KR102365562B1 - Pipe welding system - Google Patents

Abstract

The present invention relates to a pipe welding system, comprising a body part, a grip part, and a rotating part. The present invention provides the pipe welding system that can improve a working environment by configuring a foreign substance discharge part that can suck in foreign substances from welding at the bottom of a workbench, and is implemented to achieve a precise welding work through the configuration of a vibration damping part.

Description

Pipe welding system

The present invention relates to a pipe welding system.

In general, when welding a pipe, a skilled worker binds the pipe (pipe) to be welded in the prior art with one hand, and then performs the welding operation while holding it with the other hand. At this time, the shaking of the worker's hand However, there was a disadvantage that the welding operation could not be performed precisely due to vibration, and this disadvantage caused poor welding.

After that, the workpieces such as pipes were fixed using three or four jaws moving in all directions. Usually, these chucks include a main chuck body with a plurality of guide grooves formed around it toward a central through hole, and a main chuck. A jaw that is inserted into the guide groove of the body and moves toward the through hole of the main chuck body to fix the workpiece, a scroll installed inside the main chuck body to move the jaw as it rotates, and a pinion gear that meshes with the scroll and rotates. is done

However, even when welding is performed by fixing the workpiece in this way, there is a problem that the pipe shakes minutely during the welding operation and interferes with the precise operation There were also problems with harm and obstruction of view.

The present invention has been devised to solve the above problems,

We provide a pipe welding system that is implemented to improve the work environment, such as obstruction of view, through the configuration of the foreign substance discharge part that can suck in foreign substances by welding from the lower part of the workbench, and to achieve precise welding work through the configuration of the vibration damping part.

The technical problems of the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

A pipe welding system according to an embodiment of the present invention includes: a main body including a support frame vertically coupled to the ground or a workbench, and a cylindrical connecting frame connecting the support frame and the rotating part; A gripper for fixing a pipe to be welded; and a rotating part for rotating the gripped pipe.

In one embodiment, the rotation unit, the inside is formed through the rotation member rotates by receiving a rotational force; a fixing member for fixing the rotating member and installed at both ends of the rotating member; and a rotating means for rotating the rotating member by providing a rotating force.

In one embodiment, the gripping unit, a fixed chuck coupled to one end of the rotating member and rotated together with the rotating member, pressurizing and fixing the pipe to be welded through three or more fixed jaws formed at equiangular intervals therein; may include

In one embodiment, the fixed chuck may include: a chuck body having a plurality of guide grooves formed around it toward a central through hole; a fixing jaw inserted into the guide groove of the chuck body and moving up and down toward the through hole of the chuck body; a scroll installed inside the chuck body to move the fixed jaw as it rotates; a first gear meshed with the scroll to rotate the scroll; and a circular jig that is bolted to the tip of the chuck body, an open hole corresponding to the fixing jaw is formed toward the center so as not to interfere with the movement of the fixing jaw, and a pipe to be welded is in close contact with the tip.

In one embodiment, the fixing jaw includes: a body portion having guide grooves fitted to the guide rails of the chuck body formed on both sides; a second gear engaged with the scroll on one surface of the body; a pressing part provided at one end of the body part and protruding toward the tip of the circular jig to press the outer periphery of the pipe to be welded; And it is coupled to one surface of the body portion is formed to extend forward, auxiliary tubing for secondarily pressurizing and fixing the pipe to be welded; may include.

In one embodiment, the pipe welding system further includes a foreign material discharge unit, the foreign material discharge unit, the upper surface of the main body and the rotating unit and the workbench in which the holding unit is installed; and a fume removal device for suctioning and removing welding gas and fumes.

In one embodiment, the work table, the suction hole formed in the center of the upper plate; and a body frame positioned around the suction hole to form a rectangular frame around the suction hole, and a fixing bolt provided to fix the suction hopper at a position corresponding to the inside of the rectangular frame.

In one embodiment, the fume removal device, a suction hopper mounted on the lower portion of the suction hole; an exhaust hose having one end connected to the suction hopper; and an exhaust fan connected to the other end of the exhaust hose and disposed outside the work space.

In one embodiment, the pipe welding system further comprises a vibration damping unit, the vibration damping unit, while surrounding the circumference of the pipe to be welded clamp unit for transmitting the vibration of the pipe; The clamp portion includes a first connection portion for connection with the absorption portion; and a fixing member installed on one side of the upper surface of the workbench and provided with a second connection part for connection with the absorption part.

In one embodiment, the absorbing part may include: a third connection part for rotatable connection with the second connection part; a fourth connector for rotatable connection with the first connector; and a connecting member connecting the third connecting portion and the fourth connecting portion, wherein the third connecting portion and the fourth connecting portion face each other and are disposed symmetrically to each other, and the first connecting portion to the fourth connecting portion form a hole and the first connecting portion to the fourth connecting portion are rotatably connected to each other through each hole, and the rotatable connection through the hole may be characterized in that it is connected by a fifth connecting portion.

The above-described problem solving means are merely exemplary, and should not be construed as limiting the present application. In addition to the exemplary embodiments described above, additional embodiments may exist in the drawings and detailed description.

According to the above-described aspect of the present invention, the work environment such as obstruction of view is improved through the configuration of the foreign material discharge unit that can suck the foreign material by welding from the lower part of the work bench, and the precise welding operation can be performed through the vibration damping unit configuration. It can provide the effect that

The effects of the present invention are not limited to the above-mentioned effects, and various effects may be included within the range apparent to those skilled in the art from the following description.

1 is a perspective view showing a pipe welding system according to an embodiment of the present invention.
Figure 2 is an assembly view showing the rotating part of the pipe welding system according to an embodiment of the present invention.
Figure 3 is a view showing a grip portion of the pipe welding system according to an embodiment of the present invention.
4 is a view showing the fixing jaw of the holding part according to an embodiment of the present invention.
5 is a view showing the inside of the gripper according to an embodiment of the present invention.
6 is a view showing a workbench of the foreign material discharge unit of the pipe welding system according to an embodiment of the present invention.
7 is a view showing a state in which the foreign material discharge unit of the pipe welding system according to an embodiment of the present invention is applied.
8 is a view showing a vibration damping unit of the pipe welding system according to an embodiment of the present invention.
9 is a view showing an absorption unit of a pipe vibration damping unit according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0012] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0010] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0010] Reference is made to the accompanying drawings, which show by way of illustration specific embodiments in which the present invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the present invention. It should be understood that the various embodiments of the present invention are different but need not be mutually exclusive. For example, certain shapes, structures, and characteristics described herein with respect to one embodiment may be implemented in other embodiments without departing from the spirit and scope of the invention.

In addition, it should be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the present invention. Accordingly, the detailed description set forth below is not intended to be taken in a limiting sense, and the scope of the present invention, if properly described, is limited only by the appended claims, along with all scope equivalents as those claimed. Like reference numerals in the drawings refer to the same or similar functions throughout the various aspects.

On the other hand, throughout this specification, when it is said that a part "includes" a certain component, it means that other components may be further included, rather than excluding other components as long as the contrary description ‰A do. In addition, as used herein, a “unit” for a component performs at least one function or operation. And “unit” may perform a function or operation by hardware, software, or a combination of hardware and software.

Terms including an ordinal number such as 1st, 2nd, etc. may be used to describe various components, but these components are not limited by the above-mentioned terms. The above terminology is used only for the purpose of distinguishing one component from another component.

In the present specification, the term "comprising" is intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features, number, or step , it should be understood that it does not preclude in advance the possibility of the presence or addition of an operation, component, part, or combination thereof. When a component is referred to as being “connected to” another component, it may be directly connected or connected to the other component, but it should be understood that another component may exist in between.

In addition, in describing the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be abbreviated or omitted.

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

1 is a perspective view showing a pipe welding system according to an embodiment of the present invention.

Figure 2 is an assembly view showing the rotating part of the pipe welding system according to an embodiment of the present invention.

Figure 3 is a view showing a grip portion of the pipe welding system according to an embodiment of the present invention.

4 is a view showing the fixing jaw of the holding part according to an embodiment of the present invention.

5 is a view showing the inside of the gripper according to an embodiment of the present invention.

6 is a view showing a workbench of the foreign material discharge unit of the pipe welding system according to an embodiment of the present invention.

7 is a view showing a state in which the foreign material discharge unit of the pipe welding system according to an embodiment of the present invention is applied.

8 is a view showing a vibration damping unit of the pipe welding system according to an embodiment of the present invention.

9 is a view showing an absorption unit of a pipe vibration damping unit according to an embodiment of the present invention.

The pipe welding system 10 according to an embodiment of the present invention may include a body part 100 , a rotating part 200 , and a gripping part 300 .

The main body 100 according to an embodiment may include a cylindrical connecting frame 120 that connects the support frame 110 vertically coupled to the ground or workbench and the rotating unit 200 .

The rotating part 200 according to an embodiment may rotate the gripped pipe, and the gripping part 300 may fix the pipe, which is a welding object.

The rotating unit 200 according to an embodiment may include a rotating member 210 , a fixing member 220 , and a rotating means 230 .

The rotating member 210 is formed through the inside and can be rotated by receiving rotational force from the rotating means 230 to be installed later. 310), so that the pipe to be welded, which can be formed in various lengths, can be applied to the present invention without being limited by the length, thereby securing the versatility of use of the device.

The fixing member 220 is positioned at both ends of the rotating member 210 to stably fix the position of the rotating member 210 .

The rotating means 230 provides a rotational force to the rotating member 210 so that the rotating member 210 rotates, and is formed on the motor 231 providing the rotational force and the shaft 232 of the motor 231 . A first pulley 235, a second pulley 233 formed on the rotating member 210, and an interlocking belt 237 for interconnecting the first pulley 235 and the second pulley 233. can That is, the rotational force of the motor 231 is supplied to the rotating member 210 through the pulleys 233 and 235 and the interlocking belt 237 so that the rotating member 210 can rotate.

The gripper 300 according to an embodiment may include a fixed chuck 310 .

In one embodiment, the fixed chuck 310 is coupled to one end of the rotating member 210 and rotated together with the rotating member 210, through three or more fixed jaws 313 formed at equiangular intervals therein. The pipe to be welded can be fixed under pressure.

The fixed chuck 310 may include a chuck body 311 , a fixed jaw 313 , a scroll 314 , a first gear 315 , and a circular jig 317 .

The chuck body 311 has a cylindrical shape, and guide grooves 312 are formed in three directions.

And a through hole is formed in the center so that the pipe to be welded can be inserted and fixed in the through hole. The chuck body 311 is firmly fixed by being bitten by the connection frame 120 of the main body 100 .

The scroll 314 may be installed inside the chuck body 311 and move the fixed jaw 313 as it rotates.

That is, the scroll 314 is formed in a disk shape, and a vortex groove is formed on one surface to mesh with the second gear 3134 of the fixed jaw 313 . The scroll 314 has a circular gear formed on the other side thereof to mesh with the first gear 315 .

The first gear 315 may be engaged with the scroll 314 to rotate the scroll 314 .

The circular jig 317 is bolted to the front end of the chuck body 311 , and an opening 316 corresponding to the fixing jaw 313 is formed so as not to interfere with the movement of the fixing jaw 313 , and a pipe to be welded at the tip to make it stick.

The circular jig 317 is fixedly installed at the front end of the chuck body 311 and has a disk shape, and a fastening hole corresponding to a bolt hole formed in the chuck body 311 is formed, and a plurality of opening holes opened around the chuck body 311 are also formed.

The open hole is formed to correspond to the guide groove 312 of the chuck body 311 , and a hole corresponding to the through hole of the chuck body 311 is formed in the center.

In one embodiment, the fixing jaw 313 may further include a body portion 3133 , a second gear 3134 , and a pressing portion 3135 .

The fixing jaws 313 are respectively inserted into the guide grooves 312 of the chuck body 311 and slide in the longitudinal direction of the guide grooves 312 , that is, in the center direction of the chuck body 311 , and are located in the center of the pipe to be welded. will be fixed

The fixing jaw 313 includes a body portion 3133 , a second gear 3134 provided on one surface of the body portion 3133 , and a pressing portion 3135 provided on one end of the body portion 3133 .

The body portion 3133 has guide grooves 3132 formed on both sides, and guide rails 3131 are formed on both sides of the guide grooves 312 of the chuck body 311 to guide grooves 3132 of the body portion 3133. The chuck body 311 can be slid by being inserted into the guide rail 3131 of the chuck body 311 .

The second gear 3134 is integrally formed on one surface of the body 3133 , and meshes with a vortex groove of the scroll 314 provided in the chuck body 311 , and the body 3133 is rotated by the scroll 314 . ) is moved.

The pressing part 3135 is provided at one end of the body part 3133 to press the outer periphery of the pipe, and is formed to be the same as or slightly wider than the width of the body part 3133, and to the tip across multiple stages like a step shape. It protrudes, and the surface in close contact with the pipe to be welded is formed as a curved surface, so that it can be firmly adhered to the outer periphery of the pipe to be welded.

That is, the first gear 3134 is installed to idle from the chuck body 311 and is meshed with the gear of the scroll 314 . And a wrench groove is formed at one end exposed to the outside so that rotation is made by the wrench.

Accordingly, when the first gear is rotated using a wrench, the scroll 314 rotates, and the fixed jaw 313 meshed with the scroll 314 moves toward the center of the chuck body 311 or in the opposite direction according to the rotation direction of the wrench. It is possible to fix the pipe to be welded as the distance between the fixing jaws 313 is narrowed or moved by moving.

In one embodiment, the fixing jaw 313 is coupled to one surface of the body portion 3133 to extend forward, and may further include an auxiliary jaw 318 for secondarily pressurizing and fixing the pipe to be welded.

According to an embodiment, the pipe welding system 10 may further include a foreign material discharge unit 400 .

In an embodiment, the foreign material discharge unit 400 may include a workbench 410 and a fume removal device 420 .

In one embodiment, the workbench 410 may include a suction hole 412 , a body frame 416 and a fixing bolt 414 , and the upper surface of the workbench 410 has a main body 100 and a rotating unit 200 . ) and the holding part 300 may be installed.

The suction hole 412 is formed in the center of the upper plate of the work table 410 so that the suction hopper 422 can be mounted thereon.

The body frame 416 may be formed in the form of a desk having an internal space, and may be formed in the shape of a square frame 417 so that a suction hole 412 may be formed in the central portion of the upper plate.

The material constituting the body frame 416 is a steel pipe, and these may be connected through mutual welding or may be integrally formed.

The fixing bolts 414 may be disposed on all sides of the rectangular frame 417 in order to fix the suction hopper 422 at a position corresponding to the inside of the rectangular frame 417 . That is, the suction hopper 422 can be fixed by tightening the fixing bolts 414 .

In an embodiment, the fume removal device 420 may include a suction hopper 422 , an exhaust hose 424 , and an exhaust fan 426 .

The suction hopper 422 may be inserted and mounted in the suction hole 412 in the lower internal space of the work bench 410 in a state where the inlet faces upward at the lower portion of the suction hole 412 . Thereafter, the suction hopper 422 is fixed by tightening the fixing bolt 414 .

The exhaust hose 424 covers the end of the exhaust hose 424 with the outer periphery of the cylindrical part connected to the suction hopper 422 from the opposite side of the inlet of the suction hopper 422, and tightens the outer part using a band or a clamp part to connect. can In addition, the exhaust hose 424, it is preferable to use a material of the corrugated type freely bendable.

The exhaust fan 426 is connected to the other end of the exhaust hose 424 and may be disposed outside the work space.

The exhaust fan 426 includes, for example, a housing, a motor provided on one side thereof, and a fan connected to the motor shaft, and sucks gas from the opposite inlet where the fan is installed, and removes the part where the fan is installed. It may be an exhaust device configured to be discharged through the exhaust system.

In addition, the exhaust fan 426 is preferably disposed in a secluded place near the outer wall surface of the structure constituting the work space so as not to interfere with the entry and exit of workers and other operations, and the exhaust hose 424 is the welding operation position and the exhaust fan ( 426), a plurality of them may be connected and used to respond to a change in distance between them.

With this configuration of the foreign material discharge unit 400, the welding gas and fume are not diffused into the sealed working space, but are immediately sucked in and discharged to the outside of the working space, thereby preventing the spreading of the welding gas and fumes in the working space. The concentration of welding gas and fume does not increase.

Therefore, since several workers in the work space, including the welding worker, are not exposed to welding gas and fumes that are harmful to health, diseases resulting therefrom are prevented and work efficiency deterioration is prevented.

In addition, the field of view in the work space is more clearly secured during the welding operation, so that the pipe welding can be performed more easily.

According to an embodiment, the pipe welding system 10 may further include a vibration damping unit 500 .

In an embodiment, the vibration damping unit 500 may include a clamp unit 510 and an absorption unit 550 .

The clamp part 510 according to an embodiment may include a first connection part 511 , a second connection part 522 , and a fixing member 520 , and surrounds the circumference of the pipe P to be welded. The vibration of (P) can be transmitted.

The first connection part 511 allows the absorption part 550 and the clamp part 510 to be connected.

The fixing member 520 may be installed on one side of the upper surface of the work table 410 and separately installed outside the pipe.

The second connection part 522 allows the absorption part 550 and the fixing member 520 to be connected.

The absorption part 550 according to an embodiment includes a third connection part 551 for connection with the second connection part 522 , a fourth connection part 552 for connection with the first connection part 511 , and a third connection part ( 551 ) and a connecting member 555 connecting the fourth connecting portion 552 , and two pairs of anti-twisting devices 555a and 555b positioned on the connecting member 555 .

The connection member 555 is formed by twisting a wire in multiple layers, and while moving by the vibration of the pipe P, the multiple layers of the wire rub each other and absorb vibrations generated during welding.

The third connection part 551 and the fourth connection part 552 may include holes 554a and 554b for connection with the first connection part 512 and the second connection part 522 . In addition, the third connecting portion 551 and the fourth connecting portion 552 are composed of upper and lower surfaces perpendicular to the central axis of the holes 554a and 554b, and a side surface connecting the upper and lower surfaces, passing through the side surface and connecting It includes a hole into which the member 555 can be inserted. The hole may be curved in one direction, and the direction of curvature may be a direction toward the center of the holes 554a and 554b of the third connection part 551 and the fourth connection part 552 .

The third connection part 551 and the fourth connection part 552 may face each other and be symmetrically disposed. The third connection part 551 and the fourth connection part 552 arranged in this way may be connected by two separate connection members 555 or one connection member 555 .

In FIG. 9 , the dotted line illustrates the state of the connection member 555 inserted into the hole of the third connection part 551 and the fourth connection part 552 . The dotted circle is a connecting member exposed to the outside connecting the virtual curve formed by the two holes of the third connecting portion 551 and the fourth connecting portion 552 and the third connecting portion 551 and the fourth connecting portion 552, respectively. There are four inflection points (5561, 5562, 5563, 5564) of the curve formed by (555).

Looking at the connection between the pipe P to be welded and the absorption part 550 , the first connection part 512 is provided on the outer surface of the clamp part 510 toward the fixing member 520 . The first connecting portion 512 is rotatably coupled to the fourth connecting portion 552 of the absorbing portion 550 opposing thereto. The role of the first connection part 512 is to connect the pipe P to be welded to the absorption part 550 , and to transmit the vibration of the clamp part 510 received from the pipe to be welded to the absorption part 550 .

The absorption portion 550, the first connection portion 512 has an opening passing through the plane thereof, the corresponding fourth connection portion 552 also has a corresponding opening, and a fifth connection portion 553 penetrating the two openings. may further include.

Looking at the action and effect of the vibration damping unit 500 , the vibration of the pipe P is transmitted to the clamp unit 510 surrounding the pipe. The vibration transmitted to the clamp unit 510 is transmitted to the fourth connection unit connected to the first connection unit 512 , and the absorption unit 550 receiving the vibration in this way acts as a buffer.

The connecting member 555 formed by twisting several layers of wire absorbs vibration while rubbing against each other by the received vibration. At the same time, it has the shape of a circle with four inflection points, so it becomes a buffering configuration that absorbs vibrations that perform a buffering function like a spring as a whole. In addition, the connecting member 555 is inserted into the holes of the third connecting portion 551 and the fourth connecting portion 552 , and a damping agent having a high coefficient of friction may be present in the hole, and the damping agent and the connecting member 555 . Vibration can be absorbed by friction with In order to prevent twisting of the connecting member 555 according to this buffering mechanism, anti-twisting devices 555a and 555b may be included at two points between the third connecting part 551 and the fourth connecting part 552 .

Twisting of the connecting member 555 occurs due to the buckling load of the wire, and the buckling load is a load applied to the wire because vibration may occur irregularly in several directions instead of one. Accordingly, the twist prevention devices 555a and 555b are a configuration that eliminates such a buckling load, and may be a method of increasing the mass of the middle portion of the wire. For example, as shown in FIG. 8 , a mass body thicker than the thickness of the wire may be positioned in the middle of the wire.

Therefore, by applying the same configuration as the vibration damping unit 500, damage to the pipe welding system 10 due to excessive vibration is prevented, the lifespan of the equipment is increased, and the reliability of this system is improved by enabling precise welding work because there is no shaking. has an improving effect.

In the above, preferred embodiments of the present invention have been illustrated and described, but the present invention is not limited to the specific embodiments described above, and it is common in the technical field to which the present invention pertains without departing from the gist of the present invention as claimed in the claims. Various modifications are possible by those having the knowledge of, of course, and these modifications should not be individually understood from the technical spirit or prospect of the present invention.

10. Pipe Welding System
100. body part
200. Rotating part
300. Grip part
400. Foreign matter discharge part
500. Vibration damping unit

Claims (4)

a body part 100 including a support frame 110 vertically coupled to the ground or workbench 410 and a cylindrical connection frame 120 connecting the support frame 110 and the rotating part 200;
A holding part 300 for fixing the pipe (P), which is a welding object; and
Including; a rotating part 200 for rotating the gripped pipe (P);
The rotating part 200,
Rotating member 210 is formed through the inside to rotate by receiving a rotational force;
a fixing member 220 for fixing the rotating member 210 and installed at both ends of the rotating member 210; and
Rotating means 230 for rotating the rotating member 210 by providing a rotational force; including,
The holding part 300,
It is coupled to one end of the rotating member 210 and rotated together with the rotating member 210, and pressurizes and fixes the pipe P to be welded through three or more fixing jaws 313 formed at equiangular intervals therein. It includes a fixed chuck 310;
The fixed chuck 310 is
a chuck body 311 having a plurality of guide grooves 312 formed around it toward a central through hole;
a fixing jaw 313 inserted into the guide groove 312 of the chuck body and moving up and down toward the through hole of the chuck body 311;
a scroll 314 installed inside the chuck body 311 to move the fixed jaw 313 as it rotates;
a first gear 315 meshed with the scroll 314 to rotate the scroll 314; and
A pipe (P) that is bolted to the tip of the chuck body 311 and has an open hole 316 corresponding to the fixing jaw 313 toward the center so as not to interfere with the movement of the fixing jaw 313, and to be welded at the tip. ) to which the circular jig 317 is in close contact; including,
The fixed jaw 313 is,
a body portion 3133 having guide grooves 3132 fitted to the guide rails 3131 of the chuck body 311 formed on both sides thereof;
a second gear 3134 engaged with the scroll 314 on one surface of the body 3133;
a pressing part 3135 provided at one end of the body part 3133 and protruding from the tip of the circular jig 317 to press the outer periphery of the pipe P to be welded; and
It is coupled to one surface of the body portion 3133 and is formed to extend forward, and an auxiliary tub 318 for secondarily pressurizing and fixing the pipe to be welded; includes;
The pipe welding system 10 further includes a foreign material discharge unit 400 for removing welding gas and fumes,
The foreign material discharge unit 400,
a workbench 410 on which the body part 100, the rotating part 200, and the holding part 300 are installed on the upper surface; and
A fume removal device 420 for suctioning and removing welding gas and fumes; includes,
the workbench,
a suction hole 412 formed in the center of the upper plate; and
The body frame 416 located around the suction hole 412 forms a square frame 417 around the suction hole 412, and a suction hopper 422 at a position corresponding to the inside of the square frame 417. A fixing bolt 414 provided to fix the
The fume removal device 420 is,
a suction hopper 422 mounted to a lower portion of the suction hole 412;
an exhaust hose 424 having one end connected to the suction hopper 422; and
and an exhaust fan 426 connected to the other end of the exhaust hose 424 and disposed outside the work space;
The pipe welding system 10 further includes a vibration damping unit 500 for damping the vibration of the pipe P by welding,
The vibration damping unit 500,
Clamp unit 510 for transmitting vibration of the pipe (P) while surrounding the circumference of the pipe (P) to be welded;
The clamp unit 510 includes a first connection unit 511 for connection with the absorption unit 550; and
A fixing member 520 installed on one side of the upper surface of the work bench 410 and provided with a second connection part 512 for connection with the absorption part 550;
The absorption part 550 is,
a third connecting portion 551 for rotatable connection with the second connecting portion 512;
a fourth connecting portion 552 for rotatable connection with the first connecting portion 511; and
Containing;
The third connection part 551 and the fourth connection part 552 face each other and are arranged symmetrically to each other,
The first connecting portion to the fourth connecting portion include a hole, and the first connecting portion to the fourth connecting portion are rotatably connected to each other through the respective holes,
A pipe welding system, characterized in that the rotatable connection through the hole is connected by a fifth connection (553).
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