Pipe system flange plate welding auxiliary device

Abstract

The utility model discloses a piping flange welding auxiliary device, and belongs to the technical field of ship tools. According to the technical scheme, the piping flange plate welding auxiliary device comprises a rotating tool assembly and a supporting assembly, the rotating tool assembly is installed on the top face of the supporting assembly, the rotating tool assembly is rotationally connected with the supporting assembly, the rotating tool assembly comprises a centering structure, and the centering structure is located on a rotating shaft of the rotating tool assembly; the rotating tool assembly is of an integrated structure, and the supporting assembly is of an integrated structure. The welding tool has the advantages that a flange plate is firstly placed on the top face of the rotating tool assembly, then a steel pipe is arranged above the rotating tool assembly in a sleeved mode, namely the top face of the flange plate and the bottom face of the steel pipe make contact with the top face of the flange plate, then welding is conducted, the rotating tool assembly is rotated in the welding process, accurate positioning can be kept, the structure is simple, positioning is accurate, and operation is easy and convenient; welding seams are attractive, and time and space are effectively saved.

Description

Technical Field

[0001] The utility model relates to the technical field of ship tools, in particular to a pipe flange welding auxiliary device. Background Art

[0002] The shipbuilding process involves the installation of many pipelines, so a large number of steel pipe flanges need to be welded. The quality of flange welding is directly related to the quality of the pipeline during installation and use. At present, most of the steel pipe flanges are welded by manual spotting, then argon arc welding for base welding, and manual welding for cover welding.

[0003] The publication number is CN209157548U, which discloses a welding auxiliary device, in which a positioning through hole is opened on the first positioning plate, and the upper ends of multiple positioning columns pass through the first positioning plate, and flanges are arranged on the multiple positioning columns to support the first positioning plate, that is, flanges are arranged on the side walls of the positioning columns, and the flanges are abutted against the lower side of the first positioning plate so that the flanges support the first positioning plate, and the flange can be placed on the upper side of the first positioning plate so that the flange is opposite to the connecting pipe, that is, the flange is placed on the first positioning plate, and the connecting pipe is sleeved on the cylinder at the same time, so that the welding edge of the flange is opposite to the welding edge of the connecting pipe to achieve the positioning of the flange and the connecting pipe.

[0004] The existing auxiliary device realizes the positioning of the flange and the steel pipe, but the angle of the steel pipe needs to be continuously adjusted during the welding process for multiple welding. This method is difficult to ensure the airtight effect at the joint between the steel pipe and the flange during the welding process. Since the weld needs to be welded multiple times, there are many weld joints and the appearance is poor. In addition, the process is cumbersome, the labor intensity of the workers is high, and the production efficiency is low. Utility Model Content

[0005] The utility model aims to solve the problem that it is difficult to ensure the airtight effect at the joint of the steel pipe and the flange during the welding process. Since the weld needs to be welded multiple times, there are many weld joints and the appearance is poor. In addition, the process is cumbersome, the labor intensity of the workers is high, and the production efficiency is low. A pipe flange welding auxiliary device is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A pipe flange welding auxiliary device includes a rotating tooling assembly and a supporting assembly. The rotating tooling assembly is installed on the top surface of the supporting assembly. The rotating tooling assembly is rotatably connected to the supporting assembly. The rotating tooling assembly includes a centering structure. The centering structure is located on the rotating shaft of the rotating tooling assembly. The rotating tooling assembly is an integrated structure. The supporting assembly is an integrated structure. The flange is first placed on the top surface of the rotating tooling assembly, and then a steel pipe is sleeved over the rotating tooling assembly, i.e., the top surface of the flange. The bottom surface of the steel pipe contacts the top surface of the flange, and then welding is performed. During the welding process, the rotating tooling assembly is rotated to maintain accurate positioning.

[0008] Furthermore, the support assembly includes a support disc, and a sleeve is fixedly arranged on the top surface of the support disc. The support disc facilitates stabilizing the entire device on the ground to prevent violent shaking during welding that may cause inaccurate positioning. The sleeve is rotatably connected to the bottom of the rotating tooling assembly.

[0009] Furthermore, the rotating tooling assembly includes a free rotating body rotatably connected to the sleeve, an auxiliary disk is fixedly arranged on the top surface of the free rotating body, and a centering structure is arranged on the top surface of the auxiliary disk. The auxiliary disk facilitates the operator to rotate the rotating tooling assembly during the welding process. The rotation process will drive the flange and the steel pipe to rotate, so that an entire layer can be welded at one point with accurate positioning.

[0010] Furthermore, the centering structure includes a plurality of metal pipes of different diameters, and the plurality of metal pipes are fixedly connected upward in sequence from large to small, so as to facilitate welding of flanges and pipes of different diameters.

[0011] Furthermore, the bottom end of the free-rotating body is a spherical surface, which can reduce the friction between the bottom surface of the free-rotating body and the bottom surface inside the sleeve, thereby facilitating the rotation of the rotating tooling assembly.

[0012] Furthermore, the outer diameter of the free-rotating body is smaller than the inner diameter of the sleeve, which can reduce the friction between the outer wall of the free-rotating body and the inner side wall of the sleeve, thereby facilitating the rotation of the rotating tooling assembly.

[0013] Beneficial effects of the utility model:

[0014] 1. The utility model places the flange on the top surface of the rotating tooling assembly first, and then puts the steel pipe on the top of the rotating tooling assembly, that is, the top surface of the flange, the bottom surface of the steel pipe contacts the top surface of the flange, and then welds. During the welding process, the rotating tooling assembly is rotated to maintain accurate positioning. The structure is simple, the positioning is accurate, the operation is simple, the weld is good-looking, and time and space are effectively saved.

[0015] 2. The supporting disc in the utility model facilitates stabilizing the entire device on the ground, preventing violent shaking during welding that may cause inaccurate positioning.

[0016] 3. The auxiliary plate in the utility model is convenient for the operator to rotate the rotating tooling assembly during the welding process. The rotation process will drive the flange and the steel pipe to rotate, so that a whole layer can be welded at one point with accurate positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of a specific implementation method of the utility model.

[0019] Figure 2 It is a structural schematic diagram of a rotating tooling assembly according to a specific implementation method of the utility model.

[0020] Figure 3 It is a structural schematic diagram of the support assembly in a specific implementation manner of the utility model.

[0021] The reference numerals are as follows:

[0022] 1. Metal tube; 1-1. First metal tube; 1-2. Second metal tube; 1-3. Third metal tube; 1-4. Fourth metal tube; 2. Auxiliary disk; 3. Free rotating body; 4. Sleeve; 5. Support disk. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1-3 As shown, it relates to a pipe flange welding auxiliary device, including a rotating tooling assembly and a supporting assembly, wherein the rotating tooling assembly is installed on the top surface of the supporting assembly, specifically: the bottom end of the rotating tooling assembly is rotatably connected to the supporting assembly, wherein the rotating tooling assembly includes a centering structure, and the centering structure is located on the rotating shaft of the rotating tooling assembly. The device first places the flange on the top surface of the rotating tooling assembly, and then puts the steel pipe on the rotating tooling assembly, that is, the top surface of the flange, and the bottom surface of the steel pipe contacts the top surface of the flange, and then welding is performed. During the welding process, the rotating tooling assembly is rotated to maintain accurate positioning.

[0025] like Figure 3As shown, the support assembly is an integrated structure, including a support disc 5 at the bottom, the support disc 5 is used to support the entire device, so that the entire device is stable on the ground and prevents violent shaking during welding that may cause inaccurate positioning. A sleeve 4 is fixedly arranged on the top surface of the support disc 5, and the sleeve 4 is used to connect with the rotating tooling assembly. The sleeve 4 and the support disc 5 are an integrated structure, and the fixing method may be welding or any other fixing method to achieve an integrated structure.

[0026] like Figure 2 As shown, the rotating tooling assembly includes a free rotating body 3, which is inserted into the sleeve 4 and rotates inside the sleeve 4. The bottom end of the free rotating body 3 is a spherical surface, which can reduce the friction between the bottom surface of the free rotating body 3 and the bottom surface inside the sleeve 4, thereby facilitating the rotation of the rotating tooling assembly. The outer diameter of the free rotating body 3 is smaller than the inner diameter of the sleeve 4, thereby reducing the friction between the outer wall of the free rotating body 3 and the inner side wall of the sleeve 4, thereby facilitating the rotation of the rotating tooling assembly. The top surface of the free rotating body 3 is fixedly connected to the auxiliary disk 2, which facilitates the operator to rotate the rotating tooling assembly during welding. The rotation process will drive the flange and the steel pipe to rotate, so that a whole layer can be welded at one point with accurate positioning. A centering structure is arranged on the top surface of the auxiliary disk 2, and the centering structure is located on the rotating axis of the rotating tooling assembly.

[0027] like Figure 2 As shown, the centering structure includes a plurality of metal tubes 1 with different diameters. The first metal tube 1-1, the second metal tube 1-2, the third metal tube 1-3, the fourth metal tube 1-4, etc. are fixedly arranged in order from bottom to top by diameters from large to small. In the working state, the operator can weld flanges and steel pipes with different diameters. When the inner diameter of the flange and the steel pipe is the same as the outer diameter of the metal pipe 1-4, the flange is first passed through the first metal tube 1-1, the second metal tube 1-2, the third metal tube 1-3, and the fourth metal tube 1-4, and placed on the top surface of the auxiliary plate 2, and then the steel pipe is also welded. Pass through the first metal tube 1-1, the second metal tube 1-2, the third metal tube 1-3, and the fourth metal tube 1-4, and place it on the top surface of the flange; when the inner diameter of the flange and the steel tube is the same as the outer diameter of the third metal tube 1-3, first pass the flange through the first metal tube 1-1, the second metal tube 1-2, and the third metal tube 1-3, and place it on the top surface of the fourth metal tube 1-4, and then pass the steel tube through the first metal tube 1-1, the second metal tube 1-2, and the third metal tube 1-3, and place it on the top surface of the flange; ... and so on, which is convenient for welding flanges and pipes of different diameters.

[0028] The method of using the utility model is as follows: the device is placed on the work station for welding steel pipe flanges, and the steel pipe and flange fixed by spot welding are placed on the positioning structure of the device with the corresponding pipe diameter. During the welding process, the welder can complete the welding of the steel pipe and the outer side of the flange at one time by rotating the welding auxiliary plate 2, and then the steel pipe can be placed on the welding auxiliary plate 2 to weld the inner side of the flange to the steel pipe. The device has a simple structure, accurate positioning, easy operation, good-looking welds, and effectively saves time and space.

[0029] It can be seen from the above embodiments that the beneficial effects of the present invention are:

[0030] The utility model places the flange on the top surface of the rotating tooling assembly first, and then puts the steel pipe on the top of the rotating tooling assembly, that is, the top surface of the flange, the bottom surface of the steel pipe contacts the top surface of the flange, and then welding is performed. The rotating tooling assembly is rotated during the welding process to maintain accurate positioning. The structure is simple, the positioning is accurate, the operation is easy, the weld is good-looking, and time and space are effectively saved.

[0031] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A pipe flange welding auxiliary device, characterized in that: It includes a rotating tooling assembly and a supporting assembly, wherein the rotating tooling assembly is installed on the top surface of the supporting assembly, the rotating tooling assembly is rotatably connected to the supporting assembly, the rotating tooling assembly includes a centering structure, and the centering structure is located on the rotating shaft of the rotating tooling assembly. The rotating tooling assembly is an integrated structure, and the supporting assembly is an integrated structure.

2. The pipe flange welding auxiliary device according to claim 1 is characterized in that: The support assembly comprises a support disc (5), and a sleeve (4) is fixedly arranged on the top surface of the support disc (5).

3. The pipe flange welding auxiliary device according to claim 2 is characterized in that: The rotary tooling assembly comprises a free-rotating body (3) rotatably connected to a sleeve (4), an auxiliary disk (2) being fixedly arranged on the top surface of the free-rotating body (3), and the centering structure being arranged on the top surface of the auxiliary disk (2).

4. The pipe flange welding auxiliary device according to claim 3 is characterized in that: The centering structure comprises a plurality of metal tubes (1) of different diameters, wherein the plurality of metal tubes (1) are fixedly connected upward in sequence from large to small.

5. The pipe flange welding auxiliary device according to claim 3 is characterized in that: The bottom end of the free-rotating body (3) is a spherical surface.

6. The pipe flange welding auxiliary device according to claim 3 is characterized in that: The outer diameter of the free-rotating body (3) is smaller than the inner diameter of the sleeve (4).

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