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GB931373A - Machine for precision machining preworked centre bores - Google Patents

Machine for precision machining preworked centre bores

Info

Publication number
GB931373A
GB931373A GB2522661A GB2522661A GB931373A GB 931373 A GB931373 A GB 931373A GB 2522661 A GB2522661 A GB 2522661A GB 2522661 A GB2522661 A GB 2522661A GB 931373 A GB931373 A GB 931373A
Authority
GB
United Kingdom
Prior art keywords
work
tools
headstock
july
supporting
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
GB2522661A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HEINZ ROBER
Original Assignee
HEINZ ROBER
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 HEINZ ROBER filed Critical HEINZ ROBER
Publication of GB931373A publication Critical patent/GB931373A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B49/00—Measuring or gauging equipment on boring machines for positioning or guiding the drill; Devices for indicating failure of drills during boring; Centering devices for holes to be bored
    • B23B49/04—Devices for boring or drilling centre holes in workpieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/18—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work
    • B24B5/24—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work for grinding conical surfaces

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Gripping On Spindles (AREA)

Abstract

931,373. Centring machines. H. ROBER. July 12, 1961 [July 13, 1960], No. 25226/61. Class 83 (3). [Also in Group XXIII] The conical faces of the centres at the ends of a workpiece 17 are machined to provide recesses having a curved profile by supporting the work between conical tools 8a, 8b having their axes out of alignment so that at least one worksupport or tool rotates eccentrically about the main axis of the headstock. In the embodiment of Fig. 1, both work-support or tools are mounted eccentrically relative to the axes of the head and tail stocks and are rotated in opposite directions by motors 1 through variable gears controlled by levers 4. The work is yieldingly supported from a carriage 15 by spring-urged members 16, an adjustable spring 13 retaining the tool in engagement with the work. A leveroperated cam 19 is provided to move one support slide b away from the other to permit insertion and removal of the work. In a modified headstock, Fig. 2, the supporting tools 8a are themselves rotated within their rotary holders 7a by belts and pulleys on the motor shaft 5 and the driven elements.
GB2522661A 1960-07-13 1961-07-12 Machine for precision machining preworked centre bores Expired GB931373A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER28334A DE1143733B (en) 1960-07-13 1960-07-13 Machine for fine machining of pre-machined center bores

Publications (1)

Publication Number Publication Date
GB931373A true GB931373A (en) 1963-07-17

Family

ID=7402703

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2522661A Expired GB931373A (en) 1960-07-13 1961-07-12 Machine for precision machining preworked centre bores

Country Status (3)

Country Link
CH (1) CH385656A (en)
DE (1) DE1143733B (en)
GB (1) GB931373A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2347844A1 (en) * 2010-01-26 2011-07-27 Liechti Engineering AG Method for rectifying a centre hole
EP3674034A4 (en) * 2017-11-16 2020-11-18 NSK Ltd. Workpiece support device, machining device, machining method, bearing manufacturing method, vehicle manufacturing method, and mechanical device manufacturing method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4180947A (en) * 1978-01-09 1980-01-01 Cincinnati Milacron Inc. Grinding method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2250017A (en) * 1939-03-24 1941-07-22 Teletype Corp Metalworking apparatus
US2456061A (en) * 1945-08-06 1948-12-14 Woodworth Co N A Double end center lapping machine
DE1079499B (en) * 1958-03-14 1960-04-07 Otto Klein Koerner hole grinding machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2347844A1 (en) * 2010-01-26 2011-07-27 Liechti Engineering AG Method for rectifying a centre hole
EP3674034A4 (en) * 2017-11-16 2020-11-18 NSK Ltd. Workpiece support device, machining device, machining method, bearing manufacturing method, vehicle manufacturing method, and mechanical device manufacturing method
US12128525B2 (en) 2017-11-16 2024-10-29 Nsk Ltd. Workpiece supporting device, processing device, processing method, method for manufacturing bearing, method for manufacturing vehicle, and method for manufacturing mechanical device

Also Published As

Publication number Publication date
CH385656A (en) 1964-12-15
DE1143733B (en) 1963-02-14

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