JPS6320457Y2 - - Google Patents

Description

Detailed Description of the Invention This invention relates to a guide for melt cutting of a flange of an H-shaped steel beam, and more particularly to a guide tool used when cutting out a predetermined portion of the flange of an H-shaped steel beam along the inner web.

When notching the flange of H steel along the line of the web, the conventional practice was to measure the distance from the web to the flange side edge inside the H steel, transfer that length to the flange surface, and write it down. ing. However, when using this method, it is not only complicated and inefficient, but also requires accurate dimensioning and marking due to non-uniformity of dimensions in the web and flange and curved overlay at the joint between the flange and web. It was extremely difficult to form the wire, and therefore it was also extremely difficult to cut it.

In view of these points, this invention aims to provide an optimal guide for notching the flange of H steel along the line of the web.

That is, this invention has a main body consisting of an upper plate and a lower member that have an insertion opening on the front side so that it can be inserted into the flange of H steel from the side, and the upper plate of the main body has an insertion opening. A guide arm for abutting and guiding the crater side of the welding machine extends outward from the upper plate so as to be semi-rotatable to the left and right, and the lower member has a guide arm for abutting against the H steel web. The present invention relates to a guide for fusing a flange of H steel, characterized in that a depth adjustment member is provided in an adjustable manner.

The explanation will be given below according to the attached drawings. FIG. 1 is an overall perspective view of an embodiment of the fusing guide of this invention, a part of which is shown transparently for explanation, and FIG. 2 is the fusing guide of FIG. 1. FIG. 3 is a sectional view showing a state in which the guide is attached to the H steel and cut by melting.

As shown in the figure, the flange cutting guide of this invention has a side portion 3 of the flange 31 of the H steel 30.
It has a main body 10 consisting of an upper plate 11 and a lower member 12 having an insertion opening 13 on the front side that can be inserted from the front side.

The top plate 11 is configured to be brought into close contact with the top surface of the flange 31, as shown in FIG. In the embodiment, permanent magnets 14, 14 are attached to this top plate 11, so that the permanent magnets 14, 14 can be brought into close contact with the flange 31 surface by their magnetic force.

Further, a guide arm 20 is provided on the top plate 11 and extends outward from the top plate. This guide arm 20 is attached to the top plate 11 via a rotating portion 15 located approximately at the center thereof so as to be reversible left and right. This is to enable use in both left and right directions with respect to the flange 31 surface.

As is clear from the usage diagram of FIG. 2, the guide arm 20 is for abutting and guiding the spout 41 of the fusing machine 40, and consists of a backing plate 21 and a collar portion 22 on the back side thereof. A threaded rod 23 is screwed near the tip of the flange 22 to prevent problems such as heating caused by contact with the flange 31 when the guide arm 20 is fused.

In addition to the abutment plate 21 that is parallel to the insertion opening of the main body as in the embodiment, the guide arm 20 can also be integrally provided with a abutment plate 25 that is perpendicular to the abutment plate 21 .
Such an arm also serves as a guide for fusing in the width direction of the flange.

The lower member 12 of the main body is provided with an insertion depth adjusting member 16 that comes into contact with the web 32 inside the H steel. As in the embodiment, this is the tip hanging portion 1 of the lower member 12.
It can be easily constructed by screwing the threaded rod 18 and wing nut 19 onto the threaded rod 7. The insertion depth adjusting members 16 are formed at two or more locations in the left-right direction of the main body 10.

As shown in FIG.
In order to cut the portion 36 of the flange 31 along
The abutment position of the insertion depth adjusting member 16 of No. 2 with the web 32 is adjusted so that the mouthpiece 41 of the fusing machine 40 is set at a predetermined position (line 35). After setting, by moving the mouthpiece 41 of the fusing machine along the backing plate 21 of the guide arm 20, processing at a predetermined position becomes possible.

As described above, according to this invention, it has become possible to carry out this type of fusing operation extremely easily and accurately without having to perform the troublesome sizing or marking operations as in the past.

[Brief explanation of drawings]

Fig. 1 is an overall perspective view of an embodiment of the flange fusing guide of this invention, a part of which is shown transparently for explanation, and Fig. 2 shows the fusing guide of Fig. 1 attached to H steel for fusing. FIG. DESCRIPTION OF SYMBOLS 10... Main body, 11... Upper surface member, 12... Lower member, 13... Insertion opening, 15... Rotating part, 16
...Insertion depth adjustment member, 20...Guide arm,
30...H steel, 31...flange, 32...web, 40...fusing machine, 41...crater.

Claims (1)

[Claims for Utility Model Registration] A main body consisting of an upper plate and a lower member having an insertion opening on the front side so that the flange of H steel can be inserted from the side thereof, and the upper part of the main body A guide arm for abutting and guiding the mouth side of the fuse cutter is provided on the face plate and extends outward from the upper face plate so as to be semi-rotatable to the left and right. A guide for fusing a flange of H steel, characterized in that a contacting insertion depth adjusting member is provided in an adjustable manner.