A battery cell OCV automatic detection equipment

Abstract

The present invention discloses an automatic OCV detection device for battery cells, which relates to the field of battery cell detection technology, and includes an incoming material station, a manipulator, a detection station, a sorting station, and a discharging station, etc. Among them, the clamping mechanism of the manipulator includes a first fixed frame, and the first fixed frame is provided with a plurality of clamping claw units for clamping battery cells arranged horizontally through a variable distance module. The first fixed frame is provided with the first lifting frame so as to be movable up and down. The first lifting frame is provided with the bottom plate so as to be swingable toward the bottom of the plurality of clamped battery cells. And the first lifting frame is provided with a suction cup for grabbing the carrier. The transfer conveyor line of the sorting station moves and switches between the downstream end of the cache conveyor line, the upstream end of the OK conveyor line, the upstream end of the NG conveyor line, and the OK temporary storage conveyor line through the second electric slide module. It can be seen that the present invention can realize the automated operation of the battery cell detection assembly line including transportation, OCV detection and sorting.

Description

Technical Field

[0001] The present invention relates to the technical field of battery cell detection, and in particular to an automatic OCV detection device for a battery cell. Background Art

[0002] The current trend toward new energy is significant, and product requirements are increasingly stringent. Therefore, OCV testing of battery cells is crucial. OCV testing requires testing the product's voltage and resistance. Currently, OCV testing of battery cells requires manual loading and unloading, voltage measurement, and sorting of qualified and unqualified products. This is labor-intensive and results in low efficiency for large-scale production. Therefore, it is necessary to develop automated equipment for battery OCV testing and sorting of qualified products. Currently, there are no fully automated production lines for OCV testing of battery cells on the market. Testing and sorting require manual handling, which is time-consuming and labor-intensive, and can easily damage the battery cells. Summary of the Invention

[0003] The purpose of the present invention is to provide an automatic detection device for battery cell OCV, which aims to overcome the above-mentioned problems existing in the prior art.

[0004] To achieve the purpose, the present invention provides the following technical solutions:

[0005] An automatic OCV detection device for battery cells, comprising a material incoming station, a manipulator, a detection station and a sorting station;

[0006] The above-mentioned incoming material station is used to place at least one carrier containing a plurality of battery cells;

[0007] The above-mentioned robot is used to transfer the battery cells from the incoming material station to the inspection station; the robot includes a robot arm and a clamping mechanism provided on the robot arm, the clamping mechanism includes a first fixed frame, a clamping unit, a first lifting frame, a bottom plate and a grasping unit, the first fixed frame is fixedly connected to the robot arm, the first fixed frame is provided with a plurality of clamping units for clamping the battery cells arranged in a transverse arrangement, the first fixed frame is provided with the first lifting frame so as to be movable up and down, the first lifting frame is provided with the bottom plate so as to be swingable towards the bottom of the plurality of clamped battery cells, and the first lifting frame is provided with a grasping unit for grasping the carrier;

[0008] The above-mentioned inspection station includes a conveyor line, an electrical connection mechanism and a second blocking mechanism; the upstream end of the above-mentioned conveyor line is connected to the robot process, and a plurality of battery cell tracks are arranged horizontally above the above-mentioned conveyor line, and a code scanning mechanism, a first blocking mechanism, an electrical connection mechanism and a second blocking mechanism are arranged in sequence along the conveying direction; the above-mentioned electrical connection mechanism includes a second mounting seat and an OCV probe, the above-mentioned second mounting seat is movably arranged above the conveyor line, and the second mounting seat is transversely arranged with a plurality of groups of the above-mentioned OCV probes; the above-mentioned second blocking mechanism includes a third mounting seat and a blocking member, and the above-mentioned third mounting seat is movably provided with a plurality of blocking members;

[0009] The above-mentioned sorting station includes a cache conveyor line, an OK temporary storage conveyor line, an NG conveyor line, an OK conveyor line and a transfer conveyor line. The downstream end process of the above-mentioned conveyor line is connected to the upstream end of the cache conveyor line, and a number of third blocking mechanisms are provided above the cache conveyor line; the above-mentioned transfer conveyor line moves and switches between the downstream end of the cache conveyor line, the upstream end of the OK conveyor line, the upstream end of the NG conveyor line and the OK temporary storage conveyor line through the second electric slide module.

[0010] Furthermore, the above-mentioned incoming material station is used to place at least one carrier equipped with a plurality of battery cells; the above-mentioned manipulator includes a robotic arm and a clamping mechanism arranged on the robotic arm, the above-mentioned clamping mechanism includes a first fixed frame, a clamping unit, a first lifting frame, a bottom plate and a grasping unit, the above-mentioned first fixed frame is fixedly connected to the robotic arm, the first fixed frame is horizontally arranged with a plurality of clamping units for clamping battery cells, the first fixed frame is movably provided with the above-mentioned first lifting frame, the first lifting frame is swingably provided with the above-mentioned bottom plate toward the bottom of the plurality of clamped battery cells, and the first lifting frame is provided with a grasping unit for grasping the carrier.

[0011] Furthermore, the above-mentioned clamping claw unit includes a second fixed frame, a second lifting frame and a clamping plate. The above-mentioned second fixed frame is arranged on the first fixed frame, and the second lifting frame is arranged on the lower end of the second fixed frame so as to be movable up and down. The lower end of the above-mentioned second lifting frame is arranged on the two above-mentioned clamping plates so as to be openable and closable.

[0012] Furthermore, the second lifting frame includes an upper connecting plate, a nitrogen spring and a lower connecting plate. The upper connecting plate is movably arranged on the second fixed frame and is equipped with a second cylinder to move the upper connecting plate. The upper connecting plate is elastically floatingly arranged on the lower connecting plate through the nitrogen spring.

[0013] Furthermore, the clamping mechanism further includes a distance-changing module, and the first fixing frame is provided with a plurality of the clamping units arranged in a laterally adjustable manner through the distance-changing module.

[0014] Furthermore, the grabbing unit includes a plurality of suction cups, and the plurality of suction cups are downwardly disposed on the first lifting frame.

[0015] Furthermore, the above-mentioned incoming material station includes a pallet placement table, and the front end of the above-mentioned pallet placement table is provided with a fork entrance. The pallet placement table is provided with a first stop block on both sides of the fork entrance that can be opened and closed by a clamping cylinder, and the left, right and rear ends of the pallet placement table are provided with a second stop block that can be movably provided by a sixth cylinder.

[0016] Furthermore, a straightening mechanism is provided at the downstream end of the OK conveyor line; the straightening mechanism includes a mounting plate and a plurality of pneumatic clamps arranged on the mounting plate.

[0017] Furthermore, the battery cell OCV automatic detection equipment also includes a carrier temporary storage station and a battery cell temporary storage station connected to the robot process.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] This invention is an automatic OCV testing device for battery cells. Based on automated testing, it sorts the cells based on the test results and returns the cells that pass the test to a carrier. Compared to existing testing equipment on the market, this device eliminates the need for manual handling and sorting, enabling fully automated cell testing and sorting, significantly improving the efficiency of testing, sorting, and battery packaging. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention.

[0021] Figure 2 It is a top view of the present invention.

[0022] Figure 3 This is a structural diagram of the incoming material station in the present invention.

[0023] Figure 4 The structure diagram of the clamping mechanism in the present invention is as follows: Figure 1 .

[0024] Figure 5 The structure diagram of the clamping mechanism in the present invention is as follows: Figure 2 .

[0025] Figure 6 This is a front view of the clamping mechanism in the present invention.

[0026] Figure 7 This is a schematic structural diagram of the clamping unit in the present invention.

[0027] Figure 8 This is a schematic structural diagram of the detection station and the sorting station in the present invention.

[0028] Figure 9 This is a top view of the detection station and the sorting station in the present invention.

[0029] Figure 10 The diagram is a schematic diagram of the structure of the conveyor line, the code scanning mechanism and the first blocking mechanism in the present invention, wherein the arrow indicates the moving direction of the battery cell.

[0030] Figure 11 The diagram below is a schematic diagram of the structure of the code scanning mechanism in the present invention, wherein the arrows indicate the moving direction of the battery cell.

[0031] Figure 12 The diagram is a schematic diagram of the structure of the conveying line, the electrical connection mechanism and the second blocking mechanism in the present invention, wherein the arrow indicates the moving direction of the battery cell.

[0032] Figure 13 The figure is a schematic diagram of the structure of the electrical connection mechanism in the present invention, wherein the arrows indicate the moving direction of the battery cells.

[0033] Figure 14 FIG1 is a schematic diagram of the structure of the second blocking mechanism in the present invention, wherein the arrow indicates the moving direction of the battery cell.

[0034] Figure 15 The figure is a schematic diagram of the structure of the OK conveyor line in the present invention, wherein the arrows indicate the moving direction of the battery cells.

[0035] Figure 16 This is a structural diagram of the temporary storage station for battery cells in the present invention.

[0036] Figure 17 This is a structural diagram of the carrier temporary storage station in the present invention.

[0037] Figure 18 This is a schematic diagram of the structural disassembly of a material pile in the present invention. DETAILED DESCRIPTION

[0038] The specific embodiments of the present invention are described below with reference to the accompanying drawings. In order to fully understand the present invention, many details are described below, but for those skilled in the art, the present invention can be implemented without these details.

[0039] like Figure 1 、 Figure 2 and Figure 18 As shown, an automatic OCV testing device for battery cells includes an incoming material station 100, a robot arm 200, a testing station 300, a sorting station 400, a battery cell temporary storage station 500, a carrier temporary storage station 600, and a discharge station 700. Preferably, the incoming material station 100, the sorting station 400, the battery cell temporary storage station 500, the carrier temporary storage station 600, and the discharge station 700 are arranged around the robot arm 200.

[0040] Among them, the robot 200 is used to transfer the battery cell a from the incoming material station 100 to the inspection station 300, and to transfer the empty carrier b from the incoming material station 100 to the carrier temporary storage station 600 or the outgoing material station 700.

[0041] The inspection station 300 and the sorting station 400 are connected in process. The inspection station 300 is used to scan the battery cells and perform OCV testing; the sorting station 400 is used to sort the battery cells a with OK test results from the battery cells a with NG test results.

[0042] The robot 200 is also used to transfer the battery cell a with an OK test result from the OK conveyor line 65 of the sorting station 400 to the battery cell temporary storage station 500 or the discharge station 700, and to transfer the empty carrier b from the carrier temporary storage station 600 to the discharge station 700.

[0043] The specific structure of each station is described below.

[0044] (1) Stockpile

[0045] like Figure 18 As shown, the stack consists of carriers b and battery cells a stacked layer by layer on a pallet c. Specifically, pallet c serves as the bottom support, used with handling machinery such as forklifts. Stacked on pallet c are multiple layers of carriers b loaded with battery cells a. Carriers b include, but are not limited to, foam, with multiple battery cell slots b1 arranged at both the top and bottom ends.

[0046] (2) Incoming material station

[0047] like Figure 1 、 Figure 2 、 Figure 3 and Figure 18 As shown, the incoming material station 100 is used to place at least one carrier b containing a plurality of battery cells a, that is, the above-mentioned material pile.

[0048] In this embodiment, the incoming material station 100 includes a pallet platform 11. The pallet platform 11 is constructed, but not limited to, a support plate 111, side guide plates 112, and a rear stopper 113. A fork inlet 114 is located at the front of the pallet platform 11. First stops 12 are provided on both sides of the fork inlet 114, which are openable and retractable by clamping cylinders 121. Second stops 13 are provided on the left, right, and rear ends of the pallet platform 11, which are movably provided by sixth cylinders 131.

[0049] During use, the material pile is placed on the pallet placement platform 11 from the fork entrance 114 with the help of the forklift's fork, and then the first blocks 12 on both sides of the fork entrance 114 are closed by the clamping cylinder 121, and the front end of the pallet c is blocked by the first blocks 12. The second blocks 13 are pushed out by the sixth cylinder 131, and the left, right and rear ends of the pallet c are supported, so that the pallet c is positioned and clamped.

[0050] (3) Robot

[0051] like Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 18 As shown, the manipulator 200 includes a manipulator arm 201 and a gripper mechanism 202 provided on the manipulator arm 201. The manipulator arm 201 includes but is not limited to a multi-axis manipulator arm, which is a common technical means and will not be described in detail here.

[0052] The gripper mechanism 202 includes a first fixed frame 21, a first lifting frame 23, a gripping unit 24, a bottom plate 25, and gripper units 26. The flange 211 of the first fixed frame 21 is fixedly connected to the free end of the robotic arm 201. Six gripper units 26 are arranged horizontally on the first fixed frame 21 for gripping the battery cell a. Of course, the number of gripper units can be increased or decreased as needed and is not limited to six.

[0053] like Figure 5 、 Figure 6 and Figure 7 As shown, the gripper unit 26 includes a second fixed frame 261, a second lifting frame 262, and a clamping plate 264. The connecting base 2611 of the second fixed frame 261 is laterally adjustable on the first fixed frame 21 via the variable distance module 22. A second lifting frame 262 is mounted at the lower end of the second fixed frame 261, allowing for vertical movement. Two clamping plates 264 are mounted at the lower end of the second lifting frame 262, allowing for expansion and contraction.

[0054] Preferably, the second lifting frame 262 comprises a floating mechanism comprising an upper connecting plate 2621, a nitrogen spring 2622, and a lower connecting plate 2623. The upper connecting plate 2621 is vertically movable on the second fixed frame 261 via a slide rail module 2624 and is equipped with a second pneumatic cylinder 2620 for actuation. The upper connecting plate 2621 is elastically and buoyantly attached to the lower connecting plate 2623 via a nitrogen spring 2622. The lower connecting plate 2623 is equipped with two clamping plates 264 that can be opened and closed by a seventh pneumatic cylinder 2641.

[0055] Preferably, the upper connecting plate 2621 is equipped with a photoelectric sensor 263. This is used to control the second cylinder 2620 when the lower connecting plate 2623 approaches the upper connecting plate 2621 to a certain position, causing the second lifting frame 262 to stop its downward movement or move upward and reset. This prevents the clamping plate 264 from making hard contact with the battery cells c during downward movement, providing a buffering and protective effect. The photoelectric sensor 263 includes, but is not limited to, a slot-type photoelectric sensor. Accordingly, the lower connecting plate 2623 is fixed with a sensing plate 2631 for triggering the photoelectric sensor 263.

[0056] like Figure 5 and Figure 6 As shown, preferably, the first fixing frame 21 is arranged with six clamping claw units 26 that can be adjusted laterally (ie, adjusted left and right) through the distance variable module 22, so as to adjust the distance between the clamped battery cells as needed.

[0057] like Figure 4 、 Figure 5 、 Figure 6 and Figure 18 As shown, the first fixing frame 21 is provided with a first lifting frame 23 that can move up and down. The first lifting frame 23 is provided with a bottom plate 25 that can swing towards the bottom of the clamped battery cells a, and the first lifting frame 23 is provided with a grabbing unit 24 for grabbing the carrier b.

[0058] Specifically, the first lifting frame 23 is divided into two sections, one on the left and one on the right, respectively, which are mounted on the left and right ends of the first fixed frame 21 via linear bearings and linear guide shafts for vertical movement. Each section is equipped with a first cylinder 231 for actuation. Two bottom plates 25 are located on the front and rear sides of the first lifting frame 23. The two ends of the bottom plates 25 are mounted on the left and right sections of the first lifting frame 23 via connecting plates 252 for vertical rotation. Each section is equipped with a third cylinder 251 for actuation.

[0059] Specifically, the gripping unit 24 includes four suction cups, which are downwardly disposed at the four corners of the first lifting frame 23 to absorb the four corners of the carrier B through negative pressure. Of course, the number of suction cups can be increased or decreased as needed and is not limited to four.

[0060] During use, the second lifting frame 262 of the gripper unit 26 moves downward, while the first lifting frame 23 simultaneously moves downward, allowing the suction cup to contact the upper end of carrier b. After the two clamping plates 264 clamp the battery cell a, the second lifting frame 262 moves upward to reset, while the suction cup 24 restrains carrier b, thereby removing the battery cell a from carrier b. The distance between the six clamped battery cells a is adjusted using the variable distance module 22, and they are then transferred to the conveyor line 31 of the inspection station 300, with one battery cell a placed on each track. During the process of removing the battery cells a from carrier b and transferring them to the inspection station 300, the bottom plate 25 swings downward to hold the bottoms of the six battery cells a, preventing them from accidentally falling during transfer and providing auxiliary support and protection.

[0061] (4) Inspection station

[0062] like Figure 1 、 Figure 2 、 Figure 8 and Figure 9 As shown, the inspection station 300 includes a conveyor line 31 , a code scanning mechanism 41 , a first blocking mechanism 42 , an electrical connection mechanism 51 and a second blocking mechanism 52 .

[0063] like Figure 8 、 Figure 9 、 Figure 10 and Figure 18 , the upstream end of the conveyor line 31 is connected with the process of the manipulator 200, that is, the manipulator 200 can transfer the battery cell a to the upstream end of the conveyor line 31. Specifically, the conveyor line 31 includes a first belt conveyor 311, and a plurality of battery cell tracks 312 are arranged horizontally above the first belt conveyor 311. Preferably, the battery cell track 312 is composed of two guide rods 3121 extending along the conveying direction of the first belt conveyor 311. In addition, the guide rod 3121 is provided with a plurality of rollers 3122 arranged along the conveying direction for rolling contact with the surface of the battery cell a. The number of battery cell tracks 32 includes but is not limited to six.

[0064] like Figure 1 、 Figure 2 、 Figure 8 and Figure 9 As shown, the conveyor line 31 is provided with a code scanning mechanism 41, a first blocking mechanism 42, an electrical connection mechanism 51, and a second blocking mechanism 52 in sequence along its conveying direction. Preferably, the first belt conveyor 311 of the conveyor line 31 is formed by two belt conveyors connected end to end, one of which is provided with the code scanning mechanism 41 and the first blocking mechanism 42, and the other is provided with the electrical connection mechanism 51 and the second blocking mechanism 52.

[0065] like Figure 8 、 Figure 9 、 Figure 10 、 Figure 11and Figure 18 As shown, the code scanning mechanism 41 includes a first tripod 411, on which are arranged a plurality of code scanners 414. Preferably, the first tripod 411 is provided with a first mounting base 413 that can be moved left and right via a sliding module, and is equipped with a fourth cylinder 412 that actuates the first mounting base 413. Three code scanners 414 are arranged on the first mounting base 413 in a left and right arrangement.

[0066] During use, the first blocking mechanism 42 blocks the battery cell a on the conveyor line 31, causing it to stop beneath the barcode scanning mechanism 41. Three barcode scanners 414 then scan the barcodes (e.g., barcodes) of the battery cells a on three battery tracks 32 to obtain product information. The first mounting base 413 is then moved, allowing the three barcode scanners 414 to scan the barcodes of the battery cells a on the remaining three battery tracks 32. This facilitates correlation of product information with OCV test results and other information. After scanning, the barcode scanning mechanism 41 and the first blocking mechanism 42 are reset, allowing the battery cells a to pass through. The specific structure of the first blocking mechanism 42 is identical to that of the second blocking mechanism; please refer to the detailed description of the second blocking mechanism below for details.

[0067] like Figure 8 、 Figure 9 、 Figure 12 、 Figure 13 and Figure 18 The electrical connection mechanism 51 includes a second mounting seat 513 and a plurality of OCV probes 514. The second mounting seat 513 is movably arranged above the conveyor line 31, and the second mounting seat 513 is provided with six rows of OCV probes 514, with two OCV probes 514 in each row, for a total of sixteen OCV probes 514. The two OCV probes 514 in each row are used to electrically connect the positive and negative poles of the same battery cell a, and are electrically connected to an existing OCV tester (not shown in the figure). More specifically, the second tripod 511 is movably provided with a second mounting seat 513 through a first electric slide module 512, and is located above the conveyor line 31. The second mounting seat 513 is arranged with sixteen seat bodies 5131, and each seat body 5131 is fixedly mounted with an OCV probe 514.

[0068] like Figure 8 、 Figure 9 、 Figure 12 、 Figure 14 and Figure 18, the second blocking mechanism 52 includes a third mounting seat 522 and a blocking member 524. The third mounting seat 522 is provided with a plurality of blocking members 524 that can be moved up and down, and is equipped with a fifth cylinder 523 for making it move. Specifically, the third bracket 521 is provided with a third mounting seat 522 that can be moved up and down through a sliding module, and the third mounting seat 522 is arranged with three blocking members 524, and the three blocking members 524 are located above the conveyor line 31, and each blocking member 42 spans two battery cell tracks 32 of the conveyor line 31, that is, three blocking members 524 span six battery cell tracks 32 of the conveyor line 31. Preferably, the blocking member 524 is a roller, which is rotatably provided on the third mounting seat 522 to prevent the battery cell a from being scratched when moving up and down.

[0069] During use, the blocking member 524 is moved downward to block the battery cell a on the conveyor line 31, so that the battery cell a stops below the electrical connection mechanism 51; then, the OCV probe 514 is moved downward to electrically connect the battery cell a, and the OCV test is performed by the existing OCV tester electrically connected by the OCV probe 514; after the test is completed, the OCV probe 514 and the blocking member 524 are moved upward and reset to release the battery cell a.

[0070] (5) Sorting station

[0071] like Figure 1 、 Figure 8 、 Figure 9 and Figure 18 The sorting station 400 includes a buffer conveyor line 61, a transfer conveyor line 62, an NG conveyor line 63, an OK temporary storage conveyor line 64, and an OK conveyor line 65. Furthermore, the buffer conveyor line 61, the transfer conveyor line 62, the NG conveyor line 63, the OK temporary storage conveyor line 64, and the OK conveyor line 65 all include belt conveyors and cell tracks disposed on the belt conveyors. The specific structure is the same as that of the conveyor line 31 and will not be further described here.

[0072] The upstream end of the buffer conveyor line 61 is connected to the downstream end of the conveyor line 31, and a number of third blocking mechanisms 611 are installed above the buffer conveyor line 61. The specific structure of the third blocking mechanism 611 is similar to that of the second blocking mechanism 52, with the only difference being that the three blocking members 524 of the second blocking mechanism 52 are controlled by a fifth cylinder 523 and move up and down together. The three blocking members of the third blocking mechanism 611 are independent of each other and are individually controlled by three cylinders. Specifically, the footrest of the third blocking mechanism 611 is equipped with three mounting brackets that can be moved up and down by a sliding module. Each mounting bracket is equipped with a blocking member, and each mounting bracket is equipped with a cylinder.

[0073] In conjunction with this, the transfer conveyor line 62 has two belt conveyors arranged side by side, and each belt conveyor has a battery cell track.

[0074] like Figure 1 、 Figure 8 、 Figure 9 and Figure 18 The transfer conveyor line 62 can be moved left and right through the second electric slide module 621, so that it can move and switch between the downstream end of the cache conveyor line 61, the upstream end of the OK conveyor line 65, the upstream end of the NG conveyor line 63 and the OK temporary storage conveyor line 64.

[0075] When in use, the upper computer (or control system) controls the operation of the sorting station 400, thereby sorting the battery cells according to the OCV test results (divided into NG and OK). The specific operation is as follows:

[0076] The battery cells a entering the cache conveyor line 61 from the conveyor line 31 are blocked by the three blocking members of the third blocking mechanism 611; one blocking member is moved up each time, and two battery cells a are transferred to the transfer conveyor line 62; the transfer conveyor line 62 completes the transfer and sorting of the battery cells a according to the following transfer method.

[0077] Transfer method: If the test results of both battery cells a are NG, they are transferred to the NG conveyor line 63; if the test results of both battery cells a are OK, they are transferred to the OK conveyor line 65; if the test result of one battery cell a is NG and the other is OK, the battery cell a with NG test result is transferred to the NG conveyor line 63, and the battery cell a with OK test result is transferred to the OK temporary conveyor line 64. After the OK temporary conveyor line 64 stores two battery cells a, they are transferred together to the OK conveyor line 65.

[0078] like Figure 1 、 Figure 8 、 Figure 9 and Figure 15 As shown, the downstream end of the OK conveyor line 65 is provided with a straightening mechanism 651 for straightening the battery cells to facilitate the robot to grasp the battery cells. The straightening mechanism 651 includes a mounting plate 6511 and six pneumatic clamps 6512 arranged on the mounting plate 6511. Each pneumatic clamp 6512 corresponds to a track of the OK conveyor line 65. Of course, the number of pneumatic clamps 6512 can also be increased or decreased as needed and is not limited to six. In this embodiment, there are six pneumatic clamps 6512 because the robot has six clamping units and the OK conveyor line 65 correspondingly has six tracks. Each track requires one pneumatic clamp 6512, so there are a total of six pneumatic clamps 6512.

[0079] (6) Temporary storage of battery cells, temporary storage of carriers and discharge stations

[0080] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 16 、 Figure 17 and Figure 18 As shown, the cell temporary storage station 500 includes a bracket 5001, and the bracket 5001 is fixed with five fixtures 5002 for placing the cell a. Of course, the number of the fixtures 5002 can also be increased or decreased as needed.

[0081] The carrier temporary storage station 600 includes a placement rack 6001 , and positioning pieces 6002 are fixed around the placement rack 6001 to facilitate positioning and placement of the carrier b.

[0082] The specific structure of the discharge station 700 is the same as that of the incoming station 100 (eg Figure 3 shown), which will not be described here in detail.

[0083] like Figure 1-16 As shown in the figure, the battery cell OCV automatic detection equipment is controlled by the host computer (or control system) to control the operation of each station. The specific operation steps are as follows:

[0084] (1) Use a forklift to move the pile of materials to be inspected (such as Figure 16 As shown in FIG. 1 , the raw material is transferred to the incoming material station 100 and positioned and fixed by the incoming material station 100.

[0085] (2) The robot 200 transfers the battery cell a from the incoming material station 100 to the upstream end of the conveyor line 31 of the inspection station 300; after the carrier b is emptied, if the current carrier b of the discharge station 700 is full of battery cells, the robot 200 transfers the empty carrier b from the incoming material station 100 to the discharge station 700; if the current carrier b of the discharge station 700 is not full of battery cells, the robot 200 transfers the empty carrier b from the incoming material station 100 to the carrier temporary storage station 600, and then transfers it from the carrier temporary storage station 600 to the discharge station 700 when it is needed.

[0086] (3) The conveyor line 31 conveys the battery cell a; the first blocking mechanism 42 blocks the battery cell a below the barcode scanner 414. The barcode scanner 414 scans the battery cell a and obtains the product information. Then, the first blocking mechanism 42 releases the battery cell a.

[0087] (4) The conveyor line 31 continues to convey the scanned battery cell a; the second blocking mechanism 52 blocks the scanned battery cell a below the electrical connection mechanism 51; the OCV probe 514 of the electrical connection mechanism 51 moves downward to perform OCV testing on the battery cell a. The OCV test results are divided into NG and OK.

[0088] (5) The conveyor line 31 continues to convey the battery cell a after the OCV test; the battery cell a then enters the buffer conveyor line 61 of the sorting station 400; the battery cell a is blocked at the end of the buffer conveyor line 61 by the third blocking mechanism 611; the third blocking mechanism 611 lifts one of the blocking members, and the buffer conveyor line 61 conveys the two released battery cells a to the transfer conveyor line 62; the transfer conveyor line 62 sorts the battery cells a with NG test results and those with OK test results according to the above transfer method.

[0089] (6) The robot 200 transfers the cell a from the OK conveyor line 65 to the carrier b of the discharge station 700. When the carrier b is full, the robot 200 grabs the empty carrier b and puts it into the discharge station 700. This process is repeated to form a material pile in the discharge station 700 (such as Figure 16 In addition, if the number of available cell slots on carrier b is less than the number of cells that can be gripped by robot 200, robot 200 first places the excess cells a in the jig on the temporary cell storage station 500. When the number of cells on the temporary cell storage station 500 matches the number of available cell slots on carrier b, robot 200 transfers the cells a to carrier b on the discharge station 700.

[0090] (7) The material pile can be taken out from the discharge station 700 by a forklift.

[0091] The above is only a specific implementation of the present invention, but the design concept of the present invention is not limited to this. Any non-substantial changes to the present invention using this concept shall be deemed as an infringement of the protection scope of the present invention.

Claims

1. A battery cell OCV automatic detection device, characterized by: It includes an incoming material station, an inspection station, a sorting station, a battery cell temporary storage station, a carrier temporary storage station and an outgoing material station arranged around the robot; The incoming material station is used to place at least one carrier containing a plurality of battery cells; The manipulator is used to transfer the battery cells from the incoming material station to the inspection station, to transfer the empty carriers from the incoming material station to the carrier temporary storage station or the discharge station, to transfer the battery cells with OK test results from the OK conveyor line of the sorting station to the battery cell temporary storage station or the discharge station, and to transfer the empty carriers from the carrier temporary storage station to the discharge station; The manipulator includes a manipulator arm and a gripper mechanism provided on the manipulator arm, the gripper mechanism including a first fixing frame, a gripper unit, a first lifting frame, a bottom plate and a grabbing unit, the first fixing frame being fixedly connected to the manipulator arm, the first fixing frame being laterally arranged with a plurality of gripper units for gripping battery cells, the first fixing frame being movably provided with the first lifting frame, the first lifting frame being swingably provided with the bottom plate towards the bottoms of the plurality of gripped battery cells, and the first lifting frame being provided with a grabbing unit for gripping a carrier; The inspection station includes a conveyor line, an electrical connection mechanism and a second blocking mechanism; the upstream end of the conveyor line is connected to the robot process, and a plurality of battery cell tracks are arranged horizontally above the conveyor line, and a code scanning mechanism, a first blocking mechanism, an electrical connection mechanism and a second blocking mechanism are sequentially arranged along the conveying direction; the electrical connection mechanism includes a second mounting seat and an OCV probe, the second mounting seat is movably arranged above the conveyor line, and a plurality of groups of the OCV probes are arranged horizontally on the second mounting seat; the second blocking mechanism includes a third mounting seat and a blocking member, and the third mounting seat is movably provided with a plurality of blocking members; The sorting station includes a cache conveyor line, an OK temporary storage conveyor line, an NG conveyor line, an OK conveyor line and a transfer conveyor line. The downstream end process of the conveyor line is connected to the upstream end of the cache conveyor line, and a number of third blocking mechanisms are provided above the cache conveyor line; the transfer conveyor line moves and switches between the downstream end of the cache conveyor line, the upstream end of the OK conveyor line, the upstream end of the NG conveyor line and the OK temporary storage conveyor line through the second electric slide module; if the inspection results of the two battery cells are both NG, they are transferred to the NG conveyor line; if the inspection results of the two battery cells are both OK, they are transferred to the OK conveyor line; if the inspection result of one battery cell is NG and the other is OK, the battery cell with the NG inspection result is transferred to the NG conveyor line, and the battery cell with the OK inspection result is transferred to the OK temporary storage conveyor line. After the OK temporary storage conveyor line stores two battery cells, they are transferred to the OK conveyor line together; the downstream end of the OK conveyor line is provided with a slapping mechanism for slapping the battery cells to facilitate the robot to grab the battery cells.

2. The battery cell OCV automatic detection device according to claim 1, characterized in that: The clamping claw unit includes a second fixed frame, a second lifting frame and a clamping plate. The second fixed frame is arranged on the first fixed frame. The lower end of the second fixed frame is provided with the second lifting frame so as to be movable up and down. The lower end of the second lifting frame is provided with two clamping plates so as to be openable and closable.

3. The battery cell OCV automatic detection device according to claim 2, characterized in that: The second lifting frame includes an upper connecting plate, a nitrogen spring and a lower connecting plate. The upper connecting plate is movably arranged on the second fixed frame and is equipped with a second cylinder to move the upper connecting plate. The upper connecting plate is elastically floatingly arranged on the lower connecting plate through the nitrogen spring.

4. The battery cell OCV automatic detection device according to claim 1, characterized in that: The clamping mechanism further includes a distance-changing module, and the first fixing frame is provided with a plurality of the clamping units arranged in a transversely adjustable manner through the distance-changing module.

5. The battery cell OCV automatic detection device according to claim 1, characterized in that: The grabbing unit includes a plurality of suction cups, and the plurality of suction cups are downwardly arranged on the first lifting frame.

6. The battery cell OCV automatic detection device according to claim 1, characterized in that: The incoming material station includes a pallet placement table, a fork entrance is provided at the front end of the pallet placement table, and the pallet placement table is provided with a first stopper on both sides of the fork entrance that can be opened and closed by a clamping cylinder, and a second stopper is provided on the left, right and rear end of the pallet placement table that can be movably provided by a sixth cylinder.

7. The battery cell OCV automatic detection device according to claim 1, characterized in that: The alignment mechanism includes a mounting plate and a plurality of pneumatic clamps arranged on the mounting plate.

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