Lithium battery tab bending device

Abstract

The utility model relates to the technical field of bending equipment, and discloses a lithium battery tab bending device which comprises a base, and two groups of sliding rails are arranged at the top of the base. According to the lithium battery tab bending device, through the arrangement of the driving mechanism, the placing plate and the bending mechanism, during bending, a lithium battery body is fixed to the placing plate, then a servo motor on one side is started, and the servo motor drives a positive and negative lead screw on one side to rotate; then, two groups of supporting plates in threaded connection with the surfaces of the positive and negative screw rods move towards a placement plate in the middle until bending blocks arranged on the surfaces of the supporting plates move to the positions over tabs on the two sides of a lithium battery main body on the top surface of the placement plate, and finally, a hydraulic cylinder is started and drives the bending blocks on piston rods at the bottom to move downwards; according to the lithium battery tab bending device, the tabs right below are bent by 90 degrees, the tabs on the two sides of the lithium battery body can be bent at the same time, the efficiency is higher compared with traditional one-way bending, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bending equipment, in particular to a lithium battery tab bending device. Background Art

[0002] The tab is a raw material for lithium-ion polymer battery products. For example, mobile phone batteries, Bluetooth batteries, laptop batteries, new energy vehicles, etc. that we use in our lives all need tabs. Batteries are divided into positive and negative poles. The tabs are metal conductors that lead the positive and negative poles out of the battery cells. Generally speaking, the tabs at the positive and negative poles of the battery are the contact points during charging and discharging. For soft-pack lithium-ion batteries, the tabs are an important part of lithium batteries. In order to match different products, the tabs need to be bent at a certain angle, so the tabs need to be bent.

[0003] At present, when bending the tab, it is mostly done manually in one direction, and then the lithium battery is turned over to bend the tab on the other side again. Manual bending is inefficient and labor-intensive, which restricts the processing of the tab and is not conducive to the production of lithium batteries. When the lithium battery is fixed, the tab is often deformed after being bent due to loose fixation, resulting in product waste. Therefore, a lithium battery tab bending device is proposed.

[0004] A lithium battery tab bending device disclosed in the publication number CN216939385U, although the lithium battery tab bending device belongs to the technical field of sampling devices, the utility model includes a bottom plate, the top of the bottom plate is fixedly connected to a fixed shell, the interior of the fixed shell is fixedly connected to an operating block, the interior of the operating block is provided with a pressing device, one side of the fixed shell is fixedly connected to a cutting mechanism, the top of the bottom plate is fixedly connected to a movable mechanism, the cutting mechanism includes a fixed plate, the fixed plate is fixedly connected to one side of the fixed shell, and the top of the fixed plate is fixedly connected to a motor. The utility model can prevent the tab from falling during the bending process by providing a cutting mechanism and a movable mechanism, the tab can be cut during operation, the bending equipment can effectively react when the material is too long, can effectively bend different materials, and the material does not need to be moved during the bending process, and is not prone to danger.

[0005] Although the above patent has achieved the goal of preventing the pole ears from falling off during the bending process by setting up a cutting mechanism and a movable mechanism, the pole ears can be cut during operation, the bending equipment can effectively respond when the material is too long, and different materials can be effectively bent. The material does not need to be moved during the bending process, and is not prone to danger; however, the device is not easy to bend the pole ears on both sides of the lithium battery at the same time, and can only be bent in one direction, resulting in low production efficiency.

[0006] Therefore, it is necessary to invent a lithium battery tab bending device to solve the above problems. Utility Model Content

[0007] 1. Technical issues to be resolved

[0008] The technical problem solved by the utility model is to provide a lithium battery tab bending device which is highly practical, can be simply operated and has a relatively simple structure, thereby solving the problem in the above background technology that it is not easy to simultaneously bend the tabs on both sides of the lithium battery.

[0009] (II) Technical solution

[0010] To achieve the above objectives, the utility model is implemented through the following technical solutions: a lithium battery ear bending device, comprising a base, two sets of slide rails are provided on the top of the base, two sets of support plates are slidably connected inside the slide rails, an edge on one side of the top of the base is threadedly connected to a motor box, a driving mechanism is fixedly connected inside the motor box, one side of the driving mechanism is fixedly connected to positive and negative screw rods, a placement plate is fixedly connected to the middle of the top surface of the base, a lithium battery body is placed on the top of the placement plate, a pressure plate is overlapped on the top of the lithium battery body, one side of the pressure plate is fixedly connected to a power mechanism, one side of the support plate is fixedly connected to a bending mechanism, and the bottom of the bending mechanism is fixedly connected to a bending block.

[0011] As a further solution of the utility model, the driving mechanism includes a servo motor fixedly connected to the inside of the motor box, the output end of the servo motor is splined to a transmission rod, and one side of the forward and reverse screw rods is fixedly connected to one end of the transmission rod.

[0012] As a further solution of the utility model, the power mechanism includes a driving gear fixedly connected to one side of the pressure plate, a transmission chain is meshed on the surface of the driving gear, one end of the transmission chain is fixedly connected to a hydraulic rod, and the hydraulic rod is fixedly connected to the top of the placement plate.

[0013] As a further solution of the utility model, the bending mechanism includes two groups of hydraulic cylinders fixedly connected to one side of the support plate, the bottom of the hydraulic cylinder is slidably connected to a piston rod, and the bending block is fixedly connected to the bottom of the piston rod.

[0014] As a further solution of the utility model, a limiting hole is provided on the surface of the support plate, and a limiting rod is inserted into the limiting hole.

[0015] As a further solution of the utility model, four groups of threaded holes are opened on the surface of the motor box, and the internal threads of the threaded holes are connected with threaded columns.

[0016] As a further solution of the utility model, four groups of threaded holes are opened on the surface of the base, and bolts are connected to the internal threads of the threaded holes.

[0017] (III) Beneficial effects

[0018] The utility model provides a lithium battery tab bending device, which has the following beneficial effects:

[0019] 1. The lithium battery ear bending device, through the arrangement of the driving mechanism, the placement plate and the bending mechanism, fixes the lithium battery body on the placement plate during bending, and then starts the servo motor on one side, which drives the positive and negative screws on one side to rotate, thereby causing the two groups of support plates threadedly connected on the surfaces of the positive and negative screws to move toward the placement plate in the middle, until the bending blocks arranged on the surface of the support plates move to just above the ear tabs on both sides of the lithium battery body on the top surface of the placement plate, and finally starts the hydraulic cylinder, which drives the bending block on the bottom piston rod to move downward, and performs a 90-degree bending process on the ear tabs just below, and can simultaneously bend the ear tabs on both sides of the lithium battery body, which is more efficient than traditional single-direction bending and improves production efficiency.

[0020] 2. The lithium battery ear bending device, through the setting of the power mechanism and the pressure plate, places the lithium battery body on the surface of the placement plate during fixation, and then starts the hydraulic rod on one side, which drives the transmission chain on one side to move forward, so that the driving gear on the surface of the transmission chain rotates, and then drives the pressure plate on the side of the driving gear to rotate until the pressure plate can be firmly attached to the surface of the lithium battery body, thereby avoiding the deformation of the lithium battery body after the ear is bent due to loose fixation, resulting in waste of products. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the driving mechanism of the utility model;

[0023] Figure 3 This is a schematic diagram of the power mechanism structure of the utility model;

[0024] Figure 4 It is a schematic diagram of the bending mechanism structure of the utility model.

[0025] In the figure: 1. base; 2. slide rail; 3. support plate; 4. motor box; 5. driving mechanism; 501. servo motor; 502. transmission rod; 6. forward and reverse screw rods; 7. placement plate; 8. lithium battery body; 9. pressure plate; 10. power mechanism; 1001. driving gear; 1002. transmission chain; 1003. hydraulic rod; 11. bending mechanism; 1101. hydraulic cylinder; 1102. piston rod; 12. bending block; 13. limit rod; 14. threaded column; 15. bolt. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figures 1 to 4 The utility model provides a technical solution: a lithium battery ear bending device, comprising a base 1, two sets of slide rails 2 are provided on the top of the base 1, two sets of support plates 3 are slidably connected inside the slide rails 2, an edge of one side of the top of the base 1 is threadedly connected to a motor box 4, a driving mechanism 5 is fixedly connected inside the motor box 4, and the driving mechanism 5, a placement plate 7 and a bending mechanism 11 are arranged, compared with the traditional single-direction bending efficiency, the production efficiency is improved, one side of the driving mechanism 5 is fixedly connected to a positive and negative screw rod 6, a placement plate 7 is fixedly connected to the middle of the top surface of the base 1, a lithium battery body 8 is placed on the top of the placement plate 7, a pressure plate 9 is overlapped on the top of the lithium battery body 8, and a power mechanism 10 is fixedly connected to one side of the pressure plate 9. Through the arrangement of the power mechanism 10 and the pressure plate 9, the lithium battery body 8 is prevented from being deformed after the ear is bent due to loose fixation, resulting in waste of products, a bending mechanism 11 is fixedly connected to one side of the support plate 3, and a bending block 12 is fixedly connected to the bottom of the bending mechanism 11;

[0028] See also Figure 2 The driving mechanism 5 includes a servo motor 501 fixedly connected to the inside of the motor box 4, the output end of the servo motor 501 is spline-connected to a transmission rod 502, and one side of the forward and reverse screw rod 6 is fixedly connected to one end of the transmission rod 502;

[0029] See also Figure 3 The power mechanism 10 includes a driving gear 1001 fixedly connected to one side of the pressure plate 9, a transmission chain 1002 is meshed on the surface of the driving gear 1001, one end of the transmission chain 1002 is fixedly connected to a hydraulic rod 1003, and the hydraulic rod 1003 is fixedly connected to the top of the placement plate 7;

[0030] See also Figure 4The bending mechanism 11 includes two groups of hydraulic cylinders 1101 fixedly connected to one side of the support plate 3, the bottom of the hydraulic cylinder 1101 is slidably connected to a piston rod 1102, and the bending block 12 is fixedly connected to the bottom of the piston rod 1102;

[0031] See also Figure 1 A limiting hole is provided on the surface of the support plate 3, and a limiting rod 13 is inserted into the limiting hole;

[0032] See also Figure 2 The surface of the motor box 4 is provided with four groups of threaded holes, and the internal threads of the threaded holes are connected with threaded columns 14.

[0033] See also Figure 1 The surface of the base 1 is provided with four groups of threaded holes, and the internal threads of the threaded holes are connected with bolts 15.

[0034] In the utility model, the working steps of the device are as follows:

[0035] The first step: when bending, fix the lithium battery body 8 on the placement plate 7, and then start the servo motor 501 on one side, the servo motor 501 drives the positive and negative screws 6 on one side to rotate, so that the two groups of support plates 3 threadedly connected on the surface of the positive and negative screws 6 move toward the middle placement plate 7, until the bending block 12 set on the surface of the support plate 3 moves to the top of the pole ears on both sides of the lithium battery body 8 on the top surface of the placement plate 7, and finally start the hydraulic cylinder 1101, the hydraulic cylinder 1101 drives the bending block 12 on the bottom piston rod 1102 to move downward, and the pole ears directly below are bent at 90 degrees, and the pole ears on both sides of the lithium battery body 8 can be bent at the same time;

[0036] The second step: when fixing, place the lithium battery body 8 on the surface of the placement plate 7, and then start the hydraulic rod 1003 on one side. The hydraulic rod 1003 drives the transmission chain 1002 on one side to move forward, so that the driving gear 1001 on the surface of the transmission chain 1002 rotates, and then drives the pressure plate 9 on the side of the driving gear 1001 to rotate until the pressure plate 9 can firmly cling to the surface of the lithium battery body 8.

[0037] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0038] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lithium battery tab bending device, comprising a base (1), characterized in that: Two groups of slide rails (2) are provided on the top of the base (1), and two groups of support plates (3) are slidably connected inside the slide rails (2). A motor box (4) is threadedly connected to the edge of one side of the top of the base (1), and a driving mechanism (5) is fixedly connected inside the motor box (4). One side of the driving mechanism (5) is fixedly connected to a forward and reverse screw rod (6). A placement plate (7) is fixedly connected to the middle of the top surface of the base (1), and a lithium battery body (8) is placed on the top of the placement plate (7). A pressure plate (9) is overlapped on the top of the lithium battery body (8), and one side of the pressure plate (9) is fixedly connected to a power mechanism (10). A bending mechanism (11) is fixedly connected to one side of the support plate (3), and a bending block (12) is fixedly connected to the bottom of the bending mechanism (11).

2. A lithium battery tab bending device according to claim 1, characterized in that: The driving mechanism (5) comprises a servo motor (501) fixedly connected to the inside of the motor box (4); the output end of the servo motor (501) is spline-connected to a transmission rod (502); and one side of the forward and reverse screw rod (6) is fixedly connected to one end of the transmission rod (502).

3. A lithium battery tab bending device according to claim 1, characterized in that: The power mechanism (10) comprises a driving gear (1001) fixedly connected to one side of the pressure plate (9), a transmission chain (1002) meshing on the surface of the driving gear (1001), one end of the transmission chain (1002) fixedly connected to a hydraulic rod (1003), and the hydraulic rod (1003) fixedly connected to the top of the placement plate (7).

4. The lithium battery tab bending device according to claim 1, characterized in that: The bending mechanism (11) comprises two groups of hydraulic cylinders (1101) fixedly connected to one side of the support plate (3), the bottom of the hydraulic cylinder (1101) is slidably connected to a piston rod (1102), and the bending block (12) is fixedly connected to the bottom of the piston rod (1102).

5. The lithium battery tab bending device according to claim 1, characterized in that: A limiting hole is provided on the surface of the support plate (3), and a limiting rod (13) is inserted into the interior of the limiting hole.

6. A lithium battery tab bending device according to claim 1, characterized in that: Four groups of threaded holes are provided on the surface of the motor box (4), and threaded columns (14) are connected to the inner threads of the threaded holes.

7. The lithium battery tab bending device according to claim 1, characterized in that: Four groups of threaded holes are provided on the surface of the base (1), and bolts (15) are connected to the internal threads of the threaded holes.

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