GB940440A - Machine tool indexing tables - Google Patents

Machine tool indexing tables

Info

Publication number
GB940440A
GB940440A GB2257661A GB2257661A GB940440A GB 940440 A GB940440 A GB 940440A GB 2257661 A GB2257661 A GB 2257661A GB 2257661 A GB2257661 A GB 2257661A GB 940440 A GB940440 A GB 940440A
Authority
GB
United Kingdom
Prior art keywords
locking elements
rotary
arcuate segments
rollers
machine tool
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
GB2257661A
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.)
CLARENCE FRANCIS WHITTINGHAM
VILLIERS TOOL DEVELOPMENTS Ltd
Original Assignee
CLARENCE FRANCIS WHITTINGHAM
VILLIERS TOOL DEVELOPMENTS Ltd
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 CLARENCE FRANCIS WHITTINGHAM, VILLIERS TOOL DEVELOPMENTS Ltd filed Critical CLARENCE FRANCIS WHITTINGHAM
Priority to GB2257661A priority Critical patent/GB940440A/en
Publication of GB940440A publication Critical patent/GB940440A/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
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
    • B23Q1/28—Means for securing sliding members in any desired position

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machine Tool Positioning Apparatuses (AREA)

Abstract

940,440. Braking devices. VILLIERS (TOOL DEVELOPMENTS) Ltd., and C. F. WHITTINGHAM. May 18, 1962 [June 22, 1961], No. 22576/61. Heading F2E. A machine tool indexing table has an almost complete annular series of locking elements 15, 15a housed within an annular channel 14 which is concentric with the rotary and fixed support members 10, 11 of the table. A wedge member 16 is adapted to be projected into the channel 14 and into a gap between adjacent locking elements 15a so as to cause the locking elements 15, 15a to take up positions in which they bind upon confronting circumferential faces 18, 19 on the rotary and fixed members to frictionally lock them against rotation. The wedge member 16 may be operated by mechanical, pneumatic or other means. To ensure that the rotary member 10 cannot tilt when in the locked condition the circumferential wall 18 is inclined downwardly towards the axis of rotation and the arcuate segments 15, 15a are formed with complementary inclined faces so that they will exert a downward force upon the wall 13 in addition to the radially outward force. In modifications the locking elements comprise arcuate segments having their end faces oppositely inclined tangentially, rollers of a diameter somewhat greater than half the radial dimension between the walls 18, 19, and alternate arcuate segments and rollers.
GB2257661A 1961-06-22 1961-06-22 Machine tool indexing tables Expired GB940440A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2257661A GB940440A (en) 1961-06-22 1961-06-22 Machine tool indexing tables

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2257661A GB940440A (en) 1961-06-22 1961-06-22 Machine tool indexing tables

Publications (1)

Publication Number Publication Date
GB940440A true GB940440A (en) 1963-10-30

Family

ID=10181644

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2257661A Expired GB940440A (en) 1961-06-22 1961-06-22 Machine tool indexing tables

Country Status (1)

Country Link
GB (1) GB940440A (en)

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