KR20040059285A - Milling spindle clamp device of complex manufacturing lathe - Google Patents

Milling spindle clamp device of complex manufacturing lathe Download PDF

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Publication number
KR20040059285A
KR20040059285A KR1020020085880A KR20020085880A KR20040059285A KR 20040059285 A KR20040059285 A KR 20040059285A KR 1020020085880 A KR1020020085880 A KR 1020020085880A KR 20020085880 A KR20020085880 A KR 20020085880A KR 20040059285 A KR20040059285 A KR 20040059285A
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KR
South Korea
Prior art keywords
coupling
milling spindle
fixed
hydraulic
milling
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KR1020020085880A
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Korean (ko)
Inventor
하헌성
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대우종합기계 주식회사
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Priority to KR1020020085880A priority Critical patent/KR20040059285A/en
Publication of KR20040059285A publication Critical patent/KR20040059285A/en

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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
    • 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
    • B23Q5/06—Driving main working members rotary shafts, e.g. working-spindles driven essentially by fluid pressure or pneumatic power
    • 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
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06—Work-clamping means
    • B23Q3/08—Work-clamping means other than mechanically-actuated
    • B23Q3/082—Work-clamping means other than mechanically-actuated hydraulically actuated
    • 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
    • B23Q2705/00—Driving working spindles or feeding members carrying tools or work
    • B23Q2705/02—Driving working spindles
    • B23Q2705/023—General aspects of driving a boring spindle

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Machine Tool Sensing Apparatuses (AREA)
  • Gripping On Spindles (AREA)

Abstract

PURPOSE: A device for checking the clamping of a milling spindle for a complex lathe is provided to prevent the damage of a tool by checking the clamping of the milling spindle. CONSTITUTION: A device for checking the clamping of a milling spindle is composed of a hydraulic source for generating pressure, a direction control valve(26) installed at the outlet of the hydraulic source and controlling the moving direction of a coupling(20), a pressure detecting unit(30) connected to a hydraulic line connected to a hydraulic chamber(22) and detecting clamping pressure, and a control unit. The control unit checks the clamping of the milling spindle according to a signal output from the pressure detecting unit.

Description

복합 가공 선반에서 밀링 스핀들의 클램프 확인장치{Milling spindle clamp device of complex manufacturing lathe}Milling spindle clamp device of complex manufacturing lathe

본 발명은 복합 가공 선반에서 선삭 작업 및 밀링 작업을 수행하기 위해 고정되는 밀링 스핀들의 클램프를 확인하기 위한 장치에 관한 것이다.The present invention relates to an apparatus for checking a clamp of a milling spindle which is fixed for carrying out turning and milling operations in a compound machining lathe.

일반적으로 복합 가공 선방의 밀링 스핀들이 선삭 작업시 고정되기 위해 결합용 커플링, 고정용 커플링, 회전형 커플링으로 이루어져 있다.In general, milling spindles in the combined machining front are composed of coupling couplings, fixing couplings, and rotary couplings to be fixed during turning operations.

종래 복합 가공 선반에서 밀링 스핀들의 클램프 확인장치는, 회전공구가 장착된 밀링 스핀들에 선삭공구를 장착시키는데 있어 상기 밀링공구대에 고정된 고정커플링과, 상기 고정커플링의 내측에 동축상으로 위치하여 상기 밀링 스핀들에 고정 구비된 회전커플링과, 상기 고정커플링과 회전용커플링의 전면에 설치되어 진퇴운동하면서 회전커플링을 고정커플링에 결합/해제시키는 결합용 커플링을 구비하고 있다.The clamping device of a milling spindle in a conventional machining lathe is a fixed coupling fixed to the milling tool stand and a coaxial position inside the fixed coupling for mounting a turning tool on a milling spindle equipped with a rotary tool. And a coupling coupling fixed to the milling spindle and coupled to the coupling coupling to install / release the rotary coupling to the fixed coupling while moving forward and backward. .

종래에는 상기와 같은 구조로 상기 커플링들이 단순히 결합 및 해제 동작될 뿐 그 동작에 대한 확인이 이루어지지 않았다. 따라서 선삭 작업시 밀링 스핀들이 고정되지 않은 상태에서 선삭 가공작업을 하였을 경우 공구의 파손 및 안전 사고 발생의 우려가 높다.In the related art, the couplings are simply coupled and released with the above structure, and the operation of the couplings has not been confirmed. Therefore, if turning is performed while the milling spindle is not fixed during turning, there is a high risk of tool breakage and safety accidents.

따라서 본 발명은 상기와 같은 종래 기술의 문제점을 해결하기 위한 것으로, 스핀들의 고정 동작을 확인하여 선삭 작업 및 인선 가공시 공구의 파손 및 안전 사고를 미연에 방지할 수 있도록 한 복합 가공 선반에서 밀링 스핀들의 클램프 확인장치를 제공함에 그 목적이 있다.Therefore, the present invention is to solve the problems of the prior art as described above, by checking the fixing operation of the spindle milling spindle in a complex machining lathe to prevent the damage and safety accident of the tool during turning and cutting The purpose is to provide a clamp checking device of the.

도 1은 본 발명이 적용된 밀링 스핀들의 단면도.1 is a cross-sectional view of a milling spindle to which the present invention is applied.

도 2는 본 발명이 적용된 밀링 스핀들 선단부의 단면도와 결합 진퇴 운동 검출장치의 구성도.Figure 2 is a cross-sectional view of the milling spindle end portion to which the present invention is applied and the configuration of the combined retraction motion detection device.

도 3은 본 발명에 적용되는 밀링 스핀들 결합 진퇴 운동 유압회로도.Figure 3 is a milling spindle combined retraction motion hydraulic circuit applied to the present invention.

도 4,5는 선삭 공구가 장착되어진 상태에서 각기 클램프 및 언클램프의 동작상태도.4 and 5 are the operation state of the clamp and unclamp, respectively, in the state where the turning tool is mounted.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

20 : 결합커플링 22 : 유압챔버20: coupling coupling 22: hydraulic chamber

24 : 유압원 26 : 방향제어밸브24: hydraulic pressure source 26: directional control valve

30 : 압력감지수단30: pressure sensing means

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명이 적용된 밀링 스핀들의 단면도이고, 도 2는 본 발명이 적용된 밀링 스핀들 선단부의 단면도와 결합 진퇴 운동 검출장치의 구성도이고, 도 3은 본 발명에 적용되는 밀링 스핀들 결합 진퇴 운동 유압회로도이고, 도 4,5는 선삭 공구가 장착되어진 상태에서 각기 클램프 및 언클램프의 동작상태도이다.1 is a cross-sectional view of a milling spindle to which the present invention is applied, and FIG. 2 is a cross-sectional view of a milling spindle tip to which the present invention is applied and a configuration of a combined retraction motion detecting apparatus, and FIG. 3 is a milling spindle combined retreat motion hydraulic pressure applied to the present invention. 4 and 5 are operation state diagrams of the clamp and the unclamp, respectively, when the turning tool is mounted.

도 1 내지 도 3에 도시된 바와 같이 공구(10)가 장착되는 밀링 스핀들(12)에는 전면에 연속된 치합이를 갖는 회전커플링(14)이 구비되어 있고, 이 회전커플링(14)은 밀링 스핀들(12)과 일체로 회전하게 되어 있다.As shown in FIGS. 1 to 3, the milling spindle 12 on which the tool 10 is mounted is provided with a rotary coupling 14 having a continuous teeth on the front surface, which is provided with a rotary coupling 14. It is intended to rotate integrally with the milling spindle 12.

상기 회전커플링(14)의 둘레에는 밀링공구대(16)에 고정된 고정커플링(18)이 구비되어 있고, 이 고정커플링(18)은 그 전면에 연속된 치합이를 갖고 있다.A fixed coupling 18 fixed to the milling tool 16 is provided around the rotary coupling 14, and the fixed coupling 18 has a continuous teeth on its front surface.

상기 회전커플링(14)과 고정커플링(18)의 치합이는 동일 평면상에 배치되어 있다.The engagement of the rotary coupling 14 and the fixed coupling 18 is arranged on the same plane.

상기 회전커플링(14)과 고정커플링(18)의 전면에는 유압으로 진퇴 운동하는 결합커플링(20)이 밀링공구대(16)에 설치되어 있고, 이 결합커플링(20)은 연속된 치합이를 가지고 있고, 이 치합이의 폭은 상기 회전커플링(14)과 고정커플링(18)의 각 치합이의 합의 폭과 동일하다.On the front of the rotary coupling 14 and the fixed coupling 18, a coupling coupling 20 for moving forward and backward hydraulically is installed in the milling tool 16, the coupling coupling 20 is continuous The teeth have a tooth width, and the width of the teeth is equal to the width of the sum of the teeth of the rotary coupling 14 and the fixed coupling 18.

밀링공구대(16)에는 결합커플링(20)을 유압으로 진퇴운동시키기 위해 결합커플링(20)측 유압챔버(22,23)에는 유압포트(22a,23a)가 연통되어 있다.The hydraulic ports 22a and 23a communicate with the hydraulic chambers 22 and 23 on the coupling coupling 20 side in order to hydraulically move the coupling coupling 20 to the milling tool 16.

상기 유압포트(22a,23a)에는 도 3과 같이 압유를 발생시키는 유압원(24)이 연결되어 있고, 상기 유압원(24)에는 압유의 토출방향을 전환시켜 상기결합커플링(20)의 진,퇴 작동방향을 제어하는 방향제어밸브(26)가 연결되어 있다.A hydraulic source 24 for generating pressure oil is connected to the hydraulic ports 22a and 23a, and the hydraulic source 24 switches the discharge direction of the hydraulic oil to change the coupling coupling 20. The direction control valve 26 which controls the retreat operation direction is connected.

상기 방향제어밸브(26)와 상기 유압포트(22a)와 연결된 유압라인(27)에는 클램프 압력을 감지하는 압력센싱수단으로 압력스위치(30)가 연결되어 있다.The pressure switch 30 is connected to the direction control valve 26 and the hydraulic line 27 connected to the hydraulic port 22a by pressure sensing means for detecting a clamp pressure.

상기 압력스위치(30)는 결합커플링(20)의 클램프 방향으로 이동시 유압라인(27)에 형성된 압력을 감지하여 전기적으로 온(on)/오프(off) 작동한다.The pressure switch 30 senses the pressure formed in the hydraulic line 27 when moving in the clamping direction of the coupling coupling 20 to electrically turn on / off.

상기 압력스위치(30)에는 스위칭의 유무를 비교 판단하여 경고장치(스피커, 경고램프)에 전기적 신호를 보내거나 가공프로그램을 정지시키는 도시안된 제어기가 연결되어 있다.The pressure switch 30 is connected to a controller not shown to compare the presence or absence of switching to send an electrical signal to the warning device (speaker, warning lamp) or to stop the machining program.

경고장치는 예로, 스피커에 경고음을 발생시키거나 경고램프를 점등시키게 할 수 있다.The warning device may, for example, generate a warning sound or turn on the warning lamp in the speaker.

이와 같이 구성된 본 실시예의 작동상태를 설명한다.The operating state of this embodiment configured as described above will be described.

도 5에서와 같이 결합커플링(20)이 후퇴위치에 있을 경우는 회전커플링(14) 및 고정커플링(18)은 결합커플링(20)과 이물림이 이루어지지 않은 언클램프(unclamp) 상태가 된다.When the coupling coupling 20 is in the retracted position as shown in FIG. 5, the rotary coupling 14 and the fixed coupling 18 are not unclamped with the coupling coupling 20. It becomes a state.

따라서 밀링 스핀들(12)에 장착된 공구(10)는 회전이 이루어질 수 있는 상태이다.Therefore, the tool 10 mounted on the milling spindle 12 is in a state in which rotation can be made.

이 상태에서 결합커플링(20)을 전진시키면 결합커플링(20)의 치합이가 회전커플링(14)과 고정커플링(18)의 치합이에 동시에 이물림된다.In this state, when the coupling coupling 20 is advanced, the engagement of the coupling coupling 20 is simultaneously engaged with the engagement of the rotary coupling 14 and the fixed coupling 18.

따라서 회전커플링(14)은 고정커플링(18)과 결합커플링(20)을 매개로 회전되지 못하고 고정된다.Therefore, the rotary coupling 14 is fixed without being rotated through the fixed coupling 18 and the coupling coupling 20.

이때 결합커플링(20)을 전진 시키는 동작은 도 3의 방향제어밸브(26)로 이루어진다.At this time, the operation of advancing the coupling coupling 20 is made of the direction control valve 26 of FIG.

즉, 방향제어밸브(26)를 상방으로 절환시키면 유압원(24)에서 토출된 압유가 유압포트(22a)를 통해 유압챔버(22)에 작용한다. 이에 의해 결합커플링(20)은 전진하여 회전커플링(14)과 고정커플링(18)에 이맞물림된다.That is, when the direction control valve 26 is switched upward, the pressure oil discharged from the hydraulic pressure source 24 acts on the hydraulic chamber 22 through the hydraulic pressure port 22a. The coupling coupling 20 is thereby advanced to engage the rotary coupling 14 and the fixed coupling 18.

이와 같이 결합커플링(20)이 회전커플링(14)과 고정커플링(18)에 결합이 완료되면 압력스위치(30)는 유압라인측의 압력상승으로 전기적 온상태로 작동한다.When the coupling coupling 20 is coupled to the rotary coupling 14 and the fixed coupling 18 as described above, the pressure switch 30 operates in an electric ON state due to the pressure rise on the hydraulic line side.

따라서 압력스위치(30)의 전기적 온(on) 신호로 인해 이를 나타내는 시각적 점등 또는 청각적 음향 발생 등에 따라 클램프를 확인하게 된다.Therefore, the clamp is checked according to visual lighting or auditory sound generation indicating this due to the electrical on signal of the pressure switch 30.

이와 같이 클램프를 확인함으로서 작업자는 가공프로그램의 시작을 개시할 것인지의 여부를 판단할 수 있다.By checking the clamp in this way, the operator can determine whether to start the machining program.

즉, 본 발명에 따르면 클램프의 확인이 이루어질 수 있기 때문에 선삭 작업 및 인선 가공시 밀링 스핀들이 고정되지 않고 가공을 수행하여 발생할 수 있는 공구의 파손 및 안전 사고를 미연에 방지할 수 있다.That is, according to the present invention, since the clamp can be checked, the milling spindle is not fixed during turning and edge cutting, thereby preventing damage to the tool and safety accidents that may occur by performing the machining.

상술한 바와 같이 본 발명에 따르면, 밀링스핀들 고정시 결합용 커플링, 고정용 커플링, 회전용 커플링을 가지고 있어 고강성과 고정도를 유지하고, 결합 및 해제 동작을 확인, 감지하여 선삭 작업시 밀링 스핀들이 고정되지 않고 가공을 수행하여 발생할 수 있는 공구의 파손 및 안전 사고를 미연에 방지할 수 있다.As described above, according to the present invention, when the milling spindle is fixed, it has a coupling coupling, a coupling coupling, and a rotation coupling to maintain high rigidity and high accuracy, and to check and detect the coupling and disengagement operations, thereby turning the milling operation. It is possible to prevent tool breakage and safety accidents caused by machining without the spindle being fixed.

Claims (1)

회전공구가 장착된 밀링 스핀들에 선삭공구를 장착시키는데 있어 상기 밀링공구대에 고정된 고정커플링과, 상기 고정커플링의 내측에 동축상으로 위치하여 상기 밀링 스핀들에 고정 구비된 회전커플링과, 상기 고정커플링과 회전커플링의 전면에 설치되어 진퇴운동하면서 회전커플링을 고정커플링에 결합/해제시키는 결합커플링을 구비한 복합공작기계의 밀링 스핀들 고정장치에 있어서,A fixed coupling fixed to the milling tool platform for mounting the turning tool on the milling spindle equipped with the rotary tool, a rotary coupling positioned coaxially inside the fixed coupling and fixed to the milling spindle; In the milling spindle fixing device of the combined machine tool having a coupling coupling is installed on the front of the fixed coupling and the rotary coupling to move the coupling coupled to the fixed coupling while moving forward and backward, 압유를 발생시키는 유압원(24)과;A hydraulic source 24 for generating pressure oil; 상기 유압원(24)의 토출구측에 설치되어 상기 결합커플링(20)의 진,퇴 작동방향을 제어하는 방향제어밸브(26)와;A direction control valve (26) installed at the discharge port side of the hydraulic source (24) to control the forward and backward operation directions of the coupling coupling (20); 상기 결합커플링(20)을 전진시키는 유압챔버(22)에 연결된 유압라인에 연결 설치되어 클램프 압력을 감지하는 압력감지수단(30)과;A pressure sensing means (30) connected to a hydraulic line connected to a hydraulic chamber (22) for advancing the coupling coupling (20) to sense a clamp pressure; 상기 압력감지수단(30)에서 감지된 전기적 신호의 유무를 판단하여 클램프 또는 언클램프임을 알리는 제어기가 포함된 것을 특징으로 하는 복합 가공 선반에서 밀링 스핀들의 클램프 확인장치.Clamping device of the milling spindle in a complex machining lathe characterized in that it comprises a controller to determine whether there is a clamp or unclamp by determining the presence or absence of the electrical signal detected by the pressure sensing means (30).
KR1020020085880A 2002-12-28 2002-12-28 Milling spindle clamp device of complex manufacturing lathe KR20040059285A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101235486B1 (en) * 2005-12-29 2013-02-20 두산인프라코어 주식회사 Apparatus for CNC Automatic Pressure Control of Spendle Clamp and Method Thereof
KR20230157011A (en) 2022-05-09 2023-11-16 주식회사 디엔솔루션즈 Milling spindle apparatus of machine tool

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101235486B1 (en) * 2005-12-29 2013-02-20 두산인프라코어 주식회사 Apparatus for CNC Automatic Pressure Control of Spendle Clamp and Method Thereof
KR20230157011A (en) 2022-05-09 2023-11-16 주식회사 디엔솔루션즈 Milling spindle apparatus of machine tool

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