JPS62192267A - Portable type welding equipment and its carrying car - Google Patents

Abstract

PURPOSE:To weld simultaneously both sides of an anti-deflection material, and to execute smoothly a welding work by combining two or more guide rollers such as pinch rollers, etc. which can copy the copying surface of the anti-deflection material, and two welding torches for executing simultaneously welding of both surfaces of the anti-deflection material. CONSTITUTION:A carrying car 14 is placed in the end part of an anti-deflection material 2, the tip part of a loading base 17 is raised, and also, a claw 19 which has been provided projectingly thereon is hooked and fixed to a steel plate 1. As a result, a welding truck 4 can be run freely. The anti-deflection material 2 which is erected on the steel plate 1 is pinched by pinch rollers 8, and also, two pieces of welding torches 6 of the welding truck 4 are guided exactly to the anti-deflection material 2, and automatic welding is executed simultaneously from both sides of the anti-deflection material 2. According to this equipment and the carrying car, a welding work can be executed very easily, the welding failure can be decreased, and the welding work can be performed smoothly.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a welding device and its transport vehicle, and particularly to a device capable of welding from both sides simultaneously, and a welding device used for welding. It is related to transport vehicles.

<Conventional technology> Conventionally, in order to impart stiffness to a steel plate, flat steel plates and angle-shaped steel plates were cut perpendicularly or nearly perpendicularly to the steel plate.

When welding stiffeners made of bar steel such as valve plates and channel steel, in addition to manually welding, semi-automatically welding, and gravity welding fillet welds at the joints between steel plates and stiffeners, we also perform welding on traveling bogies. - A method in which the bogie is mounted with a truck, the running direction of the bogie is directed to intersect with the weld line, and the running direction is forced to follow the tracing surface of the stiffener using two clubbing rollers, or a large-scale device is used. In the past, a method was used in which a large number of welding devices were mounted on the traveling frame, the weld line of the welded member was placed parallel to the traveling frame, and welding was performed twice from one side.

<Problems to be Solved by the Invention> However, the conventional method using clap rollers has the disadvantage that welding distortion occurs because welding is performed from one side, resulting in secondary problems. On the other hand, although productivity is high in large-scale frame systems, they have the disadvantage of being uneconomical if the capacity of the construction (M') does not correspond to the production volume.

The device according to the present invention is a technology developed to address these drawbacks of the conventional technology, and in particular, it performs fillet welding between steel plates and stiffeners from both sides of the stiffener at the same time, and can simultaneously perform a large number of devices. The aim is to provide a completely new technology that can also be driven, provide production capacity commensurate with production volume, and improve efficiency.

<Means for Solving the Problems> The present invention provides an apparatus for welding a stiffener to a steel plate, in which a pinch point is applied to a position sandwiching the stiffener of a recessed frame traveling bogie that can straddle the stiffener. Install two or more sets of guide rollers such as rollers or clap rollers that can follow the tracing surface of the stiffener, and two sets of welding rollers that can simultaneously weld both sides of the stiffener. This is a portable welding device characterized by a one-ζ configuration.

<Function> The device according to the present invention is operated as described in -1- (by means of a gate-shaped straddle-type cart that pinches the web of the stiffener erected on the steel plate-L with pinch rollers and runs directly on the steel plate). , the two welding torches installed on both sides of the truck are accurately guided to the welding lines on both sides of the stiffener, thereby making it possible to automatically weld from both sides of the stiffener at the same time.

<Example> An example of the welding apparatus according to the present invention will be explained in detail with reference to the drawings. In FIG. The materials 2 are arranged in parallel and stand up. 3 shows the fillet weld of the joining part between the steel plate 1 and the stiffener 2, and 5 shows the gate-shaped frame traveling bogie installed so as to straddle the stiffener 2 of the 4-bargo. These are the wheels of the truck 4 and are configured to run on the steel plate 1. Reference numeral 6 denotes a welding torch which is independently held on the trolley 4 at corresponding positions on both sides of the stiffener 2, 7 is a wire and a wire feeder for transmitting the welding core wire and electric power to the torch 6, and 8 is a feeder for the wire that transmits the welding core wire and electric power to the torch 6. 10 is a guide pinch roller provided at 9, and 9 is an operation panel for this device.

In the first embodiment, an example in which an angle member is used as the stiffener 2 has been described, but the stiffener 2 may also be a bar steel such as a flat steel, an angle steel, or a channel steel.

In order to clarify the pinch roller 8 described in the above embodiment, the pinch roller 8 will be explained with reference to FIG.
are constructed of two or more pairs so as to respectively hold the contoured surfaces on both sides of the stiffener 2 erected on the steel plate 1, and are each attached to the truck 4.

Although the above embodiment has been described using the pinch roller 8, it is also possible to use two or more clubbing rollers 10 as shown in FIG. 3 as the guide device. In this case, the clamping roller ] 0 and the stiffener 2
The traveling direction of the truck 4 is tilted toward the tracing surface so that the line connecting the contact points of the tracing surface (web) intersects the traveling direction 11 with respect to the traveling direction of the truck 4, so that the truck 4 always runs into the tracing surface and is driven. This allows the trolley 4 to automatically follow the tracing surface.

Next, FIG. 4 is an explanation showing the operation of the welding start and end points of the above-mentioned welding device and the positional relationship of the ends of the stiffener 2 attached to the steel plate 1 in the welding work of the steel plate 1 and the stiffener 2. It is a diagram. In the figure, 12 indicates the start point of welding, and 13 indicates the end point of welding. As shown in the figure, there are three types of relative positional relationships between the edge of the steel plate 1 and the end of the stiffener 2. Therefore, the cart 4 at the welding position may come off the edge of the steel plate 1. When using this equipment, countermeasures must be taken in this case.

The device shown in FIG. 5 is a transport vehicle that can support the welding trolley 4 when it comes off the edge of the steel plate 1, and includes:
These are used at the starting point 12 and ending point 13 of the welding operation described above, respectively.

To explain one embodiment in detail with reference to the drawings, reference numeral 14 denotes a transport vehicle having a wheel 15 at the bottom, a concave operation handle 16 is erected at the rear end, and the central part of the transport vehicle 14 is A mounting base 17 on which the steel plate 1 can be mounted is attached via a hinge 18 so as to be able to rise and fall freely, and a claw 19 that can be hooked onto the surface of the steel plate 1 is protruded from the tip of the mounting base 17. Further, a hoisting winch 20 is attached to the handle 16.
is provided, and is configured to wind up the tip of the mounting base 17 via the wire 21.

When using this carrier 14, as shown in FIG.
A transport vehicle 14 is arranged on each edge of the mounting base 17, and the tip of the mounting base 17 is lifted up, and the protruding claw 19 is hooked onto the edge of the steel plate 1, thereby fixing the mounting base 17 and the transport vehicle 14. In this state, the welding cart 4 is mounted on the mounting base 17 of the transport vehicle 14,
Moreover, by running the trolley 4, it is possible to prevent the trolley 4 from falling off the edge of the steel plate 1 when welding the end of the stiffener 2.

<Effects of the Invention> Since the apparatus according to the present invention has the above-described structure and operation, it is possible to simultaneously weld the left and right fillet welds of the stiffeners parallel to the steel plate, and therefore the welding work is extremely easy. By using the transport vehicle according to the present invention, the time required for welding can be significantly shortened, distortion caused by conventional one-sided welding can be completely eliminated, and welding defects can be significantly reduced. The welding cart has the feature that the end portion of the stiffener can be welded extremely smoothly and reliably without coming off the edge of the steel plate.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram showing the device according to the present invention and an example of its use, Figs. 2 and 3 are explanatory diagrams of guide rollers, respectively, Fig. 4 is an explanatory diagram showing the start and end points of welding, and Fig. 5 and FIG. 6 are explanatory diagrams of the transport vehicle. 1 is an m plate, 2 is a stiffener, 4 is a trolley, 6 is a welding torch, 8
10 is a pinch roller, 10 is a clap roller, 14 is a transport vehicle, 16 is a handle, 17 is a mounting base, 19 is a claw, and 21 is a wire.

Claims (2)

[Claims] (1) In a device that welds a stiffener to a steel plate, the tracing surface of the stiffener is traced to a position that sandwiches the stiffener on a gate-type frame traveling bogie that can straddle the stiffener. A portable welding system characterized by being constructed by installing two or more sets of guide rollers such as pinch rollers or clubbing rollers that can perform welding on both sides of a stiffener, and two sets of welding torches that can simultaneously weld both sides of a stiffener. Device. (2) A mounting platform on which a welding cart can be mounted is attached so that it can be raised and lowered, and a protruding claw that can be hooked onto a steel plate is provided at the tip of the mounting platform, and wheels are provided at the bottom to allow it to move freely. A transport vehicle characterized by: