Adjustable elbow flange welding tool

Abstract

The utility model discloses an adjustable elbow flange welding tool, including bottom plate, the support block one / two of sliding installation along X / Y direction and fixed side plate one / two. The upper end of support block is equipped with V -shaped groove, and the sliding fit with bottom plate through T -shaped guide rail, to adapt to the elbow of different length and realize vertical and horizontal positioning, and the fixed side plate is fixed through the positioning hole and bolt flange, and the position adjustment is realized to the cooperation of bottom T -shaped guide groove and guide rail, and is locked through locking screw. For different diameter elbow, the fixed side plate adopts split type design, is composed of U -shaped plate and slide plate, and the slide plate is perpendicular to slide through sliding convex and U -shaped plate recess, and the height of flange plate is adjusted to match the elbow center axis. The tool passes through modularization sliding structure, V -shaped groove positioning and split type side plate design, solves the problem of poor adaptability, low precision of traditional tool, significantly promotes welding efficiency and quality, and the quick clamping of compatible multi -specification elbow flange reduces production cost.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, specifically to an adjustable welding fixture for bent pipe flanges. Background Technology

[0002] In the field of pipeline engineering, the welding of bends and flanges is a critical process in connecting pipeline systems. Traditional welding fixtures are mostly fixed structures, only suitable for bends of specific specifications (such as fixed diameter, bending angle, or length). This forces companies to frequently change or customize special fixtures when producing products of different specifications, increasing equipment costs and extending production cycles. Furthermore, traditional fixtures lack sufficient clamping and positioning accuracy for bends, easily leading to welding misalignment and deformation, affecting sealing performance and structural strength. With the increasing demand for diversified pipeline systems in fields such as petrochemicals and shipbuilding, there is an urgent need for flexible welding fixtures that can quickly adapt to bends of different specifications to improve welding efficiency, reduce overall costs, and meet the needs of multi-variety, small-batch production. Utility Model Content

[0003] The purpose of this utility model is to provide an adjustable pipe flange welding fixture, which aims to overcome the defects of the existing technology and solve the problem of frequent replacement or customization of special fixtures for products of different specifications.

[0004] Therefore, this utility model proposes an adjustable welding fixture for pipe bend flanges, comprising:

[0005] The base plate is equipped with two mutually perpendicular T-shaped guide rails, one first and one second.

[0006] Support block one and support block two are slidably installed along the X and Y directions of the base plate, respectively. The upper ends of support block one and support block two are provided with V-shaped grooves for supporting the bent pipe, and the V-shaped grooves are tangent to the outer circle of the bent pipe to achieve vertical and horizontal positioning.

[0007] Fixed side plate one and fixed side plate two are slidably installed along the X and Y directions of the base plate, respectively. The upper ends of fixed side plate one and fixed side plate two are provided with several positioning holes, and are fixedly connected to flange one or flange two by bolts.

[0008] The bottom of each of the support block one, support block two, fixed side plate one, and fixed side plate two is provided with a T-shaped guide groove that slides with T-shaped guide rail one or T-shaped guide rail two to achieve horizontal position adjustment of each component on the base plate.

[0009] As a preferred technical solution of this application, the inner surface of the V-shaped groove of the support block one and the support block two is provided with a wear-resistant pad.

[0010] As a preferred technical solution of this application, the bottom sides of the first fixed side plate and the second fixed side plate are provided with threaded through holes, and locking screws are installed in the threaded through holes.

[0011] As a preferred technical solution of this application, the upper side surfaces of the first fixed side plate and the second fixed side plate are provided with positioning protrusions, which cooperate with the inner circumferential surface of the flange to achieve radial positioning of the flange.

[0012] As a preferred technical solution of this application, the fixed side plate one and the fixed side plate two are a split structure, including a U-shaped plate and a sliding plate that are vertically slidably fitted. The vertical position of the sliding plate can be adjusted to adapt to the flange height of bends of different diameters.

[0013] As a preferred technical solution of this application, the sliding plate slides vertically with the groove inside the U-shaped plate through the sliding protrusion on the side.

[0014] As a preferred technical solution of this application, a scale is provided between the skateboard and the U-shaped plate to quantify the vertical displacement of the skateboard in order to accurately match the center height of the bend.

[0015] The adjustable elbow flange welding fixture provided by this utility model solves the problems of poor adaptability and low precision of traditional fixtures through modular sliding structure, V-groove positioning and split side plate design, significantly improves welding efficiency and quality, is compatible with the quick clamping of elbow flanges of various specifications, and reduces production costs.

[0016] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 This is a structural schematic diagram of the adjustable elbow flange welding fixture of this utility model;

[0019] Figure 2 This is a schematic diagram of the sliding plate in the adjustable elbow flange welding fixture of this utility model.

[0020] Figure 3 This is a schematic diagram of the support block 1 in the adjustable elbow flange welding fixture of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Base plate; 2. Support block one; 3. Fixed side plate one; 4. Support block two; 5. Fixed side plate two; 6. Bend flange assembly; 11. T-shaped guide rail one; 12. T-shaped guide rail two; 21. V-groove; 22. T-shaped guide groove; 31. U-shaped plate; 32. Slide plate; 321. Positioning hole; 322. Positioning protrusion; 323. Sliding protrusion; 33. Locking screw; 61. Bend; 62. Flange one; 63. Flange two. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] like Figures 1-3 As shown, the adjustable elbow flange welding fixture of this utility model includes: a base plate 1, a first support block 2, a first fixed side plate 3, a second support block 4, and a second fixed side plate 5; the first support block 2 and the second support block 4 are used to support the elbow 61 of the elbow flange assembly 6, and the first fixed side plate 3 and the second fixed side plate 5 are used to fix the first flange 62 and the second flange 63 of the elbow flange assembly 6, respectively; wherein, the first support block 2 and the first fixed side plate 3 are slidably installed on the base plate 1 along the X direction, and the second support block 4 and the second fixed side plate 5 are slidably installed on the base plate 1 along the Y direction, so as to adapt to the welding and fixing of elbows 61 of different lengths and specifications to flanges.

[0024] Specifically, V-shaped grooves 21 are provided on the upper ends of support blocks 2 and 4 to accommodate bent pipes 61. The V-shaped grooves 21 are tangent to the outer circumference of the bent pipe 61, providing vertical and horizontal positioning. Meanwhile, T-shaped guide grooves 22 are provided at the bottom of support blocks 2 and 4, respectively. T-shaped guide rails 11 and 12, perpendicular to each other, are provided on the upper end of the base plate 1. The T-shaped guide rails 11 and 12 cooperate with the T-shaped guide grooves 22 to allow support blocks 2 and 4 to slide horizontally on the base plate 1, accommodating bent pipes 61 of different lengths. The inner surface of the V-shaped grooves 21 is lined with wear-resistant pads, which provide both wear resistance and anti-slip properties.

[0025] The upper ends of the fixed side plate 3 and the fixed side plate 5 are provided with several positioning holes 321. By inserting bolts into the positioning holes 321, the flange 62 is fixed on the fixed side plate 3 and the flange 63 is fixed on the fixed side plate 5. At the same time, the bottom of the fixed side plate 3 and the fixed side plate 5 are also provided with T-shaped guide grooves 22, which slide with the T-shaped guide rails 11 and 12, so that the flange 62 and the flange 63 can be quickly moved to the position corresponding to the bend 61.

[0026] Among them, the bottom side of the fixed side plate 1 3 and the fixed side plate 2 5 are provided with threaded through holes, and locking screws 33 are installed in the threaded through holes. The locking screws 33 are used to press against the T-shaped guide rail 1 11 and the T-shaped guide rail 2 12 to fix the fixed side plate 1 3 and the fixed side plate 2 5 horizontally, thereby positioning the flange 1 62 and the flange 2 63.

[0027] In addition, the upper side of the fixed side plate 3 and the fixed side plate 5 are provided with positioning protrusions 322 that are compatible with the inner circumferential surface of the flange 62 or the flange 63. By cooperating with the inner circumferential surface of the flange 62 or the flange 63, the flange 62 or the flange 63 can be radially positioned, and then circumferential positioning can be achieved by the bolts cooperating with the positioning holes 321.

[0028] In another embodiment, such as Figure 3 As shown, support block 1 2 and support block 2 4 can support bends 61 of different diameters. The bends 61 of different diameters are placed in the V-groove 21, and the distance between their central axis and the upper surface of the bottom plate changes. In order to adapt the flanges fixed on the fixed side plate 1 3 or fixed side plate 2 5 to the height of the bends 61 of different diameters, the fixed side plate 1 3 and fixed side plate 2 5 are set as a split structure. The main structure is a U-shaped plate 31. A sliding plate 32 is installed inside the U-shaped plate 31, and the side of the sliding plate 32 is provided with a sliding protrusion 323. The sliding protrusion 323 slides and engages with the groove inside the U-shaped plate 31 in the vertical direction. By moving the sliding plate 32 up and down, the positioning hole 321 set on the sliding plate 32 is fixed with the flange 1 62 and flange 2 63.

[0029] The sliding plate 32 and the U-shaped plate 31 are provided with a scale to quantify the vertical displacement of the sliding plate 32 so as to accurately match the center height of the bend 61.

[0030] The working principle and process of the adjustable pipe flange welding fixture of this utility model are briefly described below.

[0031] In use, first place the bend 61 into the V-groove 21 of support block 1 2 and support block 2 4, achieving vertical and horizontal positioning by the V-groove being tangent to the outer circle of the bend. According to the required bend length, slide support block 1 2 and support block 2 4 along the X / Y direction of the base plate 1 to the appropriate position. Then, align flange 1 62 and flange 2 63 with fixed side plate 1 3 and fixed side plate 2 5 respectively: radial positioning is achieved by embedding the positioning protrusion 322 into the inner circumferential surface of the flange, and circumferential fixing is achieved by bolts inserted into the positioning holes 321.

[0032] For bends of different diameters, adjust the vertical position of the split sliding plate 32 of the fixed side plate to align the center height of the flange with the axis of the bend. Then, tighten the locking screws 33 to secure the T-shaped guide groove 22 at the bottom of the side plate to the guide rail. Finally, after confirming the coaxiality of the bend and the flange, welding is performed. After completion, loosen the locking screws, and the workpiece can be quickly disassembled by sliding the components. The entire process utilizes a modular sliding structure and a split adjustment design to achieve efficient positioning and welding of bend flanges of various specifications.

[0033] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An adjustable elbow flange welding fixture, characterized by, include: The base plate (1) is provided with mutually perpendicular T-shaped guide rail one (11) and T-shaped guide rail two (12). Support block one (2) and support block two (4) are slidably installed along the X and Y directions of the base plate (1), respectively. The upper ends of support block one (2) and support block two (4) are provided with V-shaped grooves (21) for supporting the bent pipe (61), and the V-shaped grooves (21) are tangent to the outer circle of the bent pipe (61) to achieve vertical and horizontal positioning. Fixed side plate one (3) and fixed side plate two (5) are slidably installed along the X and Y directions of the base plate (1), respectively. The upper ends of fixed side plate one (3) and fixed side plate two (5) are provided with a number of positioning holes (321), which are fixedly connected to flange one (62) or flange two (63) by bolts. The bottom of each of the support block 1 (2), support block 2 (4), fixed side plate 1 (3) and fixed side plate 2 (5) is provided with a T-shaped guide groove (22) that slides with T-shaped guide rail 1 (11) or T-shaped guide rail 2 (12) to realize the horizontal position adjustment of each component on the base plate (1).

2. The adjustable elbow flange welding fixture of claim 1, wherein, The inner surface of the V-groove (21) of the support block one (2) and support block two (4) is provided with wear-resistant pads.

3. The adjustable pipe bend flange welding fixture according to claim 1, characterized in that, The bottom sides of the fixed side plate 1 (3) and fixed side plate 2 (5) are provided with threaded through holes, and locking screws (33) are installed in the threaded through holes.

4. The adjustable pipe bend flange welding fixture according to claim 1, characterized in that, The upper side of the fixed side plate 1 (3) and the fixed side plate 2 (5) are provided with positioning protrusions (322), which cooperate with the inner circumferential surface of the flange to achieve radial positioning of the flange.

5. The adjustable pipe bend flange welding fixture according to claim 4, characterized in that, The fixed side plate one (3) and fixed side plate two (5) are a split structure, including a U-shaped plate (31) and a sliding plate (32) with vertical sliding fit. The vertical position of the sliding plate (32) can be adjusted to adapt to the flange height of the bend (61) of different diameters.

6. The adjustable pipe bend flange welding fixture according to claim 5, characterized in that, The slide plate (32) slides vertically into the groove inside the U-shaped plate (31) through the sliding protrusion (323) on the side.

7. The adjustable pipe bend flange welding fixture according to claim 5, characterized in that, A scale is provided between the slide plate (32) and the U-shaped plate (31) to quantify the vertical displacement of the slide plate (32) so as to accurately match the center height of the bend (61).

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