A frame welding device with automatic welding slag cleaning structure

Abstract

The present invention relates to the technical field of vehicle frame welding equipment, and discloses a vehicle frame welding device with an automatic welding slag cleaning structure, comprising a workbench, the workbench being funnel-shaped, a sealing block fixedly mounted at the center axis of the bottom of the workbench, an operating platform provided on the top of the workbench, two sets of vehicle frame mounting assemblies symmetrically mounted on the operating platform, each of which is equipped with a vehicle frame body, a support column mounted on the top of the sealing block, a sandblasting machine fixedly mounted on the top of the support column, the sandblasting machine being automatically controlled by a programmable logic controller (PLC), a motor mounted at the bottom of the sealing block, and a drive shaft mounted at the output end of the motor. The present invention, through the funnel-shaped arrangement of the workbench, can collect flying sparks, preventing welding slag from scattering on the ground and increasing the workload of workers, and when the motor drives the operating platform to flip, the welding slag adsorbed on the inner wall of the workbench can be automatically cleaned, thereby preventing the welding slag from accumulating on the inner wall of the workbench.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle frame welding equipment, in particular to a vehicle frame welding device with an automatic welding slag cleaning structure. Background Art

[0002] Electric bicycles are a green and environmentally friendly means of transportation that can be used as an environmentally friendly means of transportation for commuting and traveling. When producing the frame of an electric bicycle, in order to increase the strength of the main beam, bent pipe reinforcement plates and diagonal foot support reinforcement plates are often welded on the main beam. In addition, seat barrel mounting seats and shock absorber mounting bolts are also welded at the ends of the main beam.

[0003] In the existing technology, when welding electric bicycle frames, a large amount of splashing welding slag may be generated. The temperature of this welding slag is very high. If no protection is taken, the splashing welding slag may cause harm to the workers. The splashing welding slag will also be scattered on the welding table and the surrounding ground. Workers will need to clean it up later, which undoubtedly increases the workload of the workers. Summary of the Invention

[0004] The object of the present invention is to provide a frame welding device with an automatic welding slag cleaning structure to solve the problems raised in the above background technology.

[0005] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a frame welding device with an automatic welding slag cleaning structure, comprising a workbench, the workbench being funnel-shaped, two pairs of supporting legs being symmetrically fixedly mounted on the side walls of the workbench, a sealing block being fixedly mounted at the central axis of the bottom of the workbench, a waste opening being fixedly connected to the side walls of the bottom of the workbench, an operating platform being provided at the central axis of the top of the workbench, two sets of frame mounting assemblies being symmetrically fixedly mounted on the operating platform, a frame body being fixedly mounted on both sets of the frame mounting assemblies, and further comprising:

[0007] The top of the sealing block is provided with an inclined surface, and a vertical support column is fixedly installed on the top of the sealing block. The end of the support column away from the sealing block extends to the top of the workbench. A sandblasting machine is fixedly installed on the top of the support column, and the sandblasting machine is automatically controlled by a PLC;

[0008] The sealing block and the supporting column are both provided with a central hole at their central axis;

[0009] A motor is fixedly mounted on the bottom of the sealing block, a driving shaft is fixedly mounted on the output end of the motor, and the driving shaft is rotatably mounted inside a central hole in the middle of the sealing block and the supporting column.

[0010] Furthermore, the inclination angle of the inclined surface is the same as the inclination angle of the waste port, and the inclined surface is smoothly connected to the bottom inner wall of the waste port. A number of mounting grooves are evenly opened on the top of the side wall of the workbench, and support plates are fixedly installed inside the mounting grooves. One end of the support plate extends toward the central axis of the workbench, and a support table is fixedly installed on several of the support plates.

[0011] Furthermore, a mounting ring is fixedly installed on the top of the workbench, and a protective plate is fixedly installed on the top of the mounting ring. The protective plate is semicircular, and a notch is provided in the center of the top of the side wall of the protective plate.

[0012] Furthermore, the support platform is annular, and a contact surface is provided on both the inner side wall and the outer side wall of the support platform, and a gap is left between the support platform and the inner wall of the mounting ring.

[0013] Furthermore, two baffles are symmetrically fixedly installed on the operating platform, and the two baffles are located between the two groups of frame mounting components. A gap is set between the two baffles. A connecting column is fixedly connected to the center of the bottom of the operating platform. The operating platform and the top of the connecting column are jointly provided with a center hole. A cylindrical groove is provided at the bottom of the connecting column, and a number of tooth grooves are evenly provided on the inner wall of the cylindrical groove.

[0014] Furthermore, a plurality of mounting seats are evenly fixedly connected to the bottom of the side wall of the connecting column, a cross bar is fixedly installed on the mounting seats, a plurality of bristles are fixedly connected to the side wall of the cross bar, and the bottom of the bristles contacts the inner wall of the workbench.

[0015] Furthermore, a mounting block is fixedly connected to the bottom of both ends of the operating platform, a trapezoidal groove is provided in the center of the bottom of the mounting block, two roller mounting grooves are symmetrically provided on the side walls of the trapezoidal groove, and a roller body is rotatably installed on the inner wall of the roller mounting groove, and the two roller bodies respectively support the two contact surfaces on the platform to fit together.

[0016] Furthermore, the top of the support column is arranged inside the connecting column and the gap, the middle of the support column is fixedly connected to a cylindrical support seat, the top of the cylindrical support seat is provided with a bearing, the bearing is fixedly mounted on the support column, and the bearing is fixedly mounted inside the cylindrical groove.

[0017] Furthermore, a cavity is provided in the middle of the cylindrical support seat, an opening is provided on one side of the cylindrical support seat, a transmission gear is rotatably installed inside the opening, and the transmission gear is connected to the tooth groove transmission.

[0018] Furthermore, a driving gear is fixedly mounted on the top of the driving shaft, the driving gear is arranged inside the cavity, and the driving gear is in transmission connection with the transmission gear.

[0019] In addition, when in use, the frame body is placed on the frame mounting assembly on the side away from the protective plate, fixed, and then the motor is started. The motor will drive the drive shaft and the drive gear to rotate, and the drive gear is connected to the transmission gear, and the transmission gear is connected to the tooth groove, which can drive the operating platform to rotate synchronously, so that the operating platform can be flipped, and the frame mounting assembly with the frame body installed is moved to the inside of the protective plate. The frame can then be welded through the gap through the manipulator. The mounting ring and the guard plate on the top of the workbench are semicircular and have gaps. While not affecting the entry and exit and operation of the frame body, they can protect against spatter during welding and cleaning, protect the safety of operators, and prevent welding slag from splashing to the outside of the device to cause pollution. In addition, during the welding process, the sandblasting machine is controlled by the PLC and can follow the welding action of the manipulator to clean the welding slag on the cooled weld surface, avoiding the need to manually clean the welding slag after the frame welding is completed.

[0020] The protection plate and two baffles can prevent sparks from flying when welding the frame, thus avoiding the possibility of sparks flying and causing harm to workers. In addition, the funnel-shaped setting of the workbench can collect sparks that are blocked by the protection plate and baffles, thus preventing sparks from flying and scattering on the ground, which increases the workload of workers.

[0021] The baffle is set to separate the frame mounting assembly for welding from the frame mounting assembly for mounting the frame, which can prevent the high brightness generated during welding from damaging the eyes of the workers and increase the practicality of the device;

[0022] In addition, when the motor is working, the operating platform rotates, which will drive the cross bar and the brush bristles at the bottom of the cross bar to rotate synchronously, thereby cleaning the welding slag adsorbed on the inner wall of the workbench, avoiding the accumulation of welding slag on the inner wall of the workbench. The welding slag is finally discharged through the waste port for easy collection.

[0023] The present invention has the following beneficial effects:

[0024] (1) The two frame installation components of the present invention are respectively a welding cleaning station and an installation station. While the frame is being welded by the manipulator through the gap, the sandblasting machine is controlled by the PLC and can follow the welding action of the manipulator to clean the welding slag on the surface of the cooled weld, thereby avoiding the need to manually clean the welding slag after the frame welding is completed. In addition, while welding and cleaning, the frame to be welded can be clamped to the frame installation component of the installation station, which facilitates the smooth progress of the next frame welding work.

[0025] (2) The present invention can prevent sparks from flying when welding the frame by setting the protective plate and two baffles, thereby avoiding the situation where the flying welding slag may cause harm to the workers. In addition, the funnel-shaped setting of the workbench can collect sparks that are blocked by the protective plate and baffles, thereby preventing the welding slag from flying and scattering on the ground, thereby increasing the workload of the workers.

[0026] By setting the baffle, the frame mounting assembly for welding is separated from the frame mounting assembly for mounting the frame, which can prevent the high brightness generated during electric welding from damaging the eyes of the workers and increase the practicality of the device.

[0027] (3) When the motor of the present invention is working and the operating platform is turned over, the cross bar and the bristles at the bottom of the cross bar will be driven to rotate synchronously, thereby cleaning the welding slag adsorbed on the inner wall of the workbench, avoiding the accumulation of welding slag on the inner wall of the workbench. The welding slag is finally discharged through the waste port, which is convenient for its collection.

[0028] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the workbench structure of the present invention;

[0032] Figure 3 This is a schematic diagram of the top structure of the workbench of the present invention;

[0033] Figure 4 This is a schematic diagram of the operating platform structure of the present invention;

[0034] Figure 5 This is a schematic diagram of the bottom structure of the operating platform of the present invention;

[0035] Figure 6 Schematic diagram of the internal structure of the workbench of the present invention;

[0036] Figure 7 This is a schematic diagram of the transmission structure of the operating platform of the present invention;

[0037] Figure 8 For the present invention Figure 5 A partial enlarged schematic diagram of the middle A.

[0038] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0039] In the figure: 1. workbench; 101. support leg; 11. sealing block; 111. inclined surface; 12. waste opening; 13. mounting groove; 131. support plate; 14. support platform; 141. contact surface; 142. gap; 15. mounting ring; 151. protective plate; 152. notch; 2. operating platform; 21. frame mounting assembly; 22. frame body; 23. baffle; 231. gap; 24. connecting column; 241. center Center hole; 242, mounting seat; 243, cross bar; 244, bristles; 25, cylindrical groove; 251, tooth groove; 26, mounting block; 261, trapezoidal groove; 262, roller mounting groove; 27, roller body; 3, support column; 301, sandblasting machine; 31, cylindrical support seat; 311, bearing; 312, cavity; 313, opening; 32, transmission gear; 4, motor; 41, drive shaft; 411, drive gear. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] Example 1

[0042] See also Figures 1-8 As shown, the present invention is a frame welding device with an automatic welding slag cleaning structure, including a workbench 1, the workbench 1 is funnel-shaped, two pairs of support legs 101 are symmetrically fixedly installed on the side walls of the workbench 1, a sealing block 11 is fixedly installed at the bottom center axis of the workbench 1, a waste port 12 is fixedly connected to the bottom side wall of the workbench 1, an operating platform 2 is provided at the top center axis of the workbench 1, two groups of frame mounting components 21 are symmetrically fixedly installed on the operating platform 2, and a frame body 22 is fixedly installed on each of the two groups of frame mounting components 21. The two groups of frame mounting components 21 on the operating platform 2 can stably mount the frame body 22, facilitating welding and subsequent cleaning operations; and further comprising:

[0043] The top of the sealing block 11 is provided with an inclined surface 111, and the workbench 1 is funnel-shaped and has a waste opening 12 at the bottom. The inclined surface 111 on the top of the sealing block 11 has the same inclination angle as the waste opening 12 and is smoothly connected. The cleaned welding slag and other waste materials can slide into the waste opening 12 along the inclined surface 111 and be discharged, which is convenient for centralized collection and treatment of waste and keeps the working environment clean; a vertical supporting column 3 is fixedly installed on the top of the sealing block 11, and the end of the supporting column 3 away from the sealing block 11 extends to the top of the workbench 1, and a sandblasting machine 301 is fixedly installed on the top of the supporting column 3. The sandblasting machine 301 is automatically controlled by PLC and can automatically sandblast the frame body 22 after welding to clean the welding slag, thereby improving the cleaning efficiency and quality and reducing the intensity and uncertainty of manual operation. At the same time, the sandblasting machine 301 is installed on the top of the supporting column 3, and its position can be flexibly adjusted to comprehensively clean the frame;

[0044] The sealing block 11 and the support column 3 are both provided with a central hole at their central axis;

[0045] A motor 4 is fixedly mounted on the bottom of the sealing block 11 , a drive shaft 41 is fixedly mounted on the output end of the motor 4 , and the drive shaft 41 is rotatably mounted inside the center hole in the middle of the sealing block 11 and the supporting column 3 .

[0046] The inclination angle of the inclined surface 111 is the same as the inclination angle of the waste port 12, and the inclined surface 111 is smoothly connected to the bottom inner wall of the waste port 12. A number of mounting grooves 13 are evenly opened on the top of the side wall of the workbench 1. A support plate 131 is fixedly installed inside the mounting groove 13. One end of the support plate 131 extends toward the central axis of the workbench 1, and a support platform 14 is fixedly installed on several support plates 131.

[0047] A mounting ring 15 is fixedly installed on the top of the workbench 1, and a protective plate 151 is fixedly installed on the top of the mounting ring 15. The protective plate 151 is semicircular, and a notch 152 is provided in the center of the top of the side wall of the protective plate 151. The mounting ring 15 and the protective plate 151 on the top of the workbench 1 are semicircular and have a notch 152. While not affecting the entry and exit and operation of the frame body 22, they can protect against spatter during welding and cleaning, protect the safety of operators, and prevent welding slag from splashing to the outside of the device and causing pollution.

[0048] The support platform 14 is annular, and a contact surface 141 is provided on the inner side wall and the outer side wall of the support platform 14. A gap 142 is left between the support platform 14 and the inner wall of the mounting ring 15. The support platform 14 is annular and has a contact surface 141 on the inner side wall and the outer side wall, and a gap 142 is left between the support platform 14 and the inner wall of the mounting ring 15. This not only ensures the stable support and rotation of the operating platform 2, but also reasonably utilizes the space, making the device structure more compact.

[0049] Two baffles 23 are symmetrically fixedly installed on the operating platform 2. The two baffles 23 are located between the two sets of frame mounting components 21. A gap 231 is set between the two baffles 23. A connecting column 24 is fixedly connected to the center of the bottom of the operating platform 2. The top of the operating platform 2 and the connecting column 24 are jointly provided with a center hole 241. A cylindrical groove 25 is provided at the bottom of the connecting column 24, and a number of tooth grooves 251 are evenly provided on the inner wall of the cylindrical groove 25.

[0050] The bottom of the side wall of the connecting column 24 is evenly fixedly connected with a number of mounting seats 242, and a cross bar 243 is fixedly installed on the mounting seats 242. The side walls of the cross bar 243 are fixedly connected with a number of bristles 244, and the bottom of the bristles 244 are in contact with the inner wall of the workbench 1. The cross bar 243 and the bristles 244 are fixedly connected to the bottom of the side wall of the connecting column 24 at the bottom of the operating platform 2. During the rotation of the operating platform 2, the bristles 244 can clean the inner wall of the workbench 1 to prevent welding slag and the like from accumulating on the inner wall of the workbench 1 and affecting the normal operation of the device.

[0051] A mounting block 26 is fixedly connected to the bottom of both ends of the operating platform 2, and a trapezoidal groove 261 is provided in the center of the bottom of the mounting block 26. Two roller mounting grooves 262 are symmetrically provided on the side walls of the trapezoidal groove 261. A roller body 27 is rotatably installed on the inner wall of the roller mounting groove 262. The two roller bodies 27 are respectively fitted with the two contact surfaces 141 on the support platform 14. The roller bodies 27 on the mounting blocks 26 at the bottom of both ends of the operating platform 2 are fitted with the contact surfaces 141 on the support platform 14, so that the operating platform 2 can rotate stably on the support platform 14, which is convenient for adjusting the angle of the frame body 22 to adapt to different welding and cleaning requirements.

[0052] The top of the support column 3 is set inside the connecting column 24 and the gap 231. The middle part of the support column 3 is fixedly connected to a cylindrical support seat 31. The top of the cylindrical support seat 31 is provided with a bearing 311. The bearing 311 is fixedly installed on the support column 3, and the bearing 311 is fixedly installed inside the cylindrical groove 25.

[0053] A cavity 312 is provided in the middle of the cylindrical support seat 31, and an opening 313 is provided on one side of the cylindrical support seat 31. A transmission gear 32 is rotatably installed inside the opening 313, and the transmission gear 32 is transmission-connected to the tooth groove 251. The bearing 311 on the cylindrical support seat 31 is installed inside the cylindrical groove 25, which not only ensures the supporting effect of the support column 3 on the operating platform 2, but also enables the operating platform 2 to rotate smoothly, reduces friction resistance, and extends the service life of the device.

[0054] A driving gear 411 is fixedly installed on the top of the driving shaft 41. The driving gear 411 is arranged inside the cavity 312. The driving gear 411 is connected to the transmission gear 32. The motor 4 drives the driving shaft 41 to rotate. Through the transmission connection between the driving gear 411 and the transmission gear 32, the operating platform 2 is driven to rotate. The transmission structure is simple and stable, and can accurately control the rotation speed and direction of the operating platform 2 to meet different process requirements.

[0055] When in use, place the frame body 22 on the frame mounting assembly 21 away from the side of the protective plate 151 and fix it. Then start the motor 4. The motor 4 will drive the drive shaft 41 and the drive gear 411 to rotate. The drive gear 411 is connected to the transmission gear 32, and the transmission gear 32 is connected to the tooth groove 251. The operating platform 2 can be driven to rotate synchronously, so that the operating platform 2 can be turned over. The frame mounting assembly 21 with the frame body 22 installed is moved to the inside of the protective plate 151. Then, the robot can pass through the gap 1 52 is used to weld the frame. The mounting ring 15 and the protective plate 151 on the top of the workbench 1 are semicircular and have a notch 152. While not affecting the entry and exit and operation of the frame body 22, they can protect against splashes and the like during welding and cleaning, protecting the operator's safety, and also preventing welding slag and the like from splashing onto the outside of the device and causing pollution. In addition, during the welding process, the sandblasting machine 301 is controlled by the PLC and can follow the welding movements of the manipulator to clean the welding slag on the cooled weld surface, avoiding the need for manual cleaning of welding slag after the frame welding is completed.

[0056] Furthermore, the provision of the protective plate 151 and the two baffles 23 can prevent sparks from flying when welding the vehicle frame, thereby avoiding the possibility that the flying welding slag may cause harm to the workers. In addition, the funnel-shaped provision of the workbench 1 can collect sparks that are blocked by the protective plate 151 and the baffles 23, thereby preventing the welding slag from flying and scattering on the ground, thereby increasing the workload of the workers.

[0057] By setting the baffle 23, the frame mounting assembly 21 for welding is separated from the frame mounting assembly 21 for mounting the frame, which can prevent the high brightness generated during electric welding from damaging the eyes of the workers and increase the practicality of the device;

[0058] In addition, when the motor 4 is working, the operating platform 2 rotates, which will drive the cross bar 243 and the brush 244 at the bottom of the cross bar 243 to rotate synchronously, thereby cleaning the welding slag adsorbed on the inner wall of the workbench 1, avoiding the accumulation of welding slag on the inner wall of the workbench 1. The welding slag is finally discharged through the waste port 12, which is convenient for its collection.

[0059] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A frame welding device with an automatic welding slag cleaning structure, comprising a workbench (1), the workbench (1) being funnel-shaped, two pairs of supporting legs (101) being symmetrically fixedly mounted on the side walls of the workbench (1), a sealing block (11) being fixedly mounted at the bottom center axis of the workbench (1), a waste opening (12) being fixedly connected to the bottom side walls of the workbench (1), an operating platform (2) being provided at the top center axis of the workbench (1), two groups of frame mounting assemblies (21) being symmetrically fixedly mounted on the operating platform (2), and a frame body (22) being fixedly mounted on both groups of the frame mounting assemblies (21), wherein: Also includes: The top of the sealing block (11) is provided with an inclined surface (111), and a vertical support column (3) is fixedly installed on the top of the sealing block (11), and one end of the support column (3) away from the sealing block (11) extends to the top of the workbench (1), and a sandblasting machine (301) is fixedly installed on the top of the support column (3), and the sandblasting machine (301) is automatically controlled by a PLC; The sealing block (11) and the supporting column (3) are both provided with a central hole at their central axis; A motor (4) is fixedly mounted on the bottom of the sealing block (11), a drive shaft (41) is fixedly mounted on the output end of the motor (4), and the drive shaft (41) is rotatably mounted inside the central hole in the middle of the sealing block (11) and the supporting column (3); Two baffles (23) are symmetrically fixedly mounted on the operating platform (2), the two baffles (23) are located between the two sets of frame mounting components (21), and a gap (231) is provided between the two baffles (23). A connecting column (24) is fixedly connected to the center of the bottom of the operating platform (2), and a center hole (241) is provided on the top of the operating platform (2) and the connecting column (24). A cylindrical groove (25) is provided at the bottom of the connecting column (24), and a plurality of tooth grooves (251) are evenly provided on the inner wall of the cylindrical groove (25).

2. The vehicle frame welding device with an automatic slag cleaning structure according to claim 1, characterized in that: The inclination angle of the inclined surface (111) is the same as the inclination angle of the waste opening (12), and the inclined surface (111) is smoothly connected to the bottom inner wall of the waste opening (12). A plurality of mounting grooves (13) are evenly provided on the top of the side wall of the workbench (1), and a support plate (131) is fixedly installed inside each of the mounting grooves (13). One end of the support plate (131) extends toward the central axis of the workbench (1), and a support platform (14) is fixedly installed on the plurality of support plates (131).

3. The vehicle frame welding device with an automatic slag cleaning structure according to claim 2, characterized in that: A mounting ring (15) is fixedly mounted on the top of the workbench (1), and a protective plate (151) is fixedly mounted on the top of the mounting ring (15). The protective plate (151) is semicircular, and a notch (152) is provided at the center of the top of the side wall of the protective plate (151).

4. The vehicle frame welding device with an automatic slag cleaning structure according to claim 2, characterized in that: The support platform (14) is annular, and a contact surface (141) is provided on both the inner side wall and the outer side wall of the support platform (14). A gap (142) is left between the support platform (14) and the inner wall of the mounting ring (15).

5. The vehicle frame welding device with an automatic slag cleaning structure according to claim 1, characterized in that: The bottom of the side wall of the connecting column (24) is evenly fixedly connected to a plurality of mounting seats (242), a cross bar (243) is fixedly mounted on each of the mounting seats (242), and a plurality of bristles (244) are fixedly connected to the side wall of each of the cross bars (243), the bottoms of the bristles (244) are in contact with the inner wall of the workbench (1).

6. The vehicle frame welding device with an automatic slag cleaning structure according to claim 1, characterized in that: The bottom of both ends of the operating platform (2) is fixedly connected to a mounting block (26), the bottom center of each mounting block (26) is provided with a trapezoidal groove (261), the side wall of the trapezoidal groove (261) is symmetrically provided with two roller mounting grooves (262), the inner wall of each roller mounting groove (262) is rotatably mounted with a roller body (27), and the two roller bodies (27) are respectively supported on the two contact surfaces (141) on the platform (14) in contact.

7. The vehicle frame welding device with an automatic slag cleaning structure according to claim 1, characterized in that: The top of the support column (3) is arranged inside the connecting column (24) and the gap (231), the middle of the support column (3) is fixedly connected to a cylindrical support seat (31), the top of the cylindrical support seat (31) is provided with a bearing (311), the bearing (311) is fixedly mounted on the support column (3), and the bearing (311) is fixedly mounted inside the cylindrical groove (25).

8. The vehicle frame welding device with an automatic slag cleaning structure according to claim 7, characterized in that: A cavity (312) is provided in the middle of the cylindrical support seat (31), and an opening (313) is provided on one side of the cylindrical support seat (31). A transmission gear (32) is rotatably mounted inside the opening (313), and the transmission gear (32) is in transmission connection with the tooth groove (251).

9. The vehicle frame welding device with an automatic welding slag cleaning structure according to claim 1, characterized in that: A driving gear (411) is fixedly mounted on the top of the driving shaft (41), the driving gear (411) being disposed inside the cavity (312), and the driving gear (411) is in transmission connection with the transmission gear (32).

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