A current collector punching device with online punching depth adjustment function

Abstract

This invention provides a punching device for current collectors with online depth adjustment. A swing mechanism drives the blade plate in horizontal reciprocating motion, and a spring mechanism enables continuous punching and swinging of the blade, thereby continuously manufacturing multi-hole meshes with uniform hole shapes and consistent wire diameters. Simultaneously, the depth adjustment mechanism precisely adjusts the punching depth online, enabling hole processing with different wire diameters, meeting the high-precision production requirements of ultra-thin multi-hole current collectors for quasi-solid-state batteries. The blade plate is fixedly installed at the bottom of the blade plate; the blade plate is used to drive the blade plate vertically downwards under external driving force; the spring mechanism provides upward rebound force when the blade plate moves to its lowest position; the depth adjustment mechanism is fixedly connected to the top of the blade plate to adjust the vertical reciprocating distance of the blade plate; the spring mechanism is fixedly connected to the depth adjustment mechanism; the swing mechanism is installed on both sides of the blade plate to drive the blade plate horizontally under external driving force.

Description

Technical Field

[0001] This invention belongs to the field of quasi-solid-state battery manufacturing technology, and relates to a current collector drilling device with online drilling depth adjustment function. Background Technology

[0002] Quasi-solid-state batteries have become a research hotspot in the field of electrochemical energy storage due to their significant advantages in energy density and safety. In the manufacturing process of these batteries, porous current collectors are one of the core components determining battery performance. Their porous structure effectively increases the contact area between the electrode material and the current collector, improving ion transport efficiency. The porous processing of ultra-thin metal foils (such as copper and aluminum foils) places extremely high demands on the precision of the punching depth control equipment. Traditional current collector punching equipment often uses fixed molds or roller punching methods; once the equipment is finalized, its punching depth is fixed. For example, Chinese patent CN215471608U discloses a punching device for a current collector, including a punching device box, a winding device, an unwinding device, a punching roller device, and a pressure roller. The punching roller device includes a quick-release punching needle roller, which can be quickly replaced by a locking screw engaging with the punching needle roller in a groove. The device is also equipped with a punching roller cleaning device and a dust collection device to clean dust and particles from the punching roller and the surface of the current collector, and to collect waste generated during the punching process. This solution, through the detachable punching needle roller design, facilitates the replacement and maintenance of punching needles to a certain extent.

[0003] However, the existing equipment mentioned above uses a roller punching method with a fixed punching depth. It lacks a precise fine-tuning mechanism for the punching depth and cannot be adjusted online according to production needs. When it is necessary to produce hole patterns with different wire diameters, the machine must be stopped and the entire punching needle roller must be replaced. It is impossible to achieve online adjustment without stopping the machine and it is difficult to meet the production needs of ultra-thin porous current collectors for quasi-solid-state batteries with different wire diameters. Summary of the Invention

[0004] To address the technical problems of fixed punching depth, inability to adjust online, and the need for machine shutdown when replacing punching needle rollers in the prior art, this invention provides a current collector punching device with online punching depth adjustment. This device utilizes the inclined surface cooperation structure of the upper and lower sliders in the punching depth adjustment mechanism to drive the lead screw, which in turn drives the lower slider to slide horizontally. This allows for precise adjustment of the up-and-down reciprocating movement distance of the cutter plate, achieving online fine-tuning of the punching depth without machine shutdown. It can flexibly adapt to the production needs of different wire diameters and hole types.

[0005] The technical solution adopted by this invention to solve its technical problem is as follows: A current collector punching device with online punching depth adjustment function includes a blade plate, a blade body fixedly installed at the bottom of the blade plate, and a punching depth adjustment mechanism fixedly connected to the top of the blade plate; The blade plate is connected to an external driving component for transmission, and is used to drive the blade body to move vertically for punching by driving force; The punching depth adjustment mechanism is used to adjust the punching depth of the cutter body, and includes: The base is fixedly connected to the top of the blade plate; The upper slider is a wedge-shaped block, which is fixedly installed inside the base; The lower slider is a wedge-shaped block that is slidably installed inside the base and located below the upper slider. The lower surface of the upper slider is engaged with the inclined surface of the upper surface of the lower slider. The lead screw is threadedly connected to the lower slider and is used to drive the lower slider to slide horizontally within the base, so as to drive the upper slider and the blade plate to adjust up and down through the inclined surface cooperation; A pressure cap is fixedly installed at each of the two ends of the base through which the lead screw passes; the end of the lead screw is rotatably inserted into the corresponding pressure cap for axial limiting of the lead screw.

[0006] Furthermore, the depth adjustment mechanism also includes a handwheel, which is fixedly connected to one end of the lead screw and is used to drive the lead screw to rotate; the handwheel is provided with a scale to display the adjustment amount.

[0007] Furthermore, the drawing depth adjustment mechanism also includes: The upper surface of the slide connecting plate is fixedly connected to the base. A slide table is mounted on the lower surface of the slide table connecting plate and slidably connected to the slide table connecting plate. The lower surface of the slide table is fixedly connected to the top of the blade plate. The outer end of the slide plate has a vertically downward extending limiting portion to limit the maximum sliding position of the slide.

[0008] Furthermore, it also includes a rebound mechanism, which is fixedly connected to the slide connecting plate and is used to provide an upward rebound force when the blade moves downward to the lowest position.

[0009] Furthermore, the springback mechanism includes: The spring pad is fixedly connected to the external body and serves as a fixed support end for the entire drilling device. Long bolts are slidably inserted into the spring washer to guide the vertical extension and retraction of the spring mechanism; Spring a is fitted onto a long bolt and located above a spring washer; the bottom end of spring a abuts against the upper surface of the spring washer, and the top end abuts against a spring cap; the spring cap is fitted onto the long bolt. The nut is threaded onto the upper end of the long bolt and abuts against the upper surface of the spring cap, used to adjust the compression of spring a; The connecting plate, attached to the bottom of the long bolt, is used to fix the connecting plate of the slide.

[0010] Furthermore, it also includes a swing mechanism, installed on both sides of the blade plate, used to drive the blade plate to move horizontally along the slide plate connecting plate via an external driving force.

[0011] Furthermore, the swing mechanism includes: The swinging part is installed on one side wall of the blade in the horizontal direction, and is used to drive the blade to move in the opposite direction by an external driving force. The springback section is installed on the side wall of the end opposite to the swing section of the blade plate, and is used to provide a reverse springback force to drive the blade plate to reset after the swing section is driven.

[0012] Furthermore, the swinging part includes: The swing part mounting plate is fixedly connected to the side wall of the blade plate by bolts, and is used as a fixed support end of the swing part, and a gap is formed between one end face of the swing part mounting plate and the side wall of the blade plate; The swing shaft housing is fixedly connected to the other end face of the swing part mounting plate; A swing shaft is slidably installed inside a swing shaft housing; one end of the swing shaft extends out of the swing shaft housing and into the gap between the swing part mounting plate and the blade plate, and a bearing a is embedded at this end, which rolls against the side wall of the blade plate; the other end of the swing shaft extends out of the swing shaft housing, and a bearing b is embedded at this end, which rolls against the external drive component. An axially extending adjustment groove is provided on the shell of the swing shaft housing. A limiting screw a is fixedly installed on the shaft of the swing shaft located inside the swing shaft housing. The limiting screw a extends upward and is slidably disposed in the adjustment groove. An adjustment nut is threaded onto the outer wall of the swing shaft housing. The adjustment nut is located on the reset movement path of the limiting screw a and is used to limit the maximum reset position of the swing shaft by abutting against the limiting screw a.

[0013] Furthermore, the springback portion includes: The spring-loaded mounting plate is fixedly connected to the side wall of the blade plate by bolts, and is used as a fixed support end of the spring-loaded part. A gap is formed between one end face of the spring-loaded mounting plate and the side wall of the blade plate. The spring shaft housing is fixedly connected to the other end face of the spring section mounting plate; Spring b is installed inside the spring shaft housing; A spring shaft is slidably disposed within the spring shaft housing; one end of the spring shaft is located inside the spring shaft housing and abuts against one end of the spring b, and the other end of the spring shaft extends out of the spring shaft housing and extends into the gap between the spring mounting plate and the blade plate. A bearing c is embedded in this end, and the bearing c rolls against the side wall of the blade plate.

[0014] Furthermore, a limiting groove extending axially is provided on the shell of the spring shaft housing, and a limiting screw b is fixedly installed on the shaft of the spring shaft located inside the spring shaft housing. The limiting screw b extends upward and is slidably disposed in the limiting groove, and is used to limit the extension range of the spring shaft by abutting against the two ends of the limiting groove. The spring-rebound part also includes an adjusting screw. One end of the adjusting screw extends into the inside of the spring-rebound shaft housing and abuts against the end of the spring b away from the spring-rebound shaft. The other end of the adjusting screw passes through the end cap at the tail of the spring-rebound shaft housing and is threadedly connected to the end cap, which is used to adjust the spring-rebound force of the spring b.

[0015] The beneficial effects of this invention include: The punching depth adjustment mechanism utilizes a beveled structure between the upper and lower sliders. When the lead screw drives the lower slider to slide horizontally, the beveled surface of the lower slider pushes the upper slider to move vertically. Since the upper slider is fixedly connected to the cutter plate, its up-and-down movement drives the cutter plate and cutter body to move synchronously up and down, thus adjusting the punching depth. The axial limiting structure of the lead screw, achieved by the pressure cap, prevents axial movement during rotation, ensuring the accuracy and stability of the lower slider's horizontal movement. This coordinated structure allows operators to precisely adjust the punching depth of the cutter body online simply by rotating the lead screw, without needing to stop the machine to change the mold or punching roller. This solves the technical problems of existing roller punching devices, such as fixed punching depth, inability to adjust online, and the need to stop the machine to change the punching roller. The handwheel, fixedly connected to one end of the lead screw and equipped with a dial, allows operators to precisely control the adjustment amount based on the dial display, achieving quantitative adjustment of the punching depth and further improving the convenience and accuracy of the adjustment.

[0016] In addition, this application also includes a spring-back mechanism and a swing mechanism. The spring-back mechanism provides an upward spring-back force when the blade moves downward to its lowest position, thereby forming a reciprocating up-and-down motion of the blade. The swing mechanism is installed on both sides of the blade and is used to drive the blade to move horizontally under external driving force. Through the cooperation of the above structures, the blade can simultaneously achieve vertical reciprocating up-and-down motion and horizontal reciprocating swing, thereby continuously manufacturing a porous mesh structure with uniform hole shape and consistent wire diameter.

[0017] By adjusting the nut and spring cap in the rebound mechanism, the compression of spring a can be adjusted, thereby adjusting the rebound force and rebound speed, making the up-and-down reciprocating motion of the blade plate more stable and reliable.

[0018] By using the sliding engagement between the adjustment groove on the swing shaft housing and the limiting screw a, as well as the abutting structure between the adjustment nut and the limiting screw a, the maximum reset position of the swing shaft can be precisely limited, thereby adjusting the swing amplitude of the cutter plate and achieving fine-tuning of the hole shape. By using the sliding engagement between the limiting groove on the return shaft housing and the limiting screw b, the extension and retraction range of the return shaft can be limited, ensuring the stability and consistency of the return action. By using the abutting structure between the adjustment screw and the end of the spring b furthest from the return shaft, the compression of the spring b can be adjusted, thereby adjusting the return force of the return part, making the horizontal reciprocating swing of the cutter plate more stable and controllable. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall wire mesh making mechanism of the present invention; Figure 2 A front view of the assembly structure of the blade plate, blade body, and depth of drawing adjustment mechanism; Figure 3 A schematic diagram of the back of the assembly structure for the cutter plate, cutter body, and depth of drawing adjustment mechanism; Figure 4 This is a schematic diagram of the overall structure of the springback mechanism; Figure 5 A schematic diagram of the overall structure of the drawing depth adjustment mechanism; Figure 6 This is a schematic diagram of part of the drawing depth adjustment mechanism; Figure 7 This is a schematic diagram of the swing section of the swing mechanism; Figure 8 This is a schematic diagram of the springback section of the swing mechanism; Figure 9 This is a schematic diagram of the blade structure; Figure 10 This is a front view of the blade structure; Figure 11 This is a side view of the blade structure.

[0020] In the diagram: 1. Cutting plate; 2. Cutting body; 3. Drawing depth adjustment mechanism; 4. Springback mechanism; 5. Swinging mechanism; 1-1. Wear-resistant block; 1-2. Wear-resistant plate; 2-1. Blade base; 2-2. Inlaid alloy strips; 3-1. Base; 3-2. Upper slider; 3-3. Lower slider; 3-4. Lead screw; 3-5. Pressure cap; 3-6. Slide connecting plate; 3-6-1. Limiting part; 3-7. Slide; 3-8. Handwheel; 4-1. Spring washer; 4-2. Connecting plate; 4-3. Spring cap; 4-4. Spring a; 4-5. Nut; 4-6. Long bolt; 5-1. Swing shaft housing; 5-2. Adjusting nut; 5-3. Swing shaft; 5-4. Bearing b; 5-5. Swing part mounting plate; 5-6. Limit screw a; 5-7. Bearing a; 5-8. End cover; 5-9. Springback part mounting plate; 5-10. Springback shaft housing; 5-11. Springback shaft; 5-12. Spring b; 5-13. Bearing c; 5-14. Limit screw b; 5-15. Adjusting screw. Detailed Implementation

[0021] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the technical features involved in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

[0023] Example 1: As Figures 1 to 9 As shown, this embodiment provides a punching device for a porous current collector with online punching depth adjustment, including a blade plate 1, a blade body 2, a punching depth adjustment mechanism 3, a spring mechanism 4, and a swing mechanism 5. The blade body 2 is fixedly installed at the bottom of the blade plate 1 and is used to punch mesh holes in the porous current collector. The punching depth adjustment mechanism 3 is fixedly connected to the top of the blade plate 1 and is used to adjust the vertical reciprocating distance of the blade plate 1 (i.e., the punching depth). The spring mechanism 4 is fixedly connected above the punching depth adjustment mechanism 3 and is used to provide an upward spring force when the blade plate 1 moves downward to its lowest position, allowing the blade plate 1 to automatically return to its original position. The swing mechanism 5 is installed on the left and right sides of the blade plate 1 and is used to drive the blade plate 1 to swing horizontally in a reciprocating manner under external driving force.

[0024] In this embodiment, two springback mechanisms 4 and two depth adjustment mechanisms 3 are provided, respectively installed at both ends of the blade plate 1, as follows: Figure 1 As shown, this ensures the force balance and smooth movement of the blade 1 during its reciprocating motion. The two springback mechanisms 4 and the two depth adjustment mechanisms 3 have identical structures and operate synchronously.

[0025] The above-mentioned mechanisms work together to enable the blade 1 to simultaneously achieve vertical reciprocating motion and horizontal reciprocating oscillation, thereby continuously producing a porous mesh structure with uniform hole shape and consistent wire diameter.

[0026] like Figure 4 As shown, the springback mechanism 4 includes a spring pad 4-1, a connecting plate 4-2, a spring cover 4-3, a spring a 4-4, a nut 4-5, and a long bolt 4-6.

[0027] Spring pad 4-1 is fixedly connected to the external body, serving as the fixed support end of the entire net-making mechanism and providing a stable mounting base for the rebound mechanism 4. Long bolt 4-6 slides through spring pad 4-1, sliding vertically relative to spring pad 4-1 to guide the vertical extension and retraction of the rebound mechanism 4, preventing skewing during movement. Spring a4-4 is fitted onto long bolt 4-6 and positioned above spring pad 4-1. The bottom end of spring a4-4 abuts against the upper surface of spring pad 4-1, and the top end abuts against spring cap 4-3. Spring cap 4-3 is fitted onto long bolt 4-6 to press down the top end of spring a4-4. Nut 4-5 is threaded onto the upper end of long bolt 4-6 and abuts against the upper surface of spring cap 4-3. By rotating the nut 4-5, the position of the spring cap 4-3 on the long bolt 4-6 can be adjusted, thereby changing the compression of the spring a4-4, and thus adjusting the magnitude of the rebound force and the rebound speed. The connecting plate 4-2 is fixedly connected to the bottom end of the long bolt 4-6, and is used to fixally connect to the depth adjustment mechanism 3, driving the depth adjustment mechanism 3 and the blade plate 1 below to rebound.

[0028] like Figure 5 and Figure 6 As shown, the depth adjustment mechanism 3 includes a slide plate 3-6, a slide 3-7, a base 3-1, a lower slide block 3-3, a lead screw 3-4, a pressure cap 3-5, a handwheel 3-8, and an upper slide block 3-2.

[0029] The upper surface of the slide connecting plate 3-6 is fixedly connected to the connecting plate 4-2 of the rebound mechanism 4, and the lower surface is fitted with the slide 3-7 and slidably connected to it. The lower surface of the slide 3-7 is fixedly connected to the top of the blade 1. The function of the slide 3-7 is to allow relative sliding between the slide connecting plate 3-6 and the blade 1 when the blade 1 swings horizontally, thereby keeping the upper depth adjustment mechanism 3 and the rebound mechanism 4 in a constant position, reducing motion resistance, and making the overall operation smoother. Preferably, the outer end of the slide connecting plate 3-6 has a vertically downward extending limiting part 3-6-1 to limit the maximum sliding position of the slide 3-7, prevent the slide 3-7 from dislodging, and improve the safety of equipment operation.

[0030] The base 3-1 is fixedly installed on the upper surface of the slide connecting plate 3-6. The base 3-1 has a receiving groove to accommodate the upper slider 3-2 and the lower slider 3-3. The upper slider 3-2 is a wedge-shaped block, assembled within the receiving groove with both ends fixedly connected to the inner wall of the groove, and its position is relatively fixed. The lower slider 3-3 is also a wedge-shaped block, slidably assembled within the receiving groove, located below the upper slider 3-2. The lower surface of the upper slider 3-2 and the upper surface of the lower slider 3-3 are both inclined surfaces and fit together, forming an inclined surface fit. When the lower slider 3-3 moves horizontally, its inclined surface pushes the upper slider 3-2 to move vertically up and down.

[0031] A horizontally penetrating threaded connection hole is provided in the middle of the lower slider 3-3, through which a lead screw 3-4 is threadedly connected. The two ends of the lead screw 3-4 protrude from the two ends of the base 3-1, respectively. A pressure cap 3-5 is fixedly installed at each end of the base 3-1 where the lead screw 3-4 protrudes. The end of the lead screw 3-4 rotatably passes through the corresponding pressure cap 3-5, which serves to axially limit the lead screw 3-4, preventing axial movement during rotation, while allowing the lead screw 3-4 to rotate freely. A handwheel 3-8 is fixedly connected to the end of the lead screw 3-4 that protrudes from the base 3-1, and is used to drive the lead screw 3-4 to rotate. The handwheel 3-8 is equipped with a dial to display the adjustment amount, allowing the operator to precisely control the adjustment range according to the dial.

[0032] The working principle of the depth adjustment mechanism is as follows: When the operator rotates the handwheel 3-8, the handwheel 3-8 drives the lead screw 3-4 to rotate, and the lead screw 3-4 drives the lower slide block 3-3 to move horizontally through the threaded connection. Since the upper slide block 3-2 and the lower slide block 3-3 are in inclined plane fit, the horizontal movement of the lower slide block 3-3 is converted into the vertical up-and-down movement of the upper slide block 3-2. Since the upper slide block 3-2 is fixedly connected to the base 3-1, the base 3-1, the slide connecting plate 3-6, the slide 3-7, and the cutter plate 1 move up and down together with the upper slide block 3-2 as a whole, thereby realizing the online precise fine adjustment of the up-and-down reciprocating movement distance of the cutter plate 1 (i.e., the punching depth).

[0033] like Figure 7 and Figure 8 As shown, the swing mechanism 5 includes a swinging part and a rebound part. The swinging part is mounted on one end of the blade plate 1 in the horizontal direction. Figure 1 The left side wall is used to drive the blade 1 to the opposite side by external driving force. Figure 1 (Right side) movement. The springback part is installed at the end of the blade plate 1 opposite to the swing part. Figure 1 The right side wall is used to provide a reverse rebound force after the swinging part finishes driving, so as to drive the blade plate 1 to reset, thereby realizing the continuous reciprocating swing of the blade plate 1.

[0034] The swing part includes a swing part mounting plate 5-5, a swing shaft housing 5-1, a swing shaft 5-3, bearing a5-7, bearing b5-4, a limit screw a5-6, and an adjusting nut 5-2.

[0035] The swing part mounting plate 5-5 is fixedly connected to the side wall of the blade plate 1 by bolts, serving as the fixed support end of the swing part. A gap is formed between one end face of the swing part mounting plate 5-5 and the side wall of the blade plate 1, providing space for the movement of the swing shaft 5-3. The swing shaft housing 5-1 is fixedly connected to the other end face of the swing part mounting plate 5-5. The swing shaft 5-3 slides through the swing shaft housing 5-1 and can slide axially within it. One end of the swing shaft 5-3 extends out of the swing shaft housing 5-1 and into the gap between the swing part mounting plate 5-5 and the blade plate 1; a bearing a5-7 is fitted at this end, and the bearing a5-7 rolls against the side wall of the blade plate 1. The other end of the swing shaft 5-3 extends out of the swing shaft housing 5-1; a bearing b5-4 is fitted at this end, and the bearing b5-4 rolls against the external drive component. The external drive component specifically consists of a motor that drives the main shaft of the machine body to rotate. A planar cam is mounted on the main shaft, and the planar cam engages with bearing b5-4. By using bearings a5-7 and b5-4, sliding friction is converted into rolling friction, reducing motion resistance and improving transmission efficiency and service life.

[0036] An axially extending adjustment groove is formed on the shell of the swing shaft housing 5-1. A limiting screw a5-6 is fixedly mounted on the shaft of the swing shaft 5-3 inside the swing shaft housing 5-1. The limiting screw a5-6 extends upward and slides within the adjustment groove. The cooperation between the adjustment groove and the limiting screw a5-6 guides the sliding of the swing shaft 5-3 and restricts its circumferential rotation. An adjusting nut 5-2 is threaded onto the outer wall of the swing shaft housing 5-1. The adjusting nut 5-2 is located on the reset path of the limiting screw a5-6 and is used to limit the maximum reset position of the swing shaft 5-3 by abutting against the limiting screw a5-6. By rotating the adjusting nut 5-2, its contact position with the limiting screw a5-6 can be changed, thereby adjusting the swing amplitude of the cutter plate 1 and achieving fine-tuning of the hole shape.

[0037] The spring return section includes a spring return section mounting plate 5-9, a spring return shaft housing 5-10, a spring b5-12, a spring return shaft 5-11, a bearing c5-13, a limit screw b5-14, an adjusting screw 5-15, and an end cap 5-8.

[0038] The spring-loaded mounting plate 5-9 is fixedly connected to the side wall of the blade plate 1 by bolts, serving as a fixed support end for the spring-loaded part. A gap is formed between one end face of the spring-loaded mounting plate 5-9 and the side wall of the blade plate 1. The spring-loaded shaft housing 5-10 is fixedly connected to the other end face of the spring-loaded mounting plate 5-9. The spring b5-12 is installed inside the spring-loaded shaft housing 5-10. The spring-loaded shaft 5-11 is slidably disposed within the spring-loaded shaft housing 5-10, with one end located inside the spring-loaded shaft housing 5-10 and abutting against one end of the spring b5-12, and the other end extending out of the spring-loaded shaft housing 5-10 and into the gap between the spring-loaded mounting plate 5-9 and the blade plate 1. A bearing c5-13 is embedded in this end, and the bearing c5-13 rolls against the side wall of the blade plate 1.

[0039] The spring shaft housing 5-10 has an axially extending limiting groove on its shell. A limiting screw b5-14 is fixedly installed on the spring shaft 5-11 located inside the spring shaft housing 5-10. The limiting screw b5-14 extends upward and slides within the limiting groove. The limiting screw b5-14 moves with the spring shaft 5-11, and by abutting against the inner walls at both ends of the limiting groove, it limits the maximum extension and maximum retraction positions of the spring shaft 5-11, thereby limiting the extension and retraction range of the spring shaft 5-11 and ensuring the stability and consistency of the springback action.

[0040] The springback section also includes an adjusting screw 5-15. One end of the adjusting screw 5-15 extends into the springback shaft housing 5-10 and abuts against the end of the spring b5-12 away from the springback shaft 5-11. The other end of the adjusting screw 5-15 protrudes through the end cap 5-8 at the tail of the springback shaft housing 5-10 and is threadedly connected to the end cap 5-8. By rotating the adjusting screw 5-15, the compression of the spring b5-12 can be adjusted, thereby adjusting the springback force of the springback section and making the horizontal reciprocating oscillation of the blade plate 1 more stable and controllable.

[0041] During operation, the planar cam of the external drive unit pushes the swing shaft 5-3 towards the blade plate 1 via the swing bearing b5-4. The bearing a5-7 at the end of the swing shaft 5-3 pushes the blade plate 1 horizontally to the opposite side. Simultaneously, the external cam mechanism, driven by the motor, drives the blade plate 1 downwards, and the blade body 2 punches the porous current collector, forming half a mesh pattern. When the blade plate 1 reaches its lowest position, the return mechanism 4 provides an upward return force under the elastic force of the spring a4-4, causing the blade plate 1 to return to its original position. During the upward return of the blade plate 1, the driving force of the swing unit disappears, and the spring b5-12 in the return unit pushes the return shaft 5-11, which, through the bearing c5-13, pushes the blade plate 1 horizontally in the opposite direction. After the blade plate 1 returns to one side, it is again driven downwards by the external force and performs the next punching, thus forming the other half of the mesh pattern. This process repeats continuously, with the blade 1 cutting vertically up and down repeatedly while simultaneously oscillating horizontally, ultimately forming a complete and uniform porous mesh structure.

[0042] During the above process, the operator can adjust the punching depth online by rotating the handwheel 3-8, adjust the swing amplitude of the blade 1 by rotating the adjusting nut 5-2, adjust the rebound force of the spring mechanism 4 by rotating the nut 4-5, and adjust the rebound force of the spring part by rotating the adjusting screw 5-15, thereby achieving precise processing of different wire diameter widths and different hole diameters and hole types, meeting the high-precision and diversified production needs of ultra-thin porous current collectors for quasi-solid-state batteries.

[0043] Example 2: As Figure 9 As shown, based on Embodiment 1, the blade 1 is equipped with a wear-resistant block 1-1 and a wear-resistant plate 1-2. Specifically: Wear-resistant plates 1-2 are respectively installed on the front and rear sides of the blade plate 1 for sliding contact with the external front and rear clamping mechanisms. During the up-and-down reciprocating motion and horizontal reciprocating oscillation of the blade plate 1, relative sliding occurs between the wear-resistant plates 1-2 and the clamping mechanisms. By setting the wear-resistant plates 1-2, direct contact and friction between the blade plate 1 and the clamping mechanisms can be avoided, thereby reducing the wear of the blade plate 1 and extending its service life. At the same time, the wear-resistant plates 1-2 are made of high-hardness, high-wear-resistant materials (such as alloy steel or surface-hardened steel), which can withstand the frictional wear caused by long-term reciprocating motion, ensuring the smoothness and accuracy of the blade plate 1's movement.

[0044] Wear-resistant blocks 1-1 are respectively installed on the left and right sidewalls of the blade plate 1 for rolling contact with bearings a5-7 and c5-13 of the swing mechanism 5. Specifically, the wear-resistant block 1-1 at one end of the blade plate 1 rolls against bearing a5-7 at the end of the swing shaft 5-3 in the swing section, and the wear-resistant block 1-1 at the other end of the blade plate 1 rolls against bearing c5-13 at the end of the spring shaft 5-11 in the spring section. By setting the wear-resistant blocks 1-1, direct contact between the bearings and the blade plate 1 body can be avoided, preventing the sidewalls of the blade plate 1 from developing indentations or wear due to long-term rolling pressure from the bearings. The wear-resistant blocks 1-1 are also made of high-hardness, high-wear-resistant materials, capable of withstanding long-term rolling contact loads, ensuring the stability and reliability of power transmission between the blade plate 1 and the swing mechanism 5.

[0045] Preferably, both the wear-resistant plate 1-2 and the wear-resistant block 1-1 are installed in a detachable manner (such as by bolt fixing). When the wear-resistant plate 1-2 or the wear-resistant block 1-1 is worn to a certain extent, it can be easily replaced without replacing the entire blade plate 1, thus reducing the maintenance cost of the equipment.

[0046] Example 3: As Figure 10-11 As shown, based on Embodiment 2, the blade body 2 includes a blade base 2-1 and an inlaid alloy strip 2-2. The blade base 2-1 is the main structure of the blade, used to be fixedly connected to the blade plate 1 and to withstand the impact load during the punching process. The inlaid alloy strip 2-2 is fixedly connected to the blade base 1, serving as the cutting edge of the blade, and directly contacts the porous current collector to be processed for punching.

[0047] In this embodiment, the blade body 2 has a symmetrical structure, which makes it easy to replace the blade after one side is worn, without having to replace it with a new blade, thus reducing the cost of use.

[0048] The blade body 2-1 is made of 45# steel. 45# steel has high strength, good toughness, and low cost, making it suitable as the base material for cutting tools and capable of withstanding impact loads during the punching process.

[0049] The inlaid alloy strip 2-2 is made of W6Mo5Cr4V2, which has high hardness and excellent wear resistance. It can maintain the sharpness and shape accuracy of the cutting edge during long-term punching and extend the service life of the tool.

[0050] The inlaid alloy strip 2-2 is fixedly connected to the blade base 2-1 by fusion welding. Since the front and rear faces of the blade 2 are the main parts in direct contact with the mesh material during the manufacturing process of the porous current collector mesh, and also the areas with the greatest wear, two inlaid alloy strips 2-2 are used in this embodiment, respectively fixedly connected to the front and rear faces (i.e., the front and rear cutting edges of the blade 2) by fusion welding. This arrangement ensures the overall wear resistance of the tool while minimizing the amount of W6Mo5Cr4V2 material used, thereby reducing the manufacturing cost of the tool.

[0051] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A current collector punching device with online depth adjustment function, characterized in that, It includes a blade plate (1), a blade body (2) fixedly installed at the bottom of the blade plate (1), and a depth adjustment mechanism (3) fixedly connected to the top of the blade plate (1); The blade (1) is connected to the external drive component for transmission, and is used to drive the blade body (2) to move vertically for punching by the driving force; The punching depth adjustment mechanism (3) is used to adjust the punching depth of the cutter body (2), and includes: The base (3-1) is fixedly connected to the top of the blade (1); The upper slider (3-2) is a wedge-shaped block, which is fixedly installed inside the base (3-1); The lower slider (3-3) is a wedge-shaped block that is slidably installed in the base (3-1) and located below the upper slider (3-2). The lower surface of the upper slider (3-2) is engaged with the inclined surface of the upper surface of the lower slider (3-3). The lead screw (3-4) is threadedly connected to the lower slider (3-3) and is used to drive the lower slider (3-3) to slide horizontally within the base (3-1) so as to drive the upper slider (3-2) and the blade (1) to adjust up and down through the inclined surface cooperation; A pressure cap (3-5) is fixedly installed at each end of the base (3-1) through which the lead screw (3-4) passes; the end of the lead screw (3-4) is rotatably inserted into the corresponding pressure cap (3-5) to axially limit the lead screw (3-4).

2. The current collector drilling device with online depth adjustment function according to claim 1, characterized in that, The depth adjustment mechanism (3) also includes a handwheel (3-8), which is fixedly connected to one end of the lead screw (3-4) and is used to drive the lead screw (3-4) to rotate; the handwheel (3-8) is provided with a scale to display the adjustment amount.

3. A current collector drilling device with online depth adjustment function according to claim 1 or 2, characterized in that, The depth adjustment mechanism (3) further includes: The upper surface of the slide connecting plate (3-6) is fixedly connected to the base (3-1); The slide (3-7) is mounted on the lower surface of the slide connecting plate (3-6) and slidably connected to the slide connecting plate (3-6). The lower surface of the slide (3-7) is fixedly connected to the top of the blade (1). The outer end of the slide connecting plate (3-6) has a vertically downward extending limiting part (3-6-1) for limiting the maximum sliding position of the slide (3-7).

4. A current collector drilling device with online depth adjustment function according to claim 3, characterized in that, It also includes a springback mechanism (4), which is fixedly connected to the slide connecting plate (3-6) and is used to provide an upward springback force when the blade (1) moves downward to the lowest position.

5. A current collector drilling device with online depth adjustment function according to claim 4, characterized in that, The springback mechanism (4) includes: Spring pad (4-1) is fixedly connected to the external body and is used as a fixed support end for the entire drilling device; Long bolts (4-6) are slidably inserted into spring pads (4-1) to guide the vertical extension and retraction of the spring mechanism (4); Spring a (4-4) is fitted onto long bolt (4-6) and located above spring washer (4-1); the bottom end of spring a (4-4) abuts against the upper surface of spring washer (4-1), and the top end abuts against spring cap (4-3); spring cap (4-3) is fitted onto long bolt (4-6); Nut (4-5) is threaded onto the upper end of long bolt (4-6) and abuts against the upper surface of spring cap (4-3) to adjust the compression of spring a (4-4); The connecting plate (4-2) is attached to the bottom of the long bolt (4-6) and is used to fix the connecting plate (3-6) of the slide.

6. A current collector drilling device with online depth adjustment function according to claim 3, characterized in that, It also includes a swing mechanism (5), which is installed on both sides of the blade (1) and is used to drive the blade (1) to move horizontally along the slide plate (3-6) via the slide table (3-7) under external driving force.

7. A current collector drilling device with online depth adjustment function according to claim 6, characterized in that, The swing mechanism (5) includes: The swinging part is installed on one side wall of the blade (1) in the horizontal direction, and is used to drive the blade (1) to move in the opposite direction by external driving force; The spring-back section is installed on the side wall of the blade plate (1) opposite to the swing section, and is used to provide a reverse spring-back force to drive the blade plate (1) to reset after the swing section is driven.

8. A current collector drilling device with online depth adjustment function according to claim 7, characterized in that, The swinging part includes: The swing part mounting plate (5-5) is fixedly connected to the side wall of the blade plate (1) by bolts, and is used as the fixed support end of the swing part. A gap is formed between one end face of the swing part mounting plate (5-5) and the side wall of the blade plate (1). The swing shaft housing (5-1) is fixedly connected to the other end face of the swing part mounting plate (5-5); A swing shaft (5-3) is slidably installed inside a swing shaft housing (5-1); one end of the swing shaft (5-3) extends out of the swing shaft housing (5-1) and into the gap between the swing mounting plate (5-5) and the blade plate (1), and a bearing a (5-7) is installed at this end, which rolls against the side wall of the blade plate (1); the other end of the swing shaft (5-3) extends out of the swing shaft housing (5-1), and a bearing b (5-4) is installed at this end, which rolls against the external drive component; The swing shaft housing (5-1) has an axially extending adjustment groove on its shell. The swing shaft (5-3) is fixedly mounted on its shaft inside the swing shaft housing (5-1) with a limiting screw a (5-6). The limiting screw a (5-6) extends upward and slides within the adjustment groove. An adjustment nut (5-2) is threaded onto the outer wall of the swing shaft housing (5-1). The adjustment nut (5-2) is located on the reset movement path of the limiting screw a (5-6) and is used to limit the maximum reset position of the swing shaft (5-3) by abutting against the limiting screw a (5-6).

9. A current collector drilling device with online depth adjustment function according to claim 7, characterized in that, The springback section includes: The spring-loaded mounting plate (5-9) is fixedly connected to the side wall of the blade plate (1) by bolts, and is used as a fixed support end of the spring-loaded part. A gap is formed between one end face of the spring-loaded mounting plate (5-9) and the side wall of the blade plate (1). The spring shaft housing (5-10) is fixedly connected to the other end face of the spring section mounting plate (5-9); Spring b (5-12) is installed inside the spring shaft housing (5-10); A spring shaft (5-11) is slidably disposed inside the spring shaft housing (5-10); one end of the spring shaft (5-11) is located inside the spring shaft housing (5-10) and abuts against one end of the spring b (5-12); the other end of the spring shaft (5-11) passes through the spring shaft housing (5-10) and extends into the gap between the spring part mounting plate (5-9) and the blade plate (1); a bearing c (5-13) is embedded in this end, and the bearing c (5-13) rolls against the side wall of the blade plate (1).

10. A current collector drilling device with online depth adjustment function according to claim 9, characterized in that, The spring shaft housing (5-10) has an axially extending limiting groove on its shell. The spring shaft (5-11) is fixedly mounted on its shaft inside the spring shaft housing (5-10). The limiting screw b (5-14) extends upward and slides in the limiting groove to limit the extension range of the spring shaft (5-11) by abutting against both ends of the limiting groove. The rebound section also includes an adjusting screw (5-15). One end of the adjusting screw (5-15) extends into the inside of the rebound shaft housing (5-10) and abuts against the end of the spring b (5-12) away from the rebound shaft (5-11). The other end of the adjusting screw (5-15) passes through the end cap (5-8) at the tail of the rebound shaft housing (5-10) and is threadedly connected to the end cap (5-8) to adjust the rebound force of the spring b (5-12).

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