Battery tab automatic welding device and battery production line

Abstract

The invention discloses an automatic welding device for battery tabs and a battery production line. The automatic welding device for the battery tabs comprises a tab feeding module, a welding module and a conveying module. The welding module is positioned at the downstream of the tab feeding module; the conveying module comprises a battery carrying table and a clamping mechanism, the battery carrying table is connected to the tab feeding module and the welding module, the clamping mechanism comprises a clamping driving part and a clamping assembly, in the linkage state, the clamping driving part is in power coupling with the clamping assembly, and the clamping assembly is driven by the clamping driving part to move in the conveying direction; in the separation state, the clamping driving piece and the clamping assembly are independent of each other, and the clamping assembly clamps the tab and the battery to be welded; by controlling state switching of the clamping mechanism, it is guaranteed that only an independent power source exists in the overall moving process of the clamping assembly and the battery carrying table, mutual influence of movement of the clamping assembly and movement of the battery carrying table is effectively avoided, and the clamping stability is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery processing equipment, and in particular to a battery tab automatic welding device and a battery production line. Background Art

[0002] In the related art, battery tab welding is performed solely by independent tab welding equipment. This production method is inefficient and labor-intensive. Furthermore, the related art proposes to combine tab screening, shaping, and testing equipment on the basis of independent tab welding equipment to form an integrated automatic production device to reduce labor costs and improve production efficiency.

[0003] However, when forming an integrated production device, there are problems such as large device structure volume, interference between components when transferring and connecting batteries between devices within the device, and poor tab fixation. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a battery tab automatic welding device and a battery production line, which can always keep the tab and the battery to be welded relatively fixed during the process of conveying the battery to be welded, and does not require secondary positioning in the welding module, effectively improving production efficiency; the independently arranged clamping mechanism and battery carrier realize the reuse of the clamping mechanism, effectively reducing the structure volume of the device and avoiding interference between components.

[0005] On the one hand, an embodiment of the present invention provides a battery tab automatic welding device, comprising: Tab feeding module; A welding module, located downstream of the tab feeding module; The conveying module includes a plurality of battery carriers and a clamping mechanism, wherein the battery carrier is connected to the tab feeding module and the welding module, and is suitable for conveying the battery to be welded and receiving the tab fed by the tab feeding module, and the clamping mechanism includes a clamping drive and at least one clamping assembly, wherein the clamping assembly can move along the conveying direction of the conveying module, and the clamping assembly is suitable for clamping and fixing the tab and the battery to be welded; The clamping mechanism is suitable for switching between a linkage state and a separation state. In the linkage state, the clamping drive is dynamically coupled to the clamping assembly, and the clamping assembly moves along the conveying direction under the drive of the clamping drive; in the separation state, the clamping drive and the clamping assembly are independent of each other, and the clamping assembly clamps the pole ear and the battery to be welded, and moves along the conveying direction under the drive of the battery carrier.

[0006] According to some embodiments of the present invention, the clamping mechanism further comprises a plug-in assembly, wherein the plug-in assembly is adapted to move along the conveying direction under the drive of the clamping drive member; The plug-in assembly includes a retractable plug connector, and the clamping assembly is provided with a plug hole corresponding to the plug connector. In the linkage state, the plug connector is connected to the plug hole, and in the separation state, the plug connector is separated from the plug hole.

[0007] According to some embodiments of the present invention, the battery carrier is provided with a clamping portion, and the clamping assembly comprises a first clamping jaw and a second clamping jaw, wherein the first clamping jaw is suitable for clamping and fixing the battery to be welded and the tab; and the second clamping jaw is suitable for clamping the clamping portion.

[0008] According to some embodiments of the present invention, the clamping assembly also includes a clamping base, the first clamping jaw includes a first vertical moving module, a first clamping arm, a second vertical moving module and a second clamping arm, the first clamping arm moves relative to the clamping base under the drive of the first vertical moving module, and the second clamping arm moves relative to the clamping base under the drive of the second vertical moving module.

[0009] According to some embodiments of the present invention, the conveying module also includes a plurality of support components, each of which corresponds to the battery carrier one by one and is arranged below the battery carrier. The support component includes a support head and a support driving member, and the support head moves and supports the welding points of the battery to be welded under the drive of the support driving member.

[0010] According to some embodiments of the present invention, the clamping assembly further includes a horizontal moving module, and the clamping base can be driven by the horizontal moving module to move away from the battery carrier so that the clamping assembly avoids the supporting assembly.

[0011] According to some embodiments of the present invention, the tab loading module includes a tab handling module, a first tab loading module and a tab detection loading module, the first tab loading module includes a tab transfer positioning mechanism, the tab transfer positioning mechanism is connected to the tab detection loading module and the tab handling module, and the tab handling module is suitable for handling the tab in the first tab loading module; The tab transfer and positioning mechanism includes a tab positioning seat and a tab transfer moving part. The tab positioning seat moves along the transfer direction under the drive of the tab transfer moving part. The tab positioning seat is provided with a tab positioning groove, a first tab positioning member and a second tab positioning member. The first tab positioning member can move along the first direction and push the tab, and the second tab positioning member can move along the second direction and push the tab so that the tab abuts against the groove wall of the tab positioning groove, wherein the first direction and the second direction are arranged at an angle and the plane formed by the two is parallel to the transfer direction.

[0012] According to some embodiments of the present invention, the first tab loading module further includes a tab supplementary installation position and a first tab detection camera, wherein the first tab detection camera is located downstream of the tab transfer positioning mechanism and is suitable for detecting the appearance of the tab; The tab supplementary mounting position is suitable for mounting a tab supplementary carrier plate, and the tab supplementary carrier plate carries the qualified tabs for replacing the tabs that are unqualified when detected by the first tab detection camera.

[0013] According to some embodiments of the present invention, the battery tab automatic welding device also includes a discharge detection module, which is arranged downstream of the welding module, and the conveying module is connected to the tab loading module, the welding module and the discharge detection module, and the discharge detection module includes a battery AOI detection mechanism and a battery welding point AOI detection mechanism.

[0014] On the other hand, the present invention also provides a battery production line, comprising the battery tab automatic welding device as described above.

[0015] The embodiments of the present invention have at least the following beneficial effects: by independently arranging the battery carrier and the clamping mechanism, the clamping mechanism can be adapted to any battery carrier for repeated use, thereby avoiding the need to arrange relevant clamping components on the battery carrier and effectively reducing the structural volume of the battery carrier and the battery tab automatic welding device; and, during the transportation process after the tab and the battery to be welded are matched, the two always remain relatively fixed, thereby improving the handling stability and avoiding repeated positioning of the welding module, thereby ensuring the quality of the tab welding and improving production efficiency; further, by controlling the state switching of the clamping mechanism, the movement of the clamping assembly and the linkage of the clamping assembly with the battery carrier are realized, thereby ensuring that there is only a single power source (the power source of the battery carrier) during the overall movement of the clamping assembly and the battery carrier, thereby effectively avoiding the mutual influence of the movement of the clamping assembly and the movement of the battery carrier and improving the clamping stability.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which: Figure 1 A top view of a battery tab automatic welding device according to an embodiment of the present invention; Figure 2 It is an isometric view of a battery tab automatic welding device according to an embodiment of the present invention; Figure 3 It is a structural schematic diagram of a conveying module of a battery tab automatic welding device according to an embodiment of the present invention; Figure 4 yes Figure 3 A magnified view of the part A in the middle; Figure 5 2 is a schematic structural diagram of a tab transfer and positioning mechanism of a battery tab automatic welding device according to an embodiment of the present invention; Figure 6 yes Figure 5 Enlarged view of part B in the middle.

[0018] Reference numerals: 100, tab loading module; 110, tab handling module; 120, first tab loading module; 121, tab transport positioning mechanism; 1211, tab positioning seat; 12111, tab positioning groove; 12112, first tab positioning piece; 12113, second tab positioning piece; 1212, tab transport moving part; 123, first tab detection camera; 124, battery detection camera; 125, first tab positioning seat; 126, second tab positioning seat; 127, mobile substrate; 130, tab detection and loading module; 200, welding module; 300, conveying module; 310, battery carrier; 311, clamping part; 320, clamping mechanism; 321, clamping drive; 322, clamping assembly; 3221, plug hole; 3222, first clamping claw; 32221, first vertical moving module; 32222, first clamping arm; 32223, second vertical moving module; 32224, second clamping arm; 3223, second clamping claw; 3224, clamping base; 3225, horizontal moving module; 323, plug assembly; 3231, plug connector; 330, support assembly; 331, support head; 332, support drive; 400, discharging inspection module; 410, battery AOI inspection mechanism; 420, battery solder joint AOI inspection mechanism; 430, discharging conveying mechanism; 440, unqualified product discharging conveying line; 510. Tab supplementary carrier board. DETAILED DESCRIPTION

[0019] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0020] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] In the description of the present invention, "several" means one or more, "multiple" means more than two, greater than, less than, and exceeding are understood as not including the number itself, and "above", "below", and "within" are understood as including the number itself. If there is a description of "first", "second", etc., it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0022] In the description of the present invention, unless otherwise clearly defined, words such as “setting”, “installation” and “connection” should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0023] Please refer to Figures 1 to 4 As shown, on the one hand, an embodiment of the present invention provides a battery tab automatic welding device, including a tab feeding module 100, a welding module 200 and a conveying module 300; the welding module 200 is located downstream of the tab feeding module 100; the conveying module 300 includes a plurality of battery carriers 310 and a clamping mechanism 320, the battery carriers 310 are connected to the tab feeding module 100 and the welding module 200, and are suitable for conveying batteries to be welded and receiving tabs fed by the tab feeding module 100, the clamping mechanism 320 includes a clamping drive 321 and at least one clamping assembly 322, the clamping assembly Part 322 can move along the conveying direction (X direction in the figure) of the conveying module 300, and the clamping assembly 322 is suitable for clamping the fixed pole ear and the battery to be welded; the clamping mechanism 320 is suitable for switching between a linkage state and a separation state. In the linkage state, the clamping driving member 321 is dynamically coupled with the clamping assembly 322, and the clamping assembly 322 moves along the conveying direction under the drive of the clamping driving member 321; in the separation state, the clamping driving member 321 and the clamping assembly 322 are independent of each other, the clamping assembly 322 clamps the pole ear and the battery to be welded, and moves along the conveying direction under the drive of the battery carrier 310.

[0024] According to the battery tab automatic welding device of the embodiment of the present invention, the tab feeding module 100 feeds the tab and matches the tab with the battery to be welded fixed on the battery carrier 310, the battery to be welded and the tab are clamped and fixed by the clamping assembly 322, the clamping mechanism 320 is switched to a separated state, the battery carrier 310, the battery to be welded, the tab and the clamping assembly 322 are fixed as a whole and moved along the conveying direction to the welding module 200, the welding module 200 welds the tab and the battery to be welded, after the welding is completed, the clamping mechanism 320 is switched to a linkage state, the clamping assembly 322 releases the clamping of the tab and the battery to be welded, the clamping drive 321 is power-coupled with the clamping assembly 322, and the clamping assembly 322 is driven to move to the upstream of the welding module 200, and then the next group of batteries to be welded and the tab are fixed.

[0025] It should be noted that the prior art proposes to combine the tab screening, shaping, and detection equipment on the basis of independent tab welding equipment to form an integrated automatic production technical solution to reduce labor costs and improve production efficiency. However, when forming an integrated production device, there are problems such as large device structure volume, interference between components during battery transfer and connection between devices within the device, and poor tab fixing effect.

[0026] According to the battery tab automatic welding device of the embodiment of the present invention, the battery carrier 310 and the clamping mechanism 320 are independently arranged, and the clamping mechanism 320 can be adapted to any battery carrier 310 for repeated use, thereby avoiding the arrangement of relevant clamping components on the battery carrier 310, effectively reducing the structural volume of the battery carrier 310 and the battery tab automatic welding device, and avoiding the interference of components during battery transfer and connection caused by too many components; and in the transportation process after the tab and the battery to be welded are matched, the two are always kept relatively fixed, thereby improving the handling stability. It also avoids repeated positioning in the welding module 200, thereby ensuring the quality of the pole ear welding and improving production efficiency; further, by controlling the state switching of the clamping mechanism 320, the movement of the clamping assembly 322 and the linkage of the clamping assembly 322 with the battery carrier 310 are realized, ensuring that there is only a single power source (the power source of the battery carrier 310) during the overall movement of the clamping assembly 322 and the battery carrier 310, effectively avoiding the mutual influence of the movement of the clamping assembly 322 and the movement of the battery carrier 310, which may cause damage to the pole ear or the battery to be welded, thereby improving the clamping stability.

[0027] In this embodiment, the conveying module 300 is in the form of a magnetic levitation ferry line. Specifically, the battery carrier 310 is magnetically suspended on the magnetic levitation track. The straight segments and arc segments of the magnetic levitation track can be infinitely combined to meet the design, production and space requirements. This flexibility allows the magnetic levitation ferry line to easily adapt to various complex production line layouts, and the magnetic levitation ferry line supports the simultaneous movement of multiple battery carriers 310, and can accelerate or decelerate according to the position of different battery carriers 310, realizing highly automated operation. In other embodiments, the conveying module 300 can also use a conveyor belt, a conveyor slide rail, etc.

[0028] In this embodiment, the number of battery carriers 310 is six, and the number of welding modules 200 is two, so as to simultaneously realize the welding of two batteries and tabs to be welded, effectively improving efficiency; in other embodiments, the specific number of each module or component can be adjusted based on actual needs, such as using three welding modules 200.

[0029] In some embodiments, in combination Figure 3 and Figure 4 As shown, the clamping mechanism 320 also includes a plug-in component 323, which is suitable for moving along the conveying direction under the drive of the clamping drive member 321; the plug-in component 323 includes a retractable plug connector 3231, and the clamping component 322 is provided with a plug hole 3221 corresponding to the plug connector 3231. In the linkage state, the plug connector 3231 is connected to the plug hole 3221, and in the separation state, the plug connector 3231 is separated from the plug hole 3221.

[0030] In this embodiment, when it is necessary to clamp and fix the pole tab and the battery to be welded (before the battery to be welded and the pole tab are transported to the welding module 200 for welding), the plug connector 3231 and the plug hole 3221 are separated, and there is no power transmission between the clamping assembly 322 and the clamping drive 321. The clamping assembly 322 clamps and fixes the battery to be welded and the pole tab, and the battery carrier 310, the battery to be welded, the pole tab and the clamping assembly 322 are moved as a whole along the conveying direction to the welding module 200. The welding module 200 welds the pole tab and the battery to be welded. After the welding is completed, the plug connector 3231 is extended and connected to the plug hole 3221, the clamping mechanism 320 is switched to the linkage state, and the clamping drive 321 is power-coupled with the clamping assembly 322, driving the clamping assembly 322 to move to the upstream of the welding module 200, thereby fixing the next group of batteries and pole tabs to be welded.

[0031] The power transmission between the clamping drive member 321 and the clamping assembly 322 is realized by arranging the plug connector 3231 and the plug hole 3221. The structure is simple and reliable with high positioning accuracy, ensuring stable and efficient operation of the device.

[0032] In this embodiment, the extension and retraction of the plug connector 3231 can be achieved by a cylinder, a slide module, a screw module, etc.

[0033] In other embodiments, the switching between the linkage state and the separation state between the clamping component 322 and the clamping drive 321 can also be implemented by a magnetic connection that can be turned on and off (such as using an electromagnet, which generates magnetism when energized, so that the clamping component 322 and the clamping drive 321 are linked), a clutch, etc.

[0034] In some embodiments, in combination Figure 3 and Figure 4 As shown, the battery carrier 310 is provided with a clamping portion 311 , and the clamping assembly 322 includes a first clamping jaw 3222 and a second clamping jaw 3223 , the first clamping jaw 3222 is suitable for clamping and fixing the battery to be welded and the tab; the second clamping jaw 3223 is suitable for clamping the clamping portion 311 .

[0035] In this embodiment, the fixation between the battery carrier 310 and the clamping assembly 322 is achieved through the cooperation of the clamping portion 311 and the second clamping jaw 3223. The first clamping jaw 3222 is used to fix the battery to be welded and the pole ear on the basis of relative fixation of the battery carrier 310 and the clamping assembly 322, so that when the battery carrier 310 drives the clamping assembly 322 to move, the force between the two will not act on the battery to be welded and the pole ear, thereby effectively protecting the battery to be welded and the pole ear, and improving the accuracy of positioning of the two, thereby ensuring the welding effect.

[0036] In some embodiments, in combination Figure 3 and Figure 4 As shown, the clamping assembly 322 also includes a clamping base 3224, the first clamping jaw 3222 includes a first vertical movable module 32221, a first clamping arm 32222, a second vertical movable module 32223 and a second clamping arm 32224, the first clamping arm 32222 moves relative to the clamping base 3224 under the drive of the first vertical movable module 32221, and the second clamping arm 32224 moves relative to the clamping base 3224 under the drive of the second vertical movable module 32223.

[0037] In this embodiment, the first vertical movable module 32221 and the second vertical movable module 32223 each drive the corresponding clamping arm to move along the Z direction shown in the figure. The independently moving first clamping arm 32222 and the second clamping arm 32224 can adaptively adjust the distance between the first clamping arm 32222 and the second clamping arm 32224 during the process of clamping the fixed pole ear and the battery to be welded, so as to adapt to the pole ears or batteries to be welded of different thicknesses and sizes; and there is no linkage structure between the first clamping arm 32222 and the second clamping arm 32224, which effectively reduces the volume of the clamping assembly 322.

[0038] In this embodiment, the first vertical moving module 32221 and the second vertical moving module 32223 may adopt cylinders. Of course, a slide module, a screw module, etc. may also be adopted.

[0039] In some embodiments, in combination Figure 3 As shown, the conveying module 300 also includes a plurality of support components 330, which correspond one-to-one to the battery carrier 310 and are arranged below the battery carrier 310. The support components 330 include a support head 331 and a support driving member 332. The support head 331 moves and supports the welding points of the battery to be welded under the drive of the support driving member 332.

[0040] In this embodiment, a number of support components 330 are arranged at specific points (such as the points where the pole tabs and the batteries to be welded are fixed, or the welding points below the welding module 200) along the conveying direction (Z direction as shown in the figure), and the welding points of the batteries to be welded are supported by the support heads 331 to ensure the fitting effect between the batteries to be welded and the pole tabs, and to ensure that the clamping components 322 stably clamp the fixed pole tabs and the welding points of the batteries to be welded; and when the welding module 200 is welding, the support of the support components 330 avoids poor contact between the welding points and the pole tabs, thereby ensuring the welding effect.

[0041] In some embodiments, in combination Figure 3 and Figure 4 As shown, the clamping assembly 322 further includes a horizontal moving module 3225 , and the clamping base 3224 can be driven away from the battery carrier 310 by the horizontal moving module 3225 , so that the clamping assembly 322 avoids the supporting assembly 330 .

[0042] In this embodiment, the horizontal moving module 3225 can drive the clamping base 3224 to move along the Y direction, so that the clamping base 3224 drives the clamping assembly 322 as a whole to avoid the supporting assembly 330, so as to make full use of the space between the components in the Y direction of the battery tab automatic welding device and improve the integration of the battery tab automatic welding device.

[0043] In this embodiment, the horizontal moving module 3225 can adopt a cylinder. Of course, a slide module, a screw module, etc. can also be adopted.

[0044] In some embodiments, in combination Figure 1 , Figure 2 , Figure 5 and Figure 6As shown, the tab loading module 100 includes a tab handling module 110, a first tab loading module 120 and a tab detection loading module 130, the first tab loading module 120 includes a tab transfer positioning mechanism 121, the tab transfer positioning mechanism 121 is connected to the tab detection loading module 130 and the tab handling module 110, the tab handling module 110 is suitable for handling the tabs in the first tab loading module 120; the tab transfer positioning mechanism 121 includes a tab positioning seat 1211 and a tab transfer moving part 1212, the tab positioning seat 1211 moves along the transfer direction (X direction in the figure) under the drive of the tab transfer moving part 1212, the tab positioning seat 1211 includes a tab positioning groove 12111, a first tab positioning member 12112 and a second tab positioning member 12113, the first tab positioning member 12112 can move along the first direction ( Figure 5 The second tab positioning member 12113 can move along the second direction ( Figure 5 The first direction and the second direction are arranged at an angle and a plane formed by the two is parallel to the transport direction (the X direction in the figure).

[0045] In this embodiment, the tab detection and loading module 130 detects the tabs incoming from the outside and places the detected tabs in the tab positioning seat 1211, and the tab transfer moving part 1212 drives the tab positioning seat 1211 carrying the tab to move into the working range of the tab handling module 110, waiting for the tab handling module 110 to transport the tab in the tab positioning seat 1211; in the tab positioning seat 1211, the tab is placed in the tab positioning groove 12111, and the first tab positioning member 12112 and the second tab positioning member 12113 push the tab from the first direction and the second direction, so that the tab fits with the groove wall of the tab positioning groove 12111, so as to realize the positioning of the tab in the tab positioning groove 12111, and ensure that the tab handling module 110 can accurately pick up and transport the tab from the tab positioning groove 12111.

[0046] In this embodiment, by synchronizing the positioning process of the tab and the transfer process, the accurate and efficient transportation of the tab is ensured while realizing the automated loading process of the tab.

[0047] In this embodiment, the tab handling module 110 is in the form of a multi-axis robotic arm, which can realize flexible handling of the tabs; in other embodiments, the tab handling module 110 can also adopt a combination of several linear modules combined with a robot to realize the movement and handling of the tabs in three-dimensional space through the linear modules and the robot.

[0048] In this embodiment, the number of the tab handling modules 110 is two, so as to simultaneously handle two tabs and effectively improve efficiency; in other embodiments, the specific number can be adjusted based on actual needs, such as setting three tab handling modules 110.

[0049] In this embodiment, along Figure 5 Two tab transfer positioning mechanisms 121 are arranged in parallel in the middle Y direction, and each tab transfer positioning mechanism 121 is provided with two tab positioning seats 1211 to adapt to two tab handling modules 110. Of course, the number of tab positioning seats 1211 can be adaptively adjusted based on the number of tabs to be transferred at a single time.

[0050] In some embodiments, in combination Figure 5 and Figure 6 As shown, the tab locating seat 1211 includes a movable substrate 127, a first tab locating seat 125 and a second tab locating seat 126, the first side of the movable substrate 127 is connected to the tab transport moving part 1212, and the second side of the movable substrate 127 is provided with the first tab locating seat 125 and the second tab locating seat 126, wherein the first tab locating seat 125 is fixed to the movable substrate 127, and the second tab locating seat 126 is slidably connected to the movable substrate 127 along the transport direction.

[0051] In this embodiment, the second tab positioning seat 126 controls the distance between itself and the first tab positioning seat 125 by sliding, and is adaptively adjusted to different specifications of tabs or tab handling modules 110 to ensure that when multiple tab handling modules 110 are running at the same time, the tab handling modules 110 will not interfere with each other in picking up and handling the tabs.

[0052] In this embodiment, the sliding connection between the second tab locating seat 126 and the movable substrate 127 can be achieved through a slide rail, and the second tab locating seat 126 is driven to move by a cylinder; in other embodiments, a slide module, a screw module, etc. can also be used.

[0053] In some embodiments, in combination Figure 1 and Figure 2 As shown, the first pole lug loading module 120 also includes a pole lug supplementary installation position and a first pole lug detection camera 123. The first pole lug detection camera 123 is located downstream of the pole lug transfer positioning mechanism 121 and is suitable for detecting the appearance of the pole lug. The pole lug supplementary installation position is suitable for installing a pole lug supplementary carrier plate 510. The pole lug supplementary carrier plate 510 carries qualified pole lugs and is used to replace unqualified pole lugs detected by the first pole lug detection camera 123.

[0054] In this embodiment, the tab transport module 110 picks up the tab from the tab transfer and positioning mechanism 121 and moves the tab to the first tab detection camera 123, which detects the appearance of the tab. The tabs that pass the inspection will be transported to the battery carrier 310 and fixed to the battery to be welded, while the tabs that fail the inspection will be transported to a recycling box, and the tab transport module 110 will pick up the qualified tabs from the tab replenishment carrier 510 again.

[0055] In this embodiment, by providing a tab supplement carrier 510, it is ensured that when the tabs transported automatically are unqualified, the tab handling module 110 can quickly replenish qualified tabs from the tab supplement carrier 510, thereby avoiding long waiting times for the battery tab automatic welding device and effectively improving production efficiency.

[0056] In this embodiment, the first tab loading module 120 also includes a battery detection camera 124, which is arranged above the battery carrier 310 and is used to photograph and detect the welding points of the batteries to be welded to ensure that the tab handling module 110 can adjust the tab position based on the shooting results of the battery detection camera 124.

[0057] In some embodiments, in combination Figure 1 and Figure 2 As shown, the battery tab automatic welding device also includes a discharge detection module 400, which is arranged downstream of the welding module 200. The conveying module 300 is connected to the tab feeding module 100, the welding module 200 and the discharge detection module 400. The discharge detection module 400 includes a battery AOI (automatic optical inspection) detection mechanism and a battery solder joint AOI detection mechanism 420. The battery AOI detection mechanism 410 detects the appearance of the battery, and the battery solder joint AOI detection mechanism 420 detects the appearance of the solder joint to ensure that the battery after welding is qualified and reduce the cost of manual screening.

[0058] In this embodiment, the discharge inspection module 400 also includes a discharge conveying mechanism 430 and a defective product discharge conveying line 440. In the previous process, the defective products of the battery AOI inspection mechanism 410 or the battery solder joint AOI inspection mechanism 420 will be transported by the discharge conveying mechanism 430 to the defective product discharge conveying line 440 and manually re-inspected; the qualified products will continue to flow out of the conveying module 300 along the conveying direction or flow into the production equipment of the next process.

[0059] On the other hand, the present invention further provides a battery production line, comprising the battery tab automatic welding device as described in the above embodiment.

[0060] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A battery tab automatic welding device, used for welding batteries and tabs to be welded, characterized in that: include: Tab feeding module (100); A welding module (200) located downstream of the tab feeding module (100); A conveying module (300) comprising a plurality of battery carriers (310) and a clamping mechanism (320); the battery carriers (310) are connected to the tab loading module (100) and the welding module (200), and are suitable for conveying the battery to be welded and receiving the tab loaded by the tab loading module (100); the clamping mechanism (320) comprises a clamping drive (321) and at least one clamping assembly (322); the clamping assembly (322) is movable along the conveying direction of the conveying module (300), and the clamping assembly (322) is suitable for clamping and fixing the tab and the battery to be welded; The clamping mechanism (320) is suitable for switching between a linkage state and a separation state. In the linkage state, the clamping drive (321) is dynamically coupled to the clamping assembly (322), and the clamping assembly (322) moves along the conveying direction under the drive of the clamping drive (321); in the separation state, the clamping drive (321) and the clamping assembly (322) are independent of each other, and the clamping assembly (322) clamps the pole ear and the battery to be welded, and moves along the conveying direction under the drive of the battery carrier (310).

2. The battery tab automatic welding device according to claim 1, characterized in that: The clamping mechanism (320) further comprises a plug-in assembly (323), wherein the plug-in assembly (323) is adapted to move along the conveying direction under the drive of the clamping drive member (321); The plug-in assembly (323) comprises a retractable plug connector (3231); the clamping assembly (322) is provided with a plug hole (3221) corresponding to the plug connector (3231); in the linkage state, the plug connector (3231) is connected to the plug hole (3221); in the separation state, the plug connector (3231) is separated from the plug hole (3221).

3. The battery tab automatic welding device according to claim 1, characterized in that: The battery carrier (310) is provided with a clamping portion (311), and the clamping assembly (322) comprises a first clamping jaw (3222) and a second clamping jaw (3223), wherein the first clamping jaw (3222) is suitable for clamping and fixing the battery to be welded and the tab; and the second clamping jaw (3223) is suitable for clamping the clamping portion (311).

4. The battery tab automatic welding device according to claim 3, characterized in that: The clamping assembly (322) also includes a clamping base (3224), the first clamping jaw (3222) includes a first vertical movable module (32221), a first clamping arm (32222), a second vertical movable module (32223) and a second clamping arm (32224), the first clamping arm (32222) moves relative to the clamping base (3224) under the drive of the first vertical movable module (32221), and the second clamping arm (32224) moves relative to the clamping base (3224) under the drive of the second vertical movable module (32223).

5. The battery tab automatic welding device according to claim 4, characterized in that: The conveying module (300) further comprises a plurality of support assemblies (330), wherein the support assemblies (330) correspond one-to-one to the battery carrier (310) and are arranged below the battery carrier (310), wherein the support assemblies (330) comprise a support head (331) and a support driving member (332), wherein the support head (331) moves and supports the welding points of the battery to be welded under the drive of the support driving member (332).

6. The battery tab automatic welding device according to claim 5, characterized in that: The clamping assembly (322) further comprises a horizontally movable module (3225), and the clamping base (3224) can be moved away from the battery carrier (310) under the drive of the horizontally movable module (3225), so that the clamping assembly (322) avoids the supporting assembly (330).

7. The battery tab automatic welding device according to any one of claims 1 to 6, characterized in that: The tab loading module (100) comprises a tab handling module (110), a first tab loading module (120) and a tab detection loading module (130); the first tab loading module (120) comprises a tab transfer positioning mechanism (121); the tab transfer positioning mechanism (121) is connected to the tab detection loading module (130) and the tab handling module (110); the tab handling module (110) is suitable for handling the tab in the first tab loading module (120); The tab transport positioning mechanism (121) comprises a tab positioning seat (1211) and a tab transport moving part (1212); the tab positioning seat (1211) moves along a transport direction under the drive of the tab transport moving part (1212); the tab positioning seat (1211) is provided with a tab positioning groove (12111), a first tab positioning member (12112) and a second tab positioning member (12113); the first tab positioning member (12112) is capable of moving along a first direction and pushing the tab; the second tab positioning member (12113) is capable of moving along a second direction and pushing the tab so that the tab abuts against a groove wall of the tab positioning groove (12111); wherein the first direction and the second direction are arranged at an angle and a plane formed by the two is parallel to the transport direction.

8. The battery tab automatic welding device according to claim 7, characterized in that: The first tab loading module (120) further comprises a tab supplementary installation position and a first tab detection camera (123); the first tab detection camera (123) is located downstream of the tab transfer positioning mechanism (121) and is suitable for detecting the appearance of the tab; The tab supplementary mounting position is suitable for mounting a tab supplementary carrier plate (510), wherein the tab supplementary carrier plate (510) carries a qualified tab and is used to replace an unqualified tab detected by the first tab detection camera (123).

9. The battery tab automatic welding device according to claim 7, characterized in that: The battery tab automatic welding device further comprises a discharge detection module (400), the discharge detection module (400) being arranged downstream of the welding module (200), the conveying module (300) being connected to the tab feeding module (100), the welding module (200) and the discharge detection module (400), and the discharge detection module (400) comprising a battery AOI detection mechanism (410) and a battery welding point AOI detection mechanism (420).

10. A battery production line, characterized in that: It comprises the battery tab automatic welding device as described in any one of claims 1 to 9.

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