阅读说明：本技术 一种船舶备用锚卸扣固定工装的螺柱焊接装置及焊接方法 (Stud welding device and method for ship spare anchor shackle fixing tool ) 是由 李磊 丁运来 林兆东 周加和 于 2020-06-29 设计创作，主要内容包括：本发明涉及船舶制造技术领域,其公开了一种船舶备用锚卸扣固定工装的螺柱焊接装置及焊接方法。所述备用锚卸扣固定工装包括一螺柱,所述螺柱竖立焊接在船舶甲板的角落处,所述螺柱焊接装置包括气体保护焊焊枪,所述气体保护焊焊枪的焊枪头包括喷嘴壳体、设置在所述喷嘴壳体内的导电嘴、设置在所述导电嘴内孔中的气保焊焊丝,所述喷嘴壳体的一侧通过斜向削边形成一缺口。本发明实现了狭窄空间内螺柱与甲板的环焊缝焊接。(The invention relates to the technical field of ship manufacturing, and discloses a stud welding device and a stud welding method for a ship spare anchor shackle fixing tool. The spare anchor shackle fixing tool comprises a stud, the stud is vertically welded at the corner of a ship deck, the stud welding device comprises a gas shielded welding gun, a welding gun head of the gas shielded welding gun comprises a nozzle shell, a conductive nozzle arranged in the nozzle shell and a gas shielded welding wire arranged in an inner hole of the conductive nozzle, and one side of the nozzle shell is chamfered to form a notch. The invention realizes the girth weld joint welding of the stud and the deck in the narrow space.)

1. The utility model provides a reserve anchor shackle fixes frock's stud welding set of boats and ships which characterized in that, reserve anchor shackle fixes frock includes a double-screw bolt, the welding is erect in the corner department on boats and ships deck to the double-screw bolt, stud welding set includes gas shielded arc welding welder, gas shielded arc welding welder's welding gun head includes nozzle housing, sets up contact tube, setting in the nozzle housing are in gas shielded arc welding wire in the contact tube hole, one side of nozzle housing forms a breach through the slant edging.

2. The stud welding device of the marine spare anchor shackle fixing tool as claimed in claim 1, wherein an included angle of the oblique chamfered edge with respect to the axis of the nozzle housing is 15-30 °.

3. The stud welding device of a ship spare anchor shackle fixing tool as claimed in claim 1, wherein the oblique chamfered notch profile is matched with the outer circle of the stud to form a side seal for welding shielding gas in the nozzle shell.

4. The stud welding device of the marine standby anchor shackle fixing tool as claimed in claim 3, wherein the contour line of the oblique chamfered notch is an inertia line formed by obliquely intersecting a cylindrical surface and the nozzle housing, and the outer diameter of the cylindrical surface is the same as the outer diameter of the stud.

5. The stud welding device of a marine backup anchor shackle fixing tool as claimed in claim 1, wherein the backup anchor shackle fixing tool is provided at a corner of a deck of a marine storage room.

6. The stud welding device of a marine spare anchor shackle fixing tool as claimed in claim 1, wherein the spare anchor shackle fixing tool further comprises a wood block sleeved on the stud and flatly arranged on a deck of a marine vessel, and the spare anchor shackle is positioned on the wood block and fixed by a pressing plate and a nut connected to the stud.

7. The stud welding device of a marine standby anchor shackle fixing tool as claimed in claim 1, wherein the standby anchor shackle is a U-shaped standby anchor shackle.

8. The stud welding device of a marine backup anchor shackle fixing tool as claimed in claim 1, wherein the nozzle housing is a high temperature resistant nozzle housing, and a ceramic spray coating is provided on a surface of the high temperature resistant nozzle housing.

9. The stud welding device of a ship spare anchor shackle fixing tool as claimed in claim 1, wherein the stud welding device is used for welding a pipe and a bottom plate in a narrow space, the pipe is vertically connected to the bottom plate, and the welding between the pipe and the bottom plate is girth welding.

10. The welding method for the stud welding device of the ship spare anchor shackle fixing tool as claimed in any one of claims 1 to 8, is characterized by comprising the following steps:

(1) modifying a welding gun: adopting a gas shielded welding gun to modify a nozzle shell on a welding gun head of the gas shielded welding gun in a local cutting or overall replacing mode, wherein one side of the modified nozzle shell forms a notch through oblique trimming;

(2) welding: applying the reformed gas shielded welding gun to the girth weld between the stud and the ship deck in the narrow space; during welding, spot welding is firstly carried out for fixation, and then girth welding is carried out, and the notch of the nozzle shell on the welding gun head is close to the side face of the flat stud in the girth welding process.

Technical Field

The invention relates to the technical field of ship manufacturing, in particular to a stud welding device and a stud welding method for a ship standby anchor shackle fixing tool.

Background

According to the prior art, a spare anchor shackle on a ship is generally vertically fixed on a bulkhead, two anchor shackles are respectively fixed on two sides of the anchor shackle by two anchor ears, and a wood cushion block is arranged at the bottom of the anchor shackle. This kind of fixed mode is more loaded down with trivial details, and during the fixing, need erect the anchor shackle, because the anchor shackle is heavier, all has the risk of falling down and pounding the foot when fixed and taking, and the installation is harder.

The reserve anchor of a simple and easy structure is broken out and is fixed frock now designed, has used on certain 7000 tons saw-dust ships, and it is that it is fixed on the deck with reserve anchor break out, takes the convenience, and is fixed firm. The spare anchor shackle fixing tool is composed of a welding stud, a section of angle steel, a nut, a wood cushion block and two small wood blocks, and the spare anchor shackle fixing tool can be used for welding the stud on a deck at the corner position of the deck. When the anchor shackle is used, a hole of the spare anchor shackle is sleeved at the stud, the wood blocks are well cushioned at the bottom, the angle steel is pressed, and the anchor shackle is tightened by the nut.

Because the stud is welded at the corner of the deck of the storage room, the welding space on one side of the stud is narrow, and the interference phenomenon occurs when the welding gun head of the conventional body-protecting welding gun welds a circumferential weld at the position. In addition, in the installation process of the ship auxiliary equipment, the situation that high-quality circumferential weld gas shielded welding cannot be performed on one side of some pipes penetrating through the deck due to narrow space can be met.

Therefore, there is a need for improvement of the prior art to solve the above problems.

Disclosure of Invention

In order to solve the problems, the invention provides a stud welding device and a welding method for a ship spare anchor shackle fixing tool, aiming at realizing girth weld between a stud and a deck in a narrow space, and the specific technical scheme is as follows:

the utility model provides a reserve anchor of boats and ships is broken out and is fixed double-screw bolt welding set of frock, reserve anchor is broken out and is fixed frock and include a double-screw bolt, the welding is erect in the corner department on boats and ships deck to the double-screw bolt, double-screw bolt welding set includes gas shielded arc welding welder, gas shielded arc welding welder's welder head includes nozzle housing, sets up contact tube, setting in the nozzle housing are in the gas shielded arc welding wire in the contact tube inner bore, one side of nozzle housing forms a breach through the slant edging.

Preferably, the included angle of the oblique chamfered edge relative to the axis of the nozzle shell is 15-30 degrees.

And the notch profile of the oblique chamfered edge is matched with the excircle of the stud to form side surface plugging for welding protective gas in the nozzle shell.

Preferably, the contour line of the notch of the oblique chamfered edge is a phase inertia line formed by obliquely intersecting a cylindrical surface and the nozzle shell, and the outer diameter of the cylindrical surface is the same as that of the stud.

In the invention, the spare anchor shackle fixing tool is arranged at the corner of a deck of a ship storage room.

The spare anchor shackle fixing tool further comprises a wood cushion block which is sleeved on the stud and is leaned on and leveled on a ship deck, and the spare anchor shackle is positioned on the wood cushion block and is fixed through a stud upper pressing plate and a nut.

Preferably, the pressing plate is made of angle steel.

In the invention, the spare anchor shackle is a U-shaped spare anchor shackle.

In the invention, the nozzle shell is a high-temperature-resistant nozzle shell, and the surface of the high-temperature-resistant nozzle shell is provided with a ceramic spraying layer.

As a further development of the invention, the stud welding device is used for welding a tube to a base plate in a narrow space, the tube is vertically connected to the base plate, and the welding between the tube and the base plate is girth welding.

A welding method of a stud welding device of a ship standby anchor shackle fixing tool comprises the following steps:

(1) modifying a welding gun: adopting a gas shielded welding gun to modify a nozzle shell on a welding gun head of the gas shielded welding gun in a local cutting or overall replacing mode, wherein one side of the modified nozzle shell forms a notch through oblique trimming;

(2) welding: applying the reformed gas shielded welding gun to the girth weld between the stud and the ship deck in the narrow space; during welding, spot welding is firstly carried out for fixation, and then girth welding is carried out, and the notch of the nozzle shell on the welding gun head is close to the side face of the flat stud in the girth welding process.

The invention has the beneficial effects that:

firstly, according to the stud welding device and the welding method of the spare anchor shackle fixing tool for the ship, the cylindrical inertia line notch is obliquely arranged on the welding gun head of the gas shielded welding gun, and the cylindrical inertia line notch can be flatly leaned on the side surface of the stud during welding, so that complete gas flow of welding shielding gas is formed, and the problem of high-quality welding of a circumferential weld of the stud and a deck in a narrow space is solved.

Secondly, the stud welding device and the welding method of the spare anchor shackle fixing tool for the ship can be widely applied to welding of circumferential weld seams of pipes passing through a deck under the condition of narrow space.

Drawings

FIG. 1 is a schematic structural diagram of a stud welding device of a marine spare anchor shackle fixing tool;

FIG. 2 is a schematic structural diagram of a gas shielded welding gun for performing girth welding on a stud and a ship deck in a narrow space and assembling a spare anchor shackle.

In the figure: 1. spare anchor shackle, 2, stud, 3, welding gun head, 4, nozzle shell, 5, current conducting nozzle, 6, gas shielded welding wire, 7, gap, 8, wood cushion block, 9, pressing plate, 10, nut, 11, girth weld, 12, wire feeding wheel, 13 and ship deck.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.