Turnover welding device for large sheet metal part production

Abstract

The invention discloses an overturning welding device for large sheet metal part production, and particularly relates to the technical field of welding, the overturning welding device comprises a supporting table, a shielding cover arranged at the upper end of the supporting table, a through groove formed in the upper end of the shielding cover, and a control table mounted on one side of the shielding cover; a supporting and positioning structure used for positioning and fixing the sheet metal part is arranged in the middle of the upper end of the supporting table, and a welding structure used for welding and overturning the sheet metal part is arranged at the upper end of the supporting table. Stable positioning and all-dimensional welding of sheet metal parts of different sizes are achieved through cooperation of the supporting and positioning structure and the welding structure, the supporting table provides a stable bearing foundation for all the structures, and the sliding table of the supporting and positioning structure can meet the supporting requirements of the sheet metal parts of different sizes; the laser welding arm of the welding structure ensures that welding seams are uniform, the strength is high, defects are reduced, the magnetic suction cup can assist in clamping in a lossless mode, the welding efficiency and quality are integrally and remarkably improved, and meanwhile the manual operation strength is reduced.

Description

Technical Field

[0001] This invention relates to the field of welding technology, and in particular to a flipping welding device for the production of large sheet metal parts. Background Technology

[0002] The field of welding technology encompasses welding process development, welding equipment design and manufacturing, and the development of welding auxiliary devices. The core of this technology lies in achieving atomic bonding on the surface or within a metal workpiece through heating and pressurization, or a combination of both, possibly accompanied by filler materials, thereby enabling the manufacturing, assembly, and repair of components. From an overall technological perspective, welding technology includes not only technical branches targeting different welding principles, such as equipment development and process parameter optimization for arc welding, resistance welding, and brazing, but also the development of adaptation technologies based on workpiece size, weight, and characteristics, such as micro-welding devices for small precision parts and heavy-duty welding equipment for large structural components. It also integrates technologies related to auxiliary functions such as workpiece positioning, fixing, and flipping during the welding process, forming a comprehensive technological system covering the entire welding process.

[0003] Among them, the large sheet metal part production flipping and welding device refers to a special equipment used in the production process of large sheet metal parts, which has a flipping function and is used to complete welding operations. The technical issues addressed by this equipment cover the workpiece flipping requirements and multi-position welding operation requirements during the welding of large sheet metal parts, which are achieved through the following means: First, a load-bearing flipping mechanism is set up. This mechanism uses a motor-driven gear transmission or a hydraulically driven rotating shaft to drive the large sheet metal parts placed on it to achieve multi-angle flipping around a horizontal or vertical axis; Second, a welding execution component is equipped. This component includes an adjustable welding torch clamping structure, which uses a screw drive or a guide rail slider in conjunction with a drive element to adjust the position of the welding torch in the up, down, left, right, forward, and backward directions; Third, a workpiece positioning component is installed. This component uses an adjustable positioning pin or a pneumatic clamping cylinder to position and fix the large sheet metal parts, ensuring the stability of the workpiece position during flipping and welding.

[0004] The workpiece positioning component only uses adjustable positioning pins or pneumatic clamping cylinders to fix sheet metal parts, lacking a buffer protection structure. This results in insufficient adaptability to sheet metal parts of different sizes and easy damage to the sheet metal surface. The welding execution component relies on lead screw transmission or guide rail sliders to adjust the position of the welding torch, which cannot achieve omnidirectional welding. Frequent adjustments to the sheet metal part position are required, leading to low welding efficiency. At the same time, the existing equipment lacks a smoke and arc light shielding structure, making operators susceptible to welding smoke and arc light injuries. There is also no convenient observation structure, making it difficult to detect and deal with welding problems in a timely manner, which affects the overall welding quality and operational safety. Summary of the Invention

[0005] The main objective of this invention is to provide a flipping welding device for the production of large sheet metal parts, which can effectively solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] A flipping and welding device for producing large sheet metal parts includes a support platform, a shielding cover disposed on the upper part of the support platform, a through groove opened on the upper part of the shielding cover, and a control console installed on one side of the shielding cover. A support positioning structure for positioning and fixing sheet metal parts is provided in the middle of the upper part of the support platform, and a welding structure for welding and flipping sheet metal parts is provided on the upper part of the support platform.

[0008] Preferably, the welding structure includes support frames rectangularly distributed and installed on the upper part of the support platform. A rectangular frame is fixedly installed on the upper part of the four support frames. A chain guide rail is provided on the inner wall of the rectangular frame, and a connecting seat is slidably connected to the inner surface of the chain guide rail. A laser welding arm equipped with a laser welder is fixedly installed at the lower end of the connecting seat. A chain belt is provided on the inner wall of the chain guide rail for driving the connecting seat to move along a circular trajectory. The chain belt is driven by a motor.

[0009] Preferably, the two support frames on the same side are slidably connected to each other on the side closest to each other. The sliding rod slides up and down under the limitation of two electric rotating shafts on the same side by a lifting machine. The inner surface of the sliding rod is slidably connected to an electric rotating shaft driven by an electric telescopic rod. A magnetic chuck driven by a motor is fixedly installed on the side of the electric rotating shaft near the center of the support platform.

[0010] Preferably, the support positioning structure includes a mounting platform installed at the middle of the upper part of the support platform. The mounting platform is H-shaped, with slides slidably connected to the recesses on both sides. A drive assembly for driving the slides on both sides is provided in the middle of the inner cavity of the mounting platform. A support assembly for supporting the inner wall of the sheet metal cabinet is provided on the side of the two slides that are far apart from each other. Several clamping assemblies for supporting the side plates of the sheet metal cabinet are arranged in an array at both the front and rear ends of the mounting platform. A motor-driven winding shaft is provided in the inner cavity of the slide.

[0011] Preferably, the support assembly includes a mounting plate installed on one side of the slide table. A flip-plate assembly is slidably mounted on the upper end of the mounting plate through an opening. A connecting component for driving the flip-plate assembly is provided in the inner cavity of the mounting plate. A cable one is fixedly connected to the side of the connecting component near the slide table, and a cable two is fixedly connected to the side of the flip-plate assembly near the slide table. Both cables one and two extend through the mounting plate into the inner cavity of the slide table and are wound around the surface of the winding shaft. The winding directions of cables one and two are opposite. When cable one is tightened, cable two is relatively loosened. A support plate is provided at the upper end of the flip-plate assembly.

[0012] Preferably, the flip-plate assembly includes a sliding seat slidably mounted on the upper side of the mounting plate and a T-shaped plate slidably mounted on the inner surface of the mounting plate. The lower end of the sliding seat is symmetrically and fixedly equipped with sliding wheels that are slidably connected to the inner surface of the mounting plate. The T-shaped plate is sleeved on the outer surface of the two sliding wheels. The sliding seat is U-shaped, with a rotating shaft rotatably connected to the inner wall of its vertical portion. A drive shaft is rotatably mounted on the inner wall of the horizontal portion of the sliding seat. A torque converter for driving the drive shaft to rebound is provided on the inner wall of the sliding seat. Gear sets connected to the drive shaft are provided on both the front and rear sides of the rotating shaft. Winding ropes fixedly connected to the connecting assembly are wound around both the front and rear sides of the outer surface of the drive shaft. The side of the T-shaped plate closest to the slide table is fixedly connected to a second cable, and the side of the T-shaped plate furthest from the slide table is fixedly connected to the connecting assembly. The inner surface of the support plate is fixedly connected to the outer surface of the rotating shaft.

[0013] Preferably, the connecting assembly includes two connecting plates slidably connected to the inner wall of the mounting plate. A spring is fixedly connected to one side of each connecting plate that is close to the other. The connecting plate closer to the slide is fixedly connected to a cable. A drive rope, fixedly connected to a winding rope, is also fixedly connected to the connecting plate closer to the slide. A connecting plate farther from the slide is fixedly connected to a connecting rope fixedly connected to the side of the sliding seat farther from the slide. The drive rope passes through the connecting plate and the T-shaped plate located on the side farther from the slide, extends into the inner cavity of the T-shaped plate, and is fixedly connected to the two winding ropes. When the spring is in contact with the inner wall of the sheet metal cabinet, the connecting plate farther from the slide stops moving, but the connecting plate closer to the slide continues to move. At this time, the spring is stretched under force, and the drive rope pulls the winding rope to move, driving the drive shaft to rotate through friction.

[0014] Preferably, the drive assembly includes an electric gear disk rotatably connected to the inner cavity of the mounting platform. L-shaped rods are slidably connected in a ring around the axis of the electric gear disk in the inner cavity of the mounting platform. A rack that meshes with the electric gear disk is fixedly connected to one side of the two L-shaped rods near the electric gear disk. A connecting rod that is fixedly connected to an adjacent slide is fixedly connected to one end of the two L-shaped rods near the slide on the same side.

[0015] Preferably, the clamping assembly includes an L-shaped clamping plate slidably connected to the side wall of the mounting platform. A push plate driven by an electric telescopic rod is slidably connected to the side wall of the mounting platform. A swing rod is rotatably connected to the side wall of the mounting platform via a bearing bracket. The upper and lower sides of the swing rod are slidably connected to adjacent swing rods and the L-shaped clamping plate through slots. When the push plate moves away from the mounting platform, the vertical part of the L-shaped clamping plate moves closer to the mounting platform. The horizontal height of the vertical part of the L-shaped clamping plate is twice the maximum height of the mounting platform.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This invention achieves stable positioning and all-around welding of sheet metal parts of different sizes through the cooperation of a support and positioning structure and a welding structure. The support platform provides a stable load-bearing foundation for each structure, the shielding cover confines the welding fumes and arc light inside to avoid injury to operators and protect the working environment, the control console realizes automated control of the start, stop and action of each structure, the slide of the support and positioning structure can adapt to the support needs of sheet metal parts of different sizes, the laser welding arm of the welding structure ensures uniform welds, high strength and reduces defects, and the magnetic chuck can assist in clamping without damage. Overall, it significantly improves welding efficiency and quality, while reducing the intensity of manual operation.

[0018] 2. This invention achieves efficient and stable flipping welding of large sheet metal parts through the cooperation of a welding structure and a support and positioning structure. In the welding structure, the support frame supports a rectangular frame, and the chain-type guide rail on the rectangular frame drives the connecting seat to move, enabling the laser welding arm to perform omnidirectional welding. This eliminates the need for frequent adjustments to the sheet metal part's position, thus improving efficiency. Furthermore, the laser welding arm ensures uniform welds and high strength. Magnetic chucks can assist in clamping without damaging the surface of the sheet metal part. In the support and positioning structure, the electric gear plate of the drive component drives the L-shaped rod and slide to move, adapting to sheet metal parts of different sizes to expand the scope of application. Springs can buffer and support the sheet metal part's surface, improving the overall adaptability and ease of operation of the equipment and reducing manual labor intensity.

[0019] 3. This invention achieves stable clamping of the side panel of the sheet metal cabinet by cooperating with the push plate, swing rod, and L-shaped clamping plate in the clamping assembly, combined with the mounting platform. The electric telescopic rod provides sliding power for the push plate, which drives the swing rod to rotate around the bearing bracket. The swing rod flexibly transmits through the slot and drives the L-shaped clamping plate to approach the clamping position. When the sheet metal cabinet is initially facing downwards, it can be firmly clamped. After flipping, the vertical part of the L-shaped clamping plate, because its height is twice the maximum height of the mounting platform, can continue to effectively clamp and prevent the sheet metal parts from shifting. After welding is completed, it can also drive the L-shaped clamping plate to reset, which greatly improves the fixation stability and operation convenience of the sheet metal parts during welding. Attached Figure Description

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

[0021] Figure 2 This is a cross-sectional structural diagram of the shielding cover of the present invention;

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

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

[0024] Figure 5 This is a schematic diagram of the structure of the support component of the present invention;

[0025] Figure 6This is a schematic diagram of the structure of the connection component of the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of the flap assembly of the present invention;

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

[0028] Figure 9 This is a schematic diagram of the clamping assembly of the present invention.

[0029] In the diagram: 1. Support platform; 2. Shielding cover; 21. Through slot; 3. Control console; 4. Welding structure; 41. Support frame; 42. Rectangular frame; 43. Chain guide rail; 44. Connecting seat; 45. Laser welding arm; 46. Sliding rod; 47. Electric rotating shaft; 48. Magnetic chuck; 5. Support positioning structure; 51. Mounting platform; 52. Slide table; 53. Clamping assembly; 531. L-shaped clamping plate; 532. Swing rod; 533. Push plate; 54. Support assembly; 541. Mounting plate; 542. Flip plate assembly; 542 1. T-shaped plate; 5422. Sliding seat; 5423. Rotating shaft; 5424. Gear set; 5425. Winding rope; 5426. Pulley; 5427. Torque generator; 5428. Drive shaft; 543. Support plate; 544. Connecting assembly; 5441. Connecting plate; 5442. Spring; 5443. Connecting rope; 5444. Drive rope; 545. Cable one; 546. Cable two; 55. Drive assembly; 551. Electric gear plate; 552. L-shaped rod; 553. Rack; 554. Connecting rod. Detailed Implementation

[0030] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0031] Example 1: A flipping welding device for producing large sheet metal parts, see reference. Figure 1 and Figure 2The system includes a support platform 1, which serves as the basic load-bearing component of the entire device, providing stable support for the structures above. A shielding cover 2 is installed on the upper end of the support platform 1, which can confine the fumes and arc light generated during the welding process inside, preventing harm to the health of the operators and protecting the working environment from pollution. A through groove 21 is opened on the upper end of the shielding cover 2, which facilitates loading and unloading operations for the operators. A control console 3 is installed on one side of the shielding cover 2, which is used to control the start, stop and operation of the various structures of the device, realizing the automated control of the entire welding process. A support positioning structure 5 is set in the middle of the upper end of the support platform 1 for positioning and fixing sheet metal parts. The support positioning structure 5 can stably position and fix sheet metal parts of different sizes, reducing the displacement of sheet metal parts during welding. A welding structure 4 is set on the upper end of the support platform 1 for welding and flipping sheet metal parts. The welding structure 4 can realize all-round welding and flexible flipping of sheet metal parts, meet the needs of different welding surfaces, and greatly improve welding efficiency and quality.

[0032] In the operation of this embodiment, the stable positioning and all-round welding of sheet metal parts of different sizes are achieved through the cooperation of the support and positioning structure 5 and the welding structure 4. The support platform 1 provides a stable bearing foundation for each structure. The shielding cover 2 restricts the welding fumes and arc light inside, avoiding injury to operators and protecting the working environment. The control console 3 realizes the automated control of the start, stop and action of each structure. The slide table 52 of the support and positioning structure 5 can adapt to the support requirements of sheet metal parts of different sizes. The laser welding arm 45 of the welding structure 4 ensures uniform weld, high strength and reduces defects. The magnetic chuck 48 can assist in clamping without damage. Overall, the welding efficiency and quality are significantly improved, while reducing the intensity of manual operation.

[0033] Example 2: Based on Example 1, this example achieves efficient and stable flipping welding of large sheet metal parts through the cooperation of welding structure 4 and support positioning structure 5. In welding structure 4, support frame 41 supports rectangular frame 42, and chain-type guide rail 43 on rectangular frame 42 drives connecting seat 44 to move, enabling laser welding arm 45 to perform omnidirectional welding. This eliminates the need for frequent adjustments to the sheet metal part position, thus improving efficiency. Furthermore, laser welding arm 45 ensures uniform weld seam and high strength. Magnetic chuck 48 can assist in clamping without damaging the surface of sheet metal parts. In support positioning structure 5, the electric gear plate 551 of drive component 55 drives L-shaped rod 552 and slide table 52 to move, adapting to sheet metal parts of different sizes to expand the scope of application. Spring 5442 can buffer and support the surface of sheet metal parts, improving the overall adaptability and ease of operation of the equipment and reducing manual labor intensity.

[0034] For further details, please refer to [link / reference]. Figure 3The welding structure 4 includes four rectangular support frames 41 mounted on the upper end of the support platform 1. The support frames 41 provide stable mounting support for the rectangular frames 42. The rectangular frames 42 are fixedly mounted on the upper ends of the four support frames 41. The rectangular frames 42 provide mounting carriers for the chain guide rails 43. Chain guide rails 43 are connected end-to-end on the inner wall of the rectangular frames 42. The circular design of the chain guide rails 43 provides a circular trajectory for the movement of the connecting seat 44. The connecting seat 44 is slidably connected to the inner surface of the chain guide rails 43. The connecting seat 44 is used to mount and fix the laser welding arm 45. 4. A laser welding arm 45 equipped with a laser welder is fixedly installed at the lower end. The laser welder can ensure more uniform weld seam and higher weld strength, reduce welding defects such as porosity and cracks, and improve the welding quality of sheet metal parts. The inner wall of the chain guide 43 is provided with a chain belt for driving the connecting seat 44 to move along the circular track. The chain belt is driven by a motor, and the motor drives the chain belt to drive the connecting seat 44 to slide along the circular track of the chain guide 43, so that the laser welding arm 45 can achieve all-round welding of sheet metal parts without frequent adjustment of the sheet metal parts position, which greatly improves welding efficiency.

[0035] For further details, please refer to [link / reference]. Figure 3 On the same side, two support frames 41 are slidably connected to each other on one side, with a sliding rod 46 providing mounting and sliding support for the electric rotating shaft 47. The sliding rod 46 slides up and down under the limit of the two electric rotating shafts 47 on the same side via a lifting machine. The up and down sliding of the sliding rod 46 can adjust the height of the magnetic suction cup 48 to meet different flipping position requirements. The inner surface of the sliding rod 46 is slidably connected to the electric rotating shaft 47 driven by an electric telescopic rod. The electric telescopic rod drives the electric rotating shaft 47 to slide on the inner surface of the sliding rod 46, which can adjust the magnetic suction cup 48 and the sheet metal. The distance between the metal parts and the electric rotating shaft 47 is such that a magnetic chuck 48 driven by a motor is fixedly installed on the side of the electric rotating shaft 47 near the center of the support platform 1. The magnetic chuck 48 can approach and attract the sheet metal parts. During the welding process, the magnetic chucks 48 on both sides can also work with the L-shaped clamping plate 531 to assist in clamping, further enhancing the stability of the sheet metal parts. The attraction method of the magnetic chuck 48 can quickly fix the sheet metal parts without damaging the surface of the sheet metal parts. The rotation of the electric rotating shaft 47 driven by the motor can drive the magnetic chuck 48 and the sheet metal parts to flip, meeting the needs of different welding surfaces.

[0036] Example 3 is based on Example 2.

[0037] For further details, please refer to [link / reference]. Figure 4The support and positioning structure 5 includes a mounting platform 51 installed at the upper center of the support platform 1. The mounting platform 51 provides a mounting base for components such as the slide table 52 and the drive assembly 55. The mounting platform 51 is H-shaped, with slide tables 52 slidably connected to the recesses on both sides. The H-shaped recesses provide space for the sliding of the slide tables 52, and the movement of the slide tables 52 can adapt to the support requirements of sheet metal parts of different sizes. The drive assembly 55, which drives the slide tables 52 on both sides, is provided in the middle of the inner cavity of the mounting platform 51. The drive assembly 55 provides power for the movement of the slide tables 52, realizing flexible adjustment of the position of the slide tables 52. Each of the two slides 52 is provided with a support component 54 supporting the inner wall of the sheet metal cabinet on one side away from each other. The support component 54 can provide stable support for the inner wall of the sheet metal cabinet and prevent the sheet metal parts from deforming during welding. Several clamping components 53 supporting the side plates of the sheet metal cabinet are arranged in an array at both ends of the mounting platform 51. The clamping components 53 can effectively clamp the side plates of the sheet metal cabinet and prevent the sheet metal parts from shifting after flipping. The inner cavity of the slide 52 is provided with a motor-driven winding shaft. The winding shaft provides power for the tightening and loosening of cable 1 545 and cable 2 546, thereby driving the support component 54 to move.

[0038] For further details, please refer to [link / reference]. Figure 5 The support assembly 54 includes a mounting plate 541 installed on one side of the slide table 52. The mounting plate 541 provides a mounting carrier for the flip-up assembly 542 and the connecting assembly 544. The flip-up assembly 542 is slidably mounted on the upper end of the mounting plate 541 through an opening. The flip-up assembly 542 can drive the support plate 543 to flip, so that the support plate 543 fits against the inner wall of the sheet metal cabinet. The inner cavity of the mounting plate 541 is provided with a connecting assembly 544 for driving the flip-up assembly 542. The connecting assembly 544 drives the flip-up assembly 542 to move under the pull of the cable 545. The cable 545 is fixedly connected to the side of the connecting assembly 544 near the slide table 52. A second cable 546 is fixedly connected to the side of component 542 near the slide table 52. Both the second cable 546 and the first cable 545 extend through the mounting plate 541 to the inner cavity of the slide table 52 and are wound around the surface of the winding shaft. The winding directions of the second cable 546 and the first cable 545 are opposite. When the first cable 545 is tightened, the second cable 546 is relatively loosened. This winding method can realize the opposite movement of the first cable 545 and the second cable 546, which, together with the drive support component 54, completes the support action. A support plate 543 is provided at the upper end of the flip plate component 542. The support plate 543 directly contacts the inner wall of the sheet metal cabinet, providing support for the sheet metal cabinet and enhancing the stability of the sheet metal parts during welding.

[0039] For further details, please refer to [link / reference]. Figure 6 and Figure 7The flip-plate assembly 542 includes a sliding seat 5422 slidably mounted on the upper side of the mounting plate 541 and a T-shaped plate 5421 slidably mounted on the inner surface of the mounting plate 541. The sliding seat 5422 provides mounting support for the rotating shaft 5423 and the drive shaft 5428. The T-shaped plate 5421 can be adjusted in position in conjunction with the sliding seat 5422. Sliding wheels 5426 are symmetrically fixedly mounted on the lower end of the sliding seat 5422 and slidably connected to the inner surface of the mounting plate 541. The sliding wheels 5426 can reduce the friction between the sliding seat 5422 and the mounting plate 541. To ensure smoother sliding of the sliding seat 5422, a T-shaped plate 5421 is fitted onto the outer surface of the two sliding wheels 5426. The sliding seat 5422 is U-shaped, with a rotating shaft 5423 rotatably connected to the inner wall of its vertical portion. Rotation of the rotating shaft 5423 causes the support plate 543 to flip. A drive shaft 5428 is rotatably mounted on the inner wall of the horizontal portion of the sliding seat 5422, providing power for the rotation of the rotating shaft 5423. A torque device 5427 is provided on the inner wall of the sliding seat 5422 to drive the drive shaft 5428 to rebound. The drive shaft 5428 provides a rebound force after rotation, facilitating the rapid reset of the support plate 543 and improving the ease of operation. Gear sets 5424, connected to the drive shaft 5428, are located on both the front and rear sides of the rotating shaft 5423. These gear sets 5424 transmit the rotation of the drive shaft 5428 to the rotating shaft 5423, achieving power transmission. Winding ropes 5425, fixedly connected to the connecting assembly 544, are wound around the front and rear sides of the outer surface of the drive shaft 5428. These winding ropes 5425 can be pulled by the connecting assembly 544. The drive shaft 5428 is rotated. The side of the T-shaped plate 5421 closest to the slide table 52 is fixedly connected to the second cable 546. The second cable 546 is loosened, which causes the T-shaped plate 5421 to slide within the mounting plate 541. The side of the T-shaped plate 5421 away from the slide table 52 is fixedly connected to the connecting component 544, which can adjust the position in conjunction with the connecting component 544. The inner surface of the support plate 543 is fixedly connected to the outer surface of the rotating shaft 5423. The rotation of the rotating shaft 5423 causes the support plate 543 to flip, so that the support plate 543 fits against the inner wall of the sheet metal cabinet to achieve support.

[0040] For further details, please refer to [link / reference]. Figure 6The connecting assembly 544 includes two connecting plates 5441 that are slidably connected to the inner wall of the mounting plate 541. The two connecting plates 5441 can slide within the mounting plate 541, providing power for the movement of the drive rope 5444 and the connecting rope 5443. A spring 5442 is fixedly connected to the side of the two connecting plates 5441 that is close to each other. When the support plate 543 contacts the inner wall of the sheet metal cabinet, the connecting plate 5441 on the side away from the slide table 52 stops moving, while the connecting plate 5441 on the side closer to the slide table 52 continues to move, stretching the spring 5442. The elasticity of the spring 5442 provides cushioning support to the inner wall of the sheet metal cabinet, preventing rigid contact damage to the sheet metal surface and enhancing the stability of the support. The connecting plate 5441 on the side closer to the slide table 52 is fixedly connected to a cable 545. Tightening the cable 545 can pull the connecting plate 5441 to move. A drive rope 5444, which is fixedly connected to the winding rope 5425, is also fixedly connected to the connecting plate 5441 on the side closer to the slide table 52. The movement of the drive rope 5444 can drive the winding rope 5425 to rotate, thereby driving the drive shaft 5428 to rotate. The connecting plate 5441 on the side away from the slide table 52 is fixedly connected to the connecting rope 5443 on the side of the sliding seat 5422 away from the slide table 52. The movement of the connecting plate 5441 can drive the sliding seat 5422 to slide through the connecting rope 5443. The drive rope 5444 passes through the connecting plate 5441 on the side away from the slide table 52, extends from the T-shaped plate 5421 to the T-shaped plate 542. The inner cavity is fixedly connected to two winding ropes 5425 to ensure that the drive rope 5444 can stably pull the winding rope 5425. When the spring 5442 is in contact with the inner wall of the sheet metal cabinet, the connecting plate 5441 on the side away from the slide table 52 stops moving, but the connecting plate 5441 on the side closer to the slide table 52 continues to move. At this time, the spring 5442 is stretched by force. At this time, the drive rope 5444 pulls the winding rope 5425 to move and drives the drive shaft 5428 to rotate through friction, so as to realize the action of the flip plate assembly 542.

[0041] For further details, please refer to [link / reference]. Figure 8The drive assembly 55 includes an electric gear disk 551 rotatably connected to the inner cavity of the mounting platform 51. The electric gear disk 551 provides power for the movement of the L-shaped rods 552. The L-shaped rods 552 are slidably connected in a ring around the axis of the electric gear disk 551 in the inner cavity of the mounting platform 51. The L-shaped rods 552 can slide within the mounting platform 51, thereby pushing the slide table 52 to move. A rack 553 that meshes with the electric gear disk 551 is fixedly connected to one side of the two L-shaped rods 552 near the electric gear disk 551. The rotation of the electric gear disk 551 can drive the rack 553 to move, thereby driving the L-shaped rods 552 to slide. The two L-shaped rods 552 are fixedly connected to the end of the slide table 52 on the same side, and are also fixedly connected to the adjacent slide table 52. The L-shaped rods 552 push the slide table 52 to slide in the left and right recesses of the mounting platform 51 through the connecting rods 554. During this process, the movement of the slide table 52 can adapt to the support requirements of sheet metal parts of different sizes, effectively improving the adaptability of the equipment to sheet metal parts of different specifications and expanding the application range of the equipment. When the electric gear plate 551 rotates in the opposite direction, it can drive the slide table 52 back to the initial position through the rack 553, L-shaped rods 552 and connecting rods 554.

[0042] Example 4: Based on Example 3, this example utilizes the cooperation of the push plate 533, swing rod 532, and L-shaped clamping plate 531 in the clamping assembly 53, combined with the mounting platform 51, to achieve stable clamping of the side panel of the sheet metal cabinet. The electric telescopic rod provides sliding power to the push plate 533, which drives the swing rod 532 to rotate around the bearing bracket. The swing rod 532 flexibly transmits through the slot and drives the L-shaped clamping plate 531 closer to the clamping position. Initially, when the recess of the sheet metal cabinet faces downward, it can be firmly clamped. After flipping, the vertical part of the L-shaped clamping plate 531, whose height is twice the maximum height of the mounting platform 51, can continue to effectively clamp and prevent the sheet metal parts from shifting. After welding is completed, it can also drive the L-shaped clamping plate 531 to reset, greatly improving the fixation stability and operation convenience of the sheet metal parts during welding.

[0043] For further details, please refer to [link / reference]. Figure 9The clamping assembly 53 includes an L-shaped clamping plate 531 slidably connected to the side wall of the mounting platform 51. The L-shaped clamping plate 531 can directly contact the side panel of the sheet metal cabinet to achieve clamping. A push plate 533 driven by an electric telescopic rod is slidably connected to the side wall of the mounting platform 51. The electric telescopic rod provides power for the sliding of the push plate 533. The movement of the push plate 533 can drive the swing rod 532 to move. The swing rod 532 is rotatably connected to the side wall of the mounting platform 51 through a bearing bracket. The bearing bracket provides support for the rotation of the swing rod 532. The swing rod 532 can convert the sliding of the push plate 533 into the clamping action of the L-shaped clamping plate 531. The upper and lower sides of the swing rod 532 are slidably connected to adjacent swing rods 532 and L-shaped clamping plates 531 through slots. The slots can ensure flexible transmission between the swing rod 532 and adjacent components. When 533 moves away from the mounting platform 51, the vertical part of the L-shaped clamp 531 moves closer to the mounting platform 51, and the sheet metal cabinet is a box-shaped cabinet with one side opening. In the initial state, when the recess is facing down, the electric telescopic rod pushes the push plate 533, and the push plate 533 drives the swing rod 532 to rotate around the bearing bracket. The swing rod 532 drives the L-shaped clamp 531 to move closer to the side panel of the sheet metal cabinet through the slot and cooperates in clamping. When the sheet metal cabinet is flipped to the position where the recess is facing up, the push plate 533 loses its clamping function due to its position. At this time, the horizontal height of the vertical part of the L-shaped clamp 531 is twice the maximum height of the mounting platform 51, which can continue to cover the height of the side panel of the sheet metal cabinet and achieve effective clamping, avoiding the sheet metal parts from shifting due to clamping failure after flipping. After welding is completed, the L-shaped clamp 531 releases the sheet metal parts under the action of the push plate 533 and the swing rod 532, and achieves reset.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A flipping welding device for producing large sheet metal parts, comprising a support platform (1), a shielding cover (2) disposed on the upper end of the support platform (1), a through groove (21) formed on the upper end of the shielding cover (2), and a control console (3) installed on one side of the shielding cover (2), characterized in that: The upper middle part of the support platform (1) is provided with a support positioning structure (5) for positioning and fixing sheet metal parts, and the upper end of the support platform (1) is provided with a welding structure (4) for welding and flipping sheet metal parts.

2. The flipping welding device for large sheet metal parts production according to claim 1, characterized in that: The welding structure (4) includes a support frame (41) that is rectangularly distributed and installed on the upper end of the support platform (1). A rectangular frame (42) is fixedly installed on the upper end of the four support frames (41). A chain guide (43) with the ends connected is opened on the inner wall of the rectangular frame (42). A connecting seat (44) is slidably connected to the inner surface of the chain guide (43). A laser welding arm (45) with a laser welder is fixedly installed at the lower end of the connecting seat (44). A chain belt for driving the connecting seat (44) to move along a circular track is provided on the inner wall of the chain guide (43). The chain belt is driven by a motor.

3. The flipping welding device for large sheet metal parts production according to claim 2, characterized in that: The two support frames (41) on the same side are slidably connected to a sliding rod (46) on the side close to each other. The sliding rod (46) slides up and down under the limit of two electric rotating shafts (47) on the same side by a lifting machine. The inner surface of the sliding rod (46) is slidably connected to an electric rotating shaft (47) driven by an electric telescopic rod. A magnetic chuck (48) driven by a motor is fixedly installed on the side of the electric rotating shaft (47) close to the center of the support platform (1).

4. The flipping welding device for large sheet metal parts production according to claim 1, characterized in that: The support positioning structure (5) includes a mounting platform (51) installed at the middle of the upper end of the support platform (1). The mounting platform (51) is H-shaped and has sliding tables (52) slidably connected to the recesses on both sides. A drive assembly (55) for driving the sliding tables (52) is provided in the middle of the inner cavity of the mounting platform (51). A support assembly (54) for supporting the inner wall of the sheet metal cabinet is provided on the side of the two sliding tables (52) that are far apart from each other. Several clamping assemblies (53) for supporting the side plates of the sheet metal cabinet are arranged in an array at both the front and rear ends of the mounting platform (51). A motor-driven winding shaft is provided in the inner cavity of the sliding table (52).

5. The flipping welding device for large sheet metal parts production according to claim 4, characterized in that: The support assembly (54) includes a mounting plate (541) installed on one side of the slide (52). A flip plate assembly (542) is slidably installed on the upper end of the mounting plate (541) through a slot. A connecting assembly (544) for driving the flip plate assembly (542) is provided in the inner cavity of the mounting plate (541). A cable (545) is fixedly connected to the side of the connecting assembly (544) near the slide (52). A cable (546) is fixedly connected to the side of the flip plate assembly (542) near the slide (52). Both the cable (546) and the cable (545) extend through the mounting plate (541) to the inner cavity of the slide (52) and are wound around the surface of the winding shaft. The winding directions of the cable (546) and the cable (545) are opposite. When the cable (545) is tightened, the cable (546) is relatively loosened. A support plate (543) is provided on the upper end of the flip plate assembly (542).

6. The flipping welding device for large sheet metal parts production according to claim 5, characterized in that: The flip-plate assembly (542) includes a sliding seat (5422) slidably mounted on the upper side of the mounting plate (541) and a T-shaped plate (5421) slidably mounted on the inner surface of the mounting plate (541). The lower end of the sliding seat (5422) is symmetrically fixed with sliding wheels (5426) that are slidably connected to the inner surface of the mounting plate (541). The T-shaped plate (5421) is sleeved on the outer surface of the two sliding wheels (5426). The sliding seat (5422) is U-shaped, with a rotating shaft (5423) rotatably connected to the inner wall of its vertical portion. A drive shaft (5428) is rotatably mounted on the inner wall of the horizontal portion of the sliding seat (5422). A torque device (5427) for driving the drive shaft (5428) to rebound is provided. Gear sets (5424) connected to the drive shaft (5428) are provided on both the front and rear sides of the rotating shaft (5423). A winding rope (5425) fixedly connected to the connecting assembly (544) is wound around both the front and rear sides of the outer surface of the drive shaft (5428). The side of the T-shaped plate (5421) near the slide table (52) is fixedly connected to the second cable (546). The side of the T-shaped plate (5421) away from the slide table (52) is fixedly connected to the connecting assembly (544). The inner surface of the support plate (543) is fixedly connected to the outer surface of the rotating shaft (5423).

7. The flipping welding device for large sheet metal parts production according to claim 6, characterized in that: The connecting assembly (544) includes two connecting plates (5441) slidably connected to the inner wall of the mounting plate (541). A spring (5442) is fixedly connected to one side of the two connecting plates (5441) that is close to each other. The connecting plate (5441) near the slide (52) is fixedly connected to cable (545). A drive rope (5444) fixedly connected to the winding rope (5425) is also fixedly connected to the connecting plate (5441) near the slide (52). The connecting plate (5441) away from the slide (52) is fixedly connected to the side of the sliding seat (5422) away from the slide (52). The connecting rope (5443) and the driving rope (5444) pass through the connecting plate (5441) and the T-shaped plate (5421) located on the side away from the slide (52), extending to the inner cavity of the T-shaped plate (5421) and being fixedly connected to the two winding ropes (5425); when the spring (5442) is in contact with the inner wall of the sheet metal cabinet, the connecting plate (5441) on the side away from the slide (52) stops moving, but the connecting plate (5441) on the side closer to the slide (52) continues to move. At this time, the spring (5442) is stretched by force, and the driving rope (5444) pulls the winding rope (5425) to move and drives the driving shaft (5428) to rotate through friction.

8. The flipping welding device for large sheet metal parts production according to claim 4, characterized in that: The drive assembly (55) includes an electric gear disk (551) rotatably connected to the inner cavity of the mounting platform (51). L-shaped rods (552) are slidably connected in a ring along the axis of the electric gear disk (551) in the inner cavity of the mounting platform (51). A rack (553) that meshes with the electric gear disk (551) is fixedly connected to one side of the two L-shaped rods (552) near the electric gear disk (551). A connecting rod (554) that is fixedly connected to the adjacent slide (52) is fixedly connected to one end of the two L-shaped rods (552) near the same side slide.

9. The flipping welding device for large sheet metal parts production according to claim 4, characterized in that: The clamping assembly (53) includes an L-shaped clamp (531) slidably connected to the side wall of the mounting platform (51). The side wall of the mounting platform (51) is slidably connected to a push plate (533) driven by an electric telescopic rod. The side wall of the mounting platform (51) is rotatably connected to a swing rod (532) via a bearing bracket. The upper and lower sides of the swing rod (532) are slidably connected to the adjacent swing rod (532) and the L-shaped clamp (531) through slots respectively. When the push plate (533) moves away from the mounting platform (51), the vertical part of the L-shaped clamp (531) moves closer to the mounting platform (51). The horizontal height of the vertical part of the L-shaped clamp (531) is twice the maximum height of the mounting platform (51).

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