JPH06344304A - Miter borer - Google Patents

Abstract

PURPOSE:To facilitate cutting and matching of frame material by providing a wood placing table above a fixed bed, and supporting a mitering device by the bed via a supporting frame in a way in which the device can move forward or backward in the direction of the depth of the table, and supporting a boring device by the bed via the supporting frame. CONSTITUTION:A miter borer consists of a fixed bed 1, a table 2 which is provided above the bed 1 upon which a piece of wood 4 is placed, and a mitering device 5 which is supported by the bed 1 via a supporting frame 3 in a way in which it can move forward or backward in the direction of the depth of the table 2 and cuts the piece of wood 4 in an angle as specified. In addition, a boring device 6 is formed to bore round holes that meet at right angles with cut surface of the piece of wood 4 which is supported by the bed 1 via the supporting frame 3 and is to be cut. The piece of wood 4 which is placed on the table 2 is cut at a specified position and angle by the mitering device 5 which can move forward or backward, and bored by the boring device 6 in the direction which crosses the cut surface of the piece of wood 4. Therefore, the mutual ends frame bodies are butted each other and a pin is inserted, and positioning and connecting of the mutual ends can be done accurately and in a short time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cut-off borer capable of cutting an end portion of a member such as a wooden window frame or a door frame at a predetermined angle and punching a hole intersecting the cut end portion. It is about.

[0002]

2. Description of the Related Art A wooden window frame attached to a building such as a house is composed of an upper frame, left and right vertical frames, and a lower frame, and a door frame is composed of an upper frame and left and right vertical frames. It is equipped with a lower frame if necessary. Frames such as window frames and door frames are directly attached to the frame by cutting the members according to the size of the frame of the building at a construction site and performing wood edge treatment if necessary.
The windows and doors are processed according to the dimensions of the window frame and door frame fixed to the frame, and assembled in the frame body.

[0003]

As described above, it is necessary to have a high degree of skill to cut the frame body according to the frame and to assemble it to the frame at the construction site. In particular, the joint surface of the members is, for example, 45 °. When tilted, a higher degree of skill is required to accurately align the joining surfaces. For this reason, not only is the labor cost of the worker high, it is difficult to train skilled workers, and it is becoming even more difficult to secure skilled workers today as the level of carpenter's technology is decreasing.

When the skill level of the carpenter is lowered in this way, the dimensional accuracy of the frame body built by the carpenter having a low skill level is lowered, so that the window and the door to be housed in the frame body are manufactured according to the frame body. However, there are problems such as forced production of individual windows and doors, a reduction in airtightness due to a gap between the frame and the windows and doors, and uncleanness.

Further, if the carpenter manufactures each piece in this way, not only it takes a long time to complete the building, but also the labor cost increases and the construction cost of the building becomes expensive, which is a fatal problem. There is.

The present invention has been completed in view of the above technical problems, and a member having a joint surface inclined with high precision can be obtained easily. Therefore, the members can be joined with each other very easily. By doing so, it is an object of the present invention to provide a cut-out borer that enables a normal carpenter to manufacture window frames and door frames with extremely simple and beautiful processing.

[0007]

DISCLOSURE OF THE INVENTION The cut-off baller of the present invention is
In order to achieve the above object, a bed fixed to an installation surface, a table placed above the bed and on which wood formed in a required shape is placed, and a table of a table via a support frame. The bed is supported by the bed so as to be movable back and forth in the depth direction, and is supported by the bed via a cutting and cutting device that cuts the wood placed on the table at a predetermined angle, and a support frame common to or different from the support frame. And a boring device for boring a hole intersecting the cut surface of the wood to be cut by the distillation cutting device.

Hereinafter, in order to clarify the present invention, each part thereof will be described in detail. The installation surface in the present invention is required to have rigidity enough to support the weight of the distillation cut-off borer of the present invention without being deformed. For example, concrete, floor surface such as reinforced concrete, or metal frame embedded in the ground. It is composed of the top surface.

Further, the bed according to the present invention, while being installed on the installation surface, supports vibrations such as a cutting device and a boring device, which will be described later, when the wood is processed, or vibration generated by the cutting device or the boring device. Therefore, it is necessary to provide rigidity that does not cause deformation.

The bed having such rigidity can be integrally formed of, for example, cast iron or can be formed by welding steel materials.

The upper surface of the table of the present invention is not particularly limited, but it is preferable that the upper surface is formed to be a flat surface in order to stably support the wood.

In the present invention, the cross-sectional shape of the wood to be processed is not particularly limited, and it can be formed into any shape such as a rectangle or a trapezoid. Even if a part of the side surface of the wood to be processed is formed into a curved surface, if the side surface formed on another plane can be placed on the table with the side surface down,
The wood can be fixed to the table in a stable and stable manner. Also, when a part of the wood to be processed is formed into a curved surface and this curved surface is placed on the table,
By using the jig, it is possible to stably fix and process the wood on the table, so that there is no hindrance.

Further, the height of the table may be fixed, or the table may be raised and lowered according to the height of the wood.

When the table is provided to be movable up and down, it is preferable to provide a table height adjusting device for adjusting the height of the table. The table height adjusting device may be configured to be operated by manual operation, and includes a table height adjusting mechanism for adjusting the table height and a driving device for driving the table height adjusting mechanism, and controlling the driving device. The table height can be controlled numerically.

The table can be supported by an installation surface, a bed, a support frame that supports the demolition device, or a support frame that supports the boring device. However, in order to improve the dimensional accuracy of the cutting position, it is preferable to support the table on a support frame that supports the distillation cutting device. To improve the accuracy of the drilling position and angle, place the table on the support frame that supports the boring device. It is preferable to support it.

[0016] The above-mentioned cutting-off device must be provided so that the timber fixed to the table can be cut at a predetermined angle by advancing in the depth direction of the table. Is arranged so as to rotate or advance and retreat on the side intersecting with the upper surface of the table when viewed from the front.

Further, the cut-off device may be supported on the bed via a support frame so as to be movable back and forth in the depth direction of the table, and the cut-off device is configured to be manually moved in the depth direction of the table. Alternatively, a drive device for moving the cut-off device in the depth direction of the table may be provided.

Here, the supporting of the cut-off device on the bed so as to be movable back and forth in the depth direction of the table via the support frame means that the support frame supporting the cut-off device is supported on the bed so as to be movable forward and backward in the depth direction of the table. And when a part of the support frame supports the other part of the support frame so as to be movable back and forth in the depth direction of the table, and when the cut-off device is supported by the support frame so as to be movable forward and backward in the depth direction of the table. And a case where any two or more of these are combined.

In the present invention, it is not essential for the present invention to allow the demolition device to move in the width direction of the table, but it is possible to prevent interference with the table or the boring device, or to dispose the demolition device. It is preferable that the bed is supported via a support frame so as to be able to move back and forth in the width direction of the table in order to prevent damage to the processed wood edge caused by hitting the saw away from the processed wood edge.

Here, "supporting the bed in the width direction of the table through the support frame" means that the support frame that supports the cut-off device is supported by the bed in the width direction of the table. A case where a part of the support frame supports the other part of the support frame so as to be movable back and forth in the table width direction, and a case where the cut-off device is supported by the support frame so as to be movable forward and backward in the table width direction. It is meant to include a case where two or more cases are combined.

In this case, the cutting position for adjusting the position of the cutting device in the width direction of the table is adjusted so that the position of the cutting device in the table width direction can be adjusted accurately, easily and in a short time. It is preferable to provide a regulating device.

The cutting position adjusting device may be arranged so that the position of the table of the cutting device in the width direction can be adjusted by a manual operation, and the cutting position for adjusting the position of the table of the cutting device in the width direction can be adjusted. An adjusting mechanism and a drive device for driving the adjusting mechanism may be provided, and the position of the cut-off device in the table width direction may be numerically controlled by controlling the drive device.

In the present invention, it is not essential for the present invention to be able to raise and lower the cut-off device, but it is possible to prevent interference with a table or a boring device, or to process the cut-off device after processing the wood ends. It is preferable that the cut-off device is supported by a bed via a support frame so as to be able to move up and down in order to prevent damage to the processed wood edge due to hitting with a saw.

Here, "supporting the bed via the support frame so as to be able to move up and down" means that the support frame that supports the cut-off device is supported so as to be able to move up and down on the bed, and that a part of the support frame is used in addition to the support frame. It is meant to include a case where the part is supported so as to be able to move up and down, a case where the cut-off device is supported so as to be able to move up and down, and a case where any two or more of these are combined.

When the cutting device is supported by the bed so as to be able to move up and down via the support frame, the height of the cutting device can be adjusted accurately, easily and in a short time. It is preferable to provide a cutting height adjusting device for adjusting the height of the cutting height.

The cutting height adjusting device may be constructed so that the height of the cutting device can be adjusted by a manual operation.
The cutting height adjusting mechanism that adjusts the height of the cutting-off device and a driving device that drives the cutting-off adjusting device may be provided, and the height of the cutting-off device may be numerically controlled by controlling the driving device.

In the present invention, it is not essential for the present invention to rotate the dissection device about the front-rear axis, but it is possible to cut the members at any angle necessary for joining members having different thicknesses. In order to achieve this, it is preferable to support the demolition device so as to be rotatable around the front-rear axis.

In this case, in order to be able to adjust the rotation angle around the longitudinal axis of the cutting device accurately, easily and in a short time, it is rotatably supported around the longitudinal axis of the cutting device. Preferably.

The cutting angle adjusting device may be constructed so that the rotation angle around the longitudinal axis of the cutting device can be adjusted by manual operation, and the rotation angle around the longitudinal axis of the cutting device can be adjusted. The cutting angle adjusting mechanism and a drive device for driving the cutting angle adjusting mechanism may be provided, and the drive device may be controlled to numerically control the rotation angle around the longitudinal axis of the cut-off device.

In the present invention, as the cut-off device, any type of cutting device used for cutting wood may be used, but in order to downsize the device, a circular saw which can be made relatively small. It is preferable to use a cutting device or a bow cutting device.

That is, as the cut-off device, a circular saw cutting device provided with a motor supported by a support frame and a circular saw directly connected to the motor, or an arch body held by the support frame so as to be able to move back and forth. It is recommended to use an arcuate cutting device provided with a band saw mounted between both ends of the bow body and a drive device for driving the bow body and the band saw.

In the present invention, the boring device is provided with, for example, 9 dia.
It has to be configured so as to be able to form a round hole of a certain angle, such as 0 degrees, so that the boring device is oriented such that its drill axis is at a certain angle with respect to the cutting plane of the wood, and It is supported by the bed via a support frame so that it can move back and forth in the axial direction.

Here, that the boring device is supported by the bed via a support frame so that the boring device can advance and retreat in the direction of a predetermined angle
When the support frame supporting the boring device is supported by the bed so as to be movable back and forth in a predetermined angle direction, when a part of the support frame is supported so as to be movable back and forth in a predetermined angle direction, The case includes a case where the boring device is supported by the support frame so as to be able to move forward and backward in a predetermined angle direction, and a case where two or more of these cases are combined.

In the present invention, the boring device may be supported by a supporting frame other than the supporting frame for supporting the distilling device, but in order to improve the dimensional accuracy of the relative position between the cutting position and the drilling position, It is preferable to support it on a common support frame with the support frame that supports the distillation device. However, in the present invention,
Supporting the retaining device and the boring device on a common support frame is intended to include not only the case where the entire support frame is common, but also the case where a part of the support frame is common.

In the present invention, it is not essential to provide the boring device so that the boring device can move forward and backward in the depth direction of the table, but one boring device can form a plurality of round holes having different positions in the depth direction of the table. For this reason, it is preferable that the boring device is supported on the bed so as to be movable back and forth in the depth direction of the table via a support frame.

Here, "supporting the bed so as to be movable back and forth in the depth direction of the table through the support frame" means that the support frame is supported by the bed so as to be movable back and forth in the depth direction of the table, and is supported by a part of the support frame. When the other part of the frame is supported so that it can move back and forth in the depth direction of the table, when the boring device is supported by the support frame so that it can move forward and backward in the depth direction of the table, and when two or more of these are combined. It is meant to include and.

When the boring device is provided so as to be movable back and forth in the depth direction of the table, the depth of the table of the boring device is adjusted so that the position of the boring device in the table depth direction can be adjusted accurately, easily and in a short time. It is preferable to include a front and rear position adjusting device for adjusting the position in the direction.

This front / rear boring position adjusting device may adjust the position of the table of the boring device in the depth direction by manual operation, or the front / rear position adjusting device of boring device for adjusting the position of the boring device in the depth direction. A mechanism and a drive device for driving the mechanism may be provided, and the drive device may be controlled to numerically control the position of the table of the boring device in the depth direction.

In the present invention, it is not essential to provide the boring device so as to be movable back and forth in the table width direction, but it is possible to arbitrarily correspond to the cutting position, the size of the member, the position of the hole in the table width direction, and the like. Therefore, it is preferable that the boring device is supported by the bed via a support frame so as to be movable back and forth in the width direction of the table.

Here, the boring device being supported by the bed via the support frame so as to be movable back and forth in the width direction of the table means that the support frame is supported by the bed so as to be movable back and forth in the width direction of the table. , A case where a part of the support frame is supported by another part of the support frame so as to be movable back and forth in the width direction of the table,
This means that the boring device is supported by the support frame so as to be movable back and forth in the width direction of the table, and that two or more of these cases are combined.

When the boring device is provided so as to be movable back and forth in the width direction of the table, in order to adjust the position of the boring device in the table width direction accurately, easily and in a short time, It is preferable to provide a perforation lateral position adjusting device for adjusting the position in the table width direction.

The above-mentioned horizontal hole position adjusting device may adjust the position of the table of the boring device in the width direction by a manual operation, or the lateral hole position adjusting device adjusts the position of the boring device in the table width direction. A mechanism and a driving device for driving the mechanism may be provided, and the position of the table of the boring device in the width direction may be numerically controlled by controlling the driving device.

In the present invention, it is not essential for the present invention to provide the boring device so that it can be raised and lowered, but it is possible to arbitrarily correspond to the cutting position, the size of the member, the position of the hole in the table width direction, and the like. Therefore, it is preferable that the boring device is supported by the bed so as to be able to move up and down through the support frame.

Here, the boring device being supported by the bed so as to be able to move up and down through the support frame means that the support frame is supported by the bed so as to be able to move up and down, and a part of the support frame is the other part of the support frame. It is meant to include a case where the boring device is supported so as to be able to move up and down, a case where the boring device is supported so as to be able to move up and down, and a case where two or more of these cases are combined.

To install the boring device so that it can be raised and lowered,
In order to adjust the height of the boring device accurately, easily and in a short time, it is preferable to provide a boring height adjusting device for adjusting the height of the boring device.

The boring height adjusting device may be adapted to adjust the height of the boring device by manual operation.
A boring height adjusting mechanism for adjusting the height of the boring device and a driving device for driving the boring device may be provided, and the driving device may be controlled to numerically control the height of the boring device.

It is not essential for the present invention to provide the boring device so as to be rotatable about the front-rear axis, but in order to allow the boring angle of the hole to be arbitrarily changed, the boring device is provided with a support frame. It is preferable that the bed is supported so as to be rotatable around the longitudinal axis.

Here, the boring device being rotatably supported by the bed via the support frame about the front-rear axis is a case in which the support frame is supported by the bed rotatably about the front-rear axis and the boring. When the device is supported on the bed so that it can be rotated around the front-rear axis around the support frame, and when the support frame is supported on the bed so that it can be rotated around the front-rear axis, the boring device can be rotated around the front-rear axis around the support frame. It is meant to include the case where the bed is supported by.

When the boring device is rotatably provided around the front-rear axis, the boring device can be accurately and easily adjusted in a short time in order to adjust the rotation angle of the boring device around the front-rear axis. It is preferable to provide a perforation angle adjusting device for adjusting the rotation angle around the longitudinal axis of the device.

This drilling angle adjusting device may be capable of manually adjusting the rotation angle of the boring device around the front-rear axis, or the boring angle adjusting device for adjusting the rotation angle of the boring device around the front-rear axis. A mechanism and a drive device for driving the mechanism may be provided, and the drive device may be controlled to numerically control the rotation angle of the boring device about the longitudinal axis.

In the present invention, the number of the distilling devices and the number of boring devices may each be one or more, but when a plurality of distilling devices and the same number of boring devices are provided, for example, one Both ends of the member can be cut and punched simultaneously in parallel, or both ends of a plurality of members can be cut and punched simultaneously in parallel, which is advantageous in improving workability.

[0052]

In the cut-off bolster of the present invention, the wood to be processed is fixed on the table, and the cut-off device is moved in the depth direction of the table, whereby the wood is cut off accurately at an arbitrarily set angle. It In addition, the boring device accurately forms a hole that intersects the cut surface of the wood at an arbitrarily set position at an arbitrarily set angle.

Then, the members thus accurately cut are brought into contact with each other, and bolts or the like are inserted into the holes formed in the respective members, so that even ordinary unskilled carpenters can join the members to be joined to each other. It has an effect that it can be aligned and connected very easily and accurately.

[0054]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A cut-off boring machine according to an embodiment of the present invention will be specifically described below with reference to the drawings, but the present invention is not limited to this. 1 to 7 show a cut-off borer according to an embodiment of the present invention, FIG. 1 is a front view thereof, FIG. 2 is a plan view thereof, FIG. 3 is a side view thereof, and FIG. It is a front view of the main part, FIG. 5 is a plan view of the main part, FIG. 6 is a front view of the main part of a cut-off boring machine according to another embodiment, and FIG. It is a top view of the principal part of the distillation cutoff borer.

As shown in FIGS. 1 to 3, a cut-off boring machine according to an embodiment of the present invention has a bed 1 fixed to an installation surface and a bed 1 arranged above the bed 1 and having a required shape. The table 2 on which the formed timber 4 is placed and the timber 4 which is supported by the bed 1 through the support frame 3 so as to be movable back and forth in the depth direction of the table 2 and placed on the table 2 are planned. Boring for supporting the bed 1 through the cutting device 5 that cuts at an angle and the support frame 3 that is common to the support frame 3 and forming a round hole orthogonal to the cutting surface of the wood 4 that the cutting device 5 cuts. The apparatus 6 (not shown in FIGS. 2 and 5) is provided.

It is necessary that the above-mentioned installation surface be rigid enough to support the weight of the cut-off boring without being deformed. In this case, the floor surface of concrete, reinforced concrete or the like, or a metal frame buried in the ground. It is composed of the upper surface of.

The bed 1 is mounted on the installation surface, supports the cutting device 5 and the boring device 6 during processing, and is not deformed by the vibrations generated by the cutting device 5 and the boring device 6. It is necessary to provide such rigidity, and it can be formed integrally by, for example, cast steel or by welding steel materials.

In this embodiment, the bed 1 is integrally formed of cast steel, and is horizontally long so as to support the two support frames 3 side by side.

Although not particularly limited, the upper surface of the table 2 is formed into a flat surface for stably supporting the wood 4 and also serving as a reference surface in the height direction of processing.

The cross-sectional shape of the processed wood 4 is not particularly limited, and can be formed into any cross-sectional shape such as a rectangle or a trapezoid. Also, a piece of wood 4 with a part of its side surface formed into a curved surface
However, if the side surface formed on the other plane can be placed on the table 2 with the side surface facing downward, the wood 4 can be stably fixed to the table 2, and therefore there is no obstruction. Further, even when the wood 4 having a part of its side surface formed into a curved surface is placed on the table 2 with the curved surface facing downward, the wood 4 can be stably fixed and processed on the table 2 by using a jig. Is possible, so it does not interfere.

Although the height of the table 2 may be adjustable, in this embodiment the height of the table 2 is constant because the upper surface of the table 2 is also used as a reference plane in the height direction of processing. It is fixed.

When the table 2 is provided so as to be movable up and down, it is preferable to provide a table height adjusting device for adjusting the height thereof. This table height adjusting device may be configured so that the table height can be adjusted manually.
It is also possible to provide a table height adjusting mechanism for adjusting the table height and a driving device for driving the table height, and to control the driving device so that the table height can be numerically controlled.

The table 2 may be supported on any of the installation surface, the bed 1 and the support frame 3, but in this embodiment, the dimensional accuracy of the cutting position is improved and the accuracy of the drilling position and the drilling angle is improved. The table 2 is supported by the support frame 3 that supports the demolition device 5 and the boring device 6 in order to improve the temperature.

The cut-off device 5 must be provided so as to cut the timber 4 fixed to the table 2 at a predetermined angle by advancing in the depth direction (front-back direction) of the table 2. For this purpose, The saw of the cutting-off device 5 rotates on the right side or the left side of the table 2 on a surface that intersects the upper surface of the table 2 at a predetermined angle such as 45 degrees or −45 degrees when viewed from the front, or , Arranged to move forward and backward.

It is sufficient that the dissection device 5 is supported by the bed 1 via the support frame 3 so as to be movable back and forth in the depth direction of the table 2, and the support frame on which the dissection device 5 is supported. 3 is supported on the bed 1 so as to be movable back and forth in the depth direction of the table 2, and a part of the support frame 3 is supported by the table 2.
Of the supporting frame 3 so that it can be moved back and forth in the depth direction of the table, and the supporting frame 3 can be supported so that it can move forward and backward in the depth direction of the table 2; It is considered that two or more cases are combined.

In this embodiment, as shown in FIGS. 3 to 5, the support frame 3 is supported by the bed 1 so as to be movable in the left-right direction, and the base 7 can be moved back and forth in the width direction of the table. A slide guide 8 supported by the slide guide 8, a column 9 supported by the slide guide 8 so as to be able to advance and retreat in the front-back direction, that is, the depth direction of the table; The elevating frame 10 is provided with a head block 11 which is supported so as to be movable back and forth in the left-right direction.

That is, in this embodiment, the support frame 3 is supported with respect to the base 7 and the slide guide 8 which are a part of the support frame 3.
The column 9, the elevating frame 10, and the head block 11, which are the other parts of the table, are supported so as to be able to advance and retreat in the depth direction of the table, and the head block 11 is configured to support the cut-off device 5.

The cut-off device 5 may be configured to be moved back and forth in the depth direction of the table 2 by manual operation.
Here, as shown in FIG. 2, FIG. 3 and FIG. 5, in order to stabilize the cutting speed and enhance the safety of the work, a drive device 12 for moving the cut-off device 5 in the depth direction of the table 2 is provided. There is.

The drive device 12 may be configured so as to be capable of reciprocally driving the decompression device 5 in the front-rear direction, but here, in order to simplify the configuration, for example, compressed air, pressure oil, The drive device 12 is configured by a cylinder that uses electricity or the like as a drive source.

Although it is not essential to the present invention that the cutting device 5 can be moved in the width direction of the table 2, that is, in the left-right direction, in this embodiment, the table 2 and the boring device 6 and the cutting device are cut. Through the support frame 3, in order to prevent interference with the device 5 or prevent the cut-off device 5 from moving away from the processed wood edge and preventing damage to the processed wood edge due to hitting with a saw. The bed 1 is supported so that it can move back and forth in the width direction of the table 2.

Here, as a mode in which the cut-off device 5 is supported by the bed 1 via the support frame 3 so as to be able to move forward and backward in the width direction of the table 2, the support frame 3 supporting the cut-off device 5 is the bed 1. In the case where the table is supported so that it can move forward and backward in the width direction of the table, and when a part of the support frame 3 supports the other part of the support frame 3 so that it can move forward and backward in the width direction of the table. This includes a case where the support frame 3 is supported so as to be movable back and forth in the table width direction, and a case where any two or more of these cases are combined.

In this embodiment, in order to move the cut-off device 5 in the table width direction in correspondence with the cutting position of the wood 4,
The entire support frame 3 including the base 7 is supported by the bed 1 so as to be able to move forward and backward in the width direction of the table, and the position of the cut-off device 5 in the width direction of the table can be finely adjusted according to the cutting position of the wood 4. In order to do so, the base 7 which is a part of the support frame 3 supports the slide guide 8, the column 9, the elevating frame 10 and the head block 11 which are the other parts of the support frame 3 so as to be movable back and forth in the table width direction, Furthermore, the support frame 3
The structure is such that the base 7, the slide guide 8, the column 9, and the elevating frame 10 that are a part of the table support the head block 11 that is the other part of the support frame 3 so as to be capable of elevating in the width direction of the table.

In this embodiment, the position of the base 7 is not adjusted very often, so no adjusting device for adjusting the table width direction of the base 7 is provided, but the cut-off device 5 is operated relatively frequently. Cutting position adjustment for adjusting the position in the width direction of the table of the cut-off device 5 across the base 7 and the slide guide 8 so that the position in the table width direction can be adjusted accurately, easily and in a short time. A device 13 is provided.

The cutting position adjusting device 13 has a screw shaft 14 which is inserted into the base 7 so as to be screwed back and forth and meshes with a rack formed on the slide guide 8, and the screw shaft 1.
4 is provided with a handle 15 fixed to the outer end portion thereof, and the position of the cut-off device 5 in the table width direction can be adjusted by manual operation.

A motor may be provided instead of or in addition to the handle 15 to control the rotation angle of the motor to numerically control the position of the cut-off device 5 in the table width direction.

Further, in this embodiment, a cylinder 16 driven by compressed air, pressure oil, electricity or the like is provided between the elevating frame 10 and the head block 11 to cut the saw 20 of the cut-off device 5 from the wood. The saw of the cutting device 5 is prevented from coming into contact with the machined wood end by allowing it to be pulled away from the end.

It is not essential to the present invention that the above-mentioned distilling device 5 can be moved up and down, but in this embodiment,
To prevent the interference between the table 2 and the boring device 6 and the cutting device 5, or to keep the cutting device 5 away from the processed wood edge,
In order to prevent damage to the processed wood edge due to hitting by the saw, the cut-off device 5 is supported by the bed 1 via the support frame 3 so as to be able to move up and down.

Here, to support the cut-off device 5 so that it can be moved up and down on the bed 1 through the support frame 3 means that the support frame 3 that supports the cut-off device 5 is supported on the bed 1 so that it can be moved up and down. , A case where a part of the support frame 3 supports the other part of the support frame 3 so as to be able to move up and down, a case where the cut-off device 5 is supported so as to be able to move up and down, and any two or more of these It means that the case of is combined with the case of.

In this embodiment, the base 7, which is a part of the support frame 3, the slide guide 8 and the column 9, the lift frame 10 and the head block 11 which are the other parts of the support frame 3 are supported so as to be lifted and lowered.

Further, in this embodiment, in order that the height of the cutting device 5 can be adjusted accurately, easily and in a short time, the cutting height adjusting device 17 for adjusting the height of the cutting device 17 is used.
Is equipped with.

The cutting height adjusting device 17 is provided in the column 9 so as to be rotatable about the vertical axis and engages with a rack formed on the elevating frame 10, and the upper end portion of the column 9 has an upper end portion.
Of the vertical axis that protrudes upward from the
And a handle (not shown) that is attached to and detached from the upper end of the cut-off device 5. The height of the cut-off device 5 can be adjusted by manually operating this handle.

Instead of or in addition to this handle, a motor for driving the screw shaft may be provided, and the height of the cut-off device 5 may be numerically controlled by controlling this motor.

Although it is not essential to the present invention to rotate the above-mentioned cut-off device 5 around the front-rear axis, in this embodiment, members having different thicknesses are joined at an arbitrary angle necessary for joining them. In order to enable cutting, the detention device 5 is supported by the head block 11 of the support frame 3 so as to be rotatable around the front-rear axis.

The adjustment of the rotation angle of the cut-off device 5 about the front-rear axis is not performed very often. Therefore, in order to reduce the cost, the cutting angle for adjusting the rotation angle of the cut-off device 5 about the front-rear axis. It is not necessary to provide an adjusting device, but in order to adjust the rotation angle of the cutting device 5 about the front-rear axis center accurately, easily and in a short time, the front-rear shaft center of the cutting device 5 is adjusted. It does not hinder to provide a cutting angle adjusting device for adjusting the rotation angle of the.

When the cutting angle adjusting device is provided, the cutting angle adjusting device is provided over the elevating frame 10 and the head block 11, and the rotation angle can be adjusted around the front-rear axis of the cut-off device by manual operation. Alternatively, a cutting angle adjusting mechanism for adjusting the rotation angle of the cutting-off device 5 around the front-rear axis and a driving device for driving the cutting-angle adjusting mechanism are provided, and the driving device is controlled to control the cutting-off device. The rotation angle around the front-rear axis may be controlled.

As the cut-off device 5, any type of cutting device used for cutting the wood 4 may be used, but in order to downsize the device, a circular saw cutting which can be made relatively small. It is preferable to use a device or an arcuate cutting device, and it is more preferable to use a circular saw cutting device to further simplify the structure.

Therefore, in this embodiment, the motor 19 supported by the support frame 3 and the circular saw 20 directly connected to the motor 19 are provided.
The cut-off device 5 is configured by a circular saw cutting device including

The boring device 6 needs to be constructed so as to be able to form a hole having a predetermined angle, such as 90 degrees, with respect to the cut surface of the wood 4 to be cut by the distilling device 5. The axis of the drill 6a of the device 6 is oriented at a predetermined angle with respect to the cut surface of the wood 4, and is supported by the bed 1 via the support frame 3 so as to be movable back and forth in the axial direction.

Here, the boring device 6 is supported by the bed 1 via the support frame 3 so as to be capable of advancing and retracting in the direction of a predetermined angle, and the support frame 3 for supporting the boring device 6 is fixed to the bed 1 by a predetermined amount. When the support frame 3 is supported so as to be movable back and forth, and when a part of the support frame 3 is supported so as to be movable back and forth in a predetermined angle direction, the support frame 3 is provided with a predetermined boring device 6. It includes a case where it can be moved back and forth in the direction of an angle, and a case where two or more cases of these cases are combined.

The support frame 3 on which the boring device 6 is supported may be provided separately from the support frame 3 that supports the distillation device 5, but in this embodiment, the relative position between the cutting position and the drilling position is set. A boring device 6 is supported by a support frame 3 that supports the table 2 and the distillation device 5 in order to improve dimensional accuracy.

However, here, supporting the boring device 6 on the support frame 3 on which the cut-off device 5 is supported is the same as in this embodiment, in addition to the case where the entire support frame 3 is common. The case where a part of the support frame 3 is common is included.

That is, in this embodiment, the portion of the support frame 3 that is common to the demolition device 5 is only the base 7, and the upright column 22 is attached to the guide frame 21 fixed to the base 7 in the depth direction (front-back direction) of the table. ) Is supported so as to be able to move forward and backward, and the upright column 22 is supported so as to be capable of moving up and down and rotatable about the longitudinal axis.
3 supports the slide 24 so as to be movable back and forth in the axial direction of the rotary column 23, and further supports the slide 24 so as to be movable forward and backward in the direction orthogonal to the axial center of the rotary column 23 when viewed from the front. There is.

Therefore, in this embodiment, the rotary column 23
The boring device 6 can be moved forward and backward in a direction orthogonal to the cut surface of the wood 4 by arranging the axis center of the parallel to the cut surface of the wood 4.

The boring device 6 may be manually moved in a direction orthogonal to the cut surface of the wood 4, but in this embodiment, the boring resistance is kept below a certain level so that the boring can be carried out stably. The boring device 6 is driven forward and backward by a drive device 25 including a cylinder driven by compressed air, pressure oil, electricity or the like.

Although it is not essential to provide the boring device 6 so as to be able to advance and retreat in the depth direction of the table 2, in this embodiment, one boring device 6 has a plurality of holes different in position in the depth direction of the table 2. The boring device 6 is supported by the bed 1 via the support frame 3 so that the boring device 6 can be moved back and forth in the depth direction of the table 2.

Here, supporting the bed 1 so that it can be moved back and forth in the depth direction of the table 2 through the support frame 3 means that the support frame 3 is supported by the bed 1 so that it can be moved back and forth in the depth direction of the table. A case where a part of the frame 3 supports the other part of the support frame 3 so as to be movable back and forth in the depth direction of the table 2, a case where the boring device 6 is supported so that it can move forward and backward in the depth direction of the table 2, and two of these are used. It is meant to include the case where one or more are combined.

In this embodiment, the base 7, which is a part of the support frame 3, and the guide frame 21, the upright column 22, the rotary column 23, and the slide 2 which are the other parts of the support frame 3 are used.
A table 4 is supported so as to be movable back and forth in the depth direction of the table 2.

Further, in this embodiment, the boring device 6
Position of the table in the depth direction of the table accurately, easily, and
In order to adjust the position in the table depth direction of the boring device 6 so that the boring device 6 can be adjusted in a short time, the boring device front-back position adjusting device 26 is provided.

The perforation front-rear position adjusting device 26 is provided across the guide frame 21 and the upright column 22,
By manually operating the handle 27 arranged behind the support frame 3, the position of the boring device 6 in the table depth direction is adjusted.

Of course, this perforation front-back position adjusting device 26
Is provided with a front and rear position adjusting mechanism for adjusting the position of the table of the boring device in the depth direction, and a drive device for driving this, and the drive device is controlled to numerically control the position of the table of the boring device in the depth direction. It can also be configured to do so.

It is not essential to the present invention to provide the boring device 6 so that it can move forward and backward in the table width direction, but in this embodiment, the cutting position, the size of the member, the position of the hole in the table width direction, etc. are set. A boring device 6 is supported by the bed 1 via a support frame 3 so as to be capable of advancing and retracting in the width direction of the table 2 so as to be able to cope with any situation.

Here, that the boring device 6 is supported by the bed 1 via the support frame 3 so as to be movable back and forth in the table width direction means that the support frame 3 is movable back and forth in the table width direction.
Supported by the support frame 3 and a part of the support frame 3 supported by another part of the support frame 3 so as to be movable back and forth in the table width direction. And the case where two or more of these cases are combined.

In this embodiment, the base 7 is supported so as to be movable back and forth in the table width direction so that the punching position can be changed in the table width direction. The base 7 is configured to be fixed to the bed 1 by an appropriate method after adjusting its position. Also, the position of this base 7
It is free to provide a base position adjusting device so that adjustment can be performed easily and in a short time.

Further, although it is not essential to the present invention to provide the boring device 6 so as to be able to move up and down, in this embodiment, the cutting position, the size of the member, the position of the hole in the table width direction, etc. can be arbitrarily corresponded. In order to be able to do so, the boring device 6 is supported by the bed 1 via the support frame 3 so as to be able to move up and down.

Here, the boring device 6 being supported by the bed 1 so that it can be raised and lowered through the support frame 3 means that the support frame 3 is supported by the bed 1 so that it can be raised and lowered.
A case where a part of the bobbin is supported by other parts of the support frame 3 so that it can be lifted and lowered, a case where the boring device 6 is supported by the support frame 3 so as to be lifted, and a case where two or more of these cases are combined. Is the meaning.

In this embodiment, the base 7, which is a part of the support frame 3, the guide frame 21, and the upright column 22, and the rotary column 23 and the slide 2 which are other parts of the support frame 3 are used.
4 is supported so that it can move up and down.

Also, in this embodiment, the boring device 6
In order to adjust the height of the boring accurately, easily and in a short time, the boring height adjusting device 28 of the boring device 6 is adjusted.
Is provided.

In this boring height adjusting device 28, the upper end is projected to the upper end of the rotary column 23, and the rotary column 23
A screw shaft 29 that is rotatably supported by the rack 24 and that engages with a rack on which a slide 24 is formed, and a handle 30 that is attached to and detached from the upper end portion of the screw shaft 29. Column 23, slide 2
4 and the boring device 6 are moved up and down.

Further, instead of the handle 30, a motor for driving the screw shaft 29 may be provided, and the heights of the slide 24 and the boring device 6 may be numerically controlled by controlling the rotation angle of the motor.

Although it is not essential to the present invention to provide the boring device 6 rotatably around the longitudinal axis,
In this embodiment, the boring device 6 is supported by the bed 1 via the support frame 3 so as to be rotatable about the front-rear axis in order to allow the boring angle of the hole to be arbitrarily changed.

Here, that the boring device 6 is supported by the bed 1 via the support frame 3 so as to be rotatable around the front-rear axis is that the support frame 3 is rotatable around the front-rear axis.
And a case where a part of the support frame 3 is supported by another part of the support frame 3 so as to be rotatable around the front-rear axis.
The case where the boring device 6 is supported by the support frame 3 so as to be rotatable around the front-rear axis, and any one of these cases 2
It is meant to include the case where the above is combined.

In this embodiment, the base 7, which is a part of the support frame 3, the guide frame 21 and the upright column 22, the rotary column 23 and the slide 2 which are other parts of the support frame 3 are provided.
4 is rotatably supported about the front-rear axis.

Further, in this embodiment, the boring device 6
In order to adjust the rotation angle around the front-rear axis center of the boring device accurately, easily and in a short time, a boring angle adjusting device 31 for adjusting the rotation angle around the front-rear axis center of the boring device 6 is provided. There is.

This punching angle adjusting device 31 is used for the upright column 2
A transmission mechanism such as a bevel gear device provided in the upper part of 2 and a handle 32 for operating the transmission mechanism are provided. By manually operating the handle 32, the rotation angle of the boring device 6 around the longitudinal axis can be adjusted. Is done.

However, instead of or in addition to the handle 32, a motor for driving the transmission mechanism is provided, and the motor is controlled to numerically control the rotation angle of the boring device 6 around the longitudinal axis. May be.

In this embodiment, as described above, each of the two support frames 3 is provided with one cutting device 5 and one boring device 6. Then, the cutting length of the wood 4 to be processed is adjusted by adjusting the distance between the bases 7.

Therefore, when the cutting length of the wood 4 is set to be short, the boring devices 6 may interfere with each other.

In this embodiment, in order to prevent such interference between the boring devices 6, the slide 24 is supported by the rotary column 23 so as to be movable back and forth in the axial direction of the rotary column 23, and the rotary column 23 and the slide 24 are also supported. A cylinder 33 that uses compressed air, pressure oil, electricity, etc. as a driving source is mounted over the cylinder, and the cylinder 33 is expanded and contracted, so that the slide 24 allows the slide 24 to operate at the lower end of the rotary column 23 and the upper end of the rotary column 23. It is configured such that the position can be switched to two positions including the retreat position.

While the one cylinder 33 is extended and the slide 24 connected to it and the boring device 6 are positioned at the working position, the other cylinder 33 is shortened and the slide 24 connected to this cylinder 33 is shortened. The boring device 6 is located at the retracted position to prevent interference between the two boring devices 6 when the distance between the bases 7 is short.

As shown in FIGS. 1 and 2, a direct cutting device 35 and a table 36 are supported on the bed 1 of the distillation cutting borer via another supporting frame 34.

As shown in the front view of FIG. 6 and the plan view of FIG. 7, the support frame 34 is supported by the bed 1 so as to be movable in the left-right direction, and the base 37 is movable in the left-right direction. Of the guide frame 38, a column 39 supported by the guide frame 38 so as to be movable in the front-rear direction, an elevating frame 40 supported by the column 39 so as to be movable up and down, and a horizontal direction of the elevating frame 40. The slide 41 is movably supported, and the straight cutting device 35 is supported by the slide 41.

The position of the base 37 can be adjusted by a lateral position adjusting device 42 provided across the base 37 and the bed 1. The lateral position adjusting device 42 is rotatably supported by the bed 1 and is supported by the base 37. A screw shaft 44 that meshes with a nut 43 fixed to the motor 43, a motor 46 that drives the screw shaft 44 via a speed reducer 45, and a handle 4 that manually operates the screw shaft 44 via the speed reducer 45.
7 and 7.

A saw position adjusting device 48 for adjusting the lateral position of the guide frame 38 with respect to the base 37 is provided between the base 37 and the guide frame 38. The saw position adjusting device 48 is rotatably supported by the base 37,
The guide frame 38 includes a screw shaft that meshes with a rack and a handle 49 that is fixed to the end of the screw shaft.

The column 39 is reciprocally driven in the front-rear direction by a cylinder 50 which is supported by the guide frame 38 and uses compressed air, pressure oil, electricity or the like as a drive source.

A saw height adjusting device 51 is provided between the column 39 and the elevating frame 40. The saw height adjusting device 51 is rotatably supported by the column 39 about the vertical axis and has an upper end portion. A screw shaft 52 protruding upward from the column 39 and a handle (not shown) attached to and detached from the upper end of the screw shaft 52 are provided. By operating the handle, the elevating frame 40, the slide 41, and the direct cutting device 35 are moved up and down. To do.

The slide 41 is reciprocally driven in the front-rear direction by a cylinder 53 supported by the elevating frame 40 and having compressed air, pressure oil, electricity or the like as a drive source.

In addition, in each of the tables 2, 2, and 36,
As shown in FIG. 3, a clamper 54 for holding the processed wood 4 on the upper surface of the table 2 is provided. The clamper 54 has a cylinder 55 supported on the rear side of the table 2 and driven by compressed air, pressure oil, electricity, etc., and a bracket 56 erected above and rearward of the table 36 so that an intermediate portion thereof can rotate. The lever 57 is supported and has a rear end to which the cylinder 55 is connected, and a front end of the lever 57 is provided with a retainer 58 rotatably supported around the horizontal axis.

When processing parts of frame bodies such as wooden window frames and door frames with this cut-off boring machine, wood 4 of a predetermined length having a predetermined cross-sectional shape is placed on each table 2, 2.36. Then, the clamper 54 fixes the table 2, 2, and 36.

Then, after confirming that the circular saws 20 of the both cutting devices 5 are adjusted to predetermined angles, heights, and positions in the left and right directions, the both cutting devices 5 are simultaneously or sequentially set on the table 2. By moving the table 2 from the rear side to the front side in the depth direction, a member having a predetermined cutting length is cut from the wood 40.

After finishing the cutting, the circular saw 20 of the double-cutting device 5 is separated from the cut surface of the wooden piece 4 to the left and right by the cylinder 16 and then moved in the opposite direction to that of the cutting, and the original table 2 is cut. It is made to wait at the position behind.

After that, one of the boring devices 6 is positioned at the working position, and the boring device 6 is moved in the axial direction of the drill 6a, so that one end of the cut wood 4 is perpendicular to the cutting surface. A round hole is formed.

After that, the other boring device 6 is positioned at the working position, and the boring device 6 is moved in the axial direction of the drill 6a so that the end of the cut wood 4 is perpendicular to the cutting surface. Round holes are formed.

The shape of the hole formed by the boring device 6 can be selected as a straight hole, a stepped hole, a tapered hole, or the like, and a positioning pin for positioning the members to be joined is inserted into the straight hole. The stepped hole or the tapered hole is suitable for inserting the bolt and the nut that connect the members to each other.

That is, according to this cut-off boring machine, the end surface of the member is cut off by the cutting-off device 5 while the wood 4 to be processed is placed on the table and fixed in this way, and at the same time, the boring device 6 is required. Since the holes can be formed, it is possible to obtain a member in which the relative position between the cut surface and the round hole and the angles of the cut surface and the round hole are processed with high accuracy.

The members thus processed with high accuracy are aligned by, for example, pins,
The cut surfaces can be accurately joined to each other without being displaced from each other, and the members that are butted to each other can be firmly assembled by using the bolt and the nut.

The frame body assembled in this manner can be assembled to the frame body in the same manner as the frame body made of, for example, an aluminum sash is assembled to the frame body. Can be attached to the body.

Further, the frame body assembled in this manner has a high dimensional accuracy as a whole, and it becomes possible to standardize the dimensions of the windows and doors put therein and mass-produce the windows and doors. It can be a fixed price.

[0138]

As described above, the cut-off borer of the present invention has a bed fixed to the installation surface and a wood placed above the bed and formed into a desired shape. Table, a cutting device supported by the bed so as to be movable back and forth in the depth direction of the table via a support frame, and cutting the wood placed on the table at a predetermined angle, in common with the support frame or And a boring device which is supported by the bed through another supporting frame and which punches a hole intersecting a cutting surface of the wood to be cut by the cutting device.

As a result, a piece of wood serving as a frame member is placed on the table, and the cut-off device is moved back and forth in the depth direction of the table to accurately, easily, and easily move the wood at a predetermined position and at a predetermined angle. , Cut in a short time.

Before or after the cutting, a boring device is used to punch a hole that intersects the cutting surface of the wood, so that the cutting surface is intersected with the cutting surface at an accurate position and at an accurate angle. The holes to be drilled can be drilled.

Therefore, the ends of each member of the frame body which has been cut off and perforated are brought into contact with each other, and the pin is inserted into the round hole formed at the end of each member. Moreover, the ends of the members can be aligned with each other in a short time, and the members can be firmly connected by inserting the bolt and the nut.

As a result, even an unskilled person such as an amateur can easily assemble the frame with high precision, and it is not necessary to require an expert to assemble the frame.

Further, since the members of the frame can be cut and assembled with high accuracy, the dimensional error of the frame can be suppressed to a small level, and the frame and windows, doors, etc. to be inserted therein can be mass-produced. The cost can be reduced.

[Brief description of drawings]

FIG. 1 is a front view of a distillation boring machine according to an embodiment of the present invention.

FIG. 2 is a plan view of a cut-off borer according to an embodiment of the present invention.

FIG. 3 is a side view of a cut-off boring machine according to an embodiment of the present invention.

FIG. 4 is a front view of a main part of a cut-off boring machine according to an embodiment of the present invention.

FIG. 5 is a plan view of a main part of a cut-off boring machine according to an embodiment of the present invention.

FIG. 6 is a front view of another main part of the cut-off boring machine according to the embodiment of the present invention.

FIG. 7 is a plan view of another main part of the cut-off boring machine according to the embodiment of the present invention.

[Explanation of symbols]

 1 bed 2 table 3 support frame 4 wood 5 cut-off device 6 boring device

Claims (28)

[Claims] 1. A bed fixed to an installation surface, a table placed above the bed and on which wood formed into a desired shape is placed, and a support frame to advance and retreat in the depth direction of the table. A support device capable of supporting the bed as much as possible and cutting the timber placed on the table at a predetermined angle, and a supporting device supported by the bed via a support frame common to or different from the support frame, A boring device comprising: a boring device for boring a hole intersecting a cutting surface of a wood to be cut by the cutting device. 2. The cut-off boring machine according to claim 1, wherein the table is provided so as to be movable up and down with respect to the bed, and a table height adjusting device for adjusting the height of the table is provided. 3. The cut-off borer according to claim 2, wherein the table height adjusting device includes a table height adjusting mechanism for adjusting the table height and a drive device for driving the table height adjusting mechanism. 4. The cut-off boring machine according to claim 1, wherein the table is supported by a support frame which supports the cut-off device. 5. The cut-off boring machine according to claim 1, wherein the cut-off device is supported on the bed via a support frame so as to be movable back and forth in the width direction of the table. 6. The cutoff boring machine according to claim 5, wherein the cutoff cutting device is provided with a cutting position adjusting device for adjusting the position of the table in the width direction. 7. The cutoff boring machine according to claim 6, wherein the cutting position adjusting device comprises a cutting position adjusting mechanism for adjusting the position of the table of the cutoff device in the width direction, and a drive device for driving the cutting position adjusting mechanism. 8. The cut-off borer according to claim 1, wherein the cut-off device is supported by a bed so as to be able to move up and down through a support frame. 9. The cut-off boring machine according to claim 8, further comprising a cutting height adjusting device for adjusting the height of the cut-off device. 10. The cut-off boring machine according to claim 9, wherein the cutting height adjusting device includes a cutting height adjusting mechanism for adjusting the height of the cut-off device and a drive device for driving the cutting height adjusting mechanism. 11. The cut-off boring machine according to claim 1, wherein the cut-off device is supported by a support frame so as to be rotatable about the longitudinal axis. 12. The cut-off cutting borer according to claim 11, further comprising a cutting-angle adjusting device for adjusting a rotation angle of the cut-off device around the longitudinal axis. 13. The cutting-off adjusting device according to claim 12, wherein the cutting-angle adjusting device comprises a cutting-angle adjusting mechanism for adjusting the rotation angle of the cutting-off device about the front-rear axis and a driving device for driving the cutting-angle adjusting mechanism. Bowler. 14. The cut-off boring machine according to claim 1, wherein the cut-off device comprises a motor supported by a support frame and a circular saw directly connected to the motor. 15. An arch body in which a cut-off device is movably held by a support frame, a band saw mounted between both ends of the bow body, and a drive device for driving the bow body and the band saw. The cut-off borer according to any one of claims 1 to 13, further comprising: 16. The cut-off boring machine according to claim 1, wherein the boring device is supported by the bed so as to be movable back and forth in the depth direction of the table via a support frame. 17. The cut-off boring machine according to claim 16, further comprising a boring front-back position adjusting device for adjusting the position of the table of the boring device in the depth direction. 18. The cut-off boring machine according to claim 17, wherein the front and rear boring position adjusting device includes a front and rear boring position adjusting mechanism for adjusting the position of the boring device in the depth direction of the table, and a drive device for driving the front and rear boring position adjusting mechanism. . 19. The cut-off boring machine according to claim 1, wherein the boring device is supported by the bed so as to be movable back and forth in the width direction of the table via a support frame. 20. A boring lateral position adjusting device for adjusting the position of the boring device in the table width direction is provided.
The cut-off borer according to item 9. 21. The hole lateral position adjusting device comprises a hole lateral position adjusting mechanism for adjusting the position of the boring position in the table width direction, and a drive device for driving the hole lateral position adjusting mechanism.
Desoldering bowler described in. 22. The cut-off boring machine according to claim 1, wherein the boring device is supported by a bed so as to be vertically movable via a support frame. 23. The cut-off boring machine according to claim 22, further comprising a boring height adjusting device for adjusting the height of the boring device. 24. The cut-off boring machine according to claim 23, wherein the boring height adjusting device comprises a boring height adjusting mechanism for adjusting the height of the boring device, and a drive device for driving the boring height adjusting mechanism. 25. The boring device is supported by the bed via a support frame so as to be rotatable about the longitudinal axis.
The cut-off borer according to any one of 1 to 24. 26. The cut-off boring machine according to claim 25, further comprising a drilling angle adjusting device that adjusts a rotation angle around a longitudinal axis of the boring device. 27. A cut-off boring machine in which the boring angle adjusting device includes a boring angle adjusting mechanism for adjusting the rotation angle of the boring device about the longitudinal axis, and a drive device for driving the boring angle adjusting mechanism. 28. The cut-off boring machine according to claim 1, comprising a plurality of cut-off devices and the same number of boring devices as the cut-off devices.