JPS6023100Y2 - Gas cutting machine for shaped steel - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a gas cutting machine for section steel that cuts section steel such as H section steel, and more specifically, a guide rail 2 fixed to the section steel 6 to be processed, and a gas cutting machine for cutting section steel such as H section steel. A machine base 1 that can freely run along a guide rail 2, a first movable rail 3 that is attached to the machine base 1 and is movable in a longitudinal direction orthogonal to the guide rail 2, and this first movable rail 3. A second movable rail 4 connected to one end and movable in a longitudinal direction perpendicular to each of the guide rail 2 and the first movable rail 3; and a second movable rail 4 rotatably held at one end of the second movable rail 4. gas cutting torch 5, and three directions X? which are orthogonal to each other.
The gas cutting torch 5 is given a degree of freedom of movement in Y'*Z and a degree of freedom of rotation in a plane including the two orthogonal directions x and z between the guide rail 2 and the second movable rail 4. This relates to a gas cutter for shaped steel.

When it comes to cutting steel sections with mutually perpendicular plate surfaces, such as H-beams, H-beams, and U-beams, most of the cutting involves cutting in the transverse direction of the steel section, which is why conventional As shown in FIG. 1, the gas cutting machine for shaped steel has a guide rail 2 attached to the shaped steel 6 to be processed in a direction orthogonal thereto, so that the machine base 1 can run freely along this guide rail 2. A movable rail 4 that is movable in the longitudinal direction perpendicular to the guide rail 2 and the shaped steel 6 to be processed is attached to this machine base 1, and a gas cutting torch 5 is rotatably held at one end of the movable rail 4. It consisted of

As shown in FIG. 2, when cutting H-beam steel, the first step (■-■) is completed, and the flange of the copper to be treated 6 is cut by moving the movable rail 4 and moving the gas cutting torch 5 upward. Next, the machine base 1 is moved along the guide rail 2 and the gas cutting torch 5 is rotated to enter the second step (2)--2, in which the web is cut by moving the machine base 1 along the guide rail 2.

Thereafter, the gas cutting torch 5 is moved to the outside of the other flange, and the movable rail 4 is moved to lower the gas cutting torch 5 to proceed to the third step (1)-(2) in which the flange is cut from the outer surface.

As a result, it is possible to perform a straight cut as shown in FIG. This allows diagonal cutting as shown in Figure 3.

By the way, the cutting work that can be done on shaped steel is not only the above-mentioned straight cutting, but also sometimes the cutting work shown in Figures 10a and 10b.
As shown in , c, there are cases where the entire web is left and only the flange is cut to leave a part of the reweb, or only the web is cut.

However, such a cut cannot be made with the conventional gas cutting machine.

The present invention was devised in view of these points, and its purpose is to provide a gas cutting machine for shaped steel that increases the degree of freedom in cutting processing and can accommodate a wider variety of cutting methods. It is in.

The present invention will be described below in detail based on illustrated embodiments. FIG. 4 is a perspective view of one embodiment, FIG. 5 is an exploded perspective view, FIG. 7 is a front view, FIG. 8 is a side view, and FIG. 9 is a perspective view of one embodiment. 1 is a reduced plan view, and this gas cutting machine is composed of a machine stand 1, a guide rail 2, first and second movable rails 3, 4, and a gas cutting torch 5.

The guide rail 2 is of the processed type and has a pair of mounting brackets 7, 7 for fixing the guide rail 2 to m6, and at least one of the mounting brackets 7 is movable in the longitudinal direction of the guide rail 2. It is possible to correspond to the size of the shaped steel 6 to be treated.

A pair of parallel protrusions 8, 8 are formed on the upper surface of the guide rail 2, and a groove 9 is formed on the opposite surface of the circumferential protrusions 8.8 over the entire length in the longitudinal direction.

The machine base 1 runs along this guide rail 2, and has four wheels 10 made of metal or synthetic resin on its lower surface that roll in the groove 9 so that each wheel 10 comes into pressure contact with the groove 9. The machine base 1 moves by itself along a guide rail 2 with one wheel 10 driven by a motor 11 and three other freely rotatable wheels 10.

A first movable rail 3 is attached to the machine base 1.

This first movable rail 3 is arranged in a horizontal direction y orthogonal to the direction X of the guide rail 2, and is held by wheels 12 arranged inside the machine base 1 as shown in FIG. , the first movable rail 3 is moved in its longitudinal direction by wheels 12 driven by a motor 13 and other freely rotatable wheels 12.

The wheels 12 for this first movable rail 3 have a total of 8 wheels because the second movable rail 4, which will be described later, is attached to one end of the first movable rail 3, and the moment due to the load changes due to the movement of the first movable rail 3. The first movable rail 3 is supported at four points by using four wheels 12 so that the pair of wheels 12.12 are in pressure contact with the upper and lower chamfered slopes of the side surface of the first movable rail 3, As a result, the deflection of the first movable rail 3 is further prevented than in the case of simply driving for abrasion.

A mounting plate 15 is fixed to one end of the first movable rail 3.

A motor 16 and four wheels 17 including a wheel 17 driven by the motor 16 are attached to the mounting plate 15.

These wheels 17 are in pressure contact with the grooves 18 on both sides, so that the second movable rail 4 can move freely in the longitudinal direction, which is the direction 2 orthogonal to the longitudinal directions X and y of the guide rail 2 and the first movable rail 3, respectively. It is said that

A holder 19 provided at the lower end of the second movable rail 4 holds the gas cutting torch 5 rotatably within a plane including the direction X of the guide rail 2 and the direction 2 of the second movable rail 4.

In this gas cutting machine, the gas cutting torch 5 can be moved in three orthogonal directions x, y, and z as described above.

21 is a bundle, 22 is a clutch bundle, and by employing this clutch bundle 22, the motor 11 and the wheels 10 are
This allows the machine base 1 to run freely on the guide rail 2.

Further, in FIG. 9, 27 is a valve lever, 28 is a cutting oxygen lever, 29 is a preheating gas bundle, 30 is a preheating oxygen bundle, 31 is a cutting oxygen bundle, and 32 is a crater.

Thus, in the present invention, the degree of freedom of movement of the gas cutting torch is ensured in all directions necessary for cutting section steel, and therefore, it is possible to perform not only cutting as shown in FIG.
Cutting as shown in FIG. 10 can be easily and accurately performed, and can be used for a variety of purposes.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a conventional example, FIG. 2 is a front view showing a cutting process of a shaped steel to be treated according to the above, and FIG. 3a. FIG. 4 is a perspective view of the present invention-embodiment, FIG. 5 is an exploded perspective view of the same, and FIG. 6 a is the first movable rail of the same as above. 7 is a front view of the same, FIG. 8 is a side view of the same, FIG. 9 is a reduced plan view of the same, and FIG. 10a is a sectional view of the second movable rail of the same. , b, and c are perspective views of the processed steel section subjected to the cutting process according to the above, respectively, and 1 is a machine stand;
2 is a guide rail, 3 is a first movable rail, 4 is a second movable rail, 8 is a gas cutting torch, and 6 is a processed steel section.

Claims (1)

[Scope of utility model registration request] a guide rail that is fixed to the section steel to be processed; a machine base that is movable along the guide rail; and a first machine that is attached to the machine base and is movable in a longitudinal direction perpendicular to the guide rail.
a movable rail, a second movable rail connected to one end of the first movable rail and movable in a longitudinal direction orthogonal to each of the guide rail and the first movable rail; It is composed of a gas cutting torch held movably, and has a degree of freedom of movement in three mutually orthogonal directions, and a degree of freedom of rotation in a plane including components in two orthogonal directions between the guide rail and the second movable rail. A gas cutting machine for shaped steel, which is equipped with a gas cutting torch.