Automatic laser welding device for silver fiber sheets of battery electrodes

Abstract

The present invention belongs to the field of battery processing technology, and specifically relates to an automatic laser welding device for silver fiber sheets for battery electrodes; an automatic laser welding device for silver fiber sheets for battery electrodes, comprising a feeding mechanism and a welding mechanism, the welding mechanism is installed on a processing table, the feeding mechanism is connected to the welding mechanism, the welding mechanism comprises a conveying assembly, a welding assembly and a welding frame, the conveying assembly is installed on the processing table through the welding frame, and the welding assembly is installed on the processing table; the present invention provides an automatic laser welding device for silver fiber sheets for battery electrodes to solve the problem that the automated laser welding equipment for battery electrode welding in the prior art cannot support the automated loading and processing of electrode materials of various structures, and does not support the automated loading, automated state correction and automated processing of welding materials and electrode materials, thereby solving the problem that the overall processing efficiency of the existing laser welding equipment for battery electrode welding is relatively low and the processing range is relatively limited.

Description

Technical Field

[0001] The invention belongs to the technical field of battery processing, and in particular relates to an automatic laser welding device for silver fiber sheets of battery electrodes. Background Art

[0002] Laser welding is an efficient and precise welding method that uses a high-energy-density laser beam as a heat source. It is suitable for precision welding because the welding process can be very accurately controlled during laser welding, including welding position, welding depth and welding speed. In addition, the heat-affected zone produced by laser welding is small, and the weld is narrow and smooth, which reduces thermal deformation and material damage. Applying laser welding technology to battery electrode welding can effectively improve the quality of battery electrodes, thereby improving the overall performance and reliability of the battery.

[0003] Among the existing laser welding equipment, there is almost no dedicated laser welding equipment for battery electrode welding. Laser welding can only be performed by manually taking the welding materials and battery electrodes and repeatedly controlling the laser welding head. There are also a few specially customized automated laser welding equipment that can relatively easily complete the laser welding of battery electrodes, but these equipment often only support the automated loading and processing of electrode materials of a single structure, and cannot support the automated processing of electrode materials of multiple different structures. In addition, they do not support the automated loading, automated state correction and automated processing of welding materials and electrode materials together, resulting in relatively low overall processing efficiency and a relatively limited processing range of existing laser welding equipment for battery electrode welding. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides an automatic laser welding device for silver fiber sheets of battery electrodes, so as to solve the problem that the automated laser welding equipment used for battery electrode welding in the prior art cannot support the automated loading and processing of electrode materials of various different structures, and does not support the joint automated loading, automated state correction and automated processing of welding materials and electrode materials, thereby solving the problem that the overall processing efficiency of the existing laser welding equipment used for battery electrode welding is relatively low and the processing range is relatively limited.

[0005] One solution of the present invention provides an automatic laser welding device for silver fiber sheets of battery electrodes, comprising a feeding mechanism and a welding mechanism, wherein the welding mechanism is installed on a processing table, the feeding mechanism comprises an electrode material feeding assembly and a welding material feeding assembly, the electrode material feeding assembly and the welding material feeding assembly are both connected to the welding mechanism, the feeding mechanism is connected to the welding mechanism, the feeding mechanism is used to feed the electrode material and the welding material into the welding mechanism, and the welding mechanism comprises:

[0006] A conveying assembly, the conveying assembly comprising an electrode material conveying assembly and a welding material conveying assembly, the electrode material conveying assembly is connected to the electrode material feeding assembly, and the welding material conveying assembly is connected to the welding material feeding assembly;

[0007] The electrode material conveying assembly is used to receive and pre-process the electrode material from the electrode material feeding assembly, to adjust the feeding state of the electrode material that does not meet the processing requirements on the electrode material feeding assembly, and to convey the pre-processed electrode material to the welding position;

[0008] The welding material conveying assembly is used to receive and pre-process the welding material from the welding material feeding assembly, so as to adjust the feeding state of the welding material that does not meet the processing requirements on the welding material feeding assembly, and convey the pre-processed welding material to the welding position;

[0009] A welding assembly, used to complete laser welding between an electrode material and a welding material located at a welding position;

[0010] a welding frame for supporting the conveyor assembly;

[0011] The conveying assembly is mounted on the processing table through the welding frame, and the welding assembly is mounted on the processing table.

[0012] It should be noted that the welding frame is equipped with a plurality of driving devices for driving corresponding components in the transmission assembly and the welding assembly, including motors, cylinders and other driving devices related to the field, to drive the normal operation of the transmission assembly and the welding assembly.

[0013] It should be additionally explained that the electrode material may be a copper sheet, and the welding material may be a silver fiber strip. The present invention can feed the copper sheet and the silver fiber strip to be welded to the conveying assembly through the feeding assembly, and realize the conveying work of the copper sheet and the silver fiber strip to be welded through the conveying assembly. During the conveying process of the copper sheet and the silver fiber strip to be welded, the cutting piece installed on the conveying assembly completes the cutting of the silver fiber strip and the conveying of the silver fiber sheet, and finally conveys the copper sheet and the silver fiber sheet to the welding position for laser welding by the welding assembly.

[0014] Specifically, the conveying assembly in the present invention may be composed of an electrode material conveying assembly and a welding material conveying assembly. In the actual processing process, the electrode material conveying assembly and the welding material conveying assembly respectively convey the copper sheet and the silver fiber strip to different positions in the welding mechanism for pretreatment, and convey the copper sheet and the silver fiber strip to the welding position after the pretreatment is completed; wherein, the pretreatment of the copper sheet may specifically be adjusting the position and direction of the copper sheet, and the pretreatment of the silver fiber strip may specifically be straightening and cutting the silver fiber strip, that is, straightening the silver fiber strip by the silver fiber strip conveying assembly, and cutting the silver fiber strip into silver fiber sheets of preset sizes by the cutting piece on the silver fiber strip conveying assembly;

[0015] Take one of the processing processes as an example:

[0016] In the actual processing process, the copper sheet enters the copper sheet conveying assembly through the feeding mechanism and is pre-processed in the electrode material conveying assembly to complete the adjustment of the position and direction of the copper sheet. After the pre-processing is completed, the electrode material conveying assembly conveys the copper sheet to the welding position;

[0017] Synchronously, the silver fiber strips enter the welding material conveying assembly through the feeding mechanism and are pre-processed in the welding material conveying assembly to complete the straightening and cutting of the silver fiber strips. After the pre-processing is completed, the welding material conveying assembly conveys the cut silver fiber sheets to the welding position;

[0018] When the copper sheet and the silver fiber sheet are located at the welding position together, the welding assembly in the welding mechanism completes the subsequent welding process;

[0019] The above scheme is only one of the processing processes. The present invention can also be based on actual needs, by adding multiple welding mechanisms and correspondingly adding multiple feeding mechanisms, or adding pretreatment points and welding positions on the conveying components, to achieve multi-point automated processing or multi-point pretreatment on the conveying components in the welding mechanism, thereby improving the overall welding efficiency and processing range;

[0020] Specifically, the electrode material structure from the feeding mechanism may include two or more types, which can be specifically respectively pre-processed on different electrode material conveying components designed for electrode materials of different structures, and finally conveyed to different welding positions. Different welding positions correspond to welding material conveying components that meet the target requirements to pre-process the welding materials, and then process the welding materials that meet the target requirements and convey them to the welding positions for different welding mechanisms to perform welding work.

[0021] It should be further explained that the electrode material feeding assembly and the welding material feeding assembly in the feeding mechanism are respectively used to feed the electrode material and the welding material into the welding mechanism, wherein the electrode material feeding assembly can be set to a variety of different structures adapted to the specific structure of the electrode material to meet the feeding requirements of electrode materials of various different structures, and the welding material feeding assembly is the same, and the electrode material feeding assembly and the welding material feeding assembly can respectively and synchronously complete the feeding work of the electrode material and the welding material; specifically, the specific structures that the electrode material feeding assembly and the electrode material feeding assembly can be set to are described in detail below and will not be repeated here.

[0022] It should be additionally explained that the electrode material conveying assembly and the welding material conveying assembly are respectively connected to the electrode material feeding assembly and the welding material feeding assembly, and complete their respective pretreatment work at the electrode material feeding assembly and the welding material feeding assembly, respectively; specifically, the pretreatment work of the electrode material includes operations such as adjusting the position and direction of the electrode material, and the specific pretreatment content can be designed according to the structure and feeding state of the electrode material; the pretreatment work of the welding material includes cutting of the welding material or other operations that facilitate cutting, such as stretching, curling, etc., so that the electrode material or the welding material is transformed into the correct state to be processed during the pretreatment process, and the specific pretreatment content can be designed according to the characteristics of the welding material.

[0023] In this solution, the present invention can realize the automatic feeding and processing of electrode materials of various structures by setting a feeding mechanism and a welding mechanism, and can also realize the common automatic feeding, automatic state correction and automatic processing of electrode materials and welding materials, thereby improving the overall processing efficiency of the laser welding equipment for battery electrode welding and expanding the processing range of the laser welding equipment for battery electrode welding;

[0024] In addition, the present invention can feed electrode materials of different structures into the conveying assembly through the electrode material feeding assembly and the welding material feeding assembly, and can feed the welding material synchronously when the electrode material is fed, so as to feed the welding material synchronously into the conveying assembly, thereby improving the feedable range of the feedable mechanism in the present invention, and finally improving the processable range and overall processing efficiency of the present invention;

[0025] In addition, the present invention can, through the electrode material conveying assembly and the welding material conveying assembly, on the one hand, pre-treat the electrode material and welding material from the electrode material feeding assembly and the welding material feeding assembly, and on the other hand, can convey the pre-treated electrode material and welding material to the welding position for the welding assembly to complete the laser welding between the electrode material and the welding material, so as to realize the automatic loading of the electrode material and the welding material, and cooperate with the welding assembly to realize the automatic processing of the electrode material and the welding material.

[0026] In one of the schemes, the electrode material conveying assembly includes a curved material conveying component, a planar material conveying component, a combined guide rail and an identification and distinguishing component. The combined guide rail includes a main rail, a first branch guide rail and a second branch guide rail. The identification and distinguishing component is installed on the main rail. The curved material conveying component is connected to the first branch guide rail, and the planar material conveying component is connected to the second branch guide rail. The identification and distinguishing component is used to identify and distinguish curved electrode materials and planar electrode materials, so as to cooperate with the combined guide rail to convey the curved electrode materials and planar electrode materials on the combined guide rail to the curved material conveying guide rail and the planar material conveying guide rail respectively through the first branch guide rail and the second branch guide rail.

[0027] In one of the schemes, the identification and distinguishing component includes a visual camera, a distinguishing pusher and a visual processing module. The distinguishing pusher is installed on one side of the main rail, the visual camera is installed above the main rail, and the visual processing module is used to process the visual data obtained by the visual camera and control the working state of the distinguishing pusher according to the visual data.

[0028] It should be noted that the visual processing module is provided with a signal transceiver and a processor capable of correspondingly receiving and processing visual data, and is also provided with a controller capable of controlling and distinguishing the working state of the pusher according to the working signal sent by the processor.

[0029] It should be additionally explained that, in actual use, the flat material and the curved material can be fed together through the feeding mechanism and reach the guide rail, and the guide rail can identify the flat material and the curved material through the visual camera in the identification and differentiation component, and then the flat material and the curved material can be respectively conveyed to the flat material conveying guide rail and the curved material conveying guide rail through the differentiation pusher for subsequent processing.

[0030] It should be noted that the installation of the visual camera can be completed by placing an external bracket on the main rail and installing the visual camera on the external bracket. The distinguishing pusher can specifically include two electric cylinders, and push blocks are installed on the output ends of the two electric cylinders. Both electric cylinders are controlled by the visual processing module.

[0031] In this solution, by setting up identification and distinguishing components and using guide rails, the joint loading of curved electrode materials and flat electrode materials can be achieved, and the loaded curved electrode materials or flat electrode materials can be identified and distinguished in advance so as to transport them to the corresponding flat material conveying components or curved material conveying components for subsequent processing.

[0032] In one of the schemes, the planar material conveying component includes a planar material conveying guide rail and a planar material transfer adjusting member, the planar material conveying guide rail is connected to the second branch guide rail, the planar material transfer adjusting member is arranged on the planar material conveying guide rail, and a welding position is opened on the planar material conveying guide rail.

[0033] In one of the schemes, the planar material transfer adjustment member includes a clamping member, a first rotating member and a first pushing member, the clamping member is movably connected to the first rotating member, the first pushing member is located on one side of the clamping member, the clamping member is used to clamp the planar electrode material, the first rotating member is used to drive the clamping member to rotate, and the first pushing member is used to push the planar electrode material located on the planar material conveying guide rail.

[0034] It should be noted that the present solution is specifically used for conveying planar electrode materials; the clamping member includes two clamping parts capable of clamping the planar electrode materials, the two clamping parts are movably connected to the rotating member, a notch for the first pusher to extend into is provided on the planar material conveying guide rail, the first rotating member may specifically be a rotating disk, the rotating disk is used to drive the clamping part to rotate, the clamping part is used to clamp the planar electrode material located on the planar material conveying guide rail, and the clamping part cooperates with the first rotating member to adjust the position and direction of the planar electrode material;

[0035] During the actual processing process, a reversing position is opened on the planar material conveying guide rail, and the reversing position is used to temporarily place the planar electrode material so that the first pushing member can push the planar electrode material to the other conveying direction of the planar material conveying guide rail; the planar electrode material is loaded from the feeding mechanism through the planar material conveying guide rail, and when the planar electrode material reaches the reversing position, the first pushing member pushes the planar electrode material at the reversing position to the other conveying direction of the planar electrode material conveying guide rail to achieve position and direction adjustment of the planar electrode material.

[0036] In this scheme, through the cooperation of the planar material conveying guide rail and the planar material transfer adjustment member, on the one hand, the position and direction of the planar electrode material can be guaranteed to be accurate when it arrives at the welding position, and on the other hand, the conveying work of the planar electrode material can be completed, so as to convey the planar electrode material from the feeding mechanism to the welding position, thereby facilitating the subsequent processing of the welding assembly.

[0037] In one of the schemes, the bending material conveying component includes a bending material conveying guide rail and a bending material transfer adjusting member, the bending material conveying guide rail is connected to the first branch guide rail, the bending material transfer adjusting member is arranged on the bending material conveying guide rail, and another welding position is opened on the bending material conveying guide rail.

[0038] In one of the schemes, the bending material transfer adjustment member includes a positioning member, a second rotating member and a second pushing member, the positioning member is fixedly connected to the second rotating member, the second pushing member is located on one side of the second rotating member, the positioning member is used to position and place the bending electrode material, the rotating member is used to drive the positioning member to rotate, and the second pushing member is used to push the bending electrode material located on the positioning member.

[0039] It should be noted that this solution is specifically used for conveying bent electrode materials; the positioning member is also provided with a gap for the pushing member to extend into, so as to push the bent electrode material back onto the bent material conveying guide rail;

[0040] In the actual processing process, the curved material conveying guide rail can be divided into a plane material conveying guide rail and a curved material conveying guide rail. The adjusting part is installed between the plane material conveying guide rail and the curved material conveying guide rail. The curved electrode material is loaded from the feeding mechanism through the plane material conveying guide rail and reaches the positioning part on the adjusting part. At this time, after the second rotating part rotates to the preset position, the pushing part extends from the gap and pushes the electrode material to the curved material conveying guide rail to complete the adjustment of the position and direction of the curved electrode material.

[0041] In this solution, through the cooperation of the bent material conveying guide rail and the adjusting member, on the one hand, the position and direction of the bent electrode material when it reaches the welding position can be guaranteed to be accurate, and on the other hand, the conveying work of the bent electrode material can be completed, so as to convey the bent electrode material from the feeding mechanism to the welding position, thereby facilitating the subsequent processing of the welding assembly.

[0042] In one of the schemes, the welding material conveying assembly includes a transmission part, a limiting part, a vacuum part and the cutting part. The transmission part is used to convey the welding material to the cutting part, the limiting part is used to limit the welding material so that the welding material located at the cutting part is in a horizontal state, and the vacuum part is used to absorb the cut welding material to the welding position.

[0043] It should be noted that the welding material conveying assembly also includes a mounting frame, on which the transmission member, the limit member, the vacuum member and the cutting member are all mounted, and the transmission member, the limit member, the vacuum member and the cutting member are all connected to corresponding driving devices, and the transmission member, the limit member, the vacuum member and the cutting member cooperate with each other to complete the conveying and cutting of the welding material;

[0044] Specifically, the transmission member includes a plurality of transmission pulleys, the limiting member includes a limiting groove provided on the mounting frame, the vacuum member includes a mechanical arm mounted on the mounting frame and a vacuum suction nozzle mounted on the mechanical arm, the vacuum suction nozzle is externally connected to a vacuum pumping device, and the cutting member includes a cutter and a sensor mounted in the mounting frame, and the cutter is located above the limiting groove;

[0045] In the actual processing process, the welding material is loaded through the transmission pulley and moves to the limit groove under the transmission of the transmission pulley. When the sensor senses the welding material, it sends a signal to the drive device of the cutter according to a certain interval time. The drive device of the cutter controls the cutter to cut. The cut welding material will be sucked up by the vacuum nozzle, and the robot arm will drive the vacuum nozzle to move to the welding position in the process. The vacuum nozzle stops sucking after reaching the welding position, so that the welding material is placed on the pre-treated electrode material to wait for the welding assembly to be processed.

[0046] In this solution, through the coordination between the transmission parts, limit parts, vacuum parts and cutting parts, on the one hand, the same-size cutting of welding materials can be achieved to ensure that the size of the welding materials is compatible with the electrode materials. On the other hand, the automatic loading of welding materials can be achieved to transport the welding materials to the welding position to ensure that the electrode material and the welding material are in the same welding position, which is convenient for the welding assembly to realize laser processing of the electrode material and the welding material.

[0047] In one of the schemes, the welding assembly includes a laser base and a laser welding head, the laser welding head is installed on the laser base, the laser welding head is located above the welding position, the welding frame includes a welding base and a mounting plate, and the transmission assembly is installed on the mounting plate.

[0048] In this solution, the welding base can be used to install multiple driving devices for driving the transmission component on the one hand, and can be used to support the transmission component on the other hand, and integrate the welding mechanism and the feeding mechanism to reduce the space occupied by the equipment and increase space utilization.

[0049] In one embodiment, at least one welding position is provided, and the number of the laser welding heads is the same as the number of the welding positions.

[0050] It should be noted that the welding assembly also includes a blanking piece, which is used to blank the welded workpiece, and each welding position is provided with a blanking piece for blanking.

[0051] In this solution, the user can design the position and number of welding positions according to the target requirements, and the number of laser welding heads can be changed according to the number of welding positions. Such a design can increase the overall production efficiency of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0053] Figure 1 It is a partial structural schematic diagram of an automatic laser welding device for silver fiber sheets of battery electrodes of the present invention;

[0054] Figure 2 for Figure 1 Partial structural diagram of the welding mechanism;

[0055] Figure 3 for Figure 1 Another part of the structural diagram of the welding mechanism;

[0056] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0057] Figure 5 It is another partial structural schematic diagram of an automatic laser welding device for silver fiber sheets of battery electrodes of the present invention;

[0058] Figure 6 for Figure 5 Partial structural diagram of the welding mechanism;

[0059] Figure 7 for Figure 5 Another part of the structural diagram of the welding mechanism;

[0060] Figure 8 for Figure 7 Schematic diagram of the structure at B;

[0061] Fig. 9 It is a schematic diagram of the connection structure of the guide rail and the identification and distinction component in the automatic laser welding device of the silver fiber sheet of the battery electrode of the present invention;

[0062] Fig.10 A structural diagram for identifying and distinguishing components.

[0063] Among them, 1. feeding mechanism; 11. electrode material feeding assembly; 12. welding material feeding assembly; 2. welding mechanism; 21. conveying assembly; 211. plane material conveying component; 2111. plane material conveying guide rail; 2112. transfer adjustment member; 21121. clamping member; 21122. first rotating member; 21123. first pushing member; 21124. positioning member; 21125. second rotating member; 21126. second pushing member; 21127. bending material conveying component; 21128. bending material conveying guide rail; 212. welding Material conveying assembly; 2121, transmission part; 2122, limit part; 2123, vacuum part; 22, welding assembly; 221, welding position; 222, laser base; 223, laser welding head; 3, welding frame; 31, welding base; 32, mounting plate; 4, processing table; 5, electrode material; 6, welding material; 7, unloading part; 8, and using guide rails; 81, main guide rail; 82, first branch guide rail; 83, second branch guide rail; 9, identification and distinction components; 91, visual camera; 92, distinguishing pusher; 93, external bracket; 94, push block. DETAILED DESCRIPTION

[0064] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0065] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0066] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0067] Please refer to Figure 1-10 In one embodiment, an automatic laser welding device for silver fiber sheets of battery electrodes is provided, comprising a feeding mechanism 1 and a welding mechanism 2, wherein the welding mechanism 2 is installed on a processing table 4, wherein the feeding mechanism 1 comprises an electrode material feeding assembly 11 and a welding material feeding assembly 12, wherein the electrode material feeding assembly 11 and the welding material feeding assembly 12 are both connected to the welding mechanism 2, wherein the feeding mechanism 1 is connected to the welding mechanism 2, wherein the feeding mechanism 1 is used to feed the electrode material 5 and the welding material 6 into the welding mechanism 2, wherein the welding mechanism 2 comprises:

[0068] A conveying assembly 21, wherein the conveying assembly includes an electrode material conveying assembly and a welding material conveying assembly 212, wherein the electrode material conveying assembly is connected to the electrode material feeding assembly 11, and the welding material conveying assembly 212 is connected to the welding material feeding assembly 12;

[0069] The electrode material conveying assembly is used to receive and pre-process the electrode material from the electrode material feeding assembly 11, to adjust the feeding state of the electrode material that does not meet the processing requirements on the electrode material feeding assembly 11, and to convey the pre-processed electrode material to the welding position 221;

[0070] The welding material conveying assembly 212 is used to receive and pre-treat the welding material from the welding material feeding assembly 12, so as to adjust the feeding state of the welding material 6 that does not meet the processing requirements on the welding material 6 feeding assembly 12, and convey the pre-treated welding material 6 to the welding position 221;

[0071] A welding assembly 22, used to complete laser welding between the electrode material 5 and the welding material 6 located at the welding position 221;

[0072] A welding frame 3, used to support the conveying assembly 21;

[0073] The conveying assembly 21 is installed on the processing table 4 through the welding frame 3 , and the welding assembly 22 is installed on the processing table 4 .

[0074] It should be noted that the welding frame 3 is equipped with multiple driving devices for driving corresponding components in the transmission assembly 21 and the welding assembly 22, including motors, cylinders and other driving devices related to the field, to drive the transmission assembly 21 and the welding assembly 22 to work normally.

[0075] It should be additionally explained that the electrode material 5 can be specifically a copper sheet, and the welding material 6 can be specifically a silver fiber strip; the present invention can feed the copper sheet and the silver fiber strip to be welded to the conveying component 21 through the feeding component, and realize the conveying work of the copper sheet and the silver fiber strip to be welded through the conveying component 21. During the conveying process of the copper sheet and the silver fiber strip to be welded, the cutting member (not shown) installed on the conveying component 21 completes the cutting of the silver fiber strip and the conveying of the silver fiber sheet, and finally the copper sheet and the silver fiber sheet are conveyed to the welding position 221 for laser welding by the welding component 22;

[0076] Specifically, the conveying component 21 in the present invention can be composed of an electrode material conveying component and a welding material conveying component 212. In the actual processing process, the electrode material conveying component and the welding material conveying component 212 respectively convey the copper sheet and the silver fiber strip to different positions in the welding mechanism 2 for pretreatment, and convey the copper sheet and the silver fiber strip to the welding position 221 after the pretreatment is completed; wherein, the pretreatment of the copper sheet can specifically be to adjust the position and direction of the copper sheet, and the pretreatment of the silver fiber strip can specifically be to straighten and cut the silver fiber strip, that is, the silver fiber strip is straightened by the silver fiber strip conveying component 21, and the silver fiber strip is cut into silver fiber sheets of preset size by the cutting piece (not shown) on the silver fiber strip conveying component 21;

[0077] Take one of the processing processes as an example:

[0078] In the actual processing process, the copper sheet enters the copper sheet conveying assembly 21 through the feeding mechanism 1 and is pre-processed in the electrode material conveying assembly to complete the adjustment of the position and direction of the copper sheet. After the pre-processing is completed, the electrode material conveying assembly conveys the copper sheet to the welding position 221;

[0079] Synchronously, the silver fiber strips enter the welding material conveying assembly 212 through the feeding mechanism 1, and are pre-processed in the welding material conveying assembly 212 to complete the straightening and cutting of the silver fiber strips. After the pre-processing is completed, the welding material conveying assembly 212 conveys the cut silver fiber sheet to the welding position 221;

[0080] When the copper sheet and the silver fiber sheet are located at the welding position 221, the welding assembly 22 in the welding mechanism 2 completes the subsequent welding process;

[0081] The above embodiment is only one of the processing processes. The present invention can also be based on actual needs, by adding multiple welding mechanisms 2 and correspondingly adding multiple feeding mechanisms 1, or adding pretreatment points and welding positions 221 on the conveying component 21, to achieve multi-point automated processing or multi-point pretreatment on the conveying component 21 in the welding mechanism 2, thereby improving the overall welding efficiency and processing range;

[0082] Specifically, the structure of the electrode material 5 from the feeding mechanism 1 can include two or more types, which can be specifically respectively pre-processed on different electrode material conveying components designed for electrode materials 5 of different structures, and finally conveyed to different welding positions 221. Different welding positions 221 correspond to welding material conveying components 212 that meet the target requirements to pre-process the welding material 6, and then process the welding material 6 that meets the target requirements and convey it to the welding position 221 for different welding mechanisms 2 to perform welding work.

[0083] It should be further explained that the electrode material feeding assembly 11 and the welding material feeding assembly 12 in the feeding mechanism 1 are respectively used to feed the electrode material and the welding material into the welding mechanism 2, wherein the electrode material feeding assembly 11 can be set to a variety of different structures adapted to the specific structure of the electrode material 5 to meet the feeding requirements of electrode materials 5 of various different structures, and the welding material feeding assembly 12 is the same, and the electrode material feeding assembly 11 and the welding material feeding assembly 12 can respectively and synchronously complete the feeding work of the electrode material 5 and the welding material 6; specifically, the specific structures that the electrode material feeding assembly 11 and the electrode material feeding assembly 12 can be set to are described in detail below and will not be repeated here.

[0084] It should be additionally explained that the electrode material conveying assembly and the welding material conveying assembly 212 are respectively connected to the electrode material feeding assembly 11 and the welding material feeding assembly 12, and complete their respective pretreatment work at the electrode material feeding assembly 11 and the welding material feeding assembly 12; specifically, the pretreatment work of the electrode material 5 includes operations such as adjusting the position and direction of the electrode material 5, and the specific pretreatment content can be designed according to the structure and feeding state of the electrode material 5; the pretreatment work of the welding material 6 includes cutting of the welding material 6 or other operations that facilitate cutting, such as stretching, curling, etc., so that the electrode material 5 or the welding material 6 is transformed into the correct state to be processed during the pretreatment process, and the specific pretreatment content can be designed according to the characteristics of the welding material 6.

[0085] In this embodiment, the present invention can realize the automatic feeding and processing of electrode materials 5 of various structures by setting the feeding mechanism 1 and the welding mechanism 2, and can also realize the common automatic feeding, automatic state correction and automatic processing of the electrode material 5 and the welding material 6, thereby improving the overall processing efficiency of the laser welding equipment for battery electrode welding and expanding the processing range of the laser welding equipment for battery electrode welding;

[0086] In addition, the present invention can feed electrode materials 5 of different structures into the conveying assembly through the electrode material feeding assembly 11 and the welding material feeding assembly 12, and can feed the welding material 6 synchronously when the electrode material 5 is fed, so as to feed the welding material 6 synchronously into the conveying assembly, thereby improving the feedable range of the feeding mechanism 1 in the present invention, and finally improving the processable range and overall processing efficiency of the present invention;

[0087] In addition, the present invention can pre-treat the electrode material 5 and welding material from the electrode material feeding assembly 11 and the welding material feeding assembly 12 through the electrode material conveying assembly and the welding material conveying assembly 212, and can convey the pre-treated electrode material 5 and welding material 6 to the welding position 221 for the welding assembly 22 to complete the laser welding between the electrode material 5 and the welding material 6, so as to realize the automatic loading of the electrode material and the welding material 6, and cooperate with the welding assembly 22 to realize the automatic processing of the electrode material 5 and the welding material 6.

[0088] In one of the schemes, the electrode material conveying assembly includes a curved material conveying component 21127, a planar material conveying component 211, a combined guide rail 8 and an identification and distinguishing component 9, the combined guide rail 8 includes a main rail 81, a first branch guide rail 82 and a second branch guide rail 83, the identification and distinguishing component 9 is installed on the main rail 81, the curved material conveying component 21127 is connected to the first branch guide rail 82, the planar material conveying component 211 is connected to the second branch guide rail 83, the identification and distinguishing component 9 is used to identify and distinguish curved electrode materials and planar electrode materials, so as to cooperate with the combined guide rail 8, and convey the curved electrode materials and planar electrode materials on the combined guide rail 8 to the curved material conveying guide rail 21128 and the planar material conveying guide rail 2111 respectively through the first branch guide rail 82 and the second branch guide rail 83.

[0089] In one of the schemes, the identification and distinguishing component 9 includes a visual camera 91, a distinguishing pusher 92 and a visual processing module. The distinguishing pusher 92 is installed on one side of the main rail 81, and the visual camera 91 is installed above the main rail 81. The visual processing module is used to process the visual data obtained by the visual camera 91 and control the working state of the distinguishing pusher 92 according to the visual data.

[0090] It should be noted that the visual processing module is provided with a signal transceiver and a processor capable of correspondingly receiving and processing visual data, and is also provided with a controller capable of controlling and distinguishing the working state of the push member 92 according to the working signal sent by the processor.

[0091] It should be additionally explained that, in actual use, the flat material and the curved material can be fed together through the feeding mechanism 1 and arrive at the guide rail 8, and the guide rail 8 can identify the flat material and the curved material through the visual camera 91 in the identification and distinguishing component 9, and then the flat material and the curved material are respectively conveyed to the flat material conveying guide rail 2111 and the curved material conveying guide rail 21128 through the distinguishing push member 92 for subsequent processing.

[0092] It should be further explained that the installation of the visual camera 91 can be completed by placing an external bracket 93 on the main rail 81 and installing the visual camera 91 on the external bracket 93. The distinguishing pusher 92 can specifically include two electric cylinders. Push blocks 94 are installed on the output ends of the two electric cylinders. Both electric cylinders are controlled by the visual processing module.

[0093] In the present solution, by providing an identification and distinguishing component 9 and using a guide rail 8, it is possible to realize the joint loading of curved electrode materials and planar electrode materials, and the loaded curved electrode materials or planar electrode materials can be identified and distinguished in advance so as to transport them to the corresponding planar material conveying component 211 or curved material conveying component 21127 for subsequent processing.

[0094] In one of the schemes, the planar material conveying component 211 includes a planar material conveying guide rail 2111 and a planar material transfer adjusting member 2112. The planar material conveying guide rail 2111 is connected to the second branch guide rail 83. The planar material transfer adjusting member 2112 is arranged on the planar material conveying guide rail 2111. A welding position 221 is opened on the planar material conveying guide rail 2111.

[0095] In one of the schemes, the planar material transfer adjustment member 2112 includes a clamping member 21121, a first rotating member 21122 and a first pushing member 21123, the clamping member 21121 is movably connected to the first rotating member 21122, the first pushing member 21123 is located on one side of the clamping member 21121, the clamping member 21121 is used to clamp the planar electrode material, the first rotating member 21122 is used to drive the clamping member 21121 to rotate, and the first pushing member 21123 is used to push the planar electrode material located on the planar material conveying guide rail 2111.

[0096] It should be noted that the present solution is specifically used for conveying planar electrode materials; the clamping member 21121 includes two clamping parts capable of clamping planar electrode materials, the two clamping parts are movably connected to the rotating member, a notch is provided on the planar material conveying guide rail 2111 for the first pushing member 21123 to extend into, the first rotating member 21122 can specifically be a rotating disk, the rotating disk is used to drive the clamping part to rotate, the clamping part is used to clamp the planar electrode material located on the planar material conveying guide rail 2111, and the clamping part cooperates with the first rotating member 21122 to adjust the position and direction of the planar electrode material;

[0097] During the actual processing process, a reversing position is opened on the planar material conveying guide rail 2111, and the reversing position is used to temporarily place the planar electrode material so that the first pushing member 21123 can push the planar electrode material to the other conveying direction of the planar material conveying guide rail 2111; the planar electrode material is loaded from the feeding mechanism 1 through the planar material conveying guide rail 2111, and when the planar electrode material reaches the reversing position, the first pushing member 21123 pushes the planar electrode material at the reversing position to the other conveying direction of the planar electrode material conveying guide rail, so as to realize the position and direction adjustment of the planar electrode material.

[0098] In this solution, through the cooperation of the planar material conveying guide rail 2111 and the planar material transfer adjustment member 2112, on the one hand, the position and direction of the planar electrode material when it reaches the welding position 221 can be guaranteed to be accurate, and on the other hand, the conveying work of the planar electrode material can be completed, so as to convey the planar electrode material from the feeding mechanism 1 to the welding position 221, which is convenient for the subsequent processing of the welding assembly 22.

[0099] In one of the schemes, the bending material conveying component 21127 includes a bending material conveying guide rail 21128 and a bending material transfer adjusting member 2112, the bending material conveying guide rail 21128 is connected to the first branch guide rail 82, the bending material transfer adjusting member 2112 is arranged on the bending material conveying guide rail 21128, and another welding position 221 is opened on the bending material conveying guide rail 21128.

[0100] In one of the schemes, the bending material transfer adjustment member 2112 includes a positioning member 21124, a second rotating member 21125 and a second pushing member 21126, the positioning member 21124 is fixedly connected to the second rotating member 21125, the second pushing member 21126 is located on one side of the second rotating member 21125, the positioning member 21124 is used to position and place the bending electrode material, the rotating member is used to drive the positioning member 21124 to rotate, and the second pushing member 21126 is used to push the bending electrode material located on the positioning member 21124.

[0101] It should be noted that this solution is specifically used for conveying bent electrode materials; the positioning member 21124 also has a gap for the pushing member to extend into, so as to push the bent electrode material back to the bent material conveying guide rail 21128;

[0102] In the actual processing process, the curved material conveying guide rail 21128 can be divided into a plane material conveying guide rail 2111 and a curved material conveying guide rail 21128. The adjusting part is installed between the plane material conveying guide rail 2111 and the curved material conveying guide rail 21128. The curved electrode material is loaded from the feeding mechanism 1 through the plane material conveying guide rail 2111 and reaches the positioning part 21124 on the adjusting part. At this time, after the second rotating part 21125 rotates to the preset position, the pushing part extends from the gap and pushes the electrode material to the curved material conveying guide rail 21128 to complete the adjustment of the position and direction of the curved electrode material.

[0103] In this solution, through the cooperation of the bent material conveying guide rail 21128 and the adjusting part, on the one hand, the position and direction of the bent electrode material when it reaches the welding position 221 can be guaranteed to be accurate, and on the other hand, the conveying work of the bent electrode material can be completed, so as to convey the bent electrode material from the feeding mechanism 1 to the welding position 221, which is convenient for the subsequent processing of the welding assembly 22.

[0104] In one embodiment, the welding material conveying assembly 212 includes a transmission member 2121, a limiting member 2122, a vacuum member 2123 and the cutting member (not shown), the transmission member 2121 is used to convey the welding material 6 to the cutting member (not shown), the limiting member 2122 is used to limit the welding material 6 so that the welding material 6 located at the cutting member is in a horizontal state, and the vacuum member 2123 is used to absorb the cut welding material 6 to the welding position 221.

[0105] It should be noted that the welding material conveying assembly 212 further includes a mounting frame, on which the transmission member 2121, the stopper 2122, the vacuum member 2123 and the cutting member (not shown) are all mounted, and the transmission member 2121, the stopper 2122, the vacuum member 2123 and the cutting member (not shown) are all connected to corresponding driving devices, and the transmission member 2121, the stopper 2122, the vacuum member 2123 and the cutting member (not shown) cooperate with each other to complete the conveying and cutting of the welding material 6;

[0106] Specifically, the transmission member 2121 includes a plurality of transmission pulleys, the limiting member 2122 includes a limiting groove provided on the mounting frame, the vacuum member 2123 includes a mechanical arm mounted on the mounting frame and a vacuum suction nozzle mounted on the mechanical arm, the vacuum suction nozzle is externally connected to a vacuum pumping device, and the cutting member (not shown) includes a cutter and a sensor mounted in the mounting frame, and the cutter is located above the limiting groove;

[0107] During the actual processing, the welding material 6 is loaded through the transmission pulley and moves to the limit groove under the transmission of the transmission pulley. When the sensor senses the welding material 6, it sends a signal to the drive device of the cutter according to a certain interval time. The drive device of the cutter controls the cutter to cut. The cut welding material 6 will be sucked by the vacuum suction nozzle, and the robot arm will drive the vacuum suction nozzle to move to the welding position 221 during this process. The vacuum suction nozzle stops sucking after reaching the welding position 221, so that the welding material 6 is placed on the pre-treated electrode material 5 to wait for the welding assembly 22 to be processed.

[0108] In this embodiment, through the cooperation between the transmission part 2121, the limit part 2122, the vacuum part 2123 and the cutting part (not shown), on the one hand, the same-size cutting of the welding material 6 can be achieved to ensure that the size of the welding material 6 is compatible with the electrode material 5. On the other hand, the automatic loading of the welding material 6 can also be achieved to transfer the welding material 6 to the welding position 221 to ensure that the electrode material 5 and the welding material 6 are in the same welding position 221, which is convenient for the welding assembly 22 to realize laser processing of the electrode material 5 and the welding material 6.

[0109] The overall working principle of the electrode material conveying assembly and the welding material conveying assembly 212 is described below:

[0110] Example 1

[0111] The welding material conveying assembly 212 includes a transmission member 2121, a limiting member 2122, a vacuum member 2123 and a cutting member (not shown), wherein the transmission member 2121 includes a plurality of transmission pulleys, the limiting member 2122 includes a limiting groove provided on the mounting frame, the vacuum member 2123 is provided with two and respectively used for sucking the welding material 6 to two different welding positions 221, the vacuum member 2123 includes a mechanical arm installed on the mounting frame and a vacuum suction nozzle installed on the mechanical arm, and a vacuum suction device is connected to the outside of the vacuum suction nozzle, and the cutting member (not shown) includes a cutter and a sensor installed in the mounting frame, and the cutter is located above the limiting groove;

[0112] The planar material conveying component 211 includes a planar material conveying guide rail 2111, a clamping member 21121, a first rotating member 21122 and a first pushing member 21123. The clamping member 21121 is movably connected to the first rotating member 21122. The first pushing member 21123 is located at one side of the clamping member 21121. The clamping member 21121 is used to clamp the planar electrode material. The first rotating member 21122 is used to drive the clamping member 21121 to rotate. The first pushing member 21123 is used to push the clamping member 21121 located on the planar material conveying guide rail 2111. The clamping member 21121 is movably connected to the rotating member. The first pushing member 21123 is located at one side of the clamping member 21121. The clamping member 21121 is used to clamp the electrode material 5. The first rotating member 21122 is used to drive the clamping member 21121 to rotate. The first pushing member 21123 is used to push the electrode material 5 located on the planar material conveying guide rail 2111.

[0113] The curved material conveying component 21127 includes a curved material conveying guide rail 21128, a positioning member 21124, a second rotating member 21125 and a second pushing member 21126. The positioning member 21124 is fixedly connected to the second rotating member 21125. The second pushing member 21126 is located at one side of the second rotating member 21125. The positioning member 21124 is used to position and place the curved electrode material. The second rotating member 21125 is used to drive the positioning member 21124 to rotate. The second pushing member 21126 is used to push the curved electrode material located on the positioning member 21124.

[0114] The welding material conveying assembly 212, the flat material conveying component 211 and the curved material conveying component 21127 are all installed on the welding frame 3, and the flat material conveying component 211 and the curved material conveying component 21127 are both provided with welding positions 221;

[0115] The working principle of the welding material conveying assembly 212 is as follows: in the actual processing process, the welding material 6 is loaded through the transmission pulley and moves to the limit groove under the transmission of the transmission pulley. When the sensor senses the welding material 6, it sends a signal to the drive device of the cutter according to a certain interval time. The drive device of the cutter controls the cutter to cut. The cut welding material 6 will be sucked by the vacuum suction nozzle, and the robot arm will drive the vacuum suction nozzle to move to the welding position 221 during this process. The vacuum suction nozzle stops sucking after reaching the welding position 221, so that the welding material 6 is placed on the pre-treated electrode material 5 to wait for the welding assembly 22 to be processed. The two robot arms and the vacuum suction nozzles on the robot arms alternately suck the cut welding material 6 to the flat material conveying component 211 and the curved material conveying component 21127 in turn.

[0116] The corresponding working principles of the planar material conveying component 211 and the curved material conveying component 21127 have been specifically described above and will not be repeated here.

[0117] In one embodiment, the welding assembly 22 includes a laser base 222 and a laser welding head 223, the laser welding head 223 is installed on the laser base 222, the laser welding head 223 is located above the welding position 221, the welding frame 3 includes a welding base 31 and a mounting plate 32, and the transmission assembly is installed on the mounting plate 32.

[0118] In this embodiment, the welding base 31 can be installed with multiple driving devices for driving the conveying assembly on the one hand, and can be used to support the conveying assembly on the other hand, and integrate the welding mechanism 2 and the feeding mechanism 1, thereby reducing the space occupied by the equipment and increasing the space utilization rate.

[0119] In one embodiment, at least one welding position 221 is provided, and the number of the laser welding heads 223 is the same as the number of the welding positions 221 .

[0120] It should be noted that the welding assembly 22 also includes a blanking piece 7, which is used to blank the welded workpiece, and each welding position 221 is provided with a blanking piece 7 for blanking.

[0121] In this embodiment, the user can design the position and number of the welding positions 221 according to target requirements, and the number of laser welding heads 223 can be changed according to the number of welding positions 221. Such a design can increase the overall production efficiency of the present invention.

[0122] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An automatic laser welding device for silver fiber sheets of battery electrodes, characterized in that: The welding machine comprises a feeding mechanism and a welding mechanism, wherein the welding mechanism is installed on a processing table, the feeding mechanism comprises an electrode material feeding assembly and a welding material feeding assembly, the electrode material feeding assembly and the welding material feeding assembly are both connected to the welding mechanism, and the feeding mechanism is used to feed the electrode material and the welding material into the welding mechanism, and the welding mechanism comprises: A conveying assembly, the conveying assembly comprising an electrode material conveying assembly and a welding material conveying assembly, the electrode material conveying assembly is connected to the electrode material feeding assembly, and the welding material conveying assembly is connected to the welding material feeding assembly; The electrode material conveying assembly is used to receive and pre-process the electrode material from the electrode material feeding assembly, to adjust the feeding state of the electrode material that does not meet the processing requirements on the electrode material feeding assembly, and to convey the pre-processed electrode material to the welding position; The welding material conveying assembly is used to receive and pre-process the welding material from the welding material feeding assembly, so as to adjust the feeding state of the welding material that does not meet the processing requirements on the welding material feeding assembly, and convey the pre-processed welding material to the welding position; A welding assembly, used to complete laser welding between an electrode material and a welding material located at a welding position; a welding frame for supporting the conveyor assembly; The electrode material conveying assembly includes a curved material conveying component, a flat material conveying component, a combined guide rail, and an identification and distinguishing component. The combined guide rail includes a main guide rail, a first branch guide rail, and a second branch guide rail. The identification and distinguishing component is installed on the main guide rail. The curved material conveying component is connected to the first branch guide rail, and the flat material conveying component is connected to the second branch guide rail. The identification and distinguishing component is used to identify and distinguish curved electrode materials and flat electrode materials, so as to cooperate with the combined guide rail, and convey the curved electrode materials and flat electrode materials on the combined guide rail to the curved material conveying guide rail and the curved material conveying guide rail respectively through the first branch guide rail and the second branch guide rail. The conveying assembly is installed on the processing table through the welding frame, and the welding assembly is installed on the processing table.

2. The automatic laser welding device for silver fiber sheets of battery electrodes according to claim 1, characterized in that: The planar material conveying component includes a planar material conveying guide rail and a planar material transfer adjusting member. The planar material conveying guide rail is connected to the second branch guide rail. The planar material transfer adjusting member is arranged on the planar material conveying guide rail. A welding position is provided on the planar curved material conveying guide rail.

3. The automatic laser welding device for silver fiber sheets of battery electrodes according to claim 1, characterized in that: The bending material conveying component includes a bending material conveying guide rail and a bending material transfer adjusting member. The bending material conveying guide rail is connected to the first branch guide rail. The bending material transfer adjusting member is arranged on the bending material conveying guide rail. Another welding position is opened on the bending material conveying guide rail.

4. The automatic laser welding device for silver fiber sheets of battery electrodes according to claim 1, characterized in that: The identification and distinguishing component includes a visual camera, a distinguishing pusher and a visual processing module. The distinguishing pusher is installed on one side of the main rail, the visual camera is installed above the main rail, and the visual processing module is used to process the visual data obtained by the visual camera and control the working state of the distinguishing pusher according to the visual data.

5. The automatic laser welding device for silver fiber sheets of battery electrodes according to claim 1, characterized in that: The welding material conveying assembly includes a transmission part, a limiting part, a vacuum part and a cutting part. The transmission part is used to convey the welding material to the cutting part, the limiting part is used to limit the welding material, and the vacuum part is used to absorb the cut welding material to the welding position.

6. The automatic laser welding device for silver fiber sheets of battery electrodes as claimed in claim 2, characterized in that: The planar material transfer adjustment member includes a clamping member, a first rotating member and a first pushing member. The clamping member is movably connected to the first rotating member. The first pushing member is located on one side of the clamping member. The clamping member is used to clamp the planar electrode material. The first rotating member is used to drive the clamping member to rotate. The first pushing member is used to push the planar electrode material located on the planar material conveying guide rail.

7. The automatic laser welding device for silver fiber sheets of battery electrodes as claimed in claim 3, characterized in that: The bending material transfer adjustment member includes a positioning member, a second rotating member and a second pushing member, the positioning member is fixedly connected to the second rotating member, the second pushing member is located on one side of the second rotating member, the positioning member is used to position and place the bending electrode material, the rotating member is used to drive the positioning member to rotate, and the second pushing member is used to push the bending electrode material located on the positioning member.

8. The automatic laser welding device for silver fiber sheets of battery electrodes as claimed in claim 1, characterized in that: The welding assembly includes a laser base and a laser welding head, the laser welding head is installed on the laser base, the laser welding head is located above the welding position, the welding frame includes a welding base and a mounting plate, and the transmission assembly is installed on the mounting plate.

9. The automatic laser welding device for silver fiber sheets of battery electrodes as claimed in claim 8, characterized in that: At least one welding position is provided, and the number of the laser welding heads is the same as the number of the welding positions.

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