Image information acquisition structure and battery inspection equipment

Abstract

The invention relates to the technical field of battery detection, in particular to an image information acquisition structure and battery inspection equipment, and the acquisition structure comprises a clamping assembly and a first acquisition assembly; the clamping assembly comprises a first clamping jaw and a first moving module, the first clamping jaw is connected with the first moving module, and the first clamping jaw is used for clamping the power battery module; the first acquisition assembly comprises a rotating platform, a top surface image acquisition structure and at least one side end surface image acquisition structure, and the first moving module is used for moving the power battery module to the rotating platform; the top surface image acquisition structure is arranged above the power battery module and is used for acquiring top surface image information of the power battery module; the side end face image acquisition structure is arranged at the side end of the power battery module, the rotating platform is used for driving the power battery module to rotate along a set angle, and the side end face image acquisition structure is used for acquiring image information of the side end face of the current power battery module. The image acquisition is comprehensive, the efficiency is high, and the inspection time is within 30 seconds.

Description

Technical Field

[0001] The present invention relates to the technical field of battery detection, and particularly relates to an image information acquisition structure and a battery inspection device. Background Art

[0002] The power battery module has a certain size and weight, and in terms of its appearance, it includes a plurality of appearance surfaces. When performing appearance detection, it is necessary to inspect each surface.

[0003] Currently, the appearance inspection of power battery modules is still mainly manual, which not only has high costs but also a relatively large working intensity. In addition, the multiple surfaces of the power battery module are made of different materials and have different surface treatment structures, including many fine structures. During the inspection process, it is necessary to quickly inspect multiple defect items on each surface and in the fine structures, which requires high requirements for the inspectors and is very prone to missed inspections. Summary of the Invention

[0004] To solve at least the above technical problems existing in the prior art, the present invention provides an image information acquisition structure and a battery inspection device.

[0005] On the one hand, the present invention provides an image information acquisition structure, including a clamping component and a first acquisition component; the clamping component includes a first jaw and a first moving module, the first jaw is connected to the first moving module, and the first jaw is used to clamp the power battery module; the first acquisition component includes a rotating platform, a top surface image acquisition structure, and at least one side end surface image acquisition structure, the first moving module is used to move the power battery module to the rotating platform; the top surface image acquisition structure is arranged above the power battery module and is used to obtain the top surface image information of the power battery module; the side end surface image acquisition structure is arranged at the side end of the power battery module, the rotating platform is used to drive the power battery module to rotate at a set angle, and the side end surface image acquisition structure is used to obtain the image information of the side end surface of the power battery module currently facing it.

[0006] In some embodiments, the side end surface image acquisition structure includes a side surface image acquisition structure and an end surface image acquisition structure; when the rotating platform is in the first position, the side surface image acquisition structure and the end surface image acquisition structure are used to simultaneously obtain the first side surface image information and the first end surface image information of the power battery module, and when the rotating platform rotates a set angle to the second position, the side surface image acquisition structure and the end surface image acquisition structure are used to simultaneously obtain the second side surface image information and the second end surface image information of the power battery module.

[0007] In some embodiments, a second acquisition component is further included; the second acquisition component includes a bottom surface image acquisition structure, and the first moving module drives the power battery module to move above the bottom surface image acquisition structure, and the bottom surface image information of the power battery module is acquired through the bottom surface image acquisition structure.

[0008] In some embodiments, the rotating platform includes a tray, a carrier plate, clamping blocks, a first lifting drive structure and a rotation drive structure; the tray is connected to the carrier plate through the first lifting drive structure, and the clamping blocks are respectively arranged on both sides of the tray, and the clamping blocks are telescopic to clamp the power battery module on the tray; the first lifting drive structure is used to drive the tray and the power battery module thereon to be higher than the top end of the clamping blocks, and the rotation drive structure is connected to the side of the carrier plate away from the tray and is used to drive the carrier plate and the tray to rotate at a set angle.

[0009] In some embodiments, the top surface image acquisition structure, the bottom surface image acquisition structure, the side surface image acquisition structure and the end surface image acquisition structure include area array cameras, line scan cameras and / or 3D cameras.

[0010] On the other hand, the present invention also provides a battery inspection device, including the above image information acquisition structure.

[0011] In some embodiments, a transfer component and a blanking component are further included; the transfer component includes a tray block and a second moving module, the tray block is connected to the second moving module, the tray block is used to carry the power battery module, and is moved to the blanking station through the second moving module; the blanking component includes a second gripper and a third moving module, the second gripper is used to clamp the power battery module at the blanking station, and the third moving module is used to move the power battery module to a set position.

[0012] In some embodiments, the third moving module is used to move the power battery module to a good product station or a defective product station; the blanking component further includes a blanking transfer structure arranged at the good product station and the defective product station.

[0013] In some embodiments, the blanking transfer structure includes a material receiving lifting frame, a buffer machine, and a blanking lifting frame. At least one buffer machine is provided between the material receiving lifting frame and the blanking lifting frame. The material receiving lifting frame and the blanking lifting frame include a roller carrier and a second jacking drive structure. The telescopic part of the second jacking drive structure is connected to the bottom of the roller carrier. The buffer machine includes a top layer roller and a bottom layer roller. The second jacking drive structure is used to drive the roller carrier to be flush with the top layer roller or flush with the bottom layer roller. When the roller carrier is flush with the top layer roller, the roller carrier and the top layer roller form the blanking structure of the power battery module. When the roller carrier is flush with the bottom layer roller, the roller carrier and the bottom layer roller form the tray conveying device of the power battery module.

[0014] In some embodiments, it further includes a loading component. The loading component includes a loading carrier and a conveying structure. The surface of the loading carrier is provided with the power battery module. The conveying structure is used to drive the loading carrier to move along a set path.

[0015] For an image information acquisition structure and a battery inspection device provided by the present invention, during image information acquisition, the clamping component moves the power battery module above the bottom surface image acquisition structure to acquire the bottom surface image information of the power battery module. Subsequently, the clamping component moves the power battery module onto the rotating platform. On the rotating platform, the top surface image acquisition structure is used to obtain the top surface image information of the power battery module. As the rotating platform rotates, the side end surface image acquisition structure is used to gradually obtain the image information of the side end surface, thereby completing the comprehensive image acquisition of the power battery module.

[0016] In the technical solution of the present invention, through the cooperation of the clamping component and each acquisition component, the image acquisition of each surface of the power battery module can be automatically completed. The image acquisition is comprehensive and has higher efficiency. Among them, the battery inspection process can be controlled within 30 seconds. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features, and advantages of the exemplary embodiments of the present invention will become readily understood. In the drawings, several embodiments of the present invention are shown in an exemplary rather than restrictive manner, wherein:

[0018] In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.

[0019] Figure 1 It is a schematic diagram of the battery inspection device provided by the embodiment of the present invention;

[0020] Figure 2 It is a schematic diagram of the structure at the loading component of the battery inspection device provided by the embodiment of the present invention;

[0021] Figure 3 Side view of the loading component in the battery inspection device provided by the embodiment of the present invention;

[0022] Figure 4 Schematic structural diagram of the clamping component in the battery inspection device provided by the embodiment of the present invention;

[0023] Figure 5 Schematic structural diagram of the first acquisition component in the battery inspection device provided by the embodiment of the present invention;

[0024] Figure 6 Schematic structural diagram of the second acquisition component in the battery inspection device provided by the embodiment of the present invention;

[0025] Figure 7 Schematic structural diagram of the rotating platform in the battery inspection device provided by the embodiment of the present invention;

[0026] Figure 8 Schematic structural diagram of the transfer component in the battery inspection device provided by the embodiment of the present invention;

[0027] Figure 9 Schematic structural diagram of the unloading component in the battery inspection device provided by the embodiment of the present invention;

[0028] Figure 10 Schematic structural diagram of the material receiving lifting frame and the unloading lifting frame in the battery inspection device provided by the embodiment of the present invention.

[0029] In the figure:

[0030] 11: Loading carrier; 12: Conveyor structure; 13: Blocking cylinder; 14: Positioning photoelectric sensor; 15: Lifting device; 151: Lifting plate; 152: Pin;

[0031] 21: First jaw; 211: Fixed jaw; 212: Movable jaw; 213: Plate structure; 214: Distance measuring sensor; 22: Bottom surface image acquisition structure; 23: Rotating platform; 231: Tray; 232: Carrier plate; 233: Clamping block; 234: First lifting drive structure; 235: Rotating drive structure; 24: Top surface image acquisition structure; 25: Side surface image acquisition structure; 26: End surface image acquisition structure; 27: Tray block; 28: Second moving module;

[0032] 31: Second jaw; 32: Third moving module; 33: Material receiving lifting frame; 331: Roller carrier; 332: Second lifting drive structure; 34: Buffer machine; 35: Unloading lifting frame; 36: Acousto-optic alarm device. Detailed implementation manners

[0033] To make the objectives, features, and advantages of the present invention more obvious and understandable, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present invention.

[0034] An embodiment of the present invention provides a battery inspection device. The battery inspection device mainly includes three steps to complete the automated inspection operation, namely, the loading step, the inspection step, and the unloading step. Among them, in the loading step, an automatic loading operation of the power battery module is completed. In the inspection step, image information of each surface of the power battery module is collected. In the unloading step, a distinguishing unloading operation of good products and defective products is completed.

[0035] As Figure 1 shown, the battery inspection device includes operating stations corresponding to the loading step, the inspection step, and the unloading step, that is, the loading station, the inspection station, and the unloading station. The battery sequentially completes the corresponding inspection steps at the above three stations.

[0036] Hereinafter, with reference to the accompanying drawings, each component of the battery inspection device provided by the embodiments of the present invention, as well as the positional relationship and connection relationship between each component, will be described in detail.

[0037] As Figures 2 to 10 shown, in an embodiment of the present invention, the battery inspection device includes a loading component. The loading component is located at the loading station. On one side of the loading station is the existing production line structure. That is, after the power battery module completes the corresponding operations via the existing production line structure, it is transported to one side of the loading station. For example, an electric control cabinet for controlling the overall battery inspection device may also be provided on one side of the loading station.

[0038] The loading component includes a loading gantry gripper (not shown in the figure), a loading carrier 11, and a conveying structure 12. The loading gantry gripper is located above the loading component and the conveying structure 12. The loading gantry gripper is used to grip the power battery module transported by the production line structure and place the power battery module on the loading carrier 11. The loading gantry gripper includes a claw-shaped structure for clamping, and a driving structure for driving the claw-shaped structure to move in three-dimensional or multi-dimensional directions. In the embodiments of the present invention, the form of the driving structure is not limited.

[0039] The loading carrier 11 is used to receive the power battery module clamped by the loading gantry gripper. The conveying structure 12 includes structures such as a conveying chain or a conveyor belt. The loading carrier 11 moves on the conveying structure 12. After reaching the set position, the blocking cylinder 13 is used to block the continuous movement of the loading carrier 11. And at least two groups of positioning through-beam sensors 14 are arranged on both sides of the carrier. The positioning through-beam sensors 14 are used to judge whether the position of the power battery module on the carrier is correct. For example, if the signal of the positioning through-beam sensor 14 is cut off by the power battery module, it means that there is a power battery module, otherwise there is no power battery module, and an alarm prompt can be given.

[0040] Among them, at the position of the blocking cylinder 13, structures such as a proximity switch or a diffuse reflection photoelectric switch are also arranged to further assist in judging the position of the loading carrier 11 to achieve a more accurate blocking operation. For example, at the end of the loading carrier 11, that is, the end far from the blocking cylinder 13, a stop buckle can also be set to prevent the loading carrier 11 from moving in the reverse direction.

[0041] The loading component further includes a lifting device 15, which is arranged below the loading carrier 11. When it is determined that the loading carrier 11 reaches the loading position, the lifting device 15 rises to lift the loading carrier 11 by a certain height, such as 10 millimeters. The loading carrier 11 is separated from the conveying structure 12, and the structure at the downstream position of the loading component can perform the material taking operation. The specific material taking method is referred to the description later. For example, at the top end of the lifting device 15, there is a lifting plate 151, and protruding pins 152 are arranged on the surface of the lifting plate 151. A groove is arranged on the back side of the loading carrier 11. During the lifting operation, the pins 152 are inserted into the groove to avoid dislocation. After the material taking is completed, the lifting device 15 descends to lower the empty loading carrier 11 onto the conveying structure 12, and the conveying structure 12 reversely sends the loading carrier 11 back to the starting position. Then, the loading operation can be repeated. In the embodiment of the present invention, the lifting device 15 can be a cylinder or other precisely telescopic structures.

[0042] In the embodiment of the present invention, the battery inspection equipment includes an image information acquisition structure. The image information acquisition structure includes a clamping component, a first acquisition component, and a second acquisition component. The clamping component is used to clamp the power battery module on the loading carrier 11 in the loading component and drive the power battery module to move along a specified path. Among them, when the power battery module moves to the position of the second acquisition component, the bottom surface image information of the power battery module is acquired. When the power battery module moves to the position of the first acquisition component, the top surface image information and the side end surface image information of the power battery module are acquired, and the image acquisition of the power battery module is completed automatically.

[0043] Continue to refer to Figures 2 to 10As shown, the clamping assembly includes a first jaw 21 and a first moving module (not shown in the figure). The first jaw 21 is connected to the first moving module. The first jaw 21 is used to pick up the power battery module on the loading carrier 11 in the loading component. The first moving module drives the first jaw 21 to move above the loading carrier 11. Then, the first moving module drives the first jaw 21 to descend. The first jaw 21 completes the picking up of the power battery module. Then, the first moving module drives it to rise and reset, and then moves to the next station through the first moving module.

[0044] The first jaw 21 includes a fixed jaw 211 and a moving jaw 212. The moving jaw 212 is driven by a telescopic structure, such as a telescopic cylinder or a lead screw assembly, etc. The moving jaw 212 moves towards the fixed jaw 211 to complete the picking up action. The moving jaw 212 moves away from the fixed jaw 211 to complete the putting down action. Among them, a soft rubber material is provided on the fixed jaw 211 and the moving jaw 212. During the picking up process, it can avoid scratching the product. Or, air grooves are added to increase the clamping friction and prevent the vacuum from adhering to the product.

[0045] The first jaw 21 includes a plate structure 213. The fixed jaw 211 is arranged below the plate structure 213. The plate structure 213 is provided with a strip hole. The moving jaw 212 passes through the strip hole and is partially located below the plate structure 213. The telescopic structure is located above the plate structure 213. Among them, a bellows can be provided on the strip hole. The bellows can block the strip hole to prevent objects such as top screws from falling.

[0046] For example, a distance measuring sensor 214 is arranged between the fixed jaw 211 and the moving jaw 212. Before the first jaw 21 operates, the distance measuring sensor 214 is used to detect whether there is a product on the loading carrier 11 and whether the product is too high, and further judge whether the picking up condition is met.

[0047] The first moving module is connected to the plate structure 213. For example, the first moving module includes three linear lead screw assemblies. The plate structure 213 is driven to move in three-dimensional directions through the three linear lead screw assemblies. Or, the first moving module can also be other driving forms, such as using a multi-axis robotic arm, etc.

[0048] A second acquisition component is included in the moving path of the clamping assembly. The second acquisition component includes a bottom surface image acquisition structure 22. The first moving module drives the power battery module to move above the bottom surface image acquisition structure 22, and the bottom surface image information of the power battery module is acquired through the bottom surface image acquisition structure 22.

[0049] Among them, when collecting the bottom surface image information, the first moving module descends towards the second collecting component, so that the height of the power battery module meets the image collection requirements. For example, the bottom surface image collection structure 22 includes a double-sided array camera, a line scan camera, and a moving module. For example, the moving module includes a slide rail arranged along the length direction of the power battery module, a moving slider is arranged on the slide rail, and the slider is driven by a power device such as a driving chain. The double-sided array camera and the line scan camera are installed on the slider through brackets, and the double-sided array camera and the line scan camera move synchronously with the slider and the brackets, so as to complete the material of the bottom surface image information of the power battery module.

[0050] For example, a manual adjustment frame is arranged on the bracket, and the positions of the double-sided array camera and the line scan camera on the bracket are locally adjusted through the manual adjustment frame to meet the bottom surface image information collection of the current or more types of power battery modules. For example, scales such as a scale and / or an arc scale are configured on the manual adjustment bracket, which is beneficial to the accuracy of the adjustment operation.

[0051] After the bottom surface image information of the power battery module is collected, the power battery module is moved to the first collecting component by the first moving module, and the image information of the side surface and the end surface of the power battery module is collected at the first collecting component.

[0052] In the embodiment of the present invention, the first collecting component includes a rotating platform 23, a top surface image collection structure 24, and at least one side-end surface image collection structure. The first moving module is used to move the power battery module to the rotating platform 23; that is, after the first moving module places the power battery module on the rotating platform 23, the first moving module withdraws and can be used for the feeding and bottom surface image information collection operations of the next power battery module to be detected.

[0053] At the rotating platform 23 station, the top surface image collection structure 24 is arranged above the power battery module and is used to obtain the top surface image information of the power battery module; the side-end surface image collection structure is arranged at the side end of the power battery module. The rotating platform 23 is used to drive the power battery module to rotate at a set angle, and the side-end surface image collection structure is used to obtain the image information of the side-end surface of the power battery module currently facing.

[0054] The top surface image collection structure 24 includes a three-dimensional moving module. For example, the three-dimensional moving module is a linear lead screw module or a multi-axis robotic arm and other structures. The three-dimensional moving module is connected to the line scan camera and the area array camera, and drives the line scan camera and the area array camera to move above the power battery module through the three-dimensional moving module. When collecting the top surface image information, the three-dimensional moving module descends to make the line scan camera and the area array camera within the collection range, and then drives the line scan camera and the area array camera to move along a set path to complete the image collection operation.

[0055] When the rotating platform 23 is in the non-rotating state, the side-end face image acquisition structure acquires the image information of the side end face of the power battery module currently facing. Taking the power battery module as a cuboid as an example, it includes two end faces and two side faces. The side-end face image acquisition structure includes the side face image acquisition structure 25 and the end face image acquisition structure 26. When the rotating platform 23 is in the first position (the position where it is located when not rotating), the side face image acquisition structure 25 and the end face image acquisition structure 26 are used to simultaneously obtain the first side face image information and the first end face image information of the power battery module. When the rotating platform 23 rotates by a set angle (rotates 180°) to the second position, the side face image acquisition structure 25 and the end face image acquisition structure 26 are used to simultaneously obtain the second side face image information and the second end face image information of the power battery module.

[0056] At one station of the rotating platform 23, by using two sets of image acquisition structures, all the image information can be obtained. For example, the side face image acquisition structure 25 includes a three-dimensional movement module. For example, the three-dimensional movement module is a linear lead screw module or a multi-axis robotic arm and other structures. The three-dimensional movement module is connected to a line scan camera. By driving the line scan camera to move along a set path through the three-dimensional movement module, the side face image information of the currently facing side can be collected, that is, the first side face image information. After one collection is completed, the line scan camera is reset under the drive of the three-dimensional movement module. After the rotating platform 23 rotates 180°, the second side face image information is collected through the three-dimensional movement module and the line scan camera to obtain the second side face image information. Similarly, the end face image acquisition structure 26 includes a three-dimensional movement module and a area array camera. Before the rotating platform 23 rotates, the first end face image information of the power battery module is obtained. After the rotating platform 23 rotates, the second end face image information of the power battery module is obtained.

[0057] For example, the side face image acquisition structure 25 further includes a 3D camera. When collecting the side face image information, the image information of the side face can be synchronously collected through the 3D camera.

[0058] For example, the rotating platform 23 includes a tray 231, a carrier plate 232, a clamping block 233, a first lifting drive structure 234, and a rotation drive structure 235. The tray 231 is connected to the carrier plate 232 through the first lifting drive structure 234. Clamping blocks 233 are respectively arranged on both sides of the tray 231. The clamping blocks 233 are telescopic for clamping the power battery module on the tray 231. The telescopic operation of the clamping blocks 233 is completed by the drive of a cylinder. Each clamping block 233 is connected to an independent cylinder, and the corresponding actions of the clamping blocks 233 are completed by moving towards or away from each other. The first lifting drive structure 234 is used to drive the tray 231 and the power battery module thereon to be higher than the top of the clamping blocks 233. The rotation drive structure 235 is connected to the side of the carrier plate 232 away from the tray 231 and is used to drive the carrier plate 232 and the tray 231 to rotate by a set angle.

[0059] For example, a sensor for sensing materials is further provided on one side of the tray 231. Whether there are materials on the clamping block 233 is judged through the sensor, so as to further determine whether to start subsequent operation steps.

[0060] When the rotating platform 23 needs to rotate, the driving structure 235 drives the carrier plate 232 to drive the tray 231 to rotate synchronously. For example, the rotating driving structure 235 is a stepping motor, which cooperates with the gearbox structure to drive the carrier plate 232 to rotate. After the power battery module completes all image information acquisition on the rotating platform 23, it needs to be moved to the blanking station, and the acquired image information is analyzed by an analysis system. For example, methods such as edge detection, region growing method, and contrast analysis method are used. In the embodiments of the present invention, the analysis method is not limited. The method for moving the power battery module to the blanking station is as follows: The moving operation is performed through the transfer assembly. Among them, in the rotating platform 23, the first lifting driving structure 234 cooperates with the transfer assembly to complete the moving operation of the power battery module. The specific operation method is as follows:

[0061] The transfer assembly includes a tray block 27 and a second moving module 28. The tray block 27 is connected to the second moving module 28. The tray block 27 is used to carry the power battery module and is moved to the blanking station through the second moving module 28; before the transfer assembly is used, it is necessary to raise the tray 231 and the power battery module thereon above the top of the clamping block 233 through the first lifting driving structure 234. Subsequently, the tray block 27 moves to the lower part of the power battery module, and the first lifting driving structure 234 (such as a lifting cylinder) descends. The two ends of the power battery module are respectively placed on the tray block 27, and under the drive of the second moving module 28, the power battery module is moved to the blanking station. For example, the second moving module 28 includes a slide rail, and a movable slider is arranged on the slide rail. The transfer assembly is arranged on the slider, and the slider is driven to move through a driving structure such as a driving chain or a lead screw.

[0062] For example, a sensor for sensing whether the power battery module deviates is provided on the tray block 27. Whether the position of the power battery module carried by the transfer assembly is correct is judged through the sensor.

[0063] Continue to refer to Figures 2 to 10 As shown, the blanking assembly of the battery inspection equipment includes a second jaw 31 and a third moving module 32. The second jaw 31 is used to clamp the power battery module at the blanking station, and the third moving module 32 is used to move the power battery module to a set position.

[0064] Driven by the third moving module 32, the second gripper 31 moves among multiple workstations. For example, the structure of the second gripper 31 is the same as that of the first gripper 21, and it can complete the actions of gripping and releasing. The third moving module 32 is a three-dimensional moving module (such as a linear screw module) or a multi-axis robotic arm, etc. During the blanking operation, after obtaining the detection result of the current power battery module, the second gripper 31 and the third moving module 32 can move the power battery module to the corresponding workstation according to the detection result.

[0065] The detection results of the power battery detection module include two types: qualified products and unqualified products. For the convenience of unified management of products, the qualified products and unqualified products can be classified for blanking. The third moving module 32 is used to move the power battery module to the qualified product workstation or the unqualified product workstation; the blanking assembly further includes blanking transfer structures arranged at the qualified product workstation and the unqualified product workstation.

[0066] At the qualified product workstation and the unqualified product workstation, operations such as receiving materials (receiving the blanked materials), buffering, and blanking can be respectively completed, and the above functions are completed by the blanking structure 12.

[0067] For example, the blanking transfer structure includes a material receiving lifting frame 33, a buffer 34, and a blanking lifting frame 35. There is at least one buffer 34 between the material receiving lifting frame 33 and the blanking lifting frame 35; the material receiving lifting frame and the blanking lifting frame 35 include a roller carrier 331 and a second lifting drive structure 332. The telescopic part of the second lifting drive structure 332 is connected to the bottom of the roller carrier 331. The buffer 34 includes a top layer roller and a bottom layer roller. The second lifting drive structure 332 is used to drive the roller carrier 331 to be flush with the top layer roller or flush with the bottom layer roller; when the roller carrier 331 is flush with the top layer roller, the roller carrier 331 and the top layer roller form a blanking structure for the power battery module. When the roller carrier 331 is flush with the bottom layer roller, the roller carrier 331 and the bottom layer roller form a conveying device for the tray 231 of the power battery module.

[0068] Through the material receiving lifting frame 33, the buffer 34, and the blanking lifting frame 35, the cyclic conveying of the carrier of the power battery module can be realized. That is, after the carrier receives materials on the material receiving lifting frame 33 (the roller carrier 331 is lifted by the second lifting drive structure 332), the rollers of the roller carrier 331 rotate, and the carrier is conveyed to the top layer roller of the buffer 34, and then conveyed to the roller carrier 331 of the blanking lifting frame 35. At the blanking lifting frame 35, manual or robotic blanking operations are performed. After blanking, the empty carrier descends through the second lifting drive structure 332 and then returns to the roller carrier 331 of the material receiving lifting frame 33 via the bottom layer roller. Such a cycle can realize the cyclic blanking operation of the power battery module.

[0069] For example, the second lifting drive structure 332 is a telescopic cylinder structure. Or, for example, a sensing element such as a sensor for sensing materials is provided on the drum stage 331 to determine the incoming material state of the current material. For example, the sensing element is an infrared sensor, a photoelectric sensor, etc. And an audible and visual alarm device 36 is provided at the blanking lifting frame 35. When the power battery module at the blanking lifting frame 35 is not taken away in time, an audible and visual alarm signal can be emitted to play a reminder role.

[0070] An image information acquisition structure and a battery inspection device provided by the present invention. When acquiring image information, the clamping assembly moves the power battery module above the bottom surface image acquisition structure 22 to acquire the bottom surface image information of the power battery module. Subsequently, the clamping assembly moves the power battery module onto the rotating platform 23. On the rotating platform 23, the top surface image information of the power battery module is obtained through the top surface image acquisition structure 24. As the rotating platform 23 rotates, the side end surface image information is gradually obtained through the side end surface image acquisition structure, thereby completing the comprehensive image acquisition of the power battery module.

[0071] In the technical solution of the present invention, through the cooperation of the clamping assembly and each acquisition assembly, the image acquisition of each surface of the power battery module can be automatically completed. The image acquisition is comprehensive and has higher efficiency. Among them, the battery inspection process can be controlled within 30 seconds.

[0072] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0073] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0074] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, and all should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. An image information acquisition structure, characterized in that It includes a clamping assembly and a first acquisition assembly; The clamping assembly includes a first jaw (21) and a first moving module. The first jaw (21) is connected to the first moving module, and the first jaw (21) is used to clamp the power battery module; The first acquisition assembly includes a rotating platform (23), a top surface image acquisition structure (24) and at least one side end surface image acquisition structure. The first moving module is used to move the power battery module to the rotating platform (23); The top surface image acquisition structure (24) is arranged above the power battery module and is used to obtain the top surface image information of the power battery module; the side end surface image acquisition structure is arranged at the side end of the power battery module. The rotating platform (23) is used to drive the power battery module to rotate at a set angle, and the side end surface image acquisition structure is used to obtain the image information of the side end surface of the power battery module facing it currently.

2. The image information acquisition structure according to claim 1, characterized in that The side end surface image acquisition structure includes a side surface image acquisition structure (25) and an end surface image acquisition structure (26); When the rotating platform (23) is in the first position, the side surface image acquisition structure (25) and the end surface image acquisition structure (26) are used to simultaneously obtain the first side surface image information and the first end surface image information of the power battery module. When the rotating platform (23) rotates a set angle to the second position, the side surface image acquisition structure (25) and the end surface image acquisition structure (26) are used to simultaneously obtain the second side surface image information and the second end surface image information of the power battery module.

3. The image information acquisition structure according to claim 2, wherein It further includes a second acquisition assembly; The second acquisition assembly includes a bottom surface image acquisition structure (22). The first moving module drives the power battery module to move above the bottom surface image acquisition structure (22), and the bottom surface image information of the power battery module is acquired through the bottom surface image acquisition structure (22).

4. The image information acquisition structure according to claim 2, wherein The rotating platform (23) includes a tray (231), a carrier plate (232), a clamping block (233), a first lifting drive structure (234) and a rotation drive structure (235); The tray (231) is connected to the carrier plate (232) through the first lifting drive structure (234). Clamping blocks (233) are respectively arranged on both sides of the tray (231). The clamping blocks (233) can be telescoped to clamp the power battery module on the tray (231); The first lifting drive structure (234) is used to drive the tray (231) and the power battery module thereon to be higher than the top end of the clamping block (233). The rotation drive structure (235) is connected to the side of the carrier plate (232) away from the tray (231) and is used to drive the carrier plate (232) and the tray (231) to rotate at a set angle.

5. The image information acquisition structure according to claim 3, characterized in that, The top surface image acquisition structure (24), the bottom surface image acquisition structure (22), the side surface image acquisition structure (25) and the end surface image acquisition structure (26) include area array cameras, line scan cameras and / or 3D cameras.

6. A battery inspection device, characterized in that, It includes an image information acquisition structure as described in any one of claims 1 to 5.

7. The battery inspection device according to claim 6, characterized in that, It further includes a transfer component and a blanking component; The transfer component includes a tray block (27) and a second moving module (28). The tray block (27) is connected to the second moving module (28). The tray block (27) is used to carry the power battery module and is moved to the blanking station through the second moving module (28); The blanking component includes a second gripper (31) and a third moving module (32). The second gripper (31) is used to grip the power battery module at the blanking station, and the third moving module (32) is used to move the power battery module to a set position.

8. The battery inspection device according to claim 7, characterized in that, The third moving module (32) is used to move the power battery module to a good product station or a defective product station; The blanking component further includes a blanking transfer structure provided at the good product station and the defective product station.

9. The battery inspection device according to claim 8, wherein, The blanking transfer structure includes a receiving lifting frame (33), a buffer (34), and a blanking lifting frame (35). At least one buffer (34) is provided between the receiving lifting frame (33) and the blanking lifting frame (35); The receiving lifting frame (33) and the blanking lifting frame (35) include a roller carrier (331) and a second jacking drive structure (332). The telescopic part of the second jacking drive structure (332) is connected to the bottom of the roller carrier (331). The buffer (34) includes a top layer roller and a bottom layer roller. The second jacking drive structure (332) is used to drive the roller carrier (331) to be flush with the top layer roller or flush with the bottom layer roller; When the roller carrier (331) is flush with the top layer roller, the roller carrier (331) and the top layer roller form a blanking structure for the power battery module. When the roller carrier (331) is flush with the bottom layer roller, the roller carrier (331) and the bottom layer roller form a conveying device for the tray (231) of the power battery module.

10. The battery inspection device according to claim 6, characterized in that, It further includes a loading component. The loading component includes a loading carrier (11) and a conveying structure (12); The surface of the loading carrier (11) is provided with the power battery module, and the conveying structure (12) is used to drive the loading carrier (11) to move along a set path.

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