Tab cutting tool

Abstract

The invention relates to the technical field of lithium ion battery processing, and discloses a tab cutting tool. The tab cutting tool comprises an upper cutter assembly and a lower cutter assembly, the upper cutter assembly comprises two upper ceramic cutters which are arranged separately, and the lower cutter assembly comprises two lower ceramic cutters which are matched with the corresponding upper ceramic cutters respectively; the upper cutter assembly is connected with an upper cutter position adjusting structure, and the lower cutter assembly is connected with a lower cutter position adjusting structure. The two sets of ceramic cutters are arranged separately, the position of each ceramic cutter can be independently adjusted, the cutting requirements of different lengths and gaps can be met, the application range is wider, and the problem that battery tabs of part of electronic terminals need to be cut twice is effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of lithium ion battery processing, and in particular to a tab cutting tool. Background Art

[0002] Most of the existing tab cutting tools use a method of fixing the position of the upper and lower cutting knives, so they can only cut tabs of the same size. For electronic terminals such as notebooks, their batteries not only need to have a higher battery capacity, but also have higher requirements for the battery's charge and discharge rate. Most of these lithium batteries use aluminum-to-nickel electrodes. For these lithium batteries that need to be converted to nickel, the existing tab cutting tools need to cut twice before they can be welded to the protection plate, and the processing efficiency is low. In addition, the tabs of this type of electromagnetic are thinner. In order to ensure the cutting gap, the existing tab cutting tools need to be used in conjunction with high-precision tooling molds. In addition, the production of such high-precision tooling molds requires high processing accuracy and high cost.

[0003] Therefore, for those skilled in the art, how to improve the processing efficiency of the tab cutting tooling and reduce the production cost has become a technical problem that needs to be solved urgently in this field.

[0004] 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. Summary of the invention

[0005] The object of the present invention is to provide a tab cutting tool to solve or at least partially solve the technical problems existing in the prior art.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] The present invention provides a tab cutting tool, comprising an upper cutter assembly and a lower cutter assembly that cooperate with each other to cut a tab of a battery cell, wherein the upper cutter assembly comprises two upper ceramic cutters that are separately arranged, and the lower cutter assembly comprises two lower ceramic cutters that respectively cooperate with a corresponding upper ceramic cutter;

[0008] The upper cutter assembly is connected to an upper cutter position adjustment structure, and the upper cutter position adjustment structure includes two upper adjustment assemblies for adjusting the cutting position of the upper ceramic cutter, and each of the two upper adjustment assemblies is connected to one of the upper ceramic cutters;

[0009] The lower cutter assembly is connected to a lower cutter position adjustment structure, and the lower cutter position adjustment structure includes two lower adjustment assemblies for adjusting the cutting position of the lower ceramic cutter, and each of the two lower adjustment assemblies is connected to one of the lower ceramic cutters.

[0010] Optionally, a positioning pad is also included;

[0011] The lower adjustment assembly comprises two lower limit blocks fixedly mounted on the positioning pad, the two lower limit blocks are slidably connected to a lower slider respectively, and the two lower ceramic cutters are fixedly connected to the two lower sliders respectively;

[0012] A lower adjusting screw is threadedly connected to one side of the lower sliding block away from the lower ceramic cutter, and one end of the lower adjusting screw away from the lower sliding block is rotatably mounted on a lower adjusting block fixedly connected to the positioning pad through a limiting structure.

[0013] Optionally, the upper cutter assembly further includes a drive assembly;

[0014] The driving assembly comprises a supporting structure mounted on the positioning pad, and a driving member is fixedly mounted on the supporting structure;

[0015] The upper cutter position adjustment structure comprises a driving plate connected to the driving rod of the driving member, two upper limit blocks are fixedly installed at the bottom of the driving plate, and each of the upper limit blocks is slidably connected to one of the upper sliders;

[0016] An upper adjustment block is also fixedly arranged on the driving plate; an upper adjustment screw is threadedly connected to the upper slider, and one end of the upper adjustment screw away from the upper slider is rotatably mounted and fixedly connected to the upper adjustment block through a limiting structure;

[0017] Wherein, the center lines of the lower adjusting screw and the upper adjusting screw are parallel.

[0018] Optionally, the upper adjusting screw and the lower adjusting screw are both screw structures with rod heads; the upper adjusting block and the lower adjusting block are both concave structures with grooves;

[0019] The screw rod structure comprises a threaded rod at one end for threaded connection with the upper slider or the lower slider, a positioning nut is fixedly arranged on the concave structure, and the other end of the threaded rod passes through the positioning nut and the groove in sequence and is connected to the rod head;

[0020] Wherein, the positioning nut is threadedly connected to the threaded rod; the positioning nut and the rod head are respectively abutted against opposite sides of the concave structure.

[0021] Optionally, the support structure includes an upper support plate and a first vertical plate;

[0022] A first mounting groove is provided on the top of the positioning pad, and the bottom end of the first vertical plate is fixedly connected in the first mounting groove; the top of the upper support plate is fixedly connected to the top end of the first vertical plate;

[0023] The driving member is installed on the top of the upper support plate, the bottom end of the driving rod passes through one side of the bottom of the upper support plate and is fixedly connected with a lifting block, and the lifting block is fixedly connected to the driving plate;

[0024] A sliding guide rail is fixedly installed on the first vertical plate, a limiting slider is slidably connected to the sliding guide rail, and the limiting slider is fixedly connected to the driving plate.

[0025] Optionally, the two lower sliding blocks are respectively provided with an "L"-shaped lower positioning groove on the opposite sides thereof, and the lower limit block is an "h"-shaped clamping structure matching the shape of the lower positioning groove;

[0026] An upper positioning slot in an L shape is respectively provided on one side of the two upper sliding blocks which are away from each other, and the upper limit block is an "h"-shaped clamping structure which matches the shape of the upper positioning slot.

[0027] Optionally, a cell positioning structure is provided on the positioning pad above the lower slider;

[0028] The top of the positioning pad is provided with fixed sliders on opposite sides of the lower cutter position adjustment structure; the battery cell positioning structure is provided with avoidance slide grooves corresponding to the positions of the fixed sliders, and the fixed sliders are slidably connected with the avoidance slide grooves;

[0029] The battery cell positioning structure is also symmetrically provided with a height adjustment structure for adjusting the height position of the battery cell positioning structure, and the bottom end of the height adjustment structure is connected to the positioning pad.

[0030] Optionally, the height adjustment structure comprises a cylindrical head screw and a round wire spring sleeved on the cylindrical head screw;

[0031] The bottom end of the cylindrical head screw is threadedly connected to the positioning pad, and the two ends of the round wire spring are respectively abutted against the top of the positioning pad and the bottom of the battery cell positioning structure.

[0032] Optionally, the battery cell positioning structure includes a battery cell positioning plate, and the two avoidance grooves are respectively opened on two width sides of the battery cell positioning plate;

[0033] A pair of first cell positioning blocks are slidably connected to the top of the cell positioning plate, a plurality of protrusions are protruding downwards from the bottom of the first cell positioning block, cell positioning grooves are respectively formed at positions corresponding to the protrusions on the cell positioning plate, and the protrusions are detachably fixedly connected to the cell positioning grooves;

[0034] The cell positioning blocks are in a stepped structure, and a second cell positioning block is detachably fixedly connected to the step surface of each cell positioning block, and the two second cell positioning blocks are respectively extended in a direction approaching each other to form a rib;

[0035] The two first battery cell positioning blocks and the two second battery cell positioning blocks are jointly arranged to form a positioning fixture for positioning the battery cell.

[0036] Optionally, a plurality of cell width positioning holes are provided in the cell positioning groove at intervals along the width direction of the cell; a first fixing piece for detachably fixing and connecting with the cell width positioning hole is inserted longitudinally through the position corresponding to the protrusion on the first cell positioning block;

[0037] A plurality of cell length positioning holes are provided on the step surface at intervals along the length direction of the cell; a second fixing piece for detachably fixing and connecting with the cell length positioning hole is inserted longitudinally through the second cell positioning block;

[0038] When the first fixing member is not fixedly connected to the battery cell width positioning hole, the protrusion can slide in the battery cell positioning groove along the width direction of the battery cell; when the second fixing member is not fixedly connected to the battery cell length positioning hole, the second battery cell positioning block can slide on the step surface along the length direction of the battery cell.

[0039] Compared with the prior art, the present invention has the following beneficial effects:

[0040] The tab cutting tool provided by the present invention has two sets of ceramic cutters that are separately arranged, and the position of each ceramic cutter can be adjusted independently, which can adapt to the cutting requirements of different lengths and gaps, has a wider range of applications, and effectively solves the problem that the battery tabs of some electronic terminals need to be cut twice.

[0041] The present invention has other features and advantages, which will be apparent from or will be described in detail in the accompanying drawings and the following detailed description incorporated herein, which together serve to explain the specific principles of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the present invention 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0043] Figure 1It is a schematic diagram of the three-dimensional structure of a tab cutting tool provided in an embodiment of the present invention.

[0044] Figure 2 It is a front view of a tab cutting tool provided by an embodiment of the present invention.

[0045] Figure 3 It is a partial structural schematic diagram of a tab cutting tool provided in an embodiment of the present invention.

[0046] Figure 4 It is a structural schematic diagram of a drive assembly of a tab cutting tool provided in an embodiment of the present invention.

[0047] Figure 5 It is a structural schematic diagram of one set of cutter position adjustment structures of a tab cutting tool provided by an embodiment of the present invention at a certain viewing angle.

[0048] Figure 6 It is a partial structural schematic diagram of a lower cutter position adjustment structure provided in an embodiment of the present invention.

[0049] Figure 7 The present invention is a schematic diagram of a connection structure between a lower adjustment block and a lower adjustment screw provided in an embodiment of the present invention.

[0050] Figure 8 It is a schematic diagram of the top structure of a positioning pad provided in an embodiment of the present invention.

[0051] Fig. 9 It is a structural schematic diagram of a battery cell positioning structure provided by an embodiment of the present invention.

[0052] In the figure:

[0053] 10. Driving member; 11. Driving rod; 100. Support structure; 101. Upper supporting plate; 102. First vertical plate; 1021. Sliding guide rail; 103. Second vertical plate; 20. Cell positioning structure; 21. Cell positioning plate; 211. Cell positioning groove; 22. Cell positioning block; 220. Step surface; 221. Bump; 23. Cell positioning block; 231. Sidewall; 232. Through hole; 30. Lower cutter position adjustment structure; 31. Lower adjustment screw; 311. Threaded rod; 312. Rod head; 313. Positioning nut; 32. Lower slider; 321. Lower positioning Slide groove; 33, lower ceramic cutter; 40, positioning pad; 401, waste groove; 402, first mounting groove; 403, second mounting groove; 41, lower limit block; 42, lower adjustment block; 421, groove; 43, fixed slider; 44, height adjustment structure; 45, fixed block; 46, rear baffle; 50, front baffle; 60, upper cutter position adjustment structure; 601, upper adjustment block; 61, upper ceramic cutter; 62, upper slider; 621, upper adjustment screw; 622, upper positioning slide groove; 63, upper limit block; 64, drive plate; 641, limit slider; 65, lifting block. DETAILED DESCRIPTION

[0054] 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.

[0055] 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.

[0056] 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.

[0057] 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.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] 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.

[0063] Example:

[0064] See also Figure 1-Figure 3 , Figure 1 is a schematic diagram of the structure of a pole piece provided by an embodiment of the present invention, Figure 1 1 is a schematic diagram of a three-dimensional structure of a tab cutting tool provided by an embodiment of the present invention. Figure 2 1 is a front view of a tab cutting tool provided by an embodiment of the present invention. Figure 3 It is a partial structural schematic diagram of a tab cutting tool provided by an embodiment of the present invention;

[0065] The tab cutting tool comprises an upper cutting knife assembly and a lower cutting knife assembly which cooperate with each other to cut the tab of the battery cell;

[0066] like Figure 3 As shown, the upper cutter assembly includes two upper ceramic cutters 61 that are separately arranged, and the lower cutter assembly includes two lower ceramic cutters 33 that are matched with a corresponding upper ceramic cutter 61;

[0067] like Figure 3 As shown, the upper cutter assembly is connected to an upper cutter position adjustment structure 60, and the upper cutter position adjustment structure 60 includes two upper adjustment assemblies for adjusting the cutting position of the upper ceramic cutter 61, and each of the two upper adjustment assemblies is connected to an upper ceramic cutter 61;

[0068] like Figure 1 As shown, the lower cutter assembly is connected to a lower cutter position adjustment structure 30 , and the lower cutter position adjustment structure 30 includes two lower adjustment assemblies for adjusting the cutting position of the lower ceramic cutter 33 , and the two lower adjustment assemblies are respectively connected to a lower ceramic cutter 33 .

[0069] The tab cutting tool provided in this embodiment has two sets of ceramic cutters (each set of ceramic cutters includes a matching upper ceramic cutter and a lower ceramic cutter) arranged separately, and the position of each ceramic cutter can be adjusted independently, so it can adapt to the cutting needs of different lengths and gaps, and has a wider range of applications, effectively solving the problem that the battery tabs of some electronic terminals need to be cut twice.

[0070] Furthermore, the tab cutting tool further includes a positioning pad 40;

[0071] Please combine Figure 2 and Figure 3 The lower adjustment assembly includes two lower limit blocks 41 fixedly mounted on the positioning pad 40, the two lower limit blocks 41 are slidably connected to a lower slider 32, and the two lower ceramic cutters 33 are fixedly connected to the rear side walls of the two lower sliders 32;

[0072] The front side wall of the lower sliding block 32 is threadedly connected with a lower adjusting screw 31 , and the front end of the lower adjusting screw 31 is rotatably mounted on a lower adjusting block 42 fixedly connected to the positioning pad 40 through a limiting structure.

[0073] In this embodiment, the front side of the lower slider 32 is the side of the lower slider 32 away from the lower ceramic cutter 33 , and the front end of the lower adjusting screw 31 is the end of the lower adjusting screw 31 away from the lower slider 32 .

[0074] Since the front end of the lower adjusting screw 31 is limited by the limiting structure, it can only rotate around its own center line, and the lower adjusting screw 31 is threadedly connected to the lower slider 32, and the lower slider 32 is also limited in movement direction by the lower limiting block 41, so when the lower adjusting screw 31 is turned, the lower slider 32 can only move along the Figure 2 The movement in the direction perpendicular to the paper surface is the length direction of the battery cell to be processed in this embodiment.

[0075] Please continue to refer to Figure 4 , Figure 4 It is a schematic structural diagram of a drive assembly of a tab cutting tool provided by an embodiment of the present invention;

[0076] Specifically, the upper cutter assembly also includes a drive assembly;

[0077] Please combine Figure 1 , Figure 3 and Figure 4 , the driving assembly includes a supporting structure 100 mounted on the positioning pad 40, and a driving member 10 is fixedly mounted on the supporting structure 100;

[0078] The upper cutter position adjustment structure 60 includes a driving plate 64 connected to the driving rod 11 of the driving member 10, and two upper limit blocks 63 are fixedly installed at the bottom of the driving plate 64, and each upper limit block 63 is slidably connected to an upper slider 62;

[0079] An upper adjustment block 601 is also fixedly provided on the driving plate 64; an upper adjustment screw 621 is threadedly connected to the upper slider 62, and the front end of the upper adjustment screw 621 is rotatably mounted and fixedly connected to the upper adjustment block 601 through a limiting structure; and is parallel to the center line of the lower adjustment screw 31 and the upper adjustment screw 621;

[0080] In this embodiment, the front end of the upper adjusting screw 621 is an end of the upper adjusting screw 621 away from the upper sliding block 62 .

[0081] Similar to the adjustment principle of the lower adjustment screw 31 mentioned above, in this embodiment, the upper slider 62 can be adjusted to move in the length direction of the battery cell to be processed by turning the knob on the upper adjustment screw 621, thereby adjusting the cutting position of the upper ceramic cutter 61.

[0082] More specifically, in this embodiment, the upper adjusting screw 621 and the lower adjusting screw 31 are both screw structures with a rod head 312; the upper adjusting block 601 and the lower adjusting block 42 are both concave structures with a groove 421;

[0083] The connection structure between the lower adjusting block 42 and the lower adjusting screw 31 is taken as an example; Figure 8 As shown, Figure 8 It is a schematic diagram of a connection structure between a lower adjustment block and a lower adjustment screw provided by an embodiment of the present invention;

[0084] The screw structure includes a threaded rod 311 at one end for threaded connection with the lower slider 32, a positioning nut 313 is fixedly arranged on the concave structure, and the other end of the threaded rod 311 passes through the positioning nut 313 and the groove 421 in sequence and is connected to the rod head 312;

[0085] The positioning nut 313 is threadedly connected to the threaded rod 311 ; the positioning nut 313 and the rod head 312 are respectively abutted against two opposite sides of the concave structure.

[0086] For more details, please refer to Fig. 9 , Fig. 9 for Fig. 9 is a schematic diagram of the top structure of a positioning pad 40 provided in an embodiment of the present invention;

[0087] Please combine Figure 3 and Fig. 9 , the support structure 100 includes an upper support plate 101 and a first vertical plate 102;

[0088] A first mounting groove 402 is provided at the top of the positioning pad 40, and the bottom end of the first vertical plate 102 is fixedly connected to the first mounting groove 402; the top of the upper support plate 101 is fixedly connected to the top end of the first vertical plate 102;

[0089] The driving member 10 is mounted on the top of the upper support plate 101. The bottom end of the driving rod 11 passes through one side of the bottom of the upper support plate 101 and is fixedly connected to a lifting block 65. The lifting block 65 is fixedly connected to the driving plate 64.

[0090] A sliding guide rail 1021 is fixedly installed on the first vertical plate 102 . A limit slider 641 is slidably connected to the sliding guide rail 1021 . The limit slider 641 is fixedly connected to the driving plate 64 .

[0091] More specifically, the top of the positioning pad 40 is further provided with a second mounting groove 403, and the supporting structure 100 further includes a second vertical plate 103, the bottom end of the second vertical plate 103 is fixedly connected in the second mounting groove 403;

[0092] Exemplarily, in this embodiment, the driving member 10 may be a cylinder; the back of the second vertical plate 103 is provided with an instrument such as a barometer for displaying the working status of the driving member 10 .

[0093] Please refer to Figure 5 and Figure 6 As shown, Figure 5 1 is a schematic structural diagram of a group of cutter position adjustment structures of a tab cutting tool provided by an embodiment of the present invention at a certain viewing angle. Figure 6 It is a partial structural schematic diagram of a lower cutter position adjustment structure provided by an embodiment of the present invention;

[0094] Specifically, the two lower sliders 32 are provided with an L-shaped lower positioning slot 321 on the opposite sides thereof, and the lower limit block 41 is an H-shaped engaging structure matching the shape of the lower positioning slot 321;

[0095] An “L”-shaped upper positioning slot 622 is respectively formed on the opposite sides of the two upper sliding blocks 62 , and the upper limit block 63 is an “h”-shaped engaging structure matching the shape of the upper positioning slot 622 .

[0096] By means of the "h"-shaped snap-fit ​​structure and the "L"-shaped positioning slot, the slider can be limited in the width direction of the battery cell to be processed ( Figure 2 lateral) and height directions ( Figure 2 The movement in the longitudinal direction of the battery cell makes the slider slide only in the length direction of the battery cell, thereby adjusting the cutting position or cutting gap of the ceramic cutter.

[0097] For details, please combine Figure 1 and Figure 2 , a cell positioning structure 20 is provided on the positioning pad 40 above the lower slider 32;

[0098] Fixed sliders 43 are respectively arranged on the top of the positioning pad 40 at opposite sides of the lower cutter position adjustment structure 30; avoidance slide grooves are respectively opened on the battery cell positioning structure 20 at positions corresponding to the fixed sliders 43, and the fixed sliders 43 are slidably connected to the avoidance slide grooves;

[0099] The cell positioning structure 20 is also symmetrically provided with a plurality of holes for adjusting the height position of the cell positioning structure 20 ( Figure 2 The height adjustment structure 44 (in the longitudinal direction) has a bottom end connected to the positioning pad 40.

[0100] Exemplarily, in this embodiment, the height adjustment structure 44 includes a cylindrical head screw and a round wire spring sleeved on the cylindrical head screw;

[0101] The bottom end of the cylindrical head screw is threadedly connected to the positioning pad 40 , and the two ends of the round wire spring are respectively abutted against the top of the positioning pad 40 and the bottom of the battery cell positioning structure 20 .

[0102] The fixed slider 43 is used to limit the battery core positioning structure 20 to only be able to Figure 2 When the battery cell positioning structure 20 moves to a predetermined height, the height position of the battery cell positioning structure 20 can be fixed by the height adjustment structure 44, so that the cutting tool can be suitable for processing batteries of different thicknesses.

[0103] Please continue to refer to Fig. 9 , Fig. 9 is a structural schematic diagram of a battery cell positioning structure 20 provided in an embodiment of the present invention;

[0104] For details, please combine Figure 1 , Figure 2 and Fig. 9 The cell positioning structure 20 includes a cell positioning plate 21, and two avoidance grooves are respectively opened on two width sides of the cell positioning plate 21; wherein the width side of the cell positioning plate 21 is the width of the cell positioning plate 21. Figure 2 The left and right sides of the battery cell positioning plate 21;

[0105] A pair of first cell positioning blocks 22 are slidably connected to the top of the cell positioning plate 21, and a plurality of protrusions 221 are protruding downward from the bottom of the first cell positioning block 22. Cell positioning grooves 211 are respectively formed at positions corresponding to the protrusions 221 on the cell positioning plate 21, and the protrusions 221 are detachably fixedly connected to the cell positioning grooves 211.

[0106] The cell positioning blocks 22 are in a stepped structure, and the step surfaces 220 of each cell positioning block 22 are respectively and detachably fixedly connected with second cell positioning blocks 23, and the two second cell positioning blocks 23 are respectively extended in a direction approaching each other to form retaining edges 231;

[0107] The two first battery cell positioning blocks 22 and the two second battery cell positioning blocks 23 are jointly arranged to form a positioning fixture for positioning the battery cell.

[0108] By means of the above-mentioned positioning fixture, the battery cell to be processed can be limited in its length and width directions, so that the cutting position of the pole ear of the battery cell to be processed can be fixedly placed on the lower ceramic cutter 33, thereby facilitating the precise positioning of the pole ear cutting position, and because the battery cell is limited, the pole ear will not deviate when cutting the pole ear, thereby ensuring the stability of the cutting operation.

[0109] More specifically, a plurality of cell width positioning holes are provided in the cell positioning groove 211 at intervals along the width direction of the cell; a first fixing member for detachably fixing and connecting with the cell width positioning hole is inserted longitudinally through the position corresponding to the protrusion 221 on the first cell positioning block 22;

[0110] A plurality of cell length positioning holes are provided on the step surface 220 at intervals along the length direction of the cell; a second fixing piece for detachably fixing and connecting with the cell length positioning hole is inserted longitudinally through the second cell positioning block 23;

[0111] When the first fixing member is not fixedly connected to the positioning hole in the width direction of the battery cell, the protrusion 221 can slide in the battery cell positioning groove 211 along the width direction of the battery cell; when the second fixing member is not fixedly connected to the positioning hole in the length direction of the battery cell, the second battery cell positioning block 23 can slide on the step surface 220 along the length direction of the battery cell.

[0112] The positioning fixture of this embodiment can be adaptively adjusted in tightness according to battery cells of different sizes, so that the positioning fixture can limit battery cells of various sizes. It has a simple structure and does not require the installation of additional tooling molds, thereby reducing production costs.

[0113] In summary, the tab cutting work provided in this embodiment can complete the cutting of batteries with positive and negative tabs requiring different cutting positions at one time, effectively solving the problem that the battery tabs of some electronic terminals need to be cut twice; and the two sets of separately arranged cutters can also be adjusted individually according to different cutting gap requirements to meet the cutting requirements of various gaps; and, through the positioning fixture that can freely adjust the tightness combined with the height adjustment structure 40, the positioning of battery cells of various sizes can be achieved without the need to install additional tooling molds, thereby improving the stability of the cutting operation and reducing the production cost compared to the practice of adding tooling molds in the prior art.

[0114] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A tab cutting tool, comprising an upper cutting knife assembly and a lower cutting knife assembly that cooperate with each other to cut the tab of a battery cell, characterized in that: The upper cutter assembly comprises two upper ceramic cutters (61) which are separately arranged, and the lower cutter assembly comprises two lower ceramic cutters (33) which respectively match with a corresponding upper ceramic cutter (61); The upper cutter assembly is connected to an upper cutter position adjustment structure (60), the upper cutter position adjustment structure (60) comprising two upper adjustment assemblies for adjusting the cutting position of the upper ceramic cutter (61), each of the two upper adjustment assemblies being connected to one of the upper ceramic cutters (61); The lower cutter assembly is connected to a lower cutter position adjustment structure (30), and the lower cutter position adjustment structure (30) comprises two lower adjustment assemblies for adjusting the cutting position of the lower ceramic cutter (33), and each of the two lower adjustment assemblies is connected to one of the lower ceramic cutters (33).

2. The tab cutting tool according to claim 1, characterized in that: Also includes a positioning pad (40); The lower adjustment assembly comprises two lower limit blocks (41) fixedly mounted on the positioning pad (40), the two lower limit blocks (41) are respectively slidably connected to a lower slider (32), and the two lower ceramic cutters (33) are respectively fixedly connected to the two lower sliders (32); A lower adjusting screw (31) is threadedly connected to one side of the lower sliding block (32) away from the lower ceramic cutter (33); and one end of the lower adjusting screw (31) away from the lower sliding block (32) is rotatably mounted on a lower adjusting block (42) fixedly connected to the positioning pad (40) via a limiting structure.

3. The tab cutting tool according to claim 2, characterized in that: The upper cutter assembly also includes a drive assembly; The driving assembly comprises a supporting structure (100) mounted on the positioning pad (40), and a driving member (10) is fixedly mounted on the supporting structure (100); The upper cutter position adjustment structure (60) comprises a driving plate (64) connected to the driving rod (11) of the driving member (10), two upper limit blocks (63) are fixedly mounted on the bottom of the driving plate (64), and each of the upper limit blocks (63) is slidably connected to one of the upper sliders (62); An upper adjustment block (601) is also fixedly arranged on the driving plate (64); an upper adjustment screw rod (621) is threadedly connected to the upper sliding block (62); an end of the upper adjustment screw rod (621) away from the upper sliding block (62) is rotatably mounted on the upper adjustment block (601) through a limiting structure and fixedly connected thereto; Wherein, the center lines of the lower adjusting screw (31) and the upper adjusting screw (621) are parallel.

4. The tab cutting tool according to claim 3, characterized in that: The upper adjusting screw (621) and the lower adjusting screw (31) are both screw structures having a rod head (312); the upper adjusting block (601) and the lower adjusting block (42) are both concave structures having a groove (421); The screw rod structure comprises a threaded rod (311) having one end for threaded connection with the upper slider (62) or the lower slider (32); a positioning nut (313) is also fixedly arranged on the concave structure; the other end of the threaded rod (311) passes through the positioning nut (313) and the groove (421) in sequence and is connected to the rod head (312); The positioning nut (313) is threadedly connected to the threaded rod (311); the positioning nut (313) and the rod head (312) are respectively abutted against opposite sides of the concave structure.

5. The tab cutting tool according to claim 3, characterized in that: The support structure (100) comprises an upper support plate (101) and a first vertical plate (102); The top of the positioning pad (40) is provided with a first mounting groove (402), and the bottom end of the first vertical plate (102) is fixedly connected to the first mounting groove (402); the top of the upper support plate (101) is fixedly connected to the top end of the first vertical plate (102); The driving member (10) is mounted on the top of the upper support plate (101), the bottom end of the driving rod (11) passes through one side of the bottom of the upper support plate (101) and is fixedly connected to a lifting block (65), and the lifting block (65) is fixedly connected to the driving plate (64); A sliding guide rail (1021) is fixedly mounted on the first vertical plate (102), a limit slider (641) is slidably connected to the sliding guide rail (1021), and the limit slider (641) is fixedly connected to the driving plate (64).

6. The tab cutting tool according to claim 3, characterized in that: An "L"-shaped lower positioning groove (321) is respectively provided on the opposite sides of the two lower sliding blocks (32), and the lower limit block (41) is an "H"-shaped clamping structure matching the shape of the lower positioning groove (321); An "L"-shaped upper positioning groove (622) is respectively provided on the opposite sides of the two upper sliding blocks (62), and the upper limit block (63) is an "h"-shaped clamping structure that matches the shape of the upper positioning groove (622).

7. The tab cutting tool according to claim 3, characterized in that: A cell positioning structure (20) is arranged on the positioning pad (40) above the lower slider (32); The top of the positioning pad (40) is provided with fixed sliders (43) on opposite sides of the lower cutter position adjustment structure (30); the battery cell positioning structure (20) is provided with avoidance slide grooves at positions corresponding to the fixed sliders (43), and the fixed sliders (43) are slidably connected to the avoidance slide grooves; The battery cell positioning structure (20) is also symmetrically provided with a height adjustment structure (44) for adjusting the height position of the battery cell positioning structure (20), and the bottom end of the height adjustment structure (44) is connected to the positioning pad (40).

8. The tab cutting tool according to claim 7, characterized in that: The height adjustment structure (44) comprises a cylindrical head screw and a round wire spring sleeved on the cylindrical head screw; The bottom end of the cylindrical head screw is threadedly connected to the positioning pad (40), and the two ends of the round wire spring are respectively abutted against the top of the positioning pad (40) and the bottom of the battery cell positioning structure (20).

9. The tab cutting tool according to claim 7, characterized in that: The battery cell positioning structure (20) comprises a battery cell positioning plate (21), and the two avoidance slide grooves are respectively arranged on two width sides of the battery cell positioning plate (21); A pair of first cell positioning blocks (22) are slidably connected to the top of the cell positioning plate (21); a plurality of protrusions (221) are protruding downwards from the bottom of the first cell positioning block (22); cell positioning grooves (211) are respectively provided at positions corresponding to the protrusions (221) on the cell positioning plate (21); and the protrusions (221) are detachably fixedly connected to the cell positioning grooves (211); The cell positioning blocks (22) are in a stepped structure, and a second cell positioning block (23) is detachably fixedly connected to the step surface (220) of each cell positioning block (22), and the two second cell positioning blocks (23) are respectively extended in a direction approaching each other to form a rib (231); The two first battery cell positioning blocks (22) and the two second battery cell positioning blocks (23) are jointly arranged to form a positioning fixture for positioning the battery cell.

10. The tab cutting tool according to claim 9, characterized in that: A plurality of cell width positioning holes are provided in the cell positioning groove (211) at intervals along the width direction of the cell; a first fixing piece is longitudinally inserted through the first cell positioning block (22) at a position corresponding to the protrusion (221) and is used for being detachably fixedly connected to the cell width positioning hole; The step surface (220) is provided with a plurality of cell length positioning holes spaced apart along the length direction of the cell; and the second cell positioning block (23) is provided with a second fixing piece inserted longitudinally therethrough for being detachably fixedly connected to the cell length positioning hole; When the first fixing member is not fixedly connected to the battery cell width positioning hole, the protrusion (221) can slide in the battery cell positioning groove (211) along the width direction of the battery cell; when the second fixing member is not fixedly connected to the battery cell length positioning hole, the second battery cell positioning block (23) can slide on the step surface (220) along the length direction of the battery cell.

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