Battery cell surface laser cleaning line and laser cleaning method

Abstract

The invention relates to the technical field of battery module assembly, in particular to a battery cell surface laser cleaning line and a laser cleaning method.The battery cell surface laser cleaning line comprises a main conveying line, a conveying trolley, a polar column surface texturing mechanism, a turnover mechanism, a narrow surface texturing mechanism, a bottom surface texturing mechanism, a wide surface texturing mechanism, a first guide plate and a second guide plate; the conveying trolley comprises a bottom frame movably installed on the main conveying line, a carrier arranged over the bottom frame, a rotating assembly installed in the middle of the top end of the bottom frame, side protection plates arranged on the front side and the rear side of the carrier in a mirror image mode, and a lifting assembly installed at the bottom of the carrier. The first guide plate is mounted on the rear side of the main conveying line and transversely extends between the polar cylindrical surface texturing mechanism and the bottom surface texturing mechanism so as to drive the rotating assembly to rotate, and the second guide plate is mounted on the front side of the main conveying line and transversely extends in the wide surface texturing mechanism so as to drive the lifting assembly to ascend and descend; the device is simple in structural design and process steps, low in input cost and automatic in the whole process, and the cleaning quality can be guaranteed and stable.

Description

Technical Field

[0001] The present invention relates to the technical field of battery module assembly, and in particular to a battery cell surface laser cleaning line and a laser cleaning method. Background Art

[0002] In the production and assembly process of battery modules, the process of painting (insulating protective paint) of battery cells is involved. Before painting the battery cells, the surface of the battery cells needs to be cleaned to ensure the efficiency and quality of subsequent painting.

[0003] Traditional cleaning methods are mainly implemented through manual operation, which is time-consuming and labor-intensive, and the stability of cleaning quality is poor. At present, there are cleaning systems on the market that realize automatic cleaning of the surface of battery cells. For example, the invention patent with the publication (announcement) number CN118142976B discloses a battery cell laser cleaning system, which mainly realizes laser roughening of each surface of the battery cell through the first ring line 100, the second ring line 200 and the transfer line 300. Due to the design of the three lines, the cost investment is relatively high, and the transfer of the battery cell between the first ring line 100, the second ring line 200 and the transfer line 300 needs to be realized by the transfer and loading mechanism 1100, the number of handling times is large, and the process steps are relatively complicated. Summary of the invention

[0004] The technical problem to be solved by the present invention is: to overcome the deficiencies in the prior art and to provide a laser cleaning line and a laser cleaning method for the surface of a battery cell with simple structural design and process steps, low investment cost, full automation, and guaranteed and stable cleaning quality.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a battery surface laser cleaning line, including a main conveying line extending laterally, a plurality of conveying trolleys installed on the main conveying line and conveyed by the main conveying line, and a pole surface texturing mechanism, a turning mechanism, a narrow surface texturing mechanism, a bottom surface texturing mechanism and a wide surface texturing mechanism arranged in sequence along the conveying direction of the main conveying line; the conveying trolley includes

[0006] The chassis is movably installed on the main conveyor line.

[0007] The carrier is arranged directly above the chassis.

[0008] The rotating assembly is installed at the middle of the top end of the chassis, and its top end is connected to the middle of the bottom end of the carrier.

[0009] Side guards, mirrored on the front and rear sides of the vehicle,

[0010] A lifting assembly is installed at the bottom of the vehicle, and the top end of the lifting assembly is connected to the outer side of the side guard plate;

[0011] Also includes

[0012] The first guide plate is installed at the rear side of the main conveyor line and extends laterally between the pole surface texturing mechanism and the bottom surface texturing mechanism to drive the rotating assembly to rotate.

[0013] And a second guide plate is installed on the front side of the main conveying line and extends laterally in the wide-surface texturing mechanism to drive the lifting component to rise and fall.

[0014] Furthermore, the rotating assembly includes a bearing seat, a rotating shaft, a gear, a rack, a rotating follower and a rotating spring. The bearing seat is installed in the middle of the top end of the base frame. The rotating shaft passes through the bearing seat and rotates with the bearing seat. The top of the rotating shaft is connected to the middle of the bottom end of the carrier, and its bottom is connected to the gear. The rack is slidably installed on the top of the base frame through a guide rail and meshes with the gear. The rack and the guide rail are both longitudinally arranged, and the rear end of the guide rail extends out of the base frame. The rotating follower is installed at the rear end of the guide rail. The rotating springs are respectively arranged on the gear On the left and right sides of the wheel, one end of the rotating spring is connected to the gear, and the other end is connected to the base frame; the lifting assembly includes a slider, a lifting rod, a lifting follower and a lifting spring, the sliders are slidably installed on the left and right ends of the bottom of the vehicle, the lifting rods are vertically installed on the front and rear ends of the slider, and the top ends thereof are connected to the outer side of the side guard plate, the lifting follower is installed at the front end of the slider, the lifting springs are respectively arranged on the left and right ends of the front side of the vehicle, one end of the lifting spring is connected to the vehicle, and the other end thereof is connected to the bottom end of the lifting rod.

[0015] Furthermore, the cylindrical surface texturing mechanism includes a first gantry, a first X-axis module, a first Z-axis module, a first laser galvanometer assembly, a first dust extraction pipe, a first ranging sensor and a first laser power assembly. The first gantry is arranged on the rear side of the main conveyor line, the first X-axis module is horizontally installed on the top of the first gantry, the first Z-axis module is vertically installed on the slide of the first X-axis module, the first laser galvanometer assembly is vertically installed on the slide of the first Z-axis module, the first dust extraction pipe is installed on the slide of the first X-axis module, and its pipe mouth corresponds to the battery cell, the first ranging sensor is arranged next to the first laser galvanometer assembly, and the first laser power assembly is arranged on the front side of the main conveyor line.

[0016] Furthermore, the flipping mechanism includes a vertical frame, a second Z-axis module, a flipping motor and a clamping air claw. The vertical frame is arranged on the front side of the main conveyor line, the second Z-axis module is vertically installed on the top rear side of the vertical frame, the flipping motor is longitudinally installed on the slide of the second Z-axis module, and the clamping air claw is longitudinally installed at the output end of the flipping motor.

[0017] Furthermore, the narrow surface texturing mechanism and the wide surface texturing mechanism both include a second Y-axis module, a frame, a second laser galvanometer assembly, a second dust extraction pipe, a second ranging sensor, a light blocking assembly and a second laser power assembly. The second Y-axis module is longitudinally arranged on one side of the main conveyor line, the second laser galvanometer assembly is longitudinally installed on the slide of the second Y-axis module through the frame, the second dust extraction pipe is installed on the frame, and its pipe mouth corresponds to the battery cell, the second ranging sensor is arranged next to the second laser galvanometer assembly, the light blocking assembly is arranged on the other side of the main conveyor line and corresponds to the second laser galvanometer assembly, and the second laser power assembly is arranged between the main conveyor line and the light blocking assembly.

[0018] Furthermore, the bottom surface texturing mechanism includes a third gantry, a third Z-direction module, a third laser galvanometer assembly, a third dust extraction pipe, a third ranging sensor and a third laser power assembly. The third gantry is arranged across the main conveyor line, the third Z-direction module is vertically installed in the middle of the top end of the third gantry, the third laser galvanometer assembly is vertically installed on the slide of the third Z-direction module, the third dust extraction pipe is installed at the top end of the third gantry, and its pipe mouth corresponds to the battery cell, the third ranging sensor is arranged next to the third laser galvanometer assembly, and the third laser power assembly is arranged on the front side of the main conveyor line.

[0019] Furthermore, the left and right ends of the front side surface of the first guide plate are respectively first inclined surfaces, and the two first inclined surfaces form an eight-shaped shape; the left and right ends of the bottom surface of the second guide plate are respectively second inclined surfaces, and the two second inclined surfaces form an eight-shaped shape.

[0020] Furthermore, it also includes an incoming material conveyor line, a loading material handling mechanism, a removing material conveyor line, a unloading material handling mechanism and a return flow conveyor line, the incoming material conveyor line is arranged in parallel on the front side of the left part of the main conveyor line, the loading material handling mechanism is arranged astride the main conveyor line and the incoming material conveyor line, the removing material conveyor line is arranged in parallel on the front side of the right part of the main conveyor line, the unloading material handling mechanism is arranged astride the main conveyor line and the removing material conveyor line, and the return flow conveyor line is respectively connected to the left and right ends of the main conveyor line.

[0021] Furthermore, the loading and unloading conveying mechanism and the unloading and unloading conveying mechanism both include a fourth gantry, a fourth Y-axis module, a fourth Z-axis module, a T-frame, a clamping cylinder and an insulating splint. The fourth gantry in the loading and unloading conveying mechanism is arranged across the main conveying line and the incoming material conveying line, and the fourth gantry in the unloading and unloading conveying mechanism is arranged across the main conveying line and the outgoing material conveying line. The fourth Y-axis module is longitudinally installed on the top of the fourth gantry, the fourth Z-axis module is vertically installed on the slide of the fourth Y-axis module, the T-frame is vertically installed on the slide of the fourth Z-axis module, the clamping cylinders are respectively installed on the left and right ends of the bottom of the T-frame, and the insulating splints are relatively installed on the two driving ends of the clamping cylinders.

[0022] A laser cleaning method based on the above-mentioned battery cell surface laser cleaning line, the specific steps are as follows:

[0023] S1. The pole surface texturing mechanism performs laser cleaning on the pole surface of the battery cell;

[0024] S2. The first guide plate drives the rotating assembly to rotate the battery cell 90° clockwise, the flipping mechanism flips the rotated battery cell 180°, and the narrow surface texturing mechanism performs laser cleaning on the narrow surface of the battery cell;

[0025] S3. The first guide plate releases the rotating assembly so that the battery cell rotates 90° counterclockwise to reset, and the bottom surface texturing mechanism performs laser cleaning on the bottom surface of the battery cell;

[0026] S4. The second guide plate drives the lifting assembly to make the side guard plate drop down to avoid, and the wide surface texturing mechanism performs laser cleaning on the wide surface of the battery cell;

[0027] S5. The second guide plate releases the lifting assembly so that the side guard plate rises and returns to its original position.

[0028] The beneficial effects of the present invention are:

[0029] (1) The present invention drives a conveyor trolley through a main conveyor line, so that the battery cells carried by the conveyor trolley pass through the pole surface texturing mechanism, the turning mechanism, the narrow surface texturing mechanism, the bottom surface texturing mechanism and the wide surface texturing mechanism in sequence, thereby realizing laser cleaning of various surfaces of the battery cells without the need to transport the battery cells. The structural design and process steps are simple, which significantly reduces the cost investment. The whole process is automated, and the cleaning quality can be guaranteed and stable.

[0030] (2) The present invention automatically changes the posture of the battery cell by cooperating with the rotating component and the first guide plate, so that the narrow surface texturing mechanism can perform laser cleaning on the narrow surface of the battery cell, without the need to separately set up a wire body to perform laser cleaning on the narrow surface of the battery cell. In addition, by combining the cooperating arrangement of the lifting component and the second guide plate, when the wide surface texturing mechanism performs laser cleaning on the wide surface of the battery cell, interference from the side guard plate is avoided, thereby ensuring the cleaning quality of the wide surface of the battery cell.

[0031] (3) The present invention provides a return conveyor line so that the conveyor trolleys on the main conveyor line can be recycled, thereby increasing the utilization rate of the conveyor trolleys and reducing the investment in the conveyor trolleys. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0033] Figure 1 It is a schematic diagram of the structure of the present invention;

[0034] Figure 2 is a top view of the present invention;

[0035] Figure 3 is a schematic diagram of a first guide plate in the present invention;

[0036] Figure 4 is a schematic diagram of the second guide plate in the present invention;

[0037] Figure 5 It is a schematic diagram of the loading and handling mechanism of the present invention;

[0038] Figure 6 It is a schematic diagram of the conveying trolley in the present invention;

[0039] Figure 7 is a schematic diagram of a rotating assembly in the present invention;

[0040] Figure 8 is a schematic diagram of a stator motor in the present invention;

[0041] Fig. 9 It is a schematic diagram of the limit bolt in the present invention;

[0042] Fig.10 is a schematic diagram of the vehicle in the present invention;

[0043] Fig.11 It is a schematic diagram of the polar column surface texturing mechanism in the present invention;

[0044] Fig.12 is a schematic diagram of the first laser galvanometer assembly in the present invention;

[0045] Fig.13 is a schematic diagram of the flipping mechanism in the present invention;

[0046] Fig.14 It is a schematic diagram of the narrow surface texturing mechanism of the present invention;

[0047] Fig.15 is a schematic diagram of the second laser galvanometer assembly in the present invention;

[0048] Fig.16 Schematic diagram of the bottom surface texturing mechanism of the present invention;

[0049] Fig.17 It is a schematic diagram of the third laser galvanometer assembly in the present invention.

[0050] In the figure: 100, main conveyor line; 110, stator motor; 120, mover magnetic plate; 200, conveyor trolley; 210, chassis; 220, carrier; 221, groove; 230, rotating assembly; 231, bearing seat; 232, rotating shaft; 233, gear; 234, rack; 235, rotating follower; 236, rotating spring; 237, guide rail; 238, limit bolt; 239, limit block; 240, side guard plate; 250, lifting assembly; 251, slider; 252, Lifting rod; 253, lifting follower; 254, lifting spring; 300, cylindrical surface texturing mechanism; 310, first gantry; 320, first X-axis module; 330, first Z-axis module; 340, first laser galvanometer assembly; 350, first dust extraction pipeline; 360, first distance measuring sensor; 370, first laser power assembly; 400, flipping mechanism; 410, stand; 420, second Z-axis module; 430, flipping motor; 440, clamping air claw; 500, narrow surface texturing Mechanism; 510, second Y-axis module; 520, frame; 530, second laser galvanometer assembly; 540, second dust extraction pipeline; 550, second distance sensor; 560, light shielding assembly; 570, second laser power assembly; 600, bottom surface texturing mechanism; 610, third gantry; 620, third Z-axis module; 630, third laser galvanometer assembly; 640, third dust extraction pipeline; 650, third distance sensor; 660, third laser power assembly; 700, wide surface texturing machine Structure; 800, first guide plate; 810, first inclined plane; 900, second guide plate; 910, second inclined plane; 1000, incoming material conveyor line; 1100, loading and handling mechanism; 1110, fourth gantry; 1120, fourth Y-axis module; 1130, fourth Z-axis module; 1140, T-frame; 1150, clamping claw cylinder; 1160, insulating splint; 1200, removing material conveyor line; 1300, unloading and handling mechanism; 1400, reflux conveyor line; 1500, barcode scanner. DETAILED DESCRIPTION

[0051] The present invention will now be further described in conjunction with the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0052] Example 1

[0053] like Figure 1-Figure 4 , Figure 6As shown, a cell surface laser cleaning line comprises a transversely extending main conveyor line 100, a plurality of conveyor carriages 200 installed on the main conveyor line 100 and conveyed by the main conveyor line 100, and a pole surface texturing mechanism 300, a turning mechanism 400, a narrow surface texturing mechanism 500, a bottom surface texturing mechanism 600 and a wide surface texturing mechanism 700 sequentially arranged along the conveying direction of the main conveyor line 100; the conveyor carriage 200 comprises a base frame 210, a carrier 220, a rotating assembly 230, a side guard plate 240 and a lifting assembly 250, the base frame 210 is movably installed on the main conveyor line 100, the carrier 220 is arranged directly above the base frame 210, and the rotating assembly 230 is installed on the bottom The top of the frame 210 is connected to the middle of the bottom of the carrier 220, the side guard plates 240 are mirror-imaged on the front and rear sides of the carrier 220, the lifting assembly 250 is installed at the bottom of the carrier 220, and the top of the lifting assembly 250 is connected to the outer side of the side guard plates 240; it also includes a first guide plate 800 and a second guide plate 900, the first guide plate 800 is installed on the rear side of the main conveyor line 100, and extends laterally between the pole surface texturing mechanism 300 and the bottom surface texturing mechanism 600 to drive the rotating assembly 230 to rotate, and the second guide plate 900 is installed on the front side of the main conveyor line 100, and extends laterally in the wide surface texturing mechanism 700 to drive the lifting assembly 250 to rise and fall. The conveyor trolley 200 is driven by a main conveyor line 100, so that the battery cell carried by the conveyor trolley 200 passes through the pole surface texturing mechanism 300, the turning mechanism 400, the narrow surface texturing mechanism 500, the bottom surface texturing mechanism 600 and the wide surface texturing mechanism 700 in sequence, that is, the laser cleaning of each surface of the battery cell is realized, and there is no need to move the battery cell. The structural design and process steps are simple, which significantly reduces the cost investment. The whole process is automated, and the cleaning quality can be guaranteed and stable. At the same time, through the coordinated setting of the rotating component 230 and the first guide plate 800, the posture of the battery cell is automatically changed, so that the narrow surface texturing mechanism 500 can perform laser cleaning on the narrow surface of the battery cell, without the need to set up a separate line body for laser cleaning the narrow surface of the battery cell, and combined with the coordinated setting of the lifting component 250 and the second guide plate 900, when the wide surface texturing mechanism 700 performs laser cleaning on the wide surface of the battery cell, the interference of the side guard plate 240 is avoided, thereby ensuring the cleaning quality of the wide surface of the battery cell. The side guard plates 240 on the front and rear sides of the carrier 220 limit the battery cells so that the battery cells are accurately positioned on the carrier 220, thereby ensuring accurate cleaning of the subsequent pole surface.

[0054] Specifically, Figure 8 and Fig.10As shown, the main conveyor line 100 adopts a straight magnetic suspension line, including a stator motor 110 and a mover magnetic plate 120. The mover magnetic plate 120 is installed at the bottom end of the base frame 210. The front and rear sides of the bottom of the base frame 210 are respectively connected to the main conveyor line 100 in a rolling manner. This is a prior art and will not be described in detail here. A groove 221 is provided at the top of the carrier 220 to avoid the pole of the flipped battery cell. The flip mechanism 400 is divided into two groups, which are arranged in parallel at intervals. The narrow surface texturing mechanism 500 is Two groups are arranged in parallel with each other at intervals, and laser texturing is performed on the narrow surface of the battery cell respectively; the wide surface texturing mechanism 700 consists of four groups, which are arranged in parallel with each other at intervals, and two groups correspond to the laser texturing of the wide surface of a battery cell; the left and right ends of the front side surface of the first guide plate 800 are respectively the first inclined surfaces 810, and the middle part is a straight surface, and the two first inclined surfaces 810 form an eight-shaped shape; the left and right ends of the bottom surface of the second guide plate 900 are respectively the second inclined surfaces 910, and the middle part is a straight surface, and the two second inclined surfaces 910 form an eight-shaped shape.

[0055] like Figure 6 , Figure 7 and Fig. 9As shown, the rotating assembly 230 includes a bearing seat 231, a rotating shaft 232, a gear 233, a rack 234, a rotating follower 235 and a rotating spring 236. The bearing seat 231 is installed in the middle of the top end of the base frame 210. The rotating shaft 232 passes through the bearing seat 231 and rotates with the bearing seat 231. The top of the rotating shaft 232 is connected to the middle of the bottom end of the carrier 220, and its bottom end is connected to the gear 233. The rack 234 is slidably installed on the top end of the base frame 210 through a guide rail 237 and meshes with the gear 233. The rack 234 and the guide rail 237 are both longitudinally arranged, and the rear end of the guide rail 237 extends out of the base frame 210. The rotating follower 235 is installed at the rear end of the guide rail 237. The rotating spring 236 is respectively arranged on the left and right sides of the gear 233. One end of the rotating spring 236 is connected to the gear 233, and the other end thereof is connected to the base frame 210. Specifically, a limiting bolt 238 is installed on the top of the base frame 210, and a limiting block 239 corresponding to the limiting bolt 238 is installed on the carrier 220. The limiting bolt 238 and the limiting block 239 cooperate to ensure accurate resetting of the carrier 220. When the main conveyor line 100 conveys the conveying trolley 200 to the left end of the first guide plate 800, the rotary follower 235 contacts the first inclined surface 810 at the left end of the first guide plate 800 and rolls along the first inclined surface 810. In this process, the guide rail 237 is forced to move longitudinally, thereby synchronously driving the rack 234 to move longitudinally. Due to the meshing of the rack 234 and the gear 233, the linear motion of the rack 234 is converted into the clockwise rotation of the gear 233, and then the carrier 220 is driven to rotate through the rotating shaft 232 until the rotary follower 235 comes to the straight surface, and the carrier 220 just rotates 90° clockwise, and the battery cell rotates 90° at this time; when the rotary follower 235 comes to the first inclined surface 810 at the right end of the first guide plate 800, the gear 233 is pulled counterclockwise to reset under the action of the rotating spring 236, that is, the carrier 220 rotates to reset.

[0056] like Figure 6 and Figure 7As shown, the lifting assembly 250 includes a slider 251, a lifting rod 252, a lifting follower 253 and a lifting spring 254. The slider 251 is slidably installed at the left and right ends of the bottom of the carrier 220, respectively. The lifting rod 252 is vertically installed at the front and rear ends of the slider 251, and the top end thereof is connected to the outer side of the side guard plate 240. The lifting follower 253 is installed at the front end of the slider 251. The lifting spring 254 is respectively arranged at the left and right ends of the front side of the carrier 220, one end of the lifting spring 254 is connected to the carrier 220, and the other end thereof is connected to the bottom end of the lifting rod 252. When the main conveyor line 100 transports the conveying cart 200 to the left end of the second guide plate 900, the lifting follower 253 contacts the second inclined surface 910 at the left end of the second guide plate 900 and rolls along the second inclined surface 910. In this process, the slider 251 is forced to move vertically downward, thereby synchronously driving the lifting rod 252 to descend vertically until the side guard plate 240 no longer contacts the wide surface of the battery cell; when the lifting follower 253 reaches the second inclined surface 910 at the right end of the second guide plate 900, the lifting spring 254 pulls the lifting rod 252 to move vertically upward, thereby synchronously driving the lifting rod 252 to rise vertically and reset, thereby re-positioning the battery cell protection.

[0057] like Fig.11 and Fig.12As shown, the cylindrical surface texturing mechanism 300 includes a first gantry 310, a first X-axis module 320, a first Z-axis module 330, a first laser galvanometer assembly 340, a first dust extraction pipe 350, a first distance sensor 360 and a first laser power assembly 370. The first gantry 310 is arranged at the rear side of the main conveying line 100, the first X-axis module 320 is horizontally installed at the top of the first gantry 310, the first Z-axis module 330 is vertically installed on the slide of the first X-axis module 320, the first laser galvanometer assembly 340 is vertically installed on the slide of the first Z-axis module 330, the first dust extraction pipe 350 is installed on the slide of the first X-axis module 320, and its pipe mouth corresponds to the battery cell, the first distance sensor 360 is arranged beside the first laser galvanometer assembly 340, and the first laser power assembly 370 is arranged at the front side of the main conveying line 100. The arrangement of the first Z-axis module 330 adjusts the laser focus position and the coverage area to be compatible with batteries of different specifications. The first laser power component 370 is used to regularly detect the laser attenuation of the first laser galvanometer component 340. Specifically, the first X-axis module 320 and the first Z-axis module 330 are both linear modules; the first laser galvanometer component 340 is arranged directly above the main conveyor line 100, and the first laser galvanometer component 340 adopts TRUMPF laser with a power of 2 kW; the first laser power component 370 includes a vertical plate, a cylinder and a power meter, the vertical plate is arranged at the front side of the main conveyor line 100, the cylinder is longitudinally installed at the top of the vertical plate, and the power meter is installed at the driving end of the cylinder. The pole surface is divided into two areas during cleaning, and the first X-axis module 320 drives the first laser galvanometer component 340 to move horizontally to achieve laser roughening in the two areas.

[0058] like Fig.13 As shown, the flip mechanism 400 includes a stand 410, a second Z-direction module 420, a flip motor 430, and a clamping claw 440. The stand 410 is arranged at the front side of the main conveyor line 100, the second Z-direction module 420 is vertically installed at the top rear side of the stand 410, the flip motor 430 is longitudinally installed on the slide of the second Z-direction module 420, and the clamping claw 440 is longitudinally installed at the output end of the flip motor 430. The second Z-direction module 420 drives the flip motor 430 to descend, and after the clamping claw 440 clamps the battery cell, the second Z-direction module 420 drives the flip motor 430 to rise, and the flip motor 430 drives the clamping claw 440 to rotate so that the battery cell flips 180°, so that the pole of the battery cell faces downward.

[0059] like Fig.14 and Fig.15As shown, the narrow surface texturing mechanism 500 and the wide surface texturing mechanism 700 both include a second Y-axis module 510, a frame 520, a second laser galvanometer assembly 530, a second dust extraction pipe 540, a second distance sensor 550, a light shielding assembly 560 and a second laser power assembly 570. The second Y-axis module 510 is longitudinally arranged on one side of the main conveying line 100. The second laser galvanometer assembly 530 is longitudinally installed on the slide of the second Y-axis module 510 through the frame 520. The second dust extraction pipe 540 is installed on the frame 520, and its pipe mouth corresponds to the battery cell. The second distance sensor 550 is arranged beside the second laser galvanometer assembly 530. The light shielding assembly 560 is arranged on the other side of the main conveying line 100 and corresponds to the second laser galvanometer assembly 530. The second laser power assembly 570 is arranged between the main conveying line 100 and the light shielding assembly 560. The light shielding assembly 560 is arranged to shield the laser horizontally emitted by the second laser galvanometer assembly 530 to prevent the laser from affecting the surrounding equipment. Specifically, the light blocking component 560 is a prior art; the structural difference between the second laser power component 570 and the first laser power component 370 is that the cylinder is vertically installed on the top of the vertical plate.

[0060] like Fig.16 and Fig.17 As shown, the bottom surface texturing mechanism 600 includes a third gantry 610, a third Z-direction module 620, a third laser galvanometer assembly 630, a third dust extraction pipe 640, a third distance measuring sensor 650 and a third laser power assembly 660. The third gantry 610 is arranged across the main conveying line 100, the third Z-direction module 620 is vertically installed at the middle of the top of the third gantry 610, the third laser galvanometer assembly 630 is vertically installed on the slide of the third Z-direction module 620, the third dust extraction pipe 640 is installed at the top of the third gantry 610, and its pipe mouth corresponds to the battery cell, the third distance measuring sensor 650 is arranged beside the third laser galvanometer assembly 630, and the third laser power assembly 660 is arranged at the front side of the main conveying line 100. Specifically, the third laser galvanometer assembly 630 is arranged directly above the main conveying line 100; the third laser power assembly 660 has the same structure as the first laser power assembly 370.

[0061] like Figure 1As shown, the cell surface laser cleaning line also includes an incoming material conveying line 1000, a loading and transporting mechanism 1100, a material removal conveying line 1200, a material removal conveying mechanism 1300 and a return conveying line 1400. The incoming material conveying line 1000 is arranged in parallel at the front side of the left part of the main conveying line 100, the loading and transporting mechanism 1100 is arranged across the main conveying line 100 and the incoming material conveying line 1000, the material removal conveying line 1200 is arranged in parallel at the front side of the right part of the main conveying line 100, the material removal conveying mechanism 1300 is arranged across the main conveying line 100 and the material removal conveying line 1200, and the return conveying line 1400 connects the left and right ends of the main conveying line 100 respectively. The arrangement of the return conveying line 1400 allows the conveying trolley 200 on the main conveying line 100 to be recycled, thereby improving the utilization rate of the conveying trolley 200 and reducing the investment in the conveying trolley 200. Specifically, the incoming material conveying line 1000 and the outgoing material conveying line 1200 are both existing technologies; the return conveying line 1400 adopts a plate chain line.

[0062] like Figure 1 and Figure 5 As shown, the loading and transporting mechanism 1100 and the unloading and transporting mechanism 1300 both include a fourth gantry 1110, a fourth Y-axis module 1120, a fourth Z-axis module 1130, a T-shaped frame 1140, a clamping cylinder 1150 and an insulating clamping plate 1160. The fourth gantry 1110 in the loading and transporting mechanism 1100 is arranged across the main conveying line 100 and the incoming material conveying line 1000, and the fourth gantry 1110 in the unloading and transporting mechanism 1300 is arranged across the main conveying line 100 and the material removal conveyor line 1200, the fourth Y-axis module 1120 is longitudinally installed on the top of the fourth gantry 1110, the fourth Z-axis module 1130 is vertically installed on the slide of the fourth Y-axis module 1120, the T-frame 1140 is vertically installed on the slide of the fourth Z-axis module 1130, the clamping cylinder 1150 is respectively installed on the left and right ends of the bottom of the T-frame 1140, and the insulating clamping plate 1160 is relatively installed on the two driving ends of the clamping cylinder 1150.

[0063] During operation, the loading and transporting mechanism 1100 transports the battery cells delivered by the incoming material conveyor line 1000 to the conveying cart 200 on the left side of the main conveyor line 100, and at the same time the barcode scanner 1500 reads the QR code of the battery cell, binds the QR code of the battery cell to the internal ID of the conveying cart 200, thereby binding the information of the battery cell and the conveying cart 200; then the main conveyor line 100 transports the conveying cart 200 through the pole surface texturing mechanism 300, the turning mechanism 400, the narrow surface texturing mechanism 500, the bottom surface texturing mechanism 600 and the wide surface texturing mechanism 700 in sequence, to achieve laser texturing of each surface of the battery cell; finally, the unloading and transporting mechanism 1300 transports the cleaned battery cells to the removal conveyor line 1200 for transport, and the empty conveying cart 200 enters the reflux conveyor line 1400 for circulation.

[0064] Example 2

[0065] A laser cleaning method based on the laser cleaning line for the surface of a battery cell described in Example 1, the specific steps are as follows:

[0066] S1. The pole surface texturing mechanism 300 performs laser cleaning on the pole surface of the battery cell;

[0067] S2. The first guide plate 800 drives the rotating assembly 230 to rotate the battery cell 90° clockwise, the flip mechanism 400 flips the rotated battery cell 180°, and the narrow surface texturing mechanism 500 performs laser cleaning on the narrow surface of the battery cell;

[0068] S3. The first guide plate 800 releases the rotating assembly 230 so that the battery cell is rotated 90° counterclockwise to reset, and the bottom surface texturing mechanism 600 performs laser cleaning on the bottom surface of the battery cell;

[0069] S4. The second guide plate 900 drives the lifting assembly 250 to make the side guard plate 240 drop to avoid, and the wide surface texturing mechanism 700 performs laser cleaning on the wide surface of the battery cell;

[0070] S5. The second guide plate 900 releases the lifting assembly 250 so that the side guard plate 240 rises and returns to its original position.

[0071] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it. They cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A laser cleaning line for battery cell surface, characterized in that: The invention comprises a main conveying line (100) extending transversely, a plurality of conveying carriages (200) installed on the main conveying line (100) and conveyed by the main conveying line (100), and a pole surface texturing mechanism (300), a turning mechanism (400), a narrow surface texturing mechanism (500), a bottom surface texturing mechanism (600) and a wide surface texturing mechanism (700) arranged in sequence along the conveying direction of the main conveying line (100); the conveying carriage (200) comprises The base frame (210) is movably mounted on the main conveyor line (100). The carrier (220) is arranged directly above the base frame (210). The rotating assembly (230) is mounted at the middle of the top end of the base frame (210), and its top end is connected to the middle of the bottom end of the carrier (220). The side guard plates (240) are mirror-imaged on the front and rear sides of the vehicle (220). A lifting assembly (250) is installed at the bottom of the carrier (220), and a top end thereof is connected to the outer side of the side guard plate (240); Also includes The first guide plate (800) is installed on the rear side of the main conveying line (100) and extends laterally between the pole surface texturing mechanism (300) and the bottom surface texturing mechanism (600) to drive the rotating assembly (230) to rotate. and a second guide plate (900) installed on the front side of the main conveying line (100) and extending laterally inside the wide surface texturing mechanism (700) to drive the lifting assembly (250) to move up and down.

2. The battery surface laser cleaning line according to claim 1, characterized in that: The rotating assembly (230) comprises a bearing seat (231), a rotating shaft (232), a gear (233), a rack (234), a rotating follower (235) and a rotating spring (236). The bearing seat (231) is mounted at the middle of the top end of the base frame (210). The rotating shaft (232) passes through the bearing seat (231) and is rotatably matched with the bearing seat (231). The top end of the rotating shaft (232) is connected to the middle of the bottom end of the carrier (220), and the bottom end thereof is connected to the gear (233). The rack (234) is slidably mounted at the top end of the base frame (210) through a guide rail (237) and is meshed with the gear (233). The rack (234) and the guide rail (237) are both arranged longitudinally. The rear end of the guide rail (237) extends out of the base frame (210). The rotating follower (235) is mounted at the rear end of the guide rail (237). The rotating spring (236) is The lifting assembly (250) comprises a slider (251), a lifting rod (252), a lifting follower (253) and a lifting spring (254). The slider (251) is slidably mounted on the left and right ends of the bottom of the carrier (220). The lifting rod (252) is vertically mounted on the front and rear ends of the slider (251) and the top end of the slider is connected to the outer side of the side guard plate (240). The lifting follower (253) is mounted on the front end of the slider (251). The lifting spring (254) is respectively arranged on the left and right ends of the front side of the carrier (220). One end of the lifting spring (254) is connected to the carrier (220) and the other end is connected to the bottom end of the lifting rod (252).

3. The battery surface laser cleaning line according to claim 1, characterized in that: The cylindrical surface texturing mechanism (300) comprises a first gantry (310), a first X-direction module (320), a first Z-direction module (330), a first laser galvanometer assembly (340), a first dust extraction duct (350), a first distance measuring sensor (360) and a first laser power assembly (370), wherein the first gantry (310) is arranged at the rear side of the main conveying line (100), the first X-direction module (320) is transversely mounted at the top end of the first gantry (310), and the first Z-direction module (330) is arranged at the rear side of the main conveying line (100). The first X-axis module (330) is vertically mounted on a slide plate of the first X-axis module (320); the first laser galvanometer assembly (340) is vertically mounted on a slide plate of the first Z-axis module (330); the first dust extraction duct (350) is mounted on the slide plate of the first X-axis module (320), and its duct opening corresponds to the battery cell; the first distance measuring sensor (360) is arranged beside the first laser galvanometer assembly (340); and the first laser power assembly (370) is arranged on the front side of the main conveying line (100).

4. The battery surface laser cleaning line according to claim 1, characterized in that: The flipping mechanism (400) includes a stand (410), a second Z-axis module (420), a flipping motor (430) and a clamping air claw (440), wherein the stand (410) is arranged on the front side of the main conveying line (100), the second Z-axis module (420) is vertically installed on the top rear side of the stand (410), the flipping motor (430) is longitudinally installed on the slide of the second Z-axis module (420), and the clamping air claw (440) is longitudinally installed at the output end of the flipping motor (430).

5. The battery surface laser cleaning line according to claim 1, characterized in that: The narrow surface texturing mechanism (500) and the wide surface texturing mechanism (700) both comprise a second Y-direction module (510), a frame (520), a second laser galvanometer assembly (530), a second dust extraction duct (540), a second distance measuring sensor (550), a light shielding assembly (560), and a second laser power assembly (570); the second Y-direction module (510) is longitudinally arranged on one side of the main conveying line (100); and the second laser galvanometer assembly (530) is longitudinally installed via the frame (520). On the slide plate of the second Y-axis module (510), the second dust extraction duct (540) is installed on the frame (520), and its pipe mouth corresponds to the battery cell, the second distance measuring sensor (550) is arranged next to the second laser galvanometer assembly (530), the light blocking assembly (560) is arranged on the other side of the main conveying line (100) and corresponds to the second laser galvanometer assembly (530), and the second laser power assembly (570) is arranged between the main conveying line (100) and the light blocking assembly (560).

6. The battery cell surface laser cleaning line according to claim 1, characterized in that: The bottom surface texturing mechanism (600) comprises a third gantry (610), a third Z-direction module (620), a third laser galvanometer assembly (630), a third dust extraction pipeline (640), a third distance measuring sensor (650) and a third laser power assembly (660); the third gantry (610) is arranged across the main conveying line (100); the third Z-direction module (620) is vertically mounted at the middle of the top end of the third gantry (610); the third laser galvanometer assembly (630) is vertically mounted on a slide plate of the third Z-direction module (620); the third dust extraction pipeline (640) is mounted at the top end of the third gantry (610), and its pipe mouth corresponds to the electric core; the third distance measuring sensor (650) is arranged beside the third laser galvanometer assembly (630); and the third laser power assembly (660) is arranged at the front side of the main conveying line (100).

7. The battery surface laser cleaning line according to claim 1 or 2, characterized in that: The left and right ends of the front side surface of the first guide plate (800) are respectively first inclined surfaces (810), and the two first inclined surfaces (810) form an eight-shaped shape; the left and right ends of the bottom surface of the second guide plate (900) are respectively second inclined surfaces (910), and the two second inclined surfaces (910) form an eight-shaped shape.

8. The battery surface laser cleaning line according to claim 1, characterized in that: It also includes an incoming material conveyor line (1000), a loading material handling mechanism (1100), a removing material conveyor line (1200), a discharging material handling mechanism (1300) and a return flow conveyor line (1400), wherein the incoming material conveyor line (1000) is arranged in parallel at the front side of the left portion of the main conveyor line (100), the loading material handling mechanism (1100) is arranged across the main conveyor line (100) and the incoming material conveyor line (1000), the removing material conveyor line (1200) is arranged in parallel at the front side of the right portion of the main conveyor line (100), the discharging material handling mechanism (1300) is arranged across the main conveyor line (100) and the removing material conveyor line (1200), and the return flow conveyor line (1400) is connected to the left and right ends of the main conveyor line (100), respectively.

9. The battery cell surface laser cleaning line according to claim 8, characterized in that: The loading and transporting mechanism (1100) and the unloading and transporting mechanism (1300) both comprise a fourth gantry (1110), a fourth Y-axis module (1120), a fourth Z-axis module (1130), a T-shaped frame (1140), a clamping claw cylinder (1150) and an insulating clamping plate (1160); the fourth gantry (1110) in the loading and transporting mechanism (1100) is arranged across the main conveying line (100) and the incoming material conveying line (1000); and the fourth gantry (1110) in the unloading and transporting mechanism (1300) is arranged across the main conveying line (1 00) and a material removal conveyor line (1200), the fourth Y-axis module (1120) is longitudinally mounted on the top of the fourth gantry (1110), the fourth Z-axis module (1130) is vertically mounted on the slide of the fourth Y-axis module (1120), the T-shaped frame (1140) is vertically mounted on the slide of the fourth Z-axis module (1130), the clamping cylinder (1150) is respectively mounted on the left and right ends of the bottom of the T-shaped frame (1140), and the insulating clamping plate (1160) is relatively mounted on the two driving ends of the clamping cylinder (1150).

10. A laser cleaning method based on the laser cleaning line for the surface of a battery cell according to any one of claims 1 to 9, characterized in that: The specific steps are as follows: S1. The pole surface texturing mechanism (300) performs laser cleaning on the pole surface of the battery cell; S2. The first guide plate (800) drives the rotating assembly (230) to rotate the battery cell 90° clockwise, the flipping mechanism (400) flips the rotated battery cell 180°, and the narrow surface texturing mechanism (500) performs laser cleaning on the narrow surface of the battery cell; S3. The first guide plate (800) releases the rotating assembly (230) so that the battery cell rotates 90° counterclockwise to reset, and the bottom surface texturing mechanism (600) performs laser cleaning on the bottom surface of the battery cell; S4. The second guide plate (900) drives the lifting assembly (250) to make the side guard plate (240) descend to avoid the side guard plate, and the wide surface texturing mechanism (700) performs laser cleaning on the wide surface of the battery cell; S5. The second guide plate (900) releases the lifting assembly (250) so that the side guard plate (240) rises and returns to its original position.

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