JP7250237B2 - Welding trolley - Google Patents

Description

The present invention is a four-wheel drive compact welding trolley that performs external fillet welding with only two-wheel drive and first, second, and guide rollers.

Since the horizontal installation surface on which the welding trolley travels cannot travel below the installation surface of the four-wheel drive, it is necessary to perform welding by freehand or by installing a turning or positioner and lashing the steel body to be welded. was

Freehand welding, turning, and lashing to a positioner are labor intensive due to time and labor, such as within the allowable volume, installation location, and method. Labor is performed by welding with a welding trolley only by rotating the welded steel body upside down. It is intended to reduce the physical burden and shorten the time, and to solve the above-mentioned drawbacks.

The present invention is a welding carriage in which welding is performed while a welding carriage installed above a horizontal steel material on which a welding torch is mounted travels, in which a welding torch side drive wheel 2 provided on the welding carriage and two outer first guides are provided. It is composed of a roller and a second guide roller attached to the lower inner arm of the driving wheel 2 on the welding torch side. The driving wheel 2 rotates while being pressed downward by the weight of the welding truck, and runs left and right while sandwiching the vertical surface steel material between the first guide roller and the second guide roller attached to the lower inner arm. It is easy to install because it is only

As described above, because of the two-wheel drive, the ground contact area is small, and automatic welding of a horizontal surface width of, for example, approximately 65 mm or more and a vertical surface width of, for example, approximately 65 mm or more is possible. In addition, since outer fillet welding can be performed only with the free guide roller attached to the arm, the original inner fillet welding can be performed simply and clearly by removing the arm.

1 is a plan view (partially cutaway view) of a welding carriage and a welding member according to the present invention; FIG. It is a front view (partially cutaway view) of a welding carriage and welding members. FIG. 4 is a side view of a welding carriage and welding members; It is a manufacturing drawing of an arm attached to a welding carriage.

The support rod 9 uses an optional product, the arm and bracket of the second guide roller attached to the lower inner arm are manufactured, and the arm is installed in the M6 tapped hole on the side of the welding carriage so that the arm can be adjusted up and down. The installation holes for the aforementioned guide rollers are also constructed so that they can be adjusted back and forth.

Embodiments of the present invention will be described below with reference to the accompanying drawings. The present invention is a welding carriage 1 for welding a first steel material A and a second steel material B, the first steel material A being L-shaped having a horizontal surface 4 and a vertical surface 4A. On the other hand, the second steel material B has a vertical surface 5 along the vertical surface 4A of the first steel material A. The second steel material B may have various shapes, such as being straight below the vertical surface 5 or bending in an L shape. The first steel material A and the second steel material B are welded Y by the welding torch 3 of the welding carriage 1 at the upper end of the second steel material B and the upper part of the vertical surface 4A of the first steel material A (see FIG. 3). . still. The first steel material A and the second steel material B are temporarily welded before being welded by the welding torch 3 .

The welding carriage 1 is provided with drive wheels 2 for running on the upper surface of the horizontal surface 4 of the first steel material A described above. In addition, the welding carriage 1 has a support rod 9 provided on the welding carriage 1, and a first guide roller 7 running in contact with the vertical surface 5 of the second steel material B is attached.

Further, a second guide roller 8 running in contact with the vertical surface 4A of the first steel material A is attached to the welding carriage 1 via an arm 6 and a bracket 10. As shown in FIG. As a result, the welding carriage 1 travels while welding on the first steel material A and the second steel material B by means of the driving wheel 2, the first guide roller 7, and the second guide roller 8. As shown in FIG.

1 welding carriage 2 drive wheel 3 semi-automatic welding torch 4 horizontal surface 5 vertical surface 6 arm 7 first guide roller 8 second guide roller )
9 support rod 10 bracket

Claims (1)

A welding carriage for fillet-welding an upper portion of a first steel material having a horizontal surface and a vertical surface and a second steel material having a vertical surface along the vertical surface of the first steel material, wherein the welding carriage is the first steel material. In addition, a first guide roller and a second guide are in contact with both side surfaces of the drive wheel traveling along a horizontal plane spaced apart from the fillet-welded portion, and the first and second steel members so as to sandwich the respective vertical surfaces. A roller is provided, and the first guide roller is in contact with the vertical surface of the second steel material near the fillet welded portion, and the second guide roller is spaced downwardly from the first guide roller by a predetermined distance. A welding carriage characterized in that it is in contact with the lower vertical surface of the steel material.

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