Automatic Welding Device for Battery Tab 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 battery tabs comprises a tab feeding module, a welding module and a conveying module; the welding module is located downstream of the tab feeding module; the conveying module comprises a battery carrier and a clamping mechanism, the battery carrier is connected to the tab feeding module and the welding module, the clamping mechanism comprises a clamping drive and a clamping assembly, in a linkage state, the clamping drive is power-coupled with the clamping assembly, and the clamping assembly moves along a conveying direction under the drive of the clamping drive; in a separated state, the clamping drive and the clamping assembly are independent of each other, and the clamping assembly clamps the tab and the battery to be welded; by controlling the state switching of the clamping mechanism, it is ensured that there is only a single power source 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.

Description

Technical Field

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

[0002] In the related art, the welding of battery tabs is solely responsible for by an independent tab welding device. This production method has low efficiency and consumes a lot of labor. Further, in the related art, on the basis of the independent tab welding device, devices such as tab screening, shaping, and detection are combined to form an integrated automatic production device, reducing labor costs and improving production efficiency.

[0003] However, when forming an integrated production device, there are problems such as a large volume of the device structure, interference of parts during the transfer connection of the batteries between the devices in the device, and poor tab fixing effect. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. For this purpose, the present invention provides an automatic battery tab welding device and a battery production line, which can always keep the relative fixation of the tab and the battery to be welded during the conveying process of the battery to be welded, and there is no need for secondary positioning in the welding module, effectively improving the production efficiency; the independently provided clamping mechanism and the battery carrier realize the repeated use of the clamping mechanism, effectively reducing the volume of the device structure and avoiding interference of parts.

[0005] On the one hand, an embodiment of the present invention provides an automatic battery tab welding device, including:

[0006] A tab loading module;

[0007] A welding module, located downstream of the tab loading module;

[0008] A conveying module, including a plurality of battery carriers and a clamping mechanism. The battery carrier is connected between the tab loading module and the welding module, and is adapted to convey the battery to be welded and receive the tab loaded by the tab loading module. The clamping mechanism includes a clamping driving member and at least one clamping component. The clamping component can move along the conveying direction of the conveying module, and the clamping component is adapted to clamp and fix the tab and the battery to be welded;

[0009] The clamping mechanism is adapted to switch between a linkage state and a separation state. In the linkage state, the clamping driving member is power-coupled with the clamping component, and the clamping component moves along the conveying direction under the drive of the clamping driving member; in the separation state, the clamping driving member and the clamping component are independent of each other, the clamping component clamps the tab and the battery to be welded, and moves along the conveying direction under the drive of the battery carrier.

[0010] 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;

[0011] 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.

[0012] 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.

[0013] 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.

[0014] 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.

[0015] 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.

[0016] 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;

[0017] 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 a first direction and push against the tab, and the second tab positioning member can move along a second direction and push against 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.

[0018] According to some embodiments of the present invention, the first tab loading module further includes a tab replenishment installation position and a first tab detection camera. The first tab detection camera is located downstream of the tab transfer and positioning mechanism and is adapted to detect the appearance of the tab.

[0019] The tab replenishment installation position is adapted to install a tab replenishment carrier plate. The tab replenishment carrier plate carries qualified tabs and is used to replace the tabs detected as unqualified by the first tab detection camera.

[0020] According to some embodiments of the present invention, the battery tab automatic welding device further includes an outgoing material detection module. The outgoing material detection module is arranged downstream of the welding module. The conveying module is connected to the tab loading module, the welding module, and the outgoing material detection module. The outgoing material detection module includes a battery AOI detection mechanism and a battery solder joint AOI detection mechanism.

[0021] On the other hand, the present invention also provides a battery production line, including the battery tab automatic welding device as described above.

[0022] 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 reused with any battery carrier, avoiding the setting of relevant clamping components on the battery carrier, effectively reducing the structural volume of the battery carrier and the battery tab automatic welding device; and during the conveying process after the tab is matched with the battery to be welded, the two always remain relatively fixed, improving the handling stability and avoiding repeated positioning in the welding module, ensuring the welding quality of the tab while improving the production efficiency; further, by controlling the state switching of the clamping mechanism, the movement of the clamping component and the linkage of the clamping component with the battery carrier are realized, ensuring that there is only a single power source (the power source of the battery carrier) during the overall movement of the clamping component and the battery carrier, effectively avoiding the mutual influence between the movement of the clamping component and the movement of the battery carrier, and improving the clamping stability.

[0023] The additional aspects and advantages of the present invention will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the following description of embodiments in conjunction with the accompanying drawings, in which:

[0025] Figure 1 is a top view of the automatic battery tab welding device according to an embodiment of the present invention;

[0026] Figure 2 is an isometric view of the automatic battery tab welding device according to an embodiment of the present invention;

[0027] Figure 3 is a schematic structural diagram of a conveying module of the automatic battery tab welding device according to an embodiment of the present invention;

[0028] Figure 4 is Figure 3 an enlarged view of a partial area A in;

[0029] Figure 5 is a schematic structural diagram of an ear transfer and positioning mechanism of the automatic battery tab welding device according to an embodiment of the present invention;

[0030] Figure 6 is Figure 5 an enlarged view of a partial area B in.

[0031] Reference numerals:

[0032] 100, ear loading module; 110, ear handling module; 120, first ear loading module; 121, ear transfer and positioning mechanism; 1211, ear positioning seat; 12111, ear positioning groove; 12112, first ear positioning member; 12113, second ear positioning member; 1212, ear transfer moving part; 123, first ear detection camera; 124, battery detection camera; 125, first ear positioning seat; 126, second ear positioning seat; 127, moving substrate; 130, ear detection and loading module;

[0033] 200, welding module;

[0034] 300, conveying module; 310, battery carrier; 311, clamping part; 320, clamping mechanism; 321, clamping driving member; 322, clamping assembly; 3221, insertion hole; 3222, first clamping jaw; 32221, first vertical moving module; 32222, first clamping arm; 32223, second vertical moving module; 32224, second clamping arm; 3223, second clamping jaw; 3224, clamping base; 3225, horizontal moving module; 323, insertion assembly; 3231, insertion head; 330, support assembly; 331, support head; 332, support driving member;

[0035] 400. Discharge detection module; 410. Battery AOI detection mechanism; 420. Battery solder joint AOI detection mechanism; 430. Discharge handling mechanism; 440. Rejected product discharge conveyor line;

[0036] 510. Tab replenishment carrier plate. Detailed implementation manners

[0037] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0038] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0039] In the description of the present invention, the meaning of "several" is one or more, the meaning of "multiple" is more than two, greater than, less than, exceeding, etc. are understood as not including the present number, and "above", "below", "within", etc. are understood as including the present number. If there is a description of "first", "second", etc., it is only for the purpose of distinguishing technical features and should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0040] In the description of the present invention, unless otherwise clearly defined, terms such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0041] Please refer to Figures 1 to 4As shown in the figure, on the one hand, an embodiment of the present invention provides an automatic battery tab welding device, which includes 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 number of battery carriers 310 and a clamping mechanism 320. The battery carriers 310 are connected between the tab feeding module 100 and the welding module 200, and are adapted to convey the batteries to be welded and receive the tabs fed by the tab feeding module 100. The clamping mechanism 320 includes a clamping driving member 321 and at least one clamping assembly 322. The clamping assembly 322 can move along the conveying direction of the conveying module 300 (the X direction shown in the figure). The clamping assembly 322 is adapted to clamp and fix the tab and the battery to be welded; the clamping mechanism 320 is adapted to switch between a linked state and a separated state. In the linked state, the clamping driving member 321 is power-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 separated state, the clamping driving member 321 and the clamping assembly 322 are independent of each other. The clamping assembly 322 clamps the tab and the battery to be welded and moves along the conveying direction under the drive of the battery carrier 310.

[0042] For the automatic battery tab welding device according to the embodiment of the present invention, the tab feeding module 100 feeds the tab and mates the tab with the battery to be welded fixed on the battery carrier 310. The clamping assembly 322 clamps and fixes the battery to be welded and the tab. The clamping mechanism 320 switches to the separated state. The whole of the battery carrier 310, the battery to be welded, the tab, and the clamping assembly 322 is fixed 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 switches to the linked state. The clamping assembly 322 releases the clamping of the tab and the battery to be welded. The clamping driving member 321 is power-coupled with the clamping assembly 322, and drives the clamping assembly 322 to move upstream of the welding module 200, and then fixes the next set of batteries to be welded and tabs.

[0043] It should be noted that in the prior art, a technical solution is proposed to combine tab screening, shaping, detection and other devices on the basis of an independent tab welding device to form an integrated automatic production, so as to reduce labor costs and improve production efficiency. However, when forming an integrated production device, there are problems such as a large volume of the device structure, interference of parts during the battery transfer connection between devices in the device, and poor tab fixing effect.

[0044] According to the battery tab automatic welding device of the embodiment of the present invention, by independently arranging the battery carrier 310 and the clamping mechanism 320, the clamping mechanism 320 can be reused by adapting to any battery carrier 310, avoiding the setting 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 at the same time avoiding the interference of components during battery transfer connection due to excessive number of components; moreover, during the conveying process after the tab is matched with the battery to be welded, the two always remain relatively fixed, improving the handling stability and avoiding repeated positioning in the welding module 200, ensuring the tab welding quality while improving the production efficiency; further, by controlling the state switching of the clamping mechanism 320, the movement of the clamping component 322 and the linkage of the clamping component 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 component 322 and the battery carrier 310, effectively avoiding the problem of damage to the tab or the battery to be welded caused by the mutual influence of the movement of the clamping component 322 and the movement of the battery carrier 310, and improving the clamping stability.

[0045] In this embodiment, the conveying module 300 adopts the form of a magnetic levitation ferry line. Specifically, the battery carrier 310 is magnetically levitated on the magnetic levitation track, and the straight section and the arc section of the magnetic levitation track can be infinitely combined to meet the design, production and space requirements. This flexibility enables 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 positions of different battery carriers 310, realizing highly automated operation. In other embodiments, the conveying module 300 can also adopt a conveyor belt, a conveying slide rail, etc.

[0046] In this embodiment, the number of battery carriers 310 is six, and the number of welding modules 200 is two to simultaneously realize the welding of two batteries to be welded and tabs, effectively improving the efficiency; in other embodiments, the specific number of each module or component can be adjusted based on actual needs, such as adopting three welding modules 200.

[0047] In some embodiments, as shown in combination with Figure 3 and Figure 4 the clamping mechanism 320 further includes a plug-in component 323. The plug-in component 323 is adapted to move along the conveying direction under the drive of the clamping drive member 321; the plug-in component 323 includes a telescopic plug head 3231, and the clamping component 322 is provided with a plug-in hole 3221 corresponding to the plug head 3231. In the linkage state, the plug head 3231 is connected to the plug-in hole 3221, and in the separated state, the plug head 3231 is separated from the plug-in hole 3221.

[0048] In this embodiment, when it is necessary to clamp and fix the tab and the battery to be welded (before the battery to be welded and the tab are transported to the welding module 200 for welding), the plug connector 3231 and the socket 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 tab, and the entire assembly of the battery carrier 310, the battery to be welded, the tab, and the clamping assembly 322 moves along the conveying direction to the welding module 200. The welding module 200 welds the tab and the battery to be welded. After welding is completed, the plug connector 3231 extends and connects with the socket hole 3221, and the clamping mechanism 320 switches to the linkage state. The clamping drive 321 is power-coupled with the clamping assembly 322, driving the clamping assembly 322 to move upstream of the welding module 200, and then fixing the next set of the battery to be welded and the tab.

[0049] The power transmission between the clamping drive 321 and the clamping assembly 322 is realized by setting the cooperation between the plug connector 3231 and the socket hole 3221, with a simple and reliable structure and high positioning accuracy, ensuring the stable and efficient operation of the device.

[0050] In this embodiment, the telescoping of the plug connector 3231 can be realized by a cylinder, a slide table module, a lead screw module, etc.

[0051] In other embodiments, the implementation form of the switching between the linkage state and the separated state between the clamping assembly 322 and the clamping drive 321 can also be a magnetic connection that can be turned on and off (such as using an electromagnet, which generates magnetism when energized to make the clamping assembly 322 and the clamping drive 321 in linkage), a clutch, etc.

[0052] In some embodiments, as shown in Figure 3 and Figure 4 , the battery carrier 310 is provided with a clamping portion 311. The clamping assembly 322 includes a first jaw 3222 and a second jaw 3223. The first jaw 3222 is adapted to clamp and fix the battery to be welded and the tab; the second jaw 3223 is adapted to clamp the clamping portion 311.

[0053] In this embodiment, the fixation between the battery carrier 310 and the clamping assembly 322 is realized by the cooperation between the clamping portion 311 and the second jaw 3223. The first jaw 3222 is used to fix the battery to be welded and the tab on the basis of the relative fixation between the battery carrier 310 and the clamping assembly 322, so that when the battery carrier 310 drives the clamping assembly 322 to move, the acting force between the two will not act on the battery to be welded and the tab, effectively protecting the battery to be welded and the tab, and improving the positioning accuracy of the two, ensuring the welding effect.

[0054] In some embodiments, as shown in Figure 3 and Figure 4As shown, the clamping assembly 322 further includes a clamping base 3224. The first jaw 3222 includes a first vertical movement module 32221, a first clamping arm 32222, a second vertical movement 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 movement module 32221, and the second clamping arm 32224 moves relative to the clamping base 3224 under the drive of the second vertical movement module 32223.

[0055] In this embodiment, both the first vertical movement module 32221 and the second vertical movement module 32223 drive the corresponding clamping arms to move along the Z direction shown in the figure. The independently moving first clamping arm 32222 and 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 and fixing the tab and the battery to be welded, so as to adapt to tabs or batteries to be welded with different thicknesses and sizes. Moreover, there is no linkage structure between the first clamping arm 32222 and the second clamping arm 32224, effectively reducing the volume of the clamping assembly 322.

[0056] In this embodiment, the first vertical movement module 32221 and the second vertical movement module 32223 can adopt air cylinders. Of course, slide table modules, lead screw modules, etc. can also be used.

[0057] In some embodiments, as shown in Figure 3 the conveying module 300 further includes a plurality of support assemblies 330. The support assemblies 330 correspond to the battery carriers 310 one by one and are arranged below the battery carriers 310. The support assembly 330 includes a support head 331 and a support driving member 332. The support head 331 moves under the drive of the support driving member 332 to support the welding point of the battery to be welded.

[0058] In this embodiment, a plurality of support assemblies 330 are arranged at specific positions along the conveying direction (the Z direction shown in the figure) (such as the position where the tab cooperates with the battery to be welded, or the welding position below the welding module 200). The welding point of the battery to be welded is supported by the support head 331 to ensure the fitting effect between the battery to be welded and the tab, and to ensure that the clamping assembly 322 stably clamps and fixes the welding point of the tab and the battery to be welded. Moreover, during the welding of the welding module 200, the support of the support assembly 330 avoids poor contact between the welding point and the tab, ensuring the welding effect.

[0059] In some embodiments, as shown in Figure 3 and Figure 4 the clamping assembly 322 further includes a horizontal movement module 3225. The clamping base 3224 can move away from the battery carrier 310 under the drive of the horizontal movement module 3225, so that the clamping assembly 322 can avoid the support assembly 330.

[0060] In this embodiment, the horizontal movement module 3225 can drive the clamping base 3224 to move in the Y direction, so that the clamping base 3224 drives the clamping assembly 322 as a whole to avoid the support 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.

[0061] In this embodiment, the horizontal movement module 3225 can adopt a cylinder. Of course, a slide table module, a lead screw module, etc. can also be adopted.

[0062] In some embodiments, as shown in Figure 1 , Figure 2 , Figure 5 and Figure 6 , the tab loading module 100 includes a tab handling module 110, a first tab loading module 120, and a tab detection and loading module 130. The first tab loading module 120 includes a tab transfer and positioning mechanism 121. The tab transfer and positioning mechanism 121 is connected between the tab detection and loading module 130 and the tab handling module 110. The tab handling module 110 is adapted to handle the tabs in the first tab loading module 120. The tab transfer and 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 (the illustrated X direction) 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 a first direction ( Figure 5 the Y direction in Figure 5 ) and push against the tab, and the second tab positioning member 12113 can move along a second direction ( Figure 5 the X direction in ) and push against the tab, so that the tab abuts against the groove wall of the tab positioning groove 12111. Among them, 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 (the illustrated X direction).

[0063] In this embodiment, the tab detection and loading module 130 detects the tabs 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 tabs to move into the working range of the tab handling module 110, waiting for the tab handling module 110 to handle the tabs in the tab positioning seat 1211; in the tab positioning seat 1211, the tabs are placed in the tab positioning groove 12111, and the first tab positioning member 12112 and the second tab positioning member 12113 push against the tabs from the first direction and the second direction, so that the tabs fit against the groove wall of the tab positioning groove 12111, realizing the positioning of the tabs in the tab positioning groove 12111 and ensuring that the tab handling module 110 can accurately pick up and handle the tabs from the tab positioning groove 12111.

[0064] In this embodiment, by synchronizing the positioning process and the transfer process of the tab, while realizing the automatic feeding process of the tab, the accurate and efficient handling of the tab is ensured.

[0065] In this embodiment, the tab handling module 110 is in the form of a multi-axis robotic arm, and the multi-axis robotic arm can achieve flexible handling of the tab; in other embodiments, the tab handling module 110 can also adopt a combination of several linear modules and a manipulator to move and handle the tab in three-dimensional space through the cooperation of the linear module and the manipulator.

[0066] In this embodiment, the number of tab handling modules 110 is two to simultaneously handle two tabs, effectively improving the efficiency; in other embodiments, the specific number can be adjusted based on actual requirements, such as setting three tab handling modules 110.

[0067] In this embodiment, along Figure 5 There are two tab transfer and positioning mechanisms 121 arranged side by side in the Y direction, and each tab transfer and positioning mechanism 121 is provided with two tab positioning seats 1211 to adapt to the 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 one time.

[0068] In some embodiments, as shown in combination with Figure 5 and Figure 6 The tab positioning seat 1211 includes a moving substrate 127, a first tab positioning seat 125, and a second tab positioning seat 126. The first side of the moving substrate 127 is connected to the tab transfer moving part 1212, and the second side of the moving substrate 127 is provided with the first tab positioning seat 125 and the second tab positioning seat 126. Among them, the first tab positioning seat 125 is fixed to the moving substrate 127, and the second tab positioning seat 126 is slidably connected to the moving substrate 127 along the transfer direction.

[0069] In this embodiment, the second tab positioning seat 126 controls the distance from the first tab positioning seat 125 through sliding, and makes adaptive adjustments for tabs of different specifications or the tab handling module 110 to ensure that when multiple tab handling modules 110 operate simultaneously, the picking and handling of the tab by the tab handling module 110 will not interfere.

[0070] In this embodiment, the sliding connection between the second tab positioning seat 126 and the moving substrate 127 can be realized through a slide rail, and the second tab positioning seat 126 is driven to move by a cylinder; in other embodiments, a slide table module, a lead screw module, etc. can also be used.

[0071] In some embodiments, as shown in combination with Figure 1 and Figure 2As shown, the first tab loading module 120 further includes 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 and positioning mechanism 121 and is adapted to detect the appearance of the tabs. The tab supplementary installation position is adapted to install a tab supplementary carrier plate 510, and the tab supplementary carrier plate 510 carries qualified tabs for replacing the unqualified tabs detected by the first tab detection camera 123.

[0072] In this embodiment, the tab handling module 110 picks up and moves the tabs from the tab transfer and positioning mechanism 121 to the first tab detection camera 123. The first tab detection camera 123 detects the appearance of the tabs. The qualified tabs will continue to be transported to the battery stage 310 to be fixed in cooperation with the battery to be welded. The unqualified tabs are transported into the recycling bin, and the tab handling module 110 picks up the qualified tabs from the tab supplementary carrier plate 510 again.

[0073] In this embodiment, by setting the tab supplementary carrier plate 510, it is ensured that in the case of unqualified tabs during automated transportation, the tab handling module 110 can quickly replenish qualified tabs from the tab supplementary carrier plate 510, avoiding the long waiting time of the battery tab automatic welding device and effectively improving production efficiency.

[0074] In this embodiment, the first tab loading module 120 further includes a battery detection camera 124. The battery detection camera 124 is arranged above the battery stage 310 and is used to photograph and detect the welding points of the battery to be welded, so as to ensure that the tab handling module 110 can adjust the tab position based on the shooting results of the battery detection camera 124.

[0075] In some embodiments, in combination with Figure 1 and Figure 2 As shown, the battery tab automatic welding device further includes an outgoing inspection module 400. The outgoing inspection module 400 is arranged downstream of the welding module 200. The conveying module 300 is connected to the tab loading module 100, the welding module 200, and the outgoing inspection module 400. The outgoing inspection module 400 includes a battery AOI (Automatic Optical Inspection) detection mechanism and a battery solder joint AOI detection mechanism 420. By using the battery AOI detection mechanism 410 to detect the appearance of the battery and the battery solder joint AOI detection mechanism 420 to detect the appearance of the solder joints, it is ensured that the welded batteries are qualified and the manual screening cost is reduced.

[0076] In this embodiment, the outgoing inspection module 400 further includes an outgoing handling mechanism 430 and a defective product outgoing conveyor line 440. The products that are unqualified by the battery AOI detection mechanism 410 or the battery solder joint AOI detection mechanism 420 in the previous process will be transported by the outgoing handling mechanism 430 to the defective product outgoing conveyor line 440 and re-inspected manually. 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.

[0077] On the other hand, the present invention also provides a battery production line, including the automatic battery tab welding device as described in the above embodiments.

[0078] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the scope of knowledge possessed by those of ordinary skill in the art.

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 clamping mechanism (320) and a plurality of battery carriers (310); 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); 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); The clamping assembly (322) further comprises a clamping base (3224); the first clamping jaw (3222) comprises a first vertical moving module (32221), a first clamping arm (32222), a second vertical moving 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 moving module (32221); and the second clamping arm (32224) moves relative to the clamping base (3224) under the drive of the second vertical moving module (32223); The conveying module (300) further comprises a plurality of support assemblies (330), the support assemblies (330) corresponding one to one with the battery carrier (310) and arranged below the battery carrier (310), the support assemblies (330) comprising a support head (331) and a support driving member (332), the support head (331) moving and supporting the welding point of the battery to be welded under the drive of the support driving member (332); 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).

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 or 2, 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.

4. The battery tab automatic welding device according to claim 3, 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).

5. The battery tab automatic welding device according to claim 3, 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).

6. A battery production line, characterized in that: It comprises the battery tab automatic welding device as described in any one of claims 1 to 5.

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