Laser welding machine for new energy automobile power battery processing

Abstract

The utility model relates to laser welding machine structure technical field discloses a new energy automobile power battery processing is with laser welding machine, including control main part, the outside of control main part is provided with unfolding mechanism, the outside fixedly connected with workstation surface of unfolding mechanism, the outside of workstation surface is provided with fixed establishment, the fixed establishment includes a plurality of fixed plate no.

Description

Technical Field

[0001] This utility model relates to the field of laser welding machine structure technology, and in particular to a laser welding machine for processing power batteries for new energy vehicles. Background Technology

[0002] In the production of power batteries for new energy vehicles, laser welding machines mainly use high-energy-density laser beams to weld key components such as the tabs, casing, and cover plates of the power battery. This enables high-precision, low-heat-affected connections, ensuring the structural stability and electrical performance of the power battery, and adapting to the mass production needs of power batteries of different specifications.

[0003] In existing laser welding machines, the power battery components to be welded are typically first transported to a preset station by a feeding mechanism, and the workpiece position is initially fixed by a positioning component. Then, a laser generator produces a laser of a specific wavelength, and the optical system adjusts the path and focus of the laser beam so that the focused laser beam can accurately act on the welding area.

[0004] In existing technologies, some laser welding machines, when welding batteries, suffer from unstable fixation, which leads to misalignment between the laser focus and the preset welding position, resulting in weld deviation and potential safety hazards such as battery leakage and bulging. To address this issue, a laser welding machine for processing power batteries for new energy vehicles is proposed. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a laser welding machine for processing power batteries for new energy vehicles, aiming to improve the problem of misalignment that occurs when welding power batteries for new energy vehicles in some existing laser welding machines.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A laser welding machine for processing power batteries for new energy vehicles includes a control body. A guide rail is fixedly connected to the top of the control body. A support block is slidably connected to the outside of the guide rail. A telescopic rod is fixedly connected to the top of the support block. An extension plate is fixedly connected to the driving end of the telescopic rod. A welding head is fixedly connected to the outside of the extension plate. An unfolding mechanism is provided outside the control body. A worktable is fixedly connected to the outside of the unfolding mechanism. A fixing mechanism is provided outside the worktable. The fixing mechanism includes multiple fixing plates II. The bottom of the fixing plates II is fixedly connected to the outside of the worktable. Threaded rods are rotatably connected inside two of the fixing plates II. A manual rotary wheel is fixedly connected to one end of the threaded rod. Two fixing plates I are threadedly connected to the outside of the threaded rod. A sliding column is slidably connected to the outside of the worktable. A pressing component is provided inside the sliding column.

[0008] As a further description of the above technical solution:

[0009] The unfolding mechanism includes two fixed rods. The fixed rods are fixedly connected to the outside of the control body. The inside of the fixed rods is fixedly connected to two fixed shafts. The other fixed rod is rotatably connected to the outside of one of the fixed shafts.

[0010] As a further description of the above technical solution:

[0011] The inner side of the first fixed plate is slidably connected to a limiting shaft, and the two outer ends of the limiting shaft are fixedly connected to the inner sides of the other two second fixed plates. The top of the control body is fixedly connected to a limiting post, and the outer side of the limiting post is slidably connected to the outside of the sliding post.

[0012] As a further description of the above technical solution:

[0013] The pressing assembly includes a rotating rod, which is rotatably connected to the inside of the sliding column, and a bevel gear is fixedly connected to the outside of the rotating rod.

[0014] As a further description of the above technical solution:

[0015] A transmission block is fixedly connected inside the limiting post, a lead screw is threaded inside the transmission block, and a bevel gear is fixedly connected to the top of the lead screw.

[0016] As a further description of the above technical solution:

[0017] The outer surfaces of the second bevel gear and the first bevel gear are meshed with each other, and a downward fixing strip is fixedly connected to the outer surface of the sliding column.

[0018] As a further description of the above technical solution:

[0019] Another fixed shaft is rotatably connected to both sides by a transmission link, and the other fixed link has a sliding groove on its outside. A locking cam is rotatably connected to the outside of the transmission link.

[0020] As a further description of the above technical solution:

[0021] The locking cam is externally slidably connected to the outside of the fixed rod, and the transmission link is externally slidably connected to the inside of the slide groove.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the manual rotating wheel drives the threaded rod to rotate, causing the two fixing plates sleeved on the limiting shaft to slide and clamp the battery in opposite directions; then, rotating the rotating rod, through the meshing transmission of bevel gear one and bevel gear two, drives the screw to rise and fall, causing the lower fixing strip of the sliding column to press the electrode sheet, realizing the multi-directional fixing function of the battery and the electrode sheet. The linkage design can simultaneously complete the horizontal and vertical fixing, greatly reducing the risk of welding displacement and ensuring the consistency of electrode sheet welding.

[0024] 2. In this utility model, by pushing the worktable surface to drive the movable fixed rod to rotate around the fixed shaft, the transmission connecting rod is simultaneously driven to slide along the slide groove of the fixed rod. After the table surface is level, the locking cam is rotated to fit tightly against the fixed rod. The cam's self-locking characteristic locks the fixed rod, realizing the unfolding and fixing functions of the worktable surface, providing stable support for subsequent workpiece placement. At the same time, the cam's self-locking ensures that the table surface is not loose, improving the ease of use and operational stability of the equipment. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a laser welding machine for processing power batteries for new energy vehicles proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the limiting shaft of a laser welding machine for processing power batteries for new energy vehicles proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the bevel gear of a laser welding machine for processing power batteries of new energy vehicles proposed in this utility model.

[0028] Figure 4 This is a schematic diagram of the locking cam of a laser welding machine for processing power batteries of new energy vehicles, as proposed in this utility model.

[0029] Legend:

[0030] 1. Control body; 2. Guide rail; 3. Fixing mechanism; 31. Manual rotary wheel; 32. Fixing plate one; 33. Threaded rod; 34. Fixing plate two; 35. Limiting shaft; 36. Sliding column; 37. Limiting column; 38. Pressing assembly; 381. Rotating rod; 382. Bevel gear one; 383. Bevel gear two; 384. Transmission block; 385. Lead screw; 386. Pressing fixing bar; 4. Telescopic rod; 5. Worktable; 6. Unfolding mechanism; 61. Fixing rod; 62. Transmission connecting rod; 63. Slide groove; 64. Locking cam; 7. Welding head. Detailed Implementation

[0031] 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.

[0032] Example:

[0033] A laser welding machine for processing power batteries for new energy vehicles, with reference to Figures 1 to 3 The system includes a control body 1, with a guide rail 2 fixedly connected to its top. A support block is slidably connected to the outside of the guide rail 2. The guide rail 2 provides a stable sliding path for the support block, ensuring that the support block drives the subsequent structure to move in a preset direction. A telescopic rod 4 is fixedly connected to the top of the support block. The telescopic rod 4 is an electrically driven telescopic structure that can adjust the vertical height of the welding head 7 by changing its length. The support block supports the telescopic rod 4 and the welding head 7 and can slide along the guide rail 2 to adjust the lateral position of the welding head 7. An extension plate is fixedly connected to the drive end of the telescopic rod 4, and the welding head 7 is fixedly connected to the outside of the extension plate. The welding head 7 is used to emit a laser beam to weld the power battery electrode sheets. The extension plate is used to connect the telescopic rod 4 and the welding head 7, so that the welding head 7 can move synchronously with the telescopic rod 4. The connection angle and position can be adjusted according to the installation requirements of the welding head 7. The control body 1 is equipped with an unfolding mechanism 6, which is used to unfold and store the worktable 5, making it convenient to pick up and put down the workpiece and save space when the equipment is idle. The worktable 5 is fixedly connected to the unfolding mechanism 6. The worktable 5 is used to place the power battery and electrode to be welded, providing a stable welding operation platform. The worktable 5 is equipped with a fixing mechanism 3, which is used to fix the power battery and electrode on the worktable 5 in multiple directions to prevent the workpiece from shifting during welding.

[0034] Specifically, when using this laser welding machine, the worktable 5 is first unfolded and locked by the unfolding mechanism 6. The power battery to be welded and the electrode are placed on the worktable 5. The fixing mechanism 3 is operated, and the manual rotating wheel 31 is rotated to drive the threaded rod 33 to rotate, so that the fixing plate 32 slides along the limiting shaft 35 to clamp the battery. Then, the sliding column 36 is pushed to the top of the electrode. The rotating rod 381 is rotated to drive the lead screw 385 to descend through the bevel gear transmission, so that the pressing fixing bar 386 presses the electrode. Then, the parameters are set by the control body 1, the support block is driven to slide along the guide rail 2, the telescopic rod 4 is extended and retracted, the welding head 7 is adjusted to a suitable position, and the welding head 7 is started to emit laser to complete the electrode welding.

[0035] The fixing mechanism 3 includes multiple fixing plates 34. The bottom of the fixing plates 34 is fixedly connected to the outside of the worktable 5. Two fixing plates 34 are rotatably connected to threaded rods 33. A manual rotating wheel 31 is fixedly connected to one end of each threaded rod 33 to provide rotational power. Two fixing plates 32 are threadedly connected to the outside of the threaded rods 33. The fixing plates 32 can clamp the battery from both sides laterally by sliding towards each other, achieving lateral fixation of the battery and preventing lateral displacement during welding. A limiting shaft 35 is slidably connected inside the fixing plates 32 to limit the direction of movement of the fixing plates 32, ensuring that the fixing plates 32 slide linearly along the axial direction and preventing synchronous rotation of the fixing plates 32 due to the rotation of the threaded rods 33, thus ensuring fixing accuracy. The rotation of the threaded rods 33 can drive the externally threaded fixing plates 32 to rotate. The sliding in opposite directions is the core transmission structure for achieving horizontal fixation of the battery. A sliding column 36 is slidably connected to the outside of the worktable 5. The sliding column 36 can slide and adjust its position along the worktable 5 to provide an installation carrier for the pressing fixing strip 386. A pressing component 38 is provided inside the sliding column 36. The pressing component 38 is used to provide vertical pressure to fix the connecting electrode. The two ends of the limiting shaft 35 are fixedly connected to the inside of two other fixing plates 34. The fixing plates 34 are used to provide fixed support for the threaded rod 33 and the limiting shaft 35 to ensure that they remain stable during operation and avoid positional displacement due to vibration. A limiting column 37 is fixedly connected to the top of the control body 1. The limiting column 37 is used to limit the sliding direction of the sliding column 36 to ensure that the sliding column 36 slides stably only in the longitudinal direction. The external of the limiting column 37 is slidably connected to the outside of the sliding column 36.

[0036] Specifically, when using the fixing mechanism 3, the power battery is first placed on the workbench 5. The manual rotary wheel 31 is rotated to drive the threaded rod 33 to rotate within the fixing plate 2 34. Since the fixing plate 1 32 is threadedly connected to the threaded rod 33 and is fitted onto the limiting shaft 35, the rotation of the threaded rod 33 causes the two fixing plates 1 32 to slide towards each other along the limiting shaft 35, clamping the battery laterally. Then, the sliding column 36 is pushed to slide along the workbench 5 and the limiting column 37 to the top of the electrode. Vertical pressure is provided by the pressing component 38 inside the sliding column 36 to complete the electrode fixing and ensure that the workpiece does not shift during welding.

[0037] The pressing assembly 38 includes a rotating rod 381, which is externally rotatably connected to the inside of the sliding column 36. A bevel gear 382 is fixedly connected to the outside of the rotating rod 381. The rotating rod 381 allows for manual rotation by the operator, providing rotational power to the bevel gear 382. It serves as the power input structure for the pressing action. The bevel gear 382 converts the horizontal rotation of the rotating rod 381 into the vertical rotation of the bevel gear 383, thus changing the direction of power. A transmission block 384 is fixedly connected inside the limiting column 37, and a lead screw 385 is threadedly connected inside the transmission block 384. The top of the lead screw 385... A second bevel gear 383 is fixedly connected. A transmission block 384 is used to engage with a lead screw 385 to convert the rotation of the second bevel gear 383 into the vertical lifting motion of the lead screw 385. The outer parts of the second bevel gear 383 and the outer parts of the first bevel gear 382 are meshed with each other. The second bevel gear 383 meshes with the first bevel gear 382, ​​receives the power transmitted by the first bevel gear 382, ​​and drives the lead screw 385 to rotate. A downward fixing strip 386 is fixedly connected to the outer part of the sliding column 36. The downward fixing strip 386 directly contacts the electrode and presses the electrode onto the battery with vertical pressure to prevent vertical displacement during electrode welding.

[0038] Specifically, when operating the pressing component 38, the operator rotates the rotating rod 381 inside the sliding column 36. The rotating rod 381 drives the external bevel gear 382 to rotate. The bevel gear 382 meshes and drives the bevel gear 383 to rotate. The bevel gear 383 then drives the bottom lead screw 385 to rotate. Because the lead screw 385 is threadedly engaged with the transmission block 384 inside the limiting column 37, the rotation of the lead screw 385 is converted into a vertical downward motion, which drives the sliding column 36 to descend synchronously. Finally, the pressing fixing strip 386 outside the sliding column 36 presses the electrode sheet tightly, preventing vertical displacement of the electrode sheet during welding.

[0039] Reference Figure 1 , Figure 2 and Figure 4The unfolding mechanism 6 includes two fixed rods 61. The fixed rods 61 are externally fixedly connected to the outside of the control body 1. Two fixed shafts are fixedly connected to the inner side of each fixed rod 61. One fixed shaft is rotatably connected to the other fixed rod 61. Transmission connecting rods 62 are rotatably connected to both sides of the other fixed shaft. A sliding groove 63 is provided on the outside of the other fixed rod 61. The fixed rods 61 are used to drive the worktable 5 to unfold or retract, and are the core support structure for the movement of the worktable 5. A locking cam 64 is rotatably connected to the outside of the transmission connecting rod 62. The locking cam 64 is slidably connected to the outside of the fixed rod 61. The moving link 62 is used to connect two fixed links 61, limiting the rotation angle of the movable fixed link 61, and at the same time driving the locking cam 64 to move, assisting in locking the fixed link 61. The locking cam 64 can be tightly pressed against the outside of the fixed link 61 by rotation, and the movable fixed link 61 is locked in a preset position by using the self-locking characteristic of the cam, preventing the worktable 5 from shaking during welding. The external sliding connection of the transmission link 62 is slidably connected to the inside of the slide groove 63. One fixed shaft is used to connect the two fixed links 61, so that the movable fixed link 61 can rotate around it, and the other is used to connect the transmission link 62, providing a rotation fulcrum for the transmission link 62.

[0040] Specifically, when operating the unfolding mechanism 6, the worktable 5 connected to the movable fixed rod 61 is pushed, causing the fixed rod 61 to rotate around one of the fixed axes. The other fixed axis drives the transmission connecting rod 62 to slide along the slide groove 63. When the worktable 5 unfolds to the preset position, the locking cam 64 on the transmission connecting rod 62 is rotated to make it fit tightly against the outside of the fixed rod 61. The self-locking characteristic is used to lock the fixed rod 61, thus completing the unfolding and fixing of the worktable 5. The operation is reversed when storing.

[0041] The implementation principle of this application embodiment is as follows: The operator first operates the unfolding mechanism 6: push the worktable 5, which drives the movable fixed rod 61 to rotate around the fixed shaft. At this time, the transmission connecting rod 62 slides synchronously along the slide groove 63 outside the fixed rod 61. When the worktable 5 is unfolded to a horizontal state, rotate the locking cam 64 to make it fit tightly against the outside of the fixed rod 61. With the help of the self-locking characteristic of the cam structure, lock the position of the movable fixed rod 61, and complete the unfolding and fixing of the worktable 5.

[0042] After the operator places the power battery to be welded in the designated area of ​​the workbench 5, they rotate the manual rotary wheel 31, causing the threaded rod 33, which is fixedly connected to it, to rotate inside the two fixed plates 34. Since the threaded rod 33 is externally threaded to the two fixed plates 32, and the fixed plates 32 are fitted onto the outside of the limiting shaft 35 for sliding limitation, as the threaded rod 33 rotates, the two fixed plates 32 slide towards each other along the axial direction of the limiting shaft 35 until their inner sides are tightly against the lateral sides of the battery, thus completing the battery fixation. Then, the connecting electrode plates are aligned with the corresponding positions. Placed above the battery, the rotating rod 381 is rotated, which drives the externally fixed bevel gear 382 to rotate. Since the bevel gear 382 meshes with the bevel gear 383 at the top of the lead screw 385, and the lead screw 385 is threadedly connected to the transmission block 384, the rotation of the bevel gear 383 will drive the lead screw 385 to rise and fall along the axis of the transmission block 384, thereby driving the sliding column 36 to fall as a whole until the pressing and fixing strip 386 on the outside of the sliding column 36 is tightly pressed against the top of the electrode, thus completing the vertical pressing of the electrode and avoiding deviation caused by workpiece displacement during welding.

[0043] The operator sets welding parameters and plans the movement trajectory of the welding head 7 through the operation interface of the control body 1. After starting the welding program, the control body 1 drives the support block outside the guide rail 2 to move along the length of the guide rail 2. At the same time, the telescopic rod 4 on the top of the support block is extended and retracted according to the welding height requirements to ensure that the welding head 7 maintains a preset vertical distance from the electrode to be welded. Finally, the welding operation is completed through the welding head 7.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A laser welding machine for processing power batteries for new energy vehicles, comprising a control body (1), characterized in that: The top of the control body (1) is fixedly connected to a guide rail (2), the outside of the guide rail (2) is slidably connected to a support block, the top of the support block is fixedly connected to a telescopic rod (4), the driving end of the telescopic rod (4) is fixedly connected to an extension plate, the outside of the extension plate is fixedly connected to a welding head (7), the outside of the control body (1) is provided with an unfolding mechanism (6), the outside of the unfolding mechanism (6) is fixedly connected to a worktable (5), and the outside of the worktable (5) is provided with a fixing mechanism (3). The fixing mechanism (3) includes multiple fixing plates (34), the bottom of which is fixedly connected to the outside of the workbench (5). Two of the fixing plates (34) are rotatably connected to threaded rods (33), one end of which is fixedly connected to a manual turn wheel (31). Two fixing plates (32) are threadedly connected to the outside of the threaded rods (33). A sliding column (36) is slidably connected to the outside of the workbench (5), and a pressing component (38) is provided inside the sliding column (36).

2. The laser welding machine for processing power batteries for new energy vehicles according to claim 1, characterized in that: The unfolding mechanism (6) includes two fixed rods (61). The fixed rods (61) are fixedly connected to the outside of the control body (1). The inside of the fixed rods (61) is fixedly connected to two fixed shafts. The other fixed rod (61) is rotatably connected to the outside of one of the fixed shafts.

3. The laser welding machine for processing power batteries for new energy vehicles according to claim 1, characterized in that: The inner side of the first fixed plate (32) is slidably connected to a limiting shaft (35), and the outer ends of the limiting shaft (35) are fixedly connected to the inner side of the other two second fixed plates (34). The top of the control body (1) is fixedly connected to a limiting post (37), and the outer side of the limiting post (37) is slidably connected to the outside of the sliding post (36).

4. The laser welding machine for processing power batteries for new energy vehicles according to claim 3, characterized in that: The pressing assembly (38) includes a rotating rod (381), which is rotatably connected to the inside of the sliding column (36) and is fixedly connected to the outside of the rotating rod (381).

5. A laser welding machine for processing power batteries for new energy vehicles according to claim 4, characterized in that: The limiting post (37) is internally fixedly connected to a transmission block (384), the transmission block (384) is internally threadedly connected to a lead screw (385), and the top of the lead screw (385) is fixedly connected to a bevel gear (383).

6. A laser welding machine for processing power batteries for new energy vehicles according to claim 5, characterized in that: The outer surfaces of the second bevel gear (383) and the first bevel gear (382) are meshed with each other, and the outer surface of the sliding column (36) is fixedly connected with a pressing fixing strip (386).

7. A laser welding machine for processing power batteries for new energy vehicles according to claim 2, characterized in that: A transmission link (62) is rotatably connected to both sides of another fixed shaft, and a groove (63) is provided on the outside of another fixed rod (61). A locking cam (64) is rotatably connected to the outside of the transmission link (62).

8. A laser welding machine for processing power batteries for new energy vehicles according to claim 7, characterized in that: The locking cam (64) is externally slidably connected to the outside of the fixed rod (61), and the transmission link (62) is externally slidably connected to the inside of the slide groove (63).

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