Battery cell shell laser cleaning device

Abstract

The utility model relates to a laser cleaning device for a battery cell shell. The laser cleaning device comprises a conveying mechanism, a clamping and rotating mechanism and a laser cleaning mechanism, the conveying mechanism is used for conveying a battery cell, the clamping and rotating mechanism is used for clamping the battery cell conveyed by the conveying mechanism and driving the battery cell to rotate, and the laser cleaning mechanism is used for carrying out laser cleaning on a shell of the battery cell clamped by the clamping and rotating mechanism. The conveying mechanism is used for conveying the battery cell, when the battery cell is conveyed to the position where the clamping and rotating mechanism is located, the clamping and rotating mechanism clamps the battery cell and drives the battery cell to rotate, laser emitted by the laser cleaning mechanism is used for carrying out laser cleaning on a shell of the battery cell, and laser cleaning is free of grinding, non-contact and heat effect. And harmful pollutants are not generated after cleaning, so that the battery cell can be cleaned more efficiently, and the production quality of the battery cell is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery manufacturing, in particular to a laser cleaning device for a battery core shell. Background Art

[0002] In the production process of power lithium batteries, it is necessary to coat the outer shell of the battery cell with protective materials to play the role of insulation, corrosion resistance and scratch resistance. At present, the main methods used are to form a protective layer on the outer shell of the battery cell by pasting a blue film, applying oil, spraying, etc. Before the above-mentioned processes of pasting a blue film, applying oil, spraying, etc., the surface of the battery cell shell must be cleaned to clean the dirt on the surface of the battery cell, roughen the surface of the battery cell, and improve the adhesion of the low-viscosity substrate. At present, the main cleaning methods of the battery cell shell include mechanical friction cleaning, chemical corrosion cleaning, high-frequency ultrasonic cleaning, plasma cleaning, etc., but the above methods have more or less damage to the surface of the battery cell, are not environmentally friendly, and easily cause secondary pollution to the battery cell. , etc., continue to improve. Utility Model Content

[0003] Based on this, it is necessary to address the technical problems that the current cleaning methods for battery cell shells include mechanical friction cleaning, chemical corrosion cleaning, high-frequency ultrasonic cleaning, plasma cleaning, etc., which all have shortcomings such as damaging the surface of the battery cell, being environmentally unfriendly, and easily causing secondary pollution to the battery cell. The utility model provides a laser cleaning device for battery cell shells.

[0004] The utility model provides a battery cell shell laser cleaning device, which comprises a conveying mechanism, a clamping and rotating mechanism and a laser cleaning mechanism; the conveying mechanism is used to convey the battery cell, the clamping and rotating mechanism is used to clamp the battery cell conveyed by the conveying mechanism and drive the battery cell to rotate, and the laser cleaning mechanism is used to laser clean the shell of the battery cell clamped by the clamping and rotating mechanism.

[0005] The utility model utilizes a conveying mechanism to convey the battery cell. When the battery cell is conveyed to the position of the clamping and rotating mechanism, the clamping and rotating mechanism clamps the battery cell and drives the battery cell to rotate. Then, the laser emitted by the laser cleaning mechanism performs laser cleaning on the battery cell shell. The laser cleaning is non-abrasive, non-contact, and has no thermal effect. It will not damage the battery cell and will not produce harmful pollutants after cleaning. The battery cell can be cleaned more efficiently and the production quality of the battery cell is improved.

[0006] As a further improvement of the above-mentioned scheme of the utility model, the conveying mechanism includes a conveying track and a plurality of battery cell trays, a plurality of magnetic levitation stators are arranged on the conveying track, the plurality of battery cell trays are all arranged on the conveying track and each battery cell tray is provided with a magnetic levitation mover which cooperates with the magnetic levitation stator to move the battery cell tray on the conveying track.

[0007] As a further improvement of the above-mentioned scheme of the utility model, the clamping and rotating mechanism includes a machine platform and a plurality of clamping members and a driving member installed on the machine platform; the plurality of clamping members are arranged in a straight line in sequence along the conveying direction of the conveying mechanism, the clamping members are used to clamp the battery cells, and the driving member is used to drive the battery cells clamped by the plurality of clamping members to rotate.

[0008] As a further improvement of the above scheme of the utility model, the clamping member includes two clamping plates, two telescopic cylinders, two rotating shafts and two flexible contour-matching chucks; the two clamping plates are arranged opposite to each other and are both slidably mounted on the machine platform; the telescopic ends of the two telescopic cylinders are respectively connected to the two clamping plates; the two rotating shafts are respectively rotatably mounted on the two clamping plates; the two flexible contour-matching chucks are relatively arranged between the two rotating shafts and are respectively connected to the two rotating shafts; wherein the conveying track passes through the two clamping plates of multiple clamping members in sequence.

[0009] As a further improvement of the above scheme of the utility model, the driving member includes a driving motor, a driving wheel, a driven wheel, a belt, multiple transmission wheels and multiple transmission belts; the driving motor is installed on the machine platform, the driving wheel is installed on the output shaft of the driving motor, the driven wheel is installed on a rotating shaft of one of the clamping members, and the belt is sleeved on the driving wheel and the driven wheel; the multiple transmission wheels are respectively installed on the remaining multiple rotating shafts, a transmission belt is arranged between any two adjacent clamping members, and the two adjacent transmission wheels are connected by the transmission belt.

[0010] As a further improvement of the above solution of the utility model, a slide groove is provided on the machine platform below each clamping plate, and a moving block connected to the clamping plate is slidably installed in the slide groove.

[0011] As a further improvement of the above-mentioned scheme of the utility model, the laser cleaning mechanism includes a gantry, a transverse moving part, a longitudinal moving part and a laser cleaning part. The gantry is installed on the machine platform, the transverse moving part is installed on the gantry, the longitudinal moving part is connected to the transverse moving part and is driven by the transverse moving part to move in the horizontal direction above multiple clamping parts; the laser cleaning part is connected to the longitudinal moving part and is driven by the longitudinal moving part to move up and down in the vertical direction.

[0012] As a further improvement of the above-mentioned scheme of the utility model, the transverse moving part includes a transverse guide rail, a linear motor and a transverse slider. The transverse guide rail is installed on the crossbeam of the gantry, and the transverse slider is slidably installed on the transverse guide rail. The linear motor drives the transverse slider to slide on the transverse guide rail, and hydraulic limiters are provided at both ends of the transverse guide rail to limit the transverse slider.

[0013] As a further improvement of the above-mentioned scheme of the utility model, the longitudinal moving part includes a mounting plate, a longitudinal guide rail, a longitudinal slider, a lead screw and a servo motor. The mounting plate is connected to the transverse slider and a position sensor is installed at the bottom end of the mounting plate. The longitudinal guide rail is installed on the mounting plate, and the longitudinal slider is slidably installed on the longitudinal guide rail. The lead screw is vertically rotatably installed on the mounting plate and is threadedly connected to the longitudinal slider. The servo motor is installed on the mounting plate and is transmission-connected to the lead screw.

[0014] As a further improvement of the above scheme of the utility model, the laser cleaning part includes a bearing platform and a laser emitter. The bearing platform is installed on the longitudinal slider and can move with the movement of the longitudinal slider. The laser emitter is installed on the bearing platform and a rubber gasket is provided at the installation position.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model utilizes a conveying mechanism to convey the battery cell. When the battery cell is conveyed to the position of the clamping and rotating mechanism, the clamping and rotating mechanism clamps the battery cell and drives the battery cell to rotate. Then, the laser emitted by the laser cleaning mechanism performs laser cleaning on the battery cell shell. The laser cleaning is non-abrasive, non-contact, and has no thermal effect. It will not damage the battery cell and will not produce harmful pollutants after cleaning. The battery cell can be cleaned more efficiently and the production quality of the battery cell is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure of a laser cleaning device for a battery cell casing proposed in an embodiment of the utility model;

[0018] Figure 2 A schematic diagram of the structure of a conveying mechanism and a clamping and rotating mechanism in a battery cell shell laser cleaning device proposed in an embodiment of the utility model;

[0019] Figure 3 This is another perspective view of a battery cell casing laser cleaning device proposed in an embodiment of the utility model.

[0020] Reference numerals:

[0021] 100, conveying mechanism; 110, conveying track; 120, battery cell tray; 130, magnetic suspension stator;

[0022] 200, clamping and rotating mechanism; 210, machine platform; 220, clamping plate; 230, telescopic cylinder; 240, rotating shaft; 250, flexible contour chuck; 260, driving motor; 270, belt; 280, transmission wheel; 290, transmission belt;

[0023] 300, laser cleaning mechanism; 310, gantry; 320, transverse guide rail; 330, linear motor; 340, transverse slider; 350, mounting plate; 360, longitudinal guide rail; 370, longitudinal slider; 380, lead screw; 390, servo motor; 3100, hydraulic limiter; 3110, position sensor; 3120, carrier platform; 3130, laser transmitter;

[0024] 400. Battery cell. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively in conjunction with specific embodiments below. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0027] Reference Figure 1 This embodiment proposes a battery cell shell laser cleaning device for cleaning the shell of a cylindrical battery cell 400400, including a conveying mechanism 100, a clamping and rotating mechanism 200 and a laser cleaning mechanism 300.

[0028] The conveying mechanism 100 is used to convey the cylindrical battery cells 400, and includes a conveying track 110 and a plurality of battery cell trays 120. A plurality of magnetic levitation stators 130 are arranged on the conveying track 110. The plurality of battery cell trays 120 are all arranged on the conveying track 110, and each battery cell tray 120 is provided with a magnetic levitation mover that cooperates with the magnetic levitation stator 130. Under the action of the magnetic levitation stator 130 and the magnetic levitation mover, the battery cell tray 120 can move along the conveying track 110. The top of the battery cell tray 120 is constructed into an arc-shaped bracket that is compatible with the cylindrical battery cell 400. The cylindrical battery cell 400 is placed in the arc-shaped bracket, and it can move with the movement of the battery cell tray 120. In this embodiment, the conveying track 110 is arranged in a linear type. Of course, in other embodiments, the conveying track 110 can also be arranged in an annular structure.

[0029] The clamping and rotating mechanism 200 is used to clamp the cylindrical battery cell 400 and drive the cylindrical battery cell 400 to rotate when the conveying mechanism 100 conveys the cylindrical battery cell 400 to its location. The clamping and rotating mechanism 200 includes a machine table 210 and a plurality of clamping members and a driving member installed on the machine table 210. The conveying track 110 is partially installed on the machine table 210, and a plurality of clamping members are arranged in a straight line on the machine table 210. The driving member is used to drive the cylindrical battery cell 400 clamped by the plurality of clamping members to rotate.

[0030] Combination Figure 2 Each clamping member includes two clamping plates 220, two telescopic cylinders 230, two rotating shafts 240 and two flexible profiling chucks 250. The two clamping plates 220 are arranged opposite to each other and are respectively located on both sides of the conveying track 110. A slideway perpendicular to the conveying track 110 is provided on the machine 210 below the clamping plates 220, and a moving block connected to the clamping plates 220 is slidably installed in the slideway. The two telescopic cylinders 230 are respectively located below the two clamping plates 220 and the telescopic ends of the two telescopic cylinders 230 are respectively connected to the two clamping plates 220. The telescopic cylinders 230 are respectively driven to move the corresponding clamping plates 220. The two rotating shafts 240 are respectively rotatably installed at the tops of the two clamping plates 220. The two flexible profiling chucks 250 are relatively arranged between the two rotating shafts 240 and are respectively connected to the two rotating shafts 240. The above structure of the clamping member is set up, when the conveying mechanism 100 conveys the battery cell to between the two clamping plates 220, the conveying mechanism 100 stops, the two ends of the battery cell correspond to the two flexible profiling clamps 250 respectively, the two telescopic cylinders 230 are started to drive the two clamping plates 220 to move respectively, and the two clamping plates 220 move closer to each other, so that the two flexible profiling clamps 250 clamp the cylindrical battery cell 400. In this embodiment, the end face of the flexible profiling clamp 250 is adapted to the end of the cylindrical battery cell 400, and the flexible profiling clamp 250 is detachably connected to the rotating shaft 240, so that the flexible profiling clamp 250 can be replaced to adapt to the clamping of different battery cells.

[0031] The driving member includes a driving motor 260, a driving wheel, a driven wheel, a belt 270, a plurality of transmission wheels 280 and a plurality of transmission belts 290. The driving motor 260 is mounted on the machine 210, the driving wheel is mounted on the output shaft of the driving motor 260, the driven wheel is mounted on a rotating shaft 240 of one of the clamping members, and the belt 270 is sleeved on the driving wheel and the driven wheel. The plurality of transmission wheels 280 are respectively mounted on the remaining plurality of rotating shafts 240, a transmission belt 290 is arranged between any two adjacent clamping members, and the two adjacent transmission wheels 280 are connected by the transmission belt 290. The driving member is arranged by the above structure, when the driving motor 260 is started, the driving motor 260 drives the driving wheel to rotate, the driving wheel drives the driven wheel to rotate through the belt 270, and the driven wheel drives the rotating shaft 240 connected thereto to rotate, thereby driving the cylindrical battery cell 400 to rotate.

[0032] The laser cleaning mechanism 300 is used to sequentially laser clean the outer shells of the cylindrical battery cells 400 clamped by the plurality of clamping members. Figure 3The laser cleaning mechanism 300 includes a gantry 310, a transverse moving part, a longitudinal moving part and a laser cleaning part. The gantry 310 is installed on the machine table 210. The transverse moving part is installed on the gantry 310, and the transverse moving part includes a transverse guide rail 320, a linear motor 330 and a transverse slider 340. The transverse guide rail 320 is installed on the crossbeam of the gantry 310, and the transverse slider 340 is slidably installed on the transverse guide rail 320. The linear motor 330 drives the transverse slider 340 to slide on the transverse guide rail 320. Both ends of the transverse guide rail 320 are provided with hydraulic limiters 3100 for limiting the transverse slider 340. The longitudinal moving member is connected to the transverse moving member and is driven by the transverse moving member to move horizontally above multiple clamping members. In this embodiment, the longitudinal moving member includes a mounting plate 350, a longitudinal guide rail 360, a longitudinal slider 370, a lead screw 380 and a servo motor 390. The mounting plate 350 is connected to the transverse slider 340 and a position sensor 3110 is installed at the bottom end of the mounting plate 350. The longitudinal guide rail 360 is installed on the mounting plate 350, and the longitudinal slider 370 is slidably installed on the longitudinal guide rail 360. The lead screw 380 is vertically rotatably installed on the mounting plate 350 and is threadedly connected to the longitudinal slider 370. The servo motor 390 is installed on the mounting plate 350 and is transmission-connected to the lead screw 380. The laser cleaning part is connected to the longitudinal moving part and driven by the longitudinal moving part to move up and down in the vertical direction. The laser cleaning part includes a bearing platform 3120 and a laser emitter 3130. The bearing platform 3120 is installed on the longitudinal slider 370 and can move with the movement of the longitudinal slider 370. The laser emitter 3130 is installed on the bearing platform 3120 and a rubber gasket is provided at the installation position. The rubber gasket can play a buffering and protective role in the process of up and down movement to protect the laser emitter 3130. In this embodiment, the laser emitter 3130 adopts the existing technology, which includes a laser generator, a scanning galvanometer, a collimator lens group and a field lens. The laser generator emits a laser beam. The collimator lens group is used to adjust the divergent laser beam into a parallel and concentrated collimated beam to ensure that the laser beam maintains a consistent diameter and direction during the propagation process, thereby improving the quality of the laser beam; the scanning galvanometer is used to adjust the refraction angle of the laser beam to change the direction of the laser beam. The laser beam passes through the collimator lens group and the scanning galvanometer and reaches the field lens. The range of one field lens covers the circumference of three battery cells.

[0033] Next, the working principle of this embodiment is described:

[0034] The conveying mechanism 100 conveys the cylindrical battery cells 400. When there are cylindrical battery cells 400 to be cleaned between the two flexible contoured chucks 250 of each clamping member, the conveying mechanism 100 is suspended; the two telescopic cylinders 230 of each clamping member are started to drive the two flexible contoured chucks 250 to clamp the cylindrical battery cells 400 close to each other; then the driving motor 260 is started to drive the multiple cylindrical battery cells 400 to rotate; at this time, the laser emitter 3130 is just above the three outermost cylindrical battery cells 400, and the three battery cells are within the range of the field mirror; then the servo motor 390 is started to drive the lead screw 380 to rotate, driving the laser emitter 3130 to descend, and when the position sensor 3110 detects that the laser emitter 3130 has reached the specified position, the servo motor 390 stops, and the laser The transmitter 3130 emits a laser to perform laser cleaning on the outer shell of a cylindrical battery cell 400 within the range of a field mirror; after cleaning the cylindrical battery cell 400 within the range of a field mirror; the linear motor 330 starts to drive the laser generator to move horizontally to clean the next three cylindrical battery cells 400; after cleaning is completed, the laser transmitter 3130 is turned off, and the servo motor 390 drives the lead screw 380 to rotate in the opposite direction to drive the laser transmitter 3130 to reset, and then the linear motor 330 drives the laser transmitter 3130 to move horizontally to reset; the telescopic cylinder 230 drives the clamping plate 220 to move so that the flexible contoured chuck 250 releases the cylindrical battery cell 400, and the cylindrical battery cell 400 naturally falls onto the battery cell tray 120, and the conveying mechanism 100 starts to drive the cleaned battery cell to the next workstation.

[0035] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0036] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A laser cleaning device for a battery cell casing, characterized in that: It comprises a conveying mechanism (100), a clamping and rotating mechanism (200) and a laser cleaning mechanism (300); the conveying mechanism (100) is used to convey the battery cell (400), the clamping and rotating mechanism (200) is used to clamp the battery cell (400) conveyed by the conveying mechanism (100) and drive the battery cell to rotate, and the laser cleaning mechanism (300) is used to perform laser cleaning on the outer shell of the battery cell (400) clamped by the clamping and rotating mechanism (200).

2. The battery cell shell laser cleaning device according to claim 1, characterized in that: The conveying mechanism (100) comprises a conveying track (110) and a plurality of battery trays (120); a plurality of magnetic suspension stators (130) are arranged on the conveying track (110); the plurality of battery trays (120) are all arranged on the conveying track (110); and each battery tray (120) is provided with a magnetic suspension mover that cooperates with the magnetic suspension stator (130) to move the battery tray (120) on the conveying track (110).

3. The battery cell shell laser cleaning device according to claim 2, characterized in that: The clamping and rotating mechanism (200) comprises a machine platform (210) and a plurality of clamping members and a driving member mounted on the machine platform (210); the plurality of clamping members are arranged in sequence in a straight line along the conveying direction of the conveying mechanism (100); the clamping members are used to clamp the battery cells; and the driving member is used to drive the battery cells (400) clamped by the plurality of clamping members to rotate.

4. The battery cell shell laser cleaning device according to claim 3, characterized in that: The clamping member comprises two clamping plates (220), two telescopic cylinders (230), two rotating shafts (240) and two flexible profiling chucks (250); the two clamping plates (220) are arranged opposite to each other and are both slidably mounted on the machine platform (210); the telescopic ends of the two telescopic cylinders (230) are respectively connected to the two clamping plates (220); the two rotating shafts (240) are respectively rotatably mounted on the two clamping plates (220); the two flexible profiling chucks (250) are arranged opposite to each other between the two rotating shafts (240) and are respectively connected to the two rotating shafts (240); wherein the conveying track (110) sequentially passes between the two clamping plates (220) of the plurality of clamping members.

5. The battery cell shell laser cleaning device according to claim 4, characterized in that: The driving member comprises a driving motor (260), a driving wheel, a driven wheel, a belt (270), a plurality of transmission wheels (280) and a plurality of transmission belts (290); the driving motor (260) is mounted on the machine platform (210), the driving wheel is mounted on the output shaft of the driving motor (260), the driven wheel is mounted on a rotating shaft (240) of one of the clamping members, and the belt (270) is sleeved on the driving wheel and the driven wheel; the plurality of transmission wheels (280) are respectively mounted on the remaining plurality of rotating shafts (240), a transmission belt (290) is provided between any two adjacent clamping members, and the two adjacent transmission wheels (280) are connected via the transmission belt (290).

6. The battery cell shell laser cleaning device according to claim 4, characterized in that: A slide groove is provided on the machine platform (210) below each clamping plate (220), and a moving block (400) connected to the clamping plate (220) is slidably installed in the slide groove.

7. The battery cell shell laser cleaning device according to claim 3, characterized in that: The laser cleaning mechanism (300) comprises a gantry (310), a transverse moving member, a longitudinal moving member and a laser cleaning member. The gantry (310) is mounted on a machine platform (210). The transverse moving member is mounted on the gantry (310). The longitudinal moving member is connected to the transverse moving member and driven by the transverse moving member to move in a horizontal direction above the plurality of clamping members. The laser cleaning member is connected to the longitudinal moving member and driven by the longitudinal moving member to move up and down in a vertical direction.

8. The battery cell shell laser cleaning device according to claim 7, characterized in that: The transverse moving member comprises a transverse guide rail (320), a linear motor (330) and a transverse slider (340); the transverse guide rail (320) is mounted on a crossbeam of a gantry (310); the transverse slider (340) is slidably mounted on the transverse guide rail (320); the linear motor (330) drives the transverse slider (340) to slide on the transverse guide rail (320); and hydraulic limiters (3100) for limiting the transverse slider (340) are provided at both ends of the transverse guide rail (320).

9. The battery cell shell laser cleaning device according to claim 8, characterized in that: The longitudinal moving member comprises a mounting plate (350), a longitudinal guide rail (360), a longitudinal slider (370), a lead screw (380) and a servo motor (390); the mounting plate (350) is connected to the transverse slider (340) and a position sensor (3110) is installed at the bottom end of the mounting plate (350); the longitudinal guide rail (360) is installed on the mounting plate (350); the longitudinal slider (370) is slidably installed on the longitudinal guide rail (360); the lead screw (380) is vertically rotatably installed on the mounting plate (350) and is threadedly connected to the longitudinal slider (370); and the servo motor (390) is installed on the mounting plate (350) and is transmission-connected to the lead screw (380).

10. The battery cell shell laser cleaning device according to claim 9, characterized in that: The laser cleaning component comprises a carrier platform (3120) and a laser emitter (3130); the carrier platform (3120) is mounted on a longitudinal slider (370) and can move along with the movement of the longitudinal slider (370); the laser emitter (3130) is mounted on the carrier platform (3120) and a rubber gasket is provided at the mounting position.

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