JPS639966B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic copying stone processing machine that automatically processes stone into a three-dimensional shape having a concave curved surface.

In recent years, stone processing has become automated, and it has become easier to process square and round shapes. In particular, since the development of automatic copy stone machining machines that use copy templates, it has become possible to automatically process complex shapes.

However, with conventional automatic copying stone processing machines,
Since a single pattern plate is used like an automatic copying lathe, it is not possible to machine into a three-dimensional shape that is a combination of two concave curved surfaces or a convex curved surface and a concave curved surface.

For example, when processing a hat for the Olympic Tower, fix the stone 1 on a turntable, process one side while copying the shape of the copy template with a cutter, and then rotate each side by 90 degrees. It is sequentially processed to form a square pyramid-shaped hat as shown in FIG. Next, hold the rotary cutter in your hand and cut each side of the square pyramid shape by hand to create a concave curved surface 2.
This completes the cap 3 of the Five Ring Pagoda as shown in Figure 2.

As described above, conventional automatic copy stone machining machines have the disadvantage that they cannot be fully automated and have extremely poor workability.

The present invention was developed as a result of various researches in view of the above points, and as a result, it is possible to completely automate even complex shapes such as the cap of the Olympic Tower, which is a combination of two concave curved surfaces, and to improve work efficiency. It provides a copying stone processing machine.

Embodiments of the present invention will be described in detail below with reference to the drawings.

3 to 5 show an embodiment of the present invention.

In the figure, reference numeral 4 denotes a cart, which is adapted to move in the X direction on two rails 5, 5 arranged in the X direction. A motor 6A is attached to the inside of this truck 4, and a turntable 7 is attached to the upper part of the truck 4 in connection with the motor 6A, so that the turntable 7 can be rotated continuously or at fixed angle intervals.

Reference numeral 8 denotes a center column erected at the corner of the cart 4, from which an arm extends horizontally, and a center retainer 9 of the stone material 1 is attached to the tip.

10 is a box-shaped two-way table, Y
It is inserted and supported by two guide pipes 11, 11 arranged horizontally along the direction, and is threadedly engaged with a screw threaded rod 12 arranged between both guide pipes 11, 11, as shown in FIG. The screw threaded rod 12 is connected to the motor 6B via a bevel gear 13.
The rotation of the screw threaded rod 12 causes the two-way table 10 that is screwed thereto to be moved in the Y direction by a feed screw mechanism.

Two horizontally arranged guide pipes 11, 11
is two pipes 1 installed vertically on both ends.
4 and 14, and are supported by brackets 15 and 15 so as to be vertically movable. In addition, this guide pipe 14,
14 and parallel to this screw threaded rod 16
A, 16A are provided, which are screwed together with the brackets 15, 15, and the horizontal guide pipes 11, 11 are moved up and down (in the Z direction) by the feed screw action caused by the rotation of the screw threaded rods 16A, 16A, and the two-way table is 10 in the YZ direction. 16B is the screw threaded rod 16A, 1
It is a screw threaded rod placed horizontally on the upper part of 6A, and is driven by a motor 6C via a bevel gear 13.

Further, a shaped cutter support stand 17 is provided on the two-way table 10, and is movable on a rail so that the cutter support stand 17 moves in the X direction. Furthermore, the inner tip of the cutter support stand 17 and the two-way table 10 are connected to the cylinder 18.
The cutter support base 17 is pressed toward the turntable 7 side. A rotary cutter 19 is attached downward to the tip of the cutter support base 17, and is
It is connected to a motor 6D mounted on the cutter support stand 17.

Reference numeral 22 denotes a guide stand formed by a cart, which rides on two rails 5, 5 arranged along the Y direction, and is moved in the Y direction by a cylinder 23 that is electrically interlocked with the movement of the two-way table 10. It is designed to move along. Further, on the turntable 7 side of this guide stand 22, a horizontal copying plate 24 with a concave curved surface 2 formed thereon is installed horizontally as shown in FIG. A vertical copy template 25 having a shape is erected.

Reference numeral 26 denotes a first copying rod projecting horizontally from the truck 4, and its tip is adapted to come into contact with the concave curved surface 2 of the horizontal copying template 24 attached to the guide stand 22.

A second copying rod 27 is fixed to the side surface of the cutter support base 17, and its tip is slidably abutted on a curved surface 28 of a vertical copying template 25 attached to the guide base 22. Further, 29 is a cylinder that constantly pulls the carriage 4 toward the guide stand 22, as shown in FIG.

Next, the operation of the stone processing machine having the above structure will be explained.

First, the stone material 1 for processing is placed on the turntable 7, and the stone material 1 is fixed by the center presser 9.

Next, the motor 6D of the cutter support stand 17 is driven to rotate the rotary cutter 19. In this state, the motor 6B is driven by a control device (not shown) to rotate the screw threaded rod 12, and the two-way table 10 is moved over the guide pipes 11, 11 in the Y direction.
move along the direction. At this time, in conjunction with the movement of the two-way table 10, the cylinder 23 extends and the guide stand 22 moves on the rails 5, 5.

The cutter support base 17 is mounted on the two-way table 10 so as to be slidable along the X direction, and is pressed forward by the cylinder 18, so the rotary cutter 19 is always urged toward the stone material 1 side. is connected to the cutter support stand 17.
The copying rod 27 comes into contact with the curved surface 28 of the vertical copying template 25 and moves in the Y direction while being restricted in its position in the X direction. Along with this, the guide stand 22 is also moved in the Y direction by the cylinder 23, and the horizontal copying template 24 attached thereto is also moved. On the other hand, the cart 4 carrying the stone 1 is pulled toward the guide stand 22 by the cylinder 29, and the first copying rod 26 attached to it comes into contact with the concave curved surface 2 of the horizontal copying template 24. , movement in the X direction is restricted.

Therefore, as the rotary cutter 19 moves along the Y direction, the cart 4 moves along the concave curved surface 2 of the horizontal copying template 24 in the X direction, and the upper part of the stone 1 is cut. Next, drive the motor 6C and rotate the screw threaded rods 16B, 16A, 16A to move the brackets 15, 14 over the upright guide pipes 14, 14.
15 is lowered and the guide pipe 1 is placed horizontally.
Rotary cutter 17 on 1, 11 descends (Z direction)
do.

Therefore, the movement of the two-way table 10 in the Y direction,
The rotary cutter 17 moves in the X and Y directions by the movement in the X direction by the vertical copying template 25, and at the same time, the stone 1 placed on the cart 4 moves in the X direction following the horizontal copying template 24, and these movements are combined. , further move the rotary cutter 19 in the Z direction and cut the stone 1.
Processing is performed sequentially from the top to the bottom, and one side of the hat is processed into a shape that combines two concave curved surfaces.

After completing the machining of one side, turntable 7
By rotating each side by 90 degrees and processing each side in the same way, the cap 3 of the Olympic tower as shown in Figure 2 is automatically processed.

Although the above embodiment shows a case in which one horizontal copying template 24 and one vertical copying template 25 are installed, more complex shapes can be processed by attaching multiple plates in parallel and switching them sequentially. You can also do that.

Further, in the above embodiment, a case is shown in which the horizontal copying template 24 is attached to the guide base 22 side and the first copying bar 26 is attached to the truck 4 side, but the reverse may be used.

Furthermore, the movement of the guide stand 22 is not limited to the cylinder 23, but may be performed using a screw threaded rod.
Furthermore, the guide stand 22 is not limited to a cart-like one, but may be one that runs on rails.

As explained above, according to the automatic copying stone processing machine according to the present invention, by combining two horizontal and vertical copying templates and controlling the movement of the rotary cutter and the turntable on which the stones are placed, the It can completely automatically process even complex shapes such as hats, which are a combination of two concave curved surfaces, and can greatly improve work efficiency compared to conventional processing machines. .

[Brief explanation of the drawing]

Figure 1 is a perspective view showing the state of a semi-finished product processed into the cap of the Olympic Tower using a conventional automatic copying stone processing machine;
The figure is a perspective view showing the cap of the completed Olympic Tower, FIG.
The figure is its front view. 1... Stone, 2... Concave curved surface, 3... Shade, 4...
Cart, 6A, 6B, 6C... Motor, 7... Turntable, 9... Center presser, 10... Two-way table, 11, 14... Guide pipe, 1
2, 16A, 16B... Screw threaded rod, 17
... Cutter support stand, 18, 23, 29 ... Cylinder, 19 ... Rotating cutter, 22 ... Guide stand, 24 ... Horizontal copying template, 25... Vertical copying template,
26...First copying bar, 27...Second copying bar, 28
...Curved surface.

Claims (1)

[Claims] 1. A turntable mounted on a cart that can move in the X direction, a two-way table that moves in two directions, Y and Z, a cutter support base that is slidably supported on this two-way table in the X direction, and this cutter. A rotary cutter attached to a support base, a vertical copying template erected on a guide base that is interlocked with a two-way table and movable in the Y direction, and a vertical copying template attached to either the guide base or the trolley. A horizontal copying template, a first copying bar attached to the other side facing the horizontal copying template and in contact with the horizontal copying template, and a first copying bar that is integrally connected to the cutter support base and comes into contact with a vertical copying template attached to the guide base. 2. An automatic copying stone processing machine characterized by comprising a copying bar.