Lithium battery cap pressure welding device

Abstract

The utility model provides a lithium battery cap pressure welding device, and belongs to the technical field of lithium battery processing. The lithium battery cap pressure welding device comprises a workbench and a pressing plate, a clamping mechanism is arranged on the workbench and comprises a fixing disc, a lead screw, a limiting rod, a sliding block and a clamping plate, and the fixing disc is fixedly connected to the top of the workbench; the lead screw is rotationally connected with the fixing disc through a bearing. The limiting rod is fixedly connected to the inner side of the fixed disc; the sliding block is in threaded connection with the lead screw, and the sliding block is in sliding connection with the limiting rod; the clamping plates are fixedly connected with the sliding blocks, the clamping plates are arranged to be arc-shaped, the three clamping plates are annularly arranged at equal intervals, the three lead screws are driven to rotate at the same time, under the limitation of the limiting rods, the sliding blocks are made to get close to the lithium battery along the limiting rods, and then the three clamping plates are driven to clamp and fix the lithium battery in the fixing disc; the fixing effect is good, and normal pressure welding work of the lithium battery is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery processing, in particular to a lithium battery cap pressure welding device. Background Art

[0002] Lithium battery is an electrochemical energy storage device widely used in mobile electronic devices, electric vehicles, energy storage systems and other fields. It is a rechargeable battery that uses lithium ions as charge carriers. Lithium batteries have the advantages of high energy density, long cycle life and light weight. Therefore, they have become one of the main energy sources for modern electronic devices and vehicles. The basic structure of lithium batteries includes positive electrode, negative electrode, electrolyte and separator. Among them, the positive electrode usually uses oxides, such as lithium manganese oxide, lithium cobalt oxide or lithium iron phosphate; the negative electrode usually uses graphite or graphite-like materials to embed and release lithium ions; the electrolyte is a liquid that can conduct ions. The diaphragm is used to prevent the positive and negative electrodes from directly contacting each other, but allows the passage of lithium ions. The working principle of lithium batteries is that when charging, lithium ions are released from the positive electrode and move to the negative electrode through the electrolyte to be embedded; when discharging, lithium ions are released from the negative electrode and move to the positive electrode through the electrolyte to be embedded. This movement of lithium ions between the positive and negative electrodes forms an electric current, thereby realizing the storage and release of energy. The lithium battery cap welding device is one of the equipment used to manufacture lithium batteries. Its main function is to weld the cap of the lithium battery to the shell to ensure the sealing and safety of the battery.

[0003] The existing lithium battery cap welding device is difficult to clamp the lithium battery placed below, and the lithium battery is prone to shift during the subsequent welding process, affecting the normal welding operation of the lithium battery. Therefore, we propose a lithium battery cap welding device to solve the above problem. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides a lithium battery cap pressure welding device that overcomes the above technical problems or at least partially solves the above problems.

[0005] The utility model provides a lithium battery cap pressure welding device, comprising

[0006] A workbench and a pressing plate, wherein the workbench is provided with a clamping mechanism, and the clamping mechanism comprises

[0007] A fixed plate, the fixed plate is fixedly connected to the top of the workbench;

[0008] A screw rod, the screw rod is rotatably connected to the fixed plate through a bearing;

[0009] A limiting rod, wherein the limiting rod is fixedly connected to the inner side of the fixing plate;

[0010] A slider, wherein the slider is threadedly connected to the screw rod, and the slider is slidably connected to the limit rod;

[0011] A clamping plate is fixedly connected to the sliding block.

[0012] In a preferred solution, the clamping plate is arranged in an arc shape, and three clamping plates are provided, and the three clamping plates are arranged in a ring shape with equal distances.

[0013] In a preferred solution, a motor is fixedly connected to the top of the workbench, a driving shaft is fixedly connected to the output end of the motor, a driven shaft is rotatably connected to the workbench, both the driving shaft and the driven shaft are fixedly connected to pulleys, and a transmission belt is connected between the two pulleys.

[0014] In a preferred solution, the other end of the driven shaft is fixedly connected to a first bevel gear, the outer wall of the screw rod is fixedly connected to a second bevel gear, and the second bevel gear is meshingly connected to the first bevel gear.

[0015] In a preferred solution, two clamping mechanisms are provided, and the two clamping mechanisms are symmetrically arranged on the left and right.

[0016] In a preferred solution, a bracket is arranged above the workbench, a hydraulic telescopic rod is fixedly connected to the top of the bracket, and the pressing plate is fixedly connected to the telescopic end of the hydraulic telescopic rod.

[0017] In a preferred solution, a steering mechanism is provided between the workbench and the bracket, the steering mechanism comprises a cylinder and a turntable, and the bracket is fixedly connected to the top of the turntable.

[0018] In a preferred solution, the cylinder is fixedly connected to the top of the workbench, and the telescopic end of the cylinder is fixedly connected to a toothed plate.

[0019] In a preferred solution, a rotating shaft is fixedly connected to the bottom of the turntable, the rotating shaft is rotatably connected to the workbench, and a first gear is fixedly connected to the outer wall of the rotating shaft, and the first gear is meshingly connected to the gear plate.

[0020] The utility model provides a lithium battery cap pressure welding device, and its beneficial effects include:

[0021] 1. By driving the three screws to rotate at the same time, under the restriction of the limit rod, the slider moves along the limit rod close to the lithium battery, and then drives the three clamping plates to clamp and fix the lithium battery in the fixed plate. The fixing effect is good, ensuring the normal pressure welding of the lithium battery.

[0022] 2. By starting the cylinder, the telescopic end of the cylinder drives the toothed plate to move, the toothed plate drives the first gear to rotate, the first gear drives the rotating shaft to rotate, the rotating shaft drives the turntable to rotate, and then drives the bracket and the pressure plate to turn, so that after completing the pressure welding of one lithium battery cap, the lithium battery cap on the other side can be pressure welded immediately, which improves the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a three-dimensional diagram of the overall structure provided by the embodiment of the utility model;

[0025] Figure 2 A schematic diagram of a top view of the clamping mechanism provided in an embodiment of the utility model;

[0026] Figure 3 A bottom view structural diagram of a clamping mechanism provided in an embodiment of the utility model;

[0027] Figure 4 A schematic diagram of the structure of a steering mechanism provided in an embodiment of the utility model;

[0028] In the figure: 1. workbench; 2. clamping mechanism; 201. fixed plate; 202. screw rod; 203. limit rod; 204. slider; 205. clamping plate; 206. motor; 207. driving shaft; 208. driven shaft; 209. pulley; 210. transmission belt; 211. first bevel gear; 212. second bevel gear; 3. steering mechanism; 301. cylinder; 302. gear plate; 303. rotating shaft; 304. first gear; 305. turntable; 4. pressure plate; 5. bracket; 6. hydraulic telescopic rod. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Reference Figure 1-Figure 4The utility model provides a technical solution: a lithium battery cap pressure welding device, including a workbench 1 and a pressure plate 4, a clamping mechanism 2 is arranged on the workbench 1, and the clamping mechanism 2 includes a fixed plate 201, a screw rod 202, a limit rod 203, a slider 204 and a clamping plate 205, the fixed plate 201 is fixedly connected to the top of the workbench 1; the screw rod 202 is rotatably connected to the fixed plate 201 through a bearing; the limit rod 203 is fixedly connected to the inner side of the fixed plate 201; the slider 204 is threadedly connected to the screw rod 202, and the slider 204 is threadedly connected to the screw rod 202. The block 204 is slidably connected to the limit rod 203; the clamping plate 205 is fixedly connected to the slider 204, the clamping plate 205 is set in an arc shape, and there are three clamping plates 205, which are arranged in a ring with equal distances. By driving the three screw rods 202 to rotate at the same time, under the restriction of the limit rod 203, the slider 204 is moved along the limit rod 203 to approach the lithium battery, thereby driving the three clamping plates 205 to clamp and fix the lithium battery in the fixed plate 201, and the fixing effect is good, ensuring the normal pressure welding of the lithium battery;

[0031] In a preferred embodiment, a motor 206 is fixedly connected to the top of the workbench 1, and a driving shaft 207 is fixedly connected to the output end of the motor 206. A driven shaft 208 is rotatably connected to the workbench 1. The driving shaft 207 and the driven shaft 208 are both fixedly connected to a pulley 209. A transmission belt 210 is transmission-connected between the two pulleys 209. The other end of the driven shaft 208 is fixedly connected to a first bevel gear 211. A second bevel gear 212 is fixedly connected to the outer wall of the screw rod 202. The second bevel gear 212 is meshingly connected with the first bevel gear 211. By starting the motor 206, the output end of the motor 206 drives the driving shaft 207 to rotate, and the driving shaft 207 drives the pulley 209 to rotate. Under the transmission of the pulley 209 and the transmission belt 210, the first bevel gear 211 rotates, and the first bevel gear 211 drives the second bevel gear 212 to rotate, thereby driving the three screw rods 202 to rotate synchronously, and the motor 206 is electrically connected to an external power supply.

[0032] In a preferred embodiment, two clamping mechanisms 2 are provided, and the two clamping mechanisms 2 are provided symmetrically. By providing two clamping mechanisms 2, when pressure welding is performed on a lithium battery cap, another clamping mechanism 2 can be used to clamp and fix another lithium battery;

[0033] In a preferred embodiment, a bracket 5 is provided above the workbench 1, a hydraulic telescopic rod 6 is fixedly connected to the top of the bracket 5, and a pressing plate 4 is fixedly connected to the telescopic end of the hydraulic telescopic rod 6. By starting the hydraulic telescopic rod 6, the telescopic end of the hydraulic telescopic rod 6 drives the pressing plate 4 to descend, and the pressing plate 4 performs pressure welding on the lithium battery cap;

[0034] In a preferred embodiment, a steering mechanism 3 is arranged between the workbench 1 and the bracket 5, and the steering mechanism 3 includes a cylinder 301 and a turntable 305. The bracket 5 is fixedly connected to the top of the turntable 305, and the cylinder 301 is fixedly connected to the top of the workbench 1. The telescopic end of the cylinder 301 is fixedly connected to a toothed plate 302, and the bottom of the turntable 305 is fixedly connected to a rotating shaft 303, which is rotatably connected to the workbench 1, and the outer wall of the rotating shaft 303 is fixedly connected to a first gear 304, which is meshed with the toothed plate 302. By starting the cylinder 301, the telescopic end of the cylinder 301 drives the toothed plate 302 to move, and the toothed plate 302 drives the first gear 304 to rotate, and the first gear 304 drives the rotating shaft 303 to rotate, and the rotating shaft 303 drives the turntable 305 to rotate, thereby driving the bracket 5 and the pressure plate 4 to turn, so that after completing the pressure welding of one lithium battery cap, the lithium battery cap on the other side can be pressure welded immediately, thereby improving the processing efficiency.

[0035] Specifically, the working process or working principle of the lithium battery cap welding device is as follows: the staff puts the lithium battery on the fixed disk 201, and then starts the motor 206. The output end of the motor 206 drives the driving shaft 207 to rotate, and the driving shaft 207 drives the pulley 209 to rotate. Under the transmission of the pulley 209 and the transmission belt 210, the first bevel gear 211 rotates, and the first bevel gear 211 drives the second bevel gear 212 to rotate, and then drives the three screw rods 202 to rotate synchronously. Under the restriction of the limit rod 203, the slider 204 is moved close to the lithium battery along the limit rod 203, and then drives the three clamps 205 to clamp and fix the lithium battery in the fixed disk 201.

[0036] Then, the hydraulic telescopic rod 6 is started, and the telescopic end of the hydraulic telescopic rod 6 drives the pressure plate 4 to descend, and the pressure plate 4 pressure welds the lithium battery cap. In this process, another clamping mechanism 2 is used to clamp and fix another lithium battery. Then, the cylinder 301 is started, and the telescopic end of the cylinder 301 drives the tooth plate 302 to move, and the tooth plate 302 drives the first gear 304 to rotate, and the first gear 304 drives the rotating shaft 303 to rotate, and the rotating shaft 303 drives the turntable 305 to rotate, thereby driving the bracket 5 and the pressure plate 4 to turn, so that after completing the pressure welding of one lithium battery cap, the lithium battery cap on the other side can be pressure welded immediately, thereby improving the processing efficiency.

Claims

1. A lithium battery cap welding device, It is characterized in that The invention comprises a workbench (1) and a pressing plate (4), wherein the workbench (1) is provided with a clamping mechanism (2), and the clamping mechanism (2) comprises A fixed plate (201), wherein the fixed plate (201) is fixedly connected to the top of the workbench (1); A screw rod (202), wherein the screw rod (202) is rotatably connected to the fixed plate (201) via a bearing; A limiting rod (203), wherein the limiting rod (203) is fixedly connected to the inner side of the fixing plate (201); A slider (204), wherein the slider (204) is threadedly connected to the screw rod (202), and the slider (204) is slidably connected to the limit rod (203); A clamping plate (205), wherein the clamping plate (205) is fixedly connected to the sliding block (204).

2. A lithium battery cap pressure welding device according to claim 1, It is characterized in that The clamping plate (205) is arranged in an arc shape, and three clamping plates (205) are arranged, and the three clamping plates (205) are arranged in a ring shape and at equal intervals.

3. A lithium battery cap welding device according to claim 2, It is characterized in that The top of the workbench (1) is fixedly connected to a motor (206), the output end of the motor (206) is fixedly connected to a driving shaft (207), the workbench (1) is rotatably connected to a driven shaft (208), the driving shaft (207) and the driven shaft (208) are both fixedly connected to pulleys (209), and a transmission belt (210) is connected between the two pulleys (209).

4. A lithium battery cap pressure welding device according to claim 3, It is characterized in that The other end of the driven shaft (208) is fixedly connected to a first bevel gear (211), the outer wall of the screw rod (202) is fixedly connected to a second bevel gear (212), and the second bevel gear (212) is meshingly connected to the first bevel gear (211).

5. A lithium battery cap pressure welding device according to claim 4, It is characterized in that Two clamping mechanisms (2) are provided, and the two clamping mechanisms (2) are symmetrically arranged on the left and right.

6. A lithium battery cap pressure welding device according to claim 5, It is characterized in that A bracket (5) is arranged above the workbench (1), a hydraulic telescopic rod (6) is fixedly connected to the top of the bracket (5), and the pressing plate (4) is fixedly connected to the telescopic end of the hydraulic telescopic rod (6).

7. A lithium battery cap pressure welding device according to claim 6, It is characterized in that A steering mechanism (3) is provided between the workbench (1) and the bracket (5), the steering mechanism (3) comprising a cylinder (301) and a turntable (305), and the bracket (5) is fixedly connected to the top of the turntable (305).

8. A lithium battery cap pressure welding device according to claim 7, It is characterized in that The cylinder (301) is fixedly connected to the top of the workbench (1), and the telescopic end of the cylinder (301) is fixedly connected to a toothed plate (302).

9. A lithium battery cap pressure welding device according to claim 8, It is characterized in that The bottom of the rotating disk (305) is fixedly connected to a rotating shaft (303), and the rotating shaft (303) is rotatably connected to the workbench (1). The outer wall of the rotating shaft (303) is fixedly connected to a first gear (304), and the first gear (304) is meshingly connected to the toothed plate (302).

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