Steel pipe inner wall surfacing tool and welding equipment

Abstract

The utility model relates to a steel pipe inner wall surfacing tool and welding equipment. The technical problem that an existing steel pipe is poor in supporting stability in the surfacing welding process is solved. The surfacing welding tool comprises a cylindrical tool barrel for a steel pipe to penetrate, a plurality of steel pipe supporting sets are sequentially arranged from the circumferential outer side of one end of the tool barrel to the circumferential outer side of the other end of the tool barrel in the axial direction, and each steel pipe supporting set comprises a plurality of supporting columns distributed in the circumferential direction of the tool barrel. One end of the supporting column penetrates into the circumferential inner side of the tool barrel in the radial direction through an adjustable mounting structure and abuts against the outer wall of the steel pipe, so that the steel pipe and the tool barrel are coaxially arranged. The tool has the advantages that the mounting stability of the steel pipe in the tool barrel can be guaranteed through the steel pipe supporting assembly, and the deformation phenomenon of the steel pipe in the welding process can be effectively reduced. The tool rotating supporting structure can guarantee the supporting effect on the tool barrel. The tool rotating assembly can drive the tool barrel and the steel pipe to rotate, and the welding effect of the steel pipe is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to welding technical field, concretely relates to a kind of steel pipe inner wall surfacing and welding equipment. BACKGROUND

[0002] In modern industrial production, many fields have put forward very high requirements on the performance and service life of steel pipes. For example, in the petroleum, chemical industry, electric power and other industries, as the key component for conveying various media, steel pipes need to have good wear resistance, corrosion resistance and high temperature resistance, etc. Steel pipe inner wall surfacing technology emerges as the times require, which effectively improves the comprehensive performance of steel pipes by cladding a layer of alloy material with special properties on the inner wall of steel pipes, to meet the harsh use requirements under different working conditions. The existing steel pipe inner wall surfacing equipment is prone to deformation during welding, affecting the dimensional accuracy of the steel pipe. Moreover, the existing steel pipe inner wall surfacing equipment has poor support effect on the steel pipe, which can easily cause the steel pipe to fall off and affect the stability of the steel pipe welding. SUMMARY

[0003] The utility model aims at the above problem, provide a kind of steel pipe inner wall surfacing.

[0004] Another object of the utility model is to provide a welding equipment for the above problems.

[0005] To achieve the above object, the utility model adopts the following technical scheme: the utility model provides a kind of steel pipe inner wall surfacing, the surfacing tool includes a tool barrel in a cylindrical shape and for the steel pipe to pass through, a plurality of steel pipe support groups are sequentially arranged on the outer side of the tool barrel from one end to the other end in the axial direction, and each steel pipe support group includes a plurality of support columns arranged along the circumference of the tool barrel, the support column is radially inserted into the inner side of the tool barrel through an adjustable mounting structure at one end, and abuts against the outer wall of the steel pipe to make the steel pipe coaxially arranged with the tool barrel, the tool barrel can facilitate positioning and placing the steel pipe and play a protective role, the support column can facilitate the steel pipe to be fixedly arranged in the tool barrel, and the support column can effectively prevent the steel pipe from deforming during welding, ensuring the processing effect of the steel pipe, and the adjustable mounting structure can facilitate the installation of the support column.

[0006] In the above-mentioned steel pipe inner wall surfacing tool, the tool barrel is in an equal-diameter cylindrical shape, and the inner diameter of the tool barrel is greater than the outer diameter of the steel pipe, which can facilitate the placement of the steel pipe and improve the placement efficiency.

[0007] In the above-mentioned steel pipe inner wall surfacing tool, the steel pipe support groups are sequentially arranged at equal intervals or non-equal intervals along the tool barrel, which can improve the support effect of the steel pipe support groups on the steel pipe and ensure the welding effect of the steel pipe.

[0008] In the steel pipe inner wall surfacing tool mentioned above, the support columns are circumferentially uniformly distributed or circumferentially non-uniformly distributed, and the support columns in the two adjacent steel pipe support groups are respectively arranged in one-to-one correspondence or staggered along the axial direction of the tool cylinder, which can further increase the support area of the support columns on the steel pipe, effectively disperse the thermal stress of the steel pipe during welding, improve the overall structural stability, and ensure the anti-deformation effect of the steel pipe.

[0009] In the steel pipe inner wall surfacing tool mentioned above, the adjustable mounting structure includes mounting holes arranged on the circumferential outer side of the tool cylinder, the support columns are in the form of bolts, and the support columns are connected with the mounting holes through threads, the size of the mounting holes is suitable for the columnar part of the support columns, and the connection stability between the support columns and the tool cylinder through the mounting holes can be ensured.

[0010] A welding device includes a horizontally arranged welding base, one end of the welding base is provided with a steel pipe positioning seat, the upper end of the welding base is provided with a plurality of tool rotating support structures arranged in sequence in the axial direction and used for placing tool cylinders, one end of the tool cylinder passes through a tool mounting hole of the steel pipe positioning seat, and the welding base is connected with a welding assembly capable of moving axially and reciprocally in the steel pipe through a horizontal reciprocating driving mechanism. The steel pipe can be positioned and placed in the tool cylinder through the steel pipe positioning seat, the tool cylinder can be supported through the tool rotating support structure, and the tool cylinder and the steel pipe can be rotated to ensure the welding effect of the steel pipe.

[0011] In the welding device mentioned above, the horizontal reciprocating driving mechanism includes a plurality of guide steel wires arranged in the axial direction in the steel pipe, a welding gun push rod is arranged on the guide steel wire in a sliding manner, a driving motor is arranged on the side of the steel pipe positioning seat away from the tool cylinder, the driving motor is connected with a push rod driving assembly, the welding gun push rod is arranged on the guide steel wire in a sliding manner through the push rod driving assembly, the driving motor can drive the push rod driving assembly to drive the welding gun push rod to move horizontally in the steel pipe, and the guide steel wire can guide the welding gun push rod.

[0012] In the welding device mentioned above, the welding assembly includes a welding gun mounting bracket arranged on one side of the welding gun push rod, and a welding gun is arranged on the welding gun mounting bracket and extends towards the inner wall of the steel pipe. The welding gun can be installed through the welding gun mounting bracket, and the inner wall of the steel pipe can be welded through the welding gun.

[0013] In the welding equipment, the tool rotating supporting structure comprises a plurality of tool supporting groups arranged on one side of the steel pipe positioning seat and equidistantly arranged, a tool rotating assembly is arranged on the tool supporting group and abuts against the tool cylinder, the tool supporting group comprises two oppositely arranged tool supporting seats, and the tool supporting seat is fixedly connected with the welding base.

[0014] In the welding equipment, the tool rotating assembly comprises rotating parts arranged on the tool supporting seat, the rotating part is slidingly arranged on the tool supporting seat, and a rotating wheel is arranged on the rotating part and abuts against the tool cylinder, the rotating wheel can be conveniently installed through the rotating part, the spacing between the rotating parts can be adjusted according to the radius of the tool cylinder, and the supporting effect and rotating effect of the rotating wheel on the tool cylinder are ensured.

[0015] Compared with the prior art, the welding equipment has the advantages that:

[0016] 1. The steel pipe supporting assembly can ensure the installation stability of the steel pipe in the tool cylinder and effectively reduce the deformation of the steel pipe during the welding process.

[0017] 2. The tool rotating supporting structure can ensure the supporting effect of the tool cylinder.

[0018] 3. The tool rotating assembly can drive the tool cylinder to rotate, so that the steel pipe can be driven to rotate, and the welding effect of the steel pipe is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structural schematic view of the utility model;

[0020] Figure 2 is a structural schematic view of the adjustable mounting structure in the utility model;

[0021] Figure 3 is a structural schematic view of the welding base in the utility model.

[0022] In the figure: steel pipe 1, tool cylinder 2, steel pipe supporting assembly 3, supporting column 31, adjustable mounting structure 4, mounting hole 41, welding base 5, steel pipe positioning seat 51, tool rotating supporting structure 6, tool supporting group 61, tool supporting seat 611, horizontal reciprocating driving mechanism 7, guide steel wire 71, welding gun push rod 72, driving motor 73, welding assembly 8, welding gun mounting frame 81, tool rotating assembly 9, rotating part 91, rotating wheel 92. DETAILED DESCRIPTION

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] like Figure 1 , Figure 2 As shown, this is a steel pipe inner wall overlay welding fixture. The welding fixture includes a cylindrical fixture body 2 for a steel pipe 1 to pass through. Several sets of steel pipe support groups 3 are arranged axially from one end of the fixture body 2 to the other end. Each steel pipe support group 3 includes several support columns 31 distributed along the circumference of the fixture body 2. One end of the support column 31 is inserted radially into the inner circumference of the fixture body 2 through an adjustable installation structure 4 and abuts against the outer wall of the steel pipe 1, so that the steel pipe 1 and the fixture body 2 are coaxially arranged. The fixture body 2 can facilitate the positioning and placement of the steel pipe 1 and can play a protective role. The support columns 31 can facilitate the fixing of the steel pipe 1 in the fixture body 2 and can effectively prevent the steel pipe 1 from deforming during the welding process, ensuring the processing effect of the steel pipe 1. The adjustable installation structure 4 can facilitate the installation of the support columns 31.

[0025] Specifically, the tooling cylinder 2 is a cylindrical shape with a constant diameter and the inner diameter of the tooling cylinder 2 is larger than the outer diameter of the steel pipe 1, which facilitates the placement of the steel pipe 1 and improves the placement efficiency.

[0026] Among them, the steel pipe support group 3 is arranged at equal intervals or at non-equal intervals along the tooling cylinder 2, which can improve the support effect of the steel pipe support group 3 on the steel pipe 1 and ensure the welding effect of the steel pipe 1.

[0027] like Figure 1 , Figure 2 As shown, the support columns 31 are evenly distributed or non-uniformly distributed around the circumference. The support columns 31 in two adjacent steel pipe support groups 3 are respectively arranged in a one-to-one correspondence or staggered arrangement along the axial direction of the tooling cylinder 2. This can further increase the support area of ​​the support columns 31 on the steel pipe 1, effectively disperse the thermal stress of the steel pipe 1 during welding, improve the overall structural stability, and ensure the deformation resistance of the steel pipe.

[0028] Furthermore, the adjustable mounting structure 4 includes mounting holes 41 located on the outer side of the tooling cylinder 2. The support column 31 is bolt-shaped and is connected to the mounting hole 41 by threads. The size of the mounting hole 41 is suitable for the columnar part of the support column 31, which can ensure the stability of the connection between the support column 31 and the tooling cylinder 2 through the mounting hole 41.

[0029] like Figure 1 , Figure 2 , Figure 3As shown in the figure, a welding device, comprising a horizontally arranged welding base 5, the welding base 5 is provided with a steel pipe positioning seat 51 at one end, and the upper end of the welding base 5 is provided with a plurality of axially arranged and sequentially arranged tool rotating support structures 6 for placing tool cylinder 2, and the tool cylinder 2 is movably arranged in the tool mounting hole 41 of the steel pipe positioning seat 51, and the welding base 5 is connected with the welding assembly 8 which can move axially in the steel pipe 1 through the horizontal reciprocating drive mechanism 7, the steel pipe 1 can be conveniently positioned and placed in the tool cylinder 2 through the steel pipe positioning seat 51, and the tool cylinder 2 can be supported through the tool rotating support structure 6, and the tool cylinder 2 and the steel pipe 1 can be rotated, and the welding effect of the steel pipe 1 is guaranteed.

[0030] Specifically, the horizontal reciprocating drive mechanism 7 comprises a plurality of axially extending guide wires 71 arranged in the steel pipe 1, the guide wires 71 are provided with a welding gun push rod 72 which is slidably arranged on the guide wire 71, the steel pipe positioning seat 51 is provided with a driving motor 73 away from the tool cylinder 2 side, the driving motor 73 is connected with the push rod driving assembly, and the welding gun push rod 72 is slidably arranged on the guide wire 71 through the push rod driving assembly, the driving motor 71 can drive the push rod driving assembly to drive the welding gun push rod 72 to move horizontally in the steel pipe 1, and the guide wire 71 can guide the welding gun push rod 72.

[0031] Among them, the welding assembly 8 comprises a welding gun mounting bracket 81 arranged on one side of the welding gun push rod 72, the welding gun mounting bracket 81 is provided with a welding gun extending towards the inner wall of the steel pipe 1, the welding gun mounting bracket 81 can be conveniently installed, and the welding gun can be used for welding the inner wall of the steel pipe 1.

[0032] Combined Figure 1 , Figure 3 As shown in the figure, the tool rotating support structure 6 comprises a plurality of tool support groups 61 arranged on one side of the steel pipe positioning seat 51 and arranged at equal intervals, the tool support group 61 is provided with a tool rotating assembly 9 abutting against the tool cylinder 2, and the tool support group 61 comprises two oppositely arranged tool support seats 611, the tool support seat 611 is fixedly connected with the welding base 5, the tool support group 61 can guarantee the support effect of the tool cylinder 2, and the tool support seat 611 can further improve the support effect of the tool cylinder 2, and further guarantee the welding effect of the steel pipe 1.

[0033] Further, the tool rotating assembly 9 comprises a rotating part 91 arranged on the tool support seat 611, the rotating part 91 is slidably arranged on the tool support seat 611, and the rotating part 91 is provided with a rotating wheel 92 abutting against the tool cylinder 2, the rotating part 91 can conveniently install the rotating wheel 92, and the distance between the rotating parts 91 can be adjusted according to the radius of the tool cylinder 2, so as to guarantee the support effect and rotating effect of the rotating wheel 92 on the tool cylinder 2.

[0034] The principle of the embodiment is that the tool cylinder 2 is arranged on the tool rotating support structure 6, the steel pipe 1 is arranged in the tool cylinder 2 through the steel pipe positioning seat 51, the steel pipe 1 is fixedly connected with the tool cylinder 2 through the steel pipe support group 3 and the adjustable mounting structure 4, the tool cylinder 2 can be driven to rotate through the tool rotating assembly 9, and the steel pipe 1 can be synchronously driven to rotate, and the welding assembly 8 can be horizontally movably arranged in the steel pipe 1 through the horizontal reciprocating driving mechanism 7 to weld the steel pipe 1.

[0035] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

[0036] Although the terms such as steel pipe 1, tool cylinder 2, steel pipe support group 3, support column 31, adjustable mounting structure 4, mounting hole 41, welding base 5, steel pipe positioning seat 51, tool rotating support structure 6, tool support group 61, tool support seat 611, horizontal reciprocating driving mechanism 7, guide steel wire 71, welding gun push rod 72, driving motor 73, welding assembly 8, welding gun mounting rack 81, tool rotating assembly 9, rotating part 91, rotating wheel 92, etc. are used more frequently herein, but the possibility of using other terms is not excluded. The use of these terms is only for more convenient description and explanation of the essence of the present application; any kind of additional limitation is contrary to the spirit of the present application.

Claims

1. A steel pipe inner wall overlaying tool characterized by, The present overlaying tool comprises a tool cylinder (2) in a cylindrical shape for the steel pipe (1) to pass through, a plurality of steel pipe supporting groups (3) are arranged axially in sequence from the circumferential outside of one end to the circumferential outside of the other end of the tool cylinder (2), and each steel pipe supporting group (3) comprises a plurality of supporting columns (31) arranged in a circumferential distribution along the tool cylinder (2), one end of the supporting column (31) passes through the circumferential inside of the tool cylinder (2) radially through an adjustable mounting structure (4) and abuts against the outer wall of the steel pipe (1) so that the steel pipe (1) is coaxially arranged with the tool cylinder (2).

2. The steel pipe inner wall overlaying tooling according to claim 1, characterized in that, The tool cylinder (2) is in an equal-diameter cylindrical shape and the inner diameter of the tool cylinder (2) is greater than the outer diameter of the steel pipe (1).

3. The steel pipe inner wall overlaying tooling of claim 1, wherein, The steel pipe supporting groups (3) are arranged in sequence along the tool cylinder (2) at equal intervals or at non-equal intervals.

4. The steel pipe inner wall overlaying tooling of claim 1, wherein, The supporting columns (31) are arranged in a circumferential uniform distribution or a circumferential non-uniform distribution, and the supporting columns (31) in the adjacent two steel pipe supporting groups (3) are arranged in axial one-to-one correspondence or staggered arrangement along the tool cylinder (2).

5. The steel pipe inner wall overlaying tooling of claim 1, wherein, The adjustable mounting structure (4) comprises a mounting hole (41) arranged on the circumferential outside of the tool cylinder (2), the supporting column (31) is in a bolt shape, and the supporting column (31) is connected with the mounting hole (41) through threads.

6. A welding device using the steel pipe inner wall surfacing tool of any one of claims 1-5, comprising a horizontal welding base (5), one end of the welding base (5) being provided with a steel pipe positioning seat (51), characterized in that, The welding base (5) is provided with a plurality of tool rotating supporting structures (6) arranged in axial sequence at the upper end and used for placing the tool cylinder (2), one end of the tool cylinder (2) passes through the tool mounting hole (41) of the steel pipe positioning seat (51) movably, and the welding base (5) is connected with a welding assembly (8) capable of moving axially in the steel pipe (1) through a horizontal reciprocating driving mechanism (7).

7. The welding apparatus of claim 6, wherein, The horizontal reciprocating driving mechanism (7) comprises a plurality of guide steel wires (71) arranged axially in the steel pipe (1), the guide steel wire (71) is provided with a welding gun push rod (72) arranged slidingly on the guide steel wire (71), the steel pipe positioning seat (51) is provided with a driving motor (73) on the side away from the tool cylinder (2), the driving motor (73) is connected with a push rod driving assembly, and the welding gun push rod (72) is arranged slidingly on the guide steel wire (71) through the push rod driving assembly.

8. The welding apparatus of claim 7, wherein, The welding assembly (8) comprises a welding gun mounting frame (81) arranged on one side of the welding gun push rod (72), and the welding gun mounting frame (81) is provided with a welding gun extending towards the inner wall of the steel pipe (1).

9. The welding apparatus of claim 6, wherein, The tool rotating supporting structure (6) comprises a plurality of tool supporting groups (61) arranged equidistantly on one side of the steel pipe positioning seat (51), the tool supporting group (61) is provided with a tool rotating assembly (9) arranged abutting against the tool cylinder (2), and the tool supporting group (61) comprises two oppositely arranged tool supporting seats (611), and the tool supporting seat (611) is fixedly connected with the welding base (5).

10. The welding apparatus of claim 9, wherein, The tool rotating assembly (9) comprises a rotating part (91) arranged on the tool support seat (611), the rotating part (91) is arranged on the tool support seat (611) in a sliding mode, and the rotating part (91) is provided with a rotating wheel (92) abutting against the tool barrel (2).

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