Pole piece detection device

Abstract

The present application provides a pole piece detection device. The pole piece detection device includes a base plate, a light source, and an image acquisition device. A groove is provided on one side surface of the base plate, and a cover plate is provided at the opening of the groove, which is used to support the pole piece; the light source is provided in the groove, which is used to illuminate the positioning detection area; the cover plate can allow the light emitted by the light source to pass through; the image acquisition device is provided on the side of the cover plate away from the light source, which is used to obtain image information of the pole piece located in the positioning detection area by receiving light passing through the cover plate. The pole piece detection device can effectively avoid the problem of blurred imaging at the edge of the pole piece, thereby effectively improving the accuracy of the image information of the pole piece obtained, and further greatly improving the deviation correction accuracy of the pole piece.

Description

Technical Field

[0001] The present invention belongs to the technical field of battery processing, and in particular relates to a pole piece detection device. Background Art

[0002] During battery processing, a stacking device is typically used to transport the electrodes to a stacking table for stacking. Before transferring the electrodes to the stacking table, it is often necessary to capture images of the electrodes to obtain image information. This information can then be used to correct the position of the electrodes.

[0003] Currently, a light source and a camera are generally placed on one side of the pole piece to illuminate the pole piece surface and then photograph the pole piece surface with the camera to obtain an image of the pole piece. However, since the pole piece is photographed from the front, the edge of the pole piece is more likely to be blurred, resulting in a low accuracy of the obtained pole piece image information, which in turn affects the accuracy of the pole piece correction. Summary of the Invention

[0004] The present application provides a pole piece detection device that can effectively avoid the problem of blurred imaging at the edge of the pole piece.

[0005] To solve the above technical problems, the present application adopts a technical solution: providing a pole piece detection device, which includes a base plate, a light source, and an image detection device. The base plate has a groove on one side, and a cover plate is provided at the opening of the groove to support the pole piece; the light source is disposed in the groove to illuminate the positioning detection area; the cover plate allows light emitted by the light source to pass through; and the image acquisition device is disposed on the side of the groove away from the light source to acquire image information of the pole piece in the positioning detection area by receiving light transmitted through the cover plate.

[0006] Optionally, a first adsorption hole is provided on the groove; the groove is used to be connected to a vacuum pumping device so that when the vacuum pumping device is working, an adsorption force is generated on the electrode through the first adsorption hole.

[0007] Optionally, the groove is a transparent plate.

[0008] Optionally, a conveyor belt is also included, which is used to directly support and transport the pole piece; the conveyor belt is wound around the base plate and can run along the length direction of the base plate to transport the pole piece to the top of the groove.

[0009] Optionally, a plurality of second adsorption holes are provided on the bottom plate, and a third adsorption hole connected to the second adsorption holes is provided on the conveyor belt. The second adsorption holes are used to connect to the vacuum device so that the electrode is adsorbed on the surface of the conveyor belt when the vacuum device is working.

[0010] Optionally, the conveyor belt is a transparent belt.

[0011] Optionally, a detection mark is provided on the conveyor belt along the conveying direction of the conveyor belt; the pole piece detection device also includes a conveyor belt drive mechanism, a first detection member and a control system; the conveyor belt drive mechanism is used to drive the conveyor belt to operate; the first detection member is set to correspond to the first position, and is used to detect whether the detection mark passes through the first position; wherein the first position is located on the operating trajectory of the detection mark; the control system is connected to the first detection member, and is used to control the start and stop of the conveyor belt according to the detection result of the first detection member.

[0012] Optionally, a stacking detection component is also included; the stacking detection component is set to correspond to the second position and is connected to the control system for detecting whether there are multiple pole pieces on the conveyor belt passing through the second position; wherein the second position is located on the moving trajectory of the pole piece.

[0013] Optionally, the length and width of the groove are both greater than the length and width of the pole piece.

[0014] Optionally, a correction component is also included, which includes a grabbing piece; the grabbing piece is connected to the image acquisition device, and is used to grab the pole piece in the positioning detection area, correct the position of the pole piece according to the image information obtained by the image acquisition device, and transport it to the stacking station.

[0015] Optionally, the deviation correction component further includes a vacuum breaking component, which is connected to the groove and is used to provide gas to the surface of the electrode facing the groove when the grasping member grasps the electrode in the positioning detection area.

[0016] Optionally, the gripping member is a robot or a robotic arm; and / or the gripping member performs a deviation correction action during the process of transporting the electrode.

[0017] The pole piece detection device provided by the present application is provided with a base plate, a groove is opened on one side surface of the base plate, and a cover plate is provided at the opening of the groove to support the pole piece located above it; at the same time, a light source is provided in the groove so that the light source illuminates the positioning detection area; in addition, an image acquisition device is provided on the side of the cover plate away from the light source, so that when the light source illuminates the positioning detection area, the image of the pole piece on the cover plate located in the positioning detection area is collected by the image acquisition device, and then the image information of the pole piece is obtained based on the image; wherein, since the light source and the image acquisition device are respectively provided on opposite sides of the cover plate, when the pole piece is located on the cover plate of the positioning detection area, the light source can illuminate the pole piece from the side surface of the pole piece close to the base plate, and the image acquisition device can collect the image of the pole piece from the side surface of the pole piece away from the base plate, so that not only can the image information of the pole piece be obtained based on the image, but also the problem of imaging blur at the edge of the pole piece can be effectively avoided, so as to effectively improve the accuracy of the image information of the pole piece obtained, thereby greatly improving the correction accuracy of the pole piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive work, among which:

[0019] Figure 1 A front view of a pole piece detection device provided in one embodiment of the present application;

[0020] Figure 2 for Figure 1 A top view of the pole piece inspection device shown, wherein the conveyor belt is not shown;

[0021] Figure 3 for Figure 2 Cross-sectional view along the BB direction;

[0022] Figure 4 for Figure 1 A schematic structural diagram of a conveyor belt of a pole piece detection device shown;

[0023] Figure 5 This is a schematic diagram of the operation of the pole piece detection device and the lamination station provided in one embodiment of the present application, in which the conveyor belt is not shown. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0025] The terms "first," "second," and "third" in this application are used only for descriptive purposes and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of such features. In the description of this application, "multiple" means at least two, for example, two, three, etc., unless otherwise specifically defined. All directional indications in the embodiments of this application (such as up, down, left, right, front, back...) are only used to explain the relative positional relationship, movement, etc. between the components under a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications also change accordingly. In addition, the terms "including" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products, or devices.

[0026] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0027] The present application is described in detail below with reference to the accompanying drawings and embodiments.

[0028] See also Figures 1 to 4 ,in, Figure 1 A front view of a pole piece detection device provided in one embodiment of the present application; Figure 2 for Figure 1 A top view of the pole piece inspection device shown, wherein the conveyor belt is not shown; Figure 3 for Figure 2 Cross-sectional view along the BB direction; Figure 4 for Figure 1 Schematic diagram of the structure of the conveyor belt of the pole piece detection device shown.

[0029] In this example, see Figure 1 The pole piece detection device 50 includes a base plate 51 , a light source 52 and an image acquisition device 53 .

[0030] A groove 511 is provided on the surface of the bottom plate 51 on one side facing the pole piece 1, and a cover plate 512 is provided at the opening of the groove 511 to support the pole piece 1 passing through the groove 511. A light source 52 is provided in the groove 511 to illuminate the positioning detection area C. The cover plate 512 can allow the light emitted by the light source 52 to pass through. It should be noted that the support of the pole piece 1 by the cover plate 512 can be direct support or indirect support. For example, the cover plate 512 can directly support the conveyor belt 54 described below, and the conveyor belt 54 directly supports the pole piece 1, thereby realizing indirect support of the pole piece 1 by the cover plate 512.

[0031] In one embodiment, the light source 52 can be completely contained within the groove 511 to prevent the light source 52 from affecting the operation of the conveyor belt 54. In a specific implementation, one light source 52 is disposed in the groove 511, specifically positioned in the exact center of the groove 511, to uniformly illuminate the pole piece 1 passing through the positioning detection area C. Of course, in other embodiments, two or three light sources 52 may also be disposed in the groove 511, and this embodiment is not limited thereto.

[0032] Specifically, the length and width of the groove 511 are both greater than the length and width of the pole piece 1, so that a single pole piece 1 can fall completely onto the cover plate 512, so that all information of the pole piece 1 can be collected; in one embodiment, the groove 511 can be a rectangular groove or a circular groove, and this embodiment does not impose any restrictions on this, as long as a light source 52 can be set.

[0033] In one embodiment, the groove 511 is used to communicate with the vacuum device through the vacuum connector 515, and the cover plate 512 is provided with a first adsorption hole 5121 to generate adsorption force on the electrode 1 through the first adsorption hole 5121 when the vacuum device is working.

[0034] In one embodiment, the aforementioned vacuuming device may be a vacuum pump; the first adsorption holes 5121 may be strip-shaped holes, and the extending direction of the strip-shaped holes is parallel to the length direction A of the bottom plate 51 .

[0035] In a specific implementation, the light source 52 may be a light source that emits visible light (e.g., white, blue, red light, etc.), and the cover plate 512 may be a transparent plate to increase the penetrability of the light emitted by the light source 52. In other embodiments, the light source 52 may be a light source that only emits specific light (e.g., infrared or ultraviolet light), and the cover plate 512 may only allow this specific light (e.g., infrared or ultraviolet light) to pass through, and the corresponding image acquisition device 53 may capture an image of this specific light.

[0036] Among them, the image acquisition device 53 is arranged on the side of the cover plate 512 away from the light source 52, and is fixedly arranged on the base plate 51, so that when the light source 52 illuminates the positioning detection area C, the image of the pole piece 1 located in the positioning detection area C is collected by receiving the light passing through the cover plate 512 and the image information of the pole piece 1 is obtained based on the image; it can be understood that when the pole piece 1 is located in the positioning detection area C, the light source 52 illuminates the pole piece 1 from the side of the pole piece 1 close to the base plate 51, and the image acquisition device 53 obtains the image information of the pole piece 1 from the side of the pole piece 1 away from the base plate 51, which can highlight the edge of the pole piece 1, thereby improving the imaging quality of the pole piece 1, and further improving the accuracy of the image information of the pole piece 1 obtained. Among them, the image information of the pole piece 1 can specifically include the size information and current position information of the pole piece 1, and the current position information of the pole piece 1 can specifically include coordinate information along the X direction, the Y direction and the Z direction.

[0037] In one embodiment, the image acquisition device 53 may be a camera; for example, a CCD camera; the positioning detection area C may be the position area where the pole piece 1 is positioned above the light source 52, for example, it may be the area corresponding to the opening of the groove 511.

[0038] In one embodiment, the image acquisition device 53 corresponds to the position of the groove 511 to obtain a high-quality image under the illumination of the light source 52. In one embodiment, the image acquisition device corresponds to the center of the groove 511 to further reduce the probability of imaging blur at the edge of the pole piece 1.

[0039] In the specific implementation process, there is one image acquisition device 53; of course, in other embodiments, multiple image acquisition devices 53 can also be set, such as two or three, and then the images of the pole piece 1 acquired by each image acquisition device 53 are compared to obtain the clearest image, and then the image information of the image is acquired, thereby further improving the accuracy of the acquired image information.

[0040] The electrode detection device 50 provided in this embodiment is provided with a base plate 51, a groove 511 is provided on one side surface of the base plate 51, and a cover plate 512 is provided at the opening of the groove 511 to support the electrode 1 located thereon; at the same time, a light source 52 is provided in the groove 511 so that the light source 52 illuminates the positioning detection area C; in addition, an image acquisition device 53 is provided on a side of the cover plate 512 away from the light source 52 so that when the light source 52 illuminates the positioning detection area C, the image of the electrode 1 on the cover plate 512 located in the positioning detection area C is collected by the image acquisition device 53, and then the image is obtained based on the image. Obtain image information of the pole piece 1; wherein, since the light source 52 and the image acquisition device 53 are respectively arranged on opposite sides of the cover plate 512, when the pole piece 1 is located on the cover plate 512 of the positioning detection area C, the light source 52 can illuminate the pole piece 1 from the surface of the side of the pole piece 1 close to the base plate 51, and the image acquisition device 53 collects the image of the pole piece 1 from the side of the pole piece 1 away from the base plate 51, so that not only can the image information of the pole piece 1 be obtained based on the image, but also the problem of blurred imaging at the edge of the pole piece 1 can be avoided, so as to effectively improve the accuracy of the image information of the pole piece 1 obtained, and thus the correction accuracy of the pole piece 1 can be greatly improved.

[0041] In one embodiment, see Figure 1 The above-mentioned electrode detection device 50 also includes a conveyor belt 54, which is wound on the bottom plate 51 and can run along the length direction A of the bottom plate 51 to directly support the electrode 1 transported to the surface of the conveyor belt 54 and transport the electrode 1 to the top of the cover plate 512. Specifically, the conveyor belt 54 can be a transparent belt. In other embodiments, when the light source 52 is a light source that only emits specific light (such as infrared or ultraviolet light), the cover plate 512 and the conveyor belt 54 can only allow this specific light (such as infrared or ultraviolet light) to pass through, and the corresponding image acquisition device 53 can capture the image of this specific light.

[0042] See also Figure 2 and Figure 3 In one embodiment, the bottom plate 51 is provided with a plurality of second adsorption holes 513 on the surface in contact with the conveyor belt 54, and a plurality of vacuum holes 514 are provided at intervals. Each second adsorption hole 513 can be an elongated groove provided on the surface of the bottom plate 51 and extends along the length direction A of the bottom plate 51; each vacuum hole 514 can be a through hole perpendicular to the length direction A of the bottom plate 51. Each vacuum hole 514 can be connected to part or all of the aforementioned plurality of second adsorption holes 513, and the second adsorption hole 513 can be connected to the vacuum device through the vacuum hole 514 and the vacuum joint 515 connected to the vacuum hole 514. The conveyor belt 54 is provided with a plurality of third adsorption holes 541 (see Figure 4), the third adsorption hole 541 can be a circular hole or a waist-shaped hole. Thus, when the vacuum device is operating, the electrode piece 1 can be adsorbed on the surface of the conveyor belt 54 to prevent relative displacement between the electrode piece 1 and the conveyor belt 54 during transmission due to vibration of the conveyor belt 54 or sudden start and stop of the conveyor belt 54, thereby ensuring that the electrode piece 1 can be stably transported to the preset position via the conveyor belt 54. The aforementioned vacuum device connected to the second adsorption hole 513 and the vacuum device connected to the groove 511 can be the same vacuum device or different vacuum devices.

[0043] Further, see Figures 1 to 4 In one embodiment, a detection mark 542 is provided on the conveyor belt 54 along the conveying direction A of the conveyor belt 54; specifically, in this embodiment, the conveyor belt conveying detection device 50 also includes a conveyor belt driving mechanism, a first detection member 55 and a control system (not shown).

[0044] Among them, the conveyor belt driving mechanism is used to drive the conveyor belt 54 to operate, the conveyor belt 54 is used to support and transport the electrode 1, and a detection mark 542 is provided on the conveyor belt 54 along the conveying direction A of the conveyor belt 54; wherein, the detection mark 542 can specifically be a detection hole opened on the conveyor belt 54 or a label set on the conveyor belt 54.

[0045] Among them, the first detection component 55 can be specifically a fiber optic sensor, which is specifically arranged on the conveyor belt drive mechanism and corresponds to the first position. It is used to detect the detection mark 542 on the conveyor belt 54 passing through the first position during the operation of the conveyor belt 54, so that when the detection mark 542 is detected, the conveyor belt 54 is controlled to stop running through the control system, and then the pole piece 1 is placed on the surface of the conveyor belt 54; wherein the first position is located on the operating trajectory of the detection mark 542. Specifically, when the first detection member 55 detects the detection mark 542, the first detection member 55 feeds back the detection result to the control system, and the control system controls the conveyor belt 54 to stop running according to the detection result. After the next electrode 1 is transported and adsorbed to the surface of the conveyor belt 54, the conveyor belt 54 is controlled to start through the control system to continue to operate; when the first detection member 55 does not detect the detection mark 542, the conveyor belt 54 continues to operate; wherein, since the device controls the start and stop of the conveyor belt 54 by detecting the detection mark 542 on the conveyor belt 54, the conveyor belt 54 can run the same distance each time and then stop running, and then transport the electrode 1 to the surface of the conveyor belt 54, so that the electrode 1 can be accurately placed on the surface of the conveyor belt 54.

[0046] In one embodiment, there are multiple detection marks 542, and the multiple detection marks 542 are evenly spaced on the conveyor belt 54. In this embodiment, the first detection member 55 is also used to detect the number of detection marks 542 passing through the first position, so that the control system controls the conveyor belt 54 to stop running when the number of detection marks 542 meets a preset threshold, and then places the electrode 1 on the surface of the conveyor belt 54. It can be understood that the first detection member 55 counts each detection mark 542 it detects to obtain the cumulative number of detection marks 542 detected at the current moment.

[0047] Among them, the preset threshold value can be two or three, and of course it can also be one of the above-mentioned ones; specifically, when the number value of the detection mark 542 detected by the first detection member 55 meets the preset threshold value, the first detection member 55 feeds back the detection result to the control system, and the control system controls the conveyor belt 54 to stop running according to the detection result, and continues to make the conveyor belt 54 start running after the next electrode 1 is transported and adsorbed to the surface of the conveyor belt 54; when the number value of the detection mark 542 detected by the first detection member 55 does not meet the preset threshold value, the conveyor belt 54 continues to run; wherein, since the spacing between each detection mark 542 on the conveyor belt 54 is equal, each time the first detection member 55 detects a certain number of detection marks 542, the corresponding distance of the conveyor belt 54 is the same, so that the conveyor belt 54 can be controlled by the control system to stop running after each predetermined distance, and then the electrode 1 is transported to the surface of the conveyor belt 54 and adsorbed, thereby not only enabling the electrode 1 to be accurately placed on the surface of the conveyor belt 54, but also effectively ensuring that the spacing between each electrode 1 transported to the surface of the conveyor belt 54 is equal. It can be understood that, in this embodiment, each time the conveyor belt 54 stops running, the first detecting member 55 recounts the number of the detected detection marks 542 .

[0048] The control system is connected to the first detection member 55 to control the start and stop of the conveyor belt 54 according to the detection result of the first detection member 55. Specifically, the control system can control the start and stop of the roller system, and further control the start and stop of the conveyor belt 54 driven by the roller system.

[0049] The electrode 1 is transported to the surface of the conveyor belt 54 through the loading mechanism, and the suction cup in the loading mechanism may suck two or more electrode sheets 1 stacked in the vertical direction to the surface of the conveyor belt 54 at one time. In order to prevent the conveyor belt 54 from transporting two or more electrode sheets 1 stacked in the vertical direction, in one embodiment, the above-mentioned conveyor belt 54 conveying detection device 50 also includes a stacking detection component.

[0050] The stacking detection assembly is arranged to correspond to the second position and is connected to the control system. It is used to detect whether there are multiple pole pieces 1 on the conveyor belt 54 passing through the second position, and control the conveyor belt 54 to stop operation when multiple pole pieces 1 are detected. The overlapping direction of the pole pieces 1 refers to the direction perpendicular to the plane of the conveyor belt 54; the second position is located on the movement trajectory of the pole pieces.

[0051] In one embodiment, see Figure 1 and Figure 2 The stacking detection assembly may include a second detection member 56 and a third detection member 57. The second detection member 56 and / or the third detection member 57 are connected to the control system and are disposed on opposite sides of the conveyor belt 54. The second detection member 56 and the third detection member 57 work together to detect whether a plurality of pole pieces 1 are present on the conveyor belt 54 passing the second position. The second detection member 56 and the third detection member 57 may be ultrasonic sensors.

[0052] In one embodiment, the second detection member 56 is arranged on the side of the conveyor belt 54 away from the conveyor belt driving mechanism, and the third detection member 57 is arranged on the side of the conveyor belt 54 close to the conveyor belt driving mechanism, and the third detection member 57 is connected to the control system; so that in a specific detection process, a detection signal is emitted by the second detection member 56, and the detection signal is received by the third detection member 57, and then whether the pole piece 1 is stacked is detected by judging whether the received detection signal is different from the preset signal.

[0053] Furthermore, a plurality of test holes 543 are provided on the conveyor belt 54. The plurality of test holes 543 cooperate with the second detection member 56 and the third detection member 57 to detect whether a plurality of pole pieces 1 are present on the conveyor belt 54 passing through the second position. Specifically, one of the detection members sends a detection signal, which passes through the pole piece 1 and the test hole 543. The detection signal is received by another detection member and, based on whether the detection signal is different from a preset signal, detects whether a plurality of pole pieces 1 are present on the conveyor belt 54 passing through the second position. The position of the pole piece 1 supported on the surface of the conveyor belt 54 corresponds to the position of at least one test hole 543, to ensure that each pole piece 1 can be detected by the second detection member 56, the test hole 543, and the third detection member 57 to determine whether it is stacked.

[0054] In one embodiment, a plurality of test holes 543 are distributed along the conveying direction of the conveyor belt 54, and the spacing L1 between two adjacent test holes 543 is the same as the spacing L2 between two adjacent detection marks 542, and in the width direction of the conveyor belt 54, each detection mark 542 is aligned with each test hole 543; further, each test hole 543 is at the same vertical distance L3 from the two side edges of the conveyor belt 54.

[0055] See also Figure 5 , Figure 5 This is a schematic diagram of the operation of the electrode detection device and the lamination station provided in one embodiment of the present application, in which the conveyor belt is not shown. In this embodiment, the above-mentioned electrode detection device 50 also includes a correction component, which may include a grabbing member 58 and a vacuum breaking component (not shown). The grabbing member 58 is connected to the control system to control it to drive it to pick up the electrode 1 from the conveyor belt 54 and move the grabbing member 58. The control system connected to the first detection member 55 can also control the operation of other relevant parts of the conveyor belt conveying detection device 50, or can be integrated with the control system connected to the grabbing member 58 into an overall control system.

[0056] Among them, the grabbing member 58 is connected to the image acquisition device 53, and is used to grab the pole piece 1 in the positioning detection area C, and correct the current position of the pole piece 1 according to the image information of the pole piece 1 obtained by the image acquisition device 53, and at the same time transport it to the stacking station D; specifically, the grabbing member 58 completes the correction action during the transportation of the pole piece 1, or the grabbing member 58 first corrects the pole piece 1 and then transports it; in one embodiment, the grabbing member 58 can be a robot or a robotic arm.

[0057] During the specific implementation process, the gripping member 58 compares the coordinate information in the image information with the preset coordinate information to obtain the coordinate deviation values ​​in each direction, and then corrects the current position of the electrode 1 based on the coordinate deviation value, and transports it to the lamination station D; this can effectively improve the correction accuracy of the electrode 1. Among them, the preset coordinate information corresponds to the coordinate information of the current position information of the electrode 1, that is, when the coordinate information of the current position information of the electrode 1 includes coordinate information in the X direction, Y direction and / or Z direction, the preset coordinate information also includes coordinate information along the X direction, Y direction and / or Z direction. Among them, the above-mentioned lamination station D specifically refers to the diaphragm setting station.

[0058] The vacuum breaking component is connected to the groove 511 so that when the grasping member 58 grasps the electrode 1 in the positioning detection area, gas is provided to the surface of the electrode 1 facing the groove 511, thereby separating the electrode 1 from the conveyor belt 54; in one embodiment, the vacuum breaking component can be a high-pressure air source, and the air outlet end of the high-pressure air source is connected to the groove 511 through an air joint. When it is necessary to separate the electrode 1 on the conveyor belt 54 from the conveyor belt 54, the compressed air in the high-pressure air source enters the groove 511 through the ventilation joint and blows toward the side surface of the electrode 1 close to the bottom plate 51, so that the electrode 1 is separated from the surface of the conveyor belt 54, thereby reducing the difficulty of the grasping member 58 grasping the electrode 1 and transporting the electrode 1 to the stacking station D.

[0059] The correction component provided in this embodiment is configured to connect the gripping member 58 to the image acquisition device 53 by setting a gripping member 58, so as to compare the coordinate information of the current position of the electrode 1 acquired by the image acquisition device 53 with the preset coordinate information to obtain a coordinate deviation value, and then correct the current position of the electrode 1 according to the coordinate deviation value, thereby greatly improving the correction accuracy of the electrode 1; at the same time, by setting a vacuum breaking component, the electrode 1 is separated from the conveyor belt 54 during the process of the gripping member 58 gripping the electrode 1, thereby greatly reducing the difficulty of the gripping member 58 gripping the electrode 1 and transporting the electrode 1 to the stacking station D.

[0060] During the specific implementation process, in order to facilitate the operation of the conveyor belt 54 on the base plate 51, at least one roller 516 is provided at the opposite ends of the base plate 51; in one embodiment, a roller 516 is provided at the opposite ends of the base plate 51, and a driving roller 517 is provided on the side of the base plate 51 away from the first detection member 55. The conveyor belt 54 is specifically wound around the roller 516 and the driving roller 517 and supported on the side surface of the base plate 51 close to the first detection member 55.

[0061] In one embodiment, at least two tensioning pulleys 518 are provided on opposite sides of the driving roller 517 to adjust the tension of the conveyor belt 54. Furthermore, a tensioning adjustment mechanism 5181 is provided on the tensioning pulley 518 to adjust the movement of the tensioning pulley 518 in a direction perpendicular to the plane of the base plate 51. In one embodiment, the tensioning adjustment mechanism 5181 may specifically include a fixed block and a screw. The fixed block may be fixed to a mounting plate, with the screw threaded onto the fixed block. The other end of the screw threadedly connected to the support shaft of the tensioning pulley 518 is slidably connected to the mounting plate. Thus, when the screw is rotated, the support shaft of the tensioning pulley 518 is driven upward, thereby tensioning the conveyor belt 54.

[0062] The above-mentioned pole piece detection device 50 also includes other structures, which are the same as other structures and functions of pole piece detection devices in the prior art and will not be described in detail here.

[0063] The above are merely embodiments of the present application and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A pole piece detection device, characterized in that: include: A bottom plate, wherein a groove is formed on one side surface of the bottom plate, and a cover plate is provided at the opening of the groove, and the cover plate is used to support the electrode; a light source, disposed in the groove, for illuminating the positioning detection area; the cover plate being capable of allowing light emitted by the light source to pass through; and an image acquisition device, disposed on a side of the cover plate away from the light source, for acquiring image information of the pole piece located in the positioning detection area by receiving light passing through the cover plate; A conveyor belt is used to directly support and transport the electrode piece; the conveyor belt is wound around the bottom plate and can run along the length direction of the bottom plate to transport the electrode piece to the top of the cover plate, and the conveyor belt is provided with detection marks along the conveying direction of the conveyor belt. There are multiple detection marks, and the multiple detection marks are evenly spaced on the conveyor belt; a first detection member, for detecting the detection mark; If the first detection element detects the detection mark, the conveyor belt is controlled to stop running, and the pole piece is placed on the surface of the conveyor belt; If the first detection member does not detect the detection mark, the conveyor belt is kept running.

2. The pole piece detection device according to claim 1, characterized in that: The cover plate is provided with a first adsorption hole; the groove is used to be connected to a vacuum pumping device so that when the vacuum pumping device is working, an adsorption force is generated on the pole piece through the first adsorption hole.

3. The pole piece detection device according to claim 1, characterized in that: The cover plate is a transparent plate.

4. The pole piece detection device according to claim 1, characterized in that: A plurality of second adsorption holes are provided on the bottom plate, and a third adsorption hole connected to the second adsorption hole is provided on the conveyor belt. The second adsorption hole is used to connect with the vacuum device so that the electrode is adsorbed on the surface of the conveyor belt when the vacuum device is working.

5. The pole piece detection device according to claim 1, characterized in that: The conveyor belt is a transparent belt.

6. The pole piece detection device according to claim 1, characterized in that: The first detection member is arranged to correspond to a first position, the first position being located on the running track of the detection mark, and the pole piece detection device further comprises: A conveyor belt driving mechanism, used for driving the conveyor belt to operate; A control system is connected to the first detection element and is used to control the start and stop of the conveyor belt according to the detection result of the first detection element.

7. The pole piece detection device according to claim 6, characterized in that: Also included is a stack detection component; The stacking detection component is set to correspond to the second position and is connected to the control system for detecting whether there are multiple pole pieces on the conveyor belt passing through the second position; wherein the second position is located on the moving trajectory of the pole piece.

8. The pole piece detection device according to claim 1, characterized in that: The length and width of the groove are both greater than the length and width of the pole piece.

9. The pole piece detection device according to any one of claims 1 to 8, characterized in that: It also includes a correction component, which includes a grabbing piece connected to the image acquisition device, and is used to grab the pole piece in the positioning detection area, correct the position of the pole piece according to the image information acquired by the image acquisition device, and transport it to the stacking station.

10. The pole piece detection device according to claim 9, characterized in that: The correction assembly further includes a vacuum breaking assembly, which is connected to the groove and is used to provide gas to the surface of the pole piece facing the groove when the grasping member grasps the pole piece at the positioning detection area.

11. The pole piece detection device according to claim 9, characterized in that: The gripping member is a robot or a robotic arm; and / or The gripping member performs a deviation correction action during the process of transporting the pole piece.

Images