JP2665875B2 - Mounting method and apparatus for traveling rail for welding robot - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for mounting a traveling rail for a welding robot for automatically welding an outer periphery of a joint of a square or round steel column.

[0002]

2. Description of the Related Art Conventionally, a traveling rail for a welding robot is mounted on a joint between each support point of the traveling rail and a steel column while a plurality of workers support the traveling rail around a square or round steel column. The distance between the groove and the groove forming the portion is measured by a scale, and the traveling rail is attached to a regular position.

[0003]

However, it is not easy to determine a proper position under an unstable temporary support state by hand, and therefore, a large amount of time and labor is required for the rail mounting operation.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and a first object of the present invention is to provide a method of mounting a traveling rail for a welding robot, which can efficiently perform a rail mounting operation in a short time. It is in.

It is a second object of the present invention to provide an apparatus for mounting a traveling rail for a welding robot suitable for carrying out the above method.

[0006]

SUMMARY OF THE INVENTION In order to achieve the first object, the present invention provides, as set forth in claim 1,
A method for mounting a traveling rail for a welding robot for automatically welding the outer periphery of a joint of a square or round steel column, provided on a groove surface constituting the joint of the steel column, below a rail mounting jig. A plurality of rail mounting jigs are arranged on the outer periphery of the steel column by applying a positioning member and fixed by a first magnet, and then an annular traveling rail is mounted on the rail mounting jig. Next, using an adjusting screw, a magnet guide, and a second magnet provided in advance on the traveling rail,
The second magnet is moved toward the steel column by the adjustment screw along the magnet guide and fixed to the outer periphery of the steel column, and the second magnet is made uniform by making the entrance and exit dimensions of the adjustment screw in the traveling rail uniform. After pressing against the outer periphery of the steel column, the rail mounting jig is removed from below the traveling rail.

In order to achieve the second object,
As set forth in claim 2, the present invention provides a plurality of rail mounting jigs which are disposed in contact with the outer periphery of a square or round steel column, and each of the rail mounting jigs is provided at a lower portion of the rail mounting jig. A positioning member applied to a groove surface forming a joint portion of the steel column; a first magnet provided on the rail mounting jig and removably fixed to the outer periphery of the steel column; An annular traveling rail formed by connecting the magnets, a magnet guide provided on the inner periphery of the traveling rail so as to extend toward the outer periphery of the steel column, and each of the magnet guides is movably fitted to the magnet guide. A magnet mounting bracket, a second magnet mounted in the magnet mounting bracket, and an adjusting screw screwed into the traveling rail to push the magnet mounting bracket toward the outer periphery of the steel column.

[0008]

According to the structure of the first aspect, after the rail mounting jig is fixed to the regular position on the outer periphery of the steel column using the positioning member and the first magnet, the rail mounting jig is placed on the rail mounting jig. Place an annular traveling rail, and in this temporarily supported state,
After adjusting and fixing the distance between the running rail and the outer periphery of the steel column using the adjusting screw, the magnet guide and the second magnet, the rail mounting jig is removed to complete the mounting operation.

According to the second aspect of the present invention, the method is performed by mounting the rail mounting jig, mounting the traveling rail on the rail mounting jig, and adjusting the position of the traveling rail. I do.

[0010]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view showing an apparatus for attaching a traveling rail for a welding robot, and FIG.
FIG. 3 is a sectional view taken along line AA of FIG. 1 showing a fixing mechanism; FIG. 3 is an enlarged view of a part B of FIG.
FIG. 4 is a view showing a mechanism for adjusting and fixing the distance between the traveling rails.
FIG. 5 is a sectional view taken along line D-D of FIG. 4, and FIG. 6 is a view corresponding to FIG. 3 showing another example of the assembly structure of the traveling rail.

In these figures, 1 is a square or round steel column (round in the embodiment), 2 is a plurality of rail mounting jigs arranged in contact with the outer periphery of the steel column 1, and 3 is an annular jig. It is a running rail.

A first magnet 4 is provided on the upper side of the rail mounting jig 2 to be in contact with the outer periphery of the steel column 1, a rail support surface 5 is provided on the upper side, and a rail support surface 5 is provided on the lower side. A positioning member 6 protruding forward from the contact surface level of the first magnet 4 is provided.

The running rail 3 has an assembled structure that can be easily arranged on the outer periphery of the steel column 1. That is, as shown in FIG. 3, a pair of joint pieces 7 overlapping each other are provided on the inner periphery of each butted end of the plurality of rail pieces 3a and 3b.
a, 7b are mounted respectively, and the overlapping portions of the joint pieces 7a, 7b are connected by bolts 8. The structure is not limited to this assembling structure. For example, as shown in FIG.
A convex portion 10a and a concave portion 10b are formed on opposite sides of a pair of joint pieces 9a, 9b attached to the inner periphery of the respective butted ends of the joint pieces a, 3b. One end of the bolt 11 is pivotally connected, and a step 13 on which the nut 12 screwed to the bolt 11 engages is formed on the other joint piece 9b.
a and 9b may be fastened.

Below the running rail 3, a rack 14 is provided which is continuous when the running rail 3 is assembled.

As shown in FIG. 4, a U-shaped magnet guide 15 extending toward the outer periphery of the steel column 1 and having an opening is provided on the inner periphery of the traveling rail 3 at a plurality of intervals. Each magnet guide 15 contains a magnet 1
A magnet mounting bracket 17 for mounting and supporting the magnet 6 is movably fitted, and the traveling rail 3 (which may be the bottom of the magnet guide 15 as shown in the figure) is provided with a magnet facing the outer periphery of the steel column 1. An adjusting screw 18 for pushing out the mounting bracket 17 is screwed.

According to the above configuration, the joint portion 19 of the steel column 1 is provided.
In the case of automatically welding the outer periphery of the steel column, first, the joint 1
The positioning member 6 provided at the lower part of the rail mounting jig 2 is applied to the groove surface 19 a or 19 b (in the embodiment, the lower groove surface 19 a) constituting the 9, so that a plurality of rails The mounting jig 2 is arranged in abutment and fixed to the outer periphery of the steel column 1 by the first magnet 4.

Next, the annular traveling rail 3 is placed on the rail mounting jig 2, and in this temporarily supported state, the adjusting screw 18, the magnet guide 15, and the second magnet previously provided on the traveling rail 3 are provided. 16 and adjusting screw 18
The second magnet 16 is moved along the magnet guide 15 toward the outer periphery of the steel column 1 by the
, And the distance t between the traveling rail 3 and the outer periphery of the steel column 1 is adjusted by making the in-and-out dimension t of the adjusting screw 18 in the traveling rail 3 uniform, so that the outer periphery of the steel column 1 The second magnet 16 is pressed.

Thereafter, the rail mounting jig 2 is removed from below the traveling rail 3 to complete the mounting operation.

When the traveling rail 3 is to be removed, the rail mounting jig 2 is reversed as shown by the imaginary line in FIG.
The rail mounting jig 2 is fixed to the steel column 1 by the first magnet 4 while the positioning member 6 is retracted so as not to contact the steel column 1, and the traveling rail 3 is supported by the rail mounting jig 2. Remove it.

[0021]

As described above, according to the present invention, there is provided a method for mounting a traveling rail for a welding robot for automatically welding the outer periphery of a joint of a square or round steel column. Yes, on the groove face constituting the joint of the steel column,
Apply the positioning member provided at the bottom of the rail mounting jig,
A plurality of rail mounting jigs are arranged on the outer periphery of the steel column,
Then, an annular traveling rail is placed on the rail mounting jig. Next, an adjustment screw, a magnet guide, and a second
Using the magnet of the above, the second magnet is moved toward the steel column by the adjusting screw along the magnet guide and fixed to the outer periphery of the steel column, and the entrance and exit dimensions of the adjusting screw in the traveling rail are made uniform. After the second magnet is pressed against the outer circumference of the steel column, the rail mounting jig is removed from the lower part of the running rail to complete the mounting operation, and the rail mounting jig is fixed at a regular position on the outer circumference of the steel column. Then, an annular traveling rail is placed on the rail mounting jig, and in this temporarily supported state, the distance between the traveling rail and the outer periphery of the steel column can be adjusted and fixed. For this reason, a small number of people (one person is acceptable)
And can be performed accurately and efficiently in a short time. After the traveling rail is mounted, the rail mounting jig is removed, so that the welding operation can be performed without being obstructed by the rail mounting jig.

According to a second aspect of the present invention, there is provided a rail mounting jig which is disposed in contact with an outer periphery of a square or round steel frame, and A positioning member provided at a lower portion and applied to a groove surface constituting a joint portion of the steel column; and a first member provided at the rail mounting jig and removably fixed to an outer periphery of the steel column. An annular traveling rail formed by connecting a plurality of rail pieces, a magnet guide provided on the inner periphery of the traveling rail so as to extend toward the outer periphery of the steel column, and the magnet guide And a second magnet mounted in the magnet mounting bracket, each of which is movably fitted to the mounting bracket, and a screw which is screwed to the traveling rail to push the magnet mounting bracket toward the outer periphery of the steel column. Due to a screw, the mounting of the rail mounting jig, by performing the placement and alignment of the running rail of the running rail into the rail mounting jig on, it is possible to reliably carry out the above method.

[Brief description of the drawings]

FIG. 1 is a plan view showing a mounting device for a traveling rail for a welding robot according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along line AA of FIG. 1 showing a positioning / fixing mechanism of the rail mounting jig.

FIG. 3B shows an example of a traveling rail assembly structure.
It is a part enlarged view.

FIG. 4 is an enlarged view of a portion C in FIG.

FIG. 5 is a sectional view taken along the line DD of FIG. 4;

FIG. 6 is a view corresponding to FIG. 3, showing another example of a traveling rail assembly structure.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 steel column 2 rail mounting jig 3 running rail 4 first magnet 6 positioning member 15 magnet guide 16 second magnet 17 magnet mounting bracket 18 adjusting screw 19 joint 19 a, 19 b groove surface

Continuation of the front page (51) Int.Cl. ⁶ Identification code Agency reference number FI Technical display location B23K 9/12 331 8509-4E B23K 9/12 331A (72) Inventor Takashi Okawa 6-2 Ginza, Chuo-ku, Tokyo No. 10 Inside Tomoe Corporation (56) References JP-B-56-34399 (JP, B2)

Claims (2)

(57) [Claims] 1. A method for mounting a traveling rail for a welding robot for automatically welding an outer periphery of a joint of a square or round steel column, wherein a rail mounting jig is provided on a groove surface forming the joint of the steel column. A plurality of rail mounting jigs are arranged on the outer periphery of the steel column by applying a positioning member provided at a lower portion of the steel column, and fixed by a first magnet, and then an annular traveling rail is placed on the rail mounting jig. and, then, a plurality of adjustment screws are preliminarily provided in the running rail, a magnet guide and second
Using a magnet, the second magnet is moved along the magnet guide by the adjusting screw toward the steel column and fixed to the outer periphery of the steel column, and the entrance and exit dimensions of the adjusting screw in the traveling rail are made uniform. And pressing the second magnet against the outer periphery of the steel frame column, and then removing the rail mounting jig from below the traveling rail. 2. A plurality of rail mounting jigs which are disposed in contact with the outer periphery of a square or round steel column, and are respectively provided below the rail mounting jig to constitute a joint portion of the steel column. An annular member configured by connecting a plurality of rail pieces to a positioning member applied to a groove surface, a first magnet provided on the rail mounting jig and removably fixed to an outer periphery of the steel column; a traveling rail, a plurality which is provided so as to extend toward the outer periphery of the steel column inner periphery of the running rail
And pieces of the magnet guides, a second magnet mounted on each movably mated magnet mounting member and the magnet mounting member in the said magnet guide, the magnet mounting member is screwed to the running rail An installation device for a traveling rail for a welding robot, comprising: an adjustment screw for pushing out toward an outer periphery of a steel column.