JP6586008B2 - Cutting device - Google Patents

Description

  The present invention relates to a cutting device.

In the dismantling of the reactor building, it may be necessary to cut a wall in a site that is difficult for people such as the activation section to approach. Conventionally, wire saws have been widely used for cutting devices that cut large portions such as walls. However, the development of a cutting technique that can cut a wall body without manpower is required for cutting a wall body at a site that is difficult for humans to approach.
For example, Patent Document 1 discloses a cutting technique using a wire saw that cuts a wall body in a place where it is difficult for a person to approach.

  In the cutting technique disclosed in Patent Document 1, in the dismantling of the activated hollow cylindrical wall made of reinforced concrete, the circumferential cutting is performed by continuously drilling vertical holes with a core boring device. On the other hand, in the vertical cutting, a core boring device is used to open a distance in the vertical direction and drill two horizontal holes (wire guide holes), and then pass diamond wires (cutting wires) through the two horizontal holes, A loop shape is wound between the two horizontal holes, and the diamond wire is run while applying tension to cut between the two horizontal holes in the vertical direction. Similarly, in the horizontal cutting, a core boring device is used to drill two lateral holes at a distance in the horizontal direction, and to form a diamond wire passing through the two lateral holes in a loop shape, It winds in between, runs while applying tension to the diamond wire, and cuts between the two horizontal holes in the horizontal direction.

JP 2005-83923 A

However, Patent Document 1 requires many manual operations such as making a vertical hole or a horizontal hole in advance with a core boring device before cutting with a wire saw, and further forming a loop through the diamond wire through the horizontal hole. To do. Further, the wall body can be cut only in a straight line connecting between the drilled vertical holes and horizontal holes.

  An object of this invention is to provide the cutting device which can cut | disconnect in arbitrary directions, without drilling a vertical hole and a horizontal hole in a to-be-cut member in view of the said fact.

The cutting device according to the first aspect of the present invention is provided on both sides of the cutting portion of the wire for cutting the wire saw, with the rotation axis directed in a direction orthogonal to the cutting direction of the cutting portion, and the cutting from the rotation shaft. A pair of cutting pulleys on which the cutting wire is hung on the direction side, and a frame body that rotatably supports the cutting pulley, and by rotating the frame body according to the cutting direction Cutting angle changing means for changing the direction of the rotating shaft of the cutting pulley, and moving means for supporting the wire saw and the cutting angle changing means and moving the cutting portion of the cutting wire in the cutting direction. If, have a, the cutting angle changing means, rotatably mounted on the frame, across the cutting pulleys, disposed on the opposite side of the cutting portion of the cutting wire, the cutting wire A pair of first angle changing pulleys that are hung and have a rotation axis orthogonal to the rotation axis of the cutting pulley, and the frame body is provided with the rotation of the first angle changing pulley. and it possesses a first rotating member for rotating about an axis, a.

According to invention of Claim 1, a pair of cutting pulley is provided in the both sides of the cutting part of the wire for cutting of a wire saw. At this time, the cutting pulley has the rotating shaft directed in a direction orthogonal to the cutting direction of the cutting portion, and the cutting wire is hung on the cutting direction side from the rotating shaft. Accordingly, the cutting pulley is configured to push the cutting wire in the cutting direction, and even when the endless cutting wire is run, the cutting wire can be prevented from dropping from the cutting pulley during cutting.
Further, since the cutting pulley is rotatably supported by the frame body, the direction of the rotation axis of the cutting pulley is changed according to the cutting direction by rotating the frame body by the cutting angle changing means. be able to. Moreover, since the moving means supports the wire saw and the cutting angle changing means, the cutting portion can be moved in the cutting direction by the moving means.
Accordingly, it is possible to provide a cutting apparatus that does not require the formation of a vertical hole and a horizontal hole in the member to be cut and can cut the member to be cut without manpower.

Further, the frame member, and cutting the pulley, a first angle-changing pulley cutting wire is multiplied is rotatably supported, the frame is about the rotational axis of the first angle change pulley The first turning member can be turned.
Thereby, the frame can be rotated around the rotation axis of the first angle changing pulley by controlling the first rotating member. As a result, the cutting direction can be changed in a state where the direction of the rotation axis of the cutting pulley is maintained in a direction orthogonal to the cutting direction.

A cutting device according to a second aspect of the present invention is provided on both sides of a cutting portion of a wire saw cutting wire, and a rotating shaft is directed in a direction perpendicular to the cutting direction of the cutting portion, and the cutting is performed from the rotating shaft. A pair of cutting pulleys on which the cutting wire is hung on the side in the direction, and the cutting pulley, provided on the opposite side of the cutting portion of the cutting wire, on both sides of the cutting wire A pair of second angle change guides for guiding the cutting wire, and providing a rotation shaft at a position away from the cutting wire of the cutting portion, and a pair of second angles parallel to the traveling direction of the cutting wire. A pulley, a first frame that rotatably supports the cutting pulley, and a second angle changing pulley that rotatably supports the cutting portion more than the support portion of the second angle changing pulley. A second frame that pivotally connects the first frame, and a second frame that is pivotally connected to the second frame, and the first frame is centered around the connection. The cutting section of the wire for cutting is supported by supporting a second rotating member to be rotated, the wire saw, a cutting angle changing means provided with the second angle changing pulley and the second rotating member. Moving means for moving in the cutting direction.

According to invention of Claim 2 , a pair of cutting pulley is provided in the both sides of the cutting part of the wire for cutting of a wire saw. At this time, the cutting pulley has the rotating shaft directed in a direction orthogonal to the cutting direction of the cutting portion, and the cutting wire is hung on the cutting direction side from the rotating shaft. Accordingly, the cutting pulley is configured to push the cutting wire in the cutting direction, and even when the endless cutting wire is run, the cutting wire can be prevented from dropping from the cutting pulley during cutting.
Further, in a state where the cutting pulley is rotatably supported by the first frame body, the first frame body is rotatably connected to the second frame body around the connecting portion. The second frame body has a second angle changing pulley for guiding the cutting wire rotatably supported by a rotary shaft provided at a position away from the cutting wire of the cutting portion, and the connecting portion is a second one. Since it is provided closer to the cutting pulley than the support portion of the angle changing pulley, the direction of the rotation axis of the cutting pulley is changed to the cutting direction by rotating the first frame around the connecting portion. It can change in the state maintained in the orthogonal direction.
Moreover, since the 2nd rotation member which rotates a 1st frame body is provided in the 2nd frame body, a 1st frame body is made around a connection part by controlling a 2nd rotation member. It can be rotated.

A third aspect of the present invention is the cutting apparatus according to the first or second aspect , wherein the moving means supports the wire saw and the cutting angle changing means and is movable in the vertical direction. And a second base that supports the first base and is movable in the horizontal direction.

  Thereby, the cutting part of the wire for a cutting | disconnection can be moved to arbitrary cutting directions by controlling the moving direction of a cutting angle change means, a 1st base, and a 2nd base.

Invention according to claim 4, in the cutting apparatus according to claim 3, wherein the second base plate is supported by the third base plate, which is movable in the horizontal direction, the said second base plate first Between the three bases, horizontal direction rotating means for rotating the second base in the horizontal direction while supporting the first base is provided.

According to invention of Claim 4 , since the horizontal direction rotation means is provided between the 2nd base and the 3rd base, the driving | running | working direction of the cutting part of the wire for cutting is made into the 3rd base. It is possible to incline independently of the moving direction. Thereby, a to-be-cut member can be cut | disconnected as an inclined surface. Further, the first base can be moved in the vertical direction and the horizontal direction while the cutting portion of the cutting wire is inclined.
As a result, cutting can be performed with a high degree of freedom, such as efficiently avoiding obstacles.

  Since this invention is set as the said structure, it can provide the cutting device which can cut | disconnect in arbitrary directions, without previously making a vertical hole and a horizontal hole in a to-be-cut member.

It is a perspective view showing the basic composition of the cutting device concerning a 1st embodiment of the present invention. (A) is a perspective view which shows the basic composition of the wire saw used for the cutting device concerning a 1st embodiment of the present invention, and (B) is the X1-X1 line view figure. It is a perspective view which shows the basic composition of the cutting angle adjustment means used for the cutting device concerning a 1st embodiment of the present invention. (A), (B) is a perspective view which shows the cutting procedure in the cutting device which concerns on 1st Embodiment of this invention. (A), (B) is a perspective view which shows the cutting procedure in the cutting device which concerns on 1st Embodiment of this invention. (A), (B) is a perspective view which shows the cutting procedure in the cutting device which concerns on 1st Embodiment of this invention. (A), (B) is a perspective view which shows the cutting procedure in the cutting device which concerns on 1st Embodiment of this invention. (A), (B) is a perspective view which shows the cutting procedure in the cutting device which concerns on 1st Embodiment of this invention. (A) is a perspective view which shows the basic composition of the wire saw used for the cutting device which concerns on 2nd Embodiment of this invention, (B) is a block diagram when a cutting direction is set to (alpha). (A) is a block diagram when the cutting direction is 90 ° in the cutting device according to the second embodiment of the present invention, and (B) is a block diagram when the cutting direction is -90 °. . It is a perspective view which shows the basic composition of the cutting angle adjustment means used for the cutting device which concerns on 3rd Embodiment of this invention. (A) is a perspective view which shows the basic composition of the cutting device which concerns on 4th Embodiment of this invention, (B) is a fragmentary sectional view which shows the horizontal direction rotation means. It is a perspective view which shows the cutting result which cut | disconnected the to-be-cut member with the cutting device which concerns on 4th Embodiment of this invention. (A) is a perspective view which shows the basic composition of the cutting device which concerns on 5th Embodiment of this invention, (B) is a perspective view which shows a cutting state.

(First embodiment)
The cutting device 10 according to the first embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a perspective view showing the overall configuration of the cutting device 10, FIG. 2A is a perspective view showing the basic configuration of the wire saw 12, and FIG. 1B is a view taken along line X1-X1 thereof. . FIG. 3 is a perspective view of the cutting angle changing means, and FIGS. 4A to 8B are all perspective views showing a cutting procedure. In each drawing, the vertical direction of the cutting device 10 is the Z-axis direction, and the traveling direction of the diamond wire 14 in the cutting portion 16 is the X-axis direction.

As shown in FIG. 1, the cutting device 10 is disposed below the lower end surface of a member to be cut (cutting target) 28 such as a concrete wall, and cuts the member 28 to be cut upward from the lower surface.
The member 28 to be cut is a wall body having a space in which the cutting device 10 enters and having a width (wall thickness) in the X-axis direction of W1. The member 28 to be cut is a part of a structure that continues in the Z-axis positive direction and the Y-axis direction, and is not supported by the cutting device 10.
In addition, although the to-be-cut member 28 is illustrated in the shape of a rectangular parallelepiped for convenience, the shape is not limited to this and may be a shape that changes three-dimensionally.

The cutting device 10 includes a wire saw 12 that cuts the member 28 to be cut.
The wire saw 12 has a cutting portion 16 having a width W2 that is wider than the width W1 in the X-axis direction of the member 28 to be cut, and moves the cutting portion 16 in the cutting direction to cut the member 28 to be cut. .

As shown in FIGS. 2A and 2B, the wire saw 12 has an endless diamond wire (cutting wire) 14, and the cutting portion 16 is moved in the cutting direction while the diamond wire 14 is running. Then, the member 28 to be cut is cut.
Here, the diamond wire 14 is a bead (cutting material) obtained by mixing and sintering diamond abrasive grains for cutting and bronze or tungsten on a wire rope. It is the structure which combined the wire.

  The diamond wire 14 is folded by a plurality of pulleys such as a cutting pulley 20 and an auxiliary cutting pulley 21 and is stored in frames 24 and 30 so as to be able to go around. Further, a cutting portion 16 is formed on a part of the wire saw 12 so that the diamond wire 14 travels linearly. In the cutting part 16, the diamond wire 14 is configured to travel in the X-axis direction, and the cutting direction is the direction indicated by the arrow 42 (Z-axis direction in FIG. 2A).

  A pair of cutting pulleys 20 are provided on both sides of the cutting portion 16 of the diamond wire 14. The wire saw 12 is a push-cut and pull-out method, and the pair of cutting pulleys 20 have the rotating shaft 26 oriented in a direction (Y-axis direction) orthogonal to the cutting direction indicated by an arrow 42. The diamond wire 14 is hung on the cutting pulley 20 on the cutting direction side (push cutting direction side) from the rotating shaft 26.

A pair of auxiliary cutting pulleys 21 are provided on the cutting direction side of the cutting pulley 20 with the diamond wire 14 interposed therebetween. The auxiliary cutting pulley 21 is provided inside the cutting portion 16 with respect to the cutting pulley 20, and the direction of the rotating shaft 27 of the auxiliary cutting pulley 21 is the same as the direction of the rotating shaft 26 of the cutting pulley 20. It is considered to be a direction.
Thereby, at the time of push-off, the cutting pulley 20 pushes the diamond wire 14 in the cutting direction (push-cut direction side), and the auxiliary pulley 21 for cutting presses the diamond wire 14 against the cutting pulley 20. Disengagement of the diamond wire 14 from the cutting pulley 20 is suppressed. Further, at the time of cutting, the cutting auxiliary pulley 21 pushes the diamond wire 14 in the cutting direction (drawing direction side), and the cutting pulley 20 presses the diamond wire 14 against the cutting auxiliary pulley 21 at the time of cutting. Is prevented from coming off from the auxiliary pulley 21 for cutting.

  A pair of angle changing pulleys (first angle changing pulleys) 22 are provided on the opposite side of the cutting portion 16 with the cutting pulley 20 in between. The angle changing pulley 22 makes the direction of the rotating shaft 32 coincide with the traveling direction of the diamond wire 14 of the cutting portion 16. That is, the direction of the rotation shaft 32 of the angle changing pulley 22 (X-axis direction in FIG. 2A) is the direction of the rotation shaft 26 of the cutting pulley 20 and the direction of the rotation shaft 27 of the auxiliary cutting pulley 21. Orthogonal.

  Further, the rotation shaft 32 of the angle changing pulley 22 is made to coincide with the rotation center when the cutting direction of the cutting portion 16 is changed. Thereby, by rotating the wire saw 12 around the rotation shaft 32 of the angle changing pulley 22, the cutting direction indicated by the arrow 42, the direction of the rotating shaft 26 of the cutting pulley 20, and the auxiliary cutting pulley 21. The cutting direction of the cutting part 16 can be changed while maintaining the relationship with the direction of the rotating shaft 27 constant.

  The wire saw 12 has a driving pulley 19 and runs the diamond wire 14 in a substantially rectangular shape on the same plane to secure a straight portion of the cutting portion 16. A pulley for changing the direction is used at each of the four corners of the diamond wire 14 that travels in a rectangular shape. Both ends of the cutting part 16 have the above-described configuration, and auxiliary pulleys 23 are respectively provided at both ends of the opposite side 17 that travels substantially parallel to the cutting part 16.

A plurality of pulleys such as a driving pulley 19 and a tension adjusting pulley 25 are disposed outside the diamond wire 14 that travels in a rectangular shape.
Further, as shown in FIG. 2B, in the wire saw 12, the cutting portion 16 is bent at an angle of 45 ° at the position of the angle changing pulley 22. Thereby, the cutting direction is the Z-axis direction indicated by the arrow 42.

As shown in FIG. 3, the wire saw 12 is provided with frames (frame bodies) 24 and 30 surrounding the diamond wire 14.
A pair of frames 30 are provided between the cutting pulley 20 and the auxiliary pulley 23. A frame 46 is provided between the auxiliary pulleys 23. Both end portions of the frame 46 are joined to the end portion of the frame 30 on the auxiliary pulley 23 side (the side opposite to the cutting portion 16).

A cutting angle changing means 18 is provided on the auxiliary pulley 23 side of the frame 30. The cutting angle changing means 18 has a motor (first rotating member) 48 capable of forward and reverse rotation, and a pinion gear (first rotating member) 66 is attached to the rotating shaft of the motor 48.
The pinion gear 66 meshes with the arcuate rack gear 54. The rack gear 54 is provided on the upper surface of an arc member 50 described later. The arc member 50 is a part of a circle around the rotation shaft 32.

  A slide rail 53 is provided on the upper surface of the arc member 50 in parallel with the rack gear 54. The slide rail 53 is slidably joined to a slide portion 61 provided at the end of the frame 30 on the auxiliary pulley 23 side. Thereby, even if the motor 48 is rotated, the engagement of the pinion gear 66 and the rack gear 54 is ensured, and the frame 30 can be moved stably.

  Accordingly, the lower end portion of the frame 30 can be moved along the arc-shaped rack gear 54 by rotating the motor 48. The upper end portion of the frame 30 is configured to rotate around the rotation shaft 32, and the cutting direction of the cutting portion 16 can be changed around the rotation shaft 32 by rotating the motor 48.

  The wire saw 12 and the cutting angle changing means 18 are movable in the vertical direction (Z-axis direction indicated by an arrow 42) while being supported by a vertical movement base (first base, movement means) 34, and are moved vertically. The pedestal 34 is supported by a horizontal movement pedestal (second base, moving means) 36 so as to be movable in the horizontal direction (Y-axis direction indicated by an arrow 44).

The vertical movement base 34 includes a pair of arc-shaped arc members 50 opened upward.
The arc member 50 is provided with a predetermined width W2 in the X-axis direction. The width W2 of the vertical movement base 34 is equal to the width W2 of the pair of frames 30 and is larger than the width W1 of the member to be cut 28 (width W2> width W1).
The pair of arc members 50 are connected by a plurality of connecting members 52 disposed along the arc portion of the arc member 50 while maintaining the width W2.

  The arc member 50 forms a part of a circle around the rotation shaft 32 of the angle changing pulley 22. On the upper surface of the arc member 50, a rack gear 54 and a slide rail 53 are attached in parallel along the arc member 50 in an arc shape. Note that the shape and number of teeth of the rack gear may be determined from the configuration of the member 28 to be cut and the wire saw 12.

The vertical movement pedestals 34 are cylinders 38 provided at the four corners, and are movable in the vertical direction (Z-axis direction) indicated by an arrow 42.
The vertical movement pedestal 34 is supported by the horizontal movement pedestal 36 while being supported by the cylinder 38. The horizontal movement pedestal 36 is placed on the upper surface of the pedestal (supporting member) 40 and is slidable in the Y-axis direction indicated by an arrow 44 (see FIG. 1).

Thereby, the cutting part 16 can be moved in an arbitrary cutting direction by controlling the moving direction of the cutting angle changing means 18, the vertical moving pedestal 34 and the horizontal moving pedestal 36 without the need for drilling vertical holes and horizontal holes. Can be moved.
By controlling these with a control unit (not shown), the member to be cut 28 can be cut with few steps without manpower, and the cutting process of the cutting apparatus 10 can be automated.

  As described above, the cutting device 10 is provided with a pair of cutting pulleys 20 on both sides of the cutting portion 16 of the diamond wire 14 of the wire saw 12. The pulley 20 for cutting has the rotating shaft 26 directed in a direction orthogonal to the cutting direction indicated by the arrow 42 of the cutting portion 16, and the diamond wire 14 is hung on the cutting direction side from the rotating shaft 26.

In addition, it has a frame 30 that rotatably supports the cutting pulley 20, and rotates the frame 30 around the rotation shaft 32, so that the rotation shaft 26 of the cutting pulley 20 is rotated according to the cutting direction indicated by the arrow 42. Change direction.
Moreover, it has the vertical movement base 34 and the horizontal movement base 36, supports the wire saw 12 and the cutting angle change means 18, and moves the cutting part 16 of the diamond wire 14 to a cutting direction.

  By adopting this configuration, the pair of cutting pulleys 20 are configured to push the diamond wire 14 in the cutting direction (push-off method), and even when the endless diamond wire 14 is run, Dropping of the diamond wire 14 can be suppressed. In addition, even when the pair of cutting auxiliary pulleys 21 pushes the diamond wire 14 in the cutting direction (drawing method), the diamond wire 14 can be prevented from dropping from the cutting auxiliary pulley 21 during cutting.

  Further, since the cutting pulley 20 is rotatably supported by the frame 30, the cutting angle changing means 18 such as the motor 48 and the pinion gear 66 rotates the frame 30 in the cutting direction indicated by the arrow 42. Accordingly, the direction of the rotating shaft 26 of the cutting pulley 20 can be changed.

In addition, since the moving means such as the vertical moving base 34 and the horizontal moving base 36 support the wire saw 12 and the cutting angle changing means 18, the cutting unit 16 is moved in the cutting direction by moving the moving means. be able to.
Thereby, the cutting device 10 which can cut | disconnect the to-be-cut member 28 can be provided, without requiring the drilling of a vertical hole and a horizontal hole.

Next, a cutting | disconnection procedure is demonstrated using FIG. 4 (A)-8 (B).
First, a case where a rectangular parallelepiped block is cut out to a predetermined size from the bottom surface of the wall-shaped member 28 will be described.

As shown in FIG. 4A, the cutting device 10 is first disposed below the bottom surface of the wall-shaped member 28 to be cut. At this time, the vertical movement pedestal 34 is lowered to the lowest position as indicated by an arrow 42, and the axis S of the frame 30 is directed in the vertical direction. Further, the cutting portion 16 of the diamond wire 14 is adjusted as indicated by an arrow 44 and set at the cutting start position P1.
Note that the cutting sequence is premised on push-cutting, and a procedure of cutting from the target point P4 to the target point P3 after cutting from the cutting start position P1 to the target point P2, and subsequently from the target point P2 to the target point P3 is desirable. Hereinafter, it demonstrates along this procedure.

Next, as shown in FIG. 4B, the section between the cutting start position P1 and the target point P2 is cut upward in the vertical direction (Z-axis direction). At this time, the axis S of the frame 30 is inclined by −45 degrees with respect to the vertical axis G, and the cutting direction is directed upward in the Z-axis direction.
In this state, the diamond wire 14 is run and the cylinder 38 is extended by the height Z1 as indicated by the arrow 42. Thereby, between the cutting start position P1 of the to-be-cut member 28 and the target point P2 can be cut | disconnected to a Z-axis direction.

  Next, as shown in FIG. 5A, after cutting to the target point P2, the cutting direction is changed to the horizontal direction and cutting is performed from the target point P2 to the target point P3. For this reason, traveling of the diamond wire 14 is temporarily stopped.

  Next, as shown in FIG. 5B, the cutting angle changing means 18 is operated with the upper portion of the frame 30 maintained at the position of the rotation shaft 32, and the lower end portion of the frame 30 is moved along the arc member 50. To rotate. At this time, the frame 30 moves the angle with the vertical axis G to a position of 45 °. Thereby, the cutting direction of the cutting part 16 of the diamond wire 14 can be directed to the target point P3, and preparation for cutting in the horizontal direction can be made.

Next, as shown in FIG. 6A, the diamond wire 14 is caused to travel, cut in the direction indicated by the arrow 44 (horizontal direction) by the distance y1, and after reaching the target point P3, the traveling is stopped.
Subsequently, the cutting portion 16 of the diamond wire 14 is moved to the target point P4. For this reason, the cutting part 16 of the diamond wire 14 is temporarily returned to the cutting start position P1 from the target point P3 to the target point P2 and from the target point P2 to the cutting start position P1.

  Next, as shown in FIG. 6B, the horizontal movement base 36 is moved from the cutting start position P1 to the target point P4 in the direction indicated by the arrow 44, and the cutting portion 16 of the diamond wire 14 is moved to the target point P4. set. At this time, the vertical movement pedestal 34 is lowered to the lowest position in the direction indicated by the arrow 43, and the axis S of the frame 30 is inclined by −45 ° with respect to the vertical axis G.

Next, as shown in FIG. 7A, the diamond wire 14 is caused to travel, the vertical movement base 34 is moved by the distance z1 in the direction indicated by the arrow 43, and is cut to the target point P3.
At this time, the vertical movement base 34 is raised and the horizontal movement base 36 is maintained at a fixed position. Thereby, the wire saw 12 can cut out three directions excluding the lower surface of the member 28 to be cut.

As a result, as shown in FIG. 7B, the block 58 with dots can be separated from the member 28 to be cut. The separated block 58 is received by the receiving portion 60 provided on the vertical movement base 34 and then moved to the carry-out position.
By repeating the above procedure, the block 58 can be sequentially separated from the member to be cut 28 and carried out.

Note that the cutting procedure is not limited to the above cutting procedure, and may be a different procedure.
For example, after cutting upward from the cutting start position P1 toward the target point P2, returning to the cutting start position P1, moving the cutting unit 16 to the target point P4, and cutting upward again from the target point P4 to the target point P3 Then, the target point P3 may be cut in the horizontal direction from the target point P2.
Thereby, similarly, the block 58 can be cut off from the member to be cut 28.
In addition, if the push-cut and the pull-off are used together, the block 58 can be cut from the member to be cut 28 as follows. That is, the cutting is performed from the cutting start position P1 to the target points P2 and P3, and then from the target point P3 to the target point P4. Thereby, the block 58 can be separated from the member 28 to be cut.

  Next, a procedure for cutting out a triangular prism block having one side M from the wall-shaped member 28 will be described.

As shown in FIG. 8A, the cutting device 10 is disposed below the member 28 to be cut, and the cutting portion 16 of the diamond wire 14 is set at the cutting start position P1. At this time, the height of the cutting part 16 of the cutting device 10 is set to the cutting start position P1 of the member to be cut 28 from below the member to be cut 28 in a state where it is lowered to the lowest position as indicated by the arrow 43. .
The cutting sequence is based on the assumption that push cutting is performed, and after cutting from the cutting start position P1 to the target point P2, then cutting from the target point P2 to the target point P3, returning to the target point P2, and after cutting from the target point P2 to the target point P4 A procedure for cutting from the target point P4 to the target point P3 is desirable. Hereinafter, it demonstrates along this procedure.

First, in a state where the axis S of the frame 30 is inclined by −45 ° with respect to the vertical axis G, the cylinder 38 is raised to cut between the cutting start position P1 and the target point P2.
Subsequently, the cutting angle changing means 18 moves the axis S of the frame 30 to a state tilted by −15 ° with respect to the vertical axis G, and simultaneously moves the vertical movement base 34 and the horizontal movement base 36 so as to move from the target point P2. The target point P3 is cut obliquely by the distance M in the direction of the arrow S1.

Subsequently, the travel of the diamond wire 14 is once stopped, and the diamond wire 14 of the cutting portion 16 is returned to the target point P2.
Thereafter, the cutting angle changing means 18 tilts the axis S of the frame 30 by 45 ° with respect to the vertical axis G, moves the horizontal movement base 36, and moves the diamond wire 14 of the cutting portion 16 in the direction of arrow S2, Cut a distance M from the point P2 to the target point P4.

  Subsequently, the cutting angle changing means 18 tilts the frame 30 by −75 ° with respect to the vertical axis G, moves the vertical moving base 34 and the horizontal moving base 36 at the same time, and moves the diamond wire 14 of the cutting portion 16 in the direction of the arrow S3. And cut by a distance M from the target point P4 to the target point P3.

Finally, as shown in FIG. 8B, the cutting portion 16 of the diamond wire 14 is returned to the cutting start position P1, and the cut triangular prism block 59 (dot portion) is pushed out in the X-axis direction and placed on the cradle. And carry it out.
As described above, according to the present embodiment, the member to be cut 28 can be cut into an arbitrary shape because it can be cut obliquely.

(Second Embodiment)
A cutting device 70 according to a second embodiment of the present invention will be described with reference to FIGS. 9 (A) to 10 (B). FIG. 9A is a perspective view showing a basic configuration of the cutting device 70, and FIGS. 9B to 10B are perspective views showing a state in which the cutting direction of the cutting device 70 is changed. is there.
The cutting device 70 is different from the first embodiment in that the frame that supports the cutting pulley 20 is divided into two frame members and one frame member is rotatably connected. The difference will be mainly described.

  As shown in FIG. 9A, the cutting device 70 has a wire saw 72, and a pair of cutting pulleys 20 are provided on both sides of the cutting portion 16 of the diamond wire 14 of the wire saw 72. The pulley 20 for cutting has the rotating shaft 26 directed in a direction orthogonal to the cutting direction indicated by the arrow 42, and the diamond wire 14 is hung on the side of the cutting direction indicated by the arrow 42 from the rotating shaft 26.

  A pair of angle changing pulleys 76 is provided on the opposite side of the cutting portion 16 of the diamond wire 14 across the cutting pulley 20. Two angle changing pulleys 76 are arranged on both sides of the diamond wire 14 with the diamond wire 14 interposed therebetween. The rotation shaft 77 of the angle changing pulley 76 is directed in the traveling direction of the diamond wire 14 of the cutting portion 16.

The cutting pulley 20 and the cutting auxiliary pulley 21 are rotatably supported by a rotating frame (first frame) 74, and the angle changing pulley 76 is fixed to a fixed frame (second frame) 75. It is supported rotatably.
The fixed frame 75 is provided between the angle changing pulley 76 and the auxiliary pulley 23, and a support portion 87 that supports the angle changing pulley 76 and a rotating frame are provided at an end of the fixed frame 75 on the cutting portion 16 side. A connecting portion 88 connected to 74 is provided.

Here, the connecting portion 88 is provided closer to the cutting pulley 20 than the support portion 87 (the end portion side of the fixed frame 75). Further, the rotation center of the connecting portion 88 coincides with the rotation center 78 of the rotation frame 74.
As a result, the angle changing pulley 76 is rotatably supported by the fixed frame 75, and the fixed frame 75 and the rotating frame 74 are rotatably connected.

  The fixed frame 75 is provided with cutting angle changing means 116. The cutting angle changing means 116 has a motor (second rotating member) 102 capable of forward and reverse rotation, and a rotating arm (second rotating member) 104 is attached to the rotating shaft of the motor 102. The rotating arm 104 is configured to sandwich the side surface of the rotating frame 74 from both sides while being attached to the motor 102. Thereby, by rotating the rotation arm 104, a rotational force around the connecting portion 88 in the direction indicated by the arrow 45 can be applied to the rotation frame 74.

The motor 102 is fixed to the fixed frame 75 by a fixing bracket 114, and the rotating arm 104 can be rotated while being fixed to the fixed frame 75.
Thereby, the rotation frame 74 can be rotated around the connecting portion 88 in the rotation direction of the motor 102.

  In the present embodiment, as shown in FIG. 9A, the cutting direction indicated by the arrow 42 is upward in the vertical direction in a state where the rotating frame 74 is directed in the vertical direction. Thereby, the member 28 to be cut can be cut from the bottom to the top by moving the wire saw 72 upward in the vertical direction.

Also, as shown in FIG. 9B, the cutting direction indicated by the arrow 42 is changed to the direction of the angle α with respect to the vertical axis G by rotating the rotating frame 74 by the angle α with respect to the vertical axis G. It can be.
In this case, the vertical movement base 34 and the horizontal movement base 36 are controlled to move the diamond wire 14 of the cutting portion 16 in the direction of the angle α with respect to the vertical axis G (see FIG. 1). .

  As shown in FIG. 10A, when cutting in the direction of the angle +90 degrees (horizontal direction) with respect to the vertical axis G, the rotating frame 74 is rotated to an angle of 90 degrees with respect to the vertical axis G. . In this state, the vertical movement pedestal 34 may be maintained at a fixed position, and the horizontal movement pedestal 36 may be moved in the horizontal direction (cutting direction) (see FIG. 1).

As shown in FIG. 10B, when cutting in the direction of an angle of −90 degrees (horizontal direction) with respect to the vertical axis, the rotating frame 74 is rotated by an angle of 90 degrees with respect to the vertical axis. . In this state, the vertical movement pedestal 34 may be maintained at a fixed position, and the horizontal movement pedestal 36 may be moved in the horizontal direction (cutting direction) (see FIG. 1).
Other configurations and cutting procedures of the member to be cut are the same as those in the first embodiment, and a description thereof will be omitted.

(Third embodiment)
A cutting apparatus 100 according to a third embodiment of the present invention will be described with reference to FIG.
FIG. 11 is a perspective view of the cutting device 100.
The cutting apparatus 100 is different from the first embodiment in the configuration of the cutting angle changing means 68 that moves the frame 30. The difference will be mainly described.

As shown in FIG. 11, the cutting angle changing means 68 for rotating the frame 30 around the rotation shaft 32 of the angle changing pulley 22 is provided on the vertical moving pedestal 34 side of the frame 30.
The cutting angle changing means 68 has a motor (first rotating member) 48 capable of forward and reverse rotation, and a pinion gear (first rotating member) 66 is attached to the motor 48.

  That is, the motor 48 is fixed to the outer side surface of the frame 30 in the X-axis direction, and the rack gear 55 is formed in a fan shape centering on the rotation shaft 32 of the angle changing pulley 22. It is installed in a bent state along. The pinion gear 66 is meshed with the rack gear 55.

  A slide rail 57 is provided on the side surface of the arc member 50 in parallel with the rack gear 54. The slide rail 57 is slidably joined to a slide portion 61 provided at the end of the frame 30 on the auxiliary pulley 23 side. Thereby, even if the motor 48 is rotated, the engagement of the pinion gear 66 and the rack gear 55 is ensured, and the frame 30 can be moved stably.

Thus, by moving the pinion gear 66 along the rack gear 55, the vertical movement base 34 side of the frame 30 can be moved around the rotation shaft 32 of the angle changing pulley 22. As a result, the frame 30 is rotated around the rotation shaft 32, and the cutting direction of the cutting part 16 can be changed.
Other configurations are the same as those of the first embodiment, and a description thereof will be omitted.

(Fourth embodiment)
A cutting device 80 according to a fourth embodiment of the present invention will be described with reference to FIGS. 12A is a perspective view showing a basic configuration of the cutting device 80, and FIG. 12B is a cross-sectional view taken along the line Y1-Y1 of FIG. FIG. 13 is a perspective view showing a cut surface of the member to be cut cut by the cutting device 80.
The cutting device 80 is different from the first embodiment in that the vertical movement base 34 is supported to be rotatable in the horizontal direction. The difference will be mainly described.

As shown in FIGS. 12A and 12B, the cutting device 80 has a horizontal movement base (second base, movement means) 82 and a horizontal movement base (third base, movement means) 84. ing.
The horizontal movement base 82 is supported by the horizontal movement base 84 in a state where the vertical movement base 34 is supported. The horizontal movement base 84 is supported by the base 86 and is movable in the horizontal direction. Further, a horizontal rotation means 64 is provided between the horizontal movement base 82 and the horizontal movement base 84.

  As shown in FIG. 12B, the horizontal rotation means 64 shares the rotation axis 120 with the horizontal movement base 82 and the horizontal movement base 84. A convex shaft portion 62T having a diameter D1 is provided on the upper surface of the horizontal movement base 84. On the other hand, a recessed portion 62D that accommodates the shaft portion 62T and the thrust bearing 108 is provided on the lower surface of the horizontal movement base 82.

  The thrust bearing (horizontal direction rotating means) 108 is, for example, a thrust ball bearing, and includes a pair of washer disks 108A and 108B and a plurality of balls 108C. The pair of washer plates 108A and 108B are formed in a ring shape and are arranged to face each other in the axial direction. Further, of the pair of washer plates 108A and 108B, one washer plate 108A is fixed to the upper surface of the horizontal movement base 84 with the shaft portion 62T inserted therein. Further, the other washer 108B is fixed to the lower surface of the horizontal movement base 82 with the shaft portion 62T inserted therein.

  A pair of raceway grooves 63T and 63D that are opposed to each other are formed on opposing surfaces of the pair of raceways 108A and 108B. The pair of raceway grooves 63T and 63D are formed in an annular shape, and a plurality of balls (balls) 108C are accommodated between the pair of raceway grooves 63T and 63D. The plurality of balls 108C are held in the track grooves 63T and 63D by a holder (not shown). As these balls 108C move along the raceway grooves 63T and 63D, the pair of raceways 108A and 108B can rotate relative to each other about the rotation shaft 120.

  Further, a gap is formed between the lower surface of the horizontal movement base 82 and the upper surface of the horizontal movement base 84 by the thrust bearing 108. Thereby, the horizontal movement base 84 and the horizontal movement base 82 can be rotated relative to each other in the direction indicated by the arrow 118 around the rotation shaft 120.

  In addition, a motor 122 that rotates the horizontal movement base 82 and that can be rotated forward and backward is attached to the horizontal movement base 84. A pinion gear 124 is attached to the motor 122. A rack gear 126 that meshes with the pinion gear 124 is provided on the bottom surface of the horizontal movement pedestal 82 in a circular shape around the rotation shaft 120.

According to this configuration, the vertical movement base 34 is supported by the horizontal movement base 82 while supporting the wire saw 12 and the cutting angle changing means 18, and the horizontal movement base 82 is supported by the horizontal movement base 84. The horizontal movement pedestal 82 can be rotated in a direction indicated by an arrow 118 by a horizontal rotation means 64 provided between the horizontal movement pedestal 82 and the horizontal movement pedestal 84.

Thereby, as shown in FIG. 13, the traveling direction of the cutting part 16 of the diamond wire 14 can be inclined at an arbitrary angle with respect to the X-axis direction. Moreover, the inclination angle can be maintained by the stopper 110 while the cutting portion 16 is inclined, and the vertical movement base 34 can be moved in the vertical direction and the second horizontal direction.
As a result, the member 28 to be cut can be cut by the inclined surface (see the dot portion), and the degree of freedom in cutting can be increased, such as avoiding obstacles efficiently.
Other configurations are the same as those of the first embodiment, and a description thereof will be omitted.

(Fifth embodiment)
A cutting device 90 according to a fifth embodiment of the present invention will be described with reference to FIGS. 14 (A) and 14 (B). 14A is a perspective view showing a basic configuration of the cutting device 90, and FIG. 14B is a perspective view showing a cutting state of the cutting device 90. FIG.
The cutting device 90 rotates the cutting device 80 according to the fourth embodiment so that the vertical direction (the direction of the Z axis) is reversed, and the cut member 90 is moved from above with the vertical direction reversed. The fourth embodiment is different from the fourth embodiment in that it can be cut. The difference will be mainly described.

  As shown in FIG. 14A, the cutting device 90 supports the wire saw 12 and the cutting angle changing means 18, supports the vertical movement base 34 and the vertical movement base 34 that are movable in the vertical direction, and is horizontal. The horizontal movement pedestal 92 that is rotatable in the direction, the horizontal movement pedestal 92 is supported, the horizontal movement pedestal 94 that is movable in the horizontal direction, and the horizontal movement pedestal 94 are supported, and leg portions 98 are provided at the four corners. The pedestal 96 is provided.

  Even if the joints in the vertical direction of the respective constituent members of the cutting device 90 are installed in the state of the cutting device 90 with the vertical direction reversed (turning the vertical direction upside down), problems such as dropping occur. First, it has joined so that each function demonstrated in 4th Embodiment from 1st Embodiment can be exhibited.

As a result, as shown in FIG. 14B, by installing the cutting device 90 upside down, the legs 98 move the vertical movement base 34, the horizontal movement base 92, and the horizontal movement base 94. It becomes the structure which supports it possible. As a result, the upper portion of the member to be cut 112 can be cut out from above the member to be cut 112 whose upper end is open.
The other configuration of the cutting device 90 is basically the same as that of the fourth embodiment, and a description thereof will be omitted.
Note that this embodiment may be applied to the first to third embodiments.

10, 70, 80, 90, 100 Cutting device 12, 72 Wire saw 14 Diamond wire (wire for cutting)
16 Cutting part 18, 68, 116 Cutting angle changing means 20 Cutting pulley 21 Cutting auxiliary pulley 22 Angle changing pulley (first angle changing pulley)
24 frames
26 Rotating shaft of cutting pulley 27 Rotating shaft of auxiliary pulley for cutting 28, 112 Cut member 30 Frame (frame)
32 Rotating shaft of first angle changing pulley 34 Vertical moving base (first base, moving means)
36, 82 Horizontal moving base (second base, moving means)
46 frames
48 motor (first rotating member, cutting angle changing means)
54 Rack gear (cutting angle changing means)
64 Horizontal rotating means 66 Pinion gear (first rotating member, cutting angle changing means)
76 Angle change pulley (second angle change pulley)
77 Rotating shaft of second angle changing pulley 78 Rotation center of connecting part 84 Horizontal moving base (third base, moving means)
87 Supporting part of second angle changing pulley 88 Connecting part 102 Motor (second rotating member, cutting angle changing means)
104 pinion gear (second rotating member, cutting angle changing means)
108 Thrust bearing (horizontal rotation means)

Claims (4)

Provided on both sides of the cutting portion of the wire saw cutting wire, with the rotation axis directed in a direction orthogonal to the cutting direction of the cutting portion, and the cutting wire hung from the rotation shaft to the cutting direction side A pair of cutting pulleys;
A cutting angle changing means provided on a frame that rotatably supports the cutting pulley, and rotating the frame to change the direction of the rotation axis of the cutting pulley according to the cutting direction;
The wire saw and to support the cutting angle changing means, said cutting portion of said cutting wire, have a, a moving means for moving the said cutting direction,
The cutting angle changing means includes
The frame is rotatably provided, is disposed on the opposite side of the cutting portion of the cutting wire with the cutting pulley interposed therebetween, the cutting wire is hung, and the rotation shaft of the cutting pulley is A pair of first angle changing pulleys orthogonal to the rotation axis;
A first rotation member provided on the frame body, the first rotation member rotating the frame body about the rotation axis of the first angle changing pulley;
To have a cutting device. Provided on both sides of the cutting portion of the wire saw cutting wire, with the rotation axis directed in a direction orthogonal to the cutting direction of the cutting portion, and the cutting wire hung from the rotation shaft to the cutting direction side A pair of cutting pulleys;
It is provided on the opposite side of the cutting portion of the cutting wire across the cutting pulley, and is disposed on both sides of the cutting wire, guides the cutting wire, and rotates the rotating shaft of the cutting portion. A pair of second angle changing pulleys provided at a position away from the cutting wire and parallel to the traveling direction of the cutting wire;
A first frame body rotatably supporting the cutting pulley;
The second angle changing pulley is rotatably supported, and the first frame body is rotatably connected by a connecting portion provided closer to the cutting pulley than the supporting portion of the second angle changing pulley. The second frame,
A second rotating member that is provided on the second frame and rotates the first frame about the connecting portion;
A moving means for supporting the wire saw and the cutting angle changing means provided with the second angle changing pulley and the second rotating member and moving the cutting portion of the cutting wire in the cutting direction. When,
Cutting device having. The moving means is
A first base that supports the wire saw and the cutting angle changing means and is movable in the vertical direction;
A second base that supports the first base and is movable in a horizontal direction;
The cutting device according to claim 1 or 2 . The second base is supported by a third base that is movable in the horizontal direction,
Between the second base and the third base, there is provided horizontal rotation means for rotating the second base in the horizontal direction while supporting the first base. Item 4. The cutting device according to Item 3 .