A pipe welding aid and welding assembly

Abstract

The utility model relates to a kind of pipeline welding auxiliary device and welding assembly, pipeline welding auxiliary device includes arc frame, welding torch rack, moving frame, mounting bracket and base, two ends of arc frame are fixed on the two side walls of base respectively by mounting bracket, arc frame is erected above base, the upper surface of base is formed with a arc-shaped through slot, the central axis of arc-shaped through slot coincides with the central axis of arc frame;Arc-shaped track and arc-shaped rack are equipped on arc frame, arc-shaped track and arc-shaped rack are coincided with the central axis of arc frame, gear is rotatably connected on moving frame, moving frame is slidably connected in arc-shaped track, gear is engaged with arc-shaped rack;Screw limiting hole that is through up and down is set in the middle of gear, screw thread channel that is through up and down is set in moving frame, screw is threadedly connected in screw thread channel, lower end of screw is rotatably connected with welding torch rack, the upper end of screw is equipped with limit block, limit block is adapted with screw limiting hole.

Description

Technical Field

[0001] This utility model relates to the technical field of pipeline welding, specifically to a pipeline welding auxiliary device and welding assembly. Background Technology

[0002] Currently, when using a welding torch to weld the joints of pipes, the pipes are relatively heavy and large, so it is necessary to hold the welding torch by hand and aim it at the joint to weld. This process takes a long time and is labor-intensive. Utility Model Content

[0003] This utility model provides a pipeline welding auxiliary device and welding assembly to solve one or more technical problems existing in the prior art.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: This utility model provides a pipe welding auxiliary device, including an arc-shaped frame, a welding torch placement frame, a movable frame, a mounting frame, and a base. The two ends of the arc-shaped frame are respectively fixed to the two side walls of the base through the mounting frame. The arc-shaped frame is mounted above the base. An arc-shaped through groove is formed on the upper surface of the base. The central axis of the arc-shaped through groove coincides with the central axis of the arc-shaped frame. There are two arc-shaped frames and two movable frames. The two arc-shaped frames are arranged side by side with intervals. Each arc-shaped frame is slidably connected to a movable frame.

[0005] The arc-shaped frame is equipped with an arc-shaped track and an arc-shaped rack, both of which are arranged facing the same side of the arc-shaped frame. The arc-shaped track and the arc-shaped rack are both aligned with the central axis of the arc-shaped frame. A gear is rotatably connected to the movable frame, which is slidably connected within the arc-shaped track. The gear meshes with the arc-shaped rack. A vertically penetrating screw limiting hole is provided in the middle of the gear. A vertically penetrating threaded channel is provided on the movable frame and is coaxially arranged with the screw limiting hole. A screw is threadedly connected within the threaded channel. The lower end of the screw is rotatably connected to the welding torch holder, and a limiting block is provided at the upper end of the screw. The limiting block is adapted to the screw limiting hole and can slide vertically along the screw limiting hole.

[0006] The beneficial effects of this utility model are as follows: The pipe welding auxiliary device of this utility model, through an arc-shaped frame, a welding torch placement frame, a movable frame, a mounting frame, and a base, allows the worker to place the welding torch on the welding torch placement frame during welding and push the movable frame to move along the arc-shaped frame. During the movement of the movable frame, since the screw is threadedly connected to the movable frame, the gear can drive the screw to rotate, and the screw can move up and down in the threaded channel. Thus, the screw drives the welding torch placement frame to move down relative to the movable frame, so that the movement of the welding torch placement frame can be coordinated with the gradually shortening welding rod during welding, thereby enabling the welding torch with the gradually shortening welding rod to weld continuously.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, a limiting sleeve is fixed on the gear, the limiting sleeve is coaxially arranged with the screw limiting hole, and the inner side of the limiting sleeve has the same shape as the screw limiting hole.

[0009] The beneficial effect of adopting the above-mentioned further solution is that by setting a limiting sleeve on the gear, the vertical displacement distance of the screw can be increased.

[0010] Furthermore, both the screw limiting hole and the limiting sleeve are polygonal structures.

[0011] The beneficial effect of adopting the above-mentioned further solution is that both the screw limiting hole and the limiting sleeve are polygonal structures, which can be adapted to the limiting block to drive the screw to rotate.

[0012] Furthermore, the welding torch holder is also provided with a guide post, and the movable frame is provided with a guide hole that runs vertically through it. The guide post can slide vertically within the guide hole.

[0013] The beneficial effect of adopting the above-mentioned further solution is that by setting guide posts on the welding torch holder, the welding torch holder can move stably up and down along the moving frame via the guide posts.

[0014] Furthermore, the two movable frames are located between the two arc-shaped frames, and the two ends of the welding torch placement frame are rotatably connected to the screws on the two movable frames respectively.

[0015] The beneficial effect of adopting the above-mentioned further solution is that by setting two arc-shaped frames and two movable frames, the welding torch holder can be stably installed on the two movable frames and between the two arc-shaped frames, which can drive the welding torch to move stably.

[0016] Furthermore, the arc-shaped racks of the two arc-shaped frames are arranged opposite each other; the arc-shaped tracks of the two arc-shaped frames are arranged opposite each other.

[0017] The beneficial effect of adopting the above-mentioned further solution is that the arc-shaped racks of the two arc-shaped frames are arranged opposite each other, which can clamp the welding gun placement frame, making the assembly of the welding gun placement frame more stable and reliable.

[0018] Furthermore, the mounting frame includes a fixing plate and a connecting rod. The fixing plate is fixed to the side wall of the base. The connecting rod is arranged vertically and its lower end is fixedly connected to the fixing plate. The upper end of the connecting rod is fixed with a vertically extending mounting frame. The two ends of the arc-shaped frame are provided with vertical insertion rods, which are respectively inserted into the corresponding mounting frames.

[0019] The beneficial effect of adopting the above-mentioned further solution is that by setting a fixing plate and a connecting rod, it is convenient to use the connecting rod to connect and fix it with the vertical insertion rod of the arc-shaped frame.

[0020] Furthermore, the mounting frame is fixed to the upper end of the connecting rod by a first bolt, and the mounting frame extends beyond the upper end of the connecting rod by a preset length and is used to fit and limit the vertical insertion rod.

[0021] Furthermore, one end face of the gear is rotatably connected to the upper surface of the movable frame via a bearing, and the welding torch placement frame is horizontally arranged with a welding torch limiting hole in the middle.

[0022] This utility model also provides a welding assembly, including the above-mentioned pipe welding auxiliary device, and further including a welding torch, which is mounted on the welding torch holder.

[0023] The beneficial effects of this utility model are: the welding assembly of this utility model can stably weld pipes, and also allows the movement of the welding torch holder to match the gradually shortening welding rod during welding. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the pipe welding auxiliary device of this utility model;

[0025] Figure 2 for Figure 1 Enlarged structural diagram of section A in the middle;

[0026] Figure 3 This is a cross-sectional structural diagram of the cooperation between the movable frame and the arc-shaped frame of this utility model;

[0027] Figure 4 This is a cross-sectional structural diagram showing the cooperation between the arc-shaped frame and the mounting bracket of this utility model.

[0028] The attached diagram lists the components represented by each number as follows:

[0029] 1. Arc-shaped frame; 11. Arc-shaped track; 12. Arc-shaped rack; 13. Vertical insertion rod;

[0030] 2. Welding torch holder; 21. Guide post; 22. Welding torch limiting hole;

[0031] 3. Moving frame; 31. Gear; 32. Screw limiting hole; 33. Threaded channel; 34. Screw; 35. Limiting block; 36. Limiting sleeve; 37. Guide hole;

[0032] 4. Fixing plate; 41. Connecting rod; 42. Mounting frame; 43. First bolt; 44. Second bolt;

[0033] 5. Base; 51. Arc-shaped through groove. Detailed Implementation

[0034] The principles and features of this utility model are described below. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0035] Example 1

[0036] like Figures 1-4 As shown, a pipe welding auxiliary device according to this embodiment includes an arc-shaped frame 1, a welding torch holder 2, a movable frame 3, a mounting frame, and a base 5. The two ends of the arc-shaped frame 1 are respectively fixed to the two side walls of the base 5 via the mounting frame. The arc-shaped frame 1 is mounted above the base 5. An arc-shaped through groove 51 is formed on the upper surface of the base 5, and the central axis of the arc-shaped through groove 51 coincides with the central axis of the arc-shaped frame 1. There are two arc-shaped frames 1 and two movable frames 3, arranged side-by-side with intervals. Each arc-shaped frame 1 is slidably connected to a movable frame 3. An arc-shaped track 11 and an arc-shaped rack 12 are provided on the arc-shaped frame 1, both the arc-shaped track 11 and the arc-shaped rack 12 facing the same direction as the arc-shaped frame 1. Arranged on one side, the arc-shaped track 11 and the arc-shaped rack 12 are both aligned with the central axis of the arc-shaped frame 1. A gear 31 is rotatably connected to the movable frame 3, which is slidably connected within the arc-shaped track 11. The gear 31 meshes with the arc-shaped rack 12. A vertically penetrating screw limiting hole 32 is provided in the middle of the gear 31. A vertically penetrating threaded channel 33, coaxially arranged with the screw limiting hole 32, is provided on the movable frame 3. A screw 34 is threadedly connected within the threaded channel 33. The lower end of the screw 34 is rotatably connected to the welding torch holder 2, and a limiting block 35 is provided at the upper end of the screw 34. The limiting block 35 is adapted to the screw limiting hole 32 and can slide up and down along the screw limiting hole. In this embodiment, the threaded channel 33 should have a threaded structure adapted to the screw 34. The structure in the figure is for illustrative purposes only.

[0037] like Figures 1-3As shown, in a preferred embodiment, a limiting sleeve 36 is fixed on the gear. The limiting sleeve 36 is coaxially arranged with the screw limiting hole, and the inner surface of the limiting sleeve 36 has the same shape as the screw limiting hole. By providing a limiting sleeve on the gear, the vertical displacement distance of the screw can be increased.

[0038] like Figures 1-3 As shown, in one specific embodiment, both the screw limiting hole and the limiting sleeve 36 are polygonal structures. Since both the screw limiting hole and the limiting sleeve are polygonal, they can be adapted to the limiting block to drive the screw to rotate.

[0039] like Figure 1 and Figure 2 As shown, preferably, the welding torch holder 2 is further provided with guide posts 21, and the movable frame 3 has a through guide hole 37, in which the guide post 21 can slide vertically. By providing guide posts on the welding torch holder, the welding torch holder can move stably up and down along the movable frame via the guide posts. Two guide posts 21 can be provided, with the two guide posts 21 located on both sides of the gear 31 respectively.

[0040] Specifically, one end face of the gear 31 is rotatably connected to the upper surface of the movable frame 3 via a bearing, and the welding torch holder 2 is horizontally arranged with a welding torch limiting hole 22 in the middle. For example, a groove can be provided on the movable frame 3, and a bearing can be embedded in the groove. A circular protrusion can be provided on the side of the gear 31 near the movable frame 3, and the rotation of the gear relative to the movable frame 3 can be achieved by using the circular protrusion to be coaxially fixedly connected with the inner ring or outer ring of the bearing. Of course, the bearing can also be embedded in the gear, and then a protrusion connected to the inner ring or outer ring of the bearing can be provided on the movable frame 3.

[0041] Specifically, the welding torch holder 2 in this embodiment can be made of a horizontal plate, and the guide post 21 in this embodiment is arranged perpendicular to the welding torch holder 2.

[0042] In this embodiment, the arc-shaped frame 1 can be located in the middle of the base 5, which makes it convenient to stably place the two pipes to be welded in the arc-shaped through groove 51 of the arc-shaped frame 1.

[0043] In this embodiment, the arc-shaped frame 1, welding torch holder 2, movable frame 3, mounting frame, and base 5 can all be made of metal. This embodiment can achieve stable movement of the gear 31 along the arc-shaped rack 12 and the movable frame 3 along the arc-shaped track 11 by rationally arranging the structure of the gear 31 and the arc-shaped rack 12.

[0044] The working process of the pipe welding auxiliary device in this embodiment is as follows: two pipe sections to be welded are placed in the arc-shaped through groove of the base for fixing or positioning. The two pipe sections are pressed together, and then the welding torch is fixed on the welding torch holder. The moving frame is pushed to move along the arc-shaped frame. The gear on the moving frame rotates, which drives the screw inside the gear to rotate. The screw rotates and moves downward along the moving frame, thereby driving the welding torch holder downward. This allows the welding torch to move continuously downward as the welding rod shortens, thus achieving continuous alignment with the pipe welding position. In this embodiment, the number of teeth of the gear can be set according to the arc shape of the pipe and the shortening rate of the welding rod, so that during the rotation of the gear, while the welding rod is moving downward, it can continuously press against the pipe welding position.

[0045] The pipe welding auxiliary device of this embodiment includes an arc-shaped frame, a welding torch holder, a movable frame, a mounting frame, and a base. During welding, the operator can place the welding torch on the welding torch holder and push the movable frame to move along the arc-shaped frame. As the movable frame moves, the screw is threadedly connected to the movable frame, and the gear can drive the screw to rotate. The screw can move up and down within the threaded channel, thereby causing the welding torch holder to move downward relative to the movable frame. This allows the movement of the welding torch holder to coordinate with the gradually shortening welding rod during welding, enabling the welding torch with the gradually shortening welding rod to perform welding continuously.

[0046] Example 2

[0047] Based on Example 1, this example provides a preferred solution for stably assembling a welding torch holder. For example... Figure 1 As shown, two movable frames 3 are located between two arc-shaped frames 1, and the two ends of the welding torch placement frame 2 are rotatably connected to the screws 34 on the two movable frames 3 respectively. By setting two arc-shaped frames and two movable frames, the welding torch placement frame can be stably installed on the two movable frames and between the two arc-shaped frames, which can drive the welding torch to move stably.

[0048] like Figure 1 As shown, specifically, the two arc-shaped frames 1 are arranged symmetrically, the arc-shaped racks 12 of the two arc-shaped frames 1 are arranged opposite each other, and the arc-shaped tracks 11 of the two arc-shaped frames 1 are arranged opposite each other. The arc-shaped racks 12 can be set on the outer periphery of the arc-shaped tracks 11. Arranging the arc-shaped racks of the two arc-shaped frames opposite each other can clamp the welding torch holder, making the assembly of the welding torch holder more stable and reliable.

[0049] Example 3

[0050] Based on Embodiment 1 or Embodiment 2, this embodiment provides a preferred solution for the mounting bracket. For example... Figure 1As shown, the mounting frame includes a fixing plate 4 and a connecting rod 41. The fixing plate 4 is fixed to the side wall of the base 5. The connecting rod 41 is vertically arranged and its lower end is fixedly connected to the fixing plate 4. The upper end of the connecting rod 41 is fixed with a vertically extending mounting frame 42. The two ends of the arc-shaped frame 1 are provided with vertical insertion rods 13, which are respectively inserted into the corresponding mounting frames 42. By setting the fixing plate and the connecting rod, it is convenient to connect and fix the connecting rod to the vertical insertion rod of the arc-shaped frame.

[0051] like Figure 4 As shown, specifically, the mounting frame 42 is fixed to the upper end of the connecting rod 41 by the first bolt 43. The mounting frame 42 extends beyond the upper end of the connecting rod 41 by a preset length and is used to fit and limit the vertical insertion rod 13.

[0052] Preferably, when two arc-shaped frames 1 are used, two vertically arranged connecting rods 41 can be fixed on the fixing plate 4, and the fixing plate 4 can be fixed to the two side walls of the base 5 by the second bolts 44.

[0053] Example 4

[0054] This embodiment also provides a welding assembly, including a pipe welding auxiliary device of any of the above embodiments, and further including a welding torch, which is mounted on the welding torch holder 2.

[0055] The welding assembly of this embodiment can perform stable welding on pipes and also allows the movement of the welding torch holder to match the gradually shortening welding rod during welding.

[0056] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "vertical", "horizontal", "inner", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0057] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0058] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0059] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0060] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0061] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A pipe welding aid, characterized in that, The system includes an arc-shaped frame, a welding torch holder, a movable frame, a mounting frame, and a base. The two ends of the arc-shaped frame are fixed to the two side walls of the base via the mounting frame. The arc-shaped frame is mounted above the base. An arc-shaped through groove is formed on the upper surface of the base, and the central axis of the arc-shaped through groove coincides with the central axis of the arc-shaped frame. There are two arc-shaped frames and two movable frames, arranged side-by-side with intervals. Each arc-shaped frame is slidably connected to a movable frame. The arc-shaped frame is equipped with an arc-shaped track and an arc-shaped rack, both of which are arranged facing the same side of the arc-shaped frame. The arc-shaped track and the arc-shaped rack are both aligned with the central axis of the arc-shaped frame. A gear is rotatably connected to the movable frame, which is slidably connected within the arc-shaped track. The gear meshes with the arc-shaped rack. A vertically penetrating screw limiting hole is provided in the middle of the gear. A vertically penetrating threaded channel is provided on the movable frame and is coaxially arranged with the screw limiting hole. A screw is threadedly connected within the threaded channel. The lower end of the screw is rotatably connected to the welding torch holder, and a limiting block is provided at the upper end of the screw. The limiting block is adapted to the screw limiting hole and can slide vertically along the screw limiting hole.

2. The pipe welding aid of claim 1, wherein, A limiting sleeve is fixed on the gear, and the limiting sleeve is arranged coaxially with the limiting hole of the screw. The inner side of the limiting sleeve has the same shape as the limiting hole of the screw.

3. The pipe welding aid of claim 2, wherein, Both the screw limiting hole and the limiting sleeve are polygonal structures.

4. The pipe welding auxiliary device according to claim 1, characterized in that, The welding torch holder is also equipped with a guide post, and the movable frame has a guide hole that runs vertically through it. The guide post can slide vertically within the guide hole.

5. The pipe welding aid of claim 1, wherein, Two movable frames are located between two arc-shaped frames, and the two ends of the welding torch placement frame are rotatably connected to the screws on the two movable frames respectively.

6. The pipe welding aid of claim 5, wherein, The arc-shaped racks of the two arc-shaped frames are arranged opposite each other; the arc-shaped tracks of the two arc-shaped frames are arranged opposite each other.

7. The pipe welding aid of claim 1, wherein, The mounting frame includes a fixing plate and a connecting rod. The fixing plate is fixed to the side wall of the base. The connecting rod is arranged vertically and its lower end is fixedly connected to the fixing plate. The upper end of the connecting rod is fixed with a vertically continuous mounting frame. The two ends of the arc-shaped frame are provided with vertical insertion rods, which are respectively inserted into the corresponding mounting frames.

8. The pipe welding aid of claim 7, wherein, The mounting frame is fixed to the upper end of the connecting rod by a first bolt. The mounting frame extends beyond the upper end of the connecting rod by a preset length and is used to fit and limit the vertical insertion rod.

9. The pipe welding aid of claim 1, wherein, One end face of the gear is rotatably connected to the upper surface of the movable frame via a bearing. The welding torch placement frame is horizontally arranged and has a welding torch limiting hole in the middle.

10. A welding assembly characterized by, The pipe welding auxiliary device according to any one of claims 1 to 9 further includes a welding torch, which is mounted on the welding torch holder.

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