A battery positive and negative electrode tab welding device

Abstract

This utility model discloses a battery positive and negative electrode tab welding device, including a frame, a foot switch, and a turntable. The turntable is rotatably mounted on the frame. An ultrasonic welding machine is mounted on one side of the turntable, and an electrode tab feeding machine is mounted on the other side of the ultrasonic welding machine. Four fixtures are evenly arranged on the turntable. Each fixture includes a first base plate, a second base plate, and a clamping assembly. The second base plate includes a positioning block on top. The first base plate has a waist hole, and the second base plate has a first strip hole. The first base plate is connected to the turntable, and the second base plate is connected to the first base plate. The clamping assembly is connected to the second base plate. This device is mainly designed to facilitate debugging and installation during operation, reduce processing difficulty, and improve electrode tab welding accuracy.

Description

Technical Field

[0001] This utility model relates to the field of electrode tab welding technology, and in particular to a battery positive and negative electrode tab welding device. Background Technology

[0002] Soft-pack batteries are a commonly used type of battery. A soft-pack battery consists of a cell and tabs. Several layers of electrode foil are set on the cell, and the tabs are welded to these foils. Traditionally, the tabs of soft-pack batteries are usually a thin metal sheet. Welding the tabs is generally done using an ultrasonic welding device. The ultrasonic welding device includes a liftable welding head and a base located below the welding head. In use, the two objects (or more) to be welded are placed on the base. The welding head descends and presses the two objects together. Then, under the energy of the ultrasonic waves, the contact surfaces of the objects melt at high temperatures and fuse together, thus welding the two objects together. Existing semi-automatic tab welding machines use multiple fixtures containing cells mounted on a turntable. The cells are rotated to the welding machine for welding. However, because there are multiple fixtures, there are problems such as inconsistent positions of each fixture on the welding machine due to processing and installation errors, affecting welding quality, and inconvenience in debugging and installation. Utility Model Content

[0003] In view of the above-mentioned prior art, the present invention provides a battery positive and negative electrode tab welding device, which mainly solves the above-mentioned technical problems.

[0004] To achieve the above objectives, the technical solution of this utility model embodiment is implemented as follows: A battery positive and negative electrode welding device includes a frame, a foot switch, and a turntable. The turntable is rotatably mounted on the frame. An ultrasonic welding machine is mounted on one side of the turntable, and an electrode feeding machine is mounted on one side of the ultrasonic welding machine. Four fixtures are evenly arranged on the turntable. Each fixture includes a first base plate, a second base plate, and a clamping assembly. The second base plate includes a positioning block on top. The first base plate has a waist hole, and the second base plate has a first strip hole. The first base plate is connected to the turntable, the second base plate is connected to the first base plate, and the clamping assembly is connected to the second base plate.

[0005] Furthermore, the clamping assembly includes a hinge seat, a pressure rod, a first magnet, and a second magnet. The hinge seat is connected to the second base plate, the pressure rod is hinged to the hinge seat, the first magnet is embedded in the second base plate, and the second magnet, which cooperates with the first magnet, is inlaid on the far end bottom surface of the pressure rod.

[0006] Furthermore, the first base plate is provided with guide strips.

[0007] Furthermore, the ultrasonic welding machine includes a mounting plate with a housing. A first cylinder is mounted on top of the housing. The output end of the first cylinder is connected to a welding machine. The welding machine includes a welding head with a welding seat below it. The mounting plate has a second cylinder connected to a first wedge block. The first wedge block is fitted with a second wedge block. The mounting plate has a guide rod. The second wedge block has a linear bearing that fits with the guide rod. The welding seat is connected to the second wedge block.

[0008] Furthermore, the mounting plate is provided with a slide rail, and the slide rail is fitted with a slider, with the first wedge block mounted on the slider.

[0009] Furthermore, the frame is equipped with a dust cover, and the dust cover is equipped with an indicator light.

[0010] Furthermore, a motor is provided on the frame, and the turntable is connected to the output end of the motor.

[0011] Furthermore, the frame is equipped with a safety light curtain.

[0012] Furthermore, the frame is equipped with an emergency stop switch.

[0013] Furthermore, the mounting plate is provided with a second hole.

[0014] The beneficial effects of this utility model are as follows: During installation and debugging, the first base plate is installed on the turntable by screws passing through the waist hole, and can be adjusted in the circumferential direction. The second base plate is installed on the first base plate by screws passing through the first hole, and can be adjusted in the front and back direction. The cooperation of the first base plate and the second base plate makes it convenient to adjust the position of each fixture on the ultrasonic welding machine during installation, which facilitates debugging and installation, reduces processing difficulty, and improves the welding accuracy of the electrode tabs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a battery positive and negative electrode tab welding device according to an embodiment of this application; Figure 2 This is a schematic diagram of a battery positive and negative electrode tab welding device according to an embodiment of this application; Figure 3 This is a schematic diagram of the fixture structure in the embodiments of this application; Figure 4 This is a schematic diagram of the fixture structure in the embodiments of this application; Figure 5 This is a schematic diagram of the structure of the ultrasonic welding machine in the embodiment of this application; Explanation of icon numbers: 1. Frame; 2. Foot switch; 3. Turntable; 4. Loading / unloading station; 5. Welding station; 6. Ultrasonic welding machine; 7. Electrode loading machine; 8. Fixture; 9. First base plate; 10. Second base plate; 11. Clamping assembly; 12. Positioning block; 13. Waist hole; 14. First slot; 15. Hinge seat; 16. Pressure rod; 17. First magnet; 18. Second magnet; 19. Guide bar; 20. Mounting plate; 21. Housing; 22. First cylinder; 23. Welding machine; 24. Welding head; 25. Welding seat; 26. Second cylinder; 27. First wedge block; 28. Second wedge block; 29. ​​Guide rod; 30. Linear bearing; 31. Slide rail; 32. Slider; 33. Dust cover; 34. Indicator light; 35. Motor; 36. Safety light curtain; 37. Emergency stop switch; 38. Second slot; 39. Battery cell. Detailed Implementation

[0016] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in this specification of this utility model is for the purpose of describing particular embodiments only and is not intended to limit the utility model. In the following description, the expression "some embodiments" refers to a subset of all possible embodiments; however, it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with each other without conflict.

[0017] It should also be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "inner," "outer," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0018] Example 1 See attached document Figure 1-5This application provides a battery positive and negative electrode welding device, including a frame 1 and a foot switch 2. The frame 1 is provided with a loading / unloading station 4 and a welding station 5. The loading / unloading station 4 is used for loading and unloading battery cells 39. The frame 1 is provided with a control panel. A turntable 3 is rotatably mounted on the frame 1. An ultrasonic welding machine 6 is provided on one side of the turntable 3. An electrode loading machine 7 is provided on one side of the ultrasonic welding machine 6. The electrode loading machine 7 is used for loading electrodes. The electrode loading machine 7 is prior art. In use, the electrode loading machine 7 can be used with prior art. The electrode feeding device is connected and used, which will not be described in detail here. The electrical components, welding machine, and feeding machine are electrically connected to the control panel. The turntable 3 can be driven to rotate by a motor 35, a cylinder, or a hydraulic cylinder. Specifically, the frame 1 is equipped with a motor 35, and the turntable 3 is connected to the output end of the motor 35 to improve the repeatability of the turntable 3 rotation. There are four fixtures 8 evenly arranged in a circular array on the turntable 3. Each fixture 8 is used to position and fix the battery cell 39. Stepping on the foot switch 2 drives the turntable 3 to rotate and rotate the fixture 8 to the ultrasonic welding machine 6. In standby welding mode, the control panel drives the tab feeder 7 to transport the tab to the battery cell 39. The control panel then controls the ultrasonic welding machine 6 to perform welding, and this cycle repeats. The fixture 8 includes a first base plate 9, a second base plate 10, and a clamping assembly 11. The second base plate 10 includes a positioning block 12 on top, and the battery cell 39 is placed inside the positioning block 12. The clamping assembly 11 is connected to the second base plate 10 to clamp and fix the battery cell 39. The first base plate 9 has four waist holes 13 at its four corners, through which screws are passed to install the device onto the turntable 3. The second base plate 10 is provided with first holes 14 on both sides for circumferential adjustment. The second base plate 10 is installed on the first base plate 9 by screws passing through the first holes 14, and can be adjusted in the front and back direction. The cooperation between the first base plate 9 and the second base plate 10 facilitates the adjustment of the position of each fixture 8 at the ultrasonic welding machine 6 during installation, which is convenient for debugging and installation, reduces processing difficulty, and improves welding accuracy. Optionally, the first base plate 9 is provided with guide strips 19 for guiding the second base plate 10, which facilitates adjustment and ensures accuracy.

[0019] Preferably, the clamping assembly 11 includes a hinge seat 15, a pressure rod 16, a first magnet 17, and a second magnet 18. The hinge seat 15 is connected to the second base plate 10, and the pressure rod 16 is hinged to the hinge seat 15. The inner side of the pressure rod 16 is provided with a soft rubber layer, which can be silicone or rubber, etc., to provide cushioning and protection. The first magnet 17 is embedded in the second base plate 10, and the second magnet 18, which cooperates with the first magnet 17, is embedded on the far end of the pressure rod 16 away from the hinge seat 15. During operation, after the technician places the battery cell 39 on the positioning block 12, the pressure rod 16 is flipped to press down the battery cell 39. The battery cell 39 is fixed by the magnetic attraction between the first magnet 17 and the second magnet 18, preventing the battery cell 39 from shaking and causing damage or positional displacement during transportation. This ensures that the welding accuracy and quality of the battery cell 39 are not affected by the welding process. The structure is simple, easy to operate and maintain, and has a long service life.

[0020] Example 2 See attached document Figure 1-5 The difference between this embodiment and Embodiment 1 is that the ultrasonic welding machine 6 includes a mounting plate 20. The mounting plate 20 has second holes 38 on both sides for easy front-to-back adjustment. A housing 21 is mounted on the mounting plate 20, and a first cylinder 22 is mounted on top of the housing 21. The cylinder is connected to an external air source, and the output end of the first cylinder 22 is connected to a welding machine 23. A guide rail and a slider are provided inside the housing 21. The guide rail is installed inside the housing, and the slider slides on the guide rail. The welding machine 23 is connected to the slider. The extension and retraction of the first cylinder 22 drives the welding machine 23 to move up and down. The welding machine 23 includes a welding head 24, and a welding seat 25 is located below the welding head 24. The mounting plate 20 has a second cylinder 2... 6. The second cylinder 26 is connected to the first wedge block 27. Specifically, the mounting plate 20 is provided with a slide rail 31, and the slide rail 31 is fitted with a slider 32. The first wedge block 27 is mounted on the slider 32 to improve the movement stability of the first wedge block 27. The first wedge block 27 is fitted with a second wedge block 28. Guide rods 29 are provided on both sides of the mounting plate 20. The second wedge block 28 is provided with a linear bearing 30 that cooperates with the guide rods 29. The welding seat 25 is connected to the second wedge block 28. The second cylinder 26 drives the first wedge block 27 to move through its extension and retraction, thereby driving the welding seat 25 to move up and down to cooperate with the welding machine 23 for welding. The structure has good stability, runs smoothly, and improves the welding effect.

[0021] Specifically, the frame 1 is equipped with a dust cover 33 for dust protection, and the dust cover 33 is equipped with an indicator light 34 for indicating the working status of the machine.

[0022] Specifically, the loading and unloading stations 4 on the frame 1 are equipped with safety light curtains 36. When a person reaches into the machine, the machine will stop working to prevent injury and improve work safety.

[0023] Specifically, the frame 1 is equipped with an emergency stop switch 37, which is used to stop the machine in an emergency to improve work safety.

[0024] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. The protection scope of this utility model should be determined by the protection scope of the stated claims.

Claims

1. A battery positive and negative tab welding device, comprising a rack, a foot switch and a turntable, the rack is provided with the turntable which is rotatable, one side of the turntable is provided with an ultrasonic welding machine, one side of the ultrasonic welding machine is provided with a tab feeding machine, characterized in that, The turntable has four fixtures evenly arranged. Each fixture includes a first base plate, a second base plate, and a clamping assembly. The second base plate includes a positioning block on top. The first base plate has a waist hole, and the second base plate has a first strip hole. The first base plate is connected to the turntable, the second base plate is connected to the first base plate, and the clamping assembly is connected to the second base plate.

2. The battery positive and negative tab welding device according to claim 1, wherein, The clamping assembly includes a hinge seat, a pressure rod, a first magnet, and a second magnet. The hinge seat is connected to the second base plate, the pressure rod is hinged to the hinge seat, the first magnet is embedded in the second base plate, and the second magnet, which cooperates with the first magnet, is inlaid on the far end bottom surface of the pressure rod.

3. The battery tab welding device according to claim 1, wherein The first base plate is equipped with guide strips.

4. The battery tab welding device of claim 1, wherein the welding head is configured to weld the positive and negative tabs to the battery cell by applying a welding current to the positive and negative tabs and the battery cell. The ultrasonic welding machine includes a mounting plate with a housing. A first cylinder is mounted on top of the housing. The output end of the first cylinder is connected to a welding machine. The welding machine includes a welding head with a welding seat below it. The mounting plate has a second cylinder connected to a first wedge block. The first wedge block is fitted with a second wedge block. The mounting plate has a guide rod. The second wedge block has a linear bearing that fits with the guide rod. The welding seat is connected to the second wedge block.

5. The battery tab welding device according to claim 4, wherein The mounting plate is provided with a slide rail, and the slide rail is fitted with a slider. The first wedge block is mounted on the slider.

6. The battery tab welding device of claim 1, wherein, The frame is equipped with a dust cover, and the dust cover is equipped with an indicator light.

7. The battery tab welding device of claim 1, wherein the welding head is configured to weld the positive and negative tabs to the battery cell by applying a welding current to the positive and negative tabs and the battery cell. The frame is equipped with a motor, and the turntable is connected to the output end of the motor.

8. The battery tab welding device of claim 6, wherein the welding head is configured to weld the positive and negative tabs to the battery cell by applying a welding current to the positive and negative tabs and the battery cell. The frame is equipped with a safety light curtain.

9. The battery tab welding device of claim 1, wherein, An emergency stop switch is provided on the frame.

10. The battery tab welding device of claim 4, wherein, The mounting plate has a second hole.

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