JPS633758Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic welding device that performs horizontal fillet welding of an abutting portion between a vertical member and a horizontal member from both sides while traveling on the vertical member as a rail.

The steel plates that make up the hull are reinforced with numerous reinforcing materials, and automatic welding machines are used to attach these reinforcing materials. This type of welding can be understood as horizontal fillet welding of the abutting portion between a horizontal member and a vertical member, and welding of box-shaped members also falls into this category. There are two types of welding machines: one that welds horizontal members while running as a rail (or running surface), and one that welds vertical members while running as a rail.In the latter, the vertical members are closely spaced, making it difficult to take up space. This is advantageous in some cases.

Some types of vehicles that use vertical members as rails have running wheels in contact with a strip-shaped horizontal member attached to the upper edge of the vertical member, and the wheels are driven by a motor to travel. However, with this type of vehicle, stable running cannot be expected unless the width of the belt-like horizontal member is sufficient. The weight of the vehicle also plays a role in stable driving, and if it is too light, it may cause slips. However, in order to carry it around, it is naturally desirable that it be lightweight and small. The use of magnetic force can be considered to solve this trade-off problem. Specifically, if the running wheels are made of magnets, they will stick to the running surface, increasing the apparent weight of the vehicle body, preventing slips, and making it easier to carry.
However, if the running wheels are made into magnets, magnetic powder (of which there are many at welding sites) will be attracted to the wheels.
Since this is interposed between the vehicle and the running surface, slips are likely to occur.

The present invention is an automatic welding machine that uses vertical members as rails, but the band-like member on the upper edge of the vertical member may be narrow in width, and although magnets are used to reduce weight, magnetic particles may be attracted to the running wheels and cause slippage. The aim is to provide a twin-type automatic horizontal fillet welding machine that does not cause such problems. The welding machine of the present invention will be explained below with reference to the drawings.

FIG. 1 shows a perspective view of a welding machine according to the present invention,
2 and 3 are end views of a portion thereof.
In these figures, 10 is a horizontal member, and 12 is a vertical member, and the left and right edges of the butt portion of these members become fillet weld lines l ₁ and l ₂ . Welding torches 14 and 16 weld these weld lines simultaneously. The trolley 20 on which these torches are attached and travels is a frame-shaped body with four running wheels 22 that abut against the side surfaces of the vertical member 12;
Strip-shaped horizontal member (flange) 12a of the vertical member 12
One roller 24 is provided at each of the front and rear of the cart for fall prevention and weight support, which contact the upper end surface near the vertical member, and one roller 26 contacts the edge of the strip-shaped horizontal member 12a to prevent inversion and fall. Equipped with. The truck 20 is also equipped with a motor 28 that drives the running wheels 22. The roller 26 is attached to the tip of an extensible rod 30, and is moved forward or backward depending on the width of the strip-shaped horizontal member 12a so as to come into contact with the edge of the member. Fixed.

Also mounted on the carriage 20 is a horizontal guide rod 34, on both sides of which are mounted adjustment blocks 36, 38, which are fitted with vertical guide rods 40, 38.
42 is attached. Reference numerals 44 and 46 indicate longitudinal adjustment handles, which can be turned to move the adjustment blocks 36 and 38 along the horizontal guide rod 34 by a rack and pinion mechanism (not shown).
Further, 48 and 50 are vertical adjustment handles, which are turned to adjust the racks 40a and 42a of the rods 40 and 42.
The rods 40, 42 can be moved up and down by rotating a pinion (not shown) that meshes with the rods 40, 42. The holders 52, 54 of the torches 14, 16 have vertical guide rods 40, 42, vertical plane angle adjustment blocks 56, 58, horizontal plane angle adjustment blocks 60,
62. Reference numerals 64 and 66 are operating handles for the adjustment blocks 56 and 58, and similar handles are also provided for the adjustment blocks 60 and 62, but they are hidden in the shadows and cannot be seen in the drawing. A handle 68 is used to tighten and release the rod 40 by the adjustment block 36. Adjustment block 38 has a similar handle, but it is not shown. 70 is also a handle for tightening and releasing the rod 34 by the adjustment block 38. A similar handle is also present on adjustment block 36, but is not shown. 72 is a handle, which is used to carry the welding machine. 74
is an operation box that performs various controls such as starting and stopping welding. Reference numeral 74 is attached to the lower surface of the truck 20 by an electromagnet, and faces the vertical member 12 with a gap g therebetween.

For welding, hold the handle 72 and place the welding machine on the vertical member 12 as shown in the figure, expand and contract the rod 30 so that the roller 26 touches the end surface of the horizontal strip member 12a, and fix in this state with the screw 32. complete the installation. The left and right, top and bottom, horizontal and vertical angles of the torches 14 and 16 are determined by the handles 44 and 4.
Adjust by operating 6, 48, 50, 64, 66, etc., and fix in that position. Thereafter, various switches on the operation box 74 are operated to excite the electromagnet 74, turn on the welding power, start the motor 28, etc., and start horizontal fillet welding of the welding lines l ₁ and l ₂ .

This automatic welding machine has various features. That is, the weight of the truck is apparently increased by the adsorption of the vertical member 12 by the electromagnet 74, and stable running can be achieved. Since the wheels are not of the type that use magnets, magnetic particles will not be attracted to the wheels and interposed between them and the running surface. The vertical member 12, that is, the reinforcing member, has a relatively high height, and the running wheels 22 roll on this height portion (the side surface of the vertical member), so the vehicle width can be widened, and the running is stable in this respect as well. Further, the vertical position of the torch after it is set is determined by the roller 24, which rolls on the welding lines l ₁ and l ₂ , so the vertical member 12
It remains constant as long as there is no change in height. The height of this vertical member 12 is precisely constant, whereas the flange portion of the strip-like horizontal member 12a is somewhat inclined. A flange traveling type is affected by this inclination, but this does not occur with the present device because the roller 24 is provided which comes into contact with the upper end surface of the vertical member near the vertical portion. Further, since the horizontal positions of the rollers 26 and the rods 40 and 42 are adjustable, the width of the strip-shaped horizontal member 12a can be various. Since a gap is provided between the members 12 and 12a, the members 12 and 12a are not only L-shaped as shown, but also T-shaped,
It may also be type I. Further, the automatic welding apparatus of the present invention can be used even when the horizontal member 10 is a two-dimensional or three-dimensional curved surface and the vertical member 12 is accordingly changed from vertical. .

The device of the present invention can also be applied to welding side longitudinal members by partially modifying the device. That is, the horizontal member 10 in the above description becomes a vertical hull outer plate, and the vertical member 12 is a horizontal member or strip member 12a that is attached perpendicularly to the hull outer plate.
When applied to a side longitudinal part where the vertical member is a vertical member, the trolley 20 is placed on the horizontal member and the roller 24 is placed on the horizontal member.
By installing the rollers at the front position in the traveling direction at a position farther from the truck than the rollers at the rear position, the truck 20 is given directionality (in the direction of the vertical hull outer plate) and is caused to follow the vehicle. It is possible.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention, and FIGS. 2 and 3 are end views of a portion of FIG. 1. In the drawing, 12... Vertical member, 10... Horizontal member, 20... Dolly, 22... Running wheel, 28...
The drive motor, 74... Electromagnet, 24, 26...
...Roller, 30...Extensible rod, 34...
Horizontal guide rod, 36, 38... Adjustment block, 40, 42... Vertical guide rod, 56, 5
8, 60, 62... Angle adjustment mechanism, 52, 54...
...It's a torch holder.

Claims (1)

[Claims for Utility Model Registration] An automatic welding device for horizontal fillet welding of the abutting portion of a vertical member and a horizontal member from both sides simultaneously, comprising: a running wheel that abuts the side surface of the vertical member; A driving motor, an electromagnet that faces the side surface of the vertical member with a gap in between, and a roller that contacts the upper end surface of the vertical member near the vertical part are installed, and the upper surface of the vertical member is attached via an extendable rod. A roller is attached to the side edge of the trolley, and a horizontal guide rod is attached to the trolley, adjustment blocks are attached to the left and right ends of the trolley so that it can move horizontally, vertical guide rods are attached to these adjustment blocks so that it can move up and down, and these vertical guide rods A horizontal fillet twin automatic welding device characterized by a welding torch holder attached via an angle adjustment mechanism to the horizontal fillet twin automatic welding device.