the arrangement direction of the fifth detection component 700 and the fourth detection component 600, the two first frames 1161 are arranged at intervals along the arrangement direction of the loading mechanism 800 and the unloading mechanism 900, the second frames 1162 extend along the arrangement direction of the loading mechanism 800 and the unloading mechanism 900, the two second frames 1162 are arranged between the two first frames 1161, at intervals along the arrangement direction of the fifth detection component 700 and the fourth detection component 600, and both ends of each second frame 1162 are correspondingly connected to the two first frames 1161; the movable end of the ninth driving member 1150 is connected to the first frame 1161 or the second frame 1162.

[0139] In some embodiments, the cleaning assembly 1100 includes two holding members 1170, and the two holding members 1170 are arranged at intervals along the extension direction of the first frame 1161. The two holding members 1170 are arranged corresponding to the two second frames 1162. Each holding member 1170 is slidably connected to the corresponding second frame 1162 along the extension direction of the first frame 1161, and the workpiece to be inspected is clamped between the two holding members 1170.

[0140] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0141] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. An appearance inspection device, characterized in that: include: Loading platform; A turntable is arranged opposite to the bearing platform and is rotatably connected to the bearing platform; a discharge hole is provided on the turntable, the discharge hole penetrates the turntable along the rotation axis of the turntable, the rotation axis of the turntable is parallel to the arrangement direction of the turntable and the bearing platform, and the discharge hole is used to assemble a light-transmissive workpiece to be inspected; A first detection component is arranged along the circumference of the turntable and around at least a portion of the turntable. The first detection component includes a first camera arranged on a side of the turntable away from the supporting platform, and a first light source and a second light source are arranged between the turntable and the supporting platform. The first camera is configured to photograph the side of the workpiece to be inspected away from the supporting platform, and the first light source and the second light source are configured to irradiate light toward different areas on a side of the workpiece to be inspected close to the supporting platform.

2. The appearance inspection device according to claim 1, characterized in that: The first light source includes a first annular light source, the second light source includes a second annular light source, and the central axis of the first annular light source and the central axis of the second annular light source both coincide with the central axis of the discharge hole; The inner diameter of the first annular light source is greater than zero, the outer diameter of the first annular light source is smaller than the aperture of the discharge hole, the inner diameter of the second annular light source is greater than or equal to the outer diameter of the first annular light source, and the inner diameter of the second annular light source is less than or equal to the inner diameter of the discharge hole.

3. The appearance inspection device according to claim 1 or 2, characterized in that: The first camera is spaced apart from the turntable; The first detection component includes a first driving member, which is arranged on a side of the turntable away from the supporting platform. The movable end of the first driving member is connected to the first camera, and the first driving member is configured to drive the first camera to move toward or away from the turntable.

4. The appearance inspection device according to claim 1, characterized in that: The appearance inspection device includes a second inspection component, and the first inspection component and the second inspection component are arranged along the circumference of the turntable; The second detection component includes a second camera arranged on the side of the turntable away from the supporting platform, and a third light source arranged on the side of the turntable close to the supporting platform. The second camera is configured to photograph the side of the workpiece to be inspected away from the supporting platform, and the third light source is configured to uniformly irradiate light toward the side of the workpiece to be inspected close to the supporting platform.

5. The appearance inspection device according to claim 4, characterized in that: A side of the third light source close to the turntable is a light emitting surface, and the light emitting surface is configured to emit light toward the workpiece to be inspected; The second detection component includes a dimming element, which is arranged between the light-emitting surface and the turntable. The dimming element is slidably connected to the third light source along a direction perpendicular to the axial direction of the discharge hole. The dimming element is configured to adjust the light emitted by the light-emitting surface so that the light emitted by the light-emitting surface is uniformly irradiated onto the workpiece to be inspected in the discharge hole along a direction parallel to the axial direction of the discharge hole.

6. The appearance inspection device according to claim 5, characterized in that: The second detection assembly includes a second driving member, and the second driving member is arranged on a side of the third light source away from the rotating disk; The movable end of the second driving member is connected to the dimming member, and the second driving member is configured to drive the dimming member to enter or exit the gap between the light-emitting surface and the turntable along a direction perpendicular to the axial direction of the discharge hole.

7. The appearance inspection device according to claim 6, characterized in that: The second detection assembly includes a third driving member disposed on a side of the third light source facing away from the turntable; The fixed end of the second driving member and the third light source are both connected to the movable end of the third driving member, and the third driving member is configured to drive the second driving member and the third light source to move in a direction perpendicular to the movement direction of the dimming member and the axial direction of the discharge hole.

8. The appearance inspection device according to claim 1, characterized in that: The appearance inspection device includes a third inspection component, and the first inspection component and the third inspection component are arranged along the circumference of the turntable; The third detection component includes a third camera arranged on the side of the turntable away from the supporting platform, a plurality of fourth light sources and a plurality of light blocking plates, the third camera is configured to photograph the side of the workpiece to be inspected away from the supporting platform, the plurality of fourth light sources are arranged around the outside of the third camera along a direction parallel to the rotation axis of the turntable, the plurality of fourth light sources are configured to irradiate light toward the side of the workpiece to be inspected away from the supporting platform along different directions, the plurality of light blocking plates are arranged corresponding to the plurality of fourth light sources, and each of the light blocking plates is configured to block the light reflected by the workpiece to be inspected from shining on the fourth light source corresponding to the light blocking plate.

9. The appearance inspection device according to claim 8, characterized in that: The third detection component includes a fifth light source, which is arranged on a side of the turntable close to the supporting platform. The side of the fifth light source close to the turntable is a light emitting surface, and the light emitting surface is configured to irradiate light toward a side of the workpiece to be inspected in the discharge hole close to the supporting platform.

10. The appearance inspection device according to claim 1, characterized in that: The appearance inspection device includes a fourth inspection component, and the first inspection component and the fourth inspection component are arranged along the circumference of the turntable; The fourth detection component includes a fourth camera arranged between the turntable and the supporting platform, and a sixth light source arranged on the side of the turntable away from the supporting platform, the sixth light source is spaced apart from the turntable, the fourth camera is configured to photograph the side of the workpiece to be inspected close to the supporting platform, and the sixth light source is configured to irradiate light toward the side of the workpiece to be inspected away from the supporting platform.

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