KR100934960B1 - Automatic TIG-welding device of portable type, for construction jointing steel pipes - Google Patents

Abstract

 Portable type TIG automatic welding device for steel pipe connection construction according to the present invention includes a traveling rail assembly including a traveling rail formed in a ring type and mounted around the steel pipe; A carriage mounted to the rail assembly and rotating along a steel pipe circumference; The welding torch and the welding wire are rotatable in the opposite direction to enable the bidirectional welding of the steel pipe, and includes a welder supported by the carriage to weld the steel pipe joint, thereby minimizing the radius of rotation of the entire equipment, It can be easily applied to the construction site, it is possible to perform a variety of welding operations at the same time has the effect of improving the weldability and welding convenience.

Travel Rail, Carriage, Welder, Welding Torch, Weaving, Feeding

Description

Portable TIG-welding device of portable type, for construction jointing steel pipes}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to steel pipe connection construction equipment, and more particularly, to a portable type TIG automatic welding device for steel pipe connection construction which enables easy welding construction on the outer surface of a steel pipe even in a narrow pipe construction site.

Applicant has developed the technology to maximize the durability of piping system by securing the workability, economic efficiency, safety and quality of welded joints by automatically performing piping and welding when constructing large steel pipes in all field conditions such as general earth and sand section. It continues.

Applicant, based on the achievements of such research and development, "Applicant method of steel pipe" (Patent No. 10-0440555), "Forming device of steel pipe" (Patent No. 10-0440185), "Forming device of steel pipe" (Patent No. 10-0598551) was filed for a patent from the Korean Intellectual Property Office.

1 to 4 is a view disclosed in Patent No. 10-0598551 of the above patent invention, with reference to this briefly about the orthopedic device of the steel pipe as follows.

1 is a perspective view showing a state in which an orthopedic joint is suspended by a backhoe, FIG. 2 is a front view of an orthopedic joint, and FIG. 3 is an outer surface of both steel pipes to be connected by installing a welding robot on a side of the orthopedic joint. 4 is a side view showing the welding state, and FIG. 4 is a front view showing the welding state of the outer surface of the steel pipe.

Steel orthopedic fitting device disclosed in the above patent invention, as shown in Figure 1 is configured to be transported to the working arm (R), crane (not shown), etc. of the backhoe (BH) is configured to be put or removed from the work site.

The steel pipe orthopedic device, the upper portion is provided with a connecting device 40 that can be connected to the working arm (R) or crane, etc., a pair of forming machines 10 are located side by side, to hold the ends of both steel pipes respectively. It is configured to be. At this time, the pair of molding machines 10 are connected to each other through the connecting device 40 and the traction device 20.

Each shaper 10 is formed to form a circular structure when closed, as shown in Figure 2 is provided with a semi-circular body (11a) at the top, a pair of quarter-shaped body (11b) at the bottom, The pair of quarter-shaped bodies 11b are connected to the lower portion of the semi-circular body 11a by a hinge 13 to be opened and closed when coupled and separated around the steel pipe.

The opening and closing operation of the quarter-shaped body 11b is performed by the opening-closing cylinder 14 connecting between the semi-circular body 11a and the quarter-shaped body 11b.

In addition, the locking device 15 is provided at a portion where both the quarter-shaped bodies 11b abut each other so that the forming machine 10 does not open in a closed state in a circular structure.

Each molding machine 10 is provided with a plurality of shaping devices 16 in which a cylinder is operated in a radial direction at regular intervals so as to shape the roundness of both steel pipes while holding both steel pipes P to be connected.

1 and 3, between the two forming machines 10, in a state in which one forming machine 10 is fixed to one steel pipe, the other forming machine 10 is pulled to allow the other steel pipe to be inserted into the other steel pipe. Apparatus 20 is provided.

On the other hand, in the forming device of the steel pipe, a welding robot 30 is provided in one forming machine 10 as shown in FIG.

The welding robot 30 is made to weld the outer surface of the steel pipe through the welder 33 while moving around the steel pipe along the running rail 32 provided on the side of one molding machine 10.

Accordingly, the steel pipe orthopedic joint of the present invention forms the ends of both steel pipes with a predetermined roundness while inserting both steel pipes P to be connected as shown in FIG. After the connection, it is configured to be welded using the welding robot 30 as shown in Figs.

However, since the patent invention as described above is configured to weld the steel pipe by mounting the welding robot 30 to a molding machine having a considerable weight and volume, the structure of the welding equipment becomes complicated, and the storage and transportation as well as the mounting on the steel pipe Or separating work also causes problems that cause considerable inconvenience.

In particular, the steel pipe orthopedic joint of the invention of the invention, the overall equipment scale is large, the rotation radius of the welding robot 30 to be mounted on the welding is also increased, the steel pipe welding work in the construction site where the space is narrow This is not easy, and thus there is a problem in that the construction period as well as the construction period because the sufficient space for the steel pipe welding by using the orthopedic joint of the patent invention to ensure that enough space.

The present invention has been made in order to solve the above problems, by minimizing the turning radius of the entire equipment by easily mounting the running rail to the periphery of the steel pipe so that the carriage can run, it is easily applied to the narrow construction site An object of the present invention is to provide a portable TIG automatic welding device for connecting steel pipes.

In addition, the present invention, by simplifying the structure of the entire equipment can be configured to ensure sufficient welding quality can be easily made for the storage, storage, mounting, detachment, etc. of the welding equipment, in particular the speed and reliability of the welding operation Another object is to provide a portable TIG automatic welding device for connecting steel pipes to increase productivity and workability.

Portable type TIG automatic welding device for steel pipe connection construction according to the present invention for realizing the above object comprises a traveling rail assembly including a traveling rail formed in a ring type and mounted around the steel pipe; A carriage mounted to the rail assembly and rotating along a steel pipe circumference; A welding torch and a welding wire may be rotatable in opposite directions to enable bidirectional welding of the steel pipe, and may include a welder supported by the carriage to weld the steel pipe joint.

Here, the running rail assembly includes a traveling rail made of a long plate shape and configured to be divided and coupled, and a spike for fixing and installing the traveling rail around the steel pipe.

The running rail is preferably configured such that the inner circumferential surface and the outer circumferential surface of both side surfaces thereof are inclined so that the traveling rollers provided on the carriage may move while contacting the inclined surface.

One side of the traveling rail is formed with a gear tooth to the driving gear of the driving motor provided in the carriage, the gear tooth may be made of a different material than the traveling rail.

The spike is preferably composed of a boss body fixed to the inner surface of the traveling rail through a fixing bolt and made of a synthetic resin material, and a close contact plate made of a metal material in close contact with the outer surface of the steel pipe in a state fixed to the end of the boss body. Do.

The carriage is coupled to the traveling rail assembly, the traveling body portion is rotated, the mounting portion is provided on the upper portion of the traveling body portion is mounted welding equipment, the upper side of the mounting portion is provided in the horizontal and vertical position of the welder It is preferably configured to include a welder control unit made to adjust.

At this time, the driving body portion is a traveling body constituting the body, a plurality of traveling rollers are rotatably installed on the traveling body to be in close contact with both inclined sides formed on the traveling rail, and is installed on one side of the traveling body to generate a driving force It may be configured to include a driving motor to be coupled to the gear teeth provided in the traveling rail in the traveling body and the driving gear for transmitting the driving force of the traveling motor.

The traveling roller is preferably provided with four pairs of rollers, two pairs at the front and two at the rear in the moving direction of the carriage.

The travel body part may include a roller adjuster to adjust the degree of adhesion or to detach the carriage to the travel rail by linearly moving the rollers in close contact with the one of the travel rollers.

The mounting portion includes a mounting plate installed above the traveling body portion, wherein the mounting plate has a horizontal plate positioned at a central portion thereof, and is formed to be inclined in the circumferential direction of the steel pipe on both sides of the horizontal plate. It is preferable that a wing plate is provided.

At this time, it is preferable that the welding machine adjusting unit is installed on the horizontal plate, and the control box and the wire feeding device are respectively installed on both wing plates.

The welder includes a support connected to the carriage, a weaving operation unit provided at the support to allow the welding torch to operate, a fixing block connected to the weaving operation unit and installed in a horizontal direction from the side of the fixing block. It is preferable to include a rotating block connected to the rotation block, a torch clamp rotatably installed in the vertical direction to which the welding torch is mounted, and a wire clamp installed on the torch clamp to provide a welding wire.

The support may be configured to include a first support that is installed long in the left and right direction, the adjuster box is installed on one side, and the second support is installed in the front and rear direction from the first support and the weaving operation unit is installed.

The rotating block is rotatably installed in the front-rear direction with respect to the fixing block so that the welding torch can be easily exchanged, and the support unit has a deleting portion to prevent the welding torch mounted in the torch clamp from rotating in the front-rear direction. It is preferably formed.

Portable type TIG automatic welding device for steel pipe connection construction according to the present invention is configured to run the welding carriage by mounting the running rail directly around the steel pipe to minimize the turning radius of the entire equipment, narrow There is an advantage that can be easily applied to the construction site.

In addition, the present invention has the advantage that the storage, mounting, separation function of the welding equipment is improved, as well as the welding workability because the structure of the entire equipment is simply configured.

In addition, since the present invention is configured to ensure running stability and precise tag welding, sufficient welding quality can be secured, and the productivity and workability can be improved by increasing the speed and reliability of the welding operation.

In particular, the present invention has the advantage that the replacement work of the welding torch can be made more convenient because it is configured to rotate the torch clamp on which the welding torch is mounted in the front-back direction.

In addition, since the present invention is configured to easily change the position of the welding torch and the welding wire according to the welding direction of the steel pipe, it is possible to perform various types of welding operations and at the same time improve the weldability and welding convenience. .

In addition, the present invention has an advantage that the structure around the welder can be easily arranged and the supply of the welding wire can be made smoothly because the welding wire supply device is mounted on the carriage.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

Portable type TIG automatic welding device (hereinafter also referred to as 'automatic welding device') for steel pipe connection construction according to the present invention is a device for butt welding small diameter steel pipes having a diameter of 600 mm or less, and the construction space of the steel pipe It is configured for easy application in this narrow field. Of course, the apparatus of the present invention is not necessarily applied only to small-diameter steel pipes, and can be widely applied to general large steel pipe joint equipment.

The automatic welding device according to the present invention is a device for welding and connecting the connecting portions of both steel pipes in a state where both steel pipes to be connected are welded together after being joined to each other using a steel pipe shaping device (not shown) or the like.

The automatic welding apparatus of this invention is demonstrated in detail with reference to drawings.

5 and 6 are a perspective view and an enlarged view of the main portion of the portable automatic welding device for a steel pipe connection construction according to the present invention mounted state around the steel pipe, Figure 7 and 8 is a portable pipe connection construction according to the present invention 9 and 10 are side views and plan views of the portable automatic welding device for steel pipe connection construction according to the present invention.

11 is a perspective view illustrating a traveling rail according to the present invention, FIG. 12 is a cross-sectional view taken along line A-A of FIG. 11, and FIG. 13 is a view illustrating a state in which a traveling body is mounted on the traveling rail of the present invention.

In the automatic welding apparatus of the present invention, referring to FIG. 5, a traveling rail 110 is installed in a circular ring structure around one steel pipe P, and the carriage 200 moves along the traveling rail 110. The welding machine 300 is provided in the structure, and it is comprised so that the connection part of both steel pipes may be welded.

The traveling rail 110 constitutes a traveling rail assembly 100 to be described below. The driving rail assembly 100 will be described with reference to FIG. 11.

The traveling rail assembly 100 includes a traveling rail 110 having a long plate shape, and a spike 120 for fixing the traveling rail 110 to the periphery of the steel pipe P.

The traveling rail 110 is formed in a divided structure to be mounted around the steel pipe P. In the drawings of the present embodiment, a two-split structure is illustrated.

The divided part includes a rail assembly 130 for assembling or separating the divided traveling rails 110 from each other.

The rail assembly 130 is mutually connected by the connecting member 133 fastened through both of the assembling blocks 131 in a state in which the assembling blocks 131 are respectively installed at the ends of the divided traveling rails 110. By being fixed, the divided traveling rails 110 are assembled to each other to have an integral ring structure.

Of course, when disassembling the running rail 110, when the connection member 133 is released in the opposite manner, both of the assembling blocks 131 are separated and the running rail 110 is divided.

The spike 120 is a portion for mounting and fixing the traveling rail 110 around the steel pipe (P), and the boss body 121 is fixed to the inner surface of the traveling rail 110 through a fixing bolt 125 and , In the state of being fixed to the end of the boss body 121 is made of a close contact plate 123 in close contact with the outer surface of the steel pipe (P).

The boss body 121 is preferably made of a material such as synthetic resin having a certain elastic force, the contact plate 123 is preferably made of the same material or metal member as the steel pipe. This is because the close contact plate 123 is made of a metal member has a strong adhesion around the steel pipe, the boss body 121 is to provide a constant degree of elastic force when the close contact plate 123 is in close contact with the steel pipe will be. Of course, the close contact plate 123 may be configured of a hard synthetic resin plate.

The spike 120 may be in close contact or spaced apart from the circumferential surface of the steel pipe (P) by moving in a radial direction through fastening or loosening the fixing bolt 125 penetrated from the outer surface of the running rail (110). .

Now, the configuration of the traveling rail 110 will be described in detail.

The running rail 110 according to the present invention is formed to support the carriage 200 and the welder 300 in a stable state, and is formed in a long plate structure, and the inner and outer circumferential surfaces of both sides of the plate are All are formed to be inclined (see FIG. 12).

That is, the inclined surfaces 111 are formed such that four corners positioned at both sides of the travel rail 110 are chamfered, and the rollers 213 of the carriage 200, which will be described later, are configured to move while in contact. .

In addition, the running rail 110, the outer surface 113 and the inner surface 114 of the center portion is formed in a concave structure, which is to reduce the load of the entire running rail (110). Of course, the inclined surfaces 111 formed on both sides of the traveling rail 110 are formed outside the relatively thickly protruding portions.

In addition, the drive gear 219 of the carriage 200 is engaged with the driving rail 110 to form a gear tooth 115 to allow the carriage 200 to rotate along the driving rail 110.

Gear tooth 115 is preferably formed on one side of the running rail 110, if necessary, formed of a material different from the running rail 110 is installed in a structure fixed to the side of the running rail (110) It is also possible. The reason why the gear teeth 115 are formed of different materials and coupled to the traveling rail 110 is to ensure that the gear teeth 115 are not easily worn during the driving of the carriage 200 and thus maintain a long life. will be.

Next, the carriage 200 that rotates around the steel pipe along the traveling rail 110 as described above will be described.

The carriage 200 according to the present invention is configured to stably travel along the traveling rail 110 and is configured to adjust the welding position back and forth and up and down while supporting the welder 300.

9 and 10, the carriage 200 is composed of a traveling body 210, a mounting unit 230, and a welder adjusting unit 250. Each configuration will be described.

First, the driving body 210 will be described with reference to FIG. 13.

The travel body 210 includes a travel body 211 constituting the body and a plurality of travel rollers 213 installed on the travel body 211 and closely contacted to both inclined surfaces 111 of the travel rail 110. It is composed.

The traveling body 211 has roller mounting portions 212 erected vertically on both sides thereof, and the traveling rollers 213 are rotatably installed inside the roller mounting portions 212. In this case, it is preferable that the traveling rollers 213 are provided with four pairs of rollers, two pairs at the front and two pairs at the rear in the moving direction of the carriage 200.

In the traveling body 211, among the traveling rollers 213, rollers which are in close contact with one side of the traveling rail 110 are linearly adjusted to adjust the degree of adhesion, or the carriage 200 is detached from the traveling rail 110. The roller adjuster 215 is configured to be.

The roller adjuster 215 may be configured as an adjustment knob made of a screw coupling structure to the travel body 211 outside the roller mounting portion 212 on one side (right in the drawing) of the travel body 211.

A travel motor 217 is formed on the top of the travel body 210 to generate a driving force. In this embodiment, the mounting plate 231 is installed on the upper surface of the travel body 211. The travel motor 217 is installed at the top of the.

A driving gear 219 meshed with the gear tooth 115 of the traveling rail 110 is installed inside the traveling body 211, and the carriage 200 moves while the driving force of the traveling motor 217 is rotated. And configured to move along 110. Of course, a power transmission means is connected between the driving motor 217 and the driving gear 219 so as to transmit rotational power. The power transmission means includes a speed reducer 221, a mounting plate 231, and a traveling body 211. It consists of a drive shaft 223 installed through.

Next, the mounting unit 230 will be mainly described with reference to FIGS. 9 and 10.

The mounting unit 230 is largely composed of a mounting plate 231, a control box 235 provided thereon, a wire feeding device 240, and the like.

Mounting plate 231 is fixedly installed on the upper portion of the traveling body 211, while both sides are inclined in the direction of the steel pipe so as to secure a sufficient mounting area on the upper portion to reduce the mounting height from the center of the steel pipe (P) as much as possible It is made of a bent structure.

 That is, with reference to FIG. 8, the mounting plate 231 has the horizontal board 232 located in the center part, and the wing board 233 inclined in the circumferential direction of the steel pipe on both sides about this horizontal board 232. ) Is located.

The horizontal plate 232 is provided with a vertical leveling device, and both wing plates 233 are provided with a control box 235 and a wire feeder 240, respectively.

Here, the control box 235 and the wire feeder 240 installed on the wing plate 233 will be described.

The control box 235 is a part composed of circuits for controlling the overall welding operation, the moving speed of the carriage 200, the feeding speed of the wire, the position adjustment of the welder 300, the power supply of the welder 300, It is configured to control various elements that need to be controlled.

The control box 235 may constitute some control unit in the box itself, and the other control unit may be configured through a separate control box. The configuration of the adjuster box 310 will be described again below.

The wire feeding device 240 is a feeding roller 243 on which the welding wire 241 is wound, and a feeding supply for supplying a supply force to supply the welding wire 241 to the welding machine 300 by the feeding roller 243. In order to supply the welding wire 241 to the motor 245, the feed regulator 247 for adjusting the supply speed of the welding wire 241, and the wire clamp 380 to be described later on the feed regulator 247 side. The feed cable 248 is connected to.

Next, the welder adjusting unit 250 will be described.

The welder adjusting unit 250 is installed to be supported on the horizontal plate 232 of the mounting plate 231, so that the position of the welding torch 370 of the welding machine 300 in the horizontal (front and rear) or vertical (vertical) direction. The horizontal adjuster 251 and the vertical adjuster 255 are configured to adjust the position.

The horizontal adjuster 251 and the vertical adjuster 255 use a linear motor to move the welder 300 horizontally (forward and backward lengthwise) or vertically (radially in the direction of the steel pipe) like a conventional position adjusting device. It may be configured to be moved to, but in the present embodiment, the horizontal adjustment unit 251 is configured to enable manual adjustment, the vertical adjustment unit 255 illustrates a configuration configured to enable automatic adjustment.

That is, the horizontal adjustment unit 251 is a pair of horizontal shaft 252 located in the horizontal direction on the upper portion of the mounting plate 231 is inserted into the guide bracket 253 fixed to the mounting plate 231 In the state, after adjusting the position of the front and rear direction to an appropriate length, and then using the fixing handle to fix the position fixing block 254, the position of the horizontal axis 252 is configured to be fixed. Of course, it is also possible to configure not only the manual method but also automatically adjust the horizontal position using a linear motor or the like.

The vertical adjustment unit 255 is configured to move the first support 258 in the vertical direction, that is, the vertical direction, the drive motor is installed in the vertical adjustment box 257 like a normal vertical position adjustment device, The first support 258 moves up and down by the driving force of the drive motor.

Of course, the vertical adjustment box 257 is fixedly installed in the vertical direction to the connection plate 256 connected to the horizontal adjustment unit 251, the inside of the drive motor, vertical guide shaft, gear for vertical operation or Chains and the like.

Next, a welding machine 300 supported by the carriage 200 as described above and performing welding will be described.

The welder 300 will be described in order from the portion connected to the vertical adjuster 255, the first support 258, the adjuster box 310, the second support 320, the weaving actuator 330, and the fixing block 340. ), A rotating block 350, a torch clamp 360, a welding torch 370, a wire clamp 380, and the like.

The first support 258 is formed long in the left and right direction, it is preferably formed of a rod structure made of an insulating material.

In the middle portion of the first support 258, when the welding torch 370 rotates back and forth, a deleting unit 259 is formed so that interference does not occur. The size and depth of the eraser 259 may be appropriately set according to the shape of the welding torch 370.

One side of the first support 258 is provided with a regulator box 310, the regulator box 310 is configured to adjust the welding operation, weaving speed and the like.

The second support 320 is installed long in the front and rear direction from the bottom of the first support 258 to the upper and lower weaving operation unit 330 is configured.

The weaving motor 331 is installed on the upper portion of the second support 320, the weaving plate 333 to enable the weaving operation is installed on the lower portion.

That is, the weaving plate 333 is installed to allow relative movement with the second support 320 so that when the weaving motor 331 operates, the welding torch (sliding forward and backward from the second support 320) 370 is configured to enable weaving welding.

A fixing block 340 is installed below the weaving plate 333.

The rotating block 350 is installed on the side of the fixed block 340, the rotating block 350 is configured to be connected to be rotated in the front and rear direction from the fixed block 340.

The reason why the fixed block 340 and the rotation block 350 are installed to be rotatably connected to each other will be described below with reference to FIGS. 16 to 18.

The torch clamp 360 is installed in the rotary block 350, and the welding torch 370 is assembled into the rotary block 350 by inserting the torch clamp 360 and the rotary block 350 upward and downward.

A cooling water passage for cooling the welding torch 370 during welding is formed inside the torch clamp 360, and a cable 361 for supplying power and cooling water to the welding torch 370 is connected. .

One side of the torch clamp 360 is provided with a wire clamp 380 for supporting the welding wire 241 provided from the wire feeder 240 and at the same time to guide the wire supplied to the end of the welding torch 370. .

In particular, the torch clamp 360 is rotatably installed in the rotation block 350 by 180 degrees, for the purpose of freely selecting and operating the welding direction in the clockwise or counterclockwise direction when welding the steel pipe.

A detailed description thereof will be described again with reference to FIGS. 16 to 19.

The welding torch 370 mounted on the torch clamp 360 is configured to enable the gas-tungsten arc welding method, that is, the TIG welding method, among the arc welding methods. It is configured to supply an inert gas (eg, argon gas) around the electrode, and is configured to melt and weld the welding wire 241 while generating an arc between the electrode and the welding portion during welding.

The torch clamp 380 is a component that supports to continuously supply the welding wire 241, that is, the solid wire (SOLID WIRE) to the welded portion of the steel pipe, so as to properly adjust the supply position of the welding wire It is composed.

Now, the structure of the above-mentioned weaving operation unit 330 and the welding torch rotating structure will be described.

First, referring to FIGS. 14 and 15, the weaving operation unit 330 will be described in detail.

FIG. 14 is a side view illustrating the welder weaving structure of the present invention, and FIG. 15 is a plan view seen from the line B-B of FIG. 14.

As shown in these figures, the second support 320 is connected to the weaving shaft 335 which repeatedly moves from side to side between the weaving motor 331 and the weaving plate 333 when viewed from the side.

Of course, the second support 320 is formed with a weaving hole 321 through which the weaving shaft 335 penetrates, and the weaving hole 321 is a slot formed long in the movement direction of the weaving shaft 335. It is preferable that it consists of a structure.

In the weaving motor 331, the weaving generating unit may be configured to repeatedly operate the weaving shaft 335, and the weaving generating unit may rotate according to the forward rotation or the reverse rotation of the weaving motor 331. Motor gear 337 and a rack 338 that moves left and right in accordance with the rotational movement of the motor gear 337. Of course, the rack 338 is fixed to the weaving shaft 335 is installed.

Here, the weaving motor 331 may be configured as a stepping motor capable of precise control by an inverter, and may be configured to control the weaving width by controlling the potentiometer meta of the weaving controller 339 as shown in FIG. 15. .

And it is preferable that a guide mechanism is installed between the second support 320 and the weaving plate to enable a stable sliding reciprocating motion.

As described above, the weaving operation unit 330 according to the present invention is configured to enable the weaving operation of the welding torch 370 by the reciprocating sliding motion, thereby implementing the steel pipe welding while implementing a stable weaving operation with a simple structure.

Next, with reference to FIG. 16 and FIG. 17, the back and forth rotational motion of a torch support is demonstrated.

Figure 16 is an exploded perspective view for explaining the front and rear rotational movement of the torch support in the present invention, Figure 17 is a cross-sectional view of the combined state of the two blocks seen in the direction of C-C of FIG.

As shown in these figures, the torch support is divided into a fixed block 340 and a rotating block 350, the fixed block 340 is installed fixed to the weaving plate 333, the rotating block 350 is configured to be coupled to the rotating shaft 353 to the fixed block 340 to rotate.

That is, a shaft hole 343 is formed inwardly from the side of the fixing block 340, the rotating block 350 is installed so that the rotating shaft 353 protrudes long, the rotating shaft 353 is the shaft hole 343 ), The rotation block 350 is assembled to the fixed block 340 in a fixed state by fixing its position with the detent knob 345 provided in the fixing block 340.

Here, a detent ball 346 and a groove 354 provided in a normal detent mechanism are formed between the detent knob 345 and the rotation shaft 353 of the fixing block 340, respectively, so that the rotating block ( 350 is configured to stop exactly at the set angle.

The reason why the rotatable block 350 is configured to be rotatable from the fixed block 340 is that the rotatable block 350 is replaced when the welding torch 370 inserted into the torch clamp 360 in the vertical direction is replaced. To rotate the welding torch 370 more conveniently in a state rotated 90 degrees forward from the fixing block 340.

In addition, when the welding torch 370 is rotated as described above with reference to FIG. 8, the first support 258 includes the upper end of the torch upper case so that the upper end of the torch is not caught by the first support 258. ) Is formed.

The deleting unit 259 is preferably formed to be deeper toward the lower side from the upper side in consideration of the radius of rotation of the welding torch 370.

Next, referring to FIGS. 16 to 19, the 180-degree left-right rotational motion of the welding torch 370 will be described.

18 and 19 is a front view of the main portion showing a rotating structure of the welding torch in the present invention.

In the present invention, the welding torch 370 is installed to enable a 180-degree rotational movement on the rotary block 350, which allows the vertical axis 363 provided on the torch clamp 360 to rotate on the rotary block 350. It is configured to be possible by installing in combination.

That is, when the torch clamp 360 is rotated in the left direction or the right direction while the vertical axis 363 of the torch clamp 360 is inserted into the rotation block 350, the wire clamp 380 is shown in FIG. 18. As shown in FIG. 19, the welding torch 370 moves to the left or the right.

This structure, as shown in Figure 16 and 17, the detent coupling structure in a state that the vertical axis 363 of the torch clamp 360 is inserted into the torch hole 351 of the rotary block 350. The position is determined by the 180 degree phase difference.

That is, the detent ball 357 supported by the detent bolt 355 and the spring 356 is mounted in the torch hole 351, and a detent groove ( As the 364 is formed, the position of the welding torch 370 may be accurately determined.

On the other hand, the rotating block 350 is formed so that one portion is divided around the torch hole 351 is configured to firmly fix the torch clamp 360 by using a tightening bolt 358.

As described above, when welding the steel pipe as configured to rotate the torch clamp 360, the welding direction is set in the clockwise or counterclockwise direction of the steel pipe as shown in Figs. The welding torch and the wire clamp are rotated and positioned according to the direction so that welding can be freely performed in any direction of the steel pipe.

1 is a perspective view showing a state in which a prior art steel pipe shaping device is mounted on a backhoe;

Figure 2 is a front view showing the internal structure of the prior art steel pipe shaping device,

3 is a side view showing a welding state in which a welding robot is added to a steel pipe orthopedic joint of the prior art;

4 is a front view of a state in which a welding robot is added to a steel pipe shaping device of the prior art,

5 is a perspective view showing a state in which a portable automatic welding device for a steel pipe connection construction according to the present invention is mounted on a steel pipe,

Figure 6 is a detailed view of the portable automatic welding device shown in Figure 5,

7 is a front view showing a state in which the portable automatic welding device for steel pipe connection construction according to the present invention mounted on the steel pipe,

8 is a front view of the portable automatic welding device shown in FIG.

Figure 9 is a side view showing a state in which the portable automatic welding device for steel pipe connection construction according to the present invention mounted on the steel pipe,

10 is a plan view showing a state in which the portable automatic welding device for steel pipe connection construction according to the present invention mounted on the steel pipe,

11 is a perspective view showing a running rail according to the present invention,

12 is a cross-sectional view taken along the line A-A of FIG. 11;

13 is a view showing a state in which the travel body is mounted on the travel rail of the present invention,

Figure 14 is a side view for explaining the welder weaving structure in the present invention,

15 is a plan view seen from the line B-B of FIG. 14,

Figure 16 is an exploded perspective view for explaining the front and rear rotational movement of the torch support in the present invention,

17 is a cross-sectional view of a combined state of two blocks seen in the direction of C-C of FIG. 16;

18 and 19 is a front view of the main portion showing a rotating structure of the welding torch in the present invention.

Claims (15)

A running rail assembly formed of a ring type and including a running rail mounted around the steel pipe; A carriage mounted to the rail assembly and rotating along a steel pipe circumference; A support connected to the carriage, a weaving operation part provided on the support to allow the welding torch to weaving operation, a fixing block connected to the weaving operation unit, and a rotation block connected in a horizontal direction from the side of the fixing block. And a torch clamp rotatably mounted to the rotary block in a vertical direction and equipped with a welding torch, and a wire clamp provided in the torch clamp to provide a welding wire, the welding machine for welding a steel pipe joint. Portable TIG automatic welding device for steel pipe connection. The method according to claim 1, The traveling rail assembly includes a traveling rail made of an elongated plate shape and configured to be divided and coupled, and a spike for fixing and installing the traveling rail around the steel pipe. (TIG) Automatic Welding Device. delete delete delete The method according to claim 1 or 2, The carriage is coupled to the traveling rail assembly, the traveling body portion is rotated, the mounting portion is provided on the upper portion of the traveling body portion is mounted welding equipment, the upper side of the mounting portion is provided in the horizontal and vertical position of the welder Portable type TIG (TIG) automatic welding device for connecting the steel pipe, characterized in that it comprises a welder control unit made to adjust. The method according to claim 6, The traveling body portion includes a traveling body constituting a body, a plurality of traveling rollers rotatably installed on the traveling body and in close contact with both inclined side surfaces formed on the traveling rail, and a driving force installed on one side of the traveling body to generate driving force. Portable type TIG automatic welding device for a steel pipe connection construction, characterized in that it comprises a motor and a drive gear installed to be engaged with the gear teeth provided on the travel rail in the travel body to transmit the driving force of the travel motor. The method according to claim 7, The traveling roller is a portable type TIG automatic welding device for a steel pipe connection construction, characterized in that four pairs of rollers are provided, two pairs in the front and two pairs in the rear in the moving direction of the carriage. The method according to claim 7, The traveling body portion, the steel pipe connection, characterized in that the roller is provided with a roller adjuster to adjust the degree of close contact or to remove the carriage to the travel rail by linearly moving the rollers that are in close contact with the one of the running rollers Portable portable TIG automatic welding device. The method according to claim 6, The mounting portion is configured to include a mounting plate installed on the upper side of the traveling body portion, The mounting plate, the horizontal plate is located in the center portion, portable type TIG automatic welding for steel pipe connection construction characterized in that the wing plate formed on both sides of the horizontal plate inclined in the circumferential direction of the steel pipe is provided. Device. The method according to claim 10, The welding machine control unit is provided on the horizontal plate, Portable type TIG automatic welding device for connecting steel pipes, characterized in that the control panel and the wire feeder is installed on each of the two wing plates. delete The method according to claim 1, The support is installed in the left and right direction for the steel pipe connection construction, characterized in that it comprises a first support that is installed in the adjuster box on one side, and the second support is installed in the front and rear direction from the first support, the weaving operation unit is installed. Portable TIG Automatic Welding Device. The method according to claim 1, The rotary block is a portable type TIG automatic welding device for connecting a steel pipe, characterized in that the installation is rotatably installed in the front and rear direction with respect to the fixed block to facilitate the exchange of the welding torch. The method according to claim 14, Portable support type TIG automatic welding device for connecting steel pipes, characterized in that the support portion is provided with a removal portion to prevent the welding torch mounted in the torch clamp rotates in the front and rear direction.

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