CN116352228A

CN116352228A - Steel pipe welding device

Info

Publication number: CN116352228A
Application number: CN202310323757.3A
Authority: CN
Inventors: 黄荣国; 于文站; 张洪雷
Original assignee: Shanghai Feiting Pipe Manufacture Co ltd
Current assignee: Shanghai Feiting Pipe Manufacture Co ltd
Priority date: 2023-03-29
Filing date: 2023-03-29
Publication date: 2023-06-30

Abstract

The application relates to the technical field of steel pipe welding, especially, relate to a steel pipe welding device, the on-line screen storage device comprises a base, it is provided with two sets of supporting components that are used for supporting the steel pipe to slide on the base upper surface, be provided with the peripheral welding component that is used for welding steel pipe periphery side gap on the upper surface of base, the one end of base is provided with the mounting panel, set up on the mounting panel and be used for stretching into the stay tube in the steel pipe inner chamber, the tip of stay tube is provided with first bonding tool, be provided with first welding machine on the lateral wall of base, the welding wire of first welding machine is sent into first bonding tool through the stay tube, still be provided with on the base and be used for driving the first drive assembly that supporting component slided on the base, through such setting, realize welding the inside and outside side to the welding seam simultaneously, reduced welding deformation, promoted welding quality.

Description

Steel pipe welding device

Technical Field

The application relates to the technical field of steel pipe welding, in particular to a steel pipe welding device.

Background

It is known that the existing steel pipe manufacturer performs operations such as cutting and welding on the steel pipe during the process of manufacturing the steel pipe. The utility model discloses a current utility patent of bulletin number CN218487570U, discloses an electric welding equipment relates to electric welding technical field, including the welding machine main part, the surface mounting of welding machine main part has interactive panel, the surface mounting of welding machine main part has the interface, the outside of welding machine main part rotates and is connected with the connecting plate, the bottom of connecting plate rotates and is connected with the supporting wheel, the holding tank has been seted up on the surface of welding machine main part. According to the utility model, through the arrangement of the connecting plate, a worker can pull the locating pin out of the locating hole, then rotate the connecting plate, rotate the supporting wheel out of the accommodating groove, enable the supporting wheel to contact the ground, then loosen the locating pin, enable the tension spring to pull the locating pin to be inserted into the locating hole at the position, fix the connecting plate, and enable the supporting wheel to support the welding machine main body, so that the worker can push the welding machine main body to move in a labor-saving manner, the labor intensity of the worker when moving the welding machine main body is reduced, and the worker can use the welding machine main body conveniently.

In the known welding process, the inner surface and the outer surface of the pipe are required to be welded, and a worker holds the welding head disclosed in the scheme in each welding process, so that the peripheral side of the pipe is welded in advance, and the inner side is welded again after the welding of the peripheral side is finished. In the single-side welding process, the welding part is easy to deform towards one side which is not welded, and the welding quality is greatly influenced by the welding mode.

Disclosure of Invention

In order to improve the welding quality of the connecting part between two pipe fittings and improve the production quality of the whole pipe fitting, the application provides a steel pipe welding device.

The application provides a steel pipe welding set adopts following technical scheme:

the utility model provides a steel pipe welding set, includes the base, it is provided with two sets of supporting components that are used for supporting the steel pipe to slide on the base upper surface, be provided with the peripheral welding component that is used for welding steel pipe periphery side gap on the upper surface of base, the one end of base is provided with the mounting panel, set up the stay tube that is arranged in stretching into the steel pipe inner chamber on the mounting panel, the tip of stay tube is provided with first bonding tool, be provided with first welding machine on the lateral wall of base, the welding wire of first welding machine is sent into first bonding tool through the stay tube, still be provided with the first drive assembly that is used for driving the supporting component to slide on the base.

Through adopting above-mentioned technical scheme, support and install the steel pipe through supporting component in advance to make the steel pipe can rotate in the top of base, weld the peripheral gap of two sections steel pipes through peripheral welding component, make the one end that the mounting panel was kept away from to the stay tube stretch into to the inner chamber of steel pipe, and make first bonding tool be located inboard welding seam department, thereby realize simultaneously carrying out welding to the inside and outside of welding seam, reduced welding deformation, promoted welding quality.

Optionally, the support tube comprises a first tube fixed on the mounting plate and a second tube sliding in the first tube, the first welding head is fixed at the end part of the second tube extending out of the first tube, and the side wall of the first tube is connected with a limit bolt in a threaded manner.

Through adopting above-mentioned technical scheme, through the flexible volume of adjusting the second pipe, can realize adjusting the length of whole stay tube to the staff of being convenient for carries out the regulation of welding distance.

Optionally, the peripheral welding assembly includes a vertical frame, a third pipe sliding on the vertical frame, a second welding head fixed at the lower end of the third pipe, and a second welding machine arranged on the side wall of the base, wherein welding wires conveyed by the second welding machine are conveyed to the second welding head through the third pipe, and an adjusting assembly for adjusting the height of the third pipe is arranged on the vertical frame.

By adopting the technical scheme, in the welding process, the second welding machine feeds the welding wire to the second welding head, the welding wire passing through the third pipe reaches the second welding head, the welding wire is melted by the current of the second welding head and flows to the peripheral welding seam, and the whole steel pipe is in a rotating state in the welding process, so that the welding of one side of the welding seam of the steel pipe is realized.

Optionally, the adjusting component comprises a connecting rod fixed on the side wall of the third pipe, a first screw rod rotatably connected to the vertical frame, and a hand wheel fixed at the upper end of the first screw rod, wherein one end, far away from the steel pipe, of the connecting rod is in threaded connection with the first screw rod.

Through adopting above-mentioned technical scheme, when adjusting the height of third pipe, rotate the hand wheel for hand wheel and first lead screw synchronous rotation, thereby make the connecting rod slide downwards along vertical direction.

Optionally, the supporting component includes two supporting rings, the ring gear of coaxial fixed in one of them supporting ring outside, sets up a plurality of butt parts on the supporting ring, still is provided with the second drive assembly who is used for driving the supporting ring rotation between two adjacent groups of supporting components.

Through adopting above-mentioned technical scheme, with the steel pipe centre gripping at the intracavity of holding ring, realize spacing with the steel pipe through the butt part for the steel pipe is coaxial setting with the holding ring, makes two holding rings synchronous rotation through the second drive assembly, thereby realizes driving the steel pipe and rotates.

Optionally, the abutting part comprises a push rod connected to the side wall of the supporting ring through threads and an arc-shaped plate connected to the end part of the push rod in a rotating mode, and a flexible pad is fixed on the inner side of the arc-shaped plate.

Through adopting above-mentioned technical scheme, when fixed spacing in the supporting ring with the steel pipe, rotate the ejector pin for flexible pad laminating is in the outside of steel pipe, thereby realizes carrying out the location centre gripping to the steel pipe of different diameter specifications.

Optionally, the second driving assembly comprises a double-shaft extending motor and a gear coaxially fixed at the end part of the rotating shaft of the double-shaft extending motor, and the gear is meshed with the outer gear ring of the supporting ring.

Through adopting above-mentioned technical scheme, when order about two sections steel pipes to rotate, through order about the pivot rotation of biax extension motor for gear engagement ring gear rotates, thereby drives two sections steel pipes synchronous rotation respectively as two initiative ring gears.

Optionally, the first drive assembly includes the bottom plate of sliding installation on the base upper surface, rotates the second lead screw of connection on the base, the position-adjusting motor of fixed mounting on the base lateral wall, bottom plate and second lead screw threaded connection, the pivot and the coaxial fixed connection of second lead screw of position-adjusting motor.

Through adopting above-mentioned technical scheme, through driving the pivot rotation of positioning motor for the second lead screw rotates, thereby the bottom plate removes along the length direction of base. For the spiral weld joint, the positions of the first welding head and the second welding head can be controlled simultaneously by adjusting the movement of the bottom plate and the rotation of the steel pipe, so that the spiral weld joint is welded.

In summary, the present application includes at least one of the following beneficial technical effects:

the inner side and the outer side of the welding line are welded simultaneously, so that welding deformation is reduced, and welding quality is improved. For the spiral weld joint, the positions of the first welding head and the second welding head can be controlled simultaneously by adjusting the movement of the bottom plate and the rotation of the steel pipe, so that the spiral weld joint is welded.

Drawings

Fig. 1 is a schematic overall structure of the present embodiment.

Fig. 2 is a schematic view of the base structure in the present embodiment.

Fig. 3 is a schematic view of the overall structure of the support assembly in this embodiment.

Fig. 4 is a schematic view of the whole structure of the support tube in this embodiment.

Fig. 5 is a schematic view showing the overall structure of the peripheral welding assembly in the present embodiment.

Reference numerals: 1. a base; 2. a support assembly; 3. a peripheral welding assembly; 4. a mounting plate; 5. a support tube; 6. a first welding head; 7. a first welder; 8. a first drive assembly; 9. a first tube; 10. a second tube; 11. a limit bolt; 12. a vertical frame; 13. a third tube; 14. a second welding head; 15. a second welder; 16. an adjustment assembly; 17. a connecting rod; 18. a first lead screw; 19. a hand wheel; 20. a support ring; 21. a gear ring; 22. an abutment member; 23. a second drive assembly; 24. a push rod; 25. an arc-shaped plate; 26. a flexible pad; 27. a double-shaft extension motor; 28. a gear; 29. a bottom plate; 30. a second lead screw; 31. and a position-adjusting motor.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-5.

The embodiment of the application discloses a steel pipe welding device.

Referring to fig. 1, a steel pipe welding device comprises a base 1, wherein two groups of support assemblies 2 are arranged on the base 1, and a first driving assembly 8 for driving the support assemblies 2 to slide along the length direction of the base 1 is arranged on the base 1.

Referring to fig. 1 and 2, the first driving assembly 8 includes a bottom plate 29, a groove is formed on the upper surface of the base 1, the bottom plate 29 slides in the groove, the first driving assembly 8 further includes a second screw 30 and a positioning motor 31, and the second screw 30 is rotatably connected in an inner cavity of the groove. The positioning motor 31 is fixedly arranged in the inner cavity of the groove, the rotating shaft of the positioning motor 31 is fixedly connected with the second screw rod 30 coaxially, and the bottom plate 29 is in threaded connection with the second screw rod 30.

Referring to fig. 2 and 3, the support assembly 2 is provided on the upper surface of the base plate 29, and the support assembly 2 includes a support ring 20, a ring gear 21, and an abutment member 22 provided on the support ring 20, the support ring 20 being provided as a circular ring, the support ring 20 being rotatably coupled to the upper surface of the base plate 29. The middle part of the supporting ring 20 is hollow and is mainly used for penetrating steel pipes.

Referring to fig. 3, the support assemblies 2 are arranged in two groups, and the two groups of support assemblies 2 are symmetrically arranged. One group is used for clamping one steel pipe, and the other group is used for clamping the other steel pipe. In the welding process, two steel pipes which are oppositely arranged are mutually attached. So that the welding seam is positioned at the joint of the two steel pipes.

Referring to fig. 3, each set of support assemblies 2 includes a ring gear 21, and the ring gear 21 is coaxially fixed to the support ring 20 near the weld joint. And the number of the abutting parts 22 on the single supporting ring 20 is at least three, the optimal number is at least three in the embodiment, and the abutting parts 22 are uniformly arranged at intervals.

Referring to fig. 3, the abutment member 22 includes a push rod 24 and arc plates 25, the push rod 24 is screwed on the side wall of the support ring 20, the arc plates 25 are rotatably connected with the push rod 24, and a flexible pad 26 is fixed in the circular arc inner wall of each arc plate 25. When the steel pipe is penetrated in the support ring 20, the ejector rod 24 is rotated, so that the plurality of arc plates 25 simultaneously move towards the outer side of the steel pipe until the flexible pad 26 is extruded on the outer side of the steel pipe. The flexible pad 26 in this embodiment is a polyurethane pad. The steel pipe and the supporting ring 20 are relatively fixed by the clasping of the plurality of arc plates 25.

Referring to fig. 1 and 3, in order to synchronously drive the two steel pipes to rotate simultaneously, a second driving assembly 23 for driving the support ring 20 to rotate is further provided between the adjacent two ring gears 21. The second driving assembly 23 includes a biaxial stretching motor 27 and a gear 28, and the biaxial stretching motor 27 is fixedly mounted on the upper surface of the base plate 29. The number of the gears 28 is two, the two gears 28 are respectively and coaxially and fixedly arranged at the end part of the rotating shaft of the double-shaft extension motor 27, and the gears 28 are meshed with the gear ring 21. Thereby driving the rotation shaft of the double shaft extension motor 27 to rotate, and the four support rings 20 to rotate synchronously.

Referring to fig. 3 and 4, the end of the base 1 is provided with a mounting plate 4, the mounting plate 4 is vertically arranged, a support tube 5 is arranged on the side wall of the mounting plate 4, the support tube 5 is horizontally arranged, and the support tube 5 is arranged as a telescopic tube. The support tube 5 comprises a first tube 9 and a second tube 10. The first tube 9 is fixed on the side wall of the mounting plate 4, one end of the second tube 10 slides in the inner cavity of the first tube 9, and the other end of the second tube 10 extends out of the first tube 9 towards the support ring 20. In order to facilitate the adjustment of the expansion and contraction amount between the first pipe 9 and the second pipe 10, a limit bolt 11 is further arranged on the side wall of the first pipe 9, and after the second pipe 10 is adjusted in place, the limit bolt 11 is rotated so that one end of the limit bolt 11 extending into the first pipe 9 abuts against the outer side wall of the second pipe 10, and therefore the first pipe 9 and the second pipe 10 are relatively fixed.

Referring to fig. 2 and 4, a first welding head 6 is mounted at one end of a second tube 10 extending out of a first tube 9, and a first welding machine 7 is provided on a side wall of the base 1, the first welding machine 7 is a two-station welding machine with a wire feeder, and welding wire is fed through the first tube 9 and the second tube 10 by the first welding machine 7 and finally fed to a portion of the first welding head 6. In the welding process, the second pipe 10 extends into the welding seam in the inner cavity of the steel pipe, so that in the rotating process of the steel pipe, the welding wire is melted after the first welding head 6 is electrified, and the inner side seam welding of the steel pipe is realized.

Referring to fig. 2 and 5, a peripheral welding assembly 3 for welding a gap at the outer circumferential side of the steel pipe is provided on the upper surface of the base 1, the peripheral welding assembly 3 includes a vertical frame 12 and a third pipe 13, the vertical frame 12 is fixedly installed on the upper surface of the bottom plate 29, the third pipe 13 is vertically provided, and the peripheral welding assembly 3 further includes a second welding head 14 and a second welding machine 15. The second welder 15 is also a two-station welder with a wire feeder. The fed welding wire of the second welding machine 15 passes through the third tube 13 and finally is fed to the location of the second welding head 14. The second welding head 14 faces to the welding seam of the periphery of the steel pipe, so that the welding of the peripheral seam of the steel pipe is realized in the process of driving the two sections of steel pipes to rotate.

Referring to fig. 5, in order to achieve welding of steel pipes having different diameters, an adjusting unit 16 for adjusting the height of the third pipe 13 is provided to the vertical frame 12. The adjusting assembly 16 comprises a connecting rod 17, a first lead screw 18 and a hand wheel 19, one end of the connecting rod 17 is fixed on the outer side of the third pipe 13, and the other end of the connecting rod 17 vertically slides on the side wall of the vertical frame 12. The first lead screw 18 is vertically arranged, the first lead screw 18 is rotatably connected to the vertical frame 12, and a hand wheel 19 is coaxially fixed to the upper end of the first lead screw 18. The end of the connecting rod 17 remote from the third tube 13 is screwed with a first screw 18. Thereby, in the process of driving the hand wheel 19 to rotate, the screw rod synchronously rotates, and the third pipe 13 vertically moves up and down.

The implementation principle of the steel pipe welding device in the embodiment of the application is as follows: when two steel pipes are required to be welded, the two sections of steel pipes are inserted into the two groups of support rings 20 in advance, the ejector rod 24 is rotated, the arc plate 25 moves towards the direction of the steel pipes until the flexible pad 26 is pressed against the outer sides of the steel pipes, at this time, the second welding head 14 is positioned at the splicing gap of the outer sides of the two sections of steel pipes, and the first welding head 6 extends into one of the steel pipes and is positioned at the splicing gap of the inner sides of the two sections of steel pipes. The first welding machine 7 and the second welding machine 15 are started, and meanwhile, the rotating shafts of the double-shaft extension motor 27 are driven to rotate, and the two sections of steel pipes synchronously rotate to realize welding around the inner and outer circumference of the steel pipes. When the weld joint is spiral, the rotation of the steel pipe can be controlled by driving the positioning motor 31, the first welding head 6 and the second welding head 14. Thereby realizing the spiral gap welding.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides a steel pipe welding set, includes base (1), its characterized in that: the welding machine comprises a base (1), and is characterized in that two groups of supporting components (2) for supporting steel pipes are arranged on the upper surface of the base (1) in a sliding mode, peripheral welding components (3) for welding gaps on the periphery sides of the steel pipes are arranged on the upper surface of the base (1), a mounting plate (4) is arranged at one end of the base (1), a supporting pipe (5) for extending into an inner cavity of the steel pipes is arranged on the mounting plate (4), a first welding head (6) is arranged at the end portion of the supporting pipe (5), a first welding machine (7) is arranged on the side wall of the base (1), welding wires of the first welding machine (7) are fed into the first welding head (6) through the supporting pipe (5), and a first driving component (8) for driving the supporting components (2) to slide on the base (1) is further arranged on the base (1).

2. A steel pipe welding apparatus according to claim 1, wherein: the support tube (5) comprises a first tube (9) fixed on the mounting plate (4) and a second tube (10) sliding in the first tube (9), the first welding head (6) is fixed at the end part of the second tube (10) extending out of the first tube (9), and the side wall of the first tube (9) is connected with a limit bolt (11) in a threaded mode.

3. A steel pipe welding apparatus according to claim 1, wherein: the peripheral welding assembly (3) comprises a vertical frame (12), a third pipe (13) sliding on the vertical frame (12), a second welding head (14) fixed at the lower end of the third pipe (13) and a second welding machine (15) arranged on the side wall of the base (1), welding wires conveyed by the second welding machine (15) are conveyed to the second welding head (14) through the third pipe (13), and an adjusting assembly (16) for adjusting the height of the third pipe (13) is arranged on the vertical frame (12).

4. A steel pipe welding apparatus according to claim 3, wherein: the adjusting assembly (16) comprises a connecting rod (17) fixed on the side wall of the third pipe (13), a first screw rod (18) rotatably connected to the vertical frame (12) and a hand wheel (19) fixed at the upper end of the first screw rod (18), and one end, far away from the steel pipe, of the connecting rod (17) is in threaded connection with the first screw rod (18).

5. A steel pipe welding apparatus according to claim 1, wherein: the support assembly (2) comprises two support rings (20), a gear ring (21) coaxially fixed on the outer side of one support ring (20), a plurality of abutting parts (22) arranged on the support ring (20), and a second driving assembly (23) for driving the support ring (20) to rotate is further arranged between two adjacent groups of support assemblies (2).

6. A steel pipe welding apparatus according to claim 5, wherein: the abutting part (22) comprises a push rod (24) connected to the side wall of the supporting ring (20) through threads, and an arc-shaped plate (25) connected to the end part of the push rod (24) in a rotating mode, and a flexible pad (26) is fixed on the inner side of the arc-shaped plate (25).

7. A steel pipe welding apparatus according to claim 5, wherein: the second driving assembly (23) comprises a double-shaft extending motor (27) and a gear (28) coaxially fixed at the end part of the rotating shaft of the double-shaft extending motor (27), and the gear (28) is meshed with an outer gear ring (21) of the supporting ring (20).

8. A steel pipe welding apparatus according to claim 1, wherein: the first driving assembly (8) comprises a bottom plate (29) which is slidably arranged on the upper surface of the base (1), a second screw rod (30) which is rotatably connected to the base (1) and a positioning motor (31) which is fixedly arranged on the side wall of the base (1), the bottom plate (29) is in threaded connection with the second screw rod (30), and a rotating shaft of the positioning motor (31) is fixedly connected with the second screw rod (30) in a coaxial mode.