CN218896055U - Pole piece detection equipment and pole piece detection system - Google Patents
Pole piece detection equipment and pole piece detection system Download PDFInfo
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- CN218896055U CN218896055U CN202222947538.6U CN202222947538U CN218896055U CN 218896055 U CN218896055 U CN 218896055U CN 202222947538 U CN202222947538 U CN 202222947538U CN 218896055 U CN218896055 U CN 218896055U
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Abstract
The utility model provides pole piece detection equipment and a pole piece detection system. The pole piece detection device comprises: the mobile platform comprises a first mobile seat and a driver, wherein the first mobile seat can move along a first direction under the action of the driver; the first image acquisition device is arranged on the first movable seat, and a lens of the first image acquisition device is aligned to the pole piece edge detection area; the position detection device is arranged on the first movable seat and is used for detecting the position information of the edge of the pole piece in the pole piece edge detection area in the first direction and generating a position signal; and the control device can control the driver to drive the first movable seat to move along the first direction so as to enable the distance between the edge of the pole piece and the lens of the first image acquisition device to be within a preset range. The pole piece detection equipment can enable the image acquisition device to dynamically follow the edge of the pole piece, so that clear images are acquired, and the detection effect is improved.
Description
Technical Field
The utility model relates to the technical field of battery processing, in particular to pole piece detection equipment and a pole piece detection system.
Background
In the battery production process, in order to ensure the quality and the use safety of the battery, the quality detection requirement on the battery is high. The introduction of defective battery products into the market will have the potential to have very serious consequences. On the traditional production line, adopt the mode of artifical selective examination, not only efficiency can't ensure, the defective rate of product is also higher. The machine vision detection has obvious use advantages, including high accuracy, high efficiency, strong stability and the like. Therefore, a pole piece detection device based on machine vision detection needs to be used on a modern automatic production line.
In order to detect whether burrs exist on the battery pole piece, an image acquisition device capable of carrying out image acquisition on the pole piece is arranged on the pole piece detection equipment. The clearer the photographed image is, the higher the accuracy of burr detection is, and thus, a pole piece detecting device capable of photographing a clear image as much as possible is required in the related art.
Disclosure of Invention
In order to at least partially solve the problems of the prior art, according to one aspect of the present utility model, there is provided a pole piece detection device having a pole piece edge detection zone, the pole piece detection device comprising: the mobile platform comprises a first mobile seat and a driver, wherein the first mobile seat can move along a first direction under the action of the driver; the first image acquisition device is arranged on the first movable seat, and a lens of the first image acquisition device is aligned to the pole piece edge detection area along the first direction; the position detection device is arranged on the first movable seat and is used for detecting the position information of the edge of the pole piece in the pole piece edge detection area in the first direction and generating a position signal; and the control device is electrically connected to the position detection device and the driver and is used for controlling the driver to drive the first movable seat to move along the first direction according to the position signal so as to enable the distance between the edge of the pole piece and the lens of the first image acquisition device to be within a preset range.
According to the pole piece detection equipment provided by the utility model, the position information of the pole piece edge in the first direction is detected through the position detection device, so that the position of the first image acquisition device is adjusted to enable the pole piece edge to be located in the pole piece edge detection area, and the pole piece edge and the lens of the first image acquisition device are kept in a preset range all the time, so that the image acquisition device can dynamically follow the pole piece edge, the image acquisition device can accurately focus the pole piece edge all the time, a clear image is acquired, and the detection effect is improved.
The position detection device comprises a photoelectric sensor, which comprises a transmitter and a receiver, which are arranged opposite to each other at two sides of the pole piece edge detection area. The position detection device with the structure has the advantages that the position information of the edge of the detection pole piece is more accurate and stable, and the detection effect is improved.
Illustratively, the optical path between the transmitter and the receiver is perpendicular to the first direction. The position detection device is simpler in structure, easy to realize and better in detection effect.
The pole piece detection device further comprises a first light source arranged on the first moving seat, wherein the first light source is arranged between the pole piece edge detection area and the first image acquisition device and faces the pole piece edge detection area. The setting of the first light source can strengthen the image acquisition effect of the first image acquisition device, and then the detection effect of the whole equipment is improved.
The first light source is illustratively a ring-shaped light source surrounding the optical axis of the first image capturing device. The first light source with the annular light source form has better light supplementing effect for the first image acquisition device, and improves the detection effect of the whole equipment.
The pole piece detection device further comprises a second image acquisition device, wherein a lens of the second image acquisition device is aligned with the pole piece edge detection area along a second direction, and an included angle is formed between the second direction and the first direction. Therefore, the whole device can obtain the images of the edges of the pole pieces from a plurality of angles, the detection quantity is increased, the detection efficiency is improved, and the pole piece detection device has better detection effect on the edges of the pole pieces.
The mobile platform further includes a second moving base movably disposed on the first moving base along a second direction, and the second image capturing device is disposed on the second moving base. Through setting up the second and remove the seat, can conveniently adjust the distance at second image acquisition device and pole piece edge, the pole piece check out test set of being convenient for is used for detecting the pole piece edge of different specifications, has enlarged the application scope of whole equipment, and easy operation is convenient moreover.
The second direction is perpendicular to the first direction, and an optical axis of the lens of the second image pickup device intersects with an optical axis of the lens of the first image pickup device perpendicularly. Like this, first image acquisition device and second image acquisition device can shoot the edge of the pole piece of gathering from a plurality of angles, and detection efficiency is higher, and overall structure is simpler, and is convenient moreover, improves the detection effect.
The pole piece detection device further comprises a second light source arranged on the first moving seat, and the second light source and the second image acquisition device are oppositely arranged at two sides of the pole piece edge detection area along the second direction. The second light source can provide backlight for the second image acquisition device, so that the image acquisition effect of the second image acquisition device is enhanced, and the detection effect of the whole equipment is improved.
According to another aspect of the present utility model there is provided a pole piece detection system comprising a support and a pole piece detection device as any one of the above, the pole piece detection device being provided on the support. The support can adjust the angle of the pole piece detection equipment arranged on the support, so that the pole piece detection equipment can be suitable for detecting pole pieces with various specifications, and the pole piece detection equipment can be applied to various structure production lines, and the application range of a pole piece detection system is enlarged.
In the summary, a series of concepts in a simplified form are introduced, which will be further described in detail in the detailed description section. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
Advantages and features of the utility model are described in detail below with reference to the accompanying drawings.
Drawings
The following drawings are included to provide an understanding of the utility model and are incorporated in and constitute a part of this specification. Embodiments of the present utility model and their description are shown in the drawings to explain the principles of the utility model. In the drawings of which there are shown,
FIG. 1 is a perspective view of a pole piece detection system according to an exemplary embodiment of the present utility model;
FIG. 2 is a perspective view of the pole piece detection system of FIG. 1 in another orientation; and
fig. 3 is a perspective view of the pole piece detection system of fig. 1 in yet another orientation.
Wherein the above figures include the following reference numerals:
10. pole piece detection equipment; 20. a bracket; 100. a mobile platform; 110. a first movable seat; 120. a driver; 130. a second movable seat; 210. a first image acquisition device; 220. a first light source; 230. a second image acquisition device; 240. a second light source; 300. a position detecting device; 310. a transmitter.
Detailed Description
In the following description, numerous details are provided to provide a thorough understanding of the utility model. However, it will be understood by those skilled in the art that the following description illustrates preferred embodiments of the utility model by way of example only and that the utility model may be practiced without one or more of these details. Furthermore, some technical features that are known in the art have not been described in detail in order to avoid obscuring the utility model.
According to one aspect of the present utility model, as shown in FIGS. 1-3, a pole piece detection device 10 is provided. The pole piece detection device 10 may have a pole piece edge detection zone. The pole piece edge detection area refers to an area which is near the pole piece and detects the edge of the pole piece. As shown in fig. 1, the pole piece detection device 10 may detect the edge of a pole piece located within a pole piece edge detection zone. The pole piece detection device 10 may further comprise a mobile platform 100, a first image acquisition means 210, a position detection means 300 and a control means.
The mobile platform 100 may include a first mobile station 110 and a driver 120. The first movable base 110 is movable in a first direction (direction in which X-X is located) by the driver 120. In some embodiments, the driver 120 may include a motor and a screw, and the first moving seat 110 may be screwed with the screw, and the motor may drive the screw to rotate so as to move the first moving seat 110. Of course, in other embodiments, the driver 120 may further include a hydraulic cylinder, an air cylinder, or any device capable of driving the first moving seat 110 to move, which will not be described herein.
The first image pickup device 210 may be disposed on the first moving seat 110. The first image capturing device 210 may be a camera. According to different requirements, the first image capturing device 210 may employ cameras with different specifications, such as an optical camera or an infrared camera. The first image capturing device 210 may be disposed on the first moving base 110 by various connection methods such as welding, fastening, and screwing, so that when the first moving base 110 moves in the first direction X-X under the action of the driver 120, the first image capturing device 210 moves along with the first moving base 110 in the first direction X-X.
The lens of the first image capturing device 210 may be aligned with the pole piece edge detection area along the first direction X-X. That is, the first image capturing device 210 may obtain an image of an object (e.g., a pole piece edge including a burr, or a pole piece edge not including a burr) in the pole piece edge detection area, and during the movement of the first image capturing device 210 along the first direction X-X, the focal length of the first image capturing device changes along with the movement, so that the sharpness of the captured image of the object in the pole piece edge detection area may also be different. For example, taking the first image capturing device 210 as an optical camera, the focal length of the camera is usually set before imaging is ready, and if the focal length of the camera is already set, the distance between the lens and the object in the edge detection area of the pole piece changes, so that the sharpness of the obtained image of the object in the edge detection area of the pole piece changes. At this time, a clearer image of the object in the pole piece edge detection area can be obtained by changing the distance between the camera lens and the object in the pole piece edge detection area.
For convenience of description, the first image capturing device 210 is taken as an optical camera for illustration.
The position detecting device 300 may be provided on the first moving seat 110. The position detection device 300 may include an inductive synchronizer, a magnetic scale position detection device, a grating position detection device, a laser interferometer, or other various components. The position detecting device 300 may be disposed on the first movable seat 110 by various connection methods such as a fastening connection, a screw connection, and the like. The position detection device 300 may be used to detect position information of the pole piece edge in the first direction X-X within the pole piece edge detection zone and may generate a position signal. In the case where the focal length of the camera lens has been set, the focal position of the camera lens can be determined. The position information may be a distance between the edge of the pole piece and the first image capturing device 210 in the first direction X-X, or a distance between the edge of the pole piece and the focal point of the camera lens. A corresponding position signal may be obtained based on the position information. The position signal may represent the relative distance of the pole piece edge from the first image acquisition device 210 in the first direction X-X. When the position of the edge of the pole piece is very close to the focus of the camera lens, the obtained image of the edge of the pole piece is clearer. The position information here is associated with the sharpness of the image of the edge of the pole piece obtained by the first image acquisition means 210.
The control device may be electrically connected to the position detection device and the driver 120. The control device may be configured to control the driver 120 to drive the first moving seat 110 to move along the first direction X-X according to the position signal, so that a distance between the edge of the pole piece and the lens of the first image capturing device 210 may be within a predetermined range. The predetermined range refers to the distance between the edge of the pole piece and the lens of the first image capturing device 210 when the image of the edge of the pole piece obtained on the first image capturing device 210 is clear. In the embodiment shown in fig. 1, the control means controls the driver to be inoperative based on the position signal when the position signal shows that the distance between the edge of the pole piece and the lens of the first image capturing means 210 is within a predetermined range. When the position signal shows that the distance between the edge of the pole piece and the lens of the first image acquisition device 210 is out of the preset range, the control device controls the driver to work based on the position signal, and drives the first movable seat 110 to move along the first direction X-X so as to enable the distance between the edge of the pole piece and the lens of the first image acquisition device 210 to be in the preset range.
According to the pole piece detection equipment 10 provided by the utility model, the position information of the edge of the pole piece in the first direction X-X is detected by the position detection device 300, so that the position of the first image acquisition device 210 is adjusted, the edge of the pole piece is positioned in the pole piece edge detection area, and the pole piece edge and the lens of the first image acquisition device 210 are kept within a preset range all the time, so that the image acquisition device can dynamically follow the edge of the pole piece, the image acquisition device can accurately focus the edge of the pole piece all the time, a clear image is acquired, and the detection effect is improved.
The control device can be built by adopting electronic elements such as a timer, a comparator, a register, a digital logic circuit and the like, or can be realized by adopting processor chips such as a singlechip, a microprocessor, a Programmable Logic Controller (PLC), a Digital Signal Processor (DSP), a Field Programmable Gate Array (FPGA), a Programmable Logic Array (PLA), an Application Specific Integrated Circuit (ASIC) and the like and peripheral circuits thereof.
1-3, the position detection apparatus 300 may include a photosensor, which may include a transmitter 310 and a receiver. The receiver is not shown in the figures due to the view relationship. The emitter 310 and the receiver may be disposed opposite each other on either side of the pole piece edge detection region. It should be noted that the relative positional relationship between the transmitter 310 and the receiver shown in the drawings is merely for reference, and in fact, the relative positions of the transmitter 310 and the receiver may be reversed, and the connection line between the transmitter 310 and the receiver may have any angle with the first direction X-X, which is not specifically limited herein. The position detection device 300 with the structure can detect the position information of the edge of the pole piece more accurately and stably, and the detection effect is improved.
Illustratively, the optical path between the transmitter 310 and the receiver may be perpendicular to the first direction X-X. Such a position detecting device 300 is simpler in structure, easy to implement, and better in detection effect.
Illustratively, the pole piece detection device 10 may further include a first light source 220 disposed on the first movable mount 110. The first light source 220 may be disposed between the pole piece edge detection region and the first image capture device 210 and may face the pole piece edge detection region. The first light source 220 may be a point light source, a surface light source, or other various forms. The arrangement of the first light source 220 can enhance the image acquisition effect of the first image acquisition device 210, thereby improving the detection effect of the whole device.
Illustratively, the first light source 220 may be a ring-shaped light source that surrounds the optical axis of the first image capturing device 210. The first light source 220 with the annular light source form has better light supplementing effect on the first image acquisition device 210, and improves the detection effect of the whole equipment.
Illustratively, as shown in FIGS. 1-3, the pole piece detection device 10 may further include a second image acquisition apparatus 230. The lens of the second image capturing device 230 may be aligned with the pole piece edge detection area along the second direction (the direction in which Y-Y is located). The second direction Y-Y may have an angle with the first direction X-X.
In the embodiment shown in fig. 1-3, the lens of the second image capturing device 230 may have a reflective mirror structure, and the reflective mirror may change the optical path of the lens of the second image capturing device 230 so that the lens of the second image capturing device 230 is aligned with the pole piece edge detection area along the second direction Y-Y. In other embodiments, not shown, the lens of the second image capturing device 230 may also have no mirror structure, and in this case, the lens of the second image capturing device 230 is directly aligned with the pole piece edge detection area along the second direction Y-Y.
It should be noted that the second image capturing device 230 may be the same type of camera as the first image capturing device 210, or may be a different type of camera. The second image acquisition device 230 is arranged to acquire the image of the edge of the pole piece from the second direction Y-Y, so that the whole device can acquire the image of the edge of the pole piece from a plurality of angles, the detection quantity is increased, the detection efficiency is improved, and the detection effect of the pole piece detection device on the edge of the pole piece is better.
Illustratively, the mobile platform 100 may further include a second mobile station 130. The second moving seat 130 may be movably disposed on the first moving seat 110 in the second direction Y-Y. The second image pickup device 230 may be disposed on the second moving seat 130. The second movable seat 130 may be provided on the first movable seat 110 by a screw connection, a snap connection, or other movable connection. The second image capturing device 230 is disposed on the second moving base 130 and can move in the second direction Y-Y along with the second moving base 130 relative to the first moving base 110. In the practical use of the pole piece detecting device, the movement of the edge of the pole piece in the second direction Y-Y has little influence on the imaging of the second image capturing device 230, and the position of the second movable base 130 relative to the first movable base 110 in the second direction Y-Y may be adjusted in advance, that is, the distance between the second image capturing device 230 and the edge of the pole piece in the second direction Y-Y is adjusted. In some embodiments, the second mobile station 130 may be a manual mobile station. Through setting up second movable seat 130, can conveniently adjust the distance of second image acquisition device 230 and pole piece edge, the pole piece check out test set 10 of being convenient for is used for detecting the pole piece edge of different specifications, has enlarged the application scope of whole equipment, and easy operation is convenient moreover.
Illustratively, the second direction Y-Y may be perpendicular to the first direction X-X, that is, the included angle is 90 degrees. The optical axis of the lens of the second image capturing device 230 may meet the optical axis of the lens of the first image capturing device 210 perpendicularly, i.e., the first image capturing device 210 and the second image capturing device 230 may de-photograph from two perpendicular perspectives for burrs in the burr area of the pole piece edge. The second direction Y-Y is perpendicular to the first direction X-X, so that the detection efficiency is higher, and the whole structure is simpler. The optical axis of the lens of the second image acquisition device 230 is intersected with the optical axis of the lens of the first image acquisition device 210, so that the edge of the acquired pole piece is conveniently detected from a plurality of angles, and the detection effect is improved.
Illustratively, the pole piece detection device 10 may further include a second light source 240 disposed on the first movable mount 110. The second light source 240 and the second image capture device 230 may be disposed opposite each other along the second direction Y-Y on both sides of the pole piece edge detection region. The second light source 240 may be a point light source, a surface light source, or other various forms. The second light source 240 may provide backlight for the second image capturing device 230, thereby enhancing the image capturing effect of the second image capturing device 230 and further improving the detection effect of the whole apparatus.
According to another aspect of the present utility model, as shown in FIGS. 1-3, a pole piece detection system is provided. The pole piece detection system may comprise a support 20 and a pole piece detection device 10 as any one of the above, the pole piece detection device 10 may be arranged on the support 20. According to the actual detection needs, a bracket with various different forms can be adopted, preferably, a bracket 20 with an angle adjusting function can be adopted, and the bracket 20 can adjust the angle of the pole piece detection device 10 arranged on the bracket, so that the pole piece detection device 10 can be suitable for detecting pole pieces with various specifications, the pole piece detection device 10 can also be applied to various structural production lines, and the application range of a pole piece detection system is enlarged.
In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front", "rear", "upper", "lower", "left", "right", "transverse", "vertical", "horizontal", and "top", "bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely for convenience of describing the present utility model and simplifying the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, without limiting the scope of protection of the present utility model; the orientation terms "inner" and "outer" refer to the inner and outer relative to the outline of the components themselves.
For ease of description, regional relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein to describe regional positional relationships of one or more components or features to other components or features illustrated in the figures. It will be understood that the relative terms of regions include not only the orientation of the components illustrated in the figures, but also different orientations in use or operation. For example, if the element in the figures is turned over entirely, elements "over" or "on" other elements or features would then be included in cases where the element is "under" or "beneath" the other elements or features. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". Moreover, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and all such cases are intended to be encompassed herein.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, components, assemblies, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.
The present utility model has been illustrated by the above-described embodiments, but it should be understood that the above-described embodiments are for purposes of illustration and description only and are not intended to limit the utility model to the embodiments described. In addition, it will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that many variations and modifications are possible in light of the teachings of the utility model, which variations and modifications are within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (10)
1. A pole piece inspection apparatus having a pole piece edge inspection region, comprising:
the mobile platform comprises a first mobile seat and a driver, wherein the first mobile seat is movable along a first direction under the action of the driver;
the first image acquisition device is arranged on the first movable seat, and a lens of the first image acquisition device is aligned to the pole piece edge detection area along the first direction;
the position detection device is arranged on the first movable seat and is used for detecting the position information of the edge of the pole piece in the pole piece edge detection area in the first direction and generating a position signal; and
the control device is electrically connected to the position detection device and the driver, and is used for controlling the driver to drive the first moving seat to move along the first direction according to the position signal so as to enable the distance between the edge of the pole piece and the lens of the first image acquisition device to be within a preset range.
2. A pole piece detection device according to claim 1, characterized in that the position detection means comprise a photosensor comprising a transmitter and a receiver arranged opposite each other on both sides of the pole piece edge detection zone.
3. The pole piece detection device of claim 2, wherein an optical path between the transmitter and the receiver is perpendicular to the first direction.
4. The pole piece detection device of claim 1, further comprising a first light source disposed on the first movable mount, the first light source disposed between the pole piece edge detection region and the first image capture device and facing the pole piece edge detection region.
5. The pole piece detection device of claim 4, wherein the first light source is an annular light source that surrounds an optical axis of the first image capture means.
6. The pole piece inspection device of claim 1, further comprising a second image capture device, a lens of the second image capture device aligned with the pole piece edge detection zone along a second direction, the second direction having an included angle with the first direction.
7. The pole piece inspection device of claim 6, wherein the mobile platform further comprises a second mobile mount movably disposed on the first mobile mount along the second direction, the second image capture device being disposed on the second mobile mount.
8. The pole piece inspection device of claim 6, wherein the second direction is perpendicular to the first direction, and wherein an optical axis of a lens of the second image capture device intersects perpendicularly an optical axis of a lens of the first image capture device.
9. The pole piece inspection device of claim 6, further comprising a second light source disposed on the first movable mount, the second light source and the second image capture device being disposed opposite sides of the pole piece edge detection zone along the second direction.
10. A pole piece detection system, comprising:
a bracket; and
a pole piece detection device as claimed in any one of claims 1 to 9, provided on the support.
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| CN202222947538.6U CN218896055U (en) | 2022-11-04 | 2022-11-04 | Pole piece detection equipment and pole piece detection system |
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| CN202222947538.6U CN218896055U (en) | 2022-11-04 | 2022-11-04 | Pole piece detection equipment and pole piece detection system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117849058A (en) * | 2024-03-06 | 2024-04-09 | 宁德时代新能源科技股份有限公司 | Detection system and detection method for pole piece |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117849058A (en) * | 2024-03-06 | 2024-04-09 | 宁德时代新能源科技股份有限公司 | Detection system and detection method for pole piece |
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