Battery detection device and method

By designing the battery feeding, testing and unloading mechanism of the battery detection device, using two sets of battery detection mechanisms and CCD detection devices, the continuous detection and fully automated transportation of batteries are realized, and the problem of low detection efficiency in the prior art is solved, which improves battery detection efficiency and reduces costs.

CN120243456APending Publication Date: 2025-07-04NORDKETTE (SUZHOU) INTELLIGENT EQUIPMENT CO LTD
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Patent Information

Application Number
CN202510527170.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-25
Publication Date
2025-07-04

AI Technical Summary

Technical Problem

The existing battery detection device can only detect one battery at a time, and it is necessary to wait for the previous battery to be tested to complete the detection before transporting the next battery to be tested, resulting in low detection efficiency.

Method used

A battery detection device is designed, including a battery feeding mechanism, a detection mechanism and a discharge mechanism. Two sets of battery detection mechanisms are arranged along the feeding guide rails, and two sets of second battery placing seats and CCD detection devices are provided to realize continuous detection of the battery and fully automatic transportation of the battery through the battery material collection device.

Benefits of technology

Continuous detection of batteries is realized, detection efficiency is improved, and battery transfer costs are reduced through fully automated transportation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a battery detection device, and relates to the technical field of battery detection, and the device comprises a battery feeding mechanism which comprises a feeding guide rail and a first battery placement seat slidably arranged on the feeding guide rail; the battery detection mechanism comprises a battery conveying assembly and a battery detection assembly, the battery conveying assembly comprises two first conveying guide rails, a moving seat is slidably arranged on the first conveying guide rails, a second conveying guide rail is fixedly arranged on the first conveying guide rails, and a second battery placement seat is slidably arranged on the second conveying guide rail. The battery detection assembly comprises a CCD (Charge Coupled Device) detection device which is positioned right above a certain position in a displacement path of the two second battery placement seats; and the battery unloading mechanism comprises an unloading guide rail and a third battery placing seat which is arranged on the unloading guide rail in a sliding manner. According to the invention, the two groups of battery detection mechanisms can detect the battery at the same time, and the two second battery placement seats can alternately drive the battery to move to the CCD detection device, so that continuous detection of the battery is realized.
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Description

Technical Field

[0001] The present invention relates to the technical field of battery detection, and particularly to a battery detection device and method. Background Art

[0002] At present, batteries are widely used in various industries. The demand for batteries is increasing, and the processing and manufacturing level of batteries is also getting higher and higher. After the battery is processed, it is necessary to detect the battery surface. The detection items include the appearance size, thickness, flange edge, etc. of the battery, to avoid situations such as protrusions, depressions, cracks, etc. on the battery surface, which may lead to a decrease in the service life of the battery or even endanger the safety of users.

[0003] Currently, the existing battery detection devices can only detect one battery at a time, and during the detection process, it is necessary to wait for the previous battery to be detected before transporting the next battery to be detected, resulting in low battery detection efficiency. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the disadvantages of the prior art and provide a battery detection device and method.

[0005] To solve the above technical problems, the technical solution of the present invention is as follows: A battery detection device, comprising: A battery feeding mechanism, including a feeding guide rail and a first battery placement seat slidably arranged on the feeding guide rail; A battery detection mechanism, including a battery conveying component and a battery detection component. The battery conveying component includes two first conveying guide rails located on one side of the feeding guide rail. Both of the two first conveying guide rails are perpendicular to the feeding guide rail and are arranged in sequence along the extending direction of the feeding guide rail. A moving seat is slidably arranged on the first conveying guide rail, and a second conveying guide rail perpendicular to the first conveying guide rail is fixedly arranged on the moving seat. A second battery placement seat is slidably arranged on the second conveying guide rail. The battery detection component includes a CCD detection device, and the CCD detection device is located directly above a certain position in the displacement path of the two second battery placement seats; And a battery discharging mechanism, including a discharging guide rail and a third battery placement seat slidably arranged on the discharging guide rail. The discharging guide rail is parallel to the feeding guide rail, and the discharging guide rail and the feeding guide rail are respectively located at both ends of the first conveying guide rail.

[0006] As a preferred solution of the battery detection device of the present invention, wherein: the CCD detection device is fixedly installed above the first conveying guide rail through a mounting bracket, and the horizontal distance between the CCD detection device and the two first conveying guide rails is equal; The battery detection mechanism further includes a first battery picking device for moving the battery to be detected on the first battery placement seat to the second battery placement seat. The first battery picking device includes a first mounting plate fixedly installed on one side of the mounting bracket adjacent to the feeding guide rail, a first lifting drive device fixedly installed on the first mounting plate, a first lifting seat drivingly connected to the first lifting drive device, a first rotation drive device fixedly installed on the first lifting seat, a first battery suction attachment drivingly connected to the first rotation drive device, a first slide rail fixedly installed on the first mounting plate, a first slide seat slidably disposed on the first slide rail, a second lifting drive device fixedly installed on the first slide seat, a second lifting seat drivingly connected to the second lifting drive device, a second rotation drive device fixedly installed on the second lifting seat, and a second battery suction attachment drivingly connected to the second rotation drive device; The first lifting seat and the feeding guide rail are in the same vertical plane. The second lifting seat is located between the first lifting seat and the battery fixing seat, and the extending direction of the first slide rail is parallel to the extending direction of the first conveying guide rail. The rotation axes of the first rotation drive device and the second rotation drive device are both parallel to the extending direction of the feeding guide rail.

[0007] As a preferred solution of the battery detection device of the present invention, the battery detection mechanism further includes a thickness detection assembly for detecting the thickness of the battery. The thickness detection assembly includes a third conveying guide rail perpendicular to the first conveying guide rail, a thickness detection pressing head fixedly disposed at one end of the third conveying guide rail, and a fourth battery placement seat slidably disposed on the third conveying guide rail. The third conveying guide rail is located between the first conveying guide rail and the discharging guide rail.

[0008] As a preferred solution of the battery detection device of the present invention, the battery detection mechanism further includes a second battery picking device for moving the battery on the second battery placement seat to the thickness detection assembly for detection and moving the battery to the third battery placement seat after the detection is completed; The second battery picking device includes a second mounting plate fixedly installed on the frame, a third lifting drive device fixedly installed on the second mounting plate, a third lifting seat drivingly connected to the third lifting drive device, a third rotation drive device fixedly installed on the third lifting seat, a third battery suction attachment drivingly connected to the third rotation drive device, a second slide rail and a third slide rail fixedly installed on the second mounting plate, a second slide seat slidably arranged on the second slide rail, a third slide seat slidably arranged on the third slide rail, a fourth lifting drive device fixedly installed on the second slide seat, a fourth lifting seat drivingly connected to the fourth lifting drive device, a fourth rotation drive device fixedly installed on the fourth lifting seat, a fourth battery suction attachment drivingly connected to the fourth rotation drive device, a fifth lifting drive device fixedly installed on the third slide seat, a fifth lifting seat drivingly connected to the fifth lifting drive device, a fifth rotation drive device fixedly installed on the fifth lifting seat, and a fifth battery suction attachment drivingly connected to the fifth rotation drive device; The third lifting seat and the unloading guide rail are in the same vertical plane, the extending directions of the second slide rail and the third slide rail are parallel to the extending direction of the first conveying guide rail, and the rotation axes of the third rotation drive device, the fourth rotation drive device, and the fifth rotation drive device are all parallel to the extending direction of the feeding guide rail.

[0009] As a preferred solution of the battery detection device of the present invention, wherein: two groups of the battery detection mechanisms are provided, and the two groups of the battery detection mechanisms are arranged in sequence along the extending direction of the feeding guide rail; Two of the first battery placement seats are slidably arranged on the feeding guide rail, and two of the third battery placement seats are slidably arranged on the unloading guide rail.

[0010] As a preferred solution of the battery detection device of the present invention, wherein: it further includes a battery loading and unloading mechanism, and the battery loading and unloading mechanism includes a battery loading component, a battery unloading component, a first battery handling component, and a second battery handling component; The battery loading component includes a loading frame, a first lifting platform arranged in the loading frame, a sixth lifting drive device for driving the first lifting platform to lift, and a feeding conveying device arranged in the loading frame and used for conveying the tray stack to directly above the first lifting platform; The battery unloading component includes an unloading frame, a second lifting platform arranged in the unloading frame, a seventh lifting drive device for driving the second lifting platform to lift, and an unloading conveying device arranged in the unloading frame and used for conveying the tray stack out of the unloading frame; The first battery handling component includes a first handling robot for handling the batteries in the tray stack in the battery loading component to the first battery placement seat, and two sixth battery suction attachments are fixedly arranged at the lower end of the first handling robot; The second battery handling component includes a second handling robot for handling the batteries on the fourth battery placement seat to the tray stack in the battery unloading component, and two seventh battery suction attachments are fixedly arranged at the lower end of the second handling robot.

[0011] As a preferred solution of the battery detection device of the present invention, wherein: the battery loading and unloading mechanism further includes a tray buffer component and a tray handling component; The tray buffer component includes a buffer frame located between the loading frame and the unloading frame, a third lifting platform arranged in the buffer frame, and an eighth lifting drive device for driving the third lifting platform to lift and lower; The tray handling component includes a tray handling support, a handling slide seat slidably arranged on the tray handling support, a ninth lifting drive device fixedly arranged on the handling slide seat, and a tray suction attachment drivingly connected to the ninth lifting drive device. The length direction of the tray handling support is parallel to the extension direction of the first conveying guide rail, and the loading frame, the buffer frame, and the unloading frame are arranged in sequence along the length direction of the tray handling support.

[0012] As a preferred solution of the battery detection device of the present invention, wherein: it further includes a photographing and positioning component for photographing and positioning the batteries adsorbed on the sixth battery suction attachment. The photographing and positioning component is fixedly arranged on one side of the feeding guide rail, and the photographing and positioning component is directly below a certain position in the displacement path of the sixth battery suction attachment.

[0013] The present invention also provides a battery detection method, which is based on the above battery detection device and includes: The battery loading component transports the tray stack containing the batteries to be detected to the loading station; The first handling robot adsorbs two batteries to be detected from the topmost tray and transports them to the first battery placement seat on the feeding guide rail; The two first battery placement seats move along the feeding guide rail to be directly below the two first lifting seats respectively; In any battery detection mechanism, a first battery picking device moves the battery to be detected on a first battery placement seat to one of the second battery placement seats. The second battery placement seat moves along a preset displacement path and, when it moves to directly below the CCD detection device, the CCD detection device takes pictures of the battery for detection. After that, the second battery placement seat continues to move along the preset displacement path to the picking station of a second battery picking device. The second picking device moves the battery on the second battery placement seat to a thickness detection component, and the thickness detection component detects the thickness of the battery. After the detection is completed, the battery is moved to a third battery placement seat on a discharging guide rail. At the same time, after the battery on the first battery placement seat is taken away, the two first battery placement seats reset to their initial positions. The first handling robot transports the battery to be detected to the first battery placement seat again, and the first battery placement seat moves along a feeding guide rail to directly below the two first lifting seats respectively. The first battery picking device moves the battery to be detected on the first battery placement seat to the other second battery placement seat, so that the two second battery placement seats drive the battery to be detected in an alternating cycle; The two third battery placement seats move along the discharging guide rail to the picking station of a second handling robot, and the third handling robot moves the batteries on the two third battery placement seats to a tray in a battery blanking component.

[0014] As a preferred solution of the battery detection method of the present invention, it further includes: After all the batteries to be detected in the topmost tray in the battery loading component are taken out, a tray handling component transports the empty tray to the battery blanking component. After that, when all the batteries to be detected in the topmost tray in the battery loading component are taken out and the tray in the battery blanking component is not full, the tray handling component transports the empty tray on the topmost layer in the battery loading component to a buffer rack, and transports the empty tray in the buffer rack to the battery blanking component after the topmost tray in the battery blanking component is full.

[0015] The beneficial effects of the present invention are: (1) In the battery conveying component of the present invention, there are two groups of second battery placement seats and a conveying guide rail for the second battery placement seats, and the CCD detection device is directly above a certain position in the displacement paths of the two second battery placement seats. The two second battery placement seats can alternately drive the battery to move directly below the CCD detection device, so as to realize continuous detection of the battery.

[0016] (2) In the present invention, there are two sets of battery detection mechanisms, which are located on the same side of the feeding guide rail. Two first battery placement seats are arranged on the feeding guide rail, and the two first battery placement seats are respectively driven by two translation driving devices, so that the two first battery placement seats can be moved to the feeding positions of the two sets of battery detection mechanisms, enabling the two sets of battery detection mechanisms to be fed simultaneously, and further enabling the two sets of battery detection mechanisms to detect the batteries simultaneously, thereby further improving the detection efficiency of the batteries.

[0017] (3) A photographing and positioning component is arranged on one side of the feeding guide rail of the present invention. It can photograph and position the battery adsorbed on the first handling robot, calculate the coordinate offset of the battery when the first handling robot adsorbs the battery, which is convenient for the first handling robot to adjust the placement position and angle of the battery according to the coordinate offset of the battery, so as to accurately place the battery on the first battery placement seat.

[0018] (4) In the present invention, the battery to be detected is moved from the battery feeding mechanism to the battery detection mechanism by the first battery picking device, and the detected battery is moved to the battery discharging mechanism by the second battery picking device. These two sets of battery picking devices realize the picking and transfer of the battery through the translation, lifting and rotation of the battery adsorbing component, which not only realizes the fully automated transportation in the battery detection process, but also has a relatively low battery transfer cost. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for description in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a schematic structural diagram of the battery detection device provided by the present invention; Figure 2 It is a schematic structural diagram of the battery loading and unloading mechanism in the battery detection device provided by the present invention; Figure 3 It is a schematic structural diagram of the first battery handling component in the battery detection device provided by the present invention; Figure 4 It is a schematic structural diagram of the battery feeding mechanism in the battery detection device provided by the present invention; Figure 5 It is a schematic principle diagram of the photographing and positioning component for photographing and positioning the battery; Figure 6 It is a schematic structural diagram of the battery detection mechanism in the battery detection device provided by the present invention; Figure 7 It is a schematic structural diagram of the battery conveying component in the battery detection mechanism; Figure 8 It is a schematic structural diagram of a CCD detection device in a battery detection mechanism; Figure 9 It is a schematic structural diagram of a first battery material taking device in a battery detection mechanism; Figure 10 It is a schematic structural diagram of a thickness detection component in a battery detection mechanism; Figure 11 It is a schematic structural diagram of a second battery material taking device in a battery detection mechanism; Figure 12 It is a schematic structural diagram of a second battery handling component in the battery detection device provided by the present invention; Figure 13 It is a schematic structural diagram of a battery discharging mechanism in the battery detection device provided by the present invention; Wherein: 100, battery feeding mechanism; 200, battery detection mechanism; 300, battery discharging mechanism; 400, battery loading and unloading mechanism; 110, feeding guide rail; 120, first battery placement seat; 210, battery conveying assembly; 211, first conveying guide rail; 212, moving seat; 213, second conveying guide rail; 214, second battery placement seat; 220, battery detection assembly; 221, CCD detection device; 222, mounting bracket; 230, first battery picking device; 231, first mounting plate; 232, first lifting drive device; 232a, first lifting seat; 232b, first rotating drive device; 232c, first battery suction attachment; 233, first slide rail; 233a, first slide seat; 233b, second lifting drive device; 233c, second lifting seat; 233d, second rotating drive device; 233e, second battery suction attachment; 240, thickness detection assembly; 241, third conveying guide rail; 242, thickness detection press head; 243, fourth battery placement seat; 250, second battery picking device; 251, second mounting plate; 252, third lifting drive device; 252a, third lifting seat; 252b, third rotating drive device; 252c, third battery suction attachment; 253, second slide rail; 253a, second slide seat; 253b, fourth lifting drive device; 253c, fourth lifting seat; 253d, fourth rotating drive device; 253e, fourth battery suction attachment; 254, third slide rail; 254a, third slide seat; 254b, fifth lifting drive device; 254c, fifth lifting seat; 254d, fifth rotating drive device; 254e, fifth battery suction attachment; 310, discharging guide rail; 320, third battery placement seat; 410, battery loading assembly; 411, loading frame; 412, first lifting platform; 413, feeding conveying device; 420, battery unloading assembly; 421, unloading frame; 422, second lifting platform; 423, discharging conveying device; 430, first battery handling assembly; 431, first handling robot; 432, sixth battery suction attachment; 440, second battery handling assembly; 441, second handling robot; 442, seventh battery suction attachment; 450, pallet buffer assembly; 451, buffer frame; 452, third lifting platform; 460, pallet handling assembly; 461, pallet handling bracket; 462, handling slide seat; 463, pallet suction attachment. Detailed implementation manners

[0021] To make the content of the present invention more clearly understood, the following further detailed description of the present invention is made according to the specific implementation manners in combination with the accompanying drawings.

[0022] See Figures 1 to 13, this application provides a battery detection device, which includes a battery loading and unloading mechanism 400, a battery feeding mechanism 100, a battery detection mechanism 200, and a battery unloading mechanism 300. Among them, the battery loading and unloading mechanism 400 transports the pallet stack containing the batteries to be detected to the loading station, and batches and transports the batteries to be detected to the battery feeding mechanism 100. The battery feeding mechanism 100 transports the batteries to be detected to the battery detection mechanism 200 for detection, and transports the batteries to the battery unloading mechanism 300 after the detection is completed. The battery unloading mechanism 300 transports the batteries that have completed the detection into the battery loading and unloading mechanism 400 to achieve the unloading of the batteries.

[0023] Specifically, the battery loading and unloading mechanism 400 includes a battery loading component 410, a battery unloading component 420, a first battery handling component 430, a second battery handling component 440, a pallet buffer component 450, and a pallet handling component 460.

[0024] Among them, the battery loading component 410 includes a loading frame 411, a first lifting platform 412 arranged inside the loading frame 411, a sixth lifting drive device for driving the first lifting platform 412 to lift, and a feeding conveyor device 413 arranged inside the loading frame 411 and used to transport the pallet stack to directly above the first lifting platform 412. Among them, the feeding conveyor device 413 includes a horizontal conveyor belt for transporting the pallet stack and a horizontal conveyor motor for driving the horizontal conveyor belt to rotate. When the horizontal conveyor motor operates, it drives the horizontal conveyor belt to operate, and then drives the pallet stack located on the horizontal conveyor belt to move towards the first lifting platform 412, and finally be located directly above the first lifting platform 412. The first lifting platform 412 is slidably arranged on the first lifting vertical plate, and the first lifting vertical plate is fixedly installed inside the loading frame 411. When the sixth lifting drive device operates, it can drive the first lifting platform 412 to lift along the slide rail on the first lifting vertical plate, thereby lifting the pallet stack on the horizontal conveyor belt and driving the pallet stack to move upward to the loading station.

[0025] The structure of the battery blanking assembly 420 is basically the same as that of the battery loading assembly 410. The battery blanking assembly 420 includes a blanking frame 421, a second lifting platform 422 disposed within the blanking frame 421, a seventh lifting drive device for driving the lifting of the second lifting platform 422, and a discharging conveying device 423 disposed within the blanking frame 421 and used for conveying the pallet stack out of the blanking frame 421. Among them, the discharging conveying device 423 also includes a horizontal conveyor belt for conveying the pallet stack and a horizontal conveying motor for driving the rotation of the horizontal conveyor belt. The second lifting platform 422 is slidably disposed on the second lifting vertical plate, and the second lifting vertical plate is fixedly installed within the blanking frame 421. When the seventh lifting drive device operates, it can drive the second lifting platform 422 to lift along the slide rail on the second lifting vertical plate. It should be noted that in the initial state, the second lifting platform 422 is located at the upper end of the blanking frame 421. As the number of pallets placed on the second lifting platform 422 gradually increases, the second lifting platform 422 gradually moves downward to ensure that the uppermost pallet on the second lifting platform 422 is always at the blanking station. After the pallet on the second lifting platform 422 is fully loaded, the second lifting platform 422 descends to be located on the horizontal conveyor belt, and is conveyed out of the blanking frame 421 by the horizontal conveyor belt.

[0026] The pallet buffer assembly 450 is used to buffer the empty pallets in the battery loading assembly 410, and move the pallets on the pallet buffer assembly 450 to the battery blanking assembly 420 after the pallets in the battery blanking assembly 420 are loaded with batteries, so as to realize continuous blanking of the battery blanking assembly 420. The pallet buffer assembly 450 includes a buffer frame 451 fixedly disposed between the loading frame 411 and the blanking frame 421, a third lifting platform 452 disposed within the buffer frame 451, and an eighth lifting drive device for driving the lifting of the third lifting platform 452. Among them, the third lifting platform 452 is slidably disposed on the third lifting vertical plate, and the third lifting vertical plate is fixedly installed within the buffer frame 451. When the eighth lifting drive device operates, it can drive the third lifting platform 452 to lift along the slide rail on the third lifting vertical plate.

[0027] The pallet handling assembly 460 is used to move the empty pallets in the battery loading assembly 410 to the pallet buffer assembly 450 or the battery unloading assembly 420, and is also used to move the empty pallets in the pallet buffer assembly 450 to the battery unloading assembly 420. The pallet handling assembly 460 includes a pallet handling support 461, a handling slide 462 slidably disposed on the pallet handling support 461, a ninth lifting drive device fixedly disposed on the handling slide 462, and a pallet suction attachment 463 drivingly connected to the ninth lifting drive device. Among them, the pallet handling support 461 is erected above the loading frame 411, the buffer frame 451, and the unloading frame 421. A handling slide rail is fixedly disposed on the pallet handling support 461. The loading frame 411, the buffer frame 451, and the unloading frame 421 are arranged in sequence along the extending direction of the handling slide rail. The handling slide 462 is slidably disposed on the handling slide rail and is driven by a driving electric cylinder or other translation driving device. By sliding the handling slide 462 along the handling slide rail, the pallet suction attachment 463 can be driven to move back and forth between the loading frame 411, the buffer frame 451, and the unloading frame 421. At the same time, by driving the ninth lifting drive device, the pallet suction attachment 463 can be driven to lift, so that the pallet can be moved back and forth between the loading frame 411, the buffer frame 451, and the unloading frame 421.

[0028] The first battery handling assembly 430 is disposed between the battery loading assembly 410 and the battery feeding mechanism 100, and is used to move the batteries to be detected in the pallets in the battery loading assembly 410 to the battery feeding mechanism 100. The first battery handling assembly 430 includes a first handling robot 431, and its end reciprocates between the battery loading assembly 410 and the battery feeding mechanism 100 to realize continuous battery loading.

[0029] The second battery handling assembly 440 is disposed between the battery unloading assembly 420 and the battery discharging mechanism 300, and is used to move the batteries that have been detected in the battery discharging mechanism 300 to the battery unloading assembly 420 to realize unloading. The second battery handling assembly 440 includes a second handling robot 441, and its end reciprocates between the battery discharging mechanism 300 and the battery unloading assembly 420 to realize continuous battery unloading.

[0030] The battery feeding mechanism 100 includes a feeding guide rail 110 and a first battery placement seat 120 slidably arranged on the feeding guide rail 110. Among them, the extending direction of the feeding guide rail 110 is perpendicular to the extending direction of the handling slide rail. Two first battery placement seats 120 are arranged on the feeding guide rail 110. Correspondingly, two sixth battery suction attachments 432 are fixedly arranged at the end of the first handling manipulator 431, so that the first handling manipulator 431 can adsorb two batteries to be detected from the tray of the battery loading assembly 410 each time and place them on the two first battery placement seats 120 respectively. At the same time, the two first battery placement seats 120 are respectively driven by two translation driving devices, so that the two first battery placement seats 120 can move to the loading positions of the two groups of battery detection mechanisms 200, and then the two groups of battery detection mechanisms 200 can be loaded simultaneously.

[0031] Preferably, during the process of the first handling manipulator 431 transporting the battery to be detected from the battery loading assembly 410 to the first battery placement seat 120, it will first pass above the shooting and positioning assembly. The shooting and positioning assembly is fixedly arranged on one side of the feeding guide rail 110. The position of the battery adsorbed on the first handling manipulator 431 is photographed and positioned through the shooting and positioning assembly to capture the coordinate offset of the battery. Then, the first handling manipulator 431 adjusts the placement position and angle of the battery according to the coordinate offset of the battery and accurately places the battery on the first battery placement seat 120. See Figure 5 , the specific principle is as follows: First, the camera origin (X0, Y0) is fixed within the field of view of the fixed camera. Then, with the camera origin coordinate system as a reference, the La1 angles of L and L' can be calculated, and the unit offset coordinates are AX = X - X' and AY = Y - Y'. Finally, the image is collected through the shooting and positioning assembly, and the offset coordinates (X, AY) and the offset angle La1 are calculated.

[0032] The two groups of battery detection mechanisms 200 are arranged on the same side of the feeding guide rail 110 and are arranged in sequence along the extending direction of the feeding guide rail 110. Each group of battery detection mechanisms 200 includes a battery conveying assembly 210, a battery detection assembly 220, a first battery picking device 230, and a second battery picking device 250. Among them, the first battery picking device 230 moves the battery to be detected on the first battery placement seat 120 into the battery conveying assembly 210. Then, the battery conveying assembly 210 conveys the battery to be detected to the battery detection assembly 220 for detection. After the detection is completed, the second battery picking device 250 moves the battery into the battery unloading mechanism 300.

[0033] Specifically, the battery conveying assembly 210 includes two first conveying guide rails 211 located on one side of the feeding guide rail 110. The two first conveying guide rails 211 are arranged perpendicular to the feeding guide rail 110 and are sequentially arranged along the extending direction of the feeding guide rail 110. A moving seat 212 is slidably arranged on each first conveying guide rail 211, and a second conveying guide rail 213 is fixedly installed on the moving seat 212. The moving seat 212 is driven by a driving electric cylinder or other translation driving devices. The second conveying guide rail 213 is perpendicular to the first conveying guide rail 211 and extends in the horizontal plane. A second battery placement seat 214 is slidably arranged on the second conveying guide rail 213. The second battery placement seat 214 is driven by a driving electric cylinder or other translation driving devices. After the battery to be detected is placed on the second battery placement seat 214 by the first battery picking device 230, the battery to be detected is moved in the X direction and the Y direction by the movement of the second battery placement seat 214 along the second conveying guide rail 213 and the movement of the moving seat 212 along the first conveying guide rail 211, so that it can be moved to the battery detection assembly 220 for detection.

[0034] The battery detection assembly 220 includes a CCD detection device 221, which is fixedly installed above the first conveying guide rail 211 through a mounting bracket 222, and the horizontal distance between the CCD detection device 221 and the two first conveying guide rails 211 is equal. The CCD detection device 221 is located directly above a certain position in the displacement paths of the two second battery placement seats 214. The two second battery placement seats 214 can alternately drive the battery to move directly below the CCD detection device 221, so as to continuously perform CCD detection on the battery.

[0035] When performing CCD detection on the battery, first move the battery to be detected to the first detection position of the CCD detection device 221, capture the first image of the battery to be detected using backlight and ring light, then capture the second image of the battery to be detected using surface light (UV strip light), then move the battery to be detected to the second detection position, capture the third image of the battery to be detected using backlight and ring light, capture the fourth image of the battery to be detected using surface light (UV strip light), and finally splice the first image, the second image, the third image and the fourth image to measure the size.

[0036] The above-mentioned first battery picking device 230 includes a first mounting plate 231 fixedly installed on one side of the mounting bracket 222 adjacent to the feeding guide rail 110. A first lifting driving device 232 is fixedly installed on the first mounting plate 231. The first lifting driving device 232 is drivingly connected to a first lifting seat 232a and can drive the first lifting seat 232a to lift in the vertical direction. A first rotating driving device 232b is fixedly installed on the first lifting seat 232a, and the first rotating driving device 232b is drivingly connected to a first battery suction attachment 232c. A first slide rail 233 is also fixedly installed on the first mounting plate 231. The extending direction of the first slide rail 233 is parallel to the extending direction of the first conveying guide rail 211. A first slide seat 233a is slidably installed on the first slide rail 233. A second lifting driving device 233b is fixedly installed on the first slide seat 233a. The second lifting driving device 233b is drivingly connected to a second lifting seat 233c and can drive the second lifting seat 233c to lift in the vertical direction. A second rotating driving device 233d is fixedly installed on the second lifting seat 233c, and the second rotating driving device 233d is drivingly connected to a second battery suction attachment 233e.

[0037] It should be noted that the first lifting seat 232a and the feeding guide rail 110 are located in the same vertical plane. Therefore, after the first lifting driving device 232 drives the first lifting seat 232a to move downward, the first battery suction attachment 232c can adsorb the battery placed on the first battery placement seat 120 and drive it to lift. At the same time, the rotation axes of the first rotating driving device 232b and the second rotating driving device 233d are both parallel to the extending direction of the feeding guide rail 110. Therefore, the first rotating driving device 232b can drive the first battery suction attachment 232c to rotate 90° in the direction of the second battery suction attachment 233e. Correspondingly, the second rotating driving device 233d can drive the second battery suction attachment 233e to rotate 90° in the direction of the first battery suction attachment 232c, so that the first battery suction attachment 232c and the second battery suction attachment 233e are facing each other. At this time, by sliding the first slide seat 233a along the first slide rail 233, the second battery suction attachment 233e can be docked with the first battery suction attachment 232c, and the battery adsorbed on the first battery suction attachment 232c can be transferred to the second battery suction attachment 233e. Then, the second rotating driving device 233d is used to drive the second battery suction attachment 233e to reset to the vertical direction, and by sliding the first slide seat 233a along the first slide rail 233 and driving the second lifting seat 233c to lift by the second lifting driving device 233b, the battery adsorbed on the second battery suction attachment 233e can be placed on the second battery placement seat 214.

[0038] The battery detection mechanism 200 further includes a thickness detection component 240 for detecting the thickness of the battery. The thickness detection component 240 includes a third conveying guide rail 241, a thickness detection pressure head 242 fixedly arranged at one end of the third conveying guide rail 241, and a fourth battery placement seat 243 slidably arranged on the third conveying guide rail 241. Among them, the extending direction of the third conveying guide rail 241 is perpendicular to the extending direction of the first conveying guide rail 211, and the third conveying guide rail 241 is located between the first conveying guide rail 211 and the unloading guide rail 310 in the battery unloading mechanism 300. After the battery to be detected finishes the CCD detection, the second battery placement seat 214 drives the battery to continue moving along the first conveying guide rail 211, and the battery can be moved to the loading station of the thickness detection component 240. The second battery picking device 250 transports the battery on the second battery placement seat 214 to the fourth battery placement seat 243, and then moves it to directly below the thickness detection pressure head 242 along the third conveying guide rail 241 through the fourth battery placement seat 243, and the thickness of the battery can be detected. (Explanation of the thickness detection principle) After the thickness detection is completed, the second battery placement seat 214 transports the battery on the fourth battery placement seat 243 to the third battery placement seat 320 in the battery unloading mechanism 300.

[0039] The above-mentioned second battery picking device 250 includes a second mounting plate 251 fixedly installed on the frame. A third lifting drive device 252 is fixedly installed on the second mounting plate 251. The third lifting drive device 252 is drivingly connected to a third lifting seat 252a and can drive the third lifting seat 252a to lift in the vertical direction. A third rotation drive device 252b is fixedly installed on the third lifting seat 252a. The third rotation drive device 252b is drivingly connected to a third battery suction attachment 252c. A second slide rail 253 and a third slide rail 254 are also fixedly installed on the second mounting plate 251. The extending directions of the second slide rail 253 and the third slide rail 254 are both parallel to the extending direction of the first conveying guide rail 211. A second slide seat 253a is slidably installed on the second slide rail 253, and a fourth lifting drive device 253b is fixedly installed on the second slide seat 253a. The fourth lifting drive device 253b is drivingly connected to a fourth lifting seat 253c and can drive the fourth lifting seat 253c to lift in the vertical direction. A fourth rotation drive device 253d is fixedly installed on the fourth lifting seat 253c, and the fourth rotation drive device 253d is drivingly connected to a fourth battery suction attachment 253e. A fifth lifting drive device 254b is fixedly installed on the third slide seat 254a. The fifth lifting drive device 254b is drivingly connected to a fifth lifting seat 254c and can drive the fifth lifting seat 254c to lift in the vertical direction. A fifth rotation drive device 254d is fixedly installed on the fifth lifting seat 254c, and the fifth rotation drive device 254d is drivingly connected to a fifth battery suction attachment 254e.

[0040] It should be noted that the rotation axes of the third rotation driving device 252b, the fourth rotation driving device 253d, and the fifth rotation driving device 254d are all parallel to the extending direction of the feeding guide rail 110 in the battery unloading mechanism 300.

[0041] When the second battery placement seat 214 drives the battery to move along the first conveying guide rail 211 to the loading station of the thickness detection assembly 240, the fifth lifting seat 254c is located directly above the battery. At this time, the fifth lifting seat 254c can drive the fifth battery suction attachment 254e to move downward, adsorb the battery on the second battery placement seat 214, and drive the battery to lift. Then, similar to the above-mentioned first battery picking device 230, by rotating the fifth battery suction attachment 254e and the fourth battery suction attachment 253e, the fifth battery suction attachment 254e is aligned with the fourth battery suction attachment 253e, and then by translating the fourth battery suction attachment 253e, the battery adsorbed on the fifth battery suction attachment 254e can be transferred to the fourth battery suction attachment 253e. Then, the battery is placed on the fourth battery placement seat 243 for thickness detection by moving the fourth battery suction attachment 253e. After the detection is completed, in the same operation process as above, the battery adsorbed on the fourth battery suction attachment 253e can be transferred to the third battery suction attachment 252c, and finally the battery is placed in the battery unloading mechanism 300 by moving the third battery suction attachment 252c.

[0042] The battery unloading mechanism 300 includes a unloading guide rail 310 and a third battery placement seat 320 slidably arranged on the unloading guide rail 310. Among them, the extending direction of the unloading guide rail 310 is parallel to the extending direction of the feeding guide rail 110. The unloading guide rail 310 and the feeding guide rail 110 are respectively located at both ends of the first conveying guide rail 211, and the third conveying guide rail 241 is located between the first conveying guide rail 211 and the unloading guide rail 310 in the battery unloading mechanism 300.

[0043] Two third battery placement seats 320 are arranged on the unloading guide rail 310. Correspondingly, two seventh battery suction attachments 442 are fixedly arranged at the end of the second handling manipulator 441, so that the second handling manipulator 441 can adsorb the batteries on the two third battery placement seats 320 at the same time each time and place them in the tray in the battery blanking assembly 420. It should be noted that the two third battery placement seats 320 are also respectively driven by two translation driving devices, so that the two third battery placement seats 320 can move along the unloading guide rail 310 to the blanking positions of the two groups of battery detection mechanisms 200, so that the two groups of battery detection mechanisms 200 can blank at the same time.

[0044] Preferably, to ensure the stability of the battery on the first battery placement seat 120, the second battery placement seat 214, the third battery placement seat 320, and the fourth battery placement seat 243, and to prevent the position of the battery from shifting when the above-mentioned battery placement seats move, a number of negative pressure adsorption holes for adsorbing the battery are provided on the upper end surfaces of the above-mentioned battery placement seats.

[0045] It should be noted that the above-mentioned first sliding seat 233a, second sliding seat 253a, and third sliding seat 254a are also driven by a driving electric cylinder or other translation driving devices, realizing the full automation of the battery detection device.

[0046] The embodiment of the present application also provides a battery detection method, which is based on the above-mentioned battery detection device. The battery detection method specifically includes the following steps: Step S101: The battery loading component 410 transports the tray stack containing the battery to be detected to the loading station.

[0047] Step S102: The first handling robot 431 adsorbs two batteries to be detected from the topmost tray and transports them to the first battery placement seat 120 on the feeding guide rail 110.

[0048] Step S103: The two first battery placement seats 120 move along the feeding guide rail 110 to the positions directly below the two first lifting seats 232a respectively.

[0049] Step S104: In any one of the battery detection mechanisms 200, the first battery picking device 230 moves the battery to be detected on the first battery placement seat 120 to one of the second battery placement seats 214. The second battery placement seat 214 moves along a preset displacement path, and when it moves to the position directly below the CCD detection device 221, the CCD detection device 221 takes pictures and detects the battery. After that, the second battery placement seat 214 continues to move along the preset displacement path to the picking station of the second picking device 250. The second picking device moves the battery on the second battery placement seat 214 to the thickness detection component 240, and the thickness detection component 240 detects the thickness of the battery. After the detection is completed, the battery is moved to the third battery placement seat 320 on the unloading guide rail 310. At the same time, after the battery on the first battery placement seat 120 is taken away, the two first battery placement seats 120 are reset to the initial position. The first handling robot 431 transports the battery to be detected to the first battery placement seat 120 again, and the first battery placement seats 120 move along the feeding guide rail 110 to the positions directly below the two first lifting seats 232a respectively. The first battery picking device 230 moves the battery to be detected on the first battery placement seat 120 to the other second battery placement seat 214, so that the two second battery placement seats 214 drive the battery to be detected alternately in a cycle.

[0050] Step S105: The two third battery placement seats 320 move along the unloading guide rail 310 to the picking station of the second handling robot 441, and the third handling robot moves the batteries on the two third battery placement seats 320 to the trays in the battery unloading assembly 420.

[0051] In addition, it should be noted that after all the batteries to be detected in the uppermost tray in the battery loading assembly 410 are taken out, the tray handling assembly 460 transports the empty tray to the battery unloading assembly 420. After that, when all the batteries to be detected in the uppermost tray in the battery loading assembly 410 are taken out and the tray in the battery unloading assembly 420 is not full, the tray handling assembly 460 transports the empty tray in the uppermost layer of the battery loading assembly 410 to the buffer rack 451, and transports the empty tray in the buffer rack 451 to the battery unloading assembly 420 after the uppermost tray in the battery unloading assembly 420 is full.

[0052] Thus, the technical solution of this application is provided with two groups of battery detection mechanisms 200, and two first battery placement seats 120 are provided on the feeding guide rail 110. The two groups of battery detection mechanisms 200 can be loaded simultaneously, so that the two groups of battery detection mechanisms 200 can detect the batteries simultaneously, improving the detection efficiency of the batteries. At the same time, two groups of second battery placement seats 214 and the conveying guide rail of the second battery placement seats 214 are provided in the battery conveying assembly 210, and the CCD detection device 221 is located directly above a certain position in the displacement path of the two second battery placement seats 214. The two second battery placement seats 214 can alternately drive the batteries to move directly below the CCD detection device 221, thereby realizing continuous detection of the batteries and further improving the detection efficiency of the batteries.

[0053] In addition to the above embodiments, the present invention can also have other implementation manners; all technical solutions formed by equivalent replacement or equivalent transformation fall within the protection scope required by the present invention.

Claims

1. A battery detection device, characterized in that: Comprising: A battery feeding mechanism (100), including a feeding guide rail (110) and a first battery placement seat (120) slidably arranged on the feeding guide rail (110); A battery detection mechanism (200), including a battery conveying component (210) and a battery detection component (220). The battery conveying component (210) includes two first conveying guide rails (211) located on one side of the feeding guide rail (110). Both of the two first conveying guide rails (211) are perpendicular to the feeding guide rail (110) and are arranged in sequence along the extending direction of the feeding guide rail (110). A moving seat (212) is slidably arranged on the first conveying guide rail (211), and a second conveying guide rail (213) perpendicular to the first conveying guide rail (211) is fixedly arranged on the moving seat (212). A second battery placement seat (214) is slidably arranged on the second conveying guide rail (213). The battery detection component (220) includes a CCD detection device (221), and the CCD detection device (221) is located directly above a certain position in the displacement paths of the two second battery placement seats (214); And a battery discharging mechanism (300), including a discharging guide rail (310) and a third battery placement seat (320) slidably arranged on the discharging guide rail (310). The discharging guide rail (310) is parallel to the feeding guide rail (110), and the discharging guide rail (310) and the feeding guide rail (110) are respectively located at both ends of the first conveying guide rail (211).

2. The battery detection device according to claim 1, wherein: The CCD detection device (221) is fixedly installed above the first conveying guide rail (211) through a mounting bracket (222), and the horizontal distances between the CCD detection device (221) and the two first conveying guide rails (211) are equal; The battery detection mechanism (200) further includes a first battery picking device (230) for moving the battery to be detected on the first battery placement seat (120) to the second battery placement seat (214). The first battery picking device (230) includes a first mounting plate (231) fixedly installed on one side of the mounting bracket (222) adjacent to the feeding guide rail (110), a first lifting drive device (232) fixedly installed on the first mounting plate (231), a first lifting seat (232a) drivingly connected to the first lifting drive device (232), a first rotation drive device (232b) fixedly installed on the first lifting seat (232a), a first battery suction attachment (232c) drivingly connected to the first rotation drive device (232b), a first slide rail (233) fixedly installed on the first mounting plate (231), a first slide seat (233a) slidably arranged on the first slide rail (233), a second lifting drive device (233b) fixedly installed on the first slide seat (233a), a second lifting seat (233c) drivingly connected to the second lifting drive device (233b), a second rotation drive device (233d) fixedly installed on the second lifting seat (233c), and a second battery suction attachment (233e) drivingly connected to the second rotation drive device (233d). The first lifting seat (232a) and the feeding guide rail (110) are in the same vertical plane. The second lifting seat (233c) is located between the first lifting seat (232a) and the battery fixing seat. The extending direction of the first slide rail (233) is parallel to the extending direction of the first conveying guide rail (211). The rotation axes of the first rotation drive device (232b) and the second rotation drive device (233d) are both parallel to the extending direction of the feeding guide rail (110).

3. The battery detection device according to claim 2, wherein: The battery detection mechanism (200) further includes a thickness detection assembly (240) for detecting the thickness of the battery. The thickness detection assembly (240) includes a third conveying guide rail (241) perpendicular to the first conveying guide rail (211), a thickness detection pressure head (242) fixedly arranged at one end of the third conveying guide rail (241), and a fourth battery placement seat (243) slidably arranged on the third conveying guide rail (241). The third conveying guide rail (241) is located between the first conveying guide rail (211) and the discharging guide rail (310).

4. The battery detection device according to claim 3, wherein: The battery detection mechanism (200) further includes a second battery picking device (250) for moving the battery on the second battery placement seat (214) to the thickness detection assembly (240) for detection and moving the battery to the third battery placement seat (320) after the detection is completed. The second battery picking device (250) includes a second mounting plate (251), a third lifting drive device (252) fixedly mounted on the second mounting plate (251), a third lifting seat (252a) drivingly connected to the third lifting drive device (252), a third rotation drive device (252b) fixedly mounted on the third lifting seat (252a), a third battery suction attachment (252c) drivingly connected to the third rotation drive device (252b), a second slide rail (253) and a third slide rail (254) fixedly mounted on the second mounting plate (251), a second slide seat (253a) slidably disposed on the second slide rail (253), a third slide seat (254a) slidably disposed on the third slide rail (254), a fourth lifting drive device (253b) fixedly mounted on the second slide seat (253a), a fourth lifting seat (253c) drivingly connected to the fourth lifting drive device (253b), a fourth rotation drive device (253d) fixedly mounted on the fourth lifting seat (253c), a fourth battery suction attachment (253e) drivingly connected to the fourth rotation drive device (253d), a fifth lifting drive device (254b) fixedly mounted on the third slide seat (254a), a fifth lifting seat (254c) drivingly connected to the fifth lifting drive device (254b), a fifth rotation drive device (254d) fixedly mounted on the fifth lifting seat (254c), and a fifth battery suction attachment (254e) drivingly connected to the fifth rotation drive device (254d); The third lifting seat (252a) and the unloading guide rail (310) are located in the same vertical plane. The extending directions of the second slide rail (253) and the third slide rail (254) are parallel to the extending direction of the first conveying guide rail (211). The rotation axes of the third rotation drive device (252b), the fourth rotation drive device (253d), and the fifth rotation drive device (254d) are all parallel to the extending direction of the feeding guide rail (110).

5. The battery detection device according to claim 4, wherein: There are two sets of the battery detection mechanisms (200), and the two sets of the battery detection mechanisms (200) are arranged in sequence along the extending direction of the feeding guide rail (110); Two of the first battery placement seats (120) are slidably disposed on the feeding guide rail (110), and two of the third battery placement seats (320) are slidably disposed on the unloading guide rail (310).

6. The battery detection device according to claim 5, characterized in that: It further includes a battery loading and unloading mechanism (400). The battery loading and unloading mechanism (400) includes a battery loading component (410), a battery unloading component (420), a first battery handling component (430), and a second battery handling component (440); The battery loading component (410) includes a loading frame (411), a first lifting platform (412) disposed within the loading frame (411), a sixth lifting drive device for driving the lifting of the first lifting platform (412), and a feeding conveyor device (413) disposed within the loading frame (411) and for conveying the pallet stack to directly above the first lifting platform (412); The battery unloading component (420) includes an unloading frame (421), a second lifting platform (422) disposed within the unloading frame (421), a seventh lifting drive device for driving the lifting of the second lifting platform (422), and a discharging conveyor device (423) disposed within the unloading frame (421) and for conveying the pallet stack out of the unloading frame (421); The first battery handling component (430) includes a first handling robot (431) for handling the batteries in the pallet stack within the battery loading component (410) onto the first battery placement seat (120), and two sixth battery suction attachments (432) are fixedly provided at the lower end of the first handling robot (431); The second battery handling component (440) includes a second handling robot (441) for handling the batteries on the fourth battery placement seat (243) onto the pallet stack within the battery unloading component (420), and two seventh battery suction attachments (442) are fixedly provided at the lower end of the second handling robot (441).

7. The battery detection device according to claim 6, characterized in that: The battery loading and unloading mechanism (400) further includes a pallet buffer component (450) and a pallet handling component (460); The pallet buffer component (450) includes a buffer frame (451) located between the loading frame (411) and the unloading frame (421), a third lifting platform (452) disposed within the buffer frame (451), and an eighth lifting drive device for driving the lifting of the third lifting platform (452); The pallet handling component (460) includes a pallet handling bracket (461), a handling slide seat (462) slidably disposed on the pallet handling bracket (461), a ninth lifting drive device fixedly provided on the handling slide seat (462), and a pallet suction attachment (463) drivingly connected to the ninth lifting drive device. The length direction of the pallet handling bracket (461) is parallel to the extending direction of the first conveying guide rail (211), and the loading frame (411), the buffer frame (451), and the unloading frame (421) are arranged in sequence along the length direction of the pallet handling bracket (461).

8. The battery detection device according to claim 6, wherein: It further includes a photographing and positioning component for photographing and positioning the batteries adsorbed on the sixth battery suction attachments (432). The photographing and positioning component is fixedly provided on one side of the feeding guide rail (110), and the photographing and positioning component is directly below a certain position in the displacement path of the sixth battery suction attachments (432).

9. A battery detection method, based on the battery detection device according to claim 8, characterized in that: Including: The battery loading component (410) conveys the pallet stack containing the batteries to be detected to the loading station; The first handling robot (431) adsorbs two batteries to be detected from the topmost tray and transports them to the first battery placement seat (120) on the feeding guide rail (110). The two first battery placement seats (120) move along the feeding guide rail (110) respectively to directly below the two first lifting seats (232a). In any battery detection mechanism (200), the first battery picking device (230) moves the battery to be detected on the first battery placement seat (120) to one of the second battery placement seats (214). The second battery placement seat (214) moves along a preset displacement path. When it moves to directly below the CCD detection device (221), the CCD detection device (221) takes pictures of the battery for detection. After that, the second battery placement seat (214) continues to move along the preset displacement path to the picking station of the second battery picking device (250). The second picking device moves the battery on the second battery placement seat (214) to the thickness detection component (240). The thickness detection component (240) detects the thickness of the battery and moves the battery to the third battery placement seat (320) on the unloading guide rail (310) after the detection is completed. At the same time, after the battery on the first battery placement seat (120) is taken away, the two first battery placement seats (120) reset to the initial position. The first handling robot (431) transports the battery to be detected to the first battery placement seat (120) again, and the first battery placement seat (120) moves along the feeding guide rail (110) respectively to directly below the two first lifting seats (232a). The first battery picking device (230) moves the battery to be detected on the first battery placement seat (120) to the other second battery placement seat (214), so that the two second battery placement seats (214) alternately drive the battery to be detected in a cycle. The two third battery placement seats (320) move along the unloading guide rail (310) to the picking station of the second handling robot (441). The third handling robot moves the batteries on the two third battery placement seats (320) to the tray in the battery unloading component (420).

10. The battery detection method according to claim 9, characterized in that: It further includes: After all the batteries to be detected in the topmost tray in the battery loading component (410) are taken out, the tray handling component (460) transports the empty tray to the battery unloading component (420). After that, when all the batteries to be detected in the topmost tray in the battery loading component (410) are taken out and the tray in the battery unloading component (420) is not full, the tray handling component (460) transports the empty tray on the topmost layer in the battery loading component (410) to the buffer rack (451), and transports the empty tray in the buffer rack (451) to the battery unloading component (420) after the topmost tray in the battery unloading component (420) is full.