EP0336312A3 - Computer controlled universal grinder and method for grinding hypotrochoidal, epitrochoidal and circular bearing races - Google Patents

Computer controlled universal grinder and method for grinding hypotrochoidal, epitrochoidal and circular bearing races Download PDF

Info

Publication number
EP0336312A3
EP0336312A3 EP19890105689 EP89105689A EP0336312A3 EP 0336312 A3 EP0336312 A3 EP 0336312A3 EP 19890105689 EP19890105689 EP 19890105689 EP 89105689 A EP89105689 A EP 89105689A EP 0336312 A3 EP0336312 A3 EP 0336312A3
Authority
EP
European Patent Office
Prior art keywords
grinding
circular bearing
hypotrochoidal
epitrochoidal
tables
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.)
Withdrawn
Application number
EP19890105689
Other languages
German (de)
French (fr)
Other versions
EP0336312A2 (en
Inventor
Michel A. Pierrat
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0336312A2 publication Critical patent/EP0336312A2/en
Publication of EP0336312A3 publication Critical patent/EP0336312A3/en
Withdrawn legal-status Critical Current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
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/02—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements
    • B24B19/06—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements for grinding races, e.g. roller races

Abstract

A grinding machine for grinding epitrochoidal, hypotrochoidal, and circular bearing races in one set-up without having to move the part and to insure near perfect concentricity between all of the bearing races.
A machine blank is mounted on an upper rotary table that is in turn mounted on a lower rotary table. The upper table is driven both by the lower table and by an independent servomotor. The net speed of the upper table is the difference between the two driving speeds of the tables. The axis of rotation of the upper table is capable of being offset from the axis of rotation of the lower table. The two tables are rotated in opposite directions while a grinding wheel is moved laterally into contact with the surface of a rough-machined part to form the trochoidal surface. The characteristics are determined by the amount of the offset, the diameter of any rollers that are to be positioned between the trochoidal surfaces in the speed change device, and the relative speeds of the two tables. After the trochoidal surface or surfaces are completed, the lower table is stopped in its home position and the upper table is driven in order to grind the circular bearing race or races. Three independently-driven grinding spindles are provided.
EP19890105689 1988-04-04 1989-03-31 Computer controlled universal grinder and method for grinding hypotrochoidal, epitrochoidal and circular bearing races Withdrawn EP0336312A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US17684688A 1988-04-04 1988-04-04
US176846 1988-04-04

Publications (2)

Publication Number Publication Date
EP0336312A2 EP0336312A2 (en) 1989-10-11
EP0336312A3 true EP0336312A3 (en) 1991-01-09

Family

ID=22646100

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890105689 Withdrawn EP0336312A3 (en) 1988-04-04 1989-03-31 Computer controlled universal grinder and method for grinding hypotrochoidal, epitrochoidal and circular bearing races

Country Status (2)

Country Link
EP (1) EP0336312A3 (en)
JP (1) JPH0288163A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015215624A1 (en) * 2015-08-17 2017-02-23 Schaeffler Technologies AG & Co. KG Process for producing bearing components by means of a production line, production line and manufacturing plant
GB2579784B (en) * 2018-12-13 2021-05-05 Rolls Royce Plc Component manufacturing using a grinding tool following a trochoidal path

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB278203A (en) * 1926-11-15 1927-10-06 Lorenz Konrad Braren Improvements in or relating to production of cycloidal curves
US2151483A (en) * 1935-06-05 1939-03-21 Arthur A Nichols Rotor generating method and machine
US3554082A (en) * 1967-05-18 1971-01-12 Meyrat & Luisoni Apparatus for tracing curvilinear paths on workpieces
US3857203A (en) * 1972-03-21 1974-12-31 Toyoda Machine Works Ltd A grinding machine for generating an epitrochoidal surface on a work
DE2544666A1 (en) * 1975-10-06 1977-04-14 Grieshaber Metallwarenfab Geb GRINDING MACHINE FOR FINE MACHINING OF SPHERICAL INTERIORS
GB2115730A (en) * 1981-10-24 1983-09-14 Ntn Toyo Bearing Co Ltd Method of machining inner ring for conical roller bearing

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5646949B2 (en) * 1973-09-28 1981-11-06
JPS5657411A (en) * 1979-10-18 1981-05-19 Ikeda Bussan Co Seat having changeable contact surface
JPS6234765A (en) * 1985-08-06 1987-02-14 Mazda Motor Corp Machining for non-cylindrical workpiece
JPS62136352A (en) * 1985-12-06 1987-06-19 Amada Co Ltd Method of machining bearing guide surface
JPS62188662A (en) * 1987-02-06 1987-08-18 Bandou Kiko Kk Method for grinding glass plate by means of numerical control

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB278203A (en) * 1926-11-15 1927-10-06 Lorenz Konrad Braren Improvements in or relating to production of cycloidal curves
US2151483A (en) * 1935-06-05 1939-03-21 Arthur A Nichols Rotor generating method and machine
US3554082A (en) * 1967-05-18 1971-01-12 Meyrat & Luisoni Apparatus for tracing curvilinear paths on workpieces
US3857203A (en) * 1972-03-21 1974-12-31 Toyoda Machine Works Ltd A grinding machine for generating an epitrochoidal surface on a work
DE2544666A1 (en) * 1975-10-06 1977-04-14 Grieshaber Metallwarenfab Geb GRINDING MACHINE FOR FINE MACHINING OF SPHERICAL INTERIORS
GB2115730A (en) * 1981-10-24 1983-09-14 Ntn Toyo Bearing Co Ltd Method of machining inner ring for conical roller bearing

Also Published As

Publication number Publication date
JPH0288163A (en) 1990-03-28
EP0336312A2 (en) 1989-10-11

Similar Documents

Publication Publication Date Title
DE3272965D1 (en) Epicyclic transmission with steplessly-variable speed control, having tapered planet wheels of dual conicity
JPS5827001U (en) Cutting high-speed processing machines, especially high-speed lathes
DE3167810D1 (en) Tool for roughing, smoothing and polishing solid surfaces, particularly adapted for stony materials
EP0336312A3 (en) Computer controlled universal grinder and method for grinding hypotrochoidal, epitrochoidal and circular bearing races
JPS5615966A (en) Cam grinding machine
CN209477318U (en) A kind of turning molding machine of abnormal shape pin
CN2175666Y (en) Lapping disc for eccentric circle channel
GB1463568A (en) Machine for reproducing an article from a pattern
JPS645764A (en) Rotation device for optical fiber connector
US4891914A (en) Computer controlled universal grinder and method for grinding trochoidal and circular bearing races
JPH0123727Y2 (en)
JPH0222213Y2 (en)
JPS5590255A (en) Method and device for grinding
JPS5766851A (en) Finishing device for curved surface
JPS62100847U (en)
JPH0437709Y2 (en)
JPS6411757A (en) Grinding machine
JPH0663861A (en) Lapping device
JPS6419529A (en) Method for roughing surface of magnetic disk
JPH0223305B2 (en)
JPS55137867A (en) Glass grinding machine
JPH0243653Y2 (en)
JPS6037255Y2 (en) grinding jig
FR2314806A1 (en) Shaft centre grinding machine - advances angled grinding cone into axial end of rotating shaft which spans discs supports
KR940006707A (en) Spherical Grinding Method and Apparatus

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): CH DE FR GB IT LI NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): CH DE FR GB IT LI NL

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19910710