PL414306A1 - Method for reducing outer diameter of tube semi-finished products - Google Patents

Method for reducing outer diameter of tube semi-finished products

Info

Publication number
PL414306A1
PL414306A1 PL414306A PL41430615A PL414306A1 PL 414306 A1 PL414306 A1 PL 414306A1 PL 414306 A PL414306 A PL 414306A PL 41430615 A PL41430615 A PL 41430615A PL 414306 A1 PL414306 A1 PL 414306A1
Authority
PL
Poland
Prior art keywords
blank
rollers
outer diameter
roller
axis
Prior art date
Application number
PL414306A
Other languages
Polish (pl)
Other versions
PL226885B1 (en
Inventor
Zbigniew Pater
Janusz Tomczak
Paulina Pater
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 PL414306A priority Critical patent/PL226885B1/en
Publication of PL414306A1 publication Critical patent/PL414306A1/en
Publication of PL226885B1 publication Critical patent/PL226885B1/en

Links

Landscapes

  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

Sposób redukcji średnicy zewnętrznej półfabrykatów rurowych, zwłaszcza skrajnych końców półfabrykatów rurowych charakteryzuje się tym, że półfabrykat (7) w kształcie odcinka tulei umieszcza się jednym końcem w otworze (5) uchwytu (4) podającego, który ma możliwość swobodnego obrotu dookoła własnej osi, następnie wprowadza się drugi koniec półfabrykatu (7) między trzy jednakowe walce (1a), (1b) i (1c), zaś położenie osiowe półfabrykatu (7) ustala się przy pomocy zderzaka (6), następnie wprawia się dwa walce (1a) i (1c) w ruch obrotowy w tym samym kierunku i ze stałą prędkością (n), która wynosi 30 obr/min, po czym wycofuje się zderzak (6) z przestrzeni roboczej walców (1a), (1b) i (1c) i wprawia się w ruch postępowy walec (1b), który przemieszcza się ze stałą prędkością, która wynosi 1 mm/s w kierunku osi półfabrykatu (7), przy czym walec (1b) ma możliwość swobodnego obrotu dookoła własnej osi, następnie oddziaływuje się na półfabrykat (7) powierzchniami (3a), (3b) i (3c) kształtującymi, które znajdują się na walcach (1a), (1b) i (1c) i wprawia się półfabrykat (7) w ruch obrotowy (n1) w kierunku przeciwnym do kierunku obrotów walców (1a) i (1c), jednocześnie wprawia się w ruch obrotowy walec (1b), który obracany jest w tym samym kierunku i z tą samą prędkością co walce (1a) i (1b).The method of reducing the outer diameter of pipe blanks, especially the extreme ends of pipe blanks is characterized by the fact that the blank (7) in the shape of a sleeve section is placed with one end in the hole (5) of the feed holder (4), which can be freely rotated around its axis, then the other end of the blank (7) is inserted between three identical rollers (1a), (1b) and (1c), and the axial position of the blank (7) is determined by means of a stop (6), then two rollers (1a) and ( 1c) in rotational motion in the same direction and with a constant speed (n), which is 30 rpm, after which the bumper (6) retracts from the working space of the rollers (1a), (1b) and (1c) and is put in in a forward motion, a roller (1b) that moves at a constant speed of 1 mm / s in the direction of the blank axis (7), whereby the roller (1b) can rotate freely around its axis, then it interacts on the blank (7) with the shaping surfaces (3a), (3b) and (3c) that are on the rollers (1a), (1b) and (1c) and the blank (7) is put into rotation (n1) in the direction opposite to the direction of rotation of the rollers (1a) and (1c), the roller (1b) is simultaneously rotated, which is rotated in the same direction and at the same speed as the rollers (1a) and (1b).

PL414306A 2015-10-07 2015-10-07 Method for reducing outer diameter of tube semi-finished products PL226885B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL414306A PL226885B1 (en) 2015-10-07 2015-10-07 Method for reducing outer diameter of tube semi-finished products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL414306A PL226885B1 (en) 2015-10-07 2015-10-07 Method for reducing outer diameter of tube semi-finished products

Publications (2)

Publication Number Publication Date
PL414306A1 true PL414306A1 (en) 2016-12-19
PL226885B1 PL226885B1 (en) 2017-09-29

Family

ID=57542540

Family Applications (1)

Application Number Title Priority Date Filing Date
PL414306A PL226885B1 (en) 2015-10-07 2015-10-07 Method for reducing outer diameter of tube semi-finished products

Country Status (1)

Country Link
PL (1) PL226885B1 (en)

Also Published As

Publication number Publication date
PL226885B1 (en) 2017-09-29

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