JPH05345314A - Circular saw type nc cutter for brick and stone - Google Patents

Abstract

PURPOSE:To contrive to reduce the changing time of preparatory plan and, at the same time, to improve working accuracy by a method wherein cutting work is performed through the determination of the cutting work data of base working material on the basis of base working material data detected with a touch sensor and the dimensions of a product and, at the same time, the correction of the cutting work data on the basis of the measured amount of wear of a cutter blade. CONSTITUTION:The position, dimension and shape of base material are measured by extending a touch sensor 22 so as to come into contact with the base material attracted on a vacuum pad and set to an NC controlling device 50. Further, the amount of wear which is measured with a wear measuring device 21, of a blade 20 is set to the NC controlling device 50. Furthermore, the cutting work data such as the cutting position, depth of cut and the like of the base working material are determined on the basis of the dimensions and position of the base material. Next, a traversing device 10 and a cutting device 16 are run traverse and vertically moved with the NC controlling device 50, and, at the same time, the blade 20 is tiltingly run and, by turning a work table 30, the blade 20 is registered to cutting position for cutting.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is a circular saw type N for bricks / stones for placing and cutting a large base material of bricks / stones on a processing table.
It relates to the C cutter.

[0002]

2. Description of the Related Art Conventionally, numerical control (NC) processing machines have been used in various fields. Machining by numerical control is to perform three-dimensional movement of a tool according to a predetermined program to perform cutting, polishing, etc. of a work material. Metal processing of large-sized products with such NC processing machines
The material made from a casting with almost the same dimensions as the final product dimensions is cut out and processed. On the other hand, in the processing of bricks and stones, a large base material is first cut and polished to finish, and the cutting work is indispensable in the processing process.
Conventionally, the cutting of the base material of the brick or stone is performed after the base material is placed on the processing table and then clamped by a dedicated jig.

[0003]

The conventional cutting of brick and stone base materials is such that even with the most automated circular saw cutter, the cutting pitch and cutting depth are set and the cutting is performed automatically in parallel. It is necessary to adjust the position of the brick and cutter for each surface to be cut, and this work is a heavy work because the base material is extremely heavy, which requires manpower and takes a long time for setup change in the processing time. There was a problem of poor sex. Further, when the product is not a rectangular parallelepiped, this position adjusting work is more complicated and requires skill, and even a skilled person takes time. Further, since the base material has to be removed from the jig each time one surface is processed, the accuracy cannot be improved, and polishing of the cut surface is required as post processing.

The present invention is intended to solve the above-mentioned problems, and in the cutting of bricks and stones, the setup change time is shortened, the skillful work and the heavy-duty work are reduced, the processing accuracy is improved and the post-processing is eliminated. It is an object of the present invention to provide a circular saw type NC cutter for bricks / stones that can improve productivity and save labor.

[0005]

According to the present invention, a machining base material for bricks and stones is placed on a revolvable machining table, and an NC control device moves, traverses, ascends and descends, and tilts the machining tool. A circular saw-type NC cutter for bricks / stones that controls the rotation of a table to cut a machining base material, and includes a touch sensor that detects the size and position of the machining base material, and the NC control device uses a touch sensor. It is characterized in that cutting processing data such as a cutting position and a cutting depth of the processing base material is determined from the detected processing base material data and a preset product size, and the cutting processing is performed. Further, the present invention is characterized in that the NC control device can set the blade diameter, and automatically changes the positioning data by setting the diameter when the blade diameter is changed. Further, the present invention further comprises a measuring device for measuring the blade tip position of the cutter blade, and the NC control device corrects the cutting processing data according to the change of the cutter blade diameter and the wear amount from the measured blade tip position of the cutter blade. It is characterized by Further, according to the present invention, the processing table is provided with a plurality of vacuum pads connected to a plate which moves up and down by an air cylinder type work drawing device via elastic members, and a vacuum pump connected to the vacuum pad through a pipe. The processing base material is sucked downward to prevent lateral displacement. Further, the present invention is characterized in that each of the plurality of vacuum pads is provided with a valve for opening and closing a pipe. Further, the present invention is characterized in that the filter is arranged in the vacuum pipe connected to the vacuum pad and an air source for applying air pressure to the vacuum pipe is provided.

[0006]

The present invention, the brick on the processing table that can be swiveled,
The machining base material of stone is placed and the dimensions and position of the machining base material are detected by the touch sensor, and the cutting processing data such as the cutting position and the cutting depth of the machining base material is detected based on the detection result and the preset product dimensions. Is determined, and the NC control device causes the blade to travel, traverse, ascend and descend, and tilt, and the processing table is rotationally controlled to cut the processing base material. When the blade diameter is changed, the value is set to automatically change the cutting data, and the wear amount of the blade is measured to correct the cutting data. In addition, a plurality of vacuum pads provided on the processing table suck the processing base material downward to prevent lateral slippage, and a filter installed in the vacuum piping separates cutting water and dust, while applying air pressure to the vacuum piping. Then, the deposits in the pipe are removed. As a result, no jig is required on the processing table, the base material can be cut with the base material fixed except for the upper and lower surfaces, and the base material data can be obtained by the touch sensor. It can be placed anywhere on the table, shortening the setup change time and allowing a small number of people to operate without being an expert. In addition, the product dimension data and the base material data from the touch sensor enable fully automatic cutting of parts other than the upper and lower surfaces of the base material, eliminating the need for complicated base material setting work for each surface, resulting in high processing accuracy and post-processing. No need for polishing.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a diagram showing the construction of a circular saw type NC cutter for bricks / stones according to the present invention, FIG. 2 is a plan view of the circular saw type cutter, and FIG.
4 is a diagram for explaining running, traversing, and lifting of the circular saw cutter, FIG.
FIG. 5 is a diagram showing the structure of a processing table, and FIG. 5 is a diagram for explaining cutting work on the processing table. In the figure, 1 is a pedestal, 2 is a rail, 3 is a traveling carriage, 4 is wheels, 5 is an encoder, 10 is a traverse device, 11 is a servomotor for traveling, 1
2 is a traverse servo motor, 13 is a lifting servo motor,
14 is a spindle motor, 15 is a tilting servomotor, 16
Is a cutter device, 17 is a traveling beam, 20 is a blade,
21 is a wear measuring device, 22 is a touch sensor, 30 is a working table, 31 is a working base material, 32 is a vacuum pad, 33 is a work drawing device, 34 is a table rotation servomotor, 40 is a vacuum pump, 41 is air. A source, 42 is a separation tank, 43 is an air-blowing automatic valve, and 50 is an NC controller.

In FIG. 1, a cradle 1 is provided with a traversing device 10 and a cutter device 16 which can be moved up and down, and a blade 20 for cutting a work base material is provided at a lower end portion thereof. The traverse device 10 includes a traveling servo motor 11 and a traverse servo motor 12, and the cutter device 16 includes a lifting servo motor 13, a spindle motor 14, and a tilting servo motor 15, and the blade 20 includes a spindle. Motor 1
4 is driven to rotate and the traveling servomotor 11
Thus, the rail 2 travels in the direction of arrow A, the traverse servomotor 12 traverses in the direction of arrow B (perpendicular to the paper surface), and the elevation servomotor 13 moves up and down in the arrow C direction. , Tilt as indicated by arrow D.

As shown in the plan view of FIG. 2, for example, the rails 2 are arranged on both sides of a rectangular processing table 30, and the traveling beam 17 travels on the rails 2. Of course, the processing table is not limited to a rectangle, but may be a circle, a polygon, or the like. For traveling of the traveling beam 17, for example, as shown in FIG. 3, the rotational driving force of the traveling servomotor 11 is transmitted to the shaft 62 via the chain 60 and the sprocket 61, and further to the chain 64 via the sprocket 63. The wheels 66 rotate through the sprocket 65 and the rail 2
It runs on top. Further, a rack 68 is provided beside the rail 2 to engage with the pinion 69 to mount the encoder 5, and the traveling position can be detected from the output thereof.

Further, the traversing device 10 traverses along a traveling beam 17 spanning between the rails 2. That is, as shown in FIG. 3, the traveling beam 17 is provided so as to surround the traveling shaft 62, and the rail 71 is provided at the lower end portion thereof, and the traverse roller provided in the traverse device 10 is provided on this rail. 72 is engaged from the lower side. The axle of the traverse roller 72 is supported by bearings, and the rack 100 and the pinion 101 that meshes with the rack are provided above the traverse beam 70. The pinion 101 is rotationally driven by the traverse servo motor 12 and traverses along the rail 71. At this time, the traverse device 10 slides on the surface of the traveling beam 17. Although illustration is omitted, the horizontal position can be detected by the encoder even in the horizontal direction.

Further, the traverse device 10 is provided with a cutter device 16 to which a blade 20 is attached so that the cutter device 16 can be moved up and down.
As shown in FIG. 3, the lifting servomotor 13 is arranged above the cutter device 16, and the lifting screw 82 screw-fitted to the traverse device 10 via the chain 80 and the bevel gear 81.
Is rotated and the cutter device 16 moves up and down together with the lifting servomotor 13, and the lifting position is detected from the rotation direction and the rotation amount of the servomotor 13.

The tilting servomotor 15 and the speed reducer 2 are also provided.
By driving through 6, the blade 20 is rotated and tilted in a vertical plane so that cutting at an arbitrary angle can be performed. Further, the cutter device 16 is provided with a stretchable touch sensor 22, which extends the touch sensor prior to the processing of the base material, moves the traverse device 10 and the cutter device 16, or swivels the processing table to operate the sensor. When the workpiece is brought into contact with the base material, the position of the base material and its size / shape are detected, and the detection result is set in the NC control device 50, the NC control device 50 determines the base material of the processing based on the detection data and the preset product size. The cutting processing data such as the cutting position and the cutting depth are determined. Note that the cutting may not be performed once but may be divided into multiple times to cut one surface.
At 0, the final cutting position is calculated, and the number of cuttings is automatically set from this cutting amount. Further, a wear measuring device 21 capable of measuring the wear amount (blade length, blade thickness) of the blade optically, electrically, or mechanically is provided to detect the wear of the blade prior to processing the base material, The detection result is the NC control device 5
When the positioning data is set to 0 and the blade diameter is changed, the blade diameter is set in the NC controller 50 to automatically change the cutting processing data.

On the other hand, the processing table 30 placed in the gantry 1 on which the processing base material 31 of brick or stone is placed is rotated by the table rotation servomotor 34, and the vacuum pump 4
No. 0, a plurality of vacuum pads 32 that are evacuated through the separation tank 42 are provided, and are vertically driven by a work drawing device 33 composed of an air cylinder to suck and fix the processed base material. Each of the plurality of vacuum pads has a valve so that the use place can be arbitrarily selected according to the base material size and its setting position, and the alignment work is unnecessary when setting the base material.
A cover is put on an unused pad to protect the vacuum pad and the pipe from cutting water and dust. A separation tank (filter) 42 provided in the vacuum pipe separates cutting water and dust from the air source 41.
More pressure can be applied to remove deposits in the pipe.

Work retractor 3 comprising an air cylinder
As shown in FIG. 4, a common drawing plate 35 is connected to the machining table 3, and as shown in FIG.
The vacuum pad 32 is supported by a spring 36 whose one end is connected to, and when the air cylinder is raised as shown in FIG. 5A, the vacuum pad rises via the spring, and at this time, the vacuum pump evacuates. Then, the base material is sucked by the vacuum pad below the base material. When the air cylinder is lowered in this state, as shown in FIG. 5B, the vacuum pad 32a that is completely below the base material and sucks the base material is deformed due to the characteristics of the material. The vacuum pad that is still in the suction state and is not sucking the base material descends.

The base material is placed on the processing table via the veneer plate, and the cutting point is usually around the base material. Since the vacuum pad of this part is lowered, the base material is cut by the cutter blade 20. Although it may damage the plywood, it does not cut the vacuum pad.

Next, the cutter operation will be described. Set the base material on the surface of the processing table laid with plywood except for the vacuum pad. At this time, the base material may be located anywhere. Next, the work retractor 33 is operated to raise the vacuum pad to suck the base material, and in this state, the common retracting plate 35 is lowered to remove all but the necessary vacuum pad as shown in FIG. 5B. Lower it. Next, the touch sensor 22 is extended, the traveling carriage 3, the traverse device 10 and the cutter device 16 are moved, the machining table 30 is rotated, and the like, and the touch sensor is brought into contact with the base material to determine the position and size / shape of the base material. Measure and measure the result by NC controller 5
The wear amount of the blade 20 is measured by the wear measuring device 21 and set in the NC control device 50 in the same manner. Cutting processing data such as the cutting position and cutting depth of the processing base material is determined from the base material size and position thus obtained and the preset product size. Then N
The traverse device 10 and the cutter device 16 are controlled by the C control device 50.
While traveling, traversing, and ascending and descending, the blade is tilted, and if necessary, the processing table is swung to align the blade with the cutting position and perform cutting. The cutting is usually performed in the peripheral portion of the base material, and the vacuum pad of this portion is lowered, so that the vacuum pad is damaged even if the blade 20 is slightly below the base material as shown in FIG. Never,
The area other than the vacuum pad is covered with plywood,
Does not damage the processing table.

[0017]

As described above, according to the present invention, the base material is fixed by adsorbing the brick / stone material base material from the lower part by a plurality of vacuum pads provided on the processing table, and the base material is fixed to the jig. Since there is no, it is possible to cut with the base material fixed except for the upper and lower surfaces of the base material, and with the touch sensor,
Since the position, size, and shape of the base material can be detected, the base material can be placed anywhere on the processing table, the set time can be shortened, and the setup change time occupying 1% of the total processing time.
The number has been reduced to 5, and skilled persons are no longer required, and it has become possible to operate the conventional 1 machine / 1 person operation for complex machining. In addition, since it is possible to cut all but the upper and lower surfaces of the base material automatically based on the product size data and the base material data from the touch sensor, complicated base material setting work for each surface is not required, and the base material is cut while it is fixed. Therefore, the processing accuracy is high, and polishing processing as a post processing is not necessary.

[Brief description of drawings]

FIG. 1 is a diagram illustrating a configuration of a circular saw type NC cutter for bricks / stones according to the present invention.

FIG. 2 is a plan view of a circular saw cutter.

FIG. 3 is a diagram for explaining traveling, traversing, and lifting of a circular saw cutter.

FIG. 4 is a diagram showing a structure of a processing table.

FIG. 5 is a diagram for explaining a cutting operation on a processing table.

[Explanation of symbols]

1 ... Frame, 2 ... Rail, 3 ... Traveling carriage, 4 ... Wheels, 5 ...
Encoder, 10 ... Traverse device, 11 ... Traveling servo motor, 12 ... Traverse servo motor, 13 ... Lifting servo motor, 14 ... Spindle motor, 15 ... Tilt servo motor, 16 ... Cutter device, 17 ... Traveling Beam, 20 ... Blade, 21 ... Wear measuring device, 22 ... Touch sensor, 3
0 ... Machining table, 31 ... Machining base material, 32 ... Vacuum pad, 33 ... Work drawing device, 34 ... Servo motor for table rotation, 40 ... Vacuum pump, 41 ... Air source, 42
... Separation tank, 43 ... Automatic valve for air blow, 50 ...
NC controller.

Claims (6)

[Claims] 1. A machining base material for bricks and stones is placed on a rotatable machining table, and a blade is moved by an NC control device.
Circular saw type N for bricks / stones that traverses, elevates and tilts, and controls the machining table to control the machining of the machining base material
The C cutter is provided with a touch sensor for detecting the size and position of the processing base material, and the NC control device uses the processing base material data detected by the touch sensor and preset product dimensions to determine the processing base material. A circular saw type NC cutter for bricks and stones, which is characterized by determining cutting processing data such as cutting position and cutting depth. 2. The cutter according to claim 1, wherein the N
A circular saw type NC cutter for bricks and stones characterized in that the C control device can set the blade diameter, and the positioning data is automatically changed by setting the diameter when the blade diameter is changed. 3. The cutter according to claim 1, further comprising a measuring device for measuring a cutting edge position of the cutter blade,
A circular saw type NC cutter for bricks / stones, wherein the NC control device corrects the cutting processing data according to the change of the cutter blade diameter and the wear amount from the measured blade edge position of the cutter blade. 4. The cutter according to claim 1, wherein the machining table is provided with a plurality of vacuum pads connected to a plate that moves up and down by an air cylinder type work drawing device via elastic members. A circular saw type NC cutter for bricks and stones, characterized in that a vacuum pump connected to a vacuum pad through a pipe sucks down the processed base material to prevent lateral displacement. 5. The circular saw type NC cutter for bricks and stones according to claim 3, wherein each of the plurality of vacuum pads is provided with a valve for opening and closing a pipe. 6. The cutter according to claim 3 or 4, wherein a filter is arranged in the vacuum pipe connected to the vacuum pad, and an air source for applying air pressure to the vacuum pipe is provided. Circular saw NC cutter for bricks and stones.