WO2023101032A1

WO2023101032A1 - Vibratory cutting apparatus for manufacturing fine pattern

Info

Publication number: WO2023101032A1
Application number: PCT/KR2021/017804
Authority: WO
Inventors: 이승준
Original assignee: 이승준
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2023-06-08
Also published as: CN116529005A

Abstract

The present invention relates to a vibratory cutting apparatus for manufacturing a fine pattern and, more specifically, to a vibratory cutting apparatus for manufacturing a fine pattern, the apparatus comprising: a cutting part provided to be able to process the surface of a workpiece; and an oscillating part connected to the cutting part and generating vibrations, wherein the oscillating part vibrates the cutting part which performs cutting processing of the workpiece, so that a pattern can be formed on the surface of the workpiece according to the vibrations. In addition, the present invention has an advantage in that fine pattern processing on the surface of a workpiece can be precisely performed and the responsivity of vibrating cutting blades can be enhanced.

Description

Vibration cutting device for fine pattern production

The present invention relates to a vibration cutting device for producing fine patterns, and more particularly, to a vibration cutting device for producing fine patterns in which a cutting edge is vibrated so that micro pattern processing can be performed on the surface of a workpiece.

In general, in order to add excellent mechanical properties to optical films, functional materials, lenses, etc. to which natural simulation technology is applied, a method of processing micropatterns on the surface of materials is widely used. However, such micro-pattern processing has a problem in that there is a limitation in forming precise micro-patterns in a mold because micro-level or nano-level patterns are recently required.

As a prior art document for solving this problem, Korean Patent Registration No. 10-1170531 discloses a fine processing device for a roll using a cam. However, even in these conventional documents, there is still a problem in that it is difficult to form complex patterns other than two-dimensional shapes because machining proceeds only with vibration in the depth direction of the surface of the workpiece.

The present invention has been made to solve the problems of the prior art as described above, and its purpose is to enable fine patterns of various waveforms to be precisely processed on the surface of a workpiece.

In the vibration cutting device for manufacturing fine patterns according to a preferred embodiment of the present invention, it includes a cutting part provided so that the surface of the workpiece can be machined, and an oscillation part connected to the cutting part and generating vibration, The vibration cutting device for producing fine patterns, characterized in that the oscillating unit vibrates the cutting unit that performs the cutting process on the workpiece so that pattern processing can be performed on the surface of the workpiece according to the vibration.

By means of solving the above problems, the present invention has the effect of allowing the fine pattern processing to be made precisely on the surface of the workpiece.

In addition, the present invention has the effect of stably and variously processing various types of patterns on the surface of the workpiece, such as Lissajous curves and random waveforms, using not only two-dimensional vibration but also complex vibration through throttling vibration.

In addition, the present invention has the effect of allowing the surface machining to proceed at a high speed by providing a spring portion that applies an elastic force to correspond to the vibration direction and quickly recovers the displacement of the cutting edge.

1 is a diagram showing a schematic view of a state in which a vibration cutting device for producing fine patterns according to a first embodiment of the present invention is installed in a roll mold processing machine.

2 is a conceptual diagram showing an example of a driving mechanism according to the structure of a cutting unit according to a first embodiment of the present invention.

3 is a view showing the shape of an elastic hinge part according to a first embodiment of the present invention, (a) is an elastic hinge part provided with both sides concave, (b) is an elastic hinge part provided with one side concave It is a form.

4 is a view showing the shape of a spring part according to a first embodiment of the present invention, where (a) is a spring part in the form of a coil spring and (b) is a view showing a spring part in the form of a leaf spring.

5 is a view showing an example of a structure of a cutting part in which a cutting edge vibrates in a depth direction of a workpiece according to a first embodiment of the present invention.

6 is a view showing the state of a workpiece whose surface is machined by a cutting unit according to a first embodiment of the present invention.

7 is a conceptual diagram illustrating an example of a driving mechanism according to a structure of a cutting unit according to a second embodiment of the present invention.

8 is a view showing an embodiment of the structure of a cutting part in which a cutting edge vibrates in the longitudinal direction of a workpiece according to a second embodiment of the present invention.

9 is a view showing the appearance of a workpiece whose surface is machined by a cutting unit according to a second embodiment of the present invention.

10 is a conceptual diagram showing an example of a driving mechanism according to a structure of a cutting unit according to a third embodiment of the present invention.

11 is a view showing an embodiment of the structure of a cutting part in which a cutting blade vibrates while drawing a trajectory of a pendulum motion according to a third embodiment of the present invention.

12 is a conceptual diagram showing an example of a driving mechanism according to a structure of a cutting unit according to a fourth embodiment of the present invention.

13 is a view showing an embodiment of the structure of a cutting part in which a cutting edge vibrates while drawing a waveform such as a Lissajous curve, a complex waveform, or a random waveform according to a fourth embodiment of the present invention.

14 is a view showing the state of a workpiece whose surface is machined by a cutting unit according to a fourth embodiment of the present invention.

The terms used in this specification will be briefly described, and the present invention will be described in detail.

The terms used in the present invention have been selected from general terms that are currently widely used as much as possible while considering the functions in the present invention, but these may vary depending on the intention of a person skilled in the art or precedent, the emergence of new technologies, and the like. Therefore, the term used in the present invention should be defined based on the meaning of the term and the overall content of the present invention, not simply the name of the term.

In the entire specification, when a part is said to "include" a certain component, it means that it may further include other components, not excluding other components unless otherwise stated.

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily carry out the present invention. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein.

The specific details, including the problem to be solved, the means for solving the problem, and the effect of the invention with respect to the present invention are included in the embodiments and drawings to be described below. Advantages and features of the present invention, and methods for achieving them, will become clear with reference to the embodiments described below in detail in conjunction with the accompanying drawings.

Hereinafter, with reference to the accompanying drawings, a vibration cutting device for producing fine patterns according to the present invention will be described in detail.

Referring to FIGS. 1 to 6, the vibration cutting device for manufacturing fine patterns according to a first preferred embodiment of the present invention includes a cutting part 200 provided so that the surface of a workpiece 50 can be machined, and the cutting It is connected to the unit 200 and includes an oscillation unit 300 generating vibrations. In addition, the oscillating unit 300 causes the cutting unit 200 to perform cutting on the workpiece 50 to vibrate so that the surface of the workpiece 50 can be patterned according to the vibration.

First, the cutting part 200 and the oscillating part 300 are processed to which fine pattern processing according to vibration can be applied, such as a roll mold machine, a lens mold machine, a shaper, a planer, a slotter, a lathe, a turning machine, a CNC machine, and an ultrasonic machine. It is installed on the device 100. As an example, referring to FIG. 1 , the workpiece 50 may be axially rotated by being bound to a processing device 100 provided like a roll mold processing machine, and the cutting unit 200 and the oscillation unit 300 may rotate the workpiece It is installed adjacent to (50) so that the workpiece (50) can be processed. That is, the cutting part 200 and the oscillating part 300 can be used in various fields where fine pattern processing through vibration can be applied. In addition, the processed product 50 is made of a material that requires surface processing to be used for lenses or functional materials. In addition, the surface processing by the vibration cutting device for producing fine patterns according to the present invention is processing of fine patterns by vibration such as sine waves, complex waveforms, and Lissajous curves on the surface of the workpiece 50, and the surface of the product technology can be applied.

Next, the cutting part 200 is vibrated at high speed by the oscillating part 300 so that a fine pattern can be processed on the surface of the workpiece 50 according to the vibration. In more detail, the cutting part 200 has a cutting edge provided at one end so that the workpiece 50 can be cut, and a cutting edge 210 that can be vibrated by the oscillation part 300, the cutting edge ( 210) includes an elastic hinge part 220 provided to bind, and a spring part 230 connected to the other side of the cutting edge 210.

The cutting edge 210 is disposed perpendicular to the surface of the workpiece 50 and one side is fixed by the elastic hinge part 220 .

In addition, the elastic hinge part 220 fixes the cutting edge 210 and elastically deforms when a force is applied so that the cutting edge 210 can be vibrated. In particular, referring to FIG. 3, the elastic hinge part 220 has both sides provided concavely as shown in (a) of FIG. 3, one side provided flat and the other side concave as shown in (b). It may be provided in a prepared form.

At this time, the elastic hinge portion 220, such as the form shown in FIG. 3 (a), allows the same elastic force to be applied to both sides when bent. In addition, the elastic hinge portion 220, such as the form shown in FIG. 3 (b), allows a greater elastic force to be applied when bent upward than when bent downward. In addition, the elastic hinge part 220 allows the vibration direction of the cutting blade vibrated by the oscillation part 300 to be guided. For example, referring to FIG. 2 , the elastic hinge part 220 fixes both sides of the cutting blade 210 so that the cutting blade 210 can only vibrate upward and downward. That is, the elastic hinge part 220 limits the movable direction of the cutting blade 210 so that the vibration direction of the cutting blade 210 can be guided.

In addition, the spring part 230 serves to increase the restoration speed of the cutting blade 210 by applying an elastic force corresponding to the vibration of the cutting blade 210 . For example, referring to FIG. 2 , the spring part 230 is provided between lower ends of both sides of the cutting blade 210 and the upper processing device 100 . In addition, the spring part 230 applies an elastic force downward when the cutting edge 210 is transferred upward by the oscillation part 300, and applies an elastic force upward when the cutting edge 210 is transferred downward. In this way, the displacement of the cutting edge 210 can be quickly restored. In this case, the spring part 230 may be provided in a coil shape as shown in FIG. 4 (a) or in a leaf spring shape as shown in FIG. 4 (b). The spring part 230 provided in the form of a leaf spring allows elastic force to be easily applied in one direction, and the spring part 230 provided in the form of a coil spring allows elastic force to be easily applied in both directions. .

Next, the oscillation unit 300 is provided at the lower end of the cutting blade 210 to generate vibration, and the elastic hinge unit 220 fixes both side surfaces of the cutting blade 210, so that the cutting blade ( 210) to make reciprocating linear motion.

That is, the cutting part 200 is vibrated by the oscillation part 300 to reciprocate linearly toward the centrifugal direction of the workpiece 50, so that the surface of the workpiece 50 can be machined in the depth direction.

Hereinafter, in the vibration cutting device for manufacturing fine patterns according to the first embodiment of the present invention, the cutting edge 210 is vibrated in the depth direction of the workpiece 50 and the workpiece 50 is cut. 200) and the structure of the oscillator 300 will be described.

First, referring to (a) of FIG. 5 , the spring portion 230a provided in the form of a leaf spring is connected to the processing device 100 from both sides of the cutting blade 210 . In addition, the elastic hinge portion 220a, both of which are concave, is disposed below the spring portion 230a and is connected to the processing device 100 from both sides of the cutting blade 210. In addition, the oscillation unit 300 is provided at the lower end of the cutting edge 210 and vibrates.

And, looking at (b) of FIG. 5, the spring part 230b provided in the form of a leaf spring is connected to the processing device 100 from both sides of the cutting edge 210b. In addition, the elastic hinge part 220b, both of which are concave, is disposed above the spring part 230b and is connected to the processing device 100 from both sides of the cutting blade 210. In addition, the oscillation unit 300 is provided at the lower end of the cutting edge 210 and vibrates.

And, looking at (c) of FIG. 5, the elastic hinge part 220b provided with both sides concave is connected to the processing device 100 from both sides of the cutting edge 210. In addition, the spring part 230c provided in the form of a coil is provided in a form surrounding the oscillation part 300. In addition, the oscillation unit 300 is provided at the lower end of the cutting edge 210 and vibrates.

That is, according to the structure of the cutting part 200 and the oscillating part 300 shown in FIG. 5, the cutting edge 210 can vibrate in the depth direction of the workpiece 50 by guiding the direction of vibration, Restoration speed according to vibration can be increased by the spring part 220 . That is, the elastic hinge part 220 fixes both sides of the cutting edge 210 so that the cutting edge 210 can vibrate in the depth direction of the surface of the workpiece. At this time, the surface of the workpiece 50 may be processed as shown in FIG. 6 by the cutting part 200 of the first embodiment.

Hereinafter, in the vibration cutting device for manufacturing fine patterns according to the second embodiment of the present invention, the cutting edge 410 is vibrated in the longitudinal direction of the workpiece 50 and the workpiece 50 is cut. An embodiment of the structure of 400 and the oscillator 300 will be described. Therefore, configuration overlapping with the first embodiment uses the description of the first embodiment.

Referring to FIG. 7 , the cutting blade 410 includes a protrusion 411 protruding from the other side surface of the cutting blade 410 . In addition, the elastic hinge part 420 is connected to both side surfaces of the protruding part 411 , and the spring part 430 is provided on the opposite side of the protruding part 411 .

As an example, looking at (a) of FIG. 8, the spring part 430a provided in the form of a leaf spring is perpendicular to the side surface of the cutting edge 410 from one side of the cutting edge 410, the processing device 100 connected to Also, the elastic hinge part 420a is connected to the processing device 100 from both side surfaces of the protruding part 411 . In addition, the elastic hinge part 420a may be additionally provided at the lower end of the cutting blade 410 . And, the oscillation part 300 is connected to the end of the protruding part 411 and vibrates toward the side of the cutting edge 410 .

And, looking at (b) of FIG. 8, the spring part 430b provided in the form of a leaf spring is connected to the processing device 100 from both sides of the protruding part 411. Also, the elastic hinge part 420b is connected to the processing device 100 from both side surfaces of the protruding part 411 . In addition, the elastic hinge part 420b may be additionally provided at the lower end of the cutting blade 410 . And, the oscillation part 300 is connected to the end of the protruding part 411 and vibrates toward the side of the cutting edge 410 .

And, referring to (c) of FIG. 8 , the spring part 430c provided in the form of a coil spring is connected to the end of the protruding part 411 in a form surrounding the oscillating part 300 . Also, the elastic hinge part 420c is connected to the processing device 100 from both side surfaces of the protruding part 411 . In addition, the elastic hinge part 420c may be additionally provided at the lower end of the cutting edge 410 . And, the oscillation part 300 is connected to the end of the protruding part 411 and vibrates toward the side of the cutting edge 410 .

That is, according to the structure of the cutting part 400 and the oscillating part 300 shown in FIG. 8, the cutting edge 210 is guided in the direction of vibration and vibrates left and right, thereby moving in the longitudinal direction of the workpiece 50. can vibrate. That is, the elastic hinge part 420 fixes the lower end and one side of the cutting blade 210 so that the cutting blade 210 can vibrate in the longitudinal direction of the workpiece 50 . At this time, the surface of the workpiece 50 may be processed as shown in FIG. 9 by the cutting part 400 of the second embodiment.

Hereinafter, in the vibration cutting device for manufacturing fine patterns according to the third embodiment of the present invention, the cutting edge 510 is vibrated while drawing a trajectory of a pendulum motion, and the cutting part 500 to cut the workpiece 50 And an embodiment of the structure of the oscillator 300 will be described. Therefore, configuration overlapping with the first embodiment uses the description of the first embodiment.

Referring to FIG. 10 , the elastic hinge part 520 is connected to one side of the cutting edge 510 . In addition, the spring part 530 is disposed on the opposite side of the elastic hinge part 520 and is connected to the side surface of the cutting edge 520 below or above the elastic hinge part 520 . Due to this, the oscillation unit 300 is connected to the side surface of the cutting blade 510 to generate vibration, and the elastic hinge unit 520 fixes one side of the cutting blade 510, thereby causing the cutting blade to (510) can vibrate while drawing the trajectory of the pendulum motion.

For example, referring to (a) of FIG. 11 , a spring portion 530a provided in the form of a leaf spring is connected to the processing device 100 from one lower side of the cutting blade 510 . In addition, the oscillation unit 300 is provided on the other side of the cutting edge 510 corresponding to the opposite side of the spring unit 530a. Also, the elastic hinge part 520a is provided above the oscillating part 300 .

And, looking at (b) of FIG. 11 , the oscillation part 300 is connected to one lower side of the cutting edge 510 . In addition, the spring part 530b provided in the form of a coil spring is connected to the cutting edge 510 in a form surrounding the oscillation part 300 . Also, the elastic hinge part 520a is provided above the oscillating part 300 .

That is, when the oscillation unit 300 is vibrated according to the structure of the cutting unit 500 and the oscillation unit 300 shown in FIG. 11, the central portion of the cutting edge 510 is fixed by the elastic hinge unit 520. The tip of the cutting blade 510 may vibrate while drawing a trajectory of a pendulum motion.

Hereinafter, in the vibrating cutting device for manufacturing fine patterns according to the fourth embodiment of the present invention, the cutting edge 610 is subjected to complex vibration in the x and y-axis directions to produce workpieces such as Lissajous curves and random waveforms according to waveforms. An embodiment of the structure of the cutting part 600 and the oscillation part 300, which enables various types of processing on the surface of (50), will be described. Therefore, configuration overlapping with the first embodiment uses the description of the first embodiment.

The elastic hinge part 620 fixes both side surfaces and the lower end of the cutting blade 610, so that the cutting blade 610 vibrates while drawing trajectories such as Lissajous curves and random waveforms with complex vibration through throttle vibration. make it possible

Referring to FIG. 12 , the cutting edge 610 includes a pair of protrusions 611 protruding from both side surfaces of the cutting edge 610 . In addition, the elastic hinge part 620 includes a pair of first side hinges 621 provided at both ends of the protruding part 611, and a first fixing member 622 connected to the first side hinge 621. ), a pair of second side hinges 623 provided at the upper and lower ends of the first fixing member 622, a first lower hinge 624 provided at the lower end of the cutting edge 610, the first 1 includes a second fixing member 625 connected to the lower hinge 624 and a pair of second lower hinges 626 provided on both sides of the second fixing member 625, respectively. In addition, the spring part 630 is connected to the first side part hinge 621 and is connected to the x-axis spring 631 disposed perpendicular to the cutting edge 610 and the first side part hinge 621 and includes a y-axis spring 632 disposed horizontally with the cutting edge 610.

As an example, looking at (a) of FIG. 13, the x-axis spring 631a is provided in a form embedded inside the processing device 100 and supports the first side hinge 621a. In addition, an x-axis oscillating unit 300a is provided on one surface of the first fixing member 622 . In addition, second side hinges 623a are provided at the upper and lower ends of the first fixing member 622 . In addition, the y-axis spring 632a is provided on the first side hinge 621a in a direction parallel to the cutting edge 610. In addition, a y-axis oscillation unit 300b is provided at the lower end of the second fixing member 625 . In addition, the second lower hinge 626a is provided on both side surfaces of the second fixing member 625 .

In addition, looking at (b) of FIG. 13, the x-axis spring 631b is provided in a form embedded inside the processing device 100 and supports the first side hinge 621b. In addition, an x-axis oscillating unit 300a is provided on one surface of the first fixing member 622 . In addition, second side hinges 623b are provided at the upper and lower ends of the first fixing member 622 . In addition, the y-axis spring 632 is connected to one side of the cutting edge 610 at the top of the first side hinge 621b to provide elastic force in the vertical direction of the cutting edge 610 . In addition, a y-axis oscillation unit 300b is provided at the lower end of the second fixing member 625 . Further, the second lower hinges 626b are provided on both side surfaces of the second fixing member 625 .

And, looking at (c) of FIG. 13, the x-axis spring 631c is provided in a form embedded inside the processing device 100, and supports the first side hinge 621c. In addition, an x-axis oscillating unit 300a is provided on one surface of the first fixing member 622 . In addition, second side hinges 623c are provided at the upper and lower ends of the first fixing member 622 . In addition, the y-axis spring 632 is provided in a form surrounding the y-axis oscillating portion 300b, and provides elastic force in the vertical direction of the cutting edge 610. In addition, a y-axis oscillation unit 300b is provided at the lower end of the second fixing member 625 . Further, the second lower end hinges 626c are provided on both side surfaces of the second fixing member 625 .

That is, when the x-axis oscillating unit 300a vibrates, the cutting edge 610 may vibrate in the longitudinal direction of the workpiece 50 . In addition, when the y-axis oscillator 300b vibrates, the cutting edge 610 may vibrate in the depth direction of the workpiece 50 .

Therefore, according to the vibration patterns of the x-axis oscillating unit 300a and the y-axis oscillating unit 300b, the cutting unit 600 vibrates in various waveforms so that the workpiece 50 can be processed in various patterns. . At this time, the surface of the workpiece 50 may be processed as shown in FIG. 14 by the cutting part 600 of the fourth embodiment.

Therefore, according to the present invention, there is an effect of enabling fine pattern processing to be performed precisely on the surface of the workpiece.

In addition, the present invention has the effect of stably and variously processing various types of patterns on the surface of the workpiece, such as Lissajous curves and random waveforms, by not only two-dimensional vibration but also complex vibration through throttling vibration.

The embodiments described above should be understood as illustrative and not restrictive in all respects, and the scope of the present invention is indicated by the claims to be described later rather than the detailed description, and the meaning and scope of the claims and their equivalents All changes or modified forms derived from the concept should be construed as being included in the scope of the present invention.

[Description of code]

50: workpiece

100: processing device

200: cutting part

210: cutting edge

220, 220a, 220b, 220c: elastic hinge part

230, 230a, 230b, 230c: spring part

300, 300a, 300b: oscillation unit

400: cutting part

410: cutting edge

411: protrusion

420, 420a, 420b, 420c: elastic hinge part

430, 430a, 430b, 430c: spring part

500: cutting part

510: cutting edge

511: protrusion

520, 520a, 520b: elastic hinge part

530, 530a, 530b: spring part

600: cutting part

610: cutting edge

611: protrusion

620: elastic hinge part

621: first side hinge

622: first fixing member

623: second side hinge

624: first lower hinge

625: second fixing member

626: second lower hinge

630: spring part

631: x-axis spring

632: y-axis spring

Claims

A cutting portion provided so that the surface of the workpiece can be machined; and

It includes; an oscillation unit connected to the cutting unit and generating vibration,

The cutting unit is vibrated by the oscillation unit, so that pattern processing can be performed on the surface of the workpiece according to the vibration.
According to claim 1,

the cutting part,

a cutting edge provided with a cutting edge at one end so that the workpiece can be cut, and which can be vibrated by the oscillation unit; and

Including; an elastic hinge portion provided to bind the cutting edge;

The vibration cutting device for producing fine patterns, characterized in that the elastic hinge portion allows the vibration direction of the cutting blade vibrated by the oscillation portion to be guided.
According to claim 2,

the cutting part,

Further comprising a spring portion connected to the other side of the cutting blade,

The vibration cutting device for producing fine patterns, characterized in that the spring unit applies an elastic force corresponding to the vibration of the cutting blade, so that the restoration speed of the cutting blade can be increased.
According to claim 3,

The spring part,

Vibration cutting device for producing fine patterns, characterized in that it is provided in the form of a leaf spring so that elastic force can be easily applied in one direction.
According to claim 3,

The spring part,

Vibration cutting device for producing fine patterns, characterized in that it is provided in the form of a coil spring so that elastic force can be easily applied in both directions.
According to claim 2,

The oscillation part,

It is connected to the end of the cutting edge to generate vibration,

The elastic hinge part,

Vibration cutting device for producing fine patterns, characterized in that by fixing both sides of the cutting blade, the cutting blade can vibrate in the depth direction of the surface of the workpiece.
According to claim 2,

The oscillation part,

It is connected to the side of the cutting edge to generate vibration,

The elastic hinge part,

Vibration cutting device for producing fine patterns, characterized in that by fixing the lower end and one side of the cutting blade, so that the cutting blade can be vibrated in the longitudinal direction of the workpiece.
According to claim 2,

The oscillation part,

It is connected to the side of the cutting edge to generate vibration,

The elastic hinge part,

Vibration cutting device for manufacturing fine patterns, characterized in that by fixing one side of the cutting blade, the cutting blade can vibrate while drawing a trajectory of pendulum motion.
According to claim 2,

The oscillation part,

It is connected to the side and lower end of the cutting edge to generate vibration,

The elastic hinge part,

Vibration cutting device for fine pattern production, characterized in that by fixing the both side surfaces and the lower end of the cutting blade, the cutting blade can be vibrated while drawing a trajectory such as a Lissajous curve and a random waveform with complex vibration through throttling vibration .
According to claim 2,

The elastic hinge part,

Vibration cutting device for producing fine patterns, characterized in that both sides are provided in a concave form.
According to claim 2,

The elastic hinge part,

Vibration cutting device for producing fine patterns, characterized in that one side is flat and the other side is provided in a concave shape.