PL423886A1 - Method for skew rolling of ball forgings - Google Patents

Method for skew rolling of ball forgings

Info

Publication number
PL423886A1
PL423886A1 PL423886A PL42388617A PL423886A1 PL 423886 A1 PL423886 A1 PL 423886A1 PL 423886 A PL423886 A PL 423886A PL 42388617 A PL42388617 A PL 42388617A PL 423886 A1 PL423886 A1 PL 423886A1
Authority
PL
Poland
Prior art keywords
blank
helical roller
roller
helical
left helical
Prior art date
Application number
PL423886A
Other languages
Polish (pl)
Other versions
PL241107B1 (en
Inventor
Janusz Tomczak
Zbigniew Pater
Tomasz Bulzak
Original Assignee
Politechnika Lubelska
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 Politechnika Lubelska filed Critical Politechnika Lubelska
Priority to PL423886A priority Critical patent/PL241107B1/en
Publication of PL423886A1 publication Critical patent/PL423886A1/en
Publication of PL241107B1 publication Critical patent/PL241107B1/en

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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
    • B21B1/18—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a continuous process
    • 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
    • B21H1/22—Making articles shaped as bodies of revolution characterised by use of rolls having circumferentially varying profile ; Die-rolling

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)

Abstract

Sposób walcowania skośnego odkuwek kul, w którym walcuje się kule dwoma obracającymi się w tym samym kierunku walcami śrubowymi polega na tym, że półfabrykat (12) w kształcie odcinka pręta o średnicy równej średnicy kształtowanej odkuwki kuli (14) nagrzewa się powyżej temperatury rekrystalizacji, następnie umieszcza się nagrzany półfabrykat w przestrzeni wejściowej narzędzi, która utworzona jest przez walec śrubowy prawy (1) i walec śrubowy lewy (2) oraz prowadnicę (3), przy czym oś półfabrykatu (12) jest położona poniżej osi walca śrubowego prawego (1) i walca śrubowego lewego (2) o wartość mniejszą od średnicy półfabrykatu (12), następnie wprawia się walec śrubowy prawy (1) i walec śrubowy lewy (2) w ruch obrotowy w tym samym kierunku i z jednakową prędkością (n1) i chwyta się półfabrykat (12) stożkowymi powierzchniami (4 i 5), znajdującymi się na walcu śrubowym prawym (1) oraz walcu śrubowym lewym (2) i wprawia się półfabrykat (12) w ruch obrotowy w przeciwnym kierunku do obrotów walca śrubowego prawego (1) i walca śrubowego lewego (2) oraz jednocześnie przemieszcza się półfabrykat (12) wzdłuż osi półfabrykatu (12) w kierunku części środkowej walca śrubowego prawego (1) oraz walca śrubowego lewego (2), następnie zagłębia się w półfabrykat (12) śrubowe występy (6 i 7), znajdujące się na walcu śrubowym prawym (1) oraz walcu śrubowym lewym (2).The method of oblique rolling of ball forgings, in which balls are rolled by two helical rollers rotating in the same direction, consists in the fact that the blank (12) in the shape of a rod section with a diameter equal to the diameter of the shaped ball forging (14) is heated above the recrystallization temperature, then the heated blank is placed in the tool input space, which is formed by the right helical roller (1) and the left helical roller (2) and the guide (3), whereby the axis of the blank (12) is located below the right helical roller (1) and the left helical roller (2) by less than the diameter of the blank (12), then the right helical roller (1) and the left helical roller (2) are rotated in the same direction and with the same speed (n1) and the blank ( 12) conical surfaces (4 and 5), located on the right helical roller (1) and the left helical roller (2) and the blank is inserted ykat (12) rotates in the opposite direction to the rotation of the right helical roller (1) and the left helical roller (2) and simultaneously moves the blank (12) along the axis of the blank (12) towards the center of the right screw (1) and the left helical roller (2), then it sinks into the blank (12) helical projections (6 and 7), located on the right helical roller (1) and the left helical roller (2).

PL423886A 2017-12-14 2017-12-14 Method for skew rolling of ball forgings PL241107B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL423886A PL241107B1 (en) 2017-12-14 2017-12-14 Method for skew rolling of ball forgings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL423886A PL241107B1 (en) 2017-12-14 2017-12-14 Method for skew rolling of ball forgings

Publications (2)

Publication Number Publication Date
PL423886A1 true PL423886A1 (en) 2019-06-17
PL241107B1 PL241107B1 (en) 2022-08-01

Family

ID=66809763

Family Applications (1)

Application Number Title Priority Date Filing Date
PL423886A PL241107B1 (en) 2017-12-14 2017-12-14 Method for skew rolling of ball forgings

Country Status (1)

Country Link
PL (1) PL241107B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL442342A1 (en) * 2022-09-21 2024-03-25 Firma Codogni Spółka Jawna Method of rolling balls
PL442343A1 (en) * 2022-09-21 2024-03-25 Firma Codogni Spółka Jawna Method of rolling balls

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL398915A1 (en) * 2012-04-23 2013-10-28 Politechnika Lubelska Oblique rolling method with two helical-rollers of ball type products
CN104907835A (en) * 2015-06-25 2015-09-16 侯宇岷 Multi-head rotary-cut roll forging roller
PL224271B1 (en) * 2013-06-25 2016-12-30 Lubelska Polt Method and tool for skew rolling of balls with concave rollers
PL225772B1 (en) * 2014-02-24 2017-05-31 Lubelska Polt Method for helical rolling
PL420346A1 (en) * 2017-01-30 2017-10-09 Politechnika Lubelska Tools and the method for skew rolling ball forgings

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL398915A1 (en) * 2012-04-23 2013-10-28 Politechnika Lubelska Oblique rolling method with two helical-rollers of ball type products
PL224271B1 (en) * 2013-06-25 2016-12-30 Lubelska Polt Method and tool for skew rolling of balls with concave rollers
PL225772B1 (en) * 2014-02-24 2017-05-31 Lubelska Polt Method for helical rolling
CN104907835A (en) * 2015-06-25 2015-09-16 侯宇岷 Multi-head rotary-cut roll forging roller
PL420346A1 (en) * 2017-01-30 2017-10-09 Politechnika Lubelska Tools and the method for skew rolling ball forgings

Also Published As

Publication number Publication date
PL241107B1 (en) 2022-08-01

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