Appearance inspection device

Abstract

The utility model discloses an appearance detection device, include: first rotation module, equal angle is provided with a plurality of first detection station, and the first fixture is set respectively to every first detection station on the first rotation module, and a plurality of visual inspection components are set respectively to the outside of first rotation module corresponding every first detection station, and the first fixture is driven to rotate 90 degrees every position of first rotation module first detection station changes a station. The utility model discloses appearance detection device can make the different surface of element towards the outside of first rotation module through setting rotatable first fixture, and the position setting of visual inspection component is optimized, reduces the mechanism interference, and guarantees the comprehensiveness and accuracy of appearance detection simultaneously.

Description

Technical Field

[0001] This utility model belongs to the field of testing equipment, and in particular relates to an appearance inspection device. Background Technology

[0002] In the automated inspection of electronic components, a turntable conveyor is typically used to sequentially transport the electronic components to each inspection station. However, since the electronic components are fixed on the turntable, one surface of each component always faces the inside of the turntable, while the remaining surfaces need to be photographed by a vision inspection module.

[0003] Existing inspection systems often employ multiple cameras arranged around a turntable to cover different surfaces of electronic components. However, this layout has significant drawbacks: First, multiple vision inspection modules need to be installed at different locations around the turntable, especially cameras on the sides, which need to be close to the turntable edge. This can easily interfere with the turntable mechanism, affecting its normal rotation and even leading to equipment jamming or collision risks. Second, due to space constraints, some inspection modules need to be installed at an angle, resulting in image distortion or occlusion, affecting inspection accuracy. Furthermore, the complex camera layout not only increases the difficulty of equipment debugging but also makes optical calibration and light source matching more challenging, further reducing the stability and consistency of the inspection. Utility Model Content

[0004] The purpose of this invention is to provide a compact appearance inspection device with better detection results.

[0005] To achieve the above objectives, the appearance inspection device of this utility model includes:

[0006] The first rotating module has multiple first detection stations set at equal angles, and each first detection station on the first rotating module is respectively equipped with a first fixture.

[0007] Multiple visual inspection components are respectively set on the outside of the first rotating module for each first inspection station;

[0008] Each time the first rotating module changes position, the first fixture is driven to rotate 90 degrees.

[0009] In one embodiment of the appearance inspection device of this utility model, the first rotating module includes a turntable and a rotating drive component. The rotating drive component drives the turntable to rotate, and a plurality of first clamps are rotated at equal angles on the upper surface of the turntable.

[0010] In one embodiment of the appearance inspection device of this utility model, the driving end of the rotary drive is provided with a drive gear, and a plurality of driven gears mesh with the outer peripheral surface of the drive gear. The driven gears are rotatably mounted on the turntable, and the driven gears are connected to the first clamp via a synchronous belt drive.

[0011] In one embodiment of the appearance inspection device of this utility model, the driven gear is rotatably mounted on a turntable via a transmission shaft, the transmission shaft is provided with a first synchronous pulley, the first clamp is provided with a second synchronous pulley, and the first synchronous pulley and the second synchronous pulley are connected by a synchronous belt.

[0012] In one embodiment of the appearance inspection device of this utility model, the first clamp holds the element from below.

[0013] In one embodiment of the appearance inspection device of this utility model, at least eight first inspection stations are set, namely, loading station, pressing station, first surface inspection station, top surface inspection station, second surface inspection station, third surface inspection station, fourth surface inspection station, and transfer station.

[0014] In one embodiment of the appearance inspection device of this utility model, a first inclined surface inspection position is provided between the third surface inspection position and the fourth surface inspection position, and a second inclined surface inspection position is provided between the fourth surface inspection position and the material transfer position.

[0015] In one embodiment of the appearance inspection device of this utility model, the visual inspection components of the first surface inspection position, the second surface inspection position, the third surface inspection position, the fourth surface inspection position, the first inclined surface inspection position, and the second inclined surface inspection position are respectively disposed on the outside of the first rotating module, and the visual inspection component of the top surface inspection position is disposed above the first rotating module.

[0016] In one embodiment of the appearance inspection device of this utility model, the first clamp has a pair of grippers, the pair of grippers are kept in a normally closed state under the action of an elastic member, and the grippers can be driven to open at the loading position and the transfer position.

[0017] In one embodiment of the appearance inspection device of this utility model, the first clamp further includes two connecting rods, one end of the two connecting rods is hinged, and the other end is respectively connected to the gripper. The hinged end of the connecting rod can be driven by a push rod to move in the vertical direction.

[0018] In summary, the appearance inspection device of this utility model optimizes the position setting of the visual inspection components, reduces mechanical interference, and ensures the comprehensiveness and accuracy of appearance inspection by setting a rotatable first clamp to allow different surfaces of the component to face the outside of the first rotating module. Attached Figure Description

[0019] Figure 1 This is a top view of an embodiment of the present utility model;

[0020] Figure 2 This is a structural diagram of an embodiment of the present utility model;

[0021] Figure 3yes Figure 1 Structural diagram of the first rotating module;

[0022] Figure 4 yes Figure 1 A structural diagram of the first rotating module from another angle;

[0023] Figure 5 yes Figure 1 Structural diagram of the first fixture;

[0024] Figure 6 yes Figure 5 Exploded view of the first clamp;

[0025] In the diagram: 100, First rotating module; 110, First inspection station; 111, Loading station; 112, Pressing station; 113, First surface inspection station; 114, Top surface inspection station; 115, Second surface inspection station; 116, Third surface inspection station; 117, Fourth surface inspection station; 118, Transfer station; 119, First inclined surface inspection station; 1191, Second inclined surface inspection station; 120, First clamp; 121, Guide post; 122, Gripper; 123, Base; 1231, Slide groove; 124, Guide rod; 125, Mounting block; 126, Slider; 127, Connecting rod; 128, Top rod; 129, Elastic element; 130, Pressing module; 140, Arc plate; 150, Turntable; 160. Rotary drive component; 161. Drive gear; 162. Driven gear; 163. Drive shaft; 164. First synchronous pulley; 165. Second synchronous pulley; 166. Synchronous belt; 170. Lifting cylinder; 200. Second rotating module; 210. Second inspection station; 211. Bottom surface inspection station; 212. Defective product unloading station; 213. Good product unloading station; 214. Lead wire bending inspection station; 215. Inner lead wire inspection station; 216. Outer lead wire inspection station; 220. Second clamp; 221. Guide rod; 222. Elastic element; 230. Pressing cylinder; 300. Vision inspection component; 310. Camera; 320. Light source; 400. Worktable; 410. Mounting bracket. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0027] This utility model's appearance inspection device is used to inspect the outer surface of electronic components. In this embodiment, the electronic component includes a main body and leads. It is necessary to inspect six surfaces of the main body and defects in the leads. The six surfaces of the main body include a first surface and a second surface, a third surface and a fourth surface, and a top surface and a bottom surface, all arranged opposite each other. In other embodiments, defects may be inspected only on the six surfaces of the electronic component, depending on its actual condition.

[0028] like Figure 1 As shown in the figure, in one embodiment of the present invention, the electronic component testing equipment includes two rotating modules, namely a first rotating module 100 and a second rotating module 200, which can be driven to rotate and sequentially pass the component under test through multiple visual inspection components 300 for appearance inspection. The two rotating modules are staggered in height, so that the component under test can be transferred from the first rotating module 100 to the second rotating module 200. The first rotating module 100 has multiple first inspection stations 110 arranged at equal angles. Each first inspection station 110 on the first rotating module 100 is provided with a first clamp 120, which fixes the component under test from below. The second rotating module 200 has multiple second inspection stations 210 arranged at equal angles. Each second inspection station 210 on the second rotating module 200 is provided with a second clamp 220, which fixes the component under test from above. The first inspection station 110 and the second inspection station 210 of the first rotation module 100 and the second rotation module 200 are arranged to overlap, allowing the component under test to be transferred from the first fixture 120 to the second fixture 220 via the overlapping first inspection station 110 and second inspection station 210. Multiple vision inspection components 300 are provided on the outer side of both the first inspection station 110 and the second inspection station 210, for sequentially inspecting the component under test during repositioning. This arrangement not only allows for more rational placement of the multiple vision inspection components but also enables precise inspection of different surfaces of the component under test. Furthermore, the first rotation module 100 and the second rotation module 200 can simultaneously transport and inspect multiple components under test, improving inspection efficiency.

[0029] The first rotating module 100 and a plurality of visual inspection components 300 disposed around it form an appearance inspection device for inspecting the five surfaces of the element under test, excluding the bottom surface.

[0030] Each time the first rotating module 100 changes position, the first fixture 120 is driven to rotate 90 degrees, thereby causing the component under test to rotate around its own axis. While revolving around the center of the first rotating module 100, the component under test can rotate around its own axis, so that different surfaces of the component under test can face the outside of the first rotating module 100. Multiple vision inspection components 300 can be placed on the outside of the first rotating module 100 to avoid space constraints or interference between the vision inspection components 300 and the first rotating module 100.

[0031] At least eight first inspection stations 110 are configured, namely, loading station 111, pressing station 112, first surface inspection station 113, top surface inspection station 114, second surface inspection station 115, third surface inspection station 116, fourth surface inspection station 117, and transfer station 118. Each first inspection station 110 is fixed in position relative to the first rotating module 100; only the first clamp 120 rotates with the first rotating module 100, changing position to a different first inspection station 110. Loading station 111 is used to receive the component under test; pressing station 112 is used to position the component under test; first surface inspection station 113, top surface inspection station 114, second surface inspection station 115, third surface inspection station 116, and fourth surface inspection station 117 are used to inspect five different surfaces of the component under test, respectively. The transfer station 118 coincides with the second detection station 210 of one of the second rotating modules 200, and is used to transfer the component to be tested from the first rotating module 100 to the second rotating module 200. Since the second clamp 220 fixes the component to be tested from above, the component to be tested is detected on the bottom surface under the drive of the second rotating module 200.

[0032] At least four second inspection stations 210 are configured, namely a transfer station 118, a bottom surface inspection station 211, a defective product unloading station 212, and a good product unloading station 213. Each second inspection station 210 is fixed in position relative to the second rotating module 200; only the second fixture 220 rotates with the second rotating module 200, moving to different second inspection stations 210. The transfer station 118 is an overlapping inspection station of the first rotating module 100 and the second rotating module 200, used to receive the component under test transferred from the first rotating module 100; the bottom surface inspection station 211 is used to inspect the bottom surface of the component under test; the defective product unloading station 212 and the good product unloading station 213 are used to unload defective and good products, respectively.

[0033] In this embodiment, there are 12 first inspection stations 110 and 12 second inspection stations 210. The first rotation module 100, the second rotation module 200, and the first fixture 120 are all driven to rotate clockwise. This not only adapts to the production cycle, but also adds multiple other first inspection stations 110 and second inspection stations 210 to improve inspection accuracy and classify defective products for unloading.

[0034] A first inclined detection position 119 is provided between the third detection position 116 and the fourth detection position 117, and a second inclined detection position 1191 is provided between the fourth detection position 117 and the transfer position 118. The other two first detection positions 110 after the transfer position 118 of the first rotating module 100 are empty.

[0035] The loading position 111 is used to receive the component under test (DUT). A loading robot (not shown in the figure) loads the DUT onto the first clamp 120 of the loading position 111. The first clamp 120 holds the lead wire of the DUT. A pressing position 112, located above the first clamp 120, is provided with a pressing module 130. The pressing module 130 is used to press the DUT firmly against the first clamp 120 from above to prevent the DUT from being improperly clamped and causing testing errors. The visual inspection components 300 of the first surface inspection position 113, the second surface inspection position 115, the third surface inspection position 116, the fourth surface inspection position 117, the first inclined surface inspection position 119, and the second inclined surface inspection position 1191 are respectively disposed on the outside of the first rotating module 100. Since the component under test can rotate around its own axis while revolving around the center of the first rotating module 100, the aforementioned multiple visual inspection components 300 can respectively correspond to the first surface, second surface, third surface, fourth surface, first edge, and second edge of the component under test. Since the visual inspection components 300 are all facing the surface to be inspected when the surface is defective, some defects cannot be identified. The visual inspection components 300 of the first inclined surface inspection position 119 and the second inclined surface inspection position 1191 inspect the surface of the component under test from the first edge and the second edge, and inspect the surface of the component under test from the inclined direction, which can detect defects that cannot be identified when facing the inspection surface directly, thereby improving the inspection quality. The visual inspection component 300 of the top surface inspection position 114 is located above the first rotating module 100 and is capable of detecting defects on the top surface of the component under test.

[0036] Between the transfer station 118 and the bottom detection station 211, there is an empty material station, a lead wire bending detection station 214, and an inner lead wire detection station 215. Between the bottom detection station 211 and the defective product unloading station 212, there is an outer lead wire detection station 216.

[0037] The vision inspection components for lead wire bending detection position 214, inner lead wire detection position 215, and outer lead wire detection position 216 are respectively located on the outside of the second rotating module 200. The next station after the material transfer position 118 of the second rotating module 200 is set as an empty material position to facilitate the setting of the vision inspection component for lead wire bending detection position 214 and avoid overcrowding.

[0038] Since the second clamp 220 of the second rotating module 200 cannot rotate, cameras need to be positioned from different directions to inspect the inner and outer surfaces of the lead wire. The second clamp 220 fixes the component under test from above, facilitating the placement of the camera on the lower inner side of the second rotating module 200. The visual inspection components 300 of both the inner lead wire detection position 215 and the outer lead wire detection position 216 include a camera 310 and a light source 320. The camera 310 of the inner lead wire detection position 215 is positioned on the lower inner side of the second rotating module 200, and the light source 320 of the inner lead wire detection position 215 is positioned on the outer side of the second rotating module 200. The camera 310 of the outer lead wire detection position 216 is positioned on the outer side of the second rotating module 200, and the light source 320 of the outer lead wire detection position 216 is positioned on the lower inner side of the second rotating module 200.

[0039] The visual inspection component 300 of the bottom surface inspection position 211 is located below the second rotating module 200 and can detect defects on the bottom surface of the component under test.

[0040] The defective product unloading position 212 can be set to multiple positions, and the products are unloaded according to the type of defect. In this embodiment, there are five defective product unloading positions 212, which are located between the external lead detection position 216 and the good product unloading position 213. The good products that have passed the inspection are finally unloaded from the good product unloading position 213.

[0041] like Figure 2 As shown, since multiple vision inspection components 300 are arranged in a ring on the outside of the first rotating module 100, in order to prevent other components from interfering with the inspection when multiple vision inspection components 300 are inspecting the component under test, an arc plate 140 is provided on the first rotating module 100 between the first surface inspection position 113 and the transfer position 118.

[0042] The first rotating module 100 is disposed on the upper surface of the worktable 400, and the second rotating module 200 is supported by the mounting bracket 410 and mounted on the worktable 400. The first rotating module 100 and the second rotating module 200 are staggered so that the second clamp 220 at the transfer position 118 can pick up the component to be tested from above the first clamp 120. Multiple second clamps 220 are slidably mounted on the second rotating module 200 by guide rods 221 and mechanical springs 222. The mounting bracket 410 is provided with a pressing cylinder 230 at the transfer position 118. At the transfer position 118, the pressing cylinder 230 drives the second clamps 220 to press down and pick up the component to be tested from the first clamp 120.

[0043] like Figure 3 , Figure 4As shown, the first rotating module 100 includes a turntable 150 and a rotating drive 160. The rotating drive 160 drives the turntable 150 to rotate, causing multiple first clamps 120 to shift positions. The multiple first clamps 120 are equidistantly mounted on the upper surface of the turntable 150 and can be driven to rotate around their own axes. The driving end of the rotating drive 160 is provided with a driving gear 161, and the outer circumferential surface of the driving gear 161 meshes with multiple driven gears 162. There are 12 driven gears 162, corresponding to the number of first clamps 120. The driven gears 162 are rotatably mounted on the turntable 150 via a transmission shaft 163. The first clamps 120 are rotatably mounted on the turntable 150 via a guide post 121. The outer surfaces of the transmission shaft 163 and the guide post 121 are respectively provided with a first synchronous pulley 164 and a second synchronous pulley 165, which are connected by a synchronous belt 166. While the turntable 150 is changing positions, it drives the first clamp 120 to rotate via the drive gear 161, driven gear 162, first synchronous pulley 164, second synchronous pulley 165, and synchronous belt 166.

[0044] like Figure 5 , Figure 6 As shown, the first clamp 120 has a pair of grippers 122. The pair of grippers 122 are kept in a normally closed state under the action of an elastic member 129. The pair of grippers 122 can be driven to open at the loading position 111 and the transfer position 118.

[0045] The first clamp 120 also includes a base 123. Two guide rods 124 are horizontally arranged through the base 123. A pair of grippers 122 are slidably mounted on the two guide rods 124 via mounting blocks 125. The base 123 is provided with a vertically extending groove 1231, which is recessed inward to form a receiving space. A slider 126 is slidably arranged in the groove 1231. The slider 126 is L-shaped. An elastic element 129 is provided in the receiving space. One end of the elastic element 129 abuts against the base 123, and the other end abuts against the upper surface of the L-shaped bend of the slider 126. The elastic element 129 is a compression spring. The slider 126 is connected to the pair of grippers 122 via two connecting rods 127. One end of the two connecting rods 127 is hinged to the slider 126, and the other end is connected to the mounting block 125 respectively. The base 123 is rotatably mounted on the turntable 150 via the guide post 121. The guide post 121 is a tubular structure with a hollow space inside. A push rod 128 is set in the hollow space to push the slider 126. The second synchronous wheel 165 is set on the outer surface of the guide post 121.

[0046] Under normal conditions, the slider 126 is located at the bottom of the slide groove 1231 under the action of the compression spring, and the two connecting rods 127 pull the two mounting blocks 125 to the closest distance, thereby driving a pair of grippers 122 to remain in a normally closed state.

[0047] Refer again Figure 3 A lifting cylinder 170 is provided below the turntable 150 and at the loading position 111 and the transfer position 118. The lifting cylinder 170 is used to drive the push rod 128 to rise, thereby driving a pair of grippers 122 to open, so as to receive the test component at the loading position 111 and unload it at the transfer position 118.

[0048] In other embodiments, the elastic element 129 can also be disposed between the two mounting blocks 125. The elastic element 129 is preferably a tension spring, used to control a pair of grippers 122 to remain closed under normal conditions. The hinged ends of the two connecting rods 127 are connected to the top rod, which can also achieve the same effect of keeping the pair of grippers 122 closed when the top rod 128 is not subjected to force.

[0049] The working process of the appearance inspection device in this embodiment is as follows:

[0050] The lifting cylinder 170 of the loading position 111 extends the pushing rod 128, and a pair of grippers 122 are driven to separate from each other. The loading robot loads the component to be tested into the first clamp 120 of the loading position 111. The lifting cylinder 170 of the loading position 111 retracts, the pushing rod 128 loses its pushing force, and under the action of the elastic element 129, the pair of grippers 122 move closer to each other to clamp the component to be tested.

[0051] The rotary drive 160 drives the turntable 150 to change position. Under the action of the drive gear 161, driven gear 162, first synchronous pulley 164, second synchronous pulley 165, and synchronous belt 166, the first clamp 120 rotates 90 degrees. The first clamp 120 rotates to the pressing position 112, and the pressing module 130 presses down and positions the component to be tested.

[0052] The first rotating module 100 rotates and changes position, the first clamp 120 rotates to the first surface detection position 113, and at the same time, the first clamp 120 rotates 90 degrees, so that the first surface of the component under test faces the vision detection component 300, and detects and records the defects.

[0053] The first rotating module 100 rotates and changes position, the first clamp 120 rotates to the top surface detection position 114, and at the same time, the first clamp 120 rotates 90 degrees, and the vision detection component 300 above the component under test detects and records the defects on the top surface.

[0054] The first rotating module 100 rotates and changes position, the first clamp 120 rotates to the second surface detection position 115, and at the same time, the first clamp 120 rotates 90 degrees, so that the second surface of the component under test faces the vision detection component 300, detects defects and records them;

[0055] The first rotating module 100 rotates and changes position, the first clamp 120 rotates to the third surface detection position 116, and at the same time, the first clamp 120 rotates 90 degrees, so that the third surface of the component under test faces the vision detection component 300, detects defects and records them;

[0056] The first rotating module 100 rotates and changes position, the first clamp 120 rotates to the first inclined detection position 119, and at the same time, the first clamp 120 rotates 90 degrees, so that the first edge of the component under test faces the vision detection component 300, and the oblique detection defect is recorded.

[0057] The first rotating module 100 rotates and changes position, the first clamp 120 rotates to the fourth surface detection position 117, and at the same time, the first clamp 120 rotates 90 degrees, so that the fourth surface of the component under test faces the vision detection component 300, and detects and records the defects.

[0058] The first rotating module 100 rotates and changes position, the first clamp 120 rotates to the second inclined detection position 1191, and at the same time, the first clamp 120 rotates 90 degrees, so that the second edge of the component under test faces the vision detection component 300, and the oblique detection defect is recorded.

[0059] The first rotating module 100 rotates and changes position, the first clamp 120 rotates to the material transfer position 118, at the same time, the first clamp 120 rotates 90 degrees, the lifting cylinder 170 of the material transfer position 118 extends the pushing rod 128, and a pair of grippers 122 are driven to separate from each other.

[0060] The pressing cylinder 230 of the second rotating module 200 drives the second clamp 220 to press down, and the second clamp 220 picks up the component to be tested at the material transfer position 118.

[0061] The second rotating module 200 rotates and changes position, and the second clamp 220 rotates to the empty material position of the second rotating module 200;

[0062] The second rotating module 200 rotates and changes position, the second clamp 220 rotates to the lead wire bending detection position 214, and the vision inspection component 300 detects and records the defects of the lead wire.

[0063] The second rotating module 200 rotates and changes position, the second clamp 220 rotates to the inner lead detection position 215, and the vision inspection component 300 detects and records the defects on the lead surface near the spindle side of the second rotating module 200.

[0064] The second rotating module 200 rotates and changes position, the second fixture 220 rotates to the bottom surface detection position 211, and the vision inspection component 300 under the component under test detects and records the defects on the top surface.

[0065] The second rotating module 200 rotates and changes position, the second clamp 220 rotates to the outer lead detection position 216, and the vision inspection component 300 detects and records the defects on the lead surface on the side away from the spindle of the second rotating module 200.

[0066] The second rotating module 200 rotates and changes position, passing through five defective product unloading positions and one good product unloading position in sequence, and releases the test component according to the recorded information of the test component.

[0067] The above embodiments are merely preferred embodiments provided to fully illustrate the present utility model, and the protection scope of the present utility model is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present utility model are all within the protection scope of the present utility model. The protection scope of the present utility model is defined by the claims.

Claims

1. An appearance inspection device, characterized in that, include: The first rotating module has multiple first detection stations set at equal angles, and each first detection station on the first rotating module is respectively equipped with a first fixture. Multiple visual inspection components are respectively set on the outside of the first rotating module for each first inspection station; Each time the first rotating module changes position, the first fixture is driven to rotate 90 degrees.

2. The appearance inspection device as described in claim 1, characterized in that, The first rotating module includes a turntable and a rotating drive component. The rotating drive component drives the turntable to rotate, and multiple first clamps are arranged at equal angles on the upper surface of the turntable.

3. The appearance inspection device as described in claim 2, characterized in that, The drive end of the rotary drive component is provided with a drive gear, and multiple driven gears mesh on the outer circumferential surface of the drive gear. The driven gears are rotatably mounted on the turntable, and the driven gears are connected to the first clamp via a synchronous belt drive.

4. The appearance inspection device as described in claim 3, characterized in that, The driven gear is rotatably mounted on the turntable via a transmission shaft. The transmission shaft is equipped with a first synchronous pulley, and the first clamp is equipped with a second synchronous pulley. The first synchronous pulley and the second synchronous pulley are connected by a synchronous belt.

5. The appearance inspection device as described in claim 1, characterized in that, The first clamp holds the element in place from below.

6. The appearance inspection device as described in claim 1, characterized in that, The number of the first inspection stations is at least eight, namely, loading station, pressing station, first surface inspection station, top surface inspection station, second surface inspection station, third surface inspection station, fourth surface inspection station, and transfer station.

7. The appearance inspection device as described in claim 6, characterized in that, A first inclined detection position is provided between the third detection position and the fourth detection position, and a second inclined detection position is provided between the fourth detection position and the material transfer position.

8. The appearance inspection device as described in claim 7, characterized in that, The visual detection components of the first surface detection position, the second surface detection position, the third surface detection position, the fourth surface detection position, the first inclined surface detection position, and the second inclined surface detection position are respectively disposed on the outside of the first rotating module, and the visual detection component of the top surface detection position is disposed above the first rotating module.

9. The appearance inspection device as described in claim 1, characterized in that, The first clamp has a pair of jaws, which are normally closed under the action of an elastic element, and the jaws can be driven to open at the loading position and the transfer position.

10. The appearance inspection device as described in claim 9, characterized in that, The first clamp also includes two connecting rods, one end of which is hinged and the other end is respectively connected to the gripper. The hinged end of the connecting rod can be driven by a push rod to move in the vertical direction.

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