JPH08127022A - Plate material cutting device - Google Patents

Abstract

PURPOSE: To shorten the overall cutting time by controlling the position of a plate material cutting head by means of a measurement data stored in a storage means and providing a cutting tool with a cutting control means for cutting a plate material from a cutting start position to a cutting completion position. CONSTITUTION: The position of a plate material cutting head is measured by rotary encorders 46 and 65 as a first and a second measurement means, and cutting line intervals of the plate material for the plate material cutting head having a cutting reference point as reference are input from a cutting position input section 68 and stored in a RAM 92. On the other hand, the cutting distances of respective cutting lines are measured based on the encorder 65, and the measurement data is input from the data input section 68 and stored in the RAM 92. The measurement data is taken out of the RAM 92 by a CPU 90, and the plate material cutting head is moved in compliance with the cutting line intervals and cutting distances, and the cutting operation along the measurement data is carried out by the cutting tool of the head.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plate material cutting device for cutting a plate material such as a stone plate into small pieces with a circular saw or a water jet.

[0002]

2. Description of the Related Art Conventionally, a large-sized stone plate is cut vertically and horizontally with a circular saw to cut out stone plate pieces used for a decorative plate on a wall or floor. It is not only necessary to cut such a stone plate in consideration of only the size, but it is necessary to cut and cut the stone surface so as to include the best portion while avoiding a portion where the stone surface is cracked or clouded. Therefore, an experienced worker checks each stone plate and changes the cutting positions in the longitudinal direction and the lateral direction each time to cut.

As shown in FIG. 15, for example, a conventional cutting device has a pair of frames 100 and a beam 1 suspended between them and movable along the longitudinal direction of the frames 100.
01 and the plate material cutting head 102 movable along the longitudinal direction of the beam 101 constitute a cutting processing section. As a result, the plate material cutting head 102 is movable in the X-axis and Y-axis directions. The stone plate S is placed on a table 103 which can be rotated by an index, and the circular plate 104 of the plate material cutting head 102 cuts the stone plate S by sequence control. The circular saw 104 is mounted on the plate material cutting head 102 and can be moved up and down. Limit switches 105 and 106 are provided on the rear surface of the beam 101 and near both frames 100. The limit switches 105 and 106 are turned on and off by a plate material cutting head 102 that moves the beam 101.

[0004] With this device, for example, a stone plate for cutting four places (P1 to P4) along the longitudinal direction and three places (Q1 to Q3) along the lateral direction of the stone plate S shown in FIG. The cutting procedure will be specifically described.

First, P1 to P1 are equally spaced in the X-axis direction (width direction).
Input the cutting position of P4 with the input key. The circular saw 104 of the plate material cutting head 102 cuts in the Y-axis direction from the Ya side to the Yb side (from the lower side to the upper side in the drawing) at intervals of P1 to P4. The circular saw 104 is located above the plate material cutting head 102 when not in use, and is lowered to a position where a stone plate can be cut during cutting. The plate material cutting head 102 has a limit switch 105 arranged on the Yb side.
When the switch 105 is pressed, the switch returns to the Ya side. Then, the head 102 is Ya
Contact the limit switch 106 on the
When 5 is input, the head 102 stops. That is, in the plate material cutting head 102, the position in contact with the Ya-side limit switch 106 is the cutting start position C1, and the position in contact with the Yb-side limit switch 105 is the cutting end position C2.

When a start switch (not shown) is input, the plate material cutting head 102 first moves to the Ya side P1 cutting start position C1 and then to the cutting end position C2 according to the locus shown by the chain double-dashed line in FIG. The circular saw 104 is the same head 1
When 02 moves to the cutting start position M, it descends and cuts the stone plate S from the Ya side to the Yb side at the P1 position. When the plate material cutting head 102 reaches the Yb side, the circular saw 104 once rises, the head 102 moves in the P2 direction, and returns from the Yb side to the Ya side. And P
In the 2 position, the circular saw 104 is lowered again to a position where the stone plate can be cut, and the stone plate S is again moved from the a side to the b side.
Is cut (Fig. 16). When this cutting operation is repeated up to P4, the cutting of the stone plate S in the lateral direction is completed.

Next, as shown in FIG. 17, the rotary table 90
The cutting positions of Q1 to Q3 are input at equal intervals along the longitudinal direction by rotating once. Then, similar to the above, the circular saw 104 cuts from the Ya side to the Yb side (from the lower side to the upper side in the drawing) in the Y-axis direction. The plate material cutting head 102 moves to the Ya side P1 cutting start position C1 and moves toward the cutting end position C2 as in the longitudinal direction. When the cutting of Q1 to Q3 is completed, as shown in FIG.
A quarry stone plate piece A of the same shape, which is orthogonal to the cutting line of No. 4, can be obtained.

Further, in such a cutting apparatus, a group of two or more kinds of stone plate pieces having different sizes may be cut out from one stone plate. For example, as shown in FIG. 19, 7 places (P11 to P17) along the longitudinal direction and 4 places (Q11 to Q14) along the lateral direction are cut to obtain a stone plate piece group of two types A and B. When cutting out, the stone plate cutting procedure is as follows.

First, P1 is arranged at equal intervals in the X-axis direction (width direction).
The position is input with an input key or the like at a cutting interval of 1 to P17. Then, cutting is started from P11 in order from the Ya side to the Yb side. First, regarding the P11 position, Y
The position abutting against the limit switch 106 on the a side starts cutting from the cutting start position C3 position and ends at the C4 position. (FIG. 20). However, in the next P12, the cutting must be started from the C5 position in order to obtain stone plates of different sizes. Therefore, the operator saw that the circular saw 104 is Ya
The circular saw lowering prevention switch is input so as not to start cutting from the side, and the circular saw 104 is not lowered, and only the plate material cutting head 102 is moved from the Ya side to the Yb side. That is, the positions C3 to C5 are skipped. When it reaches the C5 position, the circular saw lowering prevention switch is released to lower the circular saw 104 to start cutting from the C5 position.

The circular saw 104 has a limit switch 1 on the Yb side.
When the position abutting with 05 reaches the cutting end position C6, based on the input signal of the limit switch 106, the circular saw 104
Rises, the plate cutting head 102 moves in the P14 direction, and returns from the Yb side to the Ya side. Below P1
3, P15 and P17 are the same cutting process as P11, and P14 and P16 are the same cutting process as P12. This completes the cutting of the stone plate S in the longitudinal direction.

Then, as shown in FIG. 21, the rotary table is rotated by 90 degrees, and Q11 to Q11 are equally spaced along the lateral direction.
Enter the cutting position of Q14. And Q11-Q14
In this order, the circular saw 104 cuts and cuts from the Ya side to the Yb side. When the cutting of Q11 to Q14 is completed, two kinds of stone plate pieces A and B as shown in FIG.
Is obtained.

[0012]

However, such a conventional stone material processing apparatus has the following problems. 1) Enter the cutting width P in the longitudinal direction in the X-axis direction and cut in the Y-axis direction (the shorter direction may be the first), then enter the cutting width Q in the short-side direction in the X-axis direction and in the Y-axis direction. Disconnect. That is, it was a batch method in which input and cutting are performed in the longitudinal direction and the lateral direction, respectively. Therefore, the operator has to repeatedly input and cut one stone plate, which is troublesome. Further, even if the cutting operation in the longitudinal direction is completed, if the worker is just doing another work (for example, setting a stone plate on another table) at that time, the work may not be interrupted. . Then, it is not possible to immediately rotate the table and input / cut in the lateral direction. Therefore, the work time may be lost.

2) Regarding movement of the plate material cutting head 102 in the Y-axis direction, basically, the limit switches 105, 1
The beam moving motor is stopped based on turning on / off of 06. Otherwise, the operator must directly operate the cutting end switch or the like to move the head 102 to the next cutting position. The same applies to the stop or start of the cutting operation of the circular saw 104. For example, when cutting a small stone plate from the Ya side to the Yb side, the head 102 advances along the beam 101 until the limit switch 106 on the Yb side is input even after the cutting of the plate is completed, The saw 104 also remains lowered. Only when the limit switch 106 on the Yb side is input, the circular saw 104 moves up and the plate material cutting head 102 moves to the next cutting position.

However, even if the cutting is not actually performed, the plate material cutting head 102 continues to move as the cutting operation is performed until the limit switch 106 is input, resulting in a loss of working time. . However, it is troublesome for the operator to monitor the end of cutting all the time and to operate the cutting end switch etc. with the end of cutting,
The worker is obsessed with this work. However, if the robot automatically moves to the next cutting position as soon as the cutting is completed, the loss of the cutting time will be eliminated, and the total cutting time should be shortened.

3) When cutting out two or more kinds of stone plates, the circular saw 104 must be raised during the cutting, or conversely, the cutting must be skipped to start the cutting. You must operate the disconnection end switch and the circular saw lowering prevention switch with the stick.

The present invention solves all of these deficiencies all at once, and the purpose thereof is to input cutting data first and then automatically cut a plate into small plate pieces. To provide.

[0017]

Means for Solving the Problems In order to solve the above problems, the present inventor has, in the invention of claim 1, first measuring means for measuring a relative position of a plate cutting head with respect to a frame, and plate cutting. Measuring means for measuring the relative position of the working head with respect to the beam, cutting reference point storing means for storing the cutting reference point of the plate cutting head, and the first measuring means for cutting the plate material with the cutting reference point as a reference A first input means for measuring a cutting line interval with respect to the plate material of the head and inputting the measurement data, and a cutting start position and a cutting end position of each cutting line are measured by the second measuring means, and the measured data is input. Second input means, storage means for storing each measurement data input by both input means, and position of the plate cutting head is controlled based on the measurement data stored by the storage means. In addition, the cutting tool of the plate material cutting head includes cutting control means for cutting the plate material from the cutting start position to the cutting end position at each cutting line.

According to the invention of claim 2, in addition to the invention of claim 1, the cutting tool is a saw blade capable of cutting in one direction. Further, in the invention of claim 3, in addition to the invention of claim 2, the table of the plate material cutting device is horizontally rotatable and can be stopped at a plurality of stop positions. The start position and the cutting end position are measured for each stop position, and the measurement data is input by the first and second input means and stored by the storage means, based on the stored measurement data. The cutting control means causes the cutting tool of the plate cutting head to cut the plate at each stop position.

According to a fourth aspect of the invention, in addition to the first to third aspects of the invention, a tilting member for rotating the beam in the outer peripheral direction to tilt the plate cutting head with respect to the horizontal plane is provided. The tilting control means for controlling the driving of the tilting member is provided. Further, in the invention of claim 5, in addition to the inventions of claims 1 to 4, a plurality of tables of the plate cutting device are arranged along the longitudinal direction of the frame,
The measurement data is measured for each plate placed on each table and stored in the first and second storage means.

[0020]

With the above configuration, in the invention of claim 1,
The position of the plate cutting head is measured by the first and second measuring means, the cutting line interval for the plate of the plate cutting head based on the cutting reference point is input by the first input means, and the data is stored. Store by means. On the other hand, the cutting distance of each cutting line is measured based on the second measuring means, the measurement data is input by the second input means, and the data is stored by the storage means. Then, the measurement data is taken out from the storage means, and the plate material cutting head is moved according to the cutting line interval and the cutting distance, and the cutting tool of the head is caused to perform the cutting operation according to the measurement data.

According to the invention of claim 2, in addition to the operation of the invention of claim 1, the plate material is cut only in one direction by a saw blade such as a circular saw or a band saw. According to the invention of claim 3, in addition to the effect of the invention of claim 2, at a certain position of the table, the cutting tool cuts at a desired interval in parallel. It is then rotated horizontally and stopped at another position, again allowing the cutting tool to cut at the desired spacing and in parallel. Then, a small piece of plate material is cut out by a plurality of cutting lines according to the stopped position.

Further, in the invention of claim 4, claims 1 to 3
In addition to the action of the invention described above, the beam is rotated in the outer peripheral direction by the tilt control means, and the plate material cutting head attached to the beam is tilted with respect to the horizontal plane, so that the cutting tool forms a cutting surface inclined to the plate material. Let According to the invention of claim 5, in addition to the operation of the invention of claim 1 or 3, by disposing a plurality of tables along the longitudinal direction of the frame, a plate material is placed on each table and measurement data is input at one time. It becomes possible to perform all of the plate materials at once, if all the measurement data is input first.

[0023]

EXAMPLE An example of the plate material cutting device according to the present invention will be described in detail below with reference to FIGS.
As shown in FIGS. 1 to 4, the plate material cutting device 1 is composed of a pair of frames 2 placed horizontally and at a predetermined interval (about 5 m in this embodiment) and a beam 3 suspended between the frames 2. The skeleton of is formed. Then, a plate material cutting head 4 is mounted on the beam 3 so as to be slidable along the longitudinal direction of the beam 3. In the following description, for convenience of description, the front side is the front side and the left side is the rear side in FIG.

As shown in FIGS. 1 and 2, the stone plate cutting head 4 comprises a column 6, an elevating body 7 mounted on the column 6 and a cutting portion 8. The column 6 has a substantially square cross section and is inserted into and supported by the beam 3.
A first servomotor 10 is arranged on the upper surface of the column 6. A drive gear 11 is attached to the first servomotor 10, and the drive is transmitted via a chain 12 to a driven gear 14 fixed to a pinion shaft 13 inside the column 6. The pinion 15 is coaxial with the driven gear 14.
Is mounted on the upper surface of the beam 3 so as to mesh with a rack 16 formed in the longitudinal direction of the beam 3.

As a result, the drive of the first servomotor 10 is transmitted to the drive gear 11, the chain 12, the driven gear 14, the pinion shaft 13, and the pinion 15 in this order in the rack 16.
Since the pinion 15 meshing with is rotated, the stone plate cutting head 4 can be moved left and right along the longitudinal direction of the beam 3. The drive gear 11, the chain 12, and the driven gear 14 are covered with a protective cover 17.

An elevating body 7 is arranged so as to intersect with the column 6. The elevating body 7 is composed of a ceiling portion 20 formed above the column 6 and a hanging portion 21 that extends downward from both left and right edges of the ceiling portion 20 and that sandwiches the column 6. There is. The cutting portion 8 is supported at the tip of the hanging portion 21. The cutting section 8 includes a circular saw 22, a spindle 23,
It is composed of a spindle cover 24 and the like. A main shaft 23 is inserted into a main shaft cover 24 fixed to the hanging portion 21 of the lifting body 7 and extending left and right. Circular saw 2 at the tip of the same spindle 23
2 is fixed, and the driven pulley 2 is attached to the base end of the main shaft 23.
5 is installed. The upper half of the circular saw 22 is the protective cover 2
Covered by 6. A jet nozzle 27 is provided on the advancing side of the circular saw 22 (on the right side in FIG. 1), and when the stone plate S is cut, water is jetted to the cut portion to reduce friction heat.

A second servomotor 30 is provided on the upper surface of the ceiling portion 20 of the lifting body 7. A drive gear 31 is attached to the second servomotor 30, and the drive is transmitted to a driven gear 33 arranged on the column 6 via a chain 32. A worm wheel 35 is mounted on the tip of the rotary shaft 34 of the driven gear 31, and is meshed with a vertically moving male screw 36 as a worm extending downward. The upper and lower ends of the vertical movement male screw 36 are the lifting body 7.
Is rotatably attached to the ceiling portion 20 of the above, and is engaged with a vertical movement female screw 37 attached to the column 6 near the lower end.

As a result, when the drive from the second servo motor 30 is transmitted to the drive gear 31, the chain 32, the driven gear 33, the rotary shaft 34, and the worm wheel 35 in this order, and the male screw 36 for vertical movement rotates, On the contrary, the vertical movement female screw 37 causes the vertical movement male screw 36 to move up and down. That is, the lifting / lowering body 7 is raised or lowered with respect to the column 6 by the rotation of the vertical movement male screw 36. The drive gear 31, the chain 32, and the driven gear 33 are covered with a protective cover 38.

A three-phase AC motor 4 is provided on the upper surface of the ceiling portion 20 of the lifting body 7 and adjacent to the second servomotor 30.
0 is set. A drive pulley 41 is attached to the three-phase AC motor 40, and the drive is transmitted to the driven pulley 25 via a V belt 42. As a result, the circular saw 22 is adapted to rotate. Incidentally, V
The belt 42 is covered with a protective cover 47.

As shown in FIG. 1, a pair of limit switches 43a and 43b are mounted on the front surface of the column 6,
It is a switch for controlling the drive of the second servo motor 25. Engaging pieces 44a and 44b are arranged adjacent to both limit switches 43a and 43b. Engaging piece 44
a and 44b are fitted to a rod 45 fixed to the lifting body 7 at a predetermined interval from each other, and the upper engaging piece 44a.
Engages with the upper limit switch 43a, and the lower engaging piece 44b engages with the lower limit switch 43b.

As shown in FIG. 2, on the back surface of the column 6, the first
A first rotary encoder 46, which is a measuring unit of the above, is provided. The first rotary encoder 46 measures the position of the stone plate cutting head 4 in the longitudinal direction on the beam 3 based on the rotation speed of the pinion shaft 13. That is, the position in the cutting direction (front-back direction) of the stone plate cutting head 4 is measured.

As shown in FIGS. 3 and 4, the frame 2 is composed of a plurality of columns 48 and a frame main body 49 supported by the columns 48 and having an H-shaped cross section. A rack 50 is formed on the upper surface of the frame body 49 along the longitudinal direction. The beam 3 is composed of a beam main body 51 which is hollow and has a quadrangular cross section, and a pair of holding portions 52 at both ends of the beam main body 51. As shown in FIGS. 3 and 4, a third servomotor 53 is arranged on the side of the front holding portion 52. The drive of the third servomotor 53 is transmitted from the drive gear 54 to the driven gear 56 in the holding portion 52 via the chain 55. The driven gear 56 is meshed with the rack 50, and when the third servomotor 53 is driven as a result, the driven gear 56 in the holding portion 52 rolls on the rack 50 due to the driving force of the third servomotor 53. The whole 3 can move along the longitudinal direction of the frame 2.

The third portion provided in the holding portion 52 on the front side.
The driving force of the servo motor 53 is transmitted from the driven gear 56 via the transmission chain 57 and the transmission gear 58 to the counter shaft 59 arranged in the beam main body 51. Since the drive of the counter shaft 59 is transmitted to the driven gear 56 (not shown) of the holding portion 52 on the rear side, both the front and rear driven gears 56 rotate synchronously.

As shown in FIGS. 3 and 4, both holding portions 52
A tilting air cylinder 60 is disposed on the upper surface of the.
A tip of a boomerang-shaped arm 62 is rotatably attached to a tip of a piston rod 61 of the air cylinder 60. A pin 62a is provided in a protruding manner on the inner surface side of the arm 62 near the bent portion. The base ends of the arms 62 are fixed to both ends of the beam main body 51. Both holding parts 5
The stoppers 63 are provided on the left and right sides of the arm 62 on the upper surface of 2.
Is provided. A stop bolt 64 that can come into contact with the pin 62 a of the arm 62 is attached to each of the stoppers 63.

In the arm 62 shown by the solid line in FIG. 3, the pin 62a is in contact with the stop bolt 64 of the right stopper 63. In this state, the beam body 51 is not tilted. However, the tilting air cylinder 6
When 0 is operated and the piston rod 61 advances, the arm 62 is pushed and rotated counterclockwise in the figure. Then, the beam main body 51 to which the arm 62 is fixed also rotates with this rotation. Then, the pin 62a of the arm 62 comes into contact with the stop bolt 64 of the left stopper 63 and stops. As shown in FIG. 6 (a), the stone plate S is usually cut out at right angles to all sides. However, by tilting the beam body 51, it becomes possible to set the cutting angle to an angle other than a right angle as shown in FIG. Although the angle is set to 75 degrees in this embodiment, the stop bolt 64
Since the protrusion amount of is adjustable, any angle can be selected.

As shown in FIGS. 3 and 4, a second rotary encoder 65 as a measuring means is provided on the inner surface of the holding portion 52 on the front side. The second rotary encoder 65 is in contact with the frame body 49 by a touch roll (not shown) and measures the position of the beam 3 in the longitudinal direction on the frame body 49, that is, the position of the stone plate cutting head 4 in the left-right direction. It is like this. Incidentally, FIG.
In FIG. 3, an operation panel 66 is arranged inside the right frame 3, and an operation portion 67 is formed on the front surface of the panel body.

As shown in FIG. 7, the operation portion 67 is provided with a cutting position data input portion 68 as an input means. The input section 68 is provided with input keys for inputting each cutting position data of the plate material S in the longitudinal direction and the lateral direction.
In FIG. 7, the left side of the input section 68 is an area E for inputting the cutting position data of the plate S in the longitudinal direction. First and second X-axis setting meters 69a for displaying cutting positions in the X-axis direction
69 g and 70 a to 70 g are meters also serving as input keys for inputting the cutting position data in the X-axis direction in FIGS. 9 to 12. Each meter 69a-69g, 70a-7
The numerical value displayed at 0 g is a distance based on the cutting reference points M and N, and is input as cutting position data. A stroke key 72 for changing a numerical value is arranged above and below the respective meters 69a to 69g and 70a to 70g.

Both X-axis setting meters 69a to 69g, 70a
The first cutting start position determination key 73a, the first cutting end position determination key 73b, the second cutting start position determination key 74a, and the second cutting end position that set the Y-axis direction cutting position on the upper part of 70g. An enter key 74b is provided.
Each decision key 73a, 73b, 74a, 74b is adapted to input a cutting start position or a cutting end position in the X-axis direction.

The right side of the input section 68 is an area F for inputting the cutting position data of the plate S in the lateral direction. Third and fourth X-axis setting meters 75a for displaying cutting positions in the X-axis direction
The arrangement of 75g and 76a to 76g is the same as the region in the longitudinal direction. Also, third and fourth cutting start position determination keys 77a, 78a for setting the Y-axis direction cutting position.
And fifth and sixth cutting end position determination keys 77b, 78
The arrangement of b is also the same as the region in the longitudinal direction.

The operation section 67 is provided with a meter (not shown) for displaying the distance from the cutting reference points M, N, various switches (not shown) and the like. A notification lamp 89a and a notification buzzer 89b are provided on the upper surface of the panel body to notify the end of cutting.

As shown in FIGS. 4 and 5, the table 80
The stone plate S is placed on the upper surface of the square table body 81. As shown in FIG. 5, the table body 81
Is supported by a support shaft 82 arranged on the back surface so that the index can be rotated in the horizontal direction. A large diameter pinion 83 is fixed to the support shaft 82. Table body 81
A pair of racks 84 and 85 are provided on both sides of the pinion 83 on the back side of the pinion 83 so as to mesh with the pinion 83. Rotating hydraulic cylinders 86a, 86b, 87 are provided on both ends of both racks 84, 85, respectively.
a and 87b are provided, and both ends of both racks 84 and 85 are fixed to the tips of piston rods 88 of the hydraulic cylinders 86a, 86b, 87a and 87b.

Rotating hydraulic cylinders 86a, 86b, 87a, 87b opposed to each other at both ends of the racks 84, 85, respectively.
In the state (1), when one cylinder is filled with the pressure oil and the piston rod 88 is advanced, the pressure oil is drained from the other cylinder and the piston rod 88 is retracted. In FIG. 5, the rotation hydraulic cylinders 86a and 86b on the right side are located above the rotation hydraulic cylinders 86 on the upper side.
The piston rod 88 of “a” is in the advanced state, and the piston rod 8 of the lower rotating hydraulic cylinder 86 b facing the piston rod 8
8 is a retracted state. On the other hand, in the left rotary hydraulic cylinders 87a and 87b, the piston rod 88 of the upper rotary hydraulic cylinder 87a is in a retracted state, and the piston rod 88 of the opposing lower rotary hydraulic cylinder 87b is in a retracted state. is there. Then, when the pressure oil of the rotating hydraulic cylinders 86a and 87b in the filled state is drained and conversely the pressure oil is charged to the rotating hydraulic cylinders 86b and 87a, the right rack 84 moves upward in the drawing. ,
The rack 85 on the left side moves downward in the figure. Then
Following the movement of these racks 84, 85, the pinion 83
Rotates counterclockwise in the figure, and the table main body 81 also performs index rotation while the stone plate S is placed. Then, the table body 81 is adapted to rotate 90 degrees in a state where the pressure oils of the rotating hydraulic cylinders 86a, 86b, 87a, 87b are replaced.

Next, the electrical structure of the main part of this embodiment will be described with reference to FIG. A central processing unit (hereinafter referred to as CPU) 90, which is a cutting reference point storage unit, first and second storage units, and cutting control unit, has a read-only memory (hereinafter referred to as ROM) 91 and a random access memory (hereinafter referred to as RAM). 92, upper and lower limit switches 43a and 43b, first and second rotary encoders 46 and 65, and operating section 67 (cutting position data input section 6
8) is connected, and further, the first to third servomotors 10, 30, 53, the three-phase AC motor 40, the tilting air cylinder switching coil 94, the rotating hydraulic cylinder switching coil 95, the notification lamp 89a, and the notification. The buzzer 89b is connected via the drivers 93a to 93h. The CPU 90 is built in the operation panel 66 and controls the cutting operation of the entire device based on the program stored in the ROM 91. The RAM 92 temporarily stores the input cutting reference point, the position data of the cutting position, and the like. In addition, the operation unit 67 inputs the power ON / OFF, the cutting reference point, the cutting position, etc., by the cutting position data input unit 68 based on the position of the stone cutting head 4, and further instructs various modes.

When the upper limit switch 38a is in the ON state, the upper limit switch 38a outputs the signal to the CPU 90 to stop the driving of the second servomotor 30 and prevent the elevator body 7 from further rising. The lower limit switch 38b is also O
In the N state, output to the CPU 90 to output the second servo motor 30.
Is stopped, and further lowering of the lifting / lowering body 7 is prevented. The lower limit switch 38
When b is ON, a hydraulic pump (not shown) of the injection nozzle 27 is driven to inject water. Then, the upper limit switch 38a is in the ON state, and the driving of the hydraulic pump is stopped. Both rotary encoders 46 and 65 set the cutting reference points M and N to 0, measure the position of the stone plate cutting head 4 from the reference points M and N, and output it to the CPU 90. The tilting air cylinder switching coil 94 and the rotating hydraulic cylinder switching coil 95 include the tilting air cylinder 60 and the rotating hydraulic cylinder 86a.
The coils 86b, 87a, 87b are for switching the injection direction of the pressure oil.

Next, the operation of this embodiment configured as described above will be described. As shown in FIG. 9, the stone plate S is placed on the table 80. Then, in the longitudinal direction of the stone plate S, P1 to
The cutting position data shown by the broken line of P7 is Q1 to Q1 in the lateral direction.
The cutting position data indicated by the broken line of Q4 is input by operating the cutting position data input unit 68 and the like. That is, data is input for cutting out two types of stone plate pieces A and B having different sizes. In the figure, the lower side is the Ya side and the upper side is the Yb side in the Y-axis direction. Further, the following plate material cutting device 1
Is simplified for illustration.

First, input is made from the cutting position data in the longitudinal direction indicated by P1 to P7. P1 to P7 are P1 closer to the Ya side
The data is divided into two types of data groups, that is, the data of P4 and the data of P5 to P7 near the Yb side, and they are input separately. In this embodiment, first, the input is from the P1 to P4 side, but this order may be reversed.

Here, the operator sets a cutting reference point in the X-axis direction before inputting the cutting position data in the X-axis direction.
In FIG. 9, the right end of the main body 71 of the table 80 is set as the cutting reference point M, plotted, output to the CPU 90 with an input key (not shown), and stored in the RAM 91. At this cutting reference point M, a pendant switch (not shown) is operated to move the stone plate cutting head 4, the circular saw 22 at the lower end of the head 4 is once placed on the cutting reference point M, and this position of the circular saw 22 is set. This is the point input by the operation unit 67 as the origin. That is, the cutting reference point M is a point where the movement amount of the circular saw 22 in the Y-axis direction is 0 mm. The following movement of the stone plate cutting head 4 by manual operation is operated by a pendant switch (not shown).

The operator actually measures the width in the longitudinal direction to be cut (X-axis direction in FIG. 9) with a ruler, a tape measure, etc., and inputs the measured value at the input section 68. For example, if the distance P1 from the cutting reference point M in FIG. 9 is 300 mm, the first X-axis setting meter 69a of the input unit 68 can measure 300 mm.
Enter If the distance P2 is 1200 mm from P1, 1200 mm is input by the first X-axis setting meter 69b. In this way, the first X-axis setting meters 69a-6
The cutting position data in the X-axis direction of P1 to P4 are sequentially input by 9d.

Next, the length to be cut at each cutting position P1 to P4 and the cutting start position or cutting end position, that is, the cutting position data in the X-axis direction is input. A so-called teaching playback system is used for inputting the cutting position data in the X-axis direction, the circular saw 22 is once moved to the actual cutting start position and the actual cutting position, and the position is stored in the CPU 90.

First, by operating a pendant switch (not shown), the circular saw 22 of the stone plate cutting head 4 is moved to Y in FIG.
Place it on the a side. Then, the operator visually recognizes the position of the circular saw 22 and operates the operation lever 79 to move the circular saw 22 to P1 to P4.
It is arranged at the cutting start position C1. This cutting start position C
1 is determined by the size of the stone plate S, the mounting position on the table 80, and the like. Then, at the cutting start position C1, the first cutting start position determination key 73a in the X-axis direction of the longitudinal direction P is input through the input unit 68 shown in FIG. Then, an input signal is output to the CPU 90, and this cutting start position C
1 is stored in the RAM 82. The operator again operates the pendant switch to position the circular saw 22 at the cutting end position C2 of P1 to P4. Then, at the position C2, the first cutting end position determination key 73a is input. Then
An input signal is output to the CPU 90 and this cutting end position C2
Is stored in the RAM 91. By the above, the input of the cutting position data of P1 to P4 is completed.

Next, the cutting position data of P5 to P7 is set to P
The same is done as the input of the cutting position data of 1 to P4. That is, the width in the longitudinal direction to be cut (X-axis direction in FIG. 9)
Is measured with a ruler, a tape measure, or the like, and the measured value is input through the input unit 68. For example, P5 from the cutting reference point M in FIG.
Is 400 mm, the second X of the input unit 68
Input 400 mm with the axis setting meter 70a. Also P
If the distance of 6 is 1800 mm from P5, 1800 mm is input with the second X-axis setting meter 70b. In this way, P2 is sequentially set by the second X-axis setting meters 70a to 70c.
~ Input the cutting position data in the X-axis direction of P7.

Next, the operator operates the pendant switch while visually checking the position of the circular saw 22 to move the circular saw 22 to P5.
It is placed at the cutting start position C3 of P7, and the second position is set at the same position C3.
The cutting start position determination key 74a is input. Then, an input signal is output to the CPU 90 and the cutting end position C3 is R.
It is stored in AM91. The operator again operates the pendant switch to position the circular saw 22 at the cutting end position C4 of P5 to P7. Then, at the position C4, the second cutting end position determination key 74b is input. Then, an input signal is output to the CPU 90 and the cutting end position C4 is the RAM 9
1 is stored. This completes the input of the cutting position data of P5 to P7.

Next, as shown in FIG. 11, a table rotation switch (not shown) is operated to stop the table 80 at a position rotated by 90 degrees. Then, the cutting position data in the lateral direction indicated by Q1 to Q4 is input. As a premise for inputting the cutting position data, the operator defines a cutting reference point not only in the longitudinal direction but also in the lateral direction. In FIG. 9, the cutting reference point N is set near the lower right end of the main body 71 of the table 80. The cutting reference point N is input by the same operation as the cutting reference point M in the longitudinal direction.

The operator wants to cut the width in the lateral direction (see FIG. 11).
In the X-axis direction) is measured with a ruler, a tape measure, or the like, and the measured value is input through the input unit 68. For example, in FIG. 10, if the distance Q1 from the cutting reference point N is 200 mm, 200 mm is input by the first X-axis setting meter 75a of the input unit 68. If the distance Q2 is 1200 mm from Q1, 1200 mm is input by the first X-axis setting meter 75b. In this way, the cutting position data of Q1 to Q4 in the X-axis direction are sequentially input.

Then, the cutting position data in the Y-axis direction at each of the cutting positions Q1 to Q4 is input. In the short-side direction as well as in the long-side direction, the so-called teaching / playback method is used to input the cutting position data in the X-axis direction. First, the pendant switch is operated to place the circular saw 22 of the stone plate cutting head 4 on the Xa side in FIG.
Then, the operator visually recognizes the position of the circular saw 22 and
2 is arranged at the cutting start position C5 of Q1 to Q4. Then, at the same position C5, in the input section 68 shown in FIG.
Enter 7a. Then, an input signal is output to the CPU 90 and the cutting end position C5 is temporarily stored in the RAM 82. The operator again operates the operation lever 79 to move the circular saw 22 to the Q position.
It is arranged at the cutting end position C6 of 1 to Q4. Then, at the position C6, the third cutting end position determination key 77b
Enter Then, an input signal is output to the CPU 90 and the cutting end position C6 is temporarily stored in the RAM 82. This completes the input of the cutting position data of Q1 to Q4. In the short-side direction in this embodiment, unlike the long-side direction which is divided into two groups P1 to P4 and P5 to P7, Q1 to Q4 are all cut off from the Xa side to the Xb side. Therefore, the fourth cutting start position determination key 78a and the fourth cutting end position determination key 7
8b will not be used.

By the above cutting position data input operation,
All the cut data is stored in the RAM 91 of the CPU 90. Next, when a cutting start switch (not shown) is input, the CPU 90 reads the data from the RAM 91 and causes the stone cutting head 4 to execute the cutting operation based on the data. In the state in which the cutting position data has been input, the stone plate S placed on the table 80 has the short side in the X-axis direction as shown in FIG. Therefore, the Q1-Q4 positions in the lateral direction are first cut.

By inputting the disconnection start switch, the CPU
90 outputs a drive signal to the drivers 93a and 93d to drive the first and third servomotors 10 and 53. Then, as shown in FIG. 11, the stone plate cutting head 4 is moved so that the circular saw 22 comes from the cutting end position C6 of Q4 (the position where the cutting position data has been input) to the cutting start position C1 of Q5. . At the same time, the CPU 90 outputs a drive signal to the driver 93c to drive the three-phase AC motor 40 and rotate the circular saw 22. When the circular saw 22 reaches the cutting start position C5, the CPU 90 outputs a drive signal to the driver 93b to drive the second servomotor 30 and lower the elevating body 7. As the lifting body 7 descends, the lower engaging piece 4
4b engages with the lower limit switch 43b, the drive of the second servomotor 30 is stopped, and the lifting / lowering body 7 is stopped.

The circular saw 22 descending together with the lifting / lowering body 7 cuts the stone plate S from the C5 position to the C6 position based on the cutting position input data. When the circular saw 22 reaches the C6 position, C
The PU 90 outputs a drive signal to the driver 93b again to drive the second servomotor 30 and raise the lifting body 7. In the ascending / descending body 7, the upper engaging piece 44a engages with the upper limit switch 43a, and the ascending / descending body 7 moves in the circular saw 22.
And the stone plate S do not come into contact with each other. Then CP
U90 outputs to the drivers 93a and 93d to drive the first and third servomotors 10 and 53. Then, the stone plate cutting head 4 starts moving from the Yb side to the Ya side with respect to the Y-axis direction, and moves leftward with respect to the X-axis direction. That is, the stone plate cutting head 4 obliquely reaches the cutting start position C5 at the position Q2. Then, the circular saw 22 cuts again from the C5 position to the C6 position at the Q2 position. Here, when the stone plate cutting head 4 moves to the Q2 position, the CPU
90 outputs a drive signal to the driver 93e to drive the tilting air cylinder switching coil 94. Then, the beam main body 51 tilts and cuts from the C5 position to the C6 position in the tilted state. That is, as shown in FIG. 6B, it is cut in a slanted shape. Similarly, at the Q3 and Q4 positions, the angle of the beam main body 51 returns to the original position again, and similarly, the beam is cut from the C5 position to the C6 position, and the cutting in the lateral direction is completed.

Next, the CPU 90 outputs a drive signal to the driver 93f to drive the rotating hydraulic cylinder switching coil 95. Then, the table body 81 of the table 80
Is rotated in the opposite direction to that when the cutting position data is input, and the table 80 is returned to the initial state when the stone plate S was placed as shown in FIG. On the other hand, the CPU 90 uses the drivers 93a and 93d.
To drive the first and third servomotors 10 and 53 to move the stone plate cutting head 4 to move the circular saw 22 to P.
The cutting start position C1 in 1 is set. Then, hereinafter, the stone plate cutting head 4 is caused to start the longitudinal cutting operation for P1 to P7 in the longitudinal direction.

The CPU 90 outputs a drive signal to the driver 93c to drive the three-phase AC motor 40 and rotate the circular saw 22. When the circular saw 22 reaches the cutting start position C1, the CPU 90 outputs a drive signal to the driver 93b to drive the second servo motor 30 and lower the elevating body 7, so that the second servo motor 30 operates as described above. The drive is stopped and the lifting / lowering body 7 is stopped.

The circular saw 22 lowered together with the lifting body 7 is P1.
Cut position from C1 position to C2 based on position input data
The stone plate S is cut to the position. That is, the cutting operation is stopped midway based on the data. When the circular saw 22 reaches the position C2, the CPU 90 outputs a drive signal to the driver 93b again to drive the second servomotor 30 and raise the lifting body 7. The ascending / descending body 7 has the upper engaging piece 44a.
Engages with the upper limit switch 43a, and the lifting / lowering body 7 stops at a position where the circular saw 22 and the stone plate S do not abut.

Next, the CPU 90 causes the drivers 93a, 9a
3d to output the first and third servomotors 10, 53
Drive. Then, the stone plate cutting head 4 starts moving from the Yb side to the Ya side with respect to the Y-axis direction, and moves leftward with respect to the X-axis direction. That is, the stone plate cutting head 4
Skews and reaches the cutting start position C1 at the position P2. Then, the circular saw 22 moves from the C1 position to the C2 position again at the P2 position.
Cut to position. Cut in order from P1 to P4,
When the cutting of P4 is completed, the CPU 90 outputs the drive signal again to drive the first and third servomotors 10 and 53, and moves the stone plate cutting head 4 to the P5 position. Then, similarly to P1 to P3, the circular saw 22 is driven to drive P5 to P5.
Cut P7 from position C3 to position C4. As a result, it is possible to obtain two types of small stone plate pieces A and B.

With this structure, the present embodiment has the following effects. 1) It is not necessary to input and cut the longitudinal direction and the lateral direction separately as in the conventional case, and if the cutting position data in the longitudinal direction and the lateral direction are input to the cutting position data input section 68 first. , Can be cut in both directions by automatic control until it becomes a product. Therefore, the operator has only one stone plate S
The trouble of repeatedly inputting and disconnecting data is eliminated. Also, once the worker completes data entry,
It is possible to concentrate on another work, and it is sufficient to move the completed stone plate pieces from the table 80 when the hands are free.

2) It is necessary to change the cutting position in the longitudinal direction and the transverse direction for each stone plate in order to remove the stone plate while avoiding the cracked and cloudy portions. In this embodiment, since the cutting / playback method can be used to input the cutting data in both directions easily and accurately, the input operation for each sheet is simplified.

3) In this embodiment, the table 80 is rotated by the rotating hydraulic cylinders 86a, 86b, 87a, 87b, and this is controlled by the CPU 90 according to the cutting position data in the longitudinal direction and the transverse direction. It is designed to rotate. Therefore, it is not necessary for the operator to operate and rotate in each direction as in the conventional case, and automatic control becomes possible in the cutting work in two directions of the longitudinal direction and the lateral direction.

4) In this embodiment, with respect to the movement of the stone plate cutting head 4 in the Y-axis direction in the Y-axis direction, the cutting start position and the cutting end position are input in advance by the teaching / playback system. Then, the circular saw 22 automatically starts or ends cutting at those positions.
Therefore, it is not necessary for the operator to constantly monitor the cutting start position and lower the circular saw, or conversely, raise it at the cutting end position as in the conventional case. That is, it is not necessary for the worker to operate the device when he / she disconnects.

If the cutting end position or the like is confirmed while actually cutting, the position may be mistakenly cut and the cutting may be excessively cut. However, if an error is found in advance when inputting the cutting position data, the probability of such an error will be greatly reduced.

5) Further, when the cutting start position is detected by the limit switch as in the conventional case, regardless of the size of the stone plate S, the cutting is not started unless the circular saw reaches the limit switch and is input. It was Even at the cutting end position, the cutting was not ended unless the limit switch was reached. Therefore, the circular saw, which is not related to the cutting, has a time to idle around, resulting in a loss of working time. However, in the present embodiment, the cutting start position and the cutting end position are previously input according to the stone plate S, so that the cutting start position and the cutting end position can be always set according to the size of the stone plate S.

6) The tilting air cylinder 60 was attached to the plate material cutting apparatus 1. This makes it possible to form an inclination on the cut surface, and this is also controlled by the CPU 90. Therefore, if the operator inputs in advance whether or not to perform the inclined cut, the inclination is automatically formed on the cut surface. It is possible to obtain the slab fragments.

Although one embodiment of the present invention has been described in detail above, the present invention is not limited to the above embodiment and can be carried out by changing to other modes. In the above embodiment, the cutting data is input for each stone plate S placed on the table 80 to perform the cutting operation. But,
As shown in FIG. 4, a plurality of tables 80 are generally arranged along the longitudinal direction of the frame 2. Therefore, it is troublesome for the operator to repeat data input and cutting for each stone plate S. Therefore, the cutting data of a plurality of stone plates S may be input in advance when the first cutting data is input, and the stone plates S placed on the table 80 in the stone plate cutting device may be collectively cut by automatic control. Good. In this way, the stone plate S can be cut more efficiently.

In the above embodiment, the cutting in the lateral direction is from C3 to
It was only between C4, and was a person who cut off completely in the lateral direction. However, in the short-side direction as well, as in the case of the long-side direction, it is of course possible to stop the cutting in the middle and skip, or to perform special cutting such as cutting out from the middle. In particular,
It is very convenient when cutting the part where cracks and cloudiness can be avoided. Further, it becomes possible to obtain stone plate pieces of various sizes.

Further, in the above embodiment, two types of cutting were possible for cutting in the Y-axis direction. That is,
In the longitudinal direction, C1 to C2 and C3 to C4 were cut at different intervals. It is possible to increase the number of divisions. By doing so, it is possible to obtain stone plate pieces having various lengths in the Y-axis direction.

In the above embodiment, the circular saw 22 was used for cutting. However, it is also possible to use a band saw or a water jet other than the circular saw 22 as a cutting tool.

In addition, the beam 3 and the column 16 are moved by the rack and the pinion in the above embodiment, but it is also possible to use a belt and a pulley or a timing belt. Further, although the ascending / descending position of the ascending / descending body 7 is detected by the limit switches 43a and 43b, it goes without saying that a rotary encoder may be used. Further, although the rotary encoders 46 and 65 are used as the first and second measuring means, a potentiometer or the like may be used instead. Further, in the above-mentioned embodiment, the cutting is started from the lateral direction of the stone plate S, but of course the cutting may be carried out from the longitudinal direction. Further, the present invention can be applied to wooden boards other than stone boards, and other modifications of the present invention are possible without departing from the scope of the invention.

[0075]

As described above in detail, in the invention of claim 1, if the measurement data is first stored in the storage means,
It can be cut in both directions by automatic control until it becomes a product. Therefore, the trouble of the operator repeatedly performing data input and cutting on one stone plate S is eliminated. The cutting work is also speeded up. In addition to this effect, the invention of claim 2 does not require a high-priced cutting tool such as a water jet using a saw blade such as a circular saw or a band saw. According to the invention of claim 3, in addition to the effects of the inventions of claims 1 and 2, since the table rotates, the relative cutting direction of the saw blade with respect to the plate material can be changed, and the measurement data for each position can be stored. Even with a saw blade that can cut in only one direction, the plate material can be freely cut vertically and horizontally under automatic control.

In the invention of claim 4, claims 1 to 3
In addition to the effect of the invention described above, it is possible to automatically form an inclined cutting surface on the plate material, and the cutting operation of the plate material that requires the inclined cutting surface is speeded up. According to the invention of claim 5, in addition to the effects of the inventions of claims 1 to 4, it becomes possible to input the measurement data of the plate materials on a plurality of tables at one time, and all that is required is to input the measurement data first. The plate materials can be processed continuously at once, and the work is extremely quick.

[Brief description of drawings]

FIG. 1 is a front view of a plate material cutting apparatus that is an embodiment of the present invention.

FIG. 2 is a side sectional view illustrating a head of the plate material cutting apparatus of the embodiment.

FIG. 3 is a side sectional view for explaining a frame and a holding portion of the plate material cutting device of the embodiment.

FIG. 4 is a plan view of the plate material cutting apparatus according to the embodiment.

FIG. 5 is a back view illustrating the table of the embodiment.

FIG. 6 is a partial perspective view illustrating a cutting angle of a stone plate in the embodiment, (a) is a case of cutting at a right angle,
(B) is a case of cutting with an angle of 75 degrees.

FIG. 7 is a front view of the cutting one data input unit in the embodiment.

FIG. 8 is a block diagram illustrating an electrical configuration of the embodiment.

FIG. 9 is a schematic plan view explaining a cutting operation of the plate material cutting apparatus of the embodiment.

FIG. 10 is a schematic plan view explaining a cutting operation of the plate material cutting apparatus of the embodiment.

FIG. 11 is a schematic plan view explaining a cutting operation of the plate material cutting apparatus of the embodiment.

FIG. 12 is a schematic plan view explaining a cutting operation of the plate material cutting apparatus of the embodiment.

FIG. 13 is a schematic plan view explaining a cutting operation of the plate material cutting apparatus of the embodiment.

FIG. 14 is a schematic plan view explaining a cutting operation of the plate material cutting apparatus of the embodiment.

FIG. 15 is a schematic plan view illustrating a cutting operation of a plate material cutting device of a conventional example.

FIG. 16 is a schematic plan view illustrating a cutting operation of a plate material cutting device of a conventional example.

FIG. 17 is a schematic plan view illustrating a cutting operation of a plate material cutting device of a conventional example.

FIG. 18 is a schematic plan view illustrating a cutting operation of a plate material cutting device of a conventional example.

FIG. 19 is a schematic plan view explaining a cutting operation of a plate material cutting device of a conventional example.

FIG. 20 is a schematic plan view illustrating a cutting operation of a plate material cutting device of a conventional example.

FIG. 21 is a schematic plan view illustrating a cutting operation of a plate material cutting device of a conventional example.

FIG. 22 is a schematic plan view illustrating a cutting operation of a plate material cutting device of a conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Plate material cutting device, 2 ... Frame, 3 ... Beam, 4 ... Plate material cutting head that is a stone plate cutting head, 22 ... Circular saw that is a saw blade, 46 ... Rotary encoder that is first measuring means, 60 ... Tilt member Tilt air cylinder, 65 ... Rotary encoder as second measuring means, 68 ... Cutting position data input section as first and second input means, 80 ... Table, 90 ... Cutting reference point storage means, storage means, cutting control Means CPU, S ... Stone plate that is plate material.

Claims (5)

[Claims] 1. A frame mounted on a horizontal plane,
A beam movable along the longitudinal direction of the frame is suspended, a plate material cutting head movable along the longitudinal direction of the beam is attached to the beam, and a plate material placed on a table is cut. In a plate material cutting device for obtaining a plurality of plate pieces by cutting at a desired interval in parallel with a cutting tool of a cutting head, first measuring means for measuring a relative position of the plate material cutting head with respect to a frame, and the plate material cutting device Second measuring means for measuring the relative position of the head to the beam, cutting reference point storing means for storing the cutting reference point of the plate cutting head, and plate cutting head by the first measuring means with the cutting reference point as a reference Measuring the distance between cutting lines with respect to the plate material and inputting the measurement data, and the cutting start position and cutting end position of each cutting line are measured by the second measuring means. A second input means for inputting the measurement data, a storage means for storing each measurement data input by both the input means, and a head for cutting the plate material based on the measurement data stored by the storage means. A plate material cutting device, comprising: a cutting control unit that controls a position and causes a cutting tool of the plate material cutting head to cut the plate material from a cutting start position to a cutting end position at each cutting line. 2. The plate material cutting device according to claim 1, wherein the cutting tool is a saw blade capable of cutting in one direction. 3. The table of the plate material cutting device is horizontally rotatable and can be stopped at a plurality of stop positions, and the cutting line interval and the cutting start position and the cutting end position at each cutting line are the respective stop positions. The measurement data is input for each stop position by the cutting control means based on the measurement data stored in the storage means. The plate material cutting device according to claim 2, wherein a cutting tool of the plate material cutting head cuts the plate material. 4. The beam is provided with a tilting member for rotating the beam in an outer peripheral direction and tilting the plate material cutting head with respect to a horizontal plane, and has tilting control means for controlling driving of the tilting member. Claims 1 to 1 characterized in that
The plate material cutting device according to any one of 3 above. 5. A plurality of tables of the plate cutting device are arranged along the longitudinal direction of the frame, and the measurement data is measured for each plate placed on each table and stored in the first and second storage means. Item 5. The plate material cutting device according to any one of Items 1 to 4.