Laser cutting device for battery pole piece

Abstract

The invention relates to a laser cutting device for a battery pole piece. The laser cutting device for the battery pole piece comprises a mounting frame; the guide mechanism is arranged on the mounting frame, and the guide mechanism is used for guiding the pole piece when the pole piece is conveyed; the laser generator is arranged on the mounting frame, and the laser generator can emit laser towards the pole piece; and the magnetic part is arranged on the mounting frame, the magnetic part can generate a magnetic field on a conveying path of the pole piece, and when the pole piece is cut by laser and shakes, magnetic induction lines of the magnetic field can be cut. According to the scheme provided by the invention, the pole piece can be prevented from being abraded when the shaking of the pole piece is inhibited.

Description

Technical Field

[0001] The present application relates to the field of battery processing technology, and in particular to a laser cutting device for battery pole pieces. Background Art

[0002] During the processing of the battery cell, the pole piece needs to be laser cut. When the pole piece is fed, it is transported by the feeding roller and the vacuum roller. During the transportation process, the laser generator is used to emit laser to cut the position of the pole piece to be cut to form the pole ear. However, the pole piece will shake during laser cutting, which will affect the cutting position accuracy and cutting effect.

[0003] like Figure 1 As shown, in the related art, the laser cutting device of the battery pole piece has a laser generator 1 and a guide block 3 arranged on one side of the pole piece 2, and a plurality of suction holes 4 are opened on the guide block 3. When the laser generator 1 cuts the pole piece 2, suction is performed by applying negative pressure to the suction hole 4, so that the guide block 3 can adsorb the pole piece 2, thereby limiting the position of the pole piece 2 and further suppressing the shaking of the pole piece 2.

[0004] However, the solutions in the related art may cause friction between the pole piece and the guide block, which may easily lead to wear of the pole piece. Summary of the invention

[0005] In order to solve or partially solve the problems existing in the related art, the present application provides a laser cutting device for battery pole pieces, which can prevent the pole pieces from being worn while suppressing the pole piece vibration.

[0006] The present application provides a laser cutting device for a battery pole piece, comprising: a mounting frame; a guide mechanism, arranged on the mounting frame, the guide mechanism being used to guide the pole piece when the pole piece is being transported; a laser generator, arranged on the mounting frame, the laser generator being capable of emitting a laser toward the pole piece; and a magnetic member, arranged on the mounting frame, the magnetic member being capable of generating a magnetic field on a transport path of the pole piece, and being capable of cutting the magnetic flux lines of the magnetic field when the pole piece is shaken by laser cutting.

[0007] Furthermore, the angle between the direction of the magnetic field generated by the magnetic member and the surface of the pole piece is defined as a, 0°≤a<90° or 90°<a≤180°.

[0008] Furthermore, the guide mechanism, the laser generator and the magnetic member are arranged in sequence along the conveying path of the pole piece.

[0009] Furthermore, the laser cutting device for the battery pole piece further comprises an air suction member, an air blowing member and a limit assembly arranged on the mounting frame, the limit assembly is provided with an air suction channel and an air blowing channel, the air suction member is communicated with the air suction channel, the air blowing member is communicated with the air blowing channel, the air suction channel has an air suction port, the air blowing channel has an air blowing port, the air suction port and the air blowing port are both arranged on a side of the limit assembly facing the pole piece; The air suction member is used to suck air into the air suction channel so that the air suction port has an adsorption force on the pole piece; The blowing member is used to supply air to the blowing channel so that the blowing port blows air toward the pole piece.

[0010] Furthermore, there are multiple air suction ports and multiple air blowing ports, and the multiple air suction ports and the multiple air blowing ports are respectively arranged at intervals along the conveying direction of the electrode piece.

[0011] Furthermore, there is at least one blowing port between two adjacent suction ports; and / or There is at least one air suction port between two adjacent air blowing ports.

[0012] Further, the limit assembly includes a box body and a cover body provided on the side of the box body away from the pole piece, the cover body has an inner cavity, the box body is provided with a connecting cavity and a uniform cavity connected to the connecting cavity, the air suction port and the air blowing port are both provided on the box body, the air suction port is connected to the inner cavity of the cover body, and the air blowing port is connected to the uniform cavity; The air suction member is in communication with the inner cavity of the cover body, and the air suction channel includes the inner cavity of the cover body and the air suction port; The blowing member is in communication with the connecting cavity, and the blowing channel comprises the connecting cavity, the uniformly distributed cavity and the blowing port.

[0013] Furthermore, there are a plurality of uniformly distributed cavities, each of which is connected to the connecting cavity, each of which is provided with the blowing port, and the plurality of uniformly distributed cavities are arranged along the conveying direction of the electrode piece; There are multiple air suction ports, and the multiple air suction ports are arranged along the conveying direction of the electrode piece.

[0014] Furthermore, the air suction port passes through the box body, and air inlet grooves connected to the air suction port are provided on both sides of the air suction port, and the air inlet grooves extend from the side of the box body to the air suction port.

[0015] Furthermore, the air flow rate of the air suction member sucking air into the air suction channel is greater than the air flow rate of the air blowing member blowing air into the air blowing channel.

[0016] The technical solution provided by the present application may include the following beneficial effects: guiding the pole piece in transit through a guiding mechanism on the mounting frame, cutting the pole piece through a laser generator, and when the pole piece is shaken by the laser cutting, under the action of the magnetic field generated by the magnetic part, the shaking pole piece can cut the magnetic flux lines of the magnetic field and generate eddy currents inside the pole piece, and the eddy currents can make the pole piece heat up, so that the energy of the shake can be consumed by making the pole piece heat up, and then a non-contact method is used to reduce the shake of the pole piece, thereby preventing the pole piece from being worn while suppressing the shake of the pole piece.

[0017] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other objects, features and advantages of the present application will become more apparent by describing in more detail exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0019] Figure 1 It is a structural schematic diagram of a laser cutting device for a battery pole piece shown in the related art; Figure 2 It is a schematic structural diagram of a laser cutting device for a battery pole piece shown in an embodiment of the present application; Figure 3 is an exploded view of a laser cutting device for a battery pole piece shown in an embodiment of the present application; Figure 4 is a side view of a laser cutting device for a battery pole piece shown in an embodiment of the present application; Figure 5 yes Figure 4 Section view along section line AA; Figure 6 It is a front view of a laser cutting device for a battery pole piece shown in an embodiment of the present application; Figure 7 yes Figure 6 Section view along section line BB.

[0020] Reference numerals: 1-laser generator, 2-pole piece, 3-guide block, 4-suction hole; 10-mounting frame, 20-guiding mechanism, 21-guide roller, 30-laser generator, 40-magnetic part, 50-limiting assembly, 51-box body, 511-air inlet, 512-air outlet, 513-connecting cavity, 514-uniformly distributed cavity, 515-air inlet slot, 516-connecting hole, 517-main air inlet pipe, 518-main air outlet pipe, 52-cover body, 521-inner cavity. DETAILED DESCRIPTION

[0021] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0022] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0023] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0024] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, or a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0025] The technical solution of the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0026] Figure 2 It is a schematic structural diagram of a laser cutting device for a battery pole piece shown in an embodiment of the present application; Figure 3 is an exploded view of a laser cutting device for a battery pole piece shown in an embodiment of the present application; Figure 4 is a side view of a laser cutting device for a battery pole piece shown in an embodiment of the present application; Figure 5 yes Figure 4 Section view along section line AA; Figure 6 It is a front view of a laser cutting device for a battery pole piece shown in an embodiment of the present application; Figure 7 yes Figure 6 Section view along section line BB.

[0027] like Figures 2 to 7 As shown, an embodiment of the present application provides a laser cutting device for a battery pole piece, including a mounting frame 10, a guide mechanism 20, a laser generator 30 and a magnetic member 40, wherein the guide mechanism 20, the laser generator 30 and the magnetic member 40 are all arranged on the mounting frame 10.

[0028] The guide mechanism 20 is used to guide the pole piece when it is being transported, wherein the guide mechanism 20 may include two guide rollers 21 arranged opposite to each other, the guide rollers 21 are rotatably arranged on the mounting frame 10, and the pole piece passes through the gap between the two guide rollers 21, which can drive one of the guide rollers 21 to rotate, thereby transporting the pole piece, and the other guide roller 21 also rotates as the pole piece is transported.

[0029] The laser generator 30 can emit laser toward the pole piece. During the transportation of the pole piece, the laser generator 30 can emit laser toward the pole piece, so as to cut a pole ear on the pole piece.

[0030] The magnetic member 40 can generate a magnetic field on the conveying path of the pole piece, and when the pole piece is cut by laser and vibrates, it can cut the magnetic flux lines of the magnetic field, thereby forming eddy currents in the pole piece due to the vibration of the pole piece. The magnetic member 40 can be an electromagnet or a permanent magnet.

[0031] The pole piece in transport is guided by the guide mechanism 20 on the mounting frame 10, and the pole piece is cut by the laser generator 30. When the pole piece is shaken by the laser cutting, the shaking pole piece can cut the magnetic flux lines of the magnetic field under the action of the magnetic field generated by the magnetic part 40, and then generate eddy currents inside the pole piece. The eddy currents can make the pole piece heat up, so that the energy of the shake can be consumed by making the pole piece heat up, and then a non-contact method is used to reduce the shake of the pole piece, so that the pole piece can be prevented from being worn while suppressing the shake of the pole piece.

[0032] Among them, Figures 2 to 6 As shown, magnetic members 40 can be respectively arranged on the left and right sides of the pole piece, so that the magnetic flux lines of the magnetic field on the left and right sides of the pole piece can be evenly distributed, so that the force exerted by the magnetic field on the pole piece is more even. The mounting frame 10 includes two mounting plates arranged opposite to each other, and the guide mechanism 20 and the laser generator 30 are respectively arranged between the two mounting plates arranged opposite to each other. The pole piece is transferred and moved between the two mounting plates arranged opposite to each other, and the pole piece is transferred from top to bottom in the laser cutting device for battery pole pieces of the illustrated embodiment.

[0033] In some embodiments, the angle between the direction of the magnetic field generated by the magnetic part 40 and the surface of the pole piece is defined as a, 0°≤a<90° or 90°<a≤180°. Since the laser usually cuts the pole piece perpendicular to the surface of the pole piece, the pole piece will correspondingly generate a vibration perpendicular to the surface direction of the pole piece, that is, the vibration direction of the pole piece is perpendicular to the surface of the pole piece. The range of the angle a between the direction of the magnetic field generated by the magnetic part 40 and the surface of the pole piece is set to 0°≤a<90° or 90°<a≤180°, that is, the direction of the magnetic field generated by the magnetic part 40 is not perpendicular to the surface of the pole piece, so that the direction of the magnetic field generated by the magnetic part 40 can be different from the direction of the pole piece vibration, and there is a certain angle, which can ensure that the magnetic field generated by the magnetic part 40 can be cut when the pole piece is vibrated, so that the vibrating pole piece generates eddy current heating, and the energy of the vibration is consumed by causing the pole piece to heat up, and then a non-contact method is used to reduce the vibration of the pole piece, so that the pole piece can be prevented from being worn when the vibration of the pole piece is suppressed.

[0034] In some embodiments, Figures 2 to 7 As shown, the guide mechanism 20, the laser generator 30 and the magnetic member 40 are sequentially arranged along the conveying path of the pole piece. Specifically, the pole piece is first guided by the guide mechanism 20 at the upper end, then cut by the laser emitted by the laser generator 30, and then passes through the area between the two magnetic members 40, where the magnetic field offsets the jitter caused by cutting. In some other embodiments, the positions of the laser generator 30 and the magnetic member 40 can also be changed, that is, the magnetic member 40 can be located between the guide mechanism 20 and the laser generator 30.

[0035] In some embodiments, Figures 2 to 7 As shown, the laser cutting device for the battery pole piece also includes an exhaust member, a blowing member and a limiting assembly 50 arranged on the mounting frame 10, the limiting assembly 50 is provided with a suction channel and a blowing channel, the exhaust member is connected to the suction channel, the blowing member is connected to the blowing channel, the suction channel has a suction port 511, the blowing channel has a blowing port 512, and the suction port 511 and the blowing port 512 are both arranged on the side of the limiting assembly 50 facing the pole piece. Specifically, the limiting assembly 50 is arranged on one side of the pole piece. In the illustrated embodiment, the limiting assembly 50 is arranged on the side of the pole piece away from the laser generator 30, and the pole piece passes through the guide mechanism 20 and the laser generator 30 before passing through the limiting assembly 50. In other embodiments, the limiting assembly 50 can also be located on the same side of the pole piece as the laser generator 30.

[0036] The suction member is used to suck air into the suction channel so that the suction port 511 has an adsorption force on the pole piece. The suction member can be a blower, and the suction member sucks air into the suction channel to form a negative pressure at the suction port 511, so that the suction port 511 has an attraction force on the pole piece. The blowing member is used to supply air into the blowing channel so that the blowing port 512 blows air toward the pole piece. The blowing member can be a blower, and the blowing member supplies air into the blowing channel so that the blowing port 512 blows air toward the pole piece.

[0037] The attraction generated by the suction port 511 on the pole piece causes the pole piece to be sucked toward the limiting assembly 50, thereby limiting the pole piece and eliminating jitter. Air is blown toward the pole piece through the blowing port 512 to achieve a balanced state, so that the pole piece is in a suspended state, thereby preventing the pole piece from contacting the limiting assembly 50, thereby avoiding frictional contact between the pole piece and the limiting assembly 50 and causing wear while playing a certain limiting role.

[0038] Among them, during the operation of the laser cutting device for the battery pole piece, the air flow rate of the exhaust member sucking air into the suction channel is greater than the air flow rate of the blowing member blowing air into the blowing channel. In this way, the pole piece is sucked toward the limiting assembly 50 under the suction action of the suction port 511, and the pole piece is not in contact with the limiting assembly 50 due to the action of a small amount of gas delivered from the blowing port 512.

[0039] In some embodiments, Figures 2 to 7 As shown, there are multiple suction ports 511 and multiple blowing ports 512, and the multiple suction ports 511 and multiple blowing ports 512 are arranged at intervals along the conveying direction of the pole piece. Specifically, the multiple suction ports 511 and multiple blowing ports 512 can be evenly distributed in a certain order so that the pole piece is evenly affected by the suction port 511 and the force of the blowing port 512. Among them, the suction port 511 and the blowing port 512 are both rectangular groove structures, and extend laterally along the width direction of the pole piece. The length of the suction port 511 and the blowing port 512 can match the width of the pole piece, for example, it is substantially the same as the width of the pole piece.

[0040] In some embodiments, there is at least one blowing port 512 between two adjacent suction ports 511, for example, there are one or two blowing ports 512 between every two adjacent suction ports 511. In some embodiments, there is at least one suction port 511 between two adjacent blowing ports 512, for example, there are one or two suction ports 511 between every two adjacent blowing ports 512.

[0041] like Figures 2 to 7 As shown in the figure, the suction ports 511 and the blowing ports 512 are alternately distributed up and down, that is, there is a blowing port 512 between every two adjacent suction ports 511, and there is a suction port 511 between every two adjacent blowing ports 512, so that the pole piece is more evenly affected by the blowing and suction forces.

[0042] In some embodiments, Figures 2 to 7 As shown, the limiting assembly 50 includes a box body 51 and a cover body 52 arranged on the side of the box body 51 away from the pole piece, the cover body 52 has an inner cavity 521, a connecting cavity 513 and a uniformly distributed cavity 514 connected to the connecting cavity 513 are provided in the box body 51, and an air suction port 511 and an air blowing port 512 are both arranged on the box body 51, the air suction port 511 is connected to the inner cavity 521 of the cover body 52, and the air blowing port 512 is connected to the uniformly distributed cavity 514.

[0043] The air suction member is connected to the inner cavity 521 of the cover body 52, and the air suction channel includes the inner cavity 521 of the cover body 52 and the air suction port 511. The air suction member sucks air into the inner cavity 521 of the cover body 52, so that the inner cavity 521 of the cover body 52 forms a negative pressure, and then the air suction port 511 connected to the inner cavity 521 of the cover body 52 is in a negative pressure state, and the air suction port 511 sucks air into the inner cavity 521 of the cover body 52, thereby having an adsorption force on the electrode. Specifically, the cover body 52 is provided with a total air outlet duct 518 connected to the inner cavity 521, and the air suction member is connected to the inner cavity 521 of the cover body 52 through the total air outlet duct 518.

[0044] The blowing member is connected with the connecting cavity 513, and the blowing channel includes the connecting cavity 513, the uniform cavity 514 and the blowing port 512. Specifically, the connecting cavity 513 extends in the vertical direction, and the blowing member blows air into the connecting cavity 513. The air in the connecting cavity 513 enters the uniform cavity 514 and is blown out toward the pole piece through the blowing port 512. Specifically, one end of the connecting cavity 513 is provided with a total air inlet pipe 517 connected with the connecting cavity 513, and the blowing member is connected with the connecting cavity 513 through the total air inlet pipe 517, and a connecting hole 516 is provided between the uniform cavity 514 and the connecting cavity 513, and the uniform cavity 514 is connected with the connecting cavity 513 through the connecting hole 516, and the blowing member inputs the airflow into the connecting cavity 513 through the total air inlet pipe 517, and the airflow in the connecting cavity 513 enters the uniform cavity 514 through the connecting hole 516, and is then blown out toward the pole piece through the blowing port 512.

[0045] In some embodiments, Figure 5 and Figure 7 As shown, there are multiple evenly distributed cavities 514, and the multiple evenly distributed cavities 514 are all connected to the connecting cavity 513. Each evenly distributed cavity 514 is provided with a blowing port 512. The multiple evenly distributed cavities 514 are arranged at intervals along the conveying direction of the electrode piece, that is, arranged at intervals up and down. There are multiple suction ports 511, and the multiple suction ports 511 are also arranged at intervals along the conveying direction of the electrode piece.

[0046] Specifically, an air suction port 511 is provided between every two adjacent uniformly distributed cavities 514, and the exhaust piece connected to the total air outlet pipe 518 on the cover body 52 works, so that a negative pressure is formed in the inner cavity 521 of the cover body 52, and then the outside air is sucked in through the air suction port 511, and at the same time, the blowing piece connected to the total air inlet pipe 517 on the box body 51 works to supply air. When working, the air flow rate in the total air inlet pipe 517 is less than the air flow rate in the total air outlet pipe 518, and then the air flow in the total air inlet pipe 517 is evenly distributed to the multiple uniformly distributed cavities 514 through the connecting cavity 513 and multiple connecting holes 516, and then discharged outwardly through the blowing port 512, and the pole piece is sucked toward the box body 51 under the suction action of the air suction port 511, and the pole piece is not in contact with the box body 51 due to the small amount of gas delivered from the blowing port 512, thereby avoiding frictional contact between the pole piece and the box body 51 and causing wear while playing a certain limiting role.

[0047] In some embodiments, Figures 2 to 7 As shown, the air suction port 511 passes through the box body 51 , and air inlet grooves 515 communicating with the air suction port 511 are provided on both sides of the air suction port 511 . The air inlet grooves 515 extend from the side of the box body 51 to the air suction port 511 .

[0048] Specifically, the air inlet groove 515 runs through the side of the box body 51. When the exhaust component and the blowing component are working, external gas can enter the air suction port 511 from the air inlet groove 515 on the side of the box body 51, so that the adsorption force of the air suction port 511 on the pole piece and the force of the air blowing port 512 on the pole piece reach a balanced state, thereby avoiding the pole piece and the box body 51 from fitting together.

[0049] In some embodiments, the laser generator 30 is covered with a shielding cover to reduce interference of the magnetic field on the laser generator 30 .

[0050] By those skilled in the art, the electrical components of the laser cutting device for the battery pole piece of the embodiment of the present application can be connected to its adaptive power supply through wires, and a suitable controller can be selected according to actual conditions to meet the control requirements. For the specific connection and control sequence, reference can be made to the working principle of the laser cutting device for the battery pole piece, and the electrical connection can be completed according to the working sequence between the electrical components. The detailed connection means are well-known technologies in the art. The following mainly introduces the working principle and process, and no further explanation of the electrical control is given.

[0051] The working principle of the laser cutting device for battery pole pieces of the present application is as follows: the pole piece in transport is initially guided by the guide mechanism 20 on the mounting frame 10, and the pole piece is cut by the laser generator 30 during the transmission of the pole piece. When the pole piece is shaken by the laser cutting, under the action of the magnetic field generated by the magnetic part 40, the shaking pole piece can cut the magnetic flux lines of the magnetic field and then generate eddy currents inside the pole piece. The eddy currents can make the pole piece heat up, so that the energy of the shake can be consumed by making the pole piece heat up, and then a non-contact method is used to reduce the shake of the pole piece, thereby preventing the pole piece from being worn while suppressing the shake of the pole piece. At the same time, the exhaust member connected to the total air outlet pipe 518 on the cover body 52 works, so that the inner cavity 521 of the cover body 52 forms a negative pressure, and then the outside air is sucked in through the air suction port 511, and at the same time, the blowing member connected to the total air inlet pipe 517 on the box body 51 works to supply air. When working, the air flow rate in the total air inlet pipe 517 is less than the air flow rate in the total air outlet pipe 518, and then the air flow in the total air inlet pipe 517 is evenly distributed to the multiple uniformly distributed cavities 514 through the connecting cavity 513 and the multiple connecting holes 516, and then passes through the air blowing port 512. The electrode is discharged outward, and is sucked toward the box body 51 by the suction action of the suction port 511. The small amount of gas sent out from the blowing port 512 prevents the electrode from contacting the box body 51, thereby playing a certain limiting role and avoiding frictional contact between the electrode and the box body 51 to cause wear. External gas can enter the suction port 511 from the air inlet slot 515 on the side of the box body 51, thereby making the adsorption force of the suction port 511 on the electrode and the force of the blowing port 512 on the electrode reach a balanced state, thereby avoiding the electrode and the box body 51 from fitting together.

[0052] The laser cutting device for the battery pole piece in the embodiment of the present application reduces the vibration of the pole piece by two non-contact suppression means: the magnetic field effect generated by the magnetic part 40 and the adsorption effect of the limit assembly 50, thereby preventing the pole piece from being worn while suppressing the vibration of the pole piece.

[0053] The scheme of the present application has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of the various embodiments have their own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments. Those skilled in the art should also be aware that the actions and modules involved in the specification are not necessarily required for the present application. In addition, it can be understood that the steps in the method of the embodiment of the present application can be adjusted in order, merged and deleted according to actual needs, and the modules in the device of the embodiment of the present application can be merged, divided and deleted according to actual needs.

[0054] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A laser cutting device for battery pole pieces, characterized in that: include: Mounting frame; A guiding mechanism, provided on the mounting frame, and used for guiding the pole piece when the pole piece is transported; A laser generator, disposed on the mounting frame, capable of emitting laser light toward the pole piece; as well as A magnetic component is arranged on the mounting frame, and the magnetic component can generate a magnetic field on the conveying path of the pole piece, and can cut the magnetic flux lines of the magnetic field when the pole piece is shaken by laser cutting.

2. The laser cutting device for battery pole pieces according to claim 1, characterized in that: The angle between the direction of the magnetic field generated by the magnetic member and the surface of the pole piece is defined as a, 0°≤a<90° or 90°<a≤180°.

3. The laser cutting device for battery pole pieces according to claim 1, characterized in that: The guide mechanism, the laser generator and the magnetic member are arranged in sequence along the conveying path of the pole piece.

4. The laser cutting device for battery pole pieces according to claim 1, characterized in that: It also includes an air suction member, an air blowing member and a limiting assembly arranged on the mounting frame, the limiting assembly is provided with an air suction channel and an air blowing channel, the air suction member is communicated with the air suction channel, the air blowing member is communicated with the air blowing channel, the air suction channel has an air suction port, the air blowing channel has an air blowing port, the air suction port and the air blowing port are both arranged on a side of the limiting assembly facing the pole piece; The air suction member is used to suck air into the air suction channel so that the air suction port has an adsorption force on the pole piece; The blowing member is used to supply air to the blowing channel so that the blowing port blows air toward the pole piece.

5. The laser cutting device for battery pole pieces according to claim 4, characterized in that: There are multiple air suction ports and multiple air blowing ports, and the multiple air suction ports and the multiple air blowing ports are arranged at intervals along the conveying direction of the electrode piece.

6. The laser cutting device for battery pole pieces according to claim 5, characterized in that: There is at least one blowing port between two adjacent suction ports; and / or There is at least one air suction port between two adjacent air blowing ports.

7. The laser cutting device for battery pole pieces according to claim 4, characterized in that: The limit assembly comprises a box body and a cover body arranged on the side of the box body away from the pole piece, the cover body has an inner cavity, a connecting cavity and a uniform cavity connected to the connecting cavity are arranged in the box body, the air suction port and the air blowing port are both arranged on the box body, the air suction port is connected to the inner cavity of the cover body, and the air blowing port is connected to the uniform cavity; The air suction member is in communication with the inner cavity of the cover body, and the air suction channel includes the inner cavity of the cover body and the air suction port; The blowing member is in communication with the connecting cavity, and the blowing channel comprises the connecting cavity, the uniformly distributed cavity and the blowing port.

8. The laser cutting device for battery pole pieces according to claim 7, characterized in that: There are a plurality of uniformly distributed cavities, each of which is connected to the connecting cavity, each of which is provided with the blowing port, and the plurality of uniformly distributed cavities are arranged along the conveying direction of the electrode piece; There are multiple air suction ports, and the multiple air suction ports are arranged along the conveying direction of the electrode piece.

9. The laser cutting device for battery pole pieces according to claim 7, characterized in that: The air suction port penetrates the box body, and air inlet grooves communicating with the air suction port are arranged on both sides of the air suction port, and the air inlet grooves extend from the side of the box body to the air suction port.

10. The laser cutting device for battery pole pieces according to claim 4, characterized in that: The air flow rate of the air suction member sucking air into the air suction channel is greater than the air flow rate of the air blowing member blowing air into the air blowing channel.

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