Welding guiding and positioning device for battery pack production

Abstract

The invention relates to the field of battery pack welding, in particular to a welding guiding and positioning device for battery pack production, which comprises a mounting rack, one end of the mounting rack is mounted on a welding machine, the other end of the mounting rack is provided with a telescopic laser welding head, and the outer side wall of the mounting rack is in threaded connection with a sliding table; a modularized multi-motor controller is arranged on one side of the sliding table, a base is arranged on the other side of the sliding table, a plurality of data rods are installed on the outer side wall of the sliding table, limiting assemblies are connected to the data rods in a threaded mode, and servo motors capable of driving the limiting assemblies to move are arranged at one ends of the data rods. The battery pack is clamped through the limiting assembly, under the cooperation of the modularized multi-motor controller and the intelligent system, the position of the limiting assembly can be adjusted as required, the sliding table is matched to adjust the positioning of the battery pack, and the laser welding head is accurately matched, so that the problem that a traditional device cannot be adjusted in time is solved, the positioning precision is improved, and efficient and accurate welding of the battery pack is guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of battery pack welding, and particularly to a welding guiding and positioning device for battery pack production. Background Art

[0002] In the battery welding positioning and dust removal device and battery welding machine with the application number CN202010969785.9, which relates to the field of lithium battery manufacturing. The battery welding positioning and 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 and dust removal component, and the first driving component is connected to the first positioning and dust removal component; the second dust removal module includes a plurality of second positioning and dust removal components and a driving device, and the second positioning and dust removal component and the first positioning and dust removal component can enclose each other to form a receiving cavity; the driving device and the first driving component are used to drive the first positioning and dust removal component and the second positioning and dust removal component to approach or move away from the middle of the receiving cavity; the module driving component drives the first dust removal module and the second dust removal module to approach or move away from each other; the battery welding positioning and dust removal device and battery welding machine of this invention can accurately position the battery before welding, blow protective gas and remove dust from the battery during welding, and ensure the welding quality.

[0003] In the prior art including the above patents, when using laser welding equipment in battery pack production, it is required that the position where the laser irradiates on the workpiece is very precise without deviation, because the beam after laser focusing is very small, the weld seam is narrow, and if the position is incorrect, the welding effect will be greatly reduced. Existing positioning devices all perform centering positioning, but the position between the positioned position and the laser head of the laser welding equipment cannot be adjusted and changed quickly and timely. When processing and welding different types of battery packs, the laser welding position needs to be changed, but the positioned position of the positioning device cannot change accordingly, resulting in poor positioning accuracy.

[0004] Therefore, it is very necessary to invent a welding guiding and positioning device for battery pack production to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a welding guiding and positioning device for battery pack production. By clamping the battery pack with a limiting component, under the coordination of a modular multi-motor controller and an intelligent system, the position of the limiting component can be adjusted as needed, and the battery pack positioning can be adjusted in cooperation with a sliding table to be accurately adapted to the laser welding head, so as to solve the problem that existing positioning devices in the prior art all perform centering positioning, but the position between the positioned position and the laser head of the laser welding equipment cannot be adjusted and changed quickly and timely. When processing and welding different types of battery packs, the laser welding position needs to be changed, but the positioned position of the positioning device cannot change accordingly, resulting in poor positioning accuracy.

[0006] To achieve the above object, the present invention provides the following technical solution: A welding guiding and positioning device for battery pack production, including a mounting frame, one end of the mounting frame is installed on a welding machine, the other end of the mounting frame is provided with a telescopic laser welding head, a sliding table is threadedly connected to the outer side wall of the mounting frame, a modular multi-motor controller is provided on one side of the sliding table, a base is provided on the other side of the sliding table, a plurality of data rods are installed on the outer side wall of the sliding table, a limiting component is threadedly connected to each of the plurality of data rods, and one end of the data rod is provided with a servo motor capable of driving the limiting component to move; the plurality of servo motors are electrically connected to the modular multi-motor controller through wires; the limiting component includes a protective cover threadedly connected to the data rod, one side of the protective cover is telescopically connected with a positioning block, and a positioning plate is provided on the positioning block.

[0007] As a preferred solution of the present invention, two limiting sliding plates and a threaded hole plate are symmetrically provided on the protective cover, positioning pointers are provided on the limiting sliding plates, the two limiting sliding plates are slidably connected to the bottom of the data rod, the threaded hole plate is threadedly connected to the bottom of the data rod, micro motors are provided on both sides of the protective cover, and gears are provided on the power output shafts of the two micro motors; a tooth groove is provided on one side of the positioning block, the tooth groove is meshed with the gear, and an anti-slip groove is provided on the other side of the positioning block.

[0008] As a preferred solution of the present invention, the positioning plate is connected to the side wall of the positioning block, a strip-shaped groove is provided on one side of the positioning plate, and a plurality of rollers arranged in an array are rotatably provided in the inner cavity of the strip-shaped groove.

[0009] As a preferred solution of the present invention, a scale cooperating with the positioning pointer is provided on the side wall of the data rod, a plurality of grooves are opened at the bottom of the data rod, a sliding rod cooperating with the limiting sliding plate and a threaded rod cooperating with the threaded hole plate are respectively provided in the plurality of grooves, and one end of the threaded rod is connected to the power output shaft of the servo motor.

[0010] As a preferred solution of the present invention, a rectangular opening is opened at the center of the sliding table, and a plurality of fixing blocks respectively cooperating with a screw rod and a limiting rod are provided on the inner side wall of the rectangular opening.

[0011] As a preferred solution of the present invention, the modular multi-motor controller is electrically connected to the laser welding intelligent control system through wires.

[0012] As a preferred solution of the present invention, two groups of screw rods are symmetrically and rotatably connected to the side wall of one end of the mounting frame, two groups of limiting rods are symmetrically provided on the side wall of the other end of the mounting frame, and each group is provided with two screw rods and limiting rods. One end of the two groups of screw rods is rotatably connected to the base, and the two groups of limiting rods are fixedly connected to the base.

[0013] As a preferred embodiment of the present invention, a square opening adapted to the laser welding head is provided at the center of the base. A positioning member for clamping and positioning the cooling pipe is provided on one side of the base. A circular opening is provided on the positioning member, and a rubber ring is provided inside the circular opening. A plurality of adjusting screws are provided on the outer side wall of the positioning member.

[0014] In the above technical solution, compared with the prior art, the technical effects and advantages provided by the present invention are as follows: 1. For this welding guiding and positioning device for battery pack production, the battery pack is clamped and positioned by the limiting component, and in cooperation with the modular multi-motor controller and the laser welding intelligent control system, the position of the limiting component can be adjusted according to the welding requirements of different battery packs. Through the adjustment of the sliding table and the limiting component, the positioning of the battery pack is adjusted to accurately match the laser welding head, overcoming the drawback that the existing positioning device cannot be adjusted in time according to the welding position, improving the positioning accuracy, and ensuring the efficient and accurate development of the welding work for various battery packs; 2. In this welding guiding and positioning device for battery pack production, when welding different types of battery packs, through the lifting of the data rod, multiple limiting components can be synchronously lifted and adjusted; when descending, the limiting component can be accurately adjusted to a suitable position to achieve accurate clamping and positioning of the battery pack, ensuring accurate adaptation to the position of the laser welding head; when rising, it can avoid the contact between the limiting component and the battery pack when the laser welding head moves horizontally, ensuring the accuracy of the moving adjustment, overcoming the drawbacks in the adjustment process of the existing positioning device, improving the welding positioning accuracy of the battery pack, and ensuring the efficiency of the welding work for various battery packs; 3. In this welding guiding and positioning device for battery pack production, when facing battery packs of different sizes and appearance shapes, the limiting component can achieve positioning and clamping through its own flexible adjustment. The micro-motor inside drives the positioning block to lift, and in cooperation with the rolling of the rollers on the positioning plate on the surface of the battery pack, it can not only adapt to various battery packs, but also improve the 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 the position, helping the laser welding head to accurately position the welding point, comprehensively ensuring the high precision of the battery pack welding positioning and the efficiency of the welding work, and solving the deficiencies of the traditional positioning device in adapting to the diversity of battery packs and adjustment. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0016] Figure 1 Schematic diagram of the overall three-dimensional structure of the present invention Figure 1 ; Figure 2 Schematic diagram of the overall three-dimensional structure of the present invention Figure 2 ; Figure 3 Schematic diagram of the structure of the fixing block of the present invention; Figure 4 Schematic diagram of the structure of the positioning member of the present invention; Figure 5 Schematic diagram of the connection relationship structure of the data rod, the limiting component and the servo motor of the present invention; Figure 6 Schematic diagram of the connection relationship structure of the limiting slide plate and the screw hole plate with the data rod of the present invention; Figure 7 Schematic diagram of the sectional view of the data rod of the present invention; Figure 8 Schematic diagram of the structure of the limiting component of the present invention; Figure 9 Schematic diagram of the structure of the positioning plate of the present invention; Figure 10 Schematic diagram of the structure of the positioning pointer of the present invention; Figure 11 Schematic diagram of the sectional view of the protective cover of the present invention.

[0017] Explanation of reference numerals: 1. Mounting frame; 11. Screw; 12. Limiting rod; 2. Laser welding head; 3. Slide table; 30. Modular multi-motor controller; 31. Base; 32. Positioning member; 4. Data rod; 5. Limiting component; 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 manners

[0018] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further introduced in detail below with reference to the accompanying drawings.

[0019] The present invention provides as Figures 1-11A welding guiding and positioning device for battery pack production as shown, including a mounting frame 1, one end of the mounting frame 1 is mounted on a welding machine, the other end of the mounting frame 1 is provided with a telescopic laser welding head 2, a sliding table 3 is threadedly connected to the outer side wall of the mounting frame 1, a modular multi-motor controller 30 is provided on one side of the sliding table 3, a base 31 is provided on the other side of the sliding table 3, a plurality of data rods 4 are mounted on the outer side wall of the sliding table 3, a limiting component 5 is threadedly connected to each of the plurality of data rods 4, and a servo motor 6 for driving the limiting component 5 to move is provided at one end of the data rod 4; the plurality of servo motors 6 are electrically connected to the modular multi-motor controller 30 through wires; the limiting component 5 includes a protective cover 51 threadedly connected to the data rod 4, a positioning block 52 is telescopically connected to one side of the protective cover 51, and a positioning plate 53 is provided on the positioning block 52; through such a structural setting, multi-directional adjustment and positioning during the welding process of the battery pack can be achieved. The mounting frame 1 connects the device to the welding machine to provide an installation basis; the telescopic laser welding head 2 facilitates flexible adjustment of the welding position; the threaded connection between the sliding table 3 and the mounting frame 1, in cooperation with the data rod 4, the limiting component 5 and the servo motor 6, can achieve precise positioning and clamping of the battery pack, providing a stable basis for subsequent welding work.

[0020] Further, two limiting sliding plates 511 and a threaded hole plate 512 are symmetrically provided on the protective cover 51, a positioning pointer 513 is provided on the limiting sliding plate 511, the two limiting sliding plates 511 are slidably connected to the bottom of the data rod 4, the threaded hole plate 512 is threadedly connected to the bottom of the data rod 4, and micro motors 514 are provided on both sides of the protective cover 51, and gears are provided on the power output shafts of the two micro motors 514; a tooth groove is provided on one side of the positioning block 52, the tooth groove is meshed with the gear, and an anti-slip groove is provided on the other side of the positioning block 52; the settings of the limiting sliding plates 511 and the threaded hole plate 512 make 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 to facilitate the operator to intuitively understand the adjustment position. The micro motor 514 is meshed with the tooth groove of the positioning block 52 through the gear, and the telescopic movement of the positioning block 52 can be precisely controlled to adapt to battery packs of different sizes and appearance shapes, and the anti-slip groove enhances the stability of the positioning block 52 when clamping the battery pack.

[0021] Further, the positioning plate 53 is connected to the side wall of the positioning block 52, a strip-shaped groove is provided on one side of the positioning plate 53, and a plurality of rollers arranged in an array are rotatably provided in the inner cavity of the strip-shaped groove; the roller design on the positioning plate 53 enables the rollers to be in contact with the surface of the battery pack and roll when clamping the battery pack. Compared with simply clamping through the anti-slip surface on one side of the positioning block 52, it has higher flexibility, is more convenient for adjustment, can better meet the requirements of fine position adjustment of the battery pack during the positioning process, and at the same time reduces damage to the surface of the battery pack.

[0022] Furthermore, a scale is provided on the side wall of the data rod 4 for cooperating with the positioning pointer 513. A plurality of grooves are formed at the bottom of the data rod 4, and a slide rod for cooperating with the limit slide plate 511 and a threaded rod for cooperating with the threaded hole plate 512 are respectively arranged in the plurality of grooves. One end of the threaded rod is connected to the power output shaft of the servo motor 6; the scale cooperates with the positioning pointer 513 to provide an intuitive position reference for the operator, facilitating the precise adjustment of the position of the limit assembly 5. The slide rod and the threaded rod in the grooves at the bottom of the data rod 4 cooperate with the limit slide plate 511 and the threaded hole plate 512 respectively, and under the drive of the servo motor 6, the movement of the limit assembly 5 on the data rod 4 can be stably and precisely controlled, thereby realizing the precise adjustment of the positioning of the battery pack.

[0023] Furthermore, a rectangular opening is formed at the center of the slide table 3, and a plurality of fixing blocks for respectively cooperating with the screw rod 11 and the limit rod 12 are arranged on the inner side wall of the rectangular opening; the rectangular opening at the center of the slide table 3 and the arrangement of the fixing blocks enable the screw rod 11 and the limit rod 12 to be stably connected to the slide table 3. When the drive motor drives the screw rod 11 to rotate, through the interaction between the threads and the limiting effect of the limit rod 12, the slide table 3 can be reliably lifted and lowered on the outer side wall of the mounting frame 1, ensuring the smoothness and precision of the lifting process of the slide table 3, and further ensuring the accuracy of the synchronous lifting adjustment of components such as the data rod 4 and the limit assembly 5.

[0024] Furthermore, the modular multi-motor controller 30 is electrically connected to the laser welding intelligent control system through a wire; the electrical connection between the modular multi-motor controller 30 and the laser welding intelligent control system enables the entire device to work under the unified scheduling of the intelligent control system. The laser welding intelligent control system can precisely control the modular multi-motor controller 30, and further precisely control the operation of multiple servo motors 6, realizing the adjustment of the position of the limit assembly 5, ensuring that the laser welding head 2 can accurately weld the battery pack, and improving the automation degree and welding precision of the welding process.

[0025] Furthermore, two groups of screw rods 11 are symmetrically and rotatably connected to one side wall of the mounting frame 1, and two groups of limit rods 12 are symmetrically arranged on the other side wall of the mounting frame 1. Each group is provided with two screw rods 11 and limit rods 12. One ends of the two groups of screw rods 11 are rotatably connected to the base 31, and the two groups of limit rods 12 are fixedly connected to the base 31; the arrangement of the screw rods 11 and the limit rods 12 on the mounting frame 1 provides a stable driving and limiting structure for the lifting of the slide table 3. By driving the screw rods 11 to rotate synchronously by the drive motor and cooperating with the limiting of the limit rods 12, the slide table 3 can be lifted and lowered smoothly and precisely, and then drive the data rod 4, the limit assembly 5 and the servo motor 6 to lift synchronously, ensuring the stability and accuracy of the entire device during the adjustment process, and being beneficial to improving the precision of the welding positioning of the battery pack.

[0026] Further, a square opening adapted to the laser welding head 2 is provided at the center of the base 31. A positioning member 32 for clamping and positioning the cooling pipe is provided on one side of the base 31. A circular opening is provided on the positioning member 32, and a rubber ring is provided in the circular opening. A plurality of adjusting screws are provided on the outer side wall of the positioning member 32. The square opening at the center of the base 31 facilitates the laser welding head 2 to pass through and perform welding work. The positioning member 32 is used for clamping and positioning the cooling pipe. The rubber ring in the circular opening can increase the friction with the cooling pipe to prevent the cooling pipe from shaking. The adjusting screws can be flexibly adjusted according to the different sizes of the cooling pipe to ensure the stable installation of the cooling pipe during operation, ensure effective cooling of the heat generated during welding, improve the welding quality and the service life of the equipment.

[0027] Working principle: First, install the top of the mounting frame 1 at the bottom of the movable device, connect the mounting frame 1 to the laser driver through a wire, and then drive a plurality of screws 11 to rotate synchronously through the drive motor in the mounting frame 1. With the interaction between the threads and the limiting effect of the limiting rod 12, it is possible to drive the sliding table 3 to move up and down on the outer side wall of the mounting frame 1. The lifting of the sliding table 3 can drive a plurality of data rods 4, the limiting assembly 5 and the servo motor 6 to move up and down synchronously for adjustment; When the data rod 4 descends and drives the limiting assembly 5 to move towards the bottom, the micro motor 514 can be started. The power of the micro motor 514 drives the gear to rotate, and the gear drives the positioning block 52 engaged with it to move up and down. Two positioning blocks 52 are provided at the bottom of each protective cover 51, and the two positioning blocks 52 can be individually driven by the adjacent micro motor 514 to move up and down. That is to say, one of the positioning blocks 52 can be controlled to move towards the bottom to abut against the side wall of the battery pack. At this time, the servo motor 6 can be started, and the power output of the servo motor 6 drives the threaded hole plate 512 to move horizontally at the bottom of the data rod 4 for adjustment, so as to realize the clamping and positioning of the battery pack. The positioning and clamping of battery packs with different sizes and appearance shapes can be realized by adjusting the expansion and contraction of the positioning blocks 52 at different positions; Next, the laser welding intelligent control system controls the modular multi-motor controller 30 and a plurality of servo motors 6 to operate, and drives the limiting assemblies 5 at corresponding positions to adjust their positions through the servo motors 6. When two limiting assemblies 5 clamp the battery pack and move to the same position synchronously, they can drive the mounting frame 1 to adjust its position at the bottom of the movable device. The accuracy of this adjustment is high, and the position of the positioning pointer 513 moving can be observed through a camera or the naked eye, or the position of the protective cover 51 moving can be accurately understood through the built-in laser moving position rangefinder, so as to accurately adjust the position of the current laser welding head 2 and clearly understand the specific welding point position of the current laser welding head 2 on the top of the battery pack; It should be noted that during clamping and positioning, the rollers on the positioning plate 53 can be fitted to the surface of the battery pack and roll on its surface. This function can achieve flexible clamping, which is more flexible than clamping through the anti-slip surface on one side of the positioning block 52 and is more convenient for adjustment. When the data rod 4 rises and drives the plurality of limiting components 5 to move upward, it can avoid the movement of the limiting components 5 touching the battery pack when the laser welding head 2 moves horizontally, which affects the movement effect and avoids inaccurate movement adjustment positions.

[0028] Only some exemplary embodiments of the present invention have been described by way of illustration. Undoubtedly, for those of ordinary skill in the art, various different ways can be used to modify the described embodiments without departing from the spirit and scope of the present invention. Therefore, the above 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 and positioning device for battery pack production, characterized in that: The invention comprises a mounting frame (1), one end of the mounting frame (1) is mounted on a welding machine, 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), one side of the slide table (3) is provided with a modular multi-motor controller (30), the other side of the slide table (3) is provided with a base (31), a plurality of data rods (4) are mounted on the outer wall of the slide table (3), a limit assembly (5) is threadedly connected to the plurality of data rods (4), one end of the data rod (4) is provided with a servo motor (6) capable of driving the limit assembly (5) to move; the plurality of servo motors (6) are electrically connected to the modular multi-motor controller (30) via a wire; the limit assembly (5) comprises a protective cover (51) threadedly connected to the data rod (4), one side of the protective cover (51) is retractably connected to a positioning block (52), and a positioning plate (53) is provided on the positioning block (52).

2. A welding guide and positioning device for battery pack production according to claim 1, characterized in that: The protective cover (51) is symmetrically provided with two limit slides (511) and a screw hole plate (512); the limit slide (511) is provided with a positioning pointer (513); the two limit slides (511) are slidably connected to the bottom of the data rod (4); 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 the two micro motors (514); a tooth groove is provided on one side of the positioning block (52), the tooth groove is meshed with the gear; and an anti-slip groove is provided on the other side of the positioning block (52).

3. A welding guide and positioning device for battery pack production according to claim 2, characterized in that: The positioning plate (53) is connected to the side wall of the positioning block (52); a strip groove is provided on one side of the positioning plate (53); a plurality of rollers arranged in an array are rotatably provided in the inner cavity of the strip groove.

4. The welding guide and positioning device for battery pack production according to claim 2, characterized in that: A scale that cooperates with the positioning pointer (513) is provided on the side wall of the data rod (4), and a plurality of grooves are provided at the bottom of the data rod (4). A sliding rod that cooperates with the limit slide plate (511) and a threaded rod that cooperates with the screw hole plate (512) are respectively provided in the plurality of grooves, and one end of the threaded rod is connected to the power output shaft of the servo motor (6).

5. The welding guide and positioning device for battery pack production according to claim 1, characterized in that: A rectangular opening is provided at the center of the slide (3), and a plurality of fixing blocks respectively cooperating with the screw rod (11) and the limiting rod (12) are provided on the inner side wall of the rectangular opening.

6. The welding guide and positioning device for battery pack production according to claim 1, characterized in that: The modular multi-motor controller (30) is electrically connected to the laser welding intelligent control system via a wire.

7. A welding guide and positioning device for battery pack production according to claim 1, characterized in that: Two groups of screw rods (11) are symmetrically rotatably connected to the side wall at one end of the mounting frame (1), and two groups of limit rods (12) are symmetrically provided on the side wall at the other end of the mounting frame (1), and each group is provided with two screw rods (11) and a limit rod (12), one end of the two groups of screw rods (11) is rotatably connected to the base (31), and the two groups of limit rods (12) are fixedly connected to the base (31).

8. A welding guide and positioning device for battery pack production according to claim 7, characterized in that: A square opening is provided at the center of the base (31) for cooperating with the laser welding head (2); a positioning piece (32) for clamping and positioning the cooling pipe is provided on one side of the base (31); a circular opening is provided on the positioning piece (32); a rubber ring is provided in the circular opening; and a plurality of adjustment screws are provided on the outer wall of the positioning piece (32).

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