Lithium battery tab aligning device

Abstract

The utility model discloses a lithium battery processing field's a kind of lithium battery lug sending normalizing device, comprising: guide mechanism, including guide wheel and the driving device of driving guide wheel rotation;Clamping and feeding device, including cylinder clamp and transmission motor, at least one recess bearing is provided on the cylinder clamp;Normalizing device, including first base and second base, limit baffle is installed on the first base, and the limit baffle forms limit recess with the first base;The limit baffle is adjustably installed on the first base, machine table, for installing the guide mechanism, the clamping and feeding device and the normalizing device;Lithium battery lug sending normalizing device provided by the utility model sets up guide mechanism, clamping and feeding device and normalizing device, realize the linear transmission of lug strip. Rotating guide wheel can avoid the lug strip from sliding out of guide groove when conveying, and the width of limit recess is adjustable, to realize the conveying of lug strip of different specifications.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery processing, and in particular to a lithium battery tab alignment device. Background Technology

[0002] Lithium-ion pouch batteries possess excellent performance characteristics such as long cycle life, high energy density, and small size. They also have low internal resistance, which helps reduce self-discharge and gives them good cycle life and rate performance. The positive and negative electrodes are welded to copper-aluminum foil using an ultrasonic welding machine via a tab feeding mechanism. Then, a winding device assembles the battery's positive and negative plates and separator into a square cell through continuous rotation.

[0003] In the above process, the traditional electrode feeding mechanism is too simple and has poor stability, which leads to electrode welding misalignment. In particular, when changing models, the debugging is troublesome and the installation is complicated, which directly restricts the welding quality and seriously affects the battery performance. Utility Model Content

[0004] The purpose of this invention is to provide a lithium battery tab straightening device that uses a guide groove, a groove bearing, and a limiting groove to keep the tab strip in a straight line during transmission and prevent the tab strip from deviating.

[0005] To solve the above technical problems, the following technical solution is adopted: This utility model provides a lithium battery tab alignment device, comprising: The guiding mechanism includes a guide wheel and a drive device for driving the guide wheel to rotate. The guide wheel is provided with a guide groove, and a portion of the electrode strip is disposed in the guide groove. The guide groove is used to position the electrode strip and to guide it during the transmission of the electrode strip. The clamping device includes a cylinder clamp and a transmission motor. The cylinder clamp has at least one groove bearing, and the groove bearing has a groove for positioning the pole tab. The cylinder clamp is used to clamp the pole tab, and the transmission motor is used to drive the cylinder clamp to move in a direction parallel to the pole tab. The alignment device includes a first base and a second base. The first base is adjustablely mounted on the second base, and the adjustment direction is perpendicular to the pole tab. A limiting baffle is installed on the first base, and the limiting baffle forms a limiting groove with the first base. A portion of the pole tab is located in the limiting groove. The limiting baffle is adjustablely mounted on the first base, and the adjustment direction is perpendicular to the pole tab. Adjusting the position of the limiting baffle changes the width of the limiting groove. A machine base for mounting the guiding mechanism, the clamping device, and the alignment device; The clamping device is located between the guiding mechanism and the straightening device, and the electrode strip is conveyed from the guiding mechanism to the straightening device.

[0006] Optionally, the driving device includes a first synchronous pulley, a second synchronous pulley, and a drive motor. The first synchronous pulley and the second synchronous pulley are connected by a synchronous belt. The first synchronous pulley is connected to the output shaft of the drive motor, driving the first synchronous pulley to rotate and driving the second synchronous pulley to rotate via the synchronous belt. The second synchronous pulley is installed with the guide wheel, and the second synchronous pulley drives the guide wheel to rotate.

[0007] Optionally, both the second synchronous pulley and the guide pulley are mounted on the mounting shaft via bearings. The two ends of the mounting shaft are fixedly mounted on the machine base. A spring is provided on the end of the mounting shaft where the second synchronous pulley is located, and a locking nut is provided on the end where the guide pulley is located. The guide pulley is adjusted to its position on the mounting shaft by the locking nut. The mounting shaft is arranged perpendicular to the pole lug.

[0008] Optionally, the spring is in a compressed state, with one end of the spring abutting against the baffle of the mounting shaft and the other end abutting against the bearing on the second synchronous pulley; The locking nut includes an inner locking nut and an outer locking nut, and the locking directions of the inner locking nut and the outer locking nut are opposite when they are threaded into the mounting shaft.

[0009] Optionally, the guiding mechanism further includes a pressing wheel, one end of which is connected to the end of the mounting shaft via a connecting rod. The axis of the pressing wheel is parallel to the axis of the guide wheel. The pressing wheel is used to press the electrode strip into the guide groove of the guide wheel. The width of the guide groove is the same as the width W2 of the electrode strip.

[0010] Optionally, the cylinder clamp includes an upper clamp, a lower clamp, and a cylinder. The upper clamp is mounted on the cylinder by an upper clamp locking screw, and the lower clamp is mounted on the cylinder by a lower clamp locking screw. The cylinder drives the upper clamp and the lower clamp to perform opening and closing movements. The transmission motor drives the cylinder to move back and forth in a direction parallel to the pole tab. The transmission motor is mounted on the machine base.

[0011] Optionally, the cylinder clamp has two grooved bearings, which are installed at intervals on the lower clamp, and the grooves on the grooved bearings are the same as the width W2 of the pole lugs.

[0012] Optionally, the edge of the first surface of the first base is provided with a step, and the limiting baffle is installed on the first surface and spaced apart from the step, thereby forming the limiting groove at the interval between the baffle and the step. The limiting baffle has a through-hole and a threaded hole. The first surface has a threaded hole. The limiting baffle is installed on the first surface by bolts, the through-hole and the threaded hole. The position of the limiting baffle is adjusted by adjusting the position of the bolts in the through-hole. A central groove is provided in the middle of the second surface of the first base, which divides the second surface into two parts arranged on the left and right, one of which is adjustablely mounted on the second base by bolts.

[0013] Optionally, the second base includes a first plate and a second plate. The first plate is vertically mounted on the second plate. The first plate has a mounting groove for mounting the first base. A through-hole is formed in the mounting groove. A threaded hole is formed on the second surface of the first base. The first base is mounted in the mounting groove by bolts, the threaded hole on the second surface and the through-hole. The position of the first base is adjusted by adjusting the position of the bolts in the through-hole. The second plate also has a mounting through-hole. The second base is mounted on the machine base by the mounting through-hole and bolts.

[0014] Optionally, the second plate of the second base is provided with an anti-tilting mechanism, the anti-tilting mechanism is provided with a U-shaped groove, the pole tab passes through the U-shaped groove and is located in the limiting groove, the width of the limiting groove is the same as the width W1 of the pole tab.

[0015] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: This utility model provides a lithium battery tab straightening device, which includes a guiding mechanism, a clamping device, and a straightening device. The guiding mechanism has a guide groove to position the tabs and prevent them from shifting. The clamping device has a grooved bearing to position the tabs and prevent them from shifting. The straightening device has a limiting groove to prevent them from shifting, thus ensuring that the tabs remain straight during movement and achieving linear transmission. A rotating guide wheel prevents the tabs from slipping out of the guide groove during transport. The width of the limiting groove is adjustable to accommodate tabs of different specifications.

[0016] 2. The lithium battery tab alignment device provided by this utility model is equipped with a pressure wheel on the guide mechanism. The pressure wheel presses the tab into the guide groove to achieve the positioning of the tab. The alignment device is equipped with an anti-tilting mechanism. The tab strip passes through the U-shaped groove on the anti-tilting mechanism to prevent the tab strip from tilting and to allow the tab strip to smoothly enter the limiting groove. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the usage state of the lithium battery electrode tab correction device in this utility model embodiment; Figure 2 This is a schematic diagram of the guide wheel mechanism in an embodiment of this utility model; Figure 3 This is a schematic diagram of the guide mechanism in use in an embodiment of this utility model; Figure 4 This is a top view of the clamping device in an embodiment of the present invention; Figure 5 This is a cross-sectional view of the cylinder clamp in an embodiment of the present invention; Figure 6 This is a schematic diagram of the corrective device in an embodiment of this utility model; Figure 7 This is a schematic diagram of the corrective device in use in an embodiment of this utility model; Figure 8 This is a side view of the corrective device in an embodiment of this utility model; Figure 9 This is a schematic diagram of the disassembled structure of the correction device in an embodiment of this utility model.

[0018] Explanation of reference numerals in the attached figures: Guide mechanism; 101. Drive motor; 102. First synchronous pulley; 103. Second synchronous pulley; 104. Synchronous belt; 105. Spring; 106. Mounting shaft; 107. Inner locking nut; 108. Outer locking nut; 109. Pressure wheel; 110. Guide wheel; 111. Guide groove; 112. Connecting rod; 2. Clamping device; 201. Upper clamp; 202. Lower clamp; 203. Upper clamp locking screw; 204. Lower clamp locking screw; 205. First groove bearing; 206. Second groove bearing; 207. Cylinder; 208. Conveyor motor; 3. Alignment device: 301. First base; 302. Limiting groove; 303. Limiting baffle; 304. Limiting baffle bolt; 305. Long hole one; 306. Ladder platform; 307. Second base; 308. First plate; 309. Second plate; 310. Mounting groove; 311. Long hole two; 312. Anti-tilting mechanism; 313. U-shaped groove; 314. Mounting long hole; 4. Ear strips. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use.

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] Example 1

[0022] This embodiment provides a lithium battery tab straightening device, including a guiding mechanism 1, a clamping device 2, and a straightening device 3. The guiding mechanism 1, clamping device 2, and straightening device 3 are all fixedly mounted on a machine base. The clamping device 2 is installed between the guiding mechanism 1 and the straightening device 3. The tab strip 4 passes sequentially through the guiding mechanism 1, clamping device 2, and straightening device 3 before entering the welding device for welding. The clamping device 2 clamps the tab strip 4 and then conveys it forward. The guiding mechanism 1 and the straightening device 3 ensure that the tab strip 4 remains straight during conveying.

[0023] like Figure 2 As shown, the guiding mechanism 1 includes a guide wheel 110 and a driving device for driving the guide wheel 110 to rotate. The guide wheel 110 is provided with a guide groove 111, which is arranged along the circumferential direction of the guide wheel 110 on the outer side wall of the guide wheel 110. Through the rotating guide wheel 110, when the pole tab 4 is conveyed, the pole tab 4 is always located in the guide groove 111, thereby realizing the guidance and positioning of the pole tab 4 during the conveying.

[0024] like Figure 4As shown, the clamping device 2 includes a cylinder clamp and a conveying motor 208. The cylinder clamp has at least one grooved bearing. The cylinder clamp clamps the pole lug 4, and then the conveying motor 208 drives the cylinder clamp to move parallel to the pole lug 4 to realize the conveying of the pole lug 4. The grooved bearing has a groove for positioning the pole lug 4. After the cylinder clamp clamps the pole lug 4, the pole lug 4 is located in the groove of the grooved bearing, which prevents the pole lug 4 from shifting during conveying.

[0025] like Figure 6 As shown, the alignment device 3 includes a first base 301 and a second base 307. The first base 301 is adjustablely mounted on the second base 307. Elongated holes and bolt holes are respectively formed on the first base 301 and the second base 307. The first base 301 and the second base 307 are then installed using bolts. The position of the first base 301 is adjusted by adjusting the position of the bolt within the elongated hole. A limiting baffle 303 is also adjustablely mounted on the first base 301. Elongated holes and bolt holes are respectively formed on the first base 301 and the limiting baffle 303. The first base 301 and the limiting baffle 303 are then installed using bolts. The position of the limiting baffle 303 is adjusted by adjusting the position of the bolt within the elongated hole. The limiting baffle 303 and the edge of the first base 301 form a limiting groove 302, which is used to position the electrode tab 4. By adjusting the position of the limiting baffle 303, the width of the limiting groove 302 formed between the limiting baffle 303 and the first base 301 can be adjusted, thereby adapting to different specifications of the pole tabs 4.

[0026] By positioning the clamping device 2 between the guiding mechanism 1 and the straightening device 3, the electrode tabs 4 before and after the clamping device 2 are positioned and guided, ensuring that the electrode tabs 4 located on the guiding mechanism 1, clamping device 2, and straightening device 3 are in a straight line, preventing deviation and thus avoiding changes in the welding point when the electrode tabs 4 enter the welding device. In use, when the clamping device 2 clamps the electrode tabs 4 and transmits them via the conveying motor 208, the drive device drives the guide wheel 110 to rotate, guiding the moving electrode tabs 4. The electrode tabs 4 located on the guide wheel 110 are always within the guide groove 111, ensuring that the electrode tabs 4 do not deviate. The electrode tabs 4 located on the clamping device 2 are located within the groove of the grooved bearing, ensuring that the electrode tabs 4 do not deviate. The electrode tabs 4 located on the straightening device 3 are located within the limiting groove 302, ensuring that the electrode tabs 4 are always in a straight line and do not deviate.

[0027] Example 2

[0028] This embodiment provides a lithium battery tab alignment device based on Embodiment 1.

[0029] like Figure 1 , Figure 3As shown, the electrode strip 4 used in this embodiment has two widths, W1 and W2, where W1 is greater than W2. The width of the guide groove 111 is the same as W2, the groove width on the groove bearing is the same as W2, and the width of the limiting groove 302 is the same as W1. Different specifications of electrode strips 4 have different widths W1, while W2 is the same for all. Therefore, the limiting groove 302 positions W1. By adjusting the limiting baffle 303, the width of the limiting groove 302 is adjusted, allowing the device provided in this embodiment to be suitable for electrode strips 4 of different specifications. In this embodiment, the electrode strip 4 is conveyed to the right.

[0030] like Figure 2 , Figure 3 As shown, the driving device includes a drive motor 101, a first synchronous pulley 102, and a second synchronous pulley 103. The first synchronous pulley 102 is connected to the output shaft of the drive motor 101. The second synchronous pulley 103 and the first synchronous pulley 102 are connected by a synchronous belt 104. The first synchronous pulley 102 is driven to rotate by the drive motor 101, and then drives the second synchronous pulley 103 to rotate via the synchronous belt 104. The side of the second synchronous pulley 103 is connected to a guide wheel 110, realizing the synchronous rotation of the guide wheel 110 and the second synchronous pulley 103. Both the second synchronous pulley 103 and the guide wheel 110 are mounted on a mounting shaft 106 by bearings. Both ends of the mounting shaft 106 are fixedly mounted on the machine base. A spring 105 is also provided on the end of the mounting shaft 106 located at the second synchronous pulley 103. One end is equipped with a locking nut. One end of the spring 105 abuts against the baffle on the mounting shaft 106, and the other end abuts against the bearing on the second synchronous pulley 103. It is in a compressed loading state. The locking nut is threadedly connected to the mounting shaft 106. By adjusting the position of the locking nut on the mounting shaft 106, the vertical position of the guide wheel 110 is adjusted. During the adjustment process, the locking nut rotates in the vertical direction, and the compressed spring 105 squeezes the second synchronous pulley 103 and the guide wheel 110 to move, or the nut squeezes the second synchronous pulley 103 and the guide wheel 110 to move. The second synchronous pulley 103 follows the movement of the guide wheel 110. However, the position of the guide wheel 110 is adjusted to a small position. The second synchronous pulley 103 is connected to the first synchronous pulley 102 by a synchronous belt 104. The slight deviation of the synchronous belt 104 does not affect the power transmission. The locking nut includes an inner locking nut 107 and an outer locking nut 108. The inner locking nut 107 and the outer locking nut 108 are locked in opposite directions after being threaded onto the mounting shaft 106, so as to achieve interlocking of the two nuts and prevent the nuts from loosening.

[0031] The guide mechanism 1 also includes a pressure roller 109. One end of the pressure roller 109 is connected to the mounting shaft 106 via a connecting rod 112. The central axis of the pressure roller 109 is parallel to the central axis of the mounting shaft 106, so that the pressure roller 109 is located directly above the guide roller 110. Through the pressure roller 109, the pole tab 4 entering the guide roller 110 is pressed into the guide groove 111, thereby achieving the positioning of the pole tab 4. Figure 3 As shown, the pole tab 4 is conveyed to the left, and the guide wheel 110 rotates clockwise via the second synchronous belt 104. The pole tab 4 enters the gap between the pressure wheel 109 and the guide wheel 110 from the top of the guide wheel 110. The pressure wheel 109 presses the pole tab 4 into the guide groove 111, and it rotates clockwise with the guide wheel 110. After rotating to the bottom of the guide wheel 110, it comes out from the guide groove 111.

[0032] like Figure 4 , Figure 5 As shown, the cylinder clamp includes an upper clamp 201, a lower clamp 202, and a cylinder 207. The upper clamp 201 is mounted on the cylinder 207 via an upper clamp locking screw 203, and the lower clamp 202 is mounted on the cylinder 207 via a lower clamp locking screw 204. The cylinder clamp is a commonly used mechanical device in the prior art, and in this embodiment, it can rotate, such as a cylinder clamp with model number MHZ2-10D1. The cylinder 207 is mounted on a drive motor, which drives the cylinder 207 to move left and right. The mounting structure of the cylinder 207 can be: the cylinder 207 is mounted on a lead screw, which is driven by a drive motor 101 to achieve the left and right movement of the cylinder 207. Alternatively, the cylinder 207 is mounted on a slider, and the drive motor 101 drives the slider to move on a guide rail to achieve the left and right rotation of the cylinder 207. The mounting structure of the cylinder 207 can be selected according to requirements. Limit blocks and limit switches can also be arranged on the mounting structure to prevent the cylinder 207 from detaching from the mounting mechanism. The transmission motor 208 drives the cylinder 207 to move left and right. The cylinder 207 drives the upper clamp 201 and the lower clamp 202 to open and close. When the pole tab 4 is being transmitted, the cylinder clamp clamps the pole tab 4. Then the transmission motor 208 drives the cylinder 207 to move to the left. Then the cylinder clamp is released. The drive motor 101 drives the cylinder clamp to return to the right. The above steps are repeated to realize the transmission of the pole tab 4 to the left.

[0033] In this embodiment, the lower clamp 202 of the cylinder clamp is provided with two groove bearings, namely a first groove bearing 205 and a second groove bearing 206. The first groove bearing 205 and the second groove bearing 206 are spaced apart on the lower clamp 202 and are located at the left and right ends of the lower clamp 202, respectively. The groove bearings are provided with grooves, the width of which is the same as the width W2 of the pole lug 4. After the cylinder clamps the pole lug 4, the pole lug 4 is located in the groove. When the transmission motor drives the cylinder clamp to move, the pole lug 4 is limited to the groove to prevent the pole lug 4 from shifting during the transmission process.

[0034] like Figure 6 , Figure 7 , Figure 8 , Figure 9 As shown, a stepped platform 306 is provided on the upper surface edge of the first base 301 of the correction device 3, and a limiting baffle 303 is installed on the upper surface. The limiting baffle 303 and the stepped platform 306 are spaced apart, so a limiting groove 302 is formed between the limiting baffle 303 and the stepped platform 306. The width of the limiting groove 302 is the same as the width W1 of the pole lug 4. The limiting baffle 303 is adjustablely installed on the upper surface of the first base 301. The adjustable structure is specifically: two through-holes 305 are opened on the limiting baffle 303. Two elongated holes 305 are spaced apart. A threaded hole aligned with the two elongated holes 305 is formed on the upper surface of the first base 301. A limiting baffle bolt 304 passes through the elongated hole 305 and engages with the threaded hole on the upper surface. When adjusting the position of the limiting baffle 303, the bolt is loosened, and then the limiting baffle 303 is moved so that the limiting groove 302 formed by the limiting baffle 303 and the ladder 306 is the same width W1 on the pole lug 4. The bolt is then tightened to fix the position of the limiting baffle 303. A central groove is formed in the middle of the lower surface of the first base 301. The central groove divides the lower surface into left and right parts. The right part is adjustablely mounted on the second base 307. The adjustable structure is as follows: a through-hole 311 is formed on the second base 307. A threaded hole aligned with the second elongated hole 311 is provided on the lower surface of the first base 301. A bolt is then inserted through the second elongated hole 311 and engages with the threaded hole on the lower surface. When adjusting the first base 301, the bolt is loosened, and the first base 301 and the bolt move together, with the bolt moving within the second elongated hole 311. The first base 301 moves on the second base 307. After determining the position, the bolt is tightened to fix the position of the first base 301.

[0035] The second base 307 includes a first plate 308 and a second plate 309. The first plate 308 is perpendicular to the second plate 309. The first plate 308 has a mounting groove 310, and an elongated hole 311 is located within the mounting groove 310. The first base 301 is installed within the mounting groove 310. The second plate 309 has a mounting elongated hole 314. The second plate 309 is mounted on the machine base via the mounting elongated hole 314 and bolts. The vertical position of the second base 307 can be adjusted via the mounting elongated hole 314 and bolts to accommodate workbenches of different heights. An anti-tilting mechanism 312 is also provided on the second plate 309. The anti-tilting mechanism 312 has a U-shaped groove 313 and is installed on the right side of the first base 301. The electrode tab 4 passes through the U-shaped groove 313 from the side and is located within a limiting groove 302 on the first base 301. The electrode tab 4 passes through the U-shaped groove 313 to prevent it from tilting. After passing through the U-shaped groove, the electrode tab enters the limiting groove.

[0036] In this embodiment, the clamping device 2 and the straightening device 3 are made of materials with rigid structures that are not easily deformed, such as stainless steel and aluminum alloy. The guide wheel 110 is made of non-metallic material. The guide mechanism 1 is mounted on the machine base via the mounting shaft 106. The conveying motor 208 of the clamping device 2 is mounted in a fixed position on the machine base. The second plate 309 of the clamping device 2 is mounted in a fixed position on the machine base. In use, the clamping device 2 is positioned between the straightening device 3 and the guide mechanism 1.

[0037] In use, the tab 4 enters from the top of the guide wheel 110, the cylinder clamps the tab 4, and the conveyor motor 208 and drive motor 101 are turned on. The conveyor motor 208 drives the cylinder clamp to move to the left, while the drive motor 101 drives the guide wheel 110 to rotate clockwise. When the tab 4 moves to the left, the tab 4 at the top of the guide wheel 110 is pressed into the guide groove 111 by the clamping wheel 109, and the tab 4 at the bottom of the guide wheel 110 comes out of the guide groove 111 and moves to the left. The left tab 4 enters the U-shaped groove 313, and after passing through the U-shaped groove 313, it enters the limiting groove 302. The leftmost tab 4 comes out of the limiting groove 302 and enters the welding device for welding. When the groove bearing and the tab on the limiting groove 302 are misaligned, the inner locking nut 107 and the outer locking nut 108 are adjusted to adjust the position of the guide wheel 110 so that the tab 4 is conveyed in a straight line.

[0038] The lithium battery tab alignment device provided in this embodiment positions the tab strip 4 through the guide groove 111 on the guide wheel 110, the groove on the groove bearing, and the limiting groove 302 on the alignment device 3. This ensures that the tab strip 4 is always conveyed in a straight line during transport, preventing it from shifting and affecting the welding point entering the welding device, thus ensuring the perpendicularity of the tab during welding. The rotating guide wheel 110 prevents the tab strip 4 from slipping out of the guide groove 111, and the groove on the groove bearing prevents the cylinder clamp from shifting during movement. The position of the guide wheel 110 is adjusted by the inner locking nut 107 and the outer locking nut 108 to align the guide groove 111 with the tab strip 4, achieving rapid correction and ensuring processing efficiency.

[0039] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A lithium battery tab alignment device, characterized in that, include: The guiding mechanism includes a guide wheel and a drive device for driving the guide wheel to rotate. The guide wheel is provided with a guide groove, and a portion of the electrode strip is disposed in the guide groove. The guide groove is used to position the electrode strip and to guide it during the transmission of the electrode strip. The clamping device includes a cylinder clamp and a transmission motor. The cylinder clamp has at least one groove bearing, and the groove bearing has a groove for positioning the pole tab. The cylinder clamp is used to clamp the pole tab, and the transmission motor is used to drive the cylinder clamp to move in a direction parallel to the pole tab. The alignment device includes a first base and a second base. The first base is adjustablely mounted on the second base, and the adjustment direction is perpendicular to the pole tab. A limiting baffle is installed on the first base, and the limiting baffle forms a limiting groove with the first base. A portion of the pole tab is located in the limiting groove. The limiting baffle is adjustablely mounted on the first base, and the adjustment direction is perpendicular to the pole tab. Adjusting the position of the limiting baffle changes the width of the limiting groove. A machine base for mounting the guiding mechanism, the clamping device, and the alignment device; The clamping device is located between the guiding mechanism and the straightening device, and the electrode strip is conveyed from the guiding mechanism to the straightening device.

2. The lithium battery tab alignment device according to claim 1, characterized in that, The driving device includes a first synchronous pulley, a second synchronous pulley, and a drive motor. The first synchronous pulley and the second synchronous pulley are connected by a synchronous belt. The first synchronous pulley is connected to the output shaft of the drive motor, driving the first synchronous pulley to rotate and driving the second synchronous pulley to rotate via the synchronous belt. The second synchronous pulley is installed with the guide wheel, and the second synchronous pulley drives the guide wheel to rotate.

3. The lithium battery tab alignment device according to claim 2, characterized in that, Both the second synchronous pulley and the guide pulley are mounted on the mounting shaft via bearings. The two ends of the mounting shaft are fixedly mounted on the machine base. A spring is provided on the end of the mounting shaft where the second synchronous pulley is located, and a locking nut is provided on the end where the guide pulley is located. The guide pulley is adjusted to its position on the mounting shaft by the locking nut. The mounting shaft is arranged perpendicular to the pole lug.

4. The lithium battery tab alignment device according to claim 3, characterized in that, The spring is in a compressed state, with one end abutting against the baffle of the mounting shaft and the other end abutting against the bearing on the second synchronous pulley; The locking nut includes an inner locking nut and an outer locking nut, and the locking directions of the inner locking nut and the outer locking nut are opposite when they are threaded into the mounting shaft.

5. The lithium battery tab alignment device according to claim 3, characterized in that, The guiding mechanism further includes a pressing wheel, one end of which is connected to the end of the mounting shaft via a connecting rod. The axis of the pressing wheel is parallel to the axis of the guide wheel. The pressing wheel is used to press the electrode strip into the guide groove of the guide wheel. The width of the guide groove is the same as the width W2 of the electrode strip.

6. The lithium battery tab alignment device according to claim 1, characterized in that, The cylinder clamp includes an upper clamp, a lower clamp, and a cylinder. The upper clamp is mounted on the cylinder by an upper clamp locking screw, and the lower clamp is mounted on the cylinder by a lower clamp locking screw. The cylinder drives the upper clamp and the lower clamp to perform opening and closing movements. The transmission motor drives the cylinder to move back and forth in a direction parallel to the pole tabs. The transmission motor is mounted on the machine base.

7. The lithium battery tab alignment device according to claim 6, characterized in that, The cylinder clamp has two grooved bearings, which are installed at intervals on the lower clamp. The grooves on the grooved bearings are the same as the width W2 of the pole lugs.

8. The lithium battery tab alignment device according to claim 1, characterized in that, The first surface of the first base is provided with a step platform at its edge. The limiting baffle is installed on the first surface and is spaced apart from the step platform, thereby forming the limiting groove at the interval between the baffle and the step platform. The limiting baffle has a through-hole and a threaded hole. The first surface has a threaded hole. The limiting baffle is installed on the first surface by bolts, the through-hole and the threaded hole. The position of the limiting baffle is adjusted by adjusting the position of the bolts in the through-hole. A central groove is provided in the middle of the second surface of the first base, which divides the second surface into two parts arranged on the left and right, one of which is adjustablely mounted on the second base by bolts.

9. The lithium battery tab alignment device according to claim 8, characterized in that, The second base includes a first plate and a second plate. The first plate is vertically mounted on the second plate. The first plate has a mounting groove for mounting the first base. A through-hole is formed in the mounting groove. A threaded hole is formed on the second surface of the first base. The first base is mounted in the mounting groove by bolts, the threaded hole on the second surface and the through-hole. The position of the first base is adjusted by adjusting the position of the bolts in the through-hole. The second plate also has a mounting through-hole. The second base is mounted on the machine platform by the mounting through-hole and bolts.

10. The lithium battery tab alignment device according to claim 9, characterized in that, The second plate of the second base is provided with an anti-tilting mechanism. The anti-tilting mechanism is provided with a U-shaped groove. After the pole tab passes through the U-shaped groove, it is located in the limiting groove. The width of the limiting groove is the same as the width W1 of the pole tab.

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