CN102398118A

CN102398118A - Single-surface welding and double-surface forming device and method for pipeline port

Info

Publication number: CN102398118A
Application number: CN2010102793353A
Authority: CN
Inventors: 陈耕田
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-09-13
Filing date: 2010-09-13
Publication date: 2012-04-04

Abstract

The invention discloses a single-surface welding double-surface forming device and a single-surface welding double-surface forming method for a pipeline port. The device is characterized by consisting of an iron pipe (1), a supporting frame (2), and circular disks (3, 5); the supporting frame (2) is fixed on the iron pipe (1); the circular disk (3) and the iron pipe (1) are sleeved in a sliding way and can be fastened tightly through a fastening piece (3); the outer edge of the inner side of the circular disk (5) is provided with a poking block (6) and is fixedly connected with the iron pipe (1) through a nut; and the method comprises the following steps of: loading the circular disk (5) into the pipeline, coiling a spring steel band (8) into a circle and loading the spring steel band (8) into the pipeline, loading a welding gasket (7) on the outer circumference of the spring steel band, allowing the poking block (6) to enter a notch (9), pushing a circular disk (4) toward the welding gasket (7) and fixing, pushing the circular disk (4) by the iron pipe so as to push the gasket to a welding seam, and fixing the welding gasket on the welding seam by tension of the spring steel band.

Description

Pipe joint single face welding double-face forming equipment and method

Technical field: the present invention relates to a kind of pipe joint welder and method, especially a kind of welder and method of single face welding double-faced forming.

Background technology: pipeline is as the transport of high-pressure medium, and is strict especially to the welding quality requirement, and traditional pipe joint welding method all is to adopt special-purpose pipeline welding equipment to carry out two-sided welding; Because the apparatus expensive volume is big; Can only carry out the large diameter pipeline welding, and because the field construction environment is ever-changing, the mobile carrying of welding equipment is difficulty very; And middle-size and small-size pipeline can only be to carry out the single face welding in the pipeline outside, is difficult to reach the quality requirement of butt welded seam.

Summary of the invention: in order to address the above problem, the invention discloses a kind of pipe joint welder and method, to realize single face welding double-faced forming; Not only weldquality is good, and technology is also very simple, and installs only tens jin of weights; Move carrying easily, be suitable for the wild environment of any complicacy, realize that the technical scheme that above-mentioned purpose is taked is characterised in that: the commissure that is assemblied in inner-walls of duct with welding backing; Weld outside, realize single face welding double-faced forming; This device is characterised in that; Bracing frame (2), disk (3,5) by iron pipe (1), band roller are formed, and the radius of bracing frame (2), disk (3,5) is slightly less than the inside radius of pipeline, and the bracing frame (2) of band roller is fixed on the iron pipe (1); Disk (3) and iron pipe (1) are the slip suits; It is fastening to pass through securing member (3), and the inboard outer of disk (5) is set (6) ahead, and is fastenedly connected through nut and iron pipe (1); Assembly method is, with the interface alignment of pipeline (10), and leaves weld seam (11), with disk (5) pipeline of packing into; Spring steel band (8) is rolled into the circle pipeline of packing into, and the spring steel band periphery is loaded onto welding backing ((7), and make and set (6) ahead and get into breach (9); Then disk (4) is pushed in the pipeline, be clipped in the middle welding backing, and leave an amount of gap; Withstand disk (4) and fastening through securing member (3) again, shift the commissure onto and the molten groove of welding backing and weld seam are alignd through iron pipe promotion disk (4) and then liner at last, under the tension force effect of spring steel band; Be pressed on the commissure to welding backing, rotate iron pipe and drive disk (5) and rotate simultaneously, set ahead and can promote welding backing and be close to; Rotate iron pipe again after welding one section, promote welding backing and rotate, the commissure that breach is forwarded to welded; During taking-up, as long as be pulled outwardly iron pipe, disk (5) is just take welding backing and spring steel band out of, and this device is fit to the assembling with the pipe joint welding backing of any bore; The large diameter pipeline that can get into for the people; Also can get into pipeline, directly stick on welding backing the commissure of inwall, or be stretched in the commissure to welding backing with spring steel band by operating personnel; Beneficial effect of the present invention is: can make pipe joint realize single face welding double-faced forming; And apparatus and method are all very simple, promptly save cost and are convenient to again move carrying, further specify below in conjunction with accompanying drawing and embodiment.

Accompanying drawing is a structure drawing of device

Embodiment 1, shown in the drawings being characterised in that: by iron pipe (1), and the bracing frame (2) of band roller; Disk (3,5) is formed, and the radius of bracing frame (2), disk (3,5) is slightly less than the inside radius of pipeline, and bracing frame (2) is fixed on the iron pipe (1); (disk) 3) and iron pipe (1) be the slip suit; It is fastening to pass through securing member (3), and the inboard outer of disk (5) is set (6) ahead, and is fastenedly connected through nut and iron pipe (1); Assembly method is, the interface of pipeline (10) to it, and is left weld seam (11), sends into disk (5) in the pipeline through iron pipe; Spring steel band (8) is rolled into circle packs in the pipeline, load onto welding backing ((7), and make and set (6) ahead and get into breach (9) in the spring steel band periphery; Then disk (4) is pushed in the pipeline, be clipped in the middle welding backing, and leave an amount of gap; Withstand disk (4) and fastening through securing member (3) again, promote iron pipe at last and drive disk (4) and shift welding backing onto commissure and align, under the tension force effect of spring steel band with weld seam; Be pressed on the commissure to welding backing, rotate iron pipe, disk (5) rotates simultaneously; Set ahead and can promote welding backing and be close to, rotate iron pipe after welding one section, the commissure that breach is forwarded to weld; During taking-up, as long as be pulled outwardly iron pipe, disk (5) is just can take welding backing and spring steel band out of.

Embodiment 2, for large diameter pipeline, can also be got in the pipeline by operating personnel; Directly stick on welding backing the commissure of inwall; Perhaps be stretched in the commissure to welding backing, by operating personnel welding backing taken out again after welding, because the holder lining effect of welding backing with spring steel band; Welding fluid just can be frozen into the weld seam of smooth in the molten groove of welding backing, thereby realizes single face welding double-faced forming.

Claims

1. pipe joint single face welding double-face forming equipment is characterised in that with method: be assemblied in the commissure of inner-walls of duct with welding backing, weld outside, realize that single face welds double-faced forming.

2. the characteristic of pipe joint single face welding double-face forming equipment and method also is: bracing frame (2), disk (3,5) by iron pipe (1), band roller are formed; The radius of bracing frame (2), disk (3,5) is slightly less than the inside radius of pipeline; The bracing frame (2) of band roller is fixed on the iron pipe (1), and disk (3) and iron pipe (1) are the slip suits, and it is fastening to pass through securing member (3); The inboard outer of disk (5) is set (6) ahead, and is fastenedly connected through nut and iron pipe (1).

3. the characteristic of pipe joint single face welding double-face forming equipment and method also is: the interface of pipeline (10) is alignd, and leave weld seam (11), with disk (5) pipeline of packing into; Spring steel band (8) is rolled into the circle pipeline of packing into, and the spring steel band periphery is loaded onto welding backing (7), and makes and set (6) ahead and get into breach (9); Then disk (4) is pushed in the pipeline, be clipped in the middle welding backing, and leave an amount of gap; Withstand disk (4) and fastening through securing member (3) again, shift the commissure onto and the molten groove of welding backing and weld seam are alignd through iron pipe promotion disk (4) and then liner at last, under the tension force effect of spring steel band; Be pressed on the commissure to welding backing; Rotate iron pipe and drive disk (5) and rotate simultaneously, set ahead and can promote welding backing and be close to, rotate iron pipe again after welding one section; The promotion welding backing rotates, the commissure that breach is forwarded to welded; During taking-up, as long as be pulled outwardly iron pipe, disk (5) is just take welding backing and spring steel band out of.

4. pipe joint single face welding double-face forming equipment and method are characterised in that: the large diameter pipeline that can get into for the people; Also can get into pipeline by operating personnel; Directly stick on welding backing the commissure of inwall, or be stretched in the commissure to welding backing with spring steel band.