GB1366498A - Grinding machines - Google Patents

Grinding machines

Info

Publication number
GB1366498A
GB1366498A GB5635871A GB5635871A GB1366498A GB 1366498 A GB1366498 A GB 1366498A GB 5635871 A GB5635871 A GB 5635871A GB 5635871 A GB5635871 A GB 5635871A GB 1366498 A GB1366498 A GB 1366498A
Authority
GB
United Kingdom
Prior art keywords
grinding
workpiece
spindle
supports
producing
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
GB5635871A
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.)
Litton Industries Inc
Original Assignee
Litton Industries Inc
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 Litton Industries Inc filed Critical Litton Industries Inc
Publication of GB1366498A publication Critical patent/GB1366498A/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
    • B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
    • 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
    • B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • B24B49/02—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent
    • B24B49/04—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent involving measurement of the workpiece at the place of grinding during grinding operation
    • 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
    • B24B5/36—Single-purpose machines or devices
    • B24B5/42—Single-purpose machines or devices for grinding crankshafts or crankpins

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)

Abstract

1366498 Grinding LITTON INDUSTRIES Inc 3 Dec 1971 [16 Dec 1970] 56358/71 Heading B3D A machine 10 for grinding axially spaced coaxial portions, e.g. of a crank-shaft W comprises bearings 16, 17 mounting a grinding spindle 18, spindle bearing supports 41, 41<SP>1</SP> displaceable resiliently transversely of the spindle axis, sensing means 43, 44 for producing two signals indicative of the dimensions of the workpiece at respective axially spaced positions, means (48), Fig. 2 (not shown), for producing a third signal when the two signals differ by more than a predetermined amount, e.g. due to a taper grinding effect caused by non-parallel alignment of the workpiece W and spindle 18, and means 49, 49<SP>1</SP> responsive to the third signal to displace one or other of the bearing supports 41 or 41<SP>1</SP> to restore parallel alignment. The grinding spindle 18 supports a series of wheels 22-26 separated by spacers 27-32 and locked by rings 33, 34, and the workpiece W is supported between a headstock 38 and footstock 39, the sensing means, comprising gauge heads 43, 44, being advanced by hydraulic means 81, 82 to engage the spaced portions of the workpiece W after previous steps in a grinding cycle have ground the workpiece W to approaching the required dimensions. The bearing supports 41, 41<SP>1</SP> mount pressure posts 66, 66<SP>1</SP> engaged by plungers 57, 57<SP>1</SP>, and the signal producing means (48), comprising a differential comparator circuit, acts to operate an hydraulic piston 51 or 51<SP>1</SP> if non-parallel alignment is indicated. A rack 61 or 61<SP>1</SP> and pinion 58 or 58<SP>1</SP> act through a differential screw arrangement to advance the plunger 57 or 57<SP>1</SP>, which is held against rotation, so that the appropriate one of the supports 41, 41<SP>1</SP> is resiliently displaced to restore alignment. On reversing the hydraulic piston 51 or 51<SP>1</SP> to withdraw the plunger 57 or 57<SP>1</SP>, the supports 41, 41<SP>1</SP> resiliently return to a normal position. The parallel relationship may be maintained automatically by a circuit, Figs. 3A and 3B (not shown), or the means 49, 491 may be controlled manually.
GB5635871A 1970-12-16 1971-12-03 Grinding machines Expired GB1366498A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US9880770A 1970-12-16 1970-12-16

Publications (1)

Publication Number Publication Date
GB1366498A true GB1366498A (en) 1974-09-11

Family

ID=22270985

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5635871A Expired GB1366498A (en) 1970-12-16 1971-12-03 Grinding machines

Country Status (4)

Country Link
US (1) US3690072A (en)
JP (1) JPS5119635B1 (en)
DE (1) DE2159721C3 (en)
GB (1) GB1366498A (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3877179A (en) * 1973-02-13 1975-04-15 Cincinnati Milacron Inc Work locating device for grinding machines
US3916576A (en) * 1973-06-11 1975-11-04 Cincinnati Milacron Heald Grinding machine
US3998010A (en) * 1975-12-24 1976-12-21 Landis Tool Company Cylindrical grinder
DE2618093A1 (en) * 1976-04-24 1978-03-16 Heller Geb Gmbh Maschf CRANKSHAFT MILLING MACHINE
JPS5852761B2 (en) * 1979-03-30 1983-11-25 株式会社小松製作所 crankshaft processing machine
US5484327A (en) * 1993-06-21 1996-01-16 Eaton Corporation Method and apparatus for simultaneously grinding a workpiece with first and second grinding wheels
US6553880B2 (en) * 1996-09-16 2003-04-29 Sarcos, Lc Micromachining system
US6077146A (en) * 1997-10-01 2000-06-20 Nippei Toyama Corporation Method of correcting a taper in a grinding machine, and apparatus for the same
GB9909279D0 (en) * 1999-04-23 1999-06-16 Unova Uk Ltd Improvements in and relating to workrests
JP4051872B2 (en) * 2000-09-29 2008-02-27 株式会社ジェイテクト Measuring method of processing part and processing method
JP4447440B2 (en) * 2004-12-02 2010-04-07 新日本製鐵株式会社 Online grinding method for work rolls
US7677954B2 (en) 2007-05-21 2010-03-16 Hall David R O.D. centerless grinding machine
DE102011110118B4 (en) * 2011-08-15 2015-07-09 Emag Holding Gmbh simultaneous grinding machine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1143833A (en) *
US3064395A (en) * 1959-04-17 1962-11-20 Landis Tool Co Device for effecting axial alignment between a tool and workpiece
US3097454A (en) * 1960-12-16 1963-07-16 pheil
US3271910A (en) * 1961-04-12 1966-09-13 Haisch Rudolf Method of and apparatus for correcting the size and angular relation between a workpiece to be ground and a tool
US3145508A (en) * 1963-02-21 1964-08-25 Landis Tool Co Apparatus for grinding intersecting annular and cylindrical surfaces

Also Published As

Publication number Publication date
DE2159721C3 (en) 1978-12-07
US3690072A (en) 1972-09-12
JPS5119635B1 (en) 1976-06-18
DE2159721A1 (en) 1972-06-22
DE2159721B2 (en) 1978-04-13

Similar Documents

Publication Publication Date Title
GB1366498A (en) Grinding machines
GB1310562A (en) Machine tool and other assemblies
GB1320480A (en) Grinding machine
GB945450A (en) Improved grinding machine
GB1078315A (en) Machine tool
GB1200504A (en) Machine tool
GB1122483A (en) Tilted spindle grinder
GB1145231A (en) Boring bar insert
GB1348931A (en) Electric feed for machine element
GB1436781A (en) Machine tool control devices
GB1335505A (en) Key-way milling machine
GB1048336A (en) Grinding machine and method
ES415567A1 (en) Roll positioning means for a rolling mill
GB1402893A (en) Machine tool control devices
GB1090411A (en) Prestressed rolling mill
US3751860A (en) Method of grinding rolls
GB1135957A (en) Grinding machine
GB1277446A (en) A disc acceptability gage
GB1358781A (en) Gear rolling machine
GB1339838A (en) Arrangement for rigidly mounting a member on a shaft
US2380286A (en) Machine for automatically grinding thread gauges and the like
GB1446523A (en) Measuring apparatus for machine tool systems
GB1449630A (en) Apparatus for controlling the movement of a machine tool carriage
GB1109419A (en) Method and device for maintaining of centering holes in centerless infeed grinding
GB1278356A (en) Grinding machine

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years