JP2003311411A - Wire device for bobbin winding welding and welding set - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To eliminate the large floor area needed heretofore in transporting and storing a wire device for bobbin winding welding and the restriction heretofore needed for a passage for a transport carriage. <P>SOLUTION: A cover 40 of a flat plate is attached to a rotary drawer for drawing out a wire for welding. Since the cover is attached to the rotary drawer, the large floor area is not needed and the transportation is made easy. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bobbin winding welding wire device and a welding device using the wire device.

[0002]

2. Description of the Related Art Conventionally, a cover of a bobbin winding welding wire covers a part of the bobbin and the drawing device with a cylindrical cover, or covers the entire bobbin and the drawing device. Since there is a wire outlet on the outside, the diameter of the cover was larger than the flange diameter of the bobbin, and a large installation area was required. Also, like the bobbin, it did not rotate when the wire was pulled out.

A general bobbin, an apparatus and a method for welding the bobbin winding welding wire cover using the welding wire rotary drawing apparatus will be described with reference to FIGS. 9, 10 and 11.

9A and 9B are views showing a conventional bobbin winding welding wire cover, a general bobbin winding welding wire and a rotary wire drawing device, in which FIG. 9A is a plan view and FIG. FIG. 10 is a sectional view, FIG. 10 is a view showing another conventional bobbin winding welding wire cover, a general bobbin winding welding wire and a rotary drawing device for a wire, (a) is a plan view, and (b) is a plan view. ) Is a front view in which a main part is broken, and FIG. 11 is a schematic view of a conventional welding device using a bobbin winding welding wire cover, a general bobbin winding welding wire and a rotary wire drawing device. It is the figure which showed.

Further, in FIG. 9, 1 is a bobbin, 2 and 2a are welding wires, 3 and 3a are rotatable parts, 4
Is a drawing device rotating part, 5 is a wire passing part, 6 is a bobbin barrel part, 7 is a wire feeding tube, 8 is a rotary drawing device and a wire feeding tube are connected, and a welding wire is taken out from the wire passing part. A portion, 9 is a direction for sending out a welding wire, 14 is a wire drawing outlet, 15a and 15b are bobbin flanges, 16 is a wire feeding direction, 17 and 17a are drawing device rotating part rotating directions, 20a and 20b are bobbin flange part holes, Reference numeral 31 indicates a conventional cover.

Further, in FIG. 10, reference numeral 32 denotes another conventional cover, the same components as those in FIG. 9 are designated by the same reference numerals, and a duplicated description will be omitted.

Further, in FIG. 11, 10 is a wire feeding device, 1
1 is a welding torch, 12 is an object to be welded, 13 is a welding power source,
Reference numeral 18 denotes a welding tip, which is shown in FIGS.
The same components as those in FIG.

Next, a conventional bobbin winding welding wire cover, a bobbin winding welding wire, and a rotary wire drawing device will be described with reference to FIG.

The cover 31 is a cylinder made of paper or resin, the inner diameter of which is larger than the circumference of the rotary unit 4 of the drawer, and a jig 33 for aligning the center of the bobbin 1 with the cover 31 is provided. There is.

First, the bobbin 1 around which the welding wire 2 is wound is installed with one flange facing down. Further, the rotatable portion 3 is fixed near the center of the upper flange of the bobbin 1. The drawer unit rotating unit 4 is attached to the rotatable unit 3 so that the bobbin 1 and the drawer unit rotating unit 4 can freely rotate with each other via the rotatable unit 3.

Here, the bobbin 1 is wound around with a welding wire and is very heavy, the drawing device rotating part 4 is light, and only the drawing device rotating part 4 is rotated. The drawing device rotating part 4 is drawn out. Device rotation part rotation direction 17,
It can be freely rotated in the direction of 17a.

Further, the wire passing portion 5 is fixed to the pulling device rotating portion 4, and is rotated integrally with the pulling device rotating portion 4. The wire passing portion 5 has a tubular shape that allows the wire to pass through inside, and is used for preventing bending of the wire passing therethrough and for insulation.

As an example, a coiled steel having a polyolefin heat-shrink tube coated on the outside thereof is used.

The upper end of the pulling device rotating part 4 and the upper end of the wire passing part 5 are integrally rotatable.
Attach to. The rotatable portion 3a has the same structure as the rotatable portion 3.

Further, the wire feeding tube 7 is connected to the rotary type pulling device and the wire feeding tube and the rotatable portion 3a together with the portion 8 for discharging the welding wire from the wire passing portion.
Attach to. As a result, the pulling device rotating part 4 and the wire passing part 5 and the wire feeding tube 7 freely rotate with each other via the rotatable part 3a.

At this time, the pulling device rotating part 4 and the wire passing part 5 rotate about a straight line connecting the respective rotation centers of the upper and lower rotatable parts 3 and 3a. Here, the rotatable portions 3 and 3a specifically use bearings or the like.

With these constructions, the welding wire 2 wound around the bobbin 1 is drawn out from the wire drawing port 14 on the outer circumference of the bobbin 1, passes through the wire passing portion 5, and passes through the wire feeding tube 7.

With the above structure, when the welding wire 2 is fed in the wire feeding direction 16, the wire passing portion 5 naturally moves on the outer periphery of the bobbin 1 and pulls out the rotating direction 1 of the rotating portion of the drawing device.
It can be pulled out sequentially by turning in the direction of 7, 17a.
The cover 31 is set on the outside of the bobbin and the rotary type drawing device by using a jig 33 for aligning the center with the bobbin 1.

The above is a description of a general bobbin winding welding wire cover, a bobbin winding welding wire, and a rotary wire drawing device.

Next, the cover of the conventional bobbin winding wire will be described with reference to FIG.

The cover 32 is a paper or resin tube and an umbrella-shaped lid, the inside diameter of the tube is larger than the circumference of the drawer rotation unit 4, and the umbrella-shaped lid is located above the rotary drawer. It is attached to the part 8 which emits the non-rotating welding wire located.

Since the bobbin and the rotary type drawing device are the same as those in FIG. 9, they are omitted.

Next, a general apparatus and method for welding using a bobbin winding welding wire cover will be described with reference to FIG. First, the wire feeding tube 7 is connected from the portion 8 for discharging the welding wire from the wire passing portion to the front of the wire feeding device 10 by connecting the rotary type drawing device and the wire feeding tube. Further, the welding wire 2 is passed through the inside of the wire feeding tube 7 and guided to the tip of the welding torch 11 via the wire feeding device 10. A tubular welding tip 19 is installed at the tip of the welding torch 11, and the welding wire 2 is taken out from the tip of the welding tip 19 to aim at the welding position.

Further, the wire feeder 10 is driven to send out the exposed welding wire 2b. The wire feeding device 10 is driven in conjunction with welding, and at the same time, the welding power source 13 is installed so that a predetermined current and voltage can be applied between the welding wire 2 and the object to be welded 12.

With the above structure, when welding is performed, the wire feeding device 10 is driven to pull out the welding wire 2 in the wire feeding direction 16. By this operation, the wire passing portion 5 rotates on the outer periphery of the bobbin 1 in the pulling device rotating portion rotation directions 17 and 17a, and the welding wire 2
To pull out one by one. At this time, the inner diameter of the cover 32 is larger than the circumference diameter of the drawer rotation unit 4, so that the rotation is not hindered.

The drawn welding wire 2 passes through the wire passing portion 5, and is passed through the rotary type drawing device and the wire feeding tube.
Part 8 that connects the hub and takes out the welding wire from the wire passage part 8
Then, the wire is fed out of the rotary drawing device, continues to pass through the wire feeding tube 7, passes through the wire feeding device 10, and is guided to the tip of the welding torch 11.

Further, the welding wire 2 emitted from the tip of the welding tip 19 at the tip of the torch is fed so as to come to the target position for welding. Then, a predetermined current and voltage are applied between the welding wire 2 and the object 12 to be welded by a welding power source 13, and an arc is generated between the welding wire 2 and the object 12 to weld them. The above is a description of a general apparatus and method for welding using a general welding wire rotary drawing apparatus.

[0028]

However, in the above-mentioned conventional structure, if the diameter of the cover is large, the installation area becomes large and it cannot be placed in a narrow place. Further, as shown in FIG. 12, the welding wire may be placed on the dedicated carriage 34, moved from the storage location to the welding location, and welding may be performed while being placed on the dedicated carriage 34. There was a problem that I could not pass.

[0029]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, according to the present invention, a bobbin winding welding wire cover is attached to a rotary drawing device for drawing a welding wire, and the welding wire is drawn by a rotary type. The cover is rotated together with the drawer.

[0030]

FIG. 1 shows a bobbin winding welding wire device, a bobbin winding welding wire and a rotary drawing device for a wire according to Embodiment 1 of the present invention. FIG. , (B) is a front view in which a main part is broken.

FIG. 2 shows a bobbin winding welding wire device and a bobbin winding welding wire and a rotary drawing device for the wire according to a second embodiment of the present invention, wherein (a) is a plan view, and (b) is a plan view. ) Is a front view in which a main part is broken.

FIG. 3 shows a bobbin winding welding wire device, a bobbin winding welding wire and a wire rotary drawing device according to a third embodiment of the present invention. FIG. 3A is a plan view and FIG. ) Is a front view in which a main part is broken.

FIG. 4 shows a bobbin winding welding wire device and a bobbin winding welding wire and a rotary drawing device of the wire according to a fourth embodiment of the present invention, wherein (a) is a plan view, and (b) is a plan view. ) Is a front view in which a main part is broken.

FIG. 5 shows a bobbin winding welding wire device, a bobbin winding welding wire and a wire rotary drawing device according to a fifth embodiment of the present invention.
(A) is a plan view and (b) is a front view in which a main part is broken.

FIG. 6 shows a bobbin winding welding wire device, a bobbin winding welding wire, and a rotary wire drawing device according to a sixth embodiment of the present invention.
(A) is a plan view and (b) is a front view in which a main part is broken.

FIG. 7 shows a bobbin winding welding wire device, a bobbin winding welding wire and a rotary wire drawing device according to a seventh embodiment of the present invention.
(A) is a plan view and (b) is a front view in which a main part is broken.

FIG. 8 shows a welding apparatus using a bobbin winding welding wire according to an embodiment of the present invention.

In these drawings, the same parts as those of the conventional structure are designated by the same reference numerals, and the description thereof will be omitted.

As a result of repeated studies, it was found that it is effective to cover the upper part of the bobbin with dust in order to prevent the dust from adhering to the surface of the welding wire.

It was also found that in a place where there is little dust, the cover on the side surface of the wire functions sufficiently as a dust prevention cover even if there is a gap in the upper part where the wire outlet is located.

Therefore, the bobbin winding welding wire shown in Table 1 and the cover shown in Table 2 were manufactured and stored in the place shown in Table 3 for 1 week, and then the dust adhered to the wire surface by the method shown in Table 4 and the standard. The amount was evaluated. The results are shown in Table 5.

In the first embodiment, a flat bobbin winding welding wire cover 40 is attached to a rotary pulling device for pulling out the welding wire. The cover 40 was able to prevent dust falling from the top from adhering to the surface of the welding wire.

Further, since the cover is attached to the rotary type drawer, the installation area is not increased, and by installing the rotary type extractor, the cover can be installed at the same time. Could be attached.

In the second embodiment, a flat bobbin winding welding wire cover 41 is attached to a rotary drawing device for drawing the welding wire. The cover 41 was able to prevent dust falling from the upper portion from adhering to the surface of the welding wire.

In the third embodiment, a flat bobbin winding welding wire cover 42 is attached to a rotary drawing device for drawing the welding wire. The cover 42 was able to prevent dust falling from the top from adhering to the surface of the welding wire.

Further, since the cover is attached to the rotary drawer, the installation area is not increased, and by installing the rotary drawer, the cover can be installed at the same time. Could be attached.

In the fourth embodiment, the tubular cover 30 is attached to the outside of the bobbin winding wire. The cover 30 was able to prevent dust flying from the periphery from adhering to the surface of the welding wire.

Since the diameter of the cover is smaller than the wire drawing port of the rotary drawing device, the installation area was not increased so much.

In the fifth embodiment, a flat bobbin winding welding wire cover 40 is attached to a rotary drawing device for drawing the welding wire. Furthermore, a cylindrical cover 30 is attached to the outside of the bobbin winding welding wire. The cover 40 can prevent dust falling from the top from adhering to the welding wire surface, and the cover 30 can prevent dust flying from the periphery from adhering to the welding wire surface. It was Also, since one of the covers is attached to the rotary drawer, it does not increase the installation area, and by installing the rotary drawer, the cover can be installed at the same time. Since the other diameter of the cover was smaller than the wire drawing port of the rotary type drawing device, the installation area was not increased so much.

In the sixth embodiment, a flat bobbin winding welding wire cover 41 is attached to a rotary drawing device for drawing out the welding wire. Furthermore, a cylindrical cover 30 is attached to the outside of the bobbin winding welding wire. The cover 41 can prevent dust falling from the upper portion from adhering to the welding wire surface, and the cover 30 can prevent dust flying from the periphery from adhering to the welding wire surface. It was Also, since one of the covers is attached to the rotary drawer, it does not increase the installation area, and by installing the rotary drawer, the cover can be installed at the same time. Since the other diameter of the cover was smaller than the wire drawing port of the rotary type drawing device, the installation area was not increased so much.

In the seventh embodiment, a flat bobbin winding welding wire cover 42 is attached to a rotary drawing device for drawing the welding wire. Furthermore, a cylindrical cover 30 is attached to the outside of the bobbin winding welding wire. The cover 42 can prevent dust falling from the upper portion from adhering to the welding wire surface, and the cover 30 can prevent dust flying from the periphery from adhering to the welding wire surface. It was Also, since one of the covers is attached to the rotary drawer, it does not increase the installation area, and by installing the rotary drawer, the cover can be installed at the same time. Since the other diameter of the cover was smaller than the wire drawing port of the rotary type drawing device, the installation area was not increased so much.

In Conventional Example 1, a tubular cover 30 is attached to the outside of the bobbin winding wire. The cover 30 was able to prevent dust flying from the periphery from adhering to the surface of the welding wire. However,
The diameter of the cover was large and the installation area was large.

In the conventional example 2, the cover 32 is attached so as to cover the bobbin winding welding wire and the rotary drawing device. By this cover 32, it was possible to prevent dust flying from the upper part and the periphery from adhering to the surface of the welding wire. However, the diameter of the cover was large and the installation area was large.

[0054]

[Table 1]

[0055]

[Table 2]

[0056]

[Table 3]

[0057]

[Table 4]

[0058]

[Table 5]

[0059]

As described above, according to the wire device for bobbin winding welding of the present invention, a cover having a small installation area can provide a dust prevention function almost equivalent to that of a conventional cover having a large installation area, and is very easy. A cover can be installed on.

[Brief description of drawings]

FIG. 1 is a plan view of a cover of a bobbin winding welding wire, a bobbin winding welding wire and a rotary drawing device of the wire according to the first embodiment of the present invention, and FIG.

FIG. 2 is a plan view of a cover of a bobbin winding welding wire, a bobbin winding welding wire and a rotary drawing device of the wire according to a second embodiment of the present invention, and FIG.

FIG. 3 is a plan view of a cover of a bobbin winding welding wire, a bobbin winding welding wire and a rotary drawing device of the wire according to a third embodiment of the present invention, and FIG.

FIG. 4 is a plan view of a cover of a bobbin winding welding wire, a bobbin winding welding wire and a rotary drawing device of the wire according to a fourth embodiment of the present invention, and FIG.

FIG. 5 is a plan view of a cover of a bobbin winding welding wire, a bobbin winding welding wire and a rotary drawing device of the wire according to a fifth embodiment of the present invention, and FIG.

FIG. 6 is a plan view of a cover of a bobbin winding welding wire, a bobbin winding welding wire and a rotary drawing device of the wire according to a sixth embodiment of the present invention, and FIG.

FIG. 7 is a plan view of a cover of a bobbin winding welding wire, a bobbin winding welding wire and a rotary drawing device of the wire according to a seventh embodiment of the present invention, and FIG.

FIG. 8 is a diagram showing a welding device using a bobbin winding welding wire according to an embodiment of the present invention.

FIG. 9 is a plan view of a cover of a bobbin winding welding wire and a bobbin winding welding wire and a rotary drawing device of the wire according to the conventional example 1 of the related art, and FIG. Figure

FIG. 10 is a plan view of a cover of a bobbin winding welding wire and a bobbin winding welding wire and a rotary drawing device of the wire according to a conventional example 2 of the related art, and FIG. Figure

FIG. 11 is a view showing a welding device using a bobbin winding welding wire according to a conventional embodiment.

FIG. 12 is a front view in which a main part of a general welding wire dedicated carriage, a bobbin winding welding wire cover, a bobbin winding welding wire, and a rotary drawing device for the wire is broken away.

[Explanation of symbols]

1 bobbin 2, 2a, 2b Welding wire 6 bobbin body 10 Wire feeder 11 welding torch 12 Object to be welded 13 Welding power source

Claims (7)

[Claims] 1. A bobbin winding wherein a bobbin winding welding wire cover is attached to a rotary drawing device for drawing a welding wire, and the cover is rotated together with the rotary drawing device by drawing the welding wire. Welding wire device. 2. The bobbin winding wire device according to claim 1, wherein the cover is a flat plate. 3. The bobbin winding welding wire device according to claim 1, wherein the cover is inclined outward from the central portion. 4. The bobbin winding wire device according to claim 1, wherein the cover has a bent portion in its cross-sectional shape, and has a downward cover on the outer side thereof. 5. The cover has a tubular shape, the inner diameter of which is less than the circumference of the rotary drawing device, and the height when installed is lower than the wire outlet of the rotary drawing device. The wire device for bobbin winding welding according to claim 1. 6. The bobbin winding welding wire device according to claim 1, wherein the welding wire is sequentially wound from the inner layer to the outer layer of the bobbin while applying a twist. 7. The bobbin winding welding wire device according to any one of claims 1 to 6, a wire feeding device for drawing out the welding wire, and a welding portion for welding the drawn out welding wire to an object to be welded. And a welding power supply for supplying a welding current between the welding wire and the object to be welded.