Visual inspection apparatus for solid tabs

Abstract

The utility model relates to a kind of visual inspection devices of solid-state tab, including material receiving assembly, first camera assembly, turnover assembly, second camera assembly, first carrying assembly and second carrying assembly, first carrying assembly is used to carry tab between material receiving assembly, first camera assembly and turnover assembly, the second carrying assembly is used to carry tab between turnover assembly, second camera assembly, the material receiving assembly includes vacuum suction plate, multiple tabs are side by side and are adsorbed on vacuum suction plate, the first camera assembly includes glass platform for placing tab and longitudinally movable CCD camera, the turnover assembly includes placement platform and turnover vacuum plate that can be 180 ° turnover.The utility model can replace artificial detection, can realize two pieces of tab are photographed simultaneously in double-track production line rhythm time, high degree of automation, improve detection efficiency, improve detection precision, reduce the missed detection, misjudgment etc.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery tab detection technology, specifically to a visual inspection device for solid-state tabs. Background Technology

[0002] With the rapid development of the new energy vehicle industry, the performance and quality of power batteries, as one of the core components, directly affect the safety, driving range and service life of the entire vehicle. Electrode testing is one of the important testing items for power batteries.

[0003] Currently, the appearance and dimensions of the electrode tabs are inspected manually: the appearance is checked visually, and the dimensions are measured manually using specialized measuring tools. This method has the following drawbacks: 1. The appearance inspection of the electrode relies on manual visual inspection, which is subjective and subject to fatigue. 2. The tab size measurement relies on external measuring tools, resulting in low measurement accuracy; 3. Manual inspection is time-consuming and prone to false positives or false negatives.

[0004] Therefore, there is an urgent need to design a visual inspection device for solid-state electrodes to replace manual inspection, improve inspection efficiency and accuracy, and reduce the occurrence of missed detections and misjudgments that may occur during manual inspection. Utility Model Content

[0005] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a visual inspection device for solid electrode tabs. This device uses automated inspection equipment to replace manual inspection, reducing the occurrence of missed inspections and misjudgments that may occur during manual inspection. It is compatible with the mainstream power electrode tab linear machine production equipment currently on the market, enabling fully automated handling and automatic inspection.

[0006] The purpose of this utility model is achieved as follows: A visual inspection device for solid electrode tabs includes a receiving assembly, a first camera assembly, a flipping assembly, a second camera assembly, a first transport assembly, and a second transport assembly. The first transport assembly is used to transport the electrode tabs between the receiving assembly, the first camera assembly, and the flipping assembly. The second transport assembly is used to transport the electrode tabs between the flipping assembly and the second camera assembly. The receiving assembly includes a vacuum suction plate on which multiple electrode tabs are adsorbed side by side. The first camera assembly includes a glass platform for placing the electrode tabs and a CCD camera that can move longitudinally. The flipping assembly includes a placement platform and a flipping vacuum plate that can be rotated 180°.

[0007] Preferably, the vacuum suction plate is driven by a transverse cylinder to perform reciprocating linear motion, moving the electrode to be tested from the receiving position to the loading position. The transverse cylinder is fixed on the receiving base, and the receiving base is fixed on the equipment platform.

[0008] Preferably, the transverse cylinder is an Airtac RMS series rodless cylinder, the rod of the transverse cylinder is fixed below the top plate of the receiving base, and the slider of the transverse cylinder is connected to the vacuum suction plate through a connecting plate.

[0009] Preferably, the top plate is equipped with a buffer limiting pin module for the vacuum suction plate corresponding to the material receiving position and the material feeding position, and the buffer limiting pin module is fixed on the guide shaft.

[0010] Preferably, the first camera assembly is used for visual inspection of the front of the tab, and the second camera assembly is used for visual inspection of the back of the tab. The first camera assembly and the second camera assembly have the same structure. The glass platform is supported and fixed on the equipment platform. The CCD camera is fixed on the camera column. The camera column is driven to move back and forth by a longitudinal lead screw. The longitudinal lead screw is supported and fixed on the equipment platform. A coaxial light source is provided below the CCD camera. A ring light source is provided between the coaxial light source and the glass platform. A backlight source is provided below the glass platform.

[0011] Preferably, the first conveying component includes a linear module, a conveying claw base, a lifting cylinder, and a conveying claw. The conveying claw base is driven to move laterally by the linear module. The lifting cylinder is fixed on the conveying claw base, and the movable end of the lifting cylinder is connected to the conveying claw. The conveying claw is U-shaped, and both sides of the conveying claw are provided with vacuum suction cups. Each side is provided with multiple vacuum suction cups, and each side can simultaneously adsorb multiple tabs.

[0012] Preferably, the flipping assembly further includes a flipping column, a rotating cylinder, and a flipping disc. The rotating cylinder is fixed on the flipping column, the rotating shaft of the rotating cylinder is connected to the flipping disc, the flipping disc is connected to the flipping vacuum plate, and the placement platform is located on the right side of the flipping vacuum plate for placing the flipped tabs.

[0013] The beneficial effects of this utility model are: 1. Replacing manual visual inspection with a camera significantly reduces the risk of missed detections; 2. The CDD camera is movable and can capture images of two electrode tabs within the cycle time of a dual-track production line; 3. The testing process is fully automated, eliminating the risk of electrode malfunction caused by manual handling; 4. It eliminates the visual fatigue that can occur with manual inspection, thus improving production efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a visual inspection device for solid-state electrodes according to the present invention.

[0015] Figure 2 This is a schematic diagram of the material receiving assembly.

[0016] Figure 3 This is a schematic diagram of the structure of the first camera assembly.

[0017] Figure 4 This is a schematic diagram of the flip component.

[0018] Figure 5 This is a schematic diagram of the structure of the first transport component.

[0019] in: Material receiving assembly 1; Vacuum suction plate 1.1; Horizontal movement cylinder 1.2; Material receiving base 1.3; Top plate 1.3.1; Connecting plate 1.4; Linear sliding pair 1.5; Buffer limit pin module 1.6; Guide shaft 1.7; First camera assembly 2; Glass platform 2.1; Camera column 2.2; Longitudinal lead screw 2.3; Lead screw motor 2.4; CCD camera 2.5; Coaxial light source 2.6; Ring light source 2.7; Backlight light source 2.8; Flip assembly 3; Flip column 3.1; Rotary cylinder 3.2; Flip disc 3.3; Flip vacuum plate 3.4; Placement platform 3.5; Second camera assembly 4; First handling assembly 5; Linear module 5.1; Handling claw base 5.2; Lifting cylinder 5.3; Handling claw 5.4; Vacuum suction cup 5.5; Second handling assembly 6; Electrode 7; Equipment platform 8. Detailed Implementation

[0020] See Figure 1-5 This utility model relates to a visual inspection device for solid electrode tabs, including a receiving component 1, a first camera component 2, a flipping component 3, a second camera component 4, a first transport component 5, and a second transport component 6. The first transport component 5 is used to transport the electrode tab between the receiving component 1, the first camera component 2, and the flipping component 3, and the second transport component 6 is used to transport the electrode tab between the flipping component 3 and the second camera component 4.

[0021] The receiving assembly 1 includes a laterally movable vacuum suction plate 1.1. Electrodes 7 from the production line are conveyed onto the vacuum suction plate 1.1, with two electrodes 7 arranged side-by-side and adsorbed onto it. The vacuum suction plate 1.1 is driven by a transverse cylinder 1.2 to perform reciprocating linear motion, moving the electrode to be tested from the receiving position to the loading position. The transverse cylinder 1.2 is fixed to the receiving base 1.3, which is fixed to the equipment platform 8. The transverse cylinder 1.2 is an Airtac RMS series rodless cylinder, and its rod is fixed to the receiving position. Below the top plate 1.3.1 of the base 1.3, the slider of the transverse cylinder 1.2 is connected to the vacuum suction plate 1.1 via the connecting plate 1.4. The top plate 1.3.1 is provided with a through hole to facilitate the passage of the connecting plate 1.4. In order to ensure the smooth movement of the vacuum suction plate 1.1, a linear sliding pair 1.5 is provided between the vacuum suction plate 1.1 and the top plate 1.3.1. The two linear sliding pairs 1.5 are symmetrically arranged on the front and rear sides of the transverse cylinder 1.2. The sliding groove of the linear sliding pair 1.5 is on the bottom surface of the vacuum suction plate 1.1, and the slide rail of the linear sliding pair 1.5 is fixed on the top plate 1.3.1.

[0022] The vacuum suction plate 1.1 moves from the receiving position on the left to the loading position on the right. The top plate 1.3.1 is equipped with a buffer limiting pin module 1.6 for the vacuum suction plate 1.1 corresponding to the receiving position and the loading position. The buffer limiting pin module 1.6 is fixed on the guide shaft 1.7. The position of the buffer limiting pin module 1.6 can be adjusted according to production needs.

[0023] The first camera assembly 2 is used for visual inspection of the front of the tab, and the second camera assembly 4 is used for visual inspection of the back of the tab. The first camera assembly 2 and the second camera assembly 4 have the same structure. The first camera assembly 2 includes a glass platform 2.1 and a longitudinally movable camera column 2.2. The glass platform 2.1 is supported and fixed on the equipment platform 8. The camera column 2.2 is driven to move back and forth by a longitudinal lead screw 2.3. The longitudinal lead screw 2.3 is supported and fixed on the equipment platform 8. The lead screw motor 2.4 drives the longitudinal lead screw 2.3 to rotate, thereby driving the lead screw nut and the camera column 2.2 on it to move longitudinally. A CCD camera 2.5 is connected to the top of the camera column 2.2. A coaxial light source 2.6 is provided below the CCD camera 2.5. A ring light source 2.7 is provided between the coaxial light source 2.6 and the glass platform 2.1. A backlight source 2.8 is provided below the glass platform 2.1. Two tabs 7 are simultaneously transported to the glass platform 2.1. To prevent mutual interference during inspection, the CCD camera 2.5 moves longitudinally along the camera column 2.2. The position of the CCD camera 2.5 is adjusted so that one tab is directly below it. After the tab is inspected, the CCD camera 2.5 is moved to directly above the other tab for inspection. This allows for the imaging of two tabs within the cycle time of the dual-track production line, greatly improving inspection efficiency. The CCD camera 2.5 transmits the acquired image information to the industrial control computer for storage, automatically recording inspection information. This information is then processed by the built-in image vision inspection system of the industrial control computer to perform dimensional inspection of the tabs. Multiple light sources provide high-quality, highly stable input images for subsequent image processing algorithms, ensuring the accuracy and reliability of the inspected structure.

[0024] The first conveying assembly 5 includes a linear module 5.1, a conveying claw base 5.2, a lifting cylinder 5.3, and a conveying claw 5.4. The conveying claw base 5.2 is driven to move laterally by the linear module 5.1. The lifting cylinder 5.3 is fixed on the conveying claw base 5.2, and the movable end of the lifting cylinder 5.3 is connected to the conveying claw 5.4. The conveying claw 5.4 is U-shaped, and vacuum suction cups 5.5 are provided on both side walls of the conveying claw 5.4. There are two vacuum suction cups 5.5 on each side, and each side can simultaneously adsorb two tabs 7.

[0025] The flipping assembly 3 includes a flipping column 3.1, a rotary cylinder 3.2, a flipping disc 3.3, a flipping vacuum plate 3.4, and a placement platform 3.5. The rotary cylinder 3.2 is fixed on the flipping column 3.1, and its rotation shaft is connected to the flipping disc 3.3. The flipping disc 3.3 is connected to the flipping vacuum plate 3.4. The placement platform 3.5 is located on the right side of the flipping vacuum plate 3.4 and is used to place the flipped tabs 7. After the front of the tabs is inspected, they are transported to the flipping vacuum plate 3.4 by the first transport assembly 5. The flipping vacuum plate 3.4 adsorbs and fixes the tabs. The rotary cylinder 3.2 rotates 180°, causing the flipping vacuum plate 3.2 and the tabs on it to complete a 180° flip and be placed on the placement platform 3.5, awaiting inspection of the back of the tabs.

[0026] The first transport assembly 5 and the second transport assembly 6 have the same structure. In the first transport assembly 5, the vacuum suction cup 5.5 located to the left of the transport claw 5.4 is used for transporting the electrode tabs between the vacuum suction plate 1.1 and the glass platform 2.1 of the first camera assembly 2, and the vacuum suction cup 5.5 located to the right is used for transporting the electrode tabs between the glass platform 2.1 and the flip vacuum plate 3.4. In the second transport assembly 6, the vacuum suction cup 5.5 located to the left of the transport claw 5.4 is used for transporting the electrode tabs between the placement platform 3.5 and the glass platform of the second camera assembly 4, and the vacuum suction cup 5.5 located to the right is used for removing the electrode tabs from the glass platform of the second camera assembly 4.

[0027] Working principle: Finished electrodes produced from the electrode production line fall onto the vacuum suction plate 1.1 of the receiving assembly 1. The vacuum suction plate 1.1 holds the electrodes, and the transverse cylinder 1.2 moves the vacuum suction plate 1.1 and the electrodes 7 on it from the receiving position on the left to the loading position. The first conveying component 5 conveys the electrode 7 from the loading position to the glass platform 2.1 of the first camera component 2. The CCD camera 2.5 of the first camera component 2 is adjustable front and back, and performs frontal visual inspection on the electrode on the glass platform 2.1 one by one. The first conveying component 5 then conveys the electrode to the flipping vacuum plate 3.4. After the rotary cylinder 3.2 drives the flipping vacuum plate 3.4 and the electrode tabs adsorbed on it to flip 180°, the negative pressure of the flipping vacuum plate 3.4 is released, and the electrode tabs 7 are placed on the placement platform 3.5. The second transport component 6 transports the electrode tabs from the placement platform 3.5 to the glass platform of the second camera component 4. The CCD camera of the second camera component 4 is adjustable front and back, and performs back visual inspection on the electrodes on the glass platform one by one. After the inspection is completed, the second transport component 6 removes the electrodes.

[0028] In addition to the above embodiments, this utility model also includes other implementation methods. All technical solutions formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of this utility model.

Claims

1. A visual inspection device for solid-state electrodes, characterized in that: The device includes a receiving assembly, a first camera assembly, a flipping assembly, a second camera assembly, a first transport assembly, and a second transport assembly. The first transport assembly is used to transport the electrode tabs between the receiving assembly, the first camera assembly, and the flipping assembly. The second transport assembly is used to transport the electrode tabs between the flipping assembly and the second camera assembly. The receiving assembly includes a vacuum suction plate on which multiple electrode tabs are adsorbed side by side. The first camera assembly includes a glass platform for placing the electrode tabs and a CCD camera that can move longitudinally. The flipping assembly includes a placement platform and a flipping vacuum plate that can be rotated 180°.

2. The visual inspection device for solid-state electrodes according to claim 1, characterized in that: The vacuum suction plate is driven by a transverse cylinder to perform reciprocating linear motion, moving the electrode to be tested from the receiving position to the loading position. The transverse cylinder is fixed on the receiving base, and the receiving base is fixed on the equipment platform.

3. The visual inspection device for solid-state electrodes according to claim 2, characterized in that: The transverse cylinder adopts the Airtac RMS series rodless cylinder. The rod of the transverse cylinder is fixed below the top plate of the receiving base, and the slider of the transverse cylinder is connected to the vacuum suction plate through the connecting plate.

4. The visual inspection device for solid-state electrodes according to claim 3, characterized in that: The top plate is equipped with buffer limit pin modules for the vacuum suction plates of the material receiving position and the material feeding position. The buffer limit pin modules are fixed on the guide shaft.

5. The visual inspection device for solid-state electrodes according to claim 1, characterized in that: The first camera assembly is used for visual inspection of the front of the tab, and the second camera assembly is used for visual inspection of the back of the tab. The first camera assembly and the second camera assembly have the same structure. The glass platform is supported and fixed on the equipment platform. The CCD camera is fixed on the camera column. The camera column is driven to move back and forth by a longitudinal lead screw. The longitudinal lead screw is supported and fixed on the equipment platform. A coaxial light source is provided below the CCD camera. A ring light source is provided between the coaxial light source and the glass platform. A backlight source is provided below the glass platform.

6. The visual inspection device for solid-state electrodes according to claim 1, characterized in that: The first conveying assembly includes a linear module, a conveying claw base, a lifting cylinder, and a conveying claw. The conveying claw base is driven to move laterally by the linear module. The lifting cylinder is fixed on the conveying claw base, and the movable end of the lifting cylinder is connected to the conveying claw. The conveying claw is U-shaped, and both sides of the conveying claw are provided with vacuum suction cups. Each side is provided with multiple vacuum suction cups, and each side can simultaneously adsorb multiple tabs.

7. The visual inspection device for solid-state electrodes according to claim 1, characterized in that: The flipping assembly also includes a flipping column, a rotating cylinder, and a flipping disc. The rotating cylinder is fixed on the flipping column, the rotating shaft of the rotating cylinder is connected to the flipping disc, the flipping disc is connected to the flipping vacuum plate, and the placement platform is located on the right side of the flipping vacuum plate for placing the flipped tabs.

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