Clamp for lithium battery production and assembly

Abstract

The utility model relates to the technical field of lithium battery production, in particular to a clamp for producing and assembling a lithium battery. Comprising a bottom plate, a side plate is fixedly arranged on one side of the bottom plate, a clamping mechanism is arranged on one side of the side plate, the clamping mechanism clamps a shell, a feeding mechanism is arranged above the bottom plate, and a first electric telescopic rod drives the feeding mechanism to descend so that the feeding mechanism can feed electrode slices into the shell. According to the device, a worker places a shell on the bottom plate, then the first electric telescopic rod drives the clamping mechanism to clamp and fix the shell through the mounting frame, the worker adheres an electrode plate to the bottom of the sleeve, and the first electric telescopic rod drives the feeding mechanism to descend to drive the electrode plate to enter the shell; therefore, the electrode plate slowly falls into the bottom in the shell, and the electrode plate is prevented from deviating in the process of entering the shell.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery production technology, and more specifically, to a fixture for lithium battery production and assembly. Background Technology

[0002] Lithium-ion batteries are a type of battery that uses lithium metal or lithium alloy as the positive / negative electrode material and a non-aqueous electrolyte solution. A lithium-ion battery mainly consists of a casing, electrolyte, separator, positive / negative electrodes, and other auxiliary materials. The casing protects the internal structure of the lithium-ion battery. Due to the different characteristics of lithium-ion batteries, the materials used for the casing also vary. During the lithium-ion battery production process, workers need to assemble the casing, electrolyte, separator, positive / negative electrodes, and other materials to form the lithium-ion battery. To facilitate assembly, fixtures are typically used to assemble the casing, allowing workers to place the remaining structures and materials inside for subsequent assembly.

[0003] Existing lithium batteries, such as cylindrical lithium batteries, have a casing 4 that is cylindrical with one or both ends open. The electrode plates are located at both ends inside the casing 4 to facilitate contact between the electrode plates and the outside. During the assembly process, the casing 4 is usually in a vertical position. Then, an electrode plate is placed inside the casing 4. As the electrode plate falls to the bottom of the casing 4, the edges of the electrode plate easily rub against the inner wall of the casing 4 during its descent. This friction obstructs the fall at the contact point between the electrode plate and the inner wall, causing the electrode plate to deflect and become skewed. After falling to the bottom of the casing 4, the electrode sheet is in an inclined state. When the subsequent workers put the rest of the structure into the casing 4, it will squeeze the inclined electrode sheet, which will easily cause the electrode sheet to deform. This will affect the normal use of the subsequent electrode sheets and the assembly of lithium batteries. Therefore, the workers need to remove the casing 4 from the fixture and adjust the inclined electrode sheet inside the casing 4 so that the electrode sheet is flush with the bottom of the casing 4. The process of removing the casing 4 from the fixture, adjusting the electrode sheet, and then re-clamping the casing 4 back onto the fixture takes a long time, which reduces the efficiency of electrode sheet assembly. In view of this, we propose a fixture for lithium battery production assembly. Utility Model Content

[0004] The purpose of this invention is to provide a fixture for lithium battery production and assembly, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, one objective of this utility model is to provide a fixture for lithium battery production and assembly, including a base plate, a side plate fixedly disposed on one side of the base plate, the side plate being perpendicular to the base plate, a housing disposed on the upper side of the base plate, a vertically disposed mounting groove being formed at a position slightly above the middle of the vertical height of the side plate, a first electric telescopic rod fixedly disposed at the bottom of the mounting groove, a clamping mechanism disposed on one side of the side plate, the clamping mechanism clamping the housing, a feeding mechanism disposed above the base plate, the first electric telescopic rod driving the feeding mechanism to descend so that the feeding mechanism feeds the electrode sheet into the interior of the housing, the feeding mechanism including a mounting rod, an ejector block fixedly disposed at the lower end of the mounting rod, a sleeve slidably sleeved on the mounting rod, and an adhesive layer disposed at the bottom of the sleeve.

[0006] As a further improvement to this technical solution, the clamping mechanism includes two clamping plates symmetrically arranged on one side of the side plate, the outer shell is located between the two clamping plates, the end of the clamping plate away from the outer shell passes through the side plate and extends outward, the clamping plate is rotatably connected to the position where it intersects with the side plate, and a connecting rod is rotatably connected to the surfaces of the two clamping plates that are close to each other, the connecting rod being located on the side of the side plate away from the outer shell.

[0007] As a further improvement to this technical solution, the clamping mechanism also includes a second electric telescopic rod fixed to the side plate. The piston end of the second electric telescopic rod faces downward and is rotatably connected to a connecting frame. The ends of the two connecting rods away from the clamping plate are rotatably connected to the connecting frame.

[0008] As a further improvement to this technical solution, the feeding mechanism also includes an external compression spring movably sleeved on the outside of the mounting rod. A top plate is fixedly installed on the top of the mounting rod. The two ends of the external compression spring are respectively fixedly installed on the lower surface of the top plate and the top of the sleeve. A limit block is fixedly installed on the side of the side plate near the outer shell. The top of the limit block is on the same plane as the top of the outer shell.

[0009] As a further improvement to this technical solution, a mounting bracket is fixedly provided on the piston end of the first electric telescopic rod. One end of the mounting bracket passes through the mounting groove and extends outward. The other end of the mounting bracket is fixedly provided on the upper surface of the top plate. When the piston end of the first electric telescopic rod extends or retracts, it drives the mounting bracket to rise or fall, so that the mounting bracket drives the mounting rod to rise or fall.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This lithium battery production and assembly fixture allows workers to place the casing on a base plate, where a clamping mechanism holds and secures it. Then, workers attach electrode sheets to the bottom of a sleeve. A first electric telescopic rod drives a feeding mechanism to descend, drawing the electrode sheets into the casing. When the sleeve contacts the top of the casing, it stops descending. The first electric telescopic rod then drives a mounting rod and an ejector block to continue descending, causing the ejector block to press down on the electrode sheets, separating them from the sleeve. This allows the electrode sheets to fall smoothly into the bottom of the casing, preventing them from shifting during entry and facilitating subsequent lithium battery assembly, thus improving assembly efficiency. Attached Figure Description

[0012] Figure 1 This is one of the overall structural schematic diagrams of this utility model;

[0013] Figure 2 This is the second schematic diagram of the overall structure of this utility model;

[0014] Figure 3 This is a schematic cross-sectional view of the overall structure of this utility model;

[0015] Figure 4 This is a three-dimensional structural diagram of the assembly of the bottom plate and side plate of this utility model;

[0016] Figure 5 This is a three-dimensional structural diagram of the clamping mechanism and the feeding mechanism assembled in this utility model;

[0017] Figure 6 This is a cross-sectional view of the feeding mechanism in this utility model.

[0018] Figure 7 This is a three-dimensional structural diagram of the clamping mechanism in this utility model.

[0019] The meanings of the labels in the diagram are as follows:

[0020] 1. Base plate; 11. Side plate; 12. Mounting groove; 13. First electric telescopic rod; 14. Limiting block;

[0021] 2. Clamping mechanism; 21. Second electric telescopic rod; 22. Connecting rotating rod; 23. Clamping plate;

[0022] 3. Feeding mechanism; 31. Mounting rod; 32. Ejector block; 33. Sleeve; 34. External compression spring; 35. Mounting bracket;

[0023] 4. Outer shell. Detailed Implementation

[0024] 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.

[0025] Example 1

[0026] Please see Figure 1 - Figure 7 As shown, one of the objectives of this embodiment is to provide a fixture for lithium battery production assembly, including a base plate 1, a housing 4 disposed on the upper side of the base plate 1, a limiting groove being formed on the upper surface of the base plate 1 near the center, the bottom of the housing 4 being disposed in the limiting groove, the limiting groove being used to limit the position of the bottom of the housing 4 to prevent the bottom of the housing 4 from shaking, a side plate 11 being fixedly disposed on one side of the base plate 1, the side plate 11 being perpendicular to the base plate 1, the side plate 11 being vertically disposed, a vertically disposed mounting groove 12 being formed at the upper part of the vertical height of the side plate 11, a first electric telescopic rod 13 being fixedly disposed at the bottom of the mounting groove 12, a mounting bracket 35 being fixedly disposed at the piston end of the first electric telescopic rod 13, when the piston end of the first electric telescopic rod 13 extends or retracts, it drives the mounting bracket 35 to move up and down along the axial direction of the mounting groove 12.

[0027] A feeding mechanism 3 is installed above the base plate 1. The first electric telescopic rod 13 drives the feeding mechanism 3 to descend, causing the feeding mechanism 3 to feed the electrode sheet into the interior of the outer shell 4. The feeding mechanism 3 includes a mounting rod 31, with an ejector block 32 fixedly installed at the lower end of the mounting rod 31. A sleeve 33 is slidably fitted on the mounting rod 31. An adhesive layer, which is silicone tape, is provided at the bottom of the sleeve 33. The adhesive layer is used to adhere the electrode sheet to the bottom of the sleeve 33. After prolonged use, the adhesive layer will become less sticky. At this time, the worker will remove the old adhesive layer and reapply a new adhesive layer to facilitate subsequent adhesion of the electrode sheet. At the same time, a storage groove is provided on the lower side of the sleeve 33. The shape of the silicone layer is the same as the shape of the bottom of the sleeve 33. The adhesive layer has a channel for the ejector block 32 to pass through at the position of the receiving groove. The feeding mechanism 3 also includes an external compression spring 34 movably sleeved on the outside of the mounting rod 31. A top plate is fixedly installed on the top of the mounting rod 31. One end of the mounting bracket 35 passes through the mounting groove 12 and extends outward. One end of the mounting bracket 35 is fixedly installed on the upper surface of the top plate. The two ends of the external compression spring 34 are respectively fixedly installed on the lower surface of the top plate and the top of the sleeve 33. The external compression spring 34 pushes the sleeve 33 downward so that the ejector block 32 can be in the receiving groove, so that the electrode sheet can adhere to the adhesive layer. A limit block 14 is fixedly installed on the side of the side plate 11 near the outer shell 4. When the outer shell 4 is placed on the bottom plate 1, the upper side of the limit block 14 is on the same plane as the top of the outer shell 4.

[0028] In use, the feeding mechanism 3 is located on the upper side of the outer casing 4. At this time, the ejector block 32 is located inside the receiving groove. The operator attaches the electrode sheet to the bottom of the sleeve 33. Then, the piston end of the first electric telescopic rod 13 retracts, causing the mounting bracket 35 and the mounting rod 31 to descend. During the descent, the mounting rod 31 drives the sleeve 33 into the interior of the outer casing 4. When the sleeve 33 contacts the limiting block 14, the limiting block 14 blocks the descent of the sleeve 33. At this time, the electrode sheet is located near the bottom of the outer casing 4. Then, the mounting rod 31 continues... As the plate continues to descend, the external compression spring 34 gradually contracts, bringing the top plate closer to the sleeve 33. During the downward movement of the top plate, the mounting rod 31 drives the ejector block 32 to move downward in the receiving groove, bringing the ejector block 32 closer to and pushing down the electrode sheet. After the ejector block 32 pushes the electrode sheet off the adhesive layer, the electrode sheet moves downward to the bottom of the outer casing 4, thus avoiding the electrode sheet from tilting due to friction between the electrode sheet and the inner wall of the outer casing 4 during the process of inserting it into the outer casing 4, ensuring the normal assembly of the subsequent electrode sheet and lithium battery.

[0029] To ensure that the feeding mechanism 3 can stably feed the electrode sheet into the housing 4, a clamping mechanism 2 is provided on one side of the side plate 11. The clamping mechanism 2 clamps the housing 4 to improve its stability. The clamping mechanism 2 includes two clamping plates 23 symmetrically arranged on one side of the side plate 11. The housing 4 is located between the two clamping plates 23. The end of the clamping plate 23 away from the housing 4 passes through the side plate 11 and extends outward. The clamping plate 23 is rotatably connected to the side plate 11 at the intersection. The clamping plate 23 and the side plate 11 are rotatably connected. A torsion spring is installed at the position, which drives the clamping plate 23 to rotate away from the outer shell 4. The surfaces of the two clamping plates 23 that are close to each other are rotatably connected to a connecting rod 22. The connecting rod 22 is located on the side plate 11 away from the outer shell 4. The clamping mechanism 2 also includes a second electric telescopic rod 21 fixed on the side plate 11. The piston end of the second electric telescopic rod 21 faces downward and is rotatably connected to a connecting frame. The ends of the two connecting rods 22 away from the clamping plate 23 are rotatably connected to the connecting frame.

[0030] In use, the operator places the outer casing 4 on the upper surface of the base plate 1, with the bottom of the outer casing 4 inside the limiting groove and between the two clamping plates 23. Then, the piston rod of the second electric telescopic rod 21 extends downward, driving the connecting frame to descend. This causes the connecting frame to lower the top of the connecting rotating rod 22. During the descent, the connecting rotating rod 22 pushes the two connecting rotating rods 22, causing their lower ends to move away from each other. As the lower ends of the two connecting rotating rods 22 move away, they push the clamping plate 23 to rotate around the position where it is rotatably connected to the side plate 11. This causes the end of the clamping plate 23 away from the connecting rotating rod 22 to rotate closer to and clamp the outer casing 4. The rotating clamping plate 23 clamps and fixes the outer casing 4, keeping it stable on the base plate 1 and preventing the outer casing 4 from shaking during the process of the feeding mechanism 3 placing the electrode sheet inside the outer casing 4. This makes it easier for the operator to place the electrode sheet inside the outer casing 4. After the two clamping plates 23 clamp and fix the outer casing 4, the connecting frame and the connecting rotating rod 22 stop moving.

[0031] In summary, the workflow of this solution is as follows: The operator places the outer shell 4 on the upper surface of the base plate 1, and the clamping mechanism 2 clamps and positions the outer shell 4. The operator then adheres the electrode sheet to the adhesive layer, fixing the electrode sheet to the bottom of the sleeve 33. Subsequently, the piston end of the first electric telescopic rod 13 retracts, causing the mounting frame 35 to descend. The descent of the mounting frame 35 causes the mounting rod 31 to descend. During the descent, the mounting rod 31 causes the sleeve 33 to descend. During the descent, the sleeve 33 enters the interior of the outer shell 4. After the sleeve 33 moves the electrode sheet to a position near the bottom inside the outer shell 4, the limiting block 14 blocks the descent of the sleeve 33. At this time, the mounting rod 31 continues to descend, causing the ejector block 32 to press down on the electrode sheet, causing the electrode sheet to separate from the sleeve 33 and fall smoothly into the bottom of the outer shell 4.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fixture for lithium battery production and assembly, comprising a base plate (1), a side plate (11) fixedly disposed on one side of the base plate (1), the side plate (11) being perpendicularly disposed to the base plate (1), a housing (4) disposed on the upper side of the base plate (1), a vertically disposed mounting groove (12) being provided at a position slightly above the middle of the vertical height of the side plate (11), and a first electric telescopic rod (13) being fixedly disposed at the bottom of the mounting groove (12), characterized in that: A clamping mechanism (2) is provided on one side of the side plate (11) to clamp the outer shell (4). A feeding mechanism (3) is provided above the bottom plate (1). The first electric telescopic rod (13) drives the feeding mechanism (3) to descend so that the feeding mechanism (3) sends the electrode sheet into the interior of the outer shell (4). The feeding mechanism (3) includes a mounting rod (31). A push-out block (32) is fixedly provided at the lower end of the mounting rod (31). A sleeve (33) is slidably sleeved on the mounting rod (31). An adhesive layer is provided at the bottom of the sleeve (33).

2. The fixture for lithium battery production and assembly according to claim 1, characterized in that: The clamping mechanism (2) includes two clamping plates (23) symmetrically arranged on one side of the side plate (11). The outer shell (4) is located between the two clamping plates (23). The end of the clamping plate (23) away from the outer shell (4) passes through the side plate (11) and extends outward. The clamping plate (23) is rotatably connected to the side plate (11) at the intersection. The surfaces of the two clamping plates (23) that are close to each other are rotatably connected to a connecting rod (22). The connecting rod (22) is located on the side of the side plate (11) away from the outer shell (4).

3. The fixture for lithium battery production and assembly according to claim 2, characterized in that: The clamping mechanism (2) further includes a second electric telescopic rod (21) fixed on the side plate (11). The piston end of the second electric telescopic rod (21) faces downward and is rotatably connected to a connecting frame. The ends of the two connecting rods (22) away from the clamping plate (23) are rotatably connected to the connecting frame.

4. The fixture for lithium battery production and assembly according to claim 3, characterized in that: The feeding mechanism (3) also includes an external compression spring (34) movably sleeved on the outside of the mounting rod (31). A top plate is fixedly provided on the top of the mounting rod (31). The two ends of the external compression spring (34) are respectively fixedly provided on the lower surface of the top plate and the top of the sleeve (33). A limit block (14) is fixedly provided on the side of the side plate (11) near the outer shell (4). The top of the limit block (14) is on the same plane as the top of the outer shell (4).

5. The fixture for lithium battery production and assembly according to claim 4, characterized in that: The piston end of the first electric telescopic rod (13) is fixedly provided with a mounting bracket (35). One end of the mounting bracket (35) passes through the mounting groove (12) and extends outward. One end of the mounting bracket (35) is fixedly provided on the upper surface of the top plate. When the piston end of the first electric telescopic rod (13) extends and retracts, it drives the mounting bracket (35) to rise and fall, so that the mounting bracket (35) drives the mounting rod (31) to rise and fall.

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