Soft package battery tab laser spot welding machine

Abstract

The utility model discloses a laser spot welding machine for a soft package battery tab, and relates to the technical field of soft package batteries. The top end of the bottom plate is fixedly connected with a base, the top end of the base is provided with a sliding groove, the interior of the sliding groove is rotationally connected with a first screw rod, the outer side of the first screw rod is in threaded connection with a placing plate, the bottom end of the placing plate is clamped in the sliding groove in a sliding mode, and one side of the base is fixedly provided with a servo motor. The driving end of the servo motor is fixedly connected with the first screw rod, and a plate groove is formed in the top end of the containing plate. A servo motor drives a first screw rod to rotate, meanwhile, a placing plate is driven to move towards one side of a first clamping plate, and when the placing plate moves till the movable clamping plate makes contact with a travel switch, the placing plate stops moving, so that the other tab of the soft package battery body is positioned, and the other tab of the soft package battery body is placed at the top end of a welding base; therefore, the two tabs of the soft package battery can be continuously welded, and the laser electric welding efficiency of the tabs of the soft package battery is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to soft package battery technical field, concretely is a kind of soft package battery pole ear laser spot welding machine. BACKGROUND

[0002] Under normal circumstances, a standard soft package battery has two pole ears, which are positive pole ear and negative pole ear. The positive pole ear is usually made of aluminum foil, while the negative pole ear is usually made of copper foil. The two pole ears are used to connect the positive and negative poles of the battery, so that current can flow out of or into the battery, thereby driving external devices to work or charge. During the manufacturing process of the battery, the pole ear will be precisely welded to the internal electrode of the battery to ensure good electrical connection and mechanical stability.

[0003] However, the traditional soft package battery pole ear laser spot welding machine needs to position the battery pole ear through a visual sensor and a complex program, which increases the complexity of operation and the cost input. To solve the above problems, the inventor proposes a soft package battery pole ear laser spot welding machine. UTILITY MODEL CONTENT

[0004] To solve the problem of automatic positioning of the battery pole ear, the utility model aims to provide a soft package battery pole ear laser spot welding machine.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: a soft package battery pole ear laser spot welding machine, comprising a bottom plate, the top end of the bottom plate is fixedly connected with a base, the top end of the base is provided with a sliding groove, the inside of the sliding groove is rotatably connected with a screw rod one, the outside of the screw rod one is threadedly connected with a placing plate, the bottom end of the placing plate is slidably connected in the sliding groove, one side of the base is fixedly installed with a servo motor, the driving end of the servo motor is fixedly connected with the screw rod one, the top end of the placing plate is provided with a plate groove, the inside of the plate groove is rotatably connected with a screw rod two, the outside of the screw rod two is threadedly connected with a moving clamp plate, the bottom end of the moving clamp plate is slidably connected in the plate groove, the top end of the placing plate is fixedly connected with a fixed clamp plate away from the moving clamp plate, the side of the placing plate away from the servo motor is fixedly installed with a stepping motor, the driving end of the stepping motor is fixedly connected with the screw rod two, the soft package battery body is clamped between the two moving clamp plates, and the two sides of the top end of the base are provided with limiting assemblies.

[0006] Preferably, the limiting assembly comprises a baffle, the baffle is fixedly connected at the top end of the base, one side of the baffle is fixedly connected with a fixed plate, one side of the fixed plate is threadedly connected with a bolt, one end of the bolt extends to the inside of the fixed plate and is rotatably connected with clamp plate one and clamp plate two respectively, the clamp plate one and the clamp plate two are slidably connected with the baffle, and the distance between the bottom surface of the clamp plate one and the top surface of the base is greater than the height of the placing plate.

[0007] Preferably, the top end of the base plate is fixedly connected with a vertical plate on the side close to the base, the top of the vertical plate is fixedly installed with an electric cylinder on the side close to the base, the piston rod of the electric cylinder is fixedly connected with a moving plate, and the moving plate is slidably connected on one side of the vertical plate.

[0008] Preferably, the side, away from the vertical plate, of the moving plate is fixedly connected with an L-shaped plate, the side, away from the moving plate, of the L-shaped plate is fixedly installed with a laser device, the top end of the base is fixedly connected with a welding seat below the laser device, the inner side of the L-shaped plate is provided with two symmetrical telescopic rods, the bottom end of each telescopic rod is movably penetrated through the L-shaped plate and fixedly connected with a pressing plate, the top surface of the pressing plate and the bottom surface of the L-shaped plate are both provided with springs, the springs are movably sleeved on the outer side of the telescopic rod, the top end of each telescopic rod is fixedly connected with a limiting block, and a through slot is arranged on the pressing plate.

[0009] Preferably, the side, away from the vertical plate, of the moving plate is fixedly connected with an L-shaped plate, the side, away from the moving plate, of the L-shaped plate is fixedly installed with a laser device, the top end of the base is fixedly connected with a welding seat below the laser device, the inner side of the L-shaped plate is provided with two symmetrical telescopic rods, the bottom end of each telescopic rod is movably penetrated through the L-shaped plate and fixedly connected with a pressing plate, the top surface of the pressing plate and the bottom surface of the L-shaped plate are both provided with springs, the springs are movably sleeved on the outer side of the telescopic rod, the top end of each telescopic rod is fixedly connected with a limiting block, and a through slot is arranged on the pressing plate.

[0010] Compared with the prior art, the utility model has the advantages of:

[0011] When the placing plate moves to the side of the movable clamping plate and contacts the travel switch, the movement of the placing plate is stopped, so that the other tab of the soft package battery body is positioned, and the other tab of the soft package battery body is placed on the top end of the welding seat, thereby realizing continuous welding operation on the two tabs of the soft package battery, and further improving the laser electric welding efficiency of the soft package battery tab. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0013] Fig. 1 It is a schematic diagram of the overall structure of the utility model.

[0014] Fig. 2 It is a partial sectional view of the utility model.

[0015] Fig. 3 It is a schematic diagram of the partial split structure of the utility model.

[0016] In the diagram: 1. Base plate; 2. Base; 3. Slide groove; 4. Screw 1; 5. Placement plate; 6. Plate groove; 7. Screw 2; 8. Moving clamp; 9. Baffle; 10. Fixing plate; 11. Bolt; 12. Clamp 1; 13. Clamp 2; 14. Horizontal contact switch; 15. Stepper motor; 16. Servo motor; 17. Welding seat; 18. Vertical plate; 19. Electric cylinder; 20. Moving plate; 21. L-shaped plate; 22. Telescopic rod; 23. Pressure plate; 24. Spring; 25. Through groove; 26. Limiting block; 27. Laser equipment; 28. Soft-pack battery body; 29. ​​Fixing clamp. Detailed Implementation

[0017] 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.

[0018] Example: Figs. 1-3 As shown, this utility model provides a laser spot welding machine for the tabs of a soft-pack battery, including a base plate 1, a base 2 fixedly connected to the top of the base plate 1, a groove 3 formed at the top of the base 2, a screw 4 rotatably connected inside the groove 3, a placement plate 5 threadedly connected to the outside of the screw 4, the bottom end of the placement plate 5 slidingly engaging in the groove 3, a servo motor 16 fixedly installed on one side of the base 2, the drive end of the servo motor 16 fixedly connected to the screw 4, and a plate groove 6 formed at the top of the placement plate 5. The internal rotating connection of the 6 is a screw 7, and the outer side of the screw 7 is threadedly connected to a movable clamping plate 8. The bottom end of the movable clamping plate 8 is slidably engaged in the plate groove 6. The top of the placement plate 5 is fixedly connected to a fixed clamping plate 29 on the side away from the movable clamping plate 8. The side of the placement plate 5 away from the servo motor 16 is fixedly installed with a stepper motor 15. The drive end of the stepper motor 15 is fixedly connected to the screw 7. The soft-pack battery body 28 is clamped between the two movable clamping plates 8. Limiting components are provided on both sides of the top of the base 2.

[0019] The limiting component includes a baffle 9, which is fixedly connected to the top of the base 2. A fixing plate 10 is fixedly connected to one side of the baffle 9. A bolt 11 is threadedly connected to one side of the fixing plate 10. One end of the bolt 11 extends to the inner side of the fixing plate 10 and is rotatably connected to a clamping plate 12 and a clamping plate 13, respectively. Both clamping plates 12 and 13 are slidably connected to the baffle 9.

[0020] By adopting the technical scheme, the distance between the second clamping plate 13 and the fixed plate 10 and the distance between the second clamping plate 13 and the first clamping plate 12 are adjusted according to the position of the tab of the soft package battery body 28 by rotating the bolt 11, and one side of the soft package battery body 28 is attached to the inner side of the fixed clamping plate 29, so as to limit the soft package battery body 28.

[0021] The top end of the base plate 1 is fixedly connected with a vertical plate 18 on the side close to the base 2, the top of the vertical plate 18 is fixedly installed with an electric cylinder 19 on the side close to the base 2, the piston rod of the electric cylinder 19 is fixedly connected with a moving plate 20, and the moving plate 20 is slidingly connected on one side of the vertical plate 18.

[0022] By adopting the technical scheme, the moving plate 20 is pushed to move vertically by the extension and retraction of the piston rod of the electric cylinder 19.

[0023] The side, away from the vertical plate 18, of the moving plate 20 is fixedly connected with an L-shaped plate 21, the side, away from the moving plate 20, of the L-shaped plate 21 is fixedly installed with a laser device 27, the top end of the base 2 and below the laser device 27 is fixedly connected with a welding seat 17, the inner side of the L-shaped plate 21 is provided with two symmetrically distributed telescopic rods 22, the bottom end of each telescopic rod 22 is movably penetrated through the L-shaped plate 21 and fixedly connected with a pressing plate 23, the top surface of the pressing plate 23 and the bottom surface of the L-shaped plate 21 are both provided with springs 24, the springs 24 are movably sleeved on the outer side of the telescopic rod 22, and the top end of each telescopic rod 22 is fixedly connected with a limiting block 26.

[0024] By adopting the technical scheme, when the tab of the soft package battery is welded, the laser device 27 is moved downward, the pressing plate 23 is also moved downward, when the pressing plate 23 moves to contact the tab of the soft package battery body 28, the laser device 27 continues to move downward and compresses the spring 24, the tab is limited by the elastic force of the spring 24, so that the tab is prevented from moving during the laser welding process.

[0025] The pressing plate 23 is provided with a through slot 25.

[0026] By adopting the technical scheme, the laser can pass through the through slot 25 to spot weld the tab.

[0027] The end of the side, close to each other, of the first clamping plate 12 and the second clamping plate 13 is fixedly installed with a limit switch 14, and the limit switch 14 is electrically connected with a servo motor 16.

[0028] By adopting the technical scheme, when the moving clamping plate 8 moves transversely to contact the limit switch 14, the servo motor 16 stops working, so as to position the position of the tab of the soft package battery body 28.

[0029] The distance between the bottom surface of the clamping plate 12 and the top surface of the base 2 is greater than the height of the placement plate 5.

[0030] By adopting the above technical scheme, the distance between the bottom surface of the clamping plate 12 and the top surface of the base 2 is greater than the height of the placement plate 5, so that the placement plate 5 can pass between the clamping plate 12 and the base 2.

[0031] Working principle: when laser spot welding is performed on the soft package battery tab, the distance between the clamping plate 13 and the fixed plate 10 and the distance between the clamping plate 13 and the clamping plate 12 are adjusted according to the position of the soft package battery body 28 tab by rotating the bolt 11, and the side of the soft package battery body 28 is attached to the inner side of the fixed clamping plate 29, so as to position the soft package battery body 28, and then the soft package battery body 28 is placed on the top end of the placement plate 5 and between the moving clamping plate 8 and the fixed clamping plate 29, the screw rod 7 is driven to rotate by the stepping motor 15, and the moving clamping plate 8 is driven to move to one side of the fixed clamping plate 29, so as to clamp and fix the soft package battery body 28.

[0032] Then the moving plate 20 is moved downward by the extension of the piston rod of the electric cylinder 19, and the laser equipment 27 and the pressing plate 23 are moved downward, when the pressing plate 23 moves to contact the tab of the soft package battery body 28, the laser equipment 27 continues to move downward and compresses the spring 24, and the spring 24 is used to limit the tab by the elastic force, so as to prevent the tab from moving during laser welding, and the through slot 25 is arranged to enable the laser to pass through the through slot 25 to spot weld the tab.

[0033] After one tab is welded, the screw rod 1 is driven to rotate by the servo motor 16, and the placement plate 5 is moved to one side of the clamping plate 12, and when the placement plate 5 moves to contact the travel switch 14, the movement is stopped, so that the other tab of the soft package battery body 28 is positioned, and the other tab of the soft package battery body 28 is placed on the top end of the welding seat 17, and the laser equipment 27 is used for welding operation.

[0034] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. A soft package battery tab laser spot welding machine comprising a base plate (1), characterized in that: A base (2) is fixedly connected to the top of the base plate (1). A groove (3) is provided at the top of the base (2). A screw (4) is rotatably connected inside the groove (3). A placement plate (5) is threadedly connected to the outside of the screw (4). The bottom end of the placement plate (5) is slidably engaged in the groove (3). A servo motor (16) is fixedly installed on one side of the base (2). The drive end of the servo motor (16) is fixedly connected to the screw (4). A plate groove (6) is provided at the top of the placement plate (5). A screw (2) is rotatably connected inside the plate groove (6). (7) The outer side of the screw (7) is threaded with a movable clamping plate (8). The bottom end of the movable clamping plate (8) is slidably engaged in the plate groove (6). The top of the placement plate (5) is fixedly connected to a fixed clamping plate (29) on the side away from the movable clamping plate (8). The side of the placement plate (5) away from the servo motor (16) is fixedly installed with a stepper motor (15). The driving end of the stepper motor (15) is fixedly connected to the screw (7). The soft-pack battery body (28) is clamped between the two movable clamping plates (8). Limiting components are provided on both sides of the top of the base (2).

2. The soft-pack battery tab laser spot welder of claim 1, wherein, The limiting component includes a baffle (9), which is fixedly connected to the top of the base (2). A fixing plate (10) is fixedly connected to one side of the baffle (9). A bolt (11) is threadedly connected to one side of the fixing plate (10). One end of the bolt (11) extends to the inner side of the fixing plate (10) and is rotatably connected to a clamping plate (12) and a clamping plate (13). Both clamping plates (12) and clamping plates (13) are slidably connected to the baffle (9).

3. The soft-pack battery tab laser spot welder of claim 1, wherein, A vertical plate (18) is fixedly connected to the top of the base plate (1) near the side of the base (2). An electric cylinder (19) is fixedly installed on the top of the vertical plate (18) near the side of the base (2). A movable plate (20) is fixedly connected to the piston rod of the electric cylinder (19). The movable plate (20) is slidably engaged with one side of the vertical plate (18).

4. The soft-pack battery tab laser spot welder of claim 3, wherein, An L-shaped plate (21) is fixedly connected to the side of the movable plate (20) away from the vertical plate (18). A laser device (27) is fixedly installed on the side of the L-shaped plate (21) away from the movable plate (20). A welding seat (17) is fixedly connected to the top of the base (2) and below the laser device (27). Two symmetrically distributed telescopic rods (22) are provided on the inner side of the L-shaped plate (21). The bottom end of each telescopic rod (22) movably passes through the L-shaped plate (21) and is fixedly connected to a pressure plate (23). A spring (24) is provided on the top surface of the pressure plate (23) and the bottom surface of the L-shaped plate (21). The spring (24) is movably sleeved on the outside of the telescopic rod (22). A limit block (26) is fixedly connected to the top of each telescopic rod (22).

5. The soft-pack battery tab laser spot welder of claim 4, wherein, The pressure plate (23) is provided with a through groove (25).

6. The soft-pack battery tab laser spot welder of claim 2, wherein, The one end of the clamping plate one (12) and the clamping plate two (13) near each other is fixedly installed with a row of touch switches (14), the row of touch switches (14) are electrically connected with a servo motor (16).

7. The soft-pack battery tab laser spot welder of claim 2, wherein, The distance between the bottom surface of the clamping plate one (12) and the top surface of the base (2) is greater than the height of the placing plate (5).

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