Lithium metal strip polishing device

Abstract

The utility model discloses a metal lithium strip polishing device, and relates to the technical field of lithium batteries. Comprising a workbench, a polishing carrier plate and an X-axis driving device are arranged on the workbench, the X-axis driving device is arranged on one side of the polishing carrier plate, the driving direction of the X-axis driving device is consistent with the length direction of the polishing carrier plate, and a Z-axis driving device is arranged at the movable end of the X-axis driving device; the movable end of the Z-axis driving device is provided with a polishing wheel rotationally connected with the Z-axis driving device, the polishing wheel is opposite to the polishing carrier plate, and the Z-axis driving device is further provided with a polishing motor used for driving the polishing wheel. According to the semi-automatic metal lithium battery polishing device, a metal lithium battery is polished in a semi-automatic mode, the operation difficulty of workers is reduced, the polishing efficiency is improved, the polishing force is consistent, and the polishing quality is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, in particular to a metal lithium belt polishing device. Background Art

[0002] As a new type of secondary battery, lithium batteries offer advantages such as high energy and power density, high operating voltage, light weight, compact size, long cycle life, excellent safety, and environmental friendliness. They hold broad application prospects in portable appliances, power tools, large-scale energy storage, and electric transportation power sources. Among the numerous lithium battery anode materials, metallic lithium is considered the most ideal due to its low density, high theoretical capacity, and low potential.

[0003] However, due to the high chemical activity of lithium metal, a passivation layer easily forms on its surface during rolling, transportation, and storage. This passivation layer can easily lead to an uneven protective layer formed by the lithium metal, seriously affecting the protective layer's effectiveness. Therefore, a smooth lithium metal surface is equally important for forming a lithium metal protective layer.

[0004] Currently, the method for smoothing lithium metal strips is usually to manually polish them using cleaning balls or polishing wheels. However, manual polishing is inefficient and requires high standards of workers. The working conditions of the workers will also affect the quality of the polished lithium metal strips. Utility Model Content

[0005] The main purpose of the utility model is to provide a metal lithium belt polishing device to solve the above problems.

[0006] To achieve the above-mentioned purpose, the utility model provides a metal lithium strip polishing device, comprising a workbench, on which a polishing carrier and an X-axis drive device are provided. The X-axis drive device is arranged on one side of the polishing carrier, and the driving direction of the X-axis drive device is consistent with the length direction of the polishing carrier. A Z-axis drive device is arranged on the movable end of the X-axis drive device, and a polishing wheel rotatably connected to the Z-axis drive device is arranged on the movable end of the Z-axis drive device. The polishing wheel is opposite to the polishing carrier, and the Z-axis drive device is also provided with a polishing motor for driving the polishing wheel.

[0007] Furthermore, a Y-axis driving device is provided on the movable end of the Z-axis driving device, and the polishing wheel and the polishing motor are provided on the movable end of the Y-axis driving device.

[0008] Furthermore, the Y-axis drive device includes a slide rail, a slider and a locking device; the slide rail is arranged on the movable end of the Z-axis drive device, the slider and the locking device are slidably connected to the slide rail, the locking device is fixedly connected to the slider, and the locking device is used to temporarily fix the slider on the slide rail; the sliding direction of the slider is perpendicular to the driving direction of the X-axis drive device, the polishing wheel is rotatably connected to the slider, and the polishing motor is arranged on the slider and is drivingly connected to the polishing wheel.

[0009] Furthermore, a gantry is provided on the workbench, and two columns of the gantry are respectively located on both sides of the polishing carrier plate. A vertical lifting component is provided on the crossbeam of the gantry, and a pressure plate is provided at the bottom of the vertical lifting component.

[0010] Furthermore, the vertical lifting assembly includes a rotating frame, a handle, a connecting rod and a lifting column; the rotating frame is vertically arranged on the crossbeam of the gantry, the top of the rotating frame is provided with a rotating seat, and the bottom is provided with a sleeve, the handle includes a short rod and a long rod, and there is a certain angle between the short rod and the long rod, the end of the short rod away from the long rod is rotatably connected to the rotating seat, the top of the connecting rod is rotatably connected to the connection between the long rod and the short rod, the bottom of the connecting rod is fixedly connected to the top of the lifting column, the lifting column is sleeved in the sleeve and slidably connected to the sleeve, and the pressure plate is provided at the bottom of the lifting column.

[0011] Furthermore, through holes are provided at both ends of the pressure plate, and limiting columns are sleeved in the through holes. The limiting columns are slidably connected to the through holes, and the bottom of the limiting columns is fixedly connected to the workbench. The height of the limiting columns is greater than the maximum rising height of the pressure plate. A spring is sleeved on the outer side of the limiting column, one end of the spring is connected to the pressure plate, and the other end is connected to the workbench. A pressure block is provided at the bottom of the pressure plate.

[0012] Furthermore, the X-axis drive device includes a guide rail, a ball screw assembly and a drive platform; the guide rail is arranged on the workbench, the ball screw assembly is arranged on one side of the guide rail, the bottom of the drive platform is slidingly connected to the guide rail, one side of the drive platform is drivingly connected to the ball screw assembly, and the ball screw assembly is provided with a servo motor for driving the ball screw assembly.

[0013] The utility model has the following beneficial effects:

[0014] The utility model polishes the metal lithium battery in a semi-automatic manner, which reduces the operating difficulty of the staff, improves the polishing efficiency, makes the force during polishing consistent, and ensures the polishing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of a metal lithium belt polishing device of the present invention;

[0016] Figure 2 This is a schematic diagram of an X-axis drive device of a metal lithium belt polishing device of the present invention;

[0017] Figure 3 This is a schematic diagram of a Y-axis drive device of a metal lithium belt polishing device of the present invention;

[0018] Figure 4 This is a schematic diagram of a vertical lifting component of a metal lithium belt polishing device of the utility model.

[0019] In the figure: 1-workbench; 2-polishing carrier; 3-X-axis drive device; 31-guide rail; 32-ball screw assembly; 33-drive platform; 34-heightening frame; 4-Z-axis drive device; 5-polishing wheel; 51-polishing motor; 6-Y-axis drive device; 61-slide rail; 62-slider; 63-locking device; 7-gantry; 71-pressure plate; 711-limiting column; 712-spring; 713-pressure block; 72-rotating frame; 721-sleeve; 73-handle; 74-connecting rod; 75-lifting column. DETAILED DESCRIPTION

[0020] In order to achieve the above-mentioned purpose and effect, the technical means and structure adopted by the present invention are described in detail with reference to the accompanying drawings for the features and functions of the preferred embodiments of the present invention.

[0021] As attached Figure 1-4 As shown, the present invention provides a metallic lithium strip polishing device, comprising a workbench 1, on which is disposed a polishing carrier plate 2 and an X-axis drive device 3. The X-axis drive device 3 is disposed on one side of the polishing carrier plate 2 and comprises a guide rail 31, a ball screw assembly 32, and a drive platform 33. The guide rail 31 is disposed on the workbench 1, and the ball screw assembly 32 is disposed on the side of the guide rail 31 away from the polishing carrier plate 2. A servo motor for driving the ball screw assembly 32 is disposed at one end of the ball screw assembly 32. The bottom of the drive platform 33 is slidably connected to the guide rail 31, and one side of the drive platform 33 is fixedly connected to the movable base of the ball screw assembly 32. A Z-axis drive device 4 is disposed on the drive platform 33. The Z-axis drive device 4 can be specifically an electric cylinder. The movable end of the electric cylinder is provided with a bracket. The bracket is provided with a polishing wheel 5 rotatably connected to the bracket and a polishing motor 51 for driving the polishing wheel 5. The polishing wheel 5 is located directly above the polishing carrier plate 2.

[0022] In actual use, the staff first places the cut lithium metal strip flat on the polishing carrier plate 2, then activates the electric cylinder to lower the polishing wheel 5 to contact the lithium metal strip. At this time, the polishing wheel 5 is located at one end of the lithium metal strip. The polishing motor 52 and the servo motor on the ball screw assembly 32 are then activated. While the polishing wheel 5 rotates to polish the lithium metal strip, the servo motor drives the ball screw assembly 32 to rotate and causes the drive platform 33 connected to the moving seat of the ball screw assembly 32 to move horizontally, thereby moving the polishing wheel 5 along the lithium metal strip until the lithium metal strip is polished. After polishing is completed, the servo motor and polishing motor 52 are stopped, and the electric cylinder is activated again to raise the polishing wheel 5. At this time, the staff can remove the polished lithium metal strip and polish the next lithium metal battery.

[0023] The operator may also install a raising frame on the workbench 1 and install the X-axis driving device 3 on the raising frame 34 , thereby facilitating the installation and use of the Z-axis driving device 4 .

[0024] In another embodiment, a Y-axis drive device 6 is provided on the movable end of the Z-axis drive device 4. The Y-axis drive device 6 includes a slide rail 61, a slider 62, and a locking device 63. The slide rail 61 is provided on the movable end of the Z-axis drive device 4, and the slider 62 is slidably connected to the slide rail 61. The locking device 63 includes a locking frame, a locking block, and an adjusting wheel. The locking frame is slidably connected to the slide rail 61 and fixedly connected to the slider 62. Two locking blocks are provided and slidably connected to the locking frame. The two locking blocks are respectively located on either side of the slide rail 61 and are equidistant from the slide rail 61. The adjusting wheel is provided on one side of the locking frame and is used to adjust the distance between the two locking blocks and the slide rail 61. The sliding direction of the slider 62 is perpendicular to the driving direction of the X-axis drive device 3. The slider 62 is provided with a bracket, one end of which is rotatably connected to the polishing wheel 5 and the other end is fixedly connected to the polishing motor 51.

[0025] After completing the placement of the metal lithium belt, the staff can slide the slider 62 to move the slider 62 in the Y-axis direction, and then move the polishing wheel 5 in the Y-axis direction, so that the polishing wheel 5 is centered with the metal lithium belt to ensure the polishing quality. At this time, the adjusting wheel is rotated to make the two locking blocks move toward each other and make the two locking blocks contact the slide rail 61, so that the slider 62 can no longer slide freely on the slide rail 61, and the position of the polishing wheel 5 is fixed; when it is necessary to center again, the adjusting wheel can be rotated in the opposite direction to make the two locking blocks move away from each other. At this time, the slider 62 can slide freely and the staff can perform the centering operation.

[0026] In another embodiment, a gantry 7 is further provided at one end of the table top of the workbench 1. The two upright posts of the gantry 7 are respectively located on both sides of the polishing carrier 2. A rotating frame 72 is vertically provided on the crossbeam of the gantry 7. A rotating seat is provided at the top of the rotating frame 72, and a vertical sleeve 721 is provided at the bottom. A handle 73 is rotatably connected to the rotating seat. The handle 73 is composed of a short rod and a long rod that form an angle with each other. The end of the short rod away from the long rod is rotatably connected to the rotating seat. A connecting rod 74 is rotatably connected to the connection between the short rod and the long rod. The top is connected to the handle 73, and the bottom is rotatably connected to a lifting column 75. The lifting column 75 is sleeved in the sleeve 721, and the top of the lifting column 75 is connected to the connecting rod 74. The bottom is fixedly connected to the pressure plate 71. The bottom of the pressure plate 71 is provided with a pressure block 713. The two ends of the pressure plate 71 are provided with symmetrical through holes, and the through holes are provided with a limiting column 711. The bottom of the limiting column 711 is fixedly connected to the workbench 1, and the top is higher than the maximum height to which the pressure plate 71 can rise, thereby ensuring the stability of the pressure plate 71 and preventing the pressure plate 71 from shaking and deflecting. The limiting column 711 is also sleeved with a spring 712. The two ends of the spring 712 are respectively connected to the workbench 1 and the pressure plate 71, so that after the pressure plate 71 moves downward, it exerts a vertical upward force on the pressure plate 71.

[0027] After the staff has placed the metal lithium battery, they can pull the handle 73 to move the pressure plate 71 downward and make the pressure block 713 under the pressure plate 71 press one end of the metal lithium strip, thereby preventing the metal lithium battery from wrinkling during polishing. At this time, the short rod, connecting rod 74 and lifting column 75 on the handle 73 are on the same vertical line, and the vertical upward force of the spring 712 on the pressure plate 71 is transmitted upward in sequence from the lifting column 75, and is finally blocked by the rotating seat above the short rod, and the various components do not move; when the metal lithium battery is polished, the staff resets the handle 73 to make the pressure plate 71 rise, so that the metal lithium strip can be taken out. When resetting the handle 73, when the staff pulls the handle 73, the short rod and the connecting rod 74 have an angle, and the active seat can no longer block the force of the spring 712, and the pressure plate 71 will rise quickly and reset the handle 73 quickly.

[0028] In another embodiment, a quick-change base plate is also provided, which is positioned and connected to the table top of the workbench 1 by pins, and the polishing carrier plate 2 is clamped on the quick-change base plate. Therefore, when polishing a metal lithium belt, the staff can place the new metal lithium belt to be polished flat on another polishing carrier plate 2 and install the polishing carrier plate 2 on another quick-change base plate. After the polishing of the metal lithium belt on the workbench 1 is completed, the staff can quickly replace the quick-change base plate to improve the work efficiency of polishing the metal lithium belt.

[0029] In another embodiment, an electronic control panel is further provided on the workbench 1 , and the electronic control panel is electrically connected to the Z-axis drive device 4 , the X-axis drive device 3 and the polishing motor 51 , thereby facilitating operation by the operator.

[0030] The above description is only a preferred embodiment of the present invention, not all embodiments. Anyone should be aware that any structural changes made under the inspiration of the present invention, and any technical solutions that are the same or similar to those of the present invention, fall within the scope of protection of the present invention.

Claims

1. A metal lithium belt polishing device, characterized in that: The invention comprises a workbench (1), wherein a polishing carrier plate (2) and an X-axis driving device (3) are provided on the workbench (1), wherein the X-axis driving device (3) is provided on one side of the polishing carrier plate (2), wherein the driving direction of the X-axis driving device (3) is consistent with the length direction of the polishing carrier plate (2), wherein a Z-axis driving device (4) is provided on the movable end of the X-axis driving device (3), wherein a polishing wheel (5) rotatably connected to the Z-axis driving device (4) is provided on the movable end of the Z-axis driving device (4), wherein the polishing wheel (5) is opposite to the polishing carrier plate (2), and wherein the Z-axis driving device (4) is further provided with a polishing motor (51) for driving the polishing wheel (5).

2. A metal lithium strip polishing device as claimed in claim 1, characterized in that: A Y-axis driving device (6) is provided on the movable end of the Z-axis driving device (4), and the polishing wheel (5) and the polishing motor (51) are provided on the movable end of the Y-axis driving device (6).

3. A metal lithium strip polishing device as claimed in claim 2, characterized in that: The Y-axis driving device (6) comprises a slide rail (61), a slider (62) and a locking device (63); the slide rail (61) is arranged on the movable end of the Z-axis driving device (4); the slider (62) and the locking device (63) are slidably connected to the slide rail (61); the locking device (63) is fixedly connected to the slider (62); the locking device (63) is used to temporarily fix the slider (62) on the slide rail (61); the sliding direction of the slider (62) is perpendicular to the driving direction of the X-axis driving device (3); the polishing wheel (5) is rotationally connected to the slider (62); the polishing motor (51) is arranged on the slider (62) and is drivingly connected to the polishing wheel (5).

4. A metal lithium strip polishing device as claimed in claim 1, characterized in that: A gantry (7) is also provided on the workbench (1), and two upright posts of the gantry (7) are respectively located on both sides of the polishing carrier plate (2). A vertical lifting assembly is provided on the crossbeam of the gantry (7), and a pressing plate (71) is provided at the bottom of the vertical lifting assembly.

5. A metal lithium strip polishing device as claimed in claim 4, characterized in that: The vertical lifting assembly comprises a rotating frame (72), a handle (73), a connecting rod (74) and a lifting column (75); the rotating frame (72) is vertically arranged on the crossbeam of the gantry (7); a rotating seat is arranged at the top of the rotating frame (72), and a sleeve (721) is arranged at the bottom; the handle (73) comprises a short rod and a long rod, a certain angle is formed between the short rod and the long rod, and one end of the short rod away from the long rod is rotatably connected to the rotating seat; the top of the connecting rod (74) is rotatably connected to the connection between the long rod and the short rod; the bottom of the connecting rod (74) is rotatably connected to the top of the lifting column (75); the lifting column (75) is sleeved in the sleeve (721) and slidably connected to the sleeve (721); the pressing plate (71) is arranged at the bottom of the lifting column (75).

6. A metal lithium strip polishing device as claimed in claim 5, characterized in that: Through holes are provided at both ends of the pressure plate (71), and a limiting column (711) is sleeved in the through hole. The limiting column (711) is slidably connected to the through hole, and the bottom of the limiting column (711) is fixedly connected to the workbench (1). The height of the limiting column (711) is greater than the maximum height of the pressure plate (71) to rise. A spring (712) is sleeved on the outer side of the limiting column (711), one end of the spring (712) is connected to the pressure plate (71), and the other end is connected to the workbench (1). A pressure block (713) is provided at the bottom of the pressure plate (71).

7. A metal lithium strip polishing device as claimed in claim 1, characterized in that: The X-axis driving device (3) comprises a guide rail (31), a ball screw assembly (32) and a driving platform (33); the guide rail (31) is arranged on the workbench (1), the ball screw assembly (32) is arranged on one side of the guide rail (31), the bottom of the driving platform (33) is slidably connected to the guide rail (31), one side of the driving platform (33) is drivingly connected to the ball screw assembly (32), and a servo motor for driving the ball screw assembly (32) is arranged on the ball screw assembly (32).

Images