CN118357221B

CN118357221B - Full-automatic laser cleaning equipment

Info

Publication number: CN118357221B
Application number: CN202410778235.7A
Authority: CN
Inventors: 张洪鑫; 舒福林; 温国斌; 钟辉贤; 李宗璟; 李和清; 卢鹤
Original assignee: Guangdong Guoyu Technology Co ltd
Current assignee: Guangdong Guoyu Technology Co ltd
Priority date: 2024-06-17
Filing date: 2024-06-17
Publication date: 2024-08-09
Anticipated expiration: 2044-06-17
Also published as: CN118357221A

Abstract

The invention discloses full-automatic laser cleaning equipment, which relates to the technical field of laser processing and comprises a machine table, a feeding and conveying device, a feeding and conveying manipulator, a first laser cleaning device, a turnover device, a second laser cleaning device, a discharging and conveying manipulator and a discharging and conveying device; the machine table is provided with two first adsorption platforms and two second adsorption platforms, the first laser cleaning device is movably arranged above the two first adsorption platforms, and the second laser cleaning device is movably arranged above the two second adsorption platforms; the feeding and conveying manipulator is used for conveying the pole piece, the first laser cleaning device is used for cleaning a part to be cleaned on the first surface of the unprocessed pole piece, the turning device is used for turning over the pole piece, the second laser cleaning device is used for cleaning a part to be cleaned on the second surface of the pole piece, and the discharging and conveying manipulator is used for conveying the pole piece from the turning device to two second adsorption platforms. Through foretell setting to solve current battery pole piece coating and wash the lower problem of production efficiency.

Description

Full-automatic laser cleaning equipment

Technical Field

The invention relates to the technical field of pole piece cleaning, in particular to full-automatic laser cleaning equipment.

Background

Lithium ion batteries are widely focused on due to the advantages of high energy density, environmental friendliness and the like, are widely applied to electronic equipment such as mobile phones, notebook computers and the like, and are increasingly focused on the application of the lithium ion batteries in the field of electric automobiles along with the development of electric automobile technologies.

In the production and manufacture of lithium batteries, a process of welding a tab to a pole piece is generally involved, and in order to ensure welding quality and safe use of the lithium battery, a welding area on the pole piece needs to be cleaned with a coating, namely, the coating at the position of the welding tab on the pole piece is cleaned. The conventional cleaning methods mainly comprise a mechanical scraping cleaning method and a laser cleaning method, wherein the laser cleaning method irradiates a coating through a high-energy laser beam, the coating absorbs certain energy, and coating particles are gasified, sublimated, vibrated and the like, so that the coating particles are removed.

However, the existing laser cleaning machine for cleaning the battery pole piece coating has lower production efficiency and cannot meet the requirement of high productivity.

Disclosure of Invention

The invention mainly provides full-automatic laser cleaning equipment to solve the problem that the production efficiency of an existing laser cleaning machine for cleaning a battery pole piece coating is low.

In order to achieve the above purpose, the invention provides a full-automatic laser cleaning device, which comprises a machine table, a feeding and conveying device, a feeding and conveying manipulator, a first laser cleaning device, a turnover device, a second laser cleaning device, a discharging and conveying manipulator and a discharging and conveying device; wherein,

The machine table is provided with a first production area and a second production area, the feeding conveying device, the feeding conveying mechanical arm and the first laser cleaning device are arranged in the first production area, the turnover device is arranged between the first production area and the second production area, and the second laser cleaning device, the discharging conveying mechanical arm and the discharging conveying device are arranged in the second production area;

The machine table is provided with two first adsorption platforms on the first production area, two second adsorption platforms on the second production area, the two first adsorption platforms and the two second adsorption platforms are symmetrically distributed relative to the turnover device, the first laser cleaning device is movably arranged above the two first adsorption platforms, and the second laser cleaning device is movably arranged above the two second adsorption platforms;

The feeding and conveying device is used for feeding and conveying unprocessed pole pieces, the feeding and conveying mechanical arm is used for conveying unprocessed pole pieces from the feeding and conveying device to the two first adsorption platforms, the first laser cleaning device is used for cleaning a part to be cleaned on a first surface of the unprocessed pole pieces, the turning device is used for turning the pole pieces, the second laser cleaning device is used for cleaning the part to be cleaned on a second surface, opposite to the first surface, of the pole pieces, the blanking and conveying mechanical arm is used for conveying the pole pieces from the turning device to the two second adsorption platforms and conveying the processed pole pieces from the two second adsorption platforms to the blanking and conveying device, and the blanking and conveying device is used for blanking and conveying the processed pole pieces;

The feeding conveying device comprises two feeding conveying modules which are arranged side by side and are in one-to-one correspondence with the two first adsorption platforms, each feeding conveying module is provided with a feeding conveying channel, and the feeding conveying channels are arranged at right angles;

The feeding conveying channel is provided with a discharging station, a material taking station and an empty station, the discharging station and the empty station are respectively positioned at two ends of the feeding conveying channel and are both close to the side of the machine table, the material taking station is arranged at the corner of the feeding conveying channel, and the feeding conveying module is used for conveying a feeding bin jig loaded with unprocessed pole pieces along the conveying direction defined by the feeding conveying channel;

the feeding and conveying mechanical arm comprises two feeding and conveying modules, the two feeding and conveying modules are arranged side by side and are arranged above the feeding and conveying device and the two first adsorption platforms, the feeding and conveying modules are used for conveying unprocessed pole pieces from the feeding and conveying device to the corresponding first adsorption platforms, and the feeding and conveying modules are also used for flattening the pole pieces;

the feeding and carrying module comprises a first moving assembly, a first lifting assembly, a material taking and adsorbing assembly, a movable adsorbing assembly and a blowing assembly; wherein,

The first lifting assembly is connected with the first moving assembly, the first moving assembly drives the first lifting assembly to reciprocate between the feeding conveying device and the corresponding first adsorption platform, the material taking adsorption assembly and the movable adsorption assembly are connected to the first lifting assembly, and the first lifting assembly is used for driving the material taking adsorption assembly and the movable adsorption assembly to reciprocate in the vertical direction;

The material taking adsorption assembly, the movable adsorption assembly and the air blowing assembly are all connected with an external pneumatic system, and the material taking adsorption assembly and the movable adsorption assembly are used for jointly adsorbing and fixing the pole pieces and carrying the pole pieces to the cleaning stations of the corresponding first adsorption platforms under the action of the first moving assembly and the first lifting assembly;

the material taking adsorption assembly and the movable adsorption assembly can move circumferentially and are in linkage fit with each other, the circumferential rotation direction of the material taking adsorption assembly is opposite to that of the movable adsorption assembly, and the material taking adsorption assembly and the movable adsorption assembly rotate towards directions close to each other respectively, so that the middle area of the adsorbed pole piece arches;

And one part of the blowing component is connected with the material taking adsorption component, the other part of the blowing component is connected with the movable adsorption component, and the blowing component is used for blowing air to the side edge of the pole piece when the material taking adsorption component and the movable adsorption component adsorb and fix the pole piece.

Optionally, the feeding conveying module comprises a feeding conveying rail, a feeding pushing assembly, a stopping assembly, a feeding jacking assembly and a pushing assembly; wherein,

The feeding conveying rail is arranged in a right angle, the feeding conveying channel is formed on the feeding conveying rail, the feeding pushing assembly is used for pushing a feeding bin jig loaded with unprocessed pole pieces from the discharging station to the material taking station, and the stop assembly is used for positioning and locking or releasing the feeding bin jig;

the feeding jacking assembly is arranged in the machine table and is in counterpoint with the material taking station, the feeding jacking assembly is used for jacking or descending the feeding bin jig, and the pushing-out assembly is used for pushing the empty material from the material taking station to the empty material station.

Optionally, the feeding and carrying module further comprises a feeding and adsorbing assembly and a first leveling assembly, the feeding and adsorbing assembly is fixed on the first lifting assembly, the first leveling assembly is connected with the feeding and adsorbing assembly, and the feeding and adsorbing assembly is used for adsorbing and fixing the pole piece and carrying the pole piece from the cleaning station to the transferring station of the first adsorption platform under the action of the first moving assembly and the first lifting assembly;

The first smoothing component is connected to the feeding adsorption component and is used for smoothing the pole piece.

Optionally, the full-automatic laser cleaning device further comprises a gantry bracket, the gantry bracket is fixed on the machine table, the first laser cleaning device comprises a first driving module and a first laser cleaning assembly, the first driving module is installed on one side of the gantry bracket, the first laser cleaning assembly is connected with the first driving module, the first laser cleaning assembly is arranged corresponding to cleaning stations of the two first adsorption platforms, the first driving module is used for driving the first laser cleaning assembly to move in the vertical direction, and the first laser cleaning assembly is used for cleaning a part to be cleaned on the first surface of the pole piece by laser;

The second laser cleaning device comprises a second driving module and a second laser cleaning assembly, the second driving module is mounted on the other side of the gantry support, the second laser cleaning assembly is connected with the second driving module, the second laser cleaning assembly corresponds to the cleaning station settings of the two second adsorption platforms, the second driving module is used for driving the second laser cleaning assembly to move in the vertical direction, and the second laser cleaning assembly is used for cleaning a part to be cleaned on the second surface of the pole piece by laser.

Optionally, unloading transport manipulator includes two unloading transport modules, two unloading transport modules set up side by side, and erect in two second adsorption platform with unloading conveyor's top, unloading transport module is used for following on the pole piece turning device carries to the second adsorption platform that corresponds, unloading transport module still is used for smoothing the pole piece.

Optionally, the blanking conveying module comprises a second moving assembly, a second lifting assembly, a conveying adsorption assembly, a second smoothing assembly and a blanking adsorption assembly; wherein,

The second lifting assembly is connected with the second moving assembly, the second moving assembly drives the second lifting assembly to reciprocate between the corresponding second adsorption platform and the blanking conveying device, the carrying adsorption assembly and the blanking adsorption assembly are both connected with the second lifting assembly, the blanking adsorption assembly can independently move relative to the carrying adsorption assembly, and the second lifting assembly is used for driving the carrying adsorption assembly and the blanking adsorption assembly to reciprocate in the vertical direction;

the second smoothing component is connected with the carrying adsorption component and is used for smoothing the pole piece.

Optionally, the full-automatic laser cleaning device further comprises a first dust extraction device and a second dust extraction device, the first dust extraction device is arranged in the first production area, the second dust extraction device is arranged in the second production area, the first dust extraction device is used for extracting dust generated when the first laser cleaning device cleans the part to be cleaned on the first surface of the pole piece, and the second dust extraction device is used for extracting dust generated when the second laser cleaning device cleans the part to be cleaned on the second surface of the pole piece.

The beneficial effects of the invention are as follows: compared with the prior art, the full-automatic laser cleaning device disclosed by the invention has compact layout and high integration level, is beneficial to reducing the volume of the whole device, can effectively reduce the space waste of the device by arranging double stations in the limited space of the whole device, ensures convenient carrying and placement of the whole device, can realize loading and unloading without stopping the machine, improves the production efficiency of the device, is suitable for single-sided or double-sided cleaning and marking of source plates with different sizes and special-shaped new energy, and is suitable for the production of standard equipment for cleaning pole plates in a large batch, thereby greatly improving the production efficiency of cleaning the coating of battery pole plates.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a fully automatic laser cleaning apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic top view of an embodiment of the fully automatic laser cleaning apparatus according to the present invention;

FIG. 3 is a schematic diagram of the front view of an embodiment of the fully automatic laser cleaning apparatus of the present invention;

FIG. 4 is a schematic structural view of an embodiment of a feeding conveyor of the present invention;

FIG. 5 is a schematic view of an embodiment of a stop assembly according to the present invention;

FIG. 6 is a schematic structural diagram of an embodiment of a loading and transporting manipulator according to the present invention;

FIG. 7 is a schematic diagram of an embodiment of a loading and transporting module according to the present invention;

FIG. 8 is a schematic structural diagram of a first adsorption platform and a second adsorption platform according to an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of an embodiment of a turnover device, a first adsorption platform and a second adsorption platform according to the present invention;

FIG. 10 is a schematic view of a first laser cleaning device according to an embodiment of the present invention;

FIG. 11 is a schematic view of a first laser cleaning device according to another embodiment of the present invention;

Fig. 12 is a schematic structural diagram of an embodiment of a blanking conveying manipulator according to the present invention.

Reference numerals illustrate:

100. Full-automatic laser cleaning equipment;

1. A machine table; 11. a first production area; 12. a second production zone; 13. a first adsorption stage; 131. a cleaning station; 132. a transfer station; 14. a second adsorption stage; 15. a mounting surface;

2. A feeding and conveying device; 21. a feeding and conveying module; 211. feeding conveying tracks; 212. a feeding pushing component; 213. a stop assembly; 2131. a stopper; 2132. a clamping groove; 214. a feeding jacking component; 22. a feeding conveying channel; 23. a discharging station; 24. a material taking station; 25. a blank station; 26. feeding bin jigs;

3. feeding and carrying mechanical arm; 31. a feeding and carrying module; 311. a first moving assembly; 312. a first lifting assembly; 3121. a mounting plate; 313. a material taking adsorption component; 3131. a material taking support; 314. a movable adsorption assembly; 3141. a movable support; 315. an air blowing assembly; 316. a linkage driving assembly; 3161. a linkage cylinder; 3162. a drive rack; 3163. a mating gear; 317. a feed adsorption assembly; 3171. a feeding support; 3172. a movable notch; 318. a first smoothing assembly; 3181. smoothing the cylinder; 3182. a pacifying plate;

4. a first laser cleaning device; 41. a first driving module; 42. a first laser cleaning assembly; 421. a first laser generator; 422. a first galvanometer; 423. a first annular light source; 424. a first CCD camera; 43. a gantry bracket;

5. A turnover device; 51. a turnover module; 511. an adsorption type overturning platform; 5111. an adsorption surface; 512. a turnover power module; 5121. a straight rack; 5122. rotating the gear;

6. A second laser cleaning device;

7. a blanking and carrying manipulator; 71. a blanking carrying module; 711. a second moving assembly; 712. a second lifting assembly; 7121. an assembly plate; 713. carrying the adsorption component; 714. a second smoothing assembly; 715. a blanking adsorption assembly; 7151. a sorting cylinder; 7152. a blanking support;

8. A blanking conveying device;

91. a first dust extraction device; 92. and the second dust extraction device.

The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the present invention, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.

Referring to fig. 1, a full-automatic laser cleaning apparatus 100 includes a machine 1, a feeding and conveying device 2, a feeding and conveying manipulator 3, a first laser cleaning device 4, a turning device 5, a second laser cleaning device 6, a discharging and conveying manipulator 7, and a discharging and conveying device 8.

The machine 1 has a first production area 11 and a second production area 12, the feeding and conveying device 2, the feeding and conveying manipulator 3 and the first laser cleaning device 4 are all arranged in the first production area 11, the turning device 5 is arranged between the first production area 11 and the second production area 12, and the second laser cleaning device 6, the discharging and conveying manipulator 7 and the discharging and conveying device 8 are arranged in the second production area 12. The machine 1 is provided with two first adsorption platforms 13 on a first production area 11, two second adsorption platforms 14 on a second production area 12, the two first adsorption platforms 13 and the two second adsorption platforms 14 are symmetrically distributed about the turnover device 5, the first laser cleaning device 4 is movably arranged above the two first adsorption platforms 13, and the second laser cleaning device 6 is movably arranged above the two second adsorption platforms 14.

The feeding and conveying device 2 is used for feeding and conveying unprocessed pole pieces, the feeding and conveying mechanical arm 3 is used for conveying unprocessed pole pieces from the feeding and conveying device 2 to the two first adsorption platforms 13, the first laser cleaning device 4 is used for cleaning parts to be cleaned on the first face of the unprocessed pole pieces, the turning device 5 is used for turning the pole pieces, the second laser cleaning device 6 is used for cleaning parts to be cleaned on the second face, opposite to the first face, of the pole pieces, the blanking and conveying mechanical arm 7 is used for conveying the pole pieces from the turning device 5 to the two second adsorption platforms 14, and conveying the processed pole pieces from the two second adsorption platforms 14 to the blanking and conveying device 8, and the blanking and conveying device 8 is used for blanking and conveying the processed pole pieces.

Based on the above scheme setting, each device of this full-automatic laser cleaning equipment 100 overall arrangement is inseparable, and the integrated level is high, helps reducing the complete machine volume, is provided with the duplex position in the limited space of self complete machine, can reduce the space waste of equipment effectively, guarantees that the complete machine is carried and put conveniently, can realize not shutting down simultaneously and go up the unloading, has promoted the production efficiency of equipment, is suitable for all kinds of sizes, special-shaped new energy source single face or two-sided washing and marking, is fit for making pole piece abluent standard equipment production in batches to greatly promote battery pole piece coating abluent production efficiency.

It can be understood that the two pole pieces are placed in a manner that the processing end faces the processing end, the first surface and the second surface of the pole piece are arranged in opposite directions, the first surface and the second surface are relatively speaking, the pole pieces can be self-defined and set according to actual production conditions, and the parts to be cleaned of the pole pieces are parts of the pole pieces, which need to be welded with the pole pieces.

The machine 1 is provided with a mounting surface 15, and the feeding conveying device 2, the first adsorption platform 13, the turnover device 5, the first adsorption platform 13 and the discharging conveying device 8 are fixedly mounted on the mounting surface 15. The universal wheels and the foot seats are arranged at the bottom of the machine table 1, so that the whole machine equipment and the stable supporting equipment are convenient to move. The machine 1 is provided with a protective cover, the protective cover can be a left-right door type or a vertical sliding door type, and covers the upper half part of the full-automatic laser cleaning equipment 100, namely the protective cover is used for enclosing a feeding conveying device 2, a feeding manipulator, a first laser cleaning device 4, a turnover device 5, a second laser cleaning device 6, a blanking conveying manipulator 7 and a blanking conveying device 8, so that the full-automatic laser cleaning equipment 100 has a good processing environment, is beneficial to improving the cleaning effect of cleaning pole piece coatings, improving the cleaning quality and improving the production quality.

Wherein, first absorption platform 13 and first absorption platform 13 are all connected with outside pneumatic system, like this when the pole piece is placed on first absorption platform 13 and first absorption platform 13, can be fixed well, ensure the difficult positional deviation that produces of pole piece at laser cleaning's in-process to this cleaning performance who improves the pole piece improves production quality.

Referring to fig. 1 to 5, the feeding and conveying device 2 includes two feeding and conveying modules 21, where the two feeding and conveying modules 21 are arranged side by side and are arranged in one-to-one correspondence with the two first adsorption platforms 13, and each feeding and conveying module 21 has a feeding and conveying channel 22, and the feeding and conveying channels 22 are arranged at right angles. The feeding conveying channel 22 is provided with a discharging station 23, a material taking station 24 and an empty station 25, the discharging station 23 and the empty station 25 are respectively positioned at two ends of the feeding conveying channel 22 and are both close to the side of the machine table 1, the material taking station 24 is arranged at the corner of the feeding conveying channel 22, and the feeding conveying module 21 conveys a feeding bin jig 26 carrying unprocessed pole pieces along the conveying direction defined by the feeding conveying channel 22.

So set up, carry the module 21 in order to realize two transport material loading through two material loading, guarantee that the material loading is incessant, realize accomplishing the production of not shutting down in less space voluntarily, can improve production efficiency like this effectively.

The feeding conveying channel 22 is arranged at a right angle, so that on one hand, the feeding bin jig 26 carrying the pole piece can be positioned through the corner part of the feeding conveying channel 22, the effect of feeding and conveying the pole piece is improved, and the stability of conveying the pole piece is ensured; on the other hand still stops the feed bin tool 26 through stop subassembly 213, prevents effectively that feed bin tool 26 from producing not hard up, guarantees the stability of feed bin tool 26 for material loading transport manipulator 3 avoids producing the collision with feed bin tool 26 when getting from feed bin tool 26, makes things convenient for material loading transport manipulator 3 to get the material, can also reduce the damage to the pole piece simultaneously, promotes the effect of getting the material.

In addition, the feeding conveying channel 22 is arranged at a right angle, so that a conveying path can be well optimized, and pole pieces can be placed and conveyed in a small space. It can be appreciated that the feeding bin jig 26 is placed at the discharging station 23 by a manual or mechanical arm, so that the feeding is reliable, and the whole machine can be ensured to be produced without stopping.

With continued reference to fig. 1-5, the loading conveyor assembly 21 includes a loading conveyor track 211, a loading pusher assembly 212, a stop assembly 213, a loading lift assembly 214, and a push-out assembly (not shown). Wherein, the material loading conveying track 211 is the right angle form setting, and material loading conveying channel 22 forms on material loading conveying track 211, and material loading pushing component 212 is used for carrying the last feed bin tool 26 of unprocessed pole piece to push to get material station 24 from blowing station 23, and stop subassembly 213 is used for the location locking or release last feed bin tool 26. The feeding jacking component 214 is arranged in the machine table 1 and is aligned with the material taking station 24, the feeding jacking component 214 is used for jacking or descending the feeding bin jig 26, and the pushing component is used for pushing the empty feeding bin jig 26 from the material taking station 24 to the empty material taking station 25.

So set up to can realize automatic push goes up feed bin tool 26 between blowing station 23, get material station 24 and empty material station 25, promote the speed and the reliability of material loading.

Wherein, the side of material loading delivery track 211 can be provided with side limit structure, like limit strip, limit baffle or limit lug isotructure of side, limit structure carries out spacingly when removing to getting material station 24 from blowing station 23 to last feed bin tool 26 for go up the feed bin tool 26 and can carry on the pole piece steadily, not only can avoid causing the damage to the pole piece like this, can also prevent effectively that the phenomenon of card dun from taking place for last feed bin tool 26, promote the smoothness of material loading.

The feeding pushing assembly 212 is arranged on the feeding conveying track 211, the feeding pushing assembly 212 can be a linear motor module or a screw rod sliding table module, and the feeding bin jig 26 is placed on a moving module of the linear motor module or the screw rod sliding table module, so that the feeding bin jig 26 carrying the pole pieces is pushed to move.

The stop assembly 213 is disposed at a diagonal corner of the loading conveyor track 211, and the stop assembly 213 may include a cylinder and a stop 2131, the cylinder being fixed to the machine 1, the stop 2131 being connected to the cylinder, the cylinder pushing the stop 2131 toward the take out station 24. The one end that the stopper 2131 kept away from the cylinder is equipped with draw-in groove 2132, and draw-in groove 2132 is the V font setting, and the stopper 2131 passes through draw-in groove 2132 block and goes up feed bin tool 26 corner to this realizes stopping and goes up feed bin tool 26, ensures that go up feed bin tool 26 can place steadily and get material station 24 on, improves the stability of material loading pole piece.

It is understood that the stopping assembly 213 may be other structural members with locking, latching or stopping functions, so long as stopping or releasing the feeding bin jig 26 can be realized.

The material loading jacking subassembly 214 can be the jacking cylinder part, and the jacking cylinder module jacking is located the material loading bin tool 26 on the material taking station 24 to the material taking height of cooperation material loading transport manipulator 3 ensures that material loading transport manipulator 3 can continue to carry the pole piece, guarantees the production beat, promotes the smoothness of production, promotes production efficiency. The loading jack assembly 214 may be other structural members with lifting function, which is not limited herein.

The pushing component can comprise a pushing plate and an air cylinder, the pushing plate is connected with the air cylinder, the air cylinder drives the pushing plate to move from the material taking station 24 to the empty material taking station 25, so that the empty material taking station 24 can be pushed out of the empty material taking station 26 in time after the pole pieces on the material taking station 26 are taken out, and the material taking station 24 can be conveniently accessed by the material taking station 26 which is full in sequence, so that uninterrupted material loading production can be realized. The ejector assembly may push a robot or other structure capable of ejecting an empty loading bay 26 out of the take out station 24, not specifically limited herein.

Referring to fig. 1 to 3 and 6 to 7, the feeding and carrying manipulator 3 includes two feeding and carrying modules 31, the two feeding and carrying modules 31 are arranged side by side and are arranged above the feeding and carrying device 2 and the two first adsorption platforms 13, the feeding and carrying modules 31 are used for carrying unprocessed pole pieces from the feeding and carrying device 2 to the corresponding first adsorption platforms 13, and the feeding and carrying modules 31 are also used for smoothing the pole pieces.

So set up to can realize two transport operations in less space, with constantly snatch the pole piece from being located on the last feed bin tool 26 of getting on the material station 24, guarantee that the material loading is incessant, accomplish the production of not shutting down voluntarily, with this production efficiency that improves effectively. Moreover, the feeding and carrying module 31 also smoothes the pole piece, so that the pole piece has better flatness, and the to-be-cleaned part on the pole piece can be sufficiently cleaned when laser cleaning is performed, thereby improving the production quality of the cleaned pole piece.

It can be understood that the adsorption vacuum system of the feeding and carrying module 31 can adopt an integrated electromagnetic valve for sucking and breaking and displaying negative pressure values, so that the sucking disc can quickly break vacuum, the software can accurately and efficiently read the negative pressure values during sucking, and the control speed and the action speed of taking and discharging are improved.

The material loading transport module 31 includes first movable subassembly 311, first lifting assembly 312, get material and adsorb subassembly 313, activity adsorption subassembly 314 and blow subassembly 315, wherein, first lifting assembly 312 is connected in first movable subassembly 311, first movable subassembly 311 orders about first lifting assembly 312 at material loading conveyor 2 and corresponding first adsorption platform 13 reciprocating motion, get material and adsorb subassembly 313 and activity adsorption subassembly 314 all connect on first lifting assembly 312, first lifting assembly 312 is used for driving to get material and adsorb subassembly 313 and activity adsorption subassembly 314 reciprocating motion in the vertical direction.

The material taking and adsorbing assembly 313, the movable adsorbing assembly 314 and the air blowing assembly 315 are all connected with an external pneumatic system, and the material taking and adsorbing assembly 313 and the movable adsorbing assembly 314 are used for jointly adsorbing and fixing the pole piece and carrying the pole piece to the cleaning station 131 of the corresponding first adsorbing platform 13 under the action of the first moving assembly 311 and the first lifting assembly 312. The material taking and adsorbing assembly 313 and the movable adsorbing assembly 314 can all move circumferentially and are in linkage fit with each other, one part of the air blowing assembly 315 is connected to the material taking and adsorbing assembly 313, the other part is connected to the movable adsorbing assembly 314, and the air blowing assembly 315 is used for blowing air to the side edges of the pole pieces when the material taking and adsorbing assembly 313 and the movable adsorbing assembly 314 adsorb and fix the pole pieces.

Because the pole pieces are stacked on the upper bin jig 26, and the pole pieces are thinner, negative pressure is generated between the surfaces of the pole pieces, the stacked pole pieces are easy to attach together, and the pole pieces are not easy to grasp. In the process of grabbing the pole pieces, the material taking adsorption assembly 313 and the movable adsorption assembly 314 are driven by the first moving assembly 311 and the first lifting assembly 312, the material taking adsorption assembly 313 and the movable adsorption assembly 314 move to the upper side of the material taking station 24, the material taking adsorption assembly 313 and the movable adsorption assembly 314 are used for jointly adsorbing and fixing pole pieces located at the uppermost layer, in the process, the material taking adsorption assembly 313 and the movable adsorption assembly 314 are all in circumferential movement, the circumferential rotation direction of the material taking adsorption assembly 313 is opposite to the circumferential rotation direction of the movable adsorption assembly 314, the material taking adsorption assembly 313 and the movable adsorption assembly 314 are respectively rotated towards the directions close to each other, so that the middle area of the adsorbed pole pieces is arched, and the purpose of doing so is to enable larger gaps to be generated between the grabbed pole pieces and the pole pieces which are not grabbed, thereby being beneficial to separating pole pieces attached together and facilitating the material taking of the pole pieces.

Meanwhile, the pole pieces are blown through the blowing component 315, the blowing component 315 blows to the side edges of the pole pieces, so that air flow can be sent between the two pole pieces, and the pole pieces which are grabbed and the pole pieces which are not grabbed can be quickly separated, thereby improving the efficiency of grabbing the pole pieces and the production efficiency of carrying.

The first moving assembly 311 is erected above the mounting surface 15 through a rack, and the first moving assembly 311 may be a linear motor or a screw rod structure. The first lifting assembly 312 may include a mounting plate 3121 and a screw structure, and the material taking adsorption assembly 313 and the movable adsorption assembly 314 are rotatably mounted on the mounting plate 3121, and the mounting plate 3121 is fixedly connected with the screw structure. The first lifting assembly 312 may also be a linear motor, and the material taking and adsorbing assembly 313 and the movable adsorbing assembly 314 are fixedly connected with a moving terminal of the linear motor.

The material taking and adsorbing assembly 313 can comprise a material taking support 3131 and sucking discs, the sucking discs are fixed on the material taking support 3131, the number of the sucking discs can be two or more, and the sucking discs can be used for adsorbing and fixing the pole pieces, so that the pole pieces can be grabbed, and the operation of carrying the pole pieces is completed. The material taking and adsorbing assembly 313 may be other mechanism with an adsorbing function, which is not limited herein.

The movable suction assembly 314 may include a movable support 3141 and suction cups, the movable support 3141 is arranged side by side with the material taking support 3131, the suction cups are mounted on the movable support 3141, and the number of the suction cups may be two or more.

The loading and carrying module 31 may further include a linkage driving assembly 316, where the linkage driving assembly 316 is connected to the mounting plate 3121, and the linkage driving assembly 316 is used for moving the material taking and adsorbing assembly 313 and the movable adsorbing assembly 314 in a circumferential direction. The linkage driving assembly 316 comprises a linkage cylinder 3161, a driving rack 3162 and two matched gears 3163, the linkage cylinder 3161 is mounted on the mounting plate 3121, the driving rack 3162 is connected with the linkage cylinder 3161, the two matched gears 3163 are in meshed connection with each other and are arranged on one side of the mounting plate 3121, which is away from the material taking adsorption assembly 313 and the movable adsorption assembly 314, one of the two matched gears 3163 is fixedly connected with the material taking support 3131, and the other one is fixedly connected with the movable support 3141. The driving rack 3162 is engaged with any one of the two mating gears 3163, and the linkage cylinder 3161 is configured to drive any one of the two mating gears 3163 to rotate through the driving rack 3162, so as to drive the other one to rotate, thereby enabling the material taking and adsorbing assembly 313 and the movable adsorbing assembly 314 to perform circumferential movement.

The blowing assembly 315 may include two tuyere structures, one mounted on the take-off suction assembly 313 and the other mounted on the movable suction assembly 314. The air nozzle structure is arranged in a flat and long mode and communicated with an air path of an external pneumatic system, so that the air supply range of the air nozzle structure can cover the pole pieces, the reliability and the stability of the pole pieces are enhanced, the pole pieces attached together can be rapidly separated, and the pole piece carrying efficiency is improved. The blowing component 315 may also be other pneumatic components for driving air to flow, which is not limited herein.

Referring to fig. 1 to 3 and fig. 6 to 7, the feeding and carrying module 31 further includes a feeding and adsorbing assembly 317 and a first leveling assembly 318, the feeding and adsorbing assembly 317 is fixed on the first lifting assembly 312, that is, is fixedly installed on the mounting plate 3121, the first leveling assembly 318 is connected to the feeding and adsorbing assembly 317, the feeding and adsorbing assembly 317 is used for adsorbing and fixing the pole piece, and carrying the pole piece from the cleaning station 131 to the transfer station 132 of the first adsorption platform 13 under the action of the first moving assembly 311 and the first lifting assembly 312. The first smoothing assembly 318 is connected to the feed suction assembly 317 and is used to smooth the pole pieces.

The pole piece has good flatness by the arrangement, on the one hand, the adsorption force of the corresponding first adsorption platform 13 to the pole piece is enhanced, the stability of the fixed pole piece is improved, and on the other hand, laser cleaning is carried out, so that the part to be cleaned on the pole piece can be sufficiently cleaned, and the production quality of the cleaned pole piece is improved.

The feed suction assembly 317 may include a feed support 3171 and a plurality of suction cups, the feed support 3171 fixedly mounted on the mounting plate 3121, the plurality of suction cups mounted on the feed support 3171. The feeding suction unit 317 may be any other mechanism having a suction function, and is not particularly limited herein.

The first smoothing assembly 318 may include a smoothing cylinder 3181 and a smoothing plate 3182, the smoothing cylinder 3181 is fixedly mounted on a feed support 3171, the feed support 3171 has a movable gap 3172, the smoothing plate 3182 is connected with the smoothing cylinder 3181, and the movable gap 3172 is used for avoiding the smoothing plate 3182 so that the smoothing plate 3182 moves back and forth to smooth the pole piece. The first smoothing assembly 318 may also be a rotating smoothing disc, which rotates and smoothes the pole piece, and the first smoothing assembly 318 may also be other structural members with smoothing functions, which are not specifically limited herein.

Referring to fig. 1 to 3 and 8 to 12, the full-automatic laser cleaning apparatus 100 further includes a gantry bracket 43, the gantry bracket 43 is fixed on the machine table 1, the first laser cleaning device 4 includes a first driving module 41 and a first laser cleaning component 42, the first driving module 41 is installed on one side of the gantry bracket 43, the first laser cleaning component 42 is connected to the first driving module 41, the first laser cleaning component 42 is set corresponding to cleaning stations 131 of the two first adsorption platforms 13, the first driving module 41 is used for driving the first laser cleaning component 42 to move in a vertical direction, and the first laser cleaning component 42 is used for cleaning a part to be cleaned on a first surface of the pole piece by laser. The second laser cleaning device 6 comprises a second driving module and a second laser cleaning assembly, the second driving module is mounted on the other side of the gantry bracket 43, the second laser cleaning assembly is connected to the second driving module, the second laser cleaning assembly is arranged corresponding to the cleaning stations 131 of the two second adsorption platforms 14, the second driving module is used for driving the second laser cleaning assembly to move in the vertical direction, and the second laser cleaning assembly is used for cleaning a part to be cleaned on the second face of the pole piece by laser.

Under the action of laser, the part of the pole piece to be cleaned absorbs the high energy of the laser, namely the coating absorbs the high energy of the laser, and coating particles are gasified, sublimated, vibrated and the like, so that the coating is removed, the coating is sufficiently cleaned in the mode, reliable welding conditions are provided for the welding of the subsequent pole lugs, and the quality of the welded pole lugs is improved.

The first driving module 41 and the second driving module may be a screw module or a linear motor module.

The first laser cleaning component 42 and the second laser cleaning component have the same structure and function, the first laser cleaning component 42 can comprise a first laser generator 421, a first vibrating mirror 422, a first annular light source 423 and a first CCD camera 424, the first laser generator 421, the first vibrating mirror 422, the first annular light source 423 and the first CCD camera 424 are all fixed on the first driving module 41 through mounting structures, the first laser generator 421 can emit laser, the first vibrating mirror 422 is used for changing the optical fiber propagation direction of the laser, the first annular light source 423 provides a light source for the first CCD camera 424, the first CCD camera 424 can high-clearly identify the cleaning condition of the first surface of the pole piece, and whether the first surface of the pole piece is cleaned or not and the cleaning quality are detected.

The second laser cleaning component can comprise a second laser generator, a second vibrating mirror, a second annular light source and a second CCD camera, wherein the second laser generator, the second vibrating mirror, the second annular light source and the second CCD camera are all fixed on the second driving module through a mounting structure, the second laser generator can emit laser, the second vibrating mirror is used for changing the optical fiber propagation direction of the laser, the second annular light source provides a light source for the second CCD camera, the second CCD camera can high-definition identify the cleaning condition of the second face of the pole piece, and whether the second face of the pole piece is cleaned or not and the cleaning quality are detected.

With continued reference to fig. 1 to 3 and fig. 8 to 12, the turnover device 5 includes two turnover modules 51, where the two turnover modules 51 are disposed in one-to-one correspondence with the two first adsorption platforms 13 and are disposed in one-to-one correspondence with the two second adsorption platforms 14. It can be understood that the pole pieces on the two first adsorption platforms 13 can be grabbed onto the corresponding overturning modules 51 through the feeding and conveying mechanical arm 3, the pole pieces are overturned by the two overturning modules 51, and then the overturned pole pieces are grabbed onto the proper positions of the second adsorption platforms 14 through the discharging and conveying mechanical arm 7, so that the overturning operation of the pole pieces is completed.

The turnover module 51 may include an adsorption type turnover platform 511 and a turnover power module 512, where the adsorption type turnover platform 511 has an adsorption surface 5111, and the adsorption surface 5111 adsorbs and fixes the pole piece under the action of a pneumatic system. The turnover power module 512 is installed on the installation surface 15 of the machine table 1, the adsorption type turnover platform 511 is in transmission fit with the turnover power module 512, and the turnover power module 512 drives the adsorption type turnover platform 511 to rotate so as to realize the pole piece of the turnover machine.

During overturning, the overturning power module 512 drives the adsorption type overturning platform 511 to rotate, the adsorption type overturning platform 511 overturns towards the direction of the transferring station 132 until the adsorption surface 5111 of the adsorption type overturning platform 511 is attached to the pole piece located on the transferring station 132, the adsorption type overturning platform 511 adsorbs and fixes the pole piece, the overturning power module 512 drives the adsorption type overturning platform 511 to rotate and overturns towards the direction of the second adsorption platform 14 until the adsorption type overturning platform 511 is flattened, and the pole piece is released. The blanking conveying manipulator 7 adsorbs and fixes the pole piece positioned on the adsorption type overturning platform 511, and conveys the pole piece to the second adsorption platform 14, so that the pole piece conveying operation is completed.

The overturning power module 512 may include an air cylinder, a straight rack 5121 and a rotating gear 5122, the straight rack 5121 is connected with the air cylinder, the rotating gear 5122 is in meshed transmission with the straight rack 5121, the rotating gear 5122 is fixedly connected with the adsorption type overturning platform 511, the air cylinder drives the straight rack 5121 to move, and then drives the rotating gear 5122 to rotate, so that the rotating gear 5122 can synchronously drive the adsorption type overturning platform 511 to overturn.

The suction type flipping stage 511 may employ a suction type turntable in the related art, and is not particularly limited herein.

With continued reference to fig. 1 to 3 and fig. 8 to 12, the blanking conveying manipulator 7 includes two blanking conveying modules 71, the two blanking conveying modules 71 are arranged side by side and are erected above the two second adsorption platforms 14 and the blanking conveying device 8, the blanking conveying modules 71 are used for conveying the pole pieces from the turnover device 5 to the corresponding second adsorption platforms 14, and the blanking conveying modules 71 are also used for smoothing the pole pieces.

So set up to can realize two transport operations in less space, with constantly snatch the pole piece from upset module 51, guarantee to carry the pole piece incessantly, accomplish the production of not shutting down voluntarily, with this production efficiency that improves effectively. Moreover, the blanking handling module 71 also performs smoothing operation on the pole piece, so that the pole piece has better flatness, so that the part to be cleaned on the pole piece can be sufficiently cleaned during laser cleaning, and the production quality of the cleaned pole piece is improved.

It can be understood that the vacuum adsorption system of the blanking conveying module 71 can also adopt an integrated electromagnetic valve for sucking and breaking and displaying negative pressure values, so that the sucking disc can quickly break vacuum, the software can accurately and efficiently read the negative pressure values during sucking, and the control speed and the action speed of taking and discharging are improved.

The unloading transport module 71 includes second remove subassembly 711, second lifting unit 712, transport adsorption unit 713, second smooth subassembly 714 and unloading adsorption unit 715, wherein, second lifting unit 712 is connected in second remove subassembly 711, second remove subassembly 711 order about second lifting unit 712 reciprocating motion between corresponding second adsorption platform 14 and unloading conveyor 8, transport adsorption unit 713 and unloading adsorption unit 715 are all connected in second lifting unit 712, unloading adsorption unit 715 can independently remove relative to transport adsorption unit 713, second lifting unit 712 is used for driving transport adsorption unit 713 and unloading adsorption unit 715 reciprocating motion in the vertical direction. The second smoothing assembly 714 is connected to the transport suction assembly 713 and is used to smooth the pole piece.

The pole piece can be well carried through the arrangement, and after the pole piece is cleaned on the first surface, the second surface can be rapidly cleaned, so that the production time is well shortened, and the production efficiency is improved.

The second moving assembly 711 is mounted above the mounting surface 15 by a frame, and the second moving assembly 711 may be a linear motor or a screw structure. The second lifting assembly 712 may include a mounting plate 7121 and a screw structure, the handling adsorbing assembly 713 is fixedly mounted on the mounting plate 7121, the blanking adsorbing assembly 715 is movably connected to the mounting plate 7121, and the mounting plate 7121 is fixedly connected to the screw structure. The second lifting assembly 712 may be a linear motor, and the conveying and adsorbing assembly 713 and the discharging and adsorbing assembly 715 are fixedly connected with a moving terminal of the linear motor.

The carrying adsorption assembly 713 can comprise a carrying support and a sucker, wherein the sucker is fixed on the carrying support, the number of the sucker can be two or more, and the sucker can be used for adsorbing and fixing the pole pieces, so that the pole pieces can be grabbed, and the operation of carrying the pole pieces is completed. The transport suction unit 713 may be any other mechanism having a suction function, and is not particularly limited herein.

The second smoothing assembly 714 and the first smoothing assembly 318 may be the same set of structures, and the specific structure of the second smoothing assembly 714 may refer to the embodiment of the first smoothing assembly 318, which is not described in detail herein. Because the second smoothing component 714 and the first smoothing component 318 are the same set of structure, the second smoothing component 714 has at least all the beneficial effects brought by the technical solution of the embodiment of the first smoothing component 318, which are not described in detail herein.

The blanking adsorption component 715 can comprise a sorting cylinder 7151, a blanking support 7152 and sucking discs, the sucking discs are fixed on the blanking support 7152, the number of the sucking discs can be two or more, and the sucking discs can be used for realizing the adsorption of the fixed pole pieces, so that the pole pieces are grabbed, and the operation of blanking pole pieces is completed. The sorting cylinder 7151 is fixed on the end position of the assembly plate 7121, the blanking support 7152 is assembled on the assembly plate 7121 in a sliding manner, the sorting cylinder 7151 is connected with the blanking support 7152, and the sorting cylinder 7151 is used for driving the blanking support 7152 to move so as to realize independent movement of the blanking adsorption assembly 715 relative to the conveying adsorption assembly 713. By the arrangement, the blanking adsorption component 715 can classify the pole pieces after blanking processing, so that the blanking effect and efficiency are improved, and the product quality is guaranteed.

It should be understood that the blanking adsorbing assembly 715 may be other mechanism with an adsorbing function, which is not specifically limited herein.

Referring to fig. 1 to 3 and 8 to 9, the full-automatic laser cleaning apparatus 100 further includes a first dust extraction device 91 and a second dust extraction device 92, the first dust extraction device 91 is disposed in the first production area 11, the second dust extraction device 92 is disposed in the second production area 12, the first dust extraction device 91 is used for extracting dust generated when the first laser cleaning device 4 cleans a portion to be cleaned on the first surface of the pole piece, and the second dust extraction device 92 is used for extracting dust generated when the second laser cleaning device 6 cleans a portion to be cleaned on the second surface of the pole piece.

So set up, through first dust extraction device 91 and second dust extraction device 92 to can in time clear up piece or dust when carrying out laser cleaning to polar plate first face and second face, prevent effectively that the coating piece from falling back and covering abluent position, in order to provide reliable welding condition for the welding of follow-up utmost point ear, with this quality that improves the welding utmost point ear.

It will be appreciated that the first dust extraction device 91 may comprise a first double-pass suction tip arranged between the two first suction platforms 13 and arranged in correspondence with the cleaning station 131, one side of the first double-pass suction tip being arranged in register with one of the two pole pieces when the pole pieces are placed on the cleaning station 131, the other side of the first double-pass suction tip being arranged in register with the other of the two pole pieces, so as to be able to sufficiently extract dust.

Similarly, the second dust extraction device 92 may include a second two-way suction tip disposed between the two second adsorption platforms 14, one side of the second two-way suction tip being aligned with one of the two pole pieces when the pole pieces are placed on the second adsorption platform 14, and the other side of the second two-way suction tip being aligned with the other of the two pole pieces, so as to be able to sufficiently extract dust.

The first two-way suction pipe head and the second two-way suction pipe head are communicated with an external pneumatic system gas circuit through pipelines so as to suck dust.

The blanking conveying device 8 can adopt equipment configured with the same structure as the feeding conveying device 2, the blanking conveying device 8 is arranged corresponding to the blanking conveying manipulator 7, and the blanking conveying device 8 is used for conveying the processed pole pieces, so that the production efficiency of the full-automatic laser cleaning equipment 100 is improved.

The specific structure of the blanking conveying device 8 can refer to the embodiment of the feeding conveying device 2, and will not be described in detail herein. Since the blanking conveying device 8 adopts the same set of structure as the feeding conveying device 2, the blanking conveying device 8 at least has all the beneficial effects brought by the technical scheme of the embodiment of the feeding conveying device 2, and the detailed description is omitted.

The foregoing description is only of the optional embodiments of the present invention, and is not intended to limit the scope of the invention, and all the equivalent structural changes made by the description of the present invention and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the invention.

Claims

1. The full-automatic laser cleaning equipment is characterized by comprising a machine table, a feeding conveying device, a feeding conveying manipulator, a first laser cleaning device, a turnover device, a second laser cleaning device, a discharging conveying manipulator and a discharging conveying device; wherein,

2. The full-automatic laser cleaning device according to claim 1, wherein the feeding and conveying module comprises a feeding and conveying rail, a feeding and pushing assembly, a stopping assembly, a feeding and jacking assembly and a pushing assembly; wherein,

3. The full-automatic laser cleaning device according to claim 1, wherein the feeding and carrying module further comprises a feeding and adsorbing assembly and a first smoothing assembly, the feeding and adsorbing assembly is fixed on the first lifting assembly, the first smoothing assembly is connected with the feeding and adsorbing assembly, and the feeding and adsorbing assembly is used for adsorbing and fixing the pole piece and carrying the pole piece from a cleaning station to a transferring station of the first adsorption platform under the action of the first moving assembly and the first lifting assembly;

4. The full-automatic laser cleaning device according to claim 1, further comprising a gantry bracket, wherein the gantry bracket is fixed on the machine table, the first laser cleaning device comprises a first driving module and a first laser cleaning assembly, the first driving module is installed on one side of the gantry bracket, the first laser cleaning assembly is connected with the first driving module, the first laser cleaning assembly is arranged corresponding to cleaning stations of the two first adsorption platforms, the first driving module is used for driving the first laser cleaning assembly to move in the vertical direction, and the first laser cleaning assembly is used for laser cleaning a part to be cleaned on the first surface of the pole piece;

5. The full-automatic laser cleaning device according to claim 1, wherein the blanking conveying manipulator comprises two blanking conveying modules, the two blanking conveying modules are arranged side by side and are arranged above the two second adsorption platforms and the blanking conveying device, the blanking conveying modules are used for conveying pole pieces from the turnover devices to the corresponding second adsorption platforms, and the blanking conveying modules are also used for flattening the pole pieces.

6. The full-automatic laser cleaning apparatus according to claim 5, wherein the blanking transporting module comprises a second moving assembly, a second lifting assembly, a transporting and adsorbing assembly, a second smoothing assembly and a blanking and adsorbing assembly; wherein,

7. The fully automatic laser cleaning apparatus according to claim 1, further comprising a first dust extraction device and a second dust extraction device, wherein the first dust extraction device is disposed in the first production area, the second dust extraction device is disposed in the second production area, the first dust extraction device is used for extracting dust generated when the first laser cleaning device cleans a part to be cleaned on the first surface of the pole piece, and the second dust extraction device is used for extracting dust generated when the second laser cleaning device cleans a part to be cleaned on the second surface of the pole piece.