A laser welding machine drive

Abstract

The utility model discloses a laser welding machine drive arrangement, including base, both sides of the top of base all are fixedly connected with the support riser, the inner wall cooperation and connection of support riser have the support column, the inside fixed connection of base has the support beam, both sides of the top of support beam all are rotatively connected with first ball screw, the inside fixed connection of support column has ball screw pair, ball screw pair with first ball screw is connected with screw thread, the outer wall bottom of first ball screw fixedly connected with worm wheel. The utility model relates to laser welding equipment technical field, solved in the prior art, gantry type laser welding machine's gantry stand is fixed in the both sides of welding workstation, and the height of crossbeam and laser welding module is adjusted, leads to the height adjustment of laser welding module to exist certain limitation, and the welding demand of different size and shape workpiece is difficult to adapt to the problem of certain limitation.

Description

Technical Field

[0001] This utility model relates to the field of laser welding equipment technology, specifically a laser welding machine drive device. Background Technology

[0002] Laser welding machines are precision equipment that use high-energy laser beams to fuse materials. Their core principle is to generate high temperatures through focused laser light, causing localized melting of the material to form a weld. They are widely used in industries such as automotive manufacturing, medical devices, electronics, and sheet metal processing. By focusing laser light to heat the material and form a molten pool, they feature a small heat-affected zone, minimal welding deformation, and a high degree of automation. They are suitable for various processes such as spot welding and lap welding of thin-walled materials and precision parts. In existing technologies, the gantry columns of gantry laser welding machines are fixed to both sides of the welding worktable, supporting the crossbeam and laser welding module. The height of the crossbeam cannot be adjusted, resulting in limitations in the height adjustment of the laser welding module and making it difficult to adapt to the welding needs of workpieces of different sizes and shapes. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a laser welding machine drive device, which solves the problem that in existing gantry laser welding machines, the gantry columns are fixed on both sides of the welding worktable to support the crossbeam and laser welding module, making it impossible to adjust the height of the crossbeam. This results in limitations in the height adjustment of the laser welding module, making it difficult to adapt to the welding needs of workpieces of different sizes and shapes.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a laser welding machine drive device, comprising a base, with supporting seats fixedly connected to both sides of the top of the base, a supporting column fitted to the inner wall of the supporting seats, a supporting beam fixedly connected inside the base, a first ball screw rotatably connected to both sides of the top of the supporting beam, a ball screw pair fixedly connected inside the supporting column, the ball screw pair being threadedly connected to the first ball screw, a worm gear fixedly connected to the bottom end of the outer wall of the first ball screw, a worm engaging with one side of the outer wall of the worm gear, the worm rotatably connected to the base, a first servo motor mounted on one side of the outer wall of the base, the output end of the first servo motor being drivenly connected to the worm, a crossbeam fixedly connected to the top of the supporting column, a movable seat movably connected to the top of the crossbeam, a linear motor fixedly connected to one side of the outer wall of the movable seat, a mover movably connected to the side of the linear motor away from the movable seat, and a lifting seat fixedly connected to the outer wall of the mover.

[0005] Preferably, a second ball screw is rotatably connected to the upper interior of the base, and a second servo motor is fixedly connected to one end of the second ball screw on the outer wall of the base. The output end of the second servo motor is connected to the second ball screw via a transmission. A workpiece fixing table is provided on the top of the base below the crossbeam. The workpiece fixing table is threadedly connected to the second ball screw. A third servo motor is fixedly connected to one end of the crossbeam, and a third ball screw is rotatably connected to the interior of the crossbeam. The movable seat is threadedly connected to the third ball screw.

[0006] Preferably, the top two sides of the base are fixedly connected to the bottom of the workpiece fixing table with first slide rails, the workpiece fixing table is connected to the first slide rails, the outer walls of the crossbeam are fixedly connected to second slide rails, and the movable seat is connected to the second slide rails.

[0007] Preferably, a first laser ranging sensor is fixedly connected to the top of the base on the side away from the second servo motor, and the first laser ranging sensor is correspondingly set with the workpiece fixing table. A second laser ranging sensor is fixedly connected to the top of the end of the crossbeam away from the third servo motor, and the second laser ranging sensor is correspondingly set with the moving base.

[0008] Preferably, a brake is provided on one side of the outer wall of the mover, and the brake is connected to the outer wall of the linear motor.

[0009] This utility model provides a laser welding machine drive device. It has the following advantages: The laser welding machine drive device, through the cooperation of a base, support stand, support column, support beam, first ball screw, ball screw pair, worm gear, worm, first servo motor, crossbeam, moving seat, linear motor, mover, and lifting seat, allows for height adjustment of the gantry frame of the laser welding machine. This height adjustment enables precise height adjustment of the crossbeam and laser welding head. Furthermore, the control system of the laser welding machine combines neural networks and fuzzy logic, allowing for dynamic optimization of the linear motor control parameters during welding, and precise height adjustment of the laser welding head. This provides a wider adjustment range for the laser welding head's height, thus meeting the welding needs of workpieces of different sizes and shapes. This significantly improves the welding accuracy and applicability of the laser welding machine.

[0010] By coordinating the base, crossbeam, moving seat, second servo motor, second ball screw, workpiece fixing table, third servo motor, and third ball screw, the control system of the laser welding machine incorporates intelligent algorithms. Combining neural networks with fuzzy logic, it dynamically optimizes the control parameters of the second and third servo motors. By controlling these motors, the laser welding head can be precisely moved horizontally along the X-axis, and the workpiece can be precisely moved horizontally along the Y-axis. This eliminates the need for the laser welding head to move along the Y-axis on the gantry, reducing the number of drive structures on the gantry and lowering the moment of inertia of the laser welding head. This helps to further improve laser welding accuracy and extend the lifespan of the laser welding head. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the appearance of the present utility model;

[0013] Figure 3 for Figure 1 A magnified view of a portion of region A in the middle;

[0014] Figure 4 for Figure 1 A magnified view of a portion of region B in the middle;

[0015] Figure 5 for Figure 2 A magnified view of a portion of region C.

[0016] In the diagram: 1. Base; 2. Support stand; 3. Support column; 4. Support beam; 5. First ball screw; 6. Ball screw pair; 7. Worm gear; 8. Worm; 9. First servo motor; 10. Crossbeam; 11. Moving seat; 12. Linear motor; 13. Moving element; 14. Lifting seat; 15. Second servo motor; 16. Second ball screw; 17. Workpiece fixing table; 18. Third servo motor; 19. Third ball screw; 20. First slide rail; 21. Second slide rail; 22. First laser rangefinder; 23. Second laser rangefinder; 24. Brake. Detailed Implementation

[0017] 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.

[0018] In the existing technology, the gantry columns of the gantry laser welding machine are fixed on both sides of the welding worktable to support the crossbeam and the laser welding module. The height of the crossbeam cannot be adjusted, which limits the height adjustment of the laser welding module and makes it difficult to meet the welding needs of workpieces of different sizes and shapes.

[0019] In view of this, the present invention provides a laser welding machine drive device. Through the cooperation of the base, support stand, support column, support beam, first ball screw, ball screw pair, worm gear, worm, first servo motor, crossbeam, moving seat, linear motor, mover, and lifting seat, the gantry of the laser welding machine adopts an adjustable height design, which can adjust the height of the crossbeam and the laser welding head. Furthermore, the control system of the laser welding machine combines neural networks and fuzzy logic. During the welding process, the control parameters of the linear motor are dynamically optimized, and the laser welding head is precisely adjusted in height, so that the height of the laser welding head can have a larger adjustment range, thereby meeting the welding needs of workpieces of different sizes and shapes, and significantly improving the welding accuracy and applicability of the laser welding machine.

[0020] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires. Appropriate controllers and encoders should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0021] Depend on Figure 1-5 It is known that a laser welding machine drive device includes a base 1, with support stands 2 fixedly connected to both sides of the top of the base 1, support columns 3 connected to the inner wall of the support stands 2, support beams 4 fixedly connected inside the base 1, first ball screws 5 rotatably connected to both sides of the top of the support beams 4, ball screw pairs 6 fixedly connected inside the support columns 3, ball screw pairs 6 threadedly connected to the first ball screws 5, worm gears 7 fixedly connected to the bottom of the outer wall of the first ball screws 5, worm 8 meshing with one side of the outer wall of the worm gears 7, worm 8 rotatably connected to the base 1, a first servo motor 9 installed on one side of the outer wall of the base 1, the output end of the first servo motor 9 being drivenly connected to the worm 8, a crossbeam 10 fixedly connected to the top of the support columns 3, a movable seat 11 movably connected to the top of the crossbeam 10, a linear motor 12 fixedly connected to one side of the outer wall of the movable seat 11, a mover 13 movably connected to the side of the linear motor 12 away from the movable seat 11, and a lifting seat 14 fixedly connected to the outer wall of the mover 13.

[0022] In the specific implementation process, it is worth noting that, through the cooperation between the base 1, the support stand 2, the support column 3, and the crossbeam 10, the support stand 2 and the support column 3 support and fix the crossbeam 10 on the top of the base 1, forming the gantry structure of the laser welding machine. Through the cooperation between the base 1, the support stand 2, the support column 3, the support beam 4, the first ball screw 5, the ball screw pair 6, the worm gear 7, the worm 8, and the first servo motor 9, the control system of the laser welding machine controls the first servo motor 9 to drive the worm 8 to rotate, which in turn drives the worm gear 7 and the first ball screw 5 to rotate on the support beam 4, causing the ball screw pair 6 to drive the support column 3 to move up and down, so that the two supports... The column 3 drives the crossbeam 10 and the laser welding head to adjust their height in the vertical direction. The outer wall of the support column 3 fits tightly with the inner wall of the support base 2, ensuring the stability of the support column 3 for the crossbeam 10. Simultaneously, after the first servo motor 9 stops, the first ball screw 5 supports the support column 3, ensuring the stability of the crossbeam 10 after height adjustment. Through the cooperation between the crossbeam 10, the moving base 11, the linear motor 12, the mover 13, and the lifting base 14, the laser welding head is installed on the lifting base 14. The control system of the laser welding machine controls the linear motor 12 to drive the mover 13 to perform lifting movements, thereby moving the lifting base 14 and the laser welding head in the vertical direction. During the welding process... During the process, the laser welding head is raised and lowered to achieve precise welding of the workpiece. Simultaneously, the laser welding machine's control system controls the horizontal movement of the moving seat 11 on top of the crossbeam 10, thereby driving the laser welding head to move along the X-axis. The laser welding machine's control system introduces intelligent algorithms into traditional PID control, combining neural networks and fuzzy logic to dynamically optimize the parameters of the PID controller, improving the accuracy of the laser welding head's raising and lowering movement, thus enhancing the precision of the laser welding process. This is achieved through a system consisting of a base 1, a support stand 2, a support column 3, a support beam 4, a first ball screw 5, a ball screw pair 6, a worm gear 7, a worm 8, a first servo motor 9, a crossbeam 10, and a moving seat 1. 1. The coordination between linear motor 12, mover 13, and lifting seat 14: The gantry of the laser welding machine adopts an adjustable height design, which can adjust the height of the crossbeam 10 and the laser welding head. Furthermore, the control system of the laser welding machine combines neural networks with fuzzy logic. During the welding process, the control parameters of linear motor 12 are dynamically optimized, and the laser welding head is precisely adjusted in height, so that the height of the laser welding head can have a larger adjustment range, thereby meeting the welding needs of workpieces of different sizes and shapes. This significantly improves the welding accuracy and applicability of the laser welding machine. The specific models of the first servo motor 9 and linear motor 12 are not limited, as long as they meet the usage requirements.

[0023] Furthermore, a second ball screw 16 is rotatably connected to the upper part of the base 1. A second servo motor 15 is fixedly connected to one end of the second ball screw 16 on the outer wall of the base 1. The output end of the second servo motor 15 is connected to the second ball screw 16. A workpiece fixing table 17 is provided on the top of the base 1 below the crossbeam 10. The workpiece fixing table 17 is threadedly connected to the second ball screw 16. A third servo motor 18 is fixedly connected to one end of the crossbeam 10. A third ball screw 19 is rotatably connected to the inside of the crossbeam 10. The moving seat 11 is threadedly connected to the third ball screw 19.

[0024] In the specific implementation process, it is worth noting that the top of the workpiece fixing table 17 is used to fix the welding workpiece. Through the cooperation between the base 1, the second servo motor 15, the second ball screw 16, and the workpiece fixing table 17, a threaded sleeve adapted to the second ball screw 16 is installed at the bottom of the workpiece fixing table 17. The control system of the laser welding machine controls the second servo motor 15 to drive the second ball screw 16 to rotate, realizing the horizontal movement of the workpiece fixing table 17. Through the cooperation between the crossbeam 10, the moving seat 11, the third servo motor 18, and the third ball screw 19, a threaded sleeve adapted to the third ball screw 19 is installed at the bottom of the moving seat 11. The control system of the laser welding machine controls the third servo motor 18 to drive the third ball screw 19 to rotate, realizing the horizontal movement of the moving seat 11 on the crossbeam 10, thereby allowing the laser welding head to move horizontally on the crossbeam 10. The laser welding machine moves on the base 1, crossbeam 10, moving seat 11, second servo motor 15, second ball screw 16, workpiece fixing table 17, third servo motor 18, and third ball screw 19. The control system of the laser welding machine introduces intelligent algorithms, combining neural networks and fuzzy logic to dynamically optimize the control parameters of the second servo motor 15 and the third servo motor 18. By controlling the second servo motor 15 and the third servo motor 18, the laser welding head can be moved precisely horizontally on the X-axis, and the welding workpiece can be moved precisely horizontally on the Y-axis. This reduces the number of drive structures on the gantry and reduces the moment of inertia of the laser welding head, thereby further improving the laser welding accuracy and the service life of the laser welding head. The specific models of the second servo motor 15 and the third servo motor 18 are not limited, as long as they meet the usage requirements.

[0025] Furthermore, the top two sides of the base 1 are fixedly connected to the first slide rail 20 at the bottom of the workpiece fixing table 17, the workpiece fixing table 17 is connected to the first slide rail 20, and the outer walls of the crossbeam 10 are fixedly connected to the second slide rail 21, and the movable seat 11 is connected to the second slide rail 21.

[0026] In the specific implementation process, it is worth noting that, through the cooperation between the base 1, the workpiece fixing table 17 and the first slide rail 20, the first slide rail 20 provides support to the workpiece fixing table 17 on both sides of its bottom, ensuring the stability of the workpiece fixing table 17 moving horizontally on the top of the base 1. Through the cooperation between the crossbeam 10, the moving seat 11 and the second slide rail 21, the second slide rail 21 provides support to the moving seat 11 on both sides of the crossbeam 10, ensuring the stability of the moving seat 11 moving on the crossbeam 10, and further improving the overall stability and accuracy of the laser welding machine drive device.

[0027] Furthermore, a first laser rangefinder 22 is fixedly connected to the top of the base 1 on the side away from the second servo motor 15. The first laser rangefinder 22 is correspondingly set to the workpiece fixing table 17. A second laser rangefinder 23 is fixedly connected to the top of the end of the crossbeam 10 away from the third servo motor 18. The second laser rangefinder 23 is correspondingly set to the moving seat 11.

[0028] In the specific implementation process, it is worth noting that through the cooperation between the base 1, the workpiece fixing table 17, and the first laser ranging sensor 22, the first laser ranging sensor 22 senses the position of the workpiece fixing table 17 in real time and transmits the measurement signal to the control system of the laser welding machine in real time. This facilitates the control system of the laser welding machine to accurately position and move the workpiece fixing table 17 and the fixed workpiece, thereby improving the accuracy and efficiency of laser welding. Through the cooperation between the crossbeam 10, the moving seat 11, and the second laser ranging sensor 23, the second laser ranging sensor 23 senses the position of the moving seat 11 in real time, ensuring the accurate movement of the moving seat 11 on the crossbeam 10, further improving the accuracy of laser welding. The specific models of the first laser ranging sensor 22 and the second laser ranging sensor 23 are not limited, as long as they meet the usage requirements.

[0029] Furthermore, a brake 24 is provided on one side of the outer wall of the mover 13, and the brake 24 is connected to the outer wall of the linear motor 12.

[0030] In the specific implementation process, it is worth noting that through the cooperation between the linear motor 12, the mover 13 and the brake 24, after the mover 13 moves to the specified height, the control system controls the brake 24 to quickly lock the position of the mover 13 when needed, preventing it from shifting due to inertia or other factors, thereby ensuring the stability and reliability of the welding process, further improving the stability of the laser welding head, and effectively improving the accuracy and efficiency of laser welding.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A laser welding machine drive device, comprising a base (1), characterized in that: The base (1) has a support stand (2) fixedly connected to both sides of its top. The inner wall of the support stand (2) is fitted with a support column (3). The base (1) has a support beam (4) fixedly connected inside. The support beam (4) has a first ball screw (5) rotatably connected to both sides of its top. The support column (3) has a ball screw pair (6) fixedly connected inside. The ball screw pair (6) is threadedly connected to the first ball screw (5). The bottom of the outer wall of the first ball screw (5) is fixedly connected with a worm gear (7). A worm (8) is meshed with one side of the outer wall of the worm gear (7). The worm gear (8) is rotatably connected to the base (1). A first servo motor (9) is installed on one side of the outer wall of the base (1). The output end of the first servo motor (9) is connected to the worm gear (8) for transmission. A crossbeam (10) is fixedly connected to the top of the support column (3). A movable seat (11) is movably connected to the top of the crossbeam (10). A linear motor (12) is fixedly connected to one side of the outer wall of the movable seat (11). A mover (13) is movably connected to the side of the linear motor (12) away from the movable seat (11). A lifting seat (14) is fixedly connected to the outer wall of the mover (13).

2. The laser welding machine drive device according to claim 1, characterized in that: A second ball screw (16) is rotatably connected to the upper part of the base (1). A second servo motor (15) is fixedly connected to one end of the second ball screw (16) on the outer wall of the base (1). The output end of the second servo motor (15) is connected to the second ball screw (16) for transmission. A workpiece fixing table (17) is provided on the top of the base (1) below the crossbeam (10). The workpiece fixing table (17) is threadedly connected to the second ball screw (16). A third servo motor (18) is fixedly connected to one end of the crossbeam (10). A third ball screw (19) is rotatably connected to the inside of the crossbeam (10). The moving seat (11) is threadedly connected to the third ball screw (19).

3. The laser welding machine drive device according to claim 2, characterized in that: The top two sides of the base (1) are fixedly connected to the bottom of the workpiece fixing table (17) with first slide rails (20). The workpiece fixing table (17) is connected to the first slide rails (20). The outer walls of the crossbeam (10) are fixedly connected to the second slide rails (21). The movable seat (11) is connected to the second slide rails (21).

4. The laser welding machine drive device according to claim 2, characterized in that: A first laser ranging sensor (22) is fixedly connected to the top of the base (1) on the side away from the second servo motor (15). The first laser ranging sensor (22) is correspondingly set to the workpiece fixing table (17). A second laser ranging sensor (23) is fixedly connected to the top of the end of the crossbeam (10) away from the third servo motor (18). The second laser ranging sensor (23) is correspondingly set to the moving seat (11).

5. The laser welding machine drive device according to claim 1, characterized in that: A brake (24) is provided on one side of the outer wall of the mover (13), and the brake (24) is connected to the outer wall of the linear motor (12).

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