A battery pack PACK assembly detection process and equipment

Abstract

The present invention discloses a battery pack PACK assembly detection process and equipment, including: a three-axis glue coating mechanism, a cylinder flattening mechanism, camera detection and dimensional inspection, a robot welding mechanism, EOL and charge and discharge testing, a cantilever crane for loading, and a KBK gantry for unloading are used in this application. The process is more advanced and stable in production and can be put into production operation for a long time, improving labor productivity, product quality, and labor environment in large-scale production. Our entire production line also uses RFID to trace and locate the product position, and products are scanned for loading and unloading, facilitating the query of products in each link, improving product quality, and tracing the product source.

Description

Technical Field

[0001] The present invention relates to the technical field of battery assembly, and in particular to a battery pack PACK assembly detection process and equipment. Background Art

[0002] In recent years, China's new energy vehicle industry has advanced steadily under the dual favorable conditions of policies and the market. As the core component, power batteries have received increasing market attention. As is well known, the most core technology of new energy vehicles is the "three electrics", namely batteries, electronic control, and motors. As one of the three core components of electric vehicles, the battery shoulders the important task of the driving range of electric vehicles. The power battery used in electric vehicles is a battery with the characteristics of high voltage, high energy, high capacity, and high density. Such a battery is formed by connecting multiple single cells in series to form a battery pack.

[0003] Currently, the lithium battery PACK process mostly uses simple steps for packaging, and the production process is extremely irregular. Therefore, problems such as poor electrical conductivity of the single cells and leakage of the single cells often occur.

[0004] Traditional production models often use manual methods, without clear steps in the process. Many process steps are inevitably defective due to being completed manually, and the accuracy cannot be accurately controlled, nor can the production rhythm be controlled at all. Moreover, during the production process, due to the heavy weight of the modules, it is very troublesome during handling and transportation, and it is not conducive to data traceability during the process, failing to achieve the effect of subsequent tracking. Therefore, it is very necessary to design a new production equipment group to solve problems such as irregularity and data chaos. Summary of the Invention

[0005] The purpose of the present invention is to provide a battery pack PACK assembly detection process and equipment.

[0006] To achieve the above purpose, the present invention adopts the following content:

[0007] A battery pack PACK assembly detection process and equipment includes the following steps:

[0008] (1) The box enters the head end of the production line;

[0009] (2) Perform a waterway airtightness test;

[0010] (3) Apply thermal conductive glue to the box, and apply the glue in the XY plane inside the box through a three-axis glue application device;

[0011] plane;

[0012] (4) Place the battery packs into the box one by one through a hoisting mobile arm to form a module, and flatten and tighten the module;

[0013] (5) Perform pole addressing and polarity detection on the module through visual inspection, and clean the surface of the pole through a laser.

[0014] (6) Manually install the bar piece tooling and place the bar piece.

[0015] (7) The module enters the BSB welding station for welding.

[0016] (8) Route the sampling line for the module and perform laser welding on the FPC nickel sheet.

[0017] (9) Perform post-welding cleaning and manual inspection on the module.

[0018] (10) The module enters the tightening station and the testing station for inspection, and then is taken offline after PACK packaging.

[0019] It realizes that: This application uses a three-axis glue coating mechanism, a cylinder flattening mechanism, camera detection and dimensional inspection, a robot welding mechanism, EOL and charge and discharge testing, a cantilever crane for loading, and a KBK gantry for unloading. The process is more advanced and stable in production, and can be put into production operation for a long time. It improves labor productivity, product quality, and labor environment in large-scale production. Our entire production line also uses RFID to trace and locate the product position, and the product will be scanned for loading and unloading, which is convenient for querying products in each link, improving product quality and tracing the product source.

[0020] Preferably, the welding in step (7) is as follows: The module enters the station, and the robot drives the camera to take pictures of the front and rear end plate holes of the module; the position of the taken end plate holes is compared with the position calibrated by the pole addressing in the previous station to restore the position of the battery cell poles; the servo module drives the copper nozzle tooling to the head of the module, presses down on the first group of battery cell poles, and at the same time the robot drives the galvanometer to move to the position above the pole to be welded for welding.

[0021] Preferably, the FPC nickel sheet laser welding in step (8) includes: welding the nickel sheet through a laser to form a series connection of the current between each module.

[0022] Preferably, a battery pack PACK assembly and detection device includes: a transport line, and a transport pallet is arranged on the transport line; along the transport direction on the transport line, there are successively arranged:

[0023] A waterway airtight test bench, which is composed of aluminum materials, and is provided with a lighting lamp, a socket, and a waterway airtight test gun on the bench body, and performs a sealing test on the inside of the box manually.

[0024] Thermal conductive glue coating mechanism, the thermal conductive glue coating mechanism includes: a pallet lifting assembly, a glue bucket assembly and a glue coating assembly; the pallet lifting assembly is driven by a cylinder to move up and down, and a multi-roller contact member is provided on one side; the glue bucket assembly is arranged on the front side of the pallet lifting assembly, and the glue coating assembly is arranged above the pallet lifting assembly and is located in the XYZ three-axis movement to coat the glue in the glue bucket assembly onto the inside of the box body;

[0025] Battery pack hoisting mechanism, the battery pack hoisting mechanism hoists the strip-shaped battery packs into the box body one by one;

[0026] Module flattening mechanism, the output end of the module flattening mechanism is provided with a contact plate formed by arranging a plurality of contact blocks, so that each contact block corresponds to a battery cell in the battery pack; a buffer column is arranged between the contact plate and the output end of the module flattening mechanism;

[0027] Pole column addressing mechanism, the pole column addressing mechanism takes pictures of the positions of the pole columns of the battery pack through the camera at the output end and analyzes them;

[0028] Pole column cleaning mechanism, the pole column cleaning mechanism performs laser cleaning through the laser at the output end;

[0029] Bar piece mounting table, the bar piece mounting table is composed of aluminum materials, and bar piece mounting tools are provided on the table body, and the bar pieces are mounted on the battery pack manually;

[0030] BSB welding station, the BSB welding station has a camera shooting module driven by a robot and a copper nozzle welding head driven by a three-axis servo to weld the bar pieces. The copper nozzle welding head has a welding cavity, and a first pipe is arranged on the side wall of the welding cavity facing the outside; two parallel welding head connectors are arranged on both sides in the welding cavity, and second pipes are arranged on both of the connectors, and the second pipes bend through the side wall of the welding cavity and are parallel to the first pipe; each welding head connector passes through the bottom plate of the welding cavity and communicates with two copper nozzle contact heads; the copper nozzle contact heads are connected to the bottom plate of the welding cavity through elastic members and are communicated with the welding head connectors through pipes on the side wall, so that the copper nozzle contact heads float and are always connected to the welding head connectors; a power pipe is connected to the welding head connectors;

[0031] A new automated glue coating assembly is designed, which can accurately coat the glue onto the inside of the box body, improving the manufacturing process. A new copper nozzle welding head is designed, and multi-pipe heat dissipation and floating copper nozzle contact heads are designed. When welding and connecting the battery packs in series, the stability of the series connection can be ensured, avoiding the breakage of the series connection of the battery packs and affecting the service life of the entire battery pack.

[0032] Nickel sheet welding mechanism, the nickel sheet welding mechanism is provided to weld the surface of the three-axis servo pair module;

[0033] Post-welding cleaning table, a cleaning gun head is provided on the post-welding cleaning table to manually clean the surface of the module;

[0034] Inspection and packaging table, the inspection and packaging table includes: manual inspection table and gantry hoisting; the gantry hoisting is located above the manual inspection table, and the module is hoisted into the packing box through the hook at the output end.

[0035] Preferably, the battery pack hoisting mechanism includes: a boom, a sling and a protection rod assembly; four slings are provided below the boom, and a protection rod assembly is connected below the slings. The protection rod assembly clamps the battery pack and rotates to the transportation line through the boom.

[0036] Preferably, the protection rod assembly includes: a hanging plate, a suction head located below the hanging plate, a pumping power pump located above the hanging plate, and clamping arms located on both sides of the hanging plate; the suction heads are several and arranged in a straight line, and are connected to the hanging plate through a slide rail; the pumping power pump is connected to the suction head; the clamping arms are hinged to the side surface of the hanging plate and are provided with strip-shaped cylinders. When the strip-shaped cylinders work, the clamping arms surround and clamp the battery pack.

[0037] Preferably, the transportation line includes: a transportation rack with a double-layer structure, elevators located at both ends of the transportation rack; each layer of the transportation rack is provided with a sliding chain and is driven to rotate by a motor; lifting cylinders and lifting support arms are provided on both sides inside the elevator. When the pallet slides into the lifting support arm, the lifting cylinder moves to switch the pallet on the double-layer structure of the transportation rack.

[0038] 1. This application uses a three-axis glue coating mechanism, a cylinder flattening mechanism, camera detection and dimensional inspection, a robot welding mechanism, EOL and charge and discharge testing, a cantilever crane for loading onto the line, and a KBK gantry for unloading. The process is more advanced and stable in production, and can be put into production operation for a long time. It improves labor productivity, product quality, and labor environment in large-scale production. Our entire production line also uses RFID to trace and locate the product position. Products are scanned for loading onto and unloading from the line, which is convenient for querying products in each link, improving product quality and tracing the product source.

[0039] 2. This application designs a new automated glue coating component, which can accurately apply glue to the inside of the box, improving the manufacturing process.

[0040] 3. The present application designs a brand-new copper nozzle welding head, with multi-channel heat dissipation and a floating copper nozzle contact head. When welding and connecting battery packs in series, it can ensure the stability of the series connection, avoid the breakage of the series connection of battery packs, and affect the service life of the entire battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The following further elaborates in detail the specific implementation manners of the present invention with reference to the accompanying drawings;

[0042] Figure 1 is a schematic structural diagram of the water-tight test bench of a battery pack PACK assembly and testing device of the present invention from the waterway airtight test bench to the battery pack hoisting mechanism section;

[0043] Figure 2 is a schematic structural diagram of the battery pack hoisting mechanism of a battery pack PACK assembly and testing device of the present invention to the barium piece installation table section;

[0044] Figure 3 is a schematic structural diagram of the barium piece installation table of a battery pack PACK assembly and testing device of the present invention to the nickel piece welding mechanism;

[0045] Figure 4 is a schematic structural diagram of the post-welding cleaning table and the inspection and packaging table of a battery pack PACK assembly and testing device of the present invention;

[0046] Figure 5 is a schematic structural diagram of the inspection and packaging table of a battery pack PACK assembly and testing device of the present invention;

[0047] Figure 6 is a schematic structural diagram of the transport line of a battery pack PACK assembly and testing device of the present invention;

[0048] Figure 7 is a schematic structural diagram of the thermal conductive adhesive coating mechanism of a battery pack PACK assembly and testing device of the present invention;

[0049] Figure 8 is a schematic structural diagram of the battery pack hoisting mechanism of a battery pack PACK assembly and testing device of the present invention;

[0050] Figure 9 is a schematic structural diagram of the protection rod assembly of a battery pack PACK assembly and testing device of the present invention;

[0051] Figure 10 is a schematic structural diagram of the module flattening mechanism of a battery pack PACK assembly and testing device of the present invention;

[0052] Figure 11 is a schematic structural diagram of the abutting plate of the module flattening mechanism of a battery pack PACK assembly and testing device of the present invention;

[0053] Figure 12 It is a schematic structural diagram of the BSB soldering station of a battery pack PACK assembly detection device of the present invention;

[0054] Figure 13 It is a schematic structural diagram of the copper nozzle soldering head of a battery pack PACK assembly detection device of the present invention;

[0055] Figure 14 It is a schematic bottom view structural diagram of the copper nozzle soldering head of a battery pack PACK assembly detection device of the present invention;

[0056] Figure 15 It is a schematic internal structural diagram of the copper nozzle soldering head of a battery pack PACK assembly detection device of the present invention;

[0057] In the figure, each reference numeral is:

[0058] 1 - Transport line, 101 - Transport rack, 102 - Hoist, 2 - Transport pallet, 3 - Waterway airtight test bench, 4 - Thermal conductive glue coating mechanism, 401 - Pallet lifting assembly, 402 - Glue bucket assembly, 403 - Glue coating assembly, 404 - Multi - roller abutting part, 5 - Battery pack hoisting mechanism, 501 - Boom, 502 - Suspension cable, 503 - Protective rod assembly, 5031 - Suspension plate, 5032 - Suction head, 5033 - Air extraction power pump, 5034 - Clamping arm, 6 - Module flattening mechanism, 601 - Abutting plate, 602 - Abutting block, 603 - Buffer column, 7 - Pole addressing mechanism, 8 - Pole cleaning mechanism, 9 - B - piece mounting table, 10 - BSB soldering station, 1001 - Camera shooting module, 1002 - Copper nozzle soldering head, 10021 - Welding cavity, 10022 - First pipeline, 10023 - Soldering head connecting part, 10024 - Second pipeline, 10025 - Copper nozzle contact head, 10026 - Elastic part, 11 - Nickel sheet soldering mechanism, 12 - Post - welding cleaning table, 13 - Detection and packaging table, 1301 - Manual detection table, 1302 - Gantry hoisting. Detailed implementation manners

[0059] In order to explain the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments. Those skilled in the art should understand that the specific content described below is illustrative rather than restrictive, and should not be used to limit the protection scope of the present invention.

[0060] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0061] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "set" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] As Figures 1 to 15 shown, a battery pack PACK assembly detection process and equipment include the following steps:

[0063] (1) The box body enters the head end of the production line;

[0064] (2) Perform a waterway airtight test;

[0065] (3) Apply thermal conductive glue to the box body, and apply the glue within the XY plane inside the box body through a three-axis glue application device;

[0066] (4) Place the battery packs into the box body one by one through the hoisting moving arm to form a module, and flatten and tighten the module;

[0067] (5) Perform pole addressing and polarity detection on the module through visual inspection, and clean the surface of the poles through a laser;

[0068] (6) Manually install the tab tooling and place the tabs;

[0069] (7) The module enters the BSB welding station for welding; the welding at the welding station is as follows: the module enters the station, and the robot drives the camera to take pictures of the front and rear end plate holes of the module; the position of the taken end plate holes is compared with the position calibrated by the pole addressing in the previous station to restore the position of the cell poles; the servo module drives the copper nozzle tooling to the head of the module, presses down on the first group of cell poles, and at the same time the robot drives the galvanometer to move to the position above the pole to be welded for welding;

[0070] (8) Route the sampling line for the module and perform FPC nickel sheet laser welding; the FPC nickel sheet laser welding includes: welding the nickel sheets through a laser to form a series connection of the current between each module;

[0071] (9) Clean the module after welding and conduct manual inspection;

[0072] (10) The module enters the tightening station and the testing station for inspection, and then is taken offline after PACK packaging.

[0073] Further, a battery pack PACK assembly and inspection device includes: a transport line, and the transport line includes: a transport rack with a double-layer structure, and elevators located at both ends of the transport rack; Each layer of the transport rack is provided with a sliding chain and is driven to rotate by a motor; On both sides inside the elevator, there are lifting cylinders and lifting support arms. When the pallet slides into the lifting support arm, the lifting cylinder moves to switch the pallet on the double-layer structure of the transport rack;

[0074] There is a transport pallet arranged on the transport line; Along the transport direction on the transport line, there are successively arranged:

[0075] A waterway airtight test bench, which is composed of aluminum materials, and on the bench body, there are a lighting lamp, a socket, and a waterway airtight test gun for manually conducting a sealing test on the inside of the box;

[0076] A thermal conductive glue coating mechanism, and the thermal conductive glue coating mechanism includes: a pallet lifting component, a glue bucket component, and a glue coating component; The pallet lifting component is driven by a cylinder to move up and down, and on one side, there are multi-roller abutting parts; The glue bucket component is arranged on the front side of the pallet lifting component, and the glue coating component is arranged above the pallet lifting component and moves in the XYZ three axial directions to coat the glue in the glue bucket component inside the box;

[0077] A battery pack hoisting mechanism, which hoists the strip-shaped battery packs into the box one by one; The battery pack hoisting mechanism includes: a boom, a sling, and a protection rod component; There are four slings arranged below the boom, and a protection rod component is connected below the sling. The protection rod component clamps the battery pack and rotates to the transport line through the boom; The protection rod component includes: a suspension plate, a suction head located below the suspension plate, a suction power pump located above the suspension plate, and clamping arms located on both sides of the suspension plate; The suction heads are several and arranged in a straight line and are connected to the suspension plate through a slide rail; The suction power pump is connected to the suction head; The clamping arms are hinged to the side of the suspension plate and are provided with strip-shaped cylinders. When the strip-shaped cylinders work, the clamping arms surround and clamp the battery pack.

[0078] A module flattening mechanism, and at the output end of the module flattening mechanism, there is an abutting plate formed by arranging a plurality of abutting blocks, so that each abutting block corresponds to a battery cell in the battery pack; A buffer column is arranged between the abutting plate and the output end of the module flattening mechanism;

[0079] The pole column addressing mechanism, which takes pictures of the positions of the battery pack pole columns through the camera at the output end and analyzes them;

[0080] The pole column cleaning mechanism, which performs laser cleaning through the laser at the output end;

[0081] The barium piece mounting table, which is composed of aluminum materials and is provided with barium piece mounting tools on the table body, and the barium piece is mounted on the battery pack manually;

[0082] The BSB welding station, which has a camera shooting module driven by a robot and a copper nozzle welding head driven by a three-axis servo to weld the barium piece. The copper nozzle welding head has a welding cavity, and the side wall of the welding cavity is provided with a first pipeline towards the outside; there are two parallel welding head connectors on both sides in the welding cavity, and second pipelines are arranged on both of the connectors, and the second pipelines bend through the side wall of the welding cavity and are parallel to the first pipeline; each welding head connector passes through the bottom plate of the welding cavity and communicates with the two copper nozzle contact heads; the copper nozzle contact heads are connected to the bottom plate of the welding cavity through elastic members and are communicated with the welding head connectors through pipelines on the side wall, so that the copper nozzle contact heads float and are always connected to the welding head connectors; a power pipeline is connected to the welding head connectors;

[0083] The nickel piece welding mechanism, which is provided with a three-axis servo to weld the surface of the module;

[0084] The post-welding cleaning table, which is provided with cleaning gun heads on it to clean the surface of the module manually;

[0085] The inspection and packaging table, which includes: an artificial inspection table and a gantry hoisting device; the gantry hoisting device is located above the artificial inspection table, and hoists the module into the packing box through the hook at the output end.

[0086] This application uses a three-axis glue coating mechanism, a cylinder flattening mechanism, camera detection and dimensional inspection, a robot welding mechanism, EOL and charge-discharge testing, a cantilever crane for loading, and a KBK gantry for unloading. The process is more advanced and stable in production, and can be put into production operation for a long time, improving labor productivity, product quality, and labor environment in large-scale production. Our entire production line also uses RFID to trace and locate the product position, and products are scanned for loading and unloading, facilitating the query of products in each link, improving product quality, and tracing the product source. A new automated glue coating component is designed to accurately apply glue to the inside of the box, improving the manufacturing process. A new copper nozzle welding head is designed, with multi-channel heat dissipation and a floating copper nozzle contact head. When welding and connecting battery packs in series, it can ensure the stability of the series connection, avoiding the breakage of the battery pack series connection and affecting the service life of the entire battery pack.

[0087] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is impossible to list all the implementation manners here. Any obvious changes or variations derived from the technical solutions of the present invention still fall within the protection scope of the present invention.

Claims

1. A battery pack PACK assembly detection device, characterized in that, Including: A transport line, on which are provided: A conveying pallet; along the transport direction on the transport line, there are successively arranged a waterway airtight test bench, which is composed of aluminum materials, and on the bench body, there are a lighting lamp, a socket, and a waterway airtight test gun, and the inside of the box is sealed and tested manually; A thermal conductive glue coating mechanism, which includes: a pallet lifting assembly, a glue bucket assembly, and a glue coating assembly; the pallet lifting assembly is driven by a cylinder to move up and down, and on one side, there is a multi-roller abutting member; the glue bucket assembly is arranged on the front side of the pallet lifting assembly, and the glue coating assembly is arranged above the pallet lifting assembly and moves in the XYZ three axial directions to coat the glue in the glue bucket assembly onto the inside of the box; A battery pack hoisting mechanism, which hoists the strip-shaped battery packs into the box one by one; A module flattening mechanism, at the output end of which there is an abutting plate formed by arranging a plurality of abutting blocks, so that each abutting block corresponds to a battery cell in the battery pack; between the abutting plate and the output end of the module flattening mechanism, there is a buffer column; A pole column addressing mechanism, which takes pictures of the positions of the pole columns of the battery pack through a camera at the output end and analyzes them; A pole column cleaning mechanism, which performs laser cleaning through a laser at the output end; A bar piece mounting table, which is composed of aluminum materials, and on the table body, there is a bar piece mounting tool, and the bar piece is mounted on the battery pack manually; A BSB welding station, which has a camera shooting module driven by a robot and a copper nozzle welding head driven by a three-axis servo to weld the bar piece. The copper nozzle welding head has a welding cavity, and on the side wall of the welding cavity, there is a first pipeline arranged towards the outside; on both sides inside the welding cavity, there are two parallel welding head connecting pieces, and on both of the welding head connecting pieces, there is a second pipeline, and the second pipeline bends through the side wall of the welding cavity and is parallel to the first pipeline; each welding head connecting piece passes through the bottom plate of the welding cavity and is communicated with two copper nozzle contact heads; the copper nozzle contact heads are connected to the bottom plate of the welding cavity through elastic members and are communicated with the welding head connecting pieces through pipelines on the side wall, so that the copper nozzle contact heads float and are always connected to the welding head connecting pieces; a power pipeline is connected to the welding head connecting piece; A nickel sheet welding mechanism, which is provided with a three-axis servo to weld the surface of the module; A post-welding cleaning table, on which a cleaning gun head is arranged to clean the surface of the module manually; An inspection and packaging table, which includes: a manual inspection table and a gantry hoisting; the gantry hoisting is located above the manual inspection table, and the module is hoisted into the packing box through a hook at the output end.

2. The battery pack PACK assembly detection device according to claim 1, characterized in that, The battery pack hoisting mechanism includes: a boom, a sling, and a protection rod assembly; there are four slings below the boom, and a protection rod assembly is connected below the slings. The protection rod assembly clamps the battery pack and is rotated to the transport line through the boom.

3. The battery pack PACK assembly detection device according to claim 2, characterized in that, The protective rod assembly includes: a suspension plate, a suction head located below the suspension plate, an air extraction power pump located above the suspension plate, and clamping arms located on both sides of the suspension plate; the suction heads are several and arranged in a straight line, and are connected to the suspension plate through a slide rail; the air extraction power pump is connected to the suction head; the clamping arms are hinged to the side surface of the suspension plate and are provided with strip-shaped cylinders, and when the strip-shaped cylinders work, the clamping arms surround and clamp the battery pack.

4. The battery pack PACK assembly detection device according to claim 1, characterized in that, The transport line includes: a transport rack with a double-layer structure, and elevators located at both ends of the transport rack; each layer of the transport rack is provided with a sliding chain and is driven to rotate by a motor; both sides inside the elevator are provided with lifting cylinders and lifting support arms, and when the pallet slides into the lifting support arms, the lifting cylinders move to switch the pallet on the double-layer structure of the transport rack.

5. A battery pack PACK assembly detection process for the battery pack PACK assembly detection device according to any one of claims 1-4, characterized in that, It includes the following steps: (1) The box enters the head end of the production line; (2) Perform a waterway airtight test; (3) Apply thermal conductive glue to the box, and apply the glue in the XY plane inside the box through a three-axis glue application device; (4) Place the battery packs into the box one by one through the hoisting moving arm to form a module, and flatten and tighten the module; (5) Perform pole addressing and polarity detection on the module through visual inspection, and clean the surface of the poles through a laser; (6) Manually install the bar piece tooling and place the bar pieces; (7) The module enters the BSB welding station for welding; (8) Route the sampling line for the module and perform FPC nickel sheet laser welding; (9) Clean the module after welding and perform manual inspection; (10) The module enters the tightening station and the testing station for inspection, and then goes offline after PACK packaging.

6. A battery pack PACK assembly and detection process according to claim 5, characterized in that The welding at the welding station in step (7) is as follows: the module enters the station, and the robot drives the camera to take pictures of the front and rear end plate holes of the module; the positions of the taken end plate holes are checked with the positions calibrated by the pole addressing in the previous station, and the positions of the cell poles are restored; the servo module drives the copper nozzle tooling to the head of the module, presses down on the first group of cell poles, and at the same time the robot drives the galvanometer scanner to move above the poles to be welded for welding.

7. A battery pack PACK assembly detection process according to claim 5, characterized in that, The FPC nickel sheet laser welding in step (8) includes: welding the nickel sheets through a laser to form a series connection of the current between the modules.

Images