JPH09225792A - Stone grinding and polishing device and its method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stone grinding/polishing device capable of greatly improving the operability in machining and capable of manufacturing the whole device as compact as possible, and its method. SOLUTION: In a stone grinding/polishing device A which is supported by a supporting body 3 fitted to a machine frame relative to a surface of a stone loaded on a tape on one side so as to be arbitrarily moved in the transverse and longitudinal direction, and performs the prescribed grinding and polishing operation by a grinding wheel body 5 to be rotated by a driving means, the grinding wheel body 5 is advanced/retracted by a first operating means 9 such as an air cylinder having the advancing/retracting stroke from the final refraction limit of the grinding wheel body 5 to the stone surface, the cushioning property in the advancing/retracting direction, and a fixing means in the advancing/retracting direction, and a second operating means 10 having a stroke of the prescribed grinding/polishing quantity of the grinding wheel body 5 to the stone and capable of numerical control.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stone grinding / polishing apparatus and method used for grinding and polishing stone materials in the stone processing industry and the like.

[0002]

2. Description of the Related Art Conventionally, an apparatus shown in FIG. 5 is known as an apparatus for automatically mechanically grinding or polishing stone materials such as tombstones and building materials.

In this device 80, a horizontal moving member 82 is attached to an elevating member 81, and a motor base 83 which can move forward and backward is attached to the horizontal moving member 82.
A motor 85 having a grindstone 84 attached thereto is placed, and an actuating motor 86 cuts a predetermined amount on the surface of a stone material 87 for grinding or polishing.

However, this device 80 is not compatible with the grindstone 84.
Since the entire motor base 83 supporting the grindstone 84 must be operated in the feeding operation of the above, the structure becomes large and complicated, and an expensive motor or the like is used to obtain high accuracy. In addition, a large amount of energy is required for operation, and there is a big problem that a sufficient use of the device cannot be achieved.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and provides a support attached to a machine base to the surface of a stone material placed on one table. In a stone material grinding / polishing device which is supported and arbitrarily moved in the lateral and vertical directions, and which carries out predetermined grinding / polishing by a grindstone body rotated by a driving means, the grindstone body is moved from the last withdrawal of the grindstone body. Numerical control having a first operation means such as an air cylinder having an advancing / retreating stroke up to the stone surface, cushioning properties in the advancing / retreating direction, and fixing means in the advancing / retreating direction, and a stroke of a predetermined amount of grinding / polishing of the stone body to the stone By advancing and retreating with a possible second operating means, the operability of processing can be greatly improved, and a stone grinding / polishing device that can manufacture the entire machine as compactly as possible. Beauty is an object of the present invention to provide the method.

[0006]

The means of the present invention for achieving the above-mentioned object is to support a stone mounted on a table on one side and to laterally support the stone mounted on a machine base. And stone grinding that performs predetermined grinding and polishing with a grindstone body that is arbitrarily moved in the vertical direction and rotated by drive means.
In the polishing apparatus, a grindstone main body attached to the support, a rotary shaft that is inserted into the grindstone main body and supported by an outer frame and movable back and forth with respect to the stone surface, and one end of the rotary shaft Wheel body attached to the outer frame via a grindstone holding body, a lever body having an intermediate portion rotatably attached to the outer frame body by a spindle, and the lever body pivotally supported at one end of the lever body And a first operating means such as an air cylinder having an advancing / retreating stroke from the last retreat of the grindstone to the stone surface and cushioning properties in the advancing / retreating direction and fixing means in the advancing / retreating direction, and the lever body. The second operating means, which is pivotally supported on the other end of the wheel, rotates the lever body and has a numerically controllable second operating means having a stroke of a predetermined amount of grinding / polishing of the stone material of the grindstone body and the second operating means. Stone grinding / polishing device equipped with In the configuration.

Then, the grindstone body is provided with a first operating means such as an air cylinder having an advancing / retreating stroke from the last retreat of the grindstone body to the stone surface, a cushioning property in the advancing / retreating direction, and a fixing means in the advancing / retreating direction, In a stone material grinding / polishing device for advancing / retreating by a second operation means capable of numerically controlling a stroke of a predetermined grinding / polishing amount of a grindstone body to a stone material,
The first operating means feeds the grindstone body into contact with the stone surface, and while stopping the movement of the grindstone body in the advancing / retreating direction by the fixing means, the second operating means numerically controls the grindstone body to cut into the stone surface. Selective, roughing, which involves cutting and polishing, and finishing, which uses the first operating means to feed the grindstone and bring it into contact with the stone surface due to its cushioning properties, and cut and grind the grindstone into the stone surface. It is in the stone grinding / polishing method.

[0008]

The stone grinding / polishing device of the present invention constructed as described above has the following actions.

First, in rough machining such as grinding / polishing, after the grindstone body is rotated by the driving means, the grindstone body is unwound by the first operating means and brought into contact with the stone surface, and the grinding position is set. The movement of the grindstone body in the advancing / retreating direction is stopped by the fixing means.

Then, in this state, the second operating means is operated based on the data previously input to the control means, and the grindstone is cut into the stone surface by the numerical control to cut and polish.

Further, in finishing such as grinding and polishing, the whetstone body is rotated by the driving means, and the whetstone body is fed out by the first operating means and brought into contact with the stone surface by its cushioning property, and the grindstone is brought into contact with the stone surface. Cut and grind your body.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of an embodiment of a stone grinding / polishing apparatus adopting the stone grinding / polishing method according to the present invention will be described with reference to the drawings.

In FIGS. 1 to 4, reference character A indicates that the surface of a stone material b such as a tombstone or a building material placed on the table 1 on one side is supported by a support body 3 attached to a machine base 2 and is horizontally and vertically. 1. A stone material grinding / polishing device for performing predetermined grinding / polishing by a grindstone body 5 which is arbitrarily moved in a direction and rotated by a driving means 4, and which comprises a grindstone body 6, a rotating shaft 7, a grindstone body 5, and a lever. The body 8, the first operating means 9, the second operating means 10, and the control means 11 are basically configured.

The support 3 described above is attached to the horizontal guide 12a on the machine base 2 provided near the table 1 described above.
A weight adjusting means 14 composed of a pneumatic cylinder and a linking rope suspends the moving body 13 laterally movably engaged by a moving means 12b such as a motor so that the moving body 13 can hang up and down. Balanced weight.

Further, the screw shaft 12d screwed into the screw body 12c for attaching to the rear portion of the support body 3 is rotated in the forward and reverse directions by the elevating means 12e such as a numerically controllable servo motor, whereby the support body 3 is rotated. Raising and lowering is performed arbitrarily and with high accuracy.

The above-mentioned grindstone body 6 is attached to the support body 3, and the rotary shaft 7 supported by the outer frame 15 and capable of advancing and retreating with respect to the surface of the stone material b is inserted therein.

The above-mentioned grindstone 5 is attached to one end of the rotary shaft 7, that is, to the front end thereof by a clutch 17 via a grindstone holder 16, and a diamond grindstone or the like is used.

The rotating shaft 7 is integrally moved with the outer frame body 15 and has a connecting portion 7a of a lever body 8 described later at one end thereof and a spline 7b at the other end thereof. Thus, the belt 4a can be moved in the axial direction with respect to the pulley 4b on which the belt 4a is suspended by the driving means 4 such as a motor.

The lever body 8 is formed in a bifurcated shape, and the intermediate portion is rotatably attached by a support shaft 18 so as to straddle both sides of the outer frame body 15, and the support shaft 18 is used as a center. The seesaw movement can be performed in the front-back direction with respect to the stone direction.

The above-mentioned first operating means 9 is connected to one end portion (the upper end portion in FIGS. 1 and 2) of the lever body 8 by a mounting shaft 20 so that the lever body 8 faces the stone b. It is rotated and has an advancing / retreating stroke from the last retreat of the grindstone 5 to the stone surface b, cushioning properties in the advancing / retreating direction, and fixing means 21 in the advancing / retreating direction, and a conventional air cylinder or the like is adopted. It

The first operating means 9 is swingably attached to the upper portion of the grindstone body 6 by the shaft 23 of the arm 22.

The fixing means 21 is brought into a brake lock state by holding a predetermined position of the rod in the air cylinder, and the lever body 8 by the second operating means 10, which will be described later, by the mounting shaft 20 described above. It becomes a fulcrum shaft that rotates.

The second operating means 10 is the lever body 8
At the other end (lower end in FIGS. 1 and 2) of the mounting shaft 24
, And the lever body 8 is rotated to face the stone material b side so as to have a predetermined grinding / polishing stroke of the grindstone body 5 to the stone material b. An appropriate means 25 capable of numerical control is adopted, and the tip end portion of the feeding shaft 27 screwed onto the screw shaft 26 attached to the output shaft of the servomotor 25 is linked to the above-mentioned attachment shaft 24. .

The second operating means 10 is swingably attached to the lower portion of the grindstone body 6 by the shaft 29 of the arm 28.

The above-mentioned control means 11 is linked to the first and second operation means 9 and 10, the fixing means 21, etc.,
These means are appropriately operated, and a conventional computer or the like is used. Predetermined numerical values such as respective conditions for the grinding and polishing of the stone b are input in advance.

The operation of the stone material grinding / polishing method according to the embodiment of the present invention constructed as described above will be described with reference to a stone material grinding / polishing apparatus A suitable for carrying out the method.

First, in rough processing such as grinding and polishing, the non-abrasive stone material b is placed on the table 1 and pressed by the clamp 30 to be fixed in a predetermined manner.

Next, when the rod is extended by the operation of the first operating means 9, the lever body 8 rotates about the mounting shaft 24 of the second operating means 10 as a fulcrum, and the supporting shaft of the lever body 8 is rotated. 18 pushes out the connecting portion 7a from the grindstone body 6.

Therefore, the grindstone body 5 attached to the tip of the rotary shaft 7 comes into contact with the stone surface, and in this state, the air in the air cylinder, which is the first operating means 9, is evacuated to remove the grindstone body 5 from the grindstone body 5. The support body 3 of the grindstone body 5 is moved up and down freely and the moving means 1 is moved.
When moved along the surface of the stone b by 2b, the grindstone 5
Is pulled outward (retracted), and is positioned at the highest point on the stone b surface (the most protruding portion of the unevenness).

At this position, the air cylinder which is the first operating means 9 is locked by the fixing means 21, and further,
When the whetstone body 5 is rotated by the drive means 4 via the rotary shaft 7 and the second operating means 10 is fed out by a predetermined amount via the control means 11, the grindstone is rotated along with the rotation of the lever body 8 about the mounting shaft 20 as a fulcrum. The body 5 cuts into the stone b surface and performs a predetermined rough cutting, and the second operating means 10 performs a predetermined step so that the stone b surface becomes smooth without unevenness, and grinding and polishing are performed again. .

In the finishing process such as grinding / polishing, the second operating means 10 is operated to position the grindstone body 5 at the most retracted position (the movement of the grindstone body 5 at this time is restricted in the axial direction). Then, when the whetstone body 5 is rotated by the driving means 4 and the first operating means 9 is operated, the mounting shaft 24
The lever body 8 is rotated around the fulcrum as a fulcrum, and the grindstone body 5 is paid out and brought into contact with the stone material b surface by the cushioning property due to the predetermined air pressure, so that the stone material b surface is cut and finished. Polished.

[0032]

According to the present invention configured as described above, roughing and finishing of a stone surface can be easily and quickly performed by selectively operating the whetstone by the first and second operating means. Since the structure in which the whetstone body is attached is simply moved back and forth, the entire apparatus is made compact and miniaturized, so that it can be installed in a factory in a small space.

In particular, by combining the first operating means exhibiting the air cushioning property and the second operating means by the numerical control performed by the high feed accuracy of the grindstone, one machine can be selected by selecting the characteristic machining of both. Can be reliably performed, and high-quality processing can be performed at low cost with a simple device configuration. And so on.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a main part of an apparatus adopting a stone material grinding / polishing method according to the present invention.

FIG. 2 is a side view longitudinally cut near a lever body in FIG.

FIG. 3 is a front view showing an outline of a stone material grinding / polishing machine to which the apparatus according to the embodiment of the present invention in FIG. 1 is attached.

FIG. 4 is an explanatory view showing an outline of a mounting state of a support body of the grindstone body in FIG.

FIG. 5 is a front view showing an outline of a conventional stone polishing machine.

[Explanation of symbols]

 A stone material grinding / polishing device b stone material 1 table 2 machine base 3 support body 4 driving means 5 grindstone body 6 grindstone body 7 rotating shaft 8 lever body 9 first operating means 10 second operating means 15 outer frame 16 grindstone holding body

Claims (2)

[Claims] 1. A grindstone body which is supported by a support body mounted on a machine base and is arbitrarily moved in the lateral and vertical directions with respect to the surface of a stone material placed on a table on one side, and which is rotated by a driving means. In a stone material grinding / polishing device for performing predetermined grinding / polishing, a whetstone main body attached to the support, and a whetstone body that is inserted into the whetstone main body and supported by an outer frame so that the whetstone can be moved back and forth relative to the stone surface A rotary shaft, a grindstone body attached to one end of the rotary shaft via a grindstone holding body, a lever body having an intermediate portion rotatably attached to the outer frame by a spindle, and a lever body of the lever body. An air cylinder or the like having a forward / backward stroke from the last retreat of the grindstone to the stone surface and cushioning property in the forward / backward direction and a fixing means in the forward / backward direction, which is pivotally supported at one end to rotate the lever body. Of the first operating means and the lever body A second operation means capable of being numerically controlled having a stroke of a predetermined amount of grinding / polishing of a stone material of a grindstone body by pivotally supporting the end portion by pivoting the lever body, and a control linked to the second operation means A stone grinding / polishing device characterized by being provided with a means. 2. A first operating means such as an air cylinder having a grindstone body having an advancing / retreating stroke from the last retreat of the grindstone body to a stone surface, a cushioning property in the advancing / retreating direction and a fixing means in the advancing / retreating direction, A stone grinding / polishing device for advancing and retracting a stone body by a numerically controllable second operating means having a stroke of a predetermined amount of grinding / polishing, in which the stone surface is extended by the first operating means. The second operation means by numerically controlling the second operating means to cut and polish the stone surface while cutting and polishing the same, and the first operation. A stone grinding / polishing method, characterized in that the grinding stone body is unwound by a means and brought into contact with the stone surface due to its cushioning property, and a finishing process of cutting the stone body into the stone surface and polishing is selectively performed.