CN115971754A - Cell inverted welding method - Google Patents
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- CN115971754A CN115971754A CN202211489704.0A CN202211489704A CN115971754A CN 115971754 A CN115971754 A CN 115971754A CN 202211489704 A CN202211489704 A CN 202211489704A CN 115971754 A CN115971754 A CN 115971754A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The application provides a battery cell inverted welding method. The battery cell inverted welding method adopts the battery cell inverted welding equipment to weld the battery to be welded, the battery to be welded comprises a steel shell and a battery cell, the battery cell is accommodated in the steel shell, and a positive tab of the battery cell extends out of the steel shell; the battery cell inverted welding equipment comprises a manipulator, a fixing mechanism, a cover conveying mechanism and a welding mechanism, wherein the manipulator, the cover conveying mechanism and the welding mechanism are arranged adjacent to the fixing mechanism; the battery cell inverted welding method comprises the following steps: inverting and moving the battery to be welded onto the fixing mechanism through the manipulator so as to fix the battery to be welded onto the fixing mechanism and enable the direction of the free end of the positive lug of the battery cell to be consistent with the gravity direction; conveying the cap to a position in contact with the positive tab through a cap conveying mechanism; and welding the cap on the positive lug through a welding mechanism. So, restrained welding piece and electric core contact, and then improved the performance of cylinder battery.
Description
Technical Field
The invention relates to the technical field of cylindrical batteries, in particular to an inverted welding method for a battery core.
Background
A typical cylindrical battery includes a cylindrical steel can, a battery cell and a cap, wherein the battery cell is accommodated in the steel can, and the cap is welded to a positive tab of the battery cell. In the conventional technology, for example, in the invention patent with publication number CN106425079B, when the cap is welded to the positive tab, the opening of the cylindrical steel can faces upward, and under the action of gravity, welding debris generated by welding easily falls into the cylindrical steel can and contacts with the battery core, so that the performance of the cylindrical battery is poor.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides the cell inverted welding method which can avoid the contact of welding scraps and a cell under the action of gravity and improve the performance of a cylindrical battery.
The purpose of the invention is realized by the following technical scheme:
a cell inverted welding method is characterized in that cell inverted welding equipment is adopted for welding a cell to be welded, the cell to be welded comprises a steel shell and a cell, the cell is accommodated in the steel shell, and a positive lug of the cell extends out of the steel shell; the battery cell inverted welding equipment comprises a manipulator, a fixing mechanism, a cover feeding mechanism and a welding mechanism, wherein the manipulator, the cover feeding mechanism and the welding mechanism are arranged adjacent to the fixing mechanism;
the battery cell inverted welding method comprises the following steps:
inverting and moving the battery to be welded to the fixing mechanism through the manipulator so as to fix the battery to be welded to the fixing mechanism and enable the direction of the free end of the positive lug of the battery cell to be consistent with the direction of gravity;
conveying the cap to a position in contact with the positive lug through the cap conveying mechanism;
and the welding mechanism is used for welding the cap on the positive lug.
In one embodiment, the battery cell inverted welding device further comprises a positioning mechanism, and the positioning mechanism is positioned at the lower side of the fixing mechanism;
after the step of inverting and moving the battery to be welded onto the fixing mechanism by the robot hand and before the step of conveying the cap to the position of contact with the positive electrode tab by the cap conveying mechanism, the battery cell inverted welding method further includes: extending the power output end of the positioning mechanism to one side of the positive lug departing from the power output end of the cover feeding mechanism;
and in the step of conveying the cap to the position contacted with the positive lug through the cap conveying mechanism, the power output end of the positioning mechanism, the positive lug, the cap and the power output end of the cap conveying mechanism are sequentially abutted.
In one embodiment, the positioning mechanism comprises a positioning driving element and a positioning block, the positioning block is connected to the power output end of the positioning driving element, the positioning block is located on the lower side of the fixing mechanism, and the positioning block, the positive lug, the cap and the power output end of the cap feeding mechanism are sequentially abutted.
In one embodiment, the positioning block is formed with a welding window disposed opposite the portion of the positive tab, the welding window also being disposed opposite the laser emitting end of the welding mechanism.
In one embodiment, the cover feeding mechanism comprises a vibration feeding device and a cover pushing device which are arranged adjacently, and the vibration feeding device and the cover pushing device are both arranged adjacently to the fixing mechanism;
conveying the cap to a position in contact with the positive tab through the cap conveying mechanism, wherein the cap conveying mechanism comprises:
conveying the cap to a position opposite to the positive lug through the vibration feeding device;
the cap is pushed by the cap pushing device to be in contact with the positive tab.
In one embodiment, in the step of pushing the cap to contact with the positive tab by the cap pushing device, the cap is sleeved on a power output end of the cap pushing device.
In one embodiment, the vibration feeding device comprises a vibration disc and a conveying track, the input end of the conveying track is connected with the output end of the vibration disc, the output end of the conveying track is provided with a discharge hole, and the power output end of the cover pushing device is movably arranged in the discharge hole in a penetrating mode.
In one embodiment, the battery core inverted welding equipment further comprises a rotating mechanism, the fixing mechanism comprises a plurality of fixing jigs for fixing the batteries to be welded, each fixing jig is fixedly connected to the rotating mechanism, the plurality of fixing jigs are arranged at intervals along the circumferential direction of the rotating mechanism, and the rotating mechanism is used for rotating the plurality of fixing jigs to the welding station one by one.
In one embodiment, after the step of inverting and moving the battery to be welded onto the fixing mechanism by the manipulator and before the step of conveying the cap to the position in contact with the positive electrode tab by the cap conveying mechanism, the battery cell inverted welding method further includes: and rotating one of the fixed jigs to a welding station through the rotating mechanism.
In one embodiment, in the step of inverting and moving the batteries to be welded onto the fixing mechanism by the robot arm, the plurality of batteries to be welded are inverted one by one and moved onto the plurality of fixing jigs by the robot arm.
Compared with the prior art, the invention has at least the following advantages:
because the battery to be welded is inverted and moved to the fixing mechanism through the manipulator, the direction of the free end of the anode lug of the battery cell is consistent with the gravity direction, namely the opening direction of the steel shell is consistent with the gravity direction; the cap is conveyed to the position contacted with the positive lug through the cap conveying mechanism, so that the cap can be welded on the positive lug by the welding mechanism; when welding mechanism welded positive ear and block, because the direction of the free end of positive ear is unanimous with the direction of gravity, the opening direction of box hat is unanimous promptly, has avoided the welding piece to drop to the box hat inside and with electric core contact because of the action of gravity, has restrained welding piece and electric core contact, and then has improved the performance of cylinder battery.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a flowchart illustrating steps of an inverted cell welding method according to an embodiment;
fig. 2 is a schematic structural diagram of a battery cell inverted welding device according to an embodiment;
fig. 3 is a partially enlarged view of the battery cell inverted welding device shown in fig. 2 at a;
fig. 4 is another schematic structural diagram of the battery cell inverted welding device shown in fig. 2;
fig. 5 is a partial enlarged view of the battery cell inverted welding equipment shown in fig. 4 at a position B;
fig. 6 is a schematic view of another structure of the battery cell inverted welding device shown in fig. 2;
fig. 7 is a partially enlarged view of the cell inverted welding device shown in fig. 6 at C;
fig. 8 is a partial structural schematic diagram of the battery cell inverted welding equipment shown in fig. 2.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The application provides a battery cell inverted welding method. In one embodiment, the battery cell inverted welding equipment is used for welding a battery to be welded, the battery to be welded comprises a steel shell and a battery cell, the battery cell is accommodated in the steel shell, and a positive lug of the battery cell extends out of the steel shell; the battery cell inverted welding equipment comprises a manipulator, a fixing mechanism, a cover conveying mechanism and a welding mechanism, wherein the manipulator, the cover conveying mechanism and the welding mechanism are arranged adjacent to the fixing mechanism; the battery cell inverted welding method comprises the following steps: inverting and moving the battery to be welded onto the fixing mechanism through the manipulator so as to fix the battery to be welded onto the fixing mechanism and enable the direction of the free end of the positive lug of the battery cell to be consistent with the gravity direction; conveying the cap to a position in contact with the positive tab through a cap conveying mechanism; and welding the cap on the positive lug through a welding mechanism.
According to the inverted welding method for the battery core, the battery to be welded is inverted and moved to the fixing mechanism through the manipulator, so that the direction of the free end of the positive lug of the battery core is consistent with the gravity direction, namely the opening direction of the steel shell is consistent with the gravity direction; the cap is conveyed to the position contacted with the positive lug through the cap conveying mechanism, so that the cap can be welded on the positive lug by the welding mechanism; when welding mechanism welded positive tab and block, because the direction of the free end of positive tab is unanimous with the direction of gravity, the opening direction of box hat is unanimous with the direction of gravity promptly, has avoided the welding piece to drop to the box hat inside and contact with electric core because of the action of gravity, has restrained welding piece and electric core contact, and then has improved the performance of cylinder battery.
In order to better understand the technical scheme and the beneficial effects of the present application, the following detailed description is made in conjunction with specific embodiments:
as shown in fig. 1 to 8, the cell inverted welding method of an embodiment includes the following steps:
s100: the battery 20 to be welded is inverted and moved onto the fixing mechanism 100 by the robot arm so that the battery 20 to be welded is fixed onto the fixing mechanism 100 and the free end of the positive tab 610 of the battery cell 600 is directed in accordance with the direction of gravity.
In the present embodiment, the battery 20 to be welded includes a steel case 500 and a battery cell 600, where the battery cell 600 is accommodated in the steel case 500, and a positive tab of the battery cell 600 extends out of the steel case 500. The manipulator has the functions of clamping and moving, and the fixing mechanism 100 has a fixing position matched with the shape of the battery 20, so that the fixing mechanism 100 can be used for fixing the battery cell 600. The battery 20 to be welded is clamped by a manipulator, the battery 20 to be welded is then inverted, so that the direction of the free end of the positive lug 610 of the battery cell 600 is consistent with the gravity direction, namely the opening of the steel shell 500 faces downwards, the battery 20 to be welded is then placed on the fixing mechanism 100, namely the battery 20 to be welded is placed on the fixing mechanism 100 in an inverted mode, welding scraps in subsequent steps are prevented from entering the steel shell 500, the welding scraps are prevented from contacting the battery cell 600 in the steel shell 500, and the performance of the battery 20 is prevented from being reduced by the welding scraps. It will be appreciated that in this embodiment, the free ends of the positive lugs 610 point parallel to the axial direction of the steel can 500.
S300: the cap 700 is delivered to a position in contact with the positive tab 610 by the cap delivery mechanism 200.
In the present embodiment, the cap feeding mechanism 200 conveys the cap 700 to the welding station, i.e., the position corresponding to the positive tab 610, so that the cap 700 is in contact with the positive tab 610, so that the cap 700 can be welded to the positive tab 610.
S500: the cap 700 is welded to the positive tab 610 by the welding mechanism 300.
In the present embodiment, the welding mechanism 300 irradiates laser to the portion where the positive electrode tab 610 contacts the cap 700, so that the positive electrode tab 610 and the cap 700 are bonded together after being heated, and the cap 700 is welded to the positive electrode tab 610.
In the above-mentioned inverted welding method for a battery cell, since the battery 20 to be welded is inverted and moved onto the fixing mechanism 100 by the manipulator, the direction of the free end of the positive tab 610 of the battery cell 600 is consistent with the direction of gravity, that is, the opening direction of the steel can 500 is consistent with the direction of gravity; the cap 700 is conveyed to the position where the cap 700 is contacted with the positive tab 610 through the cap conveying mechanism 200, so that the welding mechanism 300 can weld the cap 700 to the positive tab 610; when the welding mechanism 300 welds the positive tab 610 and the cap 700, since the direction of the free end of the positive tab 610 is consistent with the direction of gravity, that is, the opening direction of the steel can 500 is consistent with the direction of gravity, the welding debris is prevented from falling into the steel can 500 due to the action of gravity and contacting with the battery cell 600, the contact between the welding debris and the battery cell 600 is inhibited, and the performance of the cylindrical battery 20 is improved.
As shown in fig. 2 to 5, in one embodiment, the cell inverted welding apparatus 10 is used to weld the battery 20 to be welded, where the battery 20 to be welded includes a steel case 500 and a cell 600, the cell 600 is accommodated in the steel case 500, and a positive tab 610 of the cell 600 protrudes out of the steel case 500; the battery cell inverted welding device 10 comprises a manipulator, a fixing mechanism 100, a cover feeding mechanism 200 and a welding mechanism 300, wherein the manipulator, the cover feeding mechanism 200 and the welding mechanism 300 are all arranged adjacent to the fixing mechanism 100. In the present embodiment, the battery 20 to be welded is inverted and moved to the fixing mechanism 100 by the robot, so that the free end of the positive tab 610 of the battery cell 600 points in the same direction as the direction of gravity, that is, the opening direction of the steel can 500 is in the same direction as the direction of gravity, the cap 700 is conveyed to the position contacting the positive tab 610 by the cap conveying mechanism 200, the cap 700 can be welded to the positive tab 610 by the welding mechanism 300, the cap 700 is welded to the positive tab 610 by the welding mechanism 300, and the automatic welding of the cap 700 and the positive tab 610 is realized.
It is understood that the positive electrode tab 610 has a certain flexibility, and the positive electrode tab 610 bends after being impacted, so that, as shown in fig. 2 to 5, in one embodiment, the battery cell inverted welding apparatus 10 further includes a positioning mechanism 400, the positioning mechanism 400 is located at the lower side of the fixing mechanism 100, and the positioning mechanism 400 is used for positioning the positive electrode tab 610. Further, after the step of inverting and moving the battery 20 to be welded onto the fixing mechanism 100 by the robot hand, and before the step of conveying the cap 700 to the position of contact with the positive electrode tab 610 by the cap conveying mechanism 200, the cell inverted welding method further includes: the power output end of the positioning mechanism 400 is extended to the side of the positive tab 610 departing from the power output end of the cap feeding mechanism 200. In this embodiment, when the power output end of the positioning mechanism 400 extends to a corresponding position, the positive tab 610 is disposed opposite to the power output end of the positioning mechanism 400.
Further, in the step of conveying the cap 700 to the position of contact with the positive tab 610 by the cap feeding mechanism 200, the power output end of the positioning mechanism 400, the positive tab 610, the cap 700, and the power output end of the cap feeding mechanism 200 are also brought into abutment in this order. In this embodiment, the cap feeding mechanism 200 pushes the cap 700, so that the power output end of the positioning mechanism 400, the positive tab 610, the cap 700 and the power output end of the cap feeding mechanism 200 are sequentially abutted, and the positive tab 610 is positioned on the positioning mechanism 400, thereby preventing the positive tab 610 from being bent during welding.
As shown in fig. 3 and 4, in one embodiment, the positioning mechanism 400 includes a positioning driving member 410 and a positioning block 420, the positioning block 420 is connected to the power output end of the positioning driving member 410, the positioning block 420 is located at the lower side of the fixing mechanism 100, and the positioning block 420, the positive tab 610, the cap 700 and the power output end of the lid feeding mechanism 200 are abutted in sequence. In this embodiment, the positioning driving member 410 drives the positioning block 420 to be disposed opposite to the positive tab 610, and after the lid feeding mechanism 200 moves the lid cap 700 to a predetermined position, the positioning block 420, the positive tab 610, the lid cap 700 and the power output end of the lid feeding mechanism 200 are sequentially abutted.
As shown in fig. 3, in one embodiment, the positioning block 420 is formed with a welding window 421, the welding window 421 is disposed opposite to a portion of the positive tab 610, and the welding window 421 is also disposed opposite to the laser emitting end of the welding mechanism 300. In the present embodiment, two sides of the welding window 421 are respectively disposed opposite to the positive tab 610 and the laser emitting end, and when the welding mechanism 300 is activated, the laser of the laser emitting end passes through the welding window 421 and acts on the positive tab 610, so that the positive tab 610 is welded to the cap 700.
As shown in fig. 6 and 7, in one embodiment, the cap feeding mechanism 200 includes a vibration feeding device 210 and a cap pushing device 220, which are disposed adjacent to each other, and the vibration feeding device 210 and the cap pushing device 220 are disposed adjacent to the fixing mechanism 100. Further, the step of conveying the cap 700 to the position contacting the positive tab 610 by the cap conveying mechanism 200 includes: conveying the cap 700 to a position opposite to the positive tab 610 by the vibration feeding device 210; the cap 700 is pushed into contact with the positive tab 610 by the cap pushing device 220. In the present embodiment, the motion path of the output end of the cap pushing device 220 is a linear motion, and the cap 700 is pushed by the power output end of the cap pushing device 220, so that the cap 700 is in contact with the positive tab 610.
As shown in fig. 7, in one embodiment, in the step of pushing the cap 700 to contact the positive tab 610 by the cap pushing device 220, the cap 700 is sleeved on the power output end of the cap pushing device 220. In the present embodiment, the cap 700 to be welded is sleeved on the power output end of the cap pushing device 220, so as to avoid the cap 700 to be welded from falling off during the pushing process of the cap pushing device 220, so as to ensure that the cap 700 to be welded is in contact with and welded to the positive tab 610 to be welded.
As shown in fig. 6 and 7, in one embodiment, the vibration feeding device 210 includes a vibration disk 211 and a conveying rail 212, an input end of the conveying rail 212 is connected to an output end of the vibration disk 211, an output end of the conveying rail 212 is formed with a discharge hole 2121, and a power output end of the cap pushing device 220 is movably disposed through the discharge hole 2121, so that the power output end of the cap pushing device 220 can be used for pushing the cap 700 to be welded. In the present embodiment, the vibrating disk 211 vibrates the cap 700 to be welded to the discharging hole 2121 of the conveying rail 212, and the power output end of the cap pushing device 220 pushes the cap 700 to be welded in the discharging hole 2121 to push the cap 700 to be welded to a position contacting with the positive tab 610 to be welded.
As shown in fig. 8, in one embodiment, the battery cell inverted welding apparatus 10 further includes a rotating mechanism 800, the fixing mechanism 100 includes a plurality of fixing jigs 110 for fixing the battery 20 to be welded, each fixing jig 110 is fixedly connected to the rotating mechanism 800, the fixing jigs 110 are arranged at intervals along the circumferential direction of the rotating mechanism 800, and the rotating mechanism 800 is configured to rotate the fixing jigs 110 to the welding station one by one, so as to improve the efficiency of conveying the battery 20 to be welded.
In one embodiment, after the step of inverting and moving the battery 20 to be welded onto the fixing mechanism 100 by the robot arm and before the step of conveying the cap 700 to the position in contact with the positive tab 610 by the cap conveying mechanism 200, the cell inverted welding method further includes: one of the fixed jigs 110 is rotated to the welding station by the rotating mechanism 800, so that the output port of the cover feeding mechanism 200 is arranged opposite to the positive tab 610 of the battery 20 to be welded on one of the fixed jigs 110.
In one embodiment, in the step of inverting and moving the batteries to be welded 20 onto the fixing mechanism 100 by the robot arm, the plurality of batteries to be welded 20 are inverted one by one and moved onto the plurality of fixing jigs 110 by the robot arm, so that the plurality of batteries to be welded 20 are fixed onto the fixing mechanism 100. In this embodiment, when the rotating mechanism 800 rotates, since the fixing mechanism 100 is fixed with a plurality of to-be-welded batteries 20, the to-be-welded batteries 20 enter the welding station one by one to be welded, so that the transmission efficiency of the to-be-welded batteries 20 is improved, and further the welding efficiency is improved.
It is understood that, since the spattering direction of the welding debris is uncertain, even if the battery cell 600 is placed upside down on the fixing mechanism 100, the welding debris may still spatter into the inside of the steel can 500 and come into contact with the battery cell 600. And welding debris is easy to adhere to the positive tab 610, and after the cap 700 is closed, the welding debris on the positive tab 610 will contact with the battery cell 600, thereby reducing the performance of the battery 20.
In order to further inhibit the welding debris from entering the interior of the steel shell 500, in one embodiment, the battery cell inverted welding apparatus 10 further includes a debris suction mechanism, the debris suction mechanism is disposed adjacent to the welding station, the debris suction mechanism is used for sucking the welding debris generated by welding, and a suction end of the debris suction mechanism is disposed opposite to an opening of the steel shell 500. In this embodiment, the welding debris is also absorbed by a chip absorbing mechanism while the cap 700 is welded to the positive tab 610, and a suction end of the chip absorbing mechanism is disposed opposite to the opening of the steel can 500. Therefore, the scrap suction mechanism absorbs welding scraps during welding, so that the contact between the welding scraps and the battery cell 600 is inhibited, and the performance of the electric wire is improved.
Further, in the step of welding the cap 700 on the positive tab 610 by the welding mechanism 300, the welding debris is sucked away from the battery cell 600 by a debris sucking mechanism, and a suction end of the debris sucking mechanism is disposed opposite to the opening of the steel can 500. In this embodiment, the welding debris is also absorbed by a debris absorbing mechanism while the cap 700 is welded to the positive tab 610, and a debris absorbing end of the debris absorbing mechanism is disposed opposite to the opening of the steel can 500. Therefore, the scrap suction mechanism absorbs welding scraps during welding, so that the contact between the welding scraps and the battery cell 600 is inhibited, and the performance of the electric wire is improved.
In one embodiment, the chip suction mechanism includes a rotary driving mechanism and a suction pump, the suction pump is installed at a power output end of the rotary driving mechanism, a suction end of the suction pump is arranged opposite to the opening of the steel shell 500, and the rotary driving mechanism is used for driving the suction pump to rotate around the opening of the steel shell 500. In order to enable the suction mechanism to absorb the welding debris in all directions, in an embodiment, the rotary driving mechanism drives the suction pump to rotate around the opening of the steel shell 500, so that the suction pump absorbs the welding debris in all directions of the battery cell 600, thereby improving the debris suction effect of the debris suction mechanism and further improving the performance of the battery 20.
Further, after the step of welding the cap 700 to the positive tab 610 by the welding mechanism 300 and sucking the welding debris away from the cell 600 by the debris sucking mechanism, the cell inverted welding method further includes: the getter pump is driven to rotate around the opening of the steel can 500 by a rotary drive mechanism. It can be understood that positioning mechanism 400 and positive ear 610 contact, this can lead to the potential mechanism to shelter from partial welding piece, consequently, in this embodiment, rotate through rotary drive mechanism drive aspirator pump, the rotation center of aspirator pump is the opening central point of box hat 500 to make electric core 600 of electric core 600 all directions can both be adsorbed by the aspirator pump, improved the bits effect of inhaling bits mechanism, and then improved battery 20's performance.
It will be appreciated that when debris in the steel can 500 is blocked, such as by the positive tab 610, the debris-suction mechanism is less likely to suck away welding debris. In order to solve the above problem, in one embodiment, the battery cell inverted welding apparatus 10 further includes a vibration mechanism, a vibration end of the vibration mechanism is connected to the fixing mechanism 100, and the vibration mechanism is used for vibrating the fixing mechanism 100. In the present embodiment, after the welding mechanism 300 completes welding, the vibration mechanism vibrates to vibrate the fixing mechanism 100, so that the battery cell 600 vibrates and vibrates the welding debris in the steel can 500 out of the outside.
Further, after the step of welding the cap 700 to the positive electrode tab 610 by the welding mechanism 300, the cell inverted welding method further includes: the battery cell 600 is vibrated by the vibration mechanism to drop the debris inside the steel can 500. In this embodiment, the battery cell 600 is vibrated by the vibration mechanism, so that the welding debris inside the steel shell 500 is vibrated, and the welding debris inside the steel shell 500 falls out from the opening under the action of vibration and gravity because the opening of the steel shell 500 faces downward, thereby avoiding the problem of contact between the welding debris and the battery cell 600, and improving the performance of the battery 20.
Compared with the prior art, the invention has at least the following advantages:
in the above-mentioned inverted cell welding method, since the battery 20 to be welded is inverted and moved onto the fixing mechanism 100 by the manipulator, the direction of the free end of the positive tab 610 of the cell 600 is consistent with the direction of gravity, that is, the opening direction of the steel can 500 is consistent with the direction of gravity; the cap 700 is conveyed to the position where the cap 700 is contacted with the positive tab 610 through the cap conveying mechanism 200, so that the welding mechanism 300 can weld the cap 700 to the positive tab 610; when the welding mechanism 300 welds the positive tab 610 and the cap 700, because the direction of the free end of the positive tab 610 is consistent with the direction of gravity, that is, the opening direction of the steel shell 500 is consistent with the direction of gravity, sparks generated during welding cannot splash into the steel shell 500 and contact with the battery cell 600, so that contact between welding debris and the battery cell 600 is inhibited, and performance of the cylindrical battery 20 is improved.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A cell inverted welding method is characterized in that cell inverted welding equipment is adopted for welding a cell to be welded, the cell to be welded comprises a steel shell and a cell, the cell is accommodated in the steel shell, and a positive lug of the cell extends out of the steel shell; the electric core inverted welding equipment is characterized by comprising a manipulator, a fixing mechanism, a cover feeding mechanism and a welding mechanism, wherein the manipulator, the cover feeding mechanism and the welding mechanism are arranged adjacent to the fixing mechanism;
the battery core inverted welding method comprises the following steps:
inverting and moving the battery to be welded to the fixing mechanism through the manipulator so as to fix the battery to be welded to the fixing mechanism and enable the direction of the free end of the positive lug of the battery cell to be consistent with the gravity direction;
conveying the cap to a position in contact with the positive tab through the cap conveying mechanism;
and welding the cover cap on the positive lug through the welding mechanism.
2. The battery cell inverted welding method of claim 1, wherein the battery cell inverted welding device further comprises a positioning mechanism, and the positioning mechanism is located on the lower side of the fixing mechanism;
after the step of inverting and moving the battery to be welded onto the fixing mechanism by the robot arm and before the step of conveying the cap to the position of contact with the positive electrode tab by the cap conveying mechanism, the cell inverted welding method further includes: extending the power output end of the positioning mechanism to one side of the positive lug departing from the power output end of the cover feeding mechanism;
and in the step of conveying the cover cap to the position contacted with the positive lug through the cover conveying mechanism, the power output end of the positioning mechanism, the positive lug, the cover cap and the power output end of the cover conveying mechanism are sequentially abutted.
3. The battery cell inverted welding method according to claim 2, wherein the positioning mechanism comprises a positioning driving piece and a positioning block, the positioning block is connected to the power output end of the positioning driving piece and located on the lower side of the fixing mechanism, and the positioning block, the positive lug, the cap and the power output end of the cap feeding mechanism are sequentially abutted.
4. The battery cell inverted welding method according to claim 3, wherein the positioning block is formed with a welding window, the welding window is arranged opposite to the portion of the positive tab, and the welding window is also arranged opposite to a laser emission end of the welding mechanism.
5. The battery cell inverted welding method according to claim 1, wherein the cover feeding mechanism comprises a vibration feeding device and a cover pushing device which are arranged adjacently, and the vibration feeding device and the cover pushing device are both arranged adjacently to the fixing mechanism;
conveying the cap to a position in contact with the positive tab through the cap conveying mechanism, wherein the cap conveying mechanism comprises:
conveying the cap to a position opposite to the positive lug through the vibration feeding device;
the cap is pushed to be in contact with the positive lug through the cap pushing device.
6. The battery cell inverted welding method according to claim 5, wherein in the step of pushing the cap to contact with the positive tab through the cap pushing device, the cap is sleeved on a power output end of the cap pushing device.
7. The battery cell inverted welding method according to claim 5, wherein the vibration feeding device comprises a vibration disc and a conveying rail, an input end of the conveying rail is connected with an output end of the vibration disc, a discharge hole is formed in an output end of the conveying rail, and a power output end of the cover pushing device is movably arranged in the discharge hole in a penetrating mode.
8. The battery core inverted welding method according to claim 1, wherein the battery core inverted welding device further comprises a rotating mechanism, the fixing mechanism comprises a plurality of fixing jigs for fixing a battery to be welded, each fixing jig is fixedly connected to the rotating mechanism, the plurality of fixing jigs are arranged at intervals in the circumferential direction of the rotating mechanism, and the rotating mechanism is used for rotating the plurality of fixing jigs to the welding station one by one.
9. The electric core inverted welding method according to claim 8, characterized in that after the step of inverting and moving the battery to be welded onto the fixing mechanism by the manipulator and before the step of conveying the cap to the position of contact with the positive tab by the cap conveying mechanism, the electric core inverted welding method further comprises: and rotating one of the fixed jigs to a welding station through the rotating mechanism.
10. The battery cell inverted welding method according to claim 9, wherein in the step of inverting and moving the batteries to be welded to the fixing mechanism by the manipulator, the plurality of batteries to be welded are inverted one by one and moved to the plurality of fixing jigs by the manipulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211489704.0A CN115971754A (en) | 2022-11-25 | 2022-11-25 | Cell inverted welding method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211489704.0A CN115971754A (en) | 2022-11-25 | 2022-11-25 | Cell inverted welding method |
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| CN115971754A true CN115971754A (en) | 2023-04-18 |
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| CN202211489704.0A Pending CN115971754A (en) | 2022-11-25 | 2022-11-25 | Cell inverted welding method |
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| CN (1) | CN115971754A (en) |
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