A Visual-based New Energy Lithium Battery Core Appearance Detection Machine

Abstract

The present invention discloses a visual new energy lithium battery appearance inspection machine, comprising a bracket, a feeding device, a detection device, a material unloading and handling module and a conveying device. The feeding device is connected to the bracket, the detection device is used for detecting materials conveyed by the feeding device, the material unloading and handling module is connected to the bracket, the material unloading and handling module classifies and unloads the materials according to the detection results, the conveying device is connected to the bracket, and is used for conveying the materials conveyed by the material unloading and handling module; the feeding device continuously conveys the lithium battery to be inspected toward the detection device, the detection device is used for performing appearance inspection on the lithium battery, and the material unloading and handling module conveys the lithium battery to the corresponding conveying device according to the detection results. The whole inspection process has a high degree of automation and does not require manual intervention. While ensuring the quality of appearance inspection, it reduces the waste of human resources and saves production costs.

Description

Technical Field

[0001] The present invention relates to the technical field of appearance detection machines, and specifically to a vision-based new energy lithium battery cell appearance detection machine. Background Technique

[0002] At present, lithium-ion batteries are increasingly widely used, such as in mobile phones, laptops, electric vehicles, etc., forming a huge industrial cluster. Among them, the battery cell is an intermediate product of various forms of lithium batteries, and can be assembled into batteries of different specifications through the pack process, such as lithium batteries for electric bicycles, lithium batteries for electric cars, etc. Since the outer shell of the battery cell is a relatively soft composite material, the battery cell includes a battery cell body and a Mylar film covering the battery cell body; after the battery cell is produced, many quality problems are reflected in the appearance of the battery cell. Therefore, in the production process of the battery cell, it is necessary to take pictures and detect the appearance of the battery cell. However, the existing photographing devices have poor integrity of the collected images, single functions, affect the judgment accuracy, are troublesome to use, and have low efficiency. Summary of the Invention

[0003] The purpose of the present invention is to provide a vision-based new energy lithium battery cell appearance detection machine to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A vision-based new energy lithium battery cell appearance detection machine includes a bracket, and further includes a feeding device, a detection device, a discharging and handling module, and a conveying device. The feeding device is connected to the bracket, the detection device is used to detect the materials conveyed by the feeding device, the discharging and handling module is connected to the bracket, and the discharging and handling module classifies and discharges the materials according to the detection results. The conveying device is connected to the bracket and is used to convey the materials conveyed by the discharging and handling module.

[0005] Further, the feeding device includes: a feeding connection conveyor line and a feeding mechanism. The feeding mechanism is connected to the bracket, and the feeding connection conveyor line is arranged below the feeding mechanism; the feeding mechanism includes: a first feeding bracket, a feeding front and rear moving device, a feeding left and right moving device, a feeding up and down moving device, a feeding buffer device, a grasping frame, and a lithium battery cell clamping jaw assembly. The first feeding bracket is connected to the bracket, the feeding front and rear moving device is arranged above the first feeding bracket, the feeding left and right moving device is connected to the feeding front and rear moving device, the feeding up and down moving device is connected to the feeding left and right moving device, the buffer device is connected to the feeding up and down moving device, the grasping frame is connected to the buffer device, and the lithium battery cell clamping jaw assembly is fixedly connected to the grasping frame.

[0006] Further, the detection device includes: 3D detection, transplanting device, and 2D detection. The 3D detection and 2D detection are respectively arranged on both sides of the transplanting device; the 3D detection includes: narrow surface 3D detection, large surface 3D detection, upper and lower surface 3D detection; the transplanting device includes: narrow surface detection transplanting, rotary transplanting, large surface detection transplanting, secondary turning transplanting, upper and lower surface photographing transplanting; the 2D detection includes: narrow surface 2D detection, large surface 2D detection, and upper and lower surface 2D detection; the narrow surface detection transplanting is arranged above the bracket, and the narrow surface 3D detection and narrow surface 2D detection are successively arranged on both sides of the narrow surface detection transplanting; the rotary transplanting is movably arranged above the narrow surface detection transplanting and large surface detection transplanting, the large surface detection transplanting is arranged in front of the narrow surface detection transplanting, and the large surface 2D detection and large surface 3D detection are successively arranged on both sides of the large surface detection transplanting; the secondary turning transplanting is movably arranged above the large surface detection transplanting and upper and lower surface photographing transplanting, the upper and lower surface photographing transplanting is arranged in front of the large surface detection transplanting, and the upper and lower surface 3D detection and upper and lower surface 2D detection are successively arranged on both sides of the upper and lower surface photographing transplanting.

[0007] Further, the narrow surface 3D detection includes: narrow surface 3D left detection and narrow surface 3D right detection. The narrow surface 3D left detection and narrow surface 3D right detection are symmetrically arranged on both sides of the narrow surface detection transplanting, and the narrow surface 3D left detection and the narrow surface 3D right detection have the same structure; the narrow surface 3D left detection includes: a 3D camera and a fixing component, and the 3D camera is installed on the fixing component; the fixing component is installed on the bracket; the large surface 3D detection and the upper and lower surface 3D detection have the same structure as the narrow surface 3D detection.

[0008] Further, the narrow surface 2D detection includes: narrow surface 2D left detection and narrow surface 2D right detection. The narrow surface 2D left detection and narrow surface 2D right detection are symmetrically arranged on both sides of the narrow surface detection transplanting, and the narrow surface 2D left detection and the narrow surface 2D right detection have the same structure; the narrow surface 2D left detection includes: a camera support block, a fine-tuning slider, a 2D camera, a protective cover, a light box, and a strip light source. The fine-tuning slider is connected to the camera support block, a 2D camera is arranged above the fine-tuning slider, the protective cover is arranged above the 2D camera, the light box is connected to the camera support block, and the strip light source is arranged in an "O" shape along the edge of the light box; the large surface 2D detection and the upper and lower surface 2D detection have the same structure as the narrow surface 2D detection.

[0009] Furthermore, the narrow-side detection and transplanting mechanism includes: a narrow-side driving motor, a narrow-side moving device, a narrow-side moving connecting block, and a narrow-side fixing fixture. The narrow-side driving motor is connected to the bracket, the output end of the narrow-side driving motor is connected to the narrow-side moving device, the narrow-side moving connecting block is connected to the narrow-side moving device, and a narrow-side fixing fixture is provided above the narrow-side moving connecting block. The narrow-side fixing fixture includes: a narrow-side support base and narrow-side side guards. The narrow-side support base is connected to the narrow-side moving connecting block and is used to support the bottom of the battery cell. The narrow-side side guards are connected to the narrow-side support base and are used to limit the left and right sides of the battery cell to prevent the battery cell from shaking during the movement along with the narrow-side moving device.

[0010] Furthermore, the rotation and transplanting mechanism includes: a commutation bracket, a commutation front-back moving device, a commutation up-down moving device, a rotating cylinder, a clamping cylinder, and a clamping jaw. The commutation bracket is connected to the bracket, the commutation front-back moving device is connected to the commutation bracket, the commutation up-down moving device is connected to the commutation front-back moving device, the rotating cylinder is connected to the commutation up-down moving device, the clamping cylinder is connected to the rotating cylinder, and the output end of the clamping cylinder is connected to the clamping jaw. The rotating cylinder is used to drive the clamping cylinder to rotate, thereby performing a 90° turn on the lithium battery cell.

[0011] Furthermore, the blanking and handling module includes: a blanking bracket, a blanking left-right moving device, a blanking up-down moving device, and a blanking clamping device. The blanking bracket is connected to the bracket, the blanking left-right moving device is connected to the blanking bracket, the blanking up-down moving device is connected to the blanking left-right moving device, and the blanking clamping device is connected to the blanking up-down moving device.

[0012] Furthermore, the conveying device includes: a blanking transfer, a good product output line, a two-way assembly line, and an NG conveyor belt. The blanking transfer is fixedly connected to the bracket. The blanking transfer is arranged in front of the blanking and handling module. The two-way assembly line is arranged on the left side of the blanking and handling module. The good product output line is arranged on the right side of the blanking and handling module. The NG conveyor belt is arranged below the feeding device.

[0013] Furthermore, it further includes: a labeling device. The labeling device includes: a label output component and a labeling loading component. The label output component is connected to the bracket. The labeling loading component is arranged beside the conveying device. The labeling loading component is used to suck the label from the label output component and attach the label to the product.

[0014] Compared with the prior art, the technical solution of the present invention has the following advantages:

[0015] 1. The feeding device continuously conveys the lithium batteries to be detected towards the detection device. The detection device is used for the appearance detection of lithium batteries. The unloading and handling module conveys the lithium batteries to the corresponding conveying device according to the detection results. The entire detection process has a high degree of automation and does not require manual intervention. While ensuring the quality of appearance detection, it reduces the waste of human resources and saves production costs.

[0016] 2. The structures of the feeding device, detection device, unloading and handling module, and conveying device are all streamlined and the layout is compact. Various precision requirements and quality requirements for appearance detection can be met within a relatively small space, and the space utilization rate is high. The transplanting device, 3D detection, and 2D detection are arranged in a reasonable spatial layout and work together to complete the appearance detection action, reducing the secondary damage to the battery during the handling process, and at the same time reducing unnecessary efficiency waste as much as possible through a reasonable layout, ensuring the quality and high efficiency of appearance detection.

[0017] 3. Both the feeding device and the transplanting device adopt a double-station design, with two lithium batteries sent for inspection at a time, and the station structure is compact, which is conducive to improving the detection efficiency and the utilization rate of cameras, and reducing costs.

[0018] 4. 3D detection and 2D detection respectively use 3D cameras and 2D cameras for visual inspection of the surface of lithium batteries. With the use of software, it can detect scratches on the product surface, whether the electrolyte leaks, the flatness and parallelism of each surface, with high detection accuracy and diversity; at the same time, a self-made light box component is used, with the light boxes placed in pairs, and the light sources in the two side light boxes are coordinated and alternately filled with light, and the cameras take pictures at the same time, with a good imaging environment; the 3D cameras and 2D cameras are placed in pairs, directly performing 3D stereoscopic imaging and 2D image shooting on the product, with high-efficiency detection and high-efficiency output (4.5S / PCS). Brief Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is an exploded schematic diagram of the overall structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the feeding connection and conveying line structure of the present invention;

[0022] Figure 4 It is a schematic diagram of the feeding mechanism structure of the present invention;

[0023] Figure 5 It is a schematic diagram of the transplanting device structure of the present invention;

[0024] Figure 6 It is a schematic diagram of the unloading and handling module structure of the present invention;

[0025] Figure 7Schematic diagram of the upper and lower surface photographing and transplanting structure of the present invention;

[0026] Figure 8 Schematic diagram of the narrow surface 2D left detection structure of the present invention;

[0027] Figure 9 Schematic diagram of the labeling device of the present invention.

[0028] Annotation description: Bracket 1; Loading device 2; Detection device 3; Unloading handling module 4; Conveying device 5; Loading connection conveying line 21; Loading mechanism 22; First loading bracket 221; Loading front-back moving device 222; Loading left-right moving device 223; Loading up-down moving device 224; Loading buffer device 225; Gripping frame 226; Lithium battery core gripper assembly 227; Loading bracket 211; Loading protective plate 212; Loading conveyor roller 213; Roller drive motor 214; Code reading bracket 215; Barcode scanning device 216; Clamping jaw up-down moving cylinder 2271; Claw connection block 2272; Claw drive cylinder 2273; Claw block 2274; 3D detection 31; Transplanter device 32; 2D detection 33; Narrow surface 3D detection 311; Large surface 3D detection 312; Top and bottom 3D detection 313; Narrow surface detection transplanter 321; Rotary transplanter 322; Large surface detection transplanter 323; Secondary flipping transplanter 324; Top and bottom photographing transplanter 325; Narrow surface 2D detection 331; Large surface 2D detection 332; Top and bottom 2D detection 333; Narrow surface 3D left detection 3111; Narrow surface 3D right detection 3112; 3D camera 31111; Fixing component 31112; Narrow surface 2D left detection 3311; Narrow surface 2D right detection 3312; Camera support block 33111; Fine-tuning slider 33112; 2D camera 33113; Protective cover 33114; Light box 33115; Strip light source 33116; Narrow surface drive motor 3211; Narrow surface moving device 3212; Narrow surface moving connection block 3213; Narrow surface fixing fixture 3214; Narrow surface support base 32141; Narrow surface side guard plate 32142; Reversing bracket 3221; Reversing front-back moving device 3222; Reversing up-down moving device 3223; Rotary cylinder 3224; Clamping cylinder 3225; Claw 3226; Large surface drive motor 3231; Large surface moving device 3232; Large surface moving connection block 3233; Large surface fixing fixture 3234; Secondary flipping bracket 3241; Secondary moving device 3242; Secondary clamping device 3243; Top surface drive motor 3251; Top surface moving device 3252; Top surface moving frame 3253; Top surface front-back moving device 3254; Top surface clamping plate 3255; Top surface clamping cylinder 3256; Top surface claw 3257; Unloading bracket 41; Unloading left-right moving device 42; Unloading up-down moving device 43; Unloading clamping device 44; Unloading transfer 51; Good product output line 52; Bidirectional production line 53; NG conveyor belt 54; Unloading support device 511; Unloading rotating device 512; Unloading receiving device 513; Labeling device 6; Label output component 61; Label loading component 62. Detailed implementation manners

[0029] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following provides a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0032] As shown in the attached Figure 1 and the attached Figure 2 As shown, a visual new energy lithium battery cell appearance inspection machine includes a bracket 1. For the bracket 1, in order to prevent factors such as vibration and resonance, anti-vibration feet are used for the feet. It also includes a feeding device 2, a detection device 3, a discharging handling module 4, and a conveying device 5. The feeding device 2 is connected to the bracket 1. The detection device 3 is used to detect the materials conveyed by the feeding device 2. The discharging handling module 4 is connected to the bracket 1. The discharging handling module 4 classifies and discharges the materials according to the detection results. The conveying device 5 is connected to the bracket 1 and is used to convey the materials discharged by the discharging handling module 4. It also includes a controller for controlling the operation of the entire device. The control circuit of the controller can be realized by simple programming by those skilled in the art and belongs to the common knowledge in the art. The following provides a detailed introduction to the feeding device 2, the detection device 3, the discharging handling module 4, and the conveying device 5.

[0033] As shown in the attached Figure 4As shown in the figure, the feeding device 2 includes a feeding connection conveyor line 21 and a feeding mechanism 22. The feeding mechanism 22 is connected to the bracket 1, and the feeding connection conveyor line 21 is arranged below the feeding mechanism 22. The feeding mechanism 22 includes a first feeding bracket 221, a feeding front-back moving device 222, a feeding left-right moving device 223, a feeding up-down moving device 224, a feeding buffer device 225, a grasping frame 226, and a lithium battery cell clamping jaw assembly 227. The first feeding bracket 221 is connected to the bracket 1. The feeding front-back moving device 222 is arranged above the first feeding bracket 221. The feeding left-right moving device 223 is connected to the feeding front-back moving device 222. The feeding up-down moving device 224 is connected to the feeding left-right moving device 223. The buffer device is connected to the feeding up-down moving device 224. The grasping frame 226 is connected to the buffer device. The lithium battery cell clamping jaw assembly 227 is fixedly connected to the grasping frame 226.

[0034] The feeding front-back moving device 222 drives the feeding left-right moving device 223 to move back and forth. The feeding left-right moving device 223 drives the feeding up-down moving device 224 to move left and right. The feeding up-down moving device 224 drives the lithium battery cell clamping jaw assembly 227 to move up and down, thereby driving the lithium battery cell clamping jaw assembly 227 to move between the feeding connection conveyor line 21, the NG conveyor belt 54, the narrow surface 3D detection 311, and the narrow surface detection transplanting 321, realizing automatic feeding and detection.

[0035] As shown in the attached Figure 3 As shown in the figure, the feeding connection conveyor line 21 includes a feeding bracket 211, a feeding protection plate 212, a feeding conveyor roller 213, a roller drive motor 214, a code reading bracket 215, and a code scanning device 216. The feeding bracket 211 is arranged beside the bracket 1. The feeding conveyor roller 213 is rotatably arranged on the feeding bracket 211 for conveying the lithium battery cells to be detected. The roller drive motor 214 is arranged below the feeding bracket 211, and the roller drive motor 214 is used to drive the feeding conveyor roller 213 to rotate. The feeding protection plate 212 is arranged on the left and right sides of the feeding bracket 211. The code reading bracket 215 is arranged beside the feeding bracket 211. The code scanning device 216 is connected to the code reading bracket 215 for reading the material information of the lithium battery cells.

[0036] The lithium battery cell clamping jaw assembly 227 includes a clamping jaw up-down moving cylinder 2271, a jaw connecting block 2272, a jaw drive cylinder 2273, and a jaw block 2274. The clamping jaw up-down moving cylinder 2271 is connected to the grasping frame 226. The output end of the clamping jaw up-down moving cylinder 2271 is connected to the jaw connecting block 2272. The jaw drive cylinder 2273 is connected to the jaw connecting block 2272. The output end of the jaw drive cylinder 2273 is connected to the jaw block 2274.

[0037] The lithium battery cell to be detected is continuously conveyed onto the feeding conveyor roller 213. The feeding conveyor roller 213 drives the lithium battery cell to move towards the feeding mechanism 22. The code scanning device 216 reads the material information of the lithium battery cell and transmits the read information to the controller. The feeding mechanism 22 places the corresponding lithium battery cell at the corresponding position according to the information fed back by the code scanning device 216. If the code scanning is NG, the feeding mechanism 22 transplants the lithium battery cell to the NG conveyor belt 54. If the code reading is OK, the feeding mechanism 22 transplants the lithium battery cell to the narrow surface 3D detection 311 for 3D detection 31. After the 3D detection 31 is completed, the feeding mechanism 22 places the lithium battery cell on the narrow surface detection transplant 321 again.

[0038] The detection device 3 includes: 3D detection 31, transplanting device 32 and 2D detection 33. The 3D detection 31 and 2D detection 33 are respectively arranged on both sides of the transplanting device 32. The 3D detection 31 includes: narrow surface 3D detection 311, large surface 3D detection 312, upper and lower surface 3D detection 313. The transplanting device 32 includes: narrow surface detection transplant 321, rotation transplant 322, large surface detection transplant 323, secondary flip transplant 324, upper and lower surface photographing transplant 325. The 2D detection 33 includes: narrow surface 2D detection 331, large surface 2D detection 332 and upper and lower surface 2D detection 333. The narrow surface detection transplant 321 is arranged above the bracket 1. The narrow surface 3D detection 311 and narrow surface 2D detection 331 are successively arranged on both sides of the narrow surface detection transplant 321. The rotation transplant 322 is movably arranged above the narrow surface detection transplant 321 and large surface detection transplant 323. The large surface detection transplant 323 is arranged in front of the narrow surface detection transplant 321. The large surface 2D detection 332 and large surface 3D detection 312 are successively arranged on both sides of the large surface detection transplant 323. The secondary flip transplant 324 is movably arranged above the large surface detection transplant 323 and upper and lower surface photographing transplant 325. The upper and lower surface photographing transplant 325 is arranged in front of the large surface detection transplant 323. The upper and lower surface 3D detection 313 and upper and lower surface 2D detection 333 are successively arranged on both sides of the upper and lower surface photographing transplant 325.

[0039] The detection device 3 detects all six surfaces of the lithium battery cell. The narrow - face 3D detection 311 and the narrow - face 2D detection 331 are used for the two narrow faces, the large - face 3D detection 312 and the large - face 2D detection 332 are used for the two large faces, and the upper - and - lower - face 3D detection 313 and the upper - and - lower - face 2D detection 333 are used for the two upper - and - lower faces. The feeding mechanism 22 grabs the lithium battery cell to be detected and places it at the narrow - face 3D detection 311 for detection. After the narrow - face detection is completed, the feeding mechanism 22 places the lithium battery cell on the narrow - face detection transfer 321. The narrow - face detection transfer 321 drives the lithium battery cell to move to the narrow - face 2D detection 331. After the narrow - face detection is completed, the narrow - face detection transfer 321 drives the lithium battery cell to move to the picking position of the rotary transfer 322. The rotary transfer 322 grabs the lithium battery cell, rotates the lithium battery cell by 90°, and moves it to the large - face 2D detection 332, places the lithium battery cell at the large - face 2D detection 332 for detection. After the large - face detection is completed, the rotary transfer 322 grabs the lithium battery cell and transports it to the large - face detection transfer 323. The large - face detection transfer 323 drives the lithium battery cell to move to the large - face 3D detection 312. After the large - face detection is completed, the large - face detection transfer 323 drives the lithium battery cell to move to the picking position of the secondary flip - transfer 324. The secondary flip - transfer 324 grabs the lithium battery cell and transports it to the upper - and - lower - face photographing transfer 325. The upper - and - lower - face photographing transfer 325 drives the lithium battery cell to move to the upper - and - lower - face 3D detection 313 to perform 3D detection 31 on the upper and lower faces of the lithium battery cell. After the upper - and - lower - face detection is completed, the upper - and - lower - face photographing transfer 325 drives the lithium battery cell to move to the upper - and - lower - face 2D detection 333. Thus, the detection of the six surfaces of the lithium battery cell is completed.

[0040] As shown in the Figure 2 attachment, the narrow - face 3D detection 311 includes: a narrow - face 3D left detection 3111 and a narrow - face 3D right detection 3112. The narrow - face 3D left detection 3111 and the narrow - face 3D right detection 3112 are symmetrically arranged on both sides of the narrow - face detection transfer 321, and the narrow - face 3D left detection 3111 and the narrow - face 3D right detection 3112 have the same structure. The narrow - face 3D left detection 3111 includes: a 3D camera 31111 and a fixing component 31112. The 3D camera 31111 is installed on the fixing component 31112. The fixing component 31112 is installed on the bracket 1. The large - face 3D detection 312 and the upper - and - lower - face 3D detection 313 have the same structure as the narrow - face 3D detection 311.

[0041] The narrow-side 3D left detection 3111 is used to detect the first narrow side of the lithium battery cell, and the narrow-side 3D right detection 3112 is used to detect the second narrow side of the lithium battery cell; the 3D camera 31111 can perform 3D shaping and contour imaging, and feed the imaging information back to the controller. The controller compares the stereoscopic pictures taken by the 3D camera 31111 with the standard pictures through a program to detect the flatness and parallelism of the narrow-side surface, and at the same time detect whether there are scratches, pinholes, and wrinkles on the narrow-side surface; the detection methods of the large-side 3D detection 312 and the upper and lower surface 3D detection 313 are the same as those of the narrow-side 3D detection 311, and are used to detect the two large sides and the two upper and lower surfaces of the lithium battery cell respectively; by using the 3D camera 31111 for detection and utilizing the 3D stereoscopic image, various technical detections such as whether there are scratches, pinholes, and wrinkles, flatness, and parallelism on the surface of the lithium battery cell can be performed, avoiding the problems of only being able to detect surface scratches and single function in the prior art, and improving the detection accuracy.

[0042] As shown in the Figure 8 accompanying figure, the narrow-side 2D detection 331 includes: narrow-side 2D left detection 3311 and narrow-side 2D right detection 3312. The narrow-side 2D left detection 3311 and the narrow-side 2D right detection 3312 are symmetrically arranged on both sides of the narrow-side detection transfer device 321, and the structures of the narrow-side 2D left detection 3311 and the narrow-side 2D right detection 3312 are the same; the narrow-side 2D left detection 3311 includes: a camera support block 33111, a fine-tuning slider 33112, a 2D camera 33113, a protective cover 33114, a light box 33115, and a strip light source 33116. The fine-tuning slider 33112 is connected to the camera support block 33111. A 2D camera 33113 is provided above the fine-tuning slider 33112. The protective cover 33114 is arranged above the 2D camera 33113. The light box 33115 is connected to the camera support block 33111. The strip light source 33116 is arranged in an "O" shape along the edge of the light box 33115; the structures of the large-side 2D detection 332 and the upper and lower surface 2D detection 333 are the same as those of the narrow-side 2D detection 331; the light boxes 33115 of the narrow-side 2D left detection 3311 and the narrow-side 2D right detection 3312 are arranged opposite to each other, and the internal light sources of the light boxes 33115 on both sides of the transfer device 32 are coordinated to alternately supplement light, and the cameras work simultaneously for shooting to improve the detection quality.

[0043] The narrow-side 2D left detection 3311 is used for 2D detection 33 of the first narrow side of the lithium battery cell, and the narrow-side 2D right detection 3312 is used for 2D detection 33 of the second narrow side of the lithium battery cell; the 2D camera 33113 is used to take pictures of the lithium battery cell and feed the corresponding image information back to the controller. The controller compares the image information with the standard picture through a program to detect whether the electrolyte of the lithium battery cell leaks; the detection methods of the large-side 2D detection 332 and the upper and lower side 2D detection 333 are the same as that of the narrow-side 2D detection 331, and are used to detect the two large sides and the two upper and lower sides of the lithium battery cell respectively.

[0044] As shown in the Figure 5 accompanying drawings, the narrow-side detection and transfer device 321 includes: a narrow-side drive motor 3211, a narrow-side moving device 3212, a narrow-side moving connection block 3213, and a narrow-side fixed fixture 3214. The narrow-side drive motor 3211 is connected to the bracket 1, the output end of the narrow-side drive motor 3211 is connected to the narrow-side moving device 3212, the narrow-side moving connection block 3213 is connected to the narrow-side moving device 3212, and a narrow-side fixed fixture 3214 is provided above the narrow-side moving connection block 3213; the narrow-side fixed fixture 3214 includes: a narrow-side support base 32141 and narrow-side side guards 32142. The narrow-side support base 32141 is connected to the narrow-side moving connection block 3213 and is used to support the bottom of the battery cell. The narrow-side side guards 32142 are connected to the narrow-side support base 32141 and are used to limit the left and right sides of the battery cell to prevent the battery cell from shaking during the movement with the narrow-side moving device 3212.

[0045] When the narrow-side drive motor 3211 operates, it drives the narrow-side moving device 3212 to operate, and then drives the narrow-side moving connection block 3213 to reciprocate between the narrow-side 2D detection 331 and the rotation and transfer device 322. The narrow-side fixed fixture 3214 moves together with the narrow-side moving connection block 3213. The narrow-side fixed fixture 3214 is used to support the lithium battery cell to be detected; the narrow-side moving device 3212 drives the lithium battery cell to be transferred to the narrow-side 2D detection 331 for 2D detection 33, and after the lithium battery cell is detected, it is transferred to the material taking position of the rotation and transfer device 322.

[0046] As shown in the Figure 6As shown in the figure, the rotary transfer device 322 includes: a reversing bracket 3221, a reversing front-back moving device 3222, a reversing up-down moving device 3223, a rotary cylinder 3224, a clamping cylinder 3225, and a clamping jaw 3226. The reversing bracket 3221 is connected to the bracket 1. The reversing front-back moving device 3222 is connected to the reversing bracket 3221. The reversing up-down moving device 3223 is connected to the reversing front-back moving device 3222. The rotary cylinder 3224 is connected to the reversing up-down moving device 3223. The clamping cylinder 3225 is connected to the rotary cylinder 3224. The output end of the clamping cylinder 3225 is connected to the clamping jaw 3226. The rotary cylinder 3224 is used to drive the clamping cylinder 3225 to rotate, thereby turning the lithium battery cell by 90°.

[0047] The reversing front-back moving device 3222 drives the reversing up-down moving device 3223 to move back and forth. The up-down moving device drives the rotary cylinder 3224 to move up and down, so that the clamping cylinder 3225 reciprocates between the narrow-side detection transfer device 321 and the large-side detection transfer device 323. The clamping cylinder 3225 picks up the lithium battery cell from the narrow-side detection transfer device 321 and transports the lithium battery cell to the large-side detection transfer device 323 for large-side detection.

[0048] As shown in the attached Figure 5 As shown in the figure, the large-side detection transfer device 323 includes: a large-side drive motor 3231, a large-side moving device 3232, a large-side moving connection block 3233, and a large-side fixed fixture 3234. The large-side drive motor 3231 is connected to the bracket 1. The output end of the large-side drive motor 3231 is connected to the large-side moving device 3232. The large-side moving connection block 3233 is connected to the large-side moving device 3232. A large-side fixed fixture 3234 is provided above the large-side moving connection block 3233.

[0049] After the 2D detection 332 of the large side of the lithium battery cell is completed, it is placed into the large-side fixed fixture 3234. The large-side drive motor 3231 operates to drive the large-side moving device 3232 to move to the large-side 3D detection 312 for 3D photographing and detection of the large side. After the 3D detection 31 is completed, the large-side moving device 3232 continues to move forward to the feeding position of the secondary flipping transfer device 324.

[0050] As shown in the attached Figure 6 As shown in the figure, the secondary flipping transfer device 324 includes: a secondary flipping bracket 3241, a secondary moving device 3242, and a secondary clamping device 3243. The secondary flipping bracket 3241 is connected to the bracket 1. The secondary moving device 3242 is connected to the secondary flipping bracket 3241. The secondary clamping device 3243 is connected to the secondary moving device 3242.

[0051] The secondary moving device 3242 drives the secondary material clamping device 3243 to reciprocate between the large surface inspection transfer device 323 and the upper and lower surface photographing transfer device 325, so that the secondary material clamping device 3243 clamps the lithium battery cell from the large surface inspection transfer device 323 and conveys the clamped lithium battery cell to the upper and lower surface photographing transfer device 325 for the next inspection work.

[0052] As shown in the Figure 7 accompanying drawings, the upper and lower surface photographing transfer device 325 includes: an upper surface driving motor 3251, an upper surface moving device 3252, an upper surface moving frame 3253, an upper surface front and rear moving device 3254, an upper surface material clamping plate 3255, an upper surface clamping cylinder 3256 and upper surface clamping jaws 3257. The upper surface driving motor 3251 is connected to the support 1, the output end of the upper surface driving motor 3251 is connected to the upper surface moving device 3252, an upper surface moving frame 3253 is arranged above the upper surface moving device 3252, an upper surface front and rear moving device 3254 is arranged above the upper surface moving frame 3253, an upper surface material clamping plate 3255 is arranged above the upper surface front and rear moving device 3254, the upper surface clamping cylinder 3256 is connected to the upper surface material clamping plate 3255, and the output end of the upper surface clamping cylinder 3256 is connected to the upper surface clamping jaws 3257.

[0053] When the upper surface driving motor 3251 operates, it drives the upper surface moving device 3252 to move left and right, drives the upper surface front and rear moving device 3254 to move left and right. When the upper surface front and rear moving device 3254 operates, it drives the upper surface clamping cylinder 3256 to move back and forth, and further drives the upper surface clamping cylinder 3256 to pick up and place the lithium battery cell. The clamping cylinder drives the upper surface clamping jaws 3257 to open or close for picking up or discharging materials. When the upper surface moving device 3252 drives the upper surface front and rear moving device 3254 to move left and right, it drives the lithium battery cell clamped by the upper surface clamping cylinder 3256 to move through the upper and lower surface 3D inspection 313. The upper and lower surface 3D inspection 313 takes pictures and inspects the upper and lower surfaces. After the upper and lower surface 3D inspection 31 is completed, the product has been transferred to the upper and lower surface 2D inspection 333. After the upper and lower surface 2D inspection 33 is completed, the upper surface front and rear moving device 3254 operates to push the lithium battery cell to the blanking transfer 51.

[0054] As shown in the Figure 6 accompanying drawings, the blanking handling module 4 includes: a blanking support 41, a blanking left and right moving device 42, a blanking up and down moving device 43, and a blanking material clamping device 44. The blanking support 41 is connected to the support 1, the blanking left and right moving device 42 is connected to the blanking support 41, the blanking up and down moving device 43 is connected to the blanking left and right moving device 42, and the blanking material clamping device 44 is connected to the blanking up and down moving device 43.

[0055] The blanking left - right moving device 42 drives the blanking up - down moving device 43 to move left and right. The blanking up - down moving device 43 drives the blanking clamping device 44 to move up and down, drives the blanking clamping device 44 to pick up materials from the blanking transfer 51, and classifies and discharges the products according to the detection results. Among them, the detected qualified products are grabbed and sent to the good - product output line 52, and the detected unqualified products are grabbed and sent to the NG output line in the two - way assembly line 53, and are sent out through the conveyor line for manual re - inspection.

[0056] As shown in the Figure 2 accompanying drawings, the conveying device 5 includes: a blanking transfer 51, a good - product output line 52, a two - way assembly line 53, an NG conveyor belt 54. The blanking transfer 51 is fixedly connected to the bracket 1. The blanking transfer 51 is arranged in front of the blanking handling module 4. The two - way assembly line 53 is arranged on the left side of the blanking handling module 4. The good - product output line 52 is arranged on the right side of the blanking handling module 4. The NG conveyor belt 54 is arranged below the feeding device 2. The blanking transfer 51 is used to receive the products after detection. The good - product output line 52 is used to convey the detected qualified products. The two - way assembly line 53 includes: an NG output line and a second - inspection qualified conveyor line. The NG output line is used to convey the detected unqualified products. The second - inspection qualified conveyor line is used to convey the products that pass the manual re - inspection. The NG conveyor belt 54 is used to convey the products with unqualified code reading by the code - scanning device 216.

[0057] The blanking transfer 51 includes: a blanking support device 511, a blanking rotating device 512, and a blanking receiving device 513. The blanking rotating device 512 is arranged above the blanking support device 511. The blanking receiving device 513 is arranged above the blanking rotating device 512. The blanking receiving device 513 is used to receive the detected lithium battery cores pushed by the up - down and bottom - top photographing and transplanting 325. The blanking rotating device 512 drives the blanking receiving device 513 to rotate 90°, and adjusts the lithium battery cores to a position convenient for the blanking handling module 418 to pick up materials.

[0058] As shown in the Figure 9 accompanying drawings, it further includes: a labeling device 6. The labeling device 6 includes: a label - discharging component 61 and a label - feeding and pasting component 62. The label - discharging component 61 is connected to the bracket 1. The label - feeding and pasting component 62 is arranged beside the conveying device 5. The label - feeding and pasting component 62 is used to suck the labels from the label - discharging component 61 and paste the labels on the products. The roll of labels is sleeved on the label - discharging component 61. The label - feeding and pasting component 62 sucks the labels conveyed by the label - discharging component 61 and pastes the labels on the detected qualified products. The good - product output line 52 conveys the detected qualified lithium battery cores to the label - feeding and pasting component 62. The label - feeding and pasting component 62 pastes the sucked labels above the lithium battery cores to complete the labeling. The lithium battery cores continue to move along with the good - product output line 52, and the detected lithium battery cores are sent out of the equipment.

[0059] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A visual-based new energy lithium battery cell appearance inspection machine, including a bracket, characterized in that, it further includes a feeding device, a detection device, a discharging handling module and a conveying device. The feeding device is connected to the bracket. The detection device is used to detect the materials conveyed by the feeding device. The discharging handling module is connected to the bracket. The discharging handling module classifies and discharges the materials according to the detection results. The conveying device is connected to the bracket and is used to convey the materials discharged by the discharging handling module; The detection device includes: 3D detection, a transplanting device and 2D detection. The 3D detection and 2D detection are respectively arranged on both sides of the transplanting device; The 3D detection includes: narrow surface 3D detection, large surface 3D detection, upper and lower surface 3D detection; The transplanting device includes: narrow surface detection transplanting, rotary transplanting, large surface detection transplanting, secondary flipping transplanting, upper and lower surface photographing transplanting; The 2D detection includes: narrow surface 2D detection, large surface 2D detection and upper and lower surface 2D detection; The narrow surface detection transplanting is arranged above the bracket. The narrow surface 3D detection and narrow surface 2D detection are sequentially arranged on both sides of the narrow surface detection transplanting; The rotary transplanting is movably arranged above the narrow surface detection transplanting and the large surface detection transplanting. The large surface detection transplanting is arranged in front of the narrow surface detection transplanting. The large surface 2D detection and large surface 3D detection are sequentially arranged on both sides of the large surface detection transplanting; The secondary flipping transplanting is movably arranged above the large surface detection transplanting and the upper and lower surface photographing transplanting. The upper and lower surface photographing transplanting is arranged in front of the large surface detection transplanting. The upper and lower surface 3D detection and upper and lower surface 2D detection are sequentially arranged on both sides of the upper and lower surface photographing transplanting; Among them, the narrow surface 3D detection includes: narrow surface 3D left detection and narrow surface 3D right detection. The narrow surface 3D left detection and narrow surface 3D right detection are symmetrically arranged on both sides of the narrow surface detection transplanting. The narrow surface 3D left detection and the narrow surface 3D right detection have the same structure; The narrow surface 3D left detection includes: a 3D camera and a fixing component. The 3D camera is installed on the fixing component; The fixing component is installed on the bracket; The large surface 3D detection and the upper and lower surface 3D detection have the same structure as the narrow surface 3D detection.

2. A visual-based new energy lithium battery cell appearance inspection machine according to claim 1, characterized in that, the feeding device includes: a feeding connection conveying line and a feeding mechanism. The feeding mechanism is connected to the bracket. The feeding connection conveying line is arranged below the feeding mechanism; The feeding mechanism includes: a first feeding bracket, a feeding front and rear moving device, a feeding left and right moving device, a feeding up and down moving device, a feeding buffer device, a grasping frame and a lithium battery cell clamping jaw assembly. The first feeding bracket is connected to the bracket. The feeding front and rear moving device is arranged above the first feeding bracket. The feeding left and right moving device is connected to the feeding front and rear moving device. The feeding up and down moving device is connected to the feeding left and right moving device. The buffer device is connected to the feeding up and down moving device. The grasping frame is connected to the buffer device. The lithium battery cell clamping jaw assembly is fixedly connected to the grasping frame.

3. A visual-based new energy lithium battery cell appearance inspection machine according to claim 1, characterized in that, The narrow - face 2D detection includes: narrow - face 2D left detection and narrow - face 2D right detection. The narrow - face 2D left detection and narrow - face 2D right detection are symmetrically arranged on both sides of the narrow - face detection and transplanting. The structures of the narrow - face 2D left detection and narrow - face 2D right detection are the same. The narrow - face 2D left detection includes: a camera support block, a fine - tuning slider, a 2D camera, a protective cover, a light box, and a strip light source. The fine - tuning slider is connected to the camera support block. A 2D camera is provided above the fine - tuning slider. The protective cover is arranged above the 2D camera. The light box is connected to the camera support block. The strip light sources are arranged in an "O" - shaped pattern along the edge of the light box. The structures of the large - face 2D detection and the upper - and - lower - face 2D detection are the same as that of the narrow - face 2D detection.

4. A vision - based new - energy lithium - battery core appearance detection machine according to claim 1, wherein, the narrow - face detection and transplanting includes: a narrow - face drive motor, a narrow - face moving device, a narrow - face moving connection block, and a narrow - face fixed fixture. The narrow - face drive motor is connected to the support. The output end of the narrow - face drive motor is connected to the narrow - face moving device. The narrow - face moving connection block is connected to the narrow - face moving device. A narrow - face fixed fixture is provided above the narrow - face moving connection block. The narrow - face fixed fixture includes: a narrow - face support base and narrow - face side guards. The narrow - face support base is connected to the narrow - face moving connection block and is used to support the bottom of the battery core. The narrow - face side guards are connected to the narrow - face support base and are used to limit the left and right sides of the battery core.

5. A vision - based new - energy lithium - battery core appearance detection machine according to claim 1, wherein, the rotation and transplanting includes: a commutation support, a commutation front - and - back moving device, a commutation up - and - down moving device, a rotary cylinder, a clamping cylinder, and a clamping jaw. The commutation support is connected to the support. The commutation front - and - back moving device is connected to the commutation support. The commutation up - and - down moving device is connected to the commutation front - and - back moving device. The rotary cylinder is connected to the commutation up - and - down moving device. The clamping cylinder is connected to the rotary cylinder. The output end of the clamping cylinder is connected to the clamping jaw.

6. A vision - based new - energy lithium - battery core appearance detection machine according to claim 1, wherein, the blanking handling module includes: a blanking support, a blanking left - and - right moving device, a blanking up - and - down moving device, and a blanking clamping device. The blanking support is connected to the support. The blanking left - and - right moving device is connected to the blanking support. The blanking up - and - down moving device is connected to the blanking left - and - right moving device. The blanking clamping device is connected to the blanking up - and - down moving device.

7. A vision - based new - energy lithium - battery core appearance detection machine according to claim 1, wherein, the conveying device includes: a blanking transfer, a good - product output line, a two - way assembly line, and an NG conveyor belt. The blanking transfer is fixedly connected to the support. The blanking transfer is arranged in front of the blanking handling module. The two - way assembly line is arranged on the left side of the blanking handling module. The good - product output line is arranged on the right side of the blanking handling module. The NG conveyor belt is arranged below the loading device.

8. A vision - based new - energy lithium - battery core appearance detection machine according to claim 1, wherein, it further includes: Labeling device, the labeling device includes: a label output component and a labeling loading component. The label output component is connected to a bracket, and the labeling loading component is arranged beside a conveying device. The labeling loading component is used to suck labels from the label output component and attach the labels to products.

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