JP2000225602A - Laser oscillator registering mechanism of cutting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To carry out simply and accurately registration of a laser beam wherein a cutting position of a material to be cut and a cutting position of a cutting edge tool are indicated. SOLUTION: For this mechanism, a laser oscillator 30 is housed in a hollow part 33 of a support member 32, a ball 34 is fitted between the support member 32 and a laser oscillator 30, a first stopper 35 and a second stopper are fitted by threading to the hollow part, and a laser beam L is conformed to a reference position X by swinging the laser oscillator 30 in a left and right direction by the first stopper 1. Further, the laser beam L is conformed to another reference position by swinging up and down the laser oscillator 30 by the second stopper.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a positioning mechanism for a laser oscillator provided in a cutting machine such as a band saw or a desk circular saw.

[0002]

2. Description of the Related Art Conventionally, as a cutting machine, a laser oscillator is provided on a cutting blade part side, and a cutting position of a cutting material is irradiated with laser light indicating a cutting position of the cutting blade to position the cutting position with the cutting blade. There is Japanese Utility Model Application Laid-open No. Sho 62-150019. However, since the laser oscillator is fixed to the cutting blade portion, if the laser beam is shifted from the cutting position of the cutting blade, the cutting position cannot be accurately adjusted.

A conventional laser oscillator positioning mechanism will be described with reference to FIGS. A cylindrical laser oscillator 70 is pressed and held on a support member 71 by a set screw 72, and the support member 71 is fixed to a base 73 with a bolt 74. One of the fixing holes for the bolt 74 is a round hole 76 and the other is a long hole 77.

When the laser beam L is adjusted to the reference position Y shown in FIG.
0, and set screw 7
Then, the laser oscillator 70 is fixed. Further, when aligning the laser beam L with the reference position X shown in FIG.
Is rotated horizontally, and the bolt 7 is aligned with the reference position X.
4, the support member 71 was fixed.

[0005]

However, the set screw 72
Since the screw tip is not a perfect plane, the laser oscillator 7
0 will be tightened with the eccentric set screw 72,
When the laser oscillator 70 is positioned, the laser oscillator 7
0 may move, and this operation must be repeated several times until the position of the laser beam L is accurately adjusted.
Further, even when the bolt 74 is tightened, the bolt 74 is tightened in an eccentric state due to the inclination of the bearing surface of the support member 71 or the bolt 74 or the like.
Since one could move, this process also had to be repeated several times until it was correctly positioned.

SUMMARY OF THE INVENTION It is an object of the present invention to eliminate the above-mentioned disadvantages of the prior art, and to make simple and accurate alignment of a laser beam with respect to a cutting position of a cutting blade.

[0007]

SUMMARY OF THE INVENTION The object of the present invention is to provide a support member having a concave portion for accommodating a laser oscillator at an appropriate position of a cutting machine main body, a swing fulcrum portion provided at one end of a side edge of the laser oscillator, and A swing fulcrum receiving portion corresponding to the swing fulcrum portion is formed, and a first stopper for swinging the oscillation fulcrum portion of the laser oscillator in the left-right direction around the fulcrum is screw-fitted to the support member. This is achieved by screwing a second stopper that swings up and down about the swing fulcrum of the laser oscillator and providing an elastic body that presses the laser oscillator toward the first stopper and the second stopper.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. 1 is an overall side view of the cutting machine, FIG. 2 is a partial rear view, FIG. 3 is a partial front view, FIG. 4 is a sectional view taken along line AA of FIG. 1, and FIG. 5 is a partial sectional view taken along line BB of FIG. FIG. 6 and FIG.
FIG. 7 is a partial sectional view taken along line DD of FIG. 6, FIG.
Is an enlarged side view and a front view of the laser oscillator, and FIG. 9 is a perspective view of a cutting material. In the present embodiment, a table cutter for swinging a cutting blade will be described as an example of a cutting machine.

In the figure, a turntable 2 is buried in the center of a base 1 so as to be rotatable in the horizontal direction, and the upper surface of the turntable 2 is flush with the upper surface of the base 1. A cutting material 62 such as wood is placed on the upper surfaces of the base 1 and the turntable 2. In the present invention, the member on which the cutting material 62 is placed (the base 1 in the present embodiment).
And the turntable 2) are collectively called a base part. The fence 3 for supporting the side surface of the cutting material 62 is fixed to the upper surface of the base 1. A holder 5 is erected at the rear end of the turntable 2 via a holder shaft 4, and the axis of the holder shaft 4 is positioned so as to substantially coincide with the upper surface of the turntable 2. The fulcrum is pivotally supported on the upper surface of the turntable 2 so as to be tiltable left and right about the upper surface.

As shown in FIG. 2, a long hole 5a centering on the holder shaft 4 is formed from the rear portion of the holder 5, a clamp lever 6 is inserted through the long hole 5a, and a screw formed at the tip of the clamp lever 6 is formed. The portion is screwed into a screw hole formed on the back of the turntable 2. Clamp lever 6
Is loosened, the holder 5 is inclined within the range of the elongated hole 5a with the holder shaft 4 as a fulcrum, and when the clamp lever 6 is tightened, the holder 5 is tightened between the turntable 2 and the clamp lever 6 and fixed at an arbitrary position. You. In addition, slot 5
“a” is formed within a range in which the holder 5 can be tilted by 45 degrees left and right. A base 1 is provided above the holder 5 via a shaft 7.
The cutting blade body 8 is pivotally supported on the upper surface so as to be vertically swingable. A spring 9 for urging the cutting blade body 8 upward is provided between the holder 5 and the cutting blade body 8.

The cutting blade body 8 includes a cutting blade shaft 16, a cutting blade 10, a gear case 12 integrated with a saw cover 11 that covers the upper half of the cutting blade 10, a motor 13 for rotating and driving the cutting blade 10, and a motor. 13 motor shafts 1
4. Transmission belt 23, motor 13 and motor shaft 14
Motor housing 15 and handle 26 for covering and supporting
It is composed of

In FIG. 4, a cutting blade 16 is provided below the gear case 12 in the horizontal direction.
Is rotatably supported by bearings 17 and 18, a cutting blade 10 is fixed to one end of the cutting blade shaft 16 by bolts 19, and a pulley 20 for transmitting power to the cutting blade shaft 16 is provided. A motor housing 15 is provided above the gear case 12, and a motor 13 for rotating the cutting blade 10 is provided inside the motor housing 15. At the end of the motor shaft 14 of the motor 13 rotatably supported by the bearing 21, a pulley 22 is provided so as to be located above the pulley 20. A transmission belt 23 is stretched between the pulleys 20 and 22. The power of the motor 13 is transmitted by the transmission belt 23 from the motor shaft 14 to the pulley 22 and the transmission belt 2.
3, transmitted to the cutting blade 10 via the pulley 20 and the cutting blade shaft 16.

A V-shaped projection 5b is mounted on the front surface of the holder 5, and stopper bolts 24, 25 are located on the rear of the upper surface of the turntable 2 so as to be located on the movement locus of the projection 5b.
Are screw-fitted at right angles. When the holder 5 is tilted, the protrusion 5b is brought into contact with the stopper bolt 24 at a predetermined tilt angle.
Alternatively, the cutting blade main body 8 is engaged with the head of the stopper bolt 25 to set the inclined position of the cutting blade body 8. Usually, the stopper bolt 24,
Reference numeral 25 is provided so as to engage with the protrusion 5b when the holder 5 is inclined at a position of 45 degrees in the left-right direction.

On the upper surface of the turntable 2, a blade plate (not shown) having a groove at the center into which the cutting blade 10 enters is fixed, and when cutting the cutting material 62, the lower end of the cutting blade 10 is lower than the upper surface of the turntable 2. When this occurs, it enters the groove of the blade plate, and serves to prevent the cutting material 62 from fuzzing on the finished surface.

In FIG. 3, a support member 32 is fixed to the front surface of the holder 5. As shown in FIG. 5, a rectangular concave portion 33 is provided at the center of the support member 32, and the rectangular laser oscillator 30 is accommodated in the concave portion 33. The support member 32 is provided at a position where the laser beam L emitted from the laser oscillator 30 passes below the cutting blade 10 when the cutting blade 8 is at the upper limit position. Although not shown, the laser oscillator 30 is provided with a switch for irradiating the laser beam L. In the present embodiment, the laser oscillator 30
The irradiation part 30b of the laser light L is located on an extension of the cutting edge 10a of the cutting blade 10.

In FIG. 6, a hemispherical recess 33a is formed at the front end of the left side of the recess 33 of the support member 32, and a hemispherical recess 30a is formed at the front end of the left side of the laser oscillator 30. The hemispherical concave portion 33a and the hemispherical concave portion 30a
Are fitted, and the laser oscillator 30 can swing freely in the concave portion 33 with the ball 34 as a fulcrum. Hemispherical recess 33a of recess 33
The first stopper 35 is screw-fitted to the rear of the laser oscillator 30 so that the front end of the first stopper 35 contacts the rear end of the left side surface of the laser oscillator 30. A compression spring 36 that presses the laser oscillator 30 toward the first stopper 35 is held between the opposite side surface of the hemispherical concave portion 30a of the laser oscillator 30 and the side surface of the concave portion 33. A second stopper 37 is screw-fitted to the lower surface of the support member 32. The second stopper 37 is located on the opposite side (the right end in FIG. 6) of the ball 34 and substantially at the center (see FIG. 7). Is in contact with the lower surface of the laser oscillator 30. A compression spring 38 that presses the laser oscillator 30 toward the second stopper 37 is held between the upper surface of the laser oscillator 30 and the support member 32. The compression spring 38 faces the second stopper 37 as shown in FIG.
The laser oscillator 30 is kept balanced by arranging it one at a time on the left and right around the center.

In the above configuration, when the first stopper 35 is rotated and moved rightward, the rear end of the left side of the laser oscillator 30 is pushed, and the laser oscillator 30 rotates clockwise in FIG. Then, the laser light L is emitted in a direction tilting to the left. At this time, the amount of movement of the laser oscillator 30 when the knob 34 is rotated once is only the lead of the screw of the knob 34, and the laser oscillator 30 can be finely moved. When the first stopper 35 is moved to the left, the restoring force of the compression spring 36 causes the ball 34 as a fulcrum as shown in FIG.
, The laser beam L is emitted in a direction inclined rightward. To align the horizontal position of the laser light L with the reference position X, the first stopper 35 is rotated and moved in the left-right direction, and the first stopper 35 is stopped when the laser light L matches the reference position X. Thus, the horizontal position of the laser beam L is set. The amount of movement of the laser oscillator 30 when the first stopper 35 is rotated once is only the lead of the screw of the first stopper 35, and the laser oscillator 30 can be finely moved left and right.

Next, when the second stopper 37 is rotated and moved upward, the right end of the lower surface of the laser oscillator 30 is pushed, and the laser oscillator 30 rotates counterclockwise in FIG. The laser beam L is emitted in a direction inclined leftward in FIG. When the first stopper 35 is moved downward, the restoring force of the compression spring 38 rotates clockwise in FIG. 6 around the ball 34 as a fulcrum, and the laser light L is emitted in a direction inclined rightward. As shown in FIG.
In order to adjust the position in the direction perpendicular to the reference position Y, the second stopper 37 is rotated and moved up and down. When the laser beam L matches the reference position Y, the second stopper 37 is stopped. Thus, the position of the laser beam L in the perpendicular direction is set. The amount of movement of the laser oscillator 30 when the first stopper 35 is rotated once is only the lead of the screw of the first stopper 35, and the laser oscillator 30 can be finely moved up and down. With the above setting, the laser light L of the laser oscillator 30 indicates the cutting position of the cutting blade 10 when the cutting blade main body 8 is swung downward.

When cutting the cutting material 62, as shown in FIG. 9, a black line 6 indicating the cutting position is provided on the upper surface of the cutting material 62.
3 is marked, and by matching the black line 63 with the laser beam L applied to the cutting material 62, the cutting blade 10 and the black line 63 are matched. Next, the handle 26 of the cutting blade main body 8 is grasped, and the cutting blade main body 8 is swung downward,
The cutting material 62 is cut. Position to cut (black line 63)
It is better that the deviation between the cutting position and the cutting position is as small as possible, and the cutting position of the cutting blade 10 and the laser beam L must be correctly matched.

Next, a second embodiment for oscillating a laser oscillator will be described with reference to FIGS. 10 is a partial cross-sectional view taken along the line BB of FIG. 3, and FIG.
0 is a sectional view taken along line EE, and FIG. 12 is a partial sectional view taken along line FF in FIG.

A circular concave portion 43a is formed at the front end of the left side surface of the concave portion 43 of the support member 42, and a circular convex portion 40a corresponding to the circular concave portion 43a is formed at the front end of the left side surface of the laser oscillator 40. The laser oscillator 40 is swingable in the concave portion 43 with the arc convex portion 40a as a fulcrum. The first stopper 45 is screw-fitted behind the circular concave portion 43 a of the concave portion 43, and the front end of the first stopper 45 is brought into contact with the rear end of the left side surface of the laser oscillator 40. The laser oscillator 40 is located between the right side surface of the laser oscillator 40 and the side surface of the concave portion 43 of the support member 42.
Is held to the first stopper 45 side. A second stopper 47 is screw-fitted to the lower surface of the support member 42, and the second stopper 47 is located on the opposite side (the right end in FIG. 11) of the arc-shaped concave portion 43a and the arc-shaped convex portion 40a and substantially in the center (see FIG. 12). The tip of the second stopper 47 is in contact with the lower surface of the laser oscillator 40. A compression spring 48 that presses the laser oscillator 40 toward the second stopper 47 is held between the upper surface of the laser oscillator 40 and the support member 42. As shown in FIG. 12, the compression springs 48 are positioned one by one on the left and right with respect to the second stopper 47 to maintain the balance of the laser oscillator 40.

To align the horizontal position of the laser beam L with the reference position X as shown in FIG.
By rotating the laser beam 5 in the left-right direction, the laser oscillator 40 oscillates in the left-right direction about the arc-shaped convex portion 40a as a fulcrum.
Stop the stopper 45.

In order to adjust the position of the laser beam L in the perpendicular direction to the reference position Y in FIG. 8, the second oscillator 47 is rotated and moved up and down, so that the laser oscillator 40 moves up and down around the arc convex portion 40a as a fulcrum. When the laser beam L oscillates and the laser beam L coincides with the reference position Y, the second stopper 47 is stopped. Hereinafter, the cutting operation may be performed in the same manner as in the first embodiment.

Further, a third embodiment for oscillating a laser oscillator will be described with reference to FIGS. 13 is a partial sectional view taken along line BB of FIG. 3, FIG. 14 is a partial sectional view taken along line GG of FIG. 13, and FIG. 15 is a partial sectional view taken along line HH of FIG.

An acute concave portion 53a is formed at the front end of the left side surface of the concave portion 53 of the support member 52, and an acute convex portion 50a corresponding to the acute concave portion 53a is formed at the front end portion of the left side of the laser oscillator 50. The laser oscillator 50 can swing freely in the concave portion 53 with the acute angle convex portion 50a as a fulcrum. The first stopper 55 is screw-fitted behind the circular concave portion 53 a of the concave portion 53, and the tip of the first stopper 55 is brought into contact with the rear end of the left side surface of the laser oscillator 50. The laser oscillator 50 is located between the right side surface of the laser oscillator 50 and the side surface of the concave portion 53 of the support member 52.
Is held to the first stopper 55 side. A second stopper 57 is screw-fitted to the lower surface of the support member 52, and the second stopper 57 is located on the opposite side (right end in FIG. 14) of the acute angle concave portion 53a and the acute angle convex portion 50a and substantially at the center (see FIG. 15). The tip of the second stopper 57 is in contact with the lower surface of the laser oscillator 50. Laser oscillator 5 is provided between the upper surface of laser oscillator 50 and support member 52.
The compression spring 58 that presses the “0” toward the second stopper 57 is held. As shown in FIG. 15, the compression springs 58 are positioned one by one on the left and right sides of the second stopper 57 to maintain the balance of the laser oscillator 50.

To align the horizontal position of the laser beam L with the reference position X as shown in FIG.
By rotating the laser beam 5 in the left-right direction, the laser oscillator 50 swings in the left-right direction with the front end of the arc-shaped convex portion 50a as a fulcrum, and stops the first stopper 55 when the laser beam L coincides with the reference position X. .

Next, in order to adjust the position of the laser beam L in the perpendicular direction to the reference position Y in FIG. 8, the second stopper 57 is rotated and moved up and down as in the first embodiment, so that the laser oscillator 50 When the laser light L coincides with the reference position Y, the second stopper 57 is stopped. Hereinafter, the cutting operation may be performed in the same manner as in the first embodiment.

In this embodiment, a table cutter for swinging a cutting blade has been described as an example, but the present invention is also applicable to a cutter such as a band saw.

[0029]

According to the present invention, the laser oscillator can be finely moved back and forth, right and left by the restoring force of the elastic body and the rotation of the first and second stoppers fitted with the screw. Therefore, the parallelism of the laser beam at right angles and in the horizontal direction can be finely adjusted, and the laser beam can be easily and accurately aligned with the cutting position.

[Brief description of the drawings]

FIG. 1 is an overall side view of a cutting machine according to an embodiment of the present invention.

FIG. 2 is a partial rear view of the cutting machine.

FIG. 3 is a partial front view of the cutting machine.

FIG. 4 is a sectional view taken along line AA of FIG. 1;

FIG. 5 is a partial sectional view taken along line BB of FIG. 3;

FIG. 6 is a sectional view taken along line CC of FIG. 5;

FIG. 7 is a partial cross-sectional view taken along line DD of FIG. 6;

FIG. 8 is an enlarged side view and a front view of the laser oscillator.

FIG. 9 is a perspective view of a cutting material.

FIG. 10 is a partial cross-sectional view taken along the line BB of FIG. 3 showing the second embodiment.

FIG. 11 is a sectional view taken along line EE of FIG. 10;

FIG. 12 is a partial sectional view taken along line FF of FIG. 11;

FIG. 13 is a partial cross-sectional view taken along the line BB of FIG. 3 showing the third embodiment.

FIG. 14 is a sectional view taken along line GG of FIG. 13;

FIG. 15 is a partial sectional view taken along line HH of FIG. 14;

FIG. 16 is a side view and a front view of a conventional laser oscillator.

FIG. 17 is a top view of FIG. 16;

FIG. 18 is a side view of FIG. 17;

[Explanation of symbols]

30, 40, 50 ... laser oscillators, 32, 42, 52
... support members, 33, 44, 54 ... concave portions, 30a, 33a
... hemispherical concave portion, 34 ... ball, 35, 45, 55 ... first stopper, 36, 38, 46, 48, 56, 58 ... compression spring, 37, 47, 57 ... second stopper, 40a ... arc convex portion, 43a: arc concave part, 50a: acute convex part, 53a: acute concave part, L: laser beam.

[Procedure amendment]

[Submission date] December 24, 1999 (1999.12.
24)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claim 1

[Correction method] Change

[Correction contents]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0005

[Correction method] Change

[Correction contents]

[0005]

However, the set screw 72
Since the screw tip is not a perfect plane, the laser oscillator 7
Will be tightening the 0 in set screw 72, may move the laser oscillator 70 when the alignment of the laser oscillator 70, it is necessary to accurately repeat the task several times to up to align the laser beam L Was. Further, until when tightening the bolt 74 also due inclination of the seating surface of the support member 71 and a bolt 74, because there is a case at the time of working for tightening the bolts 74 the support member 71 moves, match the same exact position This process had to be repeated several times.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction contents]

[0007]

SUMMARY OF THE INVENTION The object of the present invention is to provide a support member having a concave portion for accommodating a laser oscillator at an appropriate position of a cutting machine main body, a swing fulcrum portion provided at one end of a side edge of the laser oscillator, and fulcrum receiving unit corresponding to the swing fulcrum portion is formed in, rate the swing fulcrum portion as a fulcrum on the support member
A first stopper so screw fitting for swinging the Heather oscillator in the lateral direction, laser fulcrum swing fulcrum portion to the support member
This is achieved by fitting a second stopper that swings the oscillator up and down with a screw, and providing an elastic body that presses the laser oscillator toward the first stopper and the second stopper.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0017

[Correction method] Change

[Correction contents]

In the above configuration, when the first stopper 35 is rotated and moved rightward, the rear end of the left side of the laser oscillator 30 is pushed, and the laser oscillator 30 rotates clockwise in FIG. Then, the laser light L is emitted in a direction tilting to the left. At this time, the amount of movement of the laser oscillator 30 when the first stopper 35 makes one rotation is equal to the first amount .
Only and will screw of the lead of the stopper 35, as possible out that slightly moving the laser oscillator 30. When the first stopper 35 is moved to the left, the restoring force of the compression spring 36 rotates counterclockwise in FIG. 5 around the ball 34 as a fulcrum, and the laser light L is emitted in a direction inclined rightward. To align the horizontal position of the laser light L with the reference position X, the first stopper 35 is rotated and moved in the left-right direction, and the first stopper 35 is stopped when the laser light L matches the reference position X. Thus, the horizontal position of the laser beam L is set .

[Procedure amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0018

[Correction method] Change

[Correction contents]

Next, when the second stopper 37 is rotated and moved upward, the right end of the lower surface of the laser oscillator 30 is pushed, and the laser oscillator 30 rotates counterclockwise in FIG. The laser beam L is emitted in a direction inclined leftward in FIG. When the second stopper 37 is moved downward, the restoring force of the compression spring 38 rotates clockwise in FIG. 6 around the ball 34 as a fulcrum, and the laser light L is emitted in a direction inclined rightward. As shown in FIG.
In order to adjust the position in the direction perpendicular to the reference position Y, the second stopper 37 is rotated and moved up and down. When the laser beam L matches the reference position Y, the second stopper 37 is stopped. Thus, the position of the laser beam L in the perpendicular direction is set. The amount of movement of the laser oscillator 30 when the second stopper 37 makes one rotation is only the lead of the screw of the second stopper 37 , and the laser oscillator 30 can be finely moved up and down. With the above setting, the laser light L of the laser oscillator 30 indicates the cutting position of the cutting blade 10 when the cutting blade main body 8 is swung downward.

Continuation of the front page (72) Inventor Kenichi Matsunaga 70 Minamiharada, Kita-Nagano, Haramachi-shi, Fukushima F-term (reference) 3C040 AA01 AA16 GG44

Claims (4)

[Claims] 1. A cutting machine in which a base for supporting a cutting material, a cutting blade for cutting the cutting material, and a laser oscillator for irradiating a cutting position are supported by the main body of the cutting machine. A supporting member having a recess for accommodating the same is provided, a swing fulcrum portion is provided at one end of a side end portion of the laser oscillator, and a swing fulcrum receiving portion corresponding to the swing fulcrum portion is formed in the recess, and A first stopper for swinging in the left-right direction around the swinging fulcrum of the laser oscillator is screw-fitted, and a second stopper for swinging up and down on the swinging fulcrum of the laser oscillator as the fulcrum is screwed to the support member. A laser oscillator positioning mechanism for a cutting machine, comprising an elastic body that is fitted and presses the laser oscillator toward the first stopper and the second stopper. 2. A laser oscillator positioning mechanism for a cutting machine according to claim 1, wherein said swing fulcrum portion and said swing fulcrum receiving portion are hemispherical recesses, and spheres are provided between said hemispherical recesses. . 3. The laser oscillator positioning mechanism for a cutting machine according to claim 1, wherein said swing fulcrum portion is an arc portion and said swing fulcrum receiving portion is an arc recess. 4. A laser oscillator positioning mechanism for a cutting machine according to claim 1, wherein said swing fulcrum portion is an acute angle convex portion and said swing fulcrum receiving portion is an acute angle concave portion.