Battery four-claw matching device and process

Abstract

The application discloses a battery four-claw pairing device and process, which comprises at least two groups of first trays for placing to-be-detected battery cells and at least one group of second trays for placing to-be-retested battery cells; a four-claw clamp robot with a detection battery cell type is arranged on one side of the first tray and the second tray; a first battery cell temporary storage table and a second battery cell temporary storage table are arranged around the four-claw clamp robot, the first battery cell temporary storage table is used for placing and pairing a first battery cell with complete functions, and the second battery cell temporary storage table is used for placing and pairing a second battery cell with defects. The process can quickly disassemble the tray, grab the battery cell and adjust the battery cell on the battery cell buffer table, so that the battery cell of a specified type can be placed on a specified pull belt channel and classified, thereby achieving the effects of fast classification and fast conveying, and the production capacity of battery cell disassembly and sorting can reach the requirement of 15ppm production capacity.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery processing, and in particular to a battery four-claw pairing device and process. BACKGROUND

[0002] During the production of lithium batteries, the quality of the produced battery cells is not uniform due to various factors, including directly usable battery cells, scrap battery cells that cannot be used, and battery cells that need to be retested and are pending. After battery production, the battery cells need to be classified into different pull belt channels for classification. The existing battery cell classification generally uses a two-claw clamp robot that can automatically disassemble the tray to classify the batteries in the clamp tray into the specified type of pull belt channel after disassembling the tray. However, the existing two-claw pairing and clamping process cannot meet the production capacity (15ppm) requirement of a large number of battery cell disassembly and classification.

[0003] The existing method and system for optimizing the process flow of battery cell sorting, with the publication number CN109513641A, judges the state of the battery cell and executes different process flows. Compared with the prior art, if the problem battery cell needs to execute the sorting process flow, the problem battery cell is taken out and accumulated to a preset number for unified operation and processing, avoiding the problem of low production efficiency caused by processing the problem battery cell one by one, ensuring the accuracy and efficiency in the battery production process. Although this method and system can improve the efficiency of sorting to some extent, it still cannot effectively meet the demand of 15ppm production capacity. SUMMARY

[0004] The purpose of the present application is to solve the problems existing in the prior art and to provide a battery four-claw pairing device and process.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical solution: a battery four-claw pairing device, comprising at least two groups of first trays for placing battery cells to be detected and at least one group of second trays for placing battery cells to be retested;

[0006] A four-claw clamp robot for detecting battery cell types is arranged on one side of the first tray and the second tray;

[0007] A first battery cell temporary storage station and a second battery cell temporary storage station are arranged around the four-claw clamp robot. The first battery cell temporary storage station is used to place and pair first battery cells with complete functions, and the second battery cell temporary storage station is used to place and pair second battery cells with defects;

[0008] A first pull belt channel is arranged on one side of the first battery cell temporary storage station, and the first pull belt channel is used to place and transport four groups of first battery cells;

[0009] A second pull tape channel is arranged on one side of the second temporary storage platform for the second battery cell.

[0010] As a further description of the above technical solution, the second pull tape channel includes a second pull tape channel one and a second pull tape channel two, and the second battery cell includes an NG-E99 battery cell or an NG non-E99 battery cell.

[0011] As a further description of the above technical solution, the second tray is a retest tray, and the four-jaw clamp robot places a retest battery cell on the first temporary storage platform or the second temporary storage platform on the retest tray.

[0012] As a further description of the above technical solution, the first pull tape channel is a four-channel pull tape, and the second pull tape channel is also a four-channel pull tape.

[0013] As a further description of the above technical solution, the first temporary storage platform and the second temporary storage platform each include five battery cell channels.

[0014] As a further description of the above technical solution, a first channel group is composed of a first channel and a second channel in the battery cell channels, and a second channel group is composed of a third channel, a fourth channel and a fifth channel in the battery cell channels, and the interval distance between the first channel group and the second channel group is greater than the distance of two battery cells.

[0015] A four-jaw pairing process for a battery, and the process steps specifically include:

[0016] S1, a plurality of first trays and at least one second tray are sequentially moved to one side of a four-jaw clamp robot, and tray disassembly starts;

[0017] S2, the four-jaw clamp robot grasps four battery cells at a time and identifies the type of the grasped battery cells; if the four grasped battery cells are all first battery cells, S3 is executed; if the four grasped battery cells are all retest battery cells, S4 is executed; if the four grasped battery cells include a first battery cell, a second battery cell and a retest battery cell, S5 is executed;

[0018] S3, the four-jaw clamp robot grasps four first battery cells and places them on a first pull tape channel;

[0019] S4, the four-jaw clamp robot grasps four retest battery cells and places them on a retest tray;

[0020] S5, the first gripper and the second gripper of the four-jaw clamp robot grab two battery cells and place them on the battery cell buffer table, and determine whether the current battery cell buffer table is combined with four first battery cells or four retest battery cells; if combined with four first battery cells, execute S3; if combined with four retest battery cells, execute S4;

[0021] S6, repeat the above steps until all battery cell classification is completed.

[0022] As a further description of the above technical solution, in S5, if the battery cells gripped by the first gripper and the second gripper are the first battery cells and the second battery cells, the four-jaw clamp robot adjusts the positions of the first battery cells and the second battery cells, so that four first battery cells are paired or two second battery cells of the same type are paired, and then the four-jaw clamp robot places the first battery cells on the first pull belt channel or places the second battery cells of the same type on the second pull belt channel.

[0023] As a further description of the above technical solution, in S5, before the first gripper and the second gripper of the four-jaw clamp robot place the battery cells on the corresponding buffer table, the four-jaw clamp robot determines whether there is a battery cell at the battery cell channel of the battery cell to be placed or the type of the battery cell occupying the position.

[0024] The present application has the following beneficial effects:

[0025] 1. The process in the present application quickly disassembles the tray, grips the battery cells, and adjusts them on the battery cell buffer table, so that the battery cells of a specified type can be placed on a specified pull belt channel and classified, achieving the effect of rapid classification and rapid delivery, and the production capacity of battery cell disassembly and sorting can meet the demand of 15ppm production capacity. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 A device for battery four-jaw pairing according to the present application is shown in the figure;

[0027] Figure 2 A process flow chart of the battery four-jaw pairing device according to the present application is shown in the figure;

[0028] LEGEND:

[0029] 1. first tray; 2. second tray; 3. four-jaw clamp robot; 4. first battery cell temporary storage table; 5. second battery cell temporary storage table; 6. first pull belt channel; 7. second pull belt channel; 71. first second pull belt channel; 72. second second pull belt channel; 8. battery cell channel. DETAILED DESCRIPTION

[0030] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0031] With reference to Figure 1 In an embodiment, the present application provides a battery four-jaw matching device, which comprises at least two groups of first trays 1 for placing battery cells to be detected and at least one group of second trays 2 for placing battery cells to be retested. In this embodiment, two first trays 1 are sequentially arranged along the conveying direction of the production line, and a second tray 2 is arranged immediately behind the two first trays 1. The types and order of the battery cells in the two first trays 1 are uncertain. Each tray can place 24 battery cells, and the types of the battery cells can include functional battery cells, battery cells that need to be retested, and scrap battery cells. In the present application, the functional battery cells are defined as OK battery cells, also known as first battery cells, and the battery cells that cannot be used include two types, one is defined as NG-E99 battery cells, and the other is defined as NG non-E99 battery cells.

[0032] A four-jaw clamp robot 3 for detecting the types of the battery cells is arranged on one side of the first tray 1 and the second tray 2. The four-jaw clamp robot can clamp four battery cells at most at a time, and clamps the battery cells from the first tray 1 in sequence (from the first row to the second row in turn).

[0033] A first battery cell temporary storage table 4 and a second battery cell temporary storage table 5 are arranged around the four-jaw clamp robot 3. The first battery cell temporary storage table 4 is used for placing and matching the functional first battery cells, and the second battery cell temporary storage table 5 is used for placing and matching the second battery cells with defects. Each of the first battery cell temporary storage table 4 and the second battery cell temporary storage table 5 comprises five battery cell channels 8. One channel and two channels of the battery cell channels 8 form a first channel group, and three channels, four channels and five channels of the battery cell channels 8 form a second channel group. The interval distance between the first channel group and the second channel group is greater than the distance between two battery cells. The battery cell channels function as temporary storage positions for the four-jaw clamp robot to temporarily store non-target battery cells.

[0034] A first pull belt channel 6 is arranged on one side of the first battery cell temporary storage table 4. The first pull belt channel 6 is used for placing and conveying four groups of first battery cells, and the first pull belt channel 6 is a four-channel pull belt.

[0035] The second pull tape channel 7 is arranged on one side of the second battery cell temporary storage platform 5, and is used for placing and conveying the second battery cell. The second pull tape channel is also a four-channel pull tape, and the second pull tape channel 7 is more detailed, and specifically includes a second pull tape channel one 71 and a second pull tape channel two 72. The second pull tape channel one 71 is used for conveying the NG-E99 battery cell, and the second pull tape channel two 72 is used for conveying the NG non-E99 battery cell. The second pull tape channel one 71 and the second pull tape channel two 72 are both double-channel pull tapes.

[0036] Reference Figure 2 An embodiment provided by the application is a battery four-claw pairing process, and the specific steps include:

[0037] S1, a plurality of first trays 1 and at least one second tray 2 are sequentially moved to one side of the four-claw clamp robot 3, and disc unloading starts;

[0038] S2, the four-claw clamp robot 3 grasps four battery cells at a time, and identifies the type of the grasped battery cells. If the four grasped battery cells are all first battery cells, S3 is performed. If the four grasped battery cells are all retest battery cells, S4 is performed. If the four grasped battery cells include first battery cells, second battery cells and retest battery cells, S5 is performed.

[0039] S3, the four-claw clamp robot 3 grasps four first battery cells and places them on the first pull tape channel 6;

[0040] S4, the four-claw clamp robot 3 grasps four retest battery cells and places them on the retest tray;

[0041] S5, a first claw and a second claw of the four-claw clamp robot 3 grasp two battery cells and place them in the battery cell buffer platform. It is judged whether the current battery cell buffer platform is combined with four first battery cells or four retest battery cells. If it is combined with four first battery cells, S3 is performed. If it is combined with four retest battery cells, S4 is performed. In S5, if the battery cells grasped by the first claw and the second claw are first battery cells and second battery cells, the four-claw clamp robot 3 adjusts the positions of the first battery cells and the second battery cells, so that four first battery cells are paired or two second battery cells of the same type are paired. Then, the four-claw clamp robot 3 grasps the first battery cells and places them on the first pull tape channel 6, or the four-claw clamp robot grasps the second battery cells of the same type and places them on the second pull tape channel 7. In S5, before the battery cells grasped by the first claw and the second claw of the four-claw clamp robot 3 are placed on the corresponding buffer platform, the four-claw clamp robot judges whether there are battery cells in the battery cell channel 8 where the battery cells to be placed or whether the types of the occupied battery cells.

[0042] S6, repeat the above steps until all battery cell classification is completed.

[0043] Based on the situations that may be encountered during the use of the above process, the following explanation is provided in conjunction with specific embodiments:

[0044] Example 1:

[0045] When the four-jaw gripper robot 3 removes four battery cells from the tray, all of which are OK battery cells, the four-jaw gripper robot 3 will grab the four battery cells at once and place them on the four-channel OK pull belt to complete the removal of the tray.

[0046] When the four-jaw gripper robot 3 disassembles four battery cells, all of which are retested battery cells, the robot will grab the four battery cells at a time and place them on the retesting tray to complete the disassembly.

[0047] Example 2:

[0048] When the four battery cells disassembled by the four-jaw gripper robot 3 are not all OK cells, or not all retested cells, it further determines whether the first and second battery cells held by gripper number one and gripper number two are all OK or all retested. If the first and second battery cells are all OK cells, gripper number one and gripper number two pick up the first and second battery cells from the tray. Then it determines whether there are any battery cells in the first battery cell buffer channel and the second battery cell channel. If the first battery cell... If there are no cells in the first cell channel and the second cell channel, place the OK cells from the first and second grippers into the first and second cell channels. If there are cells in the first and second cell channels, use the third and fourth grippers to grab the cells from the first cell buffer platform in the first and second cell channels, forming four first cell grippers, and place them on the first pull channel 6 to complete the unpacking and execute the next material handling cycle. The process of retesting the cells is the same.

[0049] Example 3:

[0050] When the four battery cells disassembled by the four-jaw gripper robot 3 are not all OK cells or not all retested cells, it is then determined whether the first and second battery cells held by the first and second grippers are all OK or all retested. If the first and second battery cells are OK cells and NG-E99 cells, the first and second grippers pick up the first and second battery cells from the tray. It is then determined whether there are any battery cells in the fourth battery cell channel of the first battery cell buffer station. If there are no battery cells, the OK battery cells from the first gripper are placed in the fourth battery cell channel of the first battery cell buffer station, and the NG-E99 battery cells from the second gripper are placed in the NG-E99 pull belt. The disassembly is completed and the next material picking cycle is executed. The gripping process for retested cells is the same.

[0051] Example 4:

[0052] When the four cells of the disassembled tray of the four-jaw clamp robot 3 are not all OK cells or not all retest cells, it is further determined whether the first cell and the second cell clamped by the first jaw and the second jaw are all OK or all retest; if the first cell and the second cell are OK cells and NG-E99 cells, the first jaw and the second jaw grab the first cell and the second cell in the tray; it is determined whether there is a cell in the fourth cell channel of the first cell temporary storage table 4, if there is a cell, the OK cell of the first jaw is placed in the fifth cell channel of the first cell temporary storage table 4, and the NG-E99 cell of the second jaw is placed in the NG-E99 pull belt; at this time, the third, fourth and fifth cell channels of the first cell temporary storage table 4 all have two OK cells, and the two OK cells must be grabbed to empty the third, fourth and fifth cell channels to facilitate the use of the two claws; if the first and second cell channels of the first cell temporary storage table 4 have no cells, the two OK cells of the clamp are placed in the first and second cell channels; if the first and second cell channels have cells, the two empty claws of the four-jaw clamp grab the cells in the first and second cell channels to form four OK cells and place them on the four-channel OK pull belt; the disassembled tray is completed and the next material taking cycle is performed. The same is true for retest cells;

[0053] Example five:

[0054] According to the good rate of the cell is 95% (one first tray 1 has two NG cells, 15ppm needs 128s), the specific operation process and the required time can be referred to the following table:

[0055]

[0056]

[0057] This case is 3S more, so it can meet the requirement of 15PPM.

[0058] Through the above process steps, the four-jaw clamp quickly disassembles the tray, grabs the cells and adjusts on the cell buffer table, so that the specified type of cells can be placed in the specified pull belt channel and classified, so as to achieve the effect of rapid classification and rapid conveying, and the cell disassembly and sorting capacity can meet the requirement of 15ppm capacity.

[0059] Finally, it should be noted that the above description is only a preferred embodiment of the present application and does not limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some technical features, as long as they are within the spirit and principles of the present application. Any modification, equivalent replacement, improvement, etc. made within the scope of the present application shall be included in the protection scope of the present application.

Claims

1. A pairing process for a battery four-claw pairing device, characterized in that: The pairing device includes at least two sets of first trays (1) for placing the battery cells to be tested and at least one set of second trays (2) for placing the battery cells to be retested. A four-jaw gripper robot (3) for detecting battery cells is positioned on one side of the first tray (1) and the second tray (2); The first battery cell storage platform (4) and the second battery cell storage platform (5) are arranged around the four-jaw gripper robot (3). The first battery cell storage platform (4) is used to place and pair a functional first battery cell, and the second battery cell storage platform (5) is used to place and pair a defective second battery cell. The first pull channel (6) is located on one side of the first cell storage platform (4) and is used to place and transport four sets of the first cells. The second pull channel (7) is located on one side of the second cell storage platform (5) and is used to place and transport the second cell. The pairing process includes: S1, multiple first trays (1) and at least one second tray (2) move sequentially to one side of the four-jaw gripper robot (3), and the disassembly begins; S2, the four-jaw gripper robot (3) grabs four battery cells at a time and identifies the type of battery cells grabbed; if all four battery cells grabbed are first battery cells, then S3 is executed; if all four battery cells grabbed are retested battery cells, then S4 is executed; if the four battery cells grabbed include first battery cells, second battery cells and retested battery cells, then S5 is executed. S3, the four-jaw gripper robot (3) grabs four of the first battery cells and places them on the first pull-belt channel (6); S4, the four-jaw gripper robot (3) grabs four of the retested battery cells and places them on the retesting tray; S5, the first and second grippers of the four-jaw gripper robot (3) pick up two battery cells and place them into the first battery cell storage platform (4) and / or the second battery cell storage platform (5). It is determined whether the first battery cell storage platform (4) and / or the second battery cell storage platform (5) are combined into four first battery cells or four retested battery cells. If they are combined into four first battery cells, then S3 is executed. If they are combined into four retested battery cells, then S4 is executed. S6. Repeat the above steps until all battery cells are sorted.

2. The pairing process of the battery four-claw pairing device according to claim 1, characterized in that: The second pull channel (7) includes a second pull channel one (71) and a second pull channel two (72), and the second battery cell includes an NG-E99 battery cell or an NG non-E99 battery cell.

3. The pairing process of the battery four-claw pairing device according to claim 1, characterized in that: The second tray (2) is a retesting tray. The four-jaw gripper robot (3) grabs the retesting cells on the second cell storage platform (5) and places them on the retesting tray.

4. The pairing process of the battery four-claw pairing device according to claim 1, characterized in that: The first pull belt channel (6) is a four-channel pull belt, and the second pull belt channel (7) is also a four-channel pull belt.

5. The pairing process of the battery four-claw pairing device according to claim 1, characterized in that: Both the first cell storage platform (4) and the second cell storage platform (5) contain five cell channels (8).

6. The pairing process of the battery four-claw pairing device according to claim 5, characterized in that: The first channel and the second channel in the cell channel (8) form a first channel group, and the third, fourth and fifth channels in the cell channel (8) form a second channel group. The distance between the first channel group and the second channel group is greater than the distance between two cells.

7. The pairing process of the battery four-claw pairing device according to claim 1, characterized in that: In S5, if the first and second grippers grip the first battery cell and the second battery cell, the four-jaw gripper robot (3) adjusts the position of the first battery cell and the second battery cell so that the four first battery cells are paired or the two second battery cells of the same type are paired. Then, the four-jaw gripper robot (3) grips the first battery cell and places it on the first pull channel (6) or the four-jaw gripper robot grips the second battery cell of the same type and places it on the second pull channel (7).

8. The pairing process of the battery four-claw pairing device according to claim 1, characterized in that: In S5, the first and second grippers of the four-jaw gripper robot (3) grip the battery cell and place it in front of the corresponding temporary storage platform. The four-jaw gripper robot determines whether there is already a battery cell in the battery cell channel (8) where the battery cell to be placed.

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