KR800000123Y1 - Main shaft bearing device for precision lathe - Google Patents

Main shaft bearing device for precision lathe Download PDF

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Publication number
KR800000123Y1
KR800000123Y1 KR7703192U KR770003192U KR800000123Y1 KR 800000123 Y1 KR800000123 Y1 KR 800000123Y1 KR 7703192 U KR7703192 U KR 7703192U KR 770003192 U KR770003192 U KR 770003192U KR 800000123 Y1 KR800000123 Y1 KR 800000123Y1
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KR
South Korea
Prior art keywords
main shaft
bearing
bearing device
precision
shaft bearing
Prior art date
Application number
KR7703192U
Other languages
Korean (ko)
Inventor
홍준용
Original Assignee
홍준용
한국지논 주식회사
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.)
Filing date
Publication date
Application filed by 홍준용, 한국지논 주식회사 filed Critical 홍준용
Priority to KR7703192U priority Critical patent/KR800000123Y1/en
Application granted granted Critical
Publication of KR800000123Y1 publication Critical patent/KR800000123Y1/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
    • B23Q5/54—Arrangements or details not restricted to group B23Q5/02 or group B23Q5/22 respectively, e.g. control handles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2260/00—Details of constructional elements
    • B23B2260/008—Bearings

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Support Of The Bearing (AREA)
  • Mounting Of Bearings Or Others (AREA)

Abstract

내용 없음.No content.

Description

정밀선반의 주축 축수 장치Spindle bearing device of precision lathe

제1도는 본 고안의 축면 절반을 절결한 종 단면도.1 is a longitudinal cross-sectional view of a half of the axis of the present invention.

제2도는 본 고안의 사시도.2 is a perspective view of the present invention.

제3도는 본 것안의 축수장치를 기틀에서 해탈한 사시도.3 is a perspective view of the water storage device of the present invention removed from the frame.

본 고안은 정밀 선반의 주축 축수장치에 관한 것이다.The present invention relates to a spindle bearing device of a precision lathe.

종래의 소형선반기, 탁상용선반기등의 정밀선반기에는 주로 동(銅) 또는 주물등의 축수(Planemetar)를 장착한 것이 많았고 간혹볼 베어링을 장착한것도 있으나 전자는 마찰에 의한 발열 때문에 주축의 회전수를 올릴수가 없어(최고 1,500-1,700RPM 정도) 정밀도 면에서 성능이 저하되고 또는 가공생산률이 비능률적인 문제점이 있었으며 후자는 회전수는 올릴수 있으나 축수 정밀도가 떨어지기 때문에 정밀가공면에서 결점이 있었으므로 본 고안은 이와같은 문제점을 해결하기 위하여 각기성능이 다른 축수(Planemetar)와 볼베어링을 조합하되 축방향으로 조일수 있는 체결(締結)링에 의한 조임 조절로서 볼 베어링 내외륜을 조이게하여 축수부위의 간극을 적게하므로서 고속(5,000 RPM)고 하중, 고정밀도를 기할수 있는 정밀 선반주축 축수장치를 고안한 것인바 이를 첨부도면에 의거하여 상세히 설명하면 다음과 같다.In conventional lathes such as small lathes and table lathes, many lathes are mainly equipped with bearings such as copper or castings, and sometimes with ball bearings. There was a problem of poor performance in terms of precision or inefficiency in machining production rate, and the latter could increase the number of revolutions, but the precision of the shaft was poor, so there was a defect in precision machining. In order to solve this problem, the present invention combines a ball bearing and a ball bearing with different performances, but tightens the inner and outer rings of the ball bearings by tightening the ring by fastening rings that can be tightened in the axial direction, thereby reducing the gap between the bearing parts. It is a precision lathe spindle bearing device that can achieve high speed (5,000 RPM), high load, and high precision with less weight. When described in detail based on the accompanying drawings as follows.

선반기틀 (3)에 형성한 횡공내경에 감합한 축수 케이스(4)외단에 체결너트(5)를 체결하여 축수케이스(4)를 고정하고 축수케이스(4)내경에 감설한 협지금구(挾持金具)(9)의 양편에 앵규러 베어링(매그네트베어링) (12)(12')을 배설하여 그 외단에 체결너트(6)를 체결하고 베어링(12)(12')의 내경에 주축(1)을 삽설하며 주축(1)에 축방향 체결조정링(7)을 관삽(貫押)시켜서 그 내면이 앵규러 베어링(12)의 외면에 전면되게 하고 주축(1)주면에 천설한 나조(1')에 체결너트(8)를 체결하며 베어링(12') 외면은 주축(1)의 후단부에 돌설한 턱에 걸리도록 하였다. 미설명 도면부호(10)은 오픈 쟉크용 프렌치링, (11)은 주측회전용 플리, (13)은 플리 고정기, (14)는 단열심구 볼베어링으로 된 축수이다.A narrow-gauge mouth secured to the bearing case (4) by tightening the fastening nut (5) to the outer end of the bearing case (4) fitted to the lateral hole inner diameter formed on the lathe (3). Angular bearings (magnet bearings) (12) and (12 ') are disposed on both sides of the (9), and the fastening nut (6) is fastened to the outer end thereof, and the main shaft (1) (1) insert the axial fastening adjustment ring (7) into the main shaft (1) so that its inner surface faces the outer surface of the angular bearing (12) and threaded on the main surface of the main shaft (1). ') Is fastened to the fastening nut (8) and the outer surface of the bearing (12') is to be caught in the jaw protruding to the rear end of the main shaft (1). Unexplained reference numeral 10 is an open shank French ring, 11 is a circumference-only pleats, 13 is a pleat fixture, 14 is an axle core ball bearing.

이와같이 된 본 고안은 축방향 체결너트(8)를 체결하여 조이면 축방향조정링(7)은 베어링(12)(12')의 각 양면을 조이게되고 축방향체결너트 (8)의 조임의 정도에 따라서 주축(1)의 후단부턱(1")과 축방향조정링(7)사이에 갇혀있는 2개의 베어링(12)(12') 내륜은 베어링 협지금구(9)를 중간에 개재하여 서로 가까워질 수 있는 방향으로 조여지게 되며 이때 베어링(12)(12')은 베어링 협지금구(9)방향으로 각기 테이퍼형으로 가압작용되어베어링의 보울은 외륜과 내륜의 내벼에 밀어 부처지게되고 수직방항, 축방항의 간극이 감소되고 주축 축수의 정밀도가 향상되므로서 정밀 선반의 축수효능을 월등하게 항상 시타게되는 것이다.According to the present invention, when the axial fastening nut 8 is tightened and tightened, the axial adjustment ring 7 tightens both sides of the bearings 12 and 12 'and the degree of tightening of the axial fastening nut 8 is reduced. Therefore, the inner rings of the two bearings 12 (12 ') trapped between the rear end jaw (1 ") of the main shaft (1) and the axial adjustment ring (7) are close to each other via the bearing narrow groove (9) in the middle. The bearings 12 and 12 'are tapered in the direction of the bearing narrow hole 9 so that the bowl of the bearing is pushed against the inner ring of the outer ring and the inner ring, and the vertical direction, As the clearance of the axial term is reduced and the precision of the spindle axis is improved, the shaft bearing efficiency of the precision lathe is always excellent.

Claims (1)

도면에 표시한바와 같이 선반기틀(3)의 축수케이스(4)의 내경에 감설한 베어링 협지금구(9)의 양편에 앵규러베어링(12)(12')을 감삽하여 체결너트(6)로 고정시키어서 주축(1)에 축방항체결 조정링(7)을 관삽하여 체결너트(8)을 체결 하여서 된 정밀 선반의 주축축수 장치.As shown in the figure, the angular bearings 12 and 12 'are subtracted from both sides of the bearing narrow diaphragm 9 wound on the inner diameter of the bearing case 4 of the lathe base 3 to the tightening nut 6. Spindle shaft bearing device of precision lathe by fastening fastening nut (8) by inserting the axial antifastening adjustment ring (7) to the main shaft (1).
KR7703192U 1977-05-12 1977-05-12 Main shaft bearing device for precision lathe KR800000123Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR7703192U KR800000123Y1 (en) 1977-05-12 1977-05-12 Main shaft bearing device for precision lathe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR7703192U KR800000123Y1 (en) 1977-05-12 1977-05-12 Main shaft bearing device for precision lathe

Publications (1)

Publication Number Publication Date
KR800000123Y1 true KR800000123Y1 (en) 1980-01-31

Family

ID=19205546

Family Applications (1)

Application Number Title Priority Date Filing Date
KR7703192U KR800000123Y1 (en) 1977-05-12 1977-05-12 Main shaft bearing device for precision lathe

Country Status (1)

Country Link
KR (1) KR800000123Y1 (en)

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