Precise pole piece and pole lug thickness roll flattening device

Abstract

The invention discloses a pole piece and pole lug thickness accurate roll flattening device which comprises a mounting rack, a roller, a mounting frame, a pressing wheel mechanism, a pressing wheel lifting driving mechanism and a pressing wheel horizontal adjusting mechanism. The roller is rotationally arranged on the mounting frame; the mounting frame is slidably arranged on the mounting rack; the pinch roller mechanism and the pinch roller lifting driving mechanism are mounted on the mounting frame; the pressing wheel mechanism is used for being matched with a roller to roll a pole lug, the pressing wheel horizontal adjusting mechanism is used for adjusting the position of the pressing wheel mechanism in the axial direction of the roller, and the pressing wheel lifting driving mechanism is used for adjusting the distance between the pressing wheel mechanism and the roller in the radial direction of the roller; a local rolling mode is adopted to roll the tabs, rolling is carried out only aiming at required positions, and the difficulty in controlling the thickness precision of the rolling positions is low.

Description

Technical Field

[0001] The invention relates to the technical field of battery manufacturing devices, and in particular to a device for accurately rolling the thickness of a pole piece and a pole ear. Background Art

[0002] As lithium battery production processes continue to be updated and iterated, there is now a need for a rolling device that can accurately adjust the position and thickness of the pole piece and ear after welding.

[0003] Most existing rolling devices adopt an overall rolling method, using a large steel roller to roll the entire width of the pole piece. This makes it impossible to accurately control the local thickness and there is a risk of damaging the pole piece surface. At the same time, the overall rolling cannot accurately control the local pressure and there is a risk of rolling cracking. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a device for accurately rolling the thickness of a pole piece and a pole lug, which can locally control the rolling pressure.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A device for accurately rolling the thickness of a pole piece and a pole lug, comprising a mounting frame, a roller, a mounting frame, a pressing wheel mechanism, a pressing wheel lifting and lowering driving mechanism, and a pressing wheel horizontal adjustment mechanism;

[0007] The roller is rotatably mounted on the mounting frame;

[0008] The installation frame is slidably arranged on the installation frame;

[0009] The pressing wheel mechanism and the pressing wheel lifting drive mechanism are installed on the installation frame;

[0010] Among them, the pressing wheel mechanism is used to cooperate with the roller to press the pole ear, the pressing wheel horizontal adjustment mechanism is used to adjust the position of the pressing wheel mechanism along the axial direction of the roller, and the pressing wheel lifting drive mechanism is used to adjust the distance between the pressing wheel mechanism and the roller along the radial direction of the roller.

[0011] The device for accurately rolling the thickness of the pole piece and the pole lug as described above, wherein the pressure wheel lifting and driving mechanism comprises an adjustment component and a first lifting group, and the first lifting group comprises a mounting bracket and a lifting driving member;

[0012] The fixed end of the lifting drive member is installed on the installation frame, and the output end of the lifting drive member is transmission-connected with the pressing wheel mechanism.

[0013] The device for accurately rolling the thickness of the pole piece and the pole lug as described above, wherein the adjustment assembly comprises a bracket, a first fixed block, a second fixed block, a fine-tuning screw, a fine-tuning screw nut, an upper wedge and a lower wedge;

[0014] The bracket is fixed on the mounting frame and is located in the space between the mounting bracket and the pressing wheel mechanism;

[0015] The first fixing block and the second fixing block are fixedly mounted on the bracket;

[0016] The fine-tuning screw is rotatably connected to the first fixed block and the second fixed block, the fine-tuning screw nut is threadedly connected to the fine-tuning screw, the lower wedge is fixedly connected to the fine-tuning screw nut, the bottom of the lower wedge is slidably against the bracket, and the top of the lower wedge is inclined;

[0017] The upper wedge block is fixed on the mounting bracket, and the upper wedge block is arranged on a side of the mounting bracket facing the lower wedge block, and the bottom of the upper wedge block is arranged obliquely;

[0018] The upper wedge block and the lower wedge block have the same slope, wherein the slope of the upper wedge block is 1:10 to 1:40.

[0019] The above-mentioned precise rolling flat device for the thickness of the pole piece and the pole lug, wherein the upper wedge block is provided with an upper rolling member on one side facing the lower wedge block or on one side facing the upper wedge block, and the upper rolling member is used to reduce the friction force when the lower wedge block rolls relative to the upper wedge block;

[0020] A lower rolling member is provided on one side of the lower wedge block facing the bracket or on one side of the bracket facing the lower wedge block, and the lower rolling member is used to reduce the friction force when the lower wedge block rolls relative to the bracket.

[0021] The device for accurately rolling the thickness of the pole piece and the pole lug as described above, wherein the adjustment assembly further comprises a socket seat, a pin seat and a fixed mounting seat, wherein the fixed mounting seat is fixedly connected to one end of the bracket, and the fixed mounting seat is detachably connected to the mounting frame;

[0022] The socket seat is provided with a socket, the hole axis of the socket is parallel to the rotation axis of the roller, the pin seat is provided with a pin matching the socket, and the pin seat or the socket seat is fixedly connected to the other end of the bracket; when the pin seat is fixedly connected to the other end of the bracket, the socket seat is fixedly connected to the installation frame; when the socket seat is fixedly connected to the other end of the bracket, the pin seat is fixedly connected to the installation frame.

[0023] The above-mentioned precise rolling flat device for the thickness of the pole piece and the pole lug, wherein the first lifting group further comprises a force sensor and a control valve, wherein the force sensor is arranged between the mounting bracket and the lifting drive, and the control valve is in communication with the force sensor, and the control valve is in communication with the lifting drive;

[0024] The force sensor is used to sense the pressure applied by the pressure wheel mechanism toward the roller, and the control valve is used to receive the signal sent by the force sensor and send the signal to the lifting drive component to control the operation of the lifting drive component.

[0025] The device for accurately rolling the thickness of the pole piece and the pole lug as described above, wherein the pressing wheel mechanism comprises a pressing wheel, a rotating shaft and a fixing block;

[0026] The rotating shaft passes through the rotation center of the pressing wheel and is fixedly connected to the pressing wheel;

[0027] The mounting bracket is provided with mounting grooves on both sides of the pressure wheel, the fixing block is detachably connected to the mounting bracket, and both ends of the rotating shaft are rotatably arranged in the space enclosed by the mounting grooves and the fixing block.

[0028] The device for accurately rolling the thickness of the pole piece and the pole lug as described above, wherein the pressure wheel horizontal adjustment mechanism comprises a transition frame, a slide rail, a slider, a horizontal adjustment screw rod, a horizontal adjustment screw rod nut, a locking piece mounting block and a screw rod locking piece;

[0029] The slide rail is fixedly arranged on the mounting frame, and the slider is slidably arranged on the slide rail;

[0030] The mounting frame is fixedly mounted on the sliding block;

[0031] The transition frame is fixedly connected to the mounting frame;

[0032] The horizontal adjustment screw rod is rotatably arranged on the transition frame, the horizontal adjustment screw rod nut is threadedly connected with the horizontal adjustment screw rod, and the horizontal adjustment screw rod nut is fixedly connected with the installation frame;

[0033] The locking member mounting block is fixedly connected to the transition frame and is rotationally connected to the horizontal adjustment screw rod. The screw rod locking member is arranged on the locking member mounting block, and the screw rod locking member is used to limit the rotation of the horizontal adjustment screw rod.

[0034] The above-mentioned precise rolling flat device for the thickness of the pole piece and the pole ear further comprises a base and a dust removal mechanism;

[0035] The base is arranged below the roller, and one side of the base is fixedly connected to the mounting frame;

[0036] A chamber is provided in the base, and the chamber is used to contain dust generated by rolling the tabs. The dust removal mechanism is connected to the chamber to remove the dust.

[0037] The device for accurately rolling down the thickness of the pole piece and the pole tab as described above further comprises a roller drive assembly, wherein the fixed end of the roller drive assembly is mounted on the mounting frame, and the output end of the roller drive assembly is connected to the roller transmission.

[0038] The beneficial effects of the present invention are:

[0039] The roller is rotatably installed on the mounting frame, and the mounting frame on which the pressing wheel mechanism and the pressing wheel lifting drive mechanism are installed is slidably arranged on the mounting frame. Before rolling the pole ear flat, the pole piece is led between the pressing wheel mechanism and the roller, and the pressing wheel horizontal adjustment mechanism is used to adjust the pressing wheel mechanism to just above the pole piece ear. The pressing wheel lifting drive mechanism is used to adjust the distance between the pressing wheel mechanism and the roller, so as to control the thickness of the rolled pole ear. It can be seen that the present invention adopts local rolling to roll the pole ear, and only rolls the required position to avoid scratches on the pole piece surface caused by overall rolling. The thickness accuracy at the rolling point is less difficult to control, and the thickness accuracy at the rolling point can be controlled within 0.01mm. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0041] Figure 1 It is a schematic diagram of the three-dimensional structure of a device for accurately rolling the thickness of a pole piece and a pole ear;

[0042] Figure 2 It is one of the three-dimensional structural schematic diagrams of a device for accurately rolling the thickness of a pole piece and a pole ear with part of the mounting frame omitted;

[0043] Figure 3 This is the second three-dimensional structural schematic diagram of the pole piece and pole ear thickness precision rolling flat device with part of the mounting frame omitted;

[0044] Figure 4 yes Figure 3 A magnified view of the structure of the middle A part;

[0045] Figure 5 It is a cross-sectional view of a device for accurately rolling the thickness of a pole piece and a pole ear;

[0046] Figure 6 yes Figure 5 A magnified view of the structure of the middle B section;

[0047] Figure 7 is a schematic diagram of the structure of the adjustment assembly with the upper wedge omitted;

[0048] Figure 8 This is an exploded view of the first lifting group;

[0049] The reference numerals are as follows:

[0050] 1-Mounting frame;

[0051] 2-Roller;

[0052] 3-installation frame; 31-vertical slide rail; 32-vertical slide block;

[0053] 4-pressing wheel mechanism; 41-pressing wheel; 42-rotating shaft; 43-fixing block; 44-installing slot;

[0054] 5-Pressing wheel lifting drive mechanism;

[0055] 51-adjustment assembly; 511-bracket; 512-first fixed block; 513-second fixed block; 514-fine-tuning screw; 515-fine-tuning screw nut; 516-upper wedge; 517-lower wedge; 518-upper rolling element; 504-fine-tuning locking element mounting seat; 505-fine-tuning locking element; 506-fine-tuning rotating hand wheel; 507-rotation counter;

[0056] 501-jack seat; 5011-jack; 502-pin seat; 5021-pin; 503-fixed mounting seat;

[0057] 52-first lifting group; 521-mounting bracket; 5211-first mounting plate; 5212-second mounting plate; 5213-third mounting plate; 522-lifting drive member; 523-force sensor;

[0058] 6-pressure wheel horizontal adjustment mechanism; 61-transition frame; 62-slide rail; 63-sliding block; 64-horizontal adjustment screw rod; 65-horizontal adjustment screw rod nut; 66-locking piece mounting block; 67-screw rod locking piece; 68-dust cover;

[0059] 7-base; 71-chamber;

[0060] 81-dust suction pipe; 82-isolation net;

[0061] 9-roller drive assembly; 91-drive motor; 92-planetary reducer; 93-coupling. DETAILED DESCRIPTION

[0062] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the present invention. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the invention can be combined interchangeably without conflicting with each other.

[0063] Reference Figure 1-Figure 3 , Figure 5, a device for accurately rolling the thickness of a pole piece and a pole ear, comprising a mounting frame 1, a roller 2, a mounting frame 3, a pressing wheel mechanism 4, a pressing wheel lifting and lowering driving mechanism 5 and a pressing wheel leveling adjustment mechanism 6;

[0064] The roller 2 is rotatably mounted on the mounting frame 1;

[0065] The installation frame 3 is slidably arranged on the installation frame 1;

[0066] The pressing wheel mechanism 4 and the pressing wheel lifting drive mechanism 5 are installed on the installation frame 3;

[0067] Among them, the pressing wheel mechanism 4 is used to cooperate with the roller 2 to press the pole ear, the pressing wheel horizontal adjustment mechanism 6 is used to adjust the position of the pressing wheel mechanism 4 along the axial direction of the roller 2, and the pressing wheel lifting drive mechanism 5 is used to adjust the distance between the pressing wheel mechanism 4 and the roller 2 along the radial direction of the roller 2.

[0068] The roller 2 is rotatably mounted on the mounting frame 1, and the mounting frame 3 equipped with a pressing wheel mechanism 4 and a pressing wheel lifting drive mechanism 5 is slidably arranged on the mounting frame. Before rolling the pole ear, the pole piece is led between the pressing wheel mechanism 4 and the roller 2, and the pressing wheel horizontal adjustment mechanism 6 is used to adjust the pressing wheel mechanism to just above the pole piece ear. The pressing wheel lifting drive mechanism 5 is used to adjust the distance between the pressing wheel mechanism 4 and the roller 2, so as to control the thickness of the rolled pole ear. It can be seen that the present embodiment adopts a local rolling method to roll the pole ear, and only operates at the pole ear position where rolling is required, so as to avoid scratches on the pole piece surface caused by overall rolling. The thickness accuracy at the rolling point is relatively easy to control, and the thickness accuracy at the rolling point can be controlled within 0.005mm.

[0069] Reference Figure 1 Specifically, a portion of the mounting frame 1 is rotatably connected to the roller 2, and another portion is provided for the mounting frame 3 to be slidably mounted.

[0070] Reference Figure 2 as well as Figure 8 In one embodiment, the pressure wheel lifting drive mechanism 5 includes a first lifting group 52 and an adjustment component 51, and the first lifting group 52 includes a mounting bracket 521 and a lifting drive member 522;

[0071] The fixed end of the lifting drive member 522 is mounted on the mounting frame 3, the output end of the lifting drive member 522 is transmission-connected with the mounting bracket 521, and the pressing wheel mechanism 4 is arranged on the mounting bracket 521. The structure is simple and easy to implement.

[0072] The lifting drive member 522 drives the mounting bracket 521 to rise, thereby driving the pressing wheel mechanism 4 to lift up, so as to facilitate leading the tape to between the roller 2 and the pressing wheel mechanism 4 .

[0073] The lifting drive member 522 can be used to distinguish between the working state and the non-working state. When the device is not working, the lifting drive member 522 is retracted, and the pressing wheel mechanism 4 and the roller 2 are kept at a certain distance, which is convenient for pulling the material belt or other adjustments, and at the same time, it is prevented that the roller 2 and the pressing wheel mechanism 4 wear each other when not working, resulting in a reduction in the service life of the device;

[0074] Reference Figure 3 as well as Figure 8 Specifically, the first lifting group 52 further includes a force sensor 523 and a control valve, the force sensor 523 is arranged between the mounting bracket 521 and the lifting drive 522, the control valve is in communication with the force sensor 523, and the control valve is in communication with the lifting drive 522;

[0075] The force sensor 523 is used to sense the pressure applied by the pressure wheel mechanism 4 toward the roller 2, and the control valve is used to receive the signal sent by the force sensor 523 and send a signal to the lifting drive member 522 to control the operation of the lifting drive member 522, thereby achieving precise control of the rolling pressure and avoiding cracking of the rolling part due to excessive pressure.

[0076] Reference Figure 5 as well as Figure 8 Specifically, the mounting bracket 521 includes a first mounting plate 5211, a second mounting plate 5212, and a third mounting plate 5213. The second mounting plate 5212 and the third mounting plate 5213 are vertically connected to the first mounting plate 5211; the output end of the lifting drive member 522 is transmission-connected to the first mounting plate 5211, and the two ends of the pressing wheel mechanism 4 are rotationally connected to the second mounting plate 5212 and the third mounting plate 5213 respectively.

[0077] Refer to 5. Figure 6 as well as Figure 7 Specifically, the adjustment assembly 51 includes a bracket 511, a first fixing block 512, a second fixing block 513, a fine-tuning screw 514, a fine-tuning screw nut 515, an upper wedge 516 and a lower wedge 517;

[0078] The bracket 511 is fixed on the installation frame 3 and is located in the space between the installation bracket 521 and the pressing wheel mechanism 4;

[0079] The first fixing block 512 and the second fixing block 513 are fixedly mounted on the bracket 511;

[0080] The fine-tuning screw 514 is rotatably connected to the first fixing block 512 and the second fixing block 513, the fine-tuning screw nut 515 is threadedly connected to the fine-tuning screw 514, the lower wedge block 517 is fixedly connected to the fine-tuning screw nut 515, and the bottom of the lower wedge block 517 slides against the bracket 511, and the top of the lower wedge block 517 is inclined;

[0081] The upper wedge block 516 is fixed on the mounting bracket 521, and the upper wedge block 516 is arranged on a side of the mounting bracket 521 facing the lower wedge block 517, and the bottom of the upper wedge block 516 is inclined;

[0082] The upper wedge block 516 and the lower wedge block 517 have the same slope, and the slope of the upper wedge block 516 is 1:10 to 1:40.

[0083] The adjustment component 51 allows for a small adjustment of the height of the pressing wheel mechanism 4, further adjusting the distance between the roller 2 and the pressing wheel mechanism 4, accurately controlling the thickness of the rolled tab, improving the ability to control the rolling accuracy of the tab, and ensuring processing accuracy.

[0084] After the pressure wheel mechanism 4 has been roughly adjusted by the first lifting group 52, the distance between the upper wedge block 516 and the lower wedge block 517 is reduced, and the upper wedge block 516 and the lower wedge block 517 are even fitted together; the working principle of the first lifting group 52 is as follows: the fine-tuning screw rod 514 is rotated, and the fine-tuning screw rod nut 515 moves accordingly. Since the bottom of the lower wedge block 517 slides against the bracket 511, the rotation of the fine-tuning screw rod 514 will drive the fine-tuning screw rod nut 515 to move in a straight line. During the movement of the fine-tuning screw rod nut 515, the lower wedge block 517 lifts the upper wedge block 516. Since the lower wedge block 517 is fixed on the mounting bracket 521, and the mounting bracket 521 is connected to the pressure wheel mechanism 4, the pressure wheel mechanism 4 is indirectly lifted, thereby achieving fine-tuning of the height of the pressure wheel mechanism 4.

[0085] The slope of the upper wedge block 516 and the lower wedge block 517 is 1:10 to 1:40. Taking the slope of the upper wedge block 516 and the lower wedge block 517 as 1:20 as an example, the fine-tuning screw 514 can be rotated to drive the lower wedge block 517 to move a distance of 1 mm, which drives the lower wedge block 517 to lift the upper wedge block 516 by 0.005 mm, that is, drives the pressure wheel mechanism 4 to lift by 0.005 mm.

[0086] When the lower wedge block 517 moves 10 mm-20 mm, the upper wedge block 516 and the pressing wheel mechanism 4 can be lifted by 1 mm, with high adjustment accuracy and easy operation.

[0087] Specifically, the slope of the upper wedge block 516 and the lower wedge block 517 is 1:40, so that when the lower wedge block 517 moves 20 mm, the upper wedge block 516 and the pressure wheel mechanism 4 are lifted by 1 mm.

[0088] It can be understood that the bracket 511 is located in a space enclosed by the first mounting plate 5211 , the second mounting plate 5212 , the third mounting plate 5213 and the pressing wheel mechanism 4 .

[0089] Reference Figure 7 Specifically, the adjustment component 51 also includes a fine-tuning locking member mounting seat 504 and a fine-tuning locking member 505. The fine-tuning locking member mounting seat 504 is fixedly connected to the first fixed block 512, and the fine-tuning locking member mounting seat 504 is rotatably connected to the fine-tuning screw rod 514. The fine-tuning locking member 505 is arranged on the fine-tuning locking member mounting seat 504, and the fine-tuning locking member mounting seat 504 is used to limit the rotation of the fine-tuning screw rod 514.

[0090] Reference Figure 7 Specifically, a fine-tuning rotating hand wheel 506 is fixed to one end of the fine-tuning screw rod 514 , and the fine-tuning rotating hand wheel 506 is used to assist in manually rotating the fine-tuning screw rod 514 .

[0091] Reference Figure 7 Specifically, a rotation counter 507 is connected to one end of the fine-tuning screw 514 and to the side of the fine-tuning locking member mounting seat 504 facing away from the micro-first fixed block 512. The rotation counter 507 is used to count the number of rotations of the screw so that the operator can accurately evaluate the fine adjustment height of the pressure wheel mechanism 4.

[0092] For example, when the rotation counter 507 shows that the fine-tuning screw 514 rotates 0.1 circle, the corresponding pressure wheel mechanism 4 is lifted or lowered by 0.005 mm.

[0093] Reference Figure 5 as well as Figure 7 Specifically, an upper rolling member 518 is provided on one side of the upper wedge block 516 facing the lower wedge block 517 or on one side of the lower wedge block 517 facing the upper wedge block 516, and the upper rolling member 518 is used to reduce the friction force when the lower wedge block 517 rolls relative to the upper wedge block 516;

[0094] A lower rolling member (not shown in the figure) is provided on one side of the lower wedge block 517 facing the bracket 511 or on one side of the bracket 511 facing the lower wedge block 517. The lower rolling member is used to reduce the friction force when the lower wedge block 517 rolls relative to the bracket 511, so as to improve the smoothness of adjustment of the adjustment component 51, reduce the adjustment resistance, and improve the stability of the structure of the adjustment component 51.

[0095] Specifically, the upper rolling member 518 is a plurality of rolling cylinders arranged side by side.

[0096] Reference Figure 5 as well as Figure 7 More specifically, the adjustment assembly 51 further includes a jack seat 501, a latch seat 502 and a fixed mounting seat 503, wherein the fixed mounting seat 503 is fixedly connected to one end of the bracket 511, and the fixed mounting seat 503 is detachably connected to the mounting frame 3;

[0097] The socket seat 501 is provided with a socket 5011, and the hole axis of the socket 5011 is parallel to the rotation axis of the roller 2. The pin seat 502 is provided with a pin 5021 matching the socket 5011. The pin seat 502 or the socket seat 501 is fixedly connected to the other end of the bracket 511; when the pin seat 502 is fixedly connected to the other end of the bracket 511, the socket seat 501 is fixedly connected to the installation frame 3; when the socket seat 501 is fixedly connected to the other end of the bracket 511, the pin seat 502 is fixedly connected to the installation frame 3.

[0098] Taking the case where the latch seat 502 is fixedly connected to the other end of the bracket 511 as an example, when the adjustment assembly 51 is to be disassembled from the device, the connection between the fixed mounting seat 503 and the mounting frame 3 is first released, and the bracket 511 is pulled along the axial direction of the jack 5011 to drive the latch seat 502, the first fixing block 512, the second fixing block 513, the fine-tuning screw 514, the fine-tuning screw nut 515, the lower wedge 517, (the fine-tuning locking member mounting seat 504, the fine-tuning locking member 505, the rotation counter 507, the fine-tuning rotating hand wheel 506) to be synchronously withdrawn, so as to facilitate the quick disassembly and maintenance of the device. It can be understood that the installation process is opposite to the above-mentioned disassembly process.

[0099] Specifically, the second mounting plate 5212 and the third mounting plate 5213 are both slidably connected to the mounting frame 3, and the mounting frame 3 is provided with a vertical slide rail 31. The second mounting plate 5212 and the third mounting plate 5213 are fixed with a vertical slider 32 that slides on the vertical slide rail 31. When the lifting drive member 522 drives the mounting bracket 521 to move up and down, the vertical slider 32 slides on the vertical slide rail 31 to ensure that the lifting drive member 522 drives the mounting bracket 521 to slide smoothly and drives the pressure wheel mechanism 4 to rise and fall smoothly.

[0100] Reference Figure 5 as well as Figure 8 Specifically, the pressing wheel mechanism 4 includes a pressing wheel 41, a rotating shaft 42 and a fixing block 43;

[0101] The rotating shaft 42 passes through the rotation center of the pressing wheel 41 and is fixedly connected to the pressing wheel 41;

[0102] The second mounting plate 5212 and the third mounting plate 5213 are both provided with mounting grooves 44 , the fixing block 43 is detachably connected to the mounting bracket 521 , and both ends of the rotating shaft 42 are rotatably disposed in the space enclosed by the mounting grooves 44 and the fixing block 43 .

[0103] It can be understood that when the pressing wheel mechanism 4 is to be installed, the rotating shaft 42 is first placed in the installation groove 44, and then the fixing block 43 is installed, and the fixing block 43 is fixed with screws and other parts, so as to fix the pressing wheel mechanism 4 on the installation bracket 521; the disassembly process is the opposite of this. It can be seen that the pressing wheel mechanism 4 in this embodiment has a simple structure and is easy to disassemble and install.

[0104] Reference Figure 1 , Figure 3 as well as Figure 4 In one embodiment, the pressure wheel horizontal adjustment mechanism 6 includes a transition frame 61, a slide rail 62, a slider 63, a horizontal adjustment screw 64, a horizontal adjustment screw nut 65, a locking member mounting block 66 and a screw locking member 67;

[0105] The slide rail 62 is fixedly mounted on the mounting frame 1, and the slider 63 is slidably mounted on the slide rail 62;

[0106] The mounting frame 3 is fixedly mounted on the slider 63;

[0107] The transition frame 61 is fixedly connected to the mounting frame 1;

[0108] The horizontal adjustment screw rod 64 is rotatably disposed on the transition frame 61, the horizontal adjustment screw rod nut 65 is threadedly connected to the horizontal adjustment screw rod 64, and the horizontal adjustment screw rod nut 65 is fixedly connected to the installation frame 3;

[0109] The locking member mounting block 66 is fixedly connected to the transition frame 61 and is rotatably connected to the horizontal adjustment screw rod 64 . The screw rod locking member 67 is disposed on the locking member mounting block 66 . The screw rod locking member 67 is used to limit the rotation of the horizontal adjustment screw rod 64 .

[0110] The horizontal adjustment screw 64 is rotated, and the horizontal adjustment screw nut 65 converts the rotational motion of the horizontal adjustment screw 64 into linear motion, thereby driving the installation frame 3, the installation pressure wheel mechanism 4, and the pressure wheel lifting drive mechanism 5 to slide on the slide rail 62, and adjusting the position of the pressure wheel mechanism 4 along the axial direction of the roller 2.

[0111] Specifically, the pressure wheel horizontal adjustment mechanism 6 also includes a dust cover 68 , which is fixed on the installation frame 3 to reduce dust accumulation on the slide rail 62 and prevent dust from affecting the movement of the installation frame 3 .

[0112] As an example, the dust cover 68 is a rigid metal cover or an accordion cover.

[0113] Reference Figure 5 , in one embodiment, it also includes a base 7 and a dust removal mechanism;

[0114] The base 7 is disposed below the roller 2, and one side of the base 7 is fixedly connected to the mounting frame 1;

[0115] The base 7 is provided with a chamber 71 for containing dust generated by rolling the tabs. The dust removal mechanism is connected to the chamber 71 for removing the dust and improving the cleanliness of the workshop environment.

[0116] Specifically, the dust removal mechanism includes a dust suction pipe 81, which is connected to an external negative pressure generating device. The negative pressure generating device is activated to absorb dust.

[0117] Specifically, the dust removal mechanism further includes an isolation net 82 , which is disposed at the entrance of the chamber 71 , and is used to prevent the pole ears and pole pieces from being adsorbed into the chamber 71 .

[0118] In one embodiment, a roller drive assembly 9 is further included, the fixed end of the roller drive assembly 9 is mounted on the mounting frame 1, and the output end of the roller drive assembly 9 is drivingly connected to the roller 2. When rolling the tab, the roller drive assembly 9 drives the roller 2 to rotate, thereby driving the tab to move synchronously, providing power for the movement of the tab and the pole piece.

[0119] Specifically, the roller drive assembly 9 includes a drive motor 91, a planetary reducer 92, and a coupling 93. The coupling 93 is connected to one end of the roller 2, the planetary reducer 92 is rotationally connected to the coupling 93, and the coupling 93 is rotationally connected to the planetary reducer 92.

[0120] The above is a specific description of the preferred implementation of the present invention, but the invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A device for accurately rolling the thickness of a pole piece and a pole ear, characterized in that: It comprises a mounting frame (1), a roller (2), a mounting frame (3), a pressing wheel mechanism (4), a pressing wheel lifting and lowering driving mechanism (5) and a pressing wheel horizontal adjustment mechanism (6); The roller (2) is rotatably mounted on the mounting frame (1); The installation frame (3) is slidably mounted on the installation frame (1); The pressing wheel mechanism (4) and the pressing wheel lifting drive mechanism (5) are installed on the installation frame (3); The pressing wheel mechanism (4) is used to cooperate with the roller (2) to press the pole ear, the pressing wheel horizontal adjustment mechanism (6) is used to adjust the position of the pressing wheel mechanism (4) along the axial direction of the roller (2), and the pressing wheel lifting drive mechanism (5) is used to adjust the distance between the pressing wheel mechanism (4) and the roller (2) along the radial direction of the roller (2).

2. The device for accurately rolling the thickness of a pole piece and a pole tab as claimed in claim 1, characterized in that: The pressure wheel lifting drive mechanism (5) comprises a first lifting group (52), and the first lifting group (52) comprises a mounting bracket (521) and a lifting drive member (522); The fixed end of the lifting drive member (522) is mounted on the mounting frame (3), and the output end of the lifting drive member (522) is drivingly connected to the pressing wheel mechanism (4).

3. The device for accurately rolling the thickness of a pole piece and a pole tab as claimed in claim 2, characterized in that: The pressure wheel lifting drive mechanism (5) further comprises an adjusting assembly (51), wherein the adjusting assembly (51) comprises a bracket (511), a first fixing block (512), a second fixing block (513), a fine-tuning screw (514), a fine-tuning screw nut (515), an upper wedge block (516) and a lower wedge block (517); The bracket (511) is fixed on the installation frame (3) and is located in the space between the installation bracket (521) and the pressing wheel mechanism (4); The first fixing block (512) and the second fixing block (513) are fixedly mounted on the bracket (511); The fine-tuning screw (514) is rotatably connected to the first fixed block (512) and the second fixed block (513); the fine-tuning screw nut (515) is threadedly connected to the fine-tuning screw (514); the lower wedge block (517) is fixedly connected to the fine-tuning screw nut (515); the bottom of the lower wedge block (517) is slidably opposed to the bracket (511); and the top of the lower wedge block (517) is inclined; The upper wedge block (516) is fixed on the mounting bracket (521), and the upper wedge block (516) is arranged on a side of the mounting bracket (521) facing the lower wedge block (517), and the bottom of the upper wedge block (516) is arranged obliquely; The upper wedge block (516) and the lower wedge block (517) have the same slope, wherein the slope of the upper wedge block (516) is 1:10 to 1:

40.

4. The device for accurately rolling the thickness of a pole piece and a pole tab as claimed in claim 3, characterized in that: An upper rolling member (518) is provided on one side of the upper wedge block (516) facing the lower wedge block (517) or on one side of the lower wedge block (517) facing the upper wedge block (516), and the upper rolling member (518) is used to reduce the friction force when the lower wedge block (517) rolls relative to the upper wedge block (516); A lower rolling member is provided on one side of the lower wedge block (517) facing the bracket (511) or on one side of the bracket (511) facing the lower wedge block (517), and the lower rolling member is used to reduce the friction force when the lower wedge block (517) rolls relative to the bracket (511).

5. The device for accurately rolling the thickness of a pole piece and a pole tab as claimed in claim 3, characterized in that: The adjustment assembly (51) further comprises a socket seat (501), a latch seat (502) and a fixed mounting seat (503), wherein the fixed mounting seat (503) is fixedly connected to one end of the bracket (511), and the fixed mounting seat (503) is detachably connected to the mounting frame (3); The socket seat (501) is provided with a socket (5011), the hole axis of the socket (5011) is parallel to the rotation axis of the roller (2), the pin seat (502) is provided with a pin (5021) matching the socket (5011), and the pin seat (502) or the socket seat (501) is fixedly connected to the other end of the bracket (511); when the pin seat (502) is fixedly connected to the other end of the bracket (511), the socket seat (501) is fixedly connected to the installation frame (3); when the socket seat (501) is fixedly connected to the other end of the bracket (511), the pin seat (502) is fixedly connected to the installation frame (3).

6. The device for accurately rolling the thickness of a pole piece and a pole tab as claimed in claim 2, characterized in that: The first lifting group (52) further comprises a force sensor (523) and a control valve, wherein the force sensor (523) is arranged between the mounting bracket (521) and the lifting drive member (522), the control valve is in communication with the force sensor (523), and the control valve is in communication with the lifting drive member (522); The force sensor (523) is used to sense the pressure applied by the pressure wheel mechanism (4) in the direction of the roller (2), and the control valve is used to receive the signal sent by the force sensor (523) and send the signal to the lifting drive member (522) to control the operation of the lifting drive member (522).

7. The device for accurately rolling the thickness of a pole piece and a pole tab as claimed in claim 2, characterized in that: The pressing wheel mechanism (4) comprises a pressing wheel (41), a rotating shaft (42) and a fixing block (43); The rotating shaft (42) passes through the rotation center of the pressing wheel (41) and is fixedly connected to the pressing wheel (41); The mounting bracket (521) is provided with mounting grooves (44) on both sides of the pressure wheel (41); the fixing block (43) is detachably connected to the mounting bracket (521); and the two ends of the rotating shaft (42) are rotatably arranged in a space enclosed by the mounting grooves (44) and the fixing block (43).

8. The device for accurately rolling the thickness of a pole piece and a pole tab as claimed in claim 1, characterized in that: The pressure wheel horizontal adjustment mechanism (6) comprises a transition frame (61), a slide rail (62), a slide block (63), a horizontal adjustment screw rod (64), a horizontal adjustment screw rod nut (65), a locking piece mounting block (66) and a screw rod locking piece (67); The slide rail (62) is fixedly mounted on the mounting frame (1), and the slider (63) is slidably mounted on the slide rail (62); The mounting frame (3) is fixedly mounted on the sliding block (63); The transition frame (61) is fixedly connected to the mounting frame (1); The horizontal adjustment screw rod (64) is rotatably arranged on the transition frame (61), the horizontal adjustment screw rod nut (65) is threadedly connected to the horizontal adjustment screw rod (64), and the horizontal adjustment screw rod nut (65) is fixedly connected to the installation frame (3); The locking member mounting block (66) is fixedly connected to the transition frame (61) and is rotationally connected to the horizontal adjustment screw rod (64). The screw rod locking member (67) is arranged on the locking member mounting block (66). The screw rod locking member (67) is used to limit the rotation of the horizontal adjustment screw rod (64).

9. The device for accurately rolling the thickness of a pole piece and a pole tab as claimed in claim 1, characterized in that: It also includes a base (7) and a dust removal mechanism; The base (7) is arranged below the roller (2), and one side of the base (7) is fixedly connected to the mounting frame (1); A chamber (71) is provided in the base (7), and the chamber (71) is used to contain dust generated by rolling the tabs. The dust removal mechanism is connected to the chamber (71) and is used to remove the dust.

10. The device for accurately rolling the thickness of a pole piece and a pole tab as claimed in claim 1, characterized in that: It also comprises a roller drive assembly (9), wherein the fixed end of the roller drive assembly (9) is mounted on the mounting frame (1), and the output end of the roller drive assembly (9) is drivingly connected to the roller (2).

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