JPH08112720A - Cutting machine and positioning method for large-sized material - Google Patents

Abstract

PURPOSE: To easily and fitly position a large-sized material at a fixed position relative to a cutting head on a work table. CONSTITUTION: A work table 3 for supporting a large-sized material W is provided, and a cutting head 7 equipped with a cutting edge 5 is provided on the one side of the work table 3 so as to be movable in a cutting direction, and an invading part where the cutting head 7 can enter is provided on the work table 3, which is dividedly composed of a plurality of divided tables 23, 25 being adjacent to each other in the cutting direction, and each of divided tables 23, 25 is composed so as to be movable in the direction crossing a cutting direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting machine for cutting a large material such as a large ring material and a positioning method for the large material.

[0002]

2. Description of the Related Art A brief description will be given to a conventional cutting machine for cutting a large-sized material such as a large-sized ring material. This cutting machine has a work table for supporting a large-sized material, and the front of the work table. On the side, a cutting head having a band saw blade that can be driven to move in the vertical direction is provided so as to be movable in the front-back direction. Further, the work table is provided with an entrance portion into which the cutting head can enter.

With the above structure, after the large-sized material is loaded on the work table, the cutting head is moved in the cutting direction (rearward direction) while the band saw blade is being driven to move into the entrance portion. By doing so, a cutting process can be performed on a large-sized material.

[0004]

However, it is not easy to position a large-sized material on a work table at a predetermined position with respect to a cutting head in a conventional cutting machine as described above, and a portion to be cut (a band saw blade) in a large-sized material is not easily positioned. Therefore, there is a problem in that it is not possible to perform a precise cutting process on a large-sized material unless the portion (which is actually cut) is located on the movement locus of the band saw blade.

Therefore, an object of the present invention is to provide a cutting machine and a large material positioning method capable of easily and appropriately positioning a large material on a work table at a predetermined position with respect to a cutting head.

[0006]

In order to solve the conventional problems as described above, in the present invention, as a first means, a work table for supporting a large-sized material is provided, and one side of this work table is provided. A cutting head provided with a cutting blade is provided so as to be movable in the cutting direction, an intrusion portion into which the cutting head can enter is provided in the work table, and the work table is divided by a plurality of division tables adjacent to each other in the cutting direction. It is characterized in that each division table is movable in a direction intersecting (including orthogonal) with the cutting direction.

As a second means, a work table for supporting a large material is provided, and a cutting head having a cutting blade is provided on one side of the work table so as to be movable in the cutting direction, and the work table is moved in the cutting direction. It is configured by dividing by a plurality of dividing tables that are adjacent to each other in the direction intersecting with each other, and an intrusion portion into which the cutting head can enter is provided between the plurality of dividing tables, and each dividing table can be moved in the intersecting direction. It is characterized by being configured.

As a third means, after the large material is loaded onto the work table in the cutting machine, the large material is rotated so that the planned cutting portion of the large material and the moving locus of the cutting blade are parallel to each other. By moving the material in the direction intersecting the cutting direction and positioning the planned cutting part of the large material on the movement path of the cutting blade,
It is characterized in that a large-sized material is positioned with respect to a cutting head on a work table. Here, the part to be cut refers to a part that is actually cut by the cutting blade.

As a fourth means, in the large-sized material positioning method for the cutting machine of the first means, after the large-sized material is loaded into the work table, only an appropriate divided table among a plurality of divided tables is cut in the cutting direction. By moving in the direction intersecting with each other, the large-sized material is rotated so that the movement paths of the planned cutting part and the cutting blade in the large-sized material become parallel, and the multiple dividing tables are moved integrally in this intersecting direction. By doing so, the large-sized material is moved in the intersecting direction so that the planned cutting portion of the large-sized material is positioned on the movement locus of the cutting blade, and the large-sized material is positioned at a predetermined position with respect to the cutting processing head on the work table. It is characterized by

As a fifth means, in the large material positioning method for the cutting machine of the second means, after the large material is loaded into the work table, only an appropriate divided table among a plurality of divided tables is cut in the cutting direction. By moving it, the large material is rotated so that the planned cutting part of the large material and the movement trajectory of the cutting blade become parallel,
By cutting the large material on the work table by moving the multiple dividing tables integrally in the direction intersecting the cutting direction, the planned cutting part of the large material is positioned on the movement path of the cutting blade. It is characterized in that it is positioned at a predetermined position with respect to the processing head.

[0011]

With the above construction, a large-sized material can be carried into the work table. Next, in particular, in the fourth means, only an appropriate divided table among the plurality of divided tables is moved in a direction intersecting the cutting direction, and particularly in the fifth means, By moving only an appropriate division table of the plurality of division tables in the cutting direction, the large-sized material is rotated so that the planned cutting portion of the large-sized material and the movement path of the cutting blade are parallel to each other. In particular, in the fourth and fifth means, by moving a plurality of divided tables integrally in a direction intersecting the cutting direction, the large material is moved in the intersecting direction, so The planned cutting part should be positioned on the moving path of the cutting blade. As a result, a large-sized material can be positioned at a predetermined position on the work table with respect to the cutting head.

After positioning the large material in place,
By moving the cutting head in the cutting direction to enter the entrance while driving the cutting blade, it is possible to perform desired cutting on a large-sized material.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to this embodiment will be described below with reference to the drawings.

Referring to FIGS. 1, 2 and 3, the cutting machine 1 according to this embodiment includes a work table 3 for supporting a large-sized material W such as a large-sized ring material. A box provided with an endless band saw blade (an example of a cutting blade) 5 on the front side of the work table 3 (left side in FIG. 1, front side toward the paper surface in FIG. 2, lower side in FIG. 3). A cutting processing head 7 having a shape is provided, and the cutting processing head 7 is provided so as to be movable in a cutting direction (rearward direction) by driving a processing head drive motor 9 or a hydraulic cylinder (not shown). The cutting head 5 is provided with a pair of wheels 11 and 13 around which the band saw blade 5 is hung so as to be vertically spaced (up and down in FIGS. 1 and 2, and front and back in FIG. 3 toward the paper) and rotatable. Yes, one wheel 13 is linked to a wheel drive motor 15. A pair of saw blade guides 17 and 19 are vertically spaced apart at appropriate positions of the cutting head 5 so that the tooth tips of the portion of the band saw blade 9 that exerts a cutting action are substantially perpendicular to the large-sized material W. Is provided.

At the center of the front side of the work table 3, there is provided an intrusion part 21 into which the cutting head 7 can enter.
This work table 3 is adjacent to a first division table 23 and a second division table 23 which are adjacent to each other in a left-right direction (an example of intersection) orthogonal to the cutting direction (a front-back direction toward the paper in FIG. 1, a left-right direction in FIGS. It is configured by being divided by the division table 25. The first division table 23 can be moved in the left-right direction via rails 27 and wheels 29, and the first division table 23 can be moved in the left-right direction by the operation of the first transfer cylinder 31. Similarly, the second division table 25 can be moved in the left-right direction via the rails 33 and the wheels 35, and the second division table 25 can be moved by the second transfer cylinder 3
It is possible to move to the left and right by the operation of 7.

Here, it is desirable that the first divided table 23 and the second divided table 25 are constructed so that they can be disconnected by the action of a connection disconnecting device (not shown). As the connection disconnecting device, for example, a clamping device can be used. A suitable means such as a shot pin device or an electromagnetic magnet device can be used.

The operation of this embodiment will be described based on the above-mentioned configuration.

A large material W such as a large link material is loaded on the work table 3. At this time, it is desirable that the center of the large material W be located near the center of the work table 3.

Next, of the plurality of division tables 23 and 25, only the first division table 23 is moved in the direction (left direction) orthogonal to the cutting direction by the operation of the first transfer cylinder 31, so that a large-sized material is produced. The W is rotated so that the planned cutting portion of the large-sized material and the movement trajectory of the band saw blade 5 are parallel to each other (see FIGS. 4A and 4B).

Then, the first transfer cylinder 31 and the second transfer cylinder 37 are operated in synchronism with each other to move the first divided table 23 and the second divided table 25 integrally in the left direction, so that a large-sized material can be obtained. By moving W to the left, the planned cutting portion of the large-sized material W is positioned on the moving path of the band saw blade 5, and the center of the large-sized material W is set to the work table 3.
It can be made to substantially coincide with the center of the (see FIG. 4 (c)). As a result, the large material W can be positioned at a predetermined position on the work table 3 with respect to the cutting head 7. At this time, the first division table 2
In order to surely move the third and second divided tables 25 integrally to the left, it is desirable that the first divided table 23 and the second divided table 25 be integrated by the operation of the connection breaking device.

After the large-sized material W is positioned at a predetermined position, the driving motor 15 for wheels drives the band saw blade 5 to drive the machining head driving motor 9 under running conditions.
By driving the cutting processing head 7 in the cutting direction (rearward direction) and causing the cutting processing head 7 to enter the entry portion 21, the desired cutting processing can be performed on the large-sized material W.

According to this embodiment, the large-sized material W is easily and predeterminedly placed on the work table 3 with respect to the cutting head 7 so that the portion to be cut in the large-sized material W is located on the movement trajectory of the band saw blade 5. It is possible to perform appropriate positioning, and it is possible to perform precise cutting processing on the large-sized material W.

[0023]

As will be understood from the above description of the embodiments, according to the present invention, a large-sized material is placed on the work table so that the planned cutting portion of the large-sized material is located on the movement locus of the cutting blade. The cutting head can be easily and appropriately positioned at a predetermined position with respect to the cutting head, and the large-sized material W can be precisely cut.

[Brief description of drawings]

FIG. 1 is a side view of a cutting machine according to an embodiment.

FIG. 2 is a front view of the cutting machine according to the present embodiment.

FIG. 3 is a plan view of a cutting machine according to the present embodiment.

FIG. 4 is an explanatory view of the operation of the present embodiment.

[Explanation of symbols]

 1 Cutting Machine 3 Work Table 5 Band Saw Blade 7 Cutting Head 21 Entry Section 23 First Dividing Table 25 Second Dividing Table

Claims (3)

[Claims] 1. A work table for supporting a large-sized material is provided, and a cutting head having a cutting blade is provided on one side of the work table so as to be movable in the cutting direction, and the cutting head can enter the work table. An intrusion portion is provided, the work table is divided into a plurality of divided tables adjacent to each other in the cutting direction, and each divided table is movable in a direction intersecting the cutting direction. Cutting machine. 2. A work table for supporting a large-sized material is provided, and a cutting head having a cutting blade is provided on one side of the work table so as to be movable in the cutting direction, and the work table intersects the cutting direction. It is configured by being divided by a plurality of division tables that are adjacent in the direction, and an intrusion part through which the cutting processing head can enter is provided between the plurality of division tables,
A cutting machine, characterized in that each division table is configured to be movable in the intersecting direction. 3. A large-sized material is carried into a work table in a cutting machine, and then the large-sized material is rotated so that a planned cutting portion of the large-sized material and a moving locus of a cutting blade are parallel to each other, and the large-sized material is cut in a cutting direction. A large-sized material positioning method for positioning a large-sized material with respect to a cutting processing head on a work table by moving the large-sized material in a crossing direction so that a planned cutting portion of the large-sized material is positioned on a movement path of a cutting blade.