KR19980026339U - Cutting oil inflow prevention structure of spindle - Google Patents
Cutting oil inflow prevention structure of spindle Download PDFInfo
- Publication number
- KR19980026339U KR19980026339U KR2019960039202U KR19960039202U KR19980026339U KR 19980026339 U KR19980026339 U KR 19980026339U KR 2019960039202 U KR2019960039202 U KR 2019960039202U KR 19960039202 U KR19960039202 U KR 19960039202U KR 19980026339 U KR19980026339 U KR 19980026339U
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- KR
- South Korea
- Prior art keywords
- cutting oil
- spindle
- prevention structure
- drain hole
- inflow prevention
- Prior art date
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Classifications
-
- 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
- B23Q11/08—Protective coverings for parts of machine tools; Splash guards
- B23Q11/0883—Protective coverings for parts of machine tools; Splash guards for spindles, e.g. for their bearings or casings
-
- 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
- B23Q11/12—Arrangements for cooling or lubricating parts of the machine
- B23Q11/121—Arrangements for cooling or lubricating parts of the machine with lubricating effect for reducing friction
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Devices For Machine Tools (AREA)
Abstract
주축의 회전중 회전 부품의 틈새로 유입되는 절삭유의 배출을 주축 보디의 내부로 흘러내리게 하여 칩 및 이물질이 역으로 침투되는 것을 방지하는 주축의 절삭유 유입 방지구조를 제공하는 것으로, 베어링 커버에 절삭유 배출을 위해 형성된 드레인 홀과 연통되도록 주축 보디 내부로 경사지게 관통된 배출공을 형성하고, 상기 밖으로 노출되는 드레인 홀을 플러그로 폐쇄시켜 절삭유가 드레인 홀에서 보디에 형성된 배출공으로 흘러 보디 내의 공간부를 통해 밖으로 배출될 수 있도록 한 것이 특징이다.It provides the cutting oil inflow prevention structure of the spindle to prevent the inflow of cutting oil flowing into the gap of the rotating parts during the rotation of the spindle to the inside of the spindle body to prevent chips and foreign matter from penetrating back. And forming a discharge hole inclinedly penetrating into the main shaft body so as to communicate with the drain hole formed therein, and closing the drain hole exposed outward with a plug so that cutting oil flows from the drain hole to the discharge hole formed in the body and is discharged out through the space in the body. The feature is that it can be.
Description
본 고안은 공작기계(예로, CNC 선반 등)의 주축에 관한 것으로, 특히 주축의 틈새로 유입된 절삭유의 배출을 완벽하게 하여 주축 베어링 등을 보호할 수 있도록 하는 주축의 절삭유 유입 방지구조에 관한 것이다.The present invention relates to a spindle of a machine tool (for example, a CNC lathe, etc.), and more particularly, to a coolant inflow prevention structure of a spindle so as to protect the spindle bearings by completely discharging the cutting oil introduced into the gap of the spindle. .
일반적으로 공작기계에서 공작물의 가공중 공작물의 정도 향상과 공구의 보호를 위해 절삭유가 사용된다. 이러한 절삭유의 사용에 따라 부품의 회전 틈새로 절삭유가 유입되어 주축에 설치된 베어링까지 유입될 수 있다.Generally, coolant is used to improve the accuracy of the workpiece and to protect the tool during the machining of the workpiece. According to the use of such coolant, the coolant may be introduced into the rotational gap of the component and flow into the bearing installed on the main shaft.
도 2에 도시된 바와 같이 척(50)과 조(jaw)(52)에 공작물을 클램핑하여 가공시 절삭유가 분사되면, 회전체인 척(50), 조(52), 척 어댑터(54), 베어링 칼라(56), 메인 스핀들(58)이 회전하면서 절삭유가 비산되게 된다. 이때 비산되는 일부의 절삭유는 상기 부품들의 회전 틈새 사이로 침투하게 된다.As shown in FIG. 2, when cutting oil is injected during machining by clamping a workpiece into the chuck 50 and the jaw 52, the chuck 50, the jaw 52, the chuck adapter 54, which are rotating bodies, As the bearing collar 56 and the main spindle 58 rotate, cutting oil is scattered. At this time, some of the coolant scattered penetrates between the rotation gaps of the parts.
이와 같이 침투된 절삭유를 밖으로 배출해 내기 위해 종래에는 도 2에 도시된 바와 같이 베어링 보호 커버(60)의 하부측 내에 드레인 홀(62)을 천공하여 상기 드레인 홀(62)을 통해 절삭유가 밖으로 배출되도록 구성한 것이다.In order to discharge the cutting oil thus penetrated out, conventionally, as shown in FIG. 2, the drain hole 62 is drilled in the lower side of the bearing protection cover 60 so that the cutting oil is discharged out through the drain hole 62. It is made up.
그런데 상기와 같이 형성된 드레인 홀(62)의 경우에는 밖으로 직접 노출(즉, 척(50)과 직접 노출되는 것을 말함)되어 있기 때문에 역으로 밖에서 드레인 홀(62)을 통해 절삭유 또는 칩이 침투될 수 있는 문제점을 가지고 있다. 실제로 척(50)에 있는 공작물을 에어로 청소할 때 이물질 등이 드레인 홀(62)로 침투되어 막히는 경우가 왕왕 발생되고 있는 것이 사실이다.However, since the drain hole 62 formed as described above is directly exposed outside (ie, directly exposed to the chuck 50), cutting oil or chips may penetrate through the drain hole 62 from the outside. I have a problem. In fact, when the workpiece in the chuck 50 is cleaned by air, it is true that foreign matters are infiltrated into the drain hole 62 and blocked.
도 3은 종래의 또다른 절삭유 유입 방지구조를 예시한 것으로, 이는 절삭유의 역침투를 방지하기 위해 상기 드레인 홀(62)측에 추가로 절삭유 보호통 받이( 64)를 설치하고, 이를 볼트(66)로 주축 보디(68)에 고정한 것이다. 이에 따라 드레인 홀(62)을 통해 배출되는 절삭유가 절삭유 보호통 받이(64)를 거쳐 이에 형성된 배출공(64a)으로 빠져 배출되게 하여 절삭유 등의 이물질의 역침투를 방지하도록 한 것이다.FIG. 3 illustrates another conventional cutting oil inflow prevention structure, in which a cutting oil protection barrel receiving 64 is additionally installed on the drain hole 62 side to prevent reverse penetration of the cutting oil, and this is a bolt 66. This is fixed to the main shaft body 68. Accordingly, the cutting oil discharged through the drain hole 62 is discharged into the discharge hole 64a formed through the cutting oil protection barrel receiving 64 so as to prevent reverse penetration of foreign substances such as cutting oil.
그러나 상기의 구조도 절삭유 보호통 받이(64)에 형성된 배출공(64a)이 밖으로 직접 노출되어 있기 때문에 절삭유 등의 이물질의 역침투를 완전하게 방어하지 못하고, 또한 별도의 부품이 추가되는 문제점을 갖고 있다.However, since the discharge hole 64a formed in the cutting oil protection barrel holder 64 is directly exposed to the above structure, it does not completely prevent reverse penetration of foreign substances such as cutting oil, and has a problem in that a separate part is added. .
본 고안은 베어링 커버에 형성된 배출구를 밖으로 직접 노출시키지 않고 절삭유의 드레인을 유도함으로서 절삭유 및 이물질이 역으로 침투되는 것을 방지할 수 있도록 하여 종래의 문제점을 해결하려는 것이다.The present invention is intended to solve the conventional problem by preventing the inflow of cutting oil and foreign matter by inducing the drain of the cutting oil without directly exposing the outlet formed in the bearing cover.
이에 따른 수단으로 베어링 커버에 절삭유 배출을 위해 형성된 드레인 홀과 연통되로록 주축 보디 내부로 경사지게 관통된 배출공을 형성하고, 상기 밖으로 노출되는 드레인 홀을 플러그로 폐쇄시켜 절삭유가 드레인 홀에서 보디에 형성된 배출공으로 흘러 보디 내의 공간부를 통해 밖으로 배출될 수 있도록 한 것이 특징이다.In this way, the bearing cover forms a discharge hole inclinedly penetrating into the main shaft body so as to communicate with the drain hole formed for discharging the cutting oil, and closes the exposed drain hole with a plug so that the cutting oil flows from the drain hole to the body. It is characterized in that the flow to the discharge hole formed to be discharged out through the space portion in the body.
도 1은 본 고안의 주축의 절삭유 유입 방지구조를 예시한 주축의 단면도.1 is a cross-sectional view of the spindle exemplifying a cutting oil inflow prevention structure of the spindle of the present invention.
도 2는 종래 주축의 절삭유 유입 방지구조를 예시한 주축의 단면도.Figure 2 is a cross-sectional view of the spindle exemplifying a cutting oil inflow prevention structure of the conventional spindle.
도 3은 종래 또다른 주축의 절삭유 유입 방지구조를 예시한 주축의 단면도.Figure 3 is a sectional view of the spindle exemplifying a cutting oil inflow prevention structure of another conventional spindle.
도면의 주요 부분에 대한 부호의 설명Explanation of symbols for the main parts of the drawings
10 : 플러그12 : 배출공10 plug 12 discharge hole
60 : 베어링 보호 커버62 : 드레인 홀60: bearing protection cover 62: drain hole
68 : 주축 보디68a : 공간부68: spindle body 68a: space part
이하에서 본 고안의 바람직한 실시 예를 첨부된 도면에 의거 상세히 설명하기로 한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도 1은 본 고안의 주축의 절삭유 유입 방지구조를 예시한 주축의 단면도를 도시한 것으로, 본 고안의 설명에서 종래와 동일 또는 동등한 부분은 같은 도면부호로 표기하고, 이에 대한 설명은 종래의 설명으로 대신한다.1 is a cross-sectional view of a main shaft illustrating a cutting oil inflow prevention structure of the main shaft of the present invention, the same or equivalent parts in the description of the present invention are denoted by the same reference numerals, and the description thereof is a conventional description Instead.
도시된 바와 같이 베어링 보호 커버(60)에 다수 형성된 드레인 홀(62)중 밖으로 직접 노출되는 드레인 홀(62a)들은 플러그(10)로 폐쇄하고, 나머지 주축 보디(68) 측으로 형성된 드레인 홀(62b)을 개방하여 주축 보디(68)에 경사지게 관통된 배출공(12)과 연통되도록 구성한 것이다.As shown, the drain holes 62a directly exposed out of the plurality of drain holes 62 formed in the bearing protection cover 60 are closed by the plug 10 and the drain holes 62b formed toward the remaining spindle body 68 side. It is configured to open and communicate with the discharge hole 12 penetrated inclined to the main body body 68.
상기와 같이 구성된 본 고안에 의하면 척(50), 조(52), 척 어댑터(54), 베어링 칼라(56), 메인 스핀들(58)이 회전하면서 절삭유가 비산되면서 일부가 상기 부품들의 회전 틈새 사이로 침투하여 베어링 보호 커버(60)의 하부측에 형성된 드레인 홀(62)로 유입되면 개방된 드레인 홀(62b)과 이와 연통된 배출공(12)을 통해 밖으로 배출되게 된다. 이때 절삭유의 배출은 경사진 배출공(12)에 의해 보디(68)의 내부에 형성되는 공간부(68a)를 통해 배출되기 때문에 상기 배출공(12)이 밖으로 직접 노출되지 않게 된다. 따라서 종래처럼 절삭유 및 이물질이 역침투되는 것을 완전하게 차단할 수 있게 되는 것이다.According to the present invention configured as described above, while the chuck 50, the jaw 52, the chuck adapter 54, the bearing collar 56, the main spindle 58 rotates and the coolant is scattered, some of the parts are rotated between the rotating gaps of the parts. When it penetrates and flows into the drain hole 62 formed at the lower side of the bearing protection cover 60, it is discharged out through the open drain hole 62b and the discharge hole 12 communicating with it. At this time, the discharge of the cutting oil is discharged through the space portion 68a formed inside the body 68 by the inclined discharge hole 12 so that the discharge hole 12 is not directly exposed to the outside. Therefore, it is possible to completely block the reverse penetration of the cutting oil and foreign matter as in the prior art.
이상에서 설명한 바와 같이 본 고안은 회전체의 틈새 사이로 유입된 절삭유가 더 이상 침투하지 못하고 밖으로 배출될 수 있게 하는 드레인 홀을 보디 내부로 연통하여 절삭유가 보디의 공간부를 통해 배출되도록 함으로서 종래처럼 절삭유의 배출이 직접 노출되지 않아 공작물의 가공중 또는 공작물의 청소중에 절삭유 및 이물질의 역침투를 완전히 차단하는 효과를 갖는 것이다.As described above, the present invention communicates the drain hole through which the cutting oil introduced between the gaps of the rotating body can no longer penetrate and be discharged out of the body to allow the cutting oil to be discharged through the space portion of the body, thereby reducing the cutting oil. Since the discharge is not directly exposed, it has the effect of completely blocking the reverse penetration of cutting oil and foreign materials during the processing of the workpiece or during the cleaning of the workpiece.
주축의 회전중 회전 부품의 틈새로 유입되는 절삭유의 배출을 주축 보디의 내부로 흘러내리게 하여 칩 및 이물질이 역으로 침투되는 것을 방지하는 주축의 절삭유 유입 방지구조를 제공하는 것이다.It is to provide a cutting oil inflow prevention structure of the spindle to prevent the inflow of the cutting oil flowing into the gap of the rotating part during the rotation of the spindle to the inside of the spindle body to prevent the chip and foreign matter from penetrating back.
Claims (1)
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KR2019960039202U KR19980026339U (en) | 1996-11-08 | 1996-11-08 | Cutting oil inflow prevention structure of spindle |
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KR2019960039202U KR19980026339U (en) | 1996-11-08 | 1996-11-08 | Cutting oil inflow prevention structure of spindle |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101346522B1 (en) * | 2007-11-28 | 2013-12-31 | 두산인프라코어 주식회사 | Auto drain assembly for draining inflow cutting oil in Milling turret |
-
1996
- 1996-11-08 KR KR2019960039202U patent/KR19980026339U/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101346522B1 (en) * | 2007-11-28 | 2013-12-31 | 두산인프라코어 주식회사 | Auto drain assembly for draining inflow cutting oil in Milling turret |
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