KR20010069913A - rotation torch having the means of revolution radious adjustment - Google Patents

Abstract

PURPOSE: A rotary torch in which a rotation radius is adjusted is provided which consists simple and compact structure, controls a width of welding bead and smoothly performs high speed running welding. CONSTITUTION: In a torch for welding to one end part of which a welding tip (430) is adhered, and in the hollow space of the center part of which a gas and a metallic electrode are supplied, the rotary torch in which a rotation radius is adjusted is characterized in that the torch rotationally interlocked to a motor (200) is installed eccentrically to a rotation axis as a coupling lump (600), and a rotation radius operating part (500) moving left and right as supporting the torch is formed in a cover (300) so that a rotation radius of the welding tip is controlled.

Description

Rotation torch having the means of revolution radious adjustment}

The present invention relates to a torch used for welding, and in particular, the welding tip is configured to rotate and in addition to the adjustment of the radius of rotation of the welding tip can be adjusted freely the width of the welding bead as needed It is possible to rotate at a high speed to a rotating torch is adjusted the rotation radius that can perform high-speed driving welding smoothly.

The rotating torsion of which the rotation radius is adjusted according to the present invention can be used by being mounted on an automatic driving device which automatically runs, thereby providing a better welding machine and obtaining a uniform welding part.

Welding work is one of the essential processes in the industrial field, but it is harmful to the human body, and there are problems such as large dispersion in quality depending on the work skill of the worker. Therefore, many automatic welding machines have been developed.

Hereinafter, a torch automatic waving device of a welding machine for pipe connection of Utility Model Registration No. 1996-0000344 will be described as a conventional technology.

Attached Figure 1 is a perspective view showing the configuration of the torch weaving device in the torch automatic wave weaving device of the welder for pipe connection according to the prior art and Figure 2 is an operation diagram showing the action of the control rod.

The prior art is coupled to the rotating shaft (2) of the motor (1) protruding into the case 3, the rotating plate (4) for transmitting the power of the moving body (6), the guide hole of the case ( A moving body 6 and an eccentricity of the rotating plate 4 which are inserted into the middle of the left and right moving rods 8 inserted into the case 3 and inserted into the center 3 '. A connecting pin 5 and a rotating rod that are coupled while connecting the groove 4 'and the operation groove 7 of the movable body 6 to switch the linear reciprocating motion of the movable body 6 by rotating the rotary plate 4. To connect the lever (9) to the ends of the left and right moving rods (8), and to connect the connecting rods (19) to the ends of the levers (9) so that the 21 can rotate and reverse rotation. After connecting the operating rod (20) to the link mechanism connecting the operating rod (20) with both ends of the rotating rod (21), and to the lever (9) to adjust the movement angle of the lever (8) The auxiliary pipe 10 is coupled to the control rod 11 of the auxiliary pipe 10, the upper end of the bearing case 13 is fixed to the case 3, and inserted into the guide hole 17 of the fixing 16 It relates to a torch automatic weaving device for a pipe connecting welder, characterized in that the lever mechanism is fastened by the washer (15) and the bolt (14).

The torch automatic weaving device of the pipe connection welding machine according to the prior art according to the configuration as described above is a structure in which the torch is reciprocated to the left and right at a predetermined angle by a plurality of link mechanisms connected to the rotating shaft of the motor is weld There is a problem in that the structure itself is complicated and takes up a lot of space.

In addition, there is a problem that the possibility of failure is high because it is composed of a plurality of mechanisms and is not suitable to be used in combination with the automatic welding driving apparatus.

Accordingly, the present invention devised to solve the above problems is to provide a rotary torch, which is a simple but compact structure, the rotation radius of which the width of the welding bead can be adjusted while being adjusted.

Further, an object of the present invention is to provide a rotating torch which can rotate the torch at a high speed so that high-speed welding is possible, and easily combined with an automatic welding driving device to adjust a usable radius of rotation.

1 is a perspective view showing a configuration of a torch webbing device in a torch automatic wave weaving device of a pipe welding machine according to the prior art;

Figure 2-Action of the adjusting rod according to the prior art.

Figure 3 is a schematic appearance perspective view of a rotating torsion to adjust the rotation radius according to an embodiment of the present invention.

Fig. 4-A (A-A) line cross section in Fig. 3.

Fig. 5-Fig. 4 is a cross sectional view taken along line B-B.

FIG. 6 is a view showing a variable support whose position is changed along the cover and the second torch; FIG.

7 is a side view of the case where the rotary torch is adjusted to the automatic welding running apparatus according to the present invention.

<Description of Major Symbols Used in Drawings>

90 gas 95 metal electrode

100: rotary torch with adjustable rotation radius

200: motor 210: prime mover

300: cover 400: torch

410: first torch 420: second torch

430: welding tip 500: rotation radius operating part

510: shaft 520: connector

530: variable support 600: bundle

610: driven gear 620: housing

The present invention for achieving the object as described above, the welding torch is attached to one end and the gas and the metal electrode is supplied to the empty space portion of the central portion, the toe is rotated in conjunction with the motor Ochi is a coupling bundle eccentrically installed with respect to the axis of rotation, the rotation radius operation portion which moves to the left and right while supporting the torch is formed in the cover to rotate the rotation radius adjusted to the technical point that the rotation radius of the welding tip is adjusted It is about Tochigi.

Rotating torsion of the rotation radius is adjusted according to the present invention has a simple and compact structure has the advantage that the operation is easy to use easily.

In addition, high-speed welding is possible, and the width of the welding bead can be arbitrarily adjusted according to the working conditions of the welding base material, such that it is possible to perform a superior welding work.

Hereinafter will be described in more detail with reference to the drawings for the rotating torch rotating torque is adjusted according to the present invention. FIG. 3 is a schematic external perspective view of a rotating torch having a rotating radius adjusted according to an exemplary embodiment of the present invention, and FIG. 4 is a cross-sectional view taken along the line A-A of FIG.

As shown, the rotary torch 100 is rotated in accordance with the present invention, the torch 100 is largely the motor 200, the cover 300, the torch 400, the rotation radius operation unit 500 and the combined bundle 600 The motor 200 is attached to the outer lower portion of the cover 300 to rotate the motive gear 210, and the rotation radius operating part 500 is formed on the outer upper portion of the cover 300. To adjust the radius of rotation of (400). And the torch 400 is formed in the cover 300, the torch 400 is divided into two parts are fastened by the coupling bundle 600 and driven gear formed in the coupling bundle 600 As the 610 rotates in engagement with the motive gear 210 of the motor 200, the torch 400 rotates to perform a welding operation.

On the other hand, the torch 400 is divided into two parts, and the first torch 410 to which power and gas are supplied is fixedly installed and the second torch 420 interlocked with the rotation of the motor 200 is It is installed to be eccentric with the coupling bundle 600, the welding tip 430 formed at the end of the second torch 420 is rotated while drawing a set radius.

In addition, the second torch 420 is configured to adjust the rotation radius generated by the welding tip 430 finally by the change of the support point by the variable support 530 installed inside the cover 300 have. In addition, the welding tip 430 is to be wrapped around the welding tip 430 with a protective cap 350 that can be separated to induce the supplied gas 90 to be smoothly injected to the welding site and is generated from the outside The welding tip 430 can be protected from an unexpected force. The gas 90 supplied into the second torch 420 may be injected into the welding base material through a discharge hole (not shown) formed near the fastening portion with the welding tip 430.

In the above described the overall configuration of the rotary torch 100 is adjusted to the rotation radius according to the present invention and will be described in detail for each of these elements.

First, the structure of the torch 400 in the rotary torch 100 in which the rotation radius is adjusted according to an embodiment of the present invention will be described with reference to FIGS. 3 and 4.

The torch 400 is divided into two parts. The torch 400 is supplied with power, a gas 90, and a metal electrode 95 to the cover 300 and the bracket 310. Combined to prevent rotation. Meanwhile, the second torch 420 is installed to be spaced apart from the first torch 410 by a predetermined interval, and the coupling bundle 600 and one end thereof are coupled to rotate, and the welding tip 430 is attached to the other end thereof. It is structured. The first torch 410 and the second torch 420 form a hollow tube structure through which the gas 90 and the metal electrode 95 are continuously supplied and are made of a conductor. Current is supplied.

Subsequently, the first torch 410 and the second torch 420 will be described with respect to the coupling bunch 600.

First, the coupling bundle 600 is largely composed of a driven gear 610 and the housing 620, the outer peripheral surface of the driven gear 610 is a series in the portion that is engaged with the motive gear 210 of the motor 200 A tooth is formed and a portion that is fastened in contact with the housing 620 has a smooth curved surface and is coupled to the housing 620 by a bolt. As shown in FIG. 4, an outer ring of the ball bearing 630 is coupled to an inner diameter surface of the driven gear 610, and an end of the first torch 410 is inserted into an inner ring of the ball bearing 630. .

On the other hand, the first torch 410 is fixed by the cover 300 and the bracket 310 is configured to rotate the outer ring of the ball bearing 630 when the driven gear 610 is rotated. The outer end of the first torch 410 is coupled to the tube for supplying gas and the metal electrode 95 is supplied therein so that the first torch 410 is fixedly coupled to the cover 300 by The twisting of the gas supply pipe or the metal electrode can be prevented at the source.

Next, the housing 620 to which the second torch 420 is coupled will be described. As described above, one side of the housing 620 is coupled by the driven gear 610 and the bolt and the other end is bent at a right angle so that the outer ring of the first self-aligning bearing 640 is inserted and fixed. In addition, the second torch 420 is inserted into the inner ring of the first self-aligning bearing 640 to be combined. In addition, the spotter 440 is attached to the outer circumferential surface of the second torch 420 so as to prevent the play of the inner ring of the first self-aligning bearing 640 and the end thereof is fastened with a bolt to closely contact the inner ring. When the housing 620 rotates, the second torch 420 rotates by friction between the ball and the inner and outer rings.

5 is a cross-sectional view of the BB line of FIG. 4, and shows that the second torch 420 is eccentrically installed with respect to the housing 620. As shown in FIG. 5, in the exemplary embodiment of the present invention, the housing inner diameter surface 622 is parallelly moved by an X (x) value only in one axial direction to form an eccentricity. As the inner diameter surface of the housing 622 is eccentrically formed, the moving center shaft 624 of the first self-aligning bearing 640 and the second torch 420 inserted therein is disposed above the one center shaft 623. It will be located. The center axis of the housing outer diameter surface 621 is the same as the one center axis 623.

As shown, the upper and lower thicknesses of the housing on the vertical axis have values of A (a) and AplusEx (a + 2x), respectively, by the amount of eccentricity of the housing inner diameter.

Next, the rotation radius manipulation unit 500 will be described.

The rotation radius manipulation unit 500 is coupled to the shaft 510 formed on the outer side of the cover 300 and the connecting body 520 and the connecting body 520 which are moved by the rotation of the shaft 510 and the left and right. The variable support 530 is moved to.

The shaft 510 is supported by the bushes 512 formed on the two pedestals 511 at the top of the cover 300, and the shaft 510 is rotated only without displacement. In addition, a screw thread 513 is formed at an outer surface of the shaft 510 located between the pedestals 511, and a rotation knob 540 is formed at the other end thereof. In addition, a connector 520 having a female thread corresponding thereto is coupled to a thread 513 of the shaft 510, and one end thereof is installed toward the inside of the cover 300. A variable support 530 installed inside the cover 300 is coupled to one end of the connector 520.

The variable support 530 includes a sliding member 531 sliding along an inner surface of the cover 300 and a second self-aligning bearing 532 inserted into the sliding member 531. The outer diameter portion of the second torch 420 is inserted into the inner ring portion of the second self-aligning bearing 532. On the other hand, an opening 320 is formed in the upper surface portion of the cover 300 in which the connecting member 520 is formed so that the connecting member 520 can move left and right by a predetermined distance and the upper surface of the opening 320 is formed. A plate-shaped shield 330 is attached to prevent foreign matter from entering.

The rotation radius operation unit 500 serves to adjust the rotation radius of the welding tip 430 formed at the end of the second torch 420 and the variable support 530 as shown in FIG. As the distance from the coupling bundle 600 is farther away, the radius of rotation of the welding tip 430 becomes smaller.

FIG. 6 is a view showing a state in which the variable support 530 is changed along the cover 300 and the second torch 420. As the shaft 510 is rotated, the variable support 530 is rotated. 530 is moved left and right. On the other hand, the sliding member 531 of the variable support 530 is preferably made of an insulator so that the current delivered through the first torch 410 and the second torch 420 is not transmitted to the cover. Do.

Rotating torch 100, the rotation radius is adjusted according to the present invention has the advantage that can be used by replacing the general welding tip because the welding tip 430 is not installed eccentrically.

In the above description about the rotary torch to adjust the rotation radius according to an embodiment of the present invention, the following describes a case in which the rotary torch is adjusted to the automatic welding running apparatus 700 is adjusted. I would like to.

Figure 7 shows a side view in the case where the rotary torch is adjusted to the automatic welding running apparatus 700 is adjusted according to the present invention.

The automatic welding driving apparatus 700 is a device for automatically welding along the portion to be welded to perform a welding operation by forming a joint in a rotating torch whose rotation radius is adjusted and joining the automatic welding driving apparatus. You can do this automatically.

The automatic welding running apparatus 700 is formed with a control unit for adjusting the operation of the rotary torch 100, the rotation radius is adjusted according to the present invention so that the rotational speed of the motor can be adjusted and the rotary torch Should be able to be adjusted at an appropriate angle according to the working environment.

The present invention by the configuration as described above has the effect that can be freely adjusted the width of the welding bead can improve the workability.

In addition, the compact and simple structure can be miniaturized, which can be combined with a portable automatic welding driving device.

Claims (5)

In the welding torch is attached to the welding tip at one end and the gas and metal electrode is supplied to the empty space in the center, The torch, which rotates in conjunction with the motor, is installed to be eccentric with respect to the rotating shaft as a coupling bundle, and a rotation radius manipulation part which is moved to the left and right while supporting the torch is formed in a cover to adjust the rotation radius of the welding tip. Rotary torches whose rotation radius is adjusted. The method of claim 1, wherein the torch is, The rotary torch is divided into two parts, the first torch is supplied with the gas, power and metal electrode is not rotated and the second torch rotates in conjunction with the motor. The method according to claim 1 or 2, wherein the coupling bundle, A driven gear formed on an outer circumferential surface thereof with teeth rotating in engagement with the drive gear of the motor, and an inner side formed with a ball bearing coupled to one end of the first torch to rotate the outer ring; A housing coupled to the driven gear and having one end of the second torch coupled to the inner ring of the self-aligning bearing and the outer ring of the self-aligning bearing being eccentrically installed; Rotating torch, the rotation radius of which is characterized in that the rotation of the turn. The method of claim 3, wherein the rotation radius operation unit, A shaft supported and installed at both ends on an outer upper surface of the cover, and having a predetermined section of a screw part to generate only a rotational movement; A coupling member coupled to a screw part formed on the shaft and moving left and right according to the rotation of the shaft; End of the second torch in accordance with the position change of the variable support, including; a variable support which is wrapped around the outer side of the second torch in the cover and is coupled to the connecting member and moved from side to side Rotary torch is adjusted to the rotation radius characterized in that the rotation radius generated in the welding tip is formed in the control. The method of claim 3, wherein the housing, A rotating torch, the rotation radius of which is characterized in that the inner diameter is moved in parallel in the axial direction and eccentric with respect to the outer diameter.