Lithium battery pole piece burr slitting tool

Abstract

The utility model discloses a lithium battery pole piece burr slitting tool which comprises a pole piece fixing mechanism and a detection mechanism, and the pole piece fixing mechanism comprises an X-direction moving structure, a pole piece fixing structure and a pole piece rotating structure; the pole piece rotating structure is mounted on a moving part of the X-direction moving structure, and the pole piece fixing structure is connected with a rotating part of the pole piece rotating structure; the detection mechanism comprises a detection structure and a Y-direction moving structure, the detection structure is installed on a moving part of the Y-direction moving structure, the arrangement direction of the Y-direction moving structure is perpendicular to that of the X-direction moving structure, and a detection part of the detection structure corresponds to a pole piece fixing part of the pole piece fixing structure. According to the utility model, the pole piece is fixed by using the strong magnet and the soft magnet, the pole piece fixing plate is rotated by using the first rotating shaft and the second rotating shaft, the detection direction of the pole piece is switched, the pole piece fixing plate can translate along the X direction, and burr detection is carried out on different positions of the pole piece in one observation direction by using the same visual angle; and the detection structure is arranged to be a structure capable of translating in the Y direction, so that a proper detection position can be adjusted according to the position of the pole piece. Switching of different positions and different observation directions of the pole piece can be achieved through rotation and translation, the pole piece fixing mode is simple, the detection time is greatly shortened, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to lithium battery production technical field, concretely relates to a lithium battery pole piece slitting burr frock. BACKGROUND

[0002] Unreasonable slitting, blanking process parameters can all lead to the burr of the cutting edge of lithium ion battery pole piece. The pole piece burr is easy to pierce the diaphragm, and the positive and negative pole contact can lead to high self-discharge, short circuit and fire explosion and other hazards. The measuring equipment of the burr mainly includes high-power electron microscope, visual detection equipment such as influence tester, and the measuring steps include multiple point observation on the positive, negative horizontal plane and vertical plane of the pole piece cutting edge.

[0003] And the current slitting burr frock can only carry out pole piece horizontal detection, cannot satisfy the function of horizontal and vertical bidirectional detection. And in the horizontal detection process, the pole piece is fixed through the cover plate, the process is complex, the time consumption is too long, and it is not easy to operate. UTILITY MODEL CONTENTS

[0004] The utility model provides a lithium battery pole piece slitting burr frock for solving the insufficient described in the prior art.

[0005] The utility model adopts the technical scheme that:

[0006] A lithium battery pole piece slitting burr frock, including pole piece fixed establishment and detection mechanism, the pole piece fixed establishment includes X direction movement structure, pole piece fixed structure and pole piece rotation structure, the pole piece rotation structure is installed on the movement of X direction movement structure, and the pole piece fixed structure is connected with the rotation of pole piece rotation structure, the detection mechanism includes detection structure and Y direction movement structure, and the detection structure is installed on the movement of Y direction movement structure, Y direction movement structure is perpendicular to the setting direction with X direction movement structure, and the detection of detection structure corresponds with the pole piece fixed part of pole piece fixed structure. X direction movement structure is used to drive pole piece fixed structure and pole piece rotation structure whole X direction translation, and the pole piece rotation structure is used to drive the pole piece fixed on pole piece fixed structure to rotate, realizes horizontal and vertical detection, and the detection structure uses microscope, and Y direction movement structure is used to drive detection structure to approach and away from the pole piece.

[0007] As a preferred scheme of the utility model, the pole piece fixed structure includes pole piece fixed plate, strong magnet and soft magnet, the strong magnet is embedded on the pole piece adhesion surface of pole piece fixed plate, and the adsorption end face opposite to the strong magnet of the soft magnet is used as the pole piece clamping surface. After the pole piece is placed on the pole piece adhesion surface, the soft magnet is placed on the outer side surface of the pole piece and is adsorbed with the strong magnet to fix the pole piece on the pole piece fixed plate, and four edges of the pole piece all exceed the pole piece fixed plate. The soft magnet and the strong magnet are separable, and the pole piece can be easily taken down without magnetism after the soft magnet is removed.

[0008] As a preferred scheme of the utility model, the pole piece rotating structure includes rotating base and first rotating shaft, rotating base is installed on the moving part of X direction movement structure, first rotating shaft is rotatably installed on rotating base, first rotating shaft is connected with pole piece fixed plate and drives pole piece fixed plate to rotate. First rotating shaft is main rotating shaft, rotates manually or electrically, drives connected pole piece fixed plate to rotate, realizes pole piece rotation switching pole piece horizontal and vertical detection, only needs to assemble pole piece once to realize horizontal and vertical detection.

[0009] As a preferred scheme of the utility model, the first rotating shaft is provided with plane orientation part, the outer circumferential wall of first rotating shaft is equipped with four orientation planes, the central angle corresponding to each orientation plane is 90 DEG, plane orientation part is located in the rotating shaft mounting hole of rotating base, rotating base is equipped with orientation hole, orientation screw passes through orientation hole and abuts with the orientation plane of plane orientation part. Plane orientation part is located in the middle position of first rotating shaft, directly cuts four planes as orientation planes, cross section is rectangle, the setting of orientation plane makes each rotation rotate with 90 DEG angle, after orientation screw is screwed in place, it is perpendicular with the corresponding orientation plane, and first rotating shaft also cannot rotate again, and two orientation planes are parallel with the pole piece adhesion surface of pole piece fixed plate.

[0010] As a preferred scheme of the utility model, the first rotating shaft is connected with pole piece fixed plate through connecting block, first rotating shaft is inserted in the center hole of connecting block, fixed hole is symmetrically arranged on both sides of center hole, fixed pin is inserted into the positioning hole of pole piece fixed plate side wall through fixed hole, and fixed pin is tightly matched with positioning hole. The setting of connecting block is to connect and fix first rotating shaft and pole piece fixed plate, the center hole of connecting block and the rotating shaft mounting hole axis of rotating base coincide, and rotating first rotating shaft makes pole piece fixed plate rotate synchronously.

[0011] As a preferred scheme of the utility model, the pole piece rotating structure further includes rotating bearing seat and second rotating shaft, second rotating shaft is rotatably installed on rotating bearing seat, rotating bearing seat is installed on the moving part of X direction movement structure, connecting block is sleeved on the corresponding end of second rotating shaft and pole piece fixed plate, second rotating shaft is inserted in the center hole of connecting block, fixed hole is symmetrically arranged on both sides of center hole, fixed pin is inserted into the positioning hole of pole piece fixed plate side wall through fixed hole, and fixed pin is tightly matched with positioning hole. In order to ensure the flatness of pole piece fixed plate, both ends of pole piece fixed plate are rotatably supported, second rotating shaft supports the other end of pole piece fixed plate, and the axis of second rotating shaft coincides with the axis of first rotating shaft, to ensure that the both ends of pole piece fixed plate are at the same height. Second rotating shaft is driven shaft, rotates with the rotation of pole piece fixed plate.

[0012] As a preferred scheme of the utility model, the connecting block is provided with a locking hole, the locking hole is vertically communicated with the center hole, a locking pin is inserted into the center hole through the locking hole and abuts against the outer wall of the first rotating shaft or the outer wall of the second rotating shaft. The first rotating shaft and the second rotating shaft are installed in the respective bases through bearings, and the locking pin is arranged between the first rotating shaft and the second rotating shaft and the corresponding connecting block to avoid asynchronous rotation.

[0013] As a preferred scheme of the utility model, the end of the first rotating shaft away from the pole piece fixing plate is provided with a rotating handle. The rotating handle is rotated to rotate the first rotating shaft, and further drive the pole piece fixing plate to rotate.

[0014] As a preferred scheme of the utility model, the X-direction moving structure and the Y-direction moving structure are manual linear or electric linear structures, preferably electric linear structures, which can use linear sliding tables or motor screw nut structures.

[0015] The utility model uses strong magnets and soft magnets to fix the pole pieces, and uses the first rotating shaft and the second rotating shaft to rotate the pole piece fixing plate, switch the detection direction of the pole pieces, and the pole piece fixing plate can be translated along the X-direction, and the same angle of view is used to detect burrs at different positions in one observation direction of the pole pieces, and the detection structure is arranged to be capable of being translated along the Y-direction, and the appropriate detection position can be adjusted according to the position of the pole pieces. The utility model can switch different positions and different observation directions of the pole pieces through rotation and translation, the pole piece fixing mode is simple, the detection time is greatly shortened, and the working efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to these drawings without creative labor for those skilled in the art.

[0017] Figure 1 It is a structural schematic view of the utility model.

[0018] Figure 2 It is an assembly schematic view of the pole piece fixing structure and the pole piece rotating structure of the utility model.

[0019] Figure 3 It is Figure 2 a top view.

[0020] Figure 4 It is Figure 3 a sectional view.

[0021] Figure 5This is an assembly diagram of the first rotating shaft, the second rotating shaft, and the electrode fixing plate of this utility model. Detailed Implementation

[0022] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example:

[0024] A lithium battery electrode cutting and deburring tool, such as Figure 1 As shown, it includes an electrode fixing mechanism and a detection mechanism. The electrode fixing mechanism includes an X-axis moving structure 1, an electrode fixing structure 2, and an electrode rotating structure 3. The electrode rotating structure 3 is mounted on the moving part of the X-axis moving structure 1, and the electrode fixing structure 2 is connected to the rotating part of the electrode rotating structure 3.

[0025] The X-direction moving structure 1 is mainly used to change the X-direction position of the electrode rotation structure and the electrode fixing structure, wherein the X-direction is along the length direction of the electrode fixing plate. Manual or electric moving structures can be used, such as linear slides or lead screw and nut structures. This embodiment uses a motor lead screw and nut structure as an example.

[0026] like Figure 1 As shown, the X-axis moving structure 1 includes an X-axis base plate 11, X-axis guide rails 12, an X-axis lead screw 13, a nut, a first slider 14, and a second slider 15. The two X-axis guide rails 12 are fixed to the upper surface of the X-axis base plate 11. A bearing seat is provided at both ends of the X-axis lead screw 13, allowing the X-axis lead screw 13 to rotate. The X-axis lead screw 13 is located between the two X-axis guide rails 12. One end of the X-axis lead screw 13 is connected to the motor output shaft via a coupling. The first slider 14 and the second slider 15 are spaced apart and are both connected to the nuts on the X-axis lead screw 13. The first slider 14 and the second slider 15 are slidably connected to the two X-axis guide rails 12. The rotation of the motor drives the X-axis lead screw 13 to rotate. The two nuts on the X-axis lead screw 13 are threadedly connected to the X-axis lead screw 13. The first slider 14 and the second slider 15, fixed on the nuts, convert the rotation of the nuts into linear movement along the X-axis lead screw 13 under the constraint of the X-axis guide rails 12.

[0027] like Figure 4 and 5 As shown, the electrode rotation structure 3 includes a rotating base 31, a first rotating shaft 32, a rotating bearing seat 35, and a second rotating shaft 36. The rotating base 31 is mounted on the first slider 14, and the rotating bearing seat 35 is mounted on the second slider 15.

[0028] The first rotating shaft 32 is rotatably mounted on the rotating base 31. Specifically, the rotating base 31 is provided with a rotating shaft mounting hole, and the first rotating shaft 32 is arranged in the rotating shaft mounting hole. The first rotating shaft 32 is provided with a planar orientation part 39. The outer circumferential wall of the first rotating shaft 32 is provided with four orientation planes, and the central angle of each orientation plane is 90°. Two orientation planes are parallel to the pole piece attachment surface of the pole piece fixing plate.

[0029] The planar orientation part is located in the rotating shaft mounting hole of the rotating base 31, and the rotating base 31 is provided with an orientation hole. The orientation screw 37 passes through the orientation hole and abuts against the orientation plane of the planar orientation part. The planar orientation part is located at the middle position of the first rotating shaft. Four planes are directly cut as orientation planes. The cross section is rectangular. The orientation planes are arranged to rotate at an angle of 90° each time. After the orientation screw is tightened in place, it is perpendicular to the corresponding orientation plane, and the first rotating shaft cannot rotate again.

[0030] The end of the first rotating shaft 32 exposed from the rotating base 31 is connected with the pole piece fixing plate 21 and drives the pole piece fixing plate 21 to rotate.

[0031] Specifically, as shown in Figures 2-5 The first rotating shaft 32 and the pole piece fixing plate 21 of the pole piece fixing structure 2 are connected through a connecting block 33. The first rotating shaft 32 is inserted into the center hole of the connecting block 33. Fixed holes are symmetrically arranged on both sides of the center hole. The fixed pin is inserted into the positioning hole of the side wall of the pole piece fixing plate 21 through the fixed hole. The fixed pin is tightly matched with the positioning hole. The connecting block 33 is provided with a locking hole which is vertically communicated with the center hole. The locking pin is inserted into the center hole through the locking hole and abuts against the outer wall of the first rotating shaft. The connecting block is arranged to connect and fix the first rotating shaft and the pole piece fixing plate. The center hole of the connecting block is coaxial with the rotating shaft mounting hole of the rotating base. The first rotating shaft is rotated to drive the pole piece fixing plate to rotate synchronously.

[0032] The first rotating shaft is the main rotating shaft. It is manually or electrically rotated to drive the connected pole piece fixing plate to rotate, realize the rotation switching of the pole piece, and realize the horizontal and vertical detection of the pole piece. Once the pole piece is assembled, horizontal and vertical detection can be realized. This embodiment is taken as an example to demonstrate manual operation. The rotating handle 38 is mounted at the end of the first rotating shaft 32 away from the pole piece fixing plate 21. Rotating the rotating handle can manually rotate the first rotating shaft, and then drive the pole piece fixing plate to rotate.

[0033] The second rotating shaft 36 is rotatably installed on the rotating bearing seat 35, the end of the second rotating shaft 36 corresponding to the pole piece fixing plate 21 is sleeved with a connecting block 33, the second rotating shaft 36 is inserted into the center hole of the connecting block 33, the connecting block 33 is provided with a locking hole which is vertically communicated with the center hole, and the locking pin is inserted into the center hole through the locking hole and abuts against the outer wall of the second rotating shaft. The fixed holes are symmetrically arranged on both sides of the center hole, and the fixed pin is inserted into the positioning hole of the side wall of the pole piece fixing plate 21 through the fixed hole, and the fixed pin is tightly matched with the positioning hole.

[0034] In order to ensure the flatness of the pole piece fixing plate, the both ends of the pole piece fixing plate are rotatably supported by the rotating base and the rotating bearing seat, the axis of the second rotating shaft coincides with the axis of the first rotating shaft, and the both ends of the pole piece fixing plate are ensured to be in the same height. The second rotating shaft is a driven rotating shaft which rotates with the rotation of the pole piece fixing plate.

[0035] Of course, the pole piece fixing plate can be only single-sidedly supported by the rotating base and the first rotating shaft.

[0036] As shown in Figure 1 , 2 , 3, 5, the pole piece fixing structure 2 comprises a pole piece fixing plate 21, a strong magnet 22 and a soft magnet; the strong magnet 22 is embedded on the pole piece adhering surface of the pole piece fixing plate 21, and the adsorbing end surface of the soft magnet opposite to the strong magnet 22 serves as a pole piece clamping surface. After the pole piece is placed on the pole piece adhering surface, the soft magnet is placed on the outer side surface of the pole piece and is adsorbed with the strong magnet to fix the pole piece on the pole piece fixing plate, and the four edges of the pole piece all exceed the pole piece fixing plate. The soft magnet and the strong magnet are separable, and the pole piece can be easily taken off without magnetism after the soft magnet is taken off.

[0037] The detection mechanism comprises a detection structure 4 and a Y-direction moving structure 5, the detection structure 4 is installed on the moving part of the Y-direction moving structure 5, the Y-direction moving structure 5 is perpendicular to the setting direction of the X-direction moving structure 1, and in the embodiment, the X-direction base plate 11 is erected above the Y-direction base plate of the Y-direction moving structure 5 through the supporting leg. The detection part of the detection structure 4 corresponds to the pole piece fixing part of the pole piece fixing structure 2. The Y-direction moving structure 5 is a manual linear or electric linear structure, and preferably an electric linear structure, which can use a linear sliding table or a motor screw nut structure. The structure of the Y-direction moving structure 5 is the same as that of the X-direction moving structure 1, and only the setting direction is different.

[0038] In use, the pole piece is placed on the pole piece attachment surface, the edges of the pole piece exceed the pole piece fixing plate, then the soft magnet is placed on the outer side of the pole piece and is adsorbed by the strong magnet to fix the pole piece, then the directional screw is loosened to enable the first rotating shaft to rotate, the first rotating shaft rotates with the pole piece fixing plate, the pole piece attachment surface is in a horizontal state as a first detection surface, the directional screw is tightened to realize fixation, the Y-direction moving structure is adjusted to enable the detection structure to reach a detection position, after the position is detected, the X-direction screw is adjusted to change the position of the pole piece relative to the detection structure, the other edge of the pole piece is observed, after the same detection direction and different horizontal positions are detected, the detection structure is retreated, the directional screw is loosened to rotate the pole piece fixing plate, the pole piece fixing plate is in another detection direction, after the directional screw is tightened, the same detection parameter detection structure is used to observe the other edge of the pole piece.

[0039] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0040] The above is only a preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the application concept of the present application within the technical range disclosed by the present application, which should be included in the protection scope of the present application.

Claims

1. A lithium battery pole piece slitting burr tool, characterized in that: The pole piece fixing mechanism comprises an X-direction moving structure (1), a pole piece fixing structure (2) and a pole piece rotating structure (3); the pole piece rotating structure (3) is installed on the moving part of the X-direction moving structure (1), and the pole piece fixing structure (2) is connected with the rotating part of the pole piece rotating structure (3); the detection mechanism comprises a detection structure (4) and a Y-direction moving structure (5), the detection structure (4) is installed on the moving part of the Y-direction moving structure (5), the Y-direction moving structure (5) is perpendicular to the setting direction of the X-direction moving structure (1), and the detection part of the detection structure (4) corresponds to the pole piece fixing part of the pole piece fixing structure (2).

2. The lithium battery pole piece slitting burr tooling of claim 1, wherein: The pole piece fixing structure (2) comprises a pole piece fixing plate (21), a strong magnet (22) and a soft magnet; the strong magnet (22) is embedded on the pole piece adhering surface of the pole piece fixing plate (21), and the adsorbing end surface opposite to the strong magnet (22) is used as the pole piece clamping surface.

3. The lithium battery pole piece slitting burr tooling of claim 2, wherein: The pole piece rotating structure (3) comprises a rotating base (31) and a first rotating shaft (32); the rotating base (31) is installed on the moving part of the X-direction moving structure (1), and the first rotating shaft (32) is rotatably installed on the rotating base (31); the first rotating shaft (32) is connected with the pole piece fixing plate (21) and drives the pole piece fixing plate (21) to rotate.

4. The lithium battery pole piece slitting burr tooling of claim 3, wherein: The first rotating shaft (32) is provided with a planar orientation part, the outer circumferential wall of the first rotating shaft (32) is provided with four orientation planes, and the central angle corresponding to each orientation plane is 90°; the planar orientation part is located in the rotating shaft mounting hole of the rotating base (31), the rotating base (31) is provided with a direction hole, and the direction screw (37) passes through the direction hole and abuts against the orientation plane of the planar orientation part.

5. The lithium battery pole piece slitting burr tooling of claim 3 or 4, wherein: The first rotating shaft (32) and the pole piece fixing plate (21) are connected through the connecting block (33), the first rotating shaft (32) is inserted into the center hole of the connecting block (33), and the fixed holes are symmetrically arranged on both sides of the center hole; the fixed pin is inserted into the positioning hole in the side wall of the pole piece fixing plate (21) through the fixed hole, and the fixed pin is tightly matched with the positioning hole.

6. The lithium battery pole piece slitting burr tooling of claim 5, wherein: The pole piece rotating structure (3) further comprises a rotating bearing seat (35) and a second rotating shaft (36); the second rotating shaft (36) is rotatably installed on the rotating bearing seat (35), the rotating bearing seat (35) is installed on the moving part of the X-direction moving structure (1), and the end part of the second rotating shaft (36) corresponding to the pole piece fixing plate (21) is sleeved with the connecting block (33); the second rotating shaft (36) is inserted into the center hole of the connecting block (33), and the fixed holes are symmetrically arranged on both sides of the center hole; the fixed pin is inserted into the positioning hole in the side wall of the pole piece fixing plate (21) through the fixed hole, and the fixed pin is tightly matched with the positioning hole.

7. The lithium battery pole piece slitting burr tooling of claim 6, wherein: The connecting block (33) is provided with a locking hole, the locking hole is vertically communicated with the center hole, and the locking pin is inserted into the center hole through the locking hole and abuts against the outer wall of the first rotating shaft or the second rotating shaft.

8. The lithium battery pole piece slitting burr tooling of claim 6, wherein: The end part of the first rotating shaft (32) away from the pole piece fixing plate (21) is provided with a rotating handle (38).

Images