WO2016013780A1 - Vertically moving tig automatic welding apparatus and automatic welding method - Google Patents

Abstract

The present invention relates to a vertically moving TIG automatic welding apparatus vertically moving and TIG-welding a welding portion of a subject being welded, and comprises: a body; an upper frame provided at the upper part inside the body in the horizontal direction; a roller coupled to the lower surface of the upper frame and horizontally moving on the upper end of a subject being welded; a lower plate provided at the lower end of the body; two rails vertically provided inside the body and positioned in parallel to be separated at a fixed distance from each other; a TIG welding means vertically moving along the two rails and welding a welding portion of the subject being welded; and a lifting means provided inside the body so as to vertically move, and enabling a person to board therein. The vertically moving TIG automatic welding apparatus, while horizontally moving along the upper end of the subject being welded, stops at the corresponding position when arriving at the welding portion, and then enables a TIG torch to vertically move along the welding portion and automatic welding to be performed so as to obtain convenient and uniform welding effects, and TIG-welds the welding portion in stages through multiple paths by using shoes manufactured in various types in consideration of heat input amount, thereby obtaining a smooth welded shape and improving welding efficiency.

Description

Vertical Moving Tig Automatic Welding Device and Automatic Welding Method

The present invention relates to a vertical moving tag automatic welding device and an automatic welding method, and more particularly, to a vertical moving tag automatic welding device and an automatic welding method for welding a large storage tank.

Storage tanks used in factories that produce various oils or gases generally use large storage tanks. These large storage tanks are quite large, around 100m in diameter, and the size of one steel plate constituting the large storage tank is about 3m in height.

Conventionally, in order to produce such a large storage tank, in the case of vertical welding, the welders welded parts connected by manual arc welding after temporarily attaching the steel plates. In the case of welding a large storage tank by a conventional welding method, when a welder welds a part of a large storage tank, a welder must move by using a ladder or other safety passage to weld another part, which takes a considerable time for welding. There is a problem.

In addition, in the case of welding in the vertical direction of the welding portion that the steel plates constituting the large storage tank abuts, the welder has to carry a heavy welding torch directly to weld, there is a problem that the work efficiency is poor and the welding effect is not good. On the other hand, TIG welding usually uses tungsten rods as electrodes, and when high-frequency high-frequency and welding power are supplied to the electrodes, arcs occur when current flows through the base metal and tungsten rods, and the welding wire is melted by arc heat. It is a welding method made.

In the case of large storage tanks, the thickness of the steel plate used for welding is also very thick, so in the case of automatic TIG welding, the welding must be performed several times in consideration of the heat input amount, as shown in FIG. Since the distance between the tungsten electrode 18 and the welding bead is not constant during the third welding, the tungsten electrode 18 must be repeatedly moved forward and backward so that the machine is prone to failure during long use and the welding efficiency is lowered. There is.

In the case of the conventional tag welding device there is such a problem, there is an urgent need for a device that can easily weld a large-sized storage tank without a failure in the welding device.

The present invention is to solve the above problems of the prior art, when moving to the horizontal welding along the upper end of the welding target to reach the welding position and then the torch and wire rises vertically along the welding site and automatic welding It is an object of the invention to provide a vertically movable TIG automatic welding device and automatic welding method.

In addition, it is an object of the present invention to provide a vertical moving automatic welding apparatus and automatic welding method that can be welded while the operator moves along the vertically rising torch to ride on the lifting means.

In addition, by using the shoe made of various types in consideration of heat input amount, the welding part can be welded in stages over several passes to obtain a smooth welding shape and improve the welding efficiency. It is an object of the invention to provide a welding method.

In addition, when welding using a TIG torch and wire, the welding material is welded between the back shoe installed at the rear of the iron plate and the shoe mounted at the front, so that the influence of external wind can be minimized, and the weld material does not flow out. An object of the present invention is to provide a vertical moving TIG automatic welding device and an automatic welding method for creating an ideal welding shape.

In order to achieve the object as described above, according to the present invention, there is provided a vertical moving TIG automatic welding device. According to an exemplary embodiment of the present invention, a vertical moving TIG automatic welding device for vertically elevating a welding portion of a welding object (TIG), comprising: a gas; An upper frame installed in a transverse direction above the gas; A roller coupled to a lower surface of the upper frame and horizontally moving an upper end of a welding object; A lower plate installed at a lower end of the gas; Two rails installed vertically in the gas and positioned side by side apart from each other by a predetermined distance; TIG welding means for vertically moving along the two rails, welding the welding portion of the welding object; And installed inside the body to move vertically, and includes a lifting means that the person can ride.

In addition, the lower and lower plates of the base may be divided into two to form a separation space, and the welding object may be accommodated into the base through the separation space.

In addition, the rollers are coupled to the left and right of the lower surface of the upper frame one by one, the two rollers may be horizontally moved by being seated on the upper end of the welding object accommodated into the body through the separation space.

In addition, the plurality of first vertical frame is located on the right side of the base and installed vertically between the upper frame and the lower plate; And a plurality of second vertical frames positioned on the left side of the base and vertically installed between the upper frame and the lower plate, wherein each vertical frame constituting the first vertical frame and the second vertical frame has a lengthwise direction of the frame. The upper vertical frame and the lower vertical frame formed with a plurality of holes at regular intervals, and the lower portion of the upper vertical frame is coupled to the inner side of the lower vertical frame, but through the holes formed in the upper vertical frame and the lower vertical frame It is possible to adjust the height of the gas by adjusting the position of the portion coupled by.

In addition, the first guide vertical frame which is located inside the body and is installed vertically between the upper frame and the lower plate and the second guide is positioned side by side at a predetermined distance apart from the vertical frame and installed vertically between the upper frame and the lower plate Further comprising a vertical frame for the guide, the two rails are composed of a first rail and a second rail, the first rail is a sawtooth-shaped teeth are formed on both sides of the rail and the second rail is a slidable plate shape, The serrated first rail is attached to the vertical frame for the first guide using an electromagnet attached to the lower portion, and the plate-shaped second rail is attached to the vertical frame for the second guide using an electromagnet attached to the lower portion. Can be.

In addition, the tag welding means may include a lifting body provided with a gear for vertical movement and a gear driving the first rail of the toothed shape; A control unit which vertically moves on a plate-shaped second rail and is connected to the lifting body through a connecting frame to move together during vertical movement of the lifting body and controls the driving of the lifting body; A torch connected to the elevating body and moving together during vertical movement of the elevating body to weld the welding part of the welding object; A feeding cable connected to the elevating body and moving together when the elevating body is vertically moved to supply a wire; Shoe contact means installed on the connection frame and movable back and forth; And a shoe support coupled to the shoe contact means and coupled with the shoe.

In addition, the distance adjusting means for adjusting the distance between the wire supplied from the tungsten electrode rod and the feed cable of the TIG torch and the welding portion of the welding object; And a weaving means provided on the elevating body and weaving a teat torch and a wire to the left and right by moving the distance adjusting means to the left and right. The control unit controls the distance adjusting means between the tungsten electrode rod and the wire and the welding part. By adjusting the distance, the weaving means can be controlled so that the torch and the wire weaving to the left and right.

In addition, the elevating means is a chain moving pipe installed vertically in the base; A lift guide attached to one side of the chain moving tube; A plurality of guide rollers movable up and down along the lift guide; A lift attached to the plurality of guide rollers to move up and down; A first sprocket provided at a lower portion of the chain moving tube; A motor for driving the first sprocket; A second sprocket provided on an upper portion of the chain moving tube; And a first sprocket and a second sprocket, which move up and down by driving the motor, penetrate the chain moving tube, and one end is connected to the top of the lift and the other end is connected to the bottom of the lift to move the lift up and down according to the driving of the motor. It may include a chain.

In addition, the elevating means may further include a take-up means which is axially connected to the second sprocket provided on the upper portion of the chain moving tube, one on each side.

In addition, when the roller horizontally moves the upper end of the welding object, the lower support roller further includes a wheel that rotates along the welding object on both sides of the lower portion of the base so that the lower portion of the base moves without hitting the welding object, The lower support roller may allow the wheel attached to the rod to support the welding object by moving the rod forward by the rotation of the screw.

The welding means may further include an electromagnet provided under the base to fix the base to the weld target and a cylinder for moving the electromagnet in the direction of the weld target or vice versa. Can be.

In addition, it may further include a ladder provided on the inner side of the body to enable the worker to move to the opposite side of the welding object.

On the other hand, in order to achieve the object as described above, in accordance with the present invention, there is provided a vertical moving tag automatic welding method. According to one preferred embodiment of the present invention, as a vertical moving tag automatic welding method using the vertical moving tag automatic welding apparatus and various types of shoes, the welding portion of the welding target when welding the welding object using the tag welding means A first step of welding the empty space between the front of the first type of shoe and the object to be welded by pushing and supporting the first type of shoe in which the front is inserted into the welded portion by a first length; And between the front of the second type of shoe and the welded object welded using the first type of shoe after the shoe is pushed in and supported by the second type of shoe inserted into the welding site by a second length shorter than the first length. And a second step of welding the empty space.

In the first step of welding, the back shoe may be pushed into the opposite side of the welding object welding part, and the back shoe may be welded by using a bracket.

In addition, the first and second steps may be repeated after welding the welding part of the object to be welded to raise the TIG welding means.

According to the vertical moving tag automatic welding device and automatic welding method according to the present invention, when the welding portion is reached while moving horizontally along the upper end of the welding object, the torch rises vertically along the welding portion and stops at the corresponding position. It is possible to obtain a convenient and uniform welding effect.

In addition, the operator can be welded while moving along the Tig torch to rise vertically in the lift means can be quite convenient and increase the welding efficiency.

In addition, by using a shoe made of various types in consideration of the heat input amount, the welding part can be tig welded step by step over several passes to obtain a smooth welding shape and improve welding efficiency.

In addition, when welding using the TIG torch, the welding material is welded between the back shoe installed at the rear of the iron plate and the shoe mounted at the front, so that the influence of external wind can be minimized, and the welding material does not flow out, ideal welding You can make a shape.

1 is an exemplary view showing a non-uniform welding bead is generated when the conventional welding device for welding.

Figure 2 is an exemplary view showing a state in which a uniform welding bead is generated when the automatic vertical welding automatic welding device of the present invention is welded.

Figure 3 is a perspective view of a vertical movement automatic welding apparatus according to the preferred embodiment of the present invention.

Figure 4 is a side view of the vertical moving automatic welding apparatus according to the preferred embodiment of the present invention.

5 is a perspective view of the lifting means.

6 is a side view of a portion of the lifting means;

7 is a rear view of a part of the lifting means.

Figure 8 is a front view of the take-up means provided on the upper portion of the lifting means.

FIG. 9 is a partial enlarged view of a shoe and a back shoe closely contacted to a welding part, a shoe contact means supporting the shoe, and a tag torch and a wire which can be moved back and forth at the welding part and which are capable of weaving left and right.

10 is an exemplary view showing a state of a wire and a tungsten electrode supplied from a feed cable when welding a steel plate using a shoe.

FIG. 11 is a plan view in which a torch and a wire which can move forward and backward at a welded part and which can be left and right weaved are connected to a lifting body.

12 is a plan view of the shoe contact means for closely supporting the shoe.

Figure 13 is an exemplary view showing a vertical moving jig automatic welding apparatus according to the present invention welding by using different types of shoes when welding the welding step by step over several passes.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment according to the present invention.

Figure 2 shows a state in which a smooth weld shape (welding bead) is produced unlike the prior art when welding the iron plate 1 by using the vertical moving tag automatic welding device 100 of the present invention. The vertical moving TIG automatic welding device 100 for generating such a weld bead will be described in detail below.

Referring to Figures 3 to 12, the vertical moving automatic TIG welding apparatus 100 is a device for vertically raising the welding portion of the welding object. In the following, the welding object is an example of the iron plate (1) constituting a large storage tank.

The vertical moving TIG automatic welding device 100 is coupled to the lower surface of the upper frame 3, the upper frame 3, which is installed in the horizontal direction in the upper portion of the base (2), the base 2 and the top of the iron plate (1) Roller 30 to move horizontally, the lower plate 4 is installed at the bottom of the base (2), two rails (42a, 42b), which are installed vertically inside the base (2) and are spaced apart from each other a certain distance, two Tig welding means for moving vertically along the two rails 42a and 42b, and welding means for welding the welded portion of the iron plate 1, and vertically installed in the base 2 to move vertically, and a lifting means capable of riding a worker. The two rails are composed of a sawtooth-shaped first rail 42a having teeth formed on both sides of the rail and a slidable plate-shaped second rail 42b.

Since the vertical movement automatic welding device 100 is configured in the form of a frame as a whole, the weight is light, so it is also suitable for welding by horizontally moving the upper end of the thin iron plate 1 using the roller 30.

The lower and lower plates 4 of the base 2 are divided into two to form a space. That is, the base 2 has a box-shaped frame having a rectangular shape, and the lower part is divided into two, and the iron plate 1 may be accommodated into the base 2 through the separation space. The base 2 has a roller 30 seated on the upper end of the iron plate 1 accommodated therein so as to horizontally move the upper end of the iron plate 1. The iron plate 1 is sandwiched in the center of the base 2, so that the balance of the base 2 can be maintained well, and there is no fear that the base 2 will be separated from the base plate 1.

The rollers 30 are coupled to the left and right sides of the lower surface of the upper frame 3 one by one. The two rollers 30 are horizontally movable by being seated on top of the iron plate 1 accommodated into the base 2 through the spaced space.

Specifically, the roller 30 is coupled to the shaft 31 to rotate, the shaft 31 is connected to the motor 33 through the coupling (32).

A plurality of first vertical frames 5a and 5b positioned on the right side of the base 2 and vertically installed between the upper frame 3 and the lower plate 4, and positioned on the left side of the base 2 and the upper frame 3 and It includes a plurality of second vertical frames (6a, 6b) installed vertically between the lower plate (4).

Referring to FIG. 3, two first and second vertical frames 5a and 5b are provided at the front and two at the rear of the iron plate 1, and the second vertical frames 6a and 6b also have the iron plate 1. The center has two in the front and two in the back.

Upper vertical frames 5b and 6b in which a plurality of holes H are formed at regular intervals along the longitudinal direction of each of the vertical frames constituting the first vertical frames 5a and 5b and the second vertical frames 6a and 6b. And lower vertical frames 5a and 6a, and a lower portion of the upper vertical frames 5b and 6b is coupled to the inside of the lower vertical frames 5a and 6a.

The height and height of the base 2 can be adjusted by adjusting the positions of the portions joined by the pins through-through the holes H formed in the upper vertical frames 5b and 6b and the lower vertical frames 5a and 6a. When transporting the gas 2 in a vehicle, the height of the gas 2 is controlled to be lowered when moving, and when the gas 2 is used, the upper vertical frames 5b and 6b are pulled up again to the hole H. Use after fixing with pin.

Located side by side apart from the first guide vertical frame (8a) and the first guide vertical frame (8a) which is located inside the body (2) and installed vertically between the upper frame (3) and the lower plate (4) It further comprises a second guide vertical frame 8b installed vertically between the upper frame 3 and the lower plate 4.

The two rails are composed of a first rail 42a and a second rail 42b, and the first rail 42a has a tooth shape in which teeth are formed on both sides of the rail, and the second rail 42b has no teeth and slides. Possible plate shape. The serrated first rail 42a is attached to the wing 43 provided on the first guide vertical frame 8a by using the electromagnet 41 attached to the lower portion, and the plate-shaped second rail 42b is The electromagnet 41 attached to the lower portion is attached to the wing 43 provided in the second guide vertical frame 8b.

Several electromagnets 41 are fixedly attached to the lower part of the 1st rail 42a and the 2nd rail 42b along the length of each rail. The first rail 42a can be attached to and detached from the wing 43 provided on the vertical frame 8a for the first guide using the electromagnet 41, and the second rail 42b using the electromagnet 41 is used. Can be attached to and detached from the vanes 43 provided on the vertical guide frame 8b for the second guide, and there is a problem in the TIG welding means for vertically moving the first rail 42a and the second rail 42b. The first rail 42a and the second rail 42b can be easily removed from the first guide vertical frame 8a and the second guide vertical frame 8b for repair.

The first guide vertical frame 8a and the second guide vertical frame 8b are similar to the first vertical frames 5a and 5b and the second vertical frames 6a and 6b as described above. It is composed of a vertical frame for the upper guide and a vertical frame for the lower guide formed with a plurality of holes (H) at regular intervals along the longitudinal direction, by adjusting the position of the portion coupled by a pin for penetrating the hole (H) The height of (2) can be adjusted.

The TIG welding means is the lifting body 20, the control unit 21, the TIG torch 23, feed cable 12c, shoe contact means, shoe support 26, distance adjusting means 64 and weaving means 71 It includes.

The lifting body 20 includes a gear (not shown) that vertically moves on the serrated first rail 42a and a motor (not shown) that drives the gear. The sawtooth-shaped gear moves vertically on the first rail 42a by the drive of the motor.

The control unit 21 vertically moves on the slidable plate-shaped second rail 42b and is connected through the lifting body 20 and the connecting frame 27 to move together during the vertical movement of the lifting body 20 and the lifting body ( 20) to control the driving.

Tig torch 23 is connected to the lifting body 20 is moved together during the vertical movement of the lifting body 20 and welds the welding portion of the iron plate (1). Specifically, a tungsten electrode bar 18 is attached to the tig torch 23.

Referring to FIG. 9, when welding using the TIG torch 23, the welded object is welded between the back shoe 15 installed at the rear of the iron plate 1 and the shoe 14 installed at the front, so that the external wind Can minimize the effect of the and the weld does not flow out to create the ideal bead (Bead).

The feeding cable 12c is connected to the elevating body 20 to move together during vertical movement of the elevating body 20 and to supply a wire 12e, and the supplied wire 12e is a tag torch 23 and an iron plate 1. The welding portion is welded while the wire 12e is melted by the arc heat generated therebetween.

9 to 11, a drum 12a on which a wire 12e is wound is positioned on an upper portion of the lifting body 20, and a wire feeding tip is connected to a wire 12e in the drum 12a through a feeding cable 12c. The feed motor 12b supplied to 12d is provided. The wire 12e in the drum 12a is continuously supplied to the welding site by the feeding motor 12b.

The supply cable 12c is connected to the lifting body 20 through the connecting frame 22. The vertical movement of the lifting body 20 always moves together with the torch 23.

The shoe contact means is installed on the connecting frame 27 connecting the lifting body 20 and the control unit 21 and is movable forward and backward, and the shoe support 26 is connected to the front of the shoe contact means to connect the shoe 14. )

For example, the shoe contact means is provided with a spring and when the operator turns manually, the shoe support connected to the shoe contact means is brought forward by the force of the spring.

In addition, the shoe contact means may use an air cylinder.

The air cylinder 25 is installed on the connecting frame 27 connecting the lifting body 20 and the control unit 21 to move together when the lifting body 20 is vertically moved, and the piston rod of the air cylinder 25 ( 29 is connected to the shoe support (26). The shoe support 26 is coupled using the shoe 14 and the bolt 28. When the piston rod 29 of the air cylinder 25 moves forward when welding the welded portion of the steel plate 1, the shoe 14 coupled to the shoe support 26 comes into close contact with the welded portion, and in this state, the TIG The torch 23 is used for welding. Since the shoe 14 welds in a state in which the shoe 14 is in close contact with the welded portion, it is possible to prevent the phenomenon of flowing down the welded portion.

Referring to FIG. 12, the front and rear movement control unit 62 is positioned below the air cylinder 25, and the left and right movement control unit 63 is positioned below the front and rear movement control unit 62. Is coupled on the connecting frame (27). By adjusting the left and right movement adjusting unit 63, the position of the air cylinder 25 and the shoe 14 can be adjusted left and right, and by adjusting the front and rear movement adjusting unit 62 of the air cylinder 25 and the shoe 14 The position can be adjusted back and forth.

The distance adjusting means 64 adjusts the distance between the wire 12e supplied through the tungsten electrode rod 18 and the feeding cable 12c of the tig torch 23 and the welding portion of the welding object 1.

Referring to FIG. 11, the distance adjusting means 64 includes a holder 19 for fixing the tag torch 23, a shandong control unit 68 connected to the holder 19, and a forward and backward movement connected to the shandong control unit 68. The control unit 67, the moving unit 66 for supporting the front and rear movement control unit 67 from the bottom and the body 65 for moving the front and rear 66, the motor in the body 65 In operation, the moving unit 66 may move forward or rearward to adjust the distance between the tungsten electrode 18 and the welding site. The feed cable 12c coupled to the holder 19 is always connected with the tungsten electrode 18 by being connected to the shanghai copper adjusting portion 68 through the connecting frame 22.

In addition, the tungsten electrode 18 and the wire 12e can be moved forward or backward by adjusting the front and rear movement adjusting unit 67, and the tungsten electrode 18 and the wire (by adjusting the shank movement adjusting unit 68). The height of 12e) can be adjusted.

The weaving means 71 is provided at the lower portion of the elevating body 20 and moves the distance adjusting means 64 to the left and right to weave the tag torch 23 and the wire 12e to the left and right.

Specifically, the weaving means 71 of the weaving part 73, the weaving part 73 and the distance adjusting means 64 repeatedly moved to the left and right by the operation of the weaving motor 72, the weaving motor 72. It is composed of a connecting portion 69 for connecting the body (65). As the weaving motor 72 is repeatedly operated left and right, the weaving part 73 comes out to the left and then enters to the right, and thus the tungsten electrode 18 and the wire 12e weave the welding part left and right. Weld

The control unit 21 controls the distance adjusting means 64 to adjust the distance between the tungsten electrode 18 and the wire 12e and the welded portion, and to control the weaving means 71 to control the tig torch 23 and the wire 12e. Weaving left and right.

Referring to FIG. 13, a shoe 14 is used as described above when the TIG welding of the thick iron plate 1 is performed. In order to solve the problems of the prior art, the TIG welding is carried out step by step over several passes, and in the first step (a), the deepest portion of the welded portion is welded using the shoe 14 deepest in the welded portion. Weaving the remaining space occupied by the shoe 14 using the weaving means 71 while weaving the TIG torch 23 and the wire 21e to the left and right. After the welding is completed in step (a), a second TIG welding is performed using shoes 14 of different sizes. At this time, the tungsten electrode 18 and the wire 12e, which went deep in the front, should move slightly backward. The distance adjusting means 64 moves the tungsten electrode 18 and the wire 12e to the rear. In the step (b), the tungsten electrode 18 and the wire 12e are moved slightly rearward by the distance adjusting means 64, and the shoe 14 used is also located at the welded portion than the shoe 14 used in the step (a). Relatively less inserted. After the tungsten electrode rod 18 and the wire 12e are moved backward by the distance adjusting means 64, the tig torch 23 and the wire 12e are welded while weaving the left and right sides using the weaving means 71. In the step (c), the tungsten electrode 18 and the wire 12e are moved slightly further backward by the distance adjusting means 64, and the weaving means 71 is used to turn the tig torch 23 and the wire 12e to the left. Finish the welding, weaving with the right side. The shoe 14 used in step (c) uses a shoe 14 that is not inserted into the welded portion. In the above description, a method of welding in three stages of a, b, and c is described, but the present invention is not limited thereto, and the shoe 14 may be further varied in stages.

Thus, in consideration of the heat input, the shoe 14 is manufactured in various types and used for welding, and the distance adjusting means 64 controls the distance between the tungsten electrode 18 and the welding portion in each step and weaving means ( 71) by welding while weaving left and right, it is possible to obtain a smooth welding shape, and there is no trouble in the equipment, so that the failure does not occur and the welding efficiency can be improved.

When the lifting body 20 rises on the first rail 42a, the shoe 14 ascends in a state in which it is in close contact with the welding site. When the welding is finished while rising from the bottom to the top of the iron plate 1, the piston rod 29 is moved to the rear so that the shoe 14 is spaced apart from the weld. The base 2 then moves horizontally on the top of the iron plate 1 by the roller 30 to weld the other part.

The elevating means includes a chain moving tube 57 vertically installed inside the base 2, a lift guide 52 attached to one side of the chain moving tube 57, and a plurality of guides movable up and down along the lift guide 52. A first sprocket (50) attached to the rollers (60a, 60b, 60c, 60d), the plurality of guide rollers (60a, 60b, 60c, 60d), and provided at a lower portion of the lift (50) and the chain moving tube (57). 54a), the motor 53 for driving the first sprocket 54a, the second sprocket 54b and the first sprocket 54a and the second sprocket 54b provided on the upper portion of the chain moving tube 57 are engaged with the motor. It moves up and down by driving 53, penetrates through the chain moving tube 57, one end is connected to the upper end of the lift 50, the other end is connected to the lower end of the lift 50, the lift ( And a chain 56 to move 50 up and down.

The lift 50 is coupled to the back plate and the bottom plate by the hinge 59 so that when the operator does not use the lift 50, the bottom plate is overlapped with the back plate so that the bottom plate does not fall forward by using the fasteners. Can be. In this way, the space inside the base 2 can be used efficiently.

5 to 7, guide rollers 60a, 60b, 60c, and 60d moving up and down while rotating along a plate-shaped lift guide 52 attached to the chain moving tube 57 are placed on the left and right sides. Each one is provided. A central axis is penetrated through each center of the guide rollers 60a, 60b, 60c, and 60d, and one end of the central axis is coupled to the back plate of the lift 50, so that the guide roller can rotate smoothly when the lift 50 is moved up and down. have.

Chain 56 is connected to the top and bottom of the back plate, the lift 50 is stably by the guide roller (60a, 60b, 60c, 60d) when the chain 56 is moved up and down by the drive of the motor 53 I can move it.

In addition, the elevating means further includes take-up means (80, 81) are axially connected to the second sprocket (54b) provided on the upper portion of the chain moving tube (57), one on each side.

5 and 8, the take-up means 80 includes a screw 80d, a handle 80b for rotating the screw 80d, a bolt 80c for fixing the position of the screw 80d, and a second sprocket. It consists of a bearing 80f which couples to the outer surface of the shaft 80g of 54b, the bearing housing 80e, and the body 80a which receives the bearing housing 80e and the screw 80d.

If the chain 56 is loosened by using the lift 50 for a long time, turn the handle 80b of the take-up means 80 and 81 to adjust the height of the bearing housing 80e to which the shaft 80g is coupled. Deflection of (56) can be prevented.

When the roller 30 moves horizontally on the upper end of the iron plate 1, the lower part of the base 2 rotates along the iron plate 1 on both sides of the lower side of the base 2 so as to move without hitting the iron plate 1. It further includes a lower support roller having wheels 34d and 35d. The lower support roller moves the rods 34c and 35c forward by the rotation of the screws provided in the screw bodies 34a and 35a, so that the wheels 34d and 35d attached to the rods 34c and 35c are attached to the steel plate 1. When the base 2 moves horizontally using the roller 30, the lower portion of the base 2 helps to move smoothly without hitting the iron plate 1.

When the TIG welding means welds the welded portion of the iron plate 1, the electromagnets 11a and 11b and the electromagnets 11a and 11b which are provided under the base 2 to tightly fix the base 2 to the iron plate 1. ) Further includes cylinders 10a and 10b for moving the iron plate 1 in the direction opposite thereto.

If the lower support roller is required for horizontal movement of the body 2, the electromagnets 11a and 11b and the cylinders 10a and 10b will hold the body 2 firmly in place when the body 2 welds the weld. It is necessary to make it. The electromagnets 11a and 11b and the cylinders 10a and 10b are provided at the lower left and right sides of the base 2, respectively, and are connected to the cylinders 10a and 10b by the reciprocating motion of the cylinders 10a and 10b. , 11b) may move in the direction of the iron plate 1 or vice versa, and when welding the welding site, the electromagnets 11a, 11b move in the direction of the iron plate 1 and are attached to the iron plate 1, and the base 2 ) Moves horizontally using the roller 30, the electromagnets 11a and 11b fall off the iron plate 1.

It further includes a ladder (7a, 7b) provided on the inner side of the base (2) to enable the worker to move to the opposite side of the iron plate (1). The worker moves to the opposite side of the iron plate 1 by using the ladders 7a and 7b, installs the back shoe 15 on the opposite side of the welded part of the iron plate 1, and uses the back shoe support 17 and the bracket 16. Can be fixed firmly. After the installation of the back shoe (15) can be moved back to the other side of the iron plate (1) to proceed with the welding work.

A vertical moving tag automatic welding method using the vertical moving tag automatic welding device 100 and various types of shoes will be described.

First, when welding the welding part of the object to be welded using a TIG welding means, the front of the shoe 14 is pushed to support the first type of shoe inserted into the welding part by a first length, and then welded with the front of the first type shoe. Weld the empty space between objects

Next, the front of the shoe 14 is pushed to support the second type of shoe inserted into the welded portion by a second length shorter than the first length, and then the front of the second type of shoe and the first type of shoe. Weld the empty space between welded objects.

Referring to FIG. 13, step (a) is to start welding for the first time, and the back shoe 15 is inserted into the opposite side of the welding portion of the iron plate 1 and is supported by using the bracket 16. Then, the first type of shoe 14 having the longest length is pushed in and supported, and then welded. At this time, the welding while weaving to the left and right by using the weaving means, as shown in Figures 2 to 12.

After the welding in step (a) is completed, in step (b), the second type of shoe 14 inserted into the welding portion is inserted into the welding part instead of the shoe used in step (a), and then supported by using the weaving means. Weld while weaving left and right. For the welding of step (b), the tungsten electrode and the welding wire should be moved slightly backward, but the tungsten electrode and the wire can be moved backward by using the distance adjusting means.

After the welding in step (b) is completed, in step (c), the remaining part after welding in step (b) is welded, and another type of shoe 14 is used. Slightly move and weld while weaving left and right using weaving means. The shoe used in step (c) uses another type of shoe 14 that is not inserted into the weld.

After welding the welded portion of the iron plate 1 through a plurality of steps (multiple passes), the TIG welding means is raised, and the plurality of steps are repeated and welded. While welding through a plurality of steps is to move vertically to the top of the iron plate (1).

As described above, a smooth weld shape can be obtained by welding using different types of shoes 14 for each step.

After welding the front part of the iron plate 1, the back part is also welded using the same method as the above.

When welding the rear part of the iron plate 1, since the welding part of the front part of the iron plate 1 is already completed, it is not necessary to insert the back shoe 15 and to support it using the bracket 16. . As in the case of the welding in the steps (a), (b), and (c) above, the shoe 14 of different types is pushed in and supported, and then welded while weaving to the left and right by using the weaving means, and the welding in the next step To do this, move the tungsten electrode and the welding wire back slightly by using the distance adjusting means and then weld.

In the above (a). In the case of welding using three types of shoes in three steps of (b) and (c), the present invention is not limited thereto, but the steel plate 1 may be thin in two steps. In the case where the iron plate 1 is thick, welding may be performed in three or more steps.

According to the present invention, when reaching the welding site while moving horizontally along the upper end of the welding target, the TIG torch rises vertically along the welding site after stopping at the corresponding position, and automatic welding is possible, thereby obtaining a convenient and uniform welding effect. .

In addition, the operator can be welded while moving along the Tig torch to rise vertically in the lift means can be quite convenient and increase the welding efficiency.

In addition, by using a shoe made of various types in consideration of the heat input amount, the welding part can be tig welded step by step over several passes to obtain a smooth welding shape and improve welding efficiency.

In addition, when welding using the TIG torch, the welding material is welded between the back shoe installed at the rear of the iron plate and the shoe mounted at the front, so that the influence of external wind can be minimized, and the welding material does not flow out, ideal welding You can make a shape.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by those skilled in the art without departing from the gist of the present invention as claimed in the claims. Of course, it is obvious that such changes will fall within the scope of the claims.

Claims (15)

1. It is a vertical moving TIG automatic welding device that vertically raises the welding part of the welding object and performs TIG welding.

   gas;

   An upper frame installed in a transverse direction above the gas;

   A roller coupled to a lower surface of the upper frame and horizontally moving an upper end of a welding object;

   A lower plate installed at a lower end of the gas;

   Two rails installed vertically in the gas and positioned side by side at a predetermined distance apart from each other;

   TIG welding means for vertically moving along the two rails, welding the welding portion of the welding object; And

   Vertically moved TIG automatic welding device, characterized in that it is installed inside the body to move vertically, the lifting means capable of a person.
2. The method of claim 1,

   The lower and lower plates of the base are divided into two to form a separation space, and the vertical moving TIG automatic welding device, characterized in that to accommodate the welding object through the separation space inside the gas.
3. The method of claim 2,

   The roller is coupled to the left and right of the lower surface of the upper frame one by one,

   The two rollers are vertically moved by the automatic welding apparatus for moving vertically seated on the top of the welding object accommodated into the body through the space to move horizontally.
4. The method of claim 1,

   A plurality of first vertical frames positioned on the right side of the body and installed vertically between the upper frame and the lower plate; And

   A plurality of second vertical frames positioned on the left side of the body and installed vertically between the upper frame and the lower plate,

   Each vertical frame constituting the first vertical frame and the second vertical frame includes an upper vertical frame and a lower vertical frame having a plurality of holes at regular intervals along a length direction of the frame, and a lower portion of the upper vertical frame is Vertically coupled to the inside of the vertical frame, vertical vertical movement automatic welding apparatus characterized in that the height of the gas is adjusted by adjusting the position of the portion coupled by the pin through the holes formed in the upper vertical frame and the lower vertical frame.
5. The method of claim 1,

   Located in the body and located side by side apart from the vertical frame for the first guide and the vertical frame for the first guide vertically installed between the upper frame and the lower plate and a second guide for vertically installed between the upper frame and the lower plate Further includes a vertical frame,

   The two rails are composed of a first rail and a second rail. The first rail has a sawtooth shape with teeth formed on both sides of the rail, the second rail has a slidable plate shape, and the sawtooth first rail has a lower portion. The vertical movable tag automatic welding, which is attached to the vertical frame for the first guide by using an electromagnet attached, and the plate-shaped second rail is attached to the vertical frame for the second guide by using an electromagnet attached to the lower part. Device.
6. The method of claim 5,

   The tag welding means

   A lifting body provided with a gear that vertically moves on the serrated first rail and a motor for driving the gear;

   A control unit which vertically moves on a plate-shaped second rail and is connected to the lifting body through a connecting frame to move together during vertical movement of the lifting body and controls the driving of the lifting body;

   A torch connected to the elevating body and moving together during vertical movement of the elevating body to weld the welding part of the welding object;

   A feeding cable connected to the elevating body and moving together when the elevating body is vertically moved to supply a wire;

   Shoe contact means installed on the connection frame and movable back and forth; And

   It is connected to the shoe close means, vertical moving tag automatic welding device comprising a shoe support coupled to the shoe.
7. The method of claim 6,

   Distance adjusting means for adjusting a distance between the wire supplied from the tungsten electrode rod and the feeding cable of the TIG torch and the welding part of the welding object; And

   The weaving means is provided on the lifting body further comprises a weaving means for weaving the torch and the wire to the left and right by moving the distance adjusting means to the left and right,

   The control unit controls the distance adjusting means to adjust the distance between the tungsten electrode and the wire and the welding portion, and the weaving means to control the weigeig and wire vertically moving automatic welding apparatus, characterized in that weaving to the left and right.
8. The method of claim 1,

   The lifting means

   A chain moving tube installed vertically inside the body;

   A lift guide attached to one side of the chain moving tube;

   A plurality of guide rollers movable up and down along the lift guide;

   A lift attached to the plurality of guide rollers to move up and down;

   A first sprocket provided at a lower portion of the chain moving tube;

   A motor for driving the first sprocket;

   A second sprocket provided on an upper portion of the chain moving tube; And

   A chain that engages with the first sprocket and the second sprocket and moves up and down by driving the motor, penetrates the chain moving tube, and one end is connected to the top of the lift and the other end is connected to the bottom of the lift to move the lift up and down according to the driving of the motor. Vertical moving teagg automatic welding device comprising a.
9. The method of claim 8,

   The lifting means

   Vertically moving tag automatic welding device further comprises a take-up means which is axially connected to the second sprocket provided on the upper portion of the chain moving tube provided on each side one by one.
10. The method of claim 1,

    When the roller horizontally moves the upper end of the welding object, the lower support roller further comprises a wheel that rotates along the welding object on both sides of the lower portion of the base to move without hitting the welding object,

    The lower support roller is a vertical moving Tig automatic welding device, characterized in that the wheel attached to the rod to support the welding object by moving the rod forward by the rotation of the screw.
11. The method of claim 1,

    When the welding means to weld the welding portion of the welding target, characterized in that it further comprises an electromagnet provided in the lower portion of the base to fix the base tightly to the welding target and the electromagnet to move in the direction of the welding target or vice versa Vertical Tig Automatic Welding Machine.
12. The method of claim 1,

    It is provided on the inner side of the gas vertical movement Teague automatic welding device further comprises a ladder to enable the worker to move to the opposite side of the welding object.
13. A vertical moving tag automatic welding method using the vertical moving tag automatic welding device according to any one of claims 1 to 12 and various types of shoes,

    When welding the welding part of the welding object by using the TIG welding means, the front of the shoe is pushed to support the first type of shoe inserted into the welding part by a first length, and thereafter, the bin between the front of the shoe of the first type and the welding object. A first step of welding the space; And

    A blank between the front of the second type of shoe and the welded object welded using the first type of shoe after the shoe is pushed in and supported by the second type of shoe inserted into the welding site by a second length shorter than the first length. And a second step of welding the space.
14. The method of claim 13,

    In the first step of welding, the backshoe is pushed into the opposite side of the welding object welding part, and the vertical movement TIG automatic welding method characterized in that the welding after supporting the backshoe using a bracket.
15. The method of claim 13,

    After the welding of the welded portion of the welding object through the first step and the second step, the vertical welding tag automatic welding method characterized in that the first step and the second step is repeated after raising the welding means.

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