JP3952552B2 - Horizontal automatic welding machine travel device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a traveling device for a horizontal automatic welding machine that butt welds a vertical plate such as a side wall of a large block in a horizontal direction.
[0002]
[Prior art]
As a traveling device of a horizontal automatic welder that welds a butt weld between vertical upper and lower plates in the horizontal direction, as shown schematically in FIGS. 3 to 5, in the horizontal direction between the upper and lower plates 1 and 2. A pipe-like rail 4 is mounted in a position above the extending groove portion 3 in parallel with the groove, and the traveling carriage 6 of the automatic welding machine 5 is supported on the rail 4 so as to be able to travel. 8 is used in which the groove portion 3 is welded. Specifically, a magnet 10 is attached to the pipe-like rail 4 at a plurality of locations in the longitudinal direction via a magnet attachment plate 9, and the rail 4 is attached to the surface of the upper plate 1 by adsorbing the magnet 10. The traveling carriage 6 of the automatic welding machine 5 is provided with anti-slip measures on the surface so that it can roll on the upper surface of the pipe-shaped rail 4. Two drum-shaped rollers 11a and 11b are attached to the front and rear sides so as to protrude from the back surface side, and the shafts 12 of both rollers 11a and 11b are rotatably passed through the surface side of the traveling carriage 6, respectively. A chain wheel 13 is attached to each of them, and a chain wheel 15 attached to an output shaft of a motor 14 installed on the upper portion of the traveling carriage 6 and a chain wheel 13 on the shaft 12 of both rollers 11a and 11b. When the endless chain 16 is put on the two rollers 11a and 11b by driving the motor 14, the rollers 11a and 11b are rotated so that they can run in a lateral posture along the rails 4 and when they run along the rails 4 The front and rear rollers 17a and 17b rolling in contact with the lower surface of the rail 4 are arranged on the back side of the traveling carriage 6 in the same manner as the driving rollers 11a and 11b, and the shafts of the rollers 17a and 17b are arranged. 18 is passed through a long hole 19 extending in the vertical direction of the traveling carriage 6 and attached to the front ends of the two levers 21a and 21b that are rotatably fixed to the surface of the traveling carriage 6 with screws 20; The lower rollers 17a and 17b are moved up and down by moving the other end portions of the levers 21a and 21b up and down so that they can come into contact with and move away from the lower surface of the rail 4. Reference numeral 22 denotes an operating rod for moving the two levers 21a and 21b up and down.
[0003]
[Problems to be solved by the invention]
However, in the case of the conventional automatic welding machine traveling device, a plurality of magnets 10 provided in the middle of the rail 4 are fixed to the surface of the plate 1 to install the rail 4, and then the traveling cart is placed on the rail 4. Although the rail 4 is long and quite heavy, the operation of attaching the plate 1 to the surface requires a lot of time and is a heavy labor.
[0004]
Accordingly, the present invention is intended to enable an automatic welder to travel without using a conventional guide rail.
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the present invention provides a traveling device for a horizontal automatic welder that performs welding by causing the automatic welder to travel laterally along a horizontal groove portion that butt welds vertical upper and lower plates together. in the back surface of the traveling vehicle equipped with a welding machine, with incorporating the electromagnets as to cause the suction force to the surface of the vertical plate, mounting a permanent magnet to the upper end position of the running posture of the traveling vehicle, and In order to allow the traveling carriage to travel using the upper groove surface of the groove portion where the upper and lower plates are butt-welded to each other as a rail , copying rollers are provided on the front groove surface and the upper groove surface of the groove section. always Niso respectively rotatably to the mounting support to roll in contact with, and so as to travel traveling truck sideways so as to roll against the profiling roller into the upper open crest of the groove portion configured And then A configuration in which the line truck so as to slightly upward travel from the horizontal.
[0006]
Since the copying roller is run along the upper groove surface of the groove portion instead of the rail, the traveling carriage can run sideways, so there is no need to set up the rail by installing a dedicated rail during welding, and the traveling carriage is horizontal. By running on a slightly upward running line, the copying roller can always be in contact with the upper groove surface.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0008]
1 and 2 show an embodiment of the present invention, in which an automatic welder 5 is caused to run sideways along a horizontal groove portion 3 where butt welding of upper and lower plates 1 and 2 is performed. Therefore, in the configuration in which the traveling carriage 6 equipped with the motor 23 and the welding machine 7 and provided with the welding torch 8 has wheels 24 that roll on the surface of the plate 1 on the front, rear, left and right sides, the traveling carriage 6, the electromagnet 25 is incorporated in the central portion of the back surface (the plate 1 side) so as to be close to the surface of the plate 1, and the permanent magnet 26 is attached to the upper end position of the running posture, and the permanent magnet 26 and the electromagnet 25 In order to allow the traveling carriage 6 to self-run while adsorbed to the surface of the plate 1 and to restrict the traveling direction of the traveling carriage 6, the upper groove of the groove portion 3 is provided on both front and rear sides of the traveling carriage 6. The copying roller 2 that rolls in contact with the edge of the surface 3a Are attached via attachment members 28. Further, when the traveling carriage 6 is traveling, the copying roller 27 is always in contact with the edge of the upper groove surface 3a so that the upper groove surface 3a can travel as a rail. For this reason, the traveling trolley 6 is set in a traveling posture such that it travels a traveling line slightly upward from the horizontal.
[0009]
When the plates 1 and 2 are butt welded, the traveling cart 6 is positioned on the surface of the upper plate 1 to excite the electromagnet 25 and attract the permanent magnet 26 to the plate 1. In this state, the copying rollers 27 before and after the traveling carriage 6 are brought into contact with the upper groove surface 3a edge of the groove portion 3.
[0010]
Next, the wheel 24 of the traveling carriage 6 is rotationally driven, the welding machine 7 is operated while the traveling carriage 6 is traveling at a low speed, and the butt welding of the groove portion 3 is automatically performed by the welding torch 8. To. At this time, the traveling carriage 6 travels in a slightly obliquely upward posture with respect to the groove line, so that the two scanning rollers 27 at the front and rear are strongly pressed against the upper groove surface 3a. Accordingly, the copying roller 27 can travel while always in contact with the edge of the upper groove surface 3a, and travels along the groove portion 3 using the upper groove surface 3a of the groove portion 3 as a rail. be able to. This makes it possible to always travel along the groove portion 3 without setting up a long rail for guiding the traveling of the traveling carriage 6 during welding, and the groove surface 3a is changed. However, it is possible to travel correctly following the change, and multi-layer welding of the groove portion 3 can be performed.
[0011]
【The invention's effect】
As described above, according to the traveling device for a horizontal automatic welder of the present invention, welding is performed by causing the automatic welder to travel horizontally along a horizontal groove portion where the vertical upper and lower plates are butt-welded to each other. In the lateral automatic welding machine traveling device, an electromagnet is incorporated on the back of the traveling carriage on which the welding machine is mounted so as to generate an attracting force on the surface of the vertical plate, and at the upper end position of the traveling attitude of the traveling carriage. A copying roller is attached to each of the front and rear sides of the traveling carriage so that the traveling carriage can travel using the upper groove surface of the groove section where the traveling carriage butt welds the upper and lower plates as rails. The rolling carriage is moved sideways so that it rolls in contact with the upper groove surface of the groove and is rotatably mounted and supported. To further since the traveling vehicles the scanning roller as position as to travel slightly upward traveling line from the horizontal Aru always be in contact with the upper side open crest, running without falling by added permanent magnet carriage The upper groove surface of the groove portion can be used instead of the rail, and the setup for attaching a dedicated rail in parallel with the groove portion can be omitted at all, thereby eliminating heavy labor. In addition, since it can run along the groove surface, it can be made to follow even if the groove portion is deformed, and an excellent effect such as stable welding can be achieved.
[Brief description of the drawings]
FIG. 1 is a front view showing an outline of a traveling device of a lateral automatic welding machine of the present invention.
FIG. 2 is a view taken in the direction of arrows II-II in FIG.
FIG. 3 is a side view showing an outline of a traveling device of a conventional horizontal automatic welding machine.
4 is an enlarged view taken along arrow IV-IV in FIG. 3;
5 is a VV arrow view of FIG. 4;
[Explanation of symbols]
1 plate 2 plate 3 groove part 3a upper groove surface 5 automatic welding machine 6 traveling carriage 7 welding machine 8 welding torch 24 wheel 25 electromagnet 26 permanent magnet 27 copying roller

Claims (2)

In the traveling device of a horizontal automatic welder that welds by running the automatic welder sideways along the horizontal groove that butt welds the vertical upper and lower plates , on the back of the traveling carriage equipped with the welder , together with the incorporation of the so electromagnets as to cause the suction force to the surface of the vertical plate, mounting a permanent magnet to the upper end position of the running posture of the traveling vehicle, and the traveling vehicles butt welding the plates of the upper and lower the front and rear side portions of the traveling carriage so that it can travel upward opening crest of the groove portion as a rail, the copying rollers, so as to roll constantly in contact with the upper opening crest of the groove portion Niso respectively A traveling apparatus for a lateral automatic welding machine, wherein the traveling carriage is traveled sideways so as to be rotatably mounted and supported so that the copying roller contacts and rolls on the upper groove surface of the groove portion .   The traveling device for a lateral automatic welding machine according to claim 1, wherein the traveling carriage is caused to travel slightly upward from the horizontal.

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