A battery shell automatic assembly system

Abstract

The present invention relates to a battery assembly technology field, and specifically to an automatic battery shell assembly system. It includes a battery handling mechanism, a plasma cleaning mechanism, a code scanning mechanism, a material picking mechanism, a synchronous belt mechanism, a variable distance handling mechanism, multiple deformation transfer mechanisms, multiple robot handling mechanisms, multiple battery module carriers, multiple conveying mechanisms and a rack electrical control box. The above mechanisms are integrated on the upper surface of the rack electrical control box, and an electrical control system is integrated inside. The present invention can form a battery group by transporting, cleaning, scanning, conveying, and synchronously converting a number of batteries. After variable distance, deformation, robot handling, assembly, and transportation, the battery group in a horizontal state can be accurately converted to a vertical state, and the distance between adjacent batteries in the battery group can be changed, thereby adapting the distance between adjacent batteries in the battery module. All processes are fully automatic, efficient, and not prone to errors.

Description

Technical Field

[0001] The invention relates to the technical field of battery assembly, and in particular to an automatic battery shell assembly system. Background Art

[0002] With the rapid development of new energy vehicles and drones, batteries are being used more and more widely, especially cylindrical batteries. In new energy vehicles and drones, individual cylindrical batteries need to be assembled into battery modules in series and parallel to serve as the power source for vehicles and drones. The existing battery module assembly is usually done manually, which is inefficient, can only be adapted to small batch production, is prone to errors, and cannot form large-scale automation. Summary of the invention

[0003] The technical problem solved by the present invention is to provide a fully automatic battery shell assembly system with multiple assembly lines.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] A battery shell automatic assembly system, comprising:

[0006] A battery handling mechanism is provided with a plurality of handling stations for carrying batteries from one station to the next;

[0007] A plasma cleaning mechanism, used to clean dirt at both ends of the battery in the handling station;

[0008] A barcode scanning mechanism is used to record the barcode on each battery and upload it to the database;

[0009] A material taking mechanism, used to take the battery on the last station of the battery transport mechanism to the next process;

[0010] A synchronous belt mechanism, used to convey the batteries transported by the material taking mechanism and form a battery pack to wait for subsequent transport;

[0011] A variable distance transport mechanism, used for transporting the battery pack on the synchronous belt mechanism to the next process, wherein the variable distance mechanism is provided with a variable distance chuck, and the variable distance chuck changes the center distance between adjacent batteries of the transported battery pack;

[0012] A plurality of deformation transport mechanisms, used to transform the battery pack after the distance change by the distance change transport mechanism from a horizontal state to a vertical state, and move the battery pack to a designated position to wait for transport;

[0013] A plurality of manipulator transport mechanisms, used to transport the battery pack in a vertical state on the deformable transport mechanism to the next process;

[0014] A plurality of battery module carriers, wherein the battery module carriers are equipped with a battery module lower shell, and the manipulator transport mechanism transports a plurality of battery packs in a vertical state to the battery module lower shell to form a battery module, waiting for the subsequent manipulator to transport the battery module upper shell for assembly;

[0015] A plurality of conveying mechanisms for conveying the assembled battery module carrier to the next process;

[0016] The rack electric control box has the above-mentioned mechanism integrated on the upper surface and an electric control system integrated inside.

[0017] Furthermore, the battery handling mechanism includes the multiple handling stations, front and rear handling cylinders, multiple groups of upper and lower handling cylinders and a handling pallet. The handling pallet is arranged above each of the upper and lower handling cylinders. Battery slots for loading batteries are equidistantly opened on the upper surface of the handling pallet. The multiple groups of upper and lower handling cylinders drive the handling pallets to move up and down synchronously, drive the handling pallet upward to hold up the batteries on the handling station, retract downward to drive the handling pallet to place the batteries smoothly on the handling station, and the front and rear handling cylinders drive the multiple groups of upper and lower handling cylinders. Synchronous forward and backward movement, when the transport pallet holds up the battery of a workstation, the front and rear transport cylinders synchronously drive the multiple groups of upper and lower transport cylinders to drive the transport pallet to retract backward, thereby transporting the battery held up on the transport pallet from the previous workstation to the next workstation, when the transport pallet moves downward to place the loaded battery smoothly on the next workstation and reset it, the front and rear transport cylinders synchronously drive the multiple groups of upper and lower transport cylinders to drive the transport pallet to reset forward, preparing for the next battery transport, thereby realizing the transport of the battery from the previous workstation to the next workstation.

[0018] Furthermore, the transport station includes a loading station, a buffer station, a cleaning station, a code scanning station, and a material picking station. Carrying plates are symmetrically fixed inside on both sides of the loading station, the buffer station, the cleaning station, and the material picking station. The carrying plates are provided with equidistant battery slots for loading batteries. A number of rollers are symmetrically installed on both sides of the code scanning station. A single battery is loaded between the two rollers to drive the battery to roll. The loading station and the buffer station are located before the cleaning station. The cleaning station is located below the plasma cleaning mechanism, the code scanning station is located below the code scanning mechanism, and the material picking station is located below the material picking mechanism. Equidistant cleaning holes are provided on both sides of the cleaning station relative to the top of the equidistant battery slots, which are used for the plasma cleaning mechanism to clean both ends of the battery.

[0019] Preferably, buffers are provided at both the front and rear ends of the battery transport mechanism.

[0020] Furthermore, the plasma cleaning mechanism includes a front and rear cleaning servo module and left and right plasma cleaning machines. The front and rear cleaning servo module drives the left and right plasma cleaning machines to move forward and backward synchronously, thereby cleaning the dirt at both ends of the battery on the cleaning station.

[0021] Furthermore, the synchronous belt mechanism includes a synchronous belt streamline, a distance sensor is arranged at the front end of the synchronous belt streamline, and an anti-stacking component and a counting sensor are arranged at the rear end. The anti-stacking component is driven by a cylinder, and a baffle is arranged at the front end. The baffle covers the upper part of the rear end of the synchronous belt streamline to prevent the batteries conveyed by the synchronous belt streamline from causing stacking. The counting sensor is arranged on one side of the synchronous belt streamline at the lower end of the anti-stacking component to count the conveyed batteries and record the positions of the batteries. When the number and position of the batteries recorded by the counting sensor meet the requirements, the batteries under the anti-stacking component form a battery group, and the system guides the baffle of the anti-stacking component to withdraw from the synchronous belt streamline to make room for the variable distance conveying mechanism to convey the battery group.

[0022] Furthermore, the variable-pitch transport mechanism includes a front and rear transport servo module, a left and right transport servo module, an upper and lower transport cylinder and a variable-pitch chuck. The variable-pitch head absorbs the battery pack on the synchronous belt mechanism and changes the center distance between adjacent batteries in the transported battery pack to realize the variable-pitch process; the upper and lower transport cylinders drive the variable-pitch chuck to move up and down, and the front and rear transport servo module cooperates with the left and right transport servo module to drive the upper and lower transport cylinders to drive the variable-pitch chuck to move forward, backward, left and right to realize the transport process.

[0023] Furthermore, the variable pitch chuck includes a variable pitch chuck driving cylinder, a plurality of sliders, a variable pitch piece, a fixed stud, a slide rail and a chuck frame, a slider hole is opened in the middle of the chuck frame, the slide rail is fixed on both sides of the slider hole, the slider passes through the slider hole and is slidably connected with the slide rail, an independent suction head is fixed below the slider, and a corresponding independent suction head cylinder is fixed above the slider, a fixed circular screw hole corresponding to the fixed stud is opened at one end of the variable pitch piece, and a variable pitch waist-shaped hole for the fixed stud to move is opened at the other end, the fixed stud is symmetrically fixed on the slider, the fixed studs are connected to each other through the variable pitch piece to form two layers, and the variable pitch pieces connected to the fixed studs have the same direction, and the variable pitch chuck driving cylinder drives the first slider to move forward and backward, thereby driving the other sliders to slide forward and backward in the variable pitch waist-shaped hole through the variable pitch piece, thereby realizing the change of the center distance between adjacent batteries of the battery pack adsorbed by the suction head below.

[0024] Furthermore, the deformable conveying mechanism includes a deformable component and a transfer component, the deformable component includes a symmetrically arranged left jaw and a right jaw, the left and right jaws are symmetrically provided with equidistant battery slots, small magnets are provided in the middle of the battery slots, the left and right jaws are initially in a horizontal state, the variable pitch conveying mechanism transfers the battery pack in a horizontal state on the synchronous belt mechanism to the battery slot of the left jaw, the battery pack is adsorbed by the small magnet, the left and right jaws are driven by a cylinder to clamp synchronously in a vertical direction, thereby converting the battery pack in the horizontal state of the left jaw into a vertical state, and then the deformable component in the vertical state is transferred to the next workstation via the transfer component, and a buffer is provided on the transfer component.

[0025] Preferably, the deformation handling mechanism, the robot handling mechanism, the battery module carrier, and the conveying mechanism are respectively provided in two groups to form two groups of deformation handling, conveying, assembly and conveying lines.

[0026] The beneficial effects of the present invention are:

[0027] 1. Several batteries are transported, cleaned, scanned, transported, and synchronously formed into battery packs. After variable distance, deformation, robot handling, assembly and transportation, the horizontal battery pack can be accurately converted to a vertical state, and the distance between adjacent batteries in the battery pack can be changed to adapt to the distance between adjacent batteries in the battery module. All processes are fully automatic, efficient and not prone to errors.

[0028] 2. The deformation handling, transportation, assembly and conveying lines are set up in multiple groups respectively, which can further improve the efficiency of assembly and increase production capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a three-dimensional structural diagram of the present invention;

[0030] Figure 2 for Figure 1 A top view of

[0031] Figure 3 for Figure 1 The structural diagram marked as 1 in the figure;

[0032] Figure 4 for Figure 3 Hidden part of the structure diagram;

[0033] Figure 5 for Figure 1 The structure diagram marked as 2;

[0034] Figure 6 for Figure 1 The structural diagram marked as 4;

[0035] Figure 7 for Figure 1 The structural diagram marked as 5;

[0036] Figure 8 for Figure 1 The structural diagram marked as 6;

[0037] Fig. 9 for Figure 8 The structure diagram of the variable pitch chuck marked as 6.4;

[0038] Fig.10 for Fig. 9 The schematic diagram marked 6.43a in;

[0039] Fig.11 for Figure 1 The structural diagram marked as 7;

[0040] Fig.12 for Figure 1 The structural diagrams marked 9 and 10 in FIG.

[0041] The markings in the figure are:

[0042] 1. Battery handling mechanism, 1.1. Handling station, 1.11. Loading station, 1.12. Buffer station, 1.13. Cleaning station, 1.14. Scanning station, 1.15. Retrieving station, 1.2. Front and rear cylinders for handling, 1.3. Upper and lower cylinders for handling, 1.4. Handling pallet, 1.5. Buffer, 1.6a. Carrying plate, 1.6b. Roller;

[0043] 2. Plasma cleaning mechanism, 2.1. Cleaning front and rear servo modules, 2.2. Plasma cleaning machine;

[0044] 3. Scanning code organization;

[0045] 4. Material picking mechanism, 4.1. Left and right servo modules for picking, 4.2. Upper and lower cylinders for picking, 4.3. Picking chuck, 4.4. Limiting mechanism;

[0046] 5. Synchronous belt mechanism, 5.1. Synchronous belt streamline, 5.2. Distance sensor, 5.3. Anti-lamination component, 5.4. Counting sensor;

[0047] 6. Variable pitch transport mechanism, 6.1. Front and rear transport servo module, 6.2. Left and right transport servo module, 6.3. Up and down transport cylinder, 6.4. Variable pitch chuck, 6.41. Variable pitch chuck driving cylinder, 6.42. Sliding block, 6.43a. Variable pitch sheet, 6.43b. Fixing stud, 6.44. Slide rail, 6.45. Chuck rack, 6.46. Suction head, 6.47. Suction head cylinder;

[0048] 7. Deformation transport mechanism, 7.1. Deformation assembly, 7.11. Left clamping jaw, 7.12. Right clamping jaw, 7.2. Transfer assembly;

[0049] 8. Manipulator handling mechanism;

[0050] 9. Battery module carrier;

[0051] 10. Conveying mechanism;

[0052] 11. Rack electrical control box. DETAILED DESCRIPTION

[0053] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0054] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0055] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0056] A battery shell automatic assembly system. Figure 1 and Figure 2 As shown, it comprises: a battery handling mechanism 1, which is provided with a plurality of handling stations 1.1, and is used to carry batteries from one station to the next station;

[0057] Plasma cleaning mechanism 2, used to clean dirt on both ends of the battery in the handling station 1.1;

[0058] The barcode scanning mechanism 3 is used to record the barcode on each battery transferred from the handling station 1.1 and upload it to the database;

[0059] A material taking mechanism 4, used to take the battery on the last station of the battery transport mechanism 1 to the next process;

[0060] The synchronous belt mechanism 5 is used to convey the batteries transported by the material taking mechanism 4 and form a battery pack to wait for subsequent transportation;

[0061] The variable distance transport mechanism 6 is used to transport the battery pack on the synchronous belt mechanism 5 to the next process. The variable distance transport mechanism 6 is provided with a variable distance clamp 6.4. The variable distance clamp 6.4 changes the center distance between adjacent batteries of the transported battery pack;

[0062] A plurality of deformation transport mechanisms 7, used to transform the battery pack after the distance change by the distance change transport mechanism 6 from a horizontal state to a vertical state, and move it to a designated position to wait for transport;

[0063] A plurality of manipulator transport mechanisms 8 are used to transport the battery pack in a vertical state on the deformation transport mechanism 7 to the next process;

[0064] A plurality of battery module carriers 9, wherein the battery module carriers 9 are equipped with a battery module lower shell, and a manipulator transport mechanism 8 transports a plurality of battery packs in a vertical state to the battery module lower shell to form a battery module, waiting for a subsequent manipulator to transport the battery module upper shell for assembly;

[0065] A plurality of conveying mechanisms 10 for conveying the assembled battery module carriers 9 to the next process;

[0066] The rack electric control box 11 has the above-mentioned mechanism integrated on the upper surface and an electric control system integrated inside.

[0067] like Figure 3 and Figure 4 As shown, it is a three-dimensional structural diagram and an internal structural diagram of the battery handling mechanism 1, which includes multiple handling stations 1.1, front and rear handling cylinders 1.2, multiple groups of upper and lower handling cylinders 1.3 and a handling pallet 1.4. A handling pallet 1.4 is arranged above each upper and lower handling cylinder 1.3. Battery slots for loading batteries are evenly spaced on the upper surface of the handling pallet 1.4. The multiple groups of upper and lower handling cylinders 1.3 drive the handling pallet 1.4 to move up and down synchronously, drive the handling pallet 1.4 upward to hold up the batteries on the handling station 1.1, retract downward to drive the handling pallet 1.4 to place the batteries held up on the upper surface stably on the handling station 1.1, and the front and rear handling cylinders 1.2 drive the handling pallet 1.4 downward to hold up the batteries held up on the upper surface. Drive multiple groups of upper and lower transport cylinders 1.3 to move forward and backward synchronously. When the transport pallet 1.4 lifts up the battery of one station, the front and rear transport cylinders 1.2 synchronously drive multiple groups of upper and lower transport cylinders 1.3 to drive its transport pallet 1.4 to retract backward, thereby transporting the battery lifted on the transport pallet 1.4 from the previous station to the next station. When the transport pallet 1.4 moves downward to place the loaded battery smoothly on the next station and reset it, the front and rear transport cylinders 1.2 synchronously drive multiple groups of upper and lower transport cylinders 1.3 to drive its transport pallet 1.4 to reset forward, preparing for the next battery transportation, and reciprocating motion, thereby realizing the transportation of the battery pack from the previous station to the next station.

[0068] Preferably, Figure 4 As shown, the transport station of this embodiment is designed with five stations, namely, loading station 1.11, buffer station 1.12, cleaning station 1.13, code scanning station 1.14 and material picking station 1.15. The loading station 1.11 and buffer station 1.12 are arranged in front of the cleaning station 1.13, the cleaning station 1.13 is arranged directly below the plasma cleaning mechanism 2, the code scanning mechanism 1.14 is arranged directly below the code scanning mechanism 3, and the material picking station 1.15 is arranged directly below the material picking mechanism 4. The loading station 1.11 is used for loading batteries, and the buffer station 1.12 is used for buffering, waiting to be transported to the next station. When the battery is transported from the buffer station 1.12 to the cleaning station 1.13, the plasma cleaning machine 2 cleans the dirt at both ends of the battery on the cleaning station 1.13; when the battery is transported from the cleaning station 1.13 to the code scanning station 1.14, the code scanning mechanism 3 scans and records the battery on the code scanning station 1.14; when the battery is transported from the code scanning station 1.14 to the material picking station 1.15, the material picking mechanism 4 takes the battery on the material picking station 1.15 and transports it to the synchronous belt mechanism 5.

[0069] Corresponding to the five workstations, four upper and lower transport cylinders 1.3 are set and fixed on the same sliding plate at equal distances. The length of the transport pallet 1.4 set on the upper end of the upper and lower transport cylinders 1.3 is equal to or slightly less than the length of a single transport workstation. Each transport pallet 1.4 corresponds to a workstation, so the movement range of the four upper and lower transport cylinders 1.3 on the sliding plate is within the length range of a workstation. When the front and rear transport cylinders 1.2 drive the sliding plate to move forward and backward, the four upper and lower transport cylinders 1.3 on the sliding plate are synchronously driven to move forward and backward. The initial position of the transport pallet 1.4 on the first transport upper and lower cylinders 1.3 is below the buffer station 1.12 of the second station. When batteries are loaded in the loading station 1.11, the transport front and rear cylinders 1.2 drive the sliding plate to extend forward, thereby synchronously driving the four transport pallets to move forward, and the transport pallet 1.4 on the first transport upper and lower cylinders 1.3 moves to below the loading station of the first station. The transport upper and lower cylinders 1.3 drive the transport pallet 1.4 to move upward to lift the batteries in the loading station 1.11 and load them into the battery slots in the transport pallet 1.4. Then the transport front and rear cylinders 1.2 drive the sliding plate to retract backwards and transport the first transport pallet 1.4 in the lifting state to the buffer station 1.12. Then the transport upper and lower cylinders 1.3 retract downward synchronously, thereby transporting the batteries transported on the four transport pallets 1.4 to the next station.

[0070] Furthermore, the loading station 1.11, the buffer station 1.12, the cleaning station 1.13 and the material taking station 1.15 are symmetrically fixed with carrier plates 1.6a on both sides, and the carrier plates 1.6a are provided with equidistant battery slots for loading batteries. The code scanning station 1.14 is symmetrically installed with a number of rollers 1.6b on both sides, and a single battery is loaded between two rollers 1.6b, driving the battery to roll, so as to facilitate the code scanning mechanism 3 to scan and record the battery. The cleaning station 1.13 is provided with equidistant cleaning holes on both sides relative to the top of the equidistant battery slots, which are used for the plasma cleaning mechanism 2 to perform plasma cleaning on the dirt at both ends of the battery.

[0071] In order to better transport the batteries, buffers 1.5 are provided at the front and rear ends of the battery transport mechanism 1. When the front and rear transport cylinders 1.2 drive multiple upper and lower transport cylinders 1.3 to move forward, the front end buffer 1.5 provides a front buffer force. When the front and rear transport cylinders 1.2 drive multiple upper and lower transport cylinders 1.3 to move backward and retract, the rear end buffer 1.5 provides a rear buffer force.

[0072] like Figure 5 As shown, it is a three-dimensional structural diagram of the plasma cleaning mechanism 5, including the front and rear cleaning servo modules 2.1 and the left and right plasma cleaning machines 2.2. The front and rear cleaning servo modules 2.1 drive the left and right plasma cleaning machines 2.2 to move forward and backward synchronously, so as to clean the dirt at both ends of the battery on the cleaning station 1.3 through the cleaning holes on both sides of the cleaning station 1.13. After cleaning, it is transported to the scanning station 1.14, and the battery rotates on the scanning station, and the scanning mechanism 3 scans the barcode on the rolling battery. After scanning, the battery is transported to the material picking station 1.15, waiting to be taken away by the material picking mechanism 4.

[0073] like Figure 6 As shown, it is a three-dimensional structural diagram of the material picking mechanism 4, including a front and rear servo module 4.1 for picking up materials, an upper and lower cylinder 4.2 for picking up materials and a material picking chuck 4.3. A plurality of suction cups for picking up materials are equidistantly arranged on the material picking chuck 4.3, each of which is driven by a separate cylinder. The upper and lower cylinders 4.2 for picking up materials drive the material picking chuck 4.3 to move up and down, thereby adsorbing and releasing batteries. The front and rear servo module 4.1 for picking up materials drives the upper and lower cylinders 4.2 and the material picking chuck 4.3 to move forward and backward. A limiting mechanism 4.4 is arranged on the front and rear servo module 4.1 for picking up materials, which is used to accurately control the movement position of the front and rear servo module 4.1 for picking up materials, thereby realizing accurate transportation.

[0074] like Figure 7As shown, it is a three-dimensional structural diagram of the synchronous belt mechanism 5, including a synchronous belt streamline 5.1, a distance sensor 5.2 is arranged at the front end of the synchronous belt streamline 5.1, and an anti-stacking component 5.3 and a counting sensor 5.4 are arranged at the rear end. The anti-stacking component 5.3 is driven by a cylinder, and a baffle is arranged at the front end. The baffle covers the upper part of the rear end of the synchronous belt streamline 5.1 to prevent the batteries conveyed by the synchronous belt streamline 5.1 from causing stacking. The counting sensor 5.4 is arranged on one side of the synchronous belt streamline at the lower end of the anti-stacking component 5.3, and is used to count the conveyed batteries and record the positions of the batteries; when the number and position of the batteries recorded by the counting sensor 5.4 meet the requirements, the batteries below the anti-stacking component 5.3 form a battery pack, and the system guides the baffle of the anti-stacking component 5.3 to withdraw from the synchronous belt streamline 5.1 to make room for the variable distance conveying mechanism 6 to convey the battery pack. When the distance sensor 5.2 detects that there is a battery at the designated position of the synchronous belt streamline 5.1, the material taking mechanism 4 stops moving the battery to the synchronous belt streamline 5.1. When the battery at the designated position on the synchronous belt streamline 5.1 is moved away, the material taking mechanism 4 continues moving the battery to the synchronous belt streamline 5.1 for transmission.

[0075] like Figure 8 As shown, it is a three-dimensional structural diagram of the deformable transport mechanism 7, including a front and rear transport servo module 6.1, a left and right transport servo module 6.2, an upper and lower transport cylinder 6.3 and a variable pitch chuck 6.4. The variable pitch head 6.4 absorbs the battery pack on the synchronous belt mechanism 5 and changes the center distance between adjacent batteries of the transported battery pack to realize the variable pitch process; the upper and lower transport cylinder 6.3 drives the variable pitch chuck 6.4 to move up and down, and the front and rear transport servo module 6.1 and the left and right transport servo module 6.2 cooperate to drive the upper and lower transport cylinder 6.3 to drive the variable pitch chuck 6.4 to move forward, backward, left and right to realize the transport process.

[0076] like Fig. 9As shown, it is a three-dimensional structural diagram of the variable pitch chuck 6.4, including a variable pitch chuck driving cylinder 6.41, a plurality of sliders 6.42, a variable pitch piece 6.43a, a fixing stud 6.43b, a slide rail 6.44 and a chuck frame 6.45. A slider hole is opened in the middle of the chuck frame 6.45, and the slide rail 6.44 is fixed on both sides of the slider hole. The slider 6.42 passes through the slider hole and is slidably connected to the slide rail 6.44. The slider 6.42 is fixed with an independent suction head 6.46 at the bottom and a corresponding independent suction head cylinder 6.47 at the top. One end of the variable pitch piece 6.43a is opened with a corresponding fixing stud 6.43b. The corresponding fixed circular screw hole has a variable pitch waist-shaped hole at one end for the fixed stud 6.43b to move. The fixed stud 6.43b is symmetrically fixed on the slider 6.42. The fixed stud 6.43b is connected to each other through the variable pitch piece 6.43a to form two layers. The variable pitch pieces 6.43a connecting the fixed stud 6.43b have the same direction. The variable pitch chuck driving cylinder 6.41 drives the first slider 6.42 to move back and forth, thereby driving the other sliders to slide back and forth in the variable pitch waist-shaped hole through the variable pitch piece 6.43a, thereby realizing the change of the center distance between adjacent batteries of the battery pack adsorbed by the lower suction head 6.46.

[0077] like Fig.10 As shown, it is a principle diagram of pitch change, which changes the center distance of adjacent batteries in the battery pack from 18.5mm to 20.5mm. The circular distance between the center of the circular hole on the left side of the waist-shaped hole at the right end of the pitch change piece 6.43a and the circular distance between the circular hole on the left end of the pitch change piece 6.43a and the circular distance between the circular hole on the right side of the waist-shaped hole and the circular hole on the left end of the pitch change piece 6.43a is 18.5mm, and the circular distance between the circular hole on the right side of the waist-shaped hole and the circular hole on the left end of the pitch change piece 6.43a is 20.5mm. The second slider is fixed to the circular fixed hole at the left end of the pitch change piece 6.43a, and the first slider can slide in the pitch change waist-shaped hole at the right end of the pitch change piece 6.43a. The first slider is located at the left circular hole of the waist-shaped hole at the starting position. When the pitch change chuck driving cylinder 6.41 drives the first slider to move forward, the first slider pushes the second slider forward, and the second slider drives the pitch change piece 6.43a to move forward, so that the first slider slides from the left circular hole of the waist-shaped hole to the right circular hole, realizing the pitch change process.

[0078] like Fig.11The figure shows a three-dimensional structure diagram of the deformation transfer mechanism 8, including a deformation component 7.1 and a transfer component 7.2. The deformation component 7.1 includes a symmetrically arranged left clamp 7.11 and a right clamp 7.12. The left and right clamps are symmetrically provided with equidistant battery slots. Small magnets are provided in the middle of the battery slots. The initial state of the left and right clamps is horizontal. The variable pitch conveying mechanism 6 conveys the battery pack in the horizontal state on the synchronous belt mechanism 5 to the battery slot of the left clamp 7.11, and the battery pack is adsorbed by the small magnet. The left and right clamps are driven by the cylinder to clamp synchronously in the vertical direction, thereby converting the battery pack in the horizontal state of the left clamp 7.11 into a vertical state, and then the deformation component 7.1 in the vertical state is transferred to the next station through the transfer component 7.2. A buffer is provided on the transfer component 7.2.

[0079] like Fig.12 As shown, it is a three-dimensional structural diagram of the battery module carrier 9 and the conveying mechanism 10. The conveying mechanism 10 includes a conveying streamline for conveying the battery module carrier 9. The battery module carrier 9 is fixed with a battery module lower shell. The manipulator handling mechanism 8 carries the battery pack in a vertical state to the battery module lower shell, carries multiple groups to form a battery module, and then another manipulator carries the battery module upper shell to assemble the battery module. The conveying streamline transfers the battery module carrier with the battery module lower shell equipped with empty batteries to the designated position. The lifting cylinder under the conveying streamline moves upward, driving the battery module carrier 9 to leave the conveying streamline of the conveying mechanism 10, and then the manipulator handling mechanism 8 starts to carry the battery pack to assemble the battery module. After another manipulator assembles the battery module upper shell, the lifting cylinder under the conveying streamline moves downward, placing the battery module carrier 9 horizontally on the conveying streamline, and transferring the battery module carrier 9 to the next process. At this point, the automatic assembly process of the battery into the shell is completed.

[0080] In order to further improve production efficiency, the deformation handling mechanism 7, the robot handling mechanism 8, the battery module carrier 9 and the conveying mechanism 10 are respectively arranged in two groups to form two groups of deformation handling, conveying, assembly and conveying lines.

[0081] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery shell automatic assembly system, characterized by: include: A battery transport mechanism (1) is provided with a plurality of transport stations (1.1) for transporting batteries from one station to the next; A plasma cleaning mechanism (2) for cleaning dirt at both ends of the battery in the handling station (1.1); A barcode scanning mechanism (3) for recording the barcode on each battery transferred from the transport station (1.1) and uploading it to a database; A material taking mechanism (4) is used to take the battery on the last station of the battery transport mechanism (1) to the next process; A synchronous belt mechanism (5) is used to convey the batteries transported by the material taking mechanism (4) and form a battery pack to wait for subsequent transport; A variable distance transport mechanism (6) is used to transport the battery pack on the synchronous belt mechanism (5) to the next process, the variable distance mechanism (6) being provided with a variable distance clamp (6.4), the variable distance clamp (6.4) changing the center distance between adjacent batteries of the transported battery pack; A plurality of deformation transport mechanisms (7) for transforming the battery pack after the distance is changed by the distance-changing transport mechanism (6) from a horizontal state to a vertical state, and moving the battery pack to a designated position to wait for transport; A plurality of robot transport mechanisms (8) for transporting the battery pack in a vertical state on the deformation transport mechanism (7) to the next process; A plurality of battery module carriers (9), wherein the battery module carriers (9) are equipped with battery module lower shells, and the robot handling mechanism (8) carries the plurality of battery packs in a vertical state to the battery module lower shells to form a battery module, and waits for the subsequent robot to carry the battery module upper shell for assembly; A plurality of conveying mechanisms (10) for conveying the assembled battery module carrier (9) to the next process; A rack electric control box (11), the upper surface of which is integrated with the above-mentioned mechanism, and the interior of which is integrated with an electric control system; The variable-pitch transport mechanism (6) comprises a transport front and rear servo module (6.1), a transport left and right servo module (6.2), a transport upper and lower cylinder (6.3) and a variable-pitch chuck (6.4); the variable-pitch chuck (6.4) absorbs the battery pack on the synchronous belt mechanism (5) and changes the center distance between adjacent batteries of the transported battery pack to achieve a variable-pitch process; the transport upper and lower cylinder (6.3) drives the variable-pitch chuck (6.4) to move up and down; the transport front and rear servo module (6.1) cooperates with the transport left and right servo module (6.2) to drive the transport upper and lower cylinder (6.3) to drive the variable-pitch chuck (6.4) to move forward, backward, left and right to achieve a transport process; The deformation transport mechanism (7) comprises a deformation component (7.1) and a transfer component (7.2), the deformation component (7.1) comprising a symmetrically arranged left clamp (7.11) and a right clamp (7.12), the left and right clamps being symmetrically provided with equidistant battery slots, the middle of each of the battery slots being provided with a small magnet, the left and right clamps being initially in a horizontal state, the variable pitch transport mechanism (6) transporting the battery pack in a horizontal state on the synchronous belt mechanism (5) to the battery slot of the left clamp (7.11), the battery pack being attracted by the small magnet, the left and right clamps being synchronously clamped in a vertical direction by a cylinder drive, thereby converting the battery pack in a horizontal state of the left clamp (7.11) into a vertical state, and then transferring the deformation component (7.1) in a vertical state to the next station via the transfer component (7.2), the transfer component (7.2) being provided with a buffer; The variable pitch chuck (6.4) comprises a variable pitch chuck driving cylinder (6.41), a plurality of sliders (6.42), a variable pitch piece (6.43a), a fixing stud (6.43b), a slide rail (6.44) and a chuck frame (6.45); a slider hole is opened in the middle of the chuck frame (6.45); the slide rail (6.44) is fixed on both sides of the slider hole; the slider (6.42) passes through the slider hole and is slidably connected to the slide rail (6.44); the slider (6.42) is fixed with an independent suction head (6.46) at the bottom and a corresponding independent suction head cylinder (6.47) at the top; one end of the variable pitch piece (6.43a) is opened with a connection with the fixing stud (6.43b) ) corresponding to a fixed circular screw hole, one end of which is provided with a variable pitch waist-shaped hole for the fixed stud (6.43b) to move, the fixed stud (6.43b) is symmetrically fixed on the slider (6.42), the fixed studs (6.43b) are connected to each other through the variable pitch piece (6.43a) to form two layers, the variable pitch pieces (6.43a) connecting the fixed studs (6.43b) are in the same direction, the variable pitch chuck driving cylinder (6.41) drives the first slider (6.42) to move forward and backward, thereby driving the other sliders to slide forward and backward in the variable pitch waist-shaped hole through the variable pitch piece (6.43a), thereby realizing the change of the center distance of adjacent batteries of the battery pack adsorbed by the lower suction head (6.46).

2. The automatic battery shell assembly system according to claim 1, characterized in that: The battery transport mechanism (1) comprises the plurality of transport stations (1.1), transport front and rear cylinders (1.2), a plurality of groups of transport upper and lower cylinders (1.3) and a transport pallet (1.4). The transport pallet (1.4) is arranged above each of the transport upper and lower cylinders (1.3). Battery slots for loading batteries are equidistantly provided on the upper surface of the transport pallet (1.4). The plurality of groups of transport upper and lower cylinders (1.3) drive the transport pallet (1.4) to move up and down synchronously, drive the transport pallet (1.4) upward to lift the battery on the transport station (1.1), retract downward to drive the transport pallet (1.4) to place the battery stably on the transport station (1.1), and the transport front and rear cylinders (1.2) drive the transport pallet (1.4) to move upward and downward synchronously. The multiple groups of upper and lower transport cylinders (1.3) move forward and backward synchronously. When the transport pallet (1.4) holds up the battery at a workstation, the front and rear transport cylinders (1.2) synchronously drive the multiple groups of upper and lower transport cylinders (1.3) to drive the transport pallet (1.4) to retract backward, thereby transporting the battery held up by the transport pallet (1.4) from the previous workstation to the next workstation. When the transport pallet (1.4) moves downward to stably place the loaded battery at the next workstation and resets, the front and rear transport cylinders (1.2) synchronously drive the multiple groups of upper and lower transport cylinders (1.3) to drive the transport pallet (1.4) to reset forward, preparing for the next battery transport, thereby realizing the transport of the battery from the previous workstation to the next workstation.

3. The automatic battery shell assembly system according to claim 2, characterized in that: The transport station (1.1) comprises a loading station (1.11), a buffer station (1.12), a cleaning station (1.13), a code scanning station (1.14), and a material retrieving station (1.15). Carrier plates (1.6a) are symmetrically fixed inside the two sides of the loading station (1.11), the buffer station (1.12), the cleaning station (1.13), and the material retrieving station (1.15). The carrier plates (1.6a) are provided with equidistant battery slots for loading batteries. A plurality of rollers (1.6b) are symmetrically installed on the two sides of the code scanning station (1.14). A single battery is loaded between two rollers (1.6b). The battery is loaded and unloaded to drive the battery to roll; the loading station (1.11) and the buffer station (1.12) are located before the cleaning station (1.13); the cleaning station (1.13) is located below the plasma cleaning mechanism (2); the code scanning station (1.14) is located below the code scanning mechanism (3); and the material taking station (1.15) is located below the material taking mechanism (4); cleaning holes with equal spacing are provided on both sides of the cleaning station (1.13) relative to the top of the equal spacing battery slots, for the plasma cleaning mechanism (2) to clean both ends of the battery.

4. The automatic battery shell assembly system according to claim 3, characterized in that: Buffers (1.5) are provided at both the front and rear ends of the battery transport mechanism (1).

5. The automatic battery shell assembly system according to claim 4, characterized in that: The plasma cleaning mechanism (2) comprises a front and rear cleaning servo module (2.1) and left and right plasma cleaning machines (2.2); the front and rear cleaning servo module (2.1) drives the left and right plasma cleaning machines (2.2) to move forward and backward synchronously, thereby cleaning the dirt at both ends of the battery on the cleaning station (1.13).

6. A battery shell automatic assembly system according to any one of claims 1 to 5, characterized in that: The synchronous belt mechanism (5) comprises a synchronous belt streamline (5.1), a distance sensor (5.2) is arranged at the front end of the synchronous belt streamline (5.1), and an anti-stacking component (5.3) and a counting sensor (5.4) are arranged at the rear end. The anti-stacking component (5.3) is driven by a cylinder and is provided with a baffle at the front end. The baffle covers the upper part of the rear end of the synchronous belt streamline (5.1) and is used to prevent the batteries conveyed by the synchronous belt streamline (5.1) from causing stacking. The counting sensor (5.4) is arranged on one side of the synchronous belt streamline at the lower end of the anti-stacking component (5.3) and is used to count the conveyed batteries and record the positions of the batteries. When the number and position of the batteries recorded by the counting sensor (5.4) meet the requirements, the batteries below the anti-stacking component (5.3) form a battery pack, and the system guides the baffle of the anti-stacking component (5.3) to withdraw from the synchronous belt streamline (5.1) to make room for the variable distance conveying mechanism (6) to convey the battery pack.

7. The automatic battery shell assembly system according to claim 6, characterized in that: The deformation handling mechanism (7), the robot handling mechanism (8), the battery module carrier (9) and the conveying mechanism (10) are respectively arranged in two groups, forming two groups of deformation handling, conveying, assembly and conveying lines.

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