KR100202363B1 - Welding apparatus for tubular pipe shear key - Google Patents

Abstract

OBJECT OF THE INVENTION The present invention relates to a continuous automatic welding device of a shear key concentrically reinforced on the inner circumferential surface of a large tubular pile used in the marine industry.

In the configuration of the present invention, the column 10 is installed on the upper portion of the base frame 18 that is moved back and forth along the rail 30 of the ground, is orthogonal to the column 10, and the boom slides in the vertical direction In the manipulator M provided with 12, the weight balance 16 is installed at the rear end of the boom 12, and the gap is adjusted in the longitudinal direction of the boom 12 at the top end, and the end is Twin carriages 32 having a pair of torches 64 and 66 installed to face inclined to each other are installed, so that the left and right sides of the sheer key 42 concentrically reinforced on the inner surface of the tubular pile 40 are described above. Welding is performed simultaneously with a pair of torches 64 and 66.

Description

Shea key welding device for large tubular pile

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuous automatic welding device of a shear key concentrically reinforced on the inner circumferential surface of a large tubular pile used in the marine industry. Twin carriages with a pair of torches located on the left and right sides of the sheer key of the tubular pile mounted on the turning roller at the front end of the boom installed horizontally perpendicular to the vertically installed column. And a sheer key welding device of a large tubular pile to allow continuous automatic welding of the sheer key.

In general, large tubular files are used for the marine industry, and generally have a diameter of 2000 to 3000 It is a large structure that can be manufactured in specialized steel mills. The inner surface of the tubular pile is provided with a plurality of sheer keys concentrically to provide a reinforcing structure.

In the production of 60-63 sets of tubular piles, two to four workers take a long time to complete.

In addition, the inner surface of the tubular pile is provided with a plurality of shear keys (Shear Key) having a concentric circle to provide a reinforcing structure.

Conventionally, the installation of the shear key as described in the tubular file is performed as a semi-automatic operation. This semi-automatic operation takes a lot of work time and work time, and it is vulnerable to safety of work due to welding fume generation. In addition, there was a problem of deterioration of efficiency and production air delay due to delay of working time.

More specifically, at the same time the sheer key is installed on the inside of the large tubular pile, the operator enters with a wire feeder and a torch and welds the left and right sides of the shear key, in which case the tubular pile has a constant speed and constant Direction, so that the operator can perform the work in consideration of the rotational speed, or after welding a certain distance, go out of the tubular pile, rotate the tubular pile by the next welded distance, and then go back into it. The welding process is performed continuously.

Therefore, the welding work time of the operator not only takes a lot of time, there is a problem that the production air is delayed due to the decrease in the work efficiency due to the delay of the continuous work and the failure rate after the welding work is increased due to the impossibility of the continuous work.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object thereof is to provide a continuous automatic welding device of a sheer key that is reinforced concentrically on the inner circumferential surface of a large tubular pile for use in the marine industry. A column is installed at an upper portion of the base frame which is moved back and forth along the rail, and is orthogonal to the column, and a boom is installed in a boom that slides upward and downward. A weight balance is installed at the rear end of the boom. At the same time, the rear end of the boom is adjusted in the longitudinal direction of the boom and is provided with a twin carriage having a pair of torches that are inclined so as to face the end of the boom. Shear key welding device of a large tubular pile that welds the left and right sides simultaneously with the pair of torches By providing.

Figure 1 is an exemplary side view showing the overall configuration of the present invention.

Figure 2 is an exemplary side view showing the configuration of the twin carriage according to the present invention.

3 is a side view showing the twin carriage of FIG. 2 from another direction.

4 is a schematic perspective view of a large tubular pile to which the present invention is applied.

5 is a partial cross-sectional view taken along the line A-A of FIG.

6 is a diagram illustrating an application state of the present invention.

* Explanation of symbols for main parts of the drawings

M: Manipulator 10: Column

12: Boom 14: Boom Slide

16: weight balance 18: base frame

20: wheel 22: boom phase Lower drive part

24: Fume collector 26: welding machine

28: carriage driver unit

30: rail 32: twin carriage

34: rope 36: turn buckle

38: Feeder Slide 40: Tubular File

42: Shea Key 44: Turning Rollers

46: turning roller support

48: earth clamp 50: wire feeder

52: weld torch 54: suspension rope

56: control box 58: torch mount

60: Shea Key Detection Sensor

61: driving front obstacle winding sensor

62: running wheels 64,66: first and second torch

70: utility line 72: trolley

Next, the configuration of the present invention will be described in detail with reference to the accompanying drawings.

Figures 1 to 3 show the sheer key welding device of a large tubular pile according to the present invention, the sheer key welding device of this large tubular pile is a base which is conveyed back and forth through the rail 30 of the ground. The frame 18, the column 10 vertically entered in the upper part of this base frame 18, the boom 12 installed vertically orthogonally horizontally with respect to this column 10, and this boom It is composed of a plurality of twin carriages 32 are installed to be maintained at a constant interval at the front end and to be adjusted at a fine interval at the same time.

The base frame 18 is provided with four wheels 20 corresponding to the rails 30 on the lower surface thereof, and a welder 26 and a fume collector 24 for collecting the welding fumes generated during the welding operation are installed on the upper surface thereof. A carriage drive unit 28 for operating the twin carriage 32 installed in the boom 12 is installed.

The column 10 is a column, and is fixed to an upper surface of the base frame 18, and a boom 12 that is vertically slidably moved is installed at an upper portion thereof. ) Is provided with a boom drive unit 22 for vertical operation.

The boom 12 is installed through the boom slide 14 which is operated up and down in the column 10 and the boom 12 is installed orthogonal to the column 10, and the turn buckle 36 It is suspended by the rope 34 provided.

In addition, a weight balance 16 is installed at the rear end of the boom 12, and at least two or more twin carriages 32 are installed at the front end.

The twin carriage 32 is suspended with a suspension rope 54 on the feeder slide 38, which can be adjusted in the boom 12, and the feeder slide 38 is inclined as shown in FIG. 3. A roller 68 opposite to the side surface is provided to be interviewed with the upper surface of the boom 12 to be operated manually.

The chant feeder slide 38 has a circular shape at the top, and a pair of wire feeders 50 provided with a cable and a hose are installed.

The twin carriage 32 has a lower end facing the first and second torches 64 and 66 which are installed on the mount 58 so as to be inclined, and a control box 56 is provided at one side thereof, and a driving wheel at the lower end thereof. 62 is built up.

The twin carriage 32 is provided with a sheer key detection sensor 60 and a carriage front obstacle detection sensor 61 at an appropriate position, and the weld torch cable 52 withdrawn from the wire feeder 50 includes the first and the second. Connected to welding torches 64 and 66.

The twin carriage 32 is operated by a remote control (not shown), and a fume collector mouse (not shown) is installed around the welding torch 64 and 66 of the twin carriage 32. , It collects welding fume generated during welding.

4 and 5 show a tubular pile 40 to which the present invention is applied. Shear keys having a reinforcement structure concentrically on the inner surface of the tubular pile 40 are illustrated. Key 42 is provided.

The tubular pile 40 is cylindrical, the outer diameter of the short pipe is 2,000 ~ 3,000 And the short pipe length is 4,000 Single tube thickness is 20-100 to be.

And the shape (cross section) of the sheer key 42 is 20 X 20 One weld length of the sheer key 42 is 2/3 of the circumferential length of the tubular pile.

The tubular pile 40 is mounted on the upper portion of the turning roller 44 which is rotated in one direction from the top of the turning roller support 46 placed on the ground as shown in FIGS. 1 and 6 to rotate in one direction. .

On one side of the tubular pile 40, a welding ground earth clamp 48 is installed between the tubular pile 40, and the ground wire is installed on a trolley 72 to have flexibility.

Next, the operation of the present invention will be described in detail with reference to FIGS. 1, 2, and 6.

The boom 12 in which the twin carriage 32 is suspended is installed up and down in the column 10, and the feeder slide 38 mounted on the tip of the boom 12 to suspend the twin carriage 32 is boom. Left and right adjustable in the longitudinal direction of the (12), this boom 12 is drawn out and fixed up to the maximum stroke.

About 900 from the top end of the boom 12 The three twin carriages 32 are suspended on the feeder slide 38 at intervals, and the base frame 18 is advanced on the rails 30 and inside the tubular pile 40 mounted on the turning roller 44. The twin carriage 32 is positioned.

Subsequently, the first and second torches 64 and 66 of the twin carriage 32 are positioned at both ends of the sheer key 42 while pressing the start button of a remote control (not shown) to perform the welding operation. do.

At this time, the turning roller 44 is driven to rotate the tubular pile 40 in one direction.

The stop of the welding operation is to press the stop button of the remote control twin carriage 32 stops the operation to stop the welding operation, at this time turning roller 44 also stops at the same time.

In addition, the stopping of the welding operation is automatically stopped at the same time as the position of the end of the sheer key 42 is sensed by the sensing signal of the pair of sheer key detection sensors 60 provided in the twin carriage 32.

The control of the welding speed puts the tubular pile 40 on the turning roller 44 and rotates the tubular pile 40 so that the tubular pile in-side circumferential speed becomes an appropriate welding speed, and the tubular pile 40 Twin carriage 32 is installed on the in-side of the tubular pile (40) in the opposite direction of the tubular pile (40) rotational direction, running at the same speed as the circumferential speed, the welding work position is always the lowest part of the tubular pile (40) Be centrally located.

The welding power supply is configured to be controlled by the carriage driver unit 28 mounted on the base frame 18.

In other words, the column 10 is installed on the upper part of the base frame 18 which is moved back and forth along the rail 30 of the ground, is orthogonal to the column 10, and the boom 12 slides in the vertical direction. In the manipulator (M) to be installed, the weight balance 16 is installed at the rear end of the boom 12 and at the same time the gap is adjusted in the longitudinal direction of the boom 12 at the top end, so that the end faces each other. The twin carriage 32 is provided with a pair of inclined torch 64, 66, and the pair of left and right sides of the sheer key 42, which are concentrically reinforced on the inner surface of the tubular pile 40, are provided. Welding to the torch (64, 66) at the same time, the twin carriage 32 is a feeder having a pair of wire feeder (50) while being mounted on the boom 12 while maintaining a constant interval of at least two or more Suspended with slide rope 54 on slide 38, respectively. Installation is, up to which the tube sensor 60, which by sensing the shear key 42, an end of file (40) stops the welding installation.

Reference numeral 70 in the accompanying drawings denotes a utility line, and M denotes a manipulator.

The effects of the present invention will now be described with reference to the drawings.

Twin carriage 32 according to the present invention is variable to the left and right by a manual operation, the interval is adjusted, and inside the tubular pile 40 mounted on the turning roller 44 by the front and rear operation of the base frame 18. The twin carriage 32 is located, and the boom 12 on which the twin carriage 32 is suspended is adjusted downward by the boom driver 22.

Subsequently, the twin carriage 32 continuously performs a welding operation by remote control, thereby automatically welding the sear key 40 to the inner surface of the tubular pile 40.

Therefore, the welding speed is controlled by adjusting the rotational speed of the turning roller 44 and at the same time, the sheer key 40 is continuously welded automatically.

Therefore, not only one worker can simultaneously perform welding work with four or more welding torches 64 and 66, but also maintain the continuity of welding work, thereby reducing work efficiency and production air.

Claims (2)

In the manipulator is installed in the upper portion of the base frame which is moved back and forth along the rail of the ground, is installed perpendicular to the column, the boom slides in the vertical direction; At the rear end of the boom 12, a weight balance 16 is installed, and at the same time, the gap is adjusted in the longitudinal direction of the boom 12, and a pair of torches 64 and 66 are inclined so as to face the ends. A twin carriage 32 having a groove is installed to simultaneously weld the left and right sides of the sheer key 42 concentrically reinforced to the inner surface of the tubular pile 40 with the pair of torches 64 and 66 at the same time. Shea key welding device of a large tubular pile, characterized in that. The method of claim 1; At least two twin carriages 32 are attached to the boom 12 while maintaining a constant interval at least two, and are suspended by a suspension rope 54 on the feeder slide 38 having a pair of wire feeders 50. Shear key welding device of a large tubular pile, characterized in that the installation is installed, the sensor 60 for sensing the end of the shear key 42 of the tubular pile 40 to stop the welding operation.