KR100341143B1 - Spindle clamping apparatus - Google Patents
Spindle clamping apparatus Download PDFInfo
- Publication number
- KR100341143B1 KR100341143B1 KR1020000000050A KR20000000050A KR100341143B1 KR 100341143 B1 KR100341143 B1 KR 100341143B1 KR 1020000000050 A KR1020000000050 A KR 1020000000050A KR 20000000050 A KR20000000050 A KR 20000000050A KR 100341143 B1 KR100341143 B1 KR 100341143B1
- Authority
- KR
- South Korea
- Prior art keywords
- spindle
- clamping
- coupled
- guide piston
- boring
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/18—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float
- F16K31/20—Actuating devices; Operating means; Releasing devices actuated by fluid actuated by a float actuating a lift valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K25/00—Details relating to contact between valve members and seat
- F16K25/005—Particular materials for seats or closure elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0245—Construction of housing; Use of materials therefor of lift valves with ball-shaped valve members
Abstract
본 발명은 공작기계의 스핀들 클램핑장치에 관한 것으로, 특히 구조가 간단하면서도 부품수가 적어 유지 보수 등이 용이하게 이루어질 수 있게 한 것이다.The present invention relates to a spindle clamping device of a machine tool, and in particular, the structure is simple and the number of parts is small, so that the maintenance and the like can be easily performed.
종래에는 클램핑부의 구조가 복잡히고, 부품수가 많을 뿐만 아니라, 보수시 내부에 깊게 박혀있는 접시 스프링 및 클램프링의 분해가 어렵고 한번 결정된 클램프력은 조절 할 수가 없는 문제점이 있었다.Conventionally, the structure of the clamping part is complicated, and the number of parts is not only large, but it is difficult to disassemble the plate spring and the clamping ring deeply embedded therein during repair, and the clamping force determined once cannot be adjusted.
본 발명은 이를 해소하기 위해서, 주축헤드(3) 내에 회전 가능하게 지지된 밀링 스핀들(1) 내측으로 축방향을 따라 이동 가능한 보링 스핀들(2)이 조립되고, 상기 보링 스핀들(2)에 결합되는 정면 플렌지(7)의 포켓에 내장된 다수개의 스프링(8)에 지지되는 가이드 피스톤(4)은 상기 스프링(8)의 탄성을 보유하게 하고, 가이드 피스톤(4)의 걸이홈(42)에는 등 간격으로 절개된 쇄기형 클램핑 슬리부(5)가 결합되어 상기 가이드 피스톤(4)에 의해 밀링 스핀들(1)의 내면에 형성되는 쐐기형 경사면(12)에 보링 스핀들(2)을 클램핑 시키도록 되고, 가이드 피스톤(4)에 결합되는 클램핑 슬리브(5)에는 키이(6)가 결합되어 회전시 클램핑 슬리브(5)가 한쪽으로 쏠리는 것을 방지하는 구성으로 된 것임.In order to solve this problem, the boring spindle 2 which is axially movable inside the milling spindle 1 rotatably supported in the spindle head 3 is assembled and coupled to the boring spindle 2. The guide piston 4 supported by the plurality of springs 8 embedded in the pockets of the front flange 7 retains the elasticity of the springs 8, and the like in the hook groove 42 of the guide piston 4. The wedge-shaped clamping slip 5 cut at intervals is coupled to clamp the boring spindle 2 to the wedge-shaped slope 12 formed on the inner surface of the milling spindle 1 by the guide piston 4. , The clamping sleeve (5) is coupled to the guide piston (4) is a key (6) is coupled to the configuration to prevent the clamping sleeve (5) from being pulled to one side when rotating.
Description
본 발명은 공작기계의 스핀들 클램핑장치에 관한 것으로, 특히 구조가 간단하면서도 부품수가 적어 유지 보수 등이 용이하게 이루어질 수 있게 한 것이다.The present invention relates to a spindle clamping device of a machine tool, and in particular, the structure is simple and the number of parts is small, so that maintenance and the like can be easily performed.
종래에는 대한민국 공개특허 92-2267호에 제안된 바와 같이 주축 헤드 내에 회전 가능하게 지지된 중공의 제1주축 및 그 축방향으로 전후 이송되도록 상기 제1주축 내에 회전 가능하게 지지된 제2축을 가진 공작기계의 주축 클램핑장치의 제1주축과 제2주축 사이에 환형의 공간과, 외부 클램핑장치, 제1주축 및 제2주축을 서로 클램프 시키는 스프링 수단, 환형의 정압챔버를 구비하는 구성으로 되고 있어 부품수가 많고, 클램핑부가 복잡하다는 문제점이 있다.Conventionally, a work machine having a hollow first spindle rotatably supported in a spindle head and a second shaft rotatably supported in the first spindle so as to be fed back and forth in the axial direction, as proposed in Korean Patent Laid-Open Publication No. 92-2267. It consists of an annular space between the first and second spindles of the spindle clamping device of the machine, an external clamping device, a spring means for clamping the first spindle and the second spindle, and an annular static pressure chamber. There are many problems, and the clamping part is complicated.
그리고 보수시 내부에 깊게 박혀있는 접시 스프링 및 클램프 링을 분해하는데 많은 어려움이 있었으며, 클램핑력은 접시스프링에서 결정되므로 한번 결정된 클램프력은 조절할 수가 없다는 등의 문제점을 안고 있다.And there was a lot of difficulties in disassembling the plate spring and clamp ring embedded in the deep during the repair, and clamping force is determined in the plate spring, so once the clamp force is determined can not be adjusted.
이에 본 발명은 클램핑부의 구조가 복잡하고, 부품수가 많을 뿐만 아니라, 보수시 내부에 깊게 박혀있는 접시 스프링 및 클램프링의 분해가 어렵고 한번 결정된 클램프력은 조절 할 수가 없었던 종래의 주축 클램핑장치가 안고 있던 문제점 등을 모두 해소하고자 하는데 그 목적이 있는 것이다.Therefore, the present invention has a complicated structure of the clamping portion, a large number of parts, difficult to disassemble the plate spring and clamping ring embedded deeply during the maintenance, and once the clamp force determined by the conventional spindle clamping device was held I want to solve all the problems and that is the purpose.
이하, 본 발명의 구성 및 작용 효과를 첨부된 예시 도면에 의거하여 보다 상세하게 설명하면 다음과 같다.Hereinafter, the configuration and operation effects of the present invention will be described in detail with reference to the accompanying drawings.
도 1은 본 발명에 따른 스핀들 클램핑장치의 요부 발췌 단면도,1 is a cross-sectional view of the main portion of the spindle clamping device according to the present invention,
도 2는 본 발명에 따른 압유 공급부 구조를 나타낸 예시도,2 is an exemplary view showing a pressure oil supply unit structure according to the present invention;
도 3은 본 발명에 따른 압유 공급부의 다른 실시 예도,3 is another embodiment of the pressure oil supply unit according to the present invention,
<도면의 주요부분에 대한 부호설명><Code Description of Main Parts of Drawing>
1: 밀링 스핀들1: milling spindle
2: 보링 스핀들2: boring spindle
3: 주축 헤드3: spindle head
4: 가이드 피스톤4: guide piston
5: 클램핑 슬리브5: clamping sleeve
6: 키이6: tall
7: 플렌지7: flange
8: 스프링8: spring
9: 압유,전달부9: pressure, delivery
10: 유로10: Euro
11: 하우징11: housing
12: 플렌지12: flange
13: 외부 라비란스13: outer labyrinth
14: 내부 라비란스14: internal labyrinth
15: 로크 너트15: lock nut
본 발명은 도1에 나타낸 바와 같이 주축헤드(3) 내에 회전 가능하게 지지된 밀링 스핀들(1) 내측으로 축방향을 따라 이동 가능한 보링 스핀들(2)이 조립되고, 상기 보링 스핀들(2)에 결합되는 정면 플렌지(7)의 포켓에 내장된 다수개의 스프링(8)에 지지되는 가이드 피스톤(4)은 상기 스프링(8)의 탄성을 보유하게 하고, 가이드 피스톤(4)의 걸이홈(42)에는 등 간격으로 절개된 쇄기형 클램핑 슬리부(5)가 결합되어 상기 가이드 피스톤(4)에 의해 밀링 스핀들(1)의 내면에 형성되는 쐐기형 경사면(12)에 보링 스핀들(2)을 클램핑 시키도록 구성되어 있다.As shown in FIG. 1, the boring spindle 2 which is axially movable inside the milling spindle 1 rotatably supported in the spindle head 3 is assembled and coupled to the boring spindle 2. The guide piston 4 supported by the plurality of springs 8 embedded in the pocket of the front flange 7 to retain the elasticity of the spring 8, the hook groove 42 of the guide piston 4 The wedge-shaped clamping slip 5 cut at equal intervals is coupled to clamp the boring spindle 2 to the wedge-shaped slope 12 formed on the inner surface of the milling spindle 1 by the guide piston 4. Consists of.
또한 가이드 피스톤(4)에 결합되는 클램핑 슬리브(5)에는 키이(6)가 결합되어 회전시 클램핑 슬리브(5)가 한쪽으로 쏠리는 것을 방지하고 있다.In addition, the key 6 is coupled to the clamping sleeve 5 coupled to the guide piston 4 to prevent the clamping sleeve 5 from being pulled to one side during rotation.
밀링 스핀들(1)에 클래핑된 보링 스핀들(2)을 해지하는 언 클램프의 동작은 압유 전달부(9)에 의해 언 클램핑 시키도록 되어 있다.The action of the unclamp to release the boring spindle 2 clad on the milling spindle 1 is to be unclamped by the pressure oil transmission 9.
비 회전체에서 회전체로의 압유 전달부(9)는 도2와 같이 비 회전체인 주축헤드(3)에 고정된 하우징(11)에 여러 개의 포켓(112,112,112)을 두어 유압을 동시에공급하면 양측은 배압 작용을 하여 하우징(11)에 미세 틈새로 조립된 회전체인 밀링 스핀들(1)에 관통된 유로(10)를 통하여 압유가 스프링력 이상으로 가이드 피스톤(4)를 밀어 가이드 피스톤(4)에 걸이홈(42)으로 연결된 클램핑 슬리브(5)가 밀려나와 보링 스핀들(2)을 언 클램프 한다.The hydraulic oil transmission unit 9 from the non-rotating body to the rotating body has two pockets 112, 112, 112 fixed to the housing 11 fixed to the non-rotating spindle head 3 as shown in FIG. The back pressure acts to push the guide piston 4 beyond the spring force through the oil passage 10 penetrated through the milling spindle 1, which is a rotating body assembled with a micro clearance in the housing 11, and thus the guide piston 4. The clamping sleeve 5 connected to the hook groove 42 is pushed out to un-clamp the boring spindle 2.
도 3은 언 클램핑 장치의 다른 실시 예를 나타낸 것으로 비 회전체에서 회전체로의 압유 전달부(9)는 비 회전체인 주축헤드(3)에 고정된 하우징(12)과 회전체인 로크 너트(15)에 여러 개의 겹판식으로 조립되어 회전하도록 된 내부 라비란스(14)와 비 회전체인 외부 라비란스(13)를 겹쳐 내부 라비란스(14)와 외부 라비란스(13) 사이의 미세 틈새로 압유를 전달하여 회전체인 밀링 스핀들(1)에 관통된 유로(10)를 통하여 압유가 스프링력 이상으로 가이드 피스톤(4)을 밀어 가이드 피스톤(4)에 걸이홈(42)으로 연결된 클램핑 슬리브(5)가 밀려나와 보링 스핀들(2)을 언 클램프 한다.Fig. 3 shows another embodiment of the unclamping device, in which the oil transmission portion 9 from the non-rotating body to the rotating body has a housing 12 fixed to the main head 3 of the non-rotating body and a lock nut of the rotating body. The micro-gap between the inner labyrinth 14 and the outer labyrinth 13 by overlapping the inner labyrinth 14 and the non-rotating outer labyrinth 13, which are assembled and rotated in multiple stacks on (15). The clamping sleeve connected to the guide piston 4 by the hook groove 42 by pushing the guide piston 4 through the flow path 10 penetrated to the milling spindle 1 which is the rotating body by passing the pressure oil through (5) is pushed out to un-clamp the boring spindle (2).
이상에서 설명한 바와 같이 본 발명에 의하면, 종래의 클램핑장치는 클램핑부의 구조가 복잡하고 부품수가 많아 유지 보수에 어려움이 있었던 반면에 본 발명은 구조가 간단하면서도 부품수가 적어 유지 보수 등이 용이하게 이루어질 수 있게 되는 등의 작용 효과를 가지는 매우 유용한 발명인 것이다.As described above, according to the present invention, the conventional clamping device has a complicated structure and a large number of parts, which makes it difficult to maintain the present invention. However, the present invention has a simple structure and a low number of parts. It is a very useful invention having the effect and the like.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020000000050A KR100341143B1 (en) | 2000-01-03 | 2000-01-03 | Spindle clamping apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020000000050A KR100341143B1 (en) | 2000-01-03 | 2000-01-03 | Spindle clamping apparatus |
Publications (2)
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KR20010068241A KR20010068241A (en) | 2001-07-23 |
KR100341143B1 true KR100341143B1 (en) | 2002-06-20 |
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KR1020000000050A KR100341143B1 (en) | 2000-01-03 | 2000-01-03 | Spindle clamping apparatus |
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Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106312608A (en) * | 2016-11-08 | 2017-01-11 | 沈阳航空航天大学 | Auxiliary positioning device before circular plate blank spin forming |
KR102449379B1 (en) | 2018-03-29 | 2022-09-30 | 주식회사 디엔솔루션즈 | Clamping device of spindle for machine tool |
KR102536393B1 (en) | 2018-11-27 | 2023-05-24 | 주식회사 디엔솔루션즈 | Spindle of machine tool |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63147239U (en) * | 1987-03-16 | 1988-09-28 | ||
JPH04176504A (en) * | 1990-07-10 | 1992-06-24 | Toshiba Mach Co Ltd | Main spindle clamp device for machine tool |
KR19980025850U (en) * | 1996-11-06 | 1998-08-05 | 김재복 | Spindle clamping device of NC boring machine for machine tools (machining center) |
JPH10277803A (en) * | 1997-03-28 | 1998-10-20 | Sodick Co Ltd | Spindle and spindle device of machine tool |
-
2000
- 2000-01-03 KR KR1020000000050A patent/KR100341143B1/en not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63147239U (en) * | 1987-03-16 | 1988-09-28 | ||
JPH04176504A (en) * | 1990-07-10 | 1992-06-24 | Toshiba Mach Co Ltd | Main spindle clamp device for machine tool |
KR19980025850U (en) * | 1996-11-06 | 1998-08-05 | 김재복 | Spindle clamping device of NC boring machine for machine tools (machining center) |
JPH10277803A (en) * | 1997-03-28 | 1998-10-20 | Sodick Co Ltd | Spindle and spindle device of machine tool |
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KR20010068241A (en) | 2001-07-23 |
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