US3461701A - Rolling of cylindrical components having non-planar ends - Google Patents

Rolling of cylindrical components having non-planar ends Download PDF

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Publication number
US3461701A
US3461701A US634945A US3461701DA US3461701A US 3461701 A US3461701 A US 3461701A US 634945 A US634945 A US 634945A US 3461701D A US3461701D A US 3461701DA US 3461701 A US3461701 A US 3461701A
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United States
Prior art keywords
blank
rollers
cheeks
rolling
circumference
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Expired - Lifetime
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US634945A
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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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    • 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
    • B21H1/02—Making articles shaped as bodies of revolution discs; disc wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/28—Making machine elements wheels; discs
    • B21K1/32—Making machine elements wheels; discs discs, e.g. disc wheels

Definitions

  • a cylindrical article is made by a profiling operation consisting in gripping a blank between side cheeks which bear on its end and rollers which bear on its circumference, rotating the side cheeks and rollers, and forcing the cheeks towards each other to thin it and profile its. ends.
  • the cheeks are initially inclined to each other and are progressively tilted into parallelism.
  • the rollers are moved outwards to make way for the diametral spread, and are finally forced inwardly to compact the blank and profile its circumference.
  • This invention relates to the manufacture of cylindrical articles having one or both ends nonplanar.
  • the article may be solid or pierced along its axis.
  • invention is particularly suited to the manufacture of articles having a diameter considerably greater than their thickness, such as railway wheels and the like.
  • the object of this invention is to provide a rolling process and apparatus which ensures that the blank is well compacted and worked throughout its mass but which requires only moderate power for its operation.
  • Another object is to provide a rolling process and apparatus capable of working on an unpierced blank such as a slug cropped from a bar, without preforming the blank.
  • a process of manufacturing a cylindrical article by a profiling operation consists in gripping a blank between juxtaposed side cheeks that are tilted at an angle to each other and bear on a portion of the end surfaces of the blank, and between rollers located around the blank to grip its circumference, rotating the side checks to impose rotation on the blank and the rollers, forcing the side cheeks towards each other to thin the blank and spread its diametrally and profile its end surfaces, and simultaneously tilting the side cheeks progressively into parallelism with each other to cause them to bear on the full end surfaces of the blank, moving the rollers radially outwardly to make way for the diametral spread of the blank, and when the side cheeks have been moved into parallelism, forcing the rollers radially inwardly to compact the material of the blank and impose their profile on its circumference.
  • the blank if metal, will normally be preheated to a temperature at which it is easily plastically deformable. Relatively soft materials, however, such as lead, may be worked in the cold, the heat generated during the profiling operation assisting the process.
  • FIGURE 1 is a side view, partly in section, of apparatus for carrying out the invention, some components being omitted for the sake of clarity;
  • FIGURE 2 is a view through the apparatus on the line 2-2 of FIGURE 1;
  • FIGURE 3 is a fragmentary sectional view of a portion of the apparatus defining the profiling cavity, showing the arrangement at the start of the operation;
  • FIGURE 4 is a view similar to that of FIGURE 3, showing the arrangement at the conclusion of the operation.
  • rollers 10', 12 and 14 are arranged triangle-wise around the circumference of a blank 16.
  • the rollers 10, 12, 14 are rotatable about their axes and each is mounted in a ram 18 which extends from a hydraulic cylinder 20, so that each roller is movable inwardly towards the blank and outwardly from it. It would suffice if only one roller were so movable, to allow relative movement of the rollers among themselves, but it is preferable that each should be movable.
  • means be provided to drive at least one, and preferably all, the rollers, but such driving means are not illustrated in the drawings.
  • the three cylinders 20 are mounted in a triangular frame 22 attached to a base crosspiece 24.
  • the crosspiece 24 is fixed at its centre to a longitudinal base 26 (FIG- URE 1), so that the frame 22 stands at right angles to the longitudinal base 26.
  • the frame 22 and roller 12 have been omitted for the sake of clarity.
  • a pivot head 28 Centrally mounted on the base 26 is a pivot head 28 to which are pivoted, about a common point 30, two caliper arms 32, 32. The arms are moved about the point 30 by hydraulic cylinders 34, 34 each connected between the base 26 and the arm which it governs.
  • Mounted in each arm 32 is a fixed sleeve 40.
  • Set in bearings in the sleeves 40 are side cheeks 42 and 44 which bear on the ends of the blank 16.
  • a spike 46 extends axially through each check 42, 44 for indentation of the centres of the end faces of the blank 16.
  • the far ends of the side cheeks 42, 44 have a splined bore into which extends a complementally splined hollow shaft 36 to drive the check.
  • the shafts 36 are rotated by hydraulic motors 52, 52 of the radial piston type.
  • Each spike 46, extending through the hollow shaft 36 and motor 52, is axially movable within its cheek by a hydraulic cylinder 54 mounted at the end of the caliper arm 32.
  • the blank 16 starts the operation as a more or less cylindrical slug, conveniently cropped from a length of bar, and preheated to a suitable temperature. Its circumference is gripped and trued by the rollers during the initial stage of the profiling operation, while its ends are gripped and worked by the cheeks.
  • rollers 10, 12, 14 are withdrawn on their arms 18 by actuating the cylinders 20, and the cheeks 42, 44 are retracted by ac-.
  • the cheeks 42, 44 are rotated by means of the motors 52 to impart rotation to the blank.
  • the blank in turn causes the rollers 10, 12, 14 to rotate at the correct speed.
  • the hydraulic cylinders 34 are actuated to force the arms 32, 32, and thus the cheeks, inwardly on to the blank. This movement lessens the width of the profiling cavity and deforms the end faces of the blank.
  • the cheeks progressively bear on a greater area of the end faces of the blank, causing them to assume the required shape. Thinning of the blank is of course accompanied by diametral spread, and to make way for it, the rollers are moved outwardly by actuating the cylinders 20.
  • the spikes 46 may be progressively extended during the profiling operation. Entry of the spikes into the blank while the cheeks are tilted facilitates the formation of the indentations, since less force is required to form the indentation this way than would be required if the spike were forced head-on into the blank.
  • one of the spikes 46 may be withdrawn and the other advanced, by actuating its hydraulic cylinder 54, to pass right through the thickness of the formed article.
  • Formation of indentations by the spikes has the advantage that plastic flow of the material takes place radially outwardly from the axis of the blank. This assists in the proper filling of the article near the hole,
  • Patterning the side-cheeks with indentations or protrusions such as gear teeth falls well within the scope of the invention and it is to be noted that consistently precise components in all their dimensions can be produced by the invention as it caters for an overflow of material due to a variance of blank sizes.
  • a process of manufacturing a cylindrical article from a blank comprising gripping the blank between juxtaposed side checks that are tilted at an angle to each other to bear on a portion of the end surfaces of the blank, andbetween rollers located around the blank to bear on its circumference, rotating the side cheeks to impose rotation on the blank and the rollers, forcing the side cheeks towards each other to thin the blank and spread it diametrally and profile its end surfaces, and simultaneously tilting the side cheeks progressively towards and into parallelism with each other to cause them to bear on the full end surfaces of the blank, moving the rollers radially outwardly to make way for the diametral spread of the blank, and when the side cheeks have been moved into parallelism, forcing the rollers radially inwardly to compact the material of the blank and impose their profiles on its circumference.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
US634945A 1966-05-05 1967-05-01 Rolling of cylindrical components having non-planar ends Expired - Lifetime US3461701A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA662613 1966-05-05

Publications (1)

Publication Number Publication Date
US3461701A true US3461701A (en) 1969-08-19

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ID=25560986

Family Applications (1)

Application Number Title Priority Date Filing Date
US634945A Expired - Lifetime US3461701A (en) 1966-05-05 1967-05-01 Rolling of cylindrical components having non-planar ends

Country Status (6)

Country Link
US (1) US3461701A (enrdf_load_stackoverflow)
AT (1) AT283248B (enrdf_load_stackoverflow)
BE (1) BE697863A (enrdf_load_stackoverflow)
FR (1) FR1550081A (enrdf_load_stackoverflow)
GB (1) GB1141957A (enrdf_load_stackoverflow)
SE (1) SE322195B (enrdf_load_stackoverflow)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3717017A (en) * 1971-03-18 1973-02-20 Gen Motors Corp Gear forming
US3822574A (en) * 1973-04-02 1974-07-09 A Krupin Ring-rolling mill
US4116032A (en) * 1976-06-30 1978-09-26 Ernst Grob Method and apparatus for manufacturing straight or inclined toothed machine elements, especially spur gears by cold working
US4612790A (en) * 1984-06-19 1986-09-23 Zaklady Urzadzen Chemicznych Metalchem Method of drawing ribs on tubes
US4651548A (en) * 1984-11-27 1987-03-24 Heinrich Schmid Maschinenund Werkzeugbau AG Wobble-die forging machine
US4722211A (en) * 1981-11-06 1988-02-02 Mitsubishi Jukogyo Kabushiki Kaisha Method of forming hollow parts
US4996859A (en) * 1989-10-23 1991-03-05 A. J. Rose Manufacturing Company Method and apparatus for roll forming metal
US5454248A (en) * 1994-05-02 1995-10-03 Rays Engineering Co., Ltd. Method of shaping a wheel
US5537850A (en) * 1992-12-18 1996-07-23 Rays Engineering Co., Ltd. Method of shaping a wheel

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW235936B (enrdf_load_stackoverflow) * 1992-12-18 1994-12-11 Rezu Kotei Kk
RU2120345C1 (ru) * 1997-04-10 1998-10-20 Российский федеральный ядерный центр - Всероссийский научно-исследовательский институт технической физики Устройство для раскатки
RU2138358C1 (ru) * 1997-10-07 1999-09-27 Открытое акционерное общество "Кулебакский металлургический завод" Способ раскатки кольцевых заготовок
RU2134189C1 (ru) * 1998-06-24 1999-08-10 Научно-Производственное Объединение По Технологии Машиностроения "Цниитмаш" Устройство для непрерывной обработки обкаткой поверхности переходных фасок и отверстий
RU2316419C2 (ru) * 2005-10-25 2008-02-10 Общество с ограниченной ответственностью "Томскнефтехим" (ООО "Томскнефтехим") Устройство для упрочняющей обкатки роликами наружных поверхностей деталей

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US430750A (en) * 1890-06-24 Method of and apparatus for manufacturing metallic car-wheels
US965032A (en) * 1906-12-05 1910-07-19 Edwin E Slick Manufacture of wheels.
US1005230A (en) * 1911-01-30 1911-10-10 Scullin Gallagher Iron & Steel Company Method of making car-wheels, &c.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US430750A (en) * 1890-06-24 Method of and apparatus for manufacturing metallic car-wheels
US965032A (en) * 1906-12-05 1910-07-19 Edwin E Slick Manufacture of wheels.
US1005230A (en) * 1911-01-30 1911-10-10 Scullin Gallagher Iron & Steel Company Method of making car-wheels, &c.

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3717017A (en) * 1971-03-18 1973-02-20 Gen Motors Corp Gear forming
US3822574A (en) * 1973-04-02 1974-07-09 A Krupin Ring-rolling mill
US4116032A (en) * 1976-06-30 1978-09-26 Ernst Grob Method and apparatus for manufacturing straight or inclined toothed machine elements, especially spur gears by cold working
US4722211A (en) * 1981-11-06 1988-02-02 Mitsubishi Jukogyo Kabushiki Kaisha Method of forming hollow parts
US4612790A (en) * 1984-06-19 1986-09-23 Zaklady Urzadzen Chemicznych Metalchem Method of drawing ribs on tubes
US4651548A (en) * 1984-11-27 1987-03-24 Heinrich Schmid Maschinenund Werkzeugbau AG Wobble-die forging machine
US4996859A (en) * 1989-10-23 1991-03-05 A. J. Rose Manufacturing Company Method and apparatus for roll forming metal
US5537850A (en) * 1992-12-18 1996-07-23 Rays Engineering Co., Ltd. Method of shaping a wheel
US5454248A (en) * 1994-05-02 1995-10-03 Rays Engineering Co., Ltd. Method of shaping a wheel

Also Published As

Publication number Publication date
SE322195B (enrdf_load_stackoverflow) 1970-04-06
BE697863A (enrdf_load_stackoverflow) 1967-11-03
AT283248B (de) 1970-07-27
GB1141957A (en) 1969-02-05
FR1550081A (enrdf_load_stackoverflow) 1968-12-20

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