GB1162537A - Improvements relating to Grinders. - Google Patents

Improvements relating to Grinders.

Info

Publication number
GB1162537A
GB1162537A GB46704/66A GB4670466A GB1162537A GB 1162537 A GB1162537 A GB 1162537A GB 46704/66 A GB46704/66 A GB 46704/66A GB 4670466 A GB4670466 A GB 4670466A GB 1162537 A GB1162537 A GB 1162537A
Authority
GB
United Kingdom
Prior art keywords
roll
crush
reforming
wheel
grinding wheel
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
GB46704/66A
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.)
F JOS LAMB CO Inc
Original Assignee
F JOS LAMB CO 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 F JOS LAMB CO Inc filed Critical F JOS LAMB CO Inc
Publication of GB1162537A publication Critical patent/GB1162537A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
    • B24B53/12—Dressing tools; Holders therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
    • 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
    • B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
    • 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
    • B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
    • B24B53/003—Devices or means for dressing or conditioning abrasive surfaces using at least two conditioning tools
    • 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
    • B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
    • B24B53/06—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels
    • B24B53/07—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels by means of forming tools having a shape complementary to that to be produced, e.g. blocks, profile rolls

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)

Abstract

1,162,537. Trueing grinding wheels; electroerosion. F. JOS. LAMB CO. Inc. 19 Oct., 1966 [19 Oct., 1965], No. 46704/66. Headings B3D and B3V. A method of dressing a grinding wheel comprises reforming a crush roll by electric discharge machining and then using it to dress the grinding wheel. In apparatus for carrying out the method, the crush roll 18 is mounted on a shaft 28 carried by a frame 35 movable about a pivot 32 by a jack mechanism to position the roll either in engagement with the grinding wheel 10 or adjacent an electrode wheel 20 which may be of carbon and has a profile corresponding to that to be formed on the grinding wheel. The crush roll, which may be of metal carbide, is rotatable rapidly by a motor mounted on the frame 35 during crush dressing and at a slow speed or in small increments during reforming. The electrode wheel is rotated at high speed by a motor 38 during reforming and either the crush roll or electrode wheel is provided with either A.C. or interrupted D.C. at high potential to produce arcing so as to remove material from the roll. A dielectric oil is supplied from an outlet 64 and is collected in a trough 66. The electrode wheel is dressed between reforming operations by a blade 80 which is movable along a guideway 82 by a motor or knob 90.
GB46704/66A 1965-10-19 1966-10-19 Improvements relating to Grinders. Expired GB1162537A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US497879A US3398253A (en) 1965-10-19 1965-10-19 Grinding machine with electric discharge machining mechanism for reshaping crush roll

Publications (1)

Publication Number Publication Date
GB1162537A true GB1162537A (en) 1969-08-27

Family

ID=23978690

Family Applications (1)

Application Number Title Priority Date Filing Date
GB46704/66A Expired GB1162537A (en) 1965-10-19 1966-10-19 Improvements relating to Grinders.

Country Status (3)

Country Link
US (1) US3398253A (en)
DE (1) DE1577400A1 (en)
GB (1) GB1162537A (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3878353A (en) * 1968-12-05 1975-04-15 Ingersoll Milling Machine Co Method for finishing rolls
US3651287A (en) * 1969-02-26 1972-03-21 Leonard Rubenstein Electrical switch assembly with improved printed circuit contact structure
US4188522A (en) * 1975-11-06 1980-02-12 Amchem Company Limited Method of machining a workpiece to a predetermined depth using a machining process in which machine tool wear occurs
US4147425A (en) * 1978-05-01 1979-04-03 Polaroid Corporation Photographic processing roller having a surface roughened by electric discharge machining
US4319827A (en) * 1980-10-03 1982-03-16 Polaroid Corporation Method for assembling photographic self-processing apparatus
DE3826251A1 (en) * 1987-08-03 1989-02-16 Yamazaki Mazak Corp MACHINE TOOL WITH A GRINDING FUNCTION, INCLUDING AN ELECTROEROSION APPARATUS / TREATMENT DEVICE AND A GRINDING TOOL
DE3826277A1 (en) * 1987-08-04 1989-02-16 Yamazaki Mazak Corp MACHINE TOOL WITH A GRINDING FUNCTION, INCLUDING AN ELECTROEROSION APPARATUS / TREATMENT DEVICE, A GRINDING TOOL AND A COLLECTING DEVICE
JPH02205416A (en) * 1989-02-03 1990-08-15 Mitsubishi Electric Corp Electric discharging machine
DK0444160T3 (en) * 1989-07-13 1996-08-05 Charmilles Technologies Device, standard blank and standard electrodes for electro-erosive machining
DK171912B1 (en) * 1995-05-26 1997-08-11 Smidth & Co As F L Rolling mill with a continuous grinding of the areas of grinding surfaces exposed to least wear
US6566623B2 (en) * 2001-05-30 2003-05-20 Harvest Precision Components, Inc. Method and apparatus for electric discharge machining with a dressing tool
DE102008010301A1 (en) * 2008-02-21 2009-09-03 Liebherr-Verzahntechnik Gmbh Method for operating a gear grinding machine
JP6197567B2 (en) * 2013-10-16 2017-09-20 株式会社ジェイテクト Truing method and truing device
CN104742020B (en) * 2015-04-15 2016-03-09 山东大学 A kind of peripheral milling super-abrasive grinding wheel cup emery wheel-electric spark compound trimming device
US10232491B2 (en) * 2015-05-29 2019-03-19 Inland Diamond Products Company Retruing of a grinding wheel using EDM machine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2456762A (en) * 1945-09-27 1948-12-21 Thompson Grinder Co Apparatus for crush dressing grinding wheels
FR1059719A (en) * 1948-05-14 1954-03-26 Process for shaping and maintaining the profile of machine tool grinding wheels
CH346953A (en) * 1958-10-01 1960-06-15 Charmilles Sa Ateliers Electrical machining process
US3205335A (en) * 1962-06-18 1965-09-07 Star Cutter Company Method and apparatus for accurately machining hobs and the like
US3222494A (en) * 1963-01-09 1965-12-07 Easco Products Inc Quick-change electrodes system for spark-cutting apparatus

Also Published As

Publication number Publication date
DE1577400A1 (en) 1970-02-12
US3398253A (en) 1968-08-20

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees