JPS6149783A - Automatic welding machine for both side fillet welding - Google Patents

Abstract

PURPOSE:To execute automatic welding, even if other member exists on a flange part, by constituting a titled welding machine so that a welding truck runs between aggregates, and the flange part or its upper part is not utilized. CONSTITUTION:When a welding truck 10 is advanced by operating a driving motor, feed motors 26, 27 are also driven and a wire is fed to nozzles 21, 17. When the truck 10 advances, a guide roller is pressed against aggregates 30, 31, and the truck 10 is guided along the wall of the aggregates 30, 31. When it reaches the welding end point, a limit switch 29 which has been installed in advance is engaged with a projecting piece, and the operation is stopped by closing of the switch 29.

Description

[Detailed description of the invention] [Technical field of invention] The present invention relates to automatic double-sided fillet welding.

[Prior art]

Conventionally, when welding the aggregate of a ship's outer plate block using this type of automatic welding machine, for example, the aggregate (1
) When welding the joints (Ao) and (A+) of 7 lunges (30a)
By attaching it to the arm via the top of the welded part (
Aa), (, A+) were welded. Another method is to place a welding cart on the 7 langes (30a) and extend the welding torch from there to weld the welds (Ao) and (A).
+) was welding.

Therefore, since the conventional automatic welding machine utilizes the upper part of the aggregate flange, it has the disadvantage that if there is another member above the flange, Δ contact cannot be made.

[Purpose of the invention]

The present invention has been made in view of this situation, and provides an automatic fillet welding machine on both sides that can weld even if other members are dropped on the upper part of the seven lunges of the aggregate. .

[Summary of the invention]

The double-sided fillet automatic welding machine according to the present invention includes a pair of guide rollers provided along the front and rear directions on one side of a welding cart; a pair of guide rollers; A 7" guide roller attached to a slide bar; a first welding nozzle attached to one side of the full-joint flower, adjustable in IL between left and right and up and down:
The welding nozzle is characterized by comprising a second welding nozzle whose position can be adjusted horizontally and vertically with respect to the slide nozzle (-).

[Embodiments of the invention]

Next, an embodiment of the present invention will be explained based on the drawings. Fig. 1 is a front explanatory view of an automatic welding machine according to an embodiment of the present invention.
FIG. 2 is an explanatory plan view of FIG. 1. In the figure, (1
0 is a welding cart, with a pair of car wings α1) at the front and rear, C
Lυ, and is moved forward or backward by a drive motor (not shown). (6), (Ll is a guide roller provided on one side of the welding cart αq, and the length of the arm (12a) of the guide roller □□□ is the arm (12a) of the guide roller (2).
The length of 13a) is adjusted to be slightly longer. u
4 is a striped bar, and a slide bar holding member (14
a) is a component that can be held by and slid along this member. (14b) is a spring for pressing, and the end of the slide par α barrel and the slide bar holding member (14a)
), and urges the slide bar 04 in the direction of arrow θ1. (6) is a guide roller, which is installed on the striped bar αa, and the striped bar α4 is indicated by the arrow α.
Since it is biased in the O direction, it will be biased in the same way.

(IQ is a holder provided on one side of the welding wheel αO, and αη is a nozzle held by the holder αQ. (I8
is a horizontal direction adjustment mechanism, and (to) is a vertical direction 1 Pilu mechanism attached to a part of the 9 horizontal direction adjustment mechanisms. Since the holder αG is attached to this vertical adjustment mechanism (to), the nozzle αη can be set at a desired position by appropriately adjusting the two adjustment mechanisms aa and (6).

(1) is a t holder provided on the other side of the welding cart αO, and (c) is a nozzle held in the holder (1).
A) is a left-right adjustment mechanism, which directly adjusts the length of the arm (15B) of the guide roller a. (A) is a vertical adjustment mechanism, which is attached to arms (15a) i, -.

This vertical adjustment mechanism has a hohoda kan attached to it, so you need to adjust the two adjustment mechanisms appropriately.
The nozzle Q role can be set to a desired position.

(C) and (C) are wire reels, and the wires (not shown) are drawn into the feeding motors (C) and @, respectively.
The feed motor (c) feeds the wire to the nozzle ■, and the feed motor (goods) feeds the wire to the nozzle η. (To) is given using the operation box), giving instructions for starting and stopping the welding cart αU, etc. (E) is a limit switch, which detects the stop position or welding end position of the welding cart αq.

In addition, in Fig. 2, in order to avoid complicating the drawing,
Wire reel (b) and wire are not shown in 7C.

For example, using the automatic welding machine of the actual MA example consisting of the above-mentioned welding, what about the aggregate -, O-tsu, shown in Fig. 6? Lip contact area (At) *(
At), the guide roller (6), a3. (to)
The lengths of the arms (12a), (13a), and (j5a) are adjusted. In normal case, arm (12a), (13
a) The length t is fixed, and the length of the arm (15a) is finely adjusted using the left and right adjustment mechanism (b). In addition, the length of the guide roller α3 arm (12a) and C13a) are both adjusted by the support part (12b).

(13b) is done.

Guide roller U, α3. When (g) is set at an appropriate position for the above adjustment, the guide roller α is biased by the pressing spring L14b), so it is elastically biased against the aggregate (1). The torch αη, ■ has a horizontal adjustment mechanism (6) and a vertical adjustment mechanism (6).

The position of F is finely adjusted.

When the adjustment is completed as described above, the F drive motor is activated by operating the switch on the operation box (c) to advance the welding wheel. At this time, the feed motor (c).

(A) is also driven, and the wire reel (C) and the wire wound around it (not shown) are driven by the feed motor □□□.

It is fed to nozzles Q■ and αη through (a), and welding work is performed. When the welding cart αQ moves forward, the length of the arm (12a) of the guide roller (B) is longer than the length of the arm (13a) of the guide roller α3, so the driving force from the drive motor acts as a component force in the left and right direction. The guide roller Q2 together with the pressing spring (14b).

(13, (G) is pressed against the aggregate (7), 0ρ, and the welding cart αq is guided along the wall of the aggregate (1), 0ρ.

When the welding end point is reached, a limit switch (A) is engaged with a previously installed protrusion, for example, and the above operation is stopped by closing this switch (4).

In addition, in the present invention, the position adjustment mechanism of the torch aη,01) is not limited to the above-mentioned embodiment, and it goes without saying that it can be used as desired. Further, the mechanism for elastically biasing the slide bar α can also be constructed using other suitable elastic members.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, the welding cart is made to run between the aggregates so that the 7th rank part or its upper part is not used. It has the advantage of being able to perform automatic welding even if it gets hot.

[Brief explanation of drawings]

The first factor and the second factor are a front explanatory view and a plan view of an automatic welding machine according to an embodiment of the present invention, and the sixth factor is an explanatory view of the welding object of the present invention. αQ...Welding trolley, (b), α3. (2)... Guide roller, Riyu... Slide bar, (14b)...
Pushing spring, 0η, (21) - Torch. Agent Patent Attorney Sanro Kimura Figure 3

Claims (1)

[Claims] 1 provided along the front and back direction on one side of the welding cart
A pair of guide rollers; a guide roller attached to a slide bar that is elastically biased on the other side of the welding cart and movable in the width direction of the cart; its position can be adjusted in the horizontal and vertical directions on one side of the welding cart 1. A double-sided fillet automatic welding machine comprising: a first welding nozzle attached to the slide bar; and a second welding nozzle whose position can be adjusted in the horizontal and vertical directions with respect to the slide bar.