Laminated cell x-ray inspection machine

Abstract

The application provides a laminated battery cell X-ray detection machine, which comprises a machine table, two material flow channels arranged in a rear-to-front direction, and a feeding robot, a variable distance device, a turnover transfer device, a linear transfer device, a stacking robot, a loading and unloading device at the feeding end, a detection transfer device, an X-ray detection device, a loading and unloading device at the discharging end, a detection discharging robot, an NG rejection device and a discharging robot arranged in sequence on the machine table and arranged according to the two material flow channels. The laminated battery cell feeding, turnover, transfer, detection and qualification, NG rejection and discharging functions are integrated, the layout between the devices is compact, the detection efficiency is high, the two material flow channels provide two detection feeding and discharging stations, one detection station is matched with one X-ray detection device, and the utilization rate of the X-ray detection device is high.

Description

Technical Field

[0001] This invention belongs to the field of X-ray inspection equipment for battery cells, and particularly relates to an X-ray inspection machine for stacked battery cells. Background Technology

[0002] Please see Figure 1 After the stacked cells 10 of the square aluminum-cased battery are hot-pressed, the cathode and anode plates must be aligned, and the cathode tabs 101 and anode tabs 102 must be aligned. Generally, the deviation between adjacent cathode plate edges, adjacent anode plate edges, adjacent cathode tab 101 edges, and adjacent anode tab 102 edges must be ≤0.1mm; the deviation of the distance D between the cathode plate edge and the adjacent anode plate edge must be ≤0.1mm; the deviation between all cathode plate edges, all anode plate edges, all cathode tab 101 edges, and all anode tab 102 edges must be ≤0.2mm; the deviation of the distance D between all cathode plate edges and all anode plate edges must be ≤0.2mm; the measurement accuracy must be ≤0.025mm, and the repeatability accuracy must be ≤0.06mm. The deviation of the deviation and the distance D are generally detected using X-rays.

[0003] The principle of X-ray inspection for the discrepancy and distance D of the cathode and anode plates in a laminated battery cell is as follows: Using a high-energy X-ray imaging system, X-rays are incident at a certain angle onto the edges and corners of the laminated battery cell and imaged on a detector (TDI). Then, software algorithms calculate the number of layers of the cathode and anode plates, the discrepancy between the edges of all cathode and anode plates, and the distance D between the edges of all cathode and anode plates. These are collectively referred to as the electrode misalignment dimension value, and the value is compared with a standard value to determine whether the laminated battery cell meets the required quality standards.

[0004] Therefore, it is necessary to develop an X-ray inspection machine for stacked battery cells. Summary of the Invention

[0005] The purpose of this invention is to provide an X-ray inspection machine for stacked battery cells, which can perform loading, flipping, transfer, inspection and qualification judgment, rejection of NG and unloading operations on multiple stacked battery cells with high work efficiency.

[0006] This invention is implemented as follows: an X-ray inspection machine for stacked battery cells, comprising...

[0007] The machine is designed to have two symmetrically arranged logistics channels running from back to front, with the center line from back to front as the axis of symmetry.

[0008] The following components are sequentially fixed on the machine platform and arranged according to the two logistics channels on the left and right: a loading robot, a pitch-changing device, a flipping and transferring device, a linear transferring device, a palletizing robot, a loading and unloading device at the loading end, a detection and transferring device, an X-ray detection device, a loading and unloading device at the unloading end, a detection and unloading robot, an NG rejection device, and an unloading robot.

[0009] The loading robot is used to grab stacked battery cells from the external loading conveyor and transfer them to the pitch-changing device;

[0010] The pitch-changing device is used to receive multiple stacked battery cells grabbed by the feeding robot and adjust the spacing between the multiple stacked battery cells.

[0011] The flipping and transfer device is used to extend into the pitch device to clamp multiple stacked cells at once, and flip the stacked cells at a preset angle before placing them into the linear transfer device.

[0012] The linear transfer device is used to transfer multiple stacked battery cells to a position close to the palletizing robot while simultaneously scanning them;

[0013] The palletizing robot is used to grab multiple stacked battery cells and transfer them to the loading and unloading device at the feeding end;

[0014] The loading and unloading device at the feeding end is used to transport multiple stacked cells to the testing and transfer device, and the loading and unloading device at the unloading end is used to remove the multiple stacked cells after testing from the testing and transfer device and transfer them to a position close to the testing and unloading robot.

[0015] The inspection and transfer device is used to transfer the stacked battery cells from the inspection and loading / unloading station of the X-ray inspection device to the inspection station of the X-ray inspection device, and to transfer the inspected stacked battery cells back to the inspection and loading / unloading station of the X-ray inspection device.

[0016] The X-ray detection device is used to detect the number of cathode and anode layers in each of the multiple laminated cells, as well as the electrode misalignment size of the cathode and anode layers, and compares the values ​​with standard values ​​to determine whether the laminated cell quality is qualified.

[0017] The inspection and unloading robot is used to pick up the inspected stacked cells from the loading and unloading device at the unloading end and transfer them to the NG rejection device;

[0018] The NG rejection device is used to select and transfer NG stacked cells to its NG unloading conveyor belt, and to transfer OK stacked cells to a position close to the unloading robot;

[0019] The unloading robot is used to grab OK stacked battery cells and transfer them to the external unloading conveyor belt.

[0020] The beneficial effects of this invention are as follows:

[0021] The X-ray inspection machine for laminated battery cells of the present invention is provided with two material flow channels from back to front, and a loading robot, a pitch-changing device, a flipping and transfer device, a linear transfer device, a palletizing robot, a loading and unloading device at the loading end, an inspection and transfer device, an X-ray inspection device, a loading and unloading device at the unloading end, an inspection and unloading robot, an NG rejection device, and an unloading robot are sequentially fixed on the machine base according to the two material flow channels. The present invention integrates the functions of loading, flipping, transferring, inspection and acceptance judgment, NG rejection, and unloading of laminated battery cells. The layout of each device is compact, the inspection efficiency is high, and the two material flow channels provide two inspection and loading / unloading stations with one inspection station for each X-ray inspection device, resulting in high utilization of the X-ray inspection device. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a laminated battery cell;

[0023] Figure 2 This is a structural diagram of an X-ray inspection machine for stacked battery cells;

[0024] Figure 3 This is a process flow diagram of an X-ray inspection machine for laminated battery cells;

[0025] Figure 4 This is a structural diagram of the laminated cell pitch converter before pitch conversion;

[0026] Figure 5 This is a structural diagram of the laminated cell pitch-changing device after pitch transformation;

[0027] Figure 6 This is another perspective view of the structure after the pitch is changed by the laminated cell pitch-changing device;

[0028] Figure 7 yes Figure 6 The diagram shows the structure of the fixed-distance slide and the stacked cell carrier in the stacked cell pitch-changing device.

[0029] Figure 8 Structural diagram of the stacked battery cell flipping and transfer device;

[0030] Figure 9 yes Figure 8 The diagram shows the structure of the rotary clamping unit in the stacked cell flipping and transfer device.

[0031] Figure 10 This is a structural diagram of a linear transfer device for laminated battery cells;

[0032] Figure 11 yes Figure 10 The exploded view of the linear transfer device for laminated cells is shown.

[0033] Figure 12 yes Figure 10 The diagram shows the structure of the laminated cell carrier.

[0034] Figure 13 yes Figure 10 A structural diagram of the stacked cell carrier from another perspective;

[0035] Figure 14 yes Figure 12 The diagram shows the structure of the cell-side movable clamping assembly in the stacked cell carrier.

[0036] Figure 15 This is a structural diagram of one state of the stacked battery cell detection and transfer device;

[0037] Figure 16 yes Figure 15 The diagram shows a structural diagram of another state of the stacked cell detection and transfer device.

[0038] Figure 17 yes Figure 15 The diagram shows a structural view of the stacked battery cell testing rack at one angle in the stacked battery cell testing and transfer device.

[0039] Figure 18 yes Figure 15 The diagram shows a structural view of the stacked battery cell testing rack in the stacked battery cell testing and transfer device from another angle.

[0040] Figure 19 yes Figure 18 An enlarged view of area A in the stacked battery cell testing rack shown;

[0041] Figure 20 yes Figure 15 Structural diagram of the stacked battery cell testing rack section in the stacked battery cell testing and transfer device;

[0042] Figure 21 This is a structural diagram of an X-ray inspection device for laminated battery cells;

[0043] Figure 22 yes Figure 21 The diagram shows a schematic of an X-ray inspection device for inspecting stacked battery cells.

[0044] Figure 23 yes Figure 21 The diagram shows the structure of the X-ray emission head drive assembly and the X-ray emission head in the X-ray inspection device for stacked battery cells.

[0045] Figure 24 yes Figure 21 The diagram shows the structure of the TDI receiving mechanism in the X-ray inspection device for laminated battery cells.

[0046] Figure 25This is a structural diagram of the NG rejection device for laminated battery cells during the loading process;

[0047] Figure 26 yes Figure 25 The diagram shows the structure of the NG rejection device for laminated cells during NG rejection.

[0048] Figure 27 yes Figure 25 The diagram shows the structure of the unloading and transfer mechanism in the NG rejection device for laminated cells.

[0049] Figure 28 yes Figure 27 The diagram shows the structure of the stacked battery cell carrier in the feeding and transfer mechanism during the feeding process.

[0050] Figure 29 yes Figure 27 The diagram shows the structure of the stacked battery cell carrier in the feeding and transfer mechanism when it is clamped.

[0051] Figure 30 yes Figure 25 The diagram shows the structure of the NG handling mechanism in the NG rejection device for laminated cells.

[0052] Figure 31 yes Figure 25 The diagram shows the structure of the flipping mechanism in the NG rejection device for laminated cells.

[0053] Explanation of reference numerals in the attached diagram:

[0054] 10. Battery cell; 101. Cathode tab; 102. Anode tab;

[0055] 100. Machine tool;

[0056] 200. Feeding robot;

[0057] 300. Pitch-changing device; 310. Pitch-changing bracket; 320. Translation mechanism; 321. Translation drive component; 322. Carriage; 323. Slide block; 324. Translation positioning assembly; 330. Fixed-distance mechanism; 331. Fixed-distance unit; 3311. Fixed-distance slide block; 3312. Pull rod; 340. First stacked cell carrier; 341. Cell platform; 342. First clamping drive component; 343. Gripper; 344. First material sensor;

[0058] 400. Tilting and transferring device; 410. Advancing and retracting mechanism; 411. Advancing and retracting linear module; 412. Advancing and retracting carriage; 420. Lifting mechanism; 421. Lifting linear module; 422. Lifting carriage; 430. Rotary clamping mechanism; 431. Rotary clamping bracket; 432. Rotary clamping unit; 4321. Rotary drive component; 4322. Second clamping drive component; 4323. Clamp assembly; 43231. Clamp carriage; 43232. Clamp;

[0059] 500. Linear transfer device; 510. Transfer mechanism; 511. Transfer base; 512. Linear transfer module; 513. Transfer slide block; 514. Transfer slide plate; 515. Transfer limit switch; 516. Transfer limit switch induction plate; 520. Second stacked cell carrier; 521. Transfer carrier bracket; 5211. Transfer carrier bracket support column; 5212. Transfer carrier bracket top plate; 52121. Bottom surface of transfer carrier bracket top plate; 52122. Top surface of transfer carrier bracket top plate; 522. Cell carrier frame; 5221. Cell carrier frame support column; 5222. Cell carrier frame top plate; 5223. First cell carrier plate; 523. Cell top fixing clamp; 52 4. Cell bottom movable clamping assembly; 5241. Cell bottom movable clamp drive component; 5242. Cell bottom movable clamp slide block; 5243. Cell bottom movable clamp slider; 5244. Cell bottom movable clamp slide plate; 5245. Roller; 5246. Cell bottom movable clamp; 5247. Cell bottom movable clamp proximity switch; 525. Cell side movable clamping assembly; 5251. Cell side movable clamp slide plate; 52511. Roller concave side; 52512. Roller convex side; 5252. Cell side movable clamp slide block; 5253. Cell side movable clamp; 5254. Spring mounting component; 5255. Spring; 526. Barcode scanner; 527. Second material sensor;

[0060] 600. Palletizing robot;

[0061] 700. Loading and unloading equipment;

[0062] 800. Inspection and transfer device; 810. Double-moving linear module; 811. Double-moving drive unit; 812. Mover; 820. Stacked cell inspection rack; 821. Frame; 822. Fixed shelf; 823. Movable shelf; 8231. Movable shelf slide plate; 8232. Movable shelf; 824. Movable shelf lifting drive unit; 825. Movable shelf lifting transmission system; 8251. Drive unit output transmission system; 8252. Drive shaft; 8253. Vertical lifting transmission unit; 82531. Steering gear; 825 32. Lifting screw seat; 82533. Lifting screw nut; 82534. Lifting screw; 826. Movable shelf lifting slide block; 827. Stacked cell holding assembly; 8271. Second cell carrier plate; 8272. Holding drive component; 8273. Holding guide assembly; 8274. Holding palm; 828. Pole folding lug assembly; 8281. Pole folding lug drive component; 8282. Pole folding lug guide sleeve; 8283. Pole folding lug guide post; 8284. Pole folding lug transmission rod; 8285. Pole folding palm; 829. Detection and transfer limit switch sensing element;

[0063] 900. X-ray detection device; 910. X-ray emitting mechanism; 911. X-ray emitting head drive assembly; 9111. X-ray emitting head support; 9112. X-ray emitting head linear module; 9113. X-ray emitting head carriage; 9114. X-ray emitting head limit switch assembly; 9115. X-ray emitting head limit switch sensor; 912. X-ray emitting head; 913. X-ray emitter; 920. TDI receiving mechanism; 921. TDI drive assembly; 9211. TDI Y-axis linear module; 9212. TDI X-axis linear module; 9213. TDI slide plate; 9214. TDI turntable; 9215. TDI bracket; 9216. TDI manual pan / tilt head; 922. TDI;

[0064] 1000. Inspection and unloading robot;

[0065] 1100. NG rejection device; 1110. Unloading and transfer mechanism; 1111. Unloading and transfer linear module; 1112. Third-layer battery cell carrier; 11121. Carrier frame; 111211. Carrier base frame; 111212. Carrier base plate; 111213. Carrier side plate; 111214. Carrier side plate sliding sleeve; 11122. Clamp opening and closing drive component; 11123. Clamp opening and closing transmission rod; 11124. Clamp opening and closing transmission block; 11125. Side clamp; 111251. Third-layer battery cell carrier plate; 111252. Fixed clamp; 111253. Movable clamp; 111254. Layered battery cell clamp; 11126. Third material sensor; 11127. Battery cell Position detection sensor; 1113, Unloading and transfer limit switch; 1114, Unloading and transfer limit switch sensing element; 1120, NG handling mechanism; 1121, NG handling bracket; 1122, NG handling translation linear module; 1123, NG handling lifting linear module; 1124, NG handling robot; 1130, Tilting mechanism; 1131, Tilting forward and backward drive component; 1132, Tilting forward and backward slide block; 1133, Tilting forward and backward slide frame; 1134, Tilting lifting drive component; 1135, Tilting lifting slide block; 1136, Tilting lifting slide plate; 1137, Tilting drive component; 1138, Third clamping drive component; 1139, Tilting gripper; 1140, NG unloading pull belt;

[0066] 1200. Material unloading robot. Detailed Implementation

[0067] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0068] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0069] Please refer to Figure 2 This embodiment illustrates an X-ray inspection machine for stacked battery cells, including...

[0070] The machine 100 is used to set up two logistics channels in the direction of rear to front symmetrically with the center line from rear to front as the axis of symmetry.

[0071] The following components are sequentially fixed on the machine base 100 and arranged according to the left and right logistics channels: a loading robot 200, a pitch-changing device 300, a flipping and transferring device 400, a linear transfer device 500, a palletizing robot 600, a loading and unloading device 700 at the loading end, an inspection and transfer device 800, an X-ray inspection device 900, a loading and unloading device 700 at the unloading end, an inspection and unloading robot 1000, an NG rejection device 1100, and an unloading robot 1200.

[0072] The loading robot 200 is used to pick up stacked battery cells from the external loading conveyor belt and transfer them to the pitch converter 300;

[0073] The pitch-changing device 300 is used to receive multiple stacked battery cells 10 grabbed by the feeding robot 200 and adjust the spacing between the multiple stacked battery cells 10.

[0074] The flipping and transfer device 400 is used to extend into the pitch device 300 to clamp multiple stacked cells 10 at one time, and flip the stacked cells 10 at a preset angle before placing them into the linear transfer device 500.

[0075] The linear transfer device 500 is used to transfer multiple stacked battery cells 10 to a position close to the palletizing robot 600 while simultaneously scanning them;

[0076] The palletizing robot 600 is used to grab multiple stacked battery cells 10 and transfer them to the loading end of the loading device 700;

[0077] The loading and unloading device 700 at the loading end is used to transport multiple stacked cells 10 to the inspection and transfer device 800, and the loading and unloading device 700 at the unloading end is used to remove the multiple stacked cells 10 after inspection from the inspection and transfer device 800 and transfer them to a position close to the inspection and unloading robot 1000.

[0078] The inspection transfer device 800 is used to transfer the stacked battery cells from the inspection loading and unloading station of the X-ray inspection device 900 to the inspection station of the X-ray inspection device 900, and to transfer the inspected stacked battery cells back to the inspection loading and unloading station of the X-ray inspection device 900.

[0079] The X-ray inspection device 900 is used to detect the number of cathode and anode layers in each of the multiple laminated cells, as well as the misalignment size of the cathode and anode layers, and compares the results with standard values ​​to determine whether the laminated cell quality is up to standard.

[0080] The inspection and unloading robot 1000 is used to pick up the inspected stacked cells from the loading and unloading device 700 at the unloading end and transfer them to the NG rejection device 1100.

[0081] The NG rejection device 1100 is used to select and transfer NG stacked cells 10 to its NG unloading conveyor 1140, and to transfer OK stacked cells 10 to a position close to the unloading robot 1200;

[0082] The unloading robot 1200 is used to grab OK stacked battery cells 10 and transfer them to the external unloading conveyor belt.

[0083] Please refer to Figure 3 , Figure 3 The process flow of the X-ray inspection machine for stacked battery cells in this embodiment is shown. It can be seen that the X-ray inspection machine for stacked battery cells in this embodiment integrates the functions of loading, flipping, transferring, inspection and acceptance judgment, NG rejection, and unloading of stacked battery cells. The layout of each device is compact, resulting in high inspection efficiency. Two logistics channels provide two inspection and loading / unloading stations, each equipped with one X-ray inspection device 900, ensuring high utilization of the X-ray inspection device 900.

[0084] Specifically, there is one loading robot 200; there are four pitch-changing devices 300 and four flipping and transferring devices 400. The loading robot 200 has two pitch-changing devices 300 on the left and right sides at the front and rear ends, and one flipping and transferring device 400 on each side longitudinally connecting to each pitch-changing device 300. The two pitch-changing devices 300 on the left and right sides and the corresponding two flipping and transferring devices 400 are located in the left and right logistics channels respectively.

[0085] There are two linear transfer devices 500 and two palletizing robots 600, which are located on the left and right sides of the logistics channel in the direction of logistics from back to front. The linear transfer device 500 is parallel to the two front and rear pitch-changing devices 300 and is also spanned by the two front and rear flipping transfer devices 400. The palletizing robot 600 is located outside the corresponding linear transfer device 500.

[0086] There is one inspection and transfer device 800, which spans and crosses two logistics channels. It has a central inspection station and two inspection and unloading stations at both ends. There are four loading and unloading devices 700, which are set at the loading end and unloading end of the inspection and transfer device 800 along the two logistics channels. The loading and unloading device 700 at the loading end docks with the palletizing robot 600 to receive the stacked battery cells transferred by the palletizing robot 600 and then transfer them to the inspection and transfer device 800.

[0087] There is one X-ray inspection device 900, located at the inspection station of the inspection transfer device 800.

[0088] There is one inspection and unloading robot 1000, which connects to two unloading end loading and unloading devices 700. The two unloading end loading and unloading devices 700 are used to grab the inspected stacked cells on the X-ray inspection device 900 and then transfer them to the inspection and unloading robot 1000.

[0089] There is one NG rejection device 1100 and one unloading robot 1200. The NG rejection device 1100 docks with the inspection and unloading robot 1000 to receive the inspected stacked cells 10 transferred by the inspection and unloading robot 1000 and select the NG stacked cells 10 to transfer to its NG unloading conveyor belt 1140, and to transfer the OK stacked cells 10 to a position close to the unloading robot 1200. The unloading robot 1200 is used to grab the OK stacked cells 10 and transfer them to the external unloading conveyor belt.

[0090] Please refer to Figures 4 to 6 The pitch-changing device 300 includes a pitch-changing bracket 310, a translation mechanism 320, a pitch-fixing mechanism 330, and a plurality of first stacked cell carriers 340.

[0091] The translation mechanism 320 includes a translation drive 321, a carriage 322, and a sliding block 323. The slide rails of the translation drive 321 and the sliding block 323 are both fixed on the variable pitch bracket 310. The carriage 322 is fixed on the output end of the translation drive 321. The translation drive 321 can drive the carriage 322 to move linearly in the horizontal direction.

[0092] The distance fixing mechanism 330 includes four distance fixing units 331, which are fixed on different sliders of the slide block 323. The four distance fixing units 331 are arranged at intervals along the length of the slide rail of the slide block 323. The distance fixing unit 331 at the first end is fixed on the carriage 322. The translation drive 321 can drive the four distance fixing units 331 to move, so that the four distance fixing units 331 can change distance and fix distance.

[0093] The first stacked cell carrier 340 is fixed on the spacing unit 331 and is capable of loading the stacked cells 10.

[0094] Specifically, the distance-fixing unit 331 includes a distance-fixing slide 3311 and a pull rod 3312. The distance-fixing slide 3311 is fixed on different sliders of the slide block 323. The distance-fixing slide 3311 at the first end is fixed on the slide frame 322. The pull rod 3312 passes between adjacent distance-fixing slides 3311. Each slide changes its distance by being pulled by the pull rod 3312. After the pull rod 3312 is pulled open, the distance between adjacent distance-fixing slides 3311 is equal.

[0095] Please refer to Figure 7 The first stacked cell carrier 340 includes a cell stage 341, a first clamping drive 342, a gripper 343, and a first material sensor 344. The cell stage 341 and the first clamping drive 342 are both fixed on the fixed-distance slide block 3311. The two grippers of the gripper 343 are respectively fixed to the two output ends of the first clamping drive 342. The first clamping drive 342 can drive the gripper 343 to close to clamp the stacked cell 10.

[0096] Furthermore, the translation mechanism 320 also includes a translation positioning component 324, which is fixed to the first end of the variable pitch bracket 310. When the fixed pitch slide 3311 at the first end touches the translation positioning component 324, the translation positioning component 324 sends a trigger signal to the translation drive 321 to control the translation drive 321 to stop working, so that multiple fixed pitch units 331 that are already in the fixed pitch state, along with the corresponding first stacked cell carrier 340, stop at the preset position for stacked cell loading and unloading.

[0097] In this embodiment, the pitch-changing device 300 and the translation mechanism 320 can drive four fixed-distance slides 3311 to move four first stacked cell carriers 340. The pull rod 3312 limits the distance between the four fixed-distance slides 3311 and the four first stacked cell carriers 340, so as to change the distance between the four stacked cells and fix the distance and position. The pitch-changing device 300 can simultaneously adjust the spacing between the four stacked cells and fix the distance and position multiple stacked cells.

[0098] Please see Figure 8The overturning and transferring device 400 includes an advancing and retreating mechanism 410, a lifting mechanism 420, and a rotating clamping mechanism 430. The advancing and retreating mechanism 410 is fixed on the machine base 100, the lifting mechanism 420 is fixed on the output end of the advancing and retreating mechanism 410, and the rotating clamping mechanism 430 is fixed on the output end of the lifting mechanism 420.

[0099] Specifically, the forward / backward mechanism 410 includes a forward / backward linear module 411 and a forward / backward slide 412. The forward / backward linear module 411 is horizontally fixed on the machine base 100, and the forward / backward slide 412 is vertically fixed on the output end of the forward / backward linear module 411. The forward / backward linear module 411 can drive the forward / backward slide 412 to move. The lifting mechanism 420 is fixed on the forward / backward slide 412. The lifting mechanism 420 includes a lifting linear module 421 and a lifting slide 422. The lifting linear module 421 is vertically fixed on the forward / backward slide 412, and the lifting slide 422 is fixed on the output end of the lifting linear module 421. The lifting linear module 421 can drive the lifting slide 422 to rise and fall.

[0100] The rotating clamping mechanism 430 is horizontally fixed on the lifting slide 422. The rotating clamping mechanism 430 can clamp four stacked battery cells 10 and rotate them at a preset angle.

[0101] The rotating clamping mechanism 430 includes a rotating clamping bracket 431 and four rotating clamping units 432. The rotating clamping bracket 431 is fixed on the lifting slide 422, and the four rotating clamping units 432 are evenly spaced and fixed on the rotating clamping bracket 431. The four rotating clamping units 432 can clamp the four stacked cells 10 and then rotate them by a preset angle.

[0102] For details, please refer to Figure 9 The rotary clamping unit 432 includes a rotary drive 4321, a second clamping drive 4322, and two clamping assemblies 4323. The clamping assembly 4323 includes a clamping slide 43231 and clamps 43232. The rotary drive 4321 is fixed on the rotary clamping bracket 431, the second clamping drive 4322 is fixed on the output end of the rotary drive 4321, the two clamping slides 43231 are respectively fixed on the two output ends of the second clamping drive, and the two clamps 43232 are respectively fixed on the two clamping slides 43231.

[0103] In this embodiment, the flipping and transferring device 400 has an advancing / retreating mechanism 410 that drives a lifting mechanism 420 to move a rotating clamping mechanism 430 to a material handling station. The lifting mechanism 420 can also drive the rotating clamping mechanism 430 to rise and fall, and the rotating clamping mechanism 430 can clamp four stacked battery cells 10 and rotate them by a preset angle. The advancing / retreating mechanism 410 can also drive the lifting mechanism 420 to move a rotating clamping mechanism 430 to an unloading station. The lifting mechanism 420 can then drive the rotating clamping mechanism 430 to rise and fall again, and the rotating clamping mechanism 430 can release and unload the four stacked battery cells 10. Therefore, the flipping and transferring device 400 of this embodiment can flip and transfer four stacked battery cells 10.

[0104] Please refer to Figure 10 and Figure 11 The linear transfer device 500 includes a transfer mechanism 510 and eight second stacked cell carriers 520. The transfer mechanism 510 is fixed on the machine base 100, and the eight second stacked cell carriers 520 are fixed on the transfer mechanism 510. The transfer mechanism 510 can drive the eight second stacked cell carriers 520 to transfer eight stacked cells, and the second stacked cell carriers 520 can fix the stacked cells.

[0105] The transfer mechanism 510 includes a transfer base 511, a transfer linear module 512, a transfer slide block 513, and a transfer slide plate 514. The transfer base 511 is fixed on the machine base 100. The slide rails of the transfer linear module 512 and the transfer slide block 513 are both horizontally fixed on the transfer base 511. The transfer slide plate 514 is fixed on the output end of the transfer linear module 512 and the slider of the transfer slide block 513, so that one second-layer battery cell carrier 520 can be fixed on the transfer slide plate 514, or multiple second-layer battery cell carriers 520 can be arranged and fixed on the transfer slide plate 514.

[0106] Furthermore, the transfer mechanism 510 also includes a transfer limit switch 515 and a transfer limit switch 515 sensing element. The transfer limit switch 515 is fixed on the transfer base 511, and the transfer limit switch 515 sensing element is fixed on the transfer slide plate 514. The transfer limit switch 515 and the transfer limit switch 515 sensing element can control the transfer start position and / or the transfer target position.

[0107] Please refer to Figures 12 to 14 The second stacked cell carrier 520 includes a transfer carrier bracket 521, a cell carrier frame 522, two cell top fixing clamps 523, a cell bottom movable clamping assembly 524, and two cell side movable clamping assemblies 525; the second stacked cell carrier 520 is capable of fixing and loading the stacked cells 10.

[0108] The transfer carrier support 521 includes four transfer carrier support pillars 521 and a transfer carrier support top plate. The transfer carrier support top plate is fixed to the four transfer carrier support pillars 521. The transfer carrier support top plate has a bottom surface facing the transfer carrier support pillars 521 and a top surface on the opposite side of the bottom surface. The cell carrier 522 is fixed to the top surface of the transfer carrier support top plate and is capable of supporting the laminated cell 10.

[0109] Two cell top fixing clamps 523 are respectively fixed on the two corners of one end of the cell carrier 522, and can hold the two sides of the top surface of the stacked cell 10.

[0110] The cell bottom movable clamping assembly 524 is fixed in the middle of the top plate of the transfer carrier bracket 521, located at the opposite end of the two cell top fixing clamps 523, and is used to clamp the bottom surface of the stacked cell 10.

[0111] Two cell-side movable clamping assemblies 525 are respectively fixed on both sides of the top surface of the transfer carrier bracket 521, and can clamp the two sides of the stacked cell 10.

[0112] The battery cell carrier 522, two battery cell top fixing clamps 523, battery cell bottom movable clamping assembly 524, and two battery cell side movable clamping assemblies 525 form a stacked battery cell clamping opening.

[0113] The second cell stack carrier 520 is also equipped with a barcode scanner 526 and a second sensor 527. The barcode scanner 526 is fixed inside the cell carrier frame 522 and is used to scan and acquire the code on the cell stack 10. The second sensor 527 is fixed on the side of the top plate of the cell carrier frame 522, facing the cell stack clamping opening, and can detect whether there are cell stacks in the cell stack clamping opening of the transfer carrier.

[0114] The battery cell carrier 522 includes four battery cell carrier support columns 522, a battery cell carrier top plate 522, and two first battery cell carrier plates 5223. One end of each of the four battery cell carrier support columns 522 is fixed to the top surface of the top plate of the transfer carrier bracket 521. The top plate of the battery cell carrier 522 is fixed to the other end of the four battery cell carrier support columns 522. The two first battery cell carrier plates 5223 are fixed to both sides of the top plate of the battery cell carrier 522. Two battery cell top fixing clamps 523 are respectively fixed to the two corners of one end of the two first battery cell carrier plates 5223, and a barcode scanner 526 is fixed on the top plate of the battery cell carrier 522, located between the two first battery cell carrier plates 5223 and below the top surface of the two first battery cell carrier plates 5223.

[0115] Specifically, the cell bottom movable clamping assembly 524 includes a cell bottom movable clamp drive 5241, a cell bottom movable clamp slide 5242, a cell bottom movable clamp slider 5243, a cell bottom movable clamp slide plate 5244, two rollers 5245, a cell bottom movable clamp 5246, and a cell bottom movable clamp proximity switch 5247.

[0116] The cell bottom movable clamp drive 5241 is fixed to the bottom surface of the top plate of the transfer carrier bracket 521. The slide rail of the cell bottom movable clamp slide group 5242 is fixed to the top surface of the top plate of the transfer carrier bracket 521. The cell bottom movable clamp slider 5243 is fixed to the output end of the cell bottom movable clamp drive 5241. The cell bottom movable clamp slide plate 5244 is fixed to the cell bottom movable clamp slider 5243 and the slider of the cell bottom movable clamp slide group 5242. Two rollers 5245 are respectively fixed to the two sides of the front end of the cell bottom movable clamp slide plate 5244 and are lower than the top surface of the cell bottom movable clamp slide plate 5244. The cell bottom movable clamp 5246 is fixed to the middle of the top surface of the cell bottom movable clamp slide plate 5244, which is higher than the top surface of the two first cell carrier plates 5223 and can clamp the bottom surface of the stacked cell 10.

[0117] The cell bottom movable clamp proximity switch 5247 is fixed under the bottom surface of the top plate of the transfer carrier bracket 521. When aligned with the cell bottom movable clamp slider 5243, it can sense the advance of the cell bottom movable clamp 5246 to detect whether the stacked cells are clamped.

[0118] The cell-side movable clamping assembly 525 includes a cell-side movable clamp slide plate 5251, a cell-side movable clamp slide group 5252, a cell-side movable clamp 5253, a spring mounting member 5254, and a spring 5255. The cell-side movable clamp slide plate 5251 has a concave side surface 52511 and a convex side surface 52512 of the rollers; the slide rail of the cell-side movable clamp slide group 5252 is fixed to the top surface of the top plate of the transfer carrier bracket 521, and the cell-side movable clamp slide plate 5251 is fixed on the slider of the cell-side movable clamp slide group 5252. The cell-side movable clamp slide plate 5251 can slide in by having the concave side surface 52511 of the rollers fit against the rollers 5245 or slide out by having the convex side surface 52512 of the rollers fit against the rollers 5245. The cell-side movable clamp 5253 is fixed on the cell-side movable clamp slide plate 5251. The spring mounting piece 5254 is fixed on the side of the top surface of the top plate of the transfer carrier bracket 521. One end of the spring 5255 is fixed on the spring mounting piece 5254, and the other end of the spring 5255 is fixed on the cell-side movable clamp slide plate 5251, located on the outer side of the cell-side movable clamp slide plate 5251. The spring 5255 can press the cell-side movable clamp slide plate 5251 to slide the cell-side movable clamp 5253 towards the center of the stacked cell clamping opening to clamp the side of the stacked cell. When the cell bottom movable clamp 5246 leaves the bottom surface of the stacked cell, the roller 5245 contacts the convex side 52512 of the roller, and the cell side movable clamps 5253 on both sides move away from the cell carrier 522 to release the stacked cell; when the cell bottom movable clamp 5246 presses against the bottom surface of the stacked cell, the roller 5245 contacts the concave side 52511 of the roller, the spring 5255 returns to its original state, and pushes the cell side movable clamps 5253 on both sides to slide towards the center of the stacked cell clamping opening to clamp the side of the stacked cell 10.

[0119] As can be seen, in this embodiment, the second stacked cell carrier 520 carries the stacked cells 10 via the cell carrier frame 522. Two cell top fixing clamps 523 abut against the two sides of the top surface of the stacked cell 10, the cell bottom movable clamping assembly 524 clamps the bottom surface of the stacked cell 10, and two cell side movable clamping assemblies 525 clamp the two sides of the stacked cell 10, forming a stacked cell clamping opening. The barcode scanner 526 scans and obtains the code on the stacked cell 10, and the second sensor 527 detects whether there is a stacked cell 10 in the stacked cell clamping opening, thus reliably and comprehensively fixing and loading the stacked cells 10. The linear transfer device 500 in this embodiment includes a transfer mechanism 510 and eight second stacked cell carriers 520. The transfer mechanism 510 can drive the eight second stacked cell carriers 520 to carry eight stacked cells 10 for transfer, resulting in high cell transfer efficiency.

[0120] Please refer to Figure 15 and Figure 16The inspection and transfer device 800 includes a dual-movement linear module 810 and two stacked cell inspection racks 820; the stacked cell inspection and transfer device 800 is capable of delivering multiple stacked cells to an X-ray inspection mechanism.

[0121] The dual-motor 812 linear module 810 includes a dual-motor 812 drive unit 811 and two motors 812. The dual-motor 812 drive unit 811 is horizontally fixed on the external machine base 100. The two motors 812 are set on the dual-motor 812 drive unit 811 and are kept at a preset distance apart. The dual-motor 812 drive unit 811 can drive the two motors 812 to move simultaneously and in the same direction for the same preset distance.

[0122] Specifically, two stacked cell testing racks 820 are fixed on two movers 812 respectively. The linear module 810 of the dual movers 812 can drive the two stacked cell testing racks 820 to move simultaneously in the same direction a preset distance, and can cycle back and forth. As can be seen from the figures, when one stacked cell testing rack 820 is in the loading / unloading station, the other stacked cell testing rack 820 is in the testing station. After moving simultaneously in the same direction a preset distance, the stacked cell testing rack 820 that was originally in the loading / unloading station moves to the testing station, and the other stacked cell testing rack 820 that was originally in the testing station moves to the loading / unloading station, and can cycle alternately.

[0123] Please refer to Figure 17 The stacked battery cell testing rack 820 includes a frame 821, a fixed shelf 822, a movable shelf 823, a movable shelf lifting drive 824, a movable shelf lifting transmission system 825, two sets of movable shelf lifting slides 826 each, eight stacked battery cell holding assemblies 827, and a detection transfer limit switch sensor 829. The frame 821 is fixed on the mover 812. The fixed shelf 822 is horizontally fixed on the two inner side walls of the lower part of the frame 821. The movable shelf lifting drive 824 is fixed to the bottom of the frame 821. The input end of the movable shelf lifting transmission system 825 is connected to the output end of the movable shelf lifting drive 824. Two sets of slide rails, each with two movable shelf lifting slides 826, are vertically fixed to the two inner side walls of the frame 821. Each set of two slide rails is fixed to the same inner side wall of the frame 821, separated front and rear. The movable shelf 823 is fixed to the output end of the movable shelf lifting transmission system 825 and to the slider of each of the two sets of movable shelf lifting slides 826. Eight stacked cell holding assemblies 827 are fixed inside the movable shelf 823, and the load transfer limit switch sensor 829 is fixed to the lower part of the frame 821.

[0124] The movable shelf 823 includes two sets of two movable shelf slides 8231 in each set and five movable shelf plates 8232. The two movable shelf slides 8231 in each set are fixed on the sliders of the two movable shelf lifting slides 826 in each set. The five movable shelf plates 8232 are fixedly mounted on the two movable shelf slides 8231 in each set. The movable shelf 823 can support and lift eight stacked battery cells 10.

[0125] Please refer to Figure 18 The movable shelf lifting transmission system 825 includes a drive output transmission system 8251, a drive shaft 8252, and two vertical lifting transmission units 8253. The input end of the drive output transmission system 8251 is connected to the output end of the movable shelf lifting drive 824, and the input end of the drive shaft 8252 is connected to the output end of the drive output transmission system 8251. The drive shaft 8252 is horizontally located inside the bottom of the frame 821. The two vertical lifting transmission units 8253 are respectively connected to the output ends of the two drive shafts 8252. The two vertical lifting transmission units 8253 are located beside the two inner side walls of the frame 821 and connected to the two ends of the movable shelf 823. The movable shelf lifting transmission system 825 can transmit power to the movable shelf 823 under the drive of the movable shelf lifting drive 824, causing the movable shelf 823 to rise and fall.

[0126] The vertical lifting transmission unit 8253 includes a steering mechanism 82531, two lifting screw seats 82532, a lifting screw nut 82533, and a lifting screw 82534. The input end of the steering mechanism 82531 is connected to the output end of one end of the drive shaft 8252. The two lifting screw seats 82532 are respectively fixed to one end of the fixed shelf 822 and the inner top of the frame 821. The lifting screw nut 82533 can be fixed to any movable shelf 8232. The input end of the lifting screw 82534 is connected to the output end of the steering mechanism 82531, passes through the lifting screw nut 82533, and is supported within the two lifting screw seats 82532. The two vertical lifting transmission units 8253 can transmit power from the drive shaft 8252 to the movable shelf 823, causing the movable shelf 823 to rise and fall.

[0127] Please refer to Figure 19 The stacked battery cell holding assembly 827 includes a second battery cell carrier plate 8271, a holding drive member 8272, a holding guide group 8273, a holding palm 8274, and a battery cell holding port. The second battery cell carrier plate 8271 is fixed on a movable shelf 8232. The guide sleeves of the holding drive member 8272 and the holding guide group 8273 are fixed on the adjacent upper movable shelf 8232. The holding palm 8274 is fixed on the output end of the holding drive member 8272 and the guide post of the holding guide group 8273. The second battery cell carrier plate 8271 and the holding palm 8274 form a battery cell holding port. The holding drive member 8272 can drive the holding palm 8274 to press down on the stacked battery cell 10.

[0128] Please refer to Figure 20 The stacked battery cell testing rack 820 also includes a folding tab assembly 828, which is fixed on a fixed shelf 822 and inside a movable shelf 823. Specifically, the folding tab assembly 828 includes a folding tab drive 8281, a folding tab guide sleeve 8282, a folding tab guide post 8283, four folding tab drive rods 8284, and sixteen tab folds 8285. The folding tab drive 8281 is fixed on the frame 821, the folding tab guide sleeve 8282 is fixed on the movable shelf 8232, the folding tab guide post 8283 is vertically fixed to the output end of the folding tab drive 8281 and passes through the folding tab guide sleeve 8282 and / or the fixed shelf 822, the four folding tab drive rods 8284 are horizontally fixed on the folding tab guide post 8283, and the sixteen tab folds 8285 are respectively fixed on the four folding tab drive rods 8284. Each of the four pole tab folding rods 8284 is fixed with four pole tab folding palms 8285 at a preset position. The pole tab folding drive unit 8281 can drive the pole tab folding guide post 8283 to move up and down along the vertical direction of the pole tab folding guide sleeve 8282, along with the four pole tab folding rods 8284 and the sixteen pole tab folding palms 8285. During the upward movement, the sixteen pole tab folding palms 8285 can fold the anode ears 101 and cathode ears 102 of the eight laminated cells 10 upward to avoid blocking the detection light.

[0129] In this embodiment, the testing and transfer device 800 has two stacked battery cell testing racks 820 fixed on the two movers 812 of a double-mover linear module 810. These racks can carry, clamp, and lift stacked battery cells for testing. The double-mover linear module 810 can drive the two stacked battery cell testing racks 820 to move simultaneously in the same direction a preset distance. When one stacked battery cell testing rack 820 is in the loading or unloading position, the other stacked battery cell testing rack 820 is in the testing position. After moving simultaneously in the same direction a preset distance, one stacked battery cell testing rack 820 originally in the loading / unloading position moves to the testing position, and the other stacked battery cell testing rack 820 originally in the testing position moves to the loading / unloading position. This can be done cyclically, thus avoiding the testing host being idle during loading / unloading. This testing and transfer device 800 has high testing efficiency.

[0130] Please refer to Figure 21 and Figure 22 The X-ray detection device 900 includes two X-ray emitting mechanisms 910, four TDI receiving mechanisms 920, and an image processing system.

[0131] Two X-ray emitting mechanisms 910 are fixed at both ends of the centerline of the machine base 100 with the X-axis as the axis of symmetry. Four TDI receiving mechanisms 920 are fixed at the four corners of the machine base 100, respectively located on both sides of the centerline of the Y-axis of the two X-ray emitting mechanisms 910. The two X-ray emitting mechanisms 910 and the four TDI receiving mechanisms 920 together form a stacked cell detection port, which is used for X-ray detection of the stacked cell when it is in its position. The X-ray emitting mechanism 910 of the stacked battery cell emits X-rays to irradiate the stacked battery cell 10. The TDI receiving mechanism 920 receives and images the X-rays passing through a corner of the stacked battery cell 10. The image processing system is connected to the TDI receiving mechanism 920 and can calculate the number of layers of the cathode sheet 102 and anode sheet 101, the asymmetry of the edges of all cathode sheet coatings and all anode sheet coatings, and the deviation of the distance D between the edges of all cathode sheet coatings and all anode sheet coatings on the image using software algorithms. It then compares the results with the acceptable standard values ​​to determine whether the stacking quality of the stacked battery cell 10 meets the requirements. The X-ray inspection device 900 of the stacked battery cell can detect the number of layers of the cathode sheet 102 and anode sheet 101 and the electrode misalignment size of the stacked battery cell and determine the passability of the stacked battery cell 10.

[0132] For details, please refer to Figure 23 The X-ray emitting mechanism 910 includes an X-ray emitting head drive assembly 911, an X-ray emitting head 912, and an X-ray emitter 913. Both the X-ray emitting head drive assembly 911 and the X-ray emitter 913 are fixed on the machine base 100. The X-ray emitting head 912 is fixed to the output end of the X-ray emitting head drive assembly 911. The X-ray emitting head 912 can receive the X-rays emitted by the X-ray emitter 913 and, after interception, emit a fan-shaped X-ray. The X-ray emitting head drive assembly 911 can drive the X-ray emitting head 912 to move linearly towards the stacked cell, adjusting the width and thickness of the fan-shaped X-ray emitted by the X-ray emitting head 912 so that the X-rays can irradiate and cover the corners of the stacked cell 10.

[0133] The X-ray emitting head drive assembly 911 includes an X-ray emitting head support 9111, an X-ray emitting head linear module 9112, an X-ray emitting head slide 9113, an X-ray emitting head limit switch assembly 9114, and an X-ray emitting head limit switch sensor 9115. The X-ray emitting head support 9111 is fixed on the machine base 100. The X-ray emitting head linear module 9112 is horizontally fixed on the X-ray emitting head support 9111 along the Y-axis. The X-ray emitting head slide 9113 is fixed to the output end of the X-ray emitting head linear module 9112, allowing the X-ray emitting head 912 to be fixed on the X-ray emitting head slide 9113. The X-ray emitting head limit switch assembly 9114 is fixed on the side wall of the X-ray emitting head linear module 9112, and the X-ray emitting head limit switch sensing plate 9115 is fixed at the corresponding position of the X-ray emitting head slide 9113. The X-ray emitting head linear module 9112 can drive the X-ray emitting head 912 to move along the Y-axis toward the stacked battery cell.

[0134] For details, please refer to Figure 24 The TDI receiving mechanism 920 includes a TDI driving assembly 921 and a TDI 922. The TDI driving assembly 921 is horizontally fixed on the machine base 100 along the Y-axis, and the TDI 922 is vertically fixed at the output end of the TDI driving assembly 921. The TDI receiving mechanism 920 can drive the TDI 922 to receive and image X-rays passing through a corner of the stacked cell 10.

[0135] The TDI drive assembly 921 includes a TDI Y-axis linear module 9211, a TDI X-axis linear module 9212, a TDI slide plate 9213, a TDI turntable 9214, a TDI bracket 9215, and a TDI manual pan-tilt head 9216. The TDI Y-axis linear module 9211 is horizontally fixed to the machine tool 100 along the Y-axis direction. The TDI X-axis linear module 9212 is horizontally fixed to the output end of the TDI Y-axis linear module 9211. The TDI slide plate 9213 is horizontally fixed to the output end of the TDI X-axis linear module 9212. The TDI turntable 9214 is horizontally fixed to the TDI slide plate 9213. The TDI bracket 9215 is fixed to the output end of the TDI turntable 9214. The input end of the TDI manual pan-tilt head 9216 is vertically fixed to the TDI bracket 9215, allowing the TDI 922 to be vertically fixed to the output end of the TDI manual pan-tilt head 9216. TDI drive assembly 921 can drive TDI 922 to move horizontally along the X-axis and Y-axis and rotate about the Z-axis to receive and image X-rays passing through a corner of the laminated cell.

[0136] The X-ray detection device 900 of this embodiment has two X-ray emitting heads 912 that can receive X-rays emitted by two X-ray emitters 913 respectively. Driven by the two X-ray emitting head driving components 911, it can simultaneously emit X-rays to the four corners of the laminated cell. The four TDIs 922, driven by the four TDI driving components 921, can simultaneously receive and image the X-rays passing through the four corners of the laminated cell. The image processing system is connected to the TDIs 922 and can process the image through software algorithms and calculate the number of cathode and anode layers, the asymmetry of the edges of all cathode and anode layers, and the deviation of the distance D between the edges of all cathode and anode layers. It can then compare the results with the qualified standard value to determine whether the laminated cell is qualified, resulting in high detection efficiency.

[0137] Please refer to Figure 25 and Figure 26 The NG rejection device 1100 includes six unloading and transfer mechanisms 1110, an NG handling mechanism 1120, a flipping mechanism 1130, and an NG unloading conveyor belt 1140.

[0138] The machine 100 is equipped with a loading station, an NG rejection station and an OK unloading station in sequence.

[0139] The unloading and transfer mechanism 1110 is fixed on the machine base 100. The six unloading and transfer mechanisms 1110 are arranged in the same direction, spanning the loading station, the NG rejection station and the OK unloading station. The unloading and transfer mechanism 1110 can position and transfer the stacked battery cells.

[0140] The NG handling mechanism 1120 is fixed on the NG rejection station of the machine 100 and spans six unloading and transfer mechanisms 1110. It can grab the NG stacked cells in the stacked cell carrier and transfer them to the flipping mechanism 1130.

[0141] The flipping mechanism 1130 is fixed on the NG rejection station at the edge of the machine 100 and is connected to the NG transport mechanism 1120. It can flip the upright NG stacked cells to a flat position and place the flat NG stacked cells onto the NG unloading conveyor belt 1140.

[0142] The NG unloading conveyor belt 1140 is located on the outer side of the machine 100 and is connected to the flipping mechanism 1130, which can transport the NG stacked cells outward.

[0143] Please refer to Figure 27The unloading and transfer mechanism 1110 includes an unloading and transfer linear module 1111, a third-layer battery cell carrier 1112, two unloading and transfer limit switches 1113, and an unloading and transfer limit switch sensing element 1114. The unloading and transfer linear module 1111 is fixed on the machine base 100, and the third-layer battery cell carrier 1112 is fixed on the output end of the unloading and transfer linear module 1111 for accommodating the stacked battery cells 10. The two unloading and transfer limit switches 1113 are respectively fixed on the same side of the unloading and transfer linear module 1111 at the transfer start position and transfer end position, and the unloading and transfer limit switch sensing element 1114 is fixed on the third-layer battery cell carrier 1112. The unloading and transfer linear module 1111 can drive the third-layer battery cell carrier 1112 to move linearly. When the third stacked cell carrier 1112 moves to the set transfer start position or transfer end position, the corresponding unloading transfer limit switch 1113 is triggered to control the unloading transfer linear module 1111 to stop working, so that the third stacked cell carrier 1112 can be parked in the designated position.

[0144] Please refer to Figure 28 The third-layer cell carrier 1112 includes a carrier frame 11121, a clamp opening and closing drive component 11122, three clamp opening and closing transmission rods 11123 and twenty-four clamp opening and closing transmission blocks 11124, eight side-standing clamps 11125, eight third material sensors 11126 and two sets of cell position detection sensors 11127.

[0145] The carrier frame 11121 is fixed to the output end of the unloading and transfer linear module 1111, which can drive the carrier frame 11121 to move linearly. The clamp opening and closing drive component 11122 is fixed to the outer side of the carrier frame 11121. Three clamp opening and closing transmission rods 11123 are slidably mounted on the carrier frame 11121 and indirectly fixed to the output end of the clamp opening and closing drive component 11122. Twenty-four clamp opening and closing transmission blocks 11124 are fixed on the three clamp opening and closing transmission rods 11123 and distributed at intervals along the axial direction of the three clamp opening and closing transmission rods 11123. Eight side clamps 11125 are provided on the clamp opening and closing transmission blocks 11124 and inside the carrier frame 11121. The clamp opening and closing drive component 11122 can simultaneously drive three clamp opening and closing transmission rods 11123 to slide all twenty-four clamp opening and closing transmission blocks 11124 along the axial direction of the clamp opening and closing transmission rods 11123, so as to simultaneously clamp or release the eight stacked cells 10 on the eight side-standing clamps 11125.

[0146] Eight third material sensors 11126, the same number as the side clamps 11125, are fixed inside the carrier frame 11121, located next to the eight side clamps 11125. Two sets of cell position detection sensors 11127 are located on both sides of the carrier frame 11121, capable of detecting whether the stacked cells 10 are placed in the preset position.

[0147] Please refer to Figure 29 The vehicle frame 11121 includes a vehicle underframe 111211, a vehicle floor plate 111212, two vehicle side plates 111213, and six vehicle side plate sleeves 111214. The carrier base frame 111211 is fixed on the output end of the unloading and transfer linear module 1111. The carrier base plate 111212 is fixed on the top of the carrier base frame 111211. Two carrier side plates 111213 are fixed on both sides of the carrier base plate 111212. Six carrier side plate sliding sleeves 111214 are fixed on the two carrier side plates 111213. Three carrier side plate sliding sleeves 111214 are fixed on each carrier side plate 111213. The two ends of the three clamping plate opening and closing transmission rods 11123 are respectively sleeved in the three carrier side plate sliding sleeves 111214 fixed on the two carrier side plates 111213, so that the three clamping plate opening and closing transmission rods 11123 can slide on the carrier frame 11121.

[0148] The side-standing clamp 11125 includes a third cell carrier plate 111251, a fixed clamping plate 111252, a movable clamping plate 111253, and a stacked cell clamping opening 111254. The third cell carrier plate 111251 and the fixed clamping plate 111252 are both fixed on the carrier base plate 111212. The movable clamping plate 111253 is fixed on the clamping plate opening and closing transmission block 11124 and can move relative to the fixed clamping plate 111252. The third cell carrier plate 111251, the fixed clamping plate 111252, and the movable clamping plate 111253 together form the stacked cell clamping opening 111254.

[0149] Please refer to Figure 30The NG transport mechanism 1120 includes an NG transport support 1121, an NG transport translation linear module 1122, an NG transport lifting linear module 1123, and an NG transport robot 1124. The NG transport support 1121 is fixed to the NG rejection station of the machine tool 100, spanning six unloading and transfer mechanisms 1110. The NG transport translation linear module 1122 is horizontally fixed to the NG transport support 1121, the NG transport lifting linear module 1123 is vertically fixed to the output end of the NG transport translation linear module 1122, and the NG transport robot 1124 is vertically fixed to the output end of the NG transport lifting linear module 1123. The NG transport translation linear module 1122 can drive the NG transport robot 1124 to move linearly in the horizontal direction, and the NG transport lifting linear module 1123 can drive the NG transport robot 1124 to move linearly in the vertical direction, so that the NG transport robot 1124 moves to a designated position in three-dimensional space.

[0150] Please refer to Figure 31 The flipping mechanism 1130 includes a flipping forward and backward drive 1131, a flipping forward and backward slide group 1132, a flipping forward and backward slide 1133, a flipping lifting drive 1134, a flipping lifting slide group 1135, a flipping lifting slide plate 1136, a flipping drive 1137, a third clamping drive 1138, and two flipping grippers 1139.

[0151] The slide rails of the tilting forward and backward drive 1131 and the tilting forward and backward slide group 1132 are fixed on the machine base 100. The tilting forward and backward slide 1133 is fixed on the output end of the tilting forward and backward drive 1131 and the slider of the tilting forward and backward slide group 1132. The slide rails of the tilting lifting drive 1134 and the tilting lifting slide group 1135 are fixed on the tilting forward and backward slide 1133. The tilting lifting slide 1136 is fixed on the output end of the tilting lifting drive 1134 and the slider of the tilting lifting slide group 1135. The tilting drive 1137 is fixed on the tilting lifting slide 1136. The third clamping drive 1138 is fixed on the output end of the tilting drive 1137. The two tilting jaws 1139 are respectively fixed on the two output ends of the third clamping drive 1138.

[0152] The flipping forward and backward drive 1131 can drive the flipping gripper 1139 to move directly below the NG handling robot 1124 of the NG handling mechanism 1120. The third clamping drive 1138 can drive the flipping gripper 1139 to clamp the side-standing stacked battery cell 10. The flipping lifting drive 1134 is used to drive the flipping drive 1137 to lift. The flipping drive 1137 can drive the third clamping drive 1138 to flip. The flipping mechanism 1130 is used to lay the side-standing stacked battery cell 10 flat on the NG unloading conveyor belt 1140.

[0153] In this embodiment, the NG rejection device 1100 has an unloading and transfer mechanism 1110 that can transfer eight stacked battery cells 10, held by eight third-layer battery cell carriers 1112, to the NG rejection station. The NG transport mechanism 1120 can pick up the NG stacked battery cells 10 and place them onto a flipping mechanism 1130. The flipping mechanism 1130 can then flip the NG stacked battery cells 10 onto an NG unloading conveyor belt 1140, which can then transport the NG stacked battery cells 10 outwards. The unloading and transfer mechanism 1110 can also transfer OK stacked battery cells 10 to the unloading station. Therefore, the NG rejection device 1100 of this embodiment can reject NG stacked battery cells 10 onto the NG conveyor belt and transfer OK stacked battery cells 10 to the unloading station, resulting in high work efficiency.

[0154] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A stacked cell X-ray inspection machine, characterized by, The machine table is used for arranging two flow channels in the rear-to-front direction symmetrically about the center line as the symmetric axis, The feeding robot, the distance changing device, the turnover transfer device, the linear transfer device, the stacking robot, the loading and unloading device at the feeding end, the detection transfer device, the X-ray detection device, the loading and unloading device at the discharging end, the detection discharging robot, the NG rejection device and the discharging robot are sequentially fixed on the machine table and arranged along the two flow channels; The feeding robot is used for grabbing the stacked battery cell from the external feeding pull belt and transferring it to the distance changing device; The distance changing device is used for receiving the stacked battery cells grabbed by the feeding robot and adjusting the distance between the stacked battery cells; The turnover transfer device is used for entering the distance changing device to once clamp the stacked battery cells, turning over the stacked battery cells by a preset angle and then placing the stacked battery cells into the linear transfer device; The linear transfer device is used for transferring the stacked battery cells to a position close to the stacking robot while scanning the codes; The stacking robot is used for grabbing the stacked battery cells and transferring them to the loading and unloading device at the feeding end; The loading and unloading device at the feeding end is used for carrying the stacked battery cells to the detection transfer device, and the loading and unloading device at the discharging end is used for taking the detected stacked battery cells from the detection transfer device and transferring them to a position close to the detection discharging robot; The detection transfer device is used for transferring the stacked battery cells from the detection loading and unloading station of the X-ray detection device to the detection station of the X-ray detection device, and transferring the detected stacked battery cells back to the detection loading and unloading station of the X-ray detection device; The X-ray detection device is used for detecting the number of layers of the cathode sheet and the anode sheet of each stacked battery cell in the stacked battery cells, the size value of the sheet misalignment between the cathode sheet and the anode sheet, and comparing the standard value to determine whether the quality of the stacked battery cell is qualified; The detection discharging robot is used for grabbing the detected stacked battery cells from the loading and unloading device at the discharging end and transferring them to the NG rejection device; The NG rejection device is used for selecting and transferring the NG stacked battery cells to the NG discharging pull belt, and transferring the OK stacked battery cells to a position close to the discharging robot; The discharging robot is used for grabbing the OK stacked battery cells and transferring them to the external discharging pull belt; The distance changing device comprises a distance changing support, a translation mechanism, a distance fixing mechanism and a plurality of first stacked battery cell carriers. The distance changing support is fixed on the machine table. The translation mechanism comprises a translation driving member, a sliding frame and a sliding group, the translation driving member and the sliding rails of the sliding group are fixed on the distance changing support, the sliding frame is fixed on the output end of the translation driving member, and the translation driving member is used for driving the sliding frame to move linearly in the horizontal direction. The distance fixing mechanism comprises a plurality of distance fixing units, the plurality of distance fixing units are fixed on different sliding blocks of the sliding group and arranged along the sliding rails of the sliding group, the first end distance fixing unit is fixed on the sliding frame, and the translation driving member is used for driving the plurality of distance fixing units to move so as to change the distance and fix the distance. The first stacked battery cell carrier is fixed on the distance fixing unit and used for loading the stacked battery cell. ​ The turnover transfer device comprises a forward-and-back mechanism, a lifting mechanism and a rotary clamping mechanism, the forward-and-back mechanism is fixed on a machine table, the lifting mechanism is fixed on an output end of the forward-and-back mechanism, and the rotary clamping mechanism is fixed on an output end of the lifting mechanism; The forward-and-back mechanism comprises a forward-and-back linear module and a forward-and-back carriage, the forward-and-back linear module is horizontally fixed on the machine table, and the forward-and-back carriage is vertically fixed on an output end of the forward-and-back linear module, and the forward-and-back linear module is used to drive the forward-and-back carriage to move; The lifting mechanism is fixed on the forward-and-back carriage, the lifting mechanism comprises a lifting linear module and a lifting carriage, the lifting linear module is vertically fixed on the forward-and-back carriage, and the lifting carriage is fixed on an output end of the lifting linear module, and the lifting linear module is used to drive the lifting carriage to lift and lower; The rotary clamping mechanism is horizontally fixed on the lifting carriage, and the rotary clamping mechanism is used to clamp one or more stacked cells and rotate by a preset angle.

2. The stack cell X-ray inspection machine of claim 1, wherein, The number of the feeding robots is one; the number of the variable-distance devices and the turnover transfer devices is four, and two left and right variable-distance devices are distributed at the front and back ends of each feeding robot, and one turnover transfer device is longitudinally connected to each variable-distance device; two left and right variable-distance devices and the corresponding two turnover transfer devices are separately arranged in the left and right two logistics channels; The number of the linear transfer devices and the stacking robots is two, and the linear transfer devices and the stacking robots are separately arranged in the left and right two logistics channels from back to front; the linear transfer devices are parallel to the front and back two variable-distance devices and are longitudinally connected by the front and back two turnover transfer devices, and the stacking robots are arranged outside the corresponding linear transfer devices; The number of the detection transfer device is one, and the detection transfer device is longitudinally connected to the two logistics channels and is provided with a central detection station and two detection feeding and discharging stations separately arranged at the two ends; the number of the loading and unloading devices is four, and each loading and unloading device is arranged at the feeding end and the discharging end of the detection transfer device along the two logistics channels, the loading and unloading device at the feeding end is connected to the stacking robot and is used to receive the stacked cells transferred by the stacking robot and then transfer the stacked cells to the detection transfer device for feeding; The number of the X-ray detection device is one, and the X-ray detection device is arranged at the detection station of the detection transfer device; The number of the detection discharging robot is one, and the detection discharging robot is connected to the two discharging end loading and unloading devices, and the two discharging end loading and unloading devices are used to grab the detected stacked cells on the X-ray detection device and then transfer the stacked cells to the detection discharging robot; The number of the NG rejection device and the discharging robot is one, the NG rejection device is connected to the detection discharging robot, is used to receive the detected stacked cells transferred by the detection discharging robot, select and transfer the NG stacked cells to the NG discharging pull belt, and transfer the OK stacked cells to a position close to the discharging robot, and the discharging robot is used to grab the OK stacked cells and transfer the OK stacked cells to an external discharging pull belt.

3. The stack cell X-ray inspection machine of claim 1, wherein, The linear transfer device comprises a transfer mechanism and one or more second laminated battery cell carriers, the transfer mechanism is fixed on a machine table, and the one or more second laminated battery cell carriers are fixed on the transfer mechanism, and the transfer mechanism is used to drive the one or more second laminated battery cell carriers to transfer one or more laminated battery cells.

4. The stack cell X-ray inspection machine of claim 3, wherein, The second laminated battery cell carrier comprises a transfer carrier support, a cell carrier, two cell top fixed clamps, a cell bottom movable clamping assembly and two cell side movable clamping assemblies; the laminated battery cell transfer carrier is used to fix and load laminated battery cells; The transfer carrier support comprises four transfer carrier support struts and a transfer carrier support top plate, the transfer carrier support top plate is fixed on the four transfer carrier support struts, the transfer carrier support top plate has a transfer carrier support top plate bottom surface facing the transfer carrier support struts and a transfer carrier support top plate top surface opposite to the transfer carrier support top plate bottom surface; The cell carrier is fixed on the transfer carrier support top plate top surface and used to carry laminated battery cells; The two cell top fixed clamps are respectively fixed on two corners of one end of the cell carrier and used to hold two sides of the top surface of the laminated battery cell; The cell bottom movable clamping assembly is fixed on the middle part of the transfer carrier support top plate and located at the other end opposite to the two cell top fixed clamps, and is used to clamp the bottom surface of the laminated battery cell; The two cell side movable clamping assemblies are respectively fixed on two sides of the transfer carrier support top plate top surface and used to clamp two side surfaces of the laminated battery cell; The cell carrier, the two cell top fixed clamps, the cell bottom movable clamping assembly and the two cell side movable clamping assemblies form a laminated battery cell clamping opening; The transfer carrier is also provided with a code scanner and a material sensor, the code scanner is fixed in the cell carrier and used to scan and obtain the code on the laminated battery cell, and the material sensor is fixed on the side of the cell carrier top plate and faces the laminated battery cell clamping opening and is used to detect whether there is a laminated battery cell in the laminated battery cell clamping opening.

5. The stack cell X-ray inspection machine of claim 1, wherein, The detection transfer device comprises a double-motor linear module and two laminated battery cell detection racks; the laminated battery cell detection transfer device is used to deliver a plurality of laminated battery cells to the X-ray detection mechanism; The double-motor linear module comprises a double-motor driving part and two motors; the double-motor driving part is horizontally fixed on a machine table, the two motors are arranged on the double-motor driving part and kept apart by a preset distance, and the double-motor driving part is used to drive the two motors to move simultaneously and in the same direction by the preset distance; The two laminated battery cell detection racks are respectively fixed on the two motors, the double-motor linear module is used to drive the two laminated battery cell detection racks to move simultaneously and in the same direction by the preset distance and can be circulated back and forth, when one of the laminated battery cell detection racks is at a feeding and discharging station, the other laminated battery cell detection rack is at a detection station, after moving simultaneously and in the same direction by the preset distance, the laminated battery cell detection rack originally at the feeding and discharging station is changed to the detection station, and the other laminated battery cell detection rack originally at the detection station is changed to the feeding and discharging station, and the circulation is alternated.

6. The stack cell X-ray inspection machine of claim 1, wherein, The X-ray detection device comprises two X-ray emitting mechanisms, four TDI receiving mechanisms and an image processing system; The two X-ray emitting mechanisms are fixed on the ends of the center line of the machine table in the X-axis direction of the machine table as the symmetric axis, the four TDI receiving mechanisms are respectively fixed on the four corners of the machine table and are respectively located on the symmetric sides of the Y-axis direction center line of the two X-ray emitting mechanisms; the two X-ray emitting mechanisms and the four TDI receiving mechanisms form a stacked plate battery detection port, and the stacked plate battery detection port is used for X-ray detection of the stacked plate battery; the stacked plate battery X-ray emitting mechanism is used for emitting X-ray to irradiate the stacked plate battery, the TDI receiving mechanism is used for receiving the X-ray passing through one corner of the stacked plate battery and imaging, the image processing system is connected with the TDI receiving mechanism, and is used for processing the image by a software algorithm, calculating the number of layers of the cathode sheet and the anode sheet, the respective unevenness of the total cathode sheet coating edge and the total anode sheet coating edge, and the deviation of the distance D between the total cathode sheet coating edge and the total anode sheet coating edge, and comparing the qualified standard value to determine whether the stacked plate quality of the stacked plate battery is qualified; the stacked plate battery X-ray detection device is used for detecting the number of layers of the cathode sheet and the anode sheet and the size value of the sheet misplacement of the stacked plate battery and determining the qualification of the stacked plate battery.

7. The stack cell X-ray inspection machine of claim 1, wherein, The NG rejection device comprises one or more unloading transfer mechanisms, an NG carrying mechanism, a turnover mechanism and an NG unloading pull belt; The machine table is sequentially provided with a feeding station, an NG rejection station and an OK unloading station; The unloading transfer mechanism is fixed on the machine table, and a plurality of unloading transfer mechanisms are arranged in the same direction and cross the feeding station, the NG rejection station and the OK unloading station; the unloading transfer mechanism is used for positioning and transferring the stacked plate battery; The NG carrying mechanism is fixed on the NG rejection station of the machine table and longitudinally crosses one or more unloading transfer mechanisms, and is used for grabbing the NG stacked plate battery in the third stacked plate battery carrier on the unloading transfer mechanism to the turnover mechanism; The turnover mechanism is fixed on the NG rejection station of the edge position of the machine table and is connected with the NG carrying mechanism, and is used for turning the vertically standing NG stacked plate battery to a lying posture and placing the lying posture NG stacked plate battery to the NG unloading pull belt; The NG unloading pull belt is located on the outer side of the machine table and is connected with the turnover mechanism and is used for conveying the NG stacked plate battery outward.

Images