WO2017204388A1 - Apparatus and method for supplying arc-shaped wire, and welding equipment - Google Patents

Abstract

The present invention relates to an apparatus and a method for supplying an arc-shaped wire, and welding equipment. The apparatus for supplying an arc-shaped wire according to an embodiment comprises: a guide unit comprising a plurality of guide holes of which at least the bottom surface is arc-shaped so as to guide an arc-shaped wire filler metal, and roller seating holes which are formed on the front side and the rear side and are opened upwards and downwards; and a roller unit comprising first roller units which are seated on the upper side and the lower side of the roller seating holes formed on the front side so as to adjust the center of the arc-shaped wire filler metal which is introduced via a guide hole on the inlet side, and second roller units which are seated on the upper side and the lower side of the roller seating holes formed on the rear side so as to discharge the arc-shaped wire filler metal of which the center has been adjusted. The curvature of a filler metal support surface on the outlet side is greater than the curvature of a filler metal support surface on the inlet side.

Description

Arc wire feeding device and method, and welding equipment

The present invention relates to an arc-shaped wire feeding device and method, and to a welding facility, and more particularly, to an arc-shaped wire feeding device and a method for supplying in the right direction by preventing a twisting of the center when feeding the arc-shaped wire filler material, and It relates to a welding facility.

Welding partially melts and joins a base material to be welded, but there is also a method in which only the base material is melted and contacted, but there is also a method in which the filler metal is melted and welded on the base material. Welding has been used a variety of welding methods depending on the type and thickness of the base material for welding. Various methods have been developed for welding welding indirectly by adding a filler material (for example, a welding rod) to a welding part between two objects called a base material or a part of an object.

For example, one of such welding methods includes a metal having high strength of heat resistance, durability, corrosion resistance, and the like, ie, a wet welding with a certain thickness of the filler metal. Many automated devices have been developed and used in the method of performing welding by adding filler material in welding such as overgrowth welding. As a special welding, TIG (Tungsten Inert Gas) welding, which is arc-discharged and welded by an electrode used as a heat source while supplying an inert gas, may use a filler material and perform a TIG welding.

The continuous feeding of the welding wire, ie filler metal, to the welder body is performed by a wire feeder. A wire feeder is a device that pulls a wire from a spool or reel and feeds it through the spring liner to the weld at a set speed. There are two types of methods, push and pull. In the push method, the roller of the wire feeder pushes the wire through the spring liner and supplies it to the arc side, and welding proceeds. In the pull method, the wire feeder is attached to the torch side of the spring liner and pulls the wire to feed the arc side. While welding.

Unlike in the case of using the conventional rod-shaped wire, the wire feeding device needs to be improved when using the arc wire filler material.

The present invention has been made to solve the above problems, and proposes an arc-shaped wire feeding device and method, and a welding facility using the same, the feeding capacity is improved by making the curvature of the exit filler metal support surface larger than the curvature of the filler metal filler surface. I would like to.

In order to achieve the above object, in accordance with one aspect of the present invention, at least a lower surface is formed in an arc (弧) shape guide unit including a plurality of guide holes for guiding the arc-shaped wire filler material; And a first roller unit which is seated on the front side of the guide unit on an upper side and a first roller unit that feeds the arc-shaped wire filler material introduced through the inlet guide hole of the guide unit and on the rear side of the guide unit. And a roller unit including a second roller unit which transfers the arc-shaped wire filler material introduced therethrough to be discharged through the outlet-side guide hole of the guide unit, wherein at least one of the first and second roller units is the center of the arc-shaped wire filler material. An arc-shaped wire feeder is proposed, wherein the shaft is maintained or adjusted according to a set criterion, and the curvature of the outlet-side filler material support surface is larger than the curvature of the inlet-side filler material support surface of the arc-shaped wire supply device.

At this time, in one example, the guide unit may further include roller seating holes opened up and down on the front side and the rear side, respectively, so that the first and second roller units feeding through the arc-shaped wire filler material are seated.

Further, in this case, in one example, the guide unit comprises: a plurality of guiders each provided with a guide hole on the lower side in cross section; And a guide body having roller seating holes at the front side and the rear side, respectively, the guide body having a plurality of guider seating parts mounted at one or both sides of the front and rear of each roller seating hole. The size is larger than the size of the guide hole in the rear side guider.

Furthermore, at this time, in one example, the plurality of guider seats are formed three in front of the front side roller seating holes, between the front side and rear side roller seating holes, and behind the rear side roller seating holes, and the plurality of guiders Is formed by the first, second and third guiders so as to be seated on the three guider seats in the order of front to rear, respectively, and the exit side of the first guide hole formed in the first guider, which is the curvature of the inlet-side filler base. The lower surface curvature of the third guide hole formed in the third guider, which is the curvature of the filler metal support surface, has a large cross section of the first, second and third guide holes, and may be any one of an arc shape, a rugby ball shape, and a part of a ring.

Further, in one example, the first and second roller units each consist of an upper roller and a lower roller, wherein the upper roller is formed with convex portions convex outward from the roller center on the roller circumference and the lower roller is directed toward the roller center on the roller circumference. A concave concave portion is formed, and an arc-shaped wire filler material may be interposed between the convex portion and the concave portion.

At this time, in another example, the curvature of the convex portion and the concave portion of the second roller unit is formed larger than the curvature of the convex portion and the concave portion of the first roller unit so that the curvature of the arc-shaped wire filler material is corrected and sent out by the second roller unit. At this time, the concave curvature of the first roller unit may be the curvature of the inlet side filler metal support surface and the concave curvature of the second roller unit may be the curvature of the outlet filler metal support surface.

In another example, it may further include a gap adjusting unit for adjusting the distance between the upper roller and the lower roller in each of the first and second roller units in accordance with the thickness of the arc-shaped wire filler material.

Next, in order to achieve the above object, according to another aspect of the present invention, in the welding equipment for welding the arc-shaped wire filler metal to the base material, the arc-shaped wire supply according to any one of the aspects of the present invention described above A welding installation is proposed that includes an apparatus.

At this time, in one example, the welding installation includes: a manipulator unit including a vertical support, a boom support plate mounted on the vertical support and a lifted boom support plate and a horizontal boom support supported on the boom support plate and horizontally moving; A reel unit winding the arc wire filler material and installed at one end of the horizontal boom to unwind the arc wire filler material to supply the arc wire filler material to the arc wire feeder; And a torch assembly unit installed at the other end of the horizontal boom and including a welding torch for melting the arc wire filler material provided from the arc wire feeder side and welding the arc wire filler material on the weld base material.

Alternatively, in another example, the reel unit of the welding fixture winds up and unwinds the plate-shaped wire filler material in cross section to supply the plate-shaped wire filler material, and the welding fixture is installed at one end of the horizontal boom and provides the plate-shaped wire filler material from the reel unit. It may further include a molding unit that passes between the upper and lower forming rollers and is molded into the arc-shaped wire filler material and fed to the arc-shaped wire feeder.

Next, in order to achieve the above object, according to another aspect of the present invention, the filler metal guide step of guiding the arc-shaped wire filler material is formed in the guide unit and the guide hole is at least the bottom surface arc (弧) type; A roller feeding step of feeding the first roller unit seated on the front side of the guide unit via an arc-shaped wire filler material introduced through the inlet side guide hole of the guide unit; And a filler material dispensing step of transferring the arc-shaped wire filler material introduced through the first roller unit from the second roller unit seated on the rear side of the guide unit via the first roller unit and sending it out through the rear guide hole of the guide unit. In the at least one of the roller feeding step and the filler material dispensing step, the center axis of the arc-shaped wire filler material is maintained or adjusted to meet the set criteria, and is fed. An arc-shaped wire feeding method is proposed, characterized in that the curvature of the filler metal bearing surface in the direction in which the filler metal is sent out is larger than the curvature of.

At this time, in one example, the first roller unit is seated on the upper and lower opening side of the roller seating hole formed on the front side of the guide unit and fed through the arc-shaped wire filler material, the second roller unit roller formed on the rear side of the guide unit It is seated on the up and down opening side of the seating hole and can be fed through an arc-shaped wire filler material.

Further, in one example, each of the first and second roller units comprises an upper roller having a convex portion convex outward from the roller center at the roller circumference and a lower roller having a concave portion concave toward the roller center at the roller circumference, the roller feeding step and In the filler metal discharging step, the arc-shaped wire filler material is interposed between the upper roller and the lower roller, and is fed. In the filler material discharging step, the convex part and the concave part of the second roller unit formed larger than the curvature of the convex part and the concave part of the first roller unit. The curvature of the arc wire filler material deformed during the feeding process is corrected by the curvature, and is sent out through the rear side guide hole having the lower surface curvature greater than the lower surface curvature of the inlet guide hole of the guide unit.

According to one embodiment of the present invention, the curvature of the outlet side lobster support surface is larger than the curvature of the inlet side lobster support surface can implement an arc-type wire supply device with improved feeding capacity and welding equipment using the same.

Further, according to one embodiment, the curvature of the arc-shaped wire filler material can be corrected and sent out.

In addition, various effects which are not directly mentioned according to various embodiments of the present invention may be derived by those skilled in the art from various configurations according to embodiments of the present invention.

1 is a view schematically showing an arc-shaped wire supply apparatus according to an embodiment of the present invention.

2 is a view schematically showing a guider of the arc-type wire feeder according to another embodiment of the present invention.

3 is a view schematically showing a guide unit of the arc-shaped wire supply apparatus according to another embodiment of the present invention.

4A and 4B are diagrams schematically illustrating a guider of an arc-shaped wire feeding device according to another embodiment of the present invention.

5 is a view schematically showing an example of a welding installation according to an embodiment of the present invention.

6 is a view schematically showing the flow of the arc-shaped wire supply method according to an example of the present invention.

7 is a view schematically showing the flow of the arc-shaped wire supply method according to another embodiment of the present invention.

According to one embodiment of the present invention, an arc-shaped wire feeding device includes: a guide unit including a plurality of guide holes formed at least on a lower surface thereof in an arc shape to guide the arc wire filler material; And a first roller unit which is seated on the front side of the guide unit on an upper side and a first roller unit that feeds the arc-shaped wire filler material introduced through the inlet guide hole of the guide unit and on the rear side of the guide unit. And a roller unit including a second roller unit which transfers the arc-shaped wire filler material introduced therethrough to be discharged through the outlet-side guide hole of the guide unit, wherein at least one of the first and second roller units is the center of the arc-shaped wire filler material. Maintaining or adjusting the shaft to meet the set criteria, the feed, and characterized in that the curvature of the filler metal filler surface of the outlet side is larger than the curvature of the filler metal filler surface of the inlet side of the arc-shaped wire feeder.

In addition, a welding facility including an arc-shaped wire feeding device according to one example of the above-described invention is proposed.

In addition, the arc-shaped wire feeding method according to another embodiment of the present invention comprises: a filler material guide step of guiding the arc-shaped wire filler material is formed in the guide unit and at least the lower surface is an arc-shaped guide hole; A roller feeding step of feeding the first roller unit seated on the front side of the guide unit via an arc-shaped wire filler material introduced through the inlet side guide hole of the guide unit; And a filler material dispensing step of transferring the arc-shaped wire filler material introduced through the first roller unit from the second roller unit seated on the rear side of the guide unit via the first roller unit and sending it out through the rear guide hole of the guide unit. In the at least one of the roller feeding step and the filler material dispensing step, the center axis of the arc-shaped wire filler material is maintained or adjusted to meet the set criteria, and is fed. It is characterized in that the curvature of the filler metal bearing surface in the direction of the filler metal is sent out than the curvature of the.

Embodiments of the present invention for achieving the above object will be described with reference to the accompanying drawings. In the present description, the same reference numerals refer to the same configuration, and additional descriptions may be omitted for the purpose of understanding the present invention to those skilled in the art.

In the present specification, unless one component is directly connected, coupled or disposed with another component, 'direct' is not only a form of 'directly connected, coupled or arranged', but also another component is interposed therebetween. It may also be present in the form of being linked, coupled or arranged.

Although singular expressions are described in this specification, it should be noted that they can be used as concepts representing a plurality of configurations as long as they are not contrary to the concept of the invention, or clearly distinct or contradictory. It is to be understood that the description of 'comprising', 'having', 'comprising', 'comprising', etc., in this specification includes the possibility of the presence or addition of one or more other components or combinations thereof.

First, the arc-shaped wire supply apparatus according to one aspect of the present invention will be described with reference to the drawings. At this time, the same reference numerals shown in each drawing means the same configuration, and reference numerals not shown in the drawings will be understood to indicate the same configuration as the same reference numerals shown in other drawings.

1 is a view schematically showing an arc-shaped wire feeder according to an embodiment of the present invention, Figure 2 is a view schematically showing a guider of the arc-shaped wire feeder according to another embodiment of the present invention, 3 is a view schematically showing a guide unit of an arc-shaped wire feeder according to another embodiment of the present invention, Figures 4a and 4b schematically shows a guider of the arc-shaped wire feeder according to another embodiment of the present invention It is a figure which shows.

Referring to FIG. 1, referring to one example, the arc-shaped wire feeding device includes a guide unit 10 and a roller unit 30. In addition, referring to FIG. 1, in another example, the arc-type wire supply apparatus may further include a gap adjusting unit 50. The arc-shaped wire feeder according to one example is characterized in that the curvature of the outlet-side filler material support surface is larger than the curvature of the inlet-side filler material support surface of the arc-shaped wire feeder. The curvature of the inlet side cradle bearing surface may be the lower surface curvature of the inlet side guide hole 113 or the filler metal bearing surface curvature of the first roller unit 31 seated in the front side roller seating hole 10a, The curvature of the surface may be a lower surface curvature of the rear side guide hole 113 or a filler base surface curvature of the second roller unit 33 seated in the rear side roller seating hole 10a. Hereinafter, each component will be described in detail with reference to the accompanying drawings.

First, the guide unit 10 will be described. The guide unit 10 includes a plurality of guide holes 113. In addition, in one example, the guide unit 10 may further include roller seating holes 10a. First look at the guide hole 113 and then look at the roller seating holes (10a). For example, the guide hole 113 may be provided in the guider 13. Referring to FIG. 3, the guide unit 10 is illustrated as including a guide body 11 and a plurality of guiders 13, and a plurality of guiders 13 seated on the guide body 11 are each guide holes ( 113). Alternatively, although not shown, unlike FIG. 3, the guide body 11 and the plurality of guiders 13 may be integrally formed so that the plurality of guide holes 113 may be formed in an integrated structure. Alternatively, although not shown, a plurality of guiders 13 having guide holes 113 may be mounted on a frame (not shown) of the guide body 11 of FIG. 3.

2, 4A and / or 4B, at least a lower surface of the plurality of guide holes 113 is formed in an arc shape to guide the arc wire filler metal 1. At this time, the structure in which the lower surface is formed in an arc shape refers to the structure which becomes arched downwardly, ie, the concave shape in the direction to which load is applied. In addition, the arc wire filler metal 1 refers to the linear filler metal whose cross-sectional shape is arc shape. For example, the cross-sectional shape of the guide hole 113 may have various shapes such as an arc shape, a rugby ball shape, and an arc shape that is part of a ring. The upper and lower surfaces of the guide hole 113 may be formed in an arc shape to support and guide the arc-shaped wire filler metal 1.

For example, at this time, referring to Figure 4b, the curvature of the lower surface of the inlet-side guide hole 113a of the guide unit 10 may be the curvature of the inlet-side filler material support surface of the arc-shaped wire feeder, the rear of the guide unit 10 The curvature of the lower surface of the side guide hole 113c may be the curvature of the filler metal bearing surface of the outlet side of the arc-shaped wire feeding device. That is, the lower surface curvature of the rear side guide hole 113c is larger than the lower surface curvature of the inlet side guide hole 113a.

Further, in one example, the size of the inlet side guide hole 113a of the guide unit 10 is larger than the size of the rear side guide hole 113c of the guide unit 10. For example, referring to FIGS. 4A and / or 4B, the size of the first guide hole 113a on the inlet side is larger than that of the third guide hole 113c on the outlet side.

Next, the roller seating holes 10a of the guide unit 10 will be described. For example, referring to FIG. 3, it is illustrated that roller seating holes 10a are formed in the guide body 11. Alternatively, although not shown, unlike FIG. 3, the guide body 11 and the plurality of guiders 13 may be integrally formed so that the plurality of guide holes 113 and the roller seating holes 10a may be formed in an integrated structure. have. Alternatively, although not shown, a plurality of guiders 13 each having a guide hole 113 is seated on the frame (not shown) of the guide body 11 of FIG. 3 and a roller seating hole (in the middle of the frame). An open area corresponding to 10a) may be formed.

At this time, the roller seating holes 10a are formed to be opened up and down from the front side and the rear side of the guide unit 10, respectively. The first and second roller units 31 and 33 are seated in the upper and lower mounting holes 10a. At this time, an arc-shaped wire filler material 1 guided through the inlet-side guide hole 113 of the guide unit 10 is fed between the roller units 31 and 33 seated on the seating hole 10a at an upper and lower side. . For example, as illustrated in FIG. 3, the guide body 11 is not formed or illustrated, but the guide body 11 and the plurality of guiders 13 are formed on a structure in which the guide body 11 is integrally formed or is not illustrated. It may be formed in an open space shape between a plurality of guiders 13 in a frame (not shown) on which the 13 is seated. The roller units 31 and 33 seated on the upper and lower sides of the roller seating holes 10a of the guide unit 10 are fed through the arc-shaped wire filler metal 1 therebetween.

Referring to FIG. 3, in one example, the guide unit 10 may include a plurality of guiders 13 and guide bodies 11. At this time, the guider 13 is provided with a guide hole 113 in the lower side in the cross-section, respectively. The guider 13 is seated on the guider seating portion 11a formed in the guide body 11. That is, the guider 13 is detachably seated in the guider seating portion 11a, and thus, the guider 13 having the guide hole 113 having an appropriate size or / and curvature is provided as necessary. It may be properly seated or replaced with (11a). The guide body 11 is provided with roller seating holes 10a at the front side and the rear side, respectively. The guider seating portion 11a is formed at one side or both sides of the front and rear of each roller seating hole 10a of the guide body 11. At this time, a plurality of guiders 13 are respectively mounted on each of the plurality of guider seating portions 11a.

Subsequently, another example will be described with reference to FIG. 3. Referring to FIG. 3, the plurality of guider seating portions 11a are positioned in front of the front side roller seating holes 10a, between the front side and rear side roller seating holes 10a, and the rear side roller seating holes ( Three are formed behind 10a). In addition, referring to FIG. 3, the plurality of guiders 13 are formed of first, second and third guiders 13a, 13b, and 13c to be seated on the three guider seating portions 11a in order from the front to the rear, respectively. do. That is, the first guider 13a is in front of the front side roller seating hole 10a, the second guider 13b is between the front and rear side roller seating holes 10a, and the third guider 13c. Is mounted to the rear of the rear side roller seating hole 10a, that is, to the rear of the guider unit 10.

At this time, referring to FIG. 4B, in one example, the lower surface curvature of the third guide hole 113c formed in the third guider 13c than the lower surface curvature of the first guide hole 113a formed in the first guider 13a. This is big. In this case, reference numeral R1 denotes a radius of curvature of the filler metal 1 passing through the first guide hole 113a and reference numeral R3 denotes a radius of curvature of the filler metal 1 passing through the third guide hole 113c. In this case, in one example, the cross sections of the first, second and third guide holes 113a, 113b, and 113c may be any one of an arc shape, a rugby ball shape, and a part of a ring. In Fig. 2, 4a and / or 4b is shown a cross section of the guide hole of the rugby ball shape, it is also possible to arcuate, arc shape that is part of the ring.

4A and / or 4B, in one example, the size of the first guide hole 113a formed in the first guider 13a is greater than that of the third guide hole 113c formed in the third guider 13c. Is greater than or greater than the size of the second and third guide holes 113b and 113c formed in the second and third guiders 13b and 13c. That is, the size of the first guide hole 113a at the inlet side is larger than the size of the rear third guide hole 113c or the second and third guide holes 113b and 113c.

For example, in FIG. 3, the first, second and third guiders 13a, 13b, 13c may be interchangeably coupled to the guider seating portion 11a. Accordingly, the guide hole 113 may be replaced with a guider 13 having a different size. In addition, the second or third guiders 13b and 13c among the first, second and third guiders 13a, 13b and 13c may be implemented in a form in which the first and second guiders 13b and 13c are omitted.

Alternatively, although not shown, unlike FIG. 3, the guider seating portion is located in front of the front roller seating hole 10a, that is, between the inlet side and the front and rear roller seating holes 10a or behind the rear roller seating hole 10a. 11a is formed, and the inlet side guider 13a and the rear side guider 13c may be seated on the guider mounting portion 11a, respectively.

Next, look at the roller unit 30 of the arc-shaped wire feeder in detail. Referring to FIG. 1, the roller unit 30 includes a first roller unit 31 and a second roller unit 33. At this time, at least one of the first and second roller units 31 and 33 is supplied by maintaining or adjusting the center axis of the arc-shaped wire filler metal 1 in accordance with the setting criteria.

First, the first roller unit 31 will be described. The first roller unit 31 is seated on the front side of the guide unit 10 from the top and bottom. The first roller unit 31 feeds the arc-shaped wire filler metal 1 introduced through the inlet-side guide hole 113a. For example, in one example, the first roller unit 31 may be seated on the front and rear roller seating holes 10a of the guide unit 10 from above and below to feed the arc-shaped wire filler metal 1. For example, in one example, the first roller unit 31 may be supplied by maintaining or adjusting the center axis of the arc-shaped wire filler metal 1 in accordance with a setting criterion. For example, as shown in FIG. 4A, the center of the arc-shaped wire filler material 1 passing through the inlet side guide hole 113a or the first guide hole 113a of FIG. 3 does not coincide with the center of the guide hole 113. When twisted, the arc-shaped wire filler metal 1 passes between the upper roller 31b and the lower roller 31a of the first roller unit 31 and the center axis can be adjusted to a setting criterion, for example, a vertical axis. The rear end of FIG. 4A shows the guide hole of the rear guider 13c at the rear end of the second roller unit 33 having the arc-shaped wire filler material 1 passing through the first roller unit 31 and having its center axis corrected to the vertical axis. Pass through 113c.

For example, referring to FIG. 2, both horizontal ends 231b of the convex portion 131b of the upper roller 31b of the upper roller 31b and both sides of the concave portion 131a of the lower roller 31a are cross-sectional in the first roller unit 31. The distance between the end portions 231a is larger than the distance between the apex of the convex portion 131b and the bottom of the concave portion 131a. That is, both horizontal end portions 231b of the convex portions 131b and both horizontal end portions 231a of the concave portions 131a are spaced apart from the distance between the vertex of the convex portions 131b and the bottom of the concave portion 131a. As a result, the arc-shaped wire filler metal 1 with the center axis twisted is inserted between the upper roller 31b and the lower roller 31a of the first roller unit 31, and the upper roller 31b and the lower roller 31a are rotated. Accordingly, the left or right end portion of the arc-shaped wire filler metal 1 is in contact with the horizontal ends 231b on both sides of the convex portion 131b of the upper roller 31b. At this time, as the upper roller 31b rotates, the heights of the horizontal ends 231b on both sides of the convex portion 131b of the upper roller 31b are lowered, and the ends of the arc-shaped wire filler metal 1 are pressed and the lower roller 31a The center axis of the arc-shaped wire filler metal 1 can be adjusted to the center of the recess 131a.

Next, look at the second roller unit 33. The second roller unit 33 is seated on the rear roller mounting hole 10a of the guide unit 10 from above and below. The second roller unit 33 conveys the arc-shaped wire filler metal 1 introduced through the first roller unit 31. For example, the arc-shaped wire filler metal 1 introduced through the first roller unit 31 may flow through the first roller unit 31 while the center axis is maintained or corrected. On the other hand, in one example, the second roller unit 33 can be supplied by maintaining or adjusting the center axis of the arc-shaped wire filler metal 1 in accordance with the setting criteria. Thus, the center axis of the arc-shaped wire filler metal 1 can be corrected only in the second roller unit 33 or together with the first roller unit 31.

In addition, referring to FIG. 1, in one example, the first and second roller units 31 and 33 may be formed of upper rollers 31b and 33b and lower rollers 31a and 33a, respectively. For example, referring to FIG. 1, the first and second roller units 31 and 33 are coupled to the body frame 20. Referring to FIG. 2, the upper rollers 31b and 33b have convex portions 131b which are convex outward from the roller center on the roller circumference, and the lower rollers 31a and 33a have concave portions 131a which are concave toward the roller center on the roller circumference. ) Is formed. At this time, an arc-shaped wire filler metal 1 is interposed between the convex portion 131b of the upper rollers 31b and 33b and the concave portion 131a of the lower rollers 31a and 33a. In FIG. 2, the upper roller 31b and the lower roller 31a of the first roller unit 31 are illustrated, but the second roller unit 33 may have the same shape.

The second roller unit 33 or the first and second roller units 31 and 33 may be installed so as to be replaceable so that the arc-shaped wire filler metal 1 can be calibrated to maintain proper curvature. For example, the upper rollers 31b and 33b and the lower rollers 31a and 33a can be replaced so that the curvature of the arc-shaped wire filler material 1 interposed therebetween can be corrected as necessary in the feeding process.

In addition, at this time, the second roller unit 33 may be sent out by correcting the curvature deformed in the feeding process of the arc-shaped wire filler metal (1). At this time, although not shown, the interval between the upper roller 33b and the lower roller 33a of the second roller unit 33 may correct the arc-shaped wire filler metal 1 according to the set curvature. For example, in this case, in order to effectively correct the curvature of the arc-shaped wire filler metal 1, the second roller unit 33 may perform thermal pressing.

For example, although not directly shown, the curvature of the filler metal bearing surface of the second roller unit 33 on the rear side is larger than the curvature of the filler metal bearing surface of the first roller unit 31 on the front side. For example, the filler metal support surface may be a curved surface of the recess 131a formed in the lower roller of each roller unit.

In addition, referring to FIG. 4B, in the front end drawing, the front end of the second roller unit 33, specifically, passes through the guide hole 113a of the inlet guider 13a formed earlier than the first roller unit 31. The case where the curvature 1 / R ₁ of the arc-shaped wire filler metal ₁ is deformed or under-set is shown, and in the following figure, the curvature 1 / R ₃ is corrected by passing through the second roller unit 33. The arc wire filler 1 passes through the guide hole 113c of the rear guider 13c formed at the rear end of the second roller unit 33.

At this time, in another example, the curvature of the convex portion and the concave portion of the second roller unit 33 may be greater than the curvature of the convex portion 131b and the concave portion 131a of the first roller unit 31. Thus, the curvature of the arc-shaped wire filler metal 1 is greatly corrected and sent out by the second roller unit 33. In this case, the concave curvature of the first roller unit 31 may be the curvature of the inlet side filler metal support surface and the concave curvature of the second roller unit 33 may be the curvature of the outlet filler metal support surface.

In addition, referring to FIG. 4B, the curvature of the lower surface of the guide hole 113 on the guide unit 10 behind the second roller unit 33, for example, the second or third guide hole 113c, is determined by the inlet-side guide hole ( 113, that is, the lower surface of the first guide hole 113a may be larger than the curvature. In this case, the curvature of the lower surface of the first guide hole 113a may be the curvature of the inlet side filler metal support surface, and the lower surface of the third guide hole 113c may be the curvature of the outlet side filler material support surface.

For example, the curvature of the lower surface of the first guide hole 113a and the curvature of the recess of the first roller unit 31 as the curvature of the inlet-side filler material support surface may be optional or applicable. The lower surface curvature of the three guide holes 113c and the curvature of the recesses of the second roller unit 33 may be optional or both.

Subsequently, referring to FIG. 1, in another example, the arc-shaped wire feeding device may further include a gap adjusting unit 50. The gap adjusting unit 50 adjusts the gap between the upper rollers 31b and 33b and the lower rollers 31a and 33a in the first and second roller units 31 and 33 according to the thickness of the arc-shaped wire filler metal 1. I can regulate it. For example, the upper frame 21 to which the upper rollers 31b and 33b of the first and second roller units 31 and 33 are coupled is the lower rollers 31a of the first and second roller units 31 and 33. , 33a) may be formed with a gap adjusting unit 50 for adjusting the gap is coupled to the lower frame 22 is coupled.

In addition, referring to FIG. 1, in one example, the arc-shaped wire feeding device further includes a gear unit 40. The gear unit 40 drives the lower rollers 31a and 33a of the first and second roller units 31 and 33, or serves to drive both the upper and lower rollers. In FIG. 1, the gear unit 40 is shown as driving the lower rollers 31a, 33a of the first and second roller units 31, 33.

For example, in one example, the arc wire filler material 1 fed from the arc wire feeding device may be a filler material used for, for example, TIG welding. In terms of material, the arc wire filler metal 1 may include a stainless material, for example. The filler metal is not limited to stainless steel. For example, it may be another material used for filler metal for TIG welding.

Next, look at the welding installation according to another aspect of the present invention in detail. In this case, reference may be made to embodiments of the arc-shaped wire supply apparatus and FIGS. 1 to 4B according to the above-described aspect, and redundant descriptions may be omitted.

5 is a view schematically showing an example of a welding installation according to an embodiment of the present invention.

The welding facility according to one embodiment of the present invention, that is, the welding facility for welding the arc-shaped wire filler metal 1 to the base material includes the arc-shaped wire feeding device 100 according to one aspect of the present invention described above. For example, the welding facility may be a TIG welding facility.

With reference to FIG. 5, it looks at in detail. Referring to FIG. 5, in one example, the welding facility may include a manipulator unit 200, a reel unit 300, an arc-shaped wire feeder 100, and a torch assembly unit 400. At this time, since the arc-type wire supply apparatus 100 is one of the embodiments of the invention described above, reference is made to the above descriptions, and overlapping descriptions are omitted. In addition, referring to FIG. 5, the welding installation according to another example may further include a guide unit 500. Examine each component in detail.

First, the manipulator unit 200 includes a vertical support 210, a boom support plate 230 and a horizontal boom 250. For example, the vertical support 210 may be installed vertically on the floor or the base plate. The boom support plate 230 is mounted on the vertical support 210 to lift. The horizontal boom 250 is supported by the boom support plate 230 and moves horizontally. For example, the reel mounting part 250a can be provided in the one end side of the horizontal boom 250, and the reel unit 300 and the arc-shaped wire supply apparatus 100 can be mounted in the reel mounting part 250a.

Next, the reel unit 300 winds up the arc-shaped wire filler metal 1 and is installed at one end of the horizontal boom 250. The reel unit 300 unwinds the arc wire filler metal 1 and supplies it to the arc wire feeder 100.

Next, the torch assembly unit 400 will be described. The torch assembly unit 400 is installed at the other end of the horizontal boom 250. The torch assembly unit 400 includes a welding torch 410 for melting the arc-shaped wire filler metal 1 provided from the arc-shaped wire feeder 100 side and melting it on the welding base material. At this time, the welding torch 410 is provided with a torch electrode 411 protruding from the lower end, by applying a high frequency current to the torch electrode 411 in an inert gas atmosphere such as argon gas or helium gas, the torch electrode 411 and the welding base material An arc is generated between them and welding can be performed. At this time, the arc-shaped wire filler metal 1 provided to the arc generating site is melted and welding is performed on the welding base material.

For example, referring to FIG. 5, the torch assembly unit 400 is tilted to adjust the supply angle of the arc wire filler metal 1 in accordance with the vertical lifting and / or forward and / or horizontal movement of the welding torch 410. It may further include a welding guide unit 430 for guiding the wire filler material (1). In this case, the welding guide unit 430 receives the arc wire filler metal 1 and provides the arc wire filler metal 1 between the torch electrode 411 and the welding base material. For example, the welding guide unit 430 may include a guide roller pair consisting of an upper roller and a lower roller to guide the arc wire filler metal 1 and provide the arc wire filler metal 1 to the arc discharge region.

In addition, referring to FIG. 5, the welding facility according to an example may further include a guide unit 500. At this time, the guide unit 500 is installed on the other end side of the horizontal boom 250, and maintains or corrects the center axis of the arc wire filler material (1) provided from the arc-shaped wire feeder 100 to the vertical axis and arc-shaped wire filler material Guide 1 is provided to the torch assembly unit 400 side. At this time, the guide unit 500 may pull the arc-shaped wire filler material (1) to maintain the tension, maintain or / and correct the center axis to the vertical axis and guide the torch assembly unit 400 side. For example, the guide unit 500 includes at least two guide roller sets 510 and 530, and each of the guide roller sets 510 and 530 includes the first and second roller units of the arc-shaped wire feeder 100. Similar to the structures of the upper rollers 31b, 33b and the lower rollers 31a, 33a in (31.33), the upper lower guide rollers are provided with convex portions that are convex from the center to the outer side around the rollers and the center from the outside to the periphery. It may be provided with a lower guide roller provided with a recessed concave side.

Although not shown, another example will be described with reference to FIG. 5. In this case, the welding facility includes a manipulator unit 200, a reel unit 300, an arc-shaped wire feeder 100, and a torch assembly unit 400 similarly to the embodiment shown in FIG. 5, and a molding unit (not shown). Not) may be further included. In addition, similar to FIG. 5, the welding installation according to an example may further include a guide unit 500. Duplicated omissions of the manipulator unit 200, the arc-shaped wire feeder 100, and the torch assembly unit 400 will be referred to the foregoing descriptions.

At this time, the reel unit 300 of the welding facility winds and unwinds the plate-type wire filler metal in cross section to supply the plate-type wire filler metal to a molding unit (not shown).

And, a molding unit (not shown) is installed at one end of the horizontal boom 250, for example, between the reel unit 300 and the arc-shaped wire feeder 100. The molding unit (not shown) may receive the plate-type wire filler metal from the reel unit and pass between the upper and lower forming rollers, and may be molded into the arc-shaped wire filler metal 1 and fed to the arc-shaped wire feeding device 100. For example, although not shown, a molding unit (not shown) may include first and second molding roller units (not shown). Each of the first and second forming roller units (not shown) may have upper and lower forming rollers, wherein the structure of the upper and lower forming rollers is, for example, arc-shaped wire feeding apparatus 100 as shown in FIG. Is similar to the structure of the upper rollers 31b and 33b and the lower rollers 31a and 33a in the first and second roller units 31 and 33 of FIG. The plate-shaped wire filler metal can be molded into the arc-shaped wire filler metal 1 while passing between the convex portion of the upper forming roller and the concave portion of the lower forming roller. At this time, the radius of curvature of the roller in the first forming roller unit (not shown) is smaller than the radius of curvature of the roller in the second forming roller unit (not shown). Accordingly, after primary molding in the first molding roller unit (not shown), the second molding roller unit (not shown) may be molded to a larger curvature to send the desired arc-shaped wire filler material 1.

Next, look at the arc-type wire supply method according to another aspect of the present invention in detail. In this case, reference may be made to embodiments of the arc-shaped wire supply apparatus and FIGS. 1 to 4B according to the above-described aspect, and redundant descriptions may be omitted. That is, the arc-shaped wire supply method according to the following embodiments may correspond to the method of supplying the arc-shaped wire in the arc-shaped wire supply apparatus according to the above embodiments. Accordingly, the contents described in the embodiments of the arc-type wire feeder described above can be applied in the embodiments of the present invention.

6 is a view schematically showing the flow of the arc wire supply method according to an embodiment of the present invention, Figure 7 is a view schematically showing the flow of the arc wire supply method according to another example of the present invention.

6 and / or 7, the arc-shaped wire feeding method according to one example comprises a filler material guide step (S100), roller feeding step (S300, S1300) and filler material sending step (S500, S1500). At this time, in at least one of the roller feeding step (S300, S1300) and the filler metal discharging step (S500, S1500) the center axis of the arc-shaped wire filler metal 1 is maintained or adjusted to meet the setting criteria, and the arc-shaped wire filler material (1) is Can be remitted. In addition, at this time, the curvature of the filler metal bearing side in the direction in which the filler metal is sent out is larger than the curvature of the filler metal front surface of the inlet side or the guide unit 10 in which the filler metal is guided. Look at each step in detail.

First, in the filler metal guide step (S100), the arc-shaped wire filler metal 1 is guided through the guide hole 113 formed in the guide unit 10 and at least a lower surface thereof.

Next, look at the roller feeding step (S300, S1300). In the roller feeding step (S300), arc-shaped wire filler material flowing through the inlet-side guide hole 113a of the guide unit 10 in the first roller unit 31 seated on the front side of the guide unit 10 in the upper and lower sides Supply via (1). For example, referring to FIG. 7, the first roller unit 31 seated on the upper and lower opening sides of the roller seating holes 10a formed on the front side of the guide unit 10 is fed through the arc-shaped wire filler metal 1. . For example, in one example, in the roller feeding step (S300, S1300), the center axis of the arc-shaped wire filler metal 1 in the first roller unit 31 can be maintained or adjusted to meet the setting criteria, for example, the vertical axis can be supplied. have.

In this case, referring to FIG. 7, in one example, the first roller unit 31 is concave toward the roller center at the roller roller and the upper roller 31 b having the convex portion 131b convex outward from the roller center. It consists of the lower roller 31a in which the recessed part 131a was formed. At this time, the arc-shaped wire filler metal 1 is interposed between the upper roller 31b and the lower roller 31a in the roller feeding step S1300, respectively.

Subsequently, look at the filler metal sending step (S500, S1500). In the filler metal dispensing step (S500), the arc roller filler material 1 introduced through the first roller unit 31 from the second roller unit 33 seated on the rear side of the guide unit 10 through the upper and lower sides is interposed. The feed is carried out through the rear guide hole 113c of the guide unit 10. For example, referring to FIG. 7, in the filler metal dispensing step (S1500), the arc-shaped filler metal in the second roller unit 33 seated on the upper and lower opening sides of the roller seating holes 10 a formed at the rear side of the guide unit 10. It can be sent out through the rear guide hole (113c) of the guide unit 10 via (1). On the other hand, the curvature of the filler metal bearing surface in the direction side where the filler metal 1 is sent out is larger than the curvature of the filler metal bearing surface on the inlet side or the front side of the filler material 10 on which the filler metal 1 is guided. In addition, in one example, in the filler metal dispensing step (S500, S1500), the center axis of the arc-shaped wire filler metal 1 in the second roller unit 33 can be maintained or adjusted in accordance with the setting criteria, for example, the vertical axis can be supplied. have.

In addition, referring to FIG. 7, in one example, the second roller unit 33 has an upper roller 33b having convex portions convex outward from the roller center at the roller circumference and a lower roller having concave portions concave toward the roller center at the roller circumference. 33A, wherein the arc-shaped wire filler metal 1 is interposed between the upper roller 33b and the lower roller 33a and fed in the filler metal discharging step S1500.

In addition, at this time, the curvature of the convex portion and the concave portion of the second roller unit 33 formed larger than the curvature of the convex portion 131b and the concave portion 131a of the first roller unit 31 in the filler metal dispensing step (S1500). The curvature deformed during the feeding process of the arc-shaped wire filler metal 1 can be corrected. In this case, the calibrated arc-shaped wire filler metal 1 may be sent out through the rear guide hole 113c having a lower surface curvature greater than the lower surface curvature of the inlet-side guide hole 113a. At this time, the curvature of the lower surface of the filler material receiving surface of the inlet-side guide hole 113a may be the curvature of the inlet-side filler material supporting surface.

For example, in one example, the curvature of the concave portion of the second roller unit 33 may be formed larger than the curvature of the concave portion 131a of the first roller unit 31, thus, the second roller unit 33 ), The curvature of the arc-shaped wire filler metal 1 is greatly corrected and sent out. In this case, the concave curvature of the first roller unit 31 may be the curvature of the inlet side filler metal support surface and the concave curvature of the second roller unit 33 may be the curvature of the outlet filler metal support surface.

In the foregoing description, the foregoing embodiments and the accompanying drawings are by way of example and not as limiting the scope of the present invention, but have been described by way of example to assist those of ordinary skill in the art. In addition, embodiments according to various combinations of the above configurations may be apparent to those skilled in the art from the foregoing detailed description. Accordingly, various embodiments of the invention may be embodied in a modified form without departing from the essential characteristics thereof, and the scope of the invention should be construed in accordance with the invention set forth in the claims, It includes various modifications, alternatives, and equivalents by those skilled in the art.

Arc-shaped wire feeding device and method, and welding equipment according to an example of the present invention can be applied to the welding field.

Claims (13)

1. A guide unit having a plurality of guide holes at least formed in an arc shape to guide the arc wire filler metal; And

   A first roller unit which is seated on the front side of the guide unit on the upper side and is supplied on the upper side of the first roller unit and the rear side of the guide unit to supply the arc-shaped wire filler material introduced through the inlet side guide hole of the guide unit; And a roller unit including a second roller unit which transfers the arc-shaped wire filler material introduced through the first roller unit to be discharged through the outlet side guide hole of the guide unit.

   At least one of the first and second roller units is supplied by maintaining or adjusting the center axis of the arc-shaped wire filler metal in accordance with a set standard,

   An arc-shaped wire feeder, characterized by a greater curvature of the outlet-side filler material support surface than the curvature of the inlet-side filler material support surface of the arc-shaped wire supply device.
2. In claim 1,

   The guide unit further comprises an arc-shaped wire feeding device which is open up and down on the front and rear sides, respectively, so that the first and second roller units for feeding the arc-shaped wire filler material are seated. .
3. In claim 2,

   The guide unit is:

   A plurality of guiders each provided with a guide hole at a lower side in a cross section; And

   And a guide body provided with the roller seating holes at the front side and the rear side, respectively, and having a plurality of guider seating parts, each of which guiders are seated at one or both sides of the front and rear of each roller seating hole.

   An arc-shaped wire feeding device, characterized in that the size of the guide hole of the inlet guider is larger than the size of the guide hole of the rear guider.
4. In claim 3,

   The plurality of guider seating portions are formed in front of the front side roller seating holes, between the front side and rear side roller seating holes, and at the rear of the rear side roller seating holes,

   The plurality of guiders are formed of the first, second and third guiders to be respectively seated in the order from the front to the rear of the three guider seating portion,

   The lower surface curvature of the third guide hole formed in the third guider, which is the curvature of the outlet filler metal support surface, is larger than the lower surface curvature of the first guide hole formed in the first guider, which is the curvature of the inlet side filler material support surface,

   Cross section of the first, second and third guide hole arc-shaped wire supply apparatus, characterized in that any one of the arc shape, rugby ball shape, a part of the ring.
5. In claim 1,

   The first and second roller units are each composed of an upper roller and a lower roller,

   The upper roller is formed in the roller circumferentially convex outward from the roller center and the lower roller is formed in the roller circumferentially concave toward the roller center, the arc-shaped wire filler material is interposed between the convex portion and the recess. Arc-type wire feeder.
6. In claim 5,

   The curvature of the convex portion and the concave portion of the second roller unit is greater than the curvature of the convex portion and the concave portion of the first roller unit, so that the curvature of the arc-shaped wire filler material is corrected and sent out by the second roller unit,

   And the curvature of the recessed filler metal bearing surface of the first roller unit is the curvature of the filler metal bearing surface of the inlet side and the curvature of the recessed filler material bearing surface of the second roller unit.
7. In any one of claims 1 to 6,

   And an interval adjusting unit for adjusting a gap between the upper roller and the lower roller in each of the first and second roller units according to the thickness of the arc wire filler material.
8. In the welding facility which welds arc-shaped wire filler metal to a base material,

   Welding equipment characterized in that it comprises an arc-shaped wire feeder according to any one of claims 1 to 6.
9. In claim 9,

   The welding equipment is:

   A manipulator unit including a vertical supporter, a boom support plate mounted on the vertical support and moving up and down and a horizontal boom support supported by the boom support plate and horizontally moving;

   A reel unit which winds the arc wire filler material and is installed at one end of the horizontal boom to unwind the arc wire filler material to supply the arc wire filler material to the arc wire feeder; And

   And a torch assembly unit installed at the other end of the horizontal boom and including a welding torch for melting the arc wire filler material provided from the arc wire feeding device side and welding the arc welding material on the welding base material.
10. In claim 9,

    The welding equipment is:

    A manipulator unit including a vertical supporter, a boom support plate mounted on the vertical support and moving up and down and a horizontal boom support supported by the boom support plate and horizontally moving;

    A reel unit which winds up the cross section of the plate-shaped wire filler material and is installed at one end of the horizontal boom to unwind and supply the plate-shaped wire filler material;

    A molding unit installed at one end of the horizontal boom and receiving the plate-type wire filler metal from the reel unit, passing between upper and lower forming rollers, and molding the arc-shaped wire filler metal to feed the arc-shaped wire feeding device to the arc-type wire feeding device; And

    And a torch assembly unit installed at the other end of the horizontal boom and including a welding torch for melting the arc wire filler material provided from the arc wire feeding device side and welding the arc welding material on the welding base material.
11. A filler metal guide step of forming an arc-shaped wire filler metal through a guide hole formed in the guide unit and having at least a lower surface thereof;

    A roller feeding step of feeding the first roller unit seated on the front side of the guide unit via the arc-shaped wire filler material introduced through the inlet guide hole of the guide unit; And

    A filler material discharging step of transferring the arc-shaped wire filler material introduced through the first roller unit from the second roller unit seated on the rear side of the guide unit via the first roller unit and feeding it out through the rear guide hole of the guide unit. Including;

    In at least one of the roller feeding step and the filler metal feeding step, the center axis of the arc-shaped wire filler metal is maintained or adjusted according to a setting criterion, and is supplied.

    And the curvature of the filler metal bearing surface in the direction in which the filler metal is discharged is larger than the curvature of the filler metal front surface of the inlet side of the filler metal or the front side of the guide unit.
12. In claim 11,

    The first roller unit is seated on the upper and lower opening side of the roller seating hole formed on the front side of the guide unit and fed through the arc-shaped wire filler material,

    The second roller unit is arc-shaped wire supply method characterized in that the seated on the upper and lower opening side of the roller seating hole formed on the rear side of the guide unit to feed through the arc-shaped wire filler material.
13. In claim 11 or 12,

    Each of the first and second roller units includes an upper roller having a convex portion convex outward from the roller center at a roller circumference and a lower roller having a concave portion concave toward the roller center at the roller circumference, wherein the roller feeding step and the filler material feeding step The arc-shaped wire filler material is interposed between the upper roller and the lower roller, and is fed, respectively.

    In the filler material dispensing step, the curvature of the arc-shaped wire filler material deformed during the feeding process is corrected by the curvature of the convex portion and the concave portion of the second roller unit, which is larger than the curvature of the convex portion and the concave portion of the first roller unit. And an arc-shaped wire feeding method, wherein the arc is guided through the rear side guide hole having a bottom surface curvature greater than a bottom surface curvature of the inlet guide hole of the guide unit.

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