A battery pack assembly device and assembly method

Abstract

The application relates to the technical field of battery pack assembling, and relates to a battery pack assembling device and a battery pack assembling method. The battery pack assembling device comprises an insulating bottom plate, the top of the insulating bottom plate is provided with a workbench, the top of the workbench is provided with a detection arrangement mechanism, and the top of the insulating bottom plate is provided with a post-processing mechanism. After the battery cells are fed, the detection arrangement mechanism is used for testing the performance of the whole row of battery cells, then the arrangement positions of the battery cells are adjusted according to the test results, the performances of the adjacent battery cells are relatively consistent, the performance parameters of the whole row of battery cells after assembling are more balanced, and the safety performance of the battery pack after assembling is improved. After the battery cells are assembled, the post-processing mechanism is used for cleaning the welding positions of the battery cells, so that impurities are prevented from covering the positive and negative electrode welding points when the battery cells are crimped.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of battery pack assembly, and particularly relates to a battery pack assembly device and method. BACKGROUND

[0002] A battery pack refers to a structure of energy storage in which a plurality of battery cells are combined through series and parallel connection, and then integrated with a battery management system and an electrical system. In the assembly process, the basic units of energy storage and release need to be orderly installed in the upper and lower frames. In the existing battery pack assembly process, the corresponding number of battery cells are staggered and crimped into the frame for installing the battery cells. However, the overall performance of the whole row of battery cells cannot be relatively consistent before crimping. The safety performance of the battery pack after crimping and assembly cannot be guaranteed. At the same time, the original impurities in the frame after assembly are attached to the welding points of the positive and negative electrodes of the battery cells, which affects the subsequent welding process. Therefore, it is necessary to design a battery pack assembly device and method. SUMMARY

[0003] The purpose of the application is to provide a battery pack assembly device and method with simple structure and reasonable design to solve the above problems.

[0004] The application achieves the above-mentioned purposes through the following technical solutions:

[0005] A battery pack assembly device comprises an insulating bottom plate, a workbench is arranged on the top of the insulating bottom plate, a detection arrangement mechanism is arranged on the top of the workbench, a turnover and material lifting structure is arranged on the top of the workbench, a crimping and assembly mechanism is arranged on the top of the insulating bottom plate, a support conveying mechanism is arranged on one side of the crimping and assembly mechanism, and a post-processing mechanism is arranged on the top of the insulating bottom plate.

[0006] The detection arrangement mechanism comprises a battery rack fixed on the workbench, a support frame is slidably connected to one side of the battery rack, the output end of a test air cylinder is fixedly connected to the support frame, the test air cylinder is fixed to the battery rack, test connectors are fixedly installed in the grooves evenly arranged on the support frame, series connectors are fixedly connected to the grooves evenly arranged on the side of the battery rack away from the support frame, a partition plate is slidably connected to the battery rack, the output end of a partition air cylinder is fixedly connected to the partition plate, and the partition air cylinder is fixed to the workbench. A feeding mechanism is arranged on the workbench.

[0007] As a further optimization scheme of the application, the feeding mechanism comprises a feeding support fixed on the workbench, a feeding table is slidably connected to the feeding support, the feeding table is connected to a feeding lead screw, the feeding lead screw is rotatably connected to the feeding support, a feeding motor is arranged on the feeding support, and one end of the feeding lead screw is fixedly connected to the feeding motor.

[0008] As a further optimization scheme of the present application, the feeding table is provided with a downward pressing cylinder, the output end of the downward pressing cylinder is fixedly connected to a downward pressing frame, the downward pressing frame is slidingly connected to the feeding table, the bottom of the downward pressing frame is uniformly provided with electromagnetic clamps, and the two sides of the downward pressing frame are symmetrically provided with side cylinders, and the output end of the side cylinder is provided with an electromagnetic clamp.

[0009] As a further optimization scheme of the present application, the turnover lifting structure comprises a first support and a second support fixed on both sides of the workbench, the top of the first support is provided with a first cylinder, the output end of the first cylinder is fixedly connected with a cylinder support, the bottom of the cylinder support is provided with a first rotary cylinder, the output end of the first rotary cylinder is provided with a rotary support, and the bottom of the rotary support is uniformly provided with electromagnetic clamps.

[0010] As a further optimization scheme of the present application, the second support is provided with a turnover motor, the output end of the turnover motor is fixedly connected with a turnover frame, the turnover frame is rotatably connected to the second support, and the turnover frame is provided with a positioning cylinder, the output end of the positioning cylinder is fixedly connected with a positioning frame, the positioning frame is uniformly provided with electromagnetic clamps, the positioning frame is provided with a thrust support, the thrust support is provided with a thrust cylinder, and the output end of the thrust cylinder is fixedly connected to a pushing frame.

[0011] As a further optimization scheme of the present application, the top of the workbench is fixedly provided with a feeding cylinder, the output end of the feeding cylinder is fixedly connected to a sliding table, the sliding table is slidingly connected to a sliding support, and the sliding support is fixedly connected to the top of the workbench.

[0012] As a further optimization scheme of the present application, the crimping assembly mechanism comprises a horizontal moving support fixed on an insulating base plate, a horizontal electric sliding rail provided on the horizontal moving support, a vertical electric sliding rail mounted on the horizontal electric sliding rail, a connecting frame mounted on the vertical electric sliding rail, a crimping cylinder provided on the connecting frame, a crimping support fixedly connected to the output end of the crimping cylinder, a clamping cylinder fixedly connected in the crimping support, and a crimping clamp fixedly connected to the output end of the clamping cylinder.

[0013] As a further optimization scheme of the present application, the support conveying mechanism comprises a feeding electric sliding rail fixed on an insulating base plate, a supporting table mounted on the feeding electric sliding rail, a lifting cylinder symmetrically provided on both sides of the supporting table, a lifting plate fixedly connected to the output end of the lifting cylinder, a fixing cylinder mounted on the lifting plate, a fixing frame fixedly connected to the output end of the fixing cylinder, a second rotary cylinder provided on the fixing frame, and a fixing clamp fixedly connected to the output end of the second rotary cylinder.

[0014] As a further optimization scheme of the application, the post-processing mechanism comprises a processing support fixed on the insulating bottom plate, a mounting rack is arranged on the processing support, the mounting rack is located above the feeding electric slide rail, a processing cylinder is arranged on the mounting rack, the output end of the processing cylinder is fixedly connected with a lower pressing plate, the bottom of the lower pressing plate is fixedly connected with a mounting frame, a cleaning column is rotatably connected in the through hole uniformly arranged on the bottom of the mounting frame, a cleaning brush is arranged at the bottom end of the cleaning column, a driven gear is fixedly sleeved at the top end of the cleaning column, adjacent driven gears are meshed with each other, one of the driven gears is meshed and connected with a transmission gear, the output end of a gear motor is fixedly connected with the transmission gear, and the gear motor is fixed in the mounting frame.

[0015] A battery pack assembling method, specifically comprising the following steps:

[0016] Step one, cell feeding: first, the whole row of battery cells is clamped to the upper side of one end of the battery rack by the feeding mechanical arm, then the clamping of the cell is released, the cell gradually rolls down to the one end of the battery rack, then the output end of the separation cylinder is extended, the separation plate is driven to move upward, the separation plate supports the cell, and the cell is arranged in the notch uniformly arranged on the top of the separation plate in sequence;

[0017] Step two, sorting clamping: the support frame is driven by the test cylinder to approach the battery rack, and after the two ends of the battery cell contact the series connector and the test connector respectively, the test module connected by the test connector measures the internal resistance and capacity of the battery cell. After the internal resistance and capacity of the whole row of battery cells are measured, the test cylinder drives the support frame to return to the original position. The feeding motor drives the feeding screw to rotate, and the feeding table slides along the feeding support to adjust the position of the pressing frame. Then the pressing cylinder drives the pressing frame to move down, and the electromagnetic clamping jaw at the output end is driven by the side cylinder to move down and press on the battery cell. Then the electromagnetic clamping jaw is electrified to generate magnetism to adsorb the battery cells with large performance difference in the whole row. Then the feeding motor and the side cylinder are operated to arrange the whole row of battery cells to balance the performance of adjacent battery cells. Then the five battery cells arranged are clamped by the evenly distributed electromagnetic clamping jaws in the pressing frame at the same time. The feeding motor drives the feeding table to move, and the five independent battery cells are placed on the sliding table. When the feeding cylinder moves the sliding table to one side of the first support, the first cylinder drives the cylinder support to move down. The electromagnetic clamping jaw at the bottom of the rotating support clamps the battery cell alternately. When the output end of the first cylinder returns to the original position, the rotating support and the battery cell are rotated by one hundred and eighty degrees by the first rotating cylinder. Then the battery cell is placed on the sliding table by the first cylinder, so that the five battery cells are arranged alternately, the distance between the positive and negative electrodes of adjacent battery cells is shortened, and the later welding process is simplified. The feeding motor drives the feeding table to move again, and moves the feeding table to one side of the second support. The turnover motor drives the turnover frame to turn over, and the alignment frame is buckled on the sliding table. The electromagnetic clamping jaw in the alignment frame fixes the battery cell. The turnover motor drives the turnover frame to return to the original position, and the pushing frame moves up by the thrust cylinder, so that the five battery cells are at the same height position.

[0018] Step three, stacking and fixing: the horizontal position of the longitudinal electric sliding rail is adjusted by the transverse electric sliding rail, and the height of the connecting frame is adjusted by the longitudinal electric sliding rail. At the same time, the alignment cylinder drives the alignment frame to move forward, and the battery cell is moved to the bottom of the crimping support. The crimping cylinder drives the crimping support to move down, and the clamping cylinder drives the crimping clamps to move close to each other to clamp and fix the battery cell. At the same time, the outer frame of the battery pack is clamped by the fixed clamps on the output end of the second rotating cylinder, and is moved to one side of the transverse support by the feeding electric sliding rail. After the transverse electric sliding rail and the longitudinal electric sliding rail move the crimping support above the outer frame of the battery pack, the crimping cylinder drives the crimping support to move down to press the battery cell between the crimping clamps into the outer frame of the battery pack. Then a plurality of groups of battery cells are crimped in turn to complete the assembly.

[0019] Step four, clean the output: after the battery pack frame is moved to the installation frame below by the feeding electric slide rail, the processing cylinder drives the lower plate to move, the installation frame is pressed on one end of the battery cell, the gear motor drives the transmission gear to rotate, the meshing drives the driven gear and the cleaning column to rotate, the cleaning brush at the bottom of the cleaning column is used to clean the positive and negative electrodes of the battery cell, then the lifting cylinder drives the lifting plate to move up, the second rotary cylinder drives the battery pack frame between the fixed clamping plates to overturn, the other side of the battery cell is cleaned again by the post-processing mechanism, and the positive and negative electrode welding points are avoided from being covered by impurities in the process of pressing the battery cell.

[0020] The beneficial effects of the present application are:

[0021] 1、The present application tests the resistance and capacity of the battery cell by the test module connected to the test joint after the test cylinder drives the support frame to approach the battery rack, and the two ends of the battery cell contact the series joint and the test joint, respectively, after the determination of the whole row of battery cells is completed, the test cylinder drives the support frame to return to the original position, the feeding motor drives the feeding screw to rotate, the feeding table is driven to slide along the feeding support to adjust the position of the lower pressing frame, the lower pressing cylinder drives the lower pressing frame to move down, and then the electromagnetic clamping jaw at the output end is driven to move down and press on the battery cell, after that, the electromagnetic clamping jaw generates magnetism after being electrified to adsorb the battery cells with relatively large performance difference in the whole row, the feeding motor and the side cylinder are operated to arrange the whole row of battery cells, so that the performance of adjacent battery cells is relatively consistent, the performance parameters of the whole row of battery cells after assembly are more balanced, and the safety performance of the battery pack after assembly is improved.

[0022] 2、The present application moves the battery pack frame to the installation frame below by the feeding electric slide rail after the battery cell is assembled, drives the lower plate to move by the processing cylinder, and presses the installation frame on one end of the battery cell, in the process of driving the transmission gear to rotate by the gear motor, the meshing drives the driven gear and the cleaning column to rotate, the cleaning brush at the bottom of the cleaning column is used to clean the positive and negative electrodes of the battery cell, then the lifting cylinder drives the lifting plate to move up, the second rotary cylinder drives the battery pack frame to overturn, and the positive and negative electrodes of the battery cell on the other side are cleaned again by the post-processing mechanism, so that the positive and negative electrode welding points are avoided from being covered by impurities in the process of pressing the battery cell. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a whole structure schematic diagram of the present application;

[0024] Figure 2 It is a structure schematic diagram of the detection arrangement mechanism in the present application;

[0025] Figure 3 It is a structure schematic diagram of the separation plate in the present application;

[0026] Figure 4 It is an installation position schematic diagram of the test cylinder in the present application;

[0027] Figure 5 is the position diagram of the lower pressing frame in the application;

[0028] Figure 6 is the structure diagram of the crimping assembly mechanism in the application;

[0029] Figure 7 is the structure diagram of the turnover lifting structure in the application;

[0030] Figure 8 is the structure diagram of the support conveying mechanism in the application

[0031] Figure 9 is the structure diagram of the post-processing mechanism in the application;

[0032] Figure 10 is Figure 9 is the local enlarged view of the A area in the application;

[0033] Figure 11 is the flow chart of the method of the application.

[0034] In the figure: 1, insulating bottom plate; 2, workbench; 3, detection arrangement mechanism; 4, turnover lifting structure; 5, crimping assembly mechanism; 6, support conveying mechanism; 7, post-processing mechanism; 301, battery rack; 302, test joint; 303, series joint; 304, support frame; 305, test cylinder; 306, partition plate; 307, partition cylinder; 310, feeding support; 311, feeding table; 312, feeding motor; 313, lower pressing cylinder; 314, lower pressing frame; 315, side cylinder; 401, first support; 402, second support; 403, first cylinder; 404, first rotary cylinder; 405, turnover motor; 406, turnover frame; 407, alignment cylinder; 408, alignment frame; 409, thrust cylinder; 410, thrust support; 411, pushing frame; 412, feeding cylinder; 413, sliding table; 414, sliding support; 415, rotary support; 501, transverse movement support; 503, connecting frame; 504, crimping cylinder; 505, clamping cylinder; 506, longitudinal electric sliding rail; 507, crimping clamp plate; 601, support table; 602, lifting cylinder; 603, lifting plate; 604, fixing cylinder; 605, second rotary cylinder; 606, fixed clamp plate; 701, processing support; 702, mounting frame; 703, processing cylinder; 704, lower pressing plate; 705, mounting frame; 707, driven gear; 708, gear motor; 710, cleaning column. DETAILED DESCRIPTION

[0035] The application will be described in further detail below with reference to the drawings. It is necessary to point out here that the following specific embodiments are only used to further illustrate the application and cannot be understood as limiting the scope of protection of the application. Those skilled in the art can make some non-essential improvements and adjustments to the application according to the above application content.

[0036] Embodiment: please refer to Figures 1-10 A battery pack assembling device, comprising an insulating base plate 1, the top of the insulating base plate 1 is provided with a workbench 2, the top of the workbench 2 is provided with a detection and arrangement mechanism 3 for detecting the performance of independent battery cells and sorting the whole row of battery cells according to the performance difference, the top of the workbench 2 is provided with a turnover and lifting structure 4 for adjusting the corresponding positions of the positive and negative electrodes of the battery cells, the top of the insulating base plate 1 is provided with a crimping and assembling mechanism 5 for clamping the whole row of battery cells and crimping and inserting the battery cells into the outer frame of the battery pack, one side of the crimping and assembling mechanism 5 is provided with a support conveying mechanism 6 for conveying the outer frame of the battery pack, the top of the insulating base plate 1 is provided with a post-processing mechanism 7 which can cooperate with the support conveying mechanism 6 to clean the positive and negative electrodes of the crimped battery cells, thereby ensuring the normal progress of the subsequent welding process.

[0037] Please refer to Figures 2-5, the detection arrangement mechanism 3 includes the battery rack 301 fixed on the workbench 2, the battery rack 301 is used to support the cylindrical independent battery cell, one side of the battery rack 301 is slidably connected with the support frame 304, the support frame 304 is fixedly connected with the output end of the test cylinder 305, the test cylinder 305 is fixed on the battery rack 301 through the support, the test joint 302 is fixedly installed in the groove evenly arranged on the support frame 304, and the series joint 303 is fixedly connected in the groove evenly arranged on the side, away from the support frame 304, of the battery rack 301, after the two ends of the battery cell contact the series joint 303 and the test joint 302 respectively during testing, the corresponding test loop is formed, the test module connected with the test joint 302 and the series joint 303 determines the internal resistance and capacity of the battery cell, the separation plate 306 is slidably connected in the battery rack 301, the cylindrical notch for limiting the battery cell is arranged on the separation plate 306, the separation plate 306 is fixedly connected with the output end of the separation cylinder 307, the separation cylinder 307 is fixed on the workbench 2, the feeding mechanism is arranged on the workbench 2, the feeding mechanism includes the feeding support 310 fixed on the workbench 2, the feeding table 311 is slidably connected on the feeding support 310 through the guide rail and the sliding block, the feeding table 311 is connected on the feeding screw through the ball nut embedded and installed, the feeding screw is rotatably connected in the feeding support 310 through the bearing, the feeding motor 312 for driving the feeding screw to rotate is fixedly installed on the feeding support 310, the pressing cylinder 313 is arranged on the feeding table 311, the output end of the pressing cylinder 313 is fixedly connected on the pressing frame 314, the pressing frame 314 is slidably connected on the feeding table 311 through the guide rod arranged on the top, the electromagnetic clamping jaw is evenly arranged on the bottom of the pressing frame 314, the side cylinder 315 is symmetrically arranged on the both sides of the pressing frame 314, the output end of the side cylinder 315 is provided with the electromagnetic clamping jaw (the electromagnetic clamping jaw belongs to the prior art and is not described in detail), the electromagnetic clamping jaw corresponds to the profile of the cylindrical battery cell, and the electromagnetic clamping jaw can generate magnetism to magnetically attract and clamp the cylindrical battery cell when electrified.

[0038] Please refer to Figure 7, the turnover lifting structure 4 includes first supports 401 and second supports 402 fixed on both sides of the workbench 2, the top of the first support 401 is provided with a first cylinder 403, the output end of the first cylinder 403 is fixedly connected with a cylinder support, the cylinder support is slidingly connected to the first support 401 through the symmetrically arranged guide rods on the top, the bottom of the cylinder support is provided with a first rotary cylinder 404, the output end of the first rotary cylinder 404 is provided with a rotary support 415, the bottom of the rotary support 415 is uniformly provided with electromagnetic clamps, the second support 402 is provided with a turnover motor 405, the turnover motor 405 is used to drive the rotation of a turnover frame 406 fixed on the output end, the turnover frame 406 is rotatably connected to the second support 402 through a bearing, and the turnover frame 406 is provided with a positioning cylinder 407, the output end of the positioning cylinder 407 is fixedly connected with a positioning frame 408, the positioning frame 408 is uniformly provided with electromagnetic clamps, the positioning frame 408 is provided with a thrust support 410, the thrust support 410 is provided with a thrust cylinder 409, the output end of the thrust cylinder 409 is fixedly connected to a pushing frame 411, the position of the battery cell is adjusted by moving the positioning frame 408 through the positioning cylinder 407 during the transportation of the battery cell, and the battery cell is lifted from the bottom by the upward movement of the pushing frame 411 driven by the thrust cylinder 409, so that the height of the whole row of battery cells is consistent, and the battery cell is prevented from falling off, and the top of the workbench 2 is fixedly provided with a feeding cylinder 412 through a support, the output end of the feeding cylinder 412 is fixedly connected with a sliding table 413, the sliding table 413 is slidingly connected between sliding supports 414, the sliding supports 414 are symmetrically fixed on the top of the workbench 2, and the bottom of the sliding table 413 is slidingly connected to a sliding guide rail through a sliding block, and the sliding guide rail is installed on the top of the workbench 2.

[0039] Please refer to Figure 6 , the crimping assembly mechanism 5 includes a horizontal moving support 501 fixed on the insulating bottom plate 1, the horizontal moving support 501 is provided with a horizontal electric sliding rail (the horizontal electric sliding rail is prior art), the horizontal electric sliding rail is provided with a vertical electric sliding rail 506, the vertical electric sliding rail 506 is provided with a connecting frame 503, the horizontal electric sliding rail is used to drive the horizontal movement of the vertical electric sliding rail 506, and the vertical electric sliding rail 506 is used to drive the vertical movement of the connecting frame 503, the connecting frame 503 is provided with a crimping cylinder 504, the output end of the crimping cylinder 504 is fixedly connected with a crimping support, the crimping support is slidingly connected to the connecting frame 503 through the symmetrically arranged guide rods on the top, the crimping support is fixedly connected with a clamping cylinder 505, the output end of the clamping cylinder 505 is fixedly connected with a crimping clamp plate 507, and the battery cell is clamped by the mutual approach of the crimping clamp plates 507 driven by the clamping cylinder 505 during the transfer of the battery cell.

[0040] Please refer to Figure 8The support conveying mechanism 6 comprises a feeding electric slide rail fixed on the insulating bottom plate 1, a supporting table 601 is installed on the feeding electric slide rail, the feeding electric slide rail is used to drive the supporting table 601 to move along the direction of the slide rail, lifting cylinders 602 are symmetrically arranged on the two sides of the supporting table 601, the output ends of the lifting cylinders 602 are fixedly connected with lifting plates 603, fixed cylinders 604 are installed on the lifting plates 603, the output ends of the fixed cylinders 604 are fixedly connected on a fixing frame, a second rotating cylinder 605 is arranged on the fixing frame, the output end of the second rotating cylinder 605 is fixedly connected with a fixed clamping plate 606, the battery pack outer frame is placed on the supporting table 601 through the feeding structure of the battery pack outer frame, then the fixed cylinders 604 are used to drive the two fixed clamping plates 606 to move close to each other to clamp and fix the battery pack outer frame, when the battery structure is turned over after the crimping of the battery cell, the lifting cylinders 602 drive the lifting plates 603 to move upwards, and the two second rotating cylinders 605 are controlled to rotate synchronously through an external controller, so that the whole battery structure can be turned over.

[0041] Please refer to Figures 9-10 The post-processing mechanism 7 comprises a processing support 701 fixed on the insulating bottom plate 1, a mounting frame 702 is fixedly connected on the processing support 701 through bolts, the mounting frame 702 is located above the feeding electric slide rail, a processing cylinder 703 is arranged on the mounting frame 702, the output end of the processing cylinder 703 is fixedly connected with a pressing plate 704, the pressing plate 704 is slidingly connected on the mounting frame 702 through the guide rods symmetrically arranged on the top, the bottom of the pressing plate 704 is fixedly connected with a mounting frame 705, the cleaning columns 710 are rotatably connected in the through holes evenly arranged on the bottom of the mounting frame 705 through bearings, the bottom end of the cleaning column 710 is provided with a cleaning brush, and the top end of the cleaning column 710 is fixedly sleeved with a driven gear 707, the adjacent driven gears 707 are meshed with each other, and one of the driven gears 707 is meshed and connected with a transmission gear, the output end of a gear motor 708 is fixedly connected with the transmission gear, the gear motor 708 is fixed in the mounting frame 705, in the process that the gear motor 708 drives the transmission gear to rotate, the driven gear 707 is driven to rotate, then all the cleaning columns 710 are driven to rotate through the meshing between the driven gears 707, and then the position to be welded is cleaned through the cleaning brush at the bottom of the cleaning column 710.

[0042] Please refer to Figure 11 The application provides a battery pack assembling method, and specifically comprises the following steps.

[0043] Step one, cell loading: first, the whole row of battery cells is clamped to the top of one end of the battery rack 301 by the loading manipulator, then the clamping of the cells is released to make the cells roll down along the battery rack 301 to the end of the battery rack 301, then the output end of the separation cylinder 307 is extended to drive the separation plate 306 to move up, the separation plate 306 moves up to support the cells and make the cells arranged in the evenly opened slots on the top of the separation plate 306 in turn;

[0044] Step two, sorting and clamping: the support frame 304 is driven by the test cylinder 305 to approach the battery rack 301, after the two ends of the cell contact the series joint 303 and the test joint 302 respectively, the test module connected by the test joint 302 measures the internal resistance and capacity of the cell, after the whole row of cells is measured, the support frame 304 is returned to the home position by the test cylinder 305, the feeding screw is rotated by the feeding motor 312, the feeding table 311 is driven to slide along the feeding support 310 to adjust the position of the pressing frame 314, then the pressing cylinder 313 drives the pressing frame 314 to move down, at the same time, the electromagnetic clamps on the output end of the side cylinder 315 move down to press on the cells, then the electromagnetic clamps are electrified to generate magnetism to adsorb the cells with large performance difference in the whole row, then the whole row of cells is arranged by the operation of the feeding motor 312 and the side cylinder 315 to balance the performance of adjacent cells, then the five cells arranged are clamped by the evenly distributed electromagnetic clamps in the pressing frame 314 at the same time, the five independent cells are placed on the sliding table 413 by moving the feeding table 311 driven by the feeding motor 312, when the sliding table 413 is moved to one side of the first support 401 by the feeding cylinder 412, the first cylinder 403 drives the cylinder support to move down, the electromagnetic clamps at the bottom of the rotating support 415 are matched to clamp the cells alternately, the output end of the first cylinder 403 returns to the home position at the same time, the rotating support 415 and the cells are rotated one hundred and eighty degrees by the first rotating cylinder 404, then the cells are placed back on the sliding table 413 by the first cylinder 403, so that the five cells are arranged alternately, the distance between the positive and negative electrodes of adjacent cells is shortened, and the later welding process is simplified, the feeding table 311 is moved to one side of the second support 402 by the feeding motor 312 again, the turnover motor 405 drives the turnover frame 406 to turn over, the alignment frame 408 is buckled on the sliding table 413, the cells are fixed by the electromagnetic clamps in the alignment frame 408, the turnover motor 405 drives the turnover frame 406 to return to the home position, then the pushing frame 411 is moved up by the thrust cylinder 409, so that the five cells are at the same height position;

[0045] Step three, stack fixing: adjust the horizontal position of the longitudinal electric slide rail 506 through the transverse electric slide rail, cooperate with the longitudinal electric slide rail 506 to adjust the height of the connecting frame 503, and simultaneously align the cylinder 407 to drive the alignment frame 408 to move forward, move the battery cell to the lower part of the crimping support, drive the crimping support to move downward through the clamping cylinder 505 while driving the crimping clamp plate 507 to move close to each other to clamp and fix the battery cell; At the same time, the outer frame of the battery pack is clamped by the fixed clamp plate 606 on the output end of the second rotary cylinder 605, and is moved to one side of the transverse support 501 by the feeding electric slide rail. The transverse electric slide rail and the longitudinal electric slide rail 506 move the crimping support above the battery pack outer frame, and then the crimping cylinder 504 drives the crimping support to move downward to press the battery cell between the crimping clamp plate 507 into the battery pack outer frame, and then press a plurality of groups of battery cells in turn to complete the assembly.

[0046] Step four, cleaning and discharging: after the battery cell is assembled, the battery pack outer frame is moved to the lower part of the mounting frame 702 by the feeding electric slide rail, the processing cylinder 703 drives the lower pressing plate 704 to move, and the mounting frame 705 is pressed on one end of the battery cell. In the process of driving the transmission gear to rotate by the gear motor 708, the driven gear 707 and the cleaning column 710 are engaged and rotated, and the cleaning brush at the bottom of the cleaning column 710 is used to clean the positive and negative electrodes of the battery cell. Then the lifting cylinder 602 drives the lifting plate 603 to move upward, the second rotary cylinder 605 drives the battery pack outer frame between the fixed clamp plates 606 to overturn, and the other side of the battery cell is cleaned again by the post-processing mechanism 7. The positive and negative electrodes are cleaned to avoid covering the positive and negative electrode welding points during crimping the battery cell.

[0047] The above-described embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as limiting the scope of the patent of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of protection of the present application.

Claims

1. A battery pack assembly apparatus comprising an insulating floor, characterized by: The top of the insulation bottom plate is provided with a workbench, the top of the workbench is provided with a detection arrangement mechanism, the top of the workbench is provided with a turnover lifting structure, the top of the insulation bottom plate is provided with a crimping assembly mechanism, one side of the crimping assembly mechanism is provided with a support conveying mechanism, and the top of the insulation bottom plate is provided with a post-processing mechanism. The detection arrangement mechanism comprises a battery rack fixed on the workbench, a support frame is slidably connected to one side of the battery rack, an output end of a test air cylinder is fixedly connected to the support frame, the test air cylinder is fixed on the battery rack, test joints are fixedly installed in grooves evenly arranged on the support frame, series joints are fixedly connected to grooves evenly arranged on the side of the battery rack away from the support frame, a partition plate is slidably connected to the battery rack, an output end of a partition air cylinder is fixedly connected to the partition plate, and the partition air cylinder is fixed on the workbench. The feeding mechanism comprises a feeding support fixed on the workbench, a feeding table is slidably connected to the feeding support, the feeding table is connected to a feeding screw rod, the feeding screw rod is rotatably connected to the feeding support, the feeding support is provided with a feeding motor, one end of the feeding screw rod is fixedly connected to the feeding motor, the feeding table is provided with a pressing air cylinder, an output end of the pressing air cylinder is fixedly connected to a pressing frame, the pressing frame is slidably connected to the feeding table, the bottom of the pressing frame is uniformly provided with electromagnetic clamps, and the two sides of the pressing frame are symmetrically provided with side air cylinders, and the output end of the side air cylinder is provided with an electromagnetic clamp. The turnover lifting structure comprises first and second supports fixed on the two sides of the workbench, a first air cylinder is arranged on the top of the first support, an output end of the first air cylinder is fixedly connected with an air cylinder support, a first rotary air cylinder is arranged on the bottom of the air cylinder support, a rotary support is arranged on the output end of the first rotary air cylinder, electromagnetic clamps are uniformly arranged on the bottom of the rotary support, a turnover motor is installed on the second support, an output end of the turnover motor is fixedly connected with a turnover frame, the turnover frame is rotatably connected to the second support, a positioning air cylinder is arranged on the turnover frame, an output end of the positioning air cylinder is fixedly connected with a positioning frame, electromagnetic clamps are uniformly arranged on the positioning frame, a thrust support is installed on the positioning frame, a thrust air cylinder is arranged on the thrust support, an output end of the thrust air cylinder is fixedly connected to a pushing frame, and a feeding air cylinder is fixedly installed on the top of the workbench.

2. The battery pack assembly apparatus of claim 1, wherein: The crimping assembly mechanism comprises a horizontal moving support fixed on the insulation bottom plate, a horizontal electric sliding rail is arranged on the horizontal moving support, a vertical electric sliding rail is installed on the horizontal electric sliding rail, a connecting frame is installed on the vertical electric sliding rail, a crimping air cylinder is arranged on the connecting frame, an output end of the crimping air cylinder is fixedly connected with a crimping support, a clamping air cylinder is fixedly connected in the crimping support, and an output end of the clamping air cylinder is fixedly connected with a crimping clamp plate.

3. The battery pack assembly apparatus of claim 2, wherein: The support conveying mechanism comprises a feeding electric slide rail fixed on the insulating bottom plate, a supporting table is installed on the feeding electric slide rail, lifting cylinders are symmetrically arranged on two sides of the supporting table, lifting plates are fixedly connected to output ends of the lifting cylinders, fixed cylinders are installed on the lifting plates, output ends of the fixed cylinders are fixedly connected to a fixing frame, a second rotating cylinder is arranged on the fixing frame, and fixed clamping plates are fixedly connected to an output end of the second rotating cylinder.

4. The battery pack assembly apparatus of claim 3, wherein: The post-processing mechanism comprises a processing support fixed on the insulating bottom plate, a mounting frame is arranged on the processing support, the mounting frame is located above the feeding electric slide rail, a processing cylinder is arranged on the mounting frame, a lower pressing plate is fixedly connected to an output end of the processing cylinder, an installation frame is fixed to the bottom of the lower pressing plate, cleaning columns are rotatably connected to through holes uniformly arranged in the bottom of the installation frame, cleaning brushes are arranged at bottom ends of the cleaning columns, driven gears are fixedly sleeved with top ends of the cleaning columns, adjacent driven gears are in meshing connection with each other, one of the driven gears is in meshing connection with a transmission gear, the transmission gear is fixedly connected to an output end of a gear motor, and the gear motor is fixed in the installation frame.

5. A battery pack assembling method based on the battery pack assembling apparatus according to claim 4, characterized by, Specifically comprises the following steps: Step one, cell loading: first, the whole row of battery cells is clamped to the top of one end of the battery rack by the loading mechanical arm, then the clamping of the battery cells is released, the battery cells are gradually rolled to one end of the battery rack, then the output end of the separation cylinder is extended, the separation plate is driven to move upwards, the separation plate supports the battery cells, and the battery cells are sequentially arranged in the notches uniformly arranged on the top of the separation plate; Step two, sorting clamping: the support frame is driven by the test cylinder to approach the battery rack, and the two ends of the battery cell contact the series connector and the test connector respectively. The test module connected by the test connector measures the internal resistance and capacity of the battery cell. After the measurement of the whole row of battery cells is completed, the test cylinder drives the support frame to return to the original position. The feeding motor drives the feeding screw to rotate, and the feeding table slides along the feeding support to adjust the position of the pressing frame. Then the pressing cylinder drives the pressing frame to move down, and the electromagnetic clamps on the output end are driven by the side cylinder to move down and press on the battery cell. After that, the electromagnetic clamps are energized to generate magnetism and adsorb the battery cells with large performance difference in the whole row. Then, through the operation of the feeding motor and the side cylinder, the whole row of battery cells is arranged to balance the performance of adjacent battery cells. Then, the five battery cells are clamped simultaneously by the evenly distributed electromagnetic clamps in the pressing frame. The feeding motor drives the feeding table to move, and the five independent battery cells are placed on the sliding table. When the feeding cylinder moves the sliding table to one side of the first support, the first cylinder drives the cylinder support to move down. The electromagnetic clamps at the bottom of the rotating support clamp the battery cells alternately. When the output end of the first cylinder returns to the original position, the first rotating cylinder drives the rotating support and the battery cells to rotate one hundred and eighty degrees. Then the first cylinder puts the battery cells back on the sliding table, so that the five battery cells are arranged alternately, shortening the distance between the positive and negative electrodes of adjacent battery cells and simplifying the later welding process. The feeding motor drives the feeding table to move again, and moves the feeding table to the side of the second support. The turnover motor drives the turnover frame to turn over, and the alignment frame is buckled on the sliding table. The electromagnetic clamps in the alignment frame fix the battery cells. The turnover motor drives the turnover frame to return to the original position, and the pushing cylinder drives the pushing frame to move up, so that the five battery cells are at the same height. Step three, stacking and fixing: adjust the horizontal position of the longitudinal electric sliding rail through the transverse electric sliding rail, adjust the height of the connecting frame with the longitudinal electric sliding rail, and move the battery cell to the position below the crimping support by driving the alignment cylinder to move forward. The crimping cylinder drives the crimping support to move down, and the clamping cylinder drives the crimping clamps to move close to each other to clamp and fix the battery cell. At the same time, the outer frame of the battery pack is clamped by the fixed clamps on the output end of the second rotating cylinder, and is moved to the side of the horizontal sliding support by the feeding electric sliding rail. The transverse electric sliding rail and the longitudinal electric sliding rail move the crimping support above the outer frame of the battery pack, and then the crimping cylinder drives the crimping support to move down to press the battery cells between the crimping clamps into the outer frame of the battery pack. Then, a plurality of groups of battery cells are crimped in turn to complete the assembly. Step four, clean out of the material: after the battery pack frame is moved to the installation frame below by the feeding electric slide rail, the processing cylinder drives the lower plate to move, and the installation frame is pressed on one end of the battery cell. In the process of driving the transmission gear to rotate by the gear motor, the driven gear and the cleaning column are engaged and rotated. The cleaning brush at the bottom of the cleaning column is used to clean the positive and negative electrodes of the battery cell. Then the lifting cylinder drives the lifting plate to move up. The battery pack frame between the fixed clamping plates is turned over by the second rotary cylinder. The positive and negative electrodes of the battery cell on the other side are cleaned again by the post-processing mechanism to avoid covering the positive and negative electrode welding points during the crimping process.

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