JP3313925B2 - Cutting machine with length measuring device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting machine with a length measuring device, and more particularly, to a cutting machine with a length measuring device capable of normally measuring even a work having a small thickness.

[0002]

2. Description of the Related Art Conventionally, in a sawing machine, for example, as a cutting machine, as shown in FIGS. By pushing the work W in a direction (a direction perpendicular to the plane of the paper in FIG. 5 and a left direction in FIGS. 6 and 7), the feed amount is often measured while the work W is being carried in. That is, many rollers 105
The work W is placed on the material feeding table 107 having
The work W is carried into the sawing machine by a predetermined length along the reference rollers 111 provided at predetermined intervals on the extension of the reference surface BL of the reference vise 109, and is subjected to cutting.

[0003]

However, in such a conventional technique, when the work W is an H-shaped steel or the like having a thin plate flange WF, the work W is used as a reference as shown in FIG. If the contact 103 presses the work W when it enters between the rollers 111, the contact 103 may come off from the rear end face of the flange WF of the work W and enter as shown in FIG. In such a case, there is a problem that the automatic measurement of the work W cannot be performed.

An object of the present invention is to pay attention to the above-mentioned conventional technology, and it is possible to measure the length of a workpiece having a small thickness without detaching the length measuring member during automatic length measurement. An object of the present invention is to provide a cutting machine with a device.

[0005]

In order to achieve the above object, a cutting machine with a length measuring device according to the present invention moves along a reference vise surface of a reference vise which is a reference position of a workpiece at the time of cutting. The contact of the measuring wheel presses the rear end face of the work to measure the cut length of the work.
A length measuring device for measuring the cutting length of the workpiece by feeding the workpiece, wherein a projecting device horizontally protrudes across the reference vise surface on a contact of the length measuring vehicle pushing a rear end face of the workpiece. setting the arm is provided with a Okuzai direction of the grooves to prevent interference with the arm at a height position corresponding to the arm of the reference device
It is characterized in that the digits.

[0006]

In the cutting machine with the length measuring device according to the present invention, the rear end face of the work is measured by a length measuring wheel so that the work is fed along the reference vise surface of the reference vise and cut by fixing the work with the reference vise. The length of the cutting length is measured based on the amount of movement of the length measuring wheel by pressing the contact. At this time, even if the rear end of the work is displaced beyond the reference vise surface, the arm of the contact provided beyond the reference vise surface does not separate from the rear end surface of the work and the work returns to the normal position. The contact is located at a predetermined position on the rear end surface of the work. Further, since a groove is provided at a height position corresponding to the contact in the reference vise, the contact does not interfere with the reference vise even when the contact approaches the cutting position.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to the drawings.

FIG. 2 shows the entirety of, for example, a horizontal band sawing machine 1 as a cutting machine. The band sawing machine 1 has a cutting portion 3 for cutting the work W, a support portion 5 for placing and supporting the work W, and a side-by-side support member 5 for feeding the work W by a predetermined length. And a vice mechanism 9 for holding and fixing the workpiece W fed at the time of cutting.

The cutting section 3 comprises a band saw blade BS and a band saw blade B
It has a saw blade housing 11 that supports the S so that it can run freely. A pair of wheels for rotatably driving the band saw blade BS are provided inside the saw blade housing 11, and are vertically rotated by a lifting device (not shown).

The support section 5 has a material feeding table 15 provided with a plurality of support rollers 13 provided in a horizontal direction so as to movably mount and support the material. The material feeding table 15 is provided with a reference roller 17 (see FIGS. 3 and 4) for feeding the workpiece W to a predetermined position, with its rotation axis set in a vertical direction.

In the feeding section 7, a guide rail 19 for feeding the workpiece W is provided along the feeding table 15 in the feeding direction (X-axis direction in FIG. 2). A length measuring wheel 21 for measuring the material feeding length of the work W is provided movably. The length measuring wheel 21 is provided with a support member 23, and a contact 25 is provided at the tip of the support member 23 as shown in FIG.

The vice mechanism 9 includes a main body vice mechanism 27 for fixing the workpiece W at a position before the band saw blade BS (upper left in FIG. 2) at the time of cutting, and a front position (lower right in FIG. 2) of the band saw blade BS. Side), and a front vice mechanism 29 for fixing the work W to be cut and unloading the cut work W. Also,
An operation panel 31 is provided near the band saw machine 1 main body.

The main body vice mechanism 27 has a main body fixed vice jaw 33 (see FIG. 1) as a reference vice jaw, and a main body movable vice jaw 35 which can freely move toward and away from the main body fixed vice jaw 33.

The front vice mechanism 29 has a front fixed vice jaw 37 and a movable front vice jaw 39 which can be moved toward and away from the front fixed vice jaw 37, and the work W Reciprocating in the material feeding direction. In order to cut the work W at an angle, the cutting section 3 and the vice mechanism section 9 can be turned integrally.

With the above configuration, the contact 25 of the measuring wheel 21 pushes the rearmost end face of the work W placed on the support roller 13 and abutting on the reference roller 17 by pressing. The work W is fed to the band saw blade BS while measuring the length of the work W to be fed. Then, the work W is fixed by the main vise mechanism 27 and the front vise mechanism 29 approaching the band saw blade BS, and the work W is cut by the traveling band saw blade BS. Cut work W
Is transported in the material feeding direction while being sandwiched by the front vice mechanism 29 and is carried out.

FIG. 1 shows the details of the contact 25 provided on the length measuring wheel 21 and the state in which the contact 25 pushes the rearmost end face of the work W.

That is, the contact 25 is provided with an arm 43 projecting leftward in FIG. 1 from a rectangular pressing portion 41 for pressing the rearmost end face of the work W. Further, a groove 45 is formed at a position corresponding to the position of the arm 43 in the main body fixing vice jaw 33 serving as a reference side in a material feeding direction (a direction perpendicular to the plane of the paper in FIG. 1) in order to prevent interference with the arm 43. I have.

With the above configuration, when the contact 25 pushes the H-section steel having the thin flange WF, the rear end of the work W is moved to the reference roller 17 as shown in FIG. When the work W returns to the normal position, the contact 25 returns to the normal position as shown in FIG. 4 because the arm 43 does not separate from the flange WF of the work W even if it falls down.

Further, since the groove 45 is formed in the body fixing vice jaw 33 at a position corresponding to the arm 43 of the contact 25, the arm 43 of the contact 25 even when the length measuring wheel 21 approaches the cutting position. Does not collide with the body fixing vice jaw 33.

Therefore, according to the length measuring device in such a cutting machine, accurate length measurement can be performed even for a thin steel plate having a small thickness, and cutting can be performed to a desired length.

The present invention is not limited to the above-described embodiment, but can be embodied in other modes by making appropriate changes. For example, in the above-described embodiment, the description has been made using the horizontal band saw machine 1 as the cutting machine. However, the present invention is not limited to this, and the present invention can be applied to a vertical band saw machine, a circular saw machine and the like.

In the above description, the cutting of the H-shaped steel has been described. However, similar effects can be obtained with other shaped steels and pipes. Further, the arm 43 of the length measuring wheel 21 may be moved up and down so as to press a web portion of, for example, an H-shaped steel, or the contact 25 may be replaced in accordance with the work W. is there.

[0023]

The cutting machine with a length measuring device according to the present invention is as described above. In order to cut a workpiece by feeding a workpiece along a reference vise surface of a reference vise, the workpiece is fixed by the reference vise. Then, the contact of the length measuring wheel pushes the rear end face of the work, and the cutting length is measured from the moving amount of the length measuring wheel. At this time, even if the workpiece is displaced beyond the reference vise plane,
The arm of the contact provided beyond the reference vise surface does not separate from the rear end surface of the work, and the arm guides the work when the work returns to the normal position. For this reason, since the contact does not come off from the rear end face of the work, normal length measurement can be performed. Further, since a groove is provided at a position corresponding to the contact in the reference vise, interference with the reference vise can be prevented even when the contact approaches the cutting position.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing one embodiment of a contact which is a part of a length measuring device in a cutting machine according to the present invention.

FIG. 2 is a perspective view showing an entire band saw machine as an example to which the length measuring device according to the present invention is applied.

FIG. 3 is an explanatory diagram showing a relationship between a workpiece and a contact when the workpiece is abnormally displaced.

FIG. 4 is an explanatory diagram illustrating a positional relationship between a workpiece and a contact that has returned to a normal position after displacement.

FIG. 5 is an explanatory diagram showing a relationship between a contact and a work of a conventional length measuring device.

FIG. 6 is an explanatory diagram showing a relationship with a conventional contact in a state where a work is abnormally displaced.

FIG. 7 is an explanatory diagram showing a positional relationship between a work that has returned to a normal position after displacement and a conventional contact.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Band sawing machine (cutting machine) 21 Length measuring wheel 25 Contact 33 Main body fixed vice jaw (reference vise) 43 Arm 45 groove W Work BL Reference vise surface

Claims (1)

(57) [Claims] A contact of a length-measuring wheel moving along a reference vise surface of a reference vise serving as a reference position of a workpiece at the time of cutting.
Cut length of the workpiece by the probe pushes the rear end face of the workpiece
A length-measuring device-equipped cutting machine for measuring a cutting length of a work by feeding a work while measuring a length of the work. the arm which projects horizontally across the provided proof interference with the arm at a height position corresponding to the arm of the reference device
A cutting machine with a length measuring device, characterized in that a groove in the material feeding direction for stopping is provided .