CN-224209342-U - Neck flange dress welds frock

Abstract

The utility model relates to the technical field of ship piping welding, and discloses a necked flange welding tool which comprises a fixed pipe (1) arranged on a welding platform (12), wherein a sleeve (2) is arranged on the fixed pipe (1), a positioning hole (13) is formed in one side wall of the sleeve (2), a positioning piece (3) is arranged in the positioning hole (13), the other side wall of the sleeve (2) is connected with a locking piece (5) through a connecting piece (4), one end of the connecting piece (4) is arranged on a connecting plate (6) through a fixing piece (10), an argon hole (11) is formed in the connecting plate (6), the argon hole (11) is positioned on the edge of the fixing piece (10), an argon joint (9) is arranged on the argon hole (11) within the central inner diameter range of a flange plate of a necked flange, the connecting plate (6) is connected with the necked flange (7) through a waist-shaped hole (14), and the necked flange (7) is connected with a straight pipe (8). The utility model has convenient argon filling, avoids overhead welding and reduces welding difficulty.

Inventors

• SU PING
• Gong Xuanlong

Assignees

• 南通远洋船舶配套有限公司

Dates

Publication Date

20260508

Application Date

20231019

Claims (7)

1. 1. The neck flange mounting and welding tool comprises a welding platform (12), wherein a fixing pipe (1) is arranged on the welding platform (12), the neck flange mounting and welding tool is characterized in that a sleeve (2) is arranged on the fixing pipe (1), a positioning hole (13) is formed in one side wall of the sleeve (2), a positioning piece (3) is arranged in the positioning hole (13), the positioning piece (3) abuts against the surface of the fixing pipe (1), a connecting piece (4) is fixedly arranged on the other side wall of the sleeve (2), a locking piece (5) is arranged on the connecting piece (4), one end of the connecting piece (4) is connected with a fixing piece (10), the fixing piece (10) is fixedly arranged on a connecting plate (6), an argon hole (11) is formed in the connecting plate (6), the argon hole (11) is located on the side of the fixing piece (10), an argon joint (9) is arranged on the argon hole (11), the connecting plate (6) is connected with the neck flange (7) through a waist-shaped hole (14), and the neck flange (7) is connected with a straight pipe (8).
2. 2. A necked-in flange fitting tool as set forth in claim 1, characterized in that the waist-shaped hole (14) has a diameter of <20mm, or 20-30mm, or 30-45mm.
3. 3. The neck flange welding fixture according to claim 1, wherein the fixed pipe (1) is a polished rod.
4. 4. A neck flange welding fixture according to claim 3 is characterized in that the fixed pipe (1) is perpendicular to the welding platform (12), the bottom is welded and fixed on the welding platform (12), and the connecting piece (4) and the straight pipe (8) are parallel to the ground plane.
5. 5. The neck flange welding fixture according to claim 1, wherein the fixing piece (10) is welded and fixed in the center of the connecting plate (6).
6. 6. The neck flange welding fixture according to claim 1, wherein the positioning holes (13) are screw holes, and the positioning pieces (3) are fixing bolts.
7. 7. The neck flange welding fixture according to claim 1, wherein the connecting piece (4) is a connecting screw rod, the locking piece (5) is a locking nut, and the fixing piece (10) is a fixing nut.

Description

Neck flange dress welds frock Technical Field The utility model relates to the technical field of ship piping welding, in particular to a neck flange welding tool. Background The neck flange and the connecting pipe pipeline are fixed by adopting a clamping tool during welding, and are welded along a welding line winding after being fixed, so that overhead welding is inevitably required, welding is difficult during overhead welding, and welding line defects are easy to occur during welding. CN210306366U discloses an auxiliary fixture for installing and welding a flange of a central connecting pipe of a sealing head, a stand column is arranged on a chassis, a top disc is arranged at the top of the stand column, and the flange of the connecting pipe is installed on the top disc, and although the overhead welding is not needed during welding, argon filling is inconvenient. For this reason, a new technical solution is needed to solve the above technical problems. Disclosure of utility model The utility model aims to solve the technical problem of providing a neck flange welding fixture which is convenient to fill argon, avoids overhead welding and reduces welding difficulty. In order to solve the technical problems, the utility model provides a neck flange welding tool which comprises a welding platform, wherein a fixed pipe is arranged on the welding platform, a sleeve is arranged on the fixed pipe, and the welding height and the position angle of a welding piece can be adjusted by moving or rotating the sleeve up and down. The device comprises a sleeve, a connecting plate, a neck flange, a connecting plate, an argon hole, a waist-shaped hole, a flange plate with a neck, a connecting plate and a straight pipe, wherein a locating hole is formed in one side wall of the sleeve, a locating piece is arranged in the locating hole and is abutted against the surface of the fixed pipe, a connecting piece is fixedly arranged on the other side wall of the sleeve, a locking piece is arranged on the connecting piece, one end of the connecting piece is connected with the fixing piece, the fixing piece is fixedly arranged on the connecting plate, the connecting plate is provided with the argon hole, the argon hole is positioned on the side of the fixing piece and is within the central inner hole diameter range of the flange plate with the neck, the argon hole is provided with the argon connector, and the connecting plate is connected with the neck flange through the waist-shaped hole and is connected with the straight pipe. Through adopting above-mentioned technical scheme, take neck flange to install on the connecting plate, the argon gas hole that the connecting plate was offered through it installs argon gas joint, and the argon gas hole site is in the central internal aperture scope of ring flange, and direct argon gas in to the pipe during the welding, it is convenient to fill argon, prevents to take neck flange and straight tube surface oxidation, improves welding quality. Through the cooperation of retaining member and mounting, will install the connecting plate locking of taking the neck flange on the connecting piece, when being convenient for fill argon, take the neck flange to rotate along with the mounting and can realize the angular adjustment of taking the neck flange, then with retaining member locking, take neck flange and the fixed time rotatable welding of straight tube spot welding, avoided the overhead welding, reduced the welding degree of difficulty. Preferably, the waist-shaped aperture has a diameter of <20mm, alternatively 20-30mm, alternatively 30-45mm. By adopting the technical scheme, the waist-shaped holes with three different apertures are adopted, so that the specification of the connecting plate and the specification of the flange hole with the neck are matched. Preferably, the fixed pipe is a polished rod. Through adopting above-mentioned technical scheme, when guaranteeing that the sleeve pipe supports tightly on fixed pipe through the setting element, the production processing of the fixed pipe of being convenient for. Preferably, the fixed pipe is perpendicular to the welding platform, the bottom is welded and fixed on the welding platform, and the connecting piece and the straight pipe are parallel to the ground plane. Through adopting above-mentioned technical scheme, with fixed pipe welded fastening on welded platform, through connecting piece installation connecting plate, the neck flange of being convenient for adjusts the level, better and straight tube cooperation improves welded reliability. Preferably, the fixing member is welded and fixed to the center of the connecting plate. Through adopting above-mentioned technical scheme, install the mounting in the central authorities of connecting plate, the mounting is connected the back with the connecting piece, is convenient for connecting plate balancing weight, makes the welding stable. Preferably, the positioning hole is a screw hole