Lithium battery welding clamp

Abstract

The utility model discloses a lithium battery welding fixture, which relates to the technical field of lithium battery welding and comprises a main body, a motor is arranged in the main body, a screw rod is arranged at the output end of the motor, a connecting handle is arranged on the outer side of the screw rod, and a clamping block is movably connected to the top end of the main body. A sliding block matched with the first movable rod is arranged at the bottom end of the clamping block. A worker puts a lithium battery block needing spot welding into the multiple sets of fixing blocks at the top end of the main body, the connecting handle on the outer side of the lead screw vertically moves up and down along the lead screw, the multiple sets of clamping blocks move inwards under the action of the sliding blocks, and the lithium battery block is synchronously clamped; and moreover, the lithium battery is prevented from being damaged due to overlarge clamping force in the clamping process through rubber pads arranged on the inner sides of the clamping blocks.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery welding technology, specifically a lithium battery welding fixture. Background Technology

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as positive and negative electrode materials and a non-aqueous electrolyte solution. In daily life, lithium batteries are gradually replacing traditional batteries. In the production process of lithium batteries, welding technology is required to weld the lithium battery cells to nickel sheets. Generally, the lithium battery is fixed in the middle by front and rear clamps, and then the welding operation is performed.

[0003] A search revealed a Chinese patent with authorization number CN 220330404U, which discloses a lithium battery welding fixture, including a connecting plate. A frame is fixedly connected to the upper surface of the connecting plate. Positioning slots are provided on both the front and back of the frame. A positioning slider is slidably connected to the inner wall of each positioning slot. A push plate is fixedly connected to the side of two positioning sliders that are close to each other. A rolling bearing is fixedly embedded in the right side of the push plate. A threaded cylinder is fixedly embedded in the right side of the frame. A threaded rod is threadedly connected to the inner wall of the threaded cylinder. The left end of the threaded rod is fixedly connected to the inner ring of the rolling bearing. A buffer pad is fixedly connected to the left side of the push plate. A set of springs is fixedly connected to the inner side wall of the frame. The right ends of the set of springs are fixedly connected to the buffer plate.

[0004] The lithium battery welding fixture in the aforementioned patent has the following shortcomings: the lithium battery is clamped by a push plate, but the fixture structure is relatively simple and can easily damage the lithium battery. Furthermore, it cannot clamp the battery simultaneously, which will damage the originally reserved position and affect the accuracy of subsequent welding. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a lithium battery welding fixture to solve the technical problem that the current fixture structure is relatively simple and cannot clamp simultaneously, which will damage the original reserved position and affect the accuracy of subsequent electric welding.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a lithium battery welding fixture, comprising a main body, a motor disposed inside the main body, a lead screw disposed at the output end of the motor, a connecting handle disposed on the outside of the lead screw, a second movable rod fixed on the outside of the connecting handle, a first movable rod movably connected to one end of the second movable rod, a clamping block movably connected to the top of the main body, and a slider cooperating with the first movable rod disposed at the bottom end of the clamping block.

[0007] By adopting the above technical solution, when in use, external personnel place the lithium battery that needs to be spot welded inside the multiple sets of fixing blocks set at the top of the main body. After placement, the personnel start the motor set inside the main body by controlling the control panel set at the bottom of the main body.

[0008] When the motor is started, the lead screw set at the motor output end will rotate at high speed, and the connecting handle set on the outside of the lead screw will move vertically along the lead screw through the high speed rotation of the lead screw.

[0009] When clamping is required, the output end of the control motor rotates in the forward direction, that is, the connecting handle will move downward along the lead screw. At the same time, the first movable rod and the second movable rod connected to the outside of the connecting handle will rotate under the action of the rotating shafts set at their two ends.

[0010] While rotating, the slider inside the main body moves along the groove inside the main body. When the slider moves, the clamping block set at its top also moves, thus achieving multiple sets of clamping blocks to simultaneously support the four corners of the lithium battery.

[0011] Furthermore, the rubber pads inside the clamping block ensure that the outer surface of the lithium battery will not be damaged due to excessive clamping force during the clamping process, thus preventing the loss of raw materials.

[0012] The above results demonstrate that the lithium battery clamping device, using a push plate, provides appropriate clamping force without easily damaging the battery. It also ensures simultaneous clamping without disrupting pre-reserved positions, thus guaranteeing the accuracy of subsequent welding.

[0013] Furthermore, a limit block is provided at the bottom end of the lead screw, and support legs are provided at the four corners of the bottom end of the main body.

[0014] By adopting the above technical solution, the limiting block is used to cooperate with the insertion of an external lithium battery to achieve the positioning effect and ensure the clamping effect of the fixture.

[0015] Furthermore, a control panel is provided at one end of the main body, and the control panel is electrically connected to the motor.

[0016] By adopting the above technical solution, the control panel ensures that external users can easily control the internal motors electrically, making it convenient to use.

[0017] Furthermore, the second movable rod is movably connected to the first movable rod via a pivot, and the first movable rod is movably connected to the slider via a pivot.

[0018] By adopting the above technical solution, the rotating shaft ensures that the second movable rod and the first movable rod can rotate flexibly, preventing jamming.

[0019] Furthermore, a rubber pad is provided inside the clamping block, and multiple sets of fixing blocks are provided at the top of the main body.

[0020] By adopting the above technical solution, the rubber pad ensures that the lithium battery will not be damaged due to excessive force when clamping it.

[0021] Furthermore, the main body has multiple sets of sliding grooves that cooperate with the slider, and the main body has a fixing frame that cooperates with the motor.

[0022] By adopting the above technical solution, the cooperation between the slide groove and the slider ensures that the internal clamping block can be properly engaged and clamped.

[0023] In summary, the present invention has the following beneficial effects: The present invention allows workers to place the lithium battery block to be spot-welded into multiple sets of fixing blocks at the top of the main body. Then, the motor at the bottom of the main body is activated via the control panel. The rotation of the motor output drives the lead screw to rotate, causing the connecting handle on the outside of the lead screw to move vertically up and down along the lead screw. Through the pivot between the first and second movable rods connected to the outside of the connecting handle, multiple clamping blocks move inward under the action of the slider as the connecting handle descends. This simultaneously clamps the lithium battery at its four corners, preventing positional shifts during clamping. Furthermore, the rubber pads on the inner side of the clamping blocks ensure that the lithium battery is not damaged due to excessive clamping force during clamping. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0026] Figure 3 This is a partial structural schematic diagram of the present invention;

[0027] Figure 4 This is a partial structural schematic diagram of the present invention.

[0028] In the diagram: 1. Main body; 2. Support leg; 3. Clamping block; 4. Fixing block; 5. Rubber pad; 6. Control panel; 7. Slide groove; 8. Motor; 9. Lead screw; 10. Connecting handle; 11. First movable rod; 12. Slider; 13. Second movable rod. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0030] The embodiments of this utility model will be described below based on its overall structure.

[0031] A lithium battery welding fixture, such as Figures 1-4 As shown, the device includes a main body 1, inside which is a motor 8. A lead screw 9 is provided at the output end of the motor 8. A connecting handle 10 is provided on the outside of the lead screw 9. A second movable rod 13 is fixed on the outside of the connecting handle 10. One end of the second movable rod 13 is movably connected to a first movable rod 11. In use, the lithium battery to be spot-welded is placed inside the multiple sets of fixing blocks 4 provided at the top of the main body 1 by an external worker. After placement, the worker starts the motor 8 inside the main body 1 by controlling the control panel 6 provided at the bottom of the main body 1.

[0032] For example, a clamping block 3 is movably connected to the top of the main body 1, and a slider 12 that cooperates with the first movable rod 11 is provided at the bottom of the clamping block 3. A limit block is provided at the bottom of the lead screw 9, and support legs 2 are provided at the four corners of the bottom of the main body 1. When the motor 8 is started, the lead screw 9 provided at the output end of the motor 8 will rotate at high speed, and the connecting handle 10 provided on the outside of the lead screw 9 will move vertically along the lead screw 9 by means of the high speed rotation of the lead screw 9.

[0033] For example, a control panel 6 is provided at one end of the main body 1. The control panel 6 is electrically connected to the motor 8. The second movable rod 13 is movably connected to the first movable rod 11 through a rotating shaft. When clamping is required, the output end of the control motor 8 rotates in the forward direction, that is, the connecting handle 10 moves downward along the lead screw 9. At the same time, the first movable rod 11 and the second movable rod 13, which are movably connected to the outside of the connecting handle 10, will rotate under the action of the rotating shafts provided at their two ends.

[0034] For example, the first movable rod 11 and the slider 12 are movably connected by a rotating shaft. The main body 1 has multiple sets of sliding grooves 7 that cooperate with the slider 12. The main body 1 is equipped with a fixed frame that cooperates with the motor 8. When rotating, the slider 12 inside the main body 1 will move along the sliding grooves 7 inside the main body. When the slider 12 moves, the clamping block 3 set at its top will also move, thereby achieving multiple sets of clamping blocks 3, which simultaneously support the four corners of the lithium battery.

[0035] The working principle of this utility model is as follows: When in use, the lithium battery that needs to be spot welded is placed inside the multiple sets of fixing blocks 4 set at the top of the main body 1 by an external worker. After the placement is completed, the worker starts the motor 8 set inside the main body 1 by controlling the control panel 6 set at the bottom of the main body 1.

[0036] When the motor 8 is started, the lead screw 9 set at the output end of the motor 8 will rotate, and the connecting handle 10 set on the outside of the lead screw 9 will move vertically along the lead screw 9 by the high-speed rotation of the lead screw 9.

[0037] When clamping is required, the output end of the control motor 8 rotates in the forward direction, that is, the connecting handle 10 moves downward along the lead screw 9. At the same time, the first movable rod 11 and the second movable rod 13, which are movably connected to the outside of the connecting handle 10, will rotate under the action of the rotating shafts set at their two ends.

[0038] While rotating, the slider 12 inside the main body 1 will move along the slide groove 7 inside the main body. When the slider 12 moves, the clamping block 3 set at its top will also move, thereby achieving multiple sets of clamping blocks 3 to simultaneously support the four corners of the lithium battery.

[0039] Furthermore, the rubber pad 5 inside the clamping block 3 ensures that the outer surface of the lithium battery will not be damaged due to excessive clamping force during the clamping process, thereby causing loss of raw materials.

[0040] The above results demonstrate that the lithium battery clamping device, using a push plate, provides appropriate clamping force without easily damaging the battery. It also ensures simultaneous clamping without disrupting pre-reserved positions, thus guaranteeing the accuracy of subsequent welding.

[0041] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A lithium battery welding jig comprising a main body (1), characterized in that: The body (1) is internally provided with a motor (8), the output end of the motor (8) is provided with a lead screw (9), the outer side of the lead screw (9) is provided with a connecting handle (10), the outer side of the connecting handle (10) is fixedly provided with a second movable rod (13), one end of the second movable rod (13) is movably connected with a first movable rod (11), the top end of the body (1) is movably connected with a clamping block (3), the bottom end of the clamping block (3) is provided with a sliding block (12) matched with the first movable rod (11).

2. A lithium battery welding fixture as defined in claim 1, wherein: The bottom end of the lead screw (9) is provided with a limiting block, and the bottom end of the body (1) is provided with supporting legs (2) at four corners.

3. The lithium battery welding fixture of claim 1, wherein: One end of the body (1) is provided with a control panel (6), and the control panel (6) is electrically connected with the motor (8).

4. The lithium battery welding fixture of claim 1, wherein: The second movable rod (13) and the first movable rod (11) are movably connected through a rotating shaft, and the first movable rod (11) and the sliding block (12) are movably connected through a rotating shaft.

5. The lithium battery welding fixture of claim 1, wherein: The clamping block (3) is internally provided with a rubber pad (5), and the top end of the body (1) is provided with a plurality of fixed blocks (4).

6. The lithium battery welding fixture of claim 1, wherein: A plurality of sliding grooves (7) matched with the sliding block (12) are formed in the body (1), and the body (1) is provided with a fixed frame matched with the motor (8).

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