Automatic spot welding device for lithium battery protection plate

Abstract

The utility model discloses an automatic spot welding device for a lithium battery protection plate, which relates to the technical field of spot welding of the lithium battery protection plate and comprises a worktable, mounting seats are fixedly mounted at two ends of the top surface of the worktable respectively, a sliding rail is fixedly mounted at the middle end of the top surface of the worktable, and a fixing frame is placed on the top surface of the sliding rail. A protection plate moving assembly is arranged on the top face of the fixing frame and the inner wall of one installation base, nickel strip feeding devices are fixedly installed on the top faces of the installation bases, a control terminal is fixedly installed on the top face of the workbench, an odor treatment assembly is fixedly installed on the top face of the workbench, and a feeding assembly is arranged on the top face of the workbench. The protective plates needing spot welding are stacked in the hopper, the lowest protective plate can fall on the inner wall of the conveying frame, the second electric push rod drives the push plate to push the protective plates of the conveying frame to the limiting frame, and due to the fact that the baffles are arranged, the protective plates in the hopper cannot fall on the conveying frame in the pushing process.

Description

Technical Field

[0001] The utility model relates to the technical field of spot welding of lithium battery protection plates, in particular to an automatic spot welding device for lithium battery protection plates. Background Art

[0002] The lithium battery protection board is a charge and discharge protection for the series lithium battery pack. When fully charged, it can ensure that the voltage difference between each single battery is less than the set value, realize the equal charging of each single battery in the battery pack, and effectively improve the charging effect under the series charging mode. At the same time, it detects the overvoltage, undervoltage, overcurrent, short circuit, and overtemperature of each single battery in the battery pack to protect and extend the battery life. The undervoltage protection prevents each single battery from being damaged due to over-discharge during discharge. During the processing of the lithium battery protection board, the nickel strip needs to be spot welded to the pins of the protection board.

[0003] When spot welding the existing lithium battery protection plate, the protection plate needs to be placed on a limit frame so that it can be spot welded. However, the general loading method is to manually place the protection plate on the inner wall of the limit frame, which not only has a slow loading speed but also has certain safety hazards. Therefore, it needs to be improved. Utility Model Content

[0004] Technical issues solved

[0005] The purpose of the utility model is to make up for the deficiencies of the prior art and to provide an automatic spot welding device for a lithium battery protection plate.

[0006] Technical Solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic spot welding device for a lithium battery protection plate, comprising a workbench, mounting seats are fixedly installed at both ends of the top surface of the workbench, a slide rail is fixedly installed at the middle end of the top surface of the workbench, a fixing frame is placed on the top surface of the slide rail, a protection plate moving assembly is arranged on the top surface of the fixing frame and the inner wall of one of the mounting seats, a nickel strip feeding device is fixedly installed on the top surface of the mounting seat, a control terminal is fixedly installed on the top surface of the workbench, an odor treatment assembly is fixedly installed on the top surface of the workbench, and a feeding assembly is arranged on the top surface of the workbench.

[0008] As mentioned above, a mounting frame is fixedly installed on the top surface of the mounting seat, mounting openings are respectively provided at both ends of the top surface of the mounting frame, and an electric push rod is fixedly installed on the inner wall of the mounting opening, a mounting plate is fixedly installed on the bottom surface of the electric push rod, and welding heads are fixedly installed on both ends of the bottom surface of the mounting plate.

[0009] The above-mentioned protection plate moving assembly includes a driving motor, a worm, a limiting rod and a movable block. The side surface of the mounting seat is penetrated by a movable groove, and a connecting hole is opened at one end of the movable groove. The driving motor is fixedly installed on the back of one of the mounting seats, and the output end penetrates the mounting seat. One end of the output end of the driving motor is fixedly connected with a worm, and one end of the worm is socketed with the connecting hole on the inner wall of the movable groove of the mounting seat. The limiting rod is fixedly installed on the inner wall of the movable groove of the mounting seat, a threaded hole is penetrated by the back side of the movable block, and is threadedly connected with the worm, a hole is penetrated by the back side of the movable block, and is socketed with the limiting rod, a connecting rod is fixedly installed on the side of the movable block, and one end of the connecting rod is fixedly connected to the side of the fixed frame.

[0010] As mentioned above, the two ends of the top surface of the fixing frame are respectively fixedly mounted with electric slide rails, and the top surface of the slider of the electric slide rail is fixedly mounted with a limit frame.

[0011] The above-mentioned loading assembly includes a hopper, a conveying frame, two electric push rods and a push plate. The two side surfaces of the hopper are respectively fixedly connected with connecting frames, and the bottom surface of the connecting frame is fixedly connected to the top surface of the workbench. The inner wall of the hopper is slightly larger than the protective plate. The bottom surface of the conveying frame is fixedly connected to the top surface of the workbench through a support rod and is located below the hopper. The distance between the inner wall of the conveying frame and the bottom surface of the hopper is just the thickness of a protective plate. The conveying frame is aligned with the limit frame. The top surface of the inner wall of the conveying frame is fixedly connected with the second electric push rod through a connecting rod. A push plate is fixedly installed at one end of the second electric push rod, and the push plate fits with the inner wall of the conveying frame.

[0012] As mentioned above, a baffle is fixedly mounted on the top surface of the push plate.

[0013] The above-mentioned odor treatment assembly includes a treatment cylinder, an air intake fan, a threaded cover and an activated carbon filter plate. The treatment cylinder is fixedly mounted on both ends of the top surface of the workbench through a fixing rod. One end of the arc surface of the treatment cylinder is provided with a thread and is threadedly connected with the threaded cover. The threaded cover is fixedly mounted with an activated carbon filter plate on the inner wall, and the air intake fan is fixedly mounted on the inner wall of the treatment cylinder.

[0014] Beneficial effects:

[0015] Compared with the prior art, the automatic spot welding device for lithium battery protection plate has the following beneficial effects:

[0016] The utility model can stack the protection plates that need spot welding in the hopper through the drive motor, worm, limit rod, movable block, slide rail, conveyor frame, hopper, electric push rod 2, push plate and baffle plate, so that the bottom protection plate can fall on the inner wall of the conveyor frame, and then drive the push plate to push the protection plate of the conveyor frame to the limit frame through the electric push rod 2. Due to the setting of the baffle plate, the protection plate in the hopper will not fall onto the conveyor frame during the pushing process. When the pushing is completed, the electric push rod 2 drives the push plate to be retracted, and the baffle plate no longer blocks the hopper. The bottom protection plate in the hopper falls on the inner wall of the conveyor frame, and the protection plate conveyed to the limit frame can be driven by the drive motor to rotate the worm. At the same time, due to the setting of the limit rod, the fixed frame moves on the slide rail, thereby moving the limit frame and the protection plate, so that spot welding can be performed at different positions. After completion and unloading, the drive motor can drive the worm to reverse to reset the limit frame and align it with the conveyor frame, so that it can perform the next round of feeding spot welding.

[0017] 2. The utility model provides a processing tube, an air intake fan, a threaded cover and an activated carbon filter plate, so that the odor generated by spot welding can be sucked into the processing tube through the air intake fan, and filtered and purified by the activated carbon filter plate to achieve the effect of removing odor. The activated carbon filter plate can be removed from the processing tube by rotating the threaded cover, so that it is easy to replace.

[0018] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and study, or may be taught from the practice of the present invention to some extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 It is a side schematic diagram of the utility model;

[0021] Figure 3 It is a schematic diagram of the side cross-sectional structure of the mounting seat of the utility model;

[0022] Figure 4 For the utility model Figure 1 A is a schematic diagram of the partially enlarged structure of the middle part;

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the threaded cover of the utility model.

[0024] In the figure: 1. workbench; 2. mounting frame; 3. electric push rod 1; 4. welding head; 5. mounting plate; 6. limit frame; 7. slide rail; 8. electric slide rail; 9. fixing frame; 10. mounting seat; 11. driving motor; 12. limit rod; 13. worm; 14. movable block; 15. hopper; 16. control terminal; 17. processing cylinder; 18. threaded cover; 19. activated carbon filter plate; 20. intake fan; 21. conveying frame; 22. push plate; 23. electric push rod 2; 24. baffle. DETAILED DESCRIPTION

[0025] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. 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.

[0026] like Figure 1-5 As shown, the utility model provides a technical solution: an automatic spot welding device for a lithium battery protection plate, comprising a workbench 1, mounting seats 10 are fixedly installed at both ends of the top surface of the workbench 1, a slide rail 7 is fixedly installed at the middle end of the top surface of the workbench 1, a fixing frame 9 is placed on the top surface of the slide rail 7, a protection plate moving component is arranged on the top surface of the fixing frame 9 and the inner wall of one of the mounting seats 10, a nickel strip feeding device is fixedly installed on the top surface of the mounting seat 10, a control terminal 16 is fixedly installed on the top surface of the workbench 1, an odor treatment component is fixedly installed on the top surface of the workbench 1, and a feeding component is arranged on the top surface of the workbench 1.

[0027] According to the overall structure of the device, the protection plates that need to be spot welded are stacked in the hopper 15 so that the bottom protection plate can fall on the inner wall of the conveying frame 21, and then the electric push rod 23 drives the push plate 22 to push the protection plate of the conveying frame 21 to the limit frame 6. Due to the setting of the baffle 24, the protection plate in the hopper 15 will not fall on the conveying frame 21 during the pushing process. When the pushing is completed, the electric push rod 23 drives the push plate 22 to be retracted, and the baffle 24 no longer blocks the hopper 15. The bottom protection plate in the hopper 15 falls on the inner wall of the conveying frame 21, and the protection plate transported to the limit frame 6 can be driven by the drive motor 11 to drive the worm 13 to rotate. At the same time, due to the setting of the limit rod 12, the fixed frame 9 moves on the slide rail 7, so that the limit frame 6 can be moved with And the protective plate moves, at this time, the nickel bar feeding device can transport the nickel bar to the welding point of the protective plate, and then drive the mounting plate 5 to move down through the electric push rod 3 to perform spot welding. After the spot welding is completed, the nickel bar feeding device cuts the nickel bar, and then drives the limit frame 6 to extend through the electric slide rail 8 to carry out unloading. After the unloading is completed, the driving motor 11 can drive the worm 13 to reverse and reset the limit frame 6 to align it with the conveying frame 21, so that it can carry out the next round of feeding spot welding. The odor generated during spot welding can be sucked into the treatment cylinder 17 through the intake fan 20, and filtered and purified by the activated carbon filter plate 19 to achieve the effect of removing odors. The activated carbon filter plate 19 can be removed from the treatment cylinder 17 by rotating the threaded cover 18, so that it is easy to replace.

[0028] like Figure 2 As shown, a mounting frame 2 is fixedly installed on the top surface of the mounting seat 10, and mounting openings are respectively provided at both ends of the top surface of the mounting frame 2, and an electric push rod 3 is fixedly installed on the inner wall of the mounting opening, and a mounting plate 5 is fixedly installed on the bottom surface of the electric push rod 3, and welding heads 4 are fixedly installed on both ends of the bottom surface of the mounting plate 5.

[0029] By setting the electric push rod 3, the mounting plate 5 and the welding head 4, the electric push rod 3 on the mounting frame 2 can drive the mounting plate 5 to move downward, so that the welding head 4 can be moved to the welding point of the protection plate for spot welding.

[0030] like Figure 1-3As shown, the protection plate moving assembly includes a driving motor 11, a worm 13, a limiting rod 12 and a movable block 14. A movable groove is provided on the side of the mounting seat 10, and a connecting hole is opened at one end of the movable groove. The driving motor 11 is fixedly installed on the back of one of the mounting seats 10, and the output end passes through the mounting seat 10. One end of the output end of the driving motor 11 is fixedly connected with the worm 13, and one end of the worm 13 is sleeved with the connecting hole on the inner wall of the movable groove of the mounting seat 10. The limiting rod 12 is fixedly installed on the inner wall of the movable groove of the mounting seat 10. A threaded hole is provided on the back of the movable block 14, which is threadedly connected to the worm 13. A hole is provided on the back of the movable block 14, which is sleeved with the limiting rod 12. A connecting rod is fixedly installed on the side of the movable block 14, and one end of the connecting rod is fixedly connected to the side of the fixed frame 9. Electric slide rails 8 are respectively fixedly installed on both ends of the top surface of the fixed frame 9, and a limiting frame 6 is fixedly installed on the top surface of the slider of the electric slide rail 8.

[0031] By means of the drive motor 11, worm 13, limit rod 12, movable block 14, electric slide rail 8 and limit frame 6, the protective plate can be loaded onto the limit frame 6. The worm 13 is driven to rotate by the drive motor 11. At the same time, due to the setting of the limit rod 12, the fixed frame 9 moves on the slide rail 7, thereby moving the limit frame 6 and the protective plate to continuously change the welding point. When the spot welding is completed, the limit frame 6 can be driven to extend by the electric slide rail 8 to carry out the material unloading.

[0032] like Figure 2 As shown, the loading assembly includes a hopper 15, a conveying frame 21, an electric push rod 23 and a push plate 22. The two side surfaces of the hopper 15 are respectively fixedly connected with connecting frames, and the bottom surface of the connecting frame is fixedly connected to the top surface of the workbench 1. The inner wall of the hopper 15 is slightly larger than the protective plate. The bottom surface of the conveying frame 21 is fixedly connected to the top surface of the workbench 1 through a support rod and is located below the hopper 15. The distance between the inner wall of the conveying frame 21 and the bottom surface of the hopper 15 is just the thickness of a protective plate. The conveying frame 21 is aligned with the limit frame 6. The top surface of the inner wall of the conveying frame 21 is fixedly connected with the electric push rod 23 through a connecting rod. A push plate 22 is fixedly installed at one end of the electric push rod 23, and the push plate 22 is in contact with the inner wall of the conveying frame 21. A baffle 24 is fixedly installed on the top surface of the push plate 22.

[0033] By setting the conveying frame 21, hopper 15, electric push rod 23, push plate 22 and baffle 24, the protective plates that need to be spot welded are stacked in the hopper 15 so that the bottom protective plate can fall on the inner wall of the conveying frame 21. When the limit frame 6 is aligned with the conveying frame 21, the push plate 22 is driven by the electric push rod 23 to push the protective plate of the conveying frame 21 to the limit frame 6. Due to the setting of the baffle 24, the protective plate in the hopper 15 will not fall onto the conveying frame 21 during the pushing process. When the pushing is completed, the electric push rod 23 drives the push plate 22 to be retracted, and the baffle 24 no longer blocks the hopper 15. The bottom protective plate in the hopper 15 falls on the inner wall of the conveying frame 21.

[0034] like Figure 4-5 As shown, the odor treatment assembly includes a treatment cylinder 17, an air intake fan 20, a threaded cover 18 and an activated carbon filter plate 19. The treatment cylinder 17 is fixedly mounted on both ends of the top surface of the workbench 1 through a fixing rod. One end of the arc surface of the treatment cylinder 17 is provided with a thread and is threadedly connected to the threaded cover 18. The threaded cover 18 is fixedly mounted with an activated carbon filter plate 19 on the inner wall, and the air intake fan 20 is fixedly mounted on the inner wall of the treatment cylinder 17.

[0035] By providing the treatment cylinder 17, the air intake fan 20, the threaded cover 18 and the activated carbon filter plate 19, the odor generated during spot welding can be sucked into the treatment cylinder 17 through the air intake fan 20, and filtered and purified by the activated carbon filter plate 19 to achieve the effect of removing odor. The activated carbon filter plate 19 can be removed from the treatment cylinder 17 by rotating the threaded cover 18, so that it is easy to replace.

[0036] Working principle: The protection plates to be spot welded are stacked in the hopper 15 so that the bottom protection plate can fall on the inner wall of the conveying frame 21, and then the push plate 22 is driven by the electric push rod 23 to push the protection plate of the conveying frame 21 to the limit frame 6, and due to the setting of the baffle 24, the protection plate in the hopper 15 will not fall on the conveying frame 21 during the pushing process. When the pushing is completed, the electric push rod 23 drives the push plate 22 to be retracted, and the baffle 24 no longer blocks the hopper 15. The bottom protection plate in the hopper 15 falls on the inner wall of the conveying frame 21, and the protection plate transported to the limit frame 6 is driven by the drive motor 11 to drive the worm 13 to rotate. At the same time, due to the setting of the limit rod 12, the fixed frame 9 moves on the slide rail 7, so that the limit The position frame 6 and the protective plate move. At this time, the nickel bar feeding device can transport the nickel bar to the welding point of the protective plate, and then drive the mounting plate 5 to move down through the electric push rod 3 for spot welding. After the spot welding is completed, the nickel bar feeding device cuts the nickel bar, and then drives the limit frame 6 to extend through the electric slide rail 8 to unload the material. After the unloading is completed, the driving motor 11 drives the worm 13 to reverse and reset the limit frame 6 to align with the conveying frame 21, so that it can carry out the next round of feeding spot welding. The odor generated during spot welding can be sucked into the treatment tube 17 through the air intake fan 20, filtered and purified by the activated carbon filter plate 19, and the activated carbon filter plate 19 can be removed from the treatment tube 17 by rotating the threaded cover 18 for replacement.

[0037] It should be noted that, in this article, the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model; the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected", and "connected" should be understood in a broad sense. For example, "installed" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a mechanical connection or an electrical connection; "connected" can be a direct connection, an indirect connection through an intermediate medium, or a connection between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0038] Although the 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. An automatic spot welding device for a lithium battery protection plate, comprising a workbench (1), characterized in that: Mounting seats (10) are fixedly mounted at both ends of the top surface of the workbench (1), a slide rail (7) is fixedly mounted at the middle end of the top surface of the workbench (1), a fixing frame (9) is placed on the top surface of the slide rail (7), a protective plate moving assembly is arranged on the top surface of the fixing frame (9) and the inner wall of one of the mounting seats (10), a nickel strip feeding device is fixedly mounted on the top surface of the mounting seat (10), a control terminal (16) is fixedly mounted on the top surface of the workbench (1), an odor treatment assembly is fixedly mounted on the top surface of the workbench (1), and a feeding assembly is arranged on the top surface of the workbench (1).

2. The automatic spot welding device for lithium battery protection board according to claim 1, characterized in that: A mounting frame (2) is fixedly mounted on the top surface of the mounting seat (10), mounting openings are respectively provided at both ends of the top surface of the mounting frame (2), and an electric push rod (3) is fixedly mounted on the inner wall of the mounting opening, a mounting plate (5) is fixedly mounted on the bottom surface of the electric push rod (3), and welding heads (4) are fixedly mounted on both ends of the bottom surface of the mounting plate (5).

3. The automatic spot welding device for lithium battery protection board according to claim 1, characterized in that: The protective plate moving assembly comprises a driving motor (11), a worm (13), a limiting rod (12) and a movable block (14); a movable groove is provided through the side of the mounting seat (10), and a connecting hole is provided at one end of the movable groove; the driving motor (11) is fixedly mounted on the back of one of the mounting seats (10), and the output end passes through the mounting seat (10); one end of the output end of the driving motor (11) is fixedly connected with a worm (13); one end of the worm (13) is sleeved with the connecting hole on the inner wall of the movable groove of the mounting seat (10); a limiting rod (12) is fixedly mounted on the inner wall of the movable groove of the mounting seat (10); a threaded hole is provided through the back of the movable block (14), and the worm (13) is threadedly connected; a hole is provided through the back of the movable block (14), and the limiting rod (12) is sleeved with the limiting rod (12); a connecting rod is fixedly mounted on the side of the movable block (14), and one end of the connecting rod is fixedly connected to the side of the fixing frame (9).

4. The automatic spot welding device for lithium battery protection board according to claim 3, characterized in that: Electric slide rails (8) are fixedly mounted on both ends of the top surface of the fixed frame (9), and a limiting frame (6) is fixedly mounted on the top surface of the slider of the electric slide rail (8).

5. The automatic spot welding device for lithium battery protection board according to claim 1, characterized in that: The loading assembly comprises a hopper (15), a conveying frame (21), a second electric push rod (23) and a push plate (22). The two side surfaces of the hopper (15) are respectively fixedly connected with a connecting frame, and the bottom surface of the connecting frame is fixedly connected to the top surface of the workbench (1). The inner wall of the hopper (15) is slightly larger than the protective plate. The bottom surface of the conveying frame (21) is fixedly connected to the top surface of the workbench (1) through a support rod and is located below the hopper (15). The distance between the inner wall of the conveying frame (21) and the bottom surface of the hopper (15) is just the thickness of a protective plate. The conveying frame (21) is aligned with the limiting frame (6). The top surface of the inner wall of the conveying frame (21) is fixedly connected with the second electric push rod (23) through a connecting rod. The second electric push rod (23) is fixedly installed with a push plate (22) at one end, and the push plate (22) is in contact with the inner wall of the conveying frame (21).

6. The automatic spot welding device for lithium battery protection board according to claim 5, characterized in that: A baffle (24) is fixedly mounted on the top surface of the push plate (22).

7. The automatic spot welding device for lithium battery protection board according to claim 1, characterized in that: The odor treatment component comprises a treatment cylinder (17), an air intake fan (20), a threaded cover (18) and an activated carbon filter plate (19); the treatment cylinder (17) is fixedly mounted on both ends of the top surface of the workbench (1) by means of fixing rods; one end of the arc-shaped surface of the treatment cylinder (17) is provided with a thread and is threadedly connected to the threaded cover (18); the activated carbon filter plate (19) is fixedly mounted on the inner wall of the threaded cover (18); and the air intake fan (20) is fixedly mounted on the inner wall of the treatment cylinder (17).

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