KR102432623B1 - Holder for torch - Google Patents

Abstract

The present invention relates to a torch holder for performing welding while rotating by mounting a torch to maintain a certain distance with respect to a welding target, wherein one side 11 is bent into a "L" shape and the other side 12 is elastic The main body 10, which is horizontal with The guide is configured to include a rotation guide member 14, so that in a state in which the rotation guide member of the holder for the torch is placed on the pipe, one side of the holder is inserted into the groove of the rotation guide member and the torch is mounted on the holder. Since the pipe and the plate member are welded while rotating the This can reduce the manufacturing cost, and since the holder can be installed and disassembled quickly, the efficiency of the welding operation is improved.

Description

Holder for torch {HOLDER FOR TORCH}

The present invention relates to a holder for a torch, and in particular, in order to weld a pipe to a plate-like member, the torch can be rotated in a certain radius by a rotation guide rotatably provided at the center of the welding part, and the torch is maintained at a constant angle. It relates to a holder for a torch having an improved structure.

In general, in a boiler or heat exchanger, a pipe assembly with ends welded between plate-shaped members is installed inside a body made of a large-diameter cylindrical or rectangular cylindrical body for heat exchange between a fluid inside a body and a fluid flowing through a pipe. In this pipe assembly, a plurality of pipes are welded with the ends spaced apart from each other at regular intervals between two plate-shaped members.

In the case of manually welding the pipe to the plate member at a right angle as described above, since a highly skilled manpower is required, there is a problem in that the cost of labor is increased, and the work efficiency is low during manual work.

On the other hand, a means capable of rotating the torch in a constant radius toward the junction between the pipe and the plate-like member has been required.

For this purpose, conventionally, robots have been used, but there is a problem that it is very burdensome for small and medium-sized enterprises to purchase expensive robot equipment.

On the other hand, Korean Patent Application Laid-Open No. 10-2014-0028466 (published on March 10, 2014) includes a body unit, a welding unit, a turning roller unit and a control unit, and the body unit includes a support and a crossbar. And, a vertical bar, a vertical length adjusting member, a horizontal length adjusting member, and a pipe pipe and a flange welding apparatus having a welding land holder support is disclosed.

As another example, Korean Patent Registration No. 10-1540317 (registration date July 23, 2015) states that the center of the circular hole and the counterpart in welding a thin plate member having a circular hole and a counterpart to the circular hole In the welding jig for welding in, a central shaft temporarily coupled to a counterpart, a rotating body rotatably provided on the central shaft, a torch holder for fixing and supporting a welding torch to the rotating body, and a torch holder on the rotating body Disclosed is a welding jig that is provided to be movable up and down on a fixing bracket for connecting and fixing and a center shaft, and including a centering unit for matching a center of a circular hole with a counterpart.

However, the welding device or jig of the prior art has a complicated structure, and it is difficult to weld a plurality of pipes in a position close to the circular plate member, and it takes a lot of work time according to installation and release. There was a problem of lowering the working efficiency.

In addition, in Korea Utility Model Publication No. 20-2013-0006753 (published on November 25, 2013), there is a fixing part fixed to the bottom of the object of overhead welding, and the shaft is rotated by being connected to the lower side of the fixing part. An overhead configured including a rotating part, a torch holder connected to the rotating part and one end thereof, and the other end fixing the welding torch, and a rotating handle configured to rotate the torch holder on one side of the torch holder. A welding torch support device for welding is disclosed.

However, the above welding torch support device cannot be used when welding a plurality of pipes to a circular plate-shaped member such as a boiler, and there is a problem that requires a high degree of skill in order to keep the angle of the torch constant.

Korean Patent Publication No. 10-2014-0028466 (published on March 10, 2014) Korean Patent Registration No. 10-1540317 (Registration Date July 23, 2015) Korean Utility Model Publication No. 20-2013-0006753 (published on November 25, 2013)

An object of the present invention is to solve the above problems of the prior art, a holder body provided with a holding means for holding the torch in an adjustable position, and a pipe to be welded to a plate-shaped member so as to insert one end bent at a right angle from the body. It is to provide a torch holder of an improved structure to stably weld between the pipe and the plate member while rotating the holder around the rotation guide member inserted into the pipe to be welded, including the rotation guide member inserted and disposed at the end of the .

In order to achieve the above object, the torch holder according to the present invention is a torch holder configured to perform welding while rotating by mounting a torch to maintain a certain distance with respect to the welding object,

One side is bent into a "L" shape and the other side has elasticity and is a horizontal body,

a holding part to be fitted on the other side of the main body and for holding a torch; and

A part is inserted into the end of the pipe to guide the rotation of the holder together with the torch is configured to include a rotation guide member.

The main body is configured such that one side is bent in a "L" shape and the other side has elasticity and is formed horizontally, and a groove is formed in the rotation guide member so that the end of one side of the body can be inserted and rotated.

Waveforms are formed on the other side of the main body, and the holding part is formed in a tubular shape so that the outer surface of the main body is formed as a corrugated part and the other side of the main body is inserted, so that the holding part moves step by step according to the corrugation with respect to the other side of the main body. and two elastic supports for mounting the torch are formed on the inner surface.

The inner portion of the rotation guide member is smaller than the inner diameter of the pipe and is inserted into the pipe, and the outer end has a relatively larger diameter than the inner diameter of the pipe. The end is configured to hook onto the end of the pipe so that it is no longer inserted into the pipe and remains rotatably at the end of the pipe.

According to the present invention, by welding the pipe and the plate-shaped member while rotating the torch mounted on the holder by inserting one side of the holder into the groove of the rotation guide member in a state in which the rotation guide member of the torch holder is disposed on the pipe, even if unskilled Since the bead can weld the ends of a plurality of pipes to the plate-like member even if it is a slab, the welding quality is improved, and the holder for the torch can be manufactured with a simplified structure, thereby reducing the manufacturing cost, and It has the effect of improving the efficiency of welding work because it can be installed and disassembled quickly.

1 is a perspective view of an article in which ends of a plurality of pipes disposed between the plate-shaped members on both sides are welded to the plate-shaped member; Figure 2 is a schematic exploded perspective view of the holder for a torch of the present invention. Figure 3 is a perspective view of the holder for the torch in the assembled state in Figure 2. Figure 4 is the rotation guide member of Figure 2 to weld the end of the pipe to the plate-like member of Figure 1 is a perspective view of a state inserted into the end of the pipe. FIG. 5 is a perspective view showing that the bent end of the holder body is inserted into the groove formed in the center of the rotation guide member in FIG. 4 and a torch is mounted on the holding means of the holder body and welded. 6 is a cross-sectional view showing the welding of the pipe and the plate-like member in the state of FIG. 5. FIG. 7 is a front view of FIG. 5 showing that welding is performed constantly around the pipe while rotating the rotation guide member in FIG.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings showing embodiments of the present invention.

In Fig. 1, there is shown a pipe assembly 1 in which ends of a plurality of pipes 3 are welded between two plate-shaped members 2 and 2', and this pipe assembly is installed inside the body of a heat exchanger or boiler. installed and used.

In this way, in order to weld the plate-like members 2 and 2' with a constant bead along the circular contour of the end of the pipe 3, a highly skilled function is required. measures were requested.

In response to this expectation, according to the present invention, an improved holder for a torch is provided so that welding can be performed while rotating the torch at a constant radius from the center of the pipe.

As shown in FIGS. 2 to 4, the torch holder according to the present invention has one side 11 bent in a "L" shape and the other side 12 has elasticity and a horizontal main body 10, of the main body. A holding part 13 for holding the torch and being fitted to the other side 12, a groove 141 is formed so that the end of the one side 11 is inserted, and a rotation guide member 14 inserted into the end of the pipe. includes The other side part 12 may be formed as a body by being joined to the one side part 11 in the form of an elastic, elongated plate.

The other side part 12 of the main body 10 has a corrugated shape, and the holding part 13 is formed in a tubular shape so that the outer surface is formed as a corrugated part 131 and the other side part 12 of the main body is inserted. , two elastic support parts 132 are formed on the inner surface. The two elastic support parts 132 are formed in an arc shape so that the torch is elastically detachable as will be described later. As a result, the holding part 13 can move stepwise along the corrugation with respect to the other side of the body, so that it is possible to adjust the position of the torch held by the supporting parts 132 .

In addition, the one side portion 11 of the holder body 10 has a cross section such as a square, and the cross section of the groove 141 of the rotation guide member 14 can also be formed in the same square shape as the one side. , in this case, the rotation guide member 14 is also rotated when the holder is rotated.

However, one side 11 of the holder body 10 may have a circular cross-section, and the groove 141 of the rotation guide member 14 may also have a circular cross-section. In this case, the rotation guide The member 14 is held with its inner side disposed in the end of the pipe 3 , and the holder body 10 can be rotated about one side 11 .

Accordingly, with the torch and a part of one side of the holder body inserted into the rotation guide member, the outer peripheral surface of the pipe is guided by the rotation guide and rotated while welding the outer peripheral surface of the pipe and the plate-shaped member with the torch.

In addition, with the structure of the holding part 13 as described above, when the holding part 13 is inserted into the other side part 12 in which the corrugation of the main body 10 is formed, it is caught in each corrugated part and elastically of the pipe. Since the distance from the center can be adjusted, the position of the torch can be adjusted by adjusting the position of the holding part 13 according to the radius to be welded by the torch, as will be described later.

The rotation guide member 14 has an inner portion 142 smaller than the inner diameter of the pipe 3 and is inserted into the pipe 3 , and the outer end 143 has a relatively larger diameter than the inner diameter of the pipe 3 . is expanded. In addition, a handle 144 is protruded radially outward from the outer peripheral surface of the outer end 143 of the rotation guide member 14 .

Accordingly, when inserting the inner portion of the rotation guide member into the end of the pipe 3, the outer end 143 is caught on the end of the pipe 3, so that the rotation guide member is no longer inserted into the pipe, the end of the pipe can be maintained rotatably in

The use of the torch holder according to the present invention for welding a pipe will be described with reference to FIGS. 4 to 7 .

In the pipe assembly (1), two plate-shaped members (2, 2') and the ends of the pipe in a state in which the ends of the plurality of pipes (3) are arranged in holes formed in the plate-shaped members arranged at a predetermined interval therebetween and plate-like members are welded.

To this end, first, the inner portion 142 of the rotation guide member 14 is inserted into the end of the pipe 3 , and the outer end 143 of the expanded diameter is caught on the end of the pipe and is not inserted any more.

In this state, the holding part 13 is inserted into the other side of the holder body 10, the torch 100 is mounted on the elastic support part 132 of the holding part, and then one side of the holder body 10 ( 11) is inserted into the groove 141 of the rotation guide member 14. At this time, in consideration of the distance between the torch 100 and the welding part, the insertion depth of the holding part 13 on which the torch 100 is mounted in the other side part 12 of the holder body 10 is adjusted. In this way, the plate-shaped members 2, 2' and the pipe 3 are welded with the torch 100, wherein the torch 100 is one of the holder inserted into the groove 141 of the rotation guide member 14. By rotating while maintaining a constant distance around the side portion 11, the welded portion is formed uniformly.

As described above, when the holder for the torch according to the present invention is used, even an unskilled person can constantly weld the ends of a plurality of pipes to the plate-shaped member with beads, thereby improving welding quality. In addition, since it can be manufactured with a simplified structure, manufacturing costs can be reduced, and installation and disassembly can be performed quickly, so that the welding operation can be performed efficiently.

The present invention can be used to weld with a constant bead to a plate-like member along the circumference of a pipe.

1: pipe assembly 2,2': plate member
3: pipe 10: body
11: one side 12: the other side
13: holding part 14: rotation guide member
131: wave part 132: support part
141 : Home

Claims (4)

The main body 10 and the holding part 13 for holding the torch and being fitted to the other side 12 of the main body to perform welding while rotating by mounting a torch to maintain a certain distance with respect to the welding target; and a rotation guide member 14 having a part inserted into the end of the pipe to guide the rotation of the holder together with the torch, and the end of the one side 11 of the body 10 is inserted into the pipe so that it can be rotated. In the holder for the torch in which the groove 141 is formed in the rotation guide member 14,
In the main body 10, one side 11 is bent in a "L" shape, the other side 12 has elasticity and is horizontal, the other side 12 has a wave shape, and the holding part 13 is formed in a tubular shape so that the outer surface is formed of a corrugated portion 131 and the other side portion 12 of the main body is inserted, so that the holding portion 13 can move step by step according to the corrugated portion with respect to the other side of the main body, Two elastic support parts 132 for mounting the torch are formed on the inner side,
The rotation guide member 14 has an inner portion 142 inserted into the pipe 3 because it is smaller than the inner diameter of the pipe 3, and an outer end 143 having a relatively larger diameter than the inner diameter of the pipe 3 A torch holder, characterized in that the outer end (143) is hooked on the end of the pipe (3) so that it is no longer inserted into the pipe and is rotatably maintained at the end of the pipe.
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