Flange plate turnover device for H-shaped steel welding

By designing a flange plate flipping device for H-beam welding, the automatic flipping of the flange plate is achieved by using hydraulic cylinders and gear transmission, which solves the problem of low flipping efficiency in the existing technology and improves production efficiency and welding accuracy.

CN224115538UActive Publication Date: 2026-04-14HENAN TIANJIAN YONGGU STEEL STRUCTURE ENGINEERING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-30
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

In H-beam production, the flipping of flange plates mainly relies on cranes and manual operation, resulting in low flipping efficiency and difficulty in meeting the needs of large-scale, high-efficiency production.

Method used

A flange plate flipping device for H-beam welding was designed, including a support base, a high-strength shaft, a drive assembly, and a flange plate placement unit. The device achieves automatic flipping and positioning of the flange plate through hydraulic cylinders and gear transmission, and the telescopic arm assembly ensures the stability and accuracy of the flipping process.

Benefits of technology

It significantly shortens the turning time, improves the overall turning efficiency, ensures the accurate positioning and welding precision of the flange and web, and meets the needs of large-scale, high-efficiency production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a flange plate turnover device for H-shaped steel welding, and relates to the field of H-shaped steel production, the flange plate turnover device comprises a supporting seat, a high-strength shaft, a driving assembly and a flange plate placing unit, and the top of the supporting seat is fixedly welded with a mounting plate. Two hydraulic rods are controlled to synchronously contract, so that an L-shaped clamping plate slides along an L-shaped bearing plate, a flange plate is stably clamped, two hydraulic cylinders are controlled to synchronously contract, the hydraulic cylinders drive a rack, the rack is meshed with a transmission gear, then a high-strength shaft and a flange plate containing unit are driven to rotate by 90 degrees, and automatic overturning of the flange plate containing unit is achieved. The flange plate is made to be perpendicular to the web plate by controlling the three electric cylinders to stretch synchronously, the flange plate makes contact with the web plate, workers can weld and fix the flange plate and the web plate together conveniently, and therefore the overturning time is greatly shortened, the overall overturning efficiency is remarkably improved, and the large-scale and high-efficiency production requirement is fully met.
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Description

Technical Field

[0001] This utility model belongs to the field of H-beam production, specifically relating to a flange plate flipping device for welding H-beams. Background Technology

[0002] In steel structure construction, bridges, and other engineering fields, H-beams are widely used as important building components due to their excellent mechanical properties. H-beams are typically constructed by welding flanges and webs together. However, during the welding process, the flat flanges need to be rotated 90 degrees to make them perpendicular to the web. This ensures that the flanges and web can be correctly assembled and securely welded together, thus forming an H-beam structure that meets design requirements.

[0003] Currently, in the actual production of H-beams, the flipping of flange plates is mainly accomplished by a crane in conjunction with workers. Operators need to control the crane to lift the flange plates, and workers manually adjust the angle to achieve the flipping. During the flipping process, operations such as flange plate positioning, clamping, and balance control are time-consuming and labor-intensive, resulting in relatively low overall flipping efficiency, which is insufficient to meet the demands of large-scale, high-efficiency production.

[0004] Therefore, we propose a flange plate flipping device for welding H-beams to solve the above problems. Utility Model Content

[0005] In the current H-beam production process, the flange plate flipping is mainly accomplished by cranes and workers. The operation is time-consuming and labor-intensive, resulting in low overall flipping efficiency, which is difficult to meet the needs of large-scale and high-efficiency production. This utility model provides a flange plate flipping device for H-beam welding.

[0006] The solution adopted by this utility model to solve its technical problem is: a flange plate flipping device for welding H-beams, including a support base, a high-strength shaft, a drive assembly and a flange plate placement unit, wherein a mounting plate is welded and fixed to the top of the support base;

[0007] Multiple bearing seats are mounted on the high-strength shaft. The bearing seats are fixedly installed on the upper surface of the mounting plate. The drive assembly is connected to the high-strength shaft and can drive the high-strength shaft to rotate.

[0008] The flange plate placement unit includes a support beam, an L-shaped clamp, and N telescopic arm assemblies. N L-shaped bearing plates for placing flange plates are welded and fixed on the side of the support beam away from the high-strength shaft.

[0009] The L-shaped clamp plate has N rectangular holes, which are adapted to the L-shaped support plate, allowing the L-shaped clamp plate to slide along the L-shaped support plate. At least two hydraulic rods are installed between the L-shaped clamp plate and the support beam.

[0010] N telescopic boom assemblies are respectively set with N L-shaped bearing plates. One end of the telescopic boom assembly is fixedly connected to the high-strength shaft, and the other end is fixedly connected to the L-shaped bearing plate.

[0011] Preferably, the number of drive components is two sets.

[0012] Preferably, the drive assembly includes a hydraulic cylinder, a rack, and a gear mounted on a high-strength shaft. The hydraulic cylinder is fixedly mounted on the upper surface of the mounting plate, and a connecting block is fixedly connected between its piston rod and the rack, with the rack meshing with the gear.

[0013] Preferably, a slide bar is fixedly installed at the bottom of the rack, and guide plates are respectively provided on the front and rear sides of the slide bar. The guide plates are fixedly installed on the upper surface of the mounting plate, and a guide channel is formed between the two guide plates, so that the slide bar and the connecting block can slide in the guide channel.

[0014] Preferably, the telescopic arm assembly includes an inner arm, an electric cylinder, and an outer arm welded and fixed to the side of an L-shaped support plate. A connecting sleeve is welded and fixed to one end of the inner arm, and the connecting sleeve is fitted onto a high-strength shaft. The open end of the inner arm is located in the inner cavity of the outer arm, and the electric cylinder is located in the inner cavity of the inner wall and fixedly installed between the inner arm and the outer arm.

[0015] Preferably, a rib is welded and fixed between the outer arm and the L-shaped support plate.

[0016] Preferably, the two bottom edges of the support base are provided with multiple mounting holes.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model suspends the flange plate on multiple L-shaped support plates and controls the synchronous contraction of two hydraulic rods, causing the L-shaped clamping plate to slide along the L-shaped support plates and securely hold the flange plate. By controlling the synchronous contraction of two hydraulic cylinders, the hydraulic cylinders drive the rack, which meshes with the transmission gear, thereby driving the high-strength shaft and the flange plate placement unit to rotate 90 degrees, realizing the automatic flipping of the flange plate placement unit, making the flange plate perpendicular to the web plate. By controlling the synchronous extension of three electric cylinders, the flange plate comes into contact with the web plate, so that workers can weld the flange plate and the web plate together. This significantly shortens the flipping time, significantly improves the overall flipping efficiency, and fully meets the needs of large-scale, high-efficiency production.

[0019] 2. This utility model ensures the smoothness of rack movement through the design of guide plate and slide bar, thereby ensuring the stability of high-strength shaft rotation, maintaining the balance of flange plate during flipping, avoiding swaying or deviation, and improving the accuracy of flange plate and web plate assembly and welding. Attached Figure Description

[0020] Figure 1 This is one of the three-dimensional structural schematic diagrams of this utility model;

[0021] Figure 2 This is the second three-dimensional structural schematic diagram of the present invention;

[0022] Figure 3 This is a frontal cross-sectional view of the present invention.

[0023] In the diagram: 1 Support base, 2 Mounting plate, 31 Bearing seat, 32 High-strength shaft, 41 Hydraulic cylinder, 42 Guide plate, 43 Connecting block, 44 Rack, 45 Gear, 46 Slide bar, 51 Inner arm, 52 Outer arm, 53 Connecting sleeve, 54 Electric cylinder, 55 Rib plate, 61 Support beam, 62 L-shaped bearing plate, 63 L-shaped clamping plate, 64 Baffle, 65 Hydraulic rod. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Please see Figure 1-3 This utility model provides a technical solution for a flange plate flipping device for welding H-beams:

[0026] Example 1:

[0027] according to Figure 1-3 As shown, it includes a support base 1, a high-strength shaft 32, a flange plate placement unit, and two sets of drive components. The two bottom edges of the support base 1 are provided with multiple mounting holes to facilitate the fasteners to pass through the mounting holes and fix the support base 1. The top of the support base 1 is welded and fixed with a mounting plate 2.

[0028] Multiple bearing seats 31 are mounted on the high-strength shaft 32. The bearing seats 31 are fixedly installed on the upper surface of the mounting plate 2. The high-strength shaft 32 is supported by multiple bearing seats 31 to ensure the stability of the high-strength shaft 32 during rotation. The drive assembly includes a hydraulic cylinder 41, a rack 44, and a gear 45 mounted on the high-strength shaft 32. The hydraulic cylinder 41 is fixedly installed on the upper surface of the mounting plate 2. A connecting block 43 is fixedly connected between its piston rod and the rack 44. The rack 44 meshes with the gear 45. By controlling the synchronous extension and retraction of the two hydraulic cylinders 41, the hydraulic cylinder 41 drives the rack 44. The rack 44 meshes with the transmission gear 45, thereby driving the high-strength shaft 32 to rotate.

[0029] A slide bar 46 is fixedly installed at the bottom of the rack 44. Guide plates 42 are respectively provided on the front and rear sides of the slide bar 46. The guide plates 42 are fixedly installed on the upper surface of the mounting plate 2. A guide channel is formed between the two guide plates 42, so that the slide bar 46 and the connecting block 43 can slide in the guide channel, ensuring the smoothness of the movement of the rack 44, thereby ensuring the stability of the rotation of the high-strength shaft 32.

[0030] The flange plate placement unit includes a support beam 61, an L-shaped clamp 63, and N telescopic arm assemblies. In this embodiment, there are three telescopic arm assemblies. The specific number can be adjusted according to the length and weight of the flange plate. Three L-shaped bearing plates 62 for placing the flange plate are welded and fixed on the side of the support beam 61 away from the high-strength shaft 32. A baffle 64 is welded and fixed between two adjacent L-shaped bearing plates 62.

[0031] The L-shaped clamping plate 63 has three rectangular holes that fit the L-shaped support plate 62, allowing the L-shaped clamping plate 63 to slide along the L-shaped support plate 62. At least two hydraulic rods 65 are installed between the L-shaped clamping plate 63 and the support beam 61. By suspending the flange plate on multiple L-shaped support plates 62 and controlling the synchronous contraction of the two hydraulic rods 65, the L-shaped clamping plate 63 slides along the L-shaped support plate 62, thus firmly clamping the flange plate.

[0032] Three telescopic boom assemblies are respectively set for three L-shaped support plates 62. The telescopic boom assembly includes an inner boom 51, an electric cylinder 54, and an outer boom 52 welded and fixed to the side of the L-shaped support plate 62. A connecting sleeve 53 is welded and fixed to one end of the inner boom 51. The connecting sleeve 53 is fitted onto the high-strength shaft 32. The open end of the inner boom 51 is located in the inner cavity of the outer boom 52. The electric cylinder 54 is located in the inner cavity of the inner wall and is fixedly installed between the inner boom 51 and the outer boom 52. By controlling the synchronous extension of the three electric cylinders 54, the electric cylinders 54 drive the L-shaped support plate 62 and the flange plate to move towards the web plate, so that the flange plate contacts the web plate, so that the worker can weld and fix the flange plate to the web plate together.

[0033] In practical use, the flange plate flipping device for welding H-beams of this utility model first uses a crane to suspend the flange plate on multiple L-shaped support plates 62. Then, the synchronous contraction of two hydraulic rods 65 is controlled, so that the L-shaped clamping plate 63 slides along the L-shaped support plate 62 to firmly clamp the flange plate. Then, the synchronous contraction of two hydraulic cylinders 41 is controlled. The hydraulic cylinders 41 drive the rack 44, and the rack 44 meshes with the transmission gear 45, which in turn drives the high-strength shaft 32 and the flange plate placement unit to rotate 90 degrees, so that the flange plate is perpendicular to the web plate. Then, the synchronous extension of three electric cylinders 54 is controlled. The electric cylinders 54 drive the L-shaped support plate 62 and the flange plate to move towards the web plate, so that the flange plate contacts the web plate, so that the workers can weld the flange plate and the web plate together.

[0034] After welding and fixing, control the synchronous extension of the two hydraulic rods 65 to separate the L-shaped clamping plate 63 from the flange plate, control the synchronous retraction of the three electric cylinders 54 to separate the L-shaped bearing plate 62 from the flange plate, and finally control the synchronous extension of the two hydraulic cylinders 41 to rotate the flange plate placement unit 90 degrees and reset it above the support seat 1.

[0035] Example 2:

[0036] Based on Example 1, such as Figure 2 As shown, a rib 55 is welded and fixed between the outer arm 52 and the L-shaped bearing plate 62.

Claims

1. A flange plate flipping device for welding H-beams, comprising a support base, a high-strength shaft, a drive assembly, and a flange plate placement unit, characterized in that: A mounting plate is welded and fixed to the top of the support base; Multiple bearing seats are mounted on the high-strength shaft. The bearing seats are fixedly installed on the upper surface of the mounting plate. The drive assembly is connected to the high-strength shaft and can drive the high-strength shaft to rotate. The flange plate placement unit includes a support beam, an L-shaped clamp, and N telescopic arm assemblies. N L-shaped bearing plates for placing flange plates are welded and fixed on the side of the support beam away from the high-strength shaft. The L-shaped clamp plate has N rectangular holes, which are adapted to the L-shaped support plate, allowing the L-shaped clamp plate to slide along the L-shaped support plate. At least two hydraulic rods are installed between the L-shaped clamp plate and the support beam. N telescopic boom assemblies are respectively set with N L-shaped bearing plates. One end of the telescopic boom assembly is fixedly connected to the high-strength shaft, and the other end is fixedly connected to the L-shaped bearing plate.

2. The flange plate flipping device for H-beam welding according to claim 1, characterized in that: There are two sets of drive components.

3. The flange plate flipping device for H-beam welding according to claim 1 or 2, characterized in that: The drive assembly includes a hydraulic cylinder, a rack, and a gear mounted on a high-strength shaft. The hydraulic cylinder is fixedly mounted on the upper surface of the mounting plate, and a connecting block is fixedly connected between its piston rod and the rack. The rack meshes with the gear.

4. The flange plate flipping device for H-beam welding according to claim 3, characterized in that: A slide bar is fixedly installed at the bottom of the rack, and guide plates are respectively provided on the front and rear sides of the slide bar. The guide plates are fixedly installed on the upper surface of the mounting plate, and a guide channel is formed between the two guide plates, so that the slide bar and the connecting block can slide in the guide channel.

5. The flange plate flipping device for H-beam welding according to claim 1, characterized in that: The telescopic boom assembly includes an inner arm, an electric cylinder, and an outer arm welded and fixed to the side of an L-shaped support plate. A connecting sleeve is welded and fixed to one end of the inner arm, and the connecting sleeve is fitted onto a high-strength shaft. The open end of the inner arm is located in the inner cavity of the outer arm, and the electric cylinder is located in the inner cavity of the inner wall and fixedly installed between the inner arm and the outer arm.

6. The flange plate flipping device for H-beam welding according to claim 5, characterized in that: A rib is welded and fixed between the outer arm and the L-shaped support plate.

7. The flange plate flipping device for H-beam welding according to claim 1, characterized in that: The support base has multiple mounting holes on its two bottom edges.