Battery piece crimping tool

Abstract

The utility model discloses a battery piece crimping tool, and relates to the technical field of battery production, the battery piece crimping tool comprises a first support, a second support, a third support and a plurality of pressure head assemblies, the second support is slidably arranged on the first support, and the sliding direction of the second support is a first direction; the third support is slidably arranged on the second support, and the sliding direction of the third support is a second direction; the multiple pressure head assemblies are arranged on the third support side by side in the third direction, each pressure head assembly is provided with a crimping face, the normal direction of each crimping face is the second direction, at least one pressure head assembly can be arranged in a sliding mode in the third direction, and every two of the first direction, the second direction and the third direction intersect. According to the technical scheme, the universality and compatibility of the battery piece crimping tool can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery processing, in particular to a battery bar crimping tool. Background Art

[0002] At present, judging from the development of the market situation, the application of batteries is becoming more and more extensive. Batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as aerospace and other fields. With the continuous expansion of battery application fields, its market demand is also constantly expanding.

[0003] As the demand for battery capacity increases, in order to expand the battery capacity, multiple battery cells are usually connected in series or in parallel using battery bars to form a battery module. When preparing a battery module, the bar needs to be welded to the battery cell; in related technologies, in order to improve welding quality, a crimping tool is usually used to press and align the battery cell pole with the bar. However, for different types of battery cells, due to differences in the thickness, width, and pole position of the battery cells, when producing different battery devices, it is necessary to prepare multiple sets of crimping tools of different sizes, so that the crimping tools that match the different battery cells can be replaced, and the versatility of the crimping tool is poor. Utility Model Content

[0004] The main purpose of the utility model is to provide a battery bar crimping tool, aiming to improve the versatility and compatibility of the battery bar crimping tool.

[0005] In order to achieve the above-mentioned purpose, the battery tab crimping tool proposed in the utility model comprises:

[0006] First bracket;

[0007] a second bracket, the second bracket being slidably disposed on the first bracket, and a sliding direction of the second bracket being a first direction;

[0008] a third bracket, the third bracket being slidably disposed on the second bracket, and a sliding direction of the third bracket being a second direction; and

[0009] A plurality of press head assemblies are arranged side by side on the third bracket along a third direction, the press head assemblies are provided with a crimping surface, the normal direction of the crimping surface is the second direction, at least one of the press head assemblies can be slidably arranged along the third direction, and the first direction, the second direction and the third direction intersect each other.

[0010] In an embodiment of the present application, in a battery bar crimping tool, a first bracket is used as a base, and a second bracket that can slide along a first direction and a third bracket that can slide along a second direction are provided, wherein the second direction is the crimping direction of the pressing head assembly, and the pressing head assembly can slide along the second direction with the third bracket to press or move away from the battery bar; the pressing head assembly and the third bracket can slide along the first direction with the second bracket to adjust the position of the pressing head assembly in the first direction, and multiple pressing head assemblies can also slide along the third direction on the third bracket to adjust the position of the pressing head assembly in the third direction and the distance between two adjacent pressing head assemblies, thereby being suitable for the preparation of various battery devices with different battery cell sizes, different pole spacings, and different pole positions, thereby improving the versatility and compatibility of the battery bar crimping tool.

[0011] In some embodiments, the battery tab crimping tool further includes a lock-release structure, which is disposed on the press head assembly and is used to cooperate with the third bracket to lock the press head assembly on the third bracket.

[0012] By adopting the above method, after adjusting the position of the pressing head assembly along the third direction as required, the locking structure can be used to fix the pressing head assembly on the third bracket to prevent the pressing head assembly from sliding and shifting relative to the third bracket when crimping the battery bar and adjusting the position of the pressing head assembly in the first direction or the third direction, thereby ensuring that the pressing head assembly can be accurately fixed in the required position to accurately align the battery bar during the process of crimping the battery bar.

[0013] In some embodiments, the lock-release structure can be movably disposed on the pressing head assembly and has a locked state and an unlocked state. When the lock-release structure is in the locked state, it abuts against the third bracket to lock the pressing head assembly. When the lock-release structure is in the unlocked state, it is spaced apart from the third bracket.

[0014] By adopting the above method, the locking and releasing structure can maintain the connection state with the pressing head assembly, and the switching between the locked state and the unlocked state can be achieved only by moving the locking and releasing structure on the pressing head assembly. When the locking and releasing structure is in the locked state abutting against the third bracket, the friction force between the locking and releasing structure and the third bracket is utilized to lock the pressing head assembly. There is no need to disassemble and assemble the locking and releasing structure, thereby improving the convenience of use.

[0015] In some embodiments, the third bracket includes a bracket body and a slide rail provided on the bracket body, the bracket body is slidably connected to the second bracket, and the press head assembly is provided with a slider slidably matched with the slide rail;

[0016] The lock-release structure comprises:

[0017] a first abutting block and a second abutting block, wherein the first abutting block and the second abutting block are slidably arranged and are respectively located at two sides of the slide rail; and

[0018] A driving member, wherein the driving member is connected to the first abutting block and the second abutting block, and the driving member is configured to drive the first abutting block and the second abutting block to move toward or away from each other so as to clamp or release the slide rail.

[0019] This arrangement enables the lock-release structure to cooperate with the slide rail on the third bracket to achieve locking of the pressure head assembly; the first abutment block and the second abutment block are driven by the driving member to move toward each other to clamp the slide rail, and the locking strength is high and relatively stable; when the pressure head assembly needs to slide along the third direction, the first abutment block and the second abutment block are driven by the driving member to move away from each other to release the slide rail.

[0020] In one embodiment, the driving member is rotatably arranged and comprises a first thread segment and a second thread segment with opposite thread rotation directions, the first thread segment is threadedly connected to the first abutment block, and the second thread segment is threadedly connected to the second abutment block.

[0021] By adopting the above method, the rotating driving member can drive the first abutting block and the second abutting block to move toward each other to clamp the slide rail, or drive the first abutting block and the second abutting block to move away from each other to loosen the slide rail. The structure is simple and the operation is convenient.

[0022] In one embodiment, the lock-release structure further includes a shell fixed to the pressing head assembly, and the first abutting block, the second abutting block and the driving member are all disposed on the shell.

[0023] In this arrangement, the first abutment block, the second abutment block and the driving member are installed through the outer shell, so that the lock-release structure is connected into an integral structure, which is convenient for the overall disassembly and assembly of the lock-release structure.

[0024] In one embodiment, the battery tab crimping tool includes a driving mechanism, which is disposed on the second bracket and connected to the third bracket, and the driving mechanism is configured to drive the third bracket to slide along the second direction.

[0025] By adopting the above method, the third bracket can be driven to slide through the driving mechanism to drive the pressing head assembly to press the battery bar, thereby realizing automatic control and facilitating controlling the pressing force of the pressing head assembly when crimping the battery bar to ensure the crimping effect.

[0026] In one embodiment, the battery tab crimping tool also includes a first transmission mechanism, which includes a first screw rod arranged on the first bracket, and a first screw rod nut connected to the second bracket, the first screw rod is a trapezoidal screw rod, and the first screw rod nut is threadedly connected to the first screw rod.

[0027] In this arrangement, the first transmission mechanism has a self-locking capability. After the second bracket is slidably adjusted to a position relative to the first bracket, the first transmission mechanism can self-lock to prevent the second bracket from sliding relative to the first bracket and deviating from the position after being adjusted to a position.

[0028] In some embodiments, the press head assembly includes:

[0029] A connecting frame, one end of which is slidably connected to the third bracket;

[0030] A pressing head, the pressing head is arranged at one end of the connecting frame away from the third bracket and can move relative to the connecting frame along the second direction, and the pressing head is provided with the pressing surface;

[0031] An elastic member, wherein the elastic member is located between the pressing head and the connecting frame along the second direction and is located on a side facing away from the crimping surface.

[0032] By adopting the above method, when crimping the battery tab, the pressing head assembly descends along with the third bracket until the pressing head abuts against the battery tab and then continues to descend. During the downward pressing process of the pressing head assembly, the pressing head moves relative to the connecting frame and squeezes the elastic member. This can play a buffering role and can also adjust the pressure between the pressing head and the battery tab by controlling the relative movement distance between the pressing head and the connecting frame and the compression distance of the elastic member to avoid excessive pressure on the battery tab.

[0033] In one embodiment, the end of the connecting frame away from the third bracket is provided with two spaced apart limiting structures, a mounting slot penetrating along the second direction is formed between the two limiting structures, and the limiting structure is provided with a plug-in slot opening toward the mounting slot;

[0034] The pressure head comprises a main body and connecting parts located at both sides of the main body. The main body is located in the installation groove and is provided with the crimping surface. The connecting part and the elastic member are arranged in the plug-in groove.

[0035] In this arrangement, the main body of the pressure head is arranged in the installation groove, the two connecting parts of the pressure head are respectively inserted in the two plug-in grooves of the connecting frame, and the elastic part is also accommodated in the plug-in groove, which is beneficial to improve the connection stability between the pressure head and the connecting frame, reduce the risk of the pressure head and the elastic part falling off, and also avoid damage to the elastic part, thereby improving the overall structural stability.

[0036] In one embodiment, the limiting structure includes a first block and a second block overlapping each other along the second direction, and the first block and the second block are enclosed to form the insertion groove.

[0037] This arrangement can facilitate the disassembly and assembly of the pressure head and the elastic member by separating the first block from the second block, thereby improving the convenience of disassembly and assembly.

[0038] In one embodiment, the pressing head assembly further includes a sleeve disposed on the connecting frame, the pressing head is provided with a mounting hole, the sleeve is inserted into the mounting hole, and the elastic member is located in the sleeve and the mounting hole.

[0039] This arrangement can guide and limit the pressure head through the cooperation of the sleeve and the mounting hole, thereby preventing the pressure head from deflecting during the movement relative to the connecting frame; and arranging the elastic member in the sleeve and the mounting hole can also protect and limit the elastic member.

[0040] In one embodiment, the pressing head assembly further includes a guide column extending along the second direction, wherein the guide column is connected to the connecting frame and passes through the pressing head.

[0041] With this arrangement, when the pressing head moves along the second direction relative to the connecting frame, the guide column can guide and limit the pressing head to prevent the pressing head from deflecting during the movement relative to the connecting frame. The arrangement of the guide column can also improve the connection strength between the pressing head and the connecting frame and reduce the risk of the pressing head detaching from the connecting frame.

[0042] In one embodiment, the pressing head assembly further includes a detector, and the detector is configured to detect the degree of deformation of the elastic member, or to detect the moving distance of the pressing head relative to the connecting frame.

[0043] With this arrangement, when crimping the battery tab, the pressing head moves relative to the connecting frame and squeezes the elastic member; the detector can detect the compression distance or elastic pressure of the elastic member, or detect the movement distance of the pressing head relative to the connecting frame, so as to determine the pressure applied by the pressing head assembly to the battery tab, so as to stop pressing the pressing head assembly when the required pressure is reached, so as to avoid the pressing head assembly applying greater pressure to the battery tab.

[0044] In one embodiment, the pressure head is provided with an avoidance hole penetrating along the second direction.

[0045] With this arrangement, when the pressure head presses the battery bar, the avoidance hole is set corresponding to the welding position of the battery bar and the battery pole, and welding is performed in the avoidance hole area. At this time, the pressure head can be pressed around the welding position to improve the stability of pressing the battery bar.

[0046] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] 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 the structures shown in these drawings without paying creative work.

[0048] Figure 1 This is a schematic structural diagram of an embodiment of a battery device in an embodiment of the present application;

[0049] Figure 2 A structural diagram of an embodiment of a battery tab crimping tool provided by the utility model;

[0050] Figure 3 for Figure 2 The structural diagram of the battery tab crimping tool from another angle;

[0051] Figure 4 for Figure 3 A partial enlarged view of the medium pressure head assembly;

[0052] Figure 5 for Figure 3 A cross-sectional view of the middle pressure head assembly at the location of the elastic member;

[0053] Figure 6 A cross-sectional view of the matching position of the lock-release structure and the third bracket in an embodiment of the battery tab crimping tool provided by the utility model.

[0054] Description of Figure Numbers:

[0055] 100, battery bar crimping tool; 1, first bracket; 2, second bracket; 3, third bracket; 31, frame; 32, slide rail; 4, press head assembly; 41, connecting frame; 411, main structure; 4111, extension section; 412, limit structure; 4121, first block; 4122, second block; 4123, plug slot; 413, installation slot;

[0056] 42, pressure head; 421, main body; 4211, crimping surface; 4212, avoidance hole; 4213, mounting hole; 422, connecting part; 43, elastic member; 44, detector; 45, guide column; 46, sleeve; 47, slider;

[0057] 5. Lock-release structure; 51. First abutment block; 52. Second abutment block; 53. Driving member; 531. First thread segment; 532. Second thread segment; 533. Handle; 54. Housing;

[0058] 6. First transmission mechanism; 61. First screw rod; 62. First screw rod nut; 63. Rotating wheel; 7. Driving mechanism; 71. Driving motor; 72. Second transmission mechanism; 721. Second screw rod;

[0059] 200, battery device; 201, battery cell; 2011, battery pole; 202, battery tab; X, first direction; Y, second direction; Z, third direction.

[0060] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0061] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0062] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0063] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0064] At present, judging from the development of the market situation, the application of batteries is becoming more and more extensive. Batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as aerospace and other fields. With the continuous expansion of battery application fields, its market demand is also constantly expanding.

[0065] As the demand for battery capacity increases, in order to expand the capacity of the battery, multiple battery cells are usually connected in series or in parallel using battery tabs to form a battery module. When preparing the battery device, the tabs are welded together with the battery cells by welding equipment. Laser welding of the poles and tabs of the battery cells is a key process in the formation of battery modules. A battery module is composed of a plurality of battery cells arranged and combined. There will be certain errors in the assembly of battery cells and battery cells, and battery cells and tabs. Therefore, the positive and negative poles of each battery cell in the battery module must be tightly fitted and aligned with the tabs to achieve good welding between the battery module and the tabs.

[0066] In the related art, in order to improve the welding quality, a crimping tool is usually used to press and align the pole and the tab of the battery cell. However, for different models of battery cells, due to differences in structural design such as the thickness, width and pole position of the battery cells, when producing different battery devices, it is necessary to prepare multiple sets of crimping tools of different sizes. The crimping tool must be replaced according to the different battery cells, and the versatility of the crimping tool is poor.

[0067] Based on the above considerations, the utility model proposes a battery bar crimping tool 100, including a first bracket 1, a second bracket 2, a third bracket 3 and a plurality of press head assemblies 4, the second bracket 2 is slidably disposed on the first bracket 1, and the sliding direction of the second bracket 2 is the first direction X; the third bracket 3 is slidably disposed on the second bracket 2, and the sliding direction of the third bracket 3 is the second direction Y; a plurality of press head assemblies 4 are arranged side by side on the third bracket 3 along the third direction Z, the press head assembly 4 is provided with a crimping surface 4211, and the normal direction of the crimping surface 4211 is the second direction Y, at least one press head assembly 4 can be slidably disposed along the third direction Z, and the first direction X, the second direction Y and the third direction Z intersect each other.

[0068] By adopting the above-mentioned battery bar crimping tool 100, the press head assembly 4 can slide along the second direction Y with the third bracket 3 to press or move away from the battery bar 202; the press head assembly 4 and the third bracket 3 can slide along the first direction X with the second bracket 2 to adjust the position of the press head assembly 4 in the first direction X, and multiple press head assemblies 4 can also slide along the third direction Z on the third bracket 3 to adjust the position of the press head assembly 4 in the third direction Z and the distance between two adjacent press head assemblies 4, so that it is suitable for the preparation of various battery devices 200 with different sizes of battery cells 201, different pole spacings and different pole positions, thereby improving the versatility and compatibility of the battery bar crimping tool 100.

[0069] For the convenience of description, the following embodiment describes a connection structure between a battery cell 201 and a battery tab 202 in a battery device 200 .

[0070] like Figure 1 As shown, a plurality of battery cells 201 are arranged in the battery device 200. The plurality of battery cells 201 can be connected in series, in parallel or in mixed connection. The plurality of battery cells 201 can be directly connected in series, in parallel or in mixed connection through the battery bar 202 to form a battery module. Mixed connection means that the plurality of battery cells 201 are connected in both series and in parallel.

[0071] Each battery cell 201 has two electrode poles, including a positive pole and a negative pole. The first direction X is the arrangement direction of the two battery poles 2011 in the battery cell 201, the third direction Z is the arrangement direction of the multiple battery cells 201 in the figure, and the second direction Y is the crimping direction of the battery tab 202 and the battery pole 2011; in some embodiments, the battery device 200 can also be provided with multiple rows of battery cells 201 arranged along the first direction X. The battery pole 2011 of the battery cell 201 is connected to the battery bar 202. Among the three battery cells 201 adjacent to each other along the third direction Z, the positive pole of the battery cell 201 located in the middle is connected to the negative pole of another battery cell 201 on one side through the battery bar 202, and the negative pole of the battery cell 201 located in the middle is connected to the positive pole of another battery cell 201 on the other side through the battery bar 202, so that multiple battery cells 201 are connected in series in sequence; among the two battery cells 201 located at the head and tail ends along the third direction Z, the battery bar 202 connected to the negative pole of one battery cell 201 is used as the input pole, and the positive pole of the other battery cell 201 is used as the output pole. Among them, each battery cell 201 can be a secondary battery or a primary battery; it can also be a lithium-sulfur battery, a sodium-ion battery or a magnesium-ion battery, but is not limited thereto.

[0072] Please refer to Figure 2 and Figure 3 , Figure 2 and Figure 3 This is a structural diagram of a battery tab crimping tool 100 according to some embodiments of the present application.

[0073] According to some embodiments of the present application, a battery bar crimping tool 100 includes a first bracket 1, a second bracket 2, a third bracket 3 and a plurality of press head assemblies 4, the second bracket 2 is slidably disposed on the first bracket 1, and the sliding direction of the second bracket 2 is the first direction X; the third bracket 3 is slidably disposed on the second bracket 2, and the sliding direction of the third bracket 3 is the second direction Y; a plurality of press head assemblies 4 are arranged side by side on the third bracket 3 along a third direction Z, the press head assembly 4 is provided with a crimping surface 4211, and the normal direction of the crimping surface 4211 is the second direction Y, at least one press head assembly 4 can be slidably disposed along the third direction Z, and the first direction X, the second direction Y and the third direction Z intersect each other.

[0074] In the embodiment of the present application, the first bracket 1 is used as the base of the battery bar crimping tool 100. In specific applications, the first bracket 1 is carried on the operating platform to keep the battery bar crimping tool 100 stable; the second bracket 2 is slidably arranged on the first bracket 1, and the first bracket 1 and the second bracket 2 can be slidably connected by a guide rail slider structure, a linear bearing structure, and the like. Optionally, the operator can manually push the second bracket 2 to make the second bracket 2 slide relative to the first bracket 1, or a driving structure for driving the second bracket 2 to slide can be set on the first bracket 1, and the driving structure can be set as a manual driving structure. For example, the following embodiment adopts a combination structure of a rotating wheel 63 and a screw transmission structure, and the operator manually rotates the rotating wheel 63 to drive the second bracket 2 to slide through the screw transmission structure. Of course, the driving structure can also be set as an electric driving structure or a cylinder or a liquid cylinder pushing structure, etc., which is not limited here. By sliding the second bracket 2 relative to the first bracket 1, the positions of the third bracket 3 and the pressing head assembly 4 arranged on the second bracket 2 can be adjusted in the first direction X; so that the pressing head assembly 4 can be adjusted to a position corresponding to the battery pole 2011 in the first direction X, which is suitable for different battery cells 201 having different edge distances between the battery pole 2011 and the battery cell 201 in the first direction X.

[0075] The pressing head assembly 4 is arranged on the third bracket 3, and the normal direction of the pressing surface 4211 on the pressing head assembly 4 for contacting with the battery bar 202 is the second direction Y, and the third bracket 3 can be slidably arranged relative to the second bracket 2 along the second direction Y. That is, in specific applications, the pressing surface 4211 of the pressing head assembly 4 and the battery bar 202 are arranged relative to each other along the second direction Y, and the third bracket 3 can drive the pressing head assembly 4 to slide along the second direction Y so that the pressing head assembly 4 approaches and presses the battery bar 202 on the battery cell 201, and the third bracket 3 can also drive the pressing head assembly 4 away from the battery bar 202. Optionally, the third bracket 3 can be slidably connected by a guide rail slider structure, a linear bearing structure, or the like. Optionally, the third bracket 3 can be driven to slide by an operator, or the third bracket 3 can be automatically driven to slide by a driving mechanism 7 in the following embodiment, which is not limited here.

[0076] In the embodiment of the present application, two or more pressing head assemblies 4 are arranged on the third bracket 3, and the plurality of pressing head assemblies 4 are arranged along the third direction Z (ie Figure 1 The arrangement direction of two adjacent battery cells 201 in the middle), taking two adjacent pressing head assemblies 4 as an example, one of the pressing head assemblies 4 can be slidably arranged, and the other pressing head assembly 4 can be fixed on the third bracket 3; or both pressing head assemblies 4 can be slidably arranged; this arrangement method makes the position of at least one pressing head assembly 4 adjustable, and the distance between two adjacent pressing head assemblies 4 can also be adjusted to be suitable for battery cells 201 with different battery poles 2011 positions in the third direction Z.

[0077] That is, in the embodiment of the present application, in the battery bar crimping tool 100, the first bracket 1 is used as a base, and a second bracket 2 that can slide along the first direction X and a third bracket 3 that can slide along the second direction Y are provided, wherein the second direction Y is the crimping direction of the press head assembly 4, and the press head assembly 4 can slide along the second direction Y with the third bracket 3 to press or move away from the battery bar 202; the press head assembly 4 and the third bracket 3 can slide along the first direction X with the second bracket 2 to adjust the position of the press head assembly 4 in the first direction X, and multiple press head assemblies 4 can also slide along the third direction Z on the third bracket 3 to adjust the position of the press head assembly 4 in the third direction Z and the distance between two adjacent press head assemblies 4, so that it is suitable for the preparation of various battery devices 200 with different sizes of battery cells 201, different pole spacings and different pole positions, thereby improving the versatility and compatibility of the battery bar crimping tool 100.

[0078] For ease of operation, when assembling the battery cell 201 and the battery bar 202, the battery cell 201 and the battery bar 202 are usually stacked in the height direction, and the battery bar 202 is placed above the battery cell 201. At this time, the second direction Y is the vertical direction; of course, the battery cell 201 and the battery bar 202 can also be arranged in the horizontal direction for welding according to needs. For ease of description, in the embodiment of the present application, the second direction Y is the vertical direction, and the first direction X and the third direction Z are mutually perpendicular horizontal directions.

[0079] Combined with reference Figure 2 and Figure 6 In some embodiments, the battery tab crimping tool 100 further includes a lock-release structure 5 , which is disposed on the pressing head assembly 4 and is used to cooperate with the third bracket 3 to lock the pressing head assembly 4 on the third bracket 3 .

[0080] In this embodiment, a locking and releasing structure 5 is provided on the battery bar crimping tool 100. After adjusting the position of the pressing head assembly 4 along the third direction Z as required, the locking and releasing structure 5 can be used to fix the pressing head assembly 4 on the third bracket 3 to prevent the pressing head assembly 4 from sliding and shifting relative to the third bracket 3 when crimping the battery bar 202 and adjusting the position of the pressing head assembly 4 in the first direction X or the third direction Z, thereby ensuring that the pressing head assembly 4 can be accurately fixed at the desired position to accurately align the battery bar 202 during the process of crimping the battery bar 202.

[0081] Optionally, the lock-release structure 5 can be set as a latch, and a plurality of positioning holes arranged along the third direction Z are set on the third bracket 3. After the pressure head assembly 4 slides to a suitable position, a latch is inserted into the positioning hole to limit the pressure head assembly 4 from sliding further. The latch can be inserted into the pressure head assembly 4, or latches can be set on both sides of the pressure head assembly 4 along the third direction Z for position limiting. The lock-release structure 5 can also be set as a brake block structure, a clamping structure, etc. For example, the lock-release structure 5 is movably set on the pressure head assembly 4, and the lock-release structure 5 can be moved to abut against or clamp the third bracket 3 to limit the sliding of the pressure head assembly 4 by static friction.

[0082] Please refer to Figure 6 In some embodiments, the lock-release structure 5 can be movably disposed on the pressure head assembly 4 and has a locked state and an unlocked state. When the lock-release structure 5 is in the locked state, it abuts against the third bracket 3 to lock the pressure head assembly 4. When the lock-release structure 5 is in the unlocked state, it is spaced apart from the third bracket 3.

[0083] In this embodiment, the locking structure 5 can maintain a connection state with the pressing head assembly 4, and the switching between the locked state and the unlocked state can be achieved only by moving the locking structure 5 on the pressing head assembly 4. When the locking structure 5 is in a locked state abutting against the third bracket 3, the friction force between the locking structure 5 and the third bracket 3 is used to lock the pressing head assembly 4, and there is no need to disassemble the locking structure 5, thereby improving the convenience of use.

[0084] Optionally, the locking and releasing structure 5 can be configured as a brake block structure, the third bracket 3 is provided with a brake surface, the brake block can move closer to or away from the brake surface, and the pressure head assembly 4 is locked when the brake block abuts against the brake surface; the locking and releasing structure 5 can also be configured as a clamping structure, and a mating piece extending along the third direction Z is provided on the third bracket 3, such as a slide rail 32 for sliding connection with the pressure head assembly 4, and the locking and releasing structure 5 can clamp the mating piece to be interconnected with the third bracket 3, thereby locking the pressure head assembly 4.

[0085] Combined with reference Figure 2 and Figure 6 In some embodiments, the third bracket 3 includes a frame body 31 and a slide rail 32 provided on the frame body 31, the frame body 31 is slidably connected to the second bracket 2, and the pressure head assembly 4 is provided with a slider 47 that slides with the slide rail 32; the lock-release structure 5 includes a first abutment block 51, a second abutment block 52 and a driving member 53, the first abutment block 51 and the second abutment block 52 are slidably arranged, and are respectively located on both sides of the slide rail 32; the driving member 53 is connected to the first abutment block 51 and the second abutment block 52, and the driving member 53 is configured to drive the first abutment block 51 and the second abutment block 52 to move toward or away from each other to clamp or release the slide rail 32.

[0086] In this embodiment, the frame body 31 of the third bracket 3 is used for sliding connection with the second bracket 2, and the frame body 31 can be set as a plate-like structure or a frame structure; a slide rail 32 extending along the third direction Z is set on the frame body 31; a slider 47 is set on the side of the pressure head assembly 4 facing the slide rail 32, and the slider 47 is slidingly connected to the slide rail 32; the cooperation of the slide rail 32 and the slider 47 can make the pressure head assembly 4 stably connected to the third frame body 31, and is beneficial to improving the stability of the pressure head assembly 4 during the sliding process relative to the third bracket 3.

[0087] The lock release structure 5 is configured to cooperate with the slide rail 32 on the third bracket 3 to achieve locking of the pressure head assembly 4; specifically, the lock release structure 5 includes a first abutment block 51 and a second abutment block 52, a portion of the first abutment block 51 is arranged on one side of the slide rail 32 along the width direction, and a portion of the second abutment block 52 is arranged on the other side of the slide rail 32 along the width direction, and the width direction of the slide rail 32 is perpendicular to the length direction of the guide rail (i.e. Figure 2The third direction Z shown in the figure). The first abutment block 51 and the second abutment block 52 are configured to move toward each other or away from each other under the drive of the driving member 53. When the first abutment block 51 and the second abutment block 52 move toward each other, they approach each other to clamp the slide rail 32, thereby remaining relatively fixed with the slide rail 32. At this time, the pressure head assembly 4 connected to the locking structure 5 also remains relatively fixed with the slide rail 32 to lock the pressure head assembly 4 to the third bracket 3; the first abutment block 51 and the second abutment block 52 are driven by the driving member 53 to move toward each other to clamp the slide rail 32, and the locking strength is high and relatively stable. When the driving member 53 drives the first abutment block 51 and the second abutment block 52 to move away from each other, the first abutment block 51 and the second abutment block 52 release the slide rail 32, and the locking structure 5 and the pressure head assembly 4 can slide relative to the slide rail 32 to adjust the position.

[0088] Optionally, the driving member 53 may be connected to the first abutting block 51 and the second abutting block 52 by providing a first thread segment 531 and a second thread segment 532 with opposite thread directions on the driving member 53, and the first thread segment 531 is threadedly connected to the first abutting block 51, and the second thread segment 532 is threadedly connected to the second abutting block 52, and the first abutting block 51 and the second abutting block 52 are driven to move toward or away from each other by rotating the driving member 53. Alternatively, the driving member 53 includes a gear and two racks, the two racks are respectively provided on the first abutting block 51 and the second abutting block 52, and the toothed structures of the two racks are provided facing each other, the gear is located between the two racks and meshes with the two racks, and the first abutting block 51 and the second abutting block 52 may be driven to move toward or away from each other by driving the gear to rotate. In addition, the driving member 53 can be configured to be slidable, and the first abutting block 51 and the second abutting block 52 are connected through a connecting rod transmission structure or other feasible transmission structures; the first abutting block 51 and the second abutting block 52 are driven to move toward or away from each other by sliding the driving member 53. Optionally, two driving members 53 can be provided to be connected to the first abutting block 51 and the second abutting block 52, respectively, to drive the first abutting block 51 and the second abutting block 52 to slide, respectively.

[0089] Optionally, the frame 31 is provided with a mounting surface, and the slide rail 32 is arranged on the mounting surface; wherein, the normal direction of the mounting surface can be a horizontal direction, in which case the width direction of the slide rail 32 is a vertical direction, and the first abutment block 51 and the second abutment block 52 are respectively located on the upper and lower sides of the slide rail 32; in addition, the normal direction of the mounting surface can be a vertical direction, in which case the width direction of the slide rail 32 is parallel to the vertical direction, and the first abutment block 51 and the second abutment block 52 are arranged on both sides of the slide rail 32 along the horizontal direction.

[0090] Please refer to Figure 6In one embodiment, the driving member 53 is rotatably arranged and includes a first thread segment 531 and a second thread segment 532 having opposite thread rotation directions. The first thread segment 531 is threadedly connected to the first abutment block 51 , and the second thread segment 532 is threadedly connected to the second abutment block 52 .

[0091] In this embodiment, a first thread segment 531 and a second thread segment 532 with opposite thread directions are provided on the driving member 53. The first thread segment 531 is threadedly connected to the first abutment block 51, and the second thread segment 532 is threadedly connected to the second abutment block 52. By rotating the driving member 53, the first abutment block 51 and the second abutment block 52 can be driven to move toward each other to clamp the slide rail 32, or the first abutment block 51 and the second abutment block 52 can be driven to move away from each other to loosen the slide rail 32. The structure is simple and the operation is convenient.

[0092] Please refer to Figure 6 In one embodiment, the driving member 53 also includes a handle 533, which is connected to one end of the first thread segment 531 away from the second thread segment 532; the setting of the handle 533 facilitates driving the driving member 53 to rotate, and the handle 533 extends the rotational torque, which is more labor-saving when rotating the driving member 53.

[0093] Please refer to Figure 6 In one embodiment, the lock-release structure 5 further includes a housing 54 fixed to the pressing head assembly 4 , and the first abutting block 51 , the second abutting block 52 and the driving member 53 are all disposed on the housing 54 .

[0094] In this embodiment, the lock-release structure 5 includes a housing 54 connected to the pressure head assembly 4, the housing 54 is provided with an inner cavity, at least part of the structure of the first abutting block 51 and at least part of the structure of the second abutting block 52 are arranged in the inner cavity, part of the structure of the driving member 53 is arranged in the inner cavity to connect with the first abutting block 51 and the second abutting block 52, and another part of the structure of the driving member 53 extends out of the housing 54 to facilitate the user to operate and control the movement of the driving member 53. In this arrangement, the lock-release structure 5 can be connected as an integral structure, which is convenient for the overall disassembly and assembly of the lock-release structure 5.

[0095] Please refer to Figure 2 In one embodiment, the battery tab crimping tool 100 also includes a first transmission mechanism 6, which includes a first screw rod 61 provided on the first bracket 1, and a first screw rod nut 62 connected to the second bracket 2, the first screw rod 61 is a trapezoidal screw rod, and the first screw rod nut 62 is threadedly connected to the first screw rod 61.

[0096] In this embodiment, the first screw rod 61 is fixed on the first bracket 1, and the first screw rod 61 is extended along the first direction X. The first screw rod nut 62 sleeved on the first screw rod 61 is connected to the second bracket 2. By driving the first screw rod 61 to rotate, the first screw rod nut 62 can drive the second bracket 2 to slide, which has a high transmission accuracy. Optionally, the first screw rod 61 can be driven and controlled by a motor, and a structure such as a rotating wheel 63 can also be set as a manual control end to manually drive the first screw rod 61 to rotate, which is not limited here.

[0097] Among them, the first screw rod 61 is set as a trapezoidal screw rod, so that the first transmission mechanism 6 has a self-locking ability. After the second bracket 2 is slidably adjusted to the first bracket 1, the first transmission mechanism 6 can self-lock to prevent the second bracket 2 from sliding relative to the first bracket 1 and deviating after being adjusted to the position.

[0098] Please refer to Figure 2 In one embodiment, the first transmission mechanism 6 further includes a rotating wheel 63, and the rotating wheel 63 is connected to one end of the first screw rod 61. In this arrangement, the first screw rod 61 can be driven to rotate by rotating the rotating wheel 63, which is convenient for operation.

[0099] Please refer to Figure 3 In one embodiment, the battery tab crimping tool 100 includes a driving mechanism 7, which is disposed on the second bracket 2 and connected to the third bracket 3, and the driving mechanism 7 is configured to drive the third bracket 3 to slide along the second direction Y.

[0100] In this embodiment, the driving mechanism 7 drives the third bracket 3 to slide to drive the pressing head assembly 4 to crimp the battery tab 202, thereby realizing automatic control and facilitating controlling the clamping force of the pressing head assembly 4 when crimping the battery tab 202 to ensure the crimping effect.

[0101] The driving mechanism 7 may use a driving motor 71 as a power source to realize electric drive control; the driving motor 71 may be connected to the third bracket 3 through at least one transmission structure such as screw drive, gear rack drive, connecting rod drive, belt drive, etc. When the driving motor 71 is running, it drives the third bracket 3 to slide to drive the pressure head assembly 4 to rise and fall along the second direction Y. In some embodiments, the driving mechanism 7 may also be set to be one of a cylinder drive and a hydraulic cylinder drive.

[0102] Please refer to Figure 3 In one embodiment, the driving mechanism 7 includes a second transmission mechanism 72 and a driving motor 71. The second transmission mechanism 72 includes a second screw rod 721 provided on the second bracket 2, and a second screw rod nut (not shown) connected to the third bracket 3. The second screw rod nut is threadedly connected to the second screw rod 721. The driving motor 71 is connected to the second screw rod 721 for driving the second screw rod 721 to rotate.

[0103] In this embodiment, the second screw rod 721 is fixed on the second bracket 2, and the second screw rod 721 is extended along the second direction Y. The second screw rod nut sleeved on the second screw rod 721 is connected to the third bracket 3. The driving motor 71 drives the second screw rod 721 to rotate, which can drive the second screw rod nut to drive the third bracket 3 to slide along the second direction Y. The control accuracy and stability of the driving mechanism 7 to drive the third bracket 3 to slide are relatively high, which is beneficial to improving the crimping effect of the pressing head assembly 4 on the battery bar 202.

[0104] Combined with reference Figure 4 and Figure 5 In some embodiments, the pressing head assembly 4 includes a connecting frame 41, one end of the connecting frame 41 is slidably connected to the third bracket 3, a pressing head 42 and an elastic member 43. The pressing head 42 is arranged at one end of the connecting frame 41 away from the third bracket 3, and can move relative to the connecting frame 41 along the second direction Y. The pressing head 42 is provided with a crimping surface 4211; the elastic member 43 is located between the pressing head 42 and the connecting frame 41 along the second direction Y, and is located on the side opposite to the crimping surface 4211.

[0105] In this embodiment, the connecting frame 41 of the pressing head assembly 4 is used for sliding connection with the third bracket 3. A slider 47 can be set at one end of the connecting frame 41 close to the third bracket 3, and the slider 47 is slidingly connected to the slide rail 32 provided on the third bracket 3; a guide rod extending along the third direction Z can also be provided on the third bracket 3, so that the guide rod is passed through the connecting frame 41.

[0106] The pressing head 42 of the pressing head assembly 4 is arranged at one end of the connecting frame 41 away from the third bracket 3. The pressing head 42 is used to crimp the battery bar 202, and is provided with a crimping surface 4211 for abutting against the battery bar 202. An elastic member 43 is provided on the side opposite to the crimping surface 4211. The elastic member 43 can produce elastic deformation in the second direction Y, and the two ends of the elastic member 43 along the second direction Y are respectively abutted against the pressing head 42 and the connecting frame 41; optionally, the elastic member 43 can be set to but not limited to a spring, an elastic airbag, a magnetic spring and other structures.

[0107] When specifically used for crimping the battery bar 202, the pressing head assembly 4 descends along with the third bracket 3 until the pressing head 42 abuts against the battery bar 202 and then continues to descend. At this time, the pressing head 42 moves relative to the connecting frame 41 and squeezes the elastic member 43; the elastic member 43 can play a buffering role, and can also adjust the pressure between the pressing head 42 and the battery bar 202 by controlling the relative movement distance between the pressing head 42 and the connecting frame 41 and the compression distance of the elastic member 43 to avoid excessive pressure on the battery bar 202.

[0108] Combined with reference Figure 4 and Figure 5In one embodiment, two spaced-apart limiting structures 412 are provided at one end of the connecting frame 41 away from the third bracket 3, and a mounting groove 413 penetrating along the second direction Y is formed between the two limiting structures 412. The limiting structure 412 is provided with a plug-in groove 4123 opening toward the mounting groove 413; the pressing head 42 includes a main body 421 and connecting parts 422 located on both sides of the main body 421. The main body 421 is located in the mounting groove 413 and is provided with a crimping surface 4211. The connecting part 422 and the elastic member 43 are arranged in the plug-in groove 4123.

[0109] In this embodiment, the connecting frame 41 includes a main structure 411 and two limiting structures 412. One end of the main structure 411 is slidably connected to the third bracket 3. One end of the main structure 411 away from the third bracket 3 is connected to the two limiting structures 412. A mounting groove 413 is formed between the two limiting structures 412, and the limiting structure 412 is provided with a plug-in groove 4123. The plug-in groove 4123 has an opening arranged toward the mounting groove 413. The main body 421 of the pressure head 42 is arranged in the mounting groove 413, and the two connecting parts 422 of the pressure head 42 are respectively inserted in the two plug-in grooves 4123 of the connecting frame 41, and the elastic member 43 is also accommodated in the plug-in groove 4123, which is conducive to improving the connection stability between the pressure head 42 and the connecting frame 41, reducing the risk of the pressure head 42 and the elastic member 43 falling off, and also preventing the elastic member 43 from being damaged, thereby improving the overall structural stability.

[0110] Optionally, the limiting structure 412 may be connected to the end of the main structure 411 , or two spaced apart extension sections 4111 may be provided at one end of the main structure 411 away from the third bracket 3 , and the two limiting structures 412 are connected to the two extension sections 4111 in a one-to-one correspondence.

[0111] Combined with reference Figure 4 and Figure 5 In one embodiment, the limiting structure 412 includes a first block 4121 and a second block 4122 that overlap each other along the second direction Y, and the first block 4121 and the second block 4122 form a plug-in slot 4123.

[0112] In this embodiment, the limiting structure 412 includes a first block 4121 and a second block 4122 connected to each other, and the first block 4121 and the second block 4122 are arranged along the second direction Y. A recessed area can be provided on the side of the first block 4121 facing the second block 4122, and when the first block 4121 and the second block 4122 overlap each other, they can enclose to form a plug-in slot 4123; or, a first recessed area is provided on the side of the first block 4121 facing the second block 4122, and a second recessed area is provided on the side of the second block 4122 facing the first block 4121, and the first recessed area and the second recessed area are correspondingly provided, so that when the first block 4121 and the second block 4122 overlap each other, the first recessed area and the second recessed area are combined into the plug-in slot 4123.

[0113] Optionally, the detachable connection between the first block 4121 and the second block 4122 may be, but is not limited to, at least one of bolt connection, clamping connection, magnetic connection, etc. This arrangement can facilitate the disassembly and assembly of the pressure head 42 and the elastic member 43 by separating the first block 4121 from the second block 4122, thereby improving the convenience of disassembly and assembly.

[0114] Combined with reference Figure 4 and Figure 5 In one embodiment, the pressing head assembly 4 further includes a sleeve 46 disposed on the connecting frame 41 , the pressing head 42 is provided with a mounting hole 4213 , the sleeve 46 is inserted into the mounting hole 4213 , and the elastic member 43 is located in the sleeve 46 and the mounting hole 4213 .

[0115] In this embodiment, the mounting hole 4213 is a blind hole with one end open, and the sleeve 46 is a hollow structure with at least one end open. The open end of the sleeve 46 is inserted into the mounting hole 4213, and the sleeve 46 and the mounting hole 4213 cooperate to guide and limit the pressure head 42, thereby preventing the pressure head 42 from deflecting during the movement relative to the connecting frame 41; and the elastic member 43 is arranged in the sleeve 46 and the mounting hole 4213, which can also protect and limit the elastic member 43.

[0116] Please refer to Figure 4 In one embodiment, the pressing head assembly 4 further includes a guide column 45 extending along the second direction Y, the guide column 45 is connected to the connecting frame 41 and penetrates the pressing head 42.

[0117] In this arrangement, when the pressure head 42 moves relative to the connecting frame 41 along the second direction Y, the guide column 45 can guide and limit the pressure head 42 to prevent the pressure head 42 from being offset, and the arrangement of the guide column 45 can also improve the connection strength between the pressure head 42 and the connecting frame 41, reducing the risk of the pressure head 42 being separated from the connecting frame 41. Optionally, the guide column 45 can be arranged as a structure such as a stud, a cylinder, or a prism.

[0118] Please refer to Figure 5 In one embodiment, the pressing head assembly 4 further includes a detector 44 , which is configured to detect the degree of deformation of the elastic member 43 , or to detect the moving distance of the pressing head 42 relative to the connecting frame 41 .

[0119] In this embodiment, a detector 44 is provided in the pressure head assembly 4, and the detector 44 is used to detect the deformation degree of the elastic member 43, or to detect the moving distance of the pressure head 42 relative to the connecting frame 41. Specifically, the deformation degree of the elastic member 43 can be reflected by the compression distance of the elastic member 43, and the detector 44 can be set as a distance sensor; the deformation degree of the elastic member 43 can also be reflected by the elastic force of the elastic member 43, and the detector 44 can be set as a pressure sensor; of course, the detector 44 can be set as a distance sensor for detecting the moving distance of the pressure head 42 relative to the connecting frame 41.

[0120] In some embodiments, the third bracket 3 is automatically driven by the driving mechanism 7 to drive the pressing head assembly 4 to move along the second direction Y, and the detector 44 is electrically connected to the controller; when crimping the battery tab 202, the pressing head 42 moves relative to the connecting frame 41 and squeezes the elastic member 43; the detector 44 can detect the compression distance or elastic pressure of the elastic member 43, or detect the movement distance of the pressing head 42 relative to the connecting frame 41, so as to determine the pressure applied by the pressing head assembly 4 to the battery tab 202, and stop pressing the pressing head assembly 4 when the required pressure is reached, so as to avoid the pressing head assembly 4 applying a large pressure to the battery tab 202.

[0121] Please refer to Figure 4 and Figure 5 In one embodiment, the pressure head 42 is provided with an avoidance hole 4212 penetrating along the second direction Y.

[0122] With this arrangement, when the pressing head 42 presses the battery bar 202 , the avoidance hole 4212 is arranged corresponding to the welding position between the battery bar 202 and the battery pole 2011 , and welding is performed in the avoidance hole 4212 area. At this time, the pressing head 42 can be pressed around the welding position to improve the stability of pressing the battery bar 202 .

[0123] The above are only exemplary embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A battery tab crimping tool, characterized in that: include: First bracket; a second bracket, the second bracket being slidably disposed on the first bracket, and a sliding direction of the second bracket being a first direction; a third bracket, the third bracket being slidably disposed on the second bracket, and a sliding direction of the third bracket being a second direction; as well as A plurality of press head assemblies are arranged side by side on the third bracket along a third direction, the press head assemblies are provided with a crimping surface, the normal direction of the crimping surface is the second direction, at least one of the press head assemblies can be slidably arranged along the third direction, and the first direction, the second direction and the third direction intersect each other.

2. The battery tab crimping tool as claimed in claim 1, characterized in that: The battery tab crimping tool further includes a lock-release structure, which is disposed on the press head assembly and is used to cooperate with the third bracket to lock the press head assembly on the third bracket.

3. The battery tab crimping tool as claimed in claim 2, characterized in that: The lock-release structure is movably disposed on the pressure head assembly and has a locked state and an unlocked state; When the lock-release structure is in the locked state, it abuts against the third bracket to lock the pressure head assembly. When the lock-release structure is in the unlocked state, it is spaced apart from the third bracket.

4. The battery tab crimping tool as claimed in claim 3, characterized in that: The third bracket comprises a bracket body and a slide rail arranged on the bracket body, the bracket body is slidably connected to the second bracket, and the pressure head assembly is provided with a slider slidably matched with the slide rail; The lock-release structure comprises: a first abutting block and a second abutting block, wherein the first abutting block and the second abutting block are slidably arranged and are respectively located at two sides of the slide rail; and A driving member, wherein the driving member is connected to the first abutting block and the second abutting block, and the driving member is configured to drive the first abutting block and the second abutting block to move toward or away from each other so as to clamp or release the slide rail.

5. The battery tab crimping tool as claimed in claim 4, characterized in that: The driving member is rotatably arranged and comprises a first thread segment and a second thread segment with opposite thread rotation directions, the first thread segment is threadedly connected to the first abutment block, and the second thread segment is threadedly connected to the second abutment block; And / or, the lock-release structure further includes a shell fixed to the pressing head assembly, and the first abutting block, the second abutting block and the driving member are all arranged on the shell.

6. The battery tab crimping tool as claimed in any one of claims 1 to 5, characterized in that: The battery tab crimping tool further includes a first transmission mechanism, the first transmission mechanism includes a first screw rod provided on the first bracket, and a first screw rod nut connected to the second bracket, the first screw rod is a trapezoidal screw rod, and the first screw rod nut is threadedly connected to the first screw rod; And / or, the battery tab crimping tool includes a driving mechanism, the driving mechanism is disposed on the second bracket and connected to the third bracket, and the driving mechanism is configured to drive the third bracket to slide along the second direction.

7. The battery tab crimping tool as claimed in any one of claims 1 to 5, characterized in that: The pressure head assembly comprises: A connecting frame, one end of which is slidably connected to the third bracket; A pressing head, the pressing head is arranged at one end of the connecting frame away from the third bracket and can move relative to the connecting frame along the second direction, and the pressing head is provided with the pressing surface; An elastic member, wherein the elastic member is located between the pressing head and the connecting frame along the second direction and is located on a side facing away from the crimping surface.

8. The battery tab crimping tool as claimed in claim 7, characterized in that: The end of the connecting frame away from the third bracket is provided with two spaced apart limiting structures, a mounting slot penetrating along the second direction is formed between the two limiting structures, and the limiting structure is provided with a plugging slot opening toward the mounting slot; The pressure head comprises a main body and connecting parts located at both sides of the main body. The main body is located in the installation groove and is provided with the crimping surface. The connecting part and the elastic member are arranged in the plug-in groove.

9. The battery tab crimping tool as claimed in claim 8, characterized in that: The limiting structure includes a first block and a second block overlapping each other along the second direction, and the first block and the second block are enclosed to form the plug-in slot.

10. The battery tab crimping tool as claimed in claim 7, characterized in that: The pressure head assembly further includes a detector, which is configured to detect the degree of deformation of the elastic member, or to detect the moving distance of the pressure head relative to the connecting frame; And / or, the pressure head assembly further comprises a sleeve arranged on the connecting frame, the pressure head is provided with a mounting hole, the sleeve is inserted into the mounting hole, and the elastic member is located in the sleeve and the mounting hole; And / or, the pressure head assembly further comprises a guide post extending along the second direction, the guide post being connected to the connecting frame and passing through the pressure head; And / or, the pressure head is provided with an avoidance hole penetrating along the second direction.

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