Battery tab welding apparatus

Abstract

The application discloses a battery tab welding device, and the battery core moves linearly on the device along a welding advancing direction, and the device is sequentially provided with a feeding positioning area, a jig circulation area, a welding area, a rubberizing area and a discharging area along the welding advancing direction of the battery core; the feeding positioning area comprises a first feeding positioning area and a second feeding positioning area; the jig circulation area circulates the jig tray to the welding area, the welding area respectively welds the positive tab and the negative tab of the battery core on the jig tray to obtain a group battery core, and the jig circulation area circulates the group battery core to the rubberizing area; the rubberizing area moves the group battery core to a target rubberizing station, respectively rubbers the positive tab and the negative tab of the group battery core, and moves the rubberized group battery core to the discharging area to discharge; when the group battery core is moved, the rubberizing area provides anti-collapse support for the middle part of the group battery core. The application has high welding efficiency, high equipment welding accuracy, and can effectively improve the battery tab welding quality.

Description

Technical Field

[0001] This application relates to the field of ultrasonic welding technology, and in particular to a battery tab welding device. Background Technology

[0002] Ultrasonic welding equipment for battery tabs is mainly used to weld the tabs of two battery cells and the connecting piece together using an ultrasonic welding machine. Existing ultrasonic welding equipment for tabs basically only has welding function. For automatic shaping after welding, automatic glue application, real-time monitoring of welding quality, visual inspection, etc., different equipment or manual methods are required. The integration of the whole machine is low, the welding efficiency of the whole machine is not high, the production process lacks effective monitoring, and the equipment accuracy is low, which makes it impossible to guarantee product quality.

[0003] Existing technologies have failed to provide effective solutions to the problems of low welding efficiency and welding quality in the aforementioned battery welding equipment. Summary of the Invention

[0004] The purpose of this application is to provide a battery tab welding device to solve the problems of low welding efficiency and welding quality in battery welding devices.

[0005] To solve the above technical problems, this specification provides a battery tab welding device. The battery cell moves linearly along the welding direction on the battery tab welding device. The battery tab welding device is provided with a feeding and positioning area, a jig transfer area, a welding area, an adhesive application area and a unloading area in sequence along the battery cell welding direction. The loading and positioning area includes a first loading and positioning area and a second loading and positioning area. The first loading and positioning area is used to perform visual inspection and positioning of the battery cells and transfer the positioned battery cells to the fixture tray in the fixture transfer area. The second loading and positioning area is used to perform visual inspection and positioning of the connecting pieces and transfer the positioned battery cells to the fixture tray. The fixture transfer area transfers the fixture tray to the welding area, where the welding area performs positive electrode tab welding and negative electrode tab welding on the battery cells on the fixture tray to obtain a group of battery cells. The fixture transfer area then transfers the group of battery cells to the adhesive application area. The adhesive application area moves the group of battery cells to the target adhesive application station, applies adhesive to the positive and negative tabs of the group of battery cells respectively, and moves the group of battery cells after adhesive application to the unloading area for unloading. When moving the group of battery cells, the adhesive application area provides anti-collapse support for the middle of the group of battery cells.

[0006] In some embodiments, the first loading and positioning area includes a cell scanning station, a cell loading station, and a cell positioning station; The cell scanning station is used to scan and bind the cells and perform visual inspection on the cell tabs using a scanning component. The cell loading station is used to transfer the cells that have passed visual inspection to the cell positioning station by a first loading robot. The cell positioning station is used to position the cells and then transfer the positioned cells to the fixture tray by a second loading robot.

[0007] In some embodiments, the second feeding and positioning area includes a connecting piece tray feeding port, a connecting piece tray unloading port, a feeding lifting mechanism, an unloading lifting mechanism, a feeding robot, a connecting piece tray, a first front-to-back transfer mechanism, a left-to-right transfer mechanism, and a second front-to-back transfer mechanism. The connecting piece tray feeding port holds a connecting piece tray containing connecting pieces. The first front and rear transfer mechanism is used to send the connecting piece tray above the feeding and lifting mechanism, the feeding and lifting mechanism is used to lift the connecting piece tray from the first initial position to the target feeding position, and the feeding robot is used to transfer the connecting pieces on the connecting piece tray from the target feeding position to the fixture tray in the fixture transfer area. The left and right transfer mechanism is used to place the connected piece tray that has been loaded onto the top of the unloading lifting mechanism. The unloading lifting mechanism is used to lower the connected piece tray that has been loaded from the second initial position to the target unloading position. The second front and rear transfer mechanism is used to move the connected piece tray that has been loaded onto the top of the unloading lifting mechanism to the unloading port of the connected piece tray.

[0008] In some embodiments, the battery tab welding equipment includes two connecting plate tray loading ports, two connecting plate tray unloading ports, two loading lifting mechanisms, two unloading lifting mechanisms, two first front-to-back transfer mechanisms, two left-to-right transfer mechanisms, and two second front-to-back transfer mechanisms, which are respectively used for loading and unloading positive electrode connecting plates and loading and unloading negative electrode connecting plates.

[0009] In some embodiments, the second loading and positioning area further includes a connecting piece positioning station and a loading robot. The loading robot transfers the connecting piece on the connecting piece tray from the target loading position to the connecting piece positioning station for secondary positioning of the connecting piece. The connecting piece positioned at the connecting piece positioning station is then transferred to the fixture tray by the loading robot.

[0010] In some embodiments, the fixture transfer area includes multiple fixture trays, a first push-pull traverse mechanism, a second push-pull traverse mechanism, a pre-welding shaping station, a positive electrode welding station, a negative electrode welding station, a post-welding shaping station, and a cell transfer station. The fixture transfer area includes parallel first and second fixture transfer lines. The welding area includes a positive electrode welding area and a negative electrode welding area. The positive electrode welding area is located on the side of the fixture transfer area closer to the first fixture transfer line, and the negative electrode welding area is located on the side of the fixture transfer area closer to the second fixture transfer line. The multiple fixture trays are sequentially distributed along the movement direction of the fixture transfer lines in the fixture transfer area. The first push-pull lateral movement mechanism and the second push-pull lateral movement mechanism are located at both ends of the parallel fixture transfer lines, respectively, and are used to provide push-pull force along the fixture transfer line direction or lateral movement force for position conversion between the two fixture transfer lines to the fixture trays on the first fixture transfer line and the second fixture transfer line.

[0011] In some embodiments, a wrap-around dust removal component is installed around the welding components in the welding area, the wrap-around dust removal component being used to remove dust from the welding portion of the battery cell in real time during the welding process.

[0012] In some embodiments, the enclosed dust removal component includes a double-layer upper dust removal hood and a double-layer lower dust removal hood; The double-layer dust removal hood is installed around the welding head of the welding component in the welding area, is electrically connected to the area where the battery cell welding part is located and the welding head, and moves with the welding head to remove dust above the battery cell welding part in real time during the welding process. The double-layer lower dust removal hood is installed on the base of the welding area, electrically connected to the area where the battery cell welding part is located, and moves with the welding head to remove dust from below the battery cell welding part in real time during the welding process.

[0013] In some embodiments, the adhesive application area includes multiple adhesive application stations, a material feeding station, a lateral transfer mechanism, and multiple adhesive application components. The lateral transfer mechanism is provided with a crossbar, which controls the lateral movement of the crossbar to transfer the grouped battery cells at each station in the adhesive application area. During the transfer of the grouped battery cells, the crossbar provides anti-collapse support to the middle of the grouped battery cells.

[0014] In some embodiments, each adhesive application station is provided with two electric cylinders below both sides of the crossbar. The lifting surfaces of the two electric cylinders are at the same horizontal plane. The electric cylinders are used to lift the group of battery cells after the group of battery cells reaches the corresponding station, so that the positive or negative electrode tabs of the group of battery cells can be applied with adhesive by the corresponding adhesive application component.

[0015] In some embodiments, the adhesive application area includes a first adhesive application station, a second adhesive application station, a positive electrode adhesive application mechanism, and a negative electrode adhesive application mechanism. The positive electrode adhesive applicator is installed on one side of the first adhesive applicator station. After the group of battery cells arrives at the first adhesive applicator station, the positive electrode adhesive applicator moves to the top of the first adhesive applicator station to apply adhesive to the positive electrode tabs of the group of battery cells at the first adhesive applicator station. The negative electrode adhesive applicator is installed on one side of the second adhesive applicator station. After the battery cells arrive at the second adhesive applicator station, the negative electrode adhesive applicator moves to the top of the second adhesive applicator station to apply adhesive to the negative electrode tabs of the battery cells at the second adhesive applicator station.

[0016] The battery tab welding equipment provided in this manual features a battery cell that moves linearly along the welding direction. The equipment is sequentially configured with a loading and positioning area, a fixture transfer area, a welding area, an adhesive application area, and an unloading area along this welding direction. The loading and positioning area includes a first loading and positioning area and a second loading and positioning area. The first loading and positioning area is used for visual inspection and positioning of the battery cell, and then transferring the positioned battery cell to the fixture tray. The second loading and positioning area is used for loading and positioning the connecting tabs, and then transferring the positioned connecting tabs to the fixture tray. The cells are transferred to a fixture tray; the fixture transfer area transfers the fixture tray to the welding area, where positive and negative tabs are welded onto the cells on the fixture tray to form a group of cells. The fixture transfer area then transfers the group of cells to the adhesive application area; the adhesive application area moves the group of cells to the target adhesive application station, where the positive and negative tabs of the group of cells are applied with adhesive, and the glued group of cells is then moved to the unloading area for unloading. During the movement of the group of cells, the adhesive application area provides anti-collapse support for the middle of the group of cells. This application, through the setting of a feeding and positioning area, a fixture transfer area, a welding area, and an adhesive application area, can automatically realize visual inspection and positioning of battery cells, visual inspection and positioning of connecting pieces, and transfer welding of battery cells. Furthermore, during the movement of battery cells in the adhesive application area, it can provide anti-collapse support for the middle of the welded battery cell group to prevent the group of battery cells from collapsing before adhesive application, thereby improving adhesive application quality, reducing the number of broken tab layers, and achieving high overall integration, high welding efficiency, and high welding accuracy, effectively improving the welding quality of battery tabs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 The diagram shown is a schematic of a battery tab welding device provided in an embodiment of this application; Figure 2 The diagram shown is a schematic of the second feeding and positioning area provided in an embodiment of this application; Figure 3 The diagram shown is a schematic diagram of the fixture transfer area provided in an embodiment of this application; Figure 4 The diagram shown is a schematic representation of a welding component provided in an embodiment of this application. Figure 5 The diagram shown is a schematic diagram of a dust removal component provided in an embodiment of this application; Figure 6 The diagram shown is a schematic diagram of the adhesive application area provided in an embodiment of this application; Figure 7 The diagram shown is a schematic of the upper adhesive application area provided in an embodiment of this application. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application.

[0020] As mentioned above, current battery welding equipment suffers from low welding efficiency and quality. To address these issues, this application provides a battery tab welding device. The battery cell moves linearly along the welding direction on the device. The device is sequentially configured with a loading and positioning area, a fixture transfer area, a welding area, an adhesive application area, and a unloading area along the battery cell welding direction. The loading and positioning area includes a first loading and positioning area and a second loading and positioning area. The first loading and positioning area is used for visual inspection and positioning of the battery cell, and then transferring the positioned battery cell to the fixture tray. The second loading and positioning area is used for connecting... The wafers are loaded and positioned, and the positioned connecting wafers are transferred to the fixture tray. The fixture transfer area transfers the fixture tray to the welding area, where the positive and negative electrodes of the cells on the fixture tray are welded to obtain a group of cells. The fixture transfer area then transfers the group of cells to the adhesive application area. The adhesive application area moves the group of cells to the target adhesive application station, where the positive and negative electrodes of the group of cells are applied with adhesive. The glued group of cells is then moved to the unloading area for unloading. When moving the group of cells, the adhesive application area provides anti-collapse support for the middle of the group of cells.

[0021] This application, through the setup of a feeding and positioning area, a fixture transfer area, a welding area, and an adhesive application area, can automatically perform visual inspection and positioning of battery cells, feeding and positioning of connecting pieces, and transfer welding of battery cells. Furthermore, during the movement of assembled battery cells in the adhesive application area, it can provide anti-collapse support to the center of the welded battery cell assembly, preventing central collapse before adhesive application and improving adhesive application quality. The battery tab welding equipment boasts high integration, high welding efficiency, and high welding precision, effectively enhancing the quality of battery tab welding.

[0022] The battery tab welding equipment in the embodiments of this application will now be described in conjunction with the accompanying drawings.

[0023] Figure 1 The diagram shown is a schematic of a battery tab welding device provided in an embodiment of this application.

[0024] like Figure 1 As shown, for the battery tab welding equipment 100, the battery cell moves linearly along the welding direction on the battery tab welding equipment 100. The battery tab welding equipment 100 is provided with a material loading and positioning area, a jig transfer area 103, and a welding area (e.g., along the battery cell welding direction) in sequence. Figure 1 The positive electrode welding area 104 and negative electrode welding area 105, the adhesive application area 106 and the material feeding area 107 are included.

[0025] The loading and positioning area includes a first loading and positioning area 101 and a second loading and positioning area 102. The first loading and positioning area 101 is used to perform loading visual inspection and positioning of the battery cells, and transfer the positioned battery cells to the fixture tray of the fixture transfer area 103. The second loading and positioning area 102 is used to perform loading visual inspection and positioning of the connecting pieces, and transfer the positioned connecting pieces to the fixture tray.

[0026] It is understandable that the transfer of the positioned battery cell and the positioned connecting piece to the fixture tray can be controlled by controlling the order in which the first loading positioning area 101 and the second loading positioning area 102 transfer the battery cell or connecting piece, thereby controlling the vertical position relationship of the battery cell and the connecting piece on the fixture tray. For example, the second loading positioning area 102 first transfers the positioned connecting piece to the fixture tray, and then the first loading positioning area 101 transfers the positioned battery cell to the fixture tray where the connecting piece is placed. The relative position of the battery cell and the connecting piece transferred to the fixture tray can be controlled by controlling the target position of the first loading positioning area 101 and the second loading positioning area 102 to transfer the battery cell or the connecting piece.

[0027] In some embodiments, visual inspection of the battery cell may include detecting whether the positions of the positive and negative terminals of the battery cell are correct, whether the battery cell tabs are defective, and whether the battery cell itself is defective.

[0028] In some embodiments, the first loading and positioning area 101 includes a cell scanning station 1011, a cell loading station 1012, and a cell positioning station 1013. The cell scanning station 1011 is used to scan and bind the cells using a scanning component and to visually inspect the cell tabs. The cell loading station 1012 is used to transfer the visually inspected cells to the cell positioning station 1013 using a first loading robot. The cell positioning station 1013 is used to position the cells and transfer the positioned cells to the fixture tray using a second loading robot.

[0029] Furthermore, the battery tab welding equipment 100 also includes a conveyor line between the cell scanning station 1011 and the cell loading station 1012; thus, cells that pass visual inspection (OK) at the cell scanning station 1011 can be conveyed to the cell loading station 1012 via the conveyor line, so that the cells that pass visual inspection can be loaded to the cell positioning station 1013 by the first loading robot at the cell loading station 1012; cells that fail visual inspection (NG) at the cell scanning station 1011 can be conveyed to the defective product (NG) storage station via the conveyor line, where the operator can further inspect and judge the cells in the defective product storage station.

[0030] In some embodiments, the workflow of the first loading and positioning area 101 in performing visual inspection and positioning of the battery cells, and transferring the positioned battery cells to the fixture tray, may include: The battery cells at the feeding port are conveyed to the battery cell scanning station 1011. The scanning component at the battery cell scanning station 1011 scans and binds the battery cells and performs visual inspection on the battery cell tabs. The battery cells that pass the visual inspection are transferred to the battery cell feeding station 1012 via the conveyor line, while the battery cells that fail the visual inspection are transferred to the defective product storage station via the conveyor line. The battery cell loading station 1012 uses a first loading robot to transfer the battery cell to the battery cell positioning station 1013. The battery cell positioning station 1013 performs secondary positioning on the battery cell. After positioning, the battery cell is transferred to the fixture tray by a second loading robot.

[0031] The fixture transfer area 103 transfers the fixture tray to the welding area (including the positive electrode welding area 104 and the negative electrode welding area 105). The welding area performs positive electrode tab welding and negative electrode tab welding on the battery cells on the fixture tray to obtain a group of battery cells. The fixture transfer area 103 then transfers the group of battery cells to the adhesive application area 106.

[0032] In some embodiments, the battery tab welding equipment 100 may further include a pre-welding shaping component, a post-welding shaping component, and a welding monitoring component. Before the fixture transfer area 103 transfers the fixture tray to the positive electrode welding area, the pre-welding shaping component, such as a pre-welding shaping pressure plate, shapes the battery cell tabs. Then, the shaped battery cells are sequentially transferred to the positive electrode welding area 104 and the negative electrode welding area 105 for positive and negative electrode tab welding. During the tab welding process, the welding monitoring component can comprehensively judge the entire welding process and the welding parameters of the welding components, for example, by using preset reference welding parameter values, to ensure the quality of battery cell welding.

[0033] In some embodiments, a wrap-around dust removal component is installed around the welding components of the welding area (including the welding components of the positive electrode welding area 104 and the negative electrode welding area 105). The wrap-around dust removal component can achieve wrap-around dust removal of the cell welding area, and can perform real-time dust removal on the cell welding part during the welding process to ensure a dust-free environment during the welding process, ensure the dust removal effect, improve the cell welding quality, and improve the quality of the welded battery cells.

[0034] The adhesive application area 106 can move the battery cells to the target adhesive application station, apply adhesive to the positive and negative tabs of the battery cells, and then move the battery cells to the unloading area 107 for unloading. When moving the battery cells, the adhesive application area 106 provides anti-collapse support for the middle of the battery cells.

[0035] The following section, with reference to the accompanying drawings, provides a detailed description of each area of ​​the battery tab welding equipment in the embodiments of this application.

[0036] Figure 2 The diagram shown is a schematic representation of the second feeding and positioning area provided in an embodiment of this application. Figure 2 As shown, in some embodiments, the second loading and positioning area 102 includes a loading port for the connecting sheet tray (e.g., Figure 2 The positive electrode connecting plate tray loading port 201 and the negative electrode connecting plate tray loading port 202), and the connecting plate tray unloading port (e.g.) Figure 2 The positive electrode connecting plate tray discharge port 203 and the negative electrode connecting plate tray discharge port 204, and the feeding and lifting mechanism (e.g. Figure 2 The feeding lifting mechanism 205 and feeding lifting mechanism 206, and the unloading lifting mechanism (e.g.) Figure 2 The unloading lifting mechanism 207 and unloading lifting mechanism 208, the loading robot 209, the connecting plate tray 210, and the first front and rear transfer mechanism (e.g. Figure 2 The front and rear transplanting mechanisms 211 and 212, and the left and right transplanting mechanisms (e.g.) Figure 2The left and right transplanting mechanisms 215 and 216 in the middle), and the second front and rear transplanting mechanism (e.g. Figure 2 The front and rear transplanting mechanisms 213 and 214 in the middle, the connecting plate tray loading port of the connecting plate tray is placed with the connecting plate tray; The first front and rear transfer mechanism is used to send the connecting piece tray 210 above the feeding and lifting mechanism. The feeding and lifting mechanism is used to lift the connecting piece tray 210 from the first initial position to the target feeding position. The feeding robot 209 is used to transfer the connecting pieces on the connecting piece tray from the target feeding position to the fixture tray in the fixture transfer area. The left and right transfer mechanism is used to place the connected piece tray that has been loaded onto the top of the unloading lifting mechanism. The unloading lifting mechanism is used to lower the connected piece tray that has been loaded from the second initial position to the target unloading position. The second front and rear transfer mechanism is used to move the connected piece tray that has been loaded onto the top of the unloading lifting mechanism to the unloading port of the connected piece tray.

[0037] It can be understood that the first initial position is the position where the feeding lifting mechanism can receive the connecting piece tray 210 from the first front and rear transfer mechanism, and the target feeding position can be the position where the feeding robot can pick up the connecting piece on the connecting piece tray 210; the second initial position is the position where the unloading lifting mechanism can receive the empty connecting piece tray 210 from the left and right transfer mechanism, and the target unloading position can be the position where the second front and rear transfer mechanism can move the empty connecting piece tray 210 from the unloading lifting mechanism.

[0038] In some embodiments, the workflow of the second loading and positioning area 102 in performing visual inspection and positioning of the connecting piece, and transferring the positioned connecting piece to the fixture tray, may include: After the battery tab welding equipment 100 is started, the first front and rear transfer mechanism sends the connecting piece tray 210 above the feeding and lifting mechanism. The feeding and lifting mechanism lifts the connecting piece tray from the first initial position to the target feeding position. The feeding robot transfers the connecting pieces on the connecting piece tray from the target feeding position to the fixture tray in the fixture transfer area. After the loading is completed, the left and right transfer mechanisms place the loaded connecting piece tray above the unloading lifting mechanism. The loading lifting mechanism descends from the target loading position back to the first initial position. The unloading lifting mechanism descends the loaded connecting piece tray from the second initial position to the target unloading position. The second front and rear transfer mechanisms move the loaded connecting piece tray above the unloading lifting mechanism to the connecting piece tray unloading port. The unloading lifting mechanism returns from the target unloading position to the second initial position.

[0039] In some embodiments, the battery tab welding equipment 100 includes two connecting tab tray loading ports, two connecting tab tray unloading ports, two loading lifting mechanisms, two unloading lifting mechanisms, two first front-to-back transfer mechanisms, two left-to-right transfer mechanisms, and two second front-to-back transfer mechanisms, respectively used for loading and unloading positive electrode connecting tabs and negative electrode connecting tabs. For example, Figure 2 As shown, the second feeding and positioning area 102 may include a positive electrode connecting plate tray feeding port 201, a negative electrode connecting plate tray feeding port 202, a positive electrode connecting plate tray unloading port 203, a negative electrode connecting plate tray unloading port 204, a feeding lifting mechanism 205, a feeding lifting mechanism 206, an unloading lifting mechanism 207, an unloading lifting mechanism 208, a front and rear transfer mechanism 211, a front and rear transfer mechanism 212, a left and right transfer mechanism 215, a left and right transfer mechanism 216, a front and rear transfer mechanism 213, and a front and rear transfer mechanism 214. The loading and unloading of positive electrode connectors can be achieved through the coordinated work of the positive electrode connector tray loading port 201, the front and rear transfer mechanism 211, the loading and lifting mechanism 205, the left and right transfer mechanism 215, the unloading and lifting mechanism 207, the front and rear transfer mechanism 213, the positive electrode connector tray unloading port 203, and the loading robot 209. The loading and unloading of negative electrode connectors can be achieved through the coordinated work of the negative electrode connector tray loading port 202, the front and rear transfer mechanism 212, the loading and lifting mechanism 206, the left and right transfer mechanism 216, the unloading and lifting mechanism 208, the front and rear transfer mechanism 214, the negative electrode connector tray unloading port 204, and the loading robot 209.

[0040] In some embodiments, the second loading and positioning area 102 may further include a vision inspection station, a connecting piece positioning station, and a loading robot. The loading robot transfers the connecting pieces on the connecting piece tray from the target loading position to the vision inspection station for vision inspection of the connecting pieces. Then, the connecting pieces that have passed the vision inspection are moved from the vision inspection station to the connecting piece positioning station for secondary positioning of the connecting pieces. The connecting pieces positioned at the connecting piece positioning station are transferred to the fixture tray by the loading robot.

[0041] The following is combined with Figure 2 The specific workflow of the second feeding and positioning area 102 in this embodiment is described below. (Reference) Figure 2 As shown, the specific workflow of the second feeding and positioning area 102 is as follows: (1) The operator places the pre-placed connecting plate trays into the positive electrode connecting plate tray loading port and the negative electrode connecting plate tray loading port respectively. Each loading port can have 8 layers of connecting plate trays, that is, 8 layers of connecting plate trays form a group. Each time the loading lifting mechanism lifts a group of connecting plate trays. (2) When the operator presses the start button, the front and rear transfer mechanism 211 can send the connecting plate tray with the positive electrode connecting plate into the upper part of the feeding and lifting mechanism 205, and the front and rear transfer mechanism 212 can send the connecting plate tray with the negative electrode connecting plate into the upper part of the feeding and lifting mechanism 206. The feeding and lifting mechanism 205 and the feeding and lifting mechanism 206 respectively lift the connecting plate tray to the corresponding target feeding height position and stop. (3) The loading robot 209 receives the loading instruction, picks up the positive electrode connecting piece and the negative electrode connecting piece in sequence and places them in the connecting piece positioning station. The connecting piece after being positioned in the connecting piece positioning station is transferred by the loading robot to the fixture tray in the fixture transfer area. (4) When all the connecting pieces in a tray are picked up, the left and right transfer mechanism 215 equipped with suction cups will pick up the empty connecting piece tray on the feeding lifting mechanism 205 and place it above the unloading lifting mechanism 207. The left and right transfer mechanism 216 equipped with suction cups will pick up the empty connecting piece tray on the feeding lifting mechanism 206 and place it above the unloading lifting mechanism 208. (5) After all the connecting piece trays containing the positive and negative connecting pieces are loaded, the unloading lifting mechanism 207 and the unloading lifting mechanism 208 lower the empty connecting piece trays to the target unloading position respectively. (6) The connecting piece tray on the feeding lifting mechanism 207 moves to the positive connecting piece tray feeding port 203 under the action of the front and rear transfer mechanism 213, and the connecting piece tray on the feeding lifting mechanism 208 moves to the negative connecting piece tray feeding port 204 under the action of the front and rear transfer mechanism 214; this cycle continues to feed and position the connecting pieces.

[0042] Figure 3 The diagram shown is a schematic representation of a fixture transfer area provided in an embodiment of this application. (In conjunction with...) Figure 1 and Figure 3 As shown, in some embodiments, the fixture transfer area 103 includes a plurality of fixture trays (e.g. Figure 3 Fixture trays 301 to 306, first push-pull traverse mechanism 307, second push-pull traverse mechanism 308, pre-welding shaping station 309, positive electrode welding station 310, negative electrode welding station 311, post-welding shaping station (see reference) Figure 3 The station corresponding to jig tray 305) and the cell transfer station (see reference). Figure 3The fixture transfer area 103 includes a first fixture transfer line 31 and a second fixture transfer line 32 that are parallel to each other. The welding area includes a positive electrode welding area 104 and a negative electrode welding area 105. The positive electrode welding area 104 is located on the side of the fixture transfer area 103 close to the first fixture transfer line 31, and the negative electrode welding area 105 is located on the side of the fixture transfer area 103 close to the second fixture transfer line 32. The plurality of fixture trays are distributed sequentially along the movement direction of the fixture transfer lines of the fixture transfer area 103. The first push-pull lateral movement mechanism 307 and the second push-pull lateral movement mechanism 308 are located at both ends of the parallel fixture transfer lines, respectively, and are used to provide push-pull force along the fixture transfer line direction or lateral movement force for position conversion between the two fixture transfer lines to the fixture trays on the first fixture transfer line 31 and the second fixture transfer line 32.

[0043] In some embodiments, Figure 3 The pre-welding shaping station 309 and the positive electrode welding station 310 shown can be one station, namely the positive electrode shaping and welding station. The pre-welding shaping component can be used to shape the battery cell tabs at this station before welding, and then the positive electrode welding component can be used to weld the positive electrode tabs of the shaped battery cell at this station.

[0044] In some embodiments, during the process of welding the positive and negative tabs of the battery cells on the fixture tray to obtain a group of battery cells, the fixture tray can be moved between different workstations under the action of the first push-pull traverse mechanism 307 and the second push-pull traverse mechanism 308. The specific workflow may include: The fixture tray on the first fixture transfer line 31, which holds the connecting piece and the battery cell, is moved to the pre-welding shaping station 309. The battery cell tabs are pre-welded and shaped by the first shaping component of the pre-welding shaping station 309. At the same time, the positioned battery cell and connecting piece are transferred to the fixture tray on the first fixture transfer line 31. The jig tray holding the shaped battery cell and connecting piece in the pre-welding shaping station 309 is moved to the positive electrode welding station 310. When a battery cell to be welded is detected in the positive electrode welding station 310, the positive electrode welding component in the positive electrode welding area 104 is moved to the positive electrode welding station 310 to weld the positive electrode tab of the battery cell. The positive electrode welding station 310 of the first fixture transfer line 31, which holds the battery cell and connecting piece that have been welded, is transferred to the negative electrode welding station 311 of the second fixture transfer line 32. The negative electrode tab of the battery cell is welded through the negative electrode welding component of the negative electrode welding area 105 to obtain a group of battery cells. The fixture tray containing the grouped battery cells on the negative electrode welding station 311 of the second fixture transfer line 32 is moved to the post-weld shaping station, and the battery cell tabs are shaped by the second shaping component of the post-weld shaping station. The fixture tray containing the shaped battery cells placed at the post-weld shaping station on the second fixture transfer line 32 is moved to the battery cell transfer station so that the battery cells can be transferred to the adhesive application area 106 at the battery cell transfer station. The jig tray after the grouped battery cells are transferred from the second jig transfer line 32 is transferred to the first jig transfer line 31.

[0045] The following is combined with Figure 3 The above-mentioned flow and welding process will be further explained. It is understood that there are corresponding jig trays above different workstations in the figure. In this embodiment, the jig trays of different workstations are described with different numbers as an example. That is, the jig tray 301 of the pre-welding shaping workstation 309 moves forward one workstation to the positive electrode welding workstation 310. At this time, the jig tray that loads the shaped battery cell in the jig tray 301 is called jig tray 302.

[0046] refer to Figure 3As shown, in some embodiments, a total of 7 fixture trays are provided on the fixture transfer line of the fixture transfer area 103. These trays can move along the track below them. The battery cells and connecting pieces that have been positioned in the previous process can be placed on the fixture trays 301. At this time, the fixture trays 301 are located at the pre-welding shaping station 309. The electrode tabs can be shaped by pressing down the shaping plate at this station. Under the push and pull of the first push-pull lateral movement mechanism 307 and the second push-pull lateral movement mechanism 308, the fixture trays 301 move forward one station, that is, move to the positive electrode welding station. 310 performs pre-welding shaping. The positive electrode welding component welds the positive electrode tabs of the battery cells on the fixture tray 302 at this station, and can perform real-time dust removal and welding monitoring during the welding process. Under the push and pull of the first push-pull lateral movement mechanism 307 and the second push-pull lateral movement mechanism 308, the fixture tray 302 moves forward one station, that is, moves to the station corresponding to the fixture tray 303. At this time, the fixture tray 303 needs to be moved from the first fixture transfer line 31 to the second fixture transfer line under the lateral movement force of the second push-pull lateral movement mechanism 308. 32, seamlessly connected to the second fixture transfer line 32, and under the push and pull of the first push-pull traverse mechanism 307 and the second push-pull traverse mechanism 308, the fixture tray 303 moves forward one station to the negative electrode welding station 311; the negative electrode welding component of the negative electrode welding station 311 can weld the negative electrode tabs of the battery cells on the fixture tray 302 at this station, and can perform real-time dust removal and welding monitoring during the welding process; then, under the push and pull of the first push-pull traverse mechanism 307 and the second push-pull traverse mechanism 308, the fixture The tray 304 moves forward one station, that is, it moves to the post-weld shaping station corresponding to the fixture tray 305. The electrode tabs can be shaped by pressing down the shaping plate at this station. Under the push and pull of the first push-pull transverse mechanism 307 and the second push-pull transverse mechanism 308, the fixture tray 305 where the post-weld shaped battery cell is located moves forward one station, that is, it moves to the battery cell transfer station where the fixture tray 306 is located. At this time, the battery cell transfer robot in the adhesive application area 106 can transfer the group of battery cells on the fixture tray 306 to the adhesive application area 106.

[0047] Figure 4 The diagram shown is a schematic of a welding component provided in an embodiment of this application.

[0048] Figure 5 The diagram shown is a schematic diagram of a dust removal component provided in an embodiment of this application.

[0049] like Figure 4 and Figure 5As shown, in some embodiments, a wrap-around dust removal component is installed around the welding parts 401 of the positive electrode welding area 104 and the negative electrode welding area 105. This component can remove dust from the welding parts of the battery cell in real time during the welding process. The wrap-around dust removal component includes a double-layer upper dust removal cover 402 and a double-layer lower dust removal cover 404. The double-layer upper dust removal cover 404 is installed around the welding head 403 of the welding parts 401 in the welding area. It is electrically connected to the area where the welding parts of the battery cell 405 are located and to the welding head 403. It moves with the welding head 403 and is used to remove dust from the welding parts of the battery cell 405 in real time during the welding process. The double-layer lower dust removal cover 404 is installed on the base of the welding area, that is, below the battery cell 405. It is electrically connected to the area where the welding parts of the battery cell 405 are located and moves with the welding head 403. It is used to remove dust from the welding parts of the battery cell 405 in real time during the welding process.

[0050] The following section uses the airflow direction during the operation of the double-layer upper dust collector hood 402 as an example to introduce the working process of the dust collection component. (Reference) Figure 5 A cross-sectional view of the double-layer upper dust collector hood 402. The double-layer upper dust collector hood 402 may include dust collection pipes 4021 and 4022. During the welding process when the welding head 403 is close to the welding part of the battery cell 405, the dust collection device in the double-layer upper dust collector hood 402 is activated, and the dust above the welding part of the battery cell 405 flows along... Figure 5 The black arrows indicate movement towards dust removal pipes 4021 and 4022, enabling real-time dust removal during the welding process.

[0051] It is understandable that the double-layer lower dust collector 404 has a similar structure to the double-layer upper dust collector 402, and the dust flow direction is opposite to that inside the double-layer upper dust collector 402, so as to remove the dust below the welding part of the battery cell 405 in real time during the welding process.

[0052] Figure 6 The diagram shown is a schematic of the adhesive application area provided in an embodiment of this application. Figure 7 The diagram shown is a schematic of the upper adhesive application area provided in an embodiment of this application.

[0053] like Figure 6 and Figure 7 As shown, in some embodiments, the adhesive application area 106 includes multiple adhesive application stations (e.g., Figure 6 The adhesive application stations 602 and 603, the feeding station 601, the transverse transfer mechanism, and multiple adhesive application components (e.g., Figure 6The positive electrode adhesive application mechanism 604 and the negative electrode adhesive application mechanism 605 are included. The lateral transfer mechanism is equipped with a crossbar 606. The lateral transfer mechanism controls the lateral movement of the crossbar 606 to transfer the group of battery cells at each station in the adhesive application area 106. The crossbar 606 provides anti-collapse support for the middle of the group of battery cells during the transfer process.

[0054] In some embodiments, each adhesive application station is provided with two electric cylinders 607 below both sides of the crossbar. The lifting surfaces of the two electric cylinders are at the same horizontal plane. The electric cylinders 607 are used to lift the group of battery cells after the group of battery cells reaches the corresponding station, so that the positive or negative electrode tabs of the group of battery cells can be applied with adhesive by the corresponding adhesive application component.

[0055] In some embodiments, the adhesive application area includes an adhesive application station 602, an adhesive application station 603, a positive electrode adhesive application mechanism 604, and a negative electrode adhesive application mechanism 605. The positive electrode adhesive application mechanism 604 is installed on one side of the adhesive application station 602 so that after the group of battery cells arrives at the first adhesive application station, the positive electrode adhesive application mechanism 604 moves above the adhesive application station 602 to apply adhesive to the positive electrode tabs of the group of battery cells at the adhesive application station 602. The negative electrode adhesive application mechanism 605 is installed on one side of the adhesive application station 603 so that after the group of battery cells arrives at the second adhesive application station, the negative electrode adhesive application mechanism 605 moves above the adhesive application station 603 to apply adhesive to the negative electrode tabs of the group of battery cells at the adhesive application station 603.

[0056] It is understandable that the crossbar 606 is an added support and movable transducer between the feeding station and multiple adhesive application stations. It can pass through multiple stations in the adhesive application area and divide the lifting plane of the electric cylinder 607 in the adhesive application area in two, ensuring that there is no interference between the operation of the crossbar and the electric cylinder. When the battery cell is placed in any station corresponding to the crossbar on the transverse transfer mechanism, the crossbar can lift the middle of the battery cell and support it, ensuring the accuracy and quality of subsequent adhesive application of the battery cell.

[0057] The following is combined with Figure 6 and Figure 7 The workflow of the adhesive application area in the embodiments of this application is described. (Reference) Figure 6 and Figure 7 As shown, in some embodiments, the adhesive application area 106, during the process of moving the group of battery cells to the target adhesive application station to apply adhesive to the positive and negative tabs of the group of battery cells respectively, and then moving the group of battery cells with adhesive applied to the unloading area for unloading, may specifically include: The battery cell transfer robot at loading station 601 transfers the grouped battery cells on the jig tray to the first crossbar of crossbar 606 located at loading station 601. Under the action of the transverse transfer mechanism, the first crossbar moves the group of battery cells at the feeding station 601 to the adhesive application station 602. The two electric cylinders 607 of the adhesive application station 602 rise and lift the group of battery cells on the first crossbar to the first adhesive application position through the lifting surfaces of the two electric cylinders of the adhesive application station 602. The positive electrode adhesive application mechanism 604 applies adhesive to the positive electrode tabs of the grouped cells at the first adhesive application position, and during the adhesive application process of the positive electrode adhesive application mechanism, the lateral transfer mechanism moves the first crossbar back to the loading station 601. After the positive electrode tabs of the grouped cells are glued, the two electric cylinders 607 of the glue application station 602 are lowered to place the grouped cells on the lifting surface of the two electric cylinders 607 of the glue application station 602 onto the second crossbar of the crossbar 606 located in the glue application station 602. Under the action of the transverse transfer mechanism, the second crossbar moves the group of battery cells at the adhesive application station 602 to the adhesive application station 603. The two electric cylinders 607 of the adhesive application station 603 rise, and the group of battery cells on the second crossbar is lifted and moved to the second adhesive application position through the lifting surface of the two electric cylinders 607 of the adhesive application station 603. The negative electrode adhesive applicator 605 applies adhesive to the negative electrode tabs of the grouped cells at the second adhesive applicator position, and during the adhesive application process of the negative electrode adhesive applicator 605, the transverse transfer mechanism moves the second crossbar back to the adhesive application station 602. After the negative electrode tabs of the grouped battery cells are glued, the two electric cylinders 607 of the glue application station 603 are lowered to place the grouped battery cells on the lifting surface of the two electric cylinders of the glue application station 603 onto the third crossbar of the crossbar 606 located in the glue application station 603. Under the action of the transverse transfer mechanism, the third crossbar moves the group of battery cells after adhesive application at the adhesive application station 603 to the unloading area 107 for unloading.

[0058] It is understandable that during the adhesive application process, the crossbar at the adhesive application station can be retracted one station by the action of the transverse transfer mechanism, so that the feeding station 601 can feed the next batch of battery cells to be adhesively applied.

[0059] The following is combined with Figure 6 The reciprocating movement of the crossbar in the above-mentioned adhesive application area workflow will be further explained. For example... Figure 6As shown, in some embodiments, the ultrasonically welded battery cells are placed on the loading station 601 by a battery cell transfer robot; the lateral transfer mechanism controls the crossbar 606 to move forward one station to the right, i.e., to the adhesive application station 602; the lateral transfer mechanism can be a linear motion module to drive the crossbar 606 to move back and forth, with each movement involving only one station displacement; before the crossbar moves, the positive electrode adhesive application mechanism 604 has prepared the adhesive tape and is waiting above the adhesive application station 602. When the station detects that a battery cell has been transferred, the electric cylinder 607 below the adhesive application station 602 lifts the battery cells, and then the upper and lower adhesive application components of the positive electrode adhesive application mechanism 604 clamp the positive electrode tabs of the battery cells and apply adhesive. During the adhesive application process, the lateral transfer mechanism can drive the crossbar 606 back to the loading station 601, i.e. Figure 6 The initial position is shown. After the system detects that the tape has been applied, the group of battery cells is repositioned onto the crossbar on the tape application station 602 by the action of the electric cylinder 607. At this time, a new group of welded battery cells has been placed on the loading station 601 by the battery cell transfer robot. The lateral transfer mechanism moves the crossbar 606 one station to the right. At this time, the electric cylinders below the tape application station 602 and the electric cylinders below the tape application station 603 simultaneously lift the two groups of battery cells. The positive electrode tape application mechanism 604 and the negative electrode tape application mechanism 605 simultaneously apply tape to the positive and negative electrode tabs of the two groups of battery cells. While the positive electrode tape application mechanism 604 and the negative electrode tape application mechanism 605 are applying tape, the lateral transfer mechanism below moves the crossbar 606 back. Figure 6 At the initial position shown, the battery cell transfer robot continues to place new groups of battery cells at the feeding station 601. At this time, the battery cells on the adhesive application station 602 and adhesive application station 603, which have been glued, are also placed on the crossbar 606 of the transverse transfer mechanism of adhesive application station 602 and adhesive application station 603 under the action of the electric cylinder. (7) At this time, the battery cells of the three stations move one station to the right along the horizontal bar 606 of the transverse transfer mechanism. The group of battery cells of the adhesive application station 603 enters the unloading area 107 and is picked up and unloaded by the unloading robot. The adhesive application area 106 continuously repeats the above adhesive application process to apply adhesive to the group of battery cells.

[0060] To better understand the overall workflow of the battery tab welding equipment 100 in this application embodiment, the following will be combined with... Figure 1 The workflow of the battery tab welding equipment in this application embodiment is further described below: (1) The A-side and B-side cells enter the cell scanning station 1011 through the conveyor line. The scanning component scans and binds the cells and performs visual inspection on the tabs. Cells that are visually inspected but are not good are transferred to the NG storage station. Cells that are visually inspected but are not good are transferred to the cell loading station 1012. (2) Qualified battery cells are loaded onto the battery cell positioning station 1013 by the loading robot for secondary positioning; (3) The connecting piece is transferred from the feeding robot in the second feeding and positioning area 102 to the fixture tray of the first fixture transfer line 31 in the fixture transfer area 103; (4) The loading robot of the first fixture transfer line 31 or the first loading and positioning area 101 transfers the battery cell that has completed the secondary positioning to the fixture tray of the first fixture transfer line 31. (5) The first fixture transfer line 31 in the fixture transfer area 103 transfers one station and transfers the fixture tray to the pre-welding shaping station; (6) The pre-welding shaping plate of the pre-welding shaping station is pressed down to shape the battery cell tabs; after shaping, the first fixture transfer line 31 of the fixture transfer area 103 transfers to one station and transfers the fixture tray to the positive electrode welding station. (7) The welding components of the positive electrode welding area 104 weld the positive electrode tab. During the welding process, the dust removal components installed on the welding head remove dust from the welding part, and the welding monitoring components make a comprehensive judgment on the entire welding process and welding parameters to ensure the welding quality of the battery cell. The dust removal components adopt the method of installing dust removal covers around the welding head to ensure the dust removal effect. After the positive electrode welding is completed, the welding components of the positive electrode welding area 104 return to the initial position. (8) The first fixture transfer line 31 of the fixture transfer area 103 transfers one station, and under the action of the second push-pull transverse transfer mechanism, the fixture tray is transferred to the negative electrode welding station of the second fixture transfer line 32; (9) The welding component in the negative electrode welding area 105 welds the negative electrode tab. During the welding process, the dust removal component installed on the welding head removes dust from the welding part, and the welding monitoring component makes a comprehensive judgment on the entire welding process and welding parameters. After the negative electrode welding is completed, the negative electrode welding component returns to the initial position. (10) The second fixture transfer line 32 in the fixture transfer area 103 continues to transfer one station, transferring the fixture tray to the post-weld shaping station; (11) The post-weld shaping plate at the post-weld shaping station is pressed down to reshape the welded electrode lugs; (12) The second fixture transfer line 32 in the fixture transfer area 103 continues to transfer one station, transferring the fixture tray to the cell transfer station; (13) The battery cell transfer robot in the adhesive application area 106 transfers the group of battery cells on the battery cell transfer station to the adhesive application area 106; (14) The positive electrode adhesive application mechanism and the negative electrode adhesive application mechanism of the adhesive application area 106 apply adhesive to the group of battery cells in sequence; (15) The transverse transfer mechanism of the adhesive application area 106 sends the battery cell with the adhesive tape applied to the unloading area 107. The unloading area 107 is equipped with an adhesive application vision inspection component to detect the accuracy of the upper and lower adhesive application of the adhesive application mechanism and whether there is adhesive application, so as to ensure that the adhesive application quality meets the process requirements. (16) The battery cells that pass the visual inspection are placed into groups by the unloading robot on the unloading conveyor line. At this point, all the processes of the whole equipment are completed.

[0061] The battery tab welding equipment provided in this application embodiment can further improve the integration of ultrasonic tab welding equipment and increase production efficiency; it can monitor the welding effect online in real time and perform visual inspection of incoming materials and adhesive application accuracy, thereby improving product quality; real-time dust removal by the dust removal component can improve the dust removal effect and reduce dust diffusion, thereby improving product quality; positive electrode adhesive application and negative electrode adhesive application can be performed simultaneously, improving adhesive application efficiency; an anti-collapse mechanism, i.e., a crossbar, is added in the middle of the battery cell to ensure adhesive application accuracy and improve finished product quality.

[0062] The various embodiments in this specification are described in a progressive manner. For the same or similar parts between the various embodiments, please refer to each other. The focus of each embodiment is to describe the differences from other embodiments.

[0063] Although this application has been described through embodiments, those skilled in the art will know that this application has many modifications and variations without departing from the spirit of this application, and it is intended that the appended claims cover such modifications and variations without departing from the spirit of this application.

Claims

1. A battery tab welding device, characterized in that, The battery cell moves linearly along the welding direction on the battery tab welding equipment. The battery tab welding equipment is provided with a material loading and positioning area, a jig transfer area, a welding area, an adhesive application area and a material unloading area in sequence along the battery cell welding direction. The loading and positioning area includes a first loading and positioning area and a second loading and positioning area. The first loading and positioning area is used to perform visual inspection and positioning of the battery cells and transfer the positioned battery cells to the fixture tray in the fixture transfer area. The second loading and positioning area is used to perform visual inspection and positioning of the connecting pieces and transfer the positioned connecting pieces to the fixture tray. The fixture transfer area transfers the fixture tray to the welding area, where the welding area performs positive electrode tab welding and negative electrode tab welding on the battery cells on the fixture tray to obtain a group of battery cells. The fixture transfer area then transfers the group of battery cells to the adhesive application area. The adhesive application area moves the group of battery cells to the target adhesive application station, applies adhesive to the positive and negative tabs of the group of battery cells respectively, and moves the group of battery cells after adhesive application to the unloading area for unloading. When moving the group of battery cells, the adhesive application area provides anti-collapse support for the middle of the group of battery cells. The fixture transfer area includes a first push-pull lateral movement mechanism, a second push-pull lateral movement mechanism, and parallel first and second fixture transfer lines. The welding area includes a positive electrode welding area and a negative electrode welding area. The positive electrode welding area is located on the side of the fixture transfer area closer to the first fixture transfer line, and the negative electrode welding area is located on the side of the fixture transfer area closer to the second fixture transfer line. The first push-pull lateral movement mechanism and the second push-pull lateral movement mechanism are used to provide push-pull force along the fixture transfer line direction or lateral movement force for position conversion between the two fixture transfer lines to the fixture trays on the first and second fixture transfer lines. The adhesive application area includes multiple adhesive application stations, a material feeding station, a lateral transfer mechanism, and multiple adhesive application components. The lateral transfer mechanism is equipped with a crossbar. The lateral transfer mechanism controls the lateral movement of the crossbar to transfer the group of battery cells at each station in the adhesive application area. During the transfer of the group of battery cells, the crossbar provides anti-collapse support to the middle of the group of battery cells. Each adhesive application station is equipped with two electric cylinders on both sides of the crossbar. The lifting surfaces of the two electric cylinders are at the same horizontal plane. The electric cylinders are used to lift the group of battery cells after they reach the corresponding station, so that the positive or negative electrode tabs of the group of battery cells can be applied with adhesive by the corresponding adhesive application component. The plurality of adhesive application stations include a first adhesive application station and a second adhesive application station, and the plurality of adhesive application components include a positive electrode adhesive application mechanism and a negative electrode adhesive application mechanism. The positive electrode adhesive applicator is installed on one side of the first adhesive applicator station. After the group of battery cells arrives at the first adhesive applicator station, the positive electrode adhesive applicator moves to the top of the first adhesive applicator station to apply adhesive to the positive electrode tabs of the group of battery cells at the first adhesive applicator station. The negative electrode adhesive applicator is installed on one side of the second adhesive applicator station. After the battery cells arrive at the second adhesive applicator station, the negative electrode adhesive applicator moves to the top of the second adhesive applicator station to apply adhesive to the negative electrode tabs of the battery cells at the second adhesive applicator station.

2. The battery tab welding equipment according to claim 1, characterized in that, The first feeding and positioning area includes a cell scanning station, a cell feeding station, and a cell positioning station; The cell scanning station is used to scan and bind the cells and perform visual inspection on the cell tabs using a scanning component. The cell loading station is used to transfer the cells that have passed visual inspection to the cell positioning station by a first loading robot. The cell positioning station is used to position the cells and then transfer the positioned cells to the fixture tray by a second loading robot.

3. The battery tab welding equipment according to claim 1, characterized in that, The second feeding and positioning area includes a connecting piece tray feeding port, a connecting piece tray unloading port, a feeding lifting mechanism, an unloading lifting mechanism, a feeding robot, a connecting piece tray, a first front-to-back transfer mechanism, a left-to-right transfer mechanism, and a second front-to-back transfer mechanism. The connecting piece tray feeding port holds a connecting piece tray containing connecting pieces. The first front and rear transfer mechanism is used to send the connecting piece tray above the feeding and lifting mechanism, the feeding and lifting mechanism is used to lift the connecting piece tray from the first initial position to the target feeding position, and the feeding robot is used to transfer the connecting pieces on the connecting piece tray from the target feeding position to the fixture tray in the fixture transfer area. The left and right transfer mechanism is used to place the connected piece tray that has been loaded onto the top of the unloading lifting mechanism. The unloading lifting mechanism is used to lower the connected piece tray that has been loaded from the second initial position to the target unloading position. The second front and rear transfer mechanism is used to move the connected piece tray that has been loaded onto the top of the unloading lifting mechanism to the unloading port of the connected piece tray.

4. The battery tab welding equipment according to claim 3, characterized in that, There are two connecting piece tray loading port, two connecting piece tray unloading port, two loading lifting mechanism, two unloading lifting mechanism, two first front and rear transfer mechanism, two left and right transfer mechanism and two second front and rear transfer mechanism, which are used for loading and unloading positive electrode connecting pieces and loading and unloading negative electrode connecting pieces respectively.

5. The battery tab welding equipment according to claim 3, characterized in that, The second loading and positioning area also includes a connecting piece positioning station and a loading robot. The loading robot transfers the connecting piece from the connecting piece tray to the connecting piece positioning station from the target loading position for secondary positioning of the connecting piece. The connecting piece positioned at the connecting piece positioning station is then transferred to the fixture tray by the loading robot.

6. The battery tab welding equipment according to claim 1, characterized in that, The fixture transfer area also includes a pre-welding shaping station, a positive electrode welding station, a negative electrode welding station, a post-welding shaping station, and a cell transfer station. The fixture transfer area has multiple fixture trays, which are distributed sequentially along the movement direction of the fixture transfer line in the fixture transfer area. The first push-pull lateral movement mechanism and the second push-pull lateral movement mechanism are located at both ends of the parallel fixture transfer line, respectively.

7. The battery tab welding equipment according to claim 1 or 6, characterized in that, The welding components in the welding area are equipped with wrap-around dust removal components, which are used to remove dust from the welding parts of the battery cell in real time during the welding process.

8. The battery tab welding equipment according to claim 7, characterized in that, The enclosed dust removal component includes a double-layer upper dust removal hood and a double-layer lower dust removal hood; The double-layer dust removal hood is installed around the welding head of the welding component in the welding area and moves with the welding head to remove dust from the welding part of the battery cell in real time during the welding process. The double-layer lower dust collector is installed on the base of the welding area and moves with the welding head to remove dust from below the welding part of the battery cell in real time during the welding process.

Images