Wall bushing welding tool

Abstract

The utility model belongs to the technical field of wall bushing welding, and discloses a wall bushing welding tool which comprises a base, a first flange positioning seat and second flange positioning seats, the first flange positioning seat and the second flange positioning seats are arranged in parallel, the first flange positioning seat is fixed in the middle of the upper end of the base, and the second flange positioning seats are arranged on the two sides of the first flange positioning seat. The upper end of the first flange positioning base and the upper ends of the two second flange positioning bases are each provided with an arc-shaped limiting groove used for being connected with the lower portion of a flange in a clamped mode. The two second flange positioning seats are slidably connected to the upper end of the base. According to the utility model, the lower parts of the three flanges can be quickly positioned easily, so that the stability of the whole wall bushing during welding is ensured, and the welding quality and the welding efficiency are ensured; and the distance between the two second flange positioning seats and the first flange positioning seat can be adjusted, so that wall bushings of different specifications can be welded.

Description

Technical Field

[0001] This utility model belongs to the field of through-wall sleeve welding technology, and specifically relates to a through-wall sleeve welding fixture. Background Technology

[0002] The installation of air-raid shelter doors involves the use of wall sleeves. The structure of a wall sleeve includes a hollow tube and three flanges fitted over the hollow tube. The three flanges are located at both ends and the middle of the hollow tube. During use, it is necessary to ensure that the three flanges are fixedly connected to the hollow tube. Therefore, the three flanges need to be welded to the outside of the hollow tube in advance to form a stable wall sleeve structure.

[0003] In practice, because the flange is a ring-shaped plate structure and is relatively thin, its stability is not good when it is fitted onto the outside of the hollow pipe and then placed on a horizontal surface for welding. This results in an unstable structure during welding, leading to inconsistent welding quality and a decrease in welding efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a welding fixture for through-wall sleeves to solve the problem of structural instability of through-wall sleeves during welding in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A welding fixture for through-wall sleeves includes a base and parallel first flange positioning seats and second flange positioning seats. The first flange positioning seat is fixed to the middle of the upper end of the base. Second flange positioning seats are provided on both sides of the first flange positioning seat. The upper end of the first flange positioning seat and the upper end of the two second flange positioning seats are provided with arc-shaped limiting grooves for engaging the lower part of the flange. The two second flange positioning seats are slidably connected to the upper end of the base, so as to adjust the distance between each of the two second flange positioning seats and the first flange positioning seat by sliding the two second flange positioning seats on the upper end of the base.

[0007] As a preferred technical solution of this utility model, the upper end of the base is provided with a slide rail extending along its length direction, and the lower end of each second flange positioning seat is fixedly connected with a slider, which is slidably connected to the slide rail.

[0008] As a preferred technical solution of this utility model, there are two slide rails that are parallel to each other, and the lower end of each second flange positioning seat is fixedly connected to two sliders, which are slidably connected to the two slide rails respectively.

[0009] As a preferred technical solution of this utility model, the lower end of the first flange positioning seat is provided with a slide rail clearance hole, and the middle part of the slide rail passes through the slide rail clearance hole.

[0010] As a preferred technical solution of this utility model, bearing seats are installed on the upper ends of the bases on the side of the two second flange positioning seats away from each other. Each second flange positioning seat is threaded with a screw. One end of the screw is rotatably connected to the first flange positioning seat, and the other end of the screw passes through the bearing seat and is rotatably set on the upper end of the base. The other end of the screw is connected to a handle or a drive motor.

[0011] In a preferred embodiment of this invention, one end of the screw is rotatably connected to the first flange positioning seat via a ball bearing; a nut is fixedly connected to the second flange positioning seat, and the middle part of the screw is threadedly connected to the nut.

[0012] As a preferred technical solution of this utility model, a limiting round rod is provided on the second flange positioning seat, and one end of the limiting round rod is fixedly connected to the first flange positioning seat; the limiting round rod is provided with scale marks arranged along its length direction.

[0013] As a preferred technical solution of this utility model, two bearings are installed in the bearing housing, the other end of the screw passes through the inner ring of one bearing in the bearing housing, and the other end of the limiting rod passes through the inner ring of the other bearing in the bearing housing.

[0014] Beneficial effects: By setting arc-shaped limiting grooves at the upper ends of the first flange positioning seat and the two second flange positioning seats, this utility model can easily achieve rapid positioning of the lower part of the three flanges, thereby ensuring the stability of the entire through-wall sleeve during welding. It can ensure welding quality and efficiency as much as possible during welding. The two second flange positioning seats are slidably connected to the upper end of the base, and the distance between the two second flange positioning seats and the first flange positioning seat can be adjusted, thereby enabling welding of through-wall sleeves of different specifications and improving the practicality of this through-wall sleeve welding fixture. Attached Figure Description

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

[0016] Figure 2 This is a cross-sectional view of the present invention;

[0017] Figure 3 This is a schematic diagram of the bearing housing in this utility model.

[0018] In the diagram: 1-base; 2-first flange positioning seat; 3-second flange positioning seat; 4-slide rail; 5-slider; 6-bearing seat; 7-screw; 8-handle; 9-ball bearing; 10-nut; 11-limiting rod; 12-flange. Detailed Implementation

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the description of these embodiments is used to help understand this utility model, but does not constitute a limitation on this utility model.

[0020] Example:

[0021] like Figure 1 , Figure 2 and Figure 3 As shown, this embodiment provides a through-wall sleeve welding fixture, including a base 1 and parallel first flange positioning seats 2 and second flange positioning seats 3. The first flange positioning seat 2 is fixed to the middle of the upper end of the base 1 to ensure its stability. Second flange positioning seats 3 are provided on both sides of the first flange positioning seat 2. Arc-shaped limiting grooves for engaging the lower part of the flange 12 are provided at the upper end of the first flange positioning seat 2 and the upper ends of the two second flange positioning seats 3. The arc-shaped limiting grooves can position the lower part of flanges 12 of different diameters. Thus, through the cooperation of the first flange positioning seat 2 and the two second flange positioning seats 3, three... The positioning of all three flanges 12 ensures the stability of the hollow pipe, eliminating concerns about instability caused by flange 12 moving on the horizontal plane during welding and maximizing welding quality. The two second flange positioning seats 3 are slidably connected to the upper end of the base 1, allowing adjustment of their distance from the first flange positioning seat 2. This ensures the stability of the flanges 12 while allowing adjustment of the positions of the two second flange positioning seats 3 on the base 1, facilitating welding of through-wall sleeves of different specifications.

[0022] This utility model, by setting arc-shaped limiting grooves at the upper ends of the first flange positioning seat 2 and the two second flange positioning seats 3, can easily achieve rapid positioning of the lower part of the three flanges 12, thereby ensuring the stability of the entire through-wall sleeve during welding. It can ensure welding quality and welding efficiency as much as possible during welding. The two second flange positioning seats 3 are slidably connected to the upper end of the base 1, and the distance between the two second flange positioning seats 3 and the first flange positioning seat 2 can be adjusted, thereby enabling welding of through-wall sleeves of different specifications and improving the practicality of this through-wall sleeve welding fixture.

[0023] As a preferred embodiment of this example, it should be further explained that the upper end of the base 1 is provided with a slide rail 4 extending along its length direction, and the lower end of each second flange positioning seat 3 is fixedly connected with a slider 5. The slider 5 is slidably connected to the slide rail 4. In this way, the second flange positioning seat 3 can slide on the upper end of the base 1 through the cooperation of the slider 5 and the slide rail 4, and then the distance between the two second flange positioning seats 3 and the first flange positioning seat 2 can be adjusted by sliding the two second flange positioning seats 3 on the upper end of the base 1.

[0024] As a preferred embodiment of this invention, it should be further explained that two parallel slide rails 4 are provided, and two sliders 5 are fixedly connected to the lower end of each second flange positioning seat 3. The two sliders 5 are slidably connected to the two slide rails 4 respectively. Through the cooperation of the two slide rails 4, the second flange positioning seat 3 can be made more stable when sliding. Preferably, as Figure 1 As shown, the second flange positioning seat 3 has an inverted T-shaped structure, that is, the lower part of the second flange positioning seat 3 is provided with a horizontal part. This allows the second flange positioning seat 3 to be connected to the two sliders 5 through the horizontal part, making the second flange positioning seat 3 more stably connected to the two sliders 5. The horizontal part can also be easily connected to the sliders 5 by bolts, making the connection easier and simpler.

[0025] As a preferred embodiment of this example, it should be further explained that the lower end of the first flange positioning seat 2 is provided with a slide rail clearance hole, and the middle part of the slide rail 4 passes through the slide rail clearance hole. In this way, only one or two slide rails 4 are needed. The simple number of slide rails 4 makes the installation of the slide rails 4 easier. At the same time, it is also easier to ensure that the first flange positioning seat 2 and the two second flange positioning seats 3 remain parallel during installation.

[0026] As a preferred embodiment of this invention, it should be further explained that bearing seats 6 are installed on the upper ends of the base 1 on the side of each of the two second flange positioning seats 3 furthest from each other. Each second flange positioning seat 3 is threadedly connected to a screw 7. One end of the screw 7 is rotatably connected to the first flange positioning seat 2, ensuring the flexibility of the screw 7. The other end of the screw 7 passes through the bearing seat 6 and is rotatably mounted on the upper end of the base 1. This allows the bearing seat 6 to enhance the stability of the screw 7. Furthermore, the other end of the screw 7 is connected to a handle 8 or a drive motor, facilitating the rotation of the screw 7 via the handle 8 or drive motor. The rotation of the screw 7 drives the second flange positioning seat 3 to slide on the upper end of the base 1, thereby adjusting the distance between the second flange positioning seat 3 and the first flange positioning seat 2. Simultaneously, the threaded connection between the screw 7 and the second flange positioning seat 3 also makes the second flange positioning seat 3 more stable during welding.

[0027] As a preferred embodiment of this invention, it should be further explained that one end of the screw 7 is rotatably connected to the first flange positioning seat 2 via a ball bearing 9. The outer ring of the ball bearing 9 is fixedly connected to the first flange positioning seat 2, and the inner ring of the ball bearing 9 is fixedly connected to one end of the screw 7. A nut 10 is fixedly connected to the second flange positioning seat 3, and the middle part of the screw 7 is threadedly connected to the nut 10. The nut 10 can be regarded as part of the second flange positioning seat 3. Thus, through the threaded connection between the nut and the screw 7, the screw 7 can more stably drive the second flange positioning seat 3 to move when rotating.

[0028] As a preferred embodiment of this invention, it should be further explained that a limiting rod 11 is provided on the second flange positioning seat 3. One end of the limiting rod 11 is fixedly connected to the first flange positioning seat 2. The limiting rod 11 can also limit the second flange positioning seat 3, so that the second flange positioning seat 3 can slide more stably on the base 1. The limiting rod 11 is provided with scale marks along its length. When adjusting the position of the second flange positioning seat 3, the scale marks on the limiting rod 11 can be used to visually determine whether the adjustment is in place.

[0029] As a preferred embodiment of this practice, it should be further explained that, as Figure 3 As shown, two bearings are installed in the bearing housing 6. The other end of the screw 7 passes through the inner ring of one bearing in the bearing housing 6, and the other end of the limiting rod 11 passes through the inner ring of the other bearing in the bearing housing 6. Thus, the stability of the screw 7 and the limiting rod 11 can be improved simultaneously through the bearing housing 6.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A bushing welding fixture, characterized by, The system includes a base (1) and a first flange positioning seat (2) and a second flange positioning seat (3) arranged in parallel. The first flange positioning seat (2) is fixed to the middle of the upper end of the base (1). The second flange positioning seats (3) are provided on both sides of the first flange positioning seat (2). The upper end of the first flange positioning seat (2) and the upper end of the two second flange positioning seats (3) are provided with arc-shaped limiting grooves for engaging the lower part of the flange (12). The two second flange positioning seats (3) are slidably connected to the upper end of the base (1) to adjust the distance between themselves and the first flange positioning seat (2) by sliding the two second flange positioning seats (3) on the upper end of the base (1).

2. A bushing welding fixture according to claim 1, wherein The upper end of the base (1) is provided with a slide rail (4) extending along its length direction, and the lower end of each second flange positioning seat (3) is fixedly connected with a slider (5), which is slidably connected to the slide rail (4).

3. A bushing welding fixture according to claim 2, wherein The slide rail (4) is provided in two parallel sections. The lower end of each second flange positioning seat (3) is fixedly connected to two sliders (5), and the two sliders (5) are slidably connected to the two slide rails (4) respectively.

4. A wall bushing welding fixture according to claim 2 or 3, characterized in that The lower end of the first flange positioning seat (2) is provided with a slide rail clearance hole, and the middle part of the slide rail (4) passes through the slide rail clearance hole.

5. A bushing welding fixture according to any one of claims 1-3, wherein, Two second flange positioning seats (3) are each mounted with a bearing seat (6) on the upper end of the base (1) on the side away from each other. Each second flange positioning seat (3) is threaded with a screw (7). One end of the screw (7) is rotatably connected to the first flange positioning seat (2), and the other end of the screw (7) passes through the bearing seat (6) and is rotatably set on the upper end of the base (1). The other end of the screw (7) is connected to a handle (8) or a drive motor.

6. A bushing welding fixture according to claim 5, wherein, One end of the screw (7) is rotatably connected to the first flange positioning seat (2) via a ball bearing (9); a nut (10) is fixedly connected to the second flange positioning seat (3), and the middle part of the screw (7) is threadedly connected to the nut (10).

7. A bushing welding fixture as defined in claim 5 wherein, A limiting rod (11) is provided on the second flange positioning seat (3), and one end of the limiting rod (11) is fixedly connected to the first flange positioning seat (2); the limiting rod (11) is provided with scale marks along its length.

8. A bushing welding fixture according to claim 7, wherein, Two bearings are installed in the bearing housing (6). The other end of the screw (7) passes through the inner ring of one bearing in the bearing housing (6), and the other end of the limiting rod (11) passes through the inner ring of the other bearing in the bearing housing (6).

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