Tab correction mechanism

Abstract

The utility model discloses a tab correction mechanism belongs to the related technical field of lead -acid battery processing, including the bottom plate, both sides of bottom plate all have the sliding mechanism of sliding installation, and the top fixed mounting of sliding mechanism has two slide rails, and the sliding installation of two slide rails on the same side has the correction mould, and the middle part fixed mounting of bottom plate has two parallelly arranged side fixed boards, and still install the compression mechanism for battery body fixed on the bottom plate, and the compression mechanism is located two side fixed boards intermediate position, and the fixed mounting of two side fixed boards has the lead strip positioning board, and the top of lead strip positioning board is connected with the lead strip compression board through fixed bolt, and the opposite side wall of two correction moulds all installs a plurality of correction teeth, the utility model discloses the tab correction mechanism carries out batch correction to the tab of lead -acid battery, makes the tab and lead strip close adhesion, guarantees laser welding, and the tab and lead strip are fully fused together, and effectively guarantee the welding quality.

Description

Technical Field

[0001] This utility model belongs to the technical field of lead-acid battery processing, and specifically relates to a tab correction mechanism. Background Technology

[0002] In the manufacturing process of various batteries such as lithium-ion batteries and lead-acid batteries, the tabs serve as the core bridge connecting the internal electrodes of the battery to the external circuit. Their structural shape and dimensional accuracy directly determine the battery's electrical performance, assembly qualification rate, and safety in use. Tabs are usually composed of a metal conductive layer and an insulating adhesive layer. In the pre-processing stages such as electrode rolling, cutting, and tab forming, various morphological defects are prone to occur due to factors such as the release of material stress, wear of cutting tools, and uneven clamping force of the conveying mechanism. These defects include edge warping, planar bending, offset and wrinkling of the insulating adhesive layer, and dimensional deviations in the length direction. These defects can easily interfere with the welding of lead strips to the tabs, resulting in insufficient contact between the lead strips and the tabs.

[0003] Currently, there are two methods for correcting electrode tabs: manual correction and mechanical correction. Manual correction has lower precision, while mechanical correction requires correcting each electrode tab individually, which can lead to correction deviations and lower efficiency, thus affecting the subsequent welding of the electrode tabs to the lead strip. Utility Model Content

[0004] The main purpose of this utility model is to provide an ear correction mechanism that can effectively solve the technical problems of easy deviation and low efficiency when using manual or mechanical correction in ear correction.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: The electrode tab correction mechanism includes a base plate. Sliding mechanisms are slidably installed on both sides of the base plate, and two slide rails are fixedly installed on the top of the sliding mechanisms. Correction molds are slidably installed on the two slide rails on the same side. Two parallel side fixing plates are fixedly installed in the middle of the base plate, and a clamping mechanism for fixing the battery body is also installed on the base plate. The clamping mechanism is located in the middle of the two side fixing plates, and a lead strip positioning plate is fixedly installed between the two side fixing plates. A lead strip clamping plate is connected to the top of the lead strip positioning plate by a fixing bolt. Several correction teeth are installed on the opposite side walls of the two correction molds, and gap grooves for adapting to the electrode tab thickness of the battery body are opened between adjacent correction teeth.

[0006] As a further embodiment of this utility model, the sliding mechanism includes four guide rods and a clamping cylinder. A guide sleeve adapted to the guide rods is fixedly embedded on the base plate. The clamping cylinder is fixedly installed on the base plate, and its top end is fixedly connected to the bottom surface of the straightening mold. The top ends of the four guide rods are fixedly connected to a movable plate, and the bottom ends of the four guide rods on the same side are connected to a connecting frame.

[0007] As a further embodiment of this utility model, an inner groove is provided on one side of the correction mold, and a connecting seat is fixedly installed on the top wall of the inner groove.

[0008] As a further embodiment of this utility model, the movable plate is T-shaped, and a movable cylinder is fixedly installed at its extended end. The telescopic end of the movable cylinder is fixedly connected to the connecting seat.

[0009] As a further embodiment of this utility model, a slider is installed at the bottom of the correction mold, and the correction mold is slidably connected to the slide rail through the slider.

[0010] As a further embodiment of this utility model, the top surface of the lead strip positioning plate is provided with a mating screw hole, and the fixing bolt is threadedly connected to the mating screw hole.

[0011] As a further embodiment of this utility model, the top surface of the lead strip positioning plate is concave, and the top surface of the lead strip pressing plate is concave-convex, with the concave-convex portion matching the concave portion of the lead strip positioning plate.

[0012] As a further embodiment of this utility model, through grooves for welding lead strips are provided in both the concave-convex portion of the lead strip pressing plate and the concave portion of the lead strip positioning plate.

[0013] As a further embodiment of this utility model, the clamping mechanism includes a clamping cylinder and a support plate. The clamping cylinder is located on one side of the support plate, and a limiting side plate is fixedly installed on the side of the support plate away from the clamping cylinder. A battery clamping plate is fixedly connected to the driving end of the clamping cylinder.

[0014] As a further embodiment of this utility model, the battery clamping plate is arranged parallel to the limiting side plate, and the bottom surface of the battery clamping plate is higher than the top surface of the support plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This invention uses a straightening mold, a lead strip positioning plate, and a lead strip pressing plate to press the lead strip into place. A clamping cylinder moves the movable plate upward, causing each straightening tooth to move upward. The lead strip pressing plate then presses down on the lead strip inside the lead strip positioning plate, thereby achieving the straightening operation of the upper and lower ends of the bent part of the electrode tab. This ensures that the upper and lower ends of the electrode tab are limited during welding, allowing the electrode tab to fit tightly with the lead strip. This guarantees that the electrode tab and the lead strip are fully fused together during laser welding, effectively ensuring welding quality. Attached Figure Description

[0016] Figure 1 This is an overall structural diagram of the ear correction mechanism of this utility model; Figure 2 This is a front view of the ear correction mechanism of this utility model; Figure 3 This is an assembly structure diagram of the correction mold and the battery body in the electrode correction mechanism of this utility model; Figure 4 This is a structural diagram of the correction mold in the ear correction mechanism of this utility model; Figure 5 This is a structural diagram of the lead strip clamping plate in the electrode correction mechanism of this utility model; Figure 6 This is a structural diagram of the lead strip positioning plate in the ear correction mechanism of this utility model; Figure 7 This is a structural diagram of the clamping mechanism in the ear correction mechanism of this utility model.

[0017] In the diagram: 1. Tightening cylinder; 2. Movable plate; 3. Guide rod; 4. Guide sleeve; 5. Moving cylinder; 6. Correcting mold; 7. Side fixing plate; 8. Lead strip positioning plate; 9. Lead strip pressing plate; 10. Pressing mechanism; 1001. Pressing cylinder; 1002. Battery pressing plate; 1003. Support plate; 1004. Limiting side plate; 11. Connecting frame; 12. Battery body; 13. Correcting teeth; 14. Connecting seat; 15. Fixing bolt; 16. Connecting screw hole. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] like Figure 1-7 As shown, the tab correction mechanism includes a base plate, with sliding mechanisms slidably installed on both sides of the base plate, and two slide rails fixedly installed on the top of the sliding mechanisms. Correction molds 6 are slidably installed on the two slide rails on the same side. Two parallel side fixing plates 7 are fixedly installed in the middle of the base plate, and a clamping mechanism 10 for fixing the battery body 12 is also installed on the base plate. The clamping mechanism 10 is located in the middle of the two side fixing plates 7, and a lead strip positioning plate 8 is fixedly installed between the two side fixing plates 7. A lead strip clamping plate 9 is connected to the top of the lead strip positioning plate 8 by a fixing bolt 15. Several correction teeth 13 are installed on the opposite side walls of the two correction molds 6, and a gap groove for adapting the tab thickness of the battery body 12 is opened between adjacent correction teeth 13.

[0020] The bent tab is limited by the adjacent straightening teeth 13. Its bent section is located on the upper part of the straightening teeth 13. As the tightening cylinder 1 rises, it is driven to stick to the lead strip positioning plate 8, thereby fixing the position of the tab.

[0021] The sliding mechanism includes four guide rods 3 and a clamping cylinder 1. A guide sleeve 4, adapted to the guide rods 3, is fixedly embedded in the base plate. The clamping cylinder 1 is fixedly installed on the base plate, and its top end is fixedly connected to the bottom surface of the straightening mold 6. The top ends of the four guide rods 3 are all fixedly connected to a movable plate 2, and the bottom ends of the four guide rods 3 on the same side are all connected to a connecting frame 11. By moving the clamping cylinder 1 upward, the straightening teeth 13 move upward. As the lead strip is placed into the lead strip positioning plate 8, it is pressed by the lead strip clamping plate 9, and then, in conjunction with the straightening teeth 13, the upper and lower parts of the tab bend are pressed together, thereby achieving straightening.

[0022] The straightening mold 6 has an inner groove on one side, and a connecting seat 14 is fixedly installed on the top wall of the inner groove.

[0023] The movable plate 2 is T-shaped, and a movable cylinder 5 is fixedly installed on its extended end. The telescopic end of the movable cylinder 5 is fixedly connected to the connecting seat 14.

[0024] A slider is installed at the bottom of the straightening mold 6, and the straightening mold 6 is slidably connected to the slide rail via the slider. Driven by the moving cylinder 5, the straightening mold 6 can move on the slide rail using the slider, thereby changing the horizontal position of the straightening teeth 13.

[0025] The top surface of the lead strip positioning plate 8 is provided with a docking screw hole 16, and the fixing bolt 15 is threadedly connected to the docking screw hole 16.

[0026] The top surface of the lead strip positioning plate 8 is concave, and the top surface of the lead strip pressing plate 9 is concave-convex. The concave-convex part is adapted to the concave part of the lead strip positioning plate 8. Through grooves for lead strip welding are provided through the concave-convex part of the lead strip pressing plate 9 and the concave part of the lead strip positioning plate 8.

[0027] The groove is designed to facilitate the insertion of lead bars, which in turn makes subsequent welding operations easier.

[0028] The clamping mechanism 10 includes a clamping cylinder 1001 and a support plate 1003. The clamping cylinder 1001 is located on one side of the support plate 1003, and a limiting side plate 1004 is fixedly installed on the side of the support plate 1003 away from the clamping cylinder 1001. A battery clamping plate 1002 is fixedly connected to the drive end of the clamping cylinder 1001. The battery clamping plate 1002 is arranged parallel to the limiting side plate 1004, and the bottom surface of the battery clamping plate 1002 is higher than the top surface of the support plate 1003.

[0029] The clamping mechanism 10 secures the battery body 12 externally, thereby ensuring that it does not wobble during the straightening and welding process.

[0030] It should be noted that this utility model is an electrode correction mechanism. In use, the battery body 12 is first fixed by the clamping mechanism 10. The battery body 12 is first placed on the upper part of the support plate 1003, with one side of it close to the limiting side plate 1004. The clamping cylinder 1001 drives the battery clamping plate 1002 to move laterally and fit against the other side of the battery body 12, thereby fixing the battery body 12.

[0031] Then, the two straightening molds 6 are moved laterally by the moving cylinder 5, and each straightening tooth 13 is moved into the gap between the adjacent tabs. A lead strip of a specified type is placed at each position on the lead strip positioning plate 8, and then the lead strip clamping plate 9 is assembled and connected and fixed to the lead strip positioning plate 8 by the fixing bolt 15.

[0032] The clamping cylinder 1 drives the movable plate 2 to move upward, and the guide rod 3 moves inside the guide sleeve 4, which drives the straightening mold 6 to move upward. At this time, the lead strip inside the lead strip positioning plate 8 is pressed, and the straightening operation of the electrode tab can be realized.

[0033] Laser welding is performed on the tabs and lead strips to fully fuse them together. After welding, the two straightening molds 6 are moved laterally to separate from the tabs, and then the straightening molds 6 are moved down. The clamping cylinder 1001 drives the battery clamping plate 1002 to separate from the battery, and the battery can be removed.

[0034] 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 illustrative of the principles of this 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. Tab straightening mechanism comprising a base plate, characterized in that, The base plate is slidably mounted on both sides with sliding mechanisms, and two slide rails are fixedly mounted on the top of the sliding mechanisms. Correction molds (6) are slidably mounted on the two slide rails on the same side. Two parallel side fixing plates (7) are fixedly mounted in the middle of the base plate. A clamping mechanism (10) for fixing the battery body (12) is also mounted on the base plate. The clamping mechanism (10) is located in the middle of the two side fixing plates (7). A lead strip positioning plate (8) is fixedly mounted between the two side fixing plates (7). A lead strip clamping plate (9) is connected to the top of the lead strip positioning plate (8) by a fixing bolt (15). Several correction teeth (13) are mounted on the opposite side walls of the two correction molds (6). A gap groove for adapting the electrode thickness of the battery body (12) is opened between adjacent correction teeth (13).

2. The tab correction mechanism of claim 1, wherein: The sliding mechanism includes four guide rods (3) and a clamping cylinder (1). A guide sleeve (4) adapted to the guide rods (3) is fixedly embedded on the base plate. The clamping cylinder (1) is fixedly installed on the base plate and its top end is fixedly connected to the bottom surface of the straightening mold (6). The top ends of the four guide rods (3) are fixedly connected to a movable plate (2), and the bottom ends of the four guide rods (3) on the same side are connected to a connecting frame (11).

3. The ear correction mechanism according to claim 2, characterized in that: The correction mold (6) has an inner groove on one side, and a connecting seat (14) is fixedly installed on the top wall of the inner groove.

4. The ear correction mechanism according to claim 3, characterized in that: The movable plate (2) is T-shaped, and a movable cylinder (5) is fixedly installed on its extended end. The telescopic end of the movable cylinder (5) is fixedly connected to the connecting seat (14).

5. The ear correction mechanism according to claim 4, characterized in that: The bottom of the correction mold (6) is equipped with a slider, and the correction mold (6) is slidably connected to the slide rail through the slider.

6. The ear correction mechanism according to claim 1, characterized in that: The top surface of the lead strip positioning plate (8) is provided with a docking screw hole (16), and the fixing bolt (15) is threadedly connected to the docking screw hole (16).

7. The ear correction mechanism according to claim 6, characterized in that: The top surface of the lead strip positioning plate (8) is concave, and the top surface of the lead strip pressing plate (9) is concave-convex, with its concave-convex part matching the concave part of the lead strip positioning plate (8).

8. The ear correction mechanism according to claim 7, characterized in that: The concave-convex portion of the lead bar pressing plate (9) and the concave portion of the lead bar positioning plate (8) are both provided with through grooves for lead bar welding.

9. The ear correction mechanism according to claim 1, characterized in that: The clamping mechanism (10) includes a clamping cylinder (1001) and a support plate (1003). The clamping cylinder (1001) is located on one side of the support plate (1003), and a limiting side plate (1004) is fixedly installed on the side of the support plate (1003) away from the clamping cylinder (1001). A battery clamping plate (1002) is fixedly connected to the driving end of the clamping cylinder (1001).

10. The ear correction mechanism according to claim 9, characterized in that: The battery clamping plate (1002) is arranged parallel to the limiting side plate (1004), and the bottom surface of the battery clamping plate (1002) is higher than the top surface of the support plate (1003).

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