US2715846A - Method of groove forming - Google Patents

Method of groove forming Download PDF

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Publication number
US2715846A
US2715846A US226572A US22657251A US2715846A US 2715846 A US2715846 A US 2715846A US 226572 A US226572 A US 226572A US 22657251 A US22657251 A US 22657251A US 2715846 A US2715846 A US 2715846A
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US
United States
Prior art keywords
blank
rolling
rotation
axis
rollers
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
US226572A
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English (en)
Inventor
Grob Ernst
Grob Benjamin
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.)
GROB Inc
Original Assignee
GROB 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 GROB Inc filed Critical GROB Inc
Priority to US226572A priority Critical patent/US2715846A/en
Priority to CH304101D priority patent/CH304101A/de
Priority to DEG8822A priority patent/DE1016222B/de
Priority to GB12502/52A priority patent/GB721054A/en
Priority to FR1061949D priority patent/FR1061949A/fr
Application granted granted Critical
Publication of US2715846A publication Critical patent/US2715846A/en
Priority to CH352987D priority patent/CH352987A/de
Priority to FR1163900D priority patent/FR1163900A/fr
Priority to DEG20779A priority patent/DE1034127B/de
Priority to GB32106/56A priority patent/GB808865A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B21H5/00—Making gear wheels, racks, spline shafts or worms
    • B21H5/02—Making gear wheels, racks, spline shafts or worms with cylindrical outline, e.g. by means of die rolls
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/16—Longitudinal screw clamp
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49377—Tube with heat transfer means
    • Y10T29/49378—Finned tube
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49377—Tube with heat transfer means
    • Y10T29/49378—Finned tube
    • Y10T29/49382—Helically finned

Definitions

  • This invention relates to the art of metal rolling.
  • a general aim of the present invention is to provide a novel method of metal rolling particularly adapted for the rapid and economical production of gears and other similar repetitively grooved essentially cylindrical shapes.
  • a more specific object is to provide an improved rolling method for the purpose indicated in which each of the several grooves is progressively formed by the repetitive rolling engagement of a forming roller or succession of like rollers therewith.
  • Another object is to provide a gear forming method in which the gear teeth are formed by a metal rolling action that progresses across the face of the gear or substantially lengthwise of the axis thereof.
  • Figure l is a sectional view of gear rolling equipment capable of use in carrying out the method of the present invention. This view is taken substantially along the line 11 of Fig. 2.
  • Fig. 2 is a sectional view taken substantially along the line 2-2 of Fig. 1.
  • Fig. 3 is a fragmentary view similar to Fig. 2 showing a double acting roller arrangement.
  • Fig. 4 is a fragmentary view in plan illustrating an arrangement of parts for use in rolling helical gears.
  • a gear blank G is repeatedly operated upon by a rolling force herein exemplified by one or more forming rollers movable into and out of engagement with the blank.
  • a rolling force herein exemplified by one or more forming rollers movable into and out of engagement with the blank.
  • four such rollers are shown, each being journalled for free individual rotation within a suitable rotary carrier head 11.
  • the head 11 is rigidly mounted for rotation about a fixed axis A, and is shown fixed to a supporting shaft 12 through which it is driven.
  • the several rollers 10 are brought successively and repeatedly into forming engagement with the blank G by continuous rotation of the head 11, and that each is free to rotate about its individual axis while in engagement with the blank.
  • the axis of rotation of each roller is parallel to the axis A of the carrier head 11 in the arrangement shown.
  • the blank G is shown releasably but securely fixed to a shaft 13 by which it is rigidly supported and by which it is rotated or indexed in timed relation with the rotary head 11.
  • the blank is keyed to the reduced end 14 of the shaft 13, and clamped between an end shoulder on the shaft and a spacer sleeve 15, a nut 16 supplying the clamping pressure.
  • the axis of rotation B of the blank is substantially at right angles to the axis of rotation A of the head 11.
  • the rate of rotation of the carrier head 11 is an exact multiple of the rate of rotation of the blank G. That is to say, during each complete revolution of the blank, the head 11 makes several complete revolutions, at least one for each of the several grooves to be formed on the blank.
  • the head 11 is rotated continuously, and although the blank may be in termittently rotated and held stationary during engagement with each roller, the blank is preferably continuously rotated so as to utilize the higher operating speeds made available by continuous operation.
  • the blank G is fed into and through the path of travel and zone of operation of the rollers 10 by advance of the shaft 13 along its axis.
  • the several rollers 10 are of substantially identical shape. In this instance each is shown equipped with a plurality of axially spaced, parallel, straight sided, peripheral ribs 17 and interposed grooves 18 whose combined cross-sectional contour corresponds essentially to that of a rack gear.
  • Each of the rollers 10 is axially fixed in the carrier head 11 with the projecting ribs 17 of each accurately positioned to reenter and properly mesh with the gashes, grooves, or tooth spaces previously formed in the blank G during the rolling process.
  • the ribs 17 of each roller are preferably disposed in planes ofiset from corresponding ribs of a preceding roller, the degree of offset being such as to compensate for the indexing rotation of the blank G.
  • a penetration of maximum radial depth of course is attained when the leading face of the blank arrives at a dead center position immediately beneath the axis A of the carrier head 11. Thereafter, as the feed and indexing rotation of the blank continues, the repeated rolling action of the successive rollers progresses across the face of the blank until the several gashes are enlarged to form slots or grooves of uniform depth and of the desired length, and in this instance extending completely through the blank and conforming essentially to the tooth spaces of a conventional spur gear.
  • indexing of the blank G may be effected by either intermittent or continuous rotation, but when the blank is continuously rotated, it is desirable, under some conditions of operation, that compensation be made for such rotation during engagement of the blank with the rollers 10. This is accomplished by a slight modification of the angular relation between the axis A of the head 11 and the axis B of the blank. More particularly, with the head 11 and blank G rotating in the directions indicated in Fig. 1, a slight angular displacement of the axis A in a direction to depress the right end thereof below the plane of the paper will induce each roller to travel tangentially with the rotating blank, as well as across the face of the blank, during its engagement with the blank. This correction angle is readily computed.
  • this correction angle is an angle whose sine is equal to the tooth pitch divided by the distance travelled by the roller .ribs 17 during onev complete revolution of the head 11.
  • the above noted correction may be effected by adjusting either the axis A of the head 11 or the axis B of the blank G through the correction angle thus calculated. Also, under some conditions of operation, when such a correction angle is used, it is desirable to also angularly adjust the axes of the individual rollers, so that as each engages the blank G the ribs 17 thereof will lie in planes parallel to the grooves to be rolled.
  • the blank in the form of a bar G, is fed lengthwise between two opposed rotary heads 11, each carrying a set of rollers of a kind and in the same manner as hereinabove described.
  • the rollers 10 are so disposed as to engage and operate on opposite sides of the blank substantially simultaneously so that each radial thrust imposed on the blank G by each roller of one set is substantially counter-balanced by that imposed by a roller of the other set.
  • the blank G is advanced lengthwise between the two sets of rollers 10, it is also rotated about its axis at a rate definitely related to the rate of rotation of the heads 11, in much the same manner and for the same purpose as the blank G previously described.
  • the metal rolling methods hereinabove described may be utilized in the production of helical as well as spur gears.
  • the rollercarrying head 11 is angularly disposed relative to the blank G so that the angle between the axis B of the blank and plane of rotation of the rollers 10 is equal to the helix angle of the gear to be produced.
  • the roller-carrier head 11 and the blank G are rotated in definite timed relation and the blank is also fed, preferably along its axis, in substantially the. same manner as previously described.
  • an additional rotation is imparted to the blank. at a rate definitely related to the feed rate of the blank and such that the ribs 17 of the rollers will follow the helix angle of the gear.
  • angular position of the roller-carrying head may also be modified in the manner hereinabove described to compensate for continued rotation of the blank.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Metal Rolling (AREA)
US226572A 1951-05-16 1951-05-16 Method of groove forming Expired - Lifetime US2715846A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
US226572A US2715846A (en) 1951-05-16 1951-05-16 Method of groove forming
CH304101D CH304101A (de) 1951-05-16 1952-05-05 Verfahren zum Profilieren von Metallkörpern und Einrichtung zur Durchführung dieses Verfahrens.
DEG8822A DE1016222B (de) 1951-05-16 1952-05-12 Verfahren und Vorrichtung zum Erzeugen gerader oder zur Werkstueckachse schraeg verlaufender, paralleler Profile, z.B. von Verzahnungen, durch einen Walzvorgang
FR1061949D FR1061949A (fr) 1951-05-16 1952-05-16 Procédé pour rainurer des corps métalliques et dispositif pour l'application de ce procédé
GB12502/52A GB721054A (en) 1951-05-16 1952-05-16 Process and apparatus for the shaping of metal bodies by rolling
CH352987D CH352987A (de) 1951-05-16 1955-10-22 Verfahren zum Profilieren von Metallkörpern und Einrichtung zur Durchführung diese Verfahrens
FR1163900D FR1163900A (fr) 1951-05-16 1956-10-22 Machine à profiler les métaux par laminage
DEG20779A DE1034127B (de) 1951-05-16 1956-10-22 Verfahren zum Erzeugen gerader oder zur Werkstueckachse schraeg verlaufender, paralleler Profile, z. B. von Verzahnungen, durch einen Walzvorgang und Einrichtung zur Durchfuehrung dieses Verfahrens
GB32106/56A GB808865A (en) 1951-05-16 1956-10-22 Profile rolling machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US226572A US2715846A (en) 1951-05-16 1951-05-16 Method of groove forming

Publications (1)

Publication Number Publication Date
US2715846A true US2715846A (en) 1955-08-23

Family

ID=22849454

Family Applications (1)

Application Number Title Priority Date Filing Date
US226572A Expired - Lifetime US2715846A (en) 1951-05-16 1951-05-16 Method of groove forming

Country Status (5)

Country Link
US (1) US2715846A (de)
CH (2) CH304101A (de)
DE (2) DE1016222B (de)
FR (2) FR1061949A (de)
GB (2) GB721054A (de)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2905033A (en) * 1955-04-06 1959-09-22 Grob Benjamin Groove rolling machine
US2991672A (en) * 1958-05-16 1961-07-11 Maag Zahnraeder & Maschinen Ag Machine for the cold form generating of cylindrical workpieces
US3043169A (en) * 1959-05-14 1962-07-10 Michigan Tool Co Apparatus for pressure forming toothed elements
US3094888A (en) * 1957-09-09 1963-06-25 Grob Benjamin Roller tool mounting and driving means
US3096669A (en) * 1958-09-15 1963-07-09 Kent Owens Machine Co Metal forming machine and method
US3137926A (en) * 1957-04-02 1964-06-23 Fairey Eng Formation of fins on metal bar or tube stock
US3141051A (en) * 1960-09-14 1964-07-14 Elm Coated Fabrics Company Inc Method and apparatus for preparing special surface finishes
US3142207A (en) * 1962-04-17 1964-07-28 Grob Benjamin Grooving method and apparatus
US3830087A (en) * 1970-07-01 1974-08-20 Sumitomo Metal Ind Method of making a cross-rifled vapor generating tube
US5659955A (en) * 1994-01-21 1997-08-26 Plamper; Gerhard Method of making powder metal helical gears
US6705949B2 (en) 2001-08-27 2004-03-16 Visteon Global Technologies, Inc. Shaft spline having a straight side tooth profile
US20110083485A1 (en) * 2008-06-09 2011-04-14 Zf Friedrichshafen Ag Roll forming method for producing longitudinally toothed profiled bodies in pot-shaped cylindrical workpieces
CN102500690A (zh) * 2011-12-26 2012-06-20 天津天海同步科技股份有限公司 一种薄壁旋转体零件的加工刀具及应用其的加工设备
US20210394250A1 (en) * 2018-11-15 2021-12-23 Ernst Grob Ag Apparatus and method for profiling workpieces by cold forming

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1175192B (de) * 1959-11-26 1964-08-06 Joachim Pfeiffer Dipl Ing Verfahren und Vorrichtung zum Abstrecken von strangfoermigem Gut, z. B. Band
DE2219663A1 (de) * 1972-04-21 1973-10-25 Grob Kaltwalzmasch Ernst Rollkopf zum kaltwalzen von vielkeilwellen oder zahnraedern
FR2576228B1 (fr) * 1985-01-23 1989-12-01 Escofier Tech Sa Procede et dispositif pour la realisation de gorges sur une paroi de revolution
US5054146A (en) * 1988-12-08 1991-10-08 Videx-Wire Products (Pty.) Limited Anchor bolt
CH687597A5 (de) * 1993-02-25 1997-01-15 Grob Ernst Fa Verfahren zur Zahnstangenherstellung, danach hergestellte Zahnstange und Vorrichtung zur Verfahrensdurchfuehrung.
DE102007039959B4 (de) 2007-08-23 2013-06-06 Profiroll Technologies Gmbh Verfahren zum Kaltwalzen von längsgerichteten Verzahnungen und Profilen bei langen wellenförmigen Werkstücken und Profilwalzmaschine hierzu
DE102010053547A1 (de) * 2010-12-04 2012-06-06 Form Technology Gmbh Verfahren und Vorrichtung zur Herstellung eines innen- und außenverzahnten topfförmigen Blechteils
DE102011011886B4 (de) * 2011-02-21 2012-12-27 Profiroll Technologies Gmbh Verfahren zum Verdichten der Oberfläche von Sintermetallbauteilen
DE102012024030A1 (de) 2012-12-10 2014-06-12 Profiroll Technologies Gmbh Vorrichtung zur Verdichtung und Kalibrierung von Sintermetallbauteilen, insbesondere Sintermetallnocken, sowie ein Verfahren hierzu
CN105436327B (zh) * 2014-08-12 2018-02-02 博世华域转向系统（烟台）有限公司 一种转向管柱的下转向轴花键用铆压装置

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US58134A (en) * 1866-09-18 Improvement in machines for making screws
US74570A (en) * 1868-02-18 Improved peooess of eoliing hoes
US97691A (en) * 1869-12-07 Improved machine for swaging threads on screws
US857576A (en) * 1906-08-13 1907-06-25 George A Bates Machine for raising flutes on drawing and other rolls.
US989643A (en) * 1908-10-30 1911-04-18 Tubes Ltd Manufacture of metal tubes or the like.
US1017569A (en) * 1910-10-19 1912-02-13 Cyrus Lewis Sr Riffling-machine.
US1128613A (en) * 1912-06-29 1915-02-16 Frederick William Lanchester Apparatus for cutting worm-gear.
US1499534A (en) * 1922-06-05 1924-07-01 John A Katzenmeyer Reducing cylindrical bodies
US1545070A (en) * 1921-09-23 1925-07-07 Niles Bementpond Co Process of generating gears
US1580975A (en) * 1924-01-03 1926-04-13 Retterath Valentin Device for making corrugated cylinders
US1887510A (en) * 1931-03-28 1932-11-15 Curtis E Honeycutt Method and means for refluting textile rolls
US1929987A (en) * 1930-06-09 1933-10-10 Alice F Mead Rod reducing apparatus
US2565780A (en) * 1946-04-26 1951-08-28 Nat Tube Co Roller die
US2645954A (en) * 1949-03-30 1953-07-21 Servel Inc Thread forming method and apparatus

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE295561C (de) *
CH46879A (fr) * 1909-04-24 1910-06-01 Raoul Petite Machine pour enserrer des brins d'une pièce d'attache flexible dans une masse métallique
CH52298A (de) * 1910-02-14 1911-11-01 Mannesmann Ag Walzwerk mit in sich geschlossenen Umlaufbahnen sich bewegenden Arbeitswalzen
CH50733A (de) * 1910-02-14 1911-06-16 Mannesmann Ag Walzwerk mit in sich geschlossenen Umlaufbahnen sich bewegenden Arbeitswalzen
CH52216A (de) * 1910-02-14 1911-11-01 Mannesmann Ag Walzwerk mit in sich geschlossenen Umlaufbahnen sich bewegenden Arbeitswalzen
FR477486A (fr) * 1913-08-28 1915-10-22 Harold Napier Anderson Procédé de fabrication de roues dentées
US1964746A (en) * 1932-06-09 1934-07-03 Francis P Sloan Floor roughing machine
NL59098C (de) * 1942-01-16
BE453299A (de) * 1942-09-04

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US58134A (en) * 1866-09-18 Improvement in machines for making screws
US74570A (en) * 1868-02-18 Improved peooess of eoliing hoes
US97691A (en) * 1869-12-07 Improved machine for swaging threads on screws
US857576A (en) * 1906-08-13 1907-06-25 George A Bates Machine for raising flutes on drawing and other rolls.
US989643A (en) * 1908-10-30 1911-04-18 Tubes Ltd Manufacture of metal tubes or the like.
US1017569A (en) * 1910-10-19 1912-02-13 Cyrus Lewis Sr Riffling-machine.
US1128613A (en) * 1912-06-29 1915-02-16 Frederick William Lanchester Apparatus for cutting worm-gear.
US1545070A (en) * 1921-09-23 1925-07-07 Niles Bementpond Co Process of generating gears
US1499534A (en) * 1922-06-05 1924-07-01 John A Katzenmeyer Reducing cylindrical bodies
US1580975A (en) * 1924-01-03 1926-04-13 Retterath Valentin Device for making corrugated cylinders
US1929987A (en) * 1930-06-09 1933-10-10 Alice F Mead Rod reducing apparatus
US1887510A (en) * 1931-03-28 1932-11-15 Curtis E Honeycutt Method and means for refluting textile rolls
US2565780A (en) * 1946-04-26 1951-08-28 Nat Tube Co Roller die
US2645954A (en) * 1949-03-30 1953-07-21 Servel Inc Thread forming method and apparatus

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2905033A (en) * 1955-04-06 1959-09-22 Grob Benjamin Groove rolling machine
US3137926A (en) * 1957-04-02 1964-06-23 Fairey Eng Formation of fins on metal bar or tube stock
US3094888A (en) * 1957-09-09 1963-06-25 Grob Benjamin Roller tool mounting and driving means
US2991672A (en) * 1958-05-16 1961-07-11 Maag Zahnraeder & Maschinen Ag Machine for the cold form generating of cylindrical workpieces
US3032871A (en) * 1958-05-16 1962-05-08 Maag Zahnraeder & Maschinen Ag Method for the cold form generating of cylindrical workpieces
US3096669A (en) * 1958-09-15 1963-07-09 Kent Owens Machine Co Metal forming machine and method
US3043169A (en) * 1959-05-14 1962-07-10 Michigan Tool Co Apparatus for pressure forming toothed elements
US3141051A (en) * 1960-09-14 1964-07-14 Elm Coated Fabrics Company Inc Method and apparatus for preparing special surface finishes
US3142207A (en) * 1962-04-17 1964-07-28 Grob Benjamin Grooving method and apparatus
US3830087A (en) * 1970-07-01 1974-08-20 Sumitomo Metal Ind Method of making a cross-rifled vapor generating tube
US5659955A (en) * 1994-01-21 1997-08-26 Plamper; Gerhard Method of making powder metal helical gears
US6705949B2 (en) 2001-08-27 2004-03-16 Visteon Global Technologies, Inc. Shaft spline having a straight side tooth profile
US20110083485A1 (en) * 2008-06-09 2011-04-14 Zf Friedrichshafen Ag Roll forming method for producing longitudinally toothed profiled bodies in pot-shaped cylindrical workpieces
US8539806B2 (en) * 2008-06-09 2013-09-24 Zf Friedrichshafen Ag Roll forming method for producing longitudinally toothed profiled bodies in pot-shaped cylindrical workpieces
CN102500690A (zh) * 2011-12-26 2012-06-20 天津天海同步科技股份有限公司 一种薄壁旋转体零件的加工刀具及应用其的加工设备
US20210394250A1 (en) * 2018-11-15 2021-12-23 Ernst Grob Ag Apparatus and method for profiling workpieces by cold forming

Also Published As

Publication number Publication date
CH352987A (de) 1961-03-31
CH304101A (de) 1954-12-31
GB808865A (en) 1959-02-11
DE1016222B (de) 1957-09-26
DE1034127B (de) 1958-07-17
FR1163900A (fr) 1958-10-02
GB721054A (en) 1954-12-29
FR1061949A (fr) 1954-04-16

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