Battery welding line and process thereof

Abstract

The application belongs to the technical field of new energy battery manufacturing, and particularly relates to a battery welding production line and a process thereof, which comprises: an insulation voltage resistance testing machine; a pre-welding addressing device located on one side of the insulation voltage resistance testing machine; a CCS installation device located on one side of the pre-welding addressing device; and a plurality of sets of welding devices, wherein a plurality of the welding devices are located on one side of the CCS installation device. The application can quickly and accurately position the welding points during welding through the adjustable CCD camera, can conveniently move the laser emitter and the polishing mechanism through the plurality of sliding tables, and can conveniently remove dust through the dust removal mechanism to form a complete process from welding point addressing, workpiece transportation, overall welding, dust removal, and polishing, thereby improving the efficiency of new energy battery production, improving the stability during the welding process and the compatibility of the equipment, and guaranteeing the efficiency and quality of new energy battery production.

Description

Technical Field

[0001] This invention belongs to the technical field of new energy battery manufacturing, specifically involving battery welding production lines and their processes. Background Technology

[0002] New energy batteries, also known as power batteries, are batteries that provide power to transportation vehicles, generally in contrast to small batteries that provide energy to portable electronic devices. Based on different battery reaction principles, they can be divided into lead-acid power batteries, nickel-metal hydride power batteries, lithium-ion power batteries, and so on. Today, with the global focus on developing new energy industries such as electric vehicles and energy storage batteries, lithium batteries, as a recognized ideal energy storage component, have received greater attention. Existing new energy battery production lines and processes have not achieved complete automation from cell module assembly, welding point addressing, overall welding, dust removal, to polishing, resulting in low production efficiency, low welding stability, and unreliable battery quality. Summary of the Invention

[0003] To overcome the shortcomings of existing technologies, this invention provides a battery welding production line and its process, which solves the problem that existing new energy battery production lines and processes do not achieve complete full automation from cell module, welding point addressing, overall welding, dust removal, to grinding, resulting in low efficiency, low welding stability, and unreliable battery quality in new energy battery production.

[0004] One embodiment of the present invention provides a battery welding production line, comprising:

[0005] Insulation withstand voltage tester;

[0006] A pre-welding addressing device is located on one side of the insulation withstand voltage tester, and the pre-welding addressing device is connected to the insulation withstand voltage tester through a transmission device;

[0007] CCS installation equipment, which is located on one side of the pre-welding addressing equipment, is connected to the pre-welding addressing equipment via a transmission device;

[0008] Several sets of welding equipment, several of the welding equipment are located on one side of the CCS installation equipment, and the welding equipment is connected to the CCS installation equipment for circulation through a transmission device;

[0009] A post-weld dust removal and grinding device is located on one side of the welding equipment and is connected to the welding equipment via a transmission device.

[0010] A pallet grinding and cleaning device is located on the side of the post-weld dust removal and grinding device away from the pre-weld addressing device. The pallet grinding and cleaning device is connected to the post-weld dust removal and grinding device through a transmission device.

[0011] The insulation withstand voltage tester is used to test the insulation strength of the battery cell under a specified voltage.

[0012] The pre-welding addressing device is used to locate the welding points on the battery cell;

[0013] The CCS installation equipment is used to transport and weld CCS onto the battery cell.

[0014] The welding equipment is used to weld the battery cells;

[0015] The post-welding dust removal and polishing equipment is used to polish the battery cells;

[0016] The pallet grinding and cleaning equipment is used to grind and clean pallets.

[0017] In one embodiment, the pre-weld addressing device includes:

[0018] Support platform;

[0019] A sliding assembly, wherein the sliding assembly is mounted on a support platform, and the support platform is symmetrically arranged at the bottom of the sliding assembly;

[0020] The sliding assembly includes a first X-axis moving mechanical slide, a first Y-axis moving mechanical slide, and a first Z-axis moving mechanical slide;

[0021] The first X-axis moving mechanical slide is symmetrically mounted on the support platform and is used to drive the first Z-axis moving mechanical slide to move along the X-axis.

[0022] The first Y-axis moving mechanical slide is symmetrically mounted on the movable end of the first Z-axis moving mechanical slide, and is used to drive the external components to move along the Y-axis;

[0023] The first Z-axis moving mechanical slide is mounted on the movable end of the first X-axis moving mechanical slide via a sliding support frame, and is used to drive the first Y-axis moving mechanical slide to move along the Z-axis.

[0024] A vision component is mounted on the first Y-axis moving mechanical slide.

[0025] A double-layer roller conveyor, wherein the double-layer roller conveyor is located between the two support platforms;

[0026] The support platform is used to support the sliding assembly;

[0027] The first X-axis moving mechanical slide, the first Y-axis moving mechanical slide, and the first Z-axis moving mechanical slide respectively drive the vision component to move along the X-axis, Y-axis, and Z-axis;

[0028] The vision component is used to locate solder joints;

[0029] The double-layer roller conveyor is used for transporting external pallets back and forth.

[0030] In one embodiment, the vision component includes a laser rangefinder, a first fixture, a CCD-addressable camera, a connector, and a light source adjustment ring;

[0031] The laser rangefinder is mounted on two first Y-axis movable mechanical slides via the first fixing component;

[0032] The CCD addressing camera is fixedly mounted on the first fixing member;

[0033] The connector is fixedly mounted on the first fixing member;

[0034] The light source adjustment ring is fixedly installed at the bottom of the connector;

[0035] A first measuring plate is symmetrically fixedly arranged on the support platform, and a protective cover is fixedly arranged on the support platform.

[0036] The first ranging board is equipped with several Master points;

[0037] The laser rangefinder is used to test the distance to the battery.

[0038] The CCD addressing camera is used to confirm the welding position;

[0039] The connector is used to connect the light source adjustment ring and the first fixing member;

[0040] The light source adjustment ring is used to adjust to a better lighting position to ensure accurate positioning of the solder joints.

[0041] The Master point is used for class opening verification to ensure the accuracy of distance measurement and the correctness of direction.

[0042] In one embodiment, the CCS installation device includes:

[0043] First fixed frame;

[0044] Mounting platform, which is located within the first fixed frame;

[0045] Several sets of support mechanisms are fixedly mounted on the mounting platform;

[0046] Several sets of leveling components are mounted on the mounting platform and located below the supporting mechanism;

[0047] A first handling robotic arm is located on one side of the mounting platform;

[0048] A second handling robotic arm is located on one side of the mounting platform;

[0049] A first positioning mechanism is located on one side of the mounting platform;

[0050] The first positioning mechanism includes a base, a first cylinder, and a first movable block;

[0051] The first cylinder is fixedly mounted on the base;

[0052] The first movable block is fixedly mounted on the output end of the first cylinder;

[0053] The first fixed frame is used to isolate external personnel and prevent them from entering the working area of ​​the robotic arm.

[0054] The mounting platform is used by the robotic arm to install the CCS components;

[0055] The support mechanism is used to place the CCS components to be installed, which are transported by the robotic arm;

[0056] The leveling component is used to level and position the components installed on the CCS.

[0057] The first positioning mechanism is used to flatten the pallet with the CCS components installed during transportation to complete the positioning;

[0058] The first handling robotic arm is used to transport the CCS components that need to be installed;

[0059] The second handling robotic arm is used to transport the installed CCS components.

[0060] In one embodiment, the bearing mechanism includes a plurality of support columns, a support plate, and a plurality of limiting plates;

[0061] Several of the aforementioned support columns are fixedly mounted on the mounting platform;

[0062] The support plate is fixedly mounted on a plurality of the support columns;

[0063] One side of several of the limiting plates is fixedly disposed on one side of the support plate, and the height of the limiting plate is greater than the height of the support plate;

[0064] The flattening component includes a first moving mechanism and a second moving mechanism;

[0065] The first moving mechanism and the second moving mechanism are mounted on the mounting platform;

[0066] The first moving mechanism and the second moving mechanism are located below the support plate;

[0067] The support plate is provided with slides adapted to the first moving mechanism and the second moving mechanism, and the moving ends of the first moving mechanism and the second moving mechanism are higher than the support plate.

[0068] The support column is used to support the support plate, and the support plate forms a hollow chamber between the support column and the mounting platform. The first moving mechanism and the second moving mechanism are both located in the hollow chamber.

[0069] The support plate is used to place the CCS components to be installed;

[0070] The limiting plate is used to prevent the CCS component from falling when it is pushed.

[0071] The first moving mechanism is used to laterally push the CCS assembly placed on the support plate;

[0072] The second moving mechanism is used to push the CCS assembly placed on the support plate longitudinally, thereby flattening the CCS assembly by pushing it with the first and second moving mechanisms.

[0073] In one embodiment, a first roller conveyor and a second roller conveyor are disposed within the first fixed frame;

[0074] The first roller conveyor is located on one side of the mounting platform and extends beyond the first fixed frame;

[0075] The second roller conveyor is located on the side of the mounting platform opposite to the first roller conveyor, and the second roller conveyor extends beyond the first fixed frame;

[0076] The first roller conveyor is used to transport the CCS components that need to be installed.

[0077] The second roller conveyor is used to transport pallets carrying CCS components that have been installed.

[0078] The first roller conveyor and the second roller conveyor are also used for the transfer and transportation of products between various devices;

[0079] The base is located on one side of the second roller conveyor.

[0080] In one embodiment, the plurality of sets of welding equipment include:

[0081] Rack base;

[0082] A mounting frame is fixedly mounted on the top of the frame base, and a placement platform is fixedly mounted on the mounting frame;

[0083] A third moving mechanism is mounted on the placement platform. The third moving mechanism includes a second X-axis moving mechanical slide, a second Y-axis moving mechanical slide, and a second Z-axis moving mechanical slide. The second X-axis moving mechanical slide is mounted on the placement platform, the second Y-axis moving mechanical slide is mounted on the second X-axis moving mechanical slide, and the second Z-axis moving mechanical slide is mounted on the second Y-axis moving mechanical slide.

[0084] A welding mechanism is mounted on the third moving mechanism. The welding mechanism includes a laser emitter, which is mounted on the second Z-axis moving mechanical slide. A protective cover is fixedly installed on the laser emitter, and a smoke exhaust pipe is fixedly installed on one side of the protective cover.

[0085] A feeding mechanism is provided in the middle of the machine frame base. The feeding mechanism includes a third roller conveyor, which is provided in the middle of the machine frame base.

[0086] A second positioning mechanism is mounted on the fixed frame;

[0087] A second ranging component is mounted on the fixed frame;

[0088] The fixing frame is used to support the placement platform;

[0089] The second X-axis moving mechanical slide, the second Y-axis moving mechanical slide, and the second Z-axis moving mechanical slide are used to drive the laser emitter to move along the X-axis, Y-axis, and Z-axis;

[0090] The protective cover is used to block the arc light and fumes during laser generator welding;

[0091] The exhaust pipe is connected to an external vacuum cleaner to remove harmful gases and fumes generated during welding.

[0092] The third roller conveyor is used to transport battery cells that need to be welded and to transfer and transport products between various devices.

[0093] In one embodiment, a first grinding mechanism is provided on the fixing frame;

[0094] The first grinding mechanism includes a second fixed frame, a first movable slide, a sliding frame, a second movable slide, a first lifting mechanism, a connecting block, a first servo motor, and a grinding head;

[0095] The second fixing frame is fixedly mounted on the frame base, and the second fixing frame is located inside the fixing frame;

[0096] The first movable slide is mounted on the second fixed frame;

[0097] The sliding frame is slidably mounted on the sliding end of the first movable slide table;

[0098] The second movable slide is mounted on the sliding frame;

[0099] The first lifting mechanism is installed on the sliding end of the second movable slide;

[0100] The connecting block is fixedly mounted on the output end of the first lifting mechanism;

[0101] The first servo motor is fixedly mounted on the connecting block;

[0102] The grinding head is fixedly mounted on the output shaft of the first servo motor, and the grinding head passes through the connecting block and extends beyond the connecting block;

[0103] The second fixed frame is used to support the first movable slide.

[0104] The first movable slide is used to drive the sliding frame and the second movable slide to move.

[0105] The second movable slide is used to drive the first lifting mechanism, the connecting block, the first servo motor and the grinding head to move;

[0106] The first lifting mechanism is used to drive the connecting block, the first servo motor and the grinding head to move up and down;

[0107] The first servo motor is used to drive the grinding head to rotate, thereby grinding the tray.

[0108] In one embodiment, the second positioning mechanism includes a camera mount and a CCD camera;

[0109] The camera mounting base is fixedly mounted on one side of the second Z-axis moving mechanical slide;

[0110] The CCD camera is fixedly mounted on one side of the camera mount;

[0111] The second ranging component includes a second cylinder, a support plate, two ranging sensors, and an adjustment device;

[0112] The second cylinder is fixedly mounted on one side of the second Y-axis moving mechanical slide;

[0113] The support plate is fixedly mounted on the output end of the second cylinder;

[0114] The two ranging sensors are mounted on a straight section of the support plate;

[0115] The adjusting device is mounted on the support plate;

[0116] The adjustment device includes a second ranging plate, a limiting block, and a second movable block;

[0117] The second ranging plate is fixedly mounted on the bearing plate;

[0118] The limiting blocks are symmetrically arranged on one side of the second ranging plate, and a fixing rod is fixedly arranged between the two limiting blocks;

[0119] The second movable block is sleeved on the fixed rod, and one of the ranging sensors is fixedly installed on one side of the second movable block;

[0120] The second fixed frame is provided with multiple sets of first suction pipes;

[0121] The fixing frame is provided with a first connecting pipe;

[0122] The multiple sets of first suction pipes are installed on the first connecting pipe;

[0123] The CCD camera is used to locate the welding points.

[0124] The second cylinder is used to move the support plate above the battery assembly;

[0125] The ranging sensor is used to accurately determine the distance the battery assembly has moved;

[0126] The adjustment device is used to move one of the ranging sensors;

[0127] The second distance measuring plate is used for preliminary measurement of the distance between the two distance measuring sensors;

[0128] The limiting block is used to limit the range of movement of the ranging sensor;

[0129] The second movable block is used to move the ranging sensor;

[0130] Multiple sets of the first suction pipes are used to remove the fumes generated during welding;

[0131] The first connecting pipe is used to connect to an external vacuum cleaner.

[0132] In one embodiment, the post-weld dust removal and grinding equipment includes:

[0133] frame;

[0134] A mobile module is mounted on the frame, and the frame is symmetrically fixedly arranged at the bottom of the mobile module. The mobile module includes a third X-axis mobile mechanical slide and a third Y-axis mobile mechanical slide. The third X-axis mobile mechanical slide is fixedly arranged on the two frames, and the third Y-axis mobile mechanical slide is mounted on the third X-axis mobile mechanical slide.

[0135] The first dust removal mechanism is installed on the sliding end of the third Y-axis moving mechanical slide.

[0136] The second grinding mechanism is installed on the sliding end of the third Y-axis moving mechanical slide.

[0137] The first dust removal mechanism includes a second fixed component, a fixed pipe, and a movable pipe;

[0138] The second fixing member is fixedly mounted on the third Y-axis moving mechanical slide, and the second fixing member is provided with a sliding groove;

[0139] Both the fixed tube and the movable tube are provided with fixing buckles, and the fixed tube and the movable tube are fixedly mounted on the second fixing member by the fixing buckles. The fixing buckles are fixedly mounted on the slide groove.

[0140] The third X-axis moving mechanical slide is used to drive the third Y-axis moving mechanical slide to move along the X-axis;

[0141] The third Y-axis moving mechanical slide is used to drive the first dust removal mechanism and the second grinding mechanism to move along the Y-axis.

[0142] The second polishing mechanism is used to polish the battery cell;

[0143] The first dust removal mechanism is used to remove dust generated during grinding;

[0144] The fixed tube and the movable tube are detachable, allowing for adjustment of their positions.

[0145] In one embodiment, a second dust suction pipe is symmetrically fixed on the fixed pipe;

[0146] Several third suction pipes are installed on the active tube;

[0147] A fourth roller conveyor is installed between the two frames, and a second lifting mechanism is installed on the fourth roller conveyor;

[0148] The second lifting mechanism includes a drive cylinder, a second lifting plate, and a lifting sensor;

[0149] The drive cylinder is fixedly mounted on the first fixing plate;

[0150] The second lifting plate is fixedly mounted on the output shaft of the drive cylinder;

[0151] The lifting sensor is fixedly mounted on the second lifting plate;

[0152] The second and third dust extraction pipes are used to absorb the dust generated during grinding.

[0153] The fourth roller conveyor is used for transporting pallets and transferring and transporting products between various devices;

[0154] The drive cylinder is used to drive the second lifting plate to rise and fall, thereby adjusting the height of the material;

[0155] The lifting sensor is used to detect when the second lifting plate is raised or lowered to ensure that the lifting is in place.

[0156] In one embodiment, the second polishing mechanism includes a plurality of first fixed blocks, a second servo motor, a first rotating rod, a polishing brush, and a dust collection hood;

[0157] Several of the first fixing blocks are fixedly mounted on the sliding end of the third Y-axis moving mechanical slide;

[0158] The second servo motor is fixedly mounted on the first fixing block;

[0159] The first rotating rod is fixedly mounted on the output shaft of the second servo motor;

[0160] The polishing brush is fixedly mounted at the end of the first rotating rod away from the second servo motor;

[0161] The dust hood is fixedly installed at the bottom of the first fixed block, and the dust hood is sleeved on the first rotating rod;

[0162] The first fixing block is used to support the second servo motor;

[0163] The second servo motor is used to drive the first rotating rod and the grinding brush to rotate;

[0164] The dust hood is used to reduce dust generated during polishing.

[0165] In one embodiment, the pallet polishing and cleaning device includes:

[0166] Fixed frame;

[0167] A conveying mechanism is mounted on the frame;

[0168] A transverse sliding table is mounted on the frame and has two parallel sliding rails and a connecting frame perpendicular to the two sliding rails.

[0169] An adjustment mechanism, which is mounted on the connecting frame;

[0170] A cleaning mechanism is mounted on the adjusting mechanism. The cleaning mechanism includes a second dust removal mechanism and a third polishing mechanism. The second dust removal mechanism is mounted on the adjusting mechanism and includes a second connecting pipe and several suction pipes. The several suction pipes are mounted at the bottom of the second connecting pipe.

[0171] The adjustment mechanism includes a second fixed plate and an adjustment component;

[0172] The second fixing plate is fixedly installed on the connecting frame;

[0173] The adjusting component is fixedly mounted on the second fixing plate;

[0174] The second connecting pipe is fixedly mounted on the adjusting member;

[0175] The conveying mechanism is used to convey pallets;

[0176] The lateral sliding table is used to move the adjustment mechanism and the cleaning mechanism.

[0177] The adjustment mechanism is used to adjust the cleaning mechanism;

[0178] The second dust removal mechanism and the third polishing mechanism are used to remove substances from the surface of the tray;

[0179] The connecting pipe and the dust suction pipe are used to work together to absorb the dust generated during the grinding process of the third grinding mechanism;

[0180] The second fixing plate is used to support the adjusting component;

[0181] The adjusting element is used to adjust the second connecting pipe.

[0182] In one embodiment, the third grinding mechanism includes a transmission mechanism, a second fixed block, a second rotating rod, a plurality of grinding wheels, and a protective mechanism;

[0183] The transmission mechanism is mounted on the second fixed plate;

[0184] The second fixing blocks are symmetrically arranged on the second fixing plate;

[0185] The second rotating rod passes through the two second fixed blocks and is rotatably mounted on the two second fixed blocks, and a first pulley is mounted on the second rotating rod, with the first pulley located between the two second fixed blocks;

[0186] Several grinding wheels are movably sleeved on the second rotating rod, and a locking ring is installed on one side of the grinding wheel, the locking ring being sleeved on the second rotating rod;

[0187] The protective mechanism is mounted on the second fixing plate;

[0188] The transmission mechanism includes a third servo motor, a second pulley, and a belt;

[0189] The third servo motor is fixedly mounted on one side of the second fixing plate;

[0190] The second pulley is fixed on the output shaft of the third servo motor, and the second pulley is parallel to the central axis of the first pulley;

[0191] The belt is fitted onto the first pulley and the second pulley;

[0192] The transmission mechanism is used to drive the grinding wheel to rotate, thereby grinding the tray;

[0193] The second fixing block is used to support the second rotating rod;

[0194] The third servo motor is used to drive the second pulley to rotate;

[0195] The belt is used to simultaneously drive the first pulley and the second rotating rod to rotate when the second pulley rotates.

[0196] In one embodiment, the protective mechanism includes a protective housing and a third fixing member;

[0197] The protective housing is movably fitted onto the grinding wheel, and the protective housing has a through hole that matches the locking ring.

[0198] One end of the third fastener is fixedly disposed on the protective box body, and the other end of the third fastener is fixedly connected to the second fixing plate;

[0199] The ends of several suction tubes furthest from the second connecting tube are respectively connected to different protective housings.

[0200] One embodiment of the present invention provides a battery welding process, including:

[0201] The insulation strength test of the battery cell is carried out by the insulation withstand voltage tester. The qualified battery cell is sent to the pre-welding addressing equipment through the tray. The pre-welding addressing equipment locates the welding point of the battery cell on the tray. After the welding point is determined, the battery cell is sent to the CCS installation equipment.

[0202] During the adjustment of the CCD addressing camera, the first X-axis moving mechanical slide, the first Y-axis moving mechanical slide and the first Z-axis moving mechanical slide drive the CCD addressing camera to move along the X, Y and Z axes to locate the welding point of the battery cell. The Master point is used for on-site verification to ensure the accuracy of the distance measurement and the correctness of the direction. The double-layer roller conveyor transports the battery cell with the determined welding point and returns the tray.

[0203] The CCS is transported using CCS installation equipment and installed on the battery cell by manual welding. After installation, the product is sent out of the production line.

[0204] When the CCS-installed components are placed on the mounting platform, they are first leveled and positioned by the first moving mechanism, and then the second moving mechanism is activated for a second leveling. After manual welding and installation, the installed components are placed on the pallet of the second roller conveyor by a robotic arm and transported.

[0205] The incoming battery cells are welded using welding equipment. The welded battery cells are then transported to a post-weld dust removal and grinding equipment, which grinds the welded areas of the incoming battery cells while simultaneously removing dust.

[0206] Specifically, the laser emitter is moved back and forth along the X, Y, and Z axes by the second X-axis moving mechanical slide, the second Y-axis moving mechanical slide, and the second Z-axis moving mechanical slide to weld the battery cell. The welded battery cell is then transported to the post-weld dust removal and polishing equipment. The second polishing mechanism is moved by the third X-axis moving mechanical slide and the third Y-axis moving mechanical slide to polish the battery cell. During polishing, an external vacuum cleaner is connected to the first and second dust suction pipes for dust removal.

[0207] The pallet grinding and cleaning equipment grinds and cleans the pallets after transporting the battery cells and then sends them to the initial production line.

[0208] The grinding mechanism is moved by a horizontally moving slide, and the third servo motor is started to drive the second pulley to rotate. The belt drives the first pulley to rotate at the same time. The first pulley drives the second rotating rod and the grinding wheel to rotate to perform grinding. The dust and waste generated by grinding are sucked in through the dust suction pipe. The connecting pipe is used to connect to an external vacuum cleaner to remove the generated dust and waste.

[0209] The battery welding production line and process provided in the above embodiments have the following beneficial effects:

[0210] 1. Current addressing devices cannot effectively adjust the range of the CCD camera's light source, resulting in inaccurate solder joint positions. However, in the embodiments of this invention, the connector can be adjusted by loosening the bolts on the connector. While moving the connector, the light source adjustment ring moves. In this way, after cell ranging and CCD addressing camera adjustment, the light source adjustment ring can be adjusted to a better lighting position. Furthermore, the accuracy of ranging and the correctness of direction are ensured through master point verification, which can effectively ensure the precise positioning of the solder joint.

[0211] 2. When the CCS-installed component is placed on the mounting table, the first moving mechanism is activated. The first moving mechanism pushes the CCS-installed component flat and positions it for the first time. Then, the first moving mechanism is activated again to push the CCS-installed component flat for the second time. After installation, the robotic arm places the installed component on the pallet of the second roller conveyor. Before transporting it to the pallet, the first cylinder is activated. The first cylinder drives the first movable block and pushes it against the limit post, thereby flattening the pallet and completing the positioning. This solves the problem that the positioning of CCS-installed components cannot be well performed when transporting them, and that positioning is generally a single positioning, which makes it easy for the robotic arm to damage the components when transporting them.

[0212] 3. Currently, when welding battery modules, different sizes and models are encountered. Because there is no ranging device, the laser emitter cannot be accurately controlled to move to the appropriate position after module replacement, easily leading to laser deviation. However, in the embodiment of this invention, the second cylinder is activated to move the support plate above the battery module. Then, by moving the second movable block, one of the ranging sensors is moved, corresponding to the replaced battery module. The ranging sensor can accurately determine the moving distance again, thus moving the emitting laser to the appropriate position. This solves the problem of not being able to accurately control the laser emitter to the appropriate position after module replacement when welding different sizes and models of battery modules due to the lack of a ranging device.

[0213] 4. Currently, the grinding mechanism for the weld seams of battery modules cannot be adjusted, so it cannot grind battery modules of different sizes and types. However, in the embodiment of this invention, the first fixing block is adjusted by unscrewing the bolts and moving it to the threaded holes at different positions. The bolts are tightened to fix the first fixing block, and then the bolts are loosened to make fine adjustments to the first fixing block. Tightening the bolts again fixes the first fixing block, which effectively solves the problem that the grinding mechanism cannot grind battery modules of different sizes and types.

[0214] 5. Current pallet grinding mechanisms are not adjustable, resulting in incomplete grinding of the pallet. However, in the embodiments of this invention, loosening the bolts allows the locking ring to be released, enabling the grinding wheel to be adjusted on the rotating rod. During the adjustment of the locking ring, the protective housing also moves accordingly, effectively preventing the overflow of large amounts of dust and waste generated during grinding. After adjusting the locking ring, the bolts are tightened to fix the grinding wheel. Loosening the bolts on the arc-shaped block allows for adjustment of the connecting pipe's position, and the suction pipe can be replaced based on the adjusted position. This solves the problem of current pallet grinding mechanisms being unadjustable, thus preventing incomplete grinding of the pallet. Attached Figure Description

[0215] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0216] Figure 1 This is a schematic diagram of the structure of the present invention;

[0217] Figure 2 This is a schematic diagram of the pre-welding addressing device of the present invention;

[0218] Figure 3 This is a schematic diagram of the sliding component of the present invention;

[0219] Figure 4 for Figure 3 Enlarged view of point A;

[0220] Figure 5 This is a side view of the sliding component of the present invention.

[0221] Figure 6 for Figure 5 Enlarged view of point B;

[0222] Figure 7 This is a schematic diagram of the structure of the second ranging plate of the present invention;

[0223] Figure 8 This is a schematic diagram of the CCS installation equipment of the present invention;

[0224] Figure 9 This is a perspective view of the CCS installation equipment of the present invention;

[0225] Figure 10 This is a schematic diagram of the structure of the first positioning mechanism of the present invention;

[0226] Figure 11 This is a perspective view of the mounting platform of the present invention;

[0227] Figure 12 for Figure 11 Enlarged view of point C;

[0228] Figure 13 for Figure 11 Enlarged view of point D;

[0229] Figure 14 This is a schematic diagram of the welding equipment of the present invention;

[0230] Figure 15 for Figure 14 Enlarged view of point E;

[0231] Figure 16 This is a schematic diagram showing the connection between the fixed frame and the second X-axis moving mechanical slide of the present invention;

[0232] Figure 17 for Figure 23 Enlarged view at point F;

[0233] Figure 18 for Figure 23 Enlarged view of point G;

[0234] Figure 19 This is a schematic diagram showing the connection between the protective cover and the first fixing tube of the present invention;

[0235] Figure 20 This is a schematic diagram of the structure of the first polishing mechanism of the present invention;

[0236] Figure 21 This is a side view of the first grinding mechanism of the present invention;

[0237] Figure 22 This is a schematic diagram showing the connection between the second Z-axis moving mechanical slide and the laser emitter of the present invention;

[0238] Figure 23 This is a side view of the second Z-axis moving mechanical slide and laser emission of the present invention;

[0239] Figure 24 for Figure 23 Enlarged view of point H;

[0240] Figure 25 This is a schematic diagram of the post-weld dust removal and grinding equipment of the present invention;

[0241] Figure 26 This is a schematic diagram of the frame structure of the present invention;

[0242] Figure 27 for Figure 26 Enlarged view of point I;

[0243] Figure 28 This is a bottom view of the lifting mechanism of the present invention;

[0244] Figure 29 This is a perspective view of the lifting mechanism of the present invention;

[0245] Figure 30 This is a schematic diagram of the structure of the second polishing mechanism of the present invention;

[0246] Figure 31 This is a perspective view of the second polishing mechanism of the present invention;

[0247] Figure 32 This is a schematic diagram of the structure of the pallet grinding and cleaning equipment of the present invention;

[0248] Figure 33 This is a schematic diagram of the structure of the frame base of the present invention;

[0249] Figure 34 for Figure 33 Enlarged view of point J;

[0250] Figure 35 This is a schematic diagram showing the connection between the transverse moving slide and the third grinding mechanism of the present invention;

[0251] Figure 36 for Figure 35 Enlarged view of point K;

[0252] Figure 37 This is a schematic diagram of the third grinding mechanism of the present invention. Detailed Implementation

[0253] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0254] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0255] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0256] like Figure 1 As described above, one embodiment of the present invention provides a battery welding production line, comprising:

[0257] Insulation withstand voltage tester 1;

[0258] The pre-welding addressing device 2 is located on one side of the insulation withstand voltage tester 1, and the pre-welding addressing device 2 is connected to the insulation withstand voltage tester 1 through a transmission device;

[0259] CCS installation device 3, which is located on one side of the pre-welding addressing device 2, is connected to the pre-welding addressing device 2 via a transmission device;

[0260] Several sets of welding equipment 4 are located on one side of the CCS installation equipment 3, and the welding equipment 4 are connected to the CCS installation equipment 3 through a transmission device.

[0261] Post-weld dust removal and grinding equipment 5, which is located on one side of the welding equipment 4, is connected to the welding equipment 4 via a transmission device;

[0262] The pallet grinding and cleaning equipment 6 is located on the side of the post-weld dust removal and grinding equipment 5 away from the pre-weld addressing equipment 2. The pallet grinding and cleaning equipment 6 is connected to the post-weld dust removal and grinding equipment 5 through a transmission device.

[0263] The insulation withstand voltage tester 1 is used to test the insulation strength of the battery cell under a specified voltage.

[0264] The pre-welding addressing device 2 is used to locate the welding points on the battery cell;

[0265] The CCS installation equipment 3 is used to transport and weld CCS onto the battery cell.

[0266] The welding equipment 4 is used to weld the battery cells;

[0267] The post-welding dust removal and polishing equipment 5 is used to polish the battery cells;

[0268] The pallet grinding and cleaning device 6 is used to grind and clean pallets.

[0269] The battery welding production line of this invention first uses an insulation withstand voltage tester 1 to test the insulation strength of the battery cell under a specified voltage. After the test is completed, the welding points on the battery cell are located by a pre-welding addressing device 2. Then, the welding is carried out. After that, the CCS is transported and welded onto the battery cell by a CCS installation device 3. The welding device 4 is used to weld the battery cell. After this step, the welding points of the battery cell are polished by a post-welding dust removal and polishing device 5. Finally, the pallet polishing and cleaning device 6 polishes and cleans the pallet used to transport the battery cell. This completes the fully automated production line and process of new energy battery production line from battery cell module, welding point addressing, overall welding, dust removal and polishing.

[0270] like Figure 2-7 As shown, in one embodiment, the pre-welding addressing device 2 includes:

[0271] Support platform 201;

[0272] A sliding assembly 202 is mounted on a support platform 201, which is symmetrically arranged at the bottom of the sliding assembly 202.

[0273] The sliding assembly 202 includes a first X-axis moving mechanical slide 2021, a first Y-axis moving mechanical slide 2022, and a first Z-axis moving mechanical slide 2023;

[0274] The first X-axis moving mechanical slide 2021 is symmetrically mounted on the support platform 201, and is used to drive the first Z-axis moving mechanical slide 2023 to move along the X-axis;

[0275] The first Y-axis moving mechanical slide 2022 is symmetrically mounted on the movable end of the first Z-axis moving mechanical slide 2023, and is used to drive external components to move along the Y-axis;

[0276] The first Z-axis moving mechanical slide 2023 is mounted on the movable end of the first X-axis moving mechanical slide 2021 via a sliding support frame, and is used to drive the first Y-axis moving mechanical slide 2022 to move along the Z-axis;

[0277] Vision component 203 is mounted on the first Y-axis moving mechanical slide 2022;

[0278] A double-layer roller conveyor 204 is located between the two support platforms 201;

[0279] The support platform 201 is used to support the sliding assembly 202;

[0280] The first X-axis moving mechanical slide 2021, the first Y-axis moving mechanical slide 2022, and the first Z-axis moving mechanical slide 2023 respectively drive the vision component 203 to move along the X-axis, Y-axis, and Z-axis;

[0281] The vision component 203 is used to locate solder joints;

[0282] The double-layer roller conveyor 204 is used for transporting external pallets back and forth.

[0283] In one embodiment, the vision component 203 includes a laser rangefinder 2031, a first fixing member 2032, a CCD addressing camera 2033, a connector 2034, and a light source adjustment ring 2035;

[0284] The laser rangefinder 2031 is mounted on two first Y-axis moving mechanical slides 2022 via the first fixing member 2032;

[0285] The CCD addressing camera 2033 is fixedly mounted on the first fixing member 2032;

[0286] The connector 2034 is fixedly mounted on the first fastener 2032;

[0287] The light source adjustment ring 2035 is fixedly disposed at the bottom of the connector 2034;

[0288] A first measuring plate 205 is symmetrically fixed on the support platform 201, and a protective cover is fixed on the support platform 201.

[0289] The first ranging plate 205 is provided with a plurality of Master points 2051;

[0290] The laser rangefinder 2031 is used to test the distance to the battery.

[0291] The CCD addressing camera 2033 is used to confirm the welding position;

[0292] The connector 2034 is used to connect the light source adjustment ring 2035 and the first fixing member 2032;

[0293] The light source adjustment ring 2035 is used to adjust to a better lighting position to ensure accurate positioning of the solder joint.

[0294] The Master point 2051 is used for class opening verification to ensure the accuracy of distance measurement and the correctness of direction.

[0295] like Figure 8-13 As shown, in one embodiment, the CCS installation device 3 includes:

[0296] First fixed frame 301;

[0297] Mounting platform 302, which is located within the first fixed frame 301;

[0298] Several sets of support mechanisms 303 are fixedly mounted on the mounting platform 302;

[0299] Several sets of leveling components 304 are mounted on the mounting platform 302 and are located below the support mechanism 303;

[0300] The first handling robotic arm 305 is located on one side of the mounting platform 302;

[0301] The second handling robotic arm 306 is located on one side of the mounting platform 302;

[0302] The first positioning mechanism 307 is located on one side of the mounting platform 302;

[0303] The first positioning mechanism 307 includes a base 3071, a first cylinder 3072, and a first movable block 3073;

[0304] The first cylinder 3072 is fixedly mounted on the base 3071;

[0305] The first movable block 3073 is fixedly mounted on the output end of the first cylinder 3072;

[0306] The first fixed frame 301 is used to isolate external personnel and prevent them from entering the working area of ​​the robotic arm.

[0307] The mounting platform 302 is used by the robotic arm to install the CCS components;

[0308] The support mechanism 303 is used to place the CCS component to be installed, which is transported by the robotic arm.

[0309] The flattening component 304 is used to flatten and position the components installed on the CCS.

[0310] The first positioning mechanism 307 is used to flatten the pallet with the CCS components installed during transportation to complete the positioning;

[0311] The first handling robotic arm 305 is used to transport the CCS components that need to be installed;

[0312] The second handling robotic arm 306 is used to transport the installed CCS components.

[0313] In one embodiment, the bearing mechanism 303 includes a plurality of support columns 3031, a support plate 3032, and a plurality of limiting plates 3033;

[0314] Several of the aforementioned support columns 3031 are fixedly mounted on the mounting platform 302;

[0315] The support plate 3032 is fixedly mounted on a plurality of the support columns 3031;

[0316] One side of several of the limiting plates 3033 is fixedly disposed on one side of the support plate 3032, and the height of the limiting plate 3033 is greater than the height of the support plate 3032;

[0317] The flattening component 304 includes a first moving mechanism 3041 and a second moving mechanism 3042;

[0318] The first moving mechanism 3041 and the second moving mechanism 3042 are disposed on the mounting platform 302;

[0319] The first moving mechanism 3041 and the second moving mechanism 3042 are located below the support plate 3032;

[0320] The support plate 3032 is provided with a slide rail adapted to the first moving mechanism 3041 and the second moving mechanism 3042, and the moving ends of the first moving mechanism 3041 and the second moving mechanism 3042 are higher than the support plate 3032.

[0321] The support column 3031 is used to support the support plate 3032, and the support plate 3032 forms a hollow chamber between the support column 3031 and the mounting platform 302. The first moving mechanism 3041 and the second moving mechanism 3042 are both located in the hollow chamber.

[0322] The support plate 3032 is used to place the CCS components to be installed;

[0323] The limiting plate 3033 is used to prevent the CCS component from falling when it is pushed.

[0324] The first moving mechanism 3041 is used to laterally push the CCS assembly placed on the support plate 3032;

[0325] The second moving mechanism 3042 is used to push the CCS assembly placed on the support plate 3032 longitudinally, thereby flattening the CCS assembly by pushing it with the first moving mechanism 3041 and the second moving mechanism 3042.

[0326] In one embodiment, a first roller conveyor 308 and a second roller conveyor 309 are disposed within the first fixed frame 301;

[0327] The first roller conveyor 308 is located on one side of the mounting platform 302, and the first roller conveyor 308 extends outside the first fixed frame 301;

[0328] The second roller conveyor 309 is located on the side of the mounting platform 302 opposite to the first roller conveyor 308, and the second roller conveyor 309 extends outside the first fixed frame 301;

[0329] The first roller conveyor 308 is used to transport the CCS components that need to be installed.

[0330] The second roller conveyor 309 is used to transport pallets carrying CCS components that have been installed.

[0331] The first roller conveyor 308 and the second roller conveyor 309 are also used for the transfer and transportation of products between various devices;

[0332] The base 3071 is located on one side of the second roller conveyor 309.

[0333] like Figure 14-24 As shown, in one embodiment, the plurality of welding devices 4 include:

[0334] Rack base 401;

[0335] A mounting bracket 402 is fixedly mounted on the top of the frame base 401, and a placement platform 4021 is fixedly mounted on the mounting bracket 402.

[0336] A third moving mechanism 403 is mounted on the placement platform 4021. The third moving mechanism 403 includes a second X-axis moving mechanical slide 4031, a second Y-axis moving mechanical slide 4032, and a second Z-axis moving mechanical slide 4033. The second X-axis moving mechanical slide 4031 is mounted on the placement platform 4021, the second Y-axis moving mechanical slide 4032 is mounted on the second X-axis moving mechanical slide 4031, and the second Z-axis moving mechanical slide 4033 is mounted on the second Y-axis moving mechanical slide 4032.

[0337] Welding mechanism 404 is mounted on the third moving mechanism 403. Welding mechanism 404 includes laser emitter 4041, which is mounted on the second Z-axis moving mechanical slide 4033. A protective cover 4042 is fixedly installed on the laser emitter 4041, and a smoke exhaust pipe 4043 is fixedly installed on one side of the protective cover 4042.

[0338] The feeding mechanism 405 is disposed in the middle of the frame base 401. The feeding mechanism 405 includes a third roller bed conveyor 4051, which is disposed in the middle of the frame base 401.

[0339] The second positioning mechanism 406 is mounted on the fixed frame 402;

[0340] The second ranging component 407 is mounted on the fixed frame 402;

[0341] The fixing frame 402 is used to support the placement platform 4021;

[0342] The second X-axis moving mechanical slide 4031, the second Y-axis moving mechanical slide 4032 and the second Z-axis moving mechanical slide 4033 are used to drive the laser emitter 4041 to move along the X-axis, Y-axis and Z-axis.

[0343] The protective cover 4042 is used to block the arc light and fumes during laser generator welding;

[0344] The exhaust pipe 4043 is connected to an external vacuum cleaner to extract harmful gases and fumes generated during welding.

[0345] The third roller conveyor 4051 is used to transport battery cells that need to be welded and to transfer and transport products between various devices.

[0346] In one embodiment, a first polishing mechanism 408 is provided on the fixing frame 402;

[0347] The first grinding mechanism 408 includes a second fixed frame 4081, a first movable slide 4082, a sliding frame, a second movable slide, a first lifting mechanism 4085, a connecting block 4086, a first servo motor 4087, and a grinding head 4088;

[0348] The second fixing frame 4081 is fixedly mounted on the frame base 401, and the second fixing frame 4081 is located inside the fixing frame 402;

[0349] The first movable slide 4082 is mounted on the second fixed frame 4081;

[0350] The sliding frame is slidably mounted on the sliding end of the first movable slide table 4082;

[0351] The second movable slide is mounted on the sliding frame;

[0352] The first lifting mechanism 4085 is installed on the sliding end of the second movable slide;

[0353] The connecting block 4086 is fixedly mounted on the output end of the first lifting mechanism 4085;

[0354] The first servo motor 4087 is fixedly mounted on the connecting block 4086;

[0355] The grinding head 4088 is fixedly mounted on the output shaft of the first servo motor 4087, and the grinding head 4088 passes through the connecting block 4086 and extends to the outside of the connecting block 4086;

[0356] The second fixed frame 4081 is used to support the first movable slide 4082;

[0357] The first movable slide 4082 is used to drive the sliding frame and the second movable slide to move;

[0358] The second movable slide is used to drive the first lifting mechanism 4085, the connecting block 4086, the first servo motor 4087 and the grinding head 4088 to move;

[0359] The first lifting mechanism 4085 is used to drive the connecting block 4086, the first servo motor 4087 and the grinding head 4088 to lift.

[0360] The first servo motor 4087 is used to drive the grinding head 4088 to rotate, thereby grinding the tray.

[0361] In one embodiment, the second positioning mechanism 406 includes a camera mount 4061 and a CCD camera 4062;

[0362] The camera mounting base 4061 is fixedly mounted on one side of the second Z-axis moving mechanical slide 4033;

[0363] The CCD camera 4062 is fixedly mounted on one side of the camera mounting base 4061;

[0364] The second ranging assembly 407 includes a second cylinder 4071, a support plate 4072, two ranging sensors 4073, and an adjustment device 4074;

[0365] The second cylinder 4071 is fixedly mounted on one side of the second Y-axis moving mechanical slide 4032;

[0366] The support plate 4072 is fixedly mounted on the output end of the second cylinder 4071;

[0367] The two ranging sensors 4073 are mounted on the straight section of the support plate 4072;

[0368] The adjusting device 4074 is mounted on the support plate 4072;

[0369] The adjustment device 4074 includes a second ranging plate 40741, a limiting block 40742, and a second movable block 40743;

[0370] The second ranging plate 40741 is fixedly mounted on the bearing plate 4072;

[0371] The limiting blocks 40742 are symmetrically arranged on one side of the second ranging plate 40741, and a fixing rod 40744 is fixedly arranged between the two limiting blocks 40742.

[0372] The second movable block 40743 is sleeved on the fixed rod 40744, and one of the ranging sensors 4073 is fixedly installed on one side of the second movable block 40743;

[0373] The second fixed frame 4081 is provided with multiple sets of first suction pipes 409;

[0374] The fixing frame 402 is provided with a first connecting pipe 4091;

[0375] The multiple sets of first suction pipes 409 are installed on the first connecting pipe 4091;

[0376] The CCD camera 4062 is used to locate the welding points.

[0377] The second cylinder 4071 is used to move the support plate 4072 above the battery assembly;

[0378] The ranging sensor 4073 is used to accurately determine the distance the battery assembly has moved;

[0379] The adjustment device 4074 is used to move one of the ranging sensors 4073;

[0380] The second ranging plate 40741 is used for preliminary measurement of the distance between the two ranging sensors 4073;

[0381] The limiting block 40742 is used to limit the range of movement of the ranging sensor 4073;

[0382] The second movable block 40743 is used to move the ranging sensor 4073;

[0383] Multiple sets of the first dust extraction pipes 409 are used to remove the fumes generated during welding;

[0384] The first connecting pipe 4091 is used to connect to an external vacuum cleaner.

[0385] like Figure 25-31 As shown, in one embodiment, the post-weld dust removal and grinding equipment 5 includes:

[0386] Rack 501;

[0387] A mobile module 502 is mounted on a frame 501, and the frame 501 is symmetrically fixed at the bottom of the mobile module 502. The mobile module 502 includes a third X-axis mobile mechanical slide 5021 and a third Y-axis mobile mechanical slide 5022. The third X-axis mobile mechanical slide 5021 is fixedly mounted on the two frames 501, and the third Y-axis mobile mechanical slide 5022 is mounted on the third X-axis mobile mechanical slide 5021.

[0388] The first dust removal mechanism 503 is installed on the sliding end of the third Y-axis moving mechanical slide 5022;

[0389] The second grinding mechanism 504 is installed on the sliding end of the third Y-axis moving mechanical slide 5022;

[0390] The first dust removal mechanism 503 includes a second fixing member 5031, a fixed tube 5032, and a movable tube 5033;

[0391] The second fixing member 5031 is fixedly mounted on the third Y-axis moving mechanical slide 5022, and the second fixing member 5031 is provided with a sliding groove;

[0392] Both the fixed tube 5032 and the movable tube 5033 are provided with fixing buckles. The fixed tube 5032 and the movable tube 5033 are fixedly mounted on the second fixing member 5031 by the fixing buckles. The fixing buckles are fixedly mounted on the slide groove.

[0393] The third X-axis moving mechanical slide 5021 is used to drive the third Y-axis moving mechanical slide 5022 to move along the X-axis;

[0394] The third Y-axis moving mechanical slide 5022 is used to drive the first dust removal mechanism 503 and the second grinding mechanism 504 to move along the Y-axis.

[0395] The second polishing mechanism 504 is used to polish the battery cell;

[0396] The first dust removal mechanism 503 is used to remove dust generated during grinding;

[0397] The fixed tube 5032 and the movable tube 5033 are detachable, thereby allowing for adjustment of their positions.

[0398] In one embodiment, a second dust suction pipe 505 is symmetrically fixed on the fixed pipe 5032;

[0399] Several third suction pipes 506 are installed on the active pipe 5033;

[0400] A fourth roller bed conveyor is installed between the two frames 501, and a second lifting mechanism 508 is installed on the fourth roller bed conveyor;

[0401] The second lifting mechanism 508 includes a drive cylinder 5081, a second lifting plate 5082, and a lifting sensor 5083;

[0402] The drive cylinder 5081 is fixedly mounted on the first fixing plate;

[0403] The second lifting plate 5082 is fixedly mounted on the output shaft of the drive cylinder 5081;

[0404] The lifting sensor 5083 is fixedly mounted on the second lifting plate 5082;

[0405] The second dust suction pipe 505 and the third dust suction pipe 506 are used to absorb the dust generated during grinding.

[0406] The fourth roller conveyor is used for transporting pallets and transferring and transporting products between various devices;

[0407] The drive cylinder 5081 is used to drive the second lifting plate to rise and fall, thereby adjusting the height of the material;

[0408] The lifting sensor 5083 is used to sense when the second lifting plate is raised to the correct position to ensure that the lifting is in place.

[0409] In one embodiment, the second polishing mechanism 504 includes a plurality of first fixing blocks 5041, a second servo motor 5042, a first rotating rod 5043, a polishing brush 5044, and a dust collection cover 5045;

[0410] Several first fixing blocks 5041 are fixedly mounted on the sliding end of the third Y-axis moving mechanical slide 5022;

[0411] The second servo motor 5042 is fixedly mounted on the first fixing block 5041;

[0412] The first rotating rod 5043 is fixedly mounted on the output shaft of the second servo motor 5042;

[0413] The polishing brush 5044 is fixedly disposed at the end of the first rotating rod 5043 away from the second servo motor 5042;

[0414] The dust hood 5045 is fixedly disposed at the bottom of the first fixing block 5041, and the dust hood 5045 is sleeved on the first rotating rod 5043;

[0415] The first fixing block 5041 is used to support the second servo motor 5042;

[0416] The second servo motor 5042 is used to drive the first rotating rod 5043 and the polishing brush 5044 to rotate;

[0417] The dust hood 5045 is used to reduce dust generated during polishing.

[0418] like Figure 32-37 As shown, in one embodiment, the tray polishing and cleaning device 6 includes:

[0419] Fixed frame 601;

[0420] A conveying mechanism 602 is provided, which is mounted on the fixed frame 601.

[0421] A transverse sliding table 603 is mounted on the fixed frame 601. The transverse sliding table 603 is provided with two parallel sliding rails and a connecting frame 6031 perpendicular to the two sliding rails.

[0422] An adjustment mechanism 604 is mounted on the connecting frame 6031;

[0423] A cleaning mechanism 605 is mounted on the adjusting mechanism 604. The cleaning mechanism 605 includes a second dust removal mechanism 6051 and a third polishing mechanism 6052. The second dust removal mechanism 6051 is mounted on the adjusting mechanism 604. The second dust removal mechanism 6051 includes a second connecting pipe 60511 and a plurality of suction pipes 60512. The plurality of suction pipes 60512 are mounted on the bottom of the second connecting pipe 60511.

[0424] The adjustment mechanism 604 includes a second fixed plate 6041 and an adjustment component 6042;

[0425] The second fixing plate 6041 is fixedly installed on the connecting frame 6031;

[0426] The adjusting component 6042 is fixedly mounted on the second fixing plate 6041;

[0427] The second connecting pipe 60511 is fixedly mounted on the adjusting member 6042;

[0428] The conveying mechanism 602 is used to convey pallets;

[0429] The lateral moving slide 603 is used to drive the adjustment mechanism 604 and the cleaning mechanism 605 to move.

[0430] The adjustment mechanism 604 is used to adjust the cleaning mechanism 605;

[0431] The second dust removal mechanism 6051 and the third polishing mechanism 6052 are used to remove substances from the surface of the tray;

[0432] The connecting pipe and the dust suction pipe 60512 are used to cooperate with each other and absorb the dust generated during the grinding of the third grinding mechanism 6052;

[0433] The second fixing plate 6041 is used to support the adjusting member 6042;

[0434] The adjusting member 6042 is used to adjust the second connecting pipe 60511.

[0435] In one embodiment, the third grinding mechanism 6052 includes a transmission mechanism, a second fixing block 6054, a second rotating rod 6055, a plurality of grinding wheels 6056, and a protective mechanism 6057.

[0436] The transmission mechanism is mounted on the second fixed plate 6041;

[0437] The second fixing block 6054 is symmetrically arranged on the second fixing plate 6041;

[0438] The second rotating rod 6055 passes through the two second fixed blocks 6054 and is rotatably mounted on the two second fixed blocks 6054. A first pulley is mounted on the second rotating rod 6055, and the first pulley is located between the two second fixed blocks 6054.

[0439] Several grinding wheels 6056 are movably sleeved on the second rotating rod 6055, and a locking ring 6058 is installed on one side of the grinding wheel 6056, the locking ring 6058 being sleeved on the second rotating rod 6055;

[0440] The protective mechanism 6057 is installed on the second fixing plate 6041;

[0441] The transmission mechanism includes a third servo motor 60591, a second pulley, and a belt 60592;

[0442] The third servo motor 60591 is fixedly mounted on one side of the second fixing plate 6041;

[0443] The second pulley is fixed on the output shaft of the third servo motor 60591, and the second pulley is parallel to the central axis of the first pulley;

[0444] The belt 60592 is fitted onto the first pulley and the second pulley;

[0445] The transmission mechanism is used to drive the grinding wheel 6056 to rotate, thereby grinding the tray;

[0446] The second fixing block 6054 is used to support the second rotating rod 6055;

[0447] The third servo motor 60591 is used to drive the second pulley to rotate;

[0448] The belt 60592 is used to simultaneously drive the first pulley and the second rotating rod 6055 to rotate when the second pulley rotates.

[0449] In one embodiment, the protective mechanism 6057 includes a protective housing 60571 and a third fastener 60572;

[0450] The protective housing 60571 is movably sleeved on the grinding wheel 6056, and the protective housing 60571 has a through hole adapted to the locking ring 6058.

[0451] One end of the third fastener 60572 is fixedly disposed on the protective box 60571, and the other end of the third fastener 60572 is fixedly connected to the second fixing plate 6041;

[0452] Several suction pipes 60512 have their ends away from the second connecting pipe 60511 connected to different protective housings 60571.

[0453] One embodiment of the present invention provides a battery welding process, including:

[0454] The insulation strength test of the battery cell is carried out by the insulation withstand voltage tester 1. The qualified battery cell is sent to the pre-welding addressing equipment 2 through the tray. The pre-welding addressing equipment 2 locates the welding point of the battery cell on the tray. After the welding point is determined, the battery cell is sent to the CCS installation equipment 3.

[0455] During the adjustment of the CCD addressing camera 2033, the first X-axis moving mechanical slide 2021, the first Y-axis moving mechanical slide 2022, and the first Z-axis moving mechanical slide 2023 drive the CCD addressing camera 2033 to move along the X, Y, and Z axes to locate the welding point of the battery cell. The Master point 2051 is used for on-the-job verification to ensure the accuracy of the distance measurement and the correctness of the direction. The double-layer roller conveyor 204 transports the battery cell with the determined welding point and returns the tray.

[0456] The CCS is transported through the CCS installation equipment 3 and installed on the battery cell by manual welding. After installation, the product is sent out of the production line.

[0457] When the CCS-installed components are placed on the mounting platform 302, they are first leveled and positioned by the first moving mechanism 3041, and then the second moving mechanism is started for a second leveling. After manual welding and installation, the installed components are placed on the pallet of the second roller conveyor 309 by a robotic arm and transported.

[0458] The incoming battery cells are welded by welding equipment 4. The welded battery cells are then transported to post-weld dust removal and grinding equipment 5. Post-weld dust removal and grinding equipment 5 grinds the welded positions of the incoming battery cells while simultaneously removing dust.

[0459] Specifically, the laser emitter 4041 is driven to move back and forth along the X, Y and Z axes by the second X-axis moving mechanical slide 4031, the second Y-axis moving mechanical slide 4032 and the second Z-axis moving mechanical slide 4033 to weld the battery cell. The welded battery cell is then transported to the post-weld dust removal and polishing equipment 5. The second polishing mechanism 504 is driven to move by the third X-axis moving mechanical slide 5021 and the third Y-axis moving mechanical slide 5022 to polish the battery cell. During polishing, an external vacuum cleaner is connected to the first dust suction pipe 409 and the second dust suction pipe 505 for dust removal.

[0460] The pallet grinding and cleaning equipment 6 grinds and cleans the pallets after transporting the battery cells and sends them to the initial production line;

[0461] The grinding mechanism is moved by the horizontal moving slide 603, the third servo motor 60591 is started to drive the second pulley to rotate, and the belt 60592 drives the first pulley to rotate at the same time. The first pulley drives the second rotating rod 6055 and the grinding wheel 6056 to rotate to perform grinding. The dust and waste generated by grinding are sucked in through the dust suction pipe 60512. The connecting pipe is used to connect to an external vacuum cleaner to remove the generated dust and waste.

[0462] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A battery welding line, characterized in that, The application relates to a battery cell production line, which comprises the following components: an insulation voltage resistance testing machine; a pre-welding addressing device located on one side of the insulation voltage resistance testing machine, which is connected with the insulation voltage resistance testing machine through a transmission device; a CCS installation device located on one side of the pre-welding addressing device, which is connected with the pre-welding addressing device through a transmission device; a plurality of welding devices located on one side of the CCS installation device, which are connected with the CCS installation device through a transmission device; a post-welding dust removal and polishing device located on one side of the welding device, which is connected with the welding device through a transmission device; and a tray polishing and cleaning device located on one side of the post-welding dust removal and polishing device, which is connected with the post-welding dust removal and polishing device through a transmission device. The insulation voltage resistance testing machine is used for testing the insulation strength of a battery cell under a specified voltage. The pre-welding addressing device is used for positioning the welding points on the battery cell. The CCS installation device is used for transporting and welding the CCS on the battery cell. The welding device is used for welding the battery cell. The post-welding dust removal and polishing device is used for polishing the battery cell. The tray polishing and cleaning device is used for polishing and cleaning the tray. The tray polishing and cleaning device comprises a fixed frame, a conveying mechanism, a transverse moving slide table, an adjusting mechanism and a cleaning mechanism. The conveying mechanism is arranged in the fixed frame. The transverse moving slide table is installed on the fixed frame and is provided with two parallel sliding tracks and a connecting frame perpendicular to the two sliding tracks. The adjusting mechanism is installed on the connecting frame. The cleaning mechanism is installed on the adjusting mechanism and comprises a second dust removal mechanism and a third polishing mechanism. The second dust removal mechanism is installed on the adjusting mechanism and comprises a second connecting pipe and a plurality of dust suction pipes. The second connecting pipe is fixedly arranged on the adjusting member. The second connecting pipe is fixedly arranged on the adjusting member. The second connecting pipe is fixedly arranged on the adjusting member. The conveying mechanism is used for conveying the tray. The transverse moving slide table is used for moving the adjusting mechanism and the cleaning mechanism. The adjusting mechanism is used for adjusting the cleaning mechanism. The second dust removal mechanism and the third polishing mechanism are used for removing the substances on the surface of the tray. The second connecting pipe and the dust suction pipes are used for cooperating with each other and absorbing the dust generated during the polishing of the third polishing mechanism. The second fixed plate is used for supporting the adjusting member. The adjusting member is used for adjusting the second connecting pipe. The third polishing mechanism comprises a transmission mechanism, a second fixed block, a second rotating rod, a plurality of polishing wheels and a protection mechanism. The transmission mechanism is installed on the second fixed plate. The second fixed block is arranged on the second rotating rod. The plurality of polishing wheels are arranged on the second rotating rod. The protection mechanism is arranged on the second rotating rod. ​ ​ ​ ​ The second fixed blocks are symmetrically arranged on the second fixed plate; The second rotating rod penetrates through the two second fixed blocks and is rotatably arranged on the two second fixed blocks, and a first pulley is arranged on the second rotating rod and located between the two second fixed blocks; A plurality of polishing wheels are movably sleeved on the second rotating rod, and one side of each polishing wheel is provided with a locking ring which is sleeved on the second rotating rod; The protection mechanism is arranged on the second fixed plate; The transmission mechanism is used to drive the polishing wheels to rotate so as to polish the tray; The second fixed blocks are used to support the second rotating rod; The protection mechanism comprises a protection box body and a third fixing member; The protection box body is movably sleeved on the polishing wheel, and a through hole matched with the locking ring is formed in the protection box body; One end of the third fixing member is fixedly arranged on the protection box body, and the other end of the third fixing member is fixedly connected to the second fixed plate; The ends of a plurality of dust suction pipes away from the second connecting pipe are respectively connected to different protection box bodies.

2. The battery welding line of claim 1, wherein, The pre-welding addressing device comprises: a support table; a sliding assembly installed on the support table, the support table being symmetrically arranged at the bottom of the sliding assembly; the sliding assembly comprising a first X-axis moving mechanical sliding table, a first Y-axis moving mechanical sliding table and a first Z-axis moving mechanical sliding table; the first X-axis moving mechanical sliding table being symmetrically arranged on the support table and used to drive the first Z-axis moving mechanical sliding table to move along the X-axis; the first Y-axis moving mechanical sliding table being symmetrically arranged on the movable end of the first Z-axis moving mechanical sliding table and used to drive the external component to move along the Y-axis; the first Z-axis moving mechanical sliding table being installed on the movable end of the first X-axis moving mechanical sliding table through a sliding support frame and used to drive the first Y-axis moving mechanical sliding table to move along the Z-axis; a visual component installed on the first Y-axis moving mechanical sliding table; a double-layer roller bed conveyor located between the two support tables; the support table being used to support the sliding assembly; the first X-axis moving mechanical sliding table, the first Y-axis moving mechanical sliding table and the first Z-axis moving mechanical sliding table respectively driving the visual component to move along the X-axis, the Y-axis and the Z-axis; the visual component being used to find the welding points; the double-layer roller bed conveyor being used to transport the external tray back and forth.

3. The battery welding production line of claim 2, wherein the visual component comprises a laser range finder, a first fixing member, a CCD addressing camera, a connecting member and a light source adjusting ring; the laser range finder is arranged on the two first Y-axis moving mechanical sliding tables through the first fixing member; the CCD addressing camera is fixedly arranged on the first fixing member; the connecting member is fixedly arranged on the first fixing member; the light source adjusting ring is fixedly arranged at the bottom of the connecting member; a first ranging plate is symmetrically fixedly arranged on the support table, and a protective cover is fixedly arranged on the support table; a plurality of Master points are arranged on the first ranging plate; The laser range finder is used for testing the distance of the battery; The CCD addressing camera is used for confirming the welding position; The connecting piece is used for connecting the light source adjusting ring and the first fixing piece; The light source adjusting ring is used for adjusting to a better lighting position to ensure accurate positioning of the welding point position; The Master point is used for opening class verification to ensure the accuracy of distance measurement and the correctness of direction.

4. The battery welding line of claim 1, wherein, The CCS installation device comprises: A first fixed frame; An installation table in the first fixed frame; A plurality of sets of bearing mechanisms fixedly arranged on the installation table; A plurality of sets of push flat assemblies installed on the installation table and below the bearing mechanisms; A first carrying mechanical arm on one side of the installation table; A second carrying mechanical arm on one side of the installation table; A first positioning mechanism on one side of the installation table; The first positioning mechanism comprises a base, a first air cylinder and a first movable block; The first air cylinder is fixedly arranged on the base; The first movable block is fixedly arranged on the output end of the first air cylinder; The first fixed frame is used to isolate external workers and prevent workers from entering the working area of the mechanical arm; The installation table is used for the mechanical arm to install the CCS assembly; The bearing mechanism is used to place the to-be-installed CCS assembly transported by the mechanical arm; The push flat assembly is used to push flat the CCS installed assembly; The first positioning mechanism is used to push flat the tray transporting the installed CCS assembly to complete positioning; The first carrying mechanical arm is used to transport the CCS assembly to be installed; The second carrying mechanical arm is used to transport the installed CCS assembly.

5. The battery welding production line according to claim 4, wherein The bearing mechanism comprises a plurality of support columns, a support plate and a plurality of limiting plates; A plurality of support columns are fixedly arranged on the installation table; The support plate is fixedly arranged on the plurality of support columns; One side of a plurality of limiting plates is fixedly arranged on one side of the support plate, and the height of the limiting plate is greater than the height of the support plate; The push flat assembly comprises a first moving mechanism and a second moving mechanism; The first moving mechanism and the second moving mechanism are arranged on the installation table; The first moving mechanism and the second moving mechanism are below the support plate; The support plate is provided with a slide adapted to the first moving mechanism and the second moving mechanism, and the moving end of the first moving mechanism and the second moving mechanism is higher than the support plate; The support column is used to support the support plate, and the support plate forms a hollow chamber with the installation table through the support column, and the first moving mechanism and the second moving mechanism are located in the hollow chamber; The support plate is used to place the CCS assembly to be installed; The limiting plate is used to prevent the CCS assembly from falling when it is pushed; The first moving mechanism is used to push the CCS assembly placed on the support plate horizontally; The second moving mechanism is used for longitudinally pushing the CCS assembly placed on the support plate, and the CCS assembly is pushed flat by the pushing of the first moving mechanism and the second moving mechanism. 6.The battery welding production line of claim 4, wherein, The first fixed frame is internally provided with a first roller bed conveyor and a second roller bed conveyor; The first roller bed conveyor is located on one side of the mounting table, and the first roller bed conveyor extends out of the first fixed frame; The second roller bed conveyor is located on the side opposite to the first roller bed conveyor of the mounting table, and the second roller bed conveyor extends out of the first fixed frame; The first roller bed conveyor is used for transporting the CCS assembly that needs to be installed; The second roller bed conveyor is used for transporting the tray carrying the installed CCS assembly; The first roller bed conveyor and the second roller bed conveyor are also used for the transfer and transportation of products between devices; The base is located on one side of the second roller bed conveyor.

7. The battery welding line of claim 1, wherein, The welding equipment comprises: a rack base; a fixed frame fixedly arranged on the top of the rack base, the fixed frame being fixedly provided with a placing table; a third moving mechanism installed on the placing table, the third moving mechanism comprising a second X-axis moving mechanical slide table, a second Y-axis moving mechanical slide table and a second Z-axis moving mechanical slide table, the second X-axis moving mechanical slide table being installed on the placing table, the second Y-axis moving mechanical slide table being installed on the second X-axis moving mechanical slide table, and the second Z-axis moving mechanical slide table being installed on the second Y-axis moving mechanical slide table; a welding mechanism installed on the third moving mechanism, the welding mechanism comprising a laser emitter, the laser emitter being installed on the second Z-axis moving mechanical slide table, the laser emitter being fixedly provided with a protective cover, and one side of the protective cover being fixedly provided with an exhaust pipe; a feeding mechanism arranged in the middle of the rack base, the feeding mechanism comprising a third roller bed conveyor arranged in the middle of the rack base; a second positioning mechanism installed on the fixed frame; a second distance measuring assembly installed on the fixed frame; The fixed frame is used for supporting the placing table. The second X-axis moving mechanical slide table, the second Y-axis moving mechanical slide table and the second Z-axis moving mechanical slide table are used for driving the laser emitter to move along the X-axis, the Y-axis and the Z-axis. The protective cover is used for blocking the electric arc light and smoke during the welding of the laser generator. The exhaust pipe is connected to an external dust collector to suck out harmful gases and smoke generated during the welding. The third roller bed conveyor is used for transporting the battery cell that needs to be welded and transferring and transporting the products between devices. 8.The battery welding production line of claim 7, wherein, the fixed frame is provided with a first polishing mechanism; the first polishing mechanism comprising a second fixed frame, a first moving slide table, a sliding frame, a second moving slide table, a first lifting mechanism, a connecting block, a first servo motor and a polishing head. The second fixed frame is fixedly arranged on the rack base, and the second fixed frame is located in the fixed frame; The first movable sliding table is arranged on the second fixed frame; The sliding frame is slidably arranged on the sliding end of the first movable sliding table; The second movable sliding table is arranged on the sliding frame; The first lifting mechanism is arranged on the sliding end of the second movable sliding table; The connecting block is fixedly arranged on the output end of the first lifting mechanism; The first servo motor is fixedly arranged on the connecting block; The polishing head is fixedly arranged on the output shaft of the first servo motor, and the polishing head penetrates through the connecting block and extends out of the connecting block; The second fixed frame is used for supporting the first movable sliding table; The first movable sliding table is used for driving the sliding frame and the second movable sliding table to move; The second movable sliding table is used for driving the first lifting mechanism, the connecting block, the first servo motor and the polishing head to move; The first lifting mechanism is used for driving the connecting block, the first servo motor and the polishing head to lift and lower; The first servo motor is used for driving the polishing head to rotate so as to polish the tray.

9. The battery welding production line of claim 8, wherein The second positioning mechanism comprises a camera fixing seat and a CCD camera; The camera fixing seat is fixedly arranged on one side of the second Z-axis movable mechanical sliding table; The CCD camera is fixedly arranged on one side of the camera fixing seat; The second distance measuring assembly comprises a second air cylinder, a bearing plate, two distance measuring sensors and an adjusting device; The second air cylinder is fixedly arranged on one side of the second Y-axis movable mechanical sliding table; The bearing plate is fixedly arranged on the output end of the second air cylinder; The two distance measuring sensors are arranged on the flat section of the bearing plate; The adjusting device is arranged on the bearing plate; The adjusting device comprises a second distance measuring plate, a limiting block and a second movable block; The second distance measuring plate is fixedly arranged on the bearing plate; The limiting blocks are symmetrically arranged on one side of the second distance measuring plate, and a fixed rod is fixedly arranged between the two limiting blocks; The second movable block is sleeved on the fixed rod, and one of the distance measuring sensors is fixedly arranged on one side of the second movable block; A plurality of first dust suction pipes are arranged on the second fixed frame; A first connecting pipe is arranged on the fixed frame; The plurality of first dust suction pipes are arranged on the first connecting pipe; The CCD camera is used for finding the welding position; The second air cylinder is used for moving the bearing plate above the battery assembly; The distance measuring sensor is used for accurately determining the moving distance of the battery assembly; The adjusting device is used for driving one of the distance measuring sensors to move; The second distance measuring plate is used for preliminarily measuring the distance between the two distance measuring sensors; The limiting block is used for limiting the moving range of the distance measuring sensor; The second movable block is used for driving the distance measuring sensor to move; The plurality of first dust suction pipes are used for sucking the welding smoke; The first connecting pipe is used for connecting the external dust suction device.

10. The battery welding line of claim 1, wherein, The post-welding dust removal and polishing equipment comprises: a rack; A mobile module is installed on the frame, the frame is symmetrically and fixedly arranged at the bottom of the mobile module, the mobile module comprises a third X-axis mobile mechanical sliding table and a third Y-axis mobile mechanical sliding table, the third X-axis mobile mechanical sliding table is fixedly arranged on the two frames, and the third Y-axis mobile mechanical sliding table is installed on the third X-axis mobile mechanical sliding table; A first dust removal mechanism is installed on the sliding end of the third Y-axis mobile mechanical sliding table; A second polishing mechanism is installed on the sliding end of the third Y-axis mobile mechanical sliding table; The first dust removal mechanism comprises a second fixing member, a fixed pipe and a movable pipe; The second fixing member is fixedly arranged on the third Y-axis mobile mechanical sliding table, and a sliding groove is arranged on the second fixing member; The fixed pipe and the movable pipe are provided with fixing buckles, the fixed pipe and the movable pipe are fixedly arranged on the second fixing member through the fixing buckles, and the fixing buckles are fixedly arranged on the sliding groove; The third X-axis mobile mechanical sliding table is used for driving the third Y-axis mobile mechanical sliding table to move along the X-axis; The third Y-axis mobile mechanical sliding table is used for driving the first dust removal mechanism and the second polishing mechanism to move along the Y-axis; The second polishing mechanism is used for polishing the battery cell; The first dust removal mechanism is used for removing dust generated in polishing; The fixed pipe and the movable pipe are detachable, so that the positions of the fixed pipe and the movable pipe can be adjusted.

11. The battery welding production line of claim 10, wherein, a second dust suction pipe is symmetrically and fixedly arranged on the fixed pipe; a plurality of third dust suction pipes are installed on the movable pipe; a fourth roller bed conveyor is installed between the two frames, a first fixing plate is fixedly arranged on the fourth roller bed conveyor, and a second lifting mechanism is installed on the first fixing plate; the second lifting mechanism comprises a driving air cylinder, a second lifting plate and a lifting sensor; the driving air cylinder is fixedly arranged on the first fixing plate; the second lifting plate is fixedly arranged on the output shaft of the driving air cylinder; the lifting sensor is fixedly arranged on the second lifting plate; the second dust suction pipe and the third dust suction pipe are used for absorbing dust generated in polishing; the fourth roller bed conveyor is used for transporting the tray and transferring and transporting products between devices; the driving air cylinder is used for driving the second lifting plate to ascend and descend, so that the height of the material can be adjusted; the lifting sensor is used for sensing when the second lifting plate is in place, so that the lifting can be guaranteed to be in place.

12. The battery welding production line of claim 10, wherein, the second polishing mechanism comprises a plurality of first fixing blocks, a second servo motor, a first rotating rod, a polishing brush and a dust suction cover; the plurality of first fixing blocks are fixedly arranged on the sliding end of the third Y-axis mobile mechanical sliding table; the second servo motor is fixedly arranged on the first fixing block; the first rotating rod is fixedly arranged on the output shaft of the second servo motor; the polishing brush is fixedly arranged on the end of the first rotating rod away from the second servo motor; The dust cover is fixedly arranged at the bottom of the first fixed block and sleeved on the first rotating rod; The first fixed block is used for supporting the second servo motor; The second servo motor is used for driving the first rotating rod and the polishing brush to rotate; The dust cover is used for reducing dust generated during polishing.

13. The battery welding line of claim 1, wherein: The transmission mechanism comprises a third servo motor, a second pulley and a belt; The third servo motor is fixedly arranged on one side of the second fixed plate; The second pulley is fixed on the output shaft of the third servo motor, and the second pulley is parallel to the central shaft of the first pulley; The belt is sleeved on the first pulley and the second pulley; The third servo motor is used for driving the second pulley to rotate; The belt is used for driving the first pulley and the second rotating rod to rotate simultaneously when the second pulley rotates.

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