US3498095A - Profiling of annular workpieces - Google Patents

Profiling of annular workpieces Download PDF

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Publication number
US3498095A
US3498095A US537197A US3498095DA US3498095A US 3498095 A US3498095 A US 3498095A US 537197 A US537197 A US 537197A US 3498095D A US3498095D A US 3498095DA US 3498095 A US3498095 A US 3498095A
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United States
Prior art keywords
mandrel
workpiece
rollers
profiling
control ring
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
US537197A
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English (en)
Inventor
Jacob Marcovitch
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ROTARY PROFILE ANSTALT
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ROTARY PROFILE ANSTALT
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Publication date
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Publication of US3498095A publication Critical patent/US3498095A/en
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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
    • B21H1/00—Making articles shaped as bodies of revolution
    • B21H1/06—Making articles shaped as bodies of revolution rings of restricted axial length
    • B21H1/12—Making articles shaped as bodies of revolution rings of restricted axial length rings for ball or roller bearings
    • 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
    • B21H1/00—Making articles shaped as bodies of revolution
    • B21H1/14—Making articles shaped as bodies of revolution balls, rollers, cone rollers, or like bodies

Definitions

  • the workpiece is an annulus, and a mandrel is threaded loosely through it and the mandrel ends roll on at least two of the rollers, the workpiece being profiled between the mandrel and a control ring which surrounds the workpiece and limits its diametral spread. Surplus workpiece material is extruded through an escape gap.
  • This invention relates to the profiling of annular workpieces by rolling.
  • a machine for profiling an annular workpiece consists of at least three rollers with convex surfaces arranged with their axes parallel and spaced apart to define a space between the roller surfaces, a mandrel located within that space, the mandrel having a central zone and ends projecting from the central zone and supported in rolling contact on the surfaces of at least two of the rollers; a control ring eccentrically surrounding the central zone of the mandrel and engaging at least one of the rollers not engaged by the mandrel and defining with the central zone of the mandrel a recess to entrap a segment of a workpiece located within the control ring and threaded over the central zone of the mandrel, the recess being closed at one axial end and having at or near the other axial end an escape gap for surplus workpiece material; the control ring being axially at least as long as the finished workpiece; means to rotate at least one of the rollers to cause rotation of the mandrel and workpiece and control
  • FIGURE 1 is a partly sectioned end view of a machine designed for profiling annular workpieces, using a control ring to control the outside diameter;
  • FIGURE 2 is a section on the line 22 of FIG. 1;
  • FIGURE 3 is a partial sectional view illustrating the rolling of a ring controlled in only one axial direction.
  • rollers 10, 12 and 14 there are three convex rollers 10, 12 and 14, with their axes parallel and arranged triangular-wise, for the roller surfaces to define a profiling space.
  • the rollers and 14 are circumferentially recessed.
  • One of the rollers 14 is mounted on an axle 16 which is displaceable in the direction of arrow A
  • a second roller 12 is mounted on an axle 20 displaceable in the direction of the arrow B
  • the third roller 10 is mounted on a fixed axle 18.
  • the roller 10 is driven by any 3,498,095 Patented Mar. 3, 1970 suitable means which, being irrelevant to the invention, is not illustrated.
  • the machine is shown at the end of a rolling operation.
  • An annular workpiece 36 surrounds a central zone of a mandrel 38 that is located in the space between the rollers.
  • the central zone of the mandrel is recessed and profiled to impose the required shape on the inner face of the workpiece.
  • the mandrel ends project beyond the central zone to roll on the surfaces of the rollers 10 and 14.
  • the mandrel is thus floatably mounted in the sense that it is not confined in bearings.
  • a control ring 52 surrounds the workpiece 36. It bears against the surface of the roller 12 and its inner surface profiles the radially outer face of the workpiece.
  • the control ring defines a recess in which a segment of the workpiece is entrapped, the recess being closed at one axial end by a wall 57 of the recess in the mandrel.
  • an escape gap 56 is provided between the mandrel and control ring to ensure complete filling of the profiling space during the rotation of the workpiece, the flash formed by material forced or extruded into the gap being removed in a subsequent operation, such as machining or grinding. Since there is invariably lack of uniformity in the blank workpieces fed to the machine, the amount of surplus material extruded as flash will vary from one workpiece to another, care being taken to ensure that no workpieces below a known minimum volume are used.
  • Suitable stop means is provided to limit the approach of the rollers towards one another, and thus to control the wall thickness of the workpiece.
  • the stop means might take the form of surfaces such as flanges (not illustrated) on the roller 12 to make contact with the ends of the mandrel, or might be known devices to limit the travel of the rollers 12 and '14 along the directions of the arrows A and B.
  • Axial misalignment of the mandrel, rollers and control ring is prevented by the stepped construction of the mandrel ends and by matching the axial length of the control ring with that of the recess in the surfaces of the rollers 10 and 14.
  • one of the main features of the machine is the precise control of all dimensions of the finished article-outer diameter, wall thickness and axial lengthobtained by entrapping a segment of it around the entire circumference within a fully enclosed space (save for escape gaps) so that the finished article comes from the machine fully and precisely finished with no after operations other than the minor one of removal of flash.
  • the rollers are moved apart to allow the mandrel and the workpiece threaded over it, with the control ring loosely surrounding the workpiece, to be located within the profiling space between the rollers; and the rollers are moved together and simultaneously rotated by driving the roller 10 to rotate the workpiece and control ring, and mandrel.
  • the workpiece which is initially, of course, of lesser diameter than the inner diameter of the control ring and lesser length axially than the length of the profiling recess in the mandrel is squeezed within the enclosed recess within which it is entrapped and which diminishes in volume as profiling proceeds. Diametral spread of the workpiece is limited by the workpiece coming into contact with the inside face of the control ring.
  • Axial or lateral spread is limited by the walls of the recess in the mandrel. Wall thickness is limited by the stop means for the advance of the rollers. Surplus material, when the recess has been totally filled, extrudes into the gaps to form flashes.
  • the recess when entrapment in the recess is referred to, what is meant is that a segmentof the annular workpiece is confined in the recess defined by the mandrel recess and the control ring inner face, and that, in the space or zone in which deformation is taking place, the recess is closed at the inner and outer faces of the segment. It is also closed at both its axial ends (at least during the later stages of profiling), except where the escape gap is provided.
  • the recess is, of course, open at the other two sides to allow the ring to rotate and to bring its periphery progressively through the recess for profiling.
  • the machine is versatile in operation in that the sizes or inner profiles of workpieces and of the finished products can be easily and quickly varied merely by removing the floating mandrel and inserting another which may be one of a set, with a different diameter or a different profile. By using another control ring of different size or profile, an article with a correspondingly different outer size or profile is produced.
  • the deforming pressure applied to the workpiece is over a small contact area between the workpiece and the mandrel, while the force applied to the mandrel itself can be considerable. Very large forces per unit area are thus generated on the workpiece for moderate forces applied to the mandrel, and this brings within the scope of machine the production of many components which are not capable of being made by conventional profiling systems.
  • the deformation resulting from the large forces generated can therefore be substantial, and the control of the workpiece in all dimensions enables the large deformation to be put to effective use, while ensuring that the finished products are precisely uniform.
  • rollers there may be more than three rollers, with their axes parallel and arranged to surround a space, the rollers being movable relatively together, and at least one being driven.
  • Apparatus for profiling an annular workpiece consisting of at least three rollers with convex surfaces arranged with their axes parallel and spaced apart to define a space between their convex surfaces; a mandrel cated within that space, the mandrel having a central zone and ends projecting from the central zone and supported in rolling contact on the surfaces of at least tWo of the rollers; a control ring eccentrically surrounding the central zone of the mandrel and engaging at least one roller not engaged by the mandrel and defining with the central zone of the mandrel a recess to entrap a segment of a workpiece located within the control ring and threaded over the central zone of the mandrel, the recess being closed at one axial end and having at or near the other end an escape gap for surplus workpiece material; the control ring being axially at least as long as the finished workpiece; means to rotate at least one of the rollers to cause rotation of the mandrel and workpiece and control ring

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Forging (AREA)
US537197A 1965-03-29 1966-03-24 Profiling of annular workpieces Expired - Lifetime US3498095A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA651649 1965-03-29

Publications (1)

Publication Number Publication Date
US3498095A true US3498095A (en) 1970-03-03

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ID=25560887

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Application Number Title Priority Date Filing Date
US537197A Expired - Lifetime US3498095A (en) 1965-03-29 1966-03-24 Profiling of annular workpieces

Country Status (10)

Country Link
US (1) US3498095A (xx)
AT (2) AT286216B (xx)
BE (1) BE678590A (xx)
CH (1) CH454785A (xx)
DE (2) DE1552188A1 (xx)
ES (1) ES324868A1 (xx)
GB (2) GB1137838A (xx)
IL (1) IL25450A (xx)
NL (1) NL6604046A (xx)
SE (1) SE326155B (xx)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3803890A (en) * 1969-12-31 1974-04-16 Nat Res Dev Rolling machines
US3969889A (en) * 1973-10-31 1976-07-20 Kumakichi Araya Method of manufacturing stepped bushings for chains
US4126029A (en) * 1976-12-02 1978-11-21 General Electric Company Method of forming hollow cylindrical parts with internal contours
US4316374A (en) * 1977-10-31 1982-02-23 Honda Giken Kogyo Kabushiki Kaisha Method of manufacturing seamless wheel rims
EP0114108A2 (en) * 1983-01-17 1984-07-25 Anderson-Cook, Inc. Method for cold sizing a round workpiece having multiple diameters
WO2004020857A1 (de) * 2002-08-09 2004-03-11 Minebea Co., Ltd. Einrichtung und verfahren zur axialen positionierung eines bauteils an einer welle
US20170008066A1 (en) * 2014-02-25 2017-01-12 Hatebur Umformmaschinen Ag Ring Rolling Device
RU2611615C1 (ru) * 2015-10-08 2017-02-28 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Саратовский государственный технический университет имени Гагарина Ю.А." (СГТУ имени Гагарина Ю.А.) Установка для раскатки и стабилизации дорожек качения шариковых подшипников
EP3184192A4 (en) * 2014-08-22 2018-05-30 NSK Ltd. Method of manufacturing ring-like member and manufacturing apparatus for same

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2010155B (en) * 1977-10-31 1982-03-10 Honda Motor Co Ltd Method of manufacturing seamless wheel rims
GB2124948B (en) * 1982-07-31 1986-01-02 Formflo Ltd Ring rolling
JPS6462239A (en) * 1987-09-01 1989-03-08 Kyoei Steel Ltd Ring body forming device
US5882123A (en) * 1997-06-03 1999-03-16 The Timken Company Roll-formed bearing race and process for producing the same

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US705518A (en) * 1901-10-18 1902-07-22 Bettendorf Metal Wheel Co Machine for forming wheel-hubs from tubular blanks.
US721210A (en) * 1901-10-03 1903-02-24 Max Mannesmann Art of rolling tubes.
US899436A (en) * 1907-06-29 1908-09-22 Edgar Ashman Machine for rolling metal rings.
US954245A (en) * 1909-04-26 1910-04-05 Standard Steel Works Company Means for rolling wheels.
US999467A (en) * 1908-11-30 1911-08-01 Hugo Sack Method of and apparatus for producing structural shapes.
US1045161A (en) * 1908-04-15 1912-11-26 Adolph W Machlet Straightening apparatus.
US1493836A (en) * 1920-12-02 1924-05-13 Amsy L Wurster Roll press
US1779185A (en) * 1926-08-14 1930-10-21 Meiser Josef Apparatus for the production of section iron with box-shaped cross sections
US2508517A (en) * 1945-10-01 1950-05-23 Calumet And Hecla Cons Copper Method of forming integral fins on tubing
US3230606A (en) * 1965-06-28 1966-01-25 Saito Tadashi Method and apparatus for rolling rings
US3345845A (en) * 1963-09-30 1967-10-10 Marcovitch Jacob Profiling methods and machines
US3382693A (en) * 1965-03-02 1968-05-14 Vni Kt I Podshipnikovoi Promy Ring rolling tool

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US721210A (en) * 1901-10-03 1903-02-24 Max Mannesmann Art of rolling tubes.
US705518A (en) * 1901-10-18 1902-07-22 Bettendorf Metal Wheel Co Machine for forming wheel-hubs from tubular blanks.
US899436A (en) * 1907-06-29 1908-09-22 Edgar Ashman Machine for rolling metal rings.
US1045161A (en) * 1908-04-15 1912-11-26 Adolph W Machlet Straightening apparatus.
US999467A (en) * 1908-11-30 1911-08-01 Hugo Sack Method of and apparatus for producing structural shapes.
US954245A (en) * 1909-04-26 1910-04-05 Standard Steel Works Company Means for rolling wheels.
US1493836A (en) * 1920-12-02 1924-05-13 Amsy L Wurster Roll press
US1779185A (en) * 1926-08-14 1930-10-21 Meiser Josef Apparatus for the production of section iron with box-shaped cross sections
US2508517A (en) * 1945-10-01 1950-05-23 Calumet And Hecla Cons Copper Method of forming integral fins on tubing
US3345845A (en) * 1963-09-30 1967-10-10 Marcovitch Jacob Profiling methods and machines
US3382693A (en) * 1965-03-02 1968-05-14 Vni Kt I Podshipnikovoi Promy Ring rolling tool
US3230606A (en) * 1965-06-28 1966-01-25 Saito Tadashi Method and apparatus for rolling rings

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3803890A (en) * 1969-12-31 1974-04-16 Nat Res Dev Rolling machines
US3969889A (en) * 1973-10-31 1976-07-20 Kumakichi Araya Method of manufacturing stepped bushings for chains
US4126029A (en) * 1976-12-02 1978-11-21 General Electric Company Method of forming hollow cylindrical parts with internal contours
US4316374A (en) * 1977-10-31 1982-02-23 Honda Giken Kogyo Kabushiki Kaisha Method of manufacturing seamless wheel rims
EP0114108A2 (en) * 1983-01-17 1984-07-25 Anderson-Cook, Inc. Method for cold sizing a round workpiece having multiple diameters
EP0114108A3 (en) * 1983-01-17 1984-10-17 Anderson-Cook, Inc. Method and apparatus for cold sizing a round workpiece having multiple diameters
WO2004020857A1 (de) * 2002-08-09 2004-03-11 Minebea Co., Ltd. Einrichtung und verfahren zur axialen positionierung eines bauteils an einer welle
US20170008066A1 (en) * 2014-02-25 2017-01-12 Hatebur Umformmaschinen Ag Ring Rolling Device
EP3110577B1 (de) 2014-02-25 2018-03-28 Hatebur Umformmaschinen AG Ringwalzvorrichtung
US10413963B2 (en) * 2014-02-25 2019-09-17 Hatebur Umformmaschinen Ag Ring rolling device
EP3184192A4 (en) * 2014-08-22 2018-05-30 NSK Ltd. Method of manufacturing ring-like member and manufacturing apparatus for same
US10583475B2 (en) 2014-08-22 2020-03-10 Nsk Ltd. Method for manufacturing ring-shaped member and manufacturing apparatus for same
RU2611615C1 (ru) * 2015-10-08 2017-02-28 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Саратовский государственный технический университет имени Гагарина Ю.А." (СГТУ имени Гагарина Ю.А.) Установка для раскатки и стабилизации дорожек качения шариковых подшипников

Also Published As

Publication number Publication date
AT271362B (de) 1969-05-27
ES324868A1 (es) 1967-02-16
GB1137838A (en) 1968-12-27
DE1552188A1 (de) 1971-04-15
DE1777283A1 (de) 1971-04-22
BE678590A (xx) 1966-09-01
GB1137839A (en) 1968-12-27
CH454785A (de) 1968-04-30
IL25450A (en) 1970-07-19
SE326155B (xx) 1970-07-20
NL6604046A (xx) 1966-09-30
AT286216B (de) 1970-11-25

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