KR20010035255A - Wheel-cutter cutting display glass and method making the wheel-cutter - Google Patents
Wheel-cutter cutting display glass and method making the wheel-cutter Download PDFInfo
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- KR20010035255A KR20010035255A KR1020010004056A KR20010004056A KR20010035255A KR 20010035255 A KR20010035255 A KR 20010035255A KR 1020010004056 A KR1020010004056 A KR 1020010004056A KR 20010004056 A KR20010004056 A KR 20010004056A KR 20010035255 A KR20010035255 A KR 20010035255A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
- B24B3/02—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of milling cutters
- B24B3/08—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of milling cutters of profile milling cutters, e.g. of disc type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B57/00—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents
- B24B57/02—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents for feeding of fluid, sprayed, pulverised, or liquefied grinding, polishing or lapping agents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
- B24B9/08—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
- B24D7/18—Wheels of special form
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
Description
본 발명은 초경합금을 원재료로 하여 만들어진 디스플레이등의 고기능 유리를 절단할 때 사용되는 디스플레이 유리 컷팅용 휠커터 및 그 제조방법에 관한 것으로, 전후좌우방향성이 없고 날부의 수명이 극대화된 휠커터를 얻고자함에 목적을 둔 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheel cutter for cutting display glass used when cutting high-performance glass such as a display made of cemented carbide as a raw material, and a method for manufacturing the same. The purpose is to.
일반적으로, LCD(액정화면)등에 사용되는 유리에는 여러가지 종류가 있으며 그 종류에 따라 강도등의 물성의 차이가 있지만 유리라는 재료의 특성상 그 절단방법은 거의 동일하다. 즉, 극단적으로 취성을 갖는 유리를 절단하기 위해서는 유리표면에 흠집을 낸 후 유리면에 대해 수직방향으로 생긴 균열을 발전시키도록 힘을 가하여 순간적으로 파단시키는 방법이 주로 사용되며, 이때, 수평방향으로의 균열을 최대한 억제시키면서 수직방향으로의 균열만을 일정하게 만들어 주도록 흠집을 내는 것이 중요하다.In general, there are various kinds of glass used in LCD (liquid crystal display) and the like, but the physical properties such as strength vary depending on the kind, but the cutting method is almost the same due to the characteristics of the glass material. In other words, in order to cut extremely brittle glass, a method of breaking the glass surface and then instantly breaking it by applying a force to develop a crack generated in a direction perpendicular to the glass surface is used. It is important to scratch the cracks to make only the cracks in the vertical direction constant while minimizing the cracks.
그런데 종래에 있어서의 휠커터는 연삭무늬가 날 중심선에 대하여 수직으로 이루어지지 않기 때문에 일정한 수직균열을 만들어 줄 수 없어 성능이 저하될 뿐만 아니라 날의 수명이 짧아지는 것이다.In the conventional wheel cutter, however, the grinding pattern is not perpendicular to the blade center line, so that it is not possible to create a constant vertical crack, thereby degrading performance and shortening the life of the blade.
도 5a 는 종래 휠커터(100)의 일예를 나타낸 것으로 연삭무늬가 날 중심선 (C)에 대하여 좌우 비대칭성 및 사선모양을 갖고 있는 것으로 이와같은 경우 일정한 수직균열을 만들어 줄 수 없을 뿐만 아니라 좌우방향성을 갖게되는 것이다. 또한 도 5b 와 같은 휠커터(100)는 연삭무늬(101)가 좌우대칭으로 이루어져 있으나 날 중심선(C)에 대하여 수직으로 이루어져 있지 않기 때문에 전후방향(도면에서는 상하방향을 뜻함)으로 방향성때문에 그 성능상의 차이가 발생하게 되는 것이다. 따라서 상기의 2 가지 예의 휠커터(100)는 공히 날의 수명이 상대적으로 짧아질 수 밖에 없게되므로 상당히 예민하고 까다로운 액정디스플레이등에 응용되는 제품의 특성상 바람직하지 못한 것이다.5a shows an example of the conventional wheel cutter 100. The grinding pattern has left and right asymmetry and an oblique shape with respect to the blade center line C. In such a case, it is not possible to make a constant vertical crack as well as the left and right orientation. Will have. In addition, the wheel cutter 100 as shown in FIG. Will cause a difference. Therefore, the wheel cutter 100 of the above two examples is not preferable because of the characteristics of the product that is applied to the liquid crystal display, which is quite sensitive and difficult since the life of the blade can only be relatively shortened.
본 발명은 날 부위의 연삭무늬가 날 중심선에 수직하며 좌우가 균형이 잡힌 휠커터를 제공하고 동시에 그 휠커터의 제조방법을 제공하고자 한 것이다.The present invention seeks to provide a wheel cutter in which the grinding pattern of the blade portion is perpendicular to the center line of the blade and balanced left and right, and at the same time, a method of manufacturing the wheel cutter.
따라서 본 발명의 휠커터에 의하면 연삭무늬를 날 중심선에 대하여 수직한 방향으로 만들어주므로서 사용시 전후좌우방향성이 없고, 날부의 수명이 극대화된 휠커터를 제공받을 수 있는 것으로 이하 그 제조방법 및 제조방법으로 부터 얻어진 휠커터에 대하여 설명한다.Therefore, according to the wheel cutter of the present invention, since the grinding pattern is made in a direction perpendicular to the blade center line, there is no front-back, left-right direction, and the wheel cutter can be provided with the maximum life of the blade. The wheel cutter obtained from the following will be described.
도 1 은 본 발명의 제조방법에 의해 얻어진 휠커터를 나타낸 정면도.1 is a front view showing a wheel cutter obtained by the manufacturing method of the present invention.
도 2a 내지 도 2b 는 본 발명의 휠커터에 수직연삭무늬를 만들기 위한 연삭가공방법에 대한 예시도로서,Figure 2a to 2b is an illustration of a grinding method for making a vertical grinding pattern on the wheel cutter of the present invention,
도 2a 는 평면도이고, 도 2b 는 정면도이며, 도 2c 는 우측면도이다.FIG. 2A is a plan view, FIG. 2B is a front view, and FIG. 2C is a right side view.
도 3 은 본 발명의 휠커터를 가공시 XF축의 중심축과 피가공물의 중심점 및 XR축의 중심축의 위치관계를 나타내는 도이다.3 is a view showing the positional relationship between the center axis of the XF axis, the center point of the workpiece and the center axis of the XR axis when machining the wheel cutter of the present invention.
도 4 는 종래 휠커터의 규격을 나타낸 정면도.Figure 4 is a front view showing the standard of the conventional wheel cutter.
도 5a 및 도 5b 는 종래 휠커터의 연삭무늬를 나타낸 정면도.5a and 5b is a front view showing a grinding pattern of the conventional wheel cutter.
* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings
10 : 휠커터 10a : 피가공물(가공제품)10: wheel cutter 10a: workpiece (processed product)
11 : 연삭무늬 15 : 아바11: grinding pattern 15: abba
16 : 다이아몬드 연마지석 C : 날의 중심선16: diamond grinding wheel C: center line of the blade
도 1 은 본 발명에서 얻어진 휠커터를 나타낸 정면도.1 is a front view showing a wheel cutter obtained in the present invention.
도 2 는 본 발명에 따른 휠커터에 수직 연삭무늬를 만들기 위한 연삭가공방법에 대한 예시도이며,Figure 2 is an illustration of the grinding processing method for making a vertical grinding pattern on the wheel cutter according to the present invention,
도 3 은 본 발명의 휠커터를 가공시 XF축의 중심축과 피가공물의 중심점, XR축의 중심축의 위치관계를 나타낸 도이다.3 is a view showing the positional relationship between the center axis of the XF axis, the center point of the workpiece, and the center axis of the XR axis when machining the wheel cutter of the present invention.
제 1 도에서 도시한 바와같은 휠커터(10)의 중심선(C)에 대하여 수직한 연삭무늬(11)를 만들어 주기 위해서는 다음과 같은 공정에 의해 이루어진다.In order to make the grinding pattern 11 perpendicular to the center line C of the wheel cutter 10 as shown in Figure 1 is made by the following process.
도 2a에서 도시한 바와같이 피가공물(10a)인(실제는 휠커터를 뜻함) 가공해야할 제품(외경 ø2㎜ ~ 외경 ø6㎜)을 주축(Z축)스핀들의 초소형 아바(arbor)(15)에 장착하여 저속으로 회전시킨 후연삭액을 가하면서 공구전방축(XF축)과 공구후방축(XR축)의 고속스핀들에 소경다이아몬드 연마지석(16)(ø3㎜ ~ ø6㎜)을 장착하여 고속회전시키면서 XF축과 XR축이 동시 또는 순차적으로 피가공물쪽으로 진입하면서 지석의 선단면으로 외경각도면을 연삭가공하여준다. 이때, 소망하는 휠커터(10)의 날각도는 X축스핀들의 피가공물에 대한 상대적인 회전각도에 의해서 결졍되어 지는 것으로, 본 발명에서 가장 중요한 포인트인 연삭무늬의 모양(즉, 경사 및 각도, 대칭성등)은 피가공물(10a)과 X축 공구스핀들의 Y축 위치 및 X축 공구스핀들의 수직방향(A축)의 위치관계에 의해서 결정된다. 즉, 도 2A에서 도시한 바와같이 X축 공구스핀들은 피가공물(10a)을 대칭점으로 하여 XF축과 XR축이 서로 점대칭인 위치에 놓여져야 하며, X축에 장착된 다이아몬드 연마지석의 단면에서 각각 상하로 1/4지점이 피가공물(10a)의 각도연삭면의 중심에 위치하여야만 한다. 그리고, 피가공물 (10a)을 중심으로 하여 평면도상의 2 차원적인 위치관계로 볼 때, 도 2b 와 같이 XF축의 중심축-피가공물의 중심점-XR축의 중심축이 완전히 일직선상에 놓여야 한다. 따라서, 상기 2 축(XF축 및 XR축의 중심축)과 1 점(피가공물 중심점)을 포함하는 면에서는 도 3 과 같이 크랭크형상과 같은 위치관계를 갖게 된다.As shown in FIG. 2A, a product to be processed (actually, a wheel cutter), which is the work piece 10a (outer diameter ø2 mm to outer diameter ø6 mm), is placed on the micro-arbor 15 of the spindle (Z-axis) spindles. Rotate at low speed and apply high-speed grinding fluid to the high speed spindles of the tool front axis (XF axis) and the tool rear axis (XR axis) .The small diamond diamond grinding wheel 16 (ø3 mm to ø6 mm) is mounted at high speed. While the XF axis and the XR axis enter the work piece at the same time or sequentially, the outer diameter angle grinding is performed to the end face of the grindstone. At this time, the blade angle of the desired wheel cutter 10 is determined by the rotation angle of the X-axis spindle relative to the workpiece, the shape of the grinding pattern (ie, inclination and angle, symmetry) which is the most important point in the present invention. Etc.) is determined by the Y-axis position of the workpiece 10a and the X-axis tool spins and the positional relationship of the vertical direction (A-axis) of the X-axis tool spins. That is, as shown in FIG. 2A, the X-axis tool spins should be placed at positions in which the XF-axis and the XR-axis are symmetrical with each other as the work piece 10a as a symmetry point, respectively, in the cross section of the diamond grinding wheel mounted on the X-axis. One quarter up and down should be located at the center of the angular grinding surface of the workpiece 10a. In view of the two-dimensional positional relationship in plan view with respect to the workpiece 10a, the center axis of the XF axis-the center point of the workpiece-the center axis of the XR axis should be completely in line as shown in FIG. 2B. Therefore, in the plane including the two axes (the center axis of the XF axis and the XR axis) and one point (the center point of the workpiece), as shown in FIG.
이와같이 피가공물(10a)을 가공하는 경우 날부위의 연삭무늬(11)가 날 중심선(C)에 수직으로 되며 그 무늬(11)는 좌우 균형이 잡힌 상태가 되어 전후좌우방향성이 없어지고 날부 수명도 극대화되는 것이다.When the workpiece 10a is processed in this way, the grinding pattern 11 of the blade portion becomes perpendicular to the blade center line C, and the pattern 11 is left and right balanced, so that the front, rear, left and right directions are lost, and the blade life is also increased. It is maximized.
또한 참고로 원소재의 가공을 살펴보면, 종래 휠커터를 제조하기 위하여는 도 5 와 같은 구성으로 된 휠커터 완성품 형상에 연삭가공여유를 갖도록 편측으로 약 0.1㎜ ~ 0.3㎜ 만큼 치수를 크게한 초경합금 소재를 사용하여 필요한 각부위를 가공하여 완성제품을 제작하였다. 이렇게 제작하게 되면 분말야금법 중 액상소결법으로 만들어지는 초경합금의 제조특성상 초경합금분말을 형상에 맞춰 프레스를 한 후, 최종 소결시에 약 20%의 수축이 일어나게 되고 이때, 초소형의 휠커터소재를 제조하기위해 수축을 정밀하게 제어한다는 것이 대단히 어려운 일이므로 가공여유를 충분히 줄 수 밖에 없었다. 이러한 문제 때문에 이렇게 제작된 원소재는 기준면도 마땅치 않고, 가공여유도 많아서 휠커터를 제작하는데 많은 어려움이 따르게 될 뿐만 아니라, 소재가격도 상대적으로 높을 수 밖에 없다.In addition, when looking at the processing of the raw material for reference, in order to manufacture a conventional wheel cutter, cemented carbide material with a size larger by about 0.1 mm to 0.3 mm on one side to have a grinding margin on the finished shape of the wheel cutter finished as shown in FIG. Using to process the necessary parts to produce a finished product. In this case, after pressing the cemented carbide powder according to the shape of the cemented carbide produced by the liquid sintering method in the powder metallurgy, about 20% of shrinkage occurs during final sintering, and at this time, to manufacture the ultra-small wheel cutter material It was very difficult to precisely control the shrinkage, so it was necessary to give enough processing margin. Because of these problems, the raw materials produced in this way do not have a reference plane, and there are many processing margins, which makes it difficult to manufacture wheel cutters, and the material price is also relatively high.
그러나, 본 발명에서는 휠커터의 소재를 300㎜이상의 파이프형상의 가운데에 구멍이 있는 환봉을 채택함으로써 외경을 저렴한 비용으로 센터레스연마가공을 한 후에 이를 필요한 두께로 절단하여 원소재를 만들어줌으로써 저렴한 비용으로 양질의 휠커터를 만들 수 있는 원소재를 사용하도록 한 것으로 이와같이 가공된 원소재를 이용하여 휠커터를 만드는 것이다.However, in the present invention, by adopting a round bar with a hole in the center of the pipe shape of the wheel cutter 300mm or more, after cutting the outer diameter of the centerless polishing at a low cost to make the raw material by cutting it to the required thickness, low cost It is to use the raw material to make a good quality wheel cutter, and to make a wheel cutter using the processed raw material.
이상 살펴본 바와같이 본원 발명은 날 부위의 연삭무늬가 날 중심선에 대하여 수직으로 되며, 그 무늬는 좌우가 균형잡힌 상태가 되므로 전후좌우방향성이 없고 날부수명도 극대화될 뿐만 아니라 유리의 절단이 보다 용이한 것이다.As described above, in the present invention, the grinding pattern of the blade portion is perpendicular to the blade center line, and the pattern is in a balanced state of right and left, so that there is no front-back, left-right direction, the blade life is maximized, and the glass is more easily cut. will be.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2001-0004056A KR100381713B1 (en) | 2001-01-29 | 2001-01-29 | Wheel-cutter cutting display glass and method making the wheel-cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2001-0004056A KR100381713B1 (en) | 2001-01-29 | 2001-01-29 | Wheel-cutter cutting display glass and method making the wheel-cutter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20010035255A true KR20010035255A (en) | 2001-05-07 |
| KR100381713B1 KR100381713B1 (en) | 2003-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR10-2001-0004056A KR100381713B1 (en) | 2001-01-29 | 2001-01-29 | Wheel-cutter cutting display glass and method making the wheel-cutter |
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| KR (1) | KR100381713B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100602956B1 (en) * | 2005-01-06 | 2006-07-20 | 주식회사 세한텍 | Glass cutter manufacturing method and glass cutter manufacturing apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100602956B1 (en) * | 2005-01-06 | 2006-07-20 | 주식회사 세한텍 | Glass cutter manufacturing method and glass cutter manufacturing apparatus |
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| Publication number | Publication date |
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| KR100381713B1 (en) | 2003-04-26 |
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