Battery milling apparatus and milling method

Abstract

A battery milling apparatus and milling method, the milling apparatus comprising a control device (1), a mounting platform (2), a positioning module (3), a code scanning mechanism (4), a milling mechanism (7), and a detection mechanism (5). The mounting platform (2) is provided with a mounting opening (2a), and a battery is disposed at the mounting opening (2a). An electrode terminal of the battery faces beneath the mounting platform (2), and the electrode terminal is exposed from the mounting opening (2a). The positioning module (3) is disposed on the mounting platform (2), and the control device (1) can control the positioning module (3) to position the battery. The control device (1) can control the code scanning mechanism (4) to scan a code of the battery, and the milling mechanism (7) is movably arranged below the mounting platform (2). The control device (1) can control the milling mechanism (7) to mill the electrode terminal. The detection mechanism (5) is disposed on the milling mechanism (7), and the detection mechanism (5) is configured to detect a position of the electrode terminal. Further provided is a battery milling method using a milling apparatus, which improves the production efficiency of battery milling.

Description

Milling device and milling method for battery

[0001] Cross-reference to related applications

[0002] The present disclosure is based on and claims priority to Chinese Patent Application No. 202410447855.2, filed on April 15, 2024, entitled "Milling device and milling method for battery", the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The present disclosure relates to the technical field of battery production, and particularly relates to a milling device and a milling method for battery. BACKGROUND

[0004] This section is intended to provide background or context to the embodiments of the present disclosure. The description herein is not admitted to be prior art merely by inclusion in this section.

[0005] New energy batteries are increasingly widely used in life and industry. For example, new energy vehicles equipped with batteries have been widely used. In addition, batteries are increasingly used in the field of energy storage and the like.

[0006] Due to the failure of production and assembly processes and the like, unqualified products may be produced in the module assembly process of lithium batteries. However, the battery can be reused after the electrode terminal surface is milled to reach the corresponding standard. The milling equipment in the related art needs manual positioning of the battery, and has the problems of low production efficiency, poor compatibility, and low product yield.

[0007] SUMMARY

[0008] Therefore, the embodiments of the present disclosure aim to provide a milling device and a milling method for battery with high automation, high production efficiency, high product yield, and high compatibility.

[0009] To achieve the above-mentioned purpose, a first aspect of the embodiments of the present disclosure provides a milling device for battery, comprising:

[0010] a control device;

[0011] a mounting platform provided with a mounting port, the battery is arranged at the mounting port, the electrode terminal of the battery faces the lower side of the mounting platform, and the electrode terminal is exposed to the mounting port;

[0012] a positioning module arranged on the mounting platform, the control device can control the positioning module to position the battery;

[0013] a code scanning mechanism, the control device can control the code scanning mechanism to scan the code of the battery;

[0014] a milling mechanism movably disposed below the mounting platform, wherein the control device is capable of controlling the milling mechanism to mill the electrode terminal;

[0015] a detection mechanism provided on the milling mechanism, the detection mechanism being configured to detect the position of the electrode terminal;

[0016] The positioning module includes a third positioning component for positioning the battery in the height direction. The third positioning component is arranged above the mounting port and includes a third motion mechanism and a clamping mechanism. The control device is configured to drive the third motion mechanism to drive the clamping mechanism to move in the height direction to approach or move away from the battery, and when the third positioning component is in a working state, the clamping mechanism is pressed on the battery under the action of elastic force.

[0017] In the milling device of the battery of the embodiment of the present disclosure, the control device can control the positioning module to position the battery, so that the milling device can be steplessly compatible with batteries of different sizes and different quantities within a certain range, thereby improving the degree of automation and production efficiency of the milling device. On the other hand, by setting a scanning mechanism to scan the battery, it is beneficial for the control device to bind the information of each battery, and the battery and its milling parameters can be recorded, intercepted, and traced back, thereby improving the product yield. On the other hand, by setting a detection mechanism to detect the position of the electrode terminal of the battery, the product yield is further improved. In addition, the positioning module is provided with a third positioning component for positioning the battery in the height direction. The clamping mechanism of the third positioning component is pressed on the battery under the action of elastic force, which can avoid hard contact between the pressing block and the battery, that is, while improving the reliability of the battery clamping, it can also reduce the probability of damaging the battery.

[0018] In some embodiments, the positioning module includes a first positioning component and a second positioning component, the first positioning component is configured to position the battery in a first direction, and the second positioning component is configured to position the battery in a second direction, and the first direction and the second direction intersect with the height direction; the control device is communicatively connected to at least one of the first positioning component, the second positioning component and the third positioning component.

[0019] In the milling device of the battery of the embodiment of the present disclosure, on the one hand, the positioning module comprises a first positioning assembly, a second positioning assembly and a third positioning assembly, the first positioning assembly is configured to position the battery in a first direction, the second positioning assembly is configured to position the battery in a second direction, and the third positioning assembly is configured to position the battery in a height direction, so that the positioning module can position the battery in different directions, and the milling device can be compatible with batteries of different sizes and different numbers within a certain range, thereby improving the automation degree and production efficiency of the milling device. On the other hand, the control device is communicatively connected with at least one of the first positioning assembly, the second positioning assembly and the third positioning assembly, and the control device can automatically control at least one of the first positioning assembly, the second positioning assembly and the third positioning assembly to position the battery, thereby further improving the automation degree of the battery positioning and improving the production efficiency. On the other hand, the battery is scanned by the scanning mechanism, which is conducive to the control device to bind the information of each battery, and the battery and its milling parameters can be recorded, intercepted and traced back, thereby improving the product yield. On the other hand, the position of the electrode terminal of the battery is detected by the detection mechanism, thereby further improving the product yield.

[0020] In some embodiments, the control device is communicatively connected with the first positioning assembly, the second positioning assembly and the third positioning assembly, and the control device is configured to control the first positioning assembly, the second positioning assembly and the third positioning assembly to position the battery in the first direction, the second direction and the height direction, respectively.

[0021] Here, the first positioning assembly, the second positioning assembly and the third positioning assembly of the positioning module are all communicatively connected with the control device, thereby further improving the automation degree of the milling device.

[0022] In some embodiments, the first positioning assembly comprises a first movement mechanism, and a first positioning member and a first moving member arranged at intervals along the first direction, and the control device is configured to drive the first movement mechanism to drive the first moving member to move along the first direction to approach or move away from the first positioning member.

[0023] Here, the first positioning assembly is configured to comprise the first positioning member and the first moving member, and the first moving member is configured to approach or move away from the first positioning member by moving along the first direction, so as to clamp the battery between the first positioning member and the first moving member, thereby achieving the positioning of the battery.

[0024] In some embodiments, the first positioning assembly further comprises a first driving mechanism, the first moving mechanism is connected with the first moving part through the first driving mechanism, and the first driving mechanism is configured to drive the first moving part to move along the first direction.

[0025] Here, since the pressing force of the battery by the first driving mechanism is easy to control, the reliability of positioning the battery is improved, and the probability of damaging the battery is reduced.

[0026] In some embodiments, the second positioning assembly comprises a second moving mechanism, and a second positioning part and a second moving part arranged in the second direction, the second moving mechanism is configured to drive the second moving part to move along the second direction to approach or move away from the second positioning part.

[0027] Here, by arranging the second positioning assembly to comprise the second positioning part and the second moving part, the second moving part is used to clamp the battery between the second positioning part and the second moving part by moving along the second direction to approach or move away from the second positioning part, so as to realize the positioning of the battery.

[0028] In some embodiments, the second positioning assembly further comprises a second driving mechanism, the second moving mechanism is connected with the second moving part through the second driving mechanism, and the second driving mechanism is configured to drive the second moving part to move along the second direction.

[0029] Here, since the pressing force of the battery by the second driving mechanism is easy to control, the reliability of positioning the battery is improved, and the probability of damaging the battery is reduced.

[0030] In some embodiments, the third positioning assembly is arranged above the mounting port and comprises a third moving mechanism and a pressing mechanism, and the control device is configured to drive the third moving mechanism to drive the pressing mechanism to move along the height direction to approach or move away from the battery.

[0031] Here, by arranging the third positioning assembly to comprise the third moving mechanism and the pressing mechanism, after the battery is fixed by the first positioning assembly and the second positioning assembly, the third moving mechanism is used to drive the pressing mechanism to move along the height direction to approach or move away from the battery, so as to realize the fixing and positioning of the battery.

[0032] In some embodiments, the pressing mechanism comprises a connecting bracket and at least one pressing block group arranged on the connecting bracket, the pressing block parts in each pressing block group are arranged along the first direction, and each pressing block group is arranged along the second direction, and the third moving mechanism is connected with the connecting bracket.

[0033] Since the batteries are arranged along the first direction at the mounting port, by arranging the pressing block pieces in each pressing block group along the first direction, the pressing block pieces arranged along the first direction can be pressed on the batteries arranged along the first direction. When the number of the pressing block groups is multiple, each pressing block group is arranged along the second direction, at this time, along the second direction, one battery corresponds to multiple pressing block pieces, and the reliability of the pressing mechanism for pressing the batteries is improved.

[0034] In some embodiments, the connecting support is provided with a through hole, the pressing block piece comprises a pressing block and an elastic reset piece, and the pressing block is movably arranged in the through hole;

[0035] When the third positioning assembly is in the working state, the elastic reset piece generates an elastic force on the pressing block, so that the pressing block is pressed on the battery under the action of the elastic force.

[0036] In this embodiment, the pressing block piece is provided with the elastic reset piece and the pressing block, when the third positioning assembly is in the working state, the elastic reset piece generates an elastic force on the pressing block, so that the pressing block is pressed on the battery under the action of the elastic force, thus, the hard contact between the pressing block piece and the battery can be avoided, that is, the probability of damaging the battery can be reduced while the reliability of pressing the battery is improved.

[0037] In some embodiments, the third positioning assembly further comprises a position detection device, the position detection device detects the position of the pressing block, and outputs position information when the pressing block is in a preset position.

[0038] In this embodiment, the position detection device detects the position of the pressing block, and outputs the position information when the pressing block is in the preset position, thus, after the control device receives the position information output by the position detection device, it indicates that the pressing mechanism is in the working state (the pressing state), and the reliability of the third positioning assembly is improved. In addition, if some batteries are not assembled in place, the position detection device can also detect it in advance, so as to further reduce the probability of damaging the battery.

[0039] In some embodiments, the third positioning assembly further comprises a fourth movement mechanism, and the control device is configured to drive the fourth movement mechanism to drive the third movement mechanism to move along the second direction.

[0040] Here, the third positioning assembly is provided with the fourth movement mechanism, so that the fourth movement mechanism drives the third movement mechanism to move along the second direction, thus, the position of the pressing mechanism in the second direction is adjusted, and the battery can be pressed better.

[0041] In some embodiments, the milling device further comprises a bottom catching assembly, at least part of the structure of the bottom catching assembly is arranged below the battery, for supporting the battery falling through the installation opening.

[0042] Here, by arranging the bottom catching assembly, at least part of the structure of the bottom catching assembly is arranged below the battery, so that the battery falling through the installation opening can be supported on the bottom catching assembly below, improving the situation that the battery is damaged due to falling from the installation opening, and without spending time to pick up the fallen battery, improving the production efficiency.

[0043] In some embodiments, the bottom catching assembly comprises a fifth movement mechanism arranged on the installation platform and a bottom catching plate arranged below the battery, the fifth movement mechanism is configured to drive the bottom catching plate to move in the second direction.

[0044] In this embodiment, by arranging the bottom catching assembly to comprise a fifth movement mechanism and a bottom catching plate, the fifth movement mechanism is configured to drive the bottom catching plate to move in the second direction, so that the bottom catching plate can be moved according to the size of the battery, realizing the control of the position of the bottom catching plate in the second direction, for example, to make the bottom catching plate located at the middle position of the battery in the second direction, improving the compatibility of the bottom catching assembly while improving the reliability of the bottom catching plate.

[0045] In some embodiments, the code scanning mechanism comprises a first code scanning assembly arranged above the installation platform, the first code scanning assembly comprises a sixth movement mechanism and a first code scanning piece, the sixth movement mechanism is configured to drive the first code scanning piece to move in the first direction to scan the end of the battery away from the electrode terminal; and / or,

[0046] The code scanning mechanism comprises a second code scanning assembly arranged below the installation platform, the second code scanning assembly is configured to scan the end of the battery provided with the electrode terminal.

[0047] In this embodiment, when the battery is in the assembled state, the electrode terminal of the battery faces downward, and the battery code faces upward, i.e. the battery code is arranged on the end of the battery away from the electrode terminal, the control device drives the first code scanning piece to move in the first direction by controlling the sixth movement mechanism, so as to scan each battery arranged in the first direction, which is conducive to the control device to bind the information of each battery, in addition, if the code scanning fails, the machine stops and alarms, the battery and its milling parameters can be recorded, intercepted and traced back, thereby improving the product yield.

[0048] In the assembled state of the battery, the electrode terminal of the battery faces downward, and the battery code also faces downward, that is, the battery code and the electrode terminal are arranged at the same end of the battery, the control device controls the second code scanning assembly to move in the first direction to scan the codes of the batteries arranged in the first direction, which facilitates the control device to bind the information of each battery, and if the code scanning fails, the control device stops and alarms, the battery and its milling parameters can be recorded, intercepted and traced back, thereby improving the product yield.

[0049] In some embodiments, the milling mechanism comprises a movement assembly and a milling cutter, the movement assembly is configured to drive the milling cutter to move in the first direction, the second direction and the height direction, and drive the detection mechanism to move in the first direction and the second direction, the first direction, the second direction and the height direction intersect.

[0050] In some embodiments, the milling device further comprises a housing and a dust collector, the mounting platform, the positioning module, the code scanning mechanism and the milling mechanism are arranged in the housing, and the dust collector is configured to suck the space in the housing.

[0051] In this embodiment, the housing is used to protect the internal parts, and can also improve the situation that debris splashes everywhere during milling. In addition, the dust collector is arranged to suck the space in the housing.

[0052] A second aspect of the embodiments of the present disclosure provides a battery milling method applied to a battery milling device, the battery milling device comprising a control device, a mounting platform, a positioning module, a code scanning mechanism, a detection mechanism and a milling mechanism;

[0053] The milling method comprises:

[0054] The control device controls the positioning module to position the battery and controls the code scanning mechanism to scan the code of the battery, wherein the positioning module comprises a third positioning assembly for positioning the battery in the height direction, the third positioning assembly is arranged above the mounting port and comprises a third movement mechanism and a pressing mechanism, the control device is configured to drive the third movement mechanism to drive the pressing mechanism to move in the height direction to approach or move away from the battery, and in the working state of the third positioning assembly, the pressing mechanism is pressed on the battery under the action of the elastic force;

[0055] The control device controls the detection mechanism to detect the position of the electrode terminal of the battery;

[0056] The control device controls the milling mechanism to mill the electrode terminal.

[0057] In the milling method of the battery of the embodiments of the present disclosure, on the one hand, the positioning module comprises a first positioning assembly, a second positioning assembly and a third positioning assembly, the first positioning assembly is configured to position the battery in a first direction, the second positioning assembly is configured to position the battery in a second direction, and the third positioning assembly is configured to position the battery in a height direction, so that the positioning module can position the battery in different directions, and the milling device can be compatible with batteries of different sizes and different numbers within a certain range, thereby improving the automation degree and production efficiency of the milling device. On the other hand, the control device is communicatively connected with at least one of the first positioning assembly, the second positioning assembly and the third positioning assembly, and the control device can automatically control at least one of the first positioning assembly, the second positioning assembly and the third positioning assembly to position the battery, thereby improving the automation degree of the battery positioning and the production efficiency. On the other hand, the battery is scanned by the scanning mechanism, which is conducive to the control device to bind the information of each battery, and the battery and its milling parameters can be recorded, intercepted and traced back, thereby improving the product yield. On the other hand, the position of the electrode terminal of the battery is detected by the detection mechanism, thereby further improving the product yield. In some embodiments, the scanning mechanism comprises a first scanning assembly arranged above the mounting platform and a second scanning assembly arranged below the mounting platform.

[0058] In some embodiments, the positioning module comprises a first positioning assembly, a second positioning assembly and a third positioning assembly, the first positioning assembly is configured to position the battery in a first direction, the second positioning assembly is configured to position the battery in a second direction, and the third positioning assembly is configured to position the battery in a height direction, the first direction, the second direction and the height direction intersect;

[0059] The control device is communicatively connected with at least one of the first positioning assembly, the second positioning assembly and the third positioning assembly.

[0060] In some embodiments, the control device controls the scanning mechanism to scan the battery comprises:

[0061] If the battery code of the battery is located at one end of the battery away from the electrode terminal, the control device controls the first scanning assembly to scan the battery;

[0062] If the battery code of the battery is located at one end of the battery provided with the electrode terminal, the control device controls the second scanning assembly to scan the battery.

[0063] In some embodiments, the first scanning assembly is arranged on the third positioning assembly;

[0064] The control device controls the positioning module to position the battery, including:

[0065] The control device controls the first positioning assembly to position the battery in the first direction, and controls the second positioning assembly to position the battery in the second direction.

[0066] The control device controls the first code scanning assembly to scan the code of the battery.

[0067] The control device controls the third positioning assembly to position the battery in the height direction. BRIEF DESCRIPTION OF DRAWINGS

[0068] FIG. 1 is a structural schematic diagram of a milling device according to an embodiment of the present disclosure;

[0069] FIG. 2 is a structural schematic diagram of the milling device shown in FIG. 1 from a first perspective and omitting a shell;

[0070] FIG. 3 is a structural schematic diagram of the milling device shown in FIG. 1 from a second perspective and omitting the shell;

[0071] FIG. 4 is a schematic diagram of a connection structure between a mounting platform and a positioning module according to an embodiment of the present disclosure;

[0072] FIG. 5 is an enlarged view of A in FIG. 4;

[0073] FIG. 6 is a schematic diagram of a connection structure between a mounting platform and a positioning module according to another embodiment of the present disclosure;

[0074] FIG. 7 is a schematic diagram of a connection structure between a mounting platform and a positioning module according to yet another embodiment of the present disclosure;

[0075] FIG. 8 is a schematic diagram of a connection structure between a mounting platform and a positioning module according to an embodiment of the present disclosure, wherein the positioning module omits a third movement mechanism and a pressing mechanism;

[0076] FIG. 9 is a schematic diagram of an implementation flow of a battery milling method according to an embodiment of the present disclosure.

[0077] REFERENCE SIGNS

[0078] 1, control device; 2, mounting platform; 2a, mounting port; 3, positioning module; 31, first positioning assembly; 311, first positioning piece; 312, first moving piece; 313, first movement mechanism; 314, first driving mechanism; 32, second positioning assembly; 321, second positioning piece; 322, second moving piece; 322a, bearing surface; 323, second movement mechanism; 324, second driving mechanism; 33, third positioning assembly; 331, third movement mechanism; 332, pressing mechanism; 3321, connecting bracket; 3322, pressing block piece; 33221, pressing block; 33222, elastic reset piece; 333, in-place detection device; 334, fourth movement mechanism; 4, code scanning mechanism; 41, first code scanning assembly; 411, sixth movement mechanism; 412, first code scanning piece; 42, second code scanning assembly; 5, detection mechanism; 6, bottom-picking assembly; 61, fifth movement mechanism; 62, bottom-picking plate; 7, milling mechanism; 71, movement assembly; 72, milling cutter; 73, tool setting instrument; 8, shell; 9, dust collector; 10, milling device. DETAILED DESCRIPTION

[0079] It should be noted that the embodiments and technical features in the present disclosure can be combined with each other without conflict, and the detailed description in the specific embodiments should be understood as an explanation of the purpose of the present disclosure, and should not be regarded as an improper limitation of the present disclosure.

[0080] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure; the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0081] In the description of the embodiments of the present disclosure, the technical terms "first", "second", "third" and the like are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present disclosure, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0082] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present disclosure. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0083] In the description of the embodiments of the present disclosure, the term "and / or" is merely an association relationship of the associated objects, and can represent three relationships, for example, A and / or B, which can represent three cases of A existing alone, A and B existing simultaneously, and B existing alone. In addition, the character " / " herein generally represents an "or" relationship between the front and rear associated objects.

[0084] In the description of the embodiments of the present disclosure, the orientations or positional relationships indicated by the technical terms "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", "height direction", "first direction", "second direction" and the like are based on the orientations or positional relationships shown in the drawings, and are merely for the convenience of describing the embodiments of the present disclosure and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed, operated or used in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present disclosure.

[0085] In the description of the embodiments of the present disclosure, unless otherwise explicitly specified and limited, the technical terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or can be integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0086] In the description of the embodiments of the present disclosure, unless otherwise explicitly specified and limited, the technical term "contact" should be understood in a broad sense, which can be direct contact or contact through an intermediate medium layer, and can be contact between two objects in contact without interaction force, or contact between two objects in contact with interaction force.

[0087] With the development of clean energy, more and more equipment uses electric energy as driving energy, and then as power battery which can store more electric energy and can be charged and discharged repeatedly, such as lithium ion battery. Among them, the power battery is not only applied to energy storage power supply systems such as hydroelectric, thermal, wind and solar power stations, but also widely used in electric bicycles, electric motorcycles, electric vehicles and other electric vehicles, as well as aerospace and other fields. With the continuous expansion of the application field of power battery, the market demand is also increasing.

[0088] In the embodiments of the present disclosure, the battery can be a battery cell. The battery cell refers to a basic unit capable of realizing mutual conversion between chemical energy and electrical energy, and can be used to manufacture a battery module or a battery pack, thereby being used to supply power to an electrical device. The battery cell can be a primary battery or a secondary battery, and the secondary battery refers to a battery cell that can be activated by charging after discharging. The battery cell can be a lithium ion battery, a sodium ion battery, a sodium lithium ion battery, a lithium metal battery, a sodium metal battery, a lithium sulfur battery, a magnesium ion battery, a nickel-hydrogen battery, a nickel-cadmium battery, or a lead-acid battery, etc., and the embodiments of the present disclosure are not limited thereto. The battery cell can be in the shape of a cylinder, a cuboid, or other shapes, etc. It can be understood that the cylindrical battery in the embodiments of the present disclosure refers to a battery cell in the shape of a cylinder.

[0089] The battery cell includes an electrode assembly and an electrolyte, and the electrode assembly is composed of a positive electrode sheet, a negative electrode sheet, and a separator. The battery cell mainly works by moving metal ions between the positive electrode sheet and the negative electrode sheet. The positive electrode sheet includes a positive electrode current collector and a positive electrode active material layer, and the positive electrode active material layer is coated on the surface of the positive electrode current collector. The positive electrode current collector without the positive electrode active material layer protrudes from the positive electrode current collector with the positive electrode active material layer, and the positive electrode current collector without the positive electrode active material layer serves as a positive electrode tab. Taking a lithium ion battery as an example, the material of the positive electrode current collector can be aluminum, and the positive electrode active material can be lithium cobaltate, lithium iron phosphate, ternary lithium, or lithium manganate, etc. The negative electrode sheet includes a negative electrode current collector and a negative electrode active material layer, and the negative electrode active material layer is coated on the surface of the negative electrode current collector. The negative electrode current collector without the negative electrode active material layer protrudes from the negative electrode current collector with the negative electrode active material layer, and the negative electrode current collector without the negative electrode active material layer serves as a negative electrode tab. The material of the negative electrode current collector can be copper, and the negative electrode active material can be carbon or silicon, etc. In order to ensure that no fusing occurs when passing a large current, the number of positive electrode tabs is multiple and they are stacked together, and the number of negative electrode tabs is multiple and they are stacked together. The material of the separator can be PP (Polypropylene) or PE (Polyethylene), etc.

[0090] The battery cell also includes a packaging film (also known as a packaging adhesive) and a shell. The packaging film is wrapped on the outside of the electrode assembly, and the shell encapsulates the electrode assembly wrapped with the packaging film, forming a battery cell with a shell. For example, the packaging film can be a mylar film, and the shell can be an aluminum shell or a steel shell, etc. After the electrode assembly is wound into a shape, the packaging of the mylar film and the shell is completed through the Mylar packaging process and the shell entering process. Among them, the mylar film plays a role in sealing and protecting the electrode assembly, and the mylar film can effectively insulate the electrode assembly and the shell from each other, avoiding internal short circuit of the battery cell. The shell plays a protective role.

[0091] In the production process of the battery, due to the failure of the process such as production and assembly, the battery will produce unqualified products in the module assembly process, but the battery can be reused after the one side provided with the electrode terminal is milled to reach the corresponding standard. The milling equipment in the related technology needs manual positioning of the battery, and has the problems of low production efficiency, poor compatibility, and low product yield. Moreover, it cannot intercept and trace back, lacks battery scanning function, cannot bind and record the single battery PN and milling parameters, that is, cannot bind and collect the battery material code and production information. In addition, it cannot accurately mill, and the point sampling mode of the electrode terminal height measurement has the problem of low accuracy.

[0092] The milling device for battery provided by the embodiment of the present disclosure comprises a control device 1, a mounting platform 2, a positioning module 3, a scanning mechanism 4, a milling mechanism 7, and a detection mechanism 5. The mounting platform 2 is provided with a mounting port 2a, and the battery is arranged at the mounting port 2a. The electrode terminal of the battery faces the lower side of the mounting platform 2, and the electrode terminal is exposed to the mounting port 2a. The positioning module 3 is arranged on the mounting platform 2, and the control device 1 can control the positioning module 3 to position the battery. The control device 1 can control the scanning mechanism 4 to scan the battery. The milling mechanism 7 is movably arranged below the mounting platform 2. The control device 1 can control the milling mechanism 7 to mill the electrode terminal. The detection mechanism 5 is arranged on the milling mechanism 7, and the detection mechanism 5 is configured to detect the position of the electrode terminal.

[0093] For example, the positioning module 3 comprises a first positioning assembly 31, a second positioning assembly 32, and a third positioning assembly 33. The first positioning assembly 31 is configured to position the battery in a first direction, the second positioning assembly 32 is configured to position the battery in a second direction, and the third positioning assembly 33 is configured to position the battery in a height direction. The first direction, the second direction, and the height direction intersect. The control device 1 is communicatively connected with at least one of the first positioning assembly 31, the second positioning assembly 32, and the third positioning assembly 33.

[0094] For example, referring to FIGS. 1 and 2, the milling device 10 further comprises a housing 8, and the mounting platform 2, the positioning module 3, the scanning mechanism 4, the milling mechanism 7, and the detection mechanism 5 are arranged in the housing 8. The housing 8 is used to protect the internal components, and can also improve the situation that the debris splashes everywhere during the milling process.

[0095] Here, the control device is used to control the running process of the positioning module 3, the scanning mechanism 4, the milling mechanism 7, and the detection mechanism 5, etc. The control device can include but is not limited to at least one of an industrial computer, a programmable logic controller (PLC), an upper computer, etc. The upper computer can be, for example, a server, a notebook computer, a tablet computer, a desktop computer, a smart phone, etc.

[0096] Referring to FIG. 3 and FIG. 6, the mounting platform 2 is provided with a mounting port 2a, and the battery is arranged at the mounting port 2a. Here, the battery is arranged at the edge of the mounting port 2a, so that the electrode terminal of the battery faces the lower side of the mounting platform 2, and the electrode terminal is exposed to the mounting port 2a. In this way, it is beneficial for the milling mechanism 7 arranged below the mounting platform 2 to mill the electrode terminal.

[0097] The mounting port 2a is arranged through the mounting platform 2, so that the milling mechanism 7 arranged below the mounting platform 2 mills the electrode terminal. Here, the electrode terminal is, for example, a pole.

[0098] The positioning module 3 includes a first positioning assembly 31, a second positioning assembly 32, and a third positioning assembly 33. The first positioning assembly 31 is configured to position the battery in a first direction, the second positioning assembly 32 is configured to position the battery in a second direction, and the third positioning assembly 33 is configured to position the battery in a height direction. Here, the positioning module 3 positions the battery in the first direction, the second direction, and the height direction, so as to improve the reliability of positioning the battery.

[0099] Referring to FIG. 2 and FIG. 3, the first direction, the second direction, and the height direction intersect, that is, none of them is parallel. For example, the first direction, the second direction, and the height direction are perpendicular to each other.

[0100] For ease of description, in the disclosure, the first direction is, for example, the X-axis direction, the second direction is, for example, the Y-axis direction, and the height direction is, for example, the Z-axis direction.

[0101] For example, a plurality of batteries are arranged in the first direction at a time.

[0102] The control device 1 is communicatively connected to at least one of the first positioning assembly 31, the second positioning assembly 32, and the third positioning assembly 33, that is, the control device 1 can control driving at least one of the first positioning assembly 31, the second positioning assembly 32, and the third positioning assembly 33.

[0103] It can be understood that the control device 1 can be capable of controlling one of the first positioning assembly 31, the second positioning assembly 32, and the third positioning assembly 33 to position the battery, or can be capable of controlling any two of the first positioning assembly 31, the second positioning assembly 32, and the third positioning assembly 33 to position the battery, or can be capable of controlling all of the first positioning assembly 31, the second positioning assembly 32, and the third positioning assembly 33 to position the battery.

[0104] The control device 1 can control the scanning mechanism 4 to scan the battery, which is conducive to the control device binding the information of each battery, and the battery and its milling parameters can be recorded, intercepted and traced back, thereby improving the product yield and further improving the degree of automation.

[0105] Referring to FIG. 3, the detection mechanism 5 is configured to detect the position of the electrode terminal, for example, to detect the height of the electrode terminal. Here, the detection mechanism 5 is arranged to detect the height of the electrode terminal, thereby improving the accuracy of the detection of the height of the electrode terminal and improving the product yield.

[0106] The specific type of the detection mechanism 5 is not limited here. For example, the detection mechanism 5 is a 3D camera.

[0107] In the milling device for the electrode terminal battery of the embodiments of the present disclosure, on the one hand, the positioning module 3 includes a first positioning assembly 31, a second positioning assembly 32 and a third positioning assembly 33. The first positioning assembly 31 is configured to position the battery in a first direction. The second positioning assembly 32 is configured to position the battery in a second direction. The third positioning assembly 33 is configured to position the battery in a height direction. This can enable the positioning module 3 to position the battery in different directions. Thus, the milling device 10 can be steplessly compatible with batteries of different sizes and different quantities within a certain range, thereby improving the degree of automation and production efficiency of the milling device 10. On the other hand, the control device 1 is communicatively connected to at least one of the first positioning assembly 31, the second positioning assembly 32 and the third positioning assembly 33. The control device 1 can automatically control at least one of the first positioning assembly 31, the second positioning assembly 32 and the third positioning assembly 33 to position the battery, thereby further improving the degree of automation of the positioning of the battery and improving the production efficiency. On the other hand, the scanning mechanism 4 is arranged to scan the battery, which is conducive to the control device binding the information of each battery. That is, the battery material code can be bound with the production information collection. The battery and its milling parameters can be recorded, intercepted and traced back, thereby improving the product yield. On the other hand, the detection mechanism 5 is arranged to detect the position of the electrode terminal of the battery, thereby further improving the product yield.

[0108] In some embodiments, referring to FIGS. 1-3, the control device 1 is communicatively connected to the first positioning assembly 31, the second positioning assembly 32 and the third positioning assembly 33. The control device 1 is configured to control the first positioning assembly 31, the second positioning assembly 32 and the third positioning assembly 33 to position the battery in a first direction, a second direction and a height direction, respectively.

[0109] Here, by connecting the first positioning component 31, the second positioning component 32 and the third positioning component 33 of the positioning module 3 with the control device 1, the degree of automation of the milling device 10 is further improved.

[0110] It should be noted that the specific structure of the first positioning component 31 is not limited here.

[0111] In some embodiments, referring to FIGS. 2-6, the first positioning component 31 includes a first movement mechanism 313, and a first positioning piece 311 and a first moving piece 312 arranged at intervals along a first direction, and the control device 1 is configured to drive the first movement mechanism 313 to drive the first moving piece 312 to move along the first direction to approach or move away from the first positioning piece 311.

[0112] The specific type of the first movement mechanism 313 is not limited here, as long as it can at least drive the first moving piece 312 to move along the first direction. Exemplarily, the first movement mechanism 313 is a linear module.

[0113] The first moving piece 312 moving along the first direction to approach or move away from the first positioning piece 311 means that either the first positioning piece 311 and the first moving piece 312 can move, or the first positioning piece 311 is fixed on the mounting platform 2 and the first moving piece 312 can move. Here, by fixing the first positioning piece 311, it is beneficial to initially position the battery, and the first moving piece 312 moves to approach the first positioning piece 311, which is used to clamp the battery between the first positioning piece 311 and the first moving piece 312, thereby improving the accuracy of positioning.

[0114] The first positioning piece 311 and the first moving piece 312 are arranged at intervals, and the battery is arranged between the first positioning piece 311 and the first moving piece 312, and the first moving piece 312 moves along the first direction to approach or move away from the first positioning piece 311 to clamp the battery.

[0115] Here, by arranging the first positioning component 31 to include the first positioning piece 311 and the first moving piece 312, the first moving piece 312 moves along the first direction to approach or move away from the first positioning piece 311, which is used to clamp the battery between the first positioning piece 311 and the first moving piece 312, thereby achieving positioning of the battery.

[0116] In some embodiments, referring to FIGS. 2-6, the first positioning component 31 further includes a first driving mechanism 314, the first movement mechanism 313 is connected with the first moving piece 312 through the first driving mechanism 314, and the first driving mechanism 314 is configured to drive the first moving piece 312 to move along the first direction.

[0117] The first driving mechanism 314 is, for example, a pneumatic cylinder.

[0118] The interval distance between the first positioning member 311 and the first moving member 312 can be determined according to the number of batteries to be placed each time.

[0119] The first moving member 312 is driven by the first movement mechanism 313 to move along the first direction to approach or move away from the first positioning member 311, so as to control the interval distance between the first positioning member 311 and the first moving member 312, which is beneficial to place or take out the battery between the first positioning member 311 and the first moving member 312. Taking the installation of the battery as an example, after the battery is installed between the first positioning member 311 and the first moving member 312, the control device 1 controls the first moving member 312 to move towards the first positioning member 311 by controlling the first driving mechanism 314, so as to clamp the battery between the first positioning member 311 and the first moving member 312. Here, since the pressing force of the battery by the first driving mechanism 314 is easy to control, the reliability of the positioning of the battery is improved, and the probability of damaging the battery is reduced.

[0120] In some embodiments, referring to FIGS. 2-8, the second positioning assembly 32 comprises a second movement mechanism 323, and a second positioning member 321 and a second moving member 322 which are spaced apart along a second direction. The second movement mechanism 323 is configured to drive the second moving member 322 to move along the second direction to approach or move away from the second positioning member 321.

[0121] The interval distance between the second positioning member 321 and the second moving member 322 can be determined according to the size of the battery.

[0122] The specific type of the second movement mechanism 323 is not limited here, as long as it can at least drive the second moving member 322 to move along the second direction. Exemplarily, the second movement mechanism 323 is a linear module.

[0123] The second moving member 322 moving along the second direction to approach or move away from the second positioning member 321 means that either the second positioning member 321 and the second moving member 322 move, or the second positioning member 321 is fixed on the installation platform 2 and the second moving member 322 can move. Here, by fixing the second positioning member 321, the initial positioning of the battery is facilitated, and the second moving member 322 moves to approach the second positioning member 321 for clamping the battery between the second positioning member 321 and the second moving member 322, thereby improving the accuracy of positioning.

[0124] The second positioning member 321 and the second moving member 322 are spaced apart, and the battery is arranged between the second positioning member 321 and the second moving member 322, and the second moving member 322 moves along the second direction to approach or move away from the second positioning member 321 to clamp the battery.

[0125] Here, by setting the second positioning assembly 32 to include the second positioning member 321 and the second moving member 322, the second moving member 322 is used to clamp the battery between the second positioning member 321 and the second moving member 322 by moving to approach or move away from the second positioning member 321 along the second direction, so as to realize the positioning of the battery.

[0126] In some embodiments, please refer to FIGS. 2 to 8, the second positioning assembly 32 further includes a second driving mechanism 324, the second moving mechanism 323 is connected with the second moving member 322 through the second driving mechanism 324, and the second driving mechanism 324 is configured to drive the second moving member 322 to move along the second direction.

[0127] The second driving mechanism 324 is, for example, a pneumatic cylinder. By driving the second moving member 322 to move along the second direction to approach or move away from the second positioning member 321 through the second moving mechanism 323, the interval distance between the second positioning member 321 and the second moving member 322 is controlled, which is beneficial to place or take out the battery between the second positioning member 321 and the second moving member 322. Taking the installation of the battery as an example, after the battery is installed between the second positioning member 321 and the second moving member 322, the control device 1 drives the second moving member 322 to move to the direction of approaching the second positioning member 321 by controlling the second driving mechanism 324, so as to clamp the battery between the second positioning member 321 and the second moving member 322. Here, since the pressing force of the second driving mechanism 324 on the battery is easy to control, the reliability of the positioning of the battery is improved, and the probability of damaging the battery is reduced.

[0128] It should be noted that the specific setting mode of the battery is not limited here.

[0129] Exemplarily, the second positioning member 321 and the second moving member 322 are both provided with a bearing surface 322a. Before the battery is installed, the size of the battery can be determined according to the model of the battery, so as to control the second positioning member 321 and the second moving member 322 to move to a preset interval range, so as to assemble the battery between the second positioning member 321 and the second moving member 322, and the two ends of the battery along the second direction are respectively borne on the bearing surfaces 322a of the second positioning member 321 and the second moving member 322.

[0130] Of course, in other embodiments, the edges of the installation port 2a of the installation platform 2 along the two ends of the second direction can also be provided with bearing surfaces 322a, and the two ends of the battery along the second direction are respectively borne on the bearing surfaces 322a of the installation platform 2.

[0131] In some embodiments, referring to FIGS. 2-5, the third positioning assembly 33 is disposed above the mounting port 2a and includes a third movement mechanism 331 and a pressing mechanism 332. The control device 1 is configured to drive the third movement mechanism 331 to move the pressing mechanism 332 along the height direction to approach or move away from the battery.

[0132] The specific type of the third movement mechanism 331 is not limited here as long as it can drive the pressing mechanism 332 to move along the height direction. Exemplarily, the third movement mechanism 331 is a linear module.

[0133] Here, by disposing the third positioning assembly 33 to include the third movement mechanism 331 and the pressing mechanism 332, after the battery is fixed by the first positioning assembly 31 and the second positioning assembly 32, the third movement mechanism 331 is used to move the pressing mechanism 332 along the height direction to approach or move away from the battery, and the battery is pressed on the bearing surface 322a, thereby achieving the fixation and positioning of the battery.

[0134] It should be noted that the specific structure of the pressing mechanism 332 is not limited here.

[0135] In some embodiments, referring to FIGS. 2-5, the pressing mechanism 332 includes a connecting bracket 3321 and at least one pressing block group disposed on the connecting bracket 3321. The pressing block pieces 3322 in each pressing block group are arranged along a first direction, and the pressing block groups are arranged along a second direction. The third movement mechanism 331 is connected with the connecting bracket 3321.

[0136] The third movement mechanism 331 is connected with the connecting bracket 3321, that is, the third movement mechanism 331 drives the connecting bracket 3321 to achieve the movement of the pressing block groups.

[0137] Since the batteries are arranged along the first direction at the mounting port 2a, by arranging the pressing block pieces 3322 in each pressing block group along the first direction, the pressing block pieces 3322 arranged along the first direction can be correspondingly pressed on the batteries arranged along the first direction.

[0138] It should be noted that along the first direction, one battery can correspond to one pressing block piece 3322, or one battery can correspond to multiple pressing block pieces 3322.

[0139] The plurality of in the embodiments of the present disclosure means two or more.

[0140] The pressing mechanism 332 includes at least one pressing block group. It is indicated that the number of the pressing block groups can be one or more. When the number of the pressing block groups is more than one, the pressing block groups are arranged along the second direction. In this case, along the second direction, one battery corresponds to multiple pressing block pieces 3322, and the reliability of the pressing mechanism 332 in pressing the battery is improved.

[0141] In some embodiments, referring to FIGS. 4 and 5, the connecting bracket 3321 is provided with a through hole, the pressing block piece 3322 includes a pressing block 33221 and an elastic reset piece 33222, and the pressing block 33221 is movably arranged in the through hole. When the third positioning assembly 33 is in the working state, the elastic reset piece 33222 exerts an elastic force on the pressing block 33221, so that the pressing block 33221 is pressed on the battery under the elastic force.

[0142] It is to be noted that the specific type of the elastic reset piece 33222 is not limited herein, for example, it can be a tension spring, a compression spring, a torsion spring or other elastic pieces.

[0143] The pressing block 33221 is movably arranged in the through hole, that is, the pressing block 33221 can slide along the height direction in the through hole.

[0144] In this embodiment, the pressing block piece 3322 is provided with the elastic reset piece 33222 and the pressing block 33221. When the third positioning assembly 33 is in the working state, the elastic reset piece 33222 exerts an elastic force on the pressing block 33221, so that the pressing block 33221 is pressed on the battery under the elastic force. In this way, the hard contact between the pressing block piece 3322 and the battery can be avoided, that is, the probability of damaging the battery can be reduced while the reliability of pressing the battery is improved.

[0145] In some embodiments, referring to FIGS. 4 and 5, the third positioning assembly 33 further includes a to-position detection device 333. The to-position detection device 333 detects the position of the pressing block 33221 and outputs to-position information when the pressing block 33221 is in a preset position.

[0146] Specifically, the in-place detection device 333 detects the position of the pressing block 33221 mainly through signal transmission. The signal transmitted by the in-place detection device 333 can be an induction signal, a trigger signal, etc. According to the setting position and / or detection method of the in-place detection device 333, the in-place detection device 333 can stop transmitting the signal when the pressing block 33221 reaches the preset position, and transmit the corresponding signal when the pressing block 33221 does not reach the preset position. That is, when the in-place detection device 333 transmits the corresponding signal, the output is non-in-place information, and when the in-place detection device 333 stops transmitting the signal, the output is in-place information. Alternatively, the in-place detection device 333 can transmit the corresponding signal when the pressing block 33221 reaches the preset position, and stop transmitting the signal when the pressing block 33221 does not reach the preset position. That is, when the in-place detection device 333 transmits the corresponding signal, the output is in-place information, and when the in-place detection device 333 stops transmitting the signal, the output is non-in-place information. In addition, according to the type of the in-place detection device 333 selected, there are different detection methods. For example, some in-place detection devices 333 only need one detection element to detect the position of the pressing block 33221, while some in-place detection devices 333 need one detection element to cooperate with other detection elements or trigger mechanisms to detect the position of the pressing block 33221.

[0147] Exemplarily, the in-place detection device 333 can be an ultrasonic detection device, a pressure detection device, an infrared detection device, a reflection sensor, etc.

[0148] In this embodiment, by setting the in-place detection device 333, the in-place detection device 333 detects the position of the pressing block 33221 and outputs in-place information when the pressing block 33221 is in the preset position. Thus, after the control device 1 receives the in-place information output by the in-place detection device 333, it indicates that the pressing mechanism 332 is in a working state (pressing state), which improves the reliability of the third positioning assembly 33. In addition, if some batteries are not assembled in place, the in-place detection device 333 can also detect it in advance, thereby reducing the probability of damaging the batteries.

[0149] In some embodiments, referring to FIGS. 2-6, the third positioning assembly 33 further comprises a fourth movement mechanism 334, and the control device 1 is configured to drive the fourth movement mechanism 334 to drive the third movement mechanism 331 to move in a second direction.

[0150] The specific type of the fourth movement mechanism 334 is not limited here, as long as it can drive the third movement mechanism 331 to move in the second direction. Exemplarily, the third movement mechanism 331 is a linear module.

[0151] Here, the third positioning assembly 33 is configured to drive the fourth motion mechanism 334 to move the third motion mechanism 331 along the second direction, so as to adjust the position of the pressing mechanism 332 along the second direction, and thus better press the battery.

[0152] In some embodiments, referring to FIGS. 6-8, the milling device 10 further comprises a catch assembly 6. At least part of the structure of the catch assembly 6 is arranged below the battery, and is configured to support the battery falling from the mounting port 2a.

[0153] It can be understood that, in order to facilitate the electrode terminal milling of the milling mechanism 7 arranged below the mounting platform 2, the mounting port 2a is arranged through the mounting platform 2, and when the battery is assembled, there is a possibility that the battery falls from the mounting port 2a, and if the battery falls from the mounting port 2a, there is a possibility that the battery is damaged, and it is difficult to pick up the fallen battery.

[0154] Here, by arranging the catch assembly 6, at least part of the structure of the catch assembly 6 is arranged below the battery, so that the battery falling from the mounting port 2a can be supported on the catch assembly 6 below, improving the situation that the battery is damaged due to falling from the mounting port 2a, and without spending time to pick up the fallen battery, the production efficiency is improved.

[0155] It should be noted that the specific structure of the catch assembly 6 is not limited here.

[0156] In some embodiments, referring to FIG. 8, the catch assembly 6 comprises a fifth motion mechanism 61 and a catch plate 62. The fifth motion mechanism 61 is arranged on the mounting platform 2, and the catch plate 62 is arranged below the battery. The fifth motion mechanism 61 is configured to drive the catch plate 62 to move along the second direction.

[0157] The specific type of the fifth motion mechanism 61 is not limited here, as long as it can drive the catch plate 62 to move along the second direction. Exemplarily, the fifth motion mechanism 61 is a linear module.

[0158] Exemplarily, the catch assembly 6 further comprises a slide rail arranged on one side of the mounting port 2a along the second direction. The fifth motion mechanism 61 is drivingly connected to one end of the catch plate 62 along the second direction, and the other end is slidably arranged on the slide rail.

[0159] Exemplarily, the catch assembly 6 further comprises a connecting plate connected to the fifth motion mechanism 61. One end of the connecting plate away from the fifth motion mechanism 61 is connected to the catch plate 62, so as to facilitate the arrangement of the catch plate 62 below the battery.

[0160] In this embodiment, by setting the bottoming assembly 6 to include a fifth movement mechanism 61 and a bottoming plate 62, the fifth movement mechanism 61 is configured to drive the bottoming plate 62 to move in the second direction, so that the bottoming plate 62 can be moved according to the size of the battery to realize the control of the position of the bottoming plate 62 in the second direction, for example, to make the bottoming plate 62 located at the middle position of the battery in the second direction, thereby improving the compatibility of the bottoming assembly 6 and the reliability of the bottoming plate 62.

[0161] It should be noted that the specific type of the code scanning mechanism 4 is not limited here,

[0162] In some embodiments, referring to FIGS. 6 and 7, the code scanning mechanism 4 includes a first code scanning assembly 41 arranged above the mounting platform 2. The first code scanning assembly 41 includes a sixth movement mechanism 411 and a first code scanning member 412. The sixth movement mechanism 411 is configured to drive the first code scanning member 412 to move in a first direction to scan the end of the battery away from the electrode terminal.

[0163] The specific type of the sixth movement mechanism 411 is not limited here, as long as it can drive the first code scanning member 412 to move in the first direction. Exemplarily, the sixth movement mechanism 411 is a linear module.

[0164] The specific type of the first code scanning member 412 is not limited here, and exemplarily, the first code scanning member 412 is, for example, a code scanning camera or a code scanning gun.

[0165] The specific type of the second code scanning member is not limited here, and exemplarily, the second code scanning member is, for example, a code scanning camera or a code scanning gun.

[0166] In this embodiment, when the battery is in the assembled state, the electrode terminal of the battery faces downward, and the battery code faces upward, that is, the battery code is arranged on the end of the battery away from the electrode terminal. The control device 1 drives the first code scanning member 412 to move in the first direction by controlling the sixth movement mechanism 411 to scan each battery arranged in the first direction, which is beneficial to the control device to bind the information of each battery. In addition, if the code scanning fails, the machine is stopped and an alarm is given, the battery and its milling parameters can be recorded, intercepted, and traced back, thereby improving the product yield.

[0167] In some embodiments, referring to FIG. 2, the code scanning mechanism 4 includes a second code scanning assembly 42 arranged below the mounting platform 2, and the second code scanning assembly 42 is configured to scan the end of the battery provided with the electrode terminal.

[0168] In the embodiment, when the battery is in the assembled state, the electrode terminal of the battery faces downward, and the battery code also faces downward, that is, the battery code is arranged at the same end of the battery as the electrode terminal, the control device 1 controls the second code scanning assembly 42 to move in the first direction to scan the codes of the batteries arranged in the first direction, which is beneficial to the control device to bind the information of each battery, and in addition, if the code scanning fails, the device stops and alarms, the battery and its milling parameters can be recorded, intercepted, and traced back, thereby improving the product yield.

[0169] For example, referring to FIG. 2, the second code scanning assembly 42 is arranged on the milling mechanism 7, and the control device 1 controls the milling mechanism 7 to drive the first code scanning piece 412 to move in the first direction to scan the codes of the batteries arranged in the first direction.

[0170] In some embodiments, referring to FIGS. 1 to 3, the milling device 10 further includes a housing 8 and a dust collector 9. The mounting platform 2, the positioning module 3, the code scanning mechanism 4, and the milling mechanism 7 are arranged in the housing 8, and the dust collector 9 is configured to suck the space in the housing 8.

[0171] For example, the housing 8 is provided with a safety door including an open state and a closed state, and the safety door can be opened to realize the change of the milling device 10 and the assembly of the battery.

[0172] In the embodiment, the housing 8 is used to protect the internal parts, and can also improve the situation that the debris splashes everywhere during the milling process. In addition, the dust collector 9 is arranged to suck the space in the housing 8.

[0173] In some embodiments, referring to FIGS. 2 and 3, the milling mechanism 7 includes a movement assembly 71 and a milling cutter 72, and the movement assembly 71 is configured to drive the milling cutter 72 to move in the first direction, the second direction, and the height direction, and drive the detection mechanism 5 to move in the first direction and the second direction.

[0174] It should be noted that the movement assembly 71 is, for example, a three-axis driving module.

[0175] In the embodiment, the milling mechanism 7 drives the milling cutter 72 to move in the first direction, the second direction, and the height direction through the movement assembly 71 to realize the milling of the electrode terminal, and drives the detection mechanism 5 to move in the first direction and the second direction through the movement assembly 71 to realize the code scanning of the battery.

[0176] The milling method of the battery provided in the embodiment of the present disclosure is applied to the milling device 10 of the battery. As shown in FIGS. 1 to 8, the milling device 10 includes a control device, a mounting platform 2, a positioning module 3, a code scanning mechanism 4, a detection mechanism 5, and a milling mechanism 7.

[0177] Fig. 9 is a flowchart of an implementation of a milling method of a battery according to an embodiment of the present disclosure. As shown in Fig. 9, the milling method of the battery includes the following steps S101-S103:

[0178] In step S101, the control device controls the positioning module to position the battery and controls the code scanning mechanism to scan the code of the battery. The positioning module includes a third positioning assembly configured to position the battery in a height direction. The third positioning assembly is arranged above the mounting port and includes a third moving mechanism and a pressing mechanism. The control device is configured to drive the third moving mechanism to move the pressing mechanism to approach or move away from the battery in the height direction. When the third positioning assembly is in a working state, the pressing mechanism is pressed against the battery under the action of an elastic force.

[0179] Here, the control device is configured to control the operation of the positioning module 3, the code scanning mechanism 4, the detection mechanism 5, the milling mechanism 7, and the like. The control device can include, but is not limited to, at least one of an industrial computer, a programmable logic controller (PLC), a host computer, and the like. The host computer can be, for example, a server, a notebook computer, a tablet computer, a desktop computer, a smart phone, and the like.

[0180] The control device 1 controls the positioning module 3 to position the battery, thereby improving the automation degree of positioning the battery and improving the production efficiency.

[0181] The positioning module 3 includes a first positioning assembly 31, a second positioning assembly 32, and a third positioning assembly 33. The first positioning assembly 31 is configured to position the battery in a first direction. The second positioning assembly 32 is configured to position the battery in a second direction. The third positioning assembly 33 is configured to position the battery in a height direction. Here, the positioning module 3 positions the battery from the first direction, the second direction, and the height direction, thereby improving the reliability of positioning the battery.

[0182] Please refer to Figs. 2 and 3. The first direction, the second direction, and the height direction intersect, that is, none of them is parallel. For example, the first direction, the second direction, and the height direction are perpendicular to each other.

[0183] For ease of description, in the present disclosure, the first direction is, for example, the X-axis direction, the second direction is, for example, the Y-axis direction, and the height direction is, for example, the Z-axis direction.

[0184] For example, a plurality of batteries are arranged in the first direction at a time.

[0185] The control device 1 is communicatively connected with at least one of the first positioning assembly 31, the second positioning assembly 32 and the third positioning assembly 33, that is, the control device 1 can control driving at least one of the first positioning assembly 31, the second positioning assembly 32 and the third positioning assembly 33.

[0186] It can be understood that the control device 1 can be capable of controlling one of the first positioning assembly 31, the second positioning assembly 32 and the third positioning assembly 33 to position the battery, can be capable of controlling any two of the first positioning assembly 31, the second positioning assembly 32 and the third positioning assembly 33 to position the battery, and can be capable of controlling all of the first positioning assembly 31, the second positioning assembly 32 and the third positioning assembly 33 to position the battery.

[0187] The control device 1 can control the code scanning mechanism 4 to scan the code of the battery, which is beneficial to control the device to bind the information of each battery, record the milling parameters of the battery, intercept and trace back, thereby improving the product yield and further improving the degree of automation.

[0188] In step S102, the control device controls the detection mechanism to detect the position of the electrode terminal of the battery.

[0189] Referring to FIG. 3, the detection mechanism 5 is configured to detect the position of the electrode terminal, for example, the height of the electrode terminal. Here, the detection mechanism 5 is arranged to detect the height of the electrode terminal, thereby improving the accuracy of the detection of the height of the electrode terminal and improving the product yield.

[0190] In step S103, the control device controls the milling mechanism to mill the electrode terminal.

[0191] In the milling method of the battery of the embodiments of the present disclosure, on the one hand, the positioning module 3 comprises a first positioning assembly 31, a second positioning assembly 32, and a third positioning assembly 33. The first positioning assembly 31 is configured to position the battery in a first direction. The second positioning assembly 32 is configured to position the battery in a second direction. The third positioning assembly 33 is configured to position the battery in a height direction. In this way, the positioning module 3 can position the battery in different directions, so that the milling device 10 can be compatible with batteries of different sizes and different numbers within a certain range, thereby improving the automation degree and production efficiency of the milling device 10. On the other hand, the control equipment 1 is communicatively connected with at least one of the first positioning assembly 31, the second positioning assembly 32, and the third positioning assembly 33. The control equipment 1 can automatically control at least one of the first positioning assembly 31, the second positioning assembly 32, and the third positioning assembly 33 to position the battery, thereby improving the automation degree of the battery positioning and the production efficiency. On the other hand, the battery is scanned by the scanning mechanism 4, which is beneficial to the control equipment to bind the information of each battery. The battery and its milling parameters can be recorded, intercepted, and traced back, thereby improving the product yield. On the other hand, the position of the electrode terminal of the battery is detected by the detection mechanism 5, thereby further improving the product yield.

[0192] In some embodiments, referring to FIGS. 2-7, the scanning mechanism 4 comprises a first scanning assembly 41 arranged above the mounting platform 2 and a second scanning assembly 42 arranged below the mounting platform 2.

[0193] The control equipment controls the scanning mechanism 4 to scan the battery, which comprises:

[0194] If the battery code of the battery is located at the end of the battery away from the electrode terminal, the control equipment controls the first scanning assembly 41 to scan the battery.

[0195] If the battery code of the battery is located at the end of the battery provided with the electrode terminal, the control equipment controls the second scanning assembly 42 to scan the battery.

[0196] The specific type of the first scanning component 412 is not limited herein. For example, the first scanning component 412 is a scanning camera or a scanning gun.

[0197] The specific type of the second scanning component is not limited herein. For example, the second scanning component is a scanning camera or a scanning gun.

[0198] The first scanning assembly 41 comprises a sixth movement mechanism 411 and a first scanning component 412. The sixth movement mechanism 411 is configured to drive the first scanning component 412 to move in a first direction to scan the end of the battery away from the electrode terminal.

[0199] The specific type of the sixth movement mechanism 411 is not limited here as long as it can drive the first scanning code piece 412 to move in the first direction. Exemplarily, the sixth movement mechanism 411 is a linear module.

[0200] In this embodiment, when the battery is in the assembled state, the electrode terminal of the battery faces downward, and the battery code faces upward, i.e., the battery code is arranged on the end of the battery away from the electrode terminal, the control device 1 drives the first scanning code piece 412 to move in the first direction by controlling the sixth movement mechanism 411 to scan the code of each battery arranged in the first direction, which is conducive to the control device to bind the information of each battery. In addition, if the code scanning fails, the machine stops and an alarm is given, the battery and its milling parameters can be recorded, intercepted, and traced back, thereby improving the product yield.

[0201] In this embodiment, when the battery is in the assembled state, the electrode terminal of the battery faces downward, and the battery code also faces downward, i.e., the battery code and the electrode terminal are arranged on the same end of the battery, the control device 1 drives the second scanning code assembly 42 to move in the first direction to scan the code of each battery arranged in the first direction, which is conducive to the control device to bind the information of each battery. In addition, if the code scanning fails, the machine stops and an alarm is given, the battery and its milling parameters can be recorded, intercepted, and traced back, thereby improving the product yield.

[0202] Exemplarily, referring to FIG. 2, the second scanning code assembly 42 is arranged on the milling mechanism 7, and the control device 1 drives the second scanning code piece to move in the first direction by controlling the milling mechanism 7 to scan the code of each battery arranged in the first direction.

[0203] In some embodiments, referring to FIGS. 3-7, the first scanning code assembly 41 is arranged on the third positioning assembly 33;

[0204] The control device controls the positioning module 3 to position the battery, which includes:

[0205] The control device controls the first positioning assembly 31 to position the battery in the first direction, and controls the second positioning assembly 32 to position the battery in the second direction.

[0206] The control device controls the first scanning code assembly 41 to scan the code of the battery.

[0207] The control device controls the third positioning assembly 33 to position the battery in the height direction.

[0208] In the embodiment, in the process of positioning the battery, the control device first controls the first positioning assembly 31 to position the battery in the first direction, and controls the second positioning assembly 32 to position the battery in the second direction. Then, the control device controls the first code scanning assembly 41 to scan the code of the battery. Here, the first code scanning assembly 41 can be driven by the third positioning assembly 33 to move along the second direction, so that the first code scanning component 412 is aligned with the code of the battery. After the code scanning is completed, the control device controls the third positioning assembly 33 to position the battery in the height direction.

[0209] The battery milling method provided by the embodiment of the present disclosure includes the following steps S201 to S215:

[0210] In step S201, the safety door of the milling device is manually opened.

[0211] In step S202, the battery is manually assembled to the mounting port, the electrode terminal of the battery faces downward of the mounting platform, and the electrode terminal is exposed to the mounting port.

[0212] In step S203, the safety door of the milling device is manually closed, and the start button is pressed, and the safety door is automatically locked.

[0213] In step S204, the first driving mechanism of the first positioning assembly is clamped to clamp the whole row of batteries between the first positioning component and the first moving component, and the second driving mechanism of the second positioning assembly is clamped to clamp the whole row of batteries between the second positioning component and the second moving component.

[0214] In step S205, the control device controls the third positioning assembly to position the battery, and controls the code scanning mechanism to scan the code of the battery.

[0215] If the battery code faces upward, the control device controls the first code scanning assembly to move along the first direction to scan the code of each battery arranged along the first direction, and controls the third positioning assembly to position the battery in the height direction.

[0216] If the battery code faces downward, the control device controls the third positioning assembly to position the battery in the height direction, and then controls the milling mechanism to drive the second code scanning component to move along the first direction to scan the code of each battery arranged along the first direction.

[0217] In step S206, the detection mechanism is arranged on the milling mechanism, and the control device controls the detection mechanism to detect the position of the electrode terminal.

[0218] If the battery code faces downward, the control device controls the milling mechanism to drive the second code scanning component to scan the code while the detection mechanism detects the position of the electrode terminal and generates 3D reference plane information.

[0219] Step S207, the control device controls the milling mechanism to mill the electrode terminal of the battery according to the numerical control program.

[0220] The milling mechanism drives the milling cutter to the tool setting gauge for tool setting, and compensates the tool height;

[0221] The milling mechanism drives the milling cutter to the battery electrode terminal battery below, the electric spindle of the milling mechanism is turned on, the dust collector is turned on, and the different 3D reference plane information of each battery is sequentially bound, and the battery electrode terminal battery is respectively milled.

[0222] Step S208, the milling action is completed, the milling mechanism withdraws the milling cutter to the preset safety position, the electric spindle of the milling mechanism is turned off, and the dust collector is turned off.

[0223] Step S209, the milling mechanism drives the detection mechanism to sequentially detect the plane height of each battery electrode terminal battery after milling, and the size NG is displayed as an alarm, and the milling result is bound and memorized to the industrial computer through the numerical control system, the detection mechanism and the PLC and the battery.

[0224] Step S210, the milling mechanism returns to the initial position, the third positioning assembly returns to the initial position, the first driving mechanism of the first positioning assembly and the second driving mechanism of the second positioning assembly are opened, and the safety door is automatically unlocked and lowered.

[0225] Step S211, the safety door is manually opened, and the battery is taken out.

[0226] In some embodiments, referring to FIGS. 2 and 7, the automatic quick model changing method of the milling device includes the following steps S301 to S315:

[0227] Step S301, manually selecting a corresponding battery blueprint program, and setting the feeding quantity (battery quantity);

[0228] Step S302, manually adjusting the positioning size of the second positioning assembly;

[0229] Step S303, closing the safety door and starting the automatic model changing;

[0230] Step S304, the first positioning assembly automatically adjusts the positioning size in the first direction;

[0231] Step S305, the bottoming assembly automatically adjusts the position of the bottoming plate, and the automatic model changing is completed.

[0232] In the description of the disclosure, the description of the terms "in an embodiment", "in some embodiments", "in other embodiments", "in yet other embodiments", or "exemplary" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the disclosure. In the disclosure, the illustrative expressions of the above terms are not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, different embodiments or examples described in the disclosure and the features of different embodiments or examples can be combined by those skilled in the art without contradiction, as long as they do not contradict each other.

[0233] The above only describes exemplary embodiments of the disclosure and is not intended to limit the disclosure. Those skilled in the art can make various modifications and changes to the disclosure. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the disclosure is included in the protection scope of the disclosure.

Claims

1. A battery milling device, comprising: a control device; a mounting platform provided with a mounting opening, the battery being arranged at the mounting opening, electrode terminals of the battery facing a lower side of the mounting platform and exposed outside the mounting opening; a positioning module arranged on the mounting platform, the control device being capable of controlling the positioning module to position the battery; a code scanning mechanism, the control device being capable of controlling the code scanning mechanism to scan the battery; a milling mechanism movably arranged below the mounting platform, the control device being capable of controlling the milling mechanism to mill the electrode terminals; a detection mechanism arranged on the milling mechanism, the detection mechanism being configured to detect a position of the electrode terminals; the positioning module comprises a third positioning assembly for positioning the battery in a height direction, the third positioning assembly being arranged above the mounting opening and comprising a third movement mechanism and a pressing mechanism, the control device being configured to drive the third movement mechanism to move the pressing mechanism along the height direction to approach or move away from the battery, and in a working state of the third positioning assembly, the pressing mechanism is pressed on the battery under the action of an elastic force. 2.The battery milling device of claim 1, the positioning module comprising a first positioning assembly and a second positioning assembly, the first positioning assembly being configured to position the battery in a first direction, the second positioning assembly being configured to position the battery in a second direction, the first direction and the second direction intersecting with the height direction; the control device being communicatively connected with at least one of the first positioning assembly, the second positioning assembly and the third positioning assembly.

3. The battery milling device of claim 2, wherein, the control device being communicatively connected with the first positioning assembly, the second positioning assembly and the third positioning assembly, the control device being configured to control the first positioning assembly, the second positioning assembly and the third positioning assembly to position the battery in the first direction, the second direction and the height direction, respectively.

4. The milling device of a battery according to claim 2 or 3, wherein, the first positioning assembly comprising a first movement mechanism, and first positioning members and first moving members arranged in the first direction at intervals, the control device being configured to drive the first movement mechanism to move the first moving members along the first direction to approach or move away from the first positioning members.

5. The battery milling device of claim 4, wherein, the first positioning assembly further comprising a first driving mechanism, the first movement mechanism being connected with the first moving members through the first driving mechanism, the first driving mechanism being configured to drive the first moving members to move along the first direction.

6. The battery milling device of any one of claims 2-5, wherein, the second positioning assembly comprising a second movement mechanism, and second positioning members and second moving members arranged in the second direction at intervals, the second movement mechanism being configured to drive the second moving members to move along the second direction to approach or move away from the second positioning members.

7. The battery milling device of claim 6, wherein, The second positioning assembly further comprises a second driving mechanism, the second movement mechanism is connected with the second moving part through the second driving mechanism, and the second driving mechanism is configured to drive the second moving part to move in the second direction.

8. The battery milling device of any one of claims 2-7, wherein, The pressing mechanism comprises a connecting support and at least one pressing block group arranged on the connecting support, the pressing block parts in each pressing block group are arranged in the first direction, and each pressing block group is arranged in the second direction, and the third movement mechanism is connected with the connecting support.

9. The battery milling device of claim 8, wherein, The connecting support is provided with a through hole, the pressing block part comprises a pressing block and an elastic reset part, and the pressing block is movably arranged in the through hole; When the third positioning assembly is in a working state, the elastic reset part generates an elastic force on the pressing block, so that the pressing block is pressed on the battery under the action of the elastic force.

10. The battery milling device of claim 9, wherein, The third positioning assembly further comprises a position detection device, the position detection device detects the position of the pressing block, and outputs a position information when the pressing block is in a preset position.

11. The battery milling device of any one of claims 2-10, wherein, The third positioning assembly further comprises a fourth movement mechanism, and the control device is configured to drive the fourth movement mechanism to drive the third movement mechanism to move in the second direction.

12. The battery milling device of any one of claims 1-11, wherein, The milling device further comprises a bottom supporting assembly, at least part of the structure of the bottom supporting assembly is arranged below the battery, and the bottom supporting assembly is used for supporting the battery falling through the mounting port.

13. The battery milling device of claim 12, wherein, The bottom supporting assembly comprises a fifth movement mechanism and a bottom supporting plate, the fifth movement mechanism is arranged on the mounting platform, the bottom supporting plate is arranged below the battery, and the fifth movement mechanism is configured to drive the bottom supporting plate to move in the second direction.

14. The battery milling device of any one of claims 1-13, wherein, The code scanning mechanism comprises a first code scanning assembly arranged above the mounting platform, the first code scanning assembly comprises a sixth movement mechanism and a first code scanning part, the sixth movement mechanism is configured to drive the first code scanning part to move in the first direction, so as to scan the end of the battery away from the electrode terminal; and / or, The code scanning mechanism comprises a second code scanning assembly arranged below the mounting platform, and the second code scanning assembly is configured to scan the end of the battery provided with the electrode terminal.

15. The battery milling device of any one of claims 1-14, wherein, The milling mechanism comprises a movement assembly and a milling cutter, the movement assembly is configured to drive the milling cutter to move in the first direction, the second direction and the height direction, and drive the detection mechanism to move in the first direction and the second direction, and the first direction, the second direction and the height direction intersect.

16. The battery milling device of any one of claims 1-15, wherein, The milling device further comprises a shell and a dust collector, the mounting platform, the positioning module, the code scanning mechanism and the milling mechanism are arranged in the shell, and the dust collector is configured to dust the space in the shell.

17. A battery milling method applied to a battery milling device, the battery milling device comprising a control device, a mounting platform, a positioning module, a code scanning mechanism, a detection mechanism and a milling mechanism; The milling method comprises: The control device controls the positioning module to position the battery and controls the code scanning mechanism to scan the battery, wherein the positioning module comprises a third positioning assembly for positioning the battery in a height direction, the third positioning assembly is arranged above the mounting port and comprises a third movement mechanism and a pressing mechanism, the control device is configured to drive the third movement mechanism to drive the pressing mechanism to move in the height direction to approach or move away from the battery, and when the third positioning assembly is in a working state, the pressing mechanism is pressed on the battery under the action of elastic force; The control device controls the detection mechanism to detect the position of the electrode terminal of the battery; The control device controls the milling mechanism to mill the electrode terminal.

18. The milling method of battery cells of claim 17, wherein, The positioning module comprises a first positioning assembly, a second positioning assembly and a third positioning assembly, the first positioning assembly is configured to position the battery in a first direction, the second positioning assembly is configured to position the battery in a second direction, and the third positioning assembly is configured to position the battery in a height direction, the first direction, the second direction and the height direction intersect; The control device is in communication connection with at least one of the first positioning assembly, the second positioning assembly and the third positioning assembly.

19. The milling method of battery cells of claim 18, wherein, The code scanning mechanism comprises a first code scanning assembly arranged above the mounting platform and a second code scanning assembly arranged below the mounting platform; The control device controls the code scanning mechanism to scan the battery, comprising: If the battery code of the battery is located at one end of the battery away from the electrode terminal, the control device controls the first code scanning assembly to scan the battery; If the battery code of the battery is located at one end of the battery provided with the electrode terminal, the control device controls the second code scanning assembly to scan the battery.

20. The method of milling a battery of claim 19, wherein, The first code scanning assembly is arranged on the third positioning assembly; The control device controls the positioning module to position the battery, comprising: The control device controls the first positioning assembly to position the battery in the first direction and controls the second positioning assembly to position the battery in the second direction; The control device controls the first code scanning assembly to scan the battery; The control device controls the third positioning assembly to position the battery in the height direction.

Images