JP2907818B1 - Cutting equipment - Google Patents

Abstract

An object of the present invention is to provide a cutting apparatus capable of finishing both cut surfaces while a circular saw for cutting makes one reciprocation in a predetermined range. SOLUTION: A processing table 2 on which a material is placed at the time of processing, a processing means 3 capable of protruding and retracting from the lower surface of the processing table to a top surface, and a processing table so that a blade of the processing means can run. Running groove 22 provided through
And a cutting circular saw 31 and a finishing circular saw 3 running after the cutting circular saw.
2 and the direction of this circular saw for finishing is
The radial direction B is inclined with respect to the running direction C of the processing means, and at least the finishing circular saw of the processing means is provided so as to be able to move in a direction perpendicular to the running direction. And

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for processing not only a wooden plate or a resin plate but also a metal plate such as aluminum which can be cut by a circular saw.

[0002]

2. Description of the Related Art Conventionally, a device (so-called running saw) for cutting a plate while running a circular saw has been a device for simply cutting a plate to a predetermined size. For finishing, secondary processing such as finishing processing of the cut surface of the product after cutting has been required. As such secondary processing, it has been common to finish the cut surface by using a plane machine for a wooden plate and a milling machine for a metal plate.

[0003]

However, in the case of performing secondary processing, if the cut surface of a product cut to a predetermined size is reworked, it naturally becomes slightly smaller than the predetermined size. In this case, the dimensions must be calculated in advance in consideration of the cutting allowance for rework, which is very complicated. Also, when using a device different from the cutting device, such as a milling machine, to finish the cut surface, the product after cutting must be taken out of the cutting device and then mounted on a milling machine, etc. It was inefficient work.

Therefore, the present inventor has studied a method in which finishing can be performed simultaneously with a single cutting device. However, the state of the cut surface varies depending on the angle at which the cutting edge of the circular saw contacts the material. However, it was not possible to simultaneously finish the cut surfaces on both sides well, and even if the finish of one cut surface was good, the finish state of the other cut surface was insufficient . Therefore, upon use, a method has been adopted in which, after finishing one cut surface, the material is turned over and a circular saw is brought into contact with the other cut surface in a similar state. However, even with this apparatus, the trouble of reattaching the cut product to the apparatus is the same as the case of using the milling machine or the like, and did not improve the working efficiency.

In view of the above points, an object of the present invention is to provide a cutting apparatus capable of finishing both cut surfaces while a circular saw for cutting makes one reciprocation in a predetermined range.

[0006]

According to the present invention, there is provided a processing table on which a material is placed during processing, a processing means capable of protruding and retracting from a lower portion of the processing table to an upper surface, and a blade of the processing means. In a cutting device having a running groove provided so as to be able to run through a working table, the working means is constituted by a cutting circular saw and a finishing circular saw running after the cutting circular saw. At the same time, the direction of the finishing circular saw is such that its radial direction is inclined with respect to the running direction of the processing means, and at least the finishing circular saw of the processing means is perpendicular to the running direction. The gist of the present invention is a cutting device that is provided so as to be able to move in parallel.

[0007] The cutting circular saw and the finishing circular saw constituting the processing means are provided on the same traveling base and are independently provided on the base so that they can be individually raised and lowered. It is preferable that the angle at which the finishing circular saw is inclined and the distance of the parallel movement can be adjusted.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, an embodiment of the present invention includes a surface plate 1 on which a large area of material A can be placed alone or in a stacked state, and a processing table 2 provided continuously to the surface plate 1. Constitute the outline of the apparatus. The platen 1 is provided with a step ruler 11 so that the material A placed on the platen 1 can be sent out to the working table 2 by a predetermined size. Also,
Step guides 12a and 12b are provided on both sides of the platen 1 so as to regulate the direction in which the material A is sent out by the step ruler 11. The processing table 2 has a holding portion 21 for holding the material A at the time of cutting.
The pressing portion 21 is lowered to press the material A toward the surface of the processing table 2. A processing means 3 is disposed below the processing table 2 so as to be able to run (see FIG. 2). The processing means 3 includes a circular saw for cutting 31 and a circular saw for finishing 32, both of which are provided above the base 33 so as to be able to move up and down. In addition, the base 33 is used for the traveling rail 3.
4 so as to be able to travel along.
The running of the base 33 is performed by a ball screw rotating at a predetermined position and a screw threaded by a female screw screwed into the ball screw. The female screw is mounted on the base 33, and the ball screw is laterally parallel to the running rail 34. Has been established.

Here, the processing table 2 is provided with a long penetrating groove 22 in the direction in which the material A is to be cut.
The grooves 22 are used for the circular saws 31 and 32 of the processing means 3 during processing.
Are running grooves that can travel while appearing upward from the processing table 2. Therefore, the longitudinal direction in which the traveling groove 22 is provided coincides with the direction in which the base 33 on which the circular saws 31 and 32 are installed can travel. The traveling direction of the traveling groove 22 and the base 33 is determined by the
Is set in a direction parallel to the reference plane of the step ruler 11 provided in the above, and the processing by the processing means 3 is performed in parallel with the step rule 11 serving as a reference. Since the holding portion 21 is provided in a long structure along the running groove 22, the holding portion 21 can hold the entire range of the cutting distance of the material. Further, a groove (not shown) is formed inside the holding portion 21 so that both the circular saws 31 and 32 can pass therethrough. When the holding portion 21 is lowered, the inside of the groove is circular sawed. 31, 32
Can be run. The presence of the groove improves dust scattering and improves safety during processing.

Next, processing means 3 for processing during the traveling
Will be described in detail. As shown in FIG. 2, both the cutting circular saw 31 and the finishing circular saw 32 constituting the processing means 3 can be rotated by driving forces transmitted from individual motors 35 and 36, respectively. . The circular saw for cutting 31 and one motor 35 are supported by a common supporting portion 41, and both are provided so as to be able to move up and down at the same time. The circular saw for finishing 32 also has a common support with the other motor 36. It is supported by the part 42 and can be raised at the same time. Such a double circular saw 3
When processing the material A, only one of the motors 1 and 32 can be used alone or both can be simultaneously raised. At that time, the motors 35 and 36 are also raised.

Each of the above-mentioned elevations is operated by an air cylinder, and the elevation is possible within a predetermined range. The method will be described. (Since the two support portions 41 and 42 have basically the same structure, only the side of the finishing circular saw 32 will be described.) FIG.
As shown in (a) and (b), the support portion 42 is
The support 43 is erected on a base 33 provided on the traveling rail 34. The support portion 42 is supported by two sliding contact portions 44 and 45,
The sliding direction is regulated by the sliding contact. An air cylinder 46 is provided at substantially the center of the support column 43, and a rod 48 of the air cylinder 46 is connected to a protruding piece 47 continuous with the support portion 42, and the rod 48 expands and contracts via the protruding piece 47. Support part 4
2 will go up and down. Also, this projecting piece 4
A stopper 49 is arranged above the stopper 7, and the lifting of the support portion 42 is stopped in a state where the protruding piece 47 is in contact with the stopper 49. The stopper 49 is screwed to the shaft portion 50 and can be mounted. That is, the stopper 49 is provided with a female screw, and the shaft 50 is provided with a male screw. By rotating the stopper 49, the stopper 49 can be freely moved in the vertical direction. Therefore, it is possible to adjust how much the circular saw 32 is raised, that is, how much the circular saw 32 should be made to emerge from the surface of the processing table 2. This is because the thickness of the material A to be processed is small. It is effective when it changes.

Of the circular saw for cutting 31 and the circular saw for finishing 32 configured as described above, the circular saw for cutting 31 has its radial center line coincident with the traveling direction, and the circular saw in the traveling direction. The blade at the rear of 31 is provided so as to pass through the same position as the blade at the front. On the other hand, the circular saw 32 for finishing
As shown in FIG. 3A, the center line B in the radial direction is inclined at an angle of α ° with respect to the traveling direction C. As a result, in the finishing circular saw 32, the surface cut by the front cutting edge is cut by the further cutting edge. Such a structure for tilting obliquely is performed by adjusting bolts 51 and 52 as shown in FIG. 3A or 3B. These adjustment bolts 51, 52
Moves one end of a holding table 53 that holds the entire circular saw 32, and the holding table 53 is brought into a state in which it can rotate about a center 54 near the circular saw 32 as a fulcrum. It is becoming.

The finishing circular saw 32 can be translated in a direction perpendicular to the running direction, and has the following structure. First, an air cylinder 55 is provided at a lower portion of the support section 42 that supports the circular saw 32 for finishing via the holding table 53 as described above (see FIG. 3B), and is shown in FIG. As described above, the rod 57 of the air cylinder 55 advances and retreats in a direction perpendicular to the traveling direction of the finishing circular saw 32 (vertical direction in the drawing). Body part 5
6 can also move in the same direction. The tip of a rod 57 which is advanced and retracted by the cylinder 55 is connected to one end of a swing arm 58, and the other end of the swing arm 58 is pivotally supported by the holding table 53. That is, the air cylinder 5
When the operator operates the swing arm 5, the swing arm 58 swings around the shaft support 59 at the other end. In addition, a connecting pin 60 is provided on a part of the swing arm 58, and the connecting pin 60 is fixed to the main body 56 of the circular saw 32.
The swing of the swing arm 58 moves the main body 56 via the connecting pin 60. Therefore,
When the cylinder rod 57 is extended (FIG. 4 (a)), the connecting pin 60 moves in the direction in which the main body 56 retracts (downward in the figure), whereby the finishing circular saw 32 can be retracted. When the cylinder rod 57 is retracted (FIG. 4B), the connecting pin 60 moves in the direction in which the main body 56 advances (upward in the figure), so that the finishing circular saw 32 can be advanced. You can. That is, it can be moved in parallel in a direction perpendicular to the running direction of the circular saw 32 for finishing.

The movement of the main body 56 is restricted in a predetermined direction, as shown in FIG. 3 (b).
This is because the main body 56 is in sliding contact with the holding table 53 while being regulated as shown in FIG. In addition, when the main body 56 advances and retreats on the holding table 53 by the air cylinder as described above, the moving distance of the circular saw 32 can be limited by finely adjusting the positional relationship between them. That is, as shown in FIG. 5, an embedded bolt 61 is provided on an end face of the main body 56, and the bolt 61
Are arranged so as to penetrate a part of the holding base 53, and the double nut 62 is screwed into the tip of the bolt 61. Can be stopped (see FIG. 5A). Further, a bolt 63 protruding toward the main body 56 is screwed to a part of the holding base 53, and the bolt 63 is screwed from both sides of a part of the holding base 53.
By tightening with 4, 65, the retraction of the main body 56 can be restricted (see FIG. 5B). The forward movement of the main body 56 can be changed by a change in the position of the double nut 62, and the retreat can be changed by a change in the amount of protrusion due to the rotation of the bolt 63, thereby changing the allowable movement range.

As shown in FIG. 6, the blade of the finishing circular saw 32 is provided with a cutting edge 72 having a centripetal angle ε on both sides of a blade tip 71. Cutting is performed by cutting from the front end 71. This is because the traveling direction Y of the circular saw 32 is the cutting direction with respect to the rotation direction X of the finishing circular saw 32, and the amount of movement of each blade of the circular saw 32 in the traveling direction Y is small. The cut amount will be made. Therefore, as shown in FIG. 7A, the planned cutting portion 73 of the front blade 70a is located at a position moved in the traveling direction Y with respect to the already cut trace 74.
It is present outside the blade 70a, and is in a normal cutting state in which the movement to the scheduled cutting portion 73 in the traveling direction Y is set as the cutting amount. On one rear blade 70b, the already-cut trace 75 is formed outside the blade tip 71 (FIG. 6) of the blade 70b, and the planned cutting portion 76 is more circular saw 32 than the blade tip 71 (FIG. 6). Is different from a normal cutting that exists at the center side of the cutting edge and is cut from the blade tip 71.

That is, as shown in FIG.
If the travel of the second blade is in the Y direction, the front blade 70a and the rear blade 70b have the same cutting amount L, and the realistic cutting state at that time is the blade tip 71 of the front blade 70a.
However, in the rear blade 70b, the cutting edge 72 cuts in a predetermined width along the centripetal angle ε. Therefore, in the rear blade 70b, the cutting blade edge 72 is widely used, so that the surface can be finished as if it were thinly cut. Further, before the rear blade 70b starts cutting, the front blade 70a has already finished the rough cutting of the planned surface 77, so that the positional relationship between the rough cutting surface 78 and the rear blade 70b is stable. Thus, the finishing allowance H of the rear blade 70b can be made constant. As described above, that the finishing allowance H is constant means that the load acting on the circular saw 32 is constant, stable cutting can be realized, and a suitable finished surface 79 can be obtained. You can do it.

Next, the usage of this embodiment will be described. In the mode of use of the present embodiment, first, the material A is placed on the surface plate 1 and the step ruler 11 and the step guide 1 are placed.
2 is brought into contact with the rear and side of the material A, and the standard of the dimensions to be cut is clearly set. Then, by moving the step ruler 11 in the direction of the processing table 2, the position to be cut is made coincident with the traveling position of the processing means 3 to prepare for cutting. At this time, the finishing circular saw 32 is maintained obliquely with respect to the traveling direction. Therefore,
As shown in FIG. 8A, both the cutting circular saw 31 and the finishing circular saw 32 are rotated and raised, and the base 3 of the processing means 3 is rotated.
By moving 3 along the rail 34, the processing means 3 starts processing. At this time, as shown in FIG. 8B, the processing circular state is as follows. First, the circular saw for cutting 31 cuts the material A, and the rear side thereof is continuously cut.
2 is to finish one of the cut surfaces A1.
At this time, the main body 56 (FIG. 5) of the circular saw 32 is in a retracted state. Then, when the processing means 3 moves to the predetermined position, the cutting of the material A is completed, and the finishing of one of the cut surfaces A1 is also ended. That is, the finishing circular saw 32 can finish one cut surface A1 of the material A.

Subsequently, as shown in FIG. 9A, only the cutting circular saw 31 is lowered so as to be submerged from the surface of the processing table. That is, only the finishing circular saw 32 can be machined. And circular saw 3 for finishing
2 of the circular saw 3 for finishing.
2 is translated in the direction of the cutting plane A2. This allows
The circular saw 32 for finishing comes into contact with the cut surface A2,
Subsequently, by moving the base 33 of the processing means 3 in the reverse direction, as shown in FIG.
The finishing process of No. 2 will be performed.

As described above, both cut surfaces can be finished by one reciprocation of the processing means 3. Therefore, when the processing means 3 makes one reciprocation, the material A is again fed out by the stepping ruler 11 so that continuous processing can be performed.

Here, the finishing process by the finishing circular saw 32 will be described. As shown in FIGS. 8B and 9B, the front blades 70a and 70c in the traveling direction are used.
However, the cut surfaces A1 and A2 to be finished are roughly cut, and the rear blades 70b and 70d perform the finish cutting. At this time, since the front blades 70a and 70c perform rough cutting, the finishing allowance H of the rear blades 70b and 70d can be kept constant. This is because the front blade 70a,
This is because the cut surfaces A1 and A2 after the rough cutting have a fixed positional relationship with respect to the circular saw 32 regardless of whether the cutting 70c is cut deep or shallow. Then, as described above, the predetermined finishing allowance H
Can be uniformly cut by the rear blades 70b and 70d, so that a uniform finishing process can be performed.

Next, details of each part which can be added to the above embodiment will be described. First, the dust collecting means 8 will be described. As shown in FIG. 10, the dust collecting means 8 has a gutter-shaped dust collecting path 81 having a substantially U-shaped cross section with an open upper part, in a direction in which the processing means 3 travels. Along the dust collecting passage 81
Is longer than the range in which the processing means 3 can travel. Further, an endless band-shaped lid member 83 is provided so as to surround the entire dust collection path 81,
An opening 82 that opens in the upper part of the dust collection path 81 can be closed. Therefore, the lid member 83 is provided with a dust inlet 84 penetrating only in a predetermined range in advance, and the dust inlet 84 is driven immediately below the processing means 3 so as to move with the traveling thereof. Power is being transmitted. Therefore, the dust collecting passage 81 is opened only around the processing means 3 where the metal powder is generated, and the metal powder can be sucked through the dust inlet 84. In addition, a vacuum device is connected near both ends of the dust collection path 81 and suction is performed strongly, so that a suction effect due to negative pressure can be generated in the vicinity of the dust inlet 84 to prevent scattering of metal powder. You can do it. Since the opening of the dust collector is limited in this way, it can be easily expected that the negative pressure around the dust inlet 84 is very large, and the duct of the dust collector which has been used conventionally can be expected. Can be used by connecting them to vacuum connection parts 85 and 86 as shown in FIG.

The cover member 83 made of an endless belt-like belt is supported at both ends by pulleys 87 and 88 (FIG. 2) outside the vacuum connection portions 85 and 86. Further, around the cutting circular saw 31 and the finishing circular saw 32, a cover 89 (FIG. 10) for shielding the four sides is provided to prevent scattering of the metal powder caused by the circular saws 31 and 32. At the same time, the metal powder is
And the dust collecting effect can be improved.

Next, the structure of the support legs for supporting the processing table 2 and the protection structure of the power cable, the signal cable and the hose for the air cylinder will be described. Usually, the support legs for supporting the processing table are provided at positions that do not hinder the traveling of the processing means. However, when a heavy material is placed on the processing table 2, the processing table 2 does not bend. Need many supporting legs. And
These many supporting legs are provided so as to be opposed to each other around the traveling position of the processing means 3 in order to achieve a good balance on both sides of the traveling position of the processing means 3. The fact that a large number of support legs are arranged below the processing table 2 means that the processing table 2 is supported by the plurality of support legs within a range in which the processing means 3 travels. As a result, the cable for supplying power cannot move freely below the processing table 2.

Therefore, as shown in FIG. 10, the processing means 3 is more than the supporting leg 91 opposed to the above.
A cable bear 92 capable of protecting a power cable and the like is provided at a position close to. The inside of such a cable bear is hollow, and a power cable, a signal cable, and a hose for an air cylinder are built therein. Therefore, the table support legs 9
Irrespective of the presence of 1, the power, the control signal and the compressed air can be supplied to the place where the processing means moves.

It is needless to say that various embodiments can be adopted without departing from the spirit of the present invention. For example, it is possible to manually operate each of the above-described members, but it is also possible to perform automatic operation by performing numerical control while interlocking the step ruler 11 based on data in which dimensions of the product are input in advance. It is. At this time, the feed amount of the step ruler is controlled by inputting the cutting allowance and the finish allowance into the product dimensions as parameters. The machining can be automated by such numerical control. this is,
This is because both sides of the cut surface can be finished with the material fixed.

Further, in the above-described embodiment, the two cutting surfaces A1 and A2 can be finished by making the processing means 3 make one reciprocation. It is sufficient that the cutting circular saw 31 travels one way. Further, as shown in FIG.
By configuring the blade width of the circular saw for cutting 31 to be smaller than the blade width of the circular saw for finishing 32, the circular saw for cutting 31 is not lowered even at the time of finishing in the return path of the processing means 3. Processing can be continued. This is because the cutting circular saw 31 on the return path passes after the finishing circular saw 32 cuts both cut surfaces A1 and A2 of the cut material A.

In addition, the circular saw for finishing 32 has been described so that the center line B in the radial direction has an inclination angle of α ° which is a predetermined angle with respect to the traveling direction C, but this is determined by the angle. Alternatively, the determination can be made based on the amount of the finishing allowance H (FIG. 7). At this time, the finishing allowance H is the amount by which the rear blade 70b protrudes toward the material side from the front blade 70a, and the finishing circular saw 32 inclined at a predetermined angle α ° has a predetermined finishing allowance H. This is the same regardless of which reference is used. When the finishing state was tested using the above embodiment, the finishing allowance H was about 5/100 mm.

[0028]

As described above, the present invention provides a working table on which a material is placed during working, a working means capable of protruding and retracting from the lower surface of the working table to the upper surface, and a blade of the working means. In a cutting device having a running groove provided so as to be able to run through a working table, the working means is a cutting circular saw and a finishing circular saw running after the cutting circular saw. With the configuration, the direction of the finishing circular saw is such that its radial direction is inclined with respect to the running direction of the processing means, and at least the finishing circular saw is perpendicular to the running direction of the processing means. Since the gist of the present invention is a cutting device characterized by being provided so as to be able to move in parallel, it is possible to process each side of the cut surface generated by cutting by moving the circular saw for finishing in parallel.
In addition, the finishing circular saw mounted obliquely cuts the cut surface to be machined at two places in front and rear with respect to the traveling direction of the machining means, and performs normal cutting in the front and centripetal in the rear. Since cutting along the corner can be performed, a suitable finished surface can be obtained. Since the rear cutting is performed after the normal cutting in the front, the finishing margin can be made constant, and the cutting state at that time can be stabilized. Also, by moving the finishing circular saw in parallel in the direction perpendicular to the running direction, after finishing one of the cut surfaces on the outward path, the other can be finished on the return path, and in one round trip The finishing process can be performed on both surfaces, and the finishing condition on both surfaces can be made uniform. Furthermore, since both cutting and finishing are possible with the material mounted, continuous processing can be performed by sequentially moving the material to the processing table, thereby improving work efficiency. is there.

The cutting circular saw and the finishing circular saw which constitute the processing means are provided on the same traveling base and independently provided so as to be individually liftable and lowerable on this base. After the cutting circular saw cuts the material in the outward path, it is unnecessary in the return path, so that only the cutting circular saw can be lowered,
When finishing is not required, the finishing circular saw can be lowered and only the cutting circular saw can be raised and used.

Further, according to the invention, the angle of the slant of the finishing circular saw and the distance of the parallel movement can be adjusted, so that the state of the blade of the finishing circular saw is worn or the cutting state depending on the kind of the material. And so on. In particular, the slanted angle and parallel movement distance can be adjusted during use because the condition of the finished surface varies greatly due to slight differences, and it is very difficult to fixedly install it at the manufacturing stage of the device. Is convenient.

[Brief description of the drawings]

FIG. 1 is a perspective view of an embodiment.

FIG. 2 is a front view of the embodiment.

3A is a plan view of the processing means, and FIG. 3B is a front view.

FIG. 4 is an explanatory diagram showing parallel movement of a finishing circular saw.

FIG. 5 is an explanatory diagram showing an adjustment structure of a parallel movement amount of a finishing circular saw.

FIG. 6 is an enlarged view of a blade of a circular saw for finishing.

FIG. 7 is an explanatory diagram showing a relationship between a finishing circular saw and a material.

FIG. 8 is an explanatory diagram showing a use mode of the embodiment.

FIG. 9 is an explanatory diagram showing a use mode of the embodiment.

FIG. 10 is an explanatory diagram showing another embodiment.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 surface plate 2 processing table 3 processing means 8 dust collecting device 11 step-out ruler 12 step-out guide 21 holding portion 22 through groove 31 cutting circular saw 32 finishing circular saw 33 base 34 running rail 35, 36 motor 41, 42 support Part 43 Support 44, 45 Sliding part 46 Air cylinder 47 Projecting piece 48 Rod 49, 50 Stopper 51, 52 Adjusting bolt 53 Holder 54 Supporting point 55 Air cylinder 56 Main body 57 Rod 58 Swing arm 59 Shaft support 60 Connection pin 61 , 63 Bolt 62, 64 Double Nut 65 Single Nut 70 Blade 70a, 70c Front Blade 70b, 70d Back Blade 71 Blade Tip 72 Cutting Edge 73, 76 Planned Cutting Part 74, 75 Pre-cut Mark 77 Planned Surface 78 Rough Surface 79 Finished surface 81 Dust collection path 82 Opening 83 Lid 84 Dust entrance 85, 86 Connection port 87, 88 Pulley 89 Cover A Material A1, A2 Cut surface B Center line C Running direction H Finishing allowance L Cutting amount X Rotation direction Y Running direction (cutting direction) α Tilt angle ε Center angle

Claims (3)

(57) [Claims] 1. A processing table on which a material is placed at the time of processing, a processing means capable of protruding and retracting from a lower part of the processing table to an upper surface, and a processing table penetrating the processing table so that a blade of the processing means can run. In a cutting device provided with a running groove provided as described above, the processing means comprises a cutting circular saw and a finishing circular saw that travels after the cutting circular saw. The radial direction is inclined with respect to the traveling direction of the processing means, and at least the finishing circular saw of the processing means is provided so as to be able to translate in a direction perpendicular to the traveling direction. A cutting device characterized by the above-mentioned. 2. The cutting circular saw and the finishing circular saw constituting the processing means are provided on the same traveling base, and are independently provided on the base so that they can be individually raised and lowered. The cutting device according to claim 1. 3. The cutting device according to claim 1, wherein an angle at which the finishing circular saw is inclined and a distance of translation are adjustable.