KR102665083B1 - pipe welding equipment - Google Patents

Abstract

The present invention relates to a pipe welding device. More specifically, the present invention relates to a pipe welding device, and more specifically, a first supply portion that forms a spark at the welding area and a second supply portion that provides filler metal are composed of a single welding portion, and these first and second supply portions have variable positions. It is configured to have a structure that is possible, and the pipe body to be welded is installed to be freely detachable on a single pallet, so that the welding process is carried out in a corresponding position to the welding area, thereby simplifying the process, saving loading space, reducing defects, This relates to an automated pipe welding device that has effects such as increasing welding efficiency.

Description

Pipe welding equipment

The present invention stably fixes a number of pipe bodies to one side of the pallet and allows the welding work to proceed by matching the welded portions of these pipe bodies with welds that can vary in position, thereby reducing process inventory, reducing loading space, and increasing welding efficiency. It relates to a pipe welding device.

Typically, a large number of pipes are used in industrial facilities.

A number of pipes are piped for various purposes, such as transporting fluids and transporting gases, and they are joined by welding to secure an appropriate length to form one long pipe body.

In addition, in order to achieve various purposes such as connecting elbows or forming flanges in addition to connecting pipes to pipes, pipes must be welded so that the filler melts and flows downward, but since the shape of the pipe is cylindrical, this is unavoidable. There is the inconvenience of having to do rotation welding.

Accordingly, a typical rotation welding method involves placing the pipe to be welded on top of a rotating turning jig and welding the pipe while rotating it.

In addition, when constructing a welding device using a robot, it was often difficult to fix the torch of the robot welder, or the angle or position change (variability) toward the welding area was difficult or complicated, and there were many cases where the welding device and materials were provided. By individually installing several devices for welding, such as devices, around the welding area, or by welding assembly parts multiple times in small groups and welding them as a whole, space was limited due to a lack of installation space, and equipment was not automated or position-variable. As a result, there were problems with product defects or defective welds.

Republic of Korea Patent Publication No. 10-1622663 (registered on May 13, 2016)

The present invention was devised to solve the above problems, and the purpose of the present invention is to provide a first supply unit that mixes acetylene (LPG, LNG) and oxygen to form a flame and a second supply unit that provides raw materials. It is composed of welded parts, and the first and second supply parts and the entire welded part have a structure in which the position can be changed, and a plurality of pipe bodies to be welded are also fixed to a single pallet so that the position can be changed through clamps, and The aim is to provide a pipe welding device that forms a pallet part to allow nitrogen to flow to prevent oxidation, and allows an efficient automated welding process to be carried out in correspondence between the weld part and the pallet part.

Other objects and advantages of the present invention will be explained below and will be learned by practice of the present invention. Additionally, the objects and advantages of the present invention can be realized by the means and combinations indicated in the claims.

The present invention is a means to solve the above problems,

A pallet portion (10) on which a plurality of pipe bodies (P) to be welded are mounted and fixed on one surface;

A first supply unit 43 installed adjacent to the pallet unit 10 to mix acetylene and oxygen to form an acetylene flame at the welding area A where the pipe bodies P are connected to each other, and a welding area A welding portion (40) in which a second supply portion (60) providing filler material (61) for welding is integrally formed in (A) to allow welding to proceed to the welding portion (A) of the pipe body (P);

It is characterized by consisting of.

As discussed above, the present invention has the effect of expanding the work range by installing the first supply part that provides a spark in the welding zone and the second supply part that provides the filler metal in a variable position in a single welding zone.

In addition, the present invention has the effect of allowing multiple pipe bodies to be freely fixed and arranged on a single pallet unit.

In addition, the present invention allows the welding process to proceed with the welding part and the pallet part being automatically arranged in correspondence with the robot, thereby reducing existing welding defects and defects, and has the effect of shortening work time and increasing work efficiency due to automation.

1 to 3 are diagrams of an embodiment of a pipe welding device according to the present invention.
Figure 4 is a diagram showing an embodiment of temperature measurement of a welded area according to the present invention.

Before describing the various embodiments of the present invention in detail, it will be appreciated that its application is not limited to the details of the configuration and arrangement of components described in the following detailed description or shown in the drawings. The present invention may be implemented in different embodiments, for example, “front”, “back”, “up”, “down”, “top”, “bottom”. )", "left", "right", "lateral", etc., the expressions and predicates used herein are merely used to simplify the description of the invention and are related to It will be appreciated that this does not simply indicate or imply that a device or element must have a particular orientation. Additionally, terms such as “first,” “second,” and the like are used herein and in the appended claims for purposes of description and are not intended to indicate or imply relative importance or intent.

The present invention has the following features to achieve the above object.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. Prior to this, the terms or words used in this specification and claims should not be construed as limited to their usual or dictionary meanings, and the inventor should appropriately use the concept of terms to explain his or her invention in the best way. It must be interpreted as meaning and concept consistent with the technical idea of the present invention based on the principle of definability.

Accordingly, the embodiments described in this specification and the configurations shown in the drawings are only one of the most preferred embodiments of the present invention and do not represent the entire technical idea of the present invention, so at the time of filing this application, various alternatives are available to replace them. It should be understood that equivalents and variations may exist.

Hereinafter, a pipe welding device according to a preferred embodiment of the present invention will be described with reference to FIGS. 1 to 4.

The pipe welding device according to the present invention includes a pallet portion (10) and a welding portion (40).

The pallet unit 10 is a plate on which a plurality of pipe bodies P to be welded are mounted and fixed on one surface.

This pallet unit 10 is installed on a first robot unit 11 capable of rotation and direction change, and is installed on one side of the first robot unit 11, and can be adjusted forward, backward, left, right, rotated, and angle adjusted. A pallet 12 that can be installed, a plurality of jig parts 20 horizontally protruding from the front of the pallet 12, and installed at each end of the jig parts 20 to fix the pipe body (P). and a clamp part 30 that allows removal.

In addition, in the case of the jig part 20, a main bar 21 that protrudes horizontally forward from the front of the pallet 12, and an extension bar 22 that protrudes further to one side from the end of the main bar 21 A groove is formed at the end of the main bar 21 to form a mounting groove 23 into which the pipe P can be inserted and fixed.

In the case of the clamp part 30, an extension bar 22 extending from the end of the jig part 20 has a connection part 31 horizontally connected toward the front, and one end of the connection part 31 is hinged. A clamp bar 32 is installed to be able to rotate left and right at the end of the jig part 20, and a rotation handle 33 is installed with the clamp bar 32 so that the clamp bar 32 can be rotated. and a fixing pin (34) that protrudes from the end of the clamp bar (32) toward the upper surface of the pipe (P) inserted into the groove of the jig portion (20) and allows the pipe (P) to be pressed and fixed into the groove. It is possible.

In the case of the welding portion 40, a first is installed adjacent to the pallet portion 10 and mixes acetylene and oxygen to form an acetylene flame at the welding portion A where the tubular body P is connected to the tubular body P. The supply part 43 and the second supply part 60, which provides filler metal 61 for welding to the welding area A, are formed integrally, so that welding progresses to the welding area A of the pipe body P. It is a welding device that

Looking at the welding part 40 for this, a second robot part 41 is installed to be able to rotate and change direction, and a second robot part 41 is installed to be able to move up and down and forward and backward on one side of the second robot part 41. The first support 42, the first supply part 43 installed on the first support 42, and the middle part of the second robot part 41 are bent several times toward the pallet part 10 and are horizontal. It is composed of a second support 50 installed and a second supply unit 60 installed at the end of the second support 50.

In the case of the first supply unit 43, a horizontal pipe 44 through which acetylene and oxygen are mixed and transported, and a 'C' shape extending from the end of the horizontal pipe 44, the pipe body has an opening 47. A circular pipe 45 is formed along the inner periphery of the circular pipe 45, which passes through the circular pipe 45 and is positioned at the center or vertically inserted into the center from the upper and lower sides. ) It consists of a flame nozzle unit 46 that simultaneously sprays a plurality of flames toward the welding portion A of the pipe body P located in the center of the pipe body P and around the outer periphery of the welding portion A.

In particular, the second support 50 includes a fixing bar 51, one end of which is fixed to the side of the second robot unit 41, the middle end of which is bent multiple times, and the other end of which is disposed horizontally toward the pallet unit 10. , an auxiliary bar 52 that is rotatably and horizontally connected to the end of the fixed bar 51, and is installed on the outer periphery of the auxiliary bar 52, and has a hexahedral shape to form a flat installation surface 53 on the outer peripheral surface. It is formed so that the second supply part 60 can be installed and fixed on one of the installation surfaces 53, and is rotatably installed on the outer periphery of the auxiliary bar 52 on the auxiliary bar 52, It is composed of an installation part 54 that allows the position of the second supply part 60 fixed to the installation surface 53 to be changed.

In the present invention, the second supply unit 60 is installed to be rotatable 360 degrees horizontally on the installation surface 53 formed at the end of the second support 50, so that the angle can be adjusted, and an air cylinder ( 62), the filler metal 61 is installed so that it can move forward and backward toward the welding area (A).

In addition, the present invention further includes a temperature measurement unit 70 and a control unit 71. To explain this,

The temperature measuring unit 70 is installed adjacent to the welding area (A), and a thermal imaging camera is used to measure the temperature of the welding area (A).

Accordingly, when the control unit 71 installed in the temperature measuring unit 70 measures the temperature through the temperature measuring unit 70, the measured temperature gradually increases from 0 degrees and falls within the preset welding temperature range. After rising to the set temperature, the desired average is automatically adjusted by automatically adjusting the ratio of acetylene and oxygen in the welded portion 40 until it falls within the average section where the temperature is maintained at the preset temperature without repeating rises and falls in the elevated state. When the temperature is reached, filler metal 61 is also provided to the welding area A to allow welding to proceed.

Looking at the working form of the pipe welding device described above, in the case of the pallet part 10 where the object to be welded is fixed on one side, the work object is on a conveyor where a plurality of pallet parts 10 are transported in one direction. After the tube body (P) is pre-fixed to the jig part 20 of the pallet unit 10, the first robot unit 11, which is installed to be able to rotate and change direction, moves the work object to which the tube body (P) is fixed. The rear of the pallet unit 10 is held and erected vertically, and the pallet unit 10 is placed in a vertical position to face the welded portion 40 to allow the welding process to proceed.

In addition, depending on the user's embodiment, the pallet unit 10 or the pipe body P installed on the pallet unit 10 is installed to communicate with the pipe body P of the pallet unit 10, thereby reducing the heat generated during welding. A cooling device 80 is provided to move coolant into the pipe body (P) and then discharge it to the outside to cool (if the heat generated during the welding process is not cooled, product defects may occur). It can be done.

In addition, a leak test device (not shown) that can perform a leak test on the pipe body (P) for which the welding process has been completed is installed adjacent to the pipe welding device, so that the leak test process can proceed continuously after the welding process is completed. It is.

As described above, although the present invention has been described with limited examples and drawings, the present invention is not limited thereto, and the technical idea of the present invention and the following will be understood by those skilled in the art to which the present invention pertains. Of course, various modifications and changes are possible within the scope of equivalence of the patent claims to be described.

10: Pallet unit 11: First robot unit
12: Pallet 20: Jig part
21: main bar 22: extension bar
23: Mounting groove 30: Clamp part
31: connection bar 32: clamp bar
33: Rotating handle 34: Fixing pin
40: welding part 41: second robot part
42: first support 43: first supply section
44: horizontal pipe 45: arcuate pipe
46: Flame nozzle part 47: Opening part
50: second support 51: fixing bar
52: auxiliary bar 53: installation surface
54: Installation part 60: Second supply part
61: Filler metal 62: Air cylinder
70: Temperature measurement unit 71: Control unit
A: Connection part P: Pipe

Claims (10)

A pallet portion (10) on which a plurality of pipe bodies (P) to be welded are mounted and fixed on one surface;
A first supply unit 43 installed adjacent to the pallet unit 10 to mix acetylene and oxygen to form an acetylene flame at the welding area A where the pipe bodies P are connected to each other, and a welding area A welding portion (40) in which a second supply portion (60) providing filler material (61) for welding is integrally formed in (A) to allow welding to proceed to the welding portion (A) of the pipe body (P); It consists of
The pallet unit 10 is
On a transfer conveyor where a plurality of pallet units 10 are transferred in one direction, a tube body P is fixed to the jig part 20 of the work object pallet unit 10 and then installed to enable rotation and change of direction. 1The robot unit (11) grabs the rear of the pallet unit (10) and stands it vertically, so that the welding area (A) is positioned to face the welding area (40),
The pallet unit 10 is
A first robot unit (11) installed to enable rotation and direction change;
A pallet 12 installed on one side of the first robot unit 11 and capable of adjusting the front, rear, left, right, rotation, and angle;
A plurality of jig parts 20 horizontally protruding from the front of the pallet 12;
A clamp part (30) installed at each end of the jig part (20) to enable fixing and removal of the pipe body (P); It consists of
The jig part 20 is
A main bar (21) that protrudes horizontally forward from the front of the pallet (12);
An extension bar (22) that protrudes further to one side from the end of the main bar (21);
It consists of a mounting groove (23) formed at the end of the main bar (21) so that the pipe (P) can be inserted and fixed,
The first supply unit 43 is
A horizontal pipe (44) through which acetylene and oxygen are mixed and transported;
An arcuate tube ( 45);
A plurality of them are formed along the inner periphery of the circular pipe 45, toward the welded portion A of the pipe body P located in the center of the circular pipe 45, and toward the outer periphery of the welded portion A. A flame nozzle unit (46) that allows multiple flames to be ejected simultaneously; It consists of
A cooling device (80) installed to communicate with the pipe body (P) of the pallet unit 10, moves the coolant into the pipe body (P) to cool the heat generated during welding, and then discharges it to the outside. ); A pipe welding device characterized in that it is provided.
According to clause 1,
The clamp part 30 is
A connecting portion 31 horizontally connected toward the front in the extension bar 22 extending from the end of the jig portion 20;
A clamp bar 32, one end of which is hinged to the connection portion 31 and rotatable left and right at the end of the jig portion 20;
A rotating handle (33) installed with the clamp bar (32) so as to rotate the clamp bar (32);
A fixing pin (34) protrudes from the end of the clamp bar (32) toward the upper surface of the pipe (P) inserted into the groove of the jig portion (20) and allows the pipe (P) to be pressed and fixed into the groove;
A pipe welding device comprising:
According to clause 1,
The welding portion 40 is
A second robot unit (41) installed to enable rotation and direction change;
A first support 42 installed on one side of the second robot unit 41 to be movable up, down, forward, and backward;
A first supply unit (43) installed on the first support (42);
a second support 50 that is bent a number of times at the middle end of the second robot unit 41 toward the pallet unit 10 and is installed horizontally;
a second supply unit 60 installed at the end of the second support 50;
A pipe welding device comprising:
According to clause 3,
The second support 50 is
A fixing bar 51, one end of which is fixed to the side of the second robot unit 41, the middle end of which is bent a number of times, and the other end of which is disposed horizontally toward the pallet unit 10;
An auxiliary bar (52) rotatably connected horizontally to the end of the fixed bar (51);
It is installed on the outer periphery of the auxiliary bar 52 and is formed in a hexahedral shape to form a flat installation surface 53 on the outer peripheral surface, so that the second supply part 60 is installed and fixed on one of the installation surfaces 53. An installation part that is rotatably installed on the outer periphery of the auxiliary bar 52 to enable the position of the second supply part 60 fixed to the installation surface 53 to be changed. (54);
A pipe welding device comprising:
According to clause 3,
The second supply unit 60 is
It is installed to be rotatable 360 degrees on the installation surface 53 formed at the end of the second support 50, so that the angle can be adjusted, and the filler material 61 is positioned at the welding area A by the air cylinder 62. A pipe welding device characterized in that it is installed so that it can move forward and backward.
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