Pole piece surface micromachining device

Abstract

The utility model discloses a pole piece surface micromachining device, which comprises a fixed support, a compression roller mechanism and a magnetic roller, the compression roller mechanism and the magnetic roller are arranged on the fixed support, the compression roller mechanism comprises a compression roller and a driving component, the driving component drives the compression roller to move close to or far away from the magnetic roller, and a cutter made of ferromagnetic metal is adsorbed on the magnetic roller. Through the arrangement of the magnetic roller, the cutter can be adsorbed on the magnetic roller, and the cutter is provided with a micromachining needle body structure, so that the needle body is prevented from being directly machined on the roller, the machining difficulty can be reduced, meanwhile, only the cutter needs to be replaced during remodeling and maintenance, and the maintenance cost and time are greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery manufacturing technical field, concretely relates to a kind of pole piece surface microprocessing device. BACKGROUND

[0002] With the wide application of lithium battery, terminal has higher request to the battery capacity and charge-discharge rate of lithium battery. Under the condition that the volume of lithium battery is certain, increasing battery capacity will inevitably increase coating surface density, coating layer thickening, leading to the increase of battery internal resistance, hindering lithium ion extraction, ultimately affecting the charge-discharge rate of battery. In order to improve the charge-discharge rate, the electrode needs to be microprocessed to artificially manufacture lithium ion channel. In related technology, patterned roller is widely used for microprocessing of electrode, but the biggest disadvantage of this rolling method is high processing difficulty and high cost, and it is difficult to adjust the type change, and the roller pattern is damaged, which is not convenient for maintenance and replacement. SUMMARY

[0003] In order to overcome the shortcomings of the prior art, the utility model provides a kind of pole piece surface microprocessing device, by the setting of magnetic roller, tool can be adsorbed on magnetic roller, tool has needle body, which avoids directly processing needle body on roller, can reduce processing difficulty, and only needs to replace tool when needing type change and maintenance, greatly reduces maintenance cost and time.

[0004] The utility model solves the technical scheme that it adopts:

[0005] A kind of pole piece surface microprocessing device, including fixed support, pressure roller mechanism and magnetic roller installed on fixed support, the pressure roller mechanism includes pressure roller and drive component that drives the pressure roller to move close to or away from the magnetic roller, the magnetic roller is adsorbed with the tool made of ferromagnetic metal.

[0006] As a further improvement of the above technical solution, the magnetic roller is an electromagnet structure.

[0007] As a further improvement of the above technical solution, the tool includes tool body and a plurality of microprocessing needle body structures arranged on the side of the tool body away from the magnetic roller, the tool body is arc structure, and the curvature of the tool body is less than or equal to 180 °.

[0008] As a further improvement of the above technical solution, the pressure roller mechanism further includes a connecting assembly, the connecting assembly is slidably connected to the fixed support in the vertical direction, the pressure roller is installed on the connecting assembly, and the drive assembly is installed on the fixed support and connected to the connecting assembly at the output end.

[0009] As a further improvement of the above technical solution, the connecting assembly comprises a connecting horizontal plate and two fixing plates vertically arranged on both sides of the connecting horizontal plate, and the compression roller is rotatably connected between the two fixing plates.

[0010] As a further improvement of the above technical solution, two guide shafts on the same axis are rotatably connected to the two fixing plates, and the two ends of the compression roller are connected to the two guide shafts through a quick-release structure, the quick-release structure comprises a guide sleeve and a locking sleeve, the mounting shafts of the guide shafts and the ends of the compression roller are connected to the guide sleeve, and the locking sleeve is used for locking the guide sleeve.

[0011] As a further improvement of the above technical solution, the connecting horizontal plate and the fixing support are connected through a linear guide rail assembly, the linear guide rail assembly comprises a guide rail vertically mounted on the fixing support and a sliding block fixedly mounted on the connecting horizontal plate, and the sliding block is slidably connected to the guide rail.

[0012] As a further improvement of the above technical solution, the driving assembly and the connecting assembly are connected through a floating mounting assembly.

[0013] As a further improvement of the above technical solution, the driving assembly comprises a piston rod vertically downwardly arranged in a cylinder.

[0014] As a further improvement of the above technical solution, the floating mounting assembly comprises a connecting plate, an elastic member and a joint, the connecting plate is fixedly connected to the connecting horizontal plate, the joint is connected to the piston rod of the cylinder, and the elastic member is connected between the connecting plate and the joint.

[0015] The beneficial effects of the utility model are:

[0016] When the surface of the pole piece is microprocessed, the pole piece passes between the magnetic roller and the compression roller, the compression roller moves close to the magnetic roller to press the pole piece on the cutter on the magnetic roller, and the surface microprocessing of the pole piece is realized when the pole piece passes. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be further described below in combination with the drawings and examples.

[0018] Figure 1 is the assembly schematic view of the pole piece surface microprocessing device of the utility model embodiment;

[0019] Figure 2 is the structure split drawing of the pole piece surface microprocessing device of the utility model embodiment;

[0020] Figure 3It is the assembling schematic view of the magnetic roller and the cutter in the pole piece surface microprocessing device of the utility model embodiment;

[0021] Figure 4 It is the change type schematic view of the cutter and the compression roller in the utility model embodiment;

[0022] Figure 5 It is the pole piece surface microprocessing shape schematic view.

[0023] Fig. 1 is fixed support, 11 is bottom plate, 12 is vertical plate, 13 is side plate, 14 is top plate, 2 is magnetic roller, 3 is cutter, 31 is cutter body, 32 is punch needle body, 4 is compression roller, 5 is drive assembly, 51 is pneumatic cylinder, 52 is piston rod, 6 is connecting assembly, 61 is connecting cross plate, 62 is fixed plate, 63 is guide rail, 64 is sliding block, 7 is floating installation assembly, 71 is connecting plate, 72 is elastic piece, 73 is joint, 8 is quick-release structure, 9 is guide shaft. DETAILED DESCRIPTION

[0024] The utility model will be described clearly, completely to the conception, specific structure and the technical effect of the utility model with embodiment and attached drawing, to fully understand the purpose, characteristics and effect of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all embodiments, on the basis of the embodiment of the utility model, the other embodiments obtained by the skilled in the art without creating labor, all belong to the scope of the utility model protection. In addition, all the coupling / connection relations involved in the patent do not mean that the components are directly connected, but that a better coupling structure can be formed by adding or reducing coupling auxiliary components according to the specific implementation situation, such as fixed connection / fixed installation, which can be selected according to the needs screw connection, bolt connection, pin connection, key connection, bonding, mortise and tenon connection, welding, riveting and other modes, such as detachable connection, which can be selected according to the needs screw connection, bolt connection, threaded connection, buckle connection, mortise and tenon connection, magic tape connection and other modes. The technical features in the utility model creation can be interactively combined without mutual contradiction and conflict.

[0025] Reference Figure 1 And Figure 2 The utility model embodiment provides a kind of pole piece surface microprocessing device, including fixed support 1 and the compression roller 4 mechanism and magnetic roller 2 of installation on fixed support 1, the compression roller 4 mechanism includes compression roller 4 and the drive assembly 5 of driving the compression roller 4 close to or far from the magnetic roller 2 movement, the cutter 3 made of ferromagnetic metal is adsorbed on the magnetic roller 2, so when pole piece surface microprocessing, pole piece passes through between magnetic roller 2 and compression roller 4, the drive assembly 5 drives compression roller 4 to move close to magnetic roller 2 and moves pole piece on the cutter 3 on magnetic roller 2, pole piece passes and realizes pole piece surface microprocessing when magnetic roller 2 rotates.

[0026] In the embodiment, the magnetic roller 2 is an electromagnet structure, and the magnetic roller 2 can be magnetized or demagnetized by switching on or off the electricity, so that the tool 3 can be quickly taken off from the magnetic roller 2, the efficiency of replacing the tool 3 is improved, and the maintenance cost and time are greatly reduced.

[0027] Further, the tool 3 comprises a tool body 31 and a plurality of micro-machining needle structures arranged on the side of the tool body 31 away from the magnetic roller 2. The tool body 31 is an arc structure, and the curvature of the tool body 31 is less than or equal to 180°, so that the tool body 31 can be attached to the magnetic roller 2.

[0028] It can be understood that different micro-machining needle structures can be arranged according to different micro-machining shapes of the surface of the pole piece (see Figure 5 ). For example, in the embodiment, the pole piece is punched, and the micro-machining needle structure adopts a punching needle 32. Specifically, see Figure 3 , a plurality of punching needles 32 are arranged on the tool body 31.

[0029] In the embodiment, referring to Figure 1 and Figure 2 , the pressing roller 4 mechanism further comprises a connecting assembly 6, the connecting assembly 6 is slidably connected to the fixed support 1 in the vertical direction, the pressing roller 4 is installed on the connecting assembly 6, and the driving assembly 5 is installed on the fixed support 1 and connected to the connecting assembly 6.

[0030] Further, the connecting assembly 6 comprises a connecting cross plate 61 and a fixed plate 62 vertically arranged on both sides of the connecting cross plate, the pressing roller 4 is rotatably connected between the two fixed plates 62. Specifically, two guide shafts 9 on the same axis are rotatably connected to the two fixed plates 62, and the two ends of the pressing roller 4 are connected to the two guide shafts 9 through a quick-release structure 8. The quick-release structure 8 comprises a guide sleeve and a locking sleeve, the mounting shafts of the guide shaft 9 and the end of the pressing roller 4 are connected to the guide sleeve, and the locking sleeve is used to lock the guide sleeve. When the pressing roller 4 needs to be disassembled, only the locking sleeve needs to be loosened and then the guide sleeve is moved, so that the pressing roller 4 can be quickly taken off, so as to facilitate the replacement of the pressing roller 4.

[0031] Different replacement modes (different width of the pressing roller 4 and the tool 3) are shown as Figure 4 .

[0032] Replacement mode one: the tool 3 and the pressing roller 4 are full width, and the full width pole piece can be punched by the pressing of the pressing roller 4.

[0033] The second changing mode: the cutter 3 is full width, a step is milled in the middle region of the compression roller 4 to avoid contact, and the local position of the pole piece can be punched, and on the basis of the first changing mode, only the compression roller 4 needs to be replaced to realize quick changing.

[0034] The third changing mode: the cutter 3 is local width, and the compression roller 4 is full width, on the basis of the first changing mode, the cutter 3 is replaced, and quick changing can be realized by adjusting the cutter 3 to the local processing position, and this mode can reduce the processing width of the cutter 3, reduce certain cost, processing difficulty and delivery time.

[0035] In the embodiment, referring to Figure 2 , the fixed support 1 comprises a bottom plate 11, a vertical plate 12, a side plate 13 and a top plate 14, the connecting horizontal plate 61 and the side plate 13 are connected through a linear guide rail 63 assembly, the linear guide rail 63 assembly comprises a guide rail 63 vertically installed on the side plate 13 and a sliding block 64 fixedly installed on the connecting horizontal plate 61, the sliding block 64 is in sliding connection with the guide rail 63, so that the stability of the vertical movement of the compression roller 4 is realized.

[0036] In some embodiments, referring to Figure 2 , the driving assembly 5 and the connecting assembly 6 are connected through a floating mounting assembly 7, and the floating mounting assembly 7 is arranged to avoid damage to the pole piece and the cutter 3 caused by hard contact when the driving assembly 5 drives the compression roller 4 to press down. Specifically, the driving assembly 5 comprises a piston rod 52 and a cylinder 51 arranged vertically downward, the cylinder 51 is installed on the top plate 14, the floating mounting assembly 7 comprises a connecting plate 71, an elastic member 72 and a joint 73, the connecting plate 71 is fixedly connected to the connecting horizontal plate 61, the joint 73 is connected to the piston rod 52 of the cylinder 51, and the elastic member 72 is connected between the connecting plate 71 and the joint 73, so that the pressure buffer is realized through the elastic member 72, and the structural reliability is improved.

[0037] The above is a specific description of the preferred embodiment of the utility model, but the utility model is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the utility model, and these equivalent modifications or replacements are all included in the range defined by the claims of the present application.

Claims

1. A device for micromachining electrode surfaces, characterized in that: It includes a fixed bracket, a pressure roller mechanism mounted on the fixed bracket, and a magnetic roller. The pressure roller mechanism includes a pressure roller and a drive assembly that drives the pressure roller to move closer to or away from the magnetic roller. A cutter made of ferromagnetic metal is adsorbed on the magnetic roller.

2. The electrode surface micromachining device according to claim 1, characterized in that: The magnetic roller is an electromagnet structure.

3. The electrode surface micromachining device according to claim 2, characterized in that: The cutting tool includes a cutting tool body and a plurality of micro-machining needle structures disposed on the side of the cutting tool body away from the magnetic roller. The cutting tool body is an arc-shaped structure, and the arc of the cutting tool body is less than or equal to 180°.

4. The electrode surface micromachining device according to claim 1, characterized in that: The pressure roller mechanism further includes a connecting component, which is slidably connected to the fixed bracket in a vertical direction. The pressure roller is mounted on the connecting component, and the driving component is mounted on the fixed bracket with its output end connected to the connecting component.

5. The electrode surface micromachining device according to claim 4, characterized in that: The connecting assembly includes a connecting horizontal plate and fixed plates vertically arranged on both sides of the connecting horizontal plate, and the pressure roller is rotatably connected between the two fixed plates.

6. The electrode surface micromachining device according to claim 5, characterized in that: Two fixed plates are rotatably connected to guide shafts located on the same axis. The two ends of the pressure roller are respectively connected to the two guide shafts through a quick-release structure. The quick-release structure includes a guide sleeve and a locking sleeve. The guide shaft and the mounting shaft at the end of the pressure roller are both connected inside the guide sleeve. The locking sleeve is used to lock the guide sleeve.

7. The electrode surface micromachining device according to claim 5, characterized in that: The connecting horizontal plate and the fixed bracket are connected by a linear guide rail assembly. The linear guide rail assembly includes a guide rail that is vertically mounted on the fixed bracket and a slider that is fixedly mounted on the connecting horizontal plate. The slider is slidably connected to the guide rail.

8. The electrode surface micromachining device according to claim 7, characterized in that: The drive component and the connection component are connected by a floating mounting component.

9. The electrode surface micromachining device according to claim 8, characterized in that: The drive assembly includes a cylinder with the piston rod positioned vertically downwards.

10. The electrode surface micromachining device according to claim 9, characterized in that: The floating mounting assembly includes a connecting plate, an elastic element, and a connector. The connecting plate is fixedly connected to the connecting cross plate, the connector is connected to the piston rod of the cylinder, and the elastic element is connected between the connecting plate and the connector.

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