Anti-deformation support structure for steel plate surface welding steel structure

Abstract

The utility model relates to the field of steel structure welding especially relates to a kind of anti-deformation support structure for steel structure welding for steel plate surface, including backrest, backrest back end fixed mounting has connecting piece, connecting piece other end is hinged with base;Backrest surface is equipped with several arc support plates, and the bottom end of each arc support plate is equipped with adjusting structure;Adjusting structure includes hollow in backrest interior movable slot, movable slot is rotatably installed with screw rod, and the surface of screw rod is equipped with positive screw thread and reverse screw thread, and positive screw thread is threadedly connected with first push block, and this anti-deformation support structure is linked by screw rod and wedge, realizes the accurate flexible adjustment of arc support plate height, can satisfy various steel plate material, thickness and welding process demand;Adopt the driving structure of gear chain transmission, realize the synchronous adjustment of multiple support plates, significantly shorten the adjustment time, improve operation efficiency;Effectively reduce steel plate welding deformation risk, guarantee welding quality, overcome the drawbacks of traditional technology.

Description

Technical Field

[0001] This utility model relates to the field of steel structure welding technology, specifically a deformation-resistant support structure for welding steel structures on the surface of steel plates. Background Technology

[0002] In the field of steel structure manufacturing and assembly, steel plate welding is extremely common. Especially in the process of welding small steel plates onto large steel plates, welding deformation has always been a challenging problem in the industry. During welding, uneven distribution of thermal stress caused by localized high temperatures can easily lead to warping and deformation on both sides of the steel plate. These deformations not only affect the dimensional accuracy of the steel structure, making it difficult to meet design requirements, but also reduce the structure's load-bearing capacity and stability, posing a serious threat to project quality and safety. Therefore, after extensive experimentation, a deformation-resistant support structure has been proposed. Summary of the Invention

[0003] The main purpose of this utility model is to solve the above-mentioned existing technical problems and provide a deformation-resistant support structure for welding steel structures on steel plate surfaces.

[0004] The specific solution of this utility model is as follows: a deformation-resistant support structure for welding steel structures on steel plate surfaces, comprising a back plate, a connector fixedly installed at the back end of the back plate, and a base hinged to the other end of the connector; a plurality of arc-shaped support plates are installed on the surface of the back plate, and an adjustment structure is installed at the bottom end of each arc-shaped support plate; the adjustment structure includes a movable groove hollowed out inside the back plate, a lead screw rotatably installed in the movable groove, the surface of the lead screw having a positive thread and a negative thread, the positive thread thread connecting to a first push block, and the negative thread thread connecting to a second push block; an opening communicating with the movable groove is opened on the surface of the back plate, and a sliding groove is opened inside the opening, the arc-shaped support plate being located in the opening and slidably connected to the sliding groove; the top of the first push block and the second push block has an inclined structure, and the bottom end of the arc-shaped support plate has a first wedge and a second wedge, the first wedge and the second wedge respectively contacting the top of the first push block and the second push block; a driving structure is installed at one end of the lead screw, when the lead screw rotates, it drives the first push block and the second push block to move along the lead screw and push the first wedge and the second wedge, so that the arc-shaped support plate moves along the sliding groove.

[0005] According to the above technical solution, a basic frame is formed by hinged connection of the back plate, connector and base. The arc-shaped support plate on the surface of the back plate and its bottom end with the adjustment structure containing screw, push block and wedge block are used. When the screw rotates, it drives the push block to push the wedge block, so that the arc-shaped support plate can move along the slide to flexibly adjust the support force and prevent welding deformation.

[0006] Furthermore, the drive structure includes a housing located at one end of the back plate, the housing having a hollow interior, a movable groove communicating with the hollow interior of the housing, one end of each lead screw passing through the housing and connected to a gear, the gear surfaces being meshed with a chain, the chain driving each gear to rotate when working, a motor installed outside the housing, the motor output end being connected to one of the gears in a transmission connection.

[0007] According to the above technical solution, a motor drives one of the gears, which in turn drives the gears at the ends of each lead screw to rotate synchronously via a chain, thereby achieving the linkage adjustment of multiple arc-shaped support plates.

[0008] Furthermore, the arc-shaped support plates are evenly arranged on the surface of the backing plate, and the backing plate has a rectangular structure.

[0009] According to the above technical solution, by evenly distributing arc-shaped support plates on it, a stable and balanced support surface can be formed during steel plate welding, effectively dispersing welding stress and reducing the risk of deformation caused by local stress concentration.

[0010] Furthermore, a guide groove is provided at the bottom of the movable groove, the guide groove is arranged along the direction of the lead screw, and the bottom of the first push block and the second push block are slidably connected to the guide groove.

[0011] According to the above technical solution, by setting a guide groove at the bottom of the movable groove along the direction of the lead screw, and sliding the bottom of the first push block and the second push block with it, the movement trajectory of the push block can be effectively restricted, ensuring that it moves smoothly only along the direction of the lead screw when the lead screw rotates, avoiding deviation or shaking, thereby ensuring the accuracy and stability of the arc support plate adjustment, and improving the reliability and working efficiency of the anti-deformation support structure.

[0012] Furthermore, one end of the lead screw is rotatably connected to the inner wall of the movable groove, and the other end extends toward the gear side and is rotatably connected to the inner wall of the housing.

[0013] According to the above technical solution, one end of the lead screw is rotatably connected to the inner wall of the movable groove, and the other end extends to the housing and is rotatably connected to the inner wall of the housing, providing a stable rotation fulcrum for the lead screw and ensuring that the lead screw can rotate smoothly and stably under the drive of the motor.

[0014] Compared with the prior art, this utility model has the following advantages: This anti-deformation support structure achieves precise and flexible adjustment of the height of the arc-shaped support plate through the linkage of the lead screw and the wedge block, which can meet the requirements of various steel plate materials, thicknesses and welding processes; the drive structure of gear chain transmission enables synchronous adjustment of multiple support plates, significantly shortening the adjustment time and improving work efficiency; it effectively reduces the risk of steel plate welding deformation, ensures welding quality, and overcomes the drawbacks of traditional technology. Attached Figure Description

[0015] Figure 1 This is a plan view of the present invention;

[0016] Figure 2 This is a plan view of the backing plate structure of this utility model;

[0017] Figure 3 This is a front sectional view of the backrest structure of this utility model;

[0018] Figure 4 yes Figure 3 Enlarged view of the structure at point A;

[0019] Figure 5 yes Figure 2 Sectional view of the structure at BB;

[0020] Figure 6 yes Figure 5 Enlarged view of the structure at point C;

[0021] In the diagram: 1. Backing plate; 2. Connector; 3. Base; 4. Arc-shaped support plate; 5. Movable groove; 6. Lead screw; 7. Positive thread; 8. Negative thread; 9. First push block; 10. Second push block; 11. Opening; 12. Slide groove; 13. First wedge; 14. Second wedge; 15. Housing; 16. Gear; 17. Chain; 18. Motor; 19. Guide groove. Detailed Implementation

[0022] See Figure 1-6This embodiment is a deformation-resistant support structure for welded steel structures on steel plate surfaces. The back plate 1 is rectangular, with a connector 2 welded to its back end. The other end of the connector 2 is hinged to a base 3, which supports the back plate 1. The back plate 1 can be rotated around the top of the base 3 via the connector 2. Several arc-shaped support plates 4 are mounted on the surface of the back plate 1. Each arc-shaped support plate 4 has an adjustment structure at its bottom, which adjusts the height of the arc-shaped support plate 4 according to different materials and conditions. The adjustment structure includes a movable groove 5 hollowed out along the width of the rectangular back plate 1. A lead screw 6 is rotatably installed in the movable groove 5. The lead screw 6 has positive threads 7 and negative threads 8 on both sides of its surface. The positive thread 7 is threaded to a first push block 9, and the negative thread 8 is threaded to a second push block 10. An opening 11 communicating with the movable groove 5 is opened on the surface of the back plate 1. Sliding grooves 12 are opened on both sides of the opening 11. The arc-shaped support plates 4 are located at the opening... The arc-shaped support plate 4 is slidably connected to the groove 12 inside the opening 11, and can move up and down along the groove 12. The top of the first push block 9 and the second push block 10 are inclined structures. The bottom end of the arc-shaped support plate 4 is welded with the first wedge 13 and the second wedge 14. The inclined surface of the bottom end of the first wedge 13 is in contact with the inclined surface of the top end of the first push block 9. The inclined surface of the first wedge 13 gradually rises from right to left. When the first wedge 13 and the first push block 9 are fully attached, they form a rectangular structure. The inclined surface of the bottom end of the second wedge 14 is in contact with the inclined surface of the top end of the second push block 10. The inclined surface of the second wedge 14 gradually rises from left to right. When the second wedge 14 and the second push block 10 are fully attached, they form a rectangular structure. One end of the screw 6 is equipped with a drive structure. When the screw 6 rotates, it drives the first push block 9 and the second push block 10 to move along the screw and push the first wedge 13 and the second wedge 14, so that the arc-shaped support plate 4 moves along the groove 12 to achieve the effect of adjusting the support height of the arc-shaped support plate 4.

[0023] Furthermore, the drive structure includes a housing 15 welded to one end surface of the back plate 1. The housing 15 has a hollow interior. The movable groove 5 communicates with the hollow interior of the housing 15. One end of each lead screw 6 passes into the housing 15 and is fixedly connected to a gear 16. A chain 17 is meshed with the surface of the gear 16. When the chain 17 is working, it drives each gear 16 to rotate. A motor 18 is installed outside the housing 15. The output end of the motor 18 is connected to the rightmost gear 16.

[0024] Furthermore, the arc-shaped support plates 4 are evenly arranged on the surface of the backing plate 1, and the backing plate 1 has a rectangular structure.

[0025] Furthermore, a guide groove 19 is provided at the bottom of the movable groove 5. The guide groove 19 is arranged along the direction of the lead screw 6, and the bottom of the first push block 9 and the second push block 10 are slidably connected to the guide groove 19.

[0026] Furthermore, one end of the lead screw 6 is rotatably connected to the inner wall of the movable groove 5, and the other end extends toward the gear 16 and is rotatably connected to the inner wall of the housing 15. One end of the lead screw 6 is directly connected to the output end of the motor 18. This arrangement provides a fulcrum for the rotation of the lead screw 6, thereby improving the rotational stability of the lead screw 6.

[0027] The working principle of this embodiment is as follows: When the height of the arc-shaped support plate 4 needs to be adjusted, the motor 18 starts, and the output end of the motor 18 drives the gear 16 connected to it to rotate. Since the gears 16 mesh with each other through the chain 17, the rotation of one gear 16 will drive the chain 17 to work, thereby making the gears 16 on each lead screw 6 rotate synchronously. When the lead screw 6 rotates, the positive thread 7 and the negative thread 8 on both sides of its surface will drive the first push block 9 and the second push block 10 to move along the lead screw 6, respectively. Because the top of the first push block 9 and the second push block 10 is a sloping structure, and they are in contact with the sloping surfaces of the first wedge block 13 and the second wedge block 14 welded to the bottom of the arc-shaped support plate 4, as the first push block 9 and the second push block 10 move, they will push the first wedge block 13 and the second wedge block 14. Due to the force, the arc-shaped support plate 4 will move up and down along the sliding groove 12 on the surface of the backing plate 1, thereby realizing the adjustment of the support height of the arc-shaped support plate 4. After adjusting the height of the arc-shaped support plate 4, the back plate 1 is rotated left and right around the top of the base 3 via the connector 2. The arc-shaped support plate 4 on the back plate 1 can then support the steel structure to be welded on the steel plate surface. The support height can be flexibly adjusted according to different steel plate materials and welding conditions to effectively prevent the steel plate from deforming during the welding process.

Claims

1. A deformation-resistant support structure for welded steel structures on steel plate surfaces, characterized in that: The system includes a backrest, with a connector fixedly mounted on the back end of the backrest and a base hinged to the other end of the connector. Several arc-shaped support plates are mounted on the surface of the backrest, each with an adjustment structure at its bottom. The adjustment structure includes a movable groove hollowed out inside the backrest, within which a lead screw is rotatably mounted. The lead screw has both positive and negative threads on its surface; the positive thread connects to a first push block, and the negative thread connects to a second push block. An opening communicating with the movable groove is formed on the surface of the backrest, and a sliding groove is formed inside the opening. The arc-shaped support plates are located within the opening and slidably connected to the sliding groove. The tops of the first and second push blocks are sloped, and the bottom of the arc-shaped support plates has a first wedge and a second wedge, which respectively contact the tops of the first and second push blocks. A driving structure is mounted on one end of the lead screw; when the lead screw rotates, it drives the first and second push blocks to move along the lead screw and push against the first and second wedges, causing the arc-shaped support plates to move along the sliding groove.

2. The deformation-resistant support structure for welded steel structures on steel plate surfaces according to claim 1, characterized in that: The drive structure includes a housing located at one end of the back plate. The housing has a hollow interior. The movable groove communicates with the hollow interior of the housing. One end of each lead screw passes through the housing and is connected to a gear. A chain is meshed with the surface of the gear. When the chain is working, it drives each gear to rotate. A motor is installed outside the housing. The output end of the motor is connected to one of the gears.

3. The anti-deformation support structure for welded steel structures on steel plate surfaces according to claim 1, characterized in that: The arc-shaped support plates are evenly arranged on the surface of the backing plate, which has a rectangular structure.

4. The anti-deformation support structure for welded steel structures on steel plate surfaces according to claim 1, characterized in that: The bottom of the movable groove is provided with a guide groove, which is arranged along the direction of the lead screw. The bottom of the first push block and the second push block are slidably connected to the guide groove.

5. The anti-deformation support structure for welded steel structures on steel plate surfaces according to claim 1, characterized in that: One end of the lead screw is rotatably connected to the inner wall of the movable groove, and the other end extends toward the gear side and is rotatably connected to the inner wall of the housing.

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