Battery cell feeding system

Abstract

The embodiment of the utility model relates to the field of machinery, and provides a battery cell feeding system which comprises a feeding unit used for driving a tray to be on line, the tray bears battery cells, and the feeding unit is further used for detecting the number of layers of the tray and outputting prompt information when the number of layers of the tray is abnormal; the grabbing unit is used for grabbing the battery cell carried on the tray and driving the battery cell to move; and the pushing on-line unit is used for receiving the battery cells grabbed by the grabbing unit and transmitting the battery cells, the grabbing unit and the feeding unit are arranged on the two sides of the grabbing unit correspondingly, and the compatibility of battery cell feeding can be improved.

Description

TECHNICAL FIELD

[0001] The embodiment of the present disclosure relates to the mechanical field, in particular to a battery cell feeding system. BACKGROUND

[0002] The lithium battery module is usually composed of a plurality of battery cells in series or in parallel, and the battery cell feeding is the first process of the module assembly, which involves the unpacking, cleaning, transfer and online of the battery cell. With the rapid development of the new energy industry, the specifications of the battery cell and the module are more and more, and the sizes are also different. At present, the battery cell feeding station on the market can only be compatible with one or two similar specifications and sizes of the battery cell. If you want to be compatible with the battery cell with a large size difference, you need to modify the entire battery cell feeding station, including the battery cell unpacking mechanism, the battery cell transfer clamp, the battery cell transfer tray, etc. The modification cost is high, the modification time is long and it affects the production plan. CONTENT OF THE UTILITY MODEL

[0003] The embodiment of the present disclosure provides a battery cell feeding system, which can at least improve the compatibility of the battery cell feeding.

[0004] According to some embodiments of the present disclosure, the embodiment of the present disclosure provides a battery cell feeding system, which comprises: a feeding unit, the feeding unit is used to drive the tray online, the tray carries the battery cell, and the feeding unit is also used to detect the number of layers of the tray and output a prompt information when the number of layers of the tray is abnormal; a grabbing unit, the grabbing unit is used to grab the battery cell carried on the tray and drive the battery cell to move; a pushing online unit, the pushing online unit is used to receive the battery cell grabbed by the grabbing unit and transmit the battery cell, and the grabbing unit and the feeding unit are respectively arranged on both sides of the grabbing unit.

[0005] In some embodiments, the feeding unit comprises: a tray online ground roller line, the tray online ground roller line is used to drive the tray carrying the battery cell online; a tray offline ground roller line, the tray offline ground roller line is used to carry the empty tray and drive the empty tray offline after the empty tray is stacked to a preset number of layers; a de-stacking clamp, the de-stacking clamp is fixed above the tray online ground roller line and the tray offline ground roller line, and is used to grab the empty tray on the tray online ground roller line to the tray offline ground roller line; a tray layer height detection mechanism, the tray layer height detection mechanism is used to detect the number of layers of the tray stacked on the tray online ground roller line, and output a prompt information when the number of stacked layers does not meet the expected number of layers.

[0006] In some embodiments, the tray height detection mechanism comprises: an electric cylinder and a variable distance assembly, the electric cylinder drives the variable distance assembly to move and adjusts the height of the variable distance assembly according to the height of the electric cylinder; a plurality of pairs of light sensors, the pairs of light sensors are fixed on the variable distance assembly at intervals, and are used to detect the number of layers of the tray stack on the coil on the tray.

[0007] In some embodiments, the grabbing unit comprises: a robot, the robot drives the electric cylinder to move; an electric cylinder clamp, the electric cylinder clamp is fixed on the robot, and is used to grab the electric cylinder.

[0008] In some embodiments, the electric cylinder clamp comprises: a floating clamp and a fixed clamp, the fixed clamp and the floating clamp are located on opposite sides of the electric cylinder, the floating clamp can move towards the fixed clamp or away from the fixed clamp; a servo assembly, the servo assembly is connected with the floating clamp and the fixed clamp respectively, and is used to drive the floating clamp to move towards the fixed clamp or away from the fixed clamp.

[0009] In some embodiments, the floating clamp comprises: a first fixed plate; a plurality of clamping blocks arranged at intervals, the clamping blocks are fixed on the first fixed plate; a guide rod, the guide rod is installed on the plurality of clamping blocks; a spring, the spring is fixed on the guide rod, and the spring is located on the side of the first fixed plate facing the fixed clamp; a proximity sensor, the proximity sensor is used to detect the movement of the clamping blocks and judge whether the movement distance of the clamping blocks meets the preset distance.

[0010] In some embodiments, the floating clamp further comprises: a bottom clamping mechanism, the bottom clamping mechanism is located below the clamping blocks, and is used to move to the bottom surface of the electric cylinder when the clamping blocks and the fixed clamp clamp the electric cylinder.

[0011] In some embodiments, the fixed clamp comprises: a second fixed plate; a plurality of reflective photoelectric sensors, the reflective photoelectric sensors are fixed on the second fixed plate, and one reflective photoelectric sensor corresponds to one clamping block, and is used to detect whether there is an electric cylinder at the corresponding position of the clamping block.

[0012] In some embodiments, the pushing and feeding unit comprises: a pushing assembly, the pushing assembly is used to carry the electric cylinder and drive the electric cylinder to move in a first direction; a testing assembly, the testing assembly is located at the end of the pushing assembly in the first direction, and is used to test the electric cylinder; a plate chain line, the plate chain line is located at the tail of the pushing assembly in the first direction, receives the electric cylinder after the testing assembly tests, and transmits the electric cylinder in a second direction, the second direction is different from the first direction.

[0013] In some embodiments, further comprising: a cleaning unit located between the incoming material unit and the pushing online unit, configured to clean the battery cell grabbed by the grabbing unit.

[0014] The technical solution provided by the embodiments of the present disclosure has at least the following advantages: the incoming material of the battery cell is detected by the incoming material unit, and whether the incoming material of the battery cell is abnormal is detected according to the corresponding number of layers of different sizes of battery cells before the battery cell is online, so that different specifications and sizes of battery cells can be detected, the conveying of the battery cell can be completed by the grabbing unit and the pushing online unit, the transportation of different specifications and sizes of battery cells can be compatible, and the compatibility of the battery cell feeding system is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] One or more embodiments are illustrated by way of example in the drawings in which are shown schematically one or more embodiments described herein. These embodiments are described in sufficient detail to enable those skilled in the art to make and use them. The embodiments can be employed in many various ways without departing from the application. It is to be understood that the drawings and described embodiments are not restrictive, and that the scope of the application will be indicated by the appended claims. For example, the drawings are not necessarily drawn to scale. It should be noted that for clarity and ease of illustration, the drawings are only schematic and are made only to facilitate comprehension of embodiments disclosed herein. In particular, the drawings show only those specific details that are necessary for an understanding of the embodiments disclosed herein and do not show all conventional details that would be understood by persons having ordinary skill in the art. It should be noted that for clarity and ease of illustration, the drawings are only schematic and are made only to facilitate comprehension of embodiments disclosed herein. In particular, the drawings show only those specific details that are necessary for an understanding of the embodiments disclosed herein and do not show all conventional details that would be understood by persons having ordinary skill in the art.

[0016] Figure 1 A structural schematic diagram of an incoming material unit according to an embodiment of the present disclosure is shown in FIG. 1.

[0017] Figure 2 A structural schematic diagram of a grabbing unit according to an embodiment of the present disclosure is shown in FIG. 2.

[0018] Figure 3 A structural schematic diagram of a battery cell gripper according to an embodiment of the present disclosure is shown in FIG. 3.

[0019] Figure 4 A structural schematic diagram of a pushing online unit according to an embodiment of the present disclosure is shown in FIG. 4.

[0020] Figure 5 A structural schematic diagram of a cleaning unit according to an embodiment of the present disclosure is shown in FIG. 5. DETAILED DESCRIPTION

[0021] The traditional compatible method has problems of many devices to be modified, long time, high cost, no modification space and the like. At present, only the feeding mode of the cell module production line supporting one specification is that the robot takes out the corresponding number of cells from the frame through the customized gripper and places them on the line. Most of the institutions are customized and difficult to modify. If the line needs to be compatible with different specifications of cells, the number of cells in each row or column in the frame is different, and the spacing between adjacent cells is also different. Therefore, when the cells are taken out in the whole row from the packaging box, i.e. when the cells are unstacked, the gripper needs to have sufficient length. However, after the cells are unstacked and fed on the line, the subsequent processing equipment can only process the fixed number of cells.

[0022] The embodiment of the present disclosure provides a cell feeding system. The incoming material of the cell is detected by the incoming material unit. Whether the incoming material of the cell is abnormal is detected according to the number of layers corresponding to the size of the different cells before the cell is fed on the line. Therefore, the cells of different specifications and sizes can be detected. The delivery of the cells can be completed by the grabbing unit and the pushing and feeding unit. The transportation of the cells of different specifications and sizes can be compatible. The compatibility of the cell feeding system is improved.

[0023] In the description of the embodiments of the present disclosure, the technical terms "first", "second", and the like are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present disclosure, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified.

[0024] In this document, the term "embodiment" means that the specific features, structures or characteristics described in connection with the embodiment can be included in at least one embodiment of the present disclosure. The appearance of this phrase in various places in the specification does not necessarily mean the same embodiment, nor is it an independent or alternative embodiment to other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0025] In the description of the embodiments of the present disclosure, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can mean: A exists, A and B exist, and B exists. In addition, the character " / " in this document generally represents a "or" relationship between the front and rear associated objects.

[0026] In the description of the embodiments of the present disclosure, the term "a plurality of" means two or more (including two), and similarly, "a plurality of groups" means two or more groups (including two groups), and "a plurality of pieces" means two or more pieces (including two pieces).

[0027] In the description of the embodiments of the present disclosure, the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the embodiments of the present disclosure and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present disclosure.

[0028] In the description of the embodiments of the present disclosure, unless otherwise explicitly specified and limited, the technical terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0029] In the corresponding drawings of the embodiments of the present disclosure, in order to better understand and facilitate the description, the thickness and area of the layer are enlarged. When describing that a component (such as a layer, a film, a region or a substrate) is on or on the surface of another component, the component can be "directly" on the surface of the other component, or there can be a third component between the two components. On the contrary, when describing that a component is on the surface of another component or that a component surface is formed or provided with another component, it means that there is no third component between the two components. In addition, when describing that a component is "formed substantially" on another component, it means that the component is not formed on the entire surface (or front surface) of the other component, nor is it formed on a part of the edge of the entire surface.

[0030] In the description of the embodiments of the present disclosure, when a certain component "includes" another component, unless otherwise specified, other components are not excluded and other components can also be further included. In addition, when a layer, film, region or plate and the like component is referred to as "on / over" another component, it can be "directly on" another component (i.e. between the surface of another component and another component without other components), or another component can exist therebetween. In addition, when a layer, film, region, plate and the like component is "directly on" another component, or when a layer, film, region, plate and the like component is on the surface of another component, it means that no other component is located therebetween.

[0031] The terminology used in the description of the various described embodiments herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used in the description of the various embodiments of the disclosure and the appended claims, the term "the means" is also intended to include plural forms, unless the context clearly indicates otherwise. Among other things, the means include components such as layers, films, regions, or plates.

[0032] The embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. However, those skilled in the art can understand that in the embodiments of the present disclosure, many technical details are presented in order to enable the reader to better understand the present disclosure. However, the technical solutions claimed by the present disclosure can be implemented even without these technical details and various changes and modifications based on the following embodiments.

[0033] Reference Figures 1 to 5 , Figure 1 A structural schematic diagram of a incoming unit provided by an embodiment of the present disclosure; Figure 2 A structural schematic diagram of a grabbing unit provided by an embodiment of the present disclosure; Figure 3 A structural schematic diagram of a battery cell clamping jaw provided by an embodiment of the present disclosure; Figure 4 A structural schematic diagram of a pushing and feeding unit provided by an embodiment of the present disclosure; Figure 5 A structural schematic diagram of a cleaning unit provided by an embodiment of the present disclosure.

[0034] In some embodiments, the battery cell feeding system can include: an incoming unit 20, the incoming unit 20 is configured to drive a tray 24 to feed, the tray 24 carries battery cells, and the incoming unit 20 is further configured to detect the number of layers of the tray 24 and output a prompt information when the number of layers of the tray 24 is abnormal.

[0035] The battery cell feeding system can further include: a grabbing unit 10, the grabbing unit 10 is configured to grab the battery cells carried on the tray 24 and move the battery cells.

[0036] The battery cell feeding system can further include: a pushing and feeding unit 40, the pushing and feeding unit 40 is configured to receive the battery cells grabbed by the grabbing unit 10 and transmit the battery cells, and the grabbing unit 10 and the incoming unit 20 are respectively arranged on both sides of the grabbing unit 10.

[0037] The embodiments of the present disclosure detect the incoming of the battery cells through the incoming unit 20, detect whether the incoming of the battery cells is abnormal according to the number of layers corresponding to the size of the different battery cells before the battery cells feed, so that the detection of the battery cells of different specifications and sizes can be realized, and the delivery of the battery cells can be completed through the grabbing unit 10 and the pushing and feeding unit 40, which can be compatible with the transportation of battery cells of different specifications and sizes, and the compatibility of the battery cell feeding system is improved.

[0038] It can be understood that the incoming material of the battery cell can be large packaging feeding. Large packaging feeding refers to that the incoming material of the battery cell is not a bare battery cell, but a battery cell packaged with packaging materials and a bottom support to meet the safety requirements in the battery cell installation process, which is commonly known as "large packaging" in the industry. The packaging materials include foam, rubber and other elastic materials, and the bottom support includes a stack board, a tray 24, a clamping groove box and the like. Large packaging: the incoming material of the battery cell not only has the battery cell, but also contains the battery cell packaging materials and the bottom support. This whole habit is called large packaging, so it is commonly known as "large packaging feeding".

[0039] Before the battery cell is transported to the incoming material unit 20, the foam and other packaging materials are removed, and the battery cell is placed on the tray 24, which is stacked in the form of the tray 24 and is fed to the tray feeding ground roller line 22.

[0040] Reference Figure 1 In some embodiments, the incoming material unit 20 can include: a tray feeding ground roller line 22 for driving the tray 24 carrying the battery cell to feed; a tray unloading ground roller line 25 for carrying the empty tray and driving the empty tray to unload after the empty tray is stacked to a preset number of layers; a de-stacking gripper 21 fixed above the tray feeding ground roller line 22 and the tray unloading ground roller line 25, for grabbing the empty tray on the tray feeding ground roller line 22 to the tray unloading ground roller line 25; and a tray layer height detection mechanism 23 for detecting the number of layers of the tray 24 stacked on the tray feeding ground roller line 22 and outputting a prompt information when the number of stacked layers does not meet the expected number of layers.

[0041] In some embodiments, the de-stacking gripper 21 can move in three different directions. After the grabbing unit 10 transports all the battery cells carried on a tray 24 to the push feeding unit 40, the de-stacking gripper 21 grabs the empty tray and transports it to the tray unloading ground roller line 25.

[0042] It can be understood that the tray feeding ground roller line 22 is used to transport the tray 24 carrying the battery cell to a preset position. After the tray 24 is transported to the preset position, the tray layer height detection mechanism 23 detects the number of layers of the tray 24, and judges whether the number of incoming materials is normal through the tray layer height detection mechanism 23. When the detection is normal, the grabbing unit 10 grabs the battery cell on the tray 24 and transports it to the push feeding unit 40. The remaining empty tray is moved from the tray feeding ground roller line 22 to the tray unloading ground roller line 25 by the de-stacking gripper 21, and the tray unloading ground roller line 25 drives the empty tray to unload when the empty tray reaches a set number of layers, so as to facilitate the reuse of the tray 24.

[0043] When the production line needs to be compatible with different specifications of battery cells, for example, the production line needs to be compatible with two specifications of battery cells, one of which is a battery cell with a height of 50 cm, and the corresponding 50 cm battery cell is preset to be stacked in 6 layers. When the stacked battery cells are transported to the position of the tray height detection mechanism 23, the tray height detection mechanism 23 detects whether there are 6 layers of battery cells. When the number of battery cell layers is determined to be 6 layers, it indicates that there is no abnormality. After the transportation of the 50 cm high battery cells is completed, the other specification of battery cells is 80 cm high, and the corresponding 80 cm battery cell is preset to be stacked in 4 layers. The tray height detection mechanism 23 can automatically adjust to detect whether the tray 24 is 4 layers high, thereby achieving detection of different specifications of battery cells and improving the compatibility of the battery cell feeding unit.

[0044] In some embodiments, the tray height detection mechanism 23 includes an electric cylinder and a variable distance assembly. The electric cylinder drives the variable distance assembly to move, and adjusts the height of the variable distance assembly according to the height of the battery cell. A plurality of light barrier sensors are fixed on the variable distance assembly at intervals, and are used to detect the number of stacked trays 24 on the tray on-line roller 22.

[0045] The electric cylinder and the variable distance assembly adjust the height of the variable distance assembly according to the different specifications of the battery cells. The variable distance assembly can include a plurality of layers of nested supports, and the height of the variable distance assembly can be adjusted by adjusting the height of the supports. The light barrier sensor can emit light towards the position of the tray 24. When the light barrier sensor receives reflected light, it indicates that there is a tray 24 at the position corresponding to the light barrier sensor. For example, the number of stacked trays 24 on the tray on-line roller 22 is preset to be 6 layers. The light barrier sensor emits light towards the position of each layer of the tray 24. When the 6 layers of light barrier sensors receive reflected light, it indicates that the number of stacked trays 24 is determined to be 6 layers, indicating that there is no abnormality. When the light barrier sensors that are not 6 layers receive reflected light, for example, 5 layers or 7 layers, it indicates that there is an abnormality.

[0046] In some embodiments, the number of stacked trays 24 can also be detected by other means, for example, light barrier sensors are arranged on both sides of the battery cell. When one side of the light barrier sensor receives light emitted by the other side of the light barrier sensor, it indicates that there is no battery cell and tray 24 at that position. The light barrier sensors arranged on both sides of the battery cell can also be used for detection.

[0047] In some embodiments, the tray height detection mechanism 23 can also detect the total height of the stacked battery cells to determine whether the number of layers is correct, and the like. Details are not described here.

[0048] Reference Figure 2In some embodiments, the grabbing unit 10 comprises a robot 11 for moving the battery cell, and a battery cell gripper 12 fixed on the robot 11 for grabbing the battery cell.

[0049] The robot 11 is used to drive the battery cell gripper 12 to grab the battery cell and carry the battery cell to a target position, which can replace manual carrying of the battery cell. Compared with manual carrying of the battery cell, the use of the robot 11 can effectively improve the carrying efficiency of the battery cell. The robot 11 can be a six-degree-of-freedom robot 11, which has high flexibility and can drive the battery cell gripper 12 to move to multiple positions.

[0050] Reference Figure 3 In some embodiments, the battery cell gripper 12 can comprise a floating gripper 121 and a fixed gripper 122, the fixed gripper 122 and the floating gripper 121 are located on opposite sides of the battery cell, and the floating gripper 121 can move towards the direction of approaching or moving away from the fixed gripper 122; a servo assembly 123 connected with the floating gripper 121 and the fixed gripper 122 respectively, for driving the floating gripper 121 to move towards the direction of approaching or moving away from the fixed gripper 122.

[0051] The fixed gripper 122 is the fixed end of the battery cell gripper 12, which serves as a side support for the battery cell. The floating gripper 121 is controlled by the servo assembly 123, thereby completing the grabbing and dropping actions of the battery cell. When the robot 11 drives the battery cell gripper 12 to grab the battery cell, the servo assembly 123 drives the floating gripper 121 and the fixed gripper 122 to approach each other to clamp the battery cell. The cooperation of the servo assembly 123 and the floating gripper 121 can improve the compatibility of the battery cell gripper 12, thereby being compatible with battery cells of different sizes.

[0052] In some embodiments, the floating gripper 121 can comprise a first fixed plate, a plurality of clamping blocks arranged at intervals, the clamping blocks being fixed on the first fixed plate, a guide rod installed on the plurality of clamping blocks, and a spring fixed on the guide rod, the spring being located on the side of the first fixed plate facing the fixed gripper 122. A proximity sensor is used to detect the movement of the clamping blocks and determine whether the movement distance of the clamping blocks meets a preset distance.

[0053] The first fixed plate can be used as a mounting bracket of the clamping block, the guide rod is used as a mounting bracket of the spring, the clamping block is used for clamping the battery cell together with the fixed clamping jaw 122, and the spring is used for fixing the battery cell together with the fixed clamping jaw 122 by the elastic force of the spring, so as to avoid the battery cell from slipping off the battery cell clamping jaw 12, and the spring can also avoid damage to the battery cell by the battery cell clamping jaw 12. The proximity sensor can sense whether the clamping block is in place to determine whether the sliding of the clamping block is smooth, and whether the moving distance of the clamping block meets the preset distance, so as to determine whether the battery cell clamping jaw 12 clamps and fixes the battery cell well.

[0054] In some embodiments, the plurality of clamping blocks can be installed on the fixed plate at a distance of 0.5mm to 1.5mm. For the clamping block, the closer the distance between the adjacent clamping blocks, the greater the possibility of interference between the adjacent clamping blocks, and the farther the distance between the clamping blocks, the lower the reliability of clamping between the floating clamping jaw 121 and the fixed clamping jaw 122. Therefore, setting the distance between the adjacent clamping blocks to 0.5mm to 1.5mm can further improve the reliability of the battery cell feeding system.

[0055] In some embodiments, the floating clamping jaw 121 further comprises a bottom lifting mechanism located below the clamping block, used to move to the bottom surface of the battery cell when the clamping block and the fixed clamping jaw 122 clamp the battery cell.

[0056] By setting the bottom lifting mechanism, the battery cell can be supported by the bottom lifting mechanism when the battery cell clamping jaw 12 clamps the battery cell, so as to avoid the battery cell from falling off.

[0057] In some embodiments, the fixed clamping jaw 122 comprises a second fixed plate, and a plurality of reflective photoelectric sensors are fixed on the second fixed plate, and one reflective photoelectric sensor corresponds to one clamping block, and is used for detecting whether there is a battery cell at the corresponding position of the corresponding clamping block.

[0058] The second fixed plate is used for cooperating with the floating clamping jaw 121 to clamp the battery cell, and is also used for installing the reflective photoelectric sensor, so as to facilitate the reflective photoelectric sensor to detect whether there is a battery cell at the corresponding position of the clamping block.

[0059] When the battery cell gripper 12 clamps the battery cell, the number of clamping blocks required to clamp the battery cell is known in advance. For example, if 5 clamping blocks are required to clamp a first type of battery cell, then there will be 5 reflected light sensors detecting the presence of a battery cell in the corresponding position of the corresponding clamping block. In this case, there is no abnormality. On the other hand, the reflected light sensors are also used to detect whether the battery cell slips or falls during the transportation of the battery cell by the grabbing unit 10. For example, when the first type of battery cell is transported by the grabbing unit 10, the number of reflected light sensors detecting the presence of a battery cell in the corresponding position of the corresponding clamping block changes from 5 to 4. In this case, there is an abnormality during the transportation process, and an alarm will be sent to the maintenance personnel for checking.

[0060] In some embodiments, the fixed gripper 122 also includes a bottom pocket mechanism for moving to the bottom surface of the battery cell when the battery cell is clamped between the clamping block and the fixed gripper 122.

[0061] In some embodiments, the servo assembly 123 includes a servo motor and a bidirectional screw rod. The bidirectional screw rod is connected to the first fixed plate and the second fixed plate. The servo motor is connected to the bidirectional screw rod to drive the bidirectional screw rod to rotate. The first fixed plate and the second fixed plate can move closer or farther away at the same time.

[0062] Reference Figure 4 In some embodiments, the pushing online unit 40 can include a pushing assembly 41 for carrying the battery cell and moving the battery cell in a first direction. A testing assembly 44 is located at the end of the pushing assembly 41 in the first direction for testing the battery cell. A plate chain line 43 is located at the tail of the pushing assembly 41 in the first direction to receive the battery cell after testing by the testing assembly 44 and transmit the battery cell in a second direction different from the first direction.

[0063] The grabbing unit 10 is used to place the battery cell on the pushing assembly 41, transport the battery cell to the corresponding position of the testing assembly 44 by the pushing assembly 41, and test the electrical performance of the battery cell by the testing assembly 44. After the test is completed, the battery cell is transported to the next work station by the plate chain line 43.

[0064] In some embodiments, the pushing assembly 41 can include a pushing platform 411, a pushing mechanism 412 and a centering mechanism 413, the grabbing unit 10 places the battery cell on the pushing platform 411, the centering mechanism 413 is located on both sides of the pushing platform 411 and clamps the battery cell on the pushing platform 411, the probe on the testing assembly 44 aligns with the battery cell pole and presses down for OCV (Open Circuit Voltage) test, the code scanner on the testing assembly 44 scans the battery cell two-dimensional code, records the OCV test result and uploads the result to the subsequent station, then the pushing mechanism 412 starts to push the single battery cell to the plate chain line 43, and the plate chain line 43 delivers the battery cell to the next station.

[0065] In some embodiments, the pushing assembly 41 can further include a machine table 42, the pushing assembly 41 is installed on the machine table 42, the plate chain line 43 is located at the end of the pushing assembly 41 along the first direction and the height of the plate chain is consistent with the pushing platform 411 of the pushing assembly 41, and the plate chain line 43 is installed on the machine table 42; the testing assembly 44 includes a code scanner and a probe, and the testing assembly 44 is located above the end of the pushing assembly 41 along the first direction of the plate chain line 43, the code scanner and the probe of the testing assembly 44 will scan and test the battery cell before the battery cell is pushed onto the line.

[0066] It can be understood that the number of the pushing onto line units 40 can be set to multiple, so as to meet the production demand of the production line.

[0067] In some embodiments, the battery cell loading system can further include a cleaning unit 30, the cleaning unit 30 is located between the incoming material unit 20 and the pushing onto line unit 40, and is used for cleaning the battery cell grabbed by the grabbing unit 10. Through the cleaning unit 30, the battery cell can be cleaned before testing, so as to avoid test misjudgment caused by dust, improve the accuracy of testing, and improve the cleanliness of the battery cell, facilitating the transmission of the battery cell to the next process.

[0068] Reference Figure 5 Figure 1 Figure 2 Figure 3 Figure 4 Figure 5In some embodiments, the cleaning unit 30 can include a cleaning brush 31, an ion blower 32, a driving assembly 33, a dust collection pipeline 34, and a support frame 35; the cleaning brush 31 is in a cylindrical structure as a whole, and one end of the cleaning brush 31 is provided with a rotating joint, the support frame 35 is fixedly arranged on the ground, the cleaning brush 31 is rotatably installed on the support frame 35, and the driving assembly 33 and the cleaning brush 31 are drivingly connected through the rotating joint to drive the cleaning brush 31 to rotate; the top of the support frame 35 is provided with a containing groove, the containing groove is located below the cleaning brush 31, the ion blower 32 is installed on the support frame 35 and located on opposite sides of the containing groove; and the dust collection pipeline 34 is located below the containing groove and installed on the support frame 35. The grabbing unit 10 grabs the battery cell from the incoming material unit 20 to above the cleaning unit 30, the cleaning brush 31 rotates to clean the bottom of the battery cell, and at the same time, the ion blower 32 is started to blow away the dust, the dust collection pipeline 34 below the cleaning brush 31 absorbs the dust, and the cleaning process of the bottom of the battery cell is completed.

[0069] The following will describe the loading process of the battery cell loading system provided by an embodiment of the present application. In use, the tray up-line ground roller line 22 drives the tray 24 loaded with battery cells to the up-line, the robot 11 drives the battery cell gripper 12 to grab the battery cells from the tray 24 and moves the battery cells to the cleaning unit 30, after all the battery cells in the tray 24 are grabbed, the unstacking gripper 21 grabs the empty battery cell tray 24 to the tray down-line ground roller line 25, when the layer height detection mechanism of the tray down-line ground roller line 25 detects that the empty tray reaches the set number of layers, the tray down-line ground roller line 25 drives the empty tray to the down-line; the cleaning unit 30 cleans the bottom of the battery cell, which can avoid the bottom of the battery cell from absorbing too much dust, and the dust collection pipeline 34 absorbs the dust to avoid dust explosion; after cleaning, the battery cell is placed on the pushing platform 411, and the test assembly 44 performs code scanning and OCV testing on the battery cell, after the code scanning and OCV testing of the battery cell, the pushing mechanism 412 pushes the single battery cell to the plate chain line 43, and the plate chain line 43 conveys the single battery cell to the next work station.

[0070] When the tray layer height detection mechanism 23 is used, the total height of the tray 24, i.e., the distance from the bottom of the battery cell tray 24 to the top of the battery cell, changes due to the change in the size of the battery cell, the tray layer height detection mechanism 23 will change the distance, and the detection function of the layer height is completed, which can automatically complete the battery cell up-line, unstacking, and empty tray down-line; the battery cell gripper 12 is a single floating type, which can be compatible with battery cells of different sizes and different numbers, so a four-axis robot and a six-axis robot for up-line are not needed, and only one six-axis robot can complete the battery cell up-line function; the plate chain line 43 is used to convey the battery cell instead of the tray 24, when different battery cells need to be adapted, only the distance between the guide wheels of the plate chain line 43 needs to be adjusted to complete the conveying function of the battery cell, without the need to replace the tray 24; the test station and the pushing up-line station are combined, which reduces the area of the station. The present disclosure has strong compatibility, low transformation and replacement cost, short time, and reduced floor space.

[0071] Those skilled in the art can understand that the above-mentioned embodiments are specific embodiments for implementing the present disclosure, and in actual applications, various changes can be made in form and details without departing from the spirit and scope of the embodiments of the present disclosure. Any person skilled in the art can make various modifications and changes without departing from the spirit and scope of the embodiments of the present disclosure, and therefore the protection scope of the embodiments of the present disclosure should be subject to the scope defined by the claims.

Claims

1. An electrode cell loading system, comprising: The application relates to a battery cell production device. The device comprises: a feeding unit for driving a tray on which battery cells are carried, and detecting the number of layers of the tray and outputting prompt information when the number of layers of the tray is abnormal; a grabbing unit for grabbing the battery cells carried on the tray and moving the battery cells; 2. The cell loading system of claim 1, wherein, a pushing unit for receiving the battery cells grabbed by the grabbing unit and transmitting the battery cells, and the grabbing unit and the feeding unit are arranged on the two sides of the grabbing unit. The feeding unit comprises: a tray feeding roller for driving the tray on which the battery cells are carried; a tray discharging roller for carrying empty trays and driving the empty trays to be discharged after the empty trays are stacked to a preset number of layers; a de-stacking clamp fixed above the tray feeding roller and the tray discharging roller and used for grabbing the empty trays on the tray feeding roller to the tray discharging roller; 3. The cell loading system of claim 2, wherein, a tray layer height detection mechanism for detecting the number of layers of the tray stacked on the tray feeding roller and outputting prompt information when the number of stacked layers does not meet the expected number of layers. The tray layer height detection mechanism comprises: an electric cylinder and a variable distance assembly, the electric cylinder drives the variable distance assembly to move and adjusts the height of the variable distance assembly according to the height of the battery cell; 4. The cell loading system of claim 1, wherein, a plurality of pairs of light sensors fixed on the variable distance assembly and used for detecting the number of layers of the tray stacked on the tray feeding roller. The grabbing unit comprises: a robot for moving the battery cells; 5. The cell loading system of claim 4, wherein, a battery cell clamp fixed on the robot and used for grabbing the battery cells. The battery cell clamp comprises: a floating clamp and a fixed clamp, the floating clamp and the fixed clamp are located on the opposite sides of the battery cell, the floating clamp can move towards the fixed clamp or away from the fixed clamp; 6. The cell loading system of claim 5, wherein, a servo assembly connected with the floating clamp and the fixed clamp and used for driving the floating clamp to move towards the fixed clamp or away from the fixed clamp. The floating clamp comprises: a first fixed plate; a plurality of clamping blocks arranged at intervals and fixed on the first fixed plate; a guide rod installed on the plurality of clamping blocks; a spring fixed on the guide rod, the spring is located on the side of the first fixed plate facing the fixed clamp; 7. The cell loading system of claim 6, wherein, a proximity sensor used for detecting the movement of the clamping blocks and judging whether the movement distance of the clamping blocks meets a preset distance. The floating clamp further comprises:

8. The cell loading system of claim 6, wherein, a bottom clamping mechanism located below the clamping blocks and used for moving to the bottom surface of the battery cell when the clamping blocks and the fixed clamp clamp the battery cell. The fixed clamp comprises: a second fixed plate; A plurality of reflective photoelectric sensors are fixed on the second fixed plate, and one reflective photoelectric sensor corresponds to one clamping block, which is used to detect whether there is a battery cell at the position corresponding to the clamping block.

9. The cell loading system of claim 1, wherein, The pushing online unit comprises: A pushing assembly is used to carry the battery cell and drive the battery cell to move in a first direction. A testing assembly is located at the end of the pushing assembly in the first direction, which is used to test the battery cell.

10. The cell loading system of claim 1, wherein, A plate chain line is located at the tail of the pushing assembly in the first direction, which receives the battery cell after being tested by the testing assembly and transmits the battery cell in a second direction different from the first direction. Further comprising: A cleaning unit is located between the incoming material unit and the pushing online unit, which is used to clean the battery cell grabbed by the grabbing unit.

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