GB1111217A - Improvements relating to thread forming apparatus - Google Patents

Improvements relating to thread forming apparatus

Info

Publication number
GB1111217A
GB1111217A GB5254/66A GB525466A GB1111217A GB 1111217 A GB1111217 A GB 1111217A GB 5254/66 A GB5254/66 A GB 5254/66A GB 525466 A GB525466 A GB 525466A GB 1111217 A GB1111217 A GB 1111217A
Authority
GB
United Kingdom
Prior art keywords
roll
rolls
workpiece
speed
cranks
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
GB5254/66A
Inventor
Burkhart Grob
Hermann Schulz
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.)
ERNST GROB WERKZEUG und MASCHI
Original Assignee
ERNST GROB WERKZEUG und MASCHI
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 ERNST GROB WERKZEUG und MASCHI filed Critical ERNST GROB WERKZEUG und MASCHI
Publication of GB1111217A publication Critical patent/GB1111217A/en
Expired 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
    • B21H3/04—Making by means of profiled-rolls or die rolls

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

1,111,217. Rolling threads. ERNST GROB WERKZEUG-UND MASCHINENFABRIK. 7 Feb., 1966 [9 Feb., 1965], No. 5254/66. Heading B3M. A thread is rolled on a workpiece W by means of two rolls 1 and 2 which initially rotate at the same speed, one of the rolls then being rotated slightly faster than the other in order to draw the workpiece through the narrowest gap between the rolls, and the difference in speeds then being removed. One roll is axially movable against spring pressure to permit its profile to mate with that formed on the workpiece by the other roll during speed changes in the rolls. The rolls are rotated by means of toothed worms 5 and 6, the worm 6 being axially movable by means of a lever 13 to vary the speed of rotation of the roll 2 relative to that of roll 1. The lever 13, and also a workpiece feeding bar 3<SP>1</SP>, are driven in synchronism by cranks 12 and 10 from a common rotating wheel 7a. The feeding movements performed by the bar and the roll 2 can readily be adjusted by altering the position or lengths of the cranks. The mechanism for varying the speed of roll 2 may embody epicyclic gearing or synchronously driven cams.
GB5254/66A 1965-02-09 1966-02-07 Improvements relating to thread forming apparatus Expired GB1111217A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG42792A DE1299271B (en) 1965-02-09 1965-02-09 Thread rolling machine

Publications (1)

Publication Number Publication Date
GB1111217A true GB1111217A (en) 1968-04-24

Family

ID=7127016

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5254/66A Expired GB1111217A (en) 1965-02-09 1966-02-07 Improvements relating to thread forming apparatus

Country Status (5)

Country Link
US (1) US3415091A (en)
CH (1) CH438194A (en)
DE (1) DE1299271B (en)
FR (1) FR1464355A (en)
GB (1) GB1111217A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013005158A1 (en) 2011-07-01 2013-01-10 Playtech Services (Cyprus) Limited Computerized reel-based game system and methods for operation useful in conjunction therewith

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD143219B1 (en) * 1979-06-08 1983-06-08 Manfred Krause METHOD FOR ENTERING AND ROLLING PROFILE ROLLED ROLLS
FR2460168A1 (en) * 1979-07-02 1981-01-23 Groov Pin Corp Self-tapping headless lobular insert forming method - forms longitudinally spaced chamfers or bevels on rod by orbital or helicoid movement of latter, using rod side surfaces as guide
DE4022197B4 (en) * 1990-07-12 2006-09-21 Rollwalztechnik Abele + Höltich GmbH Device for re-rolling threads
AT505118B1 (en) * 2007-03-28 2013-03-15 Miba Sinter Austria Gmbh METHOD FOR PROCESSING A TRENCHING ON A SINTERED PART
WO2014055209A1 (en) * 2012-10-02 2014-04-10 Illinois Tool Works Inc. Method and apparatus for cold forming thread rolling dies

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1107621A (en) * 1914-01-24 1914-08-18 Abraham B Landis Bolt-threading machine.
US1188461A (en) * 1914-04-16 1916-06-27 Paul H Mccain Threading-machine.
DE321464C (en) * 1916-11-21 1920-06-04 Georg Lehmann Rolling mill for leveling and reshaping rotating bodies by means of two parallel forming rollers rotating in the same direction
DE545346C (en) * 1930-08-31 1932-03-02 Bruno Reinhardt Machine for rolling threaded bolts
US2257234A (en) * 1939-12-04 1941-09-30 Wolseley Motors Ltd Machine for rolling screw threads
US2355132A (en) * 1942-01-05 1944-08-08 Acton Boet And Fine Threads Lt Thread-rolling tool or appliance
US2519164A (en) * 1945-07-24 1950-08-15 Watkins Douglas Mackenzie Thread rolling machine
US2550855A (en) * 1947-03-26 1951-05-01 Raymond P Suess Thread rolling apparatus
US2679773A (en) * 1952-05-08 1954-06-01 Reed Rolled Thread Die Co Thread rolling device having adjustably matched die rolls
US2968201A (en) * 1954-03-31 1961-01-17 Reed Rolled Thread Die Co Two roll, cylindrical die machine for thread rolling
US2932996A (en) * 1955-12-02 1960-04-19 Akashi Seisakusho Ltd Thread rolling machine
US3048064A (en) * 1958-12-17 1962-08-07 Hofer Jean Pierre Thread rolling method and apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013005158A1 (en) 2011-07-01 2013-01-10 Playtech Services (Cyprus) Limited Computerized reel-based game system and methods for operation useful in conjunction therewith

Also Published As

Publication number Publication date
DE1299271B (en) 1969-07-17
US3415091A (en) 1968-12-10
FR1464355A (en) 1966-12-30
CH438194A (en) 1967-06-30

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