Clamping tool for production and welding of lithium battery pack

Abstract

The utility model discloses a clamping tool for producing and welding a lithium battery pack, which comprises a base, rotating wheels are mounted on two sides of the bottom end of the base, and a lifting mechanism is mounted in the middle of the bottom end of a worktable. The threaded rod penetrates through the middle position of the mounting plate, the threaded rod moves to drive the limiting plate to move, the limiting plate moves to drive the moving block at the bottom end to move, the moving block can be made of rubber materials, when a lithium battery is clamped, the lithium battery is placed at the top end of the workbench to block an air hole, and then when the moving block moves, the air hole is blocked. When the lithium battery is clamped, gas in the moving groove can be exhausted through the through hole, after the gas in the moving groove is exhausted, negative pressure can be generated by air pressure difference in the moving groove, and the lithium battery at the top end is sucked through the air hole, so that the lithium battery can be prevented from deviating before being clamped; in this way, the purpose that the clamping tool for lithium battery pack production welding is convenient for pre-pressing a lithium battery is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery pack production, in particular to a clamping tool used for lithium battery pack production welding. Background Art

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as positive / negative electrode materials and non-aqueous electrolyte solutions. Due to the very active chemical properties of lithium metal, the processing, storage, and use of lithium metal have very high environmental requirements. With the development of science and technology, lithium batteries have become mainstream. Lithium-ion batteries do not contain metallic lithium and are rechargeable. When producing lithium battery packs, lithium battery packs need to be welded. Welding, also known as welding, is a manufacturing process and technology that uses heating, high temperature or high pressure to join metals or other thermoplastic materials such as plastics. When welding lithium battery packs, a clamping tool for lithium battery pack production welding is needed to clamp the lithium battery.

[0003] To this end, China's patent application number is CN212601512U, which discloses that the utility model discloses a clamping tool for lithium battery assembly, including a bottom plate, a fixed plate installed at one end of the bottom plate, a first side plate fixed to one side of the fixed plate, a slide groove is provided on the fixed plate, a second side plate is provided for sliding in the slide groove, a through groove is provided on the first side plate and the second side plate, a push plate is provided for sliding in the through groove, and a plurality of grooves for fixing lithium batteries are evenly distributed on the fixed plate; a driving mechanism for driving the push plate to translate along the through groove is also installed on the bottom plate. The second side plate in the clamping tool for lithium battery assembly can be adjusted by sliding along the slide groove, so that it is suitable for the assembly of lithium batteries with different combinations and arrangements. The push plate is driven to translate by the driving cylinder to achieve fixed clamping of the lithium battery, and the clamping effect is stable and reliable; a groove is provided on the fixed plate to limit the lithium battery to prevent it from moving or tipping over at will, thereby ensuring the stability of the assembly process.

[0004] The above-mentioned prior art fixing plate is provided with a groove to limit the lithium battery to prevent it from moving or tipping over at will, thereby ensuring the stability of the assembly process. However, the clamping tooling used for the production and welding of lithium battery packs is difficult to pre-press the lithium battery. When clamping the lithium battery, the lithium battery may be offset, affecting the clamping of the lithium battery. Utility Model Content

[0005] The utility model aims to provide a clamping tool for lithium battery pack production welding, so as to solve the defect that the existing clamping tool for lithium battery pack production welding is difficult to pre-press the lithium battery.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a clamping tool for lithium battery pack production welding, comprising a base;

[0007] Rotating wheels are installed on both sides of the bottom of the base, supporting structures are installed on both sides of the base, and a telescopic rod is installed on the top of the base;

[0008] A workbench is installed at the top of the telescopic rod, a negative pressure structure is installed inside the workbench, and the negative pressure structure includes a moving groove, a moving block, a through hole, an air hole and a filter screen, the moving groove is arranged inside the workbench, a moving block is installed inside the moving groove, a through hole is arranged at the bottom of the moving groove, an air hole is arranged at the top of the moving groove, a filter screen is installed inside the air hole, and a mounting plate is installed at the top of the workbench;

[0009] A threaded rod is passed through the middle position of the mounting plate, a rotating wheel is installed on one side of the threaded rod, a limiting plate is installed on one side of the threaded rod, and a lifting mechanism is installed at the middle position of the bottom end of the workbench.

[0010] When in use, you can first grab the rotating wheel and rotate it. The rotation of the rotating wheel drives the threaded rod to rotate, which can drive the threaded rod to move. The movement of the threaded rod will drive the limit plate to move. The movement of the limit plate can clamp the lithium battery in the middle to clamp and fix the lithium battery. The anti-slip pattern can enhance the friction of the support foot and make the limit more stable.

[0011] Preferably, the outer diameter of the moving block is smaller than the inner diameter of the moving groove, and the moving block and the moving groove form a sliding structure, and the moving block can slide inside the moving groove.

[0012] Preferably, the supporting structure includes a fixed plate, a support foot, an anti-skid pad, a screw and a rotating block, the fixed plate is installed on both sides of the base, a screw passes through the middle position of the fixed plate, and a rotating block is installed on the top of the screw, and a support foot is installed on the bottom end of the screw, the fixed plate and the screw form a threaded connection, the rotating block can be turned to drive the screw to rotate, the rotation of the screw can drive the screw to rise and fall, and the lifting of the screw can drive the support foot to rise and fall, the base can be moved by the rotating wheel, and when the device needs to be fixed, the height of the support foot can be adjusted to allow the support foot to lift the device so that the rotating wheel no longer touches the ground, and the device can be fixed.

[0013] Preferably, an anti-skid pad is installed at the bottom end of the support leg, and the anti-skid pad is symmetrically distributed about the central axis of the base, and the anti-skid pad can enhance the friction of the support leg.

[0014] Preferably, the lifting mechanism includes a hydraulic cylinder, a telescopic push rod and a push plate. The hydraulic cylinder is installed at the middle position of the top of the base. The telescopic push rod is installed on the top of the hydraulic cylinder, and the push plate is installed on the top of the telescopic push rod. When the hydraulic cylinder is working, the telescopic push rod can be driven to extend and retract. The extension and retraction of the telescopic push rod can drive the push plate to be lifted and lowered. The lifting and lowering of the push plate can drive the workbench to be lifted and lowered, and the height of the workbench can be adjusted so that the workbench can adapt to different situations. The telescopic rod can be extended and retracted, and the telescopic rod can prevent the workbench from being offset.

[0015] Preferably, external threads are evenly arranged on the outer side wall of the threaded rod, internal threads cooperating with the external threads are evenly arranged on the inner side wall of the mounting plate, the threaded rod and the mounting plate are threadedly connected, and the position of the threaded rod can be adjusted by rotating the threaded rod.

[0016] Preferably, one side of the limiting plate is provided with anti-skid patterns, and the anti-skid patterns are arranged at equal intervals on one side of the limiting plate, and the anti-skid patterns can enhance the friction of the limiting plate.

[0017] The clamping tool for lithium battery pack production welding provided by the utility model has the advantages that: by passing through a threaded rod at the middle position of the mounting plate, the rotating wheel can be grasped and rotated, and the rotating wheel rotates to drive the threaded rod to rotate, which can drive the threaded rod to move, and the threaded rod moves to drive the limit plate to move, and the limit plate moves to drive the moving block at the bottom to move, and the moving block can be made of rubber material. When the lithium battery is clamped, the lithium battery is placed on the top of the workbench to block the air hole, and then when the moving block moves, the gas inside the moving groove will be discharged through the through hole. After the gas inside the moving groove is discharged, the air pressure difference inside the moving groove will generate negative pressure, and the lithium battery at the top will be sucked through the air hole, so that the lithium battery can be prevented from being offset before clamping, and the filter can prevent dust from entering the inside of the moving groove, so as to achieve the purpose of pre-pressing the lithium battery by the clamping tool for lithium battery pack production welding;

[0018] By installing a hydraulic cylinder on the top of the base, the hydraulic cylinder can drive the telescopic push rod to extend and retract, and the extension and retraction of the telescopic push rod can drive the push plate to rise and fall, and the lifting and lowering of the push plate can drive the workbench to rise and fall, so as to adjust the height of the workbench, so that the workbench can adapt to different situations. The telescopic rod can be extended and retracted, and the telescopic rod can prevent the workbench from being offset, so as to achieve the purpose of facilitating the adjustment of the height of the workbench for the production and welding of lithium battery packs;

[0019] By installing fixed plates on both sides of the base, the fixed plates and the screw form a threaded connection, and the rotating block can be turned to drive the screw to rotate. The rotation of the screw can drive the screw to rise and fall, and the lifting of the screw can drive the support legs to rise and fall. The base can be moved by the rotating wheel. When the device needs to be fixed, the height of the support legs can be adjusted to allow the support legs to lift the device so that the rotating wheel no longer touches the ground, and the device can be fixed. In this way, the clamping tooling used for lithium battery pack production welding can be used to facilitate the fixation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0021] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model in a top view;

[0022] Figure 3 For the utility model Figure 1 A schematic diagram of the enlarged structure of the local section at point A in the middle;

[0023] Figure 4 It is a three-dimensional structural schematic diagram of the lifting mechanism of the utility model;

[0024] Figure 5 It is a schematic diagram of a partial cross-sectional structure of the support structure of the utility model.

[0025] Explanation of the reference numerals in the figure: 1. workbench; 2. negative pressure structure; 201. moving groove; 202. moving block; 203. through hole; 204. air hole; 205. filter; 3. telescopic rod; 4. supporting structure; 401. fixed plate; 402. supporting foot; 403. anti-skid pad; 404. screw; 405. rotating block; 5. base; 6. lifting mechanism; 601. hydraulic cylinder; 602. telescopic push rod; 603. push plate; 7. rotating wheel; 8. threaded rod; 9. rotating wheel; 10. mounting plate; 11. limit plate; 12. anti-skid pattern. DETAILED DESCRIPTION

[0026] 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.

[0027] See also Figure 1-Figure 5 The utility model provides an embodiment: a clamping tool for lithium battery pack production welding, including a base 5.

[0028] Rotating wheels 7 are installed on both sides of the bottom end of the base 5, and supporting structures 4 are installed on both sides of the base 5. The supporting structure 4 includes a fixed plate 401, a support foot 402, an anti-skid pad 403, a screw 404 and a rotating block 405. The fixed plate 401 is installed on both sides of the base 5, a screw 404 runs through the middle position of the fixed plate 401, and a rotating block 405 is installed on the top of the screw 404, a support foot 402 is installed at the bottom end of the screw 404, and an anti-skid pad 403 is installed at the bottom end of the support foot 402, and the anti-skid pad 403 is symmetrically distributed about the central axis of the base 5.

[0029] See attached Figure 1-2 and attached Figure 5 As shown, the fixing plate 401 and the screw rod 404 form a threaded connection, and the rotating block 405 can be turned to drive the screw rod 404 to rotate. The rotation of the screw rod 404 can drive the screw rod 404 to rise and fall, and the lifting of the screw rod 404 can drive the support leg 402 to rise and fall. The device can be moved by the rotating wheel 7 at the bottom 5 of the base. When the device needs to be fixed, the height of the support leg 402 can be adjusted to allow the support leg 402 to lift the device so that the rotating wheel 7 no longer touches the ground, and the device can be fixed. The anti-skid pad 403 can enhance the friction of the support leg 402.

[0030] A telescopic rod 3 is installed at the top of the base 5, and a workbench 1 is installed at the top of the telescopic rod 3. A negative pressure structure 2 is installed inside the workbench 1, and the negative pressure structure 2 includes a moving groove 201, a moving block 202, a through hole 203, an air hole 204 and a filter 205. The moving groove 201 is arranged inside the workbench 1, and a moving block 202 is installed inside the moving groove 201. The outer diameter of the moving block 202 is smaller than the inner diameter of the moving groove 201, and the moving block 202 and the moving groove 201 constitute a sliding structure.

[0031] A through hole 203 is disposed at the bottom of the movable groove 201 , an air hole 204 is disposed at the top of the movable groove 201 , and a filter screen 205 is installed inside the air hole 204 .

[0032] See attached Figure 1 and attached Figure 3As shown, the rotating wheel 9 can be grasped and rotated. The rotation of the rotating wheel 9 drives the threaded rod 8 to rotate, which can drive the threaded rod 8 to move. The movement of the threaded rod 8 will drive the limiting plate 11 to move. The movement of the limiting plate 11 can clamp the lithium battery in the middle, clamp and fix the lithium battery, and the anti-slip pattern 12 can enhance the friction of the support leg 402 to make the limit more stable. When the limiting plate 11 moves, it will drive the moving block 202 at the bottom to move. The moving block 202 can be made of rubber material. When the lithium battery is clamped, the lithium battery is placed on the top of the workbench 1 to block the pore 204. Then, when the moving block 202 moves, the gas inside the moving groove 201 will be discharged through the through hole 203. After the gas inside the moving groove 201 is discharged, the air pressure difference inside the moving groove 201 will generate negative pressure, and the lithium battery at the top will be sucked through the pore 204. In this way, the lithium battery can be prevented from deviating before clamping, and the filter 205 can prevent dust from entering the inside of the moving groove 201.

[0033] A mounting plate 10 is installed at the top of the workbench 1, and a threaded rod 8 passes through the middle position of the mounting plate 10. External threads are evenly arranged on the outer wall of the threaded rod 8, and internal threads that cooperate with the external threads are evenly arranged on the inner wall of the mounting plate 10. The threaded rod 8 and the mounting plate 10 are threadedly connected.

[0034] A rotating wheel 9 is installed on one side of the threaded rod 8 , a limiting plate 11 is installed on one side of the threaded rod 8 , and anti-slip grooves 12 are arranged at equal intervals on one side of the limiting plate 11 .

[0035] A lifting mechanism 6 is installed at the middle position of the bottom end of the workbench 1, and the lifting mechanism 6 includes a hydraulic cylinder 601, a telescopic push rod 602 and a push plate 603. The hydraulic cylinder 601 is installed at the middle position of the top end of the base 5, and the telescopic push rod 602 is installed at the top end of the hydraulic cylinder 601, and the push plate 603 is installed at the top end of the telescopic push rod 602.

[0036] See attached Figure 1 and attached Figure 4 As shown, the operation of the hydraulic cylinder 601 can drive the telescopic push rod 602 to extend and retract, and the extension and retraction of the telescopic push rod 602 can drive the push plate 603 to rise and fall, and the lifting and lowering of the push plate 603 can drive the workbench 1 to rise and fall, and adjust the height of the workbench 1 so that the workbench 1 can adapt to different situations. The telescopic rod 3 can be extended and retracted, and the telescopic rod 3 can prevent the workbench 1 from being offset.

[0037] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A clamping tool for lithium battery pack production welding, comprising a base (5); Features: Rotating wheels (7) are installed on both sides of the bottom of the base (5), supporting structures (4) are installed on both sides of the base (5), and a telescopic rod (3) is installed on the top of the base (5); A workbench (1) is installed at the top of the telescopic rod (3); a negative pressure structure (2) is installed inside the workbench (1); the negative pressure structure (2) comprises a moving groove (201), a moving block (202), a through hole (203), an air hole (204) and a filter (205); the moving groove (201) is arranged inside the workbench (1); a moving block (202) is installed inside the moving groove (201); a through hole (203) is arranged at the bottom of the moving groove (201); an air hole (204) is arranged at the top of the moving groove (201); a filter (205) is installed inside the air hole (204); and a mounting plate (10) is installed at the top of the workbench (1); A threaded rod (8) passes through the middle of the mounting plate (10), a rotating wheel (9) is installed on one side of the threaded rod (8), a limiting plate (11) is installed on one side of the threaded rod (8), and a lifting mechanism (6) is installed at the middle of the bottom end of the workbench (1).

2. A clamping tool for lithium battery production welding according to claim 1, characterized in that: The outer diameter of the moving block (202) is smaller than the inner diameter of the moving groove (201), and the moving block (202) and the moving groove (201) form a sliding structure.

3. The clamping tool for lithium battery production welding according to claim 1, characterized in that: The support structure (4) comprises a fixed plate (401), a support foot (402), an anti-skid pad (403), a screw rod (404) and a rotating block (405); the fixed plate (401) is mounted on both sides of the base (5); a screw rod (404) passes through the middle of the fixed plate (401); a rotating block (405) is mounted on the top of the screw rod (404); and a support foot (402) is mounted on the bottom of the screw rod (404).

4. The clamping tool for lithium battery production welding according to claim 3 is characterized in that: An anti-skid pad (403) is installed at the bottom end of the support foot (402), and the anti-skid pad (403) is symmetrically distributed about the central axis of the base (5).

5. The clamping tool for lithium battery production welding according to claim 1, characterized in that: The lifting mechanism (6) comprises a hydraulic cylinder (601), a telescopic push rod (602) and a push plate (603); the hydraulic cylinder (601) is installed at the middle position of the top end of the base (5); the top end of the hydraulic cylinder (601) is installed with a telescopic push rod (602); and the top end of the telescopic push rod (602) is installed with a push plate (603).

6. The clamping tool for lithium battery production welding according to claim 1, characterized in that: External threads are evenly arranged on the outer wall of the threaded rod (8), internal threads matching the external threads are evenly arranged on the inner wall of the mounting plate (10), and the threaded rod (8) and the mounting plate (10) are threadedly connected.

7. The clamping tool for lithium battery production welding according to claim 1, characterized in that: One side of the limiting plate (11) is provided with anti-skid patterns (12), and the anti-skid patterns (12) are arranged at equal intervals on one side of the limiting plate (11).

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