KR20120100869A - Automatic apparatus for heating of the back or the other side surface - Google Patents

Abstract

PURPOSE: An automatic backside heating apparatus is provided to enable easy, accurate preheating before and after welding by optimizing a multi-joint mechanism for backside work. CONSTITUTION: An automatic backside heating apparatus a multi-joint mechanism which regulates the position of a gas torch(19) to be used for preheating or welding of a steel structure. The multi-joint mechanism is provided in a carriage(10) and comprises a main post(11) comprising a vertical post(11a) connected to a carriage body(1) and a horizontal post(11b) extended from the vertical post over the carriage body, a sub post(15) connected to the leading end of the horizontal post of the main post, and a torch post connected to the leading end of the sub post. Clampers(12,14,16) are installed in respective joints and fitted with clamping bolts(13) for tightening and loosening.

Description

Automatic apparatus for heating of the back or the other side surface}

The present invention is a bogie type carriage used for preheating or welding various steel structures with a multi-joint mechanism for adjusting the position of the gas torch, improving the structure of the multi-joint mechanism for backside work. By optimizing the design, the preheating work before and after the welding work is very easy and easy, not only on the surface where the carriage is mounted and moving, but also on the back surface where the carriage is mounted and the back surface present at an angle of 270 to 360 degrees. The present invention relates to a heating automation device that can be accurately performed.

In general, ships or other offshore plants weld various metal sheets or shaped steel materials on the basis of the ship's thick plate, and primarily fabricate the unit structures that form part of the overall structure, and then assemble these unit structures. In this way, the unit structures are welded together to complete a large structure.

In particular, when the ship is built, the vertical bulkhead is welded to the main plate, which is a metal floor plate, and the like, while welding various shaped steel materials to the vertical bulkhead to produce a ship block, which is a unit structure. Carriage for welding, which can automatically perform a welding operation while moving the welding torch along the edge line in the vertical or horizontal direction, is used.

The welding carriage as described above is a device for automatically performing edge welding or butt welding while moving along the welding line by using a moving rail or a driving wheel, and since the torch clamp is mounted on the carriage, the welding torch Pellets welding, etc. can be performed along the edge lines of the wall in a fixed state, as well as the welding work of the rear part or the corner part which is difficult to work by the manpower can also be performed relatively precisely.

In order to perform the welding operation using the carriage as described above, preheating work for heating the corresponding welding part before and after the welding work should be accompanied, and this preheating work may be performed directly on the welding surface, Depending on the type, characteristics or necessity of manufacturing the structure, such preheating is often performed on the back surface of the weld surface.

As described above, the direct preheating work on the welding surface can be performed automatically using the existing carriage, and even when the preheating work is performed on the back side of the welding surface, the carriage can be mounted on the back side. In this case, it is not a big problem, but in the situation where the carriage cannot be mounted on the back side, there is a problem that it is inevitable to rely on preheating work by manpower.

In particular, the condition that the carriage can not be mounted means that it is a floor bottom space or a narrow passageway space which is very difficult to perform preheating work by manpower, so as a worker enters the space and performs a difficult preheating work, The overall time and cost of the preheating work is increased, and it is difficult to perform an accurate and uniform level of the preheating work, thereby causing additional problems such as defects in the welding area.

In order to solve this problem, a multi-joint mechanism that can be set from the surface on which the carriage is mounted to the rear side toward a position requiring a preheating gasast is required. The position of the torch can only be adjusted only on the surface on which it is placed, and there is a problem in that the position of the torch cannot be set on the back side other than the surface.

Republic of Korea Patent Publication No. 10-2011-29781 (published: March 23, 2011) Republic of Korea Patent Publication No. 10-2011-80835 (published date: July 13, 2011)

The present invention has been made to solve the conventional problems as described above, the automatic heating device for back heating according to the present invention, the pre-heating or welding of various steel structures with a multi-joint mechanism for adjusting the position of the gas torch is provided. In the carriage-type carriage used for the work, the structure of the articulated mechanism is improved and optimized for backside work, so that not only the surface on which the carriage is mounted, but also the surface on which the carriage is mounted, exists at an angle of 270 to 360 degrees. Up to the rear side, the technical task is to make the preheating work performed before and after the welding work very easily and accurately, thereby greatly contributing to the improvement of the speed and efficiency of the welding work.

In addition, while installing an injector inside the torch body of the gas torch, while the gas component is sucked in the process of high-pressure oxygen injection through the injector to mix with oxygen, the pipe for the injector to the outside of the torch body Even if not installed separately, oxygen and gas are mixed inside the torch body to generate the fuel required for the flame for preheating operation. Thus, the gas torch is mounted on the clamp of the articulated joint, and the position of the gas torch in the clamp is Another technical challenge is to make the adjustment work easier to perform.

The present invention as a means for solving the above technical problem, the articulated mechanism in the trolley carriage is provided with a multi-joint mechanism for adjusting the position of the gas to be used for preheating or welding the steel structure Is based on a vertical post connected to the carriage main body and a main post installed in a "Γ" shape by a horizontal post extending from the vertical post to a position beyond the carriage main body, and a horizontal post end of the main post. And a torch post connected to and installed at a distal end portion of the sub post.

In more detail, a connecting arm protrudes from one side of the lower end of the vertical post of the main post, and the connecting arm is inserted through the first clamp fixed to the carriage body, and is formed at the front end of the main post. Two clamps are installed, the second clamp is inserted into the connecting arm formed protruding on one side of the rear end of the sub-post through, the third clamp is installed on the front end of the sub-post, the gas clamp to the third clamp One end of the torch post is mounted is inserted through the side direction, each of the clamp is formed with a circular hole through which the connecting arm and the torch post is inserted, the incision is formed on one side of the circular hole On the other hand, it is characterized in that the clamping bolt is fastened or installed to tighten or release the gap between the incision to perform the clamping operation .

In addition, the present invention further installs a torch clamp at the other end of the torch post so that the torch body of the gas torch penetrates and is installed in the torch clamp, and the torch body is likewise in the torch clamp. A circular hole to be inserted is formed, and a cutout is formed at one side of the circular hole, and a clamping bolt for fastening or releasing the gap of the cutout is adjusted to install the clamping bolt. The gas torch is connected to a torch body in the form of a pipe, a pair of fuel pipes connected to the rear end of the torch body, a mixed pipe of fuel connected to the distal end of the torch body, and a distal end of the mixed pipe. The torch head is installed, and each fuel pipe is provided with an adjustment knob, and the torch body An oxygen injection pipe and a gas injection pipe communicating with the fuel pipe are installed in the interior thereof, and an injector is installed inside the connection portion of the torch body and the mixing pipe, and an oxygen injection passage communicating with the oxygen injection pipe is formed inside the injector. On the other hand, it is characterized in that the outlet of the gas suction passage communicating with the gas injection pipe is formed to be located on the tip side of the oxygen injection passage.

According to the automation device of the present invention as described above, by improving the articulated mechanism of the carriage-type carriage that has been previously used for welding to optimize the rear preheating operation, as well as the surface on which the carriage is mounted, the surface on which the carriage is mounted And up to the back surface present at an angle of 270 to 360 degrees, it provides an effect that can be performed very easily and accurately preheating performed before and after the welding operation.

As a result, the preheating work on the back surface where the carriage cannot be mounted, such as the bottom floor space or the narrow aisle space, can be performed automatically, thereby greatly reducing the overall time and cost of the preheating work. As well as being effective, it is possible to achieve a precise and uniform level of preheating work on the back side, it is possible to obtain a weld having excellent quality and bonding strength.

In addition, even if the injector pipe is not installed outside the torch body, the injector inside the torch body can mix oxygen and gas to generate fuel for the flame for preheating operation. It is possible to carry out the mounting work and to adjust the position of the gas torch in the clamp more easily.

1 is an external perspective view of the automation apparatus for rear heating according to the present invention.
2 is a plan view of Fig.
3 is a side view of FIG. 1;
Figure 4 is an exploded perspective view of the articulated mechanism that forms the main part of the present invention.
5 (a) to (c) is a state of use of the automation device for back heating according to the present invention.
Fig. 6 is a side cross-sectional view showing the structure of a gas torch used in the present invention.

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

The automation apparatus for back heating according to the present invention is a bogie-type carriage 10 used for preheating or welding a steel structure, as shown in FIGS. 1 to 3, respectively. The carriage 10 is provided with the articulation mechanism 20 for adjusting the position thereof, but the structure of the articulation mechanism 20 is improved for rear surface preheating.

That is, the moving wheel 5 is installed at the lower part of the carriage body 1, the magnet mechanism and the power transmission mechanism not shown are built in the carriage body 1, and the upper surface of the carriage body 1 is The drive motor 2 is installed in association with the power transmission mechanism to operate the movable wheel 5, while the control box 3 equipped with the operation mechanism 3a is installed for the operation and control of the device. Using 10 as the means of movement of the gas stove 19 means the same.

The magnet mechanism provides a magnetic attraction force to prevent the carriage body (1) is attached to the surface of the steel structure during the preheating or welding operation of the steel structure, and permanent magnets or electromagnets can be used, in the case of rail type carriage The magnet mechanism is not built in, and the carriage body 1 is directly mounted on the rail. The power transmission mechanism is mainly applied using a chain and a sprocket.

In addition, a welding spark scattered during the welding operation is attached to the surface of the carriage body 1 on the front surface of the carriage body 1, or the heat of flame generated during welding or preheating operation is transmitted to the carriage body 1. A blocking plate 6 is provided to prevent it, and a length adjusting bar 8 is connected to both sides of the carriage body 1 so that the position of the guide roller 7 can be adjusted.

The length adjustment bar 8 has a long hole-shaped adjustment hole (8a) is formed along the length direction, while the adjustment hole (8a) is fastened to the carriage body (1) and the length adjustment bar (8) to the carriage body ( 1) A pair of position fixing knobs 8b for close contact with each other are installed, and the guide rollers 7 are in close contact with the conveying rails to guide the movement of the carriage 10. The length adjusting bar is provided by the roller bracket 7a. It is connected to the tip of (8), and a pushing handle 4 is provided on the rear end of the carriage body 1.

As described above, the configuration of the carriage 10 itself described on the basis of FIGS. 1 to 3 is just one representative example applicable to the present invention, and a very wide variety of carriages for automatic welding of various steel structures. As it is commercially available, the articulated mechanism 20 constituting the main part of the present invention for each of these carriages can be used as an automation device for rear heating.

As shown in FIGS. 1 to 4, each of the articulated devices 20 forming the main part of the present invention has a vertical post 11a connected to the carriage body 1 and a carriage from the vertical post 11a. The main post 11 installed in a "Γ" shape by the horizontal post 11b extending to the position beyond the main body 1 is used as the base, and the horizontal post 11b of the main post 11 is used as a base. ) Further comprises a subpost 15 connected to the distal end and a torch post 17 connected to the distal end of the subpost 15.

In addition, a connecting arm 11c protrudes from one side of the lower surface of the vertical post 11a of the main post 11, and the connecting arm 11c is fixed to the carriage body 1 by the main bracket 9. It is inserted through the first clamp 12, the second clamp 14 is installed at the front end of the horizontal post (11b) of the main post 11, the second clamp 14, the sub-post (15) The connecting arm 15a protruding from one side of the rear end of the c) is inserted into and installed through.

Although the main post 11 and the sub post 15 are shown as a whole forming a Π-shaped joint frame in the drawing, this shows the structure of the articulated joint 20 applied to the present invention more easily. In order to illustrate only one representative fixed state, the shape of the articulation mechanism 20 itself formed by the main post 11 and the sub post 15 may be variously changed.

In other words, the angular movement of the main post 11 with respect to the carriage body 1 is possible based on the first clamp 12, and of course the main post 11 based on the second clamp 14. Since the angular movement of the subpost 15 with respect to) is possible, the overall shape of the articulated mechanism 20 provided by the main post 11 and the subpost 15 varies according to the position of the rear surface where preheating is required. Will change.

On the other hand, a third clamp 16 is installed at the tip of the sub post 15, one end of the torch post 17 penetrates laterally in the third clamp 16, and is installed. A torch clamp 18 is installed at the other end of the 17, and the torch body 19a of the gas torch 19 is inserted through the torch clamp 18.

As described above, each of the clamps 12, 14 and 16 which articulates the main post 11, the sub post 15, the torch post 17 and the gas torch 19 from the carriage body 1 as described above. A circular hole into which the connecting arm 11c, 15a, the torch post 17, and the torch body 19a of the gas torch 19 are inserted is formed in 18, and an incision is formed at one side of the circular hole. On the other hand, the clamping bolt 13 is fastened and installed to tighten or release the gap between the incisions to perform the clamping operation.

Therefore, the rotation of the connecting arms 11c and 15a and the torch post 17 inserted into the corresponding clamps 12, 14 and 16 by the clamping bolt 13, that is, the main post 11 and the sub The angular movement and position fixing of the post 15 and the axial rotation and position fixing of the torch post 17 on which the gas torch 19 is mounted are possible, and the torch clamp 18 is the protruding length of the gas torch 19. It is to perform a function to adjust the, for the convenience of this operation each clamping bolt 13 is provided with a handle (13a).

5A to 5C illustrate a state in which the steel structure 21 is preheated by using the automation apparatus for heating the rear surface of the present invention having the configuration as described above. In FIG. 6, the carriage 10 is mounted and a preheating state of the surface moving along the guide rail 22 is illustrated. In FIGS. 5B and 5C, the surface on which the carriage 10 is mounted is 270 degrees; Each of the preheating states for the back surface present at a 360 degree angle is shown.

As described above, not only the surface on which the carriage 10 is mounted and moved, but also the preheating operation on the back surface present at an angle of 270 to 360 degrees with the surface on which the carriage 10 is mounted is possible. This is because the main post 11 having a "Γ" shape extending from the connected horizontal post 11b to the outside of the carriage body 1 is applied as a base of the articulation mechanism 20.

In other words, the length of the vertical post 11a and the horizontal post 11b itself is about 1.5 times greater than the length from the point where the vertical post 11a is connected to the carriage body 1 to the tip side of the guide roller 7. By lengthening about 2.5 times, the front angular movement of the main post 11 based on the first clamp 12 was not disturbed by the carriage body 1 or the guide roller 7 based on FIG. 3. Will be.

In addition, since the gas torch 19 is suspended from the front end of the horizontal post 11b of the main post 11 by the sub post 15, the sub post 15 and the gas torch 19 also have a carriage body ( 1) and the outer side of the guide roller 7, so that the gas torch 19 can reach the rear side beyond the surface on which the carriage 10 is placed, as shown in (b) and (c) of FIG. It can be.

In addition, the angular movement of the subpost 15 based on the second clamp 14, the rotation of the torch post 17 based on the third clamp 16, that is, the angular movement of the gas torch 19, By adjusting the protruding length of the gas torch 19 based on the torch clamp 18, the position of the torch head 19c of the gas torch 19 reached on the back side can be accurately set to the required preheating position. It can be.

As described above, not only the surface on which the carriage 10 is mounted, but also the back side, which is spaced apart from the surface by 270 degrees to 360 degrees, can be set to a position requiring a position of the gas torch 19, Preheating work on the back side where the carriage 10 cannot be mounted, such as bottom space or narrow passageway space, can also be performed in an automatic manner, thereby greatly reducing the overall time and cost required for preheating work. Of course, it is possible to obtain an accurate and uniform level of preheating work on the back surface, it is possible to obtain a welded part having excellent quality and bonding strength.

As described above, under the condition that the automation apparatus for rear heating of the present invention is used for preheating of the steel structure 21, the gas torch 19 mounted on the torch clamp 18 in the drawing is likewise a representative example. Indicated.

The gas torch 19 is provided with a torch head 19c for spraying a preheating flame on the tip side of the pipe-shaped torch body 19a, and a combustion gas and oxygen are injected into the rear end of the torch body 19a, respectively. Two fuel pipes (19b) are connected to each other, and each fuel pipe (19b) is provided with a control knob (19d) for adjusting the injection amount of combustion gas and oxygen, which is a general preheating torch and The same configuration is obtained.

As a more preferred embodiment of the gas torch 19, as shown in Figure 6, the torch body (19a) inside the oxygen injection passage 23a by the oxygen injection in communication with the upper fuel pipe (19b) in the drawing A gas injection pipe 24 communicating with the lower fuel pipe 19b in the drawing is provided by the inlet 23 and the gas injection passage 24a, respectively, between the torch body 19a and the torch head 19c. In the mixing pipe 26 for generating fuel by mixing oxygen and gas is connected.

In addition, an injector 25 is inserted inside the connection portion of the torch body 19a and the mixing pipe 26, and an oxygen injection passage 25a communicating with the oxygen injection pipe 23 is provided inside the injector 25. While being formed therethrough, the outlet of the gas suction passage 25b communicating with the gas injection tube 24 is formed at the tip side of the oxygen injection passage 25a, and the tip portion of the mixing pipe 26 is extended ( 26a), and the torch head 19c is screwed to the front end of the mixing pipe 26 by a nut head fastening portion 27 with a sealing ring 27a interposed therebetween.

When the gas torch 19 having the structure shown in FIG. 6 is used as described above, in the process of injecting high pressure oxygen into the oxygen injection passage 25a of the injector 25, the gas is along the gas suction passage 25b. While allowing the components to be sucked, it is possible to uniformly mix with oxygen in the mixing pipe 26, which is necessary for the composition of the flame for preheating work even if the injector pipe is not separately installed outside the torch body 19a. It can produce good fuel (oxygen + gas).

In addition, the torch clamp of the articulation mechanism 20 is formed by forming the body portion of the gas torch 19 from the torch body 19a of the gas torch 19 to the mixing pipe 26. The operation of mounting the gas torch 19 to 18 can be performed very easily, and the operation of adjusting the position of the gas torch 19 along the torch clamp 18 can be performed more easily. Will be.

However, by mounting a welding torch on the torch clamp 18 of the automatic heating device for back heating according to the present invention, the automatic heating device for back heating of the present invention can be applied to a welding operation as well. As will be apparent to those skilled in the art having ordinary skill in the art to which the present invention pertains, it is to be understood that the present invention is naturally included within the scope of the technical idea to be pursued.

1: carriage body 2: driving motor 3: control box
3a: operating mechanism 4: handle 5: moving wheel
6: blocking plate 7: guide roller 7a: roller bracket
8: Length adjustment bar 8a: Adjustment hole 8b: Position fixing knob
9: Main Bracket 10: Carriage 11: Main Post
11a: vertical post 11b: horizontal post 11c, 15a: connecting arm
12. First clamp 13: Clamping bolt 13a: Handle
14: second clamp 15: sub-post 16: third clamp
17: torch post 18: torch clamp 19: gas torch
19a: torch body 19b: fuel pipe 19c: torch head
19d: Adjustment knob 20: Articulated joint 21: Steel structure
22: guide rail 23: oxygen injection pipe 23a: oxygen injection passage
24 gas injection pipe 24a gas injection passage 25 injector
25a: oxygen injection passage 25b: gas suction passage 26: mixed pipe
26a: expansion part 27: head fastening part 27a: sealing ring

Claims (3)

In the automated device provided with the trolley-type carriage 10, a multi-joint mechanism 20 for adjusting the position of the gas torch 19 to be used for preheating or welding a steel structure,
The articulated joint (20) includes a vertical post (11a) connected to the carriage body (1) and a horizontal post (11b) extending from the vertical post (11a) to a position beyond the carriage body (1). A subpost 15 which is connected to the front end of the horizontal post 11b of the main post 11 based on the main post 11 installed in a “Γ” shape, and the front end of the subpost 15. It is made by including a torch post (17) additionally connected to,
A connecting arm 11c protrudes from one side of the lower end of the vertical post 11a of the main post 11, and the connecting arm 11c penetrates through the first clamp 12 fixed to the carriage body 1. Inserts are installed,
The second clamp 14 is installed at the front end of the horizontal post 11b of the main post 11, and the connecting arm 15a protruding from one side of the rear end of the sub post 15 is provided at the second clamp 14. Inserted and installed through
A third clamp 16 is installed at the front end of the sub post 15, and one end of the torch post 17 on which the gas torch 19 is mounted is inserted into the third clamp 16 in a lateral direction. Installed,
Each of the clamps 12, 14 and 16 is provided with a circular hole through which the connecting arms 11c and 15a and the torch post 17 are inserted, and a cutout is formed at one side of the circular hole. On the other hand, the clamping bolt 13 for tightening or releasing the gap of the incision to perform the clamping operation 13, characterized in that the fastening installation for fastening. The torch clamp 18 is installed at the other end of the torch post 17, and the torch body 19a of the gas torch 19 is inserted through the torch clamp 18.
The torch clamp 18 is formed with a circular hole into which the torch body 19a is inserted through, and a cutout is formed at one side of the circular hole, while tightening or releasing the gap of the torch body 19. Automated equipment for back heating, characterized in that the clamping bolt 13 is installed to fasten the adjustment of the protrusion length of the. The gas torch 19 is connected to a pipe-shaped torch body 19a and a rear end of the torch body 19a to provide an injection path for oxygen and gas. A pair of fuel pipes 19b and a mixing pipe 26 connected to the distal end of the torch body 19a to provide a mixed passage of oxygen and gas, and connected to the distal end of the mixing pipe 26; It consists of a torch head (19c) for injecting a flame for heating,
Each of the fuel pipes 19b is provided with a control knob 19d for adjusting an injection amount of oxygen and gas, and an oxygen injection pipe 23 communicating with the fuel pipe 19b in the torch body 19a. Gas injection pipe 24 is installed,
An injector 25 is installed inside the connection portion of the torch body 19a and the mixing pipe 26, and an oxygen injection passage 25a is formed in the injector 25 to communicate with the oxygen injection pipe 23. On the other hand, the automation device for back heating, characterized in that the outlet of the gas suction passage (25b) in communication with the gas injection pipe (24) is formed so as to be located on the front end side of the oxygen injection passage (25a).

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