KR100624885B1 - Structure for drainning oil of machining center main axis - Google Patents

Structure for drainning oil of machining center main axis Download PDF

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Publication number
KR100624885B1
KR100624885B1 KR1020050056413A KR20050056413A KR100624885B1 KR 100624885 B1 KR100624885 B1 KR 100624885B1 KR 1020050056413 A KR1020050056413 A KR 1020050056413A KR 20050056413 A KR20050056413 A KR 20050056413A KR 100624885 B1 KR100624885 B1 KR 100624885B1
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South Korea
Prior art keywords
oil
hole
spindle
drain
machining center
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KR1020050056413A
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Korean (ko)
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윤진호
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위아 주식회사
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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
    • B23Q11/0078—Safety devices protecting the operator, e.g. against accident or noise
    • B23Q11/0096—Safety devices protecting the operator, e.g. against accident or noise protecting against noise
    • 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
    • B23Q11/126—Arrangements for cooling or lubricating parts of the machine for cooling only
    • B23Q11/127—Arrangements for cooling or lubricating parts of the machine for cooling only for cooling motors or spindles
    • 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
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/02—Driving main working members
    • B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
    • B23Q5/043—Accessories for spindle drives

Abstract

본 발명에 의한 머시닝센터 주축의 냉각유 드레인 구조는 스핀들과 공구를 회전시키기 위한 주축구동모터와, 상기 주축구동모터의 회전력을 전달하는 주축기어를 포함하고, 상기 주축의 내부로 냉각유를 공급하기 위한 오일 탱크가 설치되는 머시닝센터 주축의 냉각유 드레인 구조에 있어서, 상기 오일탱크에 구비된 오일게이지의 상한선 보다 높은 위치에 관통홀이 형성되고, 상기 관통홀에 드레인홀이 연결되며, 상기 관통홀과 드레인홀 사이에 오일이 잔류할 수 있는 공간부를 갖는 드레인홈을 형성되어 주축 내부에서 발생되는 소음이 드레인홈을 통해 외부로 누출되지 않게 되므로 소음발생을 현저하게 저감시키도록 한 것이다.The cooling oil drain structure of the machining center spindle according to the present invention includes a spindle drive motor for rotating the spindle and a tool, and a spindle gear for transmitting the rotational force of the spindle drive motor, and to supply cooling oil to the inside of the spindle. In the cooling oil drain structure of the main shaft of the machining center in which the oil tank is installed, a through hole is formed at a position higher than the upper limit of the oil gauge provided in the oil tank, the drain hole is connected to the through hole, and the through hole A drain groove having a space portion in which oil can remain is formed between the drain hole and the drain hole so that noise generated in the main shaft does not leak to the outside through the drain groove, thereby significantly reducing noise generation.

주축, 오일탱크, 드레인홀 Spindle, Oil Tank, Drain Hole

Description

머시닝센터 주축의 냉각유 드레인 구조{Structure for drainning oil of machining center main axis}Structure for drainning oil of machining center main axis

도 1은 종래 기술에 의한 머시닝센터 주축의 냉각유 드레인 구조도.1 is a cooling oil drain structure diagram of a machining center spindle according to the prior art.

도 2는 도 1의 A-A선 단면도.2 is a cross-sectional view taken along the line A-A of FIG.

도 3은 본 발명에 의한 머시닝센터 주축의 냉각유 드레인 구조도.3 is a cooling oil drain structure diagram of a machining center spindle of the present invention;

도 4는 도 3의 B부 확대도.4 is an enlarged view of a portion B of FIG. 3;

< 도면의 주요 부분에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>

32 ; 스핀들 34 ; 공구32; Spindle 34; tool

40 ; 오일탱크 42 ; 관통홀40; Oil tank 42; Through hole

44 ; 드레인홀 46 ; 드레인홈44; Drain hole 46; Drain groove

본 발명은 머시닝센터 주축의 냉각유 드레인 구조에 관한 것으로, 보다 상세하게는 과주입된 냉각유의 드레인 통로를 통해 주축 내부의 소음이 외부로 누출되지 않도록 한 머시닝센터 주축의 냉각유 드레인 구조에 관한 것이다.The present invention relates to a cooling oil drain structure of a machining center spindle, and more particularly, to a cooling oil drain structure of a machining center spindle such that noise inside the spindle is not leaked to the outside through a drain passage of an over-injected cooling oil. .

일반적으로 각종 절삭 가공방법 또는 비절삭 가공방법으로 금속 또는 비금속 의 소재를 적당한 공구를 사용하여 형상 및 치수로 가공하든가 또는 반소재에 더욱 정밀한 가공을 할 목적으로 사용하는 기계를 공작기계라 한다.In general, a machine tool is used for various cutting or non-cutting methods to process metal or non-metal materials into shapes and dimensions using suitable tools, or to precisely process semi-materials.

상기 공작기계중에서 가공과정중 칩이 발생하는 공작기계를 절삭공작기계라고 부르고, 가공과정중 칩이 발생하지 않는 비절삭 공작기계를 금속가공기계라고 한다.Among the machine tools, the machine tool in which the chip is generated during the machining process is called a cutting machine tool, and the non-cut machine tool in which the chip is not generated during the machining process is called a metal machining machine.

그리고 상기한 절삭공작기계에는 선반, 밀링기, 머시닝 센터, 드릴링기, 보링기, 연삭기, 기어가공기, 특수가공기 등이 있으며, 상기 금속성형기계에는 기계식 프레스, 유압식 프레스, 절단절곡기, 단조기, 인발기 등이 있다.The above cutting machine tools include lathes, milling machines, machining centers, drilling machines, boring machines, grinding machines, gear cutters, special processing machines, and the like. The metal forming machines include mechanical presses, hydraulic presses, cutting machines, forging machines, and drawing machines. And the like.

산업의 전반적인 성력화 추세에 힘입어 절삭 가공분야의 자동화 및 수치제어화도 급속히 진행되고 있다. 아울러 최근에는 그동안 회전형 선반계열과 밀링계열로 양분되어 진행되어 온 공작기계의 수치제어화가 서로 복합적으로 결합되어 다기능 머시닝센터가 출현하였으며, 산업현장의 폭넓은 수요에 힘입어 그 시장은 급속히 확대되고 있다.Thanks to the industry's overall economic growth trend, automation and numerical control in the cutting processing field are also rapidly progressing. In recent years, multi-functional machining centers have emerged by combining the numerical control of machine tools that have been divided into rotary lathe and milling series, and the market is rapidly expanding due to the wide demand of industrial sites. have.

일반적인 머시닝센터는 도 1에 도시한 바와 같이, 주축구동모터(2)의 회전에 의해 주축기어가 회전되어 스핀들과 공구가 회전된다. 이때, 주축 내부에서 발생되는 마찰열은 오일콘(Oil con)(12)으로부터 송출되어 오일유입구(14)를 통해 공급되고 주축 내부를 순환한 후에 오일유출구(16)를 통해 배출되어 다시 오일콘(12)으로 회수되면서 순환되는 냉각유에 의해 냉각된다. 이처럼 냉각유가 순환되는 과정에서 오일의 양은 자연적으로 감소하게 되는데, 이러한 추가공급되는 오일은 오일탱크(20)의 오일주유구(22)를 통해 주입하게 되며 주입되는 오일은 통상적으로 오일게이지(24)의 상한선(Maximun line)(ML)까지 충전된다.In the general machining center, as shown in FIG. 1, the spindle gear is rotated by the rotation of the spindle drive motor 2 so that the spindle and the tool are rotated. At this time, the friction heat generated inside the main shaft is sent out from the oil con (Oil con) (12) is supplied through the oil inlet (14), and after circulating the inside of the main shaft is discharged through the oil outlet (16) again oil cone (12) Cooled by the cooling oil circulated while recovering. As such, the amount of oil naturally decreases in the course of circulating the cooling oil. The additionally supplied oil is injected through the oil filling port 22 of the oil tank 20, and the oil to be injected is typically the oil gauge 24. It is charged up to the maximum line (ML).

그런데 오일탱크(20)의 내부에 오일이 충전된 상태에서 오일콘(12)과 머시닝센터를 연결하는 연결호스(18)에는 소정량의 오일이 잔류하고 있는 상태이기 때문에 실제적으로 장치의 구동시 오일탱크(20)에 충전된 오일은 오일게이지의 상한선(ML)을 넘게 된다.However, since a certain amount of oil remains in the connection hose 18 connecting the oil cone 12 and the machining center while the oil is filled in the oil tank 20, the oil is actually driven when the device is driven. The oil filled in the tank 20 exceeds the upper limit ML of the oil gauge.

따라서 종래에는 도 1 및 도 2에 도시한 바와 같이, 오일게이지(24)의 상한선(ML) 보다 높은 위치에 관통홀(26)이 형성되고, 상기 관통홀과 연결되어 드레인홀(28)이 하방향으로 형성되어 있어 오일탱크에서 오버 플로워된 오일이 관통홀(26)과 드레인홀(28)을 통해 자유낙하되어 외부로 배출된다. 이때, 상기 관통홀(26)의 타단에는 플러그(26a)로 차단되어 오일은 관통홀에서 곧바로 드레인홀로 안내된다.1 and 2, the through hole 26 is formed at a position higher than the upper limit ML of the oil gauge 24, and the drain hole 28 is connected to the through hole. The oil overflowed from the oil tank is freely dropped through the through hole 26 and the drain hole 28 to be discharged to the outside. At this time, the other end of the through hole 26 is blocked by a plug 26a so that the oil is directly guided to the drain hole from the through hole.

그러나 종래 드레인홀(28)은 주축 내부에 연결되어 있기 때문에 주축 구동시 내부의 마찰소음이 드레인홀(28)을 통해서 외부로 누출되어 고주파에 의한 주축 소음이 발생되는 문제가 된다.However, since the conventional drain hole 28 is connected to the inside of the main shaft, friction noise inside when the main shaft is driven leaks to the outside through the drain hole 28, thereby causing a main shaft noise caused by high frequency.

또한, 종래에는 드레인홀(28)을 통해 오일이 원활하게 배출되지 못하는 경우에는 오일이 주축 베어링쪽으로 유입되어 베어링을 소착시켜 장치의 작동이 정지되는 등의 문제가 있다.In addition, conventionally, when the oil is not smoothly discharged through the drain hole 28, the oil is introduced into the spindle bearing to squeeze the bearing to stop the operation of the device.

이와 같은 문제점을 감안하여 안출한 본 발명의 목적은 오일탱크에서 오버플로워되는 통로인 드레인홀을 통해서 주축 내부에서 발생되는 소음이 외부로 누출되 지 않도록 하려는 것이다.The object of the present invention devised in view of the above problems is to prevent the noise generated inside the main shaft from leaking through the drain hole, which is an overflowed passage in the oil tank.

상기의 목적을 달성하기 위한 본 발명에 의한 머시닝센터 주축의 냉각유 드레인 구조는 스핀들과 공구를 회전시키기 위한 주축구동모터와, 상기 주축구동모터의 회전력을 전달하는 주축기어를 포함하고, 상기 주축의 내부로 냉각유를 공급하기 위한 오일 탱크가 설치되는 머시닝센터 주축의 냉각유 드레인 구조에 있어서, 상기 오일탱크에 구비된 오일게이지의 상한선 보다 높은 위치에 관통홀이 형성되고, 상기 관통홀에 드레인홀이 연결되며, 상기 관통홀과 드레인홀 사이에 오일이 잔류할 수 있는 공간부를 갖는 드레인홈을 형성되는 것을 특징으로 한다.The cooling oil drain structure of the machining center spindle according to the present invention for achieving the above object includes a spindle drive motor for rotating the spindle and the tool, and a spindle gear for transmitting the rotational force of the spindle drive motor, In the cooling oil drain structure of the main shaft of a machining center in which an oil tank for supplying cooling oil is installed, a through hole is formed at a position higher than an upper limit of the oil gauge provided in the oil tank, and the drain hole is formed in the through hole. It is connected, characterized in that to form a drain groove having a space portion for the oil can remain between the through hole and the drain hole.

이때, 상기 드레인홈은 S자형으로 형성되어 상기 관통홀에서 상기 드레인홀로 연결되는 구간에서 오일이 잔류하는 공간을 갖게 된다.In this case, the drain groove is formed in an S-shape to have a space in which oil remains in a section connected from the through hole to the drain hole.

이하, 상기한 바와 같은 본 발명의 바람직한 실시예를 첨부도면에 의거하여 보다 상세하게 설명한다.Hereinafter, preferred embodiments of the present invention as described above will be described in more detail with reference to the accompanying drawings.

첨부도면 도 3은 본 발명에 의한 머시닝센터 주축의 냉각유 드레인 구조도이고, 도 4는 도 3의 B부 확대도이다.FIG. 3 is a structure diagram illustrating cooling oil drain of a machining center spindle according to the present invention, and FIG. 4 is an enlarged view of portion B of FIG. 3.

본 발명 실시예는 도 3에 도시한 바와 같이, 스핀들(32)과 공구(34)를 회전시키기 위한 주축구동모터(36)와, 상기 주축구동모터의 회전력을 전달하는 주축기어를 포함하고, 주축의 내부로 냉각유를 공급하기 위한 오일 탱크(40)가 설치된다. As shown in FIG. 3, the present invention includes a spindle drive motor 36 for rotating the spindle 32 and the tool 34, and a spindle gear for transmitting rotational force of the spindle drive motor. An oil tank 40 for supplying cooling oil to the inside of the is installed.

여기서 상기 오일탱크(40)에 구비된 오일게이지의 상한선(ML) 보다 높은 위 치에 관통홀(42)이 형성되고, 상기 관통홀(42)에 드레인홀(44)이 하방향으로 연결되어 있다. Here, the through hole 42 is formed at a position higher than the upper limit ML of the oil gauge 40 provided in the oil tank 40, and the drain hole 44 is connected downward to the through hole 42. .

이때, 상기 관통홀(42)과 드레인홀(44)은 S자형의 드레인홈(46)에 의해 연결된다.At this time, the through hole 42 and the drain hole 44 are connected by an S-shaped drain groove 46.

상기 드레인홈의 형상을 보다 구체적으로 설명하면, 드레인홈(46)은 상기 관통홀(42)과 연결되어 관통홀에 대하여 하방향으로 직교되게 형성된 제1수직부(46a)와, 상기 제1수직부에 대하여 횡방향으로 형성된 제1수평부(46b)와, 상기 제1수평부에 대하여 상방향으로 형성된 제2수직부(46c)와, 상기 제2수직부에 대하여 횡방향으로 형성된 제2수평부(46d)와, 상기 제2수평부에 대하여 하방향으로 형성되어 상기 드레인홀(44)과 연통되는 제3수직부(46e)로 형성된다.In more detail, the shape of the drain groove, the drain groove 46 is connected to the through hole 42 and the first vertical portion (46a) formed to be orthogonal downward with respect to the through hole, and the first vertical A first horizontal portion 46b formed laterally relative to the portion, a second vertical portion 46c formed upwardly relative to the first horizontal portion, and a second horizontal portion formed laterally relative to the second vertical portion. A portion 46d and a third vertical portion 46e formed downwardly with respect to the second horizontal portion and communicating with the drain hole 44 are formed.

따라서 제1수직부(46a) 및 제1수평부(46b)와 제2수직부(46c)에 의하여 일부 오일(O)이 잔류할 수 있는 공간이 형성된다. 이처럼 드레인홈(46)에서 잔류하는 오일(O)에 의하여 주축 내부의 소음이 차단된다.Accordingly, a space in which some oil O may remain is formed by the first vertical portion 46a, the first horizontal portion 46b, and the second vertical portion 46c. As such, the noise inside the main shaft is blocked by the oil O remaining in the drain groove 46.

이와 같이 구성되는 본 발명에 의한 머시닝센터 주축의 냉각유 드레인 구조의 작용을 설명한다.The operation of the cooling oil drain structure of the machining center spindle according to the present invention configured as described above will be described.

주축구동모터(36)의 구동에 의해 스핀들(32)과 스핀들에 장착된 공구(34)가 회전되는데, 이때 주축 내부에서 마찰열이 발생된다. 이러한 마찰열은 오일콘(52)에 의해 오일유입구(54)로 공급되는 오일이 주축 내부로 주입되어 주축의 내부를 순환하면서 냉각시키게 된다. 그리고 주축의 내부를 순환한 오일은 오일유출구(56)를 통해 다시 오일콘(52)으로 회수되어 다시 오일유입구(54)로 보내진다.The spindle 32 and the tool 34 mounted on the spindle are rotated by the drive of the spindle drive motor 36, and friction heat is generated inside the spindle. The frictional heat is cooled by the oil supplied to the oil inlet 54 by the oil cone 52 into the main shaft and circulating the inside of the main shaft. The oil circulated in the main shaft is recovered to the oil cone 52 through the oil outlet 56 and then sent to the oil inlet 54 again.

이와 같이 반복적으로 순환되는 냉각유는 장시간 동안 장치가 구동되면서 자연적으로 감소되므로 냉각유인 오일의 양이 부족한 경우에 오일게이지의 상한선(ML)까지 오일이 충전되는데, 이때 오일의 순환경로인 연결호스(58)에서 잔류하는 오일에 의해 오버 플로워하게 된다. 이때, 오버 플로워하는 오일은 관통홀(42)을 통해 유출되어 드레인홈(46)을 타고 흘러나와 직하방으로 형성되어 있는 드레인홀(44)을 통해 자유낙하되면서 오일탱크(40)의 외부로 배출된다.As the coolant circulated repeatedly is naturally reduced as the device is operated for a long time, when the amount of coolant oil is insufficient, the oil is filled up to the upper limit (ML) of the oil gauge. Overflow by the remaining oil in 58). At this time, the overflowed oil flows out through the through hole 42 and flows out through the drain groove 46 and freely falls through the drain hole 44 which is formed below and discharged to the outside of the oil tank 40. do.

한편, 이처럼 배출되는 오일중 일부 오일(O)은 S자형 드레인홈(46)에 일정량이 항시 잔류하고 있는 상태이므로 주축(36) 내부에서 발생되는 소음이 드레인홈(46)의 오일(O)에 의해 차단되어 드레인홀(44)을 통해 외부로 누출되지 않게 된다.On the other hand, since some of the oil (O) of the discharged oil is always in the S-shaped drain groove 46 a certain amount of residual state generated in the main shaft 36 by the oil (O) of the drain groove 46 It is blocked so that it does not leak to the outside through the drain hole 44.

이상에서 설명한 바와 같이, 본 발명에 의한 머시닝센터 주축의 냉각유 드레인 구조는 주축 내부에서 발생되는 소음이 드레인홈을 통해 외부로 누출되지 않게 되므로 소음발생을 현저하게 저감시키는 효과가 있다.As described above, the cooling oil drain structure of the machining center spindle according to the present invention does not leak to the outside through the drain groove noise generated inside the spindle has an effect of significantly reducing the generation of noise.

또한, 관통홀과 드레인홀을 연결하는 드레인홈이 오일탱크의 내부측에 형성되므로 외관상 미려하게 되고, 외부로 돌출되는 부분이 없기 때문에 간섭발생을 방지하게 된다.In addition, since the drain groove connecting the through hole and the drain hole is formed on the inner side of the oil tank, it is beautiful in appearance and prevents the occurrence of interference since there is no part protruding to the outside.

아울러 관통홀과 드레인홈 및 드레인홀에 의해 오일이 효율적으로 배출되므로 주축 베어링 쪽으로 오일이 흘러들어가지 않게 되어 주축 베어링 등이 오일에 의해 소착되는 등의 품질 저하를 방지하게 된다.In addition, since the oil is efficiently discharged by the through hole, the drain groove, and the drain hole, oil does not flow into the main shaft bearing, thereby preventing the degradation of the quality such as the main shaft bearing being sintered by the oil.

Claims (2)

스핀들과 공구를 회전시키기 위한 주축구동모터와, 상기 주축구동모터의 회전력을 전달하는 주축기어를 포함하고, 상기 주축의 내부로 냉각유를 공급하기 위한 오일 탱크가 설치되는 머시닝센터 주축의 냉각유 드레인 구조에 있어서, A cooling oil drain of the spindle of the machining center including a spindle drive motor for rotating the spindle and the tool, and a spindle gear for transmitting the rotational force of the spindle drive motor, and an oil tank for supplying coolant to the inside of the spindle. In structure, 상기 오일탱크에 구비된 오일게이지의 상한선 보다 높은 위치에 관통홀이 형성되고, 상기 관통홀에 드레인홀이 연결되며, 상기 관통홀과 드레인홀 사이에 오일이 잔류할 수 있는 공간부를 갖는 드레인홈을 형성하는 것을 특징으로 하는 머시닝센터 주축의 냉각유 드레인 구조.A through hole is formed at a position higher than an upper limit of the oil gauge provided in the oil tank, a drain hole is connected to the through hole, and a drain groove having a space portion in which oil can remain between the through hole and the drain hole. Cooling oil drain structure of the machining center spindle, characterized in that formed. 제 1 항에 있어서,The method of claim 1, 상기 드레인홈은 S자형으로 형성되어 상기 관통홀에서 상기 드레인홀로 연결되는 구간에서 오일이 잔류하는 공간을 갖는 것을 특징으로 하는 머시닝센터 주축의 냉각유 드레인 구조.The drain groove is formed in an S-shape cooling oil drain structure of the main shaft of the machining center, characterized in that it has a space in which the oil remains in the section from the through hole to the drain hole.
KR1020050056413A 2005-06-28 2005-06-28 Structure for drainning oil of machining center main axis KR100624885B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114952393A (en) * 2022-06-21 2022-08-30 南通威锋重工机械有限公司 Operation inner cavity with noise reduction function for numerical control plate shearing machine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR940001307A (en) * 1992-06-27 1994-01-11 김광호 Surface Cleaning Device of Semiconductor Substrate
JPH08333784A (en) * 1995-06-09 1996-12-17 Inax Corp Drain trap
KR200289232Y1 (en) 2002-06-24 2002-09-16 아시아리드 주식회사 Draining-trap for floor drain

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR940001307A (en) * 1992-06-27 1994-01-11 김광호 Surface Cleaning Device of Semiconductor Substrate
JPH08333784A (en) * 1995-06-09 1996-12-17 Inax Corp Drain trap
KR200289232Y1 (en) 2002-06-24 2002-09-16 아시아리드 주식회사 Draining-trap for floor drain

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114952393A (en) * 2022-06-21 2022-08-30 南通威锋重工机械有限公司 Operation inner cavity with noise reduction function for numerical control plate shearing machine
CN114952393B (en) * 2022-06-21 2023-09-12 南通威锋重工机械有限公司 Operation inner cavity with silencing and noise reducing functions for numerical control plate shearing machine

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