JPH07155941A - Portable type fusion cutting machine - Google Patents

Abstract

PURPOSE:To provide a portable type fusion cutting machine capable of executing cutting in an orthogonal direction as well without laying a guide rail again. CONSTITUTION:A torch supporting shaft 5 of a portable type fusion cutting machine constituted by supporting a fusion cutting torch 4 on a traveling truck 2 moved by being guided by the guide rail 1 is supported on a cross moving device 3 movably in and out in a direction orthogonal, in plane view, with the moving direction of the truck. The cross moving device 3 is mounted at the traveling truck 2 so that the cutting operation in two-dimensional directions is made possible.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable fusing machine used for cutting strip-shaped strips from small steel plates or scraps.

[0002]

2. Description of the Related Art Generally, when a part is cut from a steel sheet by fusing, the data is formed by nesting each part in advance and the data is cut by an NC fusing device. A portable fusing machine is used for cutting strip-shaped strips from small-area steel sheets.

In this portable fusing machine, a guide rail for guiding a traveling carriage holding a fusing torch is installed along a cutting line, and the traveling carriage is caused to travel along the guide rail, whereby a steel plate can be fused in a straight line. It is configured as follows.

[0004]

However, in the case of the conventional portable fusing machine, the fusing torch is supported on the torch support shaft so that the vertical height can be adjusted, and the torch support shaft is fixedly supported on the traveling carriage. Was there. For this reason, the conventional portable fusing machine can only cut a straight line in one direction, and when cutting a strip-shaped strip, cut the straight line once and place the guide rail in a state orthogonal to the cutting line. Since it has to be laid again and cut again in a state orthogonal to the cutting line, there is a problem that the cutting work is troublesome and the accuracy of the orthogonality of the intersecting straight lines becomes low. It is an object of the present invention to provide a portable fusing machine capable of cutting in the orthogonal direction without laying a guide rail again, paying attention to such a point.

[0005]

In order to achieve the above-mentioned object, the present invention provides a lateral movement device with a torch support shaft supporting a fusing torch so as to be vertically movable in a horizontal direction and in a cart movement direction and in a plan view. It is characterized in that it is supported so that it can move back and forth in the orthogonal direction, and that this lateral movement device is attached to a traveling carriage to enable cutting work in two-dimensional directions.

[0006]

In the present invention, the torch support shaft that supports the fusing torch so that it can move up and down is supported by the lateral moving device so that it can move forward and backward in a direction orthogonal to the moving direction of the carriage in plan view, and this lateral movement is performed. Since the device is attached to the traveling carriage and the cutting work can be performed in the two-dimensional direction, it is possible to cut in two orthogonal directions without re-installing the guide rails, and to easily cut the strip material. You will be able to

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The drawings show an embodiment of the present invention, FIG. 1 is a schematic perspective view of a portable gas fusing machine, FIG. 2 is a front view of a portable gas fusing machine, FIG. 3 is a plan view thereof, and FIG. It is a side view.

In this portable type gas fusing machine, a lateral movement device (3) is arranged on one side upper surface in the traveling direction of a traveling carriage (2) which is linearly guided by a guide rail (1), and the lateral movement is performed. The device (3) supports the torch support shaft (5) of the fusing torch (4) so that it can move in and out in a direction orthogonal to the traveling direction of the traveling carriage (2), and the fusing torch (5) is supported on the torch support shaft (5). 4) is supported so that it can be adjusted up and down.

The lateral moving device (3) is provided with a drive mechanism (7) for the torch support shaft (5) inside the casing (6) and a speed adjusting mechanism (not shown), and the casing (6) An electric motor (9) capable of rotating in the forward and reverse directions, which constitutes a part of the operating mechanism (8) of the speed adjusting mechanism and the drive mechanism (7), is arranged outside.

As shown in FIG. 5, the drive mechanism (7) includes a drive V pulley (10) connected to the electric motor (9) and a drive V pulley (10) above the drive V pulley (10). The presser roller (11) is arranged so as to face the pulley (10), and a pair of upper and lower support rollers (12) are arranged at a predetermined interval in the direction in which the torch support shaft (5) moves in and out. The roller (11) and the support roller (12) are formed by arranging a pair of radial ball bearings (14) at regular intervals on a roller support shaft (13) arranged parallel to the traveling direction of the traveling carriage (2). There is.

On the other hand, the torch support shaft (5) is the fusing torch (4).
The drive mechanism is formed in a rectangular cross section except for the part that supports the
Supported by (7). This allows the torch support shaft (5)
Is mounted between the upper and lower support rollers (12) and between the driving V-pulley (10) and the pressing roller (11) so as to be able to move back and forth.

That is, the rectangular section of the torch support shaft (5) is clamped from above and below while the inner peripheral edge of the radial ball bearing (14) of the upper and lower support rollers (12) contacts the inclined surface section. The inner peripheral edge of the radial ball bearing (14) of the presser roller (11) is abutted against the downward opening inclined surface of the drive V pulley (10) while receiving the upward opening inclined surface, and is clamped from above and below. become.

Then, the driving V is driven by the operation of the electric motor (9).
When the pulley (10) rotates, the torch support shaft (5) and the drive V
Since the pulley (10) is in surface contact with the pulley (10), the torch support shaft (5) is moved in and out with the rotation thereof. At this time, since the other rollers (11) and (12) are in point contact with the torch support shaft (5) and are composed of the radial ball bearing (14), they rotate without resistance. The torch support shaft (5) moves in and out according to the amount of rotation of the electric motor (9).

Reference numeral (15) in the figure denotes a torch holding shaft supported by a torch support shaft (5) so as to be adjustable up and down, and a holding tool (16) of the fusing torch (4) is attached to the torch holding shaft (15). The fusing torch (4) is fixed to the holder (16) so as to be swingably adjustable about a horizontal axis.

In the portable gas fusing machine configured as described above, the traveling carriage is operated without operating the lateral movement device (3).
By moving (2) along the guide rail (1), a straight line parallel to the guide rail (1) can be cut, and the lateral moving device can be moved without moving the traveling carriage (2).
By operating only (3), it is possible to cut a straight line that is orthogonal to the laying direction of the guide rail (1) in plan view, and it is possible to cut out the strip material without laying the guide rail (1) again. become able to. Further, within the stroke range of the torch support shaft (5), it is possible to cut parallel straight lines and orthogonal straight lines without re-installing the guide rail (1), and to install the guide rail (1) once. You will be able to cut out multiple strips with.

In the above embodiment, a part of the torch support shaft (5) has a circular cross section to form a torch support, but the torch support shaft (5) may have a rectangular cross section. Further, in the above embodiment, the gas fusing torch is used as the fusing torch, but the fusing torch may be a plasma fusing torch or a laser beam torch.

[0017]

According to the present invention, the torch support shaft for supporting the fusing torch in a vertically movable manner is supported by the lateral moving device so as to be able to move in and out in a direction orthogonal to the carriage moving direction in a plan view. Since the lateral movement device is attached to the traveling carriage to enable cutting work in two-dimensional directions, it is possible to cut in two directions orthogonal to each other without re-installing the guide rails. The strip material can be cut out from the shaped steel sheet by a simple operation.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of a portable gas fusing machine.

FIG. 2 is a front view of a portable gas fusing machine.

FIG. 3 is a plan view of a portable gas fusing machine.

FIG. 4 is a left side view of the portable gas fusing machine.

FIG. 5 is a schematic perspective view showing a torch support shaft drive mechanism.

[Explanation of symbols]

1 ... Guide rail, 2 ... Traveling cart, 3 ... Lateral movement device, 4
... Fusing torch, 5 ... Torch support shaft, 7 ... Torch support shaft drive mechanism, 9 ... Electric motor, 10 ... Drive V-pulley, 11 ... Pressing roller, 12 ... Support roller, 14 ... Radial bearing.

Claims (2)

[Claims] 1. A traveling carriage (2) which is guided and moved by a guide rail (1) arranged corresponding to a steel plate to be cut, and a fusing torch (4) equipped on this traveling carriage (2). In a portable fusing machine, the fusing torch (4) is supported on the torch support shaft (5) in a vertically adjustable manner, and the torch support shaft (5) is mounted on the lateral movement device (3) along the plane of movement of the carriage and the plane. Portable fusing, characterized in that it is supported so that it can move in and out in a direction orthogonal to the visual direction, and that this lateral movement device (3) is attached to the traveling carriage (2) to enable cutting work in two-dimensional directions. Machine. 2. At least a drive mechanism for the torch support shaft (5)
The part that engages with (7) is formed in a rectangular cross section whose diagonals are positioned horizontally and vertically, and the drive mechanism (7) of the torch support shaft (5) is driven by an electric motor (9) so that it can rotate forward and backward. The V-pulley (10) is composed of a holding roller (11) and a pair of upper and lower supporting rollers (11) arranged so as to be in contact with the slope of the torch support shaft (5). Support roller (1
The portable fusing machine according to claim 1, wherein each of 2) is composed of a pair of radial bearings (14).