CN223776419U

CN223776419U - Tool for welding branch pipes on cylindrical products

Info

Publication number: CN223776419U
Application number: CN202423218268.0U
Authority: CN
Inventors: 陈国贤; 张岩; 韦宝权; 刘闯
Original assignee: Shenyang Fortune Precision Equipment Co Ltd
Current assignee: Shenyang Fortune Precision Equipment Co Ltd
Priority date: 2024-12-26
Filing date: 2024-12-26
Publication date: 2026-01-09
Anticipated expiration: 2034-12-26

Abstract

This utility model relates to the field of welding technology, specifically a tooling for welding branch pipes onto cylindrical products. It includes a support plate fixedly mounted on the cylindrical product, which consists of a cylindrical body and a flange disposed on the outside of the body. The cylindrical body has mounting holes. The branch pipe flange is inserted into the mounting holes and welded to the cylindrical body. The support plate consists of an arc-shaped plate, a support platform on the arc-shaped plate, and a top block. The arc-shaped plate is fixedly connected to the flange. The support platform has a groove matching the shape of the branch pipe flange. The top block is disposed on the outside of the support platform, abutting against the outer end face of the branch pipe flange. This tooling for welding branch pipes onto cylindrical products not only improves assembly and welding efficiency but also reduces the time spent manually adjusting the position and angle of the branch pipe, thereby reducing the labor intensity of workers.

Description

Tool for welding branch pipes on cylindrical products

Technical Field

The utility model relates to the technical field of welding, in particular to a tool for welding a branch pipe on a cylindrical product.

Background

In the field of welding technology, there are a series of technical challenges, especially in the process of welding branch pipes or flange pipes on thin-walled cylinder products. Because of the small wall thickness of the thin-walled cylinder, it is difficult to design an effective clamping table to position the branch pipe or the flange pipe, which brings great inconvenience to assembly and welding work. Meanwhile, thermal stress generated in the welding process often causes shrinkage deformation of a welding part, particularly for a cylinder branch pipe part which is processed in place, the requirement on dimensional accuracy is high, the deformation problem after welding is particularly remarkable, and the product size and shape position are easy to be out of tolerance.

To solve these problems, it has conventionally been necessary to design a special welding tool to assist in positioning and fixing the branch pipe or the flange pipe to ensure dimensional accuracy after welding. However, the existing tool is often single in function, complex in operation, and difficult to adapt to branch pipes or flange pipes with different sizes, which limits the improvement of production efficiency to a certain extent and increases the labor intensity of workers.

Therefore, there is a need to design a tooling for welding branch pipes on a tubular product to solve the above-mentioned problems.

Disclosure of utility model

In order to solve the problems, the utility model provides a tool for welding the branch pipes on the cylindrical products, which not only improves the assembly and welding efficiency, but also reduces the time for manually adjusting the positions and angles of the branch pipes, thereby reducing the labor intensity of workers.

The technical scheme of the utility model is as follows:

A frock for welding branch pipe on section of thick bamboo class product, including the backup pad of fixed mounting on section of thick bamboo class product, section of thick bamboo class product comprises barrel and the barrel flange of setting outside the barrel, is provided with the mounting hole on the barrel, welds on the barrel after the branch pipe flange inserts the mounting hole, and the backup pad comprises arc and brace table and kicking block that set up on the arc, arc fixed connection on the barrel flange, be provided with on the brace table with branch pipe flange appearance assorted recess, the kicking block setting withstands the outer terminal surface of branch pipe flange in the outside of brace table.

The arc-shaped plate and the cylinder flange are provided with matched pin holes, and the first positioning pin is arranged in the pin holes to fixedly connect the support plate with the cylinder product.

The supporting table and the top block are arranged at the center of the arc-shaped plate.

The backup pad is split type integrated configuration.

The support plate is divided into two half support plates from a central position.

Optionally, the two half supporting plates are fixedly connected through a second positioning pin.

Optionally, the two half-support plates are fixedly connected by bolts.

The utility model has the beneficial effects that:

1. According to the tool for welding the branch pipes on the cylindrical products, disclosed by the utility model, the flange of the branch pipe is accurately positioned through the groove and the ejector block on the supporting table, so that the branch pipes can be quickly and accurately assembled on the cylinder body, and the assembly efficiency is improved.

2. The tool for welding the branch pipes on the cylindrical products is accurately fixed through the arc-shaped plates fixedly connected to the flange of the cylindrical body and the positioning pins, so that shrinkage deformation caused by thermal stress in the welding process is effectively reduced, the sizes and shape and position accuracy of the branch pipes and the cylindrical body after welding are ensured, and the drawing size with high requirements is met.

3. The tool for welding the branch pipes on the cylindrical products has flexibility in design, and the supporting table and the top block can adapt to branch pipe flanges with different sizes, so that the tool is suitable for positioning welding of branch pipes/flange pipes with various sizes.

4. The tool for welding the branch pipes on the cylindrical products is designed into a split type combined structure, particularly, the supporting plate can be divided into two half supporting plates which are fixedly connected through bolts or positioning pins, so that the tool is easy to detach and reinstall, and meanwhile, the extending angle and the extending length of the branch pipes can be conveniently adjusted in the welding process.

5. The tool for welding the branch pipes on the cylindrical products is integrally designed and shaped along with the cylindrical wall, ensures accurate control of the distance between the outer edges of the branch pipes and the outer wall of the cylinder, and simultaneously, effectively prevents movement and deformation in the welding process, ensures that the dimensional tolerance after welding is within +/-0.25 mm and improves the welding quality through the fixed connection of the tool and the cylinder.

Drawings

The aspects and advantages of the present utility model will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model.

In the drawings:

FIG. 1 is a schematic perspective view of a tool for welding branch pipes on a cylindrical product according to an embodiment of the present utility model;

FIG. 2 is a schematic perspective view of a cylindrical product of a tool for welding branch pipes on the cylindrical product according to an embodiment of the present utility model;

FIG. 3 is a schematic perspective view of a cylindrical product and a flange of a branch pipe of a fixture for welding the branch pipe on the cylindrical product according to an embodiment of the present utility model;

fig. 4 is a schematic perspective view of a support plate of a tool for welding branch pipes on a cylindrical product according to an embodiment of the present utility model;

fig. 5 is a schematic diagram showing a second perspective structure of a support plate of a tool for welding branch pipes on a cylindrical product according to an embodiment of the present utility model;

FIG. 6 is a schematic perspective view of a fixture for welding branch pipes on a cylindrical product according to an embodiment of the present utility model after a half support plate is installed;

FIG. 7 is a schematic perspective view of a tool for welding a branch pipe on a cylindrical product according to an embodiment of the present utility model after installing the other half of the support plate;

FIG. 8 is a schematic perspective view of a fixture for welding a branch pipe on a cylindrical product after installing a positioning pin according to an embodiment of the present utility model;

the components represented by the reference numerals in the figures are:

The utility model comprises the following steps: 1, a barrel product, 11, a barrel flange, 12, a barrel, 121, a mounting hole, 2, a supporting plate, 21, a supporting table, 22, a top block, 23, an arc plate, 3, a first positioning pin, 4, a second positioning pin, 5, a branch pipe flange, 6 and a welding seam.

Detailed Description

Because the wall thickness of the tube is smaller in the tube type branch tube products, the position of the clamping table positioning branch tube cannot be designed, so that the designed tool can meet the requirement of assembly positioning, and the dimension of the welding position can be verified after welding; in order to facilitate the disassembly of the tool after welding, the supporting table of the branch pipe needs to be disassembled into two parts which are connected and fastened through bolts, and in order to adjust the extension length of the pipe, a jacking block needs to be designed on the outer edge of the supporting table, and meanwhile, the whole tool needs to be designed along with the shape of the cylinder wall. The distance between the outer edge of the branch pipe and the outer wall of the cylinder can be controlled, and in order to prevent shrinkage deformation in the welding process, the fixture needs to be fixed on a product. These fastening points may be fixed by PIN-fitting through existing holes in the product.

The following is one specific example:

As shown in fig. 1 and 8, the tool for welding the branch pipe on the cylindrical product comprises a support plate 2 fixedly installed on the cylindrical product 1.

As shown in fig. 2 and 3, the cylindrical product 1 is composed of a cylindrical body 12 and a cylindrical body flange 11 arranged outside the cylindrical body 12, a mounting hole 121 is formed in the cylindrical body 12, the branch pipe flange 5 is inserted into the mounting hole 121 and then welded on the cylindrical body 12, and the welded seam 6 is arranged on the inner side of the cylindrical body 12.

As shown in fig. 4 and 5, the support plate 2 is composed of an arc-shaped plate 23, a support table 21 provided on the arc-shaped plate 23, and a top block 22.

The arc-shaped plate 23 is fixedly connected to the barrel flange 11, a matched pin hole is formed in the barrel flange 11, and the first positioning pin 3 is arranged in the pin hole to fixedly connect the support plate 2 with the barrel product 1.

The supporting table 21 is provided with a groove matched with the shape of the branch pipe flange 5 for supporting the branch pipe flange 5.

The ejector block 22 is arranged on the outer side of the supporting table 21 and is used for supporting the outer end face of the branch pipe flange 5 and adjusting the extension length of the branch pipe.

As shown in fig. 4 to 7, the supporting table 21 and the top block 22 are disposed at the center of the arc plate 23, and in order to facilitate the post-welding disassembly tool, the supporting plate 2 is designed as a split type combined structure, and is divided into two half supporting plates from the center (although the number is not directly mentioned here, it is understood that the split part of the supporting plate 2 is defined according to the description).

The two half-supporting plates can be fixedly connected through the second positioning pin 4 or the bolt so as to be quickly assembled and disassembled before and after welding.

The tool structure needs to be finely adjusted according to different barrel branch pipe product structures, and stability, accuracy and convenience of the tool are guaranteed.

The tool integrates assembly, inspection and shape correction, considers that the parts have strict requirements on size, and are welded after being machined in place, and an effective scheme is needed to be adopted for prevention, so that the whole welded size is ensured to be qualified, the tool can be used in the welding process of the branch pipe/flange, and the dimensional tolerance of the branch pipe/flange is ensured to be within +/-0.25 mm after welding.

Claims

1. A tool for welding branch pipes on barrel products is characterized by comprising a supporting plate (2) fixedly installed on the barrel products (1), wherein the barrel products (1) are composed of a barrel body (12) and a barrel body flange (11) arranged outside the barrel body (12), mounting holes (121) are formed in the barrel body (12), the branch pipe flange (5) is inserted into the mounting holes (121) and then welded on the barrel body (12), the supporting plate (2) is composed of an arc-shaped plate (23) and a supporting table (21) and a jacking block (22) which are arranged on the arc-shaped plate (23), the arc-shaped plate (23) is fixedly connected to the barrel body flange (11), grooves matched with the shapes of the branch pipe flange (5) are formed in the supporting table (21), and the jacking block (22) is arranged on the outer side of the supporting table (21) to prop against the outer end face of the branch pipe flange (5).

2. Tool for welding branch pipes on cylindrical products according to claim 1, characterized in that the arc-shaped plate (23) and the cylinder flange (11) are provided with matched pin holes, and the first positioning pin (3) is arranged in the pin holes to fixedly connect the supporting plate (2) with the cylindrical products (1).

3. Tool for welding branch pipes on tubular products according to claim 1, characterized in that the support table (21) and the top block (22) are arranged in the centre of the arc plate (23).

4. A tooling for welding branch pipes on tubular products according to claim 3, characterized in that the support plate (2) is of a split type combined structure.

5. Tooling for welding branch pipes on tubular products according to claim 4, characterized in that said support plate (2) is divided into two half-support plates from a central position.

6. The tooling for welding branch pipes on cylindrical products according to claim 4, wherein the two half supporting plates are fixedly connected through a second positioning pin (4).

7. The tooling for welding branch pipes on cylindrical products according to claim 4, wherein the two half support plates are fixedly connected by bolts.