JP3137106U - Linear material holding device for welding - Google Patents

Abstract

An object of the present invention is to provide a welding linear material holding device that can perform a setting operation and a replacement operation of a welding linear material quickly and easily, has a simple structure, and is inexpensive.
A welding linear material holding device is a tubular body into which a welding linear material with a bending rod pressed against an inner peripheral surface of a pipe is inserted, and a repulsive force generated by the bending rod is generated. The welding linear material was provided with a pipe body having a diameter and a length that would be a resistance that cannot easily slide in the axial direction of the pipe. Further, the resistance is a resistance that can be easily pulled out by gripping the exposed portion of the welding linear material. Further, the bending rod is a curl that naturally occurs when the welding linear material is stretched from a winder.
[Selection] Figure 1

Description

  In the present invention, a molten material formed in a linear shape such as a steel material, aluminum, titanium, or stainless steel (hereinafter referred to as “linear material for welding”) is piled on or welded to a workpiece (hereinafter referred to as these materials). The present invention relates to a welding linear material holding device that holds the welding linear material in various welding machines and welding operations.

As shown in FIG. 4, the conventional welding linear material holding device 105 includes four claws 101, a tightening ring 102 that opens and closes the four claws 101, the four claws 101, and the ring 102. And a cylindrical holder 103 provided at the tip.

The welding linear material 104 loosens the ring 103 to open the central axial space of the four claws 101, and fits in the opened axial space from the toe side of the four claws 101 into the holder 103. A linear material 104 for welding formed in a comparatively short and straight shape is inserted, and the four claws 101 are tightened with a ring 102 with an appropriate length exposed 104A from the toe side of the four claws 101. The welding linear material 104 formed in a straight line is fixed to the holder 103 and the welding operation is performed (see FIG. 3).

During the welding operation, if the exposed portion 104A is melted and consumed from the leading end side 104A of the welding linear material 104 and the length of the exposed portion 104A becomes sufficiently short, the welding operation is temporarily stopped and the four claws 101 are stopped. Then, the exposed wire material 104A is picked (by hand), and the welding wire material 104 is pulled out of the holder 103 by an appropriate length, that is, a length corresponding to 101A shown in the drawing. Then, the four claws 101 are tightened with the ring 103 again to fix the welding linear material 104, and then the welding operation is continued again.

As described above, in the conventional linear material holding device for welding 105, a set of one linear material for welding (104), the rear end of which is accommodated in the holder 103, is pulled out by the required length (101A) necessary for welding. The work of loosening or tightening the four claws 101 with the ring 103 must be repeated every time the work is performed.
In addition, in such a frequently occurring set work, it is necessary to work with both hands. Therefore, the original welding work cannot be performed, and an extra required work is required to hinder productivity.

Further, since the welding linear material 104 was formed in a relatively short and straight line so as to fit in the holder 103, a new welding linear material (the same welding linear material as 104 shown in the figure) was used as the welding linear material. The number of times of attachment / replacement work for holding the material holding device 105 is relatively large, and accordingly, an extra required work is required, and the original welding work cannot be performed, which hinders productivity improvement.

  An object of the present invention is to provide an apparatus for holding a linear material for welding, which can perform the setting operation and the exchange operation of the linear material for welding as described above quickly and easily, has a simple structure, and is inexpensive.

The invention for a welding linear material holding device according to claim 1 is a tubular body into which a welding linear material having a bending rod pressed against an inner peripheral surface of a pipe is inserted, and is generated by the bending rod. It is characterized by having a pipe body having a diameter and a length that makes the repulsive force the resistance that the welding linear material cannot easily slide in the axial direction of the pipe.

  The invention of claim 2 is the welding linear material holding device according to claim 1, wherein the resistance is a resistance that can be easily pulled out by gripping an exposed portion of the welding linear material.

The invention of claim 3 is the linear material holding device for welding according to claim 1 or 2, wherein the bending rod is extended from a winder on which the linear material for welding is wound. It is characterized by curl that occurs naturally.

The invention of claim 4 is the linear material holding device for welding according to any one of claims 1 to 3, wherein the bending rod has at least three contact portions on the inner peripheral surface of the pipe in the pipe. It is a pipe body into which the linear material for welding which has is inserted.

  The invention of claim 5 is the tubular material holding apparatus for welding according to claim 3, wherein the welding linear material is inserted through the center of the tube and both ends of the tube. It is characterized by.

  The invention of claim 6 is the linear material holding device for welding according to any one of claims 1 to 5, wherein the pipe body is provided with a gripping part to be gripped by a worker.

  The invention of claim 7 is the linear material holding device for welding according to any one of claims 1 to 6, wherein the grip portion is a cylindrical grip body having a large diameter, A tube longer than the length of the cylindrical gripping body is penetrated on the axis.

  The invention of claim 8 is the linear material holding device for welding according to any one of claims 1 to 8, wherein the linear material for welding has a required length suitable for welding on the distal end side of the pipe body. In the drawn-out state, an exposed portion curled so as to draw a circle extends outside the rear end side of the tubular body.

The invention of claim 9 is the linear material holding device for welding according to claim 8, wherein the linear material for welding extends in a plurality of circles outside the rear end side of the tubular body. .
It is characterized by claims.

  According to each of the inventions of claims 1 to 9, the setting work and the exchange work of the welding linear material can be performed quickly and easily, so that the productivity is higher than the conventional, and the structure However, it is possible to provide a linear material holding device for welding that is simple and inexpensive.

  According to the inventions of claims 2 to 5, any of the linear materials for welding can be picked and pulled out quickly and easily in the setting operation or the replacement operation, so that the productivity can be improved. .

  According to the inventions of claims 4 to 6, any of them can be provided with an inexpensive linear material holding device for welding which is easy to manufacture because it has a simple structure and hardly causes a failure.

  According to the inventions of claims 7 to 9, any of the linear materials for welding that are longer than conventional ones can be used, so the number of replacement operations can be reduced and productivity can be improved. it can.

Hereinafter, the present invention will be described with reference to an embodiment of a welding linear material holding device used in a laser welding apparatus.

FIG. 1 is a longitudinal sectional view showing an example of an implementation of a welding linear material holding device, FIG. 2 is a perspective view of a winder on which the welding linear material is wound, and FIG. 3 is an explanatory view of a laser welding operation. It is.

In FIG. 1, the illustrated linear material holding device 10 for welding is substantially composed of a tube 1, and the tube 1 is an elongated tubular body having a small diameter and a straight thin tube.
Therefore, fixing means such as a complicated chuck mechanism composed of the four claws 101 and the ring 102 for fixing the welding linear material 2 which is necessary in the past is unnecessary and is not provided.

  The fixing of the welding linear material 2 is performed by giving a bending flaw to the welding linear material 2 and passing it through the pipe body 1, so that a plurality of portions on the outer surface of the welding linear material 2 provided with the bending flaw are provided. Is fixed by generating resistance due to contact with the inner peripheral surface of the pipe body 1, that is, resistance that the welding linear material 2 is difficult to slide in the axial direction of the pipe body 1.

Therefore, when the welding linear material 2 to which the bending rod pressed against the inner peripheral surface of the tube of the tube 1 is inserted, the bending rod is welded linearly due to the repulsive force generated by the bending rod. The material 2 needs to have a degree of bending that provides resistance that is not easily slidable in the axial direction of the ring body, and the tube body 1 is also a tube having a diameter and a length that are necessary to generate the resistance as described above. It is necessary to be.

  On the other hand, the resistance needs to be a resistance that can be easily pulled out from the tube 1 by grasping the exposed portion 2A on the distal end side of the welding linear material 2.

In FIG. 2, in this embodiment, the bending rod as described above is pulled out from the winder 4 on which the welding linear material 2 is wound and stretched as shown in the figure. Utilizes naturally occurring curls. That is, the bending rod is attached when the welding linear material 2 is wound around the winder 4.

When this bending rod is attached to the welding linear material 2 so as to have at least three contact portions X, Y, Z corresponding to the inner peripheral surface of the tube in the tube 1, a stable and appropriate resistance can be obtained. Become. In the illustrated example, the contact portion Z is the center of the tube, and the contact portions X and Y are on both ends of the tube.
Of course, the bending wrinkles are not limited to this example, and may be applied by appropriate means.

  The welding linear material 2 has a sufficient length on the outside of the rear end side of the tube body 1 in a state where the front end side 2A is drawn out from the tube body 1 by a required length suitable for welding (see FIG. 1). For example, the minute portion may be inserted into the tube 1 so that the exposed portion 2B extends in a curled state so as to draw a circle. In this case, it is more effective to draw and extend a plurality of circles.

In this way, if the exposed portion 2B is extended, a long welding wire material 2 that is sufficiently longer than the conventional one can be used, and a single welding wire material 2 can be used more than before. Therefore, the frequency of exchanging work of the welding linear material 2 is reduced, and the productivity of the welding work can be further improved.

Referring again to FIG. 1, the tube body 1 of the above embodiment is provided with a grip portion 3 so that a worker can easily handle the tube body 1 by hand.
The grip portion 3 is a cylindrical grip body having a large diameter, and is configured such that a tube longer than the length of the cylindrical grip body is passed through the axis of the cylindrical grip body.

  In FIG. 3, the figure is an explanatory view of the laser welding operation. The welding linear material holding device 10 of the present invention is held by a worker's hand, and the workpiece W is attached to the workpiece W on the front end side. 2A is applied. Reference numeral 5 in the figure denotes a laser irradiation unit, and 6 denotes an atmospheric gas discharge nozzle.

It is a longitudinal cross-sectional view which shows an example of implementation of the linear material holding | maintenance apparatus for welding. It is a perspective view of the winding tool by which the linear material for welding is wound up. It is explanatory drawing of a laser welding operation. It is a perspective view of the conventional linear material holding device for welding (conventional example).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Tube 2 Welding linear material 3 Grasping part 4 Winding tool

Claims (9)

A tubular body into which a welding linear material with a bending rod pressed against the inner peripheral surface of the tube is inserted, and the repulsive force generated by the bending rod is caused by the welding linear material in the axial direction of the tube. A linear material holding device for welding, comprising a tubular body having a diameter and a length that provides resistance that cannot be easily slid.   2. The welding linear material holding device according to claim 1, wherein the resistance is a resistance that can be easily pulled out by gripping an exposed portion of the welding linear material. The welding wire according to claim 1 or 2, wherein the bending rod is a curl that naturally occurs when the welding linear material is drawn from a winding tool. Material holding device. The bending rod is a tubular body into which a linear material for welding having contact portions corresponding to at least three locations on the inner peripheral surface of the tube is inserted. The linear material holding device for welding as described in 2.   The welding linear material holding device according to claim 3, wherein the welding linear material holding device is inserted into the welding linear material having a contact portion at the center of the tube and both ends of the tube.   The linear material holding device for welding according to any one of claims 1 to 5, wherein the tubular body is provided with a grip portion to be gripped by a worker.   The gripping part is a cylindrical gripping body having a large diameter, and a tubular body longer than the length of the cylindrical gripping body is penetrated on an axis of the cylindrical gripping body. Item 7. The welding linear material holding device according to any one of Items 6 to 6.   The welded linear material has a curled exposed portion extending outside the rear end side of the tubular body in a state where a necessary length suitable for welding is drawn out at the distal end side of the tubular body. The welding linear material holding device according to any one of claims 1 to 8, characterized in that:   The welding linear material holding device according to claim 8, wherein the welding linear material extends in a plurality of circles outside the rear end side of the tubular body.

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