A bare battery cell testing and feeding device

Abstract

This invention provides a bare battery cell inspection and unloading device, comprising: a pallet conveying mechanism; multiple carrier pallets, each carrier pallet having multiple support parts for corresponding bare battery cells; an inspection mechanism having multiple inspection stations; an OK pairing module including a positioning component, a positioning power component, and multiple pairing platforms; and a conveying mechanism for clamping the bare battery cells and moving them between the inspection stations, the pairing platforms, and the support parts. Compared to existing technologies, the bare battery cell inspection and unloading device of this invention can output only fully loaded and empty carrier pallets, without outputting partially loaded carrier pallets. Subsequent processing steps only process the bare battery cells on the fully loaded carrier pallets, which improves subsequent processing efficiency, while empty carrier pallets can be discarded without affecting processing efficiency, thereby effectively improving battery cell production efficiency and reducing production costs.

Description

Technical Field

[0001] This invention relates to the field of battery cell manufacturing technology, specifically to a bare battery cell inspection and feeding device. Background Technology

[0002] Bare cells are battery cells without casings or packaging, directly exposing the internal structure of the battery and generally not usable directly. Current bare cell inspection processes typically involve a tray carrying one cell on a conveyor line for defect detection. Defect detection usually includes front and back appearance inspection, and tab inspection. If the bare cell passes inspection, it is conveyed to the next process (e.g., overmolding, casing) along with the tray. If the bare cell fails inspection, an NG (Not Acceptable) robot handles it and moves it to the NG unloading point, resulting in an empty tray being output from the conveyor line.

[0003] As cell production efficiency increases, the testing efficiency for individual bare cells can no longer match the current cell production efficiency, affecting subsequent processing efficiency. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings and deficiencies of the prior art and provide a bare cell inspection and feeding device.

[0005] One embodiment of the present invention provides a bare battery cell inspection and unloading device, comprising:

[0006] Pallet conveyor mechanism;

[0007] Several carrying pallets move along the conveying direction of the pallet conveying mechanism under the conveying of the pallet conveying mechanism, and the carrying pallets are provided with multiple carrying parts for corresponding carrying bare battery cells;

[0008] The testing facility has multiple testing stations for simultaneously testing bare battery cells at multiple testing stations;

[0009] OK pairing module includes a positioning component, a positioning power component and multiple pairing platforms. The pairing platform has a preset positioning area. The number of pairing platforms and the number of carrier parts are the same. The positioning component can move relative to the pairing platform under the drive of the positioning power component to drive the bare battery cell on the pairing platform to move to the corresponding positioning area.

[0010] A conveying mechanism is used to clamp bare battery cells and move them between the testing station, the pairing platform, and the carrier.

[0011] If the number of qualified bare cells detected by the testing mechanism is equal to the number of bearing sections of the carrying pallet, the handling mechanism will place the qualified bare cells on the bearing sections of the carrying pallet, and the pallet conveying mechanism will transport the fully loaded carrying pallet away.

[0012] If the number of qualified bare cells detected by the testing mechanism is less than the number of supporting parts of the carrying tray but greater than 0, the handling mechanism will place the qualified bare cells on the matching platform, and the tray conveying mechanism will transport the empty carrying tray away.

[0013] Once all the positioning areas of the pairing platforms have been filled with bare battery cells, the transport mechanism clamps all the bare battery cells on the pairing platforms onto the support portion of the carrier tray, and the tray conveying mechanism transports the fully loaded carrier tray away.

[0014] In some alternative implementations, the number of the testing station, the carrier, and the pairing platform are the same.

[0015] In some alternative implementations, the number of both the carrier and the pairing platform is two.

[0016] In some optional embodiments, the OK pairing module further includes an alignment and movement component, which is driven and connected to the pairing platform to drive different pairing platforms to move sequentially to the OK picking station. The conveying mechanism is used to clamp the bare battery cells on the pairing platform located at the OK picking station onto the support portion of the carrier tray.

[0017] In some optional embodiments, the positioning component includes a plurality of fixed positioning elements, a plurality of first movable positioning elements, and a plurality of second movable positioning elements. The fixed positioning elements and the first movable positioning elements are respectively disposed on two sides of the positioning area, and the second movable positioning elements are respectively disposed on the other two sides of the positioning area. The positioning power component is drivenly connected to the first movable positioning elements and the second movable positioning elements, and the first movable positioning elements and the second movable positioning elements move closer to or away from the positioning area under the drive of the positioning power component.

[0018] In some optional embodiments, the positioning power assembly includes a first translation drive assembly and a plurality of second translation drive assemblies, wherein the first translation drive assembly is driven connected to a plurality of first movable positioning elements, and the second translation drive assembly is driven connected to the second movable positioning elements.

[0019] In some optional embodiments, the bare cell inspection and unloading device further includes an NG unloading mechanism, the conveying mechanism being capable of moving the bare cell between the inspection station, the mating platform, the carrier and the NG unloading mechanism;

[0020] When the testing mechanism detects a defective bare cell, the transport mechanism clamps the defective bare cell located at the testing station to the NG unloading mechanism.

[0021] In some optional embodiments, the NG unloading mechanism includes an NG lifting assembly, a first NG transport assembly, and a plurality of second NG transport assemblies. The NG lifting assembly is driven to the first NG transport assembly. The plurality of second NG transport assemblies are arranged on one side of the first NG transport assembly and are arranged sequentially from top to bottom. After the first NG transport assembly is lifted and lowered to the side of any second NG transport assembly under the drive of the NG lifting assembly, the transport end point of the first NG transport assembly is connected to the transport start point of the second NG transport assembly.

[0022] In some optional embodiments, the second NG transport assembly is further provided with a buffer limit band, which can restrict or release the bare cells located on the second NG transport assembly, and a buffer transport space is formed between the buffer limit band and the transport starting point of the second NG transport assembly.

[0023] In some optional embodiments, the pallet conveying mechanism can sequentially transport the carrying pallet to the inspection loading station and the standby station, wherein the inspection loading station, the inspection mechanism, the standby station, the NG unloading mechanism, and the OK pairing module are arranged sequentially along the conveying direction of the pallet conveying mechanism.

[0024] Compared with the prior art, the bare cell inspection and unloading device of the present invention can output only fully loaded and empty carrier trays, and not output partially loaded carrier trays. Subsequent processing steps process the bare cells on the fully loaded carrier trays, which can improve the efficiency of subsequent processing. The empty carrier trays can be discarded, so it will not affect the processing efficiency, thereby effectively improving the production efficiency of the cells and reducing the production cost.

[0025] To provide a clearer understanding of the present invention, the specific embodiments of the present invention will be described below in conjunction with the accompanying drawings. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the bare cell inspection and feeding device according to an embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of the structure of a support tray according to an embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram of the OK pairing module according to an embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of the NG feeding mechanism according to an embodiment of the present invention.

[0030] Explanation of reference numerals in the attached figures:

[0031] 10. Pallet conveyor mechanism; 11. Inspection and loading station; 12. Standby station;

[0032] 20. Load-bearing pallet; 21. Load-bearing section;

[0033] 30. Testing institutions;

[0034] 40. OK pairing module; 41. Positioning component; 411. Fixed positioning component; 412. First movable positioning component; 413. Second movable positioning component; 42. Positioning power component; 421. First translation drive component; 422. Second translation drive component; 43. Pairing platform; 44. Alignment movement component;

[0035] 50. Handling mechanism;

[0036] 60. Rack;

[0037] 60. NG unloading mechanism; 61. NG lifting assembly; 62. First NG transport assembly; 63. Second NG transport assembly; 631. Buffer limit belt; 64. NG unloading conveyor assembly. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. In the description of the present invention, unless otherwise stated, "a plurality of" means two or more, and "a number" means one or more. Furthermore, unless otherwise stated, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features.

[0039] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0040] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0041] In the description of this invention, references to terms such as "one embodiment," "some alternative implementations," or "some optional embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0042] To improve the efficiency of bare battery cell inspection and processing, the existing inspection device uses a tray to support two cells, and the inspection mechanism inspects both cells simultaneously. However, when one qualified cell and one unqualified cell are detected in a tray, if the existing unloading method is used, the NG robot will pick up the unqualified bare cell and unload it at the NG unloading point, while the qualified bare cell will be placed directly back into the tray. This results in the tray output from the conveyor line only supporting one qualified bare cell, which does not help improve the efficiency of subsequent processing steps and will still affect the efficiency of subsequent processing.

[0043] This invention can output only fully loaded and empty carrier trays, without outputting partially loaded carrier trays. Subsequent processing steps all process the bare cells on the fully loaded carrier trays, which can improve the efficiency of subsequent processing. The empty carrier trays can be discarded, so it will not affect the processing efficiency. This effectively improves the production efficiency of the cells and reduces the production cost.

[0044] Please see Figures 1 to 3One embodiment of the present invention provides a bare battery cell inspection and unloading device, comprising:

[0045] Pallet conveyor mechanism 10;

[0046] Several carrying pallets 20 move along the conveying direction of the pallet conveying mechanism 10 under the conveying of the pallet conveying mechanism 10. The carrying pallets 20 are provided with multiple carrying parts 21 for corresponding carrying bare battery cells.

[0047] The testing facility 30 has multiple testing stations for simultaneously testing bare cells at multiple testing stations;

[0048] OK pairing module 40 includes positioning component 41, positioning power component 42 and multiple pairing platforms 43. Positioning areas are preset on the pairing platform 43. The number of pairing platforms 43 is the same as that of the carrier 21. The positioning component 41 can move relative to the pairing platform 43 under the drive of the positioning power component 42 to drive the bare cells on the pairing platform 43 to move to the corresponding positioning area.

[0049] The conveying mechanism 50 is used to clamp the bare battery cell and move it between the testing station, the pairing platform 43 and the carrier 21.

[0050] After the multiple bare cells of each carrier tray 20 are inspected by the inspection agency 30, three inspection scenarios will occur. The first scenario is that the number of qualified bare cells is equal to the number of carrier parts 21 of the carrier tray 20. The second scenario is that the number of qualified bare cells is less than the number of carrier parts 21 of the carrier tray 20 but greater than 0. The third scenario is that the number of qualified bare cells is 0.

[0051] If the first detection scenario occurs, that is, if the number of qualified bare cells detected by the detection mechanism 30 is equal to the number of carrier parts 21 of the carrier tray 20, the handling mechanism 50 will place the qualified bare cells on the carrier parts 21 of the carrier tray 20, and the tray conveying mechanism 10 will transport the fully loaded carrier tray 20 away. The fully loaded carrier tray 20 will be transported to the next production process for subsequent processing.

[0052] If the second detection scenario occurs, and the number of qualified bare battery cells detected by the detection mechanism 30 is less than the number of carrier sections 21 on the carrier tray 20 but greater than 0, the handling mechanism 50 places the qualified bare battery cells onto the matching platform 43, and the tray conveying mechanism 10 transports the empty carrier tray 20 away. The empty carrier tray 20 can be recycled before being transported to the next production process by the tray conveying mechanism 10. The empty carrier tray 20 can be recycled manually, or by using sensors to detect the presence of battery cells on the carrier tray 20, and then using a cylinder to drive a pusher plate to push the empty carrier tray 20 out of the tray conveying mechanism 10; this is not a limited example.

[0053] After multiple occurrences of the second detection scenario, resulting in bare battery cells being placed in the positioning areas of all pairing platforms 43, the handling mechanism 50 clamps all the bare battery cells on the pairing platforms 43 onto the carrying portion 21 of the carrying tray 20, and the tray conveying mechanism 10 transports the fully loaded carrying tray 20 away.

[0054] In the event of a third detection scenario where no qualified bare battery cells are found, the pallet conveyor 10 will also transport the empty carrier pallet 20 away. The empty carrier pallet 20 can be recycled before being transported by the pallet conveyor 10 to the next production process.

[0055] In summary, the pallet conveying mechanism 10 will only transport empty or fully loaded pallets 20 to the next production process, and will not transport pallets 20 with only part of the carrying section 21 carrying bare battery cells to the next production process. Therefore, subsequent production processes are all carried out on fully loaded pallets 20, which can effectively improve production efficiency.

[0056] It should be noted that a fully loaded carrier tray 20 means that all carrier parts 21 on the same carrier tray 20 are carrying bare cells, while an empty carrier tray 20 means that none of the carrier parts 21 on the same carrier tray 20 are carrying bare cells.

[0057] In this embodiment, the bare cell testing and unloading device also includes a frame 60, and a tray conveying mechanism 10, a carrying tray 20, a testing mechanism 30 and an OK pairing module 40 are all mounted on the frame 60.

[0058] In this embodiment, the bare cell testing and unloading device also includes a controller, which is signal-connected to the tray conveying mechanism 10, the testing mechanism 30 and the positioning power component 42, so that the staff can operate each mechanism and component.

[0059] The specific structure of the pallet conveying mechanism 10 can be selected according to actual needs. For example, the pallet conveying mechanism 10 can adopt a mesh belt conveying mechanism, a roller conveying mechanism, a chain plate conveying mechanism, or a belt conveying mechanism, etc., without limitation.

[0060] In some alternative embodiments, the number of carrier units 21 and mating platforms 43 is two. Of course, the number of carrier units 21 and mating platforms 43 can also be increased, and is not limited to two.

[0061] The testing agency 30 can perform various tests on bare battery cells according to actual needs. For example, the testing agency 30 can perform front and back appearance inspection, bottom appearance inspection, and tab inspection on bare battery cells, etc. There are no restrictions on the testing items. The structure and principle of the testing agency 30 are well known to those skilled in the art and will not be described in detail here.

[0062] In some alternative implementations, the number of testing stations, carrier units 21, and pairing platforms 43 is the same. Of course, in other implementations, the number of testing stations can be N times the number of carrier units 21, where N is greater than 1. The purpose of N being greater than 1 is to allow for the addition of multiple testing stations when the testing speed of the testing mechanism 30 is slow, enabling simultaneous testing of bare cells from multiple carrier trays 20. For example, in one implementation, the number of carrier units 21 and pairing platforms 43 is 2 each, and N is 2, meaning the number of testing stations is 4. After bare cells from two carrier trays 20 are placed into the testing stations, one carrier tray 20 can leave first, while the other carrier tray 20 remains ready. After the two bare cells are tested, depending on the testing results, the waiting carrier tray 20 may be allowed to leave or left only after being fully loaded with bare cells. Then, the bare cells from the next carrier tray 20 are placed into an empty testing station for testing, while the carrier tray 20 from which the bare cells were removed remains ready.

[0063] In some optional embodiments, the OK pairing module 40 further includes an alignment and movement component 44, which is drivenly connected to the pairing platform 43. This component drives different pairing platforms 43 to move sequentially to the OK picking station. The transport mechanism 50 clamps the bare battery cells on the pairing platform 43 located at the OK picking station onto the support portion 21 of the transport tray 20. This allows the transport mechanism 50 to move only to the OK picking station each time, while the alignment and movement component 44 moves the pairing platform 43 to the OK picking station for the transport mechanism 50 to remove the bare battery cells. This reduces the amount of movement required by the transport mechanism and lowers the degree of freedom of movement. The specific structure of the alignment and movement component 44 can be selected according to actual needs. For example, the alignment and movement component 44 can be a screw drive assembly, a rotary motor translation drive assembly, a belt translation drive assembly, a cylinder translation drive assembly, or a linear motor translation drive assembly.

[0064] In some optional embodiments, the positioning component 41 includes multiple fixed positioning elements 411, multiple first movable positioning elements 412, and multiple second movable positioning elements 413. Fixed positioning elements 411 and first movable positioning elements 412 are respectively provided on both sides of the positioning area, and second movable positioning elements 413 are respectively provided on the other two sides of the positioning area. The positioning power component 42 is drivenly connected to the first movable positioning elements 412 and second movable positioning elements 413. The first movable positioning elements 412 and second movable positioning elements 413 move closer to or further away from the positioning area under the drive of the positioning power component 42. Each positioning area is positioned by one fixed positioning element 411, one first movable positioning element 412, and two second movable positioning elements 413, ensuring accurate positioning of all four sides of the bare battery cell with high precision. Of course, the positioning component 41 can also adopt other suitable positioning structures, and is not limited to this example.

[0065] The bare battery cell can be positioned immediately after being placed on the pairing platform 43, or it can be positioned uniformly after all the pairing platforms 43 have been placed on them. In some optional embodiments, the positioning power assembly 42 includes a first translation drive assembly 421 and multiple second translation drive assemblies 422. The first translation drive assembly 421 is drivenly connected to multiple first movable positioning members 412, and the second translation drive assembly 422 is drivenly connected to second movable positioning members 413. The first translation drive assembly 421 can drive multiple first movable positioning members 412 to move synchronously, thereby simplifying the structure for positioning the bare battery cell. In this embodiment, after the bare battery cell is placed on all the pairing platforms 43, the first translation drive assembly 421 drives multiple first movable positioning members 412 to move synchronously closer to the positioning area to push the bare battery cell toward the fixed positioning member 411. Each second translation drive assembly 422 correspondingly drives the second movable positioning member 413 to move, so that the second movable positioning members 413 located on both sides of the same positioning area move closer to each other until they clamp the bare battery cell, thereby making the bare battery cell stably and accurately positioned in the positioning area. The specific structure of the first translation drive assembly 421 and the second translation drive assembly 422 can be selected according to actual needs. For example, the first translation drive assembly 421 and the second translation drive assembly 422 can be a lead screw drive assembly, a rotary motor translation drive assembly, a belt translation drive assembly, a cylinder translation drive assembly or a linear motor translation drive assembly.

[0066] In some optional embodiments, the bare cell inspection and unloading device further includes an NG unloading mechanism 60, and a conveying mechanism 50 capable of moving the bare cells between the inspection station, the pairing platform 43, the carrier 21, and the NG unloading mechanism 60. When a second or third inspection situation occurs, i.e., when the inspection mechanism 30 detects a defective bare cell, the conveying mechanism 50 clamps the defective bare cell located at the inspection station to the NG unloading mechanism 60, which then transports the defective bare cell away. Of course, in other embodiments, other unloading and processing methods can be used for defective bare cells, and this example is not limited to this one.

[0067] Please see Figure 4 In some optional embodiments, the NG unloading mechanism 60 includes an NG lifting assembly 61, a first NG transport assembly 62, and a plurality of second NG transport assemblies 63. The NG lifting assembly 61 is driven to be connected to the first NG transport assembly 62. The plurality of second NG transport assemblies 63 are arranged on one side of the first NG transport assembly 62 and are arranged sequentially from top to bottom. After the first NG transport assembly 62 is lifted and lowered to the side of any second NG transport assembly 63 under the drive of the NG lifting assembly 61, the transport end point of the first NG transport assembly 62 is connected to the transport start point of the second NG transport assembly 63.

[0068] Since there are multiple types of non-conforming bare cells detected by the testing agency 30, each second NG transport component 63 can buffer bare cells with different non-conforming conditions. The NG lifting component 61 then transports the corresponding bare cell to one side of the corresponding second NG transport component 63 according to the non-conforming condition of the bare cell. Then, the first NG transport component 62 transports the bare cell to the second NG transport component 63.

[0069] The transport endpoint of the first NG transport assembly 62 refers to the final location to which the first NG transport assembly 62 can transport the bare battery cell, and the transport starting point of the second NG transport assembly 63 refers to the starting point to which the second NG transport assembly 63 can transport the bare battery cell. The connection between the transport endpoint of the first NG transport assembly 62 and the transport starting point of the second NG transport assembly 63 does not necessarily mean that the first NG transport assembly 62 and the second NG transport assembly 63 are in physical contact; it only requires that the bare battery cell arriving at the transport endpoint of the first NG transport assembly 62 can be transported by the second NG transport assembly 63 starting from its transport starting point.

[0070] The specific structure of the NG lifting assembly 61 can be selected according to the actual needs. For example, the NG lifting assembly 61 can adopt a screw lifting drive assembly, a rotary motor translation lifting drive assembly, a belt translation lifting drive assembly, a cylinder translation lifting drive assembly, or a linear motor translation lifting drive assembly.

[0071] In some optional embodiments, the second NG transport component 63 is further provided with a buffer limit band 631. The buffer limit band 631 can restrict or release the bare cells located on the second NG transport component 63. A buffer transport space is formed between the buffer limit band 631 and the transport starting point of the second NG transport component 63. After the bare cells are transported to the second NG transport component 63 by the first NG transport component 62, the second NG transport component 63 transports the bare cells until they are blocked by the buffer limit band 631. Then the next bare cell is received by the bare cell blocked by the buffer limit band 631, so that multiple bare cells are buffered on the second NG transport component, making it convenient to observe the number of bare cells on each second NG transport component 63, and thus intuitively compare the number of bare cells in different non-conforming situations.

[0072] In some optional embodiments, the pallet conveying mechanism 10 can sequentially transport the carrying pallet 20 to the inspection and loading station 11 and the standby station 12. The inspection and loading station 11, the inspection mechanism 30, the standby station 12, the NG unloading mechanism 60, and the OK pairing module 40 are arranged sequentially along the conveying direction of the pallet conveying mechanism 10, thereby rationally arranging the positions of each station and mechanism. The pallet conveying mechanism 10 transports the carrying pallet 20 to the inspection and loading station 11, the handling mechanism 50 moves the bare cells on the carrying pallet 20 to the inspection station, and the pallet conveying mechanism 10 transports the carrying pallet 20 to the standby station 12. According to the inspection status of the inspection mechanism 30, the handling mechanism 50 moves the bare cells, and the pallet conveying mechanism 10 moves the empty or fully loaded carrying pallet 20 away from the standby station 12.

[0073] In this embodiment, the NG unloading mechanism 60 further includes an NG unloading conveying assembly 64. The NG lifting assembly 61 can drive the first NG transport assembly 62 to rise and fall so that the transport starting point of the first NG transport assembly 62 is connected to the transport ending point of the NG unloading conveying assembly 64. The handling mechanism 50 places the unqualified bare cells on the NG unloading conveying assembly 64, and then the NG unloading conveying assembly 64 transports the bare cells to the first NG transport assembly 62. Of course, in other embodiments, the handling mechanism 50 can also directly place the unqualified bare cells on the first NG transport assembly 62.

[0074] In this embodiment, the bare battery cell inspection and unloading device includes multiple pallet conveying mechanisms 10, multiple inspection mechanisms 30, multiple OK pairing modules 40, and multiple handling mechanisms 50. The pallet conveying mechanisms 10, inspection mechanisms 30, OK pairing modules 40, and handling mechanisms 50 are arranged in a one-to-one correspondence. The multiple pallet conveying mechanisms 10 are arranged side-by-side, and each pallet conveying mechanism 10 can transport a carrying pallet 20. The inspection mechanism 30 is responsible for inspecting the bare battery cells on the carrying pallet 20 on the pallet conveying mechanism 10. The OK pairing module 40 is responsible for pre-storing the bare battery cells on the carrying pallet 20 on the pallet conveying mechanism 10. The handling mechanism 50 is responsible for transferring the bare battery cells on the carrying pallet 20 on the same pallet conveying mechanism 10. Furthermore, to simplify the structure, the NG unloading conveying assembly 64 extends through multiple pallet conveying mechanisms 10. The unqualified bare battery cells detected by each inspection mechanism 30 are placed on the NG unloading conveying assembly 64 and uniformly transported by the NG unloading conveying assembly 64 to the first NG transport assembly 62, thus requiring only one NG unloading mechanism 60.

[0075] The handling mechanism 50 includes a multi-axis translation drive assembly and several clamping assemblies. The multi-axis translation drive assembly drives the clamping assemblies to move in multiple directions, and the clamping assemblies are used to clamp bare battery cells. In this embodiment, the handling mechanism 50 includes a first clamping assembly, a second clamping assembly, and a third clamping assembly. The multi-axis translation drive assembly can drive the first clamping assembly to move between the inspection station and the inspection loading station 11, while the multi-axis translation drive assembly can drive the second clamping assembly to move between the inspection station, the standby station 12, and the NG unloading conveyor assembly 64. The multi-axis translation drive assembly can drive the third clamping assembly to move between the standby station 12, the NG unloading conveyor assembly 64, and the positioning area. The specific structure of the multi-axis translation drive assembly can be selected according to actual needs. For example, in this embodiment, since the OK pairing module 40 has an alignment movement component 44, the multi-axis translation drive assembly can move in one less direction. The multi-axis translation drive assembly includes a first translation module and three second translation modules. The first translation module can drive each of the second translation modules to move along the conveying direction of the pallet conveying mechanism 10. The three second translation modules are correspondingly connected to the first clamping component, the second clamping component and the third clamping component, driving the first clamping component, the second clamping component and the third clamping component to rise and fall. The alignment movement component 44 drives the pairing platform 43 to move in a direction perpendicular to the conveying direction of the pallet conveying mechanism 10.

[0076] The specific structure of the first translation module and the three second translation modules can be selected according to actual needs. For example, the first translation module and the second translation module can be a lead screw translation module, a rotary motor translation module, a belt translation module, a cylinder translation module, or a linear motor translation module.

[0077] The specific structures of the first NG transport component 62, the second NG transport component 63, and the NG unloading conveyor component 64 can be selected according to actual needs. For example, the first NG transport component 62, the second NG transport component 63, and the NG unloading conveyor component 64 can be mesh belt conveyor components, roller conveyor components, chain plate conveyor components, or belt conveyor components, etc., without limitation.

[0078] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bare battery cell inspection and unloading device, characterized in that, include: Pallet conveyor mechanism; Several carrying pallets move along the conveying direction of the pallet conveying mechanism under the conveying of the pallet conveying mechanism, and the carrying pallets are provided with multiple carrying parts for corresponding carrying bare battery cells; The testing facility has multiple testing stations for simultaneously testing bare battery cells at multiple testing stations; OK pairing module includes a positioning component, a positioning power component and multiple pairing platforms. The pairing platform has a preset positioning area. The number of pairing platforms and the number of carrier parts are the same. The positioning component can move relative to the pairing platform under the drive of the positioning power component to drive the bare battery cell on the pairing platform to move to the corresponding positioning area. A conveying mechanism is used to clamp bare battery cells and move them between the testing station, the pairing platform, and the carrier. If the number of qualified bare cells detected by the testing mechanism is equal to the number of bearing sections of the carrying pallet, the handling mechanism will place the qualified bare cells on the bearing sections of the carrying pallet, and the pallet conveying mechanism will transport the fully loaded carrying pallet away. If the number of qualified bare cells detected by the testing mechanism is less than the number of supporting parts of the carrying tray but greater than 0, the handling mechanism will place the qualified bare cells on the matching platform, and the tray conveying mechanism will transport the empty carrying tray away. Once all the positioning areas of the pairing platforms have been filled with bare battery cells, the transport mechanism clamps all the bare battery cells on the pairing platforms onto the support portion of the carrier tray, and the tray conveying mechanism transports the fully loaded carrier tray away. The bare cell inspection and unloading device also includes an NG unloading mechanism, and the conveying mechanism is capable of moving the bare cell between the inspection station, the pairing platform, the carrier and the NG unloading mechanism; When the testing mechanism detects a defective bare cell, the conveying mechanism clamps the defective bare cell located at the testing station to the NG unloading mechanism; The NG unloading mechanism includes an NG lifting component, a first NG transport component, and multiple second NG transport components. The NG lifting component is driven to the first NG transport component. The multiple second NG transport components are arranged on one side of the first NG transport component and are arranged sequentially from top to bottom. After the first NG transport component is lifted and lowered to the side of any second NG transport component under the drive of the NG lifting component, the transport end point of the first NG transport component is connected to the transport start point of the second NG transport component. The second NG transport component is also provided with a buffer limit band, which can restrict or release the bare cells located on the second NG transport component, and a buffer transport space is formed between the buffer limit band and the transport starting point of the second NG transport component.

2. The bare cell inspection and unloading device according to claim 1, characterized in that: The number of the testing station, the carrier, and the pairing platform are the same.

3. The bare cell inspection and unloading device according to claim 1, characterized in that: The number of the carrier and the number of the pairing platform are both 2.

4. The bare cell inspection and unloading device according to claim 1, characterized in that: The OK pairing module also includes an alignment and movement component, which is connected to the pairing platform drive and is used to drive different pairing platforms to move sequentially to the OK picking station. The conveying mechanism is used to clamp the bare battery cells on the pairing platform located at the OK picking station onto the support part of the carrying tray.

5. The bare cell inspection and unloading device according to claim 1, characterized in that: The positioning component includes multiple fixed positioning elements, multiple first movable positioning elements, and multiple second movable positioning elements. The fixed positioning elements and the first movable positioning elements are respectively arranged on both sides of the positioning area, and the second movable positioning elements are respectively arranged on the other two sides of the positioning area. The positioning power component is drivenly connected to the first movable positioning elements and the second movable positioning elements. The first movable positioning elements and the second movable positioning elements move closer to or away from the positioning area under the drive of the positioning power component.

6. The bare cell inspection and unloading device according to claim 5, characterized in that: The positioning power assembly includes a first translation drive assembly and a plurality of second translation drive assemblies. The first translation drive assembly is driven to be connected to a plurality of first movable positioning elements, and the second translation drive assembly is driven to be connected to the second movable positioning elements.

7. The bare cell inspection and unloading device according to claim 1, characterized in that: The pallet conveying mechanism can transport the carrying pallet sequentially to the inspection and loading station and the standby station. The inspection and loading station, the inspection mechanism, the standby station, the NG unloading mechanism, and the OK pairing module are arranged sequentially along the conveying direction of the pallet conveying mechanism.

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