CN113857638B - Riveting profiling pier head and installation method - Google Patents

Abstract

The invention discloses a riveting profiling pier head and an installation method in the technical field of ship riveting profiling, and the riveting profiling pier head comprises a pier head main body; the pier head main body is made of conductive materials, one side of the pier head main body is a profiling side, and the other side of the pier head main body is a welding side; performing collision welding on the columns; the butt-welding column is integrally formed on the profiling side of the pier head main body; a consumable contact; the consumable contact is integrally formed on the welding side of the pier head main body; a plastic melting groove; the melting plastic groove is formed on the welding side of the pier head main body and used for containing melting liquid of the melting consumable contact. According to the invention, the profiling side of the pier head main body is provided with the touch welding column, the welding side of the pier head main body is provided with the consumable contact and the plastic melting groove, and the consumable contact can be melted and flow into the plastic melting groove by applying welding current and welding pressure to the pier head main body through the matching of the touch welding column and the touch welding machine, so that the pier head main body and the ship body are welded and fixed; after the butt-welded column on the pier head main body is cut, riveting profiling of the external surface of the ship can be realized.

Description

Riveting profiling pier head and installation method

Technical Field

The invention relates to the technical field of ship riveting and profiling, in particular to a riveting and profiling pier head and an installation method thereof.

Background

Since the first steel ship appeared in the world in 1879, most ships were built using steel. For steel vessels, the manufacturing process goes through the process of riveting to welding. The ships adopt riveting structures before the 40 th of the 20 th century, and part of the ships begin to adopt welding structures after the 40 th of the century; with the development of welding technology, ships have basically adopted welded structures after the 50 s.

Riveted ships before the 20 th century and the 40 th era have gradually disappeared in life of people with the time shift, and rarely survived ships are in a damaged state, and if renovation and repair are not performed, the riveted ships will disappear in the near future. The most important thing in the repair or retro construction of the riveted ship is the reproduction of the external surface of the ship, and when the riveted ship is repaired and constructed, if the riveting process is adopted, a large amount of manpower, material resources and financial resources are consumed, for example, about 20 ten thousand rivets with different specifications are needed to be used for constructing about one riveted ship with about 500 tons, and the repair period and the reconstruction period of the riveted ship are severely limited. Moreover, the construction process flow of the riveted ship is greatly different from the modern shipbuilding mode, which also results in a long repair or reconstruction period of the riveted ship.

Butt welding refers to a process of welding and connecting workpieces face to face by a butt welding machine. The method specifically comprises the following steps: two workpieces (metal welding pieces) are clamped on a butt-welding machine head, the joint ends of the two workpieces are mutually abutted, a large amount of current flows through a clamping head to cause the workpieces to generate high temperature through a contact surface, and when the joint end reaches a plastic state, proper pressure is applied to the moving end to extrude and joint the two ends.

Disclosure of Invention

In view of this, the invention aims to provide a riveting profiling pier head to solve the technical problem that the existing riveting ship has long repair and reconstruction period.

The technical scheme adopted by the invention is as follows: a riveting profile pier head, comprising:

a pier nose main body; the pier head main body is made of conductive materials, one side of the pier head main body is a profiling side, and the other side of the pier head main body is a welding side;

performing collision welding on the columns; the butt-welding column is integrally formed on the profiling side of the pier head main body;

a consumable contact; the consumable contact is integrally formed on the welding side of the pier head main body;

a plastic melting groove; the melting plastic groove is formed in the welding side of the pier head main body and used for containing the melting liquid of the melting consumable contact.

Preferably, the consumable contact includes the cylindrical section and the toper section of coaxial setting, cylindrical section integrated into one piece in the welding side of pier nose main part, toper section integrated into one piece in the tip of cylindrical section.

Preferably, the diameter d3 of the columnar section is =6 mm-8 mm, and the height h2 of the columnar section is =1mm; the height h3=1mm of the conical section.

Preferably, the whole pier head main body is in a round table shape or a round head shape.

Preferably, the pier head main body is made of steel.

Preferably, the diameter d1=5mm of the welding column, and the height H =12mm to 13mm of the welding column.

Preferably, the plastic melting groove surrounds the consumable contact for a circle, and the volume of the plastic melting groove is larger than that of the consumable contact.

Preferably, the pier head main body, the butt welding column and the consumable contact are coaxially arranged.

Another object of the present invention is to provide a method for installing a riveted copying pier head, which is used for welding the riveted copying pier head to the external surface of a ship, and comprises the following steps:

s10: acquiring pier head parameters of a profiling area, and manufacturing an insulating backup plate according to the pier head parameters, wherein the insulating backup plate is provided with a positioning hole corresponding to a riveting profiling position of the profiling area;

s30: fixing the insulation backup plate on the profiling area, and pressing the riveting profiling pier head into a positioning hole of the insulation backup plate by using a butt-joint machine;

s40: electrifying the butt-welding machine, and applying axial acting force to the riveting profiling pier head through the butt-welding machine;

s50: and cutting and polishing the butt welding column of the riveting profiling pier head.

Preferably, the method further comprises:

s20: marking a riveting copying position of the copying area by using the insulating backup plate, and cleaning the riveting copying position;

s40: the time length of each electrifying of the butt-welding machine is 30-40 ms, and the welding current is 600-800A;

s60: and manually brushing paint and filling gaps on the periphery of the riveting profiling pier head, and then spraying paint on the whole profiling area.

The invention has the beneficial effects that:

1. according to the invention, the profiling side of the pier head main body is provided with the butt welding column, the welding side of the pier head main body is provided with the consumable contact and the molten plastic groove, and the consumable contact can be melted and flow into the molten plastic groove by applying welding current and welding pressure to the pier head main body through the matching of the butt welding column and the butt welding machine, so that the pier head main body and the ship body are welded and fixed; after the butt-welded column on the pier head main body is cut, riveting profiling of the external surface of the ship can be realized.

2. The riveting profiling pier head disclosed by the invention is arranged on a ship outer plate, can realize the appearance effect of ship riveting, and has the characteristics of low cost, convenience and quickness in construction, firm and reliable connection and consistent appearance effect with the actual riveted ship.

3. The installation method adopts a butt-welding connection method to install the riveting profiling pier head on the surface of the hull outer plate, and has the characteristics of simple operation and good repeatability; the installation method of the invention adopts the insulating backup plate and the strong magnetic pressing block to assist the construction, can quickly confirm the butt-welding construction position, reduces the deviation of manual operation and improves the working efficiency.

Drawings

Fig. 1 is one of the structural schematic diagrams of the riveting profiling pier head of the invention;

FIG. 2 is a second schematic view of the riveting profiling pier head of the present invention

FIG. 3 is a structural parameter diagram of the truncated cone shaped riveted profiling pier head of the present invention;

FIG. 4 is a structural parameter diagram of the round-headed rivet-profiling pier nose of the present invention;

fig. 5 is a schematic view of the installation of the riveting profiling pier head of the invention on the external surface of a ship;

FIG. 6 is a flow chart of the installation of the riveting profiling pier head of the invention on the external surface of a ship;

FIG. 7 is a front view of the insulated backup plate of the present invention;

FIG. 8 is a riveting profiling layout of a profiling area of the outer surface of a ship;

FIG. 9 is a structural parameter diagram of a 22mm truncated cone shaped riveting profiling pier head of the invention;

FIG. 10 is a structural parameter diagram of a 22mm round-headed rivet contoured pier head of the present invention;

fig. 11 is a structural parameter diagram of the 16mm round-head riveting profiling pier head of the invention.

The reference numbers in the figures illustrate that:

100. riveting profiling pier head

110. A pier nose main body;

120. bumping and welding the column;

130. melting and consuming the contact;

131. a columnar section;

132. a tapered section;

140. a plastic melting groove;

200. a profiling area;

300. an insulating backup plate;

310. and (6) positioning the holes.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and are not intended to limit the present invention.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

In an embodiment, as shown in fig. 1 to 11, a riveting copying pier head 100 is butt-welded to a copying region 200 of an outer plate of a ship, and can simulate the external surface of a riveted ship, thereby reproducing the appearance of the riveted ship. This riveting profile pier head 100 includes:

a pier head main body 110; the pier head main body 110 is made of a conductive material, one side of the pier head main body 110 is a profiling side and is used for simulating the appearance of a rivet, and the other side of the pier head main body 110 is a welding side and is used for being welded and connected with an outer plate of a ship;

a bump post 120; the butt-welding column 120 is integrally formed on the profiling side of the pier head main body 110, and the butt-welding column 120 plays roles of connection fixation and electric conduction when riveting the profiling pier head 100 for installation and fixation;

a consumable contact 130; the consumable contact 130 is integrally formed on the welding side of the pier head main body 110;

a molten plastic bath 140; the molten plastic groove 140 is formed on the welding side of the pier head main body 110, and when the riveting profiling pier head 100 is installed and fixed, the molten plastic groove 140 is used for containing molten liquid of the consumable contact 130, so that the welding side of the pier head main body 110 is attached to the surface of the ship outer plate, and the splashing condition of the molten liquid (metal liquid) is reduced.

According to the application, the touch welding column 120 is arranged on the profiling side of the pier head main body 110, the consumable contact 130 and the plastic melting groove 140 are arranged on the welding side of the pier head main body 110, and the consumable contact 130 can be melted and flows into the plastic melting groove 140 by applying welding current and welding pressure to the pier head main body 110 through the matching of the touch welding column 120 and the touch welding machine, so that the pier head main body 110 is welded and fixed with the hull outer plate; after the butt welding columns 120 on the pier head main body 110 are cut, riveting and profiling of the external surface of the ship can be realized.

In one embodiment, as shown in fig. 1 and 2, the molten plastic groove 140 is formed on the pier head main body 110 and located on the welding side of the pier head main body 110, the molten plastic groove 140 is an annular groove surrounding the consumable contact 130 for a circle, the annular groove transitions from the edge position of the pier head main body 110 to the edge position of the consumable contact 130 through an inward-inclined arc, and the volume of the molten plastic groove 140 is greater than the volume of the consumable contact 130. With the arrangement, when the riveting copying pier head 100 is fixedly installed, the consumable contact 130 is melted into molten metal under the action of welding current, and simultaneously, under the action of axial pressure, the molten metal can flow into the concave space of the molten plastic groove 140 and is used for filling the gap between the welding side of the pier head main body 110 and the surface of the hull outer plate, so that the welding side of the pier head main body 110 is fixedly connected with the hull outer plate, and the occurrence of metal splashing during butt welding is reduced.

In one embodiment, as shown in fig. 1-4, the consumable contact 130 includes a cylindrical section 131 and a tapered section 132 coaxially disposed, the cylindrical section 131 is integrally formed on the welding side of the pier body 110, and the tapered section 132 is integrally formed on the end of the cylindrical section 131. By the arrangement, one end of the consumable contact 130 is arranged to be conical, so that the riveting profiling pier head 100 is convenient to position during installation and fixation, the consumable contact 130 is also convenient to melt quickly during butt welding, and the riveting profiling pier head 100 is fixedly connected with the hull plate in a welding manner.

Preferably, the diameter d3=6mm to 8mm of the cylindrical section 131, and the height h2=1mm of the cylindrical section 131; the height h3=1mm of the conical section 132. With the arrangement, after the riveting copying pier head 100 is fixedly arranged on the ship outer plate in a butt-welding mode, the metal liquid formed by melting the consumable contact 130 connects the pier head main body 110 and the ship outer plate into a whole, so that the riveting copying pier head 100 can bear the axial load of 220 kg-230 kg, and meanwhile, the material is saved, and the production cost of the riveting copying pier head 100 is reduced.

In one embodiment, as shown in fig. 1, the pier head body 110 is entirely truncated cone-shaped, such that the riveting copying pier head 100 is a truncated cone-shaped riveting copying pier head 100; alternatively, as shown in fig. 2, the entirety of the pier head main body 110 is rounded, so that the riveting profiling pier head 100 is a rounded riveting profiling pier head 100. So set up, through the different settings to pier nose main part 110 appearance, richened riveting profile modeling pier nose 100's appearance for riveting profile modeling pier nose 100 can be used to the restoration and the rebuilding of the riveting boats and ships profile face of different riveting shapes.

Preferably, as shown in fig. 3 and 4, the parameters of the riveting profiling pier head 100 include the diameter d1 of the butt-welded column 120, the height H (axial length) of the butt-welded column 120; the diameter d2 of the welding end of the pier head main body 110, the height h (axial length) of the pier head main body 110, the chamfer R of the profiling side of the pier head main body 110, and the root remaining thickness a of the welding side of the pier head main body 110. Specifically, the method comprises the following steps: the diameter d1 of the collision welding column 120 is a fixed value, and the diameter d1=5mm; the height H (axial length) =12 mm-13 mm of the touch welding column 120; the diameter d2 of the welding side of the pier nose main body 110, the height h (axial length) =0.5 × d2 of the pier nose main body 110; the chamfer angle R of the profiling side of the pier head main body 110 is =2mm, and the thickness a of the root left at the welding side of the pier head main body 110 is =1mm; wherein, the parameters of the frustum-shaped riveting profiling pier head 100 further include that the inclination of the pier head main body 110 is 0.1 × d2.

In one embodiment, the pier head body 110 is made of steel. So set up, not only can reduce the manufacturing cost of riveting profile modeling pier nose 100, can also reduce the damage of rubbing the pier nose main part 110 that the operating mode caused such as berthing, help prolonging the life of boats and ships riveting profile.

In one embodiment, as shown in fig. 1-4, the pier head body 110, the butt-welded stud 120, the consumable contact 130, and the molten plastic groove 140 are integrally formed and coaxially disposed. So set up, adopt integrated into one piece structure, not only be convenient for rivet the batch manufacturing of profile modeling pier nose 100, still can save manufacturing cost.

In an embodiment, a method for installing a riveted contoured pier head, as shown in fig. 5 to 11, for welding the above-described riveted contoured pier head 100 to a surface of an outer panel of a ship and for simulating a riveted outer surface of a riveted ship, comprises the steps of:

s10: acquiring pier head parameters of the profiling area 200, manufacturing an insulating backup plate 300 according to the acquired pier head parameters, and arranging a positioning hole 310 corresponding to a riveting profiling position of the profiling area 200 on the insulating backup plate 300; the pitch of the positioning holes 310 on the insulating backup plate 300 is equal to the axial distance of the pier heads in the profiling area 200, and the aperture size of the positioning holes 310 on the insulating backup plate 300 is not smaller than the diameter of the head of a butt welding gun, so that an operator can press the riveting profiling pier head 100 into the positioning holes 310 of the insulating backup plate 300 by holding the butt welding gun. So set up, through the pier nose parameter and the design and manufacture who acquires and be used for carrying out the insulating backup plate 300 of fixing a position to riveting profile modeling position, can fix a position each riveting profile modeling position fast, reduce the manual operation deviation, improve work efficiency.

Preferably, the insulation backup plate 300 is a wood backup plate. So set up, not only be convenient for the production of insulating backup plate 300, also can reduce production cost, utilize the light characteristics of plank matter simultaneously, be convenient for fix insulating backup plate 300 on profile modeling area 200.

S20: all riveting profiling positions of the profiling area 200 are marked by means of scribing by using the insulating backup plate 300, and the riveting profiling positions are cleaned to remove primer, oil stains and water stains of each riveting profiling position. With the arrangement, the copying area 200 of the hull plate is cleaned, so that the riveting copying pier head 100 and the hull plate are conveniently welded and fixed, and the riveting appearance effect of the external surface of the ship can be further ensured.

S30: the method comprises the steps of fixing the insulation backup plate 300 on the profiling area 200 by using a strong magnetic press block (such as an electromagnet), ensuring that the positioning holes 310 on the insulation backup plate 300 correspond to the riveting profiling positions one by one, then placing the riveting profiling pier head 100 on a butt-welding machine gun head, pressing the riveting profiling pier head 100 into the positioning holes 310 of the insulation backup plate 300 by using a butt-welding machine, and ensuring that the consumable contact 130 of the riveting profiling pier head 100 penetrates through the positioning holes 310 of the insulation backup plate 300 to be abutted against the ship profiling area 200. With the arrangement, the insulation backup plate 300 can be quickly fixed and detached in the profiling area 200 under the magnetic attraction effect of the powerful magnetic pressing block and the ship outer plate, so that the welding efficiency is improved conveniently; the riveting profiling pier head 100 is pressed into the positioning hole 310 of the insulation backup plate 300 through the butt-welding machine gun head, so that the riveting profiling pier head 100 and the hull outer plate are in a state to be welded, and subsequent power-on welding operation is facilitated.

S40: switching on the current to electrify the butt-welding machine, applying axial acting force to the riveting profiling pier head 100 through the butt-welding machine so as to apply axial pressure to the pier head main body 110 while melting the consumable contact 130 by the current, welding and connecting the pier head main body 110 of the riveting profiling pier head 100 to the profiling area 200 of the ship after 2-3 s, and removing the butt-welding machine gun head. Wherein, butt-welding belongs to short-period welding, the welding time is 30-40 ms, and the welding current is 600-800A.

In the step, repeated butt-welding operation is required for many times until all the riveting copying pier heads 100 in the copying region 200 are installed and fixed; after butt welding is completed, the fitting degree of the pier head main body 110 and the profiling region 200 needs to be checked, namely the distance between the pier head main body 110 and the outer surface of the ship outer plate; if the fitting degree exceeds 1.5mm, the riveting copying pier head 100 needs to be knocked out and subjected to butt welding again.

S50: the butt-welded columns 120 of the riveted contoured pier 100 are cut and the cut surfaces are ground so that the pier body 110 of the riveted contoured pier 100 is truncated or rounded.

S60: the periphery of the riveting copying pier head 100 of the copying area 200 is manually painted, so that the paint is filled in the gap between the pier head main body 110 and the outer surface of the ship outer plate, and then the whole copying area 200 is sprayed with the paint, so that the riveting copying of the whole copying area 200 is completed. So set up, can guarantee that boats and ships planking has the riveting profile modeling effect of preferred.

The specific embodiment is as follows: when a 30-year riveted ship is rebuilt, in order to ensure that the appearance effect has the age feeling, the ship structure finally shows the riveting effect, namely, the riveting pier head exists in the visible region, if the riveting process is adopted for construction, the labor intensity is high, the construction period is long, and the cost is high, and the appearance of the ship structure can show the riveting effect by adopting the riveting copying pier head 100. In the embodiment, riveting profiling is selected for explaining the local area of the outer plate, as shown in fig. 5 to 11, the specific steps are as follows:

the first step is as follows: acquiring an original ship design drawing, and determining rivet arrangement and pier head basic parameters in the area; specifically, the ship relates to pier heads with three specifications, wherein the three specifications of the pier heads are respectively as follows: a round-truncated-cone-shaped pier head with the diameter of 22mm, a round-head-shaped pier head with the diameter of 22mm and a round-head-shaped pier head with the diameter of 16 mm.

The second step: comparing the simultaneous riveting ship with the standard, the height h of the pier head main body 110 of the round-head-shaped riveting profiling pier head 100 is not changed along with the diameter, and the height h is uniformly h =5mm; the height of the pier head main body 110 of the circular truncated cone type riveting copying pier head 100 is generally 1/2 of the diameter d2, the inclination is generally 1/10 of the diameter d2, and the chamfer R is a 2mm circular arc chamfer; the root a =1mm of all riveted copying pier heads 100. The parameter information of the stud welding 120, the consumable contact 130 and the molten plastic groove 140 is combined with the parameters of the pier head body 110 to determine the production parameters of each riveting profiling pier head 100.

The third step: the required number of riveting copying pier heads 100 with three specifications are produced in batches by a three-dimensional numerical control lathe, meanwhile, a batch of wooden insulating backup plates 300 are manufactured according to a rivet arrangement drawing on an original ship design drawing, and positioning holes 310 corresponding to rivet arrangement positions on the original ship design drawing are arranged on the insulating backup plates 300.

The fourth step: all riveted contour positions are identified at the corresponding areas of the hull plate using the insulating fence 300.

The fifth step: all riveting profiling positions are cleaned to remove primer, oil stains, water stains and the like of all the riveting profiling positions.

And a sixth step: butt welding construction; specifically, the method comprises the following steps: the method comprises the steps of fixing the insulating backup plate 300 on the profiling area 200 by using a strong magnetic pressing block (such as an electromagnet), then placing the riveting profiling pier head 100 on a butt-welding machine gun head, pressing the riveting profiling pier head 100 into a positioning hole 310 of the insulating backup plate 300 by using a butt-welding machine, and ensuring that a consumable contact 130 of the riveting profiling pier head 100 penetrates through the positioning hole of the insulating backup plate 300 to be abutted against the ship profiling area 200.

Switching on the current to electrify the butt-welding machine, applying axial acting force to the riveting profiling pier head 100 through the butt-welding machine so as to apply axial pressure to the pier head main body 110 while melting the consumable contact 130 by the current, welding and connecting the pier head main body 110 of the riveting profiling pier head 100 to the profiling area 200 of the ship after 2-3 s, and removing the butt-welding machine gun head.

Repeating the operations until all the riveting copying pier heads 100 in the copying region 200 are installed and fixed; after butt welding is completed, the fitting degree of the pier head main body 110 and the outer surface of the profiling area 200, namely the distance between the pier head main body 110 and the ship outer plate, needs to be checked; if the fitting degree exceeds 1.5mm, the riveting copying pier head 100 needs to be knocked out and subjected to butt welding again.

The seventh step: the butt-welded stud 120 of the riveted contoured pier 100 is cut and the cut surface is ground.

The eighth step: manually brushing paint on the periphery of the riveting copying pier head 100 for filling joints, and then spraying paint on the periphery of the riveting copying pier head and the surrounding structure to finish the riveting copying installation of the area.

Compared with the prior art, the method has the following beneficial technical effects:

after the riveting copying pier head 100 is butt-welded and connected to the outer surface of a welding ship, the same appearance effect as that of an actual riveting ship can be achieved; the installation process of the riveting copying pier head 100 is convenient to construct and firm and reliable in connection.

The method is more suitable for modern industrial systems, has low cost, good effect and durability and firmness, provides a new method for repairing the existing riveting ship with historical significance, is also suitable for copying or appearance repairing of other riveting steel structures, and has transportability.

This application adopts the decoration thinking of profile modeling, and mode through butt-joint will rivet profile modeling pier nose 100 and install on hull structure's surface, not only make the appearance effect that the boats and ships were riveted to the appearance face can be reached under the prerequisite of not implementing riveting technology, still realized big simple work progress of repetition in batches.

This application uses the insulating backup plate 300 that has locating hole 310 to carry out supplementary construction to fix insulating backup plate 300 in the construction area through powerful magnetic briquetting, can confirm the construction position fast, reduce the manual operation deviation, improve work efficiency.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims (8)

1. A method of installing a riveted contoured pier head for welding a riveted contoured pier head (100) to an outer panel of a vessel and simulating a riveted contour of a riveted vessel, the method comprising the steps of:

s10: acquiring pier head parameters of a ship profiling area (200), and manufacturing an insulating backup plate (300) according to the pier head parameters, wherein a positioning hole (310) corresponding to a riveting profiling position of the profiling area (200) is formed in the insulating backup plate (300);

s20: marking a riveting copying position of the copying region (200) by using the insulating backup plate (300), and cleaning the riveting copying position;

s30: fixing the insulating backup plate (300) on the profiling area (200) by using a powerful magnetic press block, enabling a positioning hole (310) in the insulating backup plate (300) to correspond to a riveting profiling position, and pressing the riveting profiling pier head (100) into the positioning hole (310) of the insulating backup plate (300) by using a butt-welding machine;

s40: energizing the butt-welding machine and applying an axial acting force to the riveting profiling pier head (100) through the butt-welding machine so as to melt the consumable contacts (130) and weld the pier head main body (110) to the profiling area (200) of the ship outer plate; s50: cutting and polishing a butt-welded column (120) of the riveting profiling pier head (100);

wherein the riveting profile pier head (100) comprises:

a pier head main body (110); the pier head main body (110) is made of a conductive material, one side of the pier head main body (110) is a profiling side, and the other side of the pier head main body is a welding side;

a bump-weld stud (120); the butt welding column (120) is integrally formed on the profiling side of the pier head main body (110);

a consumable contact (130); the consumable contact (130) is integrally formed on the welding side of the pier head main body (110);

a molten plastic tank (140); the melting and molding groove (140) is formed in the welding side of the pier head main body (110) and surrounds the melting and consuming contact (130) for a circle, and the volume of the melting and molding groove (140) is larger than that of the melting and consuming contact (130) and is used for containing the melting liquid of the melting and consuming contact (130).

2. A method of installing a riveted copying pier head according to claim 1, characterized in that the consumable contact (130) comprises a cylindrical section (131) and a conical section (132) which are coaxially arranged, the cylindrical section (131) is integrally formed on the welding side of the pier head body (110), and the conical section (132) is integrally formed on the end of the cylindrical section (131).

3. The method for installing a riveted copying pier head according to claim 2, characterized in that the diameter d3 of the cylindrical section (131) is between 6 and 8mm, and the height h2 of the cylindrical section (131) is between 1 and 2 mm; the height h3=1mm of the conical section (132).

4. The method for installing a riveted copying pier head according to claim 1, characterized in that the pier head main body (110) is in a truncated cone shape or a round head shape as a whole.

5. The method for installing the riveting copying pier head according to claim 1, wherein the pier head main body (110) is made of steel.

6. The method for installing the riveting profiling pier head according to claim 1, wherein the diameter d1=5mm of the welding column (120), and the height H = 12-13 mm of the welding column (120).

7. The method for installing a riveted contoured pier according to claim 1, characterized in that the pier body (110), the butt-welded column (120) and the consumable contact (130) are arranged coaxially.

8. The method of installing a riveted contoured pier head according to claim 1, further comprising:

s40: the time length of each electrifying of the butt-welding machine is 30-40 ms, and the welding current is 600-800A;

s60: the periphery of the riveting profiling pier head (100) is subjected to manual painting joint filling, and then the profiling area (200) is integrally sprayed with paint.

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