JPH10156539A - Forward and backward selecting type welding carriage - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the welding workability by easily changing selecting the forward or the backward welding carriage with a lever operation, easily changing the angle of a running wheel against the body of welding carriage, executing parallel running against a material to be executed with fillet welding even when freely changing the running direction while welding and fixing the dimension of copying wheel from the body of welding carriage to the material to be executed with fillet welding in the same before and behind. SOLUTION: A running wheel of the forward and backward selecting type welding carriage 1 is attached with a shaft 7 being inserted to a shaft 6 connected through a turning bearing 5 attached to a connecting tool 4 with running parts belonging to an external steel plate 3 of the body. The running wheel is begun to run by being transmitted with the requiring power to run which is generated by a driving motor with a gear attached fixedly to the shaft 7 with bolts, a gear attached to a shaft of the driving motor and an intermediate gear. Further, a holding and regulating mechanism of a welding torch 15 and its controlling part are provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a welding bogie used for automating fillet welding work of a structure, and more particularly, to switching between forward and backward traveling directions of a welding bogie only by lever operation. It is about the mechanism that can be done.

[0002]

2. Description of the Related Art In a conventional welding bogie, the direction in which the vehicle can travel while welding is specified by how to attach copying wheels having different lengths taken out of the main body of the welding bogie. Therefore, when a welding cart is used, welding work is performed in preparation for right and left use. If it is desired to change the traveling direction, it is necessary to adjust the mounting dimensions of the copying wheels before and after the welding bogie using a hand tool.

[0003]

SUMMARY OF THE INVENTION In a conventional welding cart,
When performing fillet welding work, it is only possible to perform welding in a certain direction unless adjustment of the profiling wheel is performed.In addition, to maintain the proper distance from the welding trolley to the welding point, there are profiling wheels with different lengths taken out before and after the welding trolley. In this method of adjusting the copying wheel, loosen the attachment to the body using screws etc. using a hand tool, and if the distance from the welding bogie main body to the tip of the copying wheel is not adjusted by taking in and out the copying wheel support bracket, proper traveling There is a problem that the state cannot be obtained, and if the vehicle travels in the opposite direction, the welding bogie moves away from the welding location, so that both directions cannot be easily used by the same welding bogie.
Further, the copying wheel for guiding the welding bogie to the welding location with appropriate dimensions is also of a fixed type that is tightened with screws or the like, and the adjustment may be out of order due to the effect of carrying or vibration during work. In such a case, a displacement occurs in the welding portion, so that proper welding cannot be performed, and thus a work for adjusting the copying wheel occurs. SUMMARY OF THE INVENTION It is an object of the present invention to provide a welding bogie that can easily change both the forward and backward directions by operating only a switching lever of a traveling direction without adjusting the copying wheel by the above-described accompanying work.

[0004]

In order to achieve the above-mentioned object, in the forward / reverse switching type welding bogie according to the present invention, the traveling wheels of the welding bogie are angled with respect to the welding bogie main body by a switching operation using a lever. By changing, the force in the direction in which the welding trolley contacts the welding point in the traveling direction is applied in the same way that the distance to the welding point of the copying wheel in the conventional welding trolley differs before and after the welding trolley. It will be. Therefore, appropriate fillet welding can be performed without leaving the welding location. In the case of this forward / reverse switching type welding bogie as well, a copying wheel is required to guide the MIG welding torch to the welding location with appropriate dimensions, but unlike the conventional welding bogie, a fixed copying wheel that does not require adjustment Therefore, a situation in which proper adjustment of the copying wheel is out of order due to the effects of carrying or vibration during work does not occur.

[0005]

In the forward-reverse switching type welding bogie according to the present invention, the traveling wheels are angled with respect to the welding bogie main body so that the welding bogie always comes into contact with the welding point parallel to the traveling direction. A force is applied, and it is possible to travel along the fillet welding spot while maintaining an appropriate distance without leaving the welding spot. In addition, since the copying wheel is of a fixed type, it is difficult for the deviation to occur, so that stable conditions can be maintained for the welding quality.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a welding vehicle having a switchable forward / reverse drive; FIG. A shaft (7) is attached which is inserted into a bearing (6) connected via a turning bearing (5) attached to a connection fitting (4) with an attached traveling part. The traveling wheel (2) has a gear A fixed to a shaft (7) with bolts (8).
(9) and gear B (12) with shaft of drive motor (11)
And a drive motor (11) driven by the relay gear C (10).
The power required for traveling generated by the vehicle is transmitted to start traveling.

In the embodiment shown in FIG. 2, the copying wheel (1
4) is fixed to the front and rear of the forward / reverse selectable welding bogie (1), and is brought into contact with the material (13) to be subjected to the fillet welding, so that the welding torch (15) and the fillet weld location (16) are maintained at appropriate dimensions. ing.

In the embodiment shown in FIG. 3, when the traveling state of the forward / reverse switching type welding bogie (1) is viewed from above, the traveling wheel (2) is moved in the traveling direction with respect to the outer steel plate (3) of the welding bogie main body. It faces diagonally to the side. Further, the copying wheel (14) fixed to the outer steel plate (3) of the welding bogie main body is attached to the front and rear with the same dimensions. As a result, in the forward and backward directions, the forward / backward switchable automatic welding trolley (1) maintains the proper distance while maintaining the directivity of contacting the welding location with the material (13) to be subjected to fillet welding. Parallel running is possible.

The perspective view of FIG. 4 shows the positional relationship between the forward / reverse switchable welding trolley (1), the material (13) for fillet welding, and the copying wheel (14). The dimensions from the welding trolley of the copying wheel (14) attached to the front and rear of the welding trolley to the material (13) for fillet welding are the same.

[0010]

Since the present invention is configured as described above, it has the following effects. By adding a function that can easily change the angle of the traveling wheel of the welding cart with respect to the main body of the welding cart by lever operation, it can be used as a material to perform fillet welding even if the traveling direction while welding is changed freely. On the other hand, it became possible to obtain parallel running. In addition, since the dimensions of the copying wheel from the body of the welding bogie to the material for performing the fillet welding may be the same both before and after, the copying wheel is of a fixed type, so that it is not necessary to adjust the length of taking out the copying wheel from the body of the welding bogie. Therefore, since the take-out length of the copying wheel is not fixed by screws or the like, it does not become out of order due to the effects of carrying or vibration during the work, and it is possible to eliminate the adjustment work of the copying wheel that occurred in the conventional welding cart. In addition, poor welding accuracy due to poor adjustment does not occur.

[Brief description of the drawings]

FIG. 1 is a sectional view of the present invention.

FIG. 2 is a sectional view of the present invention.

FIG. 3 is a plan view of the present invention.

FIG. 4 is a perspective view showing a use state of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 forward / reverse switchable welding trolley 2 running wheel 3 outer steel plate 4 connection metal fitting 5 bearing 6 bearing 7 shaft 8 bolt 9 gear A 10 gear C 11 drive motor 12 gear B 13 material 14 copying wheel 15 welding torch 16 fillet welding spot

Claims (1)

[Claims] A traveling wheel (2) of a welding bogie (1) can be easily moved in both forward and backward directions by simply switching a lever (3) with respect to a welding portion without adjusting a copying wheel (4). The present invention relates to a forward / reverse switchable welding bogie characterized by being able to travel at an appropriate distance.