KR100227036B1 - First welding device for steel pipe connector - Google Patents

Abstract

The primary welding device for conveying wall steel pipe fittings according to the present invention is to increase the efficiency of the work, such as not requiring a large number of personnel, such as a crane operator and a fitting welder, at the time of fitting installation of the wall steel pipe, the length of the steel pipe 11 It is configured to travel on the narrow tracks 54 and 55 laid in the direction, and has a broadcast trolley 48 having pre-rolls 52 for supporting multiple lifting parts 53, and a walking track in the center. It is constructed in the form of a door that travels on the wide running tracks 54 and 55 laid and placed and has a lifting frame 39 that can be lifted and grips the fittings 53 downward in the lifting frame 39. Elevating fitting gripping means consisting of a roll down roll 24, a pair of centering rolls 26, and an aligning device 21 for performing longitudinal positioning of the fitting 53, and the elevating electromagnetic magnet 40 in a horizontal direction. to A pivoting roll (13), a welding trolley (13) having a molten torch (29), a door-shaped lifting frame (16) and a push down roll installed downward on the lifting frame (16). And a carriage trolley 35 having a liftable fitting gripping means composed of a pair of centering rolls 44 and a liftable electromagnetic magnet 40, wherein the welding trolley 13 and the carriage trolley 35 are provided. The fitting gripping means provided in the assembly is made to be capable of replacing and mounting the pressing roll 24 and the centering roll 26 corresponding to the fitting shape.

Description

Wall Steel Pipe Fitting Carrier Primary Welding Device

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wall steel pipe fitting conveyance primary welding device used in a manufacturing process of a wall steel pipe, and more particularly, to a wall steel pipe fitting conveyance primary welding device for conveying, positioning and priming welding of a fitting.

In general, the installation of fittings in the manufacture of wall steel pipes is carried by the cranes 56 to the top of the steel pipes 11 by the crane 56 and placed on the steel pipes 11, as shown in FIG. After determining the position of the end to fix the end of welding, load is applied to the upper part of the fitting 53 to eliminate the gap between the fitting 53 and the steel pipe 11 and to prevent the longitudinal bending of the fitting 53. The modification is generally made by welding over the entire length of the fitting 53.

However, according to the prior art as described above, in the mounting process of the fitting, the conveyance of the fitting, the positioning, the correction of the gap with the steel pipe, and the correction of the bending in the longitudinal direction are all made by human hands, and in particular, In this case, since the fitting mounting process is more difficult to perform, there is a disadvantage that the work efficiency is lowered.

The present invention has been made to solve the above problems of the prior art, it is possible to efficiently carry out the transfer of the fitting, positioning, initial welding, and to improve the efficiency of the entire fitting mounting work, and on the other hand to achieve the performance An object of the present invention is to provide a wall welded pipe conveyance primitive welding device.

1 is a working state diagram showing a conventional fitting operation.

2 is a side view of the entire wall steel pipe fitting carrier primary welding device according to the present invention.

3 is a cross-sectional view of the weld bogie.

4 is a cross-sectional view of the welding torch lifting block.

5 is a cross-sectional view of the support roll.

6 is a front view of the carriage cart.

7 is a plan view showing the fitting mounting process.

FIG. 8 is a diagram showing (a), (b), (c), (d), and (e) an operation state diagram sequentially showing a fitting mounting process.

9 is a cross-sectional view showing the preroll shape of the transport cart.

Figure 10 (a) is a cross-sectional view of the pipe-shaped wall steel pipe, (b) is a cross-sectional view of the pipe-T-wall steel pipe, (c) is a cross-sectional view of the L-T wall steel pipe.

(A), (b), (c) of FIG. 11 is a figure which shows the shape of the rolling roll and the centering roll corresponding to the shape of a fitting.

* Explanation of symbols for main parts of the drawings

10: steel pipe 12: turning roll

13: welding cart 14: driving means

15: wheel 16: lifting frame

18: drive means 19: electronic magnet

20: drive means 21: an alignment apparatus

22: drive means 23: drive means

24: rolling down 25: driving means

26 centering roll 27 drive means

28: lifting block 29: welding torch

30: drive means 31: drive means

32: lifting block 33: support roll

34: drive means 35: transport cart

36: drive means 37: wheel

38: driving means 39: lifting frame

40: electronic magnet 41: driving means

42: rolling roll 43: driving means

44 centering roll 45 drive means

46: lift block 47: warm jockey

48: carrier cart 49: wheel

50: drive means 51: cylinder device

52: pre-roll 53: fitting

54: running track 55: running track

56: crane 61: roller

In order to achieve the above object, the present invention is configured to travel on a narrow track orbit laid in the longitudinal direction of the steel pipe, and has a transport cart having a plurality of lifting and supporting free rolls, and the trajectory is placed at the center. It consists of a door shape that travels on a wide and wide track, and has a lifting frame that can be lifted, and at the same time, the lifting frame grips a fitting downward and a pair of centering furnaces for the elevable fitting gripping means and fittings. Arrangement device for longitudinal positioning, welding trolley with elevating electronic magnet, rotatable backing roll and molten torch, door type, elevating elevating frame and elevating frame Liftable consisting of a push down roll and a pair of centering rolls It consists of a driving trolley having a gripping gripping means and an elevating electronic magnet, and the gripping gripping means installed on the welding trolley and the carrying trolley carries a wall steel pipe fitting conveying the replacement of the pressing roll and the centering roll corresponding to the fitting shape. Provide primary welding device.

Accordingly, according to the present invention, when the wall steel pipe fittings are fitted, the efficiency of the work can be improved by not requiring a large number of personnel such as a crane operator and a fitting welder as in the prior art.

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

This example is not intended to limit the scope of the invention, but is merely presented as an example.

Referring to the configuration of the wall steel pipe fitting conveyance primary welding apparatus according to an embodiment of the present invention.

First, as shown in FIG. 2, FIG. 3, FIG. 4, FIG. 5 and FIG. 6, the traveling track 54 is laid parallel to the longitudinal direction of the steel pipe 11, and the traveling track 54 ) To make it possible to travel on the door-shaped welding trolley 13 and another transport trolley 35 in the form of a door that can be separated from the welding trolley 13, in particular in the running track 54 Another traveling track 55 is laid parallel to the traveling track 54, and a conveyance trolley for delivery of the fitting material traveling on the traveling track 55 is made.

And, the welding trolley 13 is disposed on the running track 54, suspended on the elevating frame 16, the drive means 18 for elevating and driving the elevating frame 16, and the elevating frame 16 An electromagnetic magnet 19, drive means 20 for elevating and driving the electromagnetic magnet 19, an alignment apparatus 21 in the longitudinal direction of the fitting, and drive means 22 for elevating the alignment apparatus 21. ), The drive means 23 for moving the alignment device 21 in the longitudinal direction of the steel pipe 11, and the left and right synchronous opening and closing in the direction perpendicular to the longitudinal direction of the rolling roll 24 and the steel pipe 11 Lifting block 28 having a centering roll 26, driving means 25 for elevating and driving the lifting block 28, driving means 27 for opening and closing the centering roll 26, detachable welding An elevating block 32 having a torch 29, a driving means 30 for elevating the elevating block 32, and a welding torch 29 in the longitudinal direction of the steel pipe 11. The driving means 31 for moving in the perpendicular direction, the pivoting support roll 33 when the fitting is suspended, and the driving means 34 for turning the support roll 33 in the estimated direction are loaded. It comprises a drive means 14 for driving the whole in the longitudinal direction of the steel pipe (11). Reference numeral 15 denotes a bogie wheel.

In addition, the transport cart 35 is disposed on the traveling track 54 in the same shape as the welding cart 13, the driving means 38 for elevating the elevating frame 39 and the elevating frame 39, and the elevating frame 35. An electronic magnet 40 which can be independently lifted and suspended on the frame 39, a driving means 41 for elevating the electronic magnet 40, an elevating block 46, and driving means for elevating the elevating block 46. (43) and the elevating block (46), the press-down roll (42) of the fitting upward direction, the centering roll (44) for opening and closing by right and left in synchronization with the longitudinal direction of the steel pipe (11), and the centering roll ( The drive means 45 for opening and closing the 44 and the like are mounted, and the drive means 36 for driving the entire bogie in the longitudinal direction of the steel pipe 11 is provided. Reference numeral 37 denotes a wheel, and 47 denotes a warm jockey.

Here, the conveyance trolley 48 is disposed on the traveling track 55, the height adjustment for lifting and holding the pre-roll 52 and the pre-roll 52 having a fitting fixing function for the conveyance transfer of the fitting (53). The cylinder device 51 is provided, and the drive means 50 which drives the whole trolley | bogie in the longitudinal direction of the steel pipe 11 is carried out, and the lifting frames 16 and 39 of the welding trolley 13 and the carrier trolley 35 are provided. It is made of a structure that can enter the lower part. Reference numeral 49 denotes a wheel.

Referring to the operation of the wall steel pipe fitting conveyance primary welding apparatus according to an embodiment of the present invention configured as described above are as follows.

First, turning rolls in which the steel pipe 11 is disposed at both ends in the longitudinal direction of the steel pipe 11 by a conveying means such as a crane 56 as shown in FIGS. 1 and 7 and 8 (a). I put it on (12). Then, the conveyance trolley 48 is held at a predetermined position, and the fitting 53 is carried by a conveying means such as a crane on the pre-roll 52 which adjusts and maintains the height adjusting cylinder device 51 at a height that matches the diameter of the steel pipe. Loads. The pre-roll 52 carries T-shaped, L-shaped, or pipe-shaped fittings as shown in FIG. 9, but has a shape that maintains the loading state of the fittings. When the conveyance trolley 48 travels, it travels, fixing the pre-roll 52 or fixing the fitting 53 using the clamping apparatus not shown. The welding trolley 13 and the transportation trolley 35 maintain and adjust the height according to the diameter of the steel pipe 11 with the lifting frames 16 and 39 by the drive means 18 and 38. FIG.

Next, FIG. 8B shows the transfer of the fittings from the conveyance trolley 48 to the welding trolley 13 and the conveyance trolley 35, and the conveyance trolley 48 is the direction of the steel pipe 11. The vehicle enters the elevating frames 16 and 39 and the lower portion of the welding cart 13 and the transport cart 35 and stops at a predetermined position. The lengths 19 and 40 of the welding trolley 13 and the transportation trolley 35 are lowered and become magnetic, and the fitting 53 rises to the height without interference of the upper surface of the steel pipe 11. Then, the supporting magnet 33 of the welding trolley 13 pivots and the magnet 19 enters the lower portion of the fitting 53 is lowered so that the fitting 53 is loaded on the idler roller, and the magnet is lost.

8 (c) shows the conveyance of the fitting 53. The welding trolley 13 and the transport trolley 35 simultaneously start traveling toward the steel pipe 11, and the welding trolley 13 is a steel pipe 911. ) Is detected and stops at the end face of the transport cart 48 side. Although the order varies depending on the length of the fitting material, in general, when the length is long, the welding bogie 13 first decelerates and stops. After the stop of the welding trolley 13, the tip end is suspended and held by the electromagnetic magnet 40, and the rear end of the fitting 53 conveyed by the carrier trolley 35 is supported by the supporting roll of the welding trolley 13. Is carried and supported by 33). The transport trolley 35 which is traveling regardless of the welding trolley 13 detects and stops the rear end of the fitting 53 by a detector not shown in the welding trolley 13. The conveyance trolley 48 is rotatably supported by the rear end in order to hang down the fitting 53 by the pre-roll 52, but it is predetermined when the rear end of the fitting 53 deviates from the free roll 52. Return to the standby position of, and accept the next fitting.

(D) of FIG. 8 is a view showing the positioning of the fitting. The magnet 19 of the welding trolley 13 is magnetically attracted to the fitting 53, and then the fitting 53 is supported by the supporting roll ( 33) to the predetermined height and stop. The backing roll 33 then rotates and withdraws from the bottom of the fitting 53 to avoid. The lifting magnets 28, 46 of the welding trolley 13 and the transport trolley 35 are lowered, and the stop 53 stops at a predetermined position where the fitting 53 is not connected to the steel pipe 11. ) Is lowered down to the height corresponding to the positions of the electromagnetic magnets 19 and 40 under light pressure, and the down rolls 24 and 42 contact the fitting 53 and stop in the low pressure state. Then, the centering rolls 26 and 44 operated in synchronism with each other are loaded in the race condition, and the fitting 53 is approximately positioned at the center of the steel pipe 11 while maintaining the posture of the fitting. The press-down rolls and the centering rolls are also provided with a plurality of welding trolleys and transport trolleys, and replaced in accordance with the shape of the fitting 53 as shown in (a), (b) and (c) of FIG. As shown to b) and (c), it can also respond to manufacture of wall steel pipe from which the upper and lower fitting shape differs. Thereafter, the rolling rolls 24 and 32 lower the electromagnetic magnets 19 and 40 under the condition of light pressure, and are loaded on the upper end of the steel pipe 11 while maintaining the posture of the fitting 53. Slow down.

Next, the arranging apparatus 21 having the roller 61 at the lower end portion is lowered down to the upper surface of the steel pipe under light pressure, and the cylinder apparatus is in contact with the upper surface of the steel pipe 11 at the roller 61 at the lower end portion. (23) extends in the longitudinal direction of the steel pipe (11). The aligning device 21 presses the end of the fitting 53, and since the pressing roll 24 and the centering roll 26 are rotatable under light pressure, the fitting 53 is moved while maintaining the posture thereof so that the steel pipe It hits the end face of (11), and eruption stops. Positioning of the fitting 53 in the longitudinal direction is certainly possible by the alignment apparatus 21 hitting and stopping the end surface of the steel pipe 11. Generally, in this state, the pressure reduction roll 24 and the centering roll 26 are set to a high pressure, and welding may be started by the evacuation and avoiding of the alignment device 21 and the magnet 19, but the fitting is long when the length of the fitting is long. Since the fittings may change when the ends are gripped and the center position may be shifted, the carriage cart 35 loses the magnetism of the electromagnetic magnet 40, raises it, and travels in the direction of the welding cart 13, so that the fitting 53 By shortening the gap of the centering rolls 26 and 44 which are positioning, the holding | maintenance holding | maintenance of a welding part position is made more certain.

8 (e) shows the welding of the fitting 53. The welding torch 29, which has set the inclination angle in the welding portion of the fitting 53 in advance, is lowered, stopped and driven by the driving means 30. The means 31 approach the weld of the fitting 53. By arranging a plurality of welding carts in the welding cart 13 and exchanging them in accordance with the shape of the fittings, as shown in FIGS. 10B and 10C, it is possible to cope with the manufacture of wall steel pipes having different top and bottom fitting shapes. Simultaneously with the start of welding, the welding trolley 13 runs to the conveyance trolley side in reverse. The fitting 53 and the steel pipe 11 come into close contact with each other by pressing and retaining the fitting 53 by the pressing roll 24 and the centering roll 26 disposed in front of the welding torch 29. Bending in the longitudinal direction of 53 is corrected to enable continuous and stable welding. Next, the transport trolley 35 starts to travel when the gap with the welding trolley 13 becomes short, stops traveling by detecting the end of the fitting 53 by a detector (driving stop) provided, and the centering roll. (44) retreats and the lifting block 46 rises. Next, the rolling roll 42 and the centering roll 44 also run at a high speed toward the welding trolley 13 side at the time when they fall from the fitting 53, and stop at a predetermined position. Next, when the welding trolley 13 which has been welded detects the end of the fitting 53 by a detector (not shown), the centering roll 26 is retracted and the lifting block 28 is raised to raise the fitting 53. The welding stops at the end to stop driving. After that, the welding torch 29 retreats and the lifting block 32 rises.

Then, when the pressing roll 24, the centering roll 26, and the welding torch 29 withdraw from the fitting 53, they travel to the transport cart side and the transport cart 35 also returns at the same time. The original fitting, which is freed from), stops at the moved position. The welding trolley 13 and the transportation trolley 35 rotate the steel pipe 11 by the turning rolls 12 while inverting the upper and lower sides while traveling to the transportation trolley side, and then prepare the initial welding of the fittings. The welding trolley 13 and the transportation trolley 35 which have returned to the moved position retreat in advance, and then move the joint from the transfer trolley 48 to which the fitting material is loaded, and repeat the same operation. This completes the mounting of the opposite fitting.

Here, in the conveyance and positioning mechanism of the fittings, the magnets 19 and 40 are preferably stored in the guide at the upper limit and are not shaken by the travel of the fitting. It is preferable that the structure be brought into a freely suspended state by which the positioning is facilitated by the centering rolls 26 and 44. In addition, the centering rolls 26 and 44 need to determine a roll shape in the relative positional relationship with the rolling rolls 24 and 32, and the method of having a clearance by a spring float etc. to a slightly upward direction is preferable. As for the shape of a rolling roll and a centering roll, as shown in FIG. 11, the method of changing the shape of a roll corresponding to the shape of a fitting is good.

In the arrangement of the wall steel pipe fitting conveyance welding apparatus according to the present invention as described above, it is possible to change the arrangement order of the transport cart and the weld cart according to the longitudinal mounting standard of the fitting, and the transport cart and the weld cart are grounded. It's a way to drive on the tracks, but it can also be hung from the ceiling.

As described above, the primary welding device for conveying wall steel pipe fittings according to the present invention can increase the efficiency of work, such as not requiring a large number of personnel such as a crane operator and a fitting welder, as in the prior art when fitting a wall steel pipe. Provide an advantage.

Claims (2)

The conveyance trolley 48 which is configured to travel on the narrow tracks 54 and 55 laid in the longitudinal direction of the steel pipe 11, and has a free roll 52 for supporting multiple fittings 53 which can be elevated. Wow; It is configured in the form of a door that runs on the wide running track (54, 55) laid on the pedestrian track in the center, and has a lifting frame (39) that can be lifted, and at the same time, the lifting frame (39) has a downward fitting A lowering roll 24 for holding 53, an elevating fitting gripping means composed of a pair of centering rolls 26, an aligning device 21 for longitudinal positioning of the fitting 53, and an elevating electron A welding trolley 913 having a magnet 40, a support roll 33 rotatable in a horizontal direction, and a welding torch 29; It is configured in the form of a door, the elevating frame 16 which can be lifted, the lowering roll 24 provided in the downward direction on the lifting frame 16, and a pair of elevable fitting gripping means consisting of a pair of centering rolls 44 Wall steel pipe fitting conveyance primary welding device consisting of a carrier cart (35) having an electromagnetic magnet (40) possible. The method of claim 1, The welding gage (13) and the fitting gripping means installed on the transport cart (35) is a wall steel pipe fitting conveyance primary welding device to be able to replace the pressing roll 24 and the centering roll (26) corresponding to the shape of the fitting.

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