Full-automatic spiral steel pipe girth welding device

Abstract

The utility model relates to the technical field of steel pipe welding, and provides a full-automatic spiral steel pipe girth welding device which comprises a base, a vertical plate A and a vertical plate B. The full-automatic spiral steel pipe girth welding device further comprises a welding mechanism, the two ends of a spiral steel pipe are erected on a limiting column A and a limiting column B respectively, the two ends of the steel pipe are limited through two rotating plates under the action of an electric hydraulic cylinder, and then the spiral steel pipe is welded by rotating a threaded rod. A limiting column A and a limiting column B abut against the inner top and the inner bottom of the steel pipe correspondingly, then a reciprocating lead screw is rotated, a movable plate is moved to the to-be-welded position of the steel pipe, an electric telescopic rod drives a ring welding gun to make contact with the to-be-welded position of the steel pipe, and the electric telescopic rod drives the ring welding gun to make contact with the to-be-welded position of the steel pipe by starting a motor and the ring welding gun. By means of the technical scheme, the spiral steel pipe welding device solves the problem that in the prior art, when spiral steel pipes of various sizes are welded, the welding distances of the welding guns are different, and the welding quality of the spiral steel pipes is affected.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe welding, and specifically to a full-automatic spiral steel pipe ring welding device. Background Art

[0002] During the processing of steel pipes, it is usually necessary to perform welding reinforcement on some weak parts of the steel pipes. This welding reinforcement process usually involves setting a fixing ring on the weak parts of the outer peripheral end face of the steel pipe, and then using a welding gun to align the welding head with the edge of the fixing ring and the contact point between the steel pipe and perform ring welding. In this way, the steel pipe wall is thickened in time through the ring welding process, and the weak parts of the steel pipe are reinforced in a granular form.

[0003] A patent with patent number CN217291175U discloses a fully automatic spiral steel pipe ring welding device, including a base, which is a rectangular solid body, and a steel pipe placing assembly is arranged on the base; the steel pipe placing assembly includes a fixed seat, a hydraulic cylinder, a sliding seat and a steel pipe placing groove; the fixed seat is arranged on the base, and one end of the fixed seat is connected to the hydraulic cylinder base; the hydraulic cylinder pushing end is connected to the sliding seat; a steel pipe placing groove is opened on the top of the sliding seat; a steel pipe ring welding assembly is arranged on one side of the steel pipe placing groove on the base.

[0004] However, the fully automatic spiral steel pipe ring welding device in the above patent still has certain problems during use. When welding spiral steel pipes of various sizes, the welding spacing of the welding gun will also be different, affecting the welding quality of the spiral steel pipe. For this reason, a fully automatic spiral steel pipe ring welding device is proposed. Utility Model Content

[0005] The utility model provides a full-automatic spiral steel pipe ring welding device, which solves the problem in the related art that when welding spiral steel pipes of various sizes, the welding intervals of the welding guns are different, which affects the welding quality of the spiral steel pipes.

[0006] The technical solution of the utility model is as follows:

[0007] A fully automatic spiral steel pipe ring welding device, comprising a base for stabilizing the device and a vertical plate A and a vertical plate B for supporting the installation, wherein the vertical plate A is fixedly connected to the base, and the vertical plate B is slidably connected to the base, and further comprising:

[0008] The welding mechanism includes a movable plate, a support block, a reciprocating screw and a limit assembly. The movable plate is arranged in an arc shape. The support block is fixedly connected to one side of the movable plate. The bottom of the support block is slidably connected to the base. The reciprocating screw passes through one end of the bottom of the support block and is threadedly connected to the support block. The two ends of the reciprocating screw pass through the two sides of the base respectively through the support block and are rotatably connected to the base. One end of the reciprocating screw is fixedly connected to a handwheel. The limit assembly is provided with two groups, and the two groups of the limit assemblies are respectively arranged on the opposite sides of the vertical plate A and the vertical plate B.

[0009] Preferably, the limit assembly includes a rotating plate, a limit column A, a limit column B and a threaded rod. The middle part of the rotating plate is rotatably connected to the vertical plate B. One end of the limit column A and the limit column B are respectively arranged in a slide groove opened on one side of the rotating plate, and are slidably connected to the inner wall of the slide groove. The limit column A and the limit column B are symmetrically arranged along the middle part of the slide groove. The threaded rod passes through the limit column A and the limit column B and extends into one end of the slide groove, and is respectively threadedly connected to the limit column A and the limit column B. Both ends of the threaded rod pass through the limit column A and the limit column B, pass through the rotating plate respectively, and are rotatably connected to the rotating plate, and the two ends of the threaded rod are arranged with threads in opposite directions.

[0010] Preferably, an electric telescopic rod is fixedly connected to the top and bottom of the movable plate respectively, and a ring welding gun is installed on one end of the output shaft of the electric telescopic rod respectively, and one end of the welding gun heads of the two ring welding guns corresponds to the top of the limit column A and the bottom of the limit column B respectively.

[0011] Preferably, one end of the rotating plate rotatably connected to the vertical plate A is fixedly connected to one end of the motor output shaft, and the motor is fixedly connected to a side of the vertical plate A away from the rotating plate.

[0012] Preferably, one end of the bottom of the vertical plate A is fixedly connected to an electric hydraulic cylinder, and one end of the output shaft of the electric hydraulic cylinder is fixedly connected to the bottom of the vertical plate B.

[0013] Preferably, moving wheels are installed at the bottom of the support block and at both ends of the bottom of the vertical plate B, and sliding grooves corresponding to the moving wheels are opened on the base.

[0014] The working principle and beneficial effects of the utility model are:

[0015] 1. In the utility model, the two ends of the spiral steel pipe to be circumferentially welded are respectively mounted on two limit columns A and limit column B, and the electric hydraulic cylinder drives the vertical plate B to move close to the vertical plate A, so that the two ends of the spiral steel pipe are limited under the action of the two rotating plates, and then the threaded rod is rotated to make the limit column A and the limit column B respectively contact the top and bottom of the spiral steel pipe, and then the reciprocating screw is rotated to make the support block drive the moving plate to the steel pipe to be welded, and then the electric telescopic rod drives the circumferential welding gun to contact the steel pipe to be welded, and by starting the motor and the circumferential welding gun, the steel pipe is synchronously welded by the two circumferential welding guns during the rotation process, so as to realize rapid and comprehensive circumferential welding of the spiral steel pipe, so as to achieve the purpose of avoiding different welding spacings when welding spiral steel pipes of different sizes, which affects the welding quality of the steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a side view of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the limit assembly of the utility model;

[0020] Figure 4 It is a partial stereogram of the utility model;

[0021] In the figure: 1. base; 2. vertical plate A; 3. vertical plate B; 4. welding mechanism; 5. moving plate; 6. supporting block; 7. reciprocating screw; 8. rotating plate; 9. limit column A; 10. limit column B; 11. threaded rod; 12. motor; 13. electric hydraulic cylinder; 14. electric telescopic rod; 15. ring welding gun; 16. moving wheel. DETAILED DESCRIPTION

[0022] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1

[0024] like Figure 1~Figure 4As shown, this embodiment proposes a fully automatic spiral steel pipe ring welding device, including a base 1 for stabilizing the device and a vertical plate A2 and a vertical plate B3 for supporting the installation, the vertical plate A2 is fixedly connected to the base 1, and the vertical plate B3 is slidably connected to the base 1, and also includes:

[0025] Welding mechanism 4, welding mechanism 4 includes a movable plate 5, a support block 6, a reciprocating screw 7 and a limit assembly. The movable plate 5 is arranged in an arc shape. The support block 6 is fixedly connected to one side of the movable plate 5. The bottom of the support block 6 is slidably connected to the base 1. The reciprocating screw 7 passes through one end of the bottom of the support block 6 and is threadedly connected to the support block 6. The two ends of the reciprocating screw 7 pass through the two sides of the base 1 respectively, and are rotatably connected to the base 1. One end of the reciprocating screw 7 is fixedly connected to a handwheel. There are two groups of limit assemblies, and the two groups of limit assemblies are respectively arranged on the opposite side of the vertical plate A2 and the vertical plate B3.

[0026] Preferably, the limiting assembly includes a rotating plate 8, a limiting column A9, a limiting column B10 and a threaded rod 11, the middle of the rotating plate 8 is rotatably connected to the vertical plate B3, one end of the limiting column A9 and the limiting column B10 are respectively arranged inside the slide groove opened on one side of the rotating plate 8, and are slidably connected to the inner wall of the slide groove, the limiting column A9 and the limiting column B10 are symmetrically arranged along the middle of the slide groove, the threaded rod 11 passes through one end of the limiting column A9 and the limiting column B10 extending into the slide groove, and is respectively threadedly connected to the limiting column A9 and the limiting column B10, the threaded rod 11 passes through the limiting column A9 and the limiting column B10 at both ends and passes through the rotating plate 8, and is rotatably connected to the rotating plate 8, and the two ends of the threaded rod 11 are arranged with threads in opposite directions. The purpose of this arrangement is to achieve the purpose of enhancing the stability of the spiral steel pipe during rotation by rotating the threaded rod 11 so that the limiting column A9 and the limiting column B10 are respectively in conflict with the inner top and inner bottom of the spiral steel pipe.

[0027] Preferably, the top and bottom of the movable plate 5 are respectively fixedly connected with an electric telescopic rod 14, and one end of the output shaft of the electric telescopic rod 14 is respectively installed with a ring welding gun 15, and one end of the welding gun head of the two ring welding guns 15 corresponds to the top of the limit column A9 and the bottom of the limit column B10 respectively. The purpose of this arrangement is to achieve the purpose of driving the ring welding gun 15 to contact the top and bottom of the steel pipe to be welded by the electric telescopic rod 14.

[0028] Preferably, one end of the rotating plate 8 rotatably connected to the vertical plate A2 is fixedly connected to one end of the output shaft of the motor 12, and the motor 12 is fixedly connected to the side of the vertical plate A2 away from the rotating plate 8. The purpose of this arrangement is to achieve the purpose of rotating the spiral steel pipes connected by the two sets of limit assemblies driven by the motor 12.

[0029] In this embodiment, the two ends of the spiral steel pipe to be circumferentially welded are respectively mounted on two limit columns A9 and limit column B10, and the electric hydraulic cylinder 13 drives the vertical plate B3 to move close to the vertical plate A2, so that the two ends of the spiral steel pipe are limited under the action of the two rotating plates 8, and then the threaded rod 11 is rotated to make the limit column A9 and the limit column B10 respectively contact the top and bottom of the spiral steel pipe, and then the reciprocating screw 7 is rotated to make the support block 6 drive the moving plate 5 to move to the steel pipe to be welded, and then the electric telescopic rod 14 drives the circumferential welding gun 15 to contact the steel pipe to be welded. By starting the motor 12 and the circumferential welding gun 15, the steel pipe is synchronously welded by the two circumferential welding guns 15 during the rotation process, so as to realize rapid and comprehensive circumferential welding of the spiral steel pipe, so as to avoid different welding spacings when welding spiral steel pipes of different sizes, which affects the welding quality of the steel pipe.

[0030] Example 2

[0031] like Figure 1~Figure 4 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that one end of the bottom of the vertical plate A2 is fixedly connected to an electric hydraulic cylinder 13, and one end of the output shaft of the electric hydraulic cylinder 13 is fixedly connected to the bottom of the vertical plate B3.

[0032] Preferably, moving wheels 16 are installed at the bottom of the support block 6 and at both ends of the bottom of the vertical board B3, and the base 1 is provided with sliding grooves corresponding to the moving wheels 16. The purpose of this arrangement is to achieve the purpose of facilitating the movement of the vertical board B3 and the support block 6 through the arrangement of the moving wheels 16.

[0033] In this embodiment, the electric hydraulic cylinder 13 is provided to facilitate the limited rotation of spiral steel pipes of different lengths.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fully automatic spiral steel pipe girth welding device, comprising a base (1) for stabilizing the device and a vertical plate A (2) and a vertical plate B (3) for supporting the installation, wherein the vertical plate A (2) is fixedly connected to the base (1), and the vertical plate B (3) is slidably connected to the base (1), characterized in that: Also includes: A welding mechanism (4), the welding mechanism (4) comprising a movable plate (5), a support block (6), a reciprocating screw (7) and a limit assembly, the movable plate (5) being arranged in an arc shape, the support block (6) being fixedly connected to one side of the movable plate (5), the bottom of the support block (6) being slidably connected to the base (1), the reciprocating screw (7) passing through one end of the bottom of the support block (6) and being threadedly connected to the support block (6), the two ends of the reciprocating screw (7) passing through the support block (6) respectively passing through two sides of the base (1) and being rotatably connected to the base (1), one end of the reciprocating screw (7) being fixedly connected to a hand wheel, the limit assembly being arranged in two groups, the two groups of the limit assembly being arranged on opposite sides of the vertical plate A (2) and the vertical plate B (3), respectively.

2. A fully automatic spiral steel pipe ring welding device according to claim 1, characterized in that: The limiting assembly comprises a rotating plate (8), a limiting column A (9), a limiting column B (10) and a threaded rod (11); the middle portion of the rotating plate (8) is rotatably connected to the vertical plate B (3); one end of the limiting column A (9) and the limiting column B (10) are respectively arranged in a slide groove opened on one side of the rotating plate (8) and are slidably connected to the inner wall of the slide groove; the limiting column A (9) and the limiting column B (10) are symmetrically arranged along the middle portion of the slide groove; one end of the threaded rod (11) passes through the limiting column A (9) and the limiting column B (10) and extends into the slide groove, and is respectively threadedly connected to the limiting column A (9) and the limiting column B (10); the two ends of the threaded rod (11) pass through the limiting column A (9) and the limiting column B (10) and respectively pass through the rotating plate (8) and are rotatably connected to the rotating plate (8); the two ends of the threaded rod (11) are arranged with threads in opposite directions.

3. The fully automatic spiral steel pipe ring welding device according to claim 1 is characterized in that: An electric telescopic rod (14) is fixedly connected to the inner top and the inner bottom of the movable plate (5), respectively; a ring welding gun (15) is mounted on one end of the output shaft of the electric telescopic rod (14), and one end of the welding gun heads of the two ring welding guns (15) corresponds to the top of the limit column A (9) and the bottom of the limit column B (10), respectively.

4. The fully automatic spiral steel pipe ring welding device according to claim 1 is characterized in that: One end of the rotating plate (8) rotatably connected to the vertical plate A (2) is fixedly connected to one end of the output shaft of the motor (12), and the motor (12) is fixedly connected to a side of the vertical plate A (2) away from the rotating plate (8).

5. The fully automatic spiral steel pipe ring welding device according to claim 1 is characterized in that: One end of the bottom of the vertical plate A (2) is fixedly connected to an electric hydraulic cylinder (13), and one end of an output shaft of the electric hydraulic cylinder (13) is fixedly connected to the bottom of the vertical plate B (3).

6. The fully automatic spiral steel pipe ring welding device according to claim 1 is characterized in that: Moving wheels (16) are respectively installed at the bottom of the support block (6) and at both ends of the bottom of the vertical plate B (3), and sliding grooves corresponding to the moving wheels (16) are opened on the base (1).

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