New energy lithium cell appearance detection device based on vision

Abstract

The invention discloses a new energy lithium cell appearance detection device based on vision, which applies a detection device, and the 2D detection comprises narrow surface 2D detection, large surface 2D detection and upper and lower surface 2D detection. The narrow-face 2D detection comprises a narrow-face 2D left detection part and a narrow-face 2D right detection part, the narrow-face 2D left detection part and the narrow-face 2D right detection part are symmetrically arranged on the two sides of the narrow-face detection transplanting part, and the structures of the narrow-face 2D left detection part and the narrow-face 2D right detection part are the same; the narrow-face 2D left detector comprises a camera support block, a fine adjustment sliding block, a 2D camera, a protective cover, a lamp box and strip-shaped light sources, the fine adjustment sliding block is connected with the camera support block, the 2D camera is arranged above the fine adjustment sliding block, the protective cover is arranged above the 2D camera, the lamp box is connected with the camera support block, and the strip-shaped light sources are arranged on the edge of the lamp box in a square shape; the large surface 2D detection structure, the upper and lower surface 2D detection structure and the narrow surface 2D detection structure are the same. The problem that an existing photographing device is poor in integrity of collected images and single in function is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of appearance inspection machines, and in particular to a visual-based new energy lithium battery appearance inspection device. Background Art

[0002] Currently, lithium-ion batteries are increasingly used in applications such as mobile phones, laptops, and electric vehicles, forming a vast industrial cluster. Battery cells are intermediate products in various lithium battery forms and can be assembled into batteries of varying specifications through a packing process, such as those for electric bicycles and electric cars. Because the outer shell of a battery cell is a relatively soft composite material, consisting of the cell body and a Mylar film covering it, many quality issues are reflected in the appearance of the cell after production. Therefore, photographic inspection of the cell's appearance is necessary during the cell production process. However, existing camera devices capture images with poor integrity and limited functionality, affecting accuracy, making them difficult to use and inefficient. Summary of the Invention

[0003] The purpose of the present invention is to provide a visual-based new energy lithium battery appearance inspection device to solve the problem that the existing camera devices have poor image integrity and single function.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a vision-based new energy lithium battery appearance inspection machine, comprising a bracket, a loading device, a detection device, a material unloading and handling module and a conveying device. The loading device is connected to the bracket, the detection device is used to detect the material conveyed by the loading device, the material unloading and handling module is connected to the bracket, the material unloading and handling module classifies and unloads the material according to the detection results, and the conveying device is connected to the bracket for conveying the material conveyed by the material unloading and handling module.

[0005] Furthermore, 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 back moving device, a feeding left and right moving device, a feeding up and down moving device, a feeding buffer device, a grabbing frame and a lithium battery cell clamping assembly, the first feeding bracket is connected to the bracket, the feeding front and back moving device is arranged above the first feeding bracket, the feeding left and right moving device is connected to the feeding front and back 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 grabbing frame is connected to the buffer device, and the lithium battery cell clamping assembly is fixedly connected to the grabbing frame.

[0006] Furthermore, the detection device includes: 3D detection, transplanting device and 2D detection, and 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, and upper and lower surface 3D detection; the transplanting device includes: narrow surface detection transplanting, rotation transplanting, large surface detection transplanting, secondary flipping transplanting, and upper and lower surface photography 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 , narrow surface 2D detection is arranged on both sides of the narrow surface detection transplant in sequence; the rotary transplant can be movably arranged above the narrow surface detection transplant and the large surface detection transplant, the large surface detection transplant is arranged in front of the narrow surface detection transplant, the large surface 2D detection and the large surface 3D detection are arranged on both sides of the large surface detection transplant in sequence; the secondary flip transplant can be movably arranged above the large surface detection transplant and the upper and lower side photography transplant, the upper and lower side photography transplant is set in front of the large surface detection transplant, the upper and lower side 3D detection and the upper and lower side 2D detection are arranged on both sides of the upper and lower side photography transplant in sequence.

[0007] Furthermore, the narrow surface 3D detection includes: narrow surface 3D left detection and narrow surface 3D right detection, which are symmetrically arranged on both sides of the narrow surface detection transplant, 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, 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] Furthermore, the narrow surface 2D detection includes: narrow surface 2D left detection and narrow surface 2D right detection, which are symmetrically arranged on both sides of the narrow surface detection transplant, and the structures of the narrow surface 2D left detection and narrow surface 2D right detection are the same; the narrow surface 2D left detection includes: a camera bracket 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 bracket 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 bracket block, and the strip light source is arranged in a U-shape on the edge of the light box; the large surface 2D detection and upper and lower surface 2D detection structures are the same as the narrow surface 2D detection structure.

[0009] Furthermore, the narrow surface detection and transplanting includes: a narrow surface transmission motor, a narrow surface moving device, a narrow surface moving connecting block and a narrow surface fixing fixture, the narrow surface transmission motor is connected to the bracket, the output end of the narrow surface transmission motor is connected to the narrow surface moving device, the narrow surface moving connecting block is connected to the narrow surface moving device, and a narrow surface fixing fixture is provided above the narrow surface moving connecting block; the narrow surface fixing fixture includes: a narrow surface support base and a narrow surface side guard plate, the narrow surface support base is connected to the narrow surface moving connecting block, used to support the bottom of the battery cell, the narrow surface side guard plate is connected to the narrow surface support base, used to limit the left and right sides of the battery cell to prevent the battery cell from shaking during the movement of the narrow surface moving device.

[0010] Furthermore, the rotary transplanting includes: a reversing bracket, a reversing forward and backward moving device, a reversing up and down moving device, a rotating cylinder, a clamping cylinder and a clamping claw. The reversing bracket is connected to the bracket, the reversing forward and backward moving device is connected to the reversing bracket, the reversing up and down moving device is connected to the reversing forward and backward moving device, the rotating cylinder is connected to the reversing up and 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 claw; the rotating cylinder is used to drive the clamping cylinder to rotate, thereby turning the lithium battery cell 90°.

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

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

[0013] Furthermore, it also includes: a labeling device, which includes: a labeling component and a labeling loading component, the labeling component is connected to the bracket, the labeling loading component is arranged next to the conveying device, and the labeling loading component is used to absorb the label from the labeling 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 loading device continuously transports the lithium battery cells to be tested toward the testing device. The testing device is used to perform appearance inspection on the lithium battery cells. The unloading and handling module transports the lithium battery cells to the corresponding conveying device according to the test results. The entire testing process is highly automated and does not require manual intervention. While ensuring the quality of appearance inspection, it reduces the waste of human resources and saves production costs.

[0016] 2. The loading device, testing device, unloading and handling module, and conveying device have a streamlined structure and compact layout, which can meet various accuracy and quality requirements of appearance inspection in a smaller space, with high space utilization. The transplanting device, 3D inspection, and 2D inspection are arranged in a reasonable space to work together to complete the appearance inspection action, reducing the secondary damage to the battery cells caused by the handling of the battery cells during the inspection process. At the same time, through a reasonable layout, unnecessary efficiency waste is reduced as much as possible, ensuring the quality and efficiency of the appearance inspection.

[0017] 3. Both the loading device and the transplanting device adopt double stations, which can inspect two lithium batteries at a time. The station structure is compact, which is conducive to improving inspection efficiency and camera utilization, and reducing costs.

[0018] 4. 3D inspection and 2D inspection use 3D cameras and 2D cameras to perform visual inspection on the surface of lithium batteries respectively. With the use of software, they can detect scratches on the product surface, whether the electrolyte leaks, the flatness and parallelism of each surface, with high inspection accuracy and inspection diversity. At the same time, self-made light box components are placed in pairs. The light sources in the light boxes on both sides coordinate and alternate as backup lights. The cameras shoot at the same time, and the imaging environment is good. 3D cameras and 2D cameras are placed in pairs to directly perform 3D stereo imaging and 2D image capture of the product, with high-efficiency inspection 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 This is a schematic diagram of the overall explosion structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the feeding and connecting conveyor line of the present invention;

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

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

[0024] Figure 6 This is a structural diagram of the blanking and handling module of the present invention;

[0025] Figure 7This is a schematic diagram of the transplanting structure of the present invention;

[0026] Figure 8 This is a schematic diagram of the narrow surface 2D left detection structure of the present invention;

[0027] Figure 9 It is a structural schematic diagram of the labeling device of the present invention.

[0028] Description: Bracket 1; loading device 2; detection device 3; unloading and handling module 4; conveying device 5; loading connection conveyor line 21; loading mechanism 22; first loading bracket 221; loading forward and backward moving device 222; loading left and right moving device 223; loading up and down moving device 224; loading buffer device 225; grabbing frame 226; lithium battery cell clamping jaw assembly 227; loading bracket 211; loading protection plate 212; loading conveying roller 213; roller driving motor 214; code reading bracket 215; code scanning device 216; clamping jaw up and down moving cylinder 2271; clamping jaw connecting block 2272; clamping jaw driving cylinder 2273; clamping jaw block 227 4; 3D detection 31; transplanting device 32; 2D detection 33; narrow surface 3D detection 311; large surface 3D detection 312; upper and lower surface 3D detection 313; narrow surface detection and transplanting 321; rotation transplanting 322; large surface detection and transplanting 323; secondary flipping and transplanting 324; upper and lower surface photography and transplanting 325; narrow surface 2D detection 331; large surface 2D detection 332; upper and lower surface 2D detection 333; narrow surface 3D left detection 3111; narrow surface 3D right detection 3112; 3D camera 31111; fixing assembly 31112; narrow surface 2D left detection 3311; narrow surface 2D right detection 3312; camera support block 33111; fine-tuning slider 3311 2; 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 connecting block 3213; narrow surface fixing fixture 3214; narrow surface support base 32141; narrow surface side guard plate 32142; reversing bracket 3221; reversing forward and backward moving device 3222; reversing up and down moving device 3223; rotating cylinder 3224; clamping cylinder 3225; clamping claw 3226; large surface drive motor 3231; large surface moving device 3232; large surface moving connecting block 3233; large surface fixing fixture 3234; secondary flip bracket 32 41; secondary moving device 3242; secondary clamping device 3243; upper transmission motor 3251; upper moving device 3252; upper moving frame 3253; upper forward and backward moving device 3254; upper clamping plate 3255; upper clamping cylinder 3256; upper clamping claw 3257; unloading bracket 41; unloading left and right moving device 42; unloading up and down moving device 43; unloading clamping device 44; unloading transfer 51; good product output line 52; two-way assembly line 53; NG conveyor belt 54; unloading support device 511; unloading rotating device 512; unloading receiving device 513; labeling device 6; labeling component 61; labeling loading component 62. DETAILED DESCRIPTION

[0029] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

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

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

[0032] As attached Figure 1 and attached Figure 2 As shown, a visual-based new energy lithium battery appearance inspection machine includes a bracket 1. In order to prevent factors such as vibration and resonance, the bracket 1 adopts an anti-vibration foot cup; it also includes a loading device 2, a detection device 3, a material unloading and handling module 4 and a conveying device 5. The loading device 2 is connected to the bracket 1, the detection device 3 is used to detect the material conveyed by the loading device 2, the unloading and handling module 4 is connected to the bracket 1, the unloading and handling module 4 classifies and unloads the material according to the detection result, and the conveying device 5 is connected to the bracket 1 for conveying the material conveyed by the unloading and handling module 4; it also includes a controller for controlling the operation of the entire equipment. The control circuit of the controller can be realized by simple programming by technicians in this field, which is common knowledge in this field; the loading device 2, the detection device 3, the material unloading and handling module 4 and the conveying device 5 are introduced in detail below.

[0033] As attached Figure 4As shown, 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 and back moving device 222, a feeding left and right moving device 223, a feeding up and down moving device 224, a feeding buffer device 225, a grabbing frame 226 and a lithium battery clamping assembly 227, the first feeding bracket 221 is connected to the bracket 1, the feeding front and back moving device 222 is arranged above the first feeding bracket 221, the feeding left and right moving device 223 is connected to the feeding front and back moving device 222, the feeding up and down moving device 224 is connected to the feeding left and right moving device 223, the buffer device is connected to the feeding up and down moving device 224, the grabbing frame 226 is connected to the buffer device, and the lithium battery clamping assembly 227 is fixedly connected to the grabbing frame 226.

[0034] The loading forward and backward moving device 222 drives the loading left and right moving device 223 to move forward and backward, the loading left and right moving device 223 drives the loading up and down moving device 224 to move left and right, the loading up and down moving device 224 drives the lithium battery clamping assembly 227 to move up and down, and then drives the lithium battery clamping assembly 227 to move between the loading connection conveyor line 21, the NG conveyor belt 54, the narrow surface 3D detection 311, and the narrow surface detection transplantation 321 to realize automatic loading detection.

[0035] As attached Figure 3 As shown, the feeding connection conveyor line 21 includes: a feeding bracket 211, a feeding protection plate 212, a feeding conveying roller 213, a roller drive motor 214, a code reading bracket 215, and a code scanning device 216. The feeding bracket 211 is arranged on the side of the bracket 1, and the feeding conveying roller 213 is rotatably arranged on the feeding bracket 211, and the lithium battery cell for conveyor belt detection is 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 conveying roller 213 to rotate. The feeding protection plate 212 is arranged on the left and right sides of the feeding bracket 211, and the code reading bracket 215 is arranged on the side of 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 cell.

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

[0037] The lithium battery cells to be inspected are continuously conveyed to the loading conveyor roller 213, which drives the lithium battery cells to move toward the loading mechanism 22. The code scanning device 216 reads the material information of the lithium battery cells and transmits the read information to the controller. The loading mechanism 22 places the corresponding lithium battery cells in the corresponding position according to the information fed back by the code scanning device 216; if the code scanning is NG, the loading mechanism 22 transfers the lithium battery cells to the NG conveyor belt 54; if the code reading is OK, the loading mechanism 22 transfers the lithium battery cells to the narrow surface 3D detection 311 for 3D detection 31; after completing the 3D detection 31, the loading mechanism 22 places the lithium battery cells to the narrow surface detection transfer 321.

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

[0039] The detection device 3 detects all six surfaces of the lithium battery cell. The narrow surface 3D detection 311 and the narrow surface 2D detection 331 are used to detect the two narrow surfaces. The large surface 3D detection 312 and the large surface 2D detection 332 are used to detect the two large surfaces. The upper and lower surface 3D detection 313 and the upper and lower surface 2D detection 333 are used to detect the two upper and lower surfaces. The feeding mechanism 22 clamps the lithium battery cell to be detected and places it on the narrow surface 3D detection 311 for detection. After the narrow surface detection is completed, the feeding mechanism 22 places the lithium battery cell on the narrow surface detection transplant 321. The narrow surface detection transplant 321 drives the lithium battery cell to move to the narrow surface 2D detection 331. After the narrow surface detection is completed, the narrow surface detection transplant 321 drives the lithium battery cell to move to the material removal position of the rotary transplant 322. The rotary transplant 322 grabs the lithium battery cell, rotates the lithium battery cell 90°, and moves it to the narrow surface 2D detection 331. Large surface 2D inspection 332, place the lithium battery cell at the large surface 2D inspection 332 for inspection, after the large surface inspection is completed, the rotary transfer 322 grabs the lithium battery cell and transports the lithium battery cell to the large surface inspection transfer 323, the large surface inspection transfer 323 drives the lithium battery cell to move to the large surface 3D inspection 312, after the large surface inspection is completed, the large surface inspection transfer 323 drives the lithium battery cell to the material taking position of the secondary flip transfer 324, the secondary flip transfer 324 grabs the lithium battery cell and transports the lithium battery cell to the upper and lower surface photographing transfer 325, the upper and lower surface photographing transfer 325 drives the lithium battery cell to move to the upper and lower surface 3D inspection 313, perform 3D inspection 31 on the upper and lower surfaces of the lithium battery cell, after the upper and lower surface inspection is completed, the upper and lower surface photographing transfer 325 drives the lithium battery cell to the upper and lower surface 2D inspection 333, and now the six surface inspections of the lithium battery cell are completed.

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

[0041] The narrow surface 3D left detection 3111 is used to detect the first narrow surface of the lithium battery cell, and the narrow surface 3D right detection 3112 is used to detect the second narrow surface of the lithium battery cell; the 3D camera 31111 can perform 3D shaping, contour imaging, and feed back the imaging information to the controller. The controller compares the stereoscopic image taken by the 3D camera 31111 with the standard image through a program, detects the flatness and parallelism of the narrow surface, and detects whether the narrow surface has scratches, pinholes, or wrinkles; the detection methods of the large surface 3D detection 312 and the upper and lower surface 3D detection 313 are the same as those of the narrow surface 3D detection 311, and detect the two large surfaces and the two upper and lower surfaces of the lithium battery cell respectively; by using the 3D camera 31111 for detection and utilizing 3D stereo images, multiple technical detections such as whether there are scratches, pinholes, wrinkles, flatness, parallelism, etc. on the surface of the lithium battery cell can be avoided, thereby avoiding the problem of the existing technology that can only detect surface scratches and has a single function, thereby improving the detection accuracy.

[0042] As attached Figure 8 As shown, the narrow surface 2D detection 331 includes: a narrow surface 2D left detection 3311 and a narrow surface 2D right detection 3312, which are symmetrically arranged on both sides of the narrow surface detection transplant 321, and the narrow surface 2D left detection 3311 and the narrow surface 2D right detection 3312 have the same structure; the narrow surface 2D left detection 3311 includes: a camera bracket 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 bracket block 33111, and the fine-tuning slider 33112 is connected to the camera bracket block 33111. A 2D camera 33113 is provided above the block 33112, a protective cover 33114 is provided above the 2D camera 33113, a light box 33115 is connected to the camera bracket block 33111, and a strip light source 33116 is arranged in a U-shape on the edge of the light box 33115; the structure of the large surface 2D detection 332 and the upper and lower surface 2D detection 333 is the same as that of the narrow surface 2D detection 331; the light boxes 33115 of the narrow surface 2D left detection 3311 and the narrow surface 2D right detection 3312 are placed opposite each other, and the internal light sources of the light boxes 33115 on both sides of the transplanting device 32 coordinate and alternate as backup lighting, and the cameras work simultaneously to take pictures, so as to improve the detection quality.

[0043] The narrow surface 2D left detection 3311 is used to perform 2D detection 33 on the first narrow surface of the lithium battery cell, and the narrow surface 2D right detection 3312 is used to perform 2D detection 33 on the second narrow surface of the lithium battery cell; the 2D camera 33113 is used to take pictures of the lithium battery cell and feed back the corresponding image information 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 is leaking; the detection methods of the large surface 2D detection 332 and the upper and lower surface 2D detection 333 are the same as the narrow surface 2D detection 331, and the two large surfaces and the two upper and lower surfaces of the lithium battery cell are detected respectively.

[0044] As attached Figure 5 As shown, the narrow surface detection and transplanting 321 includes: a narrow surface transmission motor 3211, a narrow surface moving device 3212, a narrow surface moving connecting block 3213 and a narrow surface fixing fixture 3214, the narrow surface transmission motor 3211 is connected to the bracket 1, the output end of the narrow surface transmission motor 3211 is connected to the narrow surface moving device 3212, the narrow surface moving connecting block 3213 is connected to the narrow surface moving device 3212, and a narrow surface fixing fixture 3214 is provided above the narrow surface moving connecting block 3213; the narrow surface fixing fixture 3214 includes: a narrow surface support base 32141 and a narrow surface side guard plate 32142, the narrow surface support base 32141 is connected to the narrow surface moving connecting block 3213, and is used to support the bottom of the battery cell, and the narrow surface side guard plate 32142 is connected to the narrow surface support base 32141, and is used to limit the left and right sides of the battery cell to prevent the battery cell from shaking during the movement of the narrow surface moving device 3212.

[0045] The narrow surface transmission motor 3211 is in motion, driving the narrow surface moving device 3212 to move, thereby driving the narrow surface moving connecting block 3213 to move back and forth between the narrow surface 2D detection 331 and the rotary transfer 322. The narrow surface fixed fixture 3214 moves along with the narrow surface moving connecting block 3213. The narrow surface fixed fixture 3214 is used to support the lithium battery cell to be tested; the narrow surface moving device 3212 drives the lithium battery cell to be transferred to the narrow surface 2D detection 331 for 2D detection 33. After the lithium battery cell detection is completed, it is transferred to the material removal position of the rotary transfer 322.

[0046] As attached Figure 6As shown, the rotary transplanting 322 includes: a reversing bracket 3221, a reversing forward and backward moving device 3222, a reversing up and down moving device 3223, a rotating cylinder 3224, a clamping cylinder 3225 and a clamping claw 3226. The reversing bracket 3221 is connected to the bracket 1, the reversing forward and backward moving device 3222 is connected to the reversing bracket 3221, the reversing up and down moving device 3223 is connected to the reversing forward and backward moving device 3222, the rotating cylinder 3224 is connected to the reversing up and down moving device 3223, the clamping cylinder 3225 is connected to the rotating cylinder 3224, and the output end of the clamping cylinder 3225 is connected to the clamping claw 3226; the rotating cylinder 3224 is used to drive the clamping cylinder 3225 to rotate, thereby turning the lithium battery cell 90°.

[0047] The forward and backward moving device 3222 drives the upward and downward moving device 3223 to move forward and backward, and the upward and downward moving device drives the rotating cylinder 3224 to move up and down, so that the clamping cylinder 3225 moves back and forth between the narrow surface detection and transplantation 321 and the large surface detection and transplantation 323. The clamping cylinder 3225 clamps the lithium battery cell from the narrow surface detection and transplantation 321 and transports the lithium battery cell to the large surface detection and transplantation 323 for large surface detection.

[0048] As attached Figure 5 As shown, the large surface detection and transplantation 323 includes: a large surface transmission motor 3231, a large surface moving device 3232, a large surface moving connecting block 3233 and a large surface fixing fixture 3234. The large surface transmission motor 3231 is connected to the bracket 1, the output end of the large surface transmission motor 3231 is connected to the large surface moving device 3232, the large surface moving connecting block 3233 is connected to the large surface moving device 3232, and a large surface fixing fixture 3234 is provided above the large surface moving connecting block 3233.

[0049] After the large-surface 2D inspection 332 of the lithium battery cell is completed, it is placed in the large-surface fixing fixture 3234. The large-surface transmission motor 3231 is activated, driving the large-surface moving device 3232 to move to the large-surface 3D inspection 312, and the large surface is subjected to 3D photo inspection. After completing the 3D inspection 31, the large-surface moving device 3232 continues to move forward to the material removal position of the secondary flipping and transferring 324.

[0050] As attached Figure 6 As shown, the secondary flipping transfer 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, and the secondary clamping device 3243 is connected to the secondary moving device 3242.

[0051] The secondary moving device 3242 drives the secondary clamping device 3243 to move back and forth between the large surface inspection transplant 323 and the upper and lower surface photography transplant 325, so that the secondary clamping device 3243 clamps the lithium battery cell from the large surface inspection transplant 323 and transports the clamped lithium battery cell to the upper and lower surface photography transplant 325 for the next step of inspection.

[0052] As attached Figure 7 As shown, the upper and lower photographing transplanting 325 includes: an upper transmission motor 3251, an upper moving device 3252, an upper moving frame 3253, an upper front-back moving device 3254, an upper clamping plate 3255, an upper clamping cylinder 3256 and an upper clamping claw 3257. The upper transmission motor 3251 is connected to the bracket 1, and the output end of the upper transmission motor 3251 is connected to the upper moving device 3252. The upper moving frame 3253 is provided above the upper moving device 3252, and the upper front-back moving device 3254 is provided above the upper moving frame 3253. The upper clamping plate 3255 is provided above the upper front-back moving device 3254. The upper clamping cylinder 3256 is connected to the upper clamping plate 3255, and the output end of the upper clamping cylinder 3256 is connected to the upper clamping claw 3257.

[0053] The upper transmission motor 3251 is activated to drive the upper moving device 3252 to move left and right, driving the upper front and rear moving device 3254 to move left and right. The upper front and rear moving device 3254 is activated to drive the upper clamping cylinder 3256 to move back and forth, thereby driving the upper clamping cylinder 3256 to pick up and place the lithium battery cell. The clamping cylinder drives the upper clamping claw 3257 to open or close to take or unload the material. When the upper moving device 3252 drives the upper front and rear moving device 3254 to move left and right, it drives the lithium battery cell clamped by the upper clamping cylinder 3256 to move through the upper and lower 3D detection 313. The upper and lower 3D detection 313 takes pictures of the upper and lower surfaces for detection. After completing the upper and lower 3D detection 31, the product has been transferred to the upper and lower 2D detection 333. After completing the upper and lower 2D detection 33, the upper front and rear moving device 3254 is activated to push the lithium battery cell to the lower material transfer 51.

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

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

[0056] As attached Figure 2 As shown, the conveying device 5 includes: a material unloading adapter 51, a good product output line 52, a two-way assembly line 53, and an NG conveyor belt 54. The material unloading adapter 51 is fixedly connected to the bracket 1, and the material unloading adapter 51 is arranged in front of the material unloading and handling module 4, the two-way assembly line 53 is arranged on the left side of the material unloading and handling module 4, the good product output line 52 is arranged on the right side of the material unloading and handling module 4, and the NG conveyor belt 54 is arranged below the loading device 2; the material unloading adapter 51 is used to receive products after inspection, the good product output line 52 is used to convey products that have passed the inspection, 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 products that have failed the inspection, the second-inspection qualified conveyor line is used to convey products that have passed the manual re-inspection, and the NG conveyor belt 54 is used to convey products that have failed the code reading by the code scanning device 216.

[0057] The material unloading adapter 51 includes: a material unloading support device 511, a material unloading rotating device 512, and a material unloading receiving device 513. A material unloading rotating device 512 is provided above the material unloading support device 511, and a material unloading receiving device 513 is provided above the material unloading rotating device 512. The material unloading receiving device 513 is used to receive the lithium battery cells after inspection pushed by the upper and lower surface photographing transplanter 325. The material unloading rotating device 512 drives the material unloading receiving device 513 to rotate 90°, and adjusts the lithium battery cells to a position convenient for the material unloading and handling module 418 to take the materials.

[0058] As attached Figure 9 As shown, it also includes: a labeling device 6, which includes: a labeling component 61 and a labeling loading component 62. The labeling component 61 is connected to the bracket 1, and the labeling loading component 62 is arranged on the side of the conveying device 5. The labeling loading component 62 is used to absorb labels from the labeling component 61 and attach the labels to the products; the rolled labels are put on the labeling component 61, and the labeling loading component 62 absorbs the labels conveyed by the labeling component 61 and attaches the labels to the qualified products; the qualified output line 52 conveys the qualified lithium battery cells to the labeling loading component 62, and the labeling loading component 62 attaches the absorbed labels above the lithium battery cells to complete the labeling. The lithium battery cells continue to move along the qualified output line 52, and the lithium battery cells that have completed the inspection are sent out of the equipment.

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

Claims

1. A visual new energy lithium battery appearance inspection device, including a bracket, using a detection device, characterized in that: The detection device includes: a transplanting device and a 2D detection device. The transplanting device includes: a narrow surface detection transplanter. The 2D detection includes: a narrow surface 2D detection, a large surface 2D detection and an upper and lower surface 2D detection. The narrow surface 2D detection includes: a narrow surface 2D left detection and a narrow surface 2D right detection. The narrow surface 2D left detection and the narrow surface 2D right detection are symmetrically arranged on both sides of the narrow surface detection transplanter, 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 provided above the fine-tuning slider, the protective cover is provided above the 2D camera, the light box is connected to the camera support block, and the strip light source is arranged in a U-shape on the edge of the light box. The large surface 2D detection and upper and lower surface 2D detection structures are the same as the narrow surface 2D detection structure.

2. A visual new energy lithium battery appearance inspection device according to claim 1, characterized in that: The transplanting device also includes: rotary transplanting, large-surface detection transplanting, secondary flipping transplanting, and upper and lower surface photography transplanting. The detection device also includes 3D detection, and the 3D detection includes: narrow-surface 3D detection, large-surface 3D detection, and upper and lower surface 3D detection; 3D detection and 2D detection are respectively arranged on both sides of the transplanting device; the narrow-surface detection transplanting is arranged above the bracket, and the narrow-surface 3D detection and narrow-surface 2D detection are arranged in sequence 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, and 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 arranged in sequence 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 photography transplanting, and the upper and lower surface photography 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 arranged in sequence on both sides of the upper and lower surface photography transplanting.

3. The visual new energy lithium battery appearance inspection device according to claim 1, characterized in that: The narrow surface detection and transplanting device includes: a narrow surface transmission motor, a narrow surface moving device, a narrow surface moving connecting block and a narrow surface fixing fixture. The narrow surface transmission motor is connected to the bracket, the output end of the narrow surface transmission motor is connected to the narrow surface moving device, the narrow surface moving connecting block is connected to the narrow surface moving device, and a narrow surface fixing fixture is provided above the narrow surface moving connecting block; the narrow surface fixing fixture includes: a narrow surface support base and a narrow surface side guard plate. The narrow surface support base is connected to the narrow surface moving connecting block and is used to support the bottom of the battery cell. The narrow surface side guard plate is connected to the narrow surface support base and is used to limit the left and right sides of the battery cell.

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