KR20230136313A - CBN wheel that provides cutting oil - Google Patents

CBN wheel that provides cutting oil Download PDF

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KR20230136313A
KR20230136313A KR1020220033862A KR20220033862A KR20230136313A KR 20230136313 A KR20230136313 A KR 20230136313A KR 1020220033862 A KR1020220033862 A KR 1020220033862A KR 20220033862 A KR20220033862 A KR 20220033862A KR 20230136313 A KR20230136313 A KR 20230136313A
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flow path
cutting oil
hub
cbn wheel
outer diameter
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KR1020220033862A
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KR102698773B1 (en
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강주원
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강주원
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/10—Arrangements for cooling or lubricating tools or work
    • B23Q11/1015—Arrangements for cooling or lubricating tools or work by supplying a cutting liquid through the spindle
    • B23Q11/1023—Tool holders, or tools in general specially adapted for receiving the cutting liquid from the spindle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/14—Methods or arrangements for maintaining a constant temperature in parts of machine tools
    • B23Q11/145—Methods or arrangements for maintaining a constant temperature in parts of machine tools using a jet of gas or cutting liquid

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

절삭유 공급을 가능하게 하는 CBN 휠이 제공된다. 절삭유 공급을 가능하게 하는 CBN 휠은, 수직부재와 수평부재를 포함하는 허브와, 수평부재에 장착되는 외경부, 및 허브와 외경부 내부에 형성된 유로를 포함한다.A CBN wheel is provided to enable coolant supply. A CBN wheel that enables supply of cutting oil includes a hub including a vertical member and a horizontal member, an outer diameter portion mounted on the horizontal member, and a flow path formed inside the hub and the outer diameter portion.

Description

절삭유 공급을 가능하게 하는 CBN 휠{CBN wheel that provides cutting oil}CBN wheel that provides cutting oil}

본 발명은 절삭유 공급을 가능하게 하는 CBN 휠에 관한 것이다.The present invention relates to a CBN wheel that enables supply of cutting oil.

일반적으로 CBN(Cubic Boron Nitride) 휠은 입방정 질화붕소로 제작한 휠로, 다이아몬드 합성 조건과 유사한 초고압고온 기술에 의해 제조되어 다이아몬드에 다음가는 강도를 가지고 열에 강한 특성이 있으므로 강합금의 연마, 절삭 공구 등으로 널리 이용되고 있다. 즉, 다이아몬드로는 매우 곤란한 강의 연삭에 그 장점을 발휘하고 있다.In general, the CBN (Cubic Boron Nitride) wheel is a wheel made of cubic boron nitride. It is manufactured using ultra-high pressure and high temperature technology similar to diamond synthesis conditions. It has a strength next to diamond and has heat-resistant properties, so it is used for polishing steel alloys, cutting tools, etc. It is widely used. In other words, it is showing its merits in grinding steel, which is very difficult with diamond.

또한, CBN 휠을 이용하여 내열합금강에 대한 Creep Feed Grinding을 수행할 경우, 지용성 절삭유를 연삭이 일어나고 있는 구역에 대량으로 공급해주어야 하나, 단일 공정에서 여러 부위의 다른 형상을 가공할 경우, 각각의 연삭 구역이 달라져 절삭유가 연삭 구역까지 원활하게 공급되지 않으므로 가공물을 냉각시키는데 한계가 있다.In addition, when performing creep feed grinding on heat-resistant alloy steel using a CBN wheel, oil-soluble cutting oil must be supplied in large quantities to the area where grinding is taking place. However, when processing different shapes in several areas in a single process, each grinding Because the area is different, cutting oil is not smoothly supplied to the grinding area, so there is a limit to cooling the workpiece.

또한, 상기 절삭유 공급이 원활하도록 수작업으로 절삭유 노즐의 위치와 방향을 조절해야 하므로 사용이 불편하고, 절삭유 공급 노즐을 조절하는 CNC control 장비를 구입하여야 하는 문제점이 있다.In addition, it is inconvenient to use because the position and direction of the cutting oil nozzle must be manually adjusted to ensure smooth supply of the cutting oil, and there is a problem of having to purchase CNC control equipment to control the cutting oil supply nozzle.

따라서, 이를 해결할 수 있는 기술개발이 필요한 실정이다.Therefore, there is a need to develop technology to solve this problem.

대한민국 등록특허공보 제10-1412825호Republic of Korea Patent Publication No. 10-1412825

본 발명이 해결하고자 하는 과제는 CBN 입자를 이용하여 Creep Feed Grinding 공정을 수행할 때, CBN 휠의 내부에 유로를 형성하여 연삭 구역에 절삭유가 원활하게 공급되도록 하는 절삭유 공급을 가능하게 하는 CBN 휠을 제공함에 있다.The problem that the present invention aims to solve is to create a CBN wheel that enables the supply of cutting oil by forming a flow path inside the CBN wheel to ensure that the cutting oil is smoothly supplied to the grinding zone when performing the creep feed grinding process using CBN particles. It is provided.

또한, CBN 휠 내부의 유로 가공이 가능하도록 CBN 휠을 허브와 외경부로 분리하여 제작하고 열박음으로 조립하여 형성하는 절삭유 공급을 가능하게 하는 CBN 휠을 제공함에 있다.In addition, we provide a CBN wheel that enables the supply of cutting oil by manufacturing the CBN wheel separately into a hub and an outer diameter part to enable flow passage processing inside the CBN wheel and assembling it by shrink fit.

또한, 본 발명의 과제들은 이상에 언급한 과제로 제한되지 않으며, 언급되지 않은 또 다른 기술적 과제들은 아래의 기재로부터 당업자에게 명확하게 이해될 수 있을 것이다.In addition, the problems of the present invention are not limited to the problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the description below.

상기의 과제를 해결하기 위한 일 실시예에 따른 절삭유 공급을 가능하게 하는 CBN 휠은, 수직부재와 수평부재를 포함하는 허브와, 상기 수평부재에 장착되는 외경부, 및 상기 허브와 외경부 내부에 형성된 유로를 포함한다.A CBN wheel that enables supply of cutting oil according to an embodiment to solve the above problem includes a hub including a vertical member and a horizontal member, an outer diameter portion mounted on the horizontal member, and an inner diameter portion inside the hub and the outer diameter portion. Includes the formed flow path.

상기 외경부는 수평부재에 열 박음으로 조립하여 형성될 수 있다.The outer diameter portion may be formed by assembling a horizontal member by shrink fitting.

상기 외경부에 전착층이 형성될 수 있다.An electrodeposited layer may be formed on the outer diameter.

상기 유로는, 상기 허브 내부에 수직으로 관통형성된 제1 유로와, 상기 제1 유로와 연통되도록 허브의 Z축 반대방향 하단부에 수평으로 관통형성된 복수의 제2 유로와, 상기 복수의 제2 유로를 연결하는 제3 유로, 및 상기 제3 유로와 연통되도록 외경부 내부에 관통형성된 제4 유로를 포함할 수 있다.The flow path includes a first flow path vertically penetrating inside the hub, a plurality of second flow paths horizontally penetrating at a lower end of the hub in the opposite Z-axis direction to communicate with the first flow path, and the plurality of second flow paths. It may include a third flow path connecting the flow path, and a fourth flow path formed through the outer diameter portion to communicate with the third flow path.

상기 허브의 Z축 반대방향 저면에 Z축 방향으로 요입형성된 설치공을 더 포함할 수 있다.The hub may further include an installation hole recessed in the Z-axis direction on the bottom surface of the hub in the direction opposite to the Z-axis.

본 발명의 일 실시예에 따른 절삭유 공급을 가능하게 하는 CBN 휠에 의하면, CBN 입자를 이용하여 Creep Feed Grinding 공정을 수행할 때, CBN 휠의 내부에 유로를 형성하여 연삭 구역에 절삭유가 원활하게 공급되도록 함으로써 가공물을 용이하게 냉각시킬 수 있다.According to the CBN wheel that enables the supply of cutting oil according to an embodiment of the present invention, when performing the creep feed grinding process using CBN particles, a flow path is formed inside the CBN wheel to smoothly supply cutting oil to the grinding zone. By doing so, the workpiece can be easily cooled.

또한, CBN 휠 내부의 유로 가공이 가능하도록 CBN 휠을 허브와 외경부로 분리하여 제작하고 열박음으로 조립하여 형성되므로 CBN 휠의 제작이 간편함은 물론 CBN 휠 내부에 유로를 용이하게 형성할 수 있다.In addition, to enable machining of the flow path inside the CBN wheel, the CBN wheel is manufactured by separating it into the hub and the outer diameter and assembling it by shrinking, so the production of the CBN wheel is easy and a flow path can be easily formed inside the CBN wheel.

도 1은 본 발명의 일 실시예에 따른 절삭유 공급을 가능하게 하는 CBN 휠의 사시도이다.
도 2는 본 발명의 일 실시예에 따른 절삭유 공급을 가능하게 하는 CBN 휠의 평면도이다.
도 3은 본 발명의 일 실시예에 따른 절삭유 공급을 가능하게 하는 CBN 휠의 단면도이다.
도 4는 본 발명의 일 실시예에 따른 절삭유 공급을 가능하게 하는 CBN 휠의 작동상태도이다.Figure 1 is a perspective view of a CBN wheel that enables supply of cutting oil according to an embodiment of the present invention.
Figure 2 is a top view of a CBN wheel that enables supply of cutting oil according to an embodiment of the present invention.
Figure 3 is a cross-sectional view of a CBN wheel that enables supply of cutting oil according to an embodiment of the present invention.
Figure 4 is a diagram showing the operating state of a CBN wheel that enables supply of cutting oil according to an embodiment of the present invention.

본 발명의 이점 및 특징, 그리고 그것들을 달성하는 방법은 첨부되는 도면과 함께 상세하게 후술되어 있는 실시예들을 참조하면 명확해질 것이다. 그러나 본 발명은 이하에서 개시되는 실시예들에 한정되는 것이 아니라 서로 다른 다양한 형태로 구현될 것이며, 단지 본 실시예들은 본 발명의 개시가 완전하도록 하며, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 발명의 범주를 완전하게 알려주기 위해 제공되는 것이며, 본 발명은 청구항의 범주에 의해 정의될 뿐이다.The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and will be implemented in various different forms. The present embodiments only serve to ensure that the disclosure of the present invention is complete and that common knowledge in the technical field to which the present invention pertains is not limited. It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims.

이하, 첨부된 도면을 참조하여 구체적인 실시예들에 대해 설명한다.Hereinafter, specific embodiments will be described with reference to the attached drawings.

도 1은 본 발명의 일 실시예에 따른 절삭유 공급을 가능하게 하는 CBN 휠의 사시도이고, 도 2는 본 발명의 일 실시예에 따른 절삭유 공급을 가능하게 하는 CBN 휠의 평면도이며, 도 3은 본 발명의 일 실시예에 따른 절삭유 공급을 가능하게 하는 CBN 휠의 단면도이고, 도 4는 본 발명의 일 실시예에 따른 절삭유 공급을 가능하게 하는 CBN 휠의 작동상태도이다.Figure 1 is a perspective view of a CBN wheel enabling supply of cutting oil according to an embodiment of the present invention, Figure 2 is a plan view of a CBN wheel enabling supply of cutting oil according to an embodiment of the present invention, and Figure 3 is a plan view of the CBN wheel enabling supply of cutting oil according to an embodiment of the present invention. This is a cross-sectional view of a CBN wheel that enables supply of cutting oil according to an embodiment of the invention, and Figure 4 is a diagram showing the operating state of the CBN wheel that enables supply of cutting oil according to an embodiment of the present invention.

도 1 내지 도 4를 참조하면, 일 실시예에 따른 절삭유 공급을 가능하게 하는 CBN 휠(100)은, 허브(110), 외경부(120), 유로(130)를 포함할 수 있다.Referring to FIGS. 1 to 4 , a CBN wheel 100 that enables supply of cutting oil according to an embodiment may include a hub 110, an outer diameter portion 120, and a flow path 130.

허브(110)는 Z축 방향으로 일정길이 형성된 수직부재(111)와, 수직부재(111)의 Z축 반대방향 하단부에서 수평으로 연장된 수평부재(112)를 포함할 수 있다.The hub 110 may include a vertical member 111 formed to have a predetermined length in the Z-axis direction, and a horizontal member 112 extending horizontally from a lower end of the vertical member 111 in the direction opposite to the Z-axis.

외경부(120)는 허브(110)의 수평부재(112)에 장착될 수 있다. 몇몇 실시예에서, 외경부(120)는 수평부재(112)에 열 박음으로 조립하여 형성될 수 있다. 여기서, 열 박음(shrinkage fitting)이란, 철도차량의 타이어 부착 차륜 등에서, 강제(鋼製) 타이어의 내경(內徑)을 윤심(輪心)의 외경보다 약 1.2/1000정도 작게 삭정하여, 가열·팽창시켜 윤심에 끼워 넣는 것을 말할 수 있다.The outer diameter portion 120 may be mounted on the horizontal member 112 of the hub 110. In some embodiments, the outer diameter portion 120 may be formed by assembling the horizontal member 112 by shrink fitting. Here, shrinkage fitting refers to cutting the inner diameter of a steel tire to be about 1.2/1000 smaller than the outer diameter of the wheel core, such as in wheels attached to tires of railroad vehicles, by heating and You can say that it is inflated and inserted into the core.

또한, 몇몇 실시예에서, 외경부(120)에 전착층(electro plating layer)이 형성될 수 있다. 여기서, 전착이란, 전기 분해에 의하여 전극이 석출된 전해질이 그 표면에 달라붙는 것을 말할 수 있다.Additionally, in some embodiments, an electro plating layer may be formed on the outer diameter portion 120. Here, electrodeposition can refer to the electrolyte from which an electrode is deposited by electrolysis sticking to its surface.

유로(130)는 허브(110)와 외경부(120) 내부에 형성되고, 절삭유가 공급될 수 있다. 몇몇 실시예에서, 유로(130)는 제1 유로(131), 제2 유로(132), 제3 유로(133), 및 제4 유로(134)를 포함할 수 있다.The flow path 130 is formed inside the hub 110 and the outer diameter portion 120, and cutting oil can be supplied. In some embodiments, the flow path 130 may include a first flow path 131, a second flow path 132, a third flow path 133, and a fourth flow path 134.

제1 유로(131)는 허브(110) 내부에 Z축 방향인 수직으로 관통형성될 수 있다. 몇몇 실시예에서, 제1 유로(131)는 허브(110)의 수직부재(111) 내부에 관통형성될 수 있다. 몇몇 실시예에서, 제1 유로(131)의 내주면에 절삭유의 이동을 안내하는 이동안내리브를 더 포함할 수 있다. 이동안내리브는 제1 유로(131)의 내주면에 유선형으로 형성되어 절삭유가 유선형으로 흐르면서 원활하게 이동될 수 있다. 또한, 몇몇 실시예에서, 이동안내리브는 경사지게 형성된 제1 유로의 내면에 형성될 수도 있다. 따라서, 절삭유가 제1 유로를 따라 원활하게 공급될 수도 있다.The first flow path 131 may be formed vertically penetrating inside the hub 110 in the Z-axis direction. In some embodiments, the first flow path 131 may be formed through the inside of the vertical member 111 of the hub 110. In some embodiments, the inner peripheral surface of the first flow path 131 may further include a moving guide rib that guides the movement of cutting oil. The moving guide rib is formed in a streamlined shape on the inner peripheral surface of the first flow path 131, so that the cutting oil can move smoothly while flowing in a streamlined shape. Additionally, in some embodiments, the moving guide rib may be formed on the inner surface of the inclined first flow path. Accordingly, cutting oil may be smoothly supplied along the first flow path.

제2 유로(132)는 제1 유로(131)와 연통되도록 허브(110)의 Z축 반대방향 하단부에 수평으로 관통형성될 수 있다. 몇몇 실시예에서, 제2 유로(132)는 허브(110)의 수평부재(112) 내부에 관통형성될 수 있다. 몇몇 실시예에서, 제2 유로(132)는 수평부재(112)에 방사상으로 형성될 수 있다.The second flow path 132 may be formed horizontally through the lower end of the hub 110 in the direction opposite to the Z-axis so as to communicate with the first flow path 131. In some embodiments, the second flow path 132 may be formed through the inside of the horizontal member 112 of the hub 110. In some embodiments, the second flow path 132 may be formed radially in the horizontal member 112.

제3 유로(133)는 제2 유로(132)를 연결하도록 허브(110)의 Z축 반대방향 하단부에 요입형성될 수 있다. 몇몇 실시예에서, 제3 유로(133)는 수평부재(112)의 외주면에 내측으로 요입형성될 수 있다.The third flow path 133 may be recessed at the lower end of the hub 110 in the direction opposite to the Z-axis to connect the second flow path 132. In some embodiments, the third flow path 133 may be recessed inward on the outer peripheral surface of the horizontal member 112.

제4 유로(134)는 제3 유로(133)와 연통되도록 외경부(120) 내부에 관통형성될 수 있다. 몇몇 실시예에서, 제4 유로(134)는 방사상으로 20개를 배치할 수 있다. 다만, 이에 한정되는 것은 아니며, 설계 도면에 따라 다양한 개수로 변경될 수 있다. 또한, 제4 유로(134)는 넓은 연삭 구역에 대응하기 위하여 허브의 수직 방향과 위치를 다르게 배치할 수도 있다. 또한, 몇몇 실시예에서, 제4 유로(134)는 넓은 연삭 구역에 대응하기 위하여 허브의 수직 방향에 적층되게 배치할 수도 있다.The fourth flow path 134 may be formed through the outer diameter portion 120 to communicate with the third flow path 133. In some embodiments, 20 fourth flow paths 134 may be arranged radially. However, it is not limited to this, and the number may be changed depending on the design drawing. Additionally, the fourth flow path 134 may be arranged in a different vertical direction and position of the hub to accommodate a wider grinding area. Additionally, in some embodiments, the fourth passages 134 may be arranged in a stacked manner in the vertical direction of the hub to accommodate a wide grinding area.

또한, 몇몇 실시예에서, 제4 유로(134)는 절삭유가 배출되는 구멍으로 제4 유로(134)의 직경은 전착과정에서 구멍이 막히지 않도록 2mm 이하로 형성될 수 있다.Additionally, in some embodiments, the fourth flow path 134 is a hole through which cutting oil is discharged, and the diameter of the fourth flow path 134 may be formed to be 2 mm or less to prevent the hole from being clogged during the electrodeposition process.

몇몇 실시예에서, 제1 유로(131)의 직경은 제2 유로(132)의 직경보다 크고, 제2 유로(132)의 직경은 제4 유로(134)의 직경보다 크게 형성될 수도 있다. 따라서, 제1 유로(131)를 통해 제2 유로(132) 및 제3 유로(133)를 경유하여 제4 유로(134)로 배출되는 절삭유가 CBN 휠이 연삭하는 구역까지 원활하게 공급됨은 물론 가공물을 용이하게 냉각시킬 수 있다.In some embodiments, the diameter of the first flow path 131 may be larger than the diameter of the second flow path 132, and the diameter of the second flow path 132 may be larger than the diameter of the fourth flow path 134. Therefore, the cutting oil discharged through the first flow path 131, through the second flow path 132 and the third flow path 133, and into the fourth flow path 134 is smoothly supplied to the area where the CBN wheel grinds, as well as the workpiece. can be easily cooled.

몇몇 실시예에서, 절삭유 공급을 가능하게 하는 CBN 휠(100)은 설치공(140)을 더 포함할 수 있다. 설치공(140)은 허브(110)의 Z축 반대방향 저면에 Z축 방향으로 요입형성될 수 있다. 몇몇 실시예에서, 설치공(110) 내주면에 나사산이 형성되어 작업대에 체결하여 고정할 수도 있다.In some embodiments, the CBN wheel 100 that enables supply of cutting oil may further include an installation hole 140. The installation hole 140 may be recessed in the Z-axis direction on the bottom surface of the hub 110 in the direction opposite to the Z-axis. In some embodiments, threads are formed on the inner peripheral surface of the installation hole 110 so that the installation hole 110 can be fastened to a workbench and fixed thereto.

이상 첨부된 도면을 참조하여 본 발명의 실시예들을 설명하였지만, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자는 본 발명의 그 기술적 사상이나 필수적인 특징을 변경하지 않고서 다른 구체적인 형태로 실시될 수 있다는 것을 이해할 수 있을 것이다. 그러므로 이상에서 기술한 실시예들은 모든 면에서 예시적인 것이며 한정적이 아닌 것으로 이해해야만 한다.Although embodiments of the present invention have been described above with reference to the attached drawings, those skilled in the art will understand that the present invention can be implemented in other specific forms without changing its technical idea or essential features. You will be able to understand it. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive.

100: 절삭유 공급을 가능하게 하는 CBN 휠
110: 허브
111: 수직부재
112: 수평부재
120: 외경부
121: 전착층
130: 유로
131: 제1 유로
132: 제2 유로
133: 제3 유로
134: 제4 유로
140: 설치공100: CBN wheel enabling coolant supply
110: hub
111: Vertical member
112: Horizontal member
120: outer circumference
121: Electrodeposition layer
130: Euro
131: 1st Euro
132: Second Euro
133: Third Euro
134: 4th Euro
140: Installer

Claims (5)

수직부재와 수평부재를 포함하는 허브;
상기 수평부재에 장착되는 외경부; 및
상기 허브와 외경부 내부에 형성된 유로를 포함하는 절삭유 공급을 가능하게 하는 CBN 휠.
A hub including a vertical member and a horizontal member;
An outer diameter portion mounted on the horizontal member; and
A CBN wheel that enables supply of cutting oil including a flow path formed inside the hub and the outer diameter.
 제1 항에 있어서,
상기 외경부는 수평부재에 열 박음으로 조립하여 형성되는 절삭유 공급을 가능하게 하는 CBN 휠.
According to claim 1,
A CBN wheel that enables supply of cutting oil, where the outer diameter portion is formed by assembling a horizontal member by shrink fitting.
 제2 항에 있어서,
상기 외경부에 형성되는 전착층을 더 포함하는 절삭유 공급을 가능하게 하는 CBN 휠.
According to clause 2,
A CBN wheel that enables supply of cutting oil, further comprising an electrodeposited layer formed on the outer diameter.
 제1 항에 있어서, 상기 유로는,
상기 허브 내부에 수직으로 관통형성된 제1 유로;
상기 제1 유로와 연통되도록 허브의 Z축 반대방향 하단부에 수평으로 관통형성된 복수의 제2 유로;
상기 복수의 제2 유로를 연결하는 제3 유로; 및
상기 제3 유로와 연통되도록 외경부 내부에 관통형성된 제4 유로를 포함하는 절삭유 공급을 가능하게 하는 CBN 휠.
The method of claim 1, wherein the flow path is:
a first flow path vertically penetrating inside the hub;
a plurality of second flow paths formed horizontally through the lower end of the hub in the direction opposite to the Z-axis to communicate with the first flow path;
a third flow path connecting the plurality of second flow paths; and
A CBN wheel that enables supply of cutting oil including a fourth flow path formed through the inner diameter of the outer diameter portion to communicate with the third flow path.
 제1 항에 있어서,
상기 허브의 Z축 반대방향 저면에 Z축 방향으로 요입형성된 설치공을 더 포함하는 절삭유 공급을 가능하게 하는 CBN 휠.
According to claim 1,
A CBN wheel that enables supply of cutting oil, further comprising an installation hole recessed in the Z-axis direction on the bottom surface of the hub in the direction opposite to the Z-axis.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07276243A (en) * 1994-04-07 1995-10-24 Kurenooton Kk Segment type grinding wheel
KR101412825B1 (en) 2013-12-18 2014-06-27 정세현 Tool holder with cutting oil passage
JP3223433U (en) * 2019-07-16 2019-10-10 憲秀 伊藤 Electroplated grinding wheel

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3223433B2 (en) * 1992-09-29 2001-10-29 横河電機株式会社 Electro-pneumatic positioner

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07276243A (en) * 1994-04-07 1995-10-24 Kurenooton Kk Segment type grinding wheel
KR101412825B1 (en) 2013-12-18 2014-06-27 정세현 Tool holder with cutting oil passage
JP3223433U (en) * 2019-07-16 2019-10-10 憲秀 伊藤 Electroplated grinding wheel

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