JPH0777311A - Lead welding method and burner device for lead welding - Google Patents

Abstract

PURPOSE:To contrive all automization of a lead welding work by making a lead core line pass through in a cylindrical core line guide and by making gas flame blow out from periphery with a constant angle toward a tip of the lead core line with an automatic sizing feed of the lead core line onto a section to be welded. CONSTITUTION:In a burner device for lead welding, a core line leading-out hole 15 at a center of which a lead core line is made to pass through has a nozzle body 14 at a side wall of which a gas leading hole to which a fuel gas leading tube 32 is connected is formed and at a tip side of this nozzle body 14 a cylindrical ring 18 is engaged. By an engagement of this cylindrical ring 18, between it and the hole body 14 is formed a guide groove 17 which is in connection with the gas leading hole. This guide groove 17 is along a longitudinal direction, and is formed with an inclination toward a center line of the core line leading-out hole 15. A core line 5 wound around a bobbin is introduced into a core line leading-out hole 15 from a core line automatic feeding device, and at this, is led downward in a straight line with correction of bending and curvature, is melted under combustion of a fuel gas from the fuel gas guiding tube 32, and is subjected to a lead welding.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a burner device used for lead welding.

[0002]

2. Description of the Related Art Most conventional lead welding relies on manual work. For example, in the terminal forming welding of the lead battery shown in FIG. 5, one hand holds the lead rod 5 and the other hand holds the gas burner 6. ,
While visually confirming that the amount of the added lead rod 5 melted, the amount of heat applied to the pole 1 and the lead bushing 3, and the scattering of molten lead did not occur, the pole 1 and the lead in the terminal mold 4 were confirmed. The bushing 3 was melted and integrated. Further, when the electrode plate group of the lead battery is strap-welded as shown in FIG. 6, the ear portion 9 and the strap 10 above the aligned electrode plate 7 are aligned in the electrode plate group holder 11 via the separator 8. It was arranged by a comb-tooth jig and melted and integrated by the same manual work as above.

The automatic welding used in some parts is
As shown in FIG. 7, the lead 5 which has been preliminarily weighed to a fixed amount and which has been standardized is placed on the pole 1 and the lead bushing 3 and the pole 1 are melted and integrated by the gas burner 6, or FIG. As described above, the gas burner 6 was fixed, and the plurality of core wires 5 that were guided and sent out to the core wire guide 13 set at an appropriate position were automatically fed, and were fused and integrated in the same manner as described above. In addition, 2 in the figure is a lead battery lid.

[0004]

The manual work described in the prior art has the drawback that it requires a considerable amount of skill in a bad environment such as lead vapor generation and that the welding finish also varies to some extent. Was there. Also, in the case of the former (FIG. 7) in the automation method described in the prior art, in order to keep the amount of added lead constant, the added lead must be quantitatively sampled and molded in a separate process. It was necessary to place it in a fixed position on the welded part. Further, in the latter case (Fig. 8), it is very difficult to set and fix the position of each core wire, and the core wire is distorted or bent during the feeding of the core wire, which makes it difficult to smoothly feed the core wire. In addition, it is difficult to balance the melting temperature, the melting speed, and the melting amount, so that there is a problem that unmanned automation of lead welding work by a robot or the like cannot be performed.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a burner device capable of fully automating lead welding work.

[0006]

In order to achieve the above object, the burner device of the present invention comprises a crater body 14 and an outer cylinder ring.
The crater body 14 is a tubular body having a core wire outlet hole 15 in the center, a gas inlet hole 16 in the outer peripheral side wall, and a guide groove 17 at the tip of the outer peripheral side wall. The outer tube ring 18 is fitted to the outer peripheral side wall of the crater body 14,
The outer peripheral surface of the guide groove 17 is closed, and the guide groove (17) has a plurality, and the longitudinal direction is inclined toward the center line I of the core wire lead-out hole 15, It is characterized in that the guided gas is guided to the outside.

[0007]

[Function] When the core wire is supplied, the core wire lead-out hole corrects the distortion and bending of the core wire, and the automatic feeding of a fixed size can be smoothly performed. In addition, the gas flame is ejected from the guide groove toward the center of the core wire outlet hole to melt the core wire.

[0008]

An embodiment of the present invention will be described with reference to the drawings.
FIG. 3 is a sectional view of the burner apparatus for lead welding according to the present invention. The crater body 14 shown in FIG. 2 and the outer cylinder ring 1 shown in FIG.
8 and 8 are fitted together. In the figure, 15 is a core lead-out hole for passing a lead core wire, 16 is a gas introduction hole formed in a part of the side wall, and is a passage for guiding gas to a guide groove 17 formed at the tip of the crater body 14. is there. The guide groove 17
As shown in FIG. 1, when the crater body 14 and the outer cylinder ring 18 are fitted to each other, the outer peripheral surface is closed to form a narrow passage. In the longitudinal direction of the guide groove 17, that is, the gas introduction hole 16
It is inclined from the side toward the outside toward the center line I of the core wire lead-out hole 15.

FIG. 4 is a schematic side view showing an embodiment of lead welding using the burner device of FIG. In the figure, 25 is a robot arm and 26 is a robot hand.
The core wire 5 wound around the core wire 5 is sent out in the direction of the arrow by the automatic core wire sending device 20, enters the core wire guide 21 supported by the balancer 22, and is guided to the burner device 24 according to the present invention via the automatic core wire sending device 23. The object to be welded 30 is placed on the pallet 28, moves on the conveyor 29, and is positioned at a predetermined position to be in a state immediately before welding. At the start of welding, the core wire 5 is sent straight downward through the core wire lead-out hole 15 of the burner device while correcting distortion and bending, and fuel gas regulated to a predetermined flow rate by the gas control device 27 is ejected and ignited from the burner device.

FIG. 9 is a vertical cross-sectional view showing the burner device portion 24 in more detail. Since the cross-sectional area, shape and angle α of the guide groove 17 are determined according to the shape and size of the welded portion 31, the firing position is within a fixed range. The core wire 5 is always supplied to a fixed position with a predetermined and appropriate heat power, and the gas flame, the core wire, and the welded portion 3
The relative position of 1 is fixed and stable lead welding is possible.
Reference numeral 2 is a fuel gas introduction pipe, and 33 is an adapter. When the welding work at one place is completed, the core wire 5 is pulled back into the core wire lead-out hole 15 by another device, and at the same time, the gas flow rate is reduced to a predetermined amount by the gas control device to make the gas flame a low flame. Lead welding is performed by repeating the above series of operations in sequence.

[0011]

Since the present invention is constructed as described above, it has the following effects. (1) The burner and core lead-out hole are integrated, making it easy to handle and mounting on a robot or the like for full automation. (2) Since the lead welding rod (core wire) is supplied through the core wire outlet, there is no displacement of the lead welding rod (core wire). (3) Since the outer cylinder ring is detachable, maintenance and handling such as replacement and internal cleaning are easy. (4) The flow rate and direction of the gas can be changed depending on the shape, cross-sectional area, orientation, etc. of the guide groove, and the positional relationship between the core wire and the gas flame can be optimized, so there is no possibility of scattering of molten lead. Useless lead consumption can be avoided.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a lead welding burner device of the present invention.

FIG. 2 is a sectional view of the crater body according to the present invention.

FIG. 3 is a sectional view of an outer cylinder ring according to the present invention.

FIG. 4 is a schematic side view showing an embodiment of lead welding using the device of the present invention.

FIG. 5 is an explanatory view of an example of conventional lead welding by manual work.

FIG. 6 is an explanatory view of another embodiment of conventional lead welding by manual work.

FIG. 7 is an explanatory diagram of an example of conventional automatic welding.

FIG. 8 is an explanatory view of another example of conventional automatic welding.

9 is an enlarged cross-sectional view of the main parts of FIG.

[Explanation of symbols]

 14 crater body 15 core wire outlet 16 gas inlet 17 guide groove 18 outer cylinder ring I centerline

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[Procedure amendment]

[Submission date] August 9, 1991

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction content]

[Document name] Statement

Title: Lead welding method and burner device for lead welding

[Claims]

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lead welding method for welding using a lead welding rod (lead core wire) and a burner device used in the lead welding method.

[0002]

2. Description of the Related Art Most conventional lead welding relies on manual work. For example, in the terminal forming welding of the lead battery shown in FIG. 5, one hand holds the lead rod 5 and the other hand holds the gas burner 6. ,
While visually confirming that the amount of the added lead rod 5 melted, the amount of heat applied to the pole 1 and the lead bushing 3, and the scattering of molten lead did not occur, the pole 1 and the lead in the terminal mold 4 were confirmed. The bushing 3 was melted and integrated. Further, when the electrode plate group of the lead battery is strap-welded as shown in FIG. 6, the ear portion 9 and the strap 10 above the aligned electrode plate 7 are aligned in the electrode plate group holder 11 via the separator 8. It was arranged by a comb-tooth jig and melted and integrated by the same manual work as above.

The automatic welding used in some parts is
As shown in FIG. 7, the lead 5 which has been preliminarily weighed to a fixed amount and which has been standardized is placed on the pole 1 and the lead bushing 3 and the pole 1 are melted and integrated by the gas burner 6, or FIG. As described above, the gas burner 6 was fixed, and the plurality of core wires 5 that were guided and sent out to the core wire guide 13 set at an appropriate position were automatically fed, and were fused and integrated in the same manner as described above. In addition, 2 in the figure is a lead battery lid.

[0004]

The manual work described in the prior art has the drawback that it requires a considerable amount of skill in a bad environment such as lead vapor generation and that the welding finish also varies to some extent. Was there. Also, in the case of the former (FIG. 7) in the automation method described in the prior art, in order to keep the amount of added lead constant, the added lead must be quantitatively sampled and molded in a separate process. It was necessary to place it in a fixed position on the welded part. Further, in the latter case (Fig. 8), it is very difficult to set and fix the position of each core wire, and the core wire is distorted or bent during the feeding of the core wire, which makes it difficult to smoothly feed the core wire. Further, it is difficult to balance the melting temperature, the melting speed, and the melting amount, so that there is a problem that unmanned automation of lead welding work by a robot or the like cannot be performed.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a lead welding method capable of fully automating the lead welding operation and a burner device used therefor.

[0006]

In order to achieve the above object, the lead welding method according to the present invention uses a lead core wire 5 as a tubular core wire guide.
21 through which the lead core wire 5 is automatically fed to the welded portion 31 at a fixed size, and a gas flame is ejected from the surroundings toward the tip of the lead core wire 5 at a constant angle α, The welded part
It is characterized by welding 31. Further, the burner device of the present invention has a crater body 14 and an outer cylinder ring 18, the crater body 14 is a tubular body, a core wire outlet hole 15 in the center, and a gas introduction hole 16 in the outer peripheral side wall. And a guide groove 17 at the tip of the outer peripheral side wall, the outer cylinder ring 18 is fitted to the outer peripheral side wall of the crater body 14, and closes the outer peripheral surface of the guide groove 17. , Said guide groove (17)
Is provided, and the longitudinal direction is inclined toward the center line I of the core wire outlet hole 15 to guide the gas guided to the gas inlet hole 16 to the outside.

[0007]

[Operation] When the core wire is supplied, the core wire guide corrects the distortion and bending of the core wire, and the automatic feeding of a fixed size can be performed smoothly. Further, a gas flame is ejected from the guide groove toward the tip of the lead core wire at a constant angle α, and lead welding is performed at a fixed position.

[0008]

An embodiment of the present invention will be described with reference to the drawings.
FIG. 3 is a sectional view of the burner apparatus for lead welding according to the present invention. The crater body 14 shown in FIG. 2 and the outer cylinder ring 1 shown in FIG.
8 and 8 are fitted together. In the figure, 15 is a core lead-out hole for passing a lead core wire, 16 is a gas introduction hole formed in a part of the side wall, and is a passage for guiding gas to a guide groove 17 formed at the tip of the crater body 14. is there. The guide groove 17
As shown in FIG. 1, when the crater body 14 and the outer cylinder ring 18 are fitted to each other, the outer peripheral surface is closed to form a narrow passage. In the longitudinal direction of the guide groove 17, that is, the gas introduction hole 16
It is inclined from the side toward the outside toward the center line I of the core wire lead-out hole 15.

FIG. 4 shows lead welding using the burner device shown in FIG.
It is a schematic explanatory drawing which shows the Example of the method . In the figure, 25 is a robot arm, 26 is a robot hand, and bobbin 1
Cylinder which is supported by balancer 22 is fed in the arrow direction by the core wire 5 wire automatic delivery device 20 that are involved in 9
It is guided into the burner device 24 according to the present invention via the automatic core wire feeder 23 after entering the core wire guide 21. The object to be welded 30 is placed on the pallet 28, moves on the conveyor 29, and is positioned at a predetermined position to be in a state immediately before welding.
At the start of welding, the core wire 5 is the core wire lead-out hole 15 of the burner device.
Then, the fuel gas is discharged straight downward while correcting the distortion and the fuel gas regulated to a predetermined flow rate by the gas control device 27 is ejected and ignited by the burner device.

FIG. 9 is a vertical cross-sectional view showing the burner device portion 24 in more detail. Since the cross-sectional area, shape and angle α of the guide groove 17 are determined according to the shape and size of the welded portion 31, the firing position is within a fixed range. The core wire 5 is always supplied to a fixed position with a predetermined and appropriate heat power, and the gas flame, the core wire, and the welded portion 3
The relative position of 1 is fixed and stable lead welding is possible.
Reference numeral 2 is a fuel gas introduction pipe, and 33 is an adapter. When the welding work at one place is completed, the core wire 5 is pulled back into the core wire lead-out hole 15 by another device, and at the same time, the gas flow rate is reduced to a predetermined amount by the gas control device to make the gas flame a low flame. Lead welding is performed by repeating the above series of operations in sequence.

[0011]

Since the present invention is constructed as described above, it has the following effects. (1) According to the configuration of claim 1, the lead core wire is distorted,
It doesn't bend. (2) According to the configuration of claim 1, the relative positions of the gas flame, the core wire, and the welded portion are fixed, and stable lead welding can be performed. (3) According to the configuration of claim 2, the burner and the core wire lead-out hole are integrated, which is easy to handle and can be mounted on a robot or the like and fully automated. (4) According to the configuration of claim 2, since the lead welding rod (core wire) is supplied through the core wire lead-out hole, the lead welding rod (core wire) is provided.
There is no misalignment. (5) According to the configuration of claim 2, since the outer cylinder ring is detachable, maintenance such as replacement and internal cleaning and handling are easy. (6) According to the configuration of claim 2, the flow rate and direction of the gas can be changed depending on the shape, cross-sectional area, orientation, etc. of the guide groove, and the positional relationship between the core wire and the gas flame is optimized. Therefore, it is possible to avoid scattering of molten lead and useless consumption of lead.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a lead welding burner device of the present invention.

FIG. 2 is a sectional view of the crater body according to the present invention.

FIG. 3 is a sectional view of an outer cylinder ring according to the present invention.

FIG. 4 is a schematic explanatory view showing an embodiment of the lead welding method of the present invention.

FIG. 5 is an explanatory view of an example of conventional lead welding by manual work.

FIG. 6 is an explanatory view of another embodiment of conventional lead welding by manual work.

FIG. 7 is an explanatory diagram of an example of conventional automatic welding.

FIG. 8 is an explanatory view of another example of conventional automatic welding.

9 is an enlarged cross-sectional view of the main parts of FIG.

[Explanation of symbols] 5 lead core wire 14 crater body 15 core wire outlet hole 16 gas introduction hole 17 guide groove 18 outer cylinder ring 21 core wire guide 31 welded part α angle between lead core wire and gas flame at the tip of the lead core wire I Center line

Claims (1)

[Claims] 1. A lead welding burner device having a crater body (14) and an outer cylinder ring (18), wherein the crater body (14) is a tubular body, and a core wire lead-out hole ( 15), a gas introduction hole (16) in the outer peripheral side wall, and a guide groove (17) at the tip of the outer peripheral side wall, the outer cylinder ring (18), of the crater body (14) The outer peripheral surface of the guide groove (17) is fitted to the outer peripheral side wall, and the guide groove (17) is provided in plural and the longitudinal direction is the center line (I) of the core lead-out hole (15). ), The burner device for lead welding is characterized in that the gas guided to the gas introduction hole (16) is guided to the outside.