US3526058A - Diamond roller dresser - Google Patents

Diamond roller dresser Download PDF

Info

Publication number
US3526058A
US3526058A US649696A US3526058DA US3526058A US 3526058 A US3526058 A US 3526058A US 649696 A US649696 A US 649696A US 3526058D A US3526058D A US 3526058DA US 3526058 A US3526058 A US 3526058A
Authority
US
United States
Prior art keywords
dressing
grinding wheel
dressing roller
axis
workpiece
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 - Lifetime
Application number
US649696A
Other languages
English (en)
Inventor
Ralph E Price
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
Application granted granted Critical
Publication of US3526058A publication Critical patent/US3526058A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B24B53/06—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
    • 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
    • B24B5/01—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor for combined grinding of surfaces of revolution and of adjacent plane surfaces on work

Definitions

  • the angle between the axis of the dressing roller and the axis of the grinding wheel must be different than the angle between the axis of the workpiece and the axis of the grinding wheel by an amount corresponding to the difference between the annular surface of the workpiece and the corresponding conical surface of the dressing roller.
  • This disclosure particularly rleates to dressing rollers having diamond impregnated surfaces.
  • This invention relates in general to new and useful improvements in dressing rollers, and more particularly to diamond impregnated dressing rollers for dressing shaped grinding wheels used in the grinding of adjacent cylindrical and annular surfaces of a workpiece.
  • the grinding wheel In the simultaneous grinding of adjacent cylindrical and annular surfaces of a workpiece, the grinding wheel is formed so that the annular surfaces of a workpiece are ground by a frusto-conical surface of the grinding wheel.
  • the axes of the grinding wheels and the workpiece In order to perform a grinding operation with wheels shaped in this manner, it is necessary for the axes of the grinding wheels and the workpiece to be at an angle, usually 30 degrees or 45 degrees.
  • the diamond impregnated dressing roller for dressing such grinding wheels had a contour substantially identical to that of the workpiece including the annular portions.
  • the diameters of the various portions of the dressing rollers are usually larger than the corresponding diameters of the workpiece so that a maximum peripheral dressing surface is available. The practice is to make the smallest diameter not less than two inches.
  • Such dressing rollers are supported for rotation about an axis also spaced 30 degrees or 45 degrees from the grinding wheel axis, the angle between the dressing roller axis and the grinding wheel axis corresponding to the angle between the grinding wheel axis and the workpiece axis.
  • the annular portions of the dressing roller correspond to the annular portions of the workpiece.
  • These annular portions of the dressing roller provide a finish on the corresponding portions of the grinding wheel which is inferior to the finish provided by the conical portions of the dressing roller. This is probably because the annular surface represents a relatively large dresser area in contact with the grinding wheel.
  • a conical surface for the same purpose represents only a line contact with the grinding wheel.
  • the above undesired condition is solved in accordance with this invention by providing an angular relation between the dressing roller axis and the grinding wheel axis which is different from the angle between the workice piece axis and the grinding wheel axis, the angle between the dressing roller axis and the grinding wheel axis preferably being less.
  • the dressing roller is inclined in this manner, the previously annular portions thereof become conical portions so that all portions of the grinding wheel are dressed to the same quality finish.
  • the dressing roller may also be formed of two axially spaced portions, one of which has provision for a slight axial adjustment relative to the other. This adjustment is provided by a spacer or a shim which may be ground to permit the desired adjustment.
  • FIG. 1 is a schematic view showing the previously utilized relationship between the axes of a workpiece being ground, the grinding wheel, and the dressing roller for maintaining the shaped contour of the grinding wheel.
  • FIG. 2 is a fragmentary view on a large scale showing the grinding wheel and dressing roller of FIG. 1 with the relationship therebetween being modified in accordance with this invention and wherein the contour of the dressing roller has been changed.
  • FIG. 1 it will be seen that there is illustrated a typical workpiece W which is mounted for rotation about a fixed axis 5 by means of a pair of aligned centers 6 and 7.
  • the illustrated workpiece is in the form of an automotive spindle although it may vary.
  • the workpiece W includes three cylindrical surfaces 8, 9 and 10 with the cylindrical surfaces 9 and 10 being separated by an annular surface 11.
  • the grinder also includes a grinding wheel GW which is preferably of a twopiece construction and is supported for rotation on a spindle 2 for rotation about a predetermined axis 13.
  • the grinding wheel GW preferably includes a grinding wheel member 14 and a grinding wheel member 15 separated by means of a suitable spacer 16. It is to be noted that the grinding wheel members 14 and 15 have shaped contours in accordance with the portions of the workpiece W to be ground.
  • suitable means are provided for rotating both the workpiece W and the grinding wheel GW for rotation about their respective axes in a conventional manner.
  • means are provided for supporting the centers 6 and 7 on the one hand and the spindle 12 on the other hand for relative movement so as to permit the grinding wheel GW to grind the workpiece W to the desired size as well as the desired configuration.
  • a dressing roller DR is provided for periodically dressing and maintaining the shape of the grinding wheel GW.
  • the dressing roller DR is carried by a rotatable spindle or shaft 17 which, rotates about an axis 18.
  • the angle between the axis 18 of the spindle 17 and the axis 13 of the spindle 12, which angle is referred to as angle X, in the past, has been equal to the angle Y between the axis 13 and the axis 5 about which the workpiece W rotates.
  • the dressing roller DR is formed of two elements 20 and 21 spaced apart by a spacer 22 generally in accordance with the spacing between the wheel elements 14 and 15 of the grinding wheel GW.
  • the dressing roller portions 20, 21 are retained in position on the spindle 17 by means of suitable retainers 23 and 24 carried by the spindle.
  • the dressing roller DR has the same general contour as that of the workpiece W.
  • the dressing roller portion 20 includes two cylindrical portions 25 and 26, which correspond to the cylindrical surfaces 9 and 10 of the workpiece W, respectively.
  • the dressing roller portion also includes an annular surface 27, which corresponds to the annular shoulder 11 of the workpiece W.
  • the dressing roller portion 20 includes an annular surface 28 which corresponds to a shoulder 30 on the workpiece W immediately adjacent the cylindrical surface 10.
  • the dressing roller portion 21 also includes a cylindrical surface 31 which corresponds to the cylindrical surface 8.
  • the specific surfaces of the workpiece W and their corresponding surfaces on the dressing roller DR of themselves are not critical.
  • the criticality resides in the fact that the workpiece W has cylindrical surfaces and adjacent annular surfaces which must be simultaneously ground.
  • the dressing roller will have like cylindrical and annular surfaces in order that the grinding wheel GW will have frusto-conical surfaces which engage the workpiece during the grinding operation. This, of course, is highly undesirable.
  • the annular dressing surfaces 27 and 28 have face-to-face contact with the grinding wheel.
  • the finish of the surfaces of the grinding wheel which are dressed by the dressing roller surfaces 27 and 28 is much inferior to the finish on those portions of the grinding wheel engaged by the cylindrical surfaces of the dressing roller.
  • FIG. 2 it will be seen that there is illustrated a dressing roller which is generally referred to by the numeral 40.
  • the dressing roller 40 like the dressing roller DR, is carried by a spindle 41.
  • the spindle 41 is suitably mounted for rotation about an axis 42 which, in its operative position, is disposed at an angle Z to the axis of rotation 13 of the grinding wheel GW.
  • the dressing roller 40 is of a multiple component construction and includes portions 43 and 44 which are spaced along the spindle 41 with the spacing therebetween being controlled by a spacer 45.
  • the components of the dressing roller 40 are retained on the spindle 41 by means of suitable retainers 46 and 47 and are keyed relative thereto for rotation therewith by means of a key 48.
  • the dressing roller 40 has an effective contour which corresponds to the effective contour of both the dressing roller DR and the workpiece W.
  • the dressing roller 40 has neither cylindrical nor annular dressing surfaces, all of the dressing surfaces of the dressing roller being frusto-conical.
  • the dressing roller portion 43 has surfaces 50 and 51 which are disposed at a slight angle to the axis 42 and which correspond to the dressing surfaces and 26 of the dressing roller DR.
  • the dressing roller portion 43 also has surfaces 52 and 53 which are disposed at a relatively great angle to the axis 42 and which correspond to the annular dressing surfaces 27 and 28 of the dressing roller DR.
  • the dressing roller portion 44 has a dressing surface 54 which corresponds to the dressing surface 31 and which is also frustoconical and extends at a slight angle to the axis 42.
  • the angle Z should be approximately 15 degrees less than the angle Y.
  • a feasible relationship is to have the angle Y of a value of degrees with the angle Z having a value of 15 degrees.
  • the dressing roller 40 is subject to wear to the extent that one portion thereof, for example, the portion 44, may wear at a faster rate than the other portion, that is the portion 43. This results in a change in the diametrical relation between the surfaces 54.
  • the spacer 45 may be shortened by grinding to permit a relative axial adjustment betweenv the two portions 43 and 44.
  • the normal differential of the surfaces 50 and 54 is a dimension A, as is shown in FIG. 2.
  • the change in relation between the surfaces 50 and 54 resulting from the greater rate of wear of the surface 54 results in this dimension increasing to a dimension B.
  • the dressing roller 40 will be mounted on the spindle 41 having fioating bearings and means for adjustment so that any overall axial change in position of the dressing roller required as a result of changing the width of the spacer 45 is taken care of automatically when reassembled.
  • a grinding machine for grinding surfaces of a workpiece which include cylindrical and planar annular surfaces, mechanism including:
  • a dressing roller for said grinding wheel having a general contour corresponding to a contour intended to be ground on the workpiece
  • dressing roller support means for supporting said dressing roller for rotation about a third axis in a position for engagement with said grinding wheel:
  • said axes rotation being in angular relation to one another and the angle between said second and third axes being different from, the angle between said first and second axes with said dressing roller having a conical surface corresponding to each planar annular surface produced in the workpiece.
  • said dressing roller has separate dressing portions spaced axially of said third axis
  • said dressing roller has intermediate spacer means between separate dressing portions for correcting a change in the relation in said grinding wheel portions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
US649696A 1967-06-28 1967-06-28 Diamond roller dresser Expired - Lifetime US3526058A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US64969667A 1967-06-28 1967-06-28

Publications (1)

Publication Number Publication Date
US3526058A true US3526058A (en) 1970-09-01

Family

ID=24605868

Family Applications (1)

Application Number Title Priority Date Filing Date
US649696A Expired - Lifetime US3526058A (en) 1967-06-28 1967-06-28 Diamond roller dresser

Country Status (7)

Country Link
US (1) US3526058A (enrdf_load_stackoverflow)
CH (1) CH518156A (enrdf_load_stackoverflow)
DE (1) DE1752633B2 (enrdf_load_stackoverflow)
FR (1) FR1571802A (enrdf_load_stackoverflow)
GB (1) GB1231011A (enrdf_load_stackoverflow)
NL (1) NL6809162A (enrdf_load_stackoverflow)
SE (1) SE343781B (enrdf_load_stackoverflow)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3626492A (en) * 1968-11-29 1971-12-07 Philips Corp Means for fracturing a plate of material
US4068412A (en) * 1976-11-12 1978-01-17 Cincinnati Milacron-Heald Corporation Grinding machine
US4417422A (en) * 1980-02-15 1983-11-29 Hauni-Werke Korber & Co. Kg. Grinding machine
US4592172A (en) * 1981-10-24 1986-06-03 Ntn Toyo Bearing Co., Ltd. Method of machining tapered roller bearing inner rings
US5833520A (en) * 1993-04-07 1998-11-10 Nec Corporation Mirror polishing device
WO2010096765A1 (en) * 2009-02-20 2010-08-26 Diversified Machine Inc. Wheel assembly and method for making same
US20140123821A1 (en) * 2012-11-05 2014-05-08 Ningbo Zhenming Shaft Co., Ltd. Process of manufacturing drive shaft of an explosion-proof motor
JPWO2015050185A1 (ja) * 2013-10-04 2017-03-09 株式会社フジミインコーポレーテッド 研磨装置、研磨部材の加工方法、研磨部材の修正方法、形状加工用切削工具及び表面修正用工具
CN108161742A (zh) * 2018-01-29 2018-06-15 苏州温特金刚石滚轮有限公司 基于金刚石滚轮修整磨床的数字化检测系统
US10226901B2 (en) * 2013-01-16 2019-03-12 Rehau Ag + Co Method for rounding edges of polymer motor vehicle components

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4214462A1 (de) * 1992-04-30 1993-11-04 Blohm Maschinenbau Gmbh Verfahren und vorrichtung zum schleifen von formstempeln
GB9615511D0 (en) * 1996-07-24 1996-09-04 Western Atlas Uk Ltd Improvements relating to grinding methods and apparatus
JP5141072B2 (ja) 2006-04-25 2013-02-13 日本精工株式会社 軸受ユニット用外輪の製造方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1937726A (en) * 1928-12-22 1933-12-05 Landis Tool Co Grinding machine
US2560654A (en) * 1948-12-14 1951-07-17 Thompson Grinder Co Device for dressing grinding wheels
US2641873A (en) * 1949-03-05 1953-06-16 Cincinnati Milling Machine Co Automatic truing mechanism
US2699018A (en) * 1951-06-30 1955-01-11 Devilbiss Co Automatic grinding wheel dresser and feed control
US2778170A (en) * 1953-11-20 1957-01-22 Jones And Lamson Machine Compa Method of grinding, including grinding wheel forming
US2877758A (en) * 1954-01-06 1959-03-17 Sheffield Cleveland Corp Machine tool
US3145507A (en) * 1961-03-01 1964-08-25 Landis Tool Co Axial locating means for workpieces

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1937726A (en) * 1928-12-22 1933-12-05 Landis Tool Co Grinding machine
US2560654A (en) * 1948-12-14 1951-07-17 Thompson Grinder Co Device for dressing grinding wheels
US2641873A (en) * 1949-03-05 1953-06-16 Cincinnati Milling Machine Co Automatic truing mechanism
US2699018A (en) * 1951-06-30 1955-01-11 Devilbiss Co Automatic grinding wheel dresser and feed control
US2778170A (en) * 1953-11-20 1957-01-22 Jones And Lamson Machine Compa Method of grinding, including grinding wheel forming
US2877758A (en) * 1954-01-06 1959-03-17 Sheffield Cleveland Corp Machine tool
US3145507A (en) * 1961-03-01 1964-08-25 Landis Tool Co Axial locating means for workpieces

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3626492A (en) * 1968-11-29 1971-12-07 Philips Corp Means for fracturing a plate of material
US4068412A (en) * 1976-11-12 1978-01-17 Cincinnati Milacron-Heald Corporation Grinding machine
US4417422A (en) * 1980-02-15 1983-11-29 Hauni-Werke Korber & Co. Kg. Grinding machine
US4592172A (en) * 1981-10-24 1986-06-03 Ntn Toyo Bearing Co., Ltd. Method of machining tapered roller bearing inner rings
US5833520A (en) * 1993-04-07 1998-11-10 Nec Corporation Mirror polishing device
US20100257737A1 (en) * 2009-02-20 2010-10-14 Robert Veldman Wheel assembly and method for making same
WO2010096765A1 (en) * 2009-02-20 2010-08-26 Diversified Machine Inc. Wheel assembly and method for making same
US9120195B2 (en) 2009-02-20 2015-09-01 Diversified Machine, Inc. Wheel assembly and method for making same
US20150367426A1 (en) * 2009-02-20 2015-12-24 Diversified Machine, Inc. Wheel assembly, and apparatus and method for making same
US20140123821A1 (en) * 2012-11-05 2014-05-08 Ningbo Zhenming Shaft Co., Ltd. Process of manufacturing drive shaft of an explosion-proof motor
US10226901B2 (en) * 2013-01-16 2019-03-12 Rehau Ag + Co Method for rounding edges of polymer motor vehicle components
JPWO2015050185A1 (ja) * 2013-10-04 2017-03-09 株式会社フジミインコーポレーテッド 研磨装置、研磨部材の加工方法、研磨部材の修正方法、形状加工用切削工具及び表面修正用工具
JP2017185623A (ja) * 2013-10-04 2017-10-12 株式会社フジミインコーポレーテッド 研磨装置、研磨部材の加工又は修正用工具、研磨部材の加工又は修正方法、及び研磨部材の製造方法
CN108161742A (zh) * 2018-01-29 2018-06-15 苏州温特金刚石滚轮有限公司 基于金刚石滚轮修整磨床的数字化检测系统
CN108161742B (zh) * 2018-01-29 2024-01-02 苏州温特金刚石滚轮有限公司 基于金刚石滚轮修整磨床的数字化检测系统

Also Published As

Publication number Publication date
CH518156A (fr) 1972-01-31
FR1571802A (enrdf_load_stackoverflow) 1969-06-20
DE1752633B2 (de) 1973-08-02
NL6809162A (enrdf_load_stackoverflow) 1968-12-30
SE343781B (enrdf_load_stackoverflow) 1972-03-20
GB1231011A (enrdf_load_stackoverflow) 1971-05-05
DE1752633A1 (de) 1971-10-07

Similar Documents

Publication Publication Date Title
US3526058A (en) Diamond roller dresser
US2663977A (en) System for controlling the position of a shaft in its bearings
US5551908A (en) Centerless grinder and wheel truing device therefor
US2187471A (en) Grinding
JP2002028864A (ja) Ｃｎｃねじ研削盤
US3407800A (en) Dressing apparatus for grinding wheels
JP4131156B2 (ja) 砥石による軌道輪の環状溝の超仕上げ研磨方法
US3438156A (en) Method for form dressing a wheel and for grinding spherical surfaces therewith
US4522188A (en) Gimbal-mounted dressing device for grinding machine
US3067732A (en) Roller-type dressers for grinding wheels
WO1986003706A1 (en) A grinding machine workhead fitted with a dressing tool
US3460293A (en) Regulating wheel for centerless grinder
KR950704088A (ko) 로터리 밸브의 제조에 관련한 개량(improvements in or relating to he manufacture of rotary valves)
US2290269A (en) Internal grinding machine
US2908115A (en) Honing mechanism
US2468921A (en) Grinding wheel dressing mechanism
JPS61146471A (ja) ドレツシング装置
US1575520A (en) Work-carrying device for grinding machines
US1811933A (en) Mechanism for truing and dressing grinding wheels
US1940214A (en) Truing device
JPS61109612A (ja) 雌ねじのねじ溝研削方法および装置
US3046967A (en) Corner dressing means for grinding wheels
US2418535A (en) Machine for finishing metal parts
US2293327A (en) Grinding machine
US2787095A (en) Wheel truing device