KR101265184B1 - Auto-welding machine with hybrid motion torch - Google Patents

Abstract

The present invention relates to an automatic welding device including a torch for hybrid movement, and more particularly, to an automatic welding device in which the horizontal moving mechanism of the torch is composed of a linear direction and a pendulum direction moving mechanism. The automatic welding device of the present invention can effectively melt / melt when the two-stage improvement angle or the improvement angle is small.

Description

Automatic welding device including a torch for hybrid motion {Auto-welding machine with hybrid motion torch}

The present invention relates to an automatic welding device including a torch for hybrid movement, and more particularly, to an automatic welding device in which the horizontal moving mechanism of the torch is composed of a linear direction and a pendulum direction moving mechanism.

As a prior art related to the welding angle control of the torch for improving the welding quality, in the case of the registration room 20-0344429 (the welding torch angle adjusting device for the welding device), referring to FIG. 13, an operator simply performs the angle adjustment. If the welding torch 1002 maintains the desired angle by rotating the knob 1033 of the drive mechanism 1030, the process is completed. Therefore, it is obvious that the welding torch 1002 is moved by the movement of the slide cover 1021. The slide cover 1021 has a radius of a distance from the adjusting body 1010 to the welding work point as a radius. The torch is moved to the trajectory of, the welding torch 1002 is to be rotated angularly without change of the point (welding point) to be welded (registration publication page 4 lines 42 ~ 43 lines, 53 lines ~ 55 lines).

In addition, the configuration of the registration room 20-0246031 (automatic welding device for adjusting the welding posture), referring to Figure 14, is an automatic welding device for adjusting the welding posture to perform welding work while moving along a specific rail, weld According to the above, the welding posture of the welding torch is changed, so that an excellent weld can be formed. In addition, since the welding torch rotates the welding torch around the welding point in changing the welding posture, there is no separation between the welding part and the welding torch, thereby achieving a constant welding part, thereby reducing welding defects. There is also an effect that can be done (line 8 to line 14 of the publication 7).

In addition to these prior arts, there are two methods of moving the torch across the weld section.

The moving mechanism that moves the torch linearly in the horizontal direction can be welded effectively when the improvement angle is large because the moving width is large.However, when the two-stage improvement angle or the improvement angle is small, the nozzle part of the torch and the improvement surface may collide. have. On the other hand, the moving mechanism for moving the torch like a pendulum can effectively weld the two-stage improvement angle boundary, but if the improvement angle is large, the movement angle is large and the penetration / melting may be poor.

The present invention is to solve the problems of the conventional automatic welding apparatus as described above, an object of the present invention to provide an automatic welding device that provides excellent welding quality even when the two-stage improvement angle or improvement angle is small.

Automatic welding device of the present invention for achieving the above object is a vertical movement mechanism 310 of the torch; Horizontal pendulum direction moving mechanism 110 of the torch; A horizontal linear movement mechanism 210 of the torch.

In addition, the automatic welding device of the present invention is characterized in that the vertical movement mechanism 310 includes a vertical manual movement mechanism 4 for manually adjusting the torch height and a vertical automatic movement mechanism 5 for automatically adjusting the torch height. .

In addition, the automatic welding device of the present invention is characterized in that it further comprises a welding progress direction angle adjustment mechanism of the torch.

In addition, the automatic welding device of the present invention is characterized in that the horizontal pendulum direction moving mechanism 110 and the horizontal linear direction moving mechanism 210 of the torch move in combination with the pendulum direction and the linear direction.

In addition, in the automatic welding device of the present invention, the horizontal pendulum direction moving mechanism 110 of the torch includes a motor 117; A motor fixing plate 115 on which an axial surface of the motor is fixed; A threaded drive shaft 120 connected through a portion of the motor drive plate; A rotation cylindrical shaft connected with the driving shaft and changing the rotational movement of the driving shaft into a linear movement in the direction of the driving shaft; A rotating cylinder (112) for receiving the rotating cylinder shaft and converting linear movement of the rotating cylinder shaft into pendulum motion about a point away from the center of the driving shaft; A torch fixing plate (111) for receiving the rotation cylinder in a relative motion; And a horizontal bar 113 determining a distance between the circumferential goniometer and the torch fixing plate and having a fixed portion rotatably connected to an upper portion of the torch fixing plate in a driving shaft direction.

In addition, in the automatic welding device of the present invention, the horizontal pendulum direction moving mechanism 110 of the torch includes: a circumferential goniometer 121 having a circular lower portion through which the drive shaft passes; A goniometer bracket 122 having a lower portion surrounding the circular lower portion of the circumferential goniometer, a central portion through which the drive shaft passes, and a thickness in the drive shaft direction with respect to the circumferential direction; A hole 127 corresponding to the thickness portion of the upper portion of the goniometer bracket formed at the other end of the horizontal bar; and a manual adjustment bolt penetrating the hole to apply pressure to the thickness portion of the drive shaft direction of the circumferential goniometer ( It characterized in that it further comprises a circumferential moving portion of the torch comprising a 114).

In addition, in the automatic welding device of the present invention, the horizontal linear movement mechanism of the torch includes: a horizontal body 215; A motor 213 positioned at the center of the horizontal body; LM guides 218 respectively positioned on the left and right sides of the horizontal body; An LM block 217 moving on the LM guide; A TM bolt 221 rotated by the motor; A TM nut 222 linearly moving with respect to the rotation of the TM bolt; A nut bracket 214 attached to the TM nut; A TM nut moving guide 212 fixed to an upper portion of the nut bracket and having left and right extensions in the direction of the driving shaft; It is fixed to the extension portion of the TM nut movement guide, it characterized in that it comprises a LM block movement guide 216 coupled to the LM block.

In addition, in the automatic welding device of the present invention, the vertical vertical moving portion 4 and the automatic vertical moving portion 5 of the torch includes a vertical body 319 is coupled, the manual vertical moving portion of the torch ( 4) the manual adjustment bolt 316 to adjust the height by rotation; A manual movement block 315 having a torch attached and moving up and down and having a hole through which the manual adjustment bolt passes; A vertical movement guide 329 including a space in which the manual movement block moves, and having a hole through which the manual adjustment bolt passes; A manual vertical movement guide shaft 324 installed in a space in the vertical movement guide, the manual movement block moving up and down; An LM guide block 330 to which the rear surface of the vertical movable block is fixed; And an LM guide 331 coupled to the vertical body 319 in the longitudinal direction, the LM guide 331 being a track for moving the LM guide block up and down, wherein the automatic vertical moving part 5 of the torch is a motor 314. The front of the motor is fixed to the top toward the bottom, the motor bracket 313 is fixed to the rear of the vertical body 319; TM bolt 326 connected to the shaft of the motor; TM bolt 326 TM nut (312) to move up and down in accordance with the rotation of the; and a vertical movement plate 328 is coupled to the TM nut 312 and connects the TM nut 312 and the vertical movement guide (329) It is characterized by.

The automatic welding device of the present invention can effectively melt / melt when the two-stage improvement angle or the improvement angle is small.

1 is a schematic diagram of a hybrid motion.
Figure 2 illustrates the pendulum movement of the torch.
3 illustrates a horizontal movement of the torch.
4 is a horizontal moving part of the torch.
5 is a sequence of hybrid motion.
6 is an exploded view of the torch mounting portion.
7 is a manual vertical moving unit of the torch.
8 is an automatic vertical moving unit of the torch.
9 is an exploded view of a vertical moving part of the torch.
10 is an angle adjusting device of the torch.
11 is a front perspective view of the automatic welding device of the present invention.
12 is a rear perspective view of the automatic welding device of the present invention.
Figure 13 is a schematic view of a welding torch angle adjustment device of the prior art.
14 is a schematic view of an automatic welding device in which the welding posture of the prior art is adjusted.

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

1 is a schematic diagram of a hybrid motion performed by the present invention. 'Hybrid Motion' in the figure shows that the torch 1 can be efficiently welded to the two-stage improvement angle 2 while moving in the form of a combination of linear movement and pendulum movement.

2 is an example of the horizontal pendulum movement of the torch, which effectively welds the boundary of the deep improvement angle 3. At this time, the torch 1 is connected to the motor 117 by a drive shaft 120 having a thread to implement the pendulum movement of the torch.

FIG. 3 is an illustration of the horizontal movement of the torch, and referring to an exploded view of the horizontal movement of the torch of FIG. 4, a TM nut with a thread inside the hole is moved along the TM bolt 221 driven by the motor 213. 214 is coupled to the nut bracket 222 having a through hole. The LM block movement guide 216 is transferred along the LM guide 218 by the TM nut movement guide 212 attached to this bracket. Accordingly, the torch 1 attached to one end of the LM block movement guide 216 is moved horizontally.

Main parts of the torch's horizontal linear movement mechanism 210 are as follows.

The horizontal body 215 accommodates the motor 213 in the center of the body. LM guides 218 are positioned at left and right sides of the horizontal body, and LM blocks 217 are provided to travel on the LM guides.

When the motor rotates, the TM bolt 221 rotates and the TM nut 222 moves linearly with respect to the rotation of the TM bolt. The TM nut moving guide 212 each having an extension in the driving shaft direction is fixed to the upper portion of the nut bracket 214 attached to the TM nut. The extension part of the TM nut moving guide is coupled to the LM block moving guide 216 which is coupled to the LM block.

The horizontal moving part of the torch, the LM guide 218 is installed on the left and right sides of the horizontal body 215 and the LM block movement guide 216 is coupled to the LM block 217 moving along the LM guide. The left and right LM block movement guides 216 are fixed to the left and right extensions of the TM nut movement guide 212. When the nut bracket 222 is fixed to the central portion of the TM nut movement guide 212 having the two extended portions, the LM block movement guide 216 is rotated by the rotation of the TM bolts 221 interlocked with the rotation of the motor 213. ) Will move back and forth.

5 illustrates the movement sequence of the torch in hybrid motion.

After welding starts from the center of welding position (1), it moves parallel to the left side (left movement) (2), then shifts to the pendulum direction clockwise (3) and reaches the left end. The pendulum moves to the right again (4) and moves horizontally to the right to pass through the center (5), then the pendulum moves to the right (6, counterclockwise) to proceed to the right end. The pendulum is moved to the right side in the reverse order and then horizontally moved (7) to return to the welding center position (8).

6 is an exploded view of the torch mounting portion. It consists of a pendulum moving part and a circumferential moving part of the torch.

The pendulum moving part of the torch is connected to the motor 117 and the drive shaft 120 in series, and the drive shaft 120 is connected to the inside of the rotary cylinder shaft 123. The rotating cylindrical shaft 123 is fixed by the rotating cylinder 112 and the torch fixing plate 111 is moved in the pendulum direction by the rotating cylindrical shaft 123 based on the connecting axis with the horizontal bar 113.

Main parts of the torch's horizontal pendulum direction moving mechanism 110 are as follows.

The motor 117 is fixed to the motor fixing plate 115, the axial surface of the motor.

A portion of the motor drive plate has a through portion formed therein, and a screw shaft driving shaft 120 is connected to the motor through the portion. The drive shaft is connected to the rotation cylindrical shaft 123, the rotational movement of the drive shaft is changed to a linear movement in the direction of the drive shaft. The rotating cylinder 112 accommodates the rotating cylinder shaft 123, and converts the linear movement of the rotating cylinder shaft into a pendulum movement with respect to a point away from the center of the driving shaft.

The rotating cylinder is accommodated in the rotatable cylinder shaft so as to be able to move relative to the torch fixing plate 111 again. The horizontal bar 113 determines a distance between the circumferential goniometer and the torch fixing plate, and has a fixed portion rotatably connected to the upper portion of the torch fixing plate at one end thereof in a driving shaft direction.

The main parts of the torch's circumferential moving part are as follows.

The circumferential goniometer 121 has a circular lower portion through which the drive shaft passes. The goniometer bracket 122 has a lower portion surrounding the circular lower portion of the circumferential goniometer, a central portion through which the drive shaft passes, and a thickness in the drive shaft direction with respect to the circumferential direction. The hole 127 formed at the other end of the horizontal bar is aligned with respect to this thickness part. The manual adjustment bolt 114 penetrates the hole and is fixed by applying pressure to the thickness portion of the circumferential goniometer in the direction of the drive shaft.

The operation of the circumferential moving part is as follows. The lower end of the manual fixing bolt 114 is in contact with the outer circumferential surface of the goniometer bracket 122 through a hole formed in one end of the horizontal bar 113. Tightening the bolt is fixed relative position with the goniometer bracket 122 can adjust the circumferential angle of the torch. When the manual fixing bolt 114 is loosened, the circumferential goniometer 121 (see FIG. 10) is rotatable with respect to the surface of the motor fixing plate 115 whose angle is displayed along the inner circumferential surface of the goniometer bracket 122. And the circumferential angle of the torch 1 mounted on the torch fixing plate 111 may be manually adjusted.

7 shows the operation of the manual vertical movement of the torch. The manual movement block 315 to which the torch 1 is attached by the rotation of the manual adjustment bolt 316 is moved up and down in the vertical movement guide 329 to adjust the position.

The vertical movement mechanism 310 of the torch, which is composed of the manual vertical movement unit 4 and the automatic vertical movement unit 5 of the torch, is coupled to the vertical body 319.

The manual vertical moving part 4 of the torch adjusts the height by the rotation of the manual adjustment bolt 316. The manual movement block 315 is moved up and down with a torch attached, and has a hole through which the manual adjustment bolt passes. The vertical movement guide 329 has a space in which the manual movement block moves, and has a hole through which the manual adjustment bolt passes.

The manual vertical movement guide shaft 324 is installed in the space in the vertical movement guide, and serves as a track in which the manual movement block moves up and down. The LM guide block 330 is fixed to the back of the vertical movable block. The LM guide 331, which is a track in which the LM guide block moves up and down, is longitudinally coupled to the vertical body 319 and accommodates the LM guide block in a movable form.

The main configuration of the automatic vertical moving part 5 of the torch is as follows.

The front surface of the motor 314 is fixed to the upper side of the motor bracket 313, and the rear side of the motor bracket is fixed to the vertical body 319.

The TM bolt 326 is connected to the shaft of the motor, the TM nut 312 moves up and down in accordance with the rotation of the TM bolt 326. The TM nut 312 and the vertical movement guide 329 are coupled to the vertical movement plate 328.

8 shows the automatic vertical movement of the torch. The torch 1 can be automatically moved vertically by the combination of the torch automatic vertical moving part 5 and the torch manual vertical moving part 4 by the vertical moving plate 328. When the motor 314 rotates the TM bolt 326, the torch 1 is automatically moved vertically along the LM guide 331 attached to the rear side of the manual torch moving mechanism part 4 by the vertical movement plate 328. .

9 is an exploded view of the vertical moving part of the torch. The torch manual vertical moving unit 4 and the torch automatic vertical moving unit 5 are attached to the vertical body 319.

Torch manual vertical moving unit 4 is the LM guide 331 is attached to the vertical body 319, the vertical movement guide 329 is coupled to the LM guide block 330 moving along. On the inner front surface of the vertical movement guide 329, the manual movement block 315 to which the torch 1 is attached is built in a vertical movement along the manual vertical movement guide shaft 324, and the left and right sides of the manual adjustment bolt 316 are fixed. Rotation determines the vertical position of the torch.

Torch automatic vertical moving part 5 is the motor bracket 313 is fixed to the vertical body 319, the motor 314 is fixed to the top of the motor bracket 313 so that the axis of the motor is downward, the motor An axis of 314 is connected to a TM bolt 326 that penetrates the TM nut 312 having a thread inside the hole, which moves up and down as the motor rotates. The TM nut 312 is connected to the torch manual vertical moving part 4 through the vertical moving plate 328.

Therefore, the vertical movement mechanism 310 of the torch employs two methods, automatic and manual. When welding thick base materials by manual vertical movement of the torch, the height of the torch 1 can be lowered, and the torch 1 can be automatically adjusted up and down based on this height, so that the height of the vertical movement mechanism can be lowered. On the other hand, the torch vertical position can be efficiently controlled.

FIG. 11 is a perspective view of an automatic welding device including a torch for hybrid movement in which the torch horizontal moving unit, the torch manual vertical moving device, the torch automatic vertical moving device, and the torch manual vertical moving device are installed.

Operation of the automatic welding device of the present invention can be performed by a microprocessor, a PC and the like.

As described above, the present invention has been described with reference to specific embodiments, but is not necessarily limited thereto, and modifications and variations may be made without departing from the spirit of the present invention. For example, in addition to the automatic welding device which runs along the circumferential surface of the pipe of FIG. 11, it can be used also for the automatic welding device which moves linearly.

1: torch 2: two step angle
3: deep improvement angle 4: torch manual vertical moving part
5: torch automatic vertical moving unit 110: horizontal pendulum moving mechanism of the torch
111: torch fixing plate 112: rotary cylinder
113: horizontal bar 114: manual fixing bolt
115: motor fixing plate 1151: angle scale
116: bolt 117: motor
118: motor cover 119: ring
120: drive shaft 121: circumferential goniometer
122: goniometer bracket 123: rotating cylinder shaft
124: rotating cylinder cover 125: parallel pin_A
126: parallel pin_B 127: hole
210: horizontal linear movement mechanism of the torch 211: motor pressure plate
212: TM nut movement guide 213: motor
214: TM nut 215: horizontal body
216: LM block movement guide 217: LM block
218: LM Guide 219: Limit Switches
220: motor bracket 221: TM bolt
222: nut bracket 223: bearing
224: bearing bracket 310: vertical movement mechanism of the torch
311: Motor cover 312: TM nut
313: motor bracket 314: motor
315: manual movement block 316: manual adjustment bolt
317: LM guide fixing bolt_A 318: LM guide bracket_A
319: vertical body trunk 320: vertical body fixing bolt
321: limit switch 322: LM guide fixing bolt_B
323: LM guide bracket_B 324: Manual vertical shift guide shaft
325: nut 326: TM bolt
327: bearing 328: vertical moving plate
329: vertical movement guide 330: LM guide block
331: LM guide 1001: driving cart
1002: welding torch 1003: holder
1010: adjusting body 1011: bracket
1012: drive window 1021: slide cover
1030: drive mechanism 1031: screw shaft
1033: Knob 1041: Guide surface
1042: guide roller 2050: rail
2060: welding torch 2110: roller
2220: rack gear 2331: clamp base
2333: tightening nut 2335: adjusting bolt
2343: third motor

Claims (8)

Vertical movement mechanism 310 of the torch;
Horizontal pendulum direction moving mechanism 110 of the torch;
A horizontal linear movement mechanism of the torch,
The horizontal pendulum direction movement mechanism 110 of the torch
Motor 117;
A motor fixing plate 115 on which an axial surface of the motor is fixed;
A threaded drive shaft 120 connected through a portion of the motor drive plate;
A rotation cylindrical shaft connected with the driving shaft and changing the rotational movement of the driving shaft into a linear movement in the direction of the driving shaft;
A rotating cylinder (112) for receiving the rotating cylinder shaft and converting linear movement of the rotating cylinder shaft into pendulum motion about a point away from the center of the driving shaft;
A torch fixing plate (111) for receiving the rotation cylinder in a relative motion;
A circumferential goniometer 121 having a circular lower portion through which the drive shaft passes; And
Automatic welding characterized in that it determines the distance between the circumferential goniometer and the torch fixing plate, the horizontal bar 113 having a fixed portion rotatably connected to the top of the torch fixing plate in the direction of the drive shaft. Device. The method of claim 1,
Automatic welding device, characterized in that the vertical movement mechanism 310 includes a vertical manual movement mechanism (4) for adjusting the torch height manually and a vertical automatic movement mechanism (5) for automatic adjustment. The method of claim 1,
Automatic welding device further comprises a torch welding direction angle adjustment mechanism. The method of claim 1,
The horizontal pendulum direction moving mechanism (110) of the torch and the horizontal linear direction moving mechanism (210) of the torch move in combination with a pendulum direction and a linear direction. delete The method of claim 1,
Horizontal pendulum direction moving mechanism 110 of the torch,
A goniometer bracket 122 having a lower portion surrounding the circular lower portion of the circumferential goniometer, a central portion through which the drive shaft passes, and a thickness in the drive shaft direction with respect to the circumferential direction;
A hole 127 corresponding to a thickness portion of the upper portion of the goniometer bracket formed at the other end of the horizontal bar; and
And a circumferential moving part of the torch including a manual adjustment bolt (114) for applying pressure to the thickness portion of the drive shaft direction of the circumferential goniometer through the hole. The method of claim 1,
The horizontal linear movement mechanism of the torch
Horizontal body 215;
A motor 213 positioned at the center of the horizontal body;
LM guides 218 respectively positioned on the left and right sides of the horizontal body;
An LM block 217 moving on the LM guide;
A TM bolt 221 rotated by the motor;
A TM nut 222 linearly moving with respect to the rotation of the TM bolt;
A nut bracket 214 attached to the TM nut;
A TM nut moving guide 212 fixed to an upper portion of the nut bracket and having left and right extensions in the direction of the driving shaft;
It is fixed to the extension portion of the TM nut movement guide, automatic welding device comprising a LM block movement guide 216 is coupled to the LM block. The method of claim 2,
A vertical body 319 to which the manual vertical moving part 4 and the automatic vertical moving part 5 of the torch are coupled;
The manual vertical moving part 4 of the torch
Manual adjustment bolt 316 to adjust the height by rotation;
A manual movement block 315 having a torch attached and moving up and down and having a hole through which the manual adjustment bolt passes;
A vertical movement guide 329 including a space in which the manual movement block moves, and having a hole through which the manual adjustment bolt passes;
A manual vertical movement guide shaft 324 installed in a space in the vertical movement guide, the manual movement block moving up and down;
An LM guide block 330 to which the rear surface of the vertical movement guide is fixed; And
It is longitudinally coupled to the vertical body 319, and includes an LM guide (331) that is a track that the LM guide block moves up and down,
The automatic vertical moving part 5 of the torch
Motor 314;
The front of the motor is fixed to the top facing downwards, the motor bracket 313 is fixed to the rear of the vertical body 319;
A TM bolt 326 connected to the shaft of the motor;
TM nut 312 to move up and down in accordance with the rotation of the TM bolt 326; And
The TM nut (312) is coupled to the automatic welding device, characterized in that it comprises a vertical movement plate (328) for connecting the TM nut (312) and the vertical movement guide (329).

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