US3869895A - Arrangement for forming solids of rotation by a cross wedge rolling process with three rolls - Google Patents

Arrangement for forming solids of rotation by a cross wedge rolling process with three rolls Download PDF

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Publication number
US3869895A
US3869895A US460168A US46016874A US3869895A US 3869895 A US3869895 A US 3869895A US 460168 A US460168 A US 460168A US 46016874 A US46016874 A US 46016874A US 3869895 A US3869895 A US 3869895A
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United States
Prior art keywords
forming
tool
rolling
objects
wedge shaped
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Expired - Lifetime
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US460168A
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English (en)
Inventor
Jiri Holub
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VYZKUMNY USTAV TVARECICH STREJU A TECHNOLOGIE TVARENI
VYZKUMNYUSTAV TVARECICH STREJU A TECHNOLOGIE TVARENI
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VYZKUMNYUSTAV TVARECICH STREJU A TECHNOLOGIE TVARENI
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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
    • B21H1/18—Making articles shaped as bodies of revolution cylinders, e.g. rolled transversely cross-rolling

Definitions

  • a twin roll rolling mill is capable of rolling one size of rolls products within the range of their size and within a large range of diameters and lengths. Three roll rolling mills are however in this respect limited both regarding rolled diameters and rolled lengths.
  • the maximum diameters of three rolls and of the tools are limited by the capability of rolling the object of required diameter without a danger that the tools are making mutual contact. It is impossible to roll on actual three roll rolling mills products of small diameters with currently used tools of a large diameter and vice versa, i.e. with tools of small diameter to roll products of larger diameters, in the latter case due to lack of strength of the rolling device. Tools of a small diameter have a small circumference and consequently are capa ble of rolling short lengths only.
  • the wedge shaped forming tools have forming ledges of different thickness corresponding to the diameter dimension of the rolled object.
  • the forming tools are also provided with a triangular cavity of sufficient depth and width to enable the rolling of objects of smaller diameter.
  • a free passage of the external part of the wedge shaped tool through the triangular cavity of the adjacent wedge shaped tool is provided so that one wedge shaped tool may always enter the cavity of its adjacent wedge shaped tool.
  • FIG. 1 is a side view of the rolls, rolling an object of a larger diameter
  • FIG. 2 the same view when rolling an object of medium diameter
  • FIG. 3. the same view when rolling object of a small diameter
  • FIG. 4 is a cross sectional view of wedge shaped forming bodies rolling a solid of rotation prior to their entrance into cavities of adjacent forming bodies, the
  • FIG. 5 is the same view after parts of the wedge shaped forming bodies have entered cavities of adjacent forming bodies;
  • FIG. 6 is a top view of a forming body with a part of an adjacent body penetrated into its cavity, the latter forming body seen in a sectional view taken along a plane indicated in FIG. 5 by the line AA and
  • FIG. 7 is a sectional view of the forming body taken along a plane, indicated in FIG. 6 by C-C.
  • FIG. 1 shows a three roll rolling mill where wedge shaped tools 1",2", 3" of equal dimensions and shape are fixed on three cylinders 4 of equal diameter D, rotating in the same direction and arranged symmetrically with respect to the axis of the rolled object 5".
  • the rolled object 5" rotating in the opposite direction is situated in the space between the three cylinders.
  • a product of relatively large diameter is rolled in this case, the tools on the three cylinders therefore do not come in mutual contact.
  • FIG. 2 shows the rolling ofa product 5' of halfthe diameter as in FIG. 1.
  • the diameter D of the cylinders 4 is the same as in FIG. 1, the tools I, 2, 3' are however higher and mutually penetrating each other.
  • the tool 1' penetrates into the space of tool 2, the tool 2' into the space of tool 3' and tool 3' into the space tool 1.
  • FIG. 3 shows the rolling of a product 5 of the smallest diameter.
  • the diameter of the cylinders 4 is the same as in the preceding cases, the tools 1, 2, 3 are however still higher.
  • the mutual penetration of the tools is also to a larger depth.
  • FIG. 4 shows a cross section of three wedge shaped forming tools 1, 2, 3, the section taken along the plane, indicated in FIG. 6 by 8-8.
  • the three tools move in the direction of the indicated arrows and are in a position where their tips 6 start to penetrate into cavities of neighboring tools.
  • the triangular cavities of all tools must be as large to enable a safe passage of the wedge of the neighboring tool into this cavity.
  • the dimensions (width and depth) and the external dimensions of the entering wedges are determined by the width b of the forming ledges, which has to be conformed with the depth into which the tools are entering. The more the tools mutually penetrate (in case of rolling objects of small diameter) a smaller width b of the ledges and a larger depth c of the cavity is required and vice versa, for a smaller penetration, a larger width b of the ledges and a smaller depth c of the cavity is required.
  • FIG. 6 shows a top view of the tool I viewed in the direction of the arrow S from FIG. 5 and a cross section 9 of the tool 3 along a plane indicated in FIG. 5 by A-A.
  • the points 7 8 shows the wides places of the penetrated tips of the tool 3 and points 7 8 shows positions of points 7, 8 with respect to the cavity of the tool 1.
  • An arrangement for forming of solids of rotation by cross wedge rolling comprising three working cylinders rotating in the same direction and symmetrically arranged with respect to the axis of the rolled object
  • each of said working cylinders supporting an exchangeable wedge shaped forming tool
  • said forming tools having forming ledges converging in the direction of their rotating movement, saidforming ledges having a thickness corresponding to the dimensions of the diameters of objects to be rolled, a triangular cavity in each forming tool of sufficient depth and width between said forming ledges of each tool, to enable the rolling ofobjects of small diameter.
  • a free passage in the external part of the wedge shaped tool through the triangular cavity of the adjacent wedge shaped tool so that always one wedge shaped tool may enter the cavity of its adjacent wedge shaped tool.
  • one dimension of the diameter of said working cylinders ofa selected size determined by the range of diameters of objects to be rolled within this range rolls objects from the smallest to the largest diameter of this range at approximately equal lengths both for the smallest and for the largest diameters of the objects to be rolled.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Metal Rolling (AREA)
US460168A 1973-04-13 1974-04-11 Arrangement for forming solids of rotation by a cross wedge rolling process with three rolls Expired - Lifetime US3869895A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS2635A CS171399B1 (cs) 1973-04-13 1973-04-13

Publications (1)

Publication Number Publication Date
US3869895A true US3869895A (en) 1975-03-11

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US460168A Expired - Lifetime US3869895A (en) 1973-04-13 1974-04-11 Arrangement for forming solids of rotation by a cross wedge rolling process with three rolls

Country Status (5)

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US (1) US3869895A (cs)
JP (1) JPS5068942A (cs)
CS (1) CS171399B1 (cs)
DE (1) DE2415805A1 (cs)
GB (1) GB1432899A (cs)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105032930A (zh) * 2014-11-07 2015-11-11 上海理工大学 三辊立式楔横轧机
US20170151596A1 (en) * 2015-11-30 2017-06-01 Victaulic Company Cam Grooving Machine
US20180318894A1 (en) * 2017-05-03 2018-11-08 Victaulic Company Cam Grooving Machine with Cam Stop Surfaces
US11383285B2 (en) 2017-12-19 2022-07-12 Victaulic Company Pipe grooving device
US11446725B2 (en) 2019-08-21 2022-09-20 Victaulic Company Pipe grooving device having flared cup
US11759839B2 (en) 2020-09-24 2023-09-19 Victaulic Company Pipe grooving device
US11898628B2 (en) 2015-11-30 2024-02-13 Victaulic Company Cam grooving machine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85106584B (zh) * 1985-07-29 1987-01-14 东北工学院 三辊楔横轧轴件的方法及专用装置
CN111185550B (zh) * 2020-01-14 2021-10-15 北京科技大学 一种楔横轧圆周方向进料装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US412626A (en) * 1889-10-08 Machine for forming axle-journals
US1493836A (en) * 1920-12-02 1924-05-13 Amsy L Wurster Roll press

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US412626A (en) * 1889-10-08 Machine for forming axle-journals
US1493836A (en) * 1920-12-02 1924-05-13 Amsy L Wurster Roll press

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105032930A (zh) * 2014-11-07 2015-11-11 上海理工大学 三辊立式楔横轧机
US20170151596A1 (en) * 2015-11-30 2017-06-01 Victaulic Company Cam Grooving Machine
US11898628B2 (en) 2015-11-30 2024-02-13 Victaulic Company Cam grooving machine
US11885400B2 (en) 2015-11-30 2024-01-30 Victaulic Company Method of forming grooves in pipe elements
US10525517B2 (en) * 2015-11-30 2020-01-07 Victaulic Company Cam grooving machine
US11173533B2 (en) 2015-11-30 2021-11-16 Victaulic Company Cam grooving machine
US11549574B2 (en) 2015-11-30 2023-01-10 Victaulic Company Cam grooving machine
US11499618B2 (en) 2015-11-30 2022-11-15 Victaulic Company Cam grooving machine
US11441663B2 (en) 2017-05-03 2022-09-13 Victaulic Company Cam grooving machine with cam stop surfaces
US11441662B2 (en) 2017-05-03 2022-09-13 Victaulic Company Cam with stop surfaces
US10525516B2 (en) * 2017-05-03 2020-01-07 Victaulic Company Cam grooving machine with cam stop surfaces
US20180318894A1 (en) * 2017-05-03 2018-11-08 Victaulic Company Cam Grooving Machine with Cam Stop Surfaces
US11383285B2 (en) 2017-12-19 2022-07-12 Victaulic Company Pipe grooving device
US12055203B2 (en) 2017-12-19 2024-08-06 Victaulic Company Cams for pipe grooving device
US11446725B2 (en) 2019-08-21 2022-09-20 Victaulic Company Pipe grooving device having flared cup
US11883871B2 (en) 2019-08-21 2024-01-30 Victaulic Company Pipe receiving assembly for a pipe grooving device
US11759839B2 (en) 2020-09-24 2023-09-19 Victaulic Company Pipe grooving device

Also Published As

Publication number Publication date
JPS5068942A (cs) 1975-06-09
GB1432899A (en) 1976-04-22
CS171399B1 (cs) 1976-10-29
DE2415805A1 (de) 1974-10-24

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