KR860000923Y1 - Main shaft transmission device of machine tool - Google Patents

Main shaft transmission device of machine tool Download PDF

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Publication number
KR860000923Y1
KR860000923Y1 KR2019840006297U KR840006297U KR860000923Y1 KR 860000923 Y1 KR860000923 Y1 KR 860000923Y1 KR 2019840006297 U KR2019840006297 U KR 2019840006297U KR 840006297 U KR840006297 U KR 840006297U KR 860000923 Y1 KR860000923 Y1 KR 860000923Y1
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KR
South Korea
Prior art keywords
main shaft
machine tool
bearing
transmission device
spindle
Prior art date
Application number
KR2019840006297U
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Korean (ko)
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KR860000402U (en
Inventor
서향용
Original Assignee
대우중공업주식회사
윤영석
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 대우중공업주식회사, 윤영석 filed Critical 대우중공업주식회사
Priority to KR2019840006297U priority Critical patent/KR860000923Y1/en
Publication of KR860000402U publication Critical patent/KR860000402U/en
Application granted granted Critical
Publication of KR860000923Y1 publication Critical patent/KR860000923Y1/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

Abstract

내용 없음.No content.

Description

공작기계의 주축계 전동장치Spindle transmission of machine tool

제1도는 본 고안의 전동장치가 설치된 공작기계 주축계 단면도.1 is a cross-sectional view of a machine tool spindle system in which the transmission of the present invention is installed.

제2도는 본 고안의 요부 확대 단면도.Figure 2 is an enlarged cross-sectional view of the main part of the present invention.

제3도는 종래 공작기계의 주축계의 단면도.3 is a cross-sectional view of a main shaft system of a conventional machine tool.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

11 : 주축대 12 : 주축베어링11: headstock 12: spindle bearing

13 : 주축 14 : 원통형브라켓트13: spindle 14: cylindrical bracket

16 : 구동풀리 17 : 내부기어링16: drive pulley 17: internal gear ring

19 : 외부기어링19: External Gear

본 고안은 고정밀도를 요하는 공작기계의 주축계 전동장치에 관한 것으로 특히 주축에 밴딩모우멘트가 부가되지 않도록 한 부하방지용 전동장치에 관한 것이다.The present invention relates to a spindle system transmission device of a machine tool requiring high precision, and more particularly, to a load prevention transmission device in which no bending moment is added to the spindle.

일반적인 공작기계의 주축계는 공작기계에 있어서 가장 고도의 정밀도를 요하는 심장부적인 부분인 바, 종래 주축계 전동장치는 제3도에 도시한 바와 같이, 주축(1)을 베어링(2)을 개재하여 주축대(3)에 회전가능하게 지지하고 일단부에 풀리(4)를 고정하여 직접 모우터축에 벨트로 연결한 것이었으므로, 벨트의 인장력에 의해 주축(1)에 밴딩모우멘트가 걸려서 주축(1)의 처짐현상이 발생되어 정밀도가 저하될뿐 아니라 주축(1)을 지지하는 베어링(2)에도 부하가 걸려서 베어링(2)의 내ㆍ외측 레이스간에 편심현상이 생기거나 파손되는 등 많은 문제점이 있었다.The spindle system of a general machine tool is the heart portion that requires the highest degree of precision in a machine tool. In the related art, the spindle system of the prior art has a spindle (1) through a bearing (2), as shown in FIG. It was rotatably supported on the main shaft 3, and the pulley 4 was fixed to one end and directly connected to the motor shaft by a belt. Therefore, the bending moment was applied to the main shaft 1 by the tension force of the belt. In addition to the deflection of (1), the precision is not only deteriorated, but also the bearing (2) supporting the main shaft (1) is subjected to a load, causing many problems such as eccentricity or breakage between the inner and outer race of the bearing (2) There was this.

따라서 본 고안은 이러한 종래의 제반 문제점을 해결하기 위하여 안출된 것으로 이를 첨부도면에 따라서 상세히 설명하면 다음과 같다.Therefore, the present invention has been devised to solve the above-mentioned general problems, which will be described in detail according to the accompanying drawings.

즉, 본 고안은 제1도 및 제2도에 도시한 바와 같이, 주축대(11)에 베어링(12)으로 회전가능하게 지지한 주축(13)의 구동축에 원통형 브라켓트(14)를 유감하여 주축대(11)에 고정하고, 브라켓트(14)에 베어링(15)을 개재하여 구동풀리(15)를 설치하고, 그 측면에 내부기어링(17)을 고정하여 주축(13)에 키이(18)로 고정된 외부기어링(19)에 기어결합하여서 된 것이다.That is, the present invention, as shown in Figs. 1 and 2, the main shaft relieves the cylindrical bracket 14 on the drive shaft of the main shaft 13 rotatably supported by the bearing 12 on the main shaft base (11) It is fixed to the base 11, the drive pulley 15 is installed in the bracket 14 via the bearing 15, and the inner gear ring 17 is fixed to the side surface to the key 18 on the main shaft 13. It is made by gear coupling to a fixed external gear ring (19).

미설명부호(20)은 척(Chuck)이다.Reference numeral 20 is a chuck.

이와 같이 구성된 본 고안은 모우터(미도시)에 벨트로 전동되는 풀리(16)를 주축(13)에 직접 고정하지 않고, 주축(13)의 외경보다 큰 내경을 가지는 원통형 브라켓트(14)에 베어링(15)으로 지지하고, 폴리(16)에 고정된 내부기어링(17)과, 주축(13)에 설치된 외부기어링(19)으로써 주축(13)을 구동하는 것이므로 벨트의 장력은 주축(13)에 직접 걸리지 않고 브라켓트(14)에만 걸리게 되어 주축(13)에 벤딩모우멘트가 걸리는 일이 없고 그로 인한 주축의 처짐현상이 제거되며, 주축(13)을 지지하는 베어링(12)에도 부하가 걸리지 않으므로 베어링 변형이 생기지 않게 된다.The present invention configured as described above does not directly fix the pulley 16 driven by the belt to the motor (not shown) to the main shaft 13, but has a bearing on the cylindrical bracket 14 having an inner diameter larger than the outer diameter of the main shaft 13. The main shaft 13 is driven by the inner gear ring 17 fixed to the poly 16 and fixed to the pulley 16 and the outer gear ring 19 provided on the main shaft 13. Since it is not caught directly, it is caught only on the bracket 14, so that the bending moment is not caught on the main shaft 13, and thus the deflection of the main shaft is eliminated, and the bearing 12 supporting the main shaft 13 is not loaded. No deformation occurs.

따라서 본 고안에 의하면 주축과 주축베어링에 벤딩모우멘트나 부하가 걸리지 않아 변형이 생기지 않으므로 공작기계의 핵심부분인 주축계의 정밀도가 저하되는 일이 없는 효과가 있는 것이다.Therefore, according to the present invention, since no bending moment or load is applied to the spindle and the spindle bearing, deformation does not occur, and thus the precision of the spindle system, which is a key part of the machine tool, is not deteriorated.

Claims (1)

주축대(11)에 베어링(12)으로 회전가능하게 지지한 주축(13)의 구동축에 원통형브라켓트(14)를 유감하여 주축대(11)에 고정하고, 브라켓트(14)에 베어링(15)을 개재하여 구동풀리(16)를 설치하고, 그 측면에 내부기어링(17)을 고정하여 주축(13)에 키이(18)로 고정된 외부기어링(19)에 기어 결합하여서 된 공작기계의 주축계 전동장치.The cylindrical bracket 14 is secured to the main shaft 11 by the drive shaft of the main shaft 13 rotatably supported by the bearing 12 on the main shaft 11, and the bearing 15 is attached to the bracket 14. Drive motor of a machine tool installed by interposing a drive pulley 16 and fixing an inner gear ring 17 to a side thereof and gearing to an outer gear ring 19 fixed to a key 18 on a main shaft 13. Device.
KR2019840006297U 1984-06-30 1984-06-30 Main shaft transmission device of machine tool KR860000923Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019840006297U KR860000923Y1 (en) 1984-06-30 1984-06-30 Main shaft transmission device of machine tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019840006297U KR860000923Y1 (en) 1984-06-30 1984-06-30 Main shaft transmission device of machine tool

Publications (2)

Publication Number Publication Date
KR860000402U KR860000402U (en) 1986-02-13
KR860000923Y1 true KR860000923Y1 (en) 1986-05-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019840006297U KR860000923Y1 (en) 1984-06-30 1984-06-30 Main shaft transmission device of machine tool

Country Status (1)

Country Link
KR (1) KR860000923Y1 (en)

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Publication number Publication date
KR860000402U (en) 1986-02-13

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