Battery module extrusion system

Abstract

The invention discloses a battery module extruding system which comprises a line body assembly, a battery module and tray assembly, a left station extruding machine, a right station extruding machine and a jacking and lateral moving assembly. The battery module and tray assembly comprises a battery module and a tray which need to be extruded; a battery module and a tray assembly are placed on the line body assembly; the jacking and moving assembly is arranged under the line body assembly. A left station extruder and a right station extruder are arranged on the left side and the right side of the line body assembly respectively. The line body assembly is used for conveying the battery module and the tray assembly to the position over the jacking and lateral moving assembly; the left station extruding machine and the right station extruding machine are used for extruding the battery modules and the battery modules in the tray assembly; and the jacking and lateral moving assembly is used for transferring the battery module and the tray assembly between the extruding machine and the line body assembly. According to the extrusion device, the battery module can be efficiently and reliably extruded, the working efficiency is improved, and the overall manufacturing cost of the battery module is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of batteries, and in particular to a battery module extrusion system. Background Art

[0002] Currently, in the field of automated processing and assembly of battery modules (ie, PACK), in order to insert the battery module into a steel belt (ie, strapping belt), the battery module needs to be squeezed into a pre-required fixed size.

[0003] The existing battery module extrusion method is generally: the battery module is grabbed from the stacking station to the extrusion station by a robot, and then extruded using an existing extruder. After the extrusion is completed, the battery module is grabbed by a robot and put on the line body (i.e., the assembly line body, which is used to transfer the battery module to a designated station or area).

[0004] Therefore, the existing battery module extrusion method requires time for calibration, has low work efficiency, and significantly increases the overall manufacturing cost of the battery module. In addition, due to the complex overall structure, the maintenance cost of the equipment is high.

[0005] Therefore, there is an urgent need to develop a technology that can solve the above technical problems. Summary of the invention

[0006] The purpose of the present invention is to provide a battery module extrusion system in view of the technical defects existing in the prior art.

[0007] To this end, the present invention provides a battery module extrusion system, which includes a line body assembly, a battery module and tray assembly, a left-station extruder, a right-station extruder, and a jacking and side shifting assembly;

[0008] Battery module and tray assembly, including battery modules and trays that need to be extruded;

[0009] The battery module is arranged on the top of the tray;

[0010] The battery module and tray assembly are placed on the line assembly;

[0011] Directly below the line body assembly, a jacking and side shifting assembly is provided;

[0012] The left and right sides of the wire assembly are respectively provided with a left station extruder and a right station extruder;

[0013] The lifting and side-shifting assembly is arranged correspondingly to the left-station extruder and the right-station extruder;

[0014] The line assembly is used to transport the battery module and the tray assembly to the top of the lifting and side shifting assembly;

[0015] The left-station extruder and the right-station extruder are used to extrude the battery modules and the battery modules in the tray assembly;

[0016] The lifting and side-shifting assembly is used to transfer the battery module and tray assembly above it from the line body assembly to the left-station extruder or the right-station extruder, and to transfer the battery module that has been extruded by the left-station extruder or the right-station extruder from the extruder to the line body assembly.

[0017] It can be seen from the technical solution provided by the present invention that, compared with the prior art, the present invention provides a battery module extrusion system, which is scientifically designed and can efficiently and reliably extrude the battery module, thereby improving work efficiency, which is conducive to reducing the overall manufacturing cost of the battery module, and further improving the market application prospects of the battery manufacturer's products, and has great practical significance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the three-dimensional structure of a battery module extrusion system provided by the present invention;

[0019] Figure 2 A schematic structural diagram of a wire assembly in a battery module extrusion system provided by the present invention;

[0020] Figure 3 A schematic structural diagram of a tray front stopper provided by a line assembly in a battery module extrusion system provided by the present invention;

[0021] Figure 4a , Figure 4b They are schematic structural diagrams of a tray left stopper and a tray right stopper of a wire assembly in a battery module extrusion system provided by the present invention;

[0022] Figure 5 A schematic structural diagram of a battery module and a tray assembly in a battery module extrusion system provided by the present invention;

[0023] Figure 6 A schematic structural diagram of a battery module in a battery module extrusion system provided by the present invention;

[0024] Figure 7 A schematic diagram of an explosion of a battery module in a battery module extrusion system provided by the present invention;

[0025] Figure 8 A schematic structural diagram of a tray in a battery module extrusion system provided by the present invention;

[0026] Fig. 9 A schematic structural diagram of a right-station extruder in a battery module extrusion system provided by the present invention;

[0027] Fig.10 A schematic diagram of the structure of an extrusion assembly of a right-station extruder in a battery module extrusion system provided by the present invention;

[0028] Fig.11 A schematic structural diagram of a side shift positioning assembly of a right station extruder in a battery module extrusion system provided by the present invention;

[0029] Fig.12 A schematic structural diagram of a jacking and side-shifting assembly in a battery module extrusion system provided by the present invention. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] See also Figures 1 to 3 , Figure 4a to Figure 4b , Figures 5 to 12 As shown, the present invention provides a battery module extrusion system, which is a double-station battery module extrusion system, including a line body assembly 1, a battery module and tray assembly 2, a left-station extruder 3, a right-station extruder 4, and a jacking and side shifting assembly 5;

[0035] The battery module and tray assembly 2 includes a battery module 21 and a tray 22 to be squeezed;

[0036] The battery module 21 is disposed on the top of the tray 22;

[0037] The battery module and the tray assembly 2 are placed on the line assembly 1;

[0038] Directly below the line body assembly 1, a jacking and side shifting assembly 5 is provided;

[0039] The left and right sides of the wire assembly 1 are respectively provided with a left station extruder 3 and a right station extruder 4;

[0040] The lifting and side shifting assembly 5 is arranged correspondingly to the left station extruder 3 and the right station extruder 4;

[0041] The line assembly 1 is used to transport the battery module and the tray assembly 2 to the top of the lifting and side shifting assembly 5;

[0042] The left station extruder 3 and the right station extruder 4 are used to extrude the battery module and the battery module 21 in the tray assembly 2;

[0043] The lifting and side-shifting assembly 5 is used to transfer the battery module and the tray assembly 2 above it from the line assembly 1 to the left-station extruder 3 or the right-station extruder 4, and to transfer the battery module 21 after being extruded by the left-station extruder 3 or the right-station extruder 4 from the extruder to the line assembly 1. That is, the lifting and side-shifting assembly 5 is used to transfer the battery module and the tray assembly between the extruder and the line assembly.

[0044] It should be noted that, for the present invention, the battery module and tray assembly 2 are arranged on the line assembly 1; the line assembly 1 is used to transport the battery module and the tray assembly 2 to the top of the jacking and side shifting assembly 5, and can be transported to different workstations; the different workstations can be: battery module extrusion station, battery module binding station and bar welding station, etc. The present invention only specifically describes the structure of the battery module extrusion station.

[0045] The left station extruder 3 and the right station extruder 4 are used to extrude the battery module and the battery module 21 in the tray assembly 2;

[0046] The lifting and side-shifting assembly 5 is used to transfer the battery module and tray assembly 2 above it from the line body assembly 1 to the left-station extruder 3 or the right-station extruder 4, and to transfer the battery module 21 that has been extruded by the left-station extruder 3 or the right-station extruder 4 from the left-station extruder 3 or the right-station extruder 4 to the line body assembly 1.

[0047] In the present invention, the left-station extruder 3 and the right-station extruder 4 are symmetrically arranged on the left and right sides of the linear assembly 1 .

[0048] It should be noted that the lifting and side shifting assembly 5 is arranged on the linear assembly 1 , and is located in the middle of the left station extruder 3 and the right station extruder 4 .

[0049] In the present invention, see Figures 2 to 5 As shown, the line body assembly 1 includes: a line body 11, a pallet rear stopper 12, a pallet left stopper 13 and a pallet right stopper 14;

[0050] Wherein, the rear stopper 12 of the pallet comprises a cylinder mounting plate 121 and a stopper cylinder 122;

[0051] The cylinder mounting plate 121 is arranged on the linear body 11;

[0052] The blocking cylinder 122 is arranged on the top of the cylinder mounting plate 121;

[0053] It should be noted that when the line 11 transports the battery module and the tray assembly 2 backward to a position between the left-station extruder 3 and the right-station extruder 4, the blocking cylinder 122 blocks the battery module and the tray assembly 2 to prevent the battery module and the tray assembly 2 from continuing to move backward.

[0054] It should be noted that the line body 11 is a well-known assembly line body with mature prior art, and is an assembly line body on an existing assembly line, and is used to convey (longitudinally convey forward and backward) the battery modules and tray assemblies 2 thereon. For example, the line body 11 can be a PTS5 tray conveyor, and the manufacturer is Dalian Medela Industrial Automation Co., Ltd.

[0055] It should be noted that the blocking cylinder 122 is a well-known cylinder with mature prior art technology, for example, a blocking cylinder of the brand AirTac and model TTH63X30SK can be used, and its function is to block or release the battery module and tray assembly 2.

[0056] The tray left stopper 13 is arranged on the left side of the line body 11;

[0057] The tray right stopper 14 is arranged on the right side of the line body 11;

[0058] The left tray stopper 13 and the right tray stopper 14 are located on the left and right sides of the stopper cylinder 122 .

[0059] In specific implementation, the tray left block 13 includes two first pen-shaped cylinders 131 and two first blocking blocks 132;

[0060] The power output end (i.e., piston rod) of each first pen-shaped cylinder 131 is connected to a first blocking block 132;

[0061] The first pen-shaped cylinder 131 is used to drive the first blocking block 132 to move forward and backward.

[0062] Furthermore, the two first pen-shaped cylinders 131 are symmetrically distributed front to back, that is, they are arranged in a mirror-symmetrical manner.

[0063] It should be noted that when the piston rods of the two first pen-shaped cylinders 131 are retracted, the distance between the two first blocking blocks 132 is greater than the total longitudinal length of the tray 22 , and the tray 22 can move leftward from the wire body 11 to the left station extruder 3 .

[0064] When the piston rods of the two first pen-shaped cylinders 131 extend out, the two first blocking blocks 132 are driven to move. At this time, the distance between the two first blocking blocks 132 is smaller than the total longitudinal length of the tray 22. The battery module and tray assembly 2 that has completed extrusion in the right-station extruder 4 moves from the right-station extruder 4 to the left onto the wire body 11, and stops moving further to the left after hitting the two first blocking blocks 132.

[0065] In specific implementation, the tray right block 14 includes two second pen-shaped cylinders 141 and two second blocking blocks 142;

[0066] The power output end (i.e., piston rod) of each second pen-shaped cylinder 141 is connected to a second blocking block 142;

[0067] The second pen-shaped cylinder 141 is used to drive the second blocking block 142 to move forward and backward.

[0068] Furthermore, the two second pen-shaped cylinders 141 are symmetrically distributed front to back, that is, they are arranged in a mirror-symmetrical manner.

[0069] It should be noted that when the piston rods of the two second pen-shaped cylinders 141 are retracted, the distance between the two second blocking blocks 142 is greater than the total longitudinal length of the tray 22, and the tray 22 can move rightward from the wire body 11 to the right station extruder 4.

[0070] When the piston rods of the two second pen-shaped cylinders 141 extend out, the two second blocking blocks 142 are driven to move. At this time, the distance between the two second blocking blocks 142 is smaller than the total longitudinal length of the tray 22. The battery module and tray assembly 2 that has completed extrusion in the left-station extruder 3 moves from the left-station extruder 3 to the right onto the wire body 11, and after hitting the two second blocking blocks 142, it stops moving to the right.

[0071] It should also be noted that the piston rods in the first pen-shaped cylinder 131 and the second pen-shaped cylinder 141 are in a retracted state in the initial state.

[0072] In the present invention, see Figures 5 to 8 As shown, the battery module and tray assembly 2 includes: a battery module 21 and a tray 22;

[0073] A battery module 21 is arranged on the top of the horizontally distributed tray 22;

[0074] In specific implementation, the battery module 21 includes a battery module body, foam 212, a rear end plate 213 and a front end plate 214;

[0075] The battery module body includes a plurality of single cells 211 and foam 212;

[0076] A vertically distributed foam 212 is provided between any two adjacent battery cells;

[0077] It should be noted that the foam 212 is made of PU (polyurethane) material, which will produce a certain deformation under the action of the extrusion force.

[0078] The front and rear sides of the battery module body are respectively provided with a front plate 214 and a rear plate 213;

[0079] It should be noted that the upper steel belt 215 and the lower steel belt 216 are rectangular in shape with a hollow middle, and are used to circle the above-mentioned multiple single battery cells 211, foam 212, front end plate 214 and rear end plate 213 into a whole.

[0080] Furthermore, the plurality of single battery cells 211 are connected in series, in parallel, or in series-parallel (ie, a combination of series and parallel).

[0081] It should be noted that, for a battery module, specific methods of connecting a plurality of single cells in series, in parallel, and in series and parallel are conventional known technologies and will not be described in detail herein.

[0082] Furthermore, the battery module 21 further includes an upper steel belt 215 and a lower steel belt 216;

[0083] The upper steel strip 215 and the lower steel strip 216 are used to be sleeved on the upper and lower ends of the four sides of the overall structure composed of the battery module body and the front end plate 214 and the rear end plate 213 after the battery module body and the front end plate 214 and the rear end plate 213 are extruded by the left station extruder 3 or the right station extruder 4.

[0084] It should be noted that after the extrusion operation is performed, the upper and lower ends of the four sides of the overall structure consisting of the battery module body and the front plate 214 and the rear plate 213 are respectively surrounded by a rectangular upper steel belt 215 and a lower steel belt 216 (i.e., a packing belt);

[0085] It should be noted that before the battery module 21 is squeezed, the length of the battery module 21 is larger than the hollow length between the upper steel belt 215 and the lower steel belt 216. The battery module 21 needs to be squeezed by an extruder to compress the foam 212. After squeezing to a certain size, the upper steel belt 215 and the lower steel belt 216 can be inserted into the outer side of the battery module 21 in the circumferential direction, specifically, into the outer side of the front plate 214 and the rear plate 213. When the extruder releases the squeezing, the upper steel belt 215 and the lower steel belt 216 now circle the multiple single cells 211, the foam 212, the front plate 214 and the rear plate 213 into a whole.

[0086] For specific implementation, see Figure 8 As shown, the tray 22 includes: a tray body 221, a first positioning bracket 222, a second positioning bracket 223 and two positioning sleeves 224;

[0087] Two positioning sleeves 224 are respectively arranged at the left rear and right front of the top of the tray body 221;

[0088] The first positioning bracket 222 is disposed on the top right side of the tray body 221;

[0089] The second positioning bracket 223 is disposed on the top left side of the tray body 221;

[0090] The battery module 21 is disposed between the first positioning bracket 222 and the second positioning bracket 223;

[0091] The left and right sides of the battery module 21 are in contact with the first positioning bracket 222 and the second positioning bracket 223 respectively.

[0092] The first positioning bracket 222 and the second positioning bracket 223 are used to limit the battery module 21 in the lateral direction;

[0093] Further, the front and rear ends of the first positioning bracket 222 and the second positioning bracket 223 are aligned;

[0094] It should be noted that the battery module 21 is disposed between the first positioning bracket 222 and the second positioning bracket 223 , and the battery module 21 cannot move left and right on the tray 22 , that is, the battery module 21 is positioned in the tray 22 in the horizontal left and right directions.

[0095] In the present invention, see Fig. 9 As shown, the shapes and structures of the left-station extruder 3 and the right-station extruder 4 are completely the same, and the present invention only specifically describes the structure of the right-station extruder 4.

[0096] In the present invention, the right station extruder 4 includes a frame 41, an extrusion assembly 42 and a side shift positioning assembly 43;

[0097] An extrusion assembly 42 is provided at the front and rear ends of the top of the frame 41;

[0098] A side shift positioning assembly 43 is provided at the top middle position of the frame 41;

[0099] Two extrusion assemblies 42 are used to perform an extrusion operation (extrusion toward each other) on the front and rear sides of the battery module and the battery module 21 in the tray assembly 2 placed therebetween;

[0100] A side shift positioning assembly 43, on top of which the battery module and the tray assembly 2 are placed, is used to drive the battery module and the tray assembly 2 to move leftward or rightward, thereby causing the battery module and the tray assembly 2 to move in the direction of the line body 11;

[0101] Furthermore, the two extrusion components 42 are symmetrically distributed front and back;

[0102] For specific implementation, see Fig.10 As shown, the extrusion assembly 42 includes an electric cylinder 421 and an extrusion plate 424;

[0103] The electric cylinder 421 is arranged on the electric cylinder mounting seat 420;

[0104] The transmission shaft 4211 of the electric cylinder 421 is connected to the extrusion plate 424;

[0105] It should be noted that the transmission shaft 4211 in the electric cylinder 421 can be extended and retracted forward and backward to drive the extrusion plate 424 to move forward and backward.

[0106] It should be noted that the electric cylinder 421 is a mature and well-known electrical module in the prior art. For example, the electric cylinder of model YC94-T10-250-BR-FA-A-N10-P1500 produced by Shenzhen Yuchuang Electromechanical Equipment Co., Ltd. can be used, and its function is to extrude the battery module 21.

[0107] It should be noted that when the transmission shaft 4211 is extended, it can be understood as squeezing the battery module 21 , and when the transmission shaft 4211 is retracted, it can be understood as releasing the squeezing of the battery module 21 .

[0108] Furthermore, the extrusion assembly 42 further includes a grating ruler 423;

[0109] The scale grating of the grating ruler 423 itself is fixed at the bottom of the transmission shaft 4211 of the electric cylinder 421;

[0110] The grating scale 423 itself has a grating reading head, which is fixed on the bottom plate of the electric cylinder mounting base 420.

[0111] It should be noted that the inherent characteristic of the grating ruler 423 is the detection of displacement. In the present invention, the displacement value of the extrusion plate 424 can be displayed in real time through the action of the grating ruler 423.

[0112] It should be noted that the grating ruler 423 is a mature and well-known electrical component in the prior art, for example, a grating ruler model GCS-898-1 produced by Shenzhen Hengxingxing Precision Instrument Co., Ltd. can be used; the function of the grating ruler 423 is to detect the real-time displacement value of the extrusion plate 424.

[0113] Further, the right station extruder 4 includes a control system, which is connected to the control end of the electric cylinder 421 and the displacement detection output end of the grating ruler 423;

[0114] The control system is used to send a control signal to the electric cylinder 421 to control the moving shaft 4211 of the electric cylinder 421 to stop extending when the real-time displacement value of the extrusion plate 424 detected by the grating ruler 423 is equal to (i.e. reaches) a preset extrusion displacement value.

[0115] It should be noted that, for the present invention, the right-station extruder 4 includes a control system, which is connected to the control end of the electric cylinder 421 and the displacement detection output end of the grating ruler 423. The extrusion displacement value can be input into the control system. When the displacement value of the extrusion plate 424 reaches (i.e., equal to) the preset extrusion displacement value, the transmission shaft 4211 stops extending, thereby ensuring that the length of each battery module 21 after extrusion is the same.

[0116] Further, the extrusion assembly 42 also includes a pressure sensor 422;

[0117] The transmission shaft 4211 is connected to the extrusion plate 424 via the pressure sensor 422, that is, the pressure sensor 422 is disposed between the transmission shaft 4211 and the extrusion plate 424;

[0118] It should be noted that the inherent characteristic of the pressure sensor 422 is the detection of pressure. In the present invention, the pressure sensor 422 can be used to display the squeezing force borne by the squeezing plate 424 in real time.

[0119] It should be noted that the pressure sensor 422 is a well-known electrical component with mature technology, for example, a pressure sensor of model DYLF-102 (0-5T) produced by Bengbu Dayang Sensing System Engineering Co., Ltd. The function of the pressure sensor 42 is to detect the extrusion force borne by the extrusion plate 424 in real time. The installation method of the pressure sensor 422 is an existing well-known method and will not be repeated here.

[0120] Furthermore, the control system included in the right station extruder 4 is also connected to the pressure detection output end of the pressure sensor 422;

[0121] The control system is used to send a control signal to the electric cylinder 421 to control the movable shaft 4211 of the electric cylinder 421 to stop retracting when the real-time pressure value of the extrusion plate 424 detected by the pressure sensor 422 is equal to (i.e. reaches) a preset maximum pressure value.

[0122] It should be noted that the extrusion pressure that the battery module 21 can withstand is limited. When the extrusion pressure exceeds the limited value, the battery module 21 will be damaged. For this reason, the right-station extruder 4 includes a control system, which is connected to the control end of the electric cylinder 421. The maximum pressure value can be input into the control system. When the pressure on the pressure sensor 422 reaches (i.e. is equal to) the preset maximum pressure value, the extrusion is automatically stopped, thereby protecting the battery module 21 from being damaged.

[0123] Furthermore, the control system may be a programmable controller PLC, a central processing unit CPU, a digital signal processor DSP or a single-chip microcomputer MCU.

[0124] For specific implementation, see Fig.11 As shown, the lateral shift positioning assembly 43 includes a first mounting plate 431 , a first lifting cylinder 432 , a lifting plate 433 , a pallet positioning pin 434 , a first roller mounting bracket 435 , a first double-row sprocket roller 436 , a driving motor 437 , a first chain 438 and a first rubber sleeve 439 .

[0125] A first mounting plate 431 is disposed at the top middle position of the frame 41;

[0126] A first lifting cylinder 432 is respectively provided at the front and rear ends of the bottom of the first mounting plate 431;

[0127] The power output end (i.e., piston rod) at the top of each first lifting cylinder 432 vertically passes through a through hole reserved on the first mounting plate 431 and is connected to a laterally distributed lifting plate 433;

[0128] A plurality of first rubber sleeves 439 are provided between the two lifting plates 433;

[0129] The first rubber sleeve 439 is used to contact the bottom of the tray 22 in the battery module and tray assembly 2 when the battery module and tray assembly 2 is transferred to the top of the right station extruder 4 (or the left station extruder 3) by the lifting and side shifting assembly 5;

[0130] Two first lifting cylinders 432 are used to drive the lifting plate 433 to move vertically upward when the battery module and the tray assembly 2 are transferred to the top of the right-station extruder 4 (or the left-station extruder 3) by the lifting and side-shifting assembly 5, so as to lift the tray 22 upward (specifically, it can be lifted to a preset height), so that the bottom of the tray 22 is separated from the first rubber sleeve 439 in the side-shifting positioning assembly 43, so that the battery module and the tray assembly 2 are positioned in the height direction in the right-station extruder 4;

[0131] Furthermore, two first lifting cylinders 432 are symmetrically arranged front and back below the first mounting plate 431 .

[0132] Further, a tray positioning pin 434 is provided at the left end of the first lifting plate 433 at the rear side and the right end of the first lifting plate 433 at the front side, respectively;

[0133] The tray positioning pin 434 is used to be inserted into the positioning sleeve 224 on the tray 22;

[0134] It should be noted that the first lifting cylinder 432 is used to lift the tray 22 to a certain height so that the height direction of the battery module 21 in the right station extruder 4 is consistent (after lifting, the tray 22 is separated from the top of the first rubber sleeve 439), that is, the battery module 21 is positioned in the height direction in the right station extruder 4.

[0135] It should also be noted that, in the process of the first lifting cylinder 432 lifting the tray 22, the tray positioning pin 434 will be inserted into the positioning sleeve 224 (i.e., forming a pin shaft fit), so that the battery module 21 is positioned in the left and right directions in the right station extruder 4. The front-to-back direction (length direction) of the battery module 21 needs to be extruded, and positioning is not required before extrusion. Therefore, after the first lifting cylinder 432 lifts the battery module and tray assembly 2, the battery module and tray assembly 2 are positioned in the height direction in the right station extruder 4.

[0136] Furthermore, two first roller mounting brackets 435 distributed laterally are provided between the two lifting plates 433;

[0137] Two first roller mounting brackets 435 are symmetrically distributed on the top of the first mounting plate 431;

[0138] On one side opposite to the two first roller mounting brackets 435, a plurality (e.g., five) of first double-row sprocket rollers 436 distributed longitudinally are pivotally connected (i.e., rotatably connected);

[0139] A first rubber sleeve 439 is provided at the front and rear ends of each first double-row sprocket roller 436;

[0140] It should be noted that the number of the first double-row sprocket rollers 436 is five, which are arranged on the first roller mounting bracket 435 and arranged in a row in the left-right direction.

[0141] Furthermore, a driving motor 437 is provided at the bottom of the first mounting plate 431;

[0142] A drive motor sprocket is provided on the power output end of the drive motor 437;

[0143] The front end of each first double-row sprocket roller 436 is provided with two first sprockets spaced apart from each other in the front and rear directions;

[0144] The first sprockets at the front ends of the plurality of first double-row sprocket rollers 436 are aligned transversely;

[0145] Any first double-row sprocket roller 436 and its adjacent first double-row sprocket roller 436 are linked and connected by a surrounding second chain 4382, and the second chain 4382 is wound around two first sprockets located on the same side (specifically, the same horizontal vertical plane);

[0146] The driving motor sprocket on the driving motor 437 is linked to a first sprocket at the front end of the first double-row sprocket roller 436 on the leftmost side through a first chain 4381 distributed around;

[0147] It should be noted that, for the present invention, when the driving motor 437 rotates, the first chain 4381 and the second chain 4382 will drive the plurality of first double-row sprocket rollers 436 to rotate.

[0148] It should be noted that a second chain 4382 is provided between the two first sprockets on the same side of every two first double-row sprocket rollers 436 .

[0149] It should be noted that when the drive motor 437 rotates forward, the first double-row sprocket roller 436 will be driven to rotate forward under the action of the first chain 4381 and the second chain 4382. At this time, the battery module and tray assembly 2 placed on the top of the first double-row sprocket roller 436 move to the right; when the drive motor 437 is reversed, the first double-row sprocket roller 436 will be driven to reverse under the action of the first chain 4381 and the second chain 4382. At this time, the battery module and tray assembly 2 placed on the top of the first double-row sprocket roller 436 move to the left.

[0150] It should also be noted that the rotation of the first double-row sprocket roller 436 drives the battery module and the tray assembly 2 to move, which is accomplished by the friction between the two. The first rubber sleeve 439 is made of rubber, which can increase the friction between the tray 22 and reduce the wear on the tray 22 when the first double-row sprocket roller 436 rotates.

[0151] In the present invention, see Fig.12 As shown, the lifting and side shifting assembly 5 includes a second mounting plate 51, a second lifting cylinder 52, a lifting plate 53, a second roller mounting bracket 54, a power roller 55, a second double-row sprocket roller 56, a third chain 57 and a second rubber sleeve 58;

[0152] The second mounting plate 51 is disposed on the line body 11 of the line body assembly 1 and is located in front of the rear stop 12 of the tray;

[0153] The second lifting cylinder 52 is disposed at the bottom of the second mounting plate 51;

[0154] The power output end (i.e., piston rod) at the top of the second lifting cylinder 52 vertically passes through a through hole reserved on the second mounting plate 51 and is connected to a horizontally longitudinally distributed lifting plate 53;

[0155] It should be noted that before the second lifting cylinder 52 is lifted, the battery module and the tray assembly 2 are arranged on the line body 11 (at this time, they are movable in the front and rear directions, but not movable in the left and right directions). After the second lifting cylinder 52 is lifted (i.e., the lifting plate 53 is lifted upward), the battery module and the tray assembly 2 will leave the line body 11 in the height direction (at this time, they are movable in the left and right directions, but not movable in the front and rear directions).

[0156] A pair of second roller mounting brackets 54 are respectively provided at the two ends of the top of the lifting plate 53;

[0157] Each pair of second roller mounting brackets 54 includes two second roller mounting brackets 54 spaced apart from each other, and a plurality (e.g., three) longitudinally distributed second double-row sprocket rollers 56 and a power roller 55 are pivotally connected (i.e., rotatably connected) to opposite sides of the two second roller mounting brackets 54;

[0158] A second rubber sleeve 58 is provided at the front and rear ends of each second double-row sprocket roller 56 and the power roller 55;

[0159] The second rubber sleeve 58 is used to contact the bottom of the tray 22 in the battery module and tray assembly 2 when the battery module and tray assembly 2 is transferred to the top of the lifting and side shifting assembly 5 by the line body 11;

[0160] The second lifting cylinder 52 is used to drive the lifting plate 53 to move vertically upward when the battery module and the tray assembly 2 move with the line body 11 to the top of the lifting and side shifting assembly 5, so as to lift the tray 22 upward (specifically, it can be lifted to a preset height), so that the bottom of the tray 22 is separated from the line body 11;

[0161] It should be noted that there are two power rollers 55 , the front one is arranged between a front pair of two second roller mounting brackets 54 , and the rear one is arranged between a rear pair of two second roller mounting brackets 54 .

[0162] It should be noted that the power roller 55 is a mature and well-known module in the prior art, for example, a Yiheta standard part, specifically a power roller produced by Dongguan Yiheta Automation Co., Ltd., model: QCG42-15-W300-D50-2-A, which can rotate forward and reverse, and its function is to drive the second double-row sprocket roller 56 to rotate.

[0163] It should be noted that the number of the second double-row sprocket rollers 56 is six, which are divided into two rows and three columns.

[0164] In specific implementation, two power roller sprockets are provided at the opposite ends of the two power rollers 55;

[0165] Two power rollers 55 are located on the top right side of the lifting plate 53 and aligned front to back;

[0166] The number of the second double-row sprocket rollers 56 in the two pairs of second roller mounting brackets 54 is equal and symmetrically distributed front to back;

[0167] The second double-row sprocket rollers 56 in the two pairs of second roller mounting brackets 54 are provided with two second sprockets at opposite ends;

[0168] The power roller sprocket of each power roller 55 is linked to a second sprocket on the same side (specifically, the same horizontal vertical plane) of the adjacent second double-row sprocket roller 56 through a third chain 57 that is distributed around it;

[0169] Any second double-row sprocket roller 56 is linked to its adjacent second double-row sprocket roller 56 via a surrounding third chain 57, and the third chain 57 is wound around two second sprockets located on the same side (specifically, the same transverse vertical plane).

[0170] It should be noted that when the power roller 55 rotates forward, the second double-row sprocket roller 56 will be driven to rotate forward under the action of the third chain 57, and the battery module and the tray assembly 2 will move to the right; when the power roller 55 reverses, the second double-row sprocket roller 56 will be driven to reverse under the action of the third chain 57, and the battery module and the tray assembly 2 will move to the left.

[0171] It should also be noted that the rotation of the power roller 55 drives the battery module and the tray assembly 2 to move, which is achieved by the friction between the two. The second rubber sleeve 58 is made of rubber, which can both increase the friction between the tray 22 and reduce the wear on the tray 22 when rotating.

[0172] It should be noted that, for the present invention, the present invention utilizes the line assembly 1 and related mechanisms to allow the battery module to circulate between different stations and complete related operations, such as the battery module extrusion station, the battery module binding station, the bar sheet (i.e., the connecting sheet) welding station, etc. The present invention has a reasonable structure and low cost, and adopts a double-station extrusion method, which has high work efficiency and is conducive to reducing the overall manufacturing cost of the battery module. In the present invention, only the battery module extrusion is specifically described.

[0173] In order to more clearly understand the technical solution of the present invention, the working principle of the present invention is explained below.

[0174] First, the battery module and the tray assembly 2 move backwards under the action of the wire body 11, and stop moving backwards after hitting the blocking cylinder 122;

[0175] Then, the battery module and the tray assembly 2 are lifted upward by the second lifting cylinder 52 in the lifting and side shifting assembly 5, so that the tray 22 contacts the second rubber sleeve 58 in the lifting and side shifting assembly 5, thereby making the battery module and the tray assembly 2 leave the line body 11 in the height direction;

[0176] Then, by lifting the power roller 55 in the side shift assembly 5, the second double-row sprocket roller 56 is driven to rotate forward together, the first double-row sprocket roller 436 in the right station extruder 4 rotates forward, and the battery module and tray assembly 2 moves to the right, that is, moves from the line body 11 to the right station extruder 4. After arriving at the right station extruder 4, the power roller 55 and the second double-row sprocket roller 436 stop rotating;

[0177] Then, the tray 22 is lifted to a preset height by the first lifting cylinder 432 in the right station extruder 4, so that the tray 22 is separated from the first rubber sleeve 439 in the right station extruder 4, thereby positioning the battery module and the tray assembly 2 in the right station extruder 4 in the height direction;

[0178] Then, the right station extruder 4 has two electric cylinders 421 in the front-to-back direction, and extends the two transmission shafts 4211 thereof toward each other, thereby extruding the battery module 21 therebetween;

[0179] Then, when the battery module 21 is squeezed to a pre-required size, the transmission shaft 4211 of the electric cylinder 421 stops moving;

[0180] Then, the staff manually puts the upper steel belt 215 and the lower steel belt 216 onto the battery module 21, and then the transmission shaft 4211 of the electric cylinder 421 is retracted, and the extrusion of the battery module 21 is completed;

[0181] Then, the first lifting cylinder 432 in the right station extruder 4 is retracted, and the battery module and the tray assembly 2 are returned to the first rubber sleeve 439 in the right station extruder 4;

[0182] Then, the first double-row sprocket roller 436 and the power roller 55 are reversed, so that the battery module and the tray assembly 2 move to the left, that is, move from the right station extruder 4 to the line body 11, and the piston rod of the first pen-shaped cylinder 131 in the left stopper 13 of the tray extends out, driving the two first stoppers 132 to move toward each other. When the battery module and the tray assembly 2 hit the first stopper 132, they stop moving further to the left, and the piston rod of the second lifting cylinder 52 retracts. At this time, the battery module and the tray assembly 2 return to the line body 11, and the battery module and the tray assembly 2 are moved downward by the second lifting cylinder 52 in the lifting and side-shifting assembly 5, so that the tray 22 no longer contacts the second rubber sleeve 58 in the lifting and side-shifting assembly 5, and the piston rod of the blocking cylinder 122 retracts. The battery module and the tray assembly 2 will continue to move backward to other stations under the action of the line body 11.

[0183] The above process is the whole process of the battery module and tray assembly 2 from the wire body 11 to the right station extruder 4, and then returning to the wire body 11 after extrusion. The process of the battery module and tray assembly 2 from the wire body 11 to the left station extruder 3, and then returning to the wire body 11 after extrusion is the same as the above process principle, which will not be repeated here.

[0184] In summary, compared with the prior art, the present invention has a reasonable structure, a scientific design, and is efficient and feasible to work, and adopts a double-station extrusion method, which is highly efficient.

[0185] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A battery module extrusion system, characterized in that: It comprises a line body assembly (1), a battery module and tray assembly (2), a left-station extruder (3), a right-station extruder (4) and a jacking and side-shifting assembly (5); A battery module and tray assembly (2), comprising a battery module (21) and a tray (22) to be subjected to an extrusion operation; The battery module (21) is arranged on the top of the tray (22); The battery module and the tray assembly (2) are placed on the line assembly (1); A lifting and side shifting assembly (5) is arranged directly below the line body assembly (1); A left-station extruder (3) and a right-station extruder (4) are respectively arranged on the left and right sides of the wire assembly (1); A lifting and side shifting assembly (5) is arranged correspondingly to the left-station extruder (3) and the right-station extruder (4); The line assembly (1) is used to transport the battery module and the tray assembly (2) to the top of the lifting and side shifting assembly (5); A left-station extruder (3) and a right-station extruder (4) are used to extrude the battery module and the battery module (21) in the tray assembly (2); The lifting and side-shifting assembly (5) is used to transfer the battery module and the tray assembly (2) above it from the line body assembly (1) to the left-station extruder (3) or the right-station extruder (4), and to transfer the battery module (21) that has been extruded by the left-station extruder (3) or the right-station extruder (4) from the extruder to the line body assembly (1).

2. The battery module extrusion system according to claim 1, characterized in that: The line body assembly (1) comprises: a line body (11), a tray rear stopper (12), a tray left stopper (13) and a tray right stopper (14); Wherein, the pallet rear stopper (12) comprises a cylinder mounting plate (121) and a stopper cylinder (122); The cylinder mounting plate (121) is arranged on the linear body (11); The blocking cylinder (122) is arranged on the top of the cylinder mounting plate (121); The tray left stopper (13) is arranged on the left side of the line body (11); The tray right stopper (14) is arranged on the right side of the line body (11); The tray left stopper (13) and the tray right stopper (14) are located on the left and right sides of the stopper cylinder (122).

3. The battery module extrusion system according to claim 2, characterized in that: The tray left stopper (13) comprises two first pen-shaped cylinders (131) and two first stoppers (132); The power output end of each first pen-shaped cylinder (131) is connected to a first blocking block (132); A first pen-shaped cylinder (131) is used to drive the first blocking block (132) to move forward and backward; The tray right stopper (14) comprises two second pen-shaped cylinders (141) and two second stoppers (142); The power output end of each second pen-shaped cylinder (141) is connected to a second blocking block (142); A second pen-shaped cylinder (141) is used to drive the second blocking block (142) to move forward and backward; The two first pen-shaped cylinders (131) are symmetrically distributed front and back; The two second pen-shaped cylinders (141) are symmetrically distributed front and back.

4. The battery module extrusion system according to claim 1, characterized in that: A battery module and tray assembly (2), comprising: a battery module (21) and a tray (22); A battery module (21) is arranged on the top of the horizontally distributed tray (22); The tray (22) comprises: a tray body (221), a first positioning bracket (222), a second positioning bracket (223) and two positioning sleeves (224); Two positioning sleeves (224) are respectively arranged at the left rear and right front of the top of the tray body (221); The first positioning bracket (222) is arranged on the top right side of the tray body (221); The second positioning bracket (223) is arranged on the top left side of the tray body (221); A battery module (21) is arranged between the first positioning bracket (222) and the second positioning bracket (223); The left and right sides of the battery module (21) are in contact with the first positioning bracket (222) and the second positioning bracket (223) on opposite sides respectively; The first positioning bracket (222) and the second positioning bracket (223) are used to limit the position of the battery module (21) in the transverse direction.

5. The battery module extrusion system according to claim 4, characterized in that: A battery module (21), comprising a battery module body, foam (212), a rear end plate (213) and a front end plate (214); A battery module body, comprising a plurality of single battery cells (211) and foam (212); A vertically distributed foam (212) is provided between any two adjacent battery cells; A front plate (214) and a rear plate (213) are respectively provided on the front and rear sides of the battery module body; The battery module (21) further includes an upper steel strip (215) and a lower steel strip (216); The upper steel strip (215) and the lower steel strip (216) are used to be sleeved on the upper and lower ends of the four sides of the overall structure composed of the battery module body, the front end plate (214) and the rear end plate (213) after the battery module body, the front end plate (214) and the rear end plate (213) are extruded by the left station extruder (3) or the right station extruder (4).

6. The battery module extrusion system according to claim 1, characterized in that: The left-station extruder (3) and the right-station extruder (4) are symmetrically arranged on the left and right sides of the linear assembly (1); The shape and structure of the left-station extruder (3) and the right-station extruder (4) are completely the same; The right station extruder (4) comprises a frame (41), an extrusion assembly (42) and a side shift positioning assembly (43); An extrusion assembly (42) is respectively provided at the front and rear ends of the top of the frame (41); A lateral shift positioning assembly (43) is provided at the top middle position of the frame (41); Two squeezing assemblies (42) are used to perform squeezing operations on the front and rear sides of the battery module (21) in the battery module and tray assembly (2) placed therebetween; A lateral shift positioning assembly (43), on top of which a battery module and a tray assembly (2) are placed, and is used to drive the battery module and the tray assembly (2) to move leftward or rightward, thereby causing the battery module and the tray assembly (2) to move in the direction of the line body (11); The two extrusion components (42) are symmetrically distributed front and back; An extrusion assembly (42), comprising an electric cylinder (421) and an extrusion plate (424); An electric cylinder (421) is arranged on an electric cylinder mounting seat (420); The transmission shaft (4211) of the electric cylinder (421) is connected to the extrusion plate (424).

7. The battery module extrusion system according to claim 6, characterized in that: A side shift positioning assembly (43) comprises a first mounting plate (431), a first lifting cylinder (432), a lifting plate (433), a tray positioning pin (434), a first roller mounting bracket (435), a first double-row sprocket roller (436), a driving motor (437), a first chain (438) and a first rubber sleeve (439); A first mounting plate (431) is arranged at a top middle position of the frame (41); A first lifting cylinder (432) is respectively provided at the front and rear ends of the bottom of the first mounting plate (431); The power output end at the top of each first lifting cylinder (432) vertically penetrates a through hole reserved on the first mounting plate (431) and is connected to a laterally distributed lifting plate (433); A plurality of first rubber sleeves (439) are arranged between the two lifting plates (433); A first rubber sleeve (439) is used to contact the bottom of the tray (22) in the battery module and tray assembly (2) when the battery module and tray assembly (2) is transferred to the top of the right-station extruder (4) or the left-station extruder (3) by the lifting and side-shifting assembly (5); The two first lifting cylinders (432) are used to drive the lifting plate (433) to move vertically upward when the battery module and the tray assembly (2) are transferred to the top of the right-station extruder (4) or the left-station extruder (3) by the lifting and side-shifting assembly (5), thereby lifting the tray (22) upward so that the bottom of the tray (22) is separated from the first rubber sleeve (439) in the side-shifting positioning assembly (43), so that the battery module and the tray assembly (2) are positioned in the height direction in the right-station extruder (4).

8. The battery module extrusion system according to claim 7, characterized in that: Two first lifting cylinders (432) are symmetrically arranged front and rearwardly below the first mounting plate (431); and / or, A tray positioning pin (434) is respectively provided at the left end of the first lifting plate (433) located at the rear side and the right end of the first lifting plate (433) located at the front side; A tray positioning pin (434) is used to be inserted into a positioning sleeve (224) on the tray (22) in a corresponding manner; and / or, Two first roller mounting brackets (435) distributed laterally are provided between the two lifting plates (433); Two first roller mounting brackets (435) are symmetrically distributed front and back on the top of the first mounting plate (431); A plurality of first double-row sprocket rollers (436) distributed longitudinally are pivotally connected to one side opposite to the two first roller mounting brackets (435); A first rubber sleeve (439) is respectively provided at the front and rear ends of each first double-row sprocket roller (436); and / or, The extrusion assembly (42) also includes a grating ruler (423); The scale grating of the grating ruler (423) is fixed to the bottom of the transmission shaft (4211) of the electric cylinder (421); The grating ruler (423) has a grating reading head which is fixed on the bottom plate of the electric cylinder mounting seat (420); and / or, The extrusion assembly (42) also includes a pressure sensor (422); The transmission shaft (4211) is connected to the extrusion plate (424) via a pressure sensor (422); and / or, A driving motor (437) is provided at the bottom of the first mounting plate (431); A drive motor sprocket is provided on the power output end of the drive motor (437); The front end of each first double-row sprocket roller (436) is provided with two first sprockets spaced apart from each other in the front and rear directions; A plurality of first double-row sprocket rollers (436) have first sprockets at the front ends thereof, which are aligned transversely; Any first double-row sprocket roller (436) is linked to its adjacent first double-row sprocket roller (436) through a surrounding second chain (4382), and the second chain (4382) is wound around two first sprockets on the same side; The driving motor sprocket on the driving motor (437) is linked to a first sprocket located at the front end of the first double-row sprocket roller (436) on the leftmost side through a first chain (4381) distributed around it.

9. The battery module extrusion system according to claim 1, characterized in that: A lifting and side shifting assembly (5) comprises a second mounting plate (51), a second lifting cylinder (52), a lifting plate (53), a second roller mounting bracket (54), a power roller (55), a second double-row sprocket roller (56), a third chain (57) and a second rubber sleeve (58); The second mounting plate (51) is arranged on the line body (11) of the line body assembly (1) and is located in front of the rear stopper (12) of the tray; The second lifting cylinder (52) is arranged at the bottom of the second mounting plate (51); The power output end at the top of the second lifting cylinder (52) vertically penetrates a through hole reserved on the second mounting plate (51) and is connected to a lifting plate (53) distributed horizontally and longitudinally; A pair of second roller mounting brackets (54) are respectively provided at the two ends of the top of the lifting plate (53); Each pair of second roller mounting brackets (54) comprises two second roller mounting brackets (54) spaced apart from each other in the front and rear, and a plurality of longitudinally distributed second double-row sprocket rollers (56) and a power roller (55) are pivotally connected on opposite sides of the two second roller mounting brackets (54); A second rubber sleeve (58) is respectively provided at the front and rear ends of each second double-row sprocket roller (56) and the power roller (55); A second rubber sleeve (58) is used to contact the bottom of the tray (22) in the battery module and tray assembly (2) when the battery module and tray assembly (2) is transferred to the top of the lifting and side shifting assembly (5) by the line body (11); The second lifting cylinder (52) is used to drive the lifting plate (53) to move vertically upward when the battery module and the tray assembly (2) move with the line body (11) to the top of the lifting and side shifting assembly (5), thereby lifting the tray (22) upward so that the bottom of the tray (22) is separated from the line body (11).

10. The battery module extrusion system according to claim 9, characterized in that: Two power roller sprockets are arranged at the opposite ends of the two power rollers (55); Two power rollers (55) are located on the top right side of the lifting plate (53) and are aligned front and back; The number of the second double-row sprocket rollers (56) in the two pairs of second roller mounting brackets (54) is equal and they are symmetrically distributed front to back; The second double-row sprocket rollers (56) in the two pairs of second roller mounting brackets (54) have two second sprockets disposed at opposite ends; The power roller sprocket of each power roller (55) is linked to a second sprocket on the same side of the adjacent second double-row sprocket roller (56) via a third chain (57) distributed around it; Any second double-row sprocket roller (56) is linked to its adjacent second double-row sprocket roller (56) through a surrounding third chain (57), and the third chain (57) is wound around two second sprockets on the same side.

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