Square battery blue film AOI detection device

Abstract

The utility model relates to the field of visual inspection, in particular to a square battery blue film AOI (automatic optical inspection) device which comprises a first visual inspection module, a second visual inspection module and a third visual inspection module. The second visual detection module is arranged at the upper ends of the first visual detection module and the third visual detection module, and the cache platform is arranged at the adjacent position of the second visual detection module and the third visual detection module.

Description

Technical Field

[0001] The utility model relates to the field of visual inspection, in particular to a square battery blue film AOI inspection device. Background Art

[0002] At present, square batteries need to be coated with a layer of blue film during production to play the role of insulation, waterproofing, and aesthetics. Among them, after coating, the blue film of some batteries will have various appearance defects such as bubbles on the film surface, electrolyte on the film surface, foreign matter in the film, wrinkles, shell pits, scratches, and damage, which will affect the normal use of the battery. Therefore, it is necessary to inspect the appearance defects of the battery before and after the blue film is coated.

[0003] 1. The manual inspection method consumes a lot of manpower and time. It takes about 18 seconds to inspect a battery on average, and the square batteries need to be manually tested for insulation and withstand voltage one by one. The inspection efficiency is low, the labor cost is high, and there is a possibility of false detection and missed detection due to subjective factors such as visual fatigue.

[0004] 2. Use manual inspection and machine inspection together. Manual inspection uses a high-precision camera to magnify the surface features of the battery blue film through the display screen, and the quality of the feature points is manually judged. First of all, the existing machines generally use a single camera for inspection. Single-sided imaging cannot distinguish between bubbles on the film surface and foreign matter in the film, which is easy to misdetect. Secondly, the product compatibility is poor. The inherent mode is only applicable to a single battery product. When the battery model is changed, it needs to be re-debugged;

[0005] 3. In order to improve the detection accuracy, the existing machines are made larger to install more detection stations, which takes up a lot of space and the detection process is long and time-consuming. Utility Model Content

[0006] The technical problem to be solved by the utility model is: in order to overcome the deficiencies in the prior art, a square battery blue film AOI detection device is provided.

[0007] The technical solution adopted by the utility model to solve its technical problems is: a square battery blue film AOI detection device, including a first visual detection module, a second visual detection module and a third visual detection module, the first visual detection module and the third visual detection module are arranged side by side, the second visual detection module is arranged on the upper ends of the first visual detection module and the third visual detection module, and a cache platform is arranged adjacent to the second visual detection module and the third visual detection module.

[0008] Furthermore, the first visual inspection module includes a first transfer assembly below the first camera assembly, the first transfer assembly is adjacent to the transfer conveyor assembly in the feeding mechanism, after the product is positioned at the front section of the first transfer assembly, the left side, right side and top side inspections are completed in the process of moving to the rear section of the first transfer assembly, and the rear end of the first transfer assembly is adjacent to the second visual inspection module;

[0009] The first camera assembly includes a first camera bracket, a left side light source and a left side camera are installed on the left side of the first camera bracket, a right side light source and a right side camera are installed on the right side of the first camera bracket, and a first top surface light source, a first top surface camera and a first scanner are installed on the top of the first camera bracket.

[0010] Furthermore, the first transfer assembly includes a first linear slide rail, on which a first transfer slide is slidably arranged, the product is placed on the first transfer slide rail, and the first transfer slide rail drives the product to move along the first linear slide rail.

[0011] First side push positioners are installed on both sides of the first linear slide rail. After the product is placed on the first transfer slide, the first side push positioners on both sides are activated to position the product on the first transfer slide.

[0012] Furthermore, the second visual inspection module includes a second camera assembly and a second transfer assembly for detecting the bottom surface of the product, the second transfer assembly includes a bracket, a bottom surface inspection clamp is movably set on one side of the bracket adjacent to the first visual inspection module, a cache transport clamp is movably set on the other side of the bracket, and the second camera assembly is arranged below the bracket where the bottom surface inspection clamp is located. During the process of the bottom surface inspection clamp clamping the product and moving to the side where the cache transport clamp is located, the second camera assembly completes the bottom surface inspection, and a rotating pitch changing assembly is arranged below the bracket where the bottom surface inspection clamp and the cache transport clamp are adjacent. The bottom surface inspection clamp places the product that has completed the bottom surface inspection on the rotating pitch changing assembly, and the product is rotated and pitch changed and transferred to the cache platform through the cache transport clamp.

[0013] Furthermore, the second camera assembly includes a first bottom surface illumination light source, a second bottom surface illumination light source, a first bottom surface camera and a second bottom surface camera. The first bottom surface illumination light source is horizontally arranged, and the light is vertically irradiated upward. At least one through hole is provided in the middle area of ​​the first bottom surface illumination light source to accommodate the first bottom surface camera to take an image. The first bottom surface camera takes a picture vertically upward through the through hole.

[0014] A second bottom surface illuminating light source is arranged in parallel and at intervals on the side of the first bottom surface illuminating light source, a second bottom surface camera is arranged in parallel and at intervals on another side of the second bottom surface illuminating light source, and the first bottom surface illuminating light source, the second bottom surface illuminating light source and the second bottom surface camera are arranged in parallel and at intervals.

[0015] The second bottom surface illumination light source includes two light emitting components. The first light emitting component close to the second bottom surface camera is horizontally arranged and the light is vertically irradiated upward. The second light emitting component close to the first bottom surface illumination light source is tilted toward the direction where the second bottom surface camera is located, and the light is tilted upward toward the direction where the second bottom surface camera is located.

[0016] The second bottom surface photographing camera is arranged obliquely toward the position where the second bottom surface irradiation light source is located.

[0017] Furthermore, the third visual inspection module includes a third camera assembly and a third transfer assembly arranged below the third camera assembly, the front end of the third transfer assembly is adjacent to the buffer platform, and the rear end of the third transfer assembly is adjacent to the unloading mechanism. After the product is positioned at the front section of the third transfer assembly, the front, back and top edges are inspected in the process of moving to the rear section of the third transfer assembly.

[0018] The third camera assembly includes a third camera bracket, a front light source and a front camera are installed on the left side of the third camera bracket, a rear light source and a rear camera are installed on the right side of the first camera bracket, and a third top surface light source, a third top surface camera and a third scanner are installed on the top of the third camera bracket.

[0019] Furthermore, the third transfer assembly is an up and down lifting circular transfer structure, including a second linear slide and a third linear slide arranged in parallel and spaced apart, a first alternating transfer platform is slidably arranged on the second linear slide, a second alternating transfer platform is slidably arranged on the third linear slide, a second side push positioner is arranged above the feeding ends of the second linear slide and the third linear slide, and the positioning position of the second side push positioner is located above the middle interval between the second linear slide and the third linear slide.

[0020] Furthermore, the rotating pitch changing assembly includes two rotating platforms, one of which is fixedly installed and the other is slidably arranged on a linear slide rail. The pitch changing cylinder is arranged between the two rotating platforms. The extension and retraction of the pitch changing cylinder drives the rotating platform to move back and forth along the linear slide rail to change the pitch. Each rotating platform includes a base plate, the bottom of the base plate is connected to the output end of the rotating motor, and a plurality of clamps for clamping the product are arranged on the base plate.

[0021] Furthermore, at least one groove for accommodating product placement is provided on the cache table of the cache platform, and the inner contour of the groove is the same as the outer contour of the product.

[0022] The beneficial effects of the utility model are as follows: the utility model is a square battery blue film AOI detection device,

[0023] In response to the above problem one: regarding the low efficiency, missed detection, and false detection of manual detection, the fully automatic detection of this application solves the problems of low detection efficiency, high labor costs, false detection, and missed detection.

[0024] In response to the second problem mentioned above: a time-sharing imaging linear array / area array system is combined, and two different cameras are used to take pictures of the product surface, forming two visual images for comparative analysis, so as to distinguish between bubbles on the membrane surface and foreign matter inside the membrane, reduce false detections, and effectively improve the yield rate.

[0025] In response to the third problem mentioned above: an improved layout is adopted to shorten the length of the whole machine and reduce the floor space of the whole machine.

[0026] In summary, the utility model has the characteristics of high efficiency, high accuracy, small footprint, reasonable design and labor saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is a structural schematic diagram of the utility model.

[0029] Figure 2 yes Figure 1 The arrows in the figure are schematic diagrams of material flow.

[0030] Figure 3 It is a structural schematic diagram of the first transfer component in the first visual inspection module 21 of the utility model.

[0031] Figure 4 It is a structural schematic diagram of the first camera assembly in the first visual inspection module 21 of the present invention.

[0032] Figure 5 It is a structural schematic diagram of the second transfer assembly in the second visual inspection module 22 of the present invention.

[0033] Figure 6 It is a structural schematic diagram of the second camera assembly in the second visual detection module 22 of the present invention.

[0034] Figure 7 It is a structural schematic diagram of the rotary pitch-changing component of the utility model.

[0035] Figure 8 It is a structural schematic diagram of the cache platform of the utility model.

[0036] Fig. 9 This is a schematic diagram of the structure of the third transfer component in the third visual inspection module 23 of the present invention. Figure 1 .

[0037] Fig.10 This is a schematic diagram of the structure of the third transfer component in the third visual inspection module 23 of the present invention. Figure 2 .

[0038] Fig.11 It is a structural schematic diagram of the third camera assembly in the third visual detection module 23 of the present invention.

[0039] Fig.12 It is a structural schematic diagram of a material unloading and handling manipulator of the utility model.

[0040] In the figure: 21. first visual inspection module, 210. first linear slide rail, 211. first camera bracket, 212. left side illumination light source, 213. left side camera, 214. right side illumination light source, 215. right side camera, 216. first top surface illumination light source, 217. first top surface camera, 218. first scanning dock, 219. first transfer slide, 220. first side push positioner,

[0041] 22. second visual inspection module, 221. bracket, 222. bottom surface inspection clamp, 223. cache handling clamp, 224. first bottom surface illumination light source, 225. second bottom surface illumination light source, 2251. first light emitting component, 2252. second light emitting component, 226. first bottom surface camera, 227. second bottom surface camera,

[0042] 23. The third visual inspection module, 231. The third camera bracket, 232. The front light source, 233. The front camera, 234. The rear light source, 235. The rear camera, 236. The third top surface light source, 237. The third top surface camera, 238. The third scanning dock, 239. The second linear slide rail, 240. The first alternating transfer platform, 241. The second alternating transfer platform, 242. The third linear slide rail, 243. The second side push positioner, 244. The positioning member. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0044] Figures 1 to 12 The square battery blue film AOI detection device shown includes a first visual detection module 21, a second visual detection module 22 and a third visual detection module 23. The first visual detection module 21 and the third visual detection module 23 are installed side by side, and the second visual detection module 22 is installed on the upper ends of the first visual detection module 21 and the third visual detection module 23. Such an installation can shorten the length of the whole machine and reduce the footprint.

[0045] The first visual inspection module 21 includes a first camera assembly for inspecting the left, right and top surfaces of the product 4 and a first transfer assembly installed below the first camera assembly. The first camera assembly includes a first camera bracket 211. A left side illumination light source 212 and a left side camera 213 are installed on the left side of the first camera bracket 211. A right side illumination light source 214 and a right side camera 215 are installed on the right side of the first camera bracket 211. A first top surface illumination light source 216, a first top surface camera 217 and a first scanning terminal 218 are installed on the top of the first camera bracket 211.

[0046] The first transfer assembly includes a first linear slide 210, on which a first transfer slide 219 is slidably mounted, and the product 4 is placed on the first transfer slide 219. First side push positioners 220 are mounted on both sides of the first linear slide 210. After the product 4 is placed on the first transfer slide 219, the first side push positioners 220 on both sides are actuated to position the product 4 on the first transfer slide 219, and then the clamping assembly on the first transfer slide 219 is actuated to clamp the product 4, and after clamping, the product 4 is driven to move along the first linear slide 210. During the movement, when the product 4 passes through the first camera assembly After the inspection of the left, right and top surfaces is completed, the first scanning terminal 218 scans the barcode information on the product 4 and transmits it to the terminal for easy query later; the first camera assembly and the first transfer assembly are installed up and down to save space. Secondly, the first side-push positioner 220 is installed above one end of the first linear slide rail 210, which can also save space for installing the positioner. Finally, multiple groups of light sources and cameras are installed on a bracket, which also saves space compared to the current installation along the length direction. The design of the camera and light source can be done in one step, and there is no need to splice multiple pictures in sequence, which also saves time in image processing.

[0047] The second visual inspection module 22 includes a second camera assembly and a second transfer assembly for inspecting the bottom surface of the product 4, the second transfer assembly includes a bracket 221, a bottom surface inspection clamp 222 is movably installed on one side of the bracket 221 adjacent to the first visual inspection module, a cache transport clamp 223 is movably installed on the other side of the bracket 221, and a second camera assembly is installed below the bracket 221 where the bottom surface inspection clamp 222 is located, the second camera assembly includes a first bottom surface illumination light source 224, a second bottom surface illumination light source 225, a first bottom surface camera 226 and a second bottom surface camera 227, the first bottom surface illumination light source 224 is installed horizontally, and the light is irradiated vertically upward, two through holes are provided in the middle area of ​​the first bottom surface illumination light source 224, and a first bottom surface camera 226 is installed below each through hole, and the first bottom surface camera 226 takes pictures vertically upward through the through hole, A second bottom surface illumination light source 225 is installed at intervals in parallel to the side of a bottom surface illumination light source 224, and a second bottom surface camera 227 is installed at intervals in parallel to the other side of the second bottom surface illumination light source 225. The first bottom surface illumination light source 224, the second bottom surface illumination light source 225 and the second bottom surface camera 227 are installed at intervals in parallel. The second bottom surface illumination light source 225 includes two light-emitting components. The first light-emitting component 2251, which is close to the second bottom surface camera 227, is installed horizontally and the light is irradiated vertically upward. The second light-emitting component 2252, which is close to the first bottom surface illumination light source 224, is inclined in the direction of the second bottom surface camera 227, and the light is irradiated upward in the direction of the second bottom surface camera 227. This design adopts a combination of an area array camera and a line scan camera, and the light source emission surface is also optimized. There is no blind spot in illumination and imaging, thereby improving detection accuracy.

[0048] When the bottom surface detection clamp 222 clamps the product 4 and moves to the side where the buffer handling clamp 223 is located, the second camera assembly completes the bottom surface detection, and a rotating pitch-changing assembly is installed below the bracket 221 at the junction of the bottom surface detection clamp 222 and the buffer handling clamp 223. The bottom surface detection clamp 222 places the product 4 that has completed the bottom surface detection into the rotating pitch-changing assembly, and the product 4 is rotated and pitch-changed and then transported to the buffer platform through the buffer handling clamp 223;

[0049] The rotating pitch-changing assembly includes two rotating platforms, one of which is fixedly installed and the other is slidably installed on the linear slide 50. The pitch-changing cylinder 51 is installed between the two rotating platforms. The extension and retraction of the pitch-changing cylinder 51 drives the rotating platform to move back and forth along the linear slide 50 to change the pitch. Each rotating platform includes a base plate 52. The bottom of the base plate 52 is connected to the output end of the rotating motor 53. A plurality of clamping claws 54 for clamping the product 4 are installed on the base plate 52.

[0050] The cache platform is installed at the junction of the second visual inspection module and the third visual inspection module. Two grooves 60 are provided on the cache table of the cache platform for accommodating the taking and placing of the product 4. The inner contour of the groove 60 is the same as the outer contour of the product 4. The product 4 is placed in the groove 60 for positioning. When the robot grasps the product 4 without considering the offset error, the robot does not need to position the product 4 again after grasping it.

[0051] The third visual inspection module 23 includes a third camera bracket 231 and a third transfer assembly installed below the third camera assembly. A front irradiation light source 232 and a front camera 233 are installed on the left side of the third camera bracket 231. A rear irradiation light source 234 and a rear camera 235 are installed on the right side of the third camera bracket 231. A third top surface irradiation light source 236, a third top surface camera 237 and a third scanning terminal 238 are installed on the top of the third camera bracket 231. The third top surface irradiation light source 236 and the third top surface camera 237 are used to shoot the four edges of the top surface of the product.

[0052] The front end of the third transfer assembly is adjacent to the buffer platform, and the rear end of the third transfer assembly is adjacent to the unloading mechanism 3. The third transfer assembly is an up-and-down lifting circular transfer structure, including a second linear slide 239 and a third linear slide 242 installed in parallel and spaced relation. The first alternating transfer platform 240 is slidably installed on the second linear slide 239, and the second alternating transfer platform 241 is slidably installed on the third linear slide 242. A second side push positioner 243 is installed above the feeding end of the second linear slide 239 and the third linear slide 242. The positioning position of the second side push positioner 243 is located above the middle interval between the second linear slide 239 and the third linear slide 242. The first alternating transfer platform 240 and the second alternating transfer platform 241 both have cylinders for driving the platform to lift and lower, and the working process is as follows:

[0053] S1: The first alternating transfer platform 240 is in a raised state at the loading end, the product 4 is placed on the first alternating transfer platform 240, and the second side push positioner 243 is activated to position the product 4 from both sides.

[0054] The empty second alternating transfer platform 241 is lowered at the unloading end;

[0055] S2: The positioning member 244 of the first alternating transfer platform 240 moves to position the product 4 from both the front and rear sides;

[0056] S3: The second side push positioner 243 is actuated to release the product 4, and the first alternating transfer platform 240 moves forward (to the unloading end) along the second linear slide rail 239, while the second alternating transfer platform 241 is in a descending state and moves toward the second side push positioner 243;

[0057] S4: After the first alternating transfer platform 240 moves to the unloading end of the second linear slide rail 239, the positioning member 244 is actuated to release the product 4, and the unloading and handling robot transfers the product 4 on the first alternating transfer platform 240 to the unloading mechanism 3, and the empty first alternating transfer platform 240 is lowered.

[0058] The second alternating transfer platform 241 rises, and a new product is placed on the second alternating transfer platform 241. The second side push positioner 243 is actuated to position the product 4 from both sides. The positioning member of the second alternating transfer platform 241 is actuated to position the product 4 from both sides.

[0059] S5: The first alternating transfer platform 240 moves along the second linear slide rail 239 toward the second side push positioner 243, and the second alternating transfer platform 241 moves along the third linear slide rail 242 toward the material end;

[0060] S6: The first alternating transfer platform 240 is raised and a new product is placed on it. After the product on the second alternating transfer platform 241 is transferred to the unloading mechanism 3 by the unloading handling robot, the second alternating transfer platform 241 is lowered, and this process repeats steps S1 to S6.

[0061] When the product passes through the third visual inspection module, the four edges of the front, back and top are inspected.

[0062] The advantage of this design is that the unloading and handling robot does not need to wait for the materials, which can improve efficiency.

[0063] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A square battery blue film AOI detection device, characterized by: It includes a first visual detection module, a second visual detection module and a third visual detection module. The first visual detection module and the third visual detection module are arranged side by side, the second visual detection module is arranged on the upper ends of the first visual detection module and the third visual detection module, and a cache platform is arranged adjacent to the second visual detection module and the third visual detection module.

2. According to claim 1, a square battery blue film AOI detection device is characterized in that: The first visual inspection module includes a first transfer assembly below the first camera assembly, the first transfer assembly is adjacent to the transfer conveyor assembly in the feeding mechanism, after the product is positioned at the front section of the first transfer assembly, the left side, right side and top side inspection are completed in the process of moving to the rear section of the first transfer assembly, and the rear end of the first transfer assembly is adjacent to the second visual inspection module; The first camera assembly includes a first camera bracket, a left side light source and a left side camera are installed on the left side of the first camera bracket, a right side light source and a right side camera are installed on the right side of the first camera bracket, and a first top surface light source, a first top surface camera and a first scanner are installed on the top of the first camera bracket.

3. According to claim 2, a square battery blue film AOI detection device is characterized in that: The first transfer assembly includes a first linear slide rail, on which a first transfer slide is slidably arranged, the product is placed on the first transfer slide rail, and the first transfer slide rail drives the product to move along the first linear slide rail. First side push positioners are installed on both sides of the first linear slide rail. After the product is placed on the first transfer slide, the first side push positioners on both sides are activated to position the product on the first transfer slide.

4. According to claim 1, a square battery blue film AOI detection device is characterized in that: The second visual inspection module includes a second camera assembly and a second transfer assembly for detecting the bottom surface of the product. The second transfer assembly includes a bracket. A bottom surface inspection clamp is movably set on one side of the bracket adjacent to the first visual inspection module, and a cache transport clamp is movably set on the other side of the bracket. The second camera assembly is set below the bracket where the bottom surface inspection clamp is located. During the process of the bottom surface inspection clamp clamping the product and moving to the side where the cache transport clamp is located, the second camera assembly completes the bottom surface inspection. A rotating pitch changing assembly is set below the bracket where the bottom surface inspection clamp and the cache transport clamp are adjacent. The bottom surface inspection clamp places the product that has completed the bottom surface inspection on the rotating pitch changing assembly. After the product is rotated and the pitch is changed, it is transferred to the cache platform through the cache transport clamp.

5. According to claim 4, a square battery blue film AOI detection device is characterized in that: The second camera assembly includes a first bottom surface illumination light source, a second bottom surface illumination light source, a first bottom surface camera and a second bottom surface camera. The first bottom surface illumination light source is horizontally arranged, and the light is vertically irradiated upward. At least one through hole is provided in the middle area of ​​the first bottom surface illumination light source to accommodate the first bottom surface camera to take an image. The first bottom surface camera takes a picture vertically upward through the through hole. A second bottom surface illuminating light source is arranged in parallel and at intervals on the side of the first bottom surface illuminating light source, a second bottom surface camera is arranged in parallel and at intervals on another side of the second bottom surface illuminating light source, and the first bottom surface illuminating light source, the second bottom surface illuminating light source and the second bottom surface camera are arranged in parallel and at intervals. The second bottom surface illumination light source includes two light emitting components. The first light emitting component close to the second bottom surface camera is horizontally arranged and the light is vertically irradiated upward. The second light emitting component close to the first bottom surface illumination light source is tilted toward the direction where the second bottom surface camera is located, and the light is tilted upward toward the direction where the second bottom surface camera is located. The second bottom surface photographing camera is arranged obliquely toward the position where the second bottom surface irradiation light source is located.

6. The square battery blue film AOI detection device according to claim 1, characterized in that: The third visual inspection module includes a third camera assembly and a third transfer assembly arranged below the third camera assembly. The front end of the third transfer assembly is adjacent to the buffer platform, and the rear end of the third transfer assembly is adjacent to the unloading mechanism. After the product is positioned at the front section of the third transfer assembly, the front, back and top edges are inspected in the process of moving to the rear section of the third transfer assembly. The third camera assembly includes a third camera bracket, a front light source and a front camera are installed on the left side of the third camera bracket, a rear light source and a rear camera are installed on the right side of the first camera bracket, and a third top surface light source, a third top surface camera and a third scanner are installed on the top of the third camera bracket.

7. The square battery blue film AOI detection device according to claim 6, characterized in that: The third transfer assembly is an up and down lifting circular transfer structure, including a second linear slide and a third linear slide arranged in parallel and spaced apart, a first alternating transfer platform slidably arranged on the second linear slide, a second alternating transfer platform slidably arranged on the third linear slide, a second side push positioner is arranged above the feeding ends of the second linear slide and the third linear slide, and the positioning position of the second side push positioner is located above the middle interval between the second linear slide and the third linear slide.

8. The square battery blue film AOI detection device according to claim 4 is characterized by: The rotating pitch-changing assembly includes two rotating platforms, one of which is fixedly installed and the other is slidably arranged on a linear slide rail. A pitch-changing cylinder is arranged between the two rotating platforms. The extension and retraction of the pitch-changing cylinder drives the rotating platform to move back and forth along the linear slide rail to change the pitch. Each rotating platform includes a base plate, the bottom of the base plate is connected to the output end of the rotating motor, and a plurality of clamps for clamping the product are arranged on the base plate.

9. A square battery blue film AOI detection device according to claim 1 or 4, characterized in that: At least one groove for accommodating the taking and placing of products is provided on the cache table of the cache platform, and the inner contour of the groove is the same as the outer contour of the product.

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