CN114378052B - Pole piece cleaning system and method - Google Patents
Pole piece cleaning system and method Download PDFInfo
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- CN114378052B CN114378052B CN202111537017.7A CN202111537017A CN114378052B CN 114378052 B CN114378052 B CN 114378052B CN 202111537017 A CN202111537017 A CN 202111537017A CN 114378052 B CN114378052 B CN 114378052B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/0035—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like
- B08B7/0042—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like by laser
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention discloses a pole piece cleaning system and a method, wherein the system comprises: the transmission mechanism is used for transmitting the pole pieces on a preset transmission path; the adsorption platform is arranged on one side of the conveying path; the laser is arranged on the other side of the conveying path corresponding to the adsorption platform; the length direction position detection sensor is arranged on the adsorption platform and used for detecting the actual position of the notch of the surface A of the pole piece relative to the adsorption platform in the length direction when the notch exists on the surface A of the pole piece; the controller is in communication connection with the laser and the length direction position detection sensor and is used for adjusting the light-emitting optical path deflection of the laser in the length direction according to the actual position of the A-surface notch in the length direction relative to the adsorption platform, so that the laser cleans the B surface of the pole piece according to the adjusted light-emitting optical path deflection. The system can realize high-precision cleaning and processing by taking the notch of the surface A as a reference when cleaning the surface B of the pole piece and compensating deflection of the optical path, and effectively improves the cleaning and positioning precision of the notch.
Description
Technical Field
The invention relates to the technical field of battery pole piece cleaning, in particular to a pole piece cleaning system and a pole piece cleaning method.
Background
And (3) coating and cleaning the pole piece, wherein one key specification parameter is the alignment degree of notches on the front side and the back side after cleaning. Aiming at gap coating, the traditional method is to detect the initial edge of the gap coating, identify the signal of the initial edge of the gap coating, control the main driving module to move by a fixed length, pull the material belt to a cleaning position, and realize the positioning cleaning of the pole piece. This method has the following drawbacks:
1) The dislocation error of the front and back initial edges exists in the gap coating incoming material;
2) Under the influence of factors such as tension, main drive slippage and the like, a certain error exists when the main drive pulling material takes away the fixed length;
3) Certain errors exist in the gap coating starting edge;
4) In the advancing process of the material belt (pole piece), the deviation phenomenon exists, and the cleaning positioning platform is fixed.
The dislocation size of the notches on the front side and the back side (also called AB side) of the traditional method is +/-0.5 mm, and the dislocation precision is poor.
Disclosure of Invention
The present invention is directed to solving at least the problems of the prior art. Therefore, the invention provides a pole piece cleaning system and a pole piece cleaning method. Promote the washing positioning accuracy of notch, the AB face dislocation volume of notch is littleer than traditional mode.
In a first aspect of the present invention, a pole piece cleaning system is provided, including:
the transmission mechanism is used for transmitting the pole pieces on a preset transmission path;
the adsorption platform is arranged on one side of the conveying path and used for adsorbing the pole piece;
the laser is arranged on the other side of the conveying path corresponding to the adsorption platform and used for emitting laser beams to clean the pole piece;
the length direction position detection sensor is arranged on the adsorption platform and used for detecting the actual position of the notch of the surface A of the pole piece relative to the adsorption platform in the length direction when the notch exists on the surface A of the pole piece;
and the controller is in communication connection with the laser and the length direction position detection sensor and is used for adjusting the light-emitting optical path deflection of the laser in the length direction according to the actual position of the A-surface notch in the length direction relative to the adsorption platform so as to enable the laser to clean the B surface of the pole piece according to the adjusted light-emitting optical path deflection.
According to the embodiment of the invention, at least the following technical effects are achieved:
when the system is used for cleaning the surface B of the pole piece, the length direction position detection sensor is used for detecting the actual position of the notch of the surface A of the pole piece in the length direction, and the controller is used for adjusting the light-emitting optical path deflection of the laser in the length direction according to the actual position of the notch of the surface A in the length direction, so that the laser cleans the surface B of the pole piece according to the adjusted light-emitting optical path deflection. This system can be when the B face of wasing the pole piece to A face notch is the benchmark, realizes the high accuracy through light path beat compensation and washs processing, can eliminate interference factor, effectively promotes the washing positioning accuracy of notch, and the AB face dislocation volume of notch is littleer than traditional mode, can reach 0.1mm.
According to some embodiments of the present invention, the apparatus further comprises a width direction position detection sensor disposed on one side of the adsorption platform, the width direction position detection sensor is in communication connection with the controller, and the width direction position detection sensor is configured to detect an actual position of the a surface or the B surface of the pole piece in the width direction with respect to the adsorption platform; the controller is further used for adjusting the light-emitting optical path deflection of the laser in the width direction according to the actual position of the surface A or the surface B of the pole piece in the width direction relative to the adsorption platform, so that the laser cleans the surface A or the surface B of the pole piece according to the adjusted light-emitting optical path deflection.
According to some embodiments of the invention, the starting edge detection device further comprises a starting edge detection sensor arranged on one side of the adsorption platform, and the starting edge detection sensor is in communication connection with the controller and is used for detecting the position of the starting edge of the pole piece; the controller is also used for controlling the transmission mechanism to move the pole piece for a fixed length according to the detection result of the starting edge detection sensor.
According to some embodiments of the invention, the transport mechanism is a set of traction rollers.
In a second aspect of the present invention, a pole piece cleaning method is provided, where the pole piece cleaning system is applied to clean a pole piece, and the pole piece cleaning method includes:
after the surface A of the pole piece is cleaned, conveying the pole piece on the conveying path through the conveying mechanism, and adsorbing the pole piece through the adsorption platform;
detecting the actual position of the A-surface notch of the pole piece relative to the adsorption platform in the length direction through the length direction position detection sensor;
and adjusting the light-emitting optical path deflection of the laser in the length direction by the controller according to the actual position of the A-surface notch of the pole piece relative to the adsorption platform in the length direction, so that the laser cleans the B surface of the pole piece according to the adjusted light-emitting optical path deflection.
According to the embodiment of the invention, at least the following technical effects are achieved:
when the B surface of the pole piece is cleaned, the actual position of the notch of the A surface of the pole piece in the length direction is detected through the position detection sensor in the length direction, and then the deviation of the light-emitting optical path of the laser in the length direction is adjusted through the controller according to the actual position of the notch of the A surface in the length direction, so that the laser cleans the B surface of the pole piece according to the deviation of the adjusted light-emitting optical path. According to the method, when the surface B of the pole piece is cleaned, the notch of the surface A is used as a reference, high-precision cleaning and processing are realized through optical path deflection compensation, interference factors can be eliminated, the cleaning and positioning precision of the notch is effectively improved, the AB surface dislocation amount of the notch is smaller than that of a traditional mode, and the AB surface dislocation amount can reach +/-0.1 mm.
According to some embodiments of the present invention, the adjusting, by the controller, the deviation of the light-emitting optical path of the laser in the length direction according to the actual position of the a-surface notch of the pole piece in the length direction relative to the adsorption platform includes:
acquiring a cleaning position of the A-surface notch of the pole piece relative to the adsorption platform in the length direction;
calculating a first offset between the actual position of the A-surface notch of the pole piece relative to the adsorption platform in the length direction and the cleaning position of the A-surface notch of the pole piece relative to the adsorption platform in the length direction;
and adjusting the deflection of the light-emitting optical path of the laser in the length direction according to the first offset.
According to some embodiments of the invention, further comprising cleaning the a-side of the pole piece:
conveying the pole piece on the conveying path through the conveying mechanism, and adsorbing the pole piece through the adsorption platform;
detecting the actual position of the surface A of the pole piece in the width direction relative to the adsorption platform through a width direction position detection sensor;
and adjusting the light-emitting optical path deflection of the laser in the width direction by the controller according to the actual position of the surface A of the pole piece relative to the adsorption platform in the width direction, so that the laser cleans the surface A of the pole piece according to the adjusted light-emitting optical path deflection.
According to some embodiments of the present invention, the adjusting, by the controller, the deviation of the light path of the laser in the width direction according to the actual position of the surface a of the pole piece in the width direction relative to the adsorption platform includes:
calculating a second offset between the actual position of the surface A of the pole piece in the width direction relative to the adsorption platform and the machining datum line in the width direction;
and adjusting the deflection of the light-emitting optical path of the laser in the width direction according to the second offset.
According to some embodiments of the invention, before the detecting, by the longitudinal position detecting sensor, an actual position of the a-face notch of the pole piece in the longitudinal direction with respect to the adsorption platform, the method further includes:
detecting the actual position of the surface B of the pole piece in the width direction relative to the adsorption platform through the width direction position detection sensor;
and adjusting the deflection of the light-emitting optical path of the laser in the width direction by the controller according to the actual position of the surface B of the pole piece relative to the adsorption platform in the width direction.
According to some embodiments of the present invention, the adjusting, by the controller, the deviation of the light path of the laser in the width direction according to the actual position of the surface B of the pole piece in the width direction relative to the adsorption platform includes:
calculating a third offset between the actual position of the surface B of the pole piece in the width direction relative to the adsorption platform and the machining datum line in the width direction;
and adjusting the deviation of the light-emitting optical path of the laser in the width direction according to the third offset.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic diagram of a pole piece provided in accordance with an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a pole piece cleaning system according to an embodiment of the present invention;
FIG. 3 is a schematic view of a notch on the side A of a pole piece being cleaned according to an embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating lengthwise position compensation provided by an embodiment of the present invention;
FIG. 5 is a schematic illustration of lengthwise position compensation provided by another embodiment of the present invention;
FIG. 6 is a schematic diagram of lengthwise position compensation provided by another embodiment of the present invention;
FIG. 7 is a schematic diagram of width-wise position compensation provided by an embodiment of the present invention;
description of reference numerals:
100. pole pieces; 110. a coating layer; 120. a substrate; 130. a notch on the surface A; 140. a notch on the B surface; 200. a traction roller set; 300. an adsorption platform; 400. a laser; 410. a theoretical cleaning area of the notch on the surface B; 411. the cleaning position of the A-surface notch in the length direction; 500. a longitudinal position detection sensor; 600. a controller; 700. a widthwise position detection sensor; 800. a start edge detection sensor; 910. processing a datum line; l1: the dislocation between the notch of the surface A and the notch of the surface B; l2: a first offset; x, a second offset; y, width of the slot.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the system or component being referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, the pole piece 100 includes a coating layer 110, a substrate 120, an a-side notch 130 and a B-side notch 140, and according to the defects of the prior art, there is a misalignment L1 between the a-side notch and the B-side notch, which can usually reach ± 0.5mm, and the precision is poor. The traditional method is to detect the starting edge of the gap coating, control the main driving module to move for a fixed length after recognizing the signal of the starting edge of the gap coating, and pull the material belt to a cleaning position to realize the positioning cleaning of the pole piece. This method has the following drawbacks:
1) The dislocation error of the front and back initial edges exists in the gap coating incoming material;
2) Under the influence of factors such as tension, main drive slippage and the like, a certain error exists when the fixed length is taken away by the main drive pulling material;
3) Certain errors exist in the gap coating initial edge;
4) In the advancing process of the material belt, the deviation phenomenon exists, and the cleaning positioning platform is fixed.
The dislocation size of the notches on the front side and the back side of the traditional method is +/-0.5 mm, and the dislocation precision is poor.
In order to solve the technical problem, an embodiment of the present application provides a pole piece cleaning system, including: the transmission mechanism, the adsorption platform 300, the laser 400, the controller 600 and the length direction position detection sensor 500 are as follows:
and the transmission mechanism is used for transmitting the pole piece 100 on a preset transmission path.
And an adsorption platform 300 disposed below the conveying path for adsorbing the pole piece 100.
The laser 400 is disposed above the conveying path corresponding to the adsorption platform 300, and is used for emitting a laser beam to clean the pole piece 100.
And a longitudinal position detection sensor 500 provided on the adsorption platform 300 for detecting the actual position of the notch 130 on the surface a of the pole piece 100 in the longitudinal direction when the notch is present on the surface a of the pole piece 100.
And the controller 600 is in communication connection with the laser 400 and the longitudinal direction position detection sensor 500, and is configured to adjust the light-emitting optical path deflection of the laser 400 in the longitudinal direction according to the actual position of the a-side notch 130 in the longitudinal direction, so that the laser 400 cleans the B-side of the pole piece 100 according to the adjusted light-emitting optical path deflection.
The system can clean the AB surface of the pole piece 100, the A surface of the pole piece 100 is cleaned firstly by default, and then the B surface of the pole piece 100 is cleaned. Prior to cleaning of pole piece 100, laser 400 would have an initial cleaning path preset. A machining reference line 910 is preset in the width direction, as shown in fig. 7.
The method comprises the steps of cleaning the surface A of the pole piece on a station for cleaning the surface A, continuously moving the pole piece until the surface B of the pole piece is cleaned on a station for cleaning the surface B, and enabling the notch of the cleaned surface A to be overlapped with the notch of the surface B. In order to solve the above-mentioned drawback, the coincidence of the a-plane notch and the B-plane notch, which is realized to be cleaned out, is achieved, and with reference to fig. 2 to 6, the operation of the system is as follows:
as shown in fig. 3, the a-side of the pole piece 100 is firstly cleaned to obtain the a-side notch 130, and the cleaning position of the a-side notch 130 in the length direction is labeled 411 (only the left edge in the length direction is labeled) in this embodiment. As shown in fig. 4 and 5, in theory, the a-plane notch 130 of the pole piece 100 stays at the position shown in fig. 4, but actually, for the above reasons, in one case, it stays at the position shown in fig. 5, it should be noted that fig. 5 shows the "forward bias" phenomenon, and in another case, it goes wrong, and for convenience of description, the embodiment of the present application only uses the "forward bias" phenomenon for illustration, and the "backward bias" phenomenon can be solved by the system and method according to the embodiment of the present invention. After the surface a of the pole piece 100 is cleaned, the pole piece 100 is moved to the adsorption platform 300 through the transmission mechanism, and the adsorption platform 300 adsorbs the pole piece 100, wherein the transmission mechanism is the traction roller set 200. The actual position of the a-side notch 130 in the longitudinal direction is detected by the longitudinal position detection sensor 500 and fed back to the controller 600, as shown in fig. 5, and the dashed line on the right side of the figure indicates the actual position of the a-side notch 130 in the longitudinal direction (only the left edge in the longitudinal direction is indicated). The controller 600 calculates a first offset L2 between the actual position of the a-face notch 130 in the length direction and the cleaning position of the a-face notch 130 in the length direction, and in fig. 5, the distance between the left-side dotted line and the right-side dotted line is the first offset L2, and it should be noted that the cleaning position of the a-face notch 130 in the length direction here is a position recorded when the laser 400 actually cleans the a-face notch 130, as indicated by 411 (only the left edge is identified) in fig. 3. The controller 600 adjusts the deviation of the light-emitting optical path of the laser 400 in the length direction according to the first offset L2 (i.e., the optical path compensation amount in the length direction is provided according to the first offset L2), and finally the controller 600 drives the laser 400 to deviate according to the light-emitting optical path in the length direction, and emits a laser beam to clean the B surface of the pole piece 100, so as to obtain the cleaned B surface notch 140. Fig. 5 and 6 show a theoretical cleaning area 410 of the B-face notch 140 in the longitudinal direction and an actual cleaning area 420 of the B-face notch 140 in the longitudinal direction. It should be noted that the laser implementing the light-exiting optical path deflection is well known in the art and will not be described in detail here.
When the system is used for cleaning the surface B of the pole piece, the length direction position detection sensor is used for detecting the actual position of the notch of the surface A of the pole piece in the length direction, and the controller is used for adjusting the deflection of the light-emitting light path of the laser in the length direction according to the actual position of the notch of the surface A in the length direction, so that the laser can clean the surface B of the pole piece according to the deflection of the adjusted light-emitting light path. This system can be when the B face of wasing the pole piece to A face notch is the benchmark, realizes high accuracy through light path beat compensation and washs processing, can eliminate interference factor, effectively promotes the washing positioning accuracy of notch, and the AB face dislocation volume of notch is littleer than traditional mode, can reach 0.1mm.
Referring to fig. 2 and 7, in some embodiments, the system further includes a width direction position detection sensor 700 in communication with the controller 600, as shown in fig. 2, in this embodiment, the width direction position detection sensor 700 includes an emitting end and a receiving end, wherein the emitting end is disposed above the conveying path, the receiving end is disposed below the conveying path, and the width direction position detection sensor 700 is configured to detect an actual position of the a-side or the B-side of the pole piece 100 in the width direction; the controller 600 is further configured to adjust the light-emitting path deflection of the laser 400 in the width direction according to the actual position of the a-surface or the B-surface of the pole piece 100 in the width direction, so that the laser 400 cleans the a-surface or the B-surface of the pole piece 100 according to the adjusted light-emitting path deflection.
The following two cases are included:
in the first case: due to the above defects, when the face a of the pole piece 100 is cleaned, the pole piece 100 may shift in the width direction after being driven by the conveying mechanism and being adsorbed by the adsorption platform 300, resulting in inaccurate cleaning. In order to solve the defect, the system is provided with a width direction position detection sensor 700, the width direction position detection sensor 700 is configured to detect an actual position of the a surface of the pole piece 100 in the width direction, then the controller 600 adjusts an outgoing light path deflection of the laser 400 in the width direction according to a second offset X between the actual position of the a surface of the pole piece 100 in the width direction and the processing reference line 910 in the width direction (that is, an optical path compensation amount in the width direction is provided according to the second offset X), and finally the controller 600 drives the laser 400 to emit a laser beam according to the outgoing light path deflection in the width direction to clean the a surface of the pole piece 100, so as to obtain the cleaned a surface notch 130. As shown in fig. 7, the left diagram is a theoretical position (an ideal position where no deviation occurs) when the pole piece 100 is attracted, and the middle diagram and the right diagram are actual positions when the pole piece 100 is attracted, where there is a deviation error if no optical path adjustment is adopted for the case in the middle diagram, and the right diagram is a case where the optical path adjustment is performed. As shown in the left side of fig. 7, the notch width Y is a known parameter, and when the deviation occurs, as shown in the middle of fig. 7, there is a second deviation X between the actual position of the a plane in the width direction and the machining reference line 910 in the width direction, and the optical path is adjusted as shown in the right side of fig. 7. It should be noted that fig. 7 shows an "upward deviation" phenomenon of the pole piece, and certainly, a "downward deviation" phenomenon also exists, and in the embodiment of the present application, only the "upward deviation" phenomenon is used for illustration, and the "downward deviation" phenomenon can be solved by the system and the method according to the embodiment of the present invention.
In the second case: due to the above defects, when cleaning the B-side of the pole piece 100, the pole piece 100 may shift in the width direction after being driven by the conveying mechanism and being adsorbed by the adsorption platform 300, resulting in inaccurate cleaning, as shown in fig. 5. In order to solve the problem, the system is provided with a width direction position detection sensor 700, the width direction position detection sensor 700 is configured to detect an actual position of the B surface of the pole piece 100 in the width direction, then the controller 600 adjusts the light-exiting optical path deflection of the laser 400 in the width direction according to a third offset (not shown in the figure) between the actual position of the B surface of the pole piece 100 in the width direction and the processing reference line 910 in the width direction (that is, an optical path compensation amount in the width direction is provided according to the third offset), and finally the controller 600 drives the laser 400 to emit a laser beam to clean the B surface of the pole piece 100 according to the light-exiting optical path deflection in the length direction in combination with the light-exiting optical path deflection in the width direction.
In some embodiments, the system further comprises a leading edge detection sensor 800 in communication with the controller 600, as shown in fig. 2, in this embodiment, the leading edge detection sensor 800 is disposed at a side of the conveying path for detecting the position of the leading edge of the pole piece 100; the controller 600 is further configured to control the transport mechanism to move the pole piece 100 by a fixed length according to the detection result of the start edge detection sensor 800.
Referring to fig. 1 to 7, in an embodiment of the present invention, a pole piece cleaning system is provided, which includes a pole piece 100, a traction roller set 200, an adsorption platform 300, a laser 400, a controller 600, a length direction position detection sensor 500, a width direction position detection sensor 700, and a start edge detection sensor 800, wherein the controller 600 is electrically connected to the traction roller set 200, the laser 400, the length direction position detection sensor 500, the width direction position detection sensor 700, and the start edge detection sensor 800. The traction roller set 200 is used for conveying the pole piece 100 on a preset conveying path, the laser 400 is positioned above the conveying path, the longitudinal position detection sensor 500 is arranged on the adsorption platform 300, the width position detection sensor 700 is positioned above and below the conveying path, and the starting edge detection sensor 800 is positioned on the side of the conveying path.
In order to solve the technical defect that the dislocation precision between the a-surface notch 130 and the B-surface notch 140 is poor, the pole piece cleaning system provided by the application performs the following processing steps:
first, cleaning the a surface of the pole piece 100:
the starting edge detection sensor 800 detects the position of the starting edge of the pole piece 100, and then feeds the position back to the controller 600, the controller 600 controls the traction roller set 200 to draw the pole piece 100 to move for a fixed length, and the pole piece 100 is moved to the adsorption platform 300;
the adsorption platform 300 adsorbs the pole piece 100;
the actual position of the pole piece 100 in the width direction is detected by the width direction position detection sensor 700 and fed back to the controller 600;
the controller 600 calculates a second offset X between the position of the pole piece 100 in the width direction and the processing reference line 910 (preset), and then calculates the light-emitting optical path deflection of the laser 400 in the width direction according to the second offset X;
the controller 600 adjusts the initial cleaning optical path (preset) according to the adjusted deviation (width direction) of the outgoing optical path, and then controls the laser 400 to emit a laser beam to clean the a surface of the pole piece 100, so as to obtain the a surface notch 130. The controller 600 records the wash position 411 of the a-side notch 130 in the length direction as shown in fig. 3.
When the system is used for cleaning the surface A of the pole piece, the actual position of the pole piece in the width direction is detected through the width direction position detection sensor, then the controller calculates the offset between the position of the pole piece in the width direction and a processing reference line, finally the laser is controlled to perform light path compensation in the width direction, and finally the surface A notch 130 is accurately cleaned.
Secondly, cleaning the surface B of the pole piece 100:
after the surface A of the pole piece 100 is cleaned, the starting edge detection sensor 800 detects the position of the starting edge of the pole piece 100 and feeds back the position to the controller 600, and the controller 600 controls the traction roller set 200 to draw the pole piece 100 to move for a fixed length and move the pole piece 100 to the adsorption platform 300;
the adsorption platform 300 adsorbs the pole piece 100;
the actual position of the pole piece 100 in the width direction is detected by the width direction position detection sensor 700 and fed back to the controller 600;
the controller 600 calculates a third offset between the position of the pole piece 100 in the width direction and the processing reference line 910, and then calculates the deviation of the light-emitting optical path of the laser 400 in the width direction according to the third offset;
the actual position of the a-surface notch 130 in the length direction is detected by the length direction position detection sensor 500 and fed back to the controller 600;
the controller 600 calculates a first offset L2 between the actual position of the a-plane notch 130 in the length direction and the cleaning position of the a-plane notch 130 in the length direction, and calculates the light-emitting optical path deflection of the laser 400 in the length direction according to the first offset L2;
the controller 600 adjusts the light path of the initial cleaning light path according to the deviation of the light-emitting light path (the length direction and the width direction), and controls the laser 400 to emit a laser beam to clean the surface B of the pole piece 100, so as to obtain the surface B notch 140.
When the system is used for cleaning the surface B of the pole piece, the actual position of the pole piece in the width direction is detected through the width direction position detection sensor, and the offset between the position of the pole piece in the width direction and the machining datum line is calculated through the controller. Then, the actual position of the notch of the A surface in the length direction is detected through a position detection sensor in the length direction, the controller calculates the offset between the actual position of the notch of the A surface in the length direction and the cleaning position of the notch of the A surface in the length direction, finally, the laser is controlled to perform light path compensation in the width and length directions, and finally, the notch of the B surface is accurately cleaned.
Through above structure, effectively promote the washing positioning accuracy of notch, the positive and negative dislocation volume of notch is littleer than traditional mode, can reach 0.1mm.
In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (8)
1. A pole piece cleaning system, comprising:
the transmission mechanism is used for transmitting the pole pieces on a preset transmission path;
the adsorption platform is arranged on one side of the conveying path and used for adsorbing the pole piece;
the laser is arranged on the other side of the conveying path corresponding to the adsorption platform and used for emitting laser beams to clean the pole pieces;
the length direction position detection sensor is arranged on the adsorption platform and used for detecting the actual position of the notch of the surface A of the pole piece in the length direction relative to the adsorption platform when the notch of the surface A of the pole piece exists;
the controller is in communication connection with the laser and the length direction position detection sensor and is used for adjusting the light-emitting optical path deflection of the laser in the length direction according to the actual position of the A-surface notch in the length direction relative to the adsorption platform so that the laser cleans the B surface of the pole piece according to the adjusted light-emitting optical path deflection;
the width direction position detection sensor is arranged on one side of the adsorption platform and is in communication connection with the controller, and the width direction position detection sensor is used for detecting the actual position of the surface A or the surface B of the pole piece in the width direction relative to the adsorption platform; the controller is further used for adjusting the light-emitting optical path deflection of the laser in the width direction according to the actual position of the surface A or the surface B of the pole piece in the width direction relative to the adsorption platform, so that the laser cleans the surface A or the surface B of the pole piece according to the adjusted light-emitting optical path deflection;
the starting edge detection sensor is arranged on one side of the adsorption platform and is in communication connection with the controller, and the starting edge detection sensor is used for detecting the position of the starting edge of the pole piece; the controller is also used for controlling the transmission mechanism to move the pole piece for a fixed length according to the detection result of the starting edge detection sensor.
2. The pole piece cleaning system of claim 1, wherein the transport mechanism is a set of traction rollers.
3. A pole piece cleaning method is characterized in that the pole piece cleaning system of any one of claims 1 to 2 is applied to cleaning pole pieces, and the pole piece cleaning method comprises the following steps:
after the surface A of the pole piece is cleaned, conveying the pole piece on the conveying path through the conveying mechanism, and adsorbing the pole piece through the adsorption platform;
detecting the actual position of the A-surface notch of the pole piece relative to the adsorption platform in the length direction through the length direction position detection sensor;
and adjusting the light-emitting optical path deflection of the laser in the length direction by the controller according to the actual position of the A-surface notch of the pole piece relative to the adsorption platform in the length direction, so that the laser cleans the B surface of the pole piece according to the adjusted light-emitting optical path deflection.
4. The pole piece cleaning method according to claim 3, wherein the adjusting, by the controller, the deflection of the light-emitting optical path of the laser in the length direction according to the actual position of the slot on the surface A of the pole piece in the length direction relative to the adsorption platform comprises:
acquiring a cleaning position of the A-surface notch of the pole piece relative to the adsorption platform in the length direction;
calculating a first offset between the actual position of the A-surface notch of the pole piece relative to the adsorption platform in the length direction and the cleaning position of the A-surface notch of the pole piece relative to the adsorption platform in the length direction;
and adjusting the deflection of the light-emitting optical path of the laser in the length direction according to the first offset.
5. The pole piece cleaning method according to claim 3, further comprising cleaning the A surface of the pole piece:
conveying the pole piece on the conveying path through the conveying mechanism, and adsorbing the pole piece through the adsorption platform;
detecting the actual position of the surface A of the pole piece in the width direction relative to the adsorption platform through a width direction position detection sensor;
and adjusting the light-emitting optical path deflection of the laser in the width direction by the controller according to the actual position of the surface A of the pole piece relative to the adsorption platform in the width direction, so that the laser cleans the surface A of the pole piece according to the adjusted light-emitting optical path deflection.
6. The pole piece cleaning method according to claim 5, wherein the adjusting, by the controller, the deviation of the light-emitting optical path of the laser in the width direction according to the actual position of the surface a of the pole piece in the width direction relative to the adsorption platform comprises:
calculating a second offset between the actual position of the surface A of the pole piece in the width direction relative to the adsorption platform and the machining datum line in the width direction;
and adjusting the deflection of the light-emitting optical path of the laser in the width direction according to the second offset.
7. The pole piece cleaning method according to claim 5, further comprising, before the detecting an actual position of the A-face notch of the pole piece in the longitudinal direction with respect to the adsorption stage by the longitudinal position detecting sensor,:
detecting the actual position of the surface B of the pole piece in the width direction relative to the adsorption platform through the width direction position detection sensor;
and adjusting the deflection of the light-emitting optical path of the laser in the width direction by the controller according to the actual position of the surface B of the pole piece relative to the adsorption platform in the width direction.
8. The pole piece cleaning method according to claim 7, wherein the adjusting, by the controller, the deviation of the light-emitting optical path of the laser in the width direction according to the actual position of the surface B of the pole piece in the width direction relative to the adsorption platform comprises:
calculating a third offset between the actual position of the surface B of the pole piece in the width direction relative to the adsorption platform and the machining datum line in the width direction;
and adjusting the deviation of the light-emitting optical path of the laser in the width direction according to the third offset.
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| CN202111537017.7A CN114378052B (en) | 2021-12-13 | 2021-12-13 | Pole piece cleaning system and method |
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| CN202111537017.7A CN114378052B (en) | 2021-12-13 | 2021-12-13 | Pole piece cleaning system and method |
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| US5800625A (en) * | 1996-07-26 | 1998-09-01 | Cauldron Limited Partnership | Removal of material by radiation applied at an oblique angle |
| CN100569396C (en) * | 2008-11-11 | 2009-12-16 | 陈旅申 | The cleaning method of sheet type tinsel pole-piece pole-ear welding position coating and cleaning equipment thereof |
| CN105819259B (en) * | 2016-03-31 | 2017-03-08 | 华中科技大学 | A kind of band winding sideslip remedy deviation-rectifying system and its control method |
| CN107195978A (en) * | 2017-06-21 | 2017-09-22 | 徐州明润磁材有限公司 | A kind of method for removing battery pole piece coating |
| CN111151516B (en) * | 2020-01-10 | 2021-08-17 | 广东利元亨智能装备股份有限公司 | Method and device for improving laser cleaning precision |
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