EP0284824A3 - Method and apparatus for cold sizing a round workpiece having multiple diameters - Google Patents

Method and apparatus for cold sizing a round workpiece having multiple diameters Download PDF

Info

Publication number
EP0284824A3
EP0284824A3 EP88103431A EP88103431A EP0284824A3 EP 0284824 A3 EP0284824 A3 EP 0284824A3 EP 88103431 A EP88103431 A EP 88103431A EP 88103431 A EP88103431 A EP 88103431A EP 0284824 A3 EP0284824 A3 EP 0284824A3
Authority
EP
European Patent Office
Prior art keywords
workpiece
sizing
round
dies
forming projections
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Withdrawn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
EP88103431A
Other languages
German (de)
French (fr)
Other versions
EP0284824A2 (en
Inventor
James Thomas Killop
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.)
Anderson Cook Inc
Original Assignee
Anderson Cook 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 Anderson Cook Inc filed Critical Anderson Cook Inc
Publication of EP0284824A2 publication Critical patent/EP0284824A2/en
Publication of EP0284824A3 publication Critical patent/EP0284824A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H3/00—Making helical bodies or bodies having parts of helical shape
    • B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
    • B21H3/022—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling combined with rolling splines, ribs, grooves or the like, e.g. using compound dies

Abstract

A method and apparatus (12) for cold sizing a round workpiece (14) having round surfaces of cylindrical shapes that are coaxial about a central axis A of the workpiece and have different diameters. A support (54,55) rotatably mounts the workpiece (14) about its central axis A between a pair of die assemblies (24a, 24b) which are spaced from each other. Each die assembly (24a,24b) includes a plurality of dies (56,58,60,62) that are respectively aligned with the round surfaces (46,48,50,52) of the workpiece (14). Movement of the die assemblies in opposite directions as each other engages sizing surfaces (66,68,70,72) of the dies with the aligned round surfaces of the workpiece to pressure size the workpiece surfaces. In one embodiment of the sizing apparatus (12), the dies assemblies (24a, 24b) have elongated shapes and are moved rectilinearly in a parallel relationship to each other to perform the sizing. Another rotary embodiment of the sizing apparatus (12') includes rotary die assemblies (24a',24b') mounted by associated spindles (85) whose rotation likewise pressure sizes the round workpiece surfaces. Both embodiments of the sizing apparatus are disclosed as including forming projections for forming projections for forming projections such as splines (82) and/or a helical thread (84) on the sized surfaces of the workpiece.
EP88103431A 1983-01-17 1984-01-13 Method and apparatus for cold sizing a round workpiece having multiple diameters Withdrawn EP0284824A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US45832583A 1983-01-17 1983-01-17
US458325 1983-01-17

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP84300204.9 Division 1984-01-13
EP84300204A Division EP0114108B1 (en) 1983-01-17 1984-01-13 Method for cold sizing a round workpiece having multiple diameters

Publications (2)

Publication Number Publication Date
EP0284824A2 EP0284824A2 (en) 1988-10-05
EP0284824A3 true EP0284824A3 (en) 1988-10-19

Family

ID=23820346

Family Applications (2)

Application Number Title Priority Date Filing Date
EP88103431A Withdrawn EP0284824A3 (en) 1983-01-17 1984-01-13 Method and apparatus for cold sizing a round workpiece having multiple diameters
EP84300204A Expired EP0114108B1 (en) 1983-01-17 1984-01-13 Method for cold sizing a round workpiece having multiple diameters

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP84300204A Expired EP0114108B1 (en) 1983-01-17 1984-01-13 Method for cold sizing a round workpiece having multiple diameters

Country Status (4)

Country Link
EP (2) EP0284824A3 (en)
AT (1) ATE39071T1 (en)
CA (1) CA1228254A (en)
DE (1) DE3475488D1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0166758A4 (en) * 1983-12-21 1987-10-19 Anderson Cook Inc Threading and projection forming on different size diameters.
IT1279081B1 (en) * 1995-11-29 1997-12-04 Pi Gi Di G Parodi PROCEDURE FOR THE CREATION OF A SPECIAL SCREW FOR FURNITURE HINGES AND SCREW OBTAINED WITH THIS PROCEDURE

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3044329A (en) * 1958-04-11 1962-07-17 Bethlehem Steel Corp Apparatus for multi-diameter thread rolling
GB1049991A (en) * 1965-03-05 1966-11-30 Herbert Ltd A Method and apparatus for rolling a screw thread and an annulus of serrations, in oneoperation, in a workpiece of circular cross-section
DE1602684A1 (en) * 1967-02-07 1970-12-03 Werkzeugmaschinenfabrik Bad Du Tool for simultaneous rolling of different diameters with the same or different profiles, in particular thread profiles
DE3127392A1 (en) * 1980-09-19 1982-04-22 Fa. Ernst Grob, 8708 Männedorf Apparatus and method for the cold rolling of profiles by rolling contact with the circumference of a rotating workpiece

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1469174A (en) * 1916-11-25 1923-09-25 John R Blakeslee Method of making spherical articles
US1446447A (en) * 1917-10-04 1923-02-27 Bock Bearing Company Method of forming rollers for roller bearings
US2632345A (en) * 1946-01-16 1953-03-24 Landis Machine Co Apparatus for forming rods, bolts, or the like
US2825251A (en) * 1952-07-19 1958-03-04 Lee P Rader Method of rolling metal
US3044332A (en) * 1959-02-17 1962-07-17 Olympic Screw & Rivet Corp Method of making rivet pins
GB1124802A (en) * 1964-09-30 1968-08-21 Marcovitch Jacob The profiling of workpieces by rolling
IL25450A (en) * 1965-03-29 1970-07-19 Rotary Profile Anstalt Profiling of annular workpieces
DE1552190A1 (en) * 1966-01-03 1971-02-18 Rotary Profile Anstalt Method and device for the manufacture of objects by rolling

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3044329A (en) * 1958-04-11 1962-07-17 Bethlehem Steel Corp Apparatus for multi-diameter thread rolling
GB1049991A (en) * 1965-03-05 1966-11-30 Herbert Ltd A Method and apparatus for rolling a screw thread and an annulus of serrations, in oneoperation, in a workpiece of circular cross-section
DE1602684A1 (en) * 1967-02-07 1970-12-03 Werkzeugmaschinenfabrik Bad Du Tool for simultaneous rolling of different diameters with the same or different profiles, in particular thread profiles
DE3127392A1 (en) * 1980-09-19 1982-04-22 Fa. Ernst Grob, 8708 Männedorf Apparatus and method for the cold rolling of profiles by rolling contact with the circumference of a rotating workpiece

Also Published As

Publication number Publication date
EP0114108A3 (en) 1984-10-17
EP0284824A2 (en) 1988-10-05
DE3475488D1 (en) 1989-01-12
EP0114108A2 (en) 1984-07-25
CA1228254A (en) 1987-10-20
EP0114108B1 (en) 1988-12-07
ATE39071T1 (en) 1988-12-15

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