Battery welding auxiliary tooling

Abstract

This application relates to the field of battery manufacturing equipment technology, and provides a battery welding auxiliary tooling. The battery welding auxiliary tooling includes a worktable and a pressing mechanism; the pressing mechanism includes a first track assembly extending along a first direction, a second track assembly extending along a second direction, a handheld rod extending along a third direction, and a presser foot for pressing the electrode tabs; the first track assembly is mounted on the worktable, the second track assembly is slidably connected to the first track assembly, the handheld rod is slidably connected to the second track assembly, and the presser foot is movably disposed on the handheld rod; the second track assembly can slide along the first track assembly, the handheld rod can slide at least along the second track assembly, and the presser foot can slide along the handheld rod; the first direction and the third direction are on the plane of the worktable and intersect, and the second direction is perpendicular to the worktable. Through a multi-level guiding structure, the movement path of the presser foot is effectively constrained, avoiding uneven pressing pressure and offset of the pressing position, thus reducing the probability of welding defects.

Description

Technical Field

[0001] This application relates to the field of battery manufacturing equipment technology, and in particular to a battery welding auxiliary tooling. Background Technology

[0002] In laser welding, localized areas of the workpiece to be welded (such as battery tabs) must be stably pressed together to eliminate welding gaps and ensure consistent heat conduction, thereby guaranteeing weld quality and precision. Traditional methods typically rely on operators holding a pressure tool to apply pressure to the workpiece before welding.

[0003] However, in large-scale battery production, manually pressing the tabs repeatedly with a hand-held press is physically demanding and can easily lead to operator fatigue, causing fluctuations in pressing pressure or a decrease in positioning accuracy. The consistency and stability of manual movements are difficult to guarantee, and deviations in pressing position, uneven pressure, or differences in workpieces can easily result in poor adhesion of the welding area, failure of gap control, and consequently, defects such as incomplete welds, burn-through, and weld misalignment. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, or at least partially solve the above-mentioned technical problems, this application provides a battery welding auxiliary tooling.

[0005] This application provides a battery welding auxiliary tooling, including a worktable and a pressing mechanism; The pressing mechanism includes a first track assembly extending in a first direction, a second track assembly extending in a second direction, a hand handle extending in a third direction, and a presser foot for pressing the tab. The first track assembly is mounted on the workbench, the second track assembly is slidably connected to the first track assembly, the hand handle is slidably connected to the second track assembly, and the pressure foot is movably mounted on the hand handle. The second track assembly can slide along the first track assembly, the hand handle can slide at least along the second track assembly, and the pressure foot can slide along the hand handle; The first direction and the third direction are on the plane where the workbench is located and intersect, and the second direction is perpendicular to the workbench.

[0006] Optionally, the second track assembly includes a sliding column and a second slider, the second slider having an assembly hole, and the sliding column being slidably connected within the assembly hole; The sliding column is slidably connected to the first track assembly, and the hand handle is fixedly connected to the second slider.

[0007] Optionally, the second track assembly further includes a spring and a limiting block, the limiting block being connected to the sliding post and disposed on the side of the second slider near the first track assembly; The spring is sleeved on the sliding post and abuts against the limiting block and the second slider.

[0008] Optionally, the bottom end of the sliding column is slidably connected to the first track assembly, and the top end is provided with a limiting structure, which limits the sliding stroke of the second slider on the sliding column; And / or, the sliding column has a cylindrical structure, and the second slider can slide along the sliding column and rotate around the sliding column.

[0009] Optionally, the presser foot includes a main body and a fastener; The main body is movably connected to the hand handle, and the fastener is provided on the main body and can switch between a tight state and a loose state; When the fastener is in the fastened state, it engages with the handle to limit the movement of the main body relative to the handle. The fastener is disengaged from the handle in the relaxed state, allowing the main body to move relative to the handle.

[0010] Optionally, the fastener includes a threaded rod, and the main body has a threaded hole, with the threaded rod threaded into the threaded hole; The threaded rod rotates to move axially within the threaded hole, causing the threaded rod to abut against the handle to bring the fastener into the tightened state, or to separate from the handle to bring the fastener into the loosened state.

[0011] Optionally, the main body is provided with a mounting hole, and the hand handle is cylindrical and passes through the mounting hole, so that the main body can slide along the hand handle and can rotate relative to the hand handle; And / or, the main body includes a mounting block and a pressing member, the mounting block being movably connected to the hand handle, and the fastener being disposed on the mounting block; The pressing component includes a connecting part and an abutting part. One end of the connecting part is connected to the mounting block, and the other end is fixedly connected to the abutting part. The abutting part is inclined relative to the connecting part, and a welding hole for welding equipment to pass through is formed on the abutting part.

[0012] Optionally, the end of the handheld lever away from the second track assembly is provided with an anti-slip sleeve.

[0013] Optionally, the first track assembly includes a slide rail and a first slider, the slide rail extends along the first direction and is fixed to the worktable, the first slider is slidably connected to the slide rail, and the second track assembly is fixedly connected to the first slider.

[0014] Optionally, a damping structure is provided between the slide rail and the first slider, the damping structure providing damping for the sliding of the first slider along the slide rail; And / or, the first slider is provided with a locking structure, which can switch between a locked state and a released state. In the locked state, the locking structure cooperates with the slide rail to limit the sliding of the first slider relative to the slide rail. The locking structure separates from the slide rail when the release state is reached.

[0015] The technical solution provided in this application has the following advantages compared with the prior art: The battery welding auxiliary fixture provided in this application allows the operator to push the hand-held lever and the pressure foot, which in turn drives the pressure foot to move flexibly in two intersecting directions parallel to the worktable surface, enabling it to be quickly and accurately positioned directly above the tab to be welded. Subsequently, the operator lowers the hand-held lever, causing the pressure foot to press the tab firmly, completing the pressing action. For batteries of the same size from the same batch, only the position of the pressure foot needs to be adjusted and locked before the first welding. Afterwards, each time the battery is placed at the designated position on the worktable, no repeated adjustments are needed; the operator can simply press down the hand-held lever to complete the pressing operation, significantly simplifying the process. Compared to the traditional manual hand-held pressing method, the multi-level guiding structure formed by the coordinated cooperation of the first track assembly, the second track assembly, and the hand-held lever effectively constrains the movement path of the pressing foot. This not only ensures accurate positioning in the horizontal plane but also guarantees directional stability and uniform force during the pressing process. It avoids problems such as uneven pressing force and pressing position deviation caused by human fatigue or fluctuations in movement, reducing the probability of welding defects such as incomplete welding, weld penetration, and weld misalignment in battery welding operations. This improves battery welding quality and enhances production efficiency. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the pressing mechanism described in the embodiments of this application; Figure 2 This is a schematic diagram of the structure of the first track assembly in an embodiment of this application; Figure 3 This is a schematic diagram of the structure of the second track assembly in an embodiment of this application; Figure 4 This is a schematic diagram of the assembly structure of the hand handle and the presser foot as described in the embodiments of this application.

[0019] Among them, 1. First track assembly; 11. Slide rail; 12. First slider; 2. Second track assembly; 21. Sliding column; 22. Second slider; 23. Limiting block; 24. Spring; 25. Limiting structure; 3. Hand handle; 31. Anti-slip sleeve; 4. Pressing foot; 41. Main body; 411. Mounting block; 42. Pressing part; 421. Connecting part; 422. Abutting part. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this application, the solution of this application will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of this application, but this application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of this application, and not all embodiments.

[0022] During battery manufacturing, lasers are typically used to weld the battery tabs to an integrated busbar or other conductive structure. During tab welding, the tabs need to be stably pressed against the area to be welded to eliminate gaps and ensure consistent heat conduction, thereby guaranteeing weld quality and precision. The traditional method involves workers placing the battery on a workbench and using a handheld pressure tool to press the tabs into contact with the structure before welding.

[0023] However, battery production involves large batches, and the labor intensity of manually pressing the tabs repeatedly with hand-held presses is high. Operators are prone to fatigue, and it is difficult to guarantee the consistency and stability of the manual pressing action. Fluctuations in pressing pressure and deviations in pressing position can cause the welding area to not fit tightly and the gap control to fail, which in turn induces defects such as incomplete welding, burn-through, and weld misalignment, affecting the yield and quality of battery production.

[0024] To solve the above problems, refer to Figures 1 to 4As shown, this application provides a battery welding auxiliary tooling, including a worktable and a pressing mechanism; the pressing mechanism includes a first track assembly 1 extending along a first direction, a second track assembly 2 extending along a second direction, a handheld rod 3 extending along a third direction, and a pressing foot 4 for pressing the tabs; the first track assembly 1 is mounted on the worktable, the second track assembly 2 is slidably connected to the first track assembly 1, the handheld rod 3 is slidably connected to the second track assembly 2, and the pressing foot 4 is movably disposed on the handheld rod 3; the second track assembly 2 can slide along the first track assembly 1, the handheld rod 3 can slide at least along the second track assembly 2, and the pressing foot 4 can slide along the handheld rod 3; the first direction and the third direction are on the plane of the worktable and intersect, and the second direction is perpendicular to the worktable.

[0025] The battery welding auxiliary fixture provided in this application allows the operator to push the hand lever 3 and the pressure foot 4, which in turn drives the pressure foot 4 to move flexibly in two intersecting directions parallel to the worktable surface, enabling it to be quickly and accurately positioned directly above the tab to be welded. Subsequently, the operator lowers the hand lever 3, which drives the pressure foot 4 to press the tab down stably, completing the pressing action. For batteries of the same size in the same batch, only the position of the pressure foot 4 needs to be adjusted and locked before the first welding. After each subsequent placement of the battery at the designated position on the worktable, no repeated adjustments are required. The operator can simply press down the hand lever 3 to complete the pressing operation, greatly simplifying the operation process. Compared with the traditional manual hand-held pressing method, the multi-level guiding structure formed by the coordinated cooperation of the first track assembly 1, the second track assembly 2, and the hand-held lever 3 effectively constrains the movement path of the pressing foot 4. This not only ensures its accurate positioning in the horizontal plane but also guarantees directional stability and uniform force during the pressing process. It avoids problems such as uneven pressing force and pressing position deviation caused by human fatigue or fluctuations in movement, reducing the probability of welding defects such as incomplete welding, weld penetration, and weld misalignment in battery welding operations. This improves battery welding quality and enhances production efficiency.

[0026] Reference Figure 1 As shown, the first direction 'a' is set as the length of the workbench surface, the second direction 'b' is set as the height of the workbench surface, and the third direction 'c' is set as the width of the workbench surface. This orientation setting maximizes the utilization of the workbench's working space and adapts to the pressing requirements of battery tabs of different sizes.

[0027] The first track assembly 1 adopts a linear guide structure, and the end of the second track assembly 2 is connected to the first track assembly 1 so that the second track assembly 2 can slide relative to the worktable in a first direction through the first track assembly 1.

[0028] Reference Figure 1 and Figure 2As shown, in some embodiments, the first track assembly 1 includes a slide rail 11 and a first slider 12. The slide rail 11 extends along a first direction and is fixed to the worktable. The first slider 12 is slidably connected to the slide rail 11. The second track assembly 2 is fixedly connected to the first slider 12.

[0029] This configuration ensures the sliding positioning accuracy through the precise cooperation between the slide rail 11 and the first slider 12, and improves the adjustment accuracy and stability of the tooling in the first direction.

[0030] Specifically, the slide rail 11 adopts a high-precision linear guide. The first slider 12 may optionally have a sliding groove passing through it, and the slide rail 11 is movably inserted into the sliding groove so that the first slider 12 can slide along the slide rail 11. Alternatively, the top and bottom sides of the slide rail 11 may have grooves extending along a first direction, the first slider 12 may have a sliding groove, the slide rail 11 may pass through the sliding groove, and limiting protrusions may be provided on the groove walls facing the top and bottom sides of the slide rail 11. Two limiting protrusions are slidably connected within two grooves to restrict the movement of the first slider 12 relative to the slide rail 11 in a direction perpendicular to the first direction a, thereby reducing the wobbling of the first slider 12 when sliding relative to the slide rail 11.

[0031] Both ends of the slide rail 11 are fixedly connected to the worktable by brackets or bolts, so that the slide rail 11 and the worktable are spaced apart, which facilitates the sliding of the first slider 12 on the slide rail 11. The top side of the first slider 12 can be welded to the second track assembly 2. Alternatively, the second track assembly 2 can be welded to the side of the first slider 12 in the horizontal direction, so that when the first slider 12 slides on the slide rail 11, it can drive the second track assembly 2 to move in the first direction.

[0032] In some embodiments, a damping structure is provided between the slide rail 11 and the first slider 12, the damping structure providing damping for the sliding of the first slider 12 along the slide rail 11.

[0033] This design enhances the stability of the first slider 12 as it slides along the slide rail 11. Furthermore, once the first slider 12 reaches the desired position, the damping structure ensures it stops sliding promptly, improving the accuracy of its positioning. When adjusting the position of the pressure foot 4 on the hand lever 3 or pressing down on the hand lever 3, the damping structure prevents the first slider 12 from moving relative to the slide rail 11, ensuring its stability during electrode engagement.

[0034] Specifically, a rubber pad, plastic pad, or plastic mat can be provided between the first slider 12 and the slide rail 11 as a damping structure. For example, a rubber pad can be provided on the side of the first slider 12 facing the slide rail 11. The rubber pad rubs against the slide rail 11, and the friction between the rubber pad and the slide rail 11 provides damping for the sliding of the first slider 12. Alternatively, a rubber pad can be provided on the side of the slide rail 11 facing the first slider 12 as a damping structure.

[0035] The first slider 12 needs to continuously overcome the frictional force provided by the damping structure during sliding, thereby slowing down the sliding speed of the first slider 12 and ensuring that the first slider 12 can stop sliding in time when the force applied to the first slider 12 is stopped. After the first slider 12 reaches the desired position, when the operator adjusts the position of the hand lever 3, the frictional force provided by the damping structure can prevent the first slider 12 from moving relative to the slide rail 11.

[0036] In some embodiments, the first slider 12 is provided with a locking structure, which can switch between a locked state and a released state. When the locking structure is in the locked state, it cooperates with the slide rail 11 to limit the sliding of the first slider 12 relative to the slide rail 11. The locking mechanism is separated from the slide rail 11 when it is in the released state.

[0037] With this configuration, once the first slider 12 moves to the desired position, the locking structure enters the locking state, thus limiting the first slider 12. This prevents the first slider 12 from shifting due to the force applied by the operator to the hand lever 3, thereby improving the stability of the first slider 12 during welding operations. This, in turn, improves the overall positional stability of the pressing mechanism, ensuring that the pressure foot 4 can accurately press down on the tabs on the worktable each time.

[0038] The first slider 12 can be optionally connected with a bolt as a locking structure. The bolt rotates to move closer to and away from the slide rail 11. When the bolt abuts against the slide rail 11, it restricts the sliding of the first slider 12 relative to the slide rail 11. At this time, the locking structure is in a locked state, which realizes the positioning of the first slider 12 on the slide rail 11. When the bolt is separated from the slide rail 11, the locking structure is in an unlocked state, and the first slider 12 can slide on the slide rail 11.

[0039] Alternatively, a movable latch can be provided on the first slider 12 as a locking structure, which can engage with the edge of the slide rail 11. When the movable latch is disengaged from the slide rail 11, the locking structure is in an unloaded state, allowing the first slider 12 to slide on the slide rail 11. When the first slider 12 slides to the desired position on the slide rail 11, the movable latch engages with the slide rail 11, thereby restricting the relative movement between the first slider 12 and the slide rail 11, at which point the locking structure is in a locked state.

[0040] The second track assembly 2 is arranged along the second direction b. When the plane of the worktable is horizontal, the second track assembly 2 is arranged vertically, allowing the pressure foot 4 to move vertically and press the electrode lug on the worktable. The second track assembly 2 can optionally include a vertically arranged track and a vertical slider. The vertical slider is slidably connected to the track, and the track is fixedly connected to the first slider 12 of the first track assembly 1. The hand lever 3 is fixedly connected to the vertical slider.

[0041] In some embodiments, refer to Figure 1 and Figure 3 As shown, the second track assembly 2 includes a sliding column 21 and a second slider 22. The second slider 22 is provided with an assembly hole, and the sliding column 21 is slidably connected to the assembly hole. The sliding column 21 is slidably connected to the first track assembly 1, and the hand handle 3 is fixedly connected to the second slider 22.

[0042] With this configuration, the structure of the sliding connection between the second slider 22 and the sliding post 21 is simple and has low manufacturing cost. Furthermore, the sliding post 21 restricts the movement direction of the second slider 22, ensuring that the second slider 22 can only move along the second direction b.

[0043] Specifically, the sliding column 21 serves as a guide component of the second track assembly 2. Its cross-sectional shape can be rectangular or circular. The shape and size of the mounting hole are adapted to the sliding column 21. The sliding column 21 extends along a second direction b perpendicular to the worktable. The bottom end of the sliding column 21 is slidably connected to the first track assembly 1, allowing the sliding column 21 to slide on the first track assembly 1.

[0044] The second slider 22 has a rectangular block structure, and a through mounting hole is provided at the center of the second slider 22 along the second direction b. The inner diameter of the mounting hole is the same as the outer diameter of the sliding column 21, so that the sliding column 21 fits against the inner wall of the mounting hole. The sliding column 21 can slide in the mounting hole by overcoming the friction with the inner wall of the mounting hole. Alternatively, the sliding column 21 and the mounting hole can be fitted with a clearance fit, and a damping ring can be provided between the sliding column 21 and the inner wall of the mounting hole, so that the second slider 22 can maintain a stable position under the action of the damping ring when no force is applied.

[0045] The second slider 22 can optionally be connected to a bolt. The bolt rotates to move closer to and away from the sliding post 21. When the bolt abuts against the sliding post 21, it restricts the sliding and rotation of the second slider 22 relative to the sliding post 21 to achieve positioning. When the bolt is separated from the sliding post 21, the second slider 22 can slide on the sliding post 21.

[0046] In some embodiments, the second track assembly 2 further includes a spring 24 and a limiting block 23, the limiting block 23 being connected to the sliding post 21 and disposed on the side of the second slider 22 close to the first track assembly 1; Spring 24 is sleeved on sliding post 21 and abuts between limit block 23 and second slider 22.

[0047] This configuration, with the addition of spring 24 and limit block 23, enables the pressing mechanism to have elastic pressing and automatic reset functions. On the one hand, the elastic buffering effect of spring 24 can effectively absorb the hand tremors and force fluctuations of the operator when pressing, keeping the pressing force of the presser foot 4 against the electrode tabs stable, avoiding deformation of the electrode tabs due to excessive pressing force, or gaps due to insufficient pressing force, thereby further improving the consistency of pressing quality. On the other hand, the automatic reset function of the spring after welding eliminates the step of manual lifting and reset, reducing the labor intensity of the operator and improving work efficiency.

[0048] Specifically, the limiting block 23 is set on the sliding column 21 by welding or integral molding with the sliding column 21. The limiting block 23 can be selected to have a certain distance from the first track assembly 1, so that the second slider 22 is always spaced apart from the worktable, which facilitates the battery to enter the space between the handheld lever 3 and the worktable.

[0049] The spring is a compression spring with an inner diameter larger than that of the sliding post 21. The spring is sleeved on the sliding post 21. The spring is located between the second slider 22 and the limiting block 23. Optionally, both ends of the spring can be separated from the second slider 22 and the limiting block 23. When the second slider 22 is not under force, it presses down on the ends of the spring, causing both ends of the spring to abut against the second slider 22 and the limiting block 23. Alternatively, both ends of the spring can be connected to the second slider 22 and the limiting block 23 respectively.

[0050] When the hand lever 3 is pressed down, the pressure foot 4 presses against the electrode tab for welding. This reduces the distance between the second slider 22 and the limiting block 23, compressing the spring and accumulating elastic potential energy. When the hand lever 3 is stopped being pressed down, the spring releases the accumulated elastic potential energy and drives the second slider 22 to move away from the limiting block 23, allowing the hand lever 3 to reset and facilitating the entry of the next battery into the space between the hand lever 3 and the worktable.

[0051] In some embodiments, the sliding post 21 has a cylindrical structure, and the second slider 22 can slide along the sliding post 21 and rotate around the sliding post 21.

[0052] With this configuration, the second slider 22 can slide relative to the sliding column 21, and it also allows for rotational adjustment of the second slider 22 around the axis of the sliding column 21, further enhancing the adjustment freedom of the pressing mechanism. This single-sliding track assembly allows for 360° angle adjustment of the presser foot 4 in the horizontal plane, adapting to different battery tab arrangements and angles for welding, thus expanding the applicability of the tooling. Furthermore, the hand lever 3 can be switched between the two sides of the first track assembly 1, facilitating adjustment of the pressing mechanism's installation position on the worktable.

[0053] Specifically, the sliding column 21 is cylindrical in shape, and the mounting hole is a circular through hole. The sliding column 21 is fitted with the mounting hole with a clearance, so that the sliding column 21 can rotate within the mounting hole.

[0054] When it is necessary to adjust the angle of the pressure foot 4 relative to the first track assembly 1 in the horizontal direction to accommodate batteries of different sizes and with different tab positions, the operator rotates the hand lever 3, causing the hand lever 3 to drive the second slider 22 to rotate around the axis of the sliding column 21, thereby changing the orientation of the pressure foot 4. During the rotation, the sliding column 21 remains fixed, and only the second slider 22 rotates around it, thus achieving angle adjustment of the pressure foot 4 in the horizontal plane, ensuring that the pressure foot 4 maintains a good fit with the tab surface.

[0055] The sliding column 21 can be equipped with a positioning block. When the second slider 22 rotates to the set position, it abuts against the positioning block. Thus, during welding, the second slider 22 abuts against the positioning block and then slides up and down. After completing one welding operation, the operator rotates the hand lever 3 in the horizontal direction to move the pressure foot 4 away from the battery, making it easier to remove the battery from the worktable. After the next battery is placed on the worktable, the operator rotates the hand lever 3 to make the second slider 22 abut against the positioning block, and then continues the above operation to carry out the welding work.

[0056] Reference Figure 1 and Figure 3 As shown, in some embodiments, the bottom end of the sliding column 21 is slidably connected to the first track assembly 1, and the top end is provided with a limiting structure 25, which limits the sliding stroke of the second slider 22 on the sliding column 21.

[0057] With this configuration, the limiting structure 25 at the top of the sliding column 21 provides a reliable upward limit for the second slider 22, effectively limiting the sliding stroke of the second slider 22, preventing it from falling off the top of the sliding column 21, and improving the safety of the tooling.

[0058] Specifically, a fixing block can be installed at the bottom of the sliding column 21, and the fixing block is slidably connected to the first track assembly 1; when the first track assembly 1 includes the first slider 12, the fixing block is fixedly connected to the first slider 12.

[0059] The limiting structure 25 can be a disc or a block structure. The dimension of the limiting structure 25 in the cross-section perpendicular to the second direction is larger than the dimension of the sliding column 21 in the cross-section perpendicular to the second direction. When the second slider 22 slides to the top of the sliding column 21, the limiting structure 25 prevents the second slider 22 from continuing to slide, thus preventing the second slider 22 from dislodging from the top of the sliding column 21. The sliding stroke of the second slider 22 is between the limiting block 23 and the limiting structure 25.

[0060] The handheld lever 3 is a straight rod structure. One end of the handheld lever 3 is connected to the second track assembly 2, and the other end is used for the operator to hold. After the operator holds the handheld lever 3, applying a force to the handheld lever 3 in the vertical direction will drive the handheld lever 3 to move up and down, thereby enabling the pressure foot 4 on the handheld lever 3 to press the electrode tab.

[0061] In some embodiments, the end of the handheld lever 3 away from the second track assembly 2 is provided with an anti-slip sleeve 31.

[0062] This design, by providing an anti-slip sleeve 31 at the end of the handheld lever 3, allows the operator to grip the anti-slip sleeve 31 and drive the handheld lever 3 to move, thus improving the stability and comfort of the operator's grip.

[0063] Specifically, the anti-slip sleeve 31 is made of highly elastic and highly wear-resistant thermoplastic elastomer or rubber. The anti-slip sleeve 31 is fitted onto the end of the handle 3. It can be either bonded to the handle 3 or fitted with an interference fit. The anti-slip sleeve 31 may have a textured surface to increase friction when the user grips it.

[0064] The pressure foot 4 is a component that directly contacts the battery tab. The side of the pressure foot 4 facing the working surface has an abutment surface, which abuts against the tab to press it together. The pressure foot 4 is provided with a mounting hole that matches the handle 3. The handle 3 passes through the mounting hole so that the pressure foot 4 can slide along the handle 3.

[0065] Reference Figure 1 and Figure 4 As shown, in some embodiments, the pressure foot 4 includes a main body 41 and a fastener; The main body 41 is movably connected to the hand handle 3, and fasteners are provided on the main body 41 and can switch between a tight state and a loose state; When fastened, the fastener engages with the handle 3 to limit the movement of the main body 41 relative to the handle 3. When the fastener is in the loosened state, it is disengaged from the handle 3, allowing the main body 41 to move relative to the handle 3.

[0066] This design, through the movable connection between the main body 41 and the handle 3, and the adjustable tightness of the fasteners, enables flexible adjustment and reliable fixation of the position and angle of the presser foot 4. In the relaxed state, the presser foot 4 can be freely adjusted to precisely adapt to the pressing requirements of battery tabs of different sizes and positions, improving the versatility of the tooling. In the tightened state, the fasteners stabilize the main body 41 through static friction, preventing displacement of the presser foot due to vibration or external force during the pressing process, thus ensuring the accuracy of the pressing positioning.

[0067] Specifically, the main body 41 is a block structure and is slidably connected to the handle 3. Optionally, the main body 41 may have a through hole through which the handle 3 passes, or the handle 3 may have a guide rail, with the main body 41 slidably connected to the guide rail.

[0068] Fasteners are installed on the main body 41. When the fasteners are in the tightened state, the relative position of the main body 41 and the handle 3 remains fixed. At this time, the operator only needs to press down on the handle 3 to press the tabs of the main body 41 together. When the fasteners are in the loosened state, the main body 41 can slide on the handle 3, thereby adjusting the position of the main body 41 on the handle 3 to accommodate batteries of different sizes and with tabs in different positions.

[0069] In some embodiments, the fastener includes a threaded rod, and the main body 41 is provided with a threaded hole, and the threaded rod is threaded into the threaded hole; The threaded rod rotates to move axially within the threaded hole, causing it to abut against the hand lever 3 to tighten the fastener, or to separate from the hand lever 3 to loosen the fastener.

[0070] This design allows the threaded rod and threaded hole to mesh, utilizing the helical transmission of the thread to achieve axial movement of the threaded rod. This enables engagement and disengagement with the handheld lever 3, facilitating convenient switching between tight and loose fastener states. The threaded rod structure is simple to operate, requires no tools, and improves adjustment efficiency.

[0071] Specifically, the threaded rod can be a commonly used bolt, or it can be a cylindrical structural component with threads on its outer wall. A through hole is provided on the main body 41, and the inner wall of the through hole is threaded to form a threaded hole. One end of the threaded hole forms an opening on the surface of the main body 41, and the other end is set towards the hand handle 3, with the threaded rod threaded into the threaded hole.

[0072] When the threaded rod rotates, it moves relative to the main body 41 along the axial direction of the threaded hole under the action of the thread. When the end of the threaded rod abuts against the surface of the handle 3, friction restricts the movement of the main body 41 relative to the handle 3. When the end of the threaded rod separates from the surface of the handle 3, the main body 41 can slide along the handle 3. The threads of the threaded rod and the thread of the threaded hole are self-locking threads, meaning that the threaded rod will not rotate under the action of the thread when subjected to an axial external force, thus preventing the threaded rod from loosening on its own in a tightened state.

[0073] The end of the threaded rod away from the hand handle 3 can be fixedly connected to the handle structure. The handle structure is located on the outside of the main body 41 and extends radially along the threaded rod, so that the handle structure is available for the operator to hold, so as to facilitate the operator to rotate the threaded rod.

[0074] In some embodiments, the main body 41 is provided with a mounting hole, and the handle 3 is cylindrical and passes through the mounting hole, so that the main body 41 can slide along the handle 3 and can rotate relative to the handle 3.

[0075] With this configuration, the mounting hole of the main body 41 and the cylindrical handle 3 cooperate to realize the dual movement of sliding and rotating of the main body 41 along the handle 3. This enables the presser foot 4 to have the dual functions of position adjustment along a third direction and angle adjustment along the circumference of the handle 3. This allows the main body 41 to flexibly adapt to the battery tab pressing requirements of different positions and angles, greatly improving the versatility and adaptability of the tooling.

[0076] Specifically, the mounting hole is a circular through hole, located at the center of the main body 41 and penetrating through the main body 41. The handle 3 is a cylindrical rod, the diameter of which is matched with the diameter of the mounting hole. After the handle 3 is inserted into the mounting hole, the handle 3 has a clearance fit with the inner wall of the mounting hole or fits against the inner wall of the mounting hole, allowing the main body 41 to rotate around the axis of the handle 3.

[0077] When the pressing surface of the battery tab to be welded is not perpendicular to the axis of the hand lever 3, or when it is necessary to adjust the pressing angle of the presser foot 4 to adapt to the tilted state of the tab, the operator can directly rotate the main body 41. The main body 41 rotates around the axis of the hand lever 3 so that the main body 41 and the pressing surface of the battery tab cooperate with each other.

[0078] In some embodiments, the main body 41 includes a mounting block 411 and a pressing member 42. The mounting block 411 is movably connected to the hand handle 3, and fasteners are provided on the mounting block 411. The pressing member 42 includes a connecting part 421 and an abutting part 422. One end of the connecting part 421 is connected to the mounting block 411, and the other end is fixedly connected to the abutting part 422. The abutting part 422 is inclined relative to the connecting part 421, and a welding hole for welding equipment to pass through is formed on the abutting part 422.

[0079] With this configuration, the mounting block 411 focuses on the movable connection and fixation with the handheld lever, while the pressing component focuses on the pressing contact with the electrode tab. This facilitates the replacement of the pressing component according to different electrode tab specifications, reducing maintenance costs. The inclined design of the abutment part 422 relative to the connecting part 421 allows the abutment surface to naturally face the first track assembly 1, precisely adapting to the pressing requirements of the inclined electrode tab, achieving surface contact pressing, improving the uniformity of pressure distribution, effectively eliminating local gaps, and ensuring consistent heat conduction during welding.

[0080] Specifically, the mounting block 411 serves as the basic component for connecting the main body 41 to the hand handle 3. Mounting holes are provided on the mounting block 411, and fasteners are also provided on the mounting block 411.

[0081] The pressing member 42 is a component that directly contacts the battery tabs and applies pressure. The connecting part 421 and the abutting part 422 can be manufactured using an integrated molding process or connected to each other by welding.

[0082] The connecting part 421 and the abutting part 422 are both plate structures. There is an angle between the extending directions of the connecting part 421 and the abutting part 422, causing them to tilt relative to each other. The side of the abutting part 422 facing the worktable is the abutting surface, which abuts against the electrode tab when the tab is pressed. The connecting part 421 can be welded to the mounting block 411, or it can be fixed to the mounting block 411 using multiple bolts.

[0083] The welding hole on the abutment part 422 is a through hole that extends through the abutment part 422 in the second direction. When the abutment part 422 presses the tab, the welding hole on the abutment part 422 will connect to the tab of the circuit. The welding head of the welding device enters the welding hole to perform welding operation on the tab.

[0084] When the battery welding auxiliary tooling provided in this application embodiment is used, the battery to be welded is placed in the positioning frame of the workbench. The operator first pushes the first slider 12 to move the first slider 12 to a suitable position, and then locks the locking structure on the first slider 12.

[0085] Then, the operator holds the anti-slip sleeve 31 to drive the hand lever 3 to rotate horizontally, so that the hand lever 3 is located on the top side of the battery. The fastener is adjusted to a loose state, and the mounting block 411 is pushed by hand to adjust the position of the mounting block 411 on the hand lever 3 and the angle of the mounting block 411 relative to the hand lever 3, so that the abutment part 422 is aligned with the electrode tab on the top of the battery, thereby completing the alignment operation of the pressure foot 4.

[0086] After aligning the pressure foot 4, the operator rotates the threaded rod until it abuts against the handle 3 to ensure the main body 41 is positioned on the handle 3. Finally, the operator presses down on the handle 3, causing the second slider 22 to slide downwards on the sliding post 21, so that the abutment part 422 presses against the battery tabs. The welding device then performs welding operations on the tabs through the welding holes.

[0087] After the welding operation is completed, the operator stops applying force to the hand lever 3. The spring drives the hand lever 3 to move upward and reset, removing the welded battery from the workbench. The new battery to be welded is placed in the positioning frame of the workbench. At this time, the pressure foot 4 is positioned vertically opposite the tabs of the new battery to be welded. The operator only needs to press down the hand lever 3 to complete the pressing and welding of the tabs.

[0088] When replacing batteries of different sizes or models, adjust the locking structure to the released state and the fasteners to the loose state. According to the position of the tabs of the new battery model, repeat the above steps to readjust the position of the pressure foot 4 and perform welding operations on the tabs.

[0089] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0090] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A battery welding auxiliary tooling, characterized in that, Includes the worktable and the pressing mechanism; The pressing mechanism includes a first track assembly (1) extending in a first direction, a second track assembly (2) extending in a second direction, a hand lever (3) extending in a third direction, and a presser foot (4) for pressing the tab. The first track assembly (1) is mounted on the workbench, the second track assembly (2) is slidably connected to the first track assembly (1), the hand handle (3) is slidably connected to the second track assembly (2), and the pressure foot (4) is movably mounted on the hand handle (3). The second track assembly (2) can slide along the first track assembly (1), the hand handle (3) can slide at least along the second track assembly (2), and the pressure foot (4) can slide along the hand handle (3); The first direction and the third direction are on the plane where the workbench is located and intersect, and the second direction is perpendicular to the workbench.

2. The battery welding auxiliary tooling according to claim 1, characterized in that, The second track assembly (2) includes a sliding post (21) and a second slider (22), the second slider (22) is provided with an assembly hole, and the sliding post (21) is slidably connected to the assembly hole; The sliding column (21) is slidably connected to the first track assembly (1), and the hand handle (3) is fixedly connected to the second slider (22).

3. The battery welding auxiliary tooling according to claim 2, characterized in that, The second track assembly (2) also includes a spring (24) and a limiting block (23), the limiting block (23) being connected to the sliding post (21) and disposed on the side of the second slider (22) near the first track assembly (1); The spring (24) is sleeved on the sliding post (21) and abuts against the limiting block (23) and the second slider (22).

4. The battery welding auxiliary tooling according to claim 2, characterized in that, The bottom end of the sliding column (21) is slidably connected to the first track assembly (1), and the top end is provided with a limiting structure (25). The limiting structure (25) restricts the sliding stroke of the second slider (22) on the sliding column (21). And / or, the sliding column (21) is cylindrical, and the second slider (22) can slide along the sliding column (21) and rotate around the sliding column (21).

5. The battery welding auxiliary tooling according to claim 1, characterized in that, The presser foot (4) includes a main body (41) and fasteners; The main body (41) is movably connected to the hand handle (3), and the fastener is provided on the main body (41) and can switch between a tight state and a loose state; When the fastener is in the fastened state, it engages with the hand lever (3) to limit the movement of the main body (41) relative to the hand lever (3); The fastener is disengaged from the hand lever (3) in the relaxed state, allowing the main body (41) to move relative to the hand lever (3).

6. The battery welding auxiliary tooling according to claim 5, characterized in that, The fastener includes a threaded rod, and the main body (41) is provided with a threaded hole, and the threaded rod is threaded into the threaded hole; The threaded rod rotates to move axially within the threaded hole, causing the threaded rod to abut against the hand lever (3) to put the fastener in the tightened state, or to separate from the hand lever (3) to put the fastener in the loosened state.

7. The battery welding auxiliary tooling according to claim 5, characterized in that, The main body (41) is provided with a mounting hole, and the hand handle (3) is cylindrical and passes through the mounting hole, so that the main body (41) can slide along the hand handle (3) and can rotate relative to the hand handle (3); And / or, the main body (41) includes a mounting block (411) and a pressing member (42), the mounting block (411) being movably connected to the hand handle (3), and the fastener being disposed on the mounting block (411); The pressing member (42) includes a connecting part (421) and an abutting part (422). One end of the connecting part (421) is connected to the mounting block (411), and the other end is fixedly connected to the abutting part (422). The abutting part (422) is inclined relative to the connecting part (421), and a welding hole for welding equipment to pass through is formed on the abutting part (422).

8. The battery welding auxiliary tooling according to any one of claims 1 to 7, characterized in that, The end of the handheld lever (3) away from the second track assembly (2) is provided with an anti-slip sleeve (31).

9. The battery welding auxiliary tooling according to any one of claims 1 to 7, characterized in that, The first track assembly (1) includes a slide rail (11) and a first slider (12). The slide rail (11) extends along the first direction and is fixed on the worktable. The first slider (12) is slidably connected to the slide rail (11). The second track assembly (2) is fixedly connected to the first slider (12).

10. The battery welding auxiliary tooling according to claim 9, characterized in that, A damping structure is provided between the slide rail (11) and the first slider (12), and the damping structure provides damping for the sliding of the first slider (12) along the slide rail (11); And / or, the first slider (12) is provided with a locking structure, which can switch between a locked state and a released state. When the locking state is locked, the locking structure cooperates with the slide rail (11) to limit the sliding of the first slider (12) relative to the slide rail (11); The locking structure is separated from the slide rail (11) when the unlocked state is reached.

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