Automatic battery detection and grading device

Abstract

The application provides a battery automatic detection and grading device, which comprises a device shell, an installation base plate arranged in the device shell, a detection assembly arranged on one side of the installation base plate, a feeding station, a discharging station, a plurality of grading stations and a multi-axis mechanical hand on the installation base plate, wherein the plurality of grading stations are respectively used for placing material trays for storing batteries of different specifications which have been detected; the multi-axis mechanical hand is used for grabbing undetected batteries on the feeding station, placing the batteries into the detection assembly for detection, and placing the batteries into corresponding grading stations after the detection is completed; a plurality of material moving mechanisms are arranged in the device shell, and each material moving mechanism comprises a conveying unit and a material taking unit; a material tray moving mechanism is arranged in the shell and is used for transferring the material tray in the grading station to the discharging station. The device provided by the application can realize the full-process automation of battery detection and grading, greatly improve the battery detection and grading efficiency, reduce the labor cost, avoid the manual operation error, and guarantee the grading accuracy.

Description

Technical Field

[0001] This disclosure generally relates to the field of battery testing technology, and specifically to an automatic battery testing and grading device. Background Technology

[0002] In the battery manufacturing process, testing and grading are crucial steps to ensure battery quality and suitability for subsequent use. This step involves testing key performance parameters such as voltage, capacity, and internal resistance. Based on the test results, batteries of different specifications and meeting performance standards are classified into corresponding grades. This ensures that when batteries are assembled into battery packs, the performance of each battery is matched, avoiding the impact of individual battery performance differences on the overall battery pack's efficiency and lifespan. Therefore, the accuracy and efficiency of battery testing and grading are critical to the battery production process.

[0003] Currently, battery testing and grading operations mostly rely on manual labor or semi-automated equipment. Manual operation requires workers to manually feed untested batteries to the testing equipment, and then manually sort and place them into their corresponding trays after testing. This is not only time-consuming and labor-intensive, but also prone to errors due to human negligence. While semi-automated equipment can partially replace manual testing, manual assistance is still required for tray loading and unloading, and tray transfer after testing. The overall process lacks continuity and has a low degree of automation, making it difficult to meet the efficiency and accuracy requirements of large-scale battery production. Furthermore, the manual intervention still carries the risk of error, affecting the quality of battery grading. Summary of the Invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide an automatic battery detection and grading device to solve the above problems.

[0005] This application provides an automatic battery detection and grading device, comprising: The device has a housing, inside which is a mounting base. A detection component is provided on one side of the mounting base. The mounting base has a loading station, a unloading station, multiple sorting stations, and a multi-axis robot. The multiple sorting stations are used to place trays containing batteries of different specifications that have been tested. The multi-axis robot is used to pick up untested batteries from the loading station, place them into the detection component for testing, and place them into the corresponding sorting station after testing. Multiple material transfer mechanisms are arranged inside the housing of the device. Each material transfer mechanism includes a conveying unit and a picking unit. The conveying unit is used to receive externally input material racks and convey them to the picking unit, or to convey material racks at the position of the conveying unit to the outside. The picking unit is used to remove trays containing untested batteries from the material racks and transfer them to the loading station, or to place trays containing tested batteries from the unloading station into the material racks. A tray transfer mechanism, which is mounted inside the housing, is used to transfer the trays from the grading station to the unloading station.

[0006] According to the technical solution provided in the embodiments of this application, a first opening for material inlet and outlet is provided on one side of the device housing; the conveying unit includes: A support plate is installed corresponding to the first opening position. A pair of first conveyor belts for conveying the material rack are installed on the support plate. The conveying direction of the first conveyor belts is a first direction, which is parallel to the mounting base plate. A first guide plate is provided on the side of the pair of first conveyor belts that are far away from each other. The first guide plate extends along the first direction and has a limiting protrusion at the end away from the material picking unit.

[0007] According to the technical solution provided in the embodiments of this application, the material handling unit includes a telescopic component and a lifting component. The lifting component includes a support frame that can be raised and lowered along a second direction. A pair of second conveyor belts are provided on the support frame. The conveying direction of the second conveyor belts is the first direction. When the support frame is raised and lowered to a set height, it docks with the first conveyor belt. The second direction is perpendicular to the mounting base plate. The telescopic component includes a tray handle that can be extended and lowered along the first direction, used to transfer the tray from the tray on the support frame to the loading station, or to transfer the tray from the unloading station to the support frame.

[0008] According to the technical solution provided in the embodiments of this application, the disk transfer mechanism includes a driving component and a gripping component, wherein the driving component is used to drive the gripping component to move in multiple directions; the gripping component includes: A mounting plate is provided, on which four grippers are slidably mounted. Each gripper is provided with a corresponding drive wheel. The drive wheels are rotatably mounted on the mounting plate, and the four drive wheels are connected by a synchronous belt. A toothed plate is provided on the outer side of the synchronous belt, and the grippers are provided with teeth corresponding to the toothed plate. The toothed plate meshes with the teeth on the grippers so that the synchronous belt drives the four grippers to move closer or further away from each other synchronously. A gripper drive device is mounted on the mounting plate and is drive-connected to one of the drive wheels.

[0009] According to the technical solution provided in the embodiments of this application, a barcode scanning mechanism is provided on the side of the loading station near the detection component. The barcode scanning mechanism is used for information identification of the battery picked up by the multi-axis robot at the loading station.

[0010] According to the technical solution provided in the embodiments of this application, the loading station, unloading station and multiple graded stations are all provided with positioning components, which are used to position the material trays placed on the stations.

[0011] According to the technical solution provided in the embodiments of this application, a laser sensor is provided on the first guide plate to detect whether the material rack is placed on the first conveyor belt.

[0012] According to the technical solution provided in the embodiments of this application, an empty tray temporary storage station is provided on the side of the feeding station near the multiple sorting stations. The empty tray temporary storage station is used to temporarily store the empty trays after the undetected batteries at the feeding station have been removed.

[0013] According to the technical solution provided in the embodiments of this application, at least one full-tray temporary storage station is provided on one side of the unloading station, and the full-tray temporary storage station is used to temporarily store the trays filled with tested batteries.

[0014] According to the technical solution provided in the embodiments of this application, the support plate is provided with a plurality of blocking drive devices on the side near the material picking unit, and the output end of the blocking drive device is retractable along the second direction and connected to a blocking pin.

[0015] Compared with the prior art, the beneficial effects of this application are as follows: By integrating a loading station, unloading station, multi-group grading station, and multi-axis robot arm into the substrate installed inside the device housing, and with the detection components, the multi-axis robot arm can automatically complete the picking of untested batteries, delivery for inspection, and placement of the corresponding grading station after inspection, without the need for manual intervention in the inspection and grading process; at the same time, multiple material transfer mechanisms can automatically realize the external material rack conveying and the transfer of material trays between the material rack and the loading and unloading stations. The tray transfer mechanism can automatically move the material trays from the grading station to the unloading station, thus realizing the full automation of the battery inspection and grading process, greatly improving the efficiency of battery inspection and grading, reducing labor costs, avoiding human operation errors, and ensuring the accuracy of grading. Attached Figure Description

[0016] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 A schematic diagram of the automatic battery detection and grading device provided in this application; Figure 2 for Figure 1 The diagram shows the internal structure of the automatic battery detection and grading device. Figure 3 for Figure 2 A top view of the structure shown; Figure 4 This is a schematic diagram of the material transfer mechanism; Figure 5 This is a structural schematic diagram of the telescopic component; Figure 6 This is a structural diagram of the positioning component; Figure 7 This is a schematic diagram of the material transfer mechanism; Figure 8 This is a structural diagram of the grabbing component; Figure 9 This is a schematic diagram showing the relative positions of the timing belt and the drive wheel.

[0017] Reference numerals: 1. Device housing; 2. Mounting base plate; 3. Detection component; 4. Loading station; 5. Unloading station; 6. Segmentation station; 7. Tray; 8. Material rack; 9. Transfer mechanism; 10. First opening; 11. Support plate; 12. First conveyor belt; 13. First guide plate; 14. Limiting protrusion; 15. Support frame; 16. Second conveyor belt; 17. Tray handle; 18. Mounting plate; 19. Gripper; 20. Drive wheel; 21. Synchronous belt; 22. Gripper drive device; 23. Barcode scanning mechanism; 24. Laser sensor; 25. Empty tray temporary storage station; 26. Full tray temporary storage station; 27. Blocking drive device; 28. Blocking pin; 29. 30. First slide rail; 31. First slider; 32. Support plate; 33. Positioning seat; 34. Limiting seat; 35. Propulsion motor; 36. Transmission screw; 37. Second slide rail; 38. Second slider; 39. Third slide rail; 40. X-axis motor; 41. Third slider; 42. Fourth slide rail; 43. Y-axis motor; 44. Fourth slider; 45. Lifting frame; 46. Z-axis cylinder; 47. Guide sleeve; 48. Guide rod; 49. Positioning plate; 50. Positioning baffle; 51. Guide column; 52. Lifting drive device; 53. Lifting rod; 54. First movable plate; 55. First cylinder; 56. Second movable plate; 57. Compensation station. Detailed Implementation

[0018] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] Please refer to Figures 1-9 This application provides an automatic battery detection and grading device, comprising: The device includes a housing 1, inside which is a mounting base 2. A detection component 3 is provided on one side of the mounting base 2. The mounting base 2 is equipped with a loading station 4, a unloading station 5, multiple sorting stations 6, and a multi-axis robot. The multiple sorting stations 6 are used to place trays 7 containing batteries of different specifications that have been tested. The multi-axis robot is used to pick up untested batteries from the loading station 4 and place them into the detection component 3 for testing, and after testing, place them into the corresponding sorting station 6. Multiple material transfer mechanisms 9 are arranged inside the device housing 1. Each material transfer mechanism 9 includes a conveying unit and a picking unit. The conveying unit is used to receive externally input material racks 8 and convey them to the picking unit, or to convey the material racks 8 at the position of the conveying unit to the outside. The picking unit is used to remove the trays 7 containing untested batteries from the material racks 8 and transfer them to the loading station 4, or to place the trays 7 containing tested batteries from the unloading station 5 into the material racks 8. A transfer mechanism, which is installed inside the housing, is used to transfer the material tray 7 of the grading station 6 to the unloading station 5.

[0021] Specifically, this application provides an automatic battery testing and grading device. The device uses a housing 1 as its external protection and structural support, effectively isolating internal components from dust and impurities in the external environment, while providing stable installation and operating space for each functional component. A mounting base 2 is fixedly installed inside the housing 1, and the mounting base 2 is placed horizontally. A testing component 3 is assembled on one side of the mounting base 2. This testing component 3 integrates various sensors and testing modules required for battery performance testing, used to detect the performance parameters of each phase of the battery, providing accurate data for subsequent battery grading. The specific sensors and testing modules involved in the testing component 3 are not described here, as they are all prior art. In the main area of ​​the mounting base 2, a loading station 4, a unloading station 5, and multiple grading stations 6 are systematically divided and arranged according to functional requirements, and a multi-axis robotic arm is also provided. Among them, the loading station 4 is specifically used to place the trays 7 containing untested batteries, providing a stable supply of raw materials for the subsequent testing process; the unloading station 5 is used to receive the trays 7 containing tested and graded batteries, facilitating subsequent unified transfer; the multiple grading stations 6 are divided according to the different specifications and performance levels determined after battery testing, with each grading station 6 corresponding to a tray 7 containing a specific specification of tested batteries, realizing the classified storage of batteries of different grades.

[0022] The multi-axis robot arm achieves flexible multi-dimensional movement through a precise drive and control system. Its hand is equipped with a gripping structure adapted for battery grasping, enabling it to stably grasp untested batteries from the material tray 7 at loading station 4 and accurately transfer them to the testing station of the testing component 3. After the testing component 3 completes the testing of the battery's performance parameters, the multi-axis robot arm accurately transfers the battery to the corresponding sorting station 6's material tray 7 based on the test results, completing the automated operation process of a single battery from grasping, testing, and sorting. The multi-axis robot arm is mounted on the mounting base plate 2 and positioned in the area between loading station 4, testing component 3, and sorting station 6. The structure of the multi-axis robot arm is existing technology and will not be described in detail here, nor is it shown in the attached drawings.

[0023] Inside the outer casing 1 of the device, multiple material transfer mechanisms 9 are neatly arranged along a preset layout direction. These material transfer mechanisms 9 cooperate with the loading station 4 and the unloading station 5 to complete the automated transfer of material trays 7 and racks 8. Each material transfer mechanism 9 consists of two parts: a conveying unit and a picking unit. The core function of the conveying unit is to realize the transfer docking between the external racks 8 and the inside of the device. When it is necessary to add untested batteries into the device, the conveying unit can receive the racks 8 containing untested battery trays 7 transported from the outside and stably transport the racks 8 to the corresponding docking position of the picking unit. When the tested battery trays 7 inside the device need to be transferred outward, the conveying unit can accurately transport the racks 8 containing tested battery trays 7 located on its own transmission path to the outside of the device, realizing bidirectional automated transfer of racks 8. The material handling unit serves as an intermediate transfer structure connecting the conveying unit with the loading station 4 and unloading station 5. It is equipped with precise positioning and gripping components. When the conveying unit transports the rack 8 containing the untested battery trays 7 to the docking position, the material handling unit can accurately remove the untested battery trays 7 from the rack 8 and smoothly transfer the trays 7 to the loading station 4 on the mounting base plate 2, ensuring that the loading station 4 always has sufficient batteries to be tested. Conversely, when the unloading station 5 has tested battery trays 7, the material handling unit can also remove these trays 7 from the unloading station 5 and accurately place them into the rack 8 on the conveying unit, preparing for the rack 8 to transfer the tested battery trays 7 outward.

[0024] Inside the outer casing 1 of the device, a tray-shifting mechanism is also installed. This mechanism is fixedly mounted on a predetermined position on the top or side of the outer casing 1 via a bracket, and its coverage area can encompass all workstations on the mounting base. The tray-shifting mechanism has multi-directional movement capabilities and can be precisely moved to the sorting workstation 6 containing the tested batteries under the command of the control system. It stably grasps the tray 7 on the sorting workstation 6 using its own gripping structure, and then smoothly transfers the tray 7 to the unloading workstation 5, completing the automated transfer of the tray 7 between the sorting workstation 6 and the unloading workstation 5. This achieves automated connection of the entire battery testing and sorting process, greatly improving overall work efficiency.

[0025] Furthermore, the outer casing 1 of the device is provided with a first opening 10 for feeding and discharging materials on one side; the conveying unit includes: A support plate 11 is installed corresponding to the first opening 10. A pair of first conveyor belts 12 for conveying the material rack 8 are installed on the support plate 11. The conveying direction of the first conveyor belts 12 is a first direction, which is parallel to the mounting base plate 2. A first guide plate 13 is provided on the side of the pair of first conveyor belts 12 that is far away from each other. The first guide plate 13 extends along the first direction and a limiting protrusion 14 is provided at the end that is far away from the material picking unit.

[0026] Specifically, in order to facilitate the loading and unloading of the material rack 8 with the outside, this embodiment provides a first opening 10 on one side wall of the device housing 1 for the material rack 8 to enter and exit. The size of the first opening 10 is adapted to the number of material transfer mechanisms 9, which can ensure that the material rack 8 can smoothly enter and exit the device, reduce the amount of dust and debris in the external environment entering the device through the opening, and provide a clear docking channel for the conveying unit to transfer the material rack 8 to the outside, so that the external material rack 8 can accurately enter the device along the preset path or be smoothly moved out of the device.

[0027] For the conveying unit in the material transfer mechanism 9, its core structure includes a support plate 11. The support plate 11 is fixedly installed inside the device housing 1 at a position corresponding to the first opening 10, and the top surface of the support plate 11 is flush with or at a predetermined height difference from the bottom edge of the first opening 10, ensuring that the material rack 8 can smoothly transition onto the support plate 11 when entering or exiting the first opening 10. On the top surface of the support plate 11, a pair of first conveyor belts 12 are installed in parallel. The pair of first conveyor belts 12 are symmetrically distributed on both sides of the top surface of the support plate 11, and their conveying direction is a first direction, which is parallel to the surface of the mounting base plate 2; the first conveyor belts 12 are driven by a motor.

[0028] To further ensure the stability of the material rack 8 during transmission on the first conveyor belt 12, a first guide plate 13 is vertically fixed on each side of the pair of first conveyor belts 12 that are far apart from each other. The first guide plate 13 extends along the entire length of the first direction, and the distance between the two first guide plates 13 matches the width of the material rack 8, forming a limiting and guiding structure on both sides of the material rack 8. This prevents the material rack 8 from shifting to either side due to vibration or external interference during transmission, ensuring that the material rack 8 always moves along the preset transmission path. At the same time, a limiting protrusion 14 is also fixedly installed at the end of the first guide plate 13 away from the material picking unit, i.e., the outer end of the first conveyor belt 12. The limiting protrusion 14 can form a block at the end of the conveyor belt, preventing the material rack 8 from moving excessively due to inertia and exceeding the preset transmission range of the first conveyor belt 12 during material unloading.

[0029] Furthermore, the material handling unit includes a telescopic component and a lifting component. The lifting component includes a support frame 15 that can be raised and lowered along a second direction. The support frame 15 is provided with a pair of second conveyor belts 16. The conveying direction of the second conveyor belts 16 is the first direction. When the support frame 15 is raised and lowered to a set height, it docks with the first conveyor belt 12. The second direction is perpendicular to the mounting base plate 2. The telescopic component includes a tray handle 17 that can be extended and lowered along the first direction, used to transfer the tray 7 from the tray 8 on the support frame 15 to the loading station 4, or to transfer the tray 7 from the unloading station 5 to the support frame 15.

[0030] Specifically, the support frame 15 is raised and lowered in the second direction through the cooperation of the first slide rail 29 and the first slider 30, that is, the height is adjusted in the vertical direction. The first slide rail 29 is fixedly installed on the support frame inside the device housing 1. The first slide rail 29 is arranged in the vertical direction. A drive motor is provided at the top of the first slide rail 29. The first slider 30 is slidably installed on the first slide rail 29 and is connected to the drive motor at the end of the first slide rail 29. The support frame 15 is installed on the first slider, and the drive motor controls the raising and lowering of the support frame 15.

[0031] A pair of second conveyor belts 16 are installed parallel to each other along the first direction on the top of the support frame 15. The conveying direction of the second conveyor belts 16 is consistent with the conveying direction of the first conveyor belt 12 in the conveying unit, and the bandwidth and spacing of the second conveyor belts 16 are adapted to the first conveyor belt 12. When the support frame 15 is raised or lowered to a set height, the top surface of the second conveyor belt 16 can be flush with the top surface of the first conveyor belt 12, forming a seamless conveying channel. At this time, the material rack 8 can be smoothly moved onto the second conveyor belt 16 of the support frame 15 under the drive of the first conveyor belt 12, or moved back onto the first conveyor belt 12 from the second conveyor belt 16, realizing the smooth transfer of the material rack 8 between the conveying unit and the picking unit.

[0032] The telescopic assembly is a horizontal transfer structure for the material handling unit. In addition to the material tray handle 17, it also includes a support plate 31. The support plate 31 is a long strip-shaped flat plate structure, horizontally installed on the mounting base plate 2, and its extension direction is the first direction. The support plate 31 has a positioning seat 32 at one end away from the lifting assembly and a limiting seat 33 at the other end. A propulsion motor 34 is installed on the positioning seat 32. The output shaft of the propulsion motor 34 is connected to one end of the transmission screw 35 through a coupling. The transmission screw 35 extends along the first direction and its other end is connected to the limiting seat 33 through a bearing sleeve. A second slide rail 36 is laid on the top surface of the support plate 31 along the first direction. A second slider 37 is slidably mounted on the second slide rail 36. The second slider 37 is sleeved on the transmission screw 35 and threadedly connected to the transmission screw 35. The material tray handle 17 is fixedly installed on the second slider 37. When the propulsion motor 34 drives the transmission screw 35 to rotate, the screw drive converts the rotational motion into the linear motion of the second slider 37 along the second slide rail 36, realizing the horizontal movement of the material tray support 17. With the lifting and lowering of the support frame 15, the material tray 7 can be removed from the material rack 8 or placed on the material rack 8.

[0033] Furthermore, the pallet transfer mechanism includes a driving component and a gripping component, the driving component being used to drive the gripping component to move in multiple directions; the gripping component includes: Mounting plate 18, on which four grippers 19 are slidably mounted, each gripper 19 corresponding to a drive wheel 20, the drive wheels 20 being rotatably mounted on the mounting plate 18, and the four drive wheels 20 being connected by a synchronous belt 21; the outer side of the synchronous belt 21 is provided with a toothed plate, and the grippers 19 are provided with teeth corresponding to the toothed plate, the toothed plate meshing with the teeth on the grippers 19, so that the synchronous belt 21 drives the four grippers 19 to move closer or further away from each other synchronously; A gripper drive device 22 is mounted on the mounting plate 18 and is connected to one of the drive wheels 20 in a transmission manner.

[0034] Specifically, the gripping component is the core component that directly contacts and grips the material tray 7. It includes a mounting plate 18, on which four grippers 19 are slidably mounted via linear guide rails around the bottom surface of the mounting plate 18. The four grippers 19 correspond to the four edges of the material tray 7, respectively, and can clamp and fix the material tray 7 from all sides. A drive wheel 20 is provided between each gripper 19 and the mounting plate 18. The drive wheel 20 is rotatably mounted on the bottom surface of the mounting plate 18 with its rotation axis along a second direction. The four drive wheels 20 are arranged in a cross shape. The four drive wheels 20 are connected by a synchronous belt 21 to achieve synchronous transmission. The outer edge of the synchronous belt 21 is provided with a toothed plate, and the grippers 19 are provided with teeth corresponding to the toothed plate. The synchronous belt 21 is sleeved on the drive wheels 20 and is tensioned inside the gripping component by four guide wheels. After tensioning, the synchronous belt 21 also forms a cross shape. Figure 9 The four grippers 19 are arranged in a cross shape, with the toothed plate on the timing belt 21 tightly meshing with the teeth on the grippers 19. The gripper drive device 22 is mounted on the top of the mounting plate 18 and is connected to one of the drive wheels 20. When the gripper drive device 22 is started, it drives the drive wheel 20 connected to it to rotate, and through the transmission action of the timing belt 21, it drives the four grippers 19 to move closer or further apart synchronously, thereby realizing the picking and placing of the material tray 7.

[0035] The gripping component is suspended above the mounting base 2 by a driving component, and can be adjusted along a first direction, a second direction, and a third direction by the driving component, wherein the third direction is perpendicular to the first direction and perpendicular to the second direction. The driving component includes a pair of third slide rails 38, which are arranged along the first direction and extend along the third direction. An X-axis motor 39 is mounted at the end of each third slide rail 38. A third slider 40 is slidably mounted on each third slide rail 38, and the third slider 40 is drivenly connected to the X-axis motor 39 to realize movement in the first direction. A fourth slide rail 41 is mounted on the two third sliders 40. A Y-axis motor 42 is mounted at the end of the fourth slide rail 41, and a fourth slider 43 is slidably mounted on the fourth slide rail 41. The fourth slider 43 is drivenly connected to the Y-axis motor 42 to realize movement along the first direction. Three-way movement; a lifting frame 44 is installed on the fourth slider 43, which extends along the second direction. A Z-axis cylinder 45 is installed at the bottom of the lifting frame 44. The telescopic end of the Z-axis cylinder 45 is connected to the top surface of the mounting plate 18 to adjust the mounting plate 18 along the second direction. Two guide sleeves 46 are also installed at the bottom of the lifting frame 44. A guide rod 47 is slidably installed inside the guide sleeve 46. The guide rod 47 extends along the second direction and its end is fixed to the top surface of the mounting plate 18. The guide sleeves 46 and the guide rod 47 work together to improve the stability of the mounting plate 18 when it is adjusted in the second direction.

[0036] Furthermore, a barcode scanning mechanism 23 is provided on the side of the loading station 4 near the detection component 3. The barcode scanning mechanism 23 is used to identify the information of the battery picked up by the multi-axis robot at the loading station 4.

[0037] Specifically, the scanning mechanism 23 integrates a high-definition image acquisition module, a barcode decoding module, and a data transmission module. The high-definition image acquisition module can quickly capture barcode information on the battery surface, and even when the battery is moving under the drive of a multi-axis robotic arm, it can obtain a clear barcode image through dynamic focusing. The barcode decoding module can quickly parse the acquired image data and extract key identification information such as the battery model, production batch, and serial number. The data transmission module establishes a connection with the main control system of the device through wired or wireless means, and transmits the parsed battery information to the control system in real time, which is then associated with and stored with the battery performance parameters output by the subsequent detection component 3.

[0038] Furthermore, positioning components are provided at the positions of the loading station 4, unloading station 5, and multiple grading stations 6. The positioning components are used to position the material trays 7 placed on the stations.

[0039] Specifically, the positioning component is used to stably position the material tray 7 when it is placed on the workstation, thereby improving the gripping accuracy of the multi-axis robot and the gripping accuracy of the transfer mechanism 9 on the material tray 7. The positioning component includes two positioning plates 48, which are symmetrically arranged on both sides of the support plate 31. A positioning baffle 49 is provided at the end of each positioning plate 48 near the push motor 34. Two through holes are provided on each positioning plate 48, and a guide post 50 is provided in the through hole. The guide post 50 can slide relative to the through hole. The guide post 50 extends along the second direction and one end is fixed to the mounting base plate 2. A lifting drive device 51 is provided at the bottom of the mounting base plate 2 corresponding to the position of the positioning plate 48. The output end of the lifting drive device 51 is connected to a lifting rod 52, which extends along the second direction and abuts against the positioning plate 48 at its top end. When the tray support 17 moves the tray 7 to the position of the positioning plate 48, the lifting drive device 51 drives the lifting rod 52 to extend upward, thereby pushing the positioning plate 48 upward until the top surface of the positioning plate 48 contacts the bottom surface of the tray 7 and disengages the tray 7 from the tray support 17. Optionally, the lifting drive device 51 is a cylinder.

[0040] A first movable plate 53 is provided on the side of the positioning plate 48 away from the propulsion motor 34. The first movable plate 53 is mounted on the positioning plate 48 via a first cylinder 54. The first cylinder 54 is used to drive the first movable plate 53 to move along a first direction, thereby cooperating with the positioning plate to position the material tray 7 in the first direction. A second movable plate 55 is provided on the side of one positioning plate 48 away from the other positioning plate 48. The second movable plate 55 is mounted on the positioning plate 48 via a second cylinder 56. The second cylinder 56 is used to drive the second movable plate 55 to move along a third direction. Through the cooperation of the second movable plate 55 with the positioning plate 48 on the other side, the material tray 7 can be positioned in the third direction.

[0041] Furthermore, a laser sensor 24 is provided on the first guide plate 13 to detect whether the material rack 8 is placed on the first conveyor belt 12.

[0042] Specifically, the laser sensor 24 is fixed on the first guide plate 13. When the material rack 8 moves to the first conveyor belt 12, the laser beam emitted by the laser sensor 24 is reflected by the material rack 8 and received by the receiver. This allows the sensor to determine whether the material rack 8 is placed on the first conveyor belt 12, which can be used to indicate whether the first conveyor belt needs to be started.

[0043] Furthermore, an empty tray temporary storage station 25 is provided on one side of the loading station 4 near the multiple sorting stations 6. The empty tray temporary storage station 25 is used to temporarily store the empty trays 7 on the loading station 4 after the undetected batteries have been removed.

[0044] Specifically, after the multi-axis robotic arm removes all batteries from the tray at the first workstation, the empty tray is transferred to the empty tray storage station 25 for temporary storage by the tray transfer mechanism. Once the trays 7 at the sorting station 6 are full and removed by the tray transfer mechanism, the empty trays at the empty tray storage station 25 are replenished to the sorting station 6, thus achieving reasonable buffering and replenishment of empty trays 7 within the system. Correspondingly, a positioning component is also installed at the empty tray storage station 25 in actual use; the positioning component at the empty tray storage station 25 is not shown in the figure. Similarly, a positioning component is also installed at each sorting station 6 in actual use; the positioning component at the sorting station 6 is not shown in the figure.

[0045] Furthermore, at least one full-tray temporary storage station 26 is provided on one side of the unloading station 5, and the full-tray temporary storage station 26 is used to temporarily store the tray 7 filled with tested batteries.

[0046] Specifically, after the tray 7 on the sorting station 6 is full, a multi-axis robot removes the tray 7 from the sorting station 6. If the unloading station 5 is not busy at this time, the tray transfer mechanism places the tray 7 on the unloading station 5, and then the tray 7 is transported to the unloading rack 8 via a telescopic component. If the unloading station 5 is busy at this time, the tray transfer mechanism places the tray 7 on the full tray temporary storage station 26. Later, when the unloading station 5 is not busy, the tray transfer mechanism transfers the tray 7 from the full tray temporary storage station 26 to the unloading station 5. By setting up the full tray temporary storage station 26, full trays can be temporarily stored, avoiding the sorting station 6 from being blocked by full material and affecting the inspection process, thus realizing the staggered transfer of full trays 7. Correspondingly, each full tray temporary storage station 26 is equipped with a positioning component.

[0047] Furthermore, a compensation station 57 is provided between the empty tray temporary storage station 25 and the unloading station 5. The compensation station 57 can be used as the empty tray temporary storage station 25 to accommodate more empty trays 7; it can also be used as the unloading station 5 to help increase the unloading speed when the unloading station 5 is busy. Correspondingly, a material transfer mechanism 9 is provided on the compensation station 57.

[0048] Furthermore, the support plate 11 is provided with a plurality of blocking drive devices 27 on the side near the material taking unit, and the output end of the blocking drive device 27 is retractable along the second direction and connected to a blocking pin 28.

[0049] Specifically, the blocking drive device 27 drives the blocking pin 28 to extend before the first conveyor belt 12 and the second conveyor belt 16 are connected, so as to prevent the material tray 7 from entering the material picking unit from the first conveyor belt 12 when the first conveyor belt 12 and the second conveyor belt 16 have not been connected.

[0050] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A battery automatic detection and grading device, characterized in that, include: The device housing (1) has a mounting base (2) inside. A detection component (3) is provided on one side of the mounting base (2). The mounting base (2) is provided with a loading station (4), a unloading station (5), multiple sorting stations (6), and a multi-axis robot. The multiple sorting stations (6) are used to place trays (7) containing batteries that have been tested and have different specifications. The multi-axis robot is used to pick up untested batteries from the loading station (4) and put them into the detection component (3) for testing. After testing, the batteries are placed into the corresponding sorting station (6). Multiple material transfer mechanisms (9) are arranged inside the housing (1) of the device. Each material transfer mechanism (9) includes a conveying unit and a picking unit. The conveying unit is used to receive externally input material racks (8) and convey them to the picking unit, or to convey the material racks (8) at the position of the conveying unit to the outside. The picking unit is used to remove the trays (7) containing untested batteries from the material racks (8) and transfer them to the loading station (4), or to place the trays (7) containing tested batteries on the unloading station (5) into the material racks (8). A transfer mechanism is installed inside the housing and is used to transfer the material tray (7) of the sorting station (6) to the unloading station (5).

2. The automatic battery detection and grading device according to claim 1, characterized in that, The device housing (1) has a first opening (10) on one side for feeding and discharging materials; the conveying unit includes: A support plate (11) is installed corresponding to the first opening (10). A pair of first conveyor belts (12) for conveying the material rack (8) are installed on the support plate (11). The conveying direction of the first conveyor belts (12) is a first direction, which is parallel to the mounting base plate (2). A first guide plate (13) is provided on the side of the pair of first conveyor belts (12) that are far apart from each other. The first guide plate (13) extends along the first direction and a limiting protrusion (14) is provided at the end that is far away from the material picking unit.

3. The automatic battery detection and grading device according to claim 2, characterized in that, The material handling unit includes a telescopic component and a lifting component. The lifting component includes a support frame (15) that can be raised and lowered along a second direction. A pair of second conveyor belts (16) are provided on the support frame (15). The transmission direction of the second conveyor belts (16) is the first direction. When the support frame (15) is raised and lowered to a set height, it docks with the first conveyor belt (12). The second direction is perpendicular to the mounting base plate (2). The telescopic component includes a tray handle (17) that can be extended and lowered along the first direction. It is used to transfer the tray (7) from the tray (8) on the support frame (15) to the loading station (4), or to transfer the tray (7) from the unloading station (5) to the support frame (15).

4. The automatic battery detection and grading device according to claim 3, characterized in that, The tray transfer mechanism includes a drive component and a gripping component. The drive component is used to drive the gripping component to move in multiple directions. The gripping component includes: Mounting plate (18), on which four grippers (19) are slidably mounted, each gripper (19) is provided with a corresponding drive wheel (20), the drive wheel (20) is rotatably mounted on the mounting plate (18), and the four drive wheels (20) are connected by a synchronous belt (21); the outer side of the synchronous belt (21) is provided with a toothed plate, and the grippers (19) are provided with teeth corresponding to the toothed plate, the toothed plate meshes with the teeth on the grippers (19) so that the synchronous belt (21) drives the four grippers (19) to move closer or further away from each other synchronously; A gripper drive device (22) is mounted on the mounting plate (18) and is connected to one of the drive wheels (20) in a transmission manner.

5. The automatic battery detection and grading device according to claim 4, characterized in that, The loading station (4) is equipped with a barcode scanning mechanism (23) on the side near the detection component (3). The barcode scanning mechanism (23) is used to identify the information of the battery picked up by the multi-axis robot at the loading station (4).

6. The automatic battery detection and grading device according to claim 5, characterized in that, Positioning components are provided at the positions of the loading station (4), unloading station (5) and multiple grading stations (6), and the positioning components are used to position the material trays (7) placed on the stations.

7. The automatic battery detection and grading device according to claim 6, characterized in that, A laser sensor (24) is provided on the first guide plate (13) to detect whether the material rack (8) is placed on the first conveyor belt (12).

8. The automatic battery detection and grading device according to claim 7, characterized in that, The loading station (4) is provided with an empty tray temporary storage station (25) on one side near the multiple sorting stations (6). The empty tray temporary storage station (25) is used to temporarily store the empty trays (7) on the loading station (4) after the undetected batteries have been taken.

9. The automatic battery detection and grading device according to claim 8, characterized in that, The unloading station (5) has at least one full tray temporary storage station (26) on one side, which is used to temporarily store the tray (7) filled with tested batteries.

10. The automatic battery detection and grading device according to claim 9, characterized in that, The support plate (11) is provided with a plurality of blocking drive devices (27) on the side near the material taking unit. The output end of the blocking drive device (27) is retractable along the second direction and is connected to a blocking pin (28).

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