JPH11114904A - Device and method for forming lateral hole in wood - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method and device that can form a lateral through hole in a side portion of a wood simply, quickly and highly accurately and perform continuously automatic working operations. SOLUTION: A wood (b) is vertically transferred relative to a transfer path 5 and is then fixed with grasping means 2 provided at suitable locations along this transfer path 5 in such a manner that a longitudinal center of the wood (b) coincides with a central position of the transfer path 5. Then, a lateral through hole is formed from each side of the wood in a width direction thereof so that the center of each hole coincides with each other with a pair of hole forming means 3a, 3b provided on both sides of the transfer path 5 orthogonally thereto.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wood lateral drilling apparatus and a wooden lateral drilling method which can easily and precisely perform predetermined drilling on the side of wood.

[0002]

2. Description of the Related Art At present, connecting members such as beams, girders and columns used in wooden houses is generally performed through various fittings at joints thereof.

For example, when connecting a beam and a beam, FIG.
As shown in (1), a connection fitting e is attached to the girder d that receives the load, and the beam f to which the load is applied is fitted into the connection fitting e of the girder d and pinned.

Accordingly, the spar d and the beam f are provided with a counterbore hole g and a bolt hole h for mounting the connection fitting e.
Also, a mounting hole i for the connection fitting e is machined in advance.

However, these holes g, h, and i are formed while the operator individually measures each girder d and the beam f while using a jig. Variations occur, causing inconvenience during assembly.

Further, as described above, the measurement and marking by a worker for each piece of wood are extremely inefficient in work efficiency and cannot cope with a large amount of drilling in a short time.

[0007] In particular, in the processing of a horizontal hole to be penetrated, when a wide width (thickness) of wood is processed or a horizontal hole having a small diameter is worked, a series of operations using a drill are performed. A phenomenon in which the hole is gradually deviated from the center of the perforation may occur, and it may not be possible to perforate the desired position. And other various problems.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and vertically transports wood to a transfer path. The center in the length direction of the wood is fixed in accordance with the center position of the transfer path, and a pair of punching means provided on both sides of the transfer path so as to be orthogonal to the transfer path, from both sides in the wood width direction. By penetrating the horizontal hole whose center of the holes coincides with each other, it is possible to easily, quickly and accurately drill a horizontal hole that penetrates the side of the lumber, and to perform continuous automatic processing. It is an object of the present invention to provide a drilling apparatus and a method for drilling a horizontal wood piece.

[0009]

Means of the present invention for achieving the above object are a timber position detecting means provided on a timber transfer path to set a stop position of the timber, Gripping means provided at an appropriate position on the center position of the transfer path and fixing the wood so as to match the center line in the length direction of the wood, and It is provided on both sides, and comprises a pair of perforating means for perforating a lateral hole in the side surface of the wood, and the pair of perforating means are opposed to each other in a straight line in a direction orthogonal to the wood transfer direction line of the transfer path. The present invention has a configuration of a horizontal wood hole drilling apparatus in which the drilling axes coincide with each other and the movement is controlled arbitrarily in the X-axis direction, the Y-axis direction, and the Z-axis direction in accordance with a program previously input to the control means.

A timber position detecting means provided on a timber transfer path to set a stop position of the timber; and a timber position detection means provided at an appropriate position on a center position of the timber transfer path in the timber transfer path.
Gripping means for fixing the timber so as to match the center line in the length direction of the timber, and provided on both sides of a center position of the transfer path in the timber transfer direction line, and a lateral hole formed in a side surface of the timber. A pair of perforating means, wherein the pair of perforating means are linearly opposed to each other in a direction orthogonal to a direction of wood transport in the transport path, and their perforating axes coincide with each other; Is controlled arbitrarily in the X-axis direction, the Y-axis direction, and the Z-axis direction according to a program input in advance, and a drilling tool is attached to the drilling portion via a steadying means provided on the mounting body. The steadying means includes a sliding member provided on a holding member provided on the mounting member so as to be able to advance and retreat with respect to a wood surface, and an outer peripheral portion of the drilling tool provided on the front side of the sliding member. Guide member to be carried, and the guide member In a configuration of a wood lateral hole drilling device comprising: a pressing member provided on the front surface and abutting against a wood surface; and a pressing member provided on the rear side of the sliding body and constantly biasing the sliding body toward the wood surface side. is there.

Further, the pair of drilling means is constituted by two types of drills and a counterbore cutter which are arranged in parallel in the vertical direction.

The timber is vertically transferred to the transfer path in the length direction of the timber, and the center of the timber in the length direction is moved to the center of the transfer path by a gripping means provided at an appropriate position on the transfer path. It is fixed in accordance with the position, and a pair of perforating means provided on both sides of the transfer path so as to be orthogonal to the transfer path allows a horizontal hole having the same perforation axis to penetrate from both sides in the width direction of the wood. It is in the method of drilling wood horizontal holes.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a wood lateral hole drilling apparatus and a wooden horizontal hole drilling method according to the present invention will be described with reference to the drawings.

In FIG. 1 to FIG. 3, reference symbol A denotes a horizontal wooden hole drilling apparatus used in the horizontal wooden hole drilling method according to the embodiment of the present invention. For example, as shown in FIG.
It is used for drilling for attaching a connection fitting e used for connecting components such as the beam f and the beam d. The wood position detecting means 1, the gripping means 2, and a pair of drilling means It is basically composed of 3a, 3b and control means 4.

The wood position detecting means 1 determines the stop position of the wood b in the transfer path 5 for the wood b.
A laser beam irradiation device or the like that is provided above the body 6 and is irradiated downward is used.

The irradiation position of the laser beam on the transfer path 5 is always determined, and the coordinates are input to the control means 4 in advance. As shown in FIG. When the laser beam emitted from the means 1 matches the ink marking 1a attached to the upper surface of the wood b, the wood b is fixed in the transfer path 5 by operating the gripping means 2 described later. Positioning in the longitudinal direction is performed, and a reference for determining a processing position dimension from the front edge of the wood b can be obtained.

In this wood position detecting means 1, FIG.
As shown in FIG. 10A, even when the wood b moves from the right direction in the transfer path 5, as shown in FIG.
When the vehicle moves from the left, the black position 1a of the wood b is detected by the wood position detecting means 1 provided at the same position. 4 is sent.

The above-mentioned gripping means 2 is provided at an appropriate position on the center position (pp-p line, which is the direction of the wood transfer direction shown in FIG. 2) in the transfer path of the wood b near the wood position detecting means 1. The wood b is fixed so as to coincide with the center line in the length direction of the wood b (the rr line shown in FIG. 4), and a pair of right and left vice members 2a, 2a is opened and closed by an opening / closing means 8 such as a fluid cylinder. Moves relative to the center on the pp line, so that the center of the wood b always moves along the transfer path 5.
It can be the upper gripping center.

The pair of perforating means 3a and 3b are
On both sides of the transfer path 5 in the wood transfer direction line pp, two sets are provided so as to face the wood b, and lateral holes h and i or digging g are provided on the side of the wood b (see FIG. 4). Dawn.

In accordance with a program previously input to the control means 4 to be described later, a pair of piercing means 3 are arbitrarily arranged in the X-axis direction, the Y-axis direction and the Z-axis direction.
The movements of a and 3b are individually controlled.

The structure is such that moving means 11a, 10b, which are movable by means of moving means 10a, 10b, such as servomotors, which can be numerically controlled in the X-axis direction, to horizontal guides 9a, 9b provided on the body 6, An elevator 11b is attached to the vertical guides 60a, 60b of the movable bodies 11a, 11b so that the elevators 12a, 12b can be freely moved up and down by elevating means 13a, 13b composed of a servomotor or the like which can be numerically controlled.

Further, a pair of upper and lower mounting members 16a, 16b and 17a, 17b which advance and retreat with respect to the wood b fixed to the gripping means 2 are provided on the extension guides 14a, 14b and 15a, 15b of the lifting members 12a, 12b. Are movably mounted by feeding means 18a, 18b and 19a, 19b such as fluid cylinders.

The pair of upper and lower mounting bodies 16a, 16
b and 17a, 17b respectively have a counterbore cutter 20a, 20b and a drill 21a,
Drive members 22a, 22 such as a motor for rotatingly driving 21b
b and 23a, 23b are detachably attached. These counterbore cutters 20a, 20b and the drills 21a, 21b are, in particular, the drills 21a, 21b.
b is, as shown by the ss line in FIGS. 2 and 9,
The drilling axes are aligned.

The counterbore cutters 20a, 20
5b, as shown in FIG. 5 and FIG. 6, the leading edge abuts on the cutting surface of the wood b, and the outer peripheral portions of the counterbore cutters 20a, 20b are covered with the coating cylinders 24a, 24b to prevent chips from scattering. The coating cylinders 24a, 24b are provided so as to be movable in the axial direction of the spot facing cutters 20a, 20b via stays 25a, 25b attached to the attachment bodies 16a, 16b. Coating cylinder 24a, 24b
When the front edge of the abutment comes into contact with the cutting surface of the wood b, and the counterbore cutters 20a and 20b are extended for cutting,
A structure is provided in which the counterbore cutters 20a and 20b are stopped at their contact positions so as not to be linked with the movement of the counterbore cutters 20a and 20b.

Further, the counterbore cutters 20a and 20b are
The cutting depth is controlled by cutting depth adjusting means 26a, 26b, and as shown in FIGS. 5 and 6, sensors 27a, 27b provided at predetermined positions of the stays 25a, 25b, Stays 25a, 25b
Mounting member 2 for sliding rods 28a and 28b slidably provided
Adjustable detectors 30a, 3 provided on 9a, 29b
0b, and counterbore cutters 20a, 20b.
At the time of incision cutting of b, the coating cylinders 24a and 24b apparently retreat, whereby the sensors 27a and 27b detect the movement of the detectors 30a and 30b, and
The feeding of the feeding means 18a and 18b in the positions a and 20b is stopped and retracted.

The mounting members 29a, 29b to which the detectors 30a, 30b are mounted can be always returned to the detection origin position by means of coil springs 31a, 31b such as coil springs provided on the sliding rods 28a, 28b. is there.

The drills 21a, 21b
The drill 21 shown in FIG.
anti-sway means 3 for preventing the axes of a and 21b from swaying
2a, 32b are attached, and the sliding bodies 33a, 3b
3b, guide members 34a, 34b, pressing members 36a,
36b.

The sliding members 33a, 33b
Are holders 37a, 37 provided on the attachments 17a, 17b.
b is provided so as to be able to advance and retreat with respect to the surface of the wood b, and normally a pressing member 36 provided on the rear side of the sliding members 33a and 33b.
a, 36b, the sliding bodies 33a, 33b
And a connecting rod 38a extending to the rear side.
The springs 38a and 39b, such as coil springs, provided on the outer surface 38b urge the actuator toward the retreat limit.

The guide members 34a and 34b are provided on the front side of the sliding bodies 33a and 33b, and the outer peripheral portions of the drills 21a and 21b, which are drilling tools, are provided on the drills 21a and 21b.
As shown in detail in FIG. 8, bushes 40a and 40b made of synthetic resin or the like that come into contact with the outer circumferences of the drills 21a and 21b are held by the sliding bodies 33a and 33b. Are supported so as not to be eccentric to the bearings 41a and 41b provided in the bearing.

The above-mentioned control means 4 uses a conventional computer.
a, 27b, etc.

According to the apparatus A and the method according to the embodiment of the present invention configured as described above, the following effects are obtained. For example, the digging g When drilling the horizontal holes h and i, the timber b according to the purpose of use is carried into the transfer path 5, and these processing data are input to the control means 4 in advance.

Then, as the wood b is carried into the transfer path 5, when the irradiated laser beam, which is the wood position detecting means 1, and the black marking 1a provided on the front upper surface of the wood b coincide with each other. Positioning of the processing position of the wood b is automatically obtained. At this time, the gripping means 2 is operated to operate the wood b.
Is fixed.

For example, as shown in FIG.
When data is to be drilled, the data of the drilling positions L1, L2, L3 are programmed in the control means 4 in advance, so that the moving means 10a, 10b and the elevating means 13a, 13b
To move the moving bodies 11a, 11b and the elevating bodies 12a,
When the drill 12b is moved and the drilling means 3a, 3b is operated, the drills 21a, 21b correspond to the drilling positions.

Next, when one of the drilling means 3a is fed out to one side surface of the wood b by the feeding means 19a, the steadying means 32a moves forward together with the mounting member 17a, and as shown in FIG. The pressing member 35a on the edge surface comes into contact with the material b surface.

Further, when the feeding means 19a is operated, the movement of the steadying means 32a is restricted by the contact with the wood b. However, since the steadying means 32a slides on the holding member 37a, the movement of the drill 21a is reduced. Do not prevent going straight.

Therefore, as the mounting body 17a advances,
The drill 21a cuts into the wood b and starts drilling. Cutting proceeds until the center line rr of the wood b is exceeded, after which the drill 21a returns to the standby position.

Next, on the other side of the wood b at the perforated position,
As shown in FIG. 9, the other drilling means 3b corresponds to a predetermined program. When the mounting body 17b is extended by the extending means 19b, the drill 21b and the steadying means 32b are moved. The pressing member b provided on the front side edge of the steadying means 32b
The steadying means 3
Although the movement of 2b is restricted, the steadying means 32b slides on the holder 37b and does not hinder the straight movement of the drill 21b.

Therefore, as the mounting body 17b advances,
The drill 21b cuts into the wood b and starts drilling, and the cutting proceeds until it exceeds the center line rr of the wood b, and it penetrates through the previously drilled horizontal hole so that its axis is accurate. Is formed, and thereafter, the drill 21b also returns to the standby position, and the main body of the connecting fitting e (see FIG. 4) used for the framing construction and this The lateral hole i of the pin that engages with the pulling fitting that engages with the main body is machined.

This hole is formed, for example, when the width of the wood b is 1
It is particularly effective when it becomes as large as 50 mm.
Drill 21 having a stroke of slightly more than half of the material width
a, 21b is sufficient, long hole drill 2
Since it is not necessary to use the drills 1a and 21b, the positional accuracy and the straight traveling accuracy of the horizontal holes due to the bending and deflection of the drills 21a and 21b do not decrease, and the drills 21a and 21b to be used can be used. For example, when the drill is thin, it is expected to improve the straightness accuracy by suppressing the deflection and bending of the drill.

The boring drills 21a and 21b are always held at their rotation centers by the bushings 40a and 40b of the anti-vibration means 32a and 32b and the bearings 41a and 41b. Drilling drill 21 by feeding out of feeding means 19a19
Even if the cutting tips of the a and 21b are extended, the steadying is performed in the very vicinity of the wood b, so that the high precision straightness of the drills 21a and 21b can be obtained.

Next, as shown in FIG. 4, when machining the digging g for the girder d, the pair of drilling means 3
In a and 3b, counterbore cutters 20a and 20b which are arranged side by side in the vertical direction of the drills 21a and 21b are used.

Since the data of the drilling positions L4 and L5 are programmed in the control means 4 in advance, the moving means 10a and 10b and the elevating means 13a and 13b are operated to move the moving bodies 11a and 11b and the elevating bodies 12a and 12b. Is moved to operate the drilling means 3a, 3b, the counterbore cutters 20a, 20b correspond to the corresponding digging position, and preparation for digging on one surface of the wood b is completed. .

Next, when one of the drilling means 3a is fed out to one side surface of the wood b by the feeding means 18a, the covering cylinder 24a advances together with the mounting body 16a, as shown by a virtual line in FIG. The leading edge surface contacts the material b surface.

Further, when the feeding means 18a is operated, the movement of the coating cylinder 24a is restricted by the contact with the wood b. However, the sliding movement of the stay 25a of the coating cylinder 24a prevents the counterbore cutter 20a from moving straight. Absent.

Therefore, as the mounting body 16a advances,
The counterbore cutter 20a cuts into the wood b and starts digging. When the counterbore cutter 20a proceeds with digging of a predetermined size, the detectors 30a and 30b of the covering cylinder 24a are attached to 27a and 27b provided on the stay 25a. , And this detection signal is output from the feeding means 1 through the control means 4.
8a, the cutting of the spot facing cutter 20a is stopped, and the return to the standby position is performed.

As a result, a digging g of a predetermined depth is processed at a predetermined lumber position on the lumber b, and a round washer of a connecting fitting e (see FIG. 4) used for framing is fitted. Can be combined.

Further, when the counterbore g is formed on the other side of the wood b, the counterbore cutter 20b in the drilling means 3b is used, and the same operation is performed.

The horizontal hole h serving as a bolt hole for fixing the round washer in the digging g is provided with the above-described drilling means 3a, 3b.
The through-hole h is formed by the drills 21a and 21b having a predetermined diameter b.
The position accuracy and the straight running accuracy of the horizontal hole do not decrease due to the bending or deflection of the a and 21b.

In this case, the operation is performed by the same operation as in the above-described lateral hole drilling, and the detailed description is omitted.

In the apparatus A of the embodiment of the present invention, a pair of drilling means 3a, 3b is provided with a drill 2 provided in parallel in the vertical direction (vertical direction) of the moving bodies 11a, 11b.
1a, 21b and the counterbore cutters 20a, 20b, a counterbore g for mounting the connection fitting e and a horizontal hole h, for bolting the connection fitting e. h has a great effect that continuous processing can be performed by one line.

Further, the wood position detecting means 1 is capable of setting the size of the wood b based on the irradiation position of the laser beam being constant and making the wood b a dimension based on this position. Can be performed by only one-way transfer operation without reversing.

In FIG. 1 and FIG. 3, reference numeral 50 denotes a means for detecting the upper surface position of the wood b provided above the transfer path 5, and a detecting member 51 provided at the moving end of the wood b using a fluid cylinder or the like. The upper surface position of the wood b is detected by contacting the upper surface of the wood b.

In this detection, for example, the rotating body 52
A linking line 53 having a tip end secured thereto is connected to the detection body 51. The amount of extension of the linking line 53 is converted into the amount of rotation of the rotating body 52, and this signal is sent to the control means 4. .

Further, by pressing the upper surface of the wood b, the detecting body 51 is clamped between the detecting member 51 and a transfer member 54 such as a roller in the transfer path 5 to perform a clamping action.

[0055]

According to the present invention having the above-described structure, a pair of punching means whose axes are oppositely aligned with the timber are provided on both sides of the transfer path in the direction in which the timber is transported. Therefore, even if the width of the wood becomes large, a drilling tool having a stroke that is slightly more than half of the width of the wood is sufficient, and it is not necessary to use a drilling tool having a longer dimension than the width of the wood. Therefore, high-precision drilling can be easily and reliably performed without lowering the positional accuracy and straight-running accuracy of the horizontal hole due to bending or runout of the drilling blade.

By providing the anti-vibration means for holding the periphery of the drilling tool, the bending and deflection of the drilling tool can be suppressed as much as possible, so that the accuracy of processing the horizontal hole in the wood is further improved.

The pair of drilling means is composed of two types of drills, which are vertically arranged side by side, and a counterbore cutter, thereby performing various drilling processes on a structural material such as a horizontal member. It can be performed efficiently. And the like.

[Brief description of the drawings]

FIG. 1 is a front view showing a part of an embodiment of an apparatus adopting a method for drilling a horizontal wood hole according to the present invention.

FIG. 2 is a schematic plan view of FIG.

FIG. 3 is a schematic side view of FIG.

FIG. 4 is a perspective view of a structural material showing an example of a hole processed by the apparatus in FIG. 1;

FIG. 5 is a front view showing a main part of a drilling means using the spot facing cutter in FIG. 1;

FIG. 6 is an explanatory diagram showing an enlarged cut depth adjusting means in FIG. 5;

FIG. 7 is a partially longitudinal front view showing a main part of a drilling means using the drill in FIG. 1;

FIG. 8 is an enlarged sectional view showing the steady rest means in FIG. 7;

FIG. 9 is an explanatory view showing a state in which a horizontal hole is drilled by the steady rest means in FIG. 7;

FIG. 10 is a perspective view showing a wood gripping positioning state by the wood position detecting means in FIG. 1;

[Explanation of symbols]

 b Wood h, i Horizontal hole 1 Wood position detecting means 2 Gripping means 3a, 3b Drilling means 4 Control means 5 Transfer path 20a, 20b Drilling drill 21a, 20b Counterbore cutter 32a, 32b Anti-sway means 33a, 33b Sliding body 34a, 34b Guide member 36a, 36b Press member

Claims (4)

[Claims] 1. A timber position detecting means provided on a timber transfer path to set a stop position of the timber, and a timber position detection means provided at an appropriate position on a center position of the timber transfer path in the timber length direction, Gripping means for fixing the timber so as to match the center line of the timber, and a pair of perforations provided on both sides of the center of the transfer path in the timber transfer direction line to form a lateral hole in a side surface of the timber. The pair of perforating means are linearly opposed in a direction orthogonal to the wood transport direction line of the transport path, and their perforating axes coincide with each other, and according to a program previously input to the control means. Therefore, the wood horizontal hole drilling device is controlled to move arbitrarily in the X-axis direction, the Y-axis direction, and the Z-axis direction. 2. A timber position detecting means provided on a timber transfer path for setting a stop position of the timber, and a timber position detecting means provided at an appropriate position on a center position of the timber transfer path in a length direction of the timber. Gripping means for fixing the timber so as to match the center line of the timber, and a pair of perforations provided on both sides of the center of the transfer path in the timber transfer direction line to form a lateral hole in a side surface of the timber. The pair of perforating means are linearly opposed to each other in a direction orthogonal to the direction of wood transport in the transport path, and their perforating axes coincide with each other. Therefore, the movement is arbitrarily controlled in the X-axis direction, the Y-axis direction, and the Z-axis direction, and the drilling blade is attached to the drilling portion via the steadying means provided on the mounting body. Stop means A sliding member provided on the holding member provided on the mounting member so as to be able to advance and retreat with respect to a wood surface; a guide member provided on the front side of the sliding member to hold an outer peripheral portion of the drilling blade; A horizontal wood hole drilling machine comprising: a pressing member provided on the front surface and abutting against a wood surface; and a pressing member provided on the rear side of the sliding body and constantly biasing the sliding body toward the wood surface side. apparatus. 3. A horizontal wooden piece according to claim 1, wherein said pair of drilling means comprises two types of drills, which are juxtaposed in the vertical direction, and a counterbore cutter. Drilling device. 4. The timber is vertically transferred to a transfer path with the length direction of the timber oriented, and the center of the timber in the length direction is set to the center of the transfer path by a gripping means provided at an appropriate position on the transfer path. It is fixed in accordance with the position, and each of a pair of punching means provided on both sides of the transfer path so as to be orthogonal to the transfer path, penetrates a horizontal hole whose drilling axis coincides from both sides in the wood width direction. A method for drilling a horizontal wood hole, characterized by processing.