A lithium battery pack welding auxiliary positioning device

Abstract

This utility model relates to the field of battery pack welding, specifically a lithium battery pack welding auxiliary positioning device, including a support plate, a processing table, a clamping mechanism, a pressing mechanism, and a moving mechanism. The clamping mechanism includes a mounting plate, a first clamping assembly, a second clamping assembly, two first clamping plates, and two second clamping plates. The pressing mechanism includes two pressing blocks, two positioning assemblies, and two resetting assemblies. The moving mechanism includes a movable block, a lead screw slide, and a lifting assembly. A controller controls a first motor to rotate, which in turn drives a first rotating rod to rotate, causing the two first clamping plates to clamp and fix the two sides of the lithium battery pack, keeping the lithium battery pack aligned front to back for easy placement of welding pieces. The controller then controls a second motor to rotate, causing the two second clamping plates to move on the processing table and clamp the other two sides of the lithium battery pack. Together with the first clamping assemblies, the device can position and clamp the lithium battery pack on all four sides.

Description

Technical Field

[0001] This utility model relates to the field of battery pack welding, specifically a lithium battery pack welding auxiliary positioning device. Background Technology

[0002] Lithium-ion battery pack welding is the process of connecting and assembling multiple battery cells into a battery pack through welding. Welding is one of the key steps in the production of lithium-ion battery packs, mainly involving the connection of components such as battery cells, battery protection boards, and battery connectors. Welding technology directly affects the safety and reliability of the battery pack.

[0003] During the welding process of existing lithium battery packs, various vibrations or accidental contact due to improper operation by workers can cause the welding pieces to shift during the welding process, resulting in the welding pieces not being able to fit tightly with the battery cell tabs, thus affecting the welding effect;

[0004] Existing equipment often uses a fixed-size frame to fix and limit a fixed number of lithium batteries when fixing and positioning lithium battery packs. When welding lithium battery packs of different sizes, it is often necessary to replace the frame, which is time-consuming and labor-intensive. Utility Model Content

[0005] The purpose of this invention is to provide an auxiliary positioning device for welding lithium battery packs to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A lithium battery pack welding auxiliary positioning device includes a support plate, a processing table, a clamping mechanism, a pressing mechanism, and a moving mechanism. The processing table is disposed above the base plate, and the clamping mechanism is disposed between the processing table and the support plate.

[0008] The clamping mechanism includes a mounting plate, a first clamping assembly, a second clamping assembly, two first clamping plates, and two second clamping plates. The first clamping assembly is disposed above the support plate, the mounting plate is disposed above the first clamping assembly, the second clamping assembly is disposed above the mounting plate, the two first clamping plates are fixedly mounted on the first clamping assembly, and the two second clamping plates are fixedly mounted on the second clamping assembly.

[0009] The clamping mechanism includes two clamping blocks, two positioning components, and two reset components;

[0010] The moving mechanism includes a movable block, a lead screw slide, and a lifting assembly. A vertical plate is fixedly installed on the top of the processing table. The lead screw slide is fixedly installed on the outer wall of the vertical plate. A first slider is slidably installed on the outer wall of the lead screw slide. The lifting assembly is installed on the outer wall of the first slider. The movable block is fixedly installed on the lifting assembly.

[0011] As a further embodiment of this utility model: the first clamping assembly includes a first motor, a first bracket, a first rotating rod, two first hinge rods and two first sliding frames. The first bracket is fixedly mounted on the bottom surface of the mounting plate, the first motor is fixedly mounted below the first bracket, the first rotating rod is rotatably mounted above the mounting plate, each first sliding frame is slidably mounted on the processing table, both ends of each first hinge rod are rotatably connected to one end of the first rotating rod and one of the first sliding frames, and each first clamping plate is fixedly mounted above one of the first sliding frames.

[0012] As a further embodiment of this utility model: the second clamping assembly includes a second motor, a second rotating rod, a second bracket, two second hinge rods and two second sliding frames. The second bracket is fixedly mounted on the bottom surface of the processing table, the second motor is fixedly mounted on the bottom surface of the second bracket, the second rotating rod is rotatably mounted above the second bracket, each second sliding frame is slidably mounted on the processing table, both ends of each second hinge rod are rotatably connected to one end of the second rotating rod and one of the second sliding frames, and each second clamping plate is fixedly mounted above one of the second sliding frames.

[0013] As a further embodiment of this utility model: each positioning component includes a fixed plate, an electric push rod, a wedge block, a base plate, a support frame, a pressure rod, a roller, the fixed plate being slidably disposed on one side of the movable block, the base plate being fixedly disposed on the bottom surface of the fixed plate, the electric push rod being disposed on one side of the fixed plate, the wedge block being slidably disposed on the base plate and fixedly connected to the output end of the electric push rod, the support frame being fixedly disposed on the top of the base plate, the pressure rod being rotatably disposed above the support frame, the roller being rotatably disposed at one end of the pressure rod, and the end of the pressure rod away from the pressure rod being fixedly connected to the pressure block.

[0014] As a further embodiment of this utility model: each reset assembly includes two springs, two upper connecting seats and two lower connecting seats. The two upper connecting seats are respectively fixedly disposed on both sides of the pressure rod. Each lower connecting seat is disposed below one of the upper connecting seats and fixedly disposed on the top of the base plate. Each spring is fixedly disposed between one upper connecting seat and one lower connecting seat.

[0015] As a further embodiment of this utility model: a slide rail is provided on the top of the support plate, and a slide bar is fixedly provided on the bottom surface of the wedge block, with the slide bar slidably disposed within the slide rail.

[0016] As a further embodiment of this utility model: the top of the processing table is provided with two first sliding grooves and two second sliding grooves, the interior of each first sliding groove is slidably connected to a first sliding frame, and the interior of each second sliding groove is slidably connected to a second sliding frame.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model discloses a lithium battery pack welding auxiliary positioning device. A controller controls a first motor to rotate, which in turn rotates a first rotating rod, causing two first hinged rods to move. These rods, in turn, move two first sliding frames to clamp and fix the two sides of the lithium battery pack, keeping the pack aligned front to back for easy placement of welding pieces. The controller then controls a second motor to rotate, which in turn rotates a second rotating rod, causing two second hinged rods to move. These second sliding frames then move two second clamping plates on a processing table to clamp the other two sides of the lithium battery pack. Combined with the first clamping assembly, the device can clamp and position the lithium battery pack on all four sides, facilitating the placement of welding pieces on top. In practical use, the number of lithium batteries can be increased or decreased as needed. The clamping mechanism can clamp different numbers of lithium batteries, making operation convenient.

[0019] 2. The present invention provides a lithium battery pack welding auxiliary positioning device. After the welding pieces are placed, the moving mechanism drives the pressing mechanism to descend and press and fix the welding pieces, preventing the welding pieces from moving due to vibration or other factors during the welding process, which would cause the welding pieces to shift and affect the welding effect.

[0020] 3. The lithium battery pack welding auxiliary positioning device of this utility model, when the welding piece is replaced, controls the electric push rod to retract, which drives the wedge block to return. At this time, the spring contracts, which can drive the pressure rod back to the initial position, making it convenient to fix the welding piece again. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0022] Figure 2 This utility model Figure 1 A magnified structural diagram at point A.

[0023] Figure 3 This is a schematic diagram of the structure of this utility model without the support plate.

[0024] Figure 4 This is a schematic diagram of the structure of the second clamping assembly of this utility model.

[0025] Figure 5 This is a schematic diagram of the structure of the first clamping component and the second clamping component of this utility model.

[0026] Figure 6 This is a front view structural diagram of the clamping mechanism of this utility model.

[0027] Figure 7 This is a schematic diagram of the positioning component and the reset component of this utility model.

[0028] The components include: 1. Support plate; 2. Processing table; 3. First clamping plate; 4. Second clamping plate; 6. Mounting plate; 7. Pressure block; 8. First motor; 9. First bracket; 10. First rotating rod; 11. First hinge rod; 12. First sliding frame; 13. Second motor; 14. Second rotating rod; 15. Second bracket; 16. Second hinge rod; 17. Second sliding frame; 18. Fixed plate; 19. Electric push rod; 20. Wedge block. ; 21. Base plate; 22. Pressure rod; 23. Roller; 24. Spring; 25. Slide rail; 26. Slide bar; 27. First slide groove; 28. Second slide groove; 29. ​​Movable block; 30. Screw slide table; 31. First slider; 32. Second slider; 33. Electric slide table; 34. Cylinder; 35. Guide rail; 36. Slide plate; 37. Support frame; 38. L-shaped plate; 39. Vertical plate; 40. Upper connecting seat; 41. Lower connecting seat. Detailed Implementation

[0029] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0030] The present invention provides the following preferred embodiments:

[0031] Example 1, as Figures 1-7 As shown, a lithium battery pack welding auxiliary positioning device includes a support plate 1, a processing table 2, a clamping mechanism, a pressing mechanism and a moving mechanism. The processing table 2 is disposed above the support plate 1, and the clamping mechanism is disposed between the processing table 2 and the support plate 1.

[0032] The clamping mechanism includes a mounting plate 6, a first clamping assembly, a second clamping assembly, two first clamping plates 3, and two second clamping plates 4. The first clamping assembly is located above the support plate 1, the mounting plate 6 is located above the first clamping assembly, the second clamping assembly is located above the mounting plate 6, the two first clamping plates 3 are fixedly mounted on the first clamping assembly, and the two second clamping plates 4 are fixedly mounted on the second clamping assembly.

[0033] The clamping mechanism includes two clamping blocks 7, two positioning components, and two reset components;

[0034] The moving mechanism includes a movable block 29, a lead screw slide 30, and a lifting assembly. A vertical plate 39 is fixedly installed on the top of the processing table 2. The lead screw slide 30 is fixedly installed on the outer wall of the vertical plate 39. A first slider 31 is slidably installed on the outer wall of the lead screw slide 30. The lifting assembly is installed on the outer wall of the first slider 31. The movable block 29 is fixedly installed on the lifting assembly.

[0035] like Figures 1-7As shown, the first clamping assembly includes a first motor 8, a first bracket 9, a first rotating rod 10, two first hinge rods 11, and two first sliding frames 12. The first bracket 9 is fixedly mounted on the bottom surface of the mounting plate 6. The first motor 8 is fixedly mounted below the first bracket 9. The first rotating rod 10 is rotatably mounted above the mounting plate 6. Each first sliding frame 12 is slidably mounted on the processing table 2. The two ends of each first hinge rod 11 are rotatably connected to one end of the first rotating rod 10 and one of the first sliding frames 12, respectively. Each first clamping plate 3 is fixedly mounted above one of the first sliding frames 12.

[0036] When welding lithium battery packs is required, multiple lithium batteries are placed above the processing table 2, and the lithium batteries are positioned by a clamping mechanism to prevent misalignment of the lithium battery pack and thus welding errors.

[0037] The controller controls the first motor 8 to rotate, which drives the first rotating rod 10 to rotate, thereby moving the two first hinge rods 11. Then, the two first sliding frames 12 drive the two first clamping plates 3 to clamp and fix the two sides of the lithium battery pack, keeping the lithium battery pack aligned front and back, facilitating the placement of welding pieces and preventing the welding pieces from shifting.

[0038] like Figures 1-7 As shown, the second clamping assembly includes a second motor 13, a second rotating rod 14, a second bracket 15, two second hinge rods 16, and two second sliding frames 17. The second bracket 15 is fixedly mounted on the bottom surface of the processing table 2, the second motor 13 is fixedly mounted on the bottom surface of the second bracket 15, the second rotating rod 14 is rotatably mounted above the second bracket 15, each second sliding frame 17 is slidably mounted on the processing table 2, and both ends of each second hinge rod 16 are rotatably connected to one end of the second rotating rod 14 and one of the second sliding frames 17, respectively. Each second clamping plate 4 is fixedly mounted above one of the second sliding frames 17.

[0039] The controller controls the second motor 13 to rotate, which drives the second rotating rod 14 to rotate, thereby moving the two second hinge rods 16. Then, the two second sliding frames 17 drive the two second clamping plates 4 to move on the processing table 2, clamping the other two sides of the lithium battery pack. With the first clamping assembly, the lithium battery pack can be positioned and clamped on all four sides, which facilitates the placement of welding pieces on top of the lithium battery pack, allowing the lithium battery pack to be welded better.

[0040] like Figures 1-7As shown, each positioning component includes a fixed plate 18, an electric push rod 19, a wedge block 20, a base plate 21, a support frame 37, a pressure rod 22, a roller 23, a fixed plate 18 slidably disposed on one side of the movable block 29, a base plate 21 fixedly disposed on the bottom surface of the fixed plate 18, an electric push rod 19 disposed on one side of the fixed plate 18, a wedge block 20 slidably disposed on the base plate 21 and fixedly connected to the output end of the electric push rod 19, a support frame 37 fixedly disposed on the top of the base plate 21, a pressure rod 22 rotatably disposed above the support frame 37, a roller 23 rotatably disposed at one end of the pressure rod 22, and the end of the pressure rod 22 away from the pressure rod 22 fixedly connected to the pressure block 7;

[0041] After the welding pieces are placed, the moving mechanism drives the pressing mechanism to descend, pressing and fixing the welding pieces to prevent them from moving during the welding process, which could cause them to shift and affect the welding effect.

[0042] The slide plate 36 is lowered by the cylinder 34, which drives the movable block 29 to descend, thereby driving the two positioning components and two reset components to descend. When the positioning components descend to the appropriate position, the electric push rod 19 is controlled to push the wedge block 20 forward, so that the wedge block 20 moves below the roller 23. As the wedge block 20 moves forward, it will push up the pressure rod 22. The pressure rod 22 will rotate around the support frame 37, driving the pressure block 7 to press down and fix the welding piece. After the welding piece is fixed, the welding piece is welded by two welding heads fixed below the movable block 29.

[0043] like Figures 1-7 As shown, each reset assembly includes two springs 24, two upper connecting seats 40 and two lower connecting seats 41. The two upper connecting seats 40 are respectively fixedly disposed on both sides of the pressure rod 22. Each lower connecting seat 41 is disposed below an upper connecting seat 40 and is fixedly disposed on the top of the base plate 21. Each spring 24 is fixedly disposed between an upper connecting seat 40 and a lower connecting seat 41.

[0044] When the pressure rod 22 rotates, it causes the pressure block 7 to press down and fix the welding piece. At this time, the spring 24 is stretched. When the pressure block 7 replaces the welding piece, the electric push rod 19 is retracted by controlling it, which drives the wedge block 20 back. At this time, the spring 24 contracts and drives the pressure rod 22 back to the initial position, which is convenient for fixing the welding piece again.

[0045] like Figures 1-7 As shown, a slide rail 25 is provided on the top of the base plate 21, and a slide bar 26 is fixedly provided on the bottom surface of the wedge block 20. The slide bar 26 is slidably disposed in the slide rail 25. The slide bar 26 fixed on the bottom surface of the wedge block 20 is limited by the slide rail 25 on the top of the base plate 21 to prevent the wedge block 20 from shifting, which would prevent the pressure rod 22 from being lifted.

[0046] like Figures 1-7 As shown, the top of the processing table 2 has two first slide grooves 27 and two second slide grooves 28. The interior of each first slide groove 27 is slidably connected to a first sliding frame 12, and the interior of each second slide groove 28 is slidably connected to a second sliding frame 17.

[0047] By opening two first slide grooves 27 and two second slide grooves 28 on the top of the processing table 2, each first slide frame 12 and each second slide frame 17 can slide in the corresponding groove.

[0048] like Figures 1-7 As shown, the lifting assembly includes a cylinder 34, an electric slide 33, and a guide rail 35. The guide rail 35 is fixedly mounted on the outer wall of the first slider 31. A second slider 32 is slidably mounted on the outer wall of the guide rail 35. The electric slide 33 is fixedly mounted on the outer wall of the second slider 32. An L-shaped plate 38 is fixedly mounted on the top of the guide rail 35. The cylinder 34 is inserted into the top of the L-shaped plate 38, and its output end is fixedly connected to the outer wall of the electric slide 33. A sliding plate 36 is slidably mounted on the outer wall of the electric slide 33. The movable block 29 is fixedly connected to the sliding plate 36. The cylinder 34 is electrically connected to the controller.

[0049] The movable block 29 is moved by the electric slide table 33, which facilitates welding on both sides of the lithium battery pack. The controller controls the cylinder 34 to drive the guide rail 35 to rise and fall, thereby driving the clamping mechanism to descend and position the welding piece.

Claims

1. A lithium battery pack welding auxiliary positioning device, comprising a support plate (1), characterized in that, It also includes a processing table (2), a clamping mechanism, a pressing mechanism and a moving mechanism. The processing table (2) is located above the support plate (1), and the clamping mechanism is located between the processing table (2) and the support plate (1). The clamping mechanism includes a mounting plate (6), a first clamping assembly, a second clamping assembly, two first clamping plates (3), and two second clamping plates (4). The first clamping assembly is located above the support plate (1), the mounting plate (6) is located above the first clamping assembly, the second clamping assembly is located above the mounting plate (6), the two first clamping plates (3) are fixedly mounted on the first clamping assembly, and the two second clamping plates (4) are fixedly mounted on the second clamping assembly. The clamping mechanism includes two clamping blocks (7), two positioning components and two reset components; The moving mechanism includes a movable block (29), a lead screw slide (30), and a lifting assembly. A vertical plate (39) is fixedly provided on the top of the processing table (2). The lead screw slide (30) is fixedly provided on the outer wall of the vertical plate (39). A first slider (31) is slidably provided on the outer wall of the lead screw slide (30). The lifting assembly is provided on the outer wall of the first slider (31). The movable block (29) is fixedly provided on the lifting assembly.

2. The lithium battery pack welding auxiliary positioning device according to claim 1, characterized in that, The first clamping assembly includes a first motor (8), a first bracket (9), a first rotating rod (10), two first hinge rods (11) and two first sliding frames (12). The first bracket (9) is fixedly mounted on the bottom surface of the mounting plate (6). The first motor (8) is fixedly mounted below the first bracket (9). The first rotating rod (10) is rotatably mounted above the mounting plate (6). Each first sliding frame (12) is slidably mounted on the processing table (2). The two ends of each first hinge rod (11) are rotatably connected to one end of the first rotating rod (10) and one of the first sliding frames (12), respectively. Each first clamping plate (3) is fixedly mounted above one of the first sliding frames (12).

3. The lithium battery pack welding auxiliary positioning device according to claim 2, characterized in that, The second clamping assembly includes a second motor (13), a second rotating rod (14), a second bracket (15), two second hinge rods (16) and two second sliding frames (17). The second bracket (15) is fixedly mounted on the bottom surface of the processing table (2). The second motor (13) is fixedly mounted on the bottom surface of the second bracket (15). The second rotating rod (14) is rotatably mounted above the second bracket (15). Each second sliding frame (17) is slidably mounted on the processing table (2). The two ends of each second hinge rod (16) are rotatably connected to one end of the second rotating rod (14) and one of the second sliding frames (17), respectively. Each second clamping plate (4) is fixedly mounted above one of the second sliding frames (17).

4. The lithium battery pack welding auxiliary positioning device according to claim 3, characterized in that, Each positioning component includes a fixed plate (18), an electric push rod (19), a wedge block (20), a base plate (21), a support frame (37), a pressure rod (22), a roller (23), a fixed plate (18) slidably disposed on one side of the movable block (29), a base plate (21) fixedly disposed on the bottom surface of the fixed plate (18), an electric push rod (19) disposed on one side of the fixed plate (18), a wedge block (20) slidably disposed on the base plate (21), and the wedge block (20) is fixedly connected to the output end of the electric push rod (19), a support frame (37) fixedly disposed on the top of the base plate (21), a pressure rod (22) rotatably disposed above the support frame (37), a roller (23) rotatably disposed at one end of the pressure rod (22), and the end of the pressure rod (22) away from the pressure rod (22) is fixedly connected to the pressure block (7).

5. The lithium battery pack welding auxiliary positioning device according to claim 4, characterized in that, Each reset assembly includes two springs (24), two upper connecting seats (40) and two lower connecting seats (41). The two upper connecting seats (40) are fixedly disposed on both sides of the pressure rod (22). Each lower connecting seat (41) is disposed below an upper connecting seat (40) and is fixedly disposed on the top of the base plate (21). Each spring (24) is fixedly disposed between an upper connecting seat (40) and a lower connecting seat (41).

6. The lithium battery pack welding auxiliary positioning device according to claim 5, characterized in that, The top of the base plate (21) is provided with a slide rail (25), and the bottom surface of the wedge block (20) is fixedly provided with a slide bar (26), which is slidably disposed in the slide rail (25).

7. The lithium battery pack welding auxiliary positioning device according to claim 6, characterized in that, The top of the processing table (2) has two first slides (27) and two second slides (28). The interior of each first slide (27) is slidably connected to a first sliding frame (12), and the interior of each second slide (28) is slidably connected to a second sliding frame (17).

8. The lithium battery pack welding auxiliary positioning device according to claim 7, characterized in that, The lifting assembly includes a cylinder (34), an electric slide (33), and a guide rail (35). The guide rail (35) is fixed on the outer wall of the first slider (31). A second slider (32) is slidably mounted on the outer wall of the guide rail (35). The electric slide (33) is fixed on the outer wall of the second slider (32). An L-shaped plate (38) is fixedly mounted on the top of the guide rail (35). The cylinder (34) is inserted into the top of the L-shaped plate (38), and its output end is fixedly connected to the outer wall of the electric slide (33). A sliding plate (36) is slidably mounted on the outer wall of the electric slide (33). A movable block (29) is fixedly connected to the sliding plate (36). The cylinder (34) is electrically connected to the controller.

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