Welding device for railway vehicle production

Abstract

The invention relates to the technical field of railway vehicle production and machining equipment, in particular to a welding device for railway vehicle production, a first rail and a second rail provide a stable large-range moving reference covering a whole workpiece for a whole welding system, a collaborative welding operation mode is adopted, and the welding efficiency is improved. Namely, the welding unit is driven by the driving mechanism to move on the first track in a large range and convey the welding gun head in place, meanwhile, the lifting adjusting mechanism is combined for multi-degree-of-freedom adjustment, accurate alignment is achieved, and therefore accurate welding seam tracking and posture keeping are guaranteed. Low-cost automatic welding is achieved by designing the suspension type walking track and matching with the multi-degree-of-freedom adjusting tractor to drive the welding unit, the multi-degree-of-freedom adjusting tractor has the universality for production of various railway vehicle ceilings and complex curved surface workpieces, the operation difficulty of personnel is greatly lowered, the labor operation intensity is greatly lowered, and the production efficiency is improved. The finished product quality and the production efficiency are effectively improved.

Description

Technical Field

[0001] This invention relates to the field of rail vehicle manufacturing and processing equipment technology, and in particular to a welding device for rail vehicle manufacturing. Background Technology

[0002] The roof and other large structural components of urban rail vehicles have a large number of long welds, a large amount of welding, and high requirements for weld quality. Currently, the automatic welding method using flexible connecting rails is commonly used for welding. The flexible rails are laid on the surface of the workpiece, and an automatic traction vehicle travels along the laid rails to pull the welding equipment to complete the welding.

[0003] However, the automatic welding trolley solution with flexible connecting rails has many limitations in actual production. Specifically, since the rails only cover the workpiece surface by their own weight, their application scenarios are limited, especially for side and top welding processes of non-planar workpieces such as curved roofs. In addition, the rails need to be re-laid before each production run and disassembled after production. This not only affects production efficiency but also makes it difficult to ensure that the gap between the rails and the workpieces meets the welding requirements of the trolley each time, resulting in unreliable weld quality. Secondary grinding and repair welding are required, which further affects product quality and production efficiency.

[0004] Therefore, there is an urgent need for a welding device for rail vehicle production to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a welding device for rail vehicle production that can improve the versatility, flexibility and efficiency of welding, and reduce the difficulty of operation for operators.

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

[0007] This invention provides a welding apparatus for rail vehicle production, comprising:

[0008] support

[0009] The first track and the second track are fixedly connected to opposite sides of the bracket;

[0010] The welding unit includes a mounting platform, a wire guide mechanism, a welding wire spool, and a welding gun head. The mounting platform is slidably disposed on the first track. The wire guide mechanism and the welding wire spool are both fixedly disposed on the mounting platform. The wire guide mechanism can transport the welding wire in the welding wire spool to the welding gun head.

[0011] A drive mechanism is disposed on the second track and is tractively connected to the mounting platform, and is capable of moving the mounting platform;

[0012] A lifting and adjusting mechanism is installed on the driving mechanism, and the lifting and adjusting mechanism can drive the welding gun head to move in the vertical direction.

[0013] As a preferred technical solution of the welding device for the production of the aforementioned rail vehicles, the lifting and adjusting mechanism includes a lifting assembly, which includes a first fixed frame, a fixed plate, a first fixed block, a second fixed block, a screw, a fixed platform, a mounting base, and a first adjusting rod. The first fixed frame is fixedly installed on the driving mechanism, the fixed plate is fixedly connected to one side of the first fixed frame, the fixed platform is slidably disposed on the fixed plate in the vertical direction, and the first fixed block and the second fixed block are respectively fixedly disposed at both ends of the fixed plate in the vertical direction. The two ends of the screw are respectively rotatably connected to the first fixed block and the second fixed block, the fixed platform is threadedly connected to the screw, the mounting base is fixedly connected to the fixed platform, and the first adjusting rod is fixedly connected to the mounting base.

[0014] As a preferred technical solution of the welding device for the production of the above-mentioned rail vehicles, the lifting assembly further includes two guide blocks, both of which are fixedly connected to the fixed platform. Two slide rails are provided at intervals on the fixed plate. The slide rails extend vertically. The two guide blocks are arranged in one-to-one correspondence with the two slide rails, and the guide blocks are slidably disposed on the slide rails.

[0015] As a preferred technical solution for the welding device used in the production of the aforementioned rail vehicles, the lifting and adjusting mechanism further includes a fine-tuning component. The fine-tuning component includes a first fixed ring, a first tightening screw, a second fixed ring, a second tightening screw, a second adjusting rod, a first adjusting platform, a first sliding screw, a second sliding screw, a moving block, a second adjusting platform, a connecting seat, and a mounting fixture. The first fixed ring is slidably sleeved on the outer peripheral wall of the first adjusting rod. The first tightening screw is threadedly connected to the first fixed ring and abuts against the first adjusting rod. The second fixed ring is fixedly connected to the first fixed ring and slidably sleeved on the outer peripheral wall of the second adjusting rod. The second tightening screw is threadedly connected to the first adjusting platform, a first sliding screw, a second sliding screw, a moving block, a second adjusting platform, a connecting seat, and a mounting fixture. The second fixing ring abuts against the second adjusting rod. One end of the second adjusting rod is fixedly connected to the first adjusting platform. The first sliding screw is rotatably disposed within the first adjusting platform. The moving block is threadedly connected to the first sliding screw and slides with the inner cavity of the first adjusting platform. One end of the moving block extends to the outside of the first adjusting platform and is fixedly connected to the second adjusting platform. The second sliding screw is rotatably disposed within the second adjusting platform. The connecting seat is threadedly connected to the second sliding screw and slides with the inner cavity of the second adjusting platform. The mounting clamp is fixedly connected to the connecting seat and is used to mount the welding gun head.

[0016] As a preferred technical solution for the welding device used in the production of the aforementioned rail vehicles, one end of the first sliding screw extends to the outside of the first adjusting table, and one end of the second sliding screw extends to the outside of the second adjusting table.

[0017] As a preferred technical solution of the welding device for the production of the above-mentioned rail vehicles, the first track includes two first guide rails and a plurality of first vertical arms. The two first guide rails are arranged at intervals along the vertical direction, and the plurality of first vertical arms are arranged at intervals along the length direction of the first guide rails. The first vertical arms are fixedly connected between the two first guide rails. The second track includes two second guide rails and a plurality of second vertical arms. The two second guide rails are arranged at intervals along the vertical direction, and the plurality of second vertical arms are arranged at intervals along the length direction of the second guide rails. The second vertical arms are fixedly connected between the two second guide rails.

[0018] As a preferred technical solution of the welding device for the production of the aforementioned rail vehicles, the driving mechanism includes a driving platform and two driving components. The two driving components are respectively disposed on both sides of the driving platform. Each driving component includes a driving box, a dual-axis motor, and two driving wheels. The driving box is fixedly connected to the driving platform. The dual-axis motor is disposed inside the driving box and has a first output end and a second output end. Both the first output end and the second output end extend to the outside of the driving box and are respectively fixedly connected to the two driving wheels. The two driving wheels respectively roll in contact with the two second guide rails.

[0019] As a preferred technical solution of the welding device for the production of the above-mentioned rail vehicles, the top and bottom of the drive platform are fixedly connected to a connecting platform, and the two sides of the connecting platform are fixedly connected to a mounting frame. Each mounting frame is rotatably connected to a first guide wheel, and each first guide wheel is in rolling contact with the corresponding second guide rail.

[0020] As a preferred technical solution of the above-mentioned welding device for rail vehicle production, the welding device for rail vehicle production further includes a sliding joint assembly and a connecting arm. The sliding joint assembly is slidably disposed on the first track, the mounting platform is fixedly disposed on the sliding joint assembly, and the two ends of the connecting arm are respectively fixedly connected to the sliding joint assembly and the driving mechanism.

[0021] As a preferred technical solution of the welding device for rail vehicle production, the welding device for rail vehicle production further includes two mounting components. The number of brackets is two. The two mounting components are arranged in a one-to-one correspondence with the two brackets, and the mounting components are fixedly connected to the brackets. Each bracket has a connecting frame fixedly connected to its opposite sides. The two connecting frames are respectively fixedly connected to the first track and the second track.

[0022] The beneficial effects of this invention are as follows:

[0023] This invention provides a welding device for rail vehicle production. The welding device includes: a support, a first track, a second track, a welding unit, a drive mechanism, and a lifting and adjusting mechanism. The first track and the second track are fixedly connected to opposite sides of the support. The welding unit includes a mounting platform, a wire guide mechanism, a welding wire spool, and a welding gun head. The mounting platform is slidably disposed on the first track. The wire guide mechanism and the welding wire spool are both fixedly disposed on the mounting platform. The wire guide mechanism can transport the welding wire in the welding wire spool to the welding gun head. The drive mechanism is disposed on the second track and is drivenly connected to the mounting platform, and can drive the mounting platform to move. The lifting and adjusting mechanism is mounted on the drive mechanism and can drive the welding gun head to move in the vertical direction. This setup provides the first and second tracks with a stable, wide-range movement reference covering the entire workpiece for the entire welding system. Employing a collaborative welding operation mode, the welding unit is moved across the first track by a drive mechanism, delivering the welding torch to its designated position. Simultaneously, a lifting and adjusting mechanism allows for multi-degree-of-freedom adjustment, achieving precise alignment and ensuring accurate weld tracking and posture maintenance. The design of a suspended traveling track, coupled with a multi-degree-of-freedom adjustable traction vehicle, enables low-cost automated welding. Furthermore, the multi-degree-of-freedom adjustment makes it versatile for producing roofs for various rail vehicles, significantly reducing operator difficulty and labor intensity, and effectively improving finished product quality and production efficiency. Attached Figure Description

[0024] Figure 1 A schematic diagram of the welding device for rail vehicle production provided by the present invention;

[0025] Figure 2 A partial structural diagram of the welding device for rail vehicle production provided by the present invention. Figure 1 ;

[0026] Figure 3 A partial structural diagram of the welding device for rail vehicle production provided by the present invention. Figure 2 ;

[0027] Figure 4 This is a schematic diagram of the lifting assembly provided by the present invention;

[0028] Figure 5 A partial structural diagram of the welding device for rail vehicle production provided by the present invention. Figure 3 ;

[0029] Figure 6 Schematic diagram of the structure of the fine-tuning component provided by the present invention Figure 1 ;

[0030] Figure 7 Schematic diagram of the structure of the fine-tuning component provided by the present invention Figure 2 .

[0031] in:

[0032] 1. Bracket; 2. Connecting frame; 3. First guide rail; 4. Second guide rail; 5. Drive platform; 6. Drive box; 7. Dual-axis motor; 8. Drive wheel; 9. First fixed frame; 10. First fixed block; 11. Second fixed block; 12. Screw; 13. Fixed platform; 14. Slide rail; 15. Guide block; 16. Mounting base; 17. First adjusting rod; 18. Fixed plate; 19. Connecting platform; 20. Mounting frame; 21. First guide wheel; 22. Mounting clamp; 23. Connecting arm; 24. Mounting platform; 25. Second fixed frame; 26. Second guide wheel; 27. Connecting block; 28. Third fixed frame; 29. ​​Third guide wheel;

[0033] 30. Welding wire spool; 31. Wire guide mechanism; 32. Mounting component; 33. First vertical arm; 34. Second vertical arm; 35. Knob; 36. Fourth fixing bracket; 37. Fourth guide wheel; 38. First fixing ring; 39. First tightening screw; 40. Second fixing ring; 41. Second tightening screw; 42. Second adjusting rod; 43. First adjusting platform; 44. First sliding screw; 45. Moving block; 46. Second adjusting platform; 47. Second sliding screw; 48. Connecting seat. Detailed Implementation

[0034] Embodiments of the present invention are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0035] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0036] Unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and connections within two components or interactions between two components. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0037] Unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of a second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0039] like Figures 1 to 7As shown, this embodiment provides a welding device for rail vehicle production. The welding device for rail vehicle production includes: a support 1, a first track, a second track, a welding unit, a drive mechanism, and a lifting and adjusting mechanism. The first track and the second track are fixedly connected to opposite sides of the support 1. The welding unit includes a mounting platform 24, a wire guide mechanism 31, a welding wire spool 30, and a welding gun head. The mounting platform 24 is slidably disposed on the first track. The wire guide mechanism 31 and the welding wire spool 30 are both fixedly disposed on the mounting platform 24. The wire guide mechanism 31 can transport the welding wire in the welding wire spool 30 to the welding gun head. The drive mechanism is disposed on the second track and is connected to the mounting platform 24, and can drive the mounting platform 24 to move. The lifting and adjusting mechanism is disposed on the drive mechanism, and can drive the welding gun head to move in the vertical direction. This setup provides the first and second tracks with a stable, wide-range movement reference covering the entire workpiece for the entire welding system. Employing a collaborative welding operation mode, the welding unit is moved across the first track by a drive mechanism, delivering the welding torch to its designated position. Simultaneously, a lifting and adjusting mechanism allows for multi-degree-of-freedom adjustment, achieving precise alignment and ensuring accurate weld tracking and posture maintenance. The design of a suspended traveling track, coupled with a multi-degree-of-freedom adjustable traction vehicle, enables low-cost automated welding. Furthermore, the multi-degree-of-freedom adjustment makes it versatile for producing roofs for various rail vehicles, significantly reducing operator difficulty and labor intensity, and effectively improving finished product quality and production efficiency.

[0040] Specifically, this embodiment provides the following technical solution by way of example: The lifting adjustment mechanism includes a lifting assembly, which includes a first fixed frame 9, a fixed plate 18, a first fixed block 10, a second fixed block 11, a screw 12, a fixed platform 13, a mounting base 16, a first adjusting rod 17, and a knob 35. The first fixed frame 9 is fixedly installed on the drive mechanism. The fixed plate 18 is fixedly connected to one side of the first fixed frame 9. The fixed platform 13 is slidably disposed on the fixed plate 18 in the vertical direction. The first fixed block 10 and the second fixed block 11 are respectively fixedly disposed at both ends of the fixed plate 18 in the vertical direction. The two ends of the screw 12 are rotatably connected to the first fixed block 10 and the second fixed block 11 through bearings. The knob 35 is fixedly disposed at the top end of the screw 12. The fixed platform 13 is threadedly connected to the screw 12. The mounting base 16 is fixedly connected to the fixed platform 13. The first adjusting rod 17 is fixedly connected to the mounting base 16. With this setup, using the screw drive principle, the operator can manually rotate the knob 35 mounted on the top of the screw 12. The rotation of the knob 35 drives the screw 12 to rotate synchronously. The fixed platform 13, which is engaged with the screw 12 through a thread, cannot rotate with the screw 12 under the constraint of the fixed plate 18. Instead, it can only convert the rotational motion of the screw 12 into a precise linear motion in the vertical direction along the fixed plate 18. When the fixed platform 13 moves up or down, it drives the mounting base 16 fixed on it and the first adjusting rod 17 mounted on the mounting base 16 to rise and fall together, achieving a lifting function with high rigidity, high precision, simple operation, and controllable cost.

[0041] Optionally, in order to improve the stability and reliability of the lifting and sliding adjustment, the lifting assembly also includes two guide blocks 15. Both guide blocks 15 are fixedly connected to the fixed platform 13. Two slide rails 14 are provided on the fixed plate 18 at intervals. The slide rails 14 extend in the vertical direction. The two guide blocks 15 are arranged in a one-to-one correspondence with the two slide rails 14, and the guide blocks 15 are slidably arranged on the slide rails 14.

[0042] In this embodiment, the lifting adjustment mechanism further includes a fine-tuning component, which includes a first fixing ring 38, a first tightening screw 39, a second fixing ring 40, a second tightening screw 41, a second adjusting rod 42, a first adjusting platform 43, a first sliding screw 44, a second sliding screw 47, a moving block 45, a second adjusting platform 46, a connecting seat 48, and a mounting clamp 22. The first fixing ring 38 is slidably sleeved on the outer peripheral wall of the first adjusting rod 17. The first tightening screw 39 is threadedly connected to the first fixing ring 38 and abuts against the first adjusting rod 17. The second fixing ring 40 is fixedly connected to the first fixing ring 38 and slidably sleeved on the outer peripheral wall of the second adjusting rod 42. The second tightening screw 41 is threadedly connected to the first adjusting platform 43, a first sliding screw 44, a second sliding screw 47, a moving block 45, a second adjusting platform 46, a connecting seat 48, and a mounting clamp 22. The second fixing ring 40 abuts against the second adjusting rod 42. One end of the second adjusting rod 42 is fixedly connected to the first adjusting platform 43. The first sliding screw 44 is rotatably disposed inside the first adjusting platform 43. The moving block 45 is threadedly connected to the first sliding screw 44 and slides with the inner cavity of the first adjusting platform 43. One end of the moving block 45 extends to the outside of the first adjusting platform 43 and is fixedly connected to the second adjusting platform 46. The second sliding screw 47 is rotatably disposed inside the second adjusting platform 46. The connecting seat 48 is threadedly connected to the second sliding screw 47 and slides with the inner cavity of the second adjusting platform 46. The mounting clamp 22 is fixedly connected to the connecting seat 48 and is used to install the welding gun head.

[0043] Optionally, one end of the first sliding screw 44 extends to the outside of the first adjusting table 43, and one end of the second sliding screw 47 extends to the outside of the second adjusting table 46. With this configuration, the outer ends of the first sliding screw 44 and the second sliding screw 47 can serve as operating ends, allowing operators to easily make fine adjustments by turning them.

[0044] Optionally, the first track includes two first guide rails 3 and several first vertical arms 33. The two first guide rails 3 are arranged at intervals along the vertical direction, and the several first vertical arms 33 are arranged at intervals along the length direction of the first guide rails 3. The first vertical arms 33 are fixedly connected between the two first guide rails 3. The second track includes two second guide rails 4 and several second vertical arms 34. The two second guide rails 4 are arranged at intervals along the vertical direction, and the several second vertical arms 34 are arranged at intervals along the length direction of the second guide rails 4. The second vertical arms 34 are fixedly connected between the two second guide rails 4. With this configuration, by connecting the two guide rails with vertical arms to form a frame, the goal of maximizing rigidity and stability with minimal weight and cost is achieved. This lays a solid foundation for a low-cost, high-precision, and high-reliability automated system.

[0045] Optionally, the drive mechanism includes a drive platform 5 and two drive components. The drive platform 5 is fixedly connected to the first fixed frame 9. The two drive components are respectively disposed on both sides of the drive platform 5. Each drive component includes a drive housing 6, a dual-axis motor 7, and two drive wheels 8. The drive housing 6 is fixedly connected to the drive platform 5. The dual-axis motor 7 is disposed inside the drive housing 6 and has a first output end and a second output end. Both the first output end and the second output end extend to the outside of the drive housing 6 and are respectively fixedly connected to the two drive wheels 8. The two drive wheels 8 respectively roll in contact with the two second guide rails 4.

[0046] Optionally, in order to further improve the smoothness of the sliding of the drive mechanism, a connecting platform 19 is fixedly connected to the top and bottom of the drive platform 5, and a mounting bracket 20 is fixedly connected to both sides of the connecting platform 19. A first guide wheel 21 is rotatably connected inside each mounting bracket 20, and each first guide wheel 21 is in rolling contact with the corresponding second guide rail 4.

[0047] Optionally, the welding device for rail vehicle production also includes a sliding joint assembly and a connecting arm 23. The sliding joint assembly is slidably disposed on the first track, the mounting platform 24 is fixedly disposed on the sliding joint assembly, and the two ends of the connecting arm 23 are respectively fixedly connected to the sliding joint assembly and the drive mechanism.

[0048] Furthermore, a second fixing frame 25 is fixedly connected to the bottom of the mounting platform 24 and to both sides of one of the first guide rails 3. A second guide wheel 26 is rotatably connected inside the second fixing frame 25. The outer side of the second guide wheel 26 is in contact with the surface of the first guide rail 3. Two connecting blocks 27 are fixedly connected to the bottom of the mounting platform 24. A third fixing frame 28 is fixedly connected above the bottom of the connecting blocks 27. A third guide wheel 29 is rotatably connected inside the third fixing frame 28. The outer side of the third guide wheel 29 is in contact with the surface of the first guide rail 3. Several fourth fixing frames 36 are fixedly connected to the bottom of the mounting platform 24 and above one of the first guide rails 3. A fourth guide wheel 37 is rotatably connected inside the fourth fixing frame 36. The outer side of the fourth guide wheel 37 is in contact with the top of the first guide rail 3.

[0049] Optionally, in order to improve the connection stability and reliability of the first track and the second track, and to facilitate disassembly and assembly, the welding device for rail vehicle production also includes two mounting parts 32. There are two brackets 1. The two mounting parts 32 are set one-to-one with the two brackets 1, and the mounting parts 32 are fixedly connected to the brackets 1. Each bracket 1 has a connecting frame 2 fixedly connected to its opposite sides. The two connecting frames 2 are fixedly connected to the first track and the second track respectively.

[0050] The working principle of the welding device for rail vehicle production provided in this embodiment is explained as follows: In use, the welding device for rail vehicle production is installed on the side of the car body. The dual-axis motor 7 drives the drive wheel 8 to rotate, which in turn drives the drive platform 5 to move the first fixed frame 9, the fixed plate 18, the screw 12, and the first adjusting rod 17. This, in turn, moves the welding gun head mounted on the fine-tuning component. By rotating the knob 35, the knob 35 drives the screw 12 to rotate, which in turn drives the fixed platform 13 to move the mounting base 16, the first adjusting rod 17, and the welding gun head, thus adjusting the height of the welding gun head. When the fixed platform 13 moves, it causes the guide block 15 to slide on the outside of the slide rail 14. The position of the welding gun head can be fine-tuned by the first adjusting rod 17. When the drive platform 5 and the dual-axis motor 7 move, the dual-axis motor 7 drives the connecting arm 23, the mounting platform 24, the welding wire spool 30, and the wire guide mechanism 31 to move. As the mounting platform 23 moves, the welding gun head moves with the guide block 15. The movement of 4 causes the mounting platform 24 to move along the surface of the first guide rail 3, driving the second guide wheel 26, the third guide wheel 29, and the fourth guide wheel 37. The welding wire inside the welding wire spool 30 is fed into the welding gun head through the wire guiding mechanism 31, thus feeding the welding gun head with wire. By loosening one end of the first tightening screw 39, the first fixing ring 38 is moved, and then the first tightening screw 39 is tightened to limit and fix the position of the first fixing ring 38. Then the operator turns the second tightening screw 41 to loosen it, then moves the second adjusting rod 42, and then tightens the second tightening screw 41 to limit and fix the position of the second adjusting rod 42. Then the operator rotates the first sliding screw 44, causing the first sliding screw 44 to drive the moving block 45 and the second adjusting platform 46 to move, thus moving the second adjusting platform 46. By rotating the second sliding screw 47, the second sliding screw 47 drives the connecting seat 48 and the welding gun head to move for fine adjustment.

[0051] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A welding apparatus for rail vehicle manufacturing, characterized in that, include: Frame (1), The first track and the second track are fixedly connected to opposite sides of the bracket (1); The welding unit includes a mounting platform (24), a wire guide mechanism (31), a welding wire spool (30), and a welding gun head. The mounting platform (24) is slidably mounted on the first track. The wire guide mechanism (31) and the welding wire spool (30) are both fixedly mounted on the mounting platform (24). The wire guide mechanism (31) can transport the welding wire in the welding wire spool (30) to the welding gun head. A drive mechanism is disposed on the second track and is connected to the mounting platform (24) in a transmission manner, and is capable of driving the mounting platform (24) to move; A lifting and adjusting mechanism is installed on the driving mechanism, and the lifting and adjusting mechanism can drive the welding gun head to move in the vertical direction.

2. The welding apparatus for rail vehicle production according to claim 1, characterized in that, The lifting adjustment mechanism includes a lifting assembly, which includes a first fixed frame (9), a first fixed block (10), a second fixed block (11), a screw (12), a fixed platform (13), a mounting base (16), a first adjusting rod (17), and a fixed plate (18). The first fixed frame (9) is fixedly installed on the driving mechanism. The fixed plate (18) is fixedly connected to one side of the first fixed frame (9). The fixed platform (13) is slidably disposed on the fixed plate (18) in the vertical direction. The first fixed block (10) and the second fixed block (11) are respectively fixedly disposed at both ends of the fixed plate (18) in the vertical direction. The two ends of the screw (12) are respectively rotatably connected to the first fixed block (10) and the second fixed block (11). The fixed platform (13) is threadedly connected to the screw (12). The mounting base (16) is fixedly connected to the fixed platform (13). The first adjusting rod (17) is fixedly connected to the mounting base (16).

3. The welding apparatus for rail vehicle production according to claim 2, characterized in that, The lifting assembly also includes two guide blocks (15), both of which are fixedly connected to the fixed platform (13). The fixed plate (18) is provided with two slide rails (14) at intervals. The slide rails (14) extend vertically. The two guide blocks (15) are arranged in a one-to-one correspondence with the two slide rails (14), and the guide blocks (15) are slidably disposed on the slide rails (14).

4. The welding apparatus for rail vehicle production according to claim 2, characterized in that, The lifting adjustment mechanism further includes a fine-tuning component, which includes a first fixing ring (38), a first tightening screw (39), a second fixing ring (40), a second tightening screw (41), a second adjusting rod (42), a first adjusting platform (43), a first sliding screw (44), a second sliding screw (47), a moving block (45), a second adjusting platform (46), a connecting seat (48), and a mounting clamp (22). The first fixing ring (38) is slidably sleeved on the outer peripheral wall of the first adjusting rod (17). The first tightening screw (39) is threadedly connected to the first fixing ring (38) and abuts against the first adjusting rod (17). The second fixing ring (40) is fixedly connected to the first fixing ring (38). The second fixing ring (40) is slidably sleeved on the outer peripheral wall of the second adjusting rod (42). The second tightening screw (41) is threadedly connected to the second fixing ring (40) and abuts against the second adjusting rod (42). The second adjusting rod (42) is connected to the second adjusting rod (42), one end of which is fixedly connected to the first adjusting table (43). The first sliding screw (44) is rotatably disposed in the first adjusting table (43). The moving block (45) is threadedly connected to the first sliding screw (44) and slides with the inner cavity of the first adjusting table (43). One end of the moving block (45) extends to the outside of the first adjusting table (43) and is fixedly connected to the second adjusting table (46). The second sliding screw (47) is rotatably disposed in the second adjusting table (46). The connecting seat (48) is threadedly connected to the second sliding screw (47) and slides with the inner cavity of the second adjusting table (46). The mounting fixture (22) is fixedly connected to the connecting seat (48) and is used to install the welding gun head.

5. The welding apparatus for rail vehicle production according to claim 4, characterized in that, One end of the first sliding screw (44) extends to the outside of the first adjusting table (43), and one end of the second sliding screw (47) extends to the outside of the second adjusting table (46).

6. The welding apparatus for rail vehicle production according to any one of claims 1-5, characterized in that, The first track includes two first guide rails (3) and a plurality of first vertical arms (33). The two first guide rails (3) are arranged at intervals along the vertical direction, and the plurality of first vertical arms (33) are arranged at intervals along the length direction of the first guide rails (3). The first vertical arms (33) are fixedly connected between the two first guide rails (3). The second track includes two second guide rails (4) and a plurality of second vertical arms (34). The two second guide rails (4) are arranged at intervals along the vertical direction, and the plurality of second vertical arms (34) are arranged at intervals along the length direction of the second guide rails (4). The second vertical arms (34) are fixedly connected between the two second guide rails (4).

7. The welding apparatus for rail vehicle production according to claim 6, characterized in that, The driving mechanism includes a driving platform (5) and two driving components. The two driving components are respectively disposed on both sides of the driving platform (5). Each driving component includes a driving box (6), a dual-axis motor (7), and two driving wheels (8). The driving box (6) is fixedly connected to the driving platform (5). The dual-axis motor (7) is disposed inside the driving box (6) and has a first output end and a second output end. The first output end and the second output end both extend to the outside of the driving box (6) and are respectively fixedly connected to the two driving wheels (8). The two driving wheels (8) respectively roll in contact with the two second guide rails (4).

8. The welding apparatus for rail vehicle production according to claim 7, characterized in that, The top and bottom of the drive platform (5) are fixedly connected to a connecting platform (19), and the two sides of the connecting platform (19) are fixedly connected to a mounting bracket (20). Each mounting bracket (20) is rotatably connected to a first guide wheel (21), and each first guide wheel (21) is in rolling contact with the corresponding second guide rail (4).

9. The welding apparatus for rail vehicle production according to any one of claims 1-5, characterized in that, The welding device for producing rail vehicles also includes a sliding assembly and a connecting arm (23). The sliding assembly is slidably disposed on the first track, the mounting platform (24) is fixedly disposed on the sliding assembly, and the two ends of the connecting arm (23) are respectively fixedly connected to the sliding assembly and the driving mechanism.

10. The welding apparatus for rail vehicle production according to any one of claims 1-5, characterized in that, The welding device for rail vehicle production also includes two mounting parts (32). There are two brackets (1). The two mounting parts (32) are arranged in a one-to-one correspondence with the two brackets (1). The mounting parts (32) are fixedly connected to the brackets (1). Each bracket (1) has a connecting frame (2) fixedly connected to its opposite sides. The two connecting frames (2) are fixedly connected to the first track and the second track, respectively.

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