KR101401126B1 - CONNECTING STRUCTURE FOR Machining Center'S MAIN SHAFT - Google Patents

CONNECTING STRUCTURE FOR Machining Center'S MAIN SHAFT Download PDF

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Publication number
KR101401126B1
KR101401126B1 KR1020070121767A KR20070121767A KR101401126B1 KR 101401126 B1 KR101401126 B1 KR 101401126B1 KR 1020070121767 A KR1020070121767 A KR 1020070121767A KR 20070121767 A KR20070121767 A KR 20070121767A KR 101401126 B1 KR101401126 B1 KR 101401126B1
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KR
South Korea
Prior art keywords
shaft
rotary joint
pusher
unclamping
machining center
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KR1020070121767A
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Korean (ko)
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KR20090055051A (en
Inventor
유근희
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두산인프라코어 주식회사
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Priority to KR1020070121767A priority Critical patent/KR101401126B1/en
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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
    • 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
    • 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
    • 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
    • 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

Abstract

본 발명은 머시닝센터의 주축 결합구조에 관한 것으로, 공구를 관통하여 절삭유 및 에어를 공급할 수 있는 로타리 조인트(1)와, 공구를 착탈하고 절삭유 및 에어를 공급하는 관로가 형성되며 스핀들축의 내부에 삽입된 드로우바(2)가 연결되고, 상기 로타리 조인트(1)의 단부에 언클램프 푸셔(3)가 장착되고, 상기 언클램프 푸셔(3)에 샤프트(4)가 결합되며, 상기 샤프트(4)의 단부에 상기 로터리 조인트(1)가 연결되어 이루어진다.The present invention relates to a spindle coupling structure of a machining center, which comprises a rotary joint (1) through which a cutting oil and air can be supplied through a tool, a pipe for removing and removing the tool and supplying cutting oil and air, Wherein an unclamping pusher 3 is attached to an end of the rotary joint 1 and a shaft 4 is coupled to the unclamping pusher 3, And the rotary joint 1 is connected to an end of the rotary joint.

본 발명에 따르면, 로타리 조인트를 장착하기 위한 샤프트의 작업 및 관련부품이 단순하게 되고, 관련부품의 단순화로 회전체의 길이가 짧아져 관성이 축소됨에 따라 가감속 능력이 증대될 수 있으며, 관련부품의 단순화로 회전체의 길이가 짧아져 진동특성이 증대될 수 있다.According to the present invention, the operation and related parts of the shaft for mounting the rotary joint are simplified, the acceleration / deceleration capability can be increased as the inertia is reduced by shortening the length of the rotating body by simplifying the related parts, The length of the rotating body is shortened and the vibration characteristics can be increased.

머시닝센터, 드로우바, 결합, 로터리 조인트 Machining center, drawbar, coupling, rotary joint

Description

머시닝센터의 주축 결합구조{CONNECTING STRUCTURE FOR Machining Center'S MAIN SHAFT}BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a machining center,

본 발명은 머시닝센터의 주축 결합구조에 관한 것으로, 더욱 상세하게는 주축과 로타리 조인트가 간결하게 연결될 수 있어 조립성이 향상될 수 있으며, 주축의 가감속 및 진동특성을 향상시킬 수 있도록 한 머시닝센터의 주축 결합구조에 관한 것이다.    The present invention relates to a spindle coupling structure of a machining center, and more particularly, to a spindle coupling structure of a machining center capable of improving assembling performance by connecting a spindle and a rotary joint in a simple manner, To a spindle coupling structure.

일반적으로 머시닝센터(Machining Center)는, 자동 공구 교환장치(ATC : Automatic Tool Changer) 등을 갖추고 여러 종류의 공구를 교환하여 선반, 밀링, 드릴링, 보링머신 등에서 할 수 있는 광범위한 가공을 수행하는 공작기계이다.In general, a machining center is equipped with an automatic tool changer (ATC) or the like and is equipped with a machine tool which performs a wide range of processing that can be performed in a lathe, a milling, a drilling, a boring machine, to be.

이러한 머시닝센터는, 크게 주축이 수직으로 장착되어 있는 수직형(Vertical) 머시닝센터와 주축이 수평으로 장착되어 있는 수평형(Horizontal) 머시닝센터로 나누어진다.Such a machining center is roughly divided into a vertical machining center in which the main spindle is vertically mounted and a horizontal machining center in which the main spindle is mounted horizontally.

상기 수평형 머시닝센터는 팔레트 테이블에 위치된 대형 공작물을 가공하기 위한 장비로써 스핀들 축의 수직축 이동과 칼럼의 수평축 이동을 함께 겸비하고 있 다.The horizontal machining center is a machine for machining large workpieces located on the pallet table, and it also combines the vertical axis movement of the spindle axis and the horizontal axis movement of the column.

첨부된 도 1은 종래 머시닝센터의 주축부의 결합구조를 나타낸 도면이다.BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a view showing a coupling structure of a main shaft portion of a conventional machining center.

도 1에 나타낸 바와 같이, 종래 머시닝센터(A1)는 주축의 공구를 관통하여 절삭유 및 에어를 공급할 수 있는 로타리 조인트(1a)와 주축의 공구를 착탈하고 절삭유 및 에어를 공급하는 관로가 구성되어 있는 드로우바(2a)가 연결된다.As shown in Fig. 1, the conventional machining center A1 includes a rotary joint 1a through which a cutting tool and air can be supplied through a tool of a main spindle, and a piping for detaching and attaching a tool of a spindle to supply cutting oil and air The drawbar 2a is connected.

상기 로타리 조인트(1a)의 정상적 작동을 높이고, 회전정밀도를 향상시키기 위해 형성된 샤프트(3a)와, 상기 샤프트(3a)와 드로우바(2a) 사이에 커플링형태로 연결하고 있는 조인트(4a), 그리고 상기 샤프트(3a)의 회전을 지지하며 회전정밀도를 유지시켜주기 위해 설치된 베어링(5a)으로 구성된다.A shaft 3a formed for enhancing the normal operation of the rotary joint 1a and for improving rotation accuracy and a joint 4a connected in a coupling manner between the shaft 3a and the drawbar 2a, And a bearing 5a installed to support the rotation of the shaft 3a and maintain rotation accuracy.

그러나, 종래 기술은 상기 각 부품이 갯수가 많고, 이에 따라 각 부품들의 회전관성모멘트가 증대하여 가감속능력이 저하되며, 부품들의 전체 길이가 길어져 진동의 발생을 증가시키게 되고, 아울러 조립에 있어서도 각각의 부품의 조립정도를 조정해야 하므로 조립공정이 복잡하게 되는 문제점을 가지고 있다.However, in the prior art, the number of each of the above-mentioned components is large, and thus the rotational inertia moment of each component is increased, so that the acceleration / deceleration capability is lowered, and the total length of the components becomes longer, thereby increasing the occurrence of vibration. So that the assembling process becomes complicated.

본 발명은 상기한 종래 기술의 문제점을 해소하기 위해 안출된 것으로, 주축의 드로우바와 샤프트 및 로터리조인트의 연결구조를 보다 간결하게 개선함으로써 조립성이 간결해지고, 무엇보다 부품들의 조립된 길이를 단축시킴으로써 진동발생을 억제하고, 회전정밀도를 향상시킬 수 있도록 한 머시닝센터의 주축 결합구조를 제공하는데 그 목적이 있다.SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems of the prior art, and it is an object of the present invention to simplify the connection structure of the draw bar, the shaft and the rotary joint of the main shaft to simplify assembling, It is an object of the present invention to provide a spindle coupling structure of a machining center capable of suppressing occurrence of vibration and improving rotation accuracy.

상기한 본 발명의 목적은,SUMMARY OF THE INVENTION [0008]

공구를 관통하여 절삭유 및 에어를 공급할 수 있는 로타리 조인트와, 공구를 착탈하고 절삭유 및 에어를 공급하는 관로가 형성되며 스핀들축의 내부에 삽입된 드로우바가 연결되고, 상기 로타리 조인트의 단부에 언클램프 푸셔가 장착되고, 상기 언클램프 푸셔에 샤프트가 결합되며, 상기 샤프트의 단부에 상기 로터리 조인트가 연결되어 이루어진 머시닝센터의 주축 결합구조에 의해 달성된다. And a drawbar inserted into the spindle shaft is connected to the rotary joint, and an unclamping pusher is attached to the end of the rotary joint. The rotary joint is provided with a rotary joint for passing the tool through which the cutting oil and air can be supplied, And a spindle coupling structure of a machining center in which a shaft is coupled to the unclamping pusher and the rotary joint is connected to an end of the shaft.

본 발명에 따르면, 로타리 조인트를 장착하기 위한 샤프트의 작업 및 관련부품이 단순하게 된다. According to the present invention, the operation of the shaft and the associated parts for mounting the rotary joint are simplified.

또한, 관련부품의 단순화로 회전체의 길이가 짧아져 관성이 축소됨에 따라 가감속 능력이 증대될 수 있다.In addition, since the length of the rotating body is shortened due to the simplification of the related parts and the inertia is reduced, the acceleration / deceleration capability can be increased.

그리고, 관련부품의 단순화로 회전체의 길이가 짧아져 진동특성이 증대될 수 있다.And, the simplification of the related parts can shorten the length of the rotating body and increase the vibration characteristics.

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

첨부된 도 2는 본 발명에 따른 머시닝센터의 주축 결합구조에 대한 결합단면도이다.FIG. 2 is an assembled cross-sectional view of a main shaft coupling structure of a machining center according to the present invention.

도 2에 나타낸 바와 같이, 본 발명에 따른 머시닝센터의 주축 결합구조(A)는, 공구를 관통하여 절삭유 및 에어를 공급할 수 있는 로타리 조인트(1)와, 공구를 착탈하고 절삭유 및 에어를 공급하는 관로가 형성되며 스핀들축(5)의 내부에 삽입된 드로우바(2)가 연결되고, 상기 로타리 조인트(1)의 단부에 언클램프 푸셔(3)가 장착되고, 상기 언클램프 푸셔(3)에 샤프트(4)가 결합되며, 상기 샤프트(4)의 단부에 상기 로터리 조인트(1)가 연결되어 이루어진다.As shown in Fig. 2, the spindle coupling structure A of the machining center according to the present invention includes a rotary joint 1 through which a tool can be fed to supply cutting oil and air, And a draw bar 2 inserted into the spindle shaft 5 is connected to the rotary joint 1 and an unclamping pusher 3 is mounted on the end of the rotary joint 1, And the rotary joint 1 is connected to the end of the shaft 4. [

첨부된 도 3은 본 발명에 따른 머시닝센터의 주축 결합구조에 적용되는 "언클램프 푸셔"에 대한 측단면도이고, 도 4는 본 발명에 따른 머시닝센터의 주축 결합구조에 적용되는 "언클램프 푸셔"에 대한 정면도이다.FIG. 3 is a side sectional view of an "unclamping pusher" applied to a spindle coupling structure of a machining center according to the present invention, and FIG. 4 is an "unclamping pusher" applied to a spindle coupling structure of a machining center according to the present invention. FIG.

상기 언클램프 푸셔(3)는 샤프트(4)와의 간섭을 피하면서 유압실린더(6)와 연결되며, 유압실린더(6)의 직선운동에 동반하여 상기 언클램프 푸셔(3)와 드로우바(2)가 직선운동될 수 있고, 샤프트(4)의 회전운동에 동반하여 상기 언클램프 푸셔(3)와 드로우바(2)가 회전운동될 수 있다.The unclamping pusher 3 is connected to the hydraulic cylinder 6 while avoiding interference with the shaft 4 and is connected to the unclamping pusher 3 and the drawbar 2 in conjunction with the linear movement of the hydraulic cylinder 6. [ So that the unclamping pusher 3 and the drawbar 2 can be rotated together with the rotation of the shaft 4. [

도 3 및 도 4에 나타낸 바와 같이, 언클램프 푸셔(3)는 다수의 통공(324)이 등간격으로 형성되고, 상기 유압실린더(6)와 결합시키기 위한 볼트를 결합하는 볼트체결공(322)이 다수로 형성된 원형판(32)과, 상기 원형판(32)의 일측에는 드로우바(2)의 선단이 결합되는 제 1결합부(33)가 형성되고, 타측에는 샤프트(4)가 결합되는 제 2결합부(34)가 형성되며, 상기 제 1 및 제 2결합부(33,34)의 내측에 통로(36)가 형성되어 이루어진다.3 and 4, the unclamping pusher 3 includes a plurality of through holes 324 formed at equal intervals, and a bolt fastening hole 322 for engaging the bolt for engaging with the hydraulic cylinder 6, A first engaging portion 33 is formed at one side of the circular plate 32 and the other end of the second engaging portion 33 is engaged with the second engaging portion 33 at the other side of the drawbar 2, And a passageway 36 is formed inside the first and second engaging portions 33 and 34. As shown in FIG.

상기 언클램프 푸셔(3)는 제 1결합부(33)가 드로우바(2)의 단부에 나사결합된다.The unclamping pusher 3 is screwed on the end of the drawbar 2 with the first engaging portion 33. [

첨부된 도 5는 본 발명에 따른 머시닝센터의 주축 결합구조에 적용되는 "샤프트"에 대한 정면도이고, 도 6은 상기 도 5의 "I-I"선 단면도이다.Fig. 5 is a front view of a "shaft" applied to a main shaft coupling structure of a machining center according to the present invention, and Fig. 6 is a sectional view taken along the line "I-I"

도 5 및 도 6에 나타낸 바와 같이, 샤프트(4)는 언클램프 푸셔(3)와 로터리 조인트(1)를 연결하기 위한 것으로, 일단부에 상기 언클램프 푸셔(3)의 통공(324)을 경유하고, 그 선단이 스핀들축(5)에 결합되도록 형성된 다수의 바(42)와, 내부에 통로(46)가 형성되며 로터리 조인트(1)가 결합되는 연결부(44)가 형성되어 이루어진다.5 and 6, the shaft 4 is for connecting the unclamping pusher 3 and the rotary joint 1. The shaft 4 has a through hole 324 of the unclamping pusher 3 at one end, A plurality of bars 42 whose tips are formed so as to be coupled to the spindle shaft 5 and a connecting portion 44 in which a passage 46 is formed and to which the rotary joint 1 is coupled.

상기 바(42)에는 볼트가 체결되는 체결공(420)이 형성된다.The bar 42 is formed with a fastening hole 420 to which the bolt is fastened.

이와같이 구성된 본 발명의 결합 및 작동관계를 설명하기로 한다.The combination and operation relationship of the present invention thus constructed will be described.

스핀들축(5)의 내부에 드로우바(2)가 결합되고, 스핀들축(5)의 단부에는 언 클램프 푸셔(3)가 결합되되, 제 1결합부(33)의 내측으로 드로우바(2)의 단부가 삽입되어 나사결합되고, 제 1결합부(33)는 스핀들축(5)의 내측으로 끼워져 결합된다.The drawbar 2 is coupled to the inside of the spindle shaft 5 and the unclamping pusher 3 is coupled to the end of the spindle shaft 5. The drawbar 2 is coupled to the inside of the first engaging portion 33, And the first engaging portion 33 is inserted into the spindle shaft 5 and engaged.

또한, 언클램프 푸셔(3)의 통공(324)에 샤프트(4)의 바(42)가 삽입되고, 상기 바(42)의 단부는 스핀들축(5)의 단부에 접촉된 후 바(42)의 단부에 형성된 체결공(420)을 통해 볼트를 체결하여 고정시킨다.The bar 42 of the shaft 4 is inserted into the through hole 324 of the unclamping pusher 3 and the end of the bar 42 contacts the end of the spindle shaft 5, The bolts are fastened and fixed through the fastening holes 420 formed at the ends of the bolts.

그리고, 상기 언클램프 푸셔(3)의 제 2결합부(34)가 샤프트(4)의 통로(46)에 삽입되어 결합된다.The second engaging portion 34 of the unclamping pusher 3 is inserted into the passage 46 of the shaft 4 and engaged therewith.

이후, 언클램프 푸셔(3)의 원형판(32)에 형성된 볼트체결공(322)에 볼트를 결합한 후 유압실린더(6)에 결합시킨다.Thereafter, the bolt is coupled to the bolt fastening hole 322 formed in the circular plate 32 of the unclamp pusher 3, and then the bolt is coupled to the hydraulic cylinder 6.

이후, 상기 샤프트(4)의 타단에는 로터리 조인트(1)가 연결된다.Thereafter, the rotary joint 1 is connected to the other end of the shaft 4.

따라서, 스핀들축(5)과 드로우바(2), 언클램프 푸셔(3), 유압실린더(6) 및 샤프트(4)가 동반 회전될 수 있고, 유압실린더(6)의 작동에 의해 샤프트(4)의 바(42)를 가이드로 하여 언클램프 푸셔(3)와 스핀들축(5) 및 드로우바(2)가 일체로 전후진의 직선운동을 할 수 있게 된다.Therefore, the spindle shaft 5, the drawbar 2, the unclamping pusher 3, the hydraulic cylinder 6 and the shaft 4 can be rotated together, and the operation of the hydraulic cylinder 6 causes the shaft 4 The unclamping pusher 3, the spindle shaft 5 and the drawbar 2 can be linearly moved forward and backward integrally with the bar 42 of the unclamping pusher 3 as a guide.

도 1은 종래 머시닝센터의 주축부의 연결구조를 나타낸 도면이다.1 is a view showing a connection structure of a main shaft portion of a conventional machining center.

도 2는 본 발명에 따른 머시닝센터의 주축 결합구조에 대한 결합단면도이다.FIG. 2 is an assembled cross-sectional view of a main shaft coupling structure of a machining center according to the present invention.

도 3은 본 발명에 따른 머시닝센터의 주축 결합구조에 적용되는 "언클램프 푸셔"에 대한 측단면도이다.3 is a side cross-sectional view of an "unclamp pusher" applied to the main shaft coupling structure of a machining center according to the present invention.

도 4는 본 발명에 따른 머시닝센터의 주축 결합구조에 적용되는 "언클램프 푸셔"에 대한 정면도이다.4 is a front view of the "unclamp pusher" applied to the main shaft coupling structure of a machining center according to the present invention.

도 5는 본 발명에 따른 머시닝센터의 주축 결합구조에 적용되는 "샤프트"에 대한 정면도이다.5 is a front view of a "shaft" applied to a spindle coupling structure of a machining center according to the present invention.

도 6은 상기 도 5의 "I-I"선 단면도이다.6 is a cross-sectional view taken along the line "I-I"

* 도면의 주요 부분에 대한 부호의 설명 *Description of the Related Art [0002]

1 : 로타리 조인트 2 ; 드로우바1: Rotary joint 2; Drawbar

3 : 언클램프 푸셔 4 : 샤프트3: unclamp pusher 4: shaft

5 : 스핀들축 6 ; 유압실린더5: spindle shaft 6; Hydraulic cylinder

32 : 원형판 33 : 제 1결합부32: Circular plate 33: First engaging portion

34 : 제 2결합부 42 : 바34: second coupling portion 42: bar

44 : 연결부44: Connection

Claims (5)

공구를 관통하여 절삭유 및 에어를 공급할 수 있는 로타리 조인트(1)와, 공구를 착탈하고 절삭유 및 에어를 공급하는 관로가 형성되며 스핀들축(5)의 내부에 삽입된 드로우바(2)가 연결되고, A rotary joint 1 which is capable of supplying cutting oil and air through the tool and a drawbar 2 inserted and inserted into the spindle shaft 5 are formed to form a pipe for attaching and detaching the tool and supplying cutting oil and air , 상기 로타리 조인트(1)의 단부에 언클램프 푸셔(3)가 장착되고, 상기 언클램프 푸셔(3)에 샤프트(4)가 결합되며, 상기 샤프트(4)의 단부에 상기 로터리 조인트(1)가 연결되고,An unclamping pusher 3 is mounted on an end of the rotary joint 1 and a shaft 4 is coupled to the unclamping pusher 3. The rotary joint 1 is fixed to an end of the shaft 4 Connected, 상기 언클램프 푸셔(3)에는 유압실린더(6)가 장착되어, 상기 유압실린더(6)의 직선운동에 동반하여 상기 언클램프 푸셔(3)와 상기 드로우바(2)가 직선운동 가능하도록 하고, The unclamping pusher 3 is provided with a hydraulic cylinder 6 so that the unclamping pusher 3 and the drawbar 2 can move linearly in conjunction with the linear movement of the hydraulic cylinder 6, 상기 언클램프 푸셔(3)는, The unclamping pusher (3) 다수의 통공(324)이 형성되고, 상기 유압실린더(6)와 결합시키기 위한 볼트체결공(322)이 다수로 형성된 원형판(32)과, 상기 원형판(32)의 일측에는 상기 드로우바(2)의 선단이 결합되는 제 1결합부(33)가 형성되고, 타측에는 상기 샤프트(4)가 결합되는 제 2결합부(34)가 형성된 것을 특징으로 하는 머시닝센터의 주축 결합구조. A circular plate 32 having a plurality of through holes 324 and formed with a plurality of bolt fastening holes 322 for engaging with the hydraulic cylinder 6; And a second engaging portion (34) to which the shaft (4) is coupled is formed on the other side of the main engaging portion (33). 삭제delete 제 1항에 있어서,The method according to claim 1, 상기 언클램프 푸셔(3)는 상기 드로우바(2)의 단부에 결합되는 것을 특징으로 하는 머시닝센터의 주축 결합구조. Wherein the unclamping pusher (3) is coupled to the end of the drawbar (2). 삭제delete 제 1항에 있어서,The method according to claim 1, 상기 샤프트(4)는 일단부에 상기 언클램프 푸셔(3)의 통공(324)을 경유하고, 그 선단이 상기 스핀들축(5)에 결합되도록 형성된 다수의 바(42)와, 내부에 통로(46)가 형성되며 상기 로터리 조인트(1)가 결합되는 연결부(44)가 형성되어 이루어진 것을 특징으로 하는 머시닝센터의 주축 결합구조. The shaft 4 has a plurality of bars 42 formed at one end thereof to pass through the through hole 324 of the unclamping pusher 3 and the tip of which is coupled to the spindle shaft 5, 46) are formed on the outer circumferential surface of the rotary joint (1), and a connecting portion (44) to which the rotary joint (1) is coupled is formed.
KR1020070121767A 2007-11-28 2007-11-28 CONNECTING STRUCTURE FOR Machining Center'S MAIN SHAFT KR101401126B1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0724505U (en) * 1993-10-06 1995-05-09 セイコー精機株式会社 Spindle device
JPH08174315A (en) * 1994-10-25 1996-07-09 Hitachi Seiki Co Ltd Tool holder temporary holding device in main spindle of machine tool
JPH10225845A (en) * 1997-02-11 1998-08-25 Howa Mach Ltd Main spindle device for machine tool
JPH1133876A (en) * 1997-07-11 1999-02-09 Toyoda Mach Works Ltd Spindle device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0724505U (en) * 1993-10-06 1995-05-09 セイコー精機株式会社 Spindle device
JPH08174315A (en) * 1994-10-25 1996-07-09 Hitachi Seiki Co Ltd Tool holder temporary holding device in main spindle of machine tool
JPH10225845A (en) * 1997-02-11 1998-08-25 Howa Mach Ltd Main spindle device for machine tool
JPH1133876A (en) * 1997-07-11 1999-02-09 Toyoda Mach Works Ltd Spindle device

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