A welding guide positioning device for battery pack production

Abstract

The present application relates to the field of battery pack welding, in particular to a kind of welding orientation positioning device for battery pack production, including mounting frame, one end of the mounting frame is installed on welding machine, the other end of the mounting frame is equipped with telescopic laser welding head, the outer lateral wall of the mounting frame is threadedly connected with sliding table, one side of the sliding table is equipped with modular multi-motor controller, the other side of the sliding table is equipped with base, the outer lateral wall of the sliding table is installed with multiple data rods, multiple data rods are all threadedly connected with limiting assembly, one end of the data rod is equipped with servo motor that can drive limiting assembly to move;The present application is clamped battery pack by limiting assembly, can adjust limiting assembly position as needed under the cooperation of modular multi-motor controller and intelligent system, cooperate with sliding table to adjust battery pack positioning, with laser welding head accurate adaptation, to solve the problem that traditional device cannot adjust in time, improve positioning accuracy, guarantee battery pack welding efficient, accurate.

Description

Technical Field

[0001] This invention relates to the field of battery pack welding, and more specifically to a welding guide and positioning device for battery pack production. Background Technology

[0002] The battery welding positioning dust removal device and battery welding machine with application number CN202010969785.9 relate to the field of lithium battery manufacturing. The battery welding positioning dust removal device includes a first dust removal module, a second dust removal module, and a module driving component. The first dust removal module includes a first driving component and a first positioning dust removal component, with the first driving component connected to the first positioning dust removal component. The second dust removal module includes several second positioning dust removal components and a driving device. The second positioning dust removal components and the first positioning dust removal components can mutually enclose each other to form a receiving cavity. The driving device and the first driving component are used to drive the first and second positioning dust removal components to move closer to or away from the center of the receiving cavity. The module driving component drives the first and second dust removal modules to move closer to or away from each other. This invention's battery welding positioning dust removal device and battery welding machine can accurately position the battery before welding, blow protective gas onto the battery during welding, and remove dust, ensuring welding quality.

[0003] In the prior art including the aforementioned patents, when using laser welding equipment in battery pack production, it is required that the position of the laser irradiation on the workpiece be very precise and without deviation. This is because the laser beam after focusing is very small, the weld is narrow, and if the position is incorrect, the welding effect will be greatly reduced.

[0004] Existing positioning devices all perform centering positioning, but the positioning position and the laser head of the laser welding equipment cannot be quickly and timely adjusted and changed. When processing and welding different types of battery packs, the laser welding position needs to be changed, but the positioning position of the positioning device cannot be changed accordingly, resulting in poor positioning accuracy.

[0005] Therefore, it is necessary to invent a welding guide and positioning device for battery pack production to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a welding guide and positioning device for battery pack production. This device clamps the battery pack using a limiting component. With the collaboration of a modular multi-motor controller and an intelligent system, the position of the limiting component can be adjusted as needed. This, combined with a sliding table, adjusts the battery pack positioning and ensures precise adaptation to the laser welding head. This addresses the problem that existing positioning devices perform centering positioning, but the positioning position cannot be quickly and timely adjusted or changed relative to the laser head of the laser welding equipment. Furthermore, when processing and welding different types of battery packs, the laser welding position needs to be changed, but the positioning device's position cannot be changed accordingly, resulting in poor positioning accuracy.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a welding guide and positioning device for battery pack production, comprising a mounting frame, one end of which is mounted on a welding machine, and the other end of which is provided with a retractable laser welding head. A slide is threadedly connected to the outer side wall of the mounting frame. A modular multi-motor controller is provided on one side of the slide, and a base is provided on the other side of the slide. Multiple data rods are mounted on the outer side wall of the slide, and each of the multiple data rods is threadedly connected to a limit component. One end of each data rod is provided with a servo motor capable of driving the limit component to move. The multiple servo motors are electrically connected to the modular multi-motor controller via wires. The limit component includes a protective cover threadedly connected to the data rod, and a positioning block is retractably connected to one side of the protective cover. A positioning plate is provided on the positioning block.

[0008] As a preferred embodiment of the present invention, the protective cover is symmetrically provided with two limiting slide plates and a screw hole plate. The limiting slide plates are provided with positioning pointers. The two limiting slide plates are slidably connected to the bottom of the data rod. The screw hole plate is threadedly connected to the bottom of the data rod. Both sides of the protective cover are provided with micro motors. The power output shafts of the two micro motors are provided with gears. One side of the positioning block is provided with a tooth groove, which meshes with the gear. The other side of the positioning block is provided with an anti-slip groove.

[0009] As a preferred embodiment of the present invention, the positioning plate is connected to the side wall of the positioning block, and a strip groove is provided on one side of the positioning plate. A plurality of rollers arranged in an array are rotatably provided in the inner cavity of the strip groove.

[0010] As a preferred embodiment of the present invention, the side wall of the data rod is provided with a scale that cooperates with the positioning pointer, and the bottom of the data rod is provided with multiple grooves. Each of the multiple grooves is provided with a slide rod that cooperates with the limiting slide plate and a threaded rod that cooperates with the screw hole plate. One end of the threaded rod is connected to the power output shaft of the servo motor.

[0011] As a preferred embodiment of the present invention, the slide table has a rectangular opening at its center, and the inner sidewall of the rectangular opening is provided with a plurality of fixing blocks that respectively cooperate with the screw and the limiting rod.

[0012] As a preferred embodiment of the present invention, the modular multi-motor controller is electrically connected to the laser welding intelligent control system via wires.

[0013] As a preferred embodiment of the present invention, two sets of screws are symmetrically rotatably connected to one side wall of the mounting bracket, and two sets of limiting rods are symmetrically provided on the other side wall of the mounting bracket, each set having two screws and a limiting rod. One end of the two sets of screws is rotatably connected to the base, and the two sets of limiting rods are fixedly connected to the base.

[0014] As a preferred embodiment of the present invention, the base has a square opening at its center that mates with the laser welding head, and a positioning element for snapping and positioning the cooling tube is provided on one side of the base. The positioning element has a circular opening, a rubber ring is provided inside the circular opening, and multiple adjusting screws are provided on the outer side wall of the positioning element.

[0015] Compared with the prior art, the technical effects and advantages provided by the present invention in the above technical solution are as follows:

[0016] 1. This welding guide and positioning device for battery pack production uses limiting components to clamp and position the battery pack. In conjunction with a modular multi-motor controller and a laser welding intelligent control system, it can adjust the position of the limiting components and the adjustment of the slide table and limiting components according to the welding requirements of different battery packs, so as to adjust the positioning of the battery pack and make it accurately match the laser welding head. This overcomes the shortcomings of existing positioning devices that cannot be adjusted in time with the welding position, improves positioning accuracy, and ensures that the welding work of various battery packs is carried out efficiently and accurately.

[0017] 2. In this welding guide and positioning device for battery pack production, when welding different types of battery packs, the lifting and lowering of the data rod can drive multiple limit components to rise and fall synchronously. When lowering, the limit components can be precisely adjusted to the appropriate position to achieve precise clamping and positioning of the battery pack, ensuring accurate adaptation with the position of the laser welding head. When rising, it can prevent the limit components from contacting the battery pack when the laser welding head moves in a horizontal position, ensuring the accuracy of movement adjustment, overcoming the shortcomings of existing positioning devices in the adjustment process, improving the accuracy of battery pack welding positioning, and ensuring efficient welding work for various types of battery packs.

[0018] 3. In this welding guide positioning device for battery pack production, when faced with battery packs of different sizes and shapes, the limiting components can achieve positioning and clamping through flexible self-adjustment. The internal micro motor drives the positioning block to rise and fall, and together with the rollers on the positioning plate, they roll in contact with the surface of the battery pack. This not only adapts to a variety of battery packs but also improves clamping flexibility. Under the control of the modular multi-motor controller, the synchronous movement of the two limiting components can drive the mounting frame to adjust its position, helping the laser welding head to accurately position the welding point. This comprehensively ensures the high precision of battery pack welding positioning and the high efficiency of welding work, solving the shortcomings of traditional positioning devices in terms of adapting to the diversity of battery packs and adjustment. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the present invention. Figure 2 ;

[0022] Figure 3 This is a schematic diagram of the fixing block structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the positioning component structure of the present invention;

[0024] Figure 5 This is a schematic diagram showing the connection relationship between the data rod, the limiting component, and the servo motor of the present invention.

[0025] Figure 6 This is a schematic diagram showing the connection structure between the limiting slide plate, the screw hole plate, and the data rod of the present invention;

[0026] Figure 7 This is a schematic cross-sectional view of the data pole structure of the present invention;

[0027] Figure 8 This is a schematic diagram of the limiting component structure of the present invention;

[0028] Figure 9 This is a schematic diagram of the positioning plate structure of the present invention;

[0029] Figure 10 This is a schematic diagram of the positioning pointer structure of the present invention;

[0030] Figure 11 This is a cross-sectional view of the protective cover of the present invention.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Mounting bracket; 11. Screw; 12. Limiting rod; 2. Laser welding head; 3. Slide table; 30. Modular multi-motor controller; 31. Base; 32. Positioning component; 4. Data rod; 5. Limiting assembly; 51. Protective cover; 511. Limiting slide plate; 512. Screw hole plate; 513. Positioning pointer; 514. Micro motor; 52. Positioning block; 53. Positioning plate; 6. Servo motor. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0034] This invention provides, for example Figures 1-11The diagram shows a welding guide and positioning device for battery pack production, comprising a mounting frame 1. One end of the mounting frame 1 is mounted on a welding machine, and the other end of the mounting frame 1 is provided with a retractable laser welding head 2. A slide table 3 is threadedly connected to the outer wall of the mounting frame 1. A modular multi-motor controller 30 is provided on one side of the slide table 3, and a base 31 is provided on the other side of the slide table 3. Multiple data rods 4 are mounted on the outer wall of the slide table 3, and each of the multiple data rods 4 is threadedly connected to a limit component 5. One end of each data rod 4 is provided with a servo motor 6 that can drive the limit component 5 to move. The multiple servo motors 6 are electrically connected to the modular multi-motor controller 30 through wires. The limit component 5 includes a protective cover 51 threadedly connected to the data rod 4, and a positioning block 52 is retractably connected to one side of the protective cover 51. A positioning plate 53 is provided on the positioning block 52. With this structural arrangement, multi-directional adjustment and positioning during the battery pack welding process can be achieved. Mounting bracket 1 connects the device to the welding machine, providing a mounting base; the retractable laser welding head 2 allows for convenient and flexible adjustment of the welding position; the slide table 3 is threadedly connected to mounting bracket 1, and together with the data rod 4, limit component 5 and servo motor 6, it can achieve precise positioning and clamping of the battery pack, providing a stable foundation for subsequent welding work.

[0035] Furthermore, the protective cover 51 is symmetrically equipped with two limiting slide plates 511 and a screw hole plate 512. The limiting slide plates 511 are equipped with positioning pointers 513. The two limiting slide plates 511 are slidably connected to the bottom of the data rod 4, and the screw hole plate 512 is threadedly connected to the bottom of the data rod 4. Micro motors 514 are provided on both sides of the protective cover 51, and gears are provided on the power output shafts of both micro motors 514. One side of the positioning block 52 has a toothed groove that meshes with the gear, and the other side of the positioning block 52 has an anti-slip groove. The setting of the limiting slide plates 511 and the screw hole plate 512 makes the position adjustment of the protective cover 51 on the data rod 4 more precise and flexible. The positioning pointer 513 cooperates with the scale on the data rod 4, allowing the operator to intuitively understand the adjustment position. The micro motors 514, through gear meshing with the toothed groove of the positioning block 52, can precisely control the extension and retraction of the positioning block 52 to adapt to battery packs of different sizes and shapes. The anti-slip groove enhances the stability of the positioning block 52 when holding the battery pack.

[0036] Furthermore, the positioning plate 53 is connected to the side wall of the positioning block 52. One side of the positioning plate 53 is provided with a strip groove, and multiple rollers arranged in an array are rotatably arranged inside the strip groove. The roller design on the positioning plate 53 allows the rollers to adhere to and roll against the surface of the battery pack when clamping it. Compared with simply clamping it with the anti-slip surface on one side of the positioning block 52, it has higher flexibility, is easier to adjust, and can better adapt to the position fine adjustment needs of the battery pack during the positioning process, while reducing damage to the surface of the battery pack.

[0037] Furthermore, the side wall of the data pole 4 is provided with a scale that cooperates with the positioning pointer 513. Multiple grooves are formed at the bottom of the data pole 4, each containing a sliding rod that cooperates with the limiting slide plate 511 and a threaded rod that cooperates with the screw hole plate 512. One end of the threaded rod is connected to the power output shaft of the servo motor 6. The scale, in conjunction with the positioning pointer 513, provides the operator with a visual positional reference, facilitating precise adjustment of the position of the limiting component 5. The sliding rod and threaded rod in the grooves at the bottom of the data pole 4 cooperate with the limiting slide plate 511 and the screw hole plate 512, respectively. Driven by the servo motor 6, they can stably and precisely control the movement of the limiting component 5 on the data pole 4, thereby achieving precise adjustment of the battery pack positioning.

[0038] Furthermore, a rectangular opening is provided at the center of the slide table 3, and multiple fixing blocks are provided on the inner sidewall of the rectangular opening, which respectively cooperate with the screw 11 and the limiting rod 12. The rectangular opening at the center of the slide table 3 and the setting of the fixing blocks enable the screw 11 and the limiting rod 12 to be stably connected to the slide table 3. When the drive motor drives the screw 11 to rotate, the interaction between the threads and the limiting action of the limiting rod 12 can reliably realize the lifting and lowering of the slide table 3 on the outer sidewall of the mounting frame 1, ensuring the smoothness and accuracy of the lifting and lowering process of the slide table 3, thereby ensuring the accuracy of the synchronous lifting and lowering adjustment of components such as the data rod 4 and the limiting component 5.

[0039] Furthermore, the modular multi-motor controller 30 is electrically connected to the laser welding intelligent control system via wires. This electrical connection allows the entire device to operate under the unified scheduling of the intelligent control system. The laser welding intelligent control system can precisely control the modular multi-motor controller 30, thereby precisely controlling the operation of multiple servo motors 6, and adjusting the position of the limit component 5. This ensures that the laser welding head 2 can accurately weld the battery pack, improving the automation level and welding accuracy of the welding process.

[0040] Furthermore, two sets of screws 11 are symmetrically rotatably connected to one side wall of the mounting frame 1, and two sets of limiting rods 12 are symmetrically provided on the other side wall of the mounting frame 1. Each set has two screws 11 and two limiting rods 12. One end of the two sets of screws 11 is rotatably connected to the base 31, and the two sets of limiting rods 12 are fixedly connected to the base 31. The screws 11 and limiting rods 12 on the mounting frame 1 provide a stable drive and limiting structure for the lifting and lowering of the slide table 3. By driving the screws 11 to rotate synchronously through the drive motor, and cooperating with the limiting rods 12, the slide table 3 can be lifted and lowered smoothly and accurately, thereby driving the data rod 4, the limiting component 5 and the servo motor 6 to lift and lower synchronously, ensuring the stability and accuracy of the entire device during the adjustment process, and helping to improve the accuracy of battery pack welding positioning.

[0041] Furthermore, the base 31 has a square opening at its center that mates with the laser welding head 2. One side of the base 31 has a positioning element 32 for clamping and positioning the cooling tube. The positioning element 32 has a circular opening with a rubber ring inside. Multiple adjusting screws are located on the outer wall of the positioning element 32. The square opening at the center of the base 31 facilitates the passage of the laser welding head 2 for welding. The positioning element 32 clamps and positions the cooling tube, the rubber ring inside the circular opening increases friction with the cooling tube to prevent it from shaking, and the adjusting screws allow for flexible adjustment according to different sizes of the cooling tube, ensuring stable installation during operation, effectively cooling the heat generated during welding, improving welding quality, and extending the equipment's lifespan.

[0042] Working principle:

[0043] First, the top of the mounting bracket 1 is installed on the bottom of the mobile device. The mounting bracket 1 is connected to the laser driver through a wire. Then, the drive motor in the mounting bracket 1 drives multiple screws 11 to rotate synchronously. With the interaction between the screws and the limiting action of the limiting rod 12, the drive slide 3 can be raised and lowered on the outer wall of the mounting bracket 1. The raising and lowering of the slide 3 can drive multiple data rods 4, limiting components 5 and servo motors 6 to be raised and lowered synchronously.

[0044] When the data rod 4 descends, it drives the limiting component 5 to move to the bottom. The micro motor 514 can be activated, and the power of the micro motor 514 drives the gear to rotate. The gear drives the positioning block 52 that meshes with it to rise and fall. Each protective cover 51 has two positioning blocks 52 at the bottom. The two positioning blocks 52 can be driven to rise and fall independently by the adjacent micro motor 514. That is, one of the positioning blocks 52 can be controlled to move to the bottom and abut against the side wall of the battery pack. At this time, the servo motor 6 can be activated, and the power output of the servo motor 6 drives the screw plate 512 to move horizontally at the bottom of the data rod 4 to achieve clamping and positioning of the battery pack. The positioning blocks 52 at different positions can be extended and retracted to adapt to the positioning and clamping of battery packs of different sizes and shapes.

[0045] Next, the intelligent laser welding control system controls the modular multi-motor controller 30 and multiple servo motors 6 to operate. The servo motors 6 drive the corresponding limit components 5 to adjust their positions. When two limit components 5 clamp the battery pack, they move synchronously to the same position, which can drive the mounting bracket 1 to adjust its position at the bottom of the mobile device. The adjustment is highly accurate, and the position of the positioning pointer 513 can be observed by a camera or the naked eye, or the position of the protective cover 51 can be accurately determined by the built-in laser movement position rangefinder. This allows for precise adjustment of the current position of the laser welding head 2, clearly understanding the specific welding point position of the laser welding head 2 on the top of the battery pack.

[0046] It should be noted that during clamping and positioning, the rollers on the positioning plate 53 can be used to contact the surface of the battery pack and roll on its surface. This function can achieve flexible clamping, which is more flexible and easier to adjust compared to clamping through the anti-slip surface on one side of the positioning block 52.

[0047] When the data lever 4 rises, it drives multiple limiting components 5 to move to the top. This prevents the laser welding head 2 from moving horizontally. The movement of the limiting components 5 will not cause them to touch the battery pack, thus affecting the movement effect and preventing inaccurate adjustment of the position.

[0048] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A welding guide positioning device for battery pack production, characterized by: The utility model provides a laser welding machine, including the mounting frame (1), one end of mounting frame (1) is installed on the welding machine, the other end of mounting frame (1) is equipped with the telescopic laser welding head (2), the outside wall of mounting frame (1) is threadedly connected with the sliding table (3), one side of sliding table (3) is equipped with the modular multi motor controller (30), the other side of sliding table (3) is equipped with the base (31), the outside wall of sliding table (3) is equipped with a plurality of data pole (4), a plurality of data pole (4) are all threadedly connected with the limiting component (5), one end of data pole (4) is equipped with servo motor (6) that can drive limiting component (5) moves, a plurality of servo motor (6) are electrically connected with modular multi motor controller (30) through wire, limiting component (5) includes the protective cover (51) that is threadedly connected on data pole (4), one side of protective cover (51) is telescopically connected with the locating block (52), and the locating plate (53) is equipped on the locating block (52), Two limiting sliding plates (511) and a threaded hole plate (512) are symmetrically arranged on the protective cover (51), the limiting sliding plate (511) is provided with a positioning pointer (513), the two limiting sliding plates (511) are slidably connected at the bottom of the data pole (4), the threaded hole plate (512) is threadedly connected at the bottom of the data pole (4), and the two sides of the protective cover (51) are provided with a micro motor (514), the power output shaft of the two micro motors (514) is provided with a gear, one side of the locating block (52) is provided with a gear slot, the gear slot is meshed with the gear, and the other side of the locating block (52) is provided with an anti-skid groove.

2. The welding guide positioning device for battery production according to claim 1, characterized in that: The locating plate (53) is connected to the side wall of the locating block (52), one side of the locating plate (53) is provided with a strip-shaped groove, and a plurality of rollers arranged in an array are rotatably arranged in the strip-shaped groove.

3. The welding guide positioning device for battery production according to claim 1, characterized in that: A scale is arranged on the side wall of the data pole (4) and matched with the positioning pointer (513), a plurality of recesses are formed at the bottom of the data pole (4), a plurality of slide rods matched with the limiting sliding plates (511) and threaded rods matched with the threaded hole plates (512) are respectively arranged in the recesses, and one end of the threaded rod is connected with the power output shaft of the servo motor (6).

4. The welding guide positioning device for battery production of claim 1, wherein: A rectangular opening is formed in the center of the sliding table (3), and a plurality of fixing blocks matched with the threaded rods (11) and the limiting rods (12) are arranged on the inner side wall of the rectangular opening.

5. The welding guide positioning device for battery production of claim 1, wherein: The modular multi motor controller (30) is electrically connected with the laser welding intelligent control system through wires.

6. The welding guide positioning device for battery production of claim 1, wherein: Two groups of threaded rods (11) are symmetrically and rotatably connected to the side wall of one end of the mounting frame (1), two groups of limiting rods (12) are symmetrically arranged on the side wall of the other end of the mounting frame (1), and each group is provided with two threaded rods (11) and limiting rods (12), one end of the two groups of threaded rods (11) is rotatably connected to the base (31), and the two groups of limiting rods (12) are fixedly connected to the base (31).

7. The welding guide positioning device for battery production of claim 6, wherein: The center of the base (31) is provided with a square opening matched with the laser welding head (2), one side of the base (31) is provided with a positioning piece (32) for clamping and positioning the cooling pipe, a circular opening is formed in the positioning piece (32), a rubber ring is arranged in the circular opening, and a plurality of adjusting screws are arranged on the outer side wall of the positioning piece (32).

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