KR102595177B1 - Jig for installing guide ring of automatic welding carriage and method of using the same - Google Patents

Abstract

A jig for installing a guide ring of an automatic welding carriage is disclosed. The disclosed jig for installing a guide ring of an automatic welding carriage includes a jig body, a distance adjustment block horizontally movably coupled to the jig body, a gap adjustment block horizontally movably coupled to the jig body, and a center gap block coupled to the jig body. and a magnetic block movably coupled to the jig body.

Description

Jig for installing guide ring of automatic welding carriage and method of using the same {Jig for installing guide ring of automatic welding carriage and method of using the same}

A jig for installing a guide ring of an automatic welding carriage and a method of using the same are disclosed. More specifically, a jig for installing a guide ring of an automatic welding carriage configured to easily, accurately, and quickly perform the guide ring installation work of an automatic welding carriage, and a method of using the same are disclosed.

In order to form a piping line using large-diameter piping, a plurality of piping must be butt-welded and connected to each other. In order to automatically weld and connect a plurality of piping to each other, an automatic welding carriage is typically used.

In order to perform circumferential butt welding of a pipe line using an automatic welding carriage, a guide ring must be installed on the outer peripheral surface of the pipe line, and then an automatic welding carriage must be installed on the installed guide ring.

The automatic welding carriage installed on the guide ring rotates in the circumferential direction of the pipe line along the guide ring installed on the outer circumference of the pipe line and performs welding on the welding area.

Previously, installing a guide ring on the outer circumference of a pipe line involved measuring the fastening position on the pipe and marking it for identification (S1), assembling a guide ring divided into two or four parts (S2), and measuring the pipe roundness. Step of adjusting the gap between guide ring parts according to the step (S3), step of repeatedly checking the gap between the outer diameter of the pipe and the inner diameter of the guide ring and tightening it with a fixing pin (S4), and tightening the pipe with a rubber mallet, etc. It includes a step (S5) of readjusting the fastening position, and the steps (S3 and S4) must be manually and repeatedly performed until the optimal installation position is determined. Therefore, previously, installing a guide ring took a long time, ranging from 15 to 150 minutes depending on the pipe diameter and roundness.

Specifically, the existing guide ring installation method involves marking the outer circumference of the pipe with a name pen, etc. in order to install the guide ring at a distance of 210 mm from the welding position, and manually adjusting the gap between guide ring parts according to the roundness of the pipe using a tape measure, etc. The height of the guide ring in the circumferential direction of the pipe is measured manually using a ruler, and the fixing pin is tightened repeatedly whenever the position setting is changed. If the lower adjustment is performed after the upper adjustment, the upper There were problems such as unstable fixation due to changes in position, increased number of repetitive tasks due to operator measurement errors, and individual installation time deviations depending on individual skills.

One embodiment of the present invention provides a jig for installing a guide ring of an automatic welding carriage configured to easily, accurately, and quickly perform the guide ring installation work of an automatic welding carriage.

Another embodiment of the present invention provides a method of using a jig for installing a guide ring of the automatic welding carriage.

One aspect of the present invention is,

jig body;

A distance adjustment block horizontally movably coupled to the jig body;

A gap adjustment block horizontally movably coupled to the jig body;

A center gap block coupled to the jig body; and

A jig for installing a guide ring of an automatic welding carriage including a magnetic block movably coupled to the jig body is provided.

The jig body may include a groove for fixing a distance adjustment block, a groove for fixing a magnetic block, and a groove for fixing a gap adjustment block.

The distance adjustment block may include a distance adjustment block base, a hinge portion, a pair of wings, and a pair of stoppers.

The pair of wings and the pair of stoppers may be configured to rotate downward with respect to the distance adjustment block base via the hinge portion.

The hinge unit may include a spring attached hinge.

The gap adjustment block includes a gap adjustment block base and a gap adjustment block base fixing knob, and the gap adjustment block base may include an upper surface configured in multi-step steps.

The jig for installing the guide ring of the automatic welding carriage may further include an auxiliary gap adjustment block configured to be mounted on the upper surface of the gap adjustment block base.

The auxiliary gap adjustment block may include a magnet mounted at the bottom.

The center gap block may include a center gap block base and a center gap block base fixing knob, and the center gap block base may include a wedge-shaped end and a round end positioned opposite to each other.

The magnetic block may include a magnetic base, a magnetic base fixing bracket, a magnetic base operation knob, and a magnetic base fixing knob.

The magnetic base may include a round bottom.

Another aspect of the present invention is,

As a method of using the jig for installing the guide ring of the automatic welding carriage,

Step of fitting up two pipes (S10);

Positioning the guide ring installation jig of the automatic welding carriage on the outer peripheral surface of one of the two pipes (S20);

Inserting one end of the center gap block base into the gap between the two pipes (S30);

Fixing the center gap block base to the jig body using a center gap block base fixing knob (S40);

Operating the magnetic base using the magnetic base operation knob (S50);

Fixing the magnetic base on the outer peripheral surface of the pipe using a magnetic base fixing knob (S60); and

For guide ring installation of an automatic welding carriage, including the step of adjusting the horizontal position of the gap adjustment block base to match a predetermined gap and then fixing the gap adjustment block base to the jig body using a gap adjustment block base fixing knob (S70). Provides instructions for using the jig.

In the step (S30), if the two pipes are not welded, the wedge-shaped end of the center gap block base is inserted into the gap between the two pipes, and if the two pipes are tack-welded, The round end of the center gap block base may be inserted into the gap between the two pipes.

The step (S70) can be performed with an auxiliary gap adjustment block mounted on the gap adjustment block base.

The method of using the jig for installing the guide ring of the automatic welding carriage may further include the step of temporarily fixing the guide ring of the automatic welding carriage on the outer peripheral surface of the pipe (S80) after the step (S70).

The method of using the jig for installing the guide ring of the automatic welding carriage includes, after the step (S80), formally fixing the guide ring of the automatic welding carriage on the outer peripheral surface of the pipe (S90) and the step (S90) of formally fixing the guide ring of the automatic welding carriage on the outer peripheral surface of the pipe. It may further include removing the jig for installing the guide ring of the automatic welding carriage (S100).

The jig for installing a guide ring of an automatic welding carriage according to an embodiment of the present invention has the effect of shortening the installation time of the guide ring of an automatic welding carriage.

Figure 1 is a perspective view of a jig for installing a guide ring of an automatic welding carriage according to an embodiment of the present invention, viewed from a first direction, and is a diagram showing a method of setting the installation position of the guide ring during initial welding.
FIG. 2 is an enlarged view of the jig for installing the guide ring of the automatic welding carriage in FIG. 1.
Figure 3 is a perspective view of a jig for installing a guide ring of an automatic welding carriage according to an embodiment of the present invention as seen from a second direction, and is a diagram showing a method of setting the installation position of the guide ring during initial welding.
Figure 4 is a perspective view of a jig for installing a guide ring of an automatic welding carriage according to an embodiment of the present invention as seen from a fourth direction, and is a diagram showing a method of setting the installation position of the guide ring during the first welding.
Figure 5 is an enlarged view of the jig for installing the guide ring of the automatic welding carriage in Figure 4.
Figure 6 is a front view of a jig for installing a guide ring of an automatic welding carriage according to an embodiment of the present invention as seen from the fifth direction, and is a diagram showing a method of setting the installation position of the guide ring during the first welding.
Figure 7 is a plan view of a jig for installing a guide ring of an automatic welding carriage according to an embodiment of the present invention as seen from a sixth direction, and is a diagram showing a method of setting the installation position of the guide ring during the first welding.
Figure 8 is a side view of a jig for installing a guide ring of an automatic welding carriage according to an embodiment of the present invention, viewed from a seventh direction, and is a diagram showing a method of setting the installation position of the guide ring during the first welding.
Figure 9 is a diagram for explaining the structure of the gap adjustment block and the corresponding jig body and the method of using the gap adjustment block.
Figure 10 is a perspective view of a jig for installing a guide ring of an automatic welding carriage according to an embodiment of the present invention as seen from a first direction, and is a diagram showing a method of setting the installation position of the guide ring after tack welding.
Figure 11 is a side view of a jig for installing a guide ring of an automatic welding carriage according to an embodiment of the present invention, viewed from a seventh direction, and is a diagram showing a method of setting the installation position of the guide ring during the first welding.
Figure 12 is a side view of a jig for installing a guide ring of an automatic welding carriage according to an embodiment of the present invention, viewed from a seventh direction, and is a diagram showing a method of setting the installation position of the guide ring after tack welding.

Hereinafter, a jig for installing a guide ring of an automatic welding carriage according to an embodiment of the present invention will be described in detail with reference to the drawings.

In this specification, “distance adjustment” means adjusting the distance from the welding position of two pipes to be butt-welded to the guide ring of the automatic welding carriage.

Also, in this specification, “gap adjustment” means gap adjustment between the outer peripheral surface of the pipe and the lower portion (or inner surface) of the guide ring of the automatic welding carriage.

Also, in this specification, “center gap” refers to the gap between two pipes that are butt-welded to each other.

Additionally, in this specification, “upper” refers to a portion located relatively in the reverse direction of gravity, and “lower” refers to a portion relatively located in the forward direction of gravity.

Figure 1 is a perspective view of the jig 100 for installing a guide ring of an automatic welding carriage according to an embodiment of the present invention as seen from a first direction, showing the installation position of the guide ring (GR) during the first welding, and Figure 2 is a diagram showing the installation position of the guide ring (GR) in the first direction. 1 is an enlarged view of the jig 100 for installing a guide ring of an automatic welding carriage, and FIG. 3 is a perspective view of the jig 100 for installing a guide ring of an automatic welding carriage according to an embodiment of the present invention as seen from a second direction. This is a diagram showing the installation position of the guide ring (GR) during the first welding, and Figure 4 is a perspective view of the jig 100 for installing the guide ring of an automatic welding carriage according to an embodiment of the present invention as seen from the fourth direction, during the first welding. It is a diagram showing the installation position of the guide ring (GR), and FIG. 5 is an enlarged view of the jig 100 for installing the guide ring of the automatic welding carriage in FIG. 4, and FIG. 6 is an automatic welding carriage according to an embodiment of the present invention. This is a front view of the jig 100 for installing the guide ring of the welding carriage as seen from the fifth direction, showing the installation position of the guide ring (GR) during the first welding, and Figure 7 is a guide of the automatic welding carriage according to an embodiment of the present invention. It is a plan view of the ring installation jig 100 as seen from the sixth direction, showing the installation position of the guide ring (GR) at the time of initial welding, and Figure 8 is a jig for installing the guide ring of the automatic welding carriage according to an embodiment of the present invention ( This is a side view viewed from the 7th direction (100), showing the installation position of the guide ring (GR) during the first welding. 1 to 8, the first to eighth directions may be different directions.

1 to 8, a jig 100 for installing a guide ring of an automatic welding carriage according to an embodiment of the present invention (hereinafter simply referred to as “jig 100 for installing a guide ring” or “jig 100”) ) includes a jig body 110, a distance adjustment block 120, a gap adjustment block 130, a center gap block 140, and a magnetic block 150.

The automatic welding carriage (not shown) may include a welding head (not shown).

In addition, the automatic welding carriage is mounted on the guide ring (GR) (hereinafter simply referred to as “guide ring (GR)”) of the automatic welding carriage and butt-welds two pipes while moving along the guide ring (GR), thereby welding the pipe. It serves to connect pipes to each other.

The guide ring installation jig 100 is manufactured so that its total length corresponds to a predetermined distance from the welding position to the installation position of the guide ring (GR), and the guide ring (GR) is installed using the welding position as the installation starting point. When attached in the longitudinal direction of the pipe (PP), the installation position of the guide ring (GR) can be automatically set on the outer peripheral surface of the pipe (PP).

For example, the guide ring installation jig 100 may be configured such that the distance from the center gap base 141 to the stopper 124 is a predetermined length (eg, 210 mm).

The jig body 110 may include a groove (gr1) for fixing the distance adjustment block, a groove (gr2) for fixing the magnetic block, and a groove (gr3) for fixing the gap adjustment block.

Referring to Figures 2 and 5, the distance adjustment block fixing groove (gr1) and the magnetic block fixing groove (gr2) may communicate with each other. That is, one elongated groove is formed, part of which can be used as a groove (gr1) for fixing the distance adjustment block, and the remaining part can be used as a groove (gr1) for fixing the magnetic block. However, the present invention is not limited to this, and the distance adjustment block fixing groove (gr1) and the magnetic block fixing groove (gr2) may not be in communication with each other but may be formed separately.

As described above, the distance adjustment block 120 serves to automatically set the installation position of the guide ring GR on the outer peripheral surface of the pipe PP. That is, when installing the guide ring installation jig 100 on the outer peripheral surface of the pipe (PP) and fixing the installation position, the distance adjustment block even if the guide ring installation jig 100 is installed on the side or bottom of the pipe (PP) (120) can change its own radius of curvature according to the pipe diameter of the pipe (PP) and adjust the angle and height of the pipe adhesion portion (i.e., stopper 124) to suit the radius of curvature of the outer peripheral surface of the pipe (PP). .

Specifically, the distance adjustment block 120 may include a distance adjustment block base 121, a hinge portion 122, a pair of wings 123, and a pair of stoppers 124.

Referring to Figures 2 and 5, a plurality of screw grooves are formed in the distance adjustment block base 121, so that the screw sequentially penetrates each of the screw grooves and the distance adjustment block fixing groove (gr1) to the jig body 110. By being coupled to the distance adjustment block base 121 can be screwed to the jig body 110. In addition, since the distance adjustment block base 121 can move horizontally along the distance adjustment block fixing groove (gr1), it can be positioned and fixed at a desired point. In this way, since the distance adjustment block 120 has a distance adjustment function, the cut surface of the pipe PP is not cut in a straight line, so the distance from the welding position to the installation position of the guide ring GR is a predetermined distance (e.g. , 210 mm), the guide ring GR can be installed at a predetermined distance from the welding position by horizontally moving the distance adjustment block 120.

Meanwhile, after temporarily fixing the guide ring (GR) on the outer peripheral surface of the pipe (PP), check the height of all sections of the guide ring (GR) and, if deemed appropriate, attach a fixing pin (not shown) at the same time. By tightening, the guide ring (GR) can be quickly installed and the exact installation position and accurate separation distance of the guide ring (GR) can be secured, eliminating existing repetitive work.

The hinge portion 122 serves to rotatably couple the pair of wings 123 to the distance adjustment block base 121. Specifically, the hinge portion 122 was designed in consideration of the fact that the curvature varies depending on the pipe diameter of the pipe (PP). Even if the pipe diameter of the pipe (PP) changes, the distance adjustment block 120 is always positioned on the outer surface of the pipe (PP). It plays a role in adhering closely to the

The pair of stoppers 124 may be configured to be coupled one by one to each of the pair of wings 123 so that one side can be in contact with the guide ring (GR) and the lower part can be in contact with the pipe (PP).

Additionally, the pair of stoppers 124 may each be configured to match the height of the guide ring GR.

Additionally, each of the pair of stoppers 124 may be equipped with a magnet (not shown) on its lower surface in contact with the pipe PP so that it is always in close contact with the pipe PP.

As a result, the pair of wings 123 and the pair of stoppers 124 move downward (i.e., in the direction of the outer peripheral surface of the pipe PP) with respect to the distance adjustment block base 121 via the hinge portion 122. It may be configured to be rotatable.

Additionally, the hinge portion 122 may include a spring-loaded hinge. Accordingly, even if the guide ring installation jig 100 is located at the lower part of the pipe PP, the distance adjustment block 120 of the jig 100 (specifically, a pair of wings 123 and a pair of stoppers 124) This gravity prevents it from sagging downward.

Additionally, the hinge portion 122 may include at least one pair (eg, two pairs) of hinges.

The gap adjustment block 130 serves to easily and quickly set the gap (i.e. gap) between the outer peripheral surface of the pipe (PP) and the inner surface of the guide ring (GR) and adjusts the guide ring (GR) to the outer peripheral surface of the pipe (PP). It plays a role in allowing temporary fixation.

Specifically, the gap adjustment block 130 may include a gap adjustment block base 131 and a gap adjustment block base fixing knob 132. Specifically, a hole h1 is formed in the gap adjustment block base 131, and the gap adjustment block base fixing knob 132 penetrates the gap adjustment block fixing groove gr3 so as to protrude out of the hole h1. Thus, it can be screwed to the jig body 110. Accordingly, the gap adjustment block base fixing knob 132 is loosened to adjust the horizontal position of the gap adjustment block base 131, and then the gap adjustment block base fixing knob 132 is locked to adjust the horizontal position of the gap adjustment block base 131. can be fixed.

FIG. 9 is a diagram for explaining the structure of the gap adjustment block 130 and the corresponding jig body 110 and a method of using the gap adjustment block 130.

Referring to FIG. 9, a plurality of screw grooves into which the gap adjustment block base fixing knob 132 can be fastened may be formed in the jig body 110. Therefore, the gap adjustment block 130 is moved horizontally to the left and right and the gap adjustment block base fixing knob 132 is fastened to one of the plurality of screw grooves formed in the jig body 110 to adjust the horizontal position of the gap adjustment block 130. can be fixed.

The gap adjustment block base 131 may include an upper surface configured in multi-step steps. Specifically, the gap adjustment block base 131 can adjust the separation distance (i.e., gap) between the outer peripheral surface of the pipe (PP) and the inner surface of the guide ring (GR) in predetermined length units (e.g., 1 mm units). It may include an upper surface composed of multi-step steps.

Also, referring to FIG. 8, the guide ring installation jig 100 may further include an auxiliary gap adjustment block 133 configured to be mounted on the upper surface of the gap adjustment block base 131.

The auxiliary gap adjustment block 133 is used together with the gap adjustment block 130 to adjust the gap (i.e., the separation distance between the outer peripheral surface of the pipe (PP) and the inner surface of the guide ring (GR)) that is difficult to adjust with the gap adjustment block 130 alone. Plays a coordinating role. For example, the gap adjustment block 130 can be suitably used to adjust the gap of piping (PP) produced in 100 mm increments such as 300A, 400A, etc., but it can be used for piping (PP) produced in 50 mm increments such as 350A, 450A, and 550A. It's difficult to use. However, if a 20 mm thick auxiliary gap adjustment block 133 is placed on the upper surface of the gap adjustment block 130, gap adjustment of pipes (PP) produced in 50 mm units such as 350A, 450A, and 550A becomes possible.

Additionally, the auxiliary gap adjustment block 133 may include a magnet (not shown) mounted at the bottom. Therefore, the auxiliary gap adjustment block 133 can be easily attached and detached from the upper surface of the gap adjustment block 130, and even if the guide ring installation jig 100 is installed on the side or bottom of the pipe (PP), the auxiliary gap adjustment block 133 can be easily attached and detached from the upper surface of the gap adjustment block 130. (133) can be prevented from falling to the bottom due to gravity.

The center gap block 140 serves to hold the reference position in automatically setting the installation position of the guide ring (GR) based on the welding position.

Specifically, the center gap block 140 may include a center gap block base 141 and a center gap block base fixing knob 142. Specifically, a vertically extending hole (h2) is formed in the center gap block base 141, and the center gap block base fixing knob 142 is attached to the jig body 110 to protrude out of the hole (h2). Can be screwed together. Accordingly, the center gap block base fixing knob 142 is loosened to adjust the vertical position of the center gap block base 141 according to the size of the gap at the welding position (unwelded state) or the depth of the groove (tack welded state). , Afterwards, the vertical position of the center gap block base 141 can be fixed by locking the center gap block base fixing knob 142.

Additionally, the center gap block base 141 may be configured to be thicker than the gap between the pipes to prevent it from passing through the gap between the pipes.

Additionally, the center gap block base 141 may include a wedge-shaped end 141a and a round end 141b located on opposite sides of each other.

The wedge-shaped end 141a is located at the exact center of the welding position of the two pipes PP butt-welded to each other when the welding position has not yet been welded. It can be used to adjust the installation position of the guide ring GR. .

When the welding positions of two pipes (PP) butt-welded to each other are tack welded (i.e., first layer welded), the round end portion 141b is located at the exact center of the welding positions to adjust the installation position of the guide ring GR. It can be used to:

The magnetic block 150 may include a magnetic base 151, a magnetic base fixing bracket 152, a magnetic base operation knob 153, and a magnetic base fixing knob 154.

The magnetic base 151 may be configured to be attached to the outer peripheral surface of the pipe PP by magnetic force. Accordingly, the magnetic base 151 can prevent the guide ring installation jig 100 from falling downward due to gravity due to the permanent magnet and magnetic functions even if the guide ring installation jig 100 is installed on the side or bottom of the pipe PP.

One end of the magnetic base fixing bracket 152 is coupled to the magnetic base 151, and the other end is screwed to the jig body 110 through a magnetic block fixing groove (gr2), resulting in the magnetic base 151 It plays the role of coupling to the jig body 110.

The magnetic base operation knob 153 serves to generate magnetic force or annihilate magnetic force in the magnetic base 151. For example, when the magnetic base operation knob 153 is turned clockwise, magnetic force is generated in the magnetic base 151 so that the magnetic base 151 is attached to the pipe (PP), and the magnetic base operation knob 153 is turned counterclockwise. When turned in this direction, the magnetic force in the magnetic base 151 disappears and the magnetic base 151 can be detached from the pipe PP.

Referring to FIG. 3, an arc-shaped hole (h3) is formed in the magnetic base fixing bracket 152, and the magnetic base fixing knob 154 is screwed to the magnetic base 151 so as to protrude out of the hole (h3). It can be. Specifically, since the curvature varies depending on the pipe diameter of the pipe (PP), loosen the magnetic base fixing knob 154 to adjust the height and angle of the magnetic base 151, and then lock the magnetic base fixing knob 154 to secure the magnetic base ( 151) height and angle can be fixed.

In addition, a screw groove is formed in the magnetic base fixing bracket 152, so that the screw sequentially penetrates the screw groove and the magnetic block fixing groove (gr2) and is coupled to the jig body 110, so that the magnetic block 150 is attached to the jig body. It can be screwed to (110). In addition, since the magnetic base fixing bracket 152 can move horizontally along the magnetic block fixing groove (gr2), it can be positioned and fixed at a desired point. Accordingly, the installation position of the magnetic base 151 can be easily changed along the longitudinal direction of the jig body 110 to suit its center of gravity.

Additionally, the magnetic base 151 may include a round bottom portion 151a. Accordingly, the magnetic base 151 can be placed in close contact with the outer peripheral surface of the pipe PP having a certain curvature.

Figure 10 is a perspective view of the jig 100 for installing a guide ring of an automatic welding carriage according to an embodiment of the present invention as seen from the first direction as shown in Figures 1 and 2, and is a view showing the installation position of the guide ring (GR) after tack welding. am.

The difference between FIG. 10 and FIG. 2 is that the center gap block base 141 is rotated 180 degrees so that the round end 141b is directed downward and the wedge-shaped end 141a is directed upward.

Three to four jig 100 for installing a guide ring of an automatic welding carriage according to an embodiment of the present invention having the above configuration are installed on the outer peripheral surface of the pipe (PP) to determine the distance between the welding position and the guide ring (GR) , there is an advantage in that stable welding is possible because the gap between the outer peripheral surface of the pipe (PP) and the inner surface of the guide ring (GR) can be easily adjusted.

For example, three jig 100 for installing the guide ring of an automatic welding carriage can be installed at equal intervals in pipes under 1200A, and four pieces can be installed at equal intervals in pipes exceeding 1200A depending on the pipe diameter of the pipe (PP). there is. Specifically, depending on the pipe diameter of the pipe (PP), pipes under 1200A can be operated by installing three jigs (100), one at 12 o'clock, one at 4 o'clock, and one at 8 o'clock, and four jigs 100 can be installed in pipes over 1200A. The jig 100 can be installed and operated one by one at 12 o'clock, 3 o'clock, 6 o'clock, and 9 o'clock.

Hereinafter, a method of using the jig 100 for installing a guide ring of an automatic welding carriage according to an embodiment of the present invention will be described in detail with reference to the drawings.

Figure 11 is a side view of the jig 100 for installing a guide ring of an automatic welding carriage according to an embodiment of the present invention as seen from the seventh direction, showing the installation position of the guide ring (GR) at the time of initial welding, and Figure 12 is a view showing the installation position of the guide ring (GR) at the time of initial welding. A side view of the jig 100 for installing a guide ring of an automatic welding carriage according to an embodiment of the invention as seen from the seventh direction as shown in FIG. 11 is a diagram showing the installation position of the guide ring (GR) after tack welding. In FIG. 12, reference numeral “TW” refers to a tack-welded portion.

Referring to FIGS. 11 and 12 along with FIGS. 1 to 10, the method of using the jig 100 for installing a guide ring of an automatic welding carriage according to an embodiment of the present invention includes the following steps:

(1) Step of fitting up two pipes (PP1, PP2) (S10),

(2) positioning the guide ring installation jig 100 on the outer peripheral surface of one of the two pipes PP1 and PP2 (PP2) (S20),

(3) inserting one end (141a or 141b) of the center gap block base 141 into the gap between the two pipes (PP1 and PP2) (S30),

(4) fixing the center gap block base 141 to the jig body 110 using the center gap block base fixing knob 142 (S40),

(5) operating the magnetic base 151 using the magnetic base operation knob 153 (S50),

(6) fixing the magnetic base 151 on the outer peripheral surface of the pipe PP2 using the magnetic base fixing knob 154 (S60), and

(7) Adjust the horizontal position of the gap adjustment block base 131 to match the predetermined gap (i.e., the gap between the outer peripheral surface of the pipe PP2 and the lower part of the guide ring (GR) of the automatic welding carriage) and then adjust the gap adjustment block. Step of fixing the gap adjustment block base 131 to the jig body 110 using the base fixing knob 132 (S70).

In step S30, when the two pipes (PP1, PP2) are not welded to each other, the wedge-shaped end (141a) of the center block base 141 is in the gap between the two pipes (PP1, PP2). When the two pipes (PP1, PP2) are tack-welded to each other, the round end (141b) of the center block base 141 is inserted into the gap between the two pipes (PP1, PP2). You can.

The step (S70) can be performed with the auxiliary gap adjustment block 133 mounted on the gap adjustment block base 131. In this way, the gap between the pipe PP2 and the guide ring GR can be adjusted using only the gap adjustment block 130 or using the auxiliary gap adjustment block 133 together with the gap adjustment block 130.

In addition, the method of using the guide ring installation jig 100 may further include the following steps after the step (S70):

(8) temporarily fixing the guide ring (GR) on the outer peripheral surface of the pipe (PP2) (S80),

(9) formally fixing the guide ring (GR) on the outer peripheral surface of the pipe (PP2) (S90), and

(10) Removing the guide ring installation jig 100 from the outer peripheral surface of the pipe PP2 (S100).

After the above step (S100), an automatic welding carriage (not shown) is mounted on the guide ring (GR) to proceed with welding, and when welding is completed, the guide ring (GR) can be removed from the outer peripheral surface of the pipe (PP2). .

Below, we will explain in detail how to use the gap adjustment block when installing the actual guide ring based on the piping standard table and the guide ring standard of the automatic welding carriage.

(1) When fastening the guide ring based on the 1200A piping standard, the outer diameter of the 1200A piping is 1219mm (48”).

(2) The inner diameter of the guide ring for 1200A piping is 1232mm (48.5”).

(3) The gap between the inner surface of the pipe circumferential guide ring and the outer surface of the pipe is 6.5mm (=(1232-1219)/2).

(4) Assuming that the pipe is a perfect circle, the gap adjustment block of the guide ring installation jig must be used with a thickness of 6.5mm.

(5) First, set the gap adjustment block of the guide ring installation jig installed at 12 o'clock to 6mm and place the guide ring on the gap adjustment block.

(6) Set the gap adjustment block of the guide ring installation jig installed at the 8 o'clock direction and the gap adjustment block of the guide ring installation jig installed at the 4 o'clock direction to 6 mm, and place the guide ring on the gap adjustment block.

(7) Depending on the condition of the pipe, check whether the guide ring is eccentric in the circumferential direction of the pipe.

(8) Adjust the gap adjustment block of the guide ring installation jig in an eccentric position so that the circumferential gap is consistent in all circumferential directions.

(9) If you think the gap at 8 o'clock is large, adjust the gap adjustment block of the guide ring installation jig at 8 o'clock from 6mm to 5mm, and adjust the gap adjustment block of the guide ring installation jig at 4 o'clock on the opposite side from 7mm. The pipe is located at the center of the circumferential direction.

The present invention has been described with reference to the drawings, but these are merely illustrative examples, and those skilled in the art will understand that various modifications and equivalent implementations can be made therefrom. Therefore, the true scope of technical protection of the present invention should be determined by the technical spirit of the attached patent claims.

100: Jig for installing guide ring of automatic welding carriage
110: Jig body 120: Distance adjustment block
121, 131, 141: Base 122: Hinge portion
123: Connection 124: Stopper
130: Gap adjustment block 132, 142, 154: Fixed knob
133: Auxiliary gap adjustment block 140: Center gap block
141a: wedge-shaped end 141b: round end
150: magnetic block 151: magnetic base
151a: Round bottom 152: Magnetic base fixing bracket
153: Magnetic base operation knob gr1, gr2 gr3: home
h1, h2, h3: hole PP: pipe
GR: Guide ring

Claims (16)

A jig for installing a guide ring of an automatic welding carriage, wherein the automatic welding carriage is mounted on the guide ring and moves along the guide ring to butt-weld two pipes to connect the pipes to each other. The jig is manufactured so that the total length corresponds to the predetermined distance from the welding position to the installation position of the guide ring. When the guide ring is attached in the longitudinal direction of the pipe using the welding position as the installation starting point, it is installed on the outer peripheral surface of the pipe. The installation position of the guide ring is set,
jig body;
A distance adjustment block horizontally movably coupled to the jig body;
A gap adjustment block horizontally movably coupled to the jig body;
A center gap block coupled to the jig body; and
Includes a magnetic block movably coupled to the jig body,
The jig body includes a groove for fixing a distance adjustment block, a groove for fixing a magnetic block, and a groove for fixing a gap adjustment block,
The distance adjustment block includes a distance adjustment block base, a hinge portion, a pair of wings, and a pair of stoppers,
The gap adjustment block includes a gap adjustment block base and a gap adjustment block base fixing knob, and the gap adjustment block base includes an upper surface configured in multi-step steps,
The center gap block includes a center gap block base and a center gap block base fixing knob, and the center gap block base includes a wedge-shaped end and a round end located opposite to each other,
The magnetic block is a jig for installing a guide ring of an automatic welding carriage, including a magnetic base, a magnetic base fixing bracket, a magnetic base operation knob, and a magnetic base fixing knob. delete delete According to paragraph 1,
A jig for installing a guide ring of an automatic welding carriage, wherein the pair of wings and the pair of stoppers are configured to rotate downward with respect to the distance adjustment block base via the hinge portion. According to paragraph 1,
The hinge part is a jig for installing a guide ring of an automatic welding carriage including a spring device attached hinge. delete According to paragraph 1,
A jig for installing a guide ring of an automatic welding carriage, further comprising an auxiliary gap adjustment block configured to be mounted on the upper surface of the gap adjustment block base. In clause 7,
The auxiliary gap adjustment block is a jig for installing a guide ring of an automatic welding carriage including a magnet mounted at the bottom. delete delete According to paragraph 1,
The magnetic base is a jig for installing a guide ring of an automatic welding carriage including a round bottom. A method of using a jig for installing a guide ring of an automatic welding carriage according to any one of claims 1, 4, 5, 7, 8, and 11,
Step of fitting up two pipes (S10);
Positioning the guide ring installation jig of the automatic welding carriage on the outer peripheral surface of one of the two pipes (S20);
Inserting one end of the center gap block base into the gap between the two pipes (S30);
Fixing the center gap block base to the jig body using a center gap block base fixing knob (S40);
Operating the magnetic base using the magnetic base operation knob (S50);
Fixing the magnetic base on the outer peripheral surface of the pipe using a magnetic base fixing knob (S60); and
For guide ring installation of an automatic welding carriage, including the step of adjusting the horizontal position of the gap adjustment block base to match a predetermined gap and then fixing the gap adjustment block base to the jig body using a gap adjustment block base fixing knob (S70). How to use a jig. According to clause 12,
In the step (S30), if the two pipes are not welded, the wedge-shaped end of the center gap block base is inserted into the gap between the two pipes, and if the two pipes are tack-welded, A method of using a jig for installing a guide ring of an automatic welding carriage in which the round end of the center gap block base is inserted into the gap between the two pipes. According to clause 12,
The step (S70) is a method of using a jig for installing a guide ring of an automatic welding carriage, which is performed with an auxiliary gap adjustment block mounted on the gap adjustment block base. According to clause 12,
After the step (S70), the method of using a jig for installing a guide ring of an automatic welding carriage further includes a step (S80) of temporarily fixing the guide ring of the automatic welding carriage on the outer peripheral surface of the pipe. According to clause 15,
After the step (S80), formally fixing the guide ring of the automatic welding carriage on the outer peripheral surface of the pipe (S90) and removing the jig for installing the guide ring of the automatic welding carriage from the outer peripheral surface of the pipe ( Method of using a jig for installing a guide ring of an automatic welding carriage further comprising (S100).

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