A silo weld auxiliary device and welding method thereof

Abstract

The present invention discloses a silo weld welding auxiliary device, comprising an inner contour plate and an outer contour plate; the inner contour plate is sleeved inside the outer contour plate, and the outer side surface of the inner contour plate is also provided with a slide groove extending along the plate body; and the inner side surface of the outer contour plate is provided with a slide rod corresponding to the position of the slide groove, and the slide rod is clamped in the slide groove so that the inner contour plate and the outer contour plate can slide relative to each other. The welding method of this device is to set a matching contour plate on the inner side of the weld, wrap the inner side of the weld as a whole through the contour plate, and continuously introduce inert gas into the inside of the contour plate to drive out the oxygen inside the weld, so that the inert gas wraps the inner side of the weld as a whole, so that when the welding equipment is welding on the outer side of the weld, there is no oxygen inside the weld, and no oxidation reaction will occur, so that the inner side of the weld is flat and smooth, meeting the requirements of the silo for the weld.

Description

Technical Field

[0001] The invention relates to a weld welding tool, in particular to a silo weld welding auxiliary device and a welding method thereof. Background Art

[0002] When welding the silo assembly and the silo plates butt-welding, the welds are usually welded on both sides respectively; welding on both sides will cause the two sides of the weld to be very uneven; therefore, the existing welding technology mostly uses one-side welding to weld the welds; when welding, welding is only performed on the outside of the weld, and after welding only on the outside of the weld, the inside of the weld will be relatively flat, but during welding, the inside of the weld will still produce an oxidation reaction with oxygen under high temperature conditions, resulting in unevenness on the inside of the weld, which cannot meet the requirement of flatness of the weld on the inside of the silo. Summary of the invention

[0003] The purpose of the present invention is to provide a silo weld auxiliary device to address the deficiencies in the prior art.

[0004] Technical solution: The technical solution adopted by the present invention to solve the problem is: a silo weld welding auxiliary device, including an inner contour plate and an outer contour plate; the inner contour plate is mounted inside the outer contour plate, and the outer side surface of the inner contour plate is also provided with a slide groove extending along the plate body; and the inner side surface of the outer contour plate is provided with a slide rod corresponding to the position of the slide groove, and the slide rod is clamped in the slide groove so that the inner contour plate and the outer contour plate can slide relative to each other; the front end portion of the inner contour plate is also equipped with a front end sealing plate, and the front end sealing plate is provided with a front end joint for installing and connecting an inert gas machine; and the rear end end of the outer contour plate is equipped with a rear end hollow plate corresponding to the front end sealing plate.

[0005] Preferably, a circular groove extending outward is provided inside the slide groove; and a limiting ball used in conjunction with the circular groove is installed at the end of the slide rod; the slide rod extends into the slide groove, and the limiting ball is placed in the circular groove.

[0006] Preferably, the inner contour plate and the outer contour plate are configured as arc-shaped plate structures or L-shaped plate structures.

[0007] Preferably, the outer side surface of the inner contour plate is also provided with a slide rod with a round ball; and the inner side surface of the outer contour plate is provided with a slide groove with a round groove inside for use with the slide rod.

[0008] Preferably, the outer side surface of the inner contour plate is also embedded with a long iron sheet arranged parallel to the plate body; and the outer side surface of the outer contour plate is also provided with a mounting groove corresponding to the position of the iron sheet; a detachable magnet is arranged in the mounting groove.

[0009] The present invention also provides a welding method for a silo weld auxiliary device, comprising the following steps:

[0010] 1) Adjust the position of the fixed silo plate according to the requirements of the silo, form a weld position between the two silo plates, clean the weld, and place the two ends of the inner and outer contour plates of the welding auxiliary device against the two silo plates respectively;

[0011] 2) According to the length of the weld between the two silo plates, adjust the relative positions of the inner contour plate and the outer contour plate, so that the front end sealing plate of the front end of the inner contour plate is clamped at the front end of the weld, and the rear end hollow plate of the rear end of the outer contour plate is clamped at the rear end of the weld; so that the welding auxiliary device as a whole wraps the inner end of the weld;

[0012] 3) After the positions of the inner and outer contour plates are determined, the relative positions of the two contour plates are fixed by the iron sheet on the outer side of the inner contour plate and the detachable iron block installed on the outer contour plate; and the clamping devices are respectively installed at the front end of the inner contour plate and the rear end of the outer contour plate to fix them on the silo steel plate, and the inner end of the weld is wrapped as a whole;

[0013] 4) An inert gas generator is installed externally on the front joint of the front sealing plate of the inner contour plate; the inert gas generator is started to continuously fill the contour formed by the inner contour plate and the outer contour plate with inert gas, and the inert gas enters from the front sealing plate at the front end and escapes from the rear hollow plate at the rear end; the inert gas continuously enters to drive out all the oxygen in the contour, so that the inside of the weld is wrapped by the continuously flowing inert gas;

[0014] 5) Use electric welding equipment to weld on the outside of the weld, and continuously introduce inert gas during welding. After the welding of the outside of the weld is completed, continue to introduce inert gas until the weld is completely cooled, and remove the welding auxiliary device.

[0015] Beneficial effects: Compared with the prior art, the present invention has the following advantages:

[0016] (1) The welding method of the device is to set a matching contour plate on the inner side of the weld, and the inner side of the weld is completely wrapped by the contour plate, and inert gas is continuously introduced into the inner side of the contour plate to drive out the oxygen inside the weld, so that the inert gas completely wraps the inner side of the weld. In this way, when the welding equipment is welding on the outer side of the weld, there is no oxygen inside the weld, and no oxidation reaction occurs, so that the inner side of the weld is flat and smooth, meeting the requirements of the silo for the weld;

[0017] (2) The device wraps the weld seam with inner and outer contour plates. The inner and outer contour plates are butt-jointed and installed with a slide rod with a limiting ball and a slide groove with a limiting groove. The inner and outer contour plates are relatively movable, so the relative positions of the inner and outer contour plates can be adjusted according to the length of the weld seam to adapt to weld seams of different lengths. In addition, a long strip of iron sheet is arranged on the inner contour plate, and a detachable magnet is arranged on the outer contour plate. After the positions of the inner and outer contour plates are determined, the magnet is placed in the installation groove, and the magnet attracts the iron sheet on the inner contour plate to fix the position between the two contour plates. Therefore, the device can adjust the length according to the length of the weld seam, and the fixing of the two contour plates is also very convenient.

[0018] (3) In the device, a front end sealing plate is installed at the front end of the inner contour plate, a rear end hollow plate is installed at the rear end of the outer contour plate, and a front end joint is installed on the front end sealing plate for connecting to the inert gas generator. The inert gas flows into the outer contour plate through the inner contour plate, which will not cause excessive emission of the inert gas. In addition, the hollow plate is arranged on the outer contour plate, which can slow down the emission of the inert gas, make the amount of inert gas in the contour plate fuller, and reduce the amount of inert gas used. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the installation of the front end sealing plate of the present invention;

[0021] Figure 3 This is a schematic diagram of the installation of the rear end hollow plate of the present invention. DETAILED DESCRIPTION

[0022] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments. The embodiments are implemented based on the technical solution of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0023] like Figure 1 , Figure 2 and Figure 3As shown, a silo weld welding auxiliary device includes an inner contour plate 1 and an outer contour plate 2; the inner contour plate 1 is mounted inside the outer contour plate 2, and the outer side surface of the inner contour plate 1 is also provided with a slide groove 3 extending along the plate body; and the inner side surface of the outer contour plate 2 is provided with a slide rod 4 corresponding to the position of the slide groove 3, and the slide rod 4 is clamped in the slide groove 3 so that the inner contour plate 1 and the outer contour plate 2 can slide relative to each other; the front end portion of the inner contour plate 2 is also equipped with a front end sealing plate 5, and the front end sealing plate 5 is provided with a front end joint 6 for installing and connecting an inert gas machine; and the rear end portion of the outer contour plate 2 is equipped with a rear end hollow plate 7 corresponding to the front end sealing plate 5.

[0024] Preferably, a circular groove 8 extending outward is provided inside the slide groove 3; and a limiting ball 9 used in conjunction with the circular groove 8 is installed at the end of the slide rod 4; the slide rod 4 extends into the slide groove 3, and the limiting ball 9 is placed in the circular groove 8.

[0025] Preferably, the inner contour plate 1 and the outer contour plate 2 are configured as arc-shaped plate structures or L-shaped plate structures.

[0026] Preferably, the outer side surface of the inner contour plate 1 is also provided with a slide rod 4 with a round ball 9; and the inner side surface of the outer contour plate 2 is provided with a slide groove 3 with a round groove 8 inside for use with the outer contour plate 2.

[0027] Preferably, the outer side surface of the inner contour plate 1 is also embedded with a long iron sheet 10 arranged parallel to the plate body; and the outer side surface of the outer contour plate 2 is also provided with a mounting groove 11 corresponding to the position of the iron sheet; a detachable magnet 12 is arranged in the mounting groove 11.

[0028] The present invention also provides a welding method for a silo weld auxiliary device, comprising the following steps:

[0029] 1) Adjust the position of the fixed silo plate according to the requirements of the silo, form a weld position between the two silo plates, clean the weld, and place the two ends of the inner and outer contour plates of the welding auxiliary device against the two silo plates respectively;

[0030] 2) According to the length of the weld between the two silo plates, adjust the relative positions of the inner contour plate and the outer contour plate, so that the front end sealing plate of the front end of the inner contour plate is clamped at the front end of the weld, and the rear end hollow plate of the rear end of the outer contour plate is clamped at the rear end of the weld; so that the welding auxiliary device as a whole wraps the inner end of the weld;

[0031] 3) After the positions of the inner and outer contour plates are determined, the relative positions of the two contour plates are fixed by the iron sheet on the outer side of the inner contour plate and the detachable iron block installed on the outer contour plate; and the clamping devices are respectively installed at the front end of the inner contour plate and the rear end of the outer contour plate to fix them on the silo steel plate, and the inner end of the weld is wrapped as a whole;

[0032] 4) An inert gas generator is installed externally on the front joint of the front sealing plate of the inner contour plate; the inert gas generator is started to continuously fill the contour formed by the inner contour plate and the outer contour plate with inert gas, and the inert gas enters from the front sealing plate at the front end and escapes from the rear hollow plate at the rear end; the inert gas continuously enters to drive out all the oxygen in the contour, so that the inside of the weld is wrapped by the continuously flowing inert gas;

[0033] 5) Use electric welding equipment to weld on the outside of the weld, and continuously introduce inert gas during welding. After the welding of the outside of the weld is completed, continue to introduce inert gas until the weld is completely cooled, and remove the welding auxiliary device.

[0034] The welding method of the device is to set a matching contour plate on the inner side of the weld, wrap the inner side of the weld as a whole through the contour plate, and continuously introduce inert gas into the inside of the contour plate to drive out the oxygen inside the weld, so that the inert gas wraps the inner side of the weld as a whole. In this way, when the welding equipment is welding on the outside of the weld, there is no oxygen inside the weld and no oxidation reaction occurs, thereby making the inner side of the weld flat and smooth, meeting the requirements of the silo for the weld.

[0035] The device wraps the weld seam with inner and outer layers of contour plates, and the inner and outer layers of contour plates are butt-jointed and installed with a slide rod with a limiting ball and a slide groove with a limiting groove. The inner and outer layers of contour plates are relatively movable, so the relative positions of the inner and outer layers of contour plates can be adjusted according to the length of the weld seam to adapt to weld seams of different lengths; and a long strip of iron sheet is arranged on the inner layer of contour plate, and a detachable magnet is arranged on the outer layer of contour plate. After the positions of the inner and outer layers of contour plates are determined, the magnet is placed in the installation groove, and the magnet attracts the iron sheet on the inner layer of contour plate to fix the position between the two layers of contour plates; therefore, the device can adjust the length according to the length of the weld seam, and the fixing of the two contour plates is also very convenient.

[0036] In the device, a front end sealing plate is installed at the front end of the inner contour plate, a rear end hollow plate is installed at the rear end of the outer contour plate, and a front end joint is installed on the front end sealing plate for connecting with an inert gas generator. The inert gas flows into the outer contour plate through the inner contour plate, which will not cause excessive emission of the inert gas. In addition, the hollow plate is arranged on the outer contour plate, which can slow down the emission of the inert gas, make the amount of inert gas in the contour plate fuller, and reduce the amount of inert gas used.

[0037] The above specific implementation is only a preferred embodiment of the present invention and is not intended to limit the implementation of the present invention and the scope of the claims. All equivalent changes and modifications made according to the contents described in the patent protection scope of the present invention should be included in the scope of the patent application of the present invention.

Claims

1. A welding method for a silo weld auxiliary device, characterized in that: The silo weld is an L-shaped weld, and the silo weld welding auxiliary device comprises an inner contour plate (1) and an outer contour plate (2); the inner contour plate (1) is sleeved inside the outer contour plate (2), and the outer side surface of the inner contour plate (1) is also provided with a slide groove (3) extending along the plate body; and the inner side surface of the outer contour plate (2) is provided with a slide rod (4) corresponding to the position of the slide groove (3), and the slide rod (4) is clamped in the slide groove (3) so that the inner contour plate (1) and the outer contour plate (2) can slide relative to each other; the front end portion of the inner contour plate (1) is also provided with a front end sealing plate (5), and the front end sealing plate (5) is provided with a front end joint (6) for installing and connecting an inert gas machine; and the rear end portion of the outer contour plate (2) is provided with a rear end hollow plate (7) corresponding to the front end sealing plate (5); The outer side surface of the inner contour plate (1) is also embedded with a long iron sheet (10) arranged parallel to the plate body; and the outer side surface of the outer contour plate (2) is also provided with a mounting groove (11) corresponding to the position of the iron sheet; a detachable magnet (12) is arranged in the mounting groove (11); The slide groove (3) is provided with a circular groove (8) extending outward; and the end of the slide rod (4) is provided with a limiting ball (9) used in conjunction with the circular groove (8); the slide rod (4) extends into the slide groove (3), and the limiting ball (9) is placed in the circular groove (8); The inner contour plate (1) and the outer contour plate (2) are configured as arc-shaped plate structures or L-shaped plate structures; The welding method comprises the following steps: 1) Adjust the position of the fixed silo welding plate according to the requirements of the silo, form the welding position between the two silo welding plates, clean the weld, and place the two ends of the inner contour plate and the outer contour plate of the welding auxiliary device against the two silo welding plates respectively; 2) According to the length of the weld between the two silo welding plates, adjust the relative positions of the inner contour plate and the outer contour plate so that the front end sealing plate of the front end of the inner contour plate is clamped at the front end of the weld, and the rear end hollow plate of the rear end of the outer contour plate is clamped at the rear end of the weld; so that the welding auxiliary device as a whole wraps the inner end of the weld; 3) After the positions of the inner and outer contour plates are determined, the relative positions of the two contour plates are fixed by the iron sheet on the outer side of the inner contour plate and the detachable magnet installed on the outer contour plate; and the clamping devices are respectively installed at the front end of the inner contour plate and the rear end of the outer contour plate to fix them on the silo welding plate, and the inner end of the weld is wrapped as a whole; 4) An inert gas generator is installed externally on the front joint of the front sealing plate of the inner contour plate; the inert gas generator is started to continuously fill the contour formed by the inner contour plate and the outer contour plate with inert gas, and the inert gas enters from the front sealing plate at the front end and escapes from the rear hollow plate at the rear end; the inert gas continuously enters to drive out all the oxygen in the contour, so that the inside of the weld is wrapped by the continuously flowing inert gas; 5) Use electric welding equipment to weld on the outside of the weld, and continuously introduce inert gas during welding. After the welding of the outside of the weld is completed, continue to introduce inert gas until the weld is completely cooled, and remove the welding auxiliary device.

2. The welding method of a silo weld auxiliary device according to claim 1, characterized in that: The outer side surface of the inner contour plate (1) is also provided with a slide rod (4) with a round ball (9); and the inner side surface of the outer contour plate (2) is provided with a slide groove (3) with a round groove (8) inside for use with the slide rod.

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