JP2005144547A - Consumable electrode wire welding torch - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve problems that: a consumable electrode wire welding torch to be used in performing welding allows a consumable electrode wire to pass through its inside and supplies power in this condition to generate welding arc and thus some components (such as a contact chip and a nozzle) are consumed and polluted to cause defective welding and the need of exchange and cleaning of each component; excessive labor and time are required because each component has a screw structure when performing the above-described works; a torch having connection parts to be easily changed has an enlarged structure of the connection parts, access to narrow parts or distal parts of a workpiece to be welded becomes thereby difficult, and excellent welding posture and targeting cannot be ensured. <P>SOLUTION: A plurality of cut-in slits are formed on the female side of a connection part, the outer circumference thereof is tightened by a spring or an O-ring, and the slits are opened during the exchange. Exchange parts are unitized (chip body units) to increase the speed of exchange. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

The present invention relates to a consumable electrode wire welding torch which can easily or automatically replace a chip body or chip body unit at the tip of the consumable electrode wire welding torch body.

Conventionally, when connecting a torch body and a chip body, there is a method of rotating and tightening a threaded object on both sides or a rotation lock with a bush fitting (see, for example, Patent Document 1).
JP2003-145272

Since the consumable electrode wire welding torch used for welding passes through the consumable electrode wire and feeds power at this time to generate a welding arc, wear and contamination of some parts (contact tips, nozzles, etc.) may occur. This may cause welding defects.
For this reason, it is necessary to replace and clean each part.

When these operations are performed, each component has a screwed connection structure, so that it is necessary to rotate and attach each component.
For this reason, excessive effort and time are required for these operations.

In addition, since the corresponding parts intended to be easily exchangeable have a very large connecting portion due to the structure, the penetration into the workpiece during welding is deteriorated, and a good welding posture and aiming are difficult.

The present invention has been made in view of such problems of the prior art, and the object of the present invention is to easily or automatically replace consumable electrode wire welding torch and parts necessary for cleaning, and An object of the present invention is to provide a consumable electrode wire welding torch that can be made without making the connecting portion thick.

In order to achieve the above object, the consumable electrode wire welding torch of the present invention is characterized in that the tip body or the tip body unit can be easily or automatically replaced with the tip portion of the torch body.

The tip body is characterized in that a connected portion is processed into a straight or tapered shape.

A plurality of interrupting slits are inserted in the adapter unit attached to the tip of the torch body directly or separately, and the outer periphery is tightened by a spring or an O-ring.

Due to the above features, the thickness of the connection part can be suppressed, and it becomes easy to insert the torch to the thin and deep part of the welded product. It can be improved.

According to the present invention, since the chip body or the chip body unit can be easily or automatically replaced, the unmanned rate and the operating rate of the welding apparatus can be increased, and the thickness of the connection portion can be suppressed to be welded. As a result, it becomes easy to insert the torch into a thin and deep part of the product, and as a result, it becomes a consumable electrode wire welding torch that can improve the welding stability by being able to take a good welding posture and aiming position.

BEST MODE FOR CARRYING OUT THE INVENTION Best modes (examples) for carrying out the present invention will be described with reference to the accompanying drawings.
Figure 1 is an overall assembly drawing.
Fig. 2 shows a chip body unit (contact chip, nozzle, inner guide insulator, baffle, chip body).
Fig. 3 shows the tip of the torch body (direct type).
Figure 4 shows the chip body alone.
Fig. 4 shows the inner guide alone.

It is a unit external view of a consumable electrode wire welding torch. This is also connected to a grip (not shown). It is an external view of the whole torch body assembly of a consumable electrode wire welding torch. This is also connected to a grip (not shown). It is a chip body unit external view. It is a torch body front-end | tip part (direct type) process external view. It is an inner guide processing external view.

Explanation of symbols

1. Torch body appearance and overall structure 2. Torch body tip interruption slit processing 3. Torch body tip spring or O-ring 4. Contact tip 5 in the tip body unit. Nozzle 6 in the tip body unit. Insulator 7 in the tip body unit. In the tip body unit, the tip body 8 is the inner guide 9, the tip body 10 is the torch body insulating cover portion 11, the torch body and the torch body side 12 of the tip body connecting portion is the torch body tip spring or the O-ring set portion machining groove.

Claims (2)

The tip body or the tip body unit can be replaced with one touch or automatically by inserting multiple interrupt slits in the adapter unit attached to the tip of the torch body directly or separately, and tightening the outer periphery with a spring or O-ring. Features consumable electrode wire welding torch The chip body is straight or tapered without threading to the torch body connection part, and it can be connected to this part without making the connection part thicker. The consumable electrode wire welding torch according to claim 1, wherein the welding quality can be improved.

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