GB1302333A - - Google Patents

Info

Publication number
GB1302333A
GB1302333A GB2285571A GB2285571A GB1302333A GB 1302333 A GB1302333 A GB 1302333A GB 2285571 A GB2285571 A GB 2285571A GB 2285571 A GB2285571 A GB 2285571A GB 1302333 A GB1302333 A GB 1302333A
Authority
GB
United Kingdom
Prior art keywords
spindle
bearings
centre
driving
drive
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB2285571A
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 filed Critical
Publication of GB1302333A publication Critical patent/GB1302333A/en
Expired legal-status Critical Current

Links

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
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T82/00—Turning
    • Y10T82/25—Lathe
    • Y10T82/2552—Headstock
    • Y10T82/2562—Spindle and bearings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turning (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

Abstract

1302333 Grinding; headstocks TOYODA KOKI KK 19 April 1971 [10 March 1970] 22855/71 Headings B3D and B3T A headstock device for a grinding-machine is usable selectively as a dead-centre drive or live centre drive for the spindle 7 of the machine. The device has a base 1 in which is secured a sleeve 2 carrying bearings 4 for a belt-driven pulley 3 bolted to a transmission member 6. The spindle 7 is rotatably supported by bearings 14a, 14b, 15a, 15b in the sleeve and at its outer end receives a centre 8. A notch 7a is formed in the spindle and houses a pawl 9 which is movable about a pivot 10 from the position shown when the device is used as a dead centre drive to a position engaging a notch 6a in the transmission member 6 when the device is used as a live centre drive. During dead centre driving, a dog is fixed to a face-plate 11 for driving the workpiece and a seal 12 is mounted at the end of the spindle. During live centre driving, the faceplate is replaced by a chuck (13, Fig. 2, not shown). The bearings 14a, 14b, 15a, 15b are preloaded by a spring 16 adjusted by a nut 18. The preload on the bearings is increased for dead centre drive by axial thrust on the spindle 7 being applied by a clamping mechanism. The mechanism has inner and outer clamping members 27, 28 formed with tapered faces 27a, 28a, the outer member being mounted on a screwthread on a member 23 secured to the sleeve 2 and connected to a ring 29 having a handle 35, and the inner member being connected to the end of the spindle. When the ring 29 is rotated to cause the tapered faces to engage, the spindle acts through a shoulder 7b to apply the axial thrust to the preloaded bearings to increase the stiffness of the bearings when the spindle does not rotate during dead centre driving. When the tapered surfaces are disengaged, the bearings are only bonded by the spring 16 during rotation of the spindle for line centre driving. The disengaging of the tapered surfaces is effected automatically when the spindle is rotated after retraction of the latch 9 into the notch 7a.
GB2285571A 1970-03-10 1971-04-19 Expired GB1302333A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1970022558U JPS4834066Y1 (en) 1970-03-10 1970-03-10

Publications (1)

Publication Number Publication Date
GB1302333A true GB1302333A (en) 1973-01-10

Family

ID=12086170

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2285571A Expired GB1302333A (en) 1970-03-10 1971-04-19

Country Status (5)

Country Link
US (1) US3681879A (en)
JP (1) JPS4834066Y1 (en)
DE (1) DE2111229A1 (en)
FR (1) FR2081822B1 (en)
GB (1) GB1302333A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108032098A (en) * 2017-12-12 2018-05-15 重庆市银钢通科技有限公司 A kind of lathe and its camshaft clamping mechanism

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5815636A (en) * 1981-07-15 1983-01-29 Matsushita Electric Ind Co Ltd Lathe
ATE45527T1 (en) * 1986-09-10 1989-09-15 Schiess Ag WORKING SPINDLE WITH A TOOL HOLDER FOR TURNING, MILLING AND LIKE. TOOLS IN THE SLIDE OF A MACHINE TOOL.
CN101032803B (en) * 2006-03-06 2010-09-08 无锡开源机床集团有限公司 Main shaft structure of internal grinder element
CN102765003B (en) * 2012-07-25 2014-08-27 无锡机床股份有限公司 Clamping structure for shaft parts
US9546688B1 (en) * 2013-05-24 2017-01-17 Gilberto Mesa Axial control assembly and lubrication system
CN104015125A (en) * 2014-05-22 2014-09-03 浙江全顺机床有限公司 Stepless speed change headstock of machine tool
CN105150101A (en) * 2015-10-20 2015-12-16 广东豪特曼智能机器有限公司 Working head of internal grinder
CN106180920B (en) * 2016-08-30 2018-03-16 福鼎市金雄机车部件有限公司 The automatic tapping machine of different pitch tappings is adapted to using motor elasticity interior axle
CN106180921B (en) * 2016-08-30 2018-03-16 福鼎市金雄机车部件有限公司 The adaptive tooth machining unit of Aeroassisted idle stroke
CN106862596A (en) * 2017-02-15 2017-06-20 王秀红 Abrasion resistant type lathe tailstock
CN106825633A (en) * 2017-02-15 2017-06-13 王秀红 Top rotary lathe tailstock
CN111843573A (en) * 2020-07-28 2020-10-30 南京江宁区上峰国银标准件厂 Clamping device for thin-wall sleeve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108032098A (en) * 2017-12-12 2018-05-15 重庆市银钢通科技有限公司 A kind of lathe and its camshaft clamping mechanism

Also Published As

Publication number Publication date
JPS4834066Y1 (en) 1973-10-15
DE2111229A1 (en) 1971-09-23
FR2081822B1 (en) 1974-02-15
FR2081822A1 (en) 1971-12-10
US3681879A (en) 1972-08-08

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee