JPH08243836A - Cutting device - Google Patents

Abstract

PURPOSE: To shorten a time for cutting off a workpiece without generating a burr in a cut surface, by providing a circular saw moving means of moving a circular saw, during cutting the workpiece fixed to a workpiece holding means, in the periphery of the workpiece. CONSTITUTION: An X direction feed mechanism is actuated, to horizontally move a circular saw 30 from the first spot P1 to the second spot P2 along an X direction. Thereafter based on a command from a mechanism control part, a Y direction feed mechanism and the X direction feed mechanism are actuated while synchronized, to turn the circular saw 30, in a condition that it is advanced into a position a little deeper than a radius of a workpiece W, in the second to fourth spots P2, P3, P4, with a workpiece axial line WL serving as the center. As a result, the circular saw 30, in a cut surface of the workpiece W held by a workpiece holding unit 20, is while advanced into a depth a little larger than the radius dimension toward the center from a peripheral. edge, to completely cut the workpiece W.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting device for accurately cutting a long round material, square material, deformed material or the like.

[0002]

2. Description of the Related Art In a general cutting device, a long work such as a round bar is fixed, and a work is cut at right angles to the work by a circular saw or the like.

[0003]

However, when the work is cut by the conventional cutting device, burrs are generated on the cut surface along the direction in which the circular saw enters, so that it is necessary to perform the deburring step. There is a problem. Further, when the approach angle of the circular saw is deviated, there is also a problem that the perpendicularity of the cutting surface is decreased as it is.

Therefore, a method of cutting the work while rotating it about its axis has been devised. According to this method, the circular saw always enters from the end edge of the cutting surface toward the center, so that the cutting is performed. There is an advantage that burrs are less likely to occur on the surface. Further, since the work is rotating, there is also an advantage that even if the approach angle of the circular saw deviates to some extent, the perpendicularity of the cutting surface does not easily decrease.

However, in such a cutting device, in order to hold the work while rotating it about its axis, the main spindle and the sub-spindle which hold the work at two positions on both sides of the cutting position are required. This is because unless the work is held at two positions on both sides of the cutting position, the work is broken at the cutting position just before the end of cutting and a large burr is generated. Therefore, such a cutting device is expensive because it requires two spindles. If the main spindle and the sub-spindle are not rotated in synchronization with each other, the work will be broken at the cutting position just before the end of cutting and a large burr will be generated. Furthermore, there is a risk of breaking the circular saw. For this reason,
Since a two-system control unit for controlling the rotation of the two spindles is also required, the configuration of the device becomes complicated. further,
Even if there is a slight deviation in the holding force or the position of the rotation center between the main spindle and the sub spindle, the accuracy of the cut surface is significantly reduced. As described above, the cutting device for rotating the work has a problem that the cutting accuracy does not increase even though the structure is complicated and expensive. In addition, when holding the work by the spindle, only round bar-shaped works can be set, so that there is a problem that the types of works that can be cut are limited.

In view of the above problems, the object of the present invention is to
An object of the present invention is to provide a cutting device that can accurately cut various works without complicating the device and keeping the cost low.

[0007]

In order to solve the above-mentioned problems, the cutting apparatus according to the present invention cuts a work whose work axis is oriented in the Z direction among the X direction, the Y direction and the Z direction which are orthogonal to each other. A work holding means capable of holding a work by holding it on both sides in the Z direction sandwiching a predetermined position, a circular saw for entering the work at a right angle to the work fixed to the work holding means, and cutting the work. It is characterized in that a circular saw rotation driving means for rotating the saw to cut the work on the circular saw and a circular saw moving means for moving the circular saw while cutting the work are provided around the workpiece.

Further, according to the present invention, the long work held by the work holding means is sent by a predetermined dimension toward the cutting area by the circular saw, the cut work is pushed out from the cutting area, and another position of the work is provided. It is preferable to provide a material feeding means capable of cutting.

In the present invention, as a work holding means, a path through which a circular saw being cut turns so that the work can be held at two places with the same force and at the same timing without complicating the structure of the apparatus. And a base having a work passage through which the work passes in the Z direction, and a first side and a second side that respectively receive side surface portions of the work at two positions on both sides of the slit on one side of both sides of the work passage. And the second work pressing portion for pressing the work on the work passage toward the first and second work receiving portions at two positions on both sides of the slit on the other side of the work passage and the work receiving portion. And a work pressing tool including the first and second work pressing tools.
A pressing tool driving mechanism for switching between a pressed state and a state in which this state is released, and a pressing tool driving mechanism, a work pressing tool,
Also, it is preferable to use the one in which the first and second work receiving portions are both configured on the base.

According to the present invention, the circular saw moving means is a circular saw X-axis as the circular saw moving means so that the moving path of the circular saw can be changed according to the size and shape of the work without complicating the structure of the apparatus. X-direction feeding mechanism for linearly moving the saw in the direction, Y-direction feeding mechanism for linearly moving the circular saw in the Y-direction, and movement of the circular saw in the Y-direction by the Y-direction feeding mechanism while circular movement by the X-direction driving mechanism. It is preferable to use one having a feed mechanism control means for moving the saw in the X direction and moving the circular saw around the work.

[0011]

In the cutting apparatus according to the present invention, when a circular saw is inserted from a direction perpendicular to the work fixed to the work holding means to cut the work, the circular saw moving means moves the circular saw around the work. Move with. For this reason, the circular saw always enters from the edge of the cutting surface of the work toward the center, so that burrs do not occur on the cutting surface of the work. Further, the work need only be fixed uniformly on both sides of the cutting position, and it is not necessary to rotate it. Therefore, since the spindle is not required, the accuracy of the cut surface can be improved without complicating the device and keeping the cost low. Moreover, if it is not necessary to rotate the work, it is easy to hold the work of various shapes and to hold the work with equal force on both sides of the cutting position.

[0012]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic configuration diagram of the cutting apparatus of this embodiment when viewed from the upper surface, and FIG. 2 is a schematic configuration diagram of the cutting apparatus when viewed from the side surface. In this example, the directions orthogonal to each other are the X direction, the Y direction, and the Z direction, and the workpiece held with the workpiece axis line oriented in the Z direction is cut at a right angle to the workpiece axis line.

1 and 2, the cutting device 10 of this embodiment has a work holding unit 20 (work holding means) for holding the work W with the work axis WL oriented in the Z direction.
And the work W held by the work holding unit 20.
On the other hand, in the cutting area 35, a circular saw 30 for entering the workpiece at a right angle to the work axis line WL and cutting the work.
And a circular saw rotation drive mechanism 4 including a motor (not shown) for rotating the circular saw 30 to cut the workpiece.
0 and are configured. In addition, the circular saw 30 has teeth formed over the entire outer circumference.

For the work holding unit 20, a material feeding mechanism 50 for feeding an unprocessed long work W from the back side thereof, and a chute for receiving the cut work and delivering it to a predetermined position. 60 are configured. The material feeding mechanism 50 may have various configurations, but in the present example, it is sufficient if the work W can be fed toward the work holding unit 20 by a predetermined size. 20, a work guide 51 extending in the Z direction, a material feeding chuck 52 for gripping the work W on the work guide 51, and a chuck opening / closing mechanism 53 for causing the material feeding chuck 52 to perform an opening / closing operation. A chuck feeding mechanism 54 that reciprocates the material feeding chuck 52 along the Z direction is used.

In this example, the circular saw 3 is used when cutting the work W.
A circular saw turning drive mechanism 70 (circular saw moving means) for turning 0 around the work W is configured. In the circular saw turning drive mechanism 70, first, the first slide block 81 on the machine base 11 is linearly driven to reciprocate in the X direction.
A direction feed mechanism 80 and a Y-direction feed mechanism 90 that linearly reciprocates the second slide block 91 in the Y direction on the first slide block 81 are configured. The second slide block 91 includes a circular saw 30 and a circular saw rotation drive mechanism 40 for rotationally driving the circular saw 30.
Is also installed. Here, the circular saw turning drive mechanism 70 also includes a feed mechanism control unit 75 for the X-direction feed mechanism 80 and the Y-direction feed mechanism 90. The feed mechanism control unit 75 is a NC program stored in advance,
And the X-direction feed mechanism 8 based on the input data
0 and the Y-direction drive mechanism 90 can be independently operated, and are operated in synchronization with the X-direction feed mechanism 80 and the Y-direction drive mechanism 90 to move the circular saw 30 around the work axis line WL by a predetermined amount. It is also possible to turn in the angle range of.

As the individual mechanisms such as the X-direction feed mechanism 80, the Y-direction feed mechanism 90, the feed mechanism control unit 75, and the material feed mechanism 50, those normally used for NC lathes and the like can be used as they are. Because you can
Detailed illustration and description thereof are omitted. Further, as the circular saw rotation drive mechanism 40, the one used in a general cutting device or the like can be used as it is, and therefore detailed illustration and description thereof will be omitted.

FIG. 3 is an external view of the work holding unit, FIG. 4 is a cross sectional view taken along the line AA ', and FIG.
It is a longitudinal cross-sectional view taken along the line B '.

In FIG. 3, the work holding unit 20
Is configured on a box-shaped base 23 formed with a work passage 21 through which the work W can penetrate through the work axis WL in the Z direction and a slit 22 formed along a path along which the circular saw 30 turns. Has been done.

In FIGS. 4 and 5, the work W is formed on the inner surface of the base 23 at two positions on both sides of the work passage 21 on either side of the slit 22 forming position (cutting position of the work W). A first work receiving portion 231 and a second work receiving portion 232 for receiving are formed. These first and second work receiving portions 2
As shown in FIG. 5, reference numerals 31, 232 indicate the work passage 2
It is formed in a groove shape having a square opening cross section and extending in the Z direction so as to surely receive the side surface portion of the work W located inside 1.

On the other hand, on the other side of the work passage 21, a portion facing the first and second work receiving portions 231, 232 is provided with the first work pressing portion 241 and the second work pressing portion 241.
The work pressing tool 24 serving as the work pressing portion 242 is disposed. As can be seen from FIG. 5, these first and second work pressing portions 241 and 242 have a square opening cross section in the Z direction so as to reliably catch the side surface of the work W located in the work passage 21. The groove is formed to extend. The work pressing tool 24 is
With the inner surface of the base 23 as a guide surface, the base 23 can be moved forward and backward in the X direction. In addition, in FIG. 5, the depth position of the slit 22 is indicated by a chain double-dashed line L1.

Inside the base 23, the work pressing tool 24 is pressed against the rear end of the work pressing tool 24 toward the first and second work receiving portions 231, 232, and the work pressing tool 24 is moved to the first and second positions. 2 work receiving part 2
A hydraulic cylinder device 25 (pressing tool drive mechanism) that linearly moves in the direction of being separated from 31, 232 is provided. At the rear end of the base 23, the cylinder device 2
Five ins 256 and outs 257 are provided.
A joint 25 is attached to the output shaft 251 of the cylinder device 25.
2 is screwed and fixed, and this joint 252
Is a hole 24 formed at the rear end of the work pressing tool 24.
It is fixed in 3. Therefore, the output shaft 251 of the cylinder device 25 presses the entire work pressing tool 24 toward the first and second work receiving portions 231 and 232 with a uniform force via the joint 252. The pressing tool drive mechanism for the work pressing tool 24 is not of a type that can positively pull back the work pressing tool 24, and the work W is fixed by loosening the pressing of the work pressing tool 24 against the work W. It is also possible to use a type that cancels. Further, as the work pressing tool 24, if the work W can be pressed toward the first and second work receiving portions 231, 232 while avoiding the circular saw 30,
The first and second work pressing portions 241 and 242 may each be formed of two block pieces or an integral block piece.

In this way, the work holding unit 20 is constructed which fixes the work W and does not interfere with the circular saw 30 which performs the turning operation.

As shown in FIGS. 2 and 3, the work holding unit 20 is along a path along which the flange portion SF (projection portion) fixing the circular saw 30 moves when the circular saw 30 turns. While the template 13 (shown by a chain double-dashed line L4) fixed to the base 23 and the like is provided between and, the limit switch LS is provided at a portion that moves integrally with the circular saw 30, for example, the flange portion SF (protrusion portion). It may be provided. According to this structure, it is possible to detect that the circular saw 30 or its drive mechanism has approached the work holding unit 20 abnormally, and thus it is possible to prevent a collision accident or the like. In particular, the size of the flange portion SF is the circular saw 3
Even if the dimension of 0 changes, it is the same, so the flange part S
When the limit switch LS is provided on F, the circular saw 30
It is not necessary to change the positions of the limit switch LS and the template 13 even when the size of the workpiece W or the size and shape of the work W is changed.

An operation of continuously cutting a long work W into a predetermined size in the cutting device 10 thus constructed will be described.

First, referring to FIGS. 4 and 5, the first and second work pressing portions 24 of the work pressing tool 24 are shown.
The output shaft 251 of the cylinder device 25 is retracted so that the rollers 1, 242 retract to the position indicated by the alternate long and short dash line L2. In this state, the work W can freely move inside the work passage 21.

From this state, the material feeding mechanism 50 shown in FIG.
Works. That is, after the material feeding chuck 52 is closed and grips the work W, the material feeding chuck 52 advances toward the work holding unit 20 (cutting area 35) by a predetermined dimension along the Z direction. As a result, the work W is
The work passage 21 of the work holding unit 20 is advanced by a predetermined size. Then, the material feeding chuck 52 retreats along the Z direction after releasing the work W and returns to the original position. In conjunction with such an operation, the cylinder device 25 is moved so that the first and second work pressing portions 241 and 242 of the work pressing tool 20 shown in FIGS. 4 and 5 advance to the positions shown by the solid line L3. The output shaft 251 expands. As a result, the work W has the first and second work receiving portions 231 and 232 and the first and second work pressing portions 241 and 242 of the work pressing tool 24 on both sides of the planned cutting position by the circular saw 30. It is sandwiched between and fixed.

Until this state is reached, the circular saw 30 is at the origin position. That is, in FIG. 6A, the rotation center axis SL of the circular saw 30 is located at the origin P0. After that, circular saw 3
The position of 0 is represented by the position of the rotation center axis SL of the circular saw 30. That is, that the circular saw SL is located at the origin P0 means that the rotation center axis SL of the circular saw 30 is located at the origin P0.

From this state, first, the circular saw rotation drive mechanism 4
0 is operated and the circular saw 30 starts rotating, and then the Y-direction feed mechanism 90 is operated based on a command from the feed mechanism control unit 75.
Is operated, the circular saw 30 rises from the origin P0 to the first point P1 along the Y direction. In this state, circular saw 30
Starts cutting the work W.

Next, based on a command from the feed mechanism control unit 75, the X-direction feed mechanism 80 operates and the circular saw 30
It horizontally moves from the first point P1 along the X direction to the second point P2. Thereafter, based on a command from the feed mechanism control unit 75, the Y-direction feed mechanism 90 and the X-direction feed mechanism 80 operate in synchronization with each other, and the turning of the circular saw 30 is started. That is, the circular saw 30 reaches the fourth point P4 from the second point P2 through the third point P3. Where the second
All of the fourth points P2, P3, and P4 are located at the same radial distance from the work axis line WL, and the circular saw 30 turns in a state of approaching a position slightly deeper than the radius of the work W. The second to fourth points P2, P3, P4
Is an angle range of about 250 ° about the work axis line WL.

As a result, as shown in the enlarged view of FIG. 6 (B), the circular saw 30 moves toward the center of the cutting surface of the work W from the outer peripheral edge to slightly deeper than the radial dimension of the work W. Completely disconnect.

After the work W has been cut in this manner, as shown in FIG. 6C, the Y-direction feed mechanism 9 is used.
0 operates and the circular saw 30 once rises from the fourth point P4 to the fifth point P5 along the Y direction. In this state,
The circular saw 30 finishes cutting the work W.

Next, the Y-direction feed mechanism 90 and the X-direction feed mechanism 80 operate in synchronization with each other, and the circular saw 30 starts turning. By this turning operation, the circular saw 30 moves to the fifth
Returning from the point P5 to the seventh point P7 through the sixth point P6. Here, the fifth to seventh points P5, P6 and P7 are
Both are located at the same radial distance from the work axis line WL, and the circular saw 30 does not contact the work W. After that, the Y-direction feed mechanism 90 and the X-direction feed mechanism 80
Are operated in synchronization with each other, the circular saw 30 linearly moves diagonally from the seventh point P7, and returns to the origin P0.

In this way, the cutting process of the work W is performed in one step.
After the cycle ends, the circular saw 30 temporarily waits at the origin P0 until the next work in process is completed. Next, after the material feeding chuck 52 shown in FIG. 1 is closed to grip the work W, the material feeding chuck 52 moves the work holding unit 20 along the Z direction.
It advances by a predetermined dimension toward the (cutting area 35).
When such an operation is performed, the work pressing tool 24 shown in FIGS. 4 and 5 is in a state in which the work W is opened by temporarily retracting the first and second work pressing portions 241 and 242 to the positions indicated by the alternate long and two short dashes line. It is in. As a result, the work W advances in the work passage 21 of the work holding unit 20 by a predetermined dimension, and another position of the work W becomes cuttable, and the processed work W is removed from the work passage 21. It is pushed out and falls onto the chute 60. At this time, the processed work W may be automatically supplied to the lathe by a loader device or the like.

Next, the work pressing tool 24 advances the first and second work pressing portions 241 and 242 to the position shown by the solid line L3, and holds the work W. In addition, the material feeding chuck 52 keeps the workpiece W open while Z
It retreats along the direction and returns to its original position.

After that, the cutting device 10 repeats the above-mentioned operation to successively cut the work W into a predetermined size.

In the cutting apparatus 10 of the present example for cutting the work W in this way, the circular saw 30 turns the work saw W while rotating around the work axis WL, so that the circular saw 30
Always enters in the direction from the edge toward the center on the cut surface of the work W. Therefore, since burrs do not occur on the cut surface, it is not necessary to perform the deburring step after cutting the work W. Further, since the circular saw 30 turns, the circular saw 30
Requires only a depth approximately corresponding to the radius of the work W, so that the time required for cutting off the work W can be shortened. Furthermore, the shallow depth of penetration of the circular saw 30 into the work W allows the use of a circular saw 30 having a small diameter. Here, as the circular saw 30 has a smaller diameter, the rigidity is higher and the deflection is less, so that the work W can be cut with high accuracy. Moreover, even if the circular saw 30 enters the work W at an angle deviating from the right angle, the turning of the circular saw 30 results in a cutting surface that is substantially the same as that when the circular saw 30 enters the work W at a right angle. Obtainable.

Furthermore, in this example, since the work W is fixed and the circular saw 30 is rotated, the work W is
It suffices that they are evenly fixed on both sides of the cutting position, and it is not necessary to rotate it. Therefore, since an expensive spindle or the like is not necessary, the accuracy of the cut surface can be improved without complicating the device. Moreover, if it is not necessary to rotate the work W, it is easy to hold the work W with equal force on both sides of the cutting position and to set the holding position with high accuracy. Therefore, according to the present example, the cutting device 10 can cut the work W with high accuracy while being relatively inexpensive. In particular, when the bar material is cut into thin pieces, it is extremely difficult to hold the front end side of the work W in a rotatable state, but if it is held in a fixed state as in this example. Is easy.

Further, when the work W is rotated by using the spindle, the shape of the work W that can be held is limited, and the rotation center position thereof is limited by the rotation center position of the spindle. Therefore, it is difficult to hold the center of rotation of a deformed material having a jewel-shaped cross section depending on its shape, but it is also difficult to hold it. However, in this example, regardless of the cross-sectional shape of the work W, , Easy to hold.

Further, in this example, since the circular saw 30 is moved by using the X-direction feed mechanism 80 and the Y-direction feed mechanism 90, the movement path of the circular saw 30 can be controlled only by controlling the balance of those operations. Can be easily changed to a path corresponding to the cross-sectional shape of the work W or the like. Therefore, in the cutting device 10 of this example, there is no restriction on the cross-sectional shape of the work W,
In addition to round bars, square bars and various shaped materials can be easily cut with high precision.

Further, in this example, as the work holding means, the driving force from a single drive source (cylinder device 25) is directly transmitted to the work pressing tool 25 to hold the work W at two positions on both sides of the cutting position. Since the work holding unit 20 is used, the two positions on both sides of the cutting position can be held with equal force and at the same timing.

[0042]

As described above, the cutting apparatus according to the present invention is characterized in that when cutting a work, the work is fixed while the circular saw is moved around the work. Therefore, according to the present invention, since the circular saw enters in the direction from the edge of the cutting surface of the work toward the center, no burr is generated on the cutting surface. Further, since the circular saw moves around the work, the circular saw only has to enter a depth substantially corresponding to the radius of the work, and therefore the time required for cutoff of the work can be shortened. Furthermore, since the circular saw may have a small depth of penetration into the work, a small-diameter circular saw having high rigidity and less swing can be used accordingly. Moreover, even if the circular saw enters the workpiece at an angle deviating from the right angle, the movement of the circular saw can substantially obtain a cutting surface similar to that when the circular saw enters the workpiece at a right angle. .

Furthermore, since it is not necessary to rotate the work while synchronizing both sides, it is not necessary to use an expensive spindle or the like, and it is easy to hold the work under the same conditions at two positions on both sides of the cutting position. . Further, unlike the case where the work is held by the spindle, the work can be carried out even if it is not a round bar work, and both sides of the work can be surely held even when the work is sliced into thin pieces. Therefore, according to the present invention, it is possible to accurately cut various kinds of works without complicating the device and at a low cost.

When the circular saw is turned by using the X-direction feed mechanism and the Y-direction feed mechanism, the turning path of the circular saw can be adjusted according to the cross-sectional shape of the workpiece by simply controlling the balance of those operations. It is easy to change to a different route.
That is, it is possible to easily change the turning center of the circular saw or move it along the outer peripheral shape of the work according to the cross-sectional shape of the work, so that the profiled material or the like can be cut easily with high accuracy.

Further, as the work holding means, when the power from a single drive source is transmitted as it is to the work pressing tool to hold the work at two positions on both sides of the cutting position, even force is applied at the two positions. And the work can be held at the same timing.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram when a cutting device according to an embodiment of the present invention is viewed from above.

FIG. 2 is a schematic configuration diagram of the cutting device shown in FIG. 1 when viewed from a side surface.

FIG. 3 is an explanatory view schematically showing a work holding unit used in the cutting device shown in FIG.

FIG. 4 is a cross-sectional view taken along the line AA ′ of the work holding unit shown in FIG.

5 is a vertical cross-sectional view taken along line BB ′ of the work holding unit shown in FIG.

FIG. 6A is an explanatory view showing a turning operation of a circular saw when cutting a work in the cutting device shown in FIG. 1;
(B) is an explanatory view showing a state where the circular saw enters the work, and (C) is an explanatory view showing a returning operation of the circular saw after cutting the work in the cutting device shown in FIG. 1.

[Explanation of symbols]

10 ... Cutting device 11 ... Machine base 20 ... Work holding unit (work holding means) 21 ... Work passage 22 ... Slit 23 ... Base 231 ... First work receiving portion 232 ... Second work receiving part 24 ... Work pressing tool 241 ... First work pressing part 242 ... Second work pressing part 25 ... Hydraulic cylinder device (pressing tool drive) 30) Circular saw 35 ... Cutting area 40 ... Circular saw rotation drive mechanism (circular saw rotation drive means) 50 ... Material feeding mechanism 70 ... Circular saw rotation drive mechanism (circular saw movement) Means) 80 ... X-direction feed mechanism 90 ... Y-direction feed mechanism 75 ... Feed operation control unit WL ... Work axis W ... Work

Claims (4)

[Claims] 1. An X direction, a Y direction, and a Z which are orthogonal to each other.
Among the directions, the workpiece holding means is capable of fixing the workpiece by holding the workpiece with the workpiece axis oriented in the Z direction on both sides of the planned cutting position in the Z direction, and entering at a right angle to the workpiece fixed to the workpiece holding means. A circular saw for cutting the work, a circular saw rotation driving means for rotating the circular saw to cut the work by the circular saw, and a circular saw for moving the circular saw around the work while cutting the work. A saw moving means. 2. The apparatus according to claim 1, further comprising feeding a long work held by the work holding means toward a cutting area by the circular saw by a predetermined dimension and pushing out the cut work from the cutting area. , A cutting device having a material feeding means capable of cutting another position of the work. 3. The work holding means according to claim 1 or 2, wherein the work holding means includes a slit corresponding to a path along which the circular saw being cut moves, and a work passage through which the work passes in the Z direction. First and second work receiving portions that respectively receive the side surface portions of the work at two locations on both sides of the slit on one side of the work passage, and two locations on both sides of the slit on the other side of the work passage. And a work pressing tool having first and second work pressing parts for pressing the work on the work path toward the first and second work receiving parts, respectively, and the work pressing tool is the first work pressing tool. And a pressing tool drive mechanism for switching between a state of being pressed toward the second work receiving portion and a state of releasing this state. The sizing tool drive mechanism, the work pressing tool, and the first and second work receiving portions are
A cutting device characterized in that both are formed on the base. 4. The circular saw moving means according to claim 1, wherein the circular saw moving means linearly feeds the circular saw in the X direction, and an X-direction feeding mechanism that linearly feeds the circular saw in the Y direction. While moving the circular saw in the Y direction by the Y-direction feed mechanism to be moved and the Y-direction feed mechanism, the circular saw is also moved in the X-direction by the X-direction drive mechanism,
A cutting device comprising: a feed mechanism control means for moving the circular saw around a work.