Battery cell vertical x-ray inspection machine

Abstract

The application provides a battery cell vertical X-ray detection machine, which comprises a machine table and an upper feeding robot, two first distance changing devices, two first overturning transfer devices, two first linear transfer devices, a gantry upper feeding device, two conveying devices, two X-ray detection devices, a gantry lower feeding device, two second linear transfer devices, two second overturning transfer devices, two second distance changing devices, a lower feeding robot and a battery cell X-ray detection station, the X-ray detection devices vertically emit X-rays downward to cover and penetrate both ends of the battery cell to form images, an image processing system analyzes and detects the number of layers of cathode sheets and anode sheets of the battery cell and the sheet dislocation size value of the cathode sheets and the anode sheets, and compares the standard value to determine whether the quality of the battery cell is qualified, further comprising an NG rejection device, an NG carrying mechanism carries the NG battery cell on the NG selection and transfer mechanism to the NG buffer mechanism, and carries the OK battery cell to the external lower feeding pull belt, and the application has high detection efficiency.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of X-ray detection equipment for battery cell, and particularly relates to a vertical X-ray detection machine for battery cell. BACKGROUND

[0002] Please refer to Figure 1 After the battery cell 10 of the square aluminum shell battery is hot-pressed, the cathode belt and the anode belt are required to be aligned respectively, and the cathode lug 101 and the anode lug 102 are required to be aligned respectively. Generally, the difference between adjacent cathode belt edges and the difference between adjacent anode belt edges and the difference between adjacent cathode lug 101 edges and the difference between adjacent anode lug 102 edges are required to be ≤0.1mm, the deviation of the distance D between the cathode belt edge and the adjacent anode belt edge is required to be ≤0.1mm, the difference between all cathode belt edges and the difference between all anode belt edges and the difference between all cathode lug 101 edges and the difference between all anode lug 102 edges are required to be ≤0.2mm, the deviation of the distance D between all cathode belt edges and all anode belt edges is required to be ≤0.2mm, the measurement accuracy is required to be ≤0.025mm, and the repeated measurement accuracy is required to be ≤0.06mm. The difference and the deviation of the distance D are generally detected by X-ray.

[0003] The X-ray detection principle is as follows: the high-energy X-ray imaging system is used to shoot X-rays at a certain angle into the edge corner of the battery cell, and then the X-rays are imaged on the detector (English abbreviation: TDI), and then the number of layers of the cathode belt and the anode belt and the difference between all cathode belt edges and all anode belt edges and the deviation of the distance D between all cathode belt edges and all anode belt edges are calculated on the image through a software algorithm, the difference and the deviation are collectively referred to as the size value of the cathode belt misalignment, and the quality of the battery cell is determined by comparing the standard value.

[0004] Then, the NG (unqualified) battery cell after detection is removed, and the OK (qualified) battery cell after detection is transferred downward.

[0005] In order to determine whether the quality of the battery cell is qualified and remove the NG (unqualified) battery cell after detection, a vertical X-ray detection machine for battery cell needs to be developed. SUMMARY

[0006] The purpose of the present application is to provide a vertical X-ray detection machine for battery cell, which can vertically shoot X-rays to image the battery cell, and the image processing system can determine whether the quality of the battery cell is qualified.

[0007] The present application is implemented as follows: a vertical X-ray detection machine for battery cell, comprising:

[0008] A machine table is provided with a logistics channel for conveying and detecting the battery cell from back to front;

[0009] A feeding robot, two first distance changing devices, two first turnover transfer devices, two first linear transfer devices, a gantry feeding device, two conveying devices, two X-ray detection devices, a gantry discharging device, two second linear transfer devices, two second turnover transfer devices, two second distance changing devices and a discharging robot fixed in sequence on the machine table along the logistics channel together constitute a battery cell vertical X-ray detection line;

[0010] The feeding robot is used to carry the battery cells from the external feeding pull belt to the two first distance changing devices;

[0011] The two first distance changing devices are arranged in parallel along the logistics direction and constitute the starting end of the two logistics channels, and are used to receive the battery cells carried by the feeding robot and open the distance between the battery cells;

[0012] The two first turnover transfer devices are located beside the two first distance changing devices and extend forward, are used to respectively extend into the corresponding first distance changing device to clamp the battery cells once, and then transfer and place the battery cells into the corresponding first linear transfer device after turning over 90°;

[0013] The two first linear transfer devices are located beside the two first turnover transfer devices and extend forward, and are used to transfer the battery cells to the gantry feeding device below, and simultaneously perform code scanning;

[0014] The gantry feeding device longitudinally spans the two first linear transfer devices and the two conveying devices, and is used to carry the battery cells on the two first linear transfer devices to the feeding end of the two conveying devices;

[0015] The two conveying devices are located beside the two first linear transfer devices and extend forward, and are used to convey the battery cells to the two X-ray detection devices, and convey the detected battery cells to the gantry discharging device below;

[0016] The two X-ray detection devices are located beside the two conveying devices and include a same image processing system, are used to vertically downwardly emit X-rays to cover and penetrate the two ends of the battery cells to form images, the image processing system detects the number of layers of the cathode sheet and the anode sheet of the battery cell and the sheet dislocation size value of the cathode sheet and the anode sheet through image analysis, and compares the standard value to determine whether the quality of the battery cell is qualified; one X-ray detection device and a corresponding conveying device constitute a battery cell X-ray detection station;

[0017] The gantry discharging device longitudinally spans the two conveying devices and the two second linear transfer devices, and is used to take the detected battery cells from the discharging end of the two conveying devices and transfer the battery cells to the second linear transfer device;

[0018] Two second linear transfer devices are located beside the two conveying devices and extend forward, for transferring the battery cells to the second turnover transfer devices,

[0019] Two second turnover transfer devices are located beside the two second linear transfer devices and extend forward, for extending into the second linear transfer devices to clamp a plurality of battery cells at a time, and transferring and placing the battery cells into the second distance changing devices after turning over 90°;

[0020] Two second distance changing devices are located beside the two second turnover transfer devices, for receiving a plurality of battery cells carried by the second turnover transfer devices, and folding the distance of the plurality of battery cells;

[0021] The unloading robot is used for carrying the battery cells.

[0022] The beneficial effects of the present application are:

[0023] The battery cell vertical X-ray detection machine of the present application is provided with a battery cell vertical X-ray detection line from the rear to the front direction, comprising a machine table, a logistics channel for conveying and detecting battery cells from the rear to the front, and a loading robot, two first distance changing devices, two first turnover transfer devices, two first linear transfer devices, a gantry loading device, two conveying devices, two X-ray detection devices, a gantry unloading device, two second linear transfer devices, two second turnover transfer devices, two second distance changing devices, and a unloading robot fixed on the machine table in sequence. The two X-ray detection devices are located beside the two conveying devices, and comprise the same image processing system. One X-ray detection device and one corresponding conveying device constitute a battery cell X-ray detection station. The X-ray detection device is used for emitting X-rays vertically downward to cover and penetrate the two ends of the battery cell to form images, the image processing system detects the number of layers of the cathode sheet and the anode sheet of the battery cell, and the size value of the sheet dislocation between the cathode sheet and the anode sheet, and compares the standard value to determine whether the quality of the battery cell is qualified. The present application integrates the loading, turnover, transfer, detection, qualification determination, and unloading of the battery cell. The layout between the various devices is compact, the logistics efficiency of the battery cell is high, and the X-ray detection efficiency is high. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a battery cell;

[0025] Figure 2 It is a planar layout diagram of a battery cell vertical X-ray detection machine;

[0026] Figure 3 It is a structural diagram of a battery cell vertical X-ray detection machine;

[0027] Figure 4 It is a process flow diagram of a battery cell vertical X-ray detection machine;

[0028] Figure 5 Fig. 1 is a structural diagram of a gantry transport device;

[0029] Figure 6 Fig. 2 is a partial structural diagram of a transport mechanism;

[0030] Figure 7 Fig. 3 is a structural diagram of an electrode chip clamp;

[0031] Figure 8 Fig. 4 is a structural diagram of another view of the electrode chip clamp shown in Fig. 3; Figure 7

[0032] Fig. 5 is a structural diagram of a transport device and an X-ray detection device; Figure 9

[0033] Fig. 6 is a structural diagram of a transport device; Figure 10

[0034] Fig. 7 is a structural diagram of an electrode chip carrier; Figure 11

[0035] Fig. 8 is a partial sectional view of a transport device and an electrode chip carrier thereof; Figure 12

[0036] Fig. 9 is a structural diagram of an X-ray detection mechanism; Figure 13 Figure 4 Fig. 10 is a schematic diagram of the X-ray detection mechanism shown in Fig. 9 emitting X-rays to detect an electrode chip.

[0037] Figure 14 Figure 13 Fig. 11 is a schematic diagram of the X-ray detection mechanism shown in Fig. 9 emitting X-rays to detect an electrode chip.

[0038] Explanation of the drawings:

[0039] 10, electrode chip; 101, anode lug; 102, cathode lug;

[0040] 10000, electrode chip vertical X-ray detection line;

[0041] 100, machine table;

[0042] 200, loading robot;

[0043] 300, first variable distance device;

[0044] 400, first turnover transfer device;

[0045] 500, first linear transfer device;

[0046] ​​600, gantry loading device; 610, gantry; 611, gantry leg; 612, first gantry longitudinal beam; 613, second gantry longitudinal beam; 620, carrying linear module; 630, carrying slide group; 640, carrying mechanism; 641, translation slide plate; 642, lifting driving piece; 643, lifting slide plate; 644, slide rod; 645, slide sleeve; 646, battery cell clamping palm; 6461, battery cell clamping palm mounting plate; 6462, clamping palm opening and closing driving piece; 6463, clamping palm opening and closing slide group; 6464, clamping palm unit; 64641, clamping palm opening and closing slide frame; 64642, clamping palm buffer lifting spring; 64643, clamping palm buffer lifting slide group; 64644, clamping palm buffer lifting slide plate; 64645, clamping palm; 646451, clamping finger; 64646, clamping finger soft sleeve; 64647, pressing palm lifting driving piece; 64648, pressing palm; 6464a, clamping palm buffer lifting stroke switch; 6464b, clamping palm buffer lifting stroke switch sensing sheet; 6464c, clamping palm buffer lifting limiting fixed block; 6464d, clamping palm buffer lifting limiting movable block; 6465, clamping buffer; 6466, clamping buffer stop block;

[0047] 700, conveying device; 710, conveying support; 720, pull belt driving assembly; 721, rotary driving piece; 722, driving wheel; 723, driven wheel; 730, pull belt; 740, battery cell carrier; 741, battery cell carrier bottom beam; 742, battery cell carrier middle bracket; 743, battery cell carrier end bracket; 744, vertical roller; 745, horizontal roller; 750, battery cell carrier guide rail; 751, battery cell carrier guide groove; 760, material sensing;

[0048] 800, X-ray detection device; 810, X-direction translation driving assembly; 811, base; 812, X-direction translation driving piece; 813, X-direction translation slide group; 814, X-direction translation slide plate; 815, X-direction translation stroke switch sensing sheet; 816, X-direction translation stroke switch; 820, Y-direction translation driving assembly; 821, Y-direction translation driving piece; 822, Y-direction translation slide group; 823, Y-direction translation stroke switch sensing sheet; 824, Y-direction translation stroke switch; 830, Y-direction translation slide frame; 840, X-ray emitter Z-direction lifting driving assembly; 841, X-ray emitter Z-direction lifting linear module; 842, X-ray emitter Z-direction lifting slide frame; 850, X-ray emitter; 860, TDI Z-direction lifting driving assembly; 861, TDI Z-direction lifting linear module; 862, TDI Z-direction lifting slide frame; 870, TDI;

[0049] 900, gantry unloading device;

[0050] 1000, second linear transfer device;

[0051] 1100, second turnover transfer device;

[0052] 1200, second distance changing device;

[0053] 1300, unloading robot;

[0054] 20000, NG rejection device;

[0055] 1400, NG selection transfer mechanism;

[0056] 1500, NG carrying mechanism;

[0057] 1600, NG buffer mechanism. DETAILED DESCRIPTION

[0058] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application.

[0059] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application; the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two components. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0060] Please refer to Figure 2 and Figure 3 , a kind of battery vertical X-ray detection machine provided by the embodiment is shown, comprising:

[0061] Machine table 100 is provided with logistics channel for conveying and detecting battery from back to front;

[0062] A loading robot 200, two first distance changing devices 300, two first turnover transfer devices 400, two first linear transfer devices 500, a gantry loading device 600, two conveying devices 700, two X-ray detection devices 800, a gantry unloading device 900, two second linear transfer devices 1000, two second turnover transfer devices 1100, two second distance changing devices 1200 and a unloading robot 1300 fixed on the machine table in sequence along the logistics channel together constitute a battery cell vertical X-ray detection line 10000;

[0063] The loading robot 200 is used to carry the battery cell 10 from the external loading pull belt to the two first distance changing devices 300;

[0064] The two first distance changing devices 300 are arranged in parallel along the logistics direction and constitute the starting end of the two logistics channels, and are used to receive the multiple battery cells 10 carried by the loading robot 200 and open the distance between the multiple battery cells 10;

[0065] The two first turnover transfer devices 400 are located beside the two first distance changing devices 300 and extend forward, are used to respectively clamp the multiple battery cells 10 in the corresponding first distance changing device 300 once, and transfer and place the battery cells 10 into the corresponding first linear transfer device 500 after turning over 90°;

[0066] The two first linear transfer devices 500 are located beside the two first turnover transfer devices 400 and extend forward, and are used to transfer the multiple battery cells 10 to the gantry loading device 600 below, and simultaneously scan the codes;

[0067] The gantry loading device 600 longitudinally spans the two first linear transfer devices 500 and the two conveying devices 700, and is used to carry the battery cells 10 on the two first linear transfer devices 500 to the loading end of the two conveying devices 700;

[0068] The two conveying devices 700 are located beside the two first linear transfer devices 500 and extend forward, and are used to convey the battery cells 10 to the two X-ray detection devices 800, and convey the detected battery cells 10 to the gantry unloading device 900 below;

[0069] The two X-ray detection devices 800 are located beside the two conveying devices 700 and include the same image processing system, are used to vertically downwardly emit X-rays to cover and penetrate the two ends of the battery cell 10 to form images, the image processing system detects the number of layers of the cathode sheet and the anode sheet of the battery cell 10 and the sheet dislocation size value of the cathode sheet and the anode sheet through image analysis, and compares the standard value to determine whether the quality of the battery cell 10 is qualified; one X-ray detection device 800 and the corresponding one conveying device 700 constitute one battery cell X-ray detection station;

[0070] The gantry unloading device 900 is longitudinally arranged across the two conveying devices 700 and the two second linear transfer devices 1000, and is used to take the detected battery cell 10 from the unloading end of the two conveying devices 700 and transfer the battery cell 10 to the second linear transfer device 1000;

[0071] The two second linear transfer devices 1000 are arranged beside the two conveying devices 700 and extend forward, and are used to transfer the battery cell 10 to the second turnover transfer device 1100,

[0072] The two second turnover transfer devices 1100 are arranged beside the two second linear transfer devices 1000 and extend forward, and are used to extend into the second linear transfer device 1000 to clamp a plurality of battery cells 10 at a time, and then transfer and place the battery cells 10 after being turned over by 90° into the second pitch changing device 1200;

[0073] The two second pitch changing devices 1200 are arranged beside the two second turnover transfer devices 1100, and are used to receive the plurality of battery cells 10 carried by the second turnover transfer device 1100 and fold the pitch of the plurality of battery cells 10;

[0074] The unloading robot 1300 is used to carry the battery cell 10 for unloading;

[0075] The NG rejection device 20000 is fixed at the front end of the machine table 100 and is located outside the end of the logistics channel, and includes one or more NG selection and transfer mechanisms 1400, an NG carrying mechanism 1500 and an NG buffer mechanism 1600; the one or more NG selection and transfer mechanisms 1400 are connected to the one or more unloading robots 1300; the NG carrying mechanism 1500 is used to carry the NG battery cell on the NG selection and transfer mechanism 1400 to the NG buffer mechanism 1600, and is used to carry the OK battery cell to the external unloading pull belt.

[0076] Please refer to Figure 4 The embodiment integrates the feeding, turnover, transfer, detection and qualification determination, and unloading of the battery cell, and the layout between the various devices is compact, the logistics efficiency of the battery cell is high, and the X-ray detection efficiency is high. Specifically, one or more battery cell vertical X-ray detection lines 10000 can be arranged on the same machine table 100; the plurality of battery cell vertical X-ray detection lines 10000 have multiple times of production capacity.

[0077] Specifically, please refer to Figure 5 The gantry feeding device 600 includes a gantry 610, a carrying linear module 620, a carrying slide group 630 and a carrying mechanism 640.

[0078] The gantry 610 comprises a gantry leg 611, a first gantry longitudinal beam 612 and a second gantry longitudinal beam 613. The gantry leg 611 is fixed to the machine table 100, and the first and second gantry longitudinal beams 612 and 613 are horizontally and longitudinally parallelly separated and fixed on the gantry leg 611.

[0079] The carrying linear module 620 is horizontally fixed on the top of the first gantry longitudinal beam 612 along the linear direction of the first gantry longitudinal beam 612. The carrying linear module 620 is used to drive the carrying mechanism 640 to longitudinally carry the battery cell 10 along the linear direction of the slide rail of the carrying slide group 630.

[0080] Specifically, the slide rail of the carrying slide group 630 is horizontally fixed on the top of the second gantry longitudinal beam 613 along the linear direction of the second gantry longitudinal beam 613, which is different from the second gantry longitudinal beam 612 of the carrying linear module 620.

[0081] The carrying mechanism 640 is transversely arranged on the first and second gantry longitudinal beams 612 and 613, and is fixed at the output end of the carrying linear module 620 and the slide block of the carrying slide group 630 respectively.

[0082] Please refer to Figure 6 to Figure 8 The carrying mechanism 640 comprises a translation slide plate 641, a lifting driving member 642, a lifting slide plate 643, a slide rod 644, a slide sleeve 645 and a plurality of battery cell clamping palms 646.

[0083] The translation slide plate 641 is fixed on the output end of the carrying linear module 620 and the slide block of the carrying slide group 630, the lifting driving member 642 is vertically fixed on the translation slide plate 641, the lifting slide plate 643 is fixed on the output end of the lifting driving member 642, and the plurality of battery cell clamping palms 646 are horizontally and spacedly fixed on the lifting slide plate 643. The lifting driving member 642 is used to drive the plurality of battery cell clamping palms 646 to lift, and the battery cell clamping palms 646 are used to clamp the battery cell 10.

[0084] The slide sleeve 645 is vertically fixed on the translation slide plate 641, the slide rod 644 is movably arranged in the slide sleeve 645, the bottom end of the slide rod 644 is fixedly connected with the lifting slide plate 643, and the slide rod 644 and the slide sleeve 645 are combined to stabilize the lifting of the lifting slide plate 643.

[0085] The cell clamping palm 646 comprises a cell clamping palm mounting plate 6461, a clamping palm opening and closing driving element 6462, a clamping palm opening and closing sliding group 6463, and two clamping palm units 6464. The cell clamping palm mounting plate 6461 is fixed on the lifting sliding plate 6643, and the clamping palm opening and closing driving element 6462 and the sliding rails of the clamping palm opening and closing sliding group 6463 are fixed on the cell clamping palm mounting plate 6461. The two clamping palm units 6464 are respectively and symmetrically fixed on the two output ends of the clamping palm opening and closing driving element 6462 and the sliding blocks of the clamping palm opening and closing sliding group 6463, and the clamping palm opening and closing driving element 6462 is used to drive the two clamping palm units 6464 to clamp the cell 10.

[0086] The clamping palm unit 6464 comprises a clamping palm opening and closing sliding carriage 64641, a clamping palm buffer lifting spring 64642, a clamping palm buffer lifting sliding group 64643, a clamping palm buffer lifting sliding plate 64644, a clamping palm 64645, and a clamping finger soft sleeve 64646. The clamping palm opening and closing sliding carriage 64641 is fixed on one output end of the clamping palm opening and closing driving element 6462 and the sliding block of the clamping palm opening and closing sliding group 6463. The clamping palm buffer lifting spring 64642 is fixed below the clamping palm opening and closing sliding carriage 64641. The sliding rails of the clamping palm buffer lifting sliding group 64643 are vertically fixed on the clamping palm opening and closing sliding carriage 64641. The clamping palm buffer lifting sliding plate 64644 is fixed on the clamping palm buffer lifting spring 64642 and the sliding block of the clamping palm buffer lifting sliding group 64643. The clamping palm 64645 is fixed on the clamping palm buffer lifting sliding plate 64644. The clamping palm 64645 comprises one or more clamping fingers 646451. The clamping finger soft sleeve 64646 is fixedly sleeved on the clamping finger 646451. The two clamping palms 64645 are used to clamp the lower large face and the two side faces of the cell 10.

[0087] The clamping palm unit 6464 further comprises a pressing palm lifting driving element 64647 and a pressing palm 64648. The pressing palm lifting driving element 64647 is fixed vertically downward in the driving direction on the clamping palm buffer lifting sliding plate 64644. The pressing palm 64648 is fixed on the output end of the pressing palm lifting driving element 64647. The two pressing palm lifting driving elements 64647 are respectively used to drive the two pressing palms 64648 to press and hold the two edges of the upper large face of the cell 10 clamped by the two clamping palms 64645.

[0088] Further, the clamping palm unit 6464 further comprises a clamping palm buffer lifting stroke switch 6464a and a clamping palm buffer lifting stroke switch sensing sheet 6464b. The clamping palm buffer lifting stroke switch 6464a is fixed on the clamping palm opening and closing sliding carriage 64641. The clamping palm buffer lifting stroke switch sensing sheet 6464b is fixed on the clamping palm buffer lifting sliding plate 64644. When the clamping palm buffer lifting stroke switch sensing sheet 6464b is lifted to leave the clamping palm buffer lifting stroke switch 6464a, the clamping palm buffer lifting stroke switch 6464a is triggered, and the clamping palm buffer lifting stroke switch 6464a sends a signal to control the carrying linear module 620 to stop moving.

[0089] Further, the palm clamping unit 6464 further comprises a palm clamping buffer lifting limiting fixed block 6464c and a palm clamping buffer lifting limiting movable block 6464d. The palm clamping buffer lifting limiting fixed block 6464c is fixed on the palm clamping opening and closing slide 64641, and the palm clamping buffer lifting limiting movable block 6464d is fixed on the palm clamping buffer lifting slide plate 64644. When the palm clamping buffer lifting limiting movable block 6464d descends and collides with the palm clamping buffer lifting limiting fixed block 6464c, the palm clamping 64645 is prevented from continuing to descend.

[0090] Further, the battery cell clamping palm 646 further comprises a clamping buffer 6465 and a clamping buffer stop block 6466, which are respectively fixed in corresponding positions in the two palm clamping opening and closing slides 64641 of the two palm clamping units 6464. The clamping buffer 6465 and the clamping buffer stop block 6466 are used to buffer when clamping the battery cell 10 to prevent clamping impact from damaging the battery cell 10.

[0091] The gantry feeding device 600 of the embodiment can drive the carrying mechanism 640 to move horizontally to carry the battery cell 10. The gantry carrying device can stably and reliably carry the battery cell 10, and the carrying efficiency is high.

[0092] The gantry feeding device 900 of the embodiment and the gantry feeding device 600 are the same in structure, and will not be described here.

[0093] Please refer to Figure 9 and Figure 10 The conveying device 700 comprises a conveying support 710, a pull belt driving assembly 720, a pull belt 730, a plurality of battery cell carriers 740, two battery cell carrier guide rails 750, and a plurality of material sensors 760.

[0094] The conveying support 710 is fixed on the machine table 100, the pull belt driving assembly 720 is fixed on the conveying support 710, the pull belt 730 is wound on the output end of the pull belt driving assembly 720, the plurality of battery cell carriers 740 are fixed on the pull belt 730 and are distributed at equal intervals along the entire length of the pull belt 730, the pull belt 730 with the plurality of battery cell carriers 740 constitutes a battery cell conveying channel, and the pull belt driving assembly 720 can drive the pull belt 730 with the plurality of battery cell carriers 740 to move in a loop to convey the battery cell 10 and return the battery cell carriers 740.

[0095] The pull belt driving assembly 720 includes a rotating driving member 721, a driving wheel 722 and a driven wheel 723. The rotating driving member 721 is fixed at one end of the conveying support 710. The driving wheel 722 is fixed on the output shaft of the rotating driving member 721. The driven wheel 723 is installed at the other end of the conveying support 710. The driving wheel 722 and the driven wheel 723 are used for the pull belt 730 to be wrapped thereon.

[0096] Please refer to Figure 11 and Figure 12 The battery cell carrier 740 includes a battery cell carrier bottom beam 741, a battery cell carrier middle bracket 742, two battery cell carrier end brackets 743, four vertical rollers 744 and four horizontal rollers 745. The battery cell carrier bottom beam 741 is fixed on the pull belt 730. The battery cell carrier middle bracket 742 is fixed at the middle of the battery cell carrier bottom beam 741. The two battery cell carrier end brackets 743 are fixed at the two ends of the battery cell carrier bottom beam 741. The battery cell carrier middle bracket 742 and the two battery cell carrier end brackets 743 form a battery cell 10 loading port. The horizontal rollers 745 are fixed at the two ends of the battery cell carrier bottom beam 741, two at each end. The vertical rollers 744 are fixed at the two ends of the battery cell carrier bottom beam 741, two at each end. The horizontal rollers 745 are used to be embedded in the battery cell carrier guide groove 751 of the battery cell carrier guide rail 750. The vertical rollers 744 are used to be rolled on the outer surface of the groove of the battery cell carrier guide groove 751. The horizontal rollers 745 and the vertical rollers 744 are used to cooperate with the battery cell carrier guide rail 750 to guide and stabilize the movement of the battery cell carrier 740.

[0097] The two battery cell carrier guide rails 750 are fixed on the two inner sides of the conveying support 710, respectively located at the two sides of the battery cell conveying channel. The battery cell carrier guide rail 750 is provided with a battery cell carrier guide groove 751 on the inner side. The groove of the battery cell carrier guide groove 751 faces the battery cell conveying channel and can hold one end of the battery cell carrier 740.

[0098] The plurality of sensors 760 are fixed on the two sides of the two ends of the conveying support 710, respectively located at the two sides of the two ends of the battery cell conveying channel, and used to detect whether the battery cell 10 is loaded on the battery cell carrier 740.

[0099] The X-ray detection device 800 includes two X-ray detection mechanisms, both of which are fixed on the machine table 100 and symmetrically arranged at the two sides of the battery cell conveying channel of the conveying device 700. The two X-ray detection mechanisms and the corresponding battery cell conveying channel form a battery cell X-ray detection station.

[0100] Please refer to Figure 13Each of the X-ray detection mechanisms comprises an X-direction translation driving assembly 810, a Y-direction translation driving assembly 820, a Y-direction translation carriage 830, an X-ray emitter Z-direction lifting driving assembly 840, an X-ray emitter 850, a TDI Z-direction lifting driving assembly 860 and a TDI 870.

[0101] The X-direction translation driving assembly 810 is horizontally fixed on the machine table 100, the Y-direction translation driving assembly 820 is horizontally fixed on the output end of the X-direction translation driving assembly 810, and the Y-direction translation carriage 830 is fixed on the output end of the Y-direction translation driving assembly 820; the X-ray emitter 850 and the TDI 870 are located on the same vertical line and are vertically fixed on the upper and lower parts of the same side of the Y-direction translation carriage 830 respectively, and the X-ray emitter 850 and the TDI 870 are apart from each other by a preset distance.

[0102] Please refer to Figure 14 The two X-ray detection mechanisms are used to make the two X-ray emitters 850 vertically downward emit X-rays to cover and penetrate the two ends of the battery cell 10 respectively, and make the two TDIs 870 receive the X-rays penetrating the two ends of the battery cell 10 to form images respectively, and the two TDIs 870 are connected and transmit the images to the image processing system.

[0103] Specifically, the X-direction translation driving assembly 810 comprises a base 811, an X-direction translation driving member 812, an X-direction translation sliding group 813, an X-direction translation sliding plate 814, an X-direction translation stroke switch sensing sheet 815 and a plurality of X-direction translation stroke switches 816. The base 811 is fixed on the machine table 100, the X-direction translation driving member 812 and the slide rail of the X-direction translation sliding group 813 are fixed on the base 811 along the X-direction, the X-direction translation sliding plate 814 is fixed on the output end of the X-direction translation driving member 812 and the sliding block of the X-direction translation sliding group 813, the X-direction translation stroke switch sensing sheet 815 is fixed on the X-direction translation sliding plate 814, and the plurality of X-direction translation stroke switches 816 are fixed on the base 811 and are distributed along the length direction of the slide rail of the X-direction translation sliding group 813 and are aligned with the X-direction translation stroke switch sensing sheet 815; the X-direction translation driving member 812 is used to drive the Y-direction translation driving assembly 820 to move the Y-direction translation carriage 830, the X-ray emitter 850 and the TDI 870 along the X-direction.

[0104] The Y-direction translation driving assembly 820 comprises a Y-direction translation driving member 821, a Y-direction translation sliding group 822, a Y-direction translation stroke switch sensing sheet 823, and a plurality of Y-direction translation stroke switches 824. The Y-direction translation driving member 821 and the slide rails of the Y-direction translation sliding group 822 are both fixed on the X-direction translation sliding plate 814 in the Y direction, the output end of the Y-direction translation driving member 821 and the slider of the Y-direction translation sliding group 822 are provided for fixing the Y-direction translation sliding frame 830; the Y-direction translation stroke switch sensing sheet 823 is fixed on the Y-direction translation sliding frame 830, the plurality of Y-direction translation stroke switches 824 are fixed on the X-direction translation sliding plate 814 and are aligned along the length direction of the slide rails of the Y-direction translation sliding group 822 and are distributed at intervals between the Y-direction translation stroke switch sensing sheets 823; the Y-direction translation driving member 821 is used for driving the Y-direction translation sliding frame 830 to move the X-ray emitter 850 and the TDI 870 in the Y direction.

[0105] The X-ray emitter Z-direction lifting driving assembly 840 is fixed on the upper part of the side of the Y-direction translation sliding frame 830. Specifically, the X-ray emitter Z-direction lifting driving assembly 840 comprises an X-ray emitter Z-direction lifting linear module 841 and an X-ray emitter Z-direction lifting sliding frame 842; the X-ray emitter Z-direction lifting linear module 841 is vertically fixed on the side of the upper part of the Y-direction translation sliding frame 830 facing the TDI 870, the X-ray emitter 850 is fixed on the X-ray emitter Z-direction lifting sliding frame 842, and the X-ray emitter 850 is located directly above the TDI 870 at a preset distance adjustable within a range from the TDI 870, the X-ray emitter Z-direction lifting linear module 841 is used for driving the X-ray emitter Z-direction lifting sliding frame 842 to lift and adjust the range size of the X-ray irradiated on the battery cell 10 with the X-ray emitter 850.

[0106] The TDI Z-direction lifting driving assembly 860 comprises a TDI Z-direction lifting linear module 861 and a TDI Z-direction lifting sliding frame 862; the TDI Z-direction lifting linear module 861 is fixed on the side of the lower part of the Y-direction translation sliding frame 830 facing the X-ray emitter 850, the TDI 870 is fixed on the TDI Z-direction lifting sliding frame 862, and the X-ray emitter 850 is located directly below the TDI 870 at a preset distance adjustable within a range from the X-ray emitter 850, the TDI Z-direction lifting linear module 861 is used for driving the TDI Z-direction lifting sliding frame 862 to lift the TDI 870 to adjust the range size of the X-ray irradiated on the TDI 870.

[0107] The above only describes the preferred embodiments of the present application and is not used to limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A vertical X-ray inspection machine for battery cells, characterized in that, include: The machine is equipped with a logistics channel for conveying and testing battery cells from back to front; A feeding robot, two first pitch-changing devices, two first flipping and transferring devices, two first linear transfer devices, a gantry feeding device, two conveying devices, two X-ray detection devices, a gantry unloading device, two second linear transfer devices, two second flipping and transferring devices, two second pitch-changing devices, and an unloading robot are sequentially fixed on the machine platform along the logistics channel to form a vertical X-ray detection line for battery cells. The loading robot is used to transport battery cells from the external loading conveyor belt to the two first pitch-changing devices; The two first pitch-changing devices are arranged parallel to each other along the logistics direction to form the beginning of the two logistics channels, which are used to receive multiple battery cells transported by the loading robot and open the spacing between the multiple battery cells. The two first flipping and transferring devices are located next to the two first pitch devices and extend forward, respectively, to insert into the corresponding first pitch device to clamp multiple cells at once, and to transfer the cells into the corresponding first linear transfer device after flipping them 90°. Two first linear transfer devices are located next to two first flipping transfer devices and extend forward to transfer multiple battery cells to the gantry loading device while simultaneously scanning the barcode. The gantry loading device spans two of the first linear transfer devices and two of the conveying devices, and is used to transport the battery cells on the two first linear transfer devices to the loading end of the two conveying devices; The two conveying devices are located next to and extend forward from the two first linear transfer devices for conveying the battery cells to the two X-ray inspection devices and conveying the inspected battery cells to the gantry unloading device. The two X-ray inspection devices are located next to the two conveying devices and include the same image processing system. They emit X-rays vertically downwards to cover and image both ends of the battery cell. The image processing system analyzes the images to detect the number of layers of the cathode and anode plates in the battery cell, as well as the misalignment size between the cathode and anode plates, and compares these values ​​with standard values ​​to determine whether the battery cell is of acceptable quality. One X-ray inspection device and its corresponding conveying device constitute a battery cell X-ray inspection station. The gantry unloading device spans two of the conveying devices and two of the second linear transfer devices, and is used to remove the tested battery cells from the unloading ends of the two conveying devices and transfer them to the second linear transfer device; Two second linear transfer devices are located beside and extend forward from the two conveying devices for transferring the battery cells under the second flipping transfer devices. The two second flipping transfer devices are located next to the two second linear transfer devices and extend forward, for inserting into the second linear transfer devices to clamp multiple battery cells at once, and then transferring the battery cells into the second pitch device after flipping them 90°. The two second pitch-changing devices are located next to the two second flip-over and transfer devices, and are used to receive multiple battery cells transported by the second flip-over and transfer devices and to close the spacing between the multiple battery cells. The unloading robot is used to handle and unload battery cells. The X-ray inspection device includes two X-ray inspection mechanisms, both of which are fixed on the machine base and symmetrically arranged on both sides of the cell conveying channel of the conveying device. The two X-ray inspection mechanisms and the corresponding cell conveying channels form the cell X-ray inspection station. The X-ray detection mechanism includes an X-axis translation drive assembly, a Y-axis translation drive assembly, a Y-axis translation carriage, an X-ray emitter, and a TDI (Transient Induction Device). The X-axis translation drive assembly is horizontally fixed to the machine base, the Y-axis translation drive assembly is horizontally fixed to the output end of the X-axis translation drive assembly, and the Y-axis translation carriage is fixed to the output end of the Y-axis translation drive assembly. The X-ray emitter and the TDI are located on the same vertical line and are vertically fixed to the upper and lower parts of the same side of the Y-axis translation carriage, respectively. Furthermore, the X-ray emitter and the TDI are separated by a preset distance. The two X-ray emitters are used to emit X-rays vertically downwards to cover and pass through both ends of the battery cell, and the two TDIs are used to receive the X-rays passing through both ends of the battery cell for imaging, and to connect and transmit the images to the image processing system.

2. The vertical X-ray inspection machine for battery cells as described in claim 1, characterized in that, Both the gantry loading device and the gantry unloading device include a gantry frame, a conveying linear module, a conveying slide block, and a conveying mechanism. The gantry loading device and the gantry unloading device are used to convey battery cells. The gantry includes gantry legs, a first gantry longitudinal beam, and a second gantry longitudinal beam. The gantry legs are fixed to the machine platform, and the first gantry longitudinal beam and the second gantry longitudinal beam are horizontally and longitudinally parallel and fixed to the gantry legs. The conveying linear module is horizontally fixed on the top of the first gantry longitudinal beam or the top of the second gantry longitudinal beam along the straight direction of the first gantry longitudinal beam or the second gantry longitudinal beam; The slide rail of the transport slide block is horizontally fixed on the top of the second gantry longitudinal beam or the top of the first gantry longitudinal beam, which is a beam different from that of the transport linear module, along the straight direction of the second gantry longitudinal beam or the first gantry longitudinal beam. The transport mechanism is horizontally mounted across the first gantry longitudinal beam and the second gantry longitudinal beam, with its two ends fixed to the output end of the transport linear module and the slider of the transport slide block, respectively. The linear transport module is used to drive the transport mechanism to transport the battery cells longitudinally along the linear direction of the slide rail of the transport slide block.

3. The vertical X-ray inspection machine for battery cells as described in claim 1, characterized in that, The conveying device includes a conveying bracket, a belt drive assembly, a belt, and multiple battery cell carriers. The conveying bracket is fixed to the machine base, the belt drive assembly is fixed to the conveying bracket, the belt is wound around the output end of the belt drive assembly, and the multiple battery cell carriers are fixed to the belt and distributed at equal intervals along the entire length of the belt. The belt carries the multiple battery cell carriers to form a battery cell conveying channel. The belt drive assembly is used to drive the belt to carry the multiple battery cell carriers in a cyclical movement to convey and return the battery cells to the battery cell carriers.

4. The vertical X-ray inspection machine for battery cells as described in claim 3, characterized in that, The conveying device also includes two battery cell carrier guide rails, which are fixed on the two inner sides of the conveying bracket and located on both sides of the battery cell conveying channel. The inner side of the battery cell carrier guide rail is provided with a battery cell carrier guide groove, and the opening of the battery cell carrier guide groove faces the battery cell conveying channel and can fit one end of the battery cell carrier.

5. The vertical X-ray inspection machine for battery cells as described in claim 3, characterized in that, The battery cell carrier includes a base beam, a middle bracket, two end brackets, four vertical rollers, and four horizontal rollers. The base beam is fixed to the pull strap. The middle bracket is fixed to the middle of the base beam. The two end brackets are fixed to both ends of the base beam. The middle bracket and the two end brackets form the battery cell inlet. Two horizontal rollers are fixed to the outside of both ends of the base beam. Two vertical rollers are fixed to the bottom of both ends of the base beam. The horizontal rollers are used to embed into the guide groove of the battery cell carrier guide rail. The vertical rollers are used to roll against the outer surface of the guide groove. The horizontal and vertical rollers cooperate with the guide rail to guide and stabilize the movement of the battery cell carrier.

6. The vertical X-ray inspection machine for battery cells as described in claim 1, characterized in that, The X-axis translation drive assembly includes a base, an X-axis translation drive element, an X-axis translation slide block, an X-axis translation slide plate, an X-axis translation limit switch sensor, and multiple X-axis translation limit switches. The base is fixed to the machine base. The slide rails of the X-axis translation drive element and the X-axis translation slide block are both fixed to the base in the X direction. The X-axis translation slide plate is fixed to the output end of the X-axis translation drive element and the slider of the X-axis translation slide block. The X-axis translation limit switch sensor is fixed to the X-axis translation slide plate. Multiple X-axis translation limit switches are fixed to the base and are spaced apart and aligned along the length of the slide rail of the X-axis translation slide block. The X-axis translation drive element drives the Y-axis translation drive assembly to move the Y-axis translation carriage, the X-ray emitter, and the TDI in the X direction.

7. The vertical X-ray inspection machine for battery cells as described in claim 1, characterized in that, The Y-axis translation drive assembly includes a Y-axis translation drive, a Y-axis translation slide block, a Y-axis translation limit switch sensor, and multiple Y-axis translation limit switches. The slide rails of the Y-axis translation drive and the Y-axis translation slide block are both fixed to the X-axis translation slide block in the Y direction. The output end of the Y-axis translation drive and the slider of the Y-axis translation slide block are used to fix the Y-axis translation carriage. The Y-axis translation limit switch sensor is fixed to the Y-axis translation carriage, and multiple Y-axis translation limit switches are fixed to the X-axis translation slide block and are spaced apart and aligned along the length of the slide rail of the Y-axis translation slide block. The Y-axis translation drive is used to drive the Y-axis translation carriage to move the X-ray emitter and the TDI in the Y direction.

8. The vertical X-ray inspection machine for battery cells as described in claim 1, characterized in that, The X-ray detection mechanism further includes an X-ray emitter Z-axis lifting drive assembly and a TDI Z-axis lifting drive assembly. The X-ray emitter Z-axis lifting drive assembly is fixed to the upper part of the side of the Y-axis translational slide. The X-ray emitter Z-axis lifting drive assembly includes an X-ray emitter Z-axis lifting linear module and an X-ray emitter Z-axis lifting slide. The X-ray emitter Z-axis lifting linear module is vertically fixed to the upper part of the Y-axis translational slide facing the TDI. The X-ray emitter is fixed on the X-ray emitter Z-axis lifting slide, and the X-ray emitter is located directly above the TDI, at a preset distance from the TDI within an adjustable range. The X-ray emitter Z-axis lifting linear module is used to drive the X-ray emitter Z-axis lifting slide to adjust the range of X-rays irradiating the cell by raising and lowering the X-ray emitter. The TDI Z-axis lifting drive assembly includes a TDI Z-axis lifting linear module and a TDI Z-axis lifting slide. The TDI... The Z-axis lifting linear module is fixed on the side of the lower part of the Y-axis translational slide facing the X-ray emitter. The TDI is fixed on the TDI Z-axis lifting slide, and the TDI is located directly below the X-ray emitter at a preset distance from the X-ray emitter within an adjustable range. The TDI Z-axis lifting linear module is used to drive the TDI Z-axis lifting slide to lift and lower the TDI, so as to adjust the size of the range of X-rays irradiating the TDI.

9. The cell vertical X-ray inspection machine as described in any one of claims 1 to 8, characterized in that, One or more vertical X-ray inspection lines for battery cells are set up on the same machine platform; each vertical X-ray inspection line for battery cells includes: a loading robot, two first pitch-changing devices, two first flipping and transferring devices, two first linear transfer devices, a gantry loading device, two conveying devices, two X-ray inspection devices, a gantry unloading device, two second linear transfer devices, two second flipping and transferring devices, two second pitch-changing devices, and a unloading robot, which are sequentially fixed on the machine platform along the logistics channel. Multiple vertical X-ray inspection lines for battery cells have multiple times the production capacity.

10. The vertical X-ray inspection machine for battery cells as described in claim 9, characterized in that, It also includes an NG rejection device, which is fixed at the front end of the machine and located outside the end of the logistics channel. The NG rejection device includes one or more NG picking and transferring mechanisms, NG handling mechanisms and NG buffering mechanisms. One or more of the NG selection and transfer mechanisms are docked with one or more of the unloading robots; the NG transport mechanism is used to transport NG cells on the NG selection and transfer mechanism to the NG buffer mechanism, and to transport OK cells to the external unloading conveyor belt.

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