Laser cutting mechanism

Abstract

The utility model relates to the technical field of battery manufacturing, and discloses a laser cutting mechanism, including: a frame; a laser assembly, arranged on the frame, for emitting a cutting laser to the surface of a pole piece to be cut; a back plate, arranged at intervals from the laser assembly, for supporting the pole piece to be cut; a traction assembly, arranged on one side of the back plate, for driving the pole piece to be cut to move; a dust removal assembly, arranged between the laser assembly and the back plate, for absorbing dust generated during laser cutting. The laser cutting mechanism provided by the utility model integrates the three processes of pole ear cutting, V-angle cutting and pole piece cutting into one process by utilizing laser cutting technology, thereby realizing continuous and efficient operation of the three processes. This improvement not only simplifies the production process, but also improves the utilization rate and production efficiency of the equipment, and provides strong technical support for the large-scale production of batteries.

Description

Technical Field

[0001] The utility model relates to the technical field of battery manufacturing equipment, in particular to a laser cutting mechanism. Background Art

[0002] As the core technology for the development of electric vehicles, lithium-ion power batteries play an indispensable role in promoting the progress of the entire industry. It is particularly worth mentioning that the application of square laminated battery technology in the field of large-capacity batteries has become a mainstream trend, leading the innovation of battery technology. In the production process, several key processes are particularly prominent, including tab cutting, V-angle cutting and pole piece cutting processes. These technologies ensure the quality and performance of the battery through precise cutting and cutting operations.

[0003] Specifically, if Figure 1 As shown in the figure, the tab cutting mechanism is to cut the tabs on the tab cutting die after the unrolled pole sheet material passes through the belt roller; the V-angle cutting mechanism is to cut the pole sheet material on the V-angle cutting die after the unrolled pole sheet material passes through the belt roller; the pole sheet cutting mechanism is to cut the pole sheet on the cutting die after the unrolled pole sheet material passes through the traction assembly. These three key processes jointly ensure the manufacturing quality and performance of the battery, and are the key factors in promoting the sustainable development of the electric vehicle industry.

[0004] At present, traditional equipment usually separates these three processes, requiring a tab cutting mechanism, a V-angle cutting mechanism, and a pole piece cutting mechanism. However, this production method is not only cumbersome, but also affects the overall production efficiency of the equipment.

[0005] Therefore, it is necessary to improve the existing technology.

[0006] The above information is presented as background information only to assist with understanding the present disclosure and no determination or admission is made as to whether any of the above may be used as prior art with respect to the present disclosure. Utility Model Content

[0007] The utility model provides a laser cutting mechanism to solve the problems of complicated working procedures and low overall production efficiency in the prior art.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A laser cutting mechanism, comprising:

[0010] frame;

[0011] A laser assembly, arranged on the frame, for emitting a cutting laser to the surface of the pole piece to be cut;

[0012] A back plate, spaced apart from the laser assembly, for supporting the pole piece to be cut;

[0013] A traction assembly, arranged on one side of the back plate, for driving the pole piece to be cut to move;

[0014] The dust removal component is arranged between the laser component and the back plate, and is used for absorbing dust generated during laser cutting.

[0015] Furthermore, the laser cutting mechanism further includes an adjustment mechanism;

[0016] The adjustment mechanism is arranged on the frame and connected to the laser assembly, and is used for adjusting the distance between the laser assembly and the pole piece to be cut.

[0017] Further, in the laser cutting mechanism, the laser components have at least two groups;

[0018] At least two groups of laser assemblies are arranged side by side.

[0019] Further, in the laser cutting mechanism, the laser assembly includes a laser and a field lens;

[0020] The laser is arranged on the frame and is used to emit cutting laser;

[0021] The field lens is arranged at the output end of the laser, and is used to focus the cutting laser emitted by the laser onto the surface of the pole piece to be cut.

[0022] Further, in the laser cutting mechanism, the dust removal component includes a dust removal cavity and a dust removal pipeline;

[0023] The dust removal chamber is used to absorb dust through negative pressure;

[0024] The dust removal duct is in communication with the dust removal cavity and is used for discharging the dust absorbed by the dust removal cavity.

[0025] Furthermore, in the laser cutting mechanism, a laser avoidance opening is provided on the dust removal cavity.

[0026] Furthermore, the laser cutting mechanism further includes a waste collection pipe;

[0027] The waste collecting pipe is arranged on a side of the back plate different from the traction assembly, and is used for collecting waste generated during laser cutting.

[0028] Furthermore, in the laser cutting mechanism, there are two waste collection pipes;

[0029] The two waste collecting pipes are symmetrically arranged relative to the back plate.

[0030] Compared with the prior art, the utility model has the following beneficial effects:

[0031] The utility model provides a laser cutting mechanism which integrates the three processes of tab cutting, V-angle cutting and pole piece cutting into one process by utilizing laser cutting technology, thereby realizing continuous and efficient operation of the three processes. This improvement not only simplifies the production process, but also improves the utilization rate and production efficiency of the equipment, thus providing strong technical support for the large-scale production of batteries.

[0032] The present invention has other characteristics and advantages, which will be apparent from the accompanying drawings and subsequent specific embodiments incorporated herein, or will be described in detail in the accompanying drawings and subsequent specific embodiments incorporated herein, which together are used to explain the specific principles of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 It is a schematic diagram of the process of cutting a pole piece in the prior art;

[0035] Figure 2 It is a structural (stereoscopic) schematic diagram of a laser cutting mechanism provided in the first embodiment of the utility model;

[0036] Figure 3 It is a schematic diagram of the structure (side view) of a laser cutting mechanism provided in the first embodiment of the utility model;

[0037] Figure 4 It is a structural (stereoscopic) schematic diagram of a laser assembly, a back plate, a dust removal assembly and a waste collection pipe provided in the first embodiment of the utility model;

[0038] Figure 5 It is a schematic diagram of the structure (front view) of the laser assembly, back plate, dust removal assembly and waste collection pipe provided in the first embodiment of the present invention.

[0039] Reference numerals:

[0040] Frame 1, laser assembly 2, back plate 3, traction assembly 4, dust removal assembly 5, adjustment mechanism 6, waste collection pipe 7;

[0041] Laser 201, field lens 202;

[0042] Dust removal chamber 501 and dust removal duct 502. DETAILED DESCRIPTION

[0043] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0044] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0045] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0046] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships may exist, for example, A and / or B, which means: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this article generally indicates that the objects before and after are in an "or" logical relationship.

[0047] In the present application, terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.

[0048] Without further limitations, in this application, the words "include", "comprises", "has" or other similar expressions used in the sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0049] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than", "less than", "exceed" and the like are understood to exclude the number itself; expressions such as "above", "below", "within" and the like are understood to include the number itself. In addition, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise clearly and specifically limited.

[0050] In the description of the embodiments of the present application, space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the referred device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0051] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms such as "install", "connect", "connect", "fix", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For technicians in the technical field to which the present application belongs, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0052] Embodiment 1

[0053] In view of the above-mentioned defects in the prior art, the applicant, based on many years of rich practical experience and professional knowledge in design and manufacturing in this field, and in conjunction with the application of theory, actively conducts research and innovation in the hope of creating a technology that can solve the defects in the prior art. After continuous research and design, and after repeated trial production and improvement, the present utility model with real practical value was finally created.

[0054] Please refer to Figure 2-5 , the utility model embodiment provides a laser cutting mechanism, comprising:

[0055] Rack 1;

[0056] A laser assembly 2, arranged on the frame 1, for emitting a cutting laser to the surface of the pole piece to be cut;

[0057] A back plate 3, spaced apart from the laser assembly 2, for supporting the pole piece to be cut;

[0058] A traction assembly 4, arranged on one side of the back plate 3, for driving the pole piece to be cut to move;

[0059] The dust removal component 5 is arranged between the laser component 2 and the back plate 3, and is used to absorb dust generated during laser cutting.

[0060] It should be noted that in order to overcome the problems of cumbersome processes and low production efficiency in traditional production methods, this embodiment provides a laser cutting mechanism, which aims to integrate the three processes of tab cutting, V-angle cutting and pole piece cutting into one process. This innovative application utilizes the high precision and high efficiency characteristics of laser cutting technology to achieve continuous and efficient operation of the three processes.

[0061] Specifically, the frame 1 serves as the supporting structure of the entire mechanism, ensuring the stability and accuracy of each component. The laser component 2 is the core component of the laser cutting mechanism. The laser component 2 can emit a high-energy laser beam. Through precise control, the laser beam is focused on the surface of the pole piece to be cut to achieve fast and accurate cutting. The back plate 3 is usually a solid structure. The back plate 3 is specifically arranged below the laser component 2, and can withstand the heat and force generated during the laser cutting process to ensure the stability and accuracy of the cutting process. The back plate 3 can also provide a smooth working surface to reduce the movement or deformation of the material during the cutting process. The traction component 4 drives the pole piece to be cut to move on the back plate by traction. In this way, the laser component 2 can continuously cut the moving pole piece, realizing efficient production operations. A certain amount of dust and smoke will be generated during the laser cutting process; in order to keep the working environment clean and prevent the dust from affecting the equipment and product quality, the dust removal component 5 is arranged between the laser component 2 and the back plate 3, which can effectively absorb and filter out the dust and smoke generated during the cutting process to ensure the cleanliness of the working environment and the smooth progress of the production process.

[0062] Understandably, laser cutting technology has many advantages. First, the precision of laser cutting is very high, which can ensure that every cutting point is accurate, thus ensuring the quality and performance of the battery. Secondly, the speed of laser cutting is very fast, and a large amount of cutting work can be completed in a short time, which greatly improves production efficiency. In addition, laser cutting technology is non-contact, which can avoid additional mechanical damage to the material and ensure the integrity and safety of the battery.

[0063] In the battery manufacturing process, the laser cutting mechanism can complete the three processes of tab cutting, V-angle cutting and pole piece cutting at one time. By precisely controlling the position and movement path of the laser beam, the laser cutting mechanism can accurately cut the tabs and V-angles of the required shape and size, and perform precise cutting operations on the pole piece strip. This integrated processing method not only simplifies the production process, reduces the conversion time and errors between processes, but also improves the utilization rate and production efficiency of the equipment.

[0064] Please refer again Figure 2-3 , in this embodiment, the laser cutting mechanism further includes an adjustment mechanism 6;

[0065] The adjustment mechanism 6 is disposed on the frame 1 and connected to the laser assembly 2, and is used to adjust the distance between the laser assembly 2 and the pole piece to be cut.

[0066] It should be noted that the distance between the laser assembly 2 and the pole piece to be cut can be accurately controlled by the adjustment mechanism 6, so as to ensure the focusing effect and cutting depth of the laser beam, thereby achieving the best cutting effect.

[0067] In the actual production process, the pole piece to be cut may vary due to factors such as material and thickness. Therefore, the introduction of the adjustment mechanism 6 makes the laser cutting mechanism more flexible and adaptable. The operator can adjust the distance between the laser assembly 2 and the pole piece to be cut through the adjustment mechanism 6 according to actual needs to ensure that each cutting can achieve the best effect.

[0068] Please refer again Figure 2-5 , in this embodiment, the laser assembly 2 has at least two groups;

[0069] At least two groups of laser assemblies 2 are arranged side by side.

[0070] It should be noted that this configuration enables the laser cutting mechanism to process multiple pole pieces at the same time, thereby achieving higher production efficiency. When the laser assemblies 2 are arranged side by side, they can cut multiple pole pieces at the same time, or continuously cut different parts of a single pole piece. This parallel processing method not only reduces the waiting time between devices, but also improves the overall utilization of the equipment.

[0071] Please refer again Figure 3-5 In this embodiment, the laser assembly 2 includes a laser 201 and a field lens 202;

[0072] The laser 201 is arranged on the frame 1 and is used to emit cutting laser;

[0073] The field lens 202 is disposed at the output end of the laser 201 and is used to focus the cutting laser emitted by the laser 201 onto the surface of the pole piece to be cut.

[0074] It should be noted that the structure of the laser assembly 2 in this embodiment is further optimized, and mainly includes two parts: a laser 201 and a field lens 202 .

[0075] Laser 201 is the core component of the entire laser cutting mechanism and is responsible for emitting cutting laser. It is firmly set on the frame 1 to ensure the stability and accuracy of the laser. Laser 201 adopts advanced laser technology and can generate high-energy and high-precision laser beams to provide powerful power for the cutting process.

[0076] The field lens 202 is arranged at the output end of the laser 201 and plays a focusing role. When the cutting laser emitted by the laser 201 passes through the field lens 202, it will be focused on the surface of the pole piece to be cut. This focusing effect makes the energy of the laser beam more concentrated, and the cutting effect is more accurate and efficient. At the same time, the field lens 202 can also adjust and optimize the laser beam as needed to adapt to pole pieces of different materials and thicknesses.

[0077] Please refer again Figure 3-5 In this embodiment, the dust removal assembly 5 includes a dust removal chamber 501 and a dust removal duct 502;

[0078] The dust removal chamber 501 is used to absorb dust through negative pressure;

[0079] The dust removal duct 502 is in communication with the dust removal cavity 501 and is used to discharge the dust absorbed by the dust removal cavity 501 .

[0080] It should be noted that the dust removal component 5 is a key part to ensure clean and efficient operation of the laser cutting process, and it mainly includes a dust removal chamber 501 and a dust removal pipeline 502.

[0081] The dust removal chamber 501 is designed to effectively absorb dust generated during the cutting process. It captures dust by generating negative pressure to ensure a clean working environment. The dust removal chamber usually has a certain volume to accommodate and temporarily store dust generated during the cutting process.

[0082] The dust removal duct 502 is connected to the dust removal chamber 501 and is responsible for discharging the dust in the dust removal chamber 501. The dust removal duct 502 usually has a certain length and diameter so as to transport the dust from the dust removal chamber to appropriate processing equipment, such as a dust collector or filter. Through these processing equipment, the dust can be effectively separated and collected, thereby avoiding pollution to the environment and production equipment.

[0083] In this embodiment, a laser avoidance opening is provided on the dust removal chamber 501 .

[0084] It should be noted that a laser avoidance port is specially provided on the dust removal chamber 501. The avoidance port is designed to ensure that the laser beam can smoothly pass through the dust removal chamber 501 without being blocked or scattered. The position and size of the laser avoidance port are carefully calculated and designed to ensure that the accuracy and stability of the laser beam are not affected.

[0085] Please refer again Figure 2-5 In this embodiment, the laser cutting mechanism further includes a waste collection pipe 7;

[0086] The waste collecting pipe 7 is arranged on a side of the back plate 3 different from the traction assembly 4 and is used to collect waste generated during laser cutting.

[0087] It should be noted that, in this embodiment, the laser cutting mechanism also introduces a waste collection pipe 7 to further improve the cleanliness and efficiency of the production process.

[0088] The waste collection pipe 7 is designed to collect waste generated during the laser cutting process, such as the cut pole piece scraps. In order to ensure the effective collection of waste, the waste collection pipe 7 is arranged on a side of the back plate 3 that is different from the traction assembly 4. Such a setting can prevent the waste from interfering with or colliding with the pole piece being towed, and ensure the smooth collection of waste.

[0089] In this embodiment, optionally, there are two waste collection pipes 7;

[0090] The two waste collection pipes 7 are symmetrically arranged relative to the back plate 3 .

[0091] It should be noted that, in order to improve the waste collection efficiency, two waste collection pipes 7 are provided in this embodiment, and the two pipes are symmetrically arranged relative to the back plate 3. This symmetrical design can ensure that the waste generated on both sides can be effectively collected, avoiding omission or blockage of the waste during the collection process.

[0092] Although the terms such as rack, laser assembly, back plate, traction assembly, dust removal assembly, adjustment mechanism, etc. are used more frequently in this application, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

[0093] The utility model provides a laser cutting mechanism which integrates the three processes of tab cutting, V-angle cutting and pole piece cutting into one process by utilizing laser cutting technology, thereby realizing continuous and efficient operation of the three processes. This improvement not only simplifies the production process, but also improves the utilization rate and production efficiency of the equipment, thus providing strong technical support for the large-scale production of batteries.

[0094] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of this application, this does not limit the scope of patent protection of this application. All technical solutions generated by replacing or modifying equivalent structures or equivalent processes based on the essential concept of this application using the contents recorded in the specification and drawings of this application, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are included in the scope of patent protection of this application.

Claims

1. A laser cutting mechanism, characterized in that: include: Rack (1); A laser assembly (2), arranged on the frame (1), and used for emitting a cutting laser to the surface of the pole piece to be cut; A back plate (3) is spaced apart from the laser assembly (2) and is used to support the pole piece to be cut; A traction assembly (4), arranged on one side of the back plate (3), and used for driving the pole piece to be cut to move; A dust removal component (5) is arranged between the laser component (2) and the back plate (3) and is used to absorb dust generated during laser cutting.

2. The laser cutting mechanism according to claim 1, characterized in that: Also includes an adjustment mechanism (6); The adjustment mechanism (6) is arranged on the frame (1) and connected to the laser component (2), and is used to adjust the distance between the laser component (2) and the pole piece to be cut.

3. The laser cutting mechanism according to claim 1, characterized in that: The laser components (2) have at least two groups; At least two groups of laser components (2) are arranged side by side.

4. The laser cutting mechanism according to claim 1 or 3, characterized in that: The laser assembly (2) comprises a laser (201) and a field lens (202); The laser (201) is arranged on the frame (1) and is used to emit cutting laser; The field lens (202) is arranged at the output end of the laser (201) and is used to focus the cutting laser emitted by the laser (201) onto the surface of the pole piece to be cut.

5. The laser cutting mechanism according to claim 1, characterized in that: The dust removal component (5) comprises a dust removal chamber (501) and a dust removal duct (502); The dust removal chamber (501) is used to absorb dust through negative pressure; The dust removal duct (502) is in communication with the dust removal cavity (501) and is used to discharge the dust absorbed by the dust removal cavity (501).

6. The laser cutting mechanism according to claim 5, characterized in that: The dust removal chamber (501) is provided with a laser avoidance opening.

7. The laser cutting mechanism according to claim 1, characterized in that: It also includes a waste collection pipeline (7); The waste collection pipe (7) is arranged on a side of the back plate (3) different from the traction assembly (4) and is used to collect waste generated during laser cutting.

8. The laser cutting mechanism according to claim 7, characterized in that: There are two waste collection pipes (7); The two waste collection pipes (7) are symmetrically arranged relative to the back plate (3).

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