KR20100104083A - High speed oscillation welding carriage - Google Patents

Abstract

PURPOSE: A high-speed oscillation arc welding device is provided to maintain the optimal welding condition by setting the optimal amplitude through an amplitude regulator. CONSTITUTION: A high-speed oscillation arc welding device comprises a trolley(100), a holder(300), an oscillation unit(400), and a position fixing unit(500). The trolley moves with a power unit and drive wheels on a weld surface(700). The holder detachably couples a torch(200) to the trolley. The oscillation unit converts the torque of a motor(410) into an angular motion of a specified range and transmits the angular motion to the holder. The position fixing unit adjusts the vertical and horizontal positions and the swing position of the oscillation unit mounted on the trolley.

Description

High speed oscillation welding carriage

The present invention relates to a welding apparatus, and more particularly, to a high-speed vibration arc welding apparatus in which the oscillation portion for amplitude of the torch tip during welding is installed in a simple structure at a position separate from the heating portion of the welding apparatus.

In general, welding is a job of supplying a high voltage to the electrode core and the base material to combine the base metal and the base material of the iron, melting the core material or a portion of the base material to form a bead, and the base material and the base material to be firmly combined.

Among the above-mentioned welding, especially for welding of large structures such as ships or buildings, the length of the welding work is very long, so that it is very difficult for the operator to carry out the welding work while moving in a long section, which requires work by an automated welding device. .

Such a welding device is a torch (1) for moving the work section (L) as shown in Figure 1, and a torch mounted on the traveling cart (1) to form a bead in the line to be welded to join the base material ( It consists of the torch part 2 in which T) was mounted.

The driving cart 1 is provided with a power mechanism 4 composed of a power generating means and a power transmitting means inside the body 3, and the power transmitting means is provided with an external wheel 5 (or a work section). If there is work, the rollers are installed) so that the traveling cart 1 can move the work section.

The torch part 2 is mounted on one side (mainly upper side) of the body 3, and the mounted position is mainly installed in the center of the body 3 to maintain the balance when the welding operation is performed.

The welding device configured as described above is provided in the work section L, and the wheel is driven by driving the power mechanism 4 inside the traveling cart 1 in a state where the end of the torch T is positioned to match the welding line L. FIG. (5) is rotated to proceed the body 3, at the same time torch (T) to generate an arc to perform the automatic welding operation.

At this time, the welding torch is a device that heat-melts a welding core material in order to bring the member into close proximity to the member and form a welding bead between them. A structure for weaving the end of the core material to be melted in order to be formed in a predetermined width has been proposed.

The welding apparatus having the configuration of such a concept has been disclosed in the high-speed arc welding apparatus of Patent Registration No. 1991 ?? 0007174 (1991. 09. 19), which has been patented and registered in Korea.

In addition, a torch is disclosed in which a weavable configuration is installed in a rotary arc generator having a hollow shaft motor of Patent Registration No. 10 ?? 0236916 (October 05, 1999), which has been patented and registered in Korea. have.

However, such prior art welding apparatus has a problem that the durability of the weaving device is significantly lowered due to the heat generated by the equipment itself.

In addition, the weaving welding device of the prior art has a problem that can not be used by mounting on the pre-populated welding device because it has to use a dedicated carriage and welding torch.

The present invention devised to solve the problems of the prior art has the following object.

First, an object of the present invention is to provide a welding device in which the oscillation part for amplitude of the torch tip during welding is installed in a simple structure at a position separate from the heating part of the welding device.

Second, an object of the present invention is to provide a welding apparatus having an oscillation unit structure of a simple structure that can be easily applied to the existing diffusion welding apparatus.

Third, it is an object of the present invention to provide a welding apparatus having an oscillation structure with easy amplitude adjustment at the torch tip.

Fourth, an object of the present invention is to provide a welding device having a structure of a position fixing portion to easily change the welding position of the torch.

The present invention having the above object has the following constitution.

The high speed vibration arc welding device of the present invention includes a traveling cart having power means and a driving wheel for moving a welding work surface; A holder for engaging the torch in a detachable state to the running cart; An oscillation unit configured to axially couple the holder in a state capable of rotating the shaft up and down, and convert the rotational power of the motor into an angular movement in a predetermined range so as to be transmitted to the holder; And a position fixing part capable of adjusting front, rear, up and down positions and swing positions in a state in which the oscillation part is mounted on the driving balance.

The driving balance unit, a traveling gas; Power means installed in the traveling body and operated by input power; A drive wheel driven by the power means; A traveling guide extending from the traveling body to a welding work surface; And a guide roller coupled to the end of the driving guide and rolling on the welding work surface.

The oscillation unit, a motor coupled to the position fixing; And an angular motion conversion unit coupled to the axial direction of the motor and configured to convert a rotational motion of the motor shaft into a cam motion, and convert the cam motion into an angular motion of the link and transmit the cam motion to a holder.

The angular motion conversion unit, the case coupled to the motor; An eccentric cam coupled to a motor shaft inside the case; A cam bearing coupled to the outer periphery of the rotational direction of the eccentric cam; A first link having one end coupled to the cam bearing so that the other end is angularly moved from the center axis; Amplitude adjusting means hinged to change the position of the central axis of the first link; A second link having one end hinged to and coupled to the other end of the first link; And an angular motion output shaft which is coupled to the other end of the second link and is angularly moved in a predetermined range.

The first link may include a cam coupling end having a cam bearing hole having a long hole shape, the cam bearing being axially coupled to guide the cam bearing to move within a rotation radius when the eccentric cam is rotated; A hinge coupling end extending a predetermined length from the cam coupling end; An amplitude adjustment means is hinged between the cam coupling end and the hinge coupling end to guide the slide shaft in the long hole shape.

The amplitude adjusting means includes a variable hinge hinge hinged to move the central axis in the slide groove of the first link; And an amplitude adjusting knob coupled to the variable position hinge to move the variable position hinge in the axial direction when the screw is rotated.

The position fixing portion is coupled to the upper portion of the traveling body horizontal axis displacement portion for adjusting the position by moving the oscillation portion in the horizontal direction; A swing shaft displacement unit which is coupled to an upper side of the horizontal shaft displacement unit and moved forward and rearward, and which is adjusted by positioning the oscillation unit left and right in a horizontal direction; And a vertical shaft displacement unit coupled to the swing end of the swing shaft displacement unit to adjust the position by moving the oscillation unit up and down.

The present invention having the above configuration has the following effects.

First, the present invention has a structure in which the oscillation unit is installed in a separate position from the heating unit of the welding device, there is no problem in the heat generation has a good durability effect, the configuration of the oscillation unit is simple, even in the existing welding device It is easy to apply and install, so it can be used for general purpose and has low installation cost.

Second, the present invention can set the optimum amplitude condition by the amplitude adjustment means formed in the oscillation portion has the effect of maintaining the welding state at the best.

Third, the present invention is a structure that can easily change the welding position of the torch by using the position fixing portion, the welding work on the welding work surface having a variety of angles and shape conditions can be easily performed to improve the work efficiency Has

Fourthly, the present invention not only enables the welding tip of the torch to move at high speed, but also allows the welding speed to be accelerated, and by simply adjusting the amplitude range, the formation range of the welding bead can be adjusted freely or widely. Have

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

2 is a plan view of the high speed vibration arc welding apparatus according to the present invention, Figure 3 is a front view of the high speed vibration arc welding apparatus according to the present invention, Figure 4 is a rear view of the high speed vibration arc welding apparatus according to the present invention, 5 is a left side view of the high speed vibration arc welding apparatus according to the present invention.

As shown in the figure, the present invention provides a traveling cart 100 with a power unit 120 and a driving wheel 130 for moving the welding work surface 700, and the traveling cart 100 on the driving cart 100. The holder 300 for coupling the cut 200 to a detachable state and the holder 300 are axially coupled in a state in which the holder 300 is rotatable, and the rotational power of the motor 410 is converted into a range of angular motion. The oscillation unit 400 and the oscillation unit 400 mounted on the travel cart 100 to adjust the front, rear, up, down and swing positions. It is composed of a position fixing part 500.

Looking at the configuration of the running cart 100, the traveling body 110 is made of a rectangular enclosure is provided, the power means 120 is operated in the traveling body 110 is operated by the input power, The driving wheel 130 is driven by the power means 120 to drive.

At this time, the power means 120 may be connected to the sprocket and the chain by the rotational power of the motor (not shown) to be transmitted to the drive wheel.

The traveling cart 100 is driven along the welding work surface 700, and the travel guide 140 and the upper travel guide 140 extending from the travel body 110 to the welding work surface 700. The guide roller 150 is coupled to the end to maintain a constant distance to be able to run stably. At this time, the guide roller 150 is in contact with the welding working surface 700 is made of rolling motion.

Next, looking at the configuration of the position fixing part 500, the horizontal axis displacement unit 510 is coupled to the upper portion of the traveling gas 110 to adjust the position by moving the oscillation unit 400 in the horizontal direction, and; A swing shaft displacement unit 520 coupled to an upper side of the horizontal axis displacement unit 510 and moved forward and backward, and swinging the oscillation unit 400 horizontally in a horizontal direction to adjust a position thereof; Is coupled to the swing end of the portion 520 is composed of a vertical axis displacement portion 530 to adjust the position by moving the oscillation portion 400 up and down.

In this case, the horizontal shaft displacement unit 510 is coupled to the horizontal axis fixed block 511 is fixed to the upper surface of the traveling body 110, the horizontal axis fixed block 511 in a slidable state is moved horizontally moving block 513, the horizontal axis moving block 513 and the handle side is coupled to the idle rotation, the horizontal axis adjusting knob for screwing to the horizontal axis fixed block 511 to move the horizontal axis moving block 513 together with the screw ( 515).

In addition, the swing shaft displacement unit 520 is coupled to the shaft base 521 is installed in the vertical direction from the upper portion of the horizontal axis moving block 513, and the shaft base 521 to the shaft outer diameter vertical axis displacement portion on one side 530 is coupled to the shaft clamp 523 is configured.

The vertical axis displacement unit 530 is coupled to one side of the shaft clamp 523, the vertical axis fixed block 531, the vertical axis fixed block 531 is coupled to the vertical axis movable block 533 is moved up and down. ), And the handle side is coupled to the vertical movement block (533) to be idling, and the vertical axis adjustment knob (535) is screwed to the vertical axis fixed block (531) to move the vertical axis movement block (533) together with the screw rotation. And a motor clamp 537 coupled to one side of the vertical axis moving block 533 to mount the motor 410 of the oscillation unit 400.

Hereinafter, the configuration and operation principle of the oscillation unit 400 will be described in more detail with reference to FIGS. 6 to 9.

Figure 6 is an enlarged cross-sectional view for explaining the structure of the oscillation unit of the present invention.

Looking at the configuration of the oscillation unit 400 as shown in the figure, the motor 410 is coupled to the position fixing part 500, and the angular motion converter 420 is coupled to the axial direction of the motor 410 It consists of.

The angular motion conversion unit 420 is configured to convert the rotational motion of the motor shaft 411 into a cam motion, and converts the cam motion into an angular motion of the link to be transmitted to the holder 300.

Looking at the configuration of the angular motion converter 420 in more detail, the case 421 is coupled to the motor 410 is provided, the motor shaft 411 and the eccentric cam 422 inside the case 421 It is axially coupled, the chem bearing 423 is coupled to the outer periphery of the rotation direction of the eccentric cam 422, the chem bearing 423 and the first link 424 is coupled.

In this case, the first link 424 has a structure in which one end is coupled to the chem bearing 423 and the other end is angularly moved from the center axis, and the detailed configuration is such that the chem bearing 423 is axially coupled to the eccentric cam ( Cam coupling end 424a, which has a cam hole 424b having a long hole shape, which guides the cab bearing 423 to be moved within the rotation radius during rotation of the 422, and a predetermined length from the cam coupling end 424a. A long slot-shaped slide groove 424c which is extended between the extended hinge coupling end 424d and the cam coupling end 424a and the hinge coupling end 424d so that the amplitude adjustment means 425 is hinged to guide the central axis to be moved. ).

The first link 424 is hinged by the amplitude adjusting means 425 so that the position of the central axis is variable. Referring to the amplitude adjusting means 425, the slide groove (1) of the first link 424 is described. A variable hinge 425a is coupled to move the central axis within 424c, and an amplitude adjustment knob 425b is screwed to the variable hinge 425a to axially move the variable hinge 425a when the screw is rotated. ) Is installed on the case 421 side.

The operation of the amplitude adjusting means 425 will be described with reference to Figs.

7 and 8 are schematic diagrams illustrating an interlocking structure of an eccentric cam and a first link for explaining the angular motion of the oscillation unit of the present invention, and FIG. 7 is a variable position hinge by an operation of the amplitude adjusting means 425 ( The center axis of 425a is shown to have moved to the left, and FIG. 8 shows the state which the center axis of the variable-length hinge 425a has moved to to the right.

As shown in the figure, as the motor shaft 411 rotates, the eccentric cam 422 rotates along the concentric radius of the motor shaft 411.

In this case, a chem bearing 423 capable of idling on the outer circumference of the eccentric cam 422 in the rotational direction is axially coupled, and the cam guide hole 424b of the chem bearing 423 and the first link 424. It is coupled and interlocked, the first link 424 is an angular movement around the variable position hinge 425a is made.

At this time, the cam guide hole 424b of the first link 424 is manufactured to have a long hole shape, in order to compensate for the fluctuation range according to the movement trajectory of the chem bearing 423.

Referring to FIGS. 7 and 8, it can be seen that the angular movement range θ1 of the opposite hinge coupling end 424d around the variable position hinge 425a is greater than θ2. That is, it can be seen that the angular movement range becomes larger as the central axis of the variable position hinge 425a moves closer to the motor shaft 411.

Such changes in the angular motion ranges θ1 and θ2 lead to a linkage action that changes the amplitude at the weld tip of the torch.

9 is a schematic diagram illustrating an interlocking structure of a second link and a holder for explaining the angular movement of the oscillation part of the present invention.

As shown in the figure, the second link 426 has a structure in which a hinge coupling end 426a of one side is interlocked in a hinged state using the first link 424 and the hinge coupling shaft 427.

The angular motion output shaft 428 is coupled to the shaft fixing end 426b of the second link 426 that is interlocked with the first link 424, and the angular motion is controlled by the interlocking action of the second link 426. Will be done.

At this time, the angular motion output shaft 428 is fixed to the shaft using the shaft bearing 428a on the case 421 side.

The angular motion output shaft 428 extends to the outside of the case 421 and is coupled to the holder 300, and the holder 300 is coupled to the torch 200, and the angle of the angular motion output shaft 428. The welding tip of the torch 200 moves in amplitude in association with the movement.

At this time, the amplitude range θ3 can be easily adjusted using the amplitude adjusting means 425.

According to the present invention having the above-described configuration, the welding tip of the torch 200 not only increases the welding speed by high-speed amplitude movement, but also narrowly adjusts the amplitude range to narrow the welding bead formation range. Or freely adjustable.

1 is a plan view showing a welding device structure of the prior art.

Figure 2 is a plan view of a high speed vibration arc welding apparatus according to the present invention.

Figure 3 is a front view of the high speed vibration arc welding apparatus according to the present invention.

Figure 4 is a rear view of the high speed vibration arc welding apparatus according to the present invention.

5 is a left side view of the high-speed vibration arc welding apparatus according to the present invention.

Figure 6 is an enlarged cross-sectional view for explaining the structure of the oscillation unit of the present invention.

7 and 8 are schematic diagrams illustrating an interlocking structure of an eccentric cam and a first link for explaining the angular motion of the oscillation unit of the present invention.

Figure 9 is a schematic diagram showing an interlocking structure of the second link and the holder for explaining the angular movement of the oscillation portion of the present invention.

<Description of the symbols for the main parts of the drawings>

100: driving balance unit 110: driving gas

120: power means 130: drive wheel

140: driving guide 150: guide roller

200: torch 300: holder

400: oscillation unit 410: motor

411: motor shaft 420: angular motion conversion unit

421: Case 422: Eccentric Cam

423: cam bearing 424: first link

424a: cam coupling end 424b: cam guide ball

424c: slad groove 424d: hinged end

425: amplitude adjusting means 425a: variable position hinge

425b: amplitude adjustment knob 426: second link

426a: hinge coupling end 426b: shaft fixing end

427: hinge coupling shaft 428: angular motion output shaft

428a: shaft bearing 500: position fixing

510: horizontal axis displacement portion 511: horizontal axis fixed block

513: horizontal axis shift block 515: horizontal axis adjustment knob

520: rotation axis displacement portion 521: shaft base

523: shaft clamp 530: vertical axis displacement portion

531: vertical axis fixed block 533: vertical axis moving block

535: Vertical adjustment knob 537: Motor clamp

600: control box 700: welding work surface

Claims (7)

A driving cart 100 having a power means 120 and a driving wheel 130 for moving the welding work surface 700; A holder 300 for coupling the torch 200 to the running cart 100 in a detachable state; An oscillation unit 400 configured to axially couple the holder 300 in a vertically rotatable state, and convert the rotational power of the motor 410 into an angular movement in a predetermined range so as to be transmitted to the holder 300; And A position fixing part 500 capable of adjusting front, rear, up and down positions and swing positions in a state in which the oscillation unit 400 is mounted on the driving balance unit 100; High speed vibration arc welding device comprising a. The method of claim 1, The running cart 100, Traveling body 110; Power means 120 is installed in the traveling body 110, the power means 120 is operated by the input power; A driving wheel 130 driven by the power means 120; A traveling guide 140 extending from the traveling body 110 to a welding work surface 700; And A guide roller 150 coupled to the end of the driving guide 140 and rolling on the welding work surface 700; High speed vibration arc welding device comprising a. The method of claim 1, The oscillation unit 400, A motor 410 coupled with the position fixing part 500; And The angular motion converter is coupled to the axial direction of the motor 410, and converts the rotational motion of the motor shaft 411 into a cam motion, and converts the cam motion into an angular motion of the link to be transmitted to the holder 300. 420; High speed vibration arc welding device comprising a. The method of claim 3, wherein The angular motion converter 420, A case 421 coupled to the motor 410; An eccentric cam 422 coupled with a motor shaft 411 in the case 421; A chem bearing 423 coupled to the outer circumference of the eccentric cam 422 in the rotational direction; A first link 424 having one end coupled to the chem bearing 423 and the other end angularly moved from the center axis; Amplitude adjusting means 425 which is hinged so that the position of the central axis of the first link 424 is variable; A second link 426 having one end hinged to and coupled to the other end of the first link 424; And An angular motion output shaft 428 coupled to the other end of the second link and angularly moved in a predetermined range; High speed vibration arc welding device comprising a. The method of claim 4, wherein The first link 424, Cam coupling end 424a in which the cam bearing 423 is axially coupled to form a long cam-shaped guide hole 424b that guides the chem bearing 423 to be movable within the rotation radius when the eccentric cam 422 is rotated. ; A hinge coupling end 424d extending a predetermined length from the cam coupling end 424a; A long slot-shaped slide groove 424c configured to hingely couple an amplitude adjusting means 425 between the cam coupling end 424a and the hinge coupling end 424d to move the central axis; High speed vibration arc welding device comprising a. The method of claim 4, wherein The amplitude adjusting means 425 is A variable hinge 425a which is hinged to move a central axis within the slide groove 424c of the first link 424; And An amplitude adjusting knob 425b which is screwed to the variable position hinge 425a to move the variable position hinge 425a in the axial direction when the screw is rotated; High speed vibration arc welding device comprising a. The method of claim 1, The position fixing part 500, A horizontal shaft displacement unit 510 coupled to the upper portion of the traveling body 110 to adjust the position by moving the oscillation unit 400 forward and backward in a horizontal direction; A swing shaft displacement unit 520 coupled to an upper side of the horizontal axis displacement unit 510 and moved forward and rearward, and swinging the oscillation unit 400 horizontally to adjust the position; And A vertical axis displacement part 530 coupled to the swing end of the swing axis displacement part 520 to adjust the position by moving the oscillation part 400 up and down; High speed vibration arc welding device comprising a.

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