KR20210090357A - Method for manufacturing 3-dimensional surface, cut material thereof and cutting device for cutting 3-dimensional surface - Google Patents

Abstract

The present invention relates to a method for manufacturing a three-dimensional curved surface, comprising: a step of preparing block materials; and a step of cutting the block material using a cutting member moving along a curved orbit to produce a cut body, wherein the cut surface of the cut body is formed along a curved orbit with a cross section bent by the cutting member. It is possible to minimize the material being discarded.

Description

A three-dimensional curved surface manufacturing method, a cut body and a three-dimensional curved surface cutting device manufactured by the method TECHNICAL FIELD

The present invention relates to a three-dimensional curved surface cutting method, a cut body manufactured by the method, and a three-dimensional curved surface cutting device. Specifically, it relates to a three-dimensional curved surface manufacturing method for cutting a block material made of a material having a certain internal direction to have a three-dimensional three-dimensional curved surface shape, and a cutting body and a cutting device manufactured by the method. The present invention relates to a three-dimensional curved surface cutting method capable of saving block material and shortening manufacturing time, a cut body manufactured by the method, and a three-dimensional curved surface cutting device.

In general, in a method for manufacturing a three-dimensional curved surface having a three-dimensional three-dimensional curved surface, a cutting body is cut while forming a curved surface by grinding or shaving a block material.

As an example, a conventional method of manufacturing a three-dimensional three-dimensional curved surface when the block material, which is the object to be cut, is wood will be described.

First, referring to Fig. 1 (a), after fixing the wood, which is the block material 10, on the lathe, when the wood is rotated by the rotation of the machining shaft, the curved surface is cut using a blade 3a to manufacture a cut body. A method of cutting the wood using the blade 3a on the rotating wood is a wood turning technique.

Referring to FIG. 1 ( b ), a cut body having a curved surface is manufactured by fixing the wood, which is the block material 10 , and grinding it step by step using a rotating drill bit 3b .

In general, when the block material 10 of a rectangular parallelepiped shape is cut or ground to make a three-dimensional three-dimensional curved cut body, the amount of material removed is greater than that of the manufactured cut body. This manufacturing method has a problem in that a lot of time and materials are consumed.

Referring to FIG. 1 (c), as in (ii), as a general cutting method of chamfering or grinding the block material 10 in order to manufacture the plate-shaped cut body 1 with a wide mouth shown in (i) Two cut bodies 1 can be manufactured. However, if cut in the curved shape of the cut body 1, as in (iii), six cut bodies 1 are manufactured from the block material 10 that can manufacture two cut bodies 1 by a general cutting method can do.

As a conventional three-dimensional curved surface manufacturing method, there is a method of molding a planar thin wood by applying heat and pressure to a desired mold, but it takes a lot of time, and there is a problem in that an adhesive is used or the grain direction is changed.

Also, when making a round bowl shape with a material that cannot be molded by heat or pressure, such as jewelry, it is manufactured by pecking out and polishing a cuboidal gem coating, but there is a problem in the amount of wasted gems.

1 (d), the conventional three-dimensional curved surface manufacturing method described so far uses a planar cutting member 3, and the cutting member 3 cuts the block material 10 in a constant cutting direction (A). cut

The cutting member 3 has a straight shape, and the cutting direction A of the cutting member 3 for cutting is perpendicular to the block material 10 or maintains a constant angle with respect to the block material 10 .

Also, even when the cutting member 3 is not in a straight shape, although the position of the cutting member 3 is changed, the angle of the cutting member 3 is hardly changed during the cutting process and is kept constant.

That is, using the conventional three-dimensional curved surface manufacturing method, one side is a convex lens shape and the other side is a concave lens shape, and in order to manufacture a shape in which the upper and lower surfaces are bent in the same direction, the coating film in the form of a cuboid is cut and prepared, and the upper and lower surfaces are prepared. Concave and convex surfaces can be manufactured by shaving while rotating.

Referring to FIG. 1 ( c ), the block material used in this case must be greater than or equal to the length of the manufactured cut body 1 , so the amount of material to be cut and discarded is much greater than the manufactured cut body 1 . there is a problem.

On the other hand, referring to Figure 1 (e), there is a method using a cutting device called a ring saw as a cutting method using a rotating cutting member in the prior art. This cutting method has the advantage of low vibration and convenient operation in place of the file saw, so it is easy to manufacture a plate-shaped object, but there is a problem in that it is not suitable for manufacturing a three-dimensional object.

These conventional three-dimensional curved surface manufacturing methods have a large amount of wasted block material and take a lot of manufacturing time. Therefore, there is a need for a method and apparatus for simply and efficiently manufacturing the cut body.

US Patent No. 2,133,385: X-ray grid and method of making same (1938.10.18) Korean Utility Model Registration No. 20-0443786: Stone curved surface cutting device (2008.12.10) Korean Patent Publication No. 10-2015-0022306: Sapphire curved window processing method (2015.03.04)

The present invention has solved the above problems, and aims to solve the following problems.

In the case of manufacturing a cut body having a three-dimensional three-dimensional curved surface structure, a product can be easily manufactured when the material is put into a mold using heat or pressure. However, a synthetic resin block made by arranging stone, wood, sponge, and primary processed synthetic resin in a certain direction, a metal block made by arranging primary processed metals in a certain direction, or primary processing In the case of a composite material block manufactured by arranging several materials such as one metal or synthetic resin in a certain direction, it is important to cut the block material and process it while maintaining the directionality of the material used to manufacture the cut body.

In this case, it is not a problem if the cut body is processed into a flat plate material, but when the cut body has a three-dimensional curved shape, a block in the form of a cuboid is generally manufactured and parts other than the parts necessary for the final shape are cut. Manufactured by throwing away. At this time, if only one cut body is produced, there is no problem, but in the case of mass production, it is necessary to use materials efficiently to reduce costs.

That is, there is a need to minimize the material discarded in the process of manufacturing the cut body having a three-dimensional three-dimensional curved surface, and to shorten the manufacturing time.

According to an embodiment of the present invention for solving the above problems, a three-dimensional curved surface manufacturing method for efficiently manufacturing a cut body having a three-dimensional curved surface is a curve including a curved shape such as an arc or a parabola centered on a point The cutting body is manufactured using the cutting member moving along the track. According to an embodiment of the present invention, the cut surface of the cut body is to manufacture a cut body in which the cross section made of the shape of the cutting member is formed along a curved track.

As the bent cutting member moves on a curved track, it is cut in a curved shape on one side of the material to make a curved cutting body with a curved cutting surface.

The present invention can provide a method capable of manufacturing a cut body having a three-dimensional curved surface more simply than the conventional method. In addition, the present invention can continuously manufacture a cut body having a partial structure of a spherical surface or a cut body having a bent three-dimensional curved surface, so that the block material that is the object to be cut can be efficiently utilized, and the production time can be shortened. method can be provided.

1 is a view for explaining the prior art.
2 is a view for explaining a method for manufacturing a three-dimensional curved surface according to an embodiment of the present invention.
Figure 3 (a) is a view showing a cut body manufactured according to the prior art, Figure 3 (b) is a view showing a cut body manufactured according to an embodiment of the present invention.
4 is a view showing a cutting member according to various embodiments of the present invention.
FIG. 5 is a view showing a cut body manufactured using a section-type cutting member in which several curves are bent and connected similarly to the cutting member shown in FIG. 4 (d).
6 is a view showing various cutting devices that can be employed in an embodiment of the present invention.
7 is a view showing various cutting devices that can be employed in another embodiment of the present invention.
8 is a view showing various cutting devices that can be employed in another embodiment of the present invention.
9 is a view showing various cut bodies according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art can easily implement them. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification, when a part is "connected" with another part, this includes not only the case of being "directly connected" but also the case of being "electrically connected" with another element interposed therebetween. . In addition, when a part "includes" a certain component, this means that other components may be further included rather than excluding other components unless otherwise stated.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

2 is a view for explaining a method for manufacturing a three-dimensional curved surface according to an embodiment of the present invention.

Referring to FIG. 2A , a block material 10 as a to-be-cut object can be prepared. The block material 10 may be provided in a fixed state by being seated on the seating portion. The cutting member 30 and the guide member 50 may be provided in order to manufacture the cutting bodies 11, 13, and 15 having a three-dimensional three-dimensional curved surface.

The block material 10, which is the object to be cut, includes a patterned stone, wood, sponge, primary processed synthetic resin, a synthetic resin block made by arranging carbon fibers in a certain direction, and a metal block made by arranging primary processed metals in a certain direction. Alternatively, it may be made of a composite material manufactured by arranging various materials such as a primary processed metal or synthetic resin in a predetermined direction. When cutting the block material 10 to manufacture the cut bodies 11, 13, and 15, it is important to process while maintaining the directionality of the material used.

The cutting member 30 may be disposed on one side of the block material 10 to pass through the block material 10 while drawing a curved trajectory including a curved shape such as an arc or a parabola centered at a point. The cutting member 30 may be formed in a bent shape.

The guide member 50 may guide the movement of the cutting member 30 . The guide members 50a and 50b may be formed as a pair, and may be disposed on opposite surfaces of the block material 10 , respectively. The guide member 50 may be formed in a shape in which both ends 53 are bent inward, and the central portion 51 is bent. Specifically, the central portion 51 of the guide member may form a curved track centered at a point. The cutting member 30 may move along the guide member 50 while drawing a curved track centered at a point.

As shown in Fig. 2 (b), when the cutting member 30 formed in a bent shape moves along the guide member 50 in a curved track centered at a point to cut the block material 10, the upper cutting member 11 and a lower cut-out body (15) can be obtained. Here, the upper cut-out body 11 may be formed in a three-dimensional curved structure having a concave bottom surface, and the lower cut-out body 15 may be formed in a three-dimensional curved structure having a convex upper surface. The cut surface of the upper cutting body 11 may be formed along a curved orbit in a cross-section in the shape of the cutting member 30 . The lower cutting body 15 refers to the block material remaining after the cutting member 30 cuts the block material 10 .

As shown in (c) of Figure 2, the cutting member 30 again moves along the guide member 50 in an arc orbit centered at a point to cut the lower cutting body 15, the upper and lower surfaces are bent in the same direction The cut body 13 can be obtained.

In the cross section of the cut body, when a cross section parallel to the moving direction of the cutting member is a horizontal section, and a section perpendicular to the moving direction of the cutting member is a vertical section, the horizontal section and the vertical section of the cutting body 13 are curved surfaces It can be cut to form a shape.

The cut body 13 may be formed along a curved track in which the cut surface is formed in the shape of the cutting member 30 .

As the cutting member 30 formed in a bent shape moves while drawing a curved trajectory centered at a point, the cutting bodies 11 , 13 , and 15 having a three-dimensional curved surface can be manufactured.

In (c) of FIG. 2 , the cutting member 30 may move along the trajectory formed by the guide member 50 . The cutting member 30 can move a section-type track, such as a track in which straight lines are connected to be bent, a track in which straight lines and curves are connected for each section, and a curved track in which various curves are combined for each section, and is formed according to a curve formula It can move along a curved trajectory. That is, the cutting member 30 may move along various trajectories including a curved trajectory centered on a point.

In FIG. 2(c), the cutting member 30 has been described as moving along a curved trajectory formed by the guide member 50, but is not limited thereto, and the cutting member 30 rotates about an axis to form a circular arc' trajectory. It may also include moving along. Various methods of moving the cutting member 30 will be described later.

Thereafter, when the cutting member 30 repeatedly performs movement along a curved trajectory as shown in (c) of FIG. 2 , the cutting body 13 can be mass-produced. In this case, whenever the cutting member 30 moves and the cutting body 13 is formed, the lower cutting member 15 repeatedly moves upward as much as a preset height, or the cutting member 30 is disposed on the guide member ( 50) may move downward by a preset height. Here, the preset height may be set to correspond to the thickness of the cut body 13 .

When the block material 10 is made of synthetic resin, the synthetic resin has elasticity and restoring force, so that the cutting member 30 can turn the block material 10 to manufacture the cut body 13 . At this time, in the case of manufacturing a film having a three-dimensional curved surface, the cutting member 30 may thinly turn on the block material 10 which is a synthetic resin to manufacture the cut body 13 .

On the other hand, when the block material 10 is made of a hard material such as metal, wood, or thick synthetic resin, the cutting member 30 can be moved to secure an empty space while the part through which the cutting member 30 passes, such as a hot wire or a saw blade, is continuously removed. have. As the cutting member 30 moves, the block material 10 is cut and cut while securing a space through which the cutting member 30 passes. When the block material 10 is cut, the block material 10 made of a hard material is bent and broken or wrinkled and folded, crying or breaking. The cut body 13 can be manufactured while preventing it from being supported.

The cutting member 30 may be formed in various ways, such as a structure that cuts like a blade, a structure that burns or melts like a hot wire, a structure that grinds like a saw blade or chain saw, a file, and a diamond wire.

In addition, the cutting member 30 may move only in the direction to be cut like a blade as in the embodiment shown in FIG. 2 , but is not limited thereto, and the cutting member 30 vibrates in place or rotates one wheel. It may also include possible forms. Various shapes of the cutting member 30 will be described later.

Figure 3 (a) is a view showing a cut body manufactured according to the prior art, Figure 3 (b) is a view showing a cut body manufactured according to an embodiment of the present invention.

Referring to FIG. 3 (a), in a conventional cutting method of chamfering or grinding the block material 10 to manufacture the cut body 13 having a three-dimensional three-dimensional curved surface, the block material 10 having a predetermined volume ) to produce two cut bodies 13 .

However, in the case of manufacturing by the method for manufacturing a three-dimensional curved surface of the present invention described in FIG. 2 , the same volume as the block material 10 capable of manufacturing two cut bodies 13 by a conventional cutting method as shown in FIG. 3 ( b ) Twelve cut bodies 13 can be manufactured using the block material 10 of

In the present invention, the cutting body 13 having a three-dimensional three-dimensional curved surface can be continuously manufactured using the curved cutting member 30 moving along a curved trajectory, so that the block material 10 can be used efficiently. .

4 is a view showing a cutting member according to various embodiments of the present invention, FIG. 5 is manufactured using a section-type cutting member in which several curves are bent and connected similarly to the cutting member shown in FIG. 4 (d). It is a figure which shows the cut body.

Referring to (a) and (b) of Figure 4, the cutting member (31, 33) may be formed in a blade shape. The cutting members 31 and 33 are formed in a bent shape, and the cutting member 31 shown in Fig. 4 (a) has a bent structure in one section, and the cutting member 33 shown in Fig. 4 (b). is a curved structure in two sections. The cutting members 31 and 33 may be formed in a shape connected to be bent in a straight line. These cutting members 31 and 33 may be formed by bending or bending a straight cutting member in a predetermined section.

4 (a) and (b), the cutting members 31 and 33 are shown in a curved shape in one section and two sections, but the present invention is not limited thereto, and the cutting members 31 and 33 can be bent in two or more sections. have. In addition, the cutting member may be formed in a form in which a simple straight line is connected to be bent, as well as a form in which a straight line and a curve are connected to be bent. The cutting member in which a straight line and a curved line are connected to each other can be formed by manufacturing a curved blade frame, then manufacturing a thin flat blade and fixing it to the curved blade frame.

Referring to (c) of Figure 4, the cutting member 35 may be formed in a curved shape or annular (not shown) to be described later. The cutting member 35 is formed in a single convex or concave curved shape and can be used to manufacture a cutting body having a smooth three-dimensional curved surface, and the annular cutting member can be vibration cutting or rotation cutting. This cutting member 35 is called a curved cutting member.

Referring to (d) of Figure 4, the cutting member 37 may have a curvature or may be formed in a form in which a plurality of other curves are connected. This cutting member 37 is called a section type cutting member. When the block material is cut using such a cutting member 37, the cut body 13 having a convex surface like the cut body 13 shown in FIG. 5 can be manufactured at once. The cut body 13 shown in FIG. 5 may have a convex portion 13a and a concave portion 13b formed on the cut surface by the section-type cutting member 37 .

A cutting member having a curved shape like the cutting members 31, 33, 35 and 37 shown in Figs. 4 (a), (b), (c) and (d) is called a bent cutting member.

The cutting members 31 , 33 , 35 , and 37 may be made of a hot wire, a saw blade, an ultrasonic cutter, a vibrating saw blade, or a rotary saw blade, which is cut more easily in consideration of the material properties as well as a sharp material. And, since the block material 10 including the metal component is difficult to cut at room temperature, it can be heated or chemically treated to work under conditions that are easy to cut without changing the structure. In addition, even in the case of the block material 10 containing the synthetic resin, it can be heated above room temperature, cooled to a certain temperature, or chemically treated to cut under favorable conditions.

6 is a view showing various cutting devices that can be employed in an embodiment of the present invention.

Referring to FIG. 6 , the cutting device 100 includes a cutting member 130 and is a device for controlling the movement of the cutting member 130 . The cutting body 13 can be manufactured using the cutting device 100 according to the manufacturing method of the cutting body 13 described with reference to FIGS. 2 to 4 .

Referring to FIG. 6A , the cutting device 100 may include a seating part 110 , a cutting member 130 , a guide member 150 , a swing member 170 , and a height adjustment member 190 . have.

The seating part 110 may have a block material 10 as a cut object seated therein, and may fix the seated block material 15 .

The cutting member 130 may be formed in a bent shape. In FIG. 6 , the cutting member 130 is shown in a curved shape, but the present invention is not limited thereto, and may be formed in various curved shapes. The cutting member 130 can cut the block material 10 while moving along an arc trajectory among curved trajectories centered at a point by a guide member 150 and a swing member 170 to be described later.

The guide member 150 is for guiding the movement of the cutting member 130 and may form a circular arc trajectory centered at a point. The guide member 150 may be formed in a bent shape. The cutting member 130 may move in an arc orbit along the guide member 150 and pass through the block material 10 . The guide member 150 may be integrally formed with the seating part 110 .

The swing member 170 may control the movement of the cutting member 130 . One end of the swing member 170 may be connected to the cutting member 130 , and the other end of the swing member 170 may be connected to and fixed to the seating unit 110 . The cutting member 130 may move along an arc trajectory formed by the guide member 150 by the swing member 170 .

The cutting member 130 may be rotatably connected to one end of the swing member 170 within a predetermined angle range. The angle at which the cutting member 130 passes through the lower cutting member 15 may be adjusted by the angle adjusting member 174 formed at one end of the swing member 170 .

The cutting member 130 changes the angle at which the lower cutting member 15 is cut by the angle adjusting member 174 formed at one end of the swing member 170 in the process of moving along the arc trajectory, thereby changing the cutting member 130 . The blade may be moved in the form of a trajectory other than a circular arc to form a three-dimensional curved cut-out body having an aspherical shape.

The swing member 170 may have one end opposite to one end to which the cutting member 130 is connected, and the other end may be connected to the seating part 110 . A portion to which the swing member 170 is attached to the seating unit 110 may be a rotation axis on which the swing member 170 swings left and right. The swing member 170 may rotate in both directions about the other end connected to the seating part 110 . The cutting member 130 may move along a circular arc trajectory centering on a point where the swing member 170 and the seating part 110 are connected by rotation of the swing member 170 .

The swing member 170 may be driven by a driving member (not shown), and specifically, the driving member may be formed of a motor or the like.

The height adjustment member 190 may adjust the spaced distance between the seated block material 10 and the cutting member 130 . The height adjustment member 190 may be disposed inside the seating portion 110 to support the lower end of the block material 10 . The height adjustment member 190 may move the lower cutting member 15 upward when the cutting body 13 is formed by movement along the arc trajectory of the cutting member 130 . The height adjustment member 190 may vertically move the lower cutting member 15 to be disposed a predetermined distance higher than the movement trajectory of the cutting member 130 . A predetermined distance between the lower cutting body 15 and the movement trajectory of the cutting member 130 may be set to correspond to the width of the cutting member 13 .

The height adjustment member 190 may be driven in conjunction with the swing member 170 , and may be driven by a driving member (not shown) such as a motor.

When the block material 10 is cut along the swing member 170 and the bent guide member 150, in the cross section of the manufactured cut body 13, both the horizontal cross section and the vertical section can obtain a cut body bent in the same direction. have.

When the upper part of the block material 10 is cut by the movement of the cutting member 130 and the upper part of the lower cutting body 15 is cut again, the cut body 13 having a three-dimensional curved surface in which the upper surface and the lower surface are bent in the same direction is manufactured can do.

Referring to Figure 6 (b), the cutting device 101 shown in Figure 6 (b) has the same configuration as the cutting device 100 shown in Figure 6 (a). However, in the cutting device 101 shown in FIG. 6 (b), the rotation shaft 172 of the swing member 171 is disposed at an eccentric position from the center of the block material 10, and the guide member 151 is eccentric. It is different from the cutting device 100 shown in Fig. 6 (a) in that it has a structure inclined to the position. In the cutting device 100 shown in FIG. 6 (a), the rotation shaft 172 of the swing member 170 is disposed in the center of the block material 10, and the guide member 150 is the block material 10 as the center. It is different from the cutting device 101 shown in Fig. 6 (b) in that it is symmetrically formed.

The swing member 171 of the cutting device 101 may be connected to an eccentric position from the center of the seating unit 110 . In this case, the guide member 151 may be formed in a shape inclined to one side so that the swing member 171 corresponds to a circular arc trajectory formed around the rotation shaft 172 connected to the seating part 110 . Specifically, the guide member 151 may be asymmetrically formed at the center of the block material 10 .

Such a cutting device 101 can cut the block material 10 asymmetrically eccentric from the center. The cut body 13 manufactured by the cutting device 101 may be formed as a curved cut body having a difference in curvature of a horizontal cross section and a vertical cross section passing through the center.

The cutting devices 100 and 101 in which the cutting member 130 moves along the guide like the cutting devices 100 and 101 shown in FIG. 6 are called orbital cutting devices. The cutting member 130 of the orbital cutting device may use a blade, a hot wire, or a vibrating blade. The orbital cutting device can manufacture a spherical cut body by first cutting along a circular arc track and then turning over the lower cut body 15 and cutting again, and various types of cut bodies can be manufactured by manufacturing various tracks. have.

7 is a view showing various cutting devices that can be employed in another embodiment of the present invention.

Referring to (a) of FIG. 7 , the cutting device 200 may include a seating part 210 , a cutting member 230 , a swing member 270 , and a height adjusting member 290 .

The seating part 210 may have a block material 10 as a cut object seated therein, and may fix the seated block material 10 .

The cutting member 230 may be formed in a bent shape. Although the cutting member 230 is shown in a curved shape in FIG. 7 , the present invention is not limited thereto, and may be formed in various curved shapes. The cutting member 230 can cut the cutting member 230 while moving along a circular arc trajectory about a point by a swing member 270 to be described later.

The swing member 270 may be configured as a swing arm, and may be connected to a height adjustment member 290 disposed perpendicular to the seating part 210 . The swing member 270 may swing left and right around the swing arm shaft 272 formed in a portion connected to the height adjusting member 290 . The cutting member 230 may be connected to one end of the swing arm to cut the block material 10 according to the swing movement of the swing member 270 .

If the point where the imaginary lines perpendicular to the surface of the cutting body or the curved surface of the cutting member 230 meet toward the focal point, the distance between the center connecting the swing arm axis 272 and the center of the cutting member 230 is the focal point. distance, and the cutting member 230 may move along a curved trajectory.

The cutting member 230 is rotatably connected to one end of the swing member 270 to move along a curved trajectory within a predetermined angle range. The cutting member 230 may have an angle at which the lower cutting member 15 is cut by the angle adjusting member 240 formed at one end of the swing member 270 . When the trajectory of the cutting member 230 passing through the block material 100 is changed by adjusting the angle adjusting member 240, the cutting member 230 is the cutting member 230 before the angle adjusting member 240 is adjusted. It is possible to cut the block material 100 with a second curved trajectory that is different from the curved trajectory that will pass through the material.

The swing member 270 may be driven by a driving member (not shown), and specifically, the driving member may be formed of a motor or the like.

The height adjustment member 290 may adjust the spaced distance between the seated block material 10 and the cutting member 230 . The height adjustment member 290 is formed to extend vertically from the seating portion 210 and can move in the vertical direction to move the position of the swing arm shaft 272 .

The height adjustment member 290 may move downward when the cutting body 13 is formed by the reciprocating motion of the cutting member 230 . The height adjustment member 290 may vertically move the cutting member 230 to be disposed a predetermined distance lower than the lower cutting member 15 . A predetermined distance between the lower cutting body 15 and the movement trajectory of the cutting member 230 may be set to correspond to the width of the cutting member 13 .

The height adjustment member 290 may be driven in association with the swing member 270 and may be driven by a driving member (not shown) such as a motor.

In the cross section of the cut body 13 manufactured by the rotational movement of the swing member 270, a cut body in which both the transverse section and the vertical section are bent in the same direction can be obtained.

The cut body 13 manufactured using the swing arm is placed on the concave or convex surface suitable for it, and the convex and concave surfaces are polished with a desired curved abrasive member, respectively, so that the 360° rotational cross section can be equally manufactured.

When the curvature of the cutting member 230 and the movement trajectory of the cutting member 230 coincide, the cutting body 13 having a partial shape of a sphere may be formed. When the angle of the cutting member 230 is adjusted by controlling the angle adjusting member 240 while finely adjusting the distance of the swing member 270 while swinging the height adjusting member 290, the cutting member has an aspherical curved surface. The simple substance 13 can also be manufactured.

When the cutting member 230 moves from the top of the block material 10 and cuts again from the top of the lower cutting member 15, the cutting body 13 having a three-dimensional curved surface in which the upper and lower surfaces are bent in the same direction is manufactured. can do. In particular, if the curvature of a circle whose radius is the distance from the cutting member 230 to the swing arm axis 272 is equal to the curvature of the cutting member, a cut body formed to have a portion of the inner surface of the sphere may be manufactured.

In the cutting device 200 of FIG. 7 (a), the center of the swing arm shaft 272 is located at the center of the lower cutting body 15, so that the cutting body 13 having a symmetrical structure can be manufactured.

Referring to Figure 7 (b), the configuration of the cutting device 201 is the same as the configuration of the cutting device 200 shown in Figure 7 (a). However, there is a difference in that the position of the height adjustment member 291 at which the swing arm shaft 273 of the swing member 271 is located is not located at the center of the seating part 210 but is located at an eccentric position.

Specifically, the center of the swing arm shaft 273 is located at a position where the swing arm shaft 273 of the swing member 271 is eccentric to one side of the lower cutting body 15 . In this case, the cut body 13 formed by the swing motion of the swing member 271 may have an asymmetric structure.

The cutting devices 200 and 201 according to an embodiment of the present invention cut the cutting body 13 having a three-dimensional curved surface bent in various shapes as the position of the swing arm shafts 272 and 273 of the swing member 270 is adjusted. can be manufactured.

Meanwhile, the guide member 150 described with reference to FIG. 6 may be applied to the cutting devices 200 and 201 of FIGS. 7A and 7B . An error due to vibration of the cutting member 230 may be minimized by additionally applying the curved guide member 150 corresponding to the curved track formed by the swing member 270 to the cutting devices 200 and 201 .

The cutting devices 200 and 201 described in FIG. 7 may be referred to as swing-type cutting devices in such a way that the cutting member swings around the swing arm axis 272 to move. The swing-type cutting device 200, 201 may use a cutting member such as a blade, a hot wire, or a vibrating blade. In the swing-type cutting device 200, 201, the cutting member 230 moves while drawing a trajectory close to a circle, and if the angle of the cutting member 230 is adjusted during movement, a movement trajectory that conforms to a specific formula in addition to the spherical shape can be formed. can If the block material 10 rotates based on the axis connecting the center of the upper surface and the center of the lower surface of the block material 10 fixed to the seating part 210 and the cutting member 230 above continues to reciprocate, a more precise swing motion The cut body 13 having a curved surface can be manufactured.

In addition, even when the block material 10 rotates based on an axis connecting the centers of both sides of the block material 10 fixed to the seating portion 210 and the cutting member 230 continues to reciprocate swing motion, it has a precise curved surface. The cut body 13 can be manufactured.

Moreover, the cutting devices 200 and 201 of the present invention can manufacture a cutting body having a precise curved surface even if the block material 10 is fixed and does not rotate.

8 is a view showing various cutting devices that can be employed in another embodiment of the present invention.

Referring to FIG. 8A , the cutting device 300 may include a seating part (not shown), a cutting member 330 , a rotating member 370 and a height adjusting member 390 .

In the seating portion (not shown), the block material 10 , which is an object to be cut, may be seated, and the seated block material 10 may be fixed.

The cutting member 330 may be formed in an annular shape including a spherical band shape including a circle having the same radius as the center of the spherical surface. The cutting member 330 may be rotatably formed with respect to the center of the cutting member 330 . The specific structure of the cutting member 330 will be described later with reference to FIG. 8(b).

The rotating member 370 may rotate the cutting member 330 relative to the block material 10 . Specifically, the rotating member 370 may rotate the cutting member 330 about an axis arranged horizontally with respect to the block material 10 . The cutting member 330 may pass through the block material 10 along a circular arc trajectory about a point by the rotating member 370 .

The rotating member 370 may rotate the cutting member 330 along a virtual rotation axis passing through the center of the cutting member 330 . The distance from the center of the cutting member 330 to the cutting member 330 becomes a focal length, and the cutting member 330 may move along an arc trajectory.

The rotating member 370 may be driven by a driving member (not shown), and specifically, the driving member may be formed of a motor or the like.

The height adjustment member 390 may adjust the spaced distance between the seated block material 10 and the cutting member 330 . The height adjustment member 390 may be formed to extend vertically from the seating portion (not shown), and may move the rotation member 370 in the vertical direction to move the position of the rotation shaft 371 .

The height adjusting member 390 may move the rotating member 370 downward when the cutting body 13 is formed by the rotational movement of the cutting member 330 . The height adjustment member 390 may vertically move the rotating member 370 so that one end of the cutting member 330 is disposed a predetermined distance lower than the lower cutting member 15 . A predetermined distance between the lower cutting body 15 and the movement trajectory of the cutting member 330 may be set to correspond to the width of the cutting member 13 .

The height adjustment member 390 may be driven in association with the rotation member 370 and may be driven by a driving member (not shown) such as a motor.

In the cross section of the cut body 13 manufactured by the rotational movement of the rotating member 370, it is possible to obtain a cut body in which both the horizontal cross section and the vertical section are bent in the same direction.

Referring to (b) of FIG. 8, the cutting member 330 may be formed in an annular structure having a radius of a focal length, or in a spherical band-shaped annular shape including a circle having the same radius as the center of the spherical surface. , the cutting blade 332 may be disposed in the cutting direction of the annular frame. The cutting blade 332 may be disposed on the whole or only a part of the annular frame. When the annular frame has a spherical band shape, the space passing through the block material can be minimized. There may be a cutting blade 332 in one direction of the annular frame, and if it is in both directions, the cutting operation can be performed continuously while reciprocating.

The cutting blade 332 may vibrate clockwise and counterclockwise with respect to the center of the cutting member 330 . The cutting member 330 may vibrate in a vertical direction with respect to the curved track.

The cutting blade 332 may be made of a blade or a saw, and may be rotated about the rotation shaft 371 of the rotating member 370 to manufacture the cutting body 13 . The cutting device 300 in which the cutting member 330 vibrates and moves along a curved trajectory centering on a point is called a vibration cutting type rotary cutting device. The cutting device 300 is a cutting member 330 vibrating while rotating and moving about the rotation shaft 371 passes through the block material 10 to manufacture the cut body 13 . When manufacturing the cut body 13 formed by a portion of the inner surface of the sphere, even if the block material 10 is made of a metal or a hard synthetic resin material, the cut body 13 can be manufactured. In addition, since the cutting member 330 vibrates in place, it is possible to cut the block material 10 even when it is formed in various curved shapes in addition to a circular ring.

In addition, if the block material 10 fixed to the seating portion (not shown) is rotated based on the axis connecting the bottom and the top surface and the cutting member 330 is continuously reciprocally rotated, the cut body 13 having a more precise curved surface can be manufactured. may be

Referring to (c) of FIG. 8 , the cutting member 331 may be formed in an annular shape around the rotation shaft 371 . A cutting blade 332 may be disposed in the cutting direction of the annular cutting member 331 . Unlike the vibration cutting type cutting member 330 of FIG. 8(b), the cutting member 331 of FIG. 8(c) may be configured as a rotation cutting type cutting member.

The cutting blade 332 may rotate clockwise or counterclockwise with respect to the center of the cutting member 331 . The cutting member 331 can cut the block material 10 while passing through the block material 10 while rotating in a direction perpendicular to the circular arc trajectory.

The cutting blade 332 may be made of a knife blade, a saw, or the like, and may be rotated about the rotation shaft 371 of the rotating member 370 while rotating to manufacture the cutting body 13 . The cutting member 331 is rotated and the cutting device 300 moving along a circular arc trajectory centered on a point is called a rotation cutting type rotary cutting device. While the cutting device 300 is rotationally moved about the rotation shaft 371 , the cutting member 331 rotating with respect to the center of the cutting member 331 passes through the block material 10 and manufactures the cutting body 13 . can do.

The cutting member 331 may be rotated about the rotation shaft 371 of the cutting device 300 while rotating to cut a size of a hemisphere or less among some shapes of the inner surface of the sphere. When the cutting device 300 rotates around the rotating shaft 371, the rotating cutting member 331 proceeds while cutting the block material 10, and according to the rotation of the cutting member 331, the working speed can proceed very quickly. , the cutting member 331 does not rotate according to the work contents, and may vibrate in the same manner as the cutting member of FIG. 8 ( b ).

The cutting device 300 can produce a cut body 13 having a three-dimensional curved surface in which the upper surface and the lower surface are bent in the same direction when the block material 10 of the upper surface is cut again in the cross section having a partial shape of the inner surface of the sphere. have.

In addition, if the block material 10 fixed to the seating part (not shown) is rotated based on the axis connecting the bottom and the top surface and the cutting member 331 is continuously reciprocally rotated, the cut body 13 having a more precise curved surface can be manufactured. may be

9 is a view showing various cut bodies according to an embodiment of the present invention.

Referring to FIG. 9 , a cut body manufactured by the method for manufacturing a three-dimensional curved surface of the present invention or cut by a cutting device may be formed in various shapes.

Specifically, when the block material 10 of the rectangular parallelepiped shape is cut once, a lower cut body with a convex cut surface and an upper cut body with a concave cut surface can be formed as shown in FIGS. 9 (a) and (b).

Here, if the lower cut body having a convex cut surface or a lower cut body having a concave cut surface is cut once more in the same way, a cut body in which the cut surface of the cut body is bent in the same direction as shown in FIG. 9(c) can be formed. Such a cut body may have a double-sided cut surface, one side being concave, and one side being convex.

The cut body shown in (d), (e), (f), (g), (h) of FIG. 9 has both sides of the cut body and both sides have convex cut faces, and it is similar to a rugby ball according to the cut position. can be formed. Such a cut body can be manufactured by rotating the cut body with a convex cut surface shown in FIG. 9(a) by 180° and then moving the cutting member again along a curved trajectory centering on one point.

The cut body shown in (i), (j), (k), and (l) of FIG. 9 has both sides of the cut body and both sides have concave cut faces, and both sides are concave like a concave lens depending on the cut position. can be Such a cut body can be manufactured by rotating the cut body with a concave cut surface shown in FIG. 9 (b) by 180° and then moving the cutting member again along a curved trajectory centering on one point.

By using the cutting method and cutting device of the present invention, if a cut body having a three-dimensional curved surface is manufactured from the block material 10, the block material, which is the cut body, can be saved, and a larger amount of the cut body can be manufactured with the same cut body. can

When the cutting method of the present invention is used when manufacturing a bowl using wood or stone, there is an effect of saving a lot of material, and if the jewel is manufactured to have a three-dimensional curved structure, it is advantageous because it is possible to make more large-looking jewels.

Using the manufacturing method of the present invention, a block in which a light transmitting member and a light non-transmitting member are formed side by side in a vertical direction is cut to manufacture a cut body in which the upper surface and the lower surface are bent in the same direction, and rotates based on the center of the cut body If the light-transmitting layer is directed toward one focus or one area, it is possible to simply manufacture an X-ray grid or a viewing angle limiting film that is polished again while being polished to produce a specific three-dimensional curved body and flatten it. That is, the three-dimensional curved surface manufacturing method of the present invention can easily manufacture a structure oriented to one focus or one region, and can save a lot of material and time in mass production.

Claims (19)

preparing a block material; and
Including the step of manufacturing a cut body by cutting the block material using a curved cutting member that moves along a curved trajectory made of a curve,
The cut surface of the cut body, a three-dimensional curved surface manufacturing method, characterized in that the cross section made of a shape bent by the cutting member is formed along the curved track.
According to claim 1,
The cutting member is
A three-dimensional curved surface manufacturing method, characterized in that it is a section-type cutting member or a curved cutting member.
According to claim 1,
The cutting member is
A method for producing a three-dimensional curved surface, characterized in that the block material is cut while passing through the block material while vibrating in a direction perpendicular to the curved track.
According to claim 1,
The cutting member is
A method for manufacturing a three-dimensional curved surface, characterized in that the block material is cut while passing through the block material while rotating in a direction perpendicular to the curved trajectory.
The method of claim 1,
The cutting member is
A method for manufacturing a three-dimensional curved surface, characterized in that the block material is cut into a second curved track formed differently from the curved track by changing a trajectory passing through the block material by an angle adjusting member.
The method of claim 1,
The cutting member is
A three-dimensional curved surface manufacturing method, characterized in that while repeating the movement along the curved trajectory, the distance spaced apart from the block material is adjustable.
3. The method of claim 2,
The curved cutting member is formed in an annular shape,
A three-dimensional curved surface manufacturing method comprising a cutting blade disposed in a cutting direction for cutting the block material.
8. The method of claim 7,
The cutting member is
A three-dimensional curved surface manufacturing method, characterized in that it vibrates or rotates in a direction perpendicular to the curved trajectory.
According to claim 1,
The cutting member is
A three-dimensional curved surface manufacturing method, characterized in that rotational movement about an axis arranged horizontally with respect to the block material.
According to claim 1,
A three-dimensional curved surface manufacturing method, characterized in that the horizontal or vertical cross-section of the cut body is cut to form a curved shape.
A cut body, characterized in that produced by the method of any one of claims 1 to 10.
a seating part on which the block material is seated; and
It includes a curved cutting member for cutting the block material seated in the seating portion,
The cutting member is a cutting device, characterized in that for cutting the block material while drawing a curved trajectory made of a curve.
13. The method of claim 12,
The cutting member is
A cutting device, characterized in that it is a section-type cutting member or a curved cutting member.
13. The method of claim 12,
The cutting member is
Cutting device, characterized in that it moves along the curved trajectory repeatedly within a predetermined angle range centered on the one point.
13. The method of claim 12,
Further comprising a curved guide member for guiding the movement of the cutting member,
The cutting member is a cutting device, characterized in that moving along the guide member.
13. The method of claim 12,
Further comprising a swing member for swinging the cutting member around the one point,
and the swing member is disposed perpendicular to the block material.
13. The method of claim 12,
Further comprising a rotating member for rotating the cutting member along the curved trajectory,
The rotating member rotates the cutting member about an axis arranged horizontally with respect to the block material.
18. The method of claim 17,
The cutting member is a cutting device, characterized in that it vibrates or rotates in a direction perpendicular to the curved track.
13. The method of claim 12,
Cutting device, characterized in that it further comprises a driving member for moving the cutting member along the curved trajectory.

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