KR100821639B1 - Nc lathe's spindle apparatus - Google Patents

Nc lathe's spindle apparatus Download PDF

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Publication number
KR100821639B1
KR100821639B1 KR1020070018185A KR20070018185A KR100821639B1 KR 100821639 B1 KR100821639 B1 KR 100821639B1 KR 1020070018185 A KR1020070018185 A KR 1020070018185A KR 20070018185 A KR20070018185 A KR 20070018185A KR 100821639 B1 KR100821639 B1 KR 100821639B1
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KR
South Korea
Prior art keywords
spindle
lathe
vacuum
spindle shaft
suction
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KR1020070018185A
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Korean (ko)
Inventor
김건희
김효식
김윤중
윤원호
김명규
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한국기초과학지원연구원
(주) 지스트
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Priority to KR1020070018185A priority Critical patent/KR100821639B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • 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
    • 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
    • B23Q3/088—Work-clamping means other than mechanically-actuated using vacuum means
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2250/00—Compensating adverse effects during turning, boring or drilling
    • B23B2250/12—Cooling and lubrication

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turning (AREA)

Abstract

A highly precise NC(Numerical Control) lathe is provided for achieving precise turning and cutting by using a spindle as a substitute of a motor shaft to remove a coupling. As a result, a simpler structure of the lathe is obtained and possible causes of errors are eliminated. In addition, a vacuum suction passageway formed in the spindle of the NC lathe allows a vacuum chuck to be fixed to the front end of the spindle so that installation of vacuum chuck is done easily. Furthermore, suction ports formed in the vacuum chuck hold a workpiece without damaging outer surface of the workpiece. A highly precise NC(Numerical Control) lathe equipped with: a spindle substituting a motor shaft includes a stator(22) installed in a casing(20); a motor(2) having a spindle(40) where a vacuum suction passageway(402) is formed in the spindle and where a rotator(44) corresponding to the stator is mounted on the outer surface of the spindle; a spindle housing(4) to connect the motor by inserting the spindle to an insertion hole(400) provided in the spindle housing; an adapter(6) having a path(62) connected to the vacuum suction passageway in the adapter and a rotating member(61) rotated as the spindle rotates; a vacuum creation apparatus attached to the adaptor to exert suction force upon the vacuum suction passageway; and a vacuum chuck(9) holding a workpiece(8) by a suction pressure exerted on the vacuum suction passageway.

Description

엔씨 선반의 스핀들장치{NC LATHE'S SPINDLE APPARATUS}NC LATHE'S SPINDLE APPARATUS}

도 1은 종래 기술을 개략적으로 나타낸 도면,1 is a view schematically showing a prior art,

도 2는 본 발명에 따른 NC 선반의 스핀들장치에 대한 단면도이다.2 is a cross-sectional view of the spindle apparatus of the NC lathe according to the present invention.

* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

2 : 모터부재 4 : 스핀들하우징2: motor member 4: spindle housing

6 : 어댑터 7 : 냉각팬6: adapter 7: cooling fan

8 : 공작물 9 : 진공척8 workpiece 9 vacuum chuck

20 : 케이싱 22 : 고정자20: casing 22: stator

40 : 스핀들축 42 : 베어링40: spindle axis 42: bearing

44 : 회전자 46 : 탄성부44: rotor 46: elastic portion

62 : 통로 61 : 회전부재62: passage 61: rotating member

64 : 에어호스 65 : 끼움부재64: air hose 65: fitting member

92 : 통공 94 : 소흡입공92: through hole 94: small suction hole

본 발명은 NC 선반의 스핀들장치에 관한 것으로, 더욱 상세하게는 스핀들축이 모터축 역할을 함으로써 구조가 간결해질 수 있고, 스핀들축 내에 형성된 진공흡입통로를 통해 발생되는 흡인력에 의해 진공척 및 공작물을 고정시킬 수 있도록 한 NC 선반의 스핀들장치에 관한 것이다.The present invention relates to a spindle device of an NC lathe, and more particularly, the structure of the spindle can be simplified by acting as the motor shaft, and the vacuum chuck and the workpiece are formed by the suction force generated through the vacuum suction passage formed in the spindle shaft. It relates to a spindle unit of an NC lathe for fixing.

일반적으로 NC 선반은 서보모터의 고속회전으로 샤프트가 연동하고, 그 샤프트에 공작물을 클램프할 수 있는 척이 끼워져 있는 스핀들 유니트와, 공작물의 고속회전에 의한 원심력으로 중심을 벗어나는 것을 방지하고자 상기 스핀들 유니트의 구동축과 동일 중심선상에 위치하여 공작물의 중심을 지지하도록 하는 심압대와, 상기 스핀들 유니트 상부의 베드상에 설치되고 수평 및 수직운동을 하는 왕복대 유니트와, 상기 왕복대의 상부에 설치되고 공작물에 접근하여 바이트작업이나 선삭작업을 할 수 있게 다양한 공구가 구비된 터릿으로 구성되어 있다. In general, NC lathes have a spindle unit with a shaft interlocked by a high speed rotation of a servomotor and a chuck for clamping a workpiece on the shaft, and the spindle unit to prevent the shaft from being displaced by centrifugal force due to the high speed rotation of the workpiece. A tailstock positioned on the same centerline as the drive shaft of the support shaft to support the center of the workpiece, a carriage unit mounted on a bed above the spindle unit and performing horizontal and vertical movements, and mounted on the workpiece and mounted on the workpiece. Consists of a turret equipped with a variety of tools to access the bite or turning work.

그러나, 도 1에 나타낸 바와 같이, 종래에는 서보모터(2')의 모터축(20')과 상기 샤프트(4')가 커플링부재(3')에 의해 결합된 구성이므로, 고속회전시 커플링부재(3')의 결합상태에 미세한 변형이 발생되면 정밀가공의 특성상 불량률이 증가되는 원인이 되는 문제점이 있었다.However, as shown in FIG. 1, in the related art, since the motor shaft 20 'and the shaft 4' of the servo motor 2 'are coupled by the coupling member 3', they are coupled at high speed. If a small deformation occurs in the engagement state of the ring member (3 ') there was a problem that causes a failure rate increases in the nature of precision machining.

또한, 종래에는 척(6')을 샤프트(4')에 끼우고, 고정볼트(63')를 조임으로써 고정시켰으나, 고속회전시 조임상태가 느슨해지는 문제점이 있었다.In addition, although the chuck 6 'is conventionally fitted to the shaft 4' and fixed by tightening the fixing bolt 63 ', there is a problem that the tightening state is loosened at high speed.

아울러, 종래 척(6')은 절개된 다수개의 고정구(62')를 나사식으로 조여서 공작물(7')을 협지한 후 바이트(8')에 의해 가공되도록 하였으나, 공작물이 렌즈나 프리즘과 같은 연질의 제품일 경우 과도한 조임에 의해 훼손되거나 흠집이 발생되 는 문제점이 있었다.In addition, although the conventional chuck 6 'is screwed on a plurality of cut-out fasteners 62' and clamps the work piece 7 ', the work piece is processed by the bite 8', but the work piece is made of a lens or prism. In the case of soft products, there is a problem that damage or scratches are caused by excessive tightening.

본 발명은 상기한 종래 기술의 문제점을 해소하기 위해 안출된 것으로, 모터의 모터축 대신 스핀들축을 형성하여, 커플링부재의 사용을 배제함으로써 구조가 간결해질 수 있고, 오차의 발생 소지를 없앰으로써 정밀한 가공이 가능해질 수 있도록 한 NC 선반의 스핀들장치를 제공하는데 그 목적이 있다.The present invention has been made to solve the above-mentioned problems of the prior art, by forming a spindle shaft instead of the motor shaft of the motor, the structure can be simplified by eliminating the use of the coupling member, precise by eliminating the occurrence of errors The object is to provide a spindle unit of an NC lathe that enables machining.

또한, 스핀들축의 내부에 흡입통로를 형성하고, 상기 흡입통로를 통해 진공발생장치에 의한 진공흡입력을 발생시킴으로써 스핀들축의 전단에 진공척을 고정시킬 수 있어, 척의 결합이 간결하게 이루어질 수 있도록 한 NC 선반의 스핀들장치를 제공하는데 다른 목적이 있다.In addition, by forming a suction passage inside the spindle shaft and generating a vacuum suction input by the vacuum generator through the suction passage, it is possible to fix the vacuum chuck to the front end of the spindle shaft, NC lathes so that the coupling of the chuck can be made concise Another object is to provide a spindle device.

또한, 진공척에 흡입공을 형성하여 진공흡인력에 의해 공작물이 고정되도록 함으로써 공작물의 외면에 손상을 주지않고도 고정이 가능하도록 한 NC 선반의 스핀들장치를 제공하는데 목적이 있다.In addition, an object of the present invention is to provide a spindle device of an NC lathe, by forming a suction hole in a vacuum chuck to fix a workpiece by vacuum suction force without damaging the outer surface of the workpiece.

상기한 본 발명의 목적은,The object of the present invention described above,

내측에 흡입통로가 형성되고 외주에 회전자가 구비된 소정 길이의 스핀들축을 상기 회전자에 대응되는 고정자를 갖는 케이싱 내에 삽입하여 전원인가에 의해 스핀들축이 회전될 수 있고, 상기 흡입통로에 진공발생장치를 연결하여 흡인력이 발생됨으로써 상기 스핀들축의 끝단에 진공척을 흡착시키고, 상기 진공척에 공작물을 흡착시켜 회전되어 선삭가공이 이루어질 수 있도록 하는 NC 선반의 스핀들장치 에 의해 달성될 수 있다.The spindle shaft may be rotated by applying power by inserting a spindle shaft of a predetermined length having a stator corresponding to the rotor and having a suction passage formed therein and having a rotor at an outer circumference thereof, and applying a power to the suction shaft. By connecting the suction force is generated by the suction of the vacuum chuck to the end of the spindle shaft, it can be achieved by the spindle device of the NC lathe to rotate by adsorbing the workpiece to the vacuum chuck to be turned.

또한, 상기 본 발명에 있어서, 상기 진공척은 상기 스핀들축의 선단이 삽입되는 안착홈이 전면에 형성되고, 전면의 중심부에는 상기 흡입통로와 통하는 통공이 전면에 형성되며, 상기 통공과 통하며 공작물을 흡착시킬 수 있도록 다수개의 소흡입공이 후면에 형성되어 이루어짐을 특징으로 한다.Further, in the present invention, the vacuum chuck has a seating groove into which the front end of the spindle shaft is inserted is formed on the front surface, a through hole communicating with the suction passage is formed on the front surface of the central portion of the front surface, and communicates with the through hole through the workpiece It is characterized in that a plurality of small suction holes are formed on the back so as to adsorb.

이하 본 발명의 바람직한 실시예를 첨부된 도면을 토대로 상세하게 설명하면 다음과 같다. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

첨부된 도 2는 본 발명에 따른 NC 선반의 스핀들장치에 대한 단면도이다.2 is a cross-sectional view of the spindle apparatus of the NC lathe according to the present invention.

도 2에 나타낸 바와 같이, 본 발명에 따른 NC 선반의 스핀들장치(A)는, 케이싱(20) 내에 설치된 고정자(22)와, 상기 고정자(22)의 내주면에 접하는 회전자(44)가 외주에 설치되고 내측에 흡입통로(402)가 형성된 스핀들축(40)으로 구성된 모터부재(2)와; 상기 스핀들축(40)이 관통 삽입되는 삽입공(400)이 내측에 형성되고, 상기 삽입공(400)의 전단과 후단에 설치되어 스핀들축(40)을 지지하는 복수개의 베어링(42)과, 상기 스핀들축(40)의 진동을 흡수하도록 삽입공(400)의 내주면에 설치된 탄성부(46)가 설치되어 작업대(미도시)에 고정되는 스핀들하우징(4)과; 상기 스핀들축(40)의 흡입통로(402)와 통하는 통로(62)가 내측에 형성되며, 스핀들축(40)과 동반 회전하는 회전부재(61)가 구비된 어댑터(6)와; 상기 어댑터(6)의 통로(62)와 연결되어 스핀들축(40)의 흡입통로(402)에 흡인력을 발생하는 진공발생장치와; 상기 스핀들축(40)의 타단에 배치되어 흡인력에 의해 고정되며 공작물(8)을 고정시키는 진공척(9);으로 구성된다. As shown in FIG. 2, in the spindle device A of the NC lathe according to the present invention, the stator 22 provided in the casing 20 and the rotor 44 in contact with the inner circumferential surface of the stator 22 are provided on the outer circumference. A motor member (2) installed and configured with a spindle shaft (40) having a suction passage (402) therein; An insertion hole 400 through which the spindle shaft 40 is inserted therethrough is formed inside, a plurality of bearings 42 installed at the front end and the rear end of the insertion hole 400 to support the spindle shaft 40; A spindle housing (4) installed at an inner circumferential surface of the insertion hole (400) to absorb vibrations of the spindle shaft (40) and fixed to a work table (not shown); An adapter (6) having a passage (62) communicating with the suction passage (402) of the spindle shaft (40) and having a rotating member (61) co-rotating with the spindle shaft (40); A vacuum generating device connected to the passage 62 of the adapter 6 to generate a suction force in the suction passage 402 of the spindle shaft 40; And a vacuum chuck 9 disposed at the other end of the spindle shaft 40 to be fixed by a suction force and to fix the workpiece 8.

상기 모터부재(2)에 구비된 고정자(22)와 회전자(44)는 통상의 모터에 사용되는 공지된 기술구성이므로 이에 대한 설명은 생략한다.Since the stator 22 and the rotor 44 provided in the motor member 2 are well-known technical configurations used for a conventional motor, description thereof will be omitted.

상기 스핀들축(40)은 소정 길이로 형성된 봉상으로써, 일단에는 진공발생장치의 에어호스(64)가 연결되고, 타단에는 후술될 진공척(9)이 끼워질 수 있도록 원판형상의 플레이트(406)가 장착되며, 내측에는 흡입통로(402)가 형성되고 양단부가 개구된 구조이다. The spindle shaft 40 is a rod-shaped formed in a predetermined length, one end of the air hose 64 of the vacuum generator is connected, the other end of the disk-shaped plate 406 to be fitted with the vacuum chuck 9 to be described later Is mounted, the suction passage 402 is formed on the inside of the structure is open at both ends.

따라서, 상기 스핀들축(40)의 외주에 회전자(44)가 설치되고, 상기 회전자(44)는 상기 고정자(22)에 대응되도록 함으로써 통상의 모터 회전원리와 동일하게 스핀들축(40)이 회전될 수 있으며, 가장 적정한 회전속도는 3000 ∼ 4000 rpm 이다.Therefore, the rotor 44 is installed on the outer circumference of the spindle shaft 40, and the rotor 44 corresponds to the stator 22, so that the spindle shaft 40 is operated in the same way as a general motor rotation principle. Can be rotated, the most suitable rotational speed is 3000 to 4000 rpm.

또한, 상기 스핀들축(40)에서 어댑터(6)와 연결된 부위에 냉각팬(7)을 더 설치함으로써 모터부재(2)의 회전시 발생되는 열을 배출하여 냉각될 수 있도록 하였다.In addition, by installing a cooling fan (7) in the portion connected to the adapter (6) in the spindle shaft 40 to discharge the heat generated during the rotation of the motor member (2) to be cooled.

상기 스핀들하우징(4)은 작업대에 설치되어 스핀들축(40)의 회전을 지지하기 위한 것으로, 내측에는 상기 스핀들축(40)이 관통하여 삽입되는 삽입공(400)이 형성된다.The spindle housing 4 is installed on a workbench to support the rotation of the spindle shaft 40, and an insertion hole 400 is formed through which the spindle shaft 40 is inserted.

그리고, 상기 삽입공(400)의 전단과 후단에는 스핀들축(40)을 지지하는 복수 개의 베어링(42)이 설치되고, 상기 스핀들축(40)의 진동을 흡수할 수 있도록 탄성부(46)가 설치된다. In addition, a plurality of bearings 42 supporting the spindle shaft 40 are installed at the front end and the rear end of the insertion hole 400, and the elastic part 46 is configured to absorb vibrations of the spindle shaft 40. Is installed.

상기 탄성부(46)는, 상기 삽입공(400)의 내주연에 형성된 환턱(462)과, 상기 환턱(462)에 삽입된 상,하부 받침구(464,466)와, 상기 상,하부 받침구(464,466) 사이에 개재된 스프링(465)으로 구성된다.The elastic portion 46, the annulus 462 formed on the inner circumference of the insertion hole 400, the upper and lower support holes (464,466) inserted into the annulus 462, and the upper and lower support holes ( It consists of a spring 465 interposed between 464 and 466.

상기 삽입공(400)의 전단에는 베어링(42)의 이탈을 방지하기 위해 캡(410)이 결합된다.The front end of the insertion hole 400 is coupled to the cap 410 to prevent the separation of the bearing 42.

상기 어댑터(6)는, 전술한 스핀들축(40)과 진공발생장치의 에어호스(64)를 연결하기 위한 것으로, 상기 스핀들축(40)의 흡입통로(402)와 통하는 통로(62)가 내측에 형성되며, 상기 통로(62)와 통하며 스핀들축(40)이 결합되는 결합구(60)가 일측에 형성되고, 상기 통로(62)와 통하며 에어호스(64)가 끼워지는 끼움부재(65)가 타측에 형성되며, 베어링결합에 의해 스핀들축(40)과 동반 회전될 수 있도록 다수의 베어링으로 결합되어 공회전이 가능한 회전부재(61)를 포함하여 구성된다. The adapter 6 is for connecting the above-described spindle shaft 40 and the air hose 64 of the vacuum generator, and the passage 62 communicating with the suction passage 402 of the spindle shaft 40 is inward. Is formed in, the coupling member 60 is in communication with the passage 62 and the spindle shaft 40 is coupled to one side, the fitting member through the passage 62 and the air hose 64 is fitted ( 65 is formed on the other side, and is configured to include a rotating member 61 is coupled to a plurality of bearings so as to be co-rotating with the spindle shaft 40 by the bearing coupling.

상기 진공발생장치는, 상기 어댑터(6)의 끼움부재(65)에 연결된 에어호스(64)와, 상기 에어호스(64)와 연결된 진공펌프(미도시)로 구성되며, 상기 에어호스(64)를 통해 스핀들축(40)의 흡입통로(402)에 진공흡입력을 발생시키며, 또한 스핀들축(40)의 회전과정에서도 진공흡입이 가능하도록 하였다. The vacuum generator is composed of an air hose 64 connected to the fitting member 65 of the adapter 6, and a vacuum pump (not shown) connected to the air hose 64, the air hose 64 Through the vacuum suction input to the suction passage 402 of the spindle shaft 40, and also to enable the vacuum suction in the rotation process of the spindle shaft (40).

상기 진공척(9)은, 상기 스핀들축(40)의 타단에 흡착 고정된 채 공작물(8)을 고정시킬 수 있도록 하기 위한 것으로, 상기 스핀들축(40)의 선단이 삽입되는 안착홈(90)이 전면에 형성되고, 전면의 중심부에는 상기 흡입통로(402)와 통하는 통공(92)이 형성되며, 후면에는 상기 통공(92)과 통하며 공작물(8)을 흡착시킬 수 있도록 다수개의 소흡입공(94)이 형성된다.The vacuum chuck 9 is for allowing the workpiece 8 to be fixed while being sucked and fixed to the other end of the spindle shaft 40, and a seating groove 90 into which the tip of the spindle shaft 40 is inserted. It is formed on the front surface, the through-hole 92 is formed in the center of the front surface and the suction passage 402, the rear side is in communication with the through-hole 92 and a plurality of small suction holes to adsorb the workpiece (8) 94 is formed.

이와 같이 구성된 본 발명의 결합 및 작용을 설명하면 다음과 같다.Referring to the combination and operation of the present invention configured as described above are as follows.

스핀들축(40)의 외주에 회전자(44)를 설치하는 한편, 케이싱(20) 내에 고정자(22)를 장착한 후 상기 스핀들축(40)을 케이싱(20) 내에 삽입하여, 상기 회전자(44)와 고정자(22)가 대응되도록 하여 모터부재(2)를 결합시킨다.While the rotor 44 is installed on the outer circumference of the spindle shaft 40, the stator 22 is mounted in the casing 20, and then the spindle shaft 40 is inserted into the casing 20 so that the rotor ( 44 and the stator 22 to correspond to the motor member (2).

이후, 스핀들하우징(4)의 삽입공(400) 내에 형성된 환턱(462)에 상,하부 받침구(464,466)와 스프링(465)으로 구성된 탄성부(46)를 형성하고, 복수개의 베어링(42)을 전단과 후단에 설치한 후 캡(410)을 결합시킨 다음 상기 스핀들축(40)을 삽입한다.Subsequently, an elastic part 46 including upper and lower support holes 464 and 466 and a spring 465 is formed in the annulus 462 formed in the insertion hole 400 of the spindle housing 4, and the plurality of bearings 42 are formed. After installing the front end and the rear end and then combine the cap 410 and then insert the spindle shaft (40).

이렇게 스핀들축(40)이 삽입된 모터부재(2)를 스핀들하우징(4)의 일측에 나사결합시켜 고정한 후 스핀들축(40)의 타단에는 플레이트(406)를 장착시키고, 스핀들축(40)의 일단에는 냉각팬(7)을 장착한 다음 맨끝단에 어댑터(6)를 장착한다.In this way, the motor member 2 into which the spindle shaft 40 is inserted is fixed by screwing to one side of the spindle housing 4, and then the plate 406 is mounted on the other end of the spindle shaft 40, and the spindle shaft 40 One end is equipped with a cooling fan (7) and then the adapter (6) at the end.

이후, 어댑터(6)의 끼움부재(65)에 에어호스(64)를 연결하여 진공발생장치와 연결시킨다. Thereafter, the air hose 64 is connected to the fitting member 65 of the adapter 6 and connected to the vacuum generator.

이렇게 결합이 완료된 후 전원을 인가하면, 상기 모터부재(2)의 회전자(44) 와 고정자(22)의 전류발생에 의해 스핀들축(40)이 회전하게 된다.When the power is applied after the coupling is completed, the spindle shaft 40 is rotated by the current generation of the rotor 44 and the stator 22 of the motor member 2.

이후, 진공발생장치를 작동시켜 진공흡입력을 발생시키면, 에어호스(65) 및 어댑터(6)를 통해 스핀들축(40) 내의 흡입통로(402)에 진공흡입력이 발생된다.Thereafter, when the vacuum generating device is operated to generate the vacuum suction input, the vacuum suction input is generated in the suction passage 402 in the spindle shaft 40 through the air hose 65 and the adapter 6.

따라서, 스핀들축(40)의 플레이트(406)에 진공척(9)을 위치시키면, 흡인력에 의해 흡착고정될 수 있고, 아울러 진공척(9)의 통공(92) 및 소흡입공(94)에도 흡인력이 발생된다.Therefore, when the vacuum chuck 9 is placed on the plate 406 of the spindle shaft 40, the suction can be fixed by suction force, and the suction hole 94 and the suction hole 94 of the vacuum chuck 9 can be fixed. A suction force is generated.

이후, 진공척(9)의 후면에 공작물(8)을 위치시키면, 상기 소흡입공(94)에서 발생되는 흡인력에 의해 흡착 고정된 채 스핀들축(40)과 동반하여 회전될 수 있다.Subsequently, when the workpiece 8 is positioned on the rear surface of the vacuum chuck 9, the workpiece 8 may be rotated together with the spindle shaft 40 while being sucked and fixed by the suction force generated by the small suction hole 94.

이렇게, 공작물(8)이 회전하는 상태에서 바이트를 접촉시킴으로써 선삭가공이 이루어지게 된다.In this way, turning is performed by contacting the bite while the workpiece 8 is rotated.

비록 본 발명이 상기 언급된 바람직한 실시예와 관련하여 설명되어졌지만, 발명의 요지와 범위로부터 벗어남이 없이 다양한 수정 및 변형이 가능한 것은 당업자라면 용이하게 인식할 수 있을 것이며, 이러한 변경 및 수정은 모두 첨부된 청구의 범위에 속함은 자명하다.Although the present invention has been described in connection with the above-mentioned preferred embodiments, it will be readily apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the invention, all such modifications and modifications being attached It is obvious that the claims belong to the claims.

이상에서 설명한 바와 같이, 본 발명에 따르면, 스핀들축이 모터축의 역할을 함으로써 구조가 간결해질 수 있고, 오차의 발생 소지를 없앰으로써 정밀한 가공이 가능해질 수 있는 효과가 있다. As described above, according to the present invention, the spindle shaft serves as a motor shaft, the structure can be simplified, and the precision machining can be made possible by eliminating the occurrence of errors.

또한, 진공의 흡인력에 의해 진공척을 흡착 고정시킬 수 있고, 아울러 진공 흡인력에 의해 공작물도 흡착 고정시킬 수 있으므로, 구조가 간결해질 수 있고, 공작물의 외면에 손상을 주지않고도 고정이 가능하여 품질이 우수한 제품생산이 가능하게 되는 효과가 있다. In addition, the vacuum chuck can be sucked and fixed by the suction force of the vacuum, and the workpiece can also be fixed by the suction by the vacuum suction force, so that the structure can be simplified and can be fixed without damaging the outer surface of the workpiece. It is effective to produce excellent products.

Claims (7)

케이싱(20) 내에 설치된 고정자(22)와, 내측에 흡입통로(402)가 형성되고 외주에는 상기 고정자(22)에 대응되는 회전자(44)가 설치되어 상기 케이싱(20)에 삽입되는 소정 길이의 스핀들축(40)으로 구성된 모터부재(2); A stator 22 installed in the casing 20 and a suction passage 402 formed therein, and a rotor 44 corresponding to the stator 22 is installed on the outer circumference thereof to be inserted into the casing 20. A motor member 2 composed of a spindle shaft 40; 내측에 형성된 삽입공(400)에 상기 스핀들축(40)을 삽입시켜 상기 모터부재(2)를 결합시키며, 소정의 작업대에 설치되는 스핀들하우징(4);A spindle housing (4) inserted into the insertion hole (400) formed inside to couple the motor member (2) to be installed on a predetermined workbench; 상기 스핀들축(40)의 흡입통로(402)와 통하는 통로(62)가 내측에 형성되며, 상기 스핀들축(40)과 동반 회전되는 회전부재(61)가 구비된 어댑터(6); An adapter (6) having a passage (62) communicating with the suction passage (402) of the spindle shaft (40) and having a rotating member (61) rotated together with the spindle shaft (40); 상기 어댑터(6)에 연결되며, 상기 흡입통로(402)에 흡인력을 발생시키는 진공발생장치; 및 A vacuum generator connected to the adapter (6) and generating a suction force in the suction passage (402); And 상기 스핀들축(40)의 타단에 배치되어 흡입통로(402)에서 발생된 흡인력에 의해 고정되며, 상기 흡입통로(402)의 흡인력에 의해 공작물을 고정시키는 진공척(9);을 포함하며,It is disposed on the other end of the spindle shaft 40 is fixed by the suction force generated in the suction passage 402, the vacuum chuck (9) for fixing the workpiece by the suction force of the suction passage 402; 상기 스핀들하우징(4)은, 상기 스핀들축(40)을 지지하는 복수개의 베어링(42)이 상기 삽입공(400)의 전단과 후단에 설치되고, 상기 스핀들축(40)의 진동을 흡수하는 탄성부(46)가 상기 삽입공(400)의 내주면에 설치된 것을 특징으로 하는 NC 선반의 스핀들장치. The spindle housing 4 is provided with a plurality of bearings 42 supporting the spindle shaft 40 at the front and rear ends of the insertion hole 400, and elastically absorbing the vibration of the spindle shaft 40. NC lathe spindle device, characterized in that the portion 46 is installed on the inner peripheral surface of the insertion hole (400). 삭제delete 제 1항에 있어서,The method of claim 1, 상기 탄성부(46)는, 상기 삽입공(400)의 내주연에 형성된 환턱(462)과, 상기 환턱(462)에 삽입된 상,하부 받침구(464,466)와, 상기 상,하부 받침구(464,466) 사이에 개재된 스프링(465)으로 구성된 것을 특징으로 하는 NC 선반의 스핀들장치. The elastic portion 46, the annulus 462 formed on the inner circumference of the insertion hole 400, the upper and lower support holes (464,466) inserted into the annulus 462, and the upper and lower support holes ( Spindle device of the NC lathe, characterized in that consisting of a spring (465) interposed between 464,466. 제 1항에 있어서,The method of claim 1, 상기 어댑터(6)는, 상기 스핀들축(40)이 결합되는 결합구(60)가 일측에 형성되고, 상기 통로(62)와 통하며 상기 진공발생장치가 연결되는 끼움부재(65)가 타측에 형성된 것을 특징으로 하는 NC 선반의 스핀들장치. The adapter 6 has a coupling hole 60 to which the spindle shaft 40 is coupled to one side, and a fitting member 65 to communicate with the passage 62 and to which the vacuum generator is connected to the other side. Spindle device of the NC lathe characterized in that formed. 제 1항에 있어서,The method of claim 1, 상기 스핀들축(40)에는 상기 어댑터(6)와 연결된 부위에 냉각팬(7)이 설치되어, 상기 모터부재(2)의 회전시 발생되는 열을 냉각시킬 수 있도록 한 것을 특징으로 하는 NC 선반의 스핀들장치. The spindle shaft 40 is provided with a cooling fan 7 at a portion connected to the adapter 6, so as to cool the heat generated when the motor member 2 rotates of the NC lathe Spindle unit. 제 1항 또는 제 4항에 있어서,The method according to claim 1 or 4, 상기 진공발생장치는, 상기 어댑터(6)의 끼움부재(65)에 연결된 에어호스(64)와, 상기 에어호스(64)와 연결된 진공펌프로 구성된 것을 특징으로 하는 NC 선반의 스핀들장치. The vacuum generating device is characterized in that the spindle device of the NC lathe, characterized in that the air hose 64 connected to the fitting member (65) of the adapter (6), and a vacuum pump connected to the air hose (64). 제 1항에 있어서,The method of claim 1, 상기 진공척(9)은, 상기 스핀들축(40)의 선단이 삽입되는 안착홈(90)이 전면에 형성되고, 전면의 중심부에는 상기 흡입통로(402)와 통하는 통공(92)이 형성되며, 후면에는 상기 통공(92)과 통하며 공작물(8)을 흡착시킬 수 있도록 다수개의 소흡입공(94)이 형성된 것을 특징으로 하는 NC 선반의 스핀들장치. The vacuum chuck 9 has a seating groove 90 into which the front end of the spindle shaft 40 is inserted, and a through hole 92 communicating with the suction passage 402 in the center of the front surface. Spindle device of the NC lathe, characterized in that a plurality of small suction hole (94) is formed in the rear and communicates with the through hole (92) to adsorb the work (8).
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CN112296610A (en) * 2020-10-29 2021-02-02 众至达精密机械科技(昆山)有限公司 High-precision medical equipment structural member finish machining fixing device and production process
KR102380143B1 (en) * 2020-11-30 2022-03-29 일윤주식회사 High precision high rigidity air spindle for ultra precision processing
CN115431081A (en) * 2022-09-21 2022-12-06 中国电子科技集团公司第十研究所 Vacuum adsorption clamp

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Publication number Priority date Publication date Assignee Title
KR101007039B1 (en) 2010-07-27 2011-01-12 한국기계연구원 Tailstock giving freedom to spindle and roll-shaped mold working machine with the same
CN107263148A (en) * 2017-06-14 2017-10-20 安徽华昊机械制造有限公司 A kind of electric machine casing clamping device
CN107866714A (en) * 2017-11-09 2018-04-03 科森科技东台有限公司 Polishing tool for mobile phone part
KR101999330B1 (en) 2018-02-01 2019-07-11 칸워크홀딩 주식회사 Electrical Driving System of Built-in Type for Machine Tools, And Method for Operating the Same
CN112296610A (en) * 2020-10-29 2021-02-02 众至达精密机械科技(昆山)有限公司 High-precision medical equipment structural member finish machining fixing device and production process
KR102380143B1 (en) * 2020-11-30 2022-03-29 일윤주식회사 High precision high rigidity air spindle for ultra precision processing
CN115431081A (en) * 2022-09-21 2022-12-06 中国电子科技集团公司第十研究所 Vacuum adsorption clamp

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