Elevation angle welding auxiliary device

Abstract

The utility model relates to an elevation angle welding auxiliary device which comprises a roller carrier and an auxiliary platform, the auxiliary platform is located above the roller carrier, the first end of the roller carrier is hinged to a working face, a telescopic element hinged to the roller carrier is arranged in the middle of the roller carrier, and the second end of the roller carrier is hinged to the second end of the auxiliary platform. An upper connecting rod hinged to the auxiliary platform is arranged at the first end of the auxiliary platform, the middle of the upper connecting rod is hinged to the roller carrier, the bottom of the upper connecting rod is hinged to a lower connecting rod, and the bottom of the lower connecting rod is hinged to the working face. Meanwhile, certain safety risks exist, and the stability and continuity of the whole welding work are affected.

Description

Technical Field

[0001] This utility model belongs to the technical field of welding auxiliary equipment, and specifically relates to an overhead angle welding auxiliary device. Background Technology

[0002] In modern welding production, high-quality welding operations not only rely on high-performance welding equipment, appropriately matched welding materials, and scientifically optimized welding processes, but also require well-equipped and highly adaptable welding fixtures. These fixtures play a crucial role in improving welding efficiency, reducing the labor intensity of operators, and ensuring welding quality.

[0003] For large cylindrical workpieces, circumferential welding is typically used for butt joints. However, if the workpiece remains in a fixed position throughout the welding process, welding the top area becomes extremely difficult. This requires complex welding postures, such as vertical or overhead welding, and the weld quality is hard to guarantee, resulting in high labor intensity and significant safety hazards. To address these issues, the common practice is to place the workpiece on a welding roller frame. The rotation of the rollers causes the workpiece to rotate synchronously, keeping the area to be welded at a convenient bottom position, effectively avoiding the inconveniences of vertical and overhead welding, significantly reducing construction difficulty, and improving the safety and operability of the welding operation. However, in practical applications, when the welding roller frame is tilted due to working conditions, several shortcomings remain. For example, the operator's welding posture is restricted in the tilted position, welding efficiency decreases, and certain safety risks exist, affecting the stability and continuity of the overall welding work. Utility Model Content

[0004] In view of the shortcomings of existing technologies, an overhead welding auxiliary device is proposed to solve the technical problems of the existing technology, which restricts the welding posture of operators, reduces welding efficiency, and poses certain safety risks, affecting the stability and continuity of the overall welding work due to the tilt of the welding roller frame.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An overhead welding auxiliary device includes a roller frame and an auxiliary platform. The auxiliary platform is located above the roller frame. A first end of the roller frame is hinged to a working surface, and a telescopic element is provided in its middle portion and hinged thereto. The second end of the roller frame is hinged to the second end of the auxiliary platform. An upper connecting rod is provided in the first end of the auxiliary platform and hinged thereto. The middle portion of the upper connecting rod is hinged to the roller frame, and the bottom of the upper connecting rod is hinged to a lower connecting rod. The bottom of the lower connecting rod is hinged to the working surface.

[0007] The technical solution is further configured such that the hinge point between the roller frame and the auxiliary platform is the first hinge point, the hinge point between the upper connecting rod and the auxiliary platform is the second hinge point, and the hinge point between the upper connecting rod and the roller frame is located between the first hinge point and the second hinge point.

[0008] The technical solution is further configured such that a connecting shaft is provided on the roller frame, the connecting shaft passes through the upper connecting rod, and is rotatably connected to the upper connecting rod.

[0009] The technical solution is further configured such that a lower connecting rod seat is provided at the bottom of the lower connecting rod and is hinged thereto, and the lower connecting rod seat is fixedly connected to the working surface.

[0010] The technical solution is further configured such that a platform connecting seat is provided on the lower surface of the auxiliary platform, and a connecting ear is provided at the second end of the roller frame, and the connecting ear is rotatably connected to the platform connecting seat through a rotating shaft.

[0011] The technical solution is further configured such that the length of the lower connecting rod is greater than the length of the upper connecting rod, and the hinge point between the lower connecting rod and the working surface is located between the first end of the roller frame and the middle of the roller frame.

[0012] The technical solution is further configured such that the roller frame includes a support frame, two crossbeams and a roller assembly. The two crossbeams are arranged parallel to each other and spaced apart above the support frame. Each crossbeam is provided with a roller assembly. The support frame is hinged to the auxiliary platform and the upper connecting rod respectively.

[0013] The technical solution is further configured such that the roller group includes two rollers spaced apart, and the relative position of at least one roller with respect to the crossbeam is adjustable.

[0014] The beneficial effects of this utility model are:

[0015] The upper and lower connecting rods, auxiliary platform, and roller frame are integrated into a single unit using a hinged design. The auxiliary platform and roller frame share a telescopic element, eliminating the need for additional power components. Furthermore, the auxiliary platform and roller frame are detachable, facilitating installation and operation. During operation, the auxiliary platform maintains a horizontal position and does not change with the tilt angle of the roller frame. Welders can freely change their welding posture on the auxiliary platform, improving welding efficiency and quality, and ensuring the stability and continuity of the welding work. The symmetrical structure enhances overall safety. Attached Figure Description

[0016] Figure 1 This is an isometric view of the overhead welding auxiliary device in an embodiment of this utility model;

[0017] Figure 2This is a top view of the overhead welding auxiliary device in an embodiment of this utility model;

[0018] Figure 3 This is a side view of the overhead welding auxiliary device in an embodiment of this utility model;

[0019] Figure 4 This is a front view of the overhead welding auxiliary device in an embodiment of this utility model;

[0020] Figure 5 yes Figure 4 Sectional view of AA.

[0021] In the attached diagram: 1. Support frame; 2. Crossbeam; 3. Auxiliary platform; 4. Upper connecting rod; 5. Lower connecting rod; 6. Telescopic element; 7. First support frame connecting seat; 8. Second support frame connecting seat; 9. Working surface connecting seat; 10. Driving roller; 11. Driven roller; 12. Slot; 13. Drive motor; 14. Driven roller bracket; 15. Connecting shaft; 16. Locking bolt; 17. Lower connecting rod seat; 18. Through hole. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Based on the embodiments in this application, other similar embodiments obtained by those skilled in the art without creative effort should all fall within the scope of protection of this application. Furthermore, directional terms mentioned in the following embodiments, such as "up," "down," "left," and "right," are only for reference to the directions in the accompanying drawings; therefore, the directional terms used are for illustrative purposes and not for limiting the invention.

[0023] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0024] Example 1

[0025] According to an embodiment of this utility model, an overhead welding auxiliary device is provided. Please refer to [link / reference]. Figures 1 to 5 It includes a roller frame and an auxiliary platform 3. The auxiliary platform 3 is located above the roller frame. The first end of the roller frame is hinged to the working surface. A telescopic element 6 is provided in the middle of the roller frame and is hinged to it. The second end of the roller frame is hinged to the second end of the auxiliary platform 3. The first end of the auxiliary platform 3 is provided with an upper connecting rod 4 that is hinged to it. The middle part of the upper connecting rod 4 is hinged to the roller frame. The bottom of the upper connecting rod 4 is hinged to the lower connecting rod 5. The bottom of the lower connecting rod 5 is hinged to the working surface.

[0026] Specifically, the roller frame includes a support frame 1, two crossbeams 2, and a roller assembly. The support frame 1 is a frame structure, welded from multiple steel pipes to form a stable support structure. A first support frame connecting seat 7 is provided at the first end of the support frame 1, and a working surface connecting seat 9 is provided on the working surface. The first support frame connecting seat 7 and the working surface connecting seat 9 are hinged together. Both the first support frame connecting seat 7 and the working surface connecting seat 9 are made of high-strength alloy material to ensure the stability and durability of the hinge point. The support frame 1 has a second support frame connecting seat 8 in the middle, which is hinged to the telescopic element 6. The angle between the roller frame and the working surface can be adjusted by controlling the extension and retraction of the telescopic element 6. The upper connecting rod 4, lower connecting rod 5, auxiliary platform 3 and roller frame are combined into one unit by using the hinge. The auxiliary platform 3 and roller frame share the telescopic element 6, which does not require an additional power component. At the same time, the auxiliary platform 3 and roller frame are detachable, making installation and operation convenient. During the operation, the auxiliary platform 3 always maintains a horizontal posture and will not change with the tilt angle of the roller frame. Welders can change their welding posture at will when performing welding operations on the auxiliary platform, which helps to improve welding efficiency and welding quality, and ensures the stability and continuity of welding work. The first support frame connecting seat 7, the second support frame connecting seat 8, the working surface connecting seat 9, the upper connecting rod 4 and the lower connecting rod 5 are all symmetrically arranged, adopting a symmetrical structure, which enhances overall safety.

[0027] Preferably, the telescopic element 6 is a hydraulic cylinder, the cylinder body of which is connected to the working surface, and the end of the piston rod is hinged to the second support frame connecting seat 8.

[0028] Specifically, a support column is provided below the second end of the support frame 1. The support column is fixedly connected to the working surface. In the initial state, the second end of the support frame 1 abuts against the top of the support column, which enhances the stability of the entire device.

[0029] Furthermore, two parallel and spaced-apart crossbeams 2 are positioned above the support frame 1. The crossbeams 2 are made of I-beam steel, providing high load-bearing capacity. The crossbeams 2 are detachably connected to the support frame 1 via bolts, and the spacing between them can be adjusted as needed. Each crossbeam 2 is equipped with a roller assembly, consisting of two spaced-apart rollers made of wear-resistant rubber coated with polyurethane to improve friction and service life. At least one roller's relative position to the crossbeam 2 is adjustable, allowing for the adaptation to cylindrical workpieces of different diameters.

[0030] Specifically, the two rollers are a driving roller 10 and a driven roller 11. The driving roller 10 is connected to the drive motor 13 and is rotatably mounted on the driving roller bracket. The driven roller 11 is rotatably mounted on the driven roller bracket 14. The crossbeam 2 has a slot 12, and the driven roller bracket 14 is inserted into the slot 12 and can slide along the slot 12. At the same time, the crossbeam 2 has several through holes 18 along its length. After the driven roller bracket 14 slides into place, the locking bolt 16 passes through the through holes 18 and the driven roller bracket 14 to achieve locking.

[0031] Furthermore, the auxiliary platform 3 is a rectangular flat plate structure with an anti-slip surface treatment to increase safety during operation. A platform connecting seat is provided on the lower surface of the auxiliary platform 3. The platform connecting seat has a U-shaped structure, and a connecting ear is provided at the second end of the roller frame. The connecting ear is a plate-like structure and is welded and fixed to the support frame 1. The connecting ear and the platform connecting seat are rotatably connected via a rotating shaft made of high-strength alloy steel, with anti-detachment devices at both ends to ensure reliable connection.

[0032] Furthermore, the upper connecting rod 4 is a rod-shaped structure with high strength and rigidity. The hinge point between the upper connecting rod 4 and the auxiliary platform 3 serves as the second hinge point, using a pin connection with cotter pins at both ends to prevent detachment. The middle part of the upper connecting rod 4 is hinged to the roller frame, which has a connecting shaft 15 that passes through and is rotatably connected to the upper connecting rod 4. The connecting shaft 15 is made of high-strength alloy steel with a hardened surface to improve wear resistance. The hinge point between the roller frame and the auxiliary platform 3 serves as the first hinge point, and the hinge point between the upper connecting rod 4 and the roller frame is located between the first and second hinge points, enhancing the stability of the entire mechanism.

[0033] Furthermore, the lower connecting rod 5 is also a rod-shaped structure, made of the same alloy steel material as the upper connecting rod 4. The length of the lower connecting rod 5 is greater than the length of the upper connecting rod 4. Preferably, the length of the lower connecting rod 5 is about 1.5 times the length of the upper connecting rod 4. This design allows for a larger adjustment range and a smoother movement trajectory when adjusting the height of the auxiliary platform 3. The bottom of the lower connecting rod 5 is provided with a lower connecting rod seat 17 that is hinged to it. The lower connecting rod seat 17 has a U-shaped structure, providing high strength and stability. The lower connecting rod seat 17 is fixedly connected to the working surface, securely fixed to the working surface by expansion bolts or welding. The hinge point between the lower connecting rod 5 and the working surface is located between the first end of the roller frame and the middle of the roller frame. This layout ensures that the entire mechanism forms a stable structure during operation, effectively preventing the device from shaking or tilting during use.

[0034] In use, the cylindrical workpiece to be welded is placed on the roller assembly. The cylindrical workpiece can rotate freely on the rollers, making it easy for the operator to adjust the welding position. By controlling the extension and retraction of the telescopic element 6, the angle between the roller frame and the working surface can be changed. During this process, the included angle between the upper connecting rod 4 and the lower connecting rod 5 increases or decreases, effectively compensating for the tilt of the roller frame and ensuring that the auxiliary platform 3 remains horizontal. This allows the operator to perform overhead welding operations in the most comfortable posture. In other words, the linkage mechanism composed of the upper connecting rod 4 and the lower connecting rod 5 ensures that the auxiliary platform 3 maintains a relatively stable angle during lifting and lowering, improving welding accuracy and safety.

[0035] When it is necessary to change cylindrical workpieces of different diameters, the position of the adjustable rollers in the roller assembly can be adjusted to accommodate cylindrical workpieces of different sizes. The entire device has a compact structure, occupies little space, and the connections between all components are hinged, facilitating disassembly, assembly, and transportation.

[0036] Example 2

[0037] Based on Embodiment 1, the surface of the auxiliary platform 3 is provided with an anti-slip mat made of rubber material with raised patterns to increase friction. Additionally, the edges of the auxiliary platform 3 can be fitted with guardrails to prevent items from slipping off, thus improving work safety.

[0038] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0039] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be repeated here.

[0040] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0041] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0042] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. An angle welding assist device characterized by comprising: The system includes a roller frame and an auxiliary platform. The auxiliary platform is located above the roller frame. The first end of the roller frame is hinged to the working surface, and a telescopic element is provided in its middle part and hinged thereto. The second end of the roller frame is hinged to the second end of the auxiliary platform. The first end of the auxiliary platform is provided with an upper connecting rod hinged thereto. The middle part of the upper connecting rod is hinged to the roller frame, and the bottom of the upper connecting rod is hinged to a lower connecting rod. The bottom of the lower connecting rod is hinged to the working surface.

2. The welding position assist device of claim 1, wherein The hinge point between the roller frame and the auxiliary platform is designated as the first hinge point, and the hinge point between the upper connecting rod and the auxiliary platform is designated as the second hinge point. The hinge point between the upper connecting rod and the roller frame is located between the first hinge point and the second hinge point.

3. The welding position assist device of claim 2, wherein, The roller frame is provided with a connecting shaft, which passes through the upper connecting rod and is rotatably connected to the upper connecting rod.

4. The welding position assist device of claim 1, wherein, The bottom of the lower connecting rod is provided with a lower connecting rod seat that is hinged thereto, and the lower connecting rod seat is fixedly connected to the working surface.

5. The positional welding aid of claim 1, wherein, The lower surface of the auxiliary platform is provided with a platform connecting seat, and the second end of the roller frame is provided with a connecting ear. The connecting ear and the platform connecting seat are rotatably connected by a rotating shaft.

6. The welding position assist device of claim 1 or 4, wherein The length of the lower connecting rod is greater than the length of the upper connecting rod, and the hinge point between the lower connecting rod and the working surface is located between the first end of the roller frame and the middle of the roller frame.

7. The positional welding aid of claim 1, wherein, The roller frame includes a support frame, two crossbeams, and roller sets. The two crossbeams are arranged parallel to each other and spaced apart above the support frame. Each crossbeam is equipped with a roller set. The support frame is hinged to the auxiliary platform and the upper connecting rod, respectively.

8. The welding position assist device of claim 7, wherein, The roller assembly includes two rollers spaced apart, and the relative position of at least one roller with respect to the crossbeam is adjustable.

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